Cutter tape splicing assembly and winding mechanism
By using a cutter-connecting assembly and a three-axis tower-type winding mechanism, the problems of low roll changing efficiency and the inability of tail material to adhere to the new roll in the existing technology have been solved, achieving efficient automatic roll changing and reducing wrinkles.
Patent Information
- Application Number
- CN202520133012.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-01-20
AI Technical Summary
In the prior art, when the lithium battery winding mechanism changes rolls, the adhesion of the tail material is poor, resulting in the product winding quality being stuck to the adhesive layer of the new roll. In the prior art, the existing winding mechanism requires a machine stop operation when changing rolls, which affects work efficiency, and the tail material cannot be effectively adhered to the new roll, resulting in wrinkles.
The cutter-connecting assembly includes a support frame, a connecting pressure roller, a pressure roller drive module, a cutter, a cutter drive module, and a flexible connecting piece. The flexible connecting piece is connected to the cutter and is used to sweep the tail material onto the adhesive layer of the new roll. Combined with a three-axis tower winding mechanism, it enables automatic roll changing and reduces the length of the tail material.
It improves roll changing efficiency, reduces tail material length, avoids wrinkles, and improves product winding quality.
Smart Images
Figure CN223935897U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to coating take-up and pay-off technology field, concretely relates to a cutting knife tape connecting assembly and winding mechanism. BACKGROUND
[0002] On the lithium battery winding mechanism, the take-up and pay-off mechanism is an indispensable component of the equipment, and the structure and form of the take-up and pay-off directly affect the stability, efficiency and convenience of operation of the equipment. Most of the existing winding mechanisms adopt single-shaft manual roll changing, so the work efficiency is affected, and the heating time of the substrate in the oven is too long during the downtime, causing the substrate to shrink and resulting in waste products. Some winding mechanism devices adopt double-shaft turret type take-up and pay-off mechanisms (refer to Figure 1 ), which have the function of automatic roll changing and improve the roll changing efficiency.
[0003] However, in this way, the tail material between the compression roller and the cutting knife cannot be well attached to the adhesive layer of the new roll, and when the subsequent winding of the tape is carried out, it will be directly pressed onto the tail material, which will cause wrinkles to easily form on the new roll, affecting the winding quality of the product. CONTENT OF THE UTILITY MODEL
[0004] In order to overcome the deficiencies of the prior art, the utility model provides a cutting knife tape connecting assembly and winding mechanism, which effectively improves the roll changing efficiency, shortens the tail material length, and reduces the occurrence of wrinkles.
[0005] On the one hand, the technical scheme adopted by the utility model to solve its technical problems is:
[0006] A cutting knife tape connecting assembly, comprising a support frame, a tape connecting compression roller, a compression roller driving module, a cutting knife, a cutting knife driving module and a flexible tape connecting piece, the compression roller driving module is installed on the support frame and is used to drive the tape connecting compression roller to move towards / away from the new roll, the cutting knife driving module is installed on the support frame and is used to drive the cutting knife to rotate, the flexible tape connecting piece is connected to the cutting knife, and the flexible tape connecting piece sweeps the tail material onto the adhesive layer on the surface of the new roll when the cutting knife rotates.
[0007] As a further improvement of the above technical scheme, the flexible tape connecting piece adopts a brush or a rubber strip.
[0008] As a further improvement of the above technical scheme, the length of the flexible tape connecting piece is 1 / 2-2 / 3 of the length of the cutting knife, and the flexible tape connecting piece is arranged at the middle part of the cutting knife along the length direction of the cutting knife.
[0009] As a further improvement to the above technical solution, the two ends of the cutter are rotatably connected to two opposing support plates of the support frame via a cutter shaft. The cutter drive module includes a connecting block connected to the end of the cutter shaft and a cutter cylinder disposed on the support plate. The piston rod of the cutter cylinder is rotatably connected to the connecting block via a fisheye connector.
[0010] As a further improvement to the above technical solution, the pressure roller drive module includes two pressure roller cylinders respectively mounted on two opposing support plates of the support frame, and the two ends of the pressure roller are rotatably connected to the output ends of the two pressure roller cylinders respectively.
[0011] On the other hand, the technical solution also provided by this utility model is:
[0012] A winding mechanism includes a frame, a turret assembly, and a cutter tape attachment assembly, wherein a support frame of the cutter tape attachment assembly is slidably connected to the frame, and the cutter tape attachment assembly is movable toward or away from the turret assembly.
