KR101630577B1 - Air reducing on-off valve for vaccum ejector pump - Google Patents

Air reducing on-off valve for vaccum ejector pump Download PDF

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Publication number
KR101630577B1
KR101630577B1 KR1020150085662A KR20150085662A KR101630577B1 KR 101630577 B1 KR101630577 B1 KR 101630577B1 KR 1020150085662 A KR1020150085662 A KR 1020150085662A KR 20150085662 A KR20150085662 A KR 20150085662A KR 101630577 B1 KR101630577 B1 KR 101630577B1
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South Korea
Prior art keywords
vacuum
spool
control
valve
breaking
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KR1020150085662A
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Korean (ko)
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이우승
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이우승
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/14—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid
    • F04F5/16—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids
    • F04F5/20—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids for evacuating
    • F04F5/22—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids for evacuating of multi-stage type

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a vacuum ejector pump for generating a vacuum by generating a negative pressure in a predetermined space as high-speed compressed air flows in and out, and more particularly to a vacuum ejector pump And a vacuum break function for forcibly breaking the vacuum state of the vacuum adsorber. The present invention also relates to a vacuum and vacuum breakdown integral valve for a vacuum ejector pump.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a vacuum and vacuum breakdown integral valve for a vacuum ejector pump,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a vacuum ejector pump for generating a vacuum by generating a negative pressure in a predetermined space as high-speed compressed air flows in and out, and more particularly to a vacuum ejector pump And a vacuum break function for forcibly breaking the vacuum state of the vacuum adsorber. The present invention also relates to a vacuum and vacuum breakdown integral valve for a vacuum ejector pump.

In general, the vacuum ejector pump is provided with a housing partitioned into an inlet chamber, a vacuum chamber and an outlet chamber, and a partition wall between the chambers, and as the high-speed compressed air flows in and out, And a multi-stage ejector for generating negative pressure in the multi-stage ejector.

The vacuum chamber of the housing has a suction port on one side and is connected to an external device, such as a vacuum adsorber, through the suction port. When a negative pressure is generated in the vacuum chamber due to the inflow and outflow of high-speed compressed air into the multi-stage ejector, a vacuum adsorber connected to the suction port of the vacuum chamber also generates a negative pressure and is used to adsorb and convey the article with a generated negative pressure.

Numerous applications exist for multi-stage ejectors for generating negative pressure in the vacuum chamber of the housing. That is, in addition to Patent Registration Nos. 393434, 578540, and 629994, there is also Patent Registration No. 1039470 filed and filed by the present applicant.

As shown in FIG. 1, the multi-stage ejector 20 generally includes a plurality of nozzles 21 arranged in series through barrier ribs between the chambers of the housing 10, And a plurality of slots 22 formed in an outer circumferential surface of the housing 10 so as to pass through the through holes 22a. The through holes 22a are formed to communicate with the vacuum chamber VC of the housing 10, A plurality of flexible valves 23 for opening and closing each of them are provided.

When the high-speed compressed air is discharged from the inlet chamber (IC) of the housing 10 through the plurality of nozzles 21 of the multi-stage ejector 20, the multi-stage ejector 20 as described above, The inside air of the vacuum chamber VC and the vacuum adsorber 60 is attracted and discharged to the outlet chamber OC of the housing 10 together to lower the pressure in the vacuum chamber VC. When the pressure in the vacuum chamber VC of the housing 10 becomes less than the pressure inside the slots 22, all the through holes 22a are closed by the respective valves 23, Level.

Fig. 2 is a perspective view of the embodiment of Fig. 1, in which the vacuum ejector pump is divided into an inlet chamber IC, a central vacuum chamber VC and a rear outlet chamber OC, A multi-stage ejector (20) is installed through the partition walls between the chambers of the housing (10). At one side of the housing 10, an inlet port 11a communicating with the inlet chamber IC from which the high-speed compressed air flows, a vacuum chamber VC And a discharge port 13a communicating with the outlet chamber OC so as to discharge the high-speed compressed air to the outside are respectively passed through the suction port 12a and the communicating suction port 12a. 3, a sub port 12b is formed between the inlet port 11a and the suction port 12a to communicate with the vacuum chamber VC. The sub port 12b is provided with a pressure sensor 30, (VC) or may be connected to the vacuum adsorber 60 of another line together with the suction port 12a. Of course, when the high-speed compressed air is simply discharged through the discharge port 13a, a great noise may be generated. Therefore, the discharge port 13a is provided with the silencer 40 with the silencer incorporated therein.

