JP2906841B2 - Air supply system for overhead traveling vehicles - Google Patents
Air supply system for overhead traveling vehiclesInfo
- Publication number
- JP2906841B2 JP2906841B2 JP18828092A JP18828092A JP2906841B2 JP 2906841 B2 JP2906841 B2 JP 2906841B2 JP 18828092 A JP18828092 A JP 18828092A JP 18828092 A JP18828092 A JP 18828092A JP 2906841 B2 JP2906841 B2 JP 2906841B2
- Authority
- JP
- Japan
- Prior art keywords
- negative pressure
- pressure tank
- suction cup
- work
- positive pressure
- 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.)
- Expired - Fee Related
Links
Landscapes
- Stacking Of Articles And Auxiliary Devices (AREA)
- De-Stacking Of Articles (AREA)
- Specific Conveyance Elements (AREA)
- Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
- Manipulator (AREA)
- Load-Engaging Elements For Cranes (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ワークの上面を圧縮空
気により清掃してから吸盤により吸着するようにした天
井走行運搬車の空気供給システムに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air supply system for an overhead traveling carrier in which the upper surface of a work is cleaned with compressed air and then sucked by a suction cup.
【０００２】[0002]
【従来の技術】例えば、紡績工場では、パッケージ運搬
用のパレットや中仕切板等（以下、ワークという。）を
運搬するために、天井走行運搬車が用いられている。こ
の天井走行運搬車は、天井を走行する本体から昇降枠を
吊下げ、この昇降枠にワークを保持する吸盤を設けた構
造になっている。2. Description of the Related Art For example, in a spinning factory, an overhead traveling transport vehicle is used to transport a pallet or a partition plate for transporting packages (hereinafter, referred to as a work). The overhead traveling vehicle has a structure in which a lifting frame is suspended from a main body traveling on the ceiling, and a suction cup for holding a work is provided on the lifting frame.
【０００３】従って、ワークの上面は吸盤が確実に吸着
保持できるように常に綺麗な状態であることが要求され
る。[0003] Therefore, the upper surface of the work is required to be always clean so that the suction cup can be surely sucked and held.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、紡績工
場内は風綿が飛散しているため、ワークの上面に風綿が
付着し易く、風綿により吸盤が吸着し難くなり、吸着力
の低下によりワークを搬送途中で脱落させる危険があっ
た。However, since fly wool is scattered in the spinning factory, fly wool tends to adhere to the upper surface of the work, and the sucker becomes difficult to be sucked by the fly wool. There was a risk of the workpiece dropping off during transport.
【０００５】そこで、本発明の目的は、風綿による吸盤
の吸着障害を防止することができ、安全性の向上が図れ
る天井走行運搬車の空気供給システムを提供することに
ある。SUMMARY OF THE INVENTION It is an object of the present invention to provide an air supply system for an overhead traveling vehicle that can prevent suction failure of suction cups caused by fly cotton and improve safety.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
に本発明は、天井を走行する本体からワークを保持する
吸盤を有する昇降枠を吊下げた天井走行運搬車におい
て、上記本体に設けられた真空ポンプと、該真空ポンプ
に接続された負圧タンクと、その真空ポンプの吐出側に
接続され、真空ポンプから吐出される圧縮空気を蓄圧す
るための正圧タンクと、該正圧タンク及び負圧タンクに
接続されて正圧側と負圧側に切換える切換弁とを備え、
上記吸盤がワーク上の所定の高さに降下した時に、切換
弁が正圧側に切換えて、ワークの上面に圧縮空気を噴射
させ、吸盤がワーク上に着地した時に、切換弁を負圧側
に切換えて吸盤に負圧を作用させるようにしたことを特
徴としている。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention is directed to an overhead traveling carriage having a lifting frame having a suction cup for holding a work suspended from a main body traveling on the ceiling. Vacuum pump and the vacuum pump
Negative pressure tank connected to the vacuum pump and the discharge side of the vacuum pump
Connected to accumulate compressed air discharged from vacuum pump
Pressure tank and the positive pressure tank and the negative pressure tank
A switching valve connected to switch between the positive pressure side and the negative pressure side,
When the suction cup is lowered to a predetermined height above the workpiece, switching
The valve switches to the positive pressure side, injects compressed air to the upper surface of the workpiece, and when the suction cup lands on the workpiece , the switching valve is switched to the negative pressure side.
, And a negative pressure is applied to the suction cup.
