DE102006027597A1 - Method for operating a stranding machine and stranding machine - Google Patents

Abstract

The invention relates to a method for operating a strand machine of the tobacco-processing industry. The invention further relates to a rod making machine of the tobacco processing industry. The method according to the invention is characterized in that strand material (107, 117) is jerked onto a suction strand conveyor (17, 106) for starting the strand machine and it is detected whether the suction strand conveyor (17, 106) is filled with a predeterminable amount of strand material (107, 117 ), an additive (101) is supplied to the strand material (107, 117) in the region of the suction strand conveyor (17, 106) and in the case in which the suction strand conveyor (17, 106) is not supplied with a predeterminable amount of strand material (107 , 117), no supply of an additive takes place. The strand machine according to the invention comprises a first sensor (118, 118 ') which detects the occupancy of a suction strand conveyor (17, 106) with strand material (107, 117).

Description

The The invention relates to a method for operating a stranding machine and a stranding machine of the tobacco processing industry.

Out WO 2005/096851 A1 discloses a method and a device for Production of a smokable article, in which tobacco is puffed up and an extrudate is formed, wherein the extrudate is on the quenched Tobacco is applied, known.

From the DE 33 11 886 C2 For example, there is known a process for producing a cigarette in which an admixture of expanded tobacco pulp is applied to a tobacco layer. In addition, it is disclosed that the expandable tobacco pulp may also be provided with a flavorant, for example menthol.

From the EP 0 405 929 A2 is intended to add a liquid strand with additives to cigarette rods, wherein a nozzle is arranged in the region of a Aufschauerbereichs of tobacco, which serves to introduce the fluid into the tobacco.

It is the object of the present invention, a stranding machine of Tobacco processing industry and a method of operating a Strangmaschine the tobacco-processing industry indicate by means derer even when adding an additive a uniform and homogeneous fiber strand, for example from tobacco fibers or from filter material fibers, can be produced. It should also be possible to have a long service life to achieve the stranding machine.

Is solved This object is achieved by a method for operating a stranding machine the tobacco processing industry, wherein, in particular for start-up the stranding machine, strand material aufauern on a Saugstrangförderer is and is detected, whether the Saugstrangförderer with a predefinable Amount of strand material is occupied, wherein in the event that the Saugstrangförderer with the predetermined amount of strand material is occupied, an additive is supplied to the strand material in the region of Saugstrangförderers and in the case in which the Saugstrangförderer not with the predeterminable Amount strand material is occupied, no supply of an additive takes place. As a result, a very uniform strand can be produced and at the same time at startup or in operation as well as at Shutdown or except Operate the strand machine to ensure that components the stranding machine, for example, the Saugstrangförderer and for example, a suction belt arranged on Saugstrangförderer, not be contaminated with the additive, so that the Significantly increase service lives of the stranding machine.

Of the Additive comprises or is preferably a fluid or an extrudate. The additive may be, for example, a pasty mass which is under pressure from an additive feed device, for example, a nozzle, forced out or -sprayed. The additive can be finely atomized may be, however, also as a contiguous strip or in shape of stripe pieces or smaller chunks or particles or splashes are present. Especially means in the context of this invention in the event that no supply of additive takes place, that in particular no additive on the strand material or parts of the strand machine is delivered. It is also possible when starting the stranding machine, including in particular in the Under the invention, commissioning the strand machine to understand is only then to provide the supply of additive when extruded material on the Saugstrangförderer is arranged.

Especially is at an interruption of the operation or shutdown of the Stranding machine and the supply of additive interrupted or Additive in a container delivered or no additive available.

Preferably the additive is not until shortly before the connection until at the latest for connecting a gluing of a material surrounding the strand material Material strip fed to the strand material.

Preferably the additive will be available at the latest fed to the strand material at a time in which the strand material in a strand guide device is detected.

Preferably The additive is added at a time between the activation a gluing of a material surrounding the strand material strip and activating a Strandabschlägers fed to the strand material. Of the Strangabschläger is usually then used when the strand produced the desired Has properties and transferred for further processing in the processing process should.

