CN110017393A

CN110017393A - Automatically controlled boosting type opens valve slowly

Info

Publication number: CN110017393A
Application number: CN201810015369.8A
Authority: CN
Inventors: 游平政; 郑志圣
Original assignee: Shanghai Qilike Pneumatic Equipment Co Ltd
Current assignee: Shanghai Qilike Pneumatic Equipment Co Ltd
Priority date: 2018-01-08
Filing date: 2018-01-08
Publication date: 2019-07-16
Anticipated expiration: 2038-01-08
Also published as: CN110017393B

Abstract

The present invention provides a kind of automatically controlled boosting type and opens valve slowly, inside setting has the valve chamber of main channel, it can be to link the lateral pressure and secondary pressure of valve chamber two sides, the first slide-bar room and the second slide-bar room are additionally provided in valve chamber, the first slide-bar is arranged in first slide-bar room, and first the side wall of slide-bar room be equipped with and be connected to the pilot hole at the first slide-bar ceiling end, and the second slide-bar is arranged in the second slide-bar room, second slide-bar is pushing up, bottom both ends, it is respectively equipped with first piston and second piston, and third piston is additionally provided between two-piston, first piston cooperates the top of the second slide-bar room, respectively in the upper surface of first piston and lower end surface, each self-forming gas chamber and pumping chamber, the pressurization through-hole of connection pilot hole is equipped in pumping chamber, when the compressed gas of a lateral pressure, which flows into the second slide-bar by main channel, generates slow displacement upwards, it can will be oriented to The compressed gas of hole circulation pushes first piston, the second slide-bar is enable to accelerate to be displaced again up through pressurization through-hole input.

Description

Automatically controlled boosting type opens valve slowly

Technical field

The present invention opens valve about a kind of automatically controlled boosting type slowly, mainly for pneumatic cylinder in the mistake for gradually increasing flow and pressure Cheng Zhong is cooperated by the first slide-bar and closes overflow port and reach outside energy conservation, more to be pressurized through-hole auxiliary the second slide-bar of control, the When the generation of two slide-bars is slowly displaced upwards, the compressed gas which circulates can be inputted through the pressurization through-hole, make second to slide Axis fast offset, and secondary pressure is able to safety and quickly establishes.

Background technique

Baric systerm is mainly a kind of system transmitted pressure using compressed gas and control energy, and is to control The operating state of system, it will usually which valve class component is set between pneumatic cylinder and pneumatic supply；

As shown in figure 5, this control valve 90 has the output end for the input terminal 92, output gas that input compressed gas 97 93 and for the exhaust end 94 of exhaust except, the inside of the control valve 90 is additionally provided with A slide-bar 95 and B slide-bar 96, to cooperate The driving of solenoid valve 91 generates actuation, reaches the pressure of control output end 93 whereby；

A slide-bar 95 is opened when the solenoid valve 91 drives, the compressed gas 97 of the input terminal 93 will flow into A slide-bar 95, allow A Slide-bar 95 generates displacement to the actuation down toward exhaust end 94, and so as to closing the exhaust end 94, gas at this time can be logical along inside Road can then be such that B slide-bar 96 is displaced in open state downwards to B slide-bar 96, and when 97 pressure of compressed gas reaches default objects, It allows compressed gas 97 by output end 93, reaches the purpose of output；

However, being please referred to again as shown in fig. 6, it is the practical structures of aforementioned control valve 90, it is seen that during it, when A is sliding When axis 95 is displaced to down toward exhaust end 94, because A slide-bar 95 sequential can not first close exhaust end 94, then input terminal 92 is opened, Make the gas of input terminal 92 while being circulated to B slide-bar 96 and exhaust end 94, will lead to compressed gas 97 and generate flooded conditions, and is attached With the squeal-noise of high-decibel；

Furthermore a kind of control valve as disclosed by No. 6076880 specifications of Japanese Patent Publication No. is recorded by the control It is provided with the primary side port for input pneumatic supply in valve, exports to the secondary side port of supply member and is connected to the primary side port With the intercommunicating pore at secondary side port, and the valve chamber in be equipped with casing bore, can be slided wherein for piston, separately by one have taper The valve shaft of portion and fitting portion cooperates the piston to be arranged, and after compressed air is entered by primary side port, then the valve shaft can be driven to carry out Displacement, by tapered portion and fitting portion, further cooperates the intercommunicating pore, and so that the control valve is reached slowly starting control, this is supplied To component, and simplify the ripe problem excessively complicated with structure；

