EP1625799B1 - Arrangement for the manufacture of at least one filter rod - Google Patents

Abstract

The arrangement has a filter material course preparation mechanism (20), in particular filter material track transfer device, and a filtering facility (40). A filter material overpass mechanism (30) is provided between the filter mechanism and the filter device. The filter material overpass mechanism conveys the filter material to a strip. A returning mechanism (31, 32) is provided for the filter material strip.

Description

The invention relates to an arrangement for producing at least one filter strand for products of the tobacco processing industry with a filter material web processing device, in particular filter tow strip processing device, and a filter strand forming device. Moreover, the invention relates to the use of a filter material web transmission device.

In the documents DE 42 09 789 A1 and DE 43 08 093 A1 In each case a machine for processing filter tow material for the production of filter rods in the strand method is described. With these known devices filter rods are produced in the two-strand process. In this case, filter tow strips, for example made of cellulose acetate threads, are removed from a bale, prepared by stretching and treating with softeners, for example triacetin, and in one desired shape and consistency for further processing directly submitted to a filter strand unit, which produces a filter strand from the processed filter tow by wrapping with a wrapping material strip. The filter strand is then cut into filter rods for cigarettes or other rod-shaped smoking articles.

According to the prior art, the filter tow treatment device is directly coupled to the filter strand unit. In other words, the processed filter tow is directly, i. without intermediate conveyor, transported by the treatment device in the filter strand unit.

In DE-42 09 606 a device for treating at least one strip of filament filter material with filter material is described, the device consisting of two assemblies, a filter material strip processing device and a processing device for producing coated filter rods. Here, the processing unit and the processing unit are arranged linearly one behind the other in the conveying direction of the filter material strip.

In GB-A-2 265 298 discloses a machine for processing a filter tempstrip, wherein the filter tow after its preparation is transferred directly and without changing its conveying direction in a Filterstrangeinheit.

Also revealed US-A-3 636 825 a feeding device for transporting a filter material web to a compression hopper of a filter manufacturing machine, wherein a tensioning roller is provided. The tension roller is convex in the manner of a spindle, so that the inner diameter is greater than the outer diameter the tension roller.

Further disclosed US-A-3,390,039 a device for producing filter strands, wherein a strip of filter material is treated with additives and is conveyed via a conveyor belt to a hopper of a strand forming device.

Moreover, shows EP-A-1 694 146 (equivalent to WO-A-2005/058079 such as DE-A-103 54 924 ) generally a device for processing filter tow material.

Proven processing equipment is built and sold under the designation AF 2, AF 3 and AF 4 by the patent applicant. Filter strand machines of the type described by the patent applicant are known under the name KDF 2, KDF 3, and KDF 4.

It is also in DE 43 00 841 A1 discloses an apparatus for making a filter strand, wherein the towballen is disposed away from the filter conditioning machine and strand making machine. The strip of filter material is withdrawn from the towbale and fed via a pneumatic conveying system of the processing machine.

Based on this prior art, it is an object of the present invention to provide a treatment and strand formation arrangement for filter tow, in which it should be possible to easily adapt the treatment and strand formation arrangement to spatial conditions.

This object is achieved by an arrangement for producing at least one filter strand for products of the tobacco-processing industry with a filter material web preparation device, in particular a filter tow strip processing device, and a filter strand forming device, which is provided by the filter material web transfer device between the filter material web processing device and the filter strand forming device, wherein the filter material web transfer device comprises a deflection device for deflecting the filter material strip, and wherein the filter material web processing device and the filter strand forming device arranged in an L-shaped or U-shaped are.

By means of this proposed measure according to the invention, the filter material processing device and the filter strand forming device can be set up separately from one another, wherein the processed filter material strip is guided to the filter strand forming device by means of the filter material web transfer device. As a result, the filter material web processing device and the filter strand forming device are connected via the interposed filter material web transfer device as a kind of intermediate conveyor. Thus, the installation possibilities of a filter manufacturing machine are significantly increased, since the filter material strip is conveyed after leaving the Towaufbereiters in a kind of intermediate route to the stranding machine. Compared to the direct connection or coupling of a filter material web processing device and a filter strand forming device, the two devices are decoupled according to the invention, wherein the two devices are arranged spatially offset from one another or can be. Due to the flexible spatial arrangement of the filter material web processing device and the filter strand forming device, the given space or space conditions are optimally utilized, since numerous predetermined installation variants for the machine combination are possible by the subject invention.

