Pole piece splicing device

Abstract

The utility model discloses a pole piece splicing device, which is used for splicing a first pole piece and a second pole piece and comprises a first splicing unit, a second splicing unit and a third splicing unit, the first splicing unit comprises a first driving part, a first adsorption part and a shearing part, and the first driving part is used for driving the first adsorption part and the shearing part to reciprocate along a first direction; the first adsorption part is used for adsorbing a first pole piece or a second pole piece, and the shearing part is used for shearing the first pole piece and the second pole piece; the second splicing unit comprises a second driving part, a second adsorption part and a pasting part, the second driving part is used for driving the second adsorption part and the pasting part to reciprocate in the first direction, the second adsorption part is used for adsorbing the second pole piece, and the pasting part is used for pasting and splicing the first pole piece and the second pole piece. According to the electrode roll splicing device, the electrode roll to be supplied and the electrode roll to be replaced are cut off through the shearing part, and then the cut-off positions of the two electrode rolls are spliced together through the pasting part, so that replacement and continuous conveying of the electrode rolls are achieved, and the splicing accuracy is high.

Description

Technical Field

[0001] The utility model relates to the technical field of battery pole piece processing, in particular to a pole piece splicing device. Background Art

[0002] In the existing electrode sheet processing process, when the supply of an electrode wound into a roll shape ends, it needs to be replaced with another electrode. When replacing, the two electrodes need to be spliced ​​to form a complete and continuous electrode sheet. However, currently the splicing of the two electrodes is mostly done manually, and the replacement process is complicated, slow, and the accuracy and efficiency of splicing are low, which leads to low production efficiency. Therefore, it is urgent to improve the splicing efficiency while ensuring its quality. Utility Model Content

[0003] The utility model aims to provide a pole piece splicing device to solve the problems in the prior art and improve the electrode splicing efficiency under the premise of ensuring product quality.

[0004] The utility model provides a pole piece splicing device, which is used to splice a first pole piece and a second pole piece, comprising:

[0005] A first splicing unit, the first splicing unit comprising a first driving part, a first adsorption part and a shearing part, the first driving part is used to drive the first adsorption part and the shearing part to reciprocate along a first direction, the first adsorption part is used to adsorb the first pole piece or the second pole piece, and the shearing part is used to shear the first pole piece and the second pole piece;

[0006] The second splicing unit includes a second driving part, a second adsorption part and a pasting part, the second driving part is used to drive the second adsorption part and the pasting part to move back and forth along the first direction, the second adsorption part is used to adsorb the second pole piece, and the pasting part is used to paste and splice the first pole piece and the second pole piece.

[0007] A pole piece splicing device as described above, wherein preferably, the first driving part includes a first cylinder and a first bracket, the first bracket is connected to the first cylinder, the first adsorption part and the shearing part are both arranged on the first bracket, and the first cylinder can drive the first bracket to reciprocate along the first direction.

[0008] A pole piece splicing device as described above, wherein preferably, the first adsorption portion includes a second cylinder and a third cylinder, the second cylinder and the third cylinder are both provided with a first negative pressure adsorption component, the second cylinder and the third cylinder can drive the negative pressure adsorption component to reciprocate along the first direction, and the first negative pressure adsorption component can adsorb the first pole piece and the second pole piece.

[0009] A pole piece splicing device as described above, wherein preferably, the shearing portion includes a fourth cylinder, a first cylinder module and a cutter, the cutter is connected to the fourth cylinder, the first cylinder module can drive the fourth cylinder to reciprocate along the second direction, and the fourth cylinder can drive the cutter to reciprocate along the first direction.

[0010] A pole piece splicing device as described above, wherein preferably, the second driving part includes a fifth cylinder and a second bracket, the second bracket is connected to the fifth cylinder, the second adsorption part and the adhesive part are both arranged on the second bracket, and the fifth cylinder can drive the second bracket to reciprocate along the first direction.

