EP2304085A1 - Dispositif de guidage de manchon pour un cylindre supérieur d'un train d'étirage - Google Patents

Dispositif de guidage de manchon pour un cylindre supérieur d'un train d'étirage

Info

Publication number
EP2304085A1
EP2304085A1 EP08802346A EP08802346A EP2304085A1 EP 2304085 A1 EP2304085 A1 EP 2304085A1 EP 08802346 A EP08802346 A EP 08802346A EP 08802346 A EP08802346 A EP 08802346A EP 2304085 A1 EP2304085 A1 EP 2304085A1
Authority
EP
European Patent Office
Prior art keywords
riemchenführungseinrichtung
guide
drafting
strap
top roller
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP08802346A
Other languages
German (de)
English (en)
Other versions
EP2304085B1 (fr
Inventor
Norbert Brunk
Wolfgang Lehner
Michael Smith
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 EP2304085A1 publication Critical patent/EP2304085A1/fr
Application granted granted Critical
Publication of EP2304085B1 publication Critical patent/EP2304085B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/70—Constructional features of drafting elements
    • D01H5/86—Aprons; Apron supports; Apron tensioning arrangements
    • 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
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/26—Drafting machines or arrangements without fallers or like pinned bars in which fibres are controlled by one or more endless aprons
    • 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
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/70—Constructional features of drafting elements
    • D01H5/86—Aprons; Apron supports; Apron tensioning arrangements
    • D01H5/88—Cradles; Tensors

