EP3007570B1 - Method and shoe for pressing segments of multi-segment filter - Google Patents
Method and shoe for pressing segments of multi-segment filter Download PDFInfo
- Publication number
- EP3007570B1 EP3007570B1 EP14733721.6A EP14733721A EP3007570B1 EP 3007570 B1 EP3007570 B1 EP 3007570B1 EP 14733721 A EP14733721 A EP 14733721A EP 3007570 B1 EP3007570 B1 EP 3007570B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- segments
- shoe
- nozzles
- undersurface
- train
- 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.)
- Active
Links
- 238000003825 pressing Methods 0.000 title claims description 24
- 238000000034 method Methods 0.000 title claims description 9
- 238000004026 adhesive bonding Methods 0.000 claims description 4
- 238000007664 blowing Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 8
- 239000000853 adhesive Substances 0.000 description 7
- 230000001070 adhesive effect Effects 0.000 description 7
- 235000019504 cigarettes Nutrition 0.000 description 6
- 239000012634 fragment Substances 0.000 description 6
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 3
- 230000006837 decompression Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 241000208125 Nicotiana Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/02—Manufacture of tobacco smoke filters
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/02—Manufacture of tobacco smoke filters
- A24D3/0229—Filter rod forming processes
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/02—Manufacture of tobacco smoke filters
- A24D3/0229—Filter rod forming processes
- A24D3/0233—Filter rod forming processes by means of a garniture
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/02—Manufacture of tobacco smoke filters
- A24D3/0275—Manufacture of tobacco smoke filters for filters with special features
- A24D3/0287—Manufacture of tobacco smoke filters for filters with special features for composite filters
Definitions
- the object of the invention is a method and a shoe for pressing filter segments of a multi-segment filter.
- cigarettes provided with filters are manufactured whereas the filters can be made of a single kind of material or can be composed of various materials with different physical and filtering characteristics.
- the filter material in a continuous form such as acetate, is cut into rods and applied to cigarettes.
- filters manufactured of several concentrically arranged layers of the filter material are known. Filters having several segments of different materials are more and more frequently used in the cigarettes manufactured in present times.
- Machines for manufacturing multi-segment filter rods of continuous multi-segment filter rods are known in the prior art. Such machines combine the segments delivered from multiple feeding devices, whereas the segments are formed by cutting filter rods transferred for example on a drum conveyor using a cutting head provided with rotary knives.
- a very significant aspect of the production of filter rods of different known kinds is the quality of segment wrapping with a wrapper.
- the quality is determined by both the deformation of the wrapper in the region of an adhesive seam and the filling of the wrapper with the filter material.
- the filter segments can be subject to a momentary compression.
- Members for compression in the form of immovable pressing bars which heat up during the operation and lead to material damage are known in the prior art.
- the US patent 3,716,443 disclosed an apparatus for manufacturing filter rods of a continuous filter material wherein a member for forming a continuous filter rod was used, whereas such member is cooled by means of compressed air. Due to the use of compressed air a thin layer reducing the friction between the filter material and the guiding members is formed.
- a method for momentary compression of a continuous multi-segment rod by means of compressing rollers is known from the Polish patent application PL402777 .
- the patent WO 2006/000918 discloses an apparatus for the production of combined filters or recess filters for cigarettes comprising a feeder of filter segments, wrapper and combiner. It further discloses a method for the production of rods comprising a plurality of filter rod segments and moving a train of filter segments.
- Document US 6 059 706 A discloses an introducing tube supplied with an compressed air to increase interleaving of fibres within a tow of a filter material.
- Document US 5 163 452 A discloses a constraining tongue in a form of narrowing cone for forming an endless rod of filter material of a defined diameter from a tow of a filter material with a use of liquid applied to the tow to decrease depositing sticky substances on the inner side of the tongue.
- the problem to be solved by the present invention is to develop an improved apparatus and a method for compression of the filter material.
- the substance of the invention is a method according to claim 1, and in particular a method of pressing filter segments moving in a train of segments, wherein the filter segments are pressed by means of a shoe provided with a set of nozzles for blowing in compressed air supplied through ducts and the nozzles widen in the direction to the segments of the continuous multi-segment rod, whereas between the undersurface of the shoe and the filter segments laid on a guiding wrapper, before gluing and covering a train of segments with the wrapper, compressed air is supplied by means of ducts.
