WO1992020468A1 - Dispositif de lavage - Google Patents

Dispositif de lavage Download PDF

Info

Publication number
WO1992020468A1
WO1992020468A1 PCT/SE1992/000330 SE9200330W WO9220468A1 WO 1992020468 A1 WO1992020468 A1 WO 1992020468A1 SE 9200330 W SE9200330 W SE 9200330W WO 9220468 A1 WO9220468 A1 WO 9220468A1
Authority
WO
WIPO (PCT)
Prior art keywords
fixture
products
arm
housing
washing
Prior art date
Application number
PCT/SE1992/000330
Other languages
English (en)
Inventor
Bengt Olsson
Original Assignee
Bengt Olsson
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 Bengt Olsson filed Critical Bengt Olsson
Publication of WO1992020468A1 publication Critical patent/WO1992020468A1/fr

Links

Classifications

    • 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
    • B08B3/04—Cleaning involving contact with liquid

Definitions

  • the present invention relates to apparatus for washing workshop products, comprising a housing containing at least one container with washing liquid and a device for carrying and moving the products between an upper position in which said products are fed into and out of the housing via an opening closable by means of a hatch, and at least one lower position in which the products are immersed in the washing liquid, said device comprising a fixture in the housing for receiving the products, an arm comprising an inner portion to which the fixture is mounted, and an outer portion having a centre line, a bearing means for pivotable journalling of the arm at its outer portion, and a first drive means connected to the outer portion of the arm to turn the arm about an axis of rotation coinciding with the centre line of the outer portion so that the fixture with products is moved in a circle arc between said two positions.
  • Washing apparatuses of the type described above are generally used in the workshop industry for washing products of various shapes and sizes. They are open at the top and have a stand carrying a fixture for the products.
  • the stand is movable along guides mounted in the roof or on a wall of a top structure on the washing apparatus itself.
  • the fixture in turn is movable along guides in the stand, enabling it to be lowered into the washing space of the apparatus.
  • bearings and sliding surfaces come into contact with the washing liquid and are therefore washed cleaned of oil and fat, thereby increasing the need for servicing.
  • Position indicators and other sensors are mounted in the washing space and are therefore also subjected to washing liquid and impurities from the products. Their function therefore gradually deteriorates, resulting in numerous stoppages.
  • Another drawback is that the top structure increases the total height of the washing equipment and must therefore ususally be dismantled to enable the washing apparatus to be transported through a gateway or similar opening in an industrial building.
  • the object of the present invention is to substantially reduce the above-mentioned drawbacks and provide a completely closed washing apparatus which has the power sources (motors) of the drive means and most of the power transmission located outside the washing space; which has certain position indicators located outside the washing chamber and other position indicators enclosed in functional construction parts inside the washing chamber; which is free from open journalling and sliding surfaces inside the apparatus; and which is compact, i.e. it has low structural height to be moved through gateways and the like without having to be dismantled.
  • the washing apparatus is substantially characterized in that said arm is angled and also includes a connection portion which is rigidly joined to the inner and outer portions of the angled arm, said outer portion extending through a side wall of the housing, said bearing means being mounted at said side wall and said first drive means being disposed on the outside of the housing; that the angled arm is hollow; that the device for moving the fixture includes a second drive means for rotating the fixture; and that the second drive means comprises a power source disposed outside the housing, and transmission means which are enclosed and journalled in the angled arm and connected to the power source and the fixture.
  • Figure 1 is a cross-sectional view of a washing apparatus with an angled arm carrying a fixture, in accordance with the invention.
  • Figure 2 is a view taken in longitudinal section through an angled arm according to Figure 1.
  • Figure 3 is a view along the line III-III in Figure 2.
  • Figures 4-6 are views taken in longitudinal sections through the washing apparatus according to Figure 1 with the angled arm in different operating positions during a washing cycle.
  • the apparatus shown in Figure 1 for washing workshop products comprises a housing 1, enclosing a washing chamber and formed by four vertical side walls 2, 3, 4, 5, a bottom 6 and a roof 7.
  • the apparatus housing 1 may be placed in a larger housing or cover.
  • One of the side walls is provided with an opening 9, closable by means of a hatch 8, through which the workshop products are fed in and out.
  • the housing is entirely closed.
  • Said opening 9 is arranged close to a conveyor 10 for transfer of products to and from the washing apparatus.
  • the products are normally placed in a special basket 11 or similar container, open on all sides to permit maximum through-flow of the washing liquid.
