Double-roller ending glue pasting mechanism

Abstract

The utility model relates to a double-roller ending glue sticking mechanism, which comprises a glue sticking device, a glue preparation device and a glue preparation transposition driving component, the glue sticking device comprises a first roller, a second roller, a moving seat and a glue sticking linear driving module, the first roller and the second roller are arranged on the moving seat, the glue sticking linear driving module is in transmission connection with the moving seat, and the glue preparation device is arranged on the moving seat. The rubberizing linear driving module drives the first roller and the second roller to reciprocate between a rubberizing position and a rubberizing position; the glue preparation device is in transmission connection with the glue preparation transposition driving assembly, at the glue preparation position, the glue preparation transposition driving assembly drives the glue preparation device to move between the first roller and the second roller, and the first roller and the second roller end the adhesive tape through vacuum adsorption; and at the adhesive tape sticking position, the first roller and the second roller respectively stick the ending adhesive tape to the inner battery cell and the outer battery cell of the winding needle. According to the utility model, the first roller and the second roller are used for pasting the ending adhesive tapes on the two battery cells at the same time, so that the ending consistency and stability of the two battery cells are good.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery production technology, and in particular to a double-roller tape application mechanism. Background Technology

[0002] In the lithium battery industry, the one-out-two winding machine for lithium batteries is still in the research and development stage. The winding needle of the one-out-two winding machine winds two cells at a time, which can greatly improve the production capacity of lithium batteries. At the end stage of winding the cells, the winding machine needs to apply finishing adhesive to prevent the wound cells from unwinding after unloading. The one-out-two winding machine needs to apply finishing adhesive to the inner and outer cells on the winding needle at the same time. However, the traditional finishing adhesive application mechanism can only apply finishing adhesive to a single cell. If the traditional finishing adhesive application mechanism is directly applied to the one-out-two winding machine, the finishing adhesive application mechanism needs to move horizontally between the two cells to perform the finishing adhesive application twice. The entire application process takes a long time and cannot guarantee the stability of the finishing process of the inner and outer cells. The finishing adhesive applied to the two cells cannot be guaranteed to be consistent, which makes the traditional finishing adhesive application mechanism unable to meet the needs of the one-out-two winding machine.

[0003] Therefore, it is necessary to design a mechanism for applying finishing adhesive to a one-out-two-winding machine. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a double-roller tape application mechanism.

[0005] This utility model provides a dual-roller tape application mechanism, including a tape application device, a tape preparation device, and a tape preparation switching drive assembly. The tape application device includes a first roller, a second roller, a movable base, and a tape application linear drive module. The first roller and the second roller are arranged side by side on the movable base. The tape application linear drive module is driven by the movable base and drives the first roller and the second roller to reciprocate between the tape preparation position and the tape application position. The tape preparation device is driven by the tape preparation switching drive assembly. At the tape preparation position, the tape preparation switching drive assembly drives the tape preparation device to move between the first roller and the second roller, so that the tape preparation device sequentially applies tape to the roller surface of the first roller and the roller surface of the second roller. The first roller and the second roller use vacuum suction to absorb the tape. At the tape application position, the first roller and the second roller apply the tape to the inner and outer battery cells of the winding needle, respectively.

[0006] In some embodiments, the movable seat is fixed on the slide of the adhesive application linear drive module. The movable seat includes a fixed plate, a horizontal plate, and a reinforcing plate. The fixed plate is fixedly connected to the slide. The horizontal plate is vertically fixed to one side of the fixed plate. The reinforcing plate is vertically fixed between the fixed plate and the horizontal plate. A first mounting plate and a second mounting plate are fixedly disposed on the horizontal plate. A first adhesive application frame and a second adhesive application frame are respectively disposed on the first mounting plate and the second mounting plate. A first roller and a second roller are respectively disposed on the first adhesive application frame and the second adhesive application frame. A first adhesive application guide rail and a first adhesive application cylinder are disposed on the first mounting plate. The first adhesive application cylinder drives the first adhesive application frame and the first roller to move along the first adhesive application guide rail. A second adhesive application guide rail and a second adhesive application cylinder connected to the second adhesive application frame are disposed on the second mounting plate. The second adhesive application cylinder drives the second adhesive application frame and the second roller to move along the second adhesive application guide rail.

[0007] In some embodiments, a first rotary motor is provided on the first adhesive applicator, and a first drive wheel is coaxially provided on the first roller. The first drive wheel is connected to the first rotary motor via a synchronous belt, and the first rotary motor drives the first roller to rotate via the synchronous belt and the first drive wheel. A second rotary motor is provided on the second adhesive applicator, and a second drive wheel is coaxially provided on the second roller. The second drive wheel is connected to the second rotary motor via a synchronous belt, and the second rotary motor drives the second roller to rotate via the synchronous belt and the second drive wheel.

[0008] In some embodiments, the first drive wheel is disposed at the end of the first roller away from the second roller, and the second drive wheel is disposed at the end of the second roller away from the first roller.

