WO2007071087A1 - Barre de chapeau pour carde - Google Patents

Barre de chapeau pour carde Download PDF

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Publication number
WO2007071087A1
WO2007071087A1 PCT/CH2006/000705 CH2006000705W WO2007071087A1 WO 2007071087 A1 WO2007071087 A1 WO 2007071087A1 CH 2006000705 W CH2006000705 W CH 2006000705W WO 2007071087 A1 WO2007071087 A1 WO 2007071087A1
Authority
WO
WIPO (PCT)
Prior art keywords
support body
head end
flat bar
flat
clamping connection
Prior art date
Application number
PCT/CH2006/000705
Other languages
German (de)
English (en)
Inventor
Götz Theodor Gresser
Christian Sauter
Lars Weisigk
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
Priority to EP06817757A priority Critical patent/EP1963554A1/fr
Publication of WO2007071087A1 publication Critical patent/WO2007071087A1/fr

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
    • D01G15/14—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 flat bar for a card, which has a support body, two connecting parts and two head end pieces, the head end having at least one, preferably two sliding portions which define a Gleit Adjusts St, and a device for adjusting the flat bars of a card.
  • document DE10358257 describes a flat rod in which the head end pieces are designed as pins. These pins are fixed directly in the foot part of the supporting body of the flat bar without using a connecting part. The undersides of the horizontally mounted pins at the same time form the sliding surfaces on which the lids are guided over the sliding elements fixed to the side plate of the machine. The pins are positioned in the production of the flat bars in specially provided wells in the cover base and then shed. By a corresponding design of the recesses, it is possible to achieve an adjustment of the distance between the lower boundary of the sliding region, ie the sliding guide surface, and the free tips of the flat clothing, ie the support body level.
  • Adjustable cover rods are also known per se, as for example from document DE10046916. This is known from a support body and two Kopfend Gien flat rod is known, which has a built-in head end piece Einstelltechnik- has. For this purpose, a division of the Kopfend thoroughlyes is proposed in two parts. The connection between the two parts or the second part itself are then to be designed so that an adjustment of the distance between the support body and the sliding surface of the Kopfend smoothiees is possible. In this embodiment too, an adjustment of the position of the two planes relative to one another is not possible.
  • the patent EP0383479 shows a flat rod, in which various adjustment screws give the possibility to adjust the distance between the free tips of the clothing of the flat bar (carrier plane) and the lower boundary of the sliding portion of the Kopfend unanimouse (Gleit Adjusts St).
  • the construction shown only allows for an adjustment in the vertical axis, but an adjustment of the position of the different surfaces to each other is not possible.
  • the supporting body of the flat bar shown must consist of two components. The two components of the support body are connected to each other over the entire width of the card at more than two points by means of the aforementioned adjusting screws. This results in a great effort for the adjustments.
  • the patent US 4,757,575 also shows adjustable flat bars.
  • the flat bars consist of a carrier body and two head end pieces.
  • the connection of the support body and head end piece is designed as a screwed connection.
  • the support body and the Kopfend nowadays be assembled outside the card.
  • spacers By manufacturing tolerances differences between different components of the flat bars are compensated during assembly with spacers.
  • the support body and the Kopfend commonlye the appropriate number of spacers are installed so that the distance between the tips of the drum set and the tips of the Deckelgamitur, also referred to as a carding gap, comes to rest within the specified tolerances.
  • the embodiment shown allows a reuse of the support body and Kopfend technicallye in a reincarnation.
  • the adjustment options are limited to the setting of the distance in the vertical axis of the flat bar, an additional correction of the position of the different levels against each other is not possible.
  • the setting of a distance with a tolerance in the Size of 1/100 mm consuming and requires for the correct selection of the spacers a prior measurement of the tolerances to be compensated.
  • the patent EP1004692 shows the possibility of reusing decoupling.
