DE2852681A1 - SUCTION BELL SUPPORT - Google Patents

Description

I) 5 ^ 97 -

December 5, 1978

iresto-haschinenfabrik Gottlieb btoll 73 üßlingen / ti

Jjie üri incLung concerns a sow ^ fj; lockenträyer ^ em according to the überbeyriii 'of claim 1.

Such carriers usually have in addition to that with the suction cup to be connected working opening still another, with the latter communicating connection opening ,, which with to be connected to a vacuum pump. Today, building bells are increasingly used to transport a smooth surface on ice Objects such as sheet metal and glass panels used, namely

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even in smaller businesses, do not uelche out of control Vacuum extremely at ions exhaust, hau iuuss ciai'iii ^ esoii-derie vacuum pumps look at and. Lay vacuum lines. lia ^ e ^ e-u barked A pressure luit installation can be found in practically all companies.

The present invention is therefore intended to further develop a suction cup support according to the preamble of claim 1 because it operated using JJrucklutt can be.

Based on what is addressed in the preamble of claim 1 According to the invention, this object is achieved with prior art the features specified in the characterizing part of claim 1.

Advantageous further developments of the iiri'induiig are in subclaims specified.

With the development of the invention according to claim 10, a particularly reliable sealing of the Venturi channel from the atmosphere is obtained.

With the development of the invention according to claim 11 it is achieved that for releasing the suction bell from the workpiece being carried, not only is the application of negative pressure terminated, but also the suction bell is subjected to overpressure, whereby a particularly rapid release of the workpiece is achieved.

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hit cxer we i LeI ¹ LiIdUn ^, ο er -tiri'l ^ _o _,

ereicla, ciai ^; : the pressure accumulator autc-i.,;. oi ^ ch Lu ^ leich Kit o.er Iiibe-triütii.c.iime des Veuturikaiiales with Druckluit ^ ei Liit v.-ira

Jiiii. 'j-'rL ^ er ^, euilfi ^^. isprucii 14 is deslica.lL "special advantage, \ .eil he only shows eixj.en eiut.i ₀ oii Yeiatilkuruer, which so; ühl as kückcelxlac veil til llüh Ji' Ülleii äes i / rucks ^ eicliers as e.ucli as an automatically operated control valve Lv.ischen i / ruckc ^ eicher una ürbeitsöxiii ¹ "^ dieiit.

With the v / eiterbilcuiiQ, the iriiixduii- ^ en'aL ArLsorucli 15, it is achieved that the vitellum body can be taken out of the pressure accumulator as a unit with the volute body. This makes assembly and maintenance much easier.

i, cie Üriinaun ^ j anhaiia is divided by two for example, with reference to the enclosed ^ ei explained in more detail. In these lines:

i ⁽¹ ig. 1 a longitudinal section through a first Sauyg.ocken trä ^ er;

. 2 shows a longitudinal section through a second suction cup carrier in which the suction bell to release the workpiece is automatically pressurized is set.

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BATH ORIGINAL

i ^ 't a Saur ^ lockentril ^ er uiit a u -., house 10, in which a bore in the longitudinal direction vex runs e.uüe. 12 is formed- Dac in the drawing on the left u, ele ;; ene Enae of the bore Λ 2 is stranded with a thread 14- tivoii. blui.tschlauch.es.

In the left cage. der- Bohrunr ij is a 1c. inserted, x ^ elcher has an axial channel 20 aul '.

A nozzle opening 22 is provided in the front end wall of the jector l'usenkör; yers 1c, which widens slightly conically towards the outside. .-

On the outside, the Ejelrtor-Lüsenkkörpers 1 & has a cylindrical surface section L4-, which sits in the press position in the bore 12 and is additionally glued to the wall of the latter. This is followed by a ke ^ eliörnii ^ er surface section 26. The ejector nozzle body 1L is supported with a shoulder 2b on a complementary shoulder of the bore 12.

Similarly, a collector nozzle body 30 is inserted into the bore 12 from the right in a press fit and glued. It has an axial channel 32 _r whose diameter six times as large as the smallest diameter of Düseiiöifnung 22. In the · links situated end face of the collector nozzle 30 has a frusto-conical depression 3 ^ provided liitte in which a angeiormter to the collector nozzle body tubular projection 36 is arranged. The frontal area

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BATH

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the latter ends a small axial distance before the End face of the ejector nozzle body 1 &, so that over a Hingspalt 3-8 a connection to the one through the bore 12, the overlay section 26 of the ejector nozzle body 18 and delimited the recess $ 4 of the collector nozzle body 3ü Hardly is produced. This space is via a radial channel located at the ends of the two nozzle bodies 40 connected to a working opening 42 into which an in the suction cup not shown in the drawing is screwed in.

Imrchgangsbohrungen 44 are used to attach the suction bell support on a hoist.

