A laminating machine

Abstract

The application discloses a lamination machine, comprising: a plurality of lamination processing units; the lamination processing unit comprises: a feeding system and a lamination system; the feeding system comprises: two conveying mechanisms; the conveying mechanism comprises: a bottom conveying belt, a top conveying belt, a material hitting mechanism and a vertical conveying belt; the top conveying belt is used for sucking the pole piece on the bottom conveying belt; the material hitting mechanism is used for hitting the pole piece; the vertical conveying belt is used for transporting the pole piece to a transfer station; the lamination system comprises: a transfer mechanism and a lamination table; the transfer mechanism is used for transferring the pole piece to the lamination table. The plurality of lamination processing units are sequentially and adjacently distributed; the tail end of the top conveying belt and the head end of the next bottom conveying belt are overlapped in vertical projection. The lamination machine provided by the scheme can suck the pole piece on the bottom conveying belt to the top conveying belt through the top conveying belt, hit the pole piece through the material hitting mechanism to complete material transfer, the plurality of lamination processing units can synchronously perform the pole piece lamination process, and the production efficiency of the laminated battery is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of laminated battery manufacturing, and particularly to a laminating machine. BACKGROUND

[0002] In the processing of laminated batteries, the positive and negative electrode sheets of the battery need to be laminated. In the process of feeding the positive and negative electrode sheets to the laminating machine, the existing laminating machine generally uses a mechanical hand to complete the actions of grabbing, lifting, transferring, and lowering the electrode sheets by lifting. The transmission belt that transmits the electrode sheets needs to be stopped each time the mechanical hand grabs, which makes the logistics transportation efficiency of the laminated battery low. SUMMARY

[0003] Therefore, the present application aims to provide a laminating machine to solve the problem of low feeding efficiency of the existing laminating machine.

[0004] To achieve the above technical purpose, the present application provides a laminating machine, comprising: a plurality of laminating processing units;

[0005] The laminating processing unit comprises: a feeding system and a laminating system;

[0006] The feeding system comprises: two conveying mechanisms;

[0007] The conveying mechanism comprises: a bottom surface conveyor belt, a top surface conveyor belt, a material hitting mechanism, and a vertical conveyor belt;

[0008] The top surface conveyor belt and the bottom surface conveyor belt are arranged in parallel, and the top surface conveyor belt is located above the bottom surface conveyor belt;

[0009] The leading end of the top surface conveyor belt and the trailing end of the bottom surface conveyor belt overlap in vertical projection;

[0010] The top surface conveyor belt is used to suck the electrode sheet on the bottom surface conveyor belt;

[0011] The material hitting mechanism is arranged beside the top surface conveyor belt and is used to hit the electrode sheet on the top surface conveyor belt;

[0012] The vertical conveyor belt is arranged below the material hitting mechanism and is perpendicular to the top surface conveyor belt, and is used to transport the electrode sheet hit by the material hitting mechanism to a transfer station;

[0013] The laminating system comprises: a transfer mechanism and a laminating table;

[0014] The two conveying mechanisms are symmetrically arranged about the laminating table and are respectively used to convey positive and negative electrode sheets;

[0015] The transfer mechanism is provided between the transfer station and the stacking table, and is used to transfer the electrode to the stacking table;

[0016] The plurality of lamination processing units are sequentially and adjacently distributed;

[0017] The tail end of the top conveyor belt in one lamination processing unit overlaps with the head end of the bottom conveyor belt in the next adjacent lamination processing unit in vertical projection.

[0018] Furthermore, the lamination system further comprises: a pole piece pressing mechanism;

[0019] The pole piece pressing mechanism comprises: a composite cam assembly and a pole piece pressing tool;

[0020] The composite cam assembly includes: a rotating motor, a guide plate, a linear cam, a flip cam and a connecting piece;

[0021] The rotating motor is arranged on the stacking table;

[0022] The guide plate is arranged on the stacking table, and a guide groove is arranged on the guide plate;

[0023] The linear cam is slidably arranged on the stacking table, and a strip groove is arranged on the linear cam;

[0024] The first end of the flip cam is slidably disposed in the guide groove via a rotating wheel, and the second end is rotatably disposed on the linear cam;

[0025] One end of the connecting member is slidably arranged in the strip groove through a rotating wheel, and the other end is transmission-connected to the output end of the rotating motor;

[0026] The pole piece pressing knife is arranged on the turning cam at a position close to the first end;

[0027] The rotary motor is used to drive the connecting member to rotate, thereby driving the linear cam to slide so that the pressure cam slides along the guide groove.

[0028] Furthermore, the lamination system further comprises: a diaphragm pressing mechanism;

[0029] The diaphragm pressing knife mechanism includes: a horizontal motion component, a vertical motion component and a diaphragm pressing knife;

[0030] The diaphragm pressing knife is arranged on the vertical motion component;

[0031] The vertical motion component is arranged on the horizontal motion component and is used to drive the diaphragm pressing knife to move in the vertical direction;

[0032] The horizontal motion component is arranged on the stacking table and is used to drive the vertical motion component to move in the horizontal direction;

[0033] The horizontal motion component and the vertical motion component are arranged to move synchronously.

[0034] Furthermore, the horizontal motion assembly includes: a horizontal motor, a horizontal transmission member and a horizontal cam;

[0035] The vertical motion assembly includes: a vertical motor, a vertical transmission member and a vertical cam;

[0036] The horizontal motor and the vertical motor are both arranged on the stacking table;

[0037] The horizontal cam is slidably arranged on the stacking table along the horizontal direction, and a vertical sliding groove is provided on the horizontal cam;

[0038] One end of the horizontal transmission member is slidably disposed in the vertical slide groove via a rotating wheel, and the other end is transmission-connected to the horizontal motor;

[0039] The vertical cam is slidably arranged on the horizontal cam along the vertical direction, and a horizontal sliding groove is provided on the vertical cam;

[0040] One end of the vertical transmission member is slidably disposed in the horizontal slide groove via a rotating wheel, and the other end is transmission-connected to the vertical motor;

[0041] The diaphragm pressing knife is arranged on the vertical cam;

[0042] The horizontal motor is used to drive the horizontal transmission member to rotate so that the horizontal cam slides horizontally;

[0043] The vertical motor is used to drive the vertical transmission member to rotate so that the vertical cam slides vertically.

