US20020152585A1 - Device and method for adjusting the work gap between the points of flat clothings and the points of the cylinder clothing of a card - Google Patents

Device and method for adjusting the work gap between the points of flat clothings and the points of the cylinder clothing of a card Download PDF

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Publication number
US20020152585A1
US20020152585A1 US10/000,853 US85301A US2002152585A1 US 20020152585 A1 US20020152585 A1 US 20020152585A1 US 85301 A US85301 A US 85301A US 2002152585 A1 US2002152585 A1 US 2002152585A1
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United States
Prior art keywords
sliding
sliding guides
points
drum
supporting
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Abandoned
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US10/000,853
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English (en)
Inventor
Olivier Wust
Rene Schmid
Christoph Staheli
Gotz Gresser
Christian Sauter
Jurg Faas
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Maschinenfabrik Rieter AG
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Maschinenfabrik Rieter AG
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Assigned to MASCHINENFABRIK RIETER AG reassignment MASCHINENFABRIK RIETER AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SAUTER, CHRISTIAN, WUST, OLIVIER, GRESSER, GOTZ THEODOR, FAAS, JURG, SCHMID, RENE, STAHELI, CHRISTOPH
Publication of US20020152585A1 publication Critical patent/US20020152585A1/en
Abandoned 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 concerns a device and a method for adjusting the work gap between the points of the flat clothings and the points of the cylinder clothing of a card, whereby the flat bars provided with clothings are led across a partial area of the drum circumference on both sides of the card on respective sliding guides with convex bent sliding surfaces, whereat the flat bars are furnished with flat heads with sliding surfaces, which slide along the sliding guides, where the sliding guides are being formed by a bent part each and where the radial position of the sliding surfaces of the sliding guides related to the axis of rotation of the drum is changeable by changing the local position of the parts.
  • the old U.S. Pat. No. 528,007 of 23.10.1894 describes a revolving flat card, with which the flat bars provided with flat clothings are fastened to respective endless chains on their ends and are pulled on both sides of the card by means of these endless chains being furnished with sliding guides, so that the clothing points are moved relatively to the clothing points of the drum at a constant distance of this over a partial area of the circumference of the drum and thereby carry out the desired carding work.
  • guides the flat bars are diverted around a pair of chain wheels and led back to a further chain wheel, which also serves as a diverter, end-up again on the sliding guides, so that they can carry out the desired carding work again with the clothing points of the drum.
  • the flat bars arrive again and again on the sliding guide and carry out carding work repeatedly with the drum.
  • the sliding guide at the card is being displaced radially in relation to the axis of rotation of the drum, in order to keep the desired carding distance.
  • the sliding guides are designed as so-called flex bends, which are, according to the US patent specification, attached at three different points by means of adjustment rods on the side frames of the carding frame.
  • the three points at which the adjustment rods engage with the flex bends can be adjusted in each case radially in relation to the carding frame and therefore to the drum axis, whereby it is to be understood that with the radial adjustment on three circumferentially distributed points, the bending of the flex bends, i.e. the sliding guides, is slightly changed, that is a bending of the flex bends takes place.
  • the adjustment rods on their far end, that is not facing the flex bends are not fastened directly to the side frames of the carding frame, but on the respective knee levers, which are rotatably mounted on the side frames of the carding frame.
  • the other arms of the respective knee levers are connected with one another and with an adjusting wheel by respective tie bars, so that by turning of the adjusting wheel, a general adjustment of the knee levers takes place and thus, by means of the adjustment rods of the respective engagement points of the adjustment rods on the flex bends.
  • a change of adjustment of the flex bends is not only necessary due to wear of the flat clothings and/or the cylinder clothings, but also after grinding of the cylinder clothing and/or the flat clothings.
  • the outer spiral on each side of the card has the form of an elongated, curved wedge with a small wedge angle, whose radially outer surface forms the sliding guide and whose radially internal surface slides on the radially outer surface of the respective internal spiral.
  • the inner spirals also have each the form of an elongated, curved wedge, however, on the radially internal side they are additionally provided with teeth, and can thus be rotated by means of a gear set around the axis of the drum, so that with the co-operation of the radially outer surface of the internal spiral with the respective radially internal surfaces of the outer spirals, the sliding guides on both sides of the card can be adjusted at the same time.
  • Such elongations i.e. due to centrifugal force or thermal cause, are, as is described in more detail in the DE A 29 48 825, particularly problematic during start-up or stopping of the card.
