According to the present invention, saw tooth groups (12) each comprises: a first saw tooth small group (14) which is composed of three or more sheets of contiguous left set teeth (18, 20, 22) as a plurality of saw teeth, and three of more contiguous right set teeth (24, 26, 28) that trail or lead the left set teeth, and which includes the smallest inter-tooth pitch; and a second saw tooth small group (16) which is composed of straight teeth (30) as a plurality of saw teeth and left and right set teeth (32, 34) alternately arranged in the saw edge traveling direction, and which includes the largest inter-tooth pitch. The largest inter-tooth pitch is two or more times the smallest inter-tooth pitch, and the band width dimensions of the left set teeth (18, 20, 22, 32), the band width dimensions of the right set teeth (24, 26, 28, 34), and the band width dimension of the straight teeth (30) are set to the same dimension.
A hard tip band-saw blade includes alternating sawtooth groups. Each of the sawtooth groups includes two sawtooth subgroups. The first sawtooth subgroup includes, as a plurality of sawteeth, a first leading tooth and a first following tooth and the second sawtooth subgroup includes, as a plurality of sawteeth, a second leading tooth, a second following tooth, and a third following tooth. Each tooth top corner part of a hard tip of the first following tooth, a tooth top corner part on a left side of a hard tip of the second following tooth, and a tooth top corner part on a right side of a hard tip of the third following tooth most outwardly protrude in a left-right direction.
In a circularization step, both ends of a band saw blade (1) are welded together to form a circular shape, the band saw blade having a band-shaped body section (1a) and a toothed section (1b) including a plurality of teeth formed on one side of the body section. In a polishing step, an inner surface (14A), an outer surface (14B), and an edge surface (13) of the circularized circular band saw blade (1E) are polished, the edge surface being on the side opposite the toothed section. In a tooth tip forming step, after the polishing step, the circularized circular band saw blade is positioned using the edge surface and either the inner surface or the outer surface as references, cutting tips (15) are attached by welding to the tooth tips of the plurality of teeth, and the attached cutting tips are polished to form the tooth tip shapes.
B23D 63/12 - Affûtage des arêtes des dents de scies par meulage
B23D 61/12 - Lames de scies droitesLames de scies à ruban
B23D 65/00 - Fabrication d'outils de machines à scier ou de dispositifs de sciage pour la coupe de n'importe quelle sorte de matériau
B23P 15/28 - Fabrication d'objets déterminés par des opérations non couvertes par une seule autre sous-classe ou un groupe de la présente sous-classe d'outils de coupe
A band saw machine includes a base having a cutting fluid reservoir, a saw blade housing movable in an up-down direction, a pair of saw blade wheels around which a band saw blade are wound, a downstream main vise having a pair of downstream main vise jaws for clamping a product correspondent portion of the workpiece, a discharge table for discharging a product to an outside of the cutting fluid reservoir, and a product feed mechanism that feed the product cut out from the workpiece to a side on an upstream end of the discharge table. A working-side running area of the band saw blade and a working-opposite-side running area of the band saw blade are positioned within the cutting fluid reservoir, and the upstream end of the discharge table is positioned on a downstream side from a wheel center line connecting centers of the pair of saw blade wheels.
B23D 53/04 - Machines à scier ou dispositifs de sciage à lames de scie à ruban se comportant, pendant l'emploi, comme un ruban sans fin, p. ex. pour découper selon des contours déterminés avec des roues pour supporter le ruban, montées de façon à pouvoir se déplacer ou pivoter, pour d'autres buts que le seul réglage
B23D 55/04 - Machines à scier ou dispositifs de sciage à lames de scie à ruban, caractérisés uniquement par la structure d'organes particuliers des dispositifs d'avance ou de serrage des pièces
B23Q 11/00 - Accessoires montés sur les machines-outils pour maintenir les outils ou les organes de la machine dans de bonnes conditions de travail ou pour refroidir les pièces travailléesDispositifs de sécurité spécialement combinés aux machines-outils, disposés dans ces machines ou spécialement conçus pour être utilisés en relation avec ces machines
B23D 55/00 - Machines à scier ou dispositifs de sciage à lames de scie à ruban, caractérisés uniquement par la structure d'organes particuliers
B23D 55/06 - Machines à scier ou dispositifs de sciage à lames de scie à ruban, caractérisés uniquement par la structure d'organes particuliers de l'entraînement des lames de scie à rubanMachines à scier ou dispositifs de sciage à lames de scie à ruban, caractérisés uniquement par la structure d'organes particuliers des montures de roues
B23D 55/08 - Machines à scier ou dispositifs de sciage à lames de scie à ruban, caractérisés uniquement par la structure d'organes particuliers des dispositifs de guidage ou d'avance des lames de scie à ruban
B23Q 3/10 - Dispositifs auxiliaires, p. ex. collets, allonges
5.
Circular saw machine capable of suppressing runout of circular saw blade
A circular saw machine capable of suppressing a cutting-bending of a circular saw blade during cutting, and improving processing accuracy for a cutting surface of a workpiece, regardless of a size of a width of the workpiece. A circular saw machine has: a processing head capable of moving in a cutting direction and its opposite direction and having a circular saw blade capable of rotating; and a movable saw blade guide set provided to be movable in the cutting direction and the opposite direction on the processing head, for guiding to pinch a body part of the circular saw blade on a diameter direction inner side of a cutting region in the circular saw blade. The movable saw blade guide set is configured to move relatively with respect to the processing head in the opposite direction, in coordination with a movement in the cutting direction of said processing head.
B23D 47/00 - Machines à scier ou dispositifs de sciage travaillant au moyen de lames circulaires, caractérisés uniquement par la structure d'organes particuliers
B23D 45/02 - Machines à scier ou dispositifs de sciage à lames circulaires ou à disques à friction la lame circulaire ou la pièce à scier étant montée sur un chariot
B23D 47/08 - Machines à scier ou dispositifs de sciage travaillant au moyen de lames circulaires, caractérisés uniquement par la structure d'organes particuliers des dispositifs pour amener la lame circulaire au contact de la pièce à scier ou l'en retirer
B27B 5/30 - Machines à scier travaillant avec des lames de scie circulairesOrganes ou équipements ad hoc DétailsMachines à scier travaillant avec des lames de scie circulairesOrganes ou équipements ad hoc Parties constitutivesAccessoires pour monter ou fixer les lames ou les arbres de scies
B23D 47/02 - Machines à scier ou dispositifs de sciage travaillant au moyen de lames circulaires, caractérisés uniquement par la structure d'organes particuliers des bâtisMachines à scier ou dispositifs de sciage travaillant au moyen de lames circulaires, caractérisés uniquement par la structure d'organes particuliers d'agencements de guidage de la table de travail ou du chariot porte-scie
A vertical bandsaw machine (10) is configured in a manner such that a gate-type frame (58) which straddles the movement region on a table (22) is positioned in an upright manner on the top surface of a base (18) of a bed (12). A saw blade housing (48) for storing a saw blade wheel (56) around which a bandsaw blade (B) is wound is secured to the gate-type frame (58).
