CN105831805B

CN105831805B - Method and device for producing filters in the tobacco processing industry

Info

Publication number: CN105831805B
Application number: CN201610071849.7A
Authority: CN
Inventors: F.吕克; A.法伊尔阿本德
Original assignee: Hauni Maschinenbau GmbH
Current assignee: Kolber Technology Co ltd
Priority date: 2015-02-02
Filing date: 2016-02-02
Publication date: 2020-09-15
Anticipated expiration: 2036-02-02
Also published as: EP3050442B1; CN105831805A; DE102015201781A1; EP3050442A1; JP2016140358A; PL3050442T3

Abstract

The invention relates to a method for producing filters in the tobacco processing industry, comprising the following method steps: -continuously feeding filter material (5) from a filter material store into a format device (7) for forming a continuous filter rod; -inserting an elongated and continuous insertion material (1), in particular a thread, which receives the liquid additive (19) into the filter material (5) during the transport of the filter material (5). The invention also relates to a corresponding device, comprising a filter material feeding device (7), wherein the filter material feeding device (7) comprises a guide section, by means of which the filter material (5) can be guided or guided. The device according to the invention is characterized in that a common feed device (2) which is inserted into the guide section is provided for inserting the elongated and continuous insertion material (1) and the additive (19), wherein the additive (19) can be applied to the insertion material (1) downstream of the outlet end (10) of the feed device (2).

Description

Method and device for producing filters in the tobacco processing industry

Technical Field

The invention relates to a method for producing filters in the tobacco processing industry, comprising the following method steps:

-continuously feeding filter material from a filter material store into a format device for forming a continuous filter rod;

-inserting an elongated and continuous insertion material, in particular a thread, which receives a liquid additive into the filter material during the transport of the filter material.

The invention also relates to a device for producing filters in the tobacco processing industry, comprising a filter material conveyor, wherein the filter material conveyor comprises a guide section, by means of which the filter material can be guided or guided.

Background

In the production of filters in the tobacco processing industry, it is desirable for some products to incorporate additives into the filter material. For this purpose, an insertion material which receives the additive and is of elongate and continuous design is usually inserted into the filter material and is impregnated or impregnated beforehand with the additive, for example a flavor.

EP 2178403B 1 provides a channel for this purpose, through which the additive substance is introduced and through which the fixed carrier is pulled, specifically in the case of successive sinking into the additive substance, in order to be able to receive the additive substance by the carrier.

EP 2046154B 1 sets up: a non-flavourant material filament material is introduced into a filter material and flavourant is delivered to the filter material as the filter rod is manufactured.

EP 2123180 a1 discloses a device for introducing additives into a rod which is provided for the production of tobacco products and has been circularly shaped, having a guide section through which the rod can be guided in a transport direction, and having a feed-in device which acts into the guide section and which feeds the additives downstream into the rod in the guide section, wherein the feed-in device is designed in such a way that it delivers the additive or additives in at least two jets which are directed at an angle to one another.

Disclosure of Invention

The aim of the invention is to enable a better and more accurate filling of a filter rod with an additive.

The invention is solved by a method for producing filters in the tobacco processing industry, comprising the following method steps:

-inserting an elongated and continuous insertion material, in particular a thread, which receives a liquid additive into the filter material while conveying the filter material;

-applying the additive to the insertion material while inserting the insertion material into the filter material, wherein

The additive is conveyed at least in sections separately from the insertion material in a common conveying device before application to the insertion material and/or the additive is applied to the insertion material at an application speed which substantially corresponds to or exceeds the conveying speed of the insertion material.

The additive can be applied to the insertion material in a targeted manner by conveying the additive and the insertion material in a common conveying device. Furthermore, according to the invention, the application of the additive at an application speed that substantially corresponds to the transport speed of the insertion material enables a better insertion of the additive into the insertion material, as a result of which a better through-saturation or full saturation of the insertion material with the additive can be achieved (Durchs ä ttiggung). The application speed preferably relates to the speed or the speed component present in the transport direction of the inserted material. Preferably, the speed or speed component is between 90% and 130% of the conveying speed of the insertion material, in particular between 95% and 120% of the conveying speed of the insertion material, particularly preferably between 100% and 110% of the conveying speed of the insertion material.

