Automatic roll changing mechanism and automatic roll changing and winding device

Abstract

The utility model relates to the technical field of roll material rolling, and discloses an automatic roll changing mechanism, which is arranged between two rolling shafts and comprises a swing arm guide roller assembly, a roll changing mechanism, a roll changing mechanism and a roll changing mechanism, comprising a swing arm unit arranged corresponding to a winding shaft and a guide roller unit arranged at the swing end of the swing arm unit. The material belt pressing and cutting assembly is arranged corresponding to a winding shaft for receiving the belt, is arranged on the swing arm guide roller assembly and is used for pressing and cutting the material belt; comprising a pressing roller unit connected to the swing arm unit in a swinging mode and a cutter unit connected to the swing arm unit in a swinging mode, and a cutting generation part of the cutter unit is located between the guide roller unit and the pressing roller unit. The utility model provides an automatic roll changing mechanism, which not only can effectively improve the roll changing efficiency of a material belt, but also can effectively overcome the defect of bad glue marks, so that the roll changing quality of the material belt is improved.

Description

Technical Field

[0001] This utility model relates to the field of roll winding technology, specifically to an automatic roll changing mechanism and an automatic roll changing and winding device. Background Technology

[0002] Currently, the production process of lithium battery cells is becoming increasingly mature. The front-end production processes, such as coating, rolling, and slitting, have basically been standardized. In the slitting equipment, the material strips of a specific width after the battery electrode sheets are cut are wound into rolls to facilitate the subsequent use of the electrode sheets.

[0003] Currently, standardized equipment requires switching between reels and drums to continue winding the electrode strip after one roll is fully wound. Existing technology typically involves manually applying double-sided tape or yellow adhesive to the new drum to initially position the strip, facilitating subsequent winding. However, this manual tape application method is not only inefficient but also leaves residue that is difficult to clean and can damage the drum.

[0004] Although existing technologies have designed corresponding automatic roll coating equipment to address efficiency issues, such as the patent application CN117772529A entitled "Automatic Glue Coating Device for Fixed Shaft Rewinding Rolls," which discloses a device that can automatically coat empty rolls during lithium battery production, automating the coating process and improving coating and roll changing efficiency, the problem of needing to manually remove residual glue marks still exists.

[0005] Therefore, researching a technology that can effectively replace adhesive or glue-coating positioning tape has a profound impact on improving the efficiency and quality of tape roll changing. Utility Model Content

[0006] To address the shortcomings of the prior art, this utility model provides an automatic roll changing mechanism. By combining a swing arm guide roller assembly with a strip cutting assembly, the strip is positioned and wound on the take-up shaft. Compared with the manual glue application or positioning method in the prior art, this not only effectively improves the efficiency of strip roll changing but also effectively overcomes glue residue defects, thereby improving the quality of strip roll changing.

[0007] This utility model also provides an automatic roll changing and rewinding device, which combines the above-mentioned automatic roll changing mechanism with a turret-type rewinding mechanism. It can automatically change and rewind the material strip, effectively improving the efficiency and quality of material strip rewinding.

[0008] The technical effects to be achieved by this utility model are realized through the following technical aspects:

[0009] In a first aspect, this utility model provides an automatic winding mechanism, disposed between two take-up shafts, comprising:

[0010] A swing arm guide roller assembly is provided corresponding to the take-up shaft of the tape receiving device and is used to swing and guide the tape to the take-up shaft; it includes a swing arm unit corresponding to the take-up shaft and a guide roller unit provided on the swing end of the swing arm unit.

[0011] The material strip cutting assembly is configured corresponding to the take-up shaft of the strip and is mounted on the swing arm guide roller assembly to press and cut the material strip; it includes a pressure roller unit swingingly connected to the swing arm unit and a cutter unit swingingly connected to the swing arm unit with the cutting point located between the guide roller unit and the pressure roller unit.

[0012] As one preferred embodiment, the swing arm unit includes a swing arm rotating shaft arranged parallel to the axial direction of the take-up shaft, swing arm assemblies disposed at both ends of the swing arm rotating shaft, and a swing drive module connected to the swing arm rotating shaft for driving the swing arm rotating shaft to rotate so that the swing arm assemblies swing.

