CN111434249B - Device and method for dividing open width and device for producing strips - Google Patents
Device and method for dividing open width and device for producing strips Download PDFInfo
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- CN111434249B CN111434249B CN202010036841.3A CN202010036841A CN111434249B CN 111434249 B CN111434249 B CN 111434249B CN 202010036841 A CN202010036841 A CN 202010036841A CN 111434249 B CN111434249 B CN 111434249B
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- roller
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- blades
- deflector
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
- B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
- B26D1/14—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
- B26D1/24—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter coacting with another disc cutter
- B26D1/245—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter coacting with another disc cutter for thin material, e.g. for sheets, strips or the like
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
- A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
- A24C5/14—Machines of the continuous-rod type
- A24C5/28—Cutting-off the tobacco rod
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/18—Means for removing cut-out material or waste
- B26D2007/1809—Means for removing cut-out material or waste by stripping fingers
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- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Preliminary Treatment Of Fibers (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
- Manufacturing Of Cigar And Cigarette Tobacco (AREA)
Abstract
The invention relates to a device (11) for dividing an open width (6) of web material into a plurality of strips (14), the device (11) comprising a separating means (12) and a deflection means (13), wherein the separating means (12) comprise a first roller and a second roller (26, 28) which cooperates with the first roller, and wherein the outer sides (30, 32) of the rollers (26, 28) alternately have grooves (34) and blades (36) which are closed in the circumferential direction of the respective roller (26, 28) along an axial direction (A), and the blades (36) of the first roller (26) engage in the grooves (34) of the second roller (28) and the blades (36) of the second roller (28) engage in the grooves (34) of the first roller (26) in the region of action.
Description
Technical Field
The invention relates to a device for dividing a web of web material into a plurality of strips, comprising a separating device and a deflection device, wherein the separating device comprises a first roller and a second roller which cooperates with the first roller, wherein the outer side of the rollers alternately has circumferential grooves and blades which are closed in the circumferential direction of the respective roller in the axial direction, and wherein in the region of action the blades of the first roller engage in the grooves of the second roller and the blades of the second roller engage in the grooves of the first roller, and wherein the separating device is designed to divide the web into a plurality of adjacent strips, and wherein the deflection device comprises at least one deflection element, the webs of which are engaged in the grooves of the first roller or the second roller. The invention further relates to a device for producing a rod of the tobacco processing industry, comprising such a device for dividing open width.
The invention also relates to a method for dividing an open width of web material into a plurality of strips, in which method the open width is divided into a plurality of adjacent strips by means of a separating device comprising a first roller and a second roller which cooperates with the first roller, wherein the outer side of the roller alternately has encircling grooves and blades which are closed in the circumferential direction of the respective roller in the axial direction, and in the region of action the blades of the first roller engage into the grooves of the second roller and the blades of the second roller engage into the grooves of the first roller, wherein the strips are removed from the grooves of the first roller or the second roller by means of a deflecting device comprising at least one deflecting element, the webs of which are engaged into the grooves of the first roller or the second roller.
Background
An apparatus for producing strips is known, for example, from DE 1 954 036A, which comprises a separating mechanism for dividing the open width. The open width is cut into parallel strips by means of a knife-over-disk cutting device. The strips are then assembled into a strip and surrounded by a wrap. In the known apparatus, the open width of reconstituted tobacco material is processed. The manufactured and wrapped rod is cut into small pieces having a predetermined length, thereby enabling the manufacture of a rod-shaped smoking article.
From US 5,025,814 an apparatus is known which comprises a pair of cutting rolls for dividing an open width into a large number of strips. The apparatus also includes a guide comb positioned such that the tips of the comb extend into the gap between adjacent blades of the cutting roll. Furthermore, the device comprises a cleaning comb, the tips of which likewise engage in the grooves between the blades.
Disclosure of Invention
The object of the present invention is to specify a device and a method for dividing an open width and a device for producing strips, wherein the open width should be able to be divided reliably into individual strips.
This object is achieved by a device for dividing a web of web material into a plurality of strips, comprising a separating device and a deflection device, wherein the separating device comprises a first roller and a second roller which cooperates with the first roller, and wherein the outer side of the rollers alternately has circumferential grooves and blades which are closed in the circumferential direction of the respective roller in the axial direction, and wherein in the region of action the blades of the first roller engage in the grooves of the second roller and the blades of the second roller engage in the grooves of the first roller, and wherein the separating device is designed to divide a web into a plurality of adjacent strips, and wherein the deflection device comprises at least one deflection element, the webs of which are engaged in the grooves of the first roller or the second roller, wherein the device is improved in that: the at least one deflector element is partially configured as a plate-shaped deflector, which forms a closed surface downstream of the region of action of the separating means, which closed surface extends beyond the at least two webs in the axial direction.
In the case of dividing open webs of web material, in practice, the following is always the case: downstream of the region of action, the strip is caught in a groove between the blades of the roller and follows the direction of rotation of the roller. To avoid this, deflectors or combs are used, as is known for example from US 5,025,814, which guide the strip back from the bottom of the groove to the outer side of the roll. However, it has proven that the individual strips of such known deflectors are often not reliably guided. A possible consequence is a strip break, which leads to disturbances to the production process.
In the context of the present invention, it has been found that such disturbances to the production process can be effectively avoided by a plate-like deflector arranged downstream of the region of action of the separating means and configured as a closed surface. The individual strips produced by the separating means are guided over the surface of the plate-like deflector and can be further processed by means present downstream. The reliability of the device and the quality of the product, i.e. the mass of the strips, produced with the device can be improved.
The plate-like deflector of the deflection mechanism extends outside the roller. The position of the deflector can be understood from the following description. The deflection mechanism comprises at least one deflection element, in many cases two deflection elements, the parting bead of which extends partly in the groove between adjacent blades of the roll. These sections or areas of the division bar extend inside the cylindrical outer side of the roller. The outer circle Zhou Chengkai of the blades of the roller is the cylindrical outer side. The blade of the first roller supports the outer side face of the first cylinder, and the blade of the second roller supports the outer side face of the second cylinder. The first and second cylindrical outer sides overlap each other as seen in a cross section perpendicular to the axis of rotation of the roller. The axes of rotation of the rollers are oriented parallel to each other. They extend in the axial direction. The overlap area of the outer side of the cylinder should be referred to as the active area. The plate-like deflector is located outside and downstream of this region of action. The deflector is outside the roller, i.e. outside the area or space enclosed by the first and second cylindrical outer sides.
