DE102009046666A1 - Cutting knife of a tobacco cutter - Google Patents

Abstract

The invention relates to a cutting knife of a tobacco cutter for tobacco preparation, the cutting knife having a serrated cutting structure. The cutting knife is further developed in that the cutting knife has a plurality of cutting knife bodies (16.1 to 16.5, 26; 40.1, 40.2, 42), the cutting knife bodies (16.1 to 16.5, 26; 40.1, 40.2, 42) being releasably arrangeable one above the other or next to one another, see above that the serrated cutting structure can be or is formed. The invention also relates to a tobacco cutter for tobacco preparation and a use of a cutting knife for cutting tobacco material. The invention also relates to a cutting knife body (16.1 to 16.5, 26; 40.1, 40.2, 42) for a cutting knife of a tobacco cutter in tobacco preparation and the use of one or more cutting knife bodies (16.1 to 16.5, 26; 40.1, 40.2, 42).

Description

The invention relates to a cutting blade of a tobacco cutter of tobacco preparation, wherein the cutting blade has a serrated cutting structure. Furthermore, the invention relates to a tobacco cutter of tobacco preparation and a use of a cutting blade for cutting tobacco.

Moreover, the invention relates to a cutting blade body for a cutting blade of a tobacco cutter of tobacco preparation and a use of one or more cutting blade body.

In EP-A-0 872 189 a tobacco cutter is disclosed which has a motor-driven knife drum and motor-driven, consisting of two converging to the knife drum press chains existing press conveyor. In this case, tobacco is compacted into a tobacco cake by the press conveying means, wherein on the output side of the press conveying means a knife drum provided with knives is arranged in order to cut tobacco tobacco from the tobacco cake and to remove it. The knife drum formed as a cutting device consists of a cylindrical drum rotatable about its main axis, on whose circumference several, for example, eight, knives are arranged at the same distance from each other.

Furthermore, in DE-T-694 16 417 as in WO-A-2004/080215 and US Pat. No. 6,595,216 various cutting knives of knife drums of the tobacco processing industry in tobacco preparation for cutting smokable material such. As tobacco, tobacco ribs, tobacco sheet and / or cloves, which are compacted into a cake disclosed.

Based on this prior art, it is an object of the present invention to improve a cutting device of the tobacco-processing industry, the production cost and the design effort should be as low as possible.

This object is achieved by a cutting blade of a tobacco cutter of tobacco preparation, wherein the cutting blade has a serrated cutting structure, which is further characterized in that the cutting blade has a plurality of cutting blade body, wherein the cutting blade body one above the other and / or side by side releasably in or on at least one holding device for the cutting blade body can be arranged or arranged, so that the serrated cutting structure can be formed or formed.

The invention is based on the idea that a multi-part cutting blade of a knife drum of a tobacco cutter is provided from a plurality of cutting blade bodies, wherein the detachable cutting blade body are arranged so as to give a serrated or crenellated cutting contour or cutting structure of the entire cutting edge of the cutting blade. Here, the individual cutting blade body are arranged one above the other and / or side by side releasably, wherein the cutter blades are fixed or held by means suitable means or means for use in cutting devices on the cutterhead to form the multi-part cutting blade with a serrated cutting contour. In this case, at least one holding device is provided for the individual cutting blade bodies, so that the cutting blade bodies are detachably connected to the holding device or, in order thereby to easily exchange the cutting blade bodies after use or wear. In the context of the invention, in particular a holding device for a plurality of cutting blade body is advantageous because, for example, a retaining strip or the like with several, especially with all, cutting blade bodies is releasably connected and for a predetermined period of use. It is also conceivable that a holding device is provided for each cutting blade body, in order to fix or hold it

By providing or combining a plurality, preferably one-piece, cutting blade body and the at least one holding device for the cutting blade body, by means of which the cutting blade bodies are held or fixed on a cutterhead of a tobacco cutter, a cutting blade according to the invention with a serrated cutting contour by a corresponding arrangement the cutting blade body side by side and / or produced one above the other. In other words, the cutting blade according to the invention with the serrated cutting contour in the invention comprises a plurality of cutting blade body and at least one holding device for the cutting blade body.

