Rolling, flattening and wrinkle removing device for pole piece

Abstract

The utility model relates to the technical field of battery pole piece manufacturing, in particular to a rolling, flattening and wrinkle removing device for a pole piece, which is characterized in that a second swinging part is arranged on a support plate, a tension roller for tensioning the pole piece is rotationally arranged on the second swinging part, and the axial direction of the tension roller is consistent with that of a metal roller; a pair of guide plates used for limiting the pole pieces is arranged at the initial end of the pole piece conveying track, and a control part used for controlling the guide plates to move close to each other or away from each other is arranged on the supporting plate. Under the action of the guide plate, the pole pieces move towards one direction all the time in the conveying process, deviation in the conveying process is prevented, when rubberizing connection needs to be conducted, the pole pieces at the front end and the rear end can be aligned, and the rubberizing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery pole piece manufacturing, in particular to a rolling, flattening and wrinkle-removing device for pole pieces. Background Art

[0002] In the production of lithium-ion power batteries, the battery pole sheet rolling process is a key link in the battery manufacturing process. At present, the pole sheets rolled out by ordinary battery pole sheet rolling devices have a wide blank space, and the tension is uneven during the winding and unwinding process, and the pole sheets are shaken by gravity, causing the winding and wrinkling phenomenon, which causes the overall wrinkling phenomenon. Among them, the existing wrinkle removal device is as follows:

[0003] The Chinese patent document with the announcement number CN207770517U discloses a rolling device capable of removing wrinkles, which specifically discloses: comprising a rolling mechanism and a wrinkle-removing mechanism, wherein the wrinkle-removing mechanism is fixedly arranged on one side of the feeding port of the rolling mechanism; the pole piece is sequentially passed through the wrinkle-removing mechanism and the rolling mechanism to complete its wrinkle-removing and rolling. By arranging the wrinkle-removing mechanism on one side of the feeding port of the rolling mechanism, the ductility and stability of the battery pole piece when it is rolled up after rolling are effectively improved, and at the same time, the wrinkle phenomenon caused by uneven tension and gravity shaking of the pole piece during the process of retracting and releasing the pole piece is avoided.

[0004] However, in the process of continuous conveying of the electrode sheet by the existing roller pressing device, the conveying track of the electrode sheet will deviate, thereby affecting the subsequent wrinkle removal effect. Therefore, a roller pressing, flattening and wrinkle removal device for the electrode sheet is provided to solve the above technical problems. Utility Model Content

[0005] The utility model aims to provide a rolling flattening and wrinkle-removing device for pole pieces in view of the deficiencies in the prior art, so as to solve the technical problem that the conveying track of the pole pieces may deviate during the continuous conveying of the pole pieces by the existing rolling device.

[0006] To achieve the above purpose, the technical solution of the utility model is as follows:

[0007] A rolling flattening and wrinkle-removing device for a pole piece, comprising a base and a support plate mounted on the base, a first swinging component mounted on the support plate, a metal roller wheel rotatably arranged with an axial direction horizontally disposed, a rubber roller wheel rotatably arranged with an axial direction consistent with the metal roller wheel on the first swinging component, the first swinging component controls the rubber roller wheel to move in a direction close to the metal roller wheel to press the pole piece, and a first servo motor for driving the metal roller wheel to rotate to roll and convey the pole piece is mounted on the support plate;

[0008] A second swinging component is installed on the support plate, and a tension roller for tensioning the pole piece is rotatably provided on the second swinging component, and the axial direction of the tension roller is consistent with the axial direction of the metal roller; a pair of guide plates for limiting the pole piece are provided at the initial end of the pole piece conveying track, and a control component for controlling the guide plates to move closer to or away from each other is installed on the support plate.

[0009] Furthermore, a first support roller and a second support roller are rotatably provided on the support plate, and the first support roller and the second support roller are both placed at the initial end of the pole piece conveying track. A first guide roller and a second guide roller are also rotatably provided, and the first guide roller and the second guide roller are both placed at the end end of the pole piece conveying track.

