DE102011083029A1 - Rotary conveying device and method for conveying articles of the tobacco processing industry - Google Patents

Abstract

Rotary conveyor (100, 1100) and method for conveying articles (400, 410, 420) of the tobacco processing industry, the rotary conveyor (100, 1100) comprising a body (110, 1110) with a substantially cylindrical jacket (120, 1120), wherein the jacket (120, 1120) has a plurality of vacuum pockets (121, 1121) which can be subjected to a vacuum for sucking in the articles 400, 410, 420), characterized in that a film (200 , 210, 20, 230, 1200, 1210, 1220) is detachably fastened with fastening means (310, 1310), the film (200, 210, 20, 230, 1200, 1210, 1220) being formed on the jacket ( 120, 1120) opposite side to promote the articles (400, 410, 420)

Description

The invention relates to a rotary conveying device for conveying articles of the tobacco processing industry, comprising a body with a substantially cylindrical shell, wherein the jacket has a plurality of vacuum pockets, which are acted upon by a negative pressure for sucking the articles.

The invention further relates to a film set for a rotary conveyor of the type mentioned.

The invention further relates to a method for conveying articles of the tobacco processing industry, comprising the steps of: providing a rotary conveying device for a machine of the tobacco processing industry, comprising a body having a substantially cylindrical shell, the jacket having a plurality of vacuum pockets; Pressurizing the vacuum bags with a vacuum for sucking the article.

The invention further relates to a method for adapting a rotary conveying device to a conveying of articles of the tobacco processing industry with different format.

Rotary conveying devices of the type mentioned can be, for example, suction rollers, conveyor drums or other, essentially cylindrical conveyor devices which convey articles of the tobacco-processing industry in a direction of rotation. Rotary conveying devices of the type mentioned are used in drum machines of the tobacco processing industry, in particular in Filteransetzmaschinen and Multifilterherstellmaschinen.

Articles of the tobacco processing industry to be conveyed may be, for example, rod-shaped articles such as tobacco sticks, filter rods or cigarettes with or without filters, or sheet-like articles such as filter paper sections, filter paper webs, tipping paper sections or tipping paper webs.

Rotary conveying devices for conveying articles of the tobacco processing industry are known. The EP 1 447 016 A1 discloses a conveyor drum for articles of the tobacco processing industry with a lifting means with a predetermined longitudinal axial stroke for longitudinally aligned with each other and conveyed in at least one row queraxial the conveyor drum articles. As a lifting means at least one magnetic lifting device is provided. The WO 2010/012420 A1 relates to a conveyor drum of the tobacco processing industry with recordings for articles of the tobacco processing industry, in which various types of recordings are provided.

Rotary conveyor of the type mentioned initially have a substantially cylindrical shape with a cylindrical shell, which surrounds a, usually cylindrical, body. In the jacket a plurality of vacuum pockets are arranged, which are connected to a vacuum source, so that the articles to be conveyed, which are located directly on the surface of the jacket, sucked by the negative pressure formed in the vacuum pockets to the jacket and so with the jacket can be promoted. To promote rotary conveyors of the type mentioned are usually driven and are offset by the drive in a rotational movement to promote the articles in a rotational direction.

In the production of, for example, cigarettes with different formats, in particular different diameters and / or different lengths, the corresponding format-relevant components of a machine of a tobacco processing industry, in particular rotary conveyors of the type mentioned, to adapt to a changed format, which often with great effort and resulting long downtime and high costs.

It is therefore an object of the present invention to provide a rotary conveyor, a foil set and methods of the type mentioned, which facilitate the adaptation of a rotary conveyor or a machine of the tobacco processing industry on articles of different formats. It is also an object of the present invention to provide a rotary conveyor, a foil set and methods of the type mentioned, which facilitate the maintenance and repair, in particular the cleaning, of conveyors in machines of the tobacco processing industry.

This object is achieved by a rotary conveying device of the type mentioned, which is characterized in that on the jacket a film with fastening means is releasably secured, wherein the film is formed on its side facing away from the jacket, the article, in particular articles of a first format, to promote.

The invention is based on the finding that a considerable facilitation of the adaptation of a machine of the tobacco processing industry to the processing and conveying of articles of different formats can be achieved by requiring a more complete exchange Rotary conveyors, which are adapted for the promotion of articles of a first format, is omitted by other rotary conveying devices, which are adapted to the promotion of articles of a second format. The invention is further based on the finding that the adaptation of a rotary conveying device to a specific format to be conveyed article can be achieved that a releasably mounted on the mantle surface of the rotary conveyor device film is provided to promote the article.

