EP1731649B1 - Mécanisme d'enroulement d'un tricot haut sur jambes à haute vitesse avec dispositif pour établir une tension d'enroulement constante - Google Patents

Mécanisme d'enroulement d'un tricot haut sur jambes à haute vitesse avec dispositif pour établir une tension d'enroulement constante Download PDF

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Publication number
EP1731649B1
EP1731649B1 EP05104851A EP05104851A EP1731649B1 EP 1731649 B1 EP1731649 B1 EP 1731649B1 EP 05104851 A EP05104851 A EP 05104851A EP 05104851 A EP05104851 A EP 05104851A EP 1731649 B1 EP1731649 B1 EP 1731649B1
Authority
EP
European Patent Office
Prior art keywords
shaft
fabric
wheel
take
transmission assembly
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.)
Not-in-force
Application number
EP05104851A
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German (de)
English (en)
Other versions
EP1731649A1 (fr
Inventor
Shih-Chi Chen
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.)
Pai Lung Machinery Mill Co Ltd
Original Assignee
Pai Lung Machinery Mill Co 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
Application filed by Pai Lung Machinery Mill Co Ltd filed Critical Pai Lung Machinery Mill Co Ltd
Priority to ES05104851T priority Critical patent/ES2382194T3/es
Priority to AT05104851T priority patent/ATE548491T1/de
Priority to PL05104851T priority patent/PL1731649T3/pl
Priority to EP05104851A priority patent/EP1731649B1/fr
Publication of EP1731649A1 publication Critical patent/EP1731649A1/fr
Application granted granted Critical
Publication of EP1731649B1 publication Critical patent/EP1731649B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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

  • the present invention relates to fabric take-up devices and more particularly to a high-speed high-stand fabric take-up device having an arrangement for applying same pressing force on fabric being wound around a take-up shaft such that a fabric roll with uniform tautness can be obtained around the shaft.
  • a take-up device In a knitting machine, a take-up device is typically employed to wind fabric in rolls.
  • One type of take-up device can wind fabric in rolls having a diameter of about 20 inches. It is not widely employed due to its small capacity.
  • the other type of take-up device which is more widely employed due to its higher capacity, can wind fabric rolls having a diameter of about 46 inches (i.e., fabric weight more than 100 kg).
  • the fabric is pliable in nature. Thus, there tends to be a waste of fabric in the winding process.
  • the fabric take-up apparatus 100 comprises two sets of friction mechanisms 110.
  • Each friction mechanism 110 has two operating arms 112 each having axles 112a and 112b both at the same side of and above an axis of the shaft 120 for taking up fabric.
  • a virtual line from one operating arm 112 to the other operating arm 112 is about perpendicular to a virtual line extended upward from the axis of the shaft 120 in the fabric winding process.
  • forces applied on the fabric 10 is provided by the weight of the edge of the friction rods 111.
  • the extent of the perpendicularity is almost 90 degrees as the fabric 10 continues to be wound around the shaft 120 (i.e., diameter of fabric 10 increases).
  • a force applied on the fabric 10 is provided by the weight of the whole friction rods 111.
  • the force applied on the fabric 10 is not constant in the fabric winding process.
  • the force applied on the fabric 10 is increasing in the process.
  • a balancing weight mechanism 130 is provided below the shaft 120.
  • the balancing weight mechanism 130 is adapted to provide same the pressing force on the fabric 10 being wound.
  • the provision of friction mechanisms 110 and balancing weight mechanism 130 may inevitably increase the manufacturing cost and complicate the components of the fabric take-up apparatus 100. Thus, the need for improvement still exists.
  • EP 0 591 988 A1 discloses a device for taking up fabric according to the preamble of claim 1.
  • the fabric take-up mechanism includes a bracket, a pair of side frame members, a bottom frame member, a bearing box and a plurality of rolls.
  • the bracket and the bottom frame member are disposed on the top and bottom of the frame members.
  • the bearing box is mounted below the frame members.
  • a Take-up roll and a driving roll are located between the frame members.
  • the Take-up roll is journaled for free rotation in bearings at opposite ends thereof mounted on the side frame members, and the driving roll is journaled for rotation at its opposite ends in bearings carried by mounting members which is connected with brackets through pivots.
