A pole piece cutting and gluing device

Abstract

The utility model relates to a device for cutting and gluing pole pieces, comprising a first traction roller group, a second traction roller group, a rolling and cutting mechanism, a glue preparation mechanism and a rolling and pasting mechanism. The pole piece passes through the first traction roller group, the rolling and cutting mechanism, the rolling and pasting mechanism and the second traction roller group in sequence. The glue preparation mechanism is installed on one side of the rolling and pasting mechanism. The first traction roller group and the second traction roller group drive the pole piece to transmit. The rolling and cutting mechanism cuts the pole piece. The rolling and pasting mechanism comprises a rolling and pasting adsorption roller, a swing arm, an adsorption drive structure and a swing arm drive structure. The rolling and pasting adsorption roller is installed on the swing arm. The glue preparation mechanism prepares glue on the rolling and pasting adsorption roller. The adsorption drive structure drives the rolling and pasting adsorption roller to rotate. The swing arm drive structure drives the swing arm to rotate. The above-mentioned pole piece cutting and gluing device adopts the rolling and cutting mechanism and the rolling and pasting mechanism. The pole piece can be cut and glued when the pole piece is transmitted at a normal speed, which greatly improves the production efficiency of the equipment, can match pole pieces of different widths, reduce the overall space of the equipment, and reduce the equipment debugging cost.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery production, in particular to a pole piece cutting and gluing device. Background Art

[0002] With the continuous development of economy and the continuous progress of society, a variety of material consumer goods are provided for people's production and life, and lithium-ion batteries are one of them. As we all know, lithium-ion batteries are widely used in electronic products, electric vehicles or new energy vehicles, and are becoming more and more popular.

[0003] Among them, in the production and manufacturing process of lithium-ion batteries, pole piece gluing is a very critical process. Pole piece gluing is to stick adhesive tape on the positive and negative pole pieces of the battery to protect the pole pieces.

[0004] However, when lithium batteries are produced using the winding process, it is an important process to cut the pole pieces outside the winding area and then use compliant adhesive tape to connect them. Most of the equipment on the market stops the pole piece transmission or reduces the speed of the pole piece material belt before cutting and gluing the pole piece, which affects the production efficiency of the equipment. Utility Model Content

[0005] The main purpose of the utility model is to provide a pole piece cutting and gluing device to solve the above technical problems. The pole piece cutting and gluing can be performed when the pole piece is conveyed at a normal speed, thereby greatly improving the production efficiency of the equipment.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A device for cutting and gluing a pole piece comprises a first traction roller group, a second traction roller group, a rolling and cutting mechanism, a glue preparation mechanism and a rolling and pasting mechanism. The pole piece passes through the first traction roller group, the rolling and cutting mechanism, the rolling and pasting mechanism and the second traction roller group in sequence. The glue preparation mechanism is installed on one side of the rolling and pasting mechanism. The first traction roller group and the second traction roller group drive the pole piece to transmit. The rolling and cutting mechanism cuts the pole piece. The rolling and pasting mechanism comprises a rolling and pasting adsorption roller, a swing arm, an adsorption driving structure and a swing arm driving structure. The rolling and pasting adsorption roller is installed on the swing arm. The glue preparation mechanism prepares glue on the rolling and pasting adsorption roller. The adsorption driving structure drives the rolling and pasting adsorption roller to rotate. The swing arm driving structure drives the swing arm to rotate.

[0008] As a preferred technical solution, an array of adsorption holes is arranged on the rolling adsorption roller.

[0009] As a preferred technical solution, the rolling mechanism includes a rolling support and two rolling cutter units. The rolling cutter units are installed on the rolling support, and the pole piece is transmitted between the two rolling cutter units.

[0010] As a preferred technical solution, the rolling cutter unit includes a driving motor, a coupling, a roller and a rolling cutter, the rolling cutter is fixed on the roller, the driving motor is connected to the rolling cutter through the coupling, and the driving motor drives the roller to rotate.

[0011] As a preferred technical solution, the rolling cutter is a triangular raised straight blade, and the cutting edge of the rolling cutter is parallel to the axis of the roller.

[0012] As a preferred technical solution, it further includes a tensioning floating roller mechanism, and the tensioning floating roller mechanism is installed between the rolling mechanism and the second traction roller group.

