EP0622486A1 - Dispositif enrouleur d'étoffe pour métiers à tricoter circulaires - Google Patents

Dispositif enrouleur d'étoffe pour métiers à tricoter circulaires Download PDF

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Publication number
EP0622486A1
EP0622486A1 EP93119684A EP93119684A EP0622486A1 EP 0622486 A1 EP0622486 A1 EP 0622486A1 EP 93119684 A EP93119684 A EP 93119684A EP 93119684 A EP93119684 A EP 93119684A EP 0622486 A1 EP0622486 A1 EP 0622486A1
Authority
EP
European Patent Office
Prior art keywords
fabric
delivery
take
tension
roll
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.)
Withdrawn
Application number
EP93119684A
Other languages
German (de)
English (en)
Inventor
Takao Shibata
Kozo Taniguchi
Tashio Noguchi
Koji Tsuchiya
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.)
Precision Fukuhara Works Ltd
Original Assignee
Precision Fukuhara Works Ltd
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
Priority claimed from JP4351754A external-priority patent/JPH06173146A/ja
Application filed by Precision Fukuhara Works Ltd filed Critical Precision Fukuhara Works Ltd
Publication of EP0622486A1 publication Critical patent/EP0622486A1/fr
Withdrawn legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/88—Take-up or draw-off devices for knitting products

Definitions

  • This invention relates to circular knitting machines and more particularly to a fabric take-up mechanism for such circular knitting machines.
  • Circular knitting machines have rotating cylinders and knitting instrumentalities which produce a tubular fabric which rotates with the cylinder. It is known to withdraw the fabric being formed downwardly through the rotating cylinder by a fabric take-up mechanism including a plurality of delivery rolls which flatten the tubular fabric and wind the flattened fabric around a take-up roll. In such circular knitting machines, the take-up mechanism rotates synchronously with the cylinder to avoid twisting of the fabric as it rotates with the needle cylinder.
  • the take-up speed of the take-up mechanism of the circular knitting machine is adjusted while the machine is not in operation to a preset value calculated to maintain the fabric under tension when the knitting machine knits the maximum length of fabric it is capable of producing for that type of fabric.
  • tension in the fabric as reflected in at least one of the delivery rolls will gradually increase during knitting to the point that the fabric is torn or knitting needles are placed under sufficient stress that breakage occurs. Previous attempts to solve this problem have either failed or have been only partially successful.
  • One such prior attempt provides a detector for detecting substantial increases in tension in the fabric and a stop motion to stop the knitting machine when such tension exceeds a predetermined maximum allowable value. While avoiding torn fabric or breakage of needles, such an attempt resulted in substantial downtime for knitting machines and reduced production, as well as substantial operator time in making manual adjustments of the take-up speed of the knitting machines.
  • This invention provides improved take-up mechanisms for circular knitting machines that are preferably based on the applicant's prior take-up system disclosed in European Patent Application No. 93116325.7, filed October 8, 1993.
  • the latter measures tension of a circular knit fabric during knitting of the fabric and adjusts, in response to changes in fabric tension, the speed of fabric delivery rolls which receive knit fabric from the circular knitting machine and the speed of a take-up roll which receives the fabric from the delivery rolls.
  • this take-up mechanism substantially improves knit fabric tension uniformity, the adjustment of take-up speed can be influenced by various factors other than changes in fabric tension resulting from variations in knitting.
  • a take-up mechanism for a circular knitting machine which more accurately adjusts windup speed in response to variations in tension in the fabric being received from the circular knitting machine.
  • Another object of the invention is to more accurately and reliably sense circular knit fabric tension changes during manufacture thereof.
  • Yet another object of the invention is to provide windup speed adjustment in a take-up mechanism for a circular knit fabric which adjusts windup speed in response to fabric tension variations attributable to knitting, while minimizing adjustment of windup speed in response to variations in fabric tension resulting from other causes.
