Film tearing mechanism for battery cell

Abstract

The film tearing mechanism comprises a rack, a first driving assembly, a first transverse moving seat, a clamping assembly, a second transverse moving seat and a guiding assembly, and the first driving assembly is used for driving the first transverse moving seat to reciprocate in the first horizontal direction; the second transverse moving seat can be installed on the first transverse moving seat in a reciprocating motion mode in the second horizontal direction, and the guide assembly is used for driving the second transverse moving seat to move in the second horizontal direction while the first driving assembly drives the first transverse moving seat to move in the first horizontal direction, so that the second transverse moving seat is close to or away from the spacer in the second horizontal direction. The clamping assembly is mounted on the second transverse moving seat and used for clamping or releasing a glue film of the spacer; according to the film tearing mechanism, only one set of first driving assembly is arranged, the clamping assembly can be driven to be close to or away from the spacer in the first horizontal direction and the second horizontal direction, the overall structure of the film tearing mechanism is simplified, the occupied space is small, and later maintenance and repair are facilitated.

Description

Technical Field

[0001] This application belongs to the field of lithium battery production equipment technology, and in particular relates to a film-peeling mechanism for battery cells. Background Technology

[0002] A battery cell module is formed by stacking multiple battery cells. Spacers are placed between adjacent battery cells to protect each battery cell. The spacers are usually attached to the battery cells with adhesive. In order to protect the adhesive on the surface of the spacers, release paper is usually attached to the surface of the spacers. Therefore, before attaching the spacers to the battery cells, the release paper on the surface of the spacers needs to be removed by a film-removing mechanism.

[0003] To avoid the conveying path of the release liner, existing film-tearing mechanisms typically employ two sets of horizontal sliding components (usually an X-axis horizontal sliding component and a Y-axis horizontal sliding component). The X-axis horizontal sliding component moves the film-tearing gripper closer to the release liner and clamps the tearing end of the release paper. The Y-axis horizontal sliding component moves the film-tearing gripper and the clamped release paper relative to the release liner along the length of the release paper to complete the film-tearing action. However, this results in a complex overall structure and a large footprint for the film-tearing mechanism. Utility Model Content

[0004] The purpose of this application is to provide a film-tearing mechanism for battery cells to solve the problems of existing film-tearing mechanisms having complex structures and large footprints.

[0005] To achieve this objective, the following technical solution is adopted in this application:

[0006] This application discloses a film-peeling mechanism for battery cells, comprising a frame, a first drive assembly, a first transverse slide, a clamping assembly, a second transverse slide, and a guide assembly, wherein:

[0007] The first drive assembly is mounted on the frame, and the first transverse slide is mounted on the frame in a reciprocating manner along the first horizontal direction. The drive end of the first drive assembly is connected to the first transverse slide, and the first drive assembly is configured to drive the first transverse slide to reciprocate along the first horizontal direction.

[0008] The second transverse shift seat is reciprocally mounted on the first transverse shift seat in the second horizontal direction. The guide assembly is configured to drive the second transverse shift seat to move in the second horizontal direction while the first drive assembly drives the first transverse shift seat to move in the first horizontal direction, so that the second transverse shift seat moves closer to or further away from the partition in the second horizontal direction. The first horizontal direction is perpendicular to the second horizontal direction.

[0009] The clamping assembly is mounted on the second transverse slide seat and is configured to clamp or release the adhesive film of the septum;

[0010] The first drive assembly, in conjunction with the guide assembly, drives the clamping assembly to move to the film-tearing station, so that the clamping assembly can hold the adhesive film to be peeled off on the spacer.

[0011] The first drive assembly, in conjunction with the guide assembly, drives the clamping assembly and the adhesive film held by the clamping assembly to move to the release station, so that the adhesive film of the spacer is torn off by the clamping assembly and the torn adhesive film is released.

[0012] The film-tearing mechanism for battery cells proposed in this application, through the cooperation of a first driving component, a first transverse sliding seat, a second transverse sliding seat, and a guiding component, enables the driving clamping component to move along a first horizontal direction while simultaneously approaching or moving away from the separator along a second horizontal direction. This allows the clamping component to hold the adhesive film to be removed from the separator, and then automatically release it after tearing off the clamped film. Compared to existing mechanisms that use two sets of horizontal sliding components, this application only requires one first driving component to drive the clamping component to approach or move away from the separator along both the first and second horizontal directions. This simplifies the overall structure of the film-tearing mechanism, reduces space requirements, and facilitates subsequent maintenance and repair.

[0013] Optionally, the guide assembly includes a track plate and limit wheels, wherein:

[0014] The track plate is fixedly installed on the frame. The track plate has a track groove. The limit wheel is rotatably installed on the second transverse seat and is inserted into the track groove.

[0015] The track groove includes a first straight segment and an inclined segment that are interconnected. The first straight segment extends along a first horizontal direction, and the inclined segment is inclined toward the clamping assembly. The first straight segment is connected to the end of the inclined segment away from the clamping assembly.

[0016] When the clamping assembly is located at the film-tearing station, the limiting wheel is located at the end of the inclined section closer to the clamping assembly; when the clamping assembly is located at the release station, the limiting wheel is located at the end of the first straight section away from the inclined section.