[0010] Furthermore, a first fixing member is provided on the support plate, and a second pressure sensor is mounted on the first fixing member. A first connecting member is rotatably provided at the end of the first guide roller, and the first connecting member is mounted on the bottom of the second pressure sensor.

[0011] Furthermore, the first swinging component includes a first rotating shaft rotatably set on the support plate and with its axial direction parallel to the axial direction of the metal roller, a first swing arm is fixedly set on the first rotating shaft, and the rubber roller is rotatably set on the executing end of the first swing arm; a roller is also set on the executing end of the first swing arm, a first cylinder with its output shaft arranged upward is installed on the base, and a first pressure sensor is installed on the end of the telescopic rod of the first cylinder, and a push block for pushing the roller is provided on the first pressure sensor.

[0012] Furthermore, the second swing component includes a second rotating shaft rotatably set on the support plate and with an axial direction parallel to the axial direction of the metal roller, a second swing arm is fixedly provided on the second rotating shaft, and the tension roller is rotatably provided on the execution end of the second swing arm; a second cylinder with a telescopic rod arranged upward is mounted on the support plate, the tail end of the second cylinder is rotatably set on the support plate, and a third connecting piece is fixedly provided at one end of the second rotating shaft, and an end portion of the third connecting piece is rotatably connected to the end portion of the telescopic rod of the second cylinder.

[0013] Furthermore, a glue sticking platform disposed between the first support roller and the second support roller is installed on the support plate, and a pair of pressing components for pressing the pole piece are also installed, and the pressing components are respectively disposed above the first support roller and the second support roller.

[0014] Furthermore, the clamping component includes a second fixing member and a third cylinder installed on the second fixing member. The telescopic rod of the third cylinder is arranged downward, and a pressing rod for pressing the pole piece is fixed on the end of the telescopic rod; a rubber pad is provided on the side of the pressing rod that contacts the pole piece.

[0015] Furthermore, the control component includes a guide rod fixedly set on the support plate and with a length direction parallel to the axial direction of the metal roller. The guide plates on both sides are slidably set on the guide rod. A forward and reverse screw rod with an axial direction parallel to the length direction of the guide rod is rotatably provided on the support plate, and different guide plates are threadedly connected to different threaded parts on the forward and reverse screw rods respectively. A second servo motor for driving the forward and reverse screw rods to rotate is also installed on the support plate.

[0016] The beneficial effects of the utility model are as follows: after the electrode sheet material roll is unwound, the initial end of the electrode sheet passes through between the metal roller and the rubber roller, then passes through the top of the tension roller, and is finally rolled up; before rolling up, the metal roller is first driven to rotate to roll and convey the electrode sheet to be dewrinkled, and at the same time, the second swinging component is operated to drive the tension roller to swing, so as to tension the electrode sheet; after rolling and conveying a certain amount of electrode sheet, the metal roller stops rotating, and then the winding mechanism (not shown in the figure) and the second swinging component are operated, and the winding mechanism rolls up the electrode sheet while the second swinging component drives the tension roller to reset; the metal roller is driven to rotate again to roll and convey the electrode sheet to be dewrinkled, and at the same time, the second swinging component is operated again to drive the tension roller to tension the electrode sheet, and the cycle is repeated to dewrinkle the electrode sheet, and under the action of the metal roller and the rubber roller rolling and conveying the electrode sheet, the efficiency of removing wrinkles on the electrode sheet is further improved.

[0017] In addition, under the action of the guide plate, the pole pieces during the conveying process always move in one direction to prevent displacement during transportation. Moreover, when gluing and splicing are required, the pole pieces at the front and rear ends can be aligned, thereby improving the gluing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the utility model from another viewing angle.

[0020] Figure 3 It is a partial structural schematic diagram of the utility model.

[0021] Figure 4 It is a schematic diagram of the activity track of the pole piece of the utility model.

[0022] Figure 5 It is a structural schematic diagram of the control component of the utility model.