  • the tendency to increase the production rate of cards on the one hand leads to the fact that the number of revolutions of the processing elements is increased and on the other hand, that the dimensions of the machine cylinders become larger, both the diameter and the working width.
  • an undesired deformation of the cylinders i.e. bulging caused by centrifugal force can take place whereat said bulging increases gradually.
  • the DE-A 29 48 825 describes a method to control the operating condition between two operating components equipped with clothing of points, for example the drum and the revolving flats of a revolving flat card, where a value being directly related to the dimensions of the drum is continuously or temporarily recorded and by means of a suitable regulating device the carding distance is held at a defined value in dependence of the recorded value.
  • the adjusting range for all even adjustments (according to b), c) and d)) usually lies within the range of 0,2 to 0.3 mm.
  • the individual adjustment devices are supported on comparatively rigid structures, such as the side frames of the carding frame, or on so-called fix bends which in principle also form part of the side frames of the carding frames.
  • This task is solved in that the parts forming the sliding guides, each is supported at several discrete supporting points and in relation to the supporting points are shiftably arranged around the axis of rotation of the drum, whereby the sliding surfaces of the sliding guides are movable in radial direction for adjusting the work gap.
  • a first concrete possibility to realize the change of the local position of the parts forming the sliding guides consists of providing each of these parts as an oblong, bent wedge and of realizing the supporting points by fixedly arranged support noses.
  • the sliding guides are provided as oblong, bent wedges and/or spiral-shaped guides, however to save costs it is done without the second wedge, which co-operates with the wedge-shaped part and/or the respective spiral part. Instead at suitable supporting points fixedly arranged supporting noses are provided. If the sliding guide designed as oblong, bent wedge is shifted around the axis of rotation of the drum and in relation to the supporting noses, then the sliding surface of the sliding guide is shifted in radial direction, whereat a micro-adjustment is made possible according to the above mentioned points b) to d).
  • the supporting noses are fixedly arranged, they can be arranged for ensuring of a coarse adjustment and/or a new adjustment according to point a), first being shiftably arranged in radial direction in relation to the side frames of the card and after performance of the coarse adjustment for example by tightening respective clamping screws, whereat they then are not being adjusted any more for the further operation of the card, unless a new coarse adjustment due to a new clothing and/or an exchange of the drum or of the revolving flat is necessary.
  • Shifting of the oblong, bent wedge around the axis of rotation of the drum can be realized in various ways, as in all the following examples being provided with respective means for movement.
  • a controllable piston-cylinder arrangement can be attached at an end of each oblong, bent part, whose piston rod can be shifted outward and/or inward for obtaining the necessary adjustment.
  • Such a piston-cylinder arrangement can also be replaced by a spindle drive arrangement, whereat either the spindle or the spindle nut can be propelled by a stepping motor, in order to provide the necessary adjustment.
  • a toothed section can be provided on the oblong, bent wedge and can be engaged by a pinion being propelled by a stepping motor.
  • the supporting points can also be formed by stationary, however rotatably arranged rolls, which rotate around respective axes of rotation, which extend parallel to the axis of rotation of the drum.
  • Such rolls which are available at reasonable prices in the form of ball bearings, have the big advantage that an exact adjustment with relatively small forces can be achieved, since the rolls unreel for example on the radial inner surface of the oblong, bent parts, so that no substantial friction forces are to be overcome there.
  • the rolls can first be shiftable in radial direction, in order to accomplish a coarse adjustment.
  • the axle journals, on which the rolls are rotatably mounted can be arranged in such a way, that they are radially shiftable and can be clamped in relation to the side frames of the card.
  • a further possibility to accomplish the desired radial adjustment of the sliding surfaces of the sliding guides consists of designing the supporting points as rotatable snail-formed cams.
  • This embodiment offers the possibility, by adjusting of the respective snail-formed cams, to first obtain the desired coarse adjustment and thereafter to clamp the cams in their respective rotary positions. Thereafter the shifting of the oblong, bent parts, forming the sliding guides, around the axis of rotation of the drum and over the supporting surfaces of the cams is being utilized, in order to perform a fine adjustment according to the points b), c) and d). In order to realize this, the oblong, bent parts must be of wedge shape, to thus effect the necessary radial adjustment at all points along the oblong, bent parts.
