Slitting device for composite copper foil production

Abstract

The utility model discloses a slitting device for composite copper foil production, and relates to the technical field of composite copper foil production. Comprising a fixing unit, a positioning unit, a supporting unit and a slitting unit. The fixing unit comprises two supporting seats and an optical axis arranged between the two supporting seats; the positioning unit comprises two positioning lantern rings movably arranged on the optical axis in a sleeving mode and a limiting device for limiting the positioning lantern rings on the optical axis. The supporting unit comprises supporting plates which are arranged on the optical shaft in a sleeving mode and arranged on the sides, close to each other, of the two positioning lantern rings correspondingly. The slitting unit comprises cutter plates detachably arranged on the sides, close to each other, of the two supporting plates, blades detachably arranged on the sides, close to each other, of the two cutter plates, and cutter pressing plates detachably arranged on the sides, close to each other, of the two blades. According to the utility model, the blades made of different materials can be replaced, and the included angle between the blade and the film surface is adjustable, so that the use flexibility of the slitting device can be improved, and the damage to the film surface during secondary back-rolling can be reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of composite copper foil production, and in particular relates to a slitting device for composite copper foil production. Background Art

[0002] Composite copper foil is a new type of current collector material for power batteries. It is mainly composed of three parts. The middle layer is a polypropylene base film, and both sides of the film are copper with a thickness of about 1μm. It is mainly a sandwich structure.

[0003] Compared with traditional metal current collectors, composite copper foil has the following characteristics: high compressive strength, low density, low weight, high specific volume, good uniformity, and high safety performance.

[0004] In the process of making composite copper foil, the polypropylene film needs to be coated for the first time through a magnetron sputtering device, and then the composite copper foil is obtained by a water electroplating device for the second coating.

[0005] Before the second coating, the magnetron treated magnetron base film often needs to be cut on a special slitting machine to match the coating size required for water electroplating.

[0006] In the prior art, the blades on the slitting machine are mostly fixed. In actual use, it is difficult to replace blades of different materials according to the thickness of the magnetron base film, and the angle between the blade and the film surface is also difficult to adjust according to actual needs. As a result, the blade does not completely match the magnetron base film during slitting, which can easily damage the film surface during slitting, seriously affecting the quality of the composite copper foil. Utility Model Content

[0007] The purpose of the utility model is to provide a slitting device for composite copper foil production, which can replace blades of different materials according to actual needs, and can also adjust the angle of the blade so that during the slitting process, the angle between the blade and the film surface is in the most matched state, thereby reducing the damage to the film surface during slitting and effectively improving the quality of the composite copper foil.

[0008] The purpose of this utility model is achieved through the following technical solutions:

[0009] A slitting device for composite copper foil production, comprising a fixing unit, a positioning unit, a supporting unit and a slitting unit;

[0010] Wherein, the fixing unit comprises two supporting seats connected to the unwinding machine platform of the water electroplating equipment, and an optical axis arranged between the two supporting seats;

[0011] The positioning unit comprises two positioning rings movably sleeved on the optical axis, and a limiting device for limiting the positioning rings on the optical axis;

[0012] The support unit comprises support plates which are sleeved on the optical axis and respectively arranged on the sides of the two positioning rings close to each other;

[0013] The slitting unit comprises a cutting plate detachably arranged on the side where the two support plates are close to each other, a blade detachably arranged on the side where the two cutting plates are close to each other, and a pressing plate detachably arranged on the side where the two blades are close to each other.

[0014] Preferably, the limiting device includes a first screw hole arranged on the positioning collar, a second screw hole arranged on the optical axis and adapted to the first screw hole, and a first bolt arranged between the first screw hole and the second screw hole.

[0015] Preferably, the cutting plate and the supporting plate are connected via a second bolt.

[0016] Preferably, an arc-shaped groove is provided on the cutting plate, and the second bolt is provided in the arc-shaped groove.

[0017] Preferably, the knife pressing plate, the blade and the cutting plate are connected by a third bolt.

[0018] Preferably, the cutting plate and the pressing plate are made of insulating materials.

[0019] Preferably, the slitting device further comprises a waste edge processing unit, and the waste edge processing unit comprises a servo motor and a 3-inch air expansion shaft.

