DD139609A1 - DEVICE FOR FOLLOWING WAISTING PIECES - Google Patents

Description

P 06 F, 89/00

Device for folding laundry items

Application of the invention

The invention relates to a device for folding, laundry, in particular for transverse folding, in which at least two in the conveying direction one behind the other and at a distance from each other arranged scanning elements for. Limiting the space for the transverse folding are arranged.

Sij * kt eris policy of be can th tec hnischen solution

It is already a folding device (brochure Querfalt-. Machines Fa. Kannegießer, vlotho (3RD. ')) Known that not sorted out by machine foldable laundry items. For this purpose, microswitches are arranged below the straps of the longitudinal conveyor so that the space is limited for an exact transverse folding. If both microswitches are actuated by an excessively wide laundry item, then the folding mechanism switches off automatically and the laundry item is transported 'without folding to a downstream storage table'.

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Although the width of the laundry item B is detected in this device, the device is tainted with the fact that laundry items transported obliquely to the conveyor, which do not reach the maximum width B and thus do not simultaneously actuate both scanning elements, are nevertheless folded. Thus, there is no right-angle folding, so that the quality of the folded Y / ash piece does not meet the requirements.

Object of the invention. .. '-.

The aim of the invention is to design the device for folding items of laundry so that suitable only for folding laundry items trigger the folding mechanism and all laundry with an over-wide and / or lower length or a position deviation without performing a convolution pass the Faiteinrichtung

Presentation of the essence of the invention

In the known technical solution, the folding of the laundry item takes place even with existing skew or too small pieces of laundry under the condition that the width to be scanned is less, as the distance between the two arranged in the conveying direction sensing elements. ,

In order to avoid these disadvantages, the device according to the invention for folding laundry items, in particular for transverse folding, at least two in the conveying direction one behind the other and at a distance arranged scanning elements for limiting the space for the transverse folding has for detecting the length L and the position of the laundry item in the area the conveyor laterally of the arranged in Förde.rrichtüng Abtastele-

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at least one scanning device is arranged. The scanning elements are arranged so that they are located laterally of the downstream in the conveying direction sensing element and are arranged in a line next to each other and at right angles to the conveying direction. They are also arranged at transverse folds at the same distance from the folding rollers and are applicable on presentation of a suitable for folding laundry as Abtasteinrichtμng for the center correction.

In this case, the sensing elements are coupled so that only with simultaneous actuation of downstream in the conveying direction sensing element and the side of this arranged sensing elements and the release of upstream in the conveying direction sensing element of the longitudinal conveyor can be switched off and the FaIteinrichtung operable.

The piece of laundry transported on the conveyor first actuates the scanning element present at the entrance of the folding device. The pulse present is stored. Depending on the size of the laundry article and onward transport, the release of the actuated scanning element takes place on condition that the width B is less than the distance between the already actuated and downstream scanning element.

In the case of a rectangular feeding of a laundry article from a size suitable for the folding, the scanning elements for detecting the width B and the length L or the layer are then actuated. As a result, the switching off of the transport of the conveyor and the operation of the folding device takes place. At all

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other switching functions of the sensing elements of the laundry stop is taken out of service and the conveyor transports the laundry piece unfolded to a storage table.

- »4" · S e c tio ns 1

The invention will be explained below using an exemplary embodiment. In the accompanying drawing show:

1: the schematic representation of the device for splitting,

2 shows the section II - II of FIG. 1,

3 shows the section II - II showing a suitable laundry for the folding,

4 shows the section II - II with the representation of a width B to large laundry item,

5 shows the section II-II with the illustration of a laundry article placed too far to the left on the conveyor;

6 shows the section II - II with the representation of a conveyor on the far, right-applied laundry,

7: the section II - II with the representation of a small piece of laundry,

Fig. S: the section II - II with the representation. one in the length L is too small and ing /, the width B to large laundry ^article:

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9 and 10: the section II - II with the representation

from obliquely placed on the conveyor laundry items.

As can be seen from Figures 1 and 2, driven rollers 2 and 3 are arranged within a frame 1, around which the conveyor belts 4 run. The conveyor belts have the task of carrying out the transport of the laundry items 5 to the folding device.

Above the conveying plane of the conveyor belts 4 are pressure rollers 6; 7, cLie be moved by a working cylinder 8 in the working position "Likewise, above the conveying plane of the conveyor belts 4, a stop 9 is arranged, the actuation of which is effected by a working cylinder 10,

At the exit, the frame 1 is a storage table. 11, are transported to the non-folding for the folding laundry 5 by the conveyor belts 4.

When performing the folding v / ird the transport of the conveyor belts 4 is turned off and the folding rollers 6; 7 loading because of, driven by, the working cylinder 8 on the laundry rück'dieses through the conveying plane of the conveyor belts 4 in the inlet part of the folding rollers 12;

13 is pressed «. The case folded 5 piece of laundry is about the transport, not shown the table

14 supplied.

For detecting the size and the position of the laundry article 5, a sensing element 15 at the entrance of the case and in the conveying direction of the conveyor belts 4 before the stop. 9, a scanning element 17 arranged »Furthermore, are located on both sides of the sensing element

17 each another scanning element 16; 18. The sensing elements 15 and 17 have the task of the width B of the laundry item 5 with the predetermined distance between the sensing elements 15; 17, while the distance between the sensing elements 16 and 18 is compared by the same with length L of the laundry article 5. On the other hand, the scanning elements 16 and 18 to register the position of the laundry item 5.

