EP2893821A1 - Boîtier de canal pour un manchon d'élargisseur destiné à élargir le filament utilisé pour la fabrication de filtres de cigarette et procédé d'élargissement de filament - Google Patents

Boîtier de canal pour un manchon d'élargisseur destiné à élargir le filament utilisé pour la fabrication de filtres de cigarette et procédé d'élargissement de filament Download PDF

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Publication number
EP2893821A1
EP2893821A1 EP14198924.4A EP14198924A EP2893821A1 EP 2893821 A1 EP2893821 A1 EP 2893821A1 EP 14198924 A EP14198924 A EP 14198924A EP 2893821 A1 EP2893821 A1 EP 2893821A1
Authority
EP
European Patent Office
Prior art keywords
channel
wall
tow
nozzle
housing
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.)
Granted
Application number
EP14198924.4A
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German (de)
English (en)
Other versions
EP2893821B1 (fr
Inventor
Andreas Tönsmann
Jann De Boer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koerber Technologies GmbH
Original Assignee
Hauni Maschinenbau GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hauni Maschinenbau GmbH filed Critical Hauni Maschinenbau GmbH
Priority to PL14198924T priority Critical patent/PL2893821T3/pl
Publication of EP2893821A1 publication Critical patent/EP2893821A1/fr
Application granted granted Critical
Publication of EP2893821B1 publication Critical patent/EP2893821B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A24D3/0204—Preliminary operations before the filter rod forming process, e.g. crimping, blooming
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/18—Separating or spreading

Definitions

  • the invention relates to a channel housing for a spreader nozzle for spreading tow used for the production of cigarette filters, having a substantially plate-shaped nozzle wall and a substantially plate-shaped channel wall, wherein between the channel wall and the nozzle wall a tow guide channel is formed with a Toweintrittsö réelle and an opposite Towaustrittsö réelle , and further wherein the nozzle wall has a gas supply channel through which gas can be fed into the tow guide channel.
  • the invention further relates to a method for spreading tow used for the production of cigarette filters, comprising the steps of guiding tow in a tow guide channel from a tow inlet opening to an opposite tow outlet opening, wherein the tow guide channel is located in a channel housing between a substantially plate-shaped nozzle wall and an in the formed substantially plate-shaped channel wall, supplying gas into the Tow Equipmentskanal by a gas supply channel of the nozzle wall.
  • Tow produces filter rods for cigarettes.
  • towers which the tow to be processed in the form of a continuous strip, strip or strand of a towball peel off and then subject to various processing steps.
  • a tow-moulder is usually part of a plant for producing filter rods and contains various processing equipment that passes through the tow. These arrangements also include, for example, an array of stretching rollers for tensioning and relaxing the tow. The individual threads of the Tows are detached from each other, making the entire tow bulky.
  • so-called spreader nozzles are used, which spread the tow to achieve a larger attack surface in the Towfädenaposzelung.
  • the spreader nozzle is usually provided by the entry of the tow into the towmaker or at least before the arrangement of the stretching rollers.
  • a gas stream exits, wherein the gas is preferably air and the gas is also preferably under pressure, in particular compressed air can be used.
  • the gas is introduced into the tow guide channel via a gas supply channel in the nozzle wall.
  • the Tow entryskanal is formed between the channel wall and the nozzle wall parallel to a Tow entrysebene, wherein the tow is guided in a Tow entryscardi from the Toweinlingersö réelle through the Tow entryskanal to the opposite Towaustrittsö Maschinen.
  • the Gaszu 1500kanal the nozzle wall is formed in such a rule that a gas stream preferably approximately orthogonal to the Tow Equipmentscardi or Tow Equipmentsebene exits the nozzle wall, causing a spread or broadening of Tows substantially orthogonal to the Tow Equipmentscardi, but substantially within or parallel to the Tow Equipmentsebene results.
  • the spreading of the tow into a substantially flat band or strip shape and / or the enlargement of the width of the tow is essentially orthogonal to the direction of the direction of the tow, but substantially within or parallel to the tow guide plane, by fanning, spreading or spreading Open understood.
