KR20230095073A - Delivery devices in the tobacco processing industry - Google Patents

Abstract

The present invention relates to a rod-shaped article 22 of the tobacco processing industry from a strand machine in which rod-shaped articles of the tobacco processing industry are conveyed in a direction corresponding to the longitudinal axis of the article to a coupling machine in which rod-shaped articles are conveyed transversely with respect to its longitudinal axis. It relates to a delivery device in the tobacco processing industry for delivery. The conveying device has a conveyor member 17, by means of which the rod-shaped articles in the accommodating recesses of the receiving position in which the rod-shaped articles can be accommodated are tangentially aligned in the circumferential direction of the conveyor member, and also the cutting device 18 is provided, the conveyor member is used as a counter bearing for a cutting device, and a rotary conveyor device 19 is provided downstream of the conveyor member, the conveyor device conveying in the longitudinal axis direction from the conveyor member. It is designed to separate rod-shaped articles into the receptacle 29 in the longitudinal direction and to rotate the receptacle during rotation of the carousel device.

Description

Delivery devices in the tobacco processing industry

The present invention is for conveying rod-shaped articles of the tobacco processing industry from a strand machine in which rod-shaped articles of the tobacco processing industry are conveyed in a direction corresponding to the longitudinal axis of the article to a coupling machine in which rod-shaped articles are conveyed transversely with respect to the longitudinal axis of the article. It relates to delivery devices in the tobacco processing industry. The invention also relates to machines in the tobacco processing industry.

EP 1 164 878 B1 discloses a device for handling or transporting elongated objects, such as cigarettes or cigarillos, having a plurality of recessed receptacles for each object. Such a device, which may also be referred to as a spider, is used, for example, in the tobacco processing industry to convey cigarettes or other rod-shaped products from a longitudinal to a transverse direction of movement, which direction of longitudinal movement is the rod-shaped article. is along the longitudinal axis of , and the direction of transverse axial movement is transverse, in particular perpendicular to said longitudinal axis of the rod-shaped article. After guiding the rod-like articles from the spider to a device in which the rod-like articles are transported in the transverse direction, they are generally coupled in turn with other rod-shaped articles in the longitudinal axis, and a wrapping material wraps these articles. For example, in the so-called MAX, a filter segment twice as long as the usable length is inserted between two tobacco rods, rolled up with tipping paper, and then cut through the middle of the double-length filter segment, One of the two filter cigarettes is rotated 180°, the filter cigarettes are accordingly tested and inspected and then delivered to the mass flow. This MAX, which can also be referred to as a joining machine, is generally orthogonal to a strand machine where rod-shaped articles are cut to length. The transfer from the stranding machine to the joining machine is carried out in particular with a so-called spider.

EP 0 641 524 B1 discloses an installation of a machine for the tobacco processing industry, in which various elements of the machine are provided in a 180° installation. That is, first, strands are formed in one direction, rod-shaped articles are cut to a certain length from these strands, and then these articles are finally conveyed by transverse axial conveying, which is conveyed opposite to the conveying direction of the strands, using a conveying device. can

EP 2 997 839 B1 discloses a device and method for conveying rod-shaped articles of the tobacco processing industry from a longitudinal conveyor for longitudinal axial conveying of articles to a transverse conveyor for transverse axial conveying of articles and vice versa. . In this case, the longitudinal conveyor and the transverse conveyor are installed in a straight line with each other. A carrier member pivotable about a pivot axis is provided on the drum body. The carrier member is pivoted to change the alignment of the rod-like articles from longitudinal to transverse and vice versa.

The machines of the prior art require a relatively large amount of space and require relatively many machine elements to transfer the rod-shaped article from a longitudinal to a transverse conveying direction, ie from a strand machine to a joining machine.

