EP0736620B1 - Guiding device for sliver for a sliver processing textile machine and method for its operation - Google Patents

Guiding device for sliver for a sliver processing textile machine and method for its operation Download PDF

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Publication number
EP0736620B1
EP0736620B1 EP96102896A EP96102896A EP0736620B1 EP 0736620 B1 EP0736620 B1 EP 0736620B1 EP 96102896 A EP96102896 A EP 96102896A EP 96102896 A EP96102896 A EP 96102896A EP 0736620 B1 EP0736620 B1 EP 0736620B1
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EP
European Patent Office
Prior art keywords
funnel
fleece
guiding device
axis
sliver
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.)
Expired - Lifetime
Application number
EP96102896A
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German (de)
French (fr)
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EP0736620A1 (en
Inventor
Alfred Nauthe
Wolfgang Göhler
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.)
Rieter Ingolstadt GmbH
Original Assignee
Rieter Ingolstadt Spinnereimaschinenbau AG
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Filing date
Publication date
Priority claimed from DE19535347A external-priority patent/DE19535347A1/en
Application filed by Rieter Ingolstadt Spinnereimaschinenbau AG filed Critical Rieter Ingolstadt Spinnereimaschinenbau AG
Publication of EP0736620A1 publication Critical patent/EP0736620A1/en
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Publication of EP0736620B1 publication Critical patent/EP0736620B1/en
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine

Definitions

  • the technical field of the invention is textile machines. Is in this area particularly affected a route that has a calendering facility that mostly consists of two opposing calender rolls or calender discs, with which the sliver is compressed.
  • the invention is concerned with Sliver guide and the guide nozzles that define this guide.
  • a pair of delivery rollers to be arranged at the exit of a drafting system of a draw frame (as an example of a sliver processing machine), which conveys nonwoven into a fleece funnel.
  • the fiber sliver is spread out in accordance with the roller width due to the distortion.
  • the person skilled in the art describes the fiber sliver that is spread out at this point as a non-woven fabric.
  • the non-woven fabric ie the spread fiber sliver is conveyed into the opening of a non-woven funnel.
  • the fleece funnel the fiber fleece is rolled up and combined and transported further through the funnel mouth to a sliver tube which has a considerable length.
  • the sliver is introduced into a sliver funnel, which deflects the conveying direction of the sliver by approximately 90 ° and introduces it between a pair of calender rolls. After passing through the pair of calenders, the sliver compacted there is conveyed on to the laying device of the draw frame.
  • a sliver funnel which deflects the conveying direction of the sliver by approximately 90 ° and introduces it between a pair of calender rolls.
  • the sliver compacted there is conveyed on to the laying device of the draw frame.
  • the sliver tube being designated 8 and the delivery rollers of the draw frame 70b and 70a.
  • a structure with a long sliver tube 8 is also described in EP 593 884 A1 .
  • Another example of a long sliver tube (also designated 8 there) is US 4,372,010 ; the pair of calender rolls is designated 9a, 9b there.
  • Another example of the custom of the long sliver tube is shown in DE-A 26 23 400 .
  • the sliver tube itself is curved at an angle of approximately 90 ° and guides the sliver without changing the angle between the calender disks designated 5, 6 there. It is described as advantageous if the tube denoted by 14 is flattened in an oval shape (see page 9, last paragraph).
  • the DD 290 697 also shows a collector pipe .
  • the fleece funnel and belt funnel are clearly spaced there.
  • a ventilation opening (there 8) allows the air flowing in at the beginning of the collecting pipe (there 5) to escape completely in front of the narrowest point of the band funnel.
  • DE 36 12 133 A1 (FR 2 597 119 A1) relates to a belt guide channel between exit rolls and calender rolls on a spinning preparation machine.
  • the tape guide channel concerns the automatic insertion of a tape start into a tape funnel (there column 4, 45th to 55th row).
  • the tape guide channel is relatively long and has a large diameter.
  • the belt guide channel gives the sliver the necessary guidance on the way to the belt funnel. In this way, several injectors (there air duct 5, compressed air line 8) are arranged at different locations in the band guide duct. The entire volume of the belt that is fed at the beginning of the belt must then be compressed exclusively in the belt funnel (column 2, lines 61 to 63).
  • the band hopper must have a device for temporarily increasing its cross section. This is a prerequisite for automatic insertion of the sliver.
  • a further disadvantage is that the calender rollers must also be opened for the automatic introduction of the strip start. The beginning of the belt cannot be drawn into the clamping gap of the calender rolls when the closed calender rolls rotate.
  • the mouth of the band funnel (6, 6 ', 6 ") there is asymmetrical, ie the mouth region of the band funnel in the vicinity of the movable calender roll 2 is set back considerably more than with the other calender roll 3. As the cause is to be concluded that the sliver striking should support the opening movement of the calender roll 2.
  • the invention is based on the task of reducing the downtime of textile machines caused by fleece jam.
  • the object is achieved according to a guide device according to claims 4 or 26.
  • the object is achieved according to the method of claim 1.
  • a pivot axis V across the sliver guide channel runs.
  • This pivot axis is an axis section of the Guide channel at an angle to the other axis section of the To pivot the guide channel if a fleece jam occurs in the guide channel.
  • the arrangement of the pivot axis makes it possible for the dynamic pressure of the supplied fleece when it can no longer be removed, the Fleece funnel automatically swiveled out of its operational position swivel a ramp of the fleece funnel in the operational conveying direction, wherein the ramp has such an inclination in the pivoted position that the fleece that strikes them (initially promoted further) perpendicular to the normal one Direction of transport is deflected out of the interior of the drafting system.
  • the arrangement of the pivot axis results in a very small lever arm, to which the fleece fed into the fleece hopper acts in order to apply only slight forces need to swivel the fleece funnel. It works particularly easily Fleece funnel in the event of a fleece jam if the pivoting axis is below the Fleece funnel lies and the break point K lies in the pivot axis.
  • the fleece funnel can be designed to be removable in all of its operational positions, but in particular in the pivoting position, which corresponds to both the processing position for threading the fleece and the fleece stowage position.
  • the processing position or fleece stowage position can be buffered in order to achieve a gentle stop with automatic pivoting.
  • the interchangeable stop is buffered to achieve a gentle stop when the fleece funnel is pivoted automatically.
  • the buffered pivotability can also be used manually to carry out maintenance or cleaning work.
  • a corresponding gripping and actuating section is attached to the swiveling fleece funnel in an easily accessible manner.
  • the swiveling fleece funnel has a funnel area and one next to it arranged ramps so that the nonwoven fabric in the operating position of the Fleece funnel by rolling, deflecting and merging to form the sliver is formed and when the fleece funnel is tilted the ramp ensures that this is on it too-promoted nonwoven fabric is deflected so that it is out of the deflection area is conveyed out, the drafting area is not blocked and easily by the operator can be removed.
  • the ramp also ensures that no fleece jam can form because of the Fleece funnel then automatically by the force of the nonwoven conveyed on it pivots and the ramp continues the conveyed nonwoven fabric until it is switched off guides the delivery rollers out of the drafting system interior.
  • the fleece funnel has immediately took up his work position, which corresponds to the position, which it accepts when fleece jams occur.
  • the swiveling fleece funnel can be in the belt funnel (a cylindrical funnel-shaped Nozzle) can be pivoted.
  • the swiveling fleece funnel but can also be used directly with a band funnel subsequent nozzle section is pivotable on said calender guide section be stored (see FIG. 9a, FIG. 8a).
  • the facility which is free from long downtimes, is also compact. Despite the possibility of pivoting, the air flow is not efficient reduced.
  • the compact structure starts with one directly behind the last delivery roller significant path change before entering a guide channel. For more than 50 ° Redirection can - without impairing the fiber stretch quality - the additional Deflecting roller whose axis is slightly above the normal grain (without deflection roller) and approximately in one plane with the pivot axis V and the calender gap.
  • the ramp of the fleece funnel is determined as a function of the angles ⁇ 1 , ⁇ 2 or ⁇ A , ⁇ B.
  • the fleece funnel is relative to the total length of the Guide channel clearly spaced from the belt funnel by bearing plates and yet attached to him.
  • the overlay in FIG. 1 illustrates the difference from the prior art, which is shown schematically in FIG.
  • the fiber sliver FV which has not yet been drawn when it is introduced into the drafting system is, in the prior art, introduced into a fleece funnel via drawing rolls 67a, 68b, 69a, 69b and delivery rolls 70a, 70b and from there into a long guide tube 8 which ends in a band funnel 9.
  • the sliver funnel deflects the fiber sliver FB about 90 ° into the nip of the calender with its calender discs 100a, 100b.
  • calender discs or a pair of calender discs This term also includes the pair of calender rolls.
  • the calendered fiber sliver KF emerges vertically downward from the calender and arrives at a depositing device and is deposited from there (by means of a turntable, not shown) in a can.
  • This sliver guide is also shown in FIG. 2 with the same reference numerals.
  • An embodiment of the invention shortens the sliver path and leaves that Sliver tube 8 is eliminated.
  • An additional deflection roller 71 is added, the one Deflection of about 60 ° causes the nonwoven conveying direction FV and the nonwoven in introduced a sliver guide channel consisting of several Functional elements.
  • the first element is the fleece funnel 50 with a ramp 50b and one directly funnel area 50a arranged thereon, in which the broadly arriving nonwoven fabric folded, folded and inserted into a first channel section.
  • a first channel section is formed by an insert 40, which is on the rear side of the funnel area 50a of the fleece funnel 50 and with a screw is attached. It can be adjusted.
  • the fleece funnel 50 (with insert) can be tilted so that the Ramp 50b in the conveying direction and the funnel area 50a next to it is pivotable.
  • a bearing surface 41a, 41b is provided which, in the angular position ⁇ B , which is shown in FIG. 1 or FIG. 2b , enables the guide channel to be sealed off from the subsequent band funnel 30.
  • the bearing surface 41a, 41b of the front, cylindrical section of the insert 40 which is symmetrical to the center plane of the first insert 40, consists of two continuously curved bearing surfaces 41a and 41b which narrow towards the rear (in the axial direction) and which engage in a corresponding joint surface 35 on the band funnel 30.
  • 4a and 4b show this joint surface in two views at the front end of the insert 40 for the fleece funnel 50. Swiveling the fleece funnel 50 in the direction ⁇ into the other angular position ⁇ A does not release the radially airtight seal between the fleece funnel and the band funnel. Radially airtight sliver guidance is achieved both in the swung-in ( ⁇ B ) and in the swung-out ( ⁇ A ) state.
  • the fleece funnel 50 is designed in two parts - with one against the fiber conveying direction insertable insert 40-, can be carried on a handle 51 mentioned relative setting can be made.
  • the fiber sliver is conveyed through the fleece funnel 50, the insert 40 and the belt funnel 30 into the guide channel up to the clamping gap 100c, for which purpose the fleece funnel 50 is pivoted out.
  • the fleece funnel 50 is pivoted out.
  • the section F1 of nonwoven fabric which is narrowed by hand according to FIG. 3 and held in the funnel area 50a is sucked in.
  • a short suction flow in the cylindrical section 31 on the order of 500 ms is sufficient.
  • a short angular momentum of duration T 2 is applied to the calender disks. It can switch itself on after a predetermined suction time T 1 , can be superimposed on it or can be initiated separately manually.
  • FIGS. 5a, 5b and 5c The shape of the band funnel 30 can be seen more clearly in FIGS. 5a, 5b and 5c , where the direction and arrangement of the injector bores 34a, 34b in the band funnel are also shown enlarged. They open into a cylindrical section 31 which forms the front end of the sliver channel.
  • the cylindrical section 31 widens via a conical section 32a to the diameter of the conical channel 32, which is predetermined by the insert 40.
  • articulation surface 35 is provided, which corresponds to the bearing surface 41a, 41b in its curvature.
  • the two inclined injector bores 34a, 34b can run at an angle of approximately 45 ° with respect to the axis section 200b of the band funnel 30.
  • they can open in a common plane in the cylindrical section 31, offset in parallel, in addition to the injector effect to give the inserted sliver a twist and additional strength. This arrangement is shown in FIG . 5d .
  • the injector bores begin above a cylindrical section 33 of the band funnel 30 in an outwardly open annular channel 36.
  • a band funnel holder 60 according to FIGS. 6a, 6b, 6c has in the upper approximately cylindrical section 67 a central, approximately cylindrical opening 62 into which the band funnel 30 is inserted.
  • an annular channel 63 which can be fed with compressed air from two or more cylindrical bores 64a, 64b, extends inwardly in the cylindrical opening.
  • the compressed air introduced from the outside is introduced into the inclined injector bores 34a, 34b when the band funnel 30 is inserted, in order to open into the cylindrical section 31 of the guide channel, which lies close to the clamping gap 100c.
  • the interchangeability of the band funnel 30 and the insert 40 enables a quick changeover to changed channel widths as a result of different fiber band material when the batch is changed.
  • FIGS. 6a and 6b illustrate the cylindrical beak 61 of the band funnel holder 60, which adjoins a conical section 68 which forms the transition between the upper, cylindrical end 67 and the beak 61. It has a length L and a diameter, shown in the cross section of FIG. 6b as width b.
  • the beak 61 is arranged in a fixed manner and has two halves, since - as can be seen in FIG. 6c - it is slit on the side. According to the schematic illustration in FIG. 7 , a segment of the rotating calender disks 100a, 100b engages in the two slots mentioned. This can also be clearly seen in FIG. 1 in the right half.
  • the integrally molded parts lead past the clamping gap 100c or 100d Beak halves 61a, 61b, through the mentioned slots 61c, 61d in the cylindrical beak 61 are formed, the guide air.
  • the lead air was previously via the injector holes 64a, 64b in the ring channel 63 and from there via the injector bores 34a, 34b, which run obliquely to the axis section 200b of the band funnel 30 inserted into the sliver channel.
  • this air serves a first narrow channel section 65a on one side of the Calender disks or a second narrow channel section 65b on the other Side of the calender discs, which have an approximately semicircular cross-sectional shape exhibit.
  • the respective channel is very narrow compared to the thickness d or width b of the beak 61 or its inner wall, which is directly the Side surface of the calender disk is adjacent.
  • the Beak halves 61a, 61b which have a length L which is approximately half the length Diameter of the calender discs in the embodiment corresponds to the Width b of the beak and overlap d on the inside of the beak halves against the calender disc to a sealing effect, which by clear to considerable, lateral flow resistance compared to the axial, lateral Channel sections 65a, 65b is formed without contact.
  • the air not only passed the calender gap, but also clearly passed through the calender gap.
  • the sliver is also immediately threaded through the calender nip and the calender disk 100b can then be advanced (closed position) in order to have reached the operating position with the sliver threaded.
  • the sealing surface part of the cover d
  • the sealing surface is large enough in relation to the air resistance of the now enlarged passage channel, consisting of the channel sections 65a, 65b and the open calender gap 100d, in order to prevent radial escape of guide air .
  • FIGS. 8a and 8b show an embodiment of a guide device which is essentially made in one piece and contains both the fleece funnel 50 and the belt funnel 30.
  • the band funnel 30 is inserted directly into the fleece funnel 50 and is additionally fixed in position by a tube holder 80.
  • the front end of the band funnel 30 is supported in comparable joint shells and bearing surfaces, as were described for the insert 40 with reference to FIGS. 4b and 5c .
  • FIGS. 8a and 8b The radial seal is also achieved in FIGS. 8a and 8b , where a residual guide section 61 'is fixedly arranged with respect to the calender disks, for example on the holder 20 according to FIG . 9a .
  • the remaining guide section 61 ' corresponds to the length L of the band funnel holder 60 from FIG . 6a .
  • the air is introduced into the combined fleece funnel / belt funnel at the front end thereof via inclined injector bores 34a, 34b, with a pivoting movement causing a slight pivoting of the air introduction region, which is only slight due to its proximity to the kink point K.
  • FIGS. 8a and 8b are designated ⁇ 1 and ⁇ 2 , they correspond to the pivot positions ⁇ A and ⁇ B , but can be dimensioned slightly differently, since the pivotable part in FIGS. 8a and 8b is larger or longer than in Figures 3a and 3b .
  • the insert 40 which is both a fleece funnel insert and a belt funnel 30 through different holes and corresponding conical Transitional sections defined the sections of the guide channel.
  • An exchange of the insert 40 is at the same time an exchange of the band funnel 30. Readjustment or adjustment work can be omitted due to the one-piece training.
  • the annular tube holder 80 is not quite flush with the combined one Fleece funnel / belt funnel, but leaves an annular space 81 between the Inside of the funnel and the outer diameter of the largely cylindrical Combination funnel 30/40.
  • the annular space 81 leads to the fiber guidance Compressed air used, whereby it is at the front end by flush (ring-shaped) Contact on the combination nozzle - below the injector bores 34a, 34b - is sealed.
  • At an appropriate height, chosen from the application purpose there is a main air supply leading to the outside Annulus 81 opens, where compressed air can build up and the injector holes 34a, 34b feeds.
  • the injector bores are clearly inclined with respect to the axis section 200a, they open up just before the radially airtight joint at the kink point K, at which radial airtight mounting takes place in both positions of FIG. 8 and FIG. 8b .
  • angles ⁇ 1 and ⁇ 2 are slightly in each case reduced with respect to the example of Figures 2a and 2b, but in the same specified range, as shown in Figures 2.
  • the exact angle is in this embodiment for ⁇ 2 is about 5 ° for ⁇ 1 is approximately 25 ° ( ⁇ 10%), while in Figure 2a an angle ⁇ A of approximately 30 ° and in Figure 2b an angle of approximately 7 ° ( ⁇ 10%) worked reliably in the experiment.
  • ramp 50b is somewhat adapted to the angle of ramp 50b in FIGS. 2a and 2b. It depends on the angles ⁇ in the respective swivel end positions; wherein the swivel position ⁇ 1 and ⁇ A specifies such an angle of the ramp that the direction of conveyance of the nonwoven fabric FV is clearly directed transversely from the exit region of the route. It is most advantageous if the transverse direction of FV has a slight component downwards, that is, it is inclined slightly downwards relative to the horizontal.
  • the ramp has either a slight slope of 1 ° to 2 ° opposite the funnel area or it is slightly conical.
  • FIGS. 8a and 8b two different guide channel dimensions are shown in FIGS. 8a and 8b , a narrow and a wide one, each with a conical shoulder to the narrowest cylindrical channel section.
  • FIGS Figures 4 and 5 show a side view and a top view of the fleece funnel 50 with its ramp 50b and its funnel area 50a according to FIG. 3.
  • the pivot axis V is transverse to the axis section 200a, 200b and runs through the airtight joint 41a, 41b and 35, as in FIGS Figures 4 and 5 explained.
  • the pivot axis V runs through the bearings, which are formed by lateral bearing tabs 52a, 52b and pins 50c.
  • the pivot receivers 53a, 53b which are at least half open on the front, can be placed on the pins.
  • the fleece funnel 50 can thus be removed and tilted, while at the same time sealing the internally formed guide channel with the axis sections 200a, 200b.
  • FIGS. 9a and 9b show the pivotable fleece funnel 50 with ramps 50b and funnel area 50a.
  • the pivot axis V is shown and is defined by a joint, which is shown schematically to the right of FIG. 9b is.
  • a bearing tab 52a (on the opposite side 52b) has one after open at the bottom in approximately semicircular recess, which for a pin 50c Formation of a joint is put on. Due to the smooth transitions on opening end of exception 53a (at the opposite end 53b) Fleece funnel 50 can be easily removed and replaced. The direction of the Arrow F indicates this.
  • the fleece funnel 50 is at the angle ⁇ pivotable, which pivoting either by a user on the handle 51 is generated or by a fleece jam and the resulting dynamic pressure above the pivot axis V is caused, with the ramp 50b in the conveying direction is swung in by FV.
  • the width of the ramp 50b is e and is approximately as wide as the inlet of the funnel area 50a. It can be slightly conical and it can be inclined at an angle ⁇ 1 with respect to a plane E 1 which is perpendicular to the axis section 200a of the guide channel (cf. FIG. 3b).
  • the inclination ⁇ 1 is matched to the swivel angle ⁇ A , which is the end position (processing position) when the fleece funnel is unfolded.
  • the fleece conveying direction FV ' should lead out of the drafting system area at approximately 90 °. Accordingly, an angle of approximately 30 ° (20 ° to 40 °) will be selected in practical use.
  • the inlet area of the funnel area 50a has an angle ⁇ 2 that is somewhat reduced compared to the plane ⁇ 1 .
  • the difference between these two angles ⁇ is between 1 ° and 5 °.
  • the machine is secured against downtime so that the Fleece funnel itself swings out and the further sliver run in the Outside of the machine conducts where that is no longer properly stretched Sliver can be easily removed.
  • the operating times are shortened and simplified.
  • the fleece funnel ramp 50b enables in addition to the jam position also the processing position without a User must first thread out sliver from the drafting system area. The latter happens automatically.
  • the Ramp 50b In connection with the top roller relief during winding formation, the Ramp 50b the possible space for uncontrolled fiber fleece transport and with it winding formation.
  • the machine can be monitored electrically.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Description

