US3916609A - Draw-texturing apparatus - Google Patents

Draw-texturing apparatus Download PDF

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Publication number
US3916609A
US3916609A US404643A US40464373A US3916609A US 3916609 A US3916609 A US 3916609A US 404643 A US404643 A US 404643A US 40464373 A US40464373 A US 40464373A US 3916609 A US3916609 A US 3916609A
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Prior art keywords
yarn
draw
false
texturing apparatus
twisting
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US404643A
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English (en)
Inventor
Seibi Yamada
Kinyu Ishida
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Teijin Ltd
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Teijin Ltd
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    • 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
    • D02G1/0266—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 false-twisting machines
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/225—Mechanical characteristics of stretching apparatus

Definitions

  • a first operational floor is formed between said package supply means and the upper portion of said body proper.
  • Take-up means are placed on the apparatus base floor in opposingrelation in the lower portion of said body proper and a second operational floor having yarn passages underneath is formed between the lower portion of said body proper and said take-up means.
  • the present invention relates to a draw-texturing apparatus of a novel arrangement and construction, adapted for use in producing false-twisted bulky yarns directly from undrawn yarns of synthetic fibers.
  • undrawn yarns as used herein is defined as including partially drawn yarns.
  • the apparatus to practice such a method i.e., the draw-texturing apparatus, in general comprises three parts: (i) package supply means, mounting yarn packages thereon; (ii) draw-false-twisting section, composed of supply rollers adapted to supply undrawn yarns to a draw-false-twisting portion, a first heater, false-twisting means, a first delivery roller adapted to draw or stretch yarns, said first delivery roller having a peripheral speed greater than that of said supply roller, a second heater, a second delivery roller, etc., and; (iii) take-up means adapted to take up yarns around the surface of bobbin.
  • a draw-texturing apparatus comprising: a body proper extending from the apparatus base floor through and beyond an intermediate floor; package supply means located on said intermediate floor in opposing relation to the upper portion of said body proper; a first operational floor between said package supply means and the upper portion of said body proper; take-up means placed on said base floor in opposing relation to the lower portion of said body proper; a second threading-up operation floor positioned between said take-up means and the lower portion of said body proper, and; yarn passages leading control means and an automatic adjusting means for the operational speed during the threading-up opera tion, which result in increased practical advantages for the apparatus of the present invention.
  • a heater of a special construction adapted for ready use in the threading-up operation as well as for enhancing the heating effect, yarn breakage detecting means and an auxiliary reverse twist member to increase the twisting effect.
  • FIG. 1 is a side elevational view of a draw-texturing apparatus of the present invention
  • FIG. 2 is a plan view of the draw-texturing apparatus of the invention showing the portion above the intermediate floor of FIG. 1;
  • FIG. 3 is a planview of the draw-texturing apparatus of the invention, showing the lower portion thereof;
  • FIGS. 4A, 4B, 4C and 40 are side elevational views of an embodiment of the threading-up device for use in the draw-texturingrapparatus of FIG. 1 or FIG. 7;
  • FIG. 4E is a side elevational view of another embodiment of the threading-up device for use in the drawtexturing apparatus of FIG. 1 or FIG. 7;
  • FIGS. 5A 5B and 5C are a perspective view, a partially broken side-elevational view and a plan view, respectively, of the yarn guiding member of the threading-up device as shown in FIGS. 4A to 4D;
  • FIG. 6 is a plan view of a yarn guiding rod of the threading-up device shown in FIGS. 4A through 4D;
  • FIG. 7 is a side elevational view of another draw-texturing apparatus of the invention.
  • FIG. 8 is a plan view of the draw-texturing apparatus of FIG. 7 showing the portion thereof above the intermediate floor;
  • FIG. 9 is a sideelevational view, partially broken, of the detailed construction of the false-twisting portion of the draw-texturing apparatus of FIG. 1 or FIG. 7, a sound proof cover and an air-discharging mechanism thereof;
  • FIG. 10 is a cross-sectional plan view showing the construction of the second heater used in the draw-texturing apparatus shown in FIG. -1 or FIG. 7;
  • FIG. 11A and FIG. 11B are side-elevational views of an auxiliary reverse twist member located immediately downstream of a false-twisting spindle of the draw-texturing apparatus of FIG. 1 or FIG. 7, and an enlarged side-elevational view of a tubular guide of said member;
  • FIG. 12A and FIG. 12B are a front view and a crosssectional view, respectively, (taken along the line XII- XII of FIG. 12A) of the yarn-breakage detecting means used in the draw-texturing apparatus of FIG. 1 or FIG. 7;
  • FIG. 13A is a diagram of a drive means adapted for the draw-texturing apparatus of FIG. 1 or FIG. 7, and;
  • FIG. 13B is a block diagram of the drive means shown inFIG. 13A. 1
  • FIGS. 1, 2 and 3 shown by 1 is a frame of the body proper extending upwardly from a basic frame 2 located on a base floor Fo, with the upper portion of said frame protruding above the intermediate floor Fl located above said base'floor F0.