[0011] In the pole piece splicing device as described above, preferably, the second adsorption part includes a sixth cylinder, a seventh cylinder, an eighth cylinder and a ninth cylinder, wherein:

[0012] The sixth cylinder and the seventh cylinder are both provided with a second negative pressure adsorption member, and the sixth cylinder and the seventh cylinder can drive the second negative pressure adsorption member to reciprocate along the first direction, and the second negative pressure adsorption member can adsorb the second pole piece;

[0013] The sixth cylinder is connected to the eighth cylinder, and the eighth cylinder can drive the sixth cylinder to reciprocate along the third direction. The seventh cylinder is connected to the ninth cylinder, and the ninth cylinder can drive the seventh cylinder to reciprocate along the third direction.

[0014] A pole piece splicing device as described above, wherein preferably, the pasting portion includes a tenth cylinder and an adhesive tape, the adhesive tape is connected to the tenth cylinder, the tenth cylinder can drive the adhesive tape to reciprocate along the first direction, and the adhesive tape is used to paste and splice the first pole piece and the second pole piece.

[0015] Compared with the prior art, the utility model cuts off the electrode roll that is about to end its supply and the electrode roll to be replaced through the shearing part of the first splicing unit, and then glues and splices the cut ends of the two electrode rolls together through the gluing part of the second splicing unit, so as to realize the replacement and continuous transportation of the electrode rolls, avoids the problems that may be caused by manual replacement, has a fast roll changing speed and high splicing accuracy, and thus improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a stereogram of one viewing angle of the utility model;

[0017] Figure 2 It is a stereogram of another viewing angle of the utility model;

[0018] Figure 3 It is a three-dimensional diagram of the first splicing unit of the utility model;

[0019] Figure 4 It is a three-dimensional diagram of the second splicing unit of the utility model from one viewing angle;

[0020] Figure 5 It is a three-dimensional diagram of the second splicing unit of the utility model from another viewing angle;

[0021] Figure 6 It is a schematic diagram of working state 1 of the utility model;

[0022] Figure 7 It is a schematic diagram of the working state 2 of the utility model;

[0023] Figure 8 It is a schematic diagram of working state three of the utility model;

[0024] Fig. 9 It is a schematic diagram of working state 4 of the utility model;

[0025] Fig.10 It is a schematic diagram of working state 5 of the utility model;

[0026] Fig.11 It is a schematic diagram of working state 6 of the utility model;

[0027] Fig.12 It is a schematic diagram of working state 7 of the utility model;

[0028] Fig.13 It is a schematic diagram of working state eight of the utility model;

[0029] Fig.14 It is a schematic diagram of working state nine of the utility model.

[0030] Description of reference numerals:

[0031] 100-first splicing unit, 110-first driving part, 111-first cylinder, 112-first bracket, 120-first adsorption part, 121-second cylinder, 122-third cylinder, 123-first negative pressure adsorption member, 130-cutting part, 131-fourth cylinder, 132-first cylinder module, 133-cutter;

[0032] 200-second splicing unit, 210-second driving part, 211-fifth cylinder, 212-second bracket, 220-second adsorption part, 221-sixth cylinder, 222-seventh cylinder, 223-eighth cylinder, 224-ninth cylinder, 225-second negative pressure adsorption member, 230-adhesion part, 231-tenth cylinder, 232-adhesion tape;

[0033] 300-first pole piece;

[0034] 400- second pole piece;

[0035] D1-first direction, D2-second direction, D3-third direction. DETAILED DESCRIPTION

[0036] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0037] Reference Figure 1 as well as Figure 2 As shown, the utility model provides a pole piece splicing device for splicing a first pole piece 300 and a second pole piece 400, wherein the first pole piece 300 is a pole piece that is about to be transported to the end, and the second pole piece 400 is a pole piece connected to the tail of the first pole piece 300 so that the pole pieces can be continuously transported. The pole piece splicing device of the present application includes a first splicing unit 100 and a second splicing unit 200, and the first pole piece 300 and the second pole piece 400 are located between the first splicing unit 100 and the second splicing unit 200 during the transmission process, wherein:

