Laminating bracket and laminating machine

Abstract

The utility model relates to the technical field of batteries, in particular to a lamination support and a lamination stacker, the lamination support comprises a transfer device and a fixing device, the fixing device comprises two fixing mechanisms arranged at intervals, the two fixing mechanisms are both connected with the transfer device, one fixing mechanism is used for fixing one end of a pole piece, and the other fixing mechanism is used for fixing the other end of the pole piece. And the other fixing mechanism is used for fixing the other end of the pole piece. According to the utility model, the two fixing mechanisms respectively fix the two end parts of the pole piece, then the pole piece is transferred to the lamination table, and in the whole transfer process, only part of the surface of the end part of the pole piece is shielded by the fixing mechanisms, and the other surfaces of the pole piece can be exposed, so that dust removal and appearance detection can be conveniently carried out on the two surfaces of the pole piece; therefore, the probability of quality problem of the pole piece is reduced, and the qualified rate of the laminated battery cell is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a stacking bracket and a stacking machine. Background Art

[0002] In the production process of stacked batteries, the positive and negative electrodes are generally sucked up by the suction cups on the transfer robot and transported to the stacking platform. Then, multiple positive and negative electrodes are stacked alternately, and a separator is set between the positive and negative electrodes. After pressing, binding and circuit processing, a stacked battery cell is formed.

[0003] During the process of transporting the electrode, since one side of the electrode is always in contact with the suction cup, only the other side can be exposed for dust removal and appearance inspection, which makes the electrode prone to quality problems and reduces the qualified rate of the stacked battery cells. Utility Model Content

[0004] The embodiments of the utility model provide a stacking bracket and a stacking machine to solve the problem in the prior art that one side of the pole piece is blocked by a suction cup and dust removal and appearance inspection cannot be performed, thereby reducing the qualified rate of the stacked battery core.

[0005] The utility model provides a stacking bracket, comprising:

[0006] A transfer device, the transfer device is used to transfer the pole piece to the lamination table;

[0007] The fixing device comprises two fixing mechanisms which are arranged at intervals, and both of the fixing mechanisms are connected to the transfer device, wherein one of the fixing mechanisms is used to fix one end of the pole piece, and the other fixing mechanism is used to fix the other end of the pole piece.

[0008] Optionally, the fixing mechanism includes a fixing member, the fixing member is connected to the transfer device, and the fixing member is used to fix the pole piece.

[0009] Optionally, the fixing member is a suction cup.

[0010] Optionally, the fixing mechanism further includes a correction component, which is connected to the fixing member and is used to drive the fixing member to move along the X direction and / or the Y direction, wherein the Y direction is perpendicular to the X direction and the Y direction and the X direction are located in the same horizontal plane.

[0011] Optionally, the transfer device includes a rotating shaft and a connecting rod;

[0012] The connecting rod is fixed to the peripheral side of the rotating shaft, and the connecting rod is connected to the fixing mechanism.

[0013] Optionally, the stack support comprises at least two fixing devices, a fixing mechanism of each fixing device is connected to one connecting rod, and at least two fixing mechanisms are distributed around the circumference of the rotation axis.

[0014] Optionally, the correction component includes:

[0015] a first deflection-correcting platform, the first deflection-correcting platform being connected to the transfer device;

[0016] A first sliding member, wherein the first sliding member is slidably connected to the first deviation correcting platform;

[0017] A first driving member is connected to the first sliding member, the first driving member drives the first sliding member to move, and the first sliding member drives the fixing member to move along one of the X direction and the Y direction.

[0018] Optionally, the correction component further includes:

[0019] a second deflection correcting platform, wherein the second deflection correcting platform is fixedly connected to the first sliding member;

[0020] a second sliding member, the second sliding member being slidably connected to the second deflection correcting platform;

[0021] The second driving member is connected to the second sliding member, the second driving member drives the second sliding member to move, and the second sliding member drives the fixing member to reciprocate along the other direction of the X direction and the Y direction.

[0022] The embodiment of the utility model further provides a laminating machine, comprising a laminating table for stacking pole pieces and a laminating bracket as described in any one of the above items;

[0023] The two lamination supports are arranged opposite to each other, the lamination platform is located between the two lamination supports, and the two fixing mechanisms of each lamination support are arranged at intervals along the X direction.

[0024] Optionally, lamination clamps are provided at both ends of the lamination platform along the Y direction, the lamination clamps are used to fix the stacked pole pieces, the Y direction is perpendicular to the X direction, and the Y direction and the X direction are located in the same horizontal plane.

[0025] Optionally, a lifting component is further included, wherein the lifting component is connected to the stacking platform, and the lifting component is used to drive the stacking platform to move along the direction of gravity.

