An automatic and manual adjustment air pressure system

Abstract

The utility model relates to a kind of automatic and manual adjustment's air pressure system.The air pressure system includes total air inlet ball valve, air pressure automatic adjustment pipeline, air pressure manual adjustment pipeline and pressure sensor;The air pressure automatic adjustment pipeline includes air inlet solenoid valve, automatic air inlet check valve, exhaust solenoid valve;The air pressure manual adjustment pipeline includes hand-adjusted pressure reducing valve, manual adjustment pressure gauge, manual air inlet check valve, total exhaust ball valve.The utility model is high in degree of automation in regulating process, accurate and reliable, air pressure is stable, manual adjustment loop is used as temporary loop, directly set to the required air pressure value, can make press machine continuous production without stopping, improve work efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of pneumatic pressure regulating systems for press, in particular to a kind of automatic and manual adjustment pneumatic system. BACKGROUND

[0002] The existing mechanical press, when replacing mould, many adopt manual adjustment balance cylinder, air cushion etc. Pneumatic pressure, to adapt to process requirements. But manual adjustment and pressure gauge display not only cannot meet the requirements of automation, also cannot meet the requirement of high adjustment accuracy. With the development of automation, the demand of pneumatic automatic adjustment is more and more urgent. UTILITY MODEL CONTENT

[0003] The utility model aims at providing a kind of automatic and manual adjustment pneumatic system, to solve the problems in prior art.

[0004] The technical scheme of the utility model is: a kind of automatic and manual adjustment pneumatic system, the pneumatic system includes total inlet ball valve, pneumatic pressure automatic adjustment pipeline, pneumatic pressure manual adjustment pipeline, air cylinder and pressure sensor;

[0005] The pressure sensor is arranged on the air cylinder;

[0006] External compressed air source is filled into air cylinder by pneumatic pressure automatic adjustment pipeline and pneumatic pressure manual adjustment pipeline respectively, and total inlet ball valve is arranged on compressed air source input pipeline;

[0007] The pneumatic pressure automatic adjustment pipeline includes inlet solenoid valve, automatic inlet check valve, exhaust solenoid valve, the inlet solenoid valve, automatic inlet check valve, exhaust solenoid valve are sequentially arranged on pneumatic pressure automatic adjustment pipeline;

[0008] The pneumatic pressure manual adjustment pipeline includes hand-adjusted pressure reducing valve, manual adjustment pressure gauge, manual inlet check valve, total exhaust ball valve, and the hand-adjusted pressure reducing valve, manual adjustment pressure gauge, manual inlet check valve, total exhaust ball valve are sequentially arranged on pneumatic pressure manual adjustment pipeline.

[0009] The utility model discloses a beneficial effect is: through comparing the current gas pressure value and design gas pressure value of gas cylinder, the required setting value is obtained by the program control two solenoid valves air intake and exhaust, when the gas pressure value of gas cylinder is less than the setting value, air inlet valve opens, until reaching the setting value, when the gas pressure value of gas cylinder is greater than the setting value, exhaust valve opens, until reaching the setting value. But when the gas cylinder starts to supplement from zero pressure to the required pressure value, it will consume a long time often, is not favorable to improve efficiency, so in the automatic adjustment loop and incorporate the manual adjustment loop, and pressure is set in the corresponding gas pressure value of no load time, like this under the participation of no electric control system, the gas pressure of gas cylinder will have an initial gas pressure value, when the machine tool starts and installs good mould, the gas pressure is automatically adjusted, and the gas pressure value of gas cylinder is adjusted from this initial value upwards, shortens the gas cylinder inflation time, improves work efficiency. Process automation, accurate and reliable, gas pressure is stable. Moreover, when the automatic adjustment function is wrong and no relevant spare parts can be replaced, the manual adjustment loop can be used as a temporary loop, and the required gas pressure value can be directly set, so that the press machine can continuously produce without stopping, improving work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is the working principle diagram of the utility model.

[0011] In the drawing, 1 is total inlet ball valve, 2 is inlet solenoid valve, 3 is automatic inlet check valve, 4 is exhaust solenoid valve, 5 is hand regulating pressure reducing valve, 6 is hand regulating pressure gauge, 7 is hand inlet check valve, 8 is total exhaust ball valve, 9 is pressure sensor. DETAILED DESCRIPTION

[0012] An automatic and manual adjustment gas pressure system, characterized in that: the gas pressure system includes total inlet ball valve 1, gas pressure automatic adjustment pipeline, gas pressure manual adjustment pipeline, gas cylinder and pressure sensor 9;

[0013] The pressure sensor 9 is arranged on the gas cylinder;

[0014] The external compressed air source fills into the gas cylinder through the gas pressure automatic adjustment pipeline and the gas pressure manual adjustment pipeline respectively, and the total inlet ball valve 1 is arranged on the compressed air source input pipeline;

[0015] The gas pressure automatic adjustment pipeline includes inlet solenoid valve 2, automatic inlet check valve 3 and exhaust solenoid valve 4, and the inlet solenoid valve 2, the automatic inlet check valve 3 and the exhaust solenoid valve 4 are sequentially arranged on the gas pressure automatic adjustment pipeline;

[0016] The gas pressure manual adjustment pipeline includes hand regulating pressure reducing valve 5, hand regulating pressure gauge 6, hand inlet check valve 7 and total exhaust ball valve 8, and the hand regulating pressure reducing valve 5, the hand regulating pressure gauge 6, the hand inlet check valve 7 and the total exhaust ball valve 8 are sequentially arranged on the gas pressure manual adjustment pipeline.