B23D 53/06 - Machines à scier ou dispositifs de sciage à lames de scie à ruban se comportant, pendant l'emploi, comme un ruban sans fin, p. ex. pour découper selon des contours déterminés comportant une table de travail pouvant se déplacer ou pivoter
B23D 55/02 - Machines à scier ou dispositifs de sciage à lames de scie à ruban, caractérisés uniquement par la structure d'organes particuliers des bâtisMachines à scier ou dispositifs de sciage à lames de scie à ruban, caractérisés uniquement par la structure d'organes particuliers des tables
B23D 55/08 - Machines à scier ou dispositifs de sciage à lames de scie à ruban, caractérisés uniquement par la structure d'organes particuliers des dispositifs de guidage ou d'avance des lames de scie à ruban
A feed/clamp apparatus includes a feed vise mechanism provided upstream from a cutting position, and a downstream vise mechanism provided just downstream from the cutting position. The feed vise mechanism includes first/second feed vise jaws, a downstream moving cylinder for moving the first feed vise jaw, and a downstream shifting cylinder for shifting the second feed vise jaw. The downstream vise mechanism includes first/second downstream vise jaws, a downstream moving cylinder for moving the first downstream vise jaw, and a downstream shifting cylinder for shifting a second downstream vise jaw. A vise surface of the second downstream vise jaw is located on one side of the vise reference position when the downstream shifting cylinder is located its stroke end on the one side. A thrust force of the downstream shifting cylinder toward the one side is made equal to a thrust force of the downstream moving cylinder toward another side.
B23D 47/04 - Machines à scier ou dispositifs de sciage travaillant au moyen de lames circulaires, caractérisés uniquement par la structure d'organes particuliers des dispositifs d'alimentation, de mise en place, de serrage ou de rotation de la pièce
B23D 33/02 - Agencements pour tenir, guider ou faire avancer les pièces pendant le travail
B23D 55/04 - Machines à scier ou dispositifs de sciage à lames de scie à ruban, caractérisés uniquement par la structure d'organes particuliers des dispositifs d'avance ou de serrage des pièces
B26D 7/06 - Dispositions pour faire avancer ou évacuer les pièces autres que les feuilles, les bandes ou les filaments
B25B 5/16 - Parties constitutives, p. ex. mâchoires, fixations des mâchoires
B26D 7/08 - Moyens de traitement de la pièce ou de l'outil de coupe pour faciliter la coupe
B23D 33/04 - Agencements pour tenir, guider ou faire avancer les pièces pendant le travail pour faire des coupes circulaires
Provided is a hard tip band-saw blade in which groups of saw teeth are repeatedly provided and each group of saw teeth is constituted by two groups of small saw teeth. In a first group of small saw teeth, a plurality of saw teeth include a first leading tooth and a first following tooth, and in a second group of small saw teeth, a plurality of saw teeth include a second leading tooth, a second following tooth, and a third following tooth. Among tooth-tip corner sections, the following protrude out by the largest amount in the left-right direction: tooth-tip corner sections of the hard tip of the first following tooth; a tooth-tip corner section on the left side of the hard tip of the second following tooth; and a tooth-tip corner section on the right side of the hard tip of the third following tooth.
Provided is a hard-tip band saw blade in which it is possible to sufficiently reduce manufacturing costs while improving durability. In this hard-tip band saw blade 10, left-side corner parts of hard tips 16T (20T, 26T) of right offset teeth 16 (20, 26) and right-side corner parts of hard tips 18T (24T, 28T) of left offset teeth 18 (24, 28) are formed into flange parts B that protrude in the cutting direction with respect to the tooth tip edges of straight teeth 14 (22). Tooth tip chamfers C are formed along the tooth tip edges of the the tooth tips of hard tips 14T (22T) of the straight teeth 14 (22), the tooth tips of the hard tips 16T (20T, 26T) of the right offset teeth 16 (20, 26), and the tooth tips of the hard tips 18T (24T, 28T) of the left offset teeth 18 (24, 28). The proportion of offset teeth in a saw tooth group 12 is set to 71-83%.
In a working machine, left and right side walls are erected on a bed, a forward/backward saddle is movable in forward/backward directions, left and right sides of the forward/backward saddle are movably supported with the left and right side walls, a forward/backward drive device is arranged on the left and right side walls, to move the forward/backward saddle in the forward/backward directions, a left/right saddle is arranged on the forward/backward saddle and movable in left/right directions, a left/right drive device is arranged on the forward/backward saddle on each of forward/backward sides of the left/right saddle, to move the left/right saddle in the left/right directions, an up/down slider is movable up and down and arranged on the left/right saddle, a lower portion of the up/down slider is provided with a processing head to which a processing tool for processing a work set on the bed is removably and replaceably attached.
B23B 11/00 - Machines à tourner automatiques ou semi-automatiques comportant l'équipement nécessaire à d'autres procédés de travail, p. ex. pour le mortaisage, le fraisage, le laminage
B23C 1/00 - Machines à fraiser non conçues pour des pièces particulières ou des opérations spéciales
B23C 1/14 - Machines à fraiser non conçues pour des pièces particulières ou des opérations spéciales avec une table porte-pièce rotative
B23Q 1/01 - Bâtis, bancs, colonnes ou éléments similairesAgencement des glissières de guidage
B23Q 1/62 - Supports mobiles ou réglables d'outils ou de pièces utilisant des mécanismes particuliers avec des guidages en translation uniquement avec deux guidages en translation uniquement à axes perpendiculaires, p. ex. chariots à mouvements transversaux
B23C 1/12 - Machines à fraiser non conçues pour des pièces particulières ou des opérations spéciales avec une broche orientable sous différents angles, p. ex. horizontalement ou verticalement
B23B 3/06 - Machines ou dispositifs à tourner caractérisés uniquement par l'agencement particulier des éléments de structure
12.
