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Injection molding machine

A technology of injection molding machine and cooling mechanism, applied in the field of injection molding machine, can solve problems such as poor responsiveness of electromagnets, and achieve the effect of improving responsiveness

Active Publication Date: 2013-04-17
SUMITOMO HEAVY IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, in the case of using a mold clamping device using the attraction force of an electromagnet as described in Patent Document 1, if a single coil is used, there is a problem that the responsiveness at the time of electromagnet driving is not good.

Method used

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Embodiment Construction

[0026] Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings. In this embodiment, the mold clamping device assumes the moving direction of the movable platen at the time of mold closing as the front, and the direction of movement of the movable platen at the time of mold opening as the rear, and the injection device as follows: The movement direction of the screw during injection is assumed to be forward, and the direction of movement of the screw during metering is assumed to be backward.

[0027] figure 1 It is a figure showing the state when the clamping device in the injection molding machine according to the embodiment of the present invention closes the mold, figure 2 It is a figure which shows the state at the time of mold opening of the clamping device in the injection molding machine concerning embodiment of this invention. In addition, in figure 1 and figure 2 In , the hatched parts represent the main...

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Abstract

The invention provides an injection molding machine, wherein the responsibility of a magnet is effectively enhanced employing a plurality of coils. The injection molding machine includes the components as following: a first fixed component, which is equipped with a fixed mold; a second fixed compoment, which is at the position symmetrical with the first fixed compoment; a first movable compoment, which is equipped with a movable mold; and a second movable compoment, which is connected with the first movable compoment and moves with the first movable compoment together. The second fixed compoment and the second movable compoment comprise a clamp force generation mechanism which generates a clamp force through the absorption force of the magent, one of the second fixed compoment and the second movable compoment is provided with a plurality of coil grooves equipped with coils of the magnet, and a plurality of coils are overlapped at the depth direction of each coil groove.

Description

technical field [0001] The present invention relates to an injection molding machine equipped with an electromagnet for driving mold clamping operation. Background technique [0002] Conventionally, in an injection molding machine, resin is injected from an injection nozzle of an injection device, filled into a cavity space between a fixed mold and a movable mold, and cured to obtain a molded product. In addition, a mold clamping device is provided for closing, clamping, and opening the mold by moving the movable mold relative to the fixed mold. [0003] The mold clamping device includes a hydraulic mold clamping device driven by supplying oil to a hydraulic cylinder and an electric mold clamping device driven by an electric motor. The electric mold clamping device has high controllability, does not pollute the surrounding area, and consumes less energy. High efficiency, so widely used. At this time, by driving the motor to rotate the ball screw to generate a thrust force,...

Claims

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Application Information

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IPC IPC(8): B29C45/64
CPCB29C45/64B29C2045/647
Inventor 山下幸贵森江孝明水野博之
Owner SUMITOMO HEAVY IND LTD
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