[0013] As one preferred embodiment, the swing arm assembly includes a first swing arm disposed on one end of the swing arm rotation axis, and a second swing arm symmetrical to the first swing arm and disposed on the other end of the swing arm rotation axis.

[0014] As one preferred embodiment, both the first and second swing arms are hook-shaped swing arms, including an L-shaped swing portion whose top is connected to the swing arm rotation shaft, and a guide roller mounting portion disposed at the bottom of the L-shaped swing portion for mounting the guide roller unit.

[0015] As one preferred embodiment, the guide roller unit includes at least one guide roller that is parallel to the axial direction of the take-up shaft and disposed on the swing end of the swing arm unit.

[0016] As one preferred embodiment, the pressure roller unit and the cutter unit oscillate around the same swing arm connecting axis.

[0017] As one preferred embodiment, the pressure roller unit includes a swing arm connecting shaft arranged parallel to the axial direction of the take-up shaft, a pressure roller group swinging on the swing arm connecting shaft, and a pressure roller swing drive module connected to the pressure roller group and arranged on the swing arm unit.

[0018] As one preferred embodiment, the pressure roller assembly includes at least one pressure roller mounting frame connected to the pressure roller swing drive module and swingingly mounted on the swing arm connecting shaft, and a strip pressure roller mounted on the swing end of the pressure roller mounting frame and capable of freely rotating about a direction parallel to the axial direction of the take-up shaft.

[0019] As one preferred embodiment, the cutter unit includes a cutter mounting bracket that is oscillatingly disposed on both ends of the swing arm connecting shaft, a cutter disposed on the oscillating end of the cutter mounting bracket for cutting the material strip between the pressure roller unit and the guide roller unit, and a cutter oscillation drive module connected to the cutter mounting bracket and disposed on the swing arm unit.

[0020] Secondly, this utility model provides an automatic roll changing and rewinding device, comprising:

[0021] A turret-type winding mechanism includes a turret that can rotate about its centerline, a first winding shaft and a second winding shaft disposed on the turret, and a first guide roller and a second guide roller disposed on the turret and located between the first winding shaft and the second winding shaft.

[0022] The first take-up shaft is used for taking up the material strip, and the second take-up shaft is used for receiving and taking up the material strip after the first take-up shaft is fully wound.

[0023] And the automatic roll changing mechanism described above is provided corresponding to the second take-up shaft to realize automatic roll changing of the material strip.

[0024] In summary, this utility model has at least the following advantages:

[0025] 1. The automatic roll changing mechanism provided by this utility model combines the swing arm guide roller assembly with the strip cutting assembly to realize the roll-up positioning of the strip on the take-up shaft. Compared with the manual glue application or glue positioning method in the prior art, it can not only effectively improve the efficiency of strip roll changing, but also effectively overcome the problem of glue residue, thereby improving the quality of strip roll changing.

[0026] 2. The automatic roll changing and winding device provided by this utility model is formed by combining the above-mentioned automatic roll changing mechanism with the turret winding mechanism, which can automatically change and wind up the material strip, effectively improving the efficiency and quality of material strip winding. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the automatic roll changing mechanism in an embodiment of this utility model.

[0028] Figure 2 This is a schematic diagram of the swing arm guide roller assembly in an embodiment of the present invention.

[0029] Figure 3 This is a schematic diagram of the structure of the first swing arm and the second swing arm in the embodiment of this utility model.

[0030] Figure 4 This is a schematic diagram of the assembly structure of the strip cutting assembly, the first swing arm, and the second swing arm in an embodiment of this utility model.

[0031] Figure 5 This is a schematic diagram of the overall structure of the automatic roll changing and rewinding device according to an embodiment of the present invention.

