TWM558866U - Electronically controlled pressure boost slow on-off valve - Google Patents

Abstract

An electronically controlled supercharged slow start valve, which is internally provided with a valve chamber of a main passage, which can be used for connecting the primary side pressure and the secondary side pressure on both sides of the valve chamber, and the valve chamber is further provided with a first sliding shaft chamber and a second sliding shaft chamber, wherein the first sliding shaft chamber is provided with a first sliding shaft, and the side wall of the first sliding shaft chamber is provided with a guiding hole connected to the top end of the first sliding shaft chamber, and the second sliding shaft a second sliding shaft is disposed in the room, and the second sliding shaft is respectively provided with a first piston and a second piston at the top and bottom ends, and a third piston is further disposed between the two pistons, and the first piston cooperates with the second piston The top end of the sliding shaft chamber is respectively formed on the upper end surface and the lower end surface of the first piston, and a gas chamber and a pressurizing chamber are respectively formed. The pressurizing chamber is provided with a pressurized through hole communicating with the guiding hole, and the primary side pressure is When the compressed gas flows from the main passage to the second sliding shaft to generate an upward retarding displacement, the compressed gas flowing through the guide hole can be input through the boosting through hole, and the first piston is pushed to make the second sliding shaft upward again. Accelerate the displacement.

Description

Electronically controlled supercharged slow start valve

This author is about an electronically controlled supercharged slow start valve, which is mainly used for the pressure increase of the pneumatic cylinder in the process of gradually increasing the flow rate and pressure, through the first sliding shaft to close the overflow port to achieve energy saving, and more to boost the through hole. Auxiliary control of the second sliding shaft, when the second sliding shaft generates an upward retarding displacement, the compressed gas flowing through the guiding hole can be input through the pressurized through hole, so that the second sliding shaft is rapidly displaced, and the secondary side pressure is Secure and quick to set up.

The pneumatic system is mainly a system that uses compressed gas to transmit pressure and control energy. In order to control the operating state of the system, the valve component is usually placed between the pneumatic cylinder and the air pressure source;

For example, as shown in Fig. 5, the control valve (90) has an input end (92) for inputting compressed gas (97), an output end (93) for outputting gas, and an exhaust end (94) for supplying and exhausting. In addition, the control valve (90) is further provided with an A sliding shaft (95) and a B sliding shaft (96) for actuating the driving of the electromagnetic valve (91), thereby achieving the pressure of the control output end (93). ;

When the solenoid valve (91) drives to open the A-slide shaft (95), the compressed gas (97) at the input end (93) will flow into the A-slide shaft (95), causing the A-slide shaft (95) to shift downward to The exhaust end (94) is actuated to close the exhaust end (94), and the gas at this time will follow the internal passage to the B-slide shaft (96), and when the pressure of the compressed gas (97) reaches a preset target, The B-sliding shaft (96) is displaced downward to open the state, and the compressed gas (97) is passed through the output end (93) for output purposes;

However, please refer to the actual structure of the aforementioned control valve (90) as shown in Fig. 6. It can be seen that during the process, when the A sliding shaft (95) is displaced downward to the exhaust end (94), The slide shaft (95) cannot close the exhaust end (94) in sequence, and then open the input end (92) so that the gas at the input end (92) flows simultaneously to the B slide shaft (96) and the exhaust end (94). Will cause the compressed gas (97) to overflow and be accompanied by high-decibel sharp noise;

Further, a control valve disclosed in the specification of Japanese Patent No. 6076880, wherein the control valve is provided with a primary side 供 for inputting an air pressure source, a secondary side 输出 output to the supply member, and a communication port. a communication hole between the primary side and the secondary side, and a valve hole is arranged in the valve chamber, the piston can be slid therein, and a valve shaft having a tapered portion and a fitting portion is matched with the piston, when compressed After the air enters from the primary side, the valve shaft can be driven to be displaced, and the connecting portion is further penetrated through the tapered portion and the fitting portion, so that the control valve can achieve slow start control of the supplied member, and the conventional structure is simplified. Too complicated question;

The control valve is located in the valve shaft and the piston provided inside the valve seat, or the external throttle structure, and there is no relevant flow path capable of quickly guiding the compressed air to be discharged, or other special structure can assist the row. Gas, so if it is used repeatedly for the control valve, the air pressure inside the valve seat will not be discharged, and the internal pressure will be fully charged to the maximum pressure, which will make the pneumatic cylinder unable to move.

This creation is an electronically controlled supercharged slow-start valve. Its main technical purpose is to use the first sliding shaft to actuate the sequence to first close the overflow to achieve energy saving, and then open the primary side pressure into the main channel, and increase The pressure through hole assists in controlling the second sliding shaft. When the second sliding shaft generates an upward retarding displacement, the compressed gas flowing through the guiding hole can be input through the pressurized through hole, so that the second sliding shaft is rapidly displaced, and the second sliding shaft is rapidly displaced. Side pressure is safely and quickly established.