By disposing the cutting edges of the cutting blade bodies staggered and juxtaposed to form a serrated cutting structure of the entire cutting edge, using the cutting blade of the present invention, it is possible to provide a desired tobacco fiber length when cutting the tobacco cake with the tobacco cutter reach, wherein a plurality of individual cutting blade bodies are arranged over the width of the knife.

For this purpose, it is provided in one embodiment that when arranging the individual cutting body knife next to each other along the serrated cutting structure two juxtaposed cutting blade body have different thicknesses and / or that when arranging cutting blade bodies one above the other two superimposed cutting blade body have different Schneidmesserschnittkantenlängen. This makes it possible to form a desired tooth-like cutting structure or cutting contour of the entire cutting blade with a corresponding arrangement of differently shaped cutting blade body. In particular, two or more types of cutting blade bodies are used to form the serrated cutting structure, and the two types of cutting blade bodies used differ with respect to the thicknesses and / or the length of the cutting blade cutting edges.

In particular, in a preferred development, the cutting blade bodies are connected or connectable to one, in particular common, holding device at the end regions or ends facing away from the cutting edge of the cutting blade body, so that the cutting blade bodies are fixed or held at their rear end by the holding device or a corresponding holder become. In particular, a common holding device or a common holder for a plurality of cutting blade body is provided, which is releasably connected to the various arranged cutting blade bodies or is.

Moreover, it is possible in a further embodiment of the cutting blade that the cutting blade body at the end facing away from the cutting edge end portions or ends holding structures, in particular recesses or protrusions, in particular engaged with form and functionally complementary attachment structures or attachments one or the holding device brought or brought. For this purpose, the holding device for the cutting blade body corresponding projections or noses, which can be introduced into, for example dovetail-like bulges of the cutting blade body, whereby a secure positioning of the cutting blade body during operation and during assembly of the cutting blade is achieved from a plurality of cutting blade bodies. In particular, the holding device or the holder is slidably disposed on a cutterhead of the cutting device, so that the multi-part cutting blade, consisting of several different cutter blades, is brought by means of a corresponding feed or a drive or the like after a grinding operation in a corresponding cutting position to tobacco fibers accordingly with a predetermined average tobacco fiber length from a tobacco cake in operation to cut.

In addition, a preferred embodiment of the cutting blade is characterized in that the cutting blade body each have the same cutting surface angle. As a result, re-sharpening of the cutting blade or the cutting blade body is facilitated by a corresponding grinding device on a cutterhead with the cutting blades.

In particular, the cutting surface angles of the juxtaposed or stacked cutting blade body in the same plane are arranged or arranged, so that the cutting blade body or the cutting blade can be easily reground. In particular, on the cutterhead with the cutting blade according to the invention, a cavity throat or cavity bar is provided with a serrated arrangement of the cutter blade body inverse and functional or complementary shape, serrated contour, so that the cutting blade according to the invention rests on the bottom of the cavity strip and is arranged. For this purpose, the fillet strip or cavity strip on the cutterhead has corresponding elevations or depressions on which the cutting knife bodies rest.

In addition, it is favorable in a development, when the cutting blade is or is assembled from at least two types of cutting blade bodies, wherein under a cutting blade body of a first type a plurality of cutting blade body of a second type are arranged and wherein the cutting blade body of the second type at predetermined lateral intervals along the serrated cutting structure are arranged to each other or are.

In order to form a regular or irregular serrated cutting contour of a cutting blade according to the invention, it is possible within the scope of the invention that the cutting blade bodies are arranged symmetrically or asymmetrically and / or that the cutting blade bodies have the same or different, preferably lateral, predetermined distances from one another and / or that the cutting blade bodies have the same or different lengths cutting edges at their front ends.

In addition, the object is achieved by a tobacco cutter of tobacco preparation with at least one cutting blade, as described above. To avoid repetition, reference is made to the above statements. Here are one or more cutting blades on one Knife drum formed or arranged a tobacco cutter.

Furthermore, the object is achieved by a cutting knife body for a cutting blade of a tobacco cutter tobacco preparation, in particular as described above, with a cutting edge for cutting tobacco, which is further developed in that the cut edge width is smaller than the length of the cutter blade body.

