V-shaped injection hydraulic oil way of injection molding machine

Abstract

The invention relates to the technical field of hydraulic control of injection molding machines, which solves the problems that in the prior art, a V-shaped injection seat of an injection molding machine is stable in up-and-down movement part and material storage and oil supplement are not smooth, and particularly discloses a V-shaped injection hydraulic oil way of an injection molding machine, which comprises a system pressure oil inlet, an oil return port, a seat stand oil way, an injection oil way and a material storage oil way. A bidirectional hydraulic lock, a first damper and a second damper are additionally arranged in a seat stand oil way for driving an injection seat to move, so that the stability of vertical movement of the injection seat is guaranteed, the position of the injection seat is effectively kept, a third electromagnetic directional valve for oil supplementation of an injection oil cylinder is arranged in a material storage oil way, and a one-way valve is arranged between the material storage oil way and an oil return port. The one-way valve is also located between the injection oil way and the oil return port, the one-way valve can provide oil return back pressure for the third electromagnetic directional valve and the injection oil cylinder, smooth oil supplementation during material storage can be effectively guaranteed, the injection oil cylinder and the material storage screw can be prevented from falling down, and the position of the injection oil cylinder is kept.

Description

technical field [0001] The invention relates to the technical field of injection molding machines, in particular to a V-shaped injection hydraulic oil circuit of an injection molding machine. Background technique [0002] Injection molding machines can be divided into horizontal type, vertical type and vertical-horizontal compound type according to the arrangement of injection device and clamping device. In common horizontal injection molding machines, double-color and multi-color injection molding machines can be derived according to the placement and quantity of injection devices. Injection molding machines of various styles, such as angle type, butt shot type, etc., the common point of their injection devices is that they are parallel to the ground. [0003] In reality, there is a V-shaped injection device. In fact, it is a vertically downward injection device. Because its injection action is up and down, its movement speed is relatively difficult to maintain stable and r...

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Problems solved by technology

[0003] In reality, there is a V-shaped injection device. In fact, it is a vertically downward injection device. Because its injection action is up and down, its movement speed is relatively difficult to maintain stable and reliable, and the seat oil cylinder and storage screw are easy to respond to gravity. drop

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