[0009] In some embodiments, the first adhesive-applying cylinder and the second adhesive-applying cylinder are arranged in parallel on the movable base, and mounting blocks are fixed to the edges of both the first mounting plate and the second mounting plate. The first adhesive-applying cylinder and the second adhesive-applying cylinder are connected to the corresponding mounting blocks.

[0010] In some embodiments, both the first and second adhesive applicators are fixed with protective covers, and the first and second rollers are located below the respective protective covers.

[0011] In some embodiments, both the first roller and the second roller include a roller body. The roller body has three adsorption zones arranged at equal angles on its surface. The adsorption zones have multiple air holes distributed in a matrix and are provided with clearance positions that cooperate with the cutter of the glue preparation device. The roller body is provided with air channels leading to the air holes. The air channels include an air inlet, an air distribution chamber, and three air distribution chambers that are connected in sequence. The air inlet is located at the axis of the rotating shaft. The air distribution chamber is located at the center of the roller body. The three air distribution chambers are arranged in the interlayer of the roller body and are respectively connected to each air hole in the three adsorption zones.

[0012] In some embodiments, a waste adhesive removal assembly is also included. The waste adhesive removal assembly is located on the side of the adhesive preparation position away from the adhesive application position. The waste adhesive removal assembly includes a first waste adhesive removal roller, a second waste adhesive removal roller, a rotating rod, a moving plate, a waste adhesive removal cylinder, and a fixed rod. The first and second waste adhesive removal rollers are coaxially mounted on the rotating rod. The rotating rod is mounted on the moving plate. The moving plate is fixed to the drive end of the waste adhesive removal cylinder. The waste adhesive removal cylinder is mounted on the fixed rod. Two guide rods are passed through the fixed rod. The guide rods are slidably connected to the fixed rod. One end of the two guide rods is fixed by a connecting plate, and the other end is fixedly connected to the moving plate. The waste adhesive removal cylinder drives the moving plate and the first and second waste adhesive removal rollers to move along the guide rods. During waste adhesive removal, the first and second waste adhesive removal rollers contact the roller surfaces of the first and second rollers, respectively. The first and second rollers, in a rotating state, adhere the corresponding finishing tape to the first and second waste adhesive removal rollers.

[0013] In some embodiments, the glue preparation and repositioning drive assembly includes a mounting base, a glue preparation and repositioning electric cylinder, and a repositioning guide rail. The mounting base is disposed below the glue preparation position. The glue preparation and repositioning electric cylinder and the repositioning guide rail are disposed parallel to each other on the mounting base. A slide for mounting the glue preparation device is disposed on the repositioning guide rail. A push-pull block connected to the driving end of the glue preparation and repositioning electric cylinder is disposed on the edge of the slide. The glue preparation and repositioning electric cylinder drives the slide and the glue preparation device to move along the repositioning guide rail.

[0014] In some embodiments, the glue preparation device includes a vertical plate, an unwinding shaft, a glue-feeding assembly, a glue-clamping and cutting assembly, a glue-pressing and de-glueing assembly, and a screw-feeding assembly. The vertical plate is vertically mounted on a mounting base. The unwinding shaft, glue-feeding assembly, glue-clamping and cutting assembly, and glue-pressing and de-glueing assembly are sequentially mounted on the vertical plate along the conveyor path of the finishing glue strip. A finishing glue tray is fitted onto the unwinding shaft. The glue-feeding assembly is used to feed the finishing glue strip. The glue-clamping and cutting assembly is used to clamp the finishing glue strip and cut out the finishing glue strip. The glue-pressing and de-glueing assembly is located at the end position of the glue feeding at the head of the finishing glue strip and is used to press the head of the finishing glue strip against the roller surface of the first roller or the roller surface of the second roller. The screw-feeding assembly is located on one side of the vertical plate, and the glue-clamping and cutting assembly is connected to the slider of the screw-feeding assembly.

[0015] Compared with the prior art, the beneficial effects of this utility model are: by using the first and second rollers arranged side by side to simultaneously apply finishing tape to the two battery cells inside and outside the winding needle, the consistency and stability of the finishing of the two battery cells are good, which helps to ensure the quality and performance of the battery cells. The first and second rollers are independent of each other and can perform finishing tape application operations for single or double battery cells, thus improving compatibility. Attached Figure Description

[0016] Figure 1This is a three-dimensional structural schematic diagram of the double-roller finishing adhesive application mechanism according to an embodiment of this application.

[0017] Figure 2 This is a schematic planar structure diagram of the double-roller finishing adhesive applicator according to an embodiment of this application.

[0018] Figure 3 This is a three-dimensional structural diagram of the first roller or the second roller according to an embodiment of this application.

[0019] Figure 4 This is a cross-sectional structural diagram of the first or second roller in an embodiment of this application.

[0020] Figure 5 This is a schematic diagram of the planar structure of the adhesive-coated cutting assembly according to an embodiment of this application.

[0021] Figure 6 This is a schematic diagram of the planar structure of the adhesive debonding component according to an embodiment of this application.

