EP0704562A1 - Guidage glissant à la sortie d'une courroie transversale - Google Patents

Guidage glissant à la sortie d'une courroie transversale Download PDF

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Publication number
EP0704562A1
EP0704562A1 EP95113197A EP95113197A EP0704562A1 EP 0704562 A1 EP0704562 A1 EP 0704562A1 EP 95113197 A EP95113197 A EP 95113197A EP 95113197 A EP95113197 A EP 95113197A EP 0704562 A1 EP0704562 A1 EP 0704562A1
Authority
EP
European Patent Office
Prior art keywords
guide
sliding guide
roller
sliver
card
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP95113197A
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German (de)
English (en)
Inventor
Peter Netzhammer
Beat Naef
Peter Oswald
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.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP0704562A1 publication Critical patent/EP0704562A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/02—Carding machines
    • D01G15/12—Details
    • D01G15/46—Doffing or like arrangements for removing fibres from carding elements; Web-dividing apparatus; Condensers

Definitions

  • the invention relates to band formation on a card or other nonwoven or pile-delivering machine.
  • Spinning preparation machines in particular cards, usually have a predetermined working width and a predetermined material flow direction transverse to the working width.
  • the material supplied e.g. in the form of a fleece, also called flores
  • the nonwoven must be brought together in a nonwoven collecting area transversely to the direction of material flow, the belt normally being conveyed out of the machine in the direction of material flow.
  • the clamping means is at the same time designed as a deflection guide, since the fiber band is deflected forward again on one side (ie again in the direction of material flow) after being guided must then be left to leave the machine (e.g. to be delivered to a tape rack).
  • the invention provides a belt-forming unit for a spinning preparation machine, which has a guide to guide a fleece supplied by the machine in a fleece collecting area to at least one location to the side of the collecting area, characterized in that a sliding guide is provided at the location mentioned to redirect the sliver in the material flow direction in a predetermined direction.
  • the direction in which the sliver leaves the sliding guide can be the material flow direction mentioned.
  • the sliding guide can, however, be adapted to a different pull-off direction.
  • the sliding guide preferably consists of one or more supports and an easily replaceable guide part attached to the support.
  • the material of the guide part can be adapted to the requirements (especially the processed fiber material). Possible materials for the guide part are, for example, plastic or brass. However, the guide part can consist of a base material with a surface coating.
  • the card unit shown in FIG. 1 comprises a filling chute 19 which receives fiber material from a schematically indicated flock transport system 18 and forms a wad 17 therefrom, which is passed on to the feeding device 16 of the card 28.
  • the card itself is of conventional design with a breeze 30, reel 32, revolving lid device 34 and customer 36, which forms part of the outlet 38.
  • the outlet is explained in more detail below with reference to the other figures.
  • a sliver 40 is formed in the card outlet, which is delivered to the sliver storage device (can press or the can holder) 42, where the sliver is deposited in turns in a can 44.
  • the work rolls 30, 32, 36 and the rolls of the outlet 38 essentially determine the predetermined direction of material flow through the machine.
  • the outlet according to FIG. 2, together with the taker 36, comprises a take-off roller 46, cleaning roller 48, transfer roller 50 and a pair of pinch rollers 52.
  • the reference numeral 54 denotes a suction device, which, however, plays no role in connection with this invention and is not described further.
  • a pinch roller of the pair 52 is again shown in FIG. 3 from above, in connection with a so-called cross belt 56, as a result of which the nonwoven fabric 58 supplied by the pinch roller pair is deflected laterally and by means of a deflecting roller 60 to form a fiber band 40 (see also FIG. 1). is summarized (for example according to EP-A-549534).
  • the sliver 40 is drawn off by means of a pair of stepped rollers 62 through a funnel 64 and delivered from the card (machine) 28 at a predetermined speed.
  • a suitable step roller pair unit is shown in EP-A-370232. It can be clearly seen from FIG.
  • the tape storage device 42 is an autonomous machine with its own drive and can be set up freely in relation to the card 28. It comprises a frame 66 with a head section 68, a foot section 70 and an interposed can receiving station (no reference number). The direction in which the belt 40 leaves the card is therefore not necessarily identical to the aforementioned material flow direction over the work rolls of the card.
  • FIGS. 4 and 5 and 6 Two versions of the cross belt 56 are shown in FIGS. 4 and 5 and 6, the geometry of these arrangements deviating from the geometry according to FIGS. 1 and 3 in that the strand 23 of the belt 56 runs horizontally.
  • the pile take-off roller 46 and the transfer roller 50 guide the fiber web 14 into a nip between two nip rollers 20 and 21 (see FIG. 4) of the pair 52 rotating in the directions K.1 and K.2, the roller 20 being in the same direction rotates as the pile removal roller 46 and the roller 21 rotates in the same direction as the roller 50.
  • the rollers 20 and 21 are highly polished rollers which place the fiber web on the surface of an upper run 23 (FIG. 4) of the cross belt 56 (FIG 6).
  • This strand 23 moves in the axial direction of the clamping rollers 20, 21, in a direction perpendicular to the plane of the drawing into this plane.
  • the lower run is marked with 24.
  • the cross belt is guided over two deflection rollers 25 and 25.1 (FIG. 6), which are arranged adjacent to the axial ends of the rollers and rotate about axes 26.
  • the upper run thus runs in a horizontal direction.