[0044] Furthermore, the guide groove includes an arc portion and a vertical portion that are interconnected;

[0045] The arc portion is located above the vertical portion;

[0046] The pole piece pressing knife is located at the front end of the guide groove;

[0047] The arc-shaped portion is concave toward the front end.

[0048] Furthermore, the punching mechanism includes: a punching motor and a plurality of output rods;

[0049] The punching motor is arranged on the top conveyor belt;

[0050] The top conveyor belt is paved with a plurality of sub-conveyor belts;

[0051] Adjacent sub-conveyor belts are spaced apart to form gaps;

[0052] The top conveyor belt is provided with a plurality of output rod through holes corresponding to the output rods in a one-to-one manner at the gap positions;

[0053] One end of the output rod is transmission-connected to the punching motor, and the other end passes through the output rod through hole.

[0054] Furthermore, the transfer mechanism includes: a mobile platform and two transfer manipulators;

[0055] The movable platform is slidably arranged between the transfer station and the stacking platform;

[0056] The two transfer robots can be rotatably arranged on the mobile platform.

[0057] Furthermore, the transfer robot is provided with an adsorption platform;

[0058] The bottom surface of the adsorption platform is provided with a plurality of suction cup openings and a plurality of through openings;

[0059] The suction cup opening is flush with the through opening;

[0060] A movable suction cup movable in the vertical direction is provided in the through opening;

[0061] The adsorption end of the movable suction cup extends out of the bottom surface of the adsorption platform.

[0062] Furthermore, the bottom surface of the adsorption platform is provided with an exhaust groove running through in a horizontal direction.

[0063] Furthermore, the suction cup opening and the movable suction cup are both provided with air vents;

[0064] The gas port is connected with a vacuum pipeline and a boost pipeline;

[0065] The vacuum pipeline is used to generate a vacuum adsorption force at the gas port;

[0066] The pressurizing pipeline is used for blowing air into the air port.

[0067] As can be seen from the above technical solutions, the present application provides a laminating machine, comprising: a plurality of laminating processing units; the laminating processing units comprise: a feeding system and a laminating system; the feeding system comprises: two conveying mechanisms; the conveying mechanisms comprise: a bottom conveyor belt, a top conveyor belt, a beating mechanism and a vertical conveyor belt; the top conveyor belt is used to absorb the electrode sheets on the bottom conveyor belt; the beating mechanism is used to take down the electrode sheets on the top conveyor belt; the vertical conveyor belt is arranged below the beating mechanism and is perpendicular to the top conveyor belt, and is used to transport the electrode sheets to the transfer station; the laminating system comprises: a transfer mechanism and a stacking table; the transfer mechanism is used to transfer the electrode sheets to the stacking table. A plurality of the laminating processing units are distributed adjacent to each other in sequence; the tail end of the top conveyor belt in one laminating processing unit overlaps with the head end of the bottom conveyor belt in the next adjacent laminating processing unit in vertical projection. The stacking machine provided by this solution can use the top conveyor to suck the electrodes from the bottom conveyor onto the top conveyor. Then, the electrode-ejecting mechanism quickly knocks the electrode off the vertical conveyor, which can improve feeding efficiency. In addition, by using multiple stacking processing units to perform the electrode stacking process simultaneously, the production efficiency of stacked batteries in practical applications can be further increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0069] Figure 1 A top view of the overall structure of a laminating machine provided in an embodiment of the present application;

[0070] Figure 2 A side view of a lamination processing unit of a lamination machine provided in an embodiment of the present application;

[0071] Figure 3 A schematic diagram of a lamination system of a lamination machine provided in an embodiment of the present application;

[0072] Figure 4 A schematic diagram of a stacking table of a stacking machine provided in an embodiment of the present application;

[0073] Figure 5 A schematic diagram of a diaphragm pressing mechanism of a laminating machine provided in an embodiment of the present application;

[0074] Figure 6 A schematic diagram of a pole piece pressing mechanism of a lamination machine provided in an embodiment of the present application;

[0075] Figure 7This is an internal disassembly diagram of a pole piece pressing mechanism of a lamination machine provided in an embodiment of the present application;

[0076] Figure 8 A schematic diagram of the internal structure of a pole piece pressing mechanism of a lamination machine provided in an embodiment of the present application;

[0077] Figure 9 A disassembly diagram of a diaphragm press knife of a lamination machine provided in an embodiment of the present application;

[0078] Figure 10 A top perspective view of a top conveyor belt of a laminating machine provided in an embodiment of the present application;

[0079] Figure 11 A bottom-up perspective view of a top conveyor belt of a laminating machine provided in an embodiment of the present application;

[0080] Figure 12 A schematic diagram of a transfer mechanism of a stacking machine provided in an embodiment of the present application;

[0081] Figure 13 A schematic diagram of an adsorption table of a laminating machine provided in an embodiment of the present application.

