An automatic turn-over mechanism and turn-over method for sandbag transfer, the automatic turn-over mechanism comprising a frame, a transfer track and a holding member, wherein the transfer track is provided with a sliding guide groove inside each linear slideway; and the holding member is composed of a pair of turn-over components for holding a sandbag, each turn-over component being provided with a cylindrical turn-over shaft that protrudes from the center of the outer side, the turn-over shaft being provided with a guide protrusion on the outer end face, and the guide protrusion and the center of the turn-over shaft having a gap therebetween. The automatic turn-over mechanism is further provided with a pair of linear motion components, each linear motion component being provided with a through hole matching the turn-over shaft, and being in sliding fit with the linear slideway. The linear motion component is sleeved on the turn-over shaft, and the guide protrusion is slidably connected to the sliding guide groove, the sliding guide groove being provided with horizontal linear sections and smooth curved sections; thus, by setting the shape of the sliding guide groove, the height position of the guide protrusion is changed, causing a sandbag to rotate, thereby changing the orientation of the sandbag to realize turning-over. The present mechanism eliminates the need for the use of an electric motor or a robot, and allows for automatic turning-over of sandbags during transfer.
B65G 47/248 - Dispositifs pour influencer la position relative ou l'orientation des objets pendant le transport par transporteurs présentant les objets selon un orientement donné en les retournant ou en les intervertissant
B65G 47/90 - Dispositifs pour saisir et déposer les articles ou les matériaux
A test bar forming mold, comprising a pouring base (20a, 20b) and a forming base (10). The pouring base is internally provided with an accommodating recess (111, 211) and a pouring gate (113, 221) communicated with the accommodating recess. The forming base is arranged in the accommodating recess; the forming base consists of a plurality of core members (101) located on the same circumference; every two adjacent core members match to form a cavity (102) communicated with the pouring gate; and the plurality of cavities are located on a circumference with the pouring gate as the center. The forming mold can reduce the difference among a plurality of test bars formed by one pouring.
The present invention relates to the technical field of core making machines, and provides a small-batch multi-variety core making machine and a core making system. The small-batch multi-variety core making machine comprises a frame, a lifting/lowering workbench, a mold assembly, a sand shooting assembly, and a curing assembly; the lifting/lowering workbench is arranged at the bottom of the frame, and the mold assembly is arranged on the lifting/lowering workbench; a sand shooting member of the sand shooting assembly is arranged at the top of the frame, a sand shooting head of the sand shooting assembly is arranged at the bottom of the sand shooting member, and the sand shooting head is located below the frame; an air blowing cover of the curing assembly is slidably arranged below the frame, and the air blowing cover is lower than the sand shooting head. The core making system comprises a robot, a sand mixer, a core taking workbench, a mold assembling workbench and the small-batch multi-variety core making machine; the sand mixer, the core taking workbench, the mold assembling workbench and the small-batch multi-variety core making machine are arranged around the robot. The technical effect of reducing working costs is achieved.
B22C 15/24 - Serrage par pression de gaz ou par dépression impliquant des dispositifs de soufflage dans lesquels le matériau de moulage arrive sous forme de particules libres
B22C 19/00 - Composants ou accessoires des machines à mouler pour faire des moules ou des noyaux
The present disclosure relates to the technical field of core making. Provided is a compact desktop core-making machine. The compact desktop core-making and testing machine comprises a desktop machine shell, a core-making unit, an air heater and a catalyst quantitative filling mechanism, wherein a main chamber and an auxiliary chamber, which are in communication with each other, are provided in the desktop machine shell, the core-making unit is arranged in the main chamber, the air heater is arranged in the auxiliary chamber, and the catalyst quantitative filling mechanism is arranged on the front side of the air heater. Compared with the prior art, the air heater, the core-making unit and the catalyst quantitative filling mechanism in the present disclosure are compactly arranged in the desktop machine shell, compact installation of each component is achieved, the overall layout is rational and compact, and the compact desktop core-making and testing machine can be placed on a desktop for use. In addition, all the components are integrated and mounted in the desktop machine shell, and all parameters can be collected quite conveniently. Moreover, a catalyst can be quantitatively conveyed to the core-making unit by providing the catalyst quantitative filling mechanism, thereby guaranteeing the consistency of the quality of samples.
G01N 1/28 - Préparation d'échantillons pour l'analyse
G01N 1/44 - Traitement d'échantillons mettant en œuvre un rayonnement, p. ex. de la chaleur
B22C 15/24 - Serrage par pression de gaz ou par dépression impliquant des dispositifs de soufflage dans lesquels le matériau de moulage arrive sous forme de particules libres
B22C 19/00 - Composants ou accessoires des machines à mouler pour faire des moules ou des noyaux
A pouring device for sand casting, comprising a base (110), a pouring rail vehicle (130), a driving assembly (150), a range detector (170), and a control box (190). The base (110) is provided with guide rails (111), the pouring rail vehicle (130) is arranged on the guide rails (111), and the pouring rail vehicle (130) can move along the guide rails (111); the driving assembly (150) is arranged on the pouring rail vehicle (130); the range detector (170) is arranged on the pouring rail vehicle (130); and the control box (190) is arranged on the base (110) and is communicationally connected to both the driving assembly (150) and the range detector (170).
An integrated sand shooting exhaust valve, comprising a valve housing (1), wherein a three-cavity structure is formed by an air storage cavity (4), a sand shooting cavity (2) and an exhaust cavity (3) in the valve housing (1), a plurality of air inlet holes (5) are formed between the air storage cavity (4) and the sand shooting cavity (2), an air inlet mechanism is arranged around the valve housing (1) corresponding to each air inlet hole (5), a plurality of exhaust holes (8) are formed between the sand shooting cavity (2) and the exhaust cavity (3), an exhaust mechanism is arranged at an upper part of the valve housing (1) corresponding to each exhaust hole (8), a flow guide cover (10) is arranged in the sand shooting cavity (2), a through hole (11) for being in communication with a sand shooting cylinder is provided in a position of the valve housing (1) at the bottom of the flow guide cover (10), and a screen (12) is arranged on the through hole (11).