  • a fabric is delivered to the take-up roll through the plurality of rolls that are driven by a motor and a plurality of gears.
  • the driving roll is also driven by a motor.
  • the motors are installed inside the roll and the take-up roll, respectively.
  • a proximity sensing device is mounted on the frame members, which determines the tension in the fabric through detecting the movement of a swing arm to change the rotation speed of the motors by a control means. Mounting the motors inside the rollers requires, however, a complicated mechanical configuration and electronic control.
  • US 6,000,246 discloses a take-up device including first and second vertical side panels, a cloth-transfer cylinder connected between the vertical side panels adjacent a top side of the vertical side panels, and two impression cylinders connected in parallel between the vertical side panels and peripherally disposed in contact with the cloth-transfer cylinder at two opposite sides for guiding a finished piece of knitted fabric over the cloth-transfer cylinder.
  • the cloth take-up cylinder is connected between the support arms.
  • a transmission shaft is coupled to a main bevel gear by an auxiliary bevel gear.
  • a gear train is coupled to the main bevel gear by another auxiliary bevel gear, and a belt transmission mechanism is mounted on the second vertical side panel.
  • GB 2 276 636 A discloses another take-up device for fabrics, including transmission assemblies disposed in vertical side boxes of the device. These transmission assemblies drive, however, only an upstream supply mechanism and a tensioning roller.
  • an angle of a friction rod from its initial inoperative position to its maximum operating position is much less than that of the prior art. This is because the weight of the whole friction rod is applied on the fabric being wound around a take-up shaft while the diameter of the fabric is increasing. Furthermore, the pressing force exerted by the friction rod on fabric is the same during the fabric take-up process. As a result, a fabric roll with uniform tautness can be obtained. Moreover, the constituent components of the fabric take-up device are simplified, resulting in a reduction in its manufacturing cost.
  • a device for taking up fabric from a knitting machine comprises all features according to claim 1 including two side boxes each including a projection formed on its side proximate top; a take-up shaft disposed across intermediate portions of the side boxes, the take-up shaft being adapted to wind fabric therearound; and a friction mechanism, which is U-shaped and includes two arms each having a first end and an opposite second end, said arms being pivotably supported at said first end, wherein a friction rod fixedly interconnects said second ends of the arms, the friction rod being disposed above the take-up shaft to contact the fabric wound therearound.
  • an angle from an initial inoperative position of the arms to a maximum operating position thereof is limited to a predetermined range as a diameter of the fabric is increasing, and a pressing force exerted by the friction rod on the fabric being wound around the take-up shaft is the same during the fabric take-up process.
  • a high-speed high-stand fabric take-up device 200 of high capacity in accordance with a preferred embodiment of the invention comprises two side boxes 210, a take-up shaft 220, a friction mechanism 230, a speed change mechanism 240, a first transmission assembly 250, a second transmission assembly 260, a third transmission assembly 270, a fourth transmission assembly 280, and a supply mechanism 290.
  • a take-up shaft 220 for a preferred embodiment of the invention.
  • a triangular projection 211 is formed on a side of the side box 210 proximate its top.
  • the take-up shaft 220 is provided across intermediate portions of the side boxes 210.
  • the take-up shaft 220 is adapted to wind fabric therearound.
  • the friction mechanism 230 is U-shaped and comprises two arms 231 each having a first end 231aand an opposite second end 231b, said arms 231 being pivotably supported at the projection 211, wherein a friction rod 232 fixedly interconnects the second ends 231 b of the arms 231.
  • the friction rod 232 is disposed above the take-up shaft 220 to contact the fabric wound therearound.
  • the speed change mechanism 240 is provided at a lower portion of the fabric take-up device 200 between bottoms of the side boxes 210.
  • the speed change mechanism 240 comprises a driving shaft 241 extended therethrough. Both ends of the driving shaft 241 are extended into the side boxes 210.
  • the first transmission assembly 250 is provided in one side box 210 and comprises lower and upper wheels 251 and 252, and a belt 253 running around the wheels 251 and 252.
  • the lower wheel 251 is fixedly connected to one end of the driving shaft 241 and the upper wheel 252 is fixedly connected to one end of the take-up shaft 220.