  • the body proper of the apparatus of the invention consists of supply rollers 3 supported on the transverse frames mounted horizontally on said frame 1, a first heater 4 of contact type, two false-twisting, means 5 such as false-twisting spindles, two first delivery rollers 6, a second heater 7 of noncontact type,.two second delivery rollers 8, being disposed on said frame 1.
  • a first heater 4 of contact type such as false-twisting spindles
  • two first delivery rollers 6, a second heater 7 of noncontact type,.two second delivery rollers 8 being disposed on said frame 1.
  • the false-twisting means may include, for example, a false-twisting spindle unit, friction twist type false-twisting unit and fluid jet type falsetwisting unit.
  • a package supply means having pegs 9b mounted on the frame body 9a located on the intermediate floor Fl, each peg 9b being adapted to hold a yarn package thereon.
  • the pegs 9b are rotatably mounted on a vertical frame 90, such that, upon replacing a yarn package, the peg 9b is rotated to the rear of the frame, thus permitting the yarn replacement from behind the frame.
  • the space S1 defined between the upper portion of the body proper and the package supply means 9 is utilized for the first threading-up operation, and the intermediate floor Fl contained therein is used as a first threading-up operation floor Fa. Accordingly, the undrawn yarn Y which is being withdrawn from the respective yarn packages housed in the package supply means 9, is led into a yarn guides 9d and 9e provided in the front and upwardly of the package supply means 9, then through the upper portion of the operational space SI into a supply guide 10 of the body proper and then to the supply roller 3. There is provided a yarn cutter 59 betweenthe supply guide 10 and supply roller 3.
  • Take-up means 11 are located on the apparatus base floor F0 in opposing relation to each other in the lower portion of the body proper.
  • the take-up means comprises, on a frame 11d, bobbin holders lla adapted to hold the take-up bobbins thereon, friction rollers 11b of a line shaft system, which rollers 11b are adapted to friction drive take-up packages, and traverse guides 11c adapted to transversely pay out yarns thereover.
  • Take-up units are arranged in two or three stages.
  • the threading-upioperation of yarns around each takeup unit is carried out from the front ofthe take-up unit in the second threading-up operational space S2 defined between the lower portion of the body proper and the take-up means 11, while the removal of the complete package, -i.e., so called doffing, is accomplished from the rear of the take-up means.
  • a second threading-up operation floor F2 Located in the second threading-up operational space S2 is a second threading-up operation floor F2.
  • the yarn passage or route leading from the second delivery roller to the take-up means 11 is located beneath the said operation floor F2. Accordingly, yarn guides 12a and 12b are placed adjacent to and under the operation floor F2, whereby the yarn is led from the second delivery roller, past the guides 12a and 12b, and then upwardly from said guide 12b into the inlet guide lle of each take-up unit.
  • 120 is a yarn guide. The yarn is then transversely paid out by the. traverse guide to thereby form a package.
  • Slits are formed onto the operation floor F2 to provide the yarn passage permits the smooth threadingup operation above said operation floor.
  • 13 represents an oiling means.
  • the yarn passage leading from the package supply means 9 to the supply roller 3 is provided above the first threading-up operation floor Fa, thereby permitting smooth and quick operation in the first threading-up operation space S1.
  • the draw-false-twisting units are provided for the draw-texturing apparatus on the opposite sides of the body proper thereof along the length of said body proper.
  • pegs on the package supply means and take-up units are provided, corresponding to said draw-false-twisting units, along the length of said package supply means and the frame of the take-up means.
  • an operator on the first operation floor Fa draws a yarn from the yarn package on the package supply means 9 and then introduces the same, inturn, through the guide 9d, supply guide 10, supply roller 3 and first heater ,4 to the underside of the operation floor Fa.
