Pole piece roll changing device

Abstract

The utility model relates to the technical field of lithium battery production equipment, and discloses a pole piece reel changing device, which comprises an adsorption curling mechanism, a winding roller, a vacuum adsorption piece arranged on one side of the winding roller and used for adsorbing a pole piece, a pressing assembly arranged on the winding roller, the winding roller and the pressing assembly cooperating with each other to clamp the pole piece adsorbed by the vacuum adsorption piece, the curling roller is in transmission connection with a rotary driving part for driving the curling roller to rotate; the transmission mechanism is in transmission connection with the curling roller and used for driving the adsorption curling mechanism to be close to or away from the unwinding station; and the shearing mechanism is arranged on one side of the adsorption curling mechanism and is used for shearing the pole piece. The device has the technical effects that the smoothness of the pole piece conveying and roll changing process can be ensured, and the material belt roll changing efficiency of the pole piece is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium battery production equipment, and specifically relates to a pole piece reel changing device. Background Art

[0002] The battery cell is an important component of the lithium battery assembly, usually composed of pole pieces, electrolyte, diaphragm and shell. The pole pieces include positive pole pieces and negative pole pieces. When the battery is charged and discharged, lithium ions move back and forth between the positive pole pieces and the negative pole pieces to complete the conversion and storage of electrical energy. Existing battery cell production is usually carried out using battery cell winding equipment, which can automatically wind the pole pieces and diaphragms in a specific stacking order to generate battery cell components.

[0003] The battery cell winding equipment includes an unwinding device, which includes an unwinding station for placing the electrode material roll, and a electrode roll changing device is arranged on one side of the unwinding station. The unwinding device unwinds the electrode material strip at the unwinding station to realize the electrode loading. At the same time, the electrode roll changing device can replace the old material roll that is about to be unwound. After the old material roll is replaced with a new material roll, the electrode can realize continuous loading operation. At present, the electrode roll changing device includes a clamping roller group, and a clamping area for clamping the electrode is formed in the clamping roller group. The clamping roller group clamps the cutting part of the old material strip to be cut at the old material roll, and the old material roll is cut. The staff places the new material roll at the unwinding station. The clamping roller group transfers the cutting part of the old material strip to the new material roll after cutting, and the cutting part of the old material strip is bonded to the head of the new material strip, and the electrode completes the roll changing operation.

[0004] However, in the process of the clamping roller group clamping the electrode sheet, it is necessary to ensure that the electrode sheet enters the clamping area to facilitate the accurate clamping of the clamping roller group and ensure the smoothness of the transmission and reel changing process of the electrode sheet. The clamping roller group has the problem of difficulty in clamping the electrode sheet, which affects the efficiency of reel replacement. Utility Model Content

[0005] In order to solve the shortcomings of the prior art, the utility model provides a pole piece reel changing device. When the pole piece is reeled, the old strip is first adsorbed by a vacuum adsorption component for preliminary positioning, and then clamped by a winding roller and a clamping assembly. The adsorption and curling mechanism is beneficial to improving the smoothness of the pole piece transmission and reel changing process, thereby improving the pole piece's strip reel changing efficiency.

[0006] The technical effects to be achieved by the utility model are achieved through the following technical aspects:

[0007] The utility model provides a pole piece reel changing device, comprising

[0008] The adsorption and curling mechanism comprises a curling roller, a vacuum adsorption member for adsorbing the pole piece is arranged on one side of the curling roller, a clamping assembly is arranged on the curling roller, the curling roller cooperates with the clamping assembly to clamp the pole piece adsorbed by the vacuum adsorption member, and the curling roller is transmission-connected with a rotating driving member for driving the curling roller to rotate;

[0009] A transmission mechanism, which is in transmission connection with the winding roller and is used to drive the adsorption and winding mechanism to move closer to or away from the unwinding station; and

[0010] The shearing mechanism is arranged on one side of the adsorption and curling mechanism and is used for shearing the pole piece.