  • the speed change mechanism 240 is adapted to activate for rotating the driving shaft 241 and the lower wheel 251.
  • the upper wheel 252 turns by running the belt 253.
  • the take-up shaft 220 rotates. It is obvious to those skilled in the art that tautness of fabric wound around the take-up shaft 220 can be adjusted by adjusting the rotating speed of the take-up shaft 220. Also, adjustment of the rotating speed of the take-up shaft 220 can be carried out by controlling the speed change mechanism 240 and which is known in the art. Accordingly, further description thereof is omitted for purposes of brevity and convenience.
  • the supply mechanism 290 is provided across upper portions of the side boxes 210 and comprises a drive shaft 291 and two driven shafts 292 and 293.
  • the second transmission assembly 260 and the third transmission assembly 270 are provided in the other side box 210.
  • the fourth transmission assembly 280 is provided in the arm 231 proximate the other side box 210.
  • the speed change mechanism 240 is adapted to transmit motive force to the friction rod 232 through the second transmission assembly 260. Also, the speed change mechanism 240 is adapted to transmit motive force to the drive shaft 291 and the driven shafts 292 and 293 through the second transmission assembly 260 and the third transmission assembly 270.
  • the second transmission assembly 260 comprises four wheels 261, 262, 263, and 264, and a belt 265 running around the wheels 263 and 264.
  • the wheel 261 is fixedly connected to the other end of the driving shaft 241.
  • the wheels 262 and 263 are adapted to co-rotate.
  • the wheel 262 is driven by the wheel 261.
  • the wheel 264 is provided in a position higher than the take-up shaft 220.
  • the third transmission assembly 270 comprises two wheels 271 and 272, and a belt 273 running around the wheels 271, 272, and 264.
  • the wheel 271 is fixedly connected to the first end 231a of the arm 231.
  • the wheel 272 is fixedly connected to the first end 231a of the drive shaft 291.
  • the fourth transmission assembly 280 comprises a seventh wheel 281 and an eighth wheel 282, and a belt 283 running around the seventh wheels 281 and the eighth wheel 282.
  • the seventh wheel 281 is fixedly connected to the first end 231a of the arm 231.
  • the eighth wheel 282 is fixedly connected to the second end 231b of the arm 231 joining the friction rod 232.
  • the fourth transmission assembly 280 can be driven as the third transmission assembly 270 drives.
  • the speed change mechanism 240 can drive the driving shaft 241 to move the second transmission assembly 260, the third transmission assembly 270, and the fourth transmission assembly 280.
  • the speed change mechanism 240 transmits motive force to the friction rod 232 through the second transmission assembly 260.
  • the speed change mechanism 240 transmits motive force to the drive shaft 291 through the second transmission assembly 260 and the third transmission assembly 270.
  • Either end of the drive shaft 291 is formed as a drive wheel 294
  • either end of the driven shaft 292 is formed as a driven wheel 295
  • either end of the driven shaft 293 is formed as a driven wheel 296 respectively.
  • the drive wheel 294 has two opposite points on its periphery to be in contact with the driven wheels 295 and 296.
  • the driven wheels 295 and 296 can be driven as the drive wheel 294 rotates.
  • the driven shafts 292 and 293 can be driven as the drive shaft 291 rotates.
  • the arms 231 are provided above the take-up shaft 220. Also, for each arm 231 the first end 231ais pivotably supported by the projection 211 and the take-up shaft 220 has an axis 221 fixedly interconnecting the second ends 231 b of the arms 231.
  • an angle of the friction rod 232 from its initial inoperative position in FIG. 5A to its maximum operating position in FIG . 5B is less than that of the prior art discussed in FIGS. 1A and 1B .
  • pressing force exerted by the friction rod 232 on fabric 20 being wound around the take-up shaft 220 is the same during the fabric take-up process. As a result, a fabric roll with uniform tautness is obtained.