METHOD FOR PRODUCING BANDSAW BLADE THAT LENGTHENS SERVICE LIFE OF BARREL MEMBER, AND BANDSAW BLADE
The purpose of the present invention is to provide: a method for producing a bandsaw blade that lengthens the service life of a barrel member; and a bandsaw blade. Provided is a method for producing a bandsaw blade, the method comprising: a step (a) in which a plurality of sawtooth mounts 5A, 5B each provided with a cutting blade section 9 at a distal end section are formed at appropriate intervals on a belt-shaped member 3; and a step (b) in which chamfering 15A, 15B is applied according to a material removal process method on two side edges of a tooth bottom surface 13 in a gullet section 11 formed between the sawtooth mounts 5A, 5B. Due to this configuration, provided is a bandsaw blade with which a plurality of sawtooth mounts each provided with a cutting blade section at a distal end section are provided at appropriate intervals on a belt-shaped member, wherein two side edges of a tooth bottom surface in a gullet section formed between the sawtooth mounts are chamfered according to a material removal process method.
A circular sawing machine with which it is possible to suppress bending while cutting of a circular saw blade 19 during a cutting process and to increase machining precision on the cutting surface of a workpiece W, regardless of the width of the workpiece W. The circular sawing machine 1 is provided with: a machining head 21 having the circular saw blade 19, the machining head 21 being able to move in an incision direction D1 and the opposite direction D2, and being able to rotate; and a movable saw-blade guide set 69 that is provided to the machining head 21 so as to be able to move in the incision direction D1 and the opposite direction D2, the movable saw-blade guide set 69 guiding so as to sandwich a body section 19b of the circular saw blade 19 on the inner side in the radial direction of a trimming region 19A of the circular saw blade 19. The movable saw-blade guide set 69 is configured so as to be linked to the movement of the machining head 21 in the incision direction D1 when the incision of the workpiece W proceeds, and to move relative to the machining head in the opposite direction D2.
B23D 47/00 - Machines à scier ou dispositifs de sciage travaillant au moyen de lames circulaires, caractérisés uniquement par la structure d'organes particuliers
B23D 45/02 - Machines à scier ou dispositifs de sciage à lames circulaires ou à disques à friction la lame circulaire ou la pièce à scier étant montée sur un chariot
A band saw machine comprises: a base that comprises a cutting fluid reservoir; a saw blade housing that can move in the vertical direction; a pair of saw blade wheels on which a band saw blade is wound; a downstream body vise that has a pair of downstream body vise jaws that hold the portion of a workpiece that corresponds to a product; a discharge table for discharging the product to the outside of the cutting fluid reservoir; and a product transport mechanism that transports the product cut from the workpiece to the upstream end side of the discharge table. A traveling area on the machining side of the band saw blade and a traveling area on the non-machining side of the band saw blade are positioned inside the cutting fluid reservoir, and the upstream end of the discharge table is positioned further on the downstream side than the center line of the wheels that joins the centers of the pair of saw blade wheels.
B23D 55/04 - Machines à scier ou dispositifs de sciage à lames de scie à ruban, caractérisés uniquement par la structure d'organes particuliers des dispositifs d'avance ou de serrage des pièces
B23D 55/00 - Machines à scier ou dispositifs de sciage à lames de scie à ruban, caractérisés uniquement par la structure d'organes particuliers
B23Q 11/00 - Accessoires montés sur les machines-outils pour maintenir les outils ou les organes de la machine dans de bonnes conditions de travail ou pour refroidir les pièces travailléesDispositifs de sécurité spécialement combinés aux machines-outils, disposés dans ces machines ou spécialement conçus pour être utilisés en relation avec ces machines
15.
WORKPIECE CONVEYING/IMMOBILIZING APPARATUS AND CUTTING MACHINE
A workpiece conveying/immobilizing apparatus according to the present invention is provided with: a conveying vise mechanism provided on the upstream side of a cutting position of a workpiece; and a downstream main vise mechanism provided on the immediate downstream side of the cutting position. The conveying vise mechanism has: first and second conveying vise jaws; a conveying vise moving cylinder that moves the first conveying vise jaw in a width direction; and a conveying vise shifting cylinder that shifts the second conveying vise jaw in the width direction. The downstream main vise mechanism has: first and second downstream main vise jaws; a downstream main moving cylinder that moves the first downstream main vise jaw in the width direction; and a downstream main shifting cylinder that shifts the second downstream main vise jaw in the width direction. At the stroke end on one side of the downstream main shifting cylinder in the width direction, the vise surface of the second downstream main vise jaw is positioned on one side of a vise reference position in the width direction. Thrust to one side in the width direction of the downstream main displacing cylinder is set equal to thrust to the other side in the width direction of the downstream moving cylinder.
B23D 55/04 - Machines à scier ou dispositifs de sciage à lames de scie à ruban, caractérisés uniquement par la structure d'organes particuliers des dispositifs d'avance ou de serrage des pièces
B23D 33/02 - Agencements pour tenir, guider ou faire avancer les pièces pendant le travail
B23D 47/04 - Machines à scier ou dispositifs de sciage travaillant au moyen de lames circulaires, caractérisés uniquement par la structure d'organes particuliers des dispositifs d'alimentation, de mise en place, de serrage ou de rotation de la pièce
B26D 7/06 - Dispositions pour faire avancer ou évacuer les pièces autres que les feuilles, les bandes ou les filaments
B26D 7/08 - Moyens de traitement de la pièce ou de l'outil de coupe pour faciliter la coupe
16.
Anti-vibration method of band saw blade in band saw machine and anti-vibration arrangement
An anti-vibration arrangement for a band saw blade in a band saw machine, which is constructed to cut a workpiece by shifting the endless band saw blade running in a circulating manner to a cutting direction, wherein nozzles are provided for injecting high-pressure cutting liquid toward each side face of the body of the band saw blade on the entering-side where the band saw blade enters into a cut groove of the workpiece formed by the band saw blade in the cutting process of the band saw machine.
B23D 55/08 - Machines à scier ou dispositifs de sciage à lames de scie à ruban, caractérisés uniquement par la structure d'organes particuliers des dispositifs de guidage ou d'avance des lames de scie à ruban
B23D 59/04 - Dispositifs pour la lubrification ou le refroidissement des lames de scies droites ou à ruban
B23Q 11/10 - Dispositions pour le refroidissement ou la lubrification des outils ou des pièces travaillées
B23D 55/00 - Machines à scier ou dispositifs de sciage à lames de scie à ruban, caractérisés uniquement par la structure d'organes particuliers
B27B 13/12 - Dispositifs de lubrification spécialement conçus pour les lames de scies à ruban
B27B 13/16 - Accessoires, p. ex. pour refroidir la lame
In a method for mounting a tool on a tool-mounting section of a machine tool, (1) a tool pod, which can be freely attached and detached in the axial direction with respect to the hollow section of a hollow shaft that pivotally links inner link plates and outer link plates of an endless chain, is withdrawn from the hollow section, (2) a tool, which is detachably provided on the tool pod, is withdrawn from the tool pod, (3) and the mounting part of the withdrawn tool is mounted on the tool-mounting section.
