US3623312A - Unwinding arrangement for yarn packages - Google Patents

Unwinding arrangement for yarn packages Download PDF

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Publication number
US3623312A
US3623312A US883458A US3623312DA US3623312A US 3623312 A US3623312 A US 3623312A US 883458 A US883458 A US 883458A US 3623312D A US3623312D A US 3623312DA US 3623312 A US3623312 A US 3623312A
Authority
US
United States
Prior art keywords
thread
spool
spindle
yarn package
arm
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
US883458A
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English (en)
Inventor
Hans Gutbrod
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.)
Hamel GmbH
Original Assignee
Hamel 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 Hamel GmbH filed Critical Hamel GmbH
Application granted granted Critical
Publication of US3623312A publication Critical patent/US3623312A/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
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/10—Spinning or twisting machines in which the product is wound-up continuously for imparting multiple twist, e.g. two-for-one twisting
    • D01H1/105—Arrangements using hollow spindles, i.e. the yarns are running through the spindle of the unwound bobbins
    • D01H1/106—Two-for-one twisting

Definitions

  • My present invention relates to a thread-drawing apparatus as used, for example, in double-thread twisting or spinning machines wherein a multiplicity of yarn packages or spools mounted on a bank of spindles are to be unwound for the building of bobbins with threads supplied by two or more of those yarn packages.
  • the outrigging arm extends substantially radially from the spindle at the top of the sleeve, thereby limiting the height of the yarn package to approximately that of the sleeve.
  • the yarn package moreover, is surrounded by a stationary can Which is nearly as high as the sleeve and defines therewith an annular channel for the revolving rising thread. Any increase in the height of the yarn package would require a raising of the arm as well as an upward extension of the can to maintain the separation between the balloon thread and the thread drawn off the spool, especially in case of a rupture.
  • the thread-deflecting loop or other element above the spindle must be similarly raised to flatten the balloon and to prevent undue friction between the thread and the can.
  • the object of my present invention is to provide an improved arrangement of this general type wherein the available space is better utilized for accommodating a yarn package or spool so that, given a certain distance between a spindle mount and a thread-drawing point, the length of thread continuously drawn from such spool will be a maximum.
  • a spool having a substantially cylindrical bottom portion and an adjoining top portion of progressively decreasing diameter, the thread being drawn Off this spool by an arm or similar guide element extending from the upper end of that top portion to substantially the junction of the two spool portions to form a guide path which includes an acute angle with the spindle axis.
  • the guide path may be a line generally parallel to a generatrix of the frustocone; if that spool portion is bulb-shaped or convex so as to approximate the configuration of an adjoining part of the balloon surface, the line should be parallel to one which is tangent to a generatrix of the bulb at an intermediate level.
  • a simple ring substantially at the level of the lower end of the linear guide path may be used to hold off the ballooning thread portion.
  • the balloon-confining sleeve if present, can terminate at the same level, thus at or near the junction of the cylindrical and tapering or bulb-shaped portions of the yarn package.
  • FIG. 1 is an elevational view, partly in section, of an apparatus for unwinding thread from a yarn package with tapering top portion, according to the invention.
  • FIG. 2 is a fragmentary view of a similar apparatus using a yarn package with a convex upper portion.
  • FIG. 1 I have shown part of a stationary base 40 receiving a sleeve 24 which is coaxially traversed by a tubular spindle 18 having a downward extension 19, the latter being rigid with a belt pulley 10 and being journaled in a manner not further illustrated for rotation by a driving belt engaging this pulley.
  • Spindle 18 is rigid with a throw-off disk 14 beneath a platform 16 which contains at least one armature attracted by a magnet 20 onbase 40, whereby the platform is held against rotary entrainment.
  • Disk 14 has a cylindrical downward extension formed with a radial bore 13 constituting an outlet for a thread 36 which passes at 36a, in a balloon just beyond the orbit of arm 31, through a loop 34 toward a traction roller or the like as indicated by an arrow A.
  • This thread is originally drawn at 36b off the yarn package and successively traverses the eyes 32 and 30, entering the spindle 18 from above and exiting from it at the orifice 13.
  • the rising thread portion 36a is held out of contact with the arm 31 by a stationary ring 28, supported at the level of the top of sleeve 24, which is also substantially the level of the junction of portions 22a and 2212, by one or more rods 26 extending upwardly from platform 16.
  • the thread unwound from the spool can reach this eye from any part of the spool surface.
  • FIG. 2 I have shown a modified spool or yarn package 22' with a cylindrical bottom portion 22a and a convex bulb-shaped top portion 22b.
  • the thread 36' drawn off the spool by an apparatus identical with that of FIG. 1, balloons along a curve similar to that of the convex spool surface.
  • thread guide 31 extends along a line which is parallel to a line L tangent to the spool at a point P on an intermediate level, i.e. between the top and the bottom of spool portion 22b.
  • the yarn package 22 or 22 can be made in several ways known per se.
  • the axial stroke of a traveler or other thread guide in a conventional bobbin-building machine cna vary in length, or the axial speed of that thread guide can be increased in the region of the upwardly converging spool portion.
  • Spools so wound are sometimes referred to as being of milk-bottle shape.
  • a thread-drawing apparatus including a tubular spindle traversing a spool of thread to be unwound, and a thread guide axially positioned above said spindle, the improvement wherein said spool has a substantially cylindrical bottom portion and an adjoining top portion of progressively decreasing diameter, said spindle being provided with a rotatably mounted arm extending obliguely from the upper end of said top portion to substantially the junction of said top and bottom portions at a close distance from the peripheral surface of said top portion, said arm being provided with an upper eye proximal to the spindle top and with a lower eye substantially at the level of said junction, thereby forming a straight guide path for thread coming ofi said spool and passing successively through said lower and upper eyes into said spindle, said guide path including an acute angle with the spindle axis, said spindle having a lower end formed with an outlet for said thread upon insertion thereof into said spindle from above whereby the thread can pass outside the spool from said outlet to said
  • top portion is frustoconical, said arm being generally. parallel to a generatrix of the frustocone.
  • top portion is bulb-shaped, said arm being parallel to a line tangent to a generatrix of the bulb at an intermediate level thereof.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Guides For Winding Or Rewinding, Or Guides For Filamentary Materials (AREA)
US883458A 1968-12-10 1969-12-09 Unwinding arrangement for yarn packages Expired - Lifetime US3623312A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681813801 DE1813801A1 (de) 1968-12-10 1968-12-10 Doppeldrahtzwirnanordnung