  • the present invention provides a take-up mechanism including a plurality of delivery rolls which receive fabric from the circular knitting machine cylinder, flattens the fabric and delivers the fabric to a take-up roll which winds the flattened fabric thereabout to form a roll of fabric.
  • the take-up mechanism of this invention includes tension sensing means for selectively sensing fabric tension variations in a predetermined direction, preferably the direction of fabric travel from the knitting machine to the take-up mechanism.
  • tension in the predetermined direction varies above or below a predetermined value
  • a variable speed motor drive means that is connected to the sensing means and includes a control means varies the speed of the motor drive for the delivery rolls and/or the take-up roll, to maintain a substantially uniform desired tension in the fabric.
  • selective fabric tension sensing is accomplished by selectively sensing transverse movement of at least one delivery roll in the predetermined direction. More preferably, selective fabric tension sensing is accomplished by selectively sensing tension of at least one delivery roll in a predetermined direction transverse to its axis of rotation, preferably in the direction of fabric travel from the knitting machine to the delivery rolls.
  • fabric tension sensing by the tension sensing mechanism is improved by minimizing or eliminating the effects of fabric tension changes occurring in the delivery rolls and/or between the delivery rolls and the fabric windup roll.
  • this is accomplished by directing the knit fabric along a path of travel between the delivery rolls and the windup roll, in a direction substantially transverse to the path of fabric travel between the knitting machine cylinder and the delivery rolls.
  • the take-up mechanism includes delivery rolls positioned substantially vertically below the knitting cylinder of a circular knitting machine, and a guide roll positioned between the delivery rolls and the winder at a location defining a substantially horizontal path of fabric travel.
  • a circular knitting machine generally indicated at 320 , which includes a bed 321 supported by a plurality of legs 322 and 323 connected near their lower ends by a base frame member 324 .
  • the bed 321 supports a ring gear 325 for drivingly rotating a needle cylinder 326 rotatably mounted on bed 321 .
  • Knitting machine 320 includes knitting instrumentalities (not shown) which produce a seamless tubular knit fabric 327 which depends downwardly through the cylinder 326 .
  • a fabric take-up mechanism is generally indicated at 330 and includes a supporting framework which mounts the take-up mechanism 330 from ring gear 325 and base member 324 for rotation synchronously with the cylinder 326 .
  • This framework includes brackets 331 suspended from ring gear 325 and depending downwardly and outwardly therefrom.
  • a pair of side frame members 332 are mounted at their upper ends on brackets 331 and depend downwardly therefrom and are connected together at their lower ends by a bottom frame member 333 .
  • Bottom frame member 333 is rotatably mounted on base member 324 by a bearing box 334 .
  • the supporting structure for the take-up mechanism 330 is more particularly shown and described in United States Patent No. 4,671,083 issued June 9, 1987, which disclosure is incorporated herein by reference.
  • the take-up mechanism 330 further includes a set of fabric delivery rolls, which as illustrated in Figures 1, 2, 8 and 11-13, is a set of three rolls 335 , 336 and 337 .
  • the delivery rolls are each mounted for rotation about an axis of rotation, shown as shaft 339 for roll 335 .
  • the delivery rolls co-act together to form nips therebetween through which the fabric 327 is threaded.
  • the fabric 327 passes first through the nip between rolls 336 and 337 , then around the bottom of roll 336 and upwardly through the nip between rolls 335 and 336 , and then around roll 335 to a take-up roll 340 .
  • This is shown in Figure 11 as path a .
  • the take-up roll 340 is journaled for free rotation on bearings 341 , located at opposite ends thereof and mounted on the side frame members 332 .
  • the delivery rolls 336 and 337 are journaled for rotation at their opposite ends on pivotal mounting members 301 , 302 which are pivotally mounted at their lower ends to the side frame members 332 by bolts 352 and 353 .
  • the delivery roll 335 is mounted in the center of the three delivery roll arrangement with the driven delivery rolls 336 and 337 mounted in horizontal alignment on opposite sides thereof.