A horizontal band saw machine includes a pair of jaws, a pair of saw blade wheels, a band saw blade looped over the saw blade wheels, a pair of saw blade guides, a contact guide attached to the other of the pair of jaws, a coupling bracket connected to the other of the pair of saw blade guides to locate a distal end thereof below the other of the pair of saw blade wheels, and a follower member provided at the distal end of the coupling bracket. The contact guide and the coupling bracket are configured to move one of the pair of saw blade guides until the follower member contacts with the contact guide when the band saw blade is fed circularly in a state where the band saw blade is clamped by the one of the pair of saw blade guides.
B23D 55/08 - Machines à scier ou dispositifs de sciage à lames de scie à ruban, caractérisés uniquement par la structure d'organes particuliers des dispositifs de guidage ou d'avance des lames de scie à ruban
B23D 55/04 - Machines à scier ou dispositifs de sciage à lames de scie à ruban, caractérisés uniquement par la structure d'organes particuliers des dispositifs d'avance ou de serrage des pièces
B23D 53/04 - Machines à scier ou dispositifs de sciage à lames de scie à ruban se comportant, pendant l'emploi, comme un ruban sans fin, p. ex. pour découper selon des contours déterminés avec des roues pour supporter le ruban, montées de façon à pouvoir se déplacer ou pivoter, pour d'autres buts que le seul réglage
The present invention is a working machine in which: a forward/backward saddle 9 able to move in forward/backward directions is movably supported on both left and right sides thereof by left and right side walls 5L, 5R that are erected on a bed 3, and a forward/backward drive device 13 for moving the forward/backward saddle 9 in the forward/backward directions is provided to the left and right side walls 5L, 5R; a left/right saddle 25 able to move in left/right directions is provided to the forward/backward saddle 9, and a left/right drive device 45 for moving the left/right saddle 25 in the left/right directions is provided to the forward/backward saddle 9, on both the forward and backward sides of the left/right saddle 25; and an up/down slider 51 provided at a lower section with a processing head 62 having a processing tool 69 that is removable and replaceable is provided to the left/right saddle 25 so as to be able to move up and down, and an up/down drive device 57 for moving the up/down slider 51 up and down is provided to the left/right saddle 25 on both the left and right sides or both the forward and backward sides of the up/down slider 51. The working machine is provided with the left/right drive devices 13 arranged at different levels on both the forward and backward sides of the left/right saddle 25.
A horizontal band saw machine includes a base, a vertically-movable housing disposed above the base, a pair of wheels that are disposed at a lower portion of the housing and a distance between whose axis lines is changeable, a band saw blade lopped over the pair of wheels, and saw blade guides that are provided on the base. An installation position of the band saw blade is set lower than a cutting end position of a workpiece to be cut by the band saw blade. The housing can move the pair of wheels to the installation position. The pair of wheels can be inserted into an region surrounded by the band saw blade that is set on the saw blade guides when being moved to the installation position with the distance shortened.
B23D 53/04 - Machines à scier ou dispositifs de sciage à lames de scie à ruban se comportant, pendant l'emploi, comme un ruban sans fin, p. ex. pour découper selon des contours déterminés avec des roues pour supporter le ruban, montées de façon à pouvoir se déplacer ou pivoter, pour d'autres buts que le seul réglage
B23D 53/08 - Machines à scier ou dispositifs de sciage à lames de scie à ruban se comportant, pendant l'emploi, comme un ruban sans fin, p. ex. pour découper selon des contours déterminés pour couper des profilés
B23D 55/00 - Machines à scier ou dispositifs de sciage à lames de scie à ruban, caractérisés uniquement par la structure d'organes particuliers
B23D 55/08 - Machines à scier ou dispositifs de sciage à lames de scie à ruban, caractérisés uniquement par la structure d'organes particuliers des dispositifs de guidage ou d'avance des lames de scie à ruban
22.
VIBRATION-LIMITING METHOD AND VIBRATION-LIMITING DEVICE FOR BAND SAW BLADE OF BAND SAW
A vibration-limiting device for the band saw blade of a band saw, which cuts a workpiece by moving an endless band saw blade in the cutting direction while circling the band saw blade unidirectionally, the device being configured so that: nozzles (50) are disposed on the end of a cutting groove (Wa) of a workpiece (W) where the band saw blade enters the cutting groove, the cutting groove being formed by the band saw blade (100) during cutting; and a high pressure cutting oil (S) is sprayed toward both side surfaces of the body of the band saw blade.
B23D 55/08 - Machines à scier ou dispositifs de sciage à lames de scie à ruban, caractérisés uniquement par la structure d'organes particuliers des dispositifs de guidage ou d'avance des lames de scie à ruban
B23D 55/00 - Machines à scier ou dispositifs de sciage à lames de scie à ruban, caractérisés uniquement par la structure d'organes particuliers
B23Q 11/10 - Dispositions pour le refroidissement ou la lubrification des outils ou des pièces travaillées
B27B 13/00 - Machines à scier à ruban, ou à lame sans finOrganes ou équipement ad hoc
B27B 13/12 - Dispositifs de lubrification spécialement conçus pour les lames de scies à ruban
B27B 13/16 - Accessoires, p. ex. pour refroidir la lame
The present invention relates to a machine tool (A) being operated on the basis of a work program. In addition, the machine tool is provided with an editing means and holding means. The editing means is capable of editing the work program while the machine tool (A) is being operated on the basis of the work program, and the holding means temporarily holds the execution of the work program. When the editing means recognizes that the work program is being edited, the holding means holds the execution of the work program.
G05B 19/4155 - Commande numérique [CN], c.-à-d. machines fonctionnant automatiquement, en particulier machines-outils, p. ex. dans un milieu de fabrication industriel, afin d'effectuer un positionnement, un mouvement ou des actions coordonnées au moyen de données d'un programme sous forme numérique caractérisée par le déroulement du programme, c.-à-d. le déroulement d'un programme de pièce ou le déroulement d'une fonction machine, p. ex. choix d'un programme
B23Q 15/00 - Commande automatique ou régulation du mouvement d'avance, de la vitesse de coupe ou de la position tant de l'outil que de la pièce
Provided is a horizontal band saw configured so that the front side of a driver wheel and a driven wheel provided in a saw blade housing are open, wherein the saw blade housing structure is simplified and safety is improved. A horizontal band saw is provided with: a driver wheel (21) and a driven wheel (23) that are provided in a saw blade housing and that are opened in the front side; one protective wall (27) that seals at least the side of the driver wheel (21) and that is provided in a base frame (3); another protective wall (29) that seals at least the side of the driven wheel (23) and that is provided in the base frame (3); a door (31) that can seal the front side of the driver wheel (21) and that is provided on the one protective wall (27) so as to be able to open and close; a door (35) that can seal the front side of the driven wheel (23) and that is provided on the other protective wall (29) so as to be able to open and close; and a curtain (41) that prevents scattered chips and cutting oil from adhering to the inner face of the door (31) and that is provided between a saw blade housing (19) and the door (31).
