EP1781847B1 - Dispositif et procede pour une carde - Google Patents

Dispositif et procede pour une carde Download PDF

Info

Publication number
EP1781847B1
EP1781847B1 EP05762940A EP05762940A EP1781847B1 EP 1781847 B1 EP1781847 B1 EP 1781847B1 EP 05762940 A EP05762940 A EP 05762940A EP 05762940 A EP05762940 A EP 05762940A EP 1781847 B1 EP1781847 B1 EP 1781847B1
Authority
EP
European Patent Office
Prior art keywords
air guide
guide element
card
roller
air
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.)
Ceased
Application number
EP05762940A
Other languages
German (de)
English (en)
Other versions
EP1781847A1 (fr
Inventor
Götz Theodor GRESSER
Roland Styner
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 EP1781847A1 publication Critical patent/EP1781847A1/fr
Application granted granted Critical
Publication of EP1781847B1 publication Critical patent/EP1781847B1/fr
Ceased legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • D01G15/46—Doffing or like arrangements for removing fibres from carding elements; Web-dividing apparatus; Condensers

Definitions

  • the invention relates to a device for adjusting the distribution of air and fiber flow at a transition from a carding drum to a pickup by positioning at least one air guide element, wherein arranged after mounting the air guide against at least one fast-running roller, namely the card drum and / or the customer is, forms a working gap between the air guide element and the roller and a method for positioning the air guide element according to the preamble of claim 9.
  • the invention relates to the adjustment of the air and fiber flow on a card.
  • the tasks of the card include triggering to single fiber, the removal of impurities, dust and short fibers, dissolving nits, improving the fiber mixture, aligning the fibers and banding.
  • the fiber material is mainly on the card drum, also called Tambour processed.
  • the drummer joins the customer, who has to take off individual fibers from the reel and to condense them into a fleece.
  • the material which has been brought into parallel alignment on the card drum is brought back into a certain random position at the point of transition from the spool to the pickup, and bending of the fiber ends occurs.
  • the transition shall be so arranged that the quality of the material is not unduly affected by the above operations.
  • the transition point between the drum and the pick-up decides in no small degree on the carding quality, since this depends on which portion of the fiber material is transferred from the drum to the pick-up and thus influences or determines the fiber transfer factor.
  • the tendency for fiber adhesion to the roll fittings or fiber separation at the interface is influenced by the air flow around the rolls.
  • an air guide element also referred to below as the guide element or tongue.
  • the guide element or tongue Such elements are for example in EP 984 088 A2 shown, in particular different types of assembly.
  • the distance of the guide elements from the roller can be selected, but is firmly mounted.
  • the baffle influences the flow of air passing by the roller. This in turn has an influence on the adhesion or the tendency to detach the fiber material lying on the roller.
  • EP 984 088 A2 shows that the shape of the air guiding element shapes the course of the flow lines of the air flow, wherein a laminar flow field is preferred.
  • the adjustment or device of the guide elements takes place before a charge of the card. It is then checked by an installer on the particular material to be processed, which amount of fibers passes to the customer and which fleece quality is produced by the removed fibers. In particular, it checks whether the removed fleece is dense, has holes or dilutions, whether show thickening, irregularities occur and how the hairiness of the fleece is designed.
  • Adjustment means that can be used are in EP-B-790,338 described. According to the last-mentioned document, an adjustment means is to be carried out through the drum shield in such a way that it is accessible from the outside of the shield.
  • the air guide extends over the entire working width of the card and must be adjusted as equal to the width. It must therefore be provided two adjusting means each on a drum plate. However, the installer can not work on both such adjustment means at the same time.
  • rollers are operated with different fiber materials and different operating parameters, such as speed, of production, it is desirable that the air flow be controlled controllable.
  • the object of the invention is to provide a device with which can be optimally adapted to the operating conditions by positioning an air guide the air flow and the fiber flow to the roller.
  • the object is achieved by a generic device in which the spoiler element has at least one reference point which is on a line which has a distance from the surface of the roller and substantially runs along the surface, is movable, and a method according to claim 10.
  • the object is achieved by an adjusting device which is suitable for adjusting the air guiding element over the entire working width and which can be actuated from a predetermined setting position.
  • This adjustment position is preferably easily accessible to the operator.
  • the object is achieved by a guide for the air guide, which allows the adjustment of the element in the circumferential direction of a roller, in particular the card drum.
  • a core of the invention is that the air guide can be moved around the roller.
  • Air guide elements according to the invention are used at the transitions at which the fiber material is guided from one roller to another, namely from a carding drum to a pickup. Viewed from one side, one roller turns clockwise and the other counterclockwise, with the two rollers moving in unison at the point of their closest approach. In the areas where the surfaces of the rollers are spaced from each other, air guiding elements are provided.