For this purpose, it is further provided in an embodiment of the cutting blade body, that the cutting blade body is connectable at the end region or end facing away from the cutting edge in each case with a holding device for the cutting blade body.

In particular, it is expedient for the cutting knife body, at the end region or end remote from the cutting edge, to have a holding structure, in particular a recess or a bulge or a projection, which can be brought into engagement, in particular, with a form-fitting and functionally complementary fastening structure of a holding device.

Furthermore, the object is achieved by a use of one or more, described above individual, cutting blade body for producing a cutting blade of a tobacco cutter of tobacco preparation. To avoid repetition, reference is expressly made to the above statements. Preferably, a plurality of individual cutting blade bodies are used in combination with at least one holding device for one or more cutting blade bodies in order to produce or provide a cutting blade with a serrated cutting contour for a tobacco cutter or in tobacco preparation.

In addition, the object is achieved by using a cutting blade for cutting tobacco or smokable material such. As tobacco, tobacco ribs, tobacco sheet and / or cloves in a tobacco cutter of tobacco preparation, wherein the cutting blade is formed as described above. To avoid repetition, reference is also expressly made to the above statements.

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

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

1 schematically a perspective view of a knife drum, wherein the individual components of a cutting blade are shown in the manner of an exploded view, and

2 schematically a view of the knife drums in the assembled state.

3 schematically a cutting blade with a serrated cutting contour with several juxtaposed cutting blade bodies.

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

In 1 is schematically a knife drum 10 a tobacco cutter shown, with the individual parts that make up the cutterhead 10 is composed, are shown schematically in the manner of an exploded view.

The knife drum 10 consists of a polygonal drum body rotatable about its main axis 12 , are arranged on the circumference of a plurality of cutting blades, each with a serrated cutting contour at the same distance from each other. At the in 1 illustrated embodiment of the cutterhead 10 is the drum body 12 formed octogonal, so that on the circumference of the drum body 12 eight multi-part cutting blades can be arranged at the same distance from each other. For this purpose, the drum body 12 over the circumference, preferably flat, knife support surfaces fourteen auf, on which an inventive, multi-part and composite cutting blade is arranged or positioned.

In addition, it may be provided in one embodiment of a knife drum of a tobacco cutter tobacco preparation that four or two cutting blades according to the invention are arranged on the cutterhead. Moreover, in the context of the invention, the cutting blade may be formed with a regular or irregular cutting contour. Here, the cutting blade body may be arranged, for example, symmetrical or asymmetrical and have different or equal length cutting edges. Farther the individual cutting blade bodies can be arranged uniformly or unevenly.

On the support surface fourteen become several narrow knife bodies 16.1 to 16.5 placed next to each other, with the knife body 16.1 to 16.5 be arranged at predetermined intervals next to each other. This is done between the narrow knife bodies 16.1 to 16.5 formed a corresponding gap. The width of the knife body 16.1 to 16.5 and the distance of the knife body 16.1 to 16.5 are determined by a predetermined, desired tobacco fiber length of a tobacco to be cut.

The knife body 16.1 to 16.5 are cut in a simple rectangular shape, with the respective leading edge 18.1 to 18.5 or cutting edge of the knife body 16.1 to 16.5 forward or in the direction of rotation of the cutterhead 10 point.

The knife body 16.1 to 16.5 have at their rear end, ie at the one of its leading edge 18.1 to 18.5 or cutting edge each end facing away from each a dovetail-like recess 19.1 to 19.5 on, in which the noses 21.1 to 21.5 a holding device for the knife body 16.1 to 16.5 and 26 trained retaining strip 20 be introduced.

The trained as a knife carrier retaining strip 20 also has holes 22 , in the projections of the on the bearing surface fourteen provided feed brackets 24 intervention. The feed brackets 24 are arranged linearly displaceable, whereby, for example, after a grinding operation of a cutting blade, the cutting blade is brought with its cutting contour to the outside in the desired cutting position.

On the spaced knife body 16.1 to 16.5 becomes another knife body 26 hung up, over a leading edge 28 or cutting edge has. The knife body 26 covers all narrower knife bodies 16.1 to 16.5 , wherein the knife body 26 loose on the knife body 16.1 to 16.5 is hung up. The knife body 26 has on its back over two outer recesses 29.1 . 29.2 , which are also dovetail-shaped, so that the recesses 29.1 . 29.2 in shape and function complementary engagement with the projections 21.1 and 21.5 the holder or the retaining strip 20 to be brought.

