EP0432430A1 - Appareil pour supporter le passage de la nappe de fibres du cylindre cardeur au cylindre detacheur - Google Patents

Appareil pour supporter le passage de la nappe de fibres du cylindre cardeur au cylindre detacheur Download PDF

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Publication number
EP0432430A1
EP0432430A1 EP90120848A EP90120848A EP0432430A1 EP 0432430 A1 EP0432430 A1 EP 0432430A1 EP 90120848 A EP90120848 A EP 90120848A EP 90120848 A EP90120848 A EP 90120848A EP 0432430 A1 EP0432430 A1 EP 0432430A1
Authority
EP
European Patent Office
Prior art keywords
air
gap
air baffle
card according
drum
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Withdrawn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
EP90120848A
Other languages
German (de)
English (en)
Inventor
Erich Hohloch
Hansruedi Fehr
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 EP0432430A1 publication Critical patent/EP0432430A1/fr
Withdrawn legal-status Critical Current

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    • 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
    • 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
    • D01G15/465—Doffing arrangements for removing fibres using, or cooperating with, pneumatic means

Definitions

  • the invention relates to a card with a reel on which a fiber layer to be carded lies, and with a take-off roll (also called a doffer roll), which takes over the carded fiber layer as a nonwoven, and with a gap provided in this way between the reel and take-up roll the entire length of the spool extending air baffle, which forms a converging gap with the surface of the spool, such that the air flowing in the diverging gap is guided through the air baffle in such a way that the transfer of the fleece to the take-off roller is supported.
  • a take-off roll also called a doffer roll
  • the previous embodiment was such that the air baffle was an edge, seen in the circumferential direction of the reel, of an as cover plate provided in the sub-carding zone, which was arranged at a predetermined distance from the reel surface and the customer surface.
  • the exact position of this part had to be adjusted time-consuming with the help of tests and was only valid for given parameters, such as drum speed, and material to be processed.
  • the air conveyed from the drum surface was in the converging gap between this air baffle and the drum surface and then in the narrowest gap, i.e. the gap between the aforementioned cover plate and the drum surface, promoted.
  • the disadvantage of this embodiment was that the air conditions in the diverging gap between the drum surface and the customer surface and also around the free end of the air baffle were different depending on the air flow in the aforementioned gap between the drum surface and cover plate, which had a variable influence on the fleece guidance from the drum surface to the surface of the customer (also called customer roller).
  • This influence changed, for example, with the occupancy density of the drum set and the customer set, with the peripheral speed and also with the air conditions in the sub-carding zone between the drum surface and the latter Sheet metal covering the surface.
  • the advantage of the invention is that the respectively set flow conditions in the diverging gap between the drum surface and the surface of the customer can be changed in a simple manner and that the flow conditions can be kept constant by measures mentioned later in the description.
  • FIG. 1 schematically shows a card reel 1 (only partially and shown with dash-dotted lines) and a take-off roll 2 (also called doffer roll) (also shown schematically and with dash-dotted lines).
  • the direction of rotation of the drum as well as the direction of rotation of the take-off roller is each marked with an arrow II. III marked.
  • An air baffle 4 protrudes into the diverging gap 3 between the card drum 1 and the take-off roller 2.
  • a nose 5 is provided in the direction of rotation of the take-up roller 2 at the free end of this air baffle 4.
  • the air baffle 4 together with the nose 5 extends over the entire length L of the drum, respectively. the take-off roller.
  • the air baffle 4 has a foot part 6, which is fastened by means of screws 7 on a support 8, which in turn is firmly connected to a machine frame part 9 at its foot end.
  • the air baffle 4 has a predetermined distance A from the drum 1.
  • the surface of the drum 1 and the take-off roller 2 is shown in FIG. 1 with dash-dotted lines and in FIG. 2 with solid lines. These surfaces mean the sum of all peaks on the reel, respectively. sets drawn on the take-off roller. This means that the distance A is actually the distance between the narrowest point of the air baffle 4 and the tips of the drum set.
  • clothing is well known and therefore not explained further. It should only be mentioned that this can be either all-steel or wire clothing.
  • the foot part 6 has slots 10, so that the foot part 6, in which the screws 7 are guided, can be displaced in relation to the support 8 in the directions toward or away from the drum surface.
  • the foot section 6 and the support 8 are provided with measurement grooves 11 on the two faces (only visible on one face) Mistake.
  • Such measuring grooves are known from the measuring tools, for example from the slide gauges.
  • the nose 5 is at a distance B from the surface of the take-off roller 2. This distance is essentially predetermined and is determined by tests. The changes in this distance B due to changes in the distance A are negligible.
