Three-color injection molding device with good sealing property

Abstract

The invention discloses a three-color injection molding device with a good sealing property. A middle ejection gun is moved transversely through a moving track; the middle ejection gun can be transversely moved within a relatively large range to be adaptive to the position of a middle feeding hole of a mold; after a locking device is screwed off, a middle adaption elbow can be rotated through a connecting head of a first elbow part and a conical head of the discharge end of the middle ejection gun, a middle ejection nozzle can be specifically aligned to the middle feeding hole of the mold, the locking device can be screwed on, a positioning raised line and a stripy groove can be correspondingly buckled, and thus the middle adaptation elbow can be prevented from random rotation; after the locking device is screwed on, the surface of the conical head and a conical inner surface are matched with each other to clamp elastic sealing pads for sealing on a contact surface, in addition, outer annular convex patterns and inner annular convex patterns can clamp on elastic sealing pads on two sides, then the surfaces of the elastic sealing pads are deformed and are mutually embedded into the outer annular convex patterns and the inner annular convex patterns, the sealing contact area is remarkably increased, and a relatively good sealing effect can be achieved.

Description

[0001] The patent application of the present invention is a divisional application of Chinese patent application number 2015109700920. The application number of the original application is 2015109700920, and the application date is December 22, 2015. The title of the invention is a three-color injection molding device with an adjustable middle injection nozzle. technical field [0002] The invention relates to the field of injection molding devices, in particular to a three-color injection molding device with strong sealing performance. Background technique [0003] More and more shoes are injection molded by injection molding device, and the structure of the injection molding device is known. For example, the Chinese invention patent CN 201410647897.7 discloses a fully automatic injection molding machine, including a mold station, an injection device and a main frame, which is characterized in that : The mold station includes a mold opening and closing cylinder, a connecting...

AI Technical Summary

Problems solved by technology

This invention is widely used, but in actual use, it is similar in structure to other injection molding devices on the market, and cannot adapt to various types of molds with feed holes in different positions. Usually, it is necessary to replace the gun or even the entire injection molding machine. One machine, the adaptability is too single, the use is not flexible enough, and the practicability needs to be improved

Images