Following type synchronous hobbing device

Abstract

The utility model discloses a following type synchronous rolling cutting device which comprises a rolling cutting base, a linear following track parallel to a flat pressing type pole piece driving channel is arranged on the rolling cutting base, and at least one rolling cutting sliding seat in sliding fit with the linear following track is installed on the linear following track. A hobbing assembly which can move in the horizontal direction perpendicular to the linear following track and is used for hobbing the pole piece strip to obtain the pole piece is mounted on the hobbing sliding seat; the hobbing assembly comprises a hobbing cutter base and a hobbing cutter support, and the hobbing cutter base is installed on the hobbing cutter sliding base. A feeding rail perpendicular to the linear following rail is arranged on the hob base, and the hob support is installed on the feeding rail in a sliding fit mode. The hobbing cutter support is provided with two oppositely-arranged hobbing cutter seats, a receding gap is formed between the two hobbing cutter seats, two hobbing cutters which are located on the two sides of the receding gap respectively and matched with each other are arranged at the front ends of the two hobbing cutter seats, and hobbing driving mechanisms for driving the corresponding hobbing cutters to rotate are arranged on the hobbing cutter seats.

Description

Technical Field

[0001] This utility model belongs to the field of electrode rolling cutting technology, specifically a follow-up synchronous rolling cutting device. Background Technology

[0002] There are two main production processes for battery cells: winding and stacking. In the winding process, electrode strips and separator strips are combined and then wound to form the cell. In the stacking process, the electrode strips are first cut into sheet materials of a set size, and then stacked using a Z-shaped or folded method to produce the cell. Currently, stamping and shearing are commonly used to cut the electrode strips into sheet materials. While this meets some requirements, the stamping and shearing tools are prone to wear. When these tools wear out, metal burrs easily form at the cut ends of the sheet materials, requiring frequent maintenance and replacement of the shearing tools, which significantly disrupts production. These metal burrs are difficult to remove, and after stacking to form the cell, they can easily cause internal short circuits, resulting in low product yield and safety risks during charging and discharging. Utility Model Content

[0003] Roll cutting of electrode sheets can effectively reduce burr generation. However, in battery stacking production lines, to improve production efficiency, electrode strips and sheets need to be continuously and rapidly conveyed. Traditional stationary roll cutting devices cannot meet these requirements. Therefore, the purpose of this invention is to provide a following synchronous roll cutting device.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A follower-type synchronous rolling cutting device includes a rolling cutting base, on which a linear follower track parallel to the flat-pressure electrode driving channel is provided. At least one rolling cutting slide is installed on the linear follower track and is slidably engaged therewith. A rolling cutting assembly is installed on the rolling cutting slide that can move along a horizontal direction perpendicular to the linear follower track and is used to roll cut the electrode strip to obtain an electrode.

[0006] The rolling cutter assembly includes a rolling cutter base and a rolling cutter support. The rolling cutter base is mounted on the rolling cutter slide. The rolling cutter base is provided with a feed rail perpendicular to the linear following rail. The rolling cutter support is slidably mounted on the feed rail.

[0007] The hobbing cutter support is equipped with two hobbing cutter seats arranged opposite to each other, with a clearance gap between the two hobbing cutter seats. The front ends of the two cutter seats are provided with two hobbing cutters located on both sides of the clearance gap and cooperating with each other. The hobbing cutter seat is provided with a hobbing drive mechanism that drives the corresponding hobbing cutter to rotate.

[0008] Furthermore, the rolling drive mechanism includes a rolling motor installed at the rear end of the rolling cutter holder, and the rolling motor and the rolling cutter are connected by a synchronous belt mechanism.

[0009] Furthermore, the synchronous belt mechanism is equipped with a tensioning pulley assembly.

[0010] Furthermore, the synchronous belt mechanism includes a driving synchronous pulley and a driven synchronous pulley. The shaft of the driving synchronous pulley is perpendicular to the output shaft of the rolling motor, and the shaft of the driving synchronous pulley and the output shaft of the rolling motor are connected by a helical gear transmission.

[0011] Furthermore, the shaft of the driven synchronous pulley is parallel to the shaft of the hob, and the shaft of the driven synchronous pulley and the shaft of the hob are connected by a gear transmission mechanism.

[0012] Furthermore, the hob holder is provided with a chip removal assembly for chip removal.

[0013] Furthermore, the chip removal assembly includes a negative pressure suction hood disposed within the cutter holder, with the suction port of the negative pressure suction hood facing the cutter.

