EP3253531A1 - Dispositif servant à nettoyer des objets - Google Patents

Dispositif servant à nettoyer des objets

Info

Publication number
EP3253531A1
EP3253531A1 EP16701497.6A EP16701497A EP3253531A1 EP 3253531 A1 EP3253531 A1 EP 3253531A1 EP 16701497 A EP16701497 A EP 16701497A EP 3253531 A1 EP3253531 A1 EP 3253531A1
Authority
EP
European Patent Office
Prior art keywords
channel
region
cleaning
housing
working space
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Withdrawn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
EP16701497.6A
Other languages
German (de)
English (en)
Inventor
Matthias STREHLE
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.)
Ka Group Management GmbH
Original Assignee
Ka Group Management 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 Ka Group Management GmbH filed Critical Ka Group Management GmbH
Publication of EP3253531A1 publication Critical patent/EP3253531A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B5/00—Cleaning by methods involving the use of air flow or gas flow
    • B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • B08B3/024—Cleaning by means of spray elements moving over the surface to be cleaned
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B5/00—Cleaning by methods involving the use of air flow or gas flow
    • B08B5/04—Cleaning by suction, with or without auxiliary action
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
    • E01H1/10—Hydraulically loosening or dislodging undesirable matter; Raking or scraping apparatus ; Removing liquids or semi-liquids e.g., absorbing water, sliding-off mud
    • E01H1/101—Hydraulic loosening or dislodging, combined or not with mechanical loosening or dislodging, e.g. road washing machines with brushes or wipers
    • E01H1/103—Hydraulic loosening or dislodging, combined or not with mechanical loosening or dislodging, e.g. road washing machines with brushes or wipers in which the soiled loosening or washing liquid is removed, e.g. by suction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B2203/00—Details of cleaning machines or methods involving the use or presence of liquid or steam
    • B08B2203/02—Details of machines or methods for cleaning by the force of jets or sprays
    • B08B2203/0229—Suction chambers for aspirating the sprayed liquid