- the substance of the invention is a shoe according to claim 2 and in particular a shoe for pressing segments of a continuous multi-segment rod, wherein the undersurface for pressing the filter segments, laid on a guiding wrapper before gluing and covering a train of segments with the wrapper, is provided with a set of nozzles for blowing in compressed air supplied through ducts and the nozzles widen in the direction to the segments of the continuous multi-segment rod.
- a shoe according to the invention is characterised in that the nozzles are situated in at least one row, linearly, in principle along the axis of the train of segments, preferably 3 to 10 nozzles in a single row.
- a shoe according to the invention is characterised in that the rows of nozzles are arranged symmetrically to the axis of symmetry of the undersurface.
- a shoe according to the invention is characterised in that the rows of nozzles are arranged asymmetrically to the axis of symmetry of the undersurface.
- a shoe according to the invention is characterised in that its undersurface is a cylindrical surface.
- a shoe according to the invention is characterised in that the radius of the cylindrical surface is 1.5 to 10 times greater than the radius of the segments, preferably 2 to 5 times greater.
- a shoe according to the invention is characterised in that the undersurface is a flat surface.
- a shoe according to the invention is characterised in that the undersurface has grooves (18) distributing compressed air.
- a shoe according to the invention is characterised by being attached at an angle to the axis of the segments, in particular at an angle between 0.7° and 2°.
- a shoe according to the invention is characterised in that the ducts are situated in relation to the vertical direction at an angle in the range between 0° and 30°, preferably in the range between 10° and 20°.
- a shoe according to the invention is characterised in that the undersurface is situated asymmetrically to the axis of the segments.
- An advantage of the solution according to the invention is the combination of two functions, namely of pressing the segments and simultaneous cooling of the surface remaining in contact with the segments being pressed.
- Fig. 1 diagrammatically shows a fragment of a machine for manufacturing multi-segment rods.
- Filter segments S prepared beforehand in a known way are delivered by a delivery unit 101 onto a conveyor 102, whereas onto its surface a wrapper 103 is placed.
- the wrapper 103 is wrapped in a known way around the segments and glued, whereas the adhesive is delivered from an adhesive applying apparatus 104 and an adhesive seam is heated up by a heater 105.
- a multi-segment continuous rod CR formed in such a way moves further and is cut into filter rods FR by means of a known cutting head 106 provided with knives 107.
- Typical members supporting and guiding the continuous rod CR and the filter rods FR were omitted in the drawing.
- the segments are pressed by means of an apparatus 10 according to the invention.
- Fig. 2 shows a shoe 10 for pressing segments S. It is situated above a train of segments S, whereas the wrapper has not been shown, and the segments S are arranged along the axis SA.
- the members for fastening and for the adjustment of position of the shoe 10 in the directions X and Y as well as in the direction perpendicular to the plane of the paper, and for the adjustment of angular position in the plane of the drawing have not been shown in the drawing.
- the undersurface 11 of the shoe 10 is situated along the axis SA of the train of segments S, whereas it can be deflected from the axis SA by an angle ⁇ ranging between 0.7° and 2°, i.e.
- the pressure of the undersurface 11 on the segments S increases in the direction of movement T of the segments S and is greatest at point 12.
- the effect of pressing is intensified by the action of compressed air in principle at the entire length of the undersurface 11.
- the shoe 10 for pressing segments is supplied with compressed air from a source 13.
- the compressed air is distributed through ducts 14 and 15 ( Fig. 3 ), and then through ducts 16 to individual nozzles 17, whereas the nozzles 17 can have an outlet with a surface equal to the cross-section of the ducts 16 or greater.
- the compressed air acts on the segments S with a force F for each nozzle 17.
- the nozzles 17 can be situated in a row so that principally linear pressing of segments in the train of segments is achieved.
- Fig. 4 shows an enlarged fragment B of a longitudinal section of the shoe 10 of Fig.3 where the nozzles 17 have a dimension d similar to the diameter of the duct 16, whereas the nozzles are spaced at distances L to one another.
- the ducts 17 can be deflected from the vertical direction V by an angle ⁇ in the range between 0° and 30°, preferably in the range between 10° and 20°.
- Fig. 5 also shows an enlarged fragment of a section of the shoe 10A in which the nozzles 17A have a dimension D in the direction of the axis SA greater than the dimension d of Fig. 4 , whereas the nozzles are also spaced at distances L to one another.
- the dimension D is between 1.5 of the diameter and 5 of the diameter of the duct 16.
