Making method of blank mould

Abstract

The invention relates to a making method of a blank mould. The method includes: 1. processing a vertically perforating cavity on the planar part of a male die and a female die respectively, with the closely attached planar parts of the male die and the female die being seam close surfaces; 2. firstly milling several air exhaust slots on the seam close surfaces by 0.1-0.2mm lower than the planar parts, with the air exhaust slots used for connecting the inside of a bottle cavity and the outside air and disposed at the lower halves of the seam close surfaces; 3. disposing a plurality of triangular ribs and punching grooves matching with the triangular ribs on the seam close surfaces, and arranging the plurality of triangular ribs on a straight line in the longitudinal direction. Compared with the prior art, the lower halves of the seam close surfaces are provided with the air exhaust slots, thus avoiding material skip and other phenomena caused by vacuum formed in the cavities, and improving the production quality and production efficiency of glass bottles. Also, the male die and the female die are connected through triangular ribs, thus providing air exhaust space for the air exhaust slots.

Description

Technical field [0001] The invention relates to a glass bottle rough blank processing accessory, in particular to a method for manufacturing a preliminary mold which is beneficial to exhaust. Background technique [0002] As we all know, the first mold is one of the important molds for manufacturing glass bottles, such as figure 1 As shown, the preliminary mold 1 is formed by the cooperation of a male mold 11 and a female mold 12. The plane parts 10 of the male mold 11 and the female mold 12 are respectively provided with cavities 2 penetrating up and down. The fit makes a bottle cavity formed inside the entire prototype 1, and the flat part 10 where the male mold 11 and the female mold 12 closely fit together is the seam surface 3. In the glass bottle manufacturing process, it needs to be melted The good glass frit 4 is initially formed by the cooperation of the primary mold 1, the die 5, the core 6 and the bulkhead (not shown). However, in the prior art, when the glass frit ent...

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Problems solved by technology

[0002] As we all know, the initial mold is one of the important molds for manufacturing glass bottles, such as figure 1 As shown, the initial mold 1 is formed by the cooperation of the male mold 11 and the female mold 12. On the plane part 10 of the male mold 11 and the female mold 12, there are respectively formed cavities 2 that penetrate up and down, and the two cavities 2 are connected to each other. Cooperate so that a bottle body cavity is formed inside the entire primary mold 1, and the plane part 10 where the male mold 11 and the female mold 12 are closely attached is the joint surface 3. During the production and manufacturing process of the glass bottle, it is necessary to melt the Good glass frit 4 makes glass bottle preliminarily formed by the cooperation of blank mold 1, die 5, core 6 and bulkhead (not shown), but, in the prior art, when glass frit enters in the blank mold, Because the glass frit squeezes the air in the primary mold, a vacuum is formed inside the primary mold, resulting in poor feeding of the glass frit, resulting in thin shoulders of the glass bottle, uneven thickness of the bottle body, sticking wires in the bottle, and even glass bottles. The phenomenon of material skipping or partial material seriously affects the quality of glass bottle products, and if the material skipping is serious, the glass material will jump out of the initial mold, which shows that there is a major safety hazard

[0003] In order to solve the above-mentioned problem that glass frit rebound caused by the vacuum inside the primary mold caused by the feeding of the glass frit and seriously affect the quality of the glass bottle, the present invention proposes a method for making the primary mold that is conducive to exhaust and can avoid glass frit skipping

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