Under a film is a web, sheet, or plate-shaped, preferably flexible, element to understand. For example, the film may be formed as a thin sheet having a thickness of less than 1 mm. Particularly preferred is a thickness of the film between 0.1-0.8 mm.

The film is inventively designed to promote on its side facing away from the coat the articles of the tobacco processing industry. For this purpose, the film preferably has a substantially smooth, cylindrical surface on its side facing away from the jacket, d. H. a surface without outwardly projecting cut edges or the like.

The film is releasably secured to the shell with fasteners, d. H. the film can be removed from the rotary conveyor and replaced with another film. This other film can then also be releasably secured back on the jacket and is also designed to promote on its side facing away from the jacket articles of the tobacco processing industry; however, unlike the first film, such a second film is preferably adapted to articles of a different format.

In this way it is possible to adapt the rotary conveyor to different formats of articles to be conveyed without having to replace the body and the jacket of the rotary conveyor. The releasable attachment of the film on the jacket makes it possible to easily and repeatably replace the film with another film by loosening the fastening means.

In addition to an exchange of the film to another format of articles to be conveyed, the invention also allows easier maintenance or repair, in particular cleaning the rotary conveyor: By loosening the attachment of the film on the jacket and removing the film from the rotary conveyor, the film, for example of glue residues, cleaned or otherwise serviced if necessary or replaced with increasing and critical wear or damage by another similar film. In addition, the vacuum pockets in the drum shell can be cleaned more easily.

The replacement of only the film instead of the entire rotary conveyor allows on the one hand faster format change or maintenance or repair and thus leads to lower downtime and on the other hand, a reduction in costs, since the film requires a significantly lower material usage than a rotary conveyor.

Another advantage of the rotary conveyor according to the invention results from the fact that as a replacement or replacement part only films must be kept, which are significantly more space-saving in storage than rotary conveyors as a whole.

Another advantage of the rotary conveyor device according to the invention is that the rotary conveyor device according to the invention can also interact with other components of a machine of the tobacco processing industry as known from the prior art rotary conveyor devices. Therefore, it is possible to exchange in existing machines of the tobacco processing industry rotary conveyors according to the prior art by inventive rotary conveyors and in this way to be able to use the advantages of the rotary conveyors according to the invention in already existing machines of the tobacco processing industry.

In a preferred embodiment of the invention, the rotary conveying device is characterized in that the film has vacuum passages which are arranged in fluid communication with the vacuum pockets, so that the articles can be sucked onto the film on the side of the film facing away from the jacket ,

The vacuum pockets preferably have dimensions that make them suitable for a variety of sizes of articles to be conveyed. In particular, an embodiment of the vacuum pockets with a rectangular cross section on the mantle surface is preferred, wherein the vacuum pockets are preferably arranged transversely and spaced from each other in the circumferential direction of the shell.

The vacuum passages of the film may be formed, for example, as holes arranged in series or as a hole pattern, as slots or recesses in the film. In series arranged holes or slots are preferably, in particular for the promotion of rod-shaped articles, arranged transaxially on the film.

Preferably, the vacuum passages of the film are arranged so that they are on the one hand connected to the vacuum pockets of the jacket, so that a built-in pockets vacuum acts through the vacuum passages of the film on the articles to be conveyed and can suck them to the film. In addition, the vacuum passages of the film are preferably arranged such that, on the other hand, they are adapted to a specific format of articles, for example rod-shaped or sheet-shaped articles and their format-dependent geometries and dimensions.

Preferably, the film along the circumference of the rotary conveyor device comprises areas with Unterdruckdurchlässen, on each of which an article can be sucked and conveyed, as to alternately arranged areas without vacuum passages on which no articles are sucked and conveyed, so that the articles to be conveyed on the Foil are circumferentially spaced.

A further preferred embodiment of the rotary conveying device is characterized by positioning means which are arranged and adapted to fix the film on the jacket in a predetermined position, wherein the positioning means preferably one or more pins, one or more guide rails, one or more terminal strips and / or a or multiple clamping bars.

