Lead frame waste strip winding disc

Abstract

The invention discloses a lead frame waste strip winding disc. A winding disc is included and composed of a stop disc and a core shaft. A center hole is formed in the core shaft. A conical guiding face is formed at the front end of the inner wall of the center hole. A clamping main shaft is inserted and connected in the center hole and comprises a shaft body and a conical guiding head. The outer wall of the guiding head abuts against the conical guiding face. An inserting hole is formed in the front end face of the clamping main shaft. A limiting column is formed on the bottom face of the inserting hole. The front end of the limiting column penetrates out of the front end face of the winding disc, and a baffle is formed. An L-shaped support is formed on the front end face of the winding disc. The limiting column is sleeved with a compression spring in an inserting manner. The two ends of the compression spring abut against the support and the baffle correspondingly. A positioning plateis formed on the baffle. A fixing block is formed on the support. The fixing block or the positioning plate is provided with a fixing piece making the positioning plate adsorbed and fixed. A cuttinggroove is formed in the inner wall of the inserting hole, and an inserting groove communicating with the cutting groove is formed in the core shaft of the winding disc. The lead frame waste strip winding disc is conveniently fixed to the initial end of a waste strip.

Description

technical field [0001] The invention relates to the technical field of chip packaging devices, in particular to a winding reel of lead frame waste tape. Background technique [0002] The chip packaged in plastic is composed of a lead frame, chip, gold wire, silver paste, etc., and the lead frame is composed of the leads of the packaged chip. At present, some lead frames in the packaging process are distributed on thin metal strips. During packaging, chip bonding and gold wire welding are carried out on the metal strips, and then the chip components are removed from the metal strips by cutting, and finally there will be The next strip of scrap metal with slotted holes is the leadframe scrap strip. The current lead frame waste tape is collected by winding, that is, the lead frame waste tape is wound on the reel, and the lead frame waste tape is rewound by the reel. When winding, the starting end of the waste tape needs to be fixed on the It can only be wound on the reel. At ...

AI Technical Summary

Problems solved by technology

The current lead frame waste tape is collected by winding, that is, the lead frame waste tape is wound on the reel, and the lead frame waste tape is rewound by the reel. When winding, the starting end of the waste tape needs to be fixed on the Winding can only be carried out on the reel. At present, it is troublesome to fix the waste tape on the reel. It is necessary to improve it.

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