[0082] In the figure: 100, diaphragm press mechanism; 110, horizontal motion assembly; 111, horizontal motor; 112, horizontal transmission member; 113, horizontal cam; 114, vertical slide; 120, vertical motion assembly; 121, vertical motor; 122, vertical transmission member; 123, vertical cam; 124, horizontal slide; 125, extension rod through hole; 130, diaphragm press; 140, elastic member; 141 , washer; 142, extension rod; 143, elastic sleeve; 200, pole piece pressing mechanism; 210, compound cam assembly; 211, rotating motor; 212, guide plate; 213, linear cam; 214, flip cam; 215, guide groove; 216, connecting piece; 217, vertical rail; 218, vertical groove; 219, strip groove; 220, pole piece pressing mechanism; 221, cylinder; 222, blade; 3 00, stacking table; 400, feeding system; 410, conveying mechanism; 411, bottom conveyor belt; 412, top conveyor belt; 413, material discharging mechanism; 414, vertical conveyor belt; 415, unloading machine; 416, collection box; 4121, vacuum pipeline; 4122, suction hole; 4123, output rod through hole; 4131, material discharging motor; 4132, output rod; 500, transfer mechanism; 510, shift Moving platform; 520, transfer robot; 521, adsorption platform; 522, suction cup opening; 523, through-port; 524, movable suction cup; 525, exhaust groove; 526, extension plate; 527, extension suction cup; 528, air port; 529, suction cup elastic sleeve; 600, pole piece; 2131, connecting tube; 2141, connecting shaft; 2151, vertical portion; 2152, arc-shaped portion; 5221, sponge suction cup. DETAILED DESCRIPTION

[0083] The following will clearly and completely describe the technical solutions of the embodiments of the present application in conjunction with the accompanying drawings. Obviously, the embodiments described are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection requested by this application.

[0084] In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they should not be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0085] In the description of the embodiments of the present application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, replaceable connections, or integral connections. They can also refer to mechanical connections or electrical connections. They can also refer to direct connections or indirect connections through an intermediate medium. They can also refer to internal connections between two components. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0086] The embodiment of the present application discloses a laminating machine.

[0087] See also Figure 1 and Figure 3 , a laminating machine provided in an embodiment of the present application includes: a plurality of laminating processing units; the laminating processing units include: a feeding system 400 and a laminating system; the feeding system 400 includes: two conveying mechanisms 410; the conveying mechanism 410 includes: a bottom conveyor belt 411, a top conveyor belt 412, a punching mechanism 413 and a vertical conveyor belt 414; the top conveyor belt 412 is arranged parallel to the bottom conveyor belt 411, and the top conveyor belt 412 is located above the bottom conveyor belt 411; the head end of the top conveyor belt 412 and the tail end of the bottom conveyor belt 411 overlap in vertical projection; the top conveyor belt 412 is used to absorb the pole piece 600 on the bottom conveyor belt 411; the punching mechanism 413 is arranged on the side of the top conveyor belt 412, and is used to The electrode 600 on the surface conveyor belt 412 is photographed; the vertical conveyor belt 414 is arranged below the material beating mechanism 413 and is perpendicular to the top conveyor belt 412, and is used to transport the electrode 600 photographed by the material beating mechanism 413 to the transfer station; the stacking system includes: a transfer mechanism 500 and a stacking table 300; two conveying mechanisms 410 are symmetrically arranged about the stacking table 300, and are used to transport the positive electrode and the negative electrode respectively; the transfer mechanism is arranged between the transfer station and the stacking table 300, and is used to transfer the electrode 600 to the stacking table 300; multiple stacking processing units are distributed adjacent to each other in sequence; the tail end of the top conveyor belt 412 in a stacking processing unit overlaps with the head end of the bottom conveyor belt 411 in the next adjacent stacking processing unit in the vertical projection.

[0088] Specifically, the top conveyor belt 412 and the bottom conveyor belt 411 are used to transport the pole piece 600 in the same direction; after the pole piece 600 is cut, it is conveyed to the bottom conveyor belt 411, and the bottom surface of the pole piece 600 abuts against the bottom conveyor belt 411. As the bottom conveyor belt 411 runs, it is conveyed from its head end to the tail end of the bottom conveyor belt 411, and then it is sucked by the top conveyor belt 412 in the overlapping area of ​​the top conveyor belt 412 and the bottom conveyor belt 411, so that the top surface of the pole piece 600 abuts against the top conveyor belt 412; wherein, the suction method can be magnetic suction, air suction, etc. Since the vertical conveyor belt 414 is perpendicular to the top conveyor belt 412, the feeding mechanism 413 can complete the steering transmission of the pole piece 600 by photographing the pole piece 600.

[0089] It should be noted that, since the speed at which the pole pieces 600 are stacked is lower than the speed at which the pole pieces 600 are cut, the existing stacking machine needs to be adapted to the stacking speed of the pole pieces 600, thereby reducing the output efficiency of the pole pieces 600. By setting up multiple stacking processing units, the punching rate of the punching mechanism 413 can be set to be equivalent to the efficiency of the stacking of the pole pieces 600. The pole pieces 600 that are not captured by the punching mechanism 413 on the top conveyor belt 412 are transported to the tail end of the top conveyor belt 412 and transported to the bottom conveyor belt 411 of the next stacking processing unit. The stacking machine provided in this embodiment can simultaneously perform the pole piece stacking process through multiple stacking processing units, and the stacking processing units do not interfere with each other, and the multiple stacking processing units are arranged in a straight line in sequence without a complicated system layout. Therefore, in the application, the number of stacking processing units can be arbitrarily set according to actual needs, thereby improving the simplicity of on-site layout in actual applications, thereby increasing the production efficiency of stacked batteries in actual applications.

[0090] In this solution, in order to reduce the interference of magnetism on the pole piece 600 , a vacuum pipeline 4121 is provided inside the top conveyor belt 412 , and a plurality of suction holes 4122 in communication with the vacuum pipeline are provided on the top conveyor belt 412 .

[0091] Specifically, after the electrode piece 600 on the bottom conveyor belt 411 is conveyed to the head end of the top conveyor belt 412, the top surface of the electrode piece 600 can be sucked through the multiple suction holes 4122 on the top conveyor belt 412. The suction holes 4122 on the top conveyor belt 412 can be evenly distributed. By providing multiple suction holes 4122, the conveyor belt can have suction force without affecting the rolling conveyance of the conveyor belt.

[0092] Accordingly, in order to ensure that the electrode 600 is firmly adsorbed on the bottom conveyor belt 411, the bottom conveyor belt 411 can be set to a structure consistent with the top conveyor belt 412; that is, a vacuum pipeline 4121 is also provided inside the bottom conveyor belt 411, and suction holes 4122 identical to the vacuum pipeline are also provided on the surface.

