EP1339901A1 - Dispositif permettant de tendre une garniture de carde - Google Patents

Dispositif permettant de tendre une garniture de carde

Info

Publication number
EP1339901A1
EP1339901A1 EP01999692A EP01999692A EP1339901A1 EP 1339901 A1 EP1339901 A1 EP 1339901A1 EP 01999692 A EP01999692 A EP 01999692A EP 01999692 A EP01999692 A EP 01999692A EP 1339901 A1 EP1339901 A1 EP 1339901A1
Authority
EP
European Patent Office
Prior art keywords
braking
brake
roller
braking force
carding
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
EP01999692A
Other languages
German (de)
English (en)
Other versions
EP1339901B1 (fr
Inventor
Bernhard Bocht
Axel Bauersachs
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.)
tr?tschler Card Clothing GmbH
Original Assignee
Hollingsworth GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hollingsworth GmbH filed Critical Hollingsworth GmbH
Publication of EP1339901A1 publication Critical patent/EP1339901A1/fr
Application granted granted Critical
Publication of EP1339901B1 publication Critical patent/EP1339901B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • D01G15/84—Card clothing; Manufacture thereof not otherwise provided for
    • D01G15/92—Attaching card clothing to carding elements

Definitions

  • the present invention relates to a device for pulling a carding set onto a roller, with a roller drive unit and a braking device acting on the carding set for generating a winding tension in the area of the carding set between the roll and the braking device.
  • Garnished carding rolls are produced by winding a type of saw tooth wire onto a roll base.
  • the sawtooth wire lies flat on a supply spool.
  • the device pulls off the carding set from this supply spool.
  • the sawtooth wire is fastened with its free end region to an outer circumferential piece of the basic roller body and is guided through a braking device at a distance from the basic roller body.
  • the roller body is driven by a regulated drive motor.
  • the braking device consists of brake shoes pressing on the sawtooth wire with spring pressure on the side, so that there is always a certain pre-tension between the braking device and the roller base in the carding unit during the winding process. This device has also been used by the applicant for years and has proven itself very well. Nevertheless, efforts are still being made to improve this.
  • the braking device comprises at least one brake roller which presses on and rotates on the outside of the carding set and a braking force device which generates the braking force, the braking force device braking the carding set indirectly via the brake roller.
  • a braking device with at least one pressing-on and moving brake roller and a braking force device has now been provided.
  • the braking force is no longer generated by sliding friction directly on the carding set, but by braking by means of the interposition of the brake roller, so that static friction conditions exist on the pressing circumference of the brake roller and on the carding set in engagement with it.
  • How and at what point the indirect braking via the braking force device is irrelevant provided that there is no sliding friction between the brake roller and card set.
  • the carding set is in any case wound onto a basic roller body with the desired pretension without damage.
  • Such static friction conditions between carding set and brake roller are also easier to control and determine than sliding friction states, which is why an improved control or regulation of the winding conditions could also take place.
  • a pair of brake rollers can be provided, through which the carding set can be passed and through which a braking effect can be brought about together.
  • the braking effect can also be very strongly influenced by the choice of material for the brake rollers.
  • only one brake roller is braked by the braking force device, whereas the other brake roller serves as a moving abutment.
  • the pressing force can additionally be adjustable or controllable.
  • at least one brake roller is provided with a profiling as a guide roller, the profiling being adapted to a section of the outer contour of the carding assembly being drawn up.
  • the use of wire-shaped sets means that the cross-section of the carding set remains essentially constant over the entire length of the wire, which is why a corresponding profiling of the brake roller is available for precise positioning.
  • At least one brake roller has a circumferential groove in which the foot area of the card clothing is guided in a substantially precise manner. This not only results in guidance in the horizontal direction, but also in the vertical direction, since the foot area cannot escape from the circumferential groove (ring groove).
  • the widened foot area of the carding sets can have all common cross-sectional shapes.
  • the brake roller can preferably have a mounted shaft on which the braking force device acts.
  • the shaft is then usually firmly connected to the brake roller.
