proceeding without interruption in the operative feeding channels (12), namely those not subject to the stop signal, with the cutting of the logs (11) in succession.
B26D 5/28 - Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed wherein control means on the work feed means renders the cutting member operative the control means being responsive to presence or absence of work
B26D 7/06 - Arrangements for feeding or delivering work of other than sheet, web, or filamentary form
B26D 5/00 - Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
B65B 57/16 - Automatic control, checking, warning or safety devices responsive to absence, presence, abnormal feed, or misplacement of articles or materials to be packaged and operating to stop, or to control the speed of, the machine as a whole
B65B 35/10 - Feeding, e.g. conveying, single articles
A gluing device (10) for gluing an end edge (11′) of a log (11) comprising, in succession, an introducing group (20) for introducing logs (11) into the gluing device (10), a handling group (30) for handling the log (11) associated with detection means for detecting the end edge (11′) and comprising a pair of rollers (31, 32) selectively for advancing and for holding in rotation the log (11), a glue dispensing group (40) and a transferring group (50) for transferring the log (11) comprising a transferring plane (51) arranged downstream of the lower handling roller (32), between the lower handling roller (32) and the transferring plane (51) has a space (35) for the passage of the end edge (11′), the glue dispensing group (40) being arranged below the transferring plane (51) and comprising a transversal row of glue dispensing nozzles (41) are selectively disinsertable and directed towards the lower handling roller (32), and it comprises a transversal alignment device (23) for aligning the log (11) arranged upstream of the glue dispensing group (40).
A related method of gluing the end edge is also part of the invention.
B65H 19/29 - Securing the trailing end of the wound web to the web roll
B05D 1/02 - Processes for applying liquids or other fluent materials performed by spraying
B05B 9/03 - Spraying apparatus for discharge of liquid or other fluent material without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
A device for the elimination of trimmings of rolls or logs of ribbon-like material associated downstream with a shearing machine of at least one roll or log (11), fed by a feeding plane (13) of rolls (10) and head and/or tail rolls (24), consecutively. The device comprises a conveyor group (14) for carrying the rolls (10) and eliminating the head and/or tail rolls (24,24′), wherein the feeding plane (13) comprises rests (15) and the conveyor group (14) comprises flaps (21), both shaped, facing each other and spaced between each other to define central longitudinal openings (16 and 22) for the passage of pushers (17) which allow at least one roll or log (11) to advance; the conveyor group (14) having chains (20) on which flaps (21) are positioned, and having a length of chains (20) without flaps (21) that define a movable opening (23) between adjacent chains.
B26D 7/18 - Means for removing cut-out material or waste
B26D 7/06 - Arrangements for feeding or delivering work of other than sheet, web, or filamentary form
B26D 5/00 - Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
4.
Rapid tearing device of a strip in a rewinding machine
A rapid tearing device of a strip in a rewinder for the winding of paper around a core (15) to produce a log (12), where said rewinder has a formation area of the log (12), for moving cores (15) forward into a channel (16) defined by a series of cradles (17) by an upper winding roller (18), the device having a blade (24), having the dimension of the width of the rollers (18, 19, 20), which can be moved by actuators (31, 35; 30, 22, 25) between a rest position and an engagement position on a core (15) when the core (15) is unloaded from said conveyor (13) by means of an introducer (34) and introduced into the channel (16) thus blocking, between core (15) and blade (24), the paper (11) which is being unwound.
B65H 35/04 - Delivering articles from cutting or line-perforating machinesArticle or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators
B65H 19/22 - Changing the web roll in winding mechanisms or in connection with winding operations
B65H 19/26 - Cutting-off the web running to the wound web roll
5.
Roll for devices for the treatment of ribbon-shaped paper material and related device
In one embodiment, a roll for devices for the treatment of ribbon-shaped paper material includes a central shaft, on which a coaxial tubular jacket is fitted, among which two oscillating and non-rotating connection organs are positioned, the central shaft of the roll having, at opposite ends, oscillating bearings housed in a supporting structure, wherein the central shaft and jacket are both rotating and are also made torsionally integral by means of at least one flexible organ capable of transmitting a torque. In another embodiment, a device for the treatment of ribbon-like paper material includes with a pair of rolls opposed as specified above, wherein a first roll has a tubular steel jacket and a second roll has a tubular rubber jacket.
