Double-station square battery automatic film pasting mechanism

Abstract

The utility model discloses a double-station square battery automatic film pasting mechanism which comprises a film pasting front positioning assembly, a feeding assembly, a film pulling assembly, a film pasting assembly, a pasting and cutting assembly and a discharging assembly which are arranged in sequence, and an unwinding assembly is located above the discharging assembly and arranged between the pasting and cutting assembly and the discharging assembly. A rotary discharging mechanical arm assembly and a film wrapping and feeding mechanical arm assembly are arranged behind the film pasting front positioning assembly and the feeding assembly respectively, a rotary material suction device of the rotary discharging mechanical arm assembly is located above the film pasting front positioning assembly, and a material taking and discharging device of the film wrapping and feeding mechanical arm assembly is located above the feeding assembly. The film coating device has the beneficial effects that the film coating effect is good, and the compatibility is good; the arrangement is compact and the space utilization rate is high; a conveying structure of the synchronous belt and the synchronous wheel is flexibly applied, so that the failure rate is reduced, and the production efficiency is improved; and the structural design that films are pasted at double stations simultaneously is adopted, so that the production efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of battery film pasting equipment, in particular to a double-station square battery automatic film pasting mechanism. Background Art

[0002] As market demand continues to grow, the application of power batteries is expanding. Besides being widely used in energy storage systems such as hydropower, thermal power, wind power, and solar power plants, power batteries are also widely used in transportation vehicles such as electric bicycles, electric motorcycles, and electric vehicles. They also play a vital role in high-end fields such as military equipment and aerospace.

[0003] As demand for power batteries continues to grow, production equipment has undergone numerous technological innovations, becoming increasingly sophisticated. However, the equipment used to apply film to battery cells during battery production suffers from poor space utilization and a limited, compact layout, resulting in a large footprint and high costs. Utility Model Content

[0004] (1) Problems to be solved

[0005] The technical problem to be solved by the utility model is to provide a double-station square battery automatic film-sticking mechanism in response to the current status of the existing technology.

[0006] (2) Technical solution

[0007] The present invention is achieved through the following technical solution: The present invention proposes a dual-station automatic film laminating mechanism for square batteries, comprising a pre-film laminating positioning assembly, a feeding assembly, a film pulling assembly, a film laminating assembly, a laminating and cutting assembly, and a discharge assembly, which are sequentially arranged. The unwinding assembly is located above the discharge assembly and disposed between the laminating and cutting assembly and the discharge assembly. A rotary unloading manipulator assembly and a film coating loading manipulator assembly are respectively disposed behind the pre-film laminating positioning assembly and the feeding assembly. The rotary suction device of the rotary unloading manipulator assembly is located above the pre-film laminating positioning assembly, and the material taking and unloading device of the film coating loading manipulator assembly is located above the feeding assembly.

[0008] Furthermore, the rotary unloading robot assembly includes a fixed base. A first linear module is mounted on the side of the fixed base facing the pre-filming positioning assembly. This first linear module is equipped with a servo motor and an embedded module. Connected to the embedded module is a rotary suction device, which is equipped with two sets of rotating cylinders for rotating the battery cells and a suction rod assembly for sucking the cells. The fixed base includes a profile angle seat and low-cost 4080 profile. During unloading, the first linear module drives the embedded module downward, which in turn drives the rotary suction device downward. When the battery cell reaches the pre-filming positioning assembly, the suction rod assembly releases the cell.

[0009] Furthermore, the pre-film-applying positioning assembly includes a first screw module, slidably mounted on a positioning baseplate. A second servo motor is connected to the first screw module. Two positioning platforms are mounted on the positioning baseplate, each equipped with an X- and Y-direction limit block, an X-, and a Y-direction positioning cylinder. The X- and Y-direction positioning cylinders are used to adjust the battery cells and secure them in a set position.

