Automatic dispensing and glue point detection device and dispensing and detection technology thereof

Abstract

The invention discloses an automatic dispensing and glue point detection device and a dispensing and detection technology of the device. The device comprises a machine table, a transfer mechanism, a dispensing platform, a dispensing mechanism, a detection platform and a CCD mechanism. The transfer mechanism transfers electric cores to be dispensed and dispensed electric cores to the dispensing platform and the detection platform synchronously; a dispensing gun of the dispensing mechanism is aligned to an aluminum plastic film edge on one side of an electric core center line, the aluminum plastic film edge does linear motion relative to the dispensing gun, and the dispensing gun dispenses glue to the aluminum plastic film edge on one side of the electric core center line; the dispensing gunis rotated by 90 degrees to the other side of the electric core center line, and the dispensing gun carries out uniform interval dispensing on the aluminum plastic film edge on the other side; afterdispensing is finished, the CCD mechanisms scans the contour of the aluminum plastic film edge and glue points on the aluminum plastic film edge, and a code scanning assembly of the detection platformscans and records two-dimensional codes at the bottom of the electric cores. Automatic, uniform and precise dispensing is achieved for narrow edge aluminum plastic films, uniform sticking of glue isensured, the dispensing efficiency is improved, and the dispensing and follow-up encapsulation yield is improved.

Description

technical field [0001] The invention relates to the field of mechanical automation, in particular to an automatic glue dispensing and glue spot detection device and its glue dispensing and detection process. Background technique [0002] The lithium-ion secondary rechargeable battery is composed of a battery cell and a protective circuit board; the rechargeable battery removes the protective circuit board to be the battery cell; the battery cell is the storage part of the rechargeable battery; the quality of the battery cell directly determines the quality of the rechargeable battery; the battery cell It mainly includes three kinds of aluminum shell batteries, soft package batteries (also known as "polymer batteries"), and cylindrical batteries; soft package batteries generally use aluminum-plastic film as packaging materials, and the core of the battery is placed in aluminum After the inside of the film, packaging is realized through top sealing, side sealing, liquid inject...

AI Technical Summary

Problems solved by technology

[0002] The lithium-ion secondary rechargeable battery is composed of a battery cell and a protective circuit board; the rechargeable battery removes the protective circuit board to be the battery cell; the battery cell is the storage part of the rechargeable battery; the quality of the battery cell directly determines the quality of the rechargeable battery; the battery cell It mainly includes three kinds of aluminum shell batteries, soft package batteries (also known as "polymer batteries"), and cylindrical batteries; soft package batteries generally use aluminum-plastic film as packaging materials, and the core of the battery is placed in aluminum After the inside of the film, packaging is realized through top sealing, side sealing, liquid injection, pre-sealing and other processes; during the packaging process, the side of the aluminum-plastic film extends outward to the outer edge of the battery, and the extended part of the aluminum-plastic film needs to be dispensed Finally, it is bent and adhered to the cell body; therefore, in the process of cell packaging, it is necessary to carry out a dispensing process to complete the adhesion and fixation of the aluminum-plastic film on the cell body to form a complete cell structure; currently, dispensing There are the following technical difficulties in the process: 1. Since the extended part of the aluminum-plastic film is mostly a long and narrow rectangular strip structure, it is necessary to spray the glue on the center line of the aluminum-plastic film at even intervals during the dispensing process to avoid bending. When bending and sticking the aluminum-plastic film, the glue will not flow out of the side of the aluminum-plastic film after being squeezed. The existing technology cannot ensure that the glue is accurately and evenly spaced near the center line of the aluminum-plastic film, and the dispensing process is automatically completed; 2. There are multiple aluminum-plastic film sides to be glued on the cell, and the cell is packaged along the side of the cell. For the aluminum-plastic film sides on both sides of the center line of the cell, due to the different orientations of the dispensing gun, single orientation The dispensing gun cannot dispense glue on the aluminum-plastic film on both sides of the center line of the cell at the same time. For the edge dispensing of the aluminum-plastic film on both sides of the center line of the cell, the existing dispensing process solution is complicated, and a set of dispensing mechanisms cannot Realize glue dispensing; 3. Aiming at the edge contour and glue point detection of the battery aluminum-plastic film, so as to control the aluminum-plastic film edge and glue dispensing quality, so as to improve the glue dispensing quality and ensure the yield rate of the subsequent glue wrapping process. 4. Battery point Automatic code scanning problem during the glue process

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