  • a baffle may be attached to each of the carding drum and the pickup, or only one baffle is provided which has a shape that affects the flow of air about both bobbins. It may also be sufficient to attach only one guide element to one of the rollers.
  • An inventive positioning of the air guiding element allows either to bring the air guiding element closer to the region of closest proximity between the two rollers or to further remove the air guiding element from this region.
  • the very fast rotating card drum forms an air cushion around the tambour mounted clothing, which is pulled along with the roller. In the transition region after the first position between the drum and the pickup, this can lead to a suction in the direction of the reel, which holds more fiber material than desired on the card drum.
  • the nonwoven on the pickup then has dilutions or even unwanted holes.
  • the transfer rate and the clean running behavior also depend on the fiber length. For example, if the distance between the air guide element and the narrowest point Tambour / customer too large, so forms in the gusset, d. H. in the area where the drum and the takers move away from each other, a volume in which short fibers can jump uncontrollably back and forth. If the distance is too small, however, longer fibers can accumulate on the tongue edge pointing in the gusset.
  • the optimized conditions must be determined. So that the machine does not have to be completely converted with every change of operation, it is advantageous if the air guide element can be moved within a certain range. Preferably, a movement closer to or away from the narrowest portion of the gusset between the drum and takers.
  • the size of the working gap, which the air guide element forms with the surface of the roller on which the clothing is located in the case of a card drum, is in the millimeter or tenth millimeter range. Therefore, in the solutions of the prior art at least portions of the air guide element were kept in a fixed position. After loosening the attachment so the air guide was manually adjustable, but otherwise firmly attached to the card frame. Of course, compared with the working width of the drum, which is within the meter range, only very small changes in the position of the element are possible.
  • the entire air guide element is movable.
  • An exact guidance of the element is nevertheless possible, for example because a line is provided on which at least one reference point of the guide element is guided.
  • the reference points may be an axis that extends through the entire guide element over the entire working width, may be symmetrical points at the respective ends of the guide element or points that lie in areas that are specifically for attachment , or assembly of the air guide serve.
  • the reference point can also be the center of gravity of the guide element.
  • the guide line can be implemented inter alia by corresponding guide rails or guide grooves, in which the guide element is held.
  • the guide element can also be guided in a shell-like element, so that the guide line according to the invention is part of a guide surface.
  • the line preferably extends substantially along the surface of the roller, in particular in the circumferential direction, which allows movement of the guide element around the roller. If the line were perpendicular to the roll surface, a movement along the line would correspond only to a distance variation from the guide element to the roll surface.
  • the guide element can either be locked only at a few selected points on the guide line or on all points of the guide line, so that a stepless adjustment is possible.
  • the distance and the inclination of the air guide element relative to the roller can be changed during a movement of the air guide element along the line.
  • At least one reference point of the guide element is guided on a line which runs coaxially to the roller axis and with which the guide element forms a working gap. During a movement of the air guide element, the distance between the roller surface and the air guide element remains constant.
  • the positioning of the air guiding element according to the invention can be combined with the variation possibilities known from the prior art so, for example, the distance of the air guiding element from the roller can be adjustable and / or the air guiding element has a reference point through which an axis runs, around which the air guiding element is rotatable.
  • the casing of the rollers may be provided with air passage openings, the false air supply and / or dissipate.
  • the position of the air guide element can be fixedly mounted during assembly of the machine, in a preferred embodiment, however, the air guide element is connected to a control device, by means of which the movement of the air guide element can be executed controlled.
  • the control device may have its own drive, for example, a servomotor may be provided which sets a guided movement of the guide element in motion. An operator of the machine can determine the position of the air guide element via the control device.
  • control device automatically characterizes the type of raw material and / or the rotational speed of the roller as a function of an adjustable parameter set, which measures, for example, the weight of the strip at the output of the card or on the reel, and carries out the positioning of the guide element.
  • the device is provided with at least one optical detection element.
  • This element can be a camera, with which the position of the tongue can be observed even when the machine is closed. Under control of one or more cameras and display the images on a monitor, for example, the initial setting of the air guide element can be made by a fitter, which was previously performed with the machine open. It is convenient, not only the guide element, but also the quality of remaining on the card drum and / or observed on the customer deposited fiber material and display on a monitor.