The suction cup holder described above works as follows:

Via ax εη the u-winch 14 connected compressed air supply line leaves pressurized air to the nozzle opening 22.. When exiting the nozzle opening 22 and when entering in the larger diameter channel 3> 2 the air relaxes, its flow speed increases. Similar to a water jet pump, the A gap 3> £ j pressurizes the working opening 42 with negative pressure .

ji'ig * 2 shows a modified suction cup support in which the working opening at the end of the application of compressed air

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of the ejector nozzle body 18 automatically beauischlagt with Uuerdruck will. "■.

For this purpose, a cylindrical housing is in the enlarged housing 46 Storage canister 45 formed, uelche by a lid 5 <J is locked. This engages with a cylindrical projection 52 in. The storage chamber 4 & and is by means of a Sealing ring 5 ^ sealed against this.

In the cover 50 is a relative to the axis of the storage chamber 4b formed transversely extending channel 56, the is closed at one end by a plug 58 and at the other end via a small axial channel section 60 with an axial channel 62 of the housing 46 in connection stands. A sealing ring 64 is provided at the joint.

In the lower section of the housing, an ejector nozzle body 18 and a collector nozzle body 30 are again arranged in a housing bore 12 in a press fit and glued. These 'parts are designed quite similarly to the suction cup support according to FIG. 1. Corresponding parts are therefore again provided with the same reference numerals and do not need to be described again here.

However, the thread 14 is provided here in an enlarged diameter head 66 of the nozzle body 18, and the latter additionally has a radial channel 68 which communicates between the channel 20 and the Channel 62 establishes.

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Into a blind bore 70 of the cover 50 which intersects the channel% is a pipe 7 ^ inserted fluid-tight, which one having axial channel 74. The latter ends in a larger diameter, cylindrical valve chamber 76, which in an integrally formed cup-shaped end section 7 & of the Kohres 7 ^ is formed. The end face of the end section 7S ends at a distance from the bottom 80 of the storage chamber 46, so that the valve chamber 76 via a ring gap 82 with the storage chamber 48 is related.

A coaxial projection protrudes into the valve chamber 76 from below 84 of the bottom 80 into which an axial channel 86 is provided, which communicates with the bore 12 at one point which is at the free ends of the two nozzle bodies 18 and 30.

Inside the valve chamber 76, a rotationally symmetrical valve body 88 of elastomeric material, which has plane-parallel surfaces 9 0 and 92, which can close the channels 74 or _e 86th The valve body 88 also has an integrally formed, circumferential, conical sealing lip 94, the cross section of which tapers towards the free end. The tip of the cone predetermined by the sealing lip 94 lies in the channel 74.

In the wall of the storage chamber 48 a threaded opening 96 is provided in which a vent plug 98 is arranged, the head of which over a sealing washer

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on the G-ehäuseaußenväna.

The suction clock carrier according to i'ig. 2 works like this ":

To the Uriterdruckbeauischlagunc; the one with the work opening 42 connected suction bell lets compressed air through the again Channel 20 under int voltage flow into channel j? 2. the At the same time, however, compressed air also reaches the valve chamber 76 via the channels 68, 62, 56 and 74, where the elastic chamber presses Sealing lip 94 radially inwards and flows through the hanging gap 82 into the storage chamber 48. At the same time, the valve body pressed into a position closing the channel 86, which is supported by the vacuum built up in the channel 86.

Is in the storage chamber 48, the pressure in the Channel 20 has been reached, the sealing lip 94 is again on the wall of the valve chamber 76 and now prevents Kind of a check valve a backflow of compressed air from the storage chamber 48 into the channel 74. The valve body 88 remains as a result of the diaphragm pressure application (included the application of negative pressure on the circular section of the underside covering the channel 86) in the position closing the channel 86. These conditions under which the working opening 42 is constantly under negative pressure is acted upon, remain unchanged as long as compressed air is provided via the compressed air supply line will. Typically there is then a pressure of about 8 atmospheres in the storage chamber 46.

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If the Druckluitsuiuhr to the channel 20 is interrupted, then the top of the valve body 88 is no longer pressurized. Due to the pressure relief of the outer annular section of the valve body 6 & von the bpeicherkainner & öher xjircl cer valve body 88 quickly pushed upwards, and the pressurized Luit in the storage chamber 4b flows quickly over the channel 86 and the .arbeitsölinung MZ to the suction bell. This means that overpressure is quickly applied to this and is immediately released from the workpiece.