In order to inject or block high-speed compressed air into the inlet chamber IC of the vacuum ejector pump, an on-off valve 50 (see FIG. 3) is connected to the inlet port 11a communicated with the inlet chamber IC Is installed. The on-off valve 50 is a so-called on / off valve. The on / off valve 50 is a valve that opens and closes the inside of the inlet chamber IC by high pressure compressed air generated from a compressor (not shown) VC) to generate a negative pressure.

The on-off valve 50 functions to introduce or block high-speed compressed air generated from the compressor into the inlet chamber IC and is connected to the suction port 12a communicated with the vacuum chamber VC. The vacuum control function of the vacuum adsorber 60 can not be performed. Accordingly, a separate vacuum release valve (not shown) for performing a vacuum release function in a state where a vacuum is formed together with a separate vacuum control valve (not shown) for performing a vacuum control function of the vacuum adsorber 60 need.

As a conventional technique in which such a vacuum control valve and a vacuum break valve are integrated into a single valve, a vacuum generating / breaking device of Patent Publication No. 10-0454082 and a vacuum and vacuum breaking compound valve of Patent Publication No. 10-0691410 '. However, the above-described conventional technique has a problem that the structure is so complicated that it is difficult to assemble, the size of the whole apparatus becomes large, and the production cost is high.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the problems described above and to provide a vacuum control function for forming or blocking a vacuum from a vacuum ejector pump to a vacuum adsorber and a vacuum break function for forcibly breaking a vacuum state of a vacuum adsorber Vacuum < / RTI > vacuum integrated valve for a vacuum ejector pump.

In particular, it is an object of the present invention to provide a vacuum and vacuum breakdown integral valve for a vacuum ejector pump that can reduce manufacturing costs by lowering the overall size of the apparatus while improving the convenience of assembly by drastically reducing components.

Other objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments with reference to the accompanying drawings.

In order to achieve the above object, the vacuum and vacuum breaker integrated valve for a vacuum ejector pump according to the present invention generates negative pressure in an internal vacuum chamber as high-speed compressed air flows into and out of the vacuum chamber, Which is provided in a vacuum ejector pump for providing a vacuum suction force to the vacuum adsorption device, and a vacuum control function for forming or blocking a vacuum from the vacuum chamber to the vacuum adsorber and a vacuum break function for forcibly breaking the vacuum state of the vacuum adsorption device A vacuum and vacuum breaker integrated valve for an ejector pump, comprising: a valve body; an injection passage formed in the front lower portion of the valve body to penetrate into the valve body and into which compressed air is injected; A front communicating passage formed in a front portion of the valve body, A vacuum control channel communicated with the injection channel and having a rear end connected to a vacuum chamber of the vacuum ejector pump and a vacuum control channel formed at a front upper portion of the valve body to extend to a rear side of the valve body, And a vacuum destroying flow path communicated with the vacuum control flow path and communicating with the vacuum control flow path through a rear communication path formed in the rear of the valve body and having a rear end connected to the vacuum adsorption device, A vacuum control valve for opening and closing a vacuum control valve seat formed inside the vacuum control flow path so as to be slidable along a direction of the vacuum control flow path and located behind the rear communication path; And a vacuum generated in the vacuum destruction flow path so as to be located forward of the rear communication path A vacuum control valve which is installed on the valve body above the vacuum control channel and operates on and off in accordance with an electric signal to move the vacuum control spool forward or backward; And a vacuum breaking electromagnetic valve installed on an upper portion of the valve body above the vacuum breaking passage to be turned on and off according to an electrical signal and moving the vacuum breaking spool forward or backward.

A control fixed spool inserted and fixed so as to close the front end of the vacuum control flow path and restricting forward movement of the vacuum control spool; and a control fixed spool inserted and fixed to seal the front end of the vacuum destroying flow path, And a vacuum breaking spring interposed between the breaking fixing spool and the vacuum breaking spool to provide a spring force to move the vacuum breaking spool backward.