F16K 11/10 - Soupapes ou clapets à voies multiples, p. ex. clapets mélangeursRaccords de tuyauteries comportant de tels clapets ou soupapesAménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont plusieurs éléments de fermeture ne se déplacent pas comme un tout
F16K 47/02 - Moyens incorporés aux soupapes pour absorber l'énergie d'un fluide pour empêcher les coups de bélier ou le bruit
B22C 15/23 - Serrage par pression de gaz ou par dépression
A novel core making system (100), comprising a sand mixing device (110), a core making device (130), a movable sealed cylinder (150), and an automatic dumping device (170). The bottom of the sand mixing device is provided with a mixed sand outlet; the core making device and the sand mixing device are arranged in a split mode on a same mounting surface, and the top of the core making device is provided with a core sand receiving hopper (131); the movable sealed cylinder is movably arranged between the sand mixing device and the core making device; the automatic dumping device is arranged on one side of the core making device. According to the core making system, an integrated stacked structure is not required, so that the arrangement requirements of the whole core making unit in the height direction can be reduced; additionally, the independent movable sealed cylinder is used for conveying core sand, so that the tidiness of the operation environment on site can be guaranteed; and the split structure is also easy to maintain.
B22C 5/04 - Machines ou dispositifs spécialement conçus pour la préparation ou la manutention des matériaux à mouler, dans la mesure où ils sont spécialement adaptés à cette fin par broyage, mélange, malaxage, agitation
B22C 13/12 - Machines à mouler pour faire des moules ou noyaux de forme particulière pour noyaux
B22C 5/16 - Équipement pour le stockage ou la manutention de matériau de moulage après préparation, incorporé dans l'installation générale de préparation de ce matériau avec convoyeurs ou autre équipement pour l'approvisionnement en matériau
B22D 33/02 - Équipement pour la manutention des moules pour tourner ou déplacer les moules
A horizontal sand core subtractive machining apparatus (100), comprising a machine tool base (110), a bottom column (120), a stand column (130), a main spindle box (140), a machining device (150) and a workbench (160), wherein the bottom column can move in a first direction relative to the machine tool base; the stand column can move in a second direction relative to the bottom column; the main spindle box can move in a third direction relative to the stand column; the machining device is arranged on the main spindle box; and the workbench is movably arranged in a transfer area of the machine tool base, is configured to fix a workpiece to be machined, and can move relative to the machine tool base so as to approach to or move away from a machining area. In the horizontal sand core subtractive machining apparatus, a large sand mold can be mounted and fixed by means of the workbench; and the machining device can be adjusted in three directions and thus has excellent flexibility, and can machine multiple surfaces of the sand mold in a single instance of clamping, thereby greatly improving the machining efficiency.
A hydraulic motor (600) control system of a core box trolley, and a core box trolley. The hydraulic motor (600) control system of a core box trolley comprises an oil tank (100), a power unit (200), a proportional valve (300), a balance valve, an overflow valve and a hydraulic motor (600), wherein an oil inlet of the power unit (200) is connected to the oil tank (100), a working oil port of the power unit (200) is connected to an oil inlet of the proportional valve (300) by means of an oil intake pipeline, a working oil port of the proportional valve (300) is connected to an oil inlet of the balance valve, a working oil port of the balance valve is connected to the hydraulic motor (600) by means of an oil supply pipeline, an oil inlet of the overflow valve is connected to the oil supply pipeline, an overflow port of the overflow valve is connected to the oil tank (100) by means of an oil drain pipeline, and an oil return port of the proportional valve is connected to the oil tank (100) by means of an oil return pipeline. The core box trolley comprises the hydraulic motor (600) control system of a core box trolley.
F15B 11/16 - Systèmes de servomoteurs dépourvus d'asservissement avec plusieurs servomoteurs
F15B 11/04 - Systèmes comportant essentiellement des moyens particuliers pour commander la vitesse ou la puissance d'un organe de sortie pour commander la vitesse
F15B 13/06 - Dispositifs de distribution ou d'alimentation du fluide caractérisés par leur adaptation à la commande de servomoteurs pour utilisation avec plusieurs servomoteurs
The present disclosure relates to the technical field of sample core making machines and provides a multi-process sample core making machine. The multi-process sample core making machine comprises a rack, a sand ejecting assembly, an air heating member, an air blowing assembly, a clamping assembly and core boxes; the air heating member is arranged at the top of the rack; the sand ejecting assembly is arranged in the rack; the air blowing assembly is movably arranged in the rack; an air inlet of the air blowing assembly is connected to an air outlet of the air heating member; the air blowing assembly is located below the sand ejecting assembly; the clamping assembly having a heating function is arranged in the rack, and the clamping assembly is located below the air blowing assembly, two clamping members of the clamping assembly being capable of horizontally moving relative to the rack; a left and a right core box of the core boxes are respectively arranged on the two clamping members, so that the two clamping members drive the left and the right core box of the core boxes to be closed or opened. The present disclosure achieves the technical effect of reducing the weight of the core boxes.
B22C 15/24 - Serrage par pression de gaz ou par dépression impliquant des dispositifs de soufflage dans lesquels le matériau de moulage arrive sous forme de particules libres
G01N 1/28 - Préparation d'échantillons pour l'analyse
B22C 15/23 - Serrage par pression de gaz ou par dépression
A sand mixer, comprising a sand mixing cylinder (100), a sand mixing power member (200), a sand aeration member (300) and a sand mixing member (400), wherein the sand mixing power member is arranged at the top of the sand mixing cylinder; a power end of the sand mixing power member is connected to a first transmission member (110), and the end of the first transmission member that extends into the sand mixing cylinder is in transmission connection with a linkage member (500); steering gears (114) and second transmission members (510) are arranged on the linkage member; the steering gears are in transmission connection with the first transmission member; the second transmission members are in transmission connection with the steering gears; the sand aeration member and the sand mixing member are both arranged on the linkage member and can rotate; and third transmission members (600) in transmission connection with the second transmission members are arranged on the sand aeration member and the sand mixing member. A core making apparatus comprises the sand mixer. The sand mixer has the technical effect of mixing sand uniformly.
