EP1178136A1 - Dispositif pour le réglage de l'espace de travail entre les pointes de la garniture de chapeau et les pointes de la garniture de cylindre de cardage d'une machine de cardage - Google Patents

Dispositif pour le réglage de l'espace de travail entre les pointes de la garniture de chapeau et les pointes de la garniture de cylindre de cardage d'une machine de cardage Download PDF

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Publication number
EP1178136A1
EP1178136A1 EP01116736A EP01116736A EP1178136A1 EP 1178136 A1 EP1178136 A1 EP 1178136A1 EP 01116736 A EP01116736 A EP 01116736A EP 01116736 A EP01116736 A EP 01116736A EP 1178136 A1 EP1178136 A1 EP 1178136A1
Authority
EP
European Patent Office
Prior art keywords
inner support
card
radially inner
adjustment
elements
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Withdrawn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
EP01116736A
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German (de)
English (en)
Inventor
Olivier Wüst
Renè Schmid
Christoph Stäheli
Götz Theodor Dr. Gresser
Christian Sauter
Jürg Faas
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 EP1178136A1 publication Critical patent/EP1178136A1/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Withdrawn legal-status Critical Current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
    • D01G15/28—Supporting arrangements for carding elements; Arrangements for adjusting relative positions of carding elements

Definitions

  • the present invention relates to a device for adjusting the working gap between the tips of the cover set and the tip of the drum set one Card, with the flat rods provided with trimmings over a portion of the Drum circumference on both sides of the card on respective, convex curved Slideways are guided, their sliding surfaces with respect to the axis of rotation of the drum are radially adjustable.
  • the old US patent 528007 from October 23, 1894 describes a revolving card, in which the flat bars provided with flat clothing at their ends are attached to respective endless chains and by means of these endless chains are pulled over slide guides provided on both sides of the card, so that the clothing tips relative to the clothing tips of the drum and in a constant Distance from this moved over a portion of the circumference of the drum and thereby perform the desired carding work.
  • the flat bars After moving along the sliding guides, the flat bars are deflected around a pair of sprockets and returned to another sprocket, which also serves as a deflection point, and arrive in this way again on the sliding guides so that they are back with the clothing tips the drum can perform the desired carding work. So get there the flat bars repeatedly on the slide guide and repeatedly perform carding work with the drum.
  • the sliding surfaces have on the respective slide guides on both sides of the card slide. These sliding surfaces determine the distance with the sliding surfaces of the sliding guides between the tips of the cover sets and the tips of the drum sets. This distance must be observed when the card is manufactured and when the card is re-installed Card can be set exactly, nowadays carding distances, i.e. distances between the tips of the cover sets and the drum set in the area of about 0.2 mm. Only then is high-quality carding work with high production the teasel possible.
  • the sliding guide on the card is after the US-PS 528007 radially adjusted relative to the drum axis of rotation to the desired Carding distance must be observed.
  • the sliding guides are known as Flexbows formed, which means in three different places in the US patent Adjusting rods are attached to the side frame of the card frame.
  • Adjusting rods can be the three points at which the adjustment rods on the flex bend attack, each radially opposite the card frame and therefore the drum axis be adjusted, whereby it should be understood that the radial adjustment on three circumferentially distributed points the curvature of the flexbends, i.e. the sliding guides, is changed slightly, i.e. the flex bends are bent.
  • the card After setting the carding distance along the sliding guides, the card can be in Be put into operation. Over time, the tips of the Lid sets and the drum set, so that the carding distance in undesirable Way enlarged. To counteract this increase in the carding distance, All adjustment rods can also be used together in the old US patent specification 528007 be adjusted to the carding distance to the originally intended Value attributed.
  • the adjusting rods at their ends facing away from the flex bend not attached directly to the side frame of the card frame, but on respective arms of angle levers that are rotatable on the side frames of the card frame are mounted.
  • the other arms of the respective angle levers are together and connected to an adjusting wheel via respective connecting rods, so that by Rotation of the adjusting wheel a common adjustment of the angle lever and thus over the adjustment rods of the respective points of attack of the adjustment rods on the flex bends.
  • a change in the setting of the flex bends is not only when the cover sets are worn or the drum sets required, but also after grinding the Drum set or the cover sets.
  • EP-A-0 565 486 known to install a grinding device in a card, which is much more common and the card is used during production to ensure that the respective sets remain sharp.
  • This latter possibility has the great advantage that the card is not stopped when grinding the drum and cover sets must, so that the production is not affected. It also ensures that the trimmings always have an optimal sharpness and thus always a Card sliver is produced with uniform and high quality properties the subsequent yarn production benefits. Furthermore, such leads Grinding system to ensure that the sets have a longer service life overall.
  • a card was offered by the company SACM in about 1975 adjusting the lids on each side of the machine from a single point by means of two mutually adjacent and mutually displaceable spirals.
  • the outer spiral has the shape on each side of the card an elongated, curved wedge with a small wedge angle, the radial outer surface forms the sliding guide and its radially inner surface on the radial outer surface of the respective inner spiral slides.
  • the inner spirals also show each have the shape of an elongated, curved wedge, but are also open the radially inner side provided with teeth and can thus by means of a gear pair be rotated so that through the cooperation of the radially outer surface the inner spiral with the respective radially inner surfaces of the outer spirals the slide guides on both sides of the card can be adjusted simultaneously. As a result, all lids can approach the carding drum at the same time or removed from the same.