  • the braking force device can in turn achieve a braking force effect via sliding friction. This sliding friction takes place away from the carding set, so that it has no influence on it and the indirect braking mentioned takes place. If there are signs of wear between the shaft and this braking force device, the braking force device can be designed to be exchangeable without problems.
  • the braking force device can comprise brake shoes acting on the shaft. All common brake shoe designs that can act directly or indirectly on the shaft could be used here. In order to be able to better control the braking effect, this can comprise an adjusting unit for adjusting the braking effect.
  • the braking device comprises a control and / or regulating unit, by means of which the braking action can be automatically adapted to the winding tension. This ensures that the entire carding set is wound up with a predetermined pretension. As a rule, this is the same over the entire winding process. However, different controls via the winding process are also possible.
  • the roller drive unit is integrated in the control and / or regulating circuit of the control and / or regulating unit and the roller drive unit can be controlled or regulated for automatic adaptation to the predetermined winding pretension.
  • the roller drive as well as the braking effect and also the preload achieved in this way can be precisely coordinated with one another, so that the desired preload and thus an optimal winding of the carding set on the roller base body always take place.
  • the braking device comprises a brake motor or an eddy current brake or torque brake, which then applies the braking action without sliding friction between the brake rollers and the carding set.
  • a braking force sensor is provided which is included in the braking device and which, e.g. can continuously record and document the braking force electronically. This provides a quality control for the mounting of the carding set.
  • the braking device can comprise a recording unit for recording the braking force and / or the winding speed. In this way, several parameters can be recorded and monitored in parallel with each other.
  • the braking device can also include a speed sensor. This can also be used for real-time recording, for example, in which, for example, the braking force and winding speed are monitored in parallel.
  • At least two brake rollers can also be arranged in series. These then press one after the other onto the carding set, so that better brake metering is possible.
  • the brake rollers arranged in series can also be grouped symmetrically, so that several pairs of brake rollers are arranged in series.
  • an offset arrangement would also be conceivable.
  • a brake band is guided over the brake rollers arranged in series and is pressed onto an outside of the carding set.
  • the brake belt then runs around the brake rollers in the manner of a conveyor belt and is pressed by them against the carding set. This results in a more uniform transmission of braking force over the entire length of the side of the brake band that lies against the carding set.
  • the brake band can consist of a wide variety of materials. Circulating chains with corresponding brake pads could also be used here, so that the brake rollers would then be shaped like a chain wheel.
  • the paired arrangement for applying force to the carding set on both sides is also possible here.
  • Fig. 1 is a schematic representation of a winding device in a side view
  • Fig. 2 is a schematic representation of a braking device along the line II-II in Fig. 1 cut.
  • the winding device 1 shown in FIG. 1 essentially comprises a holding station 2 for a supply reel 3, on which a sawtooth-shaped card clothing 4 is wound flat, a braking device 5 and a roller 6.
  • the roller 6 is driven by a motor 7 and a transmission device 8 in Driven clockwise.
  • the motor 7 has a control and regulating device 9 through which the speed of the roller 6 and the direction of rotation can be controlled.
  • the braking device 5 comprises a control and regulating device 10, which is for a specific braking effect provides.
  • the control and regulating device 9 and the control and regulating device 10 are operatively connected to one another. In a further embodiment, these can also be used as a unit for controlling both the braking device 5 and the motor 7.
  • the sawtooth wire-shaped card clothing 4 is unwound from the supply spool 3 arranged on a bearing block 11, then passed through the braking device 5 and wound onto the outer circumference of the roller 6.
  • the carding set 4 then runs helically on the outer circumference of the roller 6 after the winding process.
  • the braking device 5 is shown only schematically in FIG. 1 as a box. 2, this is explained in greater detail.
  • the braking device 5 is intended to apply a preload to the motor 7 in the area 12 of the carding set 4. This pretension ensures that the carding set 4 is wound up evenly and permanently.