B22C 5/04 - Machines ou dispositifs spécialement conçus pour la préparation ou la manutention des matériaux à mouler, dans la mesure où ils sont spécialement adaptés à cette fin par broyage, mélange, malaxage, agitation
B22C 13/12 - Machines à mouler pour faire des moules ou noyaux de forme particulière pour noyaux
Provided in the present application is a large sand shooting nozzle. The large sand shooting nozzle comprises a nozzle body and a nozzle head serving as a vulnerable replacement part, wherein one end of the nozzle head is connected into an open end of the nozzle body in a sleeving manner, the other end of the nozzle head is provided with a sand blocking straight section, nozzle blocking sheet ribs are arranged in the sand blocking straight section, the nozzle blocking sheet ribs are fully distributed in the sand blocking straight section in a net-shaped structure, and a plurality of meshes formed between the nozzle blocking sheet ribs serve as nozzle holes.
B22C 15/24 - Serrage par pression de gaz ou par dépression impliquant des dispositifs de soufflage dans lesquels le matériau de moulage arrive sous forme de particules libres
13.
REACTION DEVICE FOR WATER REPLENISHING AND REUSING OF INORGANIC CORE SAND AND REUSING METHOD
Provided are a reaction device for water replenishing and reusing of inorganic core sand and a reusing method. The reaction device comprises a reaction barrel (1), a water adding device (3), a heating device and a driving device (2), wherein the heating device is arranged at the bottom of the reaction barrel (1); the water adding device (3) supplies water to the interior of the reaction barrel (1); and the driving device (2) is configured to drive the reaction barrel (1) to rotate. The reusing method is carried out by using the reaction device for water replenishing and reusing of inorganic core sand.
B22C 5/04 - Machines ou dispositifs spécialement conçus pour la préparation ou la manutention des matériaux à mouler, dans la mesure où ils sont spécialement adaptés à cette fin par broyage, mélange, malaxage, agitation
B22C 5/00 - Machines ou dispositifs spécialement conçus pour la préparation ou la manutention des matériaux à mouler, dans la mesure où ils sont spécialement adaptés à cette fin
14.
AIR BLOWING MECHANISM OF CORE SHOOTING MACHINE AND CORE SHOOTING MACHINE
An air blowing mechanism (100) of a core shooting machine and a core shooting machine (200). The air blowing mechanism (100) of a core shooting machine comprises an air heater (110), a catalyst quantitative adding machine (120), an air blowing hood (130) and a mounting frame (140). The mounting frame (140) is arranged at the top of a core making station (101); the air blowing hood (130) is movably mounted at the bottom of the mounting frame (140); the air heater (110) is arranged on the mounting frame (140) and is provided with an air blowing pipe (111); the air blowing pipe (111) selectively communicates with the air blowing hood (130); the catalyst quantitative adding machine (120) and the air heater (110) are separately arranged.
B22C 15/24 - Serrage par pression de gaz ou par dépression impliquant des dispositifs de soufflage dans lesquels le matériau de moulage arrive sous forme de particules libres
B22C 19/00 - Composants ou accessoires des machines à mouler pour faire des moules ou des noyaux
A compact core shooting machine (100), comprising a base (110), columns (120), an upper frame (130), a core shooting mechanism (140), a lifting workbench (150) and a core box transfer trolley (160). The columns (120) are disposed on the base (110); the lifting workbench (150) is disposed in a working cavity (111) and is capable of lifting or lowering relative to the columns (120); the core box transfer trolley (160) is disposed on the lifting workbench (150), and the core box transfer trolley (160) is capable of moving on the lifting workbench (150) and is partially suspended and extends out of the lifting workbench (150), so that a core box tool (101) is conveyed out of the working cavity (111). The core box transfer trolley (160) is used to achieve a conveying action of the core box tool (101). The core box transfer trolley (160) is provided with a core ejection mechanism (163) to achieve an ejection action on a core box sand core.
B22C 15/24 - Serrage par pression de gaz ou par dépression impliquant des dispositifs de soufflage dans lesquels le matériau de moulage arrive sous forme de particules libres
B22C 19/00 - Composants ou accessoires des machines à mouler pour faire des moules ou des noyaux
A method for locking outer shape sand cores, the method being designed to lock outer shape sand cores comprising a first outer shape core and a second outer shape core, the first outer shape core and the second outer shape core being positioned to mate with each other by means of a plurality of mortise and tenon structures. The method comprises: mating the second outer shape core and the first outer shape core to form a sand pack; using a plurality of pressing mechanisms to press the first outer shape core and the second outer shape core; and using a nail gun to nail at the mortise and tenon structures in a direction perpendicular to the mating direction of the first outer shape core and the second outer shape core, such that the nails pass through the mortise and tenon structures of the first outer shape core and the second outer shape core.
A V-method vertical molding process and a production line therefor. The V-method vertical molding process comprises: respectively attaching a film to a surface of a left mold (201) and a surface of a right mold (202) simultaneously; placing a sand box (300) between the left mold (201) and the right mold (202), and respectively moving the left mold (201) and the right mold (202) coated with the films until both respectively abut against the sand box (300) and form a closed molding chamber; making molding sand flow into and fully fill the molding chamber via a sand addition port (301) provided in the sand box (300) and under the action of gravity, and applying positive and negative pressure pulses to the interior of the molding chamber to compact the molding sand in the molding chamber; once the molding sand in the molding chamber is compacted, sealing the sand addition port (301) and the molding chamber maintaining a negative pressure environment therein; and respectively separating the left mold (201) and the right mold (202) from the sand box (300) to form a molding cavity, and carrying out casting in the molding cavity to obtain a cast.
Automatic vibratory stress relieving machines for metal
working; casting machines; foundry machines; molds [parts of
machines]; hot chamber die casting machines; die-casting
moulds; inert gas generators [machines]; mixing machines.
19.
