WO2020074149A1 - Carder having a device for setting the carding gap between stationary elements and a drum - Google Patents
Carder having a device for setting the carding gap between stationary elements and a drum Download PDFInfo
- Publication number
- WO2020074149A1 WO2020074149A1 PCT/EP2019/070770 EP2019070770W WO2020074149A1 WO 2020074149 A1 WO2020074149 A1 WO 2020074149A1 EP 2019070770 W EP2019070770 W EP 2019070770W WO 2020074149 A1 WO2020074149 A1 WO 2020074149A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- elements
- drum
- slide bar
- carding
- extension
- Prior art date
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
- D01G15/02—Carding machines
- D01G15/12—Details
- D01G15/28—Supporting arrangements for carding elements; Arrangements for adjusting relative positions of carding elements
-
- 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
- D01G15/14—Constructional features of carding elements, e.g. for facilitating attachment of card clothing
- D01G15/24—Flats or like members
Definitions
- the present invention relates to a card with a device for adjusting the gap between fixedly arranged carding elements, suction hoods or separating knives and a drum, the fixedly arranged carding elements, suction hoods or separating knives interacting with at least one arcuate slide bar, which acts on both sides of the drum by means of an extension arch Side shield are arranged, each slide bar is wedge-shaped and slidably arranged on a mutually aligned wedge-shaped surface of the extension sheet, the slide bar on the extension sheet is adjustable and fixable by means of an adjusting device.
- carding elements of the current design are used with fixed carding elements, suction elements and reject knives, with which fiber flakes are broken up and dirt or foreign parts are removed.
- these fixed elements are at a defined distance from the card drum, which usually cannot be changed during operation.
- these fixed elements are individually adjusted and fixed at a distance from the drum using adjusting elements.
- a simultaneous adjustment of all fixed elements is not practiced according to the current state of the art. Since the gaps between these fixed elements and the drum must be between 1/10 to 2/10 mm and the components of the card due to thermal Load change, a defined gap is set in the cold state, which will shrink during operation. However, a collision between these fixed elements and the drum is possible.
- DE 10 2005 052 142 A1 describes an extension bow that is adjustable in radius to the drum. The radius of the
- the extension arch can be set at a distance from the drum by means of an adjusting spindle, so that the fixed elements arranged thereon also change their distance from the drum.
- DE 198 31 139 B4 describes an extension bend whose outer radius can be changed in the form of two wedge strips that can be moved in opposite directions. Fixed carding elements are arranged on this extension sheet, and their distance from the drum changes with the displacement of the wedge strips. The fixed carding elements are fastened using a tensioning strap that is fastened to the back of all associated fixed carding elements. Here, too, each fixed element must be fixed separately.
- the object of the invention is the development of an adjusting device for fixed elements of a card, with which they can be adjusted exactly at a distance from the drum.
- the card has a device for adjusting the gap between stationary carding elements, suction hoods or knives and a drum the stationary carding elements, suction hoods or
- Elimination knives interact with at least one arc-shaped slide bar, which are arranged on both sides of the drum on a side plate by means of an extension sheet, each slide bar being wedge-shaped and slidably arranged on an oppositely aligned wedge-shaped surface of the extension sheet, the slide bar being adjustable on the extension sheet by means of an adjusting device and is fixable.
- the invention includes the technical teaching that the carding elements, suction hoods or knives are arranged with a prestress on the slide bar and can be adjusted against the prestress at a distance from the drum. With the pre-tension, the elements are held on the slide bar with sufficient force, but can still be adjusted in the carding gap when the slide bar is moved without a fastening element having to be loosened.
- the preload is dimensioned so that even larger fiber chunks in the pre-carding zone do not allow the elements to lift off the slide bar. With the invention, a complete automatic setting of the carding gaps in the pre, main and postcarding zone is possible.
- the carding elements, suction hoods or knives are connected to the extension elbow by means of at least one fastening element.
- the attachment of the elements to the extension arch ensures their fixed arrangement to the drum, the slide bar being arranged between the elements and the extension arch in an adjustable manner. This ensures that the elements can only be set at a distance from the drum.
- the fact that the at least one fastening element engages around or through the slide bar ensures that the slide bar can be moved.
- the prestress is preferably generated by spring elements or hydraulic or pneumatic elements.
- the size of the preload is adjustable and can be adapted to the operating conditions.
- the spring elements or the hydraulic or pneumatic elements for generating the pretension can be designed in such a way that the pretensioning force is reduced or eliminated during the displacement of the slide bar in order to reduce the friction that occurs between the elements and the slide bar.