[0038] The first splicing unit 100 includes a first driving part 110, a first adsorption part 120 and a shearing part 130. The first driving part 110 is used to drive the first adsorption part 120 and the shearing part 130 to move back and forth along the first direction D1. The first adsorption part 120 is used to adsorb the first pole piece 300 or the second pole piece 400. The shearing part 130 is used to shear the first pole piece 300 and the second pole piece 400. In the embodiment provided in the present application, the first direction D1 is a horizontal direction. When splicing is required, the first driving part 110 drives the first adsorption part 120 and the shearing part 130 to approach the first pole piece 300 along the horizontal direction. The first adsorption part 120 can adsorb the first pole piece 300 to fix the first pole piece 300, and the first pole piece 300 is cut off by the shearing part 130 before being spliced ​​with the second pole piece 400.

[0039] The second splicing unit 200 includes a second driving part 210, a second adsorption part 220 and a pasting part 230. The second driving part 210 is used to drive the second adsorption part 220 and the pasting part 230 to move back and forth along the first direction D1. The second adsorption part 220 is used to adsorb the second pole piece 400. The pasting part 230 is used to paste and splice the first pole piece 300 and the second pole piece 400. In the embodiment provided in the present application, while the first driving part 110 drives the first adsorption part 120 and the shearing part 130 to move, the second driving part 210 drives the second adsorption part 220 and the pasting part 230 to approach the second pole piece 400 in the horizontal direction. After the second adsorption part 220 adsorbs the second pole piece 400, the first pole piece 300 and the second pole piece 400 are tightly attached together. The shearing part 130 shears the first pole piece 300 and also cuts the second pole piece 400. After the second pole piece 400 is cut, it is moved to the cut position of the first pole piece 300 under the action of the second adsorption part 220 to connect with the first pole piece 300. Finally, the first pole piece 300 and the second pole piece 400 are pasted by the pasting part 230 to realize the splicing of the first pole piece 300 and the second pole piece 400.

[0040] Reference Figure 3 As shown, the first driving part 110 includes a first cylinder 111 and a first bracket 112, the first bracket 112 is connected to the first cylinder 111, the first adsorption part 120 and the shearing part 130 are both arranged on the first bracket 112, and the first cylinder 111 can drive the first bracket 112 to move back and forth along the first direction D1. In the embodiment provided in the present application, the first bracket 112 is fixed to the end of the piston rod of the first cylinder 111. When splicing is required, the piston rod of the first cylinder 111 extends forward to move the first bracket 112 toward the direction close to the first pole piece 300, and the first adsorption part 120 and the shearing part 130 are close to the first pole piece 300. After the splicing is completed, the piston rod of the first cylinder 111 retracts, driving the first bracket 112 away from the first pole piece 300, so that the pole piece can continue to be transmitted forward.

[0041] Further, the first adsorption part 120 includes a second cylinder 121 and a third cylinder 122, and the second cylinder 121 and the third cylinder 122 are both provided with a first negative pressure adsorption member 123, and the second cylinder 121 and the third cylinder 122 can drive the first negative pressure adsorption member 123 to move back and forth along the first direction D1, and the first negative pressure adsorption member 123 can adsorb the first pole piece 300 and the second pole piece 400. In the embodiment provided in the present application, the second cylinder 121 and the third cylinder 122 are arranged up and down along the gravity direction, and the ends of the piston rods of the two cylinders are both provided with a first negative pressure adsorption member 123. When adsorbing the first pole piece 300, the piston rod of the second cylinder 121 and the piston rod of the third cylinder 122 extend forward at the same time, and the two first negative pressure adsorption members 123 are moved in a direction close to the first pole piece 300 until the two first negative pressure adsorption members 123 adsorb and fix the first pole piece 300.

[0042] Furthermore, the shearing part 130 includes a fourth cylinder 131, a first cylinder module 132 and a cutter 133. The cutter 133 is connected to the fourth cylinder 131. The first cylinder module 132 can drive the fourth cylinder 131 to move back and forth along the second direction D2, and the fourth cylinder 131 can drive the cutter 133 to move back and forth along the first direction D1. In the embodiment provided in the present application, the second direction D2 is a horizontal direction perpendicular to the first direction D1. The fourth cylinder 131 is located between the second cylinder 121 and the third cylinder 122. The cutter 133 is fixed to the end of the piston rod of the fourth cylinder 131. When the two first negative pressure adsorption members 123 adsorb the first pole piece 300, there is a certain gap between the two first negative pressure adsorption members 123. The piston rod of the fourth cylinder 131 extends forward to move the cutter 133 into the gap, and then drives the cutter 133 to move along the second direction D2 through the first cylinder module 132 to cut the first pole piece 300.