[0022] Attached labels: 101, Glue preparation area; 102, Glue application area; 103, Finishing glue tray; 104, Finishing glue strip;

[0023] 1. Adhesive application device; 11. First roller; 111. First adhesive application frame; 112. First adhesive application guide rail; 113. First adhesive application cylinder; 114. First rotary motor; 115. First drive wheel;

[0024] 12. Second roller; 121. Second adhesive applicator; 122. Second adhesive applicator guide rail; 123. Second adhesive applicator cylinder; 124. Second rotary motor; 125. Second drive wheel;

[0025] 13. Movable seat; 131. Fixed plate; 132. Horizontal plate; 133. Reinforcing plate; 134. First mounting plate; 135. Second mounting plate; 136. Mounting block; 137. Protective cover; 138. Synchronous belt;

[0026] 14. Roller body; 141. Adsorption zone; 142. Clearance area; 143. Air hole; 144. Air passage; 145. Air inlet; 146. Air distribution chamber; 147. Air distribution chamber; 148. Rotary joint;

[0027] 2. Adhesive application linear drive module; 21. Slide table;

[0028] 3. Glue preparation device; 31. Vertical plate; 32. Unwinding shaft;

[0029] 33. Glue-pressing assembly; 331. Glue-pressing roller; 332. Glue-pressing cylinder; 333. Belt pressing block; 334. Belt pressing cylinder;

[0030] 34. Clamped cutting assembly; 341. Movable seat; 342. Clamping seat; 343. Cutting blade; 344. Outer pressure block; 345. Clamping cylinder; 346. Cutting cylinder; 347. Outer pressure cylinder; 348. Pressure plate; 349. Alternating cylinder;

[0031] 35. Adhesive pressing and debonding assembly; 351. Debonding seat; 352. Pressure roller; 353. Inner adhesive pressing cylinder; 354. Debonding cylinder;

[0032] 36. Lead screw glue feeding assembly; 37. Damper; 38. Slider;

[0033] 4. Adhesive repositioning drive assembly; 41. Mounting base; 42. Adhesive repositioning electric cylinder; 43. Repositioning guide rail; 44. Slide; 45. Push-pull block;

[0034] 5. Waste adhesive removal assembly; 51. First waste adhesive removal roller; 52. Second waste adhesive removal roller; 53. Rotating rod; 54. Moving plate; 55. Waste adhesive removal cylinder; 56. Fixed rod; 57. Guide rod; 58. Connecting plate. Detailed Implementation

[0035] The specific embodiments of this utility model are described with reference to the accompanying drawings.

[0036] refer to Figure 1 The figure shows a three-dimensional structural diagram of the double-roller tape application mechanism. On the right side of the figure, the first roller 11 and the second roller 12 are arranged side by side. The first roller 11 and the second roller 12 are located at the tape application position 102. The first roller 11 and the second roller 12 at the tape application position 102 apply the tape application to the inner and outer two cells of the winding needle by rotating. This can quickly complete the tape application operation for the two cells. After the tape application is completed, the first roller 11 and the second roller 12 will return to the glue preparation position 101. The glue preparation device 3 will then apply the tape application to the first roller 11 and the second roller 12.

[0037] refer to Figures 1 to 6A double-roller tape application mechanism includes a tape application device 1, a tape preparation device 3, and a tape preparation and switching drive assembly 4. The tape application device 1 includes a first roller 11, a second roller 12, a movable seat 13, and a tape application linear drive module 2. The first roller 11 and the second roller 12 are arranged side by side on the movable seat 13. The tape application linear drive module 2 is connected to the movable seat 13. The tape application linear drive module 2 drives the first roller 11 and the second roller 12 to reciprocate between the tape preparation position 101 and the tape application position 102. The glue preparation device 3 is connected to the glue preparation shifting drive assembly 4. At the glue preparation position 101, the glue preparation shifting drive assembly 4 drives the glue preparation device 3 to move between the first roller 11 and the second roller 12, so that the glue preparation device 3 sequentially applies finishing tape to the roller surface of the first roller 11 and the roller surface of the second roller 12. The first roller 11 and the second roller 12 use vacuum adsorption to collect the finishing tape. At the glue application position 102, the first roller 11 and the second roller 12 apply the finishing tape to the inner and outer battery cells of the winding needle, respectively.

[0038] The dual-roller tape application mechanism of this application simultaneously applies tape to two battery cells inside and outside the winding needle using a first roller 11 and a second roller 12 arranged side by side. This ensures good consistency and stability in the tape application of the two battery cells, which is beneficial to guaranteeing the quality and performance of the battery cells. The first roller 11 and the second roller 12 are independent of each other and can perform tape application for single or dual battery cells, thus improving compatibility.