LOW-PRESSURE MOLD FILLING GRAVITY FEEDING DEVICE AND METHOD
A low-pressure mold filling gravity feeding device, comprising a low-pressure furnace body (1) storing pouring liquid, a mold (2) having a cavity (21), and a control system (9). Ingates (22) are provided at the bottom or side surface of the cavity (21); the ingates (22) are communicated with a runner (23); an inlet of the runner (23) is communicated with an outlet opening of a riser pipe (3); an inlet opening of the riser pipe (3) extends into the pouring liquid of a low-pressure furnace (1) to allow the pouring liquid to be poured into the cavity (21) by means of the riser pipe (3), the runner (23), and the ingates (22) in sequence under the pressure in the low-pressure furnace (1); risers (24) are provided on the upper part of the cavity (21); liquid level detectors (5) are provided in the risers (24); a liquid level detection device (6) is provided above the riser pipe (3); a pouring stop gate (7) is provided between the inlet of the runner (23) and the outlet of the riser pipe (3); the pouring stop gate (7) is connected to a pouring stop cylinder (8); the liquid level detectors (5), the liquid level detection device (6), and the pouring stop cylinder (8) are electrically connected to the control system (9). Also provided is a low-pressure mold filling gravity feeding method using the apparatus. By using the apparatus, a pressure holding process is canceled, and no backpressure will be produced even if the cavity is not filled completely, thereby improving production efficiency.
A micro-solid-state molding method, comprising the steps of: 1) using pressure to make the totality of a molten metal flow from within a holding furnace to a mold cavity by means of an intermediate pipeline; 2) controlling the pipe wall temperature of the intermediate pipeline on the intermediate pipeline, wherein the temperature of first molten metal of the totality of the molten metal distributed in a central part of the intermediate pipeline is higher than the liquidus temperature thereof, and the temperature of second molten metal of the totality of the molten metal distributed in a pipe wall part of the intermediate pipeline is lower than the liquidus temperature thereof; 3) arranging a stirring apparatus around the intermediate pipeline, so that grown solidified dendrites are broken, refined and dispersed in the totality of the molten metal to become nucleation cores when the totality of the molten metal is solidified; and 4) continuing to apply pressure to the totality of the molten metal in a micro-solid state, so that the totality of the molten metal flows into the mold cavity, and once a pouring process is complete, removing castings to prepare for the next mold pouring. And a micro-solid-state molding apparatus. By means of applying the molding process in the molding apparatus, the amount of nucleation cores in the molten metal is increased, gas content is reduced while ensuring good fluidity, and crystal grains are refined.
A core-making method for a large sand core: providing a sand blowing mechanism, the bottom end of the sand blowing mechanism being matched with each inlet at the top of a core box (10) and the top end thereof being matched with the bottom end of a sand injection mechanism; the sand blowing mechanism has a sand blowing position moving between the sand injection mechanism and the core box and a degree of freedom to move out from said position, and has a lateral sand entry structure; moving the sand injection mechanism upward, moving the sand blowing mechanism into the sand blowing position, and then moving the sand injection mechanism downward to press the sand blowing mechanism; adding sand into the sand blowing mechanism and blowing air such that moulding sand enters the core box, the sand blowing pressure being 0.1MPa-0.2MPa and the sand blowing amount being 80-90% of the mass of the sand core; moving the sand injection mechanism upward, moving the sand blowing mechanism out of the sand blowing position, and then moving the sand injection mechanism downward and pressing the core box; injecting the residual moulding sand into the core box by means of the sand injection mechanism and simultaneously implementing compaction of the sand core, the sand injection pressure being 0.4MPa-0.5MPa; and air blowing and curing the sand core to complete the core making. A core-making apparatus comprising a sand blowing mechanism and a sand injection mechanism. The present method and apparatus implement core-making of a large sand core.
B22C 15/24 - Serrage par pression de gaz ou par dépression impliquant des dispositifs de soufflage dans lesquels le matériau de moulage arrive sous forme de particules libres
B22C 19/00 - Composants ou accessoires des machines à mouler pour faire des moules ou des noyaux
A moisturizing apparatus. The moisturizing apparatus comprises a box body (1) and a moisturizing assembly (2); a first opening (11) is formed in one side plate of the box body (1); the moisturizing assembly (2) comprises at least two rotating shafts (21) and a moisturizing belt (22); the moisturizing belt (22) is provided around the box body (1), and can be tensioned by the at least two rotating shafts (21) and move around the box body (1); a first relief hole is formed in the moisturizing belt (22); and when the first relief hole moves to the first opening (11) along with the moisturizing belt (22), a part (100) to be moisturized can stretch into the box body (1) by means of the relief hole (221). Further disclosed is a moisturizing method. The apparatus can prevent core sand from being cured, and is low in cost.
B22C 15/24 - Serrage par pression de gaz ou par dépression impliquant des dispositifs de soufflage dans lesquels le matériau de moulage arrive sous forme de particules libres
B22C 19/00 - Composants ou accessoires des machines à mouler pour faire des moules ou des noyaux
23.
CORE SAND MANUFACTURING PROCEDURE AND CORE SAND MANUFACTURING UNIT
The present application relates to the field of core sand manufacturing technology, and provides a core sand manufacturing procedure and a core sand manufacturing unit. The core sand manufacturing procedure provided in the present application comprises: calculating, according to information of core sand to be manufactured, the weight of the core sand to be mixed at a time; mixing raw sand and binder to prepare mixed core sand; calculating and calibrating the height of feeding level in a sand cylinder of the core sand manufacturing unit; and directly adding the mixed core sand into a core sand manufacturing mechanism. The core sand manufacturing procedure provided in the present application alleviates the technical problem that the core sand tends to have a poor quality due to the core sand manufacturing procedure in the related art.
B22C 9/10 - NoyauxFabrication ou mise en place des noyaux
B22C 5/04 - Machines ou dispositifs spécialement conçus pour la préparation ou la manutention des matériaux à mouler, dans la mesure où ils sont spécialement adaptés à cette fin par broyage, mélange, malaxage, agitation
24.
