EP2650427A2 - Method and device for feeding laundry items into a mangle or similar - Google Patents

Abstract

The method involves spreading respective laundry items (20) e.g. flat laundry, from a spreading device (10) i.e. input machine, by spreading a front edge before a feed conveyor (13), where the front edge runs transverse to a feeding direction (11). The laundry items are transported from the feed conveyor to an input conveyor (14) that is guided in the feeding direction. The laundry items include thickening parts (52) e.g. nodes or foreign matter, that are removed by the formation of gap between the feed conveyer and input conveyer or input conveyer and shortage (12). An independent claim is also included for a device for supplying laundry items to the shortage.

Description

The invention relates to a method for supplying laundry items to a defect or the like according to the preamble of claim 1. Furthermore, the invention relates to a device for feeding laundry items to a defect or the like according to the preamble of claim 8.

Laundry items are fed to a defect or the like with a so-called input machine. Such input machines have a spreading device which, viewed in the feed direction, is arranged downstream of a feed conveyor and an input conveyor. The spreader spreads the laundry items in front of the feed conveyor and places them either directly on the upper run of the feed conveyor or on an associated with the feed conveyor Ablegeleiste. From the feed conveyor, the laundry is transferred to the input conveyor, which transports it to the defect or other laundry treatment machine.

It happens that laundry items have so-called thickening. These can be caused for example by knots or foreign bodies in the laundry items. Such thickening can lead to damage to the defect or other laundry treatment machine. Therefore, it is common to detect items of laundry with thickening before entering into the defect or the like, for example by a thickness scan in a suction chute in front of the feed conveyor. If a piece of laundry having a thickening is detected, the procedure has hitherto been to stop the supply conveyor or the input conveyor and to manually remove the item of laundry containing the detected thickening. This leads to undesirable downtime not only the input machine, but also this subsequent lack and possibly a arranged behind the defect folding machine. In addition, the manual removal of a thickening laundry is labor intensive.

The invention has for its object to provide a method and apparatus for supplying laundry items to a defect or the like, which allow automatic removal of laundry items having thickening in uninterrupted operation of the input machine and the subsequent laundry treatment machines, in particular shortage.

A method for achieving this object comprises the measures of claim 1. Accordingly, it is envisaged to discharge laundry items having a thickening through a gap between the supply conveyor and the input conveyor or the input conveyor and the defect or the like. Such a gap can be formed and reversed during the operation of the deficiency line, in particular the input machine. A temporary stopping of the feed conveyor and / or the input conveyor is therefore no longer necessary in the method according to the invention. In particular, no operator needs to manually remove thickened items from the input conveyor or feed conveyor.

The gap is preferably formed by shortening an upper run of the input conveyor and / or the feed conveyor receiving the laundry items. In this way, the required for discharging thickened laundry items gap can form quickly and easily. Above all, the gap can be formed reliably and precisely by shortening the upper run, which ensures a targeted discharge of laundry items having thickening.

Preferably, the method according to the invention is developed in such a way that at least one detection means detects the item of laundry having a thickening and this item of laundry is deliberately discharged by forming the gap immediately in front of the edge of the detected item of laundry located in the feed direction. The detection means can thicken the laundry by scanning, weighing, image recognition or the like. If the detection means determines a thickening of a piece of laundry, it is forwarded to its control, which makes the formation of the gap in a timely manner, so that the item of laundry can be specifically released. Alternatively, the gap can also be formed when the front edge of the laundry item having a thickening has already passed slightly past the gap to be formed later, so that the gap is formed under the laundry item and the laundry item falls through the gap in a double-layered manner by approximately centering buckling. In this way, a particularly rapid discharge can be achieved, it being ensured that the gap is closed in good time before reaching the next, no thickening piece of laundry, even if the laundry items are immediately successively on the Zuführforderer or input conveyor.

An advantageous development of the method provides that a closing of the gap is controlled by the rear edge of the currently discharged by the gap piece of laundry or the leading edge of a next piece of laundry without thickening. By such an edge control a pinpoint closing of the gap is ensured, thereby ensuring that a non-thickening garment will not be accidentally ejected.

Advantageously, each discharged by the gap laundry with a thickening under the gap is collected, in particular by a conveyor that carries it away. This leads to a complete automation of the removal of thickened laundry items.