[0039] In order to install the first roller 11 and the second roller 12, in this embodiment, reference is made to... Figures 1 to 2 The movable seat 13 is fixed on the slide table 21 of the adhesive application linear drive module 2. The movable seat 13 includes a fixed plate 131, a horizontal plate 132, and a reinforcing plate 133. The fixed plate 131 is fixedly connected to the slide table 21. The horizontal plate 132 is vertically fixed to one side of the fixed plate 131. The reinforcing plate 133 is vertically fixed between the fixed plate 131 and the horizontal plate 132. A first mounting plate 134 and a second mounting plate 135 are fixedly arranged on the horizontal plate 132. A first adhesive application frame 111 and a second adhesive application frame 121 are respectively arranged on the first mounting plate 134 and the second mounting plate 135. The first roller... The cylinder 11 and the second roller 12 are respectively mounted on the first adhesive applicator 111 and the second adhesive applicator 121. The first mounting plate 134 is provided with a first adhesive applicator guide rail 112 and a first adhesive applicator cylinder 113. The first adhesive applicator cylinder 113 drives the first adhesive applicator 111 and the first roller 11 to move along the first adhesive applicator guide rail 112. The second mounting plate 135 is provided with a second adhesive applicator guide rail 122 and a second adhesive applicator cylinder 123 connected to the second adhesive applicator 121. The second adhesive applicator cylinder 123 drives the second adhesive applicator 121 and the second roller 12 to move along the second adhesive applicator guide rail 122.

[0040] Understandably, with this configuration, the movable seat 13 is connected to the adhesive application linear drive module 2, allowing the adhesive application linear drive module 2 to drive the movable seat 13, the first roller 11, and the second roller 12 to reciprocate between the adhesive preparation position 101 and the adhesive application position 102. The movable seat 13 is connected to the slide table 21 via a fixed plate 131, and the first roller 11 and the second roller 12 are mounted side-by-side via a horizontal plate 132. A reinforcing plate 133 ensures the structural stability between the fixed plate 131 and the horizontal plate 132, guaranteeing that the movable seat 13 can support the first roller 11 and the second roller 12. The plate 132 is equipped with a first adhesive guide rail 112 and a second adhesive guide rail 122 via a first mounting plate and a second mounting plate 135, which avoids opening too many holes and slots on the horizontal plate 132, and at the same time facilitates the adjustment of the position between the first roller 11 and the second roller 12. The first roller 11 and the second roller 12 are mounted via the first adhesive frame 111 and the second adhesive frame 121. Driven by the first adhesive cylinder 113 and the second adhesive cylinder 123, the roller surface of the first roller 11 and the roller surface of the second roller 12 can better adhere to the surface of the battery cell, so that the finishing tape can be firmly adhered to the battery cell.

[0041] In order to drive the first roller 11 and the second roller 12 to rotate, in this embodiment, reference is made to... Figure 1 A first rotary motor 114 is mounted on the first adhesive applicator 111, and a first drive wheel 115 is coaxially mounted on the first roller 11. The first drive wheel 115 is connected to the first rotary motor 114 via a synchronous belt 138. The first rotary motor 114 drives the first roller 11 to rotate via the synchronous belt 138 and the first drive wheel 115. A second rotary motor 124 is mounted on the second adhesive applicator 121, and a second drive wheel 125 is coaxially mounted on the second roller 12. The second drive wheel 125 is connected to the second rotary motor 124 via a synchronous belt 138. The second rotary motor 124 drives the second roller 12 to rotate via the synchronous belt 138 and the second drive wheel 125.

[0042] Understandably, with this setup, when applying finishing tape, the first roller 11 and the second roller 12 need to rotate with the battery cell so that the finishing tape can be applied along the curved surface of the battery cell. The first rotary motor 114 drives the first roller 11, and the second rotary motor 124 drives the second roller 12. The first rotary motor 114 and the second rotary motor 124 are independently controlled, so that the rotation of the first roller 11 and the second roller 12 is independent. When applying finishing tape to a dual-cell battery, the first rotary motor 114 and the second rotary motor 124 drive the first roller 11 and the second roller 12 to rotate simultaneously, respectively. When applying finishing tape to a single-cell battery, only the first rotary motor 114 or the second rotary motor 124 needs to work, so that only the first roller 11 or the second roller 12 rotates. This allows for the application of finishing tape to both single-cell and dual-cell batteries.

[0043] To better accommodate the two cells inside and outside the coil, in this embodiment, refer to Figure 1 and Figure 2 The first drive wheel 115 is located at the end of the first roller 11 away from the second roller 12, and the second drive wheel 125 is located at the end of the second roller 12 away from the first roller 11.

[0044] Understandably, with this setup, the distance between the inner and outer cells wound simultaneously on the winding needle is smaller. By placing the first drive wheel 115 and the second drive wheel 125 on both sides, the gap between the first roller 11 and the second roller 12 can be smaller, thus better adapting to the distance between the two cells.

[0045] To better drive the first roller 11 and the second roller 12 to perform the finishing tape application operation, in this embodiment, reference is made to... Figure 1 The first adhesive-applying cylinder 113 and the second adhesive-applying cylinder 123 are arranged in parallel on the movable seat 13. The edges of the first mounting plate 134 and the second mounting plate 135 are both fixed with mounting blocks 136. The first adhesive-applying cylinder 113 and the second adhesive-applying cylinder 123 are connected to the corresponding mounting blocks 136.