  • a further variant of the embodiment with rotatable snail-formed cams consists of furnishing the sliding guides with teeth which comb the snail-formed cams with teeth, whereby a shift of the sliding guides around the axis of rotation of the drum leads to a rotation of the snail-formed cams around their respective axis, running parallel to the axis of rotation of the drum and therefore to a radial shift of the sliding surfaces of the sliding guides.
  • the oblong, bent parts be designed as wedges, but they can have a constant radial thickness, since the radial adjustment of the sliding surface takes place due to the turning of the snail-formed means on the supporting points.
  • the arrangement can also be in such a way that the radial adjustment of the sliding surfaces takes place both due to the turning of the snail-formed means as well as due to the shift of a wedge-shaped oblong part.
  • said snail-formed means can, for the performance of a coarse adjustment according to point a), at first be shifted in axial direction, so that the teeth of the snail-formed means become disengaged from the teeth of the sliding guides of the oblong parts, and then again can be re-engaged with the teeth of the oblong parts, so that a respective radial adjustment at each snail-formed cam is possible. Thereafter, the shift of the oblong parts, forming the sliding guides, around the axis of rotation leads to the fact that a common radial adjustment of the sliding surfaces of the sliding guides on all supporting points takes place at the same time.
  • each sliding guide in such a way, in that at each of those points, which correspond with the supporting points, it carries a step-shaped ramp whose steps, depending upon the respective turning position of the part around the axis of rotation of the drum, work together with the supporting noses forming the supporting points, in order to determine the radial position of the sliding surfaces of the sliding guides.
  • the coarse adjustment is accomplished according to point a) by the fact that the part is positioned in such a way in the circumferential direction that the suitable steps cooperate with the supporting points, for example with supporting noses being provided there. Thereafter a small adjustment of the supporting noses can still be necessary, in order to accomplish the coarse adjustment with the desired accuracy, however, a short adjusting distance is sufficient to accomplish the necessary coarse adjustment.
  • the supporting points could be formed by rotatable snail-formed cams, whereby the range of the radial adjustment (fine or coarse adjustment) can be increased.
  • This embodiment does not require a wedge-shaped design of the oblong, bent sliding guides, but these can be made with a constant radial thickness—they must only have a sufficient flexibility as has been mentioned above. If the oblong, bent parts are designed as wedges, then the single stage surfaces of the step-shaped ramps form parts of circle-cylindrical surfaces, with a center at the axis of rotation of the drum, since the radial adjustment is then reached by the wedge form of the oblong, bent parts.
  • the stage surfaces of the step-shaped ramps can be inclined in relation to the circumference surface of the drum, so that the inclined form of the stage surfaces provides the necessary radial adjustment.
  • a mixed solution is also possible, in which both a wedge-shaped design of the oblong, bent parts and an inclined arrangement of the stage ramps are provided, whereby a distinct radial adjustment with a relatively small circumferential movement is possible.
  • rotatable supporting members can also be provided, each comprising at least two supporting surfaces, whereat each one has a different radial distance from the axis of rotation of the respective spacer member.
  • the supporting surfaces can be adjusted gradually radially in order to achieve at least a coarse adjustment according to point a). If then the axes of rotation of the supporting members are made adjustable within a small radial range, the coarse adjustment can take place with the desired accuracy according to point a). Thereafter the fine radial adjustment is accomplished by adjustment of the present wedge-shaped oblong, bent sliding guides.
  • supporting members which comprise at least two supporting surfaces, each of which is designed as a bent ramp, whereby the supporting surfaces merge with one another via respective radial steps.
  • the supporting members can be turned to perform the coarse adjustment according to point a) in such a way that the respective attached ramp takes over the supporting function and they can then be turned further or turned back, in order to accomplish coarse adjustment exactly according to point a). Thereafter the fine adjustment is accomplished according to point b) to c) by shifting the wedge-shaped oblong, bent sliding guides. Also in this embodiment there is the possibility to design the oblong, bent parts with a constant radial thickness and perform the fine adjustment according to point a), b) and c) by common rotation of the individual supporting members.
  • each part that formes a sliding guide is designed as two separate sections being arranged behind each other around the axis of rotation of the drum, each of which is connected swivably at its facing ends on a common radially adjustable support and is supported at its respective other remote ends via respective radially adjustable supports.
  • the oblong parts which form the sliding guides, are in each case designed as two-piece parts. Thereby it is possible to adjust the flat output side separately from the flat intake side, whereby the adjustment takes place here only via radial adjustments at the respective support points.
