Double-sided film tearing equipment

Abstract

The invention discloses a double-sided film-tearing device, which relates to the technical field of battery production; the double-sided film-tearing device comprises a rotating table; a plurality of film-tearing devices are installed on the rotating table, the film-tearing devices comprise an upper film-tearing structure and a lower film-tearing structure which are arranged in pairs; a conveying table is arranged between the upper film-tearing structure and the lower film-tearing structure, and an avoidance opening is formed on the conveying table; the upper film-tearing structure comprises an upper pressure roller and an upper rotating device, and the lower film-tearing structure comprises a lower pressure roller and a lower rotating device, and adhesive tapes are arranged on the outer walls of the upper pressure roller and the lower pressure roller; when performing the film-tearing operation, the upper film-tearing structure and the lower film-tearing structure move toward each other, and the adhesive tape on the upper pressure roller is adhered to the film on one side of the sheet material, and the adhesive tape on the lower pressure roller passes through the avoidance opening and adheres to the film on the other side of the sheet material, and then the upper rotating device and the lower rotating device are respectively pulled by the adhesive tape to separate the film from the sheet material, so that the double-sided film-tearing of the battery is completed at one time, and the work efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of pool production, in particular to a double-sided film tearing device. Background Art

[0002] Batteries are important parts that people use in their daily lives. Usually, there is a thin film on the battery, which is attached to the upper and lower sides of the battery. Before using the battery, the film on the surface of the battery needs to be torn off. In the past, manual film tearing was usually used, but manual film tearing has the problem of occupying labor resources, so the mechanical automation of the film tearing process is the development trend.

[0003] The film tearing equipment in the prior art uses a one-way processing method to tear the film on both sides of the battery, which at least includes the steps of loading - tearing the film on the first side - turning over - tearing the film on the second side. Therefore, a transportation device such as a loading arm structure is required for transportation between each step, resulting in redundant steps and low production efficiency in the film tearing equipment in the prior art. Summary of the invention

[0004] The purpose of the present invention is to provide a double-sided film tearing device to solve the problem of low production efficiency of current film tearing devices.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A double-sided film-tearing device comprises a rotating platform; a plurality of film-tearing devices are installed on the rotating platform, the film-tearing devices comprise an upper film-tearing structure and a lower film-tearing structure arranged in pairs, and the upper film-tearing structure and the lower film-tearing structure can move towards each other;

[0007] A conveying platform for placing sheet materials is provided between the upper film-tearing structure and the lower film-tearing structure, and an escape opening is formed on the conveying platform;

[0008] The upper film-tearing structure comprises an upper pressing roller, and the lower film-tearing structure comprises a lower pressing roller, and adhesive tapes are respectively stretched on the outer side walls of the upper pressing roller and the lower pressing roller;

[0009] When performing the film tearing operation, the upper film tearing structure and the lower film tearing structure are driven to move toward each other, so that the tape on the upper pressing roller adheres to the film on one side of the sheet material, and the tape on the lower pressing roller passes through the avoidance opening and adheres to the film on the other side of the sheet material;

[0010] The upper film-tearing structure further includes an upper rotating device for pulling the adhesive tape, and the lower film-tearing structure further includes a lower rotating device for pulling the adhesive tape.

[0011] Optionally, a loading device for grabbing the sheet material and placing the sheet material on the conveying table is provided on one side of the rotating table;

[0012] The feeding device comprises a support shaft; a mounting plate is rotatably connected to the support shaft, a plurality of slots are arranged at intervals on the mounting plate, the extending direction of the slots is perpendicular to the axial direction of the support shaft, and a plurality of feeding hand structures for clamping the sheet material are installed on the mounting plate;

[0013] The rotating table is also equipped with a plurality of first shifting bars extending in a direction away from the axis of the rotating table; one end of the first shifting bar protruding from the rotating table is provided with a first shifting block, and the first shifting block is used to engage with the groove wall of the shifting groove to drive the loading hand structure to rotate.

