A laminated background plate mechanism

Abstract

The utility model discloses a laminated background plate mechanism, comprising two background plate assemblies arranged symmetrically in front and back, the background plate assemblies comprising two fixed blocks arranged opposite to each other in left and right, an opening and closing plate, two connecting blocks arranged opposite to each other in left and right, and two background plates arranged opposite to each other in left and right; a space is formed between the two fixed blocks; the fixed blocks, the opening and closing plate, and the connecting block respectively have a first side and a second side opposite to each other, the second side of the opening and closing plate is connected to the first side of the two fixed blocks, the opening and closing plate can move up and down between a first moving position and a second moving position relative to the two fixed blocks, a cam follower is provided on the first side of the opening and closing plate, the second sides of the two connecting blocks are respectively rotatably connected to the first sides of the two fixed blocks, the two connecting block parts are respectively protruding from the top of the corresponding fixed blocks, and the first sides of the two connecting blocks are respectively connected to the second sides of the opening and closing plates. The utility model can ensure the accuracy of the alignment detection result and improve the production efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery production, in particular to a stacking background plate mechanism. Background Art

[0002] In the process of stacking lithium battery pole pieces to manufacture battery cells, the alignment detection of the pole pieces is a very important part, so the cooperation of each workstation is required. During the pole piece stacking process, the pause time will be minimized to increase the speed.

[0003] At present, the existing magnetic levitation lamination machine usually drives the lamination table to move along the annular groove track by means of a magnetic levitation mechanism during lamination. When the lamination table reaches the negative electrode lamination station of the groove track, the negative electrode sheet is stacked on the lamination table. When the lamination table reaches the positive electrode lamination station of the groove track, the positive electrode sheet is stacked on the negative electrode sheet. When the lamination table reaches the photographing station of the groove track, a CCD camera arranged above the photographing station is used to photograph one side of the negative electrode sheet and the positive electrode sheet, and the photographed image is output to the alignment detection system. After that, the lamination table continues to move. When the lamination table reaches the negative electrode lamination station of the groove track, the latter negative electrode sheet is stacked on the lamination table. Stacked on the previous positive electrode sheet, when the stacking platform reaches the positive electrode stacking station of the slot track, stack the next positive electrode sheet on the next negative electrode sheet, and when the stacking platform reaches the photographing station of the slot track, take pictures of the next negative electrode sheet and one side of the next positive electrode sheet through the CCD camera arranged above the photographing station and output the photographed image to the alignment detection system, and then the stacking platform continues to move and repeats the above steps until the last negative electrode sheet and the last positive electrode sheet are stacked, so that a battery cell is obtained, and then all the received images are analyzed by the alignment detection system to obtain the alignment detection result of the battery cell.

[0004] In the above detection method, after taking pictures of one side of the previous negative electrode sheet and the previous positive electrode sheet through the CCD camera, the next negative electrode sheet and the next positive electrode sheet are directly stacked on the previous positive electrode sheet in sequence, and there is no separation between the previous negative electrode sheet, the previous positive electrode sheet and the next negative electrode sheet and the next positive electrode sheet. When taking pictures of one side of the next negative electrode sheet and the next positive electrode sheet through the CCD camera, the next negative electrode sheet and the next positive electrode sheet will be disturbed by the diaphragm of the previous negative electrode sheet, resulting in unclear images obtained by taking pictures of one side of the next negative electrode sheet and the next positive electrode sheet through the CCD camera, thereby affecting the accuracy of the alignment detection results and reducing production efficiency.

[0005] Therefore, there is an urgent need for a lamination background plate mechanism that can separate the previous positive electrode sheet from the next negative electrode sheet during the lamination process to solve the above-mentioned technical problems. Utility Model Content

[0006] In order to overcome the deficiencies of the prior art, the utility model provides a lamination background plate mechanism, which can separate a front positive electrode sheet from a rear negative electrode sheet during the lamination process, thereby ensuring the accuracy of the alignment detection result and improving the production efficiency.

