US3909964A - Apparatus for spreading and feeding pieces of washing - Google Patents

Apparatus for spreading and feeding pieces of washing Download PDF

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Publication number
US3909964A
US3909964A US501984A US50198474A US3909964A US 3909964 A US3909964 A US 3909964A US 501984 A US501984 A US 501984A US 50198474 A US50198474 A US 50198474A US 3909964 A US3909964 A US 3909964A
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United States
Prior art keywords
feed conveyor
washing
pressure roller
suction channel
laying
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Expired - Lifetime
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US501984A
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English (en)
Inventor
Rolf Wenck
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.)
E & E Peters Inh Ludwig Mohr
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E & E Peters Inh Ludwig Mohr
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F67/00—Details of ironing machines provided for in groups D06F61/00, D06F63/00, or D06F65/00
    • D06F67/04—Arrangements for feeding or spreading the linen

Definitions

  • a device for feeding small pieces of washing e.g. to a mangle comprises a constantly driven feed conveyor, a [52] U.S. Cl. 38/143 suction channel and an intermediate device of a type [51] Int. Cl. D06F 67/04 which presents movement of a piece of washing laid [58] Field of Search 38/143, 2; 271/45, 49, with its front end on the moving belts of the feed conveyor and with its rear end in the suction channel.
  • This invention relates to a device for feeding pieces of washing to a washing treatment machine. Particularly the invention relates to such a device for feeding small pieces of washing as handkerchiefs, serviettes, towels or the like.
  • the object of the present invention is to provide a device for feeding small pieces of washing satisfactorily and close to one another into a washing treatment machine such as a mangle.
  • the invention relates to apparatus for feeding in particular small pieces of washing to a washing treatment machine such as a mangle or the like which includes a continuously driven feed conveyor positioned in front of the washing treatment machine and above which a freely rotatable pressure roller is movably positioned.
  • a suction channel connected to a source of reduced pressure is positioned ahead of the feed conveyor channel into which a portion of washing which has been laid with its front end on the feed conveyor can be sucked for shaking out.
  • a device is positioned which creates such a resistance to movement of the piece of washing that a piece of washing located with its front end merely laid on the feed conveyor and with its rear end in the suction channel does not move.
  • FIG. 1 is a partial schematically drawn side view of a device according to the invention
  • FIG. 2 is a partial view on a larger scale
  • FIG. 3 is a plan corresponding to FIG. 2,
  • FIG. 4 is a view similar to that of FIG. 2 of a modified embodiment of the invention.
  • FIG. 5 shows a stretching out plate in plan.
  • the device has a movable frame 1 with two side walls 2 and a bridge 3 connecting the side walls in which for example parts of the electrical control, pressure means control, or the like can be arranged.
  • a feed conveyor 4 which feeds pieces of washing laid thereon in the direction towards a subsequently arranged washing treatment machine which for example can be a mangle, and the infeed conveyor 5 of which is schematically illustrated.
  • the front reverse roll of the inlet conveyor 5 of the washing treatment machine is in contact with a turn round roll of the feed conveyor 4.
  • the feed conveyor 4 is then directly driven by the inlet conveyor 5. It is naturally also possible to provide a separate drive device for the feed conveyor 4 in which case then the belt guiding of the feed conveyor 4 runs somewhat otherwise than the illustrated embodiment.
  • a suction channel 6 which can be arranged generally horizontally but which in the illustrated embodiment runs somewhat obliquely.
  • a suction channel 6 On the right hand end of the suction channel 6 as shown in FIG. 1 is connected with the interposition of a sieve 6a an air chamber 7 which extends vertically downwards in which as illustrated there is arranged a blower 8, which is preferably a transverse blower of known type, the turning direction of which is given in FIG. 1 by the arrow.
  • a flap 9 or the like which by means of a suitable operation device, which is shown as a piston cylinder device 10, can be operated according to choice in order to close the exit opening or to open it. The purpose of this arrangement is explained below.
  • the feed conveyor 4, the suction channel 6, the air chamber 7 as well as the blower 8 extend over the whole width of the device, i.e. over the distance between the two side walls 2 of frame 1.
  • a feed roller 11 which likewise extends over the whole width of the device and which is driven by means of a suitable device 11a, preferably with the interposition of an overload protection such as a friction clutch.
  • the drive to feed roller 1 1 can be switchable in controlled fashion as is described further below.
  • the inlet end of the suction channel 6 lies somewhat in the region of and below a turn round roller 12 located at the laying on end of the feed conveyor 4, around which the belts or strips of the feed conveyor 4 run.