[0013] As a further improvement to the above technical solution, the support frame is slidably connected to the frame via a linear guide rail, and the frame is provided with a linear displacement drive component for driving the support frame to move.
[0014] As a further improvement to the above technical solution, the turret assembly includes a turret central shaft rotatably mounted on the frame, a turret drive component for driving the turret central shaft to rotate, two flip wall plates correspondingly mounted on the turret central shaft, and three take-up shafts connected between the two flip wall plates and arranged in a circular array.
[0015] As a further improvement to the above technical solution, the turret assembly also includes a wall panel spacing adjustment structure, which is used to adjust the spacing between the two flip wall panels.
[0016] As a further improvement to the above technical solution, the tilting wall panel spacing adjustment structure includes multiple fixed plates fixedly connected to the central axis of the turret, a guide shaft fixedly connected to the fixed plates, a lead screw rotatably connected to the fixed plates, a nut installed on the lead screw, and a three-phase motor driving the lead screw to rotate. The guide shaft and the lead screw are both parallel to the central axis of the turret. The nut is fixedly connected to the tilting wall panel, and the tilting wall panel is slidably connected to the guide shaft.
[0017] The beneficial effects of this utility model are:
[0018] 1. The cut-off strip of the substrate is attached to the tape roll by the cutter attachment assembly, which avoids pressing the strip directly onto the tail material during subsequent winding, thus reducing the occurrence of wrinkles.
[0019] 2. By using three winding shafts in a circular array, a material preparation station is added to the winding and unloading stations. The three winding shafts rotate 120° to change the winding, which improves the efficiency of the winding work. Attached Figure Description
[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0021] Figure 1 This is an assembly diagram of a two-axis tower winding mechanism in the prior art;
[0022] Figure 2 This is an assembly diagram of the three-axis tower winding mechanism in an embodiment of this utility model;
[0023] Figure 3 This is a schematic diagram of the conveyor belt of the three-axis tower winding mechanism in an embodiment of this utility model;
[0024] Figure 4 This is a schematic diagram of the material preparation station in the winding mechanism of this utility model embodiment;
[0025] Figure 5 This is an assembly diagram of the turret assembly of the three-axis turret winding mechanism in this embodiment of the present invention;
[0026] Figure 6 This is a schematic diagram of the turret assembly of the three-axis turret winding mechanism in this embodiment of the present invention;
[0027] Figure 7 This is a schematic diagram of the structure of a cutter tape assembly according to an embodiment of the present invention;
[0028] Figure 8 yes Figure 7 Vertical sectional view.
[0029] Reference numerals: 1. First frame; 2. Turret assembly; 21. Turret central shaft; 22. Tilting wall panel; 23. Rewind shaft A; 24. Rewind shaft B; 25. Rewind shaft C; 26. Chuck; 27. Wall panel spacing adjustment structure; 271. Fixing plate; 272. Guide shaft; 273. Linear bearing; 274. Lead screw; 275. Nut; 276. Three-phase motor; 277. Worm gear reducer; 278. Coupling; 3. Second frame; 4. Support plate; 5. Cutting structure; 51. Cutting blade; 52. Cutting blade shaft; 53. Connecting block; 54. Cutting blade cylinder; 55. Fisheye connector; 6. Belt connection structure; 61. Belt connection pressure roller; 62. Pressure roller cylinder; 63. Flexible belt connection component; 7. Passing roller; 8. Substrate; 9. Swing roller; 10. Linear guide rail. Detailed Implementation
[0030] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages involved in the patent do not simply refer to direct connection of components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. For example, fixed connections / installations can use accessories such as screws and bolts, or can be directly connected by welding, bonding, etc. The various technical features in this utility model can be combined interactively without contradicting each other.
