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CN-224216575-U - Visual inspection device

CN224216575UCN 224216575 UCN224216575 UCN 224216575UCN-224216575-U

Abstract

The utility model relates to the technical field of product quality detection and discloses a visual detection device which comprises first visual detection equipment, a first conveying mechanism and a first light emitting mechanism, wherein the first conveying mechanism comprises a first conveying belt which is arranged on one side of the first visual detection equipment and is used for conveying a pole piece to the first visual detection equipment for detection, the first light emitting mechanism comprises a first light source which is arranged on the same side of the first visual detection equipment in the first direction and is used for backlight irradiation of the side edge of the pole piece, and the visual detection device provided by the utility model enables the first visual detection equipment to obtain a sharper image effect of the edge of the pole piece under the aid of illumination of the first light source, avoids the problem of wrong grabbing of the edge of the pole piece and improves the accuracy of visual detection.

Inventors

  • JING GANG

Assignees

  • 欣旺达动力科技股份有限公司

Dates

Publication Date
20260508
Application Date
20250522

Claims (10)

  1. 1. A visual inspection device for inspecting a pole piece (2), the visual inspection device having a first direction (Z) and a second direction (X), the first direction (Z) and the second direction (X) being perpendicular, the pole piece (2) having opposing first and second surfaces (201, 202) in the first direction (Z), the pole piece (2) having a side (21) in the second direction (X), the visual inspection device comprising: -a first visual detection device (3) for detecting the first surface (201) of the pole piece (2); The first conveying mechanism (1) comprises a first conveying belt (11), wherein the first conveying belt (11) is arranged on one side of the first visual detection device (3) in the first direction (Z) and is used for conveying the pole piece (2) to the first visual detection device (3) for detection; The first light emitting mechanism (4) comprises a first light source (41), the first light source (41) and the first conveying belt (11) are positioned on the same side of the first visual detection device (3) in the first direction (Z), and the first light source (41) is used for backlight irradiation of the side edge (21) of the pole piece (2).
  2. 2. The visual inspection device according to claim 1, wherein the first conveyor belt (11) is provided with a first air hole (111) penetrating therethrough, and the first conveyor belt (11) encloses a first installation space (112); The visual inspection device further comprises a first negative pressure mechanism (5), the first negative pressure mechanism (5) comprises a first negative pressure piece (51), the first negative pressure piece (51) is arranged in the first installation space (112), the first negative pressure piece (51) is provided with a first negative pressure cavity (511), the first negative pressure piece (51) faces towards one end of the first visual inspection device (3), and a first adsorption hole (512) communicated with the first negative pressure cavity (511) is formed in the first negative pressure cavity (511).
  3. 3. The visual inspection apparatus according to claim 2, characterized in that, along the first direction (Z), a first mounting groove (513) is concavely provided in a direction away from the first visual inspection device (3) toward an end of the first negative pressure member (51) toward the first visual inspection device (3), and the first light source (41) is mounted in the first mounting groove (513).
  4. 4. A visual inspection apparatus according to claim 3, characterized in that the visual inspection apparatus further has a third direction (Y), the first direction (Z) and the second direction (X) forming a first plane perpendicularly, the third direction (Y) being perpendicular to the first plane; The first light emergent mechanism (4) further comprises a first shading piece (42) and a second shading piece (43), the first shading piece (42) is connected to the first negative pressing piece (51), the second shading piece (43) is connected to the first negative pressing piece (51) and is arranged at intervals with the first shading piece (42), the third direction (Y) is followed, the first shading piece (42) is close to one end of the second shading piece (43) and one end of the second shading piece (43) is close to the first shading piece (42), a first narrow gap (421) communicated with the first mounting groove (513) is formed between the first shading piece and one end of the second shading piece (43), the first narrow gap (421) is located between the first light source (41) and the first visual detection device (3) in the first direction (Z).
  5. 5. The visual inspection device of claim 4, wherein the first light extraction mechanism (4) further comprises a first light transmissive member (44), the first light transmissive member (44) being disposed within the first mounting slot (513) and between the first light source (41) and the first narrow gap (421).
  6. 6. The visual inspection apparatus according to claim 5, wherein a first mounting hole (514) communicating with the first mounting groove (513) is provided in a side wall of the first negative pressure member (51), and the first light-transmitting member (44) can enter and exit the first mounting groove (513) through the first mounting hole (514).
  7. 7. The visual inspection apparatus according to claim 1, wherein the first visual inspection device (3) includes a device body (31) and a line camera (32), the device body (31) being provided on one side of the first conveying mechanism (1) in the first direction (Z), the line camera (32) being connected to the device body (31) and being used for photographing the pole piece (2).
  8. 8. The visual inspection apparatus according to claim 1, further comprising a second conveying mechanism (6) and a second visual inspection device (9), the second visual inspection device (9) being configured to inspect a second surface (202) of the pole piece (2), the second conveying mechanism (6) comprising a second conveyor belt (61), the second conveyor belt (61) being provided on one side of the second visual inspection device (9) in the first direction (Z) and being configured to convey the pole piece (2) to the second visual inspection device (9) for inspection.
  9. 9. Visual inspection apparatus according to claim 8, characterized in that the second conveyor belt (61) and the first visual inspection device (3) are located on the same side of the first conveyor belt (11) in the first direction (Z), the second visual inspection device (9) and the first conveyor belt (11) being located on the same side of the second conveyor belt (61) in the first direction (Z).
  10. 10. The visual inspection device of claim 9, wherein the first conveyor belt (11) and the second conveyor belt (61) partially overlap along the first direction (Z), wherein a first surface (201) of the pole piece (2) is attached to the first conveyor belt (11) and a second surface (202) of the pole piece (2) is attached to the second conveyor belt (61) when the pole piece (2) is placed at an overlapping location of the first conveyor belt (11) and the second conveyor belt (61).