  • the observation of the position of the guide element with a camera also has the advantage that the only millimeter thin intervals can be increased and thus accurately controlled, as a setting under eye does not allow it and what makes other tools for distance control unnecessary.
  • the viewing angle of a camera can be directed to the slot between the card drum and the pickup and / or to the gap between the air guide element and a roller. It may also pass tangentially on the roller to detect the hairiness of the fiber material, or face frontally on a roller to detect holes or densities in the fiber material.
  • a camera image of the area between the drum and the pickup can provide information on whether material accumulates on the tongue.
  • the images acquired with the camera or cameras can be forwarded to an evaluation system. With this can be monitored, for example, whether and to what extent a gap is added to material or whether the hairiness of the fleece is above a certain reference thickness. If the deviation from a predetermined reference value becomes too large, an alarm signal can be triggered.
  • the optical elements may also operate as sensors for an additional light source and provide a measure of a distance, angle or fiber quality.
  • the detection of the optical signals can serve as a working aid for the initial setting of the machine, to control the once set parameters or to initiate new settings.
  • the signals of a web monitoring device downstream of the drum / pickup transfer point may be used to adjust and / or monitor the Air guiding element are used, for example, a camera that monitors the fleece in the nonwoven bridge.
  • the control device is connected to at least one transducer.
  • the measured value can be a direct or indirect measure of the instantaneous position of the air guiding element. For example, it can indicate a distance or an angle, but it can also quantify the pressure of the draft between the air guide element and the roller. It is particularly advantageous if the air and / or fiber stream, or the distribution of the streams to the respective rolls, is measured directly.
  • an air and / or fiber flow measurement can be carried out in the respective flow channels, ie in the gap between the guide element and the drum and / or in the gap between the guide element and the take-off roller.
  • the pressure in the vicinity of the card drum can be measured before the air cushion reaches the transfer point.
  • the measured value can be displayed so that an operator of the machine can reposition the air guiding element depending on the measured value display.
  • a simple device is attached thereto which allows a simple precise manual adjustment, a scaling can then guarantee an always same setting and thereby simplifies the handling when changing the cotton template.
  • control device can also carry out a comparison with a previously determinable desired value and, in the event of a deviation, emit a signal on the basis of which a machine operator is to become active.
  • the setpoints can be specified by an installer or come from a database that is composed of optimized for each situation parameter sets.
  • the database for example, the relationships between the type of fiber material, the desired tape weight, the throughput speed and the setting of the air guide can be stored.
  • control device comprises a control loop with which the movement of the guide element is carried out automatically.
  • an operator may specify a desired value, with the aid of which the control device uses the signals from the control loop to ensure that the position of the air guiding element always results in compliance with the measured value within a tolerance range around the desired value.
  • the invention is further achieved by a method in which the air guiding element is guided in a controlled manner around the roller.
  • An advantageous method is used for the initial setting of the air-guiding element, in that the positioning of the air-guiding element is carried out under optical control, the images being recorded by at least one camera located on the device.
  • the method is characterized by the following method steps.
  • a control device is provided with a measured value detection.
  • the control device first of all compensates for a detected measured value with a predefinable desired value and, in the case of a significant deviation of measured value and nominal value, repositions the air-guiding element.
  • the process steps can be repeated either at adjustable time intervals, or the measurement control and, if necessary, the tracking of the guide element are carried out continuously.
  • FIG. 1 shows a Wanderdeckelkarde, for example, the Rieter card C60, with a working width of 1.5 M, with a hopper 1.
  • the drawing shows the general sequence in a device to which the inventive device is preferred to use.
  • Fiber flakes are transported by transport channels not shown in the figure and also by different cleaning process steps, not shown, and finally fed to the hopper 1 of the card.
  • This passes the fiber flakes as cotton wool to the card.
  • a feed roller 3 and a feed trough 2 feed the fiber flakes into lickerins 5.
  • the lickerins 5 open the fiber flakes and remove part of the dirt particles.
  • the last Vorreisserwatze passes the fibers to the carding drum 6, also called card drum or drum.
  • the card drum 6 cooperates with lids 7 and in this case further parallelizes the fibers.
  • the lid 7 are by a lid cleaning (in FIG. 1 on the revolving flat unit on the right shown schematically, but not specifically designated) cleaned.