Das technische Gebiet der Erfindung sind die Textilmaschinen. In diesem Gebiet ist besonders eine Strecke betroffen, die eine Kalander-Einrichtung hat, die zumeist aus zwei gegenüberstehenden Kalanderwalzen bzw. Kalanderscheiben besteht, mit denen das Faserband verdichtet wird. Von der Erfindung betroffen ist die Faserbandführung sowie die Führungsdüsen, die diese Führung festlegen.The technical field of the invention is textile machines. Is in this area particularly affected a route that has a calendering facility that mostly consists of two opposing calender rolls or calender discs, with which the sliver is compressed. The invention is concerned with Sliver guide and the guide nozzles that define this guide.

Im Stand der Technik ist es üblich, daß am Ausgang eines Streckwerks einer Strecke (als Beispiel einer faserbandverarbeitenden Maschine) ein Lieferwalzenpaar angeordnet ist, das Faservlies in einen Vliestrichter fördert. Unmittelbar nach dem Lieferwalzenpaar ist das Faserband infolge des Verzuges entsprechend der Walzenbreite ausgebreitet. Der Fachmann bezeichnet das an dieser Stelle ausgebreitete Faserband als Faservlies. Das Faservlies, d. h. das ausgebreitete Faserband wird in die Öffnung eines Vliestrichters gefördert. Im Vliestrichter wird das Faservlies eingerollt und zusammengefaßt und durch die Trichtermündung an ein Faserbandrohr weitertransportiert, das eine erhebliche Länge aufweist. Am Ende des Faserbandrohres wird das Faserband in einen Bandtrichter eingeleitet, der die Förderrichtung des Faserbandes um etwa 90° umlenkt und zwischen ein Kalander-Walzenpaar einführt. Nach Durchlauf durch das Kalander-Walzenpaar wird das dort verdichtete Faserband zur Ablegevorrichtung der Strecke weiterbefördert. Ein solches Beispiel ist in der linken Hälfte der Figur 1 gezeigt, wobei das Faserbandrohr mit 8 bezeichnet ist und die Lieferwalzen der Strecke mit 70b und 70a. In the prior art, it is customary for a pair of delivery rollers to be arranged at the exit of a drafting system of a draw frame (as an example of a sliver processing machine), which conveys nonwoven into a fleece funnel. Immediately after the pair of delivery rollers, the fiber sliver is spread out in accordance with the roller width due to the distortion. The person skilled in the art describes the fiber sliver that is spread out at this point as a non-woven fabric. The non-woven fabric, ie the spread fiber sliver is conveyed into the opening of a non-woven funnel. In the fleece funnel, the fiber fleece is rolled up and combined and transported further through the funnel mouth to a sliver tube which has a considerable length. At the end of the sliver tube, the sliver is introduced into a sliver funnel, which deflects the conveying direction of the sliver by approximately 90 ° and introduces it between a pair of calender rolls. After passing through the pair of calenders, the sliver compacted there is conveyed on to the laying device of the draw frame. Such an example is shown in the left half of FIG. 1, the sliver tube being designated 8 and the delivery rollers of the draw frame 70b and 70a.