Aforementioned control valve is located at valve shaft and piston set by valve seat inside or in external throttle structure, does not see The related flow path of discharge can quickly be guided compressed air or separately have other special construction energy auxiliary exhausts by seeing to have, if therefore Progress is being repeated several times in use, the air pressure that will cause inside valve seat can not be discharged for control valve, is leading to internal pressure Power, which is filled, satisfies to maximum pressure, will make the pneumatic cylinder generate can not actuation the case where.

Summary of the invention

The present invention is that a kind of automatically controlled boosting type opens valve slowly, and major technique purpose is to utilize the suitable of the first slide-bar actuation Sequence is first closed overflow port and is reached outside energy conservation, then opens a lateral pressure and enter main channel, more to be pressurized through-hole auxiliary control second Slide-bar can input the compressed gas that the pilot hole circulates through the pressurization through-hole when the second slide-bar generates slow displacement upwards, Make the second slide-bar fast offset, and secondary pressure is able to safety and quickly establishes.

Automatically controlled boosting type of the invention opens valve slowly, can supply the compressed gas that pneumatic supply supplies to pneumatic cylinder, by: one Valve chamber is provided with and connects a lateral pressure of the pneumatic supply and the secondary pressure that connect pneumatic cylinder, and with a side pressure The main channel that power is connected with secondary pressure, the valve chamber are more provided with the first slide-bar room and the second slide-bar room, and the first slide-bar Interior is equipped with the first slide-bar, and the side wall of the first slide-bar room is equipped with the pilot hole for being connected to the top of the first slide-bar, and first is sliding The bottom end of axis room is then equipped with overflow port, and this overflow port is connected to the main channel, and the second slide-bar is equipped in the second slide-bar room, and It is equipped with through hole in vertical axial in second slide-bar, top, the bottom both ends of second slide-bar are respectively equipped with first piston and second Piston, and third piston is equipped between this two-piston, and the first piston cooperates the top of the second slide-bar room, respectively first The upper surface and lower end surface of piston, are each formed with a gas chamber and a pumping chamber, be further provided in the pumping chamber pressurization through-hole and Be connected the pilot hole, can be by pilot hole stream when compressed gas, which flows into the second slide-bar by main channel, generates slow displacement upwards Logical compressed gas is inputted via the pressurization through-hole, pushes first piston, the second slide-bar is enable to accelerate to be displaced again up.

Automatically controlled boosting type above-mentioned opens valve slowly, it is preferable that and the area of the third piston is greater than the area of the first piston, and The area of the first piston is greater than the area of the second piston, when the third piston is by the compressed gas-driven, obtain so that this Two slide-bars are driven by it the actuation for generating and shifting up.

Automatically controlled boosting type above-mentioned opens valve slowly, it is preferable that first slide-bar is driven when shifting up, then synchronous open should Overflow port；And when first slide-bar is driven to bottom offset, then the close synchronously overflow port, passes through the first slide-bar sequencing The switch of the overflow port is controlled, to obstruct the compressed gas while circulation and discharge.

Automatically controlled boosting type above-mentioned opens valve slowly, it is preferable that the needle-valve is arranged coaxially with second slide-bar, can be adjusted with rotating The gap size of whole the noticeable degree needle-valve and second piston makes to reach certain flow and pressure by the compressed gas in the gap Afterwards, which just has enough active forces, and second slide-bar is allowed to be displaced, and opens and closes the second lateral pressure, makes Needle-valve can carry out controlling flow and pressure that the compressed gas passes through the second slide-bar room.

Automatically controlled boosting type above-mentioned opens valve slowly, it is preferable that the pumping chamber has further included: a gasket seal, is set to the increasing The bottom end of pressure chamber can seal the first piston and pressurization through-hole, and after solenoid valve vents, which can smoothly seal the increasing Through-hole is pressed, second slide-bar is made to return to original position.

