Protective sheet folding device
By designing a protective sheet folding device, the multi-angle folding of the protective sheet is achieved by switching between the tool holder and the folding knife, which solves the problem of insufficient folding angle of the existing device, improves the efficiency of the extreme ear insertion, and improves the production efficiency.
Patent Information
- Application Number
- CN202422337612.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-25
AI Technical Summary
The existing folding device can only fold the protective plate at a small angle, which will cause the extreme ear to be unable to fit into the adapter plate smoothly, affecting production efficiency.
A protective sheet folding device is designed, including a transverse movement mechanism, a pressing mechanism, an edge suction mechanism and a folding mechanism. By setting up a knife seat, a first folding knife and a second folding knife, the tool seat action is driven by the switching module, so that the first folding knife and the second folding knife are switched to a working folding knife, so that the side wings of the protective sheet are first bent at an acute angle, and then folded at a right angle, and the folding angle is increased.
It effectively solves the problem of insufficient folding angle of the protective sheet. The extreme ear can be placed in the adapter sheet smoothly and stably, avoiding the long connection time of the front and rear process and improving production efficiency.
Smart Images
Figure CN223171671U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of battery production equipment, in particular to a protection sheet folding device. Background Art
[0002] In the production process of a battery, it is necessary to connect a top cover pole column terminal and a battery cell tab through an adapter plate. The adapter plate, the tab and a protection sheet are stacked in sequence and fixed by ultrasonic welding. Before welding, the edge of the protection sheet needs to be folded by a folding device so that the tab can be placed between the adapter plate and the protection sheet.
[0003] However, the existing folding device can only fold the protection sheet at a small angle, resulting in the tab being unable to be smoothly placed into the adapter plate. Therefore, the time rhythm of the connection between the front and back processes is too long, affecting the production efficiency. Summary of the Utility Model
[0004] In order to overcome the deficiencies of the prior art, the utility model provides a protection sheet folding device, which can greatly increase the folding angle of the protection sheet, effectively solve the problem that the tab cannot be smoothly and stably placed into the adapter plate due to insufficient folding angle of the protection sheet, avoid the too long time rhythm of the connection between the front and back processes, and improve the production efficiency.
[0005] The technical solution adopted by the utility model to solve its technical problems is:
[0006] A protective sheet folding device, comprising: a transverse movement mechanism for conveying the protective sheet, including a base, a first bracket slidably connected to the base, a jig provided on the first bracket, and a first power member for driving the first bracket to translate, wherein the jig is used for supporting and limiting the protective sheet; a pressing mechanism for pressing the body of the protective sheet, including a second bracket, a pressing block and a second power member, the second bracket is fixed on one side of the base, the second power member is provided on the second bracket, and the second power member is used for driving the pressing block to approach or move away from the top of the jig; a side suction mechanism for sucking the two side wings of the protective sheet, including a first lifting frame, at least two suction attachments provided on the first lifting frame, and a third power member for driving the first lifting frame to rise or fall, the third power member is provided on the second bracket, and the suction attachments are used for adsorbing the side wings of the protective sheet; a folding mechanism for folding the two side wings of the protective sheet, provided on the first bracket, including two folding components, the two folding components are respectively located on both sides of the jig, the folding component includes a tool holder, a first folding knife, a second folding knife, a fourth power member and a switching module, the first folding knife and the second folding knife are both provided on the tool holder, the fourth power member is used for driving the tool holder to approach or move away from the jig, the switching module is used for driving the tool holder to act so that the first folding knife and the second folding knife are switched into working folding knives, the first folding knife is used for folding the side wing of the protective sheet into an acute angle, and the second folding knife is used for folding the side wing of the protective sheet into a right angle.
[0007] As a further improvement of the above technical solution, the first folding knife is located directly above the second folding knife, the switching module includes a lifting cylinder and a second lifting frame, the lifting cylinder is installed on the first bracket, the second lifting frame is connected to the telescopic end of the lifting cylinder, the fourth power member is installed on the second lifting frame, and the lifting cylinder is used for driving the second lifting frame to rise or fall.
[0008] As a further improvement of the above technical solution, a first linear guide rail is provided between the first bracket and the second lifting frame, and the first linear guide rail is vertically arranged.