By connecting the knife body 16.1 to 16.5 as well as the knife body 26 with the retaining strip 20 will be an exact positioning of the knife body 16.1 to 16.5 such as 26 on the support surface fourteen achieved, with a lateral displacement of the knife body 16.1 to 16.5 . 26 is prevented. In addition, an unwanted falling out of the knife body 16.1 to 16.5 . 26 prevented. Also, the on the knife body 16.1 to 16.5 . 26 transmitted acting cutting force, causing the rigidity of the upper knife body 27 the stability of the retaining strip 20 and thus the knife body 16.1 to 16.5 supported.

According to the invention there is no direct connection of the lower knife body 16.1 to 16.5 and the upper knife body 26 , Alternatively, in the context of the invention after production or provision of the individual knife body 16.1 to 16.6 and the, preferably one-piece, knife body 26 a connection of the individual knife bodies 16.1 to 16.5 . 26 for producing a cutting blade according to the invention with a serrated cutting contour to form a positive connection or material connection or a frictional connection possible.

After arrangement of the knife body 16.1 to 16.5 and the upper knife body 26 on the lower knife bodies 16.1 to 16.5 is on the thus formed in several parts cutting blade according to the invention with a serrated cutting contour a knife holder plate 32 attached to the top, causing the knife body 16.1 to 16.5 as well as the knife body 26 held together.

Below the knife body 16.1 to 16.5 is in the area of the serrated cutting edge of a through the knife body 16.1 to 16.5 as well as the knife body 26 trained cutting blade one according to the width of the knife body 16.1 to 16.5 Hollow fillet provided with depressions or elevations 34 in the area of the serrated cutting contour of the knife body 16.1 to 16.5 and the arranged thereon broad knife body 26 formed multi-part cutting blade of a drum body 12 arranged.

Due to the inventive design of the cutting blade body 16.1 to 16.5 . 26 and the retaining strip formed as a holding device 20 , Thus, the entire cutting blade according to the invention, as well as the knife holder plate 32 is a particularly simple replacement of the cutting blade body 16.1 to 16.5 . 26 possible if they are worn out.

In 2 is a schematic view of the in 1 illustrated components of the cutterhead 10 shown in the assembled state, for reasons of clarity, the cover plate 32 and the upper-side knife body 26 are shown broken.

In 3 schematically is a partial view of another embodiment of a illustrated cutting blade, wherein the multi-part cutting blade with a serrated cutting contour of two different types of knife bodies 40.1 . 40.2 and 42 is formed. Here are alternately different thickness knife body 40.1 and 42 arranged side by side, so that a serrated cutting contour is formed at the front. According to this embodiment, the arrangement of different knife bodies 40.1 . 42 . 40.2 side by side formed a multi-part cutting blade according to the invention, wherein the blade angle α or cutting surface angle α of the various knife body 40.1 . 40.2 and 42 correspond to each other.

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

LIST OF REFERENCE NUMBERS

10

knife body

14

bearing surface

16.1-16.5

knife body

18.1-18.5

leading edge

19.1-19.5

recess

20

retaining strip

21.1-21.5

projections

22

hole

24

feed bracket

26

knife body

28

leading edge

29.1, 29.2

recess

32

Retaining plate

34

Beading profile

40.1, 40.2

knife body

42

knife body

α

blade angle

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 0872189A [0003]
• DE 69416417 T [0004]
• WO 2004/080215 A [0004]
• US 6595216 B [0004]

Claims (13)

