CN213598286U - High-low pressure system in static pressure forming - Google Patents
High-low pressure system in static pressure forming Download PDFInfo
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- CN213598286U CN213598286U CN202022419379.3U CN202022419379U CN213598286U CN 213598286 U CN213598286 U CN 213598286U CN 202022419379 U CN202022419379 U CN 202022419379U CN 213598286 U CN213598286 U CN 213598286U
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Abstract
The utility model discloses a high low pressure system in static pressure forming, including pressure head auxiliary oil cylinder, the drawing of patterns hydro-cylinder, the pressure head hydro-cylinder, the low pressure oil pipe that links to each other with the low pressure oil pump, the high pressure oil pipe that links to each other with the high pressure oil pump and the time oil pipe T that links to each other with the oil tank, be connected with second electromagnetic directional valve and fourth electromagnetic directional valve between low pressure oil pipe and the pressure head auxiliary oil cylinder, be connected with the third electromagnetic directional valve between low pressure oil pipe and the drawing of patterns hydro-cylinder, first cartridge valve has connected gradually between high pressure oil pipe and the drawing of patterns hydro-cylinder, the second cartridge valve, third cartridge valve and fourth cartridge valve, the pressure head hydro-cylinder links to. The utility model discloses high-low pressure system can provide different pressure oil for pressure head auxiliary oil cylinder, drawing of patterns hydro-cylinder and pressure head hydro-cylinder according to drawing of patterns action and pressure head action demand, realizes the large-traffic action of low pressure, and the high-pressure low discharge action has improved work efficiency greatly, and the shaped article density of production is big, and intensity is high, durable.
Description
Technical Field
The utility model belongs to the technical field of hydraulic system, a high-low pressure system in static pressure forming is related to.
Background
The block forming machine is a machine for producing novel wall material blocks by adding a small amount of cement into materials such as fly ash, river sand, pebbles, stone powder, fly ash, waste ceramsite slag, smelting slag and the like. Most of the molding methods adopt a hydraulic molding mode, and some molding methods adopt vibration molding. The static pressure forming machine for building blocks is a device for forming products by using vibration and static pressure.
With the development of the land and house industry in China and the increase of wall improvement strength, novel wall materials must be vigorously developed to replace solid clay bricks which are high in energy consumption and serious in land damage occupation. The key of the vigorous development of producing the concrete hollow block is the block forming equipment, the technical key of the equipment is to realize automation, high efficiency and simple and convenient operation, and the realization of the functions mainly depends on a hydraulic control device.
The hydraulic control system used on the existing block static pressure forming machine is a single system, only one pressure can be provided, so that the time consumption is long in the demoulding process and the rising and falling processes of a pressure head, the working efficiency of the whole machine is reduced, and the hydraulic control system has the advantages of high energy consumption, high noise and heavy weight.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high-low pressure system among static pressure forming has solved among the current static pressure forming hydraulic control system and can only provide single pressure, makes the lower problem of complete machine work efficiency.
The utility model provides a technical scheme who adopts is, a high low pressure system in static pressure forming, including pressure head auxiliary oil cylinder, the drawing of patterns hydro-cylinder, the pressure head hydro-cylinder, the low pressure oil pipe that links to each other with the low pressure oil pump, the high pressure oil pipe that links to each other with the high pressure oil pump and the time oil pipe T that links to each other with the oil tank, be connected with second electromagnetic directional valve and fourth electromagnetic directional valve between low pressure oil pipe and the pressure head auxiliary oil cylinder, be connected with third electromagnetic directional valve between low pressure oil pipe and the drawing of patterns hydro-cylinder, first cartridge valve has connected gradually between high pressure oil pipe and the drawing of patterns hydro-cylinder, the second cartridge valve, third cartridge valve and fourth cartridge valve, the pressure head hydro-cylinder links.
The utility model is also characterized in that,
and the high-pressure oil pipe is sequentially connected with the sixth cartridge valve, the fifth cartridge valve and the fourth cartridge valve, and the fifth cartridge valve is connected with the second cartridge valve.