  • the carding set 4 comprises a narrower upper tooth region 13 and a wider, essentially rectangular lower foot region 14 in cross section. This creates a shoulder 15 between the tooth region 13 and the foot region 14.
  • the braking device 5 comprises a pair of brake rollers with a left, cylindrical brake roller 16 and a right, essentially cylindrical brake roller 18 provided with an annular groove 17.
  • the annular groove has a rectangular shape in cross section and is molded in width to the height of the foot region 14. As a result, part of the foot region 14 is guided in the annular groove 17 in a substantially precise fit.
  • the bottom of the annular groove 17 presses against the right side surface 19 of the carding unit 4.
  • the left side surface 20 of the carding unit 4 lies against the cylindrical surface of the brake roller 16.
  • the carding set 4 is therefore passed in a gap 21 between the two brake rollers 16 and 18.
  • the upper side wall 22 of the annular groove 17 guides the shoulder 15, while the lower side wall 23 of the annular groove 17 engages under the underside 24 of the foot region 14.
  • the carding set 4 is therefore guided in both the horizontal and vertical directions between the brake rollers 16 and 18.
  • the brake roller 16 is arranged coaxially on a shaft 25 and the brake roller 18 is mounted coaxially on a shaft 26. Both shafts are each rotatably supported, so that the brake rollers 16 and 18, together with their shafts 25 and 26, are also arranged to be rotatable about the axes A and B.
  • a braking force device 27 acts on the shaft 25 and a braking force device 28 acts on the shaft 26.
  • Both braking force devices 27 and 28 are only shown schematically and are to be understood as an example of a braking effect which serves for the indirect braking of the carding set 4.
  • the braking force devices 27 described by way of example each comprise brake shoes 30 pressed onto the outer jacket of the shafts 25 and 26 by means of adjustable springs 29. Both the shafts 25 and 26 and the braking force devices 27 and 28 can be designed to be interchangeable, for example for wear.
  • the braking force applied by the braking force devices 27 and 28 can be controlled or regulated via the control and regulating device 10, so that a targeted braking effect can be achieved.
  • What is important in this construction of the brake device 5 is the fact that there is as little as possible sliding friction between the carding set 4 and the brake rollers 16 and 18. Due to the same speed on the circumference of the brake rollers 16 and 18 and on the right and left side surfaces 19 and 20 of the carding set 4, it can be said that the braking device 5 has an influence of static friction.
  • the braking force devices 27 and 28 therefore indirectly brake the carding set 4.
  • the surface of the brake rollers 16 and 18 can also have a defined roughness up to the knurling, in order to prevent the card clothing 4 from slipping due to the pretension. Furthermore, it is very simple to provide the braking device 5 with sensors which, for example, count the running meters, record the speed during the winding and ultimately also continuously record the braking force for a braking motor and, if appropriate, incorporate this information into the control loop. There is also the possibility of logging the winding process and this data process (e.g. save, print, etc.). In particular, the winding tension or a possible delay could be recorded. The devices required for this can be provided as an additional extension or as accessories or as an integral unit.
  • the mounting device 1 described is particularly suitable for a mounting process for all-steel fittings.
  • a wide variety of shapes can also be used, which also lead to a concatenation of the adjacent turns of the carding set.
  • it can be designed as a tongue and groove (e.g. triangular).
  • the control circuit can be simplified by using brake motors or eddy current brakes or torque brakes.
  • a braking force sensor can continuously record the braking force and document it for quality control.
  • a winding speed can also be recorded in parallel by means of a second sensor. Real recording is also possible in this way.
  • a plurality of brake rollers can also be arranged in series on one side of the carding set. This means that several brake rollers press against one side of the card set.
  • This row of brake rollers can in turn be assigned a row of brake rollers on the opposite side of the carding set. These can be arranged at the same height, so that pairs of brake rollers are arranged in series one behind the other. An offset arrangement is also possible.
  • a circumferential brake band can also be guided over these brake rollers arranged in a row, so that this brake band is pressed against the card set.
  • the design of the brake band as a chain with a corresponding pressure coating is also possible, so that the brake rollers would then be designed like a chain wheel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Credit Cards Or The Like (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Braking Arrangements (AREA)