  • Spreader nozzles for spreading tow are known, for example, from US Pat EP 1 096 047 A1 and the DE 10 2008 003 369 A1 known.
  • a channel housing for a spreader nozzle for spreading tow used for the production of cigarette filters having a substantially plate-shaped nozzle wall and a substantially plate-shaped channel wall, wherein between the channel wall and the nozzle wall a Tow entryskanal with a Toweintrittsö réelle and an opposite Towaustrittsö réelle is formed, and further wherein the nozzle wall has a gas supply channel, can be fed through the gas in the Tow enclosureskanal, characterized in that a depth of the Tow Unitskanals between the channel wall and the nozzle wall is variable.
  • the channel housing forms a Tow arrangementkanal through the nozzle wall and the channel wall, which are preferably parallel to each other and further preferably arranged parallel to the Tow Equipmentsebene and further preferably orthogonal to the Tow Equipmentsebene spaced apart.
  • the nozzle wall and the channel wall are preferably formed and aligned so that they are aligned with respective first broad long sides to the Tow Equipmentskanal out and preferably the broad long sides are aligned parallel to the Tow entrysebene.
  • the tow guide channel is laterally, that is orthogonal to the Tow entrysoplasty and within or parallel to the Tow Entrysebene, ie between the channel wall and the nozzle wall, limited, for example, by side walls, whereby a maximum tow width can be specified.
  • the depth of the Tow exchangeskanals that is, the distance between the channel wall and the nozzle wall, in particular between the two the Tow Replacementskanal facing broad long sides of the channel wall and the nozzle wall is changeable.
  • the channel housing of the spreader nozzle is adapted to generate tow in the form of a continuous band, strip or strand, which is not only spread to a, preferably predetermined or desired width, but also - depending on the setting of the depth of the Tow Entryskanals between the channel wall and the nozzle wall - may have a different depth or thickness.
  • the dimension of the processed tow can be adapted to different final products to be produced, for example filter filters of normal diameter or filters of smaller diameter (so-called "slimline").
  • the channel housing according to the invention makes it possible to make such an adjustment quickly and easily by changing the distance between the channel wall and the nozzle wall, without the channel housing or parts thereof having to be exchanged in a complex process. In this way, changeover times can be reduced become. Further, the storage and provision of replacement parts that would be required for conventional retrofitting of a spreader nozzle can be reduced or avoided.
  • a preferred embodiment of the channel housing provides that the channel wall can be fastened in a first and in a second position, wherein the depth of the tow guide channel is smaller in the first position of the channel wall than in the second position of the channel wall.
  • the channel wall is preferably releasably securable in the first and in the second position and further preferably, at least indirectly, attached to the nozzle wall. Due to the possibility of fastening the channel wall in a first and in a second position, and in that the first and the second position of the channel wall lead to two different depths of the tow guide channel, the channel wall therefore has a smaller distance from the nozzle wall in the first position as in the second position, the depth of the Tow entryskanals can be changed in a particularly simple manner. Furthermore, it may be preferred that, in addition to the first and the second position, the channel wall can also be fastened in a third, fourth or further position, wherein the depth of the tow guide channel differs in the different positions of the channel wall.
  • an embodiment of the channel housing is preferred in which in the first position of the channel wall, a first wide long side of the channel wall facing the Tow Equipmentskanal and in the second position of the channel wall, a second, the first opposite, wide long side of the channel wall facing the Tow Equipmentskanal.
  • the two positions of the channel wall differ in whether the first broad long side of the channel wall or the second, opposite the first, wide long side of the channel wall facing the Tow Entryskanal.
  • the first position the first broad long side of the channel wall in a direction orthogonal to the Tow entryscardi or Tow Unitsebene a smaller distance from the nozzle wall than the second, the first opposite, wide long side of the channel wall in the second position.
  • the channel wall When adjusting the channel wall from the first to the second position and back there is thus a change in position of the channel wall such that a Tow Equipmentskanal initially facing away from the broad long side after the change of position Tow Equipmentskanal faces and vice versa.
  • the first and the long side of the channel wall in both positions are aligned substantially parallel to the Tow Equipmentscardi or Tow Unitsebene.