[0014] Optionally, the rotating platform is further provided with a plurality of second shifting bars extending in a direction away from the axis of the rotating platform, and a second shifting block is provided at one end of the second shifting bar protruding from the rotating platform;

[0015] A radial telescopic mechanism, a steering mechanism and a feeding cam follower are also installed between the mounting plate and the feeding hand structure, and the radial telescopic mechanism and the steering mechanism are used to keep the feeding hand structure stationary relative to the conveying platform when the second shift block is engaged with the feeding cam follower;

[0016] The feeding arm structure is installed on the rotating end of the steering mechanism;

[0017] The rotating fixed end of the steering mechanism is mounted on the telescopic end of the radial telescopic mechanism;

[0018] The telescopic fixed end portion of the radial telescopic mechanism is fixedly connected to the mounting plate;

[0019] The feeding cam follower is fixedly connected to the telescopic fixed end; the feeding cam follower is used to be moved by the second shifting block to keep the feeding hand structure stationary relative to the film tearing station.

[0020] Optionally, the telescopic fixed end of the radial telescopic mechanism comprises a guide shaft, and the telescopic end can be movably sleeved on the guide shaft;

[0021] A compression spring is provided between the telescopic end portion and the telescopic fixed end portion, one end portion of the compression spring abuts against the telescopic fixed end portion, and the other end portion of the compression spring abuts against the telescopic end portion.

[0022] Optionally, the steering fixed end of the steering mechanism comprises a linear bearing and a torsion spring mounting seat fixedly connected to the telescopic end;

[0023] The linear bearing is rotatably connected to a rotating shaft, and the loading arm structure is fixedly connected to the rotating shaft;

[0024] A torsion spring is installed on the torsion spring mounting seat, one end of the torsion spring abuts against the torsion spring mounting seat, and the other end of the torsion spring abuts against the feeding hand structure.

[0025] Optionally, the feeding cam follower comprises two cam blocks arranged at an interval, and a gap for the second shifting block to be inserted is formed between the two cam blocks.

[0026] Optionally, a cam lifting seat is further installed on the rotating platform, and the upper film tearing structure is further connected to a linkage rod with a film tearing cam follower installed at one end;

[0027] When the second shifting block is separated from the feeding cam follower, the film tearing cam follower abuts against the cam lifting seat, and the upper film tearing structure is lifted by the cam lifting seat in a direction away from the conveying platform.

[0028] Optionally, a lifting cylinder is also installed on the rotating platform; the telescopic end of the lifting cylinder is fixedly connected to the upper film tearing structure;

[0029] When the second shifting block is separated from the feeding cam follower, the telescopic end of the lifting cylinder rises, and the upper film tearing structure rises in a direction away from the conveying platform.

[0030] Optionally, a feeding belt for conveying the sheet material is provided on one side of the feeding device;

[0031] A positioning block for positioning the sheet material is arranged on one side of the feeding pull belt, and a positioning cylinder is arranged on the other side of the feeding pull belt. The telescopic end of the positioning cylinder is used to squeeze the sheet material onto the positioning block.

[0032] Optionally, the conveying platform includes a plurality of first conveying rollers arranged side by side and a plurality of second conveying rollers arranged side by side, and the first conveying rollers and the second conveying rollers are spaced apart to form the avoidance opening.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] The double-sided film tearing equipment provided by the present invention has an upper film tearing structure and a lower film tearing structure moving toward each other during the film tearing operation, and the tape on the upper pressure roller is adhered to the film on one side of the sheet material, and the tape on the lower pressure roller passes through the avoidance opening and adheres to the film on the other side of the sheet material, and then the upper rotating device and the lower rotating device are respectively pulled by the tape to separate the film from the sheet material, and the double-sided film tearing of the battery is completed at one time, which greatly improves the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0036] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed by the present invention.

[0037] Figure 1 A schematic diagram of the partial structure of a double-sided film peeling device provided in an embodiment of the present invention;

[0038] Figure 2 A schematic diagram of the film-tearing principle of a double-sided film-tearing device provided in an embodiment of the present invention;

[0039] Figure 3 It is a front view structural schematic diagram of the upper tear film structure of an embodiment of the present invention;

[0040] Figure 4 A schematic diagram of the three-dimensional structure of a double-sided film tearing device provided in an embodiment of the present invention;

[0041] Figure 5 for Figure 4 A schematic diagram of the local enlarged structure at A;

[0042] Figure 6 for Figure 4 A schematic diagram of the local enlarged structure at B;

[0043] Figure 7 It is a schematic diagram of the overall structure of a feeding device according to an embodiment of the present invention;

[0044] Figure 8 A schematic diagram of the top view of the double-sided film tearing device provided in an embodiment of the present invention;

[0045] Fig. 9 A schematic diagram of the feeding principle of the double-sided film tearing equipment provided in an embodiment of the present invention.