In input machines that work in multiple lanes or can be operated optionally one or more lanes, is provided according to an advantageous development of the method to form the gap in tracks. If there is a laundry with a detected thickening on a web, the gap only needs to be formed in this web. As a result, smaller items of laundry without thickening on any other web can continue to be fed without any restriction to the defect or the like. In other words, a targeted web-wise removal of laundry items having thickening can take place in this embodiment of the method.

An apparatus for solving the above-mentioned problem has the features of claim 8. In this device, it is provided to temporarily shorten a top strand of the input conveyor and / or of the supply conveyor carrying the items of laundry in a temporally controlled manner. This shortening of the upper run leads to a gap between the Input conveyor and the following in the feed direction deficiency or the like or between the input conveyor and the feed conveyor. In the latter case, both the upper run of the input conveyor and the feed conveyor can be shortened. Optionally, the upper runs of both the infeed conveyor and the infeed conveyor can be shortened starting from their mutually aligned ends. This reduces the amount of shortening of the upper run of the feed conveyor and the input conveyor, so that the gap formation and the gap reversal can be very rapid.

It is preferably provided to displace a deflection drum at one end of the upper run of the input conveyor, in particular on the end of the upper run of the input conveyor pointing towards the defect or the like, to form the gap for shortening the upper run against the feed direction. In this way, the removal of thickening having laundry immediately before the defect or the like, so at the latest possible time. Thus, even with long laundry items of the controller after the detection of thickening enough time to form in good time before the arrival of the leading edge of this piece of laundry in the lack of the gap for the automatic discharge of the thick or thickened laundry item.

A preferred embodiment of the device provides to store the displaceable tail pulley on a longitudinal guide. In this case, preferably, the longitudinal guide in turn led slidably associated with a support frame of the input conveyor. Due to this type of displaceability of a deflection drum of the input conveyor, the distance between the deflection drum at opposite ends of the input conveyor can be reduced for discharging laundry items having thickened portions, a skewing of the displaceable deflection drum being avoided by the longitudinal guide, thereby ensuring reliable straight-line guidance of the belts of the input conveyor shortened upper strand and while shortening and reversing the shortening of the upper strand is retained.

Advantageously, the longitudinal guide of at least one linear drive, which is preferably at least one pressure cylinder, in and against the feed direction relative to the support frame of the input conveyor displaceable. This ensures an automatic shortening of the upper strand as well as an equally automatic reversal of the shortening.

According to an advantageous embodiment of the device, the input conveyor is assigned a compensation drum. This serves to keep the straps of the input conveyor when moving the movable guide drum tight, whereby the straps are still driven circumferentially, in particular for discharging thickened laundry by the gap formed as a result of reducing the length of the upper run of the input conveyor.

In a preferred embodiment of the device, a balance shaft is provided. Preferably, a pivot arm is associated with each of the opposite ends of the balance shaft. The pivot arms are pivotable in dependence on the travel of the longitudinal guide relative to the support frame. The pivot arms of the displaceable tail pulley having longitudinal guide may be coupled in a gear with the support frame (also called support frame) to couple the pivoting path of the pivot arms to the travel of the longitudinal guide and hereby synchronize, whereby a misalignment of the longitudinal guide is mechanically avoided or compensated.

In a device for multi-lane feeding of laundry items to a defect or the like, it is preferably provided that the input conveyor for each web has an independently movable in and against the feed direction tail pulley. As a result, a gap for discharging a piece of laundry having a thickening can be created for each web independently of the other webs. The remaining tracks can continue to perform the lack of suitable laundry items of defect or other laundry machine. Thus, in the case of a piece of laundry having a thickening, not all the webs are blocked and it is not necessary to form a gap in each web if there is only one laundry with a thickening which is unsuitable for mangling.

Furthermore, in the case of a multi-lane device, it is preferably provided to associate each individual individual lane independently with a separate linear guide with at least one linear drive and a compensation drum and optionally a balance shaft. It is the same as the input conveyor on each lane designed for independent removal of a thickening having laundry per lane.

A particularly advantageous device has under the gap on a discharge conveyor for discharged through the gap laundry with a thickening. So not only each laundry item having a thickening automatically ausschleusbar, but also automatically conveyed. In a device with several adjacent webs for multi-lane feeding of laundry items to a defect or the like, a common discharge conveyor can be assigned to all lanes, so that thickened laundry items that are discharged on each web, can be dropped onto the same discharge conveyor and transported away from this , Preferably, the discharge conveyor is designed to remove discharged laundry items transversely to the feed direction. Such a discharge conveyor can be arranged without additional space under the need to be formed gap.

