Winding device

Abstract

The utility model relates to the technical field of pole piece winding, in particular to a winding device. Comprising a first winding shaft for winding a material belt; the second winding shaft is used for winding the material belt; the moving frame is mounted between the first winding shaft and the second winding shaft and can move to a first preset position close to the first winding shaft and a second preset position close to the second winding shaft according to needs; the guide roller assembly is installed on the moving frame and used for guiding a material belt to the first winding shaft or the second winding shaft when the material belt is wound; the first traction roller is mounted on the moving frame; the second traction roller is mounted on the moving frame; and the cutter assembly comprises a first cutter and a second cutter.

Description

Technical Field

[0001] The utility model relates to the technical field of pole piece winding, in particular to a winding device. Background Art

[0002] At present, in the winding of lithium battery electrodes, a turret winding device is usually used for continuous winding of the electrodes. Two symmetrical winding shafts are arranged on the turret. When one of the winding shafts is fully wound, the turret will rotate a fixed angle to switch the position of the unloaded winding shaft and the fully wound winding shaft, and the unloaded winding shaft continues to wind. However, the load of the turret after winding is large, and the turret needs to rotate a large angle when rotating and switching winding, which has a large space demand and a high space occupancy rate, which is not conducive to the setting of the whole equipment. At the same time, the efficiency of receiving and changing the roll is low, which is not suitable for industrial applications.

[0003] Therefore, it is necessary to propose a technical means to solve the above defects. Utility Model Content

[0004] The utility model adopts the following technical solutions:

[0005] A winding device, comprising

[0006] A first winding shaft for winding the material strip;

[0007] A second reel for reeling the material strip;

[0008] A movable frame, the movable frame is installed between the first winding shaft and the second winding shaft, and can be moved to a first preset position close to the first winding shaft and a second preset position close to the second winding shaft as needed;

[0009] A guide roller assembly, the guide roller assembly is installed on the movable frame, and is used to guide the material tape to the first winding shaft or the first winding shaft when the material tape is wound;

[0010] a first traction roller, which is mounted on the moving frame and is used to rotate relative to the guide roller assembly and abut against the second winding shaft when the moving frame moves to the second preset position;

[0011] a second traction roller, which is mounted on the moving frame and is used to rotate relative to the guide roller assembly and abut against the first winding shaft when the moving frame moves to the first preset position;

[0012] The cutter assembly comprises a first cutter and a second cutter; the first cutter is installed in the first traction roller and can extend from the first traction roller to cut the material strip; the second cutter is installed in the second traction roller and can extend from the second traction roller to cut the material strip.

[0013] Preferably, it further comprises a moving component connected to the moving frame and used for driving the moving frame to move to the first preset position or the second preset position.

[0014] Preferably, the guide roller assembly includes a first guide roller and a second guide roller installed on the movable frame; the first traction roller and the second traction roller are both connected to the second guide roller and can rotate relative to the second guide roller.

[0015] Preferably, the second guide roller includes an outer cylinder and an inner cylinder installed in the outer cylinder; the first traction roller is connected to the outer cylinder to rotate relative to the outer cylinder when the outer cylinder rotates; the second traction roller is connected to the inner cylinder to rotate relative to the inner cylinder when the inner cylinder rotates.

[0016] Preferably, the first traction roller is connected to the outer cylinder via a first connecting arm; and the second traction roller is connected to the inner cylinder via a second connecting arm.

[0017] Preferably, it further comprises a first driving assembly connected to the outer cylinder for driving the outer cylinder to rotate, and a second driving assembly connected to the inner cylinder for driving the inner cylinder to rotate.

[0018] Preferably, the first driving assembly includes a first transmission gear installed on the surface side of the outer cylinder and connected to the first connecting arm, a second transmission gear adjacent to the first transmission gear and meshing with the first transmission gear, and a first motor connected to the second transmission gear and used to drive the second transmission gear to rotate.

[0019] Preferably, the second driving assembly comprises a second motor connected to the inner cylinder.

[0020] Preferably, the cutter assembly further comprises a driving unit installed in the first traction roller or the second traction roller and used for driving the first cutter or the second cutter to extend out of or return into the first traction roller or the second traction roller.

