Lamination device

Abstract

A stacking device comprises: a stacking table assembly, the stacking table assembly comprises a stacking seat and a cell carrying platform, the stacking seat is provided with a first placement station, the cell carrying platform is placed on the first placement station, and a pressing device is provided on the stacking seat corresponding to the cell carrying platform; a stacking assembly for stacking cells on the cell carrying platform; a stacking table replacement mechanism for removing the cell carrying platform and the stacked cells and replacing the cell carrying platform with a new one on the first placement station; the stacking table replacement mechanism comprises a support seat, the support seat is provided with a transfer track, the stacking seat and the transfer track are slidably matched, and the support seat is provided with a stacking station for stacking cells, a transfer station for removing the cell carrying platform and the stacked cells, and a replacement station for placing a new cell carrying platform on the first placement station in sequence along the direction of the transfer track; the support seat is provided with a transfer drive mechanism for driving the stacking seat to move along the transfer track.

Description

Technical Field

[0001] The present invention belongs to the technical field of battery production equipment, and specifically relates to a lamination device. Background Art

[0002] With the advancement of battery production technology, the stacking process has developed rapidly. In existing stacking devices, the stacking table is fixed to the stacking base. Once the battery cells are stacked, a mechanism such as a clamp is required to transfer the stacked cells off the stacking table to allow for the production of the next cell. Because the newly stacked cells have not yet undergone the hot pressing process, the layers of electrodes and the separators between them are relatively loose. Using tools such as clamps to transfer the cells can easily cause misalignment between the layers of electrodes, thereby reducing stacking accuracy.

[0003] Similarly, during the production process of battery cell stacking, the layers of electrode sheets and diaphragms that have been stacked on the stacking table are also in a relatively fluffy state. If they are not restricted, the layers of electrode sheets will be misaligned, reducing the accuracy of battery cell stacking. Therefore, in the prior art, a knife pressing mechanism is generally used to press and fix the stacked layers of electrode sheets and diaphragms. The knife pressing mechanism includes a knife pressing mechanism and a knife pressing drive mechanism that drives the knife pressing action. During the stacking process, the knife pressing mechanism has the action processes of feeding, pressing down, retracting and lifting. In the prior art, a combination of power elements such as multiple servo motors or multiple cylinders is generally used to drive. Although the combined use of multiple power elements can meet the use requirements to a certain extent, it will undoubtedly increase the complexity of the structure and the difficulty of control, resulting in a larger size and higher cost of the knife pressing mechanism. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a stacking device that can meet the requirements of battery cell stacking production, and by making the battery cell supporting platform and the battery cell transferred synchronously, it can prevent the misalignment between the layers of electrode sheets of the battery cell during the transfer process, thereby improving the accuracy of battery cell stacking.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A lamination device, comprising:

[0007] A stacking table assembly, the stacking table assembly comprising a stacking seat and a cell carrying platform, the stacking seat being provided with a first placement station, the cell carrying platform being placed on the first placement station, and a knife pressing device being provided on the stacking seat corresponding to the cell carrying platform;

[0008] A stacking assembly, used for stacking cells on a cell carrying platform;

[0009] A stacking platform replacement mechanism, used to remove the battery cell carrying platform and the stacked battery cells and replace them with a new battery cell carrying platform at the first placement station;

[0010] The stacking table replacement mechanism includes a support base, a transfer track is provided on the support base, the stacking base and the transfer track are slidably matched, and the support base is provided with a stacking station for stacking battery cells, a transfer station for removing the battery cell carrying platform and the stacked battery cells, and a replacement station for placing a new battery cell carrying platform on the first placement station in sequence along the direction of the transfer track;

[0011] The support seat is provided with a transfer driving mechanism for driving the stacking seat to move along the transfer track.

[0012] Furthermore, the stack assembly includes a fixed guide plate and a rotating swing arm; the fixed guide plate is provided with a fixed guide rail, the fixed guide rail includes a straight guide section, and both ends of the straight guide section are respectively provided with downwardly inclined inclined sections; the rotating swing arm is provided with a rotating guide rail, and a stack moving member is provided between the rotating guide rail and the fixed guide rail, and the stack moving member is respectively slidably engaged with the rotating guide rail and the fixed guide rail;

[0013] The fixed guide plate is provided with a horizontal track parallel to the straight guide section, and the horizontal track is provided with a transverse movable plate that slides with the horizontal track; the transverse movable plate is provided with a vertical track perpendicular to the horizontal track, and the vertical track is provided with a stack mounting frame that slides with the horizontal track, and the stack mounting frame moves synchronously with the stack moving member; the stack mounting frame is equipped with a belt conveyor mechanism and two sheet material taking mechanisms respectively located on both sides of the belt conveyor mechanism;

[0014] It also includes a lamination driving mechanism for driving the rotating swing arm to rotate around a fixed axis located below the fixed guide track.

[0015] Furthermore, the battery cell carrying platform includes a carrying platform body and a battery cell transfer assembly; the carrying platform body includes a heat insulation plate and a hot pressing plate, the hot pressing plate is covered on the heat insulation plate, the surface of the hot pressing plate facing away from the heat insulation plate is the battery cell carrying surface for carrying the battery cell, and an electric heating device is provided between the heat insulation plate and the hot pressing plate; the battery cell transfer assembly includes winding rollers respectively located on both sides of the carrying platform body, and a transmission belt covering the battery cell carrying surface is provided between the two winding rollers.