[0011] In some implementations, the curling roller includes a clamping surface, the clamping assembly includes a clamping block, the clamping block is rotatably disposed on one side of the curling roller, the clamping block is transmission-connected to a clamping drive assembly, and the clamping drive drives the clamping block to rotate to the clamping surface to clamp the pole piece.

[0012] In some implementations, the compaction drive assembly includes:

[0013] A rack is slidably arranged on the curling roller, and the rack is transmission-connected with a sliding drive member for driving the rack to slide; and a gear is meshingly connected with the rack, the gear is rotationally connected with the curling roller, the gear is connected with the pressure block, and drives the pressure block to approach or move away from the pressing surface.

[0014] In some implementations, a guide assembly for limiting the sliding direction of the rack is provided on one side of the rack, and the guide assembly includes: a guide seat, provided on one side of the rack; and a guide rod, which is passed through the guide seat and is slidably connected to the guide seat, and the guide rod is passed through the curling roller and is slidably connected to the curling roller.

[0015] In some implementations, the adsorption and curling mechanism includes a bearing seat, the bearing seat is rotatably connected to the curling roller, and a conveying area for conveying the electrode sheet is formed on one side of the unwinding station;

[0016] The transmission mechanism includes a swing arm assembly, including a swing arm, the swing arm is connected to the bearing seat, the swing arm transmission connection is used to drive the swing arm to swing to approach or move away from the unwinding station; and a handling assembly, used to drive the swing arm assembly to enter or exit the conveying area.

[0017] In some implementations, a photoelectric switch is disposed on one side of the bearing seat, and a sensor sheet used in conjunction with the photoelectric switch is disposed on one side of the winding roller.

[0018] In some implementations, the shearing mechanism includes a mounting base; a pair of scissors rotatably connected to the mounting base; and a shearing drive assembly, including a jaw cylinder, which drives the scissors to open or close, and a cam follower is provided between the jaw cylinder and the scissors.

[0019] In some implementations, a bottom plate is disposed on one side of the mounting seat, and a shearing rotating member is disposed on the bottom plate. The shearing rotating member drives the scissors to rotate to a state perpendicular to the pole piece via the mounting seat.

[0020] In some implementations, the shear rotating member includes a rotating block, which is rotatably disposed on the base plate, the rotating block is connected to the mounting seat, the rotating block is transmission-connected to a shear cylinder, and the shear cylinder is rotatably connected to the rotating block and the base plate, respectively.

[0021] In some implementations, the pole piece reel changing device further includes an auxiliary roller for changing the pole piece conveying path, and the auxiliary roller is transmission-connected to a lifting assembly for driving the auxiliary roller to move closer to or away from the pole piece.

[0022] In summary, the utility model has at least the following benefits:

[0023] The utility model provides a pole piece reel changing device. During the pole piece reel changing process, the transmission mechanism drives the adsorption and curling mechanism to move to the unwinding station, and drives the adsorption and curling mechanism to move to one side of the old material strip. The adsorption and curling mechanism moves the old material strip, opens the vacuum adsorption component, and the vacuum adsorption component adsorbs the old material strip. The clamping component cooperates with the curling roller to clamp the old material strip. The shearing mechanism cuts the old material strip, and the new material strip is replaced at the unwinding station. The rotating drive member drives the curling roller to rotate, and the cut portion of the old material strip rotates to a position corresponding to the head of the new material strip. The transmission mechanism drives the curling roller again to transfer the cut portion of the old material strip to the new material strip. The cut portion of the old material strip and the head of the new material strip are attached to the tape through double-sided tape to connect the tape, and the pole piece realizes the tape exchange operation.