  • a laying on plate 13 In front of this turn round roller 12 there is arranged a laying on plate 13.
  • a freely rotatable roller 14 in the form of a plurality of smaller rollers, each of which has a reflective coating 14a.
  • the laying on plate 13 extends around the laying on end of the feed conveyor 4 downwardly so that pieces of washing in this region are prevented from coming into direct contact with the feed conveyor 4. Contact of pieces of washing with the feed conveyor 4 is possible relative to the direction of movement of the feed conveyor 4 and the feed direction of the pieces of washing in the direction towards the washing treating machine after the laying on plate 13.
  • a device in the form of a spreading plate 15 having an arcuate spreading edge As illustrated, the spreading plate 15 is arranged slideably in a groove 16 formed by suitable means on the frame of the device. To alter the spreading action, variously sized spreading plates 15 can be provided so that then the spreading edge projects out differing distances.
  • a spreading plate 15 is shown in plan. It has the customary arcuate spreading edge. Additionally the spreading plate 15 is provided near the spreading edge with a plurality of small openings 15a. By means of this it is obtained that air is sucked also through these holes 150 so that in practice on both sides of the piece of washing an air stream arises by means of which again the laying on is further guaranteed. Additionally it is to be noted that, as illustrated in dashed lines FIG. 2, the spreading plate can also be arranged in angled position.
  • the walls limiting the air chamber 7 and the suction channel 6 can be provided with acoustic damping where this is possible without too great constructional difficulty.
  • the upper wall of the suction channel 6 is provided with a sound dampening arrangement.
  • This sound dampening arrangement embraces a layer consisting of sound dampening material which is covered by an expanded mesh which simultaneously forms the upper wall of the suction channel 6.
  • a freely turnable pressure roll 17 is located above the feed conveyor 4, which roll in the embodiment according to FIG. 1 lies on the feed conveyor 4 and can be moved between the position illustrated in full lines and that illustrated in dashed lines, as is later described in more detail.
  • the pressure roller 17 can suitably consist of a hollow roller made of plastics.
  • the pressure roller 17 is fixed to a swingable mounting. This swingable mounting has at each end of the pressure roller 17 a strut 18 which is pivotally connected at one end with the pressure roller 17. Both struts 18 are connected together by means of a stiffening member for example in the form of a square section tube 19.
  • each strut 18 is pivotally connected with a link 20 which at its opposite end is pivotally connected to the frame of the device eg on bridge 3, as is denoted at 21.
  • the two links 20 are connected together in a similar fashion to the struts 18 by means of a stiffening or connection member for example in the form of a square section tube 22. Roughly in the middle between the two links 20 there is located on the square section tube 22 a mounting 23 on which the piston rod 24 of a piston cylinder device 25 is pivotally attached.
  • the opposite end of the piston cylinder device 25 is pivotally attached to the frame of the appara* tus for example on to bridge 3, as illustrated at 250.
  • Spring 26 which is fixed at one end by suitable means to the square section tube 22.
  • the other end of spring 26 is not attached or firmly fixed.
  • Spring 26 can be a spiral spring or as illustrated a leaf spring. The number of springs 26, the function of which will be described later, depends on the particular requirements.
  • a source 27 of a beam of light is attached on the frame device in such a fashion that the beam of light emitted therefrom impinges on the reflective coating 14a of the freely rotatable roller 14 arranged in front of the laying on end of the feed conveyor 4.
  • the device is placed in running condition, wherein the blower 8 is switched on so that a suction effect is generated in the suction channel 6. Simultaneously the feed roller 11 is driven so that it turns. Furthermore in this condition, the pressure roller 17 is arranged in the right hand position as seen in FIG. 1.
  • the flap 9 on the pressure side of the blower 8 is open at this point in time, since with a closed flap 9 no suction effect can be generated in suction channel 6.
  • a piece of washing is now grasped by an operative by hand and led upwardly past and in front of the feed roll 11 in an effort to lay the front end of the piece of washing on the feed conveyor 4 behind the laying on plate 13 but in front of the pressure roller.
  • the rear portion of the piece of washing aided by the turning of feed roll 11 according to the arrow shown in the drawing, is pulled into the suction channel 6, so that the piece of washing lies against the spreading edge of the spreading plate 15 against the covering sheet provided on the laying on end of the feed conveyor 4 and against the freely turnable roller 14.
