EP0586413B1 - Method of fixing card clothing to carrier cylinder - Google Patents

Method of fixing card clothing to carrier cylinder Download PDF

Info

Publication number
EP0586413B1
EP0586413B1 EP92909783A EP92909783A EP0586413B1 EP 0586413 B1 EP0586413 B1 EP 0586413B1 EP 92909783 A EP92909783 A EP 92909783A EP 92909783 A EP92909783 A EP 92909783A EP 0586413 B1 EP0586413 B1 EP 0586413B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
card clothing
slot
strip
clip
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 - Lifetime
Application number
EP92909783A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0586413A1 (en
Inventor
William Holdsworth
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.)
James Holdsworth and Brothers Ltd
Original Assignee
James Holdsworth and Brothers Ltd
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 James Holdsworth and Brothers Ltd filed Critical James Holdsworth and Brothers Ltd
Publication of EP0586413A1 publication Critical patent/EP0586413A1/en
Application granted granted Critical
Publication of EP0586413B1 publication Critical patent/EP0586413B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/30—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls
    • D01H4/32—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls using opening rollers
    • 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
    • D01G15/84—Card clothing; Manufacture thereof not otherwise provided for
    • D01G15/92—Attaching card clothing to carding elements
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G19/00—Combing machines
    • D01G19/06—Details
    • D01G19/10—Construction, mounting, or operating features of combing elements
    • D01G19/105—Combing cylinders