- the dimension D can be similar to the dimension L or the nozzles 17A can be joined with each other forming a duct used for pressing segments with compressed air.
- the use of multiple nozzles allows maintaining the pressure caused by the action of compressed air at a principally constant level.
- the surface 17B of the nozzle, which enlarges the nozzle 17A, can have a cylindrical or conical form.
- Fig. 6a shows a pressing undersurface 11 provided with nozzles 17 arranged in a single row along the axis of symmetry 11X
- the Fig. 6b also shows an undersurface 11A provided with holes 17 arranged in a row
- the row of the nozzles 17 is displaced from the axis of symmetry 11X of the undersurface 11A.
- Fig. 7a shows a pressing surface 111 provided with nozzles 17A arranged in a single row
- Fig. 7b also shows holes 17A arranged in a row
- the row of nozzles 17A is displaced from the axis of symmetry of the surface 111A
- Fig. 8a shows a pressing surface 211 on which a nozzle in the form of a duct 19 joining the outlets of the ducts 16 is embodied.
- a similar duct 19A is displaced from the axis of symmetry of the surface 211A.
- Fig. 9 shows another embodiment of the undersurface 311 of a pressing shoe with three rows of nozzles 17A.
- Fig. 10 shows an embodiment of the surface 411 with two rows of nozzles 17A, whereas the nozzles are situated asymmetrically to the axis of symmetry of the surface 411. The use of multiple rows allows a more uniform distribution of pressure on the segment surfaces.
- Fig. 11 shows another embodiment of the undersurface 511 of the shoe which is divided by the grooves 18 into multiple component surfaces 511A.
- the compressed air is supplied to the ducts 18 through the ducts 16.
- Fig. 12 shows a cross-section through a shoe 10 and a duct 16 marked as A-A in Fig. 2 , whereas here a wrapper 14 is shown on which the segments S are situated.
- a contour of the segment S without pressing is marked with a broken line
- the segment S' shows a segment after pressing by the force caused by the pressure of the shoe 10 and the action of compressed air.
- the undersurface 11 of the shoe can have a cylindrical form with an axis principally perpendicular to the axis AS of the train of segments S, whereas the radius R of the cylindrical surface is between 1.5 and 10 times, preferably between 2 and 5 times, greater than the radius r of the segment.
- Such proportions of the radius of the undersurface to the radius of the segment allow suitable lining of the deformed surface of the segment to the undersurface of the shoe.
- An embodiment of the undersurface of the shoe in the conical or flat form is also possible.
- Fig. 14 shows a shoe 10' provided with ducts 16 supplying compressed air at an angle ⁇ to the vertical direction V in the range between 5° and 20° so that the compression effect is strengthened. Due to an asymmetrical situation of the nozzles 17 relative to the segment S, it is possible to make a momentary pressing P ( Fig. 15 ) of the segment S laterally in relation to the adhesive seam G. After the decompression of material of the segment S the glued wrapper 14 will be filled as shown in Fig. 16 .
- Fig. 17 shows a section through a shoe 10" constructed in principle similar to the shoe 10' of Fig. 14 , whereas the surface 11" is situated asymmetrically to the segment S.
Landscapes
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Paper (AREA)
- Treatment Of Fiber Materials (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
Description
- The object of the invention is a method and a shoe for pressing filter segments of a multi-segment filter.
- In the tobacco processing industry, cigarettes provided with filters are manufactured whereas the filters can be made of a single kind of material or can be composed of various materials with different physical and filtering characteristics. The filter material in a continuous form, such as acetate, is cut into rods and applied to cigarettes. In addition, filters manufactured of several concentrically arranged layers of the filter material are known. Filters having several segments of different materials are more and more frequently used in the cigarettes manufactured in present times. Machines for manufacturing multi-segment filter rods of continuous multi-segment filter rods are known in the prior art. Such machines combine the segments delivered from multiple feeding devices, whereas the segments are formed by cutting filter rods transferred for example on a drum conveyor using a cutting head provided with rotary knives. Individual segments are combined, depending on the apparatus, next to one another on a drum conveyor or one after another on a linear conveyor in order to finally form a linearly moving continuous multi-segment rod being cut into individual multi-segment rods. At the further stages of the cigarette manufacturing process the multi-segment rods are cut into individual multi-segment filters applied to individual cigarettes.