Definitions

  • the invention relates to a device for cleaning of objects, in particular of workpieces, with a rotatably mounted about a rotation axis and arranged in a working space of a housing rotation nozzle head on which a plurality of at least one pressure line for a cleaning medium connectable nozzles are arranged, wherein the working space by at least an arranged in the region of a first end face end wall and a jacket of the housing is formed, wherein a concave - preferably at least partially cylindrical - inner surface of the shell surrounds the rotary nozzle head at least partially, and the jacket of the housing has at least one outflow region for the cleaning medium, and wherein the working space is designed to be open toward a cleaning area facing away from the end wall in the region of a second end face, the shell being surrounded at least partially by at least one channel, which is provided with at least one suction line g is connected or connectable.
  • WO 2007/030625 A2 describes a device for cleaning solid surfaces with a housing which delimits a surface to be cleaned.
  • a rotary nozzle head is rotatably mounted, which has a plurality of nozzles connected to a pressure line for a cleaning medium.
  • the rotary nozzle head is arranged in a working space of the housing, which is bounded by a concave cylindrical inner circumferential surface of the housing.
  • the shell of the housing is surrounded by an annular channel, which is connected to a suction line.
  • the working space is connected via an annular gap with the annular surrounding channel, so that the working space is uniformly sucked through this annular gap.
  • the disadvantage is that larger contaminants can only be removed insufficiently.
  • a similar arrangement is known from US 2009/0139046 AI.
  • a device for cleaning containers with a rotating nozzle head which has a nozzle assembly.
  • the nozzle head is partially surrounded by a baffle, which ensures that the main flow of the cleaning medium is directed to the center of the container to be cleaned.
  • U l describes a cleaning device and a nozzle head with at least two first nozzle rings with at least one nozzle with tangential direction of action, between which a second nozzle ring is arranged with a radial direction of action.
  • a designed as a hydraulic vortex jet working tool is known from DE 34 12 319 Cl.
  • the vortex jet nozzle has a sleeve-like rotor with nozzle inserts, from which rays exit radially. By eccentric arrangement of nozzle inserts a rotational movement of the rotor is achieved.
  • Austrian patent application A 50830/2014 describes a device for cleaning workpieces with a rotary nozzle head rotatably mounted in a stator and a rotation axis on which a plurality of nozzles connectable to at least one pressure line for a cleaning medium are arranged, one cylindrical concave Impact region forming side wall of the housing surrounding the arranged in a working space rotary nozzle head with a defined minimum distance.
  • An outflow region for the cleaning medium adjoins the impact region of the housing downwards, the housing forming a cross-sectional constriction in the outflow region.
  • the arranged below the working space outflow area allows a vertical chip removal down. However, such chip removal is not possible in any case, for example, when conveyor belts prevent discharge of the chips down.
  • the object of the invention is to avoid these disadvantages and to allow improved cleaning of objects.
  • this is achieved in that in the outflow area connected to the suction line outflow chamber is arranged, which with at least one end of the channel, preferably with a first end and a second end of the channel, is flow-connected and the outflow chamber is connected via at least one opening in the jacket to the working space.
  • Vacuum is generated in the duct via the suction line, which creates a pressure gradient between the working space and the duct. Impurities, such as chips, which are removed by the kinetic energy of the compressed air flowing from the nozzles and impinging on the object to be cleaned compressed air are sucked into the channel and thus prevented from escaping from the housing.
  • the channel open to the cleaning area may comprise the jacket in an angular range of at least 180 °, preferably at least 240 °. This ensures that impurities can be trapped by the channel in any direction, whereby the kinetic energy of the impurities is sufficiently reduced to largely prevent impurities escaping from the housing. The channel thus does not cause the impurities to escape from the housing, as it does to a reduction of kinetic energy due to collision of the particles comes.
  • the vacuum forming in the channel increases the braking effect of the impurities flowing around and, on the other hand, supports the removal of the impurities from the working space in which the actual cleaning of the object takes place.
  • the fact that the second end face - preferably connected by a removable lid - sealed outflow chamber is connected via at least one opening in the jacket to the working space, can be aspirated both from the surrounding channel, as well as from the working space.
  • the outflow chamber acts as a collecting space.
  • the connection of the suction line to the outflow chamber can take place in any direction, for example horizontally, so that the space under the housing can also be used for other system components, for example a conveyor belt.
  • the extracted from the working space and the channel and entering the outflow chamber air mass flow in the ratio 40:60 is divided.
  • the opening in the shell between the working space and the outflow chamber, as well as the cross-sectional areas of the shell in the region of the first and second end are designed accordingly.
  • the channel in the region of the first end opens substantially horizontally and in the region of the second end substantially vertically into the outflow chamber. It is particularly advantageous if the channel has a preferably widening cross-section between the first and the second end.
  • the channel is structurally advantageously designed so that it forms a continuously harmoniously expanding cross-sectional profile between the first and the second end.
  • Recombination of the object to be cleaned and contamination of equipment surrounding the device can be effectively avoided if the extracted mass flow is about two to six times, preferably four to five times the introduced via the nozzle mass flow of the cleaning medium - preferably air -.
