Embedded adhesive tape pasting equipment

Abstract

The utility model discloses pre-embedded adhesive tape pasting equipment which comprises a machine frame. The winding and unwinding mechanism comprises a bottom plate and a plurality of vertical plates sequentially arranged on the bottom plate, each vertical plate is provided with an unwinding assembly, a traction assembly, a winding assembly and a plurality of second passing rollers, the traction assembly is used for pulling an adhesive tape to drive an adhesive roll to be unwound, and the winding assembly is used for winding release paper. The width direction of the film is consistent with the width direction of the foil; the adhesive tape pasting mechanism is used for pasting a plurality of adhesive tapes to the foil and comprises an adhesive tape pasting back roller, an adhesive tape pasting pressing roller and a first power piece, the adhesive tape pasting back roller is used for supporting the foil, and the first power piece is used for driving the adhesive tape pasting pressing roller to be close to or away from the adhesive tape pasting back roller so that the adhesive tapes can be attached to or separated from the foil. According to the utility model, the plurality of adhesive tapes are adhered to the thinned area of the foil material, and the adhesive tapes are torn off after the foil material is coated, so that the thinned area at the edge of the coating of the foil material can be eliminated, and the quality of a battery cell is optimized.

Description

Technical Field

[0001] The utility model relates to the technical field of coating equipment, in particular to a pre-embedded adhesive tape device. Background Art

[0002] As the capacity and energy density of lithium-ion batteries increase, the number of layers in the battery cell increases from a few layers to dozens or even hundreds of layers. Due to the existence of a thinning area in the battery cell, the thickness difference between the edge and the middle area of ​​the battery cell is also getting larger and larger, increasing from a few microns to tens of microns, and even reaching the millimeter level. The thickness difference between the edge and the middle area of ​​the battery cell will lead to inconsistent compaction density of the electrode sheets, as well as inconsistent distances between the positive and negative electrode sheets in the winding core, thus affecting battery cycle life and safety performance. Due to the low compaction density of the thinning area and the large gap between the positive and negative electrode sheets in the thinning area, a large amount of electrolyte is required. The current common method is to compensate with electrolyte by increasing the electrolyte content, reducing polarization, and improving the cycle effect.

[0003] However, increasing the electrolyte will not only result in a loss of weight energy density, but will also only temporarily improve the cycle performance. After the electrolyte is consumed, the cycle acceleration will still decrease, and there is a risk of lithium plating. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the utility model provides a pre-embedded tape-sticking device, which sticks several tapes on the thinned area of ​​the foil and tears off the tapes after the foil is coated, thereby eliminating the thinned area at the edge of the foil coating and optimizing the quality of the battery cell.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] The adhesive tape is applied to the adhesive tape by the adhesive backing roller and the adhesive backing roller is provided on the adhesive tape frame, wherein the adhesive tape is applied to the adhesive tape frame and the adhesive tape frame is provided with an adhesive tape pressing roller and a first power member, wherein the adhesive tape is applied to the adhesive tape frame and the adhesive tape frame is provided with an adhesive tape pressing roller and a first power member, wherein the adhesive tape is applied to the adhesive tape frame and the adhesive tape frame is provided with an adhesive tape pressing roller and a first power member, wherein the adhesive tape is applied to the adhesive tape frame and the adhesive tape frame is provided with an adhesive tape pressing roller and a first power member, wherein the adhesive tape is applied to the adhesive tape frame and the adhesive tape frame is provided with an adhesive tape pressing roller and a first power member, wherein the adhesive tape is applied to the adhesive tape frame and the adhesive tape frame is provided with an adhesive tape pressing roller and a first power member, wherein the adhesive tape is applied to the adhesive tape frame and the adhesive tape frame is provided with an adhesive tape pressing roller and a first power member, wherein the adhesive tape is applied to the adhesive tape frame and the adhesive tape frame is provided with an adhesive tape pressing roller and a first power member, wherein the adhesive tape is applied to the adhesive tape frame and the adhesive tape frame is provided with an adhesive tape pressing roller and a first power member, wherein the adhesive tape is applied to the adhesive tape frame and the adhesive tape frame is provided with an adhesive tape pressing roller and a first power member, wherein the adhesive tape is applied to the adhesive tape frame and the adhesive tape frame is provided with an adhesive tape pressing roller and a first power member, wherein the adhesive tape is applied to the adhesive tape frame and the adhesive tape frame is provided with an adhesive tape pressing roller and a first power member, wherein the adhesive tape is applied to the adhesive tape frame and the adhesive tape frame is provided with an adhesive tape pressing roller and a first power member, wherein the adhesive tape is applied to the adhesive tape frame and the adhesive tape frame is provided with an adhesive tape pressing roller and a first power member