[0032] Figure label:

[0033] 1. Material strip;

[0034] 10. Automatic roll changing mechanism;

[0035] 100. Swing arm guide roller assembly; 110. Swing arm unit; 111. Swing arm rotation shaft; 112. Swing arm group; 1121. First swing arm; 1122. Second swing arm; 1101. L-shaped swing part; 1102. Guide roller mounting part; 113. Swing drive module; 120. Guide roller unit; 121. First guide roller; 122. Second guide roller;

[0036] 200. Strip cutting assembly; 210. Pressure roller unit; 211. Swing arm connecting shaft; 212. Pressure roller group; 2121. Pressure roller mounting frame; 2122. Strip pressure roller; 213. Pressure roller swing drive module; 220. Cutter unit; 221. Cutter mounting frame; 222. Cutter; 223. Cutter swing drive module;

[0037] 300, Turret; 400, First take-up shaft; 500, Second take-up shaft; 600, First guide roller; 700, Second guide roller. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are some, but not all, of the embodiments of this utility model.

[0039] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0040] Example 1:

[0041] Please see the appendix Figure 1The automatic roll changing mechanism 10 of this utility model embodiment is disposed between two take-up shafts, including a swing arm guide roller assembly 100 corresponding to the take-up shaft receiving the tape, and a strip cutting assembly 200 corresponding to the take-up shaft receiving the tape and disposed on the swing arm guide roller assembly 100. The swing arm guide roller assembly 100 is used to swing and guide the strip to the take-up shaft, and includes a swing arm unit 110 corresponding to the take-up shaft, and a guide roller unit 120 disposed on the swing end of the swing arm unit 110. The strip cutting assembly 200 is used to press and cut the strip, and includes a pressure roller unit 210 swingably connected to the swing arm unit 110, and a cutter unit 220 swingably connected to the swing arm unit 110, with the cutting point located between the guide roller unit 120 and the pressure roller unit 210.

[0042] Taking electrode winding as an example, after the first winding shaft is fully wound, the turret can rotate 180° around its centerline to drive the first winding shaft and the connecting winding shaft mounted on it to switch positions. At this time, the swing arm unit 110 swings, causing the guide roller unit 120 mounted on it to come into contact with the electrode, and then continues to drive the electrode to swing towards the adjacent connecting winding shaft, so that the electrode wraps around the connecting winding shaft via the guide roller unit 120. Preferably, the guide roller unit 120 swings to a position where the angle between the electrode feeding direction and the discharge direction is less than 180°, which can effectively increase the wrap angle between the electrode and the connecting winding shaft, avoiding electrode wrinkling or barrel cracking problems caused by the excessive wrap angle of the roller itself.

[0043] Subsequently, the pressure roller unit 210 attaches the electrode sheet to the take-up shaft, and the cutter unit 220 cuts the electrode sheet. After the electrode sheet is cut, the take-up shaft continues to rotate, and the electrode sheet can be wound onto the take-up shaft by frictional adhesion. Until the electrode sheet production is stable, the pressure roller unit 210 is lifted, causing the pressure roller to separate from the electrode sheet, and the swing arm unit 110 drives the entire swing arm of the mechanism to return to the original position.

[0044] Please refer to the appendix for further details. Figure 2 In some embodiments, the swing arm unit 110 includes a swing arm rotating shaft 111 parallel to the axial direction of the take-up shaft, swing arm assemblies 112 disposed at both ends of the swing arm rotating shaft 111, and a swing drive module 113 connected to the swing arm rotating shaft 111 and used to drive the swing arm rotating shaft 111 to rotate so that the swing arm assembly 112 swings. Preferably, the swing drive module 113 can be a motor drive module or a cylinder drive module. Further, the swing arm assembly 112 includes a first swing arm 1121 disposed at one end of the swing arm rotating shaft 111, and a second swing arm 1122 symmetrical to the first swing arm 1121 and disposed at the other end of the swing arm rotating shaft 111. Please refer to the appendix for further details. Figure 3More preferably, both the first swing arm 1121 and the second swing arm 1122 are hook-shaped swing arms, including an L-shaped swing portion 1101 whose top is connected to the swing arm rotation shaft 111, and a guide roller mounting portion 1102 disposed at the bottom of the L-shaped swing portion 1101 for mounting the guide roller unit 120. The guide roller unit 120 is disposed at the end of the hook-shaped swing arm. After the swing arm unit 110 swings, it can drive the electrode sheet to form a state of wrapping the take-up shaft, so as to effectively increase the wrap angle between the electrode sheet and the take-up shaft. In some embodiments, the guide roller unit 120 includes a first guide roller 121 and a second guide roller 122 that are parallel to the axial direction of the take-up shaft and arranged side by side on the swing end of the swing arm unit 110.