[0010] Furthermore, the coating loading robot assembly includes a fixed base frame, and a second screw module for driving the picking and unloading device to move horizontally is installed on the side of the fixed base frame facing the feeding assembly. The second screw module is connected to a servo motor three, and the two sets of picking and unloading devices are slidably connected to the second screw module. The picking and unloading device is provided with a suction rod assembly two and a Z-direction motion cylinder for controlling the up and down movement of the suction rod assembly two. The fixed base frame includes a profile angle seat and a low-cost 4080 profile. When picking and unloading, the second screw module drives the picking and unloading device to the top of the battery cell or the feeding assembly. Then the Z-direction motion cylinder controls the lifting and lowering movement of the suction rod assembly two, and the suction rod assembly two releases or adsorbs the battery cell to complete the transfer of the battery cell.

[0011] Furthermore, the feeding assembly includes a screw assembly 1 and two sets of positioning piezoelectric core devices connected to the screw assembly 1. The positioning piezoelectric core device includes a positioning pressure base plate, on which a piezoelectric core lifting cylinder and a Y-axis adjustment cylinder are installed. The piezoelectric core lifting cylinder is connected to a cell pressure plate driven up and down by the piezoelectric core lifting cylinder. A cell support plate connected to the positioning pressure base plate is installed between the cell pressure plate and the positioning pressure base plate. After the film-coating feeding robot assembly places the cell on the positioning piezoelectric core device, the Y-axis adjustment cylinder performs fine position adjustment, and the piezoelectric core lifting cylinder drives the cell pressure plate to move up and down, pressing and locking the cell. After that, the positioning piezoelectric core device is transported to one end close to the film-pulling assembly by the screw assembly 1.

[0012] Furthermore, the film-pulling assembly includes a third screw module and two sets of finger cylinders driven by the third screw module. The third screw module is connected to a servo motor 4. The finger cylinders are used to clamp the film pulled from the laminating and cutting assembly and are driven downward by the screw module to pull the film to the specified length.

[0013] Furthermore, the film laminating assembly includes a film laminating base, mounted on which is a second screw assembly driven by a discharge cylinder. Two sets of battery cell film laminating devices are connected to the second screw assembly. The battery cell film laminating device comprises an adjustment device, a timing belt, and a dual-roller structure positioned above the timing belt. During film laminating, the feed assembly drives the battery cell so that the rear end of the cell contacts the film for lamination. The feed assembly then continues to transport the battery cell toward the film laminating assembly. Simultaneously, the film-clamping assembly and the laminating and cutting assembly, which clamp the film, move toward each other, pushing the rear end of the cell and the film through the gap between the timing belt mechanism and the dual-roller structure. The film is then pressed against the cell by the timing belt and the rolling of the dual-roller structure. The film is then cut by the laminating and cutting assembly, completing the film laminating process. The discharge cylinder delivers the cell to the discharge position, where it is conveyed away from the assembly by the timing belt. The structure is elegant and simple, with a low failure rate.

[0014] Furthermore, the unwinding assembly includes a support frame, on which a manual tension controller, two sets of film frames, and a film-discharging guide shaft are installed. The film frame is equipped with a guide roller, a gravity roller, and a magnetic damper with a brake.

[0015] Furthermore, the laminating and cutting assembly is mounted and connected to the support frame. The laminating and cutting assembly includes a cutting mounting plate, a cutting drive device arranged on the cutting mounting plate, and a cutter device located below the film outlet guide shaft 1. The cutting drive device includes a servo motor with a brake and a rack and pinion mechanism. The cutter device includes a film feeding cylinder, a film outlet guide shaft 2, a film clamping cylinder, a cutter cylinder for driving the cutter to perform the cutting action, a rear cutter, a front cutter, and a film-wrapped film clamping plate. The cutting drive device is used to drive the cutter device to move up and down. During operation, the unwinding assembly drives the film to rotate and unwind, and with the assistance of the gravity roller and the guide roller, the film passes through the laminating and cutting assembly. The film feeding cylinder of the laminating and cutting assembly pulls the film out to a length that the film pulling mechanism can pull the tail of the film, so that the film is between the feeding assembly and the film laminating assembly.

