Cutting and separating mechanism

Abstract

The utility model discloses a cutting and separating mechanism which is used for cutting a continuously conveyed pole piece into a pole piece head and a pole piece tail and separating the pole piece head and the pole piece tail by a certain distance. The cutting and separating mechanism comprises a first clamping piece assembly, a first driving part, a second clamping piece assembly, a cutting assembly and a second driving part. The first clamping piece assembly and the second clamping piece assembly are used for clamping or releasing the pole piece. The first driving part is connected with the first clamping piece assembly and drives the first clamping piece assembly to reciprocate in the pole piece conveying direction. The second clamping piece assembly is connected with the first clamping piece assembly through a first connecting piece and moves along with the movement of the first clamping piece assembly. And the cutting assembly is connected with the first piece clamping assembly and is used for cutting off the pole piece. One end of the second driving piece is connected with the second clamping piece assembly, the other end of the second driving piece is connected with the first connecting piece, and the second driving piece drives the second clamping piece assembly to be close to or away from the first clamping piece assembly. The cutting and separating mechanism disclosed by the utility model can improve the tape splicing precision of the pole piece.

Description

Technical Field

[0001] The utility model belongs to the field of lithium battery automation equipment, and particularly relates to a cutting and separating mechanism. Background Art

[0002] The cutting and separating mechanism precisely cuts a continuous pole piece according to a preset length to form a pole piece head and a pole piece tail, and the subsequent pasting mechanism connects these two parts at a certain interval to ensure that the adhesive tape is cut at the interval after the battery core winding is completed, avoiding burrs generated by directly cutting the pole piece and affecting the quality of the battery core.

[0003] The existing cutting and separating mechanism cuts the pole piece after accelerating to move synchronously with the pole piece. However, in the prior art, it is not convenient to control the speed matching between the cutting and separating mechanism and the pole piece, which affects the accuracy of pole piece tape connection. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a cutting and separating mechanism capable of improving the accuracy of tape connection.

[0005] To achieve the above purpose, the cutting and separating mechanism of the utility model is used to cut a continuously conveyed pole piece to form a pole piece head and a pole piece tail, and separate the pole piece head and the pole piece tail by a certain distance, including:

[0006] A first clip assembly for clamping or releasing the pole piece;

[0007] A first driving member connected to the first clip assembly to drive the first clip assembly to reciprocate along the pole piece conveying direction;

[0008] A second clip assembly for clamping or releasing the pole piece, the second clip assembly is connected to the first clip assembly through a first connecting member and moves along with the movement of the first clip assembly;

[0009] A cutting assembly connected to the first clip assembly and arranged between the first clip assembly and the second clip assembly for cutting the pole piece;

[0010] A second driving member, one end of which is connected to the second clip assembly and the other end is connected to the first connecting member, to drive the second clip assembly to approach or move away from the first clip assembly.

[0011] In an embodiment of the cutting and separating mechanism of the utility model, the first clip assembly, the cutting assembly, and the second clip assembly are all slidably mounted on a mounting plate through the same first slide rail.

[0012] In an embodiment of the cutting and separating mechanism of the utility model, the first clip assembly includes a pair of first clips arranged oppositely, and the pair of first clips can be driven to separate or approach each other.

[0013] In an embodiment of the cutting and separating mechanism of the present utility model, one of a pair of the first clamping pieces is connected to a first driving arm, the first driving arm is connected to a first cam, the cutting and separating mechanism further includes a first cam plate, a first cam groove is provided on the first cam plate, and the first cam cooperates with the first cam groove to drive the first clamping piece to approach or move away from the other first clamping piece.

[0014] In an embodiment of the cutting and separating mechanism of the present utility model, the second clamping piece assembly includes a pair of second clamping pieces arranged oppositely, and the pair of second clamping pieces can be driven to separate or approach each other.

[0015] In an embodiment of the cutting and separating mechanism of the present utility model, one of a pair of the second clamping pieces is connected to a second driving arm, the second driving arm is connected to a second cam, the cutting and separating mechanism further includes a second cam plate, a second cam groove is provided on the second cam plate, and the second cam cooperates with the second cam groove to drive the second clamping piece to approach or move away from the other second clamping piece.

