US3788057A - Twisting devices for filaments - Google Patents

Twisting devices for filaments Download PDF

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US3788057A
US3788057A US00315166A US3788057DA US3788057A US 3788057 A US3788057 A US 3788057A US 00315166 A US00315166 A US 00315166A US 3788057D A US3788057D A US 3788057DA US 3788057 A US3788057 A US 3788057A
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rotary
single drive
fixed support
drive roller
rotary ring
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US00315166A
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G Batsch
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SOCITEX
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SOCITEX
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    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02GCRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/02Producing 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
    • D02G1/04Devices for imparting false twist
    • D02G1/08Rollers or other friction causing elements

Definitions

  • ABSTRACT The device comprises at least one rotary ring against which the filament must be applied so as to be driven in rotation by the inner edge of the rotary ring to undergo twisting.
  • This rotary ring is driven by a single drive roller and the rotary ring comprises an outer edge of magnetic material. It is supported on said single drive roller by a fixed support roller and by a magnetic device inserted between the fixed support roller and the single drive roller.
  • the invention relates to twisting devices for filaments (that is to say for fine threads) especially for textile filaments. More particularly the invention relates to such devices comprising a rotary ring against which the filament must be applied so as to be driven in rotation by the inner edge of the rotary ring in order to undergo twisting.
  • the twisting device is characterised by the fact that the rotary ring comprises an outer edge of magnetic material, and by the fact that it is held supported on the single drive roller by a fixed support roller and by a magnetic device arranged between the fixed support roller and the single drive roller, this magnetic device being preferably arranged to draw said rotary'ring against the single drive roller and the fixed support roller.
  • the invention consists, apart from this main feature, of certain other features which are preferably used at the same time and which will be more explicitly considered below.
  • These rotary rings are staggered along a rectilinear path which the filament follows in the absence of the twisting device, that is to say a rectilinear path extending from the delivery device 2 to the fixing device 1.
  • These two groups A and B can undergo relative displacement, in a direction perpendicular to the rectilinear path, in order to pass from an inactive configuration for which the rotary rings 4a, 4b of the two groups A and B surround with play the rectilinear path of the filament 3 (FIGS. 1 and 3), to an active configuration, in which the rotary rings 4a, 4b of the two groups A and B come into contact with the filament 3 and oblige it to follow a sinuous path for which the filament 3 is applied against said rotary rings 4a, 4b so as to be rotated by their inner edge to undergo the desired twisting (FIGS. 2 and 4).
  • the two groups A and B are arranged so that when the two groups are in inactive configuration (FIGS. 1 and 3), the rings 4a, 4b of these two groups A and B are coaxial.
  • the single drive roller 5 comprises drive discs 8 cooperating respectively with the two rings 4a of the fixed group A and with the ring 4b of the movable group B.
  • This outer edge 53 and 54 can advantageously be constituted by a material such as that known under the trademark VULKOLLAN.”
  • the rotary ring 4a, 4b it comprises on the inside, one or several rings 55 with a rounded inner edge and constituted by a flexible or rigid material enabling the driving of the textile filament 3 (FIG. 5).
  • This or these rings 55 can advantageously be constituted by a material such as that known under the trademark VULKOLLAN.
  • Twisting device for textile filaments comprising at least one rotary ring against which the filament must be applied so as to be driven in rotation by the inner edge of the rotary ring to undergo twisting, said rotary ring being driven by a single drive roller, said rotary ring comprising an outer edge of magnetic material and being held supported on said single drive roller by a fixed support roller and by a magnetic device inserted between the fixed support roller and the single drive roller.
  • Twisting device for filaments comprising several rotary rings against which the filament must be applied so as to be rotated by the inner edge of said rotary rings to undergo twisting, these rotary rings being staggered along a rectilinear path and distributed into two overlapping groups so that in following said rectilinear path there is alternately encountered a ring of one group and a ring of the other group, these two groups being able to undergo relative displacement in a direction perpendicular or substantially perpendicular to said rectilinear path, this relative displacement being effected by pivoting around the axis of a single drive roller against which the rotary rings of the two groups are kept supported, each rotary ring comprising an outer edge of magnetic material, and being held supported on the single drive roller by a fixed support roller and by a magnetic device arranged between the fixed support roller and the single drive roller.
  • the rotary rings form a fixed group (A) and a movable group (B) and the single drive roller comprises drive discs cooperating respectively with the rotary rings which each comprise a groove formed in the outer edge and in which the corresponding drive disc becomes positioned, the one or more fixed support rollers and the one or more magnetic devices being carried by a fixed support when it relates to a rotary ring of the fixed group (A) and by a movable support when it relates to a rotary ring of the movable group (B).
  • each rotary ring comprises on the inside one or several rings with a rounded inside edge and constituted of a flexible or rigid material enabling the driving of the filament.

