Automatic roll changing mechanism for pole piece protection glue of winding machine

Abstract

The invention relates to an automatic roll changing mechanism for pole piece protection glue of a winding machine. The automatic roll changing mechanism comprises a first glue film unwinding assembly and a second glue film unwinding assembly, the horizontal glue pulling assembly comprises a first sliding rail horizontally arranged on the base plate and a first glue clamping and feeding assembly arranged on the first sliding rail in a sliding mode, and a first guide roller shaft assembly is arranged at the input end of the first glue clamping and feeding assembly; the inclined glue pulling assembly comprises a second sliding rail and a second glue clamping and feeding assembly, and a second guide roller shaft assembly is arranged at the input end of the second glue clamping and feeding assembly; and the two belt connecting pressing wheel assemblies can be used for mutually pressing and jointing the glue film at the output end of the first glue clamping and feeding assembly and the glue film at the output end of the second glue clamping and feeding assembly. The invention belongs to the technical field of lithium ion battery production equipment, and the equipment utilization rate and the overall productivity are greatly improved through a'one-standby one-use 'double-station design and a full-automatic roll changing process.

Description

Technical Field

[0001] This application relates to the field of lithium-ion battery production equipment technology, and in particular to an automatic roll-changing mechanism for electrode protective adhesive in a winding machine. Background Technology

[0002] In the production process of lithium-ion batteries, cell winding is one of the key steps. Before the electrodes are wound into cells, a protective film (hereinafter referred to as "protective adhesive") is usually applied to specific locations on the electrodes (such as the tab area) to prevent burrs from puncturing the separator and to ensure the safety and reliability of the cell.

[0003] Currently, most adhesive application mechanisms used in the industry are single-structure systems, meaning they have only one adhesive feeding and application station. When a roll of protective adhesive is used up, the machine must be stopped, and operators must manually replace it with a new roll. This working mode has significant drawbacks: First, frequent downtime for material changes severely disrupts the production process, leading to reduced equipment utilization and hindering capacity increases; second, during each material change, a section of unusable adhesive is inevitably generated, resulting in material waste and increased production costs.

[0004] As lithium battery production moves towards higher efficiency, lower cost, and automation, the single-station adhesive application mechanism that requires frequent shutdowns for material changes can no longer meet the needs of modern production. Therefore, it is imperative to develop a device that can automatically switch film rolls without stopping the machine. Summary of the Invention

[0005] Therefore, it is necessary to provide an automatic roll changing mechanism for the protective adhesive of the electrode sheet in a winding machine, and the specific technical solution is as follows.

[0006] An automatic roll-changing mechanism for electrode protective adhesive in a winding machine includes: The first film unwinding assembly and the second film unwinding assembly are arranged vertically on the substrate. A horizontal adhesive stretching assembly includes a first slide rail arranged horizontally on a substrate and a first adhesive clamping and feeding assembly slidably disposed on the first slide rail. The input end of the first adhesive clamping and feeding assembly is provided with a first guide roller assembly corresponding to the first adhesive film unwinding assembly. An inclined adhesive pulling assembly includes a second slide rail arranged at an incline below a first slide rail and a second adhesive clamping and feeding assembly slidably disposed on the second slide rail. The input end of the second adhesive clamping and feeding assembly is provided with a second guide roller assembly corresponding to the second adhesive film unwinding assembly. Two belt-connecting pressure roller assemblies are provided, which can press and join the adhesive film at the output end of the first adhesive feeding assembly and the adhesive film at the output end of the second adhesive feeding assembly together. The two belt-connecting pressure roller assemblies are equipped with lifting cutter assemblies.

[0007] Furthermore, the first film unwinding assembly includes a first unwinding drum and a first film tensioning roller assembly. The first film tensioning roller assembly includes a plurality of first reversing rollers and a first tensioning roller disposed between two adjacent first reversing rollers. The substrate is provided with a first lifting cylinder for driving the first tensioning roller to move up and down. The first slide rail of the horizontal adhesive stretching assembly is disposed diagonally below the plurality of first reversing rollers.

[0008] Furthermore, the first film tensioning roller assembly also includes a first lifting guide rail and a first lifting slide seat disposed on the first lifting guide rail. The first lifting slide seat is provided with a first counterweight seat, and two first tensioning rollers are provided on both sides of the first counterweight seat. The push-pull rod of the first lifting cylinder is connected to the first counterweight seat.