Preferably In the case of producing a wrapping material strip, the additive becomes free Strand at the latest then fed to the strand material, in which a skein striker is activated.

If in the conveying direction of the strand material upstream of the feed of the additive is detected to the strand material, if the suction belt conveyor is covered with strand material, it is very well prevented that the Saugstrangförderer comprising For example, a suction belt is not polluted because no or substantially no additive can reach the Saugstrangförderer. The detection upstream of the supply of the additive to the strand material is particularly well-suited to determine quickly enough whether strand material is placed on the suction belt conveyor.

Preferably the predeterminable amount of strand material can be designed in such a way that in the presence of strand material on the Saugstrangförderer the Add additive and in the case where no strand material is placed on the suction belt conveyor is, also no intake of additive takes place. The predefinable Quantity can also be a layer of strand material, which is essentially opaque, in which therefore the Saugstrangförderer essentially completely with the material is covered.

Preferably becomes the strand material in the area of the additive feed, in particular, immediately downstream of a fuel feed device, checks whether a a stop causing irregularity in the strand material, that on the Saugstrangförderer is present, is present, in the presence of such irregularity the additive supply is interrupted or additive in one receptacle is delivered. Such an irregularity is also called choke designated. These are lumps or accumulations of the strand material, which can lead to stoppers.

If at a Strangmaschinenstopp a Strangmaschinenstopp causing Signal serves to interrupt the additive supply or additive in a collection container is given in a strand machine stop prevents that Parts of the strand machine are contaminated.

Instead of the detection of a sufficient amount of strand material or A predeterminable amount of strand material is when starting the stranding machine also possible, wait a predetermined time, then the additive then the Strand material supplied becomes.

Preferably The strand material comprises isolated fibers of tobacco or filter material.

The Task is further processed by a rod maker of the tobacco Industry solved with a first sensor, the occupancy of a Saugstrangförderers detected with strand material, wherein a device for supplying Additive (additive feed device) to that on the Saugstrangförderer arranged strand material is provided. By the strand machine according to the invention Is it possible, at the right time an additive to the strand material add. The additive feed device is preferably downstream of the first sensor arranged at the time or the moment of feeding from additive to the strand material.

If a second sensor is provided to impart irregularities in the on the Saugstrangförderer To detect strand material leading to a stop of the stranding machine to lead can the feeder to be stopped by additive in time to the amount of not to reduce more usable strand material.

Preferably a control device is provided with the first sensor and / or the second sensor is connected and which the Zusatzstoffzuführvorrichtung controls. Preferably, the strand material comprises fibers of tobacco and / or filter material.

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 schematic side view of a part of a strand machine according to the invention,

2 a schematic sectional view of the device according to the invention 1 in a tilted position of 90 °,

3 a schematic sectional view of the device according to the invention 1 in a tilted by 90 ° top view, and

4 a schematic three-dimensional view of a stranding machine.

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.

1 shows a schematic side view of a portion of a strand machine according to the invention of the tobacco-processing industry, wherein by a suction channel 113 who in 2 is shown, only one side wall or channel wall 103 is shown. At the canal wall 103 is an additive supply device, namely a nozzle device in this case 102 with a nozzle body 115 intended, the one nozzle opening 110 comprising a fluid 101 flows. The fluid 101 may be a binder, flavor, or other agent, for example, supplied to tobacco or filter material. It can also be an extrudate, as a pasty mass from the nozzle opening 110 is pushed out and possibly fogged.

A fibrous material, such as tobacco or filter fibers, is fed by suction through a suction chute 113 to a suction belt 106 sucked. The suction belt 106 is moving in the 1 from right to left in Saugbandförderrichtung 109 , As a result, it forms from a quencher fibers 107 existing fiber fleece on the Aufschauerfläche 116 , The fibers 117 Granules or powders may also be added.