[0014] Furthermore, the chip removal assembly also includes a side suction hood disposed within the cutter holder. The side suction hood and the negative pressure suction hood are respectively disposed on both sides of the cutter, and the suction cover of the side suction hood is disposed on the edge of the cutter.

[0015] Furthermore, the hob base is provided with a position detection sensor, which is used to detect the position of the hob support moving along the feed track.

[0016] Furthermore, a speed detection sensor is provided on the hob base, which is used to detect the relative speed between the hob support and the electrode.

[0017] The beneficial effects of this utility model are as follows:

[0018] The following synchronous rolling cutting device of this utility model, during the movement of the electrode strip, drives the rolling cutting component to move synchronously with the electrode strip along a straight following track and align it with the rolling cutting position of the electrode strip. Then, the rolling cutting component moves along the rolling cutting position in a direction perpendicular to the straight following track to perform rolling cutting operation on the electrode strip until the electrode strip is cut and electrode sheet is obtained. After that, the rolling cutting component withdraws along the rolling cutting position and finally returns to its original position along the straight following track. In summary, the following synchronous rolling cutting device of this utility model can meet the usage requirements for rolling cutting operation of electrode strip in battery stacking production line. Attached Figure Description

[0019] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the following drawings are provided for illustration:

[0020] Figure 1 This is a schematic diagram of the structure of a follow-type synchronous rolling cutter;

[0021] Figure 2 This is a schematic diagram of the roll-cutting assembly;

[0022] Figure 3 for Figure 2 AA section view;

[0023] Figure 4 for Figure 3 BB cross-sectional view.

[0024] Explanation of reference numerals in the attached figures:

[0025] 21-Rolling base; 22-Linear following track; 23-Rolling slide; 24-Rolling cutter base; 241-Feed track; 25-Rolling cutter bracket; 26-Rolling cutter holder; 27-Leave clearance; 28-Rolling cutter; 29-Rolling motor; 30-Driving synchronous pulley; 31-Driven synchronous pulley; 32-Synchronous belt; 33-Tensioning pulley assembly; 34-Helical gear; 35-Gear transmission mechanism; 36-Negative pressure suction hood; 37-Side suction hood; 38-Position detection sensor; 39-Speed ​​detection sensor. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0027] like Figure 1 As shown, in this embodiment, the following synchronous rolling cutting device includes a rolling cutting base 21. The rolling cutting base 21 is provided with a linear following track 22 parallel to the flat-pressure electrode driving channel. At least one rolling cutting slide 23 is installed on the linear following track 22 and is slidably engaged with it. A rolling cutting component is installed on the rolling cutting slide 23, which can move along a horizontal direction perpendicular to the linear following track 22 and is used to roll cut the electrode strip to obtain the electrode.

[0028] like Figure 2-4As shown, in this embodiment, the rolling cutter assembly includes a rolling cutter base 24 and a rolling cutter support 25. The rolling cutter base 24 is mounted on the rolling cutter slide 21. The rolling cutter base 24 is provided with a feed rail 241 perpendicular to the linear following rail, and the rolling cutter support 25 is slidably mounted on the feed rail 241. Two oppositely arranged rolling cutter seats 26 are mounted on the rolling cutter support 25, forming a clearance gap 27 between the two rolling cutter seats 26. The front ends of the two cutter seats 26 are provided with two rolling cutters 28 located on both sides of the clearance gap and cooperating with each other. The rolling cutter seats 26 are provided with a rolling cutter drive mechanism for driving the corresponding rolling cutter to rotate.

[0029] In this embodiment, the rolling drive mechanism includes a rolling motor 29 mounted at the rear end of the rolling cutter holder 26. The rolling motor 29 and the rolling cutter 28 are connected by a synchronous belt mechanism. The synchronous belt mechanism in this embodiment is provided with a tensioning pulley assembly 33. Specifically, the synchronous belt mechanism includes a driving synchronous pulley 30, a driven synchronous pulley 31, and a synchronous belt 32 sleeved between the driving synchronous pulley 30 and the driven synchronous pulley 31.

[0030] In this embodiment, the shaft of the driving synchronizing pulley 30 is perpendicular to the output shaft of the hobbing motor 29, and the shaft of the driving synchronizing pulley 30 and the output shaft of the hobbing motor 29 are connected by a helical gear 34. In this embodiment, the shaft of the driven synchronizing pulley 31 is parallel to the shaft of the hob 28, and the shaft of the driven synchronizing pulley 31 and the shaft of the hob 28 are connected by a gear transmission mechanism 35.