B23D 55/02 - Machines à scier ou dispositifs de sciage à lames de scie à ruban, caractérisés uniquement par la structure d'organes particuliers des bâtisMachines à scier ou dispositifs de sciage à lames de scie à ruban, caractérisés uniquement par la structure d'organes particuliers des tables
B23D 55/00 - Machines à scier ou dispositifs de sciage à lames de scie à ruban, caractérisés uniquement par la structure d'organes particuliers
B23Q 11/08 - Protecteurs pour des parties des machines-outilsCapots antiprojections
A saw blade includes a group A (group A1 [=straight tooth+the odd number of set teeth]+group A2 [=straight tooth+the even number of set teeth]) and a group B (group B1 [=straight tooth+the odd number of set teeth having opposite set-bending sides to those in the group A1]+group B2 [=straight tooth+the even number of set teeth having opposite set-bending sides to those in the group A2]). Wide and narrow set teeth are arranged so that a max/min ratio of the number of pitches between the narrow set teeth having identical set-bending side and set width is 1.8 or less, and a max/min ratio of the number of pitches between the wide set teeth having identical set-bending side set width is 2.7 or less.
A band saw is includes a driving wheel and a driven wheel rotatably provided at a saw housing; an endless saw band made to run around the driving wheel and the driven wheel; and a plurality of saw band guiding devices for directing and guiding cutting edges of the saw band toward a direction of a workpiece to be cut. The saw band guiding devices are constructed to be movable in directions where one of the guiding devices gets closer to and away from another of the guiding devices, wherein each of the saw band guiding devices includes vibrating means for vibrating the saw band in a cutting direction relative to the workpiece. A pressure member holder including a plurality of pressure rollers or a pressure member for pressing a back surface of the saw band is provided in each of the saw band guiding devices.
B26D 7/08 - Moyens de traitement de la pièce ou de l'outil de coupe pour faciliter la coupe
B23D 55/08 - Machines à scier ou dispositifs de sciage à lames de scie à ruban, caractérisés uniquement par la structure d'organes particuliers des dispositifs de guidage ou d'avance des lames de scie à ruban
B26D 1/54 - Guides pour rubans ou éléments coupants analogues
A saw band guiding device is comprised of a fixed insert holder comprising a fixed insert guide at a tip end portion of the fixed insert holder, the fixed insert guide guiding one side surface of a saw band; and a movable insert holder comprising a movable insert guide at a tip end portion of the movable insert holder, the movable insert guide being opposed to the fixed insert guide and guiding another side surface of the saw band, the movable insert holder being rotatable relative to the fixed insert holder, wherein the movable insert holder is provided to be regulated in directions where the movable insert holder gets closer to and away from the fixed insert holder so as to regulate a saw band guiding surface of the fixed insert guide and a saw band guiding surface of the movable insert guide to be parallel with each other.
B23D 55/08 - Machines à scier ou dispositifs de sciage à lames de scie à ruban, caractérisés uniquement par la structure d'organes particuliers des dispositifs de guidage ou d'avance des lames de scie à ruban
A horizontal band saw machine for cutting a workpiece with an endless band saw blade, the horizontal band saw machine being provided with: a vise mechanism, which is provided on the downstream side of the cutting position and has a pair of jaws; a cutting head capable of perpendicular movement; a pair of saw blade wheels rotatably provided on the cutting head; a band saw blade looped over the pair of saw blade wheels; a saw blade guiding mechanism having a pair of saw blade guides suspended from the cutting head; a contact guide attached to one of the pair of jaws; a coupling bracket, which is coupled to one of the pair of saw blade guides so that the leading end is positioned below one of the pair of saw blade wheels; and a tracking member, which is provided on the leading end of the coupling bracket and slidably contacts the contact guide. The contact guide and the coupling bracket are configured so that if the band saw blade is fed circularly when the band saw blade is clamped by one of the pair of saw blade guides, the one saw blade guide of the pair of saw blade guides is moved until the tracking member contacts the contact guide.
B23D 55/08 - Machines à scier ou dispositifs de sciage à lames de scie à ruban, caractérisés uniquement par la structure d'organes particuliers des dispositifs de guidage ou d'avance des lames de scie à ruban
B23D 55/04 - Machines à scier ou dispositifs de sciage à lames de scie à ruban, caractérisés uniquement par la structure d'organes particuliers des dispositifs d'avance ou de serrage des pièces
A cutting machine is provided with: a saw blade for cutting a workpiece; and a chute provided below the cutting position at which the workpiece is cut by the saw blade and discharging an object to be discharged, which is originated from the workpiece, along a sloped surface. The chute has: a stationary member provided in the vicinity of the cutting position; and a pivotable flap provided on the opposite side of the stationary member from the cutting position. The stationary member has an upper surface which slopes downward at a first angle. The flap can pivot between a closed position at which the upper surface of the flap is substantially horizontal and an open position at which the upper surface slopes downward at a second angle (> first angle). A first mode which sets the flap to the open position at least when cutting is completed and a second mode which causes the flap to pivot from the closed position to the open position after the cutting is completed are selectively executed according to the length of the object to be discharged. The cutting machine can discharge in a short takt time, an object to be discharged, the discharge being performed without causing problems in the object to be discharged and in the saw blade.
B23D 55/04 - Machines à scier ou dispositifs de sciage à lames de scie à ruban, caractérisés uniquement par la structure d'organes particuliers des dispositifs d'avance ou de serrage des pièces
B23D 59/00 - Dispositifs annexes spécialement conçus pour les machines à scier ou les dispositifs de sciage
30.