SUPER-EFFICIENT AIR HEATING SYSTEM AND CORE MAKING MACHINE
A super-efficient air heating system, comprising an air blowing cover (10) and heaters (20) made of a material having a melting point of 700-1500℃. An S-shaped air flow channel (21) is formed in each heater; an outlet of each air flow channel can be connected to an inlet of the air blowing cover, and high-temperature air is conveyed to a mold cavity of a core box by means of the air blowing cover; the heaters and the air blowing cover may be integrated, without an intermediate pipeline or a pipeline having a high temperature heat tracing function connected to the heaters and the air blowing cover. Also provided is a core making machine comprising the super-efficient air heating system. The material of the heaters of the core making machine is changed to increase the set temperature of the heaters so as to obtain ultra-high temperature hot air; moreover, the temperature loss of a hot air conveying pipeline is reduced, and the same air blowing cover outlet temperature is obtained; the energy consumption is lower, and the air blowing cover outlet temperature is higher, thereby facilitating further improving the inorganic curing efficiency.
A sand shakeout apparatus, comprising a worktable (1), a clamping mechanism (2), and a vibrating hammer (3). The workbench (1) is configured to hold a casting (100) to be subjected to sand shakeout; the clamping mechanism (2) is configured to fix the casting (100), and the vibrating hammer (3) can strike the casting (100) to apply vibrational force to the casting (100), wherein the clamping mechanism (2) comprises a pair of opposed clamping parts (21), and a pair of airbag parts (22) that are disposed on the workbench (1) and are configured to fix the pair of clamping parts (21), respectively. When being inflated or deflated, the pair of airbag parts (22) can respectively drive the pair of clamping parts (21) to move toward or away from each other, so as to cause said clamping parts (21) to clamp together or to release the casting (100).
A material conveying mechanism (100) and a weighing system (001), relating to the technical field of material distribution. The material conveying mechanism (100) comprises a first conveyor (110) and a second conveyor (120). The first conveyor (110) comprises a first conveying cylinder (111) and a first spiral conveying blade (112) that is disposed in the first conveying cylinder (111) and has a running fit with the first conveying cylinder (111). The second conveyor (120) comprises a second conveying cylinder (121) and a second spiral conveying blade (122) that disposed in the second conveying cylinder (121) and has a running fit with the second conveying cylinder (121). The first conveying cylinder (111) is connected to the second conveying cylinder (121). The outer diameter of the first spiral conveying blade (112) is greater than that of the second spiral conveying blade (122), and the conveying capacity of the first conveyor (110) is greater than that of the second conveyor (120) under the conditions of the same linear speed and the same time. The first conveyor (110) and the second conveyor (120) are both configured to convey materials to the same weighing mechanism (300). The weighing system (001) comprises the material conveying mechanism (100).
A sand core strength testing device and a method for the same, pertaining to the technical field of sand core testing, and applicable to core making devices. The core making device comprises a core box (100), and further comprises a testing device (300), wherein the testing device (300) is capable of pressing against a sand core head (200) within the core box (100). When the testing device (300) moves toward an interior of the core box (100) with a specific press strength, the testing device (300) squeezes the sand core head (200), and a movement distance of the testing device (300) can be obtained. Since the press strength of the testing device (300) is known, and the pressing force applied to the sand core head (200) is always consistent, it is possible to obtain a movement distance indicating that a sand core strength is acceptable with a limited number of experiments. Accordingly, for each test, a movement distance of the testing device is compared against the movement distance indicating that the sand core strength is acceptable, thereby enabling on-line strength testing in each sand core making process.
G01N 3/08 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique par application d'efforts permanents de traction ou de compression
28.
SAND CORE MANUFACTURING DEVICE AND MANUFACTURING PROCESS
A sand core manufacturing device, comprising a box body (100) and columns (200), wherein the box body is configured to have a cavity (104); a plurality of columns are comprised; adjacent columns are tightly fitted to and provided independent from each other; the column is configured to move to a preset position in the cavity under the function of the external force so as to form the shape matching a preset sand core blank; and a sand core manufacturing process, comprising the steps of: manufacturing a sand core blank using the sand core manufacturing device, curing and taking same out, and re-processing same to obtain the required sand core. The use of the sand core manufacturing device and manufacturing process can quickly manufacture sand cores having different structures and shapes.
A low-pressure mold-filling method and apparatus, the apparatus comprising a crucible furnace (5) and a riser tube (2). The method comprises: applying pressure to the metal melt in the crucible furnace (5) to enable the metal melt to rise through the riser tube (2) until the whole cavity (1) is completely filled, the temperature of the metal melt passing through the riser tube (2) being 30-60% of the temperature interval width of the liquid phase temperature of the metal or alloy liquid plus the solidifying temperature thereof; and electromagnetically stirring the metal melt when same is flowing through the riser tube (2).
Disclosed is an integrated sand mixer, realized in the form of a vane agitating type sand mixer. The sand mixer has a sand dosing device and an agitating drum, wherein pre-mixing vanes (7) are arranged in the sand dosing device, and a pre-mixing power mechanism (8) for driving the pre-mixing vanes (7) is provided, such that the sand dosing device constitutes a pre-mixing drum (3); a powder material inlet and a liquid material inlet are respectively provided on the agitating drum, and an outlet of the pre-mixing drum (3) is connected to the powder material inlet of the agitating drum by means of a valve, such that the agitating drum constitutes a final mixing drum (2); a dosed raw sand addition, a dosed powder auxiliary material addition, and a raw sand and powder auxiliary material pre-mixing operation are carried out in the pre-mixing drum (3); the raw sand, pre-mixed with the powder auxiliary material, and a liquid resin material enter the final mixing drum (2) in specific quantities, agitating vanes (6) are driven to rotate, and the required molding sand is obtained after being uniformly mixed; and when the final mixing drum (2) carries out an agitating operation, a dosed raw sand addition, a dosed powder auxiliary material addition, and a raw sand and powder auxiliary material pre-mixing operation are carried out synchronously for the next cycle in the pre-mixing drum (3). Further disclosed is an integrated sand mixing method. By means of the sand mixer and the sand mixing method, two-stage sand mixing is realized without adding a container; two units can work at the same time, such that sand mixing time is shortened greatly; and relationships between mixing time, sand mixing temperature rise and uniformity can be adjusted at will.