Description

Visual inspection device Technical Field The utility model relates to the technical field of product quality detection, in particular to a visual detection device. Background The battery pole piece is a core component and an important component of the battery, and the coating quality of the anode and cathode materials of the battery pole piece determines the performance of the battery. The coated battery pole piece may have surface defects such as crease lines, damage, cracks, leakage marks, breakage and the like, the light surface defects affect the charge and discharge performance and the service life of the battery, and the heavy surface defects are buried with potential safety hazards, so that huge personal and property losses can be caused. Aiming at the possible defects of the battery pole piece in the coating process, a visual detection device is required to be introduced into the battery pole piece in the manufacturing process to carry out visual detection on the coated pole piece, the defective pole piece is selected out, and the high quality of the battery is ensured. Disclosure of utility model The utility model aims to at least solve one of the technical problems in the prior art, and the utility model aims to provide a visual detection device which can obtain an image effect of a sharper pole piece edge and improve the accuracy of visual detection. In order to achieve the above object, the utility model provides a visual inspection device for inspecting a pole piece, the visual inspection device comprises a first direction and a second direction, the first direction is perpendicular to the second direction, the pole piece comprises a first surface and a second surface which are opposite to each other in the first direction, the pole piece comprises a side edge in the second direction, the visual inspection device comprises a first visual inspection device, a first conveying mechanism and a first light emitting mechanism, the first visual inspection device is used for inspecting the first surface of the pole piece, the first conveying mechanism comprises a first conveying belt, the first conveying belt is arranged on one side of the first visual inspection device in the first direction and is used for conveying the pole piece to the first visual inspection device for inspection, the first light emitting mechanism comprises a first light source, the first light source and the first conveying belt are located on the same side of the first visual inspection device in the first direction, and the first light source is used for illuminating the side edge of the pole piece in a backlight. In some embodiments, the first conveyor belt is provided with a first air hole penetrating through the first conveyor belt, a first installation space is surrounded by the first conveyor belt, the visual inspection device further comprises a first negative pressure mechanism, the first negative pressure mechanism comprises a first negative pressure piece, the first negative pressure piece is arranged in the first installation space, the first negative pressure piece is provided with a first negative pressure cavity, and a first adsorption hole communicated with the first negative pressure cavity is formed in the first negative pressure piece towards one end of the first visual inspection device along the first direction. In some embodiments, along the first direction, a first mounting groove is concavely formed in one end of the first negative pressure piece, which faces the first visual inspection device, in a direction away from the first visual inspection device, and the first light source is mounted in the first mounting groove. In some embodiments, the visual inspection device further comprises a third direction, the first direction and the second direction are perpendicular to form a first plane, the third direction is perpendicular to the first plane, the first light emitting mechanism further comprises a first light shielding piece and a second light shielding piece, the first light shielding piece is connected to the first negative pressing piece, the second light shielding piece is connected to the first negative pressing piece and is arranged at intervals with the first light shielding piece, a first narrow gap communicated with the first mounting groove is formed between one end, close to the second light shielding piece, of the first light shielding piece and one end, close to the first light shielding piece, of the second light shielding piece, and the first narrow gap is located between the first light source and the first visual inspection device along the first direction. In some embodiments, the first light-emitting mechanism further includes a first light-transmitting member disposed in the first mounting groove and between the first light source and the first narrow gap. In some embodiments, a first mounting hole communicated with the first mounting groove is formed in the side wall of the first n