According to an advantageous embodiment, it is provided that the extent of the plate-shaped deflector in the axial direction is greater than or equal to the dimension of the active region in the axial direction. The plate-like deflector is thus dimensioned in the axial direction to be larger than the dimension of the active area of the separating means in this direction. It is thus ensured that the strip produced by the separating means does not fall down on the edge region of the plate-like deflector and may be lost for the subsequent production steps. Such a design of the plate-shaped deflector further improves the reliability of the device in terms of uninterrupted production.
According to a further advantageous embodiment, the device is improved by: the parting bead of the at least one deflection element is held on one side on the plate-shaped deflector and extends from the deflector into the groove of the first roller or the second roller in the direction of its respective free end.
In other words, the deflector elements are designed such that their webs are connected to one another only on the outlet side, i.e. by a deflector arranged downstream of the region of action, but are not connected to one another on the inlet side. The deflection element thus embodied is configured as a plate-like and closed structure only downstream of the region of action, which can be assembled significantly more easily. Thus, for example, the deflection element can be installed or can also be replaced without having to disassemble the roller of the separating mechanism or one of the two rollers of the separating mechanism. This is always necessary for devices which are closed not only on the inlet side but also on the outlet side. However, since this is not provided according to the mentioned embodiment, great advantages are produced in terms of assembly and maintenance of the device for dividing open width.
In addition, it is provided in particular that the spacer is constructed so that its height is considerably greater than its width when viewed in cross section, in order to impart the required mechanical stability thereto. This applies in particular to the deflector element formed according to the preceding embodiment, i.e. the deflector element whose webs are held on the plate-shaped deflector only on one side.
According to a further advantageous embodiment, it is provided that at least one of the webs of the at least one deflection element, in particular all webs of the at least one deflection element, and in particular all webs of all deflection elements, have a T-shaped cross section.
If a dividing plane is defined which is perpendicular to the shortest connecting line between the two axes of rotation of the rollers of the separating mechanism, the flat side of the T-shaped cross section is oriented in the direction of this dividing plane. If the T-shape is viewed with the T-shape written straight, the flat side referred to is the upper side of the T-shape. The cross section of the division bar is seen in a plane oriented transversely, in particular perpendicularly, to the longitudinal extension direction of the respective division bar. It is also in this plane that the division bar is viewed from the aforementioned features, whereby the division bar is designed to be greater in height than in width. The height of the division bar should be measured correspondingly in the direction towards the separating surface. In other words, the parting bead has a greater dimension in a direction perpendicular to the parting plane than in a direction parallel to the parting plane.
However, if the height of the division bar is configured to be greater than the width, accumulation of dirt or adhesion between the division bar and the groove side edge of the roller may easily occur when dividing a wet material, which in the worst case may jam the separating mechanism. The form of the spacer bar with a T-shaped cross section is advantageous because the portion of the spacer bar which is in contact with only the strip divided from the open width and presses the strip out of the groove of the roll fills almost the entire groove width. The portion adjoining further in the direction of the groove bottom is formed considerably narrower (seen in the axial direction of the roller), whereby dirt can no longer be caught so easily by the separating means. Likewise, dirt can fall out of the deflector in the direction of the groove bottom and can be removed, e.g., scraped, from the groove bottom, for example, with a downstream device.
The device is furthermore designed in such a way that the deflection means comprise a first and a second deflection element, which are arranged on opposite sides of the dividing plane, wherein the shortest connecting line between the first axis of rotation of the first roller and the second axis of rotation of the second roller is perpendicular to the dividing plane, wherein the two deflection elements are arranged on both sides of the dividing plane, in particular in mirror symmetry with respect to the dividing plane.
In particular, an asymmetrical configuration is also provided, in which the two deflection elements are not arranged mirror-symmetrically with respect to the dividing plane. For example, it is provided that one of the two deflectors is arranged closer to the separating surface than the other deflector. This can be in particular a deflector located geodetically lower. This deflector can for example be arranged in the immediate vicinity of the separating surface, i.e. in the immediate vicinity below it. The strip coming out of the separating means can thus be supported from below, so that it can be transported to further process steps more or less within the separating plane.
In particular, it is furthermore provided that the two deflectors are separated downstream, i.e. in the process direction, in a funnel-like manner. In this case, an asymmetrical arrangement can be provided, so that, for example, only the upper (geometrically higher) deflector of the two deflectors can be formed in a curved manner, so that a funnel-shaped expansion is obtained.
If the first roller and the second roller have the same radius, the dividing plane is as far from the first and second rotation axes. For rolls with different radii, the parting plane is closer to rolls with smaller radii. The first and second cylindrical outer sides intersect along two lines extending parallel to each other. The two lines lie in the dividing plane.
Thus, each roller is provided with a respective deflection element. The strip possibly present in the grooves between the blades due to the splitting process can be lifted from the associated roller by the respective deflecting element. The strip is then reliably guided over the first deflection element or the second deflection element.
Furthermore, according to a further embodiment, provision is made for the webs of the at least one deflection element to extend partially in the partial region of the groove of the first or second roller, wherein the plate-shaped deflector is connected downstream to the webs and all webs are connected to one another, and wherein in particular the plate-shaped deflector and the webs are integrally formed.
The plate-like deflector is downstream of the division bar. The division bar is partially downstream of the region of action. The parting bead, in abutment with the cylindrical outer side defined by the blade, transforms into a plate-like deflector. The plate-like deflector is here as close as possible to the outer side of the cylinder. However, the distance between the cylindrical outer surface and the plate-shaped deflector is only selected to be so small that a free rotatability of the associated roller about its axis of rotation is ensured.
In this case, it is particularly advantageous if the plate-shaped deflector and the spacer are formed integrally. For example, the deflecting element is made of one monolithic piece. The spacer is produced, for example, by making grooves in a flat component. The deflection element is therefore preferably constructed as a material-integrated structure. In addition, it is provided in particular that the deflection element is formed flat, i.e. completely flat. However, it is likewise provided that one or both deflection elements are formed in a curved manner. For example, the deflection element can be bent in such a way as to produce a funnel-shaped opening both on the inlet side and on the outlet side, when viewed in a cross section perpendicular to the axial direction. Upstream of the action zone, i.e. opposite to the material flow direction, this funnel widens in the feed zone. Downstream of the region of action of the separating means, i.e. in the material flow direction, the further funnel likewise widens.
According to another embodiment, the first and/or the second plate-like deflector comprises a further plate-like deflector upstream of the region of action. The plurality of webs of the first and/or second deflector element thus likewise extend in part in the partial region of the groove upstream of the region of action of the separating means and are converted into a further plate-shaped deflector at a further upstream position. The further plate-like deflector is connected upstream to the parting bead of the deflector element.