[0043] Reference Figure 4 as well as Figure 5 As shown, the second driving part 210 includes a fifth cylinder 211 and a second bracket 212, the second bracket 212 is connected to the fifth cylinder 211, the second adsorption part 220 and the pasting part 230 are both arranged on the second bracket 212, and the fifth cylinder 211 can drive the second bracket 212 to move back and forth along the first direction D1. In the embodiment provided in the present application, the second bracket 212 is fixed to the end of the piston rod of the fifth cylinder 211. When the first bracket 112 approaches the first pole piece 300, the piston rod of the fifth cylinder 211 extends forward, driving the second bracket 212 to approach the second pole piece 400, and the second adsorption part 220 and the pasting part 230 approach the second pole piece 400 as the second bracket 212 moves.

[0044] Further, the second adsorption unit 220 includes a sixth cylinder 221, a seventh cylinder 222, an eighth cylinder 223 and a ninth cylinder 224, wherein:

[0045] The sixth cylinder 221 and the seventh cylinder 222 are both provided with a second negative pressure adsorption component 225. The sixth cylinder 221 and the seventh cylinder 222 can drive the second negative pressure adsorption component 225 to reciprocate along the first direction D1, and the second negative pressure adsorption component 225 can adsorb the second pole piece 400; the sixth cylinder 221 is connected to the eighth cylinder 223, and the eighth cylinder 223 can drive the sixth cylinder 221 to reciprocate along the third direction D3, and the seventh cylinder 222 is connected to the ninth cylinder 224, and the ninth cylinder 224 can drive the seventh cylinder 222 to reciprocate along the third direction D3.

[0046] In the embodiment provided in the present application, the sixth cylinder 221 and the seventh cylinder 222 are arranged up and down along the direction of gravity, and the piston rod ends of the sixth cylinder 221 and the piston rod ends of the seventh cylinder 222 are provided with a second negative pressure adsorption component 225. The piston rod of the sixth cylinder 221 and the piston rod of the seventh cylinder 222 extend forward at the same time, driving the two second negative pressure adsorption components 225 to approach the second pole piece 400 until the second pole piece 400 is adsorbed and fixed. When the two first negative pressure adsorption components 123 adsorb the first pole piece 300 and the two second negative pressure adsorption components 225 adsorb the second pole piece 400, the first pole piece 300 and the second pole piece 400 are tightly attached together, so that the shearing portion 130 can cut off the second pole piece 400 while cutting off the first pole piece 300, so as to facilitate subsequent splicing.

[0047] The eighth cylinder 223 and the ninth cylinder 224 can respectively drive the sixth cylinder 221 and the seventh cylinder 222 to move back and forth along the third direction D3, and the third direction D3 is the direction of gravity. The pasting portion 230 is arranged between the sixth cylinder 221 and the seventh cylinder 222. When the pasting portion 230 is spliced, the sixth cylinder 221 and the seventh cylinder 222 need to be moved away so that the pasting portion 230 has enough space for pasting and splicing. Therefore, the eighth cylinder 223 drives the sixth cylinder 221 to move upward, and the ninth cylinder 224 drives the seventh cylinder 222 to move downward. The sixth cylinder 221 and the seventh cylinder 222 are away from the pasting portion 230 at the same time, so that the pasting portion 230 has enough pasting space.