[0017] By setting a first straight segment and an inclined segment that are inclined toward the clamping assembly in the track groove on the track plate, and inserting the limiting wheel connected to the second transverse seat into the track groove, the first transverse seat moves along the first horizontal direction while driving the second transverse seat to move closer to or away from the partition along the second horizontal direction. This provides a guide assembly with precise guidance control, stable and reliable operation and long service life.

[0018] Optionally, the track groove also includes a second straight segment extending along the first horizontal direction. The second straight segment connects to one end of the inclined segment near the clamping assembly. When the clamping assembly is located at the film-tearing station, the limiting wheel is located within the second straight segment.

[0019] By setting a second straight section in the track groove that connects to the end of the inclined section near the clamping component, the flexibility of the clamping component is improved. The position of the clamping component relative to the spacer at the film-tearing station can be adjusted by the first drive component to adapt to spacers of different sizes. Furthermore, the position of the clamping component can be corrected when the spacer position is inaccurate, thus preventing the clamping component from spinning idly.

[0020] Optionally, the guide assembly includes a track and a set of limit wheels, wherein:

[0021] The track is fixedly installed on the frame, extending along the first horizontal direction;

[0022] The limiting wheels are rotatably mounted on the second transverse seat. Each set of limiting wheels includes two limiting wheels, which are respectively attached to the two side walls of the track.

[0023] The track includes a first straight segment and an inclined segment connected to each other. The first straight segment is parallel to the second transverse slide seat, and the inclined segment is inclined toward the clamping assembly. The first straight segment connects to the end of the inclined segment away from the clamping assembly.

[0024] When the clamping assembly is located at the film-tearing station, the limiting wheel is located at the end of the inclined section closer to the clamping assembly; when the clamping assembly is located at the release station, the limiting wheel is located at the end of the first straight section away from the inclined section.

[0025] By using a track and a set of limit wheels, and setting the track to include a first straight section and an inclined section that tilts toward the clamping assembly, the first transverse seat moves along the first horizontal direction while simultaneously driving the second transverse seat to move closer to or away from the partition along the second horizontal direction. This provides another type of guide assembly with precise guidance control, stable and reliable operation, and long service life.

[0026] Optionally, the guide assembly includes a track and rotating wheels, wherein:

[0027] The track is fixedly installed on the frame, extending along the first horizontal direction;

[0028] The rotating wheel is rotatably mounted on the second transverse support. Two arc-shaped protrusions are spaced apart on the side of the rotating wheel, and the two arc-shaped protrusions respectively fit against the two side walls of the track.

[0029] The track includes a first straight segment and an inclined segment connected to each other. The first straight segment is parallel to the second transverse slide seat, and the inclined segment is inclined toward the clamping assembly. The first straight segment connects to the end of the inclined segment away from the clamping assembly.

[0030] When the clamping assembly is located at the film-tearing station, the rotating wheel is located at the end of the inclined section closer to the clamping assembly; when the clamping assembly is located at the release station, the rotating wheel is located at the end of the first straight section away from the inclined section.

[0031] By cooperating with the track and rotating wheel, and setting the track to include a first straight section and an inclined section that tilts toward the clamping assembly, the first transverse seat moves along the first horizontal direction while simultaneously driving the second transverse seat to move closer to or away from the spacer along the second horizontal direction. This provides a guide assembly with precise guidance control, stable and reliable operation, and long service life.

[0032] Optionally, the clamping assembly includes a second drive assembly and at least one clamping member, wherein:

[0033] The second drive assembly is mounted on the second transverse slide seat. The drive end of the second drive assembly is connected to the clamping member, which is configured to clamp or release the adhesive film to be removed on the diaphragm.

[0034] The second drive assembly is configured to drive the clamping member to rise to a position flush with the adhesive film on the septum, so as to clamp the adhesive film to be removed on the septum by the clamping member.

[0035] The second drive assembly is also configured to drive the clamping member and the clamped film to descend, thereby causing the film held by the clamping member to detach from the septum.

[0036] The clamping component is driven to rise to a position flush with the adhesive film on the separator by the second driving component, and then the adhesive film to be removed on the separator is clamped by the clamping component. The clamping component and the clamped adhesive film are driven to fall by the second driving component, and then the adhesive film is removed from the separator. This provides a clamping component that has both clamping and film-tearing functions. The overall structure is simple, the film-tearing efficiency is high, and the operation is stable and reliable.

[0037] Optionally, the clamping assembly includes two clamping members, which are spaced apart along a first horizontal direction, wherein:

[0038] Each clamp is configured to clamp or release the adhesive film on a septum;

[0039] Alternatively, the two clamps are configured to jointly clamp or release the adhesive film on a single septum.

[0040] The clamping assembly is configured to include two clamping members. Each clamping member clamps or releases the adhesive film of a small spacer, allowing the clamping assembly to clamp the adhesive film of two small spacers simultaneously at a time, thereby enabling the clamping assembly to tear off the adhesive film of two spacers at the same time, improving the film tearing efficiency. By having both clamping members jointly clamp or release the adhesive film on a single large spacer, the clamping assembly can clamp the adhesive film on a single large spacer, thus enabling the clamping assembly to adapt to spacers of different sizes and improving the compatibility of the clamping assembly.