According to a further embodiment, provision is made for the at least one deflection element to be designed to apply a spring force acting in the direction of the dividing plane to the open web or to the strip, wherein a shortest connecting line between the first axis of rotation of the first roller and the second axis of rotation of the second roller is perpendicular to the dividing plane, wherein in particular the at least one deflection element is designed as a spring-elastic element and/or is supported in a spring-loaded manner.
In other words, the first deflection element is supported by applying a spring force in the direction of the second roller or by being spring-loaded in this direction. Accordingly, the second deflection element is supported by applying a spring force in the direction of the first roller or by being spring-loaded in this direction. The elastic force can be adjusted.
In particular, it is furthermore provided that the first and/or second deflection element is/are formed or supported in an adjustable manner and, more precisely, in an adjustable manner in the direction of the respectively opposite roller. The first and/or the second deflection element can thus be adjusted. They are fed all the way to the opposite roller so that the strip of web material is brought into abutment between the surface of the parting bead of the deflecting element and the outer end face of the blade. The material thickness of the web material is compensated by the spring action or the elastic support of the deflection element.
According to a further embodiment, it is provided that the at least one deflection element has at least one S-shaped deflection, viewed in a plane perpendicular to the axial direction. In particular, it is provided that the first and/or the second deflection element has a first S-shaped deflection (S-Schlag) in a first direction and a further S-shaped deflection in the opposite direction. Thus, for example, an enlarged inlet region (first S-shaped deflection), a region of the first and second deflection elements having a minimum distance from one another (between the first and second S-shaped deflection) and an enlarged outlet region (second S-shaped deflection) can be provided.
According to another embodiment, the device is improved by: further included is a scraping mechanism comprising a first and/or a second comb-shaped scraper with a plurality of tines, wherein the tines of the first scraper are fitted into the grooves of the first roller for cleaning the first roller and the tines of the second scraper are fitted into the grooves of the second roller for cleaning the second roller, wherein the scraping mechanism comprises a suction mechanism for sucking out particles removed from the roller by the scraper.
The suction of the provided particles is advantageous in that particles that may remain in the roll due to the separation process can in this way be removed from the ongoing production process. The particles can be returned to the production process or removed at other locations.
According to a further embodiment, the device is designed such that the at least one deflection element is mechanically coupled to at least one vibration exciter which is designed to vibrate the deflection element periodically or aperiodically.
For this purpose, for example, at least one suspension of the deflection element is configured as a vibration exciter. Suitable vibration exciters are, for example, piezoelectric actuators, eccentrics or ultrasonic generators. It is likewise provided that a mechanical element which rotates with the unbalance is used as the vibration exciter. By placing the deflection element in vibration in this way, wear of the deflection element can be reduced. In addition, mechanical jamming (jamming) of the rollers by the strip is prevented or eliminated.
According to a further embodiment, it is provided that the separating means are designed to separate directly adjacent strips from one another along a predetermined separation line in the region of action, by: the open width is stretched transversely to the separation line so strongly that it tears along the separation line.
For such a device, the first roller and the second roller are not in direct contact with each other in the region of action. The open width is not slit along the separation line by the interaction of the two blades, but rather is defined by an overstretching. Since the open width is not cut but rather is torn open in a defined manner, an open structure is formed on the breaking edges, i.e. on the side edges of the strip. Due to this open structure, the strips of web material are better suited for absorbing additives, for example, or for releasing additives also, for example, when heated.
According to a further embodiment, it is provided that the first roller and/or the second roller are/is configured as intermittent rollers, wherein all blades of the intermittent rollers each comprise at least one recess, which interrupts the cutting edges of the blades, wherein the recesses in the blades of the intermittent rollers are arranged along a spiral and this spiral is in a cylindrical circumferential surface which is braced by the cutting edges of the blades and the axis of the spiral coincides with the rotational axis of the intermittent rollers.
"gap" in the context of the present specification shall mean a gap or slot which is hollowed out into the respective blade in such a way that it interrupts the edge of the blade. "spiral" shall mean a helix having a constant slope. The voids arranged along the spiral give rise to the following result: the open width is divided by the separating means in such a way that the individual strips are connected to one another in pairs adjacent to one another by a respective spacer. Thus, loss of individual strips from the process can be avoided even in the event of breakage or tearing of the strips. The defective strip is returned to the process with the next transverse division bar.
The individual strips are manufactured from the web material, such as reconstituted tobacco material, PLA film, paper web or other web material, and the open width is manufactured from the web material.
The object is also achieved by a device for producing a rod of the tobacco processing industry, comprising a device according to one or more of the embodiments mentioned above, wherein the device further comprises a rod forming unit, which is designed to form a rod from a plurality of rods.
By means of such a device, rod-shaped articles of the tobacco processing industry can be produced if, for example, reconstituted tobacco material is used as web material. Such articles are, for example, HNB (heating non-Burn) -products (English: heat-not Burn). If a PLA film is used as web material, it is possible with the aid of this apparatus to manufacture, for example, cooling elements, in particular for HNB articles. If paper is used as web material, it is possible to manufacture a filter element or a spacer element.
The object is also achieved by a method for dividing an open width of web material into a plurality of strips, wherein the open width is divided into a plurality of adjacent strips by a separating device comprising a first roller and a second roller which cooperates with the first roller, wherein the outer side of the roller alternately has circumferential grooves and blades which are closed in the circumferential direction of the respective roller in the axial direction and the blades of the first roller engage in the grooves of the second roller and the blades of the second roller engage in the grooves of the first roller in the active region, wherein the strips are removed from the grooves of the first roller or the second roller by a deflecting device comprising at least one deflecting element, the webs of which are engaged in the grooves of the first roller or the second roller, and wherein the method is improved in that: the strip is guided downstream of the region of action of the separating means along a surface of a plate-shaped deflector, wherein the at least one deflection element is partially configured as a plate-shaped deflector, which downstream of the region of action of the separating means forms a closed surface which extends beyond at least two webs in the axial direction.
All the strips produced in the region of action of the separating means are guided over the surface of the plate-like deflector. Thus, a very reliable method for dividing the open width can advantageously be provided.
Furthermore, the same or similar advantages as already mentioned in relation to the device apply to the method.
According to one advantageous embodiment, it is provided that the particles present are removed from the groove of the first roller by the tip of the first scraper which engages in the groove of the first roller, and the particles present are removed from the groove of the second roller by the tip of the second scraper which engages in the groove of the second roller, wherein the particles removed from the groove are sucked out.
According to a further advantageous embodiment, it is provided that immediately adjacent strips are separated from one another along a predetermined separation line in the region of action by: the open web is stretched transversely to the separation line so severely that the open web tears along the separation line.