[0093] Furthermore, the tail end of the top conveyor belt 412 may be provided with a downward blowing valve with a blowing mouth facing downward, thereby accelerating the conveyance of the electrode 600 at the tail end of the top conveyor belt 412 to the bottom conveyor belt 411 of the next battery stacking unit.

[0094] Correspondingly, an upward blowing valve with a blowing mouth facing upward is provided at the tail end of the bottom conveyor belt 411 , thereby accelerating the transportation of the pole piece 600 at the tail end of the bottom conveyor belt 411 to the top conveyor belt 412 .

[0095] Furthermore, it also includes a quality inspector (not shown in the figure) and a blanking machine 415; the quality inspector is arranged beside the top conveyor belt 412 or the bottom conveyor belt 411, and is located in front of the feeding mechanism 413, and is used to detect whether the electrode 600 on the top conveyor belt 412 meets the requirements; the blanking machine 415 is arranged beside the top conveyor belt 412, and is located between the feeding mechanism 413 and the quality inspector, and is used to photograph the electrode 600 that does not meet the requirements.

[0096] The quality inspection instrument can be a visual inspection instrument, which determines whether the electrode 600 meets the requirements by inspecting the size of the electrode 600. The blanking machine 415 can be configured to have the same structure as the punching mechanism 413, specifically, it can knock down the electrode 4 that does not meet the requirements.

[0097] Furthermore, a collection box 416 is provided below the blanking machine 415 for collecting the pole pieces 600 photographed by the blanking machine 415 .

[0098] The above is the first embodiment provided by the present application, and the following is the second embodiment provided by the present application. Figures 4 to 9 .

[0099] On the basis of the above embodiment 1, the lamination system further includes: a pole piece pressing mechanism 200; the pole piece pressing mechanism 200 includes: a composite cam assembly 210 and a pole piece pressing knife 220; the composite cam assembly 210 includes: a rotating motor 211, a guide plate 212, a linear cam 213, a flip cam 214 and a connecting member 216; the rotating motor 211 is arranged on the stacking table 300; the guide plate 212 is arranged on the stacking table 300, and the guide plate 212 is provided with a guide groove 2 15; a linear cam 213 is slidably mounted on the stacking platform 300 and is provided with a strip groove 219; a first end of the flipping cam 214 is slidably mounted within the guide groove 215 via a rotating wheel, and a second end is rotatably mounted on the linear cam 213; one end of the connecting member 216 is slidably mounted within the strip groove 219 via a rotating wheel, and the other end is transmission-connected to the output end of the rotating motor 211; a pole piece pressing knife 220 is disposed on the flipping cam 214 near the first end. The pole piece pressing knife mechanism 200 can be mounted on a slide rail so that it can be slidably adjusted in position on the stacking platform 300.

[0100] Specifically, the turning cam 214 is slidably disposed in the guide groove 215 via the rotating wheel, which means that the turning cam 214 can rotate around the rotating wheel and can slide along the guide groove 215 via the rotating wheel. The same applies to the connecting member 216.

[0101] In this embodiment, the rotary motor 211, the connector 216, and the linear cam 213 form a linear cam motion structure, which converts the rotary power output by the rotary motor 211 into linear power. When the rotary motor 211 rotates, one end of the connector 216 slides within the strip groove 219 via a rotating wheel, driving the linear cam 213 to move linearly on the stacking platform 300. The guide plate 212 and the flipping cam 214 form a guide groove cam motion structure along the guide groove 215, converting the linear power output by the linear cam 213 to the flipping cam 214 into power for sliding along the guide groove 215. When the linear cam 213 moves linearly, it drives the second end of the flipping cam 214 to move linearly. While the first end of the flipping cam 214 rotates around the second end, it slides along the groove track of the guide groove 215, thereby driving the pole piece pressing knife 220 to perform a flipping motion consistent with the groove track of the guide groove 215. The shape of the guide groove 215 can be configured according to the required trajectory of the pole piece pressing knife 220 in actual application.

[0102] It should be noted that the rotating motor 211 can be a servo motor. Using the rotating motor 211 as a power source offers higher transmission efficiency than linear motors, cylinders, and other actuators, ensuring the speed at which the electrode pressing blade 220 moves along the guide groove 215. Compared to existing compression methods that require vertical lifting and horizontal movement, this can effectively improve the efficiency of laminating the separator and electrode during the production of laminated batteries.

[0103] The lamination system further includes a diaphragm press mechanism 100, which includes a horizontal motion assembly 110, a vertical motion assembly 120, and a diaphragm press 130. The diaphragm press 130 is mounted on the vertical motion assembly 120; the vertical motion assembly 120 is mounted on the horizontal motion assembly 110 and is used to drive the diaphragm press in a vertical direction. The horizontal motion assembly 110 is mounted on the stacking table 300 and is used to drive the vertical motion assembly 120 in a horizontal direction. The horizontal motion assembly 110 and the vertical motion assembly 120 are configured to move synchronously.

[0104] As the diaphragm is pulled and laminated onto the electrode, the horizontal motion assembly 110 drives the vertical motion assembly 120 to move horizontally, while the vertical motion assembly 120 drives the diaphragm pressing blade 130 to move vertically, causing the diaphragm pressing blade 130 to perform a downward pressing action from back to front and from top to bottom, and a lifting action from bottom to top and from front to back. The two diaphragm pressing blade mechanisms 100 operate alternately to complete the compression action during the diaphragm lamination process from front to back and back to front, preventing diaphragm wrinkles that affect the quality of the laminated battery.

[0105] There can be four electrode pressing mechanisms 200 and two diaphragm pressing mechanisms 100. The four electrode pressing mechanisms 200 are arranged in a rectangular pattern on the stacking platform 300, corresponding to the four corners of the electrode. Two diaphragm pressing mechanisms 100 are located on two opposite sides of the rectangle formed by the four electrode pressing mechanisms 200. The four electrode pressing mechanisms 200 are used to press the corners of the electrode, while the two diaphragm pressing mechanisms 100 are used to press the front and rear sides of the diaphragm in the stacking direction.