[0024] During the cutting process of the old material strip, the vacuum adsorption component adsorbs the old material strip, and the old material strip is initially positioned. The old material strip is then clamped by the winding roller and the clamping component. The old material strip is accurately fixed, which is beneficial to the cutting operation of the shearing mechanism, and the transmission and reeling process of the electrode is smoother, which in turn helps to improve the efficiency of the electrode strip exchange. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a front view of a pole piece reel changing device according to a specific embodiment of the utility model.

[0026] Figure 2 It is a side view of the adsorption curling mechanism and the transmission mechanism of a specific embodiment of the utility model.

[0027] Figure 3 It is a side view of one end of the bearing seat in the axial direction of a specific embodiment of the utility model.

[0028] Figure 4 This is a front view of the shearing mechanism of a specific embodiment of the utility model when cutting off the old material strip.

[0029] Figure 5 It is a front view of a new material belt and an old material belt being connected according to a specific embodiment of the utility model.

[0030] Figure 6 It is a schematic diagram of the overall structure of the adsorption curling mechanism of a specific embodiment of the utility model.

[0031] Figure 7 This is a schematic diagram of the overall structure of the adsorption curling mechanism of a specific embodiment of the utility model after the curling roller is hidden.

[0032] Figure 8 It is a schematic diagram of the overall structure of a specific embodiment of the utility model in which a curling roller and a pressing block cooperate to clamp a used material strip.

[0033] Fig. 9 It is a schematic diagram of the overall structure of the shearing mechanism of a specific embodiment of the utility model.

[0034] Fig.10 It is a side view of the shearing mechanism of a specific embodiment of the utility model.

[0035] Markings in the figure:

[0036] 1. Adsorption and curling mechanism; 11. Curling roller; 111. Pressing surface; 12. Vacuum adsorption member; 13. Pressing assembly; 131. Pressing block; 132. Pressing drive assembly; 1321. Rack; 1322. Sliding drive member; 1323. Gear; 1324. Connecting shaft; 133. Guide assembly; 1331. Guide seat; 1332. Guide rod; 14. Rotating drive member; 141. Synchronous pulley; 1411. Induction sheet; 142. Synchronous motor; 15. Bearing seat; 151. Photoelectric switch;

[0037] 2. Transmission mechanism; 21. Swing arm assembly; 211. Swing arm; 212. Swing arm driving member; 22. Transport assembly; 221. Fixed seat; 222. Transport cylinder;

[0038] 3. Shearing mechanism; 31. Mounting seat; 32. Scissors; 33. Scissor driving assembly; 331. Claw cylinder; 332. Cam follower; 34. Bottom plate; 35. Rotating block; 36. Shearing cylinder;

[0039] 4. Unwinding station; 41. Conveying area; 42. Roller support; 43. Roller; 44. Old material roll; 45. New material roll; 46. Old material tape;

[0040] 5. Auxiliary roller; 51. Auxiliary roller bracket. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. The described implementation is a part of the implementation of the utility model, not all of the implementations.

[0042] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0043] Embodiment 1:

[0044] Please see attached Figure 1-5 The utility model discloses a pole piece rewinding device, comprising an adsorption and curling mechanism 1, a transmission mechanism 2 and a shearing mechanism 3, wherein the transmission mechanism 2 is connected to the adsorption and curling mechanism 1 by transmission.

[0045] Among them, a conveying area 41 for conveying the electrode sheet is formed on one side of the unwinding station 4, and an unwinding assembly for unwinding the electrode sheet is arranged at the unwinding station 4. A roller bracket 42 is arranged on the unwinding assembly, and a roller 43 is rotatably arranged on the roller bracket 42. The electrode sheet is conveyed to the winding device through the roller 43.

[0046] The adsorption curling mechanism 1 is arranged in the conveying area 41 and is located at the bottom of the roller bracket 42. The adsorption curling mechanism 1 includes a curling roller 11, which is specifically in the shape of a square box. The curling roller 11 includes a pressing surface 111, and the curling roller 11 is provided with a vacuum adsorption member 12 for adsorbing the pole piece on the adjacent side of the pressing surface 111. Specifically, the vacuum adsorption member 12 is preferably but not limited to a vacuum suction cup. The vacuum adsorption member 12 is evacuated by connecting the air pipe to form a negative pressure environment. The vacuum adsorption member 12 adsorbs the pole piece under the negative pressure environment, which can play a preliminary positioning effect during the cutting and conveying process of the old material strip 46.