The valve cover may further include an air connection passage communicating with the injection passage at a lower portion thereof and being tightly coupled to the front of the valve body so as to close the front end of the vacuum control passage and the front end of the vacuum release passage, .

Further, the vacuum control flow path includes a front control flow path diameter portion and a rear control flow path diameter portion on the basis of the front communication path, and the vacuum control spool closes the vacuum control valve seat when moving backward, And the vacuum control valve seat is opened when the valve is moved.

The vacuum control solenoid moves the vacuum control spool to the rear when the vacuum control valve is in the OFF state and moves the vacuum control spool forward when the vacuum control valve is in the ON state.

When the vacuum control electronic side is in an OFF state, the compressed air injected through the injection path of the valve body passes through the front communication path through the control channel diameter portion of the vacuum control path, The vacuum control valve seat is closed by moving the vacuum control spool backward to block the vacuum generated from the vacuum chamber from being connected to the vacuum adsorber, When the electromagnetic valve is in the ON state, the compressed air injected through the injection passage of the valve body is blocked by the vacuum control electronic valve to the rear end of the vacuum control spool, And the vacuum control valve seat is moved forward by moving the vacuum control spool forward to open the vacuum control valve seat, That the negative pressure from the vacuum through to the adsorber via the communication to the rear features.

In addition, the vacuum breaking spool closes the vacuum release valve seat upon backward movement and opens the vacuum release valve seat upon forward movement.

The vacuum breaking spool moves the vacuum spool in the backward direction when the vacuum breaking spool is OFF and moves the vacuum spool in a forward direction when the vacuum breaking spool is in the ON state.

In addition, when the vacuum breaking electromagnetic valve is in an OFF state, the vacuum breaking spool is moved backward by a spring force of the vacuum breaking spring to close the injection valve of the valve body, The compressed air injected through the front communication path is connected to the rear end of the vacuum breaking spool by the vacuum breaking electromagnetic valve through the vacuum breaking passage to maintain the state that the vacuum breaking spool is moved backward, The compressed air injected through the injection passage of the valve body is supplied to the vacuum destroying electromagnetic valve via the rear communication path and the vacuum evacuator is connected to the vacuum adsorber, The connection of the vacuum breakage spool to the rear end thereof is cut off to stay in the vacuum breakage passage, And the vacuum release valve seat is opened so that the compressed air injected into the injection channel through the opened vacuum release valve seat flows to the vacuum adsorber, And the vacuum state of the adsorber is destroyed.

The vacuum and vacuum breaker integrated valve for a vacuum ejector pump according to the present invention has a vacuum control function for forming or blocking a vacuum from a vacuum ejector pump to a vacuum adsorber and a vacuum break function for forcibly breaking a vacuum state of the vacuum adsorber , The components can be drastically reduced to improve the convenience of assembly, and the overall size of the apparatus can be reduced to reduce the production cost.

1 is a side sectional view of a general vacuum ejector pump,
Figure 2 is a perspective view of the embodiment of Figure 1,
FIG. 3 is a perspective view showing an on-off valve of the vacuum ejector pump according to the prior art in FIG. 1,
FIG. 4 is a perspective view of a vacuum ejector pump according to an embodiment of the vacuum and vacuum breaker integrated valve for a vacuum ejector pump according to the present invention,
FIG. 5 is a perspective view showing only a vacuum and vacuum fracture integrated valve according to an embodiment of the present invention shown in FIG. 4,
Figure 6 is a front view of the embodiment of Figure 5,
FIG. 7 is a rear view of the embodiment of FIG. 5,
Figure 8 is an exploded perspective view of the embodiment of Figure 5,
Fig. 9 is a front view of the valve body in the embodiment of Fig. 8,
Fig. 10 is a rear view of the valve body in the embodiment of Fig. 8,
FIG. 11 is a bottom view of the valve body in the embodiment of FIG. 8,
12 and 13 are side cross-sectional views showing a vacuum control process as viewed from the line A-A 'in the embodiment of FIG. 5,
FIGS. 14 and 15 are side cross-sectional views showing the vacuum breaking process as viewed from line B-B 'of the embodiment of FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a vacuum and vacuum breaker integrated valve for a vacuum ejector pump according to the present invention will be described in detail with reference to the accompanying drawings.