[0023] Reference numerals include:

[0024] 1. Base; 2. Support plate; 201. Shell; 3. First support roller; 4. Second support roller; 5. Metal roller; 51. First servo motor; 6. Rubber roller; 61. First rotating shaft; 62. First swing arm; 64. First cylinder; 65. First pressure sensor; 66. Push block; 67. Roller; 7. First guide roller; 71. First fixing member; 72. First connecting member; 73. Second pressure sensor; 8. Second guide roller; 81. Second connecting member; 9. Tension roller; 91. Second rotating shaft; 92. Second swing arm; 93. Second cylinder; 94. Third connecting member; 10. Glue sticking platform; 11. Second fixing member; 12. Third cylinder; 13. Press rod; 14. Rubber pad; 15. Guide plate; 151. Guide rod; 152. Forward and reverse screw rod; 153. Second servo motor. DETAILED DESCRIPTION

[0025] The following is a detailed description of a roller-pressing, flattening and wrinkle-removing device for a pole piece of the utility model in conjunction with the accompanying drawings.

[0026] like Figure 1-2 As shown, an embodiment of a rolling, flattening and wrinkle-removing device for a pole piece of the utility model comprises a base 1 and a pair of support plates 2 mounted on the base 1, a first swinging component is mounted on the support plate 2, and a metal roller 5 axially arranged horizontally is rotatably mounted thereon, a rubber roller 6 axially aligned with the metal roller 5 is rotatably mounted on the first swinging component, the first swinging component controls the rubber roller 6 to move in a direction close to the metal roller 5 to press the pole piece passing between the metal roller 5 and the rubber roller 6, a first servo motor 51 whose output shaft is connected to the end of the metal roller 5 is mounted on the support plate 2; the pole piece is first passed between the metal roller 5 and the rubber roller 6, and then the first swinging component is operated to control the rubber roller 6 to press the pole piece, and then the first servo motor 51 is operated to drive the metal roller 5 to rotate, so as to realize rolling and conveying of the pole piece, and convey it to the subsequent tension wrinkle removal treatment, and during the rolling and conveying process of the pole piece, the pole piece material roll (not shown in the figure) placed beside the device is unloaded.

[0027] Among them, a first support roller 3 and a second support roller 4 are rotatably provided on the support plate 2, and the first support roller 3 and the second support roller 4 are both placed at the initial end of the electrode conveying track. A first guide roller 7 and a second guide roller 8 are also rotatably provided, and the first guide roller 7 and the second guide roller 8 are both placed at the tail end of the electrode conveying track; before the electrode passes through the metal roller 5 and the rubber roller 6, it first passes through the top of the first support roller 3 and the second support roller 4, passes through the first support roller 3 and the second support roller 4 to support the electrode during the conveying process, then passes between the metal roller 5 and the rubber roller 6, and finally passes between the first guide roller 7 and the second guide roller 8, passes through the first guide roller 7 and the second guide roller 8 to guide the electrode during the conveying process, so as to facilitate the subsequent winding up of the wrinkle-removed electrode.

[0028] Furthermore, a second swinging component is installed on the support plate 2 and is placed between the metal roller 5 and the first guide roller 7 (or between the rubber roller 6 and the second guide roller 8). The second swinging component is rotatably provided with a tension roller 9 for tensioning the pole piece, and the axial direction of the tension roller 9 is consistent with the axial direction of the metal roller 5. Specifically, after the pole piece material roll is unwound, the initial end of the pole piece first passes through the top of the first support roller 3 and the second support roller 4, then passes between the metal roller 5 and the rubber roller 6, then passes through the top of the tension roller 9, and finally passes between the first guide roller 7 and the second guide roller 8, and then is rolled up by the winding mechanism (not shown in the figure); before rolling up, the metal roller 5 is first driven to rotate to roll and convey the pole piece to be dewrinkled, and at the same time, the second swinging component is operated to drive the tension roller 9 to swing, so as to roll up the section of pole piece placed between the metal roller 5 and the first guide roller 7. The tensioning treatment is carried out. After a certain amount of electrode is rolled and conveyed, the metal roller 5 stops rotating, and then the winding mechanism (not shown in the figure) and the second swinging component are operated. The winding mechanism rolls up the electrode while the second swinging component drives the tension roller 9 to reset. The metal roller 5 is driven to rotate again to roll and convey the electrode to be dewrinkled, and at the same time, the second swinging component is operated again to drive the tension roller 9 to tension the electrode. This cycle is repeated to dewrinkle the electrode. Moreover, under the action of the metal roller 5 and the rubber roller 6 rolling and conveying the electrode, the efficiency of removing wrinkles on the electrode is further improved.