  • the length M of the nose 5 is to be determined initially by experiments.
  • FIG. 2 shows the surface of the drum 1 and the surface of the take-off roller 2 not with dash-dotted lines but with solid lines.
  • the dash-dotted lines drawn concentrically with these solid lines indicate the clothing depth G of the reel, respectively. the clothing depth G.1 of the take-off roller.
  • a window 12 is indicated in FIG. 2 with the dash-dotted rectangle.
  • This window is provided in two so-called card plates, which cover the two end faces of the drum, respectively.
  • the pickup roller on the one hand, and on the other hand, the supports for the pivot bearings of these elements. As described later, these windows simplify the handling of the air baffle 4.
  • a light source can be used to divert the gap 3, respectively. the course of the fleece from the drum to Customers to illuminate.
  • An opening angle of the air baffle 4 is enclosed on the one hand by a surface 13 of the air baffle 4 lying opposite the drum surface and on the other hand by an imaginary tangential plane 14 placed on the drum surface.
  • the tangential plane is placed on that surface line of the drum surface which lies opposite the outermost edge of the air baffle 4 and is marked with the arrow T.
  • the angle is essentially fixed and is determined by tests.
  • the drum surface and, to a lesser extent, the surface of the customer carry air in the direction of rotation II or. III with, which is conveyed into the converging gap 15, which is formed by the drum surface and the surface 13.
  • This air supply creates a dynamic pressure in the converging gap 15, which is larger or smaller depending on the size of the distance A.
  • FIG 3 shows a variant of the devices of FIGS. 1 and 2, in which, in addition to the air baffle 4 shown and described in FIGS. 1 and 2, there is also an air wall 20 opposite the foot part 6 of the air baffle 4, which is at a distance C from the foot part 6 has.
  • This air wall 20 is also adjustable analogously to the air baffle 4 and can be fixed on a support 21 by means of screws 22. The setting can also be facilitated with the aid of measuring grooves 23.
  • the carrier can either be firmly connected to the machine frame part 9 or can be screwed onto the machine frame part with the aid of screws 24, which are guided in slots in the carrier part. As a result, the carrier part 21 is arranged displaceably in the arrow directions K.
  • the support 8 which is either firmly connected to the machine frame part 9, as shown in FIG. 2, or can be screwed to the machine frame part 9 with the help of a foot 25 provided thereon and with the aid of screws 26. Slits can also be provided in the foot 25, which are guided by the screws 26, so that the support 8 can also be moved in the arrow directions K.
  • the air wall 20 also extends over the entire length L of the drum and is covered by the aforementioned covers (not shown) provided on the end faces of the drum except for an opening mentioned below.
  • the channel opening must have an opening cross-section that is not smaller than the cross-sectional area, which is given by the distance A and the drum length L.
  • the channel it is also possible to connect the channel to a vacuum source (not shown) and to dimension it in its cross section such that the channel is essentially at a predetermined vacuum over its entire length.
  • This negative pressure is advantageously adjustable by means of an adjustable throttle (not shown). With such a throttled suction there is an additional possibility of adjusting the dynamic pressure in the converging gap 15.
  • FIG. 4 shows an advantageous embodiment for this purpose, in which a collecting duct 27 is also provided on the air wall 20.
  • This channel is shaped like a gutter and forms a distance E to the foot part 6 of the air baffle 4 with a beak 28.
  • the channel 27 is provided with a suction opening 31 and is also connected to an underpressure source via an adjoining adjustable throttle (not shown), so that the dirt which has separated out in the channel 27 can be suctioned off.
  • the distance E can be adjusted in the sliding directions K by the adjustability of the foot 21 and the support 8.
  • the wall 20 (Fig.3), respectively. the channel 27, not on the drum surface, but forms a safety distance P from it.
  • FIGS. 3 and 4 therefore additionally show sealing elements 29 which have the task of throttling the air conveyed in the clothing of the drum, in the direction of rotation of the drum and passing through the gap P, if this air has too great an influence on the Back pressure in the converging Has room 15.
  • sealing elements can either be in the form of a labyrinth seal, i.e. that the bodies shown have an empty channel space 30 from which the air can flow out at both open ends of the sealing elements.
  • channel spaces 30 are filled with a fine-fiber felt, which is profiled by the card clothing before the actual carding process in such a way that the felt surface facing the clothing is adapted from the clothing to the surface of the clothing.
  • the roughened surface creates a rough, turbulent surface that makes it difficult for the air to flow through.
  • Another variant is that instead of the sealing elements 29 carding bars are attached at the same point, the number of carding bars having to be determined by experiments.