[0009] As a further improvement of the above technical solution, an upper proximity switch and a lower proximity switch are provided on the first bracket, and a contact block is provided on the second lifting frame, and the contact block is located between the upper proximity switch and the lower proximity switch.
[0010] As a further improvement of the above technical solution, the jig includes a support plate, first limit blocks arranged on both sides of the support plate, second limit blocks located on the other two sides of the support plate, and a fifth power member for driving the two second limit blocks to approach or move away from each other. The support plate is used to support the protection sheet. The first limit block is provided with a clearance opening for the first folding knife to insert. The moving direction of the second limit block is perpendicular to the moving direction of the tool holder.
[0011] As a further improvement of the above technical solution, a fixing block is arranged in the middle of the support plate. Two placement stations for accommodating the protection sheet are formed between the two second limit blocks and the fixing block.
[0012] As a further improvement of the above technical solution, the number of the pressing blocks and the second power members is two. The second power member is a first air cylinder. A vertical plate is arranged on the second support. The two first air cylinders are respectively installed on both sides of the vertical plate through a first fixing frame. The first air cylinders are arranged vertically. The two pressing blocks are respectively arranged at the telescopic ends of the two first air cylinders. The two pressing blocks respectively correspond to the two placement stations.
[0013] As a further improvement of the above technical solution, the third power member is a second air cylinder. The second air cylinder is installed on the top of the vertical plate through a second fixing frame. The second air cylinder is arranged vertically. The first lifting frame is arranged at the telescopic end of the second air cylinder. At least four suction members are arranged on the first lifting frame. The four suction members are respectively used for sucking the two side wings of the two protection sheets.
[0014] As a further improvement of the above technical solution, a second linear guide rail is arranged between the vertical plate and the first lifting frame. The second linear guide rail is arranged vertically.
[0015] As a further improvement of the above technical solution, the first power member is a linear module. The linear module is arranged on the base. The output end of the linear module is provided with a bottom plate. Two first supports are arranged on the bottom plate. The two first supports are arranged side by side along the moving direction of the linear module. There are two pressing mechanisms and two edge-sucking mechanisms. The two second supports are respectively arranged on both sides of the base and at both ends of the linear module.
[0016] The beneficial effects of the present utility model are as follows: The present utility model provides a protective sheet folding device. By setting a tool holder, a first folding knife, a second folding knife, and a switching module, the switching module drives the tool holder to act so that the first folding knife and the second folding knife are switched to working folding knives. First, the first folding knife is used to bend the side wings of the protective sheet into an acute angle, and then the second folding knife is used to bend the side wings of the protective sheet into a right angle. Thus, the folding angle of the protective sheet can be greatly increased, effectively solving the problem that the folding angle of the protective sheet is not enough, resulting in the ear tab being unable to be smoothly and stably placed into the adapter sheet, avoiding the long time rhythm of the connection between the front and back processes, and improving the production efficiency. Brief Description of the Drawings
[0017] The present utility model will be further described below in conjunction with the drawings and embodiments.
[0018] Figure 1 is a schematic structural diagram of a protective sheet folding device according to an embodiment of the present utility model;
[0019] Figure 2 is Figure 1 the front view of
[0020] Figure 3 is Figure 1 the combined view of the fixture and the edge folding mechanism in
[0021] Figure 4 is Figure 3 the schematic structural diagram of the fixture in
[0022] Figure 5 is Figure 3 the schematic structural diagram of the bending assembly in
[0023] Figure 6 is Figure 1 the combined view of the pressing mechanism and the edge sucking mechanism in
[0024] Reference numerals: 1 - transverse movement mechanism, 11 - base, 12 - first bracket, 13 - fixture, 14 - first power member, 15 - bottom plate, 131 - support plate, 132 - first limit block, 133 - second limit block, 134 - fifth power member, 135 - fixed block;
[0025] 2 - pressing mechanism, 21 - second bracket, 22 - pressing block, 23 - second power member, 24 - vertical plate, 25 - first fixing frame;
[0026] 3 - edge sucking mechanism, 3! - first lifting frame, 32 - sucking accessory, 33 - third power member, 34 - second fixing frame, 35 - second linear guide;
[0027] 4-Folding mechanism, 41 - Bending assembly, 411 - Tool holder, 412 - First folding knife, 413 - Second folding knife, 414 - Fourth power member, 415 - Switching module, 4151 - Lifting cylinder, 4152 - Second lifting frame, 4153 - First linear guide, 4154 - Upper proximity switch, 4155 - Lower proximity switch, 4156 - Contact block. Detailed implementation mode
[0028] The following will clearly and completely describe the concept, specific structure and technical effects generated by the present utility model in combination with the embodiments and drawings, so as to fully understand the purpose, features and effects of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, other embodiments obtained by those skilled in the art without creative efforts shall fall within the scope of protection of the present utility model. In addition, all connection / connection relationships involved in the patent do not simply refer to the direct connection of components, but refer to the more optimal connection structure that can be formed by adding or reducing connection accessories according to specific implementation situations. Each technical feature in the creation of the present utility model can be combined interactively without conflicting with each other.