[0029] Preferably, a first fixing member 71 is provided on the support plate 2, and a second pressure sensor 73 is installed on the first fixing member 71, and a first connecting member 72 is rotatably provided at the end of the first guide roller 7, and the first connecting member 72 is installed at the bottom of the second pressure sensor 73; when the second swinging component controls the tension roller 9 to tension the pole piece, the pole piece will apply an upward force to the first guide roller 7 because the metal roller 5 and the rubber roller 6 clamp the pole piece, and the second pressure sensor 73 will detect the specified tension and then stop running the second swinging component to prevent the tension roller 9 from applying a large force on the pole piece and causing damage to the pole piece.

[0030] Additionally, a second connecting member 81 is rotatably provided at the end of the second guide roller 8, and the second connecting member 81 is fixedly provided on the support plate 2. Under the action of the second connecting member 81, the second guide roller 8 is rotatably provided on the support plate 2; a shell 201 is provided on the support plates 2 on both sides, and each mechanism is protected by the shell 201.

[0031] like Figure 3 As shown, the first swing component includes a first rotating shaft 61 which is rotatably set on the support plate 2 and whose axial direction is parallel to the axial direction of the metal roller 5. A first swing arm 62 is fixedly provided on the first rotating shaft 61, and the rubber roller 6 is rotatably set on the execution end of the first swing arm 62. After the pole piece passes through between the metal roller 5 and the rubber roller 6, the first rotating shaft 61 is controlled to rotate on the support plate 2, so that the rubber roller 6 can be driven to move toward the direction of the metal roller 5 to clamp the pole piece, and then the metal roller 5 is driven to rotate, so that the pole piece can be rolled and conveyed.

[0032] In order to control the rotation of the first rotating shaft 61, a roller 67 is also provided on the execution end of the first swing arm 62, a first cylinder 64 with an output shaft facing upward is installed on the base 1, and a first pressure sensor 65 is installed on the end of the telescopic rod of the first cylinder 64, and a push block 66 for pushing the roller 67 is provided on the first pressure sensor 65. The first cylinder 64 is operated to drive the push block 66 to move up and down, and under the action of the roller 67 and the first rotating shaft 61, the first swing arm 62 is pushed to swing, thereby driving the rubber roller 6 to clamp the pole piece; the pressure of the rubber roller 6 clamping the pole piece is detected by the first pressure sensor 65, and when the rubber roller 6 applies a certain pressure to the pole piece, the first cylinder 64 stops running to prevent damage to the pole piece due to excessive pressure.

[0033] like Figure 3-4As shown, the second swing component includes a second rotating shaft 91 which is rotatably set on the support plate 2 and whose axial direction is parallel to the axial direction of the metal roller 5. A second swing arm 92 is fixedly set on the second rotating shaft 91, and the tension roller 9 is rotatably set on the execution end of the second swing arm 92. By controlling the second rotating shaft 91 to rotate on the support plate 2, the tension roller 9 can be driven to swing, so that the pole piece is in a tensioned state and wrinkles are removed before subsequent winding processing; while winding, the second rotating shaft 91 is controlled to rotate in the opposite direction to reset the tension roller 9. While driving the metal roller 5 to rotate to roll and convey the pole piece, the second rotating shaft 91 can be controlled to rotate again to drive the tension roller 9 to swing to tighten the pole piece.