  • DE 29 48 825 A1 is also related to the adjustment of the flex arches a card of great interest. There it is recognized that the carding distance may change in operation, both due to strains caused by Centrifugal forces are caused as well as due to thermal expansion, which occurs at Warm up or cool down the card.
  • DE-A 29 48 825 expresses the fact that the temperature of those involved Cylinder increases over time until an equilibrium temperature is reached being, this temperature increase is a change in the dimensions of the cylinders and in particular causes an increase in the diameter of the drum. Both the influence of the centrifugal force and the influence of the temperature rise act not immediately when starting up the machine, but only after a certain time Time delay that, at least as far as the influence of centrifugal force is concerned long as the acceleration time of the elements involved, for the card e.g. of Drums, is.
  • DE-A 29 48 825 describes a control method of the employment relationships between two people who are equipped with a high-end set Working elements, for example the drum and the revolving cover of a revolving card, described in which one with the dimensions of the drum in one Directly related size recorded continuously or temporally and the Carding distance by a suitable control depending on the detected Size is kept at a certain value.
  • each adjustment device also has a locking mode in which an adjustable Clamping device is effective to achieve a setting once achieved by clamping maintain.
  • the individual adjustment devices are set to comparatively rigid constructions supported, such as the side frames of the card frame or on so-called fixed sheets, which in principle also form part of the side frames form the card frame.
  • the object of the present invention is a new device of the type mentioned Provide type that does not or only to a lesser extent under the disadvantages mentioned It suffers to a great extent, is inexpensive to manufacture and the carding gap is precisely adjusted enabled over the effective range of the overall adjustment.
  • each sliding guide has a sandwich-like configuration, with a radially inner support that is also divided into individual support areas can be divided into a radially outer, continuous flex bend, with a core area between the flex bend and the radially inner support, which is designed with one or more adjustment elements.
  • the device has a relatively low radial height, which is weight saves and accessibility for any measurements or adjustment work on the card elevated.
  • the adjusting element is designed as a piezo element that
  • the shape of one is at least essentially the whole May have length of the flex arc extending piezo element, which is used to generate of the required adjustment movements is formed in several layers.
  • piezo element extending along the entire guide arc can also use several, arranged side by side, separately or together controllable piezo elements are used, for example in the form of known piezotranslators are available.
  • piezoelectric adjustment devices could be used, so as described in German patent application 198 33 782.5.
  • the adjusting element can also be pneumatic actuatable element can be realized, for example in the form of an air pressure stretchable cushion element, which is elastic depending on the air pressure expands and merges again when the air pressure is reduced.
  • the pneumatically actuatable element can be at least partially through the radial inner support and the flex bend itself, if for example in one of the two elements is milled into an elongated groove into which a spring element of the other part protrudes and thus forms an air chamber that at the ends should be locked.
  • the adjusting element is this as a thermal expansion element train, for example in the form of a corrugated, heatable Sheet metal strip, which is fixed at the ends, so that an even thermal Elongation of the wavy element in the longitudinal direction to a corresponding enlargement the radial height of the shafts and therefore leads to a radial adjustment of the flexbow.
  • a thermal expansion element train for example in the form of a corrugated, heatable Sheet metal strip, which is fixed at the ends, so that an even thermal Elongation of the wavy element in the longitudinal direction to a corresponding enlargement the radial height of the shafts and therefore leads to a radial adjustment of the flexbow.
  • thermal expansion element is in forming this as a bimetallic strip, with a corrugated shape here too can be used. Due to the training as a bimetallic strip even more pronounced radial adjustments are possible. Individual leaf spring-like can also Bimetal elements between the radially inner support and the flex bend be used.
  • the adjustment elements can also be designed as spring elements and for example consist of several, individual small leaf springs. Such spring elements would tend to push the flex arch away from the radially inner support, then it is necessary to determine the distance between these two Split and therefore adjust the carding distance, exert forces on the flex bend, which are variable and thereby determine the degree of compression of the springs.
  • One way to generate these forces is to tension the drive belt or in the drive chain of the flat bars, because of change the resulting forces acting in the radial direction the flat bars and therefore on the flex bends are adjustable.
  • Another possibility would be to provide piston-in-cylinder arrangements that radially downstream exert internal forces on the flex bend.
  • the spring element consists of a polyurethane spring, which extends as a strip element along the radially inner side of the flexbow and is between this and the radially inner support.
  • a feather can be designed with high internal damping, so that vibrations can be prevented. Otherwise, damping elements, such as Friction dampers, are provided that prevent the flex bend starts to swing.
  • the radially inner support could be provided with side cheeks, which slide on the side walls of the flexbow, with a friction lining between the Sidewalls and the flex arch can be provided for damping purposes.
  • Fig. 1 shows a side view of a well-known revolving flat card 10, for example the card C50 of the applicant in a schematic representation.
  • the fiber material to be carded made from natural fibers or synthetic fibers or Mixtures of the same can exist in the form of dissolved and purified Flakes fed into the hopper 12 by a breeze or lickerin 14 as Cotton pad taken over, handed over to a drum or drum 16 and parallelized by a revolving cover set 18 which runs in opposite directions via deflection rollers 20, 22, 24, 26 is driven to the direction of rotation 28 of the drum 16.
