Three-color injecting molding device with adjustable middle injecting nozzle

Abstract

The invention provides a three-color injecting molding device with an adjustable middle injecting nozzle. A middle injecting gun is moved within a large range in the horizontal direction by a moving rail to adapt to the position of a middle feeding hole of a molding die. After a locking device is unscrewed, a middle switch-over bend can rotate with the assistance of a connector of a first bend part and a conical head at the discharge end of the middle injecting gun, so that the middle injecting nozzle is aligned with the middle feeding hole of the molding die specifically; and then, the locking device can be screwed, so that convex positioning strips and stripped grooves are correspondingly buckled, and the middle switch-over bend is guaranteed not to rotate casually. When the locking device is screwed, the surface of the conical head is matched with the conical inner surface of the connector so as to enable elastic seal cushions to be clamped on the contact surface to be sealed. External annular convex lines and inner annular convex lines can be used for clamping the elastic seal cushions on two sides, so that the surfaces of the elastic seal cushions are deformed, and the elastic seal cushions after deformation are correspondingly embedded in the external annular convex lines and the inner annular convex lines. The sealed contact area is increased remarkably, and the sealing effect is better.

Description

technical field [0001] The invention relates to the field of injection molding devices, in particular to a three-color injection molding device with an adjustable middle injection nozzle. Background technique [0002] 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 CN201410647897.7 discloses a fully automatic injection molding machine, including a mold station, an injection device and a main frame. That is: the mold station includes a mold opening and closing cylinder, a connecting plate mechanism, a guide column, an upper plate, a middle plate and a lower plate, the upper plate and the lower plate are respectively fixed on the upper end and the lower end of the guide column, and the middle plate is slidably arranged on the On the guide column, the cylinder barrel of the mold opening and closing cylinder is fixed on the upper plate, and the piston rod o...

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