DK2499286T3

DK2499286T3 - Apparatus for textile wash

Info

Publication number: DK2499286T3
Application number: DK11758088.6T
Authority: DK
Inventors: Wolf-Peter Graeser; Eckhardt Marckwardt
Original assignee: Lavatec Laundry Tech Gmbh
Priority date: 2010-06-25
Filing date: 2011-05-24
Publication date: 2016-12-05
Also published as: ES2601821T3; PL2499286T3; EP2499286A2; EP2499286B1; WO2011160614A3; PT2499286T; WO2011160614A2; DE102010025139A1

Description

The invention relates to an apparatus for washing textiles, in particular a batch type washing system, having a washing drum which is subdivided into individual chambers, wherein the washing drum is at least partially surrounded by an outer drum. The invention further relates to a method for producing a corresponding apparatus.

Apparatuses for washing textiles of the type mentioned in the introduction have been known for many years in the prior art. Merely by way of example, reference may be made to DE 3903458 C2. The known apparatus comprises a horizontal, rotatably supported washing drum which is open at both ends and which is subdivided into individual chambers and which is surrounded by a washing tub which receives the washing liquor. The washing operation is carried out by reversing partial rotations of the washing drum and the laundry is conveyed from chamber to chamber with a complete revolution through 360 degrees in one direction.

The length of the washing drum determines both the cycle time and the capacity of the batch type washing system, wherein in practice washing drums having a length of over 10 m are certainly used.

The known washing drums have the disadvantage that the production thereof is extremely complicated and time-consuming. If the desired length of the washing drum is fixed, the "inner workings", such as, for example, carriers, separating walls, paddles, are fitted in a pipe corresponding to the length of the washing drum. To this end, the workers have to crawl inside the washing drum and carry out the necessary work in an extremely tight space. In addition to the large amount of time taken and the related costs, this work also involves health risks for the workers who have to move inside the pipe over a relatively long period of time in a stooped posture during technical welding operations.

Another disadvantage is that the washing drums are produced individually in accordance with customer requirements so that considerable time passes from the receipt of the order until production and finally delivery.

Reference may further be made to DE 2345943 A1 and DE 2527502 A1 by way of example.

Therefore, an object of the present invention is to configure and develop an apparatus for washing textiles and a method for producing such an apparatus of the type mentioned in the introduction so that the apparatus can be produced in accordance with individual requirements by structurally simple means with little expenditure in terms of work and time .

The above object is achieved by the features of patent claim 1. Accordingly, the apparatus of the generic type for washing textiles is characterised in that the washing drum is composed of prefabricated modules which are connected to each other .

It has been recognised according to the invention that as a result of the construction of the washing drum from prefabricated modules - in accordance with the "modular principle" - the time from order to delivery can be substantially reduced. As a result of the modular construction, the length of the batch type washing system can be varied in an extremely simple manner in accordance with customer requirements, and consequently the capacity and cycle time. Another advantage is that the production of the modules does not necessarily have to be carried out at the location at which the washing drum is ultimately assembled. With respect to the module production, therefore, it becomes possible to use "outsourcing", that is to say, to have the modules produced, for example, more cheaply abroad. The modular construction further results in the pipe portions to be processed now being a great deal shorter. Consequently, the work involved can be carried out from the outer side, whereby the working conditions are improved and the time expenditure of that work is substantially shorter.

Advantageously, the washing drum comprises at one end thereof an intake module, which a ball race module adjoins. The ball race module is followed by at least one middle module, downstream of which a ball race module and finally a delivery module are again arranged. The length of the washing drum is determined by the number of middle modules. It is further conceivable for the washing drum to have a ball race module only at one of the two ends or for an additional ball race module also to be fitted between two middle modules. In a particularly advantageous manner, the outer surface of the middle modules is perforated in part or completely. In a preferred embodiment, the outer surface has perforations in the washing region while the outer surface is non-perforated in the transport region.

In order to retain the textiles during the reversing movement of the washing drum during the washing operation inside a middle module, the middle modules have on their base areas a separating wall which comprises a through-opening in the transport region in order to convey the textiles onwards after a finished washing operation. Depending on whether the middle module does or does not separate two functional chambers - for example, pre-wash and main wash - from each other, the separating wall is constructed with or without holes .

There are a number of possibilities with regard to the connection of the individual modules to each other. In a particularly advantageous manner, the individual modules are connected to each other via weld seams or weld points. It is further conceivable to adhesively bond the modules to each other or to connect them to each other via clip devices, that is to say, by bracing. In a further advantageous manner, the individual modules may have a flange in the connection region thereof so that they can be screwed to each other.

In order to "pause" the textiles during the reversing partial rotations which the washing drum carries out during the washing operation up to a specific extent so that they are thoroughly agitated, the modules have carriers which are preferably fitted in the form of a rib radially to the inner drum wall.

With regard to the axial conveying of the textiles from the intake module through the washing drum as far as the delivery module, the individual modules have paddles which convey the textiles in an axial direction during a rotation of the washing drum through 360 degrees.