  • the method described here for adjusting the distance between sliding guide surface resp. Drum set and free tips of the flat set requires, however, a mechanical processing of Deckelstablauf vom.
  • the flat bars are to be sorted according to their size before they can be reused to obtain a uniform distance between the carrier plane and the Gleit Adjuststhesis all flat bars of a card.
  • the flat bars to be used are already ground on the clothing side before the first insertion, so that all flat bars have exactly the same dimensions. Only in this way could the highest demands on carding performance and quality be fulfilled to this day.
  • connection that are used between the support body and head end pieces are, for example, screw connections, cast connections (casting resin), press connections and, among other crimp connections. All compounds used to date are based on the principle of positive engagement, such as the performance of interlocking molding as shown in EP0303479. These types of connections must be made precisely to prevent an adjustment of the flat bars not impossible. This has the disadvantage that a production with small tolerances leads to complex manufacturing processes and thus causes high costs.
  • the object of the present invention is now to provide a flat rod or a device of the type mentioned at the outset which does not or only to a small extent have the disadvantages mentioned, substantially simplifies the manufacture and introduction of the device. Position of the flat bars result and allow significant cost savings in maintenance and operation of the card. In addition, it is the object of the present invention to achieve a flexible design of the setting of individual flat bars within a bandage of flat bars and thereby different possible adjustment variants and an improvement of the setting accuracy and thus the highest possible carding performance while maintaining the same quality.
  • the lower limits of the sliding area of the head end pieces can also be adapted to the course of the sliding surface of the flex bend, resulting in a surface substantially similar to a jacket face of a cylinder.
  • the angle of attack ⁇ is referred to as the angle formed by the tangent to the outer surface of the drum and the vertical axis of the flat bar or the carrier plane, wherein the tangent and the vertical axis of the flat bar intersect at the tangent point.
  • the tangent point is the point at which the tangent and the circumference touch each other at a point.
  • the angle of attack ⁇ can be positive or negative. Thanks to the new connecting part according to the invention, it is possible that the flat bars of a traveling lid set occupy different positions to the opposite drum surface, for example it is conceivable that the angle of attack ⁇ of consecutive flat bars increases with a periodicity (eg 5, 8, 12, 16, 5 , 8, 12, 16, 5, 8, degrees).
  • the inventive compound is characterized in that the head end pieces are not attached directly to the support body but by means of a connecting part on the support body and thereby are movable and adjustable in at least one axis regardless of position and position of the connecting part.
  • the connection of the head end pieces with the support body is ensured by a clamping connection.
  • the contacting surfaces of this clamping connection der- be coated type that even at low clamping forces no slipping of the components occurs.
  • the surfaces can also be only partially coated or only one component of the clamping connection is coated accordingly to allow a reliable adjustment of the lid head position even at low forces.
  • the friction-enhancing coating also contributes to the stability of the clamping connection with larger loads of Deckelendköpfe.
  • FIG. 1 is a perspective view of a flat bar with a head end piece prepared for attachment by means of a connecting part in a preferred embodiment.
  • FIG. 3b is a view of FIG. 3a from below showing the reference planes and
  • FIG. 4 a shows a side view of a preferred embodiment of the connection according to the invention, wherein the possible adjustment in the vertical axis Z is shown in FIG. 4 b a side view of a preferred embodiment of the connection according to the invention, wherein the possible adjustment or rotation about the axis X is shown is
  • Fig. 4c is a front view, shown in the viewing direction III in Fig. 4a of a preferred embodiment of the inventive compound, wherein the possible adjustment or rotation about the axis Y is shown
  • Fig. 5a, b is a schematic representation of various embodiments of settings for lid sets of Wanderdeckelkarden 6a shows a side view of a preferred embodiment of the inventive compound
