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injection molding machine

A technology for injection molding machines and moving parts, applied in the field of injection molding machines, can solve the problems of low mold clamping efficiency and high magnetic flux density, and achieve the effect of improving mold clamping efficiency

Inactive Publication Date: 2015-10-14
SUMITOMO HEAVY IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the coil is arranged in this way, when the current is supplied to the coil, the difference between the magnetic flux density of the yoke (outer pole) formed on the outside of the coil and the magnetic flux density of the core (inner pole) formed on the inside of the coil is large, Clamping efficiency is low

Method used

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Embodiment Construction

[0024] Hereinafter, modes for implementing the present invention will be described with reference to the drawings, but in each of the drawings, the same or corresponding components are assigned the same or corresponding symbols and descriptions thereof are omitted. In addition, the moving direction of the movable platen when the mold is closed is set to the front, and the moving direction of the movable platen when the mold is opened is set to the rear.

[0025] figure 1 It is a figure which shows the state at the time of mold closing of the injection molding machine based on one Embodiment of this invention. figure 2 It is a figure which shows the state at the time of mold opening of the injection molding machine based on one embodiment of this invention.

[0026] In the figure, 10 is a mold clamping device, Fr is a frame of an injection molding machine, Gd is a guide composed of two guide rails laid on the frame Fr, and 11 is a fixed platen (first fixed member). The fixed...

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Abstract

PURPOSE: An injection molding device is provided to improve the efficiency of mold clamping by a multipolar electromagnet. CONSTITUTION: An injection molding device comprises a first fixing member, a first driving member, a second driving member, a second fixing member(13), and a rod(39). The fixing member includes a fixing mold, and the first driving member includes a driving mold. The second driving member moves with the first driving member. The second fixing member is arranged between the first driving member and the second driving member. The rod penetrates through the second fixing member and connects the first driving member with the second driving member. One side of the second fixing member and the second driving member affixes the other side and supports multiple coils(48A-48D) of an electromagnet(49) which generates a mold clamping force. The multiple coils are arranged to surround the circumference of the rod.

Description

[0001] This application claims priority based on Japanese Patent Application No. 2011-208152 and Japanese Patent Application No. 2011-208153 filed on September 22, 2011. All the contents of the application are incorporated in this specification by reference. technical field [0002] The invention relates to an injection molding machine. Background technique [0003] The injection molding machine molds a molded product by injecting molten resin from an injection device, filling the cavity of a mold device, and curing it. The mold device consists of a fixed mold and a movable mold. The mold closing, mold clamping and mold opening of the mold device are carried out by the mold clamping device. [0004] A device using a drive source such as a motor and a toggle mechanism is widely used as a mold clamping device, but due to the characteristics of the toggle mechanism, it is difficult to change the mold clamping force, and the responsiveness and stability are poor. In addition,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/64
CPCB29C45/64B29C2045/645
Inventor 山下幸贵森江孝明守谷幸次
Owner SUMITOMO HEAVY IND LTD
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