B22C 5/04 - Machines ou dispositifs spécialement conçus pour la préparation ou la manutention des matériaux à mouler, dans la mesure où ils sont spécialement adaptés à cette fin par broyage, mélange, malaxage, agitation
31.
CORE-MAKING MACHINE AND CORE-MAKING MACHINE CONTROL METHOD AND SYSTEM
Provided is a method for preparing a sand core, comprising rotating and mixing sand gravel and an additive along a first rotary shaft in the vertical direction in a pre-mixing bin (104) to obtain a first raw material; rotating and mixing at least part of the first raw material, a curing agent, and an auxiliary material along a second rotary shaft in the vertical direction in a final mixing bin (107) to obtain a sand-core raw material; using said sand-core raw material to prepare a sand core. Also comprised are a core-making device, a core-making parameter determination method, a core-making parameter determination system, a core-making parameter determination apparatus, and a computer-readable storage medium. Arranging pre-mixing and final mixing separately can prevent the waste of time and raw materials, improving sand-core production efficiency.
A humidification device and humidification method used for a core-manufacturing machine, which are used for preserving the moisture of or humidifying one or more areas in a core sand mixing device, conveying device, storage device and sand ejecting device of the core-manufacturing machine; the invention comprises a humidification device, a control device and a humidification pipe (4) that communicates with the humidification device and an area to undergo moisture preservation or humidification, and is characterized in that: the humidification device is mainly composed of a water tank (2), a water intake valve (10) and atomization devices equal in number to the areas to undergo moisture preservation or humidification; each atomization device is provided with a vertically disposed cage mist chamber (3), a bottom portion of the cage mist chamber (3) being provided with a nozzle (5) having an upward outlet, and a top portion of the cage mist chamber (3) communicating with the humidification pipe (4); the nozzle (5) is connected to a water suction pipe (6) and an air intake pipe (7), a water intake port of the suction pipe (6) is located within the water tank (2), and the air inlet pipe (7) is connected to a compressed air source by means of an air valve (8); the size of the cage mist chamber (3) matches the minimum dispersion area sprayed by the nozzle (5). The invention facilitates control and may guarantee the transportation of mist, and outputted water mist particles have uniform dispersibility and stable flow rate, while humidity is easy to control; moreover, the structure is simple and reliable, and is suitable for harsh working environments.
B05B 7/04 - Pistolets pulvérisateursAppareillages pour l'évacuation avec des dispositifs permettant le mélange de liquides ou d'autres matériaux fluides avant l'évacuation
B05B 7/12 - Pistolets pulvérisateursAppareillages pour l'évacuation agencés pour commander le volume débité, p. ex. à l'aide de passages réglables
33.
MAINTENANCE DEVICE MATCHING CORE MAKING MACHINE AND CORE MAKING MACHINE COMPRISING MAINTENANCE DEVICE
A core making machine assembly maintenance device (100) which matches a core making machine, comprising a lifting frame (120), an overturning frame (130), a first fixing piece (140), a lifting driving mechanism (150), an overturning driving mechanism (160) and a control signal receiving mechanism (170). The lifting frame is positioned outside of the core making machine (180); the overturning frame is pivoted on the lifting frame by means of a horizontal rotating shaft; the first fixing piece is located on the overturning frame and is used for fixing an upper core box of the core making machine onto the overturning frame; the lifting driving mechanism is used for driving the lifting frame to go up and down; the overturning driving mechanism is used for driving the overturning frame to rotate along the horizontal rotating shaft; the control signal receiving mechanism is used for receiving a control signal from a core making machine control part (181); the maintenance device may cooperate with the core making machine to clean the upper core box on site, so that the core making efficiency and the cleaning efficiency are improved, and safety is also increased. Also provided are the core making machine comprising the maintenance device, a method for automatically maintaining the core making machine, a core making machine control device, comprising a processor used for performing the method, and a computer-readable storage medium which stores computer instructions, the method being executed after a computer reads the instructions.
Disclosed are an air blowing cover, a core preparation apparatus and an air blowing method. The air blowing cover (100) comprises a housing (10), a delivery pipeline (20) and a heating member, wherein a side of the housing (10) is provided with an air blowing opening (11); a partition plate (12) is arranged inside the housing (10), with the partition plate (12) dividing an accommodation cavity inside the housing (10) into a first chamber (13) and a second chamber (14) in communication with the air blowing opening (11); the delivery pipeline (20) is located inside the first chamber (13), with the delivery pipeline (20) being provided with an air inlet end (21) and an air outlet end (22) in communication with each other, the air outlet end (22) being connected to the partition plate (12) and being in communication with the second chamber (14); the delivery pipeline (20) is provided with an input portion (23), with the input portion (23) being configured to enable a catalytic liquid to flow into the delivery pipeline (20), the input portion (23) being located between the air inlet end (21) and the air outlet end (22), and the heating member being configured to heat the delivery pipeline (20).
An aluminum alloy heat exchanger, comprising a combustion chamber (3) and a housing (1), heat exchange columns (4) being arranged in the combustion chamber; the combustion chamber consisting of two parts divided perpendicular to the heat exchange columns; the two parts of the combustion chamber being fixedly connected by means of friction stir welding; an anti-corrosion layer being provided on the surface of an inner cavity of the combustion chamber; the housing being sleeved at the periphery of the combustion chamber, and being fixedly connected to an outer wall of the combustion chamber by means of friction stir welding; and a preparation method for the aluminum alloy heat exchanger. The heat exchanger prepared by the preparation method is simple in structure, the combustion chamber is separated, and the inner cavity is separated and exposed. Corrosion resistance can be conveniently performed on the inner cavity of the combustion chamber, the product quality is improved, and the service life is prolonged.