- A very significant aspect of the production of filter rods of different known kinds is the quality of segment wrapping with a wrapper. The quality is determined by both the deformation of the wrapper in the region of an adhesive seam and the filling of the wrapper with the filter material. For the purpose of correct filling of the cylindrical space formed of the wrapper, the filter segments can be subject to a momentary compression. Members for compression in the form of immovable pressing bars which heat up during the operation and lead to material damage are known in the prior art. The
US patent 3,716,443 disclosed an apparatus for manufacturing filter rods of a continuous filter material wherein a member for forming a continuous filter rod was used, whereas such member is cooled by means of compressed air. Due to the use of compressed air a thin layer reducing the friction between the filter material and the guiding members is formed. - A method for momentary compression of a continuous multi-segment rod by means of compressing rollers is known from the Polish patent application
PL402777 - The patent
WO 2006/000918 discloses an apparatus for the production of combined filters or recess filters for cigarettes comprising a feeder of filter segments, wrapper and combiner. It further discloses a method for the production of rods comprising a plurality of filter rod segments and moving a train of filter segments. DocumentUS 6 059 706 A discloses an introducing tube supplied with an compressed air to increase interleaving of fibres within a tow of a filter material. - Document
US 5 163 452 A discloses a constraining tongue in a form of narrowing cone for forming an endless rod of filter material of a defined diameter from a tow of a filter material with a use of liquid applied to the tow to decrease depositing sticky substances on the inner side of the tongue. - The problem to be solved by the present invention is to develop an improved apparatus and a method for compression of the filter material.
- The substance of the invention is a method according to
claim 1, and in particular a method of pressing filter segments moving in a train of segments, wherein the filter segments are pressed by means of a shoe provided with a set of nozzles for blowing in compressed air supplied through ducts and the nozzles widen in the direction to the segments of the continuous multi-segment rod, whereas between the undersurface of the shoe and the filter segments laid on a guiding wrapper, before gluing and covering a train of segments with the wrapper, compressed air is supplied by means of ducts. - Furthermore, the substance of the invention is a shoe according to claim 2 and in particular a shoe for pressing segments of a continuous multi-segment rod, wherein the undersurface for pressing the filter segments, laid on a guiding wrapper before gluing and covering a train of segments with the wrapper, is provided with a set of nozzles for blowing in compressed air supplied through ducts and the nozzles widen in the direction to the segments of the continuous multi-segment rod.
- A shoe according to the invention is characterised in that the nozzles are situated in at least one row, linearly, in principle along the axis of the train of segments, preferably 3 to 10 nozzles in a single row.
- A shoe according to the invention is characterised in that the rows of nozzles are arranged symmetrically to the axis of symmetry of the undersurface.
- A shoe according to the invention is characterised in that the rows of nozzles are arranged asymmetrically to the axis of symmetry of the undersurface.
- A shoe according to the invention is characterised in that its undersurface is a cylindrical surface.
- A shoe according to the invention is characterised in that the radius of the cylindrical surface is 1.5 to 10 times greater than the radius of the segments, preferably 2 to 5 times greater.
- A shoe according to the invention is characterised in that the undersurface is a flat surface.
- A shoe according to the invention is characterised in that the undersurface has grooves (18) distributing compressed air.
- A shoe according to the invention is characterised by being attached at an angle to the axis of the segments, in particular at an angle between 0.7° and 2°.
- A shoe according to the invention is characterised in that the ducts are situated in relation to the vertical direction at an angle in the range between 0° and 30°, preferably in the range between 10° and 20°.
- A shoe according to the invention is characterised in that the undersurface is situated asymmetrically to the axis of the segments.
- An advantage of the solution according to the invention is the combination of two functions, namely of pressing the segments and simultaneous cooling of the surface remaining in contact with the segments being pressed.