Fig. 1

eine schematische Seitenansicht einer Vorrichtung mit einer darauffolgenden (teilweise dargestellten) Mangel,

Fig. 2

die Vorrichtung der Fig. 1 beim Ausschleusen eines verdickten Wäschestücks,

Fig. 3

eine perspektivische Ansicht eines unteren Teils eines Eingabeförderers der Vorrichtung (ohne Gurte), und

Fig. 4

eine Seitenansicht des in der Fig. 3 gezeigten unteren Teils des Eingabeförderers.

A preferred embodiment of the invention will be explained in more detail with reference to the drawing. In this show:

Fig. 1

a schematic side view of a device with a subsequent (partially illustrated) lack,

Fig. 2

the device of Fig. 1 when removing a thickened item of laundry,

Fig. 3

a perspective view of a lower part of an input conveyor of the device (without straps), and

Fig. 4

a side view of the in the Fig. 3 shown lower part of the input conveyor.

In the apparatus shown here is a so-called input machine for feeding laundry items of all kinds, especially so-called flat laundry, to a shortage.

The device (input machine) has a spreading device 10 with spreading clamps not shown in the figures, a feed conveyor 13 arranged in the feed direction 11 behind the spreader 10 and an input conveyor 14 arranged in the feed direction 11 behind the feed conveyor 13. In the embodiment shown, the feed conveyor 13 is a feed conveyor Aligned 15. In the exemplary embodiment shown, the input conveyor 14 is designed as a so-called stretch conveyor with a cover conveyor 16 arranged above the input conveyor 14. The feed conveyor 13, the input conveyor 14 and the cover conveyor 16 have about several in the figures only partially shown adjacent endless straps 17, 18 and 19.

The expansion clamps of the spreading device 10 hold opposite corners of a front edge of the laundry item 20 shown only in some figures. By moving apart the expansion clamps, the laundry item 20 is spread out in front of the feed conveyor 13, in particular spread or stretched. The hanging down from the Spreizklammern lower part of the spread laundry article 20 is sucked into a suction chute 21 in front of and below the feed conveyor 13. At the upper end of the suction chute 21, a flap 22 pivotable about a horizontal axis of rotation is arranged. This serves to the thickness scanning of the laundry item 20th

After the laundry item 20 has been sucked into the suction chute 21, the laundry item 20 is placed on the delivery bar 15 with the front edge stretched between the expansion clamps, whereby the laundry item 20 is transferred from the spreading clamps of the spreading device 10 to the delivery bar 15. The Ablegeleiste 15 is then moved in the feed direction 11 on the feed conveyor 13 and thereby pass the front, stretched transverse edge of the laundry article 20 of the Ablegeleiste 15 to the feed conveyor 13. The feed conveyor 13 then transports the item of laundry 20 in the feed direction 11 to the input conveyor 14, the rear part of the item of laundry being pulled past the flap 22 past the suction chute 21. In the illustrated embodiment, in which the input conveyor 14, a cover conveyor 16 is assigned, the laundry item 20 between the upper run 23 of the input conveyor 14 and a lower run 24 of the cover conveyor 16 in the feed direction 11 are transported to the defect 12 and entered into the same after passing the front end 25 of the input conveyor 14.

In a special way, the input conveyor 14 is formed. Its length is changeable seen in the feed direction 11, in such a way that the front end 25 of the input conveyor 14 against the feed direction 11 from an input side 26 of the shortage 12 is moved away. In this way, temporarily a gap 27 (FIG. Fig. 2 ) between the front end 25 of the input conveyor 14 and the input side 26 of the defect 12 are formed. To form this gap 27, the upper strand 23 of the input conveyor 14 is shortened. For this purpose, a deflecting drum 28 forming the front end 25 of the input conveyor 14 for the narrow, juxtaposed Belts 18 of the input conveyor 14 against the feed direction 11 zurückbewegbar and in the feed direction 11 vorbewegbar to close the gap 27 again.

The device shown here is used either for single or two-lane feeding of laundry items 20 to the shortage 12. One-lane large laundry items are supplied to the shortage 20, which require almost the entire working width of the device and the input conveyor 14. Two-lane smaller (narrower) laundry items 20 are supplied to the shortage 12, which do not exceed half the working width of the device of the input conveyor 14. In order to be able to input smaller items of laundry 20 in two lanes independently of one another, at least the input conveyor 14 is divided centrally into two halves relative to the working width of the apparatus. Accordingly, two identical, in particular equal, each only over half the working width of the input conveyor 14 extending deflecting drums 28 on a same, arranged transversely to the feed direction 11 extending horizontal axis adjacent to each other.