- the spring force can be reduced or canceled by means of a pneumatic element. With the hydraulic or pneumatic elements, the pressure for generating the preload can be reduced.
- the slide bar has at least one recess or an elongated hole through which the at least one fastening element engages.
- a cylindrical body such as a bolt or a screw is used as a fastening element, which corresponds to the recess or the elongated hole.
- the at least one fastening element can be designed as a screw, clamp or sliding block that passes through or engages around the slide bar.
- spacer elements By using spacer elements, a different distance can be set between the carding elements, extraction hoods or knives and the drum after the basic setting. So the distance between the
- Carding elements and the drum can be set to 1/10 mm, for example, but the distance between the separating knife and the drum to 2/10 mm.
- the slide bar is actuated, all distances are increased or decreased in the same value, the different presetting being retained.
- the adjusting device can preferably be operated manually or by motor. Characterized in that the setting device can be controlled by a control with which the gap between the carding elements, suction hoods or discharge knives and the
- Drum can be determined and adjusted, a card with fully automatic card gap setting in the pre, main and post carding zone can be realized.
- FIG. 1 shows a schematic side view of a card with the device according to the invention
- Figure 2 is a schematic representation of the wedge bar with the adjusting device according to the invention.
- FIG. 3 shows a further schematic illustration of the wedge strip with the adjusting device according to the invention
- Figure 4 shows a section through the extension sheet with the
- FIG. 1 shows a card 100 according to the prior art, in which fiber flakes are passed via a shaft to a feed roller 1, a feed table 2, via a number of licker-in bars 3a, 3b, 3c, to the drum 4 or to the drum.
- the fibers of the fiber flakes are parallelized and cleaned on the drum 4 by means of fixed carding elements 20, suction hoods and separation knives and by means of peripheral carding elements 14 arranged on a revolving cover system 17.
- the resulting fibrous web is then conveyed via a taker 5, a taker-off roller 6 and a plurality of squeezing rollers 7, 8 to a fleece guide element 9, which forms the fibrous web with a funnel 10 to form a fiber band, which is drawn off via take-off rollers 11, 12 to a subsequent processing machine or Jug 15 passes.
- the setting of the carding elements 14 to the drum 4 takes place via slide strips 18, which have elements that are aligned in a wedge shape with respect to one another.
- an extension bend 30 is arranged on both sides of the card 100, which essentially has the radius of the drum 4.
- the extension arch 30 is arranged on both sides of the drum 4 on the side plate (not shown) and is attached to it in a detachable or non-detachable manner.
- the extension bend 30 can also be cast or welded onto the side plate.
- the carding elements 20 shown here have end plates 21 on both sides which can be adjusted in height and inclination by means of fastening elements 23 on a base plate 22. The basic setting of the distance between the carding elements 20 and the drum 4 is carried out in this way.
- the necessary pretension between the end plate 21 of the carding element 20 and the base plate 22 is generated via a spring element 24.
- the distance is not adjusted using the base plate shown here, but using other adjustment elements.
- the base plates 22 are fastened to the extension arch 30 by means of fastening elements 33. Since the distance for each carding element 20, suction hood and discharge knife can be set differently from the drum, so-called spacer elements 35 can optionally be used, with which a further fine adjustment takes place after the basic setting.
- the spacer elements 35 are inserted on the end face between base plate 22 and extension arch 30. For better differentiation of the spacer elements 35 from one another, they can be designed in different colors, each color being assigned a separate spacing or spacing area.
- Suction hoods and knives are also attached to the extension bend by means of base plates 22 and fastening elements 33
- Each extension arch 30 can have a groove 30a, in which a wedge-shaped slide bar 31 is arranged.
- the surface of the groove 30a is also wedge-shaped and acts with the wedge-shaped slide bar
- the wedge-shaped slide bar 31 can be displaced within the groove 30a by means of an adjusting device 36, so that the outer surface 31a of the slide bars 31 is at a greater or smaller distance from the groove base, which also changes the radius of the surface of the slide bar 31 at the same time.
- the distance of the carding element 20 to the drum 4, which is attached to the extension sheet 30 on both sides via the base plates 22, can be adjusted.
- the change in distance changes the gap between the carding element 20 and the drum 4. Since the base plates 22 are firmly screwed to the extension arch 30 according to the prior art, each screw connection must first be loosened before the distance between the base plate 22 and the extension arch 30 can be adjusted.