Definitions

  • This invention relates to a method of fixing card clothing to the surface of a carrier cylinder or roll e.g. a doffer roll which forms part of a high pile fabric knitting machine, and to a card clothing assembly for securement to a carrier cylinder.
  • a carrier cylinder or roll e.g. a doffer roll which forms part of a high pile fabric knitting machine
  • High pile fabric knitting machines usually comprise rotary knitting machines provided with a plurality of carding heads, constituting fibre transfer and feeding units, for supplying carded sliver fibres to the knitting needles.
  • the knitting needles are mounted independently in a cylinder, which is rotatable relative to the several carding heads disposed at circumferentially spaced locations around the cylinder.
  • the carding heads for feeding carded sliver fibres to the needles of high pile fabric knitting machines are constituted of at least one pair of rotatable sliver feed rolls - usually having wire-covered or fluted peripheries - a rotatable wire-covered main cylinder and a rotatable wire-covered doffer.
  • the sliver feed rolls draw sliver in rope form from a source of supply, and deliver the fibres in sheet form, to the main cylinder.
  • the latter acting as a transfer medium, conveys the sheet of sliver fibres to the doffer which, in turn, feeds the fibres to the needles of the knitting machine.
  • the main cylinder is caused to rotate faster than the sliver feed rolls, and the doffer is caused to rotate faster than the main cylinder.
  • a further disadvantage of existing types of card clothing is that the bases of the card clothing teeth which are anchored in the foundation of the clothing are liable to make indentations in the surface of the roll over a period of time, unless a protective tape covering is first stuck onto the surface of the roller, which is a further process step in existing application of card clothing to doffer rolls, which is a further labour cost, and a further source of possible imperfections in the application of the card clothing to the doffer roll.
  • DE-C-15632 discloses a method of fixing card clothing to the surface of a carrier cylinder having a slot in its outer periphery, the card clothing comprising an elongate strip of material having opposed ends and having wire carding teeth carried by the strip of material and projecting from one side thereof so as to form a substantially uniform distribution of carding teeth throughout the outer periphery of the cylinder.
  • US-1084786 which represents the closest prior art, discloses a card clothed roller which has a slit in its outer surface.
  • the ens of the card clothing are received in the slit, where they are located between the arms of a "tuning fork” tensioner.
  • Appropriate flats are provided on the end of the tensioner by which it can be engaged and made to rotate, to tighten the card clothing around the roller.
  • the present invention has been developed with a view to providing an improved means for mounting on a carrier cylinder or roll, for example a doffer roll, a single elongate piece of card clothing which is rectangular as seen in plan and which can be applied around the cylinder so as to bring the ends of the piece into abutment with each other and thereby to form a substantially uniform distribution of wire covered clothing on the outer periphery of the cylinder.
  • a carrier cylinder or roll for example a doffer roll
  • a single elongate piece of card clothing which is rectangular as seen in plan and which can be applied around the cylinder so as to bring the ends of the piece into abutment with each other and thereby to form a substantially uniform distribution of wire covered clothing on the outer periphery of the cylinder.
  • the invention is referred to a method of fixing card clothing to the surface of a carrier cylinder having a slot in its outer surface, the card clothing comprising an elongate strip of material having opposed ends which abut one another when the clothing is applied around the cylinder, wire carding teeth carried by the strip of material and projecting from one side thereof so as to form a substantially uniform distribution of carding teeth throughout the outer periphery of the cylinder.
  • the invention is characterised in that the material of the elongate strip is resilient, and in that an elongate carrier web is secured to the said elongate strip, the web having opposed ends which each project longitudinally beyond a respective end of the strip, the method comprising:
  • the clip slides along the slot and the fit between the opposed walls of the slot and the opposed limbs of the clip is such as to provide a slidable interengagement and also a tendency to exert an inward force on the limbs of the clip towards each other in order to further tighten the grip exerted on the opposed ends of the carrier web by the clip.
  • This invention therefore enables carrier cylinders, such as doffer rolls to be"clothed"much more quickly than with techniques employed with known arrangements of card clothing.
  • a frusto-conical guide may be used having a slot to be lined-up with the slot in the carrier cylinder, and having a maximum diameter corresponding substantially with the diameter of the cylindrical surface of the carrier cylinder, so that a loop of card clothing can be initially fitted on the conical guide, with the clip fitting in the slot in the guide, and then the loop of card clothing is pushed in a direction towards the carrier cylinder which causes the loop to expand circumferentially (which is permitted by extension of the elongate strip of resilient material to a limited extent), and then can be transferred by a sliding movement easily onto the cylinder surface of the carrier cylinder.
  • the clip continues its movement into the slot of a carrier cylinder, and once the card clothing has been fully pushed onto the carrier cylinder, a tight fit will be maintained by reason of the pre-tension in the strip of resilient material caused by the circumferential expansion of the loop as it travels along the frusto conical guide.
  • this frusto conical guide provides for a very simplified procedure, and which can be carried out quickly and reliably, in the assembly of card clothing on the carrier cylinder.
  • the invention is referred to a carrier cylinder having card clothing applied to a surface, the cylinder having a slot in its outer surface, the card clothing comprising (a) an elongate strip of material having opposed ends which abut one another when the clothing is applied around the cylinder, (b) wire carding teeth carried by the said strip of material and projecting from one side thereof so as to form a substantially uniform distribution of carding teeth throughout the outer surface of the cylinder when the card clothing is assembled therewith.