Furthermore, the method is improved in particular by: the first roller and/or the second roller are configured as intermittent rollers, wherein all blades of the intermittent rollers each comprise at least one recess, which interrupts the cutting edges of the blades, wherein the recesses in the blades of the intermittent rollers are arranged along a spiral and this spiral is in a cylindrical circumferential surface which is braced by the cutting edges of the blades, and the axis of the spiral coincides with the rotational axis of the intermittent rollers, and wherein the open width is divided into strips which are connected to each other by transverse webs, which strips are in the recesses of the blades during the dividing process.
Other features of the invention will be apparent from the following claims and from the drawings, in which embodiments according to the invention are expressed. Embodiments according to the invention enable individual features or combinations of features.
Drawings
The invention is described below without limiting the general inventive concept by means of embodiments with reference to the drawings, in which reference is made explicitly to the drawings for all details according to the invention which are not explained in detail in the description. Wherein:
figure 1 shows in a schematic simplified illustration an apparatus for manufacturing strips from web material,
fig. 2 shows a schematic simplified detail view of a roll of a separating mechanism of a device for dividing an open width of web material, which detail view is shown in the region of action of the two rolls and in the section of the roll where the axis of rotation is located,
figure 3 shows a schematic simplified perspective view of the separating mechanism together with the deflecting mechanism and the scraping mechanism with suction function,
fig. 4 shows a schematic simplified perspective detail view of the roller of the separating mechanism together with the deflection mechanism, which detail view is shown in the region of action of the two rollers,
figure 5 shows a schematic simplified top view of a deflection element of the deflection mechanism,
Fig. 6 shows a schematic, simplified perspective, detail view of the integrally formed deflection element in the operating position, wherein the opposing roller that cooperates with the roller is not shown,
figure 7 shows a schematically simplified cross-section of the two rollers of the separating mechanism comprising a deflection mechanism in a plane perpendicular to the axial direction,
figure 8 shows a schematic simplified perspective detail of a roller of the separating mechanism comprising a further deflection mechanism,
figure 9 shows a schematic simplified perspective view of one of the two rollers of the separating mechanism together with the other deflection mechanism,
figure 10 shows in a sectional view a representation of the roller known from figure 9 including a deflection mechanism in a plane perpendicular to the axial direction,
figure 11 shows a further schematic simplified perspective detail of the roller of the separating mechanism together with a further deflection mechanism,
FIG. 12 shows another schematically simplified cross-section of the two rollers of the separating mechanism including another deflecting mechanism in a plane perpendicular to the axial direction, an
Fig. 13 shows a further schematic simplified detail view of the roller of the separating mechanism, which detail view is shown in the region of action of the two rollers and in the section of the roller in which the axis of rotation is located, wherein additionally a deflection mechanism with a spacer bar that is T-shaped in cross section is shown.
In the drawings, the same or similar elements and/or components are provided with the same reference numerals, respectively, so that repeated description is accordingly omitted.
Within the scope of the invention, features identified with "particularly" or "preferably" shall mean optional features.
Detailed Description
Fig. 1 shows in a schematic and simplified illustration an apparatus 2 for producing strips 4 from web material. The web material is unwound as an open width 6, for example from a reel 8. An unwinding unit 10 is provided for this purpose. It is also provided that the open width 6 is transported in other ways. The web material of the open width 6 is, for example, reconstituted tobacco material, PLA film or paper.
The open width 6 is fed to a device 11 comprised by the apparatus 2 for dividing the open width 6. The device 11 for dividing the open width 6 comprises a separating mechanism 12 and a deflection mechanism 13. The separating mechanism 12 is designed to divide the open width 6 into a plurality of strips 14. The strips 14 extend in a strip plane, which in the illustration of fig. 1 is perpendicular to the paper plane. The strip 14 is led out of the separating means 12 by the deflecting means 13. In fig. 1, a schematic top view of a plurality of produced strips 14 is shown as a detail, which is turned 90 ° out of the plane of the paper for clarity. The strips 14 extending substantially parallel to each other are transported, for example by means of transport rollers 16, in the direction of a feed hopper 18 of a strip forming unit 20. Instead of the conveyor rollers 16, it is likewise possible to provide smooth, planar guide means, for example plates or the like, onto which the strips 14 are pulled and/or moved. It is furthermore provided that the device 11 is not configured in such a way that the open width 6 is processed in the horizontal direction, unlike the illustration in fig. 1. The open width can be diverted or else transported in a direction deviating from the horizontal or subjected to one or more processing steps. However, it has proven advantageous that the divided strip 14 is not diverted until it reaches the feed hopper of the strip forming unit 20. The strip forming unit 20 is part of the apparatus 2 for manufacturing the strips 4. In which unit the strips 4 are formed by a number of strips 14. The strip formation takes place, for example, in a specification channel 22 which is only schematically outlined. After the strip is formed, the strip 4 can be sized to be cut into individual rod-shaped articles 24 having the desired length.
The separating mechanism 12 of the device 11 for dividing the open width 6 comprises a first roller 26 and a second roller 28 co-acting with the first roller. The two rollers 26, 28 are not in mechanical contact with each other. The first roller 26 rotates about a first axis of rotation 27 and the second roller 28 rotates about a second axis of rotation 29.
Fig. 2 shows a schematic simplified detail of the two rollers 26, 28 of the separating mechanism 12 in the region of action of the two rollers 26, 28. Fig. 2 is a representation in a section in which the axes of rotation 27, 29 of the rollers 26, 28 are located. The axes of rotation 27, 29 of said rollers 26, 28 extend along the axial direction a.
The first roller 26 has a first outer side 30 and the second roller 28 has a second outer side 32. The outer flanks 30, 32 of the rollers 26, 28 have circumferential grooves 34 and blades 36 which are alternately closed in the circumferential direction along the axial direction a. For simplicity, only some of the slots 34 and blades 36 are provided with reference numerals. In the illustrated region of action of the two rollers 26, 28, the blade 36 of the first roller 26 engages in the groove 34 of the second roller 28, and the blade 36 of the second roller 28 engages in the groove 34 of the first roller 26. When the open web 6 is introduced into the region of action between the two rollers 26, 28, the open web 6 is locally and transversely overstretched along the separating plane T shown in dashed lines so strongly that the open web 6 tears open in the separating plane T. In the illustration of fig. 2, the separating plane T is perpendicular to the web plane E, in which the open width 6 is fed to the separating means 12.