[0016] In an embodiment of the cutting and separating mechanism of the present utility model, the cutting assembly includes a first cutting knife and a second cutting knife arranged oppositely, and the first cutting knife and the second cutting knife can be driven to move relative to each other.

[0017] In an embodiment of the cutting and separating mechanism of the present utility model, the first cutting knife is connected to a third driving arm, the third driving arm is connected to a third cam, the second cutting knife is connected to a fourth driving arm, the fourth driving arm is connected to a fourth cam, the cutting and separating mechanism further includes a third cam plate, a third cam groove and a fourth cam groove are provided on the third cam plate, the third cam cooperates with the third cam groove, and the fourth cam cooperates with the fourth cam groove to drive the first cutting knife and the second cutting knife to move relative to each other.

[0018] In an embodiment of the cutting and separating mechanism of the present utility model, both the third cam groove and the fourth cam groove respectively have a first convex portion and a second convex portion, and the first convex portion and the second convex portion are arranged oppositely and have the same axis of symmetry.

[0019] In an embodiment of the cutting and separating mechanism of the present utility model, the first clamping piece assembly further includes a third driving member, and the third driving member is connected to the cutting assembly to drive the cutting assembly to approach or move away from the first clamping piece assembly.

[0020] To sum up, in the cutting and separating mechanism of the present utility model, the first driving member directly drives the first clamping piece assembly to convey the pole piece to the position and then fix it, improving the pole piece conveying accuracy; after cutting the pole piece, the second driving member drives the head of the pole piece to be away from the tail of the pole piece by a certain interval, improving the pole piece joint accuracy. Brief Description of the Drawings

[0021] Figure 1 is a structural diagram of an embodiment of the cutting and separating mechanism of the present utility model;

[0022] Figure 2 is Figure 1 a structural diagram of the first clip assembly in

[0023] Figure 3 is a structural diagram of the cooperation between the first cam and the first cam groove in an embodiment of the cutting and separating mechanism of the present utility model;

[0024] Figure 4 is Figure 1 a structural diagram of the second clip assembly in

[0025] Figure 5 is Figure 1 a structural diagram of the cutting assembly in

[0026] Figure 6 is Figure 1 a structural diagram of the third cam plate in

[0027] In the figure: 10, pole piece; 11, head of the pole piece; 12, tail of the pole piece; 100, first clip assembly; 110, first clip; 111, first upper clip; 112, first lower clip; 120, first clip seat; 130, second clip seat; 140, first seat body; 150, second slide rail; 160, first pushing member; 170, first driving arm; 171, first cam; 180, first connecting member; 190, third driving member; 200, cutting assembly; 210, first cutter; 211, first cutter seat; 220, second cutter; 221, second cutter seat; 230, fourth slide rail; 240, third seat body; 241, guide rod; 242, limit block; 250, fifth slide rail; 260, fourth seat body; 270, third driving arm; 271, third cam; 280, fourth driving arm; 281, fourth cam; 300, second clip assembly; 310, second clip; 311, second upper clip; 312, second lower clip; 321, third clip seat; 322, fourth clip seat; 330, roller; 331, first roller seat; 332, second roller seat; 340, second seat body; 350, third slide rail; 360, second pushing member; 370, second driving arm; 371, second cam; 380, second connecting member; 381, setscrew; 400, mounting plate; 410, first slide rail; 420, first opening; 430, second opening; 500, first driving member; 600, second driving member; 700, first cam plate; 710, first cam groove; 711, first groove wall; 712, second groove wall; 713, film chasing track; 714, mutation track; 715, clamping track; 800, second cam plate; 810, second cam groove; 900, third cam plate; 910, third cam groove; 911, first protrusion; 920, fourth cam groove; 921, second protrusion. Detailed implementation mode

[0028] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present utility model and be able to implement it, but the embodiments cited do not limit the present utility model.