In the arrangement, the filter material web transfer device has a deflection device for deflecting the filter material strip. It is thus achieved that the filter material web processing device and the filter strand forming device can be arranged at an angle to each other, so that the conveying of the filter material strip in the processing device and in the strand forming device is performed in two different vertical planes and the planes intersect at a predetermined angle.

For this purpose, it is expediently provided that the filter material web transfer device has the conveying of the filter material strip supportive transport, so that the processed filter material strip is reliably guided from Towaufbereiter to the strand machine.

An exact deflection and conveying a filter material strip from the processing device in the conveying plane of the strand forming device is achieved when the filter material transfer device and / or the deflection device have at least one drive.

In particular, at least one roller is provided as a means of transport and / or deflection. In addition, it is possible that a plurality of rollers are provided as a means of transport and / or deflection, so that the or recycled filter material strips are reliably conveyed from Towaufbereiter to the stranding machine.

A safe guidance of the recycled filter material webs or in the transfer device according to the invention is achieved in that the at least one roller groove-shaped, in particular V-shaped or U-shaped, is formed. This prevents a conveyed material strip from slipping off a transport roller.

A preferred development is characterized in that the filter material web processing device is designed to process a plurality of filter material strips. As a result, the performance of an arrangement according to the invention is significantly increased, since several, in particular two, filter material strips are processed in parallel next to one another and at the same time.

Furthermore, in particular the filter strand forming device is designed to form a plurality of filter strands, so that, for example, in the double-strand process, one strand machine produces two filter strands.

Moreover, it is advantageous if the filter material web processing device and the filter strand forming device are arranged spatially offset from one another. In particular, a decoupling of the two devices is thereby achieved. Thus, the filter material web processing device and the filter strand forming device can be arranged differently in a space relative to the conveying direction of the filter material strip or strips.

Preferably, the filter material web processing device and the filter strand forming device are arranged at a predetermined angle, in particular 90 ° or 180 ° to each other. This results in an L-shaped or U-shaped arrangement of the two devices.

Advantageously, the filter material web processing device and the filter strand forming device are also arranged one above the other and / or next to one another, whereby the spatial conditions can be optimally utilized.

Furthermore, the object is achieved by the use of a filter material web transfer device with a deflection device for deflecting a filter material strip in an arrangement according to the invention described above. Advantageous embodiments of the filter material web transmission device will become apparent from the foregoing, so that reference is expressly made to the above embodiments.

Fig. 1a, Fig.1b

schematisch jeweils eine Draufsicht auf eine Anordnung einer Aufbereitungseinheit und einer Strangeinheit zur Herstellung eines bzw. zweier Filterstränge gemäß dem Stand der Technik;

Fig. 2

eine Draufsicht auf eine erfindungsgemäße L-förmige Anordnung einer Aufbereitungseinheit und einer Strangeinheit;

Fig. 3

eine erfindungsgemäße L-förmige Anordnung einer Aufbereitungseinheit und Strangeinheit zur Herstellung von zwei Filtersträngen im Doppelstrangverfahren;

Fig. 4a, Fig. 4b

schematisch jeweils Ausgestaltungen einer Anordnung von Transportrollen in einer Überführungseinrichtung;

Fig.5

eine Draufsicht auf eine U-förmige Anordnung einer Aufbereitungseinheit und Strangeinheit für die Herstellung eines Filterstrangs und

Fig. 6

eine Draufsicht auf eine U-förmige Anordnung zur Herstellung von zwei Filtersträngen Im Doppelstrangverfahren.