[0046] Illustrations: 1. Rotating table; 2. Film tearing station; 21. Upper film tearing structure; 211. Upper pressure roller; 212. Upper rotating device; 213. Upper glue discharging roller; 214. Upper glue collecting roller; 215. Upper first glue outlet; 216. Upper second glue outlet; 217. Driving roller; 22. Lower film tearing structure; 221. Lower pressure roller; 222. Lower rotating device; 23. Conveying table; 24. First shifting bar; 241. First shifting block; 25. Second shifting bar; 251. Second shifting block;

[0047] 3. Feeding device; 31. Support shaft; 32. Mounting plate; 321. Slot; 33. Feeding hand structure; 341. Guide shaft; 342. Compression spring; 351. Linear bearing; 352. Torsion spring mounting seat; 353. Rotating shaft; 36. Feeding cam follower; 41. Feeding pull belt; 42. Positioning block; 43. Positioning cylinder;

[0048] 501, first limit position; 502, second limit position; 503, rotation center of the turntable; 504, third limit position; 505, center track of the second shift bar end; 506, center track of the first shift bar end; 507, limit position of the cam block; 508, limit position of the first shift bar end; 509, connecting line from the rotating shaft to the center of the loading arm structure; 510, rotation center position of the loading device; 511, relative static interval. DETAILED DESCRIPTION

[0049] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally arranged component at the same time.

[0051] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0052] Please refer to Figures 1 to 9 , Figure 1 A schematic diagram of the partial structure of a double-sided film tearing device provided in an embodiment of the present invention, Figure 2 A schematic diagram of the film-tearing principle of a double-sided film-tearing device provided in an embodiment of the present invention, Figure 3 This is a schematic diagram of the front view of the upper tear film structure of an embodiment of the present invention. Figure 4 A schematic diagram of the three-dimensional structure of a double-sided film tearing device provided in an embodiment of the present invention. Figure 5 for Figure 4 A local enlarged structural diagram at A. Figure 6 for Figure 4 A schematic diagram of the local enlarged structure at B. Figure 7 is a schematic diagram of the overall structure of a feeding device according to an embodiment of the present invention, Figure 8 A schematic diagram of the top view of the double-sided film tearing device provided in an embodiment of the present invention, Fig. 9 A schematic diagram of the feeding principle of the double-sided film tearing equipment provided in an embodiment of the present invention.

[0053] The double-sided film tearing equipment provided in this embodiment is mainly used in the scenario of battery film tearing, and can perform the film tearing process on both the front and back sides of the battery at the same time, thereby improving production efficiency.

[0054] like Figure 1 , Figure 2 and Figure 4 As shown, the double-sided film tearing equipment provided in this embodiment includes a rotating table 1; a plurality of film tearing devices are installed on the rotating table 1, and the film tearing devices include an upper film tearing structure 21 and a lower film tearing structure 22 arranged in pairs, and the upper film tearing structure 21 and the lower film tearing structure 22 can move toward each other.

[0055] A conveying platform 23 for placing the sheet material is provided between the upper film tearing structure 21 and the lower film tearing structure 22, and an escape opening is formed on the conveying platform 23. It should be noted that a film tearing station 2 is provided on the conveying platform 23, the escape opening is located on the film tearing station 2, the width of the sheet material is greater than the width of the escape opening, and the lower pressing roller 221 can press the tape toward the sheet material through the escape opening.

[0056] The upper film-tearing structure 21 includes an upper pressing roller 211 , and the lower film-tearing structure 22 includes a lower pressing roller 221 . Adhesive tapes are respectively stretched on the outer side walls of the upper pressing roller 211 and the lower pressing roller 221 .

[0057] When the film is being peeled off, the upper film peeling structure 21 and the lower film peeling structure 22 are driven to move toward each other, so that the tape on the upper pressing roller 211 adheres to the film on one side of the sheet material, and the tape on the lower pressing roller 221 passes through the avoidance opening and adheres to the film on the other side of the sheet material.

[0058] The upper film-tearing structure 21 further includes an upper rotating device 212 for pulling the adhesive tape, and the lower film-tearing structure 22 further includes a lower rotating device 222 for pulling the adhesive tape.

