EP0021450B1 - Einpressvorrichtung für eine kontinuierlich arbeitende Knautschanlage - Google Patents

Einpressvorrichtung für eine kontinuierlich arbeitende Knautschanlage Download PDF

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Publication number
EP0021450B1
EP0021450B1 EP80103689A EP80103689A EP0021450B1 EP 0021450 B1 EP0021450 B1 EP 0021450B1 EP 80103689 A EP80103689 A EP 80103689A EP 80103689 A EP80103689 A EP 80103689A EP 0021450 B1 EP0021450 B1 EP 0021450B1
Authority
EP
European Patent Office
Prior art keywords
stuffing
ring
compression tube
press ring
tube
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.)
Expired
Application number
EP80103689A
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German (de)
English (en)
French (fr)
Other versions
EP0021450A1 (de
Inventor
Klaus Günter Kühn
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.)
Edelmann Maschinenfabrik & Co KG GmbH
Original Assignee
Edelmann Maschinenfabrik & Co KG GmbH
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 Edelmann Maschinenfabrik & Co KG GmbH filed Critical Edelmann Maschinenfabrik & Co KG GmbH
Publication of EP0021450A1 publication Critical patent/EP0021450A1/de
Application granted granted Critical
Publication of EP0021450B1 publication Critical patent/EP0021450B1/de
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C23/00—Making patterns or designs on fabrics
    • D06C23/04—Making patterns or designs on fabrics by shrinking, embossing, moiréing, or crêping