The invention will now be described by way of example without limiting the general inventive idea by means of exemplary embodiments with reference to the drawings, to which reference is expressly made, moreover, with regard to all details of the invention which are not explained in greater detail in the text. Show it:

Fig. 1a, Fig.1b

each schematically a plan view of an arrangement of a processing unit and a strand unit for producing one or two filter strands according to the prior art;

Fig. 2

a plan view of an inventive L-shaped arrangement of a processing unit and a strand unit;

Fig. 3

an inventive L-shaped arrangement of a treatment unit and strand unit for the production of two filter strands in the double-strand process;

Fig. 4a, Fig. 4b

schematically each embodiments of an arrangement of transport rollers in a transfer device;

Figure 5

a plan view of a U-shaped arrangement of a processing unit and strand unit for the production of a filter strand and

Fig. 6

a plan view of a U-shaped arrangement for the production of two filter strands in the double-strand process.

In the following figures, the same or similar elements or corresponding parts are provided with the same Bezugszlffern, so that apart from a corresponding renewed idea.

In the FIGS. 1a and 1b In a schematic plan view, an arrangement of a treatment unit 20 and a strand unit 40 for producing a filter strand or two filter strands according to the prior art are shown.

At the in Fig. 1a illustrated embodiment is deducted from a filter towballs 10 a filter tow and conveyed to a Aufbereitungseinhelt 20. In the processing unit 20, the filter tow is stretched after removal from the filter towballs 10, spread and sprayed with droplets of plasticizers, such as Triacetln, so that the surfaces of the threads or fibers of the material strip are dissolved so that they stick together. The thus prepared strip of material is subsequently conveyed to a strand unit 40 with a so-called inlet funnel 41 and a downstream format set and transferred.

In the strand unit 40, the processed filter tow strip is enveloped by means of a wrapping material strip and made into a filter strand, which is then cut into filter rods for cigarettes or other tobacco products.

At the in Fig. 1b In the embodiment shown, the conditioning unit 20 and the strand unit 40 are designed to produce double-stranded sections. In this case, two filter towballs 10 each deduct one strip of filter material and each separately processed in the Aufbereltungseinhelt 20 and passed to the double-track strand unit 40.

At the in Fig. 1a and 1b As shown arrangements, the processing unit 20 and the strand unit 40 are coupled directly to each other, so that the processed filter material strip is passed directly between conveying device free from the processing unit 20 to the strand unit 40. The processing and stranding processes are in the documents DE 42 09 606 A1 . DE 43 08 093 A1 and DE 42 09 789 A1 described in detail, so that reference is expressly made to the disclosure of these documents. The disclosure of said documents is expressly incorporated in the disclosure of the present patent application.

In Fig. 2 an inventive L-shaped arrangement of a processing unit 20 and a strand unit 40 is shown, wherein the processing unit 20 and the strand unit 40 are arranged at right angles to each other. In order to supply the filter material strip, which has been processed in the processing unit 20, to the strand unit 40, a handling unit 30 with a deflection roller 31 is provided between the processing unit 20 and the strand unit 40.

By means of the deflection unit 30 according to the invention, a filter material web transfer device is formed between the processing unit 20 and the strand unit 40, so that in this way the processing unit 20 and the string unit 40 can be placed independently. In particular, the space available in a room or a factory is better utilized by an L-shaped arrangement of the processing unit 20 and the string unit 40. Overall, numerous Aufstellvarianten arise for a desired combination of such a machine. By means of the Umlankeinheit 30 decoupling of the processing unit 20 and the strand unit 40 is achieved because the processing unit 20 and the string unit 40 can be placed spatially distant from each other.

At the in Fig. 2 schematically shown arrangement is a filter strand manufactures.

In Fig. 3 is also an L-shaped arrangement of a processing unit 20 and a strand unit 40 for the production of filter strands in the double-strand process shown, between the rechtwinkellgen arrangement of the processing unit 20 and the strand unit 40, the Umlenkeinhelt 30 is arranged. The deflection unit 30 has, in addition to the deflection roller 31 for both filter material strips via a respective guide roller 32 for each a Filtermaterialstrolfen. Purpose of the guide rollers 32 is the leading apart of the two Towstrelfen to supply them approximately at right angles to each inlet funnel 41. The guide rollers 32 are arranged so that both tow strips have the same length.