[0106] Furthermore, the horizontal motion component 110 includes: a horizontal motor 111, a horizontal transmission member 112 and a horizontal cam 113; the vertical motion component 120 includes: a vertical motor 121, a vertical transmission member 122 and a vertical cam 123; the horizontal motor 111 and the vertical motor 121 are both arranged on the stacking platform 300; the horizontal cam 113 can be slidably arranged on the stacking platform 300 along the horizontal direction, and a vertical slide groove 114 is provided on the horizontal cam 113; one end of the horizontal transmission member 112 can be slidably arranged in the vertical slide groove 114 through a rotating wheel, and the other end is transmission-connected to the horizontal motor 111. The vertical cam 123 is slidably arranged on the horizontal cam 113 along the vertical direction, and a horizontal slide groove 124 is provided on the vertical cam 123; one end of the vertical transmission member 122 is slidably arranged in the horizontal slide groove 124 through a rotating wheel, and the other end is connected to the vertical motor 121 for transmission; the diaphragm pressing knife 130 is arranged on the vertical cam 123; the horizontal motor 111 is used to drive the horizontal transmission member 112 to rotate so that the horizontal cam 113 slides horizontally; the vertical motor 121 is used to drive the vertical transmission member 122 to rotate so that the vertical cam 123 slides vertically.

[0107] In this embodiment, both the horizontal motor 111 and the vertical motor 121 are servo motors. Compared to linear motors, pneumatic cylinders, and other actuators, servo motors have the advantages of high transmission efficiency and low noise. The horizontal cam 113 can be horizontally slidable on the stacking table 300 by providing horizontal guide grooves and guide rails on the stacking table 300 and the horizontal cam 113, respectively. Similarly, the vertical cam 123 can be vertically slidable on the horizontal cam 113 by providing vertical guide grooves and guide rails on the vertical cam 123 and the horizontal cam 113, respectively.

[0108] The horizontal transmission member 112 can form a horizontal cam mechanism together with the horizontal cam 113 provided with the vertical slide 114. When the horizontal motor 111 is started, one end of the horizontal transmission member 112 rotates around the other end, and at the same time, one end thereof slides in the vertical slide 114, pulling the horizontal cam 113 to slide in the horizontal direction, thereby completing the conversion of the rotation of the horizontal motor 111 into sliding in the horizontal direction. The vertical transmission member 122 can form a vertical cam mechanism together with the vertical cam 123 provided with the horizontal slide 124. When the vertical motor 121 is started, one end of the vertical transmission member 122 rotates around the other end, and at the same time, one end thereof slides in the horizontal slide 124, pulling the vertical cam 123 to slide in the vertical direction, thereby completing the conversion of the rotation of the vertical motor 121 into sliding in the vertical direction.

[0109] It should be noted that the horizontal motor 111 and the vertical motor 121 can both be connected to a controller, and the controller can be used to control their synchronous start and stop. The horizontal motor 111 and the vertical motor 121 can each drive the horizontal transmission member 112 and the vertical transmission member 122 to perform swinging movements, respectively. This swinging movement achieves the reciprocating motion of the horizontal cam 113 and the vertical cam 123. Accordingly, a limiter can be provided on the stacking platform 300 to limit the sliding distance of the horizontal cam 113 and the vertical cam 123.

[0110] Furthermore, in this embodiment, the guide plate 212 is vertically arranged; the linear cam 213 slides vertically on the mechanism body; and the strip groove 219 is horizontally arranged. A vertical rail 217 can be provided on the guide plate 212 for the linear cam 213 to slide on, and the vertical rail 217 can have an I-shaped cross section. Accordingly, the linear cam 213 is provided with a vertical groove 218 that is adapted to the vertical rail 217 and has an I-shaped cross section.

[0111] Further, see Figure 7 The guide groove 215 includes an arc portion 2152 and a vertical portion 2151 that are connected to each other; the arc portion 2152 is located above the vertical portion 2151.

[0112] Specifically, by setting up a guide groove 215 including an arc-shaped portion 2152 and a vertical portion 2151, the pole piece pressing knife 220 can first follow the arc-shaped portion 2152 to perform an arc-shaped flipping motion, and then follow the vertical portion 2151 to perform a vertical downward pressing motion when moving from top to bottom along the guide groove 215, thereby completing the complete action of the pole piece pressing knife 220 from flipping up to pressing down.

[0113] In this embodiment, the electrode pressing blade 220 is located at the front end of the guide slot 215, that is, the electrode pressing blade 220 extends forward relative to the guide slot 215; the arc portion 2152 is concave toward the front end. The concave arc portion 2152 can reduce the distance the electrode pressing blade 220 moves forward during the pressing process, thereby preventing interference between the electrode pressing blade 220 and the diaphragm during the lamination process.

[0114] Furthermore, the arc portion 2152 can be configured as a quarter arc of 90°. When the electrode pressing blade 220 is at the lowest end of the vertical portion 2151, it can be positioned horizontally to facilitate pressing the electrode. The guide groove 215 provided in this embodiment allows the electrode pressing blade 220 to be positioned vertically when it flips to the uppermost end of the arc portion 2152, providing as much space as possible for the diaphragm to be pulled and stacked.

[0115] Further, see Figure 7 The compound cam assembly 210 further includes: a connecting shaft 2141 and a connecting cylinder 2131; the connecting cylinder 2131 is fixed on the linear cam 213; the connecting shaft 2141 is rotatably disposed in the connecting cylinder 2131; the flipping cam 214 is rotatably connected to the linear cam 213 via the connecting shaft 2141.

[0116] Further, see Figure 8 The pole piece pressing knife 220 includes a cylinder 221 and a blade 222; the piston rod of the cylinder 221 is connected to the blade 222, which is used to adjust the pressing force of the blade 222 when the blade 222 is pressed against the pole piece.