[0041] Optionally, the clamping components include a drive cylinder, an upper jaw, and a lower jaw, wherein:

[0042] The first end of the lower jaw is provided with a first clamping part, the middle part of the upper jaw is hinged to the lower jaw, the fixed end of the drive cylinder is hinged to the second end of the lower jaw, the driving end of the drive cylinder is hinged to the first end of the upper jaw, and the second end of the upper jaw is provided with a second clamping part.

[0043] The drive cylinder is configured to drive the second clamping part to rotate and abut against the first clamping part to clamp the adhesive film to be removed;

[0044] The drive cylinder is also configured to drive the second clamping part to rotate in the opposite direction and away from the first clamping part in order to release the torn adhesive film.

[0045] By driving the second clamping part to rotate and abut against the first clamping part through the driving cylinder, the adhesive film to be torn is clamped, so that the upper and lower clamping jaws have a large opening angle, ensuring that the adhesive film to be torn can be accurately clamped during continuous automatic production; moreover, the clamping method in which the upper clamping jaw rotates relative to the lower clamping jaw, due to the arc movement of the second clamping part, can compensate for the error of the clamping component moving closer to the partition in the second horizontal direction, shorten the stroke of the clamping component moving closer to the partition in the second horizontal direction, and improve the film tearing efficiency.

[0046] Optionally, the first drive assembly includes a first motor, a first pulley, a second pulley, and a transmission belt, wherein:

[0047] The first pulley and the second pulley are rotatably mounted on the frame at intervals along the first horizontal direction. The transmission belt is sleeved on the first pulley and the second pulley. The first transverse seat is fixedly mounted on one side of the belt body of the transmission belt.

[0048] The fixed end of the first motor is mounted on the frame, and the rotating shaft of the first motor is connected to the first pulley for transmission. The first motor is configured to drive the first pulley to rotate, and drive the transmission belt to rotate through the second pulley, thereby driving the first transverse seat to reciprocate along the first horizontal direction.

[0049] The first motor drives the first pulley to rotate, which in turn drives the transmission belt to rotate through the cooperation of the second pulley, thereby driving the first transverse seat to reciprocate along the first horizontal direction. This provides a first drive assembly with a compact structure, high drive efficiency, high drive precision, and low noise.

[0050] Optionally, the second drive assembly includes a second motor, a ball screw, a screw nut, and a lifting seat, wherein:

[0051] The lifting seat is movably mounted on the second transverse seat, and the clamping component is mounted on the lifting seat;

[0052] The ball screw is vertically mounted on the second transverse seat and can rotate along its own axis. The screw nut is sleeved on the ball screw and is fixedly connected to the lifting seat.

[0053] The fixed end of the second motor is mounted on the second transverse support, and the rotating shaft of the second motor is connected to the ball screw drive. The second motor is configured to drive the ball screw to rotate along its own axis.

[0054] The second motor drives the ball screw to rotate, thereby raising and lowering the screw nut, which in turn raises and lowers the lifting seat.

[0055] By driving the ball screw to rotate via a second motor, the screw nut sleeved on the ball screw is raised and lowered, thereby raising and lowering the lifting seat. This provides a second drive component with high driving precision, high driving efficiency, good stability and long service life. Attached Figure Description

[0056] Figure 1 This is a three-dimensional structural schematic diagram of the film-peeling mechanism for battery cells provided in the embodiments of this application;

[0057] Figure 2 This is a three-dimensional structural schematic diagram of the first driving component and the clamping component of the film-tearing mechanism for battery cells provided in the embodiments of this application;

[0058] Figure 3 This is a three-dimensional structural schematic diagram of the guide assembly for the film-tearing mechanism of the battery cell provided in an embodiment of this application;

[0059] Figure 4 This is a schematic diagram of the cooperation state of the guide assembly of the film-tearing mechanism for battery cells provided in the embodiments of this application, showing the track and a set of limiting wheels.

[0060] Figure 5 This is a schematic diagram showing the cooperation state of the track and rotating wheel of the guide assembly of the film-tearing mechanism for battery cells provided in the embodiments of this application;

[0061] Figure 6 This is a three-dimensional structural schematic diagram of the clamping component of the film-tearing mechanism for battery cells provided in the embodiments of this application.

[0062] Figures 1 to 6 The following reference numerals are included:

[0063] Rack 10;

[0064] First drive assembly 20: First motor 21, first pulley 22, second pulley 23, transmission belt 24;

[0065] First transverse sliding seat 30: First sliding guide pair 31, second sliding guide pair 32;

[0066] Clamping assembly 40: Second drive assembly 41, second motor 410, ball screw 411, screw nut 412, lifting seat 413, clamping part 42, drive cylinder 420, upper jaw 421, second clamping part 4210, lower jaw 422, first clamping part 4220;

[0067] Second transverse sliding seat 50; Third sliding guide pair 51;

[0068] Guide component 60: track plate 61, track groove 610, first straight segment 6100, inclined segment 6101, second straight segment 6102, limit wheel 62, track 63, rotating wheel 64, arc-shaped protrusion 640. Detailed Implementation

[0069] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, this application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0070] A battery cell module is formed by stacking multiple battery cells. Spacers are placed between adjacent battery cells to protect each battery cell. The spacers are usually attached to the battery cells with adhesive. In order to protect the adhesive on the surface of the spacers, release paper is usually attached to the surface of the spacers. Therefore, before attaching the spacers to the battery cells, the release paper on the surface of the spacers needs to be removed by a film-removing mechanism.