The electronically controlled supercharged slow start valve of the present invention can supply the compressed gas supplied from the air pressure source to the pneumatic cylinder, which is composed of: a valve chamber provided with a primary side pressure connected to the air pressure source and a second connected pneumatic cylinder a secondary side pressure, and a main passage communicating with the primary side pressure and the secondary side pressure, the valve chamber is further provided with a first sliding shaft chamber and a second sliding shaft chamber, and the first sliding shaft chamber is provided with a first sliding shaft The side wall of the first sliding shaft chamber is provided with a guiding hole that is connected to the top end of the first sliding shaft, and the bottom end of the first sliding shaft chamber is provided with an overflow opening, and the overflow opening is connected to the main passage a second sliding shaft is disposed in the second sliding shaft chamber, and a through hole is disposed in the vertical axis of the second sliding shaft, and the first piston and the second piston are disposed at the top and bottom ends of the second sliding shaft a piston, and a third piston is disposed between the two pistons, and the first piston cooperates with a top end of the second sliding shaft chamber, and respectively forms an air chamber and a pressurization on the upper end surface and the lower end surface of the first piston a pressurized through hole and connected to the guiding hole, when the compressed gas flows from the main passage into the second sliding shaft When the upward retarding displacement is generated, the compressed gas flowing through the guide hole can be input through the boosting through hole, and the first piston is pushed to accelerate the displacement of the second sliding shaft upward again.

The compressed gas is input into the plenum chamber of the second sliding shaft chamber through the electromagnetic valve, and the speed of driving the second sliding shaft to the upward displacement can be accelerated, so that the time taken for switching can be shortened more quickly.

Generally, according to the present creation, the best feasible embodiment, together with the detailed description of Figures 1 to 3B, adds to the understanding of the creation;

The present invention is an electronically controlled supercharged slow start valve (10) capable of supplying a compressed gas (TC) supplied from a pneumatic source (T) to a pneumatic cylinder (K), the electronically controlled supercharged slow start valve (10) The structure includes: a valve chamber (11) having a primary side pressure (P1) connected to the air pressure source (T) and a secondary side pressure (P2) connecting the pneumatic cylinder (K), and a primary side channel (12) connected to the secondary side pressure (P2), and a solenoid valve (101) is disposed above the valve chamber (11);

A first sliding shaft (131) is disposed in the first sliding shaft chamber (13), and a side wall (132) of the first sliding shaft chamber (13) is provided with a guiding hole (133), the guiding hole (133) Connecting to the top end of the first sliding shaft chamber (13), and the bottom end of the first sliding shaft chamber (13) is further provided with an overflow opening (134), the overflow opening (134) and the main passage (12) When the first sliding shaft (131) is displaced in the vertical axial direction, the overflow opening (134) can be opened or closed to allow the compressed gas (TC) in the main passage (12) to be The overflow port (134) performs emission control;

a second sliding shaft (141) is disposed in the second sliding shaft chamber (14). The second sliding shaft (141) is provided with a through hole (142) in a vertical axial direction, and is respectively disposed on the second sliding shaft A first piston (143) and a second piston (146) are disposed at the top and bottom ends of the shaft (141), and a third piston is further disposed between the first piston (143) and the second piston (146) ( 147), the bottom end of the second sliding shaft chamber (14) is further provided with a needle valve (15), the needle valve (15) is coaxial with the second sliding shaft (141), which is slower than the previous one. The valve opening structure can simplify the processing steps and costs, and is more conducive to the space optimization application within the structure. When the needle valve (15) is rotated in the forward and counterclockwise directions, the needle valve (15) and the The aperture of the second piston (146) has a partial gap (1421), and the displacement of the second sliding shaft (141) can be synchronously controlled to open and close, so that the compressed gas (TC) passes through the second sliding shaft chamber (14). The flow and pressure are controlled;

The first piston (143) cooperates with the top end of the second sliding shaft chamber (14), and is respectively formed with an air chamber (144) and a lower end surface (1431) and a lower end surface (1432) of the first piston (143). a plenum (145), wherein the plenum (145) is further provided with a pressurized through hole (1451) and communicates with the guiding hole (133), when the compressed gas (TC) flows into the second channel from the main channel (12) When the sliding shaft chamber (14) causes the second sliding shaft (141) to be displaced upwardly, the compressed gas (TC) flowing through the guiding hole (133) is input through the pressurized through hole (1451) to push the first piston. (143), causing the second sliding shaft (141) to be driven again to generate an upward acceleration displacement.