  • the yarn thus withdrawn is introduced by another operator on the operation floor F2 in the second threading-up operation space S2 into the false twisting means 5, first delivery roller 6, second heater 7, second delivery roller 8, past the guides 12a and 12b and then around the bobbins of respective take-up units, thus completing the threading-up operation.
  • the yarn drawn from the .yarn package on the package supply means 9 may be introduced through the guide 9d and, by an arrangement similar to the apparatus described above, through the underside of the operation floor Fa to the supply guide 10.
  • the neck point will be positioned on the twistsetting heater.
  • the twist-setting heater is heated to an extremely high temperature (in the case of polyester fibers, the temperature will be raised to about 200C), such that, if the undrawn yarn contacts the heater, the yarn will be thermally deteriorated, leading to immediate breakage.
  • the yarn is stretched or drawn at such a high temperature imparted by the heater, after the drawing operation has been commenced, there will resultashort contacting duration of the undrawn yarn withthe heater even if the yarn happens to contact the hot heater, while the yarn ahead of without any trouble, because the yarn has been already drawn.
  • FIGS. 4A, 4B, 4C and 4D are identical to those shown in FIGS. 1 through 3 .
  • 3a is a supply roller of an apron type
  • 4a a first heat-treating heater of a grooved type
  • 5 is a false-twisting means which is shown in this case as a false-twisting spindle
  • 6a is a first delivery roller of an apron type.
  • the first delivery roller 6a rotates at a peripheral speed greater than that of the supply roller 3a for drawing the yarn.
  • the peripheral speed ratio of the first delivery roller to the second delivery roller is preferably from 1.3 to 3.0.
  • a rocking element is pivoted at a pin 16 on a block 14 mounted fixedly on the grooved type heater 4a.
  • a cam 17 is fixedly mounted on the rocking element 15, being formed, at the front edge thereof, with a yarn engaging notch 17a and, at the rear edge thereof, with an arcuate face 17b integral with said front edge, as shown in FIGS. 5A, 5B and 5C.
  • Affixed to the lower portion 21b of the rod 21 is an arm which rotatably supports a cam follower 25, while the cam follower 25 is loosely fitted in an L-shaped grooved cam 27a provided in the arm 27 adapted to rotate about the pin 26.
  • a guide bar 28 is fixed to an arm 27.
  • the guide bar 28 is formed .with an L-shaped portion at the tip thereof, as shown in FIG. 6, and the bent tip portion has therein a recessed portion 28a for engagement with the yarn, said recessed portion 28a being adapted to rock about the pin 26 like the aforesaid cam 17.
  • the rod 21 is supported at its lower end portion by an operating lever 30 which is rotatably supported by the pin 29 projecting from the body proper provided with the grooved type heater 4a, whereby the rod 21 is moved upwardly or downwardly by means of said operating lever 30, and the cam follower and move vertically as the rod 21 moves vertically.
  • the operational lever 30 when the operational lever 30 is moved upwardly, the upper cam follower 20 will be positioned on the side of the pin 16 of the inverted L-shaped 6 grooved cam 19a, while the portion of the L-shaped grooved cam 27a of an arm 27 ahead of the bending point and averted from the pin 16 will be positioned in parallel with the rod 21.
  • the cam follower 25 is positioned in the furthermost position from the pin 26 in the grooved cam 27a.
  • the operational lever 30 is positioned in the uppermost position, with the cam 17 and a guide lever 28 being spaced apart from the first heater 4a, and then undrawn yarn Y is past through the outside of the guide bar 28, rather than being held with the supply roller 3a, then through the guide 31 and around the false-twisting spindle 5 free from its driving force, after which the yarn end is sucked into the aspirator, and then the yarn is held by the supply roller 3a.
  • the yarn will be urged against the falsetwisting spindle for commencing the draw-false-twisting operation, simultaneously with the threading-up operation of the yarn around the first delivery roller 6a.
  • the first delivery roller 6a rotates at a peripheral speed greater than that of the supply roller 3a.
  • the yarn Y between the rollers 3a and 6a is heated by the grooved type heater 4a, there are formed neck points on the yarn Y at the portion thus heated and in this manner the yarn is drawn or stretched.
  • the grooved cam 27a in which the lower cam follower 25 is loosely fitted, is aligned in parallel to the rod 21, while the guide bar 28 maintains the initial condition.
