EP4263201A1 - Vorrichtung und verfahren zur herstellung eines stab- oder rohrförmigen artikels sowie stab- oder rohrförmiges produkt - Google Patents
Vorrichtung und verfahren zur herstellung eines stab- oder rohrförmigen artikels sowie stab- oder rohrförmiges produktInfo
- Publication number
- EP4263201A1 EP4263201A1 EP21839355.1A EP21839355A EP4263201A1 EP 4263201 A1 EP4263201 A1 EP 4263201A1 EP 21839355 A EP21839355 A EP 21839355A EP 4263201 A1 EP4263201 A1 EP 4263201A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- glue
- base material
- strip
- line
- product
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
- B31D5/00—Multiple-step processes for making three-dimensional [3D] articles
- B31D5/0095—Making drinking straws
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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
- A24C5/46—Making paper tubes for cigarettes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31C—MAKING WOUND ARTICLES, e.g. WOUND TUBES, OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31C5/00—Making tubes or pipes without using mandrels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F5/00—Attaching together sheets, strips or webs; Reinforcing edges
- B31F5/04—Attaching together sheets, strips or webs; Reinforcing edges by exclusive use of adhesives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F7/00—Processes not otherwise provided for
- B31F7/004—Making tubes
Definitions
- the present invention relates to a device for producing a rod-shaped or tubular product, in particular a drinking straw or a cigarette filter, comprising a first conveying device, via which a strip of base material can be conveyed in the longitudinal direction, a first glue application device for applying at least one line of glue to the strip of base material, a second Conveyor device via which an additional material can be conveyed to a joining device, the joining device being set up to bring the strip of base material together with the additional material, and a cutting device set up to cut the additional material glued to the strip of base material at an interface with a cut . Furthermore, the invention relates to a product in the form of a rod or tube, in particular a drinking straw or a cigarette filter, and a method for the production thereof.
- DE 10 2017 108 789 A1 discloses a method for producing a double-layer tube for the tobacco processing industry using a shaping tube that tapers conically in the conveying direction, through which an inner strip of material is conveyed, so that a tube is formed from the inner strip of material. Furthermore, an outer strip of material is provided, which is glued over the entire surface and then glued to the pipe, which is formed from the inner strip of material. In this way a double-layer tube is formed.
- EP 3 381 303 A1 also discloses a method for producing at least double-layer tubular strands for the tobacco processing industry. For this purpose, two strips of material, of which at least one is glued, are brought together in an offset manner, so that a tubular strand is formed.
- the strand still has to be shortened into longitudinal sections of a predefined length. This shortening is usually done by a knife that is moved in the transverse direction through the rope or tubular intermediate product.
- quality losses can occur at the cut surfaces, so that the required quality standards cannot be met.
- the object of the invention is to specify an improved device and an improved method for producing a rod-shaped or tubular product and an improved rod-shaped or tubular product.
- the first glue application device be set up to apply the one or more traces of glue to the base material strip with interruptions in the longitudinal direction, so that glue-free zones are created, with the first glue application device being synchronized with the cutting device in such a way that the cut is made through one of the glue-free zones takes place.
- the longitudinal direction of the strip of base material is to be understood as meaning the direction in which the strip of base material has its greatest longitudinal extent.
- the strip of base material is usually moved through the device along its longitudinal direction.
- glue within the meaning of the present application also includes adhesives.
- a glue line within the meaning of the present application is an interrupted or uninterrupted line of glue which is applied in the longitudinal direction on the base material strip.
- An interruption of the glue line within the meaning of this application is to be understood as a complete interruption of the respective glue line. This means that areas with smaller amounts of glue or a merely tapering glue line do not constitute an interruption within the meaning of this application.
- Synchronization of the cutting device with the first glue application device means any type of adjustment of the cut or the interface to the glue pattern.
- the synchronization of the cutting device with the first glue application device makes it possible for cuts through zones with glue to be reduced, or the cut can even be made without contact with the glued zone.
- the invention has recognized that quality losses when shortening a strand or tubular intermediate product are caused by a cut in an area with glue. With such a cut through glued zones, in particular through zones with glue that has not yet hardened, residues of glue stick to the blade of the cutting device. Black sanding dust is also deposited on these glue residues, which is caused by the sharpening of the knives that have to be constantly resharpened.