  • this tension can cause the delivery rolls to move in the same direction, i.e., in the case of the delivery roll 335 , in a direction substantially transverse (may also be slightly oblique) to its axis of rotation 339 , that is vertically upward.
  • the first direction of tension and/or roll movement is normally parallel to the path of the fabric 327 as it enters into the delivery rolls 335 and 337 , i.e., vertically upwardly in the case of the apparatus shown in the drawings.
  • the second or different direction of tension can be in any of various directions which are generally perpendicular or oblique with respect to the path of the fabric as described immediately above.
  • the subject invention provides for the sensing of transverse movement and or tension changes of at least one delivery roll, preferably delivery roll 335 , in the first or vertical direction in order to more accurately reflect changes in the fabric tension.
  • this is accomplished by employing a sensing mechanism that senses the transverse movement of the delivery roll 335 in the first or vertical direction, while also substantially ignoring the effect of movement and tension changes on the delivery roll 335 in the second or lateral direction.
  • the present invention can substantially improve circular knitting because it is vertical movement which, when adjusted through increasing or decreasing the rotation of the delivery rolls 335 , 336 , and 337 , and possibly take-up roll 340 , allows tension in the fabric, as reflected in the delivery roll 335 , to remain substantially constant, thereby avoiding undesirable damage to the fabric and possibly the needles within the needle cylinder 326 .
  • the three delivery rolls are connected by a pair of tension springs 307 which bias the delivery rolls 336 and 337 against the center delivery roll 335 .
  • the springs are connected to the pivotal mounting members 301 and 302 by horizontally mounted studs 305 and 306 , respectively.
  • the delivery rolls 335 , 336 and 337 are able to move laterally away from each other, against the force of the springs 307 as a result of various lateral forces applied thereto during operation. Such lateral forces may result from a change in fabric tension, changes in the speed of the variable speed motor 360 , differences in the relative speed of the delivery rolls, etc.
  • the subject invention provides an arrangement where increased lateral tension, no matter the cause, as reflected in the delivery roll 335 , will result in substantially no, or only minimal adjustment of the speed of fabric take-up.
  • the sensor mechanism is adapted to minimizes the possibility that such lateral movements of the delivery rolls will interfere with accurate measurement of changes in fabric tension.
  • the delivery roll 335 is journaled for rotation at its opposite ends on a first bracket 397 which is fixedly mounted on side frame members 332 by bolts 352 and 353 at one end thereof.
  • the first bracket 397 has a generally rectangular configuration which is positioned between the pivotal mounting members 301,302 and the side frame members 332 .
  • the upper surface of the first bracket defines a pair of openings 403 adapted to receive the pair of second fasteners 402 .
  • the first bracket also defines an aperture 405 for receiving the delivery roll 335 .
  • a second bracket 398 is mounted in contact with the end of the first bracket 397 , opposite the bolts 352 and 353 , such that a mounting surface 401 of the second bracket contacts the first bracket.
  • the first bracket is fixed at the bottom portion thereof by these bolts and at the top by the pair of second fasteners 402 .
  • the bolts 352 , 353 are mounted at the bottom of the first bracket and the second bracket is mounted on top of the first bracket, as shown in Figures 2, 4 and 5. It is to be understood however, that the arrangement of the bolts 352 , 353 and the second bracket may be reversed while remaining within the spirit of the invention.
  • the second bracket 398 has a generally rectangular configuration and is attached to the side frame members 332 by a pair of first fasteners 399 located at opposed ends of the second bracket. Adjacent the opposed ends of the second bracket are a pair of cutouts 400 which have a generally hour-glass shape such that the longitudinal axis of the hour-glass shape runs along the longitudinal axis of the second bracket. Each hour-glass shape defines a pair of a neck portions 407 which define the locations at which each cutout can flex. The pair of cutouts 400 are oriented so that they allow the second bracket 398 to flex in response to movement by the delivery roll 335 . Located adjacent the pair of cutouts 400 , toward the center of the second bracket, are a pair of second fasteners 402 which secure the second bracket to the top of the first bracket 397 .