Ebenfalls beschrieben wird ein Aufbau mit langem Faserbandrohr 8 in der EP 593 884 A1. Ein anderes Beispiel eines langen Faserbandrohres (dort auch mit 8 bezeichnet) ist die US 4,372,010; das Kalander-Walzenpaar ist dort mit 9a, 9b bezeichnet.
Ein weiteres Beispiel für die Üblichkeit des langes Faserbandrohres ist in der DE-A 26 23 400 gezeigt. Dort ist das Faserbandrohr selbst in einem Winkel von etwa 90° gekrümmt und leitet das Faserband ohne Winkeländerung zwischen die dort mit 5, 6 bezeichneten Kalanderscheiben. Als vorteilhaft wird dort beschrieben, wenn das mit 14 bezeichnete Rohr in Ovalform abgeflacht ist (vergleiche dort Seite 9, letzter Absatz).
Ein Sammelrohr zeigt schließlich auch die DD 290 697. Dort sind Vliestrichter und Bandtrichter deutlich beabstandet. Eine Entlüftungsöffnung (dort 8) läßt die am Anfang des Sammelrohres (dort 5) einströmende Luft deutlich vor der engsten Stelle des Bandtrichters vollständig entweichen.A structure with a long sliver tube 8 is also described in EP 593 884 A1 . Another example of a long sliver tube (also designated 8 there) is US 4,372,010 ; the pair of calender rolls is designated 9a, 9b there.
Another example of the custom of the long sliver tube is shown in DE-A 26 23 400 . There, the sliver tube itself is curved at an angle of approximately 90 ° and guides the sliver without changing the angle between the calender disks designated 5, 6 there. It is described as advantageous if the tube denoted by 14 is flattened in an oval shape (see page 9, last paragraph).
The DD 290 697 also shows a collector pipe . The fleece funnel and belt funnel are clearly spaced there. A ventilation opening (there 8) allows the air flowing in at the beginning of the collecting pipe (there 5) to escape completely in front of the narrowest point of the band funnel.

Die DE 36 12 133 A1 (FR 2 597 119 A1) betrifft einen Bandführungskanal zwischen Ausgangswalzen und Kalanderwalzen an einer Spinnereivorbereitungsmaschine. Der Bandführungskanal betrifft das automatische Einführen eines Bandanfangs in einen Bandtrichter (dort Spalte 4, 45. bis 55. Zeile). Der Bandführungskanal ist relativ lang und hat einen großen Durchmesser. Der Bandführungskanal gibt dem Faserband die notwendige Führung auf dem Weg bis zum Bandtrichter. Auf diesem Weg kommen mehrere Injektoren (dort Luftkanal 5, Druckluftleitung 8) an unterschiedlichen Orten des Bandführungskanals zur Anordnung. Die gesamte, geförderte Bandmasse des Bandanfangs muß dann ausschließlich im Bandtrichter komprimiert werden (dort Spalte 2, 61. bis 63. Zeile).
Es besteht das Problem des Luftstaus im Bandtrichter (dort Spalte 2, 66. Zeile und Spalte 3, 4. Zeile). Um dieses Problem zu beseitigen, muß der Bandtrichter eine Vorrichtung zur kurzfristigen Vergrößerung seines Querschnitts haben. Das ist Voraussetzung für ein automatisches Einführen des Faserbandes. Nachteilig ist weiterhin, daß zum automatischen Einführen des Bandanfangs unbedingt zusätzlich die Kalanderwalzen geöffnet werden müssen. Der Bandanfang kann nicht bei Drehung der geschlossenen Kalanderwalzen in den Klemmspalt der Kalanderwalzen eingezogen werden.
Zur Unterstützung der Öffnungsbewegung einer Kalanderwalze 2 ist die Mündung des dortigen Bandtrichters (6, 6', 6") asymmetrisch, d.h. der Mündungsbereich des Bandtrichters in Nähe der beweglichen Kalanderwalze 2 ist wesentlich mehr zurück versetzt, als bei der anderen Kalanderwalze 3. Als Ursache ist zu schlußfolgern, daß das auftreffende Faserband die Öffnungsbewegung der Kalanderwalze 2 unterstützen soll. DE 36 12 133 A1 (FR 2 597 119 A1) relates to a belt guide channel between exit rolls and calender rolls on a spinning preparation machine. The tape guide channel concerns the automatic insertion of a tape start into a tape funnel (there column 4, 45th to 55th row). The tape guide channel is relatively long and has a large diameter. The belt guide channel gives the sliver the necessary guidance on the way to the belt funnel. In this way, several injectors (there air duct 5, compressed air line 8) are arranged at different locations in the band guide duct. The entire volume of the belt that is fed at the beginning of the belt must then be compressed exclusively in the belt funnel (column 2, lines 61 to 63).
There is the problem of air congestion in the belt hopper (there column 2, 66th row and column 3, 4th row). To overcome this problem, the band hopper must have a device for temporarily increasing its cross section. This is a prerequisite for automatic insertion of the sliver. A further disadvantage is that the calender rollers must also be opened for the automatic introduction of the strip start. The beginning of the belt cannot be drawn into the clamping gap of the calender rolls when the closed calender rolls rotate.
To support the opening movement of a calender roll 2, the mouth of the band funnel (6, 6 ', 6 ") there is asymmetrical, ie the mouth region of the band funnel in the vicinity of the movable calender roll 2 is set back considerably more than with the other calender roll 3. As the cause is to be concluded that the sliver striking should support the opening movement of the calender roll 2.

Die DE 36 12 133 A1, Spalte 4, 29. bis 34. Zeile beschreibt auch die Möglichkeit, daß das Gehäuse im Falle der Verstopfung des zylindrischen Bandführungskanals oder seines trichterförmigen Einlaufs durch weiter zugelieferten Faservlies weggedrückt werden kann. Diese Lösung hat den Nachteil, daß das Gehäuse in eine zufällige Richtung nach oben (entgegen der Förderrichtung) weggedrückt wird und infolge der Nähe zum Lieferwalzenpaar dessen Beschädigung nicht auszuschließen ist. DE 36 12 133 A1, column 4, 29th to 34th line also describes the possibility of that the housing in the event of blockage of the cylindrical tape guide channel or its funnel-shaped inlet through further supplied nonwoven can be pushed away. This solution has the disadvantage that the housing in a random direction is pushed upwards (against the conveying direction) and due to the proximity to the pair of delivery rollers, its damage is not is to be excluded.

Die Erfindung geht von der Aufgabe aus, die durch Vliesstau bedingten Ausfallzeiten von Textilmaschinen zu reduzieren.
Die Aufgabe wird gemäß einer Führungseinrichtung nach den Ansprüchen 4 oder 26 gelöst. Die Aufgabe wird verfahrensgemäß nach Anspruch 1 gelöst.The invention is based on the task of reducing the downtime of textile machines caused by fleece jam.
The object is achieved according to a guide device according to claims 4 or 26. The object is achieved according to the method of claim 1.

Dazu wird vorgeschlagen, daß eine Verschwenkachse V quer durch den Faserband-Führungskanal verläuft. An dieser Verschwenkachse ist ein Achsabschnitt des Führungskanals in einem Winkel gegenüber dem anderen Achsabschnitt des Führungskanals zu verschwenken, wenn ein Vliesstau im Führungskanal auftritt.For this purpose, it is proposed that a pivot axis V across the sliver guide channel runs. At this pivot axis is an axis section of the Guide channel at an angle to the other axis section of the To pivot the guide channel if a fleece jam occurs in the guide channel.

Durch die Anordnung der Verschwenkachse wird es möglich, daß der Staudruck des zugeförderten Vlieses dann, wenn es nicht mehr abgefördert werden kann, den Vliestrichter selbsttätig aus seiner betrieblichen Stellung heraus verschwenkt, um eine Rampe des Vliestrichter in die betriebliche Förderrichtung einzuschwenken, wobei die Rampe in eingeschwenkter Stellung eine solche Neigung aufweist, daß das auf sie auftreffende (zunächst weiter geförderte) Vlies quer zur normalen Transportrichtung aus dem Innenraum des Streckwerks heraus abgelenkt wird.The arrangement of the pivot axis makes it possible for the dynamic pressure of the supplied fleece when it can no longer be removed, the Fleece funnel automatically swiveled out of its operational position swivel a ramp of the fleece funnel in the operational conveying direction, wherein the ramp has such an inclination in the pivoted position that the fleece that strikes them (initially promoted further) perpendicular to the normal one Direction of transport is deflected out of the interior of the drafting system.

Durch die Anordnung der Verschwenkachse ergibt sich ein sehr kleiner Hebelarm, an dem das in den Vliestrichter geförderte Vlies angreift, um nur geringe Kräfte zu benötigen, den Vliestrichter zu verschwenken. Besonders leicht klappt der Vliestrichter bei Vliesstau aus, wenn die Verschwenkachse unterhalb des Vliestrichters liegt und der Knickpunkt K in der Verschwenkachse liegt.The arrangement of the pivot axis results in a very small lever arm, to which the fleece fed into the fleece hopper acts in order to apply only slight forces need to swivel the fleece funnel. It works particularly easily Fleece funnel in the event of a fleece jam if the pivoting axis is below the Fleece funnel lies and the break point K lies in the pivot axis.

Der Vliestrichter kann in allen seinen betrieblichen Stellungen, insbesondere aber in der Verschwenkstellung, die sowohl der Anarbeitungsstellung für das Einfädeln des Vlieses als auch der Vlies-Staustellung entspricht, entnehmbar ausgestaltet sein. Die Anarbeitungs-Stellung oder Vlies-Staustellung kann gepuffert sein, um einen sanften Anschlag bei selbsttätiger Verschwenkung zu erreichen. Der austauschbare Anschlag ist gepuffert, um einen sanften Anschlag beim selbsttätigen Verschwenken des Vliestrichters zu erreichen.
Die gepufferte Verschwenkbarkeit kann auch manuell zur Durchführung von Wartungs- oder Reinigungsarbeiten verwendet werden. Dazu ist ein entsprechender Greif- und Betätigungsabschnitt an dem schwenkbaren Vliestrichter leicht zugänglich angebracht.The fleece funnel can be designed to be removable in all of its operational positions, but in particular in the pivoting position, which corresponds to both the processing position for threading the fleece and the fleece stowage position. The processing position or fleece stowage position can be buffered in order to achieve a gentle stop with automatic pivoting. The interchangeable stop is buffered to achieve a gentle stop when the fleece funnel is pivoted automatically.
The buffered pivotability can also be used manually to carry out maintenance or cleaning work. For this purpose, a corresponding gripping and actuating section is attached to the swiveling fleece funnel in an easily accessible manner.