  • Fibers from the nonwoven fabric located on the drum 16 are then removed from a Removed roller 30 removed and in a manner known per se in one of different Rolling existing outlet section 32 formed into a card sliver 34.
  • This Card sliver 34 is then cycloidal from a sliver storage 36 in a transport can 38 Art filed.
  • FIG. 2 and FIG. 3 show the card of FIG. 1 in the area of the revolving flat chain in on a larger scale and in more detail.
  • Flat bars 40 are shown, all of which are formed from a support body designed as a hollow profile 42, which carries the cover set 44, and two end heads 46, which are on respective Ends of the hollow profile-like support body are attached, for example so that they are inserted into the ends of the hollow profile and by a squeezing process that takes place in the EP-A-627 507 is described in detail, positively connected to the hollow profile become.
  • cover heads 46 and the drive belt driving them 48 are described in EP-A-753 610, the belt in particular 4 of this document can be formed.
  • the belt 48 is on one side, namely on the inner side in Fig. 2, with teeth 48A fitted with teeth 48B on the gears 20 and 26, only a few teeth 48A and 48B are shown for the sake of illustration however, understand that the entire inside of the belt 48 with teeth 48A and the entire circumference of the gears 20 and 26 provided with corresponding teeth 48B is. Further, bar-like teeth are located on the outside of the belt 48 or bars 49, which are arranged in pairs, here also for the sake of clarity only individual pairs 49 are shown and each tooth pair 49 in a corresponding one Recess 41 of a respective lid head engages, as in EP-A-0 753 610 is described in more detail.
  • the positive engagement between the drive belt 48 and the cover heads 46 transmits the tensile forces of the drive belt 48 to the flat bars 40, so that these just along the carding path between the entry point 50 and the exit point 56 be moved.
  • a special feature of the proposal according to EP-A-753 610 is that in the area of the deflection, the bars of the pairs of bars 49 of the drive belts 48 tend to spread apart and hold the lid heads 46 so that they around the Gears 20, 26 are deflected without the risk of the flat bars 40 are lost and without additional tours in these areas are necessary.
  • the flat bars 40 lie loosely on the upper side of the revolving lid 18 the upper run of the drive belt; they can easily be removed from the drive belt 48 can be solved, for example, if they are particularly cleaned or replaced should be. Gravity ensures that the flat bars 40 are in this area do not undesirably separate from the drive belt 48.
  • the flex arches 54 provide Slideways 52 for the card stock A between the cover sets 44 and the drum set 68 to set, for the sake of illustration only in sections Fig. 3 are shown, the sliding guides in this example with a respective recessed, band-shaped guide element 70 are made of plastic, that forms the sliding surface for the cover heads, as in DE-A-39 07 396 or in EP-A-0 620 296 is described in more detail.
  • such can be embedded Element or embedded, sectioned elements in all of the following Versions described in more detail according to the present invention to form the actual sliding surface 66 can be used for the cover heads 46. But it can such an element can also be dispensed with, in particular if the cover head is used is provided with a sliding shoe or sliding covering, which is usually made of metal Slideway slides.
  • each slide guide 52 also has a radially inner one Support 72, which is often called a fixed arch, each radially inner support 72 firmly connected to the associated side frame 74 of the card is or is integrally formed with it, for example in the form of a respective Casting.
  • the side frames 74 of the card also carry the axis of rotation 62 of the Drum (not shown in Fig. 3) and also form a radial guide for the flex bends 54 (not shown).
  • each radially inner support 72 and the flex bends associated therewith 54 are - as can be seen from FIGS. 2 and 3 - five in this example in the Length-adjustable devices 76, for example made of an inner, with an external thread provided part 78 and an outer, as a threaded sleeve with an inner thread trained part 80 exist.
  • Length-adjustable devices 76 for example made of an inner, with an external thread provided part 78 and an outer, as a threaded sleeve with an inner thread trained part 80 exist.
  • the length of the respective setting device 76 can be set in each case in the outer part 80 and thus a radial adjustment of the flexbend 54 in the area of respective support point.
  • curvature of the respective flexible flex bends 54 are adapted to the curvature of the drum and the radial position of the sliding surface 66 of the respective flex arches 54 can be set in such a way that the carding distance A over the entire length of the carding path and over the the entire width of the drum remains constant or - if desired - the desired Has course along the carding path.
  • FIG. 4 a first embodiment of an inventive Slideway 100 shown.
  • This has a sandwich-like design with a radially inner support 102 and a radially outer continuous Flexbow 104, being between the flexbow and the radially inner support Core region 106 is present, which has an adjusting element 108 in the form of a piezoelectric Adjustment device is executed.
  • the reference numeral 62 also indicates here Axis of rotation of the drum. 4 that the sliding guide 100 at least runs essentially concentrically to the axis of rotation of the drum 62, the Angular extent of the sliding guide 100 is approximately 100 °.
  • the radially inner support 102 can either be a part that corresponding to the radially inner support 72 of FIGS. 2 and 3 with the side frame the card is attached, this training then presupposes that the radial Outer surface 110 of the radially inner support 100 is already concentric with the Axis of rotation of the drum is aligned, or the desired orientation opposite the axis of rotation of the drum.