  • the invention is characterised in that the material of the elongate strip is resilient, and in that the card clothing includes an elongate carrier web secured to the elongate strip of resilient material and having opposed ends which each project longitudinally beyond a respective end of the strip, the projecting ends of the strip being received in an elongate U-shaped fastening clip to complete a loop formation extending around the outer surface of cylinder, the clip fitting in the axial slot in the outer surface of the carrier cylinder.
  • FIG. 1 there is shown an elongate piece of card clothing which is designated generally by reference 100, and which is rectangularly, as seen in plan, and which comprises an elongate strip 101 of resilient material having opposed ends 102 which abut on another when the clothing is wrapped around the cylindrical surface of a carrier cylinder.
  • Figure 1 shows the ends 102 in abutment, after the formation of the flat strip shown in Figures 2 and 3 into a circular loop.
  • Wire carding teeth 103 are carried by the resilient strip 101 and project from one side thereof so as to be able to form a substantially uniform distribution of carding teeth throughout the outer periphery of the cylinder when the loop of card clothing is applied to the cylinder.
  • An elongate carrier web 104 is secured to the resilient strip 101, and is made of plies of textile material. Not only does the web 104 comprise a carrier or foundation for the card clothing, but it also serves to prevent contact between the base of the carding teeth 103 coming into contact with the metal surface of the carrier cylinder, which would otherwise give rise to indentations and abrasion over a period of time.
  • the carrier web 104 is longer than the strip 101, and therefore has opposed ends 105 which each project longitudinally beyond the respective end 102 of the strip 101. These projecting ends 105 can be folded so as to project inwardly of the looped form of the card clothing shown in Figure 1, and also extend alongside one another.
  • the clip 106 and the ends 105 could be fitted into one another by relative longitudinal sliding movement.
  • the closed loop of card clothing can then be fitted onto the cylindrical outer periphery of a carrier cylinder, which in the illustrated arrangement comprises a doffer roll 107 having a cylindrical surface 108.
  • An axially extending slot 109 (see Figure 2) is formed in the cylindrical wall of the roll 107, and this serves to receive the clip 106 and the carrier web ends 105 trapped between the limbs of the clip 106.
  • the doffer roll 107 can be of standard design for use as part of a high pile fabric knitting machine, and the only modification to this standard design which is required to carry out the method of the invention is to form the axially extending slot 109 in the periphery of the roll.
  • the clip 106 slides along the slot 109 and the fit between the opposed walls 111 of the slot 109 and the opposed limbs of the clip 106 is such as to provide a slidable interengagement, and also an inward pinching action on the limbs which further tightens the grip exerted on the opposed ends 105 of the carrier web 105 by the clip 106.
  • a frusto conical guide 112 may be used, having a maximum diameter 113 which corresponds substantially with the diameter of the cylindrical surface 108, and also having an axial slot (not shown in Figure 4) which can be lined-up with the slot 109, so that the looped card clothing can be advanced over the surface of the guide 112, with the clip 106 and the ends 105 being guided by the slot in the guide 112, and during this movement the loop can expand circumferentially as it is pushed towards the roll 107, which is permitted by extension of the elongate strip 101.
  • it can then move smoothly from the frusto conical guide 112 and onto the cylindrical surface 108, and with the clip 106 entering smoothly into the slot 109 in the cylindrical wall of the roll 107.
  • the U-shaped elongate clip 106 therefore forms a simple and yet very reliable means for holding the projecting ends 105 of the looped card clothing assembly, and which can be quickly and easily slid into the slot in the carrier cylinder.
  • the invention therefore provides a much simplified means of assembly of card clothing on a roll, such as a doffer roll, resulting in substantial saving of labour costs. Also, by this simple modification of existing designs of doffer roll, the card clothing can be easily assembled. Further, this is a significant commercial advantage to manufacturers and users of knitting machines.
  • High pile fabric knitting machines have many uses, one of which comprises the formation of "fur fabric” e.g. of the type used to form the covering of furry toy animals (teddy bears), and the invention will be a particular advantage in these uses of knitting machines.
  • FIGs 1 to 5 are schematic illustrations of examples of the invention, and in particular Figures 4 and 5 show a preferred method of assembly of card clothing on a cylindrical carrier.
  • Figures 6 to 8 show practical constructions of means for carrying out the method of assembly steps shown schematically in Figures 4 and 5.
  • a cylindrical carrier in the form of a knitting roller designated by reference 120 has a card clothing ring 121 arranged around its periphery, and which has its free projecting ends (not shown in detail), but equivalent to projecting ends 105 shown in Figure 2, received in an axially extending slot 122 (see Figure 8) in the periphery of roller 120, and which are retained in this position by means of retaining clip 123.
  • Figure 6 shows use of a mounting sleeve 124 which is used in order to slide card clothing ring 121 and retaining clip 123 axially onto the outer periphery of knitting roller 120, in generally similar manner to that described above with reference to Figure 4.
  • Figure 7 shows use of the same components, in order to disassemble the card clothing ring.
  • Figure 8 is an end view of the card clothing ring assembled around the outer periphery of knitting roller 120.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Adhesives Or Adhesive Processes (AREA)
EP92909783A 1991-05-25 1992-05-19 Method of fixing card clothing to carrier cylinder Expired - Lifetime EP0586413B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9111373 1991-05-25
GB919111373A GB9111373D0 (en) 1991-05-25 1991-05-25 Method of fixing card clothing to carrier cylinder
PCT/GB1992/000908 WO1992021801A1 (en) 1991-05-25 1992-05-19 Method of fixing card clothing to carrier cylinder