  • Fig. 6b is a top view, shown in the section line II - II in Fig. 6a, a preferred embodiment of the inventive compound Fig. 6c embodiment of the inventive compound without clamping means
  • Fig. 6d embodiment of the inventive compound with a portion of the support body as a peripheral means of the clamping connection
  • FIG. 6e shows a view from above, shown in the section line II-II in FIG. 6a, of a further preferred embodiment of the connection according to the invention.
  • FIG. 7 shows a schematic representation of a device according to the invention for adjusting cover rods
  • the fibrous material to be carded which may consist of natural fibers or synthetic fibers or mixtures thereof, is fed into the hopper 2 in the form of dissolved and cleaned flakes, taken over by a Britisher or a licker-in 3 as a batt and a drum or a drum Pass drum 4.
  • the flakes are dissolved on the drum and paral- lelized. This process is mainly done by the interaction of drum and lid set.
  • the revolving lids are driven via deflection rollers 6, 7, 8, 9 in opposite directions to the direction of rotation 10 of the drum 4.
  • the fibers form the fiber web located on the drum 4, which is then removed from a doffer roll 11 and formed in a conventional manner in a, consisting of different rolls, discharge section 12 to a card sliver 13.
  • This card sliver 13 is then deposited by a band tray 14 in a transport can 15 in a cycloidal manner.
  • Fig. 2 shows the card 1 of Fig. 1 in the region of the revolving lid 16 on a larger scale and in further detail.
  • a hollow body formed as a support member 17 which carries the flat set 19, and two Kopfend constitutionalen 18, to the respective ends of the hollow profile-like support body 17 are attached and are connected via connecting parts 27 with the support body 17.
  • the flex bend 22 is adjusted in its radial height so that together with the distance of the Gleit Adjusts Stavereau 20 of the Kopfend Publishedes 18 Trageniaebene 25 of the so-called carding nip 24 results in a predetermined value depending on the default setting of the flat bars 16.
  • a sliding strip on the flex bend 22 may be present. With an appropriate design of the slide bar can be dispensed with the head piece 18 on the shoe 26.
  • the carding nip 24 is the distance between the tips of the drum assembly 23 and the free tips of the flat clothing or the carrier plane 25.
  • the size of the carding nip 24 has, inter alia, a significant influence on the carding process, i. the carding performance and the quality of the carded nonwoven in a card 1.
  • the setting of the so-called pitch ⁇ has a significant influence on the results of the carding.
  • FIG. 3a shows a detail view in perspective view of the one end of a flat bar 16.
  • the flat bar 16 essentially consists of a support body 17, which is designed as a hollow profile, a connecting part 27 and a head end piece 18.
  • a deferred sliding shoe 26 is shown, this forms with its lower edge of the sliding guide surface 20 of the flat bar 16. If omitted by appropriate design of the head end piece 18 on the shoe 26 so forms the lower edge of the Kopfend Republices 18, the sliding guide surface 20 of the flat bar sixteenth
  • the opening 18a in the head end 18 provides the area for attachment of a transport (not shown).
  • the head end piece 18 may be designed in the type shown, but possibly also consist of two pins, which would be arranged to the left and right of the opening 18 a and so would replace the slide shoe 26 shown.
  • the sliding guide surface 20 of the flat bar 16 would be formed by the lower edges of the pins.
  • the sliding shoe 26 also embedded band-shaped guide elements as described in DE 3907396 can be used.
  • a part would be mounted on the top of the pins, which is suitable for fastening the flat bar 16 on a conveyor belt 5.
  • Fig. 3a also shows the inventive clamping connection of the support body 17 with the head end 18 via a connecting part 27.
  • the connecting part 27 is inserted in the lower part of, designed as a hollow profile, supporting body 17.
  • the head end piece 18 can be rotated together with the connecting part 27 about the axis X, which corresponds to the transverse axis of the supporting body 17 and the flat bar 16, respectively.
  • the sliding guide surface 20 can be adjusted.
  • the rotation C about the axis X serves to adjust the sliding guide surface 20, so that a uniform contact of Gleit Adjusts Design 20 and sliding surface 21 of the flex bend 22 results, regardless of possible manufacturing tolerances.
  • a rotation C about the axis X is made possible in that the hollow profile of the support body 17 at the point where the connecting part 27 is inserted is higher than the connecting part 27 itself.