The necessary to form the gap 27 and to change the length of the upper run 23 movability of the deflection drums 28 in and against the feed direction 11 is brought about by each tail pulley 28 is mounted on a slide-like longitudinal guide 29. Opposite sides of each longitudinal guide 29 are slidable in rails 30 which are mounted longitudinally to the feed direction 11 extending on a fixed support frame 31 for in particular the remaining guide drums 32 and 33 of the input conveyor 14. This deflection drums 32 and 33 are assigned together with the support frame 31 of the device immutable (input machine). The displacement of the guide drums 28 carrying longitudinal guides 29 in and against the feed direction 11 is effected by linear actuators. In the illustrated embodiment, each serving for supporting a tail pulley 28 longitudinal guide 29 associated with two parallel longitudinal guides, which are designed as a pressure medium cylinder 34, preferably as a pneumatic cylinder. The two pressure medium cylinders 34 of each longitudinal guide 29 are assigned to opposite edge regions of the longitudinal guide 29. A piston 35 of each pressure medium cylinder 34 is fixedly connected to a pressure side directed away from a piston rod 36 on a rear crosspiece 37 of the support frame 31. A parallel to the rear cross member 37 extending stationary on the support frame 31 arranged, front cross member 38 serves to attach a piston rod side of each pressure cylinder 34. The cross members 37 and 38 are not like the longitudinal support 29 and the tail pulley 28 divided centrally like the whole support frame 31. The free ends of the piston rods 36 in each case two pressure medium cylinders 34 are connected to a rear side 39 of the respective support frame 31. At the rear 39 opposite Front of the single (undivided) support frame 31 is the associated deflection pulley 32nd

In the embodiment shown, each longitudinal guide 29 is assigned a straight-line guide in order to prevent jamming caused by misalignment of the respective longitudinal guide 29 in the rails 30. Each web half of the input conveyor 14, ie each longitudinal guide 29, is assigned its own straight-line guide. Each of the identically formed linear guides has a transverse to the feed direction 11 horizontal balancing shaft 40 which is freely rotatably mounted behind the front cross member 38 in fixedly fixed to the support frame 31 bearing brackets 41. At opposite ends of each balance shaft 40 is non-rotatably mounted on the balance shaft 40, a lever arm 42. At one of the balance shaft 40 directed away free end of each lever arm 42 is a variable length coupling rod 43 articulated. A lever arm 42 opposite end of each coupling rod 43 is connected to a second lever arm 44 which is non-rotatably connected to a longitudinal edge of the respective longitudinal guide 29. Characterized in that two longitudinal edges of each longitudinal guide 29 is associated with a coupling rod 43 in connection lever arm 44, a coupling of the two opposite longitudinal edges of each longitudinal guide 29 is brought about the balance shaft 40, whereby tilting of the longitudinal guide 29 in the rails 30 during passage and Moving back the respective deflection drum 28 are avoided by the two pressure medium cylinders 34 assigned to each support frame 31.

Fixed under each longitudinal guide 29 is a freely rotatable tail pulley 45 is arranged. The respective deflection drum 45 is thereby movable with the longitudinal guide 29 of the pressure medium cylinders 34. To each tail pulley 45 is a belt loop of the lower run 46 of the input conveyor 14 is guided around in a U-shape. The stationary support frame 31 is associated with an optionally over the entire working width of the input conveyor 14 extending further deflection drum 47. This is not connected to the movable together with the support frame 31 deflection pulley 45 and thereby relative to the tail pulley 45 stationary. The tail pulley 47 is at close to the defect 12 moved up deflection drums 28 ( Fig. 1 The lower run 46 of the straps 18 of the input conveyor 14 is brought from the pointing to the defect 12 deflecting drums 28 from above to the tail pulley 45 at the longitudinal guides 49 as seen in the feed direction 11 in front of the idler pulleys 45 and deflected down to the tail pulley 47. From this tail pulley 47 is the lower strand 46 to an over the entire working width of the input conveyor 14 continuous deflection drum 32 guided at the feed conveyor 13 facing the rear end of the input conveyor 14. Between this deflection drum 32 and the deflection drums 28, the upper strand 23 of the input conveyor 14 runs.