[0026] Optionally, a traction assembly is further included, and the traction assembly is arranged at one end of the lamination platform along the X direction, and the traction assembly includes:

[0027] Traction bracket;

[0028] A traction clamping jaw, wherein the traction clamping jaw is used to pull the diaphragm;

[0029] A traction driving member, wherein the traction driving member is connected to the traction bracket and the traction clamping claw respectively, and is used for driving the traction clamping claw to reciprocate along the X direction.

[0030] Optionally, a cutting assembly is further included, and the cutting assembly is arranged at the other end of the lamination platform along the X direction, and the cutting assembly includes:

[0031] Cutting brackets;

[0032] A cutting piece, the cutting piece is used to cut the diaphragm;

[0033] A cutting drive member, wherein the cutting drive member is connected to the cutting bracket and the cutting member respectively, and is used to drive the cutting member to reciprocate along the Y direction, wherein the Y direction is perpendicular to the X direction, and the Y direction and the X direction are located in the same horizontal plane.

[0034] Optionally, a positioning detection device is further included, and the stacking table is provided with the positioning detection device, and the positioning detection device includes:

[0035] Positioning detection bracket;

[0036] Two groups of positioning detection components are connected to the positioning detection bracket. The two groups of positioning detection components are arranged relatively spaced along the gravity direction, and a positioning detection space for the pole piece to pass through is formed between the two groups of positioning detection components.

[0037] Optionally, a dust removal device is also included;

[0038] The dust removal device has an air outlet, and the air outlet is arranged close to the positioning detection component.

[0039] Optionally, the positioning detection component includes at least one image sensor, and the image sensor is connected to the positioning detection bracket.

[0040] Optionally, a conveyor belt is further included. The conveyor belt is disposed on the sides of the two stacking brackets facing away from each other. The conveyor belt is located between the two fixing mechanisms that are oppositely disposed along the X direction. The conveyor belt is used to transport the pole pieces to the fixing mechanisms.

[0041] Compared with the prior art, the utility model has the following advantages:

[0042] In the embodiment of the present application, when stacking, two fixing mechanisms respectively fix the two ends of the electrode sheet, and then the electrode sheet is transferred to the stacking table. During the entire transfer process, only part of the surface of the end of the electrode sheet is blocked by the fixing mechanism, while the rest of the surface of the electrode sheet can be exposed, thereby facilitating dust removal and appearance inspection of both sides of the electrode sheet, so as to solve the problem in the prior art that one side of the electrode sheet is blocked by the suction cup and cannot be dusted or inspected, thereby reducing the qualified rate of the stacked battery cell.

[0043] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for describing the embodiments are briefly introduced below.

[0045] Figure 1 A schematic structural diagram of a laminating machine provided in an embodiment of the utility model;

[0046] Figure 2 A structural side view of a laminating machine provided by an embodiment of the utility model;

[0047] Figure 3 A schematic structural diagram of a laminate bracket provided in an embodiment of the utility model;

[0048] Figure 4 A schematic diagram of the structure of a deviation correction component provided by an embodiment of the utility model;

[0049] Figure 5 A schematic structural diagram of a lamination table provided in an embodiment of the utility model;

[0050] Figure 6 A schematic diagram of the structure of a traction assembly provided by an embodiment of the utility model;

[0051] Figure 7 A schematic structural diagram of a cutting assembly provided in an embodiment of the utility model;

[0052] Figure 8 A structural schematic diagram of a positioning detection component provided in an embodiment of the utility model.

[0053] Description of reference numerals:

[0054] 1. Transfer device; 11. Rotating axis; 12. Connecting rod; 2. Fixing mechanism; 21. Fixing member; 22. Correction assembly; 221. First correction platform; 222. First sliding member; 223. First driving member; 224. Second correction platform; 225. Second sliding member; 226. Second driving member; 3. Horizontal motor; 4. Lamination platform; 41. Lamination clamp; 5. Lifting assembly; 6. Traction assembly; 61. Traction bracket; 62. Traction clamp; 63. Traction driving member; 64. Diaphragm; 7. Cutting assembly; 71. Cutting bracket; 72. Cutting member; 73. Cutting driving member; 8. Positioning detection device; 81. Positioning detection bracket; 82. Positioning detection assembly; 821. Image sensor; X, first direction; Y, second direction; Z, third direction. DETAILED DESCRIPTION

[0055] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can also be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0056] Reference Figure 1-Figure 3 The utility model provides a stacking support, which includes a transfer device 1, which is used to transfer the pole piece to the stacking table 4; a fixing device, which includes two fixing mechanisms 2 arranged at intervals, and the two fixing mechanisms 2 are connected to the transfer device 1, wherein one of the fixing mechanisms 2 is used to fix one end of the pole piece, and the other fixing mechanism 2 is used to fix the other end of the pole piece.