  • the zone between the card drum 6 and the lids 7 is called “main carding zone”, while the area opposite to the main carding zone with respect to the drum axis is called “under carding zone”.
  • Controlled (controlled) positioning of an air guiding element 22 according to the invention is preferably provided in the region in which the fiber material either reaches the region of the undercarding zone or is taken over by the consumer 8.
  • FIG. 2 shows a schematic representation of a first embodiment of an inventive device 221, which is arranged in a region between a card drum 6 and a pickup 8.
  • the device comprises a first air guiding element 222, which forms a working gap S with a roller, in this case the card drum 6.
  • the air guide element 222 has at least one reference point, shown in the figure as a reference point 223, which is movable on a line 224 which extends at a distance 225 around a part of the surface 226 of the card drum 6.
  • this line is 224 in a coaxial with the card drum 6 circle. In this case, the distance between the reference point 223 and the surface 226 of the card drum 6 remains constant.
  • a positioning of a second air guiding element 228 can be carried out, which forms a working gap with a roller, in this case the pickup roller 8.
  • EP 0 984 088 A2 Various options for attaching an air guide element are shown. So is in the FIGS. 1 and 2 from EP 0 984 088 A2 an air guide element designed as a baffle or tongue, which is fastened with a foot part to a support, which in turn firmly connected to a foot end with a machine frame part is.
  • the support may have a support surface opposite its foot part, which surface lies opposite the surface of the roller and on which the air guide element can slide to and fro.
  • the bearing surface of the support defines in this case the guide line of the baffle.
  • FIGS. 7 to 10 Another type of attachment is shown in Figures 3 to 11 of EP 0 984 088 A2 presented.
  • the air guide is arranged on the so-called top segments, which form part of the both sides of the card arranged drum shields.
  • the air-guiding element called tongue in this case, is mounted on both sides on one arm each.
  • the guide line can be specified either by the shape of the arm on which the tongue is movable back and forth, or the arm with a permanently mounted tongue performs the movement relative to the drum plate.
  • FIG. 3 shows a schematic representation of a second embodiment of an inventive device 321.
  • the air guide 322 is movable along a line 324 about the card drum 6 and also rotatably supported about an axis 331. With the rotation about the axis 331 lying in the air guiding element 322, the widths of the working gaps S, S 'can be changed.
  • FIG. 4 shows a further embodiment, wherein the inventive device 421 in turn comprises only one air guide 422 which can be moved along two lines with respect to the card drum 6 and the pickup 8.
  • the two lines are each indicated by a double-pointed arrow on the element 422 itself.
  • a first sensor 432 controls the fiber flow on the card drum 6 before the fibers reach the pickup 8.
  • the sensor 432 can be an optical sensor, for example a camera, or a measuring device, for example for detecting the pressure or the air or fiber flow.
  • Further sensors 433, 434 may be provided to control the flow through the working gaps S, S ', respectively. This control can also be carried out optically, ie with a camera or an optical sensor, or by means of a measured value acquisition of pressure or flow.
  • a camera may be oriented tangentially to a roll surface to observe the hairiness of the fibers or to be directed directly into a working nip S or S ', or a camera may be oriented perpendicular to a roll surface and an image of that on the respective roll Give fiber material.
  • Suitable monitoring systems for the interior of a card with a machine panel are, for example, in DE-A-10259475 been described. In order to ensure a sufficient image quality, it may be necessary to attach additional light sources.
  • FIG. 5 shows a copy of the FIG. 2 with minor modifications.
  • the air guide element 222A is provided at the free end with a "head".
  • This head is essentially the head equal to the air guide according to the FIG. 1 of the EP-A-432 430 (respectively. EP-B-790,338 ) was provided.
  • the design of this head section helps clean separation of the fiber / air flows, on the one hand continue to flow with the drum 6 and on the other hand follow the customer 8.
  • the position of the second air guiding element 228, which is associated with the pickup 8, remains in the FIG. 5 , in comparison to FIG. 2 , unchanged, because it is only a schematic representation. In practice, however, one would have to optimize the mutual positioning of these two elements, which is greatly facilitated by an adjustment device according to the present invention.
  • the reference point 223 is moved radially "inwardly" relative to the drum 6.
  • the element 222A being provided at each end, which is outside the working width of the machine, at a location remote from the head with a boom 227 extending radially inwardly from the elongate body of the element.
  • the reference point 223A is now in this boom 227.
  • the radial distance of the reference point from the axis of rotation of the drum can thus be chosen smaller or larger than the radius of the drum, or the radius of equal size.
  • the movement line 224A also does not have to be concentric with the axis of rotation of the drum. By a suitable choice of the geometry of this line can take place simultaneously by an adjustment of the element 222A in the circumferential direction of the drum, a radial displacement of this element.
  • FIGS. 6 and 7 show schematically and compared to the other figures enlarged each a variant of an adjusting device, which is suitable for use in connection with this invention.