[0071] To avoid the conveying path of the release liner, existing film-tearing mechanisms typically employ two sets of horizontal sliding components (usually an X-axis horizontal sliding component and a Y-axis horizontal sliding component). The X-axis horizontal sliding component moves the film-tearing gripper closer to the release liner and clamps the tearing end of the release paper. The Y-axis horizontal sliding component moves the film-tearing gripper and the clamped release paper relative to the release liner along the length of the release paper to complete the film-tearing action. However, this results in a complex overall structure and a large footprint for the film-tearing mechanism.

[0072] Therefore, this application proposes a film-peeling mechanism for battery cells. Please refer to [link / reference]. Figure 1 and Figure 2 As shown, an embodiment of this application provides a film-tearing mechanism for battery cells, comprising a frame 10, a first drive assembly 20, a first transverse shifter 30, a clamping assembly 40, a second transverse shifter 50, and a guide assembly 60, wherein: the first drive assembly 20 is mounted on the frame 10, and the first transverse shifter 30 can move along a first horizontal direction ( Figure 1 The first drive assembly 20 is reciprocatingly mounted on the frame 10 in the X direction. The drive end of the first drive assembly 20 is connected to the first transverse slide 30. The first drive assembly 20 is configured to drive the first transverse slide 30 to reciprocate along the first horizontal direction. The second transverse slide 50 can reciprocate along the second horizontal direction. Figure 1The guide assembly 60 is reciprocatingly mounted on the first transverse seat 30 (in the Y direction). The guide assembly 60 is configured to drive the first transverse seat 30 to move along the first horizontal direction while the first drive assembly 20 drives the first transverse seat 30 to move along the second horizontal direction, so that the second transverse seat 50 moves closer to or further away from the diaphragm in the second horizontal direction. The first horizontal direction is perpendicular to the second horizontal direction. The clamping assembly 40 is mounted on the second transverse seat 50 and is configured to clamp or release the adhesive film of the diaphragm. The first drive assembly 20, in cooperation with the guide assembly 60, drives the clamping assembly 40 to move to the film-tearing station so as to clamp the adhesive film to be peeled off on the diaphragm by the clamping assembly 40. The first drive assembly 20, in cooperation with the guide assembly 60, drives the clamping assembly 40 and the adhesive film clamped by the clamping assembly 40 to move to the release station so as to peel off the adhesive film of the diaphragm by the clamping assembly 40 and release the peeled adhesive film.

[0073] Specifically, a first sliding guide pair 31 is provided between the first transverse seat 30 and the second transverse seat 50. The first sliding guide pair 31 includes a first slider and a first guide rail. The first slider is fixedly installed on the first transverse seat 30, and the first guide rail is fixedly installed on the first transverse seat 30 along the second horizontal direction. The first slider is slidably fitted on the first guide rail to ensure the smoothness of the second transverse seat 50 sliding on the first transverse seat 30 along the second horizontal direction.

[0074] The film-tearing mechanism for battery cells proposed in this application, through the cooperation of the first driving component 20, the first horizontal sliding seat 30, the second horizontal sliding seat 50, and the guide component 60, enables the driving clamping component 40 to move along the first horizontal direction while simultaneously moving closer to or further away from the separator along the second horizontal direction. This allows the clamping component 40 to hold the adhesive film to be removed from the separator, and then automatically release it after the clamped adhesive film is removed. Compared to existing mechanisms that use two sets of horizontal sliding components, this application only requires one first driving component 20 to drive the clamping component 40 to move closer to or further away from the separator along both the first and second horizontal directions. This simplifies the overall structure of the film-tearing mechanism, reduces space requirements, and facilitates later maintenance and repair.

[0075] Please see Figure 1 and Figure 3As shown, in one embodiment, the guide assembly 60 includes a track plate 61 and a limiting wheel 62, wherein: the track plate 61 is fixedly mounted on the frame 10, and a track groove 610 is formed on the track plate 61; the limiting wheel 62 is rotatably mounted on the second transverse seat 50, and the limiting wheel 62 is inserted into the track groove 610; the track groove 610 includes a first straight segment 6100 and an inclined segment 6101 that are interconnected; the first straight segment 6100 extends along a first horizontal direction, and the inclined segment 6101 is inclined toward the clamping assembly 40; the first straight segment 6100 is connected to the end of the inclined segment 6101 away from the clamping assembly 40; when the clamping assembly 40 is located at the film-tearing station, the limiting wheel 62 is located at the end of the inclined segment 6101 close to the clamping assembly 40; when the clamping assembly 40 is located at the release station, the limiting wheel 62 is located at the end of the first straight segment 6100 away from the inclined segment 6101.