At a distance above the upper strand 23 of the input conveyor 14, a sensor 49 for detecting the front transverse edge and / or the rear transverse edge of the laundry article 20 is associated with each web of the input conveyor 14 at a slight distance from the deflection drums 28 facing the defect 12.

In the illustrated device (input machine), the front end 25 of the input conveyor 14 is assigned a transversely to the feed direction 11 extending, preferably horizontal discharge conveyor 50. With the gap 27 open, that is to say against the feed direction 11, the deflection drum 28 of the respective input conveyor 14 has an upper run 51 of the removal conveyor 50 below the gap 27 for receiving items of laundry 20 thickened by the gap 27. Such laundry items 20 are transported laterally from the device under the input conveyor 14 by the discharge conveyor 50 transversely to the feed direction 11, for example to a laundry trolley for receiving the separated laundry items 20.

• Das erfindungsgemäße Verfahren ermöglicht ein automatisches Ausschleusen von Verdickungen aufweisenden Wäschestücken 20, die zum Mangeln ungeeignet sind. Bei einer Verdickung kann es sich beispielsweise um Knoten im Wäschestück 20 oder Fremdkörper in denselben handeln. In den Fig. 1 und 2 ist eine Verdickung 52 des Wäschestücks 20 symbolisch dargestellt. In der Fig. 1 befindet sich die Verdickung 52 unten im Saugschacht 21. Die um eine Schwenkachse am unteren Ende schwenkbare Klappe 22 ist aktiviert, indem der freie obere Rand der Klappe 22 an einer Seite des Wäschestücks 20 anliegt und dieses mit der gegenüberliegenden Seite gegen eine Wandung des Saugschachts 21 drückt. Wenn nun das von den Spreizklammern der Spreizeinrichtung 10 mit der vorderen Querkante auf der Ablegeleiste 15 abgelegte Wäschestück 20 nach der Übergabe auf den Zuführförderer 13 von demselben aus dem Saugschacht 21 herausgezogen wird, führt die Verdickung 52 zum Aufschwenken der Klappe 22, womit ein Wäschestück 20 mit einer Verdickung 52 detektiert wird. Die Steuerung des Antriebs des Eingabeförderers 14 erhält dann ein Signal, das in dem Moment, in dem ein vorangehendes Wäschestück 20 ohne eine Verdickung in die Mangel 12 eingelaufen ist und den Eingabeförderer 14 mindestens größtenteils verlassen hat, das Obertrum 23 des Eingabeförderers 14 verkürzt zur Bildung des Spalts 27 zwischen der Eingabeseite 26 der Mangel 12 und dem vorderen Ende 25 des Eingabeförderers 14. Der richtige Zeitraum zur Bildung des Spalts 27 kann durch den Sensor 49 über dem Obertrum 23 des vorderen Endes 25 des Eingabeförderers 14 an die Steuerung weitergegeben werden, die dann das Startsignal zur Bildung bzw. zum Öffnen des Spalts 27 gibt. Dieses Startsignal kann durch die Hinterkante des vorangehenden Wäschestücks 20 ohne eine Verdickung 52 oder auch die voraneilende Vorderkante des die Verdickung 52 aufweisenden Wäschestücks 20 gegeben werden.

Hereinafter, the inventive method with reference to the device described above and the FIGS. 1 and 2 explains:

• The inventive method allows automatic discharge of thickened laundry items 20, which are unsuitable for mangling. A thickening may be, for example, knots in the garment 20 or foreign bodies in the same. In the Fig. 1 and 2 is a thickening 52 of the laundry item 20 shown symbolically. In the Fig. 1 the thickening 52 is below in the suction chute 21. The pivotable about a pivot axis at the lower end flap 22 is activated by the free upper edge of the flap 22 abuts one side of the laundry article 20 and this with the opposite side against a wall of the suction chute 21st suppressed. Now, if the deposited by the expansion of the spreader 10 with the front transverse edge on the tray 15 garment 20 is pulled out after the transfer to the feed conveyor 13 of the same from the suction chute 21, the thickening 52 leads to the swinging of the flap 22, whereby a piece of laundry 20th is detected with a thickening 52. The control of the drive of the input conveyor 14 then receives a signal that at the moment in which preceding garment 20 has gone into the defect 12 without thickening and has left the input conveyor 14 at least for the most part, the upper run 23 of the input conveyor 14 shortens to form the gap 27 between the input side 26 the defect 12 and the front end 25 of the input conveyor 14 proper time to form the gap 27 can be passed through the sensor 49 on the upper run 23 of the front end 25 of the input conveyor 14 to the controller, which then gives the start signal for opening or opening of the gap 27. This start signal can be given by the trailing edge of the preceding laundry item 20 without a thickening 52 or also the leading leading edge of the thickening 52 having laundry 20.