[0021] Preferably, a sensor for sensing the first cutter or the second cutter is provided at an end of the first traction roller or the second traction roller.

[0022] The utility model relates to a winding device, which improves the winding and reeling efficiency of the first winding shaft and the second winding shaft by arranging a movable frame, a guide roller assembly, a first traction roller, a second traction roller and a cutter assembly, and at the same time abandons the use of a reeling turret, so that the whole equipment has a smaller space occupancy rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figures 1a to 1eIt is a schematic diagram of a process of changing a roll from a first reel to a second reel in a reeling device of the utility model;

[0024] Figure 2a to Figure 2d It is a schematic diagram of a process of changing the roll from the second reel to the first reel in a reeling device of the utility model;

[0025] Figure 3 It is an overall schematic diagram of a winding device of the utility model. DETAILED DESCRIPTION

[0026] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] A winding device, comprising

[0030] A first winding shaft 10 for winding the material strip A;

[0031] A second winding shaft 20 for winding the material strip A;

[0032] A movable frame 30, the movable frame 30 is installed between the first winding shaft 10 and the second winding shaft 20, and can be moved to a first preset position close to the first winding shaft 10 and a second preset position close to the second winding shaft 20 as needed;

[0033] A guide roller assembly 40, the guide roller assembly 40 is installed on the mobile frame 30, and is used to guide the material strip A to the first winding shaft or the first winding shaft when the material strip A is wound;

[0034] A first traction roller 50, which is installed on the moving frame 30 and is used to rotate relative to the guide roller assembly 40 and abut against the second winding shaft 20 when the moving frame 30 moves to the second preset position;

[0035] A second traction roller 60, which is installed on the moving frame 30 and is used to rotate relative to the guide roller assembly 40 and abut against the first winding shaft 10 when the moving frame 30 moves to the first preset position;

[0036] The cutter assembly (not shown in the figure) includes a first cutter and a second cutter; the first cutter is installed in the first traction roller 50 and can be extended from the first traction roller 50 to cut the material strip A; the second cutter is installed in the second traction roller 60 and can be extended from the second traction roller 60 to cut the material strip A.

[0037] Specifically, the following is a description of the process of the material strip A being wound up by the first winding shaft 10 and switching from the first winding shaft 10 to the second winding shaft 20:

[0038] like Figure 1a As shown, the mobile frame 30 is located in the middle between the first winding shaft 10 and the second winding shaft 20. At this time, the material strip A is wound through the first winding shaft 10 under the guidance of the guide roller assembly 40;

[0039] like Figure 1b As shown, until the first winding shaft 10 is wound up;

[0040] like Figure 1c As shown, after the first winding shaft 10 is wound up, the movable frame 30 moves to the second preset position;

[0041] like Figure 1d As shown, at this time, the first traction roller 50 rotates relative to the guide roller assembly 40, and then abuts against the second winding shaft 20. During its rotation, the pole piece is pulled to the second winding shaft 20. At this time, the first cutter extends from the first traction roller 50 and cuts the material strip A, and then the material strip A is wound up under the drive of the second winding shaft 20;

[0042] like Figure 1e As shown, during the winding process of the second winding shaft 20, the movable frame 30 returns to the center position of the first winding shaft 10 and the second winding shaft 20, so as to facilitate the winding of the second winding shaft 20. At this time, the first winding shaft 10 is replaced for subsequent winding work.

[0043] Specifically, the following is a description of the process of the material strip A being wound by the second winding shaft 20 and switching from the second winding shaft 20 to the first winding shaft 10:

[0044] like Figure 1e As shown, the mobile frame 30 is located in the middle between the first winding shaft 10 and the second winding shaft 20. At this time, the material strip A is wound through the second winding shaft 20 under the guidance of the guide roller assembly 40;

[0045] like Figure 2a As shown, until the second winding shaft 20 is wound up;

[0046] like Figure 2b As shown, after the second winding shaft 20 has finished winding, the movable frame 30 moves to the first preset position;

[0047] like Figure 2c As shown, at this time, the second traction roller 60 rotates relative to the guide roller assembly 40, and then abuts against the first winding shaft 10. During its rotation, the pole piece is pulled to the first winding shaft 10. At this time, the second cutter extends from the second traction roller 60 and cuts the material strip A, and then the material strip A is wound up under the drive of the first winding shaft 10;

[0048] like Figure 2d As shown, during the winding process of the first winding shaft 10, the movable frame 30 returns to the center position of the first winding shaft 10 and the second winding shaft 20, so as to facilitate the winding of the first winding shaft 10. At this time, the second winding shaft 20 is replaced for subsequent winding work.

