Injection molding machine for winding pipe connectors

Abstract

The invention provides an injection molding machine for winding pipe connectors and belongs to the technical field of injection molding. The injection molding machine provided by the invention solvesthe technical problems that as for an existing extruding machine, material storage and injection are complex, and the material injection efficiency is low. The injection molding machine for the winding pipe connectors comprises a fixed frame, a mobile seat, a fixed plate, two material injection barrels, a three-way valve, two material storage barrels, a section mould and a mould locking ring; thefixed frame is horizontally arranged; the mobile seat is slidably arranged on the fixed frame; the fixed plate is vertically arranged and connected with one end of the fixed frame; the two material injection barrels are arranged on the two sides of the mobile seat respectively; the three-way valve is arranged at one end of the material injection barrel; the two material storage barrels are arranged above the two material injection barrels correspondingly and connected with the three-way valve correspondingly; the section mould is movably connected with the surface of the fixed plate and can beopened and closed, a mould cavity is formed in the section mould, and material inlet channels are arranged on the two sides of the mould cavity respectively; the mould locking ring is horizontally and movably connected with the fixed plate in a mobile mode; and the three-way valve enables connection and disconnection between a material storage path and a material injection path, and accordingly switching of different paths is achieved.

Description

technical field [0001] The invention belongs to the technical field of injection molding, and relates to a winding pipe joint injection molding machine, in particular to a winding pipe joint injection molding machine suitable for winding structural wall pipe joints. Background technique [0002] Injection molding equipment, also known as injection molding machine or injection machine, is the main molding equipment for making thermoplastics or thermosetting plastics into various shapes of plastic products using plastic molding molds. Injection molding machines are used in a wide range of fields. At present, for drainage The end joints of the winding structure wall pipes are also made by injection molding machines. [0003] For example, the utility model patent with the authorized notification number CN 206967902 U discloses an extrusion and injection device for plastic pipe connectors. It can be seen from the accompanying drawings that a mold frame is arranged in front of the...

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Problems solved by technology

[0003] For example, the utility model patent with the authorized notification number CN 206967902 U discloses an extrusion and injection device for plastic pipe connectors. It can be seen from the accompanying drawings that a mold frame is arranged in front of the extruder, and the upper and lower ends of the mold frame Oil cylinders are erected respectively, and molds connected to the two oil cylinders are installed in the middle of the mold frame. The two oil cylinders drive the two molds to move up and down to realize mold opening and mold closing. At the same time, a circular mold core that can enter and exit the mold is installed. There is a glue injection hole in the center of the mold core, which is used to inject glue into the mold. At least one storage bag is set on the side of the barrel of the extruder. When working, the rubber is stored in the storage bag, and the sandwich plastic After melting, it enters the extruder through the storage bag, and then is extruded into the mold through the extruder. The extrusion device with this structure realizes the separation of the storage material and the injection material. Although the molding device with this structure can Realize the molding of plastic pipe joints, but it has the following technical problems, 1. However, the three-way valve in this structure usually realizes the functions of material storage and injection by controlling the opening and closing of three pipelines respectively. That is to say, it is necessary to install a control switch on the three pipelines respectively. The structure and control method of this three-way valve are relatively complicated, and the cost is high. The three control switches need to be used together at the same time, and the flexibility of use is relatively poor; 2. One injection hole corresponds to multiple injection channels, and the injection channel is far away from the mold cavity, resulting in long injection time and low injection efficiency; There is a large expansion force after feeding, and there will be a certain gap between the two oil cylinders due to the movement, which will cause the mold to shift during the clamping process, resulting in poor clamping effect, resulting in the leakage of raw materials in the mold and the quality of the formed product. poor

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