HORIZONTAL BAND SAW MACHINE AND METHOD FOR INSTALLING BAND SAW BLADE
A horizontal band saw machine is provided with: a base; a vertically movable housing which is disposed above the base; a pair of wheels which is horizontally arranged at the lower part of the housing, the distance between the axes of the pair of wheels being changeable; an endless band saw blade which is wrapped around the pair of wheels; and saw blade guides which are provided on the upper surface of the base and on which the band saw blade is mounted during the installation of the band saw blade on the pair of wheels. An installation position, which is the position in height of the band saw blade which is mounted on the saw blade guides, is set below the end position of cutting of a workpiece by the band saw blade which is wrapped around the pair of wheels. The housing is configured so as to be capable of lowering the pair of wheels to the installation position. The pair of wheels is configured in such a manner that, when lowered to the installation position by the housing while the distance between the axes of the pair of wheels is reduced, the pair of wheels is capable of entering a region surrounded by the band saw blade mounted on the saw blade guides.
A saw blade comprising saw teeth having a hard tip at the tips thereof. The saw teeth include: first following teeth having first tips having a trapezoid shape whereby the tips thereof are wider in the thickness direction of the saw blade, and having a beveled section formed on both ends of a flat tip edge thereof; first leading teeth having second tips having a tip edge protruding from the tip edge of the first tips, having a flat tip edge width that is narrower than the width of the first tips, and having a teeth height that is higher than the teeth height of the first tips; second following teeth having third tips having an acute-angle corner section protruding in the width direction from one beveled section of the first tips and having the same teeth height as the teeth height of the first following teeth; and third following teeth having third tips having an acute-angle corner section protruding in the width direction from the other beveled section of the first tips and having the same teeth height as the teeth height of the first following teeth. A cut surface can be finished with greater precision as a result of this saw blade.
The tailstock is provided with: a center (15) for rotatably supporting an end face of a workpiece that is clamped on the main spindle of a working machine; a tailstock body (17) capable of moving along the axial center direction of the main spindle; a quill (25) provided on the tailstock body so as to be capable of moving along the axial center direction and having a center holder (29) for taper-mounting the center; an actuator (33), which is provided on the tailstock body and moves the quill along the axial center direction; and a push rod (49) extending inside the quill along the axial center direction. The push rod: (a) moves integrally with the quill along the axial center direction when moving the center, which is taper-mounted on the center holder, toward the main spindle; and (b) is moved toward the main spindle relative to the quill, by the quill being moved in the direction opposite to the main spindle, to push the base end face of the center toward the main spindle when removing the center from the center holder. With said tailstock, there is no need to provide a work space around the tailstock for the work of removing the center and space can be effectively used.
The workpiece carrying apparatus performs emplacement of a material workpiece on the main spindle of a working machine and movement of the product workpiece from the main spindle. The workpiece carrying apparatus is provided with: a support beam extending along the Z-axis direction, which is parallel to the axial center of the main spindle; a Z-axis slider mounted on the support beam; a vertical slider mounted on the Z-axis slider; a swinging arm connected to the front end of the vertical slider; and a first hand and a second hand provided on the swinging arm. By sliding the Z-axis slider in the Z-axis direction, the Z-axis slider, the vertical slider, the swinging arm, the first hand and the second hand are placed inside the cover of the working machine or taken out of the cover. Using said workpiece carrying apparatus, the emplacement and movement of workpieces can be performed appropriately and the working machine can be made smaller.
B23B 15/00 - Agencements de transport, de chargement, de réglage, de renversement, de serrage sur mandrins, ou de déchargement, des pièces à usiner, spécialement conçus pour les machines à tourner automatiques ou semi-automatiques
The combined working machine is equipped with: a base frame with an inclined surface; a first headstock mounted on the inclined surface; a first main spindle provided so as to be rotatable on the first headstock; a second headstock mounted on the inclined surface facing the first headstock; a second main spindle provided on the second headstock; a tool head mounted on the inclined surface on one side of the first headstock; a tool head body, which is provided on the tool head and has a tool attachment base where a cutting tool is attached; a grinding head mounted on the inclined surface on the other side of the first headstock; and a grinding head body, which is provided on the grinding head and supports a rotatable rotary shaft. A grinding wheel for performing grinding is exchangeably attached on the rotary shaft of the grinding head. With said combined working machine, cutting and grinding can be performed simultaneously.
The saw blade is provided with: Group A obtained, in order from the precedent cut side, from a Group A1 comprising a straight tooth and an odd number of set teeth and a group A2, which follows Group A1 and comprises a straight tooth and an even number of set teeth; and following Group A, Group B obtained, in order from the precedent cut side, from a Group B1 comprising a straight tooth and an odd number of set teeth with set-bending sides that are on the opposite side from the set teeth of Group A1 and a Group B2, which follows Group B1 and comprises a straight tooth and an even number of set teeth with set-bending sides that are on the opposite side from the set teeth of Group A2. Wide set teeth and narrow set teeth are disposed so that the ratio of the maximum to the minimum pitch between narrow set teeth of the same set-bending side and set width is 1.8 or less and the ratio of the maximum to the minimum pitch between wide set teeth of the same set-bending side and set width is 2.7 or less. With the saw blade, cutting noise can be reduced and wear of the set teeth can be made uniform.
This band saw guide apparatus is provided with: a fixed insert holder integrally provided with a fixed insert guide at the leading end, said fixed insert guide guiding one side of a band saw blade; and a moveable insert holder provided with a moveable insert guide at the leading end, said moveable insert guide facing the fixed insert guide and guiding the other side of the band saw blade, and said moveable insert holder being able to rotate with respect to the fixed insert holder. In order to adjust the saw blade guide surface of the fixed insert guide and the saw blade guide surface of the moveable insert guide so as to be parallel, the moveable insert holder is provided so as to be adjustable in the direction in which the moveable insert holder moves away from the fixed insert holder as the moveable insert holder approaches the fixed insert holder.
B23D 55/08 - Machines à scier ou dispositifs de sciage à lames de scie à ruban, caractérisés uniquement par la structure d'organes particuliers des dispositifs de guidage ou d'avance des lames de scie à ruban
A band saw machine is provided with a band saw blade and band saw blade guide devices. The band saw blade guide devices are configured so that, relative to one of the band saw blade guide devices, the other band saw blade guide device can move in the direction in which the other band saw blade guide device approaches and separates from the one of the band saw blade guide devices. The band saw blade guide devices are each provided with: a vibration application means for applying vibration to the band saw blade, the vibration acting in the direction in which the band saw blade cuts into a workpiece; and a pressing member holder provided with pressing rollers or pressing members for pressing the back surface of the band saw blade, the pressing member holder being provided and supported in a swingable manner at substantially the center of a swing arm, the swing arm being provided so as to be swingable in the direction in which the swing arm approaches and separates from the back surface of the band saw blade.