  • the solution according to the FIG. 6 includes a controllable actuator.
  • the drum is designated by the reference numeral 6, the customer by the reference numeral 8 and the narrowest point between these rollers by the reference numeral 230.
  • the air guide element is denoted by the reference numeral 322A (see. Fig. 3 ) and essentially comprises a profile that extends over the entire working width of the card (1 to 1.5 m) extends. This profile is provided with supports 350 (only one support shown) by means of a pivot axis 331A (cf. FIG. 3 ) connected to a crossbar 352.
  • Traverse 352 has openings for guide bars 354 (only one bar 354) secured by support 356 on machine frame 355.
  • a support also carries an electric motor 357, which can rotate a threaded spindle 358, wherein the threaded spindle 358 cooperates with a nut or a threaded bore 359 which is mounted in the cross member 352.
  • the crosshead 352 moves along the bars 354, changing the distance between the "nose” 360 of the profile 322A and the narrowest point 230.
  • the profile 322A can also be rotated about the pivot axis 331A to thereby adjust the distance between the drum 6 and the surface of the profile 322A facing it.
  • the cross member carries, for example, a round disc 362 which is fixedly mounted on a shaft 364.
  • the shaft 364 is the shaft of an electric motor 366 carried by the crossbar 352.
  • the profile 322A lies on the circular surface of the disc, which is eccentrically fixed to the axis of rotation of the motor shaft.
  • the actuators can, for example, have stepper motors or motors with encoders or resolvers.
  • the execution according to the FIG. 6 is of course complex and expensive, so it is not suitable for cost-effective designs.
  • the solution according to FIG. 7 is much easier. It is basically a further development of the embodiment according to FIG. 10 in FIG EP-B-984 088 ,
  • the air guide 222B (see. FIG. 2 ) - in EP-B-790,338 Called "tongue" - is formed in the shape of a continuous casting profile.
  • the profile is mounted by suitable means, explained in more detail below, on the underside of an arm 112.
  • the lateral surface of the clothing (not shown) of the drum is indicated by dashed lines and designated by 1A. There remains a gap E between the lateral surface 1A and the surface of the element 222B facing it free.
  • the arm 112 is part of a so-called canopy segment 125, which is positioned by means of a screw 126 in the machine frame.
  • the arm 112 strives for bias in the direction of the lateral surface 1A and is thereby limited by a stop which is formed by the end of an adjusting screw 132 and thereby effectively determines the width of the gap E.
  • This screw 132 is accessible to the machine operator from the outside of the machine plate 121.
  • the construction corresponds to the FIG. 7 essentially the solution according to EP-B-984 088 , Fig. 10, wherein in the latter embodiment, the air guide has been fastened to the support arm.
  • the element 112 is intended to be in the direction of the narrowest point (in FIG Fig. 7 not shown, cf. Position 230, Fig. 2 ) between tambour and customer, or away from this point, be adjustable
  • the profile 222B can be provided at each end with a supporting end head which cooperates with the respective top segment outside the working width of the rollers - which is an end head in the FIG. 7 indicated by the dashed lines 223.
  • Each end head 223 is also provided with a rod 130 which is guided by a sleeve 131 fixedly mounted on the arm 112.
  • the rod 130 carries at its free end a disc 123 and a spring 120 acts in the sense between the sleeve 131 and the disc 123, that the air guide element in one of the constriction 230 (Fig. Fig. 2 ) is repulsed remote position.
  • this displacement away from the constriction is limited by an adjustable stop, which is formed by a cam 124 in this embodiment.
  • the cam 124 is fixedly mounted on an axle 125 rotatably mounted in the drum plates (in the FIG. 7 , not shown).
  • the cam 124 has a cylindrical lateral surface (not designated), which is arranged eccentrically with respect to the rotation axis 125.
  • FIGS. 7A , B and C each show a possible embodiment of the principle according to the FIG. 7 ,
  • the top segment is designated in each case by the reference numeral 125, the arm by the reference numeral 112 and the spoiler element by the reference numeral 222B.
  • the solution on one side of the machine is shown, whereby the same solution principle can be applied mirror-inverted on the other side of the machine.
  • the aforesaid supporting end head is embodied as a carriage 150 running in a groove-shaped guide 152 in the side surface of the arm 112.
  • the guide runs concentrically to the lateral surface 1A (in the FIG. 7A not shown, cf. Fig. 7 ), so that the element 222B retains its attitude with respect to the lateral surface 1A, while it is opposite to the constriction 230 (FIG. Fig. 2
  • the bushing 131A is designed as a slide bushing, wherein in addition two joints 154, 156 must be provided in order to allow the required angular displacement of the rod 130 relative to the guide element 222B.
  • the bushing 131 B has no guide function for the rod 130, it merely serves as a receptacle for the compression spring 120 (FIG. Fig. 7 ).
  • the opening in the sleeve 131 B must leave sufficient clearance against the rod 130 to allow the change in angular position of the rod 130 (indicated by dashed lines) during an adjustment movement of the member 222B.
  • the rod 130 is guided through two sliding bushes 131C, which only permits a linear movement of the rod or of the element 222B, as indicated by dashed lines in FIG. 7C.
  • the displacement of the element 222B in the circumferential direction is therefore accompanied in this case by an adjustment in the radial direction.
