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Hydraulic control system for PVC (Polyvinyl Chloride) injection machine and control method thereof

A hydraulic control system and injection machine technology, applied in the field of PVC injection machine hydraulic control system, can solve the problems of low degree of automation, unfavorable enterprise control, high production cost, etc., and achieve the effect of stable operation of equipment, improvement of consistency and overall quality

Pending Publication Date: 2017-12-08
QUANZHOU SHICHUANG MACHINERY MFG CO LTD
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Problems solved by technology

[0002] At present, due to the low degree of automation of the injection molding machine used in footwear products, the production efficiency is low, and it requires a large investment of human resources, which not only has a large production cost, but also is not conducive to enterprise management and control.
In the prior art, the device has great inconvenience and defects in structure and application, which needs to be improved urgently

Method used

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  • Hydraulic control system for PVC (Polyvinyl Chloride) injection machine and control method thereof

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Embodiment

[0026] refer to figure 1 , a PVC injection machine hydraulic control system, including an oil tank 1 for oil supply, the oil tank 1 is connected to a motor 2 and an oil pump 3 (vane pump) to realize oil supply, and also includes a parallel connection to the oil tank Feeding circuit 10, mold opening and closing circuit 20, injection circuit 30 and material blocking circuit 40, said feeding circuit 10 includes a flow control valve 11 and an oil motor 12 connected in sequence, and the oil motor 12 acts on the feeding screw of the injection machine On, the oil motor 12 stops functioning after the feeding screw is in place;

[0027] The Chinese patent CN 102366981A published on March 07, 2012 discloses a high-pressure mold clamping device for rapid mold opening and closing, which discloses the specific structure and implementation of the mother-child cylinder device. This embodiment is based on this, so the The mold opening and closing circuit 20 includes a mold opening and closin...

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Abstract

The invention relates to the technical field of forming equipment for footwear products, in particular to a hydraulic control system for a PVC (Polyvinyl Chloride) injection machine. The hydraulic control system comprises an oil tank used for supplying oil, and a material inlet loop, a mould opening and closing loop, an injecting loop and a material blocking loop which are connected with the oil tank in parallel; the oil tank is connected with a motor and an oil pump to realize oil supply; the material inlet loop comprises a flow control valve and an oil motor which are connected in sequence; the oil motor acts on a material inlet screw rod of an injection machine; the mould opening and closing loop comprises a mould opening and closing electromagnetic reversing valve, a mould closing pressurizing oil cylinder and a pressurizing oil way; the mould closing pressurizing oil cylinder is a primary-secondary cylinder which is connected with a liquid filling valve; the mould opening and closing electromagnetic reversing valve is a three-way three-position electromagnetic reversing valve; and two oil outlets are respectively connected with a quick closing oil opening and a mould opening oil opening of the primary-secondary cylinder. The PVC injection machine hydraulic control system is mainly applied to an improvement mechanism on the conventional PVC injection machine, so that the purpose of automatic production of the equipment is achieved through a hydraulic module.

Description

technical field [0001] The invention relates to the technical field of footwear molding equipment, in particular to a hydraulic control system for a PVC injection machine and a control method for the system. Background technique [0002] At present, injection molding machines used in footwear products have a low degree of automation and low production efficiency, requiring a large investment of human resources, which not only has a large production cost, but is also not conducive to enterprise management and control. In the prior art, there are great inconveniences and defects in the structure and application of the device, which need to be improved urgently. How to realize the automatic production of equipment is a technical problem to be solved today. Contents of the invention [0003] Therefore, in view of the above problems, the present invention provides a hydraulic control system and a control method for a PVC injection machine suitable for automatic production and ...

Claims

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Application Information

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IPC IPC(8): B29C45/82
CPCB29C45/82B29C2945/76785B29C2945/76648
Inventor 吴小奇郭友林
Owner QUANZHOU SHICHUANG MACHINERY MFG CO LTD
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