[0007] The technical solution adopted by the utility model to solve its technical problems is:

[0008] The utility model provides a laminated background plate mechanism, comprising two background plate components arranged symmetrically in front and back, the background plate components comprising two fixed blocks arranged opposite to each other in left and right directions, an opening and closing plate, two connecting blocks arranged opposite to each other in left and right directions, and two background plates arranged opposite to each other in left and right directions; a space is formed between the two fixed blocks; the fixed blocks, the opening and closing plate, and the connecting blocks respectively have a first side and a second side opposite to each other, the second side of the opening and closing plate is connected to the first side of the two fixed blocks, the opening and closing plate can move up and down between a first moving position and a second moving position relative to the two fixed blocks, a cam follower is provided on the first side of the opening and closing plate, the second sides of the two connecting blocks are respectively rotatably connected to the first sides of the two fixed blocks, and parts of the two connecting blocks respectively protrude from the corresponding fixed blocks The top of the two connecting blocks is respectively connected to the second side of the opening and closing plate, and the up and down movement of the opening and closing plate can drive the two connecting blocks to rotate in the direction close to or away from the space, and the two background plates are respectively connected to the top of the two connecting blocks, and the rotation of the two connecting blocks can respectively drive the two background plates to rotate between a first rotation position close to the space and a second rotation position away from the space; when the opening and closing plate is in the first moving position, the two background plates are in the first rotation position, and the two background plates are located in the same horizontal plane, and the two background plate parts protrude from the side of the two fixed blocks close to the space, and when the opening and closing plate is in the second moving position, the two background plates are located in the second rotation position, and the two background plates are in an eight-shaped shape.

[0009] As a preferred technical solution, two connecting bearings are respectively provided at the bottom ends of the first sides of the two connecting blocks, and two through grooves are respectively provided at the two ends of the second side of the opening and closing plate, the two through grooves respectively correspond to the two connecting bearings, the two through grooves are respectively inclined in the direction away from the center of the opening and closing plate, and the two through grooves are respectively matched with the two connecting bearings; when the opening and closing plate is located at the first moving position, the two connecting bearings are respectively located at the top ends of the two through grooves, and when the opening and closing plate is located at the second moving position, the two connecting bearings are respectively located at the bottom ends of the two through grooves.

[0010] As a preferred technical solution, a mounting position is provided on the first side of the fixed block, a guide column is provided in the mounting position, one end of the guide column is arranged on the inner wall of the bottom end of the mounting position, the other end of the guide column extends upward, a slider is provided on the outer periphery of the guide column, the slider can slide up and down along the guide column, and the second side of the opening and closing plate is connected to the sliders of the two fixed blocks.

[0011] As a preferred technical solution, a groove is provided on the first side of the fixed block, the two connecting blocks are respectively located in the grooves of the two fixed blocks and the second sides of the two connecting blocks are respectively rotatably connected to the bottoms of the corresponding grooves, when the opening and closing plate is located in the first moving position, there are gaps between the bottom ends of the two connecting blocks and the bottom inner walls of the corresponding grooves, and when the opening and closing plate is located in the second moving position, the bottom ends of the two connecting blocks are respectively against the bottom inner walls of the corresponding grooves.

[0012] As a preferred technical solution, a support plate is provided on the first side of the fixing block, the support plate is located below the groove, and the support plate is in contact with the second side of the opening and closing plate.

[0013] As a preferred technical solution, a first mounting hole is provided on the second side of the connecting block, a second mounting hole corresponding to the first mounting hole is provided at the bottom of the groove, the first end of the rotating shaft is fixedly disposed in the first mounting hole, and the second end of the rotating shaft is rotatably disposed in the second mounting hole.

[0014] As a preferred technical solution, a first recess is provided at the bottom of the groove, the first recess is arranged around the outer periphery of the second mounting hole, a second recess corresponding to the first recess is provided on the second side of the connecting block, the second recess is arranged around the outer periphery of the first mounting hole, and torsion springs are provided in the first recess and the second recess.

[0015] As a preferred technical solution, the bottom end of the connecting block is provided with an arc surface, and when the opening and closing plate is located at the first moving position, there is a gap between the arc surfaces of the two connecting blocks and the bottom inner walls of the corresponding grooves, and when the opening and closing plate is located at the second moving position, the arc surfaces of the two connecting blocks respectively abut against the bottom inner walls of the two grooves.

[0016] As a preferred technical solution, a mounting groove is provided on the first side of the fixing block, the mounting groove is located below the groove, the support plate is detachably arranged at the bottom of the mounting groove and the support plate partly protrudes from the first side of the fixing block.

[0017] As a preferred technical solution, a vertical block is provided on the second side of the fixed block, a mounting block is provided on a side of the vertical block away from the fixed block, and the mounting block is provided with mounting holes.

