DE102010030349A1 - Conveyor drum of the tobacco processing industry - Google Patents

Abstract

The invention relates to a conveyor drum (100) of the tobacco processing industry with a drum body (102) having an outside (104) and at least one knife body (110) arranged on the outside (104) of the drum body (102).
The conveyor drum (100) is further developed in that a tensioning device (122, 124) acting on the inner side (106) of the drum body (102) facing away from the outer side (104) of the drum body (102) preferably forms the knife body (110) a tensile stress, is provided.
Moreover, the invention relates to a covering device of a machine of the tobacco-processing industry, in particular filter attachment machine, which is formed with a corresponding conveyor drum, and a machine of the tobacco-processing industry, in particular filter attachment machine, using or with a conveyor drum according to the invention.

Description

The invention relates to a conveyor drum of the tobacco-processing industry with a drum body having an outside and at least one knife body arranged on the outside of the drum body.

Furthermore, the invention relates to a covering device of a machine of the tobacco-processing industry, in particular filter attachment machine, and a machine of the tobacco-processing industry, in particular Filteransetzmaschine.

In Filteransetzmaschinen is inserted between cut and longitudinally axially spaced tobacco rods each have a filter piece or mouthpiece, followed anschlennd a glued connecting tabs is attached to the assembled cigarette mouthpiece cigarette group.

In DE-A-39 18 137 (equivalent to US-A-5 054 346 ) Beipspielsweise a covering paper aggregate of a filter attachment machine is described. Here, the glued tipping paper is supplied as an endless tipping paper strip and cut by means of a cutting device into individual leaflets or connecting leaflets.

The cutting device consists of a cutterhead with outwardly directed knives and a suction drum with recesses whose leading edge in the direction of rotation is designed as a cutting edge. Between the grooves, the suction drum with suction air acted upon surfaces on which the tipping paper strip and the tipping paper leaflets are held or guided. Due to the length of the tipping paper leaves results in a compact design of trained as a tipping paper roll suction drum.

The knives of the rotating knife drum engage in the grooves of the counter-rotating tamping paper roll, wherein the tipping paper strip is cut between a knife and a cutting edge.

Based on this prior art, the object of the invention is to provide a, preferably compact or compact, conveying drum of the tobacco processing industry, in which a cutting edge, in particular a cutting edge of a knife body, in a simple and fast way is interchangeable.

This object is achieved by a conveyor drum of the tobacco-processing industry with a drum body having an outer side and at least one arranged on the outside of the drum body knife body, which is further developed by an acting on one of the outside of the drum body inside of the drum body attacking clamping device for the knife body , is preferably provided under the formation of a tensile stress or a tensile stress.

The invention is based on the idea that one or more clamping devices for one or more knife bodies arranged on the outside of the drum are provided on the inside of the conveyor drum, for example from the sides, and there on the inside of the drum body to form a tensile stress, which is also referred to as tensile stress in the context of the invention, attack. The tensioning devices are easily accessible from the inside of a compactly constructed conveyor drum or tamping roller, preferably from the front sides of the conveyor drum, wherein in addition a simple and quick installation and removal of the respective knife body or the knife body is made possible.

For quick change of a cutting edge of the conveyor drum z. B. on the support bodies for tipping paper strips of the knife body is replaced after loosening the inside clamping device or manually rotated. Preferably, a knife body with a rectangular or square cross-section up to four cutting edges. The cutting edges of the knife body act together with the, preferably in grooves of the conveyor drum or the tamping paper roller, knives arranged on the conveyor drum cutter or cutting drum to cut, for example, glued pad paper or leaflets from one (endless) tipping paper strip.

In particular, by the clamping device, a radially inwardly directed tensile stress is formed, whereby the clamping force acts substantially opposite to the centrifugal force of the rotationally driven conveyor drum, so that no forces acting transversely to the clamping force on the clamping device occur in the rotating conveyor drum and must be compensated accordingly.

Another advantage of the invention is that the clamping device does not require space on the outside of the conveyor drum, whereby a maximum support surface for a strip of material section is available.

In the context of the invention, the outer surface or outer surface of a conveyor drum or a drum body is understood to be the circumferential surface facing away from the axis of rotation, while the sides or side surfaces are the conveyor drum or Limit the drum body in width and are arranged transversely to the axis of rotation. A direction transverse to the peripheral surface of the conveyor drum or the drum body is referred to as radial, an arrangement along the direction of the axis of rotation of the conveyor drum or the drum body as longitudinal or longitudinal.