[0059] Specifically, when performing the film tearing operation, the upper film tearing structure 21 and the lower film tearing structure 22 move toward each other, and the tape on the upper pressure roller 211 adheres to the film on one side of the sheet material, and the tape on the lower pressure roller 221 passes through the avoidance port and adheres to the film on the other side of the sheet material, and then the upper rotating device 212 and the lower rotating device 222 pull the tape respectively, so that the film is separated from the sheet material, and the double-sided film tearing of the battery is completed at one time, which greatly improves the work efficiency. The sheet material refers to a plate-shaped material with a film adhered to it, such as a battery and a screen.

[0060] It should be added that Figure 3 As shown, Figure 3 It is a front view structural diagram of the upper film tearing structure 21; the driving end of the upper rotating device 212 is equipped with a film tearing disk and a driving roller 217; the upper pressure roller 211 is arranged between the conveying platform 23 and the film tearing disk, and the upper pressure roller 211 is rotatably connected to the fixed end of the upper rotating device 212; the edge of the film tearing disk is provided with an upper first glue port 215 and an upper second glue port 216, and the film tearing disk is also rotatably connected with an upper glue discharge roller 213 and an upper glue collection roller 214, the upper glue collection roller 214 is arranged on the side of the driving roller 217 away from the conveying platform 23, and the upper glue discharge roller 213 is arranged on the side of the driving roller 217 close to the conveying platform 23; the adhesive tape is moved along the upper glue discharge roller The directions of the wheel 213, the upper first glue port 215, the upper pressure roller 211, the upper second glue port 216 and the upper glue collecting roller 214 are arranged in sequence, and the two ends of the tape are respectively wound around the upper glue discharging roller 213 and the upper glue collecting roller 214; when tearing the film, part of the tape stretched on the upper pressure roller 211 is bonded to the sheet material, and the film tearing disk is driven by the rotating end of the upper rotating device 212 to rotate along the feeding direction; wherein, when the film is removed, the tape close to the conveying platform 23 of the upper pressure roller 211 is the new tape; when tearing the film, the old tape is pulled through the gap between the upper pressure roller 211 and the conveying platform 23, that is, when tearing the film, the tape close to the conveying platform 23 of the upper pressure roller 211 is the old tape. The overall film tearing process is as follows: the sheet is placed on the conveying table 23, and then the upper pressure roller 211 and the lower pressure roller 221 press the sheet from both sides respectively. Then, the upper rotating device 212 rotates counterclockwise, and the upper first glue port 215 moves in a direction away from the conveying table 23, driving the new tape to adhere to the film and separate the film from the sheet to achieve film peeling. Then, the old tape is pulled through the gap between the upper pressure roller 211 and the conveying table 23, and the old tape is used to complete the remaining film tearing process, which can make full use of the tape, reduce the frequency of tape replacement, and thus improve production efficiency.

[0061] Furthermore, the driving end of the upper rotating device 212 is connected to the film tearing disk through a one-way bearing, and a protrusion is convexly provided on the film tearing disk, and a slot is provided on the fixed end of the upper rotating device 212; when the film tearing process is completed, the upper second glue port 216 rotates in a direction away from the conveying platform 23, and the upper first glue port 215 rotates in a direction close to the conveying platform 23.

[0062] The working process of the upper film tearing structure 21 is as follows: when the sheet material is conveyed to the conveying table 23, the film on the sheet material is adhered by the new adhesive tape; then, the upper rotating device 212 drives the driving roller 217 to rotate counterclockwise. At this time, the one-way bearing is in a locked state, and the upper rotating device 212 drives the film tearing disc to rotate at the same time. Therefore, the relative positions of the driving roller 217, the upper glue-discharging roller 213 and the upper glue-collecting roller 214 remain unchanged, but the driving roller 217, the upper glue-discharging roller 213 and the upper glue-collecting roller 214 are The three rollers 214 rotate counterclockwise relative to the upper pressing roller 211, that is, the upper glue discharging roller 213 and the upper first glue port 215 move away from the upper pressing roller 211, and the upper glue collecting roller 214 and the upper second glue port 216 move closer to the upper pressing roller 211, so that the old tape passes through the gap between the upper pressing roller 211 and the conveying platform 23, so that the old tape sticks to the remaining film, and finally the film peeling process is completed with the old tape and a small amount of new tape, and the battery is pulled to the next station by the tape while the film is peeled off.