[0029] Refer to Figures 1 to 6 , a protection sheet folding device provided by an example of the present utility model includes a transverse movement mechanism 1, a pressing mechanism 2, a side suction mechanism 3 and a folding mechanism 4.
[0030] Functionally, the transverse movement mechanism 1 is used to transport the protection sheet, the pressing mechanism 2 is used to press the body of the protection sheet, the side suction mechanism 3 is used to suck up the two side wings of the protection sheet, and the folding mechanism 4 is used to fold the two side wings of the protection sheet.
[0031] Structurally, the transverse movement mechanism 1 includes a base 11, a first bracket 12 slidably connected to the base 11, a jig 13 provided on the first bracket 12, and a first power member 14 for driving the first bracket 12 to translate. The jig 13 is used to support and limit the protection sheet.
[0032] Further, the pressing mechanism 2 includes a second bracket 21, a pressing block 22 and a second power member 23. The second bracket 21 is fixed on one side of the base 11, and the second power member 23 is provided on the second bracket 21. The second power member 23 is used to drive the pressing block 22 to approach or move away from the top of the jig 13.
[0033] Further, the side suction mechanism 3 includes a first lifting frame 31, at least two suction accessories 32 provided on the first lifting frame 31, and a third power member 33 for driving the first lifting frame 31 to rise or fall. The third power member 33 is provided on the second bracket 21, and the suction accessories 32 are used to adsorb the side wings of the protection sheet.
[0034] Further, the hemming mechanism 4 is arranged on the first bracket 12 and includes two bending assemblies 41. The two bending assemblies 41 are respectively located on both sides of the fixture 13. The bending assembly 41 includes a tool holder 411, a first folding knife 412, a second folding knife 413, a fourth power member 414 and a switching module 415. The first folding knife 412 and the second folding knife 413 are both arranged on the tool holder 411. The fourth power member 414 is used to drive the tool holder 411 to approach or move away from the fixture 13. The switching module 415 is used to drive the tool holder 411 to act so that the first folding knife 412 and the second folding knife 413 are switched into working folding knives. The first folding knife 412 is used to bend the side wings of the protective sheet into an acute angle, and the second folding knife 413 is used to bend the side wings of the protective sheet into a right angle.
[0035] During operation, the protective sheet is placed on the fixture 13. The first power member 14 drives the first bracket 12 to translate, thereby driving the protective sheet on the fixture to move to directly below the pressing block 22. Then, the second power member 23 drives the pressing block 22 to approach the fixture 13 and presses the body of the protective sheet. Then, the third power member 33 drives the first lifting frame 31 to descend to drive a plurality of suction attachments 32 to descend onto both side wings of the protective sheet. At the same time, the plurality of suction attachments 32 respectively suck both side wings of the protective sheet. Then, the third power member 33 drives the first lifting frame 31 to rise to drive the plurality of suction attachments 32 to rise, sucking up both side wings of the protective sheet. Then, the switching module 415 drives the tool holder 411 to act so that the first folding knife 412 becomes the working folding knife. At this time, the blade of the first folding knife 412 is aligned with the side wing of the protective sheet. Then, the two fourth power members 414 respectively drive the two tool holders 411 to approach the fixture 13, thereby driving the two first folding knives 412 to fold both side wings of the protective sheet into an acute angle. Then, the fourth power member 414 drives the tool holder 411 to move away from the fixture 13. Then, the switching module 415 drives the tool holder 411 to act so that the second folding knife 413 becomes the working folding knife. At this time, the blade of the second folding knife 413 is aligned with the side wing of the protective sheet. Then, the fourth power member 414 drives the tool holder 411 to approach the fixture 13, thereby driving the second folding knife 413 to fold the side wing of the protective sheet into a right angle. Thus, the folding angle of the protective sheet can be greatly increased, effectively solving the problem that the folding angle of the protective sheet is not enough, resulting in the tab not being able to be smoothly and stably placed into the adapter sheet, avoiding the long time rhythm of the connection between the front and back processes, and improving production efficiency.