  • the cam 17 is rotated to a further extent, with the grooved cam 19a being aligned in parallel with the rod 21, although the grooved cam 27a is maintained in a parallel relation with the rod 21 and the guide bar 28 is maintained stationary. During this time, the cam 17 slowly urges the yarn Y against the upper portion of the heating surface 22a of the grooved type 7 first heater 4a.
  • the yarn Y has been already drawn as has been described, whereby the yarn will not be subjected to breakage, even if it contacts the first heater 4a, and thus it is further heated so as to set the neck points.
  • the guide bar 28 may be positioned ahead of the cam 17 in the moving phase, by suitably selecting the configurations of the cam followers and plus the grooved cams 19a and 27a.
  • a cam having a yarn engaging notch in the front edge thereof and an arcuate face integral with the front edge of said cam, such that when the yarn is positioned in the engaging notch, then there will be no slack on the yarn, as the yarn is being transferred from the supply roller to the aspirator.
  • the yarn slides on the arcuate face of the cam and is maintained in the yarn engaging notch automatically, thus leading to the easy but positive engagement of the yarn.
  • said cam is provided between the supply roller and the heat treating heater, and the yarn guide is provided between the heat treating heater and the false-twisting means in such a manher that the cam and yarn guide shift in a direction perpendicular to the yarn passage by adjusting the timing thereof.
  • the threading-up operation can successfully be carried out in similar manner to that of the threading-up device of the above-mentioned type.
  • the operational lever 30a when the operational lever 30a is lowered, a rocking element 15a pivoted at a pin 16a on a block 14a and a lever 19b mounted fixedly on said rocking element 15a formed with an I-shapecl grooved cam 190 are rotated about the pin 16 in a counterclockwise direction. As a result, the yarn comes into contact with the heating surface of the first heater.
  • a simpler threading-up device can successfully be utilized with the draw-texturing apparatus of the present inven- 8 tion.
  • a rod elongated from the upper end to the lower end of the first heater is mounted rotatably about the axis of the rod.
  • guide bars are fixedly provided at a right angle to its axis at the upper and lower end portions of the heater.
  • the yarn may be caused to contact the heating surface of the first heater by the rotation of the guide bars from the outer side to the inner side of the groove of the heater.
  • a roller having a rough surface is utilized for the supply roller for introducing the undrawn yarn to the draw-false-twisting section.
  • the yarn outlet of the aventurine surface supply roller is directed downward, whereby the winding of the yarn around the supply roller can be prevented at the occasion of yarn breakage.
  • an acceptor for waste yarn may be provided in opposing relation to the lower portion of the heater 4a.
  • the draw-texturing apparatus of the present invention described thus far can successfully prevent yarn breakage due to the threading-up operation of the undrawn yarn Y, by adopting the threading-up device of a special type, as has been described. However, it still fails to prevent yarn breakage completely.
  • studies have been made by the inventors which led to the discovery that the best result may be obtained by reducing the operational speed of the draw-texturing apparatus to a speed lesser than the normal operation speed thereof at the time of the threading-up. operation.
  • a novel drive control system adapted for use in the draw-texturing apparatus, which has excellent practical advantage.
  • the draw-texturing apparatus of the invention includes a main electric motor adapted to drive the yarn advancing system and an electric motor adapted to drive the false-twisting system via a generator connected to said main electric motor.
  • a main electric motor adapted for driving the yarn advancing system
  • an auxiliary electric motor which allows the draw-texturing apparatus, upon starting the operation, to be operated at low speed. After the completion of the threading-up operation, the speed of the main electric motor may be increased gradually, by the cushion starting circuit for the main electric motor drive circuit, when the auxiliary electric motor is switched to the main motor.
  • the speed V (m/min) referred to as a low speed herein be in the range of 5 V 80 De/5 (wherein De denotes the denier of the yarn, after the yarn has passed through the false-twisting means).
  • V 80 De/5 wherein De denotes the denier of the yarn, after the yarn has passed through the false-twisting means.
  • the draw-texturing apparatus is automatically switched to the main electric motor being adapted for use in the normal operation (high speed operation), by using a switching means or timer, and the gradual increase in speed of the apparatus is permitted by a cushion starting circuit provided in the driving circuit of the main motor.
  • the electric motor for use in driving the false-twisting means can follow the normal speed operation, reducing the yarn breakage phenomenon during the speed increasing process.