The vacuum and vacuum breaker integrated valve for a vacuum ejector pump according to the present invention has a structure in which negative pressure is applied to an internal vacuum chamber (VC) as high-speed compressed air flows in and out as shown in Figs. 4 to 15 with reference to Fig. Is provided in a vacuum ejector pump (100) which generates vacuum adsorption force to a vacuum adsorber (50) connected to the vacuum chamber (VC) by generating a vacuum from the vacuum chamber (VC) And a vacuum breaking function for forcibly breaking the vacuum state of the vacuum adsorber 50 are also provided.

The vacuum ejector pump 100 may be any vacuum ejector pump capable of generating a vacuum by generating a negative pressure in a vacuum chamber VC provided in the multi-stage ejector 20. For example, referring to FIG. 1, an inlet chamber IC, a vacuum chamber VC, and an outlet chamber OC are partitioned, respectively, as shown in FIG. 4, and an inlet chamber IC, A housing 110 through which an inlet port 111, a suction port 112 and an outlet port 113 for communicating the chambers VC and the outlet chambers OC, respectively, and the partition walls between the chambers And a multi-stage ejector 20 for generating a vacuum by generating a negative pressure in the vacuum chamber VC of the housing 110 as the compressed air flows in and out. Since the operation of the housing 110 and the multi-stage ejector 20 according to the specific structure and function can be realized by the conventional art, detailed description thereof will be omitted. In the vacuum ejector pump 100 configured as described above, the rear end of the vacuum control channel 212 is connected to the suction port (not shown) of the vacuum ejector pump 100 so that the rear end of the vacuum control channel 212 is connected to the vacuum chamber VC inside the housing 110 of the vacuum ejector pump 100 112 and the rear end of the vacuum breakage channel 213 is connected to the vacuum adsorber 50. [ That is, the vacuum control flow path 212 is connected to the suction port 112 of the housing 110 and the vacuum destruction flow path 213 via the nipple or the air tube, respectively, with the vacuum adsorber 50.

4, the housing 110 of the vacuum ejector pump 100 is formed between the inlet port 111 and the suction port 112 so as to communicate with the outside and the vacuum chamber VC And further includes a sub port 112-1. As shown in FIG. 4, the sub port 112-1 is connected to a pressure sensor 30 for measuring the degree of vacuum in the vacuum chamber VC or other adsorption device.

As shown in FIGS. 4 to 15, in order to realize the vacuum breakdown function together with the vacuum control function, the vacuum and vacuum breaker integrated valve 200 for a vacuum ejector pump according to the present invention has a valve body 210, And includes a flow path 211, a vacuum control flow path 212, a vacuum breaking path 213, a vacuum control spool 220, a vacuum breaking spool 230, a vacuum control valve 240 and a vacuum breakdown valve 250 And further includes a control fixing spool 221, a breaking fixing spool 231, a vacuum breaking spring 232, and a valve cover 260.

First, as shown in FIG. 8 to FIG. 15, the valve body 210 performing a frame function as an external appearance of the vacuum and vacuum fracture integrated valve 200 of the present invention has a rectangular parallelepiped shape, A control flow passage 212 and a vacuum breakage flow passage 213 are formed.

The injection flow path 211 is formed in the front lower portion of the valve body 210 and penetrates into the valve body 210 to inject compressed air. High-speed compressed air generated from a compressor (not shown) is principally injected into the inlet chamber IC through the inlet port 111 of the vacuum ejector pump 100 as shown in FIG. 4, but the vacuum and vacuum of the present invention Compressed air may be injected into the injection path 211 for driving the destructive integral type valve 200.

The vacuum control channel 212 is formed in a front upper portion of the valve body 210 and extends to the rear of the valve body 210. The vacuum control channel 212 is connected to the vacuum control channel 212 through the front communication path 214 formed in the front of the valve body 210, And the rear end thereof is connected to the vacuum chamber VC of the vacuum ejector pump 100. Accordingly, the compressed air injected through the injection path 211 enters the front of the vacuum control flow path 212 through the front communication path 214. The rear end of the vacuum control channel 212 is connected to the vacuum chamber VC of the vacuum ejector pump 100. The vacuum chamber VC and the vacuum adsorber 50 ) To be connected or cut off to form a vacuum.

