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Injection moulding machine

A technology for injection molding machines and moving parts, applied in the field of injection molding machines, can solve problems such as difficulty in formal fixing operations and inability to maintain mold clamping force

Active Publication Date: 2013-04-24
SUMITOMO HEAVY IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In this state, the pre-generated mold clamping force can be maintained by using the toggle mechanism, but the mold clamping force cannot be maintained by using the electromagnet.
Therefore, it is difficult to perform a formal fixing operation in the manner using electromagnets

Method used

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Examples

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Embodiment Construction

[0035] Hereinafter, modes for implementing the present invention will be described with reference to the drawings, but the same or corresponding components will be assigned the same or corresponding symbols in the respective drawings, and the description will be omitted. In addition, the moving direction of the movable platen when the mold is closed is set as the front, and the moving direction of the movable platen when the mold is opened is set as the rear.

[0036] 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.

[0037] 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.

[0038] In the figure, 10 is a mold clamping device, Fr is a frame of an injection molding machine, Gd is a guide formed of two rails laid on the frame Fr, and 11 is a fixed platen (first fixed member). T...

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PUM

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Abstract

The invention provides an injection moulding machine, which can install a mould device at a state that current supply for a mold closing device is stopped. The injection moulding machine has: a first fixed part (11) which is provided with a fixed mold (15); a first moveable part (12) which is provided with a moveable mold (16); a second movable part (22) which can move with the first movable part at the same time; a second fixed part (13) which is configured between the first movable part and the second movable part; an electromagnet (49), which is formed at one party of the second fixed part and the second movable part and absorbs the other party to generate a mold clamping force; and an adjusting part (70) which adjusts the gap between the first movable part and the second movable part. At a state that a preset gap [delta] is formed, the movement of the second movable part (22) in a mold opening direction is limited by the motions of a movement limiting part (80), and then the adjusting part (70) is driven to enable the first movable part (12) to move in a mold closing direction, so that a preset mold closing force is generated.

Description

technical field [0001] The invention relates to an injection molding machine. Background technique [0002] The injection molding machine injects molten resin from the injection device, fills the cavity of the mold device, and solidifies it to form a molded product. 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. [0003] As a mold clamping device, a system using a driving source such as a motor and a toggle mechanism is widely used, but the toggle mechanism is characterized by the fact that it is difficult to change the mold clamping force, and its responsiveness and stability are poor. In addition, when the toggle mechanism operates, a bending moment is generated, and the mounting surface of the mounting die device, etc. may be deformed. [0004] Therefore, there has been proposed a mold clamping device that uses a linear motor for the mold openi...

Claims

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Application Information

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IPC IPC(8): B29C45/64
CPCB29C45/64B29C2045/645
Inventor 柴田达也田村惇朗森谷知宽
Owner SUMITOMO HEAVY IND LTD