Preferably, the feeding speed of the insertion material corresponds to the feeding speed of the filter material.

Preferably, the application speed is controlled or regulated in relation to the feed speed of the insertion material. This enables an effective loading of the insertion material with an additive at any conveying speed of the conveying material.

Preferably, a segmented, parallel feed is provided in the case of separate feed of the additive and the insertion material. This makes it possible to realize a common transport mechanism which is of very small design, i.e. is constructed with a small cross section.

Preferably, the application of the additive to the insertion material takes place outside the common conveying means. In this way, the entire additive reaches the insertion material and possibly no additive which has entered the insertion material or which is attached to the insertion material reaches the filter material, which is arranged around the insertion material. In this way, an exact amount of additive can be specified in the filter rod to be completed. In this way, the additive is preferably applied when the insertion material is inserted into the filter material.

Preferably, the additive is transported completely separately from the insertion material in the common transport device before being applied to the insertion material. Preferably, the separate feed is arranged at least up to the output of the common feed.

Preferably, the filter rod is formed in a format device at or downstream of the application of the additive to the insertion material. In this case, the filter rod is usually designed in such a way that the filter material is inserted into the inlet nozzle of the format device. In this region of the inlet or in the region of the inlet finger in which the format device is present, an insertion material is preferably inserted centrally into the filter material and an additive is applied to the insertion material at the point where it is inserted into the filter material.

A strip of wrapping material is then usually wrapped around the filter material, particularly in a format device, and the seam of the strip of wrapping material is closed with an adhesive substance. Thereby forming a circular filter rod in cross-section. But may also constitute an oval shaped filter rod.

The amount of additive applied is preferably controlled.

Preferably, a plurality of additive supply lines are provided in the common supply device for controlling the amount of additive to be applied, wherein a predetermined number of additive supply lines can supply the additive in dependence on the amount of additive to be applied. In this case, for example, 10 additive supply lines can be provided and more or less additive supply lines can be opened or closed depending on the amount of additive to be applied.

Preferably, the additive transfer lines are arranged such that opposite additive transfer lines are always open. The additive is therefore always applied to the insertion material from the side opposite to the direction of application. Preferably, some of the additive delivery lines have a cross-section which is not in communication with other additive delivery lines, wherein the opposite additive delivery lines preferably have the same cross-section.

The additive is preferably fed through at least one nozzle for applying to the insertion material, wherein in particular an additive jet is generated which is fed onto the insertion material at an angle of 10 ° to 60 °, in particular 20 ° to 50 °, relative to the insertion material. This makes it possible to precisely set the contact point of the additive on the insertion material in the transport direction downstream of the outlet end of the common transport device.

The object is also achieved by a device for producing filters in the tobacco processing industry, comprising a filter material conveyor, wherein the filter material conveyor comprises a guide section, through which filter material can be guided or guided, wherein a common conveyor means inserted into the guide section is provided for inserting an elongated and continuous insertion material and additive, wherein the additive can be applied or applied to the insertion material downstream of the output end of the conveyor means. By the fact that the additive can be applied or applied to the insertion material downstream of the delivery device outlet, the additive can be dosed very accurately.

An additive feeder is preferably provided, by means of which the additive can be applied or applied to the insertion material at an application speed which substantially corresponds to or is greater than the feed speed of the insertion material. The additive feeder preferably has a control device or an adjusting device in order to control or adjust the application speed. For this purpose, a control or regulating device is supplied with a feed speed of the insertion material, which is determined by the feed speed of the filter material and corresponds essentially, for example, to the feed speed of the format belt in the format device, in order to set the corresponding additive feed speed by means of the control or regulating device.

A sensor for measuring the rate of addition is preferably provided. Alternatively, the velocity of the additive can be determined by the viscosity of the additive, the diameter of the feed line and the pressure provided by the pump, the viscosity of the additive being known via temperature measurement and knowledge of the additive itself or the viscosity-temperature relationship of the additive.

