Mold-temperature-varying injection mold and control method thereof

An injection mold and mold temperature technology, which is applied in the field of variable mold temperature injection molds and control, can solve the problems of uneven color, unevenness and cracking of the product surface, and achieve the effect of simple and efficient control method, improved product quality and simple structure.

Inactive Publication Date: 2019-07-02
ZHEJIANG WANHAO MOLD & PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For thermal injection molding molds, the temperature control in the injection mold is very important. The unevenness of each point in the mold can easily cause uneven color, streaks, water ripples, silver threads, sink marks, cracks, flashes, and burrs on the surface of the product. etc., affecting product quality and aesthetics

Method used

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  • Mold-temperature-varying injection mold and control method thereof
  • Mold-temperature-varying injection mold and control method thereof
  • Mold-temperature-varying injection mold and control method thereof

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Embodiment Construction

[0030] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0031] see figure 1 It shows a schematic structural diagram of a variable mold temperature control device for a variable mold temperature injection mold provided by Embodiment 1 of the present invention. The variable mold temperature injection mold of the embodiment of the present invention includes a fixed mold with a cavity, a core with The mold movable mold, hot runner and cooling water pipeline also include a variable mold temperature control device arranged in the fixed mold of the mold, wherein the variable mold temperature control device includes: a temperature controller module 10, a PLC control processing module 20, a hot runner section Flow valve control module 30, cavity cooling water throttle control module 40, core cooling water throttle con...

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Abstract

The invention discloses a mold-temperature-varying injection mold and a control method thereof and belongs to the technical field of injection molds. The mold-temperature-varying injection mold comprises a fixed mold body with a mold cavity, a movable mold body with a mold core, a hot runner, a cooling water pipeline and a mold-temperature-varying control device, and the mold-temperature-varying control device comprises a temperature controller module, a PLC control processing module, a hot runner throttle valve control module, a mold cavity cooling water throttle valve control module, a moldcore cooling water throttle valve control module, a switching power supply module, a transformer module, a frequency converter module and an adjusting valve module. According to the mold-temperature-varying injection mold and the control method thereof, the mold-temperature-varying control device detects the temperature of the hot runner to generate control processing signals, the water flow of the cooling water pipeline is controlled and adjusted, the mold temperature of the injection mold is controlled, the uniform temperature of the injection mold is ensured, and the product quality is improved.

Description

technical field [0001] The invention relates to a variable mold temperature injection mold and a control method, belonging to the technical field of injection molds. Background technique [0002] Injection molds have become an important process equipment in the production of various industrial products. With the development of the plastics industry, injection mold products are widely used in the fields of automobiles, electronics, aviation, and aerospace. Injection molds are generally composed of a moving mold and a fixed mold. The moving mold is installed on the moving template of the injection molding machine, and the fixed mold is installed on the fixed template of the injection molding machine. During injection molding, the movable mold and the fixed mold are closed to form the gating system and the cavity, and the movable mold and the fixed mold are separated to take out the plastic product when the mold is opened. For thermal injection molding molds, the temperature c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/78
CPCB29C45/78B29C2945/76531
Inventor 潘勇陈星亮
Owner ZHEJIANG WANHAO MOLD & PLASTIC
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