[0016] Furthermore, a knife pressing device is provided on the stacking seat, and the knife pressing device includes two knife pressing assemblies, and the two knife pressing assemblies are respectively located at both ends of the stacking seat; the knife pressing assembly includes two double knife pressing linkage mechanisms, and the double knife pressing linkage mechanism includes two knife pressing mechanisms, and the two knife pressing mechanisms are respectively symmetrically arranged on both sides of the same end of the stacking seat;

[0017] The knife pressing mechanism includes a knife pressing mechanism, a knife pressing moving mechanism and a knife pressing driving mechanism;

[0018] The press knife moving mechanism includes a support plate, an inner plate, an outer plate and a movable shaft, the inner plate is located between the support plate and the outer plate; a first track is provided on the support plate, the inner plate is slidably engaged with the first track, a second track is provided on the inner plate, the outer plate is slidably engaged with the second track; the first track and the second track are perpendicular to each other, and the press knife is mounted on the outer plate;

[0019] The support plate is provided with a knife pressing track for constraining the movement trajectory of the knife pressing; the knife pressing track includes a knife feeding straight section and a knife retracting straight section parallel to each other, the knife feeding straight section is located above the knife retracting straight section, and a downward pressing inclined section and an upward lifting inclined section are respectively provided between the two ends of the knife feeding straight section and the knife retracting straight section;

[0020] The inner end of the movable shaft is in sliding engagement with the press track; the inner plate is provided with a hollow hole for the movable shaft to pass through, and the outer plate is in rotational engagement with the movable shaft;

[0021] A double hinge connecting rod is provided between the outer plate and the inner plate, and the double hinge connecting rod is hingedly connected to the outer plate and the inner plate respectively; the first track is parallel to the feed straight section, and the knife pressing drive mechanism is used to drive the inner plate to move along the first track;

[0022] The inner side plates of the two pressing mechanisms belonging to the same double-pressing-knife linkage mechanism move synchronously in opposite directions along the corresponding first track to drive the pressing knives of the two pressing mechanisms to synchronously advance or retract; the inner side plates of the two pressing mechanisms located on the same end and side of the stacking seat move synchronously in opposite directions along the corresponding first track to drive the pressing knives of the two pressing mechanisms to respectively advance and retract.

[0023] Furthermore, the knife pressing moving mechanism also includes a fixed shaft, which is installed on the support plate. The fixed shaft is provided with a guide plate that rotates with it. The guide plate is provided with a constraint track for assisting the steering of the moving shaft. The outer end of the moving shaft slides with the constraint track.

[0024] Furthermore, the constraint track includes a first constraint section and a second constraint section, a reversing transition section is provided between the first constraint section and the second constraint section, and when the inner end of the moving shaft is located between the retracting straight section and the downward pressing inclined section and the inner end of the moving shaft is located between the feeding straight section and the upward lifting inclined section, the outer end of the moving shaft is located in the reversing transition section.

[0025] Furthermore, the lower end of the downward-pressing inclined section is located on the side of the upper end thereof facing the feed direction, and the lower end of the upward-lifting inclined section is located on the side of the upper end thereof facing the feed direction.

[0026] Furthermore, the knife pressing drive mechanism includes a threaded screw parallel to the first track and a drive nut cooperating with the threaded screw, and the drive nut is fixedly connected to the inner plate; when the threaded screws of the two knife pressing mechanisms belonging to the same double knife pressing linkage mechanism have the same thread rotation direction, the rotation directions of the threaded screws of the two knife pressing mechanisms are opposite; or, when the threaded screws of the two knife pressing mechanisms belonging to the same double knife pressing linkage mechanism have opposite thread rotation directions, the rotation directions of the threaded screws of the two knife pressing mechanisms are the same.

[0027] Furthermore, the threaded screws of the two knife pressing mechanisms belonging to the same double knife pressing linkage mechanism are integrated into one and form a double screw, and the double screw is provided with two thread segments, and the thread rotation directions of the two thread segments are opposite, and the drive nuts of the two knife pressing mechanisms respectively cooperate with the two thread segments.

[0028] Furthermore, the knife pressing drive mechanism also includes a knife pressing power mechanism, and the knife pressing power mechanism includes a knife pressing power motor, and the knife pressing power motor drives the two twin screws belonging to the two double knife pressing linkage mechanisms to rotate synchronously; when the spiral directions of the threaded segments corresponding to the two knife pressing mechanisms located on the same end and the same side of the stacking seat are opposite, the knife pressing power motor drives the two twin screws to rotate in the same direction; when the spiral directions of the threaded segments corresponding to the two knife pressing mechanisms located on the same end and the same side of the stacking seat are the same, the knife pressing power motor drives the two twin screws to rotate in opposite directions.

[0029] Furthermore, the knife pressing assembly also includes a knife pressing mounting frame, and the support plate is fixedly mounted on the knife pressing mounting frame; the knife pressing mounting frame slides with the vertical rails arranged at both ends of the stacking seat, and an electromagnet assembly for driving the knife pressing mounting frame to move along the vertical rails is provided between the knife pressing mounting frame and the stacking seat.

[0030] Furthermore, a jacking support and a jacking mechanism for driving the jacking support to move in a vertical direction perpendicular to the transfer track are provided in the replacement station, and a second placement station for placing the stacking table is provided on the jacking support; a jacking support plate is provided on the jacking support, and the second placement station is arranged on the jacking support plate, and a clearance groove is provided on the stacking seat corresponding to the jacking support plate.