The vacuum breakage channel 213 is formed at a front upper portion of the valve body 210 to the rear of the valve body 210 and is connected to the injection flow channel 211 and the vacuum control flow channel 212 and communicates with the vacuum control flow path 212 through a rear communication path 215 formed in the rear of the valve body 210 and has its rear end connected to the vacuum adsorber 50. Therefore, the compressed air injected through the injection path 211 enters the front of the vacuum destruction flow path 213 through the front communication path 214. The rear end of the vacuum breakage channel 213 is connected to the vacuum adsorber 50. The rear of the vacuum breakage channel 213 is communicated with the rear of the vacuum breakage channel 213 through the rear and rear communication passages 215, The vacuum chamber VC and the vacuum adsorber 50 can be connected or disconnected from each other. The connection or disconnection between the vacuum chamber VC and the vacuum adsorber 50 is performed through a vacuum control spool 220 described later.

8, 12 and 13, the vacuum control spool 220 is installed in the vacuum control flow path 212 so as to be slidable along the longitudinal direction, and is disposed rearward of the rear communication path 215 And the vacuum control valve seat 216 formed inside the vacuum control flow path 212 is opened and closed. 12, the negative pressure generated from the rear end of the vacuum control flow path 212 connected to the vacuum chamber VC is communicated with the rear side of the vacuum control valve seat 216 in the state that the vacuum control valve seat 216 is closed, And a vacuum can not be formed in the vacuum adsorber 50 connected to the rear end of the vacuum breakage channel 213. When the vacuum control spool 220 opens the vacuum control valve seat 216 as shown in Fig. 13, the negative pressure generated from the rear end of the vacuum control flow path 212 connected to the vacuum chamber VC, And a vacuum is formed in the vacuum adsorber 50 connected to the rear end of the vacuum breakage channel 213 through the rear communication path 215 by the generation of negative pressure. As a result, it is possible to control the vacuum control spool 220 to form a vacuum in the vacuum adsorber 50 by opening or closing the vacuum control valve seat 216.

8, 14, and 15, the vacuum breakage spool 230 is slidably installed along the longitudinal direction inside the vacuum breakage channel 213, and is positioned forward of the rear communication passage 215 The vacuum release valve seat 217 formed inside the vacuum release passage 213 is opened and closed. 14, when the vacuum release valve seat 217 is closed, a negative pressure generated in the vacuum chamber VC flows through the rear communication path 215 to the vacuum destruction flow path 213 So that a vacuum is formed in the vacuum adsorber 50 connected to the rear end of the vacuum breakage channel 213. 15, when the vacuum release valve seat 217 is opened, the compressed air injected from the injection flow passage 211 passes through the vacuum release valve seat 217 and is vacuum-broken Flows to the rear of the flow path 213 and reaches the vacuum adsorber 50 connected to the rear end of the vacuum break-off path 213, so that the vacuum state of the vacuum adsorber 50 can be forcibly destroyed. As a result, the vacuum breaker spool 230 can control the vacuum adsorber 50 to maintain a vacuum or forcibly break it by opening or closing the vacuum release valve seat 217.

The vacuum control valve 240 and the vacuum release valve seat 217 can be opened and closed by moving the vacuum control spool 220 and the vacuum breakage spool 230 back and forth to open and close the vacuum control valve seat 216 and the vacuum release valve seat 217, A breaking electron valve 250 is provided. That is, the vacuum control electronic valve 240 is installed on the valve body 210 above the vacuum control flow path 212 and operates on / off according to an electric signal. . In addition, the vacuum breaking electromagnetic valve 250 is installed on the valve body 210 above the vacuum breaking channel 213 and operates on and off according to an electric signal. The vacuum breaking spool 230 is moved forward or backward . The vacuum control solenoid valve 240 and the vacuum breaker solenoid valve 250 are solenoid valves that operate in accordance with an electrical signal. The solenoid valve is a directional switching valve that switches the direction of the compressed air injected through the injection path 211 described above. The construction and operation of the electromagnetic valve are well known in the art and will not be described in detail.

In order to allow the vacuum control spool 220 and the vacuum breakage spool 230 to move back and forth according to the on / off operation of the vacuum control electromagnetic valve 240 and the vacuum breaker electromagnetic valve 250, the control fixing spool 221, And may further include a valve cover 260 together with the spool 231 and the vacuum breaking spring 232.

