JPS6399191A - Vacuum generator - Google Patents
Vacuum generatorInfo
- Publication number
- JPS6399191A JPS6399191A JP24493986A JP24493986A JPS6399191A JP S6399191 A JPS6399191 A JP S6399191A JP 24493986 A JP24493986 A JP 24493986A JP 24493986 A JP24493986 A JP 24493986A JP S6399191 A JPS6399191 A JP S6399191A
- Authority
- JP
- Japan
- Prior art keywords
- air passage
- compressed air
- suction
- nozzle
- main body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000003584 silencer Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Landscapes
- Manipulator (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は真空発生装置に関するものである。[Detailed description of the invention] (Industrial application field) The present invention relates to a vacuum generator.
（従来の技術）
空気通路内に圧縮空気を通過せしめ、この空気通路に直
交する吸引空気通路内の空気を圧縮空気の粘性により吸
引して吸引空気通路と連通している被真空個所を真空に
するエジェクタ式の真空発生装置は従来から知られてい
る。(Prior art) Compressed air is passed through an air passage, and air in a suction air passage that is perpendicular to the air passage is sucked by the viscosity of the compressed air to evacuate a vacuumed area communicating with the suction air passage. Ejector-type vacuum generators have been known for a long time.
この種真空発生装置の原理図を第５図に、具体例を第６
図に示す。The principle diagram of this type of vacuum generator is shown in Fig. 5, and a specific example is shown in Fig. 6.
As shown in the figure.
すなわち、第５図に示すように、圧縮空気導入口１０か
ら導入された圧縮空気をノズル１２によって流速を増す
と共に、ノズル１２出口に直交して吸引空気通路１４を
開口し、流速の増している圧縮空気の粘性により吸引空
気通路１４例の空気を吸引して圧縮空気と共に排出口１
６から排出することにより吸引空気通路１４側を負圧に
形成するものである。That is, as shown in FIG. 5, the flow velocity of the compressed air introduced from the compressed air inlet 10 is increased by the nozzle 12, and the suction air passage 14 is opened perpendicularly to the outlet of the nozzle 12 to increase the flow velocity. Due to the viscosity of the compressed air, the air in the 14 suction air passages is sucked into the exhaust port 1 along with the compressed air.
By discharging the air from the suction air passage 6, a negative pressure is created on the side of the suction air passage 14.
第６図に示すものは、圧縮空気導入口１０外周の本体部
に雄ねじを形成して本体１８を例えばコンプレッサに接
続可能にすると共に、吸引空気通路１４を管継手の構造
に形成してチューブ２０を接続可能に設けている。また
管継手の部位は本体１８外周に本体の軸線を中心として
回動可能に設けてチューブ２０を任意の方向から接続し
うるようにしている。またさらに、ノズルを第１ノズル
２２、第２ノズル２４の２段に形成して圧縮空気の流速
をさらに増加せしめるようにし、排気は、サイレンサエ
レメント２６を介して本体１８側壁に設けた開口部２８
から行うようにしている。この第６図に示す真空発生装
置もその原理は第５図に示すものと同じである。In the case shown in FIG. 6, a male thread is formed on the main body part on the outer periphery of the compressed air inlet 10 so that the main body 18 can be connected to, for example, a compressor, and the suction air passage 14 is formed in the structure of a pipe joint, and the tube 20 It is provided so that it can be connected. Further, a tube joint portion is provided on the outer periphery of the main body 18 so as to be rotatable about the axis of the main body, so that the tube 20 can be connected from any direction. Furthermore, the nozzles are formed in two stages, the first nozzle 22 and the second nozzle 24, to further increase the flow velocity of the compressed air, and the exhaust air is passed through an opening 28 provided in the side wall of the main body 18 through a silencer element 26.
I try to do it from The principle of the vacuum generating device shown in FIG. 6 is the same as that shown in FIG. 5.
（発明が解決しようとする問題点）
しかしながら上記従来の真空発生装置には次のような問
題点がある。(Problems to be Solved by the Invention) However, the above conventional vacuum generator has the following problems.
すなわち、従来においては圧縮空気導入路と真空発生部
とは互いに直交する位置関係にある。That is, conventionally, the compressed air introduction path and the vacuum generating section are in a positional relationship that is orthogonal to each other.