The provision of positioning means has the advantage of ensuring that the film is arranged in a predetermined position on the jacket, so that the articles conveyed on the film can be picked up by other conveying devices without disturbing the conveying process and can in turn be delivered to other conveying devices.

The positioning means may be formed on the jacket and / or on the film. For example, the film may have positioning openings into which positioning means can engage. The positioning means are preferably distributed along the circumference of the shell.

In a preferred embodiment, the fastening means comprise a clamping disc and / or a groove. These fastening means may preferably be arranged on the end faces of a rotary conveyor. The fastening means can be designed as a force, shape or frictional locking fastener.

In a preferred embodiment, the positioning means are identical to the attachment means, so that the film is also positioned simultaneously with the attachment to the shell.

In a preferred embodiment, the film comprises or consists of non-magnetizable metal. In particular, the film may also comprise or consist of cemented carbide or zirconium, in particular zirconium (IV) oxide (ZrO ₂ ). Such a design of the film has the advantage of a very high wear resistance.

In a preferred embodiment, the film comprises or consists of magnetizable metal. Furthermore, it is preferred that the fastening means comprise one or more magnets, preferably permanent magnets.

In particular, a combination of a film with or made of magnetizable metal and magnetic fastening means has the advantage that the resulting attachment by means of magnetic force on the one hand during operation of the rotary conveyor very reliable and on the other hand is easy to solve. Depending on the design, the release of the attachment can be done without (special) tool. The magnetic attachment means are preferably arranged transversely between the vacuum pockets and spaced along the circumferential direction of the shell. The magnetic fastening means may also be arranged annularly along the circumferential direction of the jacket.

A preferred embodiment is characterized in that the film comprises at least two film segments, wherein preferably each of the film segments is releasably secured to the jacket.

The film may consist of or comprise two, three or more segments. This can in particular facilitate the assembly and disassembly of the film. Preferably, the film is divided into segments along substantially cross-axial dividing lines. Further preferably, each of the segments has an extent across the entire width of the film and an extent in the circumferential direction that corresponds to a portion of the total extent of the film in the circumferential direction. In particular, it is preferable that a plurality of segments are formed the same.

In a further preferred embodiment, each of the film segments can be fixed by means of the positioning means in a predetermined position on the jacket. In this way it can be ensured that each film element is aligned in the desired position. Preferably, the positioning means comprise at least one positioning element for each of the foil segments.

In a preferred embodiment, the rotary conveying device is characterized in that the articles are formed in a sheet shape and the rotary conveying device is designed as a suction roll, wherein preferably the vacuum passages are arranged in the form of a hole pattern, which is adapted to a format of the sheet-shaped article.

The advantages of the rotary conveyor device according to the invention and its further developments are particularly effective in a design of the rotary conveyor as a suction roller. Suction rolls are preferably used to promote sheet or sheet-shaped articles of the tobacco processing industry, in particular filter cover paper webs or filter cover paper strips. It is particularly preferred that the vacuum passages of the film on the format, that is, the dimensions of the sheet-shaped article to be conveyed are tuned. For example, the vacuum passages may be arranged as a plurality of holes or holes forming a hole image. It is preferred that between the vacuum passages on which the sheet-like articles to be conveyed are arranged, regions are formed without vacuum passages of the film on which no sheet-like articles are conveyed, so that the conveyed sheet-like articles are circumferentially spaced from each other.

In an alternative embodiment, the rotary conveyor device is characterized in that the articles are rod-shaped and the rotary conveyor is designed as a conveyor drum, wherein preferably the film has receptacles which are adapted to receive the rod-shaped article on a side facing away from the jacket.

The advantages of the rotary conveying devices according to the invention and their further developments are particularly evident in the design of the rotary conveying device as a conveying drum, which promotes rod-shaped articles, such as tobacco sticks, filter rods or cigarettes.

To promote the rod-shaped article, the film preferably has receptacles for receiving the rod-shaped articles on a side facing away from the jacket, which are formed as outwardly open troughs or recesses in the film.

The receptacles can be designed differently: receptacles formed as depressions can be applied on the side of the film facing away from the jacket, for example by welding or gluing. The troughs can also be formed by forming or embossing in the film.