The blades 36 of the rollers 26, 28 each comprise an upper side 38, which is part of the outer side 30, 32 of the associated roller 26, 28. The grooves 34 each comprise a base 40, which is likewise part of the outer side 30, 32 of the associated roller 26, 28. The blade 36 and the slot 34, and more precisely the upper side 38 of the blade 36 and the bottom 40 of the adjacent slot 34, are connected to each other by side edges 42, 44, respectively. Depending on whether the groove 34 or the blade 36 is assigned to the first roller 26 or the second roller 28, these edges are referred to as first edges 42 if a first roller 26 is involved and as second edges 44 if a second roller 28 is involved. The side edges 42, 44 extend radially, i.e. in a radial direction R perpendicular to the axial direction a. The radial direction R extends in the direction of the radius of the respective roller 26, 28. The open web 6 is divided into strips 14 along separation lines that extend between a first side edge 42 of the first roll 26 and a second side edge 44 of the second roll 28, respectively.
The separating means 12 are designed to divide the open width 6 having a predetermined material thickness. The separating means 12 is designed such that an axial gap dimension 46, which is 0.5 to 2 times, in particular 0.6 to one time, the value of the predefined material thickness of the open width 6, is provided between the side edges 42, 44 of the opposing rollers 26, 28, i.e. between the first side edge 42 and the second side edge 44. The distance D between the upper side 38 of the blade 36 of the first roller 26 and the upper side 38 of the blade 36 of the second roller 28, measured in the radial direction R of the rollers 26, 28, is, for example, one to five times the value of the predefined material thickness of the open web 6. The local overstretching of the open web 6 along the separation line brings the individual strips 14 in the grooves 34 of the rollers 26, 28 in the state of being separated from one another, in which individual strips 14 again only some of them are provided with reference numerals for reasons of simplicity. The strips 14 have an open structure at their edges 48, since they are not separated by cutting, but rather are torn apart in a defined manner by overstretching.
As a result of the division of the open width 6 into individual strips 14, the following may occur: the individual strips 14 adhere in the groove bottoms of the grooves 34 in the respective rollers 26, 28, i.e. on or near the bottom 40 of the groove 34 and are therefore difficult to remove from the groove 34 at the end of the region of action between the two rollers 26, 28. For this reason, the separating mechanism 12 comprises a deflection mechanism 13, the deflection mechanism 13 comprising at least one deflection element, the parting bead 50 of which engages into the groove 34 of the first roller 26 and the second roller 28. The division bar 50 extends between the bottom 40 of the slot 34 and the corresponding strap 14. The strip 14 is guided at the end of the region of action by a spacer 50 out of the slot 34, i.e. from the bottom 40 of the slot 34 in the direction of the upper side 38 of the blade 36. From there, the strip 14 is led out of the cylindrical outer sides of the rollers 26, 28, defined by the outer circumference of the blades 36. The strip 14 further reaches a plate-like deflector of the deflector element, which is arranged downstream of the region of action and is configured as a closed surface.
Fig. 3 shows the separating mechanism 12 in a schematic simplified perspective view, which comprises a first roller 26 and a second roller 28. For reasons of simplicity, the open width 6 and the strips 14 produced therefrom by means of the separating mechanism 12 are not shown. The open width 6 is fed from the right to the separating apparatus 12 from the inlet region 60. In the region of action 52, the rollers 26, 28 engage one another and the open web 6 is divided into individual strips 14. The deflection mechanism 13 comprises a first deflection element 54 and a second deflection element 56. The deflection elements 54, 56 are partially configured as plate-shaped deflectors.
In the embodiment shown in fig. 3, the deflection elements 54, 56 are arranged symmetrically with respect to the dividing plane AT. The position of the deflector element is outlined in dashed lines in fig. 3. Furthermore, the deflector elements 54, 56 are formed symmetrically with respect to the dividing plane AT in the inlet region 60 and in the outlet region 58, i.e. upstream of the region of action 52 and downstream of the region of action 52. In other words, the deflector elements 54, 56 are of the same type in the inlet region 60 and in the outlet region 58.
In fig. 3, the area of the second deflector element 56, which is configured as a plate-like deflector 62, is visible in the outlet area 58. This plate-shaped deflector 62 is configured as a closed surface and connects the parting strips 50 of the second deflector element 56, which are not visible in fig. 3, to one another.
The deflection elements 54, 56 are for example designed to exert a spring force acting in the direction of the dividing plane AT on the open width 6 or the produced strip 14. For this purpose, the deflection elements 54, 56 are embodied, for example, as spring-elastic elements. It is also provided that the bearings or suspensions 63 of the deflection elements 54, 56 are designed as spring seats. The first deflection element 54 is thus spring-loaded in the direction of the second roller 28 or is spring-loaded in this direction. Accordingly, the second deflection element 56 is spring-loaded in the direction of the first roller 26 or is spring-loaded in this direction. The spring force can be adjusted accordingly.
According to another embodiment, the deflection elements 54, 56 are mechanically coupled to at least one vibration exciter. The vibration exciter is designed to set the deflection elements 54, 56 into periodic or aperiodic vibrations. For example, the at least one suspension 63 of the at least one deflection element 54, 56 is configured as a vibration exciter, for example as a piezoelectric actuator, an eccentric, an ultrasonic generator or as a mechanical element which rotates with an imbalance. By placing the deflecting elements 54, 56 in vibration in this manner, mechanical jamming (clogging) of the rollers 26, 28 by the strip 14 is prevented or eliminated.
Further, the separating mechanism 12 is provided with a scraping mechanism 64. The scraping mechanism comprises a first comb-shaped scraper 66 provided with a plurality of tines, wherein the tines of the first scraper 66 engage into the grooves 34 of the first roller 26 and serve for this purpose for cleaning the first roller 26. Furthermore, the scraping mechanism 64 comprises a second scraper 68 which is likewise provided with a pointed end, wherein the pointed end of the second scraper 68 engages in the groove 34 of the second roller 28 for cleaning this roller 28. In addition, the scraping mechanism 64 includes a suction mechanism 70, with which suction mechanism 70 particles removed from the rollers 26, 28 by the scrapers 66, 68 are sucked out. In the mechanism shown in fig. 3, the suction mechanisms 70 each include a hood 72 in which a suction channel 74 exists. The hood 72 extends all the way to the outer sides of the rollers 26, 28, so that the particles removed by the scrapers 66, 68 are received into the inner space of the hood 72 and removed by the suction channel 74.
The first cutting roller 26 or the second cutting roller 28 or both cutting rollers 26, 28, i.e. the first cutting roller 26 and the second cutting roller 28, are for example configured as intermittent rollers. The configuration of the separating mechanism 12 with at least one intermittent roller ensures that the strips 14 are connected to each other in pairs with the transverse division bars. For intermittent rolls, all of the blades 36 of the intermittent rolls 26, 28 are provided with a gap that interrupts the edges of the blades 36. The voids in the blades 36 of such intermittent rollers 26, 28 are arranged along a helix. The helix is in the cylindrical peripheral surface which is braced by the cutting edges of the blades 36. The axis of this spiral coincides with the respective rotation axis 27, 29 of the intermittent roller 26, 28.