[0063] Next, the upper rotating device 212 rotates clockwise. At this time, the one-way bearing is in an unlocked state. However, due to the effect of friction, the relative positions of the driving roller 217, the upper glue-discharging roller 213 and the upper glue-collecting roller 214 remain unchanged until the protrusion is stuck in the slot, that is, the position of the film tearing disc is restricted, and the movable end of the upper rotating device 212 continues to rotate, driving the driving roller 217 to rotate. At this time, the driving roller 217 rotates relative to the upper glue-discharging roller 213 and the upper glue-collecting roller 214, and the driving roller 217 presses the old adhesive tape onto the upper glue-collecting roller 214, and the upper glue-collecting roller 214 is driven to rotate by friction, so that the old adhesive tape is collected in the upper glue-collecting roller 214, and then the new adhesive tape extends from the upper glue-discharging roller 213. Finally, the upper rotating device 212 rotates counterclockwise again, so that the end of the new tape is located between the conveying table 23 and the upper pressing roller 211, so as to prepare for the next film tearing process, thereby ensuring the continuity of the overall film tearing process and improving the processing efficiency. In addition, the structure and principle of the lower film tearing structure 22 are the same as those of the upper film tearing structure 21, and will not be described again.

[0064] Furthermore, if Figures 4 to 8 As shown, a loading device 3 for grabbing a sheet material and placing the sheet material on a conveying table 23 is provided on one side of the rotating table 1 .

[0065] The loading device 3 includes a support shaft 31; a mounting plate 32 is rotatably connected to the support shaft 31, and a plurality of slots 321 are arranged at intervals on the mounting plate 32, and the extension direction of the slots 321 is perpendicular to the axial direction of the support shaft 31, and a plurality of loading hand structures 33 for clamping sheet materials are installed on the mounting plate 32.

[0066] The rotating table 1 is also provided with a plurality of first selector bars 24 extending in a direction away from the axis of the rotating table 1; a first selector block 241 is provided at one end of the first selector bar 24 protruding from the rotating table 1, and the first selector block 241 is used to engage with the groove wall of the selector groove to drive the loading hand structure 33 to rotate. Specifically, before clamping the sheet material, the first selector bar 24 is driven to rotate by the rotating table 1, so that the first selector bar 24 abuts against the selector groove, thereby driving the loading hand structure 33 to rotate onto the loading pull belt 41; then, the first selector bar 24 is separated from the selector groove, and the loading hand structure 33 stops rotating and is located on the loading pull belt, so as to facilitate the grabbing of the sheet material. In the above process, there is no need to stop the rotating table 1 to clamp the sheet material, so that the sheet material can be clamped without stopping the rotating table 1, thereby improving production efficiency. In addition, since there is no need to consider stopping the turntable 1 and there is no need to add workstations to expand the size of the turntable 1 in order to improve production efficiency, the overall structure of the loading device 3 is simplified, the weight of the loading device 3 is reduced, thereby reducing the rotational inertia of the turntable 1, and it is also convenient for the motor to control the start and stop of the turntable 1, thereby reducing the cost of the motor and facilitating control, thereby reducing the cost of the loading device 3.

[0067] Furthermore, if Figures 4 to 8 As shown, a plurality of second shifting bars 25 extending in a direction away from the axis of the rotating table 1 are further installed on the rotating table 1 , and a second shifting block 251 is disposed at one end of the second shifting bar 25 protruding from the rotating table 1 .

[0068] A radial telescopic mechanism, a steering mechanism and a loading cam follower 36 are also installed between the mounting plate 32 and the loading arm structure 33. The radial telescopic mechanism and the steering mechanism are used to keep the loading arm structure 33 stationary relative to the conveying table 23 when the second shift block 251 is engaged with the loading cam follower 36.

[0069] The loading arm structure 33 is installed on the rotating end of the steering mechanism.

[0070] The rotating fixed end of the steering mechanism is installed on the telescopic end of the radial telescopic mechanism.

[0071] The telescopic fixed end of the radial telescopic mechanism is fixedly connected to the mounting plate 32 .

[0072] The loading cam follower 36 is fixedly connected to the telescopic fixed end; the loading cam follower 36 is used to be moved by the second shifting block 251 to keep the loading hand structure 33 stationary relative to the conveying platform 23.

[0073] Specifically, when placing the sheet material on the conveying table 23, the second shift block 251 is inserted into the loading cam follower 36 and is engaged with the loading cam follower 36, thereby driving the loading cam follower 36 to rotate, so as to drive the loading hand structure 33 to move, wherein the radial telescopic mechanism adjusts the position of the telescopic end, and the steering mechanism adjusts the rotation angle of the rotating end, so that the loading hand structure 33 can be stationary relative to the second shift bar 25 and rotate with the second shift bar 25. Since the second shift bar 25 and the conveying table 23 are both rotated by the rotating table 1, that is, during this period, the loading hand structure 33 can be stationary relative to the conveying table 23, so that the loading hand structure 33 can place the sheet material on the film tearing station 2 without stopping the rotating table 1, thereby improving production efficiency.