[0009] Furthermore, the second film unwinding assembly includes a second unwinding drum and a second film tensioning roller assembly. The second film tensioning roller assembly includes a plurality of second reversing rollers and a second tensioning roller disposed between two of the second reversing rollers. The substrate is provided with a second lifting cylinder for driving the second tensioning roller to move up and down. The second slide rail of the inclined adhesive pulling assembly extends obliquely from below the second reversing roller to the front end of the first slide rail.

[0010] Furthermore, the second film tensioning roller assembly also includes a second lifting guide rail and a second lifting slide seat disposed on the second lifting guide rail. The second lifting slide seat is provided with a second counterweight seat, and two second tensioning roller shafts are provided on both sides of the second counterweight seat. The push-pull rod of the second lifting cylinder is connected to the second counterweight seat.

[0011] Furthermore, the first adhesive feeding assembly includes a first slide table disposed on the first slide rail and a first clamp disposed on the first slide table. A first clearance groove is provided on the substrate above the first slide rail, and a first adhesive feeding cylinder for driving the first slide table to slide is arranged horizontally on the back side of the substrate.

[0012] Furthermore, the first clamp includes a first lower clamping plate, a first upper clamping plate, and a first clamping drive mechanism for driving the first lower clamping plate and the first upper clamping plate to move relative to each other; the first guide roller assembly includes two first guide rollers provided at the rear end of the first slide.

[0013] Furthermore, the second adhesive feeding assembly includes a second slide table disposed on the second slide rail and a second clamp disposed on the second slide table. A second clearance groove is provided on the substrate above the second slide rail, and a second adhesive feeding cylinder for driving the second slide table to slide is arranged horizontally on the back side of the substrate.

[0014] Furthermore, the second clamp includes a second lower clamping plate, a second upper clamping plate, and a second clamping drive mechanism for driving the second lower clamping plate and the second upper clamping plate to move relative to each other; the second guide roller assembly includes two second guide rollers provided at the rear end of the second slide.

[0015] Furthermore, the two belt-connecting pressure roller assemblies are arranged vertically opposite each other, with the two belt-connecting pressure roller assemblies respectively located above the first slide rail and below the second slide rail; each belt-connecting pressure roller assembly includes a support, a vertically arranged clamping cylinder is provided on the front side of the support, and a rolling roller is provided at the end of the push rod of the clamping cylinder; the lifting cutter assembly includes a cutting cylinder vertically arranged on the rear side of the support and a cutter provided at the end of the push rod of the cutting cylinder.

[0016] Compared with existing technologies, the present invention has the following advantages: (1) The automatic roll changing mechanism for electrode protective adhesive of the winding machine of the present invention, through the dual-station design of "one for backup and one for use" and the fully automatic roll changing process, completely eliminates the downtime of material changing in the production process, enabling the winding machine to achieve uninterrupted continuous operation, greatly improving the equipment utilization rate and overall production capacity. (2) The automatic roll changing mechanism for the electrode protective adhesive of the winding machine of the present invention has an automated and precise tape connection and cutting mechanism, which minimizes the waste tape and core residue generated each time the roll is changed, reduces the consumption of protective adhesive tape, and thus saves production costs. (3) The automatic roll changing mechanism for electrode protective adhesive of the winding machine of the present invention is driven by cylinder and controlled by program throughout the roll changing process. No manual intervention is required, which reduces the labor intensity of operators and improves the automation level and stability of the production line. (4) The automatic roll changing mechanism for the protective adhesive of the winding machine of the present invention adopts a spatial layout that combines horizontal and inclined adhesive pulling components, which is compact and saves equipment space; the modular design (such as independent tensioning components and adhesive pulling components) makes the mechanism stable in operation and easy to maintain.

[0017] (5) The automatic roll changing mechanism for the electrode protective adhesive of the winding machine of the present invention has a precise tension control system that ensures that the tension of the tape is always stable during the unwinding and application process, effectively avoiding problems such as tape wrinkles, stretching deformation or poor adhesion, and ensuring the manufacturing quality of the battery cell. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural view of the automatic roll changing mechanism for electrode protective adhesive in the winding machine according to the present invention; Figure 2 This is a front view of the structure of the automatic roll changing mechanism for electrode protective adhesive of the winding machine in its initial working state according to the present invention; Figure 3 This is a structural front view of the automatic roll changing mechanism for electrode protective adhesive of the winding machine according to the present invention in the roll changing state; Figure 4 This is a front view of the structure of the automatic rewinding mechanism for electrode protective adhesive of the winding machine of the present invention in the second working state after rewinding; Figure 5 This is a rear view of the automatic roll changing mechanism for electrode protective adhesive in the winding machine according to the present invention; Figure 6 This is an enlarged schematic diagram of the structure of the first film unwinding assembly and the second film unwinding assembly in this invention; Figure 7 This is an enlarged schematic diagram of the horizontal and inclined adhesive-pulling components in this invention.