[0031] The beneficial effects of the present invention are:

[0032] The stacking device of the present invention arranges a stacking seat on the stacking table assembly and a first placement station on the stacking seat, and places the battery cell carrying platform on the first placement station. In this way, during the battery cell production process, the stacking assembly is used to directly stack the battery cells on the battery cell carrying platform. After the battery cell stacking is completed, the stacking seat is moved to the removal station using the stacking table replacement mechanism, and the battery cell and the battery cell carrying platform are removed and transferred as a whole, and then the stacking seat is moved to the replacement station, and a new battery cell carrying platform is replaced on the first placement station, and finally the stacking seat is moved to the stacking station for stacking production of the next battery cell. This reciprocating process can not only meet the production requirements of battery cell stacking, but also prevent the layers of electrode sheets of the battery cell from being misaligned during the transfer process by making the battery cell carrying platform and the battery cell be transferred synchronously, thereby improving the accuracy of battery cell stacking.

[0033] The present invention also has the following technical effects:

[0034] 1) By installing an electric heating device in the battery cell carrier platform, the battery cells can be preheated during the battery cell stacking process, thereby reducing the time the battery cells stay in the preheating process, improving production efficiency, and reducing the buffer space of the preheating process;

[0035] 2) By arranging a knife pressing device on the stacking seat and arranging knife pressing assemblies at both ends of the stacking seat, the two knife pressing assemblies can be used to press the two ends of the stacked battery cells respectively; by setting the knife pressing assemblies as two double-knife pressing linkage mechanisms, the two knife pressing mechanisms belonging to the same double-knife pressing linkage mechanism are made to move forward or backward synchronously, and the knife pressing mechanisms belonging to the two double-knife pressing linkage mechanisms are made to move forward and backward respectively. In this way, the two double-knife pressing linkage mechanisms can press the battery cells alternately to meet the knife pressing switching requirement when the battery cells are stacked;

[0036] The principle of the knife pressing mechanism is as follows: when the inner plate is driven to move along the first track, the outer plate moves relative to the inner plate along the second track under the action of the double-hinged connecting rod provided between the inner plate and the outer plate, and at the same time, the movement of the outer plate is also constrained by the movable shaft, and the movement of the movable shaft is constrained by the knife pressing track; in this way, the outer plate can be moved along the knife pressing track relative to the support plate; by arranging a feed straight section, a retract straight section, a downward pressing inclined section and an upward lifting inclined section on the knife pressing track, the movable shaft rotates along the knife pressing track; when the movable shaft is located at the feed straight section, the retract straight section, the downward pressing inclined section and the upward lifting inclined section The pressing knife installed on the outer plate moves toward the stacking seat (i.e., feed movement); when the moving shaft is in the downward pressing inclined section, the pressing knife moves downward toward the stacking seat (i.e., downward pressing movement); when the moving shaft is in the retracting straight section, the pressing knife moves away from the stacking seat (i.e., retracting movement); when the moving shaft is in the lifting inclined section, the pressing knife moves upward (i.e., lifting movement); in this way, only one power source is needed to drive the inner plate to move along the second track, so as to drive the pressing knife to realize the action processes of feeding, pressing, retracting and lifting, which can effectively simplify the structure and improve the reliability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to make the purpose, technical solutions and beneficial effects of the present invention more clear, the present invention provides the following drawings for illustration:

[0038] Figure 1 A first axonometric view of an embodiment of a lamination device according to the present invention;

[0039] Figure 2 This is a second axonometric view of the lamination device of this embodiment;

[0040] Figure 3 This is a cross-sectional view of the battery cell carrying platform;

[0041] Figure 4 This is the axonometric drawing of the battery cell carrying platform;

[0042] Figure 5 for Figure 4 A magnified view of area A;

[0043] Figure 6 Schematic diagram of the structure of the hot pressing plate;

[0044] Figure 7 It is a structural schematic diagram of the lamination table assembly;

[0045] Figure 8 for Figure 7 A magnified view of area B;

[0046] Figure 9 Schematic diagram of the structure of the track plate;

[0047] Figure 10 is a first axonometric view of the lamination assembly;

[0048] Figure 11 is a second axonometric view of the lamination assembly;

[0049] Figure 12 It is a structural diagram of the strip cutting mechanism;

[0050] Figure 13 This is a structural diagram of the new workstation.

[0051] 1-battery cell;

[0052] 10 - Battery cell carrying platform; 11 - Heat insulation board; 12 - Hot pressing plate; 13 - Electric heating rod; 14 - Groove; 15 - Conductive brush holder; 16 - Conductive brush; 17 - Winding roller; 18 - Drive belt; 19 - Connecting rod; 20 - Connecting block; 21 - Connecting shaft; 22 - Hexagon socket joint; 23 - Wear strip; 24 - Negative pressure hole; 25 - Through hole;

[0053] 30-Laminating table assembly; 31-Laminating seat; 32-First placement station; 33-Cutter press; 34-Support plate; 35-Inner plate; 36-Outer plate; 37-Drive shaft; 38-First track; 39-Second track; 40-Cutter press track; 41-Track plate; 42-Infeed straight section; 43-Retracted straight section; 44-Downward pressing inclined section; 45-Upward lifting inclined section; 46-Fixed shaft; 47-Guide plate; 48-Constraint track; 49-First constraint section; 50-Second constraint section; 51-Reversing transition section; 52-Double screw; 53-Drive nut; 54-Cutter press power motor; 55-Drive pulley; 56-Driven pulley; 57-Cutter press mounting bracket; 58-Vertical track;