The second cartridge valve is connected with a first cover plate valve and a ninth electromagnetic directional valve.
The third cartridge valve is connected with a second cover plate valve and an eleventh electromagnetic directional valve.
The fourth cartridge valve is connected with a third cover plate valve and a sixth electromagnetic directional valve.
The sixth cartridge valve is connected with a pressure regulating valve and a seventh electromagnetic directional valve.
The sixth cartridge valve is connected with an oil return pipe T.
The second electromagnetic directional valve, the fourth electromagnetic directional valve and the third electromagnetic directional valve are two-position four-way electromagnetic directional valves, the P ports of the second electromagnetic directional valve and the fourth electromagnetic directional valve are connected with a low-pressure oil pipe, the A port is connected with a liquid inlet of a pressure head auxiliary oil cylinder, the O port is connected with a liquid return port of the pressure head auxiliary oil cylinder, the B port is connected with a liquid return pipe T, the P port of the third electromagnetic directional valve is connected with a low-pressure oil pipe, the A port is connected with a liquid inlet of a demoulding oil cylinder, the O port is connected with a liquid return port of the demoulding oil cylinder, the B port is connected with the liquid return pipe T, and the liquid return port of the demoulding.
A first one-way valve is connected between the O port of the second electromagnetic directional valve and the liquid return port of the pressure head auxiliary oil cylinder, a second one-way valve is connected between the O port of the fourth electromagnetic directional valve and the liquid return port of the pressure head auxiliary oil cylinder, and a third one-way valve is connected between the O port of the third electromagnetic directional valve and the liquid return port of the demoulding oil cylinder.
And a fourth one-way valve is connected between the pressure head oil cylinder and the liquid filling oil tank, the low-pressure oil pipe is connected with a first electromagnetic reversing valve, and the first electromagnetic reversing valve is connected with the fourth one-way valve and the oil return pipe T.
The utility model has the advantages that the low-pressure oil pipe, the high-pressure oil pipe, the electromagnetic directional valve and the cartridge valve are adopted to form a high-low pressure system, different pressure oil can be provided for the pressure head auxiliary oil cylinder, the demoulding oil cylinder and the pressure head oil cylinder according to the demoulding action and the pressure head action requirement, so that the low-pressure large-flow action and the high-pressure small-flow action are realized, and compared with a single hydraulic system block forming machine, the working efficiency is greatly improved, the time is saved, the diameter of the oil cylinder is reduced, the structure is simple, and the weight is light; in addition, the formed product produced by the high-low pressure system static pressure forming machine has high density, high strength and durability; the whole machine has low noise and meets the requirements of human engineering.
Drawings
Fig. 1 is a schematic structural diagram of a high-low pressure system in the static pressure forming of the present invention.
In the drawing, 1, a pressure head auxiliary cylinder, 2, a demoulding cylinder, 3, a pressure head cylinder, P1, a low-pressure oil pipe, P2, a high-pressure oil pipe, G10a, a first conduction cover plate, G10b, a second conduction cover plate, G13, a pressure regulating valve, G15, a pressure sensor, 17, a first electromagnetic directional valve, 18A, a first one-way valve, 18B, a second one-way valve, 18C, a third one-way valve, G19, a liquid filling oil tank, G21, a fourth one-way valve, 26a, a second electromagnetic directional valve, 26b, a third electromagnetic directional valve, 27, a fourth electromagnetic directional valve, G111, a first cartridge valve, G112, a second cartridge valve, G113, a third cartridge valve, G114, a fourth cartridge valve, G115, a fifth cartridge valve, G116, a sixth cartridge valve, G17A, a first cover, G16, a ninth electromagnetic directional valve, G17B, a second cover, G1A, an eleventh valve, a sixth electromagnetic directional valve, a seventh electromagnetic directional valve, G17C, a seventh electromagnetic directional valve, a pressure regulating valve, a pressure sensor, 17, a first electromagnetic directional valve, a second electromagnetic directional valve, a pressure sensor, a pressure.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The utility model relates to a high low pressure system in static pressure molding, refer to fig. 1, including pressure head auxiliary oil cylinder 1, demoulding oil cylinder 2, pressure head oil cylinder 3, the low pressure oil pipe P1 that links to each other with the low pressure oil pump, the high pressure oil pipe P2 that links to each other with the high pressure oil pump and the oil return pipe T that links to each other with the oil tank, be connected with second electromagnetic directional valve 26a and fourth electromagnetic directional valve 27 between low pressure oil pipe P1 and the pressure head auxiliary oil cylinder 1, be connected with third electromagnetic directional valve 26b between low pressure oil pipe P1 and demoulding oil cylinder 2, first cartridge valve G111 has been connected gradually between high pressure oil pipe P2 and the demoulding oil cylinder 2, second cartridge valve G112, third cartridge valve G113 and fourth cartridge valve G114, pressure head oil cylinder 3 links to each other with second cartridge valve G112 export.
