Cutting device and cutting method of rubber stopper vulcanized rubber sheet

Abstract

The invention discloses a cutting device and cutting method of a rubber stopper vulcanized rubber sheet. The cutting device comprises a positioning plate used for positioning the rubber stopper and the vulcanized rubber sheet; and a cylindrical toothed knife used for removing defects of the rubber stopper and a square toothed knife used for cutting the vulcanized rubber sheet are arranged above the positioning plate. According to the cutting device and the cutting method, the defective rubber stoppers on the vulcanized rubber sheet can be quickly and automatically removed, the whole vulcanizedrubber sheet can be quickly cut into small plates while the excess rubber edge of the whole vulcanized rubber sheet is cut off, so that the working efficiency is greatly improved, and the labor intensity of workers is reduced.

Description

technical field [0001] The invention relates to the technical field of rubber stopper production, in particular to a cutting device and cutting method for vulcanized rubber sheets of rubber stoppers. Background technique [0002] Medical rubber stoppers are the sealing and exporting parts of drug packaging. The total amount of injection rubber stoppers, oral liquid rubber stoppers, and pre-filling stoppers used in my country is nearly 100 billion every year. The production process of pharmaceutical rubber is basically the same at home and abroad, and the process flow is as follows: material matching, rubber mixing, rubber preforming, vulcanization molding, edge removal, cleaning, packaging. Among them, the vulcanization of rubber plugs is the process of "transforming" rubber compounds into rubber plugs for a certain period of time under certain temperature and pressure conditions. The linear structure generates a three-dimensional network structure through a cross-linking r...

AI Technical Summary

Problems solved by technology

At present, both domestic and foreign work are done by vulcanization operators through scissors, which is time-consuming, laborious and inefficient.

[0004] We know that the shearing of materials is achieved by the double-edged scissors, and the gap between the double-edged edges is determined according to the thickness of the object to be cut, that is, the greater the thickness of the object to be cut, the larger the gap between the double-edged edges should be. The unique elasticity of the product and the thin and soft characteristics of the vulcanized film, when sheared by scissors, the elastic vulcanized film is easily stretched and deformed, which leads to the constant change of the thickness of the cut object, and this deformation is also equivalent to "Energy absorption" is equivalent to "unloading" an indefinite amount of shearing force. Therefore, it is much more difficult to complete these tasks with scissors than paper cutting, cloth cutting, etc., and the rubber vulcanized film has a high rubber content, high elasticity, Low hardness and thin thickness lead to difficulty in cutting; this undoubtedly increases the labor intensity of vulcanization operators, and the working environment is poor and intensive. In addition, scissors are the first consumables in rubber stopper manufacturers, and all production units are equipped with Dedicated scissor sharpener

Images