A tab cutting mechanism

Abstract

The utility model discloses a kind of cutting mechanism of tab, the middle part of circular cutter is provided with limiting piece, the rotating shaft is passed through the limiting piece, fastener is threadedly installed on the rotating shaft, 2 the fastener is clamped to 1 the limiting piece, so that the circular cutter is fixed on the rotating shaft;By being provided with threaded limiting piece in the middle part of circular cutter, clamping and fixing of cooperation two sides fastener, break through the adjusting mode of traditional spacer thickness limit, realize the continuous stepless adjustment of cutter axial position, further provide accurate positioning on the scale on open slot, significantly improve adjustment accuracy and efficiency.

Description

Technical Field

[0001] This utility model relates to a rubber cutting mechanism for electrode tabs, belonging to the field of lithium battery electrode tab production. Background Technology

[0002] See Figure 5 The prior art, disclosed in CN203983382U, describes a rubber-cutting mechanism for producing electrode tabs. Its structure includes a base with a U-shaped bracket mounted on it. A rotating shaft and a support shaft are mounted parallel to each other on the two side walls of the U-shaped bracket. A rubber roller is rotatably mounted on the support shaft. Multiple circular cutters are fixed to the rotating shaft at intervals via multiple spacers and locking nuts. Multiple annular grooves are spaced apart on the rubber roller to engage with the circular cutters. The rotating shaft is driven by a motor, which drives the shaft via a synchronous belt and pulley transmission mechanism. The support shaft is held in place by two fastening screws locked to the two side walls of the U-shaped bracket. The rotating shaft is connected to the upper part of the U-shaped bracket via two second bearings. Two bearing caps are also locked to the upper part of the U-shaped bracket to secure the outer rings of the two second bearings. This invention enables rapid rubber cutting as the electrode tab moves, facilitating automated electrode tab production.

[0003] However, after using it for a period of time, our company found that the adjustment of the circular blade mainly depends on the thickness of the spacer, which makes it difficult to achieve stepless adjustment. At the same time, when it is necessary to adjust the position of the circular blade in the middle position, it is also necessary to unscrew the screws on at least one side of the circular blade, which is a rather cumbersome and inconvenient process. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a rubber cutting mechanism for the electrode tab to solve the problem.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a rubber cutting mechanism for an electrode tab includes a base, on which a U-shaped bracket is mounted. A rotating shaft and a support shaft are mounted parallel to each other on the two side walls of the U-shaped bracket. A circular cutter is mounted on the rotating shaft. Multiple annular grooves are spaced apart on the rubber roller to cooperate with multiple circular cutters. A limiting member is provided in the middle of the circular cutter. The rotating shaft passes through the limiting member. Fasteners are threaded on the rotating shaft. Two fasteners clamp one limiting member, thereby fixing the circular cutter on the rotating shaft.

[0006] Preferably, the circular cutter has a hollowed-out center and is fixedly connected to the limiting member on the inner ring edge by at least two connecting arms.

[0007] Preferably, it also includes a partition cage, the partition cage being provided with an opening slot; the connecting arm extends through the opening slot to the limiting member.

[0008] Preferably, one end of the cage is fixedly connected to the rotating shaft, and the other end is open.

[0009] Preferably, the limiting member is a hollow cylinder with threads milled on its inner ring surface, and the limiting member is threadedly connected to the rotating shaft.

[0010] Preferably, the fastener includes a nut and an anti-slip washer; the anti-slip washer is located between the nut and the limiting member, and the nut is threaded onto the rotating shaft so that the anti-slip washer is in close contact with the limiting member.

[0011] Preferably, the opening slot is marked with a scale.

[0012] Beneficial effects

[0013] This invention breaks through the traditional adjustment method that limits the thickness of the spacer by setting a threaded limiting component in the middle of the circular cutter and clamping it with fasteners on both sides. It achieves continuous stepless adjustment of the axial position of the cutter, and the scale on the opening groove provides more precise positioning, significantly improving the adjustment accuracy and efficiency. Attached Figure Description

[0014] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0015] Figure 1 This is a schematic diagram of the rubber cutting mechanism for an electrode tab according to the present invention;

[0016] Figure 2 This is a schematic diagram of the structure of part A of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the circular cutter of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure for mounting the circular cutter of this utility model;

[0019] Figure 5 This is a schematic diagram of the existing technology. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] Please see Figures 1-4 This utility model provides a technical solution for a rubber cutting mechanism for an electrode tab: including an existing base 1, an existing U-shaped bracket 2, a rotating shaft 3, a circular cutter 4, an existing rubber roller 5, a limiting member 42, and a fastener 9;

[0022] The rotating shaft 3 is driven to rotate by a motor 8, which is mounted on the base 1. The motor 8 drives the rotating shaft 3 to rotate through the existing synchronous belt and the existing synchronous belt pulley transmission mechanism.