[0046] Understandably, with this configuration, the first adhesive cylinder 113 and the second adhesive cylinder 123 are parallel to each other. The first adhesive cylinder 113 and the second adhesive cylinder 123 are fixed on the first mounting plate 134 and the second mounting plate 135 by the mounting block 136, which pushes the first roller 11 and the second roller 12 to move relative to the moving seat 13.

[0047] To protect the first roller 11 and the second roller 12, in this embodiment, reference is made to... Figure 2 The first adhesive applicator 111 and the second adhesive applicator 121 are both fixed with protective covers 137, and the first roller 11 and the second roller 12 are located below the corresponding protective covers 137.

[0048] Understandably, in order to avoid interference with the rotation of the first roller 11 and the second roller 12, a protective cover 137 is fixed above the first roller 11 and the second roller 12 by a support rod. The protective cover 137 can isolate the first roller 11 and the second roller 12 from the electrode tape above, thereby preventing the electrode tape from interfering with the first roller 11 and the second roller 12, and preventing other structures from rubbing off the finishing tape on the first roller 11 and the second roller 12.

[0049] To better absorb the finishing tape, in this embodiment, refer to Figure 3 and Figure 4The first roller 11 and the second roller 12 both include a roller body 14. The roller body 14 has three adsorption zones 141 arranged at equal angles on its surface. The adsorption zones 141 have multiple air holes 143 distributed in a matrix and are provided with clearance positions 142 that cooperate with the cutter 343 of the glue preparation device 3. The roller body 14 is provided with air passages 144 leading to the air holes 143. The air passages 144 include an air inlet 145, an air distribution chamber 146, and three air distribution chambers 147 that are connected in sequence. The air inlet 145 is located at the axis of the rotating shaft, the air distribution chamber 146 is located at the center of the roller body 14, and the three air distribution chambers 147 are arranged in the interlayer of the roller body 14 and are respectively connected to each air hole 143 in the three adsorption zones 141.

[0050] Understandably, with this setup, the air inlet 145 is connected to an external air source via the rotary joint 148, and then through the air passage 144 inside the roller body 14, a negative pressure is generated at the air hole 143 of the adsorption zone 141, so that the finishing tape can be adsorbed on the roller surface of the first roller 11 and the roller surface of the second roller 12.

[0051] In order to remove the defective finishing tape affixed to the adsorption area 141, in this embodiment, reference is made to... Figure 1 The double-roller finishing adhesive applicator also includes a waste adhesive removal component 5. The waste adhesive removal component 5 is located on the side of the adhesive preparation position 101 away from the adhesive application position 102. The waste adhesive removal component 5 includes a first waste adhesive removal roller 51, a second waste adhesive removal roller 52, a rotating rod 53, a moving plate 54, a waste adhesive removal cylinder 55, and a fixed rod 56. The first waste adhesive removal roller 51 and the second waste adhesive removal roller 52 are coaxially mounted on the rotating rod 53. The rotating rod 53 is mounted on the moving plate 54, and the moving plate 54 is fixed to the drive end of the waste adhesive removal cylinder 55. The waste adhesive removal cylinder 55 is mounted on the fixed rod 56, and two guide rods pass through the fixed rod 56. 57. Guide rod 57 is slidably connected to fixed rod 56. One end of the two guide rods 57 is fixed by connecting plate 58, and the other end is fixedly connected to moving plate 54. Waste glue removal cylinder 55 drives moving plate 54 and first waste glue removal roller 51 and second waste glue removal roller 52 to move along guide rod 57. When removing waste glue, first waste glue removal roller 51 and second waste glue removal roller 52 contact the roller surface of first roller 11 and roller surface of second roller 12 respectively. First roller 11 and second roller 12 stick the corresponding finishing tape to first waste glue removal roller 51 and second waste glue removal roller 52 in the rotating state.

[0052] Understandably, with this setup, the glue preparation position 101 will be equipped with a vision inspection sensor to detect whether the finishing tape on the adsorption area 141 is properly applied. When the finishing tape in the adsorption area 141 has defects such as wrinkles or insufficient length, the first roller 11 and the second roller 12 need to retract from the glue preparation position 101 to the waste glue removal assembly 5. The waste glue removal cylinder 55 drives the first waste glue removal roller 51 and the second waste glue removal roller 52 to approach the first roller 11 and the second roller 12. The finishing tape on the first roller 11 and the second roller 12 is respectively attached to the first waste removal roller 51 and the second waste removal roller 52. At the same time, the air supply to the first roller 11 and the second roller 12 is disconnected, so that the first roller 11 and the second roller 12 no longer adsorb the finishing tape. Thus, the first waste removal roller 51 and the second waste removal roller 52 remove the finishing tape. After the finishing tape is removed, the first roller 11 and the second roller 12 can be moved to the glue preparation position 101 to prepare glue again.