[0031] Reference Figure 2 and Figure 3 This utility model embodiment provides a winding mechanism, including a frame, a turret assembly 2, and a cutter-and-connector assembly. The frame includes a first frame 1 and a second frame 3, the length of the second frame 3 being shorter than the length of the first frame 1. The turret assembly 2 is mounted on the first frame 1, and the support frame of the cutter-and-connector assembly is slidably connected to the second frame 3, allowing it to approach and move away from the turret assembly 2. The second frame 3 is provided with a swing roller 9 and several guide rollers 7. The several guide rollers 7 are used to guide and support the tape feed of the substrate 8, and the swing roller 9 is used to adjust the tape feed tension of the substrate 8. Specifically, refer to... Figure 5 The turret assembly 2 includes a turret central shaft 21 rotatably mounted on the frame, a turret drive component for driving the turret central shaft 21 to rotate, two flip wall plates 22 correspondingly mounted on the turret central shaft 21, and three take-up shafts connected between the two flip wall plates 22 and arranged in a circular array. The three take-up shafts are arranged clockwise at the take-up station, the material preparation station, and the unloading station, respectively. That is, when the flip wall plate 22 rotates 120°, the three take-up shafts rotate to the next station.
[0032] It is understood that the three winding shafts are named winding shaft A23, winding shaft B24, and winding shaft C25 respectively. For example, during normal winding operation, the turret assembly 2 is tilted at 20°, and winding shaft A23 is located at the winding station to perform winding. When winding shaft A23 completes winding, the turret assembly 2 rotates 120°. At this time, winding shaft A23 rotates to the unloading station, and the unloading of the wound substrate 8 roll can be carried out. Winding shaft C25 is in the material preparation station, and the roll can be loaded. Simultaneously, the take-up shaft B24 moves to the take-up station. At this time, the cutter tape splicing assembly moves laterally to the pre-splicing position, and the take-up shaft B24 starts to rotate. When its linear speed is synchronized with the take-up shaft B24, the cutter tape splicing assembly presses the substrate 8 onto the take-up shaft B24 and cuts the substrate 8. Then, the tail of the cut substrate 8 is bonded to the tape on the new roll of tape on the take-up shaft B24. The cutter tape splicing assembly moves away from the turret assembly 2, and the take-up shaft B24 continues to rotate for take-up. When the take-up shaft B24 has finished taking up the tape, the turret assembly 2 rotates 120°, and the take-up shaft C25 moves to the take-up station. The above actions are repeated, which can continuously realize the take-up of the substrate 8 and achieve high work efficiency.
[0033] Furthermore, both of the aforementioned flip wall panels 22 are provided with clamps 26, and the two ends of the take-up shaft are detachably connected to the clamps 26. By clamping or releasing the take-up shaft with the clamps 26, the roll can be quickly unloaded and loaded.
[0034] In this embodiment, refer to Figure 5 and Figure 6 The turret assembly 2 further includes a wall panel spacing adjustment structure 27, which is used to adjust the spacing between two flip wall panels 22. Specifically, the flip wall panel spacing adjustment structure includes multiple fixed plates 271 fixedly connected to the turret central shaft 21, a guide shaft 272 fixedly connected to the fixed plates 271, a lead screw 274 rotatably connected to the fixed plates 271, a nut 275 installed on the lead screw 274, and a three-phase motor 276 driving the lead screw 274 to rotate. The three-phase motor 276 drives the lead screw 274 to rotate through the transmission of a worm gear reducer 277. The guide shaft 272 and the lead screw 274 are both parallel to the turret central shaft 21 and are symmetrically arranged on both sides of the turret central shaft 21. The nut 275 is fixedly connected to one of the flip wall panels 22, and the flip wall panel 22 is slidably connected to the guide shaft 272 through a linear bearing 273.
[0035] It can be understood that when the three-phase motor 276 drives the lead screw 274 to rotate, the flip wall plate 22 moves along the length direction of the lead screw 274 with the nut 275, thereby realizing the adjustment of the distance between the two flip wall plates 22. When it is necessary to change the roll material of different drum lengths, the flip wall plate 22 connected to the nut 275 quickly extends or retracts along the central axis 21 of the turret. After reaching the appropriate position, the take-up shaft is clamped by the chuck 26 provided on the flip wall plate 22. This can accommodate roll materials of different drum lengths with large variations, greatly increasing the equipment's ability to adapt to various working conditions.
[0036] In some embodiments, the turret center shaft 21, guide, and lead screw 274 all adopt a two-section structure to accommodate situations where the coil length is too long, thereby improving the service life of the turret center shaft 21, guide, and lead screw 274. A fixing plate 271 is fixed to one end of each of the two turret center shafts 21, and the two turret center shafts 21 are connected by a connector. The ends of the two lead screws 274 are rotatably connected to the fixing plate 271, and the two lead screws 274 are also connected by a coupling 278. The ends of the two guide shafts 272 are connected to the two fixing plates 271 respectively. Through the above structural design, the reliability of the structure can be improved and the service life can be increased.
