EP1767281A2 - Tête de pulvérisation adaptable - Google Patents

Tête de pulvérisation adaptable Download PDF

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Publication number
EP1767281A2
EP1767281A2 EP06450134A EP06450134A EP1767281A2 EP 1767281 A2 EP1767281 A2 EP 1767281A2 EP 06450134 A EP06450134 A EP 06450134A EP 06450134 A EP06450134 A EP 06450134A EP 1767281 A2 EP1767281 A2 EP 1767281A2
Authority
EP
European Patent Office
Prior art keywords
securing part
base body
spray nozzle
spherical cap
swivel
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.)
Withdrawn
Application number
EP06450134A
Other languages
German (de)
English (en)
Other versions
EP1767281A3 (fr
Inventor
Hubert Knoth
Rudolf Knoth-Bambule
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Knoth Automation GmbH
Original Assignee
Knoth Automation GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Knoth Automation GmbH filed Critical Knoth Automation GmbH
Publication of EP1767281A2 publication Critical patent/EP1767281A2/fr
Publication of EP1767281A3 publication Critical patent/EP1767281A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
    • B05B15/65—Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits
    • B05B15/652—Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits whereby the jet can be oriented
    • B05B15/654—Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits whereby the jet can be oriented using universal joints

Definitions

  • the invention relates to an adjustable spray nozzle, in particular for cleaning devices, according to the preamble of patent claim 1.
  • Object of the present invention is to avoid these disadvantages and to provide a solution that ensures safe and durable even under production conditions, an optimal cleaning result.
  • the spray nozzle of the type described above has two different operating states.
  • the pivoting body In the first operating state, the pivoting body is held exclusively by the sealing element and is thus movable in dependence on the tightening torque of the securing part.
  • the tightening torque of the securing part In a second operating state, the tightening torque of the securing part is increased so far that the cutting edge engages in the swivel body and this plastically deformed. In this way, the current setting can be made irreversible, so that even if a loosening of the security part should occur, the setting is not lost.
  • a particular advantage in this context is that the plastic deformation of the swivel body for the user is easily recognizable by the suddenly increased resistance, which is opposite to the screwing of the security part.
  • a particularly favorable embodiment of the invention provides that the concave spherical cap-shaped bearing surface is provided on the base body. In this way, a large-area support of the swivel body can be achieved.
  • a particularly large pivoting range can be achieved in that an external thread is provided on the base body, which cooperates with an internal thread of the security part to hold it.
  • a cost-effective design of the sealing element is achieved in that an O-ring is used.
  • a compact and reliable design is given if the sealing element is arranged directly in the region of the annular cutting edge.
  • a particularly simple and cost-effective production can be achieved if the sealing element rests against the convex spherical cap-shaped outer surface of the pivoting body and when the annular cutting edge engages in the convex spherical cap-shaped outer surface of the pivoting body.
  • a replaceability of the nozzle and thus the ability to realize different nozzle geometries can be achieved in a particularly favorable manner, characterized in that the pivot body has an internal thread for receiving a nozzle orifice.
  • the pivot body is integrally formed with a nozzle orifice. To this Way, the assembly of swivel body and nozzle can be inexpensively designed as a disposable part.
  • Aluminum has proven particularly useful as a material for the production of the swivel body. In this way it is possible to keep the tightening torques within reasonable limits to achieve plastic deformation.
  • the present invention relates to an apparatus for cleaning workpieces with a housing, a supply system for a cleaning medium and with nozzles for spraying the cleaning medium to the workpiece to be cleaned, characterized in that the nozzles are at least partially designed in the above-described type.
  • a cleaning device has a particularly high level of operational safety, since unintentional adjustment of an optimal nozzle configuration once found can be avoided with great certainty.
  • the nozzle of Fig. 1 consists of a base body 1, a swivel body 2 and a securing part 3.
  • the base body 1 has a lower projection 4 with a first thread 5, which serves to screw the spray nozzle into a designated opening of a cleaning device, not shown ,
  • To the projection 4 includes a hexagonal section 6, which serves as a starting point for a wrench.
  • An upper portion 7 of the main body 1 is externally provided with a thread 8, which serves to unscrew the securing part 3.
  • a concave spherical cap-shaped bearing surface 9 is formed, which has a radius R which is greater than half of the outer diameter D of the upper portion 7.
  • R 0 . 6 D ,
  • the concave spherical cap-shaped bearing surface 9 communicates with a bore 10, which serves as a flow channel for the cleaning medium.
  • the swivel body 2 is bounded laterally by a convex spherical cap-shaped outer surface 11 whose radius R corresponds to the radius R of the concave spherical cap-shaped bearing surface 9.
  • a central bore 12 of the pivot body 2 is provided with an internal thread 13 which serves to screw a nozzle tip, not shown here.
  • the securing part 3 consists of a hexagonal portion 13 which is formed in the shape of a nut and an adjoining annular projection 14.
  • a central opening 15 is provided in the region of the hexagonal portion 13 with an internal thread 16 to the securing part 3 on the To screw thread 8 of the body 1 can.
  • an inwardly projecting annular projection 17 is arranged, which has an inwardly projecting cutting edge 18.
  • an O-ring 19 is inserted in the area between internal thread 16 and projection 17.
  • the O-ring 19 is intended to support itself on the convex spherical cap-shaped outer surface 11 of the swivel body 2 and to seal the securing part 3 with respect to the swivel body 2.
  • Fig. 2 an alternative embodiment of the swivel body 2 is shown, above the convex spherical cap outer surface 11 has an integrally molded nozzle mouthpiece 20, which is designed as known per se Mehrlochdüse.
  • This multi-hole nozzle has evenly on the circumference arranged guide ribs 21, arranged therebetween outflow opening 22 and optionally a central outflow opening 23rd
  • Figs. 3 and 4 show the operation of the present invention.
  • the securing part 3 is only as far screwed onto the base body 1, not shown here, that the O-ring 19 bears against the convex spherical cap-shaped outer surface 11 of the pivoting part 2.
  • the cutting edge 18 is still removed from the surface of the convex spherical cap outer surface 11.
  • the pivoting part 2 is still movable in order to set up the nozzle tip, not shown here, the respective requirements.
  • Fig. 4 shows the relation of the two components 2, 3 in which the securing part 3 is further screwed onto the base body 1.
  • the O-ring 19 deforms more and the cutting edge 18 penetrates into the convex spherical cap-shaped outer surface 11 of the pivot body 2, wherein the penetration depth is exaggerated.
  • it is essential that the hardness of the cutting edge 18 is significantly greater than that of the pivot body 2 at least in the region of the convex spherical cap outer surface 11. This is achieved for example in that the securing part 3 made of steel is while the swivel body 2 is made of aluminum.
  • the cutting edge 18 can be hardened and the swivel body 2 can be provided with a ductile coating on its convex spherical cap-shaped outer surface 11.
  • the device of FIGS. 5 and 6 consists of a cleaning chamber 101 with a lid 101 a, in which a workpiece 102 is mounted.
  • Three blower strips 103a, 103b, 103c designed as distributor tubes are provided on each side of the workpiece 102 and are provided with a plurality of nozzles 104.
  • the workpiece 102 is held by seats 105 rotatably disposed in the cleaning chamber 101 and driven by a motor 106 to rotate the workpiece 102 about a horizontal axis 108 in the direction of the arrow 107.
  • a first group 104a of nozzles 104 which oppose the direction of rotation 107 on the workpiece, is provided on first distributor tubes 103a 103 are directed.
  • a second group 104b of nozzles 104 on second manifolds 103b is aligned in the direction of axis 108.
  • a third group 104c of nozzles 104 on manifolds 103c is directed at workpiece 102 at an angle in the direction of rotation 107. In this way, recesses, holes, undercut portions of the workpiece 102 or the like are reliably cleaned.
  • an outflow opening 109 is provided, through which the cleaning medium can flow out together with the blown off working medium.
  • Compressed air generator 111 supply via distribution lines 112, the individual manifolds 103a, 103b, 103c.
  • compressed air networks can be used accordingly.
  • the blowing strip 3 consists of a box-shaped main body 110, in which a plurality of nozzles 104 is screwed.
  • the outflow direction of the nozzles 104 is adjustable in order to make an adaptation to the respective workpiece 103 easily and quickly.
  • the present invention makes it possible to safely maintain the quality of cleaning processes over long periods of time and to avoid intended adjustments of the cleaning devices.