[0020] Explanation of reference numerals in the attached figures: 1. First film unwinding assembly; 101. First unwinding drum; 102. First film tensioning roller assembly; 103. First reversing roller; 104. First tensioning roller; 105. First lifting cylinder; 106. First lifting guide rail; 107. First lifting slide; 108. First counterweight. 2. Second film unwinding assembly; 201. Second unwinding drum; 202. Second film tensioning roller assembly; 203. Second reversing roller; 204. Second tensioning roller; 205. Second lifting cylinder; 206. Second lifting guide rail; 207. Second lifting slide; 208. Second counterweight seat; 3. Horizontal glue-pulling assembly; 301. First slide rail; 302. First glue-clamping and feeding assembly; 303. First guide roller assembly; 304. First slide table; 305. First glue-feeding cylinder; 306. First lower clamping plate; 307. First clamping drive mechanism; 308. First upper clamping plate; 309. First guide roller; 4. Inclined glue-pulling assembly; 401. Second slide rail; 402. Second glue-clamping and feeding assembly; 403. Second guide roller assembly; 404. Second slide table; 405. Second glue-feeding cylinder; 406. Second lower clamping plate; 407. Second clamping drive mechanism; 408. Second upper clamping plate; 409. Second guide roller; 5. Attached pressure roller assembly; 501. Support; 502. Pressing cylinder; 503. Roller roller; 6. Lifting cutter assembly; 601. Cutting cylinder; 602. Cutter; 7. Substrate; 8. Adhesive film; 9. First clearance channel; 10. Second clearance channel. Detailed Implementation

[0021] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0022] The embodiments of the present invention will now be described.

[0023] Reference Figures 1-7 As shown, this embodiment provides an automatic roll-changing mechanism for electrode protective adhesive in a winding machine, including: a first adhesive film unwinding assembly 1 and a second adhesive film unwinding assembly 2, both arranged vertically on a substrate 7; a horizontal adhesive pulling assembly 3, which includes a first slide rail 301 horizontally arranged on the substrate 7 and a first adhesive clamping and feeding assembly 302 slidably disposed on the first slide rail 301, the input end of the first adhesive clamping and feeding assembly 302 being provided with a first guide roller assembly 303 corresponding to the first adhesive film unwinding assembly 1; and an inclined adhesive pulling assembly 4, the inclined adhesive pulling assembly... Component 4 includes a second slide rail 401 arranged at an angle below the first slide rail 301 and a second adhesive feeding assembly 402 slidably disposed on the second slide rail 401. The input end of the second adhesive feeding assembly 402 is provided with a second guide roller assembly 403 corresponding to the second adhesive film unwinding assembly 2. Two belt-connecting pressure roller assemblies 5 are provided, which can press the adhesive film 8 at the output end of the first adhesive feeding assembly 302 and the adhesive film 8 at the output end of the second adhesive feeding assembly 402 together and then join them. The two belt-connecting pressure roller assemblies 5 are provided with lifting cutter assemblies 6.

[0024] The automatic roll-changing mechanism for electrode protective adhesive of the winding machine of the present invention has a horizontal adhesive pulling assembly 3 and an inclined adhesive pulling assembly 4 arranged in a staggered manner in space, which respectively serve the first adhesive film unwinding assembly 1 and the second adhesive film unwinding assembly 2 arranged vertically, and the bonding and cutting of the adhesive film 8 is completed by the tape-connecting pressure roller assembly 5 and the lifting cutter assembly 6 in cooperation.