[0029] Such as Figure 1As shown in the figure, the cutting and separating mechanism of the embodiment of the present utility model includes: a first clip assembly 100, a cutting assembly 200, and a second clip assembly 300. The first clip assembly 100, the cutting assembly 200, and the second clip assembly 300 are slidably mounted on a mounting plate 400 through the same first slide rail 410. The second clip assembly 300, the cutting assembly 200, and the first clip assembly 100 are arranged in sequence along the polar plate conveying direction. The first clip assembly 100 is connected to a first driving member 500. The first driving member 500 is preferably a motor and lead screw assembly, which is directly connected to the first clip assembly 100 and drives the first clip assembly 100 to reciprocate along the polar plate conveying direction. The first driving member 500 and the first clip assembly 100 are mounted on different surfaces of the mounting plate 400, and the spatial layout is more reasonable. The second clip assembly 300 is connected to the first clip assembly 100 through a first connecting member 180, and the second clip assembly 300 can move along with the movement of the first clip assembly 100. The second clip assembly 300 is also connected to a second driving member 600. The second driving member 600 is preferably a cylinder, one end of which is connected to the second driving member 600, and the other end is connected to the first connecting member 180. When the first clip assembly 100 is stationary, it can drive the second clip assembly 300 to approach or move away from the first clip assembly 100. The cutting assembly 200 is connected to the first clip assembly 100 and can move along with the movement of the first clip assembly 100. The first driving member 500 directly drives the first clip assembly 100 to fix in place after conveying the polar plate 10 in place. The position of the first clip assembly 100 is convenient for precise control, improving the conveying accuracy of the polar plate 10. After cutting the polar plate 10, a polar plate head 11 and a polar plate tail 12 are formed. The second driving member 600 drives the polar plate head 11 to be separated from the polar plate tail 12 by a certain interval. The interval between the separation of the second clip assembly 300 and the first clip assembly 100 is convenient for precise control, improving the tape connecting accuracy of the polar plate 10.

[0030] As Figure 2 shown, the first clip assembly 100 includes a pair of first clips 110 arranged oppositely, and the pair of first clips 110 can be driven to separate or approach each other.

[0031] In this embodiment, the separation or approach of the pair of first clips 110 is controlled by a cam and a cam groove, and one of the pair of first clips 110 is controlled to approach or move away from the other first clip 110. In other embodiments, a cylinder, an electric cylinder, etc. can also be used to drive the movement of the first clip 110, and the relative movement of the pair of first clips 110 can also be controlled.

[0032] Specifically, in this embodiment, the installation method of a pair of first clamping pieces 110 is as follows: The first clamping piece 110 is divided into a first upper clamping piece 111 and a first lower clamping piece 112, which are respectively installed on a first clamping piece seat 120 and a second clamping piece seat 130. The first clamping piece seat 120 is installed on a first seat body 140, and the second clamping piece seat 130 is slidably installed on the first seat body 140 through a second slide rail 150. The extending direction of the second slide rail 150 is set along the thickness direction of the pole piece 10. The first seat body 140 is provided with a first pushing member 160, and the first pushing member 160 is connected to the second clamping piece seat 130. The first pushing member 160 is preferably a spring cylinder, and its driving direction is set along the thickness direction of the pole piece 10. The first pushing member 160 always pushes the second clamping piece seat 130 towards the first clamping piece seat 120. The second clamping piece seat 130 is connected to a first driving arm 170, and the first driving arm 170 is connected to a first cam 171.

[0033] Referring again to Figure 1 As shown, the cutting and separating mechanism is provided with a first cam plate 700. The first cam plate 700 is installed on the mounting plate 400. A first cam groove 710 is provided on the first cam plate 700. The first cam 171 cooperates with the first cam groove 710 to drive the first lower clamping piece 112 to approach or move away from the first upper clamping piece 111.