Abstract

The device comprises at least one rotary ring against which the filament must be applied so as to be driven in rotation by the inner edge of the rotary ring to undergo twisting. This rotary ring is driven by a single drive roller and the rotary ring comprises an outer edge of magnetic material. It is supported on said single drive roller by a fixed support roller and by a magnetic device inserted between the fixed support roller and the single drive roller.

Description

United States Patent Batsch TWISTING DEVICES FOR FILAMENTS [75] Inventor: Guy Batsch, Aubenas, France [73] Assignee: Societe Civile Textile dite Socitex,
' Lyon, France [22] Filed: Dec. 14, 1972 [2]] Appl. No.: 315,166
[30] Foreign Application Priority Data Jan. 5, 1972 France 72.00168 [52] US. Cl. 57/77.4, 57/77.45 [51] Int. Cl D02g 1/02 [58] Field of Search 57/34 R, 77.3-77.45
[5 6] References Cited UNITED STATES PATENTS 3,656,288 4/1972 Gilchrist 57/77.4 X 3,345,811 10/1967 Gilchrist 57/77.45
[ Jan. 29, 1974 3,142,953 8/1964 Gassner et al. 57/77.45
FOREIGN PATENTS OR APPLICATIONS 1,285,433 l/l962 France 57/77.4
854,780 11/1960 Great Britain 57/77.4
Primary Examiner-Donald E. Watkins Attorney, Agent, or Firm-Michael S. Striker [5 7] ABSTRACT The device comprises at least one rotary ring against which the filament must be applied so as to be driven in rotation by the inner edge of the rotary ring to undergo twisting. This rotary ring is driven by a single drive roller and the rotary ring comprises an outer edge of magnetic material. It is supported on said single drive roller by a fixed support roller and by a magnetic device inserted between the fixed support roller and the single drive roller.
8 Claims, 5 Drawing Figures PATENTEU-JAN 29 IQ'W- 3.788.057
sum 1 BF 2 TWISTING DEVICES FOR FILAMENTS BACKGROUND OF THE INVENTION The invention relates to twisting devices for filaments (that is to say for fine threads) especially for textile filaments. More particularly the invention relates to such devices comprising a rotary ring against which the filament must be applied so as to be driven in rotation by the inner edge of the rotary ring in order to undergo twisting.
It has already been proposed, in my copending patent application Ser. No. 183,503 filed Sept. 24, 1971, to drive such rotary rings by a single drive roller against which the rotary ring is kept supported. In the lastmentioned application it was indicated that the rotary rings could be held against the single drive when by means of two rollers of which one was mounted elastically.
SUMMARY OF THE INVENTION It is an object of the present invention to provide an improvement to replace this support mechanism using two rollers by a mechanism, which enables practically vibration free operation.
It is another. object of the invention to provide an improved device which enables very easy changing of the rotary ring and enables rapid adaptation of the type of rotary ring to the nature of the filament to be processed.
It is yet another object of the present invention to provide an improved device in which a single rotary ring may be used.
Other objects and advantages will become apparent from the description which follows.
The twisting device according to the invention is characterised by the fact that the rotary ring comprises an outer edge of magnetic material, and by the fact that it is held supported on the single drive roller by a fixed support roller and by a magnetic device arranged between the fixed support roller and the single drive roller, this magnetic device being preferably arranged to draw said rotary'ring against the single drive roller and the fixed support roller.
The invention consists, apart from this main feature, of certain other features which are preferably used at the same time and which will be more explicitly considered below.
DETAILED DESCRIPTION The invention will in any case, be well understood by means of the detailed description which follows as well as of the accompanying drawings, which description and drawings relate to a preferred embodiment of the invention and do not of course comprise any limiting character.
In the drawings:
FIGS. 1 and 2 are partial diagrammatic views of a twisting device according to the invention shown in an inactive configuration in FIG. 1, and in an active configuration in FIG. 2.
FIGS. 3 and 4 are two end views respectively of the twisting device shown in FIG. 1 and of the twisting device shown in FIG. 2. I