[0018] The beneficial effect of the utility model is as follows: the utility model is provided with two background plate assemblies which are symmetrically arranged front and back, and the background plate assemblies include two fixed blocks which are relatively arranged left and right, an opening and closing plate, two connecting blocks which are relatively arranged left and right, and two background plates which are relatively arranged left and right. In the actual lamination process, the cam followers of the two background plate assemblies are respectively moved along the cam grooves of the two guide rails, so that the corresponding two background plates can be driven to switch from the first rotation position to the second rotation position firstly through the opening and closing plate and the two connecting blocks, and then switch from the second rotation position to the first rotation position. The two background plates of the two background plate assemblies are switched between the first rotation position and the second rotation position, so that the rear negative electrode sheet can be separated from the front positive electrode sheet. In this way, when the rear negative electrode sheet and one side of the rear positive electrode sheet are photographed by the CCD camera, the diaphragm of the front negative electrode sheet will not interfere with the rear negative electrode sheet and the rear positive electrode sheet, so that a clear image can be obtained, and the photographing accuracy is improved. After that, after all the received images are analyzed by the alignment detection system, a relatively accurate alignment detection result can be obtained, which ensures the accuracy of the alignment detection result and improves the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is a structural schematic diagram of a lamination background plate mechanism and a lamination platform provided by an embodiment of the utility model;

[0021] Figure 2 yes Figure 1 A schematic front view of a background plate assembly located at the front of the laminated background plate mechanism;

[0022] Figure 3 yes Figure 2 A schematic structural diagram of a first angle after the two background panels of the background panel assembly located in the front are respectively rotated to the second rotation position and the opening and closing panel moves upward to the second movement position;

[0023] Figure 4 yes Figure 3 A schematic front view of the background panel assembly shown in the front;

[0024] Figure 5 yes Figure 3 A schematic structural diagram of a second angle after the two background panels of the background panel assembly located in the front are respectively rotated to the second rotation position and the opening and closing panel moves upward to the second movement position;

[0025] Figure 6 yes Figure 3 The schematic diagram of the structure of the background panel assembly at the front after removing the opening and closing plate;

[0026] Figure 7 yes Figure 3 An exploded schematic diagram of the background plate assembly shown in the front;

[0027] Figure 8 yes Figure 2 A schematic front view of a fixing block of a background plate assembly located in the front is shown;

[0028] Fig. 9 yes Figure 3 A schematic diagram of the structure in which the cam follower of the background plate assembly located in the front cooperates with the cam groove of the guide rail;

[0029] Fig.10 yes Fig. 9 Schematic diagram of the structure of the guide rail shown. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the concept, specific structure and technical effects of the utility model in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the utility model. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the creation of the utility model can be combined interchangeably without conflicting with each other.

[0031] Please refer to Figure 1 An embodiment of the utility model provides a laminated background plate mechanism, comprising two background plate components 1 which are symmetrically arranged front and back.

[0032] Combination Figures 2 to 8 As shown, the background plate assembly 1 includes two fixed blocks 10 arranged opposite to each other, an opening and closing plate 20, two connecting blocks 30 arranged opposite to each other, and two background plates 40 arranged opposite to each other. The fixed blocks 10, the opening and closing plates 20, and the connecting blocks 30 have opposite first and second sides, respectively.

[0033] A space is formed between the two fixing blocks 10. The two fixing blocks 10 of the two background plate assemblies 1 are respectively used to connect to the two ends of the laminating table 100 of the magnetic suspension laminating machine. In this embodiment, a vertical block 16 is provided on the second side of the fixing block 10. Figure 5 and Figure 7 As shown, a mounting block 17 is provided on one side of the vertical block 16 away from the fixed block 10, and the mounting block 17 is provided with a mounting hole 171, as shown in FIG. Figure 1As shown, a base is provided at the bottom end of the stacking platform 100, and two fixing plates 101 are provided at both ends of the base, respectively. The fixing plates 101 have mounting holes corresponding to the mounting holes 171. In actual application, the mounting blocks 17 of the two background plate assemblies 1 are first placed on the top of the two fixing plates 101 of the stacking platform 100, respectively, and the two ends of the stacking platform 100 are placed in the space of the two background plate assemblies 1, respectively. At this time, the two ends of the stacking platform 100 correspond to the top of the fixing blocks 10, respectively, and then fasteners such as screws are installed in the mounting holes 171 and the corresponding mounting holes, so that the mounting blocks 17 of the two background plate assemblies 1 can be connected to the two fixing plates 101 of the base, so that the two fixing blocks 10 of the two background plate assemblies 1 can be connected to the two ends of the stacking platform 100. The number of mounting holes 171 can be set according to actual conditions.

[0034] The fixing block 10, the vertical block 16 and the mounting block 17 are preferably integrally formed for ease of manufacture.

[0035] The second side of the opening and closing plate 20 is opposite to the first side of the two fixed blocks 10, and the second side of the opening and closing plate 20 is connected to the first side of the two fixed blocks 10. The opening and closing plate 20 can move up and down between the first moving position (i.e., the initial position) and the second moving position relative to the two fixed blocks 10. Specifically, a mounting position 11 is provided on the first side of the fixed block 10, and a guide column 12 is provided in the mounting position 11. One end of the guide column 12 is arranged on the inner wall of the bottom end of the mounting position 11, and the other end of the guide column 12 extends upward. A slider 13 is sleeved on the outer periphery of the guide column 12, and the slider 13 can slide up and down along the guide column 12. The second side of the opening and closing plate 20 is connected to the sliders 13 of the two fixed blocks 10.