The object of the present invention is to provide a delivery device for the tobacco processing industry and a machine for the tobacco processing industry that is overall smaller and requires fewer machine elements than the disclosed machine. In particular, the object of the present invention is a corresponding conveying device and machine for the tobacco processing industry that allow handling with less energy or air consumption and also more careful handling of the rod-shaped articles in the manufacture of rod-shaped articles in the tobacco processing industry. is to present

The object is that the conveyor member includes a receiving recess designed to receive rod-shaped articles in a receiving position, the receiving recess being tangentially aligned in a circumferential direction of the conveyor member, and a cutting device is provided, the conveyor The member is used as a counter bearing for the cutting device, and a rotary conveyor device is provided downstream of the conveyor member, the rotary conveyor device separating the rod-shaped articles conveyed in the longitudinal direction from the conveyor member in the longitudinal axis direction and the rotary conveyor device. Rod-shaped articles of the tobacco processing industry, which are designed to be accommodated in a receptacle of the device and which are improved by rotating the receptacle during rotation of the carousel device, after rotation the receptacle is designed to move transversely during rotation of the carousel member, are improved. It is solved by a conveying device in the tobacco processing industry for conveying rod-shaped articles of the tobacco processing industry from a strand machine conveyed in a direction corresponding to its longitudinal axis to a joining machine in which rod-shaped articles are conveyed transversely about its longitudinal axis.

With the measures according to the invention, it becomes possible to omit the conventional spider. Further, in an embodiment, it may be provided that the front-located strand machine does not have a cutting cutter or a cutting device for cutting the strands into rod-shaped articles, since cutting into rod-shaped articles can also be performed with a conveying device. Because. In particular, by means of the conveying device, rod-shaped articles, for example of the tobacco processing industry, are directly cut to a desired size in the conveying device, making it possible to omit a complicated conveying module.

Preferably the conveying device ensures that the rod-shaped article is held in the linear conveying direction from longitudinal to transverse conveying. Thus, the elements of the conveying device, eg the conveyor element and the carousel device, are arranged one after the other in a straight line in plan view. This makes it possible to arrange machines in the tobacco processing industry in a linear arrangement of a longitudinal conveyor, eg a strand machine, and a transverse conveyor, eg a joining machine.

In this case, the conveyor element preferably has a receiving recess or recesses for receiving rod-shaped articles arranged longitudinally along the circumference of the conveyor element. One accommodating recess preferably arranged continuously over the circumference of the conveyor element is provided, in this case for providing or holding in the accommodating recess a plurality of rod-shaped articles arranged one after another longitudinally along the circumference, in particular a plurality of of the inlet is provided. In this case, it may be provided that the receiving recess is a single receiving recess extending over the entire circumference of the conveyor member. Two or more accommodating recesses arranged parallel to each other may also be provided for accommodating two or more strand or rod-shaped articles conveyed in parallel along the longitudinal axis of the conveyor member. Two or more accommodating recesses arranged parallel to each other may be arranged continuously over the circumference of the conveyor member.

A 90° rotation of the receptacle of the carousel device is preferred.

It is preferable that one receptacle of the carousel device or two or more receptacles aligned in parallel of the carousel device are provided on the receptacle body, in particular as a radial axis for the carousel member. It can rotate 90° around the formed rotational axis.

A plurality of receptacle bodies are preferably arranged on the carousel device.

Preferably, the center of one receptacle of the receptacle body or the center between at least two receptacles of the receptacle body lies on the axis of rotation. As a result, rotation of the housing body is possible without causing center imbalance.

The conveyor element preferably has a slit for accommodating at least one cutter of the cutting device, in particular in the region of a receiving recess or receiving recesses for rod-shaped articles or articles. This enables a counter bearing for the cutting device in the conveyor element. In particular, this enables clean cutting of the rod-shaped article accommodated in the receiving recess.

It is also possible to accommodate the strand in relation to its downstream part in the receiving recesses or in one receiving recess, in order to cut the rod-shaped article to length and to continue transporting it after cutting.

Preferably the slit is wider than the thickness of the at least one cutter and/or has a predefined angle other than 90° from the tangent of the receiving recess for the rod-shaped article. Preferably the plane through the slit is a plane perpendicular to the tangent plane at an angle other than 90° to the tangent to the circumference of the conveyor member.

Preferably the cutting device comprises at least 2 cutters, in particular at least 4 cutters, in particular at least 6 cutters, in particular at least 8 cutters, in particular at least 10 cutters, in particular at least 12 cutters, in particular at least 14 cutters, in particular at least 16 cutters A cutter, especially a rotary cutter with 18 or more cutters, in particular 20 or more cutters, in particular 22 or more cutters. Preferably up to 24 cutters are provided. A cutter within the scope of the present invention may also be referred to as a cutting edge.