There are now different possibilities of configuring and developing the teaching of the present invention in an advantageous manner. To this end, on the one hand, reference may be made to the patent claims dependent on patent claim 1 and, on the other hand, to the following explanation of a preferred embodiment of the invention with reference to the drawings. In connection with the explanation of the preferred embodiment of the invention with reference to the drawings, generally preferred configurations and developments of the teaching are also explained. In the drawings:

Figure 1 is an exploded, schematic view of the modular construction in principle of a washing drum,

Figure 2 is a schematic view of the washing drum in the assembled state,

Figure 3 is a schematic view of the middle module from different viewing directions with a non-perforated separating wall, and

Figure 4 is a schematic view of the middle module from different viewing angles with a perforated separating wall.

Figure 1 is a simplified schematic view of the individual portions of the washing drum 1 which is surrounded by an outer drum which is not illustrated. The washing drum 1 has at one end thereof an intake module 3 for providing with the textiles to be washed and at the other end thereof a delivery module 5 from which the washed textiles are removed. In the operating state, the washing drum 1 is supported on the ball race modules 4 and can be rotated in both directions by means of drives which are not illustrated and which act on the ball ring modules 4. The central region of the washing drum 1 is formed by the middle modules 2 which subdivide the washing drum 1 into functional chambers. In this instance, for example, there may be provided chambers for the pre-wash, main wash, for rinsing or where applicable for starching the textiles. In the embodiment selected here, the central region is formed by four middle modules 2, wherein the number of middle modules 2 can be freely varied. The number of middle modules 2 decisively determines the cycle time and the capacity of the batch type washing system.

In Figure 2, the individual modules (2-5) are connected to each other - for example, via weld seams, by adhesive bonding, via clips or a flange connection - so that they form the washing drum 1.

In the middle modules shown in Figure 3, the separating wall 7 is not perforated so that the modules 2 are suitable, for example, for separating the pre-washing chamber from the main washing chamber. Furthermore, it can be seen that the outer face 6 is perforated in the washing region and is non-perforated in the transport region. In the transport region, there is further formed the through-opening 8 through which the textiles are conveyed in an axial direction by means of the paddles 10. In order to "pause" the textiles during the reversing movement of the washing drum 1 during a washing operation up to a specific extent so that they are thoroughly agitated, carriers 9 are provided.

If one of the chambers, for example, for rinsing, is supposed to be assembled from a plurality of middle modules 2 in order thus to achieve the desired length, the middle modules 2 from Figure 4 are used. In this instance, the separating wall 7 is constructed with holes so that washing water or washing emulsion can pour through the entire chamber and does not remain in the individual middle modules 2. Otherwise, the middle module 2 shown in Figure 4 corresponds in terms of the embodiment thereof to the middle modules 2 shown in Figure 3.

With regard to additional features which cannot be seen in the Figures, reference may be made to the general portion of the description for the avoidance of repetition.

Finally, it should be noted that the embodiment explained above serves merely to explain the claimed teaching by way of example, but does not limit it to the embodiment.

List of reference numerals 1 Washing drum 2 Middle module 3 Intake module 4 Ball race module 5 Delivery module 6 Outer surface 7 Separating wall 8 Through-opening 9 Carrier 10 Paddle

Claims

Apparatus for washing fabrics, in particular batch-type washing plants, having a washing drum (1), which is divided into individual chambers, wherein the washing drum is at least partially surrounded by an outer drum and wherein the washing drum is made up of prefabricated modules (2, 3) 4, 5), which are connected to each other, wherein the washing drum (1) comprises an delivery module (3), at least one center module (2) and one delivery module (5), characterized in that the at least one center module (2) has a partition (7) on its base surface, said partition comprising a passage opening (8), in that when only one center module (2) is provided, a bearing ring module (4) is disposed between the delivery module (3) and the middle module (2) and between the center module (2) and the delivery module (5), or when several center modules (2) are provided, a bearing ring module (4) is arranged between the delivery module (3) and the subsequent center module (2), as well as between the center module (2). 2) positioned before the delivery module (5) ), and the dispensing module (5), and knowing that the washer (1) is pivotally mounted on the bearing wrench module (4) and driven via the bearing wrench module (4), in particular when there are several center modules (2), provided with an additional bearing ring module (4).

Apparatus according to claim 1, characterized in that the surrounding surface of the middle modules (2) is partially or completely perforated.

Apparatus according to claim 1 or 2, characterized in that the partition (7) is formed with or without holes.

Apparatus according to one of claims 1 to 3, characterized in that the modules (2, 3, 4, 5) are connected to each other via welding seams or welding points.

Apparatus according to one of claims 1 to 3, characterized in that the modules (2, 3, 4, 5) are glued together.

Apparatus according to one of claims 1 to 3, characterized in that the modules (2, 3, 4, 5) are connected to each other via clips - by clamping.

Apparatus according to one of claims 1 to 3, characterized in that the modules (2, 3, 4, 5) are connected to each other via a flange.

Apparatus according to one of Claims 1 to 7, characterized in that the modules (2, 3, 4, 5) have carriers (9) for guiding the fabrics with the rotation of the drum.

9th

Apparatus according to one of claims 1 to 8, characterized in that the modules (2, 3, 4, 5) have vanes (10) for transporting the fabrics through the batch type washing system.