[0049] The utility model relates to a winding device, which improves the winding and rewinding efficiency of the first winding shaft 10 and the second winding shaft 20 by arranging a movable frame 30, a guide roller assembly 40, a first traction roller 50, a second traction roller 60 and a cutter assembly, while abandoning the use of a reel-changing turret, so that the whole equipment has a smaller space occupancy rate.

[0050] In a specific embodiment, see Figure 3 , and also includes a moving component 70 connected to the moving frame 30 and used to drive the moving frame 30 to move to the first preset position or the second preset position.

[0051] In a specific embodiment, see Figure 3 The guide roller assembly 40 includes a first guide roller 401 and a second guide roller 402 mounted on the moving frame 30; the first traction roller 50 and the second traction roller 60 are both connected to the second guide roller 402 and can rotate relative to the second guide roller 402. Figure 1aWhen the material strip A is wound through the first winding shaft 10 under the guidance of the guide roller assembly 40, the material strip A sequentially passes around the first guide roller 401 and the second guide roller 402, and is wound through the first winding shaft 10; Figure 1e As shown, the material strip A passes around the first guide roller 401 and is wound up by the second winding shaft 20. Further, the second guide roller 402 includes an outer cylinder and an inner cylinder installed in the outer cylinder; the first traction roller 50 is connected to the outer cylinder to rotate relative to the outer cylinder when the outer cylinder rotates; the second traction roller 60 is connected to the inner cylinder to rotate relative to the inner cylinder when the inner cylinder rotates. The first traction roller 50 is connected to the outer cylinder through the first connecting arm 80; the second traction roller 60 is connected to the inner cylinder through the second connecting arm 90. The first connecting arm 80 is set so that when the outer cylinder rotates, the first traction roller 50 is driven to rotate; the second connecting arm 90 is set so that when the inner cylinder rotates, the second traction roller 60 is driven to rotate. It also includes a first driving component connected to the outer cylinder for driving the outer cylinder to rotate, and a second driving component connected to the inner cylinder for driving the inner cylinder to rotate. The first driving assembly includes a first transmission gear 100 installed on the surface side of the outer cylinder and connected to the first connecting arm 80, a second transmission gear 110 adjacent to the first transmission gear 100 and meshing with the first transmission gear 100, and a first motor 120 connected to the second transmission gear 110 for driving the second transmission gear 110 to rotate. In this embodiment, when working, the first motor 120 drives the second transmission gear 110 to rotate, thereby driving the first transmission gear 100 to rotate, thereby driving the first connecting arm 80 and the outer cylinder to rotate, and then driving the first traction roller 50 to rotate. The second driving assembly includes a second motor 130 connected to the inner cylinder. In this embodiment, the inner cylinder is driven to rotate by the second motor 130, and then the second traction roller 60 is driven to rotate through the second connecting arm 90.

[0052] In a specific embodiment, the cutter assembly further includes a driving unit installed in the first traction roller 50 or the second traction roller 60, and used to drive the first cutter or the second cutter to extend out of or return into the first traction roller 50 or the second traction roller 60. In this embodiment, the driving unit includes a driving cylinder installed in the first traction roller 50 or the second traction roller 60 and connected to the first cutter or the second cutter, and used to drive the first cutter or the second cutter to extend out of or return into the first traction roller 50 or the second traction roller 60.