The high pressure line P2 is connected in series to the sixth cartridge G116, the fifth cartridge G115, and the fourth cartridge G114. the fifth cartridge G115 is connected to the second cartridge G112. The second communication cover G10b for the control oil path is attached to the first cartridge G111, and the first communication cover G10a for the control oil path is attached to the fifth cartridge G115.
The second cartridge valve G112 is connected to a first cover valve G17A and a ninth electromagnetic directional valve G16. The third cartridge valve G113 is connected to a second cover valve G17B and an eleventh electromagnetic directional valve G14A, and the fourth cartridge valve G114 is connected to a third cover valve G17C and a sixth electromagnetic directional valve G14B. The pressure regulating valve G13 and the seventh solenoid directional valve G14C are connected to the sixth cartridge valve G116, and the sixth cartridge valve G116 is connected to the return pipe T. The first cover valve G17A, the second cover valve G17B, and the third cover valve G17C are all cover valves having a shuttle valve function.
The pressure sensors G15 are connected to the second cartridge G112 and the third cartridge G113, respectively, and are capable of detecting the hydraulic oil pressure flowing through the second cartridge and the third cartridge in real time.
The eleventh electromagnetic directional valve G14A has a solenoid G5YA, the sixth electromagnetic directional valve G14B has a solenoid G6YA, the seventh electromagnetic directional valve G14C has a solenoid G1YA and a solenoid G2YA, and the ninth electromagnetic directional valve G16 has a solenoid G3YA and a solenoid G4 YA.
The second electromagnetic directional valve 26a, the fourth electromagnetic directional valve 27 and the third electromagnetic directional valve 26B are two-position four-way electromagnetic directional valves, the P ports of the second electromagnetic directional valve 26a and the fourth electromagnetic directional valve 27 are connected with a low-pressure oil pipe P1, the A ports are connected with a liquid inlet of the pressure head auxiliary oil cylinder 1, the O ports are connected with a liquid return port of the pressure head auxiliary oil cylinder 1, the B ports are connected with an oil return pipe T, the P port of the third electromagnetic directional valve 26B is connected with a low-pressure oil pipe P1, the A port is connected with a liquid inlet of the demoulding oil cylinder 2, the O port is connected with a liquid return port of the demoulding oil cylinder 2, the B port is connected with the oil return pipe T, and the liquid return port of the oil cylinder demoulding.
The second electromagnetic directional valve 26a is provided with a solenoid D7YA and a solenoid D8YA, the solenoid D7YA controls the opening and closing of the port P and the port A in the second electromagnetic directional valve 26a, and the solenoid D8YA controls the opening and closing of the port B and the port O. The fourth electromagnetic directional valve 27 is provided with an electromagnet D9YA and an electromagnet D10YA, the electromagnet D9YA controls the on-off of the port P and the port A in the fourth electromagnetic directional valve 27, and the electromagnet D10YA controls the on-off of the port B and the port O. The third electromagnetic directional valve 26B is provided with an electromagnet D13YA and an electromagnet D14YA, the electromagnet D13YA controls the opening and closing of the port P and the port A in the third electromagnetic directional valve 26B, and the electromagnet D14YA controls the opening and closing of the port B and the port O.