In an alternative embodiment, the receptacles are recesses in the film, wherein the recesses are preferably formed rectangular. Such recesses may for example be punched out of the film. It is particularly preferred if the aligned transversely to the direction of rotation edges of the recesses are chamfered or bevelled. This has the advantage that the articles to be conveyed can be taken up particularly gently in the recesses. In particular, when the articles are tobacco sticks or cigarettes, this is advantageous so as not to adversely affect the quality of the articles.

In a further alternative embodiment of the present invention, the foil, which preferably consists essentially of sheet metal, is formed as a closed ring. In this case, the closed ring preferably has an inner diameter which is smaller than the outer diameter of the shell, preferably about 0.25 to about 0.75 mm smaller, more preferably about 0.5 mm smaller. By means of these two aforementioned variants of this embodiment, according to the invention, the attachment and the change of the film are rendered even simpler and less expensive. The fact that the inner circumference of the ring is a certain degree smaller than the circumference of the drum body results in the assembly of such a ring formed as a film, an expansion in the wells. As a result, a bias voltage is generated which advantageously fixes the tray plate formed in this way on the drum body. Also in this embodiment, the positioning of the sheets thus formed as a sheet can be made by means of pins.

In a further variant of the above preferred embodiment of the present invention, the closed ring is chamfered on at least one of its edges facing the respective end face, preferably with a chamfer facing the shell of the drum body. In this way, it is easily possible to push or slide the formed as a closed ring metal foil on the drum body.

In a further preferred embodiment of the present invention, the jacket is chamfered on at least one peripheral edge facing the respective end face and its circumference. In this way, the film according to the invention, in particular if it is designed as a closed, preferably made of sheet metal, ring can be easily pressed or pushed onto the drum body.

In a further preferred embodiment of the invention, the film is formed as a sheet, wherein on the side facing away from the jacket the film designed as troughs recordings are provided, whose open sides are remote from the jacket, wherein it is at the troughs in radially projecting from the film webs milled depressions. The webs may preferably be formed by etching a sheet metal blank used to produce the film. In this case, preferably, a sheet metal blank outside the areas provided for the webs is etched down from a base thickness onto the finally remaining thickness of the metal sheet outside the areas provided for the webs. For example, for the sheet metal blank, an original sheet thickness of 3 mm can be used, which is etched down outside the bars to an etched sheet thickness of 0.15 mm. The webs therefore remain integrally connected outside the etched area with the sheet metal ring and can then be provided by a milling operation with troughs according to the invention. One of the advantages of this embodiment of the etched out of a sheet metal blank webs is that in this way no frontal sealing of the troughs is required against secondary air, as already by the aforementioned forming the webs by etching a seal against secondary air is generated.

A further aspect of the invention is a film set for a rotary conveying device according to one of the preceding claims, comprising at least a first and a second film for a rotary conveying device according to one of the preceding claims, wherein the at least first and second film are formed on a shell of a body of a Rotary conveying device according to one of the preceding claims to be releasably secured and promote on its side facing away from the jacket articles of the tobacco processing industry, and wherein the first film is adapted to promote articles of a first format and the second film is formed, a second article, from first different format to promote.

Another aspect of the invention is a method for conveying articles of the tobacco processing industry, comprising the steps of: providing a rotary conveyor for a machine of the tobacco processing industry, comprising a body having a substantially cylindrical shell, the shell having a plurality of vacuum pockets; Pressurizing the vacuum bags with a vacuum for sucking the articles; characterized by the steps of: providing a film releasably secured to the jacket; Conveying the articles on a side of the film facing away from the jacket.

A further aspect of the invention is a method for adapting a rotary conveyor to conveying articles of the tobacco processing industry of different format, comprising the steps of: providing a rotary conveyor comprising a body having a substantially cylindrical shell and a first, releasably secured to the shell Foil which is designed to promote on its side facing away from the jacket articles of a first format; Removing the first film; Providing a second film which is adapted to convey on its side facing away from the jacket articles of a second format; releasably securing the second foil to the shell.

For the specific embodiments, variants and advantages of these further aspects of the invention, reference is made to the preceding description of the corresponding features of the rotary conveying device.