Fig. 4 shows the first roller 26 and the second roller 28 in a schematic simplified perspective detail view. The outer blade 36 of the first roller 26 is seen at the front in this figure. In the region of action 52, this blade 36 intersects the blade 36 of the second roller 28. The blade 36 thus engages in the groove 34 of the opposing roller 26, 28. The parting bead 50 of the second deflector element 56 extends through this channel 34. The opposing first deflection element 54 likewise has webs 50, of which only one single web is partially visible in these webs 50. These division bars extend through the grooves 34 of the first roller 26. The open width 6 is fed from the right to the region of action 52 between the first deflection element 54 and the second deflection element 56. In the application region 52, the open width 6 is divided into individual strips 14 which are led out of the rolls 26, 28 on the upper side 76 of the spacer 50 facing the respective opposite roll 26, 28. The strip 14 then passes onto a plate-like deflector 62, which in fig. 4 is provided with reference numerals for the second deflector element 56. The strip 14 is guided on the upper side of the deflector 62 and is provided for further processing steps. In the same manner as described for the second deflecting element 56, the strip 14 is also led out of the first roller 26 by the first deflecting element 54. In the outlet region 58, the strip 14 is guided between the two deflection elements 54, 56, more precisely between the plate-shaped deflectors 62 of the respective deflection elements 54, 56.
Fig. 5 shows a schematic and simplified top view of a deflection element, exemplary first deflection element 54, of the deflection mechanism 13. The deflector element 54 comprises a plurality of division bars 50. There is a free space or gap between the parting strips 50 through which the blade 36 of the first roller 26 passes in the assembled condition ready for use. The division bar 50 is converted into a plate-shaped deflector 62. The extent 78 of the plate-like deflector 62 in the axial direction a is greater than the dimension of the region of action 52 in this direction. The dimension of the active area 52 in the axial direction a corresponds to the spacing between the outer blades 36 of the rollers 26, 28. Since the blades 36 of the roller 26 pass through the gap between the parting strips 50, this is the distance between the outer edges of the outermost gap, measured in the axial direction a.
The deflector element 54 is, for example, integrally formed. For this purpose, for example, the plate is provided with slits, so that a spacer 50 is produced. The deflector element 54 is thus, for example, completely flat.
Fig. 6 shows a schematic simplified perspective detail view of the integrally formed deflection element 54 in the operating position. The opposing roller 28, which cooperates with the illustrated roller 26, is not shown. The deflection element shown should again be the first deflection element 54 by way of example only. The blades 36 of the first roller 26 extend in the grooves between the parting strips 50. The division bar 50 is converted into a plate-shaped deflector 62. The plate-like deflector 62 is connected downstream to the division bars 50 and connects all division bars 50 to each other. Upstream, the webs 50 are likewise connected to one another in the exemplary embodiment shown by a further plate-shaped deflector 80.
Fig. 7 shows the first roller 26 and the second roller 28 in a schematically simplified cross-sectional view, which is in a plane perpendicular to the axial direction a. Also shown are a first deflection element 54 and a second deflection element 56, which together form the deflection mechanism 13. The two deflection elements 54, 56 are arranged on opposite sides of the dividing plane AT. The dividing plane AT is arranged such that it is perpendicular to the shortest connecting line between the first axis of rotation 27 of the first roller 26 and the second axis of rotation 29 of the second roller 28. The dividing plane AT here divides the shortest connecting line exactly in the middle. The dividing plane AT is thus as far from the first and second rotation axes 27, 29. This applies on the premise that: the two rollers 26, 28 have a radius that is the same. The two deflection elements 54, 56 are arranged, for example, mirror-symmetrically with respect to the dividing plane AT.
Fig. 8 shows again the first roller 26 and the second roller 28 in a schematic simplified perspective detail view, wherein the second roller 28 is exemplarily provided with a second deflection element 56 according to another embodiment. The division bar 50 is received in a common carrier 82 on the front side in fig. 8. In particular, it is provided that the spacer 50 is not formed integrally or in one piece with this support 82. Furthermore, the webs 50 each have an S-shaped deflection, so that their upper side 76 reduces the distance from the opposing roller, in this case from the first roller 26, in part. The S-shaped yaw points in the direction of this first roller 26.
Fig. 9 shows a further schematic simplified perspective view, in which the second roller 28 and the second deflection element 56 according to a further embodiment are shown. The deflector element 56 has a first S-shaped deflection in a first region 84 and a second S-shaped deflection in a second region 86.
Fig. 10 shows in a sectional view that the roller 28 known from fig. 9 comprises a second deflector element 56, which sectional view is shown in a plane perpendicular to the axial direction a. The first and second regions 84, 86 are again visible in which there is an S-shaped deflection in the deflection element 56, which is formed in the opposite direction.
Fig. 11 shows in a further schematic and simplified perspective view the rollers 26, 28 of the separating mechanism 13 according to a further exemplary embodiment together with the respective deflection elements 54, 56. The deflection elements 54, 56 are designed such that they each have two S-shaped deflections pointing in opposite directions. These S-shaped runouts are in the first and second regions 84, 86. In addition, a gap exists in the third region 88, in which gap the deflectors 54, 56 are again distanced from the respective opposing roller 26, 28.
Fig. 12 shows a further schematic simplified sectional view in a plane perpendicular to the axial direction a of the two rollers 26, 28 of the separating mechanism 12. The illustrated separation mechanism 12 includes a deflection mechanism 13 that includes a first deflection element 54 and a second deflection element 56. In contrast to the deflection mechanism 13 described in the preceding exemplary embodiment, the webs 50 of the deflection elements 54, 56 shown in fig. 12 are each held on one side on a plate-shaped deflector 62 and extend from there into the grooves 34 of the first roller 26 or into the grooves 34 of the second roller 28. The parting bead 50 can be seen completely in the first deflector element 54, since the sectional view in fig. 12 releases the view of the groove 34 of the first roller 26. This division bar 50 extends from the deflector 62 into the groove 34 in the direction of its free end 90. The parting bead 50 of the second deflection element 56 is only partially visible, since the associated groove of the second roller 28 is not shown in the sectional view of fig. 12.