  • the Kopfend- piece 18 is rotated not only relative to the support body 17, but also with respect to the connecting part 27, resulting in a significantly increased degree of freedom. This is achieved in that the head end 18, for example, with a screw to the Connecting part 27 is screwed, whereby a rotation about the axis Y is possible.
  • the resulting entanglement of support body 17 and head end 18 is at the angle ⁇ the so-called angle of attack, referred to (see Fig. 4c).
  • the abovementioned numerical values for gap widths and rotations can be arbitrarily extended or else restricted.
  • Fig. 3b for clarity, the two reference planes, namely the support body level 25 and the Gleit Adjusts the 20, and the associated axes X, Y and Z in a bottom view I of Fig. 3a are shown.
  • the arrows A, B and C show the possible directions of movement in which the head end 18 can be adjusted alone or together with the connecting part 27 relative to the support body 17.
  • FIGS. 4a to 4c show the movements or adjustments which are possible by the use of the connection according to the invention, preferably a clamping connection 27.
  • FIG. 4a the overall height of the connecting part 27 with h ⁇ and the height of the opening in the support body 17 with h ⁇ is indicated. Since the height hi ⁇ of the connecting part 27 is made smaller than the opening height hr in the support body 17 results from the difference a game a.
  • the game a corresponds to the freedom of movement of the connecting part 27 in the plane perpendicular to the support body 25 axis Z, as shown by directional arrow A.
  • FIG. 4b shows the rotation of the head end piece 18 with the connection part 27 within the opening of the support body 17 about the axis X.
  • the angle formed between see the horizontally drawn axis Y of the support body 17 and the inclination of the connecting part 27 and the Kopfend thoroughlyes 18 is denoted by ß.
  • Fig. 4c shows the view III of Fig. 4a.
  • Fig. 4c shows the rotation of the Kopfend thoroughlyes 18 about the axis Y.
  • the angle formed between the vertical axis Z of the support body 17 and the inclination of the Kopfend sushies 18 is denoted by ⁇ .
  • the connecting part 27 remains in a substantially vertical position. Upon rotation of the head end piece 18 about the axis Y, the head end piece 18 is rotated relative to the support body 17 and the connecting part 27.
  • FIGS. 5a and 5b show various embodiments of settings for lid sets of revolving flat cards.
  • the flat bars 16 are arranged such that over three flat bars a time, seen in the direction of rotation 10 of the drum 4, a decreasing carding gap 24 from flat bar 16 to flat bar 16 results. After three flat bars 16, the same cycle begins again (periodicity).
  • the flat bars 16 are arranged such that over three flat bars away, seen in the direction of rotation 10 of the drum 4, decreasing angle ⁇ of flat bar 16 to flat bar 16 results. After three flat bars 16, the same cycle begins again (periodicity).
  • Fig. 6a shows a side view of a flat bar 16 with built-in connector 27 and head end piece 18 attached thereto.
  • the view is seen from the inlet side, that is, the flat bar 16 moves toward the viewer in use and the drum surface 28 away from the viewer.
  • the carding nip 24 (shown schematically) is determined by the distance between the drum surface 28 and the sliding guide surface 20, and the distance h2, where h2 the preset distance between the support body level 25 and the Gleit Adjusts Design 20 at the inlet page corresponds.
  • any desired ratio can be selected between h1 and h2, which means that the carding gap 24 does not necessarily have to be the same on the inlet side as the outlet is soapy, based on the individual flat rod 16.
  • Fig. 6b shows a section through the inventive compound.
  • the connecting member 27 shown in the preferred embodiment of a clamping connection as an embodiment comprises a central means 27b, at least one peripheral means 27a, 27c and a clamping means 27d.
  • the clamp connection 27 is activated.
  • Activation of the clamping connection 27 can, as shown in the exemplary embodiment, be carried out by means of a screw, preferably an expansion screw, as a tensioning means 27d.
  • a tensioning means 27 d another, force-introducing means such as a spring, a wedge, a tension lock or the like can also be used instead of a screw.
  • the central means 27b is moved towards the head end piece 18 in such a way that the peripheral means 27a, 27c are moved outwards against the support body 17.
  • the central means 27b as well as the peripheral means 27a, 27c are shown in Fig. 6b in a preferred embodiment.
  • the various components of the connecting part 27 are also possible and conceivable in other designs, such as cylindrical or conical.