[0057] Specifically, the stacking bracket includes a transfer device 1 and a fixing device. The transfer device 1 can rotate or translate in space under the drive of the driving member, and transfer the pole piece to the stacking table 4 for stacking. The transfer device 1 can adopt a rotating frame, a translation mechanism, a lifting mechanism or a mechanical gripper device. The number of fixing devices on each rotating bracket can be one or more, which is not limited in the embodiment of the present application, and those skilled in the art can flexibly select according to actual needs.

[0058] like Figure 1 As shown, there are six fixing devices on each stacking bracket, and the six fixing devices are evenly arranged around the outer side of the transfer device 1. Each fixing device includes two fixing mechanisms 2 spaced apart along the first direction X. The spacing between the two fixing mechanisms 2 is adapted to the length of the pole piece. When the pole piece is placed on the fixing mechanism 2, the two ends of the pole piece along the first direction X are just fixed by the fixing mechanism 2, and the surface of the middle part of the pole piece is exposed.

[0059] When the stacking machine is working, the positive electrode sheet is fixed on one of the stacking racks, and the negative electrode sheet is fixed on the other stacking rack. When the transfer device 1 adopts a rotating rack, the rotating racks of the two stacking racks rotate in opposite directions, so that the positive electrode sheets and the negative electrode sheets are alternately stacked on the stacking table 4. At the same time, the diaphragm 64 is covered on the electrode sheets to complete the stacking operation.

[0060] In this embodiment, two fixing mechanisms 2 respectively fix one end of the electrode sheet, and then transfer the electrode sheet to the stacking table 4. During the entire transfer process, only part of the surface of the end of the electrode sheet is blocked by the fixing mechanism 2, while the rest of the surface of the electrode sheet can be exposed, thereby facilitating dust removal and appearance inspection of most areas of the two surfaces of the electrode sheet, so as to reduce the probability of quality problems in the electrode sheet, thereby improving the qualified rate of the stacked battery cell.

[0061] Optionally, refer to Figure 1-Figure 3 The fixing mechanism 2 includes a fixing member 21, which is connected to the transfer device 1 and is used to fix the pole piece.

[0062] Specifically, a fixing member 21 is used to fix the end of the electrode along the first direction X. When the electrode is transported, most of the surface of the electrode can be exposed, thereby facilitating dust removal and appearance inspection on both sides of the electrode, so as to reduce the probability of quality problems in the electrode, thereby improving the qualified rate of the laminated battery.

[0063] It should be noted that the fixing member 21 can fix the end of the pole piece by clamping or by adsorption. The embodiment of the present application does not limit the specific fixing method, and technical personnel in this field can design it according to actual production needs.

[0064] Optionally, refer to Figure 3 and Figure 4 , the fixing member 21 is a suction cup.

[0065] Specifically, the upper surface of the suction cup is provided with negative pressure exhaust holes, which are used to absorb the electrode. The transfer device 1 is fixedly connected with a horizontal motor 3, and the output end of the horizontal motor 3 is connected to the suction cup, so that during the rotation process, the horizontal motor 3 is used to keep the upper surface of the suction cup always horizontal.

[0066] In this embodiment, the electrode piece is placed on the upper surface of the suction cup, and the suction cup adsorbs and fixes the end of the electrode piece. When the electrode piece is transported, most of the surface of the electrode piece can be exposed, thereby facilitating dust removal and appearance inspection on both sides of the electrode piece, thereby reducing the probability of quality problems in the electrode piece and thereby improving the qualified rate of the stacked battery cell.

[0067] In addition, in the prior art, the adsorption surface of the suction cup used for the stacking operation is generally set downward. When the suction cup moves downward and adsorbs the pole piece, the suction cup will generate downward pressure on the pole piece, which can easily cause damage to the pole piece. In the present embodiment, the pole piece is located above the suction cup, and the suction cup lifts the pole piece. The pole piece can maintain contact with the suction cup and be adsorbed by the suction cup with the help of its own gravity, thereby reducing the probability of damage to the pole piece during transportation.

[0068] Optionally, refer to Figure 3 and Figure 4 The fixing mechanism 2 also includes a correcting component 22, which is connected to the fixing member 21, and is used to drive the fixing member 21 to move along the first direction X and / or the second direction Y, wherein the second direction Y is perpendicular to the first direction X, and the second direction Y and the first direction X are located in the same horizontal plane.

[0069] Specifically, the deflection correction component 22 is connected to the fixing member 21, and the deflection correction component 22 can drive the fixing member 21 to move along the first direction X, so that the pole piece placed on the fixing member 21 is aligned with the lamination table 4 in the first direction X, so as to reduce the position error of the stacked pole pieces and improve the processing accuracy.