The additive feeder may have a pump which brings the additive out of the additive reservoir into one or more feed lines of the common feed device and feeds it at a corresponding pressure, so that the additive is discharged at a corresponding speed at the output of the common feed device.

The common conveying means is preferably designed to convey both the insertion material and the additive. Preferably, the common delivery device is designed as a tube with a continuous delivery line for the insertion material and the additive.

Preferably, the common conveying means for the insertion material and the additive have completely separate conveying channels, so that the insertion material and the additive can be conveyed in the common conveying means, so that the additive can be applied or applied to the insertion material only at the output of the common conveying means.

The tube has in particular a central supply line for the insertion material and a corresponding additive supply line or supply line for the additive, which extends around the outside of the supply line.

Preferably, at least two supply lines for the additive are arranged around a central supply line.

In particular, a plurality of, preferably more than three, feed lines are provided for the additive, wherein in particular an even number of feed lines are provided. The transport lines for the additives may also be provided for different additives. Various dimensions of the conveying line can also be provided, so that the dosing of the additive can be set better.

Preferably, the transport lines for the one or more additives are arranged symmetrically around the central transport line.

Preferably, a plurality of nozzles oriented at a predeterminable angle to the inserted material are provided on the outlet side of the supply line for the additive. This serves for a very targeted application of the additive to the insertion material. In this case, the nozzles are oriented in such a way that the additive jet directed onto the insertion material contacts the insertion material at the predeterminable angle. The predeterminable angle is preferably an angle of between 20 ° and 50 °.

The number of supply lines for the additive is preferably designed to be switched on or off.

Preferably one additive or a plurality of different additives may be used. The additive feeder can be designed such that, for different additives, the pump or the pump device simultaneously allocates these additives from different additive storage devices to the respective feed lines for the additives.

The filter material is preferably a filter tow. Preferably, the additive is a perfume. Also preferably, the insertion material is a thread or a filament.

The invention is characterized in that the insertion material and the additive are transported separately in a multinozzle pipe or tube. This newly designed tube, which may also be referred to as a common delivery mechanism, is used instead of the commonly used insertion tubules. In this case, the insertion material is guided in a central bore of the tube. The additive is guided through a plurality of small, circumferentially distributed channels or additive feed lines. In this case, the additive is applied in at least two opposite additive transport lines. The more additive that should be applied to the inserted material, the more channels are accessed. For example, two, four, six, eight, ten or twelve channels can be switched on. The additive is fed into these channels outside the format device of the filter rod maker.

The application of the additive to the inserted material takes place after or at the outlet from the tube.

The invention has the advantage that the additive is applied to the insertion material with a high pressure, which leads to an improved reception of the additive by the insertion material. The greatest possible accuracy of the amount of additive applied is achieved, since the application and the transport of the additive are purposefully set at the last possible point in time during the formation of the strand.

Further features of the invention are explained from the description of embodiments according to the invention with reference to the claims and the drawings. Embodiments according to the present invention may satisfy individual features or a combination of features.

Drawings

Without limiting the general inventive idea of the invention, the invention is described below by way of example with reference to the accompanying drawings, to which reference is explicitly made with respect to all details according to the invention that are not set forth in detail in the text. Wherein:

fig. 1 shows a schematic view of a part of a format device of a rod maker in the tobacco processing industry;

FIG. 2 shows a schematic cross-sectional view of a delivery mechanism according to the present invention;

FIG. 3 shows a schematic cross-sectional view through another embodiment of a transport mechanism according to the invention; and

fig. 4 shows a cross-sectional view along section line a-a of fig. 3.

In the drawings, each identical or similar element and/or portion is denoted by the same reference numeral, thereby avoiding repetitive description.