[0016] Furthermore, the discharge assembly includes a second linear module, a portion of which is located below the support frame. Mounted on the second linear module is a discharge base, which in turn houses two discharge devices. The discharge devices include a clamp cylinder, a synchronous belt and pulley structure for transporting the battery cells, and X- and Y-axis limit blocks for adjusting the cell position.

[0017] (3) Beneficial effects

[0018] The present invention overcomes the limitations of space and mechanism through an ingenious layout design, and can achieve a one-out-two production mode with a low failure rate. At the same time, it is compatible with a wide range of incoming battery cells and has high space utilization and production efficiency. In addition, the present mechanism has a wide range of compatibility and is relatively low in cost. By providing positioning mechanisms before and after the battery cell film, not only is the film-sticking error effectively reduced, but the transmission error after film coating is also minimized, providing a guarantee for high-precision operation of subsequent processes. Specifically, the advantages of the present invention include: providing positioning mechanisms before and after the battery cell film to enhance the accuracy of the film coating action and improve the film coating effect; each component can be adjusted within a certain range, which improves the compatibility of the overall mechanism; each sub-mechanism is compactly arranged, with high space utilization and reduced costs; by flexibly applying the conveying structure of synchronous belts and synchronous wheels, the failure rate is reduced and production efficiency is improved; the use of a double-station design further improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0020] Figure 1 This is a three-dimensional diagram of a double-station square battery automatic film-sticking mechanism described in the utility model;

[0021] Figure 2 This is a top view of a dual-station square battery automatic film-sticking mechanism described in the present invention;

[0022] Figure 3 This is a three-dimensional diagram of a rotating unloading manipulator assembly in a dual-station square battery automatic film-laminating mechanism described in the present invention;

[0023] Figure 4 This is a three-dimensional diagram of the positioning component before film application in a dual-station square battery automatic film application mechanism described in the present invention;

[0024] Figure 5 This is a three-dimensional diagram of the film-sticking assembly in the double-station square battery automatic film-sticking mechanism described in the present invention;

[0025] Figure 6 This is a three-dimensional diagram of the film pulling component in the double-station square battery automatic film laminating mechanism described in the utility model;

[0026] Figure 7 This is a three-dimensional diagram of the film-sticking assembly in the double-station square battery automatic film-sticking mechanism described in the present invention;

[0027] Figure 8This is a three-dimensional diagram of the film-feeding manipulator assembly in the double-station square battery automatic film-laminating mechanism described in the present invention;

[0028] Figure 9 This is a partial three-dimensional diagram of a dual-station square battery automatic film-sticking mechanism described in the utility model;

[0029] Figure 10 This is a three-dimensional diagram of the discharge assembly in the double-station square battery automatic film-laminating mechanism described in the present invention;

[0030] The reference numerals are as follows:

[0031] 1. Rotary unloading robot assembly; 2. Pre-film laminating positioning assembly; 3. Feeding assembly; 4. Film pulling assembly; 5. Film laminating assembly; 6. Film wrapping and loading robot assembly; 7. Laminating and cutting assembly; 8. Unwinding assembly; 9. Discharging assembly; 100. Rotary suction device; 101. First linear module; 102. Servo motor 1; 103. Inline module; 104. Fixed base; 105. Rotary cylinder; 106. Suction rod assembly 1; 200. First screw module; 201. Sliding mounting positioning base plate; 202. Servo motor 2; 203, positioning and mounting platform; 204, X-axis limit block; 205, X-axis positioning cylinder; 206, Y-axis positioning cylinder; 207, Y-axis limit block; 300, screw assembly 1; 301, positioning piezoelectric core device; 302, positioning pressure base; 303, piezoelectric core lifting cylinder; 304, Y-axis adjustment cylinder; 305, cell pressure plate; 306, cell support plate; 400, third screw module; 401, finger cylinder; 402, servo motor 4; 500, film base; 501, discharge cylinder; 502 , screw assembly 2; 503, battery cell film laminating device; 504, adjustment device; 505, synchronous belt; 506, double roller structure; 600, take-up and discharge device; 601, fixed base; 602, second screw module; 603, servo motor 3; 604, suction rod assembly 2; 605, Z-direction motion cylinder; 700, cutting installation plate; 701, cutting drive device; 702, cutter device; 703, servo motor with brake; 704, gear rack mechanism; 705, film feeding cylinder; 706, film outlet guide shaft 2; 707, Film clamping cylinder; 708, cutter cylinder; 709, rear cutter; 710, front cutter; 711, rubber-coated film clamping plate; 800, support frame; 801, manual tension controller; 802, film frame; 803, film discharge guide shaft 1; 804, guide roller; 805, gravity roller; 806, magnetic damper with brake; 900, second linear module; 901, discharge base; 902, discharge device; 903, clamping cylinder; 904, synchronous belt and synchronous wheel structure; 905, X-axis direction limit block; 906, Y-axis direction limit block. DETAILED DESCRIPTION