[0047] A bearing seat 15 is provided on one side of the winding roller 11, and a bearing is provided between the bearing seat 15 and the winding roller 11 to realize the rotation connection between the bearing seat 15 and the winding roller 11. Specifically, the rotation axis of the winding roller 11 is arranged parallel to the roller 43. A clamping assembly 13 is provided on the side of the winding roller 11 away from the bearing seat 15. The winding roller 11 cooperates with the clamping assembly 13 at the clamping surface 111 to clamp the old material strip 46 adsorbed by the vacuum adsorption member 12.

[0048] The winding roller 11 is provided with a rotating drive member 14 on the side where the bearing seat 15 is located, and is used to drive the winding roller 11 to rotate. In a preferred embodiment, the rotating drive member 14 includes a synchronous pulley 141 and a synchronous motor 142. The synchronous pulley 141 is connected to the winding roller 11 to drive the winding roller 11 to rotate relative to the bearing seat 15. The output end of the synchronous motor 142 is connected to the synchronous pulley 141 through a synchronous belt, and the synchronous motor 142 drives the winding roller 11 to rotate through the synchronous pulley 141 and the synchronous belt. The rotating drive member 14 drives the winding roller 11 to rotate, which can ensure that the vacuum adsorption assembly rotates to a position that is convenient for adsorbing the old material belt 46, thereby improving the convenience and smoothness of the operation.

[0049] In a preferred embodiment, a sensing sheet 1411 is installed on the side of the synchronous pulley 141 away from the winding roller 11, and a photoelectric switch 151 is provided on the side of the sensing sheet 1411 of the bearing seat 15. The photoelectric switch 151 cooperates with the sensing sheet 1411 to control the winding roller 11 to rotate to the origin after the belt exchange operation is completed. When the synchronous pulley 141 drives the sensing sheet 1411 to rotate to the photoelectric switch 151, the photoelectric switch 151 detects the shielding or reflection of the sensing sheet 1411, and the winding roller 11 realizes the control of the rotation position.

[0050] A transmission mechanism 2 for driving the adsorption curling mechanism 1 to move closer or further away is provided on one side of the bearing seat 15. In a preferred embodiment, the transmission mechanism 2 includes a swing arm assembly 21 and a transport assembly 22, wherein the swing arm assembly 21 includes a swing arm 211, and the swing arm 211 is connected to the bearing seat 15 to drive the bearing seat 15 to swing. The swing arm 211 is transmission-connected to a swing arm driving member (212) for driving the swing arm 211 to swing closer to or further away from the unwinding station 4. In some specific embodiments shown, the swing arm driving member (212) adopts a motor. It can be understood that this is not a specific limitation on the swing arm driving member (212), and technicians in related fields can replace it on this basis.

[0051] In a preferred embodiment, the transport assembly 22 includes a fixed seat 221, which is arranged on a side of the swing arm 211 away from the bearing seat 15, and the fixed seat 221 is rotatably connected to the swing arm 211. Specifically, the rotation axis of the swing arm 211 is arranged parallel to the roller 43. The swing arm driving member (212) is installed at the fixed seat 221, and a transport cylinder 222 is connected to one side of the fixed seat 221 in a transmission manner. The piston rod end of the transport cylinder 222 is connected to the fixed seat 221, and the transport cylinder 222 drives the fixed seat 221, the swing arm 211 and the adsorption curling mechanism 1 to exit or enter the conveying area 41. As shown in some specific embodiments, a slide seat is arranged at the bottom of the fixed seat 221, and the slide seat is slidably connected to a slide rail, and the slide rail cooperates with the slide seat to guide the sliding of the fixed seat 221.