[0007] As a further improvement of the above technical solution, a first correcting assembly is arranged between the frame and the base plate, and the first correcting assembly is used to correct the deviated position of the rewinding and unwinding mechanism. The first correcting assembly includes a support plate, a second power member and a CCD assembly. The second power member is arranged on the support plate, and the CCD assembly is used to photograph and detect the lateral position of the foil. The base plate is slidably connected to the support plate, and the second power member is used to drive the base plate to move along the width direction of the foil.

[0008] As a further improvement of the above technical solution, the second power member includes a first motor and a first screw module, and the base plate is arranged at the output end of the first screw module.

[0009] As a further improvement of the above technical solution, a second correcting assembly is arranged between each vertical plate and the base plate, and the second correcting assembly is used to correct the deviated position of each tape. The second correcting assembly includes a second motor and a second screw module, and the vertical plate is arranged at the output end of the second screw module.

[0010] As a further improvement of the above technical solution, the unwinding assembly includes an unwinding roller, a primary synchronous pulley assembly and a damper, the film is sleeved on the unwinding roller, and the primary synchronous pulley assembly is connected between the unwinding roller and the damper.

[0011] As a further improvement of the above technical solution, the traction assembly includes an active roller, a third motor for driving the active roller to rotate, and two glue pressing modules respectively arranged on both sides of the radial direction of the active roller, one of the glue pressing modules is used to press the tape against the roller surface of the active roller, and the other glue pressing module is used to press the release paper against the roller surface of the active roller.

[0012] As a further improvement of the above technical solution, the glue pressing module includes a fixed frame, a pressure rod rotatably connected to the fixed frame, a belt pressing roller rotatably connected to one end of the pressure rod, and an elastic member connected to the other end of the pressure rod. The elastic member drives the pressure rod to rotate to drive the belt pressing roller close to the active roller.

[0013] As a further improvement of the above technical solution, the winding assembly includes a winding roller and a fourth motor for driving the winding roller to rotate.

[0014] As a further improvement of the above technical solution, a tensioning cache assembly is provided on the vertical plate, and the tensioning cache assembly includes a slide rail, a slider slidingly arranged on the slide rail, a cache tape roller arranged on the slider, and a magnetic grating sensor for sensing the position of the cache tape roller. The slide rail is vertically arranged, the tape is wound on the cache tape roller, and the magnetic grating sensor is located on one side of the slide rail.

[0015] As a further improvement of the above technical solution, a broken belt sensor is further provided on the vertical plate, and the broken belt sensor is used to detect whether the release paper is broken.

[0016] The beneficial effects of the utility model are as follows: the utility model provides a pre-embedded tape-sticking device, which, by setting a reeling and winding mechanism and a tape-sticking mechanism, sticks a plurality of tapes on the thinned areas on both sides of the foil edge and the blank area of ​​the middle tab respectively, and the foil with the tapes is coated, and the thinned areas on both sides of the coating are coated on the tape. After the foil is coated and dried in an oven, the foil is passed through a tape-tearing device to tear off the tape, and the unevenly-thick thinned areas on both sides of the coating are removed when the tape is torn, leaving a coating with uniform thickness, thereby eliminating the thinned areas on the edges of the foil coating and optimizing the quality of the battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 It is a structural diagram provided by an example of the utility model;

[0019] Figure 2 yes Figure 1 sectional view of

[0020] Figure 3 yes Figure 1 Schematic diagram of the structure of the rewinding and unwinding mechanism;

[0021] Figure 4 yes Figure 3 Front view of

[0022] Figure 5 yes Figure 3 Schematic diagram of the local structure;

[0023] Figure 6 yes Figure 5 A structural diagram from another perspective;

[0024] Figure 7 yes Figure 5 Enlarged view of point A in the middle;

[0025] Figure 8 yes Figure 5 Enlarged view of point B in the middle.