[0025] During normal operation, the horizontal adhesive pulling assembly 3 pulls the adhesive film 8 from the first adhesive film unwinding assembly 1 forward, conveying the adhesive film 8 to the electrode bonding component in front. When the adhesive film 8 is almost used up, the horizontal adhesive pulling assembly 3 moves to the right, as... Figure 3As shown, the pressure roller assembly 5 pushes the adhesive film 8 at the output end of the inclined adhesive stretching assembly 4 upwards to adhere and press it against the adhesive film 8 at the output end of the horizontal adhesive stretching assembly 3. The adhesive film 8's own adhesiveness then bonds the spare adhesive film 8 to the original adhesive film 8. Next, a lifting cutter assembly 6 located above cuts the original adhesive film 8 at the output end of the horizontal adhesive stretching assembly 3, and the inclined adhesive stretching assembly 4 moves obliquely upwards, completing the switching. This achieves automatic roll changing without stopping the machine, fundamentally eliminating downtime caused by material changes, ensuring continuous production, and significantly increasing capacity.

[0026] Specifically, refer to Figure 6 The first film unwinding assembly 1 includes a first unwinding drum 101 and a first film tensioning roller assembly 102. The first film tensioning roller assembly 102 includes a plurality of first reversing rollers 103 and a first tensioning roller 104 disposed between two adjacent first reversing rollers 103. The substrate 7 is provided with a first lifting cylinder 105 that drives the first tensioning roller 104 to move up and down. The first slide rail 301 of the horizontal adhesive pulling assembly 3 is disposed diagonally below the plurality of first reversing rollers 103. In this embodiment, the first lifting cylinder 105 pushes the first tensioning roller 104 to move up and down, dynamically adjusting the path length of the adhesive film, thereby maintaining a constant tension force, ensuring the stability of the adhesive film tension during unwinding, and preventing the adhesive film from becoming loose or too tight. Stable tension is a prerequisite for ensuring adhesive application quality and smooth roll changing, ensuring no wrinkles or bubbles, and improving the product yield.

[0027] Specifically, the first film tensioning roller assembly 102 further includes a first lifting guide rail 106 and a first lifting slide 107 disposed on the first lifting guide rail 106. A first counterweight 108 is disposed on the first lifting slide 107, and two first tensioning rollers 104 are disposed on both sides of the first counterweight 108. The push-pull rod of the first lifting cylinder 105 is connected to the first counterweight 108. In this embodiment, the addition of the first lifting guide rail 106, the first lifting slide 107, and the first counterweight 108 constitutes a more precise and stable tensioning system. The first lifting cylinder 105 adjusts the height of the two first tensioning rollers 104 as a whole by pushing the first counterweight 108. The counterweight and guide rail structure ensures smooth movement and load-bearing capacity, providing a more reliable and interference-resistant constant tension control scheme. Tension adjustment is more stable and precise, reducing the risk of tape breakage or poor adhesion caused by tension fluctuations, and enhancing the reliability of the mechanism.

[0028] Specifically, refer to Figure 6The second film unwinding assembly 2 includes a second unwinding drum 201 and a second film tensioning roller assembly 202. The second film tensioning roller assembly 202 includes a plurality of second reversing rollers 203 and a second tensioning roller 204 disposed between two of the second reversing rollers 203. The substrate 7 is provided with a second lifting cylinder 205 for driving the second tensioning roller 204 to move up and down. The second slide rail 401 of the inclined adhesive pulling assembly 4 extends obliquely from below the second reversing roller 203 to the front end of the first slide rail 301.

[0029] Specifically, refer to Figure 6 The second film tensioning roller assembly 202 also includes a second lifting guide rail 206 and a second lifting slide 207 disposed on the second lifting guide rail 206. The second lifting slide 207 is provided with a second counterweight 208. Two second tensioning rollers 204 are provided on both sides of the second counterweight 208. The push-pull rod of the second lifting cylinder 205 is connected to the second counterweight 208.

[0030] Specifically, the first adhesive feeding assembly 302 includes a first slide table 304 disposed on the first slide rail 301 and a first clamp disposed on the first slide table 304. A first clearance groove 9 is provided on the substrate 7 above the first slide rail 301. A first adhesive feeding cylinder 305 for driving the first slide table 304 to slide is arranged horizontally on the back side of the substrate 7.

[0031] Specifically, the first clamp includes a first lower clamping plate 306, a first upper clamping plate 308, and a first clamping drive mechanism 307 that drives the first lower clamping plate 306 and the first upper clamping plate 308 to move relative to each other; the first guide roller assembly 303 includes two first guide rollers 309 provided at the rear end of the first slide 304.

[0032] The film 8 is first released from the first unwinding drum 101 and then reversed by multiple first reversing rollers 103. After being guided by two first guide rollers 309, it moves horizontally to the first lower clamping plate 306 and then horizontally to the front conveying roller.