[0013] As a preferred technical solution, the tensioning floating roller mechanism includes a fixed roller and a floating roller, the two fixed rollers are arranged in a gap, the floating roller is arranged between the two fixed rollers, and the pole piece is transmitted between the floating roller and the fixed roller.

[0014] The beneficial effects of the utility model are as follows: the above-mentioned electrode cutting and gluing device adopts a rolling cutting mechanism and a rolling gluing mechanism, which can perform electrode cutting and gluing when the electrode is transported at a normal speed, greatly improving the production efficiency of the equipment, being able to match electrodes of different widths, reducing the overall space of the equipment, and reducing the equipment debugging cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the pole piece cutting and gluing device involved in the utility model;

[0016] Figure 2 It is a structural schematic diagram of the rolling cutting mechanism involved in the utility model;

[0017] Figure 3 It is a front view of the rolling cutting mechanism involved in the utility model;

[0018] Figure 4 Before cutting Figure 3 Cross-sectional view of the middle DD;

[0019] Figure 5 for Figure 4 A local enlarged view of c1 in the middle;

[0020] Figure 6 For cutting Figure 3 Cross-sectional view of the middle DD;

[0021] Figure 7 for Figure 6 A local enlarged view of c2 in the middle;

[0022] Figure 8 After cutting Figure 3 Cross-sectional view of the middle DD;

[0023] Fig. 9 for Figure 8 A local enlarged view of c3 in the middle;

[0024] Fig.10 It is a working schematic diagram of the pole piece cutting and gluing device before cutting involved in the utility model;

[0025] Fig.11 It is a schematic diagram of the working state of the electrode cutting and gluing device involved in the utility model during cutting;

[0026] Fig.12 It is a working schematic diagram of the electrode cutting and gluing device involved in the utility model after cutting;

[0027] Fig.13 The utility model is a schematic diagram of the working state of the pole piece cutting and gluing device during gluing. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0029] like Figure 1 As shown, a pole piece cutting and gluing device comprises a first traction roller group 1, a rolling cutting mechanism 2, a first glue preparation mechanism 3, a first rolling and pasting mechanism 4, a second glue preparation mechanism 5, a second rolling and pasting mechanism 6, a tensioning floating roller mechanism 7 and a second traction roller group 8. The first rolling and pasting mechanism 4 and the second rolling and pasting mechanism 6 are arranged opposite to each other. The pole piece a passes through the first traction roller group 1, the rolling cutting mechanism 2, the first rolling and pasting mechanism 4, the second rolling and pasting mechanism 6, the tensioning floating roller mechanism 7 and the second traction roller group 8 in sequence. The first glue preparation mechanism 3 is installed on the first rolling and pasting mechanism On one side of the structure 4, the first glue preparation mechanism 3 prepares glue for the first rolling and pasting mechanism 4, the second glue preparation mechanism 5 is installed on one side of the second rolling and pasting mechanism 6, the second glue preparation mechanism 5 prepares glue for the second rolling and pasting mechanism 6, the first traction roller group 1 and the second traction roller group 8 drive the pole piece transmission, the rolling cutting mechanism 2 cuts the pole piece a, the first rolling and pasting mechanism 4 and the second rolling and pasting mechanism 6 respectively apply glue paper b to the cut end of the pole piece a, and the tensioning floating roller mechanism 7 is installed between the first rolling and pasting mechanism 4 and the second traction roller group 8, and is used to adjust the tension of the pole piece after cutting.