Detailed Description

Fig. 1 schematically shows a part of a format device 7 of a rod maker in the tobacco processing industry. The filter material 5, for example filter tow material, is introduced after the respective collation in the direction of movement B through a hopper device 6 into a format device 7. The format device 7 has a first format upper part 7a, which comprises the funnel device 6, and a second format upper part 7b, which for example comprises an inlet finger 8. The inlet finger 8 presses the inserted filter material 5 against a not shown format belt which is guided through the format device 7 in the direction of movement B.

A strip of wrapping material is usually arranged on the format belt, which is wrapped around the usually round filter material 5 in the format device 7, wherein the adhesive substance is provided at the adhesive seam at the end of the strip of wrapping material and thus closes the strip of wrapping material. A seaming panel (Nahtpl ä tte) is then engaged to accelerate the setting of the bonding substance, such as cement (abbonden), by heating or cooling. Finally, the filter material strip thus produced is cut to length with a filter rod of a correspondingly predefinable length.

In order to introduce an additive 19, for example a flavor, into the filter material 5, the thread 1 provided with an additive 19 is guided through a common transport means 2, for example a small tube, which is guided through the filter material 5 and whose output end 10 is arranged centrally in the filter material 5. The additive 19, for example a perfume, is transported from an additive storage 12 via a line 14 of the pump 11 and is introduced from the pump 11 via a line 14 into the common transport device 2. The thread 1 and the additive 19 are guided separately in the common transport means 2, to be precise in parallel, to the output 10 of the common transport means 2. The common conveying means 2 is explained more precisely in the following figures.

A control device 13 is also provided, which controls the pump 11, for example via an electrical line 15. The control device 13 can also preferably control valves which control the supply of the additive 19 to the additive line in the common feed device 2.

Fig. 2 shows the common conveying means 2 in a schematic view, in particular in a partial sectional view. An intermediate drilled or insertion material channel 16 is shown, in which the insertion material 1, for example a thread, is conveyed in the direction of movement B. A plurality of additive transport lines 17 are also provided, in which the additive 19 is transported, to be precise also in the direction of movement B. At the outlet end of the additive channel or feed line 17, a nozzle 18 is respectively shown, which is oriented in such a way that the nozzle additive 19 is applied to the thread 1 in an additive jet 20 at an angle α. In this embodiment, the angle α is 27 °.

In a further embodiment shown in fig. 3, the application angle α is greater, i.e. the nozzles 18 are oriented in such a way that a further application angle α results. The angle is here for example 47 °. It can be seen that the application position shown by the dotted line is arranged downstream of the outlet end 10 of the common transport device 2 in the direction of movement B or in the transport direction of the thread 1. It can also be seen that the additive 19 and the thread 1 are conveyed separately in the common conveying device.

Fig. 4 schematically shows a cross-sectional view along the section a-a of fig. 3. It can be seen here that the insertion material channel 16 is arranged centrally in the common conveying means 2 and that the additive channels 17 are arranged symmetrically around it. Eight additive channels 17 are shown. Fewer or more additive channels 17 may also be provided. More or fewer additive channels 17 may be used depending on the required amount. They can be switched on or off, for example, by means of valves. Preferably, opposite additive channels 17 are always used in order to apply an additive 19 to the filaments 1.

The cross-sections of the additive channels 17 may be of the same size or may also differ partly. It can be provided, for example, that two additive channels 17 are provided with a diameter of 0.11mm and the other additive channels 17 are provided with a cross-section of 0.2 to 0.4mm, in particular 0.35 mm.

The distance between the additive channel 17 and the outer periphery of the common transport means 2 is preferably one millimeter. The distance from the insertion material channel 16 is preferably also one millimeter. The insertion material channel 16 preferably has a diameter of three times the wire diameter, for example between 0.5 and 2mm or preferably 0.8 to 1.2 mm. A diameter of 3.6mm of the insertion material channel 16 is thus obtained with a wire diameter of 1.2 mm. The larger insertion material passage diameter compared to the wire diameter is achieved in that the wire may become knotted and this should then not lead to a standstill of the machine.