[0076] Specifically, a waste bin is located directly below the release station. After the clamping component 40 releases the torn adhesive film at the release station, the adhesive film automatically falls into the waste bin.

[0077] By setting a first straight segment 6100 and an inclined segment 6101 that are inclined toward the clamping assembly 40 in the track groove 610 on the track plate 61, and inserting the limiting wheel 62 connected to the second transverse seat 50 into the track groove 610, the first transverse seat 30 moves along the first horizontal direction while driving the second transverse seat 50 to move closer to or away from the partition along the second horizontal direction. This provides a guide assembly 60 with precise guidance control, stable and reliable operation and long service life.

[0078] In one embodiment, the track groove 610 further includes a second straight segment 6102 extending along a first horizontal direction. The second straight segment 6102 is connected to one end of the inclined segment 6101 near the clamping assembly 40. When the clamping assembly 40 is located at the film-tearing station, the limiting wheel 62 is located within the second straight segment.

[0079] By setting a second straight section 6102 in the track groove 610 that is connected to one end of the inclined section 6101 near the clamping component 40, the flexibility of the clamping component 40 is improved. The position of the clamping component 40 relative to the partition at the film tearing station can be adjusted by the first drive component 20 to adapt to partitions of different sizes. Furthermore, the position of the clamping component 40 can be corrected when the partition position is inaccurate, thus preventing the clamping component 40 from spinning idly.

[0080] Please see Figure 1 and Figure 4As shown, in one embodiment, the guide assembly 60 includes a track 63 and a set of limiting wheels 62, wherein: the track 63 is fixedly mounted on the frame 10 extending along a first horizontal direction; the limiting wheels 62 are rotatably mounted on a second transverse seat 50, and each set of limiting wheels 62 includes two limiting wheels 62, which are respectively attached to the two side walls of the track 63; the track 63 includes a first straight segment 6100 and an inclined segment 6101 connected to each other, the first straight segment 6100 is parallel to the second transverse seat 50, the inclined segment 6101 is inclined toward the clamping assembly 40, and the first straight segment 6100 connects to the end of the inclined segment 6101 away from the clamping assembly 40; when the clamping assembly 40 is located at the film-tearing station, the limiting wheels 62 are located at the end of the inclined segment 6101 close to the clamping assembly 40; when the clamping assembly 40 is located at the release station, the limiting wheels 62 are located at the end of the first straight segment 6100 away from the inclined segment 6101.

[0081] Specifically, the track 63 also includes a second straight segment 6102 extending along the first horizontal direction. The second straight segment 6102 is connected to one end of the inclined segment 6101 near the clamping assembly 40. When the clamping assembly 40 is located at the film-tearing station, the limiting wheel 62 is located within the second straight segment.

[0082] By cooperating with the track 63 and a set of limiting wheels 62, and by setting the track 63 to include a first straight section 6100 and an inclined section 6101 that is inclined toward the clamping assembly 40, the first transverse seat 30 moves along the first horizontal direction while driving the second transverse seat 50 to move closer to or away from the partition along the second horizontal direction. This provides another type of guide assembly 60 with precise guidance control, stable and reliable operation and long service life.

[0083] Please see Figure 1 and Figure 5 As shown, in one embodiment, the guide assembly 60 includes a track 63 and a rotating wheel 64, wherein: the track 63 is fixedly mounted on the frame 10 extending along a first horizontal direction; the rotating wheel 64 is rotatably mounted on a second transverse seat 50, and two arc-shaped protrusions 640 are spaced apart on the side of the rotating wheel 64, the two arc-shaped protrusions 640 respectively abutting against the two side walls of the track 63; the track 63 includes a first straight segment 6100 and an inclined segment 6101 connected to each other, the first straight segment 6100 is parallel to the second transverse seat 50, the inclined segment 6101 is inclined toward the clamping assembly 40, and the first straight segment 6100 connects to the end of the inclined segment 6101 away from the clamping assembly 40; when the clamping assembly 40 is located at the film-tearing station, the rotating wheel 64 is located at the end of the inclined segment 6101 close to the clamping assembly 40; when the clamping assembly 40 is located at the release station, the rotating wheel 64 is located at the end of the first straight segment 6100 away from the inclined segment 6101.

[0084] By cooperating with the track 63 and the rotating wheel 64, and by setting the track 63 to include a first straight section 6100 and an inclined section 6101 that is inclined toward the clamping assembly 40, the first transverse seat 30 moves along the first horizontal direction while driving the second transverse seat 50 to move closer to or away from the partition along the second horizontal direction. This provides another type of guide assembly 60 with precise guidance control, stable and reliable operation and long service life.

[0085] Please see Figure 1 and Figure 6 As shown, in one embodiment, the clamping assembly 40 includes a second driving assembly 41 and at least one clamping member 42, wherein: the second driving assembly 41 is mounted on the second transverse seat 50, the driving end of the second driving assembly 41 is connected to the clamping member 42, and the clamping member 42 is configured to clamp or release the adhesive film to be removed on the partition; the second driving assembly 41 is configured to drive the clamping member 42 to rise to a position flush with the adhesive film on the partition, so as to clamp the adhesive film to be removed on the partition through the clamping member 42; the second driving assembly 41 is also configured to drive the clamping member 42 and the clamped adhesive film to descend, so as to cause the adhesive film clamped by the clamping member 42 to detach from the partition.