[0054] 60 - lamination assembly; 61 - fixed guide plate; 62 - swing arm; 63 - fixed guide rail; 64 - straight guide section; 65 - inclined section; 66 - swing guide rail; 67 - lamination moving member; 68 - horizontal rail; 69 - transverse moving plate; 70 - vertical rail; 71 - lamination mounting frame; 72 - mounting plate; 73 - upper roller group; 74 - lower roller group; 75 - tension roller mechanism; 76 - suction cup; 77 - suction cup rotating arm; 78 - first support; 79 - second support; 80 - first cutting rail; 81 - second cutting rail; 82 - third support; 83 - vertical rail; 84 - film cutting bracket; 85 - film cutting assembly; 86 - fixed shaft; 87 - lamination drive motor; 88 - retrieving plate;

[0055] 90- stacking table replacement mechanism; 91- support base; 92- transfer rail; 93- lifting support; 94- lifting mechanism; 95- second placement station; 96- lifting support plate. DETAILED DESCRIPTION

[0056] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0057] like Figure 1-2 As shown, the lamination device of this embodiment includes a lamination table assembly 30, a lamination assembly 60, and a lamination table replacement mechanism 90. In this embodiment, the lamination table assembly 30 includes a lamination base 31 and a cell support platform 10. The lamination base 31 is provided with a first placement station 32, and the cell support platform 10 is placed on the first placement station 32. A knife pressing device is provided on the lamination base 31 corresponding to the cell support platform 10.

[0058] like Figure 3-6 As shown, in this embodiment, the cell support platform 10 comprises a support platform body, which includes a heat shield 11 and a hot press plate 12. The hot press plate 12 covers the heat shield 11. The surface of the hot press plate 12 facing away from the heat shield 11 serves as the cell support surface for the battery cells 1. An electric heating device is provided between the heat shield 11 and the hot press plate 12. In this embodiment, the electric heating device utilizes an electric heating rod 13. The electric heating rod 13 can be arranged in a variety of ways, such as in a serpentine pattern between the heat shield 11 and the hot press plate 12, or in a linear pattern with intervals between the heat shield 11 and the hot press plate 12. In this embodiment, the electric heating rod 13 is arranged in a serpentine pattern between the heat shield 11 and the hot press plate 12. In a preferred embodiment of this embodiment, a recess 14 for the heating rod 13 is provided on the bottom surface of the hot press plate 12 facing the heat shield 11. The electric heating rod 13 in this embodiment is mounted within the recess 14. Specifically, since the electric heating rod 13 is in a serpentine structure, the groove 14 of this embodiment is also in the same serpentine structure to install the electric heating rod 13. Of course, if the electric heating rod 13 is in a straight line or other shape, the shape of the groove 14 is set to the same shape as 13. By installing the electric heating rod 13 in the groove 14 of the hot pressing plate 12, the heat transfer efficiency between the electric heating rod 13 and the hot pressing plate 12 can be improved. Specifically, in order to supply power to the electric heating device, a conductive brush assembly for connecting the electric heating device to power is provided on the supporting platform body of this embodiment. The conductive brush assembly of this embodiment includes a conductive brush holder 15, and a conductive brush 16 is installed on the conductive brush holder 15. Specifically, the conductive brush holder 15 is installed on the hot pressing plate 12, and the conductive brush 16 is electrically connected to the electric heating rod 13. In this embodiment, there are two electric heating rods 13, and the two ends of the electric heating rod 13 are respectively located at the two ends of the supporting platform body. At the same end of the carrier platform body, the ends of the two electric heating rods 13 are respectively located on both sides of the carrier platform body, that is, conductive brush assemblies electrically connected to the two electric heating rods 13 are respectively provided on both sides of the same end of the carrier platform body.

[0059] The battery cell carrying platform 10 of this embodiment also includes a battery cell transfer assembly for transferring battery cells 1. The battery cell transfer assembly of this embodiment includes a winding roller 17 located on both sides of the carrying platform body, and a transmission belt 18 covering the battery cell carrying surface is provided between the two winding rollers 17. By driving the winding roller 17 to rotate, the transmission belt 18 can be driven to move along the battery cell carrying surface, thereby transferring the battery cell 1 to the outside of the battery cell carrying platform 10. In this embodiment, connecting rods 19 are provided at both ends of the winding roller 17, and connecting blocks 20 are provided at both ends of the carrying platform body corresponding to the connecting rod 19. The connecting block 20 is provided with a connecting shaft 21 parallel to the winding roller, and the two ends of the connecting rod 19 are respectively rotated with the winding roller 17 and the connecting shaft 21, that is, the connecting rod 19 plays the role of supporting the winding roller 17. The end faces of the winding roller 17 are provided with docking joints or docking grooves for connecting to other rotating shafts. In this embodiment, the end faces of both ends of the belt winding roller 17 are provided with docking grooves for connecting to other rotating shafts, and the docking grooves are hexagonal docking grooves 22. When the other rotating shafts are connected to the belt winding roller 17 through the hexagonal docking joints that cooperate with the hexagonal docking grooves 22, the belt winding roller 17 can be driven to rotate. Of course, in some other embodiments, a power mechanism that is connected to the belt winding roller 17 for driving the belt winding roller 17 to rotate can also be provided on the supporting platform body, which will not be repeated. In the preferred embodiment of this embodiment, wear-resistant strips 23 that cooperate with the transmission belt 18 are respectively provided on both sides of the supporting platform body to prevent the hot pressing plate 12 from being worn. In the preferred embodiment of this embodiment, negative pressure holes 24 are arranged in an array on the hot pressing plate 12, and correspondingly, through holes 25 are provided on the transmission belt 18 corresponding to the negative pressure holes 24. The negative pressure effect of the negative pressure holes 24 and the through holes 25 can adsorb the battery cells on the battery cell supporting surface.