Der schwenkbare Vliestrichter weist einen Trichterbereich auf sowie eine daneben angeordnete Rampen, so daß das Faservlies in der Betriebsstellung des Vliestrichters durch Einrollen, Umlenken und Zusammenführen zum Faserband geformt wird und bei gekipptem Vliestrichter die Rampe dafür sorgt, daß das auf ihn zu geförderte Faservlies so abgelenkt wird, daß es aus dem Umlenkbereich herausgefördert wird, den Streckwerkbereich nicht blockiert und vom Bediener leicht entnommen werden kann.The swiveling fleece funnel has a funnel area and one next to it arranged ramps so that the nonwoven fabric in the operating position of the Fleece funnel by rolling, deflecting and merging to form the sliver is formed and when the fleece funnel is tilted the ramp ensures that this is on it too-promoted nonwoven fabric is deflected so that it is out of the deflection area is conveyed out, the drafting area is not blocked and easily by the operator can be removed.

Mit der Rampe wird auch sichergestellt, daß sich kein Vliesstau bilden kann, weil der Vliestrichter dann durch die Kraft des auf ihn geförderten Faservlieses selbsttätig verschwenkt und die Rampe das weiterhin geförderte Faservlies bis zum Abschalten der Lieferwalzen aus dem Streckwerks-Innenraum wegleitet. Der Vliestrichter hat dabei sogleich seine Anarbeitsstellung eingenommen, die der Stellung entspricht, die er annimmt, wenn Vliesstau auftritt.The ramp also ensures that no fleece jam can form because of the Fleece funnel then automatically by the force of the nonwoven conveyed on it pivots and the ramp continues the conveyed nonwoven fabric until it is switched off guides the delivery rollers out of the drafting system interior. The fleece funnel has immediately took up his work position, which corresponds to the position, which it accepts when fleece jams occur.

Der verschwenkbare Vliestrichter kann im Bandtrichter (einer zylindrischtrichterförmigen Düse) schwenkbar gelagert sein. Der verschwenkbare Vliestrichter kann aber auch zusammen mit einem als Bandtrichter ausgebildeten direkt an ihn anschließenden Düsenabschnitt schwenkbar auf dem genannten Kalander-Führungsabschnitt gelagert sein (vgl. Figur 9a, Figur 8a).The swiveling fleece funnel can be in the belt funnel (a cylindrical funnel-shaped Nozzle) can be pivoted. The swiveling fleece funnel but can also be used directly with a band funnel subsequent nozzle section is pivotable on said calender guide section be stored (see FIG. 9a, FIG. 8a).

Die von langen Ausfallzeiten freie Einrichtung ist außerdem kompakt aufgebaut. Trotz der Verschwenkmöglichkeit wird die Luftführung nicht im Wirkungsgrad herabgesetzt.The facility, which is free from long downtimes, is also compact. Despite the possibility of pivoting, the air flow is not efficient reduced.

Der kompakte Aufbau beginnt direkt hinter der letzten Lieferwalze mit einer deutlichen Bahnänderung noch vor Eintritt in einen Führungskanal. Für mehr als 50° Umlenkung kann - ohne Beeinträchtigung der Faser-Streckqualität - die zusätzliche Umlenkwalze sorgen, deren Achse etwas oberhalb des Normal-Faserlaufs (ohne Umlenkwalze) und etwa in einer Ebene mit der Verschwenkachse V und dem Kalanderspalt liegt.The compact structure starts with one directly behind the last delivery roller significant path change before entering a guide channel. For more than 50 ° Redirection can - without impairing the fiber stretch quality - the additional Deflecting roller whose axis is slightly above the normal grain (without deflection roller) and approximately in one plane with the pivot axis V and the calender gap.

Die Rampe des Vliestrichters wird bestimmt in Abhängigkeit von den Winkeln α1, α2 oder αA, αB.The ramp of the fleece funnel is determined as a function of the angles α 1 , α 2 or α A , α B.

Um leicht Ausklappen zu können, ist der Vliestrichter relativ zur Gesamtlänge des Führungskanals deutlich vom Bandtrichter durch Lagerbleche beabstandet und doch ihm nahe angebracht.In order to be able to fold it out easily, the fleece funnel is relative to the total length of the Guide channel clearly spaced from the belt funnel by bearing plates and yet attached to him.

Ausführungsbeispiele der Erfindung sollen ihr Verständnis erweitern und vertiefen.

Figur 1
ist in Überlagerung eine übliche Gestaltung einer Faserband-Führung mit langem Faserbandrohr und eine Bauform mit zusammengefügten Düseneinsätzen 30, 40, 50, 60, wovon zwei Düseneinsätze 40, 50 um eine Achse V kippbar gegenüber den anderen beiden Düseneinsätzen 30, 60 sind, die an einem fest oberhalb der Kalanderscheiben 100a, 100b angeordneten Düsenhalter 20 angeordnet sind.
Die überlagerte Darstellung dient der Veranschaulichung der Verkürzung des Transportweges von Faserband.
Figur 2
verdeutlicht noch einmal, herausgegriffen aus EP 593 884, die Faserband-Führung des Standes der Technik mit langem Faserbandrohr 8, Bandtrichter 9 und Kalanderscheiben 100a, 100b. Der Vliestrichter ist in Figur 2 mit 1 bezeichnet und die Ausgangswalzen der Strecke mit 70a, 70b.
Figur 2a und Figur 2b
zeigen die zwei Verschwenkstellungen αA, αB der ineinander geschachtelten Düsen des Gesamt-Düseneinsatzes als Ausführungsbeispiel der Erfindung.
Figur 3
zeigt einen vorbereiteten Anfang eines Faservlies zum Einführen in einen Vliestrichter 50.
Figur 3a und Figur 3b
zeigen die beiden Kippstellungen zum Faservlies-Einführen (Stau-Stellung) und im Betrieb der Strecke.
Figur4a und Figur 4b
zeigen einen Einsatz 40 für den Vliestrichter 50
Figur 5a, Figur 5b, Figur 5c und Figur 5d
zeigen den Bandtrichter 30, zum Einsatz in einen Bandtrichter-Halter 60 gemäß Figur 6.
Figur 6a, Figur 6b und Figur 6c
zeigen den als Schnabeltrichter gestalteten Bandtrichter-Halter 60 für den Bandtrichter 30.
Figur 7
zeigt eine schematische Aufsicht auf den Klemmspalt 100c, der von dem Kalanderscheibenpaar 100a, 100b gebildet wird. Die Luftkanäle 65a, 65b werden außenseitig von den Schnäbeln 61a, 61b begrenzt, die stirnseitig am Bandtrichter-Halter 60 angeordnet sind. Im Detail ist diese Ansicht in Figur 6c dargestellt, dort ohne Kalanderscheiben.
Figur 7a und Figur 7b
zeigen detailierter den in Figur 7 schematisch dargestellten Klemmspalt, einmal geschlossen 100c, einmal geöffnet 100d, durch Wegbewegen der einen Kalanderscheibe 100b gegenüber der anderen.
Figur 8a und Figur 8b
zeigen eine den Figuren 3a, 3b vergleichbare Ausführung, bei der der Schwenkbereich gleichzeitig den Knickpunkt K zwischen den Achsabschnitten 200a, 200b des Führungskanals aufweist. Als feststehender Abschnitt 61' verbleibt unterhalb des Knickpunktes K ein Kalander-Führungsabschnitt. Ihm gegenüber sind alle Düsen-Funktionselemente - auch der Bandtrichterbereich - zwischen Lieferwalzen 71, 70a, 70b und Kalanderscheiben 100a, 100b verschwenkbar. Der Bereich oberhalb des Abschnitts 61' ist einteilig ausgestaltet, als Einsatz 40, 30 in den Vliestrichter 50, umgeben von einem zylindrischen Halter 80.
Figur 9a und Figur 9b
zeigen den Vliestrichter 50 mit dem Verkippgelenk 50c, 52a, 53a am stationären Halter 20, in dem der Bandtrichter-Halter 60, und Bandtrichter 30 lösbar gehalten ist. Das vordere Ende 41 des oberen Einsatzes 40 ist verschwenkbar in dem unteren Bandtrichter 30 des Bandtrichter-Halter 60 gelagert, wozu zwei Gelenkflächen dienen, die in Betriebsstellung radial luftabdichtend zusammenwirken.
Embodiments of the invention are intended to broaden and deepen their understanding.
Figure 1
is a common design of a sliver guide with a long sliver tube and a design with assembled nozzle inserts 30, 40, 50, 60, of which two nozzle inserts 40, 50 can be tilted about an axis V relative to the other two nozzle inserts 30, 60, which on a nozzle holder 20 arranged fixedly above the calender disks 100a, 100b.
The overlaid representation serves to illustrate the shortening of the transport path of sliver.
Figure 2
illustrates again, taken from EP 593 884, the sliver guide of the prior art with a long sliver tube 8, sliver funnel 9 and calender disks 100a, 100b. The fleece funnel is denoted by 1 in FIG. 2 and the outlet rollers of the draw frame by 70a, 70b.
Figure 2a and Figure 2b
show the two pivot positions α A , α B of the nested nozzles of the overall nozzle insert as an embodiment of the invention.
Figure 3
shows a prepared beginning of a nonwoven fabric for insertion into a nonwoven funnel 50.
Figure 3a and Figure 3b
show the two tilt positions for fiber fleece insertion (jam position) and in operation of the route.
Figure4a and Figure 4b
show an insert 40 for the fleece funnel 50
Figure 5a, Figure 5b, Figure 5c and Figure 5d
show the band funnel 30 for use in a band funnel holder 60 according to FIG. 6.
Figure 6a, Figure 6b and Figure 6c
show the band funnel holder 60 designed as a beak funnel for the band funnel 30.
Figure 7
shows a schematic plan view of the clamping gap 100c, which is formed by the pair of calender discs 100a, 100b. The air channels 65a, 65b are delimited on the outside by the beaks 61a, 61b, which are arranged on the end of the band funnel holder 60. This view is shown in detail in FIG. 6c , there without calender disks.
Figure 7a and Figure 7b
show in more detail the clamping gap shown schematically in FIG. 7 , once closed 100c, once opened 100d, by moving one calender disk 100b away from the other.
Figure 8a and Figure 8b
show an embodiment comparable to FIGS. 3a, 3b , in which the swivel range at the same time has the break point K between the axis sections 200a, 200b of the guide channel. A calender guide section remains as a fixed section 61 'below the break point K. In relation to it, all nozzle functional elements - including the belt hopper area - can be pivoted between delivery rollers 71, 70a, 70b and calender discs 100a, 100b. The area above the section 61 'is designed in one piece, as an insert 40, 30 in the fleece funnel 50, surrounded by a cylindrical holder 80.
Figure 9a and Figure 9b
show the fleece funnel 50 with the tilting joint 50c, 52a, 53a on the stationary holder 20, in which the band funnel holder 60 and band funnel 30 are detachably held. The front end 41 of the upper insert 40 is pivotally mounted in the lower band funnel 30 of the band funnel holder 60, for which purpose two articulated surfaces are used, which interact in a radially air-tight manner in the operating position.

Die Überlagerung in Figur 1 verdeutlicht den Unterschied zum Stand der Technik, der in Figur 2 schematisch dargestellt ist. Das beim Einführen in das Streckwerk noch nicht verstreckte Faserband FV wird im Stand der Technik über Streckwalzen 67a, 68b, 69a, 69b und Lieferwalzen 70a, 70b in einen Vliestrichter und von dort in ein langes Führungsrohr 8 eingeführt, das in einem Bandtrichter 9 mündet. Der Bandtrichter lenkt das Faserband FB etwa 90° um in den Klemmspalt des Kalanders mit seinen Kalanderscheiben 100a, 100b. Nachfolgend wird von Kalanderscheiben bzw. einem Kalanderscheibenpaar gesprochen. Mit diesem Begriff wird auch das Kalanderwalzenpaar umfaßt. Das ist möglich, da ein Kalanderwalzenpaar gegenüber einem Kalanderscheibenpaar keine Einschränkung für die Erfindung darstellt.
Das kalandrierte Faserband KF tritt vertikal nach abwärts aus dem Kalander aus und gelangt zu einer Ablegevorrichtung und wird von dort (mittels Drehteller, nicht dargestellt) in einer Kanne abgelegt. Diese Faserbandführung ist auch in der Figur 2 mit gleichen Bezugszeichen verdeutlicht.The overlay in FIG. 1 illustrates the difference from the prior art, which is shown schematically in FIG. The fiber sliver FV which has not yet been drawn when it is introduced into the drafting system is, in the prior art, introduced into a fleece funnel via drawing rolls 67a, 68b, 69a, 69b and delivery rolls 70a, 70b and from there into a long guide tube 8 which ends in a band funnel 9. The sliver funnel deflects the fiber sliver FB about 90 ° into the nip of the calender with its calender discs 100a, 100b. In the following we speak of calender discs or a pair of calender discs. This term also includes the pair of calender rolls. This is possible because a pair of calender rolls is not a restriction for the invention compared to a pair of calender disks.
The calendered fiber sliver KF emerges vertically downward from the calender and arrives at a depositing device and is deposited from there (by means of a turntable, not shown) in a can. This sliver guide is also shown in FIG. 2 with the same reference numerals.