したがって空間的自由度がそれだけ限定されるのみなら
ず、第６図に示すように、吸引空気通路たる管継手およ
びチューブ２０が本体１８の側方空間に突出するので、
装置全体が大型化すると共に、用途によってはスペース
上控々の障害が生じる問題点がある。Therefore, not only the degree of spatial freedom is limited, but also the pipe fitting and tube 20 serving as the suction air passage protrude into the side space of the main body 18 as shown in FIG.
There are problems in that the overall size of the device increases and, depending on the application, there may be some space constraints.
そこで本発明は上記問題点を解消すべくなされたもので
あり、その目的とするところは、装置全体の小型化が図
れると共にスペース効率に優れる真空発生装置を提供す
るにある。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and its purpose is to provide a vacuum generating device that can be miniaturized as a whole and has excellent space efficiency.
（発明の概要）
上記目的による本発明に係る真空発生装置は、本体に、
圧縮空気導入口および圧縮空気排出口と連通し、ノズル
を備えた空気通路を形成し、前記ノズルの下流側の空気
通路に交差する吸引空気通路を連通した真空発生装置に
おいて、前記圧縮空気導入口を含む空気通路と前記吸引
空気通路とを略同一軸線上に位置するよう設定し、前記
吸引空気通路の一部を前記圧縮空気導入口を含む空気通
路の軸線から外れる位置に曲折して前記ノズルの下流側
の空気通路に交差せしめて成ることを特徴としている。(Summary of the Invention) The vacuum generator according to the present invention for the above purpose has a main body including:
In a vacuum generator, the compressed air inlet communicates with a compressed air inlet and a compressed air outlet, forming an air passage provided with a nozzle, and communicates with a suction air passage that intersects with the air passage downstream of the nozzle. The air passage including the compressed air inlet and the suction air passage are set to be located on substantially the same axis, and a part of the suction air passage is bent to a position deviating from the axis of the air passage including the compressed air inlet to form the nozzle. It is characterized in that it intersects with the air passage on the downstream side of the air passage.
（実施例）
以下添付図面に基づいて本発明の好適な一実施例を詳細
に説明する。(Embodiment) Hereinafter, a preferred embodiment of the present invention will be described in detail based on the accompanying drawings.
第１図は一端に吸着パッドを備えた真空発生装置３０を
示し、第２図はそのＡ−Ａ断面図、第３図はＢ−Ｂ断面
図を示す。FIG. 1 shows a vacuum generator 30 equipped with a suction pad at one end, FIG. 2 shows a cross-sectional view along the line AA, and FIG. 3 shows a cross-sectional view along the line B-B.
図において３１は本体であり、樹脂で一体に形成されて
いる。In the figure, 31 is a main body, which is integrally formed of resin.
本体３１の一端側は圧縮空気導入口３２に形成されてい
る。本実施例においては圧縮空気導入口３２に公知の管
継手が形成されている。すなわちこの管継手は、接続す
べきチューブ３３の外周にくい込んでチューブ３２の抜
は止めをする係止体３４と係止体３４のチューブ３３外
周へのくい込みを解除してチューブ３３の抜脱を可能に
する解放リング３５を備える。なお管継手でなく、外周
を雄ねじ形状に形成してコンプレッサ等の圧力機器へ直
接接続しうるようにしてもよい。A compressed air inlet 32 is formed at one end of the main body 31 . In this embodiment, a known pipe joint is formed at the compressed air inlet 32. In other words, this pipe joint has a locking body 34 that sinks into the outer periphery of the tube 33 to be connected to prevent the tube 32 from being pulled out, and a locking body 34 that is wedged into the outer periphery of the tube 33 to prevent the tube 33 from being pulled out. A release ring 35 is provided to allow this. Note that instead of using a pipe joint, the outer periphery may be formed into a male thread shape so that it can be directly connected to a pressure device such as a compressor.