B23D 55/08 - Machines à scier ou dispositifs de sciage à lames de scie à ruban, caractérisés uniquement par la structure d'organes particuliers des dispositifs de guidage ou d'avance des lames de scie à ruban
B26D 1/54 - Guides pour rubans ou éléments coupants analogues
The band saw machine is provided with: a base that supports the workpiece; a pair of columns erected on the base and separated in the Y-direction, which is orthogonal to the X-direction; a saw blade housing equipped with a beam section, which is provided to span between the pair of columns and be movable in the vertical direction and which extends in the Y-direction, and respective wheel support sections that are integrated with the two ends of the beam section and are formed so as to protrude downward; saw blade wheels that are each provided on the tips of the pair of wheel support sections in the saw blade housing so as to be rotatable around shaft centers parallel to the direction of movement of the saw blade housing and that turn and support the band saw blade; and a pair of saw blade guides that are provided on the beam section in the saw blade housing on the column side and separated in the Y-direction and that guide and support the band saw blade in the cutting direction without twisting the portion of the band saw blade that is near the columns when the tooth points of the band saw blade are facing downward.
B23D 53/04 - Machines à scier ou dispositifs de sciage à lames de scie à ruban se comportant, pendant l'emploi, comme un ruban sans fin, p. ex. pour découper selon des contours déterminés avec des roues pour supporter le ruban, montées de façon à pouvoir se déplacer ou pivoter, pour d'autres buts que le seul réglage
B23D 55/08 - Machines à scier ou dispositifs de sciage à lames de scie à ruban, caractérisés uniquement par la structure d'organes particuliers des dispositifs de guidage ou d'avance des lames de scie à ruban
39.
BAND SAWING MACHINE AND METHOD FOR CONTROLLING BAND SAWING MACHINE
A feed vise (11) positions a work material (W) on a pass line. A band saw blade (32) has no twist, and cuts the work material (W) at a length less than the diameter of a drive wheel (31a). A product carry-out vise (21) has a product carry-out vise jaw (21j). The work material (W) is cut by clamping the work material (W) by the product carry-out vise jaw (21j) and lowering the band saw blade (32). After the completion of the cutting, the product carry-out vise (21) lowers while clamping a product (P) obtained by cutting the work material (W) and carries out the product (P) below the pass line.
B23D 55/04 - Machines à scier ou dispositifs de sciage à lames de scie à ruban, caractérisés uniquement par la structure d'organes particuliers des dispositifs d'avance ou de serrage des pièces
B23D 53/04 - Machines à scier ou dispositifs de sciage à lames de scie à ruban se comportant, pendant l'emploi, comme un ruban sans fin, p. ex. pour découper selon des contours déterminés avec des roues pour supporter le ruban, montées de façon à pouvoir se déplacer ou pivoter, pour d'autres buts que le seul réglage
40.
Method for manufacturing bandsaw blade, and bandsaw blade
A method for manufacturing a bandsaw blade provided at the top of the teeth with cutting tips made of a hard material, includes the steps of: offsetting to the left and right saw teeth constituting left and right offset teeth; forming the saw teeth constituting the left and right offset teeth to a smaller tooth height than that of the saw teeth constituting straight teeth; and grinding cutting tips provided to the top of the left and right offset teeth subsequent to the offsetting step, and machining the edge lines at the top of the left and right offset teeth so that the lines are orthogonal to the travel direction of a bandsaw blade and the cutting direction of the bandsaw blade.
In the process of holding a non-toothed section of a band saw blade between a fixed insertion block and a movable insertion block included in a band saw blade guide device, the movable insertion block is moved while a return allowing unit included in an insertion block moving unit is held in a returnable state, the insertion block moving unit configured to move the movable insertion block toward the fixed insertion block. The band saw blade is firmly held between the fixed insertion block and the movable insertion block. Thereafter, the entirety of the insertion block moving unit, including the return allowing unit, is fixed in an immovable state by a mechanical fixing unit.
B23D 55/08 - Machines à scier ou dispositifs de sciage à lames de scie à ruban, caractérisés uniquement par la structure d'organes particuliers des dispositifs de guidage ou d'avance des lames de scie à ruban
Disclosed is a main body vise device (7) in a band saw machine, characterized in that: a movable main body vise body (33) is provided to a main body vise bed (31); an upstream movable vise jaw (37) is provided integrally to this main body vise body (33), while a downstream movable vise jaw (41) is movably provided on a downstream side of the main body vise body (33); a first pressing/biasing module (43) capable of advancing and retreating the main body vise body (33) is provided; and a second pressing/biasing module (45) capable of advancing and retreating the downstream movable vise jaw (41) independently of the upstream movable vise jaw (37) is provided.
B26D 7/02 - Moyens pour maintenir ou mettre en position la pièce comportant des moyens de serrage
B26D 7/04 - Moyens pour maintenir ou mettre en position la pièce comportant des moyens de serrage permettant le réglage de la pression de serrage
B23D 55/04 - Machines à scier ou dispositifs de sciage à lames de scie à ruban, caractérisés uniquement par la structure d'organes particuliers des dispositifs d'avance ou de serrage des pièces
43.
METHOD FOR MANUFACTURING BANDSAW BLADE, AND BANDSAW BLADE
A method for manufacturing a bandsaw blade provided at the top of the teeth with cutting tips comprising a hard material. The method comprises the steps of: offsetting to the left and right saw teeth constituting left and right offset teeth (7, 9); forming the saw teeth constituting the left and right offset teeth (7, 9) to a smaller tooth height than that of the saw teeth constituting straight teeth (5); and whetting cutting tips (13, 15) provided to the top of the left and right offset teeth (7, 9) subsequent to the offsetting step, and machining the edge lines (13A, 15A) at the top of the left and right offset teeth (7, 9) so that the lines are orthogonal to the travel direction (A) of a bandsaw blade (1) and the cutting direction (B) of the bandsaw blade.
Disclosed is a method for supplying round bar material to a cutting machine (1), said method being provided with a material feed means (5), a material furnishing means (9) for furnishing material (W) to the material feed means, a round bar side surface level adjusting means (10) for positioning the material in the Y-axis direction when the material is to be received from the material furnishing means, and a round bar bottom surface level adjusting means (12) for adjusting the material height in the Z-axis direction. This method for supplying round bar material with the bottom surface level kept constant is characterized in that at the same time as, or after, the round bar material is furnished in such a way that the end face level of the round bar material agrees with a main body vise reference line (BL) of the cutting machine, the round bar bottom surface level adjusting means adjusts the height of the round bar material on the basis of the location positioned by the side surface level adjusting means, so that the bottom surface level of the round bar material will be uniquely constant; and that thereby the bottom surface level of the round bar material at the time when the material feed means feeds the material to the cutting machine becomes constant.
