EP0305304B1 - Dispositif d'étirage de mèches ou rubans de fibres sur une machine de filature - Google Patents

Dispositif d'étirage de mèches ou rubans de fibres sur une machine de filature Download PDF

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Publication number
EP0305304B1
EP0305304B1 EP88420288A EP88420288A EP0305304B1 EP 0305304 B1 EP0305304 B1 EP 0305304B1 EP 88420288 A EP88420288 A EP 88420288A EP 88420288 A EP88420288 A EP 88420288A EP 0305304 B1 EP0305304 B1 EP 0305304B1
Authority
EP
European Patent Office
Prior art keywords
support
machine
presser
splined shafts
shafts
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
EP88420288A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0305304A1 (fr
Inventor
Pierre Mirabel
Marcel Schoumacher
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.)
Devtex
Original Assignee
Devtex
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 Devtex filed Critical Devtex
Priority to AT88420288T priority Critical patent/ATE69838T1/de
Publication of EP0305304A1 publication Critical patent/EP0305304A1/fr
Application granted granted Critical
Publication of EP0305304B1 publication Critical patent/EP0305304B1/fr
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
    • D01H1/14—Details
    • D01H1/20—Driving or stopping arrangements
    • D01H1/22—Driving or stopping arrangements for rollers of drafting machines; Roller speed control
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/56—Supports for drafting elements
    • D01H5/565—Top roller arms

Definitions

  • the present invention relates to an improvement made to fiber drawing devices (in the form of wicks or ribbons) used on spinning machines when making fiber yarns of any type (spun one end, spun yarn with core, self-twisted yarn. It relates more particularly to an improvement made to stretching devices called "pendulum arms", such as for example those sold by the company SKF, well known to technicians and which are described in particular in the French patents published under the numbers 1343069 , 2081694 and 2081886.
  • Such pendulum arms which have been shown diagrammatically in FIGS. 1 and 2 appended, in side view, in the working position in FIG. 1 and in the disengaged position in FIG. 2 essentially consist of an assembly comprising, mounted on the support frame (1) of the machine, on the one hand a series of splined shafts (2), extending over the entire length of the machine and common to all the working positions, said shafts being driven in rotation, their number and spacing being a function of the materials to be treated and the drawing rates to be given and, on the other hand, pressing elements consisting of cylinders (3), mounted on a support arm (4) called "pendulum arm".
  • the pressure exerted by the cylinders (3) on the grooves (2) is obtained by means of coil springs working in compression.
  • the pressure is adjustable on each cylinder (3) individually.
  • Other means such as pneumatic means may possibly be used to ensure this pressure.
  • the arm (4) is mounted around a pivot (5) on a support (6) itself fixed on a bar (7) extending over the entire length of the loom.
  • the pressing of the pressing cylinders against the grooves (2) is obtained by means of a lever (8) on which the operator acts to either put the assembly in the working position ( Figure 1), or on the contrary move aside the pressing cylinders (3) when an operation must be carried out on the drawing system.
  • the clutch is released, after releasing the pressure, in the order of the food zone (A) towards the exit zone (B) and, when closing, the order is reversed.
  • the structure and operation of such stretching devices is clear from French patent 2081886 and will therefore not be described in detail.
  • the invention therefore relates to a device for drawing strands or ribbons of fibers on a spinning machine in order to transform this material into yarn, said device being of the pendulum arm type, essentially consisting of a assembly comprising, mounted on the support frame of the machine, on the one hand a series of splined shafts extending over the entire length of the machine and common to all the working positions, said shafts being driven in rotation and, d on the other hand, pressing elements consisting of cylinders mounted on a pivoting support arm and which comprises means making it possible to ensure the pressure of the pressing cylinders against the splined shafts and it is characterized in that the mounting on the frame of the machine the pendulum arm carrying the pressing elements is produced by means of a support comprising means making it possible to simultaneously separate the pressing cylinders in parallel the splined shaft line.
  • a support comprising means making it possible to simultaneously separate the pressing cylinders in parallel the splined shaft line.
  • the spinning machine comprises, for each working position, a stretching device making it possible to simultaneously treat two locks, that is to say in which two pendulum arms are mounted in parallel on a support bar
  • the mounting of said bar on the frame of the machine is carried out by means of a common support for these two stretching trains, said support serving as a guiding and holding element with two axes sliding, one end of which is connected to the support bar and the other end of which is subjected to the action of means making it possible to control said sliding, these means being constituted, for example, by a pneumatic cylinder whose rod acts on a cross connecting the ends of said axes.
  • the stretching device according to the invention can optionally be associated with means making it possible to automatically pinch the fibrous material when the pendulum arm is moving, as well as possibly means making it possible to separate the wick from the surface of the grooved cylinders, for example by displacement of mobile guides arranged between each cylinder and / or action of an air jet acting against the wick.
  • twin stretching system that is to say comprising two stretching trains mounted on a common support, but it is obvious that this does not is not limiting.
  • the stretching device comprises, in a similar manner to the stretching trains with conventional pendulum arms, mounted on the support frame (1) of the machine, a series of splined shafts (2) extending over the entire length of said machine and common to all working positions. These splined shafts (2) are rotated, their number and spacing being a function of the materials to be treated and the draw rate. Furthermore, some of these shafts can be associated with a sleeve system (9) as shown in FIG. 8.
  • the drawing of the wick (10) is ensured by means of pressing cylinders (3) mounted on a support arm (4) called "pendulum arm".
  • the pressure exerted by the cylinders (3) is generally obtained by means of springs (not shown) working in compression and mounted inside the arm (4).
  • the arm (4) is mounted around a pivot (5) on a support (6) itself fixed on a bar (7).
  • the bar (7) supports two similar drawing trains and which are therefore mounted in parallel on the loom.
  • the pressing of the pressing cylinder (3) against the splined shafts (2) can be obtained by means of a lever (8) on which the operator can act.
  • the mounting of the pendulum arms on the frame of the machine is carried out so as to be able to simultaneously separate all of the pressing cylinders (3) from the splined shafts (2) and this, in parallel to the latter without otherwise acting on the lever (8).
  • this simultaneous movement of all of the pressing cylinders (3) is obtained by mounting the support bar (7) on an assembly capable of being moved orthogonally to the drawing plane and which, in in this case, consists of two rods (11, 12) slidably mounted inside a support (13) itself secured to the frame (1).
  • the ends (14, 15) of the rods (11, 12) are fixed to the support bar (7), while the ends (16, 17) are, in turn, fixed to a crosspiece (18) which is connected to the rod (19) of a jack (20).
  • the jack (20) pushes the crosspiece (18) and, consequently, keeps the cylinders (3) in abutment against the grooves (2).
  • the stroke is preferably limited by providing a stop (21) on the support (13), a stop whose end (22) comes into contact with the support bar (7).
  • the stretching system according to the invention can be associated with a wick clamp (23) disposed opposite the support bar (7), such that when the latter is moved during the spacing of the pressing cylinders (3), it comes to bear against the surface of said wick clamp (23).
  • blowing system could be provided to achieve such a spacing.
  • Such a drawing device is particularly suitable for all spinning machines in which it is desired to carry out a high drawing from a food ribbon since it is possible, thanks to the simultaneous separation of all the pressure rollers, maintain the wick in its stretched state along the length of the drawing system. Furthermore, the very small footprint during opening which results from the design of such a device facilitates the installation of various accessories on the machine and in particular makes it possible to solve many problems posed by the automation of textile machines, especially when you want to associate a service robot with them.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Artificial Filaments (AREA)
EP88420288A 1987-08-28 1988-08-25 Dispositif d'étirage de mèches ou rubans de fibres sur une machine de filature Expired - Lifetime EP0305304B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88420288T ATE69838T1 (de) 1987-08-28 1988-08-25 Streckwerk fuer vorgarne oder faserbaender in einer spinnmaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8712176 1987-08-28
FR8712176A FR2619830B1 (fr) 1987-08-28 1987-08-28 Dispositif d'etirage de meches ou rubans de fibres sur une machine de filature