[0032] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0033] In the description of this application, it should be understood that the terms "thickness", "up", "down", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply 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 on this application.

[0034] See also Figures 1-10 The present invention provides a technical solution: a dual-station automatic film-laminating mechanism for rectangular batteries, comprising a pre-film-laminating positioning assembly 2, a feeding assembly 3, a film-pulling assembly 4, a film-laminating assembly 5, a laminating and cutting assembly 7, and a discharge assembly 9, which are arranged in sequence. The unwinding assembly 8 is located above the discharge assembly 9 and disposed between the laminating and cutting assembly 7 and the discharge assembly 9. A rotary unloading robot assembly 1 and a film-wrapping loading robot assembly 6 are respectively disposed behind the pre-film-laminating positioning assembly 2 and the feeding assembly 3. The rotary suction device 100 of the rotary unloading robot assembly 1 is located above the pre-film-laminating positioning assembly 2, and the material taking and placing device 600 of the film-wrapping loading robot assembly 6 is located above the feeding assembly 3.

[0035] Preferably, the rotary unloading robot assembly 1 includes a fixed base 104. A first linear module 101 is installed on the side of the fixed base 104 facing the pre-film positioning assembly 2. The first linear module 101 is installed with a servo motor 102 and an embedded module 103. The embedded module 103 is connected to a rotary suction device 100. The rotary suction device 100 is provided with two sets of rotating cylinders 105 for rotating the battery cells and a suction rod assembly 106 for sucking the battery cells. The fixed base 104 includes a profile angle seat and a low-cost 4080 profile. The use of the 4080 profile reduces costs while meeting the installation strength. When unloading, the first linear module 101 drives the embedded module 103 to move downward and drives the rotary suction device 100 to descend. When the battery cell reaches the pre-film positioning assembly 2, the suction rod assembly 106 releases the battery cell. The embedded module 103 transports incoming cells to the platform of the pre-wrapping positioning assembly. Rotating cylinders 105 drive the cells in one-to-one rotation, enabling platform transfer and orientation changes for incoming cells, ensuring strong compatibility. The suction rod assembly 106 incorporates a cushioning component, ensuring a more stable and reliable cell suction effect.

[0036] Preferably, the pre-film positioning assembly 2 includes a first screw module 200, a positioning base plate 201 is slidably mounted on the first screw module 200, and a servo motor 202 is connected to the first screw module 200. Two sets of positioning installation platforms 203 are connected and mounted on the positioning base plate, and the positioning installation platforms 203 are installed with X-direction limit blocks 204, Y-direction limit blocks 207, X-direction positioning cylinders 205, and Y-direction positioning cylinders 206. The X-direction positioning cylinder 205 and the Y-direction positioning cylinder 206 are used to adjust the battery cells so that the battery cells are fixed in the set position. Among them, the first screw module 200 is used to drive the positioning installation platform 203 to the discharge position of the rotating discharge robot to pick up the material. The XY direction positioning of the battery cells is based on the adjustable X-direction limit blocks 204 and Y-direction limit blocks 207 as positioning references, and the three-axis cylinder pushes the battery cells into place, with a simple structure and good compatibility. Then, the positioned battery cell is sent to the material taking position of the film loading robot assembly 6 by the first screw module 200 .