[0036] In this embodiment, a guide post installation hole 111 is provided on the inner wall of the bottom end of the installation position 11 , and one end of the guide post 12 is disposed in the guide post installation hole 111 .

[0037] A cam follower 21 is provided on the first side of the opening and closing plate 20. The cam follower 21 is close to the bottom end of the opening and closing plate 20 and corresponds to the space. The cam followers 21 of the two background plate assemblies 1 are respectively used to cooperate with the cam grooves 201 of the two guide rails 200 of the magnetic suspension laminating machine and can move along the corresponding cam grooves 201 respectively. Fig. 9 and Fig.10 As shown, the two guide rails 200 are symmetrically arranged front to back, wherein one guide rail 200 is arranged on the inner side of the grooved track of the magnetic levitation lamination machine, and the other guide rail 200 is arranged on the outer side of the grooved track of the magnetic levitation lamination machine, one end of the cam groove 201 is the entrance end 201a, and the other end of the cam groove 201 is the exit end 201b, the entrance end 201a and the exit end 201b of the cam groove 201 are both the lowest points, and the middle of the cam groove 201 is the highest point.

[0038] The top of the opening and closing plate 20 is provided with a space 23, which extends to the first side and the second side of the opening and closing plate 20, and the space 23 corresponds to the space. The space 23 can reduce the weight of the opening and closing plate 20 and facilitate the up and down movement of the opening and closing plate 20.

[0039] The second sides of the two connecting blocks 30 are respectively rotatably connected to the first sides of the two fixing blocks 10, and the two connecting blocks 30 are partially protruded from the top of the corresponding fixing blocks 10. The two connecting blocks 30 are arranged opposite to each other on the left and right sides, and the two connecting blocks 30 can be rotated in the direction of approaching or moving away from the space relative to the corresponding fixing blocks 10. The first sides of the two connecting blocks 30 are respectively connected to the second sides of the opening and closing plates 20, and the up and down movement of the opening and closing plates 20 can drive the two connecting blocks 30 to rotate in the direction of approaching or moving away from the space.

[0040] In this embodiment, two connecting bearings 31 are respectively provided at the bottom ends of the first sides of the two connecting blocks 30. Two through slots 22 are respectively provided at both ends of the second side of the opening and closing plate 20 near the top of the opening and closing plate 20. The through slots 22 extend to the first side of the opening and closing plate 20. The two through slots 22 correspond to the two connecting bearings 31 respectively. Both through slots 22 are inclined in the direction away from the center of the closing plate 20, that is, the two through slots 22 are in an inverted eight-shaped shape. The inclination angle of the through slot 22 is preferably 60 degrees. It can be understood that the inclination angle of the through slot 60 can be set according to actual conditions. The two through slots 60 are matched with the two connecting bearings 31 respectively.

[0041] The two background plates 40 are connected to the top ends of the two connection blocks 30 respectively. The rotation of the two connection blocks 30 can drive the two background plates 40 to rotate between a first rotation position (i.e., an initial position) close to the space and a second rotation position far from the space. Figure 1 and Figure 2 As shown, the two connecting bearings 31 are respectively located at the top of the two through slots 22, the two connecting blocks 30 are both in a vertical state, and the two background plates 40 are located at the first rotation position. At this time, the two background plates 40 are located in the same horizontal plane, and the two background plates 40 are partially protruding from the side of the two fixed blocks 10 close to the space. When the opening and closing plate 20 is located at the second moving position, as shown in FIG. Figures 3 to 7As shown, the two connecting bearings 31 are respectively located at the bottom ends of the two through slots 22, and the two connecting blocks 30 are both inclined in the direction away from the space, that is, the two connecting blocks 30 are in an inverted figure eight shape, and the inclination direction of the two connecting blocks 30 is preferably the same as the inclination direction of the two through slots 22. The two background plates 40 are located in the second rotation position, at which time the two background plates 40 are in an figure eight shape and the two background plates 40 are respectively located on both sides of the space. In actual application, after the two fixing blocks 10 of the two background plate assemblies 1 are respectively connected to the two ends of the stacking platform 100, when the two background plates 40 are located in the first rotation position, the parts of the two background plates 40 protruding from the side of the corresponding fixing blocks 10 close to the space are respectively located above the stacking platform 100, as shown in FIG. Figure 1 As shown, when the two background plates 40 are located at the second rotation position, the two background plates 40 are respectively located on both sides of the lamination platform 100 .

