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Injection unit for injection molding machine

An injection molding machine and barrel technology, applied in the field of injection molding devices, can solve problems such as difficult to achieve precise control and unsatisfactory extrusion effects, achieve simplified control system functions, ensure heating efficiency and stability, and stabilize melt pressure curves Effect

Active Publication Date: 2016-03-02
浙江华业塑料机械股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the melt extrusion process of this mechanism, the screw has rotational inertia and cannot be stopped suddenly. Whether the extrusion is random or not is difficult to achieve precise control. At the same time, the extrusion of the melt will be affected by factors such as temperature and pressure when it moves axially The stability and linearity make the extrusion effect unsatisfactory, so the structure of the device needs to be further improved

Method used

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  • Injection unit for injection molding machine
  • Injection unit for injection molding machine
  • Injection unit for injection molding machine

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Embodiment Construction

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0018] like Figure 1 to Figure 4 As shown, the injection molding device used in the injection molding machine of this embodiment includes an injection part N connected to the discharge hole 41 of the plasticizing part M, and the plasticizing part M and the injection part N are separate structures. The injection part N includes an injection cylinder 1, an injection tube 2 adapted to the injection hole of the mold, and an injection piston 3. The injection piston 3 can be movably placed in the inner cavity 11 of the injection cylinder 1, and the injection piston 3 is connected through a The rod is connected to the driving part, the injection tube 2 is arranged at the front of the injection cylinder 1, and the discharge channel 21 in the injection tube 2 communicates with the inner cavity 11 of the injection cylinder 1, and the injection cylinder...

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Abstract

The invention discloses an injection molding device for an injection molding machine. A plasticizing part (M) and an injection part (N) are of separated structures; the injection part (N) comprises an injection cylinder body (1), an injection pipe (2) and an injection piston (3); the injection piston (3) is arranged in an inner cavity (11) of the injection cylinder body (1), and is connected with a driving part through a connecting rod; the injection pipe (2) is arranged on the front part of the injection cylinder body (1), and a material discharge channel (21) in the injection pipe (2) is communicated with the inner cavity (11) of the injection cylinder body (1); and the inner cavity (11) of the injection cylinder body (1) is communicated with a material discharge hole (41) of the plasticizing part (M) through a through hole (12). The injection molding device for the injection molding machine has the advantages that three parameters of a melt glue screw cannot be affected by axial moving, the melt glue pressure curve is stable, stable material discharging can be achieved, the phenomena of material feed quantity fluctuation and empty material discharging can be avoided, and meanwhile the linear relation of yield and speed can be achieved; and in addition, axis positions of the melt glue screw and a machine barrel can be fixed, the heating efficiency and the stability of the outer part of the machine barrel can be ensured, and the variability and lagged effects of temperature measurement and heating can be furthest reduced.

Description

technical field [0001] The invention relates to an injection molding machine, in particular to an injection molding device used in the injection molding machine with stable melt glue and high process control linearity. Background technique [0002] There is an existing Chinese utility model patent with the patent number CN201220207208.7 titled "Injection Molding Mechanism of High-Performance Single-Cylinder Injection Molding Machine", which discloses an injection molding mechanism of an injection molding machine, specifically a high-performance single-cylinder injection molding machine. The injection molding mechanism includes a base, a screw mounted on the base, and an injection cylinder device installed on the rear side of the screw. The rear end of the screw is fixedly connected to a coupling driven by a cycloidal oil motor. The differential injection drives the cycloid oil motor and the coupling for high-speed horizontal linear motion. The invention directly connects th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/54B29C45/58
Inventor 夏增富
Owner 浙江华业塑料机械股份有限公司
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