JPH08100799A - Vacuum supplying device - Google Patents

Abstract

PURPOSE: To provide a vacuum supplying device which is used independently, and also used in the form of a manifold, and thereby, improved in its general purpose use. CONSTITUTION: A vacuum supplying device is provided with an excector main body 16, and a block body 14 for communicating a vacuum port 36 and an air supplying port 38 with the excetor main body 16, and the block body 14 is provided with penetrating holes 54a, 54b which constitute an installing means for providing two or more block bodies 14 adjacently to each other, a screw hole 74 for communicating passages provided on the two more block bodies 14 with each other, and a cap screw 76a for sealing the screw hole 74 from the outside.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum supply device which can be used as a single body and can be manifolded.

[0002]

2. Description of the Related Art In recent years, an ejector device has been widely used as a device for sucking air to obtain a vacuum. In this case, the ejector alone is rarely used, and peripheral devices such as a directional control valve, a pressure control valve, a check valve, a suction filter, a silencer, and a pressure switch are attached.

[0003]

By the way, this type of ejector device has different configurations depending on whether it is used alone or when two or more ejector devices are connected in series and used as a manifold. For this reason, the manifolded ejector device cannot be used alone, and a large number of ejector devices must be prepared for various applications, which is uneconomical and inefficient.

The present invention has been made in order to overcome the above-mentioned inconveniences, and it is possible to use it in a manifold form as well as to use it alone, which makes it possible to provide a versatile vacuum supply device. The purpose is to provide.

[0005]

To achieve the above object, the present invention defines a vacuum supply block, a vacuum control switch block, a vacuum control valve valve block, and a fluid passage. A passage block, wherein the passage block is formed separately from at least one of the vacuum supply block, the vacuum control switch block and the vacuum control valve valve block, and a fluid for the vacuum control valve valve block. And a means for attaching the passage block to another adjacent passage block, and an operating means for operating the vacuum control switch from a narrow side surface of the vacuum control switch block. Characterize.

[0006]

In the above vacuum supply device according to the present invention, the passage block is formed separately from any one of the vacuum supply block, the vacuum control switch block, and the vacuum control valve valve block. Therefore, in this vacuum supply device, the blocks can be incorporated as needed, respectively, and they can be connected to form a manifold. Therefore, the vacuum supply device has versatility according to the application.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A vacuum supply apparatus according to the present invention will be described in detail below with reference to the accompanying drawings.

1 to 4, reference numeral 10 denotes an ejector device as an example of a vacuum supply device according to the present invention, and the ejector device 10 serves as a first block body 12 for a suction filter and a passage block. A second block body 14, an ejector body 16 as a vacuum supply block, a plate member 18, a third block body 20 as a vacuum control switch block, a pressure switch 22, and a safety valve 24 as a vacuum control valve valve block. It is composed of an on-off valve 26 and the like operated by electromagnetic operation, and each of the constituent elements is a flat, substantially rectangular parallelepiped or a columnar shape, and a gas passage is formed therein. In addition, the ejector device 10 has a suction filter 28, check valves 30a, 30 inside the ejector device 10.
b, silencer 32, etc. are installed.

First, in the block body 12, a vacuum port 36 and an air supply port 38, which are respectively screw holes, are provided with a recess 40 between the vacuum port 36 and the air supply port 38, and the vacuum port 36 is also provided. The suction filter 28 is installed in a U-shaped passage 42 that communicates with the recess 40. In this case, a passage 39 is defined so as to communicate with the air supply port 38, while the suction filter 28 is configured to be detachable from the recess 40. Next, a sealing member 44 is interposed in the recess 40 and a lid 46 is screwed into the screw 48.
It is attached by inserting screws a and 48b. The block body 12 and the block body 14 are integrated by interposing a seal member 50 between them and threading screws 52a and 52b through the block body 12 and the block body 14 and screwing them together.

Further, the block body 14 is provided with through holes (connection means) 54a to 54c and screw holes 56a and 56b in its wide side surface and lower surface, respectively, and the block body 14 is further provided with a silencer 32 and a check valve. 30a, 30b and a filter 58 are incorporated. The silencer 32 is positioned and fixed by the covers 60a and 60b and the plate 62, as shown in FIG. In this case, the covers 60a and 60b and the plate 62 are provided with a large number of holes in order to sufficiently secure the flow path of the gas exhausted from the silencer 32, and the screw 64
a, 64b cover 60a, block body 14, cover 6
They are integrated by being inserted through 0b and screwed. An internal screw is provided in each of the passage 70 and the passage 72 formed in the block body 14. Also, passage 7
A screw hole (communication means) 74 is formed so as to communicate with 2, and blind screws (closing means) 76a and 76b are screwed into the openings of the screw hole 74. Inner screws are formed in holes 78 and openings 80 formed in the lower surface of the block body 14 to form blind screws 82a,
82b is screwed in.