Automatically controlled boosting type provided by the invention opens valve slowly, mainly for pneumatic cylinder in the process for gradually increasing flow and pressure In, cooperate closing overflow port to reach outside energy conservation by the first slide-bar, more to be pressurized through-hole auxiliary the second slide-bar of control, second When slide-bar generates slow displacement upwards, the compressed gas cooperation pressurization through-hole that pilot hole circulates is input to second by solenoid valve The indoor pumping chamber of slide-bar can accelerate to drive the second slide-bar in the speed shifted up, and secondary pressure is able to safety and fast Run-up is vertical, enables to switch over the consumed time and more quickly shortens.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of present pre-ferred embodiments.

Figure 1A is the partial enlargement diagram of Fig. 1 of present pre-ferred embodiments.

Fig. 2 is the continuous actuation of the first slide-bar of present pre-ferred embodiments in closed mode schematic diagram.

Fig. 2A is status diagram of the continuous actuation of the first slide-bar of present pre-ferred embodiments in unlatching.

Fig. 2 B is status diagram of the continuous actuation of the first slide-bar of present pre-ferred embodiments after unlatching.

Fig. 3 is the schematic diagram of the beginning actuation of present pre-ferred embodiments.

Fig. 3 A is the continuous actuation of the second slide-bar of present pre-ferred embodiments in closed mode schematic diagram.

Fig. 3 B is status diagram of the continuous actuation of the second slide-bar of present pre-ferred embodiments after unlatching.

Fig. 4 is the control loop of present pre-ferred embodiments in the schematic diagram for preparing state.

Fig. 4 A is the control loop of present pre-ferred embodiments in the schematic diagram for opening state slowly.

Fig. 4 B is the control loop of present pre-ferred embodiments in the schematic diagram of working condition.

Fig. 5 is the schematic diagram of well known structures.

Fig. 6 is the structural schematic diagram of well known structures.

Detailed description of the invention:

In Fig. 1-4B:

10... automatically controlled boosting type opens valve slowly

101... solenoid valve

102... input port

103... delivery outlet

11... valve chamber

12... main channel

13... the first slide-bar room

131... the first slide-bar

132... side wall

133... pilot hole

134... overflow port

14... the second slide-bar room

141... the second slide-bar

142... through hole

1421... gap

143... first piston

1431... upper surface

1432... lower end surface

144... gas chamber

145... pumping chamber

1451... being pressurized through-hole

1452... gasket seal

146... second piston

147... third piston

15... needle-valve

P1... a lateral pressure

P2... secondary pressure

T... pneumatic supply

TC... compressed gas

K... pneumatic cylinder

In Fig. 5-6:

90... control valve

91... solenoid valve

92... input terminal

93... output end

94... exhaust end

95...A slide-bar

96...B slide-bar

97... compressed gas

Specific embodiment

Generally according to the present invention, the optimal feasible embodiment, and cooperate schemaAfter figure is described in detail, in order to Increase to understanding of the invention；

Please refer to figureShown, the present invention provides a kind of automatically controlled boosting type and opens valve 10 slowly, can supply pneumatic supply T The compressed gas TC given is supplied to pneumatic cylinder K, and the structure which opens valve 10 slowly includes: a valve chamber 11, two sides With connection pneumatic supply T a lateral pressure P1 and connection pneumatic cylinder K secondary pressure P2 and with a side pressure The main channel 12 that power P1 is connected with secondary pressure P2, the top of this valve chamber 11 are additionally provided with a solenoid valve 101；

One first slide-bar 131 is set in aforementioned first slide-bar room 13, and the side wall 132 for being located at the first slide-bar room 13 is equipped with One pilot hole 133, this pilot hole 133 is connected to the top of the first slide-bar room 13, and the bottom end of the first slide-bar room 13 is separately provided with One overflow port 134, the overflow port 134 are connected with main channel 12, when the first slide-bar 131 is displaced with vertical axial, can make this The actuation that overflow port 134 is opened or closed allows the compressed gas TC in main channel 12 to be able to be arranged by the overflow port 134 Put control；

