EP1046731A1 - Kardiervorrichtung, insbesondere zur Vorbereitung von Vliesen für Faserverbundmaterialien - Google Patents

Kardiervorrichtung, insbesondere zur Vorbereitung von Vliesen für Faserverbundmaterialien Download PDF

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Publication number
EP1046731A1
EP1046731A1 EP20000108417 EP00108417A EP1046731A1 EP 1046731 A1 EP1046731 A1 EP 1046731A1 EP 20000108417 EP20000108417 EP 20000108417 EP 00108417 A EP00108417 A EP 00108417A EP 1046731 A1 EP1046731 A1 EP 1046731A1
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EP
European Patent Office
Prior art keywords
cylinder
finned
web
carding apparatus
cylinders
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.)
Granted
Application number
EP20000108417
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English (en)
French (fr)
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EP1046731B1 (de
Inventor
Giovanni Bacchio
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.)
FINCARDE S.P.A.
Original Assignee
For Ing Graziano SpA
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Application filed by For Ing Graziano SpA filed Critical For Ing Graziano SpA
Publication of EP1046731A1 publication Critical patent/EP1046731A1/de
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Publication of EP1046731B1 publication Critical patent/EP1046731B1/de
Anticipated expiration legal-status Critical
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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 present invention relates to carding apparatus, particularly for producing webs for non-woven fabrics, of the type comprising:
  • a first object of the invention is to provide carding apparatus of the type defined above which can operate at high speed without giving rise to alterations in the web due, in particular, to the air-flows produced by the rotating members and to the resistance of the air to the forward movement of the web.
  • a second object of the invention is to provide carding apparatus of the above-mentioned type in which fibre-randomizing means are interposed between each of the output combing cylinders and the respective doffer cylinder, and which can operate at high speed without giving rise to alterations in the web.
  • the final swift of a carding apparatus rotates clockwise and is indicated 1, and two output combing cylinders, disposed at different heights and both rotating anticlockwise, are indicated 2 and 3.
  • the upper combing cylinder 2 takes an upper web of fibres from the swift 1 and orients it parallel to the direction of advance.
  • the combing cylinder 2 cooperates with a doffer cylinder 4 which rotates anticlockwise and has a peripheral velocity slightly greater than that of the combing cylinder 2.
  • the clothing of the doffer cylinder 4 is "neutral", since it has isosceles triangular tips.
  • the fibres are transferred from the swift 1 to the conveyor 5 entirely on the lower portions of the combing cylinder 2 and of the doffer cylinder 4.
  • the doffer cylinder 4 releases an upper web V 1 of fibres oriented parallel to the direction of advance onto the initial active portion 5a of a conveyor belt 5 having a final active portion 5b which is inclined steeply downwards.
  • a control cylinder 6 having a closely-packed set of peripheral fins acts on the web supplied to the input of the initial portion 5a immediately downstream of the doffer cylinder 4.
  • the cylinder 6 is supported by a structure 7 which is movable vertically relative to a fixed support structure, schematically indicated 8, between a lowered, working position in which the fins of the cylinder 6 are in contact with the web and a raised, rest position which allows the web to be positioned manually at the start of the operation.
  • the cylinder 6 is driven by its own variable-speed drive motor and rotates anticlockwise.
  • the cylinder 6 accompanies and controls the web V 1 and conveys the air-flows produced by the rotating members, thus constituting an integral part of the conveyor system.
  • a flap 9 extending horizontally from the base of the movable structure 7 is disposed transversely relative to the initial active portion 5a of the conveyor 5 and is spaced a small vertical distance therefrom.
  • the flap 9 has the function of controlling the sudden change in atmospheric pressure which arises during the movement from the region in which the web V 1 is controlled by the rotating cylinders 2, 4 and 6 to the region in which the web is released onto the conveyor 5.
  • a control cylinder also having a closely-packed peripheral set of fins, acts on the web V 1 in the region of the guide roller 10.
  • An auxiliary conveyor belt which controls the path of the web V 1 on the inclined active portion 5b of the conveyor belt 5 is indicated 12.
  • the conveyor belt 12 has an active portion 12a which is disposed adjacent the inclined portion 5b and is subject, centrally, to the action of a regulating roller 13.
  • the lower combing cylinder 3 takes a lower web of fibres from the swift 1 and orients them parallel to the direction of advance.