- the invention has recognized that remaining glue on the cut surfaces of the cut tubular or rod-shaped product leads to contamination of downstream machine components with residues of glue, which leads to unwanted stops of the machine and shortened cleaning intervals. This effect can be reduced or even completely prevented by synchronizing the first glue application device with the cutting device.
- the rod or tube-shaped product thus has an improved quality and the system reliability properties of the device can be increased.
- All of the glue lines applied by the first glue application device are preferably provided with glue-free zones.
- the cut can be made entirely through areas of the glue-free zone.
- the device is set up to arrange the glue-free zones of several glue tracks on the base material strip in such a way that the cut can be made through the glue-free zones of several glue tracks.
- the glue-free zones can for this purpose, for example, be arranged in alignment with one another in the transverse direction on the base material strip.
- the first glue application device is preferably a cold glue application device for applying traces of cold glue.
- the invention has recognized that the contamination of the knives occurs in particular through cuts through areas with cold glue. A particularly advantageous effect can therefore be achieved by forming a cold glue track with glue-free zones.
- a cold glue is to be understood as meaning a glue that is applied in the liquid state without any thermal energy supply, i.e. at room temperature, and then hardens.
- hot melt must first be liquefied for processing by supplying thermal energy; the hardening of the hot glue then takes place during the cooling process.
- the first glue application device can preferably be controlled or regulated in such a way that glue forming the glue line is applied intermittently to the base material strip. It has proven to be advantageous to apply the glue directly with interruptions, because the device can be constructed in a simplified manner in this way.
- a valve of a nozzle of the cold glue application device is preferably controlled or regulated accordingly. This can be done, for example, by means of a mechanical or electronic control or regulation device.
- the first glue application device comprises at least one stationary nozzle and a rotationally driven roller, the roller between the at least a nozzle and the strip of base material is arranged, so that the glue is applied starting from an outlet opening of the at least one nozzle via the roller as a line of glue on the strip of base material.
- the roller is preferably rotatable by means of a drive in such a way that the lateral surface of the roller facing the strip of base material rotates counter to the direction of movement of the strip of base material.
- the use of the roller to form a glue line with glue-free zones offers particular advantages.
- the formation of the glue-free zones can take place, for example, in that glue is applied to the roller only in sections by appropriate control and/or regulation of the nozzle.
- the roller can be used to reliably depict the change between glued and glue-free zones, i.e. smearing or running of glue into areas that are actually intended as glue-free zones can be prevented by interposing a roller between the nozzle and the base material strip .
- the roller preferably has a lateral surface with indentations for producing the glue-free zones.
- the indentations preferably protrude radially inwards, starting from the lateral surface, so that these points are not wetted with glue by the nozzle.
- the indentations are located at the points on the roller where the glue-free zones are to be created on the base material strip. Let through this constructive measure the cold glue-free zones can be generated particularly reliably and cost-effectively.
- the first glue application device is set up to apply precisely one, two or three lines of glue that are interrupted in the longitudinal direction. It has been found that this number of glue lines is sufficient to create a reliable connection between the strip of base material and the additional material.
- the first glue application device can preferably be set up to apply at least one glue line, which is uninterrupted in the longitudinal direction, to the base material strip.
- the combination of at least one interrupted glue line with glue-free zones and at least one uninterrupted glue line makes it possible to achieve an ideal compromise between a reliable connection of the strip of base material to the additional material on the one hand and preventing the knife from getting dirty on the other. It has proven to be particularly advantageous if the first glue application device is set up to apply exactly two lines of glue that are interrupted in the longitudinal direction, and to apply exactly one line of glue that is uninterrupted in the longitudinal direction.
- a second glue application device is preferably provided for applying at least one uninterrupted line of hot glue to the strip of base material.
- the hot glue line preferably forms a seam line by means of which two end sections of the base material strip extending in the longitudinal direction can be glued to one another. More preferably, two overlapping ends of the base material strip are glued together by this seam track.
- the strip of base material preferably has a transverse extent orthogonal to the longitudinal direction, with the first and/or second glue application device being/are set up in such a way that the at least one uninterrupted line of glue has less than 50% of the transverse extent of the strip of base material, more preferably less than 60%, in particular preferably less than 80%.