Wherein, when the pressure source (T) input compressed gas (TC) enters the main passage (12) from the first side pressure (P1), a part of the compressed gas (TC) flows to the first through the guide hole (133). a top end of a sliding shaft chamber (13), more specifically: the guiding hole (133) is connected from the side wall (132) until the valve chamber (11) is connected to the input port (102) of the solenoid valve (101), And an output port (103) of the electromagnetic valve (101) is coupled to the top end of the first sliding shaft chamber (13), and the electromagnetic valve (101) is driven to control input into the first sliding shaft chamber (13). Compressed gas (TC) flow, and the input port (102) and the output port (103) are arranged in different planes, and the guide hole located at the top of the output port (103) to the first sliding shaft chamber (13) (133) further comprising a pressurized through hole (1451), the pressurized through hole (1451) is connected to the plenum (145); and the bottom end of the plenum (145) is further provided with a seal The gasket (1452) can seal the first piston (143) and the pressurized through hole (1451), and after the electromagnetic valve (101) is exhausted, the first piston (143) can smoothly seal the pressurized through hole (1451) , the second sliding shaft (141) is returned to the original position.

When the first sliding shaft (131) is pushed downward by the compressed gas (TC), the overflow port (134) is closed, and the compressed gas (TC) is followed by the main channel (12) to the second sliding. The shaft chamber (14) is circulated, and a gap (1421) exists between the needle valve (15) and the second piston (141), and the compressed gas (TC) enters the air chamber (144) through the through hole (142). After that, when the needle valve (15) reaches a certain flow rate and pressure through the compressed gas (TC) of the gap (1421), the third piston (147) will be pushed to slowly shift the second sliding shaft (141) upward;

While the displacement of the second sliding shaft (141) is actuated, in order to enable the above-described features of the present invention to be understood in detail, it is assumed that the second sliding shaft (141) has a displacement stroke of 5 units, and the initial 0 unit to 2 units. When it is at the slowest speed; when it exceeds 2 units, it starts to accelerate to 5 units to complete the stroke; however, the conventional structure is easy to cause 0 to 2 units due to insufficient gas flow and pressure. Slower, or more than 2 units, still can not smoothly drive the second sliding shaft (141) for subsequent displacement stroke.

Referring again to Figures 4 to 4B, when the solenoid valve (101) outputs a flow of compressed gas (TC) that pushes the first sliding shaft (131) from the output port (103), it will also pass through the supercharging at the same time. The through hole (1451) transports a portion of the compressed gas (TC) into the plenum chamber (145), and in terms of area, the third piston (147) > the first piston (143) > the second piston (146), Therefore, when the compressed gas (TC) is accumulated to a certain flow rate and pressure through the gap (1421) to the secondary side pressure (P2), the third piston (147) is pushed upward, thereby driving the second sliding shaft (141). ) slowly moving upward in the second sliding shaft chamber (14), at this time, the pressurized through hole (1451) will also be supplied by the lower end surface (1432) of the first piston (143) to the compressed gas (TC) to push the first The piston (143) accelerates the upward displacement rate of the second sliding shaft (141), thereby allowing the slow displacement stroke to be completed more quickly, thereby solving the conventional structure due to insufficient flow and pressure, resulting in the second sliding shaft ( 141) The problem of slow displacement and inability to drive smoothly.

In summary, the present electronically controlled supercharged slow start valve (10) can switch the overflow by the first sliding shaft (131) in the process of gradually increasing the input compressed gas (TC) for the pneumatic cylinder (K). The structure of the flow port (134) further solves the problem of overflow and noise of the conventional structure, and the pressurized gas (TC) connected to the guide hole (133) is used to accelerate the input compressed gas (TC). The displacement rate of the two sliding shafts (141) enables the overall structure to operate more smoothly.

(10)‧‧‧Electronically controlled supercharged slow start valve
(101)‧‧‧ solenoid valve
(102)‧‧‧ Input port
(103)‧‧‧ Output
(11) ‧‧‧Valves
(12) ‧‧‧ main channel
(13)‧‧‧First sliding shaft chamber
(131)‧‧‧First sliding shaft
(132)‧‧‧ Sidewall
(133)‧‧‧Guide Hole
(134)‧‧‧Overflow
(14) ‧‧‧Second sliding shaft chamber
(141)‧‧‧Second slide shaft
(142) ‧‧‧through holes
(1421) ‧ ‧ gap
(143)‧‧‧First Piston
(1431) ‧‧‧ upper end
(1432) ‧‧‧ lower end
(144) ‧ ‧ air chamber
(145) ‧ ‧ plenum
(1451)‧‧‧Supercharged through holes
(1452)‧‧‧Seal gasket
(146)‧‧‧Second Piston
(147)‧‧‧ Third Piston
(15)‧‧‧ needle valve
(P1) ‧ ‧ primary side pressure
(P2) ‧ ‧ secondary side pressure
(T) ‧‧‧Pneumatic source
(TC)‧‧‧Compressed gas
(K) ‧ ‧ symbolic description of the customary structure of the pneumatic cylinder
(90)‧‧‧Control valve
(91)‧‧‧ solenoid valve
(92)‧‧‧ Input
(93)‧‧‧ Output
(94)‧‧‧Exhaust end
(95)‧‧‧A sliding shaft
(96)‧‧‧B sliding shaft
(97)‧‧‧Compressed gas