[0026] Reference numerals: 1-frame, 11-first roller;

[0027] 21- bottom plate, 22- vertical plate, 23- unwinding assembly, 24- traction assembly, 25- winding assembly, 26- second roller, 27- first deviation correction assembly, 28- second deviation correction assembly, 29- tensioning buffer assembly, 231- unwinding roller, 232- first-level synchronous pulley assembly, 233- damper, 234- material shortage sensor, 241- driving roller, 242- third motor, 243- glue pressing module, 251- winding roller, 252- fourth motor, 253- broken belt sensor Device, 254-full material sensor, 255-secondary synchronous pulley assembly, 271-support plate, 272-second power member, 273-CCD assembly, 281-second motor, 282-second screw module, 291-slide rail, 292-slider, 293-cache tape roller, 294-magnetic grating sensor, 2431-fixed frame, 2432-pressure rod, 2433-belt pressure roller, 2434-elastic member, 2721-first motor, 2722-first screw module;

[0028] 3-Gluing mechanism, 31-Gluing back roller, 32-Gluing pressure roller, 33-First power member. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by technical personnel in this field without creative work are within the scope of protection of the present invention. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the fact that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the creation of the present invention can be combined interactively without conflicting with each other.

[0030] Reference Figures 1 to 6 An embodiment of the present invention provides a pre-embedded tape applying device, comprising a frame 1, on which a plurality of first rollers 11 are provided, and the plurality of first rollers 11 are used to support and guide the foil.

[0031] Furthermore, the frame 1 is provided with a reeling and unreeling mechanism and a gluing mechanism 3 . The reeling and unreeling mechanism is used to unreel a plurality of films and reel in release paper, and the gluing mechanism 3 is used to stick a plurality of tapes on the foil.

[0032] Specifically, the unwinding and winding mechanism includes a base plate 21 and several vertical plates 22 arranged in sequence on the base plate 21. Each vertical plate 22 is provided with an unwinding assembly 23, a traction assembly 24, a rewinding assembly 25 and several second rollers 26. The unwinding assembly 23 is used to unwind the film, the traction assembly 24 is used to pull the tape to drive the film to unwind, the rewinding assembly 25 is used to rewind the release paper, and the several second rollers 26 are used to support and guide the tape and release paper. The width direction of the film is consistent with the width direction of the foil.

[0033] The gluing mechanism 3 includes a gluing back roller 31, a gluing pressure roller 32 and a first power member 33. The gluing back roller 31 is used to support the foil material. The gluing back roller 31 and the gluing pressure roller 32 are parallel to each other. The first power member 33 is used to drive the gluing pressure roller 32 to move closer to or away from the gluing back roller 31 so that the plurality of tapes can be attached to or separated from the foil material.

[0034] During gluing, the first power member 33 drives the gluing pressure roller 32 away from the gluing back roller 31, and then, one end of the tape on the plurality of films is passed between the gluing pressure roller 32 and the gluing back roller 31 and pulled to the corresponding position of the foil. At the same time, the plurality of release papers are pulled onto the corresponding winding assembly 25. Then, the first power member 33 drives the gluing pressure roller 32 close to the gluing back roller 31, so that the plurality of tapes are bonded to the foil. Then, the traction assembly 24 pulls the tape to move, so that the unwinding assembly 23 unwinds the film, and the winding assembly 25 The release paper is wound up, and at the same time, the coating machine is started. The coating machine drives the foil to be transported, so that several tapes are attached to the thinned areas on both sides of the foil edge and the blank area in the middle of the tab. The foil with the tape is coated, and the thinned areas on both sides of the coating are coated on the tape. After the foil is coated and dried in an oven, the foil is passed through the tape tearing equipment to tear off the tape. The uneven thinned areas on both sides of the coating are removed when the tape is torn, leaving a coating of uniform thickness. In this way, the thinned areas on the edges of the foil coating can be eliminated and the quality of the battery cell can be optimized.

