EP2145553A1 - Zubehörzunge für eine Filterherstellungsvorrichtung - Google Patents
Zubehörzunge für eine Filterherstellungsvorrichtung Download PDFInfo
- Publication number
- EP2145553A1 EP2145553A1 EP08160363A EP08160363A EP2145553A1 EP 2145553 A1 EP2145553 A1 EP 2145553A1 EP 08160363 A EP08160363 A EP 08160363A EP 08160363 A EP08160363 A EP 08160363A EP 2145553 A1 EP2145553 A1 EP 2145553A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filter
- protrusion
- garniture tongue
- filter tow
- guide surface
- 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.)
- Withdrawn
Links
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
- A24D3/0229—Filter rod forming processes
- A24D3/0233—Filter rod forming processes by means of a garniture
Definitions
- the present invention relates to a garniture tongue for a filter making apparatus.
- a filter making apparatus is used for example in the manufacturing of filter elements for smoking articles, such as cigarettes.
- Filter making apparatuses are generally known in the art, for example from the International patent application WO 03/082558 .
- the filter tow material for example cellulose acetate tow
- the tow material is drawn from a bale and is subsequently transported to the filter making apparatus.
- the tow material is bloomed by a series of rollers running at different speeds, thereby significantly increasing the volume of the tow material.
- the bloomed filter tow is then converged into a transport jet 3 as shown in Fig. 1 .
- the filter tow material is then fluffed by the injection of compressed air supplied via a suitable arrangement (not shown) to the transport jet 3.
- the fluffed filter tow material is further converged by the air funnel 4 before entering under a garniture tongue 5.
- the garniture tongue 5 guides the converging filter tow material exiting from transport jet 3 and air funnel 4 into a standard garniture downstream of outlet end 2 where the filter tow is shaped to rod form having a circular cross section.
- the resulting continuous rod is then wrapped with a plug wrap and the plug wrap is secured with an overlapping and adhesively bonded seam. Finally, the continuous rod of wrapped filter material is cut into rods of defined length and transported to a cigarette maker.
- a garniture tongue for a filter making apparatus comprising a guide surface capable of guiding filter tow running over the guide surface, and further comprising means arranged on the guide surface for laterally deflecting the filter tow.
- the laterally deflected filter tow may then be directly formed into an oval or elliptic shape.
- the major axis of the oval cross section of the filter rod generally coincides with the direction of lateral deflection of the filter tow material.
- Such a garniture tongue is particularly suitable for the formation of oval filter rods.
- the means for laterally deflecting the filter tow forces the fibres of the tow aside laterally to flatten and widen the filter tow.
- the tow Upstream of the means for laterally deflecting the tow, the tow has essentially a circular cross section.
- the tow assumes for a short period two more or less separate streams, each with a more or less circular cross section.
- the fibres of the two smaller streams of tow partially regroup such that the area between the two streams of tow is filled again while the two smaller streams of tow expand into the available space.
- downstream is used to indicate the position of an element relative to another in a direction that follows the flow of filter tow through the filter making apparatus.
- upstream is used to indicate the position of an element relative to another in a direction that is opposite of the downstream direction.
- the means for laterally deflecting the filter tow comprises at least one protrusion which is arranged on the guide surface.
- a second protrusion is located downstream of the first protrusion.
- the first protrusion has larger outer dimensions than the second protrusion.
- the protrusions are a particularly effective deflecting means. They may have any suitable shape, such as for example spherical, pyramidal, cylindrical, conical, frustoconical, prismatic, polyhedronical, egg-shaped or drop shaped.
- the protrusion or protrusions may reach partly into the stream of tow or up to the centre of the stream of tow, beyond the centre of the stream of tow or may completely split the stream of tow flowing over and past the protrusion or protrusions.
- the shape of the protrusion or protrusions is spherical.
- the term "spherical” is meant to include any parts of a sphere, in particular semi-spheres or larger or smaller parts of a sphere. This is applicable similarly for the other shapes of the protrusions mentioned above.
- pyramidal, cylindrical, conical, frustoconical, prismatic are meant to include all kinds of base shapes.
- base shapes are triangular, rectangular, pentagonal, hexagonal, octagonal or parts thereof, circular, semi-circular, oval, elliptical, ring shaped, pie slice shaped or parts thereof.
- circular is meant to include any parts of a circle, in particular semi-circle or larger or smaller parts and slices of a circle, comprising at least one rounded edge. This is applicable similarly for the other geometrical shapes mentioned above.
- the at least one bead is glued, welded, soldered, riveted, screwed clamped or otherwise permanently or removably attached to the surface of the garniture tongue.
- the garniture tongue is removably attached to the filter making apparatus in order to facilitate easy exchange of the garniture tongue.
- the at least one protrusion is made of a material that has a hard, smooth surface that shows little abrasion during use.
- the at least one protrusion is made from steel.
- the flat surface has at least one hole as a seat for the protrusion.
- the garniture tongue may have a semi-circular hole or cavity into which an essentially spherical bead is inserted such that only a semi-circular protrusion of the bead is in the path of the moving filter tow.
- the guide surface comprises a channel.
- the channel is open on its side facing the filter tow and the means for laterally deflecting the filter tow are arranged in the channel.
- the protrusion are arranged in the channel.
- the means for laterally deflecting the filter tow comprise a protrusion being arranged in the channel and extending longitudinally in the direction of movement of the filter tow.
- this protrusion may have a circular shape when viewed in cross-section.
- the protrusion may have a gull-wing shape when viewed in cross-section. While the afore-mentioned two embodiments of the protrusion are advantageous, other cross-sectional shapes of the protrusion are conceivable as well.
