DE102007024271B4 - conveyor drum - Google Patents

Abstract

conveyor drum (10) for rod-shaped article the tobacco processing industry with a lifting means (22, 23, 29; 51, 51 ') to the longitudinal axial Shifting in at least one row transversely of the conveyor drum (10) stream feeder Articles, wherein the lifting means (22, 23, 29; 51, 51 ') of a first predetermined stroke variable to a second predetermined stroke characterized in that the lifting means (22, 23, 29; 51 ') has a first lift gate (22; 51, 51') for the first predetermined stroke and a second lift gate (23, 29, 51, 51 ') for the second predetermined one Hub has.

Description

The The invention relates to a conveyor drum for rod-shaped articles the tobacco processing industry with a lifting means for longitudinal axial Moving in at least one row queraxial the conveyor drum stream feeder Articles, wherein the lifting means of a first predetermined stroke is variable to a second predetermined stroke. Further concerns the invention is a machine of the tobacco processing industry.

Under Articles of the tobacco processing industry are presented here Related such objects understood, in single-layer or multilayer series by means of suction on promoters, like z. B. on conveyor drums in filter or cigarette making machines, and held by promoted this become. Such articles are filter cigarettes, cigars, cigarillos as well as filter rods, Filter segments, etc. For simplicity's sake, below is spoken of cigarettes or filters, so the said applies completely accordingly also for other to be promoted Article of the aforementioned type such. B. Filter segments.

In Cigarette machines become cigarettes across their longitudinal axial Orientation on conveyor drums, which are primarily drums of cigarette making machines or of filter attachment machines, held with suction air. On the conveyor drums can arranged side by side in two substantially parallel rows of cigarettes and on the conveyor drums be moved at right angles with respect to the cigarette axes. Around z. B. a double filter between two axially aligned Insert cigarettes, become cut double long tobacco sticks on the conveyor drum longitudinal axial spread and inserted a double-length filter rod.

During the Spread of the tobacco sticks on the conveyor drum experience the tobacco sticks a predetermined stroke, so that the tobacco sticks are longitudinally spaced apart.

Furthermore are known sliding drums, where in parallel rows, offset mutually arranged filter rods, pushed together on the sliding drum to a series of filter rods arranged one behind the other become.

at the known spreading drums and sliding drums learn the articles on these conveyor drums a predetermined longitudinal axial Hub. Here, the stroke or the longitudinal axial displacement is on the conveyor drum fixed.

In EP 1 425 979 B1 is disclosed a conveyor drum, wherein the stroke of the lifting means is adjustable. The lifting means is designed as a swash plate, the inclination and thus the stroke are infinitely adjustable.

Out EP 1 452 100 A1 Another conveyor drum is known, which has a lifting means having an adjustable stroke. In this case, a cam mechanism is provided as a lifting means, which is formed by means of a cam body, a lever arm and a sliding element connected to the lever arm. The stroke can be adjusted continuously by means of the change in the lever length of the lever arm.

outgoing from this prior art, it is an object of the present invention a conveyor drum to create that with simple means and reliable various length customizable articles of the tobacco processing industry is, for. B. after a production change, with other existing facilities at the machine of the tobacco processing industry after the production change continue to be used.

Is solved this task with a conveyor drum for rod-shaped articles the tobacco processing industry with a lifting means for longitudinal axial Moving in at least one row queraxial the conveyor drum stream feeder Articles, wherein the lifting means of a first predetermined stroke is variable to a second predetermined stroke, characterized in that the lifting means a first lifting gate for the first predetermined Hub and a second lift gate for having the second predetermined stroke.

The Invention is based on the idea that in machines of tobacco processing Industry often a small number of different formats are processed. For this Cases is it is not necessary to provide a stepless adjustability of the stroke length. This eliminates complex technical solutions, as in example stepless and variably adjustable swashplate or cam mechanism with adjustable stroke. Instead, it's enough for everyone in the production process used formats each provide a separate Hubkulisse and during a production change between the respective lifting scenes switch. Another advantage of this solution is that mistakes avoided in the setting of continuously adjustable lifting means become. The predetermined Hubkulissen according to the present invention enable a simple and error-free setting and a simple change the respective predetermined strokes.