  • the channel wall or at least a part thereof, is rotatable about an axis of rotation, at least indirectly, fixed to the nozzle wall.
  • the change from the first position of the channel wall to the second position of the channel wall and back can preferably take place in that the channel wall, or at least a part thereof, is pivoted, rotated and / or turned, preferably by 180 °.
  • the channel wall, or at least a part thereof is rotatable about an axis of rotation and further preferably at least indirectly fixed to the nozzle wall. In this way, the channel wall, or at least a part thereof, can be rotated, in particular to perform a position change.
  • a change from the first to the second position of the channel wall and back preferably takes place by a rotation of the channel wall, or at least a part thereof, about the axis of rotation by 180 ° in the counterclockwise direction.
  • the axis of rotation of the channel wall preferably runs parallel to the two broad long sides of the channel wall and furthermore preferably, in particular with respect to the maximum external dimensions of a substantially plate-shaped or cuboid channel wall, centrally or centrally with respect to the two shorter sides with respect to the longitudinal extension.
  • the first wide long side of the channel wall in a direction orthogonal to a Tow Equipmentscardi or to the Tow Equipmentsebene a greater distance from the axis of rotation of the channel wall than the second, the first opposite, wide long side of the channel wall.
  • the first broad long side is thus preferably further spaced from this axis of rotation than the second wide long side.
  • the second wide long side of the channel wall is thus closer to the axis of rotation than the first broad long side.
  • the channel wall is fixed to the nozzle wall such that the channel wall can be brought from the first position by a rotation about its axis of rotation by 180 ° in the second position, and vice versa.
  • a change of positions essentially means a turning of the channel wall, through which the Tow Equipmentskanal facing broad long side of the channel wall can be changed.
  • the channel wall has a channel element and a pivoting element, wherein the channel element is rotatably attached to the pivot member about the axis of rotation of the channel wall and pivotally attached to the pivot wall about a pivot axis preferably orthogonal to the axis of rotation of the channel wall is.
  • the first and second wide long side of the channel wall are preferably formed on the channel member and can be rotated by a rotation of the channel member about a rotation axis, so that in the first position, the first wide long side of the channel element and in the second position, the second wide long side the channel element facing the Tow Equipmentskanal.
  • the axis of rotation of the channel element is preferably identical to the axis of rotation of the channel wall, wherein as the axis of rotation of the channel wall in this embodiment, the axis of rotation is to understand the channel element can be rotated.
  • the channel element is rotatably mounted on a pivot member, and the pivot member is in turn - at least indirectly - attached to the nozzle wall.
  • the pivot member is pivotally mounted about a pivot axis on the nozzle wall.
  • the pivot axis about which the pivoting element can be pivoted is preferably formed orthogonal to the axis of rotation of the channel wall or of the channel element.
  • the pivot axis extends in the Tow Equipmentsebene or parallel to this.
  • the pivoting element is designed and arranged such that it can be pivoted by up to 90 °, up to 180 ° or up to 270 ° about the pivot axis.
  • the pivoting element is preferably arranged on one of the two end sides of the channel wall.
  • front side is here meant the region of the substantially plate-shaped channel wall, which is formed substantially orthogonal to the two broad long sides and substantially orthogonal to the two narrow long sides of the channel wall.
  • the pivoting element is preferably arranged such that - for example, starting from the first position of the channel wall - by pivoting the pivot member sufficient space between the channel member and the nozzle wall is released, so that the channel element can rotate around the rotation axis without touching the nozzle wall to the second broad long side of the channel element turn to Tow Equipmentskanal.
  • the pivoting element can preferably be swung back again, so that the channel wall is then turned with the channel element and intimidgeschwenktem pivot element in the second position, in which the second wide long side of the channel member facing the Tow Equipmentskanal.
  • channel element and the pivoting element in the first and / or in the second position of the channel wall in at least one direction are connected to each other by a positional connection, preferably by a releasable positive connection and / or a releasable butt joint.
  • the positional connection between the channel member and the pivot member designates that connection between the channel member and the pivot member connecting the two members in the first and / or second position of the channel wall.
  • This positional connection is preferably a releasable connection and in particular can be released to move the channel wall from the first to the second position and back.