FIG. 5, lastly, is a cross-section on a larger scale of an important element of the twisting device shown in the preceding FIGS.
In FIGS. 1 to 4, there is shown a twisting device for a textile filament, this twisting device being inserted between a fixing device 1 and a delivery device 2 of a machine for the texturisation of this textile filament 3.
As indicated in the aforementioned patent application, this twisting device can comprise several rotary rings, denoted by the reference numeral 4 modified by an index a or b as explained below.
These rotary rings are driven in a rotary movement in the same direction and with the same speed, or with different speeds, and the filament 3 must be applied against the abovesaid rotary rings so as to be driven in rotation by their inner edge to undergo twisting.
These rotary rings are staggered along a rectilinear path which the filament follows in the absence of the twisting device, that is to say a rectilinear path extending from the delivery device 2 to the fixing device 1.
These rotary rings are distributed in two overlapping groups A and B, so that in following this rectilinear path there is alternately encountered a ring 4a of the group A and a ring 4b of the group B.
These two groups A and B can undergo relative displacement, in a direction perpendicular to the rectilinear path, in order to pass from an inactive configuration for which the rotary rings 4a, 4b of the two groups A and B surround with play the rectilinear path of the filament 3 (FIGS. 1 and 3), to an active configuration, in which the rotary rings 4a, 4b of the two groups A and B come into contact with the filament 3 and oblige it to follow a sinuous path for which the filament 3 is applied against said rotary rings 4a, 4b so as to be rotated by their inner edge to undergo the desired twisting (FIGS. 2 and 4).
The rings 4a 4b of the two groups A and B are held supported on a single drive roller 5 driving said rings, and the relative displacement of the two groups A and B is effected by pivoting around the axis of this single drive roller 5; this single drive roller 5 is itself rotated by a tangential belt 7.
The two groups A and B are arranged so that when the two groups are in inactive configuration (FIGS. 1 and 3), the rings 4a, 4b of these two groups A and B are coaxial.
From a mechanical point of view, it is simpler to provide a fixed group of rings, group A, whilst the other group, the group B, is movable.
As regards the number of rotary rings included-in such a device, it is advantageous to provide, for the fixed group A, at least two rotary rings 4a, and for the movable group B, at least one rotary ring 4b.
In FIGS. 1 to 4, there are shown a twisting device which comprises a fixed group A with two rotary rings 4a and a movable group B with a rotary ring 4b.
Each of the rotary rings 40, 4b comprises an outer edge 50 of magnetic material, and it is held supported on the single drive roller 5 by a fixed support roller 51 and by a magnetic device 52, such as a permanent magnet, arranged between the fixed support roller 51 and the single drive roller 5.
This magnetic device 52 is arranged to attract the' ring 4a, 4b concerned against the single drive roller 5 and the fixed support roller 51.
With respect to a given drive ring 4a, 4b, the angular separation (measured along its smallest value) existing between the fixed support roller 51 and the single drive roller 5 is less than the magnetic device 52 being arranged substantially in the middle of this angular separation; by way of example, there is shown in FIGS. 3 and 4 a twisting device for which the angular separation between the fixed support roller 51 and the single drive roller 5 is 120, the axis of the magnetic device 52 being arranged on the bisector of this angle of 120.
The fixed support rollers 51 and the magnetic devices 52 are then borne by a fixed support 11a, when it relates to holding the two rings 4a of the fixed group A, and by a movable support 11b, when it relates to holding the ring 4b of the movable group B.
The movable support 11b is pivotally mounted around the axis of the single drive roller 5 and bears a manipulating member 12.
From the constructional point of view and as shown in FIGS. 1 and 4, the single drive roller 5 comprises drive discs 8 cooperating respectively with the two rings 4a of the fixed group A and with the ring 4b of the movable group B.
To this end, each of the abovesaid rings 4a, 4b comprises a groove 9 formed in the outer edge 50 and in which the corresponding drive disc 8 becomes positioned.
