SE440371B - PROCEDURE AND DEVICE FOR MACHINE PREPARATION OF LAUNDRY AND SUBSTITUTEALLY DIVIDED LAUNDRY GOODS FOR CONNECTING CONTINUATION, EXV INPUT IN LOSS - Google Patents

Description

8læÛÛ466-2 10 15 20 25 30 35 2 approximately to the level of the upper snippet, so that the two still free snibs hang down, of which one snippet is gripped and brought approximately to the level of the upper snippet, while the original lower snippet re-released. In this way, the washing piece is first tensioned diagonally and then edge-side. In the angular position, the washing piece can then be fed to a mangel feeding machine without any problems via a washing magazine known per se, a piece dividing device and a spreading device.

The method according to the invention thus benefits from the knowledge that a snippet always hangs at the bottom from an optionally gripped piece of laundry. The position of this individual snib can be easily determined via photocells or the like. Depending on this measuring signal, a clamp can then be adjusted in such a way that it grips the snout securely. In combination with a front, automatic sorting device, which measures the length of the washing piece which is in a stretched position, this length measuring signal can then suitably be transmitted to the clamping device according to the invention, whereby a measuring station is saved.

The gripping of one of the two tabs on the diagonally clamped washing piece takes place according to the same principle, however, with independent length measurement.

In a rectangular washbasin, which is clamped at two diagonally opposite snibs, the other two snibs hang down equally. Since only one of these two tabs is to be clamped, it is convenient to let one of the two clamps, between which the washing piece is clamped, go before the other.

In this way, the two hanging snibs are spaced apart from each other in the transport direction.

In order to achieve good profitability, it is suitable in the clamping device according to the invention to design the co-conveyor conveyor and the parallel conveyor as circuit conveyors where the clamps or gripping elements 10 lI 20 20 30 30 35 GIHJOÄGG-iïg in a circuit path.

With the method according to the invention it has been possible to grip a laundry piece hanging only in a snippet in a purely mechanical way in such a way that it can be brought to a gripped position, suspended in two adjacent snibs, and in this position carried to the treatment machine. In this way, considerable personnel costs can be saved and an increase in the preparation time can be achieved to only a small machine effort. In collaboration with a front automatic sorting device, a cost-saving fully automatic washing path is obtained, the automation of which extends from the washing machine to the defect and any subsequent folding machines or the like.

In a variant of the described embodiment, the method according to the invention and associated device can also be used in combination with the instructions in a separate patent application filed at the same time.

For this purpose, the washing piece is clamped diagonally by means of the feed and runner conveyors and passed through an automatic sorting device. In the diagonally tensioned position, the washing piece has a characteristic contour, which is sensed when transporting the tensioned washing piece past a measuring strip. The measured contour is then compared with contour images entered in a memory, after which the washing piece is routed to different collection stations via switches, depending on the comparison result. The device according to the invention for mechanical preparation of the laundry can be connected to these collection stations.

The invention is described in more detail below with reference to the accompanying drawings which show a preferred embodiment. Fig. 1 shows diagrammatically from the side a transport device for automatic preparation of a washing piece for feeding into a defect. Fig. 2 shows in perspective a device adjoining the transport device for transferring the laundry pieces to the defect. 8400466-2 10 15 20 25 30 35 4 In the embodiment shown in Fig. 1, a supply conveyor 31 is shown schematically, which transports laundry pieces 55 of a certain size in a hanging condition. The conveyor may be a discharge conveyor in a sorting plant, which, however, does not exclude that the washers 55 may have been taken over by the supply conveyor 3l in another way.

In the supply area of the conveyor 31, a length measuring strip 33 is arranged below it, which for example consists of a number of photocells or similar measuring elements placed one below the other. The height position of the length measuring strip 33 is then chosen so that both the shortest and the longest washing piece 55 hanging in the supply conveyor 31 can be sensed. Behind the length measuring strip 33 there are guide plates 34 with the aid of which the lower area of the washers 55 is inserted into the path of movement of a circulating runner conveyor 35. This conveyor is, for example, trapezoidal. The front part 36 of the follower conveyor 35 extends obliquely upwards between the guide plates 34, while the upper part 36a extends parallel to the supply conveyor 31 and at a certain distance therefrom laterally. The follower conveyor 35 is equipped with several pivotally mounted clamps 37 which are displaceable in the direction of the arrow shown.

A parallel conveyor 38 adjoins the follower conveyor 35 which, like the follower conveyor 35, is trapezoidal. The parallel conveyor 38 which extends into the area of runs like this obliquely upwards, front part 39, the co-conveyor 35, while the upper part 39a also runs horizontally with the supply conveyor 31 at a certain distance therefrom laterally. The parallel conveyor 38, like the accomplice conveyor 35, is equipped with clamps 40 which are displaceable in the indicated arrow direction.