  • each of the sensors are strain gauges which are connected via Wheatstone bridge to provide a single signal representative of the vertical tension.
  • each of the strain gauges will detect any flexion of the second bracket 398 in response to movement of at least one of the delivery rolls (in this embodiment delivery roll 335 ). In other words, any tension applied to the delivery roll results in flexing of the second bracket 398 at each of the cutouts 400 .
  • each strain gauge 404a-d emits a signal representative, in part, of the amount of vertical tension being applied to the cutout 400 in the second bracket.
  • Such vertical tension in turn reflects the amount of vertical tension being applied to the delivery roll 335 , and in turn this tension is representative of the amount of vertical tension being applied to the fabric.
  • the Wheatstone bridge configuration of the strain gauges acts to minimize or eliminate the undesirable force component of the tension (in this embodiment lateral tension) applied to the delivery roll 335 to thereby provide a signal selectively representative of substantially vertical tension applied to the fabric as a result of the knitting process. Because of the arrangement of the strain gauges at plural locations for sensing tension in the delivery roll, the lateral forces applied to the second bracket work in opposition to and cancel each other out so that the resultant signal is representative of the vertical tension.
  • FIGS 9 and 10 Operation of the strain gauges responsive to various forces is illustrated in Figures 9 and 10.
  • the strain gauges 404a-d are shown in position on top of the second bracket 398 and also individually below the second bracket to illustrate how they are affected by the transverse movement of the first bracket 397 against the second bracket 398 as a result of corresponding transverse movement of the delivery roll 335 against the first bracket relative to its axis of rotation 339 .
  • Figure 9 represents a purely vertical transverse movement of the delivery roll 335 .
  • the first bracket moves vertically against the second bracket causing the second bracket to flex at neck portions 407 of cutouts 400 .
  • strain gauges 404a-d will each sense the a portion of the vertical tension applied as reflected in the flexing of the second bracket.
  • the magnitude of the individual strain gauge readings obtained are reflected by the blocks which appear below the second bracket in Figure 9.
  • strain gauges 404a and 404d obtain substantially identical readings of decreased magnitude reflecting compression.
  • strain gauges 404b and 404c each provide substantially identical readings reflecting a great deal of strain increase because the flexion is almost purely vertical.
  • the four signals from the four strain gauges are then combined in the Wheatstone bridge to provide a single value which will be compared to a predetermined tension value. If the value is greater or less than the predetermined value, a signal will be sent to the control circuit 383 which will send a signal to the motor control 381 to either speed up the motor driving the delivery rolls (in this embodiment 335 ) to adjust the tension in the fabric back to the desired level.
  • Figure 10 illustrates the result of transverse movement in both the vertical and lateral directions.
  • the strain gauges 404a-d not only measure the magnitude and direction of the tension in the same fashion as previously described, but they also minimize the lateral portion of the tension applied.
  • the strain at sensor 404a is decreased due to compression resulting from lateral movement of bracket 397 laterally
  • the strain at sensor 404d is increased due to extension resulting from lateral movement.
  • the strain at sensor 404b reflects increased strain due both to vertical and lateral movement
  • the strain at sensor 404c reflects both increased strain resulting from vertical movement along with decreased strain caused by lateral movement.
  • delivery rolls 335 , 336 and 337 are driven by a drive means which includes a variable speed, out-rotor type DC motor 360 , such as, a motor made by Itoh Electric, K.K.
  • Motor 360 drives reduction gearing 361 which, in turn, drives delivery roll 335 .
  • Motor 360 and gearing 361 are housed within the hollow delivery roll 335 and are mounted on a stub shaft 362 which also mounts roll 335 for rotation.