B23D 47/04 - Machines à scier ou dispositifs de sciage travaillant au moyen de lames circulaires, caractérisés uniquement par la structure d'organes particuliers des dispositifs d'alimentation, de mise en place, de serrage ou de rotation de la pièce
B23D 55/04 - Machines à scier ou dispositifs de sciage à lames de scie à ruban, caractérisés uniquement par la structure d'organes particuliers des dispositifs d'avance ou de serrage des pièces
A band saw blade includes multiple saw teeth having a straight tooth and right and left set teeth, and also includes a gullet portion provided between the saw teeth. A rake surface of each of the saw teeth is provided with a chip curler portion formed into an arc shape at an entire range of approximately 90° to form a chip generated at the time of cutting a work into a small rolled shape before the chip comes into contact with a bottom portion of the gullet portion. A chip non-contact surface to be kept out of contact with the chip is formed to have either a flat surface or a convex surface between the chip curler portion and the bottom portion of the gullet portion, and a dent portion is formed between the chip non-contact surface and the gullet bottom portion, the dent portion recessed from the chip non-contact surface in an opposite direction to a moving direction of the band saw blade in order to increase a radius of a concave curved surface constituting a back side of the gullet bottom portion. A flat portion for dispersing stress concentration is provided at an innermost portion of the gullet portion.
When the fixed block and the movable block which are provided to a band saw blade guide device hold the non-toothed section of a band saw blade (5), the movable insertion block (15) moves in such a way that a return allowing means (33) included in an insertion block moving means (21) for moving the movable insertion block (15) toward the fixed insertion block (9), is held in a returnable state. Thereby the fixed insertion block (9) and the movable insertion block (15) firmly hold the band saw blade (5). Subsequently, a mechanical fixing means (45) immovably fixes the whole of the insertion block moving means (21) including the return allowing means (33). In this fixed state, a return allowing operation of the return allowing means (33) keeps the gap between the fixed insertion block (9) and the movable insertion block (15) at an appropriate value corresponding to the thickness of the band saw blade (5).
B23D 55/08 - Machines à scier ou dispositifs de sciage à lames de scie à ruban, caractérisés uniquement par la structure d'organes particuliers des dispositifs de guidage ou d'avance des lames de scie à ruban
Disclosed is a main body vise device (7) in a band saw machine, the aforementioned main body vise device (7) characterized in that a freely movable main body vise body (33) is provided to a main body vise head (31), an upstream moving vise jaw (37) is integrally provided to this main body vise body (33), a downstream moving vise jaw (41) is provided to the downstream side in a freely movable manner, a first pressing pressure application means (43) for permitting the main body vise body (33) to advance and retract is provided, and a second pressing pressure application means (45) for permitting the downstream moving vise jaw (41) to advance and retract independently of the upstream moving vise jaw (37) is provided.
B23D 55/04 - Machines à scier ou dispositifs de sciage à lames de scie à ruban, caractérisés uniquement par la structure d'organes particuliers des dispositifs d'avance ou de serrage des pièces
A band saw blade provided with left and right set teeth which are set to the left and right of the band saw blade relative the running direction thereof and also with straight teeth which are not set. The ridge line (9) of the tips of the set teeth (3, 5) and the straight teeth (7) is formed in a protruding curved line in which the center part of the saw teeth (3, 5, 7) in the thickness direction thereof protrudes most. When viewed in the running direction of the band saw blade (1), the ridge line (9) of the tips of the set teeth (3, 5) and the straight teeth (7) is continuous, the difference in height between portions of the ridge line (9) of the saw teeth (3, 5, 7) is within the range of 0.02 mm - 0.1 mm, and the difference in height between the ridge line at the center part of the straight teeth (7) in the thickness direction and the inner corners (3B, 5A) of the left and right set teeth (3, 5) is within the range of 0 mm - 0.03 mm.
A saw blade. When the rake angle of the teeth in the saw blade is θ, the tooth angle is β, and the clearance angle is α, the rake angle θ is 17°≤θ≤40°, the tooth angle β is 35°C≤β≤58°, and the clearance angle α is at least 15°. The sum of the rake angle θ, the tooth angle β and the clearance angle α is 90°. The radius r of an arc-shaped tip collar (7) that contacts the rake surface (5) of the teeth is 10%±4% of the tooth pitch or the average tooth pitch of the saw blade. The fan angle φ of the tip collar (7) is 85°±20°. The dimension h from the intersection (11) of a gullet forming surface (3), which extends from the bottom of the teeth, and the tip collar (7) to the tip of the teeth is (2r × 1.1) ± 0.2(2r × 1.1).
A band saw blade provided with saw teeth composed of straight teeth (5) and left and right set teeth (7A, 7B, 9A, 9B), and also with gullets (11) located between each saw tooth. In order that chips occurring in cutting a workpiece are curled in a small size before the chips make contact with respective bottoms (15) of the gullets (11), each tooth is provided with a chip curler (17) on a rake surface (13) thereof, and the chip curler (17) has a circular arc shape in a range of substantially 90 degrees. A contactless surface (19) which is kept without contact with the chips and has a flat surface or a projecting curved surface is formed between the chip curler (17) and the bottom (15) of the gullet (11). In order to increase the radius (R) of a recessed curved surface which forms the rear side of the bottom (15) of the gullet, a recess (21) which is recessed from the contactless surface (19) to the direction opposite the direction in which the band saw blade advances is provided between the contactless surface (19) and the bottom (15) of the gullet. A flat surface section for dispersing concentrated stress is provided at the deepest section of the gullet (11).
Band saws for metal working; parts and accessories for band
saws for metal working, including blades for band saws,
control devices for band saws, and devices for loading and
unloading materials into band saws.
[ Band saws for metal working; ] machine parts, namely, band saw blades for metal working [ ; loading and unloading machines for loading and unloading materials into band saws ]
Band saws for metal working; parts and accessories for band
saws for metal working, including blades for band saws,
control devices for band saws, and devices for loading and
unloading materials into band saws.
Band saws for metal working; parts and accessories for band
saws for metal working, including blades for band saws,
control devices for band saws, and devices for loading and
unloading materials into band saws.
[ Band saws for metal working; ] machine parts, namely, band saw blades for metal working [; loading and unloading machines for loading and unloading materials into band saws ]
[ Band saws for metal working; ] machine parts, namely, band saw blades for metal working [; devices for loading and unloading materials into band saws ]
Band saws for metal working; parts and accessories for band
saws for metal working, including blades for band saws,
control devices for band saws, and devices for loading and
unloading materials into band saws.
[ Band saws for metal working; ] machine parts, namely, band saw blades for metal working [ loading and unloading machines for loading and unloading materials into band saws ]