[0086] The second driving component 41 drives the clamping member 42 to rise to a position flush with the adhesive film on the separator, and then the clamping member 42 clamps the adhesive film to be removed from the separator. The second driving component 41 drives the clamping member 42 and the clamped adhesive film to descend, thereby tearing the adhesive film off the separator. This provides a clamping component 40 that has both clamping and film tearing functions. The overall structure is simple, the film tearing efficiency is high, and the operation is stable and reliable.

[0087] In one embodiment, the clamping assembly 40 includes two clamping members 42 spaced apart along a first horizontal direction, wherein: each clamping member 42 is configured to clamp or release an adhesive film on a septum; or, the two clamping members 42 are configured to jointly clamp or release an adhesive film on a single septum.

[0088] The clamping assembly 40 is configured to include two clamping members 42. Each clamping member 42 clamps or releases the adhesive film of a small spacer, allowing the clamping assembly 40 to clamp the adhesive film of two small spacers simultaneously at a time, thereby enabling the clamping assembly 40 to tear off the adhesive film of two spacers at the same time, improving the film tearing efficiency. By having the two clamping members 42 jointly clamp or release the adhesive film on a single large spacer, the clamping assembly 40 can clamp the adhesive film on a single large spacer, thus enabling the clamping assembly 40 to adapt to spacers of different sizes and improving the compatibility of the clamping assembly 40.

[0089] In one embodiment, the clamping member 42 includes a driving cylinder 420, an upper clamping jaw 421, and a lower clamping jaw 422, wherein: a first clamping portion 4220 is provided at the first end of the lower clamping jaw 422, the middle part of the upper clamping jaw 421 is hinged to the lower clamping jaw 422, the fixed end of the driving cylinder 420 is hinged to the second end of the lower clamping jaw 422, the driving end of the driving cylinder 420 is hinged to the first end of the upper clamping jaw 421, and a second clamping portion 4210 is provided at the second end of the upper clamping jaw 421; the driving cylinder 420 is configured to drive the second clamping portion 4210 to rotate and abut against the first clamping portion 4220 to clamp the adhesive film to be peeled off; the driving cylinder 420 is also configured to drive the second clamping portion 4210 to rotate in the opposite direction and move away from the first clamping portion 4220 to release the peeled adhesive film.

[0090] By driving the second clamping part 4210 to rotate and abut against the first clamping part 4220 through the driving cylinder 420, the adhesive film to be torn is clamped, so that the upper jaw 421 and the lower jaw 422 have a large opening angle, ensuring that the adhesive film to be torn can be accurately clamped during continuous automatic production; moreover, the clamping method in which the upper jaw 421 rotates relative to the lower jaw 422, due to the arc movement of the second clamping part 4210, can compensate for the error of the clamping assembly 40 moving closer to the partition in the second horizontal direction, shorten the stroke of the clamping assembly 40 moving closer to the partition in the second horizontal direction, and improve the film tearing efficiency.

[0091] Please see Figure 1 and Figure 2 As shown, in one embodiment, the first drive assembly 20 includes a first motor 21, a first pulley 22, a second pulley 23, and a transmission belt 24, wherein: the first pulley 22 and the second pulley 23 are rotatably mounted on the frame 10 at intervals along a first horizontal direction, the transmission belt 24 is sleeved on the first pulley 22 and the second pulley 23, and the first transverse seat 30 is fixedly mounted on one side of the belt body of the transmission belt 24; the fixed end of the first motor 21 is mounted on the frame 10, the shaft of the first motor 21 is connected to the first pulley 22 for transmission, and the first motor 21 is configured to drive the first pulley 22 to rotate, thereby driving the transmission belt 24 to rotate through the second pulley 23, and thus driving the first transverse seat 30 to reciprocate along the first horizontal direction.

[0092] Specifically, a second sliding guide pair 32 is provided between the first transverse seat 30 and the frame 10. The second sliding guide pair 32 includes a second slider and a second guide rail. The second slider is fixedly installed on the first transverse seat 30, and the second guide rail is fixedly installed on the frame 10 along the first horizontal direction. The second slider is slidably fitted on the second guide rail to ensure the stability of the first transverse seat 30 sliding on the frame 10 along the first horizontal direction.

[0093] A second sliding guide pair 32 is provided between the first pulley 22 and the second pulley 23. The first transverse seat 30 can slide back and forth along the first horizontal direction through the second sliding guide pair 32. The second sliding guide pair includes a second slider and a second guide rail. The second guide rail is fixed between the first pulley 22 and the second pulley 23 along the first horizontal direction. The second slider is fixed on the first transverse seat 30 and slidably sleeved on the second guide rail.

[0094] The first motor 21 drives the first pulley 22 to rotate, and then the second pulley 23 drives the transmission belt 24 to rotate, thereby driving the first transverse seat 30 to reciprocate along the first horizontal direction. This provides a first drive assembly 20 with a compact structure, high drive efficiency, high drive precision and low noise.