  • the dividing the oblong parts into two parts it is made possible, through different radial adjustments at the points of adjustment, to achieve a good adaptation of the desired cylindrical sliding surfaces without the need of deforming the bent parts.
  • a further embodiment according to invention consists of furnishing the oblong, bent parts forming the sliding guide, each with a heating device which is able to warm-up the parts over the entire length to fixedly clamp the oblong part at both ends and bend this by the length variation arising due to the thermal expansion and to thus change the radial position of the sliding surface of the respective sliding guides.
  • a heating device which is able to warm-up the parts over the entire length to fixedly clamp the oblong part at both ends and bend this by the length variation arising due to the thermal expansion and to thus change the radial position of the sliding surface of the respective sliding guides.
  • a particularly distinct deflection of the oblong parts can be accomplished if these are made as oblong bimetallic strips.
  • the parts forming the sliding guides each is designed as continuous double wedge and has a larger radial depth in the medium longitudinal section than in their respective end sections. In this way it can be ensured that the radial adjustment remains at least essentially constant along each sliding guide. It would, however, also be possible to provide the oblong, bent parts with a constant radial dimension over their entire length, that is, as long as the radial adjustment of individual points along the surface of the oblong parts remains within acceptable limits.
  • FIG. 1 a schematic illustration of a conventional card
  • FIG. 2 a side view of the card of FIG. 1 within the area of the revolving flat for closer description of the basic embodiment
  • FIG. 3 a schematic cross section within the area of the revolving flat of a card, seen at the cutting plane III-III of FIG. 2, whereby the illustrations of the FIGS. 1, 2 and 3 are shown in different scales,
  • FIG. 4 a schematic side view of a sliding guide for a card with a flat head sliding thereon which is designed in accordance to EP-A-0 753,610,
  • FIG. 5 a schematic side view of an adjustable sliding guide for a card
  • FIG. 6 an illustration similar to FIG. 5, however referring to a embodiment according to a further invention
  • FIG. 7 a further illustration similar to FIG. 5 of a further embodiment of a sliding guide for a card according to the invention
  • FIG. 8A an illustration similar to the FIG. 5, however on a different embodiment for a sliding guide for a card according to the invention
  • FIG. 8B an enlarged illustration of one of the supporting members of the illustration according to FIG. A
  • FIG. 9A an illustration similar to the FIG. 8A, however with snail-formed design of the supporting members
  • FIG. 9B an enlarged illustration of the snail-formed supporting members of FIG. 9 a
  • FIG. 10 a side view of a further sliding guide for a card according to the invention, which can, for example, be applied in connection In the embodiment according to FIG. 7, 9 or 11 ,
  • FIG. 11 an illustration similar to the FIG. 5, however of a still further embodiment according to the invention.
  • FIG. 12 A schematic side view of a sliding guide for a card, divided into two parts according to the invention, whereby
  • FIG. 12B shows a detail in the area of the overlapping ends of the two parts of the sliding guide
  • FIG. 13 a further schematic side view of a sliding guide for a card according to the invention, for which guide the adjustment of the sliding surface is obtained by means of heat supply, and
  • FIG. 14 a side view of a further embodiment of a sliding guide for a card according to the invention, which can be applied for example in the embodiment according to FIG. 13.
  • the fibre material for carding which can consist of natural fibres or synthetic fibres or mixtures of the same is fed, in the form of dissolved and cleaned fibre flakes, into the filling chute 12 , taken over by a licker-in or taker-in 14 as cotton wool, handed over to a tambour and/or a drum 16 , and is paralleled by a revolving flat set 18 which is driven over diverting rolls 20 , 22 , 24 , 26 in opposite direction of the direction of rotation 28 of the tambours 16 .
  • Fibres of the fibre band being on the tambour 16 are then removed by a doffing roller 30 and in an actually known manner they are formed into a card sliver 34 by way of different rollers within the existing discharge zone 32 .
  • This card sliver 34 is then deposited by a sliver layer 36 in cycloidal manner into a transportation can 38 .
  • FIG. 2 and FIG. 3 show the card of FIG. 1 within the zone of the revolving flat chain in a larger scale and in further detail.
  • flat bars 40 consist of a carrying body 42 formed as a hollow profile which carries the flat clothing 44 and two end heads 46 which are fastened to the respective ends of the hollow-profile carrying body, for example in such a way that they fit into the ends of the hollow profile and that they are connected by a squeezing method which is described in detail in the EP-A-627,507 in order to create a positive connection with the hollow profile.