[0070] In some embodiments, the correction component 22 is connected to the fixing member 21, and the correction component 22 can drive the fixing member 21 to move along the second direction Y, so that the pole piece placed on the fixing member 21 is aligned with the stacking table 4 in the second direction Y, so as to reduce the position error of the stacked pole pieces and improve the processing accuracy.

[0071] In other embodiments, the correction component 22 is connected to the fixing member 21, and the correction component 22 can drive the fixing member 21 to move along the first direction X and the second direction Y respectively, so that the pole piece placed on the fixing member 21 is aligned with the stacking table 4 in the first direction X and the second direction Y, so as to reduce the position error of the stacked pole pieces and further improve the processing accuracy.

[0072] Optionally, refer to Figures 1 to 3 The transfer device 1 includes a rotating shaft 11 and a connecting rod 12 ; the connecting rod 12 is fixed to the circumferential side of the rotating shaft 11 , and the connecting rod 12 is connected to the fixing mechanism 2 .

[0073] Specifically, if Figures 1 to 3As shown, the transfer device 1 is in the form of a rotating frame, including a rotating shaft 11 and a connecting rod 12. At least one fixing device is arranged on the peripheral side of the rotating shaft 11, and each fixing device includes two fixing mechanisms 2. Therefore, at least two connecting rods 12 are fixed on the peripheral side of the connecting rod 12. The end of the connecting rod 12 away from the rotating shaft 11 is fixedly connected to a horizontal motor 3, and the connecting rod 12 is connected to the fixing mechanism 2 through the horizontal motor 3. The rotating shaft 11 rotates under the drive of the driving device, driving the fixing mechanism 2 on the connecting rod 12 to rotate around the rotating shaft 11. Compared with the method of combining translation in two orthogonal directions, this method is more efficient for pole piece transfer and the device is simpler.

[0074] Optionally, refer to Figures 1 to 3 The stack support includes at least two fixing devices, each fixing mechanism of the fixing device is connected to one connecting rod 12 , and at least two fixing mechanisms 2 are distributed around the circumference of the rotating shaft 11 .

[0075] Specifically, there may be two, three or more fixing devices on each rotating shaft 11. In this embodiment, there are six fixing devices on each rotating shaft 11, and the fixing mechanism 2 of each fixing device is connected to the rotating shaft 11 through a connecting rod 12, and the six fixing devices are evenly arranged around the circumference of the rotating shaft 11. When the rotating shaft 11 rotates a certain angle, one fixing device can approach the stacking table 4 for the stacking process. During the rotation of the rotating shaft 11, the six fixing devices approach the stacking table 4 in turn, thereby improving the stacking efficiency.

[0076] Optionally, refer to Figure 2-Figure 4 The deflection correction component 22 includes: a first deflection correction platform 221, which is connected to the transfer device 1; a first sliding member 222, which is slidably connected to the first deflection correction platform 221; a first driving member 223, which is connected to the first sliding member 222, and the first driving member 223 drives the first sliding member 222 to move, and the first sliding member 222 drives the fixing member 21 to move in one of the first direction X and the second direction Y.

[0077] Specifically, the first deflection correction platform 221 is fixedly connected to the horizontal motor 3 on the transfer device 1 so that the upper surface of the fixing member 21 remains horizontal; the upper surface of the first deflection correction platform 221 is provided with guide rails distributed along the second direction Y, the bottom of the first sliding member 222 is provided with a slide groove for the guide rail to be embedded, and the top of the first sliding member 222 is connected to the fixing member 21. In addition, the first driving member 223 is a motor, which is fixedly connected to the first deflection correction platform 221, and the output end of the motor is connected to a lead screw, and the end of the lead screw away from the motor passes through the first sliding member 222 and is rotatably connected to the first deflection correction platform 221, and the lead screw is threadedly connected to the first sliding member 222.

[0078] When the motor rotates, it drives the lead screw to rotate, thereby driving the first sliding member 222 to slide back and forth along the second direction Y to adjust the position of the fixing member 21 along the second direction Y, and then adjust the position of the pole piece along the second direction Y to reduce the position error of the stacked pole pieces and improve the processing accuracy of the stacked battery cell.

[0079] In some embodiments, the upper surface of the first deflection correcting platform 221 may also be provided with guide rails distributed along the first direction X, the bottom of the first sliding member 222 is provided with a slide groove for the guide rail to be embedded, and the top of the first sliding member 222 is connected to the fixing member 21. In addition, the first driving member 223 is a motor, the motor is fixedly connected to the first deflection correcting platform 221, the output end of the motor is connected to a lead screw, the end of the lead screw away from the motor passes through the first sliding member 222 and is rotatably connected to the first deflection correcting platform 221, and the lead screw is threadedly connected to the first sliding member 222.