Definitions

  • the invention relates to a press-in device for a continuously operating crushing plant for web material with a compression tube, the axis of which extends in a straight line in its initial region and into which the web material formed into the strand is pressed, according to the preamble of claim 1.
  • Crushing systems serve to provide web material, in particular textile material, and in particular velor and velvet, with preferably permanent crease folds, in order to give the web material a special appearance and increased sensitivity to use.
  • the web material formed into a strand is pressed into and through the compression tube, which is perforated and runs through a trough guided with heated water.
  • the web material is folded arbitrarily in the upsetting tube. Due to the high temperature of the water in the tub, the web material assumes the folds which are fixed in a second tub filled with cold water, through which the web material is guided following the first tub.
  • a press-in device for pressing the web material into the upsetting pipe, which has a pair of delivery rollers and a short pipe socket arranged behind the pair of delivery rollers in the direction of movement of the strand.
  • the strand runs through the pair of delivery rollers and the pipe socket.
  • the unit consisting of the pair of delivery rollers and the pipe socket is pushed back and forth in the direction of the straight axis of the compression tube, as a result of which the strand is to be compressed in the compression tube.
  • This known press-in device has the disadvantage that there is a risk that the web material is already jammed immediately behind the pair of delivery rollers, so that the material wraps around the delivery rollers and cannot be conveyed further by them. This in turn forces unwanted business interruptions.
  • a press-in device with the features of the preamble of claim 1 is known from US-A3987519.
  • the upsetting tube of which is extended beyond its inlet opening and the retaining device the retaining device consists of a ring fixed to the device at the inlet opening of the upsetting tube, which carries projections directed radially inwards and towards the inside of the upsetting tube, which are designed as needles.
  • the press ring has similar projections.
  • the projections or needles of the retaining device should engage in the web material and prevent the web material from being withdrawn from the upsetting tube during the return of the press ring.
  • This known press-in device has the disadvantages that the projections or needles can damage the web material and since not all the material that is taken from the press ring in the direction of the inner dead center is also pressed into the compression tube, because the web material at least partially only between that Press ring and the retaining device is pressed together and is not conveyed past the retaining device.
  • the invention has for its object to provide a generic press-in device that works as trouble-free as possible and treats the web material gently.
  • the retaining device is designed as a clamping device which has at least two movable clamping jaws, the clamping surfaces of which face one another and limit the passage opening, the clamping jaws scraping web material from the outside during the return of the press ring and reducing the passage opening to such an extent that the web material is jammed between them.
  • the strand runs through the opening of the press ring and the clamping device into the compression tube. While the press ring is at its outer dead center, the passage opening of the clamping device is closed to such an extent that it clamps the strand.
  • the diameter of the opening of the press ring is matched to the thickness of the strand so that the strand does not slide through the opening of the press ring while the press ring is moving from its outer dead center towards its inner dead center.
  • the clamping device closes as soon as the press ring has passed the clamping device, so that the clamping device then holds the strand and the strand slides through its opening during the further return of the press ring. Then a new work cycle of the press-in device begins.
  • the press-in device according to the invention it is ensured that the strand is not can get caught on the press ring, since the clamping device holds the strand during the second section of the return of the press ring, so that the strand is tensioned between the press ring and the clamping device.
  • the press-in device according to the invention thus works extremely reliably and trouble-free.
  • Another advantage of the press-in device according to the invention is that the path length transported per work cycle of the press-in device is precisely defined because it is equal to the length of the stretched strand section between the clamping device and the press ring at its outer dead center. As a result, the crumple effect is very uniform over the entire length of the continuously processed strand.
  • the press ring takes the strand of the web material with it by static friction during its advance, the press ring also being toroidal on its side facing the compression tube, so that the web material is protected.
  • the diameter of the opening of the press ring must be adapted to the thickness of the strand. If this diameter is too large in relation to the strand thickness, the strand can slide through the opening of the press ring when it is advanced so that the press ring does not take the strand with it.
  • exchangeable press rings with different diameters are preferably provided.
  • the diameter of the opening of the press ring can be changed, the opening being preferably delimited by an elastic section of the press ring and a gas pressure chamber surrounding the elastic section being formed in the press ring, in which the gas pressure can be adjusted.
  • the elastic section is more or less deflected radially inwards, so that the diameter of the opening depends on the gas pressure.
  • the press ring must be pressed into the compression tube.
  • a support tube is preferably provided, which is displaceably guided along the straight axis of the compression tube and coaxially supports the compression ring at its end facing the compression tube.
  • the support tube has smooth inner and outer sides, so that there is no risk that the web material passed through the support tube and the press ring and the web material already compressed in the compression tube get stuck on the support tube.
  • the displacement of the press ring takes place by means of any suitable device which can move the press ring back and forth between its two dead centers.
  • a crank gear driven by an electric motor is suitable for this purpose, which converts the rotary movement of the electric motor into a linear movement of the head of a crank loop, which acts on the press ring or - if a support tube is provided - on the latter.