  • a radial adjustment in the sense of an enlargement of the radial distance during a movement of the element in the direction of the constriction 230 (FIG. Fig. 2 ), where by the design of the geometry the sliding bushes 131C can be provided with a reduction of the radial distance when adjusting in the direction of the constriction.
  • the axle 125 may be common to both cams 124 and may be passed through the drum shield on one side or both sides of the card so that the axle 125 is accessible to the operator. Outside the shield, the axle can be provided with a hand crank, or with a receptacle for a hand crank, so that the adjustment of the air guiding element 222 B can be carried out along the arm 112 manually from a predetermined position in the vicinity of the card.
  • the axis 125 could (also) be coupled to a controllable electric motor so that the adjustment can be controlled without direct manual intervention.
  • a suitable actuator is for example in EP-A-627 508 ( Figures 12 and 13) are shown schematically and a further development with piezoelectric translators is associated with EP-B-787,841 . Fig. 2 been described.
  • a common adjustment axis for the radial adjustment could also be driven by an electric motor, or it could be provided for the two stops on the arms 112 each have a controllable motor.
  • the statements according to the FIGS. 6 and 7 are merely intended as examples of two possibilities of actuation and are by no means to be considered as limitations.
  • the one way Fig. 6 is all movements of the air guide be managed by a controllable actuator, which can be controlled for example by a control console of the machine - see. following FIG. 9 ,
  • the second possibility Fig. 7 is to accomplish predetermined movements by a relatively simple adjustment mechanism, which can be preferably operated from a set position, ie it is not necessary to provide the actuation on both sides of the machine. There are also many alternative designs known that meet the requirements of these two options.
  • the DE-A-3 702 588 shows, for example, both a controllable actuator for linear movements ( Fig. 2 .
  • the drum is also in the FIG. 8 designated by the reference numeral 6, wherein the curved line 6A represents the lateral surface of the clothing.
  • the direction of movement of the clothing is indicated by the arrow.
  • the spoiler is designated 822 and is greatly simplified in order to facilitate the description.
  • the element 822 has an "inner surface” 823, which should have at least one location a predetermined distance from the lateral surface 6A of the drum set.
  • the element has 822, a nose 824A that is a predetermined distance from the narrowest point 230 (see FIG. Fig. 2 ) between the drum 6 and the pickup (in the FIG. 8 not shown).
  • the inner surface 823 should maintain a predetermined distance from the clothing at two locations, namely at location 824B (distance b) and location 824C (distance c).
  • Distance b is for example 1 to 5 mm and distance c is 0.5 to 3 mm.
  • the actuators can assume these fixed values when performing controlled movements. Starting from its position in contact with the stop 830, the element 822 can be moved within a predetermined adjustment range t in the circumferential direction of the drum 6. This adjustment range includes, for example, a distance t of 5 to 30 mm.
  • the invention is not limited to the disclosed system for the formation of reference points. Measuring means could, for example, be provided in order to measure the existing distance between a predetermined point on the air guiding element and a corresponding reference point on the machine frame, for example on the soft top segment (roof bow).
  • an absolute encoder in combination with the actuator can be dispensed with a referencing outside the actuator itself, if the actuator is mounted at a predetermined location in the machine.
  • FIG. 9 shows a portion of the FIG. 1 to schematically illustrate the connection of the machine to a controller.
  • a control console 900 with a computer 902, a screen 904 and a keyboard 906 is provided.
  • the computer 902 receives signals from sensor elements in the machine and provides signals to the actuators of the machine.
  • only the actuator 908 for the air guide 922 is important.
  • the operator can now enter a setpoint for a given distance between the spoiler and a specific reference point via the keyboard.
  • This setpoint or setting value is at least the default setting.
  • the computer then provides signals to the actuator 908, so that the air guide is moved into the defined default, with signals from the measurement sensor 910 are evaluated by the computer.
  • the sensor 912 detects defects in the fleece and reports to the computer 902.
  • the computer evaluates the signals from the sensor 912 and, in the event of a defect that may be corrected by changes in the setting of the air guide, then provides signals to the actuators 908 to initiate the necessary adjustments, again from the sensors 910 to take into account.
  • the Aktorik thingsen according to the FIGS. 6 and 7 are suitable for adjusting the air guide over the entire working width. You can also choose from a predetermined "Setting position" can be controlled or operated.
  • the setting position is adjacent to the control console, where the operator can generate control commands for the actuators by means of the operating elements, such as the keyboard or screen.
  • this setting position is easily accessible to the machine operator.
  • the operator is now able to move from a "setting position" near at least one end of axis 125 (FIG. Fig. 7 ) to adjust the spoiler during operation of the card.
  • a suitable locking can be provided in order to keep the air guiding element in a selected position reliable, but detachable.
  • the lock can also be manually operated, for example in the form of a lock which prevents the rotation of the cam.
  • the lock can also be performed controllable.