The cutter preferably has a hard metal cutting edge or is a hard metal cutting edge, in which case the material of the hard metal cutting edge is such that, in operation, the cutter, without abrasion of the cutter, produces at least 300,000 cuts each, in particular at least 400,000 cuts each, Preferably selected to allow for 500,000 cuts each. The material may be, for example, a metal matrix composite such as a tungsten carbide-cobalt hard alloy or a steel containing small diamond or cubic zirconia grains. A hard metal cutting edge for use according to the invention is described, for example, in DE 10 2020 120 576.7 filed on August 4, 2020. Preferably, the hard metal cutting edge has a hardness of 1400 to 2200 HV30, a bending strength of 3600 to 4400 MPa, and a particle size of the material of 0.2 to 1.3 μm.

The cutting device is preferably operable without an abrasive device.

Preferably the cutter has a thickness of 0.15 mm to 0.25 mm, in particular 0.18 mm to 0.22 mm.

Preferably the slits have a width of 0.25 mm to 0.35 mm, in particular 0.28 mm to 0.32 mm.

Preferably, the ratio of the slit width to the thickness of the cutter or cutting edge is between 1.4 mm and 1.6 mm.

If the conveyor element and/or the carousel device is designed as a drum, the conveying device is particularly process-stable. Drums of this type are basically open to the tobacco processing industry and are highly process reliable in that respect.

Preferably, the rotary conveyor device for rotating the receptacle has a cam control unit.

The cutter of the cutting device is preferably designed to perform an axial compensating stroke, preferably in a cam-controlled manner. By means of an axial compensating stroke, rod-shaped articles conveyed in a straight line can be conveyed continuously during cutting without accumulating or braking.

The above problem is solved by a machine of the tobacco processing industry having a strand machine, a conveying device according to the invention connected downstream of the strand machine or being part of the strand machine, and a joining machine connected downstream of the conveying device.

Preferably the joining machine is a filter attaching machine, a multi-segment filter machine, a multi-segment machine or a segment joining machine. For example, the bonding machine may be a machine that assembles heat-not-burn parts. A coupling machine within the scope of the present invention may also be referred to as a coupling device or coupling machine.

Preferably, the strand machine, conveying device and bonding machine are arranged one after the other in a straight line.

Cigarette rods, tobacco rods provided with metal bands for induction heating, filter segments, hollow segments as well as straws are suitable as rod-shaped articles conveyed to the bonding machine by means of a conveying device, preferably a strand machine.

According to the present invention, there is provided a machine for the tobacco processing industry in which a strand machine is coupled to a multi-segment machine in a straight line arrangement.

A transport module is usually used in the delivery, which is between the strand machine and the first filter feed module and receives the tobacco rods with metal bands, the so-called CLT segments. Tobacco rods may be provided at a predetermined pitch, eg 30pi pitch, may be tumbled, cut by two cutting units, eg into segments of 12 mm, stacked and pushed together. The tobacco rod may also be rotated by the drum so that the metal strip is in the correct position for cutting. The end face can then be inspected, for example using an optical system.

This conveying module can be omitted according to the invention, in which case only the conveying device according to the invention is used. For this purpose, for example, tobacco rods are cut directly on a strand machine to a predetermined dimension, for example 24 mm, or directly on a delivery device to a predetermined dimension, for example 12 mm. A delivery device can be implemented downstream of the discharge in the strand machine. Instead of a spider, which can also be referred to as a tube drive, a conveyor member is used that receives the rod-shaped article and directly transfers the cut double segments (eg 2 x 12 mm) to a preferably cam-controlled rotary conveyor member, which is a double segment. Rotate the segment or rod-shaped article 90°.

The rod-shaped article can then be transferred to an inspection- and/or pitch-changing drum with an optical inspection system. The rod-shaped article can then be delivered directly to the first feeding module of the joining machine. Of course, other lengths may be used instead of the specified length.