[0053] In order to drive the glue preparation device 3 to prepare glue for the first roller 11 and the second roller 12, in this embodiment, refer to Figure 1 The glue preparation and repositioning drive assembly 4 includes a mounting base 41, a glue preparation and repositioning electric cylinder 42, and a repositioning guide rail 43. The mounting base 41 is located below the glue preparation position 101. The glue preparation and repositioning electric cylinder 42 and the repositioning guide rail 43 are arranged parallel to each other on the mounting base 41. A slide 44 for mounting the glue preparation device 3 is provided on the repositioning guide rail 43. A push-pull block 45 connected to the driving end of the glue preparation and repositioning electric cylinder 42 is provided on the edge of the slide 44. The glue preparation and repositioning electric cylinder 42 drives the slide 44 and the glue preparation device 3 to move along the repositioning guide rail 43.

[0054] Understandably, with this setup, the glue preparation device 3 is driven to move horizontally by the glue preparation and displacement drive assembly 4. After the glue preparation device 3 finishes preparing glue for the first roller 11, the glue preparation and displacement drive assembly 4 drives the glue preparation device 3 to move to the second roller 12, so that the glue preparation device 3 prepares glue for the second roller 12. This results in a shorter glue delivery stroke for the glue preparation device 3 during the glue preparation process, thus avoiding an overly complex and bulky structure for the glue preparation device 3.

[0055] In order to prepare adhesive on the first roller 11 and the second roller 12, in this embodiment, reference is made to... Figures 1 to 6The glue preparation device 3 includes a vertical plate 31, an unwinding shaft 32, a glue-feeding assembly 33, a glue-clamping and cutting assembly 34, a glue-pressing and de-glueing assembly 35, and a screw-feeding assembly 36. The vertical plate 31 is vertically mounted on the mounting base 41. The unwinding shaft 32, the glue-feeding assembly 33, the glue-clamping and cutting assembly 34, and the glue-pressing and de-glueing assembly 35 are sequentially arranged on the vertical plate 31 along the conveyor path of the finishing glue strip 104. A finishing glue tray 103 is fitted onto the unwinding shaft 32. The glue-feeding assembly 33 is used for... The tape 104 is fed to the pedal, and the tape clamping and cutting assembly 34 is used to clamp the tape 104 and cut out the tape. The tape pressing and de-tapping assembly 35 is set at the end position of the tape head feeding of the tape 104 and is used to press the head of the tape 104 onto the roller surface of the first roller 11 or the roller surface of the second roller 12. The screw feeding assembly 36 is set on one side of the vertical plate 31, and the tape clamping and cutting assembly 34 is connected to the slider 38 of the screw feeding assembly 36.

[0056] It should be further explained that the unwinding shaft 32 is connected to a damper 37, and the unwinding shaft 32 is fitted with a finishing rubber reel 103, and unwinds the finishing rubber strip 104. The rubber-feeding assembly 33 includes a rubber-feeding roller 331, a rubber-feeding cylinder 332, a pressure block 333, and a pressure cylinder 334. The rubber-feeding roller 331 is drivenly connected to the rubber-feeding cylinder 332, and the pressure block 333 is drivenly connected to the pressure cylinder 334. The rubber-clamping and cutting assembly 34 includes a movable seat 341, a rubber-clamping seat 342, a cutter 343, and an outer pressure block 344. The movable seat 341 is fixedly connected to the slider 38, and the movable seat 341 is equipped with a rubber-clamping cylinder 345 and a cutter. The assembly includes a cutting cylinder 346, an external pressure cylinder 347, a clamping seat 342 which is connected to the clamping cylinder 345, a cutter 343 which is connected to the cutting cylinder 346, and an external pressure block 344 which is connected to the external pressure cylinder 347. The adhesive removal assembly 35 includes a removal seat 351, a pressure roller 352, an internal pressure cylinder 353, and a removal cylinder 354. The internal pressure cylinder 353 is mounted on the removal seat 351, and the removal cylinder 354 is mounted between the removal seat 351 and the upright plate 31. The removal seat 351 is movably mounted on the upright plate 31 via the removal cylinder 354. The pressure roller 352 is connected to the internal pressure cylinder 353.