Cutting knife of a tobacco cutter of tobacco preparation, wherein the cutting knife has a serrated cutting structure, characterized in that the cutting knife a plurality of cutting blade body ( 16.1 to 16.5 . 26 ; 40.1 . 40.2 . 42 ), wherein the cutting blade body ( 16.1 to 16.5 . 26 ; 40.1 . 40.2 . 42 ) one above the other and / or side by side detachable on or in at least one holding device ( 20 ) are arrangeable, so that the serrated cutting structure can be formed or formed. Cutting blade according to claim 1, characterized in that when arranged the cutting blade body ( 40.1 . 40.2 . 42 ) juxtaposed along the serrated cutting structure two juxtaposed cutting blade body ( 16.1 to 16.5 . 26 ; 40.1 . 40.2 . 42 ) have different thicknesses and / or that when arranging cutting blade bodies on top of each other, the two superimposed cutting blade body ( 16.1 to 16.5 . 26 ) different cutting knife cutting edge lengths ( 18.1 to 18.5 . 28 ) exhibit. Cutting blade according to claim 1 or 2, characterized in that the cutting blade body ( 16.1 to 16.5 . 26 ; 40.1 . 40.2 . 42 ) to that of the cutting edge ( 18.1 to 18.5 . 28 ) facing away from each end with a, in particular common, holding device ( 20 ) are connected or connectable. Cutting blade according to one of claims 1 to 3, characterized in that the cutting blade body ( 16.1 to 16.5 . 26 ; 40.1 . 40.2 . 42 ) to that of the cutting edge ( 18.1 to 18.5 . 28 ) end regions holding structures ( 19.1 to 19.5 . 29.1 . 29.2 ), in particular recesses ( 19.1 to 19.5 . 29.1 . 29.2 ) or bulges or protrusions, in particular in engagement with form and functionally complementary attachment structures ( 21.1 to 21.5 ) one or the holding device ( 20 ) are brought or brought. Cutting blade according to one of claims 1 to 4, characterized in that the cutting blade body ( 16.1 to 16.5 . 26 ; 40.1 . 40.2 . 42 ) each have the same cutting surface angle (α). Cutting blade according to one of claims 1 to 5, characterized in that the cutting surface angle (α) of juxtaposed or stacked cutting blade body 16.1 to 16.5 . 26 ; 40.1 . 40.2 . 42 ) are arranged or arrangeable in the same plane. Cutting blade according to one of claims 1 to 6, characterized in that the cutting blade consists of two types of cutting blade bodies ( 16.1 to 16.5 . 26 ; 40.1 . 40.2 . 42 ) is or is assembled, wherein under a cutting blade body ( 26 ) a first type a plurality of cutting blade body ( 16.1 to 16.5 ) of a second type are arranged, and wherein the cutting blade bodies ( 16.1 to 16.5 ) of the second kind are or are arranged at predetermined lateral distances from each other. Tobacco cutter of tobacco preparation with at least one cutting blade according to one of claims 1 to 7. Cutting blade body ( 16.1 to 16.5 . 26 ; 40.1 . 40.2 . 42 ) for a cutting blade of a tobacco cutter of the tobacco preparation, in particular according to one of claims 1 to 7, with a cutting edge ( 18.1 to 18.5 . 28 ) for cutting tobacco, characterized in that the cut edge width is smaller than the length of the cutter body. Cutting blade body according to claim 9, characterized in that the cutting blade body ( 16.1 to 16.5 . 26 ; 40.1 . 40.2 . 42 ) at the of the cutting edge ( 18.1 to 18.5 . 28 ) facing away from each end with a holding device ( 20 ) for the cutting blade body ( 16.1 to 16.5 . 26 ; 40.1 . 40.2 . 42 ) is connectable. Cutting blade body according to claim 9 or 10, characterized in that the cutting blade body ( 16.1 to 16.5 . 26 ; 40.1 . 40.2 . 42 ) at the of the cutting edge ( 18.1 to 18.5 . 28 ) end region a holding structure ( 19.1 to 19.5 . 29.1 . 29.2 ), in particular a recess ( 19.1 to 19.5 . 29.1 . 29.2 ) or a bulge or a projection, in particular in engagement with a form and functionally complementary attachment structure ( 21.1 to 21.5 ) a holding device ( 20 ) can be brought. Use of one or more cutting blade bodies ( 16.1 to 16.5 . 26 ; 40.1 . 40.2 . 42 ) according to one of claims 9 to 11 for the production of a cutting blade of a tobacco cutter of the tobacco preparation according to one of claims 1 to 7. Use of a cutting knife for cutting tobacco in a Tobacco cutter tobacco preparation, wherein the cutting blade is formed according to one of claims 1 to 7.

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