If preferably the first lift gate and / or the second lift gate are designed as shift gate, a simple possibility for production change is created. In this case who the first and / or the second lift gate in a production change in each case in a corresponding active state, so that the stroke is determined by the switched first or second Hubkulisse. In two lifting scenes is a lifting gate in an active state or in a working position, while the second Hubkulisse is in a passive state, that is switched off.

Preferably is for switching a, in particular mechanical or electrical or magnetic, switching device provided so that either switched one or the other Hubkulisse in an active state is or is.

Preferably are on the conveyor drum shots for the Article provided, wherein the recordings longitudinally to the alignment of the Article are designed to be displaced. During the cross-axial promotion and the longitudinal axial Displacement will be on the conveyor drum the items kept safe in the recordings.

To is preferably at least one receptacle on a longitudinal axial arranged to align the article movable carriage. It is also provided within the scope of the invention, two or more shots to arrange on a sledge.

If the receptacle and / or the carriage preferably at least one longitudinal axial are arranged for aligning the article movable guide rod, is the conveyor drum simple and easy to implement. The guide rods move in the course of promotion on the conveyor drum longitudinally axially, where they follow the curve profile of Hubkulissen.

advantageously, has the guide rod one Curve follower, by means of which a cam profile of the first Hubkulisse and / or a curve profile of the second Hubkulisse in changes the stroke position of the guide rod and / or the recording and / or the slide are implemented or be implemented. The cam follower preferably has rollers, The wear on the lift gate wear and friction roll. Especially points the curve follower for in each case a lifting link at least one corresponding role.

A further advantageous embodiment undergoes the conveyor drum when the curve follower from the first lift gate to the second lift gate and / or from the second Hubkulisse is switchable to the first Hubkulisse. In this Case the switching does not take place by a circuit of the lifting link, but by switching the cam follower of a Hubkulisse to another lift gate.

at this solution are the masses that need to be moved, smaller than at the Hubkulisse.

Around a safe promotion and a safe longitudinal axis Displacement of the subsidized To achieve articles, it is advantageously provided that the guide rod loaded by a spring and against the first lift gate and / or pressed the second Hubkulisse is or will. For this purpose, the spring is preferably on the curve follower opposite End of the guide bar arranged.

Around preferably the longitudinal axial Movement of the guide rod directly into a longitudinal axial Displacement of the subsidized Converting articles are a first shot and / or a first shot Carriage with a first guide rod firmly connected.

If the articles of the tobacco processing industry in two separate Rows are transported transversely and side by side on the conveyor drum, is it to the longitudinal axial Spreading or spacing the rows of articles necessary, they independently longitudinal axial to move. For this purpose, it is preferably provided that a second Recording and / or a second carriage with a second guide rod are firmly connected. With this measure are for the two Rows of promoted items each own recordings, sleds and guide rods provided, the independently from each other longitudinally be moved or moved.

A compact construction and stable construction is achieved when the first receptacle and / or the first carriage connected to the second guide rod are, wherein the first receptacle and / or the first carriage means a plain bearing of longitudinal axial Movements of the second guide rod are decoupled.

Further Preferably, it is provided that the second receptacle and / or the second carriages are connected to the first guide rod, wherein the second receptacle and / or the second carriage means a plain bearing of longitudinal axial Movements of the first guide rod are decoupled.

The Recordings or slides are thus guided on two guide rods, wherein they each only the longitudinal axial Displacements of that guide rod join in, with whom they are firmly connected. On the other or second guide rod however, they are longitudinally axial slidably arranged. This embodiment of the invention provides a high degree of stability while tilting the recordings or the carriage is effectively prevented. Further is it possible in this way Slides with several shots with little design effort provided.

In a development of the invention has the conveyor drum a first lifting means and a second lifting means, wherein the first Lifting means for longitudinal axial Move the first guide bar and the second lifting means for longitudinal axial Move the second guide rod are each formed. Thus, each series of articles is about them each associated guide rods assigned its own lifting means. Each batch of sponsored Learn articles therefore independent from the other row a separate hub.

advantageously, are the lifting means for symmetrical longitudinal axial displacement of first guide rod and / or the first receptacle and / or the first carriage on the one hand and the second guide bar and / or the second receptacle and / or the second carriage, on the other hand an axis of symmetry formed.