[0052] In a preferred embodiment, an auxiliary roller bracket 51 is provided on the unwinding assembly, and an auxiliary roller 5 for changing the transmission path of the pole piece is rotatably provided on the auxiliary roller bracket 51. Specifically, the auxiliary roller 5 is arranged parallel to the over roller 43. The auxiliary roller 5 is connected to the transmission with a lifting assembly. As shown in some specific embodiments, the lifting assembly is preferably but not limited to a cylinder, a linear module, etc. The lifting assembly drives the auxiliary roller bracket 51 to rise and fall so that the auxiliary roller 5 presses or moves away from the pole piece. The auxiliary roller 5 changes the transmission path of the pole piece, which is conducive to the adsorption and curling mechanism 1 to adsorb and clamp the pole piece.

[0053] When the unwinding assembly unwinds the old material roll 44, the old material tape 45 is transmitted through the roller 43. The passing roller 43 can support the old material tape 46 so that the winding roller 11 can adsorb the old material tape 46 through the vacuum adsorption component 12. The auxiliary roller 5 drives the auxiliary roller bracket 51 to rise and fall through the lifting assembly to perform lifting and lowering adjustment. The auxiliary roller 5 changes the tape running path of the old material tape 46, which is beneficial to improving the adaptability of the winding roller 11.

[0054] A shearing mechanism 3 is provided on one side of the adsorption and curling mechanism 1 , and the shearing mechanism 3 can cut the old material strip 46 to perform a strip replacement operation of the electrode.

[0055] When the pole piece is replaced with a belt, the transport assembly 22 drives the swing arm 211 and the adsorption and curling mechanism 1 to enter the conveying area 41, and the lifting assembly drives the auxiliary roller 5 to descend to the old material belt 46, and the auxiliary roller 5 presses down the old material belt 46. The pressing assembly 13 is in the open state. At this time, the transport assembly 22 drives the swing arm 211 and the adsorption and curling mechanism 1 to move a certain distance to the wallboard again. The adsorption and curling mechanism 1 is located on one side of the old material belt 46. The swing arm assembly 21 drives the adsorption and curling mechanism 1 to approach the old material belt 46 and move the old material belt 46 to a fixed position. The vacuum adsorption part 12 starts the vacuum adsorption of the old material belt 46, and the old material belt 46 is initially fixed. The pressing assembly 13 cooperates with the curling roller 11 to clamp the old material belt 46, and the old material belt 46 is further fixed. The shearing mechanism 3 cuts off the old material belt 46, and the lifting assembly drives the auxiliary roller 5 to rise and return to its position. The unwinding station 4 replaces the old material roll 44 with the new material roll 45. The vacuum adsorption assembly 12 is closed, the swing arm assembly 21 drives the adsorption and curling mechanism 1 to swing to the new material roll 45, and the rotary drive member 14 drives the curling roller 11 to rotate, so that the cut end of the old material strip 46 fits with the head of the new material strip, and the old material strip 46 and the new material strip are bonded by double-sided tape to complete the tape connection. The clamping assembly 13 releases the old material strip 46, the lifting assembly drives the auxiliary roller 5 to descend and press the old material strip 46 again, the swing arm assembly 21 drives the adsorption and curling mechanism 1 to swing back to the side away from the unwinding station 4, the auxiliary roller 5 rises, and the transport assembly 22 drives the swing arm assembly 21 and the adsorption and curling mechanism 1 back to the original position.

[0056] The cutting and conveying process of the old material strip 46 is fixed step by step through the vacuum adsorption component and the clamping component 13, which is conducive to improving the smoothness of the strip replacement process, so as to improve the problem that the existing clamping roller group is difficult to accurately clamp the pole piece, resulting in high equipment failure rate and low material roll replacement efficiency.