[0037] Reference Figure 2 , Figure 7 and Figure 8 This utility model provides a detailed description of the cutter and tape-connecting assembly of the above embodiments. The cutter and tape-connecting assembly includes a support frame and a cutter structure 5 and a tape-connecting structure 6 mounted on the support frame. The support frame is slidably connected to the second frame 3 via a linear guide rail 10, and the second frame 3 is provided with a linear displacement drive (which can be a cylinder, linear motor, or other mechanism) to drive the support frame to move, thereby bringing the cutter structure 5 and the tape-connecting structure 6 closer to or further away from the turret assembly 2. When the cutter structure 5 and the tape-connecting structure 6 are laterally moved to the pre-tape-connecting position, the cutter structure 5 is located above the new roll, and the tape-connecting structure 6 is located between the cutter structure 5 and the tape-connecting pressure roller 61.
[0038] Furthermore, the support frame includes two opposing support plates 4, and the cutter structure 5 includes a cutter 51 and a cutter drive component. The two ends of the cutter 51 are rotatably connected to the two support plates 4 via a cutter shaft 52. The cutter drive component includes a connecting block 53 connected to the end of the cutter shaft 52 and a cutter cylinder 54 disposed on the support plate 4. The piston rod of the cutter cylinder 54 is rotatably connected to the connecting block 53 via a fisheye connector 55. Thus, when the piston rod of the cutter cylinder 54 extends or retracts, under the transmission of the fisheye connector 55 and the connecting block 53, the cutter shaft 52 is driven to rotate, thereby driving the cutter 51 to rotate, so as to cut the substrate 8.
[0039] Reference Figure 4 , Figure 7 and Figure 8 The tape-connecting structure 6 includes a tape-connecting pressure roller 61, a pressure roller driving module, and a flexible tape-connecting component 63. The pressure roller driving module is used to drive the tape-connecting pressure roller 61 to move closer to or away from the take-up shaft located at the take-up station. When the tape-connecting pressure roller 61 moves closer to the take-up shaft located at the take-up station, it is used to press the substrate 8 onto the new roll located at the take-up station to facilitate the take-up operation.
[0040] In addition, the flexible tape connector 63 is connected to the cutter 51. Specifically, the flexible tape connector 63 is connected to the side of the cutter 51 near the tape-connecting pressure roller 61, and the flexible tape connector 63 is set perpendicular to the cutter 51. When the flexible tape connector 63 rotates, the circle of its tail end movement trajectory intersects with the circle of the new roll surface. When the cutter 51 rotates clockwise to cut the substrate 8 and continues to rotate, the flexible tape connector 63 can sweep the tail material onto the tape of the new roll located at the winding station, thereby performing the winding operation. This is equivalent to shortening the tail material length compared to the prior art, thereby avoiding the generation of wrinkles during winding.
[0041] In a specific embodiment, the flexible tape connector 63 can be a long strip of brush or a long strip of adhesive. When the brush or adhesive strip rotates to contact the new roll, it will bend and deform to avoid damage. At the same time, this ensures that the tail material cut off at the front is swept onto the new roll until the tail material adheres to the tape on the new roll. This enables the winding of the substrate 8, while the tape connector roller 61 and cutter 51 are withdrawn to avoid winding.
[0042] In addition, in a preferred embodiment, the length of the flexible connector 63 is 1 / 2 to 2 / 3 of the length of the cutter 51, and the flexible connector 63 is arranged in the middle of the cutter 51 along the length direction of the cutter 51. This ensures that the flexible connector 63 can sweep the tail material onto the new roll while shortening the length of the flexible connector 63, thereby reducing production costs.
[0043] Furthermore, the pressure roller drive module includes two pressure roller cylinders 62 respectively mounted on the two support plates 4. The two ends of the belt-connecting pressure roller 61 are rotatably connected to the output ends of the two pressure roller cylinders 62 respectively. When the pressure roller cylinders 62 extend or retract, they drive the belt-connecting pressure roller 61 to move.