Ein Ausführungsbeispiel der Erfindung verkürzt den Faserbandweg und läßt das Faserbandrohr 8 entfallen. Es tritt eine zusätzliche Umlenkwalze 71 hinzu, die eine Ablenkung von etwa 60° der Vlies-Förderrichtung FV bewirkt und das Faservlies in einen Faserband-Führungskanal eingeführt, bestehend aus mehreren Funktionselementen.An embodiment of the invention shortens the sliver path and leaves that Sliver tube 8 is eliminated. An additional deflection roller 71 is added, the one Deflection of about 60 ° causes the nonwoven conveying direction FV and the nonwoven in introduced a sliver guide channel consisting of several Functional elements.

Das erste Element ist der Vliestrichter 50 mit einer Rampe 50b und einem direkt daran angeordneten Trichterbereich 50a, in dem das breit eintreffende Faservlies gefaltet, umgelegt und in einen ersten Kanalabschnitt eingeführt wird. Der Kanalabschnitt wird von einem Einsatz 40 gebildet, der auf der rückwärtigen Seite des Trichterbereich 50a des Vliestrichters 50 eingesteckt und mit einer Schraube befestigt ist. Er kann justiert werden.The first element is the fleece funnel 50 with a ramp 50b and one directly funnel area 50a arranged thereon, in which the broadly arriving nonwoven fabric folded, folded and inserted into a first channel section. Of the Channel section is formed by an insert 40, which is on the rear side of the funnel area 50a of the fleece funnel 50 and with a screw is attached. It can be adjusted.

Mit einem Griffabschnitt 51 ist der Vliestrichter 50 (mit Einsatz) so kippbar, daß die Rampe 50b in die Förderrichtung und der Trichterbereich 50a neben sie verschwenkbar ist. With a handle portion 51, the fleece funnel 50 (with insert) can be tilted so that the Ramp 50b in the conveying direction and the funnel area 50a next to it is pivotable.

Am vorderen Ende des Einsatzes 40 ist eine Lagerfläche 41a, 41b vorgesehen, die in der Winkelstellung αB, die in Figur 1 oder Figur 2b dargestellt ist, eine Abdichtung des Führungskanals zum darauf folgenden Bandtrichter 30 ermöglicht.At the front end of the insert 40, a bearing surface 41a, 41b is provided which, in the angular position α B , which is shown in FIG. 1 or FIG. 2b , enables the guide channel to be sealed off from the subsequent band funnel 30.

Die zur Mittelebene des ersten Einsatzes 40 symmetrische Lagerfläche 41a, 41b des vorderen, zylindrischen Abschnitts des Einsatzes 40 besteht aus zwei sich nach rückwärts (in Achsrichtung) verschmälernden, stetig gekrümmten Lagerflächen 41a und 41b, die in eine entsprechende Gelenkfläche 35 am Bandtrichter 30 eingreifen. Figur 4a und 4b zeigen diese Gelenkfläche in zwei Ansichten am vorderen Ende des Einsatzes 40 für den Vliestrichter 50. Ein Verschwenken des Vliestrichters 50 in Richtung α in die andere Winkellage αA löst den radial luftdichten Abschluß zwischen Vliestrichter und Bandtrichter nicht. Sowohl im eingeschwenkten (αB) als auch im ausgeschwenkten (αA) Zustand wird eine radial luftdichte Faserbandführung erreicht.The bearing surface 41a, 41b of the front, cylindrical section of the insert 40, which is symmetrical to the center plane of the first insert 40, consists of two continuously curved bearing surfaces 41a and 41b which narrow towards the rear (in the axial direction) and which engage in a corresponding joint surface 35 on the band funnel 30. 4a and 4b show this joint surface in two views at the front end of the insert 40 for the fleece funnel 50. Swiveling the fleece funnel 50 in the direction α into the other angular position α A does not release the radially airtight seal between the fleece funnel and the band funnel. Radially airtight sliver guidance is achieved both in the swung-in (α B ) and in the swung-out (α A ) state.

Wenn der Vliestrichter 50 zweiteilig gestaltet ist - mit einem entgegen der Faser-Förderrichtung eingesteckbaren Einsatz 40- ,kann an einem Haltegriff 51 die genannte Relativ-Einstellung vorgenommen werden.If the fleece funnel 50 is designed in two parts - with one against the fiber conveying direction insertable insert 40-, can be carried on a handle 51 mentioned relative setting can be made.

Durch den Vliestrichter 50, den Einsatz 40 und den Bandtrichter 30 wird das Faserband in den Führungskanal bis zum Klemmspalt 100c gefördert, wozu der Vliestrichter 50 ausgeschwenkt wird. Über Injektorbohrungen 34a, 34b, und Bohrungen 64a, 64b am Bandtrichter wird der von Hand gemäß der Figur 3 verschmälerte und in den Trichterbereich 50a gehaltene Abschnitt F1 von Faservlies eingesaugt. Ein kurzer Saugstrom in dem zylindrischen Abschnitt 31 in der zeitlichen Größenordnung von 500 ms genügt. Er wird erzeugt mit geringster Zufuhr von Druckluft zu den Injektorbohrungen 34a und 34b, um den verschmälerten Abschnitt F1 von Faservlies bis vor den Klemmspalt 100c zu fördern, da die Gelenkfläche 35 und die Lagerflächen 41a, 41b des Einsatzes 40 radial luftdicht abschließen. Mechanische Hilfen zur Einführung sind nicht erforderlich. The fiber sliver is conveyed through the fleece funnel 50, the insert 40 and the belt funnel 30 into the guide channel up to the clamping gap 100c, for which purpose the fleece funnel 50 is pivoted out. Via injector bores 34a, 34b and bores 64a, 64b on the belt funnel, the section F1 of nonwoven fabric which is narrowed by hand according to FIG. 3 and held in the funnel area 50a is sucked in. A short suction flow in the cylindrical section 31 on the order of 500 ms is sufficient. It is generated with the least supply of compressed air to the injector bores 34a and 34b in order to convey the narrowed section F1 of nonwoven fabric up to the clamping gap 100c, since the joint surface 35 and the bearing surfaces 41a, 41b of the insert 40 are radially airtight. Mechanical aids for introduction are not required.

Um den Abschnitt F1 von Faservlies und mit ihm die volle Breite F des nunmehr geformten Faserbandes durch den Klemmspalt hindurch zu fördern, wird ein kurzer Drehimpuls der Dauer T2 auf die Kalanderscheiben gegeben. Er kann sich nach einer vorbestimmten Saugzeit T1 selbst zuschalten, kann ihr überlagert sein oder aber gesondert manuell veranlaßt werden.In order to convey the section F1 of nonwoven fabric and with it the full width F of the now formed sliver through the nip, a short angular momentum of duration T 2 is applied to the calender disks. It can switch itself on after a predetermined suction time T 1 , can be superimposed on it or can be initiated separately manually.

Die Form des Bandtrichters 30 ist in den Figuren 5a, 5b und 5c deutlicher erkennbar, dort ist auch die Richtung und Anordnung der Injektorbohrungen 34a, 34b im Bandtrichter vergrößert dargestellt. Sie münden in einen zylindrischen Abschnitt 31, der das vordere Ende des Faserbandkanals bildet. Der zylindrische Abschnitt 31 weitet sich über einen kegelförmigen Abschnitt 32a auf den Durchmesser des kegelförmigen Kanals 32 auf, der von dem Einsatz 40 vorgegeben ist. Am oberen Ende des Abschnitts 32a ist die Gelenkfläche 35 vorgesehen, die der Lagerfläche 41a, 41b in ihrer Krümmung entspricht.The shape of the band funnel 30 can be seen more clearly in FIGS. 5a, 5b and 5c , where the direction and arrangement of the injector bores 34a, 34b in the band funnel are also shown enlarged. They open into a cylindrical section 31 which forms the front end of the sliver channel. The cylindrical section 31 widens via a conical section 32a to the diameter of the conical channel 32, which is predetermined by the insert 40. At the upper end of section 32a, articulation surface 35 is provided, which corresponds to the bearing surface 41a, 41b in its curvature.

Die beiden, geneigten Injektorbohrungen 34a, 34b können unter einem Winkel von etwa 45° gegenüber dem Achsabschnitt 200b des Bandtrichters 30 verlaufen. Vorteilhafterweise können sie in einer gemeinsamen Ebene im zylindrischen Abschnitt 31 mündend, parallel versetzt sein, um neben der Injektorwirkung dem eingeführten Faserband einen Drall und zusätzliche Festigkeit zu geben. Diese Anordnung zeigt Figur 5d. Die Injektorbohrungen beginnen oberhalb eines zylindrischen Abschnitts 33 des Bandtrichter 30 in einem nach außen offenen Ringkanal 36.The two inclined injector bores 34a, 34b can run at an angle of approximately 45 ° with respect to the axis section 200b of the band funnel 30. Advantageously, they can open in a common plane in the cylindrical section 31, offset in parallel, in addition to the injector effect to give the inserted sliver a twist and additional strength. This arrangement is shown in FIG . 5d . The injector bores begin above a cylindrical section 33 of the band funnel 30 in an outwardly open annular channel 36.

Ein Bandtrichter-Halter 60 gemäß Figuren 6a, 6b, 6c hat im oberen etwa zylindrischen Abschnitt 67 eine mittige, etwa zylindrische Öffnung 62, in die der Bandtrichter 30 eingesetzt wird. Nach innen offen in der zylindrischen Öffnung verläuft in umfänglicher Richtung ein Ringkanal 63, der von zwei oder mehreren zylindrischen Bohrungen 64a, 64b mit Druckluft gespeist werden kann. Ausgehend von dem Ringkanal wird die von außen eingeführte Druckluft in die geneigten Injektorbohrungen 34a, 34b bei eingesetztem Bandtrichter 30 eingeleitet, um in dem zylindrischen Abschnitt 31 des Führungskanals zu münden, der dicht am Klemmspalt 100c liegt. Die Austauschbarkeit des Bandtrichters 30 und des Einsatzes 40 ermöglicht bei Partiewechsel eine schnelle Umstellung auf veränderte Kanalweiten infolge anderen Faserbandmaterials.A band funnel holder 60 according to FIGS. 6a, 6b, 6c has in the upper approximately cylindrical section 67 a central, approximately cylindrical opening 62 into which the band funnel 30 is inserted. In the circumferential direction, an annular channel 63, which can be fed with compressed air from two or more cylindrical bores 64a, 64b, extends inwardly in the cylindrical opening. Starting from the ring channel, the compressed air introduced from the outside is introduced into the inclined injector bores 34a, 34b when the band funnel 30 is inserted, in order to open into the cylindrical section 31 of the guide channel, which lies close to the clamping gap 100c. The interchangeability of the band funnel 30 and the insert 40 enables a quick changeover to changed channel widths as a result of different fiber band material when the batch is changed.