[0034] As Figure 3 shown, the first cam groove 710 has a first groove wall 711 and a second groove wall 712 along the thickness direction of the pole piece 10. A chasing piece track 713, a mutation track 714, and a clamping track 715 are sequentially arranged along the pole piece conveying direction. The chasing piece track 713 is closer to the pole piece 10 in the thickness direction of the pole piece 10 than the clamping track 715. The mutation track 714 is arc-shaped and transitionally connects the chasing piece track 713 and the clamping track 715. As Figure 3 shown in (a), when the first cam 171 is at the chasing piece track 713, the first cam 171 drives the first lower clamping piece 112 to move away from the first upper clamping piece 111 under the restriction of the first groove wall 711, forming a gap for the pole piece 10 to pass through; as Figure 3 shown in (b), when the first cam 171 is at the mutation track 714, the first cam 171 drives the first lower clamping piece 112 to gradually approach the first upper clamping piece 111 under the restriction of the second groove wall 712 and the first pushing member 160, and the gap between the first lower clamping piece 112 and the first upper clamping piece 111 becomes smaller; as Figure 3 shown in (c), when the first cam 171 is at the clamping track 715, the first cam 171 drives the first lower clamping piece 112 to approach the first upper clamping piece 111 under the restriction of the second groove wall 712 and the first pushing member 160, and there is no gap between the first lower clamping piece 112 and the first upper clamping piece 111, and the two clamping pieces clamp the pole piece 10.

[0035] Referring again to Figure 1 、Figure 2 As shown, the mounting plate 400 is provided with a pair of first openings 420. The first seat body 140 extends through the first openings 420 to the other side of the mounting plate 400 and is connected to the driving end of the first driving member 500. The first connecting member 180 and the first driving member 500 are arranged on the same side of the mounting plate 400. Such an arrangement is beneficial to the spatial layout, saves the space occupied by the mounting plate 400 on one side of the first clamping piece assembly 100, and avoids interfering with the movements of the first clamping piece assembly 100, the cutting assembly 200, and the second clamping piece assembly 300.

[0036] Refer again to Figure 1 、 Figure 4 As shown, the second clamping piece assembly 300 includes a pair of second clamping pieces 310 arranged oppositely, and the pair of second clamping pieces 310 can be driven to separate or approach each other. The structure of the second clamping piece assembly 300 is similar to that of the first clamping piece assembly 100. The second clamping piece 310 is divided into a second upper clamping piece 311 and a second lower clamping piece 312, which are respectively installed on the third clamping piece seat 321 and the fourth clamping piece seat 322. The third clamping piece seat 321 is installed on the first roller seat 331, and the fourth clamping piece seat 322 is installed on the second roller seat 332. Rollers 330 are rotatably arranged on both the first roller seat 331 and the second roller seat 332. At least one roller 330 is set as a one-way roller to prevent the pole piece 10 from retreating after the cutting assembly 200 cuts off the pole piece 10. The first roller seat 331 is installed on the second seat body 340, and the second roller seat 332 is slidably installed on the second seat body 340 through a third slide rail 350. The extending direction of the third slide rail 350 is set along the thickness direction of the pole piece 10. The second seat body 340 is provided with a second pushing member 360, and the second pushing member 360 is connected to the second roller seat 332. The second pushing member 360 is preferably a spring cylinder, and its driving direction is set along the thickness direction of the pole piece 10. The second pushing member 360 always pushes the second roller seat 332 towards the first roller seat 331. The second roller seat 332 is connected to a second driving arm 370, and the second driving arm 370 is connected to a second cam 371.

[0037] The cutting and separating mechanism is provided with a second cam plate 800. The second cam plate 800 is installed on the mounting plate 400, and a second cam groove 810 is provided on the second cam plate 800. The second cam 371 cooperates with the second cam groove 810 to drive the second lower clamping piece 312 to approach or move away from the second upper clamping piece 311.

[0038] The structure of the second cam groove 810 is similar to that of the first cam groove 710. Under the restriction of the second cam groove 810, during the movement of the second cam 371 along the pole piece conveying direction, the second lower clamping piece 312 and the second upper clamping piece 311 can be driven to change from a separated state to a clamped state. The specific structure of the second cam groove 810 will not be elaborated here.

[0039] The second seat body 340 is slidably mounted on the mounting plate 400 through the first slide rail 410. A second connecting member 380 is provided on one side of the second seat body 340. The second connecting member 380 extends out of the mounting plate 400 through a second opening 430 provided on the mounting plate 400 and is connected to the first connecting member 180 located on the other side of the mounting plate 400. The second clip assembly 300 is connected to the first clip assembly 100 through the first connecting member 180 and the second connecting member 380 and can move along with the movement of the first clip assembly 100.