Definitions

  • the invention relates to a Riemchen operations adopted for guiding a drafting a top roller with an elastic cover looping around the belt, the Riemchen Entrys acquired includes a receptacle for the drafting top roller and guide surfaces for the strap.
  • the invention has for its object to improve the Riemchen enclosures worn.
  • the Riemchen Installations shark comprises a main body and a main body attached to the guide member, wherein the base body contains the receptacle for the drafting top roller and wherein the guide member includes at least one guide surface for the strap.
  • the two-part embodiment of the apron guiding device separates the two most important functions to be achieved by the apron guiding device, namely the guiding of the apron and the fastening of the apron guiding device to the axis of the drafting system upper roller.
  • the function of attaching and holding the Riemchen Operationss worn is taken from the body, which contains the receptacle for the axis of the drafting top roller.
  • the main body can be made for example of a glass fiber or carbon fiber reinforced plastic. Such a plastic ensures high stability of the body and prevents excessive deformation under the external loading forces.
  • the guide surfaces for the strapping are arranged on a guide component separate from the main body.
  • the guide component can be fastened to the base body and can be designed such that it is only subjected to very little load by operating forces.
  • a particularly slippery plastic which need not contain reinforcement by glass or carbon fibers.
  • Gleitfreudiger plastic is particularly suitable a plastic which consists at least in part of polytetrafluoroethylene.
  • the wear of the strap can be reduced thereby and the service life of the strap increases.
  • the friction losses which require an increased drive torque of the drafting system sub-roller, can be minimized.
  • the wear preferably occurs on the guide component, which can optionally be easily and inexpensively replaced.
  • the guide member from a wear-resistant material such as ceramic or steel, which is polished on the guide surfaces for the strap.
  • Drawframe top rollers in drafting systems for warping staple fiber bundles are often designed as top roller twins.
  • An upper roller twin comprises two drafting rollers, each with an elastic reference, which are freely rotatably mounted on a fixed axle. The axle is received in its central region by a load carrier of the drafting system.
  • an upper roller twin can also be designed as a so-called fixed roller, in which the two drafting top rollers are rotatably connected to an axle, wherein for supporting the axle, a sleeve is provided which surrounds the axis of the fixed roller and which is then accommodated on the load carrier.
  • the receptacle of the main body of the Riemchen Operations worn is of course designed so that the recording on the axis of the drafting top roller surrounding sleeve can be placed.
  • the Riemchen Entrys worn includes two fixed to the main body guide components for the adjacent drafting crown upper rollers.
  • the two guide components at different distances from one another on the base body can be fastened, wherein the guide components can be displaceable parallel to the axial direction of the drafting top roller and positioning means may be provided for the guide member, which allow attachment of the guide member on the body only at predetermined intervals.
  • This embodiment has the advantage that the Riemchen Replacements worn for Oberwalzenzwillinge with different pitch, ie Oberwalzenzwillinge with different distances far apart elastic covers of the two drafting crown upper rollers, is used. For Oberwalzenzwillinge different division only a single body is necessary.
  • the division of the corresponding position of the guide surfaces for the strapping is made possible by the fact that the guide member is fixed in the corresponding position on the base body.
  • Both guide components with the guide surfaces for the strap are preferably configured identically that each can be used for guiding on both straps of Oberwalzenzwillings. The variety of parts can be greatly reduced.
  • the Riemchenschreib is preferably generated only by the fact that the straps strives to assume approximately circular shape in the circumferential direction.
  • the strap guiding device contains a tensioning element that is spring-loaded.
  • the clamping element can be arranged both on the main body and on the guide member and can be formed for example by an additional plastic bottle. It can also be provided that the clamping element are formed by a spring-loaded guide surface of the guide component. For example, the tread alone or the entire guide element can be sprung with tread.
  • the Riemchen exchanges worn may include an obliquely arranged to the Riemchenlaufraum scraper edge.
  • the wiper edge is used to clean the strap of any adhering fibers.
  • the wiper edge may be designed to lightly touch the strap or to be non-contact at a minimum distance from the strap.
  • FIG. 1 shows a front view of an upper roller twin with a belt guiding device according to the invention
  • FIG. 2 shows a side view cut along the sectional surface H-II of FIG.
  • a drafting 1 for warping a staple fiber strand 2 is shown schematically.
  • the drafting system 1 consists - as can be seen in Figure 2 - of a plurality of roller pairs 3, 4 and 5, 6, which transport the staple fiber strand 2 in the transport direction A and forgiven to the desired fineness.
  • the lower rollers 3 and 5 are driven.
  • the upper rollers 4 and 6 are held in a load carrier 7 and are pressed against the lower rollers 3 and 5.
  • the pair of rollers 3, 4 are in a conventional manner attackssriemchen 8 and 9 for guiding the staple fiber strand in the drafting zone between the nip 10 of the pair of rollers 3, 4 and the nip 1 1 of the pair of rollers 5, 6 are arranged.