[0042] In this embodiment, the two background plates 40 are both L-shaped, and the horizontal parts of the two background plates 40 are respectively arranged at the top of the two connecting blocks 30. When the two background plates 40 are located at the first rotation position, the vertical parts of the two background plates 40 respectively protrude from the side of the two fixed blocks 10 close to the space. In actual application, the vertical parts of the two background plates 40 are respectively located above the stacking table 100.

[0043] The second sides of the two connecting blocks 30 are rotatably connected to the first sides of the two fixed blocks 10, respectively. Specifically, the first side of the fixed block 10 is provided with a groove 14, and the two connecting blocks 30 are respectively located in the grooves 14 of the two fixed blocks 10, and the second sides of the two connecting blocks 30 are rotatably connected to the bottom of the corresponding grooves 14. When the opening and closing plate 20 is located at the first moving position, there is a gap between the bottom ends of the two connecting blocks 30 and the bottom inner walls of the corresponding grooves 14, respectively. When the opening and closing plate 20 is located at the second moving position, the bottom ends of the two connecting blocks 30 are respectively against the bottom inner walls of the corresponding grooves 14, so as to limit the two connecting blocks 30 respectively. The two connecting blocks 30 are respectively arranged in the grooves 14 of the two fixed blocks, so as to reduce the width dimension of the background plate assembly 1, thereby reducing the volume of the background plate assembly 1 and occupying less space.

[0044] In this embodiment, the second side of the connection block 30 is opposite to the bottom of the groove 14, and a first mounting hole 321 is provided on the second side of the connection block 30, and the first mounting hole 321 extends to the first side of the connection block 30. A second mounting hole 18 corresponding to the first mounting hole 321 is provided at the bottom of the groove 14, and the first end of the rotating shaft 32 is fixedly disposed in the first mounting hole 321, and the second end of the rotating shaft 32 is rotatably disposed in the second mounting hole 18, so that the rotating shaft 32 can rotate relative to the fixed block 10, and under the action of the rotating shaft 32, the connection block 30 can rotate around the axis of the rotating shaft 32. A rotating bearing 322 is provided in the second mounting hole 18, and the rotating bearing 322 is sleeved on the outer periphery of the second end of the rotating shaft 32, and the rotating bearing 322 provides support for the rotation of the rotating shaft 32.

[0045] The connecting bearing 31 and the rotating bearing 322 are both deep groove ball bearings.

[0046] A first recess 19 is provided at the bottom of the groove 14, and the first recess 19 is arranged around the outer periphery of the second mounting hole 18. A second recess corresponding to the first recess 19 is provided on the second side of the connecting block 30, and the second recess is arranged around the outer periphery of the first mounting hole 321. The first recess 19 and the second recess are adapted to a torsion spring, and a torsion spring is arranged in the first recess 19 and the second recess. When the opening and closing plate 20 is located at the first moving position, the torsion spring is in a natural state, and when the opening and closing plate 20 is located at the second moving position, the torsion spring is in a twisted state. The torsion spring is provided, and when the opening and closing plate 20 moves downward from the second moving position to the first moving position, the restoring force of the corresponding connecting block 30 is increased by the restoring elastic force of the torsion spring, so that the force of the two background plates 40 rotating from the second rotation position to the first rotation position can be increased, and the two background plates 40 can be kept in the first rotation position.

[0047] In this embodiment, the bottom end of the connection block 30 is provided with an arc surface 30a. When the opening and closing plate 20 is located at the first moving position, there is a gap between the arc surfaces 30a of the two connection blocks 30 and the bottom inner wall of the corresponding groove 14. When the opening and closing plate 20 is located at the second moving position, the arc surfaces 30a of the two connection blocks 30 are respectively against the bottom inner wall of the corresponding groove 14. The arc surface 30a can avoid damaging the bottom inner wall of the groove 14.

[0048] A support plate 15 is provided on the first side of the fixing block 10, and the support plate 15 is located below the groove 14, and the support plate 15 contacts the second side of the opening and closing plate 20. The support plate 15 provides support for the up and down movement of the opening and closing plate 20, thereby improving the stability of the movement of the opening and closing plate 20. The support plate 15 can be a wear-resistant plate.