These symmetrical design of the longitudinal axial Displacement of the two rows of transversely promoted article of the tobacco processing Industry increased the usability of the conveyor drum according to the invention in a machine the tobacco processing industry, as one in the other conveyor drums the machine existing symmetry in the conveyor drum according to the invention is respected.

For example it is with the conveyor drum according to the invention possible, to produce filter cigarettes of the same length before and after a change of production, for example, before the production change shorter filter sticks with longer tobacco sticks to be used while longer after the production change filter sticks with shorter ones tobacco sticks be combined. In the latter case, it is sufficient on a conveyor drum according to the invention the promoted in two rows tobacco sticks after the production change further apart from each other insert the correspondingly longer filter canes before the change of production and into the gap. The symmetry axis of promotion of filter sticks and the tobacco sticks remains before and after the production change as well as the length of the Filter cigarettes received, so no further adjustments one Filter attachment required are.

The Invention is further solved through a machine of the tobacco processing industry with at least an inventive above described conveyor drum. To avoid repetition is on the top of the conveyor drum according to the invention Said directed.

The Invention will be described below without limiting the general inventive concept of exemplary embodiments with reference to the drawings, with respect to all not closer in the text explained Details of the invention expressly is referred to the drawings. Show it:

1 a cross section through a conveyor drum according to the invention in a schematic representation,

2a . 2 B schematic detailed representations of a shift gate according to the invention,

3a . 3b schematic detail views of a cam follower according to the invention and

4 a schematic Abrolldarstellung a conveyor drum according to the invention.

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

In 1 is a schematic representation of a cross section through a conveyor drum according to the invention 10 shown in the clipping. The conveyor drum 10 has a control flange 11 which is firmly connected to a machine of the tobacco processing industry (not shown). On the control flange 11 is rotatable a control ring 12 arranged.

On the control ring 12 is a guide rod 13 provided in a curve follower 25 with two on an axis 28 arranged roles 26 . 27 having. With the role 27 the curve follower rolls 25 and thus the guide rod 13 on a fixed lift gate 22 from. The guide rod 13 is by means of a sliding bearing 21 longitudinally axially movable with the housing of the conveyor drum 10 connected.

Outside the fixed lift gate 22 is a shift gate 23 provided by means of a switching device 24 is switchable. The switching device 24 may be formed according to the invention mechanically, electrically or as a combination thereof.

In 1 is the switching device 24 for the shift gate 23 in a switching position in which the shift gate 23 opposite the lift gate 22 concerning the roles 26 . 27 of the cam follower 25 is offset to the rear.

After an actuation of the switching device 24 becomes the shift gate 23 opposite the lift gate 22 towards the curve follower 25 postponed. In the final position of the shift gate 23 this projects over the Hubkulisse 22 out, leaving the curve follower 25 with his role 26 at the curve follower 25 opposite surface of the shift gate 23 rolls. In this case, the role stands 27 of the cam follower 25 not in contact with the surface of the lift gate 22 ,

With the guide rod 13 is by means of a fastening 16 . 16 ' a sleigh 14 with a recording 15 firmly connected. In the recording 15 be transversely promoted rod-shaped articles of the tobacco processing industry inserted (not shown).

Another sled 17 with a recording 18 is like that on the guide rod 13 arranged that the slide 17 from the guide rod 13 is enforced. The sled 17 has a plain bearing 19 on, so the sled 17 longitudinal axial movements of the guide rod 13 does not follow. Perpendicular to the longitudinal axis of the guide rod 13 is the sled 17 but not opposite the guide rod 13 movable. An axis of symmetry 20 is shown in phantom, around which the sledges 14 . 17 be moved longitudinally symmetrical.

In 2a and 2 B is a detail from 1 increased. In 2a is shown that the shift gate 23 by means of the switching device 24 is switched in an inactive position. The bottom roll 27 of the cam follower 25 that with the guide rod 13 is connected, rolls on the opposite surface of the Hubkulisse 22 from.