Advantageously, the inside of the drum body is formed flat at least in a contact region with the clamping device in order to enable a flat abutment between a clamping head of the clamping device and the inside of the drum body.

In a preferred embodiment of the invention, the drum body with at least one radially between the inside and a receptacle for a knife body arranged connecting channel for the clamping device, in particular for receiving a clamping bolt of the clamping device is formed. This makes it possible, for. B. to arrange the chuck of the clamping device within the drum body, whereby a compact design of the conveyor drum is achieved and the side surfaces or end faces of the conveyor drum, for example, for connections for the suction available.

In a particularly advantageous embodiment of the conveyor drum according to the invention it is provided that at least one or more, preferably arranged in the circumferential direction at regular intervals, support body are provided with one support surface for a material strip portion on the outside of the drum body, wherein a knife body so at the trailing edge of a support body is arranged, which terminates a, in particular the outside of the drum body facing surface of the knife body flush with the support surface of the support body. As a result, an optimal utilization of the existing on the circumference of the conveyor drum surface for supporting material strip sections is achieved. In the conveying drum, in particular between two support bodies in the circumferential direction of the drum each formed a recess or groove, wherein the or the knife body is arranged relative to the circumferential direction or rotational direction of the conveyor drum between the trailing edge of an anticipatory support body and the leading edge of the trailing support body.

In the context of the invention, the front edge of a support body is understood to mean the leading edge, in particular in the direction of rotation, of the conveyor drum, in particular the longitudinal axis, of the support body.

Likewise, it is particularly advantageous to provide on the drum body, preferably between two support bodies for material strip sections, a receptacle with a pressing surface for a knife body and a wall surface opposite the pressing surface, wherein the clamping device has a clamping body resting on the wall surface and on a surface of the knife body facing the wall surface the clamping device, in particular a clamping bar comprises.

By this design, a preferably radially directed clamping force is deflected into a substantially tangenzial acting on the outside of the drum body pressing force on the knife body and a corresponding counterforce on the drum body. This makes it possible to record the counterforce on a particularly massive and resilient position of the knife body, while at the point of contact with the clamping device on the inside of the drum body lower forces occur.

It is particularly advantageous that a clamping body has a large, in cross section straight, contact surface and a small, in particular round cross-section, contact surface, wherein in particular the large contact surface on a wall surface of the drum body and the small contact surface are arranged on a knife body. By a large, especially in cross-section straight, contact surface, a uniform distribution of forces and a correspondingly lower contact pressure is achieved. On the knife body, which is preferably made of specially hardened material, the round shape of the clamping body on the one hand, a positive connection between. Clamping body and knife body and on the other hand achieved a high, better metered contact pressure in line-like contact.

In the context of the invention can also be provided that the front edge of a support body for a strip of material as, preferably a clamping body superior, is formed projection.

In a further embodiment of the invention, provision is made for a knife body to be provided on the drum body with a contact surface facing the outside of the drum body, wherein the clamping device comprises a clamping means acting on the knife body, preferably directly, in particular a clamping bolt anchored to the knife body. Here, the knife body is fixed by a radially inwardly directed tensile force of the clamping device.

Moreover, it is preferred in one embodiment, if at least two clamping devices are provided for a knife body, in particular, the two or two clamping devices longitudinally spaced axially, preferably on the sides or end faces of the drum body, are arranged. As a result, a distribution of the clamping forces is achieved on the knife body, wherein the expended by each clamping device clamping force can be correspondingly lower.

In a particularly preferred embodiment, the conveying drum according to the invention as a tipping paper roll or tipping paper drum of a padding device of a machine of the tobacco-processing industry, in particular Filteransetzmaschine formed.

The object is also achieved by a padding device of a machine of the tobacco-processing industry, in particular filter attachment machine, which is formed with a corresponding conveyor drum, as described above.

Furthermore, the object is achieved by a machine of the tobacco processing industry, in particular filter attachment machine, using or with a conveyor drum described above. To avoid repetition, reference is expressly made to the above statements.

Further features of the invention will become apparent from the description of embodiments according to the invention together with the claims and the accompanying drawings. Embodiments of the invention may satisfy individual features or a combination of several features.