  • the combing cylinder 3 cooperates with a doffer cylinder 4a which releases a lower web V 2 of fibres oriented parallel to the direction of advance onto a substantially horizontal conveyor belt 15.
  • a control cylinder 16 having a closely-packed peripheral set of fins acts on the conveyor 15 immediately downstream of the doffer cylinder 4a.
  • the cylinder 16 is supported by a structure 17 which is movable relative to a fixed support structure 8, in the same manner as described with reference to the control cylinder 6.
  • a flap 18 extends horizontally from the base of the movable structure 17.
  • the functions performed by the cylinder 16 and by the flap 18 in relation to the lower web V 2 correspond to those performed by the cylinder 6 and the flap 9 in relation to the web V 1 , as described above.
  • the web V 1 supplied by the inclined active portion 5b of the conveyor 5 is deposited on the web V 2 transported by the active portion of the lower conveyor 15, thus forming a web V 3 resulting from the superimposition of the two above-mentioned webs.
  • a control cylinder 19 acts on the web V 3 - in the vicinity of the region in which the two webs V 1 , V 2 are superimposed; in the same manner as the above-described cylinders 6 and 16, the control cylinder 19 has a closely-packed peripheral set of fins and is supported by a structure 20 which is movable relative to a support structure 8 and from the base of which a transverse flap 21 extends horizontally.
  • the finned cylinder 19 and the flap 21 have the same functions in relation to the web V 3 as are performed by the cylinder 6 and by the flap 9 in relation to the web V 1 and by the cylinder 16 and by the flap 18 in relation to the web V 2 .
  • the device described above produces webs which have fibres oriented parallel to the direction of advance and which are usable - after subsequent known operations for rendering them cohesive (calendering, needle-felting and resin-bonding) - in the production of strips for non-woven fabrics.
  • This variant differs from the embodiment shown in Figure 1 in that a randomizer cylinder 22, 24 which rotates clockwise is interposed between each combing cylinder 2, 3 rotating anticlockwise and the respective doffer cylinder 4, 4a, and in that each doffer cylinder 4, 4a also rotates clockwise.
  • the speed of the combing cylinders 2, 3 is much faster than that of the randomizer cylinders 22 and 24 which have clothings the tips of which are oriented in the opposite direction to those of the clothings of the combing cylinders 2 and 3, the fibre arriving tends to become entangled in the spirals of the clothings of the randomizer cylinders 22 and 24, accumulating and adopting a random arrangement.
  • the transportation of the randomly-arranged fibres from the randomizer cylinder 22 to the doffer cylinder 4 is controlled by a peripherally finned control cylinder 23 which cooperates with the cylinders 22 and 4 in order to accompany and control the web of fibres and to convey the air-flows produced by the rotation of these cylinders.
  • the control cylinder 23 is supported by an appendage 7a of the movable structure 7 which, as previously described, supports the control cylinder 6 and the flap 9.
  • the transportation of the randomly-arranged fibres from the randomizer cylinder 24 to the doffer cylinder 4a is controlled by a peripherally finned control cylinder 25 which cooperates with the cylinders 24 and 4a to accompany and control the web of fibres and to convey the air-flows produced by the rotation of these cylinders.
  • control cylinder 25 is supported by an appendage 17a of the structure 17 which, as previously described with reference to Figure 1, supports the control cylinder 16 and the flap 18.
  • the embodiment shown in Figure 2 can produce webs of randomized fibres (that is, fibres distributed statistically in a random manner) which, after they have been rendered cohesive, can be used in the production of non-woven fabrics.
  • Figures 3 and 4 show a first embodiment of a peripherally finned control cylinder, that is, of one of the cylinders indicated by the reference numerals 6, 11, 16 and 19 in Figures 1 and 2 and by the reference numerals 23 and 25 in Figure 2.
  • the control cylinder is generally indicated A and is constituted by a cylindrical tube 26 on which metal disks 27 are mounted radially with the interposition of annular metal spacers 28 having radial side walls.
  • the assembly constituted by the disks 27 and the respective spacers 28 is clamped on the tube 26 by two ring nuts (not shown) which are screwed onto the threaded ends of the tube 26 and act on the two end spacers.
  • the cylinder A accompanies and controls the web and conveys the air-flows produced by the rotating members.
  • a control cylinder B has a helical set of fins produced by the insertion and fixing of a thin metal strip 29 in a helical groove 30 formed in the surface of a metal cylinder or tube.
  • a finned control cylinder C is constituted by a cylindrical tube 32 on which metal disks 33 are mounted obliquely with the interposition of annular metal spacers 34 each having two inclined side walls which are parallel to one another.