[0040] In this embodiment, the first connecting member 180 and the second connecting member 380 are separately provided. The second connecting member 380 is connected to the first connecting member 180 by screws, and the second connecting member 380 is tightened against the second seat body 340 by a setscrew 381. The distance between the second seat body 340 and the second connecting member 380 can be adjusted through the setscrew 381, and thus the initial distance between the second clip assembly 300 and the first clip assembly 100 can be adjusted, so as to adapt to different separation distances after the pole piece 10 is cut and different widths of adhesive tapes are attached. In other embodiments, the first connecting member 180 and the second connecting member 380 may also be integrally provided.

[0041] The second driving member 600 is mounted on the second seat body 340. The second driving member 600 is preferably a cylinder, and its driving end is connected to the second connecting member 380, and the driving direction is set along the pole piece conveying direction. In the initial state, the second driving member 600 is in the extended position, and the distance between the second clip assembly 300 and the first clip assembly 100 is the closest; then, the first driving member 500 drives the first clip assembly 100 and the second clip assembly 300 to move synchronously to the position; subsequently, the second driving member 600 is in the retracted position. Since the position of the first clip assembly 100 is fixed, the positions of the first connecting member 180 and the second connecting member 380 are fixed, and the second clip assembly 300 moves away from the first clip assembly 100 under the action of the second driving member 600, separating the head 11 of the cut pole piece from the tail 12 of the pole piece by a certain distance.

[0042] As Figure 5 shown, the cutting assembly 200 includes a first cutter 210 and a second cutter 220 which are oppositely arranged, and the first cutter 210 and the second cutter 220 can be driven to move relative to each other. With such a setting, the first pair of second clips 310 can simultaneously extend between the first cutter 210 and the second cutter 220, and the second upper clip 311 and the second lower clip 312 have the same length, shortening the size of the free end of the head 11 of the pole piece and improving the tape connecting accuracy.

[0043] The installation manners of the first cutter 210 and the second cutter 220 are as follows:

[0044] The first cutting knife 210 is installed on the first cutting knife seat 211, and the second cutting knife 220 is installed on the second cutting knife seat 221. The cutting edges of the two cutting knives are arranged opposite to each other. The second cutting knife seat 221 is slidably connected to the first cutting knife seat 211 through a fourth slide rail 230. To save space, the fourth slide rail 230 is selected as a crossed roller guide rail. The first cutting knife seat 211 is installed on a third seat body 240, and the third seat body 240 is slidably installed on a fourth seat body 260 through a pair of fifth slide rails 250. The third seat body 240 is connected to a third driving arm 270, and the third driving arm 270 is connected to a third cam 271. The second cutting knife seat 221 is connected to a fourth driving arm 280. A pair of guide rods 241 are arranged inside the third seat body 240. Limit blocks 242 are arranged at both ends of the pair of guide rods 241. The fourth driving arm 280 is connected to the limit blocks 242, and a fourth cam 281 is further arranged on one side of the limit blocks 242. The extending directions of the fourth slide rail 230, the fifth slide rail 250, and the guide rods 241 are all arranged along the thickness direction of the pole piece 10. The first cutting knife 210 is guided by a pair of fifth slide rails 250, and the second cutting knife 220 is guided by the fourth slide rail 230 and a pair of guide rods 241, making the relative movement of the first cutting knife 210 and the second cutting knife 220 more stable and avoiding jamming.

[0045] The fourth seat body 260 is slidably installed on the mounting plate 400 through a first slide rail 410. As Figure 1 shown, a third cam plate 900 is arranged on the mounting plate 400. A third cam groove 910 and a fourth cam groove 920 are arranged on the third cam plate 900. The third cam 271 is matched with the third cam groove 910, and the fourth cam 281 is matched with the fourth cam groove 920, driving the relative movement of the first cutting knife 210 and the second cutting knife 220.

[0046] The third cam groove 910 and the fourth cam groove 920 are similar in structure to the first cam groove 710 and the second cam groove 810, and both have a first groove wall 711 and a second groove wall 712, which can limit the movement of the cam through the two groove walls, improve the response speed of the first cutting knife 210 and the second cutting knife 220, is beneficial to improving the reliability of the chasing and cutting process, and helps to shorten the time between actions.