圧縮空気導入口３２は本体３１内で絞られてノズル３６
に形成されている。ノズル３６下流の空気流路は排気路
であり、第２図から明らかなようにノズル３６下流に直
状に伸びる盲穴状の直状部３７と直状部３７先端から本
体３１外周方向に２叉に分岐した分岐部３８ （第３図
）とに形成されている。該分岐部３８が向かう本体３１
中途部外周は小径に形成され、この小径部を覆って本体
３１外周上に被嵌されたキャップ３９によって空隙Ａが
形成され、この空隙Ａはキャップ３９に設けた透孔４０
によって外気に連通している。The compressed air inlet 32 is constricted within the main body 31 and forms a nozzle 36.
is formed. The air flow path downstream of the nozzle 36 is an exhaust path, and as is clear from FIG. A bifurcated portion 38 (FIG. 3) is formed. The main body 31 toward which the branch 38 is directed
The outer periphery of the midway portion is formed to have a small diameter, and a gap A is formed by a cap 39 that is fitted onto the outer periphery of the main body 31 to cover this small diameter portion.
communicates with the outside air.
４１はねじ体であり、本体３１の圧縮空気導入口３２と
は反対側の端部にその基部において工大固定されている
。ねじ体４１の先端には各種器具（図においては吸着パ
ッド）接続用の雄ねじが形成されている。またねじ体４
１軸線上には、本体３１例の圧縮空気導入路と軸線を一
致して吸引空気通路４２が設けられている。この吸引空
気通路４２は本体３１例の吸引空気通路に連通ずるので
あるが、本体３１側の吸引空気通路は、第２図に明らか
なように、排気路の分岐部３８の分岐する方向とは直交
する方向に分岐する分岐路４３に形成され、該分岐路４
３先端はノズル３６の若干下流の空気通路に横方向から
連通している。Reference numeral 41 denotes a screw body, which is fixed at its base to the end of the main body 31 opposite to the compressed air inlet 32. A male thread for connecting various devices (a suction pad in the figure) is formed at the tip of the screw body 41. Also, screw body 4
On one axis, a suction air passage 42 is provided whose axis coincides with the compressed air introduction passage of the main body 31. This suction air passage 42 communicates with the suction air passage of the main body 31, but as is clear from FIG. It is formed into a branch road 43 that branches in orthogonal directions, and the branch road 4
The tip of the nozzle 36 communicates with the air passage slightly downstream of the nozzle 36 from the lateral direction.
前記した吸着パッド４４は、ねじ体４１の雄ねじ部に脱
着自在に螺着されるのであるが、ねじ体４１の吸引空気
通路４２に接続する吸引空気通路４５を備え、先端には
バンド４６を備えている。The suction pad 44 described above is removably screwed onto the male threaded portion of the screw body 41, and is equipped with a suction air passage 45 connected to the suction air passage 42 of the screw body 41, and a band 46 at the tip. ing.
本実施例は以上のように構成されている。This embodiment is configured as described above.
続いてその動作について説明する。Next, its operation will be explained.
前述した圧縮空気導入口３２には、その管継手機構によ
って、コンプレッサ等の圧力機器（図示せず）から延出
されたチューブ３３が接続される。A tube 33 extending from a pressure device (not shown) such as a compressor is connected to the compressed air inlet 32 described above through a pipe joint mechanism.
しかしてチューブ３３から本体３１内に圧縮空気が送り
込まれると、該圧縮空気はノズル３６を通過する際にそ
の流速が大となって、ノズル３６下流に横方向から開口
している分岐路４３の空気をその粘性によって巻き込み
、排気路３７．３８、空隙部Ａおよび透孔４０から本体
外に排気する。When compressed air is fed into the main body 31 from the tube 33, the flow velocity of the compressed air increases as it passes through the nozzle 36, and the flow rate of the compressed air increases when it passes through the nozzle 36. Air is drawn in due to its viscosity and exhausted from the main body through the exhaust passages 37 and 38, the void A, and the through hole 40.
したがって吸引空気通路４２．４５側は負圧となって、
パッド４６を被吸引物に押圧すれば、被吸引物を吸着す
ることができる。Therefore, the suction air passage 42, 45 side becomes negative pressure,
By pressing the pad 46 against an object, the object can be attracted.