- the carding elements 20 are stationary with the extension sheet 30 through the base plates 22
- the slidable slide bar 31 being arranged between the base plates 22 of the carding elements 20 and the extension sheet 30. So that the slide bar 31 can be moved in the groove 30a of the extension sheet 30 without loosening the fastening elements 33, the carding elements 20 are applied to the slide bar 31 by means of a prestressing force pressed. When the slide bar 31 is adjusted, the frictional force between the wedge bar and the wedge-shaped groove is increased by the pretensioning force, but this ensures that the base plates 22 of the carding elements 20 always rest on the slide bar 31.
- the carding elements 20 are thus fixed in place by the fastening elements 33 in a radial orientation, in the direction of the drum 4 — that is to say axially to the fastening element 33 — the position can be changed.
- the prestressing force during or during the displacement of the slide bar 31 can preferably be reduced by lowering the pressure in the case of pneumatic or hydraulic prestressing elements.
- the spring 24 shown in this embodiment can be relieved for example by means of a pneumatic pressure cushion for the adjustment process.
- Each carding element 20, suction hood and separation knife has a separate element for generating the pretensioning force, which can be individually adjusted.
- Each carding element 20, suction hood and discharge knife can thus be set separately and independently of the others at a distance from the drum.
- the structural design of this exemplary embodiment provides that the slide strips 31 have elongated holes 32 or grooves through which the fastening elements 33 extend and thus connect the base plate 22 to the extension arch 30.
- the base plates 22 are loaded with force or with a prestress on the slide bar 31 and can thus be adjusted in height to the extension arch 30 by means of the slide bar 31.
- the force loading or pretensioning is easiest by means of springs 34 which cooperate with the fastening elements 33.
- pneumatic or hydraulic control elements can also be used for the load or preload.
- the force elements can be arranged on the outer radius of the extension bend, or on the Inner radius.
- the carding elements 20 are fixed in place by the attachment to the extension sheet 30, but are adjustable in height or at a distance from the extension sheet 30.
- the adjustment takes place by means of the adjusting device 36 by the displacement of the wedge-shaped slide bar 31, which takes place against the force load or preload of the springs 34.
- the change in the radial gap between the carding element 20 and the drum can be read and checked on the setting scale 37.
- the slide bar 31 can be adjusted manually or by means of a motor drive. Both variants can be covered by an adjusting device 36.
- the motorized adjustment of the slide bar 31 can be controlled by means of a control which detects the gap between the carding element 20, the suction hoods and / or the separating knife.
- brackets or sliding blocks which overlap the slide bar 31 can also connect the carding elements 20 to the extension arch 30 in a fixed manner, the slide bar 31 then being arranged displaceably underneath.
- the clamps or sliding blocks can also be pressed onto the slide bar 31 by means of compression springs or disc springs, or by means of pneumatic or hydraulic prestressing or force.
- the extension bend 30 has an arcuate guide in the region of a lateral end face, which can be designed as an elongated hole 30b, the guide extending over an arc of up to 20 ° on the circumference of the extension bend 30.
- the elongated hole 30b extends with its depth only approximately to the middle of the cross section of the extension arch 30.
- a sliding element 38 is slidably arranged within the elongated hole 30b and can be fixed in a clamping manner by means of a pin 39 with a fastening element 40.
- the Guide element 38 can be designed, for example, as a sliding block.
- the guide element 38 can also be bent slightly in accordance with the arcuate slot 30b in order to prevent jamming.
- Another elongated hole 30c is arranged orthogonally to the elongated hole 30b within the extension arch 30 and extends from the groove 30a to the elongated hole 30b.
- the section modulus of the support element 30 is reduced only insignificantly. Adjustment and thus bending of the extension arch 30 by the adjusting device 36 causes almost no deviation of the surface of the groove 30a from the ideal arch shape due to the only slightly weakened cross section.
- the elongated hole 30c extends over the same arc or circumference as the elongated hole 30b and receives a driver 41 which is fastened in the guide element 38 and is guided in the elongated hole 30c.
- the driver 41 protrudes with its head beyond the surface of the groove 30a.
- the head 41 a of the driver 41 in turn engages without play in a receptacle or bore of the slide bar 31.
- the head 41 a of the driver 41 can be designed as a spherical cap or ball head.
- two drivers 41 can also be connected and arranged at a distance from one another within the elongated hole 30c with the guide element 38.
- the slide bar can also be adjusted by means of a toothed rack and pinion, as is known in the prior art.