[0080] When the motor rotates, it drives the lead screw to rotate, thereby driving the first sliding member 222 to slide back and forth along the first direction X to adjust the position of the fixing member 21 along the first direction X, and then adjust the position of the pole piece along the first direction X to reduce the position error of the stacked pole pieces and improve the processing accuracy of the stacked battery core.

[0081] It should be noted that the first driving member 223 can be composed of a motor and a screw rod, and the first driving member 223 can also be an electric push rod. The embodiment of the present application does not limit the specific structure of the first driving member 223. Technical personnel in this field can select any driving element that can generate linear driving force according to actual needs.

[0082] Optionally, refer to Figure 2-Figure 4 The deflection correcting assembly 22 further includes: a second deflection correcting platform 224, which is fixedly connected to the first sliding member 222; a second sliding member 225, which is slidably connected to the second deflection correcting platform 224; a second driving member 226, which is connected to the second sliding member 225, and the second driving member 226 drives the second sliding member 225 to move, and the second sliding member 225 drives the fixed member 21 to reciprocate along the other direction of the first direction X and the second direction Y.

[0083] Specifically, the second deflection correcting platform 224 is located above the first deflection correcting platform 221 and on the side of the first sliding member 222 away from the first deflection correcting platform 221, and the second deflection correcting platform 224 is fixedly connected to the top of the first sliding member 222; a guide rail is arranged on the second deflection correcting platform 224 along the first direction X, and the guide rail on the second deflection correcting platform 224 is arranged perpendicular to the guide rail on the first deflection correcting platform 221, the top of the second sliding member 225 is connected to the fixed member 21, and the bottom of the second sliding member 225 is provided with a slide groove for the guide rail on the second deflection correcting platform 224 to be embedded, and the second driving member 226 is a motor, which is fixedly connected to the top of the second deflection correcting platform 224, and a lead screw is fixedly connected to the output end of the motor, and the end of the lead screw away from the motor passes through the second sliding member 225 and is rotatably connected to the second deflection correcting platform 224, and the second sliding member 225 is threadedly connected to the lead screw.

[0084] When the motor on the first deflection correcting platform 221 rotates, it drives the lead screw to rotate, thereby driving the first sliding member 222 to slide back and forth along the second direction Y. The first sliding member 222 drives the second deflection correcting platform 224, the second sliding member 225 and the fixed member 21 to move together to adjust the position of the fixed member 21 along the second direction Y, and then adjust the position of the pole piece along this direction, so as to reduce the position error of the stacked pole pieces and improve the processing accuracy of the laminated battery core; when the motor on the second deflection correcting platform 224 rotates, it drives the corresponding lead screw to rotate, thereby driving the second sliding member 225 to slide back and forth along the first direction X, so as to adjust the position of the fixed member 21 along the first direction X, and then adjust the position of the pole piece along the first direction X, so as to reduce the position error of the stacked pole pieces and further improve the processing accuracy of the laminated battery core.

[0085] In other embodiments, the guide rails on the first deflection correcting platform 221 may be arranged along the first direction X, and the guide rails on the second deflection correcting platform 224 may be arranged along the second direction Y; the motor on the first deflection correcting platform 221 is used to adjust the position of the fixing member 21 along the first direction X, and the motor on the second deflection correcting platform 224 is used to adjust the position of the fixing member 21 along the second direction Y.

[0086] It should be noted that the second driving member 226 can be composed of a motor and a screw assembly, or an electric push rod. The embodiment of the present application does not limit the specific structure of the second driving member 226. Technical personnel in this field can select any driving element that can generate linear driving force according to actual needs.

[0087] Reference Figure 1 and Figure 2 This embodiment also provides a laminating machine, comprising a laminating table 4 for stacking pole pieces and a laminating bracket as described above; the two laminating brackets are arranged opposite to each other, the laminating table 4 is located between the two laminating brackets, and the two fixing mechanisms 2 of each laminating bracket are arranged at intervals along the first direction X.

[0088] Specifically, if Figure 1 and Figure 2 As shown, when the laminating machine is working, the positive electrode sheet is fixed on one of the laminating brackets, and the negative electrode sheet is fixed on the other laminating bracket. The two ends of the electrode sheet along the first direction X are fixed by the fixing structure, and the surface of the middle part of the electrode sheet is exposed, which is convenient for dust removal and appearance inspection of most areas of the two surfaces of the electrode sheet, so as to reduce the probability of quality problems of the electrode sheet, thereby improving the qualified rate of the laminated battery cell.