[0031] In this embodiment, the cutter holder 26 is equipped with a chip removal assembly for chip removal. Specifically, the chip removal assembly includes a negative pressure suction hood 36 disposed within the cutter holder 26, with the suction port of the negative pressure suction hood 36 facing the cutter 28. The chip removal assembly in this embodiment also includes a side suction hood 37 disposed within the cutter holder 26. The side suction hood 37 and the negative pressure suction hood 36 are respectively disposed on both sides of the cutter 28, and the suction hood of the side suction hood 37 is disposed on the edge of the cutter 29. In this embodiment, the negative pressure suction hood 36 is disposed between the driving synchronous pulley 30 and the driven synchronous pulley 31, and the negative pressure suction hood 36 has a clearance notch for accommodating the synchronous belt 32.

[0032] In a preferred embodiment of this invention, a position detection sensor 38 is provided on the hob base 24. The position detection sensor 38 is used to detect the position of the hob support 25 moving along the feed track 241. At least two position detection sensors 38 are provided, one of which is used to detect the position of the hob support 25 feeding along the feed track 241, and the other is used to detect the position of the hob support 25 retracting and resetting along the feed track 241.

[0033] In a preferred embodiment of this example, a speed detection sensor 39 is provided on the roller cutter base 24. The speed detection sensor 39 is used to detect the relative speed between the roller cutter support 25 and the electrode, ensuring that the speed between the roller cutter support 25 and the electrode remains consistent during the rolling process, that is, the relative speed between the roller cutter support 25 and the electrode is zero.

[0034] The above-described embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. A follow-type synchronous rolling cutting device, characterized in that: The device includes a rolling base, on which a linear following track parallel to the flat-press electrode driving channel is provided. At least one rolling slide is mounted on the linear following track and is slidably engaged therewith. A rolling assembly is mounted on the rolling slide that can move along a horizontal direction perpendicular to the linear following track and is used to roll-cut the electrode strip to obtain an electrode. The rolling cutter assembly includes a rolling cutter base and a rolling cutter support. The rolling cutter base is mounted on the rolling cutter slide. The rolling cutter base is provided with a feed rail perpendicular to the linear following rail. The rolling cutter support is slidably mounted on the feed rail. The roller cutter bracket is equipped with two roller cutter seats arranged opposite to each other, and a clearance gap is formed between the two roller cutter seats. The front ends of the two roller cutter seats are provided with two roller cutters located on both sides of the clearance gap and cooperating with each other. The roller cutter seat is provided with a roller cutting drive mechanism for driving the corresponding roller cutter to rotate.

2. The following synchronous rolling cutting device according to claim 1, characterized in that: The rolling drive mechanism includes a rolling motor installed at the rear end of the rolling cutter holder, and the rolling motor and the rolling cutter are connected by a synchronous belt mechanism.

3. The following synchronous rolling cutting device according to claim 2, characterized in that: The synchronous belt mechanism is equipped with a tensioning pulley assembly.

4. The following synchronous rolling cutting device according to claim 2, characterized in that: The synchronous belt mechanism includes a driving synchronous pulley and a driven synchronous pulley. The shaft of the driving synchronous pulley is perpendicular to the output shaft of the rolling motor, and the shaft of the driving synchronous pulley and the output shaft of the rolling motor are connected by a helical gear transmission.

5. The following synchronous rolling cutting device according to claim 4, characterized in that: The driven synchronous pulley's shaft is parallel to the hob's shaft, and the driven synchronous pulley's shaft and the hob's shaft are connected by a gear transmission mechanism.

6. The following synchronous rolling cutting device according to claim 1, characterized in that: The hob holder is equipped with a chip removal component for chip removal.

7. The following synchronous rolling cutting device according to claim 6, characterized in that: The chip removal assembly includes a negative pressure suction hood disposed within the cutter holder, with the suction port of the negative pressure suction hood facing the cutter.

8. The following synchronous rolling cutting device according to claim 7, characterized in that: The chip removal assembly also includes a side suction hood disposed within the cutter holder. The side suction hood and the negative pressure suction hood are respectively disposed on both sides of the cutter, and the suction hood of the side suction hood is disposed on the edge of the cutter.

9. The following synchronous rolling cutting device according to claim 1, characterized in that: The hob base is equipped with a position detection sensor, which is used to detect the position of the hob support moving along the feed track.

10. The following synchronous rolling cutting device according to claim 1, characterized in that: The hob base is equipped with a speed detection sensor, which is used to detect the relative speed between the hob support and the electrode.

Images