  • the piezoelectric adjustment element 108 serves then the fine adjustment of the sliding surface 112 of the flex sheet 104 on which the lid heads slide, in the sense that when the carding distance A changes due to centrifugal force and / or thermal expansion and / or wear and / or grinding processes a control or a regulation 114 the adjusting element 108 so controls that the sliding surface 112 of the flexbow by the same amount by the entire The length of the flexbow is adjusted radially.
  • the sliding surface 112 can be elongated strips or sections of an element, as previously in connection with the reference number 66 and in the EP-A-0 620 296
  • the controller 114 is designed as a regulation, a corresponding, known sensor technology (not shown) the carding distance A regularly or measured continuously and the adjusting element 108 controlled so that the measured The actual value of the carding distance A is always kept at a predetermined target value becomes.
  • the controller 114 may be from a higher-level controller, for example in the form of a microprocessor, receive control commands based on Experience allows a radial adjustment of the sliding surface 112, so that the Carding distance always has the desired setpoint.
  • the adjusting element 108 is a piezo adjusting device that takes up little space in the radial direction.
  • this piezo adjustment device 108 is made from a variety of strip-shaped, superimposed elements, each are provided with electrodes when suitable control voltages are applied a corresponding increase or decrease in the radial thickness of the strips caused.
  • the corresponding voltages are transmitted from the controller 114 to the Piezoelectric strips applied by means of lines 111, 113, which is schematic in Fig. 4 are indicated.
  • the adjustment range of the lifetime a card is required to carry out the necessary fine adjustments is a maximum of about 0.2 to 0.3 mm
  • the radially outer surface 110 of the radially inner support 102 due to appropriate processing the desired position in relation to the Axis of rotation of the drum or the circulation circle of the clothing tips 68 of the drum 16 has.
  • the radially inner support 100 itself must be radially adjustable, for which an arrangement according to FIGS. 2 and 3 could be used, for example. That means that the radially inner support 102 itself could be implemented as a kind of flex bend be and via radial adjustment devices such as 76 in Fig.
  • FIG. 6 shows an embodiment which is in principle the embodiment of FIGS. 4 and 5 is very similar, only be used here instead of an elongated, piezoelectric adjustment element 108 uses several individual piezoelectric adjustment elements 116, wherein 6 such adjustment elements are shown in the representation of FIG. 6. However, it can also be significantly more of such piezoelectric adjustment elements.
  • a radially inner support 102 and a radially outer flex bend 104 Application wherein the piezoelectric adjusting elements 116 form the core area and individual piezoelectric adjustment elements 116 a distance 118 from one another exhibit.
  • the box 114 also indicates a control or regulation with a direct current energy source 115 (here schematically in the form of a Battery is shown) and either measured values for the carding distance A from a corresponding measuring device or control commands from a higher-level Control - as described so far - receives.
  • a direct current energy source 115 here schematically in the form of a Battery is shown
  • the piezoelectric adjustment elements 116 are separate elements acts, they must all be controlled in parallel if a radial adjustment the radially outer sliding surface 112 of the flex bend 104 is sought. So go from the controller 114 from control lines 111 and 113 to the respective piezoelectric Adjusting.
  • the piezoelectric adjustment elements 116 can be simple stacks act several piezoelectric elements, each stack then in principle has the same expansion behavior as in the embodiment according to FIG. 5. Or it can be a special piezoelectric translator that works for you larger adjustment range are designed.
  • the piezoelectric drive arrangement according to the DE-A-198 33 782 it is also possible to part of the piezoelectric drive arrangement according to the DE-A-198 33 782 to take, for example, if such arrangements only for Fine adjustment can be used.
  • the piezoelectric drive arrangement on the piezoelectric elements with the yoke or on the piezoelectric Elements with the yoke and with the elastic strips are limited, so that only the first magnification level or the first and second magnification levels apply.
  • the piezoelectric elements can be controlled individually so that different radial adjustments to the respective Places along the flex sheet 104 can be made. Will the individual Piezoelectric adjustment elements 116 can only be used for fine adjustment they are controlled together, so that an even radial adjustment of the flexbow at the various points of attack of the piezoelectric adjustment elements 116 takes place.
  • FIG. 7 shows an arrangement which is very similar to the arrangement according to FIG. 6, wherein for the sake of clarity, the control device 114 with an energy source 115 and lines 111 and 113 is omitted.
  • the difference to the embodiment according to FIG. 6 is in principle in that the radially inner support 102 is not a continuous one Element is formed, but is divided into individual sections 102A, wherein in the variant shown, a piezoelectric adjusting element 116 each section 102A is associated with the radially inner support.
  • a piezoelectric adjusting element 116 each section 102A is associated with the radially inner support.
  • Adjustment elements 116 can be assigned to each section 102A, if so is desired by the designer for any reason.
  • the individual support elements 102A can be components of the side frames 74 one Card, or they can be radially adjustable according to the double arrows 120 the associated side frame 74 of the card and for example by means of clamping screws 122 after adjustment to the side frame 74 be clamped. This means that when making the card or when re-garnishing an adjustment in the direction of the double arrow 120, for example by a device such as 76 in Figs. 2 and 3 can be made. This initial setting can be set using the clamping screws 122. The further adjustment for fine adjustment of the flex sheet 104 is then by the piezoelectric elements 116 made.