  • the flap 9 located on the pressure side of the blower 8 is closed so that that suction action in channel is interrupted. Also by means of the breaking of the beam of light, but however after a certain delay time, the piston cylinder device 25 is activated so that the pressure roll 17 is moved from the right hand position as shown in FIG. 1 into the left hand position as shown in FIG. 2. However in between this the front end of the piece of washing is already laid on the feed conveyor 4, so that the pressure roller 17 during its movement leftwards as seen in FIG. 1 runs onto the front end of the piece of washing.
  • the link 20 operates at the left hand end position of the pressure roller 17 as shown in FIG. 1 a limit switch 20a (FIG. 1) by the operation of which the direction of movement of the pressure roll 17 is reversed and the flap 9 on the pressure side of the blower 8 is again opened by corresponding operation of the piston cylinder device 10.
  • the front end of the piece of washing lies on the feed conveyor 4 which is continuously driven without it already having been forwarded. Feeding begins at that point in time at which the pressure roller 17 runs onto the front end of the piece of washing. The pressure then exerted by the pressure roller 17 is sufficient in order to effect forwarding of the piece of washing, even after the renewed generation of suction power in the suction channel 6 as a result of the opening of flap 9 on the pressure side of blower 8.
  • the piece of washing is both billowed out and spread out so that it is practically wholly prepared on the feed conveyor 4 and fed in the direction towards the wash treating machine, for example the mangle.
  • the following piece of washing can be laid on using the mode of working previously described, even on to the preceding piece of washing, and fed from the feed conveyor 4. In this way it is possible to lay the pieces of washing on so that they run practically immediately after one another into the washing treatment machine.
  • spring 26 or springs 26 consists in that during the movement of pressure roller 17 to the right according to FIG. 1 they effect an increasingly great pressure on the pressure roll.
  • the spring 26 is fixed only at one end and stands freely. The direction in which they stand freely is so chosen that springs 26 stand practically free in the air (FIG. 2) when the pressure roller 17 is located its left hand position according to FIG. 1, i.e. in the position in which they are nearest the laying on end of the feed conveyor 4.
  • the angle of spring 26 varies as a result of its fixing to the square section tube 22 and it comes after a comparatively short time on to an abutment 26a on the rectangular section tube 19, which connects the two struts together and exercises, as a result of its suitable stiffness, an increasingly great force directed downwardly on to the pressure roller 17.
  • a switch (not shown) on touching of which the drive to the feed roll 1 1 is temporarily interrupted.
  • a switch (not shown) on touching of which the drive to the feed roll 1 1 is temporarily interrupted.
  • Such device is useful if for example strip towels of a length of about 30 m are to be fed with the device. With such band hand towels a loop of the band could form in suction channel 6 which, if the noted switch was not present, could reach in suction channel 6 right up to the sieve 6a and thereby eliminate the suction action.
  • the pres sure roller can have at each of its two ends a guide member which runs on a curved track of such shape that on moving the pressure roller 17 leftwards according to FIG. 1 the pressure roller 17 is first raised from the feed conveyor 4 and then near its left hand end po sition again set on the feed conveyor 4.
  • the curved track should be constructed suitably in this fashion so that on movement of the pressure roller 17 according to FIG. 1 to the right it is pulled back below the track so that then the pressure roller 17 runs on the feed conveyor 4.
  • a swingable flap 30 is provided before the laying on end of the feed conveyor 4 i.e. in front of the turn round roll 12, which is illustrated in FIG. 4 and which carries a freely rotatable roller 31 consisting of several individual rollers, of which one again has a reflective coating.
  • This flap 30 is movable between the two illustrated positions. In the position swung to the left according to FIG. 4, the laying on at the front end of the piece of washing on to the feed conveyor 4 takes place and the feeding of the piece of washing is then initiated by swinging the flap 30 to the right. This swinging of flap 30 to the right is generated in that on laying on the front edge of the piece of washing traverses the beam of light, which is so directed from the light beam source 27 that it impinges on the roller 31 when this is located in the position swung away from the laying on end of the feed conveyor 4.
  • the pressure roller 32 does not need to be moved to and fro, but it is sufficient that it can be lifted away from the feed conveyor 4 in controlled fashion and again set thereon.
  • means known per se can be used and in FIG. 4 the swinging mounting is only schematically illustrated.
  • a marking by means of which it is indicated to the operator approximately where the front end of the piece of washing should be laid on the feed conveyor.
  • a marking for example a colored wire, a colored rod or the like can be arranged at the appropriate position underneth the upper run of the feed conveyor 4. It is important here that the front end of the piece of washing is laid on in such a fashion that the pressure roller 17 on its movement in the direction towards the laying on end of the feed conveyor 4 should run on to the piece of washing.
  • the division of a single suction channel extending of the width of the device into a plurality of individual channels can suitably be carried out in that separator sheets are pushed into guidance slits or grooves in the wall of the suction channel.
  • the device described can in practice be used for all washing sizes but it is particularly suitable and convenient for so called small pieces such as hand towels, pillow cases, handkerchiefs, serviettes, kitchen towels, di apers etc.
  • An apparatus for feeding pieces of washing to a washing treatment machine comprising a frame, a drivable feed conveyor positioned on said frame, a freely rotatable pressure roller positioned above said feed conveyor, a suction channel positioned below said feed conveyor, a vacuum means connected to said channel whereby a piece of washing can be sucked to stretch it out, and a device connected to the frame which on contact with a piece of washing generates such a resistance to movement of the piece of washing that a piece of washing located with its front end laid on to the feed conveyor and with its rear end in the suction channel does not move.
  • the device generating the resistance to movement of the piece of washing defines a plate arranged in the laying on region of the feed conveyor and extending over the width of the feed conveyor, and includes means attached to said channel forming a spreading edge.
  • Apparatus according to claim 3 and a turn around roll wherein the plate is positioned in front of the turn round roll for said feed conveyor positioned in the laying on region and the spreading edge of said means is arranged essentially underneath the turn round roll.
  • the apparatus according to claim 3 including a freely rotatable roller positioned in front of the laying on end of the feed conveyor.
  • the apparatus according to claim 5 including a light beam source positioned above the feed conveyor and wherein the freely turnable roller has a reflective coating which constitutes the reflector for said light beam source.
  • the spreading plate is formed with an arcuate spreading edge and is provided near the edge with a row of apertures.
  • suction channel extends over the breadth of the feed conveyor.
  • the apparatus according to claim including a vertical air chamber on the rear end of the suction channel and a blower positioned within said chamber.
  • the apparatus according to claim 10 including a sieve between the suction channel and the air chamber.
  • the apparatus according to claim 10 including a controllable outlet opening on the pressure side of the blower.
  • the apparatus according to claim 1 including a drivable feed roller positioned in the region of the inlet end of the suction channel in order to promote the entry of the rear end of a piece of washing laid with its front end on the feed conveyor into the suction channel.
  • the apparatus according to claim 15 including a switchable drive for the feed roller.
  • the apparatus according to claim 15 including a friction clutch for overload protection for said feed roller.
  • the apparatus according to claim 18 including guide members on each end of said pressure roller and controllable tracks within which said guide members run so that the pressure roller on its movement in a direction towards the laying on end of the feed conveyor is first lifted therefrom and then again set thereon.
  • the apparatus according to claim 18 including a lifting means connected with the pressure roller in order first to lift the pressure roller from the feed conveyor during its movement in a direction towards the laying on end of the feed conveyor and then to place it thereon.
  • the apparatus according to claim 18 including a swingable means located on the frame and connected to the pressure roller, said means defining a strut pivotally connected to each end of the pressure roller and a link pivotally attached to the frame, each of said struts being additionally pivotally connected to said link.
  • the apparatus according to claim 21 including a piston cylinder means defining a piston rod pivotally connected to said link and a cylinder pivotally connected to the frame.
  • the apparatus according to claim 21 including at least one spring connected to the swingable means in such a fashion that on movement of the pressure roller in the direction away from the laying on end of the feed conveyor the pressure roller presses with increasing force against the feed conveyor.
  • the apparatus according to claim 1 constructed as a single track device with one pressure roller.
  • the apparatus according to claim 1 constructed as a multitrack device with a plurality of adjacent pressure rollers, a plurality of suction channels and a plurality of blowers which are operable independently and together.
  • the apparatus according to claim 26 including separator plates dividing said suction channel into a plurality of suction channels.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Cleaning In General (AREA)
US501984A 1974-04-26 1974-08-30 Apparatus for spreading and feeding pieces of washing Expired - Lifetime US3909964A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2420318A DE2420318C3 (de) 1974-04-26 1974-04-26 Vorrichtung zum Zuführen von Wäschestücken zu einer Mangel o.dgl

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US3909964A true US3909964A (en) 1975-10-07

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US501984A Expired - Lifetime US3909964A (en) 1974-04-26 1974-08-30 Apparatus for spreading and feeding pieces of washing

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US (1) US3909964A (nl)
JP (1) JPS5438429B2 (nl)
BE (1) BE819572A (nl)
DD (1) DD115167A5 (nl)
DE (1) DE2420318C3 (nl)
DK (1) DK145309C (nl)
FR (1) FR2268897B1 (nl)
GB (1) GB1484358A (nl)
IT (1) IT1021152B (nl)
NL (1) NL166079C (nl)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4345391A (en) * 1979-07-09 1982-08-24 Weir Henry J Laundry feeding machine
US4729181A (en) * 1984-02-03 1988-03-08 Weir Henry J Laundry feeder
US4967495A (en) * 1988-06-03 1990-11-06 Weir Henry J Vacuum feed system for feeding laundry articles onto a conveyor
US20040226198A1 (en) * 2003-05-12 2004-11-18 Finish Tech, Ltd. Gap reduction system and method for laundry processing
WO2017153511A1 (en) * 2016-03-11 2017-09-14 Jensen Denmark A/S An apparatus for receiving, spreading/extending and flattening

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52125366U (nl) * 1976-03-22 1977-09-22
DE2751722C2 (de) * 1977-11-19 1980-01-03 Herbert Kannegiesser Gmbh + Co, 4973 Vlotho Verfahren und Vorrichtung zum Zuführen von Wäschestücken oder ähnlichen Textiistücken zu einer Mangel o.dgl
DE2753511C3 (de) * 1977-12-01 1984-06-14 Herbert Kannegiesser Gmbh + Co, 4973 Vlotho Vorrichtung zum Zuführen von Wäschestücken o.ä. Textilstücken zu einer Mangel o.dgl.
DE2824084C2 (de) * 1978-06-01 1982-09-16 Kleindienst Gmbh & Co Kg, 8900 Augsburg Eingabevorrichtung für Mangeln o.dgl.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3736678A (en) * 1971-12-03 1973-06-05 Chicago Dryer Co Feeder apparatus
US3772808A (en) * 1972-04-19 1973-11-20 Super Laundry Mach Co Inc Flatwork feeding apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3736678A (en) * 1971-12-03 1973-06-05 Chicago Dryer Co Feeder apparatus
US3772808A (en) * 1972-04-19 1973-11-20 Super Laundry Mach Co Inc Flatwork feeding apparatus

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4345391A (en) * 1979-07-09 1982-08-24 Weir Henry J Laundry feeding machine
US4729181A (en) * 1984-02-03 1988-03-08 Weir Henry J Laundry feeder
US4967495A (en) * 1988-06-03 1990-11-06 Weir Henry J Vacuum feed system for feeding laundry articles onto a conveyor
US20040226198A1 (en) * 2003-05-12 2004-11-18 Finish Tech, Ltd. Gap reduction system and method for laundry processing
US7017291B2 (en) 2003-05-12 2006-03-28 Finishtech, Ltd. Gap reduction system and method for laundry processing
WO2017153511A1 (en) * 2016-03-11 2017-09-14 Jensen Denmark A/S An apparatus for receiving, spreading/extending and flattening
US10829887B2 (en) 2016-03-11 2020-11-10 Jensen Denmark A/S Apparatus for receiving, spreading/extending and flattening

Also Published As

Publication number Publication date
DD115167A5 (nl) 1975-09-12
GB1484358A (en) 1977-09-01
JPS5438429B2 (nl) 1979-11-21
IT1021152B (it) 1978-01-30
BE819572A (fr) 1974-12-31
NL7411804A (nl) 1975-10-28
DK145309B (da) 1982-10-25
DE2420318A1 (de) 1975-10-30
DK145309C (da) 1983-03-14
DE2420318C3 (de) 1978-12-21
FR2268897A1 (nl) 1975-11-21
DK468974A (da) 1975-10-27
DE2420318B2 (de) 1978-04-27
NL166079C (nl) 1981-06-15
JPS50141864A (nl) 1975-11-14
NL166079B (nl) 1981-01-15
FR2268897B1 (nl) 1978-03-31

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