[0034] In order to control the rotation of the second rotating shaft 91, a second cylinder 93 with a telescopic rod facing upward is installed on the support plate 2, the tail end of the second cylinder 93 is rotatably arranged on the support plate 2, and a third connecting member 94 is fixedly provided at one end of the second rotating shaft 91, and the end of the third connecting member 94 is rotatably connected to the end of the telescopic rod of the second cylinder 93. The second cylinder 93 is operated to push the third connecting member 94 to swing, and under the action of the transmission of the second rotating shaft 91, the second swing arm 92 is driven to swing, and the tension roller 9 is used to tension the pole piece.

[0035] When the pole piece roll is dewrinkled, the end of the pole piece roll needs to be glued and connected with the beginning of the next pole piece roll. In order to achieve the connection between the pole piece rolls, a glue sticking platform 10 is installed on the support plate 2 and is placed between the first support roller 3 and the second support roller 4. After the above two ends are placed on the glue sticking platform 10, the two ends can be glued on the glue sticking platform 10 by tape; in addition, in order to prevent the pole piece from shifting during gluing, a pair of pressing components for pressing the pole piece are also installed on the support plate 2, and the pressing components are respectively placed above the first support roller 3 and the second support roller 4. The pair of pressing components are used to press the end of the front pole piece roll and the beginning of the rear pole piece roll respectively, and the above two ends can be glued after pressing. The clamping component includes a second fixing member 11 and a third cylinder 12 mounted on the second fixing member 11. The telescopic rod of the third cylinder 12 is arranged downward, and a pressing rod 13 for pressing the pole piece is fixed on the end of the telescopic rod. After the end of the front pole piece roll and the beginning of the rear pole piece roll are placed on the glue sticking platform 10, the third cylinder 12 is operated to drive the pressing rod 13 to move downward, so that the front and rear pole pieces are pressed by different pressing rods 13, and the pole piece will not be offset during glue sticking. A rubber pad 14 is provided on the side of the pressing rod 13 that contacts the pole piece, and the rubber pad 14 prevents the pressing rod 13 from pressing the pole piece ring.

[0036] like Figure 5As shown, a pair of guide plates 15 for limiting the electrode pieces are provided at the initial end of the electrode piece conveying track, and a control component for controlling the guide plates 15 to move closer to or away from each other is installed on the support plate 2; under the action of this pair of guide plates 15, the electrode pieces in the conveying process always move in one direction to prevent displacement during transportation, and when gluing is required, the electrode pieces at the front and rear ends can be aligned, thereby improving the gluing efficiency.

[0037] Furthermore, the control component includes a guide rod 151 fixedly arranged on the support plate 2 and having a length direction parallel to the axial direction of the metal roller 5. The guide plates 15 on both sides are slidably arranged on the guide rod 151. In order to control the guide plates 15 to move closer to or farther away from each other on the guide rod 151, a positive and negative threaded rod 152 whose axial direction is parallel to the length direction of the guide rod 151 is rotatably arranged on the support plate 2, and different guide plates 15 are respectively threadedly connected with different threaded parts on the positive and negative threaded rod 152. The support plate 2 is also equipped with a second servo motor 153 for driving the positive and negative threaded rod 152 to rotate. By running the second servo motor 153 to drive the positive and negative threaded rod 152 to rotate, the guide plates 15 on both sides are driven to move closer to or farther away from each other under the action of the opposite threads, so as to adjust the spacing between the two guide plates 15 to adapt to pole pieces of different sizes.

[0038] In summary, it can be seen that the utility model has the above-mentioned excellent characteristics, which can enhance the performance unprecedented in the prior art and become a product with great practical value.

[0039] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. A rolling flattening and wrinkle removal device for pole pieces, characterized in that: The invention comprises a base (1) and a support plate (2) mounted on the base (1); a first swinging component is mounted on the support plate (2); a metal roller (5) rotatably arranged axially horizontally is also mounted on the support plate; a rubber roller (6) rotatably arranged axially in line with the metal roller (5) is mounted on the first swinging component; the first swinging component controls the rubber roller (6) to move in a direction close to the metal roller (5) to press the pole piece; and a first servo motor (51) is mounted on the support plate (2) for driving the metal roller (5) to rotate to roll-press and transport the pole piece. A second swinging component is mounted on the support plate (2), and a tension roller (9) for tensioning the pole piece is rotatably mounted on the second swinging component, and the axial direction of the tension roller (9) is consistent with the axial direction of the metal roller (5); a pair of guide plates (15) for limiting the pole piece are mounted at the initial end of the pole piece conveying track, and a control component for controlling the guide plates (15) to move closer to or farther from each other is mounted on the support plate (2).