[0074] Furthermore, the telescopic fixed end of the radial telescopic mechanism includes a guide shaft 341 , and the telescopic end can be movably sleeved on the guide shaft 341 .

[0075] A compression spring 342 is provided between the telescopic end portion and the telescopic fixed end portion. One end portion of the compression spring 342 abuts against the telescopic fixed end portion, and the other end portion of the compression spring 342 abuts against the telescopic end portion.

[0076] Furthermore, the steering fixed end of the steering mechanism includes a linear bearing 351 and a torsion spring mounting seat 352 fixedly connected to the telescopic end.

[0077] The linear bearing 351 is rotatably connected to a rotating shaft 353 , and the loading arm structure 33 is fixedly connected to the rotating shaft 353 .

[0078] A torsion spring is installed on the torsion spring mounting seat 352 , one end of the torsion spring abuts against the torsion spring mounting seat 352 , and the other end of the torsion spring abuts against the feeding hand structure 33 .

[0079] Furthermore, the feeding cam follower 36 includes two cam blocks arranged at an interval, and a gap for the second shifting bar 25 to be inserted is formed between the two cam blocks.

[0080] like Fig. 9As shown, the principle of the feeding device 3 in this embodiment is as follows: the second shift block 251 rotates relative to the rotation center 503 of the rotating table, the first limit position 501 is the position where the second shift bar 25 is initially fully in contact with the cam block, the second limit position 502 is the position where the second shift bar 25 is ready to separate from the cam block, and the third limit position 504 is the position where the second shift bar 25 is fully in contact with the cam block; it can be seen from the second shift bar end center track 505, the first shift bar end center track 506, the cam follower limit position 507, the first shift bar end limit position 508 and the feeding device rotation center position 510 that when the second shift block 251 is in contact with the feeding cam follower During the engagement and connection of the actuator 36, the loading cam follower 36 is relatively stationary relative to the first lever 24 and the second lever 25, and the length of the connecting line 509 from the rotating shaft to the center of the loading hand structure changes, that is, the loading cam follower 36 has a translation and rotation relative to the rotation center position 510 of the loading device, so that the loading hand structure 33 is stationary relative to the second lever 25, and finally a relative stationary interval 511 is obtained in which the loading hand structure 33 is stationary relative to the rotating table 1, so that the loading hand structure 33 can rotate with the rotating table 1 in the relative stationary interval 511, so that the loading hand structure 33 is stationary relative to the conveying table 23, so as to facilitate the placement of the sheet material on the unloading position 4.

[0081] Furthermore, a cam lifting seat is installed on the rotating platform 1, and the upper film tearing structure 21 is also connected to a linkage rod with a film tearing cam follower installed at one end.

[0082] When the second shifting block 251 is separated from the feeding cam follower 36 , the film tearing cam follower abuts against the cam lifting seat, and the upper film tearing structure 21 is lifted by the cam lifting seat in a direction away from the conveying platform 23 .

[0083] In another specific implementation, a lifting cylinder is further installed on the rotating table 1; the telescopic end of the lifting cylinder is fixedly connected to the upper film tearing structure 21.

[0084] When the second shifting block 251 is separated from the feeding cam follower 36 , the telescopic end of the lifting cylinder rises, and the upper film tearing structure 21 rises in a direction away from the conveying platform 23 .

[0085] Furthermore, if Figure 6 As shown, a feeding belt 41 for conveying the sheet material is provided on one side of the feeding device.

[0086] A positioning block 42 for positioning the sheet material is provided on one side of the feeding pull belt 41, and a positioning cylinder 43 is provided on the other side of the feeding pull belt 41. The telescopic end of the positioning cylinder 43 is used to squeeze the sheet material onto the positioning block 42. It should be supplemented that a through-beam sensor can be provided on one side of the feeding pull belt 41 to facilitate detection of the sheet material on the feeding pull belt 41.

[0087] Furthermore, the conveying platform 23 includes a plurality of first conveying rollers arranged side by side and a plurality of second conveying rollers arranged side by side, and the first conveying rollers and the second conveying rollers are spaced apart to form an escape opening.