As in this embodiment, the nozzle device 102 in the suction channel 113 protrudes, is the transport air flow 108 From section in the suction channel 113 curved. The fibers 117 are also indicated schematically. In 2 is the embodiment of 1 shown in a rotated by 90 ° schematic sectional view. In the 2 is additionally the second channel wall 105 shown opposite the nozzle device 102 a recess 104 having. The recess 104 serves, no narrowing of the suction channel 113 in the area of the nozzle device 102 provided. The recess is in the conveying direction of the fibers 117 First, the cross section of the channel 113 expanding and then to the suction belt 106 Rejuvenated out again. This results in a convex bulge in the channel wall 105 ,

3 shows the embodiment 1 in a schematic plan view in a sectional view tilted 90 ° down. The transitions of the bulge may be contrary to the illustration 1 be formed without edges.

To a fluid 101 in, for example, introduce a tobacco rod, is a nozzle or nozzle device 102 in the one channel cheek or channel wall 103 and a pocket or recess 104 in the opposite channel cheek or channel wall 105 incorporated. The device should be designed so that the tobacco already hatched 107 on the suction belt 106 and the further shudder is not or not substantially affected.

Here, preferably, the nozzle device 102 on the less streamed from the tobacco stream or material flow channel wall 103 attached or arranged. For suction ducts or when using suction ducts 113 in combination with fluid bed conveyors, which are not shown, this is done in particular by centrifugal forces, through which the material flow more or less clinging to one side.

The nozzle device 102 can as partially flowed volume body, such as in the examples of 1 to 3 be formed or as a capillary or as a combination of a partially flowed or full flowed volume body with a capillary, which is not shown. Through the capillary tube, a better backflow of an introduced fluid is made possible.

The used nozzle devices are preferably extrusion die devices.

As in 1 is further shown schematically, the Aufauerte and provided with additive strand material 107 in the direction of the arrow 109 a format device 126 fed after the nonwoven fabric 107 was trimmed as usual. For this purpose, the nonwoven fabric is applied to a wrapping strip 121 , for example, made of paper, filed on a format tape 127 into the format device 126 enters. In the format device 126 becomes the strand material with the wrapping strip 121 wrapped, the serving strip 121 is completely wrapped around the strand material and glued, possibly cured and, if the strand is proper, by the Strandabschläger 122 cut to length, so that the provided at the moment of knocking upstream of the Abschlagägers strand can be fed to further processing.

In 2 is a first sensor 118 shown, which detects whether a sufficient amount of strand material 107 on the suction belt 106 has woken up. The sensor 118 can, as it is in 2 and 3 is shown in the channel wall 105 be integrated. It can also be a corresponding sensor 118 ' be provided, which also detects whether a sufficient amount of strand material on the suction belt 106 has woken up. The first sensor 118 ' is, however, in the nozzle body 115 the nozzle device 102 integrated. The first sensor 118 ' is upstream of the nozzle opening 110 arranged. There are also sensors 119 and 119 ' provided to detect the irregularities in the strand material, which can lead to a stop of the strand machine, for example due to congestion of the strand material during insertion into the format device. It may be sufficient, only one first sensor each 118 . 118 ' and a second sensor 119 . 119 ' provided.

The signals of the sensors 118 . 118 ' . 119 . 119 ' become a control device 120 fed to the nozzle device 102 controls. This is indicated by dashed lines. The control device 120 also controls the operation of a collection container 123 or a suction device, which ensures that negative pressure in the collecting container 123 , egg a suction tube 125 and the suction hole 124 prevails in the area of the nozzle opening 110 Ensures that the fluid 101 through the suction hole 124 , the suction pipe 125 in the collection container 123 arrives.

The invention is particularly suitable for preventing or largely avoiding that strand material provided with an additive, for example a tobacco rod, gets into the weft, for example a shredder. For this purpose, the startup times and stop times are to be adjusted to the connection and disconnection of the additive feed. The connection is preferably made when the strand on a prismatic rail following the Strandabschläger 122 is detected, behind a measuring head, which measures the properties of the tobacco rod.