  • 34 is an auxiliary electric motor; 35 is a reduction gear means; 36 is a one-way clutch, by 34 an auxiliary electric motor; and by 37 is a pulley means to transmit the power from the auxiliary electric motor 34 to gear mechanisms 38 and 39.
  • Designated by 40 are contacts of a switch adapted to start or stop the auxiliary electric motor 34.
  • a reactor 41 is provided in the drive circuit for the main electric motor 33, thus presenting one example of the cushion starting circuit.
  • Represented by 44 are contacts of the switch means which is adapted to short-circuit the reactor 41 and open the cushion starting circuit, after the completion of the cushion starting (after completion of increasing the speed).
  • Shown by 46 is a generator adapted to drive the motor 47 which is to drive the false-twisting system, said generator being connected to the gear 39.
  • 46 is an alternating current generator and 47 is a synchronous motor.
  • operation of the operating button causes the switching means (not shown) to be actuated to thereby close the contacts 40. (at this time, the contacts 40 are open).
  • the auxiliary electric motor 34 for low speed starts its rotation to thereby advance the yarn (not shown) via reduction gear means 35, one way clutch 36 and gear 38, while driving generator 46 via a gear 39, so that the motor 47 may be driven at low-speed due to the electro-motive force produced.
  • the threading-up operation is thus carried out.
  • the switching means (not shown) will be actuated to thereby close the contacts 43 (at this time, the contacts 40 are open), while the main electric motor starts its rotation, thereby increasing the speed of an advancing yarn and a false-twisting, thus reaching the normal speed.
  • the reactor 41 is incorporated in the drive circuit of the main electric motor 33 according to the present invention, there is no sharp increase in the speed of the main electric motor 33, thereby the cushion starting is effected.
  • the contacts 44 After reaching the normal speed, the contacts 44 will be closed by means of a timer (not shown) and the reactor 41 will be short-circuited. This permits normal operation without yarn breakage in the draw-texturing apparatus.
  • the generator 46 keeps producing a output, even after the contacts have been brought into an open position at the time the motors are stationary. As a result the motor 47 will-be reduced in speed in a regenerative braking fashion in cooperation with the drawn yarn, thereby causing no yarn breakage and making it possible to concurrently start the operation of the apparatus without further threading-up after exchange of the empty bobbin for the wound bobbin.
  • the efficiency of the threading-up operation will be materially improved with the resultant improved availability of the draw-texturing apparatus.
  • the amount of waste yarn produced at the time of the threading-up operation may be reduced to a great extent, due to the low-speed threading-up operation.
  • the reactor is used as a cushion starting circuit in the embodiment of the invention.
  • naturally other known circuits may be used in place thereof.
  • FIGS. 7 and 8 show the other preferred embodiment of the draw-texturing apparatus of the invention.
  • the mechanical construction of the apparatus in this embodiment is very similar to that shown in FIGS. 1, 2 and 3, except for theintermediate floor. Accordingly similar parts are shown by the same reference numerals used in the first embodiment. To avoid duplicate description, the following description will be focussed on the difference between the two embodiments of the invention.
  • the undrawn yarn packages with yarns being spun from a spinning machine are mounted on creel trucks, and the trucks thus loaded with the packages are transferred to the draw-texturing process.
  • the creel trucks with undrawn yarn packages mounted thereon are transferred on to the aforesaid intermediate floor, and then the creel trucks are placed, in fact, at given positions on the intermediate floor, while the undrawn yarns are respectively supplied in this condition to the supply rollers on the draw-texturing apparatus.
  • truck transferring passages located in opposing relation to each other on the aforesaid intermediate floor but in the upper portion of the draw-texturing apparatus.
  • yarn passages leading to the supply rollers above said truck transferring passages with the first threading up operation'floor being formed between said truck transferring passages and the upper portion of the body proper of the apparatus.
  • take-up means on the base floor in opposing relation to each other in the lower portion of the apparatus, with the second threading-up operation floor being provided between said take-up means and the lower portion of the body proper of the draw-texturing apparatus.
  • yarn passages leading to the take-up means underneath the second threading-up operation floor are provided.
  • truck transferring passages 50a and 50b on the intermediate floor Fl Said passages 50a and 50b comprise running boards 9e and side guides 9fadapted togovern the position of a truck.