Preferred embodiments of the invention will be described by way of example with reference to the accompanying figures. Show it:

1 a three-dimensional view of a first embodiment of a rotary device according to the invention;

2 a side view of the rotary conveyor according to 1 ;

3 a cross section through the rotary conveyor according to 1 ;

4 : an enlarged section 3 ;

5 FIG. 4: an enlarged section of a cross section through the rotary conveyor according to FIG 1 along another cutting plane;

6 3 shows a three-dimensional view of a part of the rotary conveyor according to FIG 1 with other slides;

7 a cross section through the rotary conveyor according to 6 ;

8th : an enlarged section 7 ;

9 a three-dimensional view of the film of the rotary conveyor according to 6 ;

10 FIG. 1 shows a further embodiment of a film for a rotary conveying device according to FIG 1 or 6 ;

11 a three-dimensional view of a further embodiment of a rotary conveying device according to the invention;

12 a three-dimensional view of the rotary conveyor according to 11 with two removed foil segments;

13 : the rotary conveyor according to 11 in cross-section;

14 a film segment of the conveyor according to 11 ;

15 an alternative film segment for a conveyor according to 11 ; and

16 : a film without segmental division for a rotary conveyor according to 11 ,

The in the 1 to 10 illustrated embodiment of a rotary conveyor according to the invention 100 is as a conveyor drum for conveying rod-shaped article 400 . 410 . 420 educated. As in the 1 . 2 and 6 can be seen, is the rotary conveyor 100 designed to promote articles in two parallel conveyor lines. 3 illustrates a cross section through the first conveyor line of the rotary conveyor 100 according to 1 represents, 5 a cross section through the second conveyor line of the rotary conveyor 100 according to 1 , Features, design details and advantages for a conveyor line described below apply equally to a second or further conveyor line, unless stated otherwise.

The rotary conveyor 100 has a body 110 with a substantially cylindrical shell 120 on, with the coat 120 several vacuum pockets 121 having. The vacuum bags 121 can be pressurized by connecting to a suction source (not shown) to article 400 . 410 . 420 to suck. In the 4 . 5 and 8th it can be seen that the vacuum pockets 121 flared portions towards the outer surface of the shell 122 exhibit.

In the 1 - 10 are different variants of foils 200 . 210 . 220 . 230 shown. The slides 200 . 210 . 220 . 230 Made of magnetizable metal and can be applied to the jacket 120 with fasteners, here as permanent magnets 310 are formed, are releasably secured. The permanent magnets 310 are according to 7 and 8th arranged so that they match the outer surface of the mantle 120 complete and with the outer surface of the mantle 120 to form a common, smooth surface. However, they can also protrude over the lateral surface or be slightly recessed.

The slides 200 . 210 . 220 . 230 are trained on their coat 120 opposite sides 201 . 211 . 221 . 231 the articles 400 . 410 . 420 to promote. This is shown by the slides 200 . 210 . 220 . 230 Recordings 700 . 710 . 730 . 800 On the one hand, they differ in their training and production and make them suitable for others, articles 400 . 410 . 420 different format. By the releasable attachment of the films on the jacket 120 by means of the permanent magnets 310 is it possible the slides 200 . 210 . 220 . 230 easy and fast to exchange.

The slides 200 . 210 . 230 show as hollows 700 . 710 . 730 trained shots, their open sides of the coat 120 are averted. In the in the 1 to 5 illustrated variants of the films 200 . 210 are the hollows 700 . 710 by forming or embossing in the films 200 . 210 brought in. Different depths or radii of the hollows 700 . 710 can be achieved by using different forming or embossing tools. With only small desired changes, it may be sufficient to choose a starting material with a different thickness, so that the cavity formed during the forming or embossing on the same tool has a different depth or a different radius than a trough of a manufactured on the same tool Foil with a different thickness. The hollows 730 the in 10 represented film 230 are on the side facing away from the jacket of the film 231 applied, for example by gluing or welding.

The hollows 700 . 710 . 730 have vacuum passages, which are arranged as a series of holes 500 . 530 or as longholes 510 can be trained. The vacuum outlets 500 . 510 . 530 stand with the vacuum bags 121 in fluid communication, so that on the side facing away from the jacket 201 . 211 . 231 the slides 200 . 210 . 230 the articles 400 . 410 to the slides 200 . 210 . 230 can be sucked.

The in the 6 to 9 represented film 220 has rectangular recesses 800 as recordings in which articles 420 can be included. Preferably, the edges extending transversely to the conveying direction are 801 . 802 the recesses 800 Chamfered or bevelled to the article 420 To take particularly gentle, which has a positive effect on the quality of the article 420 and the end products made therefrom. The recesses 800 stand with the vacuum bags 121 in fluid communication, so that on the side facing away from the jacket 221 the foil 220 the articles 420 to the film 220 can be sucked.