[0117] Further, see Figure 9 The diaphragm pressing knife 130 is movably arranged on the vertical cam 123 along the vertical direction, and is connected to the vertical cam 123 through the elastic member 140, so that the diaphragm pressing knife 130 has a certain elastic force, which can provide a buffering effect for the contact between the diaphragm pressing knife 130 and the diaphragm.

[0118] Furthermore, the elastic member 140 includes: an extension rod 142 and an elastic sleeve 143; an extension rod through hole 125 that passes through the vertical direction is provided on the vertical cam 123; the extension rod 142 is movably arranged in the extension rod through hole 125; the top of the extension rod 142 extends out of the extension rod through hole 125 and is fixedly connected to the diaphragm pressing knife 130, and the bottom extends out of the extension rod through hole 125; the elastic sleeve 143 is fixedly connected to the bottom of the extension rod 142, and is used to limit the distance that the extension rod 142 slides upward.

[0119] Among them, the elastic sleeve 143 can limit the upward sliding distance of the extension rod 142 by setting the elastic sleeve 143 so that it cannot pass through the extension rod through hole 125. In this embodiment, the outer diameter of the elastic sleeve 143 is larger than the diameter of the extension rod through hole 125. The elastic member 140 can also include a washer 141, which is sleeved in the extension rod through hole 125, and the top of the extension rod 142 is connected to the diaphragm press 130 through the washer 141. The extension rod 142 is movable in the vertical direction, so that when the diaphragm press 130 contacts the diaphragm, the diaphragm press 130 can move in the vertical direction; at the same time, through the elastic sleeve 143, when the diaphragm press 130 moves upward, it will pull the elastic sleeve 143 to compress, generating a resetting elastic force, thereby preventing the diaphragm press 130 from pressing down too quickly and damaging the diaphragm.

[0120] Furthermore, in order to reduce the interference of magnetism on the pole piece 600 , a vacuum pipeline 4121 is provided inside the top conveyor belt 412 , and a plurality of suction holes 4122 in communication with the vacuum pipeline are provided on the top conveyor belt 412 .

[0121] Specifically, after the electrode piece 600 on the bottom conveyor belt 411 is conveyed to the head end of the top conveyor belt 412, the top surface of the electrode piece 600 can be sucked through the multiple suction holes 4122 on the top conveyor belt 412. The suction holes 4122 on the top conveyor belt 412 can be evenly distributed. By providing multiple suction holes 4122, the conveyor belt can have suction force without affecting the rolling conveyance of the conveyor belt.

[0122] Accordingly, in order to ensure that the electrode 600 is firmly adsorbed on the bottom conveyor belt 411, the bottom conveyor belt 411 can be set to a structure consistent with the top conveyor belt 412; that is, a vacuum pipeline 4121 is also provided inside the bottom conveyor belt 411, and suction holes 4122 identical to the vacuum pipeline are also provided on the surface.

[0123] Further, see Figure 10 and Figure 11The feeding mechanism 413 includes: a feeding motor 4131 and multiple output rods 4132; the feeding motor 4131 is arranged on the top conveyor belt 412; multiple sub-conveyor belts are laid on the top conveyor belt 412; adjacent sub-conveyor belts are spaced to form gaps; output rod through holes 4123 corresponding to the output rods 4132 are provided in the top conveyor belt 412 and the gap; one end of the output rod 4132 is transmission-connected to the feeding motor 4131, and the other end passes through the output rod through hole 4123.

[0124] Further, see Figure 12 The transfer mechanism 500 includes: a mobile platform 510 and two transfer robots 520; the mobile platform 510 can be slidably arranged between the transfer station on the vertical conveyor belt 414 and the stacking platform 300; the two transfer robots 520 can be rotatably arranged on the mobile platform 510.

[0125] Specifically, the rotatable transfer robot 520 can rotate and adjust the pole piece 600 to an angle suitable for stacking after sucking the pole piece 600. It should be noted here that a visual inspection device and a correction platform are also provided beside the stacking table 300. The correction platform is provided between the transfer station and the stacking table 300. A transfer robot 520 adjusts the angle after sucking the pole piece 600 on the transfer station and transfers it to the correction platform; the visual inspection device is provided above the correction platform to verify the size and correct the position of the pole piece 600 on the correction platform, to determine whether the size of the pole piece 600 meets the requirements, and to determine whether the pole piece 600 is placed in the preset position. If it does not meet the preset position, the position of the pole piece 600 is calibrated by the correction platform, and then the pole piece 600 is moved to the stacking table 300 by another transfer robot 520. By using the calibration platform and the visual inspection instrument, each electrode 600 entering the stacking table 300 can be first calibrated in position, so that the electrode entering the stacking table 300 does not need to be adjusted in position, which can improve the production efficiency and quality of the stacked battery.

[0126] Two transfer robots 520 can form a dual-station transfer tool. While one transfer robot 520 is moving the calibrated electrode from the calibration platform to the stacking platform 300, the other transfer robot 520 can move the electrode from the transfer station to the calibration platform, thus achieving non-stop transfer and ensuring battery production efficiency.

[0127] Further, see Figure 13 The transfer robot 520 is provided with an adsorption platform 521; a plurality of suction cup openings 522 and a plurality of through openings 523 are provided on the bottom surface of the adsorption platform 521; the suction cup openings 522 are flush with the through openings 523; a movable suction cup 524 movable in the vertical direction is provided in the through opening 523; the adsorption end of the movable suction cup 524 extends out of the bottom surface of the adsorption platform 521.

[0128] Specifically, during the material picking process, the existing adsorption-type manipulator generally needs to wait for the suction cups at each position to complete vacuum adsorption before it can move and transport the electrode, which slows down the transportation of the electrode and affects the overall stacking efficiency.