The invention will be described below without limiting the general inventive idea by means of embodiments with reference to the drawings, reference being expressly made to the drawings with respect to all in the text unspecified details of the invention. Show it:

1 schematically an embodiment of a pad means of a filter attachment machine in a schematic side view;

2 schematically an enlarged view of the pad cutting device 1 ;

3 schematically a plan view transverse to the circumferential direction of an embodiment of a conveyor drum according to the invention;

4 schematically a cross section along the line AA 3 and

5 schematically an equivalent cross section of another conveyor drum according to the invention.

In the following figures, identical or similar elements or corresponding parts are provided with the same reference numerals, so that a corresponding renewed idea is dispensed with.

1 shows a schematic side view of a device 1 for feeding a partially perforated tipping paper strip 2 in a schematically designated filter attachment machine F. A filter attachment machine of the patent applicant is known by the name MAX. The device 1 The following is the path of the tipping paper strip 2 described.

The tipping paper strip 2 is from one according to the indicated arrow direction about an axis 5 rotating supply roll 4 by means of a take-off roller pair 6 and 8th deducted. One of the two take-off rolls, here the take-off roll 6 , it is about a toothed belt 7 from a drive 11 driven.

Before the tipping paper strip 2 to the extraction rollers 6 and 8th he passes through a guide roller 12 to a crusher 14 promoted. The crusher 14 breaks the paper of the tipping paper strip 2 so that it can later be wrapped around the filter-cigarette groups more easily.

Downstream of the take-off rolls 6 and 8th is a sensor 16 arranged to capture perforated sections on the tipping paper strip 2 serves. The sensor 16 For example, is a light scanner, which works by transmitted light or reflection method to perforated sections or, where appropriate, the markings on the tipping paper strip 2 to recognize.

At a specified distance downstream from the sensor 16 is a gluing device 22 for applying glue patterns to the tipping paper strip 2 intended. The gluing device 22 has a glue nozzle 24 on, as for example in DE-A-44 37 764 (equivalent to US-A-5,769,947 ) is disclosed. With the help of the glue nozzle 24 Glue pictures on the tipping paper strip 2 applied, which have glue-free zones, the perforated sections on the tipping paper strip 2 so that no glue is applied to the perforated sections.

Downstream of the gluing device 22 arrives the tipping paper strip 2 over deflection rollers 26 . 28 and 29 to a pad cutting device 30 for the periodic separation of tipping paper sections from the tipping paper strip 2 , The pad cutting device 30 is in a fixed path in the direction of movement 20 of the tipping paper strip 2 behind the glue nozzle 24 arranged. With always the same length of the tipping paper strip 2 between the glue nozzle 24 and the pad cutter 30 is during the cut by a control of the glue nozzle 24 the generated glue pattern aligned with the position of the cut.

The pad cutting device 30 has a knife drum 32 with arranged at its periphery, slightly angled towards the radial knives 34 , and a counter-rotating, the tipping paper strip 2 receiving as lining paper drum or tamping paper roll trained cutting drum 36 on. The cutting drum 36 has groove-like recesses 38 on, in which the knives 34 due to the distance of the drums 32 and 36 to each other with rotation of the two drum 32 and 36 can dive to the on the circumference of the cutting drum 36 sitting tipping paper strips 2 separate. Below the on the circumference of the cutting drum 36 provided bearing surfaces 40 has the cutting drum 36 suction holes communicating with a suction device 42 to hold the tipping paper strip 2 and the separated tipping paper leaflets 39 on the cutting drum 36 on.

Between the guide rollers 26 and 28 is one with the tipping paper strip 2 in contact oscillator 44 arranged and with the drums 32 and 36 synchronized to the tipping paper strip 2 after each cut through one of the knives 34 slightly against the direction of movement 20 to restrain relative to the drum surface, so that a distance between the individual cut sections or tipping paper leaflets 39 of the tipping paper strip 2 arises. The oscillator 44 thus converts the uniform supply of tipping paper strip 2 to Beleimeinrichtung 22 in a non-uniform supply to the pad cutting device 30 around. Further details of the pad cutting device 30 and the oscillator 44 can for example DE-A-39 18 137 be removed.