[0088] The specific working process of the double-sided film tearing device of this embodiment is as follows:

[0089] During feeding, the shooting sensor detects the sheet material on the feeding drawstring 41, the feeding drawstring 41 stops rotating, and the telescopic end of the positioning cylinder 43 drives the cylinder positioning push plate fixedly connected thereto to press the sheet material onto the positioning block 42; at this time, the feeding hand structure 33 is located above the sheet material, and the first shift block 241 is not in contact with the shift groove, the feeding hand structure 33 and the sheet material remain relatively still, the feeding hand structure 33 grabs or absorbs the sheet material and lifts it from the feeding drawstring; the linkage rod drives the feeding cam follower to contact the cam lifting seat, driving the upper tear film structure 21 to move along the far The first shift block 241 contacts the wall of the shift groove 331 and moves the mounting plate 33. During this process, the second shift block 251 contacts the loading cam follower 36, driving the loading hand structure 33 to move, so that the loading hand structure 33 can be stationary relative to the conveying table 23 during the rotation of the conveying table 23, so that the loading hand structure 33 can place the sheet material on the film tearing station 2 easily. Then, the second shift block 251 separates from the loading cam follower 36, and the loading hand structure 33 is reset.

[0090] When tearing the film, the sheet material has been placed on the conveyor table 23, that is, the film tearing station 2, through the above steps; the linkage rod drives the loading cam follower away from the cam lifting seat, so that the upper film tearing structure 21 moves in the direction close to the film tearing station 2, so that the upper pressure roller 211 and the lower pressure roller 221 respectively drive the tape to press on both sides of the sheet material, and then the upper rotating device 212 and the lower rotating device 222 are started to drive the tape to move, wherein the displacement direction of the tape is to the right (the tape of the upper film tearing structure 21 rotates counterclockwise, and the tape of the lower film tearing structure 22 rotates clockwise), thereby driving the film to separate from the sheet material, so that the film is adhered to the tape, and the sheet material is also pulled from the left side of the upper film tearing structure 21 to the right side.

[0091] When unloading, the linkage rod drives the film tearing cam follower to contact the cam lifting seat, so that the upper film tearing structure 21 and the lower film tearing structure 22 are separated, leaving space for unloading on the conveying platform 23; wherein, the structure of the unloading equipment is consistent with that of the loading equipment; when unloading the sheet material, the first shifting bar 24 shifts the shifting groove of the mounting plate of the unloading equipment, driving the unloading hand structure to move toward the conveying platform 23, and shifts the cam block through the second shifting bar 25, and utilizes the radial telescopic structure and the rotating structure to make the unloading hand structure stationary relative to the conveying platform 23, so as to facilitate the unloading hand structure to clamp the sheet material from the conveying platform 23; then, the second shifting block 251 is separated from the cam block, the unloading hand structure is reset, the first shifting bar 24 is separated from the shifting groove, and the unloading hand structure moves with the sheet material to the top of the unloading equipment, so as to facilitate the placement of the sheet material on the unloading equipment.