Publications (2)

Publication Number Publication Date
EP0586413A1 EP0586413A1 (en) 1994-03-16
EP0586413B1 true EP0586413B1 (en) 1996-03-13

Family

ID=10695638

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92909783A Expired - Lifetime EP0586413B1 (en) 1991-05-25 1992-05-19 Method of fixing card clothing to carrier cylinder

Country Status (10)

Country Link
EP (1) EP0586413B1 (ru)
JP (1) JP3222889B2 (ru)
CN (1) CN1032772C (ru)
AT (1) ATE135418T1 (ru)
AU (1) AU1695292A (ru)
BR (1) BR9206054A (ru)
DE (1) DE69209068T2 (ru)
GB (1) GB9111373D0 (ru)
RU (1) RU2114222C1 (ru)
WO (1) WO1992021801A1 (ru)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0707800D0 (en) * 2007-04-23 2007-05-30 Brintons Ltd Yarn tuft holder
CN102704051B (zh) * 2012-05-22 2015-01-21 山东济宁如意毛纺织股份有限公司 一种针梳机针圈维修更换装置
CN107488895A (zh) * 2015-07-14 2017-12-19 何烷钰 一种具有缓冲刺针的梳棉机刺辊
JP6276482B2 (ja) * 2015-12-11 2018-02-07 株式会社エヌディーシー 球技の打数記録ツール
CN105862183B (zh) * 2016-06-17 2018-03-02 江南大学 整体锡林梳理齿片的自动排齿机
CN107460565A (zh) * 2017-08-17 2017-12-12 金轮针布(江苏)有限公司 一种快换金属针布
CN111041615A (zh) * 2020-01-03 2020-04-21 威海鹏元纺织科技有限公司 人造毛皮机电动梳理头
CN116657293B (zh) * 2023-07-06 2023-10-10 江苏启宸新材料有限公司 一种水刺无纺布水刺梳理设备及工艺

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE15632C (de) * E. F. RENZ und G. GRÖZINGER JR. in Reutlingen Verfahren und Einrichtung zur Befestigung und Anspannung der Beschläge auf Kratzenwalzen
FR2260637B1 (ru) * 1974-02-07 1977-03-04 Schlumberger Cie N
GB8626965D0 (en) * 1986-11-12 1986-12-10 Stewart & Sons Hacklemakers Securing segments to base
GB8901416D0 (en) * 1989-01-23 1989-03-15 Lawrence Carl A Preparation of fibres for spinning

Also Published As

Publication number Publication date
AU1695292A (en) 1993-01-08
WO1992021801A1 (en) 1992-12-10
BR9206054A (pt) 1994-11-15
DE69209068T2 (de) 1996-10-24
EP0586413A1 (en) 1994-03-16
CN1069300A (zh) 1993-02-24
GB9111373D0 (en) 1991-07-17
JPH06507680A (ja) 1994-09-01
DE69209068D1 (de) 1996-04-18
ATE135418T1 (de) 1996-03-15
RU2114222C1 (ru) 1998-06-27
CN1032772C (zh) 1996-09-11
JP3222889B2 (ja) 2001-10-29

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