One second slide-bar 141 is set in the second slide-bar above-mentioned room 14, this second slide-bar 141 is provided in vertical axial One through hole 142, and it is equipped with a first piston 143 and a second piston 146 at the top of second slide-bar 141, bottom both ends respectively, And a third piston 147 is further provided between first piston 143 and second piston 146, and the bottom end of the second slide-bar room 14 is more set There is a needle-valve 15, which is arranged coaxially with second slide-bar 141, and relatively previously ripe opens valve arrangement slowly, so more can Simplify procedure of processing and cost, the space optimization application being more conducive in structure, and with it is suitable, counterclockwise carry out rotation adjustment When needle-valve 15, there is portion gap 1421 by the aperture of needle-valve 15 and second piston 146, it also can synchronously control second slide-bar 141 displacement opens and closes, and compressed gas TC is enable to be controlled by the flow of the second slide-bar room 14 with pressure；

The first piston 143 cooperate the second slide-bar room 14 top, respectively the upper surface of first piston 143 1431 and under End face 1432 is each formed with a gas chamber 144 and a pumping chamber 145, and a pressurization through-hole 1451 is more provided in this pumping chamber 145 And the pilot hole 133 that is connected, when compressed gas TC by main channel 12 flow into the second slide-bar room 14, make the second slide-bar 141 generate Upwards when slow displacement, is inputted by the compressed gas TC that pilot hole 133 circulates through the pressurization through-hole 1451, push first piston 143, it is driven by it second slide-bar 141 and generates acceleration displacement upwards again.

Wherein, when aforementioned pneumatic supply T input compressed gas TC enters to main channel 12 by first time lateral pressure P1, portion is had Partial compression gas TC is flowed to using pilot hole 133 to the top of the first slide-bar room 13, and more specifically: the pilot hole 133 is from side The connection of wall 132 is until be connected the input port 102 of solenoid valve 101 and the delivery outlet by the solenoid valve 101 above the valve chamber 11 103 are attached to the top of the first slide-bar room 13, by driving the solenoid valve 101 to be input in the first slide-bar room 13 to control Compressed gas TC flow, and the input port 102 and the delivery outlet 103 are arranged using Different Plane, and be located at the delivery outlet 103 to The pilot hole 133 of 13 this section of top of the first slide-bar room is additionally provided with a pressurization through-hole 1451, which, which is connected, passes to In the pumping chamber 145；And the bottom end in the pumping chamber 145 is further provided with a gasket seal 1452, can seal the first piston 143 with Be pressurized through-hole 1451, after the exhaust of solenoid valve 101, first piston 143 can smooth sealing type pressure through-hole 1451, make the second slide-bar 141 return to original position.

When 131 compressed gas TC of the first slide-bar promotion is downward, keep the overflow port 134 in closed state, this compressed gas Body TC then circulates along with main channel 12 toward the second slide-bar room 14, and there is portion in aforementioned needle-valve 15 and the aperture of second piston 141 Subdivided gap 1421 must pass through the compression in gap 1421 after compressed gas TC enters gas chamber 144 by through hole 142 to needle-valve 15 When gas TC reaches certain flow and pressure, it will push third piston 147, shift up the second slide-bar 141 slowly；

And the displacement actuation of the second slide-bar 141, to enable foregoing description feature of the invention to be understood in detail, therefore assume the Two 141 whole sections of slide-bar displacement strokes are 5 units, when initial 0 unit to 2 unit, are advanced when for most slow speed；And works as and be more than It is then to start to accelerate to 5 units to have carried out journey stroke after 2 units；However, the ripe gas flow and pressure being easy with structure because of output Deficiency, and 0 unit to 2 units is caused to carry out more slow or already exceed 2 units, and it is sliding still to can not be successfully driving second Axis 141 carries out subsequent displacement stroke.