The gap 27 is opened by driving away the deflecting drum 28 forming the front end 25 of the input conveyor 14 from the defect 12 and thereby shortening the upper run 23 of the input conveyor 14. The shortening of the upper run 23 is carried out by driving the deflecting drums 28 away from the defect 12 by a retraction of the deflection drums 28 with the longitudinal guides 29 against the feed direction 11 by retracting the pressure medium cylinder 34. In a single-lane input requiring large laundry items 20 both longitudinal guides 29 with their idler pulleys 28 synchronously against the feed direction 11 to form a over the entire working width of the input conveyor 14 continuous gap 27 retracted. For smaller items of laundry 20, which allow a two-lane feed to the shortage 12, only the longitudinal guide 29 with its associated deflection drum 28 of that web is retracted to form a more than half the working width extending gap 27 on which the thickening 52 having laundry 20th located.

The balance shaft 40 ensures a tilt-free method of the respective longitudinal guide 29 in the rails 30. The balance shaft 40 allows only a synchronous process on both sides of the respective longitudinal guide 29.

If the gap 27 is opened for the discharge of a thickening 52 having Wäschesücks 20, which has a shortening of the upper strand 23 result. In order that the straps 18 of the input conveyor 14 nevertheless remain taut and thus the further transport of the item of laundry 20 is ensured by the shortened input conveyor 14, the lower run 46 has a belt loop. When the respective longitudinal guide 29 with deflecting drum 28 is moved back against the feed direction 11 in order to form the gap 27, the lower guide 29 is fastened under the respective longitudinal guide 29 Deflecting drum 45 and thus moves away from the stationary deflection drum 47. This results in an enlargement of the belt loop, whereby the straps 18 of the input conveyor 14 always remain stem.

When the gap 27 is open, a laundry item 20 having a thickening 52 falls through the gap 27 onto the removal conveyor 50 arranged transversely underneath, from which the laundry item 20 is conveyed laterally out of the area of the input conveyor 14. The sensor 29 detects the passing of the rear end of the at least one thickening 52 having laundry 20 and then closes the gap 27, unless the subsequent laundry item 20 also not at least one thickening 52 has. In the case of a subsequent garment 20 without a thickening 52, the gap 27 is closed before the front transverse edge of such a garment 20 reaches the front end 25 of the input conveyor 14, so that such a garment 20 of the input side 26 of the defect 12 can be supplied.

The inventive method can also be modified so that the gap is not formed between the defect 12 and the front end 25 of the input conveyor 14, but between the input conveyor 14 and the feed conveyor 13. In this case, preferably also the upper strand 23 of the input conveyor 14th shortened. It is also conceivable that, alternatively or additionally, the upper strand of the feed conveyor 13 is shortened when a gap for discharging a laundry article 20 having at least one thickening 52 is formed between the feed conveyor 13 and the input conveyor 14.

LIST OF REFERENCE NUMBERS

10 spreading 36 piston rod 11 feed 37 rear crossbeam 12 defect 38 front crossbeam 13 feed conveyor 39 back 14 input conveyor 40 balancer shaft 15 pen tray 41 bearing support 16 deck conveyor 42 lever arm 17 belt 43 coupling rod 18 belt 44 lever arm 19 belt 45 Umlenktrommel 20 laundry 46 strand 21 suction well 47 Umlenktrommel 22 flap 49 sensor 23 obertrum 50 discharge conveyor 24 strand 51 obertrum 25 front end 52 thickening 26 entry page 27 gap 28 Umlenktrommel 29 longitudinal guide 30 rail 31 shoring 32 Umlenktrommel 33 Umlenktrommel 34 Pressure cylinder 35 piston

Claims (15)