  • Shown at 51a and 51b are creel trucks which are provided withpegs 54a and 54bin stages, said pegs being adapted to hold the yarn packages 53a and 54b thereon, while said trucks are provided with wheels 55a and 55b on the underside thereof which run on said running boards.
  • yarn drawing guides 9g Provided between said transferring passages are yarn drawing guides 9g corresponding to the packages, respectively, and there is provided guides 9h above said yarn packages.
  • the first space S1 defined between the upper portion of the body proper and the truck transferring passages 50a and 50b is used for the first threading-up operation space, and a portion of the intermediate floor F1 directly under the first space S1 is used as the first threading-up operation floor Fa.
  • the undrawn yarn Y which is being withdrawn from the respective yarn package mounted on the creel trucks adapted to be transferred on the truck transferring passages 50a and 50b, is led through the yarn drawing guides 9g provided midway of said both truck transferring passages, and then through the yarn guide 9): which is provided above the truck transferring passages, then above the operational space Sl, then into the supply guide 56 on the body proper of the apparatus and eventually to the supply roller 3.
  • a single route for creel truck transferring passage may be provided.
  • the apparatus is stopped, another truck carrying a full yarn package thereon is transferred to the place of the former truck, the end of the yarn already in the apparatus is tied up with the end of the yarn from the yarn package on the newly supplied creel truck, and then, the operation of the apparatus is started again.
  • the threading-up operation in the draw-texturing apparatus can be accomplished in a highly economical manner without any trouble.
  • the embodiments shown herein use a yarn breakage detectingmeans 58 which is located upstream of the yarn passage between the yarn guides 12a and 12b located underneath the base floor F2.
  • Another attempt is that there is provided a special type yarn guide in the close vicinity and downstream of the yarn passage with respect to the falsetwisting spindle 5, in an attempt to certainly effect the 1 12 texturing apparatus.
  • a cover of a special design for sound proofing since there tends to be developed noise due to the rotation of the spindles during the high speed rotation of the false-twisting spindles, thereby improving the operational conditions.
  • FIGS. 12A and 12B show theyarn breakage detecting means as used in the draw-texturing apparatus of the invention.
  • the yarn breakage detecting means shown herein permits the positive operation without imparting damage to the yarn having a lesser tensile strength, and includes a yarn breakagedetecting lever 62 on a base plate 61.
  • Said lever 62 has a shaft 63 rotatably journaled in a bearing 64.
  • Attached to the rear end of the yarn breakage detecting lever 62 is a weight 67 of a cylindrical shape provided in a manner that the center of gravity of the lever 62 is located at the point G off-set from the rotational center of the lever 62.
  • the relative position of the micro-switch 68 to the yarn breakage detecting lever 62 is such that, in the normal condition, the weight 67 at the rear end of the lever 62 is located a distance apart from the tip of the lever 68a of the micro-switch 68 (the above distance is preferably as great as possible), and that the weight 67 will be brought into contact with the tip of the lever 68a only when the lever 62 is rotated in the direction of an arrow (A) from the balanced position.
  • a retainer 74 of a leaf-spring Secured with nuts and bolts to the cover 70 of a transparent acrylic plate is a retainer 74 of a leaf-spring which is adaptedto tightly hold the weight 67 in position when the lever 62 is rotated manually in a counterclockwise direction, in the case of the threading-up operation or in the case of resetting after yarn breakage detection.
  • the yarn breakage detecting lever 62 Under the normal condition, the yarn breakage detecting lever 62 is maintained in contact with the travelling yarn under small pressure, by virtue of the adjustment of the weight 67, thereby avoiding the likelihood of occurrence of fluff.
  • the yarn breakage detecting lever 62 Upon occurrence of the yarn breakage, the yarn breakage detecting lever 62 will rotate due to the moment in a direction of an arrow (A), and when the extent of the rotational movement becomes large, the weight 67 will impinge on the tip of the lever 68a of the micro-switch 68, thereby overcomyarn cutter provided upstream of the supply roller 3 in such a manner that the supply of the yarn is interrupted I td' p revent the winding of the yarn around the roller.
  • the cutterreferred to above may be of a type that is adapted to be oper ated by a solenoid.