2. A rolling flattening and wrinkle-removing device for pole pieces according to claim 1, characterized in that: A first supporting roller (3) and a second supporting roller (4) are rotatably provided on the supporting plate (2), and the first supporting roller (3) and the second supporting roller (4) are both placed at the initial end of the pole piece conveying track. A first guiding roller (7) and a second guiding roller (8) are also rotatably provided, and the first guiding roller (7) and the second guiding roller (8) are both placed at the rear end of the pole piece conveying track.

3. The rolling flattening and wrinkle removing device for pole pieces according to claim 2, characterized in that: A first fixing member (71) is provided on the support plate (2), and a second pressure sensor (73) is installed on the first fixing member (71). A first connecting member (72) is rotatably provided at the end of the first guide roller (7), and the first connecting member (72) is installed at the bottom of the second pressure sensor (73).

4. The rolling flattening and wrinkle removing device for pole pieces according to claim 1, characterized in that: The first swing component comprises a first rotating shaft (61) rotatably arranged on the support plate (2) and having an axial direction parallel to the axial direction of the metal roller (5); a first swing arm (62) is fixedly arranged on the first rotating shaft (61), and the rubber roller (6) is rotatably arranged on the execution end of the first swing arm (62); a roller (67) is also arranged on the execution end of the first swing arm (62); a first cylinder (64) with an output shaft arranged upward is installed on the base (1), and a first pressure sensor (65) is installed on the end of the telescopic rod of the first cylinder (64); and a push block (66) for pushing the roller (67) is provided on the first pressure sensor (65).

5. The rolling flattening and wrinkle removing device for pole pieces according to claim 1, characterized in that: The second swing component comprises a second rotating shaft (91) rotatably arranged on the support plate (2) and having an axial direction parallel to the axial direction of the metal roller (5); a second swing arm (92) is fixedly arranged on the second rotating shaft (91), and the tension roller (9) is rotatably arranged on the execution end of the second swing arm (92); a second cylinder (93) with a telescopic rod arranged upward is installed on the support plate (2), the tail end of the second cylinder (93) is rotatably arranged on the support plate (2), and a third connecting member (94) is fixedly arranged on one end of the second rotating shaft (91), and the end of the third connecting member (94) is rotatably connected to the end of the telescopic rod of the second cylinder (93).

6. The rolling flattening and wrinkle removing device for pole pieces according to claim 2, characterized in that: A glue sticking platform (10) disposed between a first supporting roller (3) and a second supporting roller (4) is installed on the supporting plate (2), and a pair of pressing components for pressing the pole piece are also installed, and the pressing components are respectively located above the first supporting roller (3) and the second supporting roller (4).

7. The rolling flattening and wrinkle removing device for pole pieces according to claim 6, characterized in that: The pressing component comprises a second fixing member (11) and a third cylinder (12) mounted on the second fixing member (11); the telescopic rod of the third cylinder (12) is arranged downward, and a pressing rod (13) for pressing the pole piece is fixedly arranged at the end of the telescopic rod; a rubber pad (14) is arranged on the side of the pressing rod (13) that contacts the pole piece.

8. The rolling flattening and wrinkle removing device for pole pieces according to claim 1, characterized in that: The control component comprises a guide rod (151) fixedly arranged on a support plate (2) and having a length direction parallel to the axial direction of a metal roller (5); guide plates (15) on both sides are slidably arranged on the guide rod (151); a positive and negative threaded rod (152) having an axial direction parallel to the length direction of the guide rod (151) is rotatably arranged on the support plate (2); different guide plates (15) are respectively threadedly connected to different threaded parts on the positive and negative threaded rod (152); and a second servo motor (153) for driving the positive and negative threaded rod (152) to rotate is also arranged on the support plate (2).

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