The device for splitting operates as follows: As shown in FIG. 3, the laundry article 5, whose width B is less than the distance between the scanning elements 15 and 17 and which is at right angles to the conveying direction of the Ford belt 4, is replaced by the conveyor belt. dergurte 4 moves to the folding station · This is the actuation of the sensing element 15, wherein the resulting pulse is stored. In the further movement of the laundry stükkes the sensing element 15 is released again and the sensing elements 16; 17; 18 actuated. Since the width B of the laundry item 5 is less than the distance between the sensing elements 15 and 17 (Figure 3) and in addition the sensing elements 16 and 18 are actuated , the wash stop '9 remains in the lowest position. At the same time the drive of the conveyor belts 4 is stopped. The tail of the conveyor belts 4 is chosen so that the laundry item 5 abuts against the stop 9, so as to achieve a possible slight correction in the rectangular position. After stopping the conveyor belts 4, the folding takes place by the pressure rollers 6; 7 the laundry item 5 between the folding rollers 12; Press 13. At the same time, a corresponding center correction takes place, wherein the scanning elements 16 and 18 are used at standstill of the conveyor belts 4 as sensing elements for the central folding application. ,

In summary, the following operations are carried out in this folding, wherein the symbols used have the following meaning:

Pressure roller (6; 7): 0 = pressure rollers are located in the

Distance to the conveyor belts 4

L ⁼

Wash stop (9): 0 =

Pressure rollers lie on the laundry, so that the laundry is detected and folded by the folding rollers

Laundry stop is located directly above the conveyor belts 4 and thus in • effect position

L = laundry stop is raised and thus out of action

Scanning device (15; 16; 17; 18):

= Scanning device is not actuated

L = scanning device is actuated

Abtastein Laundry-*· contact pressure directions attack roll 175 17 18 16 9 6.5 7 Laundry with looo 0 0 Ucrmalgroße OLLL 0 ..I "

Thus a proper folding of the laundry is achieved » ^:

In all other cases the laundry item is: 5 not to be folded in the folder, d. H. the laundry item 5 is the tray 11 without folding supply. For this purpose, some examples will be given below: However, if there is a laundry item 5 having a width B of over 700 mm (Figure 4), the scanners (15; 16; 17 and 18) are covered and the laundry stop 9 is raised , so that the excess laundry article 5 is passed through the Fördergurtß 4 to the storage table 11 without transverse folding

 The following switching operations are carried out:

Abtastein- * Laundry contact pressure directions attack roll 15 17 18 16 9 6; 7 LO OO 0 0 LLLL L 0

Another possibility is that the laundry item 5 was placed too far to the left (Fig. 5). This laundry item 5 lies outside the middle correction area of the fold and is also to be singled out. Only the scanning devices 17 and 18 are covered while the third scanning device 16 remains free. The stop 9 is again moved upwards, so that the laundry item 5 passes without cross folding the device.

, Scanning-wash. Pressure directions stop roller 15 17 18 16 9 6; 7

LO 0 0 0 Os;

QOLL L 0

Was as shown in Figure 6 ₉ be placed too far right, where - in a similar Form'kann the piece of laundry.

also, as in the possibility described above is switched to run.

Abtastein Wäache- press contact directions attack roll 15 17 18 16 9 6; 7 looo 0 0 OLOL L O.

When entering a too small piece of laundry 5 (Fig, 7) also takes place only the actuation · of the sensing element 17, so that the laundry item 5 is transported further unfolded.

Abtastein Laundry 0 contact pressure directions attack L roll 15 17 18 16 9 6; 7 looo 0 0 0 0 L 0

The same work cycle is carried out at a laundry item 5 which is too narrow and too wide in width B (FIG. 8).

Scanning - washing - pressing directions stop roller 15 17 18 16 9 6; 7 LOOO 0 0 LOOL L "0

If the laundry item 5 is not fed at right angles to the transverse folding device, then the scanning devices 15; 16; 17; 18 differently covered ,. so that a separation of the laundry item 5 takes place. This is illustrated in two examples:.

Abtastein Laundry- contact pressure 9) directions attack roll 10) 15 17 18 16 9 .6; .7 10 0 0 0 0 0 10 1 L 0 (Fig. 0 1 1 0 1 0 (Fig.

or

From these examples, it can be seen that in each case only present at right angles to the conveying plane and in the dimensions (width B and length 1) predetermined pieces of laundry 5 are folded, while all other laundry pieces 5 unfolded through the folding device and are transported to the storage table 11.

Claims (6)

Protection claim 1. Apparatus for folding laundry articles, in particular for transverse folding, wherein at least two in the conveying direction one behind the other and arranged at a distance scanning elements for limiting the space for the transverse folding are arranged, characterized in that for detecting the position of the laundry item 5 and / or Limitation of the space perpendicular to the conveying direction of the conveyor (2; 3; 4) in the region of the conveying device (2; 3; 4) at least one scanning device (15; 17) arranged laterally in the conveying direction of the conveyor (2; 3; 4) 16, 18) is arranged, 2. Device according to item 1, characterized in that the scanning device consists of two scanning elements (16; 18). · 3. Apparatus according to item 1 and 2 _S characterized in that the scanning elements (16; 18) are arranged laterally of the nachg3ordneten in the conveying direction sensing element (17). , 4. Device according to items 1 to 3, characterized in that the scanning elements (16; 18) in a row u # l are arranged at right angles in the conveying direction of the conveyor (2; 3; 4). 5. Device according to items 1 to 4, characterized in that the scanning elements (16, 18) are arranged at the same distance from the folding rollers (12, 13). 6. Device according to items 1 to 5 »characterized in that the scanning elements (16; 18) can be used as a scanning device for the center correction when the conveyor (2; 3; 4) is at a standstill. liefzu ".JLSe drawings