[0047] The third cam groove 910 and the fourth cam groove 920 also have certain differences from the first cam groove 710 and the second cam groove 810. As Figure 6 shown, the third cam groove 910 and the fourth cam groove 920 respectively have a first convex portion 911 and a second convex portion 921. The two convex portions are arranged opposite to each other and have the same axis of symmetry. When the third cam 271 and the fourth cam 281 synchronously move to the first convex portion 911 and the second convex portion 921, they can drive the first cutting knife 210 and the second cutting knife 220 to quickly cut the pole piece 10 and reset.

[0048] More preferably, the first convex portion 911 has a part of a flat movement trajectory, and the second convex portion 921 has a convex pole. The flat movement trajectory of the first convex portion 911 can drive the first cutter 210 to approach the pole piece 10 before the second cutter, and the convex pole of the second convex portion 921 can drive the second cutter 220 to instantaneously cut off and separate the pole piece 10 from the first cutter 210.

[0049] Refer again to Figure 1 、 Figure 2 、 Figure 5 As shown, the first base body 140 is further provided with a third driving member 190. The third driving member 190 is connected to the fourth base body 260 to drive the cutting assembly 200 to approach or move away from the first clamping assembly 100. The third driving member 190 is preferably a cylinder, and its driving direction is the same as the conveying direction of the pole piece 10. When the third driving member 190 is in the retracted position, the cutting assembly 200 approaches the first clamping assembly 100 and moves away from the second clamping assembly 300, and the cutting assembly 200 cuts off the pole piece; when the third driving member 190 is in the extended position, the cutting assembly 200 moves away from the first clamping assembly 100 and approaches the second clamping assembly 300, and the cutting assembly 200 is in the avoidance position, and a pair of second clamping pieces 310 can extend from the cutting assembly 200, facilitating gluing.

[0050] The first driving arm 170, the second driving arm 370, the third driving arm 270, and the fourth driving arm 280 are all as close as possible to the mounting plate 400 to avoid occupying the working space of the subsequent gluing mechanism.

[0051] The working process of the cutting and separating mechanism in this embodiment is as follows:

[0052] Initial state: The second driving member 600 is in the extended position, and the distance between the second clamping assembly 300 and the first clamping assembly 100 is the closest; the third driving member 190 is in the retracted position, and the distance between the cutting assembly 200 and the first clamping assembly 100 is the closest.

[0053] Chasing stage: The first driving member 500 drives the first clamping assembly 100, the cutting assembly 200, and the second clamping assembly 300 to move synchronously to the same conveying speed as the pole piece 10 and maintain the same speed. In this stage, the first cam 171 and the second cam 371 respectively move along the chasing trajectories 713 in the first cam groove 710 and the second cam groove 810. A pair of first clamping pieces 110 move away from each other, and a pair of second clamping pieces 310 move away from each other to avoid affecting the conveying of the pole piece 10 by the first clamping piece 110 and the second clamping piece 310.

[0054] Mutation stage: When the first driving member 500 drives the first clip assembly 100, the cutting assembly 200, and the second clip assembly 300 to maintain the same speed as the pole piece 10, the first cam 171 and the second cam 371 respectively move along the mutation trajectories 714 of the first cam groove 710 and the second cam groove 810, driving the first lower clip 112 closer to the first upper clip 111 and driving the second lower clip 312 closer to the second upper clip 311.

[0055] Clamping stage: The first cam 171 and the second cam 371 respectively move along the clamping trajectories 715 of the first cam groove 710 and the second cam groove 810, and a pair of first clips 110 and a pair of second clips 310 respectively clamp the pole piece 10. Meanwhile, the third cam 271 and the fourth cam 281 of the cutting assembly 200 respectively move along the first protrusion 911 and the second protrusion 921 of the third cam groove 910 and the fourth cam groove 920, driving the first cutter 210 and the second cutter 220 to cut and reset the pole piece 10. The pole piece 10 forms a pole piece head 11 and a pole piece tail 12, which are respectively clamped by the second clip assembly 300 and the first clip assembly 100.

[0056] Deceleration stage: The pole piece 10 moves at a decelerated speed, and the first driving member 500 drives the first clip assembly 100, the cutting assembly 200, and the second clip assembly 300 to synchronously decelerate until the cutting part of the pole piece 10 moves to the glue application position.