[0060] like Figure 7-9As shown, the knife pressing device of this embodiment includes two knife pressing assemblies, one located at each end of the lamination stack 31. The knife pressing assembly of this embodiment includes two dual-knife pressing linkage mechanisms, each comprising two knife pressing mechanisms symmetrically positioned on either side of the same end of the lamination stack. Specifically, in this embodiment, the knife pressing mechanism includes a knife pressing blade 33, a knife pressing movement mechanism, and a knife pressing drive mechanism. The knife pressing movement mechanism of this embodiment includes a support plate 34, an inner plate 35, an outer plate 36, and a movable shaft 37. The inner plate 35 is positioned between the support plate 34 and the outer plate 36. A first track 38 is provided on the support plate 34, with which the inner plate 35 slidably engages. A second track 39 is provided on the inner plate 35, with which the outer plate 36 slidably engages. The first and second tracks 38, 39 are perpendicular to each other, and the knife pressing blade 33 is mounted on the outer plate 36. Thus, the interlocking first and second tracks 38, 39 allow the outer plate 36 to move in a planar manner relative to the support plate 34. The support plate 34 of this embodiment is provided with a press track 40 for constraining the moving trajectory of the press 33. Specifically, a track plate 41 is installed on the support plate 34, and the press track 40 is arranged on the track plate 41. The press track 40 of this embodiment includes a feed straight section 42 and a retract straight section 43 that are parallel to each other, the feed straight section 42 is located above the retract straight section 43, and a downward pressing inclined section 44 and an upward lifting inclined section 45 are respectively provided between the two ends of the feed straight section 42 and the retract straight section 43, wherein the lower end of the downward pressing inclined section 44 is located on the side of its upper end facing the feed direction, and the lower end of the upward lifting inclined section 45 is located on the side of its upper end facing the feed direction.

[0061] The inner end of the movable shaft 37 of this embodiment is in sliding engagement with the press track 40; the inner plate 35 is provided with a hollow hole for the movable shaft 37 to pass through, and the hollow hole prevents the movable shaft 37 from interfering with the inner plate 35 when it moves relative to the inner plate 35. The outer plate 36 of this embodiment is in rotational engagement with the movable shaft 37. In this way, the trajectory of the planar movement of the outer plate 36 relative to the support plate 34 is constrained by the movable shaft 37 and is the same as the trajectory of the press track 40. In this embodiment, a double-hinged connecting rod is provided between the outer plate 36 and the inner plate 35, and the double-hinged connecting rod is hingedly connected to the outer plate 36 and the inner plate 35, respectively. In this embodiment, the first track 38 is parallel to the feed straight section 42, and the press drive mechanism is used to drive the inner plate 35 to move along the first track 38. Thus, during the movement of the inner plate 35 along the first track 38, the outer plate 36 moves relative to the inner plate 35 along the second track 39 under the action of the double-hinged connecting rod, and the outer plate 36 performs planar motion relative to the support plate 34. The planar motion of the outer plate 36 relative to the support plate 34 is constrained by the press track 40 under the action of the movable shaft 37. The movable shaft 37 performs rotational motion along the press track 40; when the movable shaft 37 is located in the feed straight section 42, the press blade 33 mounted on the outer plate 36 moves toward the stacking seat 31 (i.e., feed motion); when the movable shaft 37 is located in the downward pressing inclined section 44, the press blade 33 moves downward toward the stacking seat 31 (i.e., downward pressing motion); when the movable shaft 37 is located in the retracting straight section 43, the press blade 33 moves away from the stacking seat 31 (i.e., retracting motion); and when the movable shaft 37 is located in the upward lifting inclined section 45, the press blade 33 moves upward (i.e., lifting motion). In this way, only one power source is needed to drive the inner plate to move along the second track 39 to drive the pressing knife 33 to realize the action processes of feeding, pressing down, retracting and lifting, which can effectively simplify the structure and improve the reliability of the equipment.

[0062] Specifically, in order to achieve alternating motion between the pressing knives of the two double-pressing knife linkage mechanisms. In this embodiment, the inner side plates 35 of the two pressing knife mechanisms belonging to the same double-pressing knife linkage mechanism move synchronously in opposite directions along the corresponding first track 38. Since the two pressing knife mechanisms belonging to the same double-pressing knife linkage mechanism are symmetrically arranged on both sides of the same end of the stacking seat 31, the pressing knives 33 of the two pressing knife mechanisms can be driven to synchronously perform advance or retreat motion. The inner side plates 35 of the two pressing knife mechanisms located on the same side of the same end of the stacking seat 31 move synchronously in opposite directions along the corresponding first track 38 to drive the pressing knives of the two pressing knife mechanisms to perform advance and retreat motion respectively.