On the other hand, the ejector body 16 includes a block body 1
4 is provided with a passage 154 that traverses the ejector body 16 so as to communicate with a passage 156 that reaches the silencer 32. Further, the diffuser chambers 140 and 144 are defined so as to correspond to the recesses that house the check valves 30a and 30b. And moreover,
A passage 138 is bored corresponding to the recess that houses the filter 58. Further, the holes 8 are formed in the longitudinal direction of the ejector body 16.
3, the passage 142 and the passage 146 are bored. In this case, when forming the hole 83, a hole 94 having a larger diameter than this is previously prepared.
On the other hand, holes 94a having a larger diameter than these are preferably used to form the passages 142 and 146. Next, a nozzle 88 having an O-ring 84 and a cylindrical member 86 attached is fitted into the hole 83. In addition, in the ejector body 16, one end of the passage 142 is formed in a tapered shape in which the diameter on the diffuser chamber 140 side expands, and is configured to suitably capture the fluid vigorously ejected from the tip of the nozzle 88. deep. Further, in the passage 146, the passage 142
The diameter of the passage 146 is made relatively large so as to sufficiently capture the fluid ejected from the passage. Furthermore, in this case,
As shown in FIG. 6, a recess 90 is formed in the cylindrical member 86, and a passage 92 is formed to connect the recess 90 and the passage of the nozzle 88. Further, inner screws are formed in the holes 94a and 94b, which are bored to form the passages in the ejector body 16, and blind screws 96a and 96b are screwed into the holes.

A seal member (sealing means) 98 and a seal member 100 are interposed between the block body 14 and the ejector body 16 and between the ejector body 16 and the plate member 18, respectively, and the screws 102a and 102b are laminated. Is penetrated from the plate member 18 to the block body 14 and screwed.

On the other hand, the block body 20 has an O-ring 106.
Is mounted, and the screws 108a and 108b are penetrated from the block body 20 to the plate member 18 and screwed to integrate the two. O for the pressure switch 22
Attach the ring 110 (see FIG. 3), screw 112a, 1
12b is inserted into the pressure switch 22 and the block body 20 and tightened to integrate them. in this case,
On the upper surface of the pressure switch 22, a screw 11 for adjusting the pressure setting is provided.
4 and a display section 116 of the pressure state are provided so that the operation or confirmation of the pressure switch 22 can be performed from the upper surface direction. Further, the seal member 118 and the opening / closing valve 26 are mounted on the upper surface of the block body 14, and the screw 1
The three members are integrated by inserting 20a and 120b from the opening / closing valve 26 through the seal member 118 into the block body 14 and tightening them. In this case, lead wires 121a and 121b for inputting a valve operation signal are connected to the upper surface of the on-off valve 26. On the other hand, the O-ring 122 is attached to the safety valve 24, and the screws 124a and 124b are attached to the safety valve 24 and the opening / closing valve 2.
Insert into 6 and tighten them to integrate them. In this case as well, on the upper surface of the safety valve 24, there is a screw 126 for adjusting the flow rate when the valve is operating.
And a port 128 for introducing air when the valve is operated.

It should be noted that all the sealing members are appropriately provided with holes so as not to hinder the connection of the passages and the like, and all of the above-mentioned O-rings are respectively provided to obtain a suitable communication state of the passages. It is installed properly. In this manner, the constituent elements are connected in series, and the ejector device 10 has a plate shape that approximates a flat rectangular parallelepiped, as easily understood from the drawing.

Next, the air passage of the ejector device configured as described above is schematically shown in FIG. 7, and its operation will be described.

First, air is supplied from the pressure source 130 to the on-off valve 26. In this case, the pressure source 130 is connected to the air supply port 38, so that the air supplied to said air supply port 38 is provided with passages 132, 72, screw holes 74 and 13.
4, and is supplied to the on-off valve 26. This air is transferred from the on-off valve 26 to the passage 13 by operating the on-off valve 26.
6. Passing through the filter 58, the passage 1 of the ejector body 16
38, and is vigorously discharged from the nozzle 88, and sequentially passes through the diffuser chamber 140, the passage 142, and the diffuser chamber 144 to reach the passage 146. This time,
Negative pressure is generated in the diffuser chambers 140 and 144,
As a result, the gas is sucked and extracted from the vacuum port 36.
That is, the gas to be sucked and extracted is the vacuum port 36,
The gas passes through the passage 42, the suction filter 28, and the passage 70 in order to reach the passage 148.
And 152 and pass through the check valves 30a and 30b, respectively. Therefore, the air ejected from the nozzle 88 under a predetermined pressure flows into the passage 142, but at this time, the air introduced through the check valve 30a is sucked. Further, the air sent out from the passage 142 is supplied to the diffuser chamber 14
At 4, the air sent through the check valve 30b is sucked. The air that creates a vacuum on the side of the passage 148 in this manner then flows into the passage 146 and passes through the passages 154, 15
It passes through 6 and is sent to the silencer 32. The gas sent to the silencer 32 is silenced, passes through the holes of the covers 60 a and 60 b and the plate 62, and is exhausted to the outside of the ejector device 10. The safety valve 24 is pipe-connected to the passage 150 by passages 160 and 162, and when the vacuum pressure on the suction mechanism side reaches a set value, air is introduced from the port 128 to the passage 150 and the suction mechanism side is closed. Control the vacuum pressure. Further, since the pressure switch 22 is connected to the passage 42 through the passages 164 and 166, the recess 168, and the passages 170 and 172 in this order,
With this pressure switch, an effect of selecting a desired degree of vacuum can be obtained. That is, the pressure switch 22 is actuated in accordance with the vacuum pressure on the suction mechanism side via the conduit, and this state is shown on the display unit 116.