In 2 B is the shift gate 23 by means of the switching device 24 pushed into an active position. In this position, the front surface of the shift gate has 23 Contact with the upper roll 26 of the cam follower 25 , The curve follower 25 thus rolls on the shift gate 23 from. Because the shift gate 23 has a well-defined position in the on state, this device is without fault tolerances and repeatable between the predetermined strokes of the Hubkulisse 22 and the shift gate 23 switchable.

In the 3a and 3b is an alternative embodiment of the conveyor drum according to the invention 10 shown in detail. In this case, there are two fixed lifting scenes 22 . 29 intended. Instead of a shift gate 23 is now a switchable curve follower 30 intended. In the embodiment according to 3a . 3b has the curve follower 30 a single role 31 on an axis 32 on. In a first position of the cam follower 30 rolls the roll 31 of the cam follower 30 on the surface of the first lift gate 22 from.

In the switched state according to 3b enters the role 31 of the cam follower 30 in contact with the surface of the lift gate 29 , Also in this case, a quick and precise switching between two predetermined strokes is achieved with simple means.

In 4 is a schematic representation of an unrolling a section of a conveyor drum according to the invention 10 shown. The rod-shaped articles of the tobacco processing industry (not shown) are in the arrow direction 52 transversely promoted. To promote the article, the conveyor drum 10 carriage 53 . 53 ' . 53 '' . 53 ''' on, each taking pictures 54 . 54 ' . 54 '' . 54 ''' for the articles. In the pictures 54 . 54 ' . 54 '' . 54 ''' are schematically through points outputs of Saugluftkanälen for holding rod-shaped articles in the recordings 54 . 54 ' . 54 '' . 54 ''' indicated.

Every sled 53 . 53 ' . 53 '' . 53 ''' is on two guide rods each 55 . 55 ' respectively. 55 '' . 55 ''' stored.

The conveyor drum 10 is through two side walls 50 . 50 ' limited. In the sidewall 50 are guide rods 55 ' . 55 ''' by means of anchorages 58 ' . 58 ''' anchored. In the sidewall 50 ' are guide rods 55 . 55 '' by means of anchorages 58 . 58 '' attached. On the attachment side have the guide rods 55 . 55 ' . 55 '' . 55 ''' each feathers 59 . 59 ' . 59 '' . 59 ''' on, by means of which they are spring loaded.

The conveyor drum 10 also has lifting scenes 51 . 51 ' on. The guide rods 55 . 55 '' on the side wall 50 ' anchored, have curve follower 57 . 57 '' on, on the side wall 50 ' opposite Hubkulisse 51 roll. To ensure safe rolling on the lift gate 51 to ensure the guide rods 55 . 55 '' spring-loaded.

Conversely, the guide rods 55 ' . 55 ''' standing at the side wall 50 anchored and there are spring preloaded, conclude with curves 57 ' . 57 ''' provided, on the opposite Hubkulisse 51 ' roll. The lift scenes 51 . 51 ' are offset from each other in height, so that, for example, the Hubkulisse 51 not with the guide rods 55 ' . 55 ''' collided.

Neighboring sledges 53 . 53 ' respectively. 53 '' . 53 ''' are each with two guide rods 55 . 55 ' respectively. 55 '' . 55 ''' connected, so that squares of each two carriages 53 . 53 ' and 53 '' . 53 ''' and two guide rods 55 . 55 ' and 55 '' . 55 ''' arise. The sledges 53 . 53 ' respectively. 53 '' . 53 ''' are each anchored 60 . 60 ' respectively. 60 '' . 60 ''' and a plain bearing 61 . 61 ' . 61 '' . 61 ''' equipped, the arrangement of anchoring 60 . 60 ' . 60 '' . 60 ''' and plain bearings 61 . 61 ' . 61 '' . 61 ''' in each couple is over cross. In this way, the sledges complete 53 . 53 '' the stroke of the lift gate 51 after and the sledges 53 ' . 53 ''' the stroke of the lift gate 51 ' ,

Because the successive guide rods 55 . 55 ' . 55 '' . 55 ''' in the conveying direction 52 the item are offset from each other, it is for compliance with one about an axis of symmetry 56 symmetrical longitudinal axial displacement of the article necessary that the lifting scenes 51 . 51 ' in the conveying direction 52 the items are shifted a bit against each other. For example, the curve follower rushes 57 ' the curve follower 57 a little ahead. In order to set the same stroke symmetrically, the cam profile of the lift gate lops 51 ' the curve profile of the lift gate 51 about the same distance ahead.