[0063] In a preferred embodiment of this embodiment, the knife pressing moving mechanism further includes a fixed shaft 46, which is mounted on the support plate 34. The fixed shaft 46 is provided with a guide plate 47 that rotates therewith. The guide plate 47 is provided with a constraint track 48 for assisting the dynamic shaft 37 in turning. The outer end of the dynamic shaft 37 slides with the constraint track 48. The constraint track 48 of this embodiment includes a first constraint section 49 and a second constraint section 50. A reversing transition section 51 is provided between the first constraint section 49 and the second constraint section 50. When the inner end of the dynamic shaft 37 is located between the retracting straight section 43 and the pressing inclined section 44 and the inner end of the dynamic shaft 37 is located between the feeding straight section 42 and the lifting inclined section 45, the outer end of the dynamic shaft 37 is located in the reversing transition section 51 to guide the dynamic shaft 37 in turning and prevent the dynamic shaft 37 from moving in the opposite direction along the knife pressing track 40.

[0064] In this embodiment, the knife pressing drive mechanism includes a threaded screw parallel to the first track 38 and a drive nut 53 engaged with the threaded screw. The drive nut 53 is fixedly connected to the inner plate 35. When the threaded screw is rotated, the drive nut 53 moves along the threaded screw, thereby driving the inner plate 35 to move along the first track 38. Specifically, the threaded screws of the two knife pressing mechanisms belonging to the same double knife pressing linkage mechanism can be independently provided. In this case, when the threaded screws of the two knife pressing mechanisms belonging to the same double knife pressing linkage mechanism have the same threaded rotation direction, the threaded screws of the two knife pressing mechanisms rotate in opposite directions; when the threaded screws of the two knife pressing mechanisms belonging to the same double knife pressing linkage mechanism have opposite threaded rotation directions, the threaded screws of the two knife pressing mechanisms rotate in the same direction. In this embodiment, the threaded screws of the two knife pressing mechanisms belonging to the same double knife pressing linkage mechanism are integrated and form a double screw 52. The double screw 52 is provided with two threaded segments with opposite threaded rotation directions. The drive nuts 53 of the two knife pressing mechanisms respectively engage with the two threaded segments.

[0065] The knife pressing drive mechanism of the present embodiment also includes a knife pressing power mechanism, which includes a knife pressing power motor 54. The knife pressing power motor 54 drives two twin screws 52 belonging to the two twin knife pressing linkage mechanisms to rotate synchronously. Specifically, in order to achieve the knife pressing mechanisms belonging to the two twin knife pressing linkage mechanisms to alternately advance and retreat, when the spiral directions of the thread segments corresponding to the two knife pressing mechanisms located at the same end and side of the stacking seat 31 are opposite, the knife pressing power motor 54 drives the two twin screws 52 to rotate in the same direction; when the spiral directions of the thread segments corresponding to the two knife pressing mechanisms located at the same end and side of the stacking seat 31 are the same, the knife pressing power motor 54 drives the two twin screws 52 to rotate in opposite directions. In this embodiment, the knife pressing power motor 54 is arranged in a one-to-one correspondence with the knife pressing assembly, that is, a knife pressing power motor 54 is respectively provided at both ends of the stacking seat 31, and a driving pulley 55 is installed on the output shaft of the knife pressing power motor 54, and a driven pulley 56 is correspondingly provided on the two twin screws 52.

[0066] The knife pressing assembly of this embodiment further includes a knife pressing mounting frame 57, to which the support plate 31 is fixedly mounted. The knife pressing mounting frame 57 of this embodiment slides with vertical rails 58 provided at both ends of the stacking base 31. An electromagnet assembly (not shown) is provided between the knife pressing mounting frame 57 and the stacking base 31 for driving the knife pressing mounting frame 57 to move along the vertical rails 58.