[0089] Optionally, refer to Figure 2 and Figure 5 The lamination table 4 is provided with lamination clamps 41 at both ends along the second direction Y, and the lamination clamps 41 are used to fix the stacked pole pieces. The second direction Y is perpendicular to the first direction X, and the second direction Y and the first direction X are located in the same horizontal plane.

[0090] Specifically, the number of the lamination jaws 41 can be multiple, and the multiple lamination jaws 41 are evenly distributed at both ends of the lamination platform 4 along the second direction Y; the lamination jaws 41 can move back and forth along the second direction Y, and before the pole piece is placed on the lamination platform 4, part of the lamination jaws 41 moves away from the lamination platform 4 until the part of the lamination jaws 41 does not affect the stacking of the pole piece. When the pole piece is placed on the lamination platform 4, the part of the lamination jaws 41 moves toward the side close to the lamination platform 4 until these lamination jaws 41 can clamp and fix the pole piece. At the same time, another part of the lamination jaws 41 moves away from the lamination platform 4 until it is pulled out from under the pole piece to wait for the next pole piece to be fixed.

[0091] In this embodiment, the lamination jaws 41 are used to alternately fix the pole pieces, thereby improving the stability of the pole pieces during the lamination process, reducing the probability of the pole pieces moving, and thus improving the accuracy of lamination.

[0092] Optionally, refer to Figure 2 and Figure 5 , and also includes a lifting component 5, which is connected to the stacking platform 4, and the lifting component 5 is used to drive the stacking platform 4 to move along the direction of gravity.

[0093] Specifically, the lifting assembly 5 includes a lifting rod and a driving member. A bracket is arranged under the stacking table 4. The lifting rod is slidably connected to the bracket. The lifting rod is fixedly connected to the stacking table 4. The output end of the driving member is connected to the lifting rod for driving the lifting rod to reciprocate along the direction of gravity, i.e., the third direction Z.

[0094] In this embodiment, each time a pole piece is stacked, the lifting rod will drive the stacking platform 4 to descend a certain distance along the third direction Z, thereby ensuring that the height position of the stacking pieces remains unchanged.

[0095] It should be noted that the driving member can be a cylinder or an electric push rod, as long as it can drive the lifting rod to move back and forth along the third direction Z. The embodiment of the present application does not limit it.

[0096] In some embodiments, there are two lifting rods, which are respectively arranged at the two ends of the stacking platform 4 along the second direction Y. The two lifting rods are respectively fixedly connected to the stacking platform 4, and the two lifting rods are respectively provided with driving parts; the two lifting rods are lifted and lowered synchronously, thereby improving the lifting stability of the stacking platform 4.

[0097] Optionally, refer to Figure 2 and Figure 6 , including a traction component 6, which is arranged at one end of the stacking table 4 along the first direction X, and the traction component 6 includes: a traction bracket 61; a traction claw 62, the traction claw 62 is used to pull the diaphragm 64; a traction driving member 63, the traction driving member 63 is respectively connected to the traction bracket 61 and the traction claw 62, and is used to drive the traction claw 62 to reciprocate along the first direction X.

[0098] Specifically, the traction bracket 61 is arranged at one end of the stacking table 4, and the other end is provided with a diaphragm 64. During processing, the traction clamp 62 pulls the diaphragm 64 so that the diaphragm 64 covers the pole pieces, and then the pole pieces are stacked.

[0099] It should be noted that the pulling drive member may be a linear motor or an electric push rod, as long as it can drive the pulling clamp 62 to reciprocate along the first direction X, and the embodiment of the present application does not limit it.

[0100] Optionally, refer to Figure 2 and Figure 7 , further comprising a cutting assembly 7, wherein the cutting assembly 7 is disposed at the other end of the stacking table 4 along the first direction X, and wherein the cutting assembly 7 comprises: a cutting bracket 71; a cutting member 72, wherein the cutting member 72 is used to cut the diaphragm 64; and a cutting driving member 73, wherein the cutting driving member 73 is respectively connected to the cutting bracket 71 and the cutting member 72, and wherein the cutting driving member 73 is used to drive the cutting member 72 to reciprocate along a second direction Y, wherein the second direction Y is perpendicular to the first direction X, and the second direction Y and the first direction X are located in the same horizontal plane.

[0101] Specifically, the cutting member 72 may be a hot cutting belt, which can be driven by the cutting driving member 73 to reciprocate along the second direction Y. After the diaphragm 64 is covered on the electrode, the cutting driving member 73 drives the hot cutting belt to move along the second direction Y. When the hot cutting belt contacts the diaphragm 64, the hot cutting belt itself generates high temperature to melt the diaphragm 64, and then the hot cutting belt returns to the initial position to wait for cutting the diaphragm 64 again.

[0102] It should be noted that the cutting drive member 73 may be a linear motor or an electric push rod, as long as it can drive the cutting member 72 to reciprocate along the second direction Y, and the embodiment of the present application does not limit it.