  • the displacement of the press ring can also be effected by means of a pneumatic cylinder, the piston rod of which acts on the press ring or on the support tube.
  • the stroke of the crank mechanism or the pneumatic cylinder is preferably adjustable so that the outer dead center of the press ring is different depending on the stroke length set.
  • the path length transported with each work cycle or stroke and, in turn, the formation of folds can also be set: Short path length per stroke, ie. H. Small distance between the outer dead center and the clamping device results in smaller crumple folds, and a larger distance between the clamping device and the outer dead center results in coarser and larger crumple folds.
  • the clamping jaws can each be pivoted about a bearing point fixed to the device and can be loaded by at least one spring such that they are pressed elastically towards one another.
  • the clamping jaws On their sides facing away from the compression tube, the clamping jaws preferably form a concave surface which is adapted to the convex side of the compression ring facing the compression tube.
  • the jaws constantly assume their clamping position unless the press ring or its support tube is arranged between them.
  • the jaws are pressed apart during the advance by the press ring and the strand section compressed by it against the force of the spring or springs and automatically return to their clamped position after the press ring has passed them on its return.
  • This training is characterized by particular simplicity and reliability.
  • delivery rollers are preferably arranged in the transport direction of the web material in front of the press ring, which feed the web material from the template to the press ring. This relieves the pressure ring of the task of pulling the web material off the template.
  • the delivery rollers are driven intermittently during the advance of the press ring, in such a way that they promote the web length pressed into the upsetting cylinder per work cycle.
  • FIG. 1 is first dealt with.
  • the crumple system shown therein comprises a press-in device provided with the reference number 10, which will be explained in more detail with reference to FIG.
  • the upsetting pipe 14 is perforated and passed through a water bath contained in a tub 16.
  • the water bath has a temperature of approximately 100 ° C.
  • the crumpled folds of the web material compressed in the compression tube 14 are pre-fixed due to the high temperature of the water bath.
  • the strand 12 emerges from the upset tube bent upward at its end and the water bath, after which the strand passes through a first pair of squeeze rollers 18.
  • the strand passes through a cold water bath contained in a second trough 20, by means of which the wrinkles are subsequently fixed. After leaving the cold water bath, the strand 12 runs through a second pair of squeeze rollers 22. After leaving the second pair of squeeze rollers 22, the web material has permanent wrinkles and is fed to any further processing.
  • the press-in device 10 Since the invention relates to the press-in device 10, the remaining configuration of the crumple system is not essential to the invention. The above brief explanation of the remaining crumple system therefore only gives an example of a possible configuration of the crumple system, and the press-in device 10 according to the invention can also be used in conjunction with crumple system other than that described, provided the crumple system has a compression tube, the axis of which is in its initial region runs straight.
  • Figure 2 shows schematically and in more detail the press-in device 10, the strand 12 and the frame of the press-in device not being shown.
  • the initial region of the upsetting tube 14 is shown in FIG.
  • the upsetting tube provided with numerous holes 24 has a straight axis.
  • two guide rods 28 are arranged fixed to the device, of which only one guide rod is shown in FIG.
  • a cylindrical support tube 30 is guided on the guide rods 28 with the aid of guide bushes, not shown.
  • the axis of the cylindrical support tube 30 coincides with the straight axis of the upsetting tube 10.
  • the cylindrical support tube 30 has smooth inner and outer sides and has a funnel-shaped inlet opening 32 at its left end in FIG. 2. At its end facing the compression tube 14, the right end in FIG. 2, the support tube 30 carries a press ring 34.
  • This press ring 34 is at least on its outside, ie. H. its side facing the upsetting tube, is toroidal and has on its outer circumference a shoulder on which the right end of the support tube 30 in FIG. 2 rests.
  • the press ring 34 merges flush with the support tube 30 on the outside. It is detachably fastened to the support tube 30 by means of fastening means, not shown.
  • a circular opening 36 is formed, which lies in a plane perpendicular to the direction of movement of the support tube 30 and the center of which is arranged on the straight axis of the compression tube 14 and the support tube 30.
  • the press ring 34 By moving the support tube 30, the press ring 34 is displaced between an outer dead center shown in solid lines in FIG. 2 and an inner dead center, at which the press ring is arranged within the compression tube 14.
  • the contour of the press ring and the front end of the support tube 30 is shown as a dashed curve 38 in Figure 2.
  • the displacement of the support tube 30 and the press ring 34 is effected in the illustrated embodiment by a pneumatic cylinder 40 shown broken off in FIG. 2, which is arranged fixed to the device and whose piston rod 42 is connected to the support tube 30 via an arm 44.
  • any other suitable drive device can also be provided, which makes it possible to move the press ring 34 back and forth in a straight line between its two dead centers.
  • a crank gear driven by an electric motor is also suitable for this.
  • the cycle number of the cylinder 40 i. H. the number of work cycles per unit of time, and the stroke of the cylinder 40 are adjustable, but the inner dead center of the press ring 34 is not changed, but only the outer dead center is adjusted, namely brought at a coarser or smaller distance from the inlet opening 26 of the compression tube 14 becomes.
  • a clamping device 46 is arranged directly in front of the inlet opening 26 of the upsetting pipe 14.
  • this clamping device 46 comprises two clamping jaws, namely an upper clamping jaw 48 and a lower clamping jaw 50.
  • the clamping device can also have more than two clamping jaws, for example four clamping jaws.
  • Each jaw has a clamping surface 52 or 54.
  • the clamping surfaces 52 and 54 face each other and, in the state shown in FIG. 2, abut one another, so that the passage opening of the clamping device 46 delimited by the two clamping surfaces 52 and 54 is completely closed.
  • the sides of the clamping jaws 48 and 50 facing away from the upsetting tube 14 form a concave surface 56 which, in the exemplary embodiment shown, has a nap-shaped design.