  • the belt 48 is furnished on one side, that is on the internal side in FIG. 2, with teeth 48 A, which mesh with teeth 48 B on the gear wheels 20 and 26 , whereat, for simplification of the illustration, only a few teeth 48 A and 48 B are shown, it is, however, understood that the entire inside of the belt 48 is furnished with teeth 48 A and the entire circumference of the gear wheels 20 and 26 is provided with respective teeth 48 B.
  • the sliding surfaces 64 of the flat heads 46 lay within the zone of the flex bends 54 , in sliding contact with them, that is, on the one hand due to their own weight and on the other hand due to the tension of the belt, which, within the zone of each flat head, generates a radially inward directed force. In other words they get pressed onto the sliding guide 52 , i.e. onto the sliding surface 66 of the flex bends 54 , on the one hand due to their own weight and on the other hand due to the tension in the driving belts 48 . Thereby the necessary carding space A (FIG. 3) between the flat clothings 44 and the cylinder clothing 68 is ensured.
  • the flat bars 40 Due to the positive engagement of the pairs of bars 49 of the driving belt 48 into the corresponding recesses 41 of the flat heads and due to the synchronized running of the driving belts 48 on both sides of the card, the flat bars 40 are moved synchronously over the two flex bends 54 , whereat the longitudinal axes of the flat bars are always led parallel to the drum axis.
  • a particular characteristic of the suggestion according to the EP-A-753 610 is based on the fact that within the diverting zone the bars of the pairs of bars 49 of the driving belts 48 tend to spread apart and hold the flat heads 46 in such a way that these are diverted around the gear wheels 20 , 26 , without the danger of the flat bars 40 being lost and without the need of additional guidance within this zone.
  • the flat bars 40 are lying loosely on the upper strands of the driving belts; thus they can easily be detached from the driving belt 48 , particularly if, for example they need to be cleaned or replaced.
  • the force of gravity makes sure that the flat bars 40 in this zone do not separate from the driving belts 48 in an undesired manner.
  • the flex bends 54 of the sliding guides 52 define the carding space A between the flat clothings 44 and the cylinder clothing 68 which, for the simplification of the illustration, is only partially shown in FIG. 3, whereat in this example the sliding guides are furnished with a respective embedded, strip-shaped guiding element 70 made of plastic which forms the sliding surface for the flat heads as is more closely described in the DE-A-39 07 396 or in the EP-A-0 620.
  • a respective embedded, strip-shaped guiding element 70 made of plastic which forms the sliding surface for the flat heads as is more closely described in the DE-A-39 07 396 or in the EP-A-0 620.
  • such an embedded element or such embedded elements respectively, being divided into sections can be applied in all the embodiments being described more closely in the following and, according to the present invention are used to form the actual sliding surface 66 for the flat heads 46 to be used.
  • each siding guide 52 is also provided with a radially inner support 72 which is frequently called fix bend, whereat each radially inner support 72 is firmly connected with the respective assigned side frame 74 of the card or is an integral part of it, for example, in the form of a respective cast part.
  • the side frames 74 of the card also carry, in addition, the axis of rotation 62 of the drum (not shown in FIG. 3) and also form a radial guidance for the flex bends 54 (not shown).
  • each radially inner support 72 and the flex bends 54 assigned to it there are provided—as can be seen from the FIGS. 2 and 4—lengthwise adjustable, in this example five, mechanisms 76 which, for example, consist of an inner part 78 provided with external thread and an outer part 80 provided as a threaded sleeve with internal thread.
  • the length of the respective adjusting mechanism 76 can be set and thus a radial adjustment of the flex bends 54 within the zone of the respective supporting area can be accomplished.
  • the curvature of the respective flexible flex bends 54 can be adapted to the curvature of the drum and the radial position of the sliding surface 66 of the respective flex bends 54 can be set in such a way that the carding space A remains constant over the entire length of the carding path and over the entire width of the drum or—if desired—that it has a desired course along the carding path.
  • FIG. 5 shows, in a side view a first embodiment according to the invention of a sliding guide 152 which is designed as oblong bent wedge which has a larger radial dimension at its right end of 153 than at its left end of 155 , whereby the sliding guide 152 has a constant wedge angle over its entire length.