[0036] In some preferred embodiments, the first folding knife 412 is located directly above the second folding knife 413. The switching module 415 includes a lifting cylinder 4151 and a second lifting frame 4152. The lifting cylinder 4151 is installed on the first bracket 12. The second lifting frame 4152 is connected to the telescopic end of the lifting cylinder 4151. The fourth power member 414 is installed on the second lifting frame 4152. The lifting cylinder 4151 is used to drive the second lifting frame 4152 to rise or descend.
[0037] Specifically, when the lifting cylinder 4151 drives the second lifting frame 4152 to rise, the knife seat 411, the first folding knife 412 and the second folding knife 413 rise at the same time, so that the second folding knife 413 can be aligned with the side of the protective sheet, while the first folding knife 412 is staggered with the protective sheet; when the lifting cylinder 4151 drives the second lifting frame 4152 to descend, the knife seat 411, the first folding knife 412 and the second folding knife 413 descend at the same time, so that the first folding knife 412 can be aligned with the side of the protective sheet, while the second folding knife 413 is staggered with the protective sheet. Therefore, the switching between the first folding knife 412 and the second folding knife 413 can be achieved by lifting and lowering the knife seat 411, which is easy to achieve. At the same time, the lifting cylinder 4151 is located on the inner side of the first bracket 12, which can facilitate the arrangement of parts and make the structure compact.
[0038] Furthermore, a first linear guide rail 4153 is arranged between the first bracket 12 and the second lifting frame 4152. The first linear guide rail 4153 is arranged vertically, thereby improving the stability of the lifting frame during movement and ensuring that the first folding knife 412 or the second folding knife 413 can be accurately aligned with the side wings of the protective sheet.
[0039] Furthermore, an upper proximity switch 4154 and a lower proximity switch 4155 are provided on the first bracket 12 , and a contact block 4156 is provided on the second lifting frame 4152 . The contact block 4156 is located between the upper proximity switch 4154 and the lower proximity switch 4155 .
[0040] It can be understood that when the lifting cylinder 4151 drives the second lifting frame 4152 to rise, the second lifting frame 4152 drives the contact block 4156 to rise, and when the contact block 4156 abuts against the upper proximity switch 4154, the upper proximity switch 4154 transmits a signal to the lifting cylinder 4151, and the lifting cylinder 4151 stops moving; when the lifting cylinder 4151 drives the second lifting frame 4152 to descend, the second lifting frame 4152 drives the contact block 4156 to descend, and when the contact block 4156 abuts against the lower proximity switch 4155, the lower proximity switch 4155 transmits a signal to the lifting cylinder 4151, and the lifting cylinder 4151 stops moving, thereby ensuring the accuracy of the stroke of the lifting cylinder 4151, and then ensuring the accuracy of the positions of the first folding knife 412 and the second folding knife 413.
[0041] In some preferred embodiments, the jig 13 includes a support plate 131, a first limit block 132 arranged on both sides of the support plate 131, a second limit block 133 located on the other two sides of the support plate 131, and a fifth power member 134 for driving the two second limit blocks 133 to move closer to or away from each other. The support plate 131 is used to support the protective sheet, the first limit block 132 is provided with an airtight opening for accommodating the insertion of the first folding knife 412, and the moving direction of the second limit block 133 is perpendicular to the moving direction of the knife holder 411.
[0042] It can be understood that when the protection sheet is placed on the support plate 131, the first limit blocks 132 on both sides of the support plate 131 limit both sides of the protection sheet. Then, the fifth power member 134 drives the two second limit blocks 133 to approach each other, so that the two second limit blocks 133 respectively limit the other two sides of the protection sheet. Thus, the displacement of the protection sheet can be prevented, and the folding accuracy of the two wings of the protection sheet can be ensured.