[0057] Embodiment 2:

[0058] The difference between this embodiment and embodiment 1 is that this embodiment further optimizes the structure of the clamping assembly 13 of the utility model, see Figure 6~Figure 8 .

[0059] See also Figure 4~Figure 6 The clamping assembly 13 of this embodiment includes a clamping block 131, which is rotatably connected to the winding roller 11. In some specific embodiments shown, a non-slip protrusion is provided on one side of the clamping block 131. When the clamping block 131 rotates to the clamping surface 111, the non-slip protrusion is located on the side of the clamping block 131 close to the clamping surface 111 to increase the friction between the clamping block 131 and the old material strip 46, thereby improving the stability of the clamping block 131 and the winding roller 11 when clamping the old material strip 46. A clamping drive assembly 132 is transmission-connected to one side of the clamping block 131 for driving the clamping block 131 to rotate close to or away from the clamping surface 111.

[0060] In a preferred embodiment, the pressing drive assembly 132 includes a gear 1323, a connecting shaft 1324 is provided between the gear 1323 and the pressing block 131, the connecting shaft 1324 is rotationally connected to the curling roller 11, the connecting shaft 1324 sequentially penetrates the gear 1323 and the pressing block 131, and the gear 1323 is connected to the pressing block 131 so that when the gear 1323 rotates, it can drive the pressing block 131 to rotate synchronously. The gear 1323 is meshingly connected with a rack 1321, the rack 1321 penetrates the curling roller 11 and is slidably disposed on the curling roller 11, and one end of the rack 1321 that penetrates the curling roller 11 is transmission-connected to a sliding drive member 1322 for driving the rack 1321 to slide. Specifically, the sliding drive member 1322 is preferably but not limited to a sliding cylinder, which drives the rack 1321 to extend out or enter the curling roller 11, and the rack 1321 is meshed with the gear 1323 to drive the pressing block 131 to rotate.

[0061] In a preferred embodiment, a guide assembly 133 is provided on the curling roller 11, and the guide assembly 133 includes a guide seat 1331, and the guide seat 1331 is connected to the side of the rack 1321 away from the tooth surface. A guide rod 1332 is passed through the guide seat 1331, and the guide seat 1331 is fixedly connected to the guide rod 1332. The guide rod 1332 is passed through one end of the curling roller 11 away from the bearing seat 15 and is slidably connected to the curling roller 11. When the guide rod 1332 slides and shuttles on the curling roller 11, the guide rod 1332 drives the guide seat 1331 to slide, so as to limit the sliding direction of the rack 1321 and improve the rotation stability of the gear 1323 and the pressure block 131.

[0062] When the sliding drive assembly drives the rack 1321 to enter the winding roller 11, the gear 1323 drives the pressing block 131 to rotate to a state away from the pressing surface 111, and the pressing assembly 13 is opened; when the sliding drive assembly drives the rack 1321 to extend out of the winding roller 11, the gear 1323 drives the pressing block 131 to rotate and approach the pressing surface 111, and the pressing block 131 and the winding roller 11 clamp and fix the old material strip 46. The clamping assembly 13 and the winding roller 11 are compact in structure and easy to operate, which is conducive to improving the smoothness of the clamping and conveying process of the old material strip 46.

[0063] Embodiment 3:

[0064] The difference between this embodiment and embodiment 1 is that this embodiment further optimizes the structure of the shearing mechanism 3 of the utility model, see Fig. 9 and Fig.10 .

[0065] The shearing mechanism 3 of this embodiment includes a bottom plate 34, specifically, the bottom plate is vertically arranged relative to the roller 43, a shearing rotating member is arranged on the bottom plate 34, and the shearing rotating member includes a rotating block 35, the rotating block 35 is rotatably connected with the bottom plate 34, specifically, the rotating shaft at the rotating block is vertically arranged relative to the roller 43. A shearing cylinder 36 is arranged between the rotating block 35 and the bottom plate 34, specifically, a fixed rotating shaft is arranged between the cylinder body of the shearing cylinder 36 and the bottom plate 34 to realize the rotation connection, a pin is arranged between the piston rod and the rotating block 35 to realize the rotation connection, and the shearing cylinder 36 drives the rotating block 35 to rotate relative to the bottom plate 34 through the change of stroke.