Die Figuren 6a und 6b verdeutlichen den zylindrischen Schnabel 61 des Bandtrichter-Halters 60, der sich an einen konischen Abschnitt 68 anschließt, der den Übergang zwischen dem oberen, zylindrischen Ende 67 und dem Schnabel 61 bildet. Er hat eine Länge L und einen Durchmesser, im Querschnitt der Figur 6b als Breite b dargestellt. Der Schnabel 61 ist fest angeordnet und hat zwei Hälften, da er - wie an Figur 6c ersichtlich - seitlich geschlitzt ausgebildet ist. In die beiden erwähnten Schlitze greift gemäß der schematischen Darstellung der Figur 7 jeweils ein Segment der sich drehenden Kalanderscheiben 100a, 100b. Deutlich ist das auch an der Figur 1 in der rechten Hälfte zu erkennen. In der Mitte des Schnabels des Bandtrichter-Halters 60 - also in dem Achsabschnitt 200b der Vliesführung - kommt der Klemmspalt zu liegen, der gemäß den Figuren 7a und 7b sowohl geschlossen sein kann (Klemmspalt 100c), als auch durch Wegstellen der einen Kalanderscheibe 100b geöffnet werden kann (geöffneter Klemmspalt 100d).FIGS. 6a and 6b illustrate the cylindrical beak 61 of the band funnel holder 60, which adjoins a conical section 68 which forms the transition between the upper, cylindrical end 67 and the beak 61. It has a length L and a diameter, shown in the cross section of FIG. 6b as width b. The beak 61 is arranged in a fixed manner and has two halves, since - as can be seen in FIG. 6c - it is slit on the side. According to the schematic illustration in FIG. 7 , a segment of the rotating calender disks 100a, 100b engages in the two slots mentioned. This can also be clearly seen in FIG. 1 in the right half. In the middle of the beak of the band funnel holder 60 - in other words in the axis section 200b of the fleece guide - the clamping gap comes to rest, which according to FIGS. 7a and 7b can both be closed (clamping gap 100c) and also opened by removing one calender disc 100b can be opened (open clamping gap 100d).

Am Klemmspalt 100c oder 100d vorbei führen die einstückig angeformten Schnabelhälften 61a, 61b, die durch die erwähnten Schlitze 61c, 61d in dem zylindrischen Schnabel 61 gebildet werden, die Führungsluft. Die Führungsluft wurde zuvor über die Injektorbohrungen 64a, 64b in den Ringkanal 63 und von dort über die schräg zum Achsabschnitt 200b verlaufenden Injektorbohrungen 34a, 34b des Bandtrichters 30 in den Faserbandkanal eingeführt. Mit den Schnäbeln wird vermieden, daß die Führungsluft vor dem Spalt 100c, 100d entweicht, sie wird vielmehr über den Spalt hinaus bis hinter den Klemmspalt geführt. Zur Führung dieser Luft dient ein erster schmaler Kanalabschnitt 65a auf der einen Seite der Kalanderscheiben bzw. ein zweiter schmaler Kanalabschnitt 65b auf der anderen Seite der Kalanderscheiben, die eine annähernd halbkreisförmige Querschnittgestalt aufweisen. Der jeweilige Kanal ist sehr schmal ausgebildet gegenüber der Dicke d oder Breite b des Schnabels 61 bzw. dessen Innenwand, die unmittelbar der Seitenfläche der Kalanderscheibe benachbart ist. The integrally molded parts lead past the clamping gap 100c or 100d Beak halves 61a, 61b, through the mentioned slots 61c, 61d in the cylindrical beak 61 are formed, the guide air. The lead air was previously via the injector holes 64a, 64b in the ring channel 63 and from there via the injector bores 34a, 34b, which run obliquely to the axis section 200b of the band funnel 30 inserted into the sliver channel. With the beaks avoided that the guide air escapes in front of the gap 100c, 100d, it becomes rather led beyond the gap to behind the clamping gap. For guidance this air serves a first narrow channel section 65a on one side of the Calender disks or a second narrow channel section 65b on the other Side of the calender discs, which have an approximately semicircular cross-sectional shape exhibit. The respective channel is very narrow compared to the thickness d or width b of the beak 61 or its inner wall, which is directly the Side surface of the calender disk is adjacent.

Durch die seitliche Luftführung über den Klemmspalt hinaus mittels der Schnabelhälften 61a, 61b, die eine Länge L aufweisen, die etwa der Hälfte des Durchmessers der Kalanderscheiben im Ausführungsbeispiel entspricht, kommt der Breite b des Schnabels und der Überdeckung d der Innenseite der Schnabelhälften gegenüber der Kalanderscheibe eine abdichtende Wirkung zu, die durch deutlichen bis erheblichen, seitlichen Strömungswiderstand gegenüber den axialen, seitlichen Kanalabschnitten 65a, 65b berühungslos gebildet wird.Due to the lateral air flow beyond the clamping gap using the Beak halves 61a, 61b, which have a length L which is approximately half the length Diameter of the calender discs in the embodiment corresponds to the Width b of the beak and overlap d on the inside of the beak halves against the calender disc to a sealing effect, which by clear to considerable, lateral flow resistance compared to the axial, lateral Channel sections 65a, 65b is formed without contact.

Selbst wenn keine Berührung zwischen den Schnabelhälften 61a, 61b (den Innenseiten der Schnabelhälften) und den sich drehenden Kalanderscheiben benötigt wird, so ist gleichwohl eine fast nur axiale Luftführung am Kalanderspalt vorbei ermöglicht.Even if there is no contact between the beak halves 61a, 61b (the Inside of the beak halves) and the rotating calender discs is needed, there is nevertheless almost only axial air flow at the calender gap enables over.

Nur im Falle des geöffneten Kalanderspaltes 100d, wie er in der Figur 7b dargestellt ist, wird die Luft nicht nur am Kalanderspalt vorbei, sondern auch deutlich durch den Kalanderspalt hindurchgeleitet. Mit der Führungsluft wird das Faserband auch sogleich durch den Kalanderspalt eingefädelt und die Kalanderscheibe 100b kann anschließend zugestellt werden (geschlossene Position), um mit eingefädeltem Faserband die Betriebsstellung erreicht zu haben. Auch in diesem Fall des geöffneten Kalanderspalts ist die Abdichtungsfläche (ein Teil der Überdeckung d) gegenüber dem Luftwiderstand des nun vergrößerten Durchlaßkanales, bestehend aus den Kanalabschnitten 65a, 65b und dem geöffneten Kalanderspalt 100d, groß genug ist, um ein radiales Entweichen von Führungsluft zu vermeiden.Only in the case of the open calender gap 100d, as shown in FIG. 7b , is the air not only passed the calender gap, but also clearly passed through the calender gap. With the guide air, the sliver is also immediately threaded through the calender nip and the calender disk 100b can then be advanced (closed position) in order to have reached the operating position with the sliver threaded. In this case, too, in the open calender gap, the sealing surface (part of the cover d) is large enough in relation to the air resistance of the now enlarged passage channel, consisting of the channel sections 65a, 65b and the open calender gap 100d, in order to prevent radial escape of guide air .

Figur 8a und 8b zeigen eine Ausgestaltung einer Führungseinrichtung, die im wesentlichen einstückig ausgebildet ist und sowohl den Vliestrichter 50 als auch den Bandtrichter 30 enthält. Der Bandtrichter 30 ist dabei direkt in den Vliestrichter 50 eingesetzt und von einem Rohr-Halter 80 zusätzlich lagefixiert. Das vordere Ende des Bandtrichters 30 lagert in vergleichbaren Gelenkschalen und Lagerflächen, wie sie anhand der Figur 4b und 5c für den Einsatz 40 beschrieben wurden. FIGS. 8a and 8b show an embodiment of a guide device which is essentially made in one piece and contains both the fleece funnel 50 and the belt funnel 30. The band funnel 30 is inserted directly into the fleece funnel 50 and is additionally fixed in position by a tube holder 80. The front end of the band funnel 30 is supported in comparable joint shells and bearing surfaces, as were described for the insert 40 with reference to FIGS. 4b and 5c .

Die radiale Abdichtung wird so auch bei der Figur 8a und 8b erreicht, wo ein Rest-Führungsabschnitt 61' gegenüber den Kalanderscheiben fest angeordnet ist, zum Beispiel an dem Halter 20 gemäß Figur 9a. Der Rest-Führungsabschnitt 61' entspricht der Länge L des Bandtrichter-Halters 60 von Figur 6a. Bei dieser Ausführungsform wird die Luft über schräggestellte Injektorbohrungen 34a, 34b in den kombinierten Vliestrichter/Bandtrichter an dessen vorderem Ende eingeführt, wobei eine Verschwenkbewegung eine geringe Verschwenkung des Luft-Einführbereiches verursacht, die aber aufgrund ihrer Nähe zu dem Knickpunkt K nur gering ist.The radial seal is also achieved in FIGS. 8a and 8b , where a residual guide section 61 'is fixedly arranged with respect to the calender disks, for example on the holder 20 according to FIG . 9a . The remaining guide section 61 'corresponds to the length L of the band funnel holder 60 from FIG . 6a . In this embodiment, the air is introduced into the combined fleece funnel / belt funnel at the front end thereof via inclined injector bores 34a, 34b, with a pivoting movement causing a slight pivoting of the air introduction region, which is only slight due to its proximity to the kink point K.

Die beiden Verschwenkstellungen in den Figuren 8a und 8b sind mit α1 und α2 bezeichnet, sie entsprechen den Verschwenkstellungen αA und αB , können aber geringfügig anders dimensioniert sein, da der verschwenkbare Teil in den Figuren 8a und 8b größer bzw. länger ist, als in den Figuren 3a und 3b.The two pivot positions in FIGS. 8a and 8b are designated α 1 and α 2 , they correspond to the pivot positions α A and α B , but can be dimensioned slightly differently, since the pivotable part in FIGS. 8a and 8b is larger or longer than in Figures 3a and 3b .

In dem Einsatz 40, der zugleich Vliestrichter-Einsatz und Bandtrichter 30 ist, sind durch unterschiedliche Bohrungen und entsprechende konische Übergangsabschnitte die Abschnitte des Führungskanals definiert. Ein Austauschen des Einsatzes 40 ist gleichzeitig ein Austausch des Bandtrichters 30. Neujustierung oder Abgleicharbeiten können aufgrund der einstückigen Ausbildung entfallen.In the insert 40, which is both a fleece funnel insert and a belt funnel 30 through different holes and corresponding conical Transitional sections defined the sections of the guide channel. An exchange of the insert 40 is at the same time an exchange of the band funnel 30. Readjustment or adjustment work can be omitted due to the one-piece training.

Der ringförmige Rohr-Halter 80 liegt nicht ganz bündig an dem kombinierten Vliestrichter/Bandtrichter an, sondern läßt einen Ringraum 81 zwischen der Innenseite des Trichters und dem Außendurchmesser des weitgehend zylindrischen Kombinations-Trichter 30/40. Der Ringraum 81 führt die zur Faserführung eingesetzte Druckluft, wobei er am stirnseitigen Ende durch bündiges (ringförmiges) Anliegen an der Kombinationsdüse - unterhalb der Injektorbohrungen 34a, 34b - abgedichtet ist. Auf einer geeigneten Höhe, die vom Anwendungszweck her gewählt werden kann, liegt eine nach außen geführte Haupt-Luftzuführung, die in den Ringraum 81 mündet, dort Druckluft aufzubauen vermag und die Injektorbohrungen 34a, 34b speist. The annular tube holder 80 is not quite flush with the combined one Fleece funnel / belt funnel, but leaves an annular space 81 between the Inside of the funnel and the outer diameter of the largely cylindrical Combination funnel 30/40. The annular space 81 leads to the fiber guidance Compressed air used, whereby it is at the front end by flush (ring-shaped) Contact on the combination nozzle - below the injector bores 34a, 34b - is sealed. At an appropriate height, chosen from the application purpose there is a main air supply leading to the outside Annulus 81 opens, where compressed air can build up and the injector holes 34a, 34b feeds.