An apparatus for cutting paper logs in a plurality of rolls is disclosed. The apparatus has at least one longitudinal input channel and at least one output channel defining circular housings and being arranged in a succession among them. The channels have mobile walls with an upper mobile portion and a lower mobile portion. The lower mobile portion is connected with a structure for supporting the apparatus on one side and with an intermediate portion of the upper mobile portion on another side. The upper mobile portion has a free upper end and a base end connected to a movable cursor. A mobile actuator for moving the walls, which engages the upper mobile portion at the base end is also provided.
B05C 1/02 - Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to separate articles
A gluing group of a final edge of a log including in succession an introducing group into the gluing group of the logs one after the other, an unwinding group of the log associated with means for identifying the final edge, an opening group of the final edge from the log and a glue transfer group on the log, in which the opening group of the final edge and the glue transfer group are housed in a slide structure that is mobile with respect to the unwinding group by a predetermined amount dependent upon the diameter of the log, with rolling transfer means of the log from the unwinding group to the slide structure being foreseen.
A gluing machine for gluing the final edge of a log successively comprising an introduction group of the logs one after the other into the machine, an unwinding group of the log associated with identification means of the final edge, an opening group of the final edge from the log, a glue transfer group onto the log and a rewinding group of the final edge onto the log, in which the unwinding group of the log comprises a pair of rollers arranged one on top of the other to make a passage for the log, the pair of rollers being selectively for the feeding and for the retention in rotation of the log, at least one inclined surface of free rolling of the log being provided downstream of the pair of rollers.
A device for distributing glue on an end edge of a log, on a log or on a core for logs comprising a feed surface (16) of logs or cores (15) towards a glue distribution area, wherein the device comprises a container (13) containing glue (12), wherein disposed inside the container (13) is a fixed blade (18) with one free end (22) facing upwards at the level of an interrupted section (19) of the feed surface (16) on which the logs or cores (15) travel, one behind another, the fixed blade (18) being associated with a plate (27) movable from the bottom upwards, and vice versa, which conveys the glue (12) to the level of an upper free end (22) of the fixed blade (18), discharges it on the free end (22) and returns towards the bottom of the container (13), the moving plate (27) having, at an upper end thereof, an area to collect glue (28, 29) in the container (13) and to discharge glue on the fixed blade when it is taken to the level of the upper end (22) of the fixed blade (18).
B05C 1/02 - Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to separate articles
11.
Gluing device of an end edge of a log and relative gluing method
A gluing device of an end edge of a log in a machine for producing logs, wherein logs (14) delivered from being formed are fed on an inclined surface (13) disposed under an upper conveyor belt (17) towards a suction roller (18), connected to a vacuum source, the gluing device having a glue applicator (23, 24) disposed downstream of the suction roller (18), in which device the glue applicator comprises a glue picking up member (24) in a container below (23), which can move engaged between a position immersed in the glue and a position engaged with an end edge (19) of a log (14) disposed unwound on the suction roller (18).
An improved device for gluing the end flap of a log and a gluing method which can be implemented in a machine for producing logs, in which the logs (14), which come from a re-reeling machine, are fed to a gluing device (11) comprising in succession a bottom unwinding roller (16) and a top feed belt (17), and, immediately downstream of the unwinding roller (16), at least one stretch of inclined surface (21), of a pre-set length, followed by a vacuum-suction roller (24), set on top of which is a top roller (25), and then by a glue dispenser (27), there being provided on top of the unwinding roller (16) a blower element (19) for blowing an end flap (29) of the log (14) and, underneath, a photo-electric cell (20) for detecting the end flap (29), in which the log fed to the unwinding roller (16) is set with a position of the free end staggered by an angle (α), which is a function of the diameter of the log and of the pre-set length of the stretch of inclined surface (21), in such a way that, when the log thus positioned rolls on the inclined surface, it sets itself on the suction roller (24), with the free portion of the end flap (29) set exactly corresponding to the area of contact with the suction roller (24).
B32B 37/10 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using direct action of vacuum or fluid pressure
patents