[0023] Furthermore, a circular cutter 4 is mounted on the rotating shaft 3 via a spacer 6. A limiting member 42 is provided in the middle of the circular cutter 4, and the rotating shaft 3 passes through the limiting member 42 and is fixed by a threaded fastener 9. The rotating shaft 3 serves as the rotation axis of the circular cutter 4; the cooperation of the limiting member 42 and the fastener 9 makes the position of the circular cutter 4 adjustable and firmly fixed.

[0024] Furthermore, the circular cutter 4 has a hollowed-out center and is fixedly connected to the limiting member 42 by at least two connecting arms 41 on the inner ring edge, so that the circular cutter 4 and the connecting arms 41 are fixed.

[0025] Furthermore, the limiting member 42 is a hollow cylinder with threads milled on its inner ring surface, and is threadedly connected to the rotating shaft 3; thus, when installing the circular cutter 4, the circular cutter 4 can be directly screwed onto the rotating shaft 3; preferably, the fastener 9 includes a nut 91 and an anti-slip washer 92. The nut 91 is threaded onto the rotating shaft 3, and the anti-slip washer 92 is located between the nut 91 and the limiting member 42, using the fastener 9 to further stabilize the circular cutter 4 on the rotating shaft 3. In terms of installation method, one fastener 9 is first screwed into the predetermined position, and then the circular cutter 4 is screwed in, followed by the other fastener 9. Then, the circular cutter 4 is finely adjusted according to the scale marked on the opening slot 61 (not shown in the figure) to ensure that the circular cutter 4 is in the predetermined position, and then the two fasteners 9 are tightened respectively to tightly clamp the circular blade.

[0026] To facilitate the installation of the circular cutter 4, one end of the partition cage 6 is fixedly connected to the rotating shaft 3, so that the partition cage 6 can rotate with the rotating shaft 3, while the other end is open, so that the circular cutter 4 can be inserted from the opening slot 61.

[0027] Meanwhile, an existing adjusting seat 7 is fixed to the existing base 1. The adjusting seat 7 is equipped with an adjusting bolt parallel to the support shaft. The middle part of the adjusting bolt is circumferentially rotatable and axially fixed to the adjusting seat 7, and one end of the adjusting bolt is screwed onto one side wall of the U-shaped bracket 2. In this way, when the connection between the U-shaped bracket 2 and the base 1 is loosened, rotating the adjusting bolt allows the U-shaped bracket 2 to move axially along the support shaft, which facilitates the insertion of the circular cutter 4.

[0028] Furthermore, after the position of the circular cutter 4 is adjusted, the corresponding rubber roller 5 needs to be replaced at the same time so that the multiple annular grooves on the rubber roller 5 can cooperate with the multiple circular cutters 4.

[0029] Working principle: Using the existing adjusting seat 7, move one of the U-shaped brackets 2 away from the rotating shaft 3, and then install the circular cutters 4 one by one according to the positions marked on the scale, and fix the circular cutters 4 with the corresponding fasteners 9. Then reset the U-shaped bracket 2 and install the corresponding rubber rollers 6.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the scope of the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A rubber cutting mechanism for an electrode tab, comprising a base, a U-shaped bracket mounted on the base, a rotating shaft and a rubber roller mounted parallel to each other on the two side walls of the U-shaped bracket, a circular cutter mounted on the rotating shaft, and a plurality of annular grooves spaced apart on the rubber roller to cooperate with the plurality of circular cutters; characterized in that: A limiting component is provided in the middle of the circular cutter, and the rotating shaft passes through the limiting component. Fasteners are threaded on the rotating shaft, and two fasteners clamp one limiting component to fix the circular cutter on the rotating shaft.

2. The rubber-cutting mechanism for an electrode tab according to claim 1, characterized in that: The circular cutter has a hollowed-out center and is fixedly connected to the limiting member on the inner ring edge by at least two connecting arms.

3. The rubber-cutting mechanism for an electrode tab according to claim 2, characterized in that: It also includes a partition cage, which is provided with an opening slot; the connecting arm extends through the opening slot to the limiting member.

4. The rubber-cutting mechanism for an electrode tab according to claim 3, characterized in that: One end of the cage is fixedly connected to the rotating shaft, while the other end is open.

5. The rubber-cutting mechanism for an electrode tab according to claim 1, characterized in that: The limiting member is a hollow cylinder with threads milled on its inner ring surface, and the limiting member is threadedly connected to the rotating shaft.

6. The rubber-cutting mechanism for an electrode tab according to claim 1, characterized in that: The fasteners include nuts and anti-slip washers; The anti-slip pad is located between the nut and the limiting member. The nut is threaded onto the rotating shaft, so that the anti-slip pad is tightly attached to the limiting member.

7. The rubber-cutting mechanism for an electrode tab according to claim 3, characterized in that: The opening slot is marked with a scale.

Images