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Rubber cold runner system

A cold runner and rubber technology, applied in the field of rubber injection molding, can solve problems such as insufficient pressure, achieve the effect of solving insufficient pressure, ensuring the balance of injection force, and solving the phenomenon of dead glue

Active Publication Date: 2013-05-08
JIANGSU LUOSHI DAMPING MEMBER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a rubber cold runner system, which ensures a strong injection force balance when the system is empty, and solves the problem of insufficient pressure

Method used

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Embodiment Construction

[0015] A preferred embodiment will be given below, and the present invention will be described more clearly and completely in conjunction with the accompanying drawings.

[0016] Such as figure 1 As shown, the rubber cold runner system of the present invention includes a sprue sleeve 1, a positioning ring 2, an upper cavity plate 3, a lower cavity plate 4, a heat insulation plate 5, a heating plate 6, a panel 7, a circular sealing strip 8, an inner hexagon Screw 9, hex nut 10, first sealing ring 11, second sealing ring 12, third sealing ring 13, fourth sealing ring 14, fifth sealing ring 15, sixth sealing ring 16, nozzle barrel 17, disc Spring 18, nozzle body 19, upper cover 20 and movable nozzle 21, sprue sleeve 1, positioning ring 2, upper cavity plate 3, lower cavity plate 4, nozzle barrel 17, disc spring 18, nozzle body 19, upper cover 20 It forms a pouring unit with the movable nozzle 21, and the upper cavity plate 3 and the lower cavity plate 4 form a splitter plate. Th...

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PUM

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Abstract

The invention discloses a rubber cold runner system, comprising a sprue bush, a positioning ring, an upper cavity plate, a lower cavity plate, an insulating plate, a heating plate, a panel, a round sealing strip, an inner hexagonal screw, a hexagonal nut, a spray nozzle cylinder, a spray nozzle body, an upper cover and a movable spray nozzle. The sprue bush is arranged on the upper cavity plate through the positioning ring; the upper cavity plate and the lower cavity plate are locked by the inner hexagonal screw and the hexagonal nut; the round sealing strip is arranged between the upper cavity plate and the lower cavity plate; the insulating plate, the heating plate and the panel are arranged below the lower cavity plate in sequence; the spray nozzle body is in screwed connection with the upper cover; one end of the movable spray nozzle is connected with the lower cavity plate; the spray nozzle cylinder is wrapped outside the movable spray nozzle; and the spray nozzle body is wrappedoutside the spray nozzle cylinder. According to the invention, the balance of the strong pouring force during the hollow pouring of the rubber cold runner system is ensured, and the problem of pressure bearing insufficiency is solved.

Description

technical field [0001] The invention relates to the field of rubber injection molding, in particular to a rubber cold runner system. Background technique [0002] The core or technical bottleneck of the cold runner system lies in the temperature control of the active nozzle section and the strong injection pressure (up to 300 bar, bar is the unit of pressure) that the system needs to withstand when the system is empty, that is, the pressure-bearing design of the locking unit. Due to the dynamic movement of the movable nozzle, the sealing of the water hole has always been a problem. If the control is not good, water seepage and glue leakage will easily occur, and then the temperature of the rubber material in the movable nozzle section cannot be controlled, resulting in dead glue, which requires emptying after each injection. The production of the next mold can only be continued after a section of rubber material that has been vulcanized at the front end. The injection press...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/27B29C45/73
Inventor 余顺和
Owner JIANGSU LUOSHI DAMPING MEMBER CO LTD