Compatible outer fillet die cutting device

Abstract

The utility model relates to the technical field of pole piece round corner die cutting, in particular to a compatible type outer round corner die cutting device, in the using process, corners to be punched of pole pieces sequentially stretch out of a conveying belt, then outer round corner punching is carried out, outer round corners are machined, the compatible type outer round corner die cutting device can adapt to pole pieces with different lengths, repeated replacement of the conveying belt with the proper width is avoided, and production efficiency is improved. And the working efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pole piece fillet die cutting, in particular to a compatible outer fillet die cutting device. Background Art

[0002] In the process of making battery pole pieces, rolled pole pieces are usually cut to form sheet-shaped pole pieces, which are then transported by a negative pressure conveyor belt to the outer rounded corner die-cutting device for rounded corner processing. In the process of rounded corner processing, a negative pressure conveyor belt of appropriate width is selected in advance according to the length of the pole piece, so that the pole piece crosses the negative pressure conveyor belt, and the four corners that need to be processed at both ends of the pole piece extend out of the negative pressure conveyor belt, and then when passing through the outer rounded corner die-cutting device next to the negative pressure conveyor belt, the rounded corners are formed under the action of the upper and lower pressure cutting of the mold. Although this conventional rounded corner processing method is relatively convenient, due to the difference in pole piece length, it is necessary to replace negative pressure conveyor belts of different widths to meet the processing requirements. The replacement process of the negative pressure conveyor belt is relatively cumbersome, resulting in reduced work efficiency, so it needs to be solved urgently. Utility Model Content

[0003] In order to avoid and overcome the technical problems existing in the prior art, the utility model provides a compatible outer round corner die cutting device. The utility model can adapt to pole pieces of different lengths and greatly improve the work efficiency.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A compatible outer rounded corner die-cutting device comprises negative pressure conveyor belts which are arranged alternately left and right along a pole piece conveying path, so that the corners to be punched of the pole piece moving with each negative pressure conveyor belt are sequentially in a suspended state extending out from the edge of the current negative pressure conveyor belt; an outer rounded corner die-cutting mold for rounding the corners to be punched of the pole piece in a suspended state is arranged at the edge of each negative pressure conveyor belt.

[0006] As a further solution of the utility model: adjacent negative pressure conveyor belts form overlapping parts for supporting the electrode sheets along the electrode sheet conveying path, and adjacent negative pressure conveyor belts can move relative to each other in a direction vertical to the electrode sheet conveying path to adjust the width of the overlapping parts.

[0007] As a further solution of the utility model: it comprises a guide rail installed on the work surface, the length direction of the guide rail is perpendicular to the pole piece conveying path; a slide plate is slidably installed on the guide rail, and the negative pressure conveyor belt is installed on the slide plate.

[0008] As a further solution of the utility model: the upper belt surfaces of each negative pressure conveyor belt are all located in the same horizontal plane.

[0009] As a further solution of the utility model: the height of the upper belt surface of each negative pressure conveyor belt decreases in a step-like manner along the pole piece conveying path.

[0010] As a further solution of the utility model: the outer rounded corner die-cutting mold includes a lower cutter and an upper cutter that are close to each other in the vertical direction to cut off the edge of the pole piece, and the blades of the upper cutter and the lower cutter are both rounded.

[0011] As a further solution of the utility model: the negative pressure conveyor belt is set into two groups, namely the first negative pressure conveyor belt and the second negative pressure conveyor belt; and industrial cameras for photographing the position of the pole piece are arranged above the first negative pressure conveyor belt and the second negative pressure conveyor belt, so that the pole piece is in the punching position of the outer round corner die-cutting mold.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. During the use of the utility model, the outer corners are processed by making the corners of the pole piece to be punched extend out of the conveyor belt in turn, and then the outer corners are punched. This can adapt to pole pieces of different lengths, avoid repeated replacement of conveyor belts with suitable widths, and greatly improve work efficiency.

[0014] 2. The first negative pressure conveyor belt and the second negative pressure conveyor belt of the utility model are connected to each other. When the pole piece moves to the tail end of the first negative pressure conveyor belt, one side of the pole piece overlaps the first negative pressure conveyor belt, and the other side of the pole piece overlaps the second negative pressure conveyor belt. The pole piece will gradually transition to the front end of the second negative pressure conveyor belt. This smooth transition method can reduce the deviation of the pole piece conveying position, especially the deviation of the pole piece angle, so that the four outer round corner molds can ensure a high outer round corner dimensional accuracy without angle correction.

[0015] 3. The two rounded corner die-cuttings of the utility model are both performed by positioning and correcting the two corners on the opposite sides of the pole piece before die-cutting, which can effectively improve the accuracy of die-cutting and make the rounded corner die-cutting method compatible with larger sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] In the figure: 1. Feeding assembly; 11. Pole roll feeder; 12. Cutter; 2. Outer round corner die-cutting mold; 21. Right front outer round corner mold; 22. Right rear outer round corner mold; 23. Left rear outer round corner mold; 24. Left front outer round corner mold; 3. Feeding assembly; 31. First negative pressure conveyor belt; 32. Second negative pressure conveyor belt; 33. Industrial camera. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0019] See also Figure 1 In the embodiment of the utility model, a feeding component 1 is firstly arranged at the feeding end of the feeding component 3, and a corresponding outer round corner die-cutting die 2 is installed beside the feeding component 3.

[0020] The feeding assembly 1 includes a conventional electrode roll feeder 11, and a cutter 12 is arranged at the discharge port of the electrode roll feeder 11. The rolled electrode is installed in the electrode roll feeder 11, and under the action of the pressure roller in the electrode roll feeder 11, the electrode is continuously sent to the cutter 12, and the cutter 12 cuts the electrode roll into a rectangular shape in sequence, and then the electrode ear is attached to the rectangular electrode under the processing of the electrode ear mounting machine, and then sent to the feeding assembly 3.