[0037] Preferably, the film-coating loading robot assembly 6 includes a fixed base frame 601. A second screw module 602 for driving the pick-up and discharge device 600 to move horizontally is installed on the side of the fixed base frame 601 facing the feeding assembly 3. The second screw module 602 is connected to a servo motor 3 603. The two sets of pick-up and discharge devices 600 are slidably connected to the second screw module 602. The pick-up and discharge device 600 is provided with a suction rod assembly 2 604 and a Z-direction motion cylinder 605 for controlling the up and down movement of the suction rod assembly 2 604. The fixed base frame 601 includes a profile angle seat and a low-cost 4080 profile. When picking up and discharging materials, the second screw module 602 drives the pick-up and discharge device 600 to come above the battery cell or the feeding assembly 3, and sends the robot load from the positioning platform before film lamination to the platform of the feeding assembly 3. The Z-axis motion cylinder 605 controls the lifting and lowering of the second suction rod assembly 604, which then releases or absorbs the battery cell, completing the transfer. The second suction rod assembly 604 is equipped with a buffer structure, ensuring stable suction and release without damaging the battery cell surface.

[0038] Preferably, the feeding assembly 3 includes a screw assembly 300 and two sets of positioning piezoelectric core devices 301 connected to the screw assembly 300. The positioning piezoelectric core devices 301 include a positioning pressure base plate 302, on which are mounted a piezoelectric core lifting cylinder 303 and a Y-axis adjustment cylinder 304. The piezoelectric core lifting cylinder 303 is connected to a cell pressure plate 305 that is driven up and down by the piezoelectric core lifting cylinder 303. A cell support plate 306 connected to the positioning pressure base plate 302 is installed between the cell pressure plate 305 and the positioning pressure base plate 302. After the film-coating robot assembly 6 places the cell on the positioning piezoelectric cell device 301, the Y-axis adjustment cylinder 304 performs fine-tuning of the position. The piezoelectric cell lifting cylinder 303 drives the cell pressure plate 305 to move up and down, pressing and locking the cell. After this, the screw assembly 1 300 transports the positioning piezoelectric cell device 301 to one end near the film-drawing assembly 4. Specifically, the screw assembly 1 300 drives the load to the discharge position of the film-coating robot assembly 6 to pick up the material. The tail of the incoming cell then emerges a specified distance from the cell support plate 306, facilitating the connection to the subsequent film-coating process. The Y-axis adjustment cylinder 304 drives the relevant components of the piezoelectric cell to the appropriate cell pressure-bearing position according to the length of the different cells. The Z cylinder then drives the pressure plate to press the cell. The entire platform supporting and fixing the cell is cantilevered relative to the screw mechanism, reserving space for the film-drawing mechanism.

[0039] Preferably, the film-pulling assembly 4 includes a third screw module 400 and two sets of finger cylinders 401 driven by the third screw module 400. The third screw module 400 is connected to a servo motor 402. The finger cylinders 401 are used to clamp the film pulled from the laminating and cutting assembly 7 and, driven by the third screw module 400, pull the film downward to the specified length.

[0040] Preferably, the film laminating assembly 5 includes a film laminating base 500, mounted on which is a second screw assembly 502 driven by a discharge cylinder 501. Two sets of battery cell laminating devices 503 are mounted and connected to the second screw assembly 502. The battery cell laminating device 503 includes an adjustment device 504, a timing belt 505, and a dual-roller structure 506 positioned above the timing belt 505. During film laminating, the feed assembly 3 drives the battery cell so that the rear end of the cell contacts the film for laminating. The feed assembly 3 then continues to transport the battery cell toward the film laminating assembly 5. Simultaneously, the film-clamping assembly 4 and the laminating and cutting assembly 7 move toward each other, pushing the rear end of the cell, along with the film, through the gap between the timing belt mechanism and the dual-roller structure 506. Subsequently, the film is pressed against the battery cell by the timing belt 505 and the dual-roller structure 506. The laminating and cutting assembly 7 then cuts the film, completing the laminating process. The discharge cylinder 501 delivers the battery cell to the discharge position, and the battery cell is transferred away from the assembly by the synchronous belt 505. The film assembly 5 has an exquisite and simple structure and a low failure rate.