  • Control means is provided for controlling the speed of the motor 360 that drives delivery rolls 335 , 336 and 337 in accordance with the signals generated by the tension sensing means of the present invention.
  • the control means 380 includes a motor control 381 which is connected to a suitable power source 382 , such as a DC power source.
  • Motor control 381 is connected to motor 360 and receives a feedback signal from motor 360 concerning the state of operation of motor 360 at any given time. If the signal from the strain gauges 404a-d indicates a decrease in fabric tension from the desired preset value, as reflected in the delivery roll 335 , the control means 380 will cause motor 360 to drive delivery roll 335 , 336 and 337 faster until the fabric tension equals the desired predetermined value. If the signal from the strain gauges 404a-d indicates an increase in tension above the preset value, the control means 380 will cause the motor 360 to drive the delivery rolls at a slower speed until the tension in the fabric is reduced to the desired predetermined value.
  • the pivotal mounting members 301 and 302 cooperate with a cam member 310 and an operating lever 311 .
  • the pivotal mounting members 310 and 302 each have an extension 301a and 302a , respectively which are located at the end opposite the end mounted by bolts 352 and 353 .
  • the pivotal mounting members 301 and 302 each have cam portions or surfaces 336a and 337a , respectively, located at extensions 301a and 302a , in between which the cam member 310 is mounted.
  • the cam member 310 cooperates with the operating lever 311 connected thereto for manual pivotal movement of the cam member against the cam surfaces 336a and 337a of the pivotal members 301 and 302 , respectively to pivot the pivotal members 301 and 302 away from each other and to thereby laterally move the delivery rolls 336 and 337 away from the center mounted delivery roll 335, to manually release tension between the delivery rolls and the fabric to allow the take-up roll 340 to be removed from the circular knitting machine 320 .
  • Figure 13 illustrates an alternative embodiment of a first bracket 497 .
  • the first bracket has a generally rectangular body portion 581 which has a shape similar to the first bracket 397 previously described.
  • a head portion 598 which has a similar shape to previously described second bracket 398 .
  • the head portion 598 only has first fasteners 502 for mounting the bracket 497 onto the side frame members 332 .
  • the neck portion 507 Joining the body portion 581 to the head portion 598 is a neck portion 507 .
  • the neck portion is generally rectangular and is in longitudinal alignment with the body portion 581 .
  • the neck portion defines a generally rectangular cutout 500 which in turn defines two thin vertical flexible necks 508a and 508b located on opposed sides of the cutout 500 .
  • These separate flexible vertical necks in this embodiment function in the same manner as the horizontal necks in the previously described embodiment to provide a plurality of flex points allowing selective measurement of vertical tension or movement of the delivery roll 335 .
  • a plurality of strain gauges 504a-d are positioned adjacent the flexible necks 508a and 508b .
  • two strain gauges are positioned adjacent each neck, each being placed on one opposed side thereof.
  • all four strain gauges sense compression.
  • lateral forces result in the lateral bending of one or both necks.
  • one side of the neck is elongated, while the opposed side thereof is compressed.
  • transverse movement of the delivery roll 335 provides strain readings that cancel out one another, while vertical movement thereof provides additive strain readings.
  • this embodiment functions in the same manner as the embodiment previously described in detail.
  • Figures 11 and 14 illustrate another embodiment of the invention in which fabric tension sensing by the tension sensing mechanism is improved by minimizing or eliminating the effects of fabric tension changes occurring in the delivery rolls and/or between the delivery rolls and the fabric windup roll.
  • the path of fabric travel is changed in order to change the direction of tension applied to delivery rolls due to fabric tension changes within or downstream of the delivery rolls. This can be accomplished according to the invention by employing any one of several alternative paths for winding the fabric 327 onto the take-up roll 340 .
  • FIG. 11 Preferred alternative paths in accordance with this aspect of the invention are shown as paths b , and c-d , in Figure 11.