  • the fiber web is brought together over the entire length of the nip of the pinch rollers 20, 21, for example of about 1 m in length, so that on the deflecting roller at the end of the cross belt a fiber band 40 of about 2 to 5 cm in thickness follows Sliver receiving element, such as a sliver funnel (not shown) is released.
  • Both the take-off 36 and the pile removal roller 46, the transfer roller 50 and the pinch rollers 20, 21 extend over the entire width (working width) of the reel, that is to say in our case over a width of one meter.
  • the shaft 26 shown therein is rotatably mounted at one end of the shaft in a rotary bearing 130 and at the other end in a rotary bearing 131 and driven by a drive motor 132 which is fixedly attached to a machine frame 129 of the card becomes.
  • the pivot bearings 130 and 131 are each housed in a support body 128 which is attached to the machine frame 129.
  • a support body 128 fastened to the machine frame 129 is also provided for the deflection roller 25.1.
  • FIG. 4 shows that a fiber guide 133 is arranged to the right of the upper run 23 and a fiber guide 134 to the left of the upper run 23, as seen with reference to FIG. 4.
  • the fiber guide 133 is attached to the support body 128 of the roller 25 or 25.1 by means of an associated foot 137 and the fiber guide 134 by means of an associated foot 138.
  • a part 139 which projects obliquely upwards and forms the fiber guide.
  • a similar part 140 is integrally formed with the foot 136.
  • the fiber guide 133 has a fiber guide surface 135 and the fiber guide 134 has a fiber guide surface 136, which apart from a few tenths of a millimeter (for example five tenths of a millimeter) on the surface of the pinch rollers 20 and. 21 are sufficient, so that only a very small gap remains for any air currents sweeping across the upper run 23.
  • the fiber guides 133 and 134 lie close to the sides (not marked) of the upper strand 23, but only so tightly that there is no unnecessary friction between the moving upper strand 23 and the stationary fiber guides 133 resp. 134 arises.
  • the play in the gap between the aforementioned sides of the run and the fiber guides must be as small as possible, which must be determined on the basis of tests, and depending on that Cross belt material used. can vary depending on the thermal expansion of the material.
  • Fig. 5 shows a further variant in that the guide parts 139.3, respectively. 140.3 together with a floor 141.1 form a trough 141 in which the upper run 23 is guided.
  • the guide parts 139.3 and 140.3 are each fastened to the support body 28 of the deflection roller 25 and 25.1 by means of a foot 137.1, with which the trough 141 is fixed in a stationary manner.
  • Figure 6 shows a section according to section lines I, i.e. this shows the deflection rollers 25 and 25.1 as well as the fiber web 14 combined into a sliver 40.
  • the arrow U in the deflection roller 25 (FIG. 6) shows the direction of rotation of the rollers 25 and 25.1.
  • FIGS. 7 to 9 also show the approximate running of the belt 40 as it approaches and leaves the sliding guide.
  • the deflection roller 25 adjacent to the sliding guide is indicated schematically in each of FIGS. 7 to 9.
  • the band 40 therefore moves from left to right into the sliding guide and then "forwards" out of the plane of the sheet.
  • the (same) band 40 moves from the bottom upwards into the sliding guide and then from right to left when it leaves the sliding guide. 9 is therefore also from right to left and obliquely downwards.
  • the plane 23A corresponds approximately to the top of the run 23 (FIG. 6), which collects the fleece 58 and delivers it in the form of a band 40 to the sliding guide.
  • Each wall 73, 75, 76 offers the band 40 a respective sliding surface 77, 78, 79, the surfaces 77, 78 being connected by a curved surface 80 (FIG. 7).
  • the belt normally does not touch the top wall 75.
  • the required deflection of the tape is achieved in that the tape is pulled out of the tape-forming unit by a take-off device (not shown) in the direction of movement after the card spool.
  • the band entering the sliding guide initially contacts surface 77, is thereby guided into curve 80 and is then continued by surface 78.
  • the transitions from surface 77 to surface 80, and from the latter to surface 78 take place as smoothly as possible and without places where the belt is no longer guided.
  • the band Lift 40 off surface 78 before reaching the end of that surface (as viewed in the direction of travel).
  • the most suitable material can be selected depending on the fiber material - such materials are cotton, synthetic fibers, viscose fibers, etc.
  • the guide part is preferably fastened to a carrier element by means of fastening means (e.g. bolts, not shown) which can be easily loosened or removed so that the guide part can be easily replaced.
  • fastening means e.g. bolts, not shown
  • holes 82 FIGGS. 7 and 8 can be provided in the carrier elements.
  • Fig. 9 shows schematically a side plate at the end of the cross belt take-off from the slide guide.
  • a similar plate (not shown) can support the carriers 70, 72.
  • the side plate is mounted in the card frame and is provided with openings 86, 88 to accommodate bearing units for the pinch rollers 20, 21.
  • the slide guide can be exchanged easily and inexpensively, it also enables the direction of withdrawal of the sliver (i.e. the direction in which the sliver leaves the same guide) to be adapted to the design of the card's outlet section.
  • the draw-off direction is essentially the same as the direction of material flow over the work rolls of the card.
  • FIG. 9 shows small changes in the direction of take-off with dashed lines, the fiber sliver still remaining in a predetermined vertical plane. This "deduction level" could also be changed with respect to the material flow direction.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP95113197A 1994-08-30 1995-08-23 Guidage glissant à la sortie d'une courroie transversale Withdrawn EP0704562A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH264694 1994-08-30
CH2646/94 1994-08-30