  • the yarn breakage"detecting lever 62 is normally disconnected mechanically from the micro-switch 68, such that there will be no malfunctioning such as the actuation of the micro-switch, even if the yarn breakage detecting lever

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
US404643A 1972-10-11 1973-10-09 Draw-texturing apparatus Expired - Lifetime US3916609A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1972116795U JPS4970208U (fr) 1972-10-11 1972-10-11

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US (1) US3916609A (fr)
JP (1) JPS4970208U (fr)
BR (1) BR7307900D0 (fr)
CS (1) CS182801B2 (fr)
DE (2) DE2350558B2 (fr)
FI (1) FI55222C (fr)
FR (1) FR2217449B1 (fr)
GB (1) GB1449907A (fr)
IT (1) IT995772B (fr)
NL (1) NL7313984A (fr)
PH (1) PH11640A (fr)
PL (1) PL91086B1 (fr)
TR (1) TR18185A (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4106274A (en) * 1976-03-23 1978-08-15 Ernest Scragg & Sons Limited Yarn texturing machine
US4141206A (en) * 1976-03-23 1979-02-27 Ernest Scragg & Sons Limited Yarn texturing machine
US4201036A (en) * 1978-01-03 1980-05-06 Rieter Machine Works Ltd. False twist machine
US4332132A (en) * 1979-06-25 1982-06-01 Asa S.A. False-twist apparatus
US4972563A (en) * 1988-05-19 1990-11-27 Rieter Scragg Limited Yarn texturing machine
FR2870838A1 (fr) * 2004-06-01 2005-12-02 Rieter Textile Machinery Fr Procede de pilotage des organes d'entrainement lineaire d'un produit filiforme notamment un fil textile pendant la phase de demarrage
CN102108572A (zh) * 2011-03-02 2011-06-29 经纬纺织机械股份有限公司 假捻变形机生头拉杆装置
CN102644138A (zh) * 2012-04-13 2012-08-22 浙江苏拉特纺机有限公司 一种空包机
WO2015062967A1 (fr) * 2013-11-02 2015-05-07 Oerlikon Textile Gmbh & Co. Kg Machine de texturation
US20160079902A1 (en) * 2014-09-17 2016-03-17 Control Techniques Limited Inverter drives having a controlled power output
EP3540104A1 (fr) * 2018-03-16 2019-09-18 TMT Machinery, Inc. Machine d'étirage-texturation
EP4102934A1 (fr) * 2021-06-09 2022-12-14 TMT Machinery, Inc. Dispositif de chauffage et processeur de fil

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CH612454A5 (fr) * 1976-10-28 1979-07-31 Rieter Ag Maschf
IT1065738B (it) * 1976-12-24 1985-03-04 Snia Viscosa Procedimento per la testurizzazione di fibre poliammidiche e fibre poliammidiche testurizzate ottenute secondo il procedimento
DE3311777C2 (de) * 1983-03-31 1987-10-01 D.I.E.N.E.S. Apparatebau GmbH, 6052 Mühlheim Vorrichtung zur Wärmebehandlung synthetischer Fäden
CN1045320C (zh) * 1992-10-08 1999-09-29 巴马格股份公司 假捻卷曲机
EP3047058B1 (fr) * 2013-09-20 2017-06-21 Oerlikon Textile GmbH & Co. KG Machine de texturation

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US3077724A (en) * 1957-09-09 1963-02-19 Leesona Corp Apparatus for processing yarns
US3165881A (en) * 1960-02-03 1965-01-19 Moncuit Yves De Production of high bulk yarns
US3367096A (en) * 1965-06-07 1968-02-06 Alamance Ind Inc Apparatus for false-twisting and plying yarns
US3448571A (en) * 1966-03-07 1969-06-10 Ryohei Tsuzuki Apparatus for feeding spinning material to a spinning machine
US3564829A (en) * 1967-10-19 1971-02-23 Kiyohiro Tsuzuki Apparatus and method for spinning yarn
US3638411A (en) * 1969-12-04 1972-02-01 Teijin Seiki Co Ltd False twist crimping apparatus
US3708970A (en) * 1971-01-29 1973-01-09 Fiber Industries Inc Yarn process

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US3077724A (en) * 1957-09-09 1963-02-19 Leesona Corp Apparatus for processing yarns