The control fixed spool 221 is inserted and fixed to seal the front end of the vacuum control flow path 212, and limits the forward movement of the vacuum control spool 220. The breakage fixing spool 231 is inserted and fixed so as to seal the front end of the vacuum breakage channel 213 and restricts the forward movement of the vacuum breakage spool 230. At this time, the vacuum breaking spring 232 is interposed between the breaking fixing spool 231 and the vacuum breaking spool 230 to provide a spring force to move the vacuum breaking spool 230 backward. It is preferable that each of the control fixing spool 221 and the breaking fixing spool 231 be inserted into the vacuum control flow path 212 and the vacuum breaking flow path 213 and fixed firmly, Is installed. That is, the valve cover 260 has an air connection passage 261 communicating with the injection passage 211 at a lower portion thereof. The front end of the vacuum control passage 212 and the front end of the vacuum destruction passage 213 are And is tightly coupled to the front of the valve body 210 so as to be closed.

More detailed vacuum control and vacuum destruction control will be described from the respective constitutions of the vacuum and vacuum destroying integrated valve 200 according to the present invention described above.

The vacuum control flow path 212 includes a front control flow path diameter portion 212a and a rear control flow path diameter portion 212b on the basis of the front communication path 214. The vacuum control pathway 212 includes a vacuum control spool 220, Closes the vacuum control valve seat 216 when it is moved backward, and opens the vacuum control valve seat 216 when it is moved forward. At this time, the vacuum control valve 240 moves the vacuum control spool 220 in the OFF state and moves the vacuum control spool 220 in the forward direction when the vacuum control valve 240 is in the ON state.

12 and 13, when the vacuum control electronic valve 240 is in the OFF state, the compressed air injected through the injection flow path 211 of the valve body 210 flows through the front communication Is connected to the rear end of the vacuum control spool 220 by the vacuum control solenoid 240 through the control flow path diameter portion 212a of the vacuum control flow path 212 through the passage 214, 220 is moved backward to close the vacuum control valve seat 216 to block the negative pressure generated from the vacuum chamber VC from being connected to the vacuum adsorber 50. On the other hand, when the vacuum control valve 240 is in the ON state, the compressed air injected through the injection passage 211 of the valve body 210 is guided to the vacuum control spool 240 by the vacuum control valve 240, The connection of the vacuum control valve seat 220 to the rear end of the vacuum control valve 220 is interrupted to stay in the control channel diameter portion 212a of the vacuum control flow path 212, So that a negative pressure generated from the vacuum chamber VC is connected to the vacuum adsorber 50 through the rear communication path 215.

Next, the vacuum breaking spool 230 closes the vacuum release valve seat 217 when it is moved backward, and opens the vacuum release valve seat 217 when it is moved forward. At this time, the vacuum breaker solenoid 250 moves the vacuum breaker spool 230 rearward when the vacuum breaker spool 230 is in an OFF state and moves the vacuum breaker spool 230 forward when the vacuum breaker spool 230 is in an ON state.

14 and 15, when the vacuum breaking electromagnetic valve 250 is in the OFF state, the vacuum breaking spool 230 is moved backward by the spring force of the vacuum breaking spring 232 The compressed air injected through the injection passage 211 of the valve body 210 in a state in which the vacuum release valve seat 217 is closed passes through the vacuum communication passage 213 through the front communication passage 214, The vacuum breaker spool 230 is connected to the rear end of the vacuum breaker spool 230 by the vacuum breaker solenoid 250 so that the vacuum breaker spool 230 is moved backward, And is connected to the vacuum adsorber (50) through a rear communication path (215). In contrast, when the vacuum breaking electromagnetic valve 250 is in the on state, the compressed air injected through the injection flow passage 211 of the valve body 210 flows into the vacuum destroying spool 250 by the vacuum breaking electromagnetic valve 250, The connection of the vacuum breakage spool 230 to the rear end of the vacuum breakage spool 230 is interrupted and stays in the vacuum breakage channel 213. The vacuum breakage springs 230 are compressed and the vacuum breakage spool 230 is moved forward, The sheet 217 is opened and the compressed air injected into the injection path 211 through the opened vacuum release valve seat 217 flows into the vacuum adsorber 50 and the vacuum of the vacuum adsorber 50 Destroy the state.