A method for feeding laundry items (20) to a defect (12) or the like, wherein a respective laundry item (20) by a spreading device (10) by spreading a transversely to the feed direction (11) extending front edge in front of a feed conveyor (13) and spread with the spread front edge on the feed conveyor (13) or an associated Ablegeleiste (15) is stored, and the laundry item (20) from the feed conveyor (13) to this in the feed direction (11) subsequent input conveyor (14) is transported, the the laundry item (20) enters the defect (12) or the like, characterized in that a laundry item (20) with a thickening (52), for example a knot or a foreign body by forming at least one gap (27) between the feed conveyor (13 ) and the input conveyor (14) or the input conveyor (14) and the defect (12) or the like is discharged. Method according to claim 1, characterized in that the at least one gap (27) is formed by shortening the upper part (23) of the input conveyor (14) and / or the feed conveyor (13) carrying the respective item of laundry (20). Method according to one of claims 1 or 2, characterized in that at least one detection means by mechanical scanning, image recognition, weighing or the like a thickening (52) exhibiting laundry (20) is determined and this item of laundry (20) is selectively discharged by the detection means controls the formation of the respective gap (27) in such a way that it arises in time so that the item of laundry (20) having the thickening (52) can be discharged through the respective gap (27). Method according to one of the preceding claims, characterized in that the laundry article (20) having the thickening (52) is discharged through the respective gap (27). Method according to one of the preceding claims, characterized in that a closing of the respective gap (27) is controlled by a rear edge of the currently discharged by the gap (27) garment (20) or a front edge of a subsequent garment (20) without a Thickening (52). Method according to one of the preceding claims, characterized in that a through the respective gap (27) discharged laundry item (20) with a thickening (52) under the respective gap (27) is collected, preferably transported away. Method according to one of the preceding claims, characterized in that in the case of multi-lane feeding of laundry items (20) from the input conveyor (14) and / or the feed conveyor (13), the gap (27) for discharging laundry items (20) with a thickening (52) is formed in tracks. Apparatus for feeding laundry items (20) into a defect (12) or the like, with a feed conveyor (13) optionally having an ejection bar (15) and with an input conveyor (14) following in the feed direction (11) on the feed conveyor (13), from which the items of laundry (20) can be transported to the defect (12) or the like, characterized in that a top run (23) of the input conveyor (14) and / or of the feed conveyor (13) carrying the items of laundry (20) can be shortened to form at least a gap (27) between the input conveyor (14) and the defect (12) or the like and / or between the input conveyor (14) and the feed conveyor (13). Apparatus according to claim 8, characterized in that at least one deflecting drum (28) at one end of the input conveyor (14), preferably at one of the defect (12) or the like facing front end (25) of the input conveyor (14), for forming the at least a gap (27) against the feed direction (11) for shortening the upper run (23) of the input conveyor (14) is displaceable. Apparatus according to claim 8 or 9, characterized in that the at least one displaceable tail pulley (28) is mounted on a longitudinal guide (29) and the longitudinal guide (29) guided slidably associated with a support frame (31) of the input conveyor (14), in particular the Longitudinal guide (29) a balancing shaft (40) for mechanically guided displacement of the at least one longitudinal guide (29) relative to the stationary support frame (31). Device according to one of claims 8 to 10, characterized in that the at least one longitudinal guide (29) of at least one linear drive, preferably one or two pressure medium cylinders (34), in and against the feed direction (11) relative to the support frame (31) of the input conveyor (14) is displaceable. Device according to one of claims 8 to 11, characterized in that the input conveyor (14) is associated with a compensating drum for strapping straps of the input conveyor (14) when shortening an upper run (23), preferably a variable in length belt loop from the compensating drum is picturable. Device according to one of claims 8 to 12, characterized in that the compensating drum is mounted on the respective longitudinal guide (29), wherein the compensating drum together with the longitudinal guide (29), which is associated with the compensating drum, with respect to the support frame (31) of the input conveyor (14) in and against the feed direction (11) is movable. Device according to one of claims 8 to 13, characterized in that for multi-lane feeding of laundry items (20) to the defect (12) or the like of the input conveyor (14) for each web independently in and against the feed direction (11) displaceable tail pulley (28 ) and / or longitudinal guide (29), wherein preferably each independently movable web deflection pulley (28) is assigned its own longitudinal guide (29) with at least one linear drive and a compensating drum. Device according to one of claims 8 to 14, characterized in that under the respective gap (27) a discharge conveyor (50) for through the gap (27) discharged laundry items (20) is provided with a thickening (52), wherein preferably the discharge conveyor (50) transports the discharged laundry items (20) transversely to the feed direction (11) out of the area of the input conveyor (13).

Images