An advantage of the present invention is that the whole conveying module with various drums can be omitted, so the potential for cost reduction is high. Since the machine itself is designed to be relatively compact, it takes up much less space. Machines can be designed, for example, almost 2m shorter than usual. A smaller supply module is sufficient and consumes less energy and less air. Also, instead of two cutting systems, only one cutting system can be used. For example, a cutting cutter or cutter device may be omitted in the strand machine if the strands are guided directly to the conveying device. Since the rod-shaped article may be provided directly to a length suitable for further processing, no further cutting of the rod-shaped article is required in a joining machine subsequent to the conveying device.

Further features of the invention are presented in the description of embodiments according to the invention together with the claims and accompanying drawings. Embodiments according to the invention may fulfill individual features or a combination of several features.

The invention is then described by way of example with reference to the drawings, without limiting the general inventive idea, with explicit reference being made to the drawings for all details according to the invention not described in detail in the text.

1 is a schematic plan view of a machine according to the invention for the tobacco processing industry;
2 schematically shows a delivery device according to the invention;
Fig. 3 schematically shows an enlarged section of Fig. 2;
4 is a schematic three-dimensional view of a conveyor element and part of a cutting device;
5 is a schematic three-dimensional view of a part of a delivery device according to the invention;

Features characterized as “particularly” or “preferably” within the scope of the present invention are to be understood as arbitrary features.

In the drawings, elements and/or components that are the same or of the same type are provided with the same reference numerals, so that each is not presented again.

1 schematically shows a plan view of a machine 10 according to the invention for the tobacco processing industry.

The machine 10 according to the invention comprises a strand machine 11 , a conveying device 12 according to the invention and a combining machine 13 . In the stranding machine 11, for example wrapped tobacco strands are formed, into which a metal strip is inserted, preferably longitudinally, into which the metal strip is suitable for induction heating of tobacco segments made from the tobacco strand. do. Tobacco strands are formed into round or oval shapes in the formatting device 14 as usual and wrapped in wrapping material. A metal part before the formatting device 14 may be inserted into the tobacco cake, not shown in FIG. 1 for clarity. The conveying direction is shown at 25 .

The produced tobacco strands 15 are cut into rod-shaped articles 22 in FIG. 1 by a cutter device 16 . The rod-shaped article 22 is conveyed continuously in the longitudinal axial direction to the conveying device 12, where the article is handed over to the conveyor member 17 in the longitudinal axial direction. Conveyor element 17 can be designed as a conveyor drum as shown. A cutting device 18 having multiple cutters 36 is provided. For this purpose, reference is made to FIGS. 2 to 5 .

The rod-shaped article 22 is cut to length into two shorter rod-shaped articles 22 by a cutting device 18 . Subsequently, the rod-shaped articles 22 aligned longitudinally in the conveying direction 25 are conveyed to a carousel member 19, where they are transversely conveyed to the separating drum 20. rotated so that The separation drum 20 is a component of the conveying device 12 in this embodiment, but may also be a component of the joining machine 13 in an embodiment not shown.

ensuring that other rod-shaped articles are attached to the separating drum 20 or the conveying device 12, for example to the conveyor drum 21 of the joining machine 13 and, for example, to the manufactured rod-shaped articles 22 Additional members not shown are connected.

The strand machine 11, conveying device 12 and binding machine 13 are installed in a straight line. A compact structural shape is possible by means of the delivery device 12 comprising a small number of simple parts.

In the embodiment of FIG. 1 , a cutter device 16 is provided on the strand machine 11 . The cutter device preferably comprises half of the cutters of the cutting device 18 , the cutters being distributed over the circumference of the cutter device 16 . In an embodiment not shown, the strand machine 11 does not include a cutter device 16, and the cutting device 18 of the conveying device 12 cuts the strands 15 or strands into rod-shaped articles 22. used to

A single strand machine is also shown in the embodiment of FIG. 1 . However, the present invention is also feasible for double strand machines or multi-strand machines.

2 shows a schematic diagram of a delivery device 12 according to the invention. In FIG. 2 the rod-shaped article 22 is fed from the right in the conveying direction 25 to the conveyor member 17 and is received there in a receiving recess 27 clearly visible in FIG. 4 . The rod-shaped article 22 is supported in the receiving recess 27 and is cut by the cutting device 18 .

