EP0369315A2 - Profil de dent pour garniture de cardage - Google Patents

Profil de dent pour garniture de cardage Download PDF

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Publication number
EP0369315A2
EP0369315A2 EP89120751A EP89120751A EP0369315A2 EP 0369315 A2 EP0369315 A2 EP 0369315A2 EP 89120751 A EP89120751 A EP 89120751A EP 89120751 A EP89120751 A EP 89120751A EP 0369315 A2 EP0369315 A2 EP 0369315A2
Authority
EP
European Patent Office
Prior art keywords
foot
tooth
profile according
profile
section
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.)
Withdrawn
Application number
EP89120751A
Other languages
German (de)
English (en)
Other versions
EP0369315A3 (fr
Inventor
Karl-Heinz Lehmann
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.)
Peter Wolters AG
Original Assignee
Peter Wolters 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 Peter Wolters AG filed Critical Peter Wolters AG
Publication of EP0369315A2 publication Critical patent/EP0369315A2/fr
Publication of EP0369315A3 publication Critical patent/EP0369315A3/fr
Withdrawn legal-status Critical Current

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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
    • D01G15/84—Card clothing; Manufacture thereof not otherwise provided for
    • D01G15/88—Card clothing; Manufacture thereof not otherwise provided for formed from metal sheets or strips
    • 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

Definitions

  • the invention relates to a profile with teeth as a clothing for cards with a foot area and adjoining teeth, wherein in the foot area near the tooth base in the foot side surface there is a longitudinal recess, in particular a longitudinal groove or notch, which extends over the entire length of the profile.
  • tooth profiles are known, the teeth of which are connected to the base of the tooth profile via a tooth base. This foot is fastened in helically arranged grooves.
  • the filling space In order to reduce the space between the teeth of two tooth profiles - called the filling space - and thus to improve the carding, since this brings the fibers closer to the cover set that works with the set, it is known to increase the base of the tooth profile, which increases the base area between tooth and foot is reduced so much that there is practically no longer a base. The base area has so far prevented the heat from draining too quickly from the teeth when the tooth profile or the set is hardening.
  • the object of the invention is for a tooth profile of the type mentioned at the beginning with a small base area, i.e. to ensure a small distance between the teeth and the foot, that a sufficiently high hardening and / or elasticity, in particular the tooth tips and in the transition between tooth and tooth base is achieved.
  • This object is achieved in that the cross-section of the foot region is reduced in width by the longitudinal recess.
  • the cross section between the clothing teeth and the foot is reduced and not only the thermal conductivity is significantly increased, but it can also be achieved with skillful coordination of the cross sections that the clothing becomes elastic in this area. This makes it possible to harden the tooth tips without the heat flowing too quickly into the foot, so that the tooth tips do not reach the required transition temperature. It is also prevented that the tips of the teeth are overheated if the heat supply is even higher, which is necessary because the heat flows away too quickly.
  • the longitudinal recess can have different cross-sectional shapes.
  • the cross section of the longitudinal recess is V, U, circular section, in particular semicircular or rectangular.
  • more than one longitudinal recess be made, in particular on both foot side surfaces.
  • the tooth profile or the set has a foot with an approximately rectangular cross section, on the outside of which teeth 2 are molded.
  • the transition area between teeth and foot is referred to as base 3 and is of low height H.
  • the teeth 2 are arranged off-center from the foot 1, i.e. the sides of the teeth are aligned with a side surface 4 of the foot 1.
  • a V-shaped longitudinal recess 5 is made in this side surface 4, the depth T of which corresponds to at least half the foot width B.
  • the profile is fully hardened from the tooth syringe to the bottom edge of the foot.
  • the cross section of the longitudinal recess 5 can also have other shapes and in particular be U-shaped, circular section, in particular semicircular. However, a rectangular cross section can also be used.
  • the cross section of the foot 1 near the base 3 can also be reduced by more than one longitudinal recess 5, it being possible for the longitudinal recesses to be arranged on opposite side surfaces 4 of the foot 1.
  • the longitudinal recesses can alternate on both sides. 4 and 6, the foot cross-sectional width can increase downwards. It is particularly advantageous if the uppermost longitudinal recess 5a lies below the tooth.
  • the side surfaces of adjacent feet interlock, the side surfaces have longitudinal projections which lie in the longitudinal recesses and are shaped accordingly.
  • the side surfaces can form grooves and tongues. This can also be the tooth Lower foot edge facing away from the groove top edge of the adjacent foot.
  • the longitudinal recesses have great heights, so that only a central or off-center web remains.
  • the foot thus has a U-shaped or double-T-shaped cross section.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP19890120751 1988-11-14 1989-11-09 Profil de dent pour garniture de cardage Withdrawn EP0369315A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19883838561 DE3838561A1 (de) 1988-11-14 1988-11-14 Zahnprofil fuer kardengarnitur
DE3838561 1988-11-14

Publications (2)

Publication Number Publication Date
EP0369315A2 true EP0369315A2 (fr) 1990-05-23
EP0369315A3 EP0369315A3 (fr) 1991-05-29

Family

ID=6367146

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890120751 Withdrawn EP0369315A3 (fr) 1988-11-14 1989-11-09 Profil de dent pour garniture de cardage

Country Status (3)

Country Link
EP (1) EP0369315A3 (fr)
JP (1) JPH02242922A (fr)
DE (1) DE3838561A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19740568A1 (de) * 1997-09-15 1999-03-18 Graf & Co Ag Sägezahn-Ganzstahlgarnitur

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19743745A1 (de) * 1997-10-02 1999-04-08 Schlafhorst & Co W Auflösewalze für eine Offenend-Spinnvorrichtung
JP5999128B2 (ja) * 2014-03-24 2016-09-28 株式会社豊田自動織機 コーマのトップコーム装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2832098A (en) * 1954-11-15 1958-04-29 Mee William Henry Garnett wire
GB854090A (en) * 1957-02-13 1960-11-16 Gustav Damgaard Improvements in saw tooth or garnett wire for the rollers or cylinders of textile machines
GB933834A (en) * 1961-03-21 1963-08-14 Tmm Research Ltd Improvements in textile carding machines
US3585706A (en) * 1966-06-21 1971-06-22 Nitto Shoji Kk Method of manufacturing a combing cylinder for a combing machine
GB2022640B (en) * 1978-05-25 1982-08-11 English Card Clothing Interlocking card-clothing wire

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19740568A1 (de) * 1997-09-15 1999-03-18 Graf & Co Ag Sägezahn-Ganzstahlgarnitur
DE19740568C2 (de) * 1997-09-15 2001-06-07 Graf & Co Ag Sägezahn-Ganzstahlgarnitur

Also Published As

Publication number Publication date
JPH02242922A (ja) 1990-09-27
EP0369315A3 (fr) 1991-05-29
DE3838561A1 (de) 1990-05-17

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