[0048] Furthermore, the pasting part 230 includes a tenth cylinder 231 and an adhesive tape 232, the adhesive tape 232 is connected to the tenth cylinder 231, the tenth cylinder 231 can drive the adhesive tape 232 to move back and forth along the first direction D1, and the adhesive tape 232 is used to paste and splice the first pole piece 300 and the second pole piece 400. In the embodiment provided in the present application, the adhesive tape 232 is arranged at the end of the piston rod of the tenth cylinder 231. After the first pole piece 300 and the second pole piece 400 are cut off, the second pole piece 400 is moved to a position for splicing with the first pole piece 300, and the piston rod of the tenth cylinder 231 extends forward to move the adhesive tape 232 to the splicing position close to the first pole piece 300 and the second pole piece 400, until the adhesive tape 232 pastes the first pole piece 300 and the second pole piece 400 together to complete the splicing.

[0049] Based on the above embodiments, the working process of the utility model is as follows:

[0050] Reference Figure 6 As shown, in the initial state, all cylinders of the first splicing unit 100 and the second splicing unit 200 are in the closed state, the tail end of the first pole piece 300 and the head end of the second pole piece 400 are between the first splicing unit 100 and the second splicing unit 200, the first pole piece 300 is close to the first splicing unit 100, and the second pole piece 400 is close to the second splicing unit 200.

[0051] Before starting splicing, refer to Figure 7 As shown, the first cylinder 111 and the fifth cylinder 211 are started simultaneously, respectively driving the first bracket 112 and the second bracket 212 to move toward each other, so that the first bracket 112 is close to the first pole piece 300 and the second bracket 212 is close to the second pole piece 400.

[0052] Reference Figure 8 As shown, the second cylinder 121 and the third cylinder 122 are started at the same time, driving the two first negative pressure adsorption components 123 to approach the first pole piece 300 and adsorb the first pole piece 300. At the same time, the eighth cylinder 223 drives the sixth cylinder 221 to move downward, and the ninth cylinder 224 drives the seventh cylinder 222 to move upward. The sixth cylinder 221 and the seventh cylinder 222 drive the two second negative pressure adsorption components 225 to approach the second pole piece 400 and adsorb the second pole piece 400. When the first pole piece 300 and the second pole piece 400 are both adsorbed and fixed, the first pole piece 300 and the second pole piece 400 are in a tightly attached state.

[0053] After the first pole piece 300 and the second pole piece 400 are tightly fixed, refer to Fig. 9As shown, the fourth cylinder 131 is started, driving the cutter 133 to move toward the first pole piece 300 until it moves into the gap between the two first negative pressure adsorption components 123, and then the first cylinder module 132 is started to drive the fourth cylinder 131 to move in the gap between the two first negative pressure adsorption components 123 to cut off the first pole piece 300 and the second pole piece 400 at the same time.

[0054] After the first pole piece 300 and the second pole piece 400 are cut off, refer to Fig.10 As shown, the third cylinder 122, the fourth cylinder 131, the first cylinder module 132, the sixth cylinder 221, the eighth cylinder 223, the first negative pressure adsorption component 123 connected to the third cylinder 122, and the second negative pressure adsorption component 225 connected to the sixth cylinder 221 are all closed, and the other cylinders and the first negative pressure adsorption component 123 connected to the second cylinder 121 and the second negative pressure adsorption component 225 connected to the seventh cylinder 222 remain in the open state, and the seventh cylinder 222 pushes the second pole piece 400 in the direction close to the third cylinder 122 until it is aligned with the cut-off point of the first pole piece 300.

[0055] The second pole piece 400 is pushed to align with the cut portion of the first pole piece 300 and then referred to Fig.11 As shown, the seventh cylinder 222 and the second negative pressure adsorption member 225 connected to the seventh cylinder 222 are closed, and at the same time, the third cylinder 122 and the first negative pressure adsorption member 123 connected to the third cylinder 122 are started to adsorb and fix the second pole piece 400.

[0056] Reference Fig.12 As shown, after the tail of the first pole piece 300 and the head of the second pole piece 400 are adsorbed and fixed, the tenth cylinder 231 is started, driving the adhesive tape 232 to move toward the direction close to the first splicing unit 100 until it moves to the splicing point of the first pole piece 300 and the second pole piece 400, and the first pole piece 300 and the second pole piece 400 are pasted and spliced.