  • FIG. 8 shows an alternative embodiment of a sliding guide 100 according to the invention, here also with a radially inner support 102 and a radially outer slide bend 104.
  • the core area 106 is designed with adjustment elements that are designed as respective cushion elements 124, each with a respective mutual Distance 119 from each other are arranged in the core area 106.
  • pillow elements are used. It can but also be more or less.
  • a single pillow element is in the figures 9 and 10.
  • Each element consists of upper and lower shell parts 126, 128, which are welded to one another in their edge regions 130 and which define a cavity 132 together.
  • This cavity 132 is via a pipeline 134 can be connected to a pressure source, with a corresponding control 114 the pressure level prevailing in the chamber 132 for each pillow individually or is adjustable together.
  • this cushion element expands 124 and thus leads to a radially outward adjustment of the Flexbow 104 and thus to a corresponding change in the carding distance A. If the pressure in the chamber 132 is reduced, the spring behavior leads to that for the Shells 126, 128 used sheet metal or material to reduce the height of the respective pillow, so that a radially inward adjustment of the flexbow 104 occurs.
  • the controller 114 can be designed in the sense of a regulation and the Carding distance based on measured actual values to a specified target value control or setpoint curve, or it can be designed so that it from a higher-level control receives corresponding commands and the carding distance A adapts to the prevailing circumstances, i.e. to the centrifugal force and thermal changes in the carding distance and changes the carding distance due to wear over time and due to Grinds to the desired value. That means the pillow elements can be used for fine adjustment.
  • the radially inner support 102 in the form of sections 102A according to FIG Fig. 7 can be realized.
  • the individual sections 102A can then, if necessary are designed to be radially adjustable in accordance with the embodiment according to FIG. 7.
  • cushion-like adjusting elements can also be piston-in-cylinder arrangements apply.
  • the embodiment according to the invention according to FIGS. 11 to 13 is concerned also by means of a pressure fluid, i.e. Compressed air or hydraulic fluid, adjustable device.
  • the flex bend 104 has a cross section a T-shaped shape, which is readily apparent from Fig. 12.
  • the radial inner support 102 on the other hand, has a U-shaped shape and thus has one radially outwardly open, U-shaped groove 136 into which the spring element 138 of the flexbow protrudes.
  • friction linings 148 and 150 On the side cheeks of the cross-sectionally U-shaped, radial inner support are friction linings 148 and 150, which on the corresponding Lying side surfaces of the spring element 138 and there a frictional force generate the vibrations of the flex bow 104 with respect to the radially inner Have support 102 avoided.
  • the flex bend 104 can be in the radial direction Direction away from the radially inner support 102 or towards the radially inner one Support to be moved.
  • the pressure prevailing in the chamber 144 can are controlled by a controller 114, with an increase in internal pressure in chamber 144, i.e. in the hose 146, to a radially outward displacement of the flex bow 104 leads.
  • a decrease in internal pressure due to the forces emanating from the lid heads leads to a radially inward displacement of the flexbow.
  • One way to do this is to measure the radial dimension of the flexbow 104 to vary along the flex curve 104, so under the prevailing forces it is deformed such that the sliding surface 112 always runs concentrically with the axis of rotation 62.
  • Another possibility is to use individual hose sections to distribute along the guide arc 104 and to control them separately.
  • the separate control there is also the possibility of the individual hose sections to be used in such a way that the basic setting when manufacturing the card or at This leads to re-garnishing and then to control the hose sections in such a way that the fine adjustment to compensate for deformations caused by centrifugal force, thermal expansion, wear or grinding is used.
  • the starting position of the flexbow is such that movements are possible in both directions (this Consideration applies to all embodiments). That means in the starting position must there is already a certain pressure in the pressure chamber 144.
  • FIG. 14 and 15 show a further embodiment of an inventive one Slideway 100.
  • this embodiment is located between the flex bend 104 and the radially inner support 102 in the core area 106 an adjusting element 160 in the form of a wavy bimetallic strip with heating element.
  • a section this bimetallic strip 160 is shown on a larger scale in FIG.
  • the bimetal strip lies in the core area 106 with its Ends at respective stops 168 and 170, so that when the temperature increases of the bimetal strip can not grow in length, but the radial one Waveform amplitude increases.
  • the flex bend 104 is adjusted radially, namely when the temperature rises radially away from the radially inner one Support 102, and when the temperature drops in the radially inward direction Direction towards the radially inner support 102.
  • the radially inner support 102 can also be used here are themselves radially displaceable and / or deformable and / or divided into segments, to enable the basic setting when manufacturing the card or when re-garnishing.
  • the temperature control of the bimetal strip is preferably carried out via an elongated one Resistance element 171, which extends along the entire length of the bimetal strip 160 stretches.
  • a current through the Resistor element 172 sent by the controller 114 which here either with a DC power source or, as shown, with an AC power source 115A is operated.
  • the reference numeral 174 indicates a temperature sensor that over a line 176 is coupled to the controller 14 and the actual value for the respective Temperature of the bimetal strip provides.
  • the controller 114 can therefore act as a regulator be trained and work in such a way that the bimetal strip is an actual temperature has a predetermined target temperature or a target temperature curve, where the target temperature or the target temperature curve with the desired Carding distance setting correlated.