[0017] The working process of the utility model is:

[0018] When the machine tool is not started, the compressed air source of the factory fills the air cylinder through the total air inlet ball valve 1, the hand-adjusting pressure reducing valve 5 and the hand-operated air inlet check valve 7, and reaches the initial pressure value shown by the hand-adjusting pressure gauge 6.

[0019] When the machine tool is started, a pressure value is set through the man-machine interface, and the program controls the on-off of the air inlet electromagnetic valve 2 and the exhaust electromagnetic valve 4 respectively according to the pressure value measured by the pressure sensor 9 and the set pressure value, so that the compressed air enters or discharges the air cylinder.

[0020] When the pressure value measured by the pressure sensor 9 is less than the set pressure value, the exhaust electromagnetic valve 4 does not act, the compressed air enters the air cylinder through the total air inlet ball valve 1, the air inlet electromagnetic valve 2 and the automatic air inlet check valve 3, and the air pressure value rises until the set pressure value is reached.

[0021] When the pressure value measured by the pressure sensor 9 is greater than the set pressure value, the air inlet electromagnetic valve 2 does not act, the compressed air discharges the air cylinder through the exhaust electromagnetic valve 4, and the air pressure value decreases until the set pressure value is reached.

[0022] When the automatic adjustment function fails, the air inlet and the air outlet cannot be performed, or the pressure sensor 9 is damaged, the following operations are performed:

[0023] Adjust the hand-adjusting pressure reducing valve 5 to increase the pressure, the compressed air source of the factory fills the air cylinder through the total air inlet ball valve 1, the hand-adjusting pressure reducing valve 5 and the hand-operated air inlet check valve 7, and reaches the pressure value shown by the hand-adjusting pressure gauge 6, which is relatively long in automatic adjustment time, but avoids shutdown.

[0024] Adjust the hand-adjusting pressure reducing valve 5 to decrease the pressure until the required pressure value shown by the hand-adjusting pressure gauge 6, open the total exhaust ball valve 8, discharge the air in the air cylinder, and decrease the air pressure of the air cylinder until the pressure value shown by the hand-adjusting pressure gauge 6 starts to decrease, then close the total exhaust ball valve 8, and the air pressure of the air cylinder reaches the pressure value shown by the hand-adjusting pressure gauge 6.

[0025] The air inlet and air outlet process of the automatic adjustment circuit is automatic, accurate and reliable, and the air pressure is stable.

[0026] The air inlet and air outlet circuit of the hand-operated air inlet shortens the air charging time of the air cylinder, maintains the continuous operation of the machine tool when the automatic adjustment fails, and improves the production efficiency.

[0027] In the utility model, unless another definite provision and limitation, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electric connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be two element inside's intercommunication or two element's mutual action relation, unless another definite limitation, for ordinary skill in the art to the person, can understand the specific meaning of the above-mentioned terms in the utility model according to specific circumstances.

[0028] The standard parts used in the utility model can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings.

[0029] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic and manual adjustment pneumatic system characterized by: The air pressure system comprises a total air inlet ball valve (1), an air pressure automatic adjustment pipeline, an air pressure manual adjustment pipeline, an air cylinder and a pressure sensor (9); The pressure sensor (9) is arranged on the air cylinder; An external compressed air source is filled into the air cylinder through the air pressure automatic adjustment pipeline and the air pressure manual adjustment pipeline, and a total air inlet ball valve (1) is arranged on a compressed air source input pipeline; The air pressure automatic adjustment pipeline comprises an air inlet electromagnetic valve (2), an automatic air inlet check valve (3) and an exhaust electromagnetic valve (4), and the air inlet electromagnetic valve (2), the automatic air inlet check valve (3) and the exhaust electromagnetic valve (4) are sequentially arranged on the air pressure automatic adjustment pipeline; The air pressure manual adjustment pipeline comprises a hand-operated pressure reducing valve (5), a hand-operated pressure gauge (6), a hand-operated air inlet check valve (7) and a total exhaust ball valve (8), and the hand-operated pressure reducing valve (5), the hand-operated pressure gauge (6), the hand-operated air inlet check valve (7) and the total exhaust ball valve (8) are sequentially arranged on the air pressure manual adjustment pipeline.

Images