CN-224231648-U - Pole piece cutting detection device

CN224231648UCN 224231648 UCN224231648 UCN 224231648UCN-224231648-U

Abstract

The application discloses a pole piece slitting detection device which comprises a base, an offset detection piece and a camera component, wherein the camera component is arranged on the base and is positioned on a first side of a pole piece to be detected, the camera component comprises a camera and a first light source component, the camera is configured to carry out photographing on a slitting surface of the pole piece to be detected, the first light source component is configured to carry out light supplementing on the first side of the pole piece to be detected when the camera photographs, the offset detection piece is arranged on a moving path of the pole piece to be detected after slitting, a lens of the camera is a liquid lens, the offset detection piece is configured to detect the offset of the pole piece to be detected in a first horizontal direction before photographing by the camera and send the detected offset to the camera, and the camera is further configured to carry out zooming on the liquid lens through current control according to the offset.

Inventors

HOU XIAOFENG
ZHU LEI
ZHANG CHI

Assignees

上海感图网络科技有限公司
深圳酷眸科技有限公司

Dates

Publication Date: 20260512
Application Date: 20250516

Claims (10)

1. The utility model provides a detection device is cut to pole piece, its characterized in that, detection device is cut to pole piece includes base, skew detection spare and camera subassembly, wherein: The camera component is arranged on the base and is positioned on the first side of the pole piece to be detected after cutting, the camera component comprises a camera and a first light source component, the camera is configured to take pictures of the cut surfaces of the pole piece to be detected after cutting, the first light source component is arranged between the pole piece to be detected and the camera, and the first light source component is configured to supplement light on the first side of the pole piece to be detected when the camera takes pictures; The offset detection piece is arranged on the moving path of the pole piece to be detected after slitting, the lens of the camera is a liquid lens, the offset detection piece is configured to detect the offset of the pole piece to be detected in the first horizontal direction before photographing by the camera and send the detected offset to the camera, and the camera is further configured to zoom the liquid lens through current control according to the offset, and the first horizontal direction is the width direction of the pole piece to be detected.
2. The pole piece slitting detection device of claim 1, wherein the pole piece to be detected is a continuous sheet moving along its path of travel.
3. The pole piece slitting detection device according to claim 2, wherein the base is provided with a passage for passing the pole piece to be detected after slitting, and the passage extends along the first horizontal direction.
4. The pole piece slitting detection device according to claim 1, wherein the offset detection member is a deviation correcting sensor mounted on the base and located on a first side of the pole piece to be detected after slitting.
5. The pole piece slitting detection device of claim 1, wherein the liquid lens extends along the first horizontal direction.
6. The pole piece slitting detection device according to claim 1, wherein the camera assembly further comprises a prism, the liquid lens extends along a second horizontal direction, the prism is disposed at a shooting end of the liquid lens, the first light source assembly is disposed between the pole piece to be detected and the prism, the prism is configured to deflect a shooting light path of the camera by 90 ° and then perform shooting, and the first horizontal direction is perpendicular to the second horizontal direction.
7. The pole piece slitting detection device of claim 1, further comprising a second light source assembly mounted on the base and positioned on a second side of the pole piece to be detected after slitting, the second light source assembly configured to supplement light on the second side of the pole piece to be detected when the camera takes a picture.
8. The pole piece slitting detection device of claim 7, wherein the second light source assembly comprises a backlight source and two strip light sources, wherein: The backlight source is vertically arranged on the base and positioned at the outer sides of the two strip-shaped light sources; The two strip-shaped light sources are vertically arranged on the base and are arranged at intervals along a second horizontal direction, and the first horizontal direction is perpendicular to the second horizontal direction.
9. The pole piece slitting detection device according to claim 1, wherein the first light source assembly includes an annular light source, the annular light source being adjustable in mounting position on the base along the first horizontal direction.
10. The pole piece slitting detection device according to claim 1, wherein an adjustment base is adjustably mounted on the base along the first horizontal direction, the camera is adjustably mounted on the adjustment base along the second horizontal direction and the height direction, and the first horizontal direction is perpendicular to the second horizontal direction.

Description

Pole piece cutting detection device Technical Field The application belongs to the technical field of lithium battery pole piece detection, and particularly relates to a pole piece slitting detection device. Background In the production process of the lithium battery, the coated positive electrode plate and the coated negative electrode plate are required to be cut, and the cutting is usually carried out at the middle position of an electrode plate coiled material with a large width, and one electrode plate is cut into a plurality of electrode plates with equal width (for example, two electrode plates or four electrode plates and the like). However, in the pole piece cutting process, due to the reasons of high cutting speed, blade abrasion, metal characteristics of aluminum and copper and the like, burrs may be generated on the cutting surface of the pole piece cutting line, and defects such as aluminum scraps, copper scraps, powder falling and the like may be generated near the cutting surface and the front and back surfaces of the pole piece, so that the problems easily cause short circuit between the cathode and the anode of the battery, and the safe use of the battery is affected. Therefore, in the pole piece slitting process, the pole piece needs to be visually detected by an automatic detection device, and the Chinese patent with the publication number of CN117086494A and the name of a die cutting slitting system and a die cutting slitting visual detection method discloses a detection device used after the pole piece is die cut and slit, but the detection device can only detect defects on the front side and the back side of the pole piece after slitting and cannot detect the defects on the slitting surface of a pole piece cutting line. Disclosure of utility model The application aims to provide a pole piece slitting detection device, which is used for solving the problem that the existing detection device used for pole piece slitting cannot detect defects on the slitting surface of a pole piece cutting line. To achieve the purpose, the application adopts the following technical scheme: The application provides a pole piece slitting detection device, which comprises a base, an offset detection piece and a camera component, wherein: The camera component is arranged on the base and is positioned on the first side of the pole piece to be detected after cutting, the camera component comprises a camera and a first light source component, the camera is configured to take pictures of the cut surfaces of the pole piece to be detected after cutting, the first light source component is arranged between the pole piece to be detected and the camera, and the first light source component is configured to supplement light on the first side of the pole piece to be detected when the camera takes pictures; The offset detection piece is arranged on the moving path of the pole piece to be detected after slitting, the lens of the camera is a liquid lens, the offset detection piece is configured to detect the offset of the pole piece to be detected in the first horizontal direction before photographing by the camera and send the detected offset to the camera, and the camera is further configured to zoom the liquid lens through current control according to the offset, and the first horizontal direction is the width direction of the pole piece to be detected. Optionally, the pole piece to be detected is a continuous sheet moving along a moving path thereof. Optionally, the base is provided with a channel for passing the pole piece to be detected after cutting, and the channel extends along the first horizontal direction. Optionally, the offset detection part is a correction sensor, and the correction sensor is installed on the base and located on the first side of the pole piece to be detected after slitting. Optionally, the liquid lens extends along the first horizontal direction. Optionally, the camera assembly further includes a prism, the liquid lens extends along a second horizontal direction, the prism is disposed at a shooting end of the liquid lens, the first light source assembly is disposed between the pole piece to be detected and the prism, the prism is configured to deflect a shooting light path of the camera by 90 ° and then perform shooting, and the first horizontal direction is perpendicular to the second horizontal direction. Optionally, the pole piece slitting detection device further includes a second light source assembly, the second light source assembly is mounted on the base and located on a second side of the pole piece to be detected after slitting, and the second light source assembly is configured to perform light supplementing on the second side of the pole piece to be detected when the camera photographs. Optionally, the second light source assembly includes a backlight and two strip light sources, wherein: The backlight source is vertically arranged on the base and positioned at the outer sides o