  • Fig. 16 shows a modified embodiment, the principle of the embodiment 14 and 15 is very similar.
  • individual, leaf spring-like bimetal strip elements 160A of which there are a total of eight in the embodiment shown here, where other numbers of bimetal elements, i.e. more or less, without further ado possible are.
  • each bimetallic element has its own controller 114, so that the bimetal strips can be controlled individually.
  • the radially inner support 102 are easily formed in segments, accordingly the embodiment of Fig. 7.
  • the basic setting can be adjusted of the corresponding segments 102A can be reached.
  • the bimetallic elements can be used both the basic setting and the fine adjustment of the carding distance to realize, because with such bimetallic strips the required amplitude of movement is feasible.
  • FIG. 18 shows a sliding guide 100 according to the invention, which at first glance shows the Sliding guide of Fig. 16 is very similar. Only here it is the leaf spring-like Elements 180 not around bimetallic strips, but around simple leaf springs, as in Fig. 19 emerges.
  • the radial setting in this embodiment is only made about the tension of the drive belt 48. Should namely the sliding surfaces 112 of the Flex arches 104 are adjusted radially outwards, the tension of the drive belts reduced and these then exert 46 smaller forces on the cover heads the sliding surfaces 112 so that the leaf spring elements 180 can expand and the desired movement of the sliding surfaces 112 takes place radially outwards.
  • the position of the sliding surfaces 112 is adjusted radially inward, so the tension of the drive belt increases, for example by braking the axis of rotation 182 of the gearwheel 26 according to FIG. 2 (possibly with an increase in the torque on the Axis 60 of the gear 20), whereby the forces acting in the radial direction, the exerted by the lid heads on the flex bend 104, increase and the Desired adjustment of the sliding surface 112 is carried out radially inwards.
  • FIG. 20 shows a possible, modified embodiment of FIG. 18, in which Coil springs 190 are used instead of leaf springs 180, whereby several helical compression springs 190 are provided, which are distributed along the flex bend are arranged, as indicated by the radially extending dashed lines is.
  • FIG. 21 and 22 show a further embodiment of a device according to the invention Slideway 100, which is equipped with a spring element 200. It is about this spring element 200 around an elongated plastic element, for example Polyurethane, which is located in the bottom area of the groove 202 of a U-shaped flex bend 104 located.
  • the radially inner support is in cross section reversely T-shaped, the spring element 204 of the radially inner support 102 extends into the groove 202 of the flex bend 104 and the upper Page 206 of the spring element 204 there on the underside of the spring element 200 suppressed.
  • the control takes place in this embodiment - as in the embodiments 18 to 20 - by controlling the tension of the drive belt 48.
  • a reverse arrangement would also be possible, i.e. an arrangement in which the flexbow 104 a T-shaped cross section and the radially inner support 102 a Has a U-shaped cross section, as can be seen in principle, for example, from FIG. 12.
  • resilient elements be it pure spring elements or bimetal strips, it can be advantageous to provide friction dampers, so that the flex bows 104 do not tend to vibrate.
  • the friction dampers can have the form of friction linings, for example on corresponding cheeks of one element (radially inner support 102 or Flexbow 104) are attached and with corresponding friction surfaces on the cooperate with each other as shown at 148 and 150 in FIG. 12.
  • 23 and 24 show an embodiment of a sliding guide according to the invention 100, which works with adjusting elements 220 in the form of roller elements, which are electromagnetic be adjusted.
  • the radially inner support 102 has a wedge shape Elements 222 that cooperate with the roller elements 220. This namely touch on their underside the wedge-shaped elements 222 and on hers Top the radially inner side 224 of the flex bow 104.
  • the ends 206 and 208 of the respective roller elements 220 are in corresponding bores of respective side guide plates 210 or 212 arranged.
  • the plate elements 210, 212 can from a common pusher member 214 in accordance with the double arrow 216 clockwise or shifted counterclockwise along slide 104 be, the applied thrust from an electromagnetic Actuator 218 originate, which is controlled by a controller 114.
  • the electromagnetic actuator 218 can be a linear, electromagnetic Act motor, or it can also be a rotary drive, wherein the element 214 would then be designed as a threaded spindle with a nut element works together on a connecting bridge 215 of the two plate-shaped Elements 210, 212 attacks.
  • rollers 220 By moving clockwise, the rollers 220 become wedge-shaped Moving elements in the sense that the flex bend 104 is displaced radially outward becomes. On the other hand, a radially inward movement of the flexbow is intended 104 take place, the rollers 220 are counterclockwise along the Wedge surfaces moved, causing the flex bend 104 under the pressure forces of the flat bars (Dead weight of the flat bars plus radial tension component due to the Drive belt tension) is pressed inwards.
  • This embodiment is particularly suitable for fine adjustment. But it would be conceivable if the wedge-shaped elements can be moved in the radial direction would, for example by means of adjusting screws, which are located in the radial direction within of the radially inner support, this embodiment also for the Basic setting to use provided that the side plates 210, 212 a have some flexibility. In principle, one could also use any roller element 220 move separately from the other elements according to the double arrow 216, to achieve the basic setting and then all roller elements 220 Move evenly to bring about fine adjustment.