  • the actual shape of the means used is also dependent on the design of the support body 17 and is adapted to its shape.
  • the support body 17 and the clamping connection 27 are matched in shape to one another so that a sufficiently large adhesion can be built to connect the head end 18 with the support body 17, preferably without causing a deformation of the support body 17.
  • a fuse to install is also a fuse to install. This fuse may be implemented in a form known per se from fastening technology, such as a lock washer, a wire lock, an adhesive.
  • FIGS. 6c and 6d and FIG. 6e show further possible designs of the connection according to the invention.
  • connection is activated by a strike on the central means 27b.
  • no tensioning means 27d is used.
  • the activation of the tensioning means 27d results in a deformation of the central means 27b such that the use of special peripheral means 27a, 27c in the connection according to the invention is unnecessary.
  • the area of the support body 17 surrounding the central means 27b is to be regarded as a peripheral means 27a, 27c.
  • Fig. 6e shows a further preferred embodiment of the inventive compound.
  • the peripheral means 27a, 27c of the connecting part 27 are designed as diagonally separate halves of a cuboid.
  • the two components 27a, 27c are provided with a bore through which the clamping means 27d, in the embodiment, a screw is used, is performed.
  • the central means 27b of the connecting part 27 is mounted in the embodiment shown at one, the head end 18 opposite end of the connecting part 27 and is held by the clamping means 27d. By tightening the screw 27 d, the central means 27 b is pulled against the head end piece 18 and the peripheral means 27 a, 27 c are pressed apart and pressed against the support body 17.
  • the oblique sliding surfaces of the peripheral means 27a, 27c can be designed so that they rest only in places to obtain a better sliding.
  • connection of the head end pieces 18 to the support body 17 shown in FIGS. 6a to 6e can be reinforced in their effect by attaching a friction-enhancing coating on the surfaces of the connecting part 27 contacting the support body 17.
  • a friction-enhancing coating can be made, for example, of silicon carbide. Grains, a rubber or materials which produce a high roughness consist, which is applied to a support body 17 opposite surface. In this case, only parts of the opposing surfaces may be coated instead of the entire surface. It is also for a simple disassembly of the connecting part 27 advantageous if only one peripheral means 27a, 27c, or only one side of the central means 27b in the case of the embodiment of FIG. 6d, provided with a coating.
  • Stability-enhancing means that even at low contact forces slipping of the clamping connection 27 within the support body 17 no longer occurs. Also, thereby a greater reliability is achieved in the operation of the machine, since even at low tightening torques of the clamping means 27 d an increased load on the lid end heads 18 can lead to any adjustment of the set distances and angles.
  • Fig. 7 shows an inventive device for adjusting the flat bars 16 outside the card 1, which allows exact conditioning of the flat bars 16.
  • Each individual support body 17 is retained in this device on a bearing surface 29 with suitable fastening means 30.
  • the connecting parts 27, preferably clamping connections, are used and the head end pieces 18 are also held and positioned with suitable fastening means 31.
  • the distance and the position of the sliding guide surface 20 to the support body level 25 according to the requirements in the corresponding axes X, Y, Z can now be adjusted by moving the Kopfend Publishedes 18 and then activates the clamp connection 27 and thus the setting are held.
  • the activation of the inventive clamping connection can take place in various ways, preferably by tightening a screw.
  • the type of activation depends on the use of a tensioning means 27d and, when using such a type of tensioning means 27d.
  • a suitable fastening means 30, 31 for holding the support body 17, connecting part 27 and head end 18 are manually operated Halte- ments as well as automatically functioning brackets, preferably pneumatic clamping devices, conceivable.
  • suitable fastening means 31 In such a device corresponding bearing surfaces for the head end pieces 18 are provided and the bearing surfaces 29 for the support body 17 are to be replaced by movable fastening means.
  • the invention is not limited to the explicitly stated possibilities and embodiments.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Abstract