[0049] In this embodiment, a mounting groove 151 is provided on the first side of the fixing block 10, and the mounting groove 151 is located below the groove 14. The support plate 15 is detachably provided at the bottom of the mounting groove 151, and the support plate 15 partially protrudes from the first side of the fixing block 10. The detachable manner is as follows: the support plate 15 is provided with a first hole position 152, and a second hole position corresponding to the first hole position 152 is provided at the bottom of the mounting groove 151. Fasteners such as screws are installed in the second hole position and the corresponding first hole position 152, and the support plate 15 can be disassembled and assembled by disassembling and assembling the fasteners in the first hole position 152 and the second hole position. The support plate 15 is provided in a detachable manner, and is easy to replace when the support plate 15 is worn.

[0050] Through the above structure, when the utility model is actually applied, the two fixing blocks 10 of the two background plate assemblies 1 are first connected to the two ends of the stacking table 100. In the initial state, the opening and closing plate 20 of the background plate assembly 1 is located at the first moving position, the two connecting bearings 31 are respectively located at the top of the two through grooves 22, the two connecting blocks 30 are both in a vertical state, and the two background plates 40 are located at the first rotation position. Figure 1 and Figure 2 shown.

[0051] When laminating, S1, first drive the laminating table 100 to move counterclockwise along the groove track through the magnetic suspension mechanism of the magnetic suspension laminating machine, and the movement of the laminating table 100 can drive the two background plate assemblies 1 to move synchronously. When the laminating table 100 reaches the negative electrode laminating station, the negative electrode sheet is stacked on the two background plates 40 of the two background plate assemblies 1. Since in the initial state, the opening and closing plate 20 of the background plate assembly 1 is located at the first moving position and the two background plates 40 are located at the first rotating position, the negative electrode sheet can be directly stacked on the two background plates 40 of the two background plate assemblies 1, and the negative electrode sheet can be supported by the two background plates 40 of the two background plate assemblies 1.

[0052] S2, then the stacking platform 100 is driven by the magnetic suspension mechanism to continue to move along the grooved track, and the movement of the stacking platform 100 can drive the two background plate assemblies 1 to move synchronously. When the stacking platform 100 reaches the positive electrode stacking station, the positive electrode sheet is stacked on the negative electrode sheet, and the two background plates 40 of the two background plate assemblies 1 can support the negative electrode sheet and the positive electrode sheet.

[0053] S3, then the stacking platform 100 is driven by the magnetic suspension mechanism to continue to move along the groove track, and the movement of the stacking platform 100 can drive the two background plate assemblies 1 to move synchronously. When the stacking platform 100 reaches the photographing station, the CCD camera is used to take pictures of one side of the negative electrode sheet and the positive electrode sheet, and the images obtained by the photography are uploaded to the alignment detection system.

[0054] S4, then the stacking platform 100 is driven by the magnetic suspension mechanism to continue to move along the grooved track, and the movement of the stacking platform 100 can drive the two background plate assemblies 1 to move synchronously. When the stacking platform 100 reaches the first predetermined position corresponding to the two guide rails 200, the cam followers 21 of the two background plate assemblies 1 are respectively matched with the entrance ends 201a of the cam grooves 201 of the two guide rails 200, and the opening and closing plates 20 of the two background plate assemblies 1 and the two background plates 40 are still in the first rotation position, so the negative electrode sheets and the positive electrode sheets are still stacked on the two background plates 40 of the two background plate assemblies 1. Afterwards, as the stacking table 100 continues to move, the cam followers 21 of the two background plate assemblies 1 can move along the corresponding cam grooves 201 respectively, and the cam followers 21 gradually move upward. Under the action of the guide column 12 and the slider 13, the upward movement of the cam follower 21 can drive the corresponding opening and closing plate 20 to move upward. In the process of the opening and closing plate 20 moving upward, under the action of the two connecting bearings 31 and the corresponding through grooves 22, the two connecting bearings 31 can respectively drive the two connecting blocks 30 to rotate around the axis of the corresponding rotating shaft 32 in the direction away from the space, thereby driving the two background plates 40 to rotate in the direction away from the space. When the stacking platform 100 reaches the second predetermined position corresponding to the two guide rails 200, the cam followers 21 of the two background plate assemblies 1 are respectively located at the highest points of the corresponding cam grooves 201, the opening and closing plate 20 is located at the second moving position, the two connecting blocks 30 are in an inverted eight-shaped shape, the two connecting bearings 31 are respectively located at the bottom ends of the two through grooves 22, and the two background plates 40 are located at the second rotation position. Since the two background plates 40 rotate in the direction away from the space, the movement trajectories of the two background plates 40 are arc-shaped. When the two background plates 40 reach the second rotation position, the two background plates 40 are respectively located on both sides of the stacking platform 100. At this time, the two background plates 40 no longer support the negative electrode sheet and the positive electrode sheet, so the negative electrode sheet and the positive electrode sheet will fall on the stacking platform 100, so that the negative electrode sheet and the positive electrode sheet can be supported by the stacking platform 100, and since the movement trajectories of the two background plates 40 are arc-shaped, the two background plates 40 will not cause damage to the negative electrode sheet. Afterwards, as the stacking table 100 continues to move, the cam followers 21 of the two background plate assemblies 1 can continue to move along the corresponding cam grooves 201, and the cam followers 21 gradually move downward. Under the action of the guide column 12 and the slider 13, the downward movement of the cam follower 21 can drive the corresponding opening and closing plate 20 to move downward. In the process of the opening and closing plate 20 moving downward, under the action of the two connecting bearings 31 and the corresponding through grooves 22, the two connecting bearings 31 can respectively drive the two connecting blocks 30 to rotate around the axis of the corresponding rotating shaft 32 toward the direction close to the space, thereby driving the two background plates 40 to rotate toward the direction close to the space.When the stacking table 100 reaches the third predetermined position corresponding to the two guide rails 200, the cam followers 21 of the two background plate assemblies 1 are respectively located at the outlet ends 201b of the corresponding cam grooves 201, the opening and closing plates 20 are located at the first moving position, the two connecting blocks 30 are both in a vertical state, the two connecting bearings 31 are respectively located at the top ends of the two through grooves 22, the two background plates 40 are located at the first rotation position, and the two background plate 40 parts of the two background plate assemblies 1 are respectively located above the positive electrode sheets.