  • Figures 11, 12 and 14 also illustrate alternative embodiments of the take-up mechanism 330 modified for achieving these fabric paths.
  • a guide roll 410 which is mounted in horizontal lateral alignment with the delivery rolls 335 , 336 and 337 , downstream thereof, i.e., between the delivery rolls and the take-up roll.
  • the guide roll 410 can be mounted in a fixed location or mounted to allow a desired amount of pivoting about a spring biased mounting lever (not shown) so as to be flexible.
  • a second guide roll 411 is positioned in horizontal alignment with the delivery rolls 335 , 336 and 337 , upstream thereof, opposite from the first guide roll 410 .
  • the guide roll 410 or rolls 410 and 411 function to direct the knit fabric exiting and/or entering the delivery rolls, along a path of travel in a direction substantially transverse to the path of fabric travel between the knitting machine cylinder and the delivery rolls.
  • changes in fabric tension during travel of the fabric 327 within the delivery rolls and/or between the delivery rolls and the take-up roll 340 result in the application of tension to the delivery rolls in a direction substantially transverse to the direction of fabric travel between the knitting machine cylinder and the delivery rolls.
  • Such tension changes can result from various causes such as, for example, by changing winder speed and the like, and in some instances can interfere with accurate sensing of the fabric tension between the knitting machine and the delivery rolls.
  • path a which has previously been described in connection with Figures 2-6 directs the fabric between delivery roll 335 and 337 , then around delivery roll 335 onto delivery roll 336 and then to take-up roll 340 .
  • path a it can be seen that any changes in fabric tension downstream of the last delivery roll 336 can result in the application of vertical force on the delivery roll 336 .
  • lateral movement of roll 336 in the direction away from the center delivery roll 335 can increase the tension the fabric applies vertically to roll 335 , as it travels beneath this roll.
  • Path b of Figure 11 and the corresponding apparatus illustrated in Figure 12 illustrate one preferred method and apparatus for substantially decreasing the effects of varying fabric tension occurring within or downstream of the carrier rolls 335 , 336 , and 337 .
  • the take-up mechanism includes delivery rolls 335 , 336 , and 337 positioned substantially vertically below the knitting cylinder of the circular knitting machine, and a guide roll 410 positioned between the delivery rolls and the winder at a location defining a substantially horizontal path of fabric travel.
  • Path b employed in this embodiment is similar to path a , described above, except that the fabric 327 travels from the delivery roll 336 in a horizontal direction onto the guide roll 410 before travelling vertically downwardly to take-up roll 340 .
  • Path c-d of Figure 11 employs a guide roll 411 upstream of the delivery rolls 335 , 336 , and 337 .
  • the fabric 327 initially follows path a or b but rather than being wound into a roll following passage across guide roll 410 , the fabric travels along path c back up to and over the second guide roll 411 and is then directed back between the nip of delivery rolls 335 and 337 then follows path d onto the take-up roll 340 .
  • fabric take-up on roll 340 can be accomplished using the force supplied to the fabric 327 by the driven delivery rolls 336 and 337 without requiring use of a separate driven roll 412 (shown in Figure 11) for rotation of the take-up roll 340 .
  • This can further improve sensing of fabric tension by eliminating fabric tension changes that might result from possible temporary inconsistencies between the speed of the take-up roll 340 and the speeds of the driven delivery rolls 336 and 337 which might occur during changes in the speed of the separate drive mechanism for the take-up roll 340 .
  • Figure 14 illustrates an embodiment which is has a mounting arrangement for the first delivery roll 337 that is different than that previously described.
  • a lever arm 513 supporting delivery roll 337 is not pivotally mounted on the first bracket 397 at an angle relative to the center delivery roll 335 .
  • this lever arm 513 which provides pivoting of the roll 337 is pivotally mounted directly to the side frame members 332 and is biased in a substantially vertical position so that fabric tension from the fabric on path c does not cause pivoting of the lever arm.
  • the invention is susceptible to numerous variations not specifically discussed herein.