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  • Nozzles (AREA)
EP06450134A 2005-09-22 2006-09-21 Tête de pulvérisation adaptable Withdrawn EP1767281A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0064305U AT8741U1 (de) 2005-09-22 2005-09-22 Verstellbare sprühdüse

Publications (2)

Publication Number Publication Date
EP1767281A2 true EP1767281A2 (fr) 2007-03-28
EP1767281A3 EP1767281A3 (fr) 2007-05-09

Family

ID=37056691

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06450134A Withdrawn EP1767281A3 (fr) 2005-09-22 2006-09-21 Tête de pulvérisation adaptable

Country Status (2)

Country Link
EP (1) EP1767281A3 (fr)
AT (1) AT8741U1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1730348A (en) * 1925-09-14 1929-10-08 Blakeslee & Co G S Washing machine
US5730370A (en) * 1996-11-14 1998-03-24 Bex Engineering Ltd. Leak resistant nozzle ball
DE29719682U1 (de) * 1997-11-05 1999-03-11 Link Edmar Düsenvorrichtung
US6123268A (en) * 1999-05-04 2000-09-26 Nordson Corporation Angularly adjustable nozzle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1730348A (en) * 1925-09-14 1929-10-08 Blakeslee & Co G S Washing machine
US5730370A (en) * 1996-11-14 1998-03-24 Bex Engineering Ltd. Leak resistant nozzle ball
DE29719682U1 (de) * 1997-11-05 1999-03-11 Link Edmar Düsenvorrichtung
US6123268A (en) * 1999-05-04 2000-09-26 Nordson Corporation Angularly adjustable nozzle

Also Published As

Publication number Publication date
AT8741U1 (de) 2006-12-15
EP1767281A3 (fr) 2007-05-09

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