[0043] Specifically, the fifth power member 134 is a finger cylinder, and the finger cylinder can drive the two second limit blocks 133 to approach or move away from each other simultaneously, so that the cost of the equipment can be reduced and the overall structure can be made compact.
[0044] In some preferred embodiments, a fixing block 135 is provided in the middle of the support plate 131. Two placement stations for accommodating the protection sheet are formed between the two second limit blocks 133 and the fixing block 135. One side of the fixing block 135 can limit the side of the protection sheet. When the finger cylinder drives the two second limit blocks 133 to approach each other simultaneously, the two protection sheets can be limited simultaneously. Thus, the two protection sheets can be folded simultaneously, improving the production efficiency.
[0045] Furthermore, the number of both the pressing block 22 and the second power member 23 is two. Specifically, the second power member 23 is a first cylinder. A vertical plate 24 is provided on the second bracket 21. The two first cylinders are respectively installed on both sides of the vertical plate 24 through a first fixing bracket 25. The first cylinders are vertically arranged. The two pressing blocks 22 are respectively arranged at the telescopic ends of the two first cylinders. The two first cylinders respectively drive the two pressing blocks 22 to approach or move away from the jig 13 to press or loosen the protection sheets on the two placement stations.
[0046] Furthermore, the third power member 33 is a second cylinder. The second cylinder is installed on the top of the vertical plate 24 through a second fixing bracket 34. The second cylinder is vertically arranged. A first lifting frame 31 is arranged at the telescopic end of the second cylinder. At least four suction members 32 are provided on the first lifting frame 31. The four suction members 32 are respectively used to adsorb the two wings of the two protection sheets.
[0047] It can be understood that the second cylinder drives the first lifting frame 31 to descend to drive the four suction members 32 to descend simultaneously. Then, the four suction members 32 simultaneously adsorb the two wings of the two protection sheets. Then, the second cylinder drives the first lifting frame 31 to ascend to drive the four suction members 32 to ascend simultaneously. Thus, the two wings of the two protection sheets can be lifted simultaneously.
[0048] Further, a second linear guide rail 35 is provided between the vertical plate 24 and the first lifting frame 31. The second linear guide rail 35 is vertically arranged. When the second cylinder drives the first lifting frame 31 to lift, the first lifting frame 31 moves along the length direction of the second linear guide rail 35. Thus, the stability of the first lifting frame 31 during lifting can be improved.
[0049] In some preferred embodiments, the first power member 14 is a linear module. The linear module is arranged on the base 11. The output end of the linear module is provided with a bottom plate 15. Two first brackets 12 are arranged on the bottom plate 15. The two first brackets 12 are arranged side by side along the moving direction of the linear module. There are two pressing mechanisms 2 and two edge suction mechanisms 3. The two second brackets 21 are respectively arranged on both sides of the base 11 and at both ends of the linear module.
[0050] It can be understood that by providing two first brackets 12, a jig 13 is arranged on each first bracket 12. The two jigs 13 are arranged side by side along the moving direction of the linear module. When the linear module drives the two first brackets 12 to move to the left simultaneously, the left jig 13 is located directly below the left pressing mechanism 2 and edge suction mechanism 3, and the two wings of the protective sheet on the left jig 13 are folded. At the same time, the right jig 13 is located in the middle of the base 11. The operator can place the protective sheet to be processed on the right jig 13. After the left protective sheet is processed, the linear module drives the two first brackets 12 to move to the right simultaneously, so that the right jig 13 is located directly below the right pressing mechanism 2 and edge suction mechanism 3, and the two wings of the protective sheet on the right jig 13 are folded. At the same time, the left jig is located in the middle of the base 11. The operator can take out the processed protective sheet and place the protective sheet to be processed on the left jig 13. Thus, continuous production can be achieved, and the production efficiency can be greatly improved.
[0051] The above is a specific description of the preferred embodiments of the present invention. However, the present invention is not limited to the above embodiments. Those skilled in the art can make various equivalent deformations or substitutions without departing from the spirit of the present invention. These equivalent deformations or substitutions are all included in the scope defined by the claims of this application.