[0033] In this embodiment, the first clamping cylinder 307 actuates, causing the first upper clamping plate 308 and the first lower clamping plate 306 to clamp the adhesive film head. Subsequently, the first glue-feeding cylinder 305 pushes the entire first slide table 304 forward, accurately delivering the adhesive film to the bonding station. This achieves precise and reliable delivery and positioning of the working adhesive film. The modular glue-pulling assembly automates the adhesive film delivery and achieves high repeatability positioning accuracy, laying the foundation for subsequent splicing operations.

[0034] Specifically, the second glue-feeding assembly 402 includes a second slide table 404 disposed on the second slide rail 401 and a second clamp disposed on the second slide table 404. A second clearance groove 10 is provided on the substrate 7 above the second slide rail 401. A second glue-feeding cylinder 405 for driving the second slide table 404 to slide is arranged horizontally on the back side of the substrate 7.

[0035] Specifically, the second clamp includes a second lower clamping plate 406, a second upper clamping plate 408, and a second clamping drive mechanism 407 that drives the second lower clamping plate 406 and the second upper clamping plate 408 to move relative to each other; the second guide roller assembly 403 includes two second guide rollers 409 provided at the rear end of the second slide table 404.

[0036] The film 8 is first released from the second unwinding drum 201 and then reversed by multiple second reversing rollers 203. After being guided by two second guide rollers 409, it moves horizontally to the second lower clamping plate 406 and then horizontally to the front conveying roller.

[0037] In this embodiment, the spare adhesive film is precisely delivered from the unwinding station below to the joining station via an inclined path. The inclined layout cleverly utilizes space, allowing the two systems to operate independently without interfering with each other, while still meeting at the same joining point, thus achieving a compact design.

[0038] Specifically, the two tape-connecting pressure roller assemblies 5 are arranged vertically opposite each other, with the two assemblies 5 positioned above the first slide rail 301 and below the second slide rail 401, respectively. Each tape-connecting pressure roller assembly 5 includes a support 501, with a vertically arranged pressing cylinder 502 on the front side of the support 501. A rolling roller 503 is located at the end of the push rod of the pressing cylinder 502. The lifting cutter assembly 6 includes a cutting cylinder 601 vertically arranged on the rear side of the support 501 and a cutter 602 located at the end of the push rod of the cutting cylinder 601. In this embodiment, when the new and old adhesive films are delivered to the predetermined position, the two pressing cylinders 502 operate simultaneously, driving the rolling roller 503 to press the two adhesive films together. Subsequently, the cutting cylinder 601 drives the cutter 602 to rise, cutting the old adhesive film that has completed its task. This achieves reliable bonding of the new and old adhesive films and rapid cutting of the old adhesive film. The rollers provide uniform pressure, ensuring a firm, bubble-free bond; the independent cutter assembly operates quickly and cuts cleanly, together guaranteeing the efficiency and reliability of the roll changing process.

[0039] The above embodiments only illustrate one or more implementation methods of this application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A winding machine pole piece protection glue automatic roll changing mechanism, characterized in that, The utility model relates to a kind of adhesive film unwinding assembly and adhesive film unwinding assembly, two are arranged on the base plate (7) in up and down, horizontal adhesive pulling assembly (3) is arranged on the base plate (7) in horizontal, the horizontal adhesive pulling assembly (3) includes first slide rail (301) and first glue sandwiching and feeding assembly (302) of sliding first slide rail (301), the input end of first glue sandwiching and feeding assembly (302) is equipped with the first guide roller shaft assembly (303) corresponding with the first adhesive film unwinding assembly (1);Inclined adhesive pulling assembly (4), the second slide rail (401) of inclined arrangement is equipped in the first slide rail (301) below, and second glue sandwiching and feeding assembly (402) is slid on the second slide rail (401), and the input end of second glue sandwiching and feeding assembly (402) is equipped with the second guide roller shaft assembly (403) corresponding with the second adhesive film unwinding assembly (2);Two tape contact pressure roller assemblies (5), two the glue film (8) of first glue sandwiching and feeding assembly (302) output end and the glue film (8) of second glue sandwiching and feeding assembly (402) output end are mutually pressed tightly after being joined, and lifting cutter assembly (6) is equipped on two tape contact pressure roller assemblies (5). The first adhesive film unwinding assembly (1) includes a first unwinding drum (101) and a first adhesive film tensioning roller shaft assembly (102), the first adhesive film tensioning roller shaft assembly (102) includes a plurality of first reversing rollers (103) and a first tensioning roller (104) disposed between adjacent two first reversing rollers (103), the base plate (7) is provided with a first lifting cylinder (105) for driving the first tensioning roller (104) to move up and down, and the first slide rail (301) of the horizontal adhesive pulling assembly (3) is disposed obliquely below the plurality of first reversing rollers (103).