  • the positional connection between the channel element and the swivel element can be released in order to rotate the channel element relative to the swivel element, preferably by 180 °, in order to change the broad long side of the channel element facing the tow guide channel.
  • the positional connection is preferably used in the first and / or in the second position of the channel wall to securely position the channel element on the pivot element, so that during operation of the spreader nozzle, the depth of the tow guide channel in the respective position of the channel wall is maintained and is not changed, for example, by emerging from the gas supply duct compressed air.
  • the positional connection can be designed as a releasable positive connection and / or releasable butt joint.
  • the positional connection may comprise one or more projections on the pivoting element and one or more corresponding recesses or recesses on the channel element.
  • one or more projections may be provided on the channel element, which engage correspondingly in one or more recesses or depressions on the pivoting element.
  • the positional connection between the channel element and the pivoting element in the first and / or in the second position with a bias voltage, preferably in the direction of the axis of rotation of the channel wall, is acted upon.
  • the loading of the positional connection with a bias in the first and / or in the second position has the advantage that the positional connection can not be accidentally or unintentionally, but can be solved only by overcoming the bias.
  • the positional connection between the channel element and the pivoting element by a, preferably substantially rectilinear, movement of the channel member in the direction of the axis of rotation of the channel wall, preferably by overcoming the bias, is releasable.
  • the positional connection between the channel element and the pivoting element is preferably detachable by a, preferably substantially rectilinear, removal of the channel element from the pivoting element, in particular in the direction of the axis of rotation of the channel wall.
  • the bias voltage with which the positional connection is applied overcome.
  • the positional connection can be released by pulling the channel element away from the pivoting element.
  • the channel housing may be configured such that the channel element can be grasped in the first position by a user and can be pivoted together with the pivoting element about the pivot axis with the positional connection not yet released.
  • the channel element can preferably be pulled away from the user by the pivot element, so that the positional connection between the channel element and the pivot element is released, and the channel element are then rotated by the user about the rotation axis by 180 ° and - preferably connected by the bias voltage - again by the positional connection with the pivot member and can be pivoted back together with the pivoting element.
  • a further preferred embodiment of the channel housing is characterized by a guide element, which is preferably fastened to the channel element and is designed to guide the channel element in a, preferably rectilinear, movement relative to the pivot element, preferably in the direction of the axis of rotation of the channel wall.
  • Such a guide element can for example produce a permanent connection between the channel element and the pivoting element.
  • the guide element serves to guide a relative movement between the channel element and the pivot element, that is to limit in at least one direction of movement.
  • the guide element may for example be designed rod-shaped and be guided in a corresponding recess or in a corresponding blind hole.
  • the guide element may be formed, for example, on the channel element or on the pivoting element, or both the channel element and the pivoting element may provide guide elements, wherein the belonging to a guide element blind hole or a corresponding depression is then preferably formed on the respective other element.
  • a particularly preferred embodiment results from the fact that the guide element, preferably longitudinally displaceable, is guided through the pivot element, wherein preferably the bias is realized by arranging a spring between an end of the guide element protruding from the pivot element and the pivot element.
  • the guide element is preferably rod-shaped and arranged on the channel element and also preferably guided longitudinally displaceable through the pivot member.
  • the protruding from the pivot member end of the guide member is also preferably biased by a spring against the pivot member, so that the positional connection between the channel member and the pivot member can be solved only against the bias.
  • the channel element has opposite channel element ends which laterally delimit the tow guide channel, preferably the channel element ends projecting relative to the first and second broad long sides and furthermore preferably the channel element ends in the first and / or second position of the channel wall Touch the nozzle wall.
  • a lateral boundary of the tow guide channel orthogonal to the direction Tow entryscardi and in Tow Equipmentsebene preferably takes place by channel element ends of the channel element.
  • the two channel element ends each have two opposite outer surfaces, which are preferably aligned parallel to the first and second wide long sides of the channel element.
  • the two opposite outer surfaces of a channel element end preferably have the same distance to the axis of rotation of the channel wall in a direction orthogonal to the Tow entryscardi or Tow Unitsebene, that is, the two outer surfaces of a Kanalettindes jump different distances from the first and second broad long side.