  • the wedge 152 is supported on three supporting points 157 , all of which are formed by fixedly arranged supporting noses 159 each of which is fixedly bolted with two clamping screws 161 onto the side frame of the card.
  • the sliding guide 152 there is an adjustment device in the form of a piston-cylinder unit 163 whose cylinder is supported on one end 165 on the side panel of the card and whose piston rod 167 is connected on the right end side 153 of the sliding guide 152 .
  • the adjustment device 163 is laid out for shifting of the sliding guide 152 around the axis of rotation 175 of the drum according to the double arrow 169 .
  • the clamping screws 161 can be loosened and the supporting noses 159 be shifted in radial direction according to the arrows 181 .
  • the card can be put into operation and possible necessary micro-adjustments, according to the points b), c) and d) above which are required during the operation, can be performed by shifting of the sliding guide 152 according to the double arrow 169 .
  • a threaded spindle and a spindle nut driven by a stepping motor or a linear electric drive or a pneumatic driving device could be applied.
  • a toothed segment (not shown) could be fastened on the sliding guide 152 and could mesh with the pinion which is driven by a stepping motor in order to perform the adjustment according to the double arrow 169 .
  • FIG. 6 is very similar to the embodiment according to FIG. 5, thus the same parts are designated here with the respective same reference numerals, however, with the basic number 200 in order to have a distinction in comparison to the embodiment according to FIG. 5. It is understood that the description supplied for FIG. 5 also applies to the correspondingly numbered parts of the FIG. 6, unless explicitely stated otherwise, whereby this convention also applies to all further embodiments, where other basic numbers are applied.
  • the supporting points In the embodiment according to FIG. 6 are here defined by means of rotatable rolls 275 which can, for example, be designed as ball bearings.
  • Each roll 273 is arranged around an axis of rotation 277 , designed as an axle journal, to be rotatable in both directions according to the double arrow 279 .
  • Each axle journal 277 is arranged radially shiftable in relation to the side frame of the card according to the double arrow 281 in order to perform the coarse adjustment according to point a) above.
  • the sliding guide 252 is moved in order accomplish the fine adjustment according to point a), c) and d) above, due to the wedge-shaped design of the sliding guide 252 . It is realizes that the axle journals 277 forming the axis of rotation for the rotatable rolls 273 are arranged to run parallel to the axis of rotation 275 of the drum.
  • step-shaped ramps 383 are provided on each of the individual supporting points 357 on the lower surface of the sliding guide 352 which are supported by supporting members 359 being furnished with supporting noses.
  • these supporting members 359 are dimensioned somewhat smaller than in the embodiment according to FIG. 5 they are, however, like-wise adjustably mounted with clamping screws 361 on the side frame of the card.
  • the three step type surfaces of the step-shaped ramp 383 serve as alternative possibilities for the positioning of the sliding guide 352 for the coarse adjustment according to point a) above.
  • the individual surfaces of the steps as for example 385 , lay on a cylindrical surface concentrically to the axis of rotation 375 of the drum. That means that when shifting in the direction of the double arrow alone, the wedge form of the sliding guide 352 ensures the necessary radial shift of the surface of the wedge between the points 371 and 373 .
  • FIG. 8 shows an embodiment which in principle is similar to the one in FIG. 7, with the only difference that supporting members 483 are used here which are rotatably arranged around respective axes of rotation of axle journals 477 .
  • each supporting member 483 is furnished with four differing supporting surfaces 485 , (see also FIG. 8B), which in each case have the same radial distance over their entire section length from the imaginary axis of rotation 489 of said supporting members.
  • the supporting members 483 can thus, for performing of the coarse adjustment according to point a), be turned around the axis of rotation 489 , i.e. around the axle journals 477 into a position, where the suitable supporting surface 485 is applied.
  • the axle journals 477 of the supporting members 483 can also be shifted radially according to the double arrow 481 in relation to the axis of rotation 475 of the drum. Due to the wedge-shaped design of the sliding guide 452 , and by shifting the sliding guide 452 according to the double arrow 469 , the necessary radial adjustment of the sliding surface of the sliding guide between the positions 471 and 473 takes place. Thereby the supporting members 483 can remain either stationary or turn according to the double arrow 485 according to the rotatable rolls according to the embodiment in FIG. 6 and thereby substantially reduce the developing friction forces.
  • FIGS. 9A and 9B in principle show a similar embodiment only that here the supporting members 583 are applied in the form of stepped, snail-formed cams.