上記のような吸着パッド装置においては、被吸引物を吸
着搬送等するために、装置を被吸引物方向に接離動させ
る必要があるが、本実施例においては、吸引空気通路４
２．４５が本体３１の軸線と一致しているので、本体３
１の接離動方向がそのまま吸着パッド装置の接離動方向
と一致し、正確な制御を行うことができる。In the suction pad device as described above, in order to suction and convey the suction object, it is necessary to move the device toward and away from the suction object, but in this embodiment, the suction air passage 4
2.45 coincides with the axis of the main body 31, so the main body 3
The direction of contact and separation of the suction pad 1 coincides with the direction of contact and separation of the suction pad device, and accurate control can be performed.
なお上記実施例においては、本体３１とねじ体４１とを
別体に設けたが、これらは一体的に設けてもよい。また
さらには、本体３１、ねじ体４１、吸着バッド４４三者
を一体的に設けてもよいことはもちろんである。In the above embodiment, the main body 31 and the screw body 41 are provided separately, but they may be provided integrally. Furthermore, it goes without saying that the main body 31, the screw body 41, and the suction pad 44 may be provided integrally.
第４図はさらに他の実施例を示す。FIG. 4 shows yet another embodiment.
本実施例は本体３１の吸引空気通路４７側にも管継手を
設けている。In this embodiment, a pipe joint is also provided on the suction air passage 47 side of the main body 31.
本実施例においては、圧縮空気送り込み側のチューブ３
３と、吸引側のチューブ４８とを同軸上に位置させ、両
チューブ３３．４８間にやはり真空発生装置３０を同軸
的に配置させることができ、全体が直線状となるのでス
ペース効率に優れたものとなる。In this embodiment, the compressed air feeding side tube 3
3 and the tube 48 on the suction side are positioned coaxially, and the vacuum generator 30 can also be placed coaxially between both tubes 33 and 48, and the whole is in a straight line, resulting in excellent space efficiency. Become something.
なお以上の各実施例において、圧縮空気導入路と吸引空
気通路とは完全に同軸上になくともよく、若干ずれて平
行に位置するのでもよい。In each of the above embodiments, the compressed air introduction passage and the suction air passage do not have to be completely coaxial, but may be slightly shifted and positioned parallel to each other.
また、圧縮空気導入路にノズルを複数段に亘って設けて
圧縮空気の流速をさらに増大させてもよく、さらには、
圧縮空気を適宜なサイレンサエレメントを介して消音し
て排気するようにしてもよいことはもちろんである。Furthermore, the compressed air introduction path may be provided with nozzles in multiple stages to further increase the flow velocity of the compressed air.
Of course, the compressed air may be muffled and exhausted through a suitable silencer element.
（発明の効果）
以上のように本発明に係る真空発生装置によれば、圧縮
空気導入口を含む空気通路と吸引空気通路とが略同一軸
線上に位置するように設定さているので、従来のように
装置全体がＬ字状に構成されることなく略直線上に構成
でき、装置全体の小型化が図れ、またスペース効率に優
れるという著効を奏する。(Effects of the Invention) As described above, according to the vacuum generator according to the present invention, the air passage including the compressed air inlet and the suction air passage are set to be located approximately on the same axis, so that In this way, the entire device can be configured in a substantially straight line without having to be configured in an L-shape, making it possible to reduce the size of the entire device and achieving excellent space efficiency.
以上本発明につき好適な実施例を挙げて種々説明したが
、・本発明はこの実施例に限定されるものではなく、発
明の精神を造膜しない範囲内で多くの改変を施し得るの
はもちろんのことである。Although the present invention has been variously explained above with reference to preferred embodiments, the present invention is not limited to these embodiments, and it goes without saying that many modifications can be made without departing from the spirit of the invention. It is about.