F24H 1/10 - Chauffe-eau instantanés, c.-à-d. dans lesquels il n'y a production de chaleur que lorsque l'eau s'écoule, p. ex. avec contact direct de l'eau avec l'agent chauffant
B23K 20/12 - Soudage non électrique par percussion ou par une autre forme de pression, avec ou sans chauffage, p. ex. revêtement ou placage la chaleur étant produite par frictionSoudage par friction
A sand shooting nozzle, comprising a sand shooting nozzle body (1) provided in the center with a sand shooting channel (4). A circular cavity (5) is provided on the sand shooting nozzle body around the sand shooting channel, and a sealing ring (6) is provided at an outer periphery of a lower end of the sand shooting nozzle body. An annular cavity is provided in the sand shooting nozzle body, and a heat transfer channel is reduced by means of providing the sealing ring, thereby achieving good thermal insulation. Sand in the sand shooting nozzle will not solidify in a gap of the sand shooting nozzle, which ensures the stability of the quality of a sand core, greatly reduces the amount of work in cleaning the shooting nozzle, and improves production efficiency.
Disclosed is a core-making machine based on electrically-driven mold closing, comprising a frame, a lower moving cart, an upper moving cart, an upper core box lifting mechanism, a sand shooting unit, and a blowing unit, wherein the upper core box lifting mechanism mainly consists of four guide rod posts disposed in the frame, an upper core box lifting frame matching racks on the four guide rod posts by means of four sets of gear transmission mechanisms respectively, an upper core box servomotor, and a synchronization mechanism; an upper pressure head mechanism is provided, and is located above the upper core box lifting mechanism and provided with a lifting drive mechanism; the lifting drive mechanism comprises at least one set of electric cylinders each consisting of a servomotor and a lead screw, and at least one pair of mechanical linkage mechanisms; the outputs of the electric cylinders act on the upper pressure head mechanisms by means of the mechanical linkage mechanisms. The present invention implements the action and function of the core-making machine just by means of electric driving and pneumatic control, thereby improving the movement stability, synchronism and efficiency of the core-making machine. In addition, mold-closing locking is more reliable.
B22C 15/24 - Serrage par pression de gaz ou par dépression impliquant des dispositifs de soufflage dans lesquels le matériau de moulage arrive sous forme de particules libres
Disclosed is a sand mixer, comprising a machine base (1), a mixing device connected to the machine base, and a sand feeding hopper (2) and a water spray device (6) connected to the mixing device, wherein the mixing device comprises a sand conveying and mixing mechanism (3) and a final mixing mechanism (4), a first end of the sand conveying and mixing mechanism is connected to the sand feeding hopper, and a second end of the sand conveying and mixing mechanism is connected to the final mixing mechanism; the outside of both the sand conveying and mixing mechanism and the final mixing mechanism is sheathed with a temperature control cylinder (5), a gap for introducing a temperature control medium is provided between the temperature control cylinder and the sand conveying and mixing mechanism and between the temperature control cylinder and the final mixing mechanism; and the water spray device is respectively in communication with the sand conveying and mixing mechanism and the final mixing mechanism. A sand mixing process is further comprised. The sand mixer realises continuous sand mixing, and effectively controls the temperature of sand and the internal humidity, thereby improving the sand mixing efficiency and the performance of mixed sand.
B22C 5/04 - Machines ou dispositifs spécialement conçus pour la préparation ou la manutention des matériaux à mouler, dans la mesure où ils sont spécialement adaptés à cette fin par broyage, mélange, malaxage, agitation
B22C 5/08 - Machines ou dispositifs spécialement conçus pour la préparation ou la manutention des matériaux à mouler, dans la mesure où ils sont spécialement adaptés à cette fin par pulvérisation, refroidissement ou séchage
39.
SAND MIXING PROCESS FOR IMPROVING COMPREHENSIVE PROPERTY OF RESIN SAND
A sand mixing process for a resin sand comprises dividing casting sand into at least two parts. Each part of casting sand is pre-mixed with one corresponding composition to form a pre-mixed mixture. Each composition is one or more added materials which do not undergo a chemical reaction with each other, and each composition is different. A plurality of pre-mixed mixtures are finally mixed to form a final mixture. The pre-mixed mixtures in the sand mixing process can be stored for a long time, can be mixed and used at any time, and during final mixing, the pre-mixed mixtures are subjected to a sufficient chemical reaction with each other or mutually promote the reaction for binding and molding, so that the final mixture is more uniform, thereby improving comprehensive properties of the mixed sand.
B22C 5/04 - Machines ou dispositifs spécialement conçus pour la préparation ou la manutention des matériaux à mouler, dans la mesure où ils sont spécialement adaptés à cette fin par broyage, mélange, malaxage, agitation
B22C 1/16 - Compositions des matériaux réfractaires pour moules ou noyauxLeur structure granulaireCaractéristiques chimiques ou physiques de la mise en forme ou de la fabrication des moules caractérisées par l'emploi des agents liantsMélange d'agents liants
40.
CORE MAKING MACHINE WITH INTEGRATED MICROWAVE CURING FUNCTION
Disclosed is a core making machine with an integrated microwave curing function, comprising a microwave curing device and a mould, wherein the microwave curing device is arranged on the periphery of the mould. When the mould is closed, the upper and lower portions of the microwave curing device are closed to form a closed cavity, such that the mould is accommodated in the closed cavity; and when the mould is opened, the upper and lower portions of the microwave curing device are separated, along with the mould. The core making machine has integrated the microwave curing function, resulting in uniform drying and curing, long storage of sand cores, reduced energy consumption, and improved production efficiency. Moreover, the sand cores can be effectively prevented from being transferred halfway during production, and consequently, the process of core production is simplified, and the labour intensity is decreased. In addition, the microwave curing device can close or open along with the mould and the mould can perform microwave curing in the closed cavity formed when the microwave device is closed, and thus radiation leakage can be prevented as much as possible, such that the core making machine is safer to use.
B22C 1/00 - Compositions des matériaux réfractaires pour moules ou noyauxLeur structure granulaireCaractéristiques chimiques ou physiques de la mise en forme ou de la fabrication des moules
B22C 9/12 - Traitement des moules ou noyaux, p. ex. séchage, étuvage
41.