As described above, the vacuum and vacuum breaker integrated valve for a vacuum ejector pump according to the present invention has a vacuum control function for forming or blocking a vacuum from the vacuum ejector pump 100 to the vacuum adsorber 50, And a vacuum break function for forcibly breaking the vacuum state are provided together. By reducing the number of components, it is possible to reduce the overall size of the apparatus and reduce the production cost while improving the convenience of assembly.

The embodiments of the present invention described above and shown in the drawings should not be construed as limiting the technical idea of the present invention. The scope of protection of the present invention is limited only by the matters described in the claims, and those skilled in the art will be able to modify the technical idea of the present invention in various forms. Accordingly, such improvements and modifications will fall within the scope of the present invention as long as they are obvious to those skilled in the art.

IC: inlet chamber
VC: vacuum chamber
OC: outlet chamber
20: Multistage ejector
50: vacuum adsorber
100: Vacuum ejector pump
110: housing 111: inlet port
112: Suction port 112-1: Sub port
113: exhaust port
200: Vacuum and vacuum breakdown integral valve
210: valve body 211:
212: Vacuum control flow path
212a: control channel diameter portion 212b: control flow axis diameter portion
213: Vacuum destruction flow path 214:
215: rear communication path 216: vacuum control valve seat
217: Vacuum release valve seat
220: vacuum control spool 221: control fixed spool
230: Vacuum breaking spool
231: Failure fixing spool 232: Vacuum breaking spring
240: Vacuum control electronic valve
250: vacuum breaker
260: valve cover 261: air connection channel

Claims (9)