【０００７】[0007]
【作用】上記の構成によれば、真空ポンプに正圧タンク
と負圧タンクを接続し、ワークの上面を吸盤で吸着する
際に、切換弁を正圧側に切り換えて、圧縮空気を噴射し
て清掃し、吸盤が着地した時に切換弁で負圧側に切り換
えて吸着させるため、ワークの上面に付着する風綿によ
る吸盤の吸着障害が未然に防止される。また真空ポンプ
に正圧タンクと負圧タンクとを接続し、両者を切換弁で
切り換えて圧縮空気の吹き付けと吸盤による吸引とを行
うため、両方の作用が干渉することがなく、また吸着時
は、その吸引力は負圧タンクの負圧で維持されるため、
仮に電源が切れた場合でも、ワークを脱落させる虞がな
く安全である。 According to the above construction, the vacuum pump is connected to the positive pressure tank.
And the negative pressure tank are connected, and the upper surface of the work is sucked by the suction cup.
At this time, the switching valve is switched to the positive pressure side to inject compressed air.
Cleaning, and switch to the negative pressure side with the switching valve when the suction cup lands
Is absorbed by fly wool adhering to the upper surface of the work.
The suction failure of the suction cup is prevented. Also vacuum pump
Connect the positive pressure tank and the negative pressure tank to
Switch to perform compressed air blowing and suction by suction cups.
So that they do not interfere with each other.
, Because its suction power is maintained at the negative pressure of the negative pressure tank,
Even if the power is turned off, there is no danger of dropping the work.
Safe.
【０００８】[0008]
【実施例】以下、本発明の一実施例を添付図面に基づい
て詳述する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the accompanying drawings.
【０００９】図１〜図３において、１はワークを運搬す
るための天井走行運搬車で、この天井走行運搬車１は天
井を走行する本体２と、この本体２から昇降自在に吊下
げられ、ワーク３を保持する吸盤４を有する昇降枠５を
備えている。1 to 3, reference numeral 1 denotes an overhead traveling transport vehicle for transporting a work. The overhead traveling transport vehicle 1 is suspended from a main body 2 traveling on the ceiling and from the main body 2 so as to be movable up and down. A lifting frame 5 having a suction cup 4 for holding the work 3 is provided.
【００１０】本体２は天井に架設したレール６に走行車
輪７を介して懸垂支持され、本体２には下部の昇降枠５
をワイヤあるいは金属ベルト等からなる吊り部材８を介
して巻上げ下げする巻上装置９が設けられている。ま
た、本体２には負圧タンク１０とこれを真空にする真空
ポンプ１１とが設けられ、昇降枠５には真空ポンプ１１
から吐出する圧縮空気を蓄圧するための正圧タンク１２
が設けられている。すなわち、真空ポンプ１１の吸入側
１１ａには負圧タンク１０が接続され、真空ポンプ１１
の吐出側に１１ｂには昇降枠５上の正圧タンク１２が螺
旋状のフレキシブルホース１３を介して接続されてい
る。The main body 2 is suspended and supported by rails 6 installed on the ceiling via running wheels 7, and the main body 2 has a lower lifting frame 5.
There is provided a hoisting device 9 for hoisting and lowering through a suspending member 8 formed of a wire or a metal belt. The main body 2 is provided with a negative pressure tank 10 and a vacuum pump 11 for evacuating the tank.
Positive pressure tank 12 for accumulating the compressed air discharged from
Is provided. That is, the negative pressure tank 10 is connected to the suction side 11a of the vacuum pump 11,
The positive pressure tank 12 on the elevating frame 5 is connected to the discharge side 11b through a spiral flexible hose 13.
【００１１】昇降枠５の下部には複数個の吸盤４が設け
られ、これら吸盤４はパイプ１４を介して共通の切換弁
１５に接続されている。この切換弁１５は正圧タンク１
２と負圧タンク１０を切換えるためのもので、一方には
正圧タンク１２が接続され、他方には本体２上の負圧タ
ンク１０が螺旋状のフレキシブルホース１６を介して接
続されている。A plurality of suction cups 4 are provided below the lifting frame 5, and these suction cups 4 are connected to a common switching valve 15 via a pipe 14. This switching valve 15 is connected to the positive pressure tank 1
The positive pressure tank 12 is connected to one side, and the negative pressure tank 10 on the main body 2 is connected to the other side via a spiral flexible hose 16.