Abstract

Dispositif permettant de tendre une garniture de carde sur un cylindre, qui comporte une unité d'entraînement de cylindre et un dispositif de freinage agissant sur la garniture de carde pour produire une prétension d'enroulement dans la zone de la garniture de carde située entre le cylindre et le dispositif de freinage. Selon la présente invention, le dispositif de freinage comporte au moins un cylindre de freinage rotatif appuyant sur une face externe de la garniture de carde et un dispositif de production de force de freinage, ce dispositif de production de force de freinage freinant la garniture de carde de manière indirecte par l'intermédiaire du cylindre de freinage. Le dispositif selon la présente invention permet d'améliorer le processus permettant de tendre la garniture de carde.
EP01999692A 2000-12-08 2001-12-07 Dispositif permettant de tendre une garniture de carde Expired - Lifetime EP1339901B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10061286A DE10061286C1 (de) 2000-12-08 2000-12-08 Vorrichtung zum Aufziehen einer Kardiergarnitur
DE10061286 2000-12-08
PCT/EP2001/014410 WO2002046505A1 (fr) 2000-12-08 2001-12-07 Dispositif permettant de tendre une garniture de carde

Publications (2)

Publication Number Publication Date
EP1339901A1 true EP1339901A1 (fr) 2003-09-03
EP1339901B1 EP1339901B1 (fr) 2006-10-11

Family

ID=7666417

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01999692A Expired - Lifetime EP1339901B1 (fr) 2000-12-08 2001-12-07 Dispositif permettant de tendre une garniture de carde

Country Status (7)

Country Link
US (1) US20040056137A1 (fr)
EP (1) EP1339901B1 (fr)
CN (1) CN1296536C (fr)
AT (1) ATE342387T1 (fr)
DE (2) DE10061286C1 (fr)
ES (1) ES2273925T3 (fr)
WO (1) WO2002046505A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202009014906U1 (de) 2009-12-22 2010-05-12 Groz-Beckert Kg Rollenbremse für eine Aufziehvorrichtung

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10249001A1 (de) * 2002-10-21 2004-04-29 Hollingsworth Gmbh Vorrichtung zum Aufziehen einer Kardiergarnitur mit Kraftmesseinrichtung
DE102004004433A1 (de) * 2004-01-28 2005-08-18 Trützschler GmbH & Co KG Vorrichtung an einer Spinnereimaschine, insbesondere Karde, Reiniger o. dgl., zum Aufziehen einer Garnitur auf eine Walze
DE102004055310A1 (de) * 2004-11-16 2006-05-18 Trützschler GmbH & Co KG Vorrichtung an einer Spinnereimaschine, insbesondere Karde, Krempel, Reiniger o. dgl. zum Aufziehen einer Garnitur auf eine Walze
EP2336406B1 (fr) * 2009-12-16 2015-02-18 Groz-Beckert KG Dispositif de montage pour garnitures de carde en acier
ES2393235T3 (es) * 2009-12-16 2012-12-19 Groz-Beckert Kg Dispositivo de montaje para la fabricación de un revestimiento de todo acero
CN105780209A (zh) * 2016-03-27 2016-07-20 无锡南理工科技发展有限公司 一种编织主罗拉针布的方法
CN105780210A (zh) * 2016-03-27 2016-07-20 无锡南理工科技发展有限公司 用于编织主罗拉针布的装置
CN111910301B (zh) * 2020-08-06 2021-06-11 江苏悦达棉纺有限公司 金属针布包卷压臂

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Publication number Priority date Publication date Assignee Title
DE202009014906U1 (de) 2009-12-22 2010-05-12 Groz-Beckert Kg Rollenbremse für eine Aufziehvorrichtung

Also Published As

Publication number Publication date
DE10061286C1 (de) 2002-04-04
WO2002046505A1 (fr) 2002-06-13
CN1296536C (zh) 2007-01-24
CN1479814A (zh) 2004-03-03
DE50111225D1 (de) 2006-11-23
EP1339901B1 (fr) 2006-10-11
ES2273925T3 (es) 2007-05-16
US20040056137A1 (en) 2004-03-25
ATE342387T1 (de) 2006-11-15

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