- The object of invention is shown in detail in a preferred embodiment in a drawing in which:
-
Fig. 1 diagrammatically shows a fragment of a machine for manufacturing multi-segment rods, -
Fig. 2 shows a compressing shoe in a front view, -
Fig. 3 , that forms part of the invention, shows a longitudinal section of a compressing shoe offig. 2 , -
Fig. 4 , that doesn't form part of the invention, shows an enlarged fragment of section offig. 3 , -
Fig. 5 , that forms part of the invention, shows enlarged fragment of section offig. 3 , -
Fig. 6a, 6b show embodiments not forming part of the invention of undersurface of a compressing shoe provided with one row of nozzles, -
Fig. 7a, 7b show embodiments according to the invention of undersurface of a compressing shoe provided with one row of nozzles, -
Fig. 8a, 8b show embodiments not forming part of the invention of undersurface of a compressing shoe provided with a nozzle in the form of a duct, -
Fig. 9 shows an embodiment according to the invention of undersurface of a compressing shoe provided with three rows of nozzles, -
Fig. 10 shows an embodiment according to the invention of undersurface of a compressing shoe provided with two rows of nozzles, -
Fig. 11 shows an embodiment not forming part of the invention of undersurface of a compressing shoe provided with multiple grooves and multiple pressing surfaces, -
Fig. 12 and 13 show cross-sections of a compressing shoe with a vertical duct, -
Fig. 14 shows a cross-section of a compressing shoe with an inclined duct, -
Fig. 15 shows a cross-section of a compressed filter rod before decompression, -
Fig. 16 shows a cross-section of a filter rod after decompression, -
Fig. 17 shows a cross-section of an asymmetrical compressing shoe with an inclined duct. -
Fig. 1 diagrammatically shows a fragment of a machine for manufacturing multi-segment rods. Filter segments S prepared beforehand in a known way are delivered by adelivery unit 101 onto aconveyor 102, whereas onto its surface awrapper 103 is placed. During the transfer of segments on theconveyor 102 thewrapper 103 is wrapped in a known way around the segments and glued, whereas the adhesive is delivered from anadhesive applying apparatus 104 and an adhesive seam is heated up by aheater 105. A multi-segment continuous rod CR formed in such a way moves further and is cut into filter rods FR by means of a knowncutting head 106 provided withknives 107. Typical members supporting and guiding the continuous rod CR and the filter rods FR were omitted in the drawing. Before wrapping thewrapper 103 around the segments S and before delivering the adhesive from the adhesive applying apparatus, the segments are pressed by means of anapparatus 10 according to the invention. -
Fig. 2 shows ashoe 10 for pressing segments S. It is situated above a train of segments S, whereas the wrapper has not been shown, and the segments S are arranged along the axis SA. The members for fastening and for the adjustment of position of theshoe 10 in the directions X and Y as well as in the direction perpendicular to the plane of the paper, and for the adjustment of angular position in the plane of the drawing have not been shown in the drawing. Theundersurface 11 of theshoe 10 is situated along the axis SA of the train of segments S, whereas it can be deflected from the axis SA by an angle α ranging between 0.7° and 2°, i.e. the pressure of theundersurface 11 on the segments S increases in the direction of movement T of the segments S and is greatest atpoint 12. The effect of pressing is intensified by the action of compressed air in principle at the entire length of theundersurface 11. For this purpose, theshoe 10 for pressing segments is supplied with compressed air from asource 13. The compressed air is distributed throughducts 14 and 15 (Fig. 3 ), and then throughducts 16 toindividual nozzles 17, whereas thenozzles 17 can have an outlet with a surface equal to the cross-section of theducts 16 or greater. The compressed air acts on the segments S with a force F for eachnozzle 17. Thenozzles 17 can be situated in a row so that principally linear pressing of segments in the train of segments is achieved. -
Fig. 4 shows an enlarged fragment B of a longitudinal section of theshoe 10 ofFig.3 where thenozzles 17 have a dimension d similar to the diameter of theduct 16, whereas the nozzles are spaced at distances L to one another. Theducts 17 can be deflected from the vertical direction V by an angle β in the range between 0° and 30°, preferably in the range between 10° and 20°.Fig. 5 also shows an enlarged fragment of a section of theshoe 10A in which thenozzles 17A have a dimension D in the direction of the axis SA greater than the dimension d ofFig. 4 , whereas the nozzles are also spaced at distances L to one another. Preferably the dimension D is between 1.5 of the diameter and 5 of the diameter of theduct 16. The dimension D can be similar to the dimension L or thenozzles 17A can be joined with each other forming a duct used for pressing segments with compressed air. Preferably between 3 and 10 nozzles can be situated in one row. The use of multiple nozzles allows maintaining the pressure caused by the action of compressed air at a principally constant level. Thesurface 17B of the nozzle, which enlarges thenozzle 17A, can have a cylindrical or conical form.Fig. 6a shows apressing undersurface 11 provided withnozzles 17 arranged in a single row along the axis ofsymmetry 11X, whereas theFig. 6b also shows anundersurface 11A provided withholes 17 arranged in a row, whereas the row of thenozzles 17 is displaced from the axis ofsymmetry 11X of theundersurface 11A. -