A first one-way valve 18A is connected between the O port of the second electromagnetic directional valve 26a and the liquid return port of the pressure head auxiliary oil cylinder 1, a second one-way valve 18B is connected between the O port of the fourth electromagnetic directional valve 27 and the liquid return port of the pressure head auxiliary oil cylinder 1, and a third one-way valve 18C is connected between the O port of the third electromagnetic directional valve 26B and the liquid return port of the demoulding oil cylinder 2.
A fourth check valve G21 is connected between the pressure head oil cylinder 3 and the liquid filling oil tank G19, a first electromagnetic reversing valve 17 is connected with a low-pressure oil pipe P1, an electromagnet D11YA and an electromagnet D12YA are arranged in the first electromagnetic reversing valve 17, the first electromagnetic reversing valve 17 is connected with the fourth check valve G21 and an oil return pipe T, if the electromagnet D11YA is electrified, the valve core moves to the right, pressure oil enters the oil return pipe T, if the electromagnet D12YA is electrified, the valve core moves to the left, and the pressure oil enters the fourth check valve G21.
The utility model relates to a high low pressure system's among the static pressure shaping theory of operation as follows:
the product is pressurized by a pressure head for many times in the die to form a building block, at the moment, demoulding is needed, slow demoulding is needed firstly, then fast demoulding is needed, and finally the next round of preparation is carried out, namely the die box is reset.
When the demolding is performed at a slow speed, high-pressure small-flow pressure oil provided by a high-pressure oil pump enters the third cartridge valve G113 from a high-pressure oil pipe P2, the electromagnet G1YA of the seventh electromagnetic directional valve G14C is electrified and then is switched, so that the sixth cartridge valve G116 is closed, meanwhile, the electromagnet G5YA of the G14A of the eleventh electromagnetic directional valve G14B and the electromagnet G6YA of the sixth electromagnetic directional valve G14B are electrified, so that the G14A of the eleventh electromagnetic directional valve G14B and the sixth electromagnetic directional valve G113 and G114 are switched, the upper chambers of the third cartridge valve G113 and the fourth cartridge valve G114 are unloaded and opened, the high-pressure small-flow pressure oil enters the rodless chamber of the demolding cylinder 2 through the cartridge valve G113, and return oil of the rod-shaped chamber of the demolding cylinder 2 flows into the return oil pipe T through the fourth cartridge valve G114 and finally flows back to the demolding oil.
During rapid demoulding, low-pressure large-flow pressure oil provided by a low-pressure oil pump enters a third electromagnetic directional valve 26b through an electro-hydraulic proportional overflow flow control valve after being regulated by the electro-hydraulic proportional overflow flow control valve, an electromagnet D14YA is electrified, a valve core moves to the left, and the pressure oil enters a rodless cavity of a demoulding oil cylinder through the third electromagnetic directional valve 26b, so that rapid demoulding is realized.
When the mold box is reset, low-pressure large-flow pressure oil provided by the low-pressure oil pump enters the electromagnetic reversing valve 26b through the low-pressure oil pipe P1 after being regulated by the electro-hydraulic proportional overflow flow control valve, the electromagnet D13YA is electrified, the valve core moves to the right, and the pressure oil enters a rod cavity of the demolding oil cylinder through the third electromagnetic reversing valve 26b to realize demolding reset (descending).
The fixed ends of the pressure head oil cylinder and the pressure head auxiliary oil cylinder are both installed on a top beam fixed with the frame, the movable ends of the pressure head oil cylinder and the pressure head auxiliary oil cylinder are both installed on a pressure head jacking cross beam, the pressure head jacking cross beam is connected with a pressure head, and the pressure head jacking cross beam can slide up and down along a guide pillar fixedly connected with the frame. The pressure head oil cylinder is a single-action oil cylinder, and the pressure head rises by means of the pressure head auxiliary oil cylinder.