[0066] A clamping cylinder 331 is installed on one side of the rotating block 35. The clamping cylinder 331 is rotatably connected to the bottom plate 34, and a clamping shaft is arranged between the clamping cylinder 331 and the bottom plate 34. A mounting seat 31 is connected to one side of the clamping cylinder 331, and a scissors 32 is arranged on the mounting seat 31. Specifically, the scissors 32 include a first blade, a second blade and a scissors 32 shaft, and the first blade and the second blade are rotatably connected to the mounting seat 31 through the scissors 32 shaft. A cam follower 332 is arranged between the scissors 32 and the clamping cylinder 331. When the clamping cylinder 331 is opened, the cam follower 332 drives the first blade and the second blade to rotate relative to the scissors 32 shaft, and the scissors 32 are in an open state; when the clamping cylinder 331 is closed, the cam follower 332 also drives the first blade and the second blade to rotate in the opposite direction relative to the scissors 32 shaft, and the scissors 32 are in a closed state. The clamping cylinder 331 drives the scissors 32 to open or close, thereby realizing the operation of cutting the old material strip 46.

[0067] During the process of exchanging the pole piece, the scissors 32 are in the starting state parallel to the bottom plate 34. When the swing arm 211 assembly 21 drives the adsorption and curling mechanism 1 to move the old material strip 46 to one side of the scissors 32 mechanism, the adsorption and curling mechanism 1 adsorbs the old material strip 46 through the vacuum adsorption component 12, and clamps the old material strip 46 with the curling roller 11 through the clamping assembly 13. The piston rod end of the shearing cylinder 36 retracts to drive the rotating block 35 to rotate, and then the rotating block 35 drives the clamping cylinder 331, the mounting seat 31 and the scissors 32 to rotate, and the scissors 32 are in a shearing state perpendicular to the bottom plate 34. At this time, the clamping cylinder 331 is opened and the scissors 32 are in an open state. As the scissors 32 rotate to the shearing state, the old material strip 46 is located between the first blade and the second blade. When the clamping cylinder 331 is closed, the scissors 32 are closed to achieve the cutting of the old material strip 46.

[0068] After the shearing mechanism 3 completes the shearing process of the old material strip 46, the piston rod end of the shearing cylinder 36 extends and drives the rotating block 35 to rotate again, and the rotating block 35 causes the clamping cylinder 331, the mounting seat 31 and the scissors 32 to rotate back to their original positions, and the scissors 32 are restored to a state parallel to the bottom plate 34. The shearing mechanism 3 can adapt to the shearing requirements of different angles, which is conducive to improving the flexibility of the use of the shearing mechanism 3.

[0069] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0070] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0071] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0072] In the present utility model, unless otherwise clearly specified and limited, the first feature being above or below the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being above, above, and above the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being below, below, and below the second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0073] Although the utility model is described in conjunction with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications and changes based on the above content. Therefore, all such substitutions, improvements and changes are included in the spirit and scope of the appended claims.

Claims

1. A pole piece reel changing device, characterized in that: include: The adsorption curling mechanism (1) comprises a curling roller (11), a vacuum adsorption member (12) for adsorbing a pole piece is arranged on one side of the curling roller (11), a pressing assembly (13) is arranged on the curling roller (11), the curling roller (11) cooperates with the pressing assembly (13) to clamp the pole piece adsorbed by the vacuum adsorption member (12), and the curling roller (11) is connected to a rotating driving member (14) for driving the curling roller (11) to rotate; A transmission mechanism (2) is connected to the winding roller (11) and is used to drive the adsorption winding mechanism (1) to move closer to or farther from the unwinding station (4); and The shearing mechanism (3) is arranged on one side of the adsorption and curling mechanism (1) and is used for shearing the pole piece.