【００１２】負圧タンク１０と正圧タンク１２にはこれ
らをそれぞれの設定圧に維持すべく真空ポンプ１１を運
転させるための圧力ゲージ１７，１８がそれぞれ設けら
れている。例えば、負圧タンク１０の圧力は−500mmHg
に設定される。また、正圧タンク１２には逃し弁１９と
ドレン抜き弁２０が設けられている。特に、正圧タンク
１２を昇降枠５に設けているため、昇降枠５を降下させ
た低い位置で正圧タンク１２のドレン抜きを容易に行う
ことができる。The negative pressure tank 10 and the positive pressure tank 12 are respectively provided with pressure gauges 17 and 18 for operating the vacuum pump 11 to maintain these at the respective set pressures. For example, the pressure of the negative pressure tank 10 is -500 mmHg
Is set to The positive pressure tank 12 is provided with a relief valve 19 and a drain valve 20. In particular, since the positive pressure tank 12 is provided on the lifting frame 5, drainage of the positive pressure tank 12 can be easily performed at a low position where the lifting frame 5 is lowered.
【００１３】そして、天井走行運搬装車１には吸盤４が
ワーク３上の所定高さＨに降下した時にワーク３の上面
に圧縮空気を噴射させ、吸盤４がワーク３上に着地した
時に吸盤４に負圧を作用させる空気供給システムが設け
られている。このシステムを構成するために、昇降枠５
にはワーク３の上面から昇降枠５までの高さを検知する
距離センサ２１と、昇降枠５がワーク３上に着地したこ
とを検知する近接スイッチ２２と、これらの検知信号か
ら切換弁１５の制御を行うコントローラ２３とが設けら
れている。When the suction cup 4 falls to a predetermined height H on the work 3, compressed air is jetted to the upper surface of the work 3 on the overhead traveling transport vehicle 1, and when the suction cup 4 lands on the work 3, the suction cup is sucked. 4 is provided with an air supply system for applying a negative pressure. In order to construct this system, the lifting frame 5
A distance sensor 21 for detecting the height from the upper surface of the work 3 to the lifting frame 5, a proximity switch 22 for detecting that the lifting frame 5 has landed on the work 3, and a switching valve 15 based on these detection signals. A controller 23 for performing control is provided.
【００１４】コントローラ２３は昇降枠５の吸盤４がワ
ーク３上の所定高さＨに降下したことを距離センサ２１
により検知すると、先ず切換弁１５をＯＦＦから正圧タ
ンク１２側に切換え、圧縮空気の噴射によりワーク上面
の清掃を行い、次いで昇降枠５の吸盤４がワーク３に着
地したことを近接スイッチ２２により検知すると、切換
弁１５を正圧タンク１２側から負圧タンク１０側に切換
え、ワーク３を吸着保持するようになっている。The controller 23 informs the distance sensor 21 that the suction cup 4 of the lifting frame 5 has dropped to a predetermined height H on the work 3.
, The switching valve 15 is first switched from OFF to the positive pressure tank 12 side, the upper surface of the work is cleaned by injection of compressed air, and then the proximity switch 22 detects that the suction cup 4 of the lifting frame 5 has landed on the work 3. Upon detection, the switching valve 15 is switched from the positive pressure tank 12 side to the negative pressure tank 10 side to suck and hold the work 3.
【００１５】次に実施例の作用を述べる。ここでは、ワ
ーク３である中仕切板をその置場ＡからパッケージＰ上
に運搬する場合について説明する。先ず、天井走行運搬
車１をワーク３の真上に停止させ、巻上装置９により本
体２から昇降枠５を降下させる。コントローラ２３は昇
降枠５がワーク３上の所定高さＨに降下したことを距離
センサ２１により検知すると、先ず切換弁１５をＯＦＦ
から正圧タンク１２側に切換える。すると、正圧タンク
１２からの圧縮空気が吸盤４からワーク３の上面に噴射
され、ワーク３の上面に付着している風綿やごみ等が清
掃される。Next, the operation of the embodiment will be described. Here, a case will be described in which the intermediate partition plate, which is the work 3, is transported from the storage A to the package P. First, the overhead traveling vehicle 1 is stopped just above the work 3, and the hoisting device 9 lowers the lifting frame 5 from the main body 2. When the distance sensor 21 detects that the lifting frame 5 has dropped to the predetermined height H on the work 3, the controller 23 first turns off the switching valve 15.
To the positive pressure tank 12 side. Then, the compressed air from the positive pressure tank 12 is jetted from the suction cup 4 to the upper surface of the work 3, and the fly dust, dust and the like adhering to the upper surface of the work 3 are cleaned.