[0103] Optionally, refer to Figure 2 and Figure 8 , also includes a positioning detection device 8, the positioning detection device 8 is set at both ends of the stacking table 4 along the second direction Y, the positioning detection device 8 includes: a positioning detection bracket 81; two groups of positioning detection components 82, the two groups of positioning detection components 82 are connected to the positioning detection bracket 81, the two groups of positioning detection components 82 are arranged relatively spaced along the gravity direction, and a positioning detection space for the pole piece to pass through is formed between the two groups of positioning detection components 82.

[0104] Specifically, the positioning detection bracket 81 is staggered with the transfer device 1, and the two sets of positioning detection components 82 are relatively arranged along the gravity direction, that is, the third direction Z. When the pole piece rotates with the transfer device 1, it can just pass through the positioning detection space formed between the two sets of positioning detection components 82. When the pole piece enters the positioning detection space, the positioning detection component 82 detects the position of the pole piece to determine whether the position of the pole piece is accurate, and at the same time sends the detection result to the correction component 22. The correction component 22 adjusts the position of the pole piece based on the detected data, thereby improving the accuracy of the lamination.

[0105] Optionally, a dust removal device is further included; the dust removal device has an air outlet, and the air outlet is arranged near the positioning detection component 82. Specifically, the stacking machine also includes a dust removal device, the dust removal device has an air outlet, and the air outlet is close to the positioning detection component 82. When the pole piece enters the positioning detection space, the dust removal device provides a certain purge airflow, and discharges the airflow through the air outlet, and uses the airflow to take away the dust on the two opposite surfaces of the pole piece, so as to achieve the purpose of dust cleaning, thereby reducing the probability of quality problems of the pole piece, so as to improve the qualified rate of the stacked battery cell.

[0106] Optionally, refer to Figure 2 and Figure 8 The positioning detection component 82 includes at least one image sensor 821, and the image sensor 821 is connected to the positioning detection bracket 81.

[0107] Specifically, the positioning detection component 82 may be composed of a single image sensor 821 or a plurality of image sensors 821 arranged along the first direction X. By increasing the number of image sensors 821, the accuracy of positioning detection can be improved.

[0108] Optionally, refer to Figure 1, also includes a conveyor belt, and the conveyor belt is arranged on the side of the two stacking brackets facing away from each other. The conveyor belt is located between the two fixing mechanisms 2 arranged opposite to each other along the first direction X, and the conveyor belt is used to transport the pole piece to the fixing mechanism 2.

[0109] Specifically, the conveyor belt is located between two fixing mechanisms 2 arranged relatively along the first direction X. Along the first direction X, the size of the pole piece is larger than the size of the conveyor belt. When the pole piece is placed on the conveyor belt, the two ends of the pole piece along the first direction X extend from the conveyor belt and hang in the air, thereby facilitating the transfer of the two ends of the pole piece to the suction cup.

[0110] In addition, the surface of the conveyor belt is provided with negative pressure suction holes, which are used to adsorb the electrode. When the electrode is transported, the electrode is adsorbed and fixed by the negative pressure suction holes. When the electrode is transferred to the suction cup, the negative pressure suction holes on the conveyor belt stop working. At this time, the electrode is separated from the conveyor belt and adsorbed and fixed by the suction cup.

[0111] In this embodiment, when the stacking machine is working, the two rotating shafts rotate in opposite directions and at the same speed. The pole piece is first transported to the corresponding suction cup by the conveyor belt. After the suction cup absorbs the pole piece, the pole piece rotates with the suction cup until the pole piece enters the positioning detection space. Then the image sensor 821 detects the position of the pole piece, and uses the airflow blown out of the air outlet to remove dust on the pole piece. The image sensor 821 transmits the detected position information to the correction component 22, and the correction component 22 corrects the pole piece based on the received position deviation data. Then the electrode is transferred to the stacking table 4, the stacking jaws 41 fix the electrode, and then the suction cup is closed and separated from the electrode, and the suction cup continues to rotate with the transfer device 1 to wait for the next electrode to be sucked. At the same time, the lifting assembly 5 drives the stacking table 4 to move down to ensure that the stacking height position remains unchanged; then the diaphragm 64 is actively unwound, and the traction jaws 62 pull the diaphragm 64 to a set length, and then the stacking jaws 41 fix the diaphragm 64, and then the cutting piece 72 is used to cut the diaphragm 64; the above process is repeated until the specified number of layers are stacked.

[0112] Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0113] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A laminated support, characterized in that: include: A transfer device, the transfer device is used to transfer the pole piece to the lamination table; The fixing device comprises two fixing mechanisms which are arranged at intervals, and both of the fixing mechanisms are connected to the transfer device, wherein one of the fixing mechanisms is used to fix one end of the pole piece, and the other fixing mechanism is used to fix the other end of the pole piece.