Die Injektorbohrungen sind auch in diesem Beispiel deutlich geneigt gegenüber dem Achsabschnitt 200a, sie münden dicht vor dem radial luftdicht abschließenden Gelenk am Knickpunkt K, an dem in beiden Stellungen der Figur 8 und der Figur 8b eine radiale luftdichte Lagerung erfolgt.In this example, too, the injector bores are clearly inclined with respect to the axis section 200a, they open up just before the radially airtight joint at the kink point K, at which radial airtight mounting takes place in both positions of FIG. 8 and FIG. 8b .

Die Winkel α1 und α2 sind gegenüber dem Beispiel der Figuren 2a und 2b geringfügig jeweils reduziert, aber im selben angegebenen Bereich, wie in den Figuren 2. Der genaue Winkel beträgt in diesem Ausführungsbeispiel für α2 etwa 5° für α1 etwa 25° (±10%), während in Figur 2a ein Winkel αA von etwa 30° und in Figur 2b ein Winkel von etwa 7° (±10%), im Experiment zuverlässig gearbeitet haben.The angles α 1 and α 2 are slightly in each case reduced with respect to the example of Figures 2a and 2b, but in the same specified range, as shown in Figures 2. The exact angle is in this embodiment for α 2 is about 5 ° for α 1 is approximately 25 ° (± 10%), while in Figure 2a an angle α A of approximately 30 ° and in Figure 2b an angle of approximately 7 ° (± 10%) worked reliably in the experiment.

Die Rampe 50b ist nach Figuren 8a und 8b etwas angepaßt gegenüber dem Winkel der Rampe 50b in den Figuren 2a und 2b. Er hängt zusammen mit den Winkeln α in den jeweiligen Schwenk-Endlagen; wobei die Schwenklage α1 und αA einen solchen Winkel der Rampe vorgibt, daß die Förderrichtung des Faservlies FV aus dem Ausgangsbereich der Strecke deutlich quer gerichtet ist. Dabei ist es am günstigsten, wenn die Querrichtung von FV eine leichte Komponente nach abwärts erhält, also gegenüber der Horizontalen leicht abwärts geneigt ist.According to FIGS. 8a and 8b, ramp 50b is somewhat adapted to the angle of ramp 50b in FIGS. 2a and 2b. It depends on the angles α in the respective swivel end positions; wherein the swivel position α 1 and α A specifies such an angle of the ramp that the direction of conveyance of the nonwoven fabric FV is clearly directed transversely from the exit region of the route. It is most advantageous if the transverse direction of FV has a slight component downwards, that is, it is inclined slightly downwards relative to the horizontal.

Die Rampe hat dazu entweder eine geringfügige Schräge von 1° bis 2° gegenüber dem Trichterbereich oder sie ist leicht konisch ausgebildet.The ramp has either a slight slope of 1 ° to 2 ° opposite the funnel area or it is slightly conical.

In dem Kombinationstrichter 30/40 sind in den Figuren 8a und 8b zwei verschiedene Führungskanal-Dimensionierungen dargestellt, eine enge und eine weite, jeweils mit einem konischen Absatz zum engsten zylindrischen Kanalabschnitt.In the combination funnel 30/40, two different guide channel dimensions are shown in FIGS. 8a and 8b , a narrow and a wide one, each with a conical shoulder to the narrowest cylindrical channel section.

Figur 9a und 9b zeigen in Seitenansicht und Aufsicht den Vliestrichter 50 mit seiner Rampe 50b und seinem Trichterbereich 50a gemäß der Figur 3. Die Verschwenkachse V liegt quer zum Achsabschnitt 200a, 200b und verläuft durch das luftdichte Gelenk 41a, 41b und 35, wie in den Figuren 4 und 5 erläutert. Gleichzeitig verläuft die Verschwenkachse V durch die Lager, die gebildet werden durch seitliche Lagerlappen 52a, 52b und Zapfen 50c. Auf die Zapfen sind die vorderseitig zumindest hälftig geöffnete Schwenkaufnehmer 53a, 53b aufsetzbar. Der Vliestrichter 50 ist damit entnehmbar und kippbar, bei gleichzeitig luftdichtem Abschluß des innengebildeten Führungskanals mit den Achsabschnitten 200a, 200b. 9a and 9b show a side view and a top view of the fleece funnel 50 with its ramp 50b and its funnel area 50a according to FIG. 3. The pivot axis V is transverse to the axis section 200a, 200b and runs through the airtight joint 41a, 41b and 35, as in FIGS Figures 4 and 5 explained. At the same time, the pivot axis V runs through the bearings, which are formed by lateral bearing tabs 52a, 52b and pins 50c. The pivot receivers 53a, 53b, which are at least half open on the front, can be placed on the pins. The fleece funnel 50 can thus be removed and tilted, while at the same time sealing the internally formed guide channel with the axis sections 200a, 200b.

Die Figuren 9a und 9b zeigen den schwenkbaren Vliestrichter 50 mit Rampen 50b und Trichterbereich 50a. Die Verschwenkachse V ist eingezeichnet und wird definiert von einem Gelenk, das rechts neben der Figur 9b schematisch dargestellt ist. Ein Lagerlappen 52a (auf der gegenüberliegenden Seite 52b) hat eine nach unten offene in etwa halbkreisförmige Ausnehmung, die auf einen Zapfen 50c zur Bildung eines Gelenks aufgesetzt wird. Aufgrund der sanften Übergänge am öffnenden Ende der Ausnahme 53a (am gegenüberliegenden Ende 53b) kann die Vliestrichter 50 leicht entnommen und wieder aufgesetzt werden. Die Richtung des Pfeiles F deutet das an. Gleichzeitig ist der Vliestrichter 50 um den Winkel α schwenkbar, welche Schwenkung entweder von einem Benutzer am Handgriff 51 erzeugt wird oder durch einen Vliesstau und den entstehenden Staudruck oberhalb der Verschwenkachse V veranlaßt wird, wobei die Rampe 50b in die Förderrichtung von FV eingeschwenkt wird.FIGS. 9a and 9b show the pivotable fleece funnel 50 with ramps 50b and funnel area 50a. The pivot axis V is shown and is defined by a joint, which is shown schematically to the right of FIG. 9b is. A bearing tab 52a (on the opposite side 52b) has one after open at the bottom in approximately semicircular recess, which for a pin 50c Formation of a joint is put on. Due to the smooth transitions on opening end of exception 53a (at the opposite end 53b) Fleece funnel 50 can be easily removed and replaced. The direction of the Arrow F indicates this. At the same time, the fleece funnel 50 is at the angle α pivotable, which pivoting either by a user on the handle 51 is generated or by a fleece jam and the resulting dynamic pressure above the pivot axis V is caused, with the ramp 50b in the conveying direction is swung in by FV.

Die Breite der Rampe 50b ist e und ist etwa so breit, wie der Einlauf des Trichterbereichs 50a. Er kann leicht konisch ausgebildet sein und er kann in einem Winkel Φ1 gegenüber einer Ebene E1 geneigt sein, die senkrecht zum Achsabschnitt 200a des Führungskanals liegt (vgl. Fig. 3b). Die Neigung Φ1 wird abgestimmt auf den Schwenkwinkel αA, der bei Ausklappen des Vliestrichters sich als Endlage (Anarbeitungsstellung) einstellt. In diesem Fall sollte die Vlies-Förderrichtung FV' in etwa 90° aus dem Streckwerksbereich herausführen. Dementsprechend wird im praktischen Anwendungsfall ein Winkel von etwa 30° (20° bis 40°) gewählt werden.The width of the ramp 50b is e and is approximately as wide as the inlet of the funnel area 50a. It can be slightly conical and it can be inclined at an angle Φ 1 with respect to a plane E 1 which is perpendicular to the axis section 200a of the guide channel (cf. FIG. 3b). The inclination Φ 1 is matched to the swivel angle α A , which is the end position (processing position) when the fleece funnel is unfolded. In this case, the fleece conveying direction FV 'should lead out of the drafting system area at approximately 90 °. Accordingly, an angle of approximately 30 ° (20 ° to 40 °) will be selected in practical use.

Der Einlaufbereich des Trichterbereichs 50a hat einen demgegenüber etwas reduzierten Winkel Φ2 gegenüber der Ebene Φ1. Die Differenz dieser beiden Winkel  beträgt zwischen 1° und 5°. The inlet area of the funnel area 50a has an angle Φ 2 that is somewhat reduced compared to the plane Φ 1 . The difference between these two angles  is between 1 ° and 5 °.

Mit einer Ausgestaltung des Vliestrichters wird eine verbesserte, d.h. konstante Einrollung des Vlieses beim Einführen des Bandes in den Führungskanal erreicht.With an embodiment of the fleece funnel, an improved, i.e. constant Rolling of the fleece reached when inserting the tape into the guide channel.

Gleichzeitig wird die Maschine gegen Ausfallzeiten so gesichert, daß sich der Vliestrichter selbst herausschwenkt und den weiteren Faserbandlauf in den Außenraum der Maschine leitet, wo das nicht mehr ordnungsgemäß verstreckte Faserband leicht entfernt werden kann.At the same time, the machine is secured against downtime so that the Fleece funnel itself swings out and the further sliver run in the Outside of the machine conducts where that is no longer properly stretched Sliver can be easily removed.

Die Bedienzeiten werden gekürzt und vereinfacht. Die Rampe 50b des Vliestrichters ermöglicht neben der Staustellung auch die Anarbeitungsstellung, ohne daß ein Benutzer zunächst Faserband aus dem Streckwerksbereich ausfädeln muß. Letzteres geschieht automatisch.The operating times are shortened and simplified. The fleece funnel ramp 50b enables in addition to the jam position also the processing position without a User must first thread out sliver from the drafting system area. The latter happens automatically.

In Verbindung mit der Oberwalzenentlastung bei der Wickelbildung schließt die Rampe 50b den möglichen Freiraum für unkontrollierten Faser-Vliestransport und damit Wickelbildung. Die Maschine kann elektrisch überwacht werden.In connection with the top roller relief during winding formation, the Ramp 50b the possible space for uncontrolled fiber fleece transport and with it winding formation. The machine can be monitored electrically.