[0041] Preferably, the unwinding assembly 8 includes a support frame 800, on which are mounted a manual tension controller 801, two sets of film frames 802, and a film-discharging guide shaft 803. The film frame 802 is mounted with a guide roller 804, a gravity roller 805, and a magnetic damper 806 with a brake.

[0042] Preferably, the laminating and cutting assembly 7 is mounted and connected to the support frame 800. The laminating and cutting assembly 7 includes a cutting mounting plate 700, a cutting drive device 701 mounted on the cutting mounting plate 700, and a cutter device 702 positioned below the film discharge guide shaft 1 803. The cutting drive device 701 includes a servo motor 703 with a brake and a rack and pinion mechanism 704. The cutter device 702 includes a film feed cylinder 705, a film discharge guide shaft 2 706, a film clamping cylinder 707, a cutter cylinder 708 for driving the cutter to perform the cutting action, a rear cutter 709, a front cutter 710, and a film-wrapping and film clamping plate 711. Specifically, a magnetic damper with a brake drives the film to rotate, and the gravity roller 805 indicates that the film is exhausted when the negative limit alarm is triggered. The film can also be replaced by manually turning the handle, making operation convenient and cost-effective. The double aluminum frame ensures a sturdy and reliable structure while also reserving space for adjacent components. The cutting drive 701 drives the cutting blade 702 to move upward and downward. During operation, the unwinding assembly 8 rotates and unwinds the film. With the assistance of the gravity roller 805 and guide roller 804, the film is passed through the laminating and cutting assembly 7. The film feed cylinder 705 of the laminating and cutting assembly 7 pulls the film out to a length where the film pulling mechanism can grasp the tail of the film, placing the film between the feeding assembly 3 and the laminating assembly 5. The film then passes through the laminating and film clamping plate 711, where it is clamped by the film clamping cylinder 707 and pulled downward by the film feed cylinder 705. A rack and pinion mechanism 704, driven by a braked servo motor 703, drives the laminating and cutting mechanism in the Z direction. The cutter cylinder 708 then drives the front cutter 710 to cut the film to specification. The mechanism offers high compatibility and space efficiency.

[0043] Preferably, the discharge assembly 9 includes a second linear module 900, a portion of which is located below the support frame 800. A discharge base 901 is mounted on the second linear module 900, and two sets of discharge devices 902 are mounted on the discharge base 901. The discharge device 902 includes a clamp cylinder 903, a synchronous belt and synchronous wheel structure 904 for conveying battery cells, an X-axis limit block 905 and a Y-axis limit block 906 for adjusting the position of the battery cells. Specifically, the synchronous belt and synchronous wheel structure 904 is used to transfer the discharge battery cells of the film assembly 5 to the synchronous belt 505, and the screw module drives the load to send the battery cells to the discharge position, and then performs XY direction positioning. It can not only achieve high-efficiency transmission of the discharge battery cells, but also greatly reduce the discharge position error. The discharge assembly 9 is located between the aluminum frames of the unwinding assembly 8, making the overall structure more compact.

[0044] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A dual-station square battery automatic film-sticking mechanism, characterized in that: It includes a pre-film positioning assembly, a feeding assembly, a film pulling assembly, a film pasting assembly, a laminating and cutting assembly, and a discharging assembly arranged in sequence, the unwinding assembly is located above the discharging assembly and is arranged between the laminating and cutting assembly and the discharging assembly; a rotary unloading robot assembly and a film wrapping loading robot assembly are respectively arranged behind the pre-film pasting positioning assembly and the feeding assembly, the rotary suction device of the rotary unloading robot assembly is located above the pre-film pasting positioning assembly, and the taking and placing device of the film wrapping loading robot assembly is located above the feeding assembly.