- the exemplary embodiments are not limited to the ability to adjust carding elements, but can also be used for suction hoods and separating knives are used, the distance to the carding drum of which is to be adjusted during operation.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Preliminary Treatment Of Fibers (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201980059519.8A CN112689690B (en) | 2018-10-09 | 2019-08-01 | Carding machine with device for adjusting gap between fixed element and cylinder |
BR112021005490-1A BR112021005490B1 (en) | 2018-10-09 | 2019-08-01 | CARD WITH A DEVICE FOR ADJUSTING THE GAP BETWEEN STATIONARY ELEMENTS AND A DRUM |
EP19749699.5A EP3864203B1 (en) | 2018-10-09 | 2019-08-01 | Card having a device for setting the carding gap between stationary elements and a drum |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018124878.4 | 2018-10-09 | ||
DE102018124878.4A DE102018124878B3 (en) | 2018-10-09 | 2018-10-09 | Card with a device for adjusting the gap between fixed elements and a drum |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2020074149A1 true WO2020074149A1 (en) | 2020-04-16 |
Family
ID=67544236
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2019/070770 WO2020074149A1 (en) | 2018-10-09 | 2019-08-01 | Carder having a device for setting the carding gap between stationary elements and a drum |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3864203B1 (en) |
CN (1) | CN112689690B (en) |
DE (1) | DE102018124878B3 (en) |
WO (1) | WO2020074149A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019110654A1 (en) | 2019-04-25 | 2020-10-29 | TRüTZSCHLER GMBH & CO. KG | Method and textile machine for automatically setting and maintaining a defined distance between a rotatably mounted drum and another component |
DE102021120249A1 (en) | 2021-08-04 | 2023-02-09 | Trützschler Group SE | Device for adjusting the working distance between two working elements of a card or card, which are designed to be movable relative to one another, and a card or card comprising such a device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1993007314A1 (en) * | 1991-09-23 | 1993-04-15 | Carding Specialists (Canada) Limited | Setting device for a carding engine |
DE102005005200A1 (en) * | 2005-02-03 | 2006-08-10 | Trützschler GmbH & Co KG | Device on a spinning preparation machine, in particular carding, carding o. The like., In which a garnished roller is opposite to a machine element |
DE102005052142A1 (en) | 2005-10-28 | 2007-05-03 | TRüTZSCHLER GMBH & CO. KG | Adjuster for gap between cylinder clothing and fiber working elements on a card uses thermal expansion of hydraulic oil to control movement |
DE19831139B4 (en) | 1998-07-11 | 2015-06-18 | Trützschler GmbH & Co Kommanditgesellschaft | Use of a device on a spinning preparation machine, in particular carding machine, cleaner or the like, with at least one carding segment |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19628164B4 (en) * | 1995-07-20 | 2006-11-09 | Maschinenfabrik Rieter Ag | Adjustable fleece guide |
DE19825317B4 (en) * | 1998-06-05 | 2010-01-14 | TRüTZSCHLER GMBH & CO. KG | Device on a card with a wandering lid made of cover rods provided with clothing |
DE102004035771A1 (en) * | 2004-07-23 | 2006-03-16 | Trützschler GmbH & Co KG | Device on a card with a drum, the drum opposite garnished and / or non-garnished elements and fixed side panels |
-
2018
- 2018-10-09 DE DE102018124878.4A patent/DE102018124878B3/en active Active
-
2019
- 2019-08-01 CN CN201980059519.8A patent/CN112689690B/en active Active
- 2019-08-01 WO PCT/EP2019/070770 patent/WO2020074149A1/en unknown
- 2019-08-01 EP EP19749699.5A patent/EP3864203B1/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1993007314A1 (en) * | 1991-09-23 | 1993-04-15 | Carding Specialists (Canada) Limited | Setting device for a carding engine |
DE19831139B4 (en) | 1998-07-11 | 2015-06-18 | Trützschler GmbH & Co Kommanditgesellschaft | Use of a device on a spinning preparation machine, in particular carding machine, cleaner or the like, with at least one carding segment |
DE102005005200A1 (en) * | 2005-02-03 | 2006-08-10 | Trützschler GmbH & Co KG | Device on a spinning preparation machine, in particular carding, carding o. The like., In which a garnished roller is opposite to a machine element |
DE102005052142A1 (en) | 2005-10-28 | 2007-05-03 | TRüTZSCHLER GMBH & CO. KG | Adjuster for gap between cylinder clothing and fiber working elements on a card uses thermal expansion of hydraulic oil to control movement |
Also Published As
Publication number | Publication date |
---|---|
DE102018124878B3 (en) | 2019-12-12 |
EP3864203B1 (en) | 2023-10-04 |
BR112021005490A2 (en) | 2021-06-15 |
BR112021005490A8 (en) | 2022-07-05 |
CN112689690B (en) | 2023-04-07 |
CN112689690A (en) | 2021-04-20 |
EP3864203A1 (en) | 2021-08-18 |
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