EP0286591B1 - Device for production of fancy effect yarns - Google Patents

Device for production of fancy effect yarns Download PDF

Info

Publication number
EP0286591B1
EP0286591B1 EP88810188A EP88810188A EP0286591B1 EP 0286591 B1 EP0286591 B1 EP 0286591B1 EP 88810188 A EP88810188 A EP 88810188A EP 88810188 A EP88810188 A EP 88810188A EP 0286591 B1 EP0286591 B1 EP 0286591B1
Authority
EP
European Patent Office
Prior art keywords
spindle
false twist
driven
hollow rotating
countershaft
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
EP88810188A
Other languages
German (de)
French (fr)
Other versions
EP0286591A2 (en
EP0286591A3 (en
Inventor
Arturo Ratti
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.)
Michele Ratti SpA
Original Assignee
Michele Ratti SpA
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 Michele Ratti SpA filed Critical Michele Ratti SpA
Priority to AT88810188T priority Critical patent/ATE96477T1/en
Publication of EP0286591A2 publication Critical patent/EP0286591A2/en
Publication of EP0286591A3 publication Critical patent/EP0286591A3/en
Application granted granted Critical
Publication of EP0286591B1 publication Critical patent/EP0286591B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
    • D02G1/0206—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting
    • D02G1/024—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting with provision for imparting irregular effects to the yarn

Definitions

  • a yarn called a "core” 1 flows from a feeder 2, goes into the axial hollow of a rotating spindle 3, reaches a false twist spindle 4 and is wound on a spool 5 which has the same peripheral speed as feeder 2.
  • Another effect yarn (or several yarns) 6 flows (flow) from a feeder 7 (or from several feeders), is guided through a device that promotes the union of the yarns called "slub" 8 and meets yarn 1, winding around it by the (false) twist effect generated by spindle 4 on yarn 1 itself.
  • Fig. 2 indicates a variant, still of known type, in which rotating spindle 3 and that of false twist 4 are solid on the same axis of spindle 3, i.e., 4 rotates with 3. All the spindles like 3 mounted on the machine are driven by a single belt 11 which receives the movement from a single motor (not shown).
  • Fig. 3 represents a further known variant in which the unit of spindles 3 and 4 is mechanically disconnected, i.e., all spindles 3 are driven by a single belt 11 and all spindles 4 are driven by another single belt 12: the speed of 11 and 12 therefore can be different, which makes it possible to achieve a greater number of effects.
  • Fig. 4 indicates another known variant in which each individual unit made up of 3 and 4 can be driven by an auxiliary motor 18, by which the speeds and 3 and 4 can be different as in the case of fig. 3.
  • pulley 14 is solid with the hollow shaft of 3, 15 and 16 rotate on countershaft 13 and 17 is solid with false twist spindle 4.
  • the whole unit is driven by a single belt 15 which drives hollow rotating spindle 3, then the rotary movement of false twist spindle 4 originates from that of hollow rotating spindle 3.
  • countershaft 13 and interchangeable pulleys 14, 15, 16, 17 can be replaced by equivalent known means without going outside the scope of protection of the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Game Rules And Presentations Of Slot Machines (AREA)

Abstract

The device for production of fancy effect yarns comprises a hollow rotating spindle (3) driven by a belt (11) and a false twist spindle (4) driven at an angular speed that is adjustable relative to that of hollow rotating spindle (3). The rotary movement of the false twist spindle (4) originates from that of hollow rotating spindle (3) by means for varying the angular speed of false twist spindle (4) relative to that of said hollow rotating spindle (3). Said means preferably comprise a countershaft (13) and interchangeable pulleys (14, 15, 16, 17) of different diameter inserted: (14) on hollow rotating spindle (3), (15 and 16) on countershaft (13) and (17) on false twist spindle (4).