[0057] Understandably, with this setup, the glue preparation process is divided into six stages: glue feeding, glue delivery, internal pressure glue application, external pressure glue application, cutting, and glue removal. During the glue feeding stage, the pressure cylinder 334 drives the pressure block 333 to press the finishing tape onto the material roller. The glue feeding cylinder 332 drives the glue feeding roller 331 downwards, pulling the finishing tape 104 to unwind it. After the glue feeding roller 331 reaches its destination, the pressure block 333 releases the finishing tape. During glue delivery, the clamping cylinder 345 drives the clamping seat 342 to clamp the head of the finishing tape 104. During the internal pressing stage, the avoidance cylinder 349 drives the clamping and cutting assembly 34 to descend a certain height to form a clearance. The glue feeding motor of the screw glue feeding assembly 36 drives the clamping and cutting assembly 34 to move along the glue feeding guide to the pressing and debinding assembly 35. During the internal pressing stage, the avoidance cylinder 349 drives the clamping and cutting assembly 34 to rise a certain height. The air blowing hole 143 of the pressure plate 348 blows air to lift the head of the finishing glue strip 104. The internal pressing cylinder 353 drives the pressure roller 352 to rise, thereby pressing the lifted head of the finishing glue strip 104 onto the first roller 11 or the first roller 352. On the two rollers 12; during the external pressing stage, the clamping cylinder 345 drives the pressure plate 348 to separate from the finishing rubber strip 104, the glue feeding motor drives the clamping and cutting assembly 34 to retract to the initial position, and the external pressing cylinder 347 drives the external pressure block 344 to rise, pressing the finishing rubber strip 104 onto the outer edge of the first roller 11 or the second roller 12; during the cutting stage, the clamping cylinder 345 drives the clamping seat 342 to clamp the finishing rubber strip 104, reducing the deformation of the finishing rubber strip 104 during the cutting process, and then the cutting cylinder 346 drives the cutter 3 43 rises, cutting the finishing tape 104 into a finishing tape; during the degumming stage, the cutting cylinder 346, the outer pressing cylinder 347, and the inner pressing cylinder 353 respectively drive the cutter 343, the outer pressing block 344, and the pressure roller 352 to retract, and the degumming cylinder 354 drives the pressure roller 352 to move away from the finishing tape, pressing the finishing tape on the first roller 11 or the second roller 12 while simultaneously causing the pressure roller 352 to separate from the finishing tape, so that the finishing tape remains on the corresponding adsorption area 141 of the first roller 11 or the second roller 12.

[0058] In this embodiment, the first roller 11 and the second roller 12, arranged side by side, simultaneously apply finishing tape to two battery cells inside and outside the winding needle. This ensures good consistency and stability in the finishing of the two battery cells, which is beneficial for guaranteeing the quality and performance of the battery cells. The first roller 11 and the second roller 12 are independent of each other, allowing for finishing tape application of single or dual battery cells, improving compatibility. The glue preparation device 3 performs glue preparation on the first roller 11 and the second roller 12 separately. After completing the glue preparation for the finishing tape on the first roller 11, the glue preparation device 3 moves to the second roller 12 via a glue preparation switching component. The second roller 12 prepares the finishing tape. After the first roller 11 and the second roller 12 have completed the preparation, the first roller 11 and the second roller 12 move to the adhesive application position 102 to apply the finishing tape to the inner and outer battery cells of the winding needle. During this process, the first rotary motor 114 and the second rotary motor 124 drive the first roller 11 and the second roller 12 to rotate respectively. At the same time, the first adhesive application cylinder 113 and the second adhesive application cylinder 123 push the first roller 11 and the second roller 12 to move towards the inner and outer battery cells, aligning the prepared finishing tape with the battery cell position to complete the adhesive application.

[0059] The above does not limit the technical scope of this utility model. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. A mechanism for applying a tail end adhesive to a double roller, characterized by comprising: The application relates to a tape sticking device, a tape preparing device and a tape preparing transposition driving assembly, wherein the tape sticking device comprises a first roller, a second roller, a moving base and a tape sticking linear driving module; the first roller and the second roller are arranged side by side on the moving base; the tape sticking linear driving module is in transmission connection with the moving base; the tape sticking linear driving module drives the first roller and the second roller to move reciprocally between a tape preparing position and a tape sticking position; the tape preparing device is in transmission connection with the tape preparing transposition driving assembly; at the tape preparing position, the tape preparing transposition driving assembly drives the tape preparing device to move between the first roller and the second roller, so as to drive the tape preparing device to stick end-tape on the roller surface of the first roller and the roller surface of the second roller in sequence; the first roller and the second roller are used for vacuum adsorbing the end-tape; at the tape sticking position, the first roller and the second roller are used for sticking the end-tape on the inner core and the outer core of the winding needle respectively.

2. The dual roll tip taping mechanism of claim 1, wherein, The moving base is fixed on the sliding table of the tape sticking linear driving module; the moving base comprises a fixed plate, a horizontal plate and a reinforcing plate; the fixed plate is in fixed connection with the sliding table; the horizontal plate is vertically fixed on one side of the fixed plate; the reinforcing plate is vertically fixed between the fixed plate and the horizontal plate; the horizontal plate is fixedly provided with a first mounting plate and a second mounting plate; the first mounting plate and the second mounting plate are respectively provided with a first tape sticking frame and a second tape sticking frame; the first roller and the second roller are arranged on the first tape sticking frame and the second tape sticking frame respectively; the first mounting plate is provided with a first tape sticking guide rail and a first tape sticking cylinder; the first tape sticking cylinder drives the first tape sticking frame and the first roller to move along the first tape sticking guide rail; the second mounting plate is provided with a second tape sticking guide rail and a second tape sticking cylinder which are connected with the second tape sticking frame; the second tape sticking cylinder drives the second tape sticking frame and the second roller to move along the second tape sticking guide rail.