All the aforementioned features, as well as features which can be taken only from the drawings, and also features which are disclosed in combination with other features, are considered to be the gist of the present invention, both individually and in combination. Embodiments according to the present invention may be implemented by individual features or a combination of features. Within the framework of the invention, features indicated by "in particular" or "preferably" are understood as optional features.

List of reference numerals

1 filament

2 common conveying mechanism

3 turning section

5 Filter material

6 funnel device

7-format device

7a format top part

7b format top part

8 inlet finger

10 output terminal

11 Pump

12 storage device

13 control device

14 lines

15 electric circuit

16 insertion material passage

17 channel for additive

18 spray nozzle

19 additive

20 additive jet

Direction of motion B

Angle of application alpha

Claims

1. Method for producing a filter in the tobacco processing industry, comprising the following method steps:

-continuously feeding filter material (5) from a filter material store into a format device (7) for forming a continuous filter rod;

-inserting an elongated and continuous insertion material (1) which has received the liquid additive (19) into the filter material (5) during the transport of the filter material (5);

-applying the additive (19) to the insertion material (1) during insertion of the insertion material (1) into the filter material (5), wherein

-conveying the additive (19) in a common conveying device (2) at least in sections separately from the insertion material (1) before application to the insertion material (1), and wherein the additive (19) is applied to the insertion material (1) at an application speed which substantially corresponds to or exceeds the conveying speed of the insertion material (1), wherein a parallel section-wise conveying is provided in the case of separate conveying of the additive (19) and the insertion material (1).

2. Method according to claim 1, characterized in that the application speed is controlled or regulated in relation to the conveying speed of the insertion material (1).

3. Method according to claim 1, characterized in that the application of the additive (19) to the insertion material (1) takes place outside the common transport device (2).

4. Method according to claim 1, characterized in that the filter rod is formed in the format device (7) at or downstream of the application of the additive (19) to the insertion material (1).

5. Method according to claim 1, characterized in that the amount of additive (19) applied is controlled.

6. A method as claimed in claim 5, characterized in that a plurality of additive feed lines (17) are provided in the common feed device (2) for controlling the amount of additive (19) to be applied, wherein a predetermined number of additive feed lines (17) can feed additive (19) in relation to the amount of additive (19) to be applied.

7. Method according to claim 1, characterized in that the additive (19) is delivered through at least one nozzle (18) for application to the insertion material (1).

8. The method according to claim 7, characterized in that an additive jet (20) is generated, which is fed onto the insertion material (1) at an angle of 10 ° to 60 ° relative to the insertion material (1).

9. The method of claim 8, wherein the angle is between 20 ° and 50 °.

10. Method according to claim 1, characterized in that the insertion material (1) is a wire.

11. Device for producing filters in the tobacco processing industry, comprising a filter material conveyor (7), wherein the filter material conveyor (7) has a guide section, through which filter material (5) can be guided, wherein a common conveyor means (2) inserted into the guide section is provided for inserting an elongated and continuous insertion material (1) and an additive (19), wherein the additive (19) can be applied to the insertion material (1) downstream of an output (10) of the conveyor means (2), wherein the common conveyor means (2) is configured not only to convey the insertion material (1) but also to convey the additive (19), wherein the common conveyor means (2) is configured as a tube having a continuous conveying line (16) for the insertion material (1) and the additive (19), 17).

12. The device according to claim 11, characterized in that an additive conveyor (11) is provided, by means of which the additive (19) can be applied to the insertion material (1) at an application speed which substantially corresponds to or is greater than the conveying speed of the insertion material (1).

13. Device according to claim 11, characterized in that at least two feed lines (17) for the additive (19) are arranged around a central feed line (16).

14. An arrangement according to claim 13, characterized in that more than three transfer lines (17) are provided for the additive (19).

15. Device according to claim 14, characterized in that an even number of transport lines (17) is provided.

16. Device according to claim 11, characterized in that a nozzle (18) oriented at a predeterminable angle (α) relative to the insertion material (1) is provided on the outlet side of the feed line (17) for the additive (19).

17. Device according to claim 14, characterized in that the supply line (17) for the additive (19) is designed to be switched on or off.