The 2 shows schematically in a fragmentary enlarged view of the pad cutting device 30 , The tipping paper strip 2 becomes a cutting drum 36 promoted, which the tipping paper strip 2 opposite the cutterhead 32 wraps around in a predetermined angle section. The peripheral surface of the cutting drum 36 is acted upon in the usual way with suction, which via Saugluftbohrungen 42 and 43 is supplied and the tipping paper strip 2 on the surface of the cutting drum 36 holds and guides and is dimensioned so that a slip between the tipping paper strip 2 and the surface of the cutting drum 36 is possible. The cutting drum 36 has axially parallel grooves or recesses in its peripheral surface 38 on whose leading edge in the direction of travel 47 as a cutting edge for the tipping paper leaflets 39 from the tipping paper strip 2 separating separating cut are provided.

The knife drum 32 carries at its periphery transverse to the direction of rotation running knife 34 , which in circulation one after the other in the grooves 38 the cutting drum 36 plunge. The cutting edges of the knives 34 are inclined at an angle to the knife drum axis, so that the two ends of the cutting edge circulate on different cutting circles, wherein the cut with the immersion of the first cutting edge end in the corresponding groove or recess 38 the cutting drum 36 begins and ends with the immersion of the second cutting edge end.

The cutting drum 36 has in the circumferential direction of the cutting drum 36 arranged support body 50 on the outside over corresponding bearing surfaces 40 for the tipping paper leaflets 39 or the tipping paper strip 2 feature. Between the support bodies 50 are as a break the recesses 38 educated.

3 schematically shows a section of the circumferential view of a conveyor belt according to the invention designed as a lining paper drum or tamping paper roll 100 , especially as a cutting drum 36 the described pad cutting device 30 can be used.

The conveyor drum 100 has a drum body 102 on, on the outside at regular intervals in the circumferential direction of the conveyor drum 100 support body 50 are arranged for tipping paper leaflets. In 3 are in the clipping two support body 50 the conveyor drum 100 shown, each centrally arranged bearing surfaces 40 for a tipping paper strip 2 or for a tipping paper leaflet 39 exhibit. The bearing surfaces 40 have corresponding pressurizable with negative pressure suction holes 42 to hold cut tipping papers on the outside. Furthermore, each support body 50 two next to the support surface 40 laterally arranged mold cavities 82 and a leading edge 80 and a trailing edge 85 on.

Between the two illustrated support bodies 50 is in the circumferential direction of the drum body 102 a groove or recess 38 trained as a recording 130 for a knife body 110 is provided. In the recording 130 is a corresponding, in particular one-piece, knife body 110 , arranged,

On the two sides or end faces of the conveyor drum 100 are also in the recording 130 one clamping bar each 124 . 124 ' a clamping device for the knife body 110 arranged partially from the front edge 80 of the support body 50 are covered. Each clamping bar 124 . 124 ' has, preferably in the center, a threaded bore for receiving a respective clamping bolt 122 . 122 ' a clamping device for the knife body 110 on. The tension bars 124 . 124 ' for each one knife body 110 in a recording 130 are arranged longitudinally axially spaced from each other.

In 4 is a schematic view of the conveyor drum 100 along the in 3 drawn section line AA shown. The drum body 102 is designed as a rotational body, wherein on the outside 104 of the drum body 102 the support body 40 and the knife bodies 110 over the peripheral surface of the drum body 102 arranged at regular intervals. In addition, the drum body 102 a freely accessible inside 106 on, at the one on the inside 106 engaging and inwardly tensioned tensioning device for the knife body 110 arranged or formed.

The recording 130 for a knife body 110 or the groove-like recess 38 between two support bodies 50 on the outside 104 has a over the entire width of the conveyor drum 100 extending pressure surface 132 for a knife body 110 at the trailing edge of the support body 50 on.

Furthermore, the recess 38 of the drum body 102 with a, in particular wedge-shaped, elongated hole or formed as a slot, the z. B. from the side into the drum twill 102 is milled. The slot or the recess 38 in particular has one of the pressure surface 132 for the knife body 110 opposite wall surface 134 at the circumferential direction of the drum body 102 lagging support body 50 on.

The slot-shaped recess 38 is by a projection on the front edge 80 one or the lagging support body 50 for material strip sections to the outside 104 of the drum body 102 towards, ie limited to the top.

Furthermore, in the drum body 102 a radial bore 108 from the, in particular with a wedge-shaped slot formed recess 38 to the inside 106 of the drum body 102 intended. Around the hole 108 from the outside 104 of the drum body 102 Execute forth, has the projection of the support body 50 or the projecting leading edge 80 of the support body 50 a recess 86 in the area of the radially aligned bore 108 on (cf. 3 ).