US3070948A (en) * 1960-01-14 1963-01-01 Tsuzuki Ryohei Spinning frames
US3165881A (en) * 1960-02-03 1965-01-19 Moncuit Yves De Production of high bulk yarns
US3367096A (en) * 1965-06-07 1968-02-06 Alamance Ind Inc Apparatus for false-twisting and plying yarns
US3448571A (en) * 1966-03-07 1969-06-10 Ryohei Tsuzuki Apparatus for feeding spinning material to a spinning machine
US3564829A (en) * 1967-10-19 1971-02-23 Kiyohiro Tsuzuki Apparatus and method for spinning yarn
US3638411A (en) * 1969-12-04 1972-02-01 Teijin Seiki Co Ltd False twist crimping apparatus
US3708970A (en) * 1971-01-29 1973-01-09 Fiber Industries Inc Yarn process

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4106274A (en) * 1976-03-23 1978-08-15 Ernest Scragg & Sons Limited Yarn texturing machine
US4141206A (en) * 1976-03-23 1979-02-27 Ernest Scragg & Sons Limited Yarn texturing machine
US4201036A (en) * 1978-01-03 1980-05-06 Rieter Machine Works Ltd. False twist machine
US4291529A (en) * 1978-03-01 1981-09-29 Rieter Machine Works, Ltd. False twist machine
US4365468A (en) * 1978-03-01 1982-12-28 Rieter Machine Works, Ltd. False twist machine
US4332132A (en) * 1979-06-25 1982-06-01 Asa S.A. False-twist apparatus
US4972563A (en) * 1988-05-19 1990-11-27 Rieter Scragg Limited Yarn texturing machine
FR2870838A1 (fr) * 2004-06-01 2005-12-02 Rieter Textile Machinery Fr Procede de pilotage des organes d'entrainement lineaire d'un produit filiforme notamment un fil textile pendant la phase de demarrage
WO2005118448A1 (fr) * 2004-06-01 2005-12-15 Rieter Textile Machinery France Procede de pilotage des organes d'entrainement lineaire d'un produit filiforme notamment un fil textile pendant la phase de demarrage et le dispositif de mise en oeuvre
US20070277717A1 (en) * 2004-06-01 2007-12-06 Rieter Textile Machinery France Method For Control Of Linear Drive Devices For A Thread-Like Product In Particular A Textile Thread During The Start-Up Phase And Device For Carrying Out The Same
CN102108572A (zh) * 2011-03-02 2011-06-29 经纬纺织机械股份有限公司 假捻变形机生头拉杆装置
CN102108572B (zh) * 2011-03-02 2013-03-13 经纬纺织机械股份有限公司 假捻变形机生头拉杆装置
CN102644138A (zh) * 2012-04-13 2012-08-22 浙江苏拉特纺机有限公司 一种空包机
CN102644138B (zh) * 2012-04-13 2015-08-05 浙江苏拉特纺机有限公司 一种空包机
WO2015062967A1 (fr) * 2013-11-02 2015-05-07 Oerlikon Textile Gmbh & Co. Kg Machine de texturation
CN105683430A (zh) * 2013-11-02 2016-06-15 欧瑞康纺织有限及两合公司 变形机
US20160079902A1 (en) * 2014-09-17 2016-03-17 Control Techniques Limited Inverter drives having a controlled power output
US9647592B2 (en) * 2014-09-17 2017-05-09 Nidec Control Techniques Limited Inverter drives having a controlled power output
US9906180B2 (en) 2014-09-17 2018-02-27 Nidec Control Techniques Limited Inverter drives having a controlled power output
EP3540104A1 (fr) * 2018-03-16 2019-09-18 TMT Machinery, Inc. Machine d'étirage-texturation
EP4102934A1 (fr) * 2021-06-09 2022-12-14 TMT Machinery, Inc. Dispositif de chauffage et processeur de fil

Also Published As

Publication number Publication date
FI55222B (fi) 1979-02-28
FR2217449A1 (fr) 1974-09-06
TR18185A (tr) 1978-02-26
PH11640A (en) 1978-05-08
CS182801B2 (en) 1978-05-31
DE2350558B2 (de) 1976-10-21
PL91086B1 (fr) 1977-02-28
NL7313984A (fr) 1974-04-16
GB1449907A (en) 1976-09-15
BR7307900D0 (pt) 1974-07-25
JPS4970208U (fr) 1974-06-19
IT995772B (it) 1975-11-20
FI55222C (fi) 1979-06-11
DE2350558A1 (de) 1974-05-02
FR2217449B1 (fr) 1977-05-27
DE2365525A1 (de) 1975-07-17

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