- the transverse extent of the at least one uninterrupted line of glue corresponds to less than 50% of the transverse extent of the at least one interrupted line of glue, preferably less than 60%, more preferably less than 80%. If several interrupted and/or uninterrupted lines of glue are provided, the values of their transverse extensions must be added together to calculate the ratios. This transverse extension of the uninterrupted line or lines of glue can ensure that the positive effect produced by the interrupted line of glue has a significant impact.
- the joining device includes a shaping section for folding over the strip of base material.
- the shaping section as part of the joining device can ensure that the forming and can take place indirectly after the merging of the base material strip with the additional material. Furthermore, in this way the forming into a tubular or strand-shaped intermediate product can take place before cutting in the cutting device.
- a method for producing a rod-shaped or tubular product comprising the following steps: a) conveying a strip of base material in its longitudinal direction; b) application of at least one line of glue, which is interrupted in the longitudinal direction, to the base material strip so that glue-free zones are formed; c) merging the strip of base material with an additional material; d) reshaping and gluing the strip of base material to the additional material, so that an intermediate product in the form of a rope or tube is formed; e) Cutting the strand-like or tubular intermediate product, the cutting being carried out by means of a cut through one of the glue-free zones.
- the applied traces of glue are preferably traces of cold glue.
- both the strip of base material and the additional material are formed by a sheet of paper, with the strip of base material and the additional material being formed into a tubular intermediate product and glued in process step d).
- the strip of base material is preferably brought together with the additional material offset in the transverse direction and closed by the shaping section rolled and glued into a tube.
- the tubular end product produced at the end of the process can be a drinking straw, for example.
- the base material strip can be formed, for example, by a wrapping sheet and the additional material by a filter material for a cigarette filter, with the base material strip being placed and glued around the additional material in process step d), so that a strand-like intermediate product is formed.
- the base material strip can be placed around the filter material and attached to the base material strip by gluing.
- One or more interrupted lines of cold glue are preferably used to attach the filter material to the base material strip.
- tow acetate or multi-filter segments come into consideration as filter material. In this way, a cigarette filter, for example, can be produced as an end product.
- step b) an additional line of hot glue that is uninterrupted in the longitudinal direction is applied.
- the base material strip is glued to itself by the uninterrupted line of hot melt glue.
- the cold glue line is preferably used to bond the base material strip to the additional material
- the hot glue line is used to bond two end sections of the base material to one another.
- a rod-shaped or tubular product in particular in the form of a drinking straw or a cigarette filter, comprising a first longitudinal end and a second longitudinal end, between which a longitudinal axis of the product extends, and a tubular or rod-shaped base body, which is formed by a strip of base material glued to itself by means of glue or by a strip of base material that is glued to an additional material by means of glue, the product having a first glue-free zone which extends from the first longitudinal end over the entire cross-section of the product in the direction of the longitudinal axis, and/or the product has a second glue-free zone which, starting from the second longitudinal end, extends over the entire cross-section of the product in the direction of the longitudinal axis.
- the cross section of the product preferably means a cross section in a plane which is aligned parallel to the end face of the respectively adjacent longitudinal end.
- the arrangement of the glue-free zone at the first and/or at the second longitudinal end means that these ends can be manufactured without the interfering influence of glue.
- tubular or rod-shaped products are cut with the cutting blade of a cutting device is shortened to the desired length.
- the cut through a glued zone can lead to the so-called “black particles" remaining on the product ends formed by the cut.
- glue on the ends of the product can soil any machine components that are used to further process the product.
- the targeted arrangement of glue-free zones on the longitudinal product ends over the entire cross-section means that the cut to form the product ends can be made through a glue-free zone.
- the contamination of the product ends with "black particles" can be prevented and also undesired contamination with glue can be prevented.
- the proposed product in the form of a rod or tube thus has an improved product quality without its strength being adversely affected. So by the first and / or the second
- a rod or tubular product such as a drinking straw
- the additional material can, for example, also be formed by a strip of material, for example made of paper, so that a tubular product in the form of a drinking straw can arise.
- the additional material can also be formed by a filter material for a cigarette filter; it is a rod-shaped product instead of a tubular product.
- the product has a longitudinal seam, ie a line of glue, which is oriented in the direction of the longitudinal axis of the product.