[0129] In this embodiment, the suction cup opening 522 and the movable suction cup 524 are both used to adsorb the battery electrode during the material removal process. The suction cup opening 522 is in the shape of a hole, and a sponge suction cup 5221 can be provided inside; the movable suction cup 524 can be an elastic silicone suction cup. The sponge suction cup 5221 is elastic, so the end of the sponge suction cup 5221 can extend partially outside the suction cup opening 522, so that the sponge suction cup 5221 can contact the electrode before the adsorption platform during the contact process. In order to generate a uniform adsorption force, the through opening 523 and the suction cup opening 522 can be symmetrically arranged on the adsorption platform 521, and arranged in the middle and end of the adsorption platform 521.

[0130] When the adsorption platform 521 starts to press down after aligning it with the electrode, the movable suction cup 524 first contacts the electrode 600 to complete the pre-adsorption of the electrode 600, and as the adsorption platform 521 is pressed down, the movable suction cup 524 gradually moves upward and retracts into the through-port 523 until it is flush with the sponge suction cup 5221 of the suction cup port 522. In the absence of the movable suction cup 524, after the suction cup port 522 contacts the electrode, the adsorption platform 521 needs to wait for each suction cup port 522 to complete the vacuum adsorption of the electrode before it can lift the electrode. In this solution, through the pre-adsorption of the movable suction cup 524, the adsorption platform 521 can absorb and lift the electrode without waiting for each suction cup port 522 to complete the vacuum adsorption after each suction cup port 522 contacts the electrode, thereby shortening the material removal time of the adsorption platform 521 and improving the efficiency of laminated battery production.

[0131] Furthermore, an exhaust groove 525 is provided on the bottom surface of the adsorption platform 521 .

[0132] Specifically, during the electrode pickup process, existing retrieving mechanisms not only have to wait for each suction cup to complete vacuum suction, but also have to wait for the air between the suction platform and the electrode to be exhausted, which takes a long time. In this solution, the air between the electrode 600 and the bottom surface of the suction platform 521 can be exhausted through the exhaust groove 525 during the downward pressing process, further improving the efficiency of retrieving.

[0133] The exhaust slot 525 can be set to penetrate the horizontal end surface of the adsorption platform 521, so as to discharge the air along the horizontal side of the adsorption platform 521. In addition, the exhaust slot 525 can be set to be symmetrical in both the longitudinal and transverse directions.

[0134] Furthermore, the material picking mechanism also includes: an extension plate 526 and an extension suction cup 527; the extension plate 526 is adjustably arranged at both ends of the adsorption platform 521 along the horizontal direction; the extension suction cup 527 is adjustably arranged on the extension plate 526 along the vertical direction.

[0135] The extension plate 526 can be provided with a strip groove, and the extension plate 526 can be adjusted horizontally by the cooperation of the strip groove and the bolt. The extension suction cup 527 can be adjusted vertically by the cooperation of the nut and the thread, or the extension suction cup 527 can be made elastically retractable in the vertical direction by means of a spring connection. The extension plates 526 and extension suction cups 527 at both ends of the adsorption platform 521 can be used to adsorb the tabs at both ends of the electrode, preventing the tabs from deforming during the material removal process, thus solving the problem that the existing material removal structure cannot adsorb the tabs at both ends, making the tab position easily deformed during the material removal process.

[0136] Furthermore, a suction cup elastic member (not shown in the figure) is included; the suction cup elastic member is arranged in the through opening 523, and two ends of the suction cup elastic member are respectively connected to the adsorption platform 521 and the movable suction cup 524.

[0137] Therefore, during the material taking and pressing process, the movable suction cup 524 can compress the suction cup elastic member and shrink it into the through opening 523; after the material is unloaded, the movable suction cup 524 can be stretched out of the through opening 523 by the elastic force.

[0138] Furthermore, both the suction cup port 522 and the movable suction cup 524 are provided with an air port 528; the air port 528 is connected to a vacuum pipeline (not shown in the figure) and a boost pipeline (not shown in the figure); the vacuum pipeline is used to enable the air port 528 to generate a vacuum adsorption force; the boost pipeline is used to blow air into the air port 528.

[0139] Specifically, during the material picking process, the vacuum pipeline draws air into the air port 528, so that the suction cup port 522 and the movable suction cup 524 generate a vacuum adsorption force on the electrode; during the material unloading process, the booster pipeline acts as a vacuum breaking pipeline, and by blowing air into the air port 528, the vacuum adsorption force between the suction cup port 522 and the movable suction cup 524 can be released, and the unloading action of the electrode can be accelerated, thereby further improving production efficiency.

[0140] It should be noted that in this solution, the blowing pressure generated by the boost pipeline is greater than the suction pressure of the vacuum pipeline. Compared with the method of only setting up a vacuum pipeline or closing the vacuum pipeline and then opening the boost pipeline when unloading, this solution does not need to stop the operation of the vacuum pipeline during the unloading process. It only needs to start the boost pipeline to release the vacuum of the electrode, thereby breaking the vacuum suction of the electrode more directly and quickly to press the electrode down, so that production efficiency can be further improved.

[0141] Further, the device further comprises a suction cup elastic sleeve 529, and two ends of the suction cup elastic sleeve 529 are connected with the transfer manipulator 520 and the suction table 521 respectively.

[0142] Specifically, through the suction cup elastic sleeve 529, the suction table 521 can be floated up and down, thereby having the buffering capacity to the polar plate and reducing the impact of the polar plate caused by too fast pressing. The device provides the taking mechanism, through the movable suction cup 524, the exhaust groove 525, the vacuum pipeline and the booster pipeline, the efficiency of the polar plate suction and the discharging can be increased in multiple links, and the overall production efficiency can be improved to a greater extent compared with the existing taking mechanism, thereby reducing the production time of the stacked plate battery.

[0143] The preferred embodiments of the application are described above, and are not used to limit the application, and the skilled in the art can still modify the technical solutions recorded in the foregoing examples, or replace some technical features with equivalent ones, but any modification, equivalent replacement, improvement, etc. within the spirit and principle of the application should be included in the protection scope of the application.