2. The laminate bracket according to claim 1, characterized in that: The fixing mechanism comprises a fixing member, the fixing member is connected to the transfer device, and the fixing member is used to fix the pole piece.

3. The laminate bracket according to claim 2, characterized in that: The fixing member is a suction cup.

4. The laminate bracket according to claim 2, characterized in that: The fixing mechanism also includes a correction component, which is connected to the fixing member and is used to drive the fixing member to move along the X direction and / or the Y direction, wherein the Y direction is perpendicular to the X direction and the Y direction and the X direction are located in the same horizontal plane.

5. The laminate bracket according to claim 1, characterized in that: The transfer device includes a rotating shaft and a connecting rod; The connecting rod is fixed to the peripheral side of the rotating shaft, and the connecting rod is connected to the fixing mechanism.

6. The laminate bracket according to claim 5, characterized in that: The stack support comprises at least two fixing devices, a fixing mechanism of each fixing device is connected to one connecting rod, and at least two fixing mechanisms are distributed around the circumference of the rotating shaft.

7. The laminate bracket according to claim 4, characterized in that: The correction component comprises: a first deflection-correcting platform, the first deflection-correcting platform being connected to the transfer device; A first sliding member, the first sliding member being slidably connected to the first deviation correcting platform; A first driving member is connected to the first sliding member, the first driving member drives the first sliding member to move, and the first sliding member drives the fixing member to move along one of the X direction and the Y direction.

8. The laminate support according to claim 7, characterized in that: The correction component also includes: a second deflection correcting platform, wherein the second deflection correcting platform is fixedly connected to the first sliding member; a second sliding member, the second sliding member being slidably connected to the second deflection correcting platform; The second driving member is connected to the second sliding member, the second driving member drives the second sliding member to move, and the second sliding member drives the fixing member to reciprocate along the other direction of the X direction and the Y direction.

9. A lamination machine, characterized in that: A lamination stand comprising a lamination table for stacking pole pieces and a lamination support as claimed in any one of claims 1 to 8; The two lamination supports are arranged opposite to each other, the lamination platform is located between the two lamination supports, and the two fixing mechanisms of each lamination support are arranged at intervals along the X direction.

10. The laminating machine according to claim 9, characterized in that: The stacking platform is provided with stacking claws at both ends along the Y direction, and the stacking claws are used to fix the stacked pole pieces. The Y direction is perpendicular to the X direction, and the Y direction and the X direction are located in the same horizontal plane.

11. The laminating machine according to claim 9, characterized in that: It also includes a lifting component, which is connected to the stacking platform and is used to drive the stacking platform to move along the direction of gravity.

12. The laminating machine according to claim 9, characterized in that: It also includes a traction assembly, which is arranged at one end of the lamination platform along the X direction, and the traction assembly includes: Traction bracket; A traction clamping jaw, wherein the traction clamping jaw is used to pull the diaphragm; A traction driving member, wherein the traction driving member is respectively connected to the traction bracket and the traction clamping claw, and is used for driving the traction clamping claw to reciprocate along the X direction.

13. The laminating machine according to claim 11, characterized in that: It also includes a cutting assembly, which is arranged at the other end of the lamination table along the X direction, and includes: Cutting brackets; A cutting piece, the cutting piece is used to cut the diaphragm; A cutting drive member, wherein the cutting drive member is connected to the cutting bracket and the cutting member respectively, and is used to drive the cutting member to reciprocate along the Y direction, wherein the Y direction is perpendicular to the X direction, and the Y direction and the X direction are located in the same horizontal plane.

14. The laminating machine according to claim 9, characterized in that: It also includes a positioning detection device, the stacking table is provided with the positioning detection device, and the positioning detection device includes: Positioning detection bracket; Two groups of positioning detection components are connected to the positioning detection bracket. The two groups of positioning detection components are arranged at a relative interval along gravity, and a positioning detection space for the pole piece to pass through is formed between the two groups of positioning detection components.

15. The laminating machine according to claim 14, characterized in that: Also includes a dust removal device; The dust removal device has an air outlet, and the air outlet is arranged close to the positioning detection component.

16. The laminating machine according to claim 14, characterized in that: The positioning detection component includes at least one image sensor, and the image sensor is connected to the positioning detection bracket.

17. The laminating machine according to claim 9, characterized in that: It also includes a conveyor belt, which is arranged on the sides of the two stacking brackets facing away from each other, and is located between the two fixing mechanisms arranged opposite to each other along the X direction. The conveyor belt is used to transport the pole pieces to the fixing mechanisms.

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