To contamination of the suction belt 106 To avoid this, no additive may be added to the empty suction belt when starting or stopping 106 reach. For this purpose, the Saugbandbelegung a suitable sensor 118 . 118 ' queried. A sensor 119 . 119 ' directly behind the nozzle 102 respectively. 110 should recognize so-called chokes and terminate the additive addition immediately upon detection of such chokes.

4 shows a schematic three-dimensional representation of a stranding machine, which is in particular a tobacco rod machine, by means of which a cigarette rod or tobacco rod is produced.

From a lock 1 a pre-distributor is charged in portions with, for example, tobacco. A removal roller 3 of the pre-distributor 2 fills a storage container 4 with tobacco, from which a steep conveyor 5 Takes out tobacco and a stowage 6 controlled feeds. Out of the stowage 6 takes a pin roller 7 a uniform stream of tobacco coming from a knockout roll 8th from the pins of the pin roller 7 knocked out and on a circulating at a constant speed stray cloth 9 is thrown.

One on the jar 9 formed tobacco fleece is in a viewing device 11 Thrown, which consists essentially of an air curtain, the larger or heavier tobacco particles happen, while all other tobacco particles from the air into one of a pin roller 12 and a wall 13 formed funnel 14 be steered.

From the pin roller 12 The tobacco is in a tobacco channel 16 against a rope conveyor 17 or Saugstrangförderer 17 hurled at which the tobacco held by means sucked into a vacuum chamber air and a tobacco rod is aufauert. A leveling agent 19 or trimmer 19 removed excess tobacco from the tobacco strand, which then on a run in synchronized cigarette paper strip 21 is placed. The cigarette paper strip 21 is from a reel 22 deducted, by a printing unit 23 guided and on a driven format tape 24 placed.

The format tape 24 transports the tobacco rod and cigarette paper strip 21 through a format 26 by removing the cigarette paper strip 21 is folded around the tobacco rod, so that still protrudes an edge which is glued by a Glimapparat, not shown in a known manner. Then the seam is closed and from a Tandemnahtplätte 27 dried.

An educated cigarette rod 28 goes through a strand density meter 29 , which is preceded by a strand guiding device or in which a strand guiding device is integrated. The strand density meter 29 controls the leveler 19 or trimmer 19 , The cigarette rod 29 gets from a knife apparatus into double-length cigarettes 32 cut. The double-length cigarettes 32 be from a controlled arms 33 having transfer device 34 a takeover drum 36 a filter attachment machine 37 pass on their cutting drum 38 they are shared with a circular knife in single cigarettes.

conveyor belts 39 . 41 promote excess tobacco into one under the reservoir 4 arranged container 42 from which the recycled tobacco from the steep conveyor 5 is removed again.

Usually is accumulating fiber material during arrival and departure of a Stranding machine returned to the fiber material to be processed. By The invention avoids that provided with additive fiber material is attributed which is an important criterion for is a consistent fiber strand quality.

1

lock

2

preliminary distributor

3

out roller

4

reservoir

5

vertical conveyor

6

accumulating shaft

7

pin roll

8th

picker roller

9

stray cloth

11

OverviewAmenitiesPicture

12

pin roll

13

wall

14

funnel

16

tobacco channel

17

suction rod

18

Vacuum chamber

19

trimmer

21

Cigarette paper strip

22

reel

23

printing unit

24

format tape

26

format

27

Tandemnahtplätte

28

cigarette rod

29

Strand density meter

31

knife apparatus

32

double long cigarettes

33

poor

34

Transfer device

36

transfer drum

37

filter attachment

38

cutting drum

39, 41

conveyor belt

42

container

101

fluid

102

nozzle device

103

channel wall

104

recess

105

channel wall

106

suction belt

107

aufgeschauerte fibers

108

Transport airflow

109

Saugbandförderrichtung

110

nozzle opening

113

suction well

115

nozzle body

116

Aufschauerfläche

117

fibers

118 118 '

sensor

119 119 '

sensor

120

control device

121

wrapping strip

122

Strangabschläger

123

receptacle

124

Absaugbohrung

125

suction tube

126

format device

127

format tape

Claims (14)