第１図は本発明に係る真空発生装置の正面図、第２図は
そのＡ−Ａ断面図、第３図はそのＢ−Ｂ断面図、第４図
は他の実施例を示す断面図である。
第５図は真空発生装置の原理図、第６図は従来の真空発
生装置の断面図である。
１０・・・圧縮空気導入口、 １２・・・ノズル、
１４・・・吸引空気通路、 １６・・・排出口、 １８
・・・本体、 ２０・・・チューブ、２２・・・第１ノ
ズル、 ２４・・・第２ノズル、２６・・・サイレンサ
エレメント、
２８・・・開口部、 ３０・・・真空発生装置、３１・
・・本体、 ３２・・・圧縮空気導入口、３３・・・チ
ューブ、 ３４・・・係止体、３５・・・解放リング
、 ３６・・・ノズル、３７・・・直状部、 ３８・・
・分岐部、３９・・・キャップ、 Ａ・・・空隙、４０
・・・透孔、 ４１・・・ねじ体、４２・・・吸引空気
通路、 ４３・・・分岐路、４４・・・吸着パッド、
４５・・・吸引空気通路、 ４６・・・パッド、
４７・・・吸引空気通路、 ４８・・・チューブ。
；”ｌ： １図
第２［７Ｉ
第 ３因
第４図
ｎFIG. 1 is a front view of a vacuum generator according to the present invention, FIG. 2 is a cross-sectional view taken along line AA, FIG. 3 is a cross-sectional view taken along line B-B, and FIG. 4 is a cross-sectional view showing another embodiment. be. FIG. 5 is a principle diagram of a vacuum generating device, and FIG. 6 is a sectional view of a conventional vacuum generating device. 10... Compressed air inlet, 12... Nozzle,
14... Suction air passage, 16... Discharge port, 18
... Main body, 20 ... Tube, 22 ... First nozzle, 24 ... Second nozzle, 26 ... Silencer element, 28 ... Opening, 30 ... Vacuum generator, 31・
... Main body, 32... Compressed air inlet, 33... Tube, 34... Locking body, 35... Release ring, 36... Nozzle, 37... Straight part, 38...・
・Branch portion, 39...Cap, A...Gap, 40
... Through hole, 41 ... Screw body, 42 ... Suction air passage, 43 ... Branch path, 44 ... Suction pad,
45... Suction air passage, 46... Pad,
47... Suction air passage, 48... Tube. ;”l: 1 Figure 2 [7I 3rd cause Figure 4 n
Claims (1)
通し、ノズルを備えた空気通路を形成し、前記ノズルの
下流側の空気通路に交差する吸引空気通路を連通した真
空発生装置において、 前記圧縮空気導入口を含む空気通路と前記 吸引空気通路とを略同一軸線上に位置するよう設定し、 前記吸引空気通路の一部を前記圧縮空気導 入口を含む空気通路の軸線から外れる位置に曲折して前
記ノズルの下流側の空気通路に交差せしめて成る真空発
生装置。[Scope of Claims] 1. An air passage is formed in the main body, communicating with a compressed air inlet and a compressed air outlet, and equipped with a nozzle, and communicating with a suction air passage that intersects with the air passage on the downstream side of the nozzle. In the vacuum generating device, an air passage including the compressed air inlet and the suction air passage are set to be located approximately on the same axis, and a part of the suction air passage is connected to the air passage including the compressed air inlet. A vacuum generating device which is bent at a position deviating from the axis of the nozzle and intersects with the air passage on the downstream side of the nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24493986A JPS6399191A (en) | 1986-10-15 | 1986-10-15 | Vacuum generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24493986A JPS6399191A (en) | 1986-10-15 | 1986-10-15 | Vacuum generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6399191A true JPS6399191A (en) | 1988-04-30 |
Family
ID=17126209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24493986A Pending JPS6399191A (en) | 1986-10-15 | 1986-10-15 | Vacuum generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6399191A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02152781A (en) * | 1988-11-30 | 1990-06-12 | Kubota Ltd | Driving device for working hand of suction type |
| JPH02130788U (en) * | 1989-03-30 | 1990-10-29 | ||
| JP2013166640A (en) * | 2012-02-16 | 2013-08-29 | Seki Kogyo Kk | Vacuum suction head and article supply device having the vacuum suction head |
-
1986
- 1986-10-15 JP JP24493986A patent/JPS6399191A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02152781A (en) * | 1988-11-30 | 1990-06-12 | Kubota Ltd | Driving device for working hand of suction type |
| JPH02130788U (en) * | 1989-03-30 | 1990-10-29 | ||
| JP2013166640A (en) * | 2012-02-16 | 2013-08-29 | Seki Kogyo Kk | Vacuum suction head and article supply device having the vacuum suction head |
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