When feeding the rod-shaped article 22 to the delivery device, the rod-shaped article 22 is preferably cut halfway. The two rod-shaped articles 22 cut in the middle can be continuously conveyed by about 1/4 rotation of the conveyor member 17 in this longitudinal axial alignment, and the receiving portion body provided therein with the rotary conveyor member 19 ( 30). For example, when a two-row strand machine or a multi-row strand machine is provided, two or more parallelly provided rows of rod-shaped articles 22 can also be transferred.

The cutter device 16 shown in FIG. 1 may be omitted. In this case one strand or a plurality of strands reach the conveyor member 17 parallel to each other, where the cutting device 18 cuts the rod-shaped article 22 to length and cuts the rod-shaped to length. Only the article 22 continues to be conveyed. After the next cutting, the rod-shaped article 22 is cut to length again and continues to be transported in the same way.

However, in this embodiment, the rod-shaped article 22 is conveyed in the longitudinal axial conveying direction 25 and is cut into two rod-shaped articles 22 arranged longitudinally with each other, and in this arrangement, the carousel member 19 is guided to

In FIG. 3 a schematic diagram of an enlarged section of FIG. 2 is shown. The cutting state of the cutting device 18 penetrating the rod-shaped article 22 using the cutter 36 is shown. The cutting is made perpendicular to the longitudinal axis 26 of the rod-shaped article 22, so that two rod-shaped articles 22 are obtained after cutting.

The cutting device 18 has eight cutters 36 in this embodiment. It can also be seen in this figure that the conveyor element 17, designed as a conveyor drum, has a slit 35 through which the cutter 36 can enter. The cutters 36 are aligned to enable a smooth, straight cut of the rod-shaped article 22 during longitudinal axial feed. Preferably, the compensating stroke of the cutter 36 is made possible.

After cutting, the rod-shaped article 22 is continuously conveyed longitudinally in the circumferential direction 28 and guided longitudinally to the rotary conveyor member 19 . A much more accurate representation of the cut is shown in a schematic three-dimensional representation in FIG. 4 . From there, it can be seen that the receiving recess 27 is continuously formed over the circumference of the conveyor member 17 . It is also possible to provide a plurality of such accommodating recesses 27 , preferably two accommodating recesses 27 axially parallel to the circumference of the conveyor element 17 .

Figure 5 shows in a schematic three-dimensional representation the operation of a carousel member 19 designed as a carousel drum. The receptacle main body 30 has an accommodating portion 29 in which a rod-shaped article 22 or two rod-shaped articles 22 already cut in this embodiment are accommodated in the longitudinal axial direction. During the rotation of the rotary conveyor member 19 from the receiving position close to the conveyor member 17 to the delivery position close to the inspection drum 23, the housing body 30 is rotated by 90° about the rotational axis 31, so that the inspection When the rod-shaped articles 22 or rod-shaped articles 22 are delivered to the drum 23, they are conveyed in the transverse axial direction. For example, visual inspection of the rod-shaped article 22 is performed on the inspection drum 23 . Also here, stacking and transverse axial alignment of the rod-shaped articles 22 can take place in order to guide them thereafter to, for example, the separating drum 20 of the joining machine 13 .

Individual features disclosed alone and in combination with all of the foregoing features and in combination with other features shown only in the drawings are considered essential to the present invention. Embodiments according to the invention can be realized by means of individual features or a combination of several features.

10: machine in tobacco processing industry 11: strand machine
12: transmission device 13: combining machine
14: format device 15: strand
16: cutter device 17: conveyor member
18: cutting device 19: rotary conveyor member
20: separation drum 21: conveyor drum
22: rod-type item 23: inspection drum
25: transfer direction 26: longitudinal axis
27: receiving recess 28: circumferential direction
29: accommodating part 30: accommodating part body
31: axis of rotation 35: slit
36: cutter

Claims (17)