- the glue is biodegradable.
- glue in the sense of this application also includes adhesives. A biodegradable adhesive can therefore also be used.
- the longitudinal axial extension i.e. the extension in the direction of the longitudinal axis, of the glue-free zone or zones extending over the entire cross section, starting from the first and/or the second end, is between 0.5 mm and 10 mm, more preferably between 1 mm and 2 mm, particularly preferably between 0.5 mm and 1 mm.
- Such a product can be manufactured with a device according to claims 1 to 11 or with a method according to claims 12 to 18.
- the tubular product without the additional material.
- the strip of base material is glued to itself with glue.
- production can also take place with the proposed device, in which case, for example, the second conveying device for conveying and adding additional material can then be omitted. Furthermore, the device is then set up so that the cut is made completely through a glue-free zone.
- the proposed method can also be used to manufacture this product, with method steps c) and d) being replaced by the method step in which the strip of base material is shaped and glued to itself with glue so that a tubular intermediate product is formed.
- FIG. 1 shows a schematic representation of a device for producing drinking straws with an interrupted line of cold glue and two uninterrupted lines of cold glue
- FIG. 2 shows a schematic representation of a device for producing drinking straws with two interrupted lines of cold glue and one uninterrupted line of cold glue
- FIG. 3 shows a schematic representation of a device for producing drinking straws with three interrupted lines of cold glue
- FIG. 4 shows a schematic representation of a device for producing cigarette filters with an interrupted cold glue line and an uninterrupted hot glue line
- FIG. 5 shows a schematic representation of a device for producing cigarette filters with two interrupted lines of cold glue and one uninterrupted line of hot glue
- FIG. 6 shows a schematic representation of a device for producing cigarette filters with three interrupted lines of cold glue and an uninterrupted hot glue track
- FIG. 7 shows a schematic representation of a method for producing a rod or tube-shaped product
- Figure 8 is a schematic representation of a tubular product.
- Figures 1 to 3 show a schematic representation of the structure of a device 1 for producing a tubular product, for example a drinking straw.
- the device 1 comprises a first and a second conveyor device 4 and 5, a first glue application device 25, a joining device 11 and a cutting device 12.
- the basic mode of operation of the device 1 is as follows:
- the first conveyor device 4 moves a strip of base material 6 to the first glue application device 25, which is set up to apply at least one interrupted line of glue 8 to the strip of base material 6, so that in a longitudinal direction 7 of the strip of base material 6 the Glue line 8 glue-free zones 14 has.
- the longitudinal direction 7 of the strip of base material 6 is aligned parallel to its longitudinal edge 19 .
- the strip of base material 6 glued in this way is then conveyed to the joining device 11 .
- an additional material 10 is conveyed by the second conveyor 5 to the joining device 11, where the strip of base material 6 is brought together with the additional material 10 and glued, so that a tubular intermediate product 2 is formed.
- the tubular intermediate product 2 comprising the base material strip 6 and the additional material 10 is then shortened at predefined cutting points 13 by a blade of the cutting device 12 .
- the cutting device 12 is synchronized with the first glue application device 25 in such a way that the cut is made through one of the glue-free zones 14 on the base material strip 6 .
- both the base material strip 6 and the additional material 10 are each formed by a paper web.
- the first glue application device 25 is preferably supplied with cold glue, which is first applied via the nozzles 9, 23 and 24 to the roller 26 and from there to the base material 6; the first glue application device 25 is accordingly a cold glue application device. Traces of glue 8, 27 and 28 were therefore so-called cold glue traces, regardless of whether they were interrupted or uninterrupted traces of glue.
- the base material strip 6 with its glue pattern is shown schematically in FIG. It has two unbroken lines of glue 27 and 28 in the Edge regions of the base material strip 6 and an interrupted line of glue 8 arranged in between. Due to the complete interruptions in the glue line 8 in the longitudinal direction 7, glued zones and glue-free zones 14 alternate on the base material strip 6 along the glue line 8.
- the glue-free zones 14 can be produced by the roller 26 , the outer surface of which has at least one depression at a point that corresponds to the glue-free zones 14 on the base material 6 . Accordingly, those areas of the outer surface of the roller 26 are wetted with glue through the nozzles 9, 23 and 24, which correspond to the areas of the base material strip 6 on which an application of glue is to take place.