Considering that the outer edge 50 of each ring 4a, 4b is generally constituted by a metallic, hence relatively rigid material, the drive discs 8 and the fixed support rollers 51 are provided with an outer edge, 53 and 54 respectively, constituted of a flexible material enabling the rotation of the rotary rings 4a, 4b.
This outer edge 53 and 54, can advantageously be constituted by a material such as that known under the trademark VULKOLLAN."
As for the rotary ring 4a, 4b, it comprises on the inside, one or several rings 55 with a rounded inner edge and constituted by a flexible or rigid material enabling the driving of the textile filament 3 (FIG. 5).
This or these rings 55 can advantageously be constituted by a material such as that known under the trademark VULKOLLAN. I
Finally, due to this solution of a magnetic device to hold each rotary ring supported against the corresponding drive disc of the single drive roller,
on one hand, the operation of the twisting device is effected without any mechanical vibration,
and on the other hand, it is possible to change the rotary rings much more easily, in particular to adapt them to the nature of the filament to be processed, these rotary rings being very accessible since they are no longer wedged between the machanical elements.
-As is self-evident and as emerges already from the foregoing, the invention is in no way limited to those types of application and embodiments which have been more especially envisaged; it encompasses, on the contrary, all modifications.
I claim:
1. Twisting device for textile filaments, comprising at least one rotary ring against which the filament must be applied so as to be driven in rotation by the inner edge of the rotary ring to undergo twisting, said rotary ring being driven by a single drive roller, said rotary ring comprising an outer edge of magnetic material and being held supported on said single drive roller by a fixed support roller and by a magnetic device inserted between the fixed support roller and the single drive roller.
2. Device according to claim 1, wherein the magnetic device is arranged to draw the rotary ring against the single drive roller and the fixed support roller.
3. Twisting device for filaments, comprising several rotary rings against which the filament must be applied so as to be rotated by the inner edge of said rotary rings to undergo twisting, these rotary rings being staggered along a rectilinear path and distributed into two overlapping groups so that in following said rectilinear path there is alternately encountered a ring of one group and a ring of the other group, these two groups being able to undergo relative displacement in a direction perpendicular or substantially perpendicular to said rectilinear path, this relative displacement being effected by pivoting around the axis of a single drive roller against which the rotary rings of the two groups are kept supported, each rotary ring comprising an outer edge of magnetic material, and being held supported on the single drive roller by a fixed support roller and by a magnetic device arranged between the fixed support roller and the single drive roller.
4. Device according to claim 3, wherein the magnetic device is arranged to draw the rotary ring concerned against the single drive roller and the fixed support roller.
5. Device according to claim 1, wherein the magnetic device is constituted by a permanent magnet.
6. Device according to claim 1, wherein the rotary rings form a fixed group (A) and a movable group (B) and the single drive roller comprises drive discs cooperating respectively with the rotary rings which each comprise a groove formed in the outer edge and in which the corresponding drive disc becomes positioned, the one or more fixed support rollers and the one or more magnetic devices being carried by a fixed support when it relates to a rotary ring of the fixed group (A) and by a movable support when it relates to a rotary ring of the movable group (B).
7. Device according to claim 1, wherein the one or more drive discs and the one or more fixed support rollers are provided with an outer edge constituted of flexible material enabling the driving of the rotary rings in rotation.
8. Device according to claim 1, wherein each rotary ring comprises on the inside one or several rings with a rounded inside edge and constituted of a flexible or rigid material enabling the driving of the filament.