ONE-STOP CORE-MAKING UNIT AND INSTALLATION METHOD THEREFOR
Disclosed are a one-stop core-making unit and an installation method therefor. The one-stop core-making unit comprises a crude sand treatment system (210), a sand-mixing system (220) and a core-making system (230). The crude sand treatment system (210) comprises a plurality of crude sand treatment devices. The core-making system (230) comprises a plurality of core-making devices. The sand-mixing system (220) is comprised of a sand-mixing hopper body device, a weighting element and a resin dosing device. A sand-mixing outlet is directly connected to a sand nozzle of each core-making device. The above-mentioned one-stop core-making unit is integrally assembled in at least two frames (211, 221, 231) in the factory. One or more of the plurality of crude sand treatment devices, the plurality of core-making devices, the sand-mixing hopper body device and the resin dosing device are assembled in the frames (211, 221, 231). The prefabricated modules are connected together through a frame structure, both of which are part of a product, without the need for installing a steel structure on site by customers and without the need for pre-embedding base fixing steel plates on site by customers. The installation is simple and does not require on-site installation with professional installation personnel and large lifting tools, and customers can perform installation on their own. Since the height of the core-making unit is greatly reduced, the difficulty of installation is also reduced.
B22C 9/10 - NoyauxFabrication ou mise en place des noyaux
B22C 5/04 - Machines ou dispositifs spécialement conçus pour la préparation ou la manutention des matériaux à mouler, dans la mesure où ils sont spécialement adaptés à cette fin par broyage, mélange, malaxage, agitation
42.
QUANTITATIVE SAND ADDING MECHANISM OF CORE SHOOTER AND QUANTITATIVE SAND ADDING METHOD
Disclosed are a quantitative sand adding mechanism of a core shooter. The core shooter comprises a lower rack (11) and an upper rack (12) located above the lower rack. The lower rack is provided with a movable shooting nozzle device (2). The quantitative sand adding mechanism comprises a sand storage hopper (31), a first sand adding valve (32) and a vibration motor (33). The sand storage hopper is mounted on the upper rack. The first sand adding valve is arranged at a sand outlet of the sand storage hopper. The vibration motor is mounted on the outer wall of the sand storage hopper. The first sand adding valve is an adjustable valve. The quantitative sand adding mechanism also comprises a quantitative hopper (34). The quantitative hopper is connected to the upper rack via a weighing element (35). A sand inlet of the quantitative hopper is connected to the sand outlet of the sand storage hopper via the first sand adding valve. A sand outlet of the quantitative hopper is provided with a second sand adding valve (36). The shooting nozzle device is connected to the sand outlet of the quantitative hopper via the second sand adding valve when the shooting nozzle device is in a sand adding position. The invention further discloses a quantitative sand adding method of the core shooter adopting the quantitative sand adding mechanism. The sand adding process is not affected by the factors of the accumulation shape of moulding sand and the valve closing process. The sand adding accuracy of the core shooter can be improved, and the scrap rate in core making is reduced.
B22C 19/00 - Composants ou accessoires des machines à mouler pour faire des moules ou des noyaux
B22C 15/23 - Serrage par pression de gaz ou par dépression
B22C 5/12 - Machines ou dispositifs spécialement conçus pour la préparation ou la manutention des matériaux à mouler, dans la mesure où ils sont spécialement adaptés à cette fin pour le remplissage des châssis
43.
CONTROLLABLE SAND SHOOTING MECHANISM OF CORE SHOOTER AND SAND SHOOTING METHOD
Disclosed is a controllable sand shooting mechanism of a core shooter. The controllable sand shooting mechanism comprises a compressed air source, an air inlet valve (2), an air storage bag (1), a sand shooting valve device and a sand shooting nozzle device (5). The air storage bag (1) is connected to the compressed air source via the air inlet valve (2). The sand shooting valve device comprises a first sand shooting valve (3) and a second sand shooting valve (4) which are arranged in parallel. The air storage bag (1) is connected to the sand shooting nozzle device (5) via a first air inlet valve and a second air inlet valve. The first sand shooting valve (3) is a two-position two-way valve with a diameter in a range of DN25-DN100. The second sand shooting valve is an adjustable valve with a maximum diameter in a range of DN25-DN100. The controllable sand shooting mechanism can match different specifications of sand cores to provide sand shooting modes and to improve the sand shooting effect, and is applicable to production of complex sand cores. The universality of the core shooter is improved. The invention further discloses a controllable sand shooting method adopting the controllable sand shooting mechanism.
B22C 15/23 - Serrage par pression de gaz ou par dépression
B22C 15/24 - Serrage par pression de gaz ou par dépression impliquant des dispositifs de soufflage dans lesquels le matériau de moulage arrive sous forme de particules libres
44.
SAND SHOOTING EXHAUSTING AND NOISE REDUCTION METHOD AND MECHANISM FOR CORE SHOOTING MACHINE
A sand shooting exhausting and noise reduction method and mechanism for a core shooting machine are used for reducing the exhaust noise of the sand shooting exhausting mechanism. The method comprises the following steps: 1) exhausting at a low flow rate, controlling the drift diameter of a vent valve to be DN6 to DN25, and enabling high-pressure gas in a sand shooting barrel to be exhausted into a silencer (8) by sequentially passing through a vent net (4) and a vent pipe (5) at a low flow rate, so that the gas pressure in the sand shooting barrel (2) is reduced to 1 bar to 2 bar; and 2) exhausting at a high flow rate, controlling the drift diameter of the vent valve to be DN32 to DN80, and enabling low-pressure gas in the sand shooting barrel (2) to be exhausted into the silencer by sequentially passing through the vent net (4) and the vent pipe (5) at a high flow rate. By means of the sand shooting exhausting and noise reduction method, the noise generated by sand shooting exhausting can be reduced, the phenomenon of sand attached to the sand shooting vent net can be avoided and the service life of the vent net can be prolonged.
B22C 15/24 - Serrage par pression de gaz ou par dépression impliquant des dispositifs de soufflage dans lesquels le matériau de moulage arrive sous forme de particules libres
B22C 19/00 - Composants ou accessoires des machines à mouler pour faire des moules ou des noyaux