  • FIG. 25 shows a further embodiment of an inventive one Slideway 100, which works on the principle of a magnetic levitation train.
  • the Flex bow 104 namely has a plurality of permanent magnets 240, all of which are arranged in this way are that the north pole points radially inwards (or the south pole).
  • each permanent magnet 240 electromagnets 242 which are operated so that the radially outward pointing ends, i.e. the ends that are opposite in the permanent magnets 240, also represent north poles.
  • magnetic forces act between the radially inner support 102 and the flex bend 104, which are aimed at, the permanent magnets 240 and therefore the flex bend 104 in the radial direction from the radial inner support 102 to move away.
  • the electromagnets 224 which are partially shown only by dashed lines, consist of a magnetic core 226 made of a magnetizable material, such as soft iron, and a coil 248, which is controlled by a controller 114.
  • a controller 114 By control the strength of the current flowing through the coil 248 can be the strength of the magnetic forces are controlled between the electromagnets 242 and the permanent magnets 240 act.
  • the flex bend 104 differs from the radially inner one Support 102 further away due to these magnetic forces, the forces that are exerted on the flex bow 104 are reduced by the increasing gap width.
  • Each flex bend 104 finds its equilibrium position there when the forces, which emanate from the electromagnets 242, through the radially inward Forces which act on the sliding surface 112 (dead weight of the cover heads 46 and radial ones Belt tension component).
  • the electromagnet 242 can be controlled individually and air gaps of up to 3 mm are easily practicable, this embodiment can be used for both fine adjustment as well as for the basic setting. But here too the arrangement can be operated so that in the initial state a certain current flows through the respective electromagnets 242 so that both radially inward Movements of the flexbow 104 as well as radially outward movements possible are.
  • magnets 240 as permanent magnets to realize; these could also be designed as electromagnets. Accordingly could then replace the electromagnets 242 with permanent magnets become. There are also other arrangements of the repulsive or attractive forces generating magnets possible.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
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EP01116736A 2000-08-02 2001-07-19 Dispositif pour le réglage de l'espace de travail entre les pointes de la garniture de chapeau et les pointes de la garniture de cylindre de cardage d'une machine de cardage Withdrawn EP1178136A1 (fr)

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DE10037710A DE10037710A1 (de) 2000-08-02 2000-08-02 Vorrichtung zum Einstellen des Arbeitsspaltes zwischen den Spitzen von Deckelgarnituren und den Spitzen der Trommelgarnitur einer Karde
DE10037710 2000-08-02

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GB2372045A (en) * 2001-02-09 2002-08-14 Truetzschler Gmbh & Co Kg Displaceable slideway for a carding machine
WO2006119658A1 (fr) * 2005-05-11 2006-11-16 Maschinenfabrik Rieter Ag Machine de preparation de filature et procede de mesure sans contact
WO2007038891A1 (fr) * 2005-10-06 2007-04-12 Maschinenfabrik Rieter Ag Actionneur de chapeau
DE102007011370A1 (de) 2007-03-07 2008-09-11 H. Hergeth Gmbh Dynamisches Kardieren
DE102007011371A1 (de) 2007-03-07 2008-09-11 H. Hergeth Gmbh Karde zum Kardieren von Fasern mit bewegten Deckeln
WO2010102417A1 (fr) * 2009-03-10 2010-09-16 Maschinenfabrik Rieter Ag Cardeuse
WO2010102416A1 (fr) * 2009-03-10 2010-09-16 Maschinenfabrik Rieter Ag Cardeuse à chapeaux tournants
CH703251A1 (de) * 2010-06-02 2011-12-15 Rieter Ag Maschf Vorrichtung zur Einstellung eines Kardierspaltes in einer Wanderdeckelkarde.