3. The dual roll tip taping mechanism of claim 2, wherein, The first tape sticking frame is provided with a first rotating motor; the first roller is coaxially provided with a first driving wheel; the first driving wheel is in transmission connection with the first rotating motor through a synchronous belt; the first rotating motor drives the first roller to rotate through the synchronous belt and the first driving wheel; the second tape sticking frame is provided with a second rotating motor; the second roller is coaxially provided with a second driving wheel; the second driving wheel is in transmission connection with the second rotating motor through a synchronous belt; the second rotating motor drives the second roller to rotate through the synchronous belt and the second driving wheel.

4. The dual roll tip taping mechanism of claim 3, wherein, The first driving wheel is arranged at one end of the first roller which is away from the second roller; the second driving wheel is arranged at one end of the second roller which is away from the first roller.

5. The dual roll tip taping mechanism of claim 2, wherein, The first tape sticking cylinder and the second tape sticking cylinder are arranged in parallel on the moving base; the edges of the first mounting plate and the second mounting plate are fixedly provided with mounting blocks; the first tape sticking cylinder and the second tape sticking cylinder are connected with the corresponding mounting blocks.

6. The dual roll tip taping mechanism of claim 2, wherein, The first tape sticking frame and the second tape sticking frame are fixedly provided with protective covers; the first roller and the second roller are located below the corresponding protective covers.

7. The dual roll tip taping mechanism of claim 2, wherein, The first roller and the second roller each include a roller body, the roller surface of the roller body is provided with three adsorption zones at equal angles, the adsorption zones are distributed with a plurality of air holes in a matrix, and are provided with a clearance position matched with a cutting knife of the glue preparation device, the roller body is provided with an air passage leading to the air holes, the air passage includes a gas inlet hole, a gas distribution cavity and three gas distribution cavities which are communicated in sequence, the gas inlet hole is arranged at the center of the rotating shaft, the gas distribution cavity is located at the center of the roller body, and the three gas distribution cavities are arranged in the interlayer of the roller body and are communicated with the air holes in the three adsorption zones, respectively.

8. The dual roll tip taping mechanism of claim 1, wherein, The waste rubber removing assembly is located on the side of the glue preparation position away from the rubber sticking position, and includes a first waste rubber removing roller, a second waste rubber removing roller, a rotating rod, a moving plate, a waste rubber removing cylinder and a fixing rod. The first waste rubber removing roller and the second waste rubber removing roller are coaxially arranged on the rotating rod, the rotating rod is arranged on the moving plate, the moving plate is fixed with the driving end of the waste rubber removing cylinder, the waste rubber removing cylinder is installed on the fixing rod, two guide rods are arranged on the fixing rod and are slidably connected with the fixing rod, one end of the two guide rods is fixed through a connecting plate, and the other end is fixedly connected with the moving plate. The waste rubber removing cylinder drives the moving plate and the first waste rubber removing roller and the second waste rubber removing roller to move along the guide rods. When the waste rubber is removed, the first waste rubber removing roller and the second waste rubber removing roller are in contact with the roller surface of the first roller and the roller surface of the second roller, respectively. The first roller and the second roller stick the corresponding end rubber tape to the first waste rubber removing roller and the second waste rubber removing roller in a rotating state.

9. The dual roll tip taping mechanism of claim 1, wherein, The glue preparation transposition driving assembly includes a mounting seat, a glue preparation transposition cylinder and a transposition guide rail. The mounting seat is arranged below the glue preparation position. The glue preparation transposition cylinder and the transposition guide rail are arranged in parallel on the mounting seat. A sliding seat for mounting the glue preparation device is arranged on the transposition guide rail. The edge of the sliding seat is provided with a push-pull block connected with the driving end of the glue preparation transposition cylinder. The glue preparation transposition cylinder drives the sliding seat and the glue preparation device to move along the transposition guide rail.

10. The dual roll tip taping mechanism of claim 9, wherein, The glue preparation device includes a vertical plate, a unwinding shaft, a rubber lifting assembly, a rubber clamping and cutting assembly, a rubber pressing and stripping assembly and a screw rod rubber feeding assembly. The vertical plate is arranged vertically on the mounting seat. The unwinding shaft, the rubber lifting assembly, the rubber clamping and cutting assembly and the rubber pressing and stripping assembly are arranged in sequence on the vertical plate along the running path of the end rubber material tape. A end rubber material disc is sleeved on the unwinding shaft. The rubber lifting assembly is used for lifting the end rubber material tape. The rubber clamping and cutting assembly is used for clamping and cutting the end rubber material tape. The rubber pressing and stripping assembly is arranged at the termination position of the head rubber feeding of the end rubber material tape and is used for pressing the head of the end rubber material tape to the roller surface of the first roller or the roller surface of the second roller. The screw rod rubber feeding assembly is arranged on one side of the vertical plate. The rubber clamping and cutting assembly is connected with the sliding block of the screw rod rubber feeding assembly.

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