[0035] In some preferred embodiments, a first correcting assembly 27 is provided between the frame 1 and the base plate 21. The first correcting assembly 27 is used to correct the deviated position of the reeling and unwinding mechanism. The first correcting assembly 27 includes a support plate 271, a second power member 272 and a CCD assembly 273. The second power member 272 is provided on the support plate 271. The CCD assembly 273 is provided on the frame 1 and is located on one side of the glue backing roller 31. The CCD assembly 273 is used to photograph and detect the lateral position of the foil. The base plate 21 is slidably connected to the support plate 271. The second power member 272 is used to drive the base plate 21 to move along the width direction of the foil.

[0036] It can be understood that after the CCD component 273 captures and detects the lateral position of the foil, the second power member 272 drives the base plate 21 to move to the corresponding position along the width direction of the foil, so that the plurality of tapes correspond to the thinned edge areas on both sides of the foil and the blank area of ​​the middle tab, thereby improving the gluing accuracy of the foil.

[0037] Furthermore, the second power part 272 includes a first motor 2721 and a first screw module 2722. The base plate 21 is arranged at the output end of the first screw module 2722. The first motor 2721 drives the first screw module 2722 to transmit, and the first screw module 2722 drives the base plate 21 to move along the width direction of the foil, thereby improving the correction accuracy of the first correction component 27.

[0038] Furthermore, a second correcting assembly 28 is provided between each vertical plate 22 and the base plate 21. The second correcting assembly 28 is used to correct the deviated position of each tape. The second correcting assembly 28 includes a second motor 281 and a second screw module 282. The vertical plate 22 is provided at the output end of the second screw module 282.

[0039] It can be understood that during the gluing process, the CCD component 273 photographs several tapes and foils at a certain frequency and detects whether the tapes deviate from the position corresponding to the foil. If a tape deviates from the position corresponding to the foil, the corresponding second motor 281 drives the second screw module 282 to transmit, and the second screw module 282 drives the corresponding vertical plate 22 to move along the width direction of the foil. Therefore, the position of each tape is consistent with the corresponding position of the foil, ensuring the position accuracy of each tape.

[0040] In some preferred embodiments, the unwinding assembly 23 includes an unwinding roller 231, a primary synchronous pulley assembly 232 and a damper 233. The film is mounted on the unwinding roller 231. The primary synchronous pulley assembly 232 is connected between the unwinding roller 231 and the damper 233. The damper 233 can provide resistance for the unwinding roller 231, thereby preventing the unwinding roller 231 from rotating too fast and causing the film to be unwound too quickly, thereby ensuring that the tension of the tape is constant.

[0041] Reference Figure 6 Furthermore, the first-stage synchronous pulley assembly 232 includes a first synchronous pulley 2321, a second synchronous pulley 2322, and a synchronous belt 2323 connecting the first synchronous pulley 2321 and the second synchronous pulley 2322. The first synchronous pulley 2321 is connected to the unwinding roller 231, and the second synchronous pulley 2322 is connected to the damper 233, thereby facilitating the arrangement of the damper 233.

[0042] Furthermore, the first-stage synchronous pulley assembly 232 also includes an adjustment plate 2324 and an idler wheel 2325 arranged on the adjustment plate 2324. The idler wheel 2325 is located between the first synchronous wheel 2321 and the second synchronous wheel 2322. By adjusting the position of the adjustment plate 2324, the adjustment plate 2324 drives the idler wheel 2325 to move a certain distance, and the synchronous belt 2323 can be tensioned, thereby preventing the synchronous belt 2323 from slipping.

[0043] Reference Figure 7 In some preferred embodiments, the traction assembly 24 includes an active roller 241, a third motor 242 for driving the active roller 241 to rotate, and two glue pressing modules 243 respectively arranged on both radial sides of the active roller 241, wherein one of the glue pressing modules 243 is used to press the tape onto the roller surface of the active roller 241, and the other glue pressing module 243 is used to press the release paper onto the roller surface of the active roller 241.

[0044] It can be understood that the two pressing modules 243 respectively press the tape and the release paper onto the roller surface of the active roller 241, and the third motor 242 drives the active roller 241 to rotate, thereby preventing the tape and the release paper from slipping during the traction process, and being able to pull the tape and the release paper synchronously to ensure that the unwinding speed and the winding speed are consistent, thereby preventing the release paper from breaking due to excessive force during winding.