[0095] Please see Figure 6 As shown, in one embodiment, the second drive assembly 41 includes a second motor 410, a ball screw 411, a screw nut 412, and a lifting seat 413, wherein: the lifting seat 413 is movably mounted on the second transverse seat 50, and the clamping member 42 is mounted on the lifting seat 413; the ball screw 411 is rotatably mounted vertically on the second transverse seat 50 along its own axis, the screw nut 412 is sleeved on the ball screw 411, and the screw nut 412 is fixedly connected to the lifting seat 413; the fixed end of the second motor 410 is mounted on the second transverse seat 50, the rotating shaft of the second motor 410 is drively connected to the ball screw 411, and the second motor 410 is configured to drive the ball screw 411 to rotate along its own axis; the second motor 410 drives the ball screw 411 to rotate, thereby driving the screw nut 412 to rise and fall, and thus driving the lifting seat 413 to rise and fall.

[0096] Specifically, a third sliding guide pair 51 is provided between the lifting seat 413 and the second transverse seat 50. The third sliding guide pair 51 includes a third slider and a third guide rail. The third guide rail extends vertically and is fixed on the second transverse seat 50. The third slider is fixed on the lifting seat 413 and slidably sleeved on the third guide rail to ensure the smoothness of the lifting seat 413 in the second transverse seat 50.

[0097] The second motor 410 drives the ball screw 411 to rotate, thereby causing the screw nut 412 sleeved on the ball screw 411 to rise and fall, and in turn causing the lifting seat 413 to rise and fall. This provides a second drive component 41 with high driving precision, high driving efficiency, good stability and long service life.

[0098] The film-peeling mechanism for battery cells provided in this application has the following advantages:

[0099] 1) By setting the guide component 60, only one set of first drive components 20 is needed to drive the clamping component 40 to approach or move away from the partition along the first horizontal direction and the second horizontal direction. Then, the clamping component 40 clamps the adhesive film to be removed on the partition and automatically releases it after the clamped adhesive film is removed. This simplifies the overall structure of the film-tearing mechanism, occupies little space, and facilitates later maintenance and repair.

[0100] 2) Three different types of guide components 60 are provided to adapt to different application scenarios and have good applicability.

[0101] 3) The clamping component 40 has both clamping and film-tearing functions, with a simple structure and high film-tearing efficiency.

[0102] 4) The clamping component 40 can remove the adhesive film of two spacers at the same time, which improves the film removal efficiency; it can also be adapted to spacers of different sizes, with good compatibility.

[0103] 5) The clamping member 42 has a large opening angle, which can accurately clamp the adhesive film to be removed; it can compensate for the error of the clamping component 40 moving close to the partition in the second horizontal direction, shorten the stroke of the clamping component 40 moving close to the partition in the second horizontal direction, and improve the film tearing efficiency.

[0104] The above embodiments merely illustrate the basic principles and characteristics of this application. This application is not limited to the above examples. Various changes and modifications can be made to this application without departing from the spirit and scope thereof, and all such changes and modifications fall within the scope of this application as claimed. The scope of protection of this application is defined by the appended claims and their equivalents.

Claims

1. A film-peeling mechanism for battery cells, characterized in that, The film-peeling mechanism for battery cells includes a frame, a first drive assembly, a first transverse slide, a clamping assembly, a second transverse slide, and a guide assembly, wherein: The first drive assembly is mounted on the frame, and the first transverse slide is mounted on the frame in a reciprocating manner along a first horizontal direction. The drive end of the first drive assembly is connected to the first transverse slide, and the first drive assembly is configured to drive the first transverse slide to reciprocate along the first horizontal direction. The second transverse seat is reciprocally mounted on the first transverse seat in a second horizontal direction. The guide assembly is configured to drive the second transverse seat to move in the second horizontal direction while the first drive assembly drives the first transverse seat to move in the first horizontal direction, so that the second transverse seat moves closer to or further away from the partition in the second horizontal direction, and the first horizontal direction is perpendicular to the second horizontal direction. The clamping assembly is mounted on the second transverse slide seat, and the clamping assembly is configured to clamp or release the adhesive film of the septum; The first driving component, in conjunction with the guiding component, drives the clamping component to move to the film-tearing station, so as to clamp the adhesive film to be peeled off on the spacer through the clamping component; The first driving component, in conjunction with the guiding component, drives the clamping component and the adhesive film held by the clamping component to move to the release station, so that the adhesive film of the spacer is torn off by the clamping component and the torn adhesive film is released.

2. The film-peeling mechanism for battery cells according to claim 1, characterized in that, The guiding assembly includes a track plate and limit wheels, wherein: The track plate is fixedly mounted on the frame, and a track groove is formed on the track plate. The limiting wheel is rotatably mounted on the second transverse seat, and the limiting wheel is inserted into the track groove. The track groove includes a first straight segment and an inclined segment that are interconnected. The first straight segment extends along the first horizontal direction, and the inclined segment is inclined toward the clamping assembly. The first straight segment is connected to the end of the inclined segment that is away from the clamping assembly. When the clamping assembly is located at the film-tearing station, the limiting wheel is located at the end of the inclined section closer to the clamping assembly; when the clamping assembly is located at the release station, the limiting wheel is located at the end of the first straight section away from the inclined section.