  • the strain gauges with optical sensors or the like to selectively sense variations is fabric and/or delivery roll position and tension and still remain within the spirit of the invention.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
EP93119684A 1992-12-07 1993-12-07 Dispositif enrouleur d'étoffe pour métiers à tricoter circulaires Withdrawn EP0622486A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP351754/92 1992-12-07
JP4351754A JPH06173146A (ja) 1992-10-09 1992-12-07 丸編機における巻取部の駆動装置

Publications (1)

Publication Number Publication Date
EP0622486A1 true EP0622486A1 (fr) 1994-11-02

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EP93119684A Withdrawn EP0622486A1 (fr) 1992-12-07 1993-12-07 Dispositif enrouleur d'étoffe pour métiers à tricoter circulaires

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2316955A (en) * 1996-09-05 1998-03-11 Pai Lung Machinery Mill Co Ltd A fabric rolling-up device with automatic torque increase circuit.
EP2546401A1 (fr) * 2011-07-13 2013-01-16 Precision Fukuhara Works, Ltd. Procédé et dispositif de commande de rattrapage de tissu dans une machine de tricotage de motifs électronique
EP2918713A4 (fr) * 2012-11-07 2016-08-10 Precision Fukuhara Works Ltd Procédé et dispositif de régulation de l'enroulement dans une machine à tricoter circulaire

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3031152A (en) * 1958-04-28 1962-04-24 Dusenbery Co John Improved apparatus for measuring, indicating, and controlling web tension
US3842627A (en) * 1969-07-28 1974-10-22 Travis Mills Corp Means for rolling up tubular fabric produced by a circular knitting machine
EP0148727A1 (fr) * 1983-12-06 1985-07-17 Battelle Memorial Institute Mécanisme d'enroulement d'un tissu pour métier à tricoter circulaire
US4671083A (en) * 1985-01-25 1987-06-09 Precision Fukuhara Works, Ltd. Driving apparatus in take up unit of circular knitting machine
EP0237493A1 (fr) * 1986-03-14 1987-09-16 E.M.M. EMILIANA MACCHINE MAGLIERIE s.r.l. Dispositif pour contrôler la tension du tricot pendant le tricotage dans les métiers à tricoter rectilignes automatiques

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3031152A (en) * 1958-04-28 1962-04-24 Dusenbery Co John Improved apparatus for measuring, indicating, and controlling web tension
US3842627A (en) * 1969-07-28 1974-10-22 Travis Mills Corp Means for rolling up tubular fabric produced by a circular knitting machine
EP0148727A1 (fr) * 1983-12-06 1985-07-17 Battelle Memorial Institute Mécanisme d'enroulement d'un tissu pour métier à tricoter circulaire
US4671083A (en) * 1985-01-25 1987-06-09 Precision Fukuhara Works, Ltd. Driving apparatus in take up unit of circular knitting machine
EP0237493A1 (fr) * 1986-03-14 1987-09-16 E.M.M. EMILIANA MACCHINE MAGLIERIE s.r.l. Dispositif pour contrôler la tension du tricot pendant le tricotage dans les métiers à tricoter rectilignes automatiques

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2316955A (en) * 1996-09-05 1998-03-11 Pai Lung Machinery Mill Co Ltd A fabric rolling-up device with automatic torque increase circuit.
GB2316955B (en) * 1996-09-05 2000-08-02 Pai Lung Machinery Mill Co Ltd Fabric rolling-up device and control circuit assembly
EP2546401A1 (fr) * 2011-07-13 2013-01-16 Precision Fukuhara Works, Ltd. Procédé et dispositif de commande de rattrapage de tissu dans une machine de tricotage de motifs électronique
EP2918713A4 (fr) * 2012-11-07 2016-08-10 Precision Fukuhara Works Ltd Procédé et dispositif de régulation de l'enroulement dans une machine à tricoter circulaire

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