[0030] Specifically, the structure of the first glue preparation mechanism 3 is the same as that of the second glue preparation mechanism 5, the structure of the first rolling mechanism 4 is the same as that of the second rolling mechanism 6, the first rolling mechanism 4 includes a first rolling mounting seat 41, a first rolling adsorption roller 43, a first swing arm 42, a first adsorption driving structure (not shown in the figure) and a first swing arm driving structure (not shown in the figure), the first swing arm 42 is rotatably mounted on the first rolling mounting seat 41, the first rolling adsorption roller 43 is mounted on the first swing arm 42, the first glue preparation mechanism 3 prepares glue on the first rolling adsorption roller 43, the first adsorption driving structure drives the first rolling adsorption roller 43 to rotate, the first swing arm driving structure drives the first swing arm 42 to rotate, and the first rolling adsorption roller 43 is arrayed with adsorption holes for adsorbing the adhesive paper b. The second rolling mechanism 6 includes a second rolling mounting seat 61, a second rolling adsorption roller 63, a second swing arm 62, a second adsorption driving structure (not shown in the figure) and a second swing arm driving structure (not shown in the figure). The second swing arm 62 is rotatably mounted on the second rolling mounting seat 61. The second rolling adsorption roller 63 is mounted on the second swing arm 62. The second glue preparation mechanism 3 prepares glue on the second rolling adsorption roller 63. The second adsorption driving structure drives the second rolling adsorption roller 63 to rotate. The second swing arm driving structure drives the second swing arm 62 to rotate. The second rolling adsorption roller 63 is arrayed with adsorption holes for adsorbing the adhesive paper b.

[0031] Please combine Figure 2 and Figure 3 As shown, the rolling mechanism 2 includes a rolling support 21, a first rolling cutter unit 22 and a second rolling cutter unit 23. The first rolling cutter unit 22 and the second rolling cutter unit 23 are installed on the rolling support 21, and the pole piece is transmitted between the first rolling cutter unit 22 and the second rolling cutter unit 23.

[0032] The structure of the first roller unit 22 is the same as that of the second roller unit 23. The first roller unit 22 includes a first drive motor 221, a first coupling 222, a first roller 223 and a first roller cutter 224. The first roller cutter 224 is fixed on the first roller 223. The first drive motor 221 is connected to the first roller cutter 223 through the first coupling 222. The first drive motor 221 drives the first roller 223 to rotate. The rotation speed of the roller surface of the first roller 223 is the same as the transmission speed of the pole piece a. The first roller cutter 224 is a triangular raised straight blade, and the cutting edge of the first roller cutter 224 is parallel to the axis of the first roller 223. The second rolling cutter unit 23 includes a second drive motor 231, a second coupling 232, a second roller 233 and a second rolling cutter 234. The second rolling cutter 234 is fixed on the second roller 233. The second drive motor 231 is connected to the second rolling cutter 233 through the second coupling 232. The second drive motor 231 drives the second roller 233 to rotate. The rotation speed of the roller surface of the second roller 233 is the same as the transmission speed of the pole piece a. The second rolling cutter 234 is a triangular raised straight blade, and the cutting edge of the second rolling cutter 234 is parallel to the axis of the second roller 233. The plane formed by the axis of the first roller 223 and the cutting edge of the first rolling cutter 224 is parallel to the plane formed by the axis of the second roller 233 and the cutting edge of the second rolling cutter 234. When the first rolling cutter unit 22 and the second rolling cutter unit 23 need to cut the pole piece, as shown in FIG. Figure 4 and 5 As shown, the first driving motor 221 drives the first roller 223 to rotate counterclockwise, and the second driving motor 231 drives the second roller 233 to rotate clockwise, so that the first rolling cutter 224 and the second rolling cutter 234 are close to each other, as shown in FIG. Figure 6 and Figure 7 As shown, the first rolling cutter 224 moves to the bottom, and the second rolling cutter 234 moves to the top. At this time, the first rolling cutter 224 and the second rolling cutter 234 mesh and cut the pole piece, as shown in FIG. Figure 8 and Fig. 9 As shown, the first driving motor 221 drives the first roller 223 to rotate counterclockwise, and the second driving motor 231 drives the second roller 233 to rotate clockwise, so that the first rolling cutter 224 and the second rolling cutter 234 move away from each other.

[0033] The tensioning floating roller mechanism 7 includes a fixed roller 72 and a floating roller 71. The two fixed rollers 72 are arranged with a gap, and the floating roller 71 is arranged between the two fixed rollers 72. The pole piece a is transmitted between the floating roller 71 and the fixed roller 72. The tension of the pole piece a is adjusted through the mobility of the floating roller 72, so that the tension of the pole piece a is kept constant during the transmission process.