[Fig. 1] is a schematic structural view of a preferred embodiment of the present invention. [Fig. 1A] is a partially enlarged schematic view showing the first diagram of the preferred embodiment of the present invention. [Fig. 2] is a schematic view showing the first sliding shaft of the preferred embodiment of the preferred embodiment in a closed state. [Fig. 2A] is a schematic view showing a state in which the first sliding shaft of the preferred embodiment of the present invention is continuously actuated. [Fig. 2B] is a schematic view showing the state in which the first sliding shaft of the preferred embodiment of the present invention is continuously actuated. [Fig. 3] is a schematic view of the start of the preferred embodiment of the present invention. [Fig. 3A] is a schematic view showing the second sliding shaft of the preferred embodiment of the present invention continuously operated in a closed state. [Fig. 3B] is a schematic view showing the state in which the second sliding shaft of the preferred embodiment of the present invention is continuously actuated. [Fig. 4] is a schematic view showing the control circuit of the preferred embodiment of the present invention in a prepared state. [Fig. 4A] is a schematic view showing the control loop of the preferred embodiment in the slow start state. [Fig. 4B] is a schematic view showing the control circuit of the preferred embodiment of the present invention in an operating state. [Fig. 5] is a schematic diagram of a conventional structure. [Fig. 6] is a schematic structural view of a conventional structure.

Claims (5)

An electronically controlled supercharged slow start valve capable of supplying compressed gas supplied from a pneumatic source to a pneumatic cylinder, comprising: a valve chamber having a primary side pressure connected to the air pressure source, and a secondary side pressure connecting the pneumatic cylinder, And a main passage communicating with the primary side pressure and the secondary side pressure, the valve chamber further comprising a first sliding shaft chamber and a second sliding shaft chamber; a first sliding shaft disposed on the first sliding In the shaft chamber, a sidewall of the first sliding shaft chamber is provided with a guiding hole, the guiding hole is connected to the top end of the first sliding shaft chamber, and an overflow port is arranged at a bottom end of the first sliding shaft chamber. The flow port is connected to the main passage, and when the first sliding shaft is displaced in a vertical axial direction, the overflow opening can be switched; and a second sliding shaft is disposed in the second sliding shaft chamber, the second sliding The shaft is provided with a through hole in the vertical axial direction, and a first piston and a second piston are respectively disposed at the top and bottom ends of the second sliding shaft, and a first piston and the second piston are further disposed between the first piston and the second piston. a third piston, wherein the bottom end of the second sliding shaft chamber is further provided with a needle valve, and the first piston cooperates with the second sliding shaft chamber An air chamber and a plenum chamber are respectively formed on the upper end surface and the lower end surface of the first piston, wherein the plenum chamber is further provided with a boosting through hole communicating with the guiding hole. When the compressed gas flows into the second sliding shaft to generate an upward slow displacement, the compressed gas flowing through the guiding hole is input through the pressurized through hole, and the first piston is pushed to make the second sliding shaft upward again. Accelerate the displacement. The electronically controlled supercharged slow-start valve according to claim 1, wherein an area of the third piston is larger than an area of the first piston, and an area of the first piston is larger than an area of the second piston. The third piston is driven by the compressed gas to cause the second sliding shaft to be driven to generate an upward displacement. The electronically controlled supercharged slow-start valve according to claim 1, wherein when the first sliding shaft is driven to be displaced upward, the overflow opening is synchronously opened; and when the first sliding shaft is driven to be displaced downward Then, the overflow port is synchronously closed, and the switch of the overflow port is controlled by the first sliding shaft sequence to block the flow and discharge of the compressed gas at the same time. The electronically controlled supercharged slow start valve according to claim 1, wherein the needle valve is coaxially disposed with the second sliding shaft, and the needle valve can be rotationally adjusted to control the gap between the needle valve and the second piston. The size, after the compressed gas passing through the gap reaches a certain flow rate and pressure, the third piston has sufficient force to displace the second sliding shaft, and open and close the second side pressure, so that the needle valve can be performed. Controlling the flow and pressure of the compressed gas through the second spool chamber. The electronically controlled supercharged slow-start valve according to claim 1, wherein the plenum further comprises: a sealing gasket disposed at a bottom end of the plenum to seal the first The piston and the pressurized through hole, the first piston can smoothly seal the pressurized through hole when the electromagnetic valve is exhausted, so that the second sliding shaft returns to the original position.