[0044] It can be understood that, in the above embodiments, the cutter 51 and the tape-joining pressure roller 61 can quickly realize the roll change operation when the substrate 8 is being wound up. For example, after the winding shaft B24 finishes winding, the turret assembly 2 rotates 120°, and the winding shaft C25 moves to the winding station. At this time, the linear displacement drive drives the cutter 51 and the tape-joining pressure roller 61 to move laterally to the pre-joining position, and the winding shaft C25 starts to rotate. When its linear speed is synchronized with the winding shaft B24, the pressure roller cylinder 62 drives the tape-joining pressure roller 61 to move and press the substrate onto the new roll of the winding shaft C25. At the same time, the cutter cylinder 54 drives the cutter 51 to move. 1. Rotate clockwise to cut the substrate 8. The cutter 51 continues to rotate, and the flexible tape connector 63 sweeps the tail of the cut substrate 8 onto the tape of the new roll on the take-up shaft C25, thereby shortening the tail length and reducing wrinkles. Then, the linear displacement drive drives the cutter 51 and the tape connector 61 to move away from the turret assembly 2. The take-up shaft C25 continues to rotate to rewind. When the take-up shaft C25 has finished rewinding, the turret assembly 2 rotates 120°, and the take-up shaft A23 moves to the rewinding station. Repeat the above actions to continuously achieve the rewinding of the substrate 8 and improve the roll changing efficiency during rewinding.
[0045] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.
Claims
1. A cutter attachment assembly, characterized in that: It includes a support frame, a tape-connecting pressure roller, a pressure roller drive module, a cutter, a cutter drive module, and a flexible tape-connecting component. The pressure roller drive module is mounted on the support frame and is used to drive the tape-connecting pressure roller to move closer to / away from the new roll. The cutter drive module is mounted on the support frame and is used to drive the cutter to rotate. The flexible tape-connecting component is connected to the cutter. When the flexible tape-connecting component rotates with the cutter, it sweeps the tail material onto the adhesive layer on the surface of the new roll.
2. The cutter attachment assembly according to claim 1, characterized in that: The flexible connector is made of brush or rubber strip.
3. The cutter attachment assembly according to claim 1, characterized in that: The length of the flexible connector is 1 / 2 to 2 / 3 of the length of the cutter, and the flexible connector is disposed in the middle of the cutter along the length direction of the cutter.
4. The cutter attachment assembly according to claim 1, characterized in that: The two ends of the cutter are rotatably connected to two opposing support plates of the support frame via a cutter shaft. The cutter drive module includes a connecting block connected to the end of the cutter shaft and a cutter cylinder mounted on the support plate. The piston rod of the cutter cylinder is rotatably connected to the connecting block via a fisheye connector.
5. The cutter attachment assembly according to claim 1, characterized in that: The pressure roller drive module includes two pressure roller cylinders respectively mounted on two opposing support plates of the support frame, and the two ends of the pressure roller are rotatably connected to the output ends of the two pressure roller cylinders respectively.
6. A winding mechanism, comprising a frame and a turret assembly, characterized in that: It also includes the cutter attachment assembly as described in any one of claims 1-5, wherein the support frame of the cutter attachment assembly is slidably connected to the frame, and the cutter attachment assembly is movable toward or away from the turret assembly.
7. The winding mechanism according to claim 6, characterized in that: The support frame is slidably connected to the frame via a linear guide rail, and the frame is provided with a linear displacement drive component for driving the support frame to move.
8. The winding mechanism according to claim 6, characterized in that: The turret assembly includes a turret central shaft rotatably mounted on the frame, a turret drive unit for driving the turret central shaft to rotate, two flip wall plates correspondingly mounted on the turret central shaft, and three take-up shafts connected between the two flip wall plates and arranged in a circular array.
9. The winding mechanism according to claim 8, characterized in that: The turret assembly also includes a wall panel spacing adjustment structure, which is used to adjust the spacing between the two flip wall panels.
10. The winding mechanism according to claim 9, characterized in that: The tilting wall panel spacing adjustment structure includes multiple fixed plates fixedly connected to the central axis of the turret, a guide shaft fixedly connected to the fixed plates, a lead screw rotatably connected to the fixed plates, a nut installed on the lead screw, and a three-phase motor driving the lead screw to rotate. The guide shaft and the lead screw are both parallel to the central axis of the turret. The nut is fixedly connected to the tilting wall panel, and the tilting wall panel is slidably connected to the guide shaft.