Mould opening positioning electro-hydraulic control system and die casting machine

An electro-hydraulic control system and die-casting machine technology, which is applied in the field of die-casting equipment, can solve the problems that the moving platen cannot be slowed down smoothly, and the movable platen cannot be opened and positioned accurately, so as to achieve the effect of reducing load inertia and accurate positioning

Active Publication Date: 2021-11-02
GUANGDONG YIZUMI PRECISION MACHINERY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the current die-casting machine mold opening technology, it is easy to slow down the moving platen due to the large load inertia when performing buffer mold opening, so that it is impossible to accurately position the mold opening of the moving platen

Method used

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  • Mould opening positioning electro-hydraulic control system and die casting machine
  • Mould opening positioning electro-hydraulic control system and die casting machine
  • Mould opening positioning electro-hydraulic control system and die casting machine

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Embodiment Construction

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0031] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the figure). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

[0032] In the present invention, unless...

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Abstract

The invention discloses an electro-hydraulic control system for mold opening and positioning and a die-casting machine. Wherein, the mold opening and positioning electro-hydraulic control system is applied to a die-casting machine, and the die-casting machine includes a mold opening and locking cylinder, and the mold opening and positioning electro-hydraulic control system includes: an oil tank; an oil pump, and the oil pump is connected to the oil tank; The pipeline of the first reversing valve is connected to the oil pump, and one valve port of the first reversing valve communicates with the rod cavity of the mold unlocking cylinder, and the other valve port communicates with the mold unlocking cylinder. The rodless cavity of the oil cylinder is connected, the first reversing valve is connected with the oil tank through the oil return line; and the pressure control valve is arranged in the oil return line and can be used to control the oil return line Oil pressure on the road. The electro-hydraulic control system for mold opening and positioning according to the technical solution of the present invention can accurately locate the mold opening position.

Description

technical field [0001] The invention relates to the technical field of die-casting equipment, in particular to an electro-hydraulic control system for mold opening and positioning and a die-casting machine. Background technique [0002] During the die-casting manufacturing process of the die-casting machine, its injection mechanism can hydraulically inject molten metal into the mold under pressure for cooling and forming, and solid metal castings can be obtained after the mold is opened. Usually, the mold opening process of a die-casting machine is generally divided into three stages: the mold opening start-up stage, the rapid mold opening stage, and the buffer mold opening stage. Speed ​​down to accurately locate the position of the moving platen connected to the piston rod. However, in the current die-casting machine mold opening technology, it is easy to cause the movable platen to fail to slow down smoothly due to the large load inertia during buffer mold opening, so th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D17/26B22D17/32
CPCB22D17/266B22D17/32
Inventor 李葳黄绍龙汪宝生景友燕冯永胜郭委峰钟荣开董秋武
Owner GUANGDONG YIZUMI PRECISION MACHINERY
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