Description

  • For the production of fancy effect yarns, i.e., knots, curls, flames, spaced from one another at irregular intervals, devices exist today with which the effect is obtained by a rotating drilled spindle solid with a yarn reel that binds the effect and a false twist that generates the effect. The device in question represents a notable improvement thereof.
    • -- In fig. 1 is shown a device of known type working according to the principle set forth above.
    • -- In figures 2, 3, 4 some variants are shown still of devices of known type.
    • -- In fig. 5 a preferred nonlimiting embodiment of the device according to the invention is given.
  • With reference to fig. 1:
       a yarn called a "core" 1 flows from a feeder 2, goes into the axial hollow of a rotating spindle 3, reaches a false twist spindle 4 and is wound on a spool 5 which has the same peripheral speed as feeder 2.
  • Another effect yarn (or several yarns) 6 flows (flow) from a feeder 7 (or from several feeders), is guided through a device that promotes the union of the yarns called "slub" 8 and meets yarn 1, winding around it by the (false) twist effect generated by spindle 4 on yarn 1 itself.
  • By varying the relative speed between yarn 1 and yarn 6 a certain effect 9 is generated on the yarn. This effect would disappear after spindle 4 if binding yarn 10 did not cover yarns 1 and 6 permanently binding effect 9 obtained thanks to false twist.
  • Fig. 2 indicates a variant, still of known type, in which rotating spindle 3 and that of false twist 4 are solid on the same axis of spindle 3, i.e., 4 rotates with 3. All the spindles like 3 mounted on the machine are driven by a single belt 11 which receives the movement from a single motor (not shown).
  • Obviously the angular speeds of 3 and 4 cannot be different and therefore the number of obtainable effects is limited.
  • Fig. 3 represents a further known variant in which the unit of spindles 3 and 4 is mechanically disconnected, i.e., all spindles 3 are driven by a single belt 11 and all spindles 4 are driven by another single belt 12: the speed of 11 and 12 therefore can be different, which makes it possible to achieve a greater number of effects.
  • Fig. 4 indicates another known variant in which each individual unit made up of 3 and 4 can be driven by an auxiliary motor 18, by which the speeds and 3 and 4 can be different as in the case of fig. 3.
  • The object of this invention is shown in fig. 5 in which false twist spindle 4 is coaxial with the axis of hollow spindle 3 but spindle 4 rotates independently of spindle 3, with different angular speed thanks to countershaft 13 and to interchangeable pulleys 14, 15, 16, 17 of different diameters.
  • As appears from the drawing, pulley 14 is solid with the hollow shaft of 3, 15 and 16 rotate on countershaft 13 and 17 is solid with false twist spindle 4.
  • The whole unit is driven by a single belt 15 which drives hollow rotating spindle 3, then the rotary movement of false twist spindle 4 originates from that of hollow rotating spindle 3.
  • And this is the basic principle of this invention which makes it possible to achieve what is obtained with the known devices in figures 1, 3, and 4 with much simpler and efficient means, avoiding the complications of two belts (fig. 3) or an auxiliary motor 12 (fig. 4) and further obtaining the following notable advantage: in case of figures 3 and 4, when the speed of hollow rotating spindle 3 is varied it is necessary to calculate each time what speed should be given to belt 12 (fig. 3) or motor 18 (fig. 4) to obtain a determined effect, which causes a notable loss of time.
  • But with the device according to the invention (fig. 5) by varying the speed of spindle 3 the speed of spindle 4 will also be automatically and correspondingly varied, since the latter is derived directly from the first, with notable saving of time and without any difficulty.
  • It is provided that countershaft 13 and interchangeable pulleys 14, 15, 16, 17 can be replaced by equivalent known means without going outside the scope of protection of the invention.

Claims (1)

  1. Device for the production of fancy effect yarns, comprising a hollow spindle (3) driven by a belt (11) and a false twist spindle (4), coaxial with said hollow spindle (3), which is driven with an angular speed adjustable relative to that of said hollow spindle (3), whereby said hollow spindle (3) and said false twist spindle (4) are fitted with interchangeable pulleys (14) and (17), respectively, characterized in that a countershaft (13) fitted with interchangeable pulleys (15) and (16), and drive belts between pulleys (14, 15) and (16, 17), respectively, are provided, whereby said countershaft (13) is being driven by said hollow spindle (3) and in turn drives said false twist spindle (4).
EP88810188A 1987-04-10 1988-03-23 Device for production of fancy effect yarns Expired - Lifetime EP0286591B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88810188T ATE96477T1 (en) 1987-04-10 1988-03-23 DEVICE FOR MANUFACTURING EFFECT YARN.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT47837/87A IT1205802B (en) 1987-04-10 1987-04-10 DEVICE FOR THE PRODUCTION OF YARNS WITH FANTASY EFFECTS
IT4783787 1987-04-10

Publications (3)

Publication Number Publication Date
EP0286591A2 EP0286591A2 (en) 1988-10-12
EP0286591A3 EP0286591A3 (en) 1991-02-27
EP0286591B1 true EP0286591B1 (en) 1993-10-27

Family

ID=11262844

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88810188A Expired - Lifetime EP0286591B1 (en) 1987-04-10 1988-03-23 Device for production of fancy effect yarns

Country Status (5)

Country Link
EP (1) EP0286591B1 (en)
AT (1) ATE96477T1 (en)
DE (1) DE3885142T2 (en)
ES (1) ES2045179T3 (en)
IT (1) IT1205802B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109825916B (en) * 2019-03-13 2024-04-19 江阴美纶纱业有限公司 Double-channel hollow spindle fancy yarn forming device and method
CN112813553B (en) * 2020-12-31 2021-11-26 浙江汇纤纺织科技有限公司 Preparation method of Sorona filament and Richcel staple fiber coated variable-twist fancy yarn

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2060010A (en) * 1979-10-02 1981-04-29 Mackie & Sons Ltd J Paper spinning

Also Published As

Publication number Publication date
IT1205802B (en) 1989-03-31
ES2045179T3 (en) 1994-01-16
IT8747837A0 (en) 1987-04-10
DE3885142T2 (en) 1994-02-24
EP0286591A2 (en) 1988-10-12
ATE96477T1 (en) 1993-11-15
EP0286591A3 (en) 1991-02-27
DE3885142D1 (en) 1993-12-02

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