3. The film-peeling mechanism for battery cells according to claim 2, characterized in that, The trajectory groove also includes a second straight segment extending along the first horizontal direction. The second straight segment connects to one end of the inclined segment near the clamping assembly. When the clamping assembly is located at the film-tearing station, the limiting wheel is located within the second straight segment.

4. The film-peeling mechanism for battery cells according to claim 1, characterized in that, The guide assembly includes a track and a set of limit wheels, wherein: The track is fixedly installed on the frame, extending along a first horizontal direction; The limiting wheel is rotatably mounted on the second transverse seat. Each set of the limiting wheels includes two limiting wheels, and the two limiting wheels are respectively attached to the two side walls of the track. The track includes a first straight segment and an inclined segment connected to each other. The first straight segment is parallel to the second transverse seat, and the inclined segment is inclined toward the clamping assembly. The first straight segment connects to the end of the inclined segment away from the clamping assembly. When the clamping assembly is located at the film-tearing station, the limiting wheel is located at the end of the inclined section closer to the clamping assembly; when the clamping assembly is located at the release station, the limiting wheel is located at the end of the first straight section away from the inclined section.

5. The film-peeling mechanism for a battery cell according to claim 1, characterized in that, The guide assembly includes a track and rotating wheels, wherein: The track is fixedly installed on the frame, extending along a first horizontal direction; The rotating wheel is rotatably mounted on the second transverse seat, and two arc-shaped protrusions are spaced apart on the side of the rotating wheel, with the two arc-shaped protrusions respectively abutting against the two side walls of the track; The track includes a first straight segment and an inclined segment connected to each other. The first straight segment is parallel to the second transverse seat, and the inclined segment is inclined toward the clamping assembly. The first straight segment connects to the end of the inclined segment away from the clamping assembly. When the clamping assembly is located at the film-tearing station, the rotating wheel is located at the end of the inclined section closer to the clamping assembly; when the clamping assembly is located at the release station, the rotating wheel is located at the end of the first straight section away from the inclined section.

6. The film-peeling mechanism for a battery cell according to claim 1, characterized in that, The clamping assembly includes a second drive assembly and at least one clamping member, wherein: The second drive assembly is mounted on the second transverse support, and the drive end of the second drive assembly is connected to the clamping member, which is configured to clamp or release the adhesive film to be removed from the diaphragm. The second drive component is configured to drive the clamping member to rise to a position flush with the adhesive film on the spacer, so as to clamp the adhesive film to be removed on the spacer by the clamping member; The second drive component is further configured to drive the clamping member and the clamped adhesive film to descend, thereby causing the adhesive film clamped by the clamping member to detach from the spacer.

7. The film-peeling mechanism for a battery cell according to claim 6, characterized in that, The clamping assembly includes two clamping members, which are spaced apart along the first horizontal direction, wherein: Each of the clamping elements is configured to clamp or release the adhesive film on one of the septa; Alternatively, the two clamping members are configured to jointly clamp or release the adhesive film on a single septum.

8. The film-peeling mechanism for a battery cell according to claim 6, characterized in that, The clamping component includes a drive cylinder, an upper jaw, and a lower jaw, wherein: The lower jaw has a first clamping part at its first end, the upper jaw is hinged to the lower jaw at its middle part, the fixed end of the driving cylinder is hinged to the second end of the lower jaw, the driving end of the driving cylinder is hinged to the first end of the upper jaw, and the upper jaw has a second clamping part at its second end. The drive cylinder is configured to drive the second clamping part to rotate and abut against the first clamping part to clamp the adhesive film to be removed; The drive cylinder is also configured to drive the second clamping part to rotate in the opposite direction and away from the first clamping part in order to release the torn adhesive film.

9. The film-peeling mechanism for a battery cell according to claim 1, characterized in that, The first drive assembly includes a first motor, a first pulley, a second pulley, and a transmission belt, wherein: The first pulley and the second pulley are rotatably mounted on the frame at intervals along the first horizontal direction, the transmission belt is sleeved on the first pulley and the second pulley, and the first transverse seat is fixedly mounted on one side of the belt body of the transmission belt; The fixed end of the first motor is mounted on the frame, and the rotating shaft of the first motor is connected to the first pulley. The first motor is configured to drive the first pulley to rotate, and drive the transmission belt to rotate through the second pulley, thereby driving the first transverse seat to reciprocate along the first horizontal direction.

10. The film-peeling mechanism for a battery cell according to claim 6, characterized in that, The second drive assembly includes a second motor, a ball screw, a screw nut, and a lifting seat, wherein: The lifting seat is movably mounted on the second transverse seat, and the clamping member is mounted on the lifting seat; The ball screw is rotatably mounted vertically on the second transverse seat along its own axis, the screw nut is sleeved on the ball screw, and the screw nut is fixedly connected to the lifting seat; The fixed end of the second motor is mounted on the second transverse support, and the rotating shaft of the second motor is connected to the ball screw drive. The second motor is configured to drive the ball screw to rotate along its own axis. The second motor drives the ball screw to rotate, thereby raising and lowering the screw nut, which in turn raises and lowers the lifting seat.

Images