When the pressure head moves down quickly, low-pressure large-flow pressure oil provided by the low-pressure oil pump enters the second electromagnetic directional valve 26a and the fourth electromagnetic directional valve 27 through the electro-hydraulic proportional overflow flow control valve after being subjected to pressure regulation, the electromagnets D8YA and D10YA are electrified, the valve core moves leftwards, and the pressure oil enters a rodless cavity of the pressure head auxiliary oil cylinder through the second electromagnetic directional valve 26a and the fourth electromagnetic directional valve 27, so that the piston of the pressure head auxiliary oil cylinder moves down quickly. Meanwhile, high-pressure small-flow pressure oil provided by the high-pressure oil pump enters the second cartridge valve G112 from a high-pressure oil pipe P2, the electromagnet G3YA of the ninth electromagnetic directional valve G16 is switched after being electrified, the upper cavity of the second cartridge valve G112 is unloaded and opened, and the pressure oil enters the rodless cavity of the pressure head oil cylinder through the second cartridge valve G112. In addition, the electromagnet G2YA of the seventh electromagnetic directional valve G14C is switched after being electrified, the sixth cartridge valve G116 is opened, so that the ram moves downwards quickly, and the oil-filled oil tank supplies oil to the ram cylinder through the one-way valve.
When the pressure head descends at a low speed, low-pressure large-flow pressure oil provided by the low-pressure oil pump enters the second electromagnetic reversing valve 26a through the low-pressure oil pipe P1 after being regulated by the electro-hydraulic proportional overflow flow control valve, the electromagnet D8YA is electrified, the valve core moves left, and the pressure oil enters the rodless cavity of the pressure head auxiliary oil cylinder through the second electromagnetic reversing valve 26a, so that the pressure head auxiliary oil cylinder piston descends at a low speed. Meanwhile, the electromagnet G3YA of the ninth electromagnetic directional valve G16 is electrified to be switched, the upper cavity of the second cartridge valve G112 is unloaded to be opened, pressure oil enters the rodless cavity of the pressure head oil cylinder through the second cartridge valve G112, in addition, the electromagnet G1YA of the seventh electromagnetic directional valve G14C is electrified to be switched, and the sixth cartridge valve G116 is closed, so that the pressure head descends at a low speed.
The pressure head rises by means of the rising of the pressure head auxiliary oil cylinder piston, low-pressure large-flow pressure oil provided by a low-pressure oil pump enters a second electromagnetic reversing valve 26a and a fourth electromagnetic reversing valve 27 through an electro-hydraulic proportional overflow flow control valve after being regulated by the electro-hydraulic proportional overflow flow control valve, an electromagnet D7YA and an electromagnet D9YA are electrified, a valve core moves to the right, and the pressure oil enters a rod cavity of the pressure head auxiliary oil cylinder through the second electromagnetic reversing valve 26a and the fourth electromagnetic reversing valve 27, so that the rising of the pressure head auxiliary oil cylinder piston is realized. Meanwhile, the electromagnet D12YA of the first electromagnetic directional valve 17 is electrified, the valve core moves leftwards, pressure oil enters the fourth one-way valve G21, the fourth one-way valve G21 is opened, pressure head oil cylinder return oil enters the liquid charging oil tank through the fourth one-way valve G21, in addition, the electromagnet G4YA of the ninth electromagnetic directional valve G16 is electrified, the electromagnetic directional valve is switched, and the pressure oil is controlled to enter the upper cavity of the second cartridge valve G112, so that the second cartridge valve is closed.