[0053] In a specific embodiment, a sensor (not shown in the figure) for sensing the first cutter or the second cutter is provided at the end of the first traction roller 50 or the second traction roller 60. Specifically, when the first traction roller 50 abuts against the second winding shaft 20 to draw the material strip A to the second winding shaft 20 for winding, the first traction roller 50 also rotates with the material strip A as it advances, thereby driving the first cutter located in the first traction roller 50 to rotate, and the sensor is used to sense the position of the first cutter when it rotates, so as to control the first cutter to extend from the first traction roller 50 when it rotates to a preset position through an external central control device to cut the material strip A, and to rotate to a preset position and return to the first traction roller 50; through the above arrangement, it can effectively avoid the first cutter and the first winding shaft 10 from interfering with each other when cutting the material strip A; in addition, it should be added that in actual operation, the position of the first cutter at this time can be obtained by the angle of the sensor relative to the first cutter and the position of the sensor when it rotates with the first traction roller 50. Similarly, the second traction roller 60 is in contact with the first winding shaft 10 to pull the material strip A to the working state when the first winding shaft 10 is winding, which will not be described in detail here.

[0054] The utility model relates to a winding device, which improves the winding and rewinding efficiency of the first winding shaft 10 and the second winding shaft 20 by arranging a movable frame 30, a guide roller assembly 40, a first traction roller 50, a second traction roller 60 and a cutter assembly, while abandoning the use of a reel-changing turret, so that the whole equipment has a smaller space occupancy rate.

[0055] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A winding device, characterized in that: include A first winding shaft for winding the material strip; A second reel for reeling the material strip; A movable frame, the movable frame is installed between the first winding shaft and the second winding shaft, and can be moved to a first preset position close to the first winding shaft and a second preset position close to the second winding shaft as needed; A guide roller assembly, the guide roller assembly is installed on the movable frame, and is used to guide the material tape to the first winding shaft or the first winding shaft when the material tape is wound; a first traction roller, which is mounted on the moving frame and is used to rotate relative to the guide roller assembly and abut against the second winding shaft when the moving frame moves to the second preset position; a second traction roller, which is mounted on the moving frame and is used to rotate relative to the guide roller assembly and abut against the first winding shaft when the moving frame moves to the first preset position; A cutter assembly, the cutter assembly comprising a first cutter and a second cutter; The first cutter is installed in the first traction roller and can extend from the first traction roller to cut the material strip; the second cutter is installed in the second traction roller and can extend from the second traction roller to cut the material strip.

2. A winding device according to claim 1, characterized in that: It also includes a moving component connected to the moving frame and used to drive the moving frame to move to the first preset position or the second preset position.

3. A winding device according to claim 1, characterized in that: The guide roller assembly includes a first guide roller and a second guide roller installed on the moving frame; the first traction roller and the second traction roller are both connected to the second guide roller and can rotate relative to the second guide roller.

4. A winding device according to claim 3, characterized in that: The second guide roller includes an outer cylinder and an inner cylinder installed in the outer cylinder; the first traction roller is connected to the outer cylinder to rotate relative to the outer cylinder when the outer cylinder rotates; the second traction roller is connected to the inner cylinder to rotate relative to the inner cylinder when the inner cylinder rotates.

5. A winding device according to claim 4, characterized in that: The first traction roller is connected to the outer cylinder via a first connecting arm; the second traction roller is connected to the inner cylinder via a second connecting arm.

6. A winding device according to claim 5, characterized in that: It also includes a first driving component connected to the outer cylinder for driving the outer cylinder to rotate, and a second driving component connected to the inner cylinder for driving the inner cylinder to rotate.

7. A winding device according to claim 6, characterized in that: The first driving assembly includes a first transmission gear installed on the surface side of the outer cylinder and connected to the first connecting arm, a second transmission gear adjacent to the first transmission gear and meshing with the first transmission gear, and a first motor connected to the second transmission gear and used to drive the second transmission gear to rotate.

8. A winding device according to claim 6, characterized in that: The second driving assembly includes a second motor connected to the inner cylinder.

9. A winding device according to claim 1, characterized in that: The cutter assembly further includes a driving unit installed in the first traction roller or the second traction roller and used for driving the first cutter or the second cutter to extend out of or return into the first traction roller or the second traction roller.

10. The winding device according to claim 1, characterized in that: An end of the first traction roller or the second traction roller is provided with a sensor for sensing the first cutter or the second cutter.

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