Claims (8)

1. Twisting device for textile filaments, comprising at least one rotary ring against which the filament must be applied so as to be driven in rotation by the inner edge of the rotary ring to undergo twisting, said rotary ring being driven by a single drive roller, said rotary ring comprising an outer edge of magnetic material and being held supported on said single drive roller by a fixed support roller and by a magnetic device inserted between the fixed support roller and the single drive roller.
2. Device according to claim 1, wherein the magnetic device is arranged to draw the rotary ring against the single drive roller and the fixed support roller.
3. Twisting device for filaments, comprising several rotary rings against which the filament must be applied so as to be rotated by the inner edge of said rotary rings to undergo twisting, these rotary rings being staggered along a rectilinear path and distributed into two overlapping groups so that in following said rectilinear path there is alternately encountered a ring of one group and a ring of the other group, these two groups being able to undergo relative displacement in a direction perpendicular or substantially perpendicular to said rectilinear path, this relative displacement being effected by pivoting around the axis of a single drive roller against which the rotary rings of the two groups are kept supported, each rotary ring comprising an outer edge of magnetic material, and being held supported on the single drive roller by a fixed support roller and by a magnetic device arranged between the fixed support roller and the single drive roller.
4. Device according to claim 3, wherein the magnetic device is arranged to draw the rotary ring concerned against the single drive roller and the fixed support roller.
5. Device according to claim 1, wherein the magnetic device is constituted by a permanent magnet.
6. Device according to claim 1, wherein the rotary rings form a fixed group (A) and a movable group (B) and the single drive roller comprises drive discs cooperating respectively with the rotary rings which each comprise a groove formed in the outer edge and in which the corresponding drive disc becomes positioned, the one or more fixed support rollers and the one or more magnetic devices being carried by a fixed support when it relates to a rotary ring of the fixed group (A) and by a movable support when it relates to a rotary ring of the movable group (B).
7. Device according to claim 1, wherein the one or more drive discs and the one or more fixed support rollers are provided with an outer edge constituted of flexible material enabling the driving of the rotary rings in rotation.
8. Device according to claim 1, wherein each rotary ring comprises on the inside one or several rings with a rounded inside edge and constituted of a flexible or rigid material enabling the driving of the filament.
US00315166A 1972-01-05 1972-12-14 Twisting devices for filaments Expired - Lifetime US3788057A (en)

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FR7200168A FR2166707A6 (en) 1972-01-05 1972-01-05

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US (1) US3788057A (en)
CH (1) CH550869A (en)
CS (1) CS166048B2 (en)
DE (1) DE2257405A1 (en)
ES (1) ES408895A2 (en)
FR (1) FR2166707A6 (en)
GB (1) GB1348968A (en)
IT (1) IT1045088B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3921379A (en) * 1974-05-22 1975-11-25 Joseph F Smith Method and apparatus for false twisting yarn
US3994123A (en) * 1973-10-10 1976-11-30 Turbo Machine Company Friction twisting head
US10191128B2 (en) 2014-02-12 2019-01-29 Life Services, LLC Device and method for loops-over-loops MRI coils

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB854780A (en) * 1957-06-11 1960-11-23 Scragg & Sons Improvements in and relating to apparatus for twisting yarn
FR1285433A (en) * 1961-01-13 1962-02-23 Improvements to false torsion devices
US3142953A (en) * 1961-05-17 1964-08-04 Kugelfischer G Schaefer & Co Drive system for false twisters
US3345811A (en) * 1963-11-29 1967-10-10 Klinger Mfg Co Ltd Apparatus for false twisting yarn
US3656288A (en) * 1966-09-03 1972-04-18 Klinger Mfg Co Ltd False twist texturizing method and apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB854780A (en) * 1957-06-11 1960-11-23 Scragg & Sons Improvements in and relating to apparatus for twisting yarn
FR1285433A (en) * 1961-01-13 1962-02-23 Improvements to false torsion devices
US3142953A (en) * 1961-05-17 1964-08-04 Kugelfischer G Schaefer & Co Drive system for false twisters
US3345811A (en) * 1963-11-29 1967-10-10 Klinger Mfg Co Ltd Apparatus for false twisting yarn
US3656288A (en) * 1966-09-03 1972-04-18 Klinger Mfg Co Ltd False twist texturizing method and apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3994123A (en) * 1973-10-10 1976-11-30 Turbo Machine Company Friction twisting head
US3921379A (en) * 1974-05-22 1975-11-25 Joseph F Smith Method and apparatus for false twisting yarn
US10191128B2 (en) 2014-02-12 2019-01-29 Life Services, LLC Device and method for loops-over-loops MRI coils

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Publication number Publication date
FR2166707A6 (en) 1973-08-17
ES408895A2 (en) 1976-06-01
CH550869A (en) 1974-06-28
CS166048B2 (en) 1976-01-29
DE2257405A1 (en) 1973-07-12
IT1045088B (en) 1980-05-10
GB1348968A (en) 1974-03-27

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