  • This cup-shaped surface 56 is smooth and the compression ring 34 at its outer dead center turns.
  • Each jaw 48 and 50 is each attached to a lever 58 which is pivotable about a bearing point 60 fixed to the device.
  • the bearing points 60 are located on the side of the clamping jaws 48 and 50 facing away from the upsetting tube 14, so that the clamping jaws can pivot away from one another and thereby enlarge the passage opening of the clamping device when pressure is exerted on the surface 56.
  • the clamping device 46 and its distance from the entry opening 26 are dimensioned such that the passage opening can be opened at least to such an extent that the support tube 30 with the press ring 34 can be moved through the passage opening into the compression tube 14. Taking this condition into account, the clamping device 46 is arranged as close as possible to the upsetting pipe 14.
  • a spring 62 designed as a tension spring acts on each lever 58 and is suspended at its other end on an adjustable spring seat 64, by means of which the spring force can be adjusted.
  • the springs 62 elastically press the clamping jaws 48 and 50 towards one another, so that the clamping device 46 assumes the position shown in FIG. 2 in the idle state and the clamping jaws can be pressed apart against the forces of the springs 62.
  • the clamping force exerted by the clamping surfaces 52 and 54 can be adjusted by means of the adjustable spring seats 64.
  • delivery rollers 68 are rotatably mounted in a frame 66 fixed to the device.
  • the straight axis of the upsetting tube 14 and the support tube 30 runs through the nip of these delivery rollers.
  • the gap width of the delivery rollers 68 is adjustable and the delivery rollers can be driven in a controlled manner by a drive device, not shown.
  • the delivery rollers are driven intermittently during the advance of the press ring 34 from its outer dead center to its inner dead center, the delivery rollers 68 in each case conveying exactly the length of the web which is pressed by the press ring 34 into the upsetting cylinder 14 during each working cycle.
  • two lateral guide rollers are rotatably arranged on the frame 66, of which only one guide roller 70 is shown in FIG.
  • the axes of the guide rolls are perpendicular to the axes of the delivery rolls 68.
  • the mode of operation of the press-in device 10 described above is explained below.
  • the strand 12 not shown in FIG. 2 runs through the nip of the delivery rollers 68, the support tube 30, the opening 36 of the press ring 34, the through opening of the clamping device 46 and into the compression tube 14.
  • the gap width of the delivery rollers 68 is adapted to the strand thickness that the strand 12 is reliably promoted.
  • a press ring 34 is inserted with such a diameter of its opening 36 that the static friction between the press ring 34 and the strand is on the one hand so great that the press ring 34 entrains the strand during its advancement without the strand through the press ring 34 (to the left in Figure 2) slides back, and on the other hand is so small that the strand when the press ring 34 returns, can slide through it and be held by the clamping device 46.
  • the spring force of the springs 62 is set so that the clamping jaws 48 and 50 still reliably clamp the strand while the press ring runs back from the clamping device 46 to its outer dead center.
  • the number of cycles and stroke are set, a change in the stroke of the cylinder 40 only resulting in a change in the position of the outer dead center of the press ring 34, but not its inner dead center.
  • the position of the outer dead center determines the length of the strand section between the clamping device 46 and the press ring 34 at its outer dead center. This length influences the formation of wrinkles in such a way that longer lengths lead to coarser folds and smaller lengths lead to finer wrinkles.
  • the conveying speed of the web material and thus also the dwell time of the same in the water bath in the tub 16 are determined by the number of cycles and the stroke of the cylinder 40.
  • the elements of the press-in device assume the position shown in FIG. 2, although it must be taken into account that the strand runs through the press-in device 10 in the manner described above.
  • the strand is slightly stretched between the clamping device 46 and the press ring 34.
  • the strand lies loosely in the support tube 20.
  • the strand section between the press ring 34 and the clamping device is compressed and compressed.
  • the pressure exerted by the press ring 34 on the compressed strand section on the surface 56 becomes so strong that the clamping jaws 48 and 50 pivot about their bearing points 60 against the spring forces of the springs 62 and the press ring 34 pushes the compressed section through the passage opening of the clamping device and can press the inlet opening 26 of the compression tube 14 into the compression tube 14.
  • the support tube 30 also passes through the clamping device 46. In the upsetting tube 14, the strand already present there is pushed further by the strand section additionally conveyed into the upsetting tube in this work cycle.
  • the press ring 34 then begins its return.
  • the strand section last pressed into the compression tube 14 relaxes somewhat, while the press ring 34 the material clamped in its opening 36 is initially carried without sliding.
  • the jaws 48 and 54 slide over the outside of the support tube 30 and the press ring 34 until finally the surface 56 of the clamping device and the outside of the press ring 34 are in contact and the jaws 48 and 50 can increasingly approach each other .
  • the clamping jaws 48 and 50 thereof strip off any material possibly lying on the outside of the press ring 34 from the press ring.
  • the passage opening of the clamping device 46 is finally closed to such an extent that the clamping surfaces 52 and 54 clamp the strand directly behind the press ring 34, ie to the right of this in FIG. 2.
  • the strand slides through the opening 36 of the press ring 34, the strand being slightly tensioned between the clamping device and the press ring 34.
  • the length of the strand section sliding until the outer dead center is reached by the press ring 34 is the web length conveyed and pressed in per working cycle of the press-in device and is replenished by the delivery rollers 68 during the advance of the press ring 34.
  • the delivery rollers 68 can also work continuously if the storage space between the press ring 34 and the delivery rollers 68 is sufficient to hold the continuously conveyed web material.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Forging (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
EP80103689A 1979-06-30 1980-06-30 Einpressvorrichtung für eine kontinuierlich arbeitende Knautschanlage Expired EP0021450B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2926478 1979-06-30
DE19792926478 DE2926478A1 (de) 1979-06-30 1979-06-30 Einpressvorrichtung fuer eine kontinuierlich arbeitende knautschanlage