2. The pole piece reel changing device according to claim 1, characterized in that: The curling roller (11) comprises a pressing surface (111), and the pressing assembly (13) comprises a pressing block (131). The pressing block (131) is rotatably arranged on one side of the curling roller (11), and the pressing block (131) is transmission-connected to a pressing drive assembly (132). The pressing drive assembly (132) drives the pressing block (131) to rotate to the pressing surface (111) to clamp the pole piece.

3. The pole piece reel changing device according to claim 2, characterized in that: The compaction drive assembly (132) comprises: a rack (1321) slidably disposed on the curling roller (11), the rack (1321) being drivingly connected to a sliding driving member (1322) for driving the rack (1321) to slide; and The gear (1323) is meshedly connected with the rack (1321), the gear (1323) is rotationally connected with the curling roller (11), the gear (1323) is connected with the pressing block (131), and drives the pressing block (131) to approach or move away from the pressing surface (111).

4. The pole piece reel changing device according to claim 3, characterized in that: A guide assembly (133) for limiting the sliding direction of the rack (1321) is provided on one side of the rack (1321), and the guide assembly (133) comprises: A guide seat (1331) is disposed on one side of the rack (1321); and The guide rod (1332) is passed through the guide seat (1331) and connected to the guide seat (1331); the guide rod (1332) is passed through the curling roller (11) and is slidably connected to the curling roller (11).

5. The pole piece reel changing device according to claim 1, characterized in that: The adsorption and curling mechanism (1) comprises a bearing seat (15), the bearing seat (15) is rotatably connected to the curling roller (11), and a conveying area (41) for conveying the electrode sheet is formed on one side of the unwinding station (4); The transmission mechanism (2) comprises A swing arm assembly (21), comprising a swing arm (211), wherein the swing arm (211) is connected to the bearing seat (15), and the swing arm (211) is drivingly connected to a swing arm driving member (212) for driving the swing arm (211) to swing closer to or farther from the unwinding station (4); and The transport assembly (22) is used to drive the swing arm assembly (21) to enter or exit the conveying area (41).

6. The pole piece reel changing device according to claim 5, characterized in that: A photoelectric switch (151) is disposed on one side of the bearing seat (15), and a sensing sheet (1411) used in conjunction with the photoelectric switch (151) is disposed on one side of the winding roller (11).

7. The pole piece reel changing device according to claim 1, characterized in that: The shearing mechanism (3) comprises: Mounting seat (31); Scissors (32) rotatably connected to the mounting seat (31); and The shearing drive assembly comprises a clamping cylinder (331), wherein the clamping cylinder (331) drives the scissors (32) to open or close, and a cam follower (332) is arranged between the clamping cylinder (331) and the scissors (32).

8. The pole piece reel changing device according to claim 7, characterized in that: A bottom plate (34) is provided on one side of the mounting seat (31), and a shearing rotating member is provided on the bottom plate (34). The shearing rotating member drives the scissors (32) to rotate to a state perpendicular to the pole piece via the mounting seat (31).

9. The pole piece reel changing device according to claim 8, characterized in that: The shear rotating member comprises a rotating block (35), the rotating block (35) is rotatably arranged on the base plate (34), the rotating block (35) is connected to the mounting seat (31), the rotating block (35) is transmission-connected to a shear cylinder (36), and the shear cylinder (36) is rotatably connected to the rotating block (35) and the base plate (34), respectively.

10. The pole piece reel changing device according to claim 1, characterized in that: The pole piece reel changing device further comprises an auxiliary roller (5) for changing the pole piece conveying path, and the auxiliary roller (5) is transmission-connected to a lifting assembly for driving the auxiliary roller (5) to move closer to or away from the pole piece.

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