- the glue-free zones 14 it is also possible to control or regulate the nozzle 9, which is provided for applying the middle glue line 8, so that the roller 26 is not glued over the entire circumference of its lateral surface. The non-glued outer surface sections of the roller 26 are then used to form the glue-free zones 14 on the base material strip 6 .
- Such a control or regulation of the nozzle 9 can take place, for example, by means of a valve.
- the roller 26 can preferably be driven by a drive, not shown, so that it can be rotated.
- the direction of rotation is shown in FIG. 1 by an arrow 16 and is selected in such a way that the surface of the roller 26 that is in contact with the strip of base material 6 rotates counter to the conveying direction 21 .
- the relative movement of the roller 26 relative to the strip of base material 6 that is associated with this allows the glue to get into the fibers of the base material strip 6 are rubbed in. This results in an improved bond between the glue and the strip of base material 6, which improves the overall gluing quality.
- the glued strip of base material 6 is then conveyed further to the joining device 11 by the first conveyor device 4 . There, the strip of base material 6 is brought together with the additional material 10 offset in the transverse direction and glued.
- the base material strip 6 is glued to an overlapping section of the additional material 10 by means of the uninterrupted line of glue 28 by a shaping section 20 of the joining device 11 .
- the strip of base material 6 bonded to the additional material 10 forms a tubular intermediate product 2, which becomes a tubular product by appropriate shortening.
- the tubular material is cut into predefined longitudinal sections by the cutting device 12.
- the cutting device 12 is synchronized with the first glue application device 25 to cut through the glue-free zones 14, so that there is no risk of sticking of the blade of the cutting device 12 can be reduced by glue that has not yet hardened.
- the corresponding interface 13 through the base material strip 6 is also indicated in the schematic representation of the glue pattern.
- the interrupted glue line 8 with the glue-free zones 14 has a significantly greater transverse extension than the two uninterrupted glue lines 27 and 28 together. From the- For this reason, the sticking of the blade of the cutting device 12 can be significantly reduced despite the cut through the two uninterrupted lines of glue 27 and 28 .
- FIGS. 2 to 6 are based on the embodiment according to FIG. In the following, therefore, only the resulting changes will be discussed.
- the first glue application device 25 is set up to apply the two interrupted glue lines 27 and 8 and the one uninterrupted glue line 28 to the base material strip 6 .
- the first glue application device 25 is set up to apply the two interrupted glue lines 27 and 8 and the one uninterrupted glue line 28 to the base material strip 6 .
- only one nozzle 9 is provided for the application of the interrupted glue lines 8 and 27 and the separate nozzle 23 for the uninterrupted glue line 28.
- the separation of the glue lines 8 and 27 in the transverse direction can be achieved by two separate outlet openings of the nozzle 9.
- the knife of the cutting device 12 only has to cut through the glued zone of the uninterrupted glue line 28 .
- the sticking of the knife by glue residues can thus be further reduced in comparison to the exemplary embodiment according to FIG.
- the nozzle 9 can have, for example, three separate outlet openings.
- the interfaces 13 run through the glue-free zones 14 of all three interrupted glue lines 8, 27 and 28, so that the blade of the cutting device 13 does not have to cut through a glued zone. Accordingly, in the device 1 according to this exemplary embodiment, sticking of the blade of the cutting device 12 with glue that has not yet hardened can be completely avoided.
- a rod-shaped product for example in the form of a cigarette filter, is produced instead of a tubular product.
- a wrapping sheet is provided as the base material 6 and a filter material for a cigarette filter, for example tow acetate or multi-filter segments, is provided as the additional material 10 .
- the device 1 shown in FIGS. 4 to 6 can, for example, be a so-called mono-filter machine.
- the additional material 10 is also supplied to the joining device 11 via a second conveyor device, which is not shown in FIGS.
- only a single interrupted line of glue 8 is provided in the form of a line of cold glue, which is applied to the strip of base material 6 by the first glue application device 25 .
- a second glue application device 17 is also provided, which is arranged after the first glue application device 25 in the conveying direction 21 . The second glue application device 17 is set up to apply an uninterrupted hot glue line 18 to the base material strip 6 .