  • FIG. 1 shows an inventive device for cleaning objects in an oblique view.
  • Fig. 2 shows this device in a side view
  • Fig. 3 shows the detail III of FIG. 2;
  • Fig. 4 shows an arrangement of two devices according to the invention.
  • the figures show a device 1 for cleaning - not shown - objects, such as workpieces or machine parts.
  • the device 1 has a housing 2 with an end wall 4 arranged in the region of a first end face 3 and a substantially cylindrical jacket 5, wherein the end wall 4 and the inner lateral surface 5a of the jacket 5 span a working space 6, in which one about an axis of rotation 7a rotatably mounted in the housing 2 rotary nozzle head 7 is arranged.
  • the axis 7a is arranged substantially normal to the end wall 4.
  • the rotary nozzle head 7 has at the end of radially arranged rotary arms 8 nozzles 9, which arranged in or on the rotary arms 8 and the hub 10 of the rotary nozzle head 7 - not shown - flow connections with a pressure line not shown for supplying a pressurized cleaning medium , For example, air are connected.
  • the nozzles 9 can be formed pivotable about an angle between about 0 ° and 30 ° about the longitudinal axes 8a of the rotary arms 8, whereby the rotational speed of the rotary nozzle head 7 can be adjusted.
  • the drive as well as the speed adjustment of the rotary nozzle head 5 thus takes place via the employment of the nozzles.
  • the concave cylindrical inner lateral surface 5a surrounds the rotary nozzle head 5 with a minimum distance to the rotary arms 8 and the nozzles 9.
  • the nozzles 9 may possibly be divided into drive nozzles and cleaning nozzles.
  • the jacket 5 is interrupted at least in an outflow region 11, so that the working space 6 and via at least one opening 12 in the jacket 5 is connected to an adjoining outflow chamber 13.
  • the outflow chamber 13 is connected via a suction line 14 with a suction pump, not shown.
  • the working space 6 is designed to be open in the region of a second end face 15 facing away from the first end face 3, in order to enable a cleaning of the object to be cleaned.
  • the open side of the working space 6 forms the cleaning area 16 for the object.
  • the jacket 5 is surrounded by an at least predominantly substantially annular channel 17, which in the exemplary embodiment comprises the jacket 5 in an angular range ⁇ of approximately 270 °.
  • the angle range ⁇ is - viewed in a section transverse to the axis of rotation 7a - defined by the axis of rotation 7a extending outermost radial line ni, n 2 , which are normal to the inner circumferential surface 5a of the jacket 5 (see Fig. 2).
  • the channel 17 is also open to the second end face 15 and is formed by the radially elongated end wall 4, an outer circumferential surface 5 b of the shell 5 and a peripheral outer housing wall 18.
  • the channel 17 opens with its first end 17a and its second end 17b in the outflow chamber 13 on both sides of the opening 12 a.
  • the outflow chamber 13 is designed to be closed to the second end face 15 and covered, for example, by a removable cover 19.
  • the channel 17 opens substantially horizontally in the region of the first end 17a and substantially vertically in the outflow chamber 13 in the region of the second end 17b and has a continuously widening cross section between the first end 17a and the second end 17b.
  • the two ends 17a, 17b may be formed by substantially straight channel sections which tangentially connect to an annular channel section 17c of the channel 17.
  • the on the one hand from the working chamber 6 and on the other hand sucked out of the channel 17 and entering the outflow chamber 13 air mass flows are divided in the ratio 40: 60.
  • the total mass flow extracted via the suction line 14 is, for example, approximately two to six times the mass flow of the cleaning medium introduced via the nozzles 9.
  • the nozzles 9 are arranged substantially in a normal plane on the rotation axis 7a.
  • the housing 2 is formed for example by sheet metal.
  • the end wall 4 is formed at least in the region of the rotary nozzle head 5 substantially normal to the rotation axis 7a.
  • the inner lateral surface 5a forms a substantially cylindrical concave impact region.
  • the radius of the inner lateral surface 5a results from the radius of the rotary nozzle head 7, as well as a safety allowance of, for example, 5 mm.
  • the length of the rotary arms 8 can be optimized depending on the size of the object to be cleaned and the available cycle time. In general, long rotating arms 8 are advantageous, for example, for large-sized objects to be cleaned.
  • Fig. 4 shows an arrangement with two devices 1 for cleaning an object.
  • the two essentially mirror-inverted devices 1 are arranged with their open second end faces 15 facing away from each other so arranged that the object to be cleaned between them can be positioned.
  • two mutually averted sides of the article can be cleaned simultaneously.
  • the cleaning of the article takes place in that the cleaning medium, such as air, applied at relatively high pressure and high speed through the nozzles 9 on the surface of the article and thus impurities such as chips or the like, are rinsed.
  • the distances between the object to be cleaned and the devices 1 should be as small as possible. Due to the high pressure and the high speed of the cleaning medium, the detached impurities have in part a high kinetic energy. The impurities are sucked in each device 1 by the respectively prevailing in the outflow chamber 13 negative pressure in the annular channel 17.
  • the circumferential channel 17 causes the kinetic energy of the impurities to be precipitated, for example, by collision with the walls of the channel 17 and by abrasion. Braking the swirling dirt particles, is largely degraded. A re-emergence of the contaminants from the channel 17 can thus be effectively prevented.
  • the removal of impurities from the working space 6 is supported by the negative pressure in the outflow chamber 13. For example, the horizontal removal of impurities makes it possible to keep the space below the housing 2 largely free of contamination and thus to use for the arrangement of other system components, such as a conveyor belt.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Cleaning In General (AREA)