[0045] Furthermore, the glue pressing module 243 includes a fixed frame 2431, a pressure rod 2432 rotatably connected to the fixed frame 2431, a belt pressing roller 2433 rotatably connected to one end of the pressure rod 2432, and an elastic member 2434 connected to the other end of the pressure rod 2432. The elastic member 2434 drives the pressure rod 2432 to rotate to drive the belt pressing roller 2433 close to the active roller 241. Specifically, the elastic member 2434 always maintains an elastic force on one end of the pressure rod 2432, so that the pressure rod 2432 is always under force and maintains a tendency to rotate. The pressure rod 2432 drives the belt pressing roller 2433 close to the active roller 241, so that the pressure roller presses the tape or release paper on the roller surface of the active roller 241, thereby reducing the manufacturing cost of the equipment and adapting to different thicknesses of the tape to achieve adaptive adjustment.

[0046] In some preferred embodiments, the winding assembly 25 includes a winding roller 251 and a fourth motor 252 for driving the winding roller 251 to rotate. The release paper is wound around the winding roller 251, and the winding roller 251 rotates to wind the release paper.

[0047] Furthermore, the fourth motor 252 and the winding roller 251 are driven by a secondary synchronous pulley assembly 255, wherein the secondary synchronous pulley assembly 255 includes a damping synchronous pulley, thereby reducing the rotation speed of the winding roller 251 and preventing the winding roller 251 from rotating too fast and tearing the release paper.

[0048] Furthermore, a material shortage sensor 234 and a material fullness sensor 254 are provided on the vertical plate 22 . The material shortage sensor 234 is located on one side of the unwinding roller 231 , and the material fullness sensor 254 is located on one side of the winding roller 251 .

[0049] Specifically, the light emitted by the material shortage sensor 234 shines on the film. During the process of unwinding the tape by the unwinding roller 231, the diameter of the film continues to decrease. When the diameter of the film reaches the set value, the light emitted by the material shortage sensor 234 changes from being blocked by the film to being received. The material shortage sensor 234 transmits the signal to the control system of the equipment, and the control system sends an alarm signal and shuts down, thereby making it easier for the operator to replace the film.

[0050] During the process of the winding roller 251 winding the release paper, the diameter of the release paper roll continues to increase. When the diameter of the release paper roll reaches the set value, the release paper roll blocks the light emitted by the full material sensor 254. The full material sensor 254 transmits a signal to the control system of the equipment. The control system sends an alarm signal and shuts down the equipment, thereby making it easier for the operator to replace the full roll of release paper.

[0051] Furthermore, a broken belt sensor 253 is provided on the vertical plate 22. The broken belt sensor 253 is used to detect whether the release paper is broken. Specifically, during the feeding process of the release paper, the light emitted by the broken belt sensor 253 shines on the release paper, which can sense the release paper. When the release paper is broken, the light emitted by the broken belt sensor 253 does not sense the existence of the release paper. The broken belt sensor 253 transmits the signal to the control system of the equipment, and the control system sends an alarm signal and shuts down, thereby being able to monitor the abnormality of the equipment.

[0052] Reference Figure 5 and Figure 8 In some preferred embodiments, a tensioning buffer assembly 29 is provided on the vertical plate 22. The tensioning buffer assembly 29 includes a slide rail 291, a slider 292 slidingly set on the slide rail 291, a cache tape roller 293 set on the slider 292, and a magnetic grating sensor 294 for sensing the position of the cache tape roller 293. The slide rail 291 is set vertically, the tape is wound on the cache tape roller 293, and the magnetic grating sensor 294 is located on one side of the slide rail 291.

[0053] It is understandable that when there is a speed difference between the linear speed of the adhesive tape and the linear speed of the foil, the adhesive tape will drive the buffering adhesive tape roller 293 to move along the length direction of the slide rail 291 .

[0054] Specifically, when the linear speed of the tape is lower than the linear speed of the foil, the tape drives the buffer tape roller 293 to move upward. At the same time, the magnetic grating sensor 294 senses the displacement of the buffer tape roller 293. The magnetic grating sensor 294 transmits the signal to the third motor 242. The third motor 242 increases the output speed according to a certain ratio, thereby increasing the speed of the active roller 241, so that the linear speed of the tape is consistent with the linear speed of the foil.