The vacuum bags 121 and the widened sections 122 are preferably formed and in particular wide enough to article 400 . 410 . 420 to be able to suck in different formats.

The films or the jacket preferably further comprise positioning means which are in the 1 . 2 . 6 and 10 as pins 600 represented by engaging in corresponding positioning holes (for foil 220 in 9 With 223 referred to) the respective film on the jacket 120 can set in a predetermined position.

As in the 9 and 10 it can be seen, the slides show 220 . 230 preferably a gap 224 . 234 on, the assembly or disassembly of the films 220 . 230 facilitated.

In one, not shown, alternative embodiment to the in 10 variant shown, there is the film 230 made of sheet metal and is designed as a closed ring. In this case, the closed ring has an inner diameter which is smaller than the outer diameter of the shell, preferably about 0.25 to about 0.75 mm smaller, more preferably about 0.5 mm smaller. Characterized in that the inner circumference of the formed as a ring film 230 a degree smaller than the scope of the 10 not shown drum body results in the assembly of such a film formed as a ring an elongation in the wells when mounting the ring on the drum body.

Due to the bias generated thereby is formed as a closed ring plate 230 fixed on the drum body. Also in this variant, the positioning of the film 230 be made on the drum body with the help of pins.

In a further, likewise not shown variant of the above embodiments, the closed ring is chamfered on at least one of its edges facing the respective end side with a facing the jacket of the drum body bevel.

In a further variant, the jacket of the drum body is chamfered on at least one peripheral edge facing the respective end face and its circumference.

In another variant of in 10 represented film 230 is the foil 230 made of sheet metal. The bridges 730 have been formed by etching a sheet metal blank used to make the film. In this case, a sheet metal blank outside of the intended areas for the webs of a base thickness is etched down to the final remaining thickness of the sheet metal foil outside the intended areas for the webs. In this case, an original sheet thickness of 3 mm is used for the sheet metal blank, which is etched outside the webs down to an etched sheet thickness of 0.15 mm down. The webs remain outside the etched area integrally connected to the sheet metal ring stand and will then by milling with the troughs 730 Mistake.

In the in the 11 to 16 illustrated embodiment of the rotary conveyor device according to the invention 1100 it is a suction roll with a body 1110 and a substantially cylindrical shell 1120 and a twist grip 1101 ,

On the coat 1120 is arranged a foil, which, as in the 11 . 12 and 14 It can be seen from several foil segments 1210 exists and is trained on her coat 1120 side facing sheet-shaped article, such as filter paper strip to promote. The coat 1120 has several vacuum pockets 1121 which, by connecting to a suction source (not shown) can be subjected to a negative pressure to articles on the jacket 1120 opposite side of the film or the film segments 1210 to be able to suck.

The foil segments 1210 are made of magnetizable metal and over as permanent magnets 1310a , b, c fasteners formed releasably on the jacket 1220 attached. The permanent magnets 1310a , b, c are annular and arranged so that they engage with the outer surface of the shell 1120 complete and with the outer surface of the mantle 1120 form a common, almost smooth surface.

The foil segments 1210 have holes as vacuum passages, which in the form of a hole pattern 1212 are arranged. These vacuum passages in the form of a hole pattern 1212 stand in the coat 1120 trained vacuum bags 1221 in fluid communication. The vacuum bags 1221a , b can, as in 12 can be seen, be formed differently. As with the above-described feed drum embodiment, in the suction roll embodiment, the formation of the vacuum pockets 1221a , b, however, format-independent, ie an adaptation of the rotary conveyor 1100 To be conveyed to different formats article can only by replacing the film 1200 or the foil segments 1210 . 1220 respectively.

In 15 is another segment 1220 for a rotary conveyor 1100 according to the 11 and 12 represented by the in 14 represented segment 1210 by a hole pattern adapted to a different format of articles 1222 different. By replacing the foil segments 1210 through the foil segments 1220 can the rotary conveyor 1100 easy, fast and cost-effective conversion to the promotion of different format items.

The foil segments 1210 . 1220 have positioning holes 1213 . 1223 on, by means of which the foil segments 1210 . 1220 on the coat 1220 preferably be determined by engagement with positioning means in a certain position.