Figure is please referred to againIt is shown, when solenoid valve 101 is able to push first slide-bar from the output of delivery outlet 103 When 131 compressed gas TC flow, it will also pass through 1451 transport portion compressed gas TC of the pressurization through-hole to the pumping chamber simultaneously In 145, and with area for, 143 > second piston of third 147 > first piston of piston 146, so, compressed gas TC passes through When aforementioned gap 1421 is accumulate to certain flow and pressure to secondary pressure P2, push third piston 147 upward, into And the second slide-bar 141 is driven slowly to shift up in the second slide-bar room 14, at this point, pressurization through-hole 1451 also will be by first piston 143 lower end surface 1432 supplies aforementioned compression gas TC to push first piston 143, and the second slide-bar 141 is made to shift up rate Accelerated, allow the stroke being slowly displaced that can more be rapidly completed whereby, solve whereby it is ripe with structure because of flow and insufficient pressure, And the problem of causing the second slide-bar 141 to be displaced slowly with can not be successfully driving.

In conclusion the automatically controlled boosting type of the present invention opens valve 10 slowly, input compressed gas TC is being gradually increased for pneumatic cylinder K During, the structure of the overflow port 134 can be switched by the first slide-bar 131, and then solve ripe overflow and noise with structure Problem, and the pressurization through-hole 1451 being connected using aforementioned pilot hole 133 allow the compressed gas TC of input to be able to accelerate auxiliary the The rate of displacement of two slide-bars 141, enables overall structure more smoothly to be operated.

Claims

1. a kind of automatically controlled boosting type opens valve slowly, the compressed gas that pneumatic supply supplies can be supplied to pneumatic cylinder, include: a valve Room, have connect the pneumatic supply a lateral pressure, connect the pneumatic cylinder secondary pressure and with a lateral pressure with should The main channel that secondary pressure is connected, the valve chamber are further provided with one first slide-bar room and one second slide-bar room；One first slide-bar, In the first slide-bar room, the side wall of the first slide-bar room is equipped with a pilot hole, which is connected to the first slide-bar room Top, and the bottom end of the first slide-bar room be equipped with an overflow port, which is connected with the main channel, when the first slide-bar When being displaced with vertical axial, the overflow port can be made to carry out switch actuation；One second slide-bar is set in the second slide-bar room, this Two slide-bars are equipped with a through hole in vertical axial, and are equipped with a first piston and one at the top of second slide-bar, bottom both ends respectively Second piston, and a third piston is further provided between the first piston and the second piston, and the bottom end of the second slide-bar room is more Equipped with a needle-valve, which cooperates the top of the second slide-bar room, respectively in the upper surface of the first piston and lower end surface It is each formed with a gas chamber and a pumping chamber；It is characterized by: being further provided with a pressurization of the pilot hole that is connected in the pumping chamber Through-hole can pass through the pilot hole stream when the compressed gas, which flows into second slide-bar by the main channel, generates slow displacement upwards Logical compressed gas is inputted through the pressurization through-hole, pushes first piston, second slide-bar is enable to accelerate to be displaced again up.

2. automatically controlled boosting type according to claim 1 opens valve slowly, which is characterized in that the area of the third piston be greater than this The area of one piston, and the area of the first piston is greater than the area of the second piston, when the third piston is by the compressed gas Driving obtains so that second slide-bar is driven by it the actuation for generating and shifting up.

3. automatically controlled boosting type according to claim 1 opens valve slowly, which is characterized in that first slide-bar, which is driven, to be shifted up When, then it is synchronous to open the overflow port；And when first slide-bar is driven to bottom offset, then the close synchronously overflow port, passes through First slide-bar sequencing controls the switch of the overflow port, to obstruct the compressed gas while circulation and discharge.

4. automatically controlled boosting type according to claim 1 opens valve slowly, which is characterized in that the needle-valve is with second slide-bar in coaxial Setting can make to reach by the compressed gas in the gap to rotate the gap size for adjusting the noticeable degree needle-valve and second piston To after certain flow and pressure, which just has enough active forces, and second slide-bar is allowed to be displaced, and opens and close The second lateral pressure is closed, makes needle-valve that can carry out controlling flow and pressure that the compressed gas passes through the second slide-bar room.

5. automatically controlled boosting type according to claim 1 opens valve slowly, which is characterized in that the pumping chamber has further included: a sealing Gasket is set to the bottom end of the pumping chamber, can seal the first piston and pressurization through-hole, after solenoid valve vents, first work Plug can smoothly seal the pressurization through-hole, and second slide-bar is made to return to original position.