  • the respective suitable supporting surface 585 for the coarse adjustment according to point a), whereby, beyond that, the ramp-like form of the individual supporting surfaces 585 makes it possible, by turning of the respective supporting members 583 within the angular range of the supporting surface 585 (approximately 90° in the shown illustration), to perform this coarse adjustment very accurately according to point a). Thereafter the supporting members 583 are clamped in their respective turning position and the fine adjustment according to points b), c) and d) is accomplished by shifting the sliding guide 552 according to the double arrow 569 .
  • the sliding guide 552 here also has the form of an elongated wedge so that, by shifting according to the double arrow 569 , the radial outside surface of the sliding guide 552 can be displaced between the ranges 571 and 573 .
  • the sliding guide 652 according to FIG. 10 can be applied. If this takes place, then one can do without the linear adjustment device 563 and the respective turning of the snail-formed cams 583 according to the double arrow 587 is applied in order to perform the fine adjustment according to the points b), c) and d).
  • each snail-formed cam 783 is used as supporting members 783 which also here are rotatably arranged around respective axle journals 777 .
  • the outer surface of each snail-formed cam 783 is provided with teeth 789 which are shown in FIG. 11 over only a short portion of the cam surface of the snail-formed cams, however in practice, preferably the entire cam surface of the snail-formed cams is being provided with teeth.
  • These teeth 789 mesh with corresponding teeth 791 on the radially inner side of the sliding guide 752 , which are provided there only in sections, which however, can be provided over the entire length.
  • the sliding guide 752 is shown as wedge-shaped sliding guide, it can however, be designed in exactly the same way as the sliding guide 652 according to the FIG. 10, if it is provided with the necessary teeth, as is shown here with 791 .
  • the arrangement is preferably carried-out in such a way that the snail-formed supporting members 783 can be shifted in axial direction of the axle journals 777 until the teeth 789 are no more in combing engagement with the flex bend 752 .
  • the snail-formed supporting members can be turned around the axis of rotation of the axle journals 777 and can be reengaged with the teeth 791 of the sliding guide 752 by axial shifting. Thereby the coarse adjustment according to point a) above is performed. The fine adjustment according to the points b), c) and d) takes then place by shifting the sliding guide 752 according to the double arrow 769 which leads to a turning movement of the supporting members according to the double arrows 789 .
  • each sliding guide 852 is provided in the form of two separate sections 852 a and 852 b following each other around the axis of rotation of the drum, said sections being swivably linked at 895 with each other with their facing ends 853 a and 853 b on a common radially adjustable support 893 .
  • these sections 852 a and 852 b each are supported via respective radially adjustable supports 897 a and 897 b .
  • the two separate sections 852 a and 852 b are designed in such a way that they overlap and/or engage into one another with their end portions.
  • the arrangement can be accomplished in such a way that for each section at least one further, radially adjustable support is provided (not shown) which however is being provided between the common support 893 and the supports 897 a and 897 b located at the end of a respective section 852 a and 852 b.
  • the oblong, bent parts, forming the sliding guides 952 are furnished each with a heating mechanism 999 which is able to warm-up the part over the entire length.
  • Each oblong part is fixedly clamped on its two ends and bends increasingly due to the length variation arising through thermal expansion, whereby the radial position of the sliding surface of the respective sliding guides 952 is alterable depending upon to heat supply.
  • the heat supply is determined by the control 1001 which is equipped with a temperature sensor 1003 in order to be able to detect whether the sliding guide has reached the desired temperature and therefore the desired degree of bending. If necessary the control 1001 can be provided as a regulation means.
  • Each part 952 can, if desired, be provided as oblong bimetallic strip where a distinct bend of the sliding guides is attainable at lower temperatures.
  • the parts for forming the sliding guides 952 can each be provided as a continuous double wedge as is shown in FIG. 14 with 952 ′, i.e. in such a way that, within the middle longitudinal area, the sliding guide has a larger radial depth than within each of the respective distant end areas.
  • This design ensures that the sliding guides, when bending due to the heat generation, experience an even radial adjustment over their entire length.
