Mold for manufacturing plastic hose with joints and method for manufacturing plastic hose with joints at both ends

Abstract

A mold used for manufacturing a plastic flexible pipe with joint parts and a manufacture method for the plastic flexible pipe with the joint parts at the two ends belong to an injection mold and a manufacture method of a plastic flexible pipe. The mold possesses fixed mold plate, a fixed mold core, a movable mold plate, a movable mold core and a core-pulling mechanism; the fixed mold core is fixedly disposed on the fixed mold plate, and the movable mold core and the core-pulling mechanism are fixedly disposed on the movable mold plate; the working surface of the fixed mold core faces to the working surface of the movable mold core, and a cavity for accommodating one end of the plastic flexible pipe and the corresponding joint part is arranged between the two working surfaces; the core in the core-pulling mechanism movably protrudes into the cavity and is inserted into the inner hole of the plastic flexible pipe; the mold also possesses a heating mechanism, a first heating element in the heating mechanism is arranged in the fixed mold core, and a second heating element in the heating mechanism is arranged in the movable mold core. The mold helps to fuse the ends of the plastic flexible pipe and the joint parts formed by injection molding without leakage phenomenon.

Description

technical field [0001] The invention relates to a manufacturing method of an injection mold and a plastic hose. Background technique [0002] in real life, figure 1 The plastic hose shown with fittings at both ends is commonly used. Because the length of the middle pipe fitting 1 of this type of plastic hose changes greatly, or the specifications of the joint parts 12 and 13 at both ends are different, it brings a lot of trouble to the manufacture. For example, for a product with a small overall length, it can be manufactured on an injection molding machine with a pair of molds with a middle pipe fitting and two end joints, and the center hole of the middle pipe fitting and two end joints can be produced by core pulling. . However, in this production method, for any change in the specifications of the joints at one end, a corresponding mold with a middle pipe and joints at both ends must be equipped, and the cost of the mold is relatively large. For products with a long ...

AI Technical Summary

Problems solved by technology

[0004] However, the current production method still has the disadvantage that the connection between the pipe fittings and the joints in the middle of the product will leak when the internal water pressure or air pressure of the pipe fittings is high, and its products are not suitable for various products that have strict requirements on leakage. occasion use

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