[0045] Furthermore, the pressure roller unit 210 and the cutter unit 220 oscillate about the same swing arm connecting axis. Please refer to the appendix for further details. Figure 4 In some embodiments, the pressure roller unit 210 includes a swing arm connecting shaft 211 arranged parallel to the axial direction of the take-up shaft, a pressure roller assembly 212 oscillating on the swing arm connecting shaft 211, and a pressure roller oscillation drive module 213 connected to the pressure roller assembly 212 and arranged on the swing arm unit 110. The pressure roller assembly 212 includes four pressure roller mounting frames 2121 connected to the pressure roller oscillation drive module 213 and oscillating on the swing arm connecting shaft 211, and a strip pressure roller 2122 arranged on the oscillating end of the pressure roller mounting frame 2121 and rotatable freely around the axial direction parallel to the take-up shaft; preferably, the pressure roller oscillation drive module 213 is a cylinder drive module. When the swing arm unit 110 drives the guide roller unit 120 to swing and the electrode sheet is wrapped onto the take-up shaft, the pressure roller swing drive module 213 is activated, which drives the pressure roller mounting frame 2121 connected to it to swing so that the material strip pressure roller 2122 set on its swing end abuts against the electrode sheet, pressing and positioning the electrode sheet on the take-up shaft. Since the material strip pressure roller 2122 can rotate freely around the direction parallel to the axial direction of the take-up shaft, it does not affect the continued winding and conveying of the electrode sheet.

[0046] Please refer to the appendix for further details. Figure 4 In some embodiments, the cutter unit 220 includes a cutter mounting bracket 221 that is oscillatingly disposed on both ends of the swing arm connecting shaft 211, a cutter 222 disposed on the oscillating end of the cutter mounting bracket 221 for cutting the material strip between the pressure roller unit 210 and the guide roller unit 120, and a cutter oscillating drive module 223 connected to the cutter mounting bracket 221 and disposed on the swing arm unit 110; preferably, the cutter oscillating drive module 223 is a cylinder drive module.

[0047] Example 2:

[0048] Please see the appendix Figure 5 The automatic roll changing and rewinding device in this embodiment of the present invention includes:

[0049] The turret-type winding mechanism includes a turret 300 that can rotate about its center line, a first winding shaft 400 and a second winding shaft 500 disposed on the turret 300, and a first guide roller 600 and a second guide roller 700 disposed on the turret 300 and located between the first winding shaft 400 and the second winding shaft 500.

[0050] The first take-up shaft 400 is used for taking up the material strip 1, and the second take-up shaft 500 is used for connecting and taking up the material strip 1 after the first take-up shaft 400 is fully wound.

[0051] The automatic roll changing mechanism 10 in Embodiment 1 is configured corresponding to the second take-up shaft 500 to realize automatic roll changing of the material strip 1.

[0052] The automatic roll changing and winding device in this embodiment is formed by combining the automatic roll changing mechanism 10 in embodiment 1 with the turret winding mechanism. It can automatically change and wind up the material strip 1, effectively improving the efficiency and quality of the material strip 1 winding.

[0053] As can be seen from the technical solutions of the above embodiments, this utility model provides an automatic roll changing mechanism, which can not only effectively improve the efficiency of tape roll changing, but also effectively overcome adhesive residue defects, thereby improving the quality of tape roll changing. This utility model also provides an automatic roll changing and winding device, which combines the above-mentioned automatic roll changing mechanism with a turret-type winding mechanism, enabling automatic roll changing and winding of the tape, effectively improving the efficiency and quality of tape winding.

[0054] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0055] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0056] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0057] In this invention, unless otherwise expressly specified and limited, "above or below" the first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0058] Although the description of this utility model has been given in conjunction with the specific embodiments described above, it is obvious to those skilled in the art that many substitutions, modifications, and variations can be made based on the above description. Therefore, all such substitutions, modifications, and variations are included within the spirit and scope of the appended claims.