A vacuum pump is installed in a vacuum ejector pump for generating negative pressure in an internal vacuum chamber as high-speed compressed air flows in and out, thereby providing a vacuum adsorption force to a vacuum adsorber connected to the vacuum chamber, and a vacuum is formed from the vacuum chamber to the vacuum adsorber And a vacuum break function for forcibly breaking a vacuum state of the vacuum adsorber, wherein the vacuum and vacuum break-up type valve for a vacuum ejector pump comprises:
A valve body,
An injection passage formed in the front lower portion of the valve body to penetrate into the valve body to inject compressed air,
A valve body disposed in a front upper portion of the valve body and communicating with the injection passage through a front communication path formed in a front portion of the valve body, and a rear end connected to a vacuum chamber of the vacuum ejector pump, A control channel,
The vacuum cleaner according to any one of claims 1 to 3, further comprising: a vacuum cleaner which is connected to the vacuum cleaner through the front communication path, A vacuum breakage channel communicating with the control channel and having a rear end connected to the vacuum adsorber,
A vacuum control valve for opening and closing a vacuum control valve seat formed inside the vacuum control flow path so as to be slidable along the longitudinal direction inside the vacuum control flow path and located behind the rear communication path;
A vacuum breakage spool installed inside the vacuum breakage channel so as to be slidable along the longitudinal direction and opening / closing a vacuum release valve seat formed inside the vacuum breakage passage so as to be located forward of the rear communication passage;
A vacuum control electronic valve installed on an upper portion of the valve body above the vacuum control channel and operated on and off according to an electric signal to move the vacuum control spool forward or backward;
A vacuum breaking vacuum valve for vacuum ejector pump which is installed on the upper portion of the valve body above the vacuum breakage channel and which is operated on and off according to an electric signal to move the vacuum breakage spool forward or backward; Integral valve.
The method according to claim 1,
A control fixed spool inserted and fixed so as to close the front end of the vacuum control flow path and restricting forward movement of the vacuum control spool,
A breakage fixing spool inserted and fixed so as to seal the front end of the vacuum breakage passage and restricting forward movement of the vacuum breakage spool,
Further comprising a vacuum breaking spring interposed between the breaking fixing spool and the vacuum breaking spool to provide a spring force to move the vacuum breaking spool backward.
3. The method of claim 2,
And a valve cover which is tightly coupled to the front of the valve body so as to close the front end of the vacuum control flow path and the front end of the vacuum breakage flow path, Vacuum and Vacuum Failure Integrated Valves for Vacuum Ejector Pumps.
3. The method of claim 2,
The vacuum control flow path includes:
A front control channel diameter portion and a rear control channel diameter portion on the basis of the front communication path,
The vacuum control spool
Wherein the vacuum control valve seat is closed when the valve is moved backward, and the vacuum control valve seat is opened when the valve is moved forward.
5. The method of claim 4,
The vacuum control electronic valve may include:
Wherein the vacuum control spool is moved backward when the vacuum control spool is in the OFF state and is moved forward when the vacuum control spool is in the ON state.
6. The method of claim 5,
When the vacuum control electronic side is in the OFF state,
The compressed air injected through the injection passage of the valve body is connected to the rear end of the vacuum control spool by the vacuum control solenoid via the control passage diameter portion of the vacuum control passage through the front communication passage, Closing the vacuum control valve seat by moving the spool rearward to block the negative pressure generated from the vacuum chamber from being connected to the vacuum adsorber,
When the vacuum control electronic side is in an ON state,
The compressed air injected through the injection channel of the valve body is disconnected from the rear end of the vacuum control spool by the vacuum control solenoid and stays in the control channel diameter portion of the vacuum control channel, And a negative pressure generated from the vacuum chamber is connected to the vacuum adsorber through the rear communication passage by moving the vacuum control valve seat forward to open the vacuum control valve seat.
3. The method of claim 2,
Wherein the vacuum breaking spool includes:
Wherein the vacuum release valve seat is closed when the valve is moved backward, and the vacuum release valve seat is opened when the valve is moved forward.
8. The method of claim 7,
The vacuum breaker-
Wherein the vacuum evacuation spool is moved backward when the vacuum evacuation spool is in an OFF state and the vacuum evacuation spool is moved forward when the vacuum evacuation spool is in an ON state.
9. The method of claim 8,
When the vacuum breaking electromagnetic valve is OFF,
And the vacuum release spool is moved backward by the spring force of the vacuum release spring, so that the compressed air injected through the injection passage of the valve body in a state where the vacuum release valve seat is closed is passed through the front communication passage And the vacuum breaker spool is connected to the rear end of the vacuum breaker spool by the vacuum breaking electromagnetic valve via the breaking channel to maintain the state that the vacuum breaker spool is moved backward so that a negative pressure generated from the vacuum chamber is transmitted to the vacuum adsorber Connected,
When the vacuum breaker electromagnetic valve is in the ON state,
The compressed air injected through the injection passage of the valve body is blocked by the vacuum breaker electromagnetic valve to the rear end of the vacuum breaker spool so as to stay in the vacuum breaker passage and compress the vacuum breaker spring, The vacuum release valve seat is opened by moving the vacuum breakage spool forward to break the vacuum state of the vacuum adsorber while flowing the compressed air injected into the injection path through the opened vacuum release valve seat to the vacuum adsorber And the vacuum and vacuum breakdown integral valve for a vacuum ejector pump.
KR1020150085662A 2015-06-17 2015-06-17 Air reducing on-off valve for vaccum ejector pump KR101630577B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109681477A (en) * 2019-02-28 2019-04-26 星宇电子(宁波)有限公司 A kind of vacuum generator timing means
CN109737213A (en) * 2019-02-28 2019-05-10 星宇电子(宁波)有限公司 A kind of vacuum generator pilot-operated type switching device
CN114173897A (en) * 2020-06-19 2022-03-11 维泰克株式会社 Air valve unit for vacuum system

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KR100571595B1 (en) * 2005-10-11 2006-04-17 한국뉴매틱(주) Vacuum generating device having a air guide panel
JP2009166153A (en) * 2008-01-15 2009-07-30 Koganei Corp Vacuum generator

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KR20040011571A (en) * 2004-01-09 2004-02-05 한국뉴매틱(주) Vacuum ejector device
KR100571595B1 (en) * 2005-10-11 2006-04-17 한국뉴매틱(주) Vacuum generating device having a air guide panel
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Publication number Priority date Publication date Assignee Title
CN109681477A (en) * 2019-02-28 2019-04-26 星宇电子(宁波)有限公司 A kind of vacuum generator timing means
CN109737213A (en) * 2019-02-28 2019-05-10 星宇电子(宁波)有限公司 A kind of vacuum generator pilot-operated type switching device
CN109681477B (en) * 2019-02-28 2023-09-15 星宇电子(宁波)有限公司 Timing device for vacuum generator
CN114173897A (en) * 2020-06-19 2022-03-11 维泰克株式会社 Air valve unit for vacuum system
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