The outlet area between the deflector elements 54, 56 is enlarged funnel-like. The plate-shaped deflector 62 of the second deflector element 56 is in particular planar and is formed, for example, parallel to the dividing plane AT indicated by the dashed line. Thus, individual strips (not shown) can be led out from the region of action between the rollers 26, 28 via the spacer bar 50 and the plate-shaped deflector 62 of the second deflector element 56.
Further, a first scraper 66 of the scraping mechanism 64, which has been explained before, is exemplarily shown at the first roller 26 in fig. 12.
Fig. 13 shows the rollers 26, 28 of the separating mechanism 12 in another schematic simplified detail. The region of action between the two rollers 26, 28 is shown in the section of the axes of rotation of the rollers 26, 28. The illustration is similar to that in fig. 2. The first roller 26 and the second roller 28 are only partially shown. The blade 36 of the first roller 26 fits into the slot 34 of the second roller 28. Conversely, the blade 36 of the second roller 28 fits into the slot 34 of the first roller 26. The spacer bars 50 of the first deflection element 54 are likewise each shown in cross section in the grooves 34 of the first roller 26 and in the grooves 34 of the second roller 28. The parting bead 50 of the second deflector element 56 is arranged in the groove 34 of the second roller 28 and is shown in cross section. The division bar 50 is configured in a T-shape in cross section. The flat upper side surfaces 92 of the division bars 50 face the dividing surfaces AT, respectively. On this flat upper side 92, the strip 14, which is not shown in fig. 13, is led out from the region of action between the first and second rollers 26, 28. The parting bead 50 fills the groove 34 by more or less width only in the head region 94. In the trunk area 96, which is formed to be significantly narrower, the width of the division bar 50 is significantly smaller. In this way, it is possible for impurities to be carried between the groove side edges 98 and the narrow trunk area 96 in the direction of the bottom 40 of the groove 34, where they can be removed by means of the scraping mechanism 64, which is not shown in fig. 13.
All the features mentioned, including also features which are known only from the figures, as well as individual features which are disclosed in combination with other features, are regarded as important for the invention both individually and in combination. Embodiments according to the invention can be realized by means of individual features or by means of a combination of features.
List of reference numerals
2 apparatus for manufacturing strips
4 strips
6 open width
8 reels
10 unwinding unit
11 device for dividing open width
12 separating mechanism
13. Deflection mechanism
14 strips
16 conveying roller
18 feed hopper
20 strip forming unit
22-gauge channel
24 articles
26 first roller
27 first axis of rotation
28 second roller
29 second axis of rotation
30 first outer side
32 second outer side
34 groove
36 blade
38 upper side
40 bottom part
42 first side edge
44 second side edge
46 axial gap dimension
48 edge
50. Division bar
52 region of action
54 first deflector element
56 second deflector element
58 outlet area
60 inlet area
62 plate deflector
63. Suspension frame
64 scraping mechanism
66 first scraper
68 second scraper
70 suction mechanism
72 cover
74 suction channel
76 upper side
78 expansion of
80 further deflector
82 support
84 first region
86 second region
88 third region
90 free ends
92 flat upper surface
94 head region
96. Torso region
98 groove side edge
Aaxial direction
AT dividing plane
E paper plane
R radial direction
T separating surface
Claims (16)
1. Device (11) for dividing an open web (6) of web material into a plurality of strips (14), comprising a separating mechanism (12) and a deflection mechanism (13), wherein the separating mechanism (12) comprises a first roller (26) and a second roller (28) which cooperates with the first roller, and wherein the outer side faces (30, 32) of the rollers (26, 28) alternately have grooves (34) and blades (36) which are closed in the circumferential direction of the respective roller (26, 28) along an axial direction (A), and wherein in an active region the blades (36) of the first roller (26) engage into the grooves (34) of the second roller (28) and the blades (36) of the second roller (28) engage into the grooves (34) of the first roller (26), and wherein the separating mechanism (12) is set up for dividing the open web (6) into a plurality of adjacent strips (14), and wherein the deflection mechanism (13) comprises at least one deflection element (50) which engages into at least one deflection element (50) in the active region (56) of the deflection element (26) or at least one of the deflection elements (54) is configured as a separator (56), downstream of the region of action of the separating means (12), the deflector forms a closed surface which extends in the axial direction (A) beyond at least two webs (50), wherein the webs (50) of at least one deflection element (54, 56) of the deflecting means (13) are held on one side on the plate-shaped deflector (62) and extend from the deflector (62) into the grooves (34) of the first roller (26) or the second roller (28) in the region of action in the direction of their respective free ends (90).
2. The device (11) according to claim 1, wherein at least one parting bead (50) of the at least one deflector element (54, 56) has a T-shaped cross-section.
3. The device (11) according to claim 2, wherein all the parting strips (50) of the at least one deflector element (54, 56) have a T-shaped cross-section.
4. The device (11) according to claim 1, characterized in that the deflection mechanism (13) comprises a first deflection element (54) and a second deflection element (56), which are arranged on opposite sides of a dividing plane (AT), wherein the shortest connecting line between the first axis of rotation (27) of the first roller (26) and the second axis of rotation (29) of the second roller (28) is perpendicular to the dividing plane (AT), wherein the two deflection elements (54, 56) are arranged on both sides of the dividing plane (AT).
5. Device (11) according to claim 4, characterized in that the two deflection elements (54, 56) are arranged mirror-symmetrically with respect to the dividing plane (AT) on both sides of the dividing plane (AT).
6. Device (11) according to claim 1, characterized in that the AT least one deflection element (54, 56) is designed to exert a spring force acting in the direction of a dividing plane (AT) on the open web (6) or the strip (14), wherein the shortest connecting line between the first axis of rotation (27) of the first roller (26) and the second axis of rotation (29) of the second roller (28) is perpendicular to the dividing plane (AT).
7. Device (11) according to claim 6, characterized in that the at least one deflection element (54, 56) is configured as a spring-elastic element and/or is supported in a spring-loaded manner.
8. Device (11) according to claim 1, characterized in that said at least one deflecting element (54, 56) has at least one S-shaped deflection, seen in a plane perpendicular to said axial direction (a).
9. The device (11) according to claim 1, further comprising a scraping mechanism (64) comprising a first comb-shaped scraper (66) with a plurality of tines and/or a second comb-shaped scraper (68), wherein the tines of the first comb-shaped scraper (66) are fitted into the grooves (34) of the first roller (26) for cleaning the first roller (26) and the tines of the second comb-shaped scraper (68) are fitted into the grooves (34) of the second roller (28) for cleaning the second roller (28), wherein the scraping mechanism (64) comprises a suction mechanism (70) for sucking out particles cleared from the rollers (26, 28) by the comb-shaped scrapers (66, 68).