[0055] When the linear speed of the tape is greater than the linear speed of the foil, the tape drives the buffer tape roller 293 to move downward. At the same time, the magnetic grating sensor 294 senses the displacement of the buffer tape roller 293. The magnetic grating sensor 294 transmits the signal to the third motor 242. The third motor 242 reduces the output speed according to a certain ratio, and then reduces the speed of the active roller 241, so that the linear speed of the tape is consistent with the linear speed of the foil. In this way, the tension of the tape can be kept constant, and the tape can be prevented from being torn when the linear speed of the tape is significantly different from the linear speed of the foil.

[0056] The above is a specific description of the preferred implementation of the present invention, but the invention of the present invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A pre-embedded tape device, characterized in that: include: A frame is provided with a plurality of first rollers, wherein the plurality of first rollers are used for supporting and guiding the foil; The unwinding and rewinding mechanism is arranged on the frame and includes a bottom plate and a plurality of vertical plates arranged on the bottom plate in sequence. Each of the vertical plates is provided with an unwinding assembly, a traction assembly, a rewinding assembly and a plurality of second rollers. The unwinding assembly is used to unwind the film, the traction assembly is used to pull the tape to drive the film to unwind, the rewinding assembly is used to rewind the release paper, and the plurality of second rollers are used to support and guide the tape and the release paper. The width direction of the film is consistent with the width direction of the foil. The gluing mechanism is used to stick a plurality of adhesive tapes onto the foil material, is arranged on the frame, and includes a gluing back roller, a gluing pressure roller and a first power member. The gluing back roller is used to support the foil material, and the gluing back roller and the gluing pressure roller are parallel to each other. The first power member is used to drive the gluing pressure roller to move closer to or away from the gluing back roller to make the plurality of adhesive tapes adhere to or separate from the foil material.

2. The pre-embedded tape device according to claim 1, characterized in that: A first correction component is provided between the frame and the base plate, and the first correction component is used to correct the deviated position of the rewinding and unwinding mechanism. The first correction component includes a support plate, a second power member and a CCD component. The second power member is provided on the support plate, and the CCD component is used to photograph and detect the lateral position of the foil. The base plate is slidably connected to the support plate, and the second power member is used to drive the base plate to move along the width direction of the foil.

3. The pre-embedded tape device according to claim 2, characterized in that: The second power member includes a first motor and a first screw module, and the base plate is arranged at the output end of the first screw module.

4. The pre-embedded tape device according to claim 1, characterized in that: A second correcting assembly is provided between each of the vertical plates and the base plate. The second correcting assembly is used to correct the deviated position of each tape. The second correcting assembly includes a second motor and a second screw module. The vertical plate is provided at the output end of the second screw module.

5. The pre-embedded tape device according to claim 1, characterized in that: The unwinding assembly includes an unwinding roller, a primary synchronous pulley assembly and a damper. The film is sleeved on the unwinding roller, and the primary synchronous pulley assembly is connected between the unwinding roller and the damper.

6. The pre-embedded tape device according to claim 1, characterized in that: The traction assembly includes an active roller, a third motor for driving the active roller to rotate, and two glue pressing modules respectively arranged on both sides of the radial direction of the active roller, one of the glue pressing modules is used to press the tape against the roller surface of the active roller, and the other glue pressing module is used to press the release paper against the roller surface of the active roller.

7. The pre-embedded tape device according to claim 6, characterized in that: The glue pressing module includes a fixed frame, a pressure rod rotatably connected to the fixed frame, a belt holding roller rotatably connected to one end of the pressure rod, and an elastic member connected to the other end of the pressure rod. The elastic member drives the pressure rod to rotate to drive the belt holding roller close to the active roller.

8. The pre-embedded tape application device according to claim 1, characterized in that: The winding assembly includes a winding roller and a fourth motor for driving the winding roller to rotate.

9. The pre-embedded tape application device according to claim 1, characterized in that: A tensioning cache assembly is provided on the vertical plate, and the tensioning cache assembly includes a slide rail, a slider sliding on the slide rail, a cache tape roller provided on the slider, and a magnetic grating sensor for sensing the position of the cache tape roller. The slide rail is vertically arranged, the tape is wound on the cache tape roller, and the magnetic grating sensor is located on one side of the slide rail.

10. The pre-embedded tape device according to claim 1, characterized in that: The vertical plate is also provided with a broken belt sensor, which is used to detect whether the release paper is broken.

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