  • the top roller 6 is provided with an elastic cover 12 made of a rubber-like material. To protect the elastic cover 12 against excessive wear by the staple fiber strand 2 of the top roller 6 is associated with a strap 13 which wraps around the elastic cover 12. To guide the strap 13 a Riemchen arrangements worn 14 is provided.
  • the Riemchen Operations prepared 14 includes a receptacle 15 for the axis 16 of the drafting top roller 6 and a tread 17 for the strap 13.
  • the Riemchen Operationss prepared 14 is disposed on the output top roller 6 of the drafting 1, so that the strap 13 forms the nip line 1 1, at the the delay of the fiber structure 2 is completed.
  • the wear of the upper roller 6 is particularly strong, since there the Circumferential speed of the rollers 5, 6 is highest.
  • drafting units 1 are arranged side by side, as is the case for example with drafting units 1 for ring spinning machines.
  • the lower rollers 3 and 5 designed as a machine longitudinal direction continuous sub-cylinder, as shown in Figure 1 can be seen.
  • the two drafting top rollers 6 of the adjacent drafting units 1 are arranged freely rotatably on a common axis 16.
  • the axle 16 is fixedly received in a holder 18 which is fixed to the load carrier 17 and through which the drafting top rollers 6 are pressed against the lower roller 5.
  • the two top rollers 6 and the axle 16 form a so-called top roller twin.
  • the elastic covers 12 of the two upper rollers 6 of the Oberwalzenzwillings 19 are each wrapped by a strap 13.
  • the receptacle 15 surrounds the holder 18 fork-shaped and is clipped onto the axis 16.
  • the Riemchen Installations worn 14 is designed in two parts and a base body 20 and a guide member 21 for each strap 13 contains.
  • the main body contains the receptacle 15 for the axis 16 of the Oberwalzenzwillings 19 and is made of a stable material that can absorb the loading forces occurring during operation.
  • the main body 20 is preferably made of a fiber-reinforced plastic.
  • the guide member 21 includes the tread 17 and two side guides 22, all of which together are referred to as guide surfaces for the strap 13.
  • the guide member consists of a sliding plastic, so that the strap 13 on the guide surfaces 17 and 22 finds little resistance.
  • Each guide member 21 is attached via receptacles 23 and 24 on the main body 20.
  • the guide component 21 can be pushed onto the base body 20 parallel to the axial direction of the drafting unit upper roller 6.
  • positioning means 25 in the form of a pin 26 on the guide member 21 and a plurality of grooves 27 on the base body 20 to ensure positioning of the two guide members 21 at predetermined distances from one another.
  • Oberwalzenzwillinge 19 different division B are used.
  • the pitch B corresponds to the distance of the distorted in adjacent drafting 1 staple fiber assemblies 2.
  • the covers 12 of the Oberwalzenzwillings 19 also have a pitch corresponding to the pitch.
  • the side guides 22 of the Riemchen operations worn 14 must be coordinated with the division of Oberwalzenzwillings 19 so that the straps 13 run exactly on the covers 12. Due to the adjustability of the guide members 21 and the positioning means 25, the Riemchen Entrys worn 14 invention Oberwalzenzwillingen 19 different pitch B are used without a large adjustment effort is necessary.
  • the number and the position of the grooves 27 in the base body 20 is matched to the divisions used in practice B of Oberwalzenzwillinge 19.
  • the replacement of a single strap 13 can be simplified.
  • the guide member 21 can be pushed down with the strap 13 in the axial direction of the top rollers 6 from the base body 20.
  • the strap does not need to be pulled over the side guide 22. It is thus possible to provide relatively high side guides 22, which still ensure a good guidance of the strap 13, when the elastic cover 12 must be reground and thereby reduces its diameter.
  • the increased side guides 22 ensure a safe Riemchen Installation even with reduced diameter of the drafting top roller 6 without an additional clamping element must be present.
  • a wiping edge 28 for cleaning the apron 13.
  • the wiping edge 28 is arranged on the inside of the strap 13 obliquely to Riemchenlaufraum C.
  • the wiper edge 28 preferably touches the strap 13 very easily. Due to the inclination of the wiping edge in relation to the Riemchenlaufraum C is possibly stripped on the inside of the strap 13 adhering dirt and conveyed out laterally.
  • the strap 13, which wraps around the elastic cover 12 of the drafting top roller 6, can be designed differently.
  • the strap 13 may, for example, be designed like a guide strap 8 and have at least on its outer surface a layer of a rubber-like material.
  • the strap 13 may also be designed as a so-called Siebriemchen, which consists of an air-permeable fabric. Such Siebriemchen are usually used in the drafting 1 downstream compression equipment for compacting the finished warped staple fiber.
  • the scope of the Strap 13 is preferably selected according to the staple length of the fibers present in staple fiber strand 2 and should preferably be greater than the staple length. Such a sized circumference of the strap 13 effectively prevents the formation of unwanted coils on the strap 13, even if the diameter of the drafting top roller 6 is chosen to be relatively small.
  • a straight line laid through the center of the axis 16 and the center of the running surface 17 has an angle of approximately 90 ° to the stretching field plane.
  • the drafting system 1 is usually angeorndnet in the ring spinning machine so that the stretching field plane is not horizontal.
  • the stretching field plane can, for example, extend at an angle of 45 ° to the floor. It may be advantageous that the angle between the stretching field plane and the straight line defined by the center of the axis 16 and the center of the running surface 17 corresponds approximately to the angle between the stretching field plane and the floor.
  • the Riemchen extractions worn 14 is approximately horizontal.
  • the angle between the stretching field plane and the straight line passing through the center of the axis 16 and the center of the running surface 17 may preferably be about 45 °.