- the base material strip 6 After the base material strip 6 has been glued by means of the first and second glue application devices 25 and 17 , the base material strip 6 is conveyed into the joining device 11 by means of the first conveyor device 4 . There, the additional material 10 in the form of a preferably cylindrical filter material is attached to the base material strip 6 by means of the interrupted line of glue 8 .
- the shaping section 20 uses the shaping section 20 to reshape the strip of base material 6 around the additional material 10 until the strip of base material 6 overlaps in an overlapping area in which the uninterrupted line of hot glue 18 is also arranged. As a result, two overlapping end portions of the strip of base material 6 are bonded to each other via the continuous line 18 of hot melt glue.
- the subsequent cutting by means of the cutting device 12 takes place at the cutting points 13 through the glue-free zones 14 of the first glue track 8, i.e. the cold glue track, and through the uninterrupted hot glue track 18. Since it has been shown that the knife of the cutting device 12 when cutting through the hot glue track 18 is less strongly bonded than when cutting through areas with cold glue, this can be accepted in favor of improved bonding.
- interrupted line of glue 27 applied in the form of a cold glue line In the exemplary embodiment according to FIG. 5, compared to the exemplary embodiment from FIG. interrupted line of glue 27 applied in the form of a cold glue line.
- the two glue tracks 27 and 8 are applied to the base material strip 6 via the roller 26 starting from the single nozzle 9 .
- two separate outlet openings of the nozzle 9 can be provided in order to separate the two traces of glue 8 and 27 from one another in the transverse direction.
- the additional material 10 is then glued to the strip of base material 6 by the two interrupted lines of glue 8 and 27 .
- the nozzle 9 preferably has three separate outlet openings.
- the cut by means of the cutting device 12 is accordingly made through the glue-free zones 14 of the glue lines 8, 27 and 28 and through the uninterrupted glue line 18.
- FIG. 7 schematically shows a method 22 for producing a rod-shaped or tubular product, the following steps being carried out: a) conveying a strip of base material in its longitudinal direction; b) application of at least one line of glue, which is interrupted in the longitudinal direction, to the base material strip so that glue-free zones are formed; c) merging the strip of base material with an additional material; d) reshaping and gluing the strip of base material to the additional material, so that an intermediate product in the form of a rope or tube is formed; e) Cutting up the strand-like or tubular intermediate product, the cutting up being effected by means of a cut through one of the glue-free zones 14.
- a tubular end product in the form of a drinking straw can be produced; for this purpose, for example, a device 1 according to the embodiments from FIGS. 1 to 3 can be used.
- a wrapping sheet is used for the base material strip 6 and a filter material for a cigarette filter is used as the additional material 10
- a rod-shaped end product in the form of a cigarette filter can be produced; for this purpose, for example, a device 1 according to the embodiments from FIGS. 4 to 6 can be used.
- FIG. 8 shows a tubular product 30 in the form of a drinking straw. It comprises a first longitudinal end 31 and a second longitudinal end 32, between which a longitudinal axis 33 of the product 30 extends. Furthermore, the product 30 comprises a tubular base body 34, formed by a strip of base material 6, which is glued by means of several traces of glue 8, 27 and 28 to an additional material 10 in the form of a strip of material.
- the base material strip 6 and the additional material 10 are paper strips in this exemplary embodiment.
- the traces of glue 8, 27, 28 connect the additional material 10 lying radially on the inside with the strip of base material 6 lying radially on the outside, so that the traces of glue 8, 27 and 28 would actually not be visible from the perspective shown in FIG. To clarify the arrangement of the glue tracks 8, 27 and 28, however, these are shown schematically by the hatched areas.
- the glue lines 8, 27 and 28 are formed by a biodegradable adhesive in this embodiment.
- the traces of glue 8, 27 and 28 do not extend to the first and second longitudinal ends 31 and 32 of the product 30, so that a glue-free zone 35 and 36 is provided at both ends 31, 32, which extends over the entire cross section of the product Product 30 extends.
- the extent a, b of the glue-free zone 34, 35 in the direction of the longitudinal axis 33 is between 0.5 mm and 1 mm in each case.
- the lengthwise axial extent a, b of the glue-free zone 35, 36 can also be between 0.5 mm and 10 mm.