L'invention concerne une barre de chapeau pour carde, la barre de chapeau présentant un support comportant un plan, deux pièces de raccordement et deux embouts de tête présentant au moins une, de préférence deux, zones de glissement qui définissent une surface de guidage à glissement. L'ajustement de la distance et de la position du plan du support par rapport à la surface de guidage à glissement est réalisé dans au moins un axe par accouplement par serrage desserrable et assemblage à force du support aux pièces de raccordement, sur lesquelles sont fixés les embouts de tête. L'invention concerne également un dispositif pour préajuster des barres de chapeaux d'une carde, la distance et la position du plan du support par rapport à la surface de guidage à glissement des embouts de tête pouvant être ajustées dans le dispositif.
PCT/CH2006/000705 2005-12-21 2006-12-15 Barre de chapeau pour carde WO2007071087A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06817757A EP1963554A1 (fr) 2005-12-21 2006-12-15 Barre de chapeau pour carde

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2038/05 2005-12-21
CH20382005 2005-12-21

Publications (1)

Publication Number Publication Date
WO2007071087A1 true WO2007071087A1 (fr) 2007-06-28

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ID=37726961

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH2006/000705 WO2007071087A1 (fr) 2005-12-21 2006-12-15 Barre de chapeau pour carde

Country Status (3)

Country Link
EP (1) EP1963554A1 (fr)
CN (1) CN101351584A (fr)
WO (1) WO2007071087A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012006557A1 (de) * 2012-04-02 2013-10-02 Trützschler GmbH & Co Kommanditgesellschaft Deckelstab für eine Karde, der einen Tragkörper mit einem Garnituraufnahmeteil und eine Rückenteil aufweist

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4827573A (en) * 1985-02-15 1989-05-09 Hans Kuehl Top bar
US5090092A (en) * 1990-08-31 1992-02-25 John D. Hollingsworth On Wheels, Inc. Carding flat assembly
EP0618318A1 (fr) * 1993-03-30 1994-10-05 Maschinenfabrik Rieter Ag Appareil pour attacher des éléments de travail
EP0627507A1 (fr) * 1993-06-03 1994-12-07 Maschinenfabrik Rieter Ag Machine de cardage avec chapeaux mobiles

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4827573A (en) * 1985-02-15 1989-05-09 Hans Kuehl Top bar
US5090092A (en) * 1990-08-31 1992-02-25 John D. Hollingsworth On Wheels, Inc. Carding flat assembly
EP0618318A1 (fr) * 1993-03-30 1994-10-05 Maschinenfabrik Rieter Ag Appareil pour attacher des éléments de travail
EP0627507A1 (fr) * 1993-06-03 1994-12-07 Maschinenfabrik Rieter Ag Machine de cardage avec chapeaux mobiles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012006557A1 (de) * 2012-04-02 2013-10-02 Trützschler GmbH & Co Kommanditgesellschaft Deckelstab für eine Karde, der einen Tragkörper mit einem Garnituraufnahmeteil und eine Rückenteil aufweist
GB2502419A (en) * 2012-04-02 2013-11-27 Truetzschler & Co Card flat for a carding machine, comprising a carrying member and drive transfer element with releasable fastening means

Also Published As

Publication number Publication date
EP1963554A1 (fr) 2008-09-03
CN101351584A (zh) 2009-01-21

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