  • the angle of inclination selected for the disks 33 is such that, as a result of a rotation of the cylinder C through 360°, the path travelled by the periphery of each disk 33 corresponds to the axial distance between two adjacent disks.
  • the fins are not radial and, at high speeds, they thus generate an air-flow which, as a result of the presence of the flaps which are associated with these cylinders as described above, produces a slight pressure on the surface of the web which prevents detachment of the web in the spaces between the fins.
  • All of the finned cylinders described above are driven independently by means of variable-speed motors, so that they can also be used to bring about condensation or stretching effects on the web in transit.
  • a movable structure is in the form of a frame which supports the two control cylinders 23 and 6, both having peripheral fins.
  • control cylinder 23 acts on the web in order to control the transportation, to the doffer cylinder 4, of the fibres arranged randomly in the randomizer cylinder 22, and the control cylinder 6 acts on the web downstream of the doffer cylinder 4 in order to control the supply of the fibres to the initial active portion 5a of the conveyor 5.
  • the frame-like movable support structure 35 is constituted by two longitudinal arms 36 and 37 which are connected at one end by a pin 38 by means of which the movable structure 35 is articulated about a horizontal axis relative to a fixed structure 39.
  • the two arms 36 and 37 are connected to one another in the region of their ends remote from the articulation pin 38 by a box-sectioned sheet-metal cross-member 40.
  • the lower portion 9 of the cross-member 40 is shaped so as to constitute a flap which, as described above, cooperates with the web which is released onto the initial active portion 5a of the conveyor 5 to reduce the adverse effects due to the sudden changes in pressure which arise at the web-release points.
  • the support structure 35 can be moved from the lowered working position, shown in solid outline in Figure 9, to a raised, rest position, shown in broken outline, by means of two flexible cables 41 (only one of which is visible in Figure 9), each of which is fixed, at one end, to the end of a respective longitudinal arm 36 and 37 remote from the articulation pin 38.
  • a double-acting hydraulic jack 44 which is carried by the fixed structure 36.
  • the fixed structure 39 carries - as shown in Figure 10 - two pneumatic jacks 45, 46 the movable rods of which are engaged in corresponding holes 47 in the outer ends of the two longitudinal arms 36, 37 when the movable structure 35 is in the lowered, working position.
  • two pneumatic jacks 45, 46 the movable rods of which are engaged in corresponding holes 47 in the outer ends of the two longitudinal arms 36, 37 when the movable structure 35 is in the lowered, working position.
  • One of these holes 47 is visible in Figure 11.
  • peripherally finned control cylinders 23, 6 are rotated by respective variable-speed motors, indicated 49 and 50.
  • the cylinders 23 and 6 are also supported by the movable structure 35 in a manner such that their positions relative to the structure can be adjusted both vertically and horizontally.
  • each of the two end pins 51 of each cylinder 23, 6 is engaged in a hole 52 formed in the lower portion of a support plate 53 which has an upper horizontal slot 54.
  • Each plate 53 is housed in a recess 55 of greater width which is formed in the outer wall of the respective longitudinal arm 36, 37 and which has a vertical slot 56.
  • a screw 57 extends through the horizontal slot 54 of each plate 53 and the vertical slot 56 of the respective recess 55.
  • the screw 57 is locked by means of a nut 58 which reacts against the inner surface of the respective longitudinal arm 36, 37 in order to clamp the plate 53 in the recess 55 in the position corresponding to the desired position of the pin of the respective control cylinder.
  • the plate 53 is prevented from moving, after the screw 57 has been locked, by a vertical stop screw 59 which engages the upper face of the plate 53 and by a horizontal stop screw 60 which engages one of the side faces of the plate 53.
  • the plate 53 could have a vertical slot and the recess 55 could have a horizontal slot.
  • a similar device is used for adjusting the position of the cross-member 40, and hence of the flap 9, both vertically and horizontally relative to the movable support structure 35.
  • each of the ends of the box-sectioned cross-member 40 is connected to a plate 53a, the position of which is adjustable in the same manner as described above, in a recess 55a of the respective longitudinal arm 36, 37 by means of a clamping screw 57a, a vertical stop screw 59a and a horizontal stop screw 60a.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Medicinal Preparation (AREA)
EP20000108417 1999-04-20 2000-04-18 Kardiervorrichtung, insbesondere zur Vorbereitung von Vliesen für Faserverbundmaterialien Expired - Lifetime EP1046731B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO990311 1999-04-20
ITTO990311 IT1307247B1 (it) 1999-04-20 1999-04-20 Carda, particolarmente per la preparazione di veli per tessuti nontessuti.