Publications (1)

Publication Number Publication Date
US3623312A true US3623312A (en) 1971-11-30

Family

ID=5715807

Family Applications (1)

Application Number Title Priority Date Filing Date
US883458A Expired - Lifetime US3623312A (en) 1968-12-10 1969-12-09 Unwinding arrangement for yarn packages

Country Status (6)

Country Link
US (1) US3623312A (de)
AT (1) AT316369B (de)
CH (1) CH502454A (de)
DE (1) DE1813801A1 (de)
FR (1) FR2025753A1 (de)
GB (1) GB1236496A (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3959557A (en) * 1974-11-04 1976-05-25 Minnesota Mining And Manufacturing Company Wear-resistant, nonabrading tic article and process for making
US4856268A (en) * 1987-07-24 1989-08-15 Savio, S.P.A. Unwinder arm rotating about a pivot suspended above a two-for-one twisting spindle for unwinding superposed bobbins
US5167112A (en) * 1990-03-29 1992-12-01 Palitex Project Company Gmbh Thread processing machine spindle assembly having mechanical adjustment mechanisms for devices within a rotating thread balloon
US8307622B2 (en) 2010-04-03 2012-11-13 Oerlikon Textile Gmbh & Co. Kg. Two-for-one twisting or cabling spindle

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015014382A1 (de) 2015-11-09 2017-05-11 Saurer Germany Gmbh & Co. Kg Arbeitsstelle einer Doppeldrahtzwirn-oder Kabliermaschine
DE102015014383A1 (de) 2015-11-09 2017-05-11 Saurer Germany Gmbh & Co. Kg Verfahren zum Betreiben einer Spindel einer Doppeldrahtzwirn- oder Kabliermaschine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3959557A (en) * 1974-11-04 1976-05-25 Minnesota Mining And Manufacturing Company Wear-resistant, nonabrading tic article and process for making
US4856268A (en) * 1987-07-24 1989-08-15 Savio, S.P.A. Unwinder arm rotating about a pivot suspended above a two-for-one twisting spindle for unwinding superposed bobbins
US5167112A (en) * 1990-03-29 1992-12-01 Palitex Project Company Gmbh Thread processing machine spindle assembly having mechanical adjustment mechanisms for devices within a rotating thread balloon
US8307622B2 (en) 2010-04-03 2012-11-13 Oerlikon Textile Gmbh & Co. Kg. Two-for-one twisting or cabling spindle

Also Published As

Publication number Publication date
AT316369B (de) 1974-07-10
GB1236496A (en) 1971-06-23
FR2025753A1 (de) 1970-09-11
DE1813801A1 (de) 1970-07-02
CH502454A (de) 1971-01-31

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