Method for operating an extrusion machine of the tobacco-processing industry, wherein, in particular for starting the stranding machine, strand material ( 107 . 117 ) to a suction belt conveyor ( 17 . 106 ) and it is detected whether the Saugstrangförderer ( 17 . 106 ) with a predeterminable amount of strand material ( 107 . 117 ), in which case the suction belt conveyor ( 17 . 106 ) with the predeterminable amount of strand material ( 107 . 117 ), an additive ( 101 ) to the strand material ( 107 . 117 ) in the region of the Saugstrangförderers ( 17 . 106 ) and in the case where the suction belt conveyor ( 17 . 106 ) not with the predeterminable amount of strand material ( 107 . 117 ), no supply of the additive takes place. Process according to claim 1, characterized in that the additive ( 101 ) shortly before switching on until the latest time for the purpose of connecting a gluing of a strand material ( 107 ) enveloping strips of material ( 121 ) the strand material ( 107 ) is supplied. A method according to claim 1, characterized in that the additive 101 at the latest at a time to the strand material ( 107 ) to which the strand material ( 107 ) in a strand guiding device ( 29 ) is detected. Process according to claim 3, characterized in that the additive ( 101 ) at a time between the connection of a gluing of a strand material ( 107 ) enveloping strips of material ( 121 ) and activating a Strandabschlägers ( 122 ) the strand material ( 107 ) is supplied. Process according to claim 1, characterized in that the additive ( 101 ) in the case of the production of a strand material strip-free strand at the latest at the moment the strand material ( 107 ), in which a Strandabschläger ( 122 ) is activated. Method according to one of claims 1 to 5, characterized in that in the conveying direction ( 109 ) of the strand material ( 107 ) upstream of the feed of the additive ( 101 ) to the strand material ( 107 ) is detected, whether the Saugstrangförderer ( 17 . 106 ) with strand material ( 107 ) is occupied. Method according to one of claims 1 to 6, characterized in that in the region of the additive supply to the strand material ( 107 ), in particular immediately downstream stream of an additive feed device ( 102 . 110 . 115 ) is checked to determine whether there is an irregularity in the strand material ( 107 ) mounted on the suction belt conveyor ( 17 . 106 ) is present, wherein in the presence of such an irregularity, the feed additive is interrupted or additive ( 101 ) in a collecting container ( 123 ) is delivered. Method according to one of Claims 1 to 7, characterized in that, in the case of a strand machine stop, a signal causing the strand machine stop serves to interrupt the supply of additive or additive ( 101 ) in a collecting container ( 123 ). Method according to one of claims 1 to 8, characterized in that the strand material ( 107 . 117 ) comprises isolated fibers of tobacco or filter material, and / or that the additive comprises or is an extrudate. Extrusion machine of the tobacco processing industry with a first sensor ( 118 . 118 ' ), the assignment of a Saugstrangförderers ( 17 . 106 ) with strand material ( 107 . 117 ), wherein a device ( 102 . 110 . 115 ) for supplying additive ( 101 ) (Additive feed device) to that on the suction belt conveyor ( 17 . 106 ) arranged strand material ( 107 ) is provided. Rope according to claim 10, characterized in that the Zusatzstoffzuführvorrichtung ( 102 . 110 . 115 ) downstream of the first sensor ( 118 . 118 ' ) is arranged. Strand machine according to claim 10 or 11, characterized in that a second sensor ( 119 . 119 ' ) is provided to prevent irregularities in the suction belt conveyor ( 17 . 106 ) applied strand material ( 107 ), which lead to a stop of the strand machine. Stranding machine according to one of claims 10 to 12, characterized in that a control device ( 120 ) provided with the first sensor ( 118 . 118 ' ) and / or the second sensor ( 119 . 119 ' ) and the additive feed device ( 102 . 110 . 115 ) controls. Rope according to one of claims 10 to 13, characterized in that the strand material ( 107 . 17 ) Comprises fibers of tobacco and / or filter material and / or that the additive comprises or is an extrudate.