  • contact in this way the outer surfaces of the channel element ends both in the first and in the second position of the channel wall, the nozzle wall and in this way can limit the Tow Entryskanal side.
  • the extent to which the outer surfaces of the channel element end project in relation to the first and second wide long sides of the channel element preferably corresponds to the different depths of the tow guide channel in the first and second position of the channel wall.
  • the channel wall has at least one marking for marking the first position and / or the first wide long side and / or the second position and / or the second wide long side.
  • Such a marking has the advantage that a user can quickly recognize whether the channel wall is in the first or in the second position or which of the long long sides faces the tow guide channel. Since the depth of the tow guide channel in both positions can differ only by an amount difficult to detect with the eye, such a mark reduces an inadvertent incorrect adjustment of the depth of the tow guide channel.
  • the object mentioned at the outset is achieved by a method for spreading out used for the production of cigarette filters Tow, comprising the steps of: guiding tow in a tow guide channel from a tow inlet opening to an opposite tow outlet opening, the tow guide channel being formed in a channel housing between a substantially plate-shaped nozzle wall and a substantially plate-shaped channel wall; and supplying gas into the tow guide channel through a gas supply channel of the nozzle wall; characterized by the step of: changing a depth of the tow guide channel between the channel wall and the nozzle wall.
  • FIGS. 1 to 4 there is shown a channel housing 1 for a spreader nozzle for spreading tow used for the production of cigarette filters.
  • the channel housing 1 is shown in the first position, in which the depth of the Tow Equipmentskanals 300 is smaller than in a second position.
  • the channel housing 1 is shown when changing from the first to the second position.
  • the channel housing 1 comprises a substantially plate-shaped nozzle wall 100 and a substantially plate-shaped channel wall 200, between which a tow guide channel 300 is formed.
  • the nozzle wall 100 and the channel wall 200 are arranged parallel to each other and spaced from each other, so that between the nozzle wall 100 and the channel wall 200 of the tow guide channel 300 is formed.
  • Spread Tow (not shown) is introduced through the tow entrance opening 310 in Tow equipment A and exits at the opposite Towaustrittsö réelle 320 from the tow guide channel 300 again.
  • the nozzle wall 100 has a nozzle wall portion 120, which is opposite to the channel wall 200 and has a gas supply channel 121. Further, the nozzle wall 100 in Tow Equipmentscardi A in front of and behind the nozzle wall portion 120 has a mounting portion 110 which serves to attach the nozzle wall 100 and preferably the entire channel housing 1 to a spreader nozzle or other elements of such spreader.
  • the nozzle wall 100 also has a gas supply channel 121.
  • a gas preferably under pressure and in particular compressed air, in a gas supply direction B orthogonal to the Tow entryscardi A and orthogonal to the Tow guiding plane in the Tow Entryskanal 300 is supplied.
  • the gas supply channel 121 extends substantially over the entire width of the Tow entryskanals 300 and has approximately the shape of a pointing with the tip to Towaustrittsö réelle 320 "V".
  • Such a shape of the gas supply channel 121 has proven to be particularly advantageous for Tow propagation.
  • the channel housing 1 shown here is independent of the concrete shape of the gas supply channel 121 in its other elements, that is, any other suitable design of the gas supply channel 121 can be combined with the other features of the channel housing.
  • the depth of the Tow Equipmentskanals 300 between the channel wall 200 and the nozzle wall 100 is changeable by the channel wall 200 in a first, in the FIGS. 1 to 2 shown position can be fastened and by turning or turning the channel wall 200th or the channel element 220, as in the Figures 3 and 4 shown, can be fastened in a second position.
  • the channel housing 1 is preferably formed symmetrically or substantially symmetrically to a symmetry axis Z.
  • the channel wall 200 is rotatably mounted on the nozzle wall 100 about a rotation axis X, so that the channel wall can be brought from the first position to the second position by rotation about its rotation axis X, and vice versa.
  • the channel wall 200 has a channel element 220 and a pivoting element 230.