  • Such sealing elements 29 or carding rods can also be used with the arrangement of FIGS. 1 and 2 instead of the wall 20 shown in FIG. 3, a predetermined distance (not shown) between the foot part 6 of the air baffle 4 and the first arranged element 29 or the first arranged carding rod is provided. This distance (not shown) must also be established through trials
  • FIG. 5 shows a further variant in which the air baffle 4 with a channel-shaped additive 40 is provided, which is attached to the wall 20.
  • the channel-shaped additive 40 has a channel opening 42 with the opening width F, which is directed against the drum surface.
  • the converging gap 15 opens into the channel opening 42 at a distance A.
  • the channel-shaped additive 40 is the same length as the air baffle 4 and is closed on one end face and has a connection to a vacuum source on the opposite end face, in which case, as described earlier, between the vacuum source and the channel-shaped additive 40 an adjustable throttle is advantageously provided.
  • carding rods 45 are provided in order to achieve a sealing function on the drum surface, as mentioned earlier.
  • a variably throttled false air opening (not shown) can be provided on the end face of the additive 40, which is closed per se.
  • FIG. 6 shows a further variant in that the air baffle 4 is pivotably arranged on an adjusting mechanism 51 by means of a pivot pin 50.
  • the adjustment mechanism comprises a sliding piston 52 which is slidably mounted in an arm 53 of a support element 54 and in which the pivot pin 50 is rotatably mounted.
  • the displacement piston 52 further has a plate 55 on the opposite end receiving the pivot pin 50, which plate is firmly connected to the displacement piston 52.
  • a compression spring 56 is provided on the displacement piston 52 between the arm 53 and the plate 55.
  • a second arm 57 opposite the first arm 53 and also belonging to the support element 54, serves to receive a threaded spindle 58.
  • the support element 54 is fastened to the machine frame part 9 by means of a column 59.
  • FIG. 7 shows a top view in the viewing direction IV (FIG. 6) of FIG. 6, the pickup drum being omitted for the sake of a better overview and the drum only being indicated by the dashed lines 60.
  • L is the length of the drum 2.
  • a sprocket 60 is fastened to the free end of the threaded spindle 58, which in the arrangement shown in FIG. 7 has two adjustment mechanisms 51 by means of a Chain 61 is connected.
  • the air baffle 4 By turning the spindle 58, the air baffle 4 can be displaced against and away from the drum surface, so that the distance A can be changed. Furthermore, the pivot pin 50 is firmly connected to a bracket 62 fastened to the air baffle 4, so that the angle of attack can be changed by turning the pivot pin.
  • the two adjustment mechanisms 51 are located within the front card covers 63, it is advantageous to adjust the spindles 58 outside the card covers 63.
  • a further sprocket 64 on the sprocket 60 of the left-hand (with a view of FIG. 7) adjustment mechanism 51 and outside of the left-hand card cover 63 is provided with a sprocket (not shown)
  • Rotary mechanism 65 is provided, the sprocket is connected to the sprocket 64 by a chain 66.
  • the rotating mechanism 65 in this case comprises a bearing body 67 which is fixedly connected to a machine frame part and in which a shaft 68 is rotatably mounted, on the one free end of which said chain wheel and on the other free end a handwheel 69 is fastened.
  • a measuring disk 70 is directly connected to the shaft 68 directly adjacent to the bearing body 67.
  • This measuring disk 70 is leaning directly against an end face of the bearing body 67 and has dimension grooves 7l.
  • a dimension groove 72 is also provided on the bearing body 67.
  • pivot pin 50 is connected to a handwheel, so that the pivot pin 50 can also be rotated outside the card cover 63.
  • the pivot pin 50 is rotatably mounted in a bearing body 74, the bearing body 74 being fixedly connected to a machine frame part 9.1.
  • the other end of the pivot pin 50 is rotatably mounted in the card cover 63 on the right-hand side (viewed in FIG. 7).
  • a measuring disk 75 is fixedly arranged on the pivot pin 50, on which measuring grooves 76 are provided.
  • a dimension groove 77 is also applied to the bearing body 74.
  • the opening angle can be adjusted by means of the handwheels 69 and 73.
  • FIGS. 8 and 9 in which elements known per se are provided with the same reference numerals, show that the adjustment mechanism 51 with the guide plate 4 located thereon can also be combined with the elements shown with FIGS. 3 and 4. A further description is therefore omitted and the same reference numerals in FIGS. 8 and 9 as in FIGS. 3 and 4 are used to demonstrate that the same elements are involved in a somewhat adapted form.
  • this space can also be at least temporarily pressurized by suitable compressed air sources; For example, when the card is started to direct the fleece against the customer by means of an air stream in the opposite direction to the direction of rotation of the spool, as long as sufficient back pressure has not yet built up as a result of the spool being too slow, or for temporary cleaning purposes.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP90120848A 1989-12-11 1990-10-31 Appareil pour supporter le passage de la nappe de fibres du cylindre cardeur au cylindre detacheur Withdrawn EP0432430A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH444589 1989-12-11
CH4445/89 1989-12-11