[0055] S5, the stacking platform 100 is then driven by the magnetic suspension mechanism to continue to move along the grooved track, and the movement of the stacking platform 100 can drive the two background plate assemblies 1 to move synchronously. When the stacking platform 100 reaches the negative electrode stacking station again, the next negative electrode sheet is stacked on the two background plates 40 of the two background plate assemblies 1, and the two background plates 40 of the two background plate assemblies 1 can support the negative electrode sheet.

[0056] Repeat steps S2-S5 until the last negative electrode sheet and the last positive electrode sheet are stacked, thus obtaining a battery cell. Then, the alignment detection system analyzes all received images to obtain the alignment detection result of the battery cell.

[0057] The stacking background plate mechanism of the utility model is provided with two background plate assemblies 1 which are symmetrically arranged front to back. The background plate assembly 1 includes two fixed blocks which are relatively arranged left to right, an opening and closing plate, two connecting blocks which are relatively arranged left to right and two background plates which are relatively arranged left to right. In the actual stacking process, after the previous negative electrode sheet and the previous positive electrode sheet are sequentially stacked on the two background plates 40 of the two background plate assemblies 1, the cam followers 21 of the two background plate assemblies 1 are respectively moved along the cam grooves 201 of the two guide rails 200, so that the corresponding two background plates 40 can be driven to switch from the first rotation position to the second rotation position through the opening and closing plate 20 and the two connecting blocks 30, and then switch from the second rotation position to the first rotation position. When the two background plates 40 switch from the first rotation position to the second rotation position, the two background plates 40 no longer support the previous negative electrode sheet and the previous positive electrode sheet thereon, so that the two background plates 40 The previous negative electrode sheet and the previous positive electrode sheet can fall onto the stacking table 100. When the two background plates 40 are switched from the second rotation position to the first rotation position, the two background plates 40 are located in the same horizontal plane and parts of the two background plates 40 are respectively located above the previous positive electrode sheet. In this way, the next negative electrode sheet and the next positive electrode sheet can be stacked on the two background plates 40 of the two background plate assemblies 1 in sequence. In this way, the next negative electrode sheet can be separated from the previous positive electrode sheet by the two background plates 40 of the two background plate assemblies 1. When the CCD camera is used to photograph one side of the next negative electrode sheet and the next positive electrode sheet, the diaphragm of the previous negative electrode sheet will not interfere with the next negative electrode sheet and the next positive electrode sheet, so that a clear image can be obtained, and the photographing accuracy is improved. After that, after analyzing all the received images through the alignment detection system, a relatively accurate alignment detection result can be obtained, which ensures the accuracy of the alignment detection result and improves production efficiency.