  • a feeding device 12 is disposed adjacent the opening 9 to feed the basket 11 with products in and out of the washing apparatus through the opening 9.
  • a first container 13 defined by a partition wall 24 and the side walls 2, 3, 4 and filled with washing liquid to a predetermined minimum level.
  • the washing liquid may be an alkaline washing liquid or an organic solvent.
  • the container 13 is covered by a fixed plate 14 and a lid 15 which can be moved aside with the aid of a pneumatic cylinder (not shown) to expose an opening 16 giving access to the washing liquid in the container 13.
  • the fixed plate 14 and lid 15 are inclined towards a vessel 17 permeable to liquid, provided with mesh walls to arrest shavings and other loose metal particles produced during machining of the products.
  • the vessel 17 is placed in a second container 25 defined by the partition 24 and side walls 2, 4, 5, which receives both liquid passing through the mesh walls of the vessel 17 and liquid running over the upper edge of the partition 24 from the first container 13. Inlet and outlet connections are not shown in the drawings.
  • the vessel 17 is covered at the top by a fixed plate 18 to receive rinsing liquid which flows down from the fixed plate 14 and lid 15 and thus into the vessel 17.
  • Rinsing nozzles 19 are mounted on the inside of the roof 7 to feed rinsing liquid into a free space 20 above the containers 13, 25.
  • the space 20 also contains a fixture 21, open to allow liquid to flow through it, for receipt of the basket 11 containing products to be washed.
  • the fixture 21 is provided with pivotable locking device 22 influenced by a pneumatic cylinder 23 to move it to and from an operative position in which it prevents the basket 11 from being displaced out of the fixture 21 during the washing cycle.
  • the fixture 21 is included in a special device for carrying and moving the products between an upper position in which they can be fed into and out of the housing 1 via the opening 9, and a lower position in which the products are immersed in the washing liquid.
  • the device also includes drive means for moving the fixture with the products between said two end positions.
  • said device comprises an angled arm 30 having an inner portion 31 with centre line 32 and an outer portion 33 with centre line 34 parallel to the centre line 32 of the inner portion 31, as well as an intermediate connection portion 35 extending between the inner and outer portions 31, 33 and being rigidly joined thereto to form a movable unit.
  • the centre line 36 of the connection portion 35 is perpendicular to the centre lines 32, 34 of said portions 31, 33.
  • the angled arm 30 extends into the housing through the side wall 4 which is parallel to the side wall 2 having the opening 9, and its outer portion 31 is pivotably journalled in a bearing in a bearing housing 37 mounted on the outside of the side wall 4.
  • the centre line of the outer portion 33 thus forms the axis of rotation of the angled arm 30.
  • the drive means for movement of the fixture is arranged outside the housing and comprises a chain wheel 38 mounted on the outer portion 33, a motor 39 and a chain 40 to drive the chain wheel 38.
  • the motor 39 is reversible and is engaged and disengaged by means of a control device in a unit for setting a washing program.
  • the angled arm 30 can be turned about its axis of rotation 34 by the motor 39 180° between said two end positions of the turning movement, these being determined and sensed by stationary position indicators 26, 27 which cooperate with and sense a shoulder 28 or similar protusion with suitable sensitive surface, said shoulder being mounted in a fixed position on the chain wheel 38.
  • a third position indicator 29 is arranged close to the chain wheel 38 to sense when the shoulder 28 is in an intermediate position of the fixture 21 ( Figure 5) when it has been turned about 45° from its starting position. Rinsing is performed in this intermediate position.
  • Suitably inductive position indicators are utilized, but other types of position indicators or sensors may also be used.
  • the inner portion 31 of the angled arm 30 is provided at its free end with a plate 41 and a rod 42.
  • the rod 42 carries a flange 43 on which said fixture 21 is mounted.
  • the angled arm 30 is also provided with a second drive means to rotate the fixture 21 and its basket 11 containing products about an axis of rotation 44 coinciding with the centre line 32 of the inner part 31-
  • the rod 42 forms a shaft that extends through a hole in the plate 41 and is rotatably journalled in a bearing 45 mounted in the tubular inner portion 31.
  • the drive means includes a shaft 46 extending through the tubular outer portion 33, and a shaft 47 extending through the connection portion 35 which starts with a tube 48 and continues at its junction with the inner portion 31 into an enlarged gear housing 49.
  • the second drive means includes a conical toothed gear 50 which transmits the rotary movement of the shaft 46 to the shaft 47 of the connection portion 35, and a worm gear 51 which transmits the rotary movement of the shaft 47 to the shaft 42 of the inner portion 31.
  • a second motor 52 coupled to the shaft 46 of the outer portion 33 is located on the outside of the housing 1.