Claims

1. An automatic tape changing mechanism (10), disposed between two take-up shafts, characterized in that, include: The swing arm guide roller assembly (100) is configured to correspond to the take-up shaft of the belt and is used to swing and guide the belt to be conveyed to the take-up shaft; It includes a swing arm unit (110) corresponding to the take-up shaft, and a guide roller unit (120) disposed on the swing end of the swing arm unit (110). And a strip cutting assembly (200), which is correspondingly set on the take-up shaft of the strip and on the swing arm guide roller assembly (100) to press and cut the strip; including a pressure roller unit (210) swingingly connected to the swing arm unit (110) and a cutter unit (220) swingingly connected to the swing arm unit (110) with the cutting point located between the guide roller unit (120) and the pressure roller unit (210).

2. The automatic roll changing mechanism (10) according to claim 1, characterized in that, The swing arm unit (110) includes a swing arm rotating shaft (111) arranged parallel to the axial direction of the take-up shaft, a swing arm assembly (112) disposed at both ends of the swing arm rotating shaft (111), and a swing drive module (113) connected to the swing arm rotating shaft (111) for driving the swing arm rotating shaft (111) to rotate so that the swing arm assembly (112) swings.

3. The automatic roll changing mechanism (10) according to claim 2, characterized in that, The swing arm assembly (112) includes a first swing arm (1121) disposed on one end of the swing arm rotation shaft (111), and a second swing arm (1122) symmetrical to the first swing arm (1121) and disposed on the other end of the swing arm rotation shaft (111).

4. The automatic roll changing mechanism (10) according to claim 3, characterized in that, The first swing arm (1121) and the second swing arm (1122) are both hook-shaped swing arms, including an L-shaped swing part (1101) whose top is connected to the swing arm rotation shaft (111), and a guide roller mounting part (1102) disposed at the bottom of the L-shaped swing part (1101) for mounting the guide roller unit (120).

5. The automatic roll changing mechanism (10) according to claim 1, characterized in that, The guide roller unit (120) includes at least one guide roller that is parallel to the axial direction of the take-up shaft and is disposed on the swing end of the swing arm unit (110).

6. The automatic roll changing mechanism (10) according to claim 1, characterized in that, The pressure roller unit (210) and the cutter unit (220) oscillate about the same swing arm connecting shaft (211).

7. The automatic roll changing mechanism (10) according to claim 1, characterized in that, The pressure roller unit (210) includes a swing arm connecting shaft (211) arranged parallel to the axial direction of the take-up shaft, a pressure roller group (212) swinging on the swing arm connecting shaft (211), and a pressure roller swing drive module (213) connected to the pressure roller group (212) and arranged on the swing arm unit (110).

8. The automatic roll changing mechanism (10) according to claim 7, characterized in that, The pressure roller assembly (212) includes at least one pressure roller mounting frame (2121) connected to the pressure roller swing drive module (213) and swinging on the swing arm connecting shaft (211), and a strip pressure roller (2122) disposed on the swing end of the pressure roller mounting frame (2121) and freely rotating about the direction parallel to the winding shaft axial direction.

9. The automatic roll changing mechanism (10) according to claim 6, characterized in that, The cutting unit (220) includes a cutting mounting bracket (221) that is oscillatingly disposed on both ends of the swing arm connecting shaft (211), a cutting blade (222) disposed on the oscillating end of the cutting mounting bracket (221) for cutting the material strip between the pressure roller unit (210) and the guide roller unit (120), and a cutting blade oscillation drive module (223) that is connected to the cutting mounting bracket (221) and disposed on the swing arm unit (110).

10. An automatic roll changing and rewinding device, characterized in that, include: The turret-type winding mechanism includes a turret (300) rotatable about its centerline, a first winding shaft (400) and a second winding shaft (500) disposed on the turret (300), and a first guide roller (600) and a second guide roller (700) disposed on the turret (300) and located between the first winding shaft (400) and the second winding shaft (500). The first take-up shaft (400) is used for taking up the material strip, and the second take-up shaft (500) is used for connecting and taking up the material strip after the first take-up shaft (400) is fully wound. And the automatic roll changing mechanism (10) according to any one of claims 1-9, which is arranged corresponding to the second take-up shaft (500) to realize automatic roll changing of the material strip.

Images