[0067] like Figure 10-11As shown, the stacking assembly of this embodiment is used for stacking battery cells on the battery cell supporting platform 10. The stacking assembly 60 of this embodiment includes a fixed guide plate 61 and a rotating swing arm 62. The fixed guide plate 61 of this embodiment is provided with a fixed guide rail 63, and the fixed guide rail 63 includes a straight guide section 64. The two ends of the straight guide section 64 are respectively provided with downwardly inclined inclined sections 65. The rotating swing arm 62 is provided with a swinging guide rail 66, and a stacking moving member 67 is provided between the swinging guide rail 66 and the fixed guide rail 63. The stacking moving member 67 slides with the swinging guide rail 66 and the fixed guide rail 63 respectively. That is, when the rotating swing arm 62 swings around a fixed axis, the stacking moving member 67 can be driven to move along the fixed guide rail 63. The fixed guide plate 61 of this embodiment is provided with a horizontal rail 68 parallel to the straight guide section 64, and the horizontal rail 68 is provided with a transverse moving plate 69 that slides with it. The transverse movable plate 69 is provided with a vertical track 70 perpendicular to the horizontal track 68. The vertical track 70 is provided with a lamination mounting frame 71 that slidably engages with the lamination mounting frame 71. The lamination mounting frame 71 moves synchronously with the lamination moving member 67. Specifically, under the action of the horizontal track 68 and the vertical track 70, the lamination mounting frame 71 can move in a plane relative to the fixed guide plate 61, but this plane motion is constrained by the lamination moving member 67 and the fixed guide track 63. The lamination mounting frame 71 of this embodiment is equipped with a strip conveying mechanism and two sheet material removal mechanisms located on either side of the strip conveying mechanism. In this embodiment, the strip conveying mechanism includes a mounting plate 72 fixedly connected to the lamination mounting frame 71. An upper roller assembly 73 and a lower roller assembly 74 for guiding the strip are mounted on the mounting plate 72. The upper roller assembly 73 is located above the lower roller assembly 74. A tension roller mechanism 75 for controlling the tension of the strip is located between the upper roller assembly 73 and the lower roller assembly 74. The roller frame of the lower roller group 74 is provided with a suction cup assembly for sucking the end of the strip after the strip is cut. In this embodiment, the suction cup assembly includes a suction cup 76, and suction cup rotating arms 77 are provided between the two ends of the suction cup 76 and the roller frame of the lower roller group 74. The two ends of the suction cup rotating arm 77 are respectively hingedly connected to the suction cup 76 and the roller frame of the lower roller group 74. In this way, the working state of the suction cup assembly is switched by rotating the suction cup rotating arm 77. The lamination assembly of this embodiment also includes a strip cutting mechanism for cutting the strip. Figure 12As shown, the strip cutting mechanism includes a first support 78 and a second support 79. The first support 78 is provided with a first cutting track 80 parallel to the horizontal track 68, and the second support 79 slides in engagement with the first cutting track 80. The second support 79 is provided with a second cutting track 81 perpendicular to and horizontal to the horizontal track 68. The second cutting track 81 is provided with a third support 82 that slides in engagement with the second cutting track 81. The third support 82 is provided with a vertical track 83, and the vertical track 83 is provided with a film cutting bracket 84 that slides in engagement with the vertical track 83. The film cutting bracket 84 is provided with a film cutting assembly 85. In this embodiment, the film cutting assembly 85 utilizes an electric heating wire. The lamination assembly of this embodiment also includes a lamination drive mechanism for driving the rotating swing arm 62 to rotate about a fixed shaft 86 located below the fixed guide rail 63. In this embodiment, the rotating swing arm 62 rotates synchronously with the fixed shaft 86, and the fixed guide plate 61 is provided with a lamination drive motor 87 that is transmission-connected to the fixed shaft 86. The sheet material taking mechanism of this embodiment includes a taking plate 88 , which is fixedly mounted on the sheet stacking mounting frame 71 , and an array of negative pressure suction holes is provided on the bottom surface of the taking plate 88 .

[0068] The stacking platform replacement mechanism 90 of this embodiment is used to remove the battery cell carrying platform 10 and the battery cells 1 that have been stacked and replace the new battery cell carrying platform 10 on the first placement station 32. The battery cell carrying platform replacement mechanism of this embodiment includes a support seat 91, and a transfer track 92 is provided on the support seat 91. The stacking seat 31 slides with the transfer track 92. The support seat 91 is provided with a stacking station for stacking battery cells, a transfer station for removing the battery cell carrying platform 10 and the battery cells 1 that have been stacked, and a replacement station for placing a new battery cell carrying platform 10 on the first placement station 32 along the transfer track 92. The support seat 91 is provided with a transfer drive mechanism for driving the stacking seat 31 to move along the transfer track 92. The transfer drive mechanism of this embodiment adopts a threaded screw mechanism. As shown in FIG. Figure 13 The replacement station of the embodiment shown is equipped with a lifting support 93 and a lifting mechanism 94 for driving the lifting support 93 to move in a vertical direction perpendicular to the transfer track. The lifting support 93 is provided with a second placement station 95 for placing the battery cell support platform 10. In this embodiment, the lifting support 93 is provided with a lifting support plate 96, and the second placement station 95 is arranged on the lifting support plate 96. The stacking base 31 is provided with a clearance groove corresponding to the lifting support plate 96.

[0069] The above embodiments are merely preferred embodiments for the purpose of fully illustrating the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are within the scope of protection of the present invention. The scope of protection of the present invention shall be subject to the claims.

Claims

1. A lamination device, characterized in that: include: A stacking table assembly, the stacking table assembly comprising a stacking seat and a cell carrying platform, the stacking seat being provided with a first placement station, the cell carrying platform being placed on the first placement station, and a knife pressing device being provided on the stacking seat corresponding to the cell carrying platform; 7. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 1, wherein said linking rod and said adjusting base are pivotally connected to each other with a bolt, and said bolt has a round shank to contact with said linking rod. said linking rod having a round shank and a bolt. said bolt has a round shank to contact with said linking rod. A stacking platform replacement mechanism, used to remove the battery cell carrying platform and the stacked battery cells and replace them with a new battery cell carrying platform at the first placement station; The battery cell carrying platform includes a carrying platform body and a battery cell transfer assembly; the carrying platform body includes a heat insulation plate and a hot pressing plate, the hot pressing plate is covered on the heat insulation plate, the side surface of the hot pressing plate facing away from the heat insulation plate is the battery cell carrying surface for carrying the battery cell, and an electric heating device is provided between the heat insulation plate and the hot pressing plate; the battery cell transfer assembly includes winding rollers respectively located on both sides of the carrying platform body, and a transmission belt covering the battery cell carrying surface is provided between the two winding rollers; The stacking table replacement mechanism includes a support base, a transfer track is provided on the support base, the stacking base and the transfer track are slidably matched, and the support base is provided with a stacking station for stacking battery cells, a transfer station for removing the battery cell carrying platform and the stacked battery cells, and a replacement station for placing a new battery cell carrying platform on the first placement station in sequence along the direction of the transfer track; The support seat is provided with a transfer drive mechanism for driving the stacking seat to move along the transfer track; The knife pressing device includes two knife pressing assemblies, which are respectively located at the two ends of the stacking seat; the knife pressing assembly includes two double knife pressing linkage mechanisms, which include two knife pressing mechanisms, which are respectively symmetrically arranged on both sides of the same end of the stacking seat.