  • the channel member 220 is rotatably attached to the pivot member 230 about the rotation axis X of the channel wall, which is identical to the rotation axis X of the channel member 220.
  • the pivot member 230 is pivotally mounted to the nozzle wall 100 about the pivot axis Y.
  • the pivot axis Y is orthogonal to the axis of rotation X and parallel to the Tow Entryscardi A and the Tow Unitsebene.
  • the pivot member 230 is fastened to the nozzle plate 100 via fasteners 250 and a mounting frame.
  • the channel element 220 has a first wide long side 221 a, which faces the tow guide channel 300 in the first position.
  • the channel member 220 further includes a second, opposite the first, wide long side 221 b, in the first position, as in FIGS. 1 to 2 shown, the Tow Entryskanal 300 facing away.
  • the first wide long side 221a has in a direction orthogonal to the Tow Equipmentscardi A a greater distance A1 to the rotation axis X than the second, the first opposite, wide long side 221 b, in a direction orthogonal to the Tow Equipmentscardi A a smaller distance A2 to the rotation axis X.
  • the channel wall 200 and the channel element 220 has.
  • the channel member 220 further includes two opposing channel element ends 222, 223 which define the tow guide channel 300 laterally, that is, orthogonal to the tow guide direction A and in the tow guide plane.
  • the two outer surfaces of the respective channel element ends 222, 223 project relative to the first and second wide long sides 221a, b, in particular in FIG Fig. 1d can be seen.
  • the outer surfaces of the channel element ends 222, 223 projecting from the first wide long side 221a touch the nozzle wall 100 in the first position, as in FIGS FIGS. 1 and 2 shown.
  • the outer surfaces of the channel element ends 222, 223 projecting from the second wide long side 221b touch in the second, not shown Position of the channel wall 200, the nozzle wall 100.
  • the two opposite outer surfaces of the channel element end 222 (as well as the two in Fig. 1d not shown opposite outer surfaces of the channel element end 223) in a direction orthogonal to the Tow.00 A the same distance Ax from the axis of rotation X of the channel member 220 on.
  • the extent to which the outer surfaces of the channel element ends 222, 223 project relative to the first and second wide long sides 221a, b, that is, the difference of the dimension Ax to A1 or A2 thus corresponds to the depth of the tow guide channel 300 in the first and second The second position of the channel wall 200.
  • the channel element 220 and the pivoting element 230 are in the first position (in the Fig. 1-2 shown) and in the second position (not shown) connected by a positional connection, which is preferably designed as a releasable positive connection or releasable butt joint.
  • the pivoting element 230 has at its side facing the channel element end 222 a semicylindrical projection 231 which engages in a corresponding semi-cylindrical recess 224 on the side of the channel element end 222 facing the pivot element 230.
  • This positional connection can be achieved by a substantially rectilinear movement of the channel element 220 in the direction of the axis of rotation X.
  • a grip portion 225 is formed on the channel member end 223 opposite the pivot member 230, which can be grasped by a user to pull the channel member away from the pivot member 230 along the axis of rotation X, for example, to release the positional connection.
  • a guide element 240 is provided, which is arranged on the channel element 220 and designed to guide the channel element 220 in the rectilinear movement relative to the pivot element 230.
  • the guide element 240 is guided through the pivot element 230, and the protruding from the pivot member 230 end of the guide member 240 is biased by the arrangement of a spring 241 between the protruding from the pivot member 230 end of the guide member 240 and the pivot member 230.
  • a preferred method for spreading tow used for the production of cigarette filters wherein the depth of the tow guide channel 300 between the channel wall 200 and the nozzle wall 100 is changed, will be exemplified below of the Figures 3 and 4 described.
  • the second wide long side 221b may face the tow guide channel, so that the tow guide channel 300 will have a greater depth than the one shown in Figs FIGS. 1 and 2 having shown first position.
  • the handle portion 225 can be gripped by a user on the channel element end 223 opposite the pivot element 230 and thus the channel element 220 can be pulled away from the pivot element 230 in the direction of the rotation axis X, so that the positive connection between the projection 231 of the pivot element 230 and the depression 224 at the channel element end 222 of the channel element 220 is released against the bias of the spring 241.