Fig. 7a shows apressing surface 111 provided withnozzles 17A arranged in a single row, whereasFig. 7b also showsholes 17A arranged in a row, whereas the row ofnozzles 17A is displaced from the axis of symmetry of thesurface 111A.Fig. 8a shows apressing surface 211 on which a nozzle in the form of aduct 19 joining the outlets of theducts 16 is embodied. InFig. 8b , asimilar duct 19A is displaced from the axis of symmetry of thesurface 211A. -
Fig. 9 shows another embodiment of theundersurface 311 of a pressing shoe with three rows ofnozzles 17A.Fig. 10 shows an embodiment of thesurface 411 with two rows ofnozzles 17A, whereas the nozzles are situated asymmetrically to the axis of symmetry of thesurface 411. The use of multiple rows allows a more uniform distribution of pressure on the segment surfaces. -
Fig. 11 shows another embodiment of theundersurface 511 of the shoe which is divided by thegrooves 18 intomultiple component surfaces 511A. The compressed air is supplied to theducts 18 through theducts 16. -
Fig. 12 shows a cross-section through ashoe 10 and aduct 16 marked as A-A inFig. 2 , whereas here awrapper 14 is shown on which the segments S are situated. A contour of the segment S without pressing is marked with a broken line, whereas the segment S' shows a segment after pressing by the force caused by the pressure of theshoe 10 and the action of compressed air. Theundersurface 11 of the shoe can have a cylindrical form with an axis principally perpendicular to the axis AS of the train of segments S, whereas the radius R of the cylindrical surface is between 1.5 and 10 times, preferably between 2 and 5 times, greater than the radius r of the segment. Such proportions of the radius of the undersurface to the radius of the segment allow suitable lining of the deformed surface of the segment to the undersurface of the shoe. An embodiment of the undersurface of the shoe in the conical or flat form is also possible. -
Fig. 14 shows a shoe 10' provided withducts 16 supplying compressed air at an angle γ to the vertical direction V in the range between 5° and 20° so that the compression effect is strengthened. Due to an asymmetrical situation of thenozzles 17 relative to the segment S, it is possible to make a momentary pressing P (Fig. 15 ) of the segment S laterally in relation to the adhesive seam G. After the decompression of material of the segment S the gluedwrapper 14 will be filled as shown inFig. 16 .Fig. 17 shows a section through ashoe 10" constructed in principle similar to the shoe 10' ofFig. 14 , whereas thesurface 11" is situated asymmetrically to the segment S.
Claims (12)
- A method of pressing filter segments (S) moving in a train of segments in a direction (T) of an axis (SA), comprising the step of:supplying the train of filter segments along a longitudinal direction on a wrapper (103); wherein the method further comprises the steps of:pressing the filter segments by means of the undersurface (111, 111A, 311, 411) of a shoe (10, 10A) situated above the train of filtersegments, which shoe (10, 10A) is provided with a set of nozzles (17A) for blowing in compressed air supplied through ducts (14, 15, 16), and the nozzles (17A) widen in the direction (T) of movement of the segments (S) of the train of segments , andsuppling a compressed air by means of the ducts (14, 15, 16), before gluing and covering the train of segments with the wrapper.
- A shoe (10, 10A) for pressing filter segments (S) moving in a train of segments moving in a direction (T) of an axis (SA) wherein the undersurface (111, 111A, 311, 411) of the shoe, for pressing filter segments (S) laid on a wrapper (103) before gluing and covering the train of segments with the wrapper, is provided with a set of nozzles (17, 17A) for blowing in compressed air supplied through ducts (114, 15, 16), and the nozzles (17A) widen in the direction (T) of movement of the segments (S) of the train of segments.
- A shoe as in claim 2 characterised in that the nozzles (17, 17A) are situated in at least one row, linearly, in principle along the direction of an axis (SA) of the train of segments (S), preferably 3 to 10 nozzles in a single row.
- A shoe as in claim 2 to 3 characterised in that the rows of nozzles are arranged symmetrically in relation to the axis of symmetry of the undersurface (111, 111A, 311, 411).
- A shoe as in claim 2 to 3 characterised in that the rows of nozzles are arranged asymmetrically in relation to the axis of symmetry of the undersurface (111, 111A, 311, 411).
- A shoe as in any of the preceding claims characterised in that its undersurface (, 111, 111A, 311, 411) is a cylindrical surface.