Landscapes

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

Claims (14)

  1. Dispositif doté d'un élément (22, 222, 228, 322, 422) de guidage d'air pour une carde, destiné à établir la répartition des écoulements d'air et de fibres à la transition entre un tambour de carde (6) et un dispositif d'enlèvement (8), l'élément (22, 222, 228, 322, 422) de guidage d'air pouvant être monté par rapport à au moins un des cylindres (6, 8), à savoir le tambour de carde (6) et/ou le dispositif d'enlèvement (8) de manière à former un interstice de travail entre l'élément (22, 222, 228, 322, 422) de guidage d'air et le cylindre (6, 8),
    caractérisé en ce que
    l'élément (22, 222, 228, 322) de guidage d'air présente au moins un point de référence (223) qui peut être déplacé sur une ligne (224, 324) située à une distance (225) de la surface (226) du cylindre (6, 8) et qui s'étend essentiellement le long de la surface (226).
  2. Dispositif selon la revendication 1, caractérisé en ce que la ligne (224, 324) est une partie de cercle dont le centre est situé sur l'axe du cylindre (6, 8).
  3. Dispositif selon les revendications 1 ou 2, caractérisé en ce que la distance entre l'élément (22, 222, 228, 322, 422) de guidage d'air et le cylindre (6, 8) peut être ajustée et/ou en ce que l'élément (22, 222, 228, 322, 422) de guidage d'air présente un point de référence par lequel passe un axe (331) et autour duquel l'élément (22, 222, 228, 322, 422) de guidage d'air peut tourner.
  4. Dispositif selon au moins l'une des revendications 1 à 3 qui précèdent, caractérisé en ce que l'élément (22, 222, 228, 322, 422) de guidage d'air est relié à un dispositif de commande qui permet de commander le déplacement de l'élément (22, 222, 228, 322, 422) de guidage d'air.
  5. Dispositif selon au moins l'une des revendications 1 à 4 qui précèdent, caractérisé en ce que le dispositif comporte au moins un élément optique de détection (432).
  6. Dispositif selon au moins l'une des revendications 1 à 5 qui précèdent, caractérisé en ce que le dispositif présente au moins un enregistreur de valeurs de mesure et en particulier un dispositif de mesure d'écoulement.
  7. Dispositif selon l'une des revendications 4, 5 ou 6, caractérisé en ce que le dispositif de commande effectue une comparaison avec une valeur de consigne.
  8. Dispositif selon l'une des revendications 4 à 7, caractérisé en ce que le dispositif de commande comporte une boucle de régulation qui permet d'automatiser le déplacement de l'élément (22, 222, 228, 322, 422) de guidage d'air.
  9. Carde doté d'un dispositif selon l'une des revendications 1 à 8, caractérisée par un dispositif d'ajustement qui permet d'ajuster l'élément (22, 222, 228, 322, 422) de guidage d'air sur toute la plage de travail et qui peut être actionné depuis une position d'ajustement prédéterminée.
  10. Carde selon la revendication 9, caractérisée en ce que le dispositif de déplacement comporte un ensemble d'actionneurs asservi, l'ensemble d'actionneurs pouvant être commandé depuis la position d'ajustement.
  11. Carde selon les revendications 9 ou 10, caractérisée par un guide (152) pour l'élément (22, 222, 228, 322, 422) de guidage d'air qui permet d'ajuster l'élément (22, 222, 228, 322, 422) de guidage d'air le long de la périphérie d'un cylindre (6, 8) et en particulier du tambour de carde (6).
  12. Procédé selon l'une des revendications 9 à 11, pour l'ajustement de la répartition des écoulements d'air et de fibres sur une carde, caractérisé en ce que l'élément (22, 222, 228, 322, 422) de guidage d'air entoure la périphérie du cylindre (6, 8).
  13. Procédé selon la revendication 12, caractérisé en ce qu'un contrôle optique est exécuté à l'aide d'un élément de détection optique situé sur le dispositif.
  14. Procédé selon l'une des revendications 12 ou 13, caractérisé en ce qu'un dispositif de régulation et une saisie des valeurs de mesure sont prévus pour
    - amener la valeur de mesure à une valeur de consigne prédéterminée et
    - repositionner l'élément (22, 222, 228, 322, 422) de guidage d'air en cas d'écart entre la valeur de mesure et la valeur de consigne.
EP05762940A 2004-08-03 2005-07-29 Dispositif et procede pour une carde Ceased EP1781847B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH12992004 2004-08-03
PCT/CH2005/000454 WO2006012768A1 (fr) 2004-08-03 2005-07-29 Dispositif et procede pour une carde

Publications (2)

Publication Number Publication Date
EP1781847A1 EP1781847A1 (fr) 2007-05-09
EP1781847B1 true EP1781847B1 (fr) 2010-03-03

Family

ID=34980101

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05762940A Ceased EP1781847B1 (fr) 2004-08-03 2005-07-29 Dispositif et procede pour une carde

Country Status (5)

Country Link
EP (1) EP1781847B1 (fr)
CN (1) CN1993506B (fr)
BR (1) BRPI0512787A (fr)
DE (1) DE502005009148D1 (fr)
WO (1) WO2006012768A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011110681A1 (de) * 2011-08-19 2013-02-21 Trützschler GmbH & Co Kommanditgesellschaft Vorrichtung an einer Karde für Baumwolle, Chemiefasern u. dgl., die zwischen einem Abnehmer und zwei Quetschwalzen angeordnet ist
DE102011110671A1 (de) * 2011-08-19 2013-03-28 Trützschler GmbH & Co Kommanditgesellschaft Vorrichtung an einer Karde für Baumwolle, Chemiefasern u. dgl., die zwischen einem Abnehmer und zwei Quetschwalzen angeordnet ist

