Ratchet wheel for COF carrier tape conveying and using method thereof

Abstract

The invention discloses a ratchet wheel for COF carrier tape conveying and a using method thereof.The ratchet wheel for COF carrier tape conveying comprises a cylindrical ratchet wheel body, the left side and the right side of the surface of the ratchet wheel body are provided with a plurality of first positioning teeth and a plurality of second positioning teeth respectively, and the first positioning teeth and the second positioning teeth are arranged in parallel; a plurality of first through holes and a plurality of second through holes are formed in the left side and the right side of the COF carrier tape respectively, and the first through holes and the second through holes are arranged in parallel; when the COF carrier tape is installed on the ratchet wheel body, the first positioning teeth can penetrate through the first through holes, the second positioning teeth can penetrate through the second through holes, the peripheral faces of the first positioning teeth and the peripheral faces of the second positioning teeth are smooth surfaces, and the COF carrier tape can be prevented from being scratched. According to the COF carrier tape, the peripheral surfaces of the first positioning teeth and the second positioning teeth are designed into smooth surfaces without sharp right angles and edges, so that the edges of the first through holes and the second through holes can be prevented from being scratched during conveying, and the tearing rate and the reject ratio of the COF carrier tape in later use are reduced.

Description

technical field [0001] The invention relates to the technical field of ratchets, in particular to a ratchet for conveying COF carrier tapes and a method for using the same. Background technique [0002] Carrier Tape refers to a strip-shaped product used in the field of electronic packaging. It has a specific thickness, and holes for holding electronic components are equidistantly distributed in its length direction and used for index positioning. the positioning hole. [0003] COF (chip on film) is called chip on film, and the display driver chip is directly installed on the flexible circuit board without any packaging form, so as to achieve the purpose of reducing the size and being able to bend freely. COF flexible packaging carrier tape is a flexible circuit board connecting semiconductor display chips and terminal products, and is the key material in the COF packaging process; COF packaging display driver chips are currently mainly used in the display screens of TVs, co...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is: In order to solve the technical problem that the COF carrier tape ratchet in the prior art causes the COF carrier tape to increase the tear rate and defect rate during use, the present invention provides a ratchet and a ratchet for COF carrier tape transportation. Its use method can prevent the COF carrier tape from being scratched during transmission, thereby reducing the tear rate and defective rate

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