[0092] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A double-sided film tearing device, characterized in that: The invention comprises a rotating platform (1); a plurality of film-tearing devices are installed on the rotating platform (1); the film-tearing devices comprise an upper film-tearing structure (21) and a lower film-tearing structure (22) arranged in pairs; the upper film-tearing structure (21) and the lower film-tearing structure (22) can move towards each other; A conveying platform (23) for placing sheet materials is provided between the upper film-tearing structure (21) and the lower film-tearing structure (22), and an escape opening is formed on the conveying platform (23); The upper film-tearing structure (21) comprises an upper pressing roller (211), and the lower film-tearing structure (22) comprises a lower pressing roller (221), and adhesive tapes are respectively stretched on the outer side walls of the upper pressing roller (211) and the lower pressing roller (221); When the film-tearing operation is performed, the upper film-tearing structure (21) and the lower film-tearing structure (22) are driven to move toward each other, so that the adhesive tape on the upper pressing roller (211) adheres to the film on one side of the sheet material, and the adhesive tape on the lower pressing roller (221) passes through the avoidance opening and adheres to the film on the other side of the sheet material; The upper film-tearing structure (21) further comprises an upper rotating device (212) for pulling the adhesive tape, and the lower film-tearing structure (22) further comprises a lower rotating device (222) for pulling the adhesive tape; A loading device (3) for grabbing a sheet material and placing the sheet material on the conveying platform (23) is provided on one side of the rotating platform (1); The feeding device (3) comprises a support shaft (31); a mounting plate (32) is rotatably connected to the support shaft (31); a plurality of shifting grooves (321) are arranged at intervals on the mounting plate (32); the extending direction of the shifting grooves (321) is perpendicular to the axial direction of the support shaft (31); and a plurality of feeding hand structures (33) for clamping sheet materials are installed on the mounting plate (32); The rotating table (1) is also provided with a plurality of first shifting bars (24) extending in a direction away from the axis of the rotating table (1); one end of the first shifting bar (24) protruding from the rotating table (1) is provided with a first shifting block (241), and the first shifting block (241) is used for engaging with the groove wall of the shifting groove to drive the loading hand structure (33) to rotate; The rotating platform (1) is also provided with a plurality of second shifting bars (25) extending in a direction away from the axis of the rotating platform (1); a second shifting block (251) is provided at one end of the second shifting bar (25) protruding from the rotating platform (1); A radial telescopic mechanism, a steering mechanism and a loading cam follower (36) are also installed between the mounting plate (32) and the loading hand structure (33); the radial telescopic mechanism and the steering mechanism are used to keep the loading hand structure (33) stationary relative to the conveying platform (23) when the second shifting block (251) is engaged with the loading cam follower (36); The loading arm structure (33) is installed on the rotating end of the steering mechanism; The rotating fixed end of the steering mechanism is mounted on the telescopic end of the radial telescopic mechanism; The telescopic fixed end portion of the radial telescopic mechanism is fixedly connected to the mounting plate (32); The loading cam follower (36) is fixedly connected to the telescopic fixed end; the loading cam follower (36) is used to be moved by the second shifting block (251) to keep the loading hand structure (33) stationary relative to the conveying platform (23); A loading belt (41) for conveying sheet materials is provided on one side of the loading device (2); A positioning block (42) for positioning the sheet material is provided on one side of the feeding pull belt (41), and a positioning cylinder (43) is provided on the other side of the feeding pull belt (41). The telescopic end of the positioning cylinder (43) is used to squeeze the sheet material onto the positioning block (42).

2. The double-sided film tearing device according to claim 1, characterized in that: The telescopic fixed end of the radial telescopic mechanism comprises a guide shaft (341), and the telescopic end can be movably sleeved on the guide shaft (341); A compression spring (342) is provided between the telescopic end and the telescopic fixed end, one end of the compression spring (342) abuts against the telescopic fixed end, and the other end of the compression spring (342) abuts against the telescopic end.

3. The double-sided film tearing device according to claim 1, characterized in that: The steering fixed end of the steering mechanism comprises a linear bearing (351) and a torsion spring mounting seat (352) fixedly connected to the telescopic end; The linear bearing (351) is rotatably connected to a rotating shaft (353), and the loading hand structure (33) is fixedly connected to the rotating shaft (353); A torsion spring is mounted on the torsion spring mounting seat (352), one end of the torsion spring abuts against the torsion spring mounting seat (352), and the other end of the torsion spring abuts against the loading hand structure (33).

4. The double-sided film tearing device according to claim 1, characterized in that: The feeding cam follower comprises two cam blocks arranged at an interval, and a gap is formed between the two cam blocks for the second shifting block (251) to be inserted.

5. The double-sided film tearing device according to claim 1, characterized in that: The rotating platform (1) is also provided with a cam lifting seat, and the upper film-tearing structure (21) is also connected to a linkage rod with a film-tearing cam follower installed at the end; When the second shifting block (251) is separated from the feeding cam follower (36), the film tearing cam follower abuts against the cam lifting seat, and the upper film tearing structure (21) is lifted by the cam lifting seat in a direction away from the conveying platform (23).

6. The double-sided film tearing device according to claim 1, characterized in that: The rotating platform (1) is also provided with a lifting cylinder; the telescopic end of the lifting cylinder is fixedly connected to the upper film tearing structure (21); When the second shifting block (251) is separated from the feeding cam follower (36), the telescopic end of the lifting cylinder rises, and the upper film tearing structure (21) rises in a direction away from the conveying platform (23).

7. The double-sided film tearing device according to claim 1, characterized in that: The conveying platform (23) comprises a plurality of first conveying rollers arranged side by side and a plurality of second conveying rollers arranged side by side, and the first conveying rollers and the second conveying rollers are arranged at intervals to form the avoidance opening.

Images