Landscapes

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

Abstract

L'invention concerne un dispositif de guidage de manchon (14) pour un cylindre supérieur d'un train d'étirage (6). Le dispositif de guidage de montage sert à guider un manchon (13) qui s'enroule autour du cylindre supérieur de train d'étirage et du revêtement élastique (12) dudit cylindre. Le dispositif de guidage de manchon comprend un logement pour le cylindre supérieur de train d'étirage, et des surfaces de guidage pour le manchon. Le dispositif de guidage de manchon présente un corps de base (20), et un élément de guidage (21) fixé au corps de base. Le corps de base comprend le logement pour l'axe du cylindre supérieur de train d'étirage, et l'élément de guidage comprend au moins une surface de guidage (17, 22) pour le manchon. Il peut être prévu deux éléments de guidage, à fixer sur le corps de base, pour des cylindres supérieurs voisins d'un cylindre supérieur jumelé de train d'étirage, lesdits cylindres pouvant être fixés à différentes distances mutuelles sur le corps de base.
EP08802346A 2008-02-18 2008-09-18 Dispositif de guidage de manchon pour un cylindre supérieur d'un train d'étirage Not-in-force EP2304085B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008010364A DE102008010364A1 (de) 2008-02-18 2008-02-18 Riemchenführungseinrichtung für eine Streckwerksoberwalze
PCT/EP2008/007825 WO2009103318A1 (fr) 2008-02-18 2008-09-18 Dispositif de guidage de manchon pour un cylindre supérieur d'un train d'étirage

Publications (2)

Publication Number Publication Date
EP2304085A1 true EP2304085A1 (fr) 2011-04-06
EP2304085B1 EP2304085B1 (fr) 2012-05-30

Family

ID=40149773

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08802346A Not-in-force EP2304085B1 (fr) 2008-02-18 2008-09-18 Dispositif de guidage de manchon pour un cylindre supérieur d'un train d'étirage

Country Status (6)

Country Link
EP (1) EP2304085B1 (fr)
CN (1) CN101952494A (fr)
BR (1) BRPI0822295A2 (fr)
DE (1) DE102008010364A1 (fr)
TR (1) TR201006816T1 (fr)
WO (1) WO2009103318A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU503225B1 (de) * 2022-12-20 2024-06-20 Saurer Spinning Solutions Gmbh & Co Kg Vorrichtung zum Positionieren einer Walze oder für das Spannen eines Riemens, Streckvorrichtung, Spinneinheit und Spinnmaschine umfassend eine solche Vorrichtung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB531114A (en) * 1939-07-12 1940-12-30 John Schofield Improvements in mechanism for drawing fibres in textile machines
SU701181A1 (ru) * 1977-11-21 1981-09-07 Ташкентское Специальное Конструкторское Бюро Текстильных Машин Верхн клеточка двухремешкового выт жного прибора текстильной машины
DE10348452B4 (de) 2003-10-17 2008-07-03 Deutsche Institute für Textil- und Faserforschung Stuttgart Streckwerk mit von Riemchen umschlungenen Zwillings-Ausgangsoberwalzen
ES1060770Y (es) * 2005-08-03 2006-02-16 Pinter Sa Tensor para bolsas de condensacion.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2009103318A1 *

Also Published As

Publication number Publication date
TR201006816T1 (tr) 2010-12-21
EP2304085B1 (fr) 2012-05-30
DE102008010364A1 (de) 2009-08-20
CN101952494A (zh) 2011-01-19
BRPI0822295A2 (pt) 2019-09-24
WO2009103318A1 (fr) 2009-08-27

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