In the course of the promotion of the articles in the conveying direction 52 is, as indicated by the dashed arrows, the distance between the subsidized articles increased by means of the lifting device according to the invention.

10

conveyor drum

11

control flange

12

control ring

13

guide rod

14

carriage

15

admission

16 16 '

attachment

17

carriage

18

admission

19

bearings

20

axis of symmetry

21

bearings

22

lifting slot

23

shift gate

24

switching

25

cam follower

26 27

role

28

axis

29

lifting slot

30

switchable cam follower

31

role

32

axis

50, on 50 '

lateral wall

51 51 '

lifting slot

52

conveying direction

53-53 '' '

carriage

54-54 '' '

admission

55-55 '' '

guide rod

56

axis of symmetry

57-57 '' '

cam follower

58-58 '' '

anchoring

59-59 '' '

feather

60-60 '' '

anchoring

61-61 '' '

bearings

Claims (17)

Conveyor drum ( 10 ) for rod-shaped articles of the tobacco-processing industry with a lifting device ( 22 . 23 . 29 ; 51 . 51 ' ) for longitudinal axial displacement of in at least one row transversely of the conveyor drum ( 10 ) conveyed articles, wherein the lifting means ( 22 . 23 . 29 ; 51 . 51 ' ) is variable from a first predetermined stroke to a second predetermined stroke, characterized in that the lifting means ( 22 . 23 . 29 ; 51 . 51 ' ) a first lift gate ( 22 ; 51 . 51 ' ) for the first predetermined stroke and a second stroke scenery ( 23 . 29 ; 51 . 51 ' ) for the second predetermined stroke. Conveyor drum ( 10 ) according to claim 1, characterized in that the first lift gate ( 22 ; 51 . 51 ' ) and / or the second lift gate ( 23 . 29 ; 51 . 51 ' ) as a shift gate ( 23 ) are formed. Conveyor drum ( 10 ) according to claim 1 or 2, characterized in that a, in particular mechanical or electrical or magnetic, switching device ( 24 ) is provided. Conveyor drum ( 10 ) according to one of claims 1 to 3, characterized in that recordings ( 15 . 18 ; 54 . 54 ' . 54 '' . 54 ''' ) are provided for the articles, the images ( 15 . 18 ; 54 . 54 ' . 54 '' . 54 ''' ) are designed to be displaceable longitudinally to the orientation of the article. Conveyor drum ( 10 ) according to claim 4, characterized in that at least one receptacle ( 15 . 18 ; 54 . 54 ' . 54 '' . 54 ''' ) on a longitudinally axial to the alignment of the article movable carriage ( 14 . 17 ; 53 . 53 ' . 53 '' . 53 ''' ) is arranged. Conveyor drum ( 10 ) according to claim 4 or 5, characterized in that the receptacle ( 15 . 18 ; 54 . 54 ' . 54 '' . 54 ''' ) and / or the carriage ( 14 . 17 ; 53 . 53 ' . 53 '' . 53 ''' ) on at least one longitudinally to the alignment of the article movable guide rod ( 13 ; 55 . 55 ' . 55 '' . 55 ''' ) are arranged. Conveyor drum ( 10 ) according to claim 6, characterized in that the guide rod ( 13 ; 55 . 55 ' . 55 '' . 55 ''' ) a curve follower ( 25 ; 57 . 57 ' . 57 '' . 57 ''' ), by means of which a cam profile of the first lift gate ( 22 ; 51 . 51 ' ) and / or a cam profile of the second lift gate ( 23 . 29 ; 51 . 51 ' ) in changes in the stroke position of the guide rod ( 13 ; 55 . 55 ' . 55 '' . 55 ''' ) and / or recording ( 15 . 18 ; 54 . 54 ' . 54 '' . 54 ''' ) and / or the carriage ( 14 . 17 ; 53 . 53 ' . 53 '' . 