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Claims (1)

i / ezeijiber 197 "
- o & sp i'esto-iiaschinenfabrik Gottlieb Stoll
73 Esslingen / B Suction cup carrier Expectations Mj) Suction bell support with a U-ehäuse, which has a working opening exposed to negative pressure for connection to a
Has suction bell, characterized in that the working opening (4- £) opens transversely into a venturi channel (£ 2, $ 2) acted upon by compressed air. 0 30024 / OA08 _0RiGiN AL INSPECTED 2. carrier according to .an claim 1, characterized in that the Venturi channel through an ejector nozzle (32) and one with this Illuminating ixollector nozzle arranged at an axial distance (i: 2) is formed. 3. Carrier according to claim 2, characterized in that the smallest cross section aer injector nozzle (L2) is approximately equal to one Sixth of the cross section of the collector nozzle (32). 4. Carrier according to claim £ or 3, characterized in that "U, that the injector nozzle (22) is seen in the direction of flow conically expanded. 5. Carrier according to one of claims 2 to 4, characterized in that that the collector nozzle body (30) is frustoconical in the end face facing the ejector nozzle (22) Has recess (34-) in which a cylindrical Collecting tube (36) is arranged. 6. Carrier according to claim 5> characterized in that the opening angle of the frustoconical recess ($ 4) is about 120 °. 7. Carrier according to one of claims 2 to 6, characterized in that that the ejector nozzle body (18) to the nozzle opening tapers conically and that this ejector nozzle body (18) is located in a cylindrical housing bore (12). - 3 030024/0408 δ. Carrier according to claim 7, characterized in that the The opening angle of the ejector nozzle body (18) is about 20 °. 9. Carrier according to one of Claims 1 "to 8, characterized in that that the working opening (42) with a through the end faces of the ejector nozzle body (18) and collector nozzle body (30) limited annular gap (5S) communicates. 10. Carrier according to one of claims 1 to 9, characterized in that that the ejector nozzle body (18) and / or the Collector nozzle body ($ 0) pressed into a housing bore (12) and / or glued in. 11. Carrier according to one of claims 1 to 10, characterized in that that the working opening (42) via a servo valve (76, 88) can be connected to a pressure accumulator (4S), which at the same time as switching off the compressed air supply to the Venturi duct (22, 32) is switched to the open position. 12. Carrier according to claim 11, characterized in that the pressure accumulator (48) is connected via a check valve (94) to the compressed air supply line (20) to the Veriturikanal (22, 32). 13. Carrier according to claim 12, characterized in that the check valve (94) is formed by a flexible skirt of a valve body (88). 14. Carrier according to claim 13, characterized in that the valve body (88) is the valve body of the servo valve 0 300 24/0 4 08 _t ., ui cei ^ ex · ei -utn Le.-iot init α a jr.n ^ eii Cjz & r cut with aem ux-uck in eier Lrucitlui'Lyuiührleitun, _ U ^) I) Gu-Uischlaft is, wUiirenc 'er aui his ^ e ^ eiiucerlie- ^ Ciicei: oeite ii ^. a little ir.ix, ti_ei :. ^ Lsciii ^ itt with υ. en jj3.i. c '(i ir · Ai * beit £ Öi inun _o (, 4 <·) i.iiu s ui eiixeu rii \ x öriui ^ s ^ ^ bsciaii'Lt it uoiii Lruck: ini Jrucks ^ Eicher (.4. -c) beaux- ΧΒΐ. Ί '. 'X ¹ I ¹ ^ (J er jji-.ch ^ syruch "^, a & aurch. ^ Ekeiiaüeichnet, α ^ ΐϊ der' / eiitilkorver (.ob) is arranged in an im v.-esentlicnen ^^ iiiiarischen Ven tilkaniLier C7G) , in one end wall of which a vcrbiiidun ^ sleitiuij; (7 ^) to the Druckluxtzui "uhrleitung (20) niiiiiiied and the opposite btiriivand (.oü) an i'ixiijiörnii ^ en through ^ anti; (O2) limited to the pressure accumulator (4c) and contains a channel (, fcb) which communicates with the Arbeitsöiinun ^ (4L). 16. 'milling cutter according to claim 15? characterized in that the _{apron of the valve body (8b) forming a Hückschla b} valve (9 ^) is designed as a conical light lip diverging towards the second end wall (80) of the valve chamber. 17. Carrier according to claim 16, characterized in that the cross section of the light lip towards its free end decreases. - 5 - 03 002A / 0408 BAD ORIGINAL 18. Carrier according to one of .Ansprüche 15 to iy, thereby. u, ekejan draws that the cup! örmiä formed veiitilkcUüiaer (4-ü) from a lfohr (7L ^; ) cetraren, which from a lid (50). door which is carried in dü.B vifhäus (4-6) of the 'Irakers intt ^ rie pressure accumulator (Λο). 19 · 'l'räyer. Nach AIiSpI ¹ UCh IL, by ^ ekeiniüeichiiel that aer lieckel (, 5 ^) aiuen (5 ^ -) inserted into the öJi-uckkaKiner (4o): ·.,;> Lindrisehen Tors ^ tion (5 ^: -) taii 20. l'rä ^ er according to imsj ^ ruch Ifc ^ or 19, characterized in that the Itohr (7 ^ -) has a transvex'salen ixanal ( ^ b) aes cover (5 ^) and an axial channel (6k) of the housing is not connected to the pressure line (k.ü). 21. Carrier according to one of the ijjrispr-iiche 1 to tu, characterized thereby, that the volume of the pressure accumulator (4L.) is larger as the effective Yoluiaen one to the ü.warbeitsö ± inuxig (4-L) suction bell to be connected. 030024/0408 BATH ORIGINAL