Into the hole 108 between the support bodies 50 is or is a tension bolt 122 the clamping device introduced, wherein the clamping bolt 122 a head 123 which is on the free inside 106 of the drum body 102 in one area 107 around the hole 108 is applied. The area 107 on the inside 106 of the drum body 102 is as an abutment for the clamping bolt 122 formed, the area 107 around the head 123 of the clamping bolt 122 flat or plan is formed to the positive support of the head 123 of the clamping bolt 122 on the inside 106 of the drum body 102 to ensure.

The one in the recording 130 introduced and on the pressure surface 132 of the anticipatory support body 50 adjoining knife body 110 has on its longitudinal side a surface 112 on, the wedge-shaped slot of the recess 38 , in particular the wall surface 134 the recess 38 , facing. Between the wall surface 134 and the opposite surface 112 of the knife body 110 is a clamping bar 124 with a threaded hole for receiving the clamping bolt 122 arranged. The clamping bar 124 is non-circular in cross-section and thus faces the wall surface 134 towards a relatively large contact area 126 on. The clamping bar 124 is also in contact with the surface 112 of the knife body 110 , wherein in particular the contact region is formed like a line.

In an alternative, not shown embodiment, the clamping bar 124 In cross section round or cylindrical.

The trained as a clamping body clamping bar 124 has a threaded hole in the one through the bore 108 guided clamping bolt 122 to the clamping bar 124 engages and pulls them radially inwards, whereby when tightening the clamping bolt 122 the knife body 110 against the pressure surface 132 is pressed. By the clamping bolt 122 and the clamping bar 124 is a clamping device for the at the trailing edge of a support body 50 on the back side 132 adjoining knife body 110 trained or provided, wherein by the on the inside 106 of the drum body 102 the conveyor drum 100 attacking clamping device is formed inwardly tensioned tension (tensile stress).

In 5 is another embodiment of a conveyor drum in cross section 100 with one on the inside 102 of the drum body 102 attacking tensioning device for on the outside 104 of the drum body 102 arranged knife body 110 shown schematically in the neckline. Here, the clamping bolt engages 122 directly on the knife body 110 and clamps this against a transverse to the clamping direction arranged pressing surface 133 , The pressing surface 133 is at the bottom of the recess 38 educated.

The knife body 110 is provided in this embodiment with one or more holes, so that in the threaded holes each have a clamping bolt 122 is recorded or is. By tightening the clamping bolts 122 with those on the inside 102 of the drum body 102 adjacent heads 123 of the respective clamping bolt 122 in the plane area 107 becomes a tensioning device for the knife body or bodies 110 provided, with the formation of a voltage to be loaded, the knife body are pulled or held inward.

All mentioned features, including the drawings alone to be taken as well as individual features that are disclosed in combination with other features are considered alone and in combination as essential to the invention. Embodiments of the invention may be accomplished by individual features or a combination of several features.

LIST OF REFERENCE NUMBERS

1

contraption

2

Covering paper strip

4

supply roll

5

axis

6

off roll

8th

Off rollers

7

toothed belt

11

drive

12

deflecting

14

breaker

16

sensor

22

glueing

24

glue nozzle

26

deflecting

28

deflecting

29

deflecting

30

Covering cutter

32

cutterhead

34

knife

36

cutting drum

38

recess

39

Tipping paper

40

bearing surface

42

Saugluftbohrung

43

Saugluftbohrung

44

oscillator

47

flank

50

support body

80

leading edge

82

mold cavity

85

trailing edge

100

conveyor drum

102

drum body

104

outside

106

inside

107

contact area

108

connecting channel

110

knife body

112

surface

114

surface

122, 122 '

clamping bolt

123

head

124, 124 '

clamping bar

126

Touchpad

128

Touchpad

130

admission

132

pressing surface

133

pressing surface

134

wall surface

F

filter attachment

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

• DE 3918137 A [0004, 0042]
• US Pat. No. 5,054,346 A [0004]
• DE 4437764 A [0039]
• US 5769947 A [0039]

Claims (13)