- the product 30 shown in FIG. 8 in the form of a drinking straw can be produced, for example, using the device 1 shown in FIG.
- the product 30 can be manufactured by carrying out the method 22 shown schematically in FIG.
- the longitudinal ends 31 and 32 with the glue-free zones 35 and 36 are then created by cutting through the glue-free zone 14; see, for example, Figure 3.
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Abstract
Description
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Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020134003.6A DE102020134003A1 (de) | 2020-12-17 | 2020-12-17 | Vorrichtung und Verfahren zur Herstellung eines stab- oder rohrförmigen Artikels |
| PCT/EP2021/085233 WO2022128797A1 (de) | 2020-12-17 | 2021-12-10 | Vorrichtung und verfahren zur herstellung eines stab- oder rohrförmigen artikels sowie stab- oder rohrförmiges produkt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4263201A1 true EP4263201A1 (de) | 2023-10-25 |
Family
ID=79283106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21839355.1A Pending EP4263201A1 (de) | 2020-12-17 | 2021-12-10 | Vorrichtung und verfahren zur herstellung eines stab- oder rohrförmigen artikels sowie stab- oder rohrförmiges produkt |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4263201A1 (de) |
| DE (1) | DE102020134003A1 (de) |
| WO (1) | WO2022128797A1 (de) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102024101817A1 (de) * | 2024-01-23 | 2025-07-24 | Körber Technologies Gmbh | Hohlröhrchenherstellung |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4174720A (en) | 1977-04-26 | 1979-11-20 | Liggett Group Inc. | Glue transfer apparatus for cigarette filters |
| DE3013979A1 (de) | 1979-07-11 | 1981-01-29 | Hauni Werke Koerber & Co Kg | Verfahren und vorrichtung zum auftragen von leim auf einen bewegten verbindungsstreifen fuer rauchartikel |
| AU2001284488A1 (en) * | 2000-09-08 | 2002-03-22 | Japan Tobacco Inc. | Method and device for producing low flame propagation cigarette |
| DE10146019A1 (de) | 2001-09-18 | 2003-04-03 | Hauni Maschinenbau Ag | Einrichtung zum Zusammenstellen von Gruppen von Filtersegmenten zur Herstellung von Multisegmentfiltern der tabakverarbeitenden Industrie und Muldentrommel |
| DE102014213858B3 (de) | 2014-07-16 | 2015-11-12 | Hauni Maschinenbau Ag | Vorrichtung zum Auftragen einer Leimspur auf einen Umhüllungsstreifen eines stabförmigen Produktes der Tabak verarbeitenden Industrie |
| DE102017106992A1 (de) | 2017-03-31 | 2018-10-04 | Hauni Maschinenbau Gmbh | Verfahren zum Herstellen von wenigstens doppellagigen rohrförmigen Strängen der Tabak verarbeitenden Industrie sowie Vorrichtung zur Herstellung von wenigstens doppellagigen Strängen der Tabak verarbeitenden Industrie |
| DE102017108789A1 (de) | 2017-04-25 | 2018-10-25 | Hauni Maschinenbau Gmbh | Verfahren und Strangmaschine zum Herstellen von doppellagigen Röhrchen der Tabak verarbeitenden Industrie |
| DE102018132297B4 (de) * | 2017-12-20 | 2023-03-02 | G.D S.P.A. | Verfahren und Maschine zur Herstellung von Teilstücken eines zylindrischen rohrförmigen Strangs, der zur Herstellung von im Wesentlichen zylinderförmigen Rauchartikeln geeignet ist |
| IT201800004715A1 (it) * | 2018-04-24 | 2019-10-24 | Tubolare multistrato dell’industria del tabacco e metodo per la realizzazione di detto tubolare multistrato | |
| DE102019127563A1 (de) * | 2019-05-10 | 2020-11-12 | Hauni Maschinenbau Gmbh | Herstellen von Trinkhalmen aus Papier |
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2021
- 2021-12-10 EP EP21839355.1A patent/EP4263201A1/de active Pending
- 2021-12-10 WO PCT/EP2021/085233 patent/WO2022128797A1/de not_active Ceased
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| DE102020134003A1 (de) | 2022-06-23 |
| WO2022128797A1 (de) | 2022-06-23 |
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