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6936675B2 (en) 2001-07-19 2005-08-30 Univation Technologies, Llc High tear films from hafnocene catalyzed polyethylenes
CH703250A1 (de) * 2010-06-02 2011-12-15 Rieter Ag Maschf Lagerung eines Flexibelbogens in einer Wanderdeckelkarde.
CN103741276B (zh) * 2014-01-26 2017-02-08 河北宇腾羊绒制品有限公司 一种羊绒分梳装置
DE102019128620A1 (de) * 2019-10-23 2021-04-29 TRüTZSCHLER GMBH & CO. KG Spinnereivorbereitungsmaschine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2987779A (en) * 1957-02-05 1961-06-13 Kawashima Kanichi Doffing process and apparatus for the card by action of air
EP0403989B1 (fr) * 1989-06-21 1993-11-24 Maschinenfabrik Rieter Ag Garniture de carde
EP0432430A1 (fr) * 1989-12-11 1991-06-19 Maschinenfabrik Rieter Ag Appareil pour supporter le passage de la nappe de fibres du cylindre cardeur au cylindre detacheur
FR2734001B1 (fr) * 1995-05-12 1997-06-27 Staubli Sa Ets Mecanique d'armure du type rotatif pour la formation de la foule sur les machines a tisser
EP0790338B1 (fr) * 1996-02-15 2002-10-16 Maschinenfabrik Rieter Ag Dispositif de réglage sur une machine de cardage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011110681A1 (de) * 2011-08-19 2013-02-21 Trützschler GmbH & Co Kommanditgesellschaft Vorrichtung an einer Karde für Baumwolle, Chemiefasern u. dgl., die zwischen einem Abnehmer und zwei Quetschwalzen angeordnet ist
DE102011110671A1 (de) * 2011-08-19 2013-03-28 Trützschler GmbH & Co Kommanditgesellschaft Vorrichtung an einer Karde für Baumwolle, Chemiefasern u. dgl., die zwischen einem Abnehmer und zwei Quetschwalzen angeordnet ist

Also Published As

Publication number Publication date
DE502005009148D1 (de) 2010-04-15
CN1993506A (zh) 2007-07-04
WO2006012768A1 (fr) 2006-02-09
BRPI0512787A (pt) 2008-04-08
EP1781847A1 (fr) 2007-05-09
CN1993506B (zh) 2010-09-08

Similar Documents

Publication Publication Date Title
EP0801158B1 (fr) Capteur pour la distance de travail de garnitures de cardage
EP1781847B1 (fr) Dispositif et procede pour une carde
EP2390391B1 (fr) Machine de préparation de filature
DE102005001995B9 (de) Spinnereivorbereitungsmaschine mit einer Steuerungseinrichtung
EP0481302A2 (fr) Grille pour un cylindre d'ouverture d'un métier à filer
EP2406415B1 (fr) Cardeuse à chapeaux tournants
EP0497736B1 (fr) Procédé pour meuler les garnitures sur un tambour de cardage ou tambour de nettoyage par exemple
EP0810309B1 (fr) Installation pour le traitement de fibres
EP0289009A1 (fr) Procédé et dispositif pour la surveillance et le maintien d'une qualité de fil prédéterminée
EP0627508A1 (fr) Appareil de diagnostic
EP0787841B2 (fr) Procédé pour la production d'un ruban cardé à l'aide d'une carde ainsi que carde
EP0978581B1 (fr) Machine pour le traitement de matériau textile avec banc d'étirage
DE4018803A1 (de) Verfahren und vorrichtung zur regelung eines oeffnungsvorganges, beispielsweise an einer karde
EP2392703A1 (fr) Stockage d'une feuille flexible dans une cardeuse à chapeaux tournants
CH702008A2 (de) Kämmmaschine mit Faserbandführungsmittel.
EP0926274B2 (fr) Auge élastique d'alimentation
DE69518535T2 (de) Kardenabfallüberwachung
DE102005038405A1 (de) Reinigungsvorrichtung
EP1587973B1 (fr) Dispositif de transport et de pose de fibres permettant leur fixation a une machine a carder
EP0984088B1 (fr) Appareil de réglage dans une machine de cardage
DE2917666C2 (de) Schärmaschine
EP1837426A2 (fr) Appareil pour la surveillance du guidage d'une courroie
WO2007112604A1 (fr) Carde à chapeaux tournants
EP0310820B1 (fr) Appareil pour emmagasiner et délivrer du fil pour machines textiles, en particulier pour machines à tricoter
DE10145312A1 (de) Vorrichung zum Schmelzspinnen und Aufwickeln eines Fadens

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20061220

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE IT LI

DAX Request for extension of the european patent (deleted)
RBV Designated contracting states (corrected)

Designated state(s): CH DE IT LI

RBV Designated contracting states (corrected)

Designated state(s): CH DE IT LI

17Q First examination report despatched

Effective date: 20080731

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE IT LI

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 502005009148

Country of ref document: DE

Date of ref document: 20100415

Kind code of ref document: P

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20100726

Year of fee payment: 6

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20101206

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100303

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110731

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110731

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20220620

Year of fee payment: 18

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502005009148

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20240201