Publications (1)

Publication Number Publication Date
EP0704562A1 true EP0704562A1 (fr) 1996-04-03

Family

ID=4238433

Family Applications (1)

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EP95113197A Withdrawn EP0704562A1 (fr) 1994-08-30 1995-08-23 Guidage glissant à la sortie d'une courroie transversale

Country Status (1)

Country Link
EP (1) EP0704562A1 (fr)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE168617C (fr)
US3084399A (en) * 1959-06-26 1963-04-09 Alsacienne Constr Meca Means for handling roving of fiber material
US3438092A (en) * 1967-01-09 1969-04-15 William A Powell Safety shield for cotton carding machines
GB1155598A (en) * 1965-07-22 1969-06-18 Tmm Ltd Improvements in web condensing arrangements on textile carding machines
DE2403326A1 (de) * 1973-01-31 1974-08-01 Thomason Jun Bahnkontrollvorrichtung fuer eine krempelmaschine
DE3834038A1 (de) 1987-10-12 1989-04-20 Central Glass Co Ltd Verfahren zur herstellung von 1,1,1-trifluor-2,2-dichlorethan aus trifluortrichlorethan
JPH01272830A (ja) * 1988-04-20 1989-10-31 Gifu Youmou Kogyo Kk しのの製造方法
DE3834039A1 (de) 1988-10-06 1990-04-12 Rieter Ag Maschf Querbandanordnung am ausgang einer karde
EP0370232A2 (fr) 1988-11-22 1990-05-30 Maschinenfabrik Rieter Ag Disposition d'un entonnoir à la sortie d'une machine de cardage
EP0412256A1 (fr) * 1989-08-07 1991-02-13 TRÜTZSCHLER GMBH & CO. KG Procédé et dispositif de rattache automatique
EP0549534A1 (fr) 1991-12-20 1993-06-30 Maschinenfabrik Rieter Ag Machine de cardage avec une bande transversale pour le guidage d'un voile de fibres

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE168617C (fr)
US3084399A (en) * 1959-06-26 1963-04-09 Alsacienne Constr Meca Means for handling roving of fiber material
GB1155598A (en) * 1965-07-22 1969-06-18 Tmm Ltd Improvements in web condensing arrangements on textile carding machines
US3438092A (en) * 1967-01-09 1969-04-15 William A Powell Safety shield for cotton carding machines
DE2403326A1 (de) * 1973-01-31 1974-08-01 Thomason Jun Bahnkontrollvorrichtung fuer eine krempelmaschine
DE3834038A1 (de) 1987-10-12 1989-04-20 Central Glass Co Ltd Verfahren zur herstellung von 1,1,1-trifluor-2,2-dichlorethan aus trifluortrichlorethan
JPH01272830A (ja) * 1988-04-20 1989-10-31 Gifu Youmou Kogyo Kk しのの製造方法
DE3834039A1 (de) 1988-10-06 1990-04-12 Rieter Ag Maschf Querbandanordnung am ausgang einer karde
EP0370232A2 (fr) 1988-11-22 1990-05-30 Maschinenfabrik Rieter Ag Disposition d'un entonnoir à la sortie d'une machine de cardage
EP0412256A1 (fr) * 1989-08-07 1991-02-13 TRÜTZSCHLER GMBH & CO. KG Procédé et dispositif de rattache automatique
EP0549534A1 (fr) 1991-12-20 1993-06-30 Maschinenfabrik Rieter Ag Machine de cardage avec une bande transversale pour le guidage d'un voile de fibres

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 14, no. 37 (C - 680) 24 January 1990 (1990-01-24) *

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