[0034] The above-mentioned electrode cutting and gluing device, such as Fig.10As shown, before cutting, the first traction roller group 1 and the second traction roller group 8 jointly drive the pole piece transmission, the first drive motor 221 drives the first roller 223 to rotate counterclockwise, and the second drive motor 231 drives the second roller 233 to rotate clockwise, so that the first rolling cutter 224 and the second rolling cutter 234 are close to each other, the first glue preparation mechanism 3 prepares glue for the first rolling adsorption roller 43, and the adsorption hole of the first rolling adsorption roller 43 adsorbs the adhesive tape b, and the second glue preparation mechanism 5 prepares glue for the second rolling adsorption roller 63, and the adsorption hole of the second rolling adsorption roller 43 adsorbs the adhesive tape b, as shown in FIG. Fig.11 As shown, during cutting, the first rolling cutter 224 moves to the bottom and the second rolling cutter 234 moves to the top. At this time, the first rolling cutter 224 and the second rolling cutter 234 mesh and cut the pole piece, as shown in FIG. Fig.12 As shown, after cutting, the first traction roller group 1 and the second traction roller group 8 are differentially driven, that is, the first traction roller group 1 is slightly decelerated and then driven at the same speed as the second traction roller group 8, so that the cutting end of the pole piece is pulled away from the process setting distance, the first adsorption drive structure drives the first rolling adsorption roller 43 to rotate until the roller surface speed of the first rolling adsorption roller 43 is the same as the transmission speed of the pole piece a, and the second adsorption drive structure drives the second rolling adsorption roller 63 to rotate until the roller surface speed of the second rolling adsorption roller 63 is the same as the transmission speed of the pole piece a, as shown in FIG. Fig.13 As shown, during gluing, the first swing arm driving structure drives the first swing arm 42 to rotate, and the second swing arm driving structure drives the second swing arm 62 to rotate, so that the first rolling adsorption roller 43 and the second rolling adsorption roller 63 are in contact with the pole piece a and are synchronously driven with the pole piece a, so that the adhesive paper b is attached to the gap at the cut end of the pole piece to complete one gluing operation.

[0035] The above-described embodiments are only preferred examples of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made based on the structures, features and principles described in the patent application scope of the present invention should be included in the scope of the patent application of the present invention.

Claims

1. A pole piece cutting and gluing device, characterized in that: It includes a first traction roller group, a second traction roller group, a rolling and cutting mechanism, a glue preparation mechanism and a rolling and pasting mechanism. The pole piece passes through the first traction roller group, the rolling and cutting mechanism, the rolling and pasting mechanism and the second traction roller group in sequence. The glue preparation mechanism is installed on one side of the rolling and pasting mechanism. The first traction roller group and the second traction roller group drive the pole piece to transmit. The rolling and cutting mechanism cuts the pole piece. The rolling and pasting mechanism includes a rolling and pasting adsorption roller, a swing arm, an adsorption driving structure and a swing arm driving structure. The rolling and pasting adsorption roller is installed on the swing arm. The glue preparation mechanism prepares glue on the rolling and pasting adsorption roller. The adsorption driving structure drives the rolling and pasting adsorption roller to rotate, and the swing arm driving structure drives the swing arm to rotate.

2. The electrode cutting and gluing device according to claim 1, characterized in that: The rolling adsorption roller is provided with adsorption holes in an array.

3. The electrode cutting and gluing device according to claim 2, characterized in that: The rolling mechanism comprises a rolling support and two rolling cutter units. The rolling cutter units are mounted on the rolling support, and the pole piece is transmitted between the two rolling cutter units.

4. The pole piece cutting and gluing device according to claim 3, characterized in that: The rolling cutter unit includes a driving motor, a coupling, a roller and a rolling cutter. The rolling cutter is fixed on the roller. The driving motor is connected to the rolling cutter through the coupling. The driving motor drives the roller to rotate.

5. The pole piece cutting and gluing device according to claim 4, characterized in that: The rolling cutter is a triangular raised straight blade, and the cutting edge of the rolling cutter is parallel to the axis of the roller.

6. The pole piece cutting and gluing device according to claim 2, characterized in that: It further comprises a tensioning floating roller mechanism, and the tensioning floating roller mechanism is installed between the rolling mechanism and the second traction roller group.

7. The pole piece cutting and gluing device according to claim 6, characterized in that: The tensioning floating roller mechanism comprises a fixed roller and a floating roller, the two fixed rollers are arranged at a gap, the floating roller is arranged between the two fixed rollers, and the pole piece is transmitted between the floating roller and the fixed roller.

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