Alternatively to the formation of the film as film segments 1210 . 1220 like in the 11 . 12 . 14 and 15 shown, the film can 1200 also like in 16 be formed integrally formed, and preferably a gap 1204 to facilitate assembly. Also the foil 1200 has vacuum ports in the form of a hole pattern 1202 and positioning holes 1203 on and trained, on her coat 1120 opposite side 1201 to promote leaf-shaped articles.

The openings 1205 in the slide 1200 or the openings 1215 between the foil segments 1210 serve as cutting blade openings, can engage in the cutting blade of a cutting blade roller, not shown, to cut an endless web of a sheet-shaped article in format-dependent strips, which then on the jacket 1220 opposite side 1201 the foil 1200 or on the coat 1220 opposite side of the film segments 1210 . 1220 be encouraged.

The embodiments shown here preferably have external dimensions that correspond to existing rotary conveyor devices. In this way, rotary conveying devices according to the invention can be used in existing machines of the tobacco processing industry and the advantages associated with the rotary conveying devices according to the invention can also be achieved in the course of retrofitting in existing machines.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 1447016 A1 [0007]
• WO 2010/012420 A1 [0007]

Claims (23)

Rotary conveying device ( 100 . 1100 ) for the promotion of articles ( 400 . 410 . 420 ) of the tobacco processing industry, comprising a body ( 110 . 1110 ) with a substantially cylindrical shell ( 120 . 1120 ), wherein the jacket several vacuum pockets ( 121 . 1121 ), which are acted upon by a negative pressure for sucking the articles, characterized in that on the jacket a film ( 200 . 210 . 220 . 230 . 1200 . 1210 . 1220 ) with fastening means ( 310 . 1310 ) is releasably secured, wherein the film is formed to promote the article on its side facing away from the jacket. Rotary conveying device ( 100 . 1100 ) according to the preceding claim, characterized in that the film ( 200 . 210 . 220 . 230 . 1200 . 1210 . 1220 ) Vacuum passages ( 500 . 1202 . 1212 . 1222 ), which are arranged in fluid communication with the vacuum pockets, so that on the shell ( 120 . 1120 ) facing away from the foil the articles ( 400 . 410 . 420 ) can be sucked to the film. Rotary conveying device ( 100 . 1100 ) according to one of the preceding claims, characterized by positioning means ( 600 ), which are arranged and formed, the film ( 200 . 210 . 220 . 230 . 1200 . 1210 . 1220 ) on the coat ( 120 . 1120 ) in a predetermined position, wherein the positioning means preferably comprise one or more pins, one or more guide rails, one or more terminal strips and / or one or more clamping bars. Rotary conveying device ( 100 . 1100 ) according to one of the preceding claims, characterized in that the fastening means comprise a clamping disc and / or a groove. Rotary conveying device ( 100 . 1100 ) according to one of the preceding claims, characterized in that the film comprises non-magnetizable metal or consists thereof. Rotary conveying device ( 100 . 1100 ) according to one of the preceding claims 1-4, characterized in that the film ( 200 . 210 . 220 . 230 . 1200 . 1210 . 1220 ) comprises or consists of magnetizable metal. Rotary conveying device ( 100 . 1100 ) according to the preceding claim, characterized in that the fastening means ( 310 . 1310 ) comprise one or more magnets, preferably permanent magnets. Rotary conveying device ( 1100 ) according to one of the preceding claims, characterized in that the film has at least two film segments ( 1210 . 1220 ), wherein preferably each of the foil segments on the shell ( 1120 ) is releasably attached. Rotary conveying device ( 1100 ) according to one of the preceding claims, characterized in that the articles are formed in sheet form and the rotary conveying device is designed as a suction roll, wherein preferably the vacuum passages ( 1212 . 1222 ) are arranged in the form of a hole pattern, which is adapted to a format of the sheet-shaped article. Rotary conveying device ( 100 ) according to one of the preceding claims 1-8, characterized in that the articles ( 400 . 410 . 420 ) are rod-shaped and the rotary conveyor device is designed as a conveyor drum, wherein preferably the film recordings ( 700 . 710 . 730 . 800 ), which are adapted to receive the rod-shaped article on a side facing away from the jacket. Rotary conveying device ( 100 ) according to the preceding claim, characterized in that the recordings ( 700 . 710 . 