Abstract

L'invention concerne un dispositif (1) servant à nettoyer des objets, en particulier des pièces usinées, comportant une tête à buses rotative (7) qui est montée rotative autour d'un axe de rotation (7a) et agencée dans un espace de travail (6) d'un carter (2), et sur laquelle sont agencées plusieurs buses (9) pouvant être raccordées à une conduite de fluide de nettoyage sous pression, l'espace de travail étant formé par au moins une paroi frontale (4) agencée dans la zone d'une première face frontale (3) et par une enveloppe (5) du carter (2). Une surface intérieure (5a) concave - de préférence au moins par endroits cylindrique - de l'enveloppe (5) entoure au moins en partie la tête à buses rotative, l'enveloppe (5) du carter (2) présente au moins une zone d'évacuation (11) pour le fluide de nettoyage, et l'espace de travail (6) est ouvert en direction d'une zone de nettoyage (16) opposée à la paroi frontale (4) dans la zone d'une seconde face frontale (15). L'enveloppe (5) est entourée au moins partiellement par au moins un canal (17) qui est ou peut être raccordé à au moins une conduite d'aspiration (14). L'invention vise à permettre un meilleur nettoyage des objets. À cet effet, une chambre d'évacuation (13) raccordée à la conduite d'aspiration est agencée dans la zone d'évacuation (11) et est raccordée fluidiquement à au moins une extrémité (17a ; 17b) du canal (17), de préférence à une première extrémité (17a) et à une seconde extrémité (17b), et la chambre d'évacuation (13) est raccordée à l'espace de travail (6) par au moins une ouverture (12) dans l'enveloppe (5).
EP16701497.6A 2015-02-03 2016-01-26 Dispositif servant à nettoyer des objets Withdrawn EP3253531A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50085/2015A AT516740B1 (de) 2015-02-03 2015-02-03 Einrichtung zur reinigung von gegenständen
PCT/EP2016/051481 WO2016124435A1 (fr) 2015-02-03 2016-01-26 Dispositif servant à nettoyer des objets

Publications (1)

Publication Number Publication Date
EP3253531A1 true EP3253531A1 (fr) 2017-12-13

Family

ID=55229697

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16701497.6A Withdrawn EP3253531A1 (fr) 2015-02-03 2016-01-26 Dispositif servant à nettoyer des objets

Country Status (3)

Country Link
EP (1) EP3253531A1 (fr)
AT (1) AT516740B1 (fr)
WO (1) WO2016124435A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020099163A1 (fr) * 2018-11-16 2020-05-22 Ejot Gmbh & Co. Kg Dispositif de nettoyage sans contact à courant tourbillonnaire

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD993557S1 (en) * 2021-04-02 2023-07-25 Woodcraft Solutions Llc Hinged dust hood

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5970574A (en) * 1997-04-24 1999-10-26 Hydrochem Industrial Services, Inc. Apparatus and method for cleaning surfaces by removing and containing waste
DE10142970A1 (de) * 2001-09-01 2003-04-03 Aquaplan Gmbh Vorrichtung zum Reinigen einer Fläche mittels einer Reinigungsflüssigkeit
DE102004013057B3 (de) * 2004-03-05 2005-07-14 Alfred Kärcher Gmbh & Co. Kg Flächenreinigungskopf
WO2007030625A2 (fr) * 2005-09-07 2007-03-15 Pearl Technologies, L.L.C. Outil pneumatique de nettoyage de surface dure
US8510902B2 (en) * 2007-12-03 2013-08-20 Dri-Eaz Products, Inc. Air induction hard surface cleaning tool with an internal baffle
DK2354315T3 (en) * 2010-02-08 2015-12-14 Skanska Sverige Ab A cleaning and material removal system, application of the system and a method of cleaning and removing material from the paved road

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020099163A1 (fr) * 2018-11-16 2020-05-22 Ejot Gmbh & Co. Kg Dispositif de nettoyage sans contact à courant tourbillonnaire

Also Published As

Publication number Publication date
WO2016124435A1 (fr) 2016-08-11
AT516740B1 (de) 2016-08-15
AT516740A4 (de) 2016-08-15

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