Publications (2)

Publication Number Publication Date
EP1046731A1 true EP1046731A1 (de) 2000-10-25
EP1046731B1 EP1046731B1 (de) 2003-09-03

Family

ID=11417738

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000108417 Expired - Lifetime EP1046731B1 (de) 1999-04-20 2000-04-18 Kardiervorrichtung, insbesondere zur Vorbereitung von Vliesen für Faserverbundmaterialien

Country Status (4)

Country Link
EP (1) EP1046731B1 (de)
DE (1) DE60004916T2 (de)
ES (1) ES2204392T3 (de)
IT (1) IT1307247B1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2830263A1 (fr) * 2001-10-03 2003-04-04 Thibeau Procede et installation pour la production d'un non-tisse condense, et dispositif de condensation d'un non-tisse
EP1371760A1 (de) * 2002-06-10 2003-12-17 Fincarde S.p.A. Karde zur Vorbereitung von randomisierten Vliesen für Vliesstoffe
EP1589132A1 (de) * 2004-04-22 2005-10-26 Thibeau Karde mit einer drehbaren Absaugübertragungsvorrichtung
US7416638B2 (en) 2003-11-18 2008-08-26 Georgia-Pacific Consumer Products Lp Apparatus and method for manufacturing a multi-layer web product
CN112706337A (zh) * 2020-12-03 2021-04-27 滁州奥利斯特环保科技有限公司 一种用于生产高致密性口罩原料的装置
IT202000019006A1 (it) * 2020-08-03 2022-02-03 Technoplants S R L Macchina cardatrice

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3018284B1 (fr) * 2014-03-07 2016-07-08 Andritz Perfojet Sas Installation de carde et procede de demarrage d'une telle installation