  • the pivot member 230 (and preferably the same extent the channel member 220) are pivoted about the pivot axis Y to the distance between the channel member 220 and the nozzle wall 100 to enlarge.
  • the channel member 220 can be rotated about the rotation axis X by 180 ° so that the channel member 220 is turned and the second wide long side 221b the Tow Installationskanal or the nozzle wall portion 120 of the nozzle wall 100 can be facing.
  • the positional connection between the projection 231 of the pivot member 230 and the recess 224 of the channel element end 222 of the channel member 220 again by a substantially rectilinear relative movement of the channel member 220 on the pivot member 230 in the direction of the rotation axis X to be closed.
  • the pivoting element 230 preferably with the channel element 220, about the pivot axis Y back to the nozzle wall 100 are pivoted back to the second position, in which the Tow Equipmentskanal 300 between the second wide long side 221 b of the channel element 220 and the nozzle wall portion 120 of the nozzle wall 100 is formed.
  • Markings 226a, b on the outer surfaces of the channel member end 223 indicate to a user which of the wide long sides 221a, b is just facing the tow guide channel, so that misadjustments of the depth of the tow guide channel can be avoided.
  • the illustrated channel housing 1 and the associated method make it possible to easily and safely bring about a rapid change between at least two different depths of the tow guide channel 300, without requiring the replacement of parts, the entire channel housing or even the entire spreader nozzle. Due to the fast and simple, less error-prone or error-sensitive change the depth of Tow Equipmentskanals thus required for the conversion time and the associated costs can be significantly reduced.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP14198924.4A 2014-01-13 2014-12-18 Boîtier de canal pour un manchon d'élargisseur destiné à élargir le filament utilisé pour la fabrication de filtres de cigarette et procédé d'élargissement de filament Active EP2893821B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL14198924T PL2893821T3 (pl) 2014-01-13 2014-12-18 Obudowa kanału dla dyszy rozpościerającej do rozpościerania kabla stosowanego do wytwarzania filtrów papierosowych i sposób rozpościerania kabla

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014200397.0A DE102014200397A1 (de) 2014-01-13 2014-01-13 Kanalgehäuse für eine Ausbreiterdüse zum Ausbreiten von für die Herstellung von Zigarettenfiltern verwendetem Tow und Verfahren zum Ausbreiten von Tow

Publications (2)

Publication Number Publication Date
EP2893821A1 true EP2893821A1 (fr) 2015-07-15
EP2893821B1 EP2893821B1 (fr) 2018-04-11

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Application Number Title Priority Date Filing Date
EP14198924.4A Active EP2893821B1 (fr) 2014-01-13 2014-12-18 Boîtier de canal pour un manchon d'élargisseur destiné à élargir le filament utilisé pour la fabrication de filtres de cigarette et procédé d'élargissement de filament

Country Status (4)

Country Link
EP (1) EP2893821B1 (fr)
CN (1) CN104770873B (fr)
DE (1) DE102014200397A1 (fr)
PL (1) PL2893821T3 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3226773A (en) * 1960-09-26 1966-01-04 Celanese Corp Method and apparatus for opening and applying finishes to multifilament tows
US3566451A (en) * 1966-03-02 1971-03-02 Rhodiaceta Ag Process for widening and loosening continuous artificial fiber
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US3226773A (en) * 1960-09-26 1966-01-04 Celanese Corp Method and apparatus for opening and applying finishes to multifilament tows
US3566451A (en) * 1966-03-02 1971-03-02 Rhodiaceta Ag Process for widening and loosening continuous artificial fiber
EP1096047A1 (fr) 1999-10-25 2001-05-02 Celanese Acetate, LLC. Appareil, méthode et système pour l'étalement pneumatique d'un cable textile et nappe ainsi produite
DE102008003369A1 (de) 2008-01-08 2009-07-09 Hauni Maschinenbau Aktiengesellschaft Ausbreiterdüse

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DE102014200397A1 (de) 2015-07-16
EP2893821B1 (fr) 2018-04-11
CN104770873A (zh) 2015-07-15
CN104770873B (zh) 2019-11-29

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