- the extension of the protrusion into the channel diminishes in a downstream direction.
- the garniture tongue may comprise a tip having a flat guide surface.
- the means for laterally deflecting the filter tow like the above-mentioned protrusions are arranged on the flat surface of the tip.
- Fig. 2 and Fig. 3 show a first embodiment of a tongue 6 according to the invention.
- An inclined channel 60 is indicated in dashed lines in Fig. 2 .
- the inclined channel 60 converges in the downstream direction towards its end 600.
- the channel 60 is open on one side.
- Adjacent to the end 600 of the channel 60 the garniture tongue 6 has a flat surface 61 at its tip 64.
- On the tip 64 of the flat surface 61 two protrusions in the form of semi-spherical beads 62, 63 are arranged.
- the outer dimension or volume of the first bead 62 is larger than that of the second downstream bead 63.
- the direction of flow of the filter tow in the embodiment shown is from left to right.
- the garniture tongue 6 may be arranged upside down such that the flat surface 61 of the garniture tongue 6 faces downwards rather than upwards as shown. This has no influence on the functioning of the garniture tongue 6 according to the invention. The same is true for the further embodiments of the garniture tongues 7, 8, 9 shown in Fig. 4 to Fig. 7
- the filter tow material runs through the channel 60 and the fibres of the filter tow material are converged and compressed towards the garniture tongue's end 600 due to the geometry of the channel 60.
- the fibres of the filter tow material are deflected laterally by the beads 62, 63. While semi-circular beads 62, 63 are shown in this embodiment by way of example, the beads 62, 63 may have any other suitable shape.
- the deflected fibres of the filter tow material regroup downstream of the beads 62, 63. This allows the formation of an oval filter rod during further process steps.
- the oval filter rod may then be cut into individual oval filters of a desired length, typically a multiple of the final filter length of a cigarette filter.
- FIG. 4 A second embodiment of the garniture tongue according to the invention is shown in Fig. 4 .
- the channel 70 is again converging towards its end 700.
- the garniture tongue 7 has no flat upper surface over which the filter tow material runs. Instead, the beads 72, 73 are arranged inside the channel 70.
- the filter tow material runs through the channel 70 and is converged and compressed towards the garniture tongue end 700 due to the geometry of the channel 70. Upon reaching the beads 72, 73, the fibres are deflected laterally.
- a third embodiment of the tongue according to the invention is shown in Fig. 5 and Fig. 6 .
- the garniture tongue 8 has no discrete beads arranged in the channel 80. Instead, a continuous protuberance 82 as protrusion extends longitudinally along the channel 80.
- the protuberance 82 has a circular shape when viewed in cross-section, in particular it is semi-circular as shown in Fig. 6 .
- the protuberance 82 may have any other suitable cross-sectional shape.
- the filter tow material is converged due to the converging geometry of channel 80, and at the same time the fibres of the filter tow material are laterally deflected by the protuberance 82.
- the deflected fibres regroup downstream of the channel 80.
- Fig. 7 shows the channel 90 of a fourth embodiment of the garniture tongue 9 according to the invention.
- the protuberance 92 has a gull-wing shape.
- the filter tow material runs through channel 90, it is converged due to the converging geometry of channel 90, and at the same time the fibres of the filter tow material are deflected laterally by the gull-wing shaped protuberance 92..
- the deflected fibres regroup downstream of the channel 90.
Landscapes
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08160363A EP2145553A1 (de) | 2008-07-14 | 2008-07-14 | Zubehörzunge für eine Filterherstellungsvorrichtung |
PCT/EP2009/058913 WO2010007020A1 (en) | 2008-07-14 | 2009-07-13 | Garniture tongue for a filter making apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08160363A EP2145553A1 (de) | 2008-07-14 | 2008-07-14 | Zubehörzunge für eine Filterherstellungsvorrichtung |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2145553A1 true EP2145553A1 (de) | 2010-01-20 |
Family
ID=40085650
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08160363A Withdrawn EP2145553A1 (de) | 2008-07-14 | 2008-07-14 | Zubehörzunge für eine Filterherstellungsvorrichtung |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2145553A1 (de) |
WO (1) | WO2010007020A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011116760A1 (de) | 2011-10-20 | 2013-04-25 | Carl Zeiss Meditec Ag | Ophthalmologisches Lasersystem und Verfahren zur laserchirurgischen Behandlung der Cornea |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3624722A (en) * | 1969-04-10 | 1971-11-30 | Molins Machine Co Ltd | Continuous rod making machines |
US3813996A (en) * | 1971-04-15 | 1974-06-04 | F Labbe | Continuous filter rod making machines |
WO2003082558A1 (en) | 2002-03-29 | 2003-10-09 | Philip Morris Products S.A. | Method and apparatus for making cigarette filters with a centrally located flavored element |
-
2008
- 2008-07-14 EP EP08160363A patent/EP2145553A1/de not_active Withdrawn
-
2009
- 2009-07-13 WO PCT/EP2009/058913 patent/WO2010007020A1/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3624722A (en) * | 1969-04-10 | 1971-11-30 | Molins Machine Co Ltd | Continuous rod making machines |
US3813996A (en) * | 1971-04-15 | 1974-06-04 | F Labbe | Continuous filter rod making machines |
WO2003082558A1 (en) | 2002-03-29 | 2003-10-09 | Philip Morris Products S.A. | Method and apparatus for making cigarette filters with a centrally located flavored element |
Also Published As
Publication number | Publication date |
---|---|
WO2010007020A1 (en) | 2010-01-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA MK RS |
|
AKY | No designation fees paid | ||
REG | Reference to a national code |
Ref country code: DE Ref legal event code: 8566 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20100721 |