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE97173C (de) *
US3867741A (en) * 1973-04-13 1975-02-25 Veniamin Dmitrievich Frolov Method of aerodynamic formation for a fibrous layer from fibers treated on a carding machine and apparatus for performing this method
DE2403333A1 (de) * 1974-01-24 1975-07-31 Krupp Gmbh Verfahren zur kontinuierlichen bildung eines vlieses aus in einer krempel oder karde erzeugtem flor und vorrichtung zur durchfuehrung des verfahrens
EP0484812A1 (de) * 1990-11-06 1992-05-13 FA-MA JERSEY S.p.A. Vorrichtung für die Bildung eines mehrschichtigen Vlieses aus zufallsorientierten Fasern sowie ein mit dieser Vorrichtung angefertigtes Vlies
EP0521832A1 (de) * 1991-06-28 1993-01-07 Nicola Napolitano Trommelkarde zur Herstellung von Verbundstoffen und Vliesen aus Naturfasern oder synthetischen Fasern
FR2770855A1 (fr) * 1997-11-07 1999-05-14 Asselin Procede et dispositif pour produire une nappe textile

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE97173C (de) *
US3867741A (en) * 1973-04-13 1975-02-25 Veniamin Dmitrievich Frolov Method of aerodynamic formation for a fibrous layer from fibers treated on a carding machine and apparatus for performing this method
DE2403333A1 (de) * 1974-01-24 1975-07-31 Krupp Gmbh Verfahren zur kontinuierlichen bildung eines vlieses aus in einer krempel oder karde erzeugtem flor und vorrichtung zur durchfuehrung des verfahrens
EP0484812A1 (de) * 1990-11-06 1992-05-13 FA-MA JERSEY S.p.A. Vorrichtung für die Bildung eines mehrschichtigen Vlieses aus zufallsorientierten Fasern sowie ein mit dieser Vorrichtung angefertigtes Vlies
EP0521832A1 (de) * 1991-06-28 1993-01-07 Nicola Napolitano Trommelkarde zur Herstellung von Verbundstoffen und Vliesen aus Naturfasern oder synthetischen Fasern
FR2770855A1 (fr) * 1997-11-07 1999-05-14 Asselin Procede et dispositif pour produire une nappe textile

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2830263A1 (fr) * 2001-10-03 2003-04-04 Thibeau Procede et installation pour la production d'un non-tisse condense, et dispositif de condensation d'un non-tisse
EP1300492A1 (de) * 2001-10-03 2003-04-09 Thibeau Verfahren und Anlage zur Herstellung eines verdichteten Vliesstoffes und Vorrichtung zur Verdichtung eines Vliesstoffes
US6732412B2 (en) 2001-10-03 2004-05-11 Thibeau Method and installation for the production of a condensed nonwoven and condenser device
EP1371760A1 (de) * 2002-06-10 2003-12-17 Fincarde S.p.A. Karde zur Vorbereitung von randomisierten Vliesen für Vliesstoffe
US7416638B2 (en) 2003-11-18 2008-08-26 Georgia-Pacific Consumer Products Lp Apparatus and method for manufacturing a multi-layer web product
US7578902B2 (en) 2003-11-18 2009-08-25 Georgia-Pacific Consumer Products Lp Apparatus and method for manufacturing a multi-layer web product
US7862690B2 (en) 2003-11-18 2011-01-04 Georgia-Pacific Consumer Products Lp Apparatus and method for manufacturing a multi-layer web product
EP1589132A1 (de) * 2004-04-22 2005-10-26 Thibeau Karde mit einer drehbaren Absaugübertragungsvorrichtung
IT202000019006A1 (it) * 2020-08-03 2022-02-03 Technoplants S R L Macchina cardatrice
EP3951031A1 (de) * 2020-08-03 2022-02-09 Technoplants S.R.L. Kardiermaschine
CN112706337A (zh) * 2020-12-03 2021-04-27 滁州奥利斯特环保科技有限公司 一种用于生产高致密性口罩原料的装置

Also Published As

Publication number Publication date
DE60004916D1 (de) 2003-10-09
ES2204392T3 (es) 2004-05-01
ITTO990311A1 (it) 2000-10-20
EP1046731B1 (de) 2003-09-03
IT1307247B1 (it) 2001-10-30
DE60004916T2 (de) 2004-07-22

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