2. The lamination device according to claim 1, characterized in that: The knife pressing mechanism includes a knife pressing mechanism, a knife pressing moving mechanism and a knife pressing driving mechanism; The press knife moving mechanism includes a support plate, an inner plate, an outer plate and a movable shaft, the inner plate is located between the support plate and the outer plate; a first track is provided on the support plate, the inner plate is slidably engaged with the first track, a second track is provided on the inner plate, the outer plate is slidably engaged with the second track; the first track and the second track are perpendicular to each other, and the press knife is mounted on the outer plate; The support plate is provided with a knife pressing track for constraining the movement trajectory of the knife pressing; the knife pressing track includes a knife feeding straight section and a knife retracting straight section parallel to each other, the knife feeding straight section is located above the knife retracting straight section, and a downward pressing inclined section and an upward lifting inclined section are respectively provided between the two ends of the knife feeding straight section and the knife retracting straight section; The inner end of the movable shaft is in sliding engagement with the press track; the inner plate is provided with a hollow hole for the movable shaft to pass through, and the outer plate is in rotational engagement with the movable shaft; A double hinge connecting rod is provided between the outer plate and the inner plate, and the double hinge connecting rod is hingedly connected to the outer plate and the inner plate respectively; the first track is parallel to the feed straight section, and the knife pressing drive mechanism is used to drive the inner plate to move along the first track; The inner side plates of the two pressing mechanisms belonging to the same double-pressing-knife linkage mechanism move synchronously in opposite directions along the corresponding first track to drive the pressing knives of the two pressing mechanisms to synchronously advance or retract; the inner side plates of the two pressing mechanisms located on the same end and side of the stacking seat move synchronously in opposite directions along the corresponding first track to drive the pressing knives of the two pressing mechanisms to respectively advance and retract.

3. The lamination device according to claim 2, characterized in that: The knife pressing moving mechanism also includes a fixed shaft, which is mounted on the support plate. The fixed shaft is provided with a guide plate that rotates with it. The guide plate is provided with a constraint track for assisting the turning of the moving shaft. The outer end of the moving shaft slides with the constraint track.

4. The lamination device according to claim 3, characterized in that: The constraint track includes a first constraint section and a second constraint section, and a reversing transition section is provided between the first constraint section and the second constraint section. When the inner end of the movable shaft is located between the retracting straight section and the downward pressing inclined section and the inner end of the movable shaft is located between the feeding straight section and the upward lifting inclined section, the outer end of the movable shaft is located in the reversing transition section.

5. The lamination device according to claim 2, characterized in that: The lower end of the downward-pressing inclined section is located on the side of the upper end thereof facing the feed direction, and the lower end of the upward-lifting inclined section is located on the side of the upper end thereof facing the feed direction.

6. The lamination device according to claim 2, characterized in that: The knife pressing drive mechanism includes a threaded screw parallel to the first track and a drive nut cooperating with the threaded screw, and the drive nut is fixedly connected to the inner plate; when the threaded screws of the two knife pressing mechanisms belonging to the same double knife pressing linkage mechanism have the same thread rotation direction, the threaded screws of the two knife pressing mechanisms rotate in opposite directions; or, when the threaded screws of the two knife pressing mechanisms belonging to the same double knife pressing linkage mechanism have opposite thread rotation directions, the threaded screws of the two knife pressing mechanisms rotate in the same direction.

7. The lamination device according to claim 6, characterized in that: The threaded screws of the two knife pressing mechanisms belonging to the same double knife pressing linkage mechanism are integrated into one and form a double screw. The double screw is provided with two thread segments, and the thread rotation directions of the two thread segments are opposite. The drive nuts of the two knife pressing mechanisms respectively cooperate with the two thread segments.

8. The lamination device according to claim 7, characterized in that: The knife pressing drive mechanism also includes a knife pressing power mechanism, and the knife pressing power mechanism includes a knife pressing power motor, and the knife pressing power motor drives the two twin screws belonging to the two double knife pressing linkage mechanisms to rotate synchronously; when the spiral directions of the threaded segments corresponding to the two knife pressing mechanisms located on the same end and the same side of the stacking seat are opposite, the knife pressing power motor drives the two twin screws to rotate in the same direction; when the spiral directions of the threaded segments corresponding to the two knife pressing mechanisms located on the same end and the same side of the stacking seat are the same, the knife pressing power motor drives the two twin screws to rotate in opposite directions.

9. The lamination device according to claim 2, characterized in that: The knife pressing assembly also includes a knife pressing mounting frame, and the support plate is fixedly mounted on the knife pressing mounting frame; the knife pressing mounting frame slides with vertical rails arranged at both ends of the stacking seat, and an electromagnet assembly for driving the knife pressing mounting frame to move along the vertical rails is provided between the knife pressing mounting frame and the stacking seat.

10. The lamination device according to claim 1, characterized in that: The replacement station is provided with a jacking support and a jacking mechanism for driving the jacking support to move in a vertical direction perpendicular to the transfer track, and the jacking support is provided with a second placement station for placing the stacking table; the jacking support is provided with a jacking support plate, and the second placement station is arranged on the jacking support plate, and a clearance groove is provided on the stacking seat corresponding to the jacking support plate.

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