[0020] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0021] Through the support seat and the optical axis, it is convenient to install the slitting device on the unwinding machine of the water electroplating equipment to facilitate the slitting operation; by arranging two positioning rings on the optical axis and limiting the positioning rings on the optical axis, the widths of the two positioning rings can be adjusted according to the processing width of the magnetron base film on the unwinding machine of the water electroplating equipment to adapt to the processing size of the magnetron base film; by arranging a support plate on the side where the two positioning rings are close to each other and detachably arranging a cutting plate on the support plate, the angle of the cutting plate can be adjusted, and then the angle between the blade arranged on the cutting plate and the film surface can be adjusted; by detachably arranging the blade between the cutting plate and the pressing plate, it is convenient to replace blades of different materials or thicknesses, thereby improving the use flexibility of the slitting device, making the thickness and angle of the blade adapted to the magnetron base film, thereby effectively reducing the damage to the film surface during slitting and improving the quality of the composite copper foil. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 : A schematic diagram of the forward three-dimensional structure of the utility model;

[0023] Figure 2 : Figure 1 A is a schematic diagram of the enlarged structure of the middle part;

[0024] Figure 3 : A schematic structural diagram of the waste edge processing unit in the utility model in the front view direction;

[0025] In the figure: 1-support seat, 2-optical axis, 3-positioning ring, 4-support plate, 5-cutting plate, 6-blade, 7-pressing plate, 8-first screw hole, 9-second bolt, 10-third bolt, 11-water electroplating equipment unwinding machine, 51-servo motor, 52-3-inch air expansion shaft. DETAILED DESCRIPTION

[0026] Example 1

[0027] In the prior art, the blades on the slitting machine are mostly fixed. In actual use, it is difficult to replace the blades of different materials according to the thickness of the magnetron film, and the angle between the blade and the film surface is also difficult to adjust according to actual needs. As a result, the blade does not completely match the magnetron film during slitting, which easily causes damage to the film surface during slitting, seriously affecting the quality of the composite copper foil.

[0028] Based on this, the utility model provides a slitting device for composite copper foil production, such as Figure 1 As shown, it includes a fixing unit, a positioning unit, a supporting unit and a cutting unit;

[0029] The fixing unit includes two support seats 1 connected to the unwinding machine 11 of the water electroplating equipment, and an optical axis 2 arranged between the two support seats 1; Figure 1 As shown, the support seat 1 is fixed on the unwinding machine platform 11 of the water electroplating equipment by a fourth bolt;

[0030] The positioning unit includes two positioning rings 3 movably mounted on the optical axis 2, and a limiting device for limiting the positioning rings 3 on the optical axis 2; the positioning rings 3 are slidably arranged on the optical axis 2; Figure 1 As shown, the limiting device includes a first screw hole 8 arranged on the positioning ring 3, a second screw hole arranged on the optical axis 2 and adapted to the first screw hole 8, and a first bolt arranged between the first screw hole 8 and the second screw hole; in addition, in actual implementation, a plurality of second screw holes can be arranged along the length direction of the optical axis 2 to freely adjust the distance between the two positioning rings 3, thereby meeting the slitting requirements of magnetron base films of different widths.

[0031] The support unit includes a support plate 4 which is sleeved on the optical axis 2 and respectively arranged on one side of the two positioning rings 3 close to each other;

[0032] like Figure 1 and Figure 2 As shown, the slitting unit includes a cutting plate 5 detachably arranged on the side where the two support plates 4 are close to each other, a blade 6 detachably arranged on the side where the two cutting plates 5 are close to each other, and a pressing plate 7 detachably arranged on the side where the two blades 6 are close to each other. Figure 2 As shown, the cutting plate 5 and the supporting plate 4 are connected by a second bolt 9; further, as Figure 1 and Figure 2 As shown, the cutting plate 5 is provided with an arc groove, and the second bolt 9 is provided in the arc groove, that is, the cutting plate 5 is connected to the support plate 4 through two second bolts 9 to adjust the angle between the cutting plate 5 and the support plate 4. The pressing plate 7, the blade 6 and the cutting plate 5 are connected by a third bolt 10. Further, as Figure 3 As shown, the slitting device also includes a waste edge processing unit, which includes a servo motor 51 and a 3-inch air expansion shaft 52 to slit the waste edges and rewind them. In this process, servo control is used to achieve synchronous rewinding without affecting the smooth operation of the water electroplating unwinding and winding equipment.