In front of the obliquely upwardly extending front part 39 of the parallel conveyor 38, there is a height measuring strip 41, which, like the measuring strip 33, consists of a number of photocells or similar sensing elements placed below each other 8l + 00h66 ~ 25. The height position of the measuring strip 41 is chosen so that both the shortest and the longest part of the washing piece hanging in the supply conveyor 31l and also in the follower conveyor 35 can be sensed. In addition, a switch contact 42 is built into the upper part 39a of the parallel conveyor 38.

As can be seen in Fig. 2, the supply conveyor 31 and the upper part 39a of the parallel conveyor 38 open into a washing magazine 43, in which there is a dividing device 44 from which the washing pieces 55 reach an feeding machine 45.

Input machines are known per se and therefore do not need to be described in detail. The feed machine 45 shown in Fig. 2 consists, for example, of a feed and preparation web 32 in the form of breaker rollers 46 and 46a and belts 32a. In front of the feed and preparation path 32, there are spreading arms 47 at the level of the supply conveyor 31. above and below the lower part of the belts 32a there is an input photocell 50. After the photocell there is a feed roller 51 with a support roller 52 placed below it and a smoothing device consisting of two opposing brush belts 53 and a blowing device 54 below them.

The conveyors 31, 35, 38 and the washing magazine 43 with the dividing device 44 are known with regard to their constructive design in the transport technique, so details of these devices do not need to be shown.

The device shown in Figs. 1 and 2 operates in the following manner. Fig. 1 shows an automatic hanging process for the washing pieces 55, which process causes the originally washing pieces 55 hanging in a snippet to reach the feeding machine 45 according to Fig. 2 in such a way that they can be automatically taken over by this machine during insertion.

A washing piece 55 hangs in a tab a by means of a clamp or the like on the supply conveyor 31. In this hanging condition, the washing piece 55 is moved in the direction of the arrow 840Ûh66-2 10 15 _ 20 25 30 35 6 past the length measuring strip 33.

From a storage point 56 on the runner conveyor 35, a clamp 37 or the like is lifted in the direction of the arrow to the level of the lower tab c of the washing piece 33 determined by the length measuring strip 33. This point is obtained, for example, by the boundary between covered and exposed photocells. The clamp 37 lingers at this determined point in the waiting position for the snub c arriving at the wash piece 55. The guide plates 34, which form a guide gap, guide the wash piece 55 and its lower snub c to the clamp 37 waiting for the conveyor 35 in which the snib c is clamped. fixed. The exact time required for this can be determined, for example, depending on the continuous speed of the supply conveyor 31 or with contacts or the like not shown.

However, the supply conveyor 31 continuously transports the washing piece with the upper tab a and thus pulls the tab c on the conveyor 35 up to the level of the part 36a. Consequently, the washer 55 is pulled in the wasp a and braked in the wasp c. Finally, the washer 55 will hang taut diagonally between the supply conveyor 31 and the follower conveyor 35, the washers b and d of the washer hanging down. In this hanging position, the washing piece 55 passes the height measuring strip 41. Thereby, the process described in connection with the length measuring strip 33 is repeated in a similar manner.

From a storage place 57 on the parallel conveyor 38, a clamp 37a or the like is lifted in the direction of the arrow to the level determined by the height measuring strip 411 determined by the height measuring strip 41 and remains here in the waiting position. When the measured washcloth b has reached the clamp 37a waiting for the parallel conveyor 38, the clasp is clamped in this clamp, while the clamp 37 brought along by the follower conveyor 35 releases the clamped washcloth c in this clamp as soon as the clamp 37a with the clasp 37a therein is clamped. b thus acts on the break contact 42 on the parallel conveyor 10 15 20 25 30 35 8400466 ~ '2 7 38. Now the washing piece 55 with the tabs a and b hangs on the supply conveyor 31 and the parallel conveyor 38 and is in a position which is suitable for so-called longitudinal feeding in the defect or the feeding machine 45.

When the laundry piece is to be prepared for cross-feeding, instead of the snib b, the snib d is gripped and clamped by the clamp 37a on the parallel conveyor 38. Thus, the wash piece 55 hangs with its snibs a and d, ie with its long side, between the supply conveyor 31 and the parallel conveyor 38.

As already mentioned, the supply conveyor 31 and the parallel conveyor 38 open into a washing magazine 43 according to Fig. 2. The conveyor tracks already run apart here to the minimum width permitted for the washing pieces.

The dividing device 44 picks up the washing pieces 55 one at a time from the washing magazine 43. Via the extension arms 47, which extend the washing piece 55 to full width, the washing piece runs up to in the immediate vicinity of the supply roll 46 in the feed and preparation path 32 of the feed machine 45 and becomes further hanging there.