53 ''' ) can be implemented or implemented. Conveyor drum ( 10 ) according to claim 7, characterized in that the curve follower ( 25 ; 57 . 57 ' . 57 '' . 57 ''' ) from the first lift gate ( 22 ; 51 . 51 ' ) to the second lift gate ( 23 . 29 ; 51 . 51 ' ) and / or from the second lift gate ( 23 . 29 ; 51 . 51 ' ) to the first lift gate ( 22 ; 51 . 51 ' ) is switchable. Conveyor drum ( 10 ) according to one of claims 6 to 8, characterized in that the Füh rod ( 13 ; 55 . 55 ' . 55 '' . 55 ''' ) by means of a spring ( 58 . 58 ' . 58 '' . 58 ''' ) and against the first lift gate ( 22 ; 51 . 51 ' ) and / or the second lift gate ( 23 . 29 ; 51 . 51 ' ) is or will be pressed. Conveyor drum ( 10 ) according to claim 9, characterized in that the spring ( 58 . 58 ' . 58 '' . 58 ''' ) on the curve follower ( 25 ; 57 . 57 ' . 57 '' . 57 ''' ) opposite end of the guide rod ( 13 ; 55 . 55 ' . 55 '' . 55 ''' ) is arranged. Conveyor drum ( 10 ) according to one of claims 6 to 10, characterized in that a first receptacle ( 15 ; 54 . 54 '' ) and / or a first carriage ( 14 ; 53 . 53 '' ) with a first guide rod ( 13 ; 55 . 55 '' ) are firmly connected. Conveyor drum ( 10 ) according to claim 11, characterized in that a second receptacle ( 18 ; 54 ' . 54 ''' ) and / or a second carriage ( 17 ; 53 ' . 53 ''' ) with a second guide rod ( 55 ' . 55 ''' ) are firmly connected. Conveyor drum ( 10 ) according to claim 11 or 12, characterized in that the first receptacle ( 15 ; 54 . 54 '' ) and / or the first carriage ( 14 ; 53 . 53 '' ) with the second guide rod ( 55 ' . 55 ''' ), the first recording ( 15 ; 54 . 54 '' ) and / or the first carriage ( 14 ; 53 . 53 '' ) by means of a sliding bearing ( 61 . 61 '' ) of longitudinal axial movements of the second guide rod ( 55 ' . 55 ''' ) are decoupled. Conveyor drum ( 10 ) according to one of claims 11 to 13, characterized in that the second receptacle ( 18 ; 54 ' . 54 ''' ) and / or the second carriage ( 17 ; 53 ' . 53 ''' ) with the first guide rod ( 13 ; 55 . 55 '' ), the second receptacle ( 18 ; 54 ' . 54 ''' ) and / or the second carriage ( 17 ; 53 ' . 53 ''' ) by means of a sliding bearing ( 19 ; 61 ' . 61 ''' ) of longitudinal axial movements of the first guide rod ( 13 ; 55 . 55 '' ) are decoupled. Conveyor drum ( 10 ) according to one of claims 12 to 14, characterized in that the conveyor drum ( 10 ) a first lifting means ( 51 ) and a second lifting means ( 51 ' ), wherein the first lifting means ( 51 ) for longitudinal axial displacement of the first guide rod ( 13 ; 55 . 55 '' ) is formed and the second lifting means ( 51 ' ) for longitudinal axial displacement of the second guide rod ( 55 ' . 55 ''' ) is trained. Conveyor drum ( 10 ) according to claim 15, characterized in that the lifting means ( 51 . 51 ' ) for symmetrical longitudinal axial displacement of the first guide rod ( 13 ; 55 . 55 '' ) and / or the first recording ( 15 ; 54 . 54 '' ) and / or the first carriage ( 14 ; 53 . 53 '' ) on the one hand and the second guide rod ( 55 ' . 55 ''' ) and / or the second recording ( 18 ; 54 ' . 54 ''' ) and / or the second carriage ( 17 ; 53 ' . 53 ''' ) on the other hand about an axis of symmetry ( 20 . 56 ) are formed. Machine of the tobacco processing industry with at least one conveyor drum ( 10 ) according to one of claims 1 to 16.