[0057] Separation stage: The second driving member 600 drives the second clip assembly 300 away from the first clip assembly 100, separating the pole piece head 11 and the pole piece tail 12 by a certain distance.

[0058] Avoidance of the cutting assembly 200: The third driving member 190 drives the cutting assembly 200 away from the first clip assembly 100 and closer to the second clip assembly 300 to avoid the cutting part of the pole piece 10.

[0059] Glue application stage: An additional glue application mechanism connects the pole piece head 11 and the pole piece tail 12 together with adhesive tape.

[0060] After the glue application is completed, the cutting and separation mechanism resets, and the pole piece 10 continues to be conveyed.

[0061] The above embodiments are only preferred embodiments given to fully illustrate the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or transformations made by those skilled in the art on the basis of the present invention are all within the protection scope of the present invention. The protection scope of the present invention is subject to the claims.

Claims

1. A cutting and separating mechanism is used to cut a continuously conveyed pole piece to form a pole piece head and a pole piece tail, and separate the pole piece head and the pole piece tail by a certain distance. It is characterized in that, Comprising: A first clamping piece assembly for clamping or releasing the pole piece; A first driving member connected to the first clamping piece assembly to drive the first clamping piece assembly to reciprocate along the pole piece conveying direction; A second clamping piece assembly for clamping or releasing the pole piece, the second clamping piece assembly is connected to the first clamping piece assembly through a first connecting member and moves along with the movement of the first clamping piece assembly; A cutting assembly connected to the first clamping piece assembly and arranged between the first clamping piece assembly and the second clamping piece assembly for cutting the pole piece; A second driving member, one end of which is connected to the second clamping piece assembly and the other end is connected to the first connecting member, to drive the second clamping piece assembly to approach or move away from the first clamping piece assembly.

2. The cutting and separating mechanism according to claim 1, wherein, The first clamping piece assembly, the cutting assembly, and the second clamping piece assembly are all slidably mounted on a mounting plate through the same first slide rail.

3. The cutting and separating mechanism according to claim 1, wherein, The first clamping piece assembly includes a pair of first clamping pieces arranged oppositely, and the pair of first clamping pieces can be driven to separate or approach each other.

4. The cutting and separating mechanism according to claim 3, wherein, One of the pair of first clamping pieces is connected to a first driving arm, the first driving arm is connected to a first cam, and the cutting and separating mechanism further includes a first cam plate with a first cam groove provided thereon, and the first cam cooperates with the first cam groove to drive the first clamping piece to approach or move away from the other first clamping piece.

5. The cutting and separating mechanism according to claim 1, wherein The second clamping piece assembly includes a pair of second clamping pieces arranged oppositely, and the pair of second clamping pieces can be driven to separate or approach each other.

6. The cutting and separating mechanism according to claim 5, wherein, One of the pair of second clamping pieces is connected to a second driving arm, the second driving arm is connected to a second cam, and the cutting and separating mechanism further includes a second cam plate with a second cam groove provided thereon, and the second cam cooperates with the second cam groove to drive the second clamping piece to approach or move away from the other second clamping piece.

7. The cutting and separating mechanism according to claim 1, wherein The cutting assembly includes a first cutter and a second cutter arranged oppositely, and the first cutter and the second cutter can be driven to move relative to each other.

8. The cutting and separating mechanism according to claim 7, wherein, The first cutter is connected to a third driving arm, the third driving arm is connected to a third cam, the second cutter is connected to a fourth driving arm, the fourth driving arm is connected to a fourth cam, and the cutting and separating mechanism further includes a third cam plate with a third cam groove and a fourth cam groove provided thereon, the third cam cooperates with the third cam groove, and the fourth cam cooperates with the fourth cam groove to drive the first cutter and the second cutter to move relative to each other.

9. The cutting and separating mechanism according to claim 8, wherein, Both the third cam groove and the fourth cam groove respectively have a first convex portion and a second convex portion, and the first convex portion and the second convex portion are arranged oppositely and have the same axis of symmetry.

10. The cutting and separating mechanism according to claim 1, characterized in that, The first clamping piece assembly further includes a third driving member connected to the cutting assembly to drive the cutting assembly to approach or move away from the first clamping piece assembly.

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