10. The device (11) according to claim 1, characterized in that the at least one deflection element (54, 56) is mechanically coupled to at least one vibration exciter, which is set up to put the deflection element (54, 56) into periodic or aperiodic vibrations.
11. Device (11) according to claim 1, characterized in that the separating means (12) are designed to separate directly adjacent strips (14) from one another along a predetermined separation line (T) in the region of action (52) by: stretching the open width (6) transversely to the separation line (T) such that the open width tears along the separation line (T).
12. The device (11) according to claim 1, characterized in that the first roller (26) and/or the second roller (28) are configured as intermittent rollers, wherein all blades (36) of the intermittent rollers each comprise at least one void, which interrupts the cutting edge of the blade (36), wherein the voids in the blades (36) of the intermittent rollers (26, 28) are arranged along a spiral and the spiral is in a cylindrical circumferential surface that is spanned by the cutting edge of the blade (36), and the axis of the spiral coincides with the rotation axis (27, 29) of the intermittent rollers (26, 28).
13. Device (2) for manufacturing a rod (4) of the tobacco processing industry, comprising an apparatus (11) according to claim 1 and a rod forming unit (20) established for forming the rod (4) from a plurality of strips (14).
14. Method for dividing an open web (6) of web material into a plurality of strips (14) with a device (11) according to any one of claims 1 to 12, wherein the open web (6) is divided into a plurality of adjacent strips (14) with a separating means (12) comprising a first roll (26) and a second roll (28) cooperating with the first roll, wherein the outer sides (30, 32) of the rolls (26, 28) alternately have circumferential grooves (34) and blades (36) closed in the circumferential direction of the respective roll (26, 28) in an axial direction (a), and wherein the blades (36) of the first roll (26) are fitted into the grooves (34) of the second roll (28) in an action zone (52) and the blades (36) of the second roll (28) are fitted into the grooves (34) of the first roll (26), wherein the strips (26) are removed from the first roll (26) or the grooves (34) of the second roll (26) with a deflecting means (13) comprising at least one deflecting element (54, 56), characterized in that the strips (14) are guided downstream of the region of action (52) of the separating means (12) along a surface of a plate-shaped deflector (62), wherein the at least one deflector element (54, 56) is partially configured as a plate-shaped deflector (62) which forms a closed surface downstream of the region of action (52) of the separating means (12) which extends beyond at least two webs (50) in the axial direction (A), wherein directly adjacent strips (14) are separated from one another along a predetermined separation line (T) in the region of action (52), by: stretching the open width (6) transversely to the separation line (T) such that the open width tears along the separation line (T).
15. The method according to claim 14, characterized in that the particles present are removed from the groove (34) of the first roller (26) by means of a tip of a first scraper (66) which engages in the groove (34) of the first roller (26), and the particles present are removed from the groove (34) of the second roller (28) by means of a tip of a second scraper (68) which engages in the groove (34) of the second roller (28), wherein the particles removed from the groove (34) are sucked out.
16. The method according to claim 14, characterized in that the first roller (26) and/or the second roller (28) are configured as intermittent rollers, wherein all blades (36) of the intermittent rollers each comprise at least one void, which interrupts the cutting edge of the blade (36), wherein the voids in the blades (36) of the intermittent rollers are arranged along a helix and the helix is in a cylindrical circumferential surface which is spanned by the cutting edge of the blade (36), and the axis of the helix coincides with the rotational axis (27, 29) of the intermittent rollers, and wherein the open width (6) is divided into strips (14) which are connected to each other by transverse spacers, which strips are in the voids of the blades (36) during the dividing.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019100755.0A DE102019100755A1 (en) | 2019-01-14 | 2019-01-14 | Device and method for cutting a flat web and device for producing a strand |
| DE102019100755.0 | 2019-01-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111434249A CN111434249A (en) | 2020-07-21 |
| CN111434249B true CN111434249B (en) | 2023-06-30 |
Family
ID=69147521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010036841.3A Active CN111434249B (en) | 2019-01-14 | 2020-01-14 | Device and method for dividing open width and device for producing strips |
Country Status (4)
| Country | Link |
|---|---|
| EP (2) | EP3680078B1 (en) |
| CN (1) | CN111434249B (en) |
| DE (1) | DE102019100755A1 (en) |
| PL (1) | PL3680078T3 (en) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US789465A (en) * | 1903-05-15 | 1905-05-09 | Varley Duplex Magnet Co | Paper-slitting machine. |
| US3472236A (en) * | 1964-11-16 | 1969-10-14 | American Mach & Foundry | Cigarette or cigar making machine and method |
| US3589373A (en) * | 1968-10-28 | 1971-06-29 | Amf Inc | Cigarette making machine |
| DE3616554C2 (en) * | 1986-05-16 | 1995-05-24 | Schleicher Co Feinwerktech | Knife roller stripping device for document shredders or the like |
| US5025814A (en) | 1987-05-12 | 1991-06-25 | R. J. Reynolds Tobacco Company | Cigarette filters containing strands of tobacco-containing materials |
| US5511732A (en) | 1994-12-28 | 1996-04-30 | Fellowes Manufacturing Company | Document shredding machine with continuous stripper |
| DE102007059625B4 (en) * | 2007-12-10 | 2013-07-25 | Hauni Maschinenbau Ag | Strand cutter |
| DE202011003744U1 (en) * | 2011-03-10 | 2011-05-12 | Su, Chao-Lung | Reinforced cutter for a strip cut paper shredder |
| DE102016112724B4 (en) * | 2016-07-12 | 2018-02-08 | Hauni Maschinenbau Gmbh | Cutting a tipping paper strip of the tobacco processing industry |
| CN108081344A (en) * | 2017-11-23 | 2018-05-29 | 广东恒联食品机械有限公司 | A kind of sliced meat Machine for cutting pattern |
-
2019
- 2019-01-14 DE DE102019100755.0A patent/DE102019100755A1/en active Pending
-
2020
- 2020-01-08 EP EP20150666.4A patent/EP3680078B1/en active Active
- 2020-01-08 PL PL20150666.4T patent/PL3680078T3/en unknown
- 2020-01-08 EP EP23184847.4A patent/EP4241941A3/en active Pending
- 2020-01-14 CN CN202010036841.3A patent/CN111434249B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| EP4241941A3 (en) | 2023-12-20 |
| EP3680078A1 (en) | 2020-07-15 |
| PL3680078T3 (en) | 2024-01-03 |
| EP4241941A2 (en) | 2023-09-13 |
| CN111434249A (en) | 2020-07-21 |
| EP3680078B1 (en) | 2023-07-12 |
| DE102019100755A1 (en) | 2020-07-16 |
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