Publications (1)

Publication Number Publication Date
EP0432430A1 true EP0432430A1 (fr) 1991-06-19

Family

ID=4276262

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90120848A Withdrawn EP0432430A1 (fr) 1989-12-11 1990-10-31 Appareil pour supporter le passage de la nappe de fibres du cylindre cardeur au cylindre detacheur

Country Status (3)

Country Link
US (1) US5144723A (fr)
EP (1) EP0432430A1 (fr)
JP (1) JPH0491232A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0790338A2 (fr) 1996-02-15 1997-08-20 Maschinenfabrik Rieter Ag Dispositif de réglage sur une machine de cardage
WO2006012768A1 (fr) * 2004-08-03 2006-02-09 Maschinenfabrik Rieter Ag Dispositif et procede pour une carde

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10139163B4 (de) * 2001-08-09 2014-11-13 Trützschler GmbH & Co Kommanditgesellschaft Vorrichtung an einer Karde, bei der der Garnitur der Trommel gegenüberliegend Abdeckelemente vorhanden sind
DE102005012251B4 (de) * 2005-03-15 2019-05-09 Trützschler GmbH & Co Kommanditgesellschaft Vorrichtung an einer Karde zur Verarbeitung von Textilfasern, z. B. Baumwolle, Chemiefasern u. dgl. mit einer Trommel
ATE446397T1 (de) * 2007-01-18 2009-11-15 Dilo Kg Maschf Oskar Vorrichtung zum geführten transport einer florbahn
CN103757756B (zh) * 2014-01-26 2017-03-15 河北宇腾羊绒制品有限公司 一种具有甩粗功能的羊绒分梳装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE127841C (fr) *
FR535856A (fr) * 1921-05-20 1922-04-22 Perfectionnements aux machines cardeuses
GB921789A (en) * 1960-06-21 1963-03-20 Giddings & Lewis Fraser Ltd Improvements relating to textile carding machines
DE2252081A1 (de) * 1972-10-24 1974-05-02 Hergeth Kg Masch Apparate Krempel zur bearbeitung von fasergut u.dgl

Family Cites Families (11)

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Publication number Priority date Publication date Assignee Title
US363732A (en) * 1887-05-24 Engine
US2327349A (en) * 1939-03-11 1943-08-24 Abington Textile Mach Works Method and means for stripping carding apparatus
US2788547A (en) * 1952-06-11 1957-04-16 Stearns & Foster Company Carding machine
US2987779A (en) * 1957-02-05 1961-06-13 Kawashima Kanichi Doffing process and apparatus for the card by action of air
US3302248A (en) * 1964-06-18 1967-02-07 Hollingsworth John D Deflector for carding screens
US3283366A (en) * 1965-08-02 1966-11-08 Johnson & Johnson Apparatus for removing a fibrous web from a rotatable surface
GB1476318A (en) * 1973-07-31 1977-06-10 English Card Clothing Textile carding
US4257148A (en) * 1977-08-15 1981-03-24 John D. Hollingsworth On Wheels, Inc. Fiber transfer method
DE2830367C2 (de) * 1978-07-11 1985-03-28 Hergeth KG Maschinenfabrik und Apparatebau, 4408 Dülmen Verfahren und Vorrichtung zum Herstellen eines Wirrfaservlieses aus Spinngut, z.B. Wolle, Baumwolle, Chemiefasern u.dgl., mittels eines Krempelvorganges
US4332058A (en) * 1980-04-28 1982-06-01 John D. Hollingsworth On Wheels, Inc. Web doffing apparatus
US4831691A (en) * 1987-10-09 1989-05-23 John D. Hollingsworth On Wheels, Inc. Compact carding apparatus with sliver thread-up and method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE127841C (fr) *
FR535856A (fr) * 1921-05-20 1922-04-22 Perfectionnements aux machines cardeuses
GB921789A (en) * 1960-06-21 1963-03-20 Giddings & Lewis Fraser Ltd Improvements relating to textile carding machines
DE2252081A1 (de) * 1972-10-24 1974-05-02 Hergeth Kg Masch Apparate Krempel zur bearbeitung von fasergut u.dgl

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0790338A2 (fr) 1996-02-15 1997-08-20 Maschinenfabrik Rieter Ag Dispositif de réglage sur une machine de cardage
WO2006012768A1 (fr) * 2004-08-03 2006-02-09 Maschinenfabrik Rieter Ag Dispositif et procede pour une carde

Also Published As

Publication number Publication date
JPH0491232A (ja) 1992-03-24
US5144723A (en) 1992-09-08

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