  • the shafts 46, 47 are rotatably journalled in bearings 53, 54 mounted in the hollow outer portion 33 and the hollow connection portion 35, respectively.
  • the motor 52 is reversible and is engaged and disengaged by means of a control device in the unit for setting the washing program.
  • a sensor or position indicator 55 is rigidly arranged in the vicinity of the toothed wheel 56 of the worm gear 51, said wheel being secured to the shaft 42 carrying the fixture 42.
  • the position indicator 55 cooperates with and senses the position of a shoulder 57 or similar protusion, or some other sensing means to which the position indicator 55 is sensitive.
  • the shoulder 57 is secured to the toothed wheel 56.
  • the position indicator 55 is arranged to be activated only after the washing program has been completed, whereupon it starts the motor 52 to turn the fixture 21 until the position indicator 55 meets and senses the shoulder 57, thereby disconnecting the motor 52.
  • the position indicator 55 and shoulder 57 are so located in relation to each other that the fixture 21 assumes a horizontal or substantially horizontal position (angle position 0°) when the position indicator senses the shoulder 57, so that the basket 11 can be removed from the fixture 21.
  • the position indicator is arranged on the outside of the housing 1 close to the shaft 46. The position indicator then cooperates with and senses the position of a shoulder or similar protusion, or some other sensing means to which the position indicator is sensitive, the shoulder etc. being secured to the shaft 46. All position indicators are thus arranged outside the housing, which is an advantage.
  • the baskets containing products are carried on the conveyor 10 that is provided with stop members to stop the basket 11 above the feeding device 12.
  • the feeding device receives a signal from the washing program to be raised so that the basket 11 is lifted to the level of the hatch 8.
  • the operating device of the hatch receives a signal to move the hatch 8 aside, thus allowing access to the opening 9.
  • the feeding device 12 receives a new signal to feed the basket 11 into the fixture 21, after which it is returned and the hatch 8 is again closed.
  • the washing space 20 is now entirely closed, thereby preventing any leakage of steam.
  • the motor 39 is started to turn the angled arm 30 so that the fixture 21, with basket and products, is moved to the intermediate position enabling the products to be rinsed with rinsing liquid from the nozzles 19 (Figure 5).
  • the motor 52 can be engaged to rotate the fixture in one direction or first in one direction and then the other once or several times during rinsing.
  • the lid 15 is opened and the motor 39 started again to turn the angled arm 30 the remaining distance so that the fixture 21 continues to move in a circle arc downwardly into the washing liquid in the container 13 ( Figure 6).
  • the motor 52 may be engaged all the time or at certain intervals in order to rotate the fixture while it is in the washing liquid, in the same way as in the rinsing zone. Furthermore, the motor 39 can be engaged to move the fixure to and fro in the washing liquid in a pendulum-like movement. At the end of the washing time the fixture 21 returns to the upper, starting position in which it may be caused to rotate as desired in order to hasten or improve drainage of the liquid from the products and the basket 11. Finally, the lock 22 is released and the hatch 8 is moved aside so the feeding device 12 can enter the fixture 21 to fetch the basket 11 containing the washed products. The basket 11 containing the products is placed on the conveyor to be carried to a second similar washing apparatus, a different washing apparatus or a terminal station.
  • the fixture can be controlled so that it remains in a horizontal or substantially horizontal position throughout movement of the angled arm or at least between the rinsing and washing positions and back, i.e. in a position not turned, or only slightly turned, to prevent the products from being subjected to undesired blows or impacts.
  • the motor 52 and motor 39 can be synchronized so that the fixture 21 is turned to only a limited, controlled extent in relation to the rotary movement of the angled arm, so that the fixture is aligned in the manner described above.
  • two separate containers for washing liquid are arranged in the housing and served by one and the same angled arm and fixture.
  • the fixture is first lowered into the washing liquid in the first container by turning the angled arm through a circle arc of 150°, for instance, returned to the upper, starting position, and then lowered into the washing liquid in the other container, which is cleaner than or of a different type from the first, by turning the angled arm ' through a corresponding circle arc in the other direction.
  • the angled arm is sealed so that neither liquid nor gas can penetrate into the interior, thereby ensuring that the position indicators or sensors therein remain intact. Since, furthermore, all other electrical equipment is located outside the housing, the washing environment inside the housing is classed as less fire or explosion hazardous. This means that more efficient solvents, but ones entailing more risk of fire or explosion, can be used for cleaning the products if desired.