Publications (2)

Publication Number Publication Date
EP0305304A1 EP0305304A1 (fr) 1989-03-01
EP0305304B1 true EP0305304B1 (fr) 1991-11-27

Family

ID=9354561

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88420288A Expired - Lifetime EP0305304B1 (fr) 1987-08-28 1988-08-25 Dispositif d'étirage de mèches ou rubans de fibres sur une machine de filature

Country Status (9)

Country Link
US (1) US4878268A (pt)
EP (1) EP0305304B1 (pt)
JP (1) JPH01139823A (pt)
KR (1) KR890004006A (pt)
CN (1) CN1031729A (pt)
AT (1) ATE69838T1 (pt)
BR (1) BR8804187A (pt)
DE (1) DE3866475D1 (pt)
FR (1) FR2619830B1 (pt)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3904108A1 (de) * 1989-02-11 1990-08-16 Zinser Textilmaschinen Gmbh Belastungstraeger fuer streckwerke
JP2013253359A (ja) * 2012-06-08 2013-12-19 Murata Mach Ltd 紡績機
DE102018112422A1 (de) * 2018-05-24 2019-11-28 Saurer Spinning Solutions Gmbh & Co. Kg Streckwerk sowie Steckwerkeinheit für eine Spinnmaschine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2398756A (en) * 1943-05-25 1946-04-16 Saco Lowell Shops Textile drawing frame
US2686940A (en) * 1947-08-28 1954-08-24 Saco Lowell Shops Textile drawing mechanism
FR1343069A (fr) * 1961-11-22 1963-11-15 Skf Kugellagerf Abriken Gmbh Dispositif de verrouillage pour les bras-supports presseurs des cylindres supérieurs de trains d'étirage de métiers à filer
US3722036A (en) * 1970-03-04 1973-03-27 Kugellagerfab Gmbh Apparatus for mounting top rollers
FR2081886A1 (en) * 1970-03-12 1971-12-10 Skf Kugellagerfabriken Gmbh Upper roller support arm for spinning machin
JPS5557020A (en) * 1978-10-16 1980-04-26 Toray Ind Inc Manufacturing device of spun yarn
JPS62257426A (ja) * 1986-04-25 1987-11-10 Toray Ind Inc 紡機のドラフトロ−ラ繊維巻付きによる停止方法および紡機

Also Published As

Publication number Publication date
EP0305304A1 (fr) 1989-03-01
US4878268A (en) 1989-11-07
JPH01139823A (ja) 1989-06-01
FR2619830A1 (fr) 1989-03-03
BR8804187A (pt) 1989-03-14
KR890004006A (ko) 1989-04-19
CN1031729A (zh) 1989-03-15
ATE69838T1 (de) 1991-12-15
DE3866475D1 (de) 1992-01-09
FR2619830B1 (fr) 1989-11-24

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