Further, when a plurality of ejector devices 10 are connected in series to form a manifold, the side faces of the ejector devices 10a to 10d can be used in contact with each other as shown in FIG. In this case, the through holes 54a to 5
By forming the long through-holes 4c to be in communication with each other and inserting the bolts 200 constituting the connecting means into the through-holes and screwing them, the ejector devices 10a to 10d can be easily connected and fixed. In this case, in the ejector device in the juxtaposed state, the blind screw 76a (76b) of any one of the outermost ejector devices is screwed into the screw hole 74, and the blind screw 76a of the remaining ejector device, Remove all 76b. Then, the other outer blind screw 76b (76
Connect the pipeline to a). At that time, each ejector device 10a
A suitable seal member is provided between 10 and 10d. As a result, all the screw holes 74 form one communication passage. On the other hand, by closing all of the air supply ports 38 with blind screws or the like, it is possible to achieve manifolding on the air supply side. As described above, even when a plurality of ejector devices are connected in series, the various operations and operations described above can be easily performed without any inconvenience.

[0018]

As described above, in the vacuum supply device according to the present invention, the passage block body is formed separately from the valve block for the vacuum control valve and the fluid communication means for the valve block is provided. There is. Therefore, if the block body is appropriately mounted according to its purpose, it can be used alone as a vacuum supply device. On the other hand, it is possible to use the ejector device as a manifold by connecting the passages of the block bodies with each other by the communicating means and fixing the block bodies independently by the attaching means or by integrally connecting the block bodies. Become. As a result, the single use and the manifolding can be easily performed, it can be effectively used for various purposes, and the versatility is excellent.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of an ejector device as a vacuum supply device according to the present invention.

FIG. 2 is a partial vertical cross-sectional view of an ejector device as a vacuum supply device according to the present invention.

FIG. 3 is a partially omitted exploded perspective view of an ejector device as a vacuum supply device according to the present invention.

FIG. 4 is a partially omitted exploded perspective view of an ejector device as a vacuum supply device according to the present invention.

FIG. 5 is a cross-sectional view of a silencer interior portion in an ejector device as a vacuum supply device according to the present invention.

FIG. 6 is a cross-sectional view of a nozzle and its accessory parts in an ejector device as a vacuum supply device according to the present invention.

FIG. 7 is a configuration diagram of an air flow path of an ejector device as a vacuum supply device according to the present invention.

FIG. 8 is a schematic perspective view provided for explaining a case in which ejector devices as vacuum supply devices according to the present invention are arranged in parallel.

[Explanation of symbols]

 10 ... Ejector device 12, 14 ... Block body 16 ... Ejector main body 20 ... Block body 30a, 30b ... Check valve 36 ... Vacuum port 38 ... Air supply port 54a-54c ... Through hole 70, 72 ... Passage 74 ... Screw hole 76a, 76b ... Blind plug screw 98 ... Seal member 200 ... Bolt

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[Procedure amendment]

[Submission date] September 11, 1995

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be amended] Claims

[Correction method] Change

[Correction content]

[Claims]

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] 0005

[Correction method] Change

[Correction content]

[0005]

To achieve the above object, the present invention defines a vacuum supply block, a vacuum control switch block, a vacuum control valve valve block, and a fluid passage. A passage block, wherein the passage block is formed separately from at least one of the vacuum supply block, the vacuum control switch block and the vacuum control valve valve block, and a fluid for the vacuum control valve valve block. have use communication means, further means for attaching the passage block to another adjacent channel block, and operating means for operating the vacuum control switch from narrow sides of the vacuum control switch block, wherein
Provided on the narrow side surface of the vacuum control switch,
Display means for displaying a pressure state set by the step .

Claims (1)

[Claims] 1. A vacuum supply block, a vacuum control switch block, a vacuum control valve valve block, and a passage block defining a fluid passage, wherein the passage block is the vacuum supply block. At least one of the vacuum control switch block and the vacuum control valve valve block is configured separately and has fluid communication means for the vacuum control valve valve block,
A vacuum supply apparatus further comprising means for attaching the passage block to another adjacent passage block, and operating means for operating the vacuum control switch from a narrow side surface of the vacuum control switch block.