Claims

1. A laminating machine, characterized in that: include: Multiple lamination processing units; The lamination processing unit includes: a feeding system and a lamination system; The feeding system includes: two conveying mechanisms; The conveying mechanism includes: a bottom conveyor belt, a top conveyor belt, a material-beating mechanism and a vertical conveyor belt; The top conveyor belt is arranged in parallel with the bottom conveyor belt, and the top conveyor belt is located above the bottom conveyor belt; The head end of the top conveyor belt and the tail end of the bottom conveyor belt overlap in vertical projection; The top conveyor belt is used to absorb the pole pieces on the bottom conveyor belt; The material-beating mechanism is arranged beside the top conveyor belt and is used to take the pole piece off the top conveyor belt; The vertical conveyor belt is arranged below the material beating mechanism and is perpendicular to the top conveyor belt, and is used to transport the electrode pieces taken by the material beating mechanism to the transfer station; The stacking system includes: a transfer mechanism and a stacking table; The two conveying mechanisms are symmetrically arranged about the stacking platform, and are used to convey the positive electrode sheet and the negative electrode sheet respectively; The transfer mechanism is provided between the transfer station and the stacking table, and is used to transfer the electrode to the stacking table; The plurality of lamination processing units are sequentially and adjacently distributed; The tail end of the top conveyor belt in one lamination processing unit overlaps with the head end of the bottom conveyor belt in the next adjacent lamination processing unit in vertical projection.

2. The laminating machine according to claim 1, characterized in that The lamination system further comprises: a pole piece pressing mechanism; The pole piece pressing mechanism comprises: a composite cam assembly and a pole piece pressing tool; The composite cam assembly includes: a rotating motor, a guide plate, a linear cam, a flip cam and a connecting piece; The rotating motor is arranged on the stacking table; The guide plate is arranged on the stacking table, and a guide groove is arranged on the guide plate; The linear cam is slidably arranged on the stacking table, and a strip groove is arranged on the linear cam; The first end of the flip cam is slidably disposed in the guide groove via a rotating wheel, and the second end is rotatably disposed on the linear cam; One end of the connecting member is slidably arranged in the strip groove through a rotating wheel, and the other end is transmission-connected to the output end of the rotating motor; The pole piece pressing knife is arranged on the turning cam at a position close to the first end; The rotary motor is used to drive the connecting member to rotate, thereby driving the linear cam to slide so that the pressure cam slides along the guide groove.

3. The laminating machine according to claim 2, characterized in that: The lamination system further comprises: a diaphragm pressing mechanism; The diaphragm pressing knife mechanism includes: a horizontal motion component, a vertical motion component and a diaphragm pressing knife; The diaphragm pressing knife is arranged on the vertical motion component; The vertical motion component is arranged on the horizontal motion component and is used to drive the diaphragm pressing knife to move in the vertical direction; The horizontal motion component is arranged on the stacking table and is used to drive the vertical motion component to move in the horizontal direction; The horizontal motion component and the vertical motion component are arranged to move synchronously.

4. The laminating machine according to claim 3, characterized in that: The horizontal motion assembly includes: a horizontal motor, a horizontal transmission member and a horizontal cam; The vertical motion assembly includes: a vertical motor, a vertical transmission member and a vertical cam; The horizontal motor and the vertical motor are both arranged on the stacking table; The horizontal cam is slidably arranged on the stacking table along the horizontal direction, and a vertical sliding groove is provided on the horizontal cam; One end of the horizontal transmission member is slidably disposed in the vertical slide groove via a rotating wheel, and the other end is transmission-connected to the horizontal motor; The vertical cam is slidably arranged on the horizontal cam along the vertical direction, and a horizontal sliding groove is provided on the vertical cam; One end of the vertical transmission member is slidably disposed in the horizontal slide groove via a rotating wheel, and the other end is transmission-connected to the vertical motor; The diaphragm pressing knife is arranged on the vertical cam; The horizontal motor is used to drive the horizontal transmission member to rotate so that the horizontal cam slides horizontally; The vertical motor is used to drive the vertical transmission member to rotate so that the vertical cam slides vertically.

5. The laminating machine according to claim 2, characterized in that: The guide groove includes an arc portion and a vertical portion that are connected to each other; The arc portion is located above the vertical portion; The pole piece pressing knife is located at the front end of the guide groove; The arc-shaped portion is concave toward the front end.

6. The laminating machine according to claim 1, characterized in that: The punching mechanism includes: a punching motor and a plurality of output rods; The punching motor is arranged on the top conveyor belt; The top conveyor belt is paved with a plurality of sub-conveyor belts; Adjacent sub-conveyor belts are spaced apart to form gaps; The top conveyor belt is provided with a plurality of output rod through holes corresponding to the output rods in a one-to-one manner at the gap positions; One end of the output rod is transmission-connected to the punching motor, and the other end passes through the output rod through hole.

7. The laminating machine according to claim 1, characterized in that: The transfer mechanism includes: a mobile platform and two transfer manipulators; The movable platform is slidably arranged between the transfer station and the stacking platform; The two transfer robots can be rotatably arranged on the mobile platform.

8. The laminating machine according to claim 7, characterized in that: The transfer robot is provided with an adsorption platform; The bottom surface of the adsorption platform is provided with a plurality of suction cup openings and a plurality of through openings; The suction cup opening is flush with the through opening; A movable suction cup movable in the vertical direction is provided in the through opening; The adsorption end of the movable suction cup extends out of the bottom surface of the adsorption platform.

9. The laminating machine according to claim 8, characterized in that: The bottom surface of the adsorption platform is provided with an exhaust groove penetrating in the horizontal direction.

10. The laminating machine according to claim 8, characterized in that The suction cup opening and the movable suction cup are both provided with air ports; The gas port is connected with a vacuum pipeline and a boost pipeline; The vacuum pipeline is used to generate a vacuum adsorption force at the gas port; The pressurizing pipeline is used for blowing air into the air port.

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