Claims (10)
1. The high-low pressure system in the static pressure forming is characterized by comprising a pressure head auxiliary oil cylinder (1), a demolding oil cylinder (2), a pressure head oil cylinder (3), a low-pressure oil pipe (P1) connected with a low-pressure oil pump, a high-pressure oil pipe (P2) connected with the high-pressure oil pump and an oil return pipe T connected with an oil tank, wherein a second electromagnetic reversing valve (26a) and a fourth electromagnetic reversing valve (27) are connected between the low-pressure oil pipe (P1) and the pressure head auxiliary oil cylinder (1), a third electromagnetic reversing valve (26b) is connected between the low-pressure oil pipe (P1) and the demolding oil cylinder (2), a first cartridge valve (G111), a second cartridge valve (G112), a third cartridge valve (G113) and a fourth cartridge valve (G114) are sequentially connected between the high-pressure oil pipe (P2) and the demolding oil cylinder (2), and the pressure head oil cylinder (3) is connected with an outlet of the second cartridge valve (.
2. The system of claim 1, wherein the high pressure oil pipe (P2) is connected to a sixth cartridge valve (G116), a fifth cartridge valve (G115) and a fourth cartridge valve (G114) in sequence, and the fifth cartridge valve (G115) is connected to the second cartridge valve (G112).
3. High and low pressure system in static pressure forming according to claim 2, characterized in that the second cartridge valve (G112) is connected with a first cover plate valve (G17A) and a ninth electromagnetic directional valve (G16).
4. A high and low pressure system in static pressure forming according to claim 3, characterized in that the third cartridge valve (G113) is connected with a second cover plate valve (G17B) and an eleventh electromagnetic directional valve (G14A).
5. A high and low pressure system in static pressure forming according to claim 4, characterized in that the fourth cartridge valve (G114) is connected with a third cover plate valve (G17C) and a sixth electromagnetic directional valve (G14B).
6. A high and low pressure system in static pressure forming according to claim 5, characterized in that the pressure regulating valve (G13) and the seventh electromagnetic directional valve (G14C) are connected to the sixth cartridge valve (G116).
7. A high and low pressure system in static pressure forming according to claim 6, characterized in that the sixth cartridge valve (G116) is connected with a return pipe T.
8. The high-low pressure system in static pressure forming according to claim 7, characterized in that the second electromagnetic directional valve (26a), the fourth electromagnetic directional valve (27) and the third electromagnetic directional valve (26B) are two-position four-way electromagnetic directional valves, ports P of the second electromagnetic directional valve (26a) and the fourth electromagnetic directional valve (27) are connected with a low-pressure oil pipe (P1), ports A are connected with a liquid inlet of the pressure head auxiliary oil cylinder (1), ports O are connected with a liquid return port of the pressure head auxiliary oil cylinder (1), ports B are connected with a liquid return pipe T, ports P of the third electromagnetic directional valve (26B) are connected with a low-pressure oil pipe (P1), ports A are connected with a liquid inlet of the demolding oil cylinder (2), ports O are connected with a liquid return port of the demolding oil cylinder (2), ports B are connected with a liquid return pipe T, and a liquid return port of the demolding oil cylinder (2) is connected with a third cartridge valve (G113).
9. The high-low pressure system in the static pressure forming is characterized in that a first check valve (18A) is connected between an O port of the second electromagnetic directional valve (26a) and a liquid return port of the pressure head auxiliary oil cylinder (1), a second check valve (18B) is connected between an O port of the fourth electromagnetic directional valve (27) and the liquid return port of the pressure head auxiliary oil cylinder (1), and a third check valve (18C) is connected between an O port of the third electromagnetic directional valve (26B) and the liquid return port of the demoulding oil cylinder (2).
10. The high-low pressure system in the static pressure forming is characterized in that a fourth one-way valve (G21) is connected between the pressure head oil cylinder (3) and the liquid filling oil tank (G19), a first electromagnetic reversing valve (17) is connected to a low-pressure oil pipe (P1), and the first electromagnetic reversing valve (17) is connected with the fourth one-way valve (G21) and the oil return pipe T.
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CN202022419379.3U CN213598286U (en) | 2020-10-27 | 2020-10-27 | High-low pressure system in static pressure forming |
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CN202022419379.3U CN213598286U (en) | 2020-10-27 | 2020-10-27 | High-low pressure system in static pressure forming |
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