[0058] The above is a specific description of the preferred implementation of the utility model, but the invention of the utility model is not limited to the described embodiments. Technical personnel familiar with the field can also make various equivalent deformations or substitutions without violating the spirit of the utility model. These equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A laminated background plate mechanism, characterized in that: It comprises two background plate assemblies which are symmetrically arranged front and back, and the background plate assemblies comprise two fixing blocks which are arranged opposite to each other left and right, an opening and closing plate, two connecting blocks which are arranged opposite to each other left and right, and two background plates which are arranged opposite to each other left and right; A space is formed between the two fixing blocks; The fixed block, the opening and closing plate, and the connecting block respectively have a first side and a second side opposite to each other, the second side of the opening and closing plate is connected to the first sides of the two fixed blocks, and the opening and closing plate can move up and down between the first moving position and the second moving position relative to the two fixed blocks. The first side of the opening and closing plate is provided with a cam follower, the second sides of the two connecting blocks are respectively rotatably connected to the first sides of the two fixed blocks, the two connecting block parts respectively protrude from the top ends of the corresponding fixed blocks, the first sides of the two connecting blocks are respectively connected to the second sides of the opening and closing plate, and the up and down movement of the opening and closing plate can drive the two connecting blocks to rotate in the direction of approaching or moving away from the space, respectively, and the two background plates are respectively connected to the top ends of the two connecting blocks, and the rotation of the two connecting blocks can respectively drive the two background plates to rotate between the first rotation position close to the space and the second rotation position away from the space; When the opening and closing plate is located at the first moving position, the two background plates are located at the first rotating position, and the two background plates are located in the same horizontal plane, and parts of the two background plates respectively protrude from one side of the two fixed blocks close to the space; when the opening and closing plate is located at the second moving position, the two background plates are located at the second rotating position, and the two background plates are in an eight-shape.

2. The laminated background plate mechanism according to claim 1, characterized in that: Two connecting bearings are respectively provided at the bottom ends of the first sides of the two connecting blocks, and two through slots are respectively provided at both ends of the second side of the opening and closing plate, the two through slots respectively correspond to the two connecting bearings, the two through slots are respectively inclined in a direction away from the center of the opening and closing plate, and the two through slots respectively match the two connecting bearings; When the opening and closing plate is located at the first moving position, the two connecting bearings are respectively located at the top ends of the two through slots; when the opening and closing plate is located at the second moving position, the two connecting bearings are respectively located at the bottom ends of the two through slots.

3. The laminated background plate mechanism according to claim 1, characterized in that: A mounting position is provided on the first side of the fixed block, a guide column is provided in the mounting position, one end of the guide column is arranged on the inner wall of the bottom end of the mounting position, the other end of the guide column extends upward, a slider is sleeved on the outer periphery of the guide column, the slider can slide up and down along the guide column, and the second side of the opening and closing plate is connected to the sliders of the two fixed blocks.

4. The laminated background plate mechanism according to claim 1, characterized in that: A groove is provided on the first side of the fixed block, the two connecting blocks are respectively located in the grooves of the two fixed blocks and the second sides of the two connecting blocks are rotatably connected to the bottoms of the corresponding grooves. When the opening and closing plate is located at the first moving position, there are gaps between the bottom ends of the two connecting blocks and the bottom inner walls of the corresponding grooves. When the opening and closing plate is located at the second moving position, the bottom ends of the two connecting blocks are respectively against the bottom inner walls of the corresponding grooves.

5. The laminated background plate mechanism according to claim 4, characterized in that: A support plate is provided on the first side of the fixing block, the support plate is located below the groove, and the support plate is in contact with the second side of the opening and closing plate.

6. The laminated background plate mechanism according to claim 4, characterized in that: A first mounting hole is provided on the second side of the connecting block, a second mounting hole corresponding to the first mounting hole is provided at the bottom of the groove, the first end of the rotating shaft is fixedly arranged in the first mounting hole, and the second end of the rotating shaft is rotatably arranged in the second mounting hole.

7. The laminated background plate mechanism according to claim 6, characterized in that: A first recess is provided at the bottom of the groove, and the first recess is arranged around the outer periphery of the second mounting hole. A second recess corresponding to the first recess is provided on the second side of the connecting block, and the second recess is arranged around the outer periphery of the first mounting hole. Torsion springs are provided in the first recess and the second recess.

8. The laminated background plate mechanism according to claim 4, characterized in that: The bottom end of the connecting block is provided with an arc surface. When the opening and closing plate is located at the first moving position, there is a gap between the arc surfaces of the two connecting blocks and the bottom inner walls of the corresponding grooves. When the opening and closing plate is located at the second moving position, the arc surfaces of the two connecting blocks respectively abut against the bottom inner walls of the two grooves.

9. The laminated background plate mechanism according to claim 5, characterized in that: A mounting groove is provided on the first side of the fixing block, and the mounting groove is located below the groove. The support plate is detachably arranged at the bottom of the mounting groove, and a portion of the support plate protrudes from the first side of the fixing block.

10. The laminated background plate mechanism according to claim 1, characterized in that: A vertical block is arranged on the second side of the fixing block, a mounting block is arranged on a side of the vertical block away from the fixing block, and a mounting hole is arranged on the mounting block.

Images