730 ) are formed as wells, the open sides of the jacket ( 120 ) are turned away. Rotary conveying device ( 100 ) according to one of the two preceding claims, characterized in that the recordings ( 730 ) on the side facing away from the jacket of the film ( 230 ) are applied. Rotary conveying device ( 100 ) according to claim 10, characterized in that the recordings ( 800 ) as recesses in the film ( 220 ) are formed, wherein the recesses are preferably formed rectangular. Rotary conveying device ( 100 ) according to the preceding claim, characterized in that the edges of the recesses (33) oriented transversely to the direction of rotation ( 800 ) are chamfered. Rotary conveying device ( 100 . 1100 ) according to one of the preceding claims, characterized in that, preferably consisting essentially of sheet metal, foil ( 230 ) is designed as a closed ring. Rotary conveying device ( 100 . 1100 ) according to the preceding claim, characterized in that the closed ring has an inner diameter which is smaller than the outer diameter of the shell ( 120 . 1120 ), prefers about 0.25 to about 0.75mm smaller, more preferably about 0.5mm smaller. Rotary conveying device ( 100 . 1100 ) according to one of the two preceding claims 15 or 16, characterized in that the closed ring is chamfered on at least one of its edges facing the respective end face, preferably a jacket facing the chamfer has. Rotary conveying device ( 100 . 1100 ) according to one of the preceding claims, characterized in that the jacket ( 120 . 1120 ) is chamfered on at least one of the respective end face and its periphery facing peripheral edge. Rotary conveying device ( 100 . 1100 ) according to one of the preceding claims, characterized in that the film ( 230 ) is formed as a metal sheet, wherein on the jacket ( 120 . 1120 ) facing away from the film ( 230 ) as wells ( 730 ) trained recordings are provided, the open sides of the jacket ( 120 . 1120 ) are turned away, wherein it is at the troughs ( 730 ) in radially from the film ( 230 ) projecting webs milled depressions ( 730 ). Rotary conveying device ( 100 . 1100 ) according to the preceding claim, characterized in that the webs are webs formed by etching a sheet metal blank used to produce the film. Foil set for a rotary conveyor ( 100 . 1100 ) according to one of the preceding claims, comprising at least a first and a second film ( 200 . 210 . 220 . 230 . 1200 . 1210 . 1220 ) for a rotary conveying device according to one of the preceding claims, wherein the at least one first and one second film are formed on a jacket ( 120 . 1120 ) of a body ( 110 . 1110 ) of a rotary conveying device according to one of the preceding claims to be releasably secured and on its side facing away from the jacket article ( 400 . 410 . 420 ) of the tobacco processing industry, and wherein the first film is adapted to convey articles of a first format and the second film is adapted to promote articles of a second, different from the first format. Method for conveying articles ( 400 . 410 . 420 ) of the tobacco processing industry, comprising the steps of: - providing a rotary conveying device ( 100 . 1100 ) for a machine of the tobacco processing industry comprising a body ( 110 . 1110 ) with a substantially cylindrical shell ( 120 . 1120 ), wherein the jacket several vacuum pockets ( 121 . 1121 ) having; - Applying the vacuum bags with a vacuum for sucking the article; characterized by the steps: - providing one on the jacket ( 120 . 1120 ) releasably attached foil ( 200 . 210 . 220 . 230 . 1200 . 1210 . 1220 ); - promoting the articles ( 400 . 410 . 420 ) on a side facing away from the jacket of the film. Method for adapting a rotary conveying device ( 100 . 1100 ) to the promotion of articles ( 400 . 410 . 420 ) of the tobacco processing industry of various formats, comprising the steps of: providing a rotary conveying device comprising a body ( 110 . 1110 ) with a substantially cylindrical shell ( 120 . 1120 ) and a first, releasably attached to the jacket film ( 200 . 210 . 220 . 230 . 1200 . 1210 . 1220 ), which is designed to promote on its side facing away from the jacket articles of a first format; - Remove the first slide ( 200 . 210 . 220 . 230 . 1200 . 1210 . 1220 ); Providing a second film ( 200 . 210 . 220 . 230 . 1200 . 1210 . 1220 ), which is designed to promote on its side facing away from the jacket articles of a second format; Releasably securing the second foil ( 200 . 210 . 220 . 230 . 1200 . 1210 . 1220 ) on the coat.

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