From a stranding machine (11) in which rod-shaped articles (22) of the tobacco processing industry are transported in a direction (25) corresponding to the longitudinal axis (26) of the article (22), the rod-shaped articles (22) along their longitudinal axis (26) A conveying device (12) in the tobacco processing industry for conveying a rod-shaped article (22) of the tobacco processing industry to a coupling machine (13) conveyed transversely for the tobacco processing industry, comprising:
The conveying device 12 has a conveyor member 17 and is also provided with a cutting device 18, the conveyor member 17 being used as a counter bearing for the cutting device 18, and the conveyor member ( A rotary conveyor device 19 is provided downstream of 17), and the rotary conveyor device separates the rod-shaped article 22 conveyed in the longitudinal axis direction from the conveyor member 17 in the longitudinal axis direction and the rotary conveyor device It is designed to be accommodated in the receptacle 29 of 19 and rotates the receptacle 29 during the rotation of the carousel device 19 after separation, so that after rotation the receptacle 29 rotates the carousel member 19 ), characterized in that it is designed to be moved in the transverse axis direction during the rotation of. 2. Transmission device according to claim 1, characterized in that a 90° rotation of the receptacle (29) of the carousel device (19) is provided. 3. The receptacle body according to claim 1 or 2, wherein one receptacle (29) of the carousel device (19) or at least two receptacles (29) aligned in parallel of the carousel device (19) are (30), characterized in that the receptacle body (30) is rotatable by 90° around an axis of rotation (31) formed in particular as a radial axis with respect to the carousel member (19). 4. Delivery device according to claim 3, characterized in that the center of one receptacle (29) of the receptacle body (30) or the center between at least two receptacles (29) lies on the axis of rotation (31). . 5. The method according to any one of claims 1 to 4, wherein the conveyor member (17) has a slit (35) for accommodating at least one cutter (36) of the cutting device (18), in particular for the rod-shaped article ( 22) or in the area of a receiving recess 27 or receiving recesses 27 for rod-shaped articles 22. 6. The method according to claim 5, wherein the slit (35) is wider than the thickness of the at least one cutter (36) and/or in advance other than 90° from the tangent of the receiving recess (27) for the rod-shaped article (22). A delivery device characterized in that it has a definable angle. 7. The cutting device ( 18 ) according to claim 1 , wherein the cutting device ( 18 ) comprises at least two cutters ( 36 ), in particular at least four cutters ( 36 ), in particular at least six cutters ( 36 ), in particular eight cutters ( 36 ). More than 10 cutters 36, especially 10 or more cutters 36, especially 12 or more cutters 36, especially 14 or more cutters 36, especially 16 or more cutters 36, especially 18 or more cutters 36 , in particular a rotary cutter with at least 20 cutters (36), in particular at least 22 cutters (36). 8. The method according to claim 7, wherein the cutter (36) has or is a hard metal cutting edge, the material being such that, in operation, the cutter (36), in particular without abrasion of the cutter (36), has at least 300,000 The delivery device, characterized in that it is selected to allow for one cut, in particular at least 400,000 cuts each, preferably 500,000 each cut. 9. Transmission device according to any one of claims 1 to 8, characterized in that the cutting device (18) is operable without an abrasive device. 10. Delivery device according to one of claims 7 to 9, characterized in that the cutter (36) has a thickness between 0.15 mm and 0.25 mm, in particular between 0.18 mm and 0.22 mm. 11. Delivery device according to claim 10, characterized in that the slit (35) has a width between 0.25 mm and 0.35 mm, in particular between 0.28 mm and 0.32 mm. 12. Conveying device according to one of claims 1 to 11, characterized in that the conveyor element (17) and/or the carousel device (19) are designed as or are drums. 13. Transmission device according to any one of claims 1 to 12, characterized in that the carousel device (19) for rotation of the receptacle (29) has a cam control. 14. Transmission device according to any one of claims 5 to 13, characterized in that the cutter (36) of the cutting device (18) is designed to perform an axial compensating stroke, preferably in a cam-controlled manner. . A strand machine (11), a conveying device (12) according to any one of claims 1 to 14 connected downstream of said strand machine (11) or being part of said strand machine (11) and said conveying device (12) A machine (10) of the tobacco processing industry with a joining machine (13) connected downstream of a ). 16. Machine according to claim 15, characterized in that the joining machine (13) is a filter attaching machine, a multi-segment filter machine or a segment joining machine. 17. Machine according to claim 15 or 16, characterized in that the stranding machine (11), the conveying device (12) and the combining machine (13) are arranged one after the other in a straight line.

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