  • the parts for forming the sliding guides can each have a constant radial dimension over its entire length as is illustrated with 652 in FIG. 10.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
US10/000,853 2000-10-27 2001-10-24 Device and method for adjusting the work gap between the points of flat clothings and the points of the cylinder clothing of a card Abandoned US20020152585A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10053448A DE10053448A1 (de) 2000-10-27 2000-10-27 Vorrichtung und Verfahren zum Einstellen des Arbeitsspaltes zwischen den Spitzen von Deckelgarnituren und den Spitzen der Trommelgarnitur einer Karde
DE10053448.1 2000-10-27

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US (1) US20020152585A1 (fr)
EP (1) EP1201797A1 (fr)
DE (1) DE10053448A1 (fr)

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FR2850981A1 (fr) * 2003-02-07 2004-08-13 Truetzschler & Co Dispositif sur une machine de cardage, pour etablir l'emprise de travail entre le cylindre et au moins un rouleau voisin
US20060016049A1 (en) * 2004-07-23 2006-01-26 Trutzschler Gmbh & Co. Kg Apparatus at a carding machine having a cylinder and clothed and/or unclothed elements located opposite the cylinder
US20060168763A1 (en) * 2005-02-03 2006-08-03 Trutzschler Gmbh & Co.Kg Apparatus on a spinning preparation machine, especially a flat card, roller card or the like
US20060168762A1 (en) * 2005-02-03 2006-08-03 Trutzschler Gmbh & Co. Kg Apparatus on a spinning preparation machine, especially a flat card, roller card or the like
US20070128984A1 (en) * 2005-11-22 2007-06-07 Trutzschler Gmbh & Co. Kg Apparatus at a flat card or roller card for grinding a clothing drawn onto a rotating roller, having a carrying device
CN102268754A (zh) * 2010-06-02 2011-12-07 里特机械公司 回转盖板梳棉机中的曲轨的安装件
US20170029984A1 (en) * 2015-07-31 2017-02-02 Maschinenfabrik Rieter Ag Support of a Flexible Bend in a Revolving Flat Card

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CN101283125A (zh) * 2005-10-06 2008-10-08 里特机械公司 盖板致动系统
CH703251A1 (de) 2010-06-02 2011-12-15 Rieter Ag Maschf Vorrichtung zur Einstellung eines Kardierspaltes in einer Wanderdeckelkarde.
CH713202A1 (de) * 2016-12-06 2018-06-15 Rieter Ag Maschf Flexibelbogen einer Karde.
DE102019110691A1 (de) * 2019-04-25 2020-10-29 TRüTZSCHLER GMBH & CO. KG Karde
CH720172A1 (de) 2022-10-27 2024-05-15 Rieter Ag Maschf Vorrichtung und Verfahren zur Einstellung eines Kardierspaltes einer Karde

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FR2850981A1 (fr) * 2003-02-07 2004-08-13 Truetzschler & Co Dispositif sur une machine de cardage, pour etablir l'emprise de travail entre le cylindre et au moins un rouleau voisin
US20060016049A1 (en) * 2004-07-23 2006-01-26 Trutzschler Gmbh & Co. Kg Apparatus at a carding machine having a cylinder and clothed and/or unclothed elements located opposite the cylinder
US7694393B2 (en) * 2004-07-23 2010-04-13 Truetzschler Gmbh & Co. Kg Apparatus at a carding machine having a cylinder and clothed and/or unclothed elements located opposite the cylinder
US20060168763A1 (en) * 2005-02-03 2006-08-03 Trutzschler Gmbh & Co.Kg Apparatus on a spinning preparation machine, especially a flat card, roller card or the like
US20060168762A1 (en) * 2005-02-03 2006-08-03 Trutzschler Gmbh & Co. Kg Apparatus on a spinning preparation machine, especially a flat card, roller card or the like
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US20070128984A1 (en) * 2005-11-22 2007-06-07 Trutzschler Gmbh & Co. Kg Apparatus at a flat card or roller card for grinding a clothing drawn onto a rotating roller, having a carrying device
US7578729B2 (en) 2005-11-22 2009-08-25 Truetzschler Gmbh & Co. Kg Apparatus at a flat card or roller card for grinding a clothing drawn onto a rotating roller, having a carrying device
CN102268754A (zh) * 2010-06-02 2011-12-07 里特机械公司 回转盖板梳棉机中的曲轨的安装件
US20170029984A1 (en) * 2015-07-31 2017-02-02 Maschinenfabrik Rieter Ag Support of a Flexible Bend in a Revolving Flat Card
US10240261B2 (en) * 2015-07-31 2019-03-26 Maschinenfabrik Rieter Ag Support of a flexible bend in a revolving flat card

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DE10053448A1 (de) 2002-05-08

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