【００１６】次いで、コントローラ２３は昇降枠５がワ
ーク３に着地したことを近接スイッチ２２により検知す
ると、切換弁１５を正圧タンク１２側から負圧タンク１
０側に切換える。すると、今度は吸盤４に負圧が作用し
てワーク３を吸着保持するようになるため、この状態で
昇降枠５を巻上げてワーク３を上昇させ、本体２の走行
によりワーク３をパッケージＰの真上に搬送したら、昇
降枠５を巻下げてワーク３をパッケージＰ上に載置す
る。そして、ワーク３をパッケージＰ上に切離すのであ
るが、この場合、切換弁１５を負圧タンク１０側から正
圧タンク１２側に切換えることにより吸盤４から圧縮空
気が噴射されるので、吸盤４からワーク３を極めて容易
に切離すことができる。Next, when the controller 23 detects that the lifting frame 5 has landed on the work 3 by the proximity switch 22, it switches the switching valve 15 from the positive pressure tank 12 side to the negative pressure tank 1.
Switch to 0 side. Then, a negative pressure acts on the suction cup 4 to suck and hold the work 3. In this state, the lifting frame 5 is wound up to raise the work 3, and the main body 2 travels to move the work 3 to the package P. After being transported right above, the lifting frame 5 is lowered and the work 3 is placed on the package P. Then, the work 3 is separated on the package P. In this case, the compressed air is injected from the suction cup 4 by switching the switching valve 15 from the negative pressure tank 10 side to the positive pressure tank 12 side. Can be very easily separated from the workpiece 3.
【００１７】天井走行運搬車１の本体２に、吸盤４に負
圧タンク１０を介して負圧を与える真空ポンプ１１を設
けたので、常時圧縮機を運転させて負圧を生じさせてい
る従来の天井走行運搬車に比して、エネルギー消費が極
めて少なく、また吸盤４が負圧タンク１０により負圧を
維持されるため、仮に電源が切れた場合でも、ワークを
脱落させる虞れがなく、安全である。Since the vacuum pump 11 for applying a negative pressure to the suction cup 4 through the negative pressure tank 10 is provided in the main body 2 of the overhead traveling vehicle 1, the compressor is always operated to generate a negative pressure. Energy consumption is extremely small as compared with the overhead traveling transport vehicle, and the suction cup 4 is maintained at a negative pressure by the negative pressure tank 10. Therefore, even if the power is cut off, there is no danger of dropping the work. It is safe.
【００１８】特に、吸盤４がワーク３上の所定高さＨに
降下した時にワーク３の上面に圧縮空気を噴射させ、吸
盤４がワーク３上に着地した時に吸盤４に負圧を作用さ
せるようにしたので、ワーク３の上面に付着している風
綿やごみ等を迅速容易に除去することができ、吸盤４の
付着障害が防止され、ワーク３を脱落させる虞れがなく
なり、安全性が向上する。しかも、これらの清掃および
吸着動作を距離センサ２１および近接スイッチ２２を用
いてコントローラ２３により一連の動作として行うよう
にしたので、タイムロスがなく、荷役作業の効率が向上
する。In particular, when the suction cup 4 falls to a predetermined height H on the work 3, compressed air is injected onto the upper surface of the work 3, and a negative pressure is applied to the suction cup 4 when the suction cup 4 lands on the work 3. As a result, fly dust, dust and the like adhering to the upper surface of the work 3 can be quickly and easily removed, the adhesion failure of the suction cup 4 is prevented, and there is no danger that the work 3 will fall off. improves. Moreover, since these cleaning and suction operations are performed as a series of operations by the controller 23 using the distance sensor 21 and the proximity switch 22, there is no time loss and the efficiency of the cargo handling operation is improved.
【００１９】なお、実施例では、圧縮空気を噴射するの
に吸盤を利用したが、専用のノズルを用いるようにして
もよい。この場合には、切換弁１５の代わりに負圧タン
ク１０と吸盤４との間および正圧タンク１２とノズルと
の間に弁が必要となる。In the embodiment, the suction cup is used to inject the compressed air, but a dedicated nozzle may be used. In this case, a valve is required between the negative pressure tank 10 and the suction cup 4 and between the positive pressure tank 12 and the nozzle instead of the switching valve 15.
【００２０】[0020]
【発明の効果】以上要するに本発明によれば、真空ポン
プに正圧タンクと負圧タンクを接続し、ワークの上面を
吸盤で吸着する際に、切換弁を正圧側に切り換えて、圧
縮空気を噴射して清掃し、吸盤が着地した時に切換弁で
負圧側に切り換えて吸着させるため、ワークの上面に付
着する風綿による吸盤の吸着障害が未然に防止される。
また真空ポンプに正圧タンクと負圧タンクとを接続し、
両者を切換弁で切り換えて圧縮空気の吹き付けと吸盤に
よる吸引とを行うため、両方の作用が干渉することがな
く、また吸着時は、その吸引力は負圧タンクの負圧で維
持されるため、仮に電源が切れた場合でも、ワークを脱
落させる虞がなく安全である。 In summary, according to the present invention, the vacuum pump
Connect the positive pressure tank and the negative pressure tank to the
When sucking with the suction cup, switch the switching valve to the positive pressure side to
Clean by spraying compressed air, and use the switching valve when the suction cup lands.
