Constant-pressure air supply valve terminal system

Abstract

The invention discloses a constant-pressure air supply valve terminal system which comprises a base support plate, a central air supply tank, air connectors, a valve terminal mother board, one or a plurality of electromagnetic valves and pressure regulating valves. The base support plate is fixedly connected with the bottom of the valve terminal mother board, one or a plurality of air inlet holes and a plurality of air outlet holes are formed in the central air supply tank and are used for being connected with compressed air, a plurality of independent air inlets and a plurality of independent exhaust ports are formed in the valve terminal mother board, the air outlet holes of the central air supply tank are connected with air inlets of the corresponding pressure regulating valves by the air connectors, the pressure regulating valves are fixed onto the valve terminal mother board, air outlets of the pressure regulating valves which are fixed onto the valve terminal mother board are connected with air inlets of the electromagnetic valves, the air inlets of the electromagnetic valves are formed in the valve terminal mother board, and driving ports which are used for being connected with execution components are formed in the electromagnetic valves. The constant-pressure air supply valve terminal system has the advantages that air can be supplied for various pneumatic components by the single central air supply tank, so that mounting space can be saved, maintenance can be facilitated when devices fail, and air inlet pipelines and exhaust pipelines of the electromagnetic valves are independent and do not interfere with one another.

Description

technical field [0001] The invention relates to the field of pneumatic control, in particular to a stabilizing air supply valve island system. Background technique [0002] The valve island is a new generation of gas-electric integrated control components. It has developed from the valve island with multi-pin interface to the valve island with field bus, and then the programmable valve island and modular valve island. The combination of valve island technology and field bus technology not only ensures the easy wiring of electric control valves, but also greatly simplifies the debugging, performance testing, diagnosis and maintenance of complex systems. With the help of the high-level integrated information system of the field bus, the advantages of the two can be fully exerted, and it has a wide application prospect. [0003] Most of the existing valve islands adopt the structure of 4 seats, 8 seats, 16 seats or other numbers connected together. There are three main problem...

AI Technical Summary

Problems solved by technology

[0003] Most of the existing valve islands adopt the structure of 4 seats, 8 seats, 16 seats or other numbers connected together. There are three main problems in the process of use: 1. Due to the limitation of the pipeline volume, the solenoid valves on the valve island are used at the same time or at the wrong time. When opening and closing, the problem of air pressure instability caused by insufficient flow will occur. The time required for the same action of the cylinder and other actuators will be different, which will affect the mechanical action that requires high precision coordination, which is not conducive to normal and stable production. need

2. Due to the limitation of the existing valve island pipeline design, the compressed air leading to a valve island can only be one air pressure, and the differential pressure required by different actuators can only be realized by adjusting the air flow rate, but this The method is only to adjust the action appearance shown by the executive part, and does not change the essence of affecting the accuracy and stability of the action of the executive part, which will reduce the service life of the executive part or its peripheral parts

3. Since the exhaust pipes of the existing valve islands are common, the exhaust action between the solenoid valves will cause the problem of mutual occupation of the pipes during use.

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