Landscapes

  • Cleaning By Liquid Or Steam (AREA)

Abstract

Dispositif servant à laver des produits d'atelier et comprenant un réservoir (13) rempli de liquide de lavage, ainsi qu'un système servant à déplacer les produits et comprenant un bras (30) supportant un élément de serrage (21) des produits et un moyen d'actionnement (38, 39, 40) faisant tourner le bras (30), de façon que l'élément de serrage (21) portant les produits se déplace selon un arc de cercle. D'après l'invention, le bras (30) est coudé et comporte une partie formant raccord (35) reliée aux parties intérieure et extérieure (31, 33) dudit bras coudé (30); ladite partie extérieure (33) s'étend à travers une paroi latérale (4) du boîtier. Le système servant à imprimer un mouvement à l'élément de serrage (21) possède un deuxième moyen d'actionnement servant à le faire tourner. Le deuxième moyen d'actionnement possède un moteur (52) placé à l'extérieur du boîtier, ainsi que des moyens de transmission (42, 46, 47, 50, 51) montés en paliers dans le bras coudé creux (30).
PCT/SE1992/000330 1991-05-21 1992-05-19 Dispositif de lavage WO1992020468A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9101516-4 1991-05-21
SE9101516A SE468833B (sv) 1991-05-21 1991-05-21 Apparat foer tvaettning av verkstadsgods

Publications (1)

Publication Number Publication Date
WO1992020468A1 true WO1992020468A1 (fr) 1992-11-26

Family

ID=20382777

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1992/000330 WO1992020468A1 (fr) 1991-05-21 1992-05-19 Dispositif de lavage

Country Status (2)

Country Link
SE (1) SE468833B (fr)
WO (1) WO1992020468A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009065462A3 (fr) * 2007-11-23 2009-09-24 Siemens Aktiengesellschaft Dispositif mobile et procédé de nettoyage
DE102014104910A1 (de) * 2014-04-07 2015-10-08 Moc-Danner Gmbh Industriewaschmaschine und Verfahren zur Reinigung von Teilen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3772980A (en) * 1972-05-08 1973-11-20 Fluorocarbon Co Semi-conductor wafer processing apparatus
DE2444161B2 (de) * 1974-09-16 1978-11-16 Otto Duerr Gmbh & Co, 7000 Stuttgart Verfahren und Anlage zum Waschen von Werkstücken, insbesondere Metallteilen
DE3300666A1 (de) * 1982-01-26 1983-08-04 Guido Castelmaggiore Zucchini Waschverfahren fuer metallhaltige und nicht-metallhaltige teile wie kleinteile, mechanische komponenten und teile fuer die elektronische industrie sowie eine maschine zur durchfuehrung dieses verfahrens
DE3238559A1 (de) * 1982-10-18 1984-04-19 MOC-Danner GmbH, 7403 Ammerbuch Vorrichtung zum reinigen und entfetten von oberflaechen nichtporoeser werkstuecke

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3772980A (en) * 1972-05-08 1973-11-20 Fluorocarbon Co Semi-conductor wafer processing apparatus
DE2444161B2 (de) * 1974-09-16 1978-11-16 Otto Duerr Gmbh & Co, 7000 Stuttgart Verfahren und Anlage zum Waschen von Werkstücken, insbesondere Metallteilen
DE3300666A1 (de) * 1982-01-26 1983-08-04 Guido Castelmaggiore Zucchini Waschverfahren fuer metallhaltige und nicht-metallhaltige teile wie kleinteile, mechanische komponenten und teile fuer die elektronische industrie sowie eine maschine zur durchfuehrung dieses verfahrens
DE3238559A1 (de) * 1982-10-18 1984-04-19 MOC-Danner GmbH, 7403 Ammerbuch Vorrichtung zum reinigen und entfetten von oberflaechen nichtporoeser werkstuecke

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009065462A3 (fr) * 2007-11-23 2009-09-24 Siemens Aktiengesellschaft Dispositif mobile et procédé de nettoyage
US8632639B2 (en) 2007-11-23 2014-01-21 Siemens Aktiengesellschaft Mobile cleaning device and method
DE102014104910A1 (de) * 2014-04-07 2015-10-08 Moc-Danner Gmbh Industriewaschmaschine und Verfahren zur Reinigung von Teilen
DE102014104910B4 (de) * 2014-04-07 2017-04-27 Moc-Danner Gmbh Industriewaschmaschine und Verfahren zur Reinigung von Teilen

Also Published As

Publication number Publication date
SE9101516D0 (sv) 1991-05-21
SE9101516L (sv) 1992-11-22
SE468833B (sv) 1993-03-29

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