A method of manufacturing a venting die

Abstract

The invention relates to a method for making a neck mold capable of exhausting. The method comprises the following steps: (1) milling a plane part to be lower than joint-closing surfaces which are arranged at the outer edges along both sides of a cavity; (2) milling a longitudinally arranged gas guide groove on each of joint-closing surfaces; (3) milling transversely arranged air exhaust grooves A on joint-closing surfaces located at both sides of each gas guide groove and (4) milling at a joint-closing line of the neck mold corresponding to a neck ring. Compared with the prior art, by arranging the gas guide grooves and the air exhaust grooves A on the joint-closing surfaces and reserving a gap between the neck mold and the neck ring, the phenomena that the bottle neck is not round, the size is not uniform and the like are avoided, the production quality and the production efficiency of the glass bottle are improved; and meanwhile, by arranging the joint-closing surfaces, the fit area of the joint-closing surfaces in the prior art is reduced, and thus the tolerance of fit is reduced and since the joint-closing surfaces are higher than the plane part so as to provide a gap for the air exhaust grooves A to discharge gas to the outside.

Description

technical field [0001] The invention relates to glass bottle blank processing accessories, in particular to a method for manufacturing a venting die. Background technique [0002] Such as figure 1 As shown, in the manufacturing process of glass bottles, it is necessary to pass the melted glass frit 1 through the cooperation of the blank mold 2, the mouth mold 3, the mouth ring 4, the core (not shown) and the bulkhead (not shown). The glass bottle is preliminarily formed. Among them, the mouth mold 3 is used to form the glass bottle mouth, mainly forming the overall shape, size, bottle mouth thread, etc. of the bottle mouth. It is one of the important molds for manufacturing glass bottles. Specifically, as figure 2 with image 3 As shown, the mouth die 3 is formed by the cooperation of the male die 33 and the female die 34, and the die cavity 32 connecting up and down is provided on the plane part 31 of the male die 33 and the female die 34, and the two die cavities 32 ar...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, because the inside of the die is relatively closed, when the glass frit enters the die, the glass frit squeezes the gas in the die to form a vacuum inside the die, and the sealing of the die causes the glass bottle The bottle mouth is not round, the size of the mouth is not equal, etc. These problems seriously affect the production quality of glass bottles

[0004] In order to solve the above-mentioned problem that the quality of the glass bottle is seriously affected due to the relatively closed inside of the mouth mold, it is currently envisaged to set an exhaust groove on the mouth mold to realize exhaust inside the mouth mold, so as to solve the problem that the bottle mouth is not round and the size is not equal. The problem is to improve the overall quality of the glass bottle, so the present invention proposes a method for making a ventable mold that can improve the production quality of the glass bottle

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