Claims
1. A protective sheet folding device, characterized in that, Including: A lateral translation mechanism for conveying the protective sheet, comprising a base, a first bracket slidably connected to the base, a jig provided on the first bracket, and a first power member for driving the first bracket to translate, wherein the jig is used to support and limit the protective sheet; A pressing mechanism for pressing the body of the protective sheet, comprising a second bracket, a pressing block, and a second power member, wherein the second bracket is fixed to one side of the base, the second power member is provided on the second bracket, and the second power member is used to drive the pressing block to approach or move away from the top of the jig; An edge suction mechanism for sucking up the two side wings of the protective sheet, comprising a first lifting frame, at least two suction attachments provided on the first lifting frame, and a third power member for driving the first lifting frame to rise or fall, wherein the third power member is provided on the second bracket, and the suction attachments are used to adsorb the side wings of the protective sheet; A flanging mechanism for folding the two side wings of the protective sheet, provided on the first bracket, comprising two bending assemblies, the two bending assemblies are respectively located on both sides of the jig, the bending assembly comprises a tool holder, a first folding knife, a second folding knife, a fourth power member, and a switching module, the first folding knife and the second folding knife are both provided on the tool holder, the fourth power member is used to drive the tool holder to approach or move away from the jig, the switching module is used to drive the tool holder to act so that the first folding knife and the second folding knife are switched to working folding knives, the first folding knife is used to fold the side wing of the protective sheet into an acute angle, and the second folding knife is used to fold the side wing of the protective sheet into a right angle.
2. The folding device for the protective sheet according to claim 1, characterized in that, The first folding knife is located directly above the second folding knife, the switching module comprises a lifting cylinder and a second lifting frame, the lifting cylinder is installed on the first bracket, the second lifting frame is connected to the telescopic end of the lifting cylinder, the fourth power member is installed on the second lifting frame, and the lifting cylinder is used to drive the second lifting frame to rise or fall.
3. The folding device for the protective sheet according to claim 2, wherein, A first linear guide is provided between the first bracket and the second lifting frame, and the first linear guide is vertically arranged.
4. The folding device for the protection sheet according to claim 2, characterized in that, An upper proximity switch and a lower proximity switch are provided on the first bracket, and a contact block is provided on the second lifting frame, and the contact block is located between the upper proximity switch and the lower proximity switch.
5. A protective sheet folding device according to claim 1, characterized in that The jig comprises a support plate, first limit blocks provided on both sides of the support plate, second limit blocks located on the other two sides of the support plate, and a fifth power member for driving the two second limit blocks to approach or move away from each other, the support plate is used to support the protective sheet, the first limit block is provided with a clearance opening for inserting the first folding knife, and the moving direction of the second limit block is perpendicular to the moving direction of the tool holder.
6. The folding device for the protective sheet according to claim 5, characterized in that, A fixing block is provided in the middle of the support plate, and two placing stations for accommodating the protective sheet are formed between the two second limit blocks and the fixing block.
7. The folding device for the protective sheet according to claim 6, wherein, The number of the briquettes and the second power components is two. The second power component is a first air cylinder. A vertical plate is arranged on the second support. The two first air cylinders are respectively installed on both sides of the vertical plate through a first fixing frame. The first air cylinders are vertically arranged. The two briquettes are respectively arranged at the telescopic ends of the two first air cylinders. The two briquettes respectively correspond to the two placing stations.
8. A protecting sheet folding device according to claim 7, characterized in that, The third power component is a second air cylinder. The second air cylinder is installed on the top of the vertical plate through a second fixing frame. The second air cylinder is vertically arranged. The first lifting frame is arranged at the telescopic end of the second air cylinder. At least four suction accessories are arranged on the first lifting frame. The four suction accessories are respectively used for sucking the two side wings of the two protection sheets.
9. The folding device for the protection sheet according to claim 8, wherein, A second linear guide rail is arranged between the vertical plate and the first lifting frame. The second linear guide rail is vertically arranged.
10. The folding device for a protective sheet according to claim 1, characterized in that, The first power component is a linear module. The linear module is arranged on the base. The output end of the linear module is provided with a bottom plate. Two first supports are arranged on the bottom plate. The two first supports are arranged side by side along the moving direction of the linear module. There are two pressing mechanisms and two edge-sucking mechanisms. The two second supports are respectively arranged on both sides of the base and at both ends of the linear module.