Switch to the negative pressure side and attach to the top of the work
The suction failure of the suction cup due to the flying cotton wool is prevented beforehand.
Also connect the positive pressure tank and the negative pressure tank to the vacuum pump,
Both are switched by a switching valve to blow compressed air and sucker
And both actions do not interfere with each other.
During suction, the suction force is maintained at the negative pressure of the negative pressure tank.
The workpiece, even if the power is turned off.
There is no danger of dropping and it is safe.
【図１】本発明の一実施例を示す図である。FIG. 1 is a diagram showing one embodiment of the present invention.
【図２】圧縮空気をワークの上面に噴射して清掃する状
態を示す図である。FIG. 2 is a diagram illustrating a state where cleaning is performed by injecting compressed air onto an upper surface of a work.
【図３】ワークの上面を吸着する状態を示す図である。FIG. 3 is a diagram showing a state in which an upper surface of a work is sucked.
１ 天井走行運搬車 ２ 本体 ３ ワーク ４ 吸盤 ５ 昇降枠 Reference Signs List 1 overhead traveling carrier 2 main body 3 work 4 sucker 5 lifting frame
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ // Ｂ６５Ｈ 67/06 Ｂ６５Ｈ 67/06 Ｄ ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification symbol FI // B65H 67/06 B65H 67/06 D
Claims (1)
る吸盤を有する昇降枠を吊下げた天井走行運搬車におい
て、上記本体に設けられた真空ポンプと、該真空ポンプ
に接続された負圧タンクと、その真空ポンプの吐出側に
接続され、真空ポンプから吐出される圧縮空気を蓄圧す
るための正圧タンクと、該正圧タンク及び負圧タンクに
接続されて正圧側と負圧側に切換える切換弁とを備え、
上記吸盤がワーク上の所定の高さに降下した時に、切換
弁が正圧側に切換えて、ワークの上面に圧縮空気を噴射
させ、吸盤がワーク上に着地した時に、切換弁を負圧側
に切換えて吸盤に負圧を作用させるようにしたことを特
徴とする天井走行運搬車の空気供給システム。1. A vacuum traveling pump provided on a main body of a ceiling traveling carrier having a lifting frame having a suction cup for holding a work suspended from a main body traveling on a ceiling.
Negative pressure tank connected to the vacuum pump and the discharge side of the vacuum pump
Connected to accumulate compressed air discharged from vacuum pump
Pressure tank and the positive pressure tank and the negative pressure tank
A switching valve connected to switch between the positive pressure side and the negative pressure side,
When the suction cup is lowered to a predetermined height above the workpiece, switching
The valve switches to the positive pressure side, injects compressed air to the upper surface of the workpiece, and when the suction cup lands on the workpiece , the switching valve is switched to the negative pressure side.
An air supply system for an overhead traveling carrier, wherein a negative pressure is applied to the suction cup by switching to a suction pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18828092A JP2906841B2 (en) | 1992-07-15 | 1992-07-15 | Air supply system for overhead traveling vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18828092A JP2906841B2 (en) | 1992-07-15 | 1992-07-15 | Air supply system for overhead traveling vehicles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0632584A JPH0632584A (en) | 1994-02-08 |
| JP2906841B2 true JP2906841B2 (en) | 1999-06-21 |
Family
ID=16220891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18828092A Expired - Fee Related JP2906841B2 (en) | 1992-07-15 | 1992-07-15 | Air supply system for overhead traveling vehicles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2906841B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101850902A (en) * | 2010-03-22 | 2010-10-06 | 宁波奇亿金属有限公司 | Leading tape conveying device |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100551240B1 (en) * | 2003-02-14 | 2006-02-09 | 오명수 | automatic load-unload apparatus |
| CN103640955B (en) * | 2013-12-20 | 2015-12-09 | 西南铝业（集团）有限责任公司 | A kind of Acetabula device and hoisting crane |
| CN106378782B (en) * | 2016-11-16 | 2018-11-13 | 浙江工业大学 | The structural system of converter valve hall inner wall clean robot |
-
1992
- 1992-07-15 JP JP18828092A patent/JP2906841B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101850902A (en) * | 2010-03-22 | 2010-10-06 | 宁波奇亿金属有限公司 | Leading tape conveying device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0632584A (en) | 1994-02-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |