EP0612879A1 - Appareil de pliage automatique de pièces de linge - Google Patents

Appareil de pliage automatique de pièces de linge Download PDF

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Publication number
EP0612879A1
EP0612879A1 EP93810097A EP93810097A EP0612879A1 EP 0612879 A1 EP0612879 A1 EP 0612879A1 EP 93810097 A EP93810097 A EP 93810097A EP 93810097 A EP93810097 A EP 93810097A EP 0612879 A1 EP0612879 A1 EP 0612879A1
Authority
EP
European Patent Office
Prior art keywords
laundry
conveyor
item
folding device
folding
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.)
Granted
Application number
EP93810097A
Other languages
German (de)
English (en)
Other versions
EP0612879B1 (fr
Inventor
Paul Weiermann
Martin Brönnimann
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.)
Jensen AG Burgdorf
Original Assignee
Jensen AG Burgdorf
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 Jensen AG Burgdorf filed Critical Jensen AG Burgdorf
Priority to DE59300080T priority Critical patent/DE59300080D1/de
Priority to EP93810097A priority patent/EP0612879B1/fr
Priority to US08/194,463 priority patent/US5540647A/en
Priority to JP6020477A priority patent/JP2609426B2/ja
Publication of EP0612879A1 publication Critical patent/EP0612879A1/fr
Application granted granted Critical
Publication of EP0612879B1 publication Critical patent/EP0612879B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • D06F89/00—Apparatus for folding textile articles with or without stapling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/12—Means using fluid made only for exhausting gaseous medium producing gas blast
    • B65H2406/122—Nozzles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S493/00—Manufacturing container or tube from paper; or other manufacturing from a sheet or web
    • Y10S493/937—Textile
    • Y10S493/938—Apparel

Definitions

  • the present invention relates to a folding device for automatically folding laundry items according to the preamble of claim 1.
  • Folding devices of the type mentioned are known. They generally comprise a lay-on conveyor on which a piece of laundry to be folded is placed and fed to the folding device. The item of laundry then passes into a longitudinal folding device, where it is folded once or twice in the longitudinal direction, depending on the width.
  • the item of laundry lies on the conveyor belts of a conveyor, with one or both side edges of the item of laundry being folded inwards by means of folding swords parallel to the conveyor belts, forming a longitudinal fold.
  • the longitudinally folded item of laundry is conveyed further and transferred to a transverse folding device adjoining the longitudinal folding device.
  • the item of laundry is guided over the two conveyors mentioned until the point of the item of laundry at which a first transverse fold is to be applied lies above the column mentioned.
  • the laundry conveyor connected downstream in the conveying direction mentioned reverses its conveying direction, while at the same time the item of laundry is pressed into the gaps by means of a folding sword and / or blow pipe by applying a first transverse fold.
  • This column extends obliquely from the conveying surface of the laundry conveyors mentioned downwards, preferably at an angle of about 90 °.
  • the deflection of the item of laundry to one side or the other is determined by the folding program, depending on whether the front edge of the folded item of laundry should be inside or outside.
  • the further laundry conveyor is also intended to discharge the item of laundry from the folding device.
  • the gap opening or the gap width is to be adapted to the respective item of laundry so that it is properly conveyed along the gap.
  • the adjustment range is large. So far, the gap width has been adjusted to the item of laundry with resilient means. When a piece of laundry is introduced into the column using the folding sword, the gap width has opened as far as necessary under the force of the laundry item.
  • the first-mentioned difficulty is eliminated with a folding device which has the features listed in the characterizing part of patent claim 1. If the folding device is additionally supplemented with the features of claim 9, the difficulties previously described in the second place can also be avoided.
  • Pneumatically acting cylinders are preferably used as the means for adjusting the gap width.
  • other means such as hydraulic cylinders, electric motors with gears, etc. could just as well be used.
  • the resilient effect mentioned at the beginning can still only be maintained for a fine adjustment of the gap width; this is when the locking cylinder for the gap width is controlled via an adjustable pressure reducing valve.
  • the type of item of laundry such as a blouse, smock, apron, overalls, etc., by means of which its thickness and thus the gap width can largely be determined, can be entered, for example, via a data input device.
  • This operating mode is advantageous if a series of similar items of laundry has to be folded.
  • Another embodiment variant provides that, for example, the thickness of the item of laundry which has already been folded longitudinally is determined directly with a measuring device which can be arranged in the longitudinal folding device or which can be located directly at the entrance of the transverse folding device. This can be done, for example, by measuring the contact height of the longitudinally folded item of laundry on a conveyor belt using a light barrier with a light band.
  • a third possibility provides for using a measuring device to determine the length of the item of laundry to be folded and to assign the item of laundry to a specific type on the basis of the length. For example, blouses, aprons, overalls, in relatively small areas, have typical lengths. The gap width can then be set on the basis of the type of laundry item determined in this way.
  • a light barrier is sufficient, with which the passage time of a item of laundry through the light barrier can be measured. With the help of the known conveying speed, the length of the item of laundry can then be easily calculated.
  • a preferred embodiment of the transverse folding device provides that only one laundry conveyor is slidably arranged to change the gap width. In the exemplary embodiment shown, this is the one downstream of the column, seen in the conveying direction of the item of laundry Laundry conveyor.
  • the laundry conveyor upstream of the column is stationary.
  • a dual swapping of the stationary and movable laundry conveyor would also be conceivable.
  • the setting of the gap width can be controlled so that this takes place before the insertion of a piece of laundry into the column. However, it can also have the effect that the gap width is still open or is opened briefly when a piece of laundry is introduced into the column, and is set to the previously determined value only a little later, after the first transverse fold has been formed.
  • a preferred embodiment provides that the gap width can take three predefined values with the setting means.
  • the folding sword and / or blow pipe for inserting the laundry item that has entered the transverse folding device into the column can always be inserted centrally into the column, regardless of the sliding position of the movable laundry conveyor, due to its arrangement on the pivoting lever.
  • the gap preferably extends downward at approximately a right angle to the direction mentioned.
  • a further laundry conveyor is arranged, which extends to the right and left, relative to the column and approximately parallel to the direction of entry of the item of laundry mentioned.
  • the item of laundry is deflected to the right or left to attach a second transverse fold.
  • the finished piece of laundry is discharged from the transverse folding device via the further laundry conveyor, which is also the discharge conveyor.
  • the belts of the further conveyor can be lowered in the region of the lower gap end before the laundry item is discharged, so that the inlet to the discharge conveyor section becomes wider and thick laundry items can be prevented from queuing.
  • the folding device according to FIG. 1 comprises a longitudinal folding device 1, which is followed by a transverse folding device 2. Both the longitudinal folding device and the transverse folding device have a machine frame 27, which is also a common machine frame can be designed.
  • the longitudinal folding device 1 has a lay-on conveyor 28, on which a piece of laundry intended for folding can be placed in the spread-out state in order to be subsequently introduced into the longitudinal folding device.
  • This essentially comprises a longitudinal conveyor 29 on which the item of laundry which is to undergo one or two longitudinal folds is placed. The item of laundry has been handed over to the longitudinal conveyor 29 by the support conveyor 28.
  • the transverse folding device has two laundry conveyors 5, 6 connected in series in the conveyed direction.
  • a first laundry conveyor 5 connects directly to the longitudinal conveyor 29 and a second laundry conveyor 6, always viewed in the conveying direction 3, connects to the first laundry conveyor 5.
  • a column 7 is present between the two laundry conveyors mentioned.
  • the first laundry conveyor 5 comprises a first lower conveyor part 19 and a first upper conveyor part 21.
  • the second laundry conveyor 6 comprises a second lower conveyor part 20 and a second upper conveyor part 22.
  • the two lower conveyor parts point transversely to the transverse folding device circumferential belts arranged side by side. These are designated 23 in the first lower conveyor section and 24 in the second lower conveyor section.
  • the orbit of these belts in each of the lower conveying parts mentioned is essentially one L-shaped.
  • One of the legs of the conveying parts mentioned is arranged approximately horizontally and forms the inlet path of a item of laundry marked 4 into the transverse folding device.
  • the other legs of the L of the two lower conveying parts face each other, but are spaced apart.
  • the width of said column 7 is formed by the distance between the spaced two leg parts 25 of the first lower conveyor part 19 and 26 of the second lower conveyor part 20.
  • the depth of the gap which extends from the substantially horizontal inlet plane for the item of laundry 4, preferably downward at approximately a right angle, is determined by the length of the leg parts 25, 26 mentioned.
  • the orbit of the belts 23, 24 of the lower conveying parts mentioned can easily be tracked on the basis of deflection rollers which are visible in the figures but are not provided with reference numerals. This also applies to the two upper conveyor parts 21, 22, the belts of which each rotate around two spaced apart rollers.
  • the first upper conveying part 21 comprises a pressure device 41 with which this conveying part is pressed resiliently to the associated lower conveying part 19.
  • the upper conveyor part 22 of the second laundry conveyor 6 comprises a pressure device 42, which has the task of resiliently pressing the latter upper conveyor part against the associated lower conveyor part 20 of the second laundry conveyor.
  • the further laundry conveyor 30 comprises a first upper conveying part 31, a second upper conveying part 32 and a lower conveyor part 33.
  • the first upper conveyor part 31 is arranged below the first lower conveyor part 19 of the first laundry conveyor 5 and the second upper conveyor part 32 is arranged below the second lower conveyor part 20 of the second laundry conveyor 6.
  • the lower conveyor part 33 of the further laundry conveyor 30 extends from the lower end of the column 7 to the right and left over the horizontal length of the two above-mentioned upper conveyor parts 31, 32.
  • the first upper conveyor part 31 forms, together with the lower conveyor part 33 of the further laundry conveyor 30, a discharge conveyor for a finished folded item of laundry.
  • the discharge location and the discharge direction are identified with the reference symbol 50.
  • the circumferential belts of the lower conveyor part 33 of the further laundry conveyor 30 have the reference symbol 34.
  • Another pressure device 43 resiliently holds the belts of the first upper conveyor part 31 against the belts 34 of the lower partial conveyor.
  • 8 denotes one of two spaced-apart side cheeks, between which the second laundry conveyor 6 and a part of the second upper conveyor part 32 are mounted and with which the laundry conveyor 6 and said part of the second upper conveyor part 32 can be displaced in the horizontal direction. Sliding guides for the side walls 8, relative to the machine frame 27, are identified by 9, 9 'and 9''.
  • the width of the column 7 is increased or decreased by moving the mentioned side cheeks 8.
  • 38, 39 and 40 are essentially blow pipes extending over the entire width of the transverse folding device, through which compressed air can escape, which causes or supports the generation of a transverse fold.
  • a folding sword 16, which is intended to a piece of laundry 4 in to insert column 7 is located centrally above column 7. It is articulated to one end of a sword lever 17, the other end of which is pivotally connected to a pivot lever 18 in the center.
  • the lower end of the pivot lever 18 is pivotally mounted on the machine frame 27 and the upper end of the pivot lever is pivotally connected to the side walls 8.
  • transverse folding will be described below with reference to the item of laundry designated 4, 4 ', 4''and4''.
  • the item of laundry passes from the longitudinal conveyor 29 in the direction indicated by 3 via the first laundry conveyor 5 and the second laundry conveyor 6 into the transverse folding device 2.
  • the running direction of the second laundry conveyor 6 is reversed, the folding sword 6 lowered by a drive means, not shown, and blown compressed air out of the blow pipe 38 to support the folding sword.
  • the item of laundry reaches column 7, forming a first transverse fold. This position of the item of laundry is denoted by 4 '.
  • the item of laundry When leaving column 7 at its lower end, the item of laundry is deflected to the right or left, depending on the running direction of the belts of the further laundry conveyor 30. In our example, a running direction from right to left is assumed.
  • the item of laundry 4 ' In a first phase, the item of laundry 4 'is deflected to the left as it emerges from column 7, up to approximately that with 4 '' position.
  • the direction of rotation of the further laundry conveyor 30 is reversed and at the same time the blow pipe 39 is actuated to dispense compressed air.
  • the item of laundry now passes with the formation of a second transverse fold between the second upper conveyor part 32 and the lower conveyor part 33 of the further laundry conveyor 30. This position is identified by 4 '''.
  • the item of laundry is now folded.
  • the running direction of the further laundry conveyor 30 is now reversed again, so that the item of laundry passes between the first upper conveyor part 31 and the lower conveyor part 33 of the further laundry conveyor 30 to the discharge location 50.
  • the folding process can vary depending on whether the front edge of a piece of laundry is to be on the outside or inside. After passing through column 7, the item of laundry can first be deflected to the right and then to the left, forming the second transverse fold, and can be discharged immediately. In this case, the blowpipe labeled 40 is used to form the second transverse fold.
  • the invention now provides, depending on the type of item of laundry, whether a thick or thin item of laundry has to be folded laterally, to change the width of the column 7 and at the lower end of the column mentioned the path of the belts 34 of the lower conveyor part 33 of the further laundry conveyor 30 adjust, depending on the one hand in which direction a piece of laundry emerging from the column is to be deflected first and, on the other hand, whether a fully folded piece of laundry is to be discharged from the folding device.
  • the setting of the gap width is in any case dependent on the thickness of a piece of laundry to be folded.
  • Three different variants for recording the type or the thickness of a piece of laundry to be folded is provided.
  • the type of laundry can be entered, for example, by an operator on a data input device 13.
  • the type of item of laundry can, however, as already stated above, be determined on the basis of its length.
  • a light barrier, designated 15, is present in the longitudinal folding device, for example.
  • the light barrier could also be arranged at another location, for example at the point of entry of the item of laundry into the transverse folding device 2.
  • Another possibility can be to measure the thickness of the item of laundry directly. This can be done, for example, by means of the light barrier shown with the reference numeral 14, which emits a light band transversely to the conveying direction 3, which is more or less interrupted depending on the height of the item of laundry lying on the longitudinal conveyor 29.
  • the means for adjusting the width of column 7 are marked with 10, 11 and 12.
  • a first pneumatic cylinder 10 is mounted in a horizontal position parallel to the displacement guide 9. Its front end is connected to the machine frame 27 and its rear end is attached to the cheek 8. By extending or retracting the piston rod of this cylinder 10, the second laundry conveyor 6 can be moved closer to the first laundry conveyor 5 or further away from it will. The width of the gap 7 is changed.
  • the folding sword 16 which is articulated on the sword lever 17, is visible in the middle above the open column 7.
  • the end of the sword lever 17 facing away from the folding sword 16 is pivotably mounted on the pivot lever 18 via the sword lever pivot bearing 46.
  • the pivot lever 18, which is designed in the form of a plate, has a lower pivot point which can be pivoted about a shaft 44 connected to the machine frame 27 and an upper pivot point which is arranged on the side cheeks 8 and is designated by the reference symbol 45.
  • the first pneumatic cylinder 10 is pressurized with compressed air to extend its piston.
  • the piston rod of a second pneumatic cylinder 11, which is firmly connected to the first laundry conveyor 5, has previously been fully extended.
  • the second laundry conveyor 6 is delivered to the first laundry conveyor 5 while reducing the gap width of the column 7, until a stop 12 connected to one of the side walls 8 on the extended piston rod of the second pneumatic cylinder 11 pending. Since the pressurization of the first pneumatic cylinder 10 is smaller than the pressurization of the second pneumatic cylinder 11, the second laundry conveyor 6 remains in the position shown in FIG. 3.
  • FIG. 5 shows the possibility of adjusting the belts 34 of the lower conveyor part 33 of the further laundry conveyor 30.
  • An adjusting roller 35 which is arranged in the area of the lower end of the column 7 below the belts 34, is slidably mounted in the said area for changing the belt orbit.
  • a length compensation roller 37 is also slidably mounted and is arranged along the orbit of the belts 34. It serves to keep the straps 34 taut when adjusting the adjusting roller 35.
  • the adjusting roller 35 is connected to the length compensation roller 37 via a linkage 36, which is only shown symbolically. Pneumatic cylinders, not shown, which act on the linkage are intended for adjusting the linkage.
  • the position of the belts 34 which is denoted by 47, indicates the position of the adjusting roller and the course of the belts 34 which is then taken up to produce the second transverse fold when the front edge of the item of laundry, such as shown in Fig. 1, should be outside.
  • the adjusting roller 35 and the length compensation roller 37 are lowered, so that the belts are given the course indicated by dashed or three-dot lines and designated by 49.
  • the inflow of the laundry item between the first upper conveyor part 31 and the lower conveyor part 33 of the further laundry conveyor 30 is expanded.
  • the entry point essentially forms a V, the legs of which converge towards the delivery point 50. This avoids queuing a piece of laundry.
  • control of the various cylinders, not shown, and the reversal of the direction of travel of the various laundry conveyors is carried out by means of a control device, not shown.
  • This receives the signals necessary for the control via transmitters, also not shown, arranged along the conveying path of the item of laundry to be folded, preferably in the form of further light barriers.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Treatment Of Fiber Materials (AREA)
EP93810097A 1993-02-18 1993-02-18 Appareil de pliage automatique de pièces de linge Expired - Lifetime EP0612879B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE59300080T DE59300080D1 (de) 1993-02-18 1993-02-18 Falteinrichtung zum automatischen Falten von Wäschestücken.
EP93810097A EP0612879B1 (fr) 1993-02-18 1993-02-18 Appareil de pliage automatique de pièces de linge
US08/194,463 US5540647A (en) 1993-02-18 1994-02-08 Folding apparatus for automatic folding of flatwork
JP6020477A JP2609426B2 (ja) 1993-02-18 1994-02-17 洗濯物を自動的に折り畳むための折り畳み装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP93810097A EP0612879B1 (fr) 1993-02-18 1993-02-18 Appareil de pliage automatique de pièces de linge

Publications (2)

Publication Number Publication Date
EP0612879A1 true EP0612879A1 (fr) 1994-08-31
EP0612879B1 EP0612879B1 (fr) 1995-02-08

Family

ID=8214917

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93810097A Expired - Lifetime EP0612879B1 (fr) 1993-02-18 1993-02-18 Appareil de pliage automatique de pièces de linge

Country Status (4)

Country Link
US (1) US5540647A (fr)
EP (1) EP0612879B1 (fr)
JP (1) JP2609426B2 (fr)
DE (1) DE59300080D1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
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FR2791367A1 (fr) * 1999-03-22 2000-09-29 Texpa Maschb Gmbh & Co Dispositif et procede pour plier une piece de tissu textile
EP1295982A1 (fr) * 2001-09-20 2003-03-26 Jensen AG Burgdorf Appareil de pliage de pièces de linge
WO2020064171A1 (fr) * 2018-09-26 2020-04-02 BSH Hausgeräte GmbH Appareil de traitement du linge comprenant un module de traitement du linge
EP3067460B1 (fr) * 2015-03-10 2024-05-01 Herbert Kannegiesser GmbH Procede destine au pliage de linge
EP4074885A4 (fr) * 2019-12-11 2024-05-01 Lg Electronics Inc Appareil pour plier les vêtements

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DE19814917C2 (de) * 1998-04-03 2000-09-21 Texpa Maschinenbau Gmbh & Co K Anlage zum Falten eines Textilbahnabschnitts
DE19828300A1 (de) 1998-06-25 1999-12-30 Bielomatik Leuze & Co Transportvorrichtung für Blattlagen, insbesondere Falzvorrichtung, sowie Verfahren zum Transportieren von Blattlagen, insbesondere zum Herstellen des Falzes
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KR20210061617A (ko) * 2019-11-20 2021-05-28 엘지전자 주식회사 의류 폴딩 장치
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CN113371526B (zh) * 2020-03-09 2023-12-05 青岛海尔洗衣机有限公司 一种叠衣机

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EP4074885A4 (fr) * 2019-12-11 2024-05-01 Lg Electronics Inc Appareil pour plier les vêtements

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EP0612879B1 (fr) 1995-02-08
US5540647A (en) 1996-07-30
DE59300080D1 (de) 1995-03-23
JPH07109067A (ja) 1995-04-25
JP2609426B2 (ja) 1997-05-14

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