[0057] After the splicing is completed, refer to Fig.13 As shown, the first cylinder 111 and the fifth cylinder 211 remain open, all other cylinders, the first negative pressure adsorption member 123 and the second negative pressure adsorption member 225 are closed, the first electrode sheet 300 and the second electrode sheet 400 are spliced ​​into a continuous electrode sheet, and the first cylinder 111 and the fifth cylinder 211 simultaneously drive the first bracket 112 and the second bracket 212 away from the spliced ​​electrode sheet. Finally, refer to Fig.14 As shown, the first cylinder 111 and the fifth cylinder 211 are closed, and the spliced ​​electrode sheets continue to be transported forward, thereby realizing continuous transmission of the electrode sheets.

[0058] The above describes in detail the structure, features and effects of the utility model based on the embodiments shown in the drawings. The above is only a preferred embodiment of the utility model, but the utility model is not limited to the scope of implementation shown in the drawings. Any changes made in accordance with the concept of the utility model, or modifications to equivalent embodiments with equivalent changes, which still do not exceed the spirit covered by the description and the drawings, should be within the protection scope of the utility model.

Claims

1. A pole piece splicing device, used for splicing a first pole piece and a second pole piece, characterized in that: include: A first splicing unit, the first splicing unit comprising a first driving part, a first adsorption part and a shearing part, the first driving part is used to drive the first adsorption part and the shearing part to reciprocate along a first direction, the first adsorption part is used to adsorb the first pole piece or the second pole piece, and the shearing part is used to shear the first pole piece and the second pole piece; The second splicing unit includes a second driving part, a second adsorption part and a pasting part, the second driving part is used to drive the second adsorption part and the pasting part to move back and forth along the first direction, the second adsorption part is used to adsorb the second pole piece, and the pasting part is used to paste and splice the first pole piece and the second pole piece.

2. The pole piece splicing device according to claim 1, characterized in that: The first driving part includes a first cylinder and a first bracket, the first bracket is connected to the first cylinder, the first adsorption part and the shearing part are both arranged on the first bracket, and the first cylinder can drive the first bracket to reciprocate along the first direction.

3. The pole piece splicing device according to claim 2, characterized in that: The first adsorption part includes a second cylinder and a third cylinder, and the second cylinder and the third cylinder are both provided with a first negative pressure adsorption component. The second cylinder and the third cylinder can drive the first negative pressure adsorption component to reciprocate along the first direction, and the first negative pressure adsorption component can adsorb the first pole piece and the second pole piece.

4. The pole piece splicing device according to claim 2, characterized in that: The shearing part includes a fourth cylinder, a first cylinder module and a cutter, the cutter is connected to the fourth cylinder, the first cylinder module can drive the fourth cylinder to reciprocate along the second direction, and the fourth cylinder can drive the cutter to reciprocate along the first direction.

5. The pole piece splicing device according to claim 1, characterized in that: The second driving part includes a fifth cylinder and a second bracket, the second bracket is connected to the fifth cylinder, the second adsorption part and the adhesive part are both arranged on the second bracket, and the fifth cylinder can drive the second bracket to reciprocate along the first direction.

6. The pole piece splicing device according to claim 5, characterized in that: The second adsorption part includes a sixth cylinder, a seventh cylinder, an eighth cylinder and a ninth cylinder, wherein: The sixth cylinder and the seventh cylinder are both provided with a second negative pressure adsorption member, and the sixth cylinder and the seventh cylinder can drive the second negative pressure adsorption member to reciprocate along the first direction, and the second negative pressure adsorption member can adsorb the second pole piece; The sixth cylinder is connected to the eighth cylinder, and the eighth cylinder can drive the sixth cylinder to reciprocate along the third direction. The seventh cylinder is connected to the ninth cylinder, and the ninth cylinder can drive the seventh cylinder to reciprocate along the third direction.

7. The pole piece splicing device according to claim 6, characterized in that: The pasting part includes a tenth cylinder and an adhesive tape, wherein the adhesive tape is connected to the tenth cylinder, and the tenth cylinder can drive the adhesive tape to reciprocate along the first direction, and the adhesive tape is used to paste and splice the first pole piece and the second pole piece.

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