[0021] The feeding assembly 3 includes a first negative pressure conveyor belt 31 and a second negative pressure conveyor belt 32 which are sequentially arranged along the electrode conveying path, and the first negative pressure conveyor belt 31 and the second negative pressure conveyor belt 32 are distributed on both sides of the electrode conveying path. An overlapping portion is formed between the two, and the width of the overlapping portion is less than the length of the electrode. The electrode conveying path is usually a straight path, and the length direction of the overlapping portion is parallel to the direction of the electrode conveying path. The first negative pressure conveyor belt 31 and the second negative pressure conveyor belt 32 are both arranged on corresponding slides, which are slidably mounted on the guide rails. By moving and locking the slides, the width of the overlapping portion is adjusted to accommodate electrodes of different lengths.

[0022] The pole piece first falls onto the first negative pressure conveyor belt 31, and at this time the length direction of the pole piece is parallel to the width direction of the first negative pressure conveyor belt 31. The right end of the pole piece extends out of the first negative pressure conveyor belt 31 and is in a suspended state; about two-thirds of the length of the pole piece is located on the negative pressure conveyor belt, and one-third of the length extends out of the negative pressure conveyor belt. The extended length is appropriate and will not cause excessive sagging of the extended end of the pole piece. The pole piece moves along the first negative pressure conveyor belt 31 on the first negative pressure conveyor belt 31. At this time, the industrial camera 33 located above the first negative pressure conveyor belt 31 takes a picture of the pole piece, and then the data analysis terminal adjusts the position of the right front outer round corner mold 21 and the right rear outer round corner mold 22 installed on the right side of the first negative pressure conveyor belt 31 in real time according to the position and size of the photographed pole piece, so that when the pole piece enters the punching position in the position of the right front outer round corner mold 21 and the right rear outer round corner mold 22, the right front right angle and the right rear right angle of the pole piece can be punched into outer round corners. The punching action is fast, and the upper and lower cutters open and close instantly to complete the punching work.

[0023] The pole piece that has completed the rounded corner punching work at the first negative pressure conveyor belt 31 continues to move with the first negative pressure conveyor belt 31. When the pole piece moves to the tail end of the first negative pressure conveyor belt 31, one side of the pole piece overlaps the first negative pressure conveyor belt 31, and the other side of the pole piece overlaps the second negative pressure conveyor belt 32. The pole piece will gradually transition to the front end of the second negative pressure conveyor belt 32. At this time, the left end of the pole piece is in a suspended state extending out of the second negative pressure conveyor belt 32. The pole piece moves on the second negative pressure conveyor belt 32 in the same way as it moves on the first negative pressure conveyor belt 31. At this time, the industrial camera 33 on the second negative pressure conveyor belt 32 takes a picture. Then, the data analysis terminal adjusts the position of the left front outer round corner mold 24 and the left rear outer round corner mold 23 installed on the left side of the second negative pressure conveyor belt 32 in real time according to the position and size of the photographed pole piece. In this way, when the pole piece enters the punching position of the left front outer round corner mold 24 and the left rear outer round corner mold 23, the left front right angle and the left rear right angle of the pole piece can be punched into outer round corners. After the four corners are punched, the pole piece is removed and sent to the next processing step.

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A compatible rounded corner die cutting device, characterized in that: The invention comprises arranging negative pressure conveyor belts alternately on the left and right sides along the pole piece conveying path, so that the corners to be punched of the pole piece moving with each negative pressure conveyor belt are successively in a suspended state extending out of the edge of the current negative pressure conveyor belt; and an outer rounded corner die-cutting die (2) is arranged at the edge of each negative pressure conveyor belt to round off the corners to be punched of the pole piece in the suspended state.

2. A compatible rounded corner die cutting device according to claim 1, characterized in that: The negative pressure conveyor belts adjacent to each other form overlapping parts for supporting the electrode sheets along the electrode sheet conveying path, and the adjacent negative pressure conveyor belts can move relative to each other in a direction perpendicular to the electrode sheet conveying path to adjust the width of the overlapping parts.

3. A compatible rounded corner die cutting device according to claim 2, characterized in that: It comprises a guide rail installed on a work surface, the length direction of the guide rail is perpendicular to the pole piece conveying path; a slide plate is slidably installed on the guide rail, and the negative pressure conveyor belt is installed on the slide plate.

4. A compatible rounded corner die cutting device according to claim 3, characterized in that: The upper belt surfaces of each negative pressure conveyor belt are located in the same horizontal plane.

5. The compatible rounded corner die cutting device according to claim 3, characterized in that: The height of the upper belt surface of each negative pressure conveyor belt decreases in a step-like manner along the pole piece conveying path.

6. A compatible rounded corner die cutting device according to claim 5, characterized in that: The negative pressure conveyor belts are provided in two groups, namely a first negative pressure conveyor belt (31) and a second negative pressure conveyor belt (32); and industrial cameras (33) for photographing the position of the pole pieces are arranged above the first negative pressure conveyor belt (31) and the second negative pressure conveyor belt (32), so that the pole pieces are in the punching position of the rounded corner die-cutting mold (2).

7. A compatible rounded corner die cutting device according to claim 4 or 5, characterized in that: The rounded corner die-cutting die (2) comprises a lower cutter and an upper cutter which are close to each other in a vertical direction to cut off the edge of the pole piece, and the blades of the upper cutter and the lower cutter are both rounded.

Images