2. The automatic roll changing mechanism for winding machine pole piece protection glue according to claim 1, characterized in that, The first adhesive film tensioning roller shaft assembly (102) further includes a first lifting guide rail (106) and a first lifting sliding seat (107) disposed on the first lifting guide rail (106), the first lifting sliding seat (107) is provided with a first counterweight seat (108), two first tensioning rollers (104) are disposed on both sides of the first counterweight seat (108), and a push-pull rod of the first lifting cylinder (105) is connected with the first counterweight seat (108).

3. The automatic roll changing mechanism for winding machine pole piece protection glue according to claim 2, characterized in that, The second adhesive film unwinding assembly (2) includes a second unwinding drum (201) and a second adhesive film tensioning roller shaft assembly (202), the second adhesive film tensioning roller shaft assembly (202) includes a plurality of second reversing rollers (203) and a second tensioning roller (204) disposed between two second reversing rollers (203), the base plate (7) is provided with a second lifting cylinder (205) for driving the second tensioning roller (204) to move up and down, and the second slide rail (401) of the inclined adhesive pulling assembly (4) is obliquely extended from the obliquely below of the second reversing roller (203) to the front end of the first slide rail (301).

4. The automatic roll changing mechanism for pole piece protection glue of a winding machine according to claim 3, characterized in that, ​ 5. The automatic roll changing mechanism for pole piece protection glue of a winding machine according to claim 4, characterized in that, The second glue film tensioning roller shaft assembly (202) further comprises a second lifting guide rail (206) and a second lifting sliding seat (207) arranged on the second lifting guide rail (206), and a second counterweight seat (208) is arranged on the second lifting sliding seat (207), two second tensioning rollers (204) are arranged on the two sides of the second counterweight seat (208), and a push-pull rod of the second lifting cylinder (205) is connected with the second counterweight seat (208).

6. The automatic roll changing mechanism for pole piece protection glue of a winding machine according to claim 3, characterized in that, The first glue feeding assembly (302) comprises a first sliding table (304) arranged on the first sliding rail (301) and a first clamp arranged on the first sliding table (304), and a first gap through groove (9) is arranged on the back of the substrate (7) above the first sliding rail (301).

7. The automatic roll changing mechanism for winding machine pole piece protection glue according to claim 6, characterized in that, The first clamp comprises a first lower clamping plate (306), a first upper clamping plate (308) and a first clamping driving mechanism (307) for driving the relative movement of the first lower clamping plate (306) and the first upper clamping plate (308), and the first guide roller shaft assembly (303) comprises two first guide rollers (309) arranged at the rear end of the first sliding table (304).

8. The automatic roll changing mechanism for protecting the pole piece of a winding machine with adhesive according to claim 5 or 6, characterized in that, The second glue feeding assembly (402) comprises a second sliding table (404) arranged on the second sliding rail (401) and a second clamp arranged on the second sliding table (404), and a second gap through groove (10) is arranged on the back of the substrate (7) above the second sliding rail (401).

9. The automatic roll changing mechanism for winding machine pole piece protection glue according to claim 8, characterized in that, The second clamp comprises a second lower clamping plate (406), a second upper clamping plate (408) and a second clamping driving mechanism (407) for driving the relative movement of the second lower clamping plate (406) and the second upper clamping plate (408), and the second guide roller shaft assembly (403) comprises two second guide rollers (409) arranged at the rear end of the second sliding table (404).

10. The automatic roll changing mechanism for pole piece protection glue of a winding machine according to claim 1, characterized in that, The two tape pressing wheel assemblies (5) are arranged opposite to each other, and the two tape pressing wheel assemblies (5) are arranged above the first sliding rail (301) and below the second sliding rail (401) respectively; the tape pressing wheel assembly (5) comprises a support (501), a vertical pressing cylinder (502) is arranged on the front side of the support (501), a rolling wheel (503) is arranged on the push rod end of the pressing cylinder (502), the lifting cutter assembly (6) comprises a vertical cutting cylinder (601) arranged on the rear side of the support (501) and a cutter (602) arranged on the push rod end of the cutting cylinder (601).

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