In Fig. 4a schematically is a side view of the deflection unit 30 with the arrangement of the rollers 31, 32 shown, as shown in Fig. 3 is shown. The deflection roller 31 is designed as a double roller, so that the two conveyed filter material strips are guided in a groove of the V-shaped roller 31. Subsequently, the two Filter material strip separated over the two guide rollers 32 to each of the associated inlet funnel 41. The guide roller 31 and the guide roller 32 are each rotated by a single drive. In an alternative embodiment, a toothed belt or the like is provided as drive for the deflection roller 31 and the guide rollers 32.

In Fig. 4b an alternative arrangement of the guide roller 31 and the guide rollers 32 is shown, wherein the guide roller 31 and the guide rollers 32 are arranged in the transport direction of the two filter material strips. This results in an inclined arrangement of the rollers. In order to ensure a secure guidance of the filter material strips, both the deflection roller 31 and the guide rollers 32 are formed with a groove-shaped recessed peripheral surface.

In the embodiments in Fig. 5 and Fig. 6 the processing unit 20 and the strand unit 40 for producing a filter strand or two filter strands together with the deflection unit 30 are arranged in a U-shape. This results in a juxtaposition of Aufbufftungseinhelt and the string unit 40th

In a corresponding manner, according to the in Fig. 6 illustrated embodiment, the conditioning unit 20 and the strand unit 40 over corner and offset from each other, so that according to this embodiment, two filter strands are produced.

Of course, it is possible within the scope of the invention to provide further possibilities of setting up a conditioning unit 20 and a strand unit 40 together with a deflection unit 30. For example, it is conceivable within the scope of the invention the processing unit 20 and the strand unit 40 are arranged one above the other so that the filter material strip or strips are guided downwards or upwards via the deflection unit 30.

LIST OF REFERENCE NUMBERS

10

Filtertowballen

20

conditioning unit

30

Return unit

31

idler pulley

32

leadership

40

train unit

41

feed hopper

Claims (10)

1. Arrangement for manufacturing at least one filter rope for products of the tobacco-processing industry comprising a filter material web processing device (20), in particular a filter tow strip processing device, and a filter rope forming device (40), wherein a filter material web transfer device (30) is provided between the filter material web processing device (20) and the filter rope forming device (40), wherein the filter material web transfer device (30) comprises a deflection device (31, 32) for deflecting the filter material strip, characterized in that the filter material web processing device (20) and the filter rope forming device (40) are arranged in an L-shaped or U-shaped manner.
2. Arrangement according to claim 1, characterized in that the filter material web transfer device (30) comprises transport means that assist the conveying of the filter material strip.
3. Arrangement according to claim 1 or 2, characterized in that the filter material web transfer device (30) and/or the deflection device (31, 32) comprise at least one drive.
4. Arrangement according to one of claims 1 to 3, characterized in that as transport means and/or deflection device at least one roller (31, 32) is provided.
5. Arrangement according to claim 4, characterized in that the at least one roller (31, 32) is of a groove-shaped, in particular V-shaped or U-shaped design.
6. Arrangement according to one or more of claims 1 to 5, characterized in that the filter material web processing device (20) is designed for the processing of a plurality of filter material strips.
7. Arrangement according to one or more of claims 1 to 5, characterized in that the filter rope forming device (40) is designed for the formation of a plurality of filter ropes.
8. Arrangement according to one or more of claims 1 to 7, characterized in that the filter material web processing device (20) and the filter rope forming device (40) are disposed spatially offset relative to one another.
9. Arrangement according to one or more of claims 1 to 8, characterized in that the filter processing device (20) and the filter rope forming device (40) are disposed one above the other or side by side.
10. Use of a filter material web transfer device (30) comprising a deflection device (31, 32) for deflecting a filter material strip in an arrangement according to one or more of claims 1 to 9.

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