2. The dual-station square battery automatic film-sticking mechanism according to claim 1, characterized in that: The rotary unloading robot assembly includes a fixed base, and a first linear module is installed on a side of the fixed base facing the front positioning assembly of the film laminating device, and the first linear module is installed with a servo motor 1 and an embedded module; The embedded module is connected and installed with a rotating suction device, which is provided with a rotating cylinder for rotating the battery core and a suction rod assembly for sucking the battery core.

3. The dual-station square battery automatic film-sticking mechanism according to claim 1, characterized in that: The pre-film positioning assembly includes a first screw module, a positioning base plate is slidably installed on the first screw module, and a servo motor 2 is connected and installed on the first screw module; a positioning installation platform is connected and installed on the positioning base plate, and an X-direction limit block, a Y-direction limit block, an X-direction positioning cylinder and a Y-direction positioning cylinder are installed on the positioning installation platform.

4. The dual-station square battery automatic film-sticking mechanism according to claim 1, characterized in that: The film loading robot assembly includes a fixed base frame, and a second screw module for driving the picking and unloading device to move horizontally is installed on the side of the fixed base frame facing the feeding assembly. The second screw module is connected to a servo motor three, and the picking and unloading device is slidingly connected to the second screw module; the picking and unloading device is provided with a suction rod assembly two and a Z-direction motion cylinder for controlling the up and down movement of the suction rod assembly two.

5. The dual-station square battery automatic film-sticking mechanism according to claim 1, characterized in that: The feeding assembly includes a screw assembly and a positioning piezoelectric core device connected to the screw assembly; the positioning piezoelectric core device includes a positioning pressure base plate, a piezoelectric core lifting cylinder and a Y-axis adjustment cylinder are installed on the positioning pressure base plate, the piezoelectric core lifting cylinder is connected to a cell pressure plate driven by the piezoelectric core lifting cylinder to move up and down, and a cell support plate connected to the positioning pressure base plate is installed between the cell pressure plate and the positioning pressure base plate.

6. The dual-station square battery automatic film-sticking mechanism according to claim 1, characterized in that: The film pulling assembly includes a third screw module and a finger cylinder driven by the third screw module; the third screw module is installed and connected to a servo motor four.

7. The dual-station square battery automatic film-sticking mechanism according to claim 1, characterized in that: The film sticking assembly includes a film sticking base, on which a screw assembly 2 driven by a discharge cylinder is installed, and a battery cell film sticking device is installed and connected to the screw assembly 2; the battery cell film sticking device includes an adjustment device, a synchronous belt and a double-roller structure above the synchronous belt.

8. The dual-station square battery automatic film-sticking mechanism according to claim 1, characterized in that: The unwinding assembly includes a supporting frame, on which a manual tension controller, a film frame, and a film-discharging guide shaft are installed; the film frame is equipped with a guide roller, a gravity roller, and a magnetic damper with a brake.

9. The dual-station square battery automatic film-sticking mechanism according to claim 8, characterized in that: The laminating and cutting assembly is installed and connected to the supporting frame; the laminating and cutting assembly includes a cutting mounting plate, a cutting drive device arranged on the cutting mounting plate, and a cutting device located below the film outlet guide shaft 1; the cutting drive device includes a servo motor with a brake and a gear rack mechanism; the cutting device includes a film feeding cylinder, a film outlet guide shaft 2, a film clamping cylinder, a cutting cylinder for driving the cutter to perform the cutting action, a rear cutter, a front cutter and a rubber-coated film clamping plate.

10. The dual-station square battery automatic film-sticking mechanism according to claim 9, characterized in that: The discharging assembly includes a second linear module, a part of which is located below the supporting frame; a discharging base is installed on the second linear module, and a discharging device is installed on the discharging base; the discharging device includes a clamp cylinder, a synchronous belt and synchronous wheel structure for conveying battery cells, and an X-axis limit block and a Y-axis limit block for adjusting the position of the battery cells.

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