[0033] Here’s how it works:

[0034] S1: adjusting the distance between the two positioning rings 3 according to the cutting size of the magnetron base film, and then fixing the two positioning rings 3 on the optical axis 2 by a first bolt;

[0035] S2: Fix the support plate 4 to the collar by means of a fifth bolt;

[0036] S3: placing the blade 6 on the cutting plate 5, placing the pressing plate 7 on the blade 6, and then fixing the blade 6, the pressing plate 7 and the cutting plate 5 with the third bolt 10, and then fixing the cutting plate 5 on the supporting plate 4 with two second bolts 9. In actual implementation, since an arc groove is provided on the cutting plate 5, the angle between the cutting plate 5 and the supporting plate 4 can be adjusted, and then the angle between the blade 6 and the membrane surface can be adjusted according to actual needs;

[0037] S5: then the water electroplating unwinding and winding system is turned on, and after the magnetron polypropylene film runs stably, the film surface is cut by the blade 6;

[0038] S6: Turn on the servo motor 51 to operate the scrap processing unit, and pull the scrap generated by slitting onto the 3-inch air expansion shaft 52 to complete the winding;

[0039] S7: Repeat steps S1-S6 to complete the second cutting, and the third cutting is the same.

[0040] The utility model can replace the blades 6 of different materials to cut magnetron films of different thicknesses, and the angle between the blade 6 and the film surface can be adjusted according to actual needs, which greatly improves the flexibility of the slitting device. At the same time, it can also effectively avoid the damage to the film surface caused by secondary rewinding, while also improving work efficiency and reducing costs.

[0041] Furthermore, the cutting plate 5 and the pressing plate 7 are made of insulating materials to effectively prevent the blade 6 from shaking due to the electrification of the film surface.

[0042] In the description of this patent, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "longitudinal", "horizontal" and the like indicate the orientation or position relationship based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing this patent and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation of this patent.

Claims

1. A slitting device for producing composite copper foil, characterized in that: It includes a fixing unit, a positioning unit, a supporting unit and a cutting unit; The fixing unit comprises two support seats (1) connected to an unwinding machine (11) of a water electroplating device, and an optical axis (2) arranged between the two support seats (1); The positioning unit comprises two positioning rings (3) movably sleeved on the optical axis (2), and a limiting device for limiting the positioning rings (3) on the optical axis (2); The support unit comprises a support plate (4) which is sleeved on the optical axis (2) and is respectively arranged on one side of the two positioning rings (3) close to each other; The slitting unit comprises a cutting plate (5) detachably arranged on a side where the two support plates (4) are close to each other, a blade (6) detachably arranged on a side where the two cutting plates (5) are close to each other, and a pressing plate (7) detachably arranged on a side where the two blades (6) are close to each other.

2. A slitting device for producing composite copper foil according to claim 1, characterized in that: The limiting device comprises a first screw hole (8) arranged on the positioning collar (3), a second screw hole arranged on the optical axis (2) and adapted to the first screw hole (8), and a first bolt arranged between the first screw hole (8) and the second screw hole.

3. A slitting device for producing composite copper foil according to claim 1, characterized in that: The cutting plate (5) and the supporting plate (4) are connected via a second bolt (9).

4. A slitting device for producing composite copper foil according to claim 3, characterized in that: The cutting plate (5) is provided with an arc-shaped groove, and the second bolt (9) is arranged in the arc-shaped groove.

5. The slitting device for producing composite copper foil according to claim 1, characterized in that: The knife pressing plate (7), the blade (6) and the cutting plate (5) are connected via a third bolt (10).

6. A slitting device for producing composite copper foil according to claim 1, characterized in that: The cutting plate (5) and the pressing plate (7) are made of insulating materials.

7. A slitting device for producing composite copper foil according to claim 1, characterized in that: It also comprises a waste edge processing unit, which comprises a servo motor (51) and a 3-inch air expansion shaft (52).

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