Publications (2)

Publication Number Publication Date
EP0021450A1 EP0021450A1 (de) 1981-01-07
EP0021450B1 true EP0021450B1 (de) 1983-10-26

Family

ID=6074595

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80103689A Expired EP0021450B1 (de) 1979-06-30 1980-06-30 Einpressvorrichtung für eine kontinuierlich arbeitende Knautschanlage

Country Status (3)

Country Link
US (1) US4407052A (enrdf_load_stackoverflow)
EP (1) EP0021450B1 (enrdf_load_stackoverflow)
DE (1) DE2926478A1 (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2926478A1 (de) * 1979-06-30 1981-01-22 Edelmann Maschf Einpressvorrichtung fuer eine kontinuierlich arbeitende knautschanlage
DE2932495A1 (de) * 1979-08-10 1981-02-26 Edelmann Maschf Kontinuierlich arbeitende knautschanlage fuer bahnmaterial
EP0158777B1 (de) * 1984-04-18 1988-04-13 Kurt Kleber Vorrichtung zur Herstellung von Knautschplissee-Faltenmustern in Stoffbahnen
GB2566250A (en) 2017-06-20 2019-03-13 Petit Pli Ltd Garment pleating

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2851206A (en) * 1954-08-03 1958-09-09 Bancroft & Sons Co J Random pleating of fabric
DE1093171B (de) * 1957-03-26 1960-11-17 Forkardt Paul Kg Spanneinrichtung, insbesondere Vorschubzange fuer umlaufende Werkstuecke an Drehmaschinen
US3640442A (en) * 1970-03-16 1972-02-08 Gilbert T Lyon Stock pusher
DE2151004A1 (de) * 1971-10-13 1973-04-19 Sistig Kg Leo Vorrichtung zum knautschen von stoffen
US4006516A (en) * 1973-03-30 1977-02-08 Deering Milliken Research Corporation Process for imparting a crushed appearance to pile fabric
SU478782A1 (ru) * 1973-12-19 1975-07-30 Предприятие П/Я В-2615 Устройство дл укупорки сосудов
DE2406503A1 (de) * 1974-02-12 1975-08-21 Vepa Ag Druckkammer zur kontinuierlichen, vorzugsweise daempfenden behandlung von insbesondere synthesefasern
US3987519A (en) * 1975-09-15 1976-10-26 J. P. Stevens & Co., Inc. Apparatus for crushing cloth
US4134187A (en) * 1977-12-27 1979-01-16 Joan Fabrics Corporation Pile fabric crushing apparatus
DE2926478A1 (de) * 1979-06-30 1981-01-22 Edelmann Maschf Einpressvorrichtung fuer eine kontinuierlich arbeitende knautschanlage
DE2932495A1 (de) * 1979-08-10 1981-02-26 Edelmann Maschf Kontinuierlich arbeitende knautschanlage fuer bahnmaterial

Also Published As

Publication number Publication date
EP0021450A1 (de) 1981-01-07
DE2926478A1 (de) 1981-01-22
DE2926478C2 (enrdf_load_stackoverflow) 1988-10-27
US4407052A (en) 1983-10-04

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