Claims (30)

  1. A method of operating a guiding device for sliver for a sliver-processing textile machine which is arranged between a pair of delivery rollers (70a, 70b) and a pair of calender rollers (100a, 100b), the guiding device having nozzle portions which form a guiding channel, the elongate course of which corresponds to a nozzle axis (200) produced by two portions (200a, 200b) inclined with respect to each other, and the two axis portions (200a, 200b) meet at a perceptible kink (K) and the inlet of the guiding channel is formed by a fleece funnel (50) and fibre fleece is conveyed by the pair of delivery rollers (70a, 70b) into the fleece funnel (50), characterized in that
    a first portion (200a) of a nozzle axis (200) is automatically pivoted with respect to a second axis portion (200b) during the conveying of fleece, when the fleece funnel (50) situated downstream of the delivery rollers (70a, 70b) conveys less fleece away than is conveyed thereto, wherein the first nozzle portion (200a) is pivoted about a pivoting axis (V) which passes through the kink (K) and extends transversely through the guiding channel and parallel to the longitudinal axis of a calender roller (100a, 100b), and a ramp (50b) is pivoted in front of the outlet of the delivery rollers (70a, 70b) which the fibre fleece encounters, in order to be deflected transversely (FV') out of the conveying direction (FV) of the fibre fleece.
  2. A method according to Claim 1, characterized in that the inwardly pivoted ramp (50b) of the fleece funnel (50) is situated above the pivoting axis (V).
  3. A method according to Claim 1, characterized in that the pivoting of the axis portion (200a) generates a signal which is utilized on the textile machine to stop the delivery rollers (70a, 70b).
  4. A guiding device for sliver for a sliver-processing textile machine which is arranged between a pair of delivery rollers (70a, 70b) and a pair of calender rollers (100a, 100b),
    the guiding device having nozzle portions (30, 40) which form a guiding channel, the elongate course of which corresponds to a nozzle axis (200) produced by two portions (200a, 200b) inclined with respect to each other, and the two axis portions (200a, 200b) meet at a perceptible kink (K), characterized in that an axis portion (200a) is adjustable at an angle (αA, αB ) with respect to the other axis portion (200b), wherein a pivoting axis (V), which is orientated transversely through the guiding channel and parallel to a longitudinal axis of the calender roller (100a, 100b), is arranged so as to adjust the axis portion (200a).
  5. A guiding device according to Claim 4, characterized in that in the vicinity of the pivoting axis (V) of the axis portions (200a, 200b) the nozzle inserts (30, 40) mutually adjacent in that region are joined in a positively locking manner by means of a bearing face (41a, 41b) and an articulation face (35), so that the guiding channel is closed off in an air-tight manner in the radial direction.
  6. A guiding device according to one of the aforesaid Claims 4 to 5, characterized in that the median axes of portions of the guiding channel form the axis portions (200a, 200b).
  7. A guiding device according to one of the aforesaid Claims, characterized in that all the nozzle inserts (30, 40, 50, 60) are arranged closely to one another.
  8. A guiding device according to one of the aforesaid Claims, characterized in that a pivoting joint (50c; 53a, 53b) for the pivotable nozzle inserts (40, 50) is formed on the holder (20) of the other non-pivotable nozzle inserts (60, 30) in order to form the pivoting axis (V).
  9. A guiding device according to one of the aforesaid Claims, characterized in that a first nozzle portion comprises as a fleece funnel (50) a ramp (50b) and a funnel area (50a), wherein the ramp (50b) or the funnel area (50a) is situated in one or other end position of a tilting movement (αA, αB ) of the fleece funnel (50) in the conveying direction (FV) of the fibre fleece.
  10. A guiding device according to Claim 9, characterized in that the fleece funnel (50) has a nozzle insert (40).
  11. A guiding device according to one of the aforesaid Claims, characterized in that a deflecting roller (71) is arranged with respect to a pair of delivery rollers (70a, 70b) in such a way that the conveying direction (FV) of the fibre fleece makes a perceptible change in its path in the direction of the nozzle axis (200).
  12. A guiding device according to Claim 11, characterized in that a perceptible change in the path of the conveying direction (FV) by a change in angle of more than 20° and less than 90° - in particular about 60° - with respect to an original conveying direction (FB) without the deflecting roller (71) is achieved.
  13. A guiding device according to one of the aforesaid Claims, characterized in that the kink (K) of the two axis portions (200a; 200b) is situated in the pivoting axis (V).
  14. A guiding device according to one of Claims 9 to 13, characterized in that the fleece funnel (50) receives the fibre fleece emerging from the delivery rollers (70a, 70b), rolls it up and joins it together, wherein the fleece funnel (50) does not pivot out of an operating position (angle αB ).
  15. A guiding device according to Claim 14, characterized in that in the event of an accumulation of fleece in the funnel area (50a) the fleece funnel (50) automatically pivots out of the operating position (angle αB ) about the pivoting axis (V) and, during this, pivots the ramp (50b) into the conveying direction (FV) of the fibre fleece, so that the fibre fleece conveyed by the delivery rollers (70a, 70b) is deflected substantially transversely (FV') out of the conveying direction (FV).
  16. A guiding device according to Claim 14 or 15, characterized in that the stop of the fleece funnel (50) out of the operating position (angle αB ) into an attachment position or fleece-accumulation position (αA ) is buffered.
  17. A guiding device according to Claim 16, characterized in that the buffer is exchangeable.
  18. A guiding device according to Claim 16 or 17, characterized in that the fleece-accumulation position (αA ) of the fleece funnel (50) corresponds to the attachment position (αA ).
  19. A guiding device according to one of Claims 8 to 18, characterized in that the pivoting joint (50c; 53a, 53b) has two pins (50c) which are orientated in the pivoting axis (V) and onto each of which one respective bearing plate (52a, 52b) with one respective substantially semicircular opening (53a, 53b) can be positioned, which are attached to the two transverse sides of the fleece funnel (50).
  20. A guiding device according to one of Claims 9 to 19, characterized in that the ramp (50b) of the fleece funnel (50) is arranged laterally offset with respect to the axis portion (200a) of the funnel area (50a).
  21. A guiding device according to Claim 20, characterized in that the inlet area of the funnel area (50a) has an essentially rectangular shape.
  22. A guiding device according to Claim 20; characterized in that the ramp (50b)
    a) is perceptibly inclined, in particular at an angle (Φ1 ) of between 20° and 40°; with respect to a plane (E1 ) orientated at a right angle to the axis portion (200a) of the funnel area (50b),
    b) has a width (e) transversely to the conveying direction (FV) which is at least as wide as the inlet area of the funnel area (50a).
  23. A guiding device according to Claim 21, characterized in that the inlet area of the funnel area (50a) is situated in a plane which is inclined at an angle (Φ2 ) with respect to a plane (E1 ) orientated at a right angle to the axis portion (200a) of the funnel area (50a), and the angle (Φ2 ) is smaller by an amount (δ) than the angle (Φ1 ) of the ramp (50b).
  24. A guiding device according to one of Claims 20 to 22, characterized in that the fleece funnel (50) is provided with lateral bearing plates (52a, 52b) which are arranged flat in the conveying direction and for the insertion or removal (F) of pins (50c) they are provided on their free ends with bearing receptacles (53a, 53b) which open.
  25. A guiding device according to Claim 24, characterized in that the length of the bearing plates (52a, 52b) is selected in such a way in conjunction with the width (e) and the angle (Φ1 ) of the ramp (50b) that the ramp (50b) is pivoted over a pre-determined pivoting angle (α) of the fleece funnel (50) to the position of the funnel area (50a) and there it deflects the fibre fleece substantially transversely (FV') to the conveying direction (FV).
  26. A guiding device for sliver for a sliver-processing textile machine which is arranged between a pair of delivery rollers (70a, 70b) and a pair of calender rollers (100a, 100b), the guiding device having nozzle portions (30, 40) which form a guiding channel, the elongate course of which corresponds to an axis portion (200a), characterized in that the axis portion (200a) is adjustable at an angle (α1, α2 ) with respect to another axis portion (200b) of a residual guiding portion (61').
  27. A guiding device according to Claim 26, characterized in that the axis portion (200a) and the axis portion (200b) meet at a kink (K).
  28. A guiding device according to one or both of Claims 26 and 27, characterized in that a pivoting axis is associated with the kink (K) in order to adjust the guiding channel with the axis portion (200a), the orientation of the said pivoting axis being directed transversely through the opening of the guiding channel and parallel to a longitudinal axis of the calender rollers (100a, 100b).
  29. A guiding device according to Claim 28, characterized in that the guiding channel is formed in one piece from a fleece funnel (50) with the insert (40) and a sliver funnel (30).
  30. A guiding device according to Claim 29, characterized in that a ramp (50b) is arranged on the fleece funnel (50).
EP96102896A 1995-04-07 1996-02-27 Guiding device for sliver for a sliver processing textile machine and method for its operation Expired - Lifetime EP0736620B1 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE29506107U 1995-04-07
DE29506107 1995-04-07
DE29511918U 1995-07-24
DE29511918 1995-07-24
DE19535347A DE19535347A1 (en) 1995-04-07 1995-09-22 Swiveling fleece funnel for fleece guidance without a guide tube
DE19535347 1995-09-22

Publications (2)

Publication Number Publication Date
EP0736620A1 EP0736620A1 (en) 1996-10-09
EP0736620B1 true EP0736620B1 (en) 1998-06-17

Family

ID=27215504

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96102896A Expired - Lifetime EP0736620B1 (en) 1995-04-07 1996-02-27 Guiding device for sliver for a sliver processing textile machine and method for its operation

Country Status (3)

Country Link
US (1) US5689856A (en)
EP (1) EP0736620B1 (en)
JP (1) JP3809967B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19838700B4 (en) * 1997-09-26 2012-08-30 Rieter Ingolstadt Gmbh Guiding device of sliver of a sliver-processing textile machine

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19618642B4 (en) * 1996-05-09 2007-07-19 Rieter Ingolstadt Spinnereimaschinenbau Ag fleece funnel
JPH11222735A (en) * 1997-10-30 1999-08-17 Zellweger Luwa Ag Suction equipment for fibrous intermediate product extended lengthily
DE19945319B4 (en) * 1999-09-22 2010-01-14 Rieter Ingolstadt Gmbh fleece funnel
US8578994B2 (en) * 2006-12-19 2013-11-12 The Goodyear Tire & Rubber Company Applicator head for tire cord construction
CN203429309U (en) * 2010-11-30 2014-02-12 拉卡什米机械厂有限公司 Web guiding device with stop motion arrangement

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE290679C (en) *
US614819A (en) * 1898-11-29 Xsttobe albasinl
GB406508A (en) * 1933-04-25 1934-03-01 Louis Jacobi Improvements in and relating to funnel guides for the delivery of slivers form cotton drawing frames
GB632266A (en) * 1947-09-02 1949-11-18 Howard & Bullough Ltd Improvements in or relating to drafting apparatus for textile spinning and like machines
DE801254C (en) * 1949-03-27 1950-12-28 Suedd Spindelwerke Zinser Device for compacting a fuse
GB786528A (en) * 1955-05-31 1957-11-20 Tmm Research Ltd Improvements in drafting apparatus for textile spinning and like machines
US2996873A (en) * 1958-11-07 1961-08-22 Callaway Mills Co Method for producing multi-colored single yarn
CS179204B1 (en) * 1975-09-09 1977-10-31 Miroslav Hanus Equipment for thickening and transferring of textile fibres
FR2466527A1 (en) * 1979-09-28 1981-04-10 Alsacienne Constr Meca AUTOMATIC DEVICE FOR INTRODUCING A TEXTILE FIBER SAIL IN A COILER
FR2537609A1 (en) * 1982-12-13 1984-06-15 Mat Textil Ste Als Const DEVICE FOR HIGH-SPEED GUIDING OF A TEXTILE FIBER SAIL AND FOR FORMING A WHEEL IN A FRONT GUIDE CHANNEL INTRODUCTION IN A STACKING COILER
DE3612133C2 (en) * 1986-04-10 1995-02-16 Truetzschler Gmbh & Co Kg Belt guide channel between output rollers and calender rollers on a spinning preparation machine
DE3801688C2 (en) * 1988-01-21 1999-04-08 Truetzschler Gmbh & Co Kg Belt guide channel
DE3807582A1 (en) * 1988-03-08 1989-09-21 Hollingsworth Gmbh DEVICE FOR COMPRESSING AND AUTOMATICALLY IMPLEMENTING A TEXTILE FIBER TAPE
DE3839413A1 (en) * 1988-11-22 1990-05-23 Rieter Ag Maschf FUNNEL ARRANGEMENT AT THE OUTPUT OF A CARD
DE4235653C1 (en) * 1992-10-22 1994-03-17 Rieter Ingolstadt Spinnerei Fleece funnel of a textile drafting system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19838700B4 (en) * 1997-09-26 2012-08-30 Rieter Ingolstadt Gmbh Guiding device of sliver of a sliver-processing textile machine

Also Published As

Publication number Publication date
JPH0987934A (en) 1997-03-31
JP3809967B2 (en) 2006-08-16
US5689856A (en) 1997-11-25
EP0736620A1 (en) 1996-10-09

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