A pre-fed washing piece covers the supply photocell 50. As soon as the end of this washing piece exposes the photocell 50, for example, the entire feed machine 45 or possibly or only the supply and preparation web 32 is displaced with the details 32a, 46, 46a, 50-54. in the direction of the arrow, more precisely towards the direction of transport, by means of a displacement device (not shown), as indicated in Fig. 2 with broken lines. At the same time, the clamps in the spreading arms 47 are opened so that the front end of the washing piece will rest on the supply and preparation path 32. Thereafter, the feed machine 45 and the supply and preparation path 32, respectively, immediately return to the initial position. Conveniently, during this application process, i.e. from the forward movement to the end of the return movement, the operation of the supply and preparation path 32 can be switched off, 'æoor iíXLITY -. - _-...-...-. -._ ». _. -__. ...__ _... .. ._____, __, _____ \ _ __ _ l _......., .. _. Thereby ensuring an impeccable transfer of the laundry piece from the supply and preparation web 32 to the defect 58.

The washing piece then runs between the feed rollers 51 and 52 and over the opposite brush strips 53 and the blowing device 54 into the defect.

During this feeding through the feeding machine 45, the dividing device 44 already leads the subsequent washing piece to the spreading arms 47.

Instead of the input device 45 described as an example and schematically shown, the individual details of which are already known, other types of input machines can of course also be used.

The automatic feeding device also enables the loading of mangers with several supply paths by appropriately dividing the washing magazine 43 into distribution files, which lead to the individual paths. It is also possible to arrange a separate, automatic feeding device for each path.

Claims (11)

lO l5 20 25 30 aš fi lólhlëšlïál PATENTKRAV 1. l. Procedure for machine preparation of washed and divided laundry for connecting further processing, for example feeding into mangels, in which the washing pieces are successively hung in a snippet transported along a conveyor path, characterized in that the hanging lower snippet is gripped under the forward movement of the washing piece and while stretching the washing piece is brought approximately level with the upper snout, so that the two still free snips hang down, of which a snippet is then gripped and brought approximately level with the upper snout, while the original lower snibben eats friges. 2. A method according to claim 1, characterized in that the length of the hanging laundry piece is measured during its approximately horizontal forward movement and that a clamp or the like is brought to a height position corresponding to the measurement result to grip the lower snout. A method according to claim 1 or 2, in that the lower snibs with cores or the like moved in circuit circuits or the like are brought to a level with the upper snibe but at a distance therefrom. Device for carrying out the method according to one of the preceding claims, characterized in that the upper snub (a) of the washing piece (55) gripping clamps or the like are arranged along a supply conveyor (31), that two further, with clamps (37, 37a) or similar gripping conveyor conveyors (co-conveyor 35 and parallel conveyor 38) are arranged one after the other and partly overlapping each other, which upper parts (36a, 39a) of the circuit conveyors extend at approximately the same height as the supply conveyor (31) but at a distance therefrom, and that in the ascending part (36, 39) of the circuit conveyors (35, 38) there is a device for gripping the lower tab (c and c) of the washing piece (55). b or d). Device according to claim 4, characterized in that the clamps (37, 37a) or the like on the follower conveyor (35) and the parallel conveyor (38) are movable together with their conveyors or on trailers along them at the supply conveyor (31) and the washing piece. (55) feed. Device according to claim 4 or 5, characterized in that a collecting station (56, 57) for the clamps (37, 37a) is located before the ascending parts (36, 39) of the follower and parallel conveyors (35, 38), from which station the front clamp (37, 37a) can - is by means of a separate drive device movable up to level with the lower tab (c and b and d, respectively). Device according to one of Claims 4 to 6, characterized in that a measuring device (33, 41) is arranged in front of each of the ascending parts (36, 38) of the companion and parallel conveyors (35, 38). 39), which measuring devices determine the length of the hanging washing piece 55 and whose measuring results constitute a measure of the height movement of the clamp (37, 37a) to be brought to the receiving position. Device according to claim 7, in that the respective measuring device is designed as a vertical length strip provided with a series of photocells or similar sensing means. Device according to one of Claims 4 to 8, characterized in that there is a guide means between the first measuring device (33) and the ascending part (36) of the runner conveyor (35), for example two tapered wedges in the direction of the runner conveyor (35). other guide plates (34). Device according to one of Claims 4 to 9, characterized in that in the area of the upper part (39a) of the parallel conveyor (38) there is one of the controlled clamping jaws (37a) or of the washing piece. (55) movable switch (42) or the like, at the release of which the clamp (37) holding down the lower tab (c) is opened. 11. ll. Device according to one of Claims 4 to 10, characterized in that a washing magazine (43), a dividing device (44) and a feeding machine (45) provided with a spreading device (47) are arranged in connection with the supply conveyor. (31) and the parallel conveyor (38) running parallel to it.