Conveyor drum ( 100 ) of the tobacco processing industry with an outside ( 104 ) having drum body ( 102 ) and at least one on the outside ( 104 ) of the drum body ( 102 ) arranged knife body ( 110 ), characterized in that one on one of the outside ( 104 ) of the drum body ( 102 ) facing away from the inside ( 106 ) of the drum body ( 102 ) engaging tensioning device ( 122 . 124 ) for the knife body ( 110 ), preferably with the formation of a tensile stress, is provided. Conveyor drum ( 100 ) according to claim 1, characterized in that the inside ( 106 ) of the drum body ( 102 ) at least in one contact area ( 107 ) with the tensioning device ( 122 . 124 ) is flat. Conveyor drum ( 100 ) according to claim 1 or 2, characterized in that the drum body ( 102 ) with at least one radially between the inside ( 106 ) and a recording ( 130 ) for a knife body ( 110 ) arranged connecting channel ( 108 ) for the tensioning device ( 122 . 124 ), in particular for receiving a clamping bolt ( 122 ) of the tensioning device ( 122 . 124 ), is trained. Conveyor drum ( 100 ) according to one of claims 1 to 3, characterized in that on the outside ( 104 ) of the drum body ( 102 ) at least one or more, preferably arranged in the circumferential direction at regular intervals, support body ( 50 ) each having a contact surface ( 40 ) for a strip of material strip ( 39 ) are provided, wherein a knife body ( 110 ) at the trailing edge ( 85 ) of a support body ( 50 ) is arranged that one, in particular the outside ( 104 ) of the drum body ( 102 ) surface ( 114 ) of the knife body ( 110 ) flush with the support surface ( 40 ) of the support body ( 50 ) completes. Conveyor drum ( 100 ) according to one of claims 1 to 4, characterized in that on the drum body ( 102 ), preferably between two support bodies ( 50 ) for material strip sections ( 39 ), a recording ( 130 ) with a pressure surface ( 132 ) for a knife body ( 110 ) and one of the pressing surface ( 132 ) opposite wall surface ( 134 ) is provided, wherein the tensioning device ( 122 . 124 ) one on the wall surface ( 134 ) and on one of the wall surfaces ( 134 ) facing surface ( 112 ) of the knife body ( 110 ) adjoining clamping body ( 124 ), in particular a clamping bar ( 124 ). Conveyor drum ( 100 ) according to claim 5, characterized in that the wall surface ( 134 ) of the recording ( 130 ) and one of the wall surfaces ( 134 ) facing, preferably opposite, surface ( 112 ) of the knife body ( 110 ) are arranged at an acute angle to each other, wherein the tensioning device ( 122 . 124 ) a tensioning means ( 122 ), preferably a clamping bolt ( 122 ), the one or more on the clamping body ( 124 ) attacks. Conveyor drum ( 100 ) according to claim 5 or 6, characterized in that a clamping body ( 124 ) a large, especially in cross-section straight, contact surface ( 126 ) and a small, in particular round in cross-section, contact surface ( 128 ), wherein in particular the large contact surface ( 126 ) on a wall surface ( 134 ) of the drum body ( 102 ) and the small contact area ( 128 ) on a knife body ( 110 ) are arranged. Conveyor drum ( 100 ) according to one of claims 1 to 7, characterized in that the leading edge ( 80 ) of a support body ( 50 ) for a strip of material strip ( 39 ) as, preferably a clamping body ( 124 ) superior, projection is formed. Conveyor drum ( 100 ) according to one of claims 1 to 4, characterized in that on the drum body ( 102 ) a recording ( 130 ) with one of the outside ( 104 ) of the drum body ( 102 ) facing contact surface ( 133 ) for a knife body ( 110 ) is provided, wherein the tensioning device ( 122 . 124 ) on the knife body ( 110 ), preferably immediately engaging tensioning means ( 122 ), in particular one on the knife body ( 110 ) anchored clamping bolt ( 122 ). Conveyor drum ( 100 ) according to one of claims 1 to 9, characterized in that at least two clamping devices ( 122 . 124 . 122 ' . 124 ' ) for a knife body ( 110 ) are provided, in particular the two or two clamping devices ( 122 . 124 . 122 ' . 124 ' ) longitudinally axially spaced, preferably on the two sides of the drum body ( 102 ) are arranged. Conveyor drum ( 100 ) according to one of claims 1 to 10, characterized in that the conveyor drum ( 100 ) as a cutting drum ( 36 ) a covering device of a machine (F) of the tobacco-processing industry, in particular filter attachment machine (F) is formed. Sealing device of a machine (F) of the tobacco-processing industry, in particular filter attachment machine (F), with a conveyor drum ( 100 ) according to one of claims 1 to 11. Machine (F) of the tobacco processing industry, in particular filter attachment machine (F), using a conveyor drum ( 100 ) according to one of claims 1 to 11.

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