WO2017158457A1 (fr) * 2016-03-17 2017-09-21 Maschinenfabrik Rieter Ag Élément fonctionnel
WO2017178148A1 (fr) * 2016-04-13 2017-10-19 TRüTZSCHLER GMBH & CO. KG Disposé sur une carde ou une machine de cardage
CN109097872A (zh) * 2018-11-07 2018-12-28 长兴瑞韬纺织科技有限公司 一种移动式纺织用品加工用梳棉机
WO2020216497A1 (fr) * 2019-04-25 2020-10-29 TRüTZSCHLER GMBH & CO. KG Cardeuse
WO2021078485A1 (fr) * 2019-10-23 2021-04-29 TRüTZSCHLER GMBH & CO. KG Machine de préparation de filature

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DE10305048B4 (de) * 2003-02-07 2014-02-06 Trützschler GmbH & Co Kommanditgesellschaft Vorrichtung an einer Karde zur Einstellung des Arbeitsabstandes zwischen der Trommel und mindestens einer benachbarten Walze
BRPI0410961A (pt) * 2003-06-03 2006-07-11 Rieter Ag Maschf superfìcie de suporte de elemento de suporte
CN100540766C (zh) * 2003-08-25 2009-09-16 特鲁菲舍尔股份有限公司及两合公司 用于棉、合成纤维等的梳理机中的设备，其中有至少一个具有梳理盖板针布的梳理盖板杆
BRPI0510179A (pt) * 2004-04-26 2007-10-02 Rieter Ag Maschf arco flexìvel
DE502005007705D1 (de) * 2004-04-26 2009-08-27 Rieter Ag Maschf Federvorrichtung für ein flexibelbogen
DE102004035771A1 (de) * 2004-07-23 2006-03-16 Trützschler GmbH & Co KG Vorrichtung an einer Karde mit einer Trommel, der Trommel gegenüberliegenden garnierten und/oder nichtgarnierten Elementen und ortsfesten Seitenteilen
DE102006014419B4 (de) * 2006-03-27 2021-04-15 Trützschler GmbH & Co Kommanditgesellschaft Vorrichtung an einer Spinnereivorbereitungsmaschine, insbesondere Karde, Krempel o. dgl., zur Einstellung des Kardierabstandes
DE102009009331A1 (de) * 2009-02-17 2010-08-19 TRüTZSCHLER GMBH & CO. KG Vorrichtung an einer Spinnereivorbereitungsmaschine, insbesondere Karde, Krempel o. dgl. zum Einstellen eines Arbeitsspaltes
DE102009009333A1 (de) * 2009-02-17 2010-08-19 TRüTZSCHLER GMBH & CO. KG Vorrichtung an einer Spinnereivorbereitungsmaschine, insbesondere Karde, Krempel o. dgl. zum Einstellen eines Arbeitsspaltes
DE102009031979A1 (de) * 2009-07-06 2011-01-13 TRüTZSCHLER GMBH & CO. KG Vorrichtung an einer Karde oder Krempel mit einer Trommel, Arbeitselementen und verstellbaren Halteelementen
CN101984160B (zh) * 2010-10-21 2012-04-18 慈溪市益体模具塑料有限公司 一种梳棉机用盖板托环
DE102019110670A1 (de) * 2019-06-06 2020-12-10 TRüTZSCHLER GMBH & CO. KG Karde mit einem Wanderdeckel
CN115216866B (zh) * 2022-08-23 2023-11-21 界首市双力线业有限公司 一种控制棉条均匀度的自动匀整机构

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GB2091003A (en) * 1980-11-24 1982-07-21 Davidson & Co Ltd Magnetic seal system
EP0094781A1 (fr) * 1982-05-12 1983-11-23 Carding Specialists (Canada) Limited Machines de cardage
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EP0519403A2 (fr) * 1991-06-21 1992-12-23 Rohm Co., Ltd. Tête d'impression à jet d'encre et imprimante à jet d'encre
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US6691373B2 (en) 2001-02-09 2004-02-17 TRüTZSCHLER GMBH & CO. KG Slide guide assembly for traveling flats in a carding machine
GB2372045B (en) * 2001-02-09 2004-08-11 Truetzschler Gmbh & Co Kg Arrangement at a carding machine for textile fibres comprising clothed card top bars
GB2372045A (en) * 2001-02-09 2002-08-14 Truetzschler Gmbh & Co Kg Displaceable slideway for a carding machine
WO2006119658A1 (fr) * 2005-05-11 2006-11-16 Maschinenfabrik Rieter Ag Machine de preparation de filature et procede de mesure sans contact
WO2007038891A1 (fr) * 2005-10-06 2007-04-12 Maschinenfabrik Rieter Ag Actionneur de chapeau
DE102007011370B4 (de) 2007-03-07 2018-06-14 H. Hergeth Gmbh Dynamisches Kardieren
DE102007011370A1 (de) 2007-03-07 2008-09-11 H. Hergeth Gmbh Dynamisches Kardieren
DE102007011371A1 (de) 2007-03-07 2008-09-11 H. Hergeth Gmbh Karde zum Kardieren von Fasern mit bewegten Deckeln
DE102007011371B4 (de) 2007-03-07 2018-06-14 H. Hergeth Gmbh Karde zum Kardieren von Fasern mit bewegten Deckeln
WO2010102416A1 (fr) * 2009-03-10 2010-09-16 Maschinenfabrik Rieter Ag Cardeuse à chapeaux tournants
CN102348840A (zh) * 2009-03-10 2012-02-08 里特机械公司 梳理机
CN102348840B (zh) * 2009-03-10 2014-10-08 里特机械公司 梳理机
WO2010102417A1 (fr) * 2009-03-10 2010-09-16 Maschinenfabrik Rieter Ag Cardeuse
CH703251A1 (de) * 2010-06-02 2011-12-15 Rieter Ag Maschf Vorrichtung zur Einstellung eines Kardierspaltes in einer Wanderdeckelkarde.
WO2017158457A1 (fr) * 2016-03-17 2017-09-21 Maschinenfabrik Rieter Ag Élément fonctionnel
WO2017178148A1 (fr) * 2016-04-13 2017-10-19 TRüTZSCHLER GMBH & CO. KG Disposé sur une carde ou une machine de cardage
CN109097872A (zh) * 2018-11-07 2018-12-28 长兴瑞韬纺织科技有限公司 一种移动式纺织用品加工用梳棉机
WO2020216497A1 (fr) * 2019-04-25 2020-10-29 TRüTZSCHLER GMBH & CO. KG Cardeuse
WO2021078485A1 (fr) * 2019-10-23 2021-04-29 TRüTZSCHLER GMBH & CO. KG Machine de préparation de filature

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DE10037710A1 (de) 2002-02-14

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