- A shoe as in claim 6 characterised in that the radius (R) of the cylindrical surface is between 1.5 and 10 times greater than the radius (r) of the segments, preferably between 2 and 5 times greater.
- A shoe as in any of the claims 2 to 5 characterised in that the undersurface is a flat surface.
- A shoe as in any of the preceding claims characterised in that the undersurface has grooves (18) distributing compressed air.
- A shoe as in any of the preceding claims characterised in that the shoe (10, 10A,) is attached at an angle to the axis (SA) of the segments, in particular at an angle between 0.7° and 2°.
- A shoe as in any of the preceding claims characterised in that the ducts (14, 15, 16) are situated relative to the vertical direction (V) at an angle (β) in the range between 0° and 30°, preferably in the range between 10° and 20°.
- A shoe as in any of the preceding claims characterised in that the undersurface (10, 10A,) is situated asymmetrically to the axis of the segments (S).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL14733721T PL3007570T3 (en) | 2013-06-11 | 2014-06-09 | Method and shoe for pressing segments of multi-segment filter |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL404263A PL238487B1 (en) | 2013-06-11 | 2013-06-11 | Method and burnishing foot segment for the filter segments |
PCT/IB2014/062076 WO2014199284A1 (en) | 2013-06-11 | 2014-06-09 | Method and shoe for pressing segments of multi-segment filter |
Publications (2)
Publication Number | Publication Date |
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EP3007570A1 EP3007570A1 (en) | 2016-04-20 |
EP3007570B1 true EP3007570B1 (en) | 2020-04-15 |
Family
ID=51022935
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14733721.6A Active EP3007570B1 (en) | 2013-06-11 | 2014-06-09 | Method and shoe for pressing segments of multi-segment filter |
Country Status (7)
Country | Link |
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US (1) | US20160120215A1 (en) |
EP (1) | EP3007570B1 (en) |
JP (1) | JP6433997B2 (en) |
CN (1) | CN105307518B (en) |
PL (2) | PL238487B1 (en) |
RU (1) | RU2652017C9 (en) |
WO (1) | WO2014199284A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
PL223115B1 (en) | 2013-02-15 | 2016-10-31 | Int Tobacco Machinery Poland Spółka Z Ograniczoną Odpowiedzialnością | Method and apparatus for temporarily compressing the filtering material |
RU2719213C2 (en) * | 2015-08-24 | 2020-04-17 | Филип Моррис Продактс С.А. | Method of drying filter rods |
IT201900005856A1 (en) * | 2019-04-16 | 2020-10-16 | Gd Spa | DEVICE AND METHOD FOR THE TREATMENT OF A CONTINUOUS SEMI-FINISHED PRODUCT IN THE TOBACCO INDUSTRY |
CN116249460A (en) * | 2020-07-16 | 2023-06-09 | 国际烟草机械波兰有限责任公司 | Device for producing multi-segment rod-shaped articles |
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- 2013-06-11 PL PL404263A patent/PL238487B1/en unknown
-
2014
- 2014-06-09 RU RU2015154475A patent/RU2652017C9/en active
- 2014-06-09 US US14/896,798 patent/US20160120215A1/en not_active Abandoned
- 2014-06-09 EP EP14733721.6A patent/EP3007570B1/en active Active
- 2014-06-09 PL PL14733721T patent/PL3007570T3/en unknown
- 2014-06-09 JP JP2016518616A patent/JP6433997B2/en not_active Expired - Fee Related
- 2014-06-09 CN CN201480033580.2A patent/CN105307518B/en active Active
- 2014-06-09 WO PCT/IB2014/062076 patent/WO2014199284A1/en active Application Filing
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Also Published As
Publication number | Publication date |
---|---|
RU2652017C2 (en) | 2018-04-24 |
WO2014199284A1 (en) | 2014-12-18 |
RU2652017C9 (en) | 2018-06-29 |
PL404263A1 (en) | 2014-12-22 |
JP6433997B2 (en) | 2018-12-05 |
JP2016521560A (en) | 2016-07-25 |
RU2015154475A (en) | 2017-07-14 |
US20160120215A1 (en) | 2016-05-05 |
CN105307518A (en) | 2016-02-03 |
PL238487B1 (en) | 2021-08-30 |
PL3007570T3 (en) | 2020-08-10 |
CN105307518B (en) | 2020-06-30 |
EP3007570A1 (en) | 2016-04-20 |
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