Choke plug structure for primary mold of glass mold

Abstract

The invention discloses a choke plug structure for a primary mold of a glass mold, belonging to the technical field of glass mold accessories. The choke plug structure comprises a valve body and a valve core and is characterized in that a valve core limiting member groove is formed in a valve body cavity of the valve body, a valve core limiting member is arranged in the valve core limiting member groove, a primary mold matching valve head extends from the lower part of the valve body, a primary mold matching valve head cavity of the primary mold matching valve head is communicated with the valve body cavity, and an air return hole is formed in the wall body of the primary mold matching valve head, wherein the opening of the primary mold matching valve head cavity forms a valve matching opening; and the valve core is positioned below the valve core limiting member in the valve body cavity and matched with the valve matching opening. The choke plug structure ensures that the valve core moves enduringly and stably; the choke plug structure is simple in structure and convenient to manufacture and assemble; and the choke plug structure can ensure that air flows smoothly during choking, so that the valve core quickly moves towards the primary mold.

Description

technical field [0001] The invention belongs to the technical field of glass mold accessories, and in particular relates to a bulkhead structure for a glass mold blank. Background technique [0002] As known in the industry, using the blow-blow method to make bottle-type glass containers such as beer bottles, red wine bottles, soda bottles, various seasoning bottles and even cosmetic bottles generally requires the use of initial molds and forming molds. The body is introduced into the primary mold, and the prototype of the glass container is blown into the primary mold (the industry is accustomed to call it a blank), and then the robot transfers the blank to the forming mold for blowing and molding, and finally the finished glass container is obtained. In order to ensure that the glass melt that enters the initial mold is successfully blown out of the aforementioned blank, it is necessary to equip the blank with a blanking head. It is in the state of matching with the prim...

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Problems solved by technology

But there are the following deficiencies: First, because the spring of the structural system of the elastic connecting member is prone to fatigue, the displacement of the spool (the inner core in the patent) will change with the elasticity of the spring, that is, the permanent movement of the spool The stability effect is difficult to guarantee; second, due to the complex structure, both manufacturing and assembly are more troublesome; third, due to the setting of the spring, the spring will affect the smooth circulation of the gas when blowing the air, because the spring is located in the valve core of the valve core. In the core cavity, the air during puffing needs to enter the valve core cavity and push the valve core to move downward under the counter force of the spring (that is, to move toward the initial mold direction)

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