  • a balancing weight mechanism is eliminated. Also, only one friction mechanism 230 is provided. Thus, the constituent components of the fabric take-up device 200 are simplified, resulting in a reduction in its manufacturing cost.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
  • Treatment Of Fiber Materials (AREA)

Claims (8)

  1. Un dispositif d'enroulement d'un tissu d'une machine à tricoter comprenant:
    un premier corps latéral (210) et un second corps latéral opposé (210), chacun comportant un mentonnet (211) prenant place au niveau de la partie supérieure latérale du corps latéral;
    un axe d'enroulement (220) passant à travers les parties intermédiaires des corps latéraux (210), l'axe d'enroulement (220) étant conçu pour que le tissu (20) puisse s'y enrouler;
    un mécanisme de frottement (230) doté de deux bras (231), chacun comportant une première extrémité (231a) et une seconde extrémité (231b), lesdits bras (231) étant soutenus de manière pivotante à ladite première extrémité (231a) dans laquelle une tige de frottement (232) relie les deux extrémités secondes (231 b), qui est disposé au-dessus de l'axe d'enroulement (220) pour maintenir le contact avec le tissu s'y enroulant;
    un mécanisme de changement de vitesse (240) pour la mise en rotation d'un axe d'enroulement (241) pour l'entraînement d'un groupe de transmission; et
    un mécanisme d'alimentation (290) disposé aux extrémités supérieures desdits corps latéraux (210) et comportant un axe d'entraînement (291) pour l'entraînement du tissu provenant de la machine à tricoter;
    caractérisé en ce que le groupe de transmission comporte un premier élément de transmission (250), un second élément de transmission (260), un troisième élément de transmission (270) et un quatrième élément de transmission (280), dans lesquels
    ledit premier élément de transmission (250) est situé au sein du premier corps latéral (210) et est entraîné par ledit mécanisme de changement de vitesse (240) pour la mise en rotation de l'axe d'enroulement (220),
    ledit second élément de transmission (260) est situé au sein du second corps latéral (210) et est entraîné par ledit mécanisme de changement de vitesse (240),
    ledit troisième élément de transmission (270) est disposé au sein dudit second corps latéral opposé (210) et est entraîné par ledit second élément de transmission (260) pour l'entraînement dudit axe d'entraînement (291) du mécanisme d'alimentation (290), et
    ledit quatrième élément de transmission (280) est disposé sur le bras (231) proche du second corps latéral (210) et entraîné par ledit troisième élément de transmission (270) pour l'entraînement de ladite tige de friction (232).
  2. Le dispositif de la revendication 1, dans lequel le mécanisme de changement de vitesse (240) est disposé entre des extrémités inférieures des corps latéraux (210).
  3. Le dispositif de la revendication 2, dans lequel ledit axe d'entraînement (241) traverse le mécanisme de changement de vitesse (240) et les deux extrémités dudit axe d'entraînement (241) s'étendent à l'intérieur desdits corps latéraux (210), dans lequel ledit premier élément de transmission (250) comporte une roue inférieure (251) fixée à une première extrémité de l'axe d'entraînement (241), une roue supérieure (252) fixée à une extrémité de l'axe d'enroulement (220), et une courroie (253) s'enroulant autour des roues inférieures et supérieures (251, 252).
  4. Le dispositif suivant l'une quelconque des revendications précédentes, dans lequel ledit mécanisme d'alimentation (290) est disposé aux extrémités supérieures desdits corps latéraux (210), le mécanisme d'alimentation (290) comprenant en outre un premier axe d'entraînement (292) et un second axe d'entraînement (293).
  5. Le dispositif de la revendication 4, dans lequel le second élément de transmission (260) comporte une première roue (261) fixée à une seconde extrémité de l'axe d'entraînement (241), une seconde roue (262) entraînée par ladite première roue (260), une troisième roue (263) adaptée pour une rotation conjointe avec la seconde roue (262), une quatrième roue (264) disposée dans une position supérieure par rapport à l'axe d'enroulement (220), et une courroie (265) passant autour des troisième et quatrième roues (263, 264).
  6. Le dispositif de la revendication 5, dans lequel le troisième élément de transmission (270) comporte une cinquième roue (271) fixée à la première extrémité de l'un desdits bras (231), une sixième roue (272) fixée à une première extrémité de l'axe d'entraînement (291), et une courroie (273) passant autour des cinquième, sixième et de la quatrième roue (271, 272, 264).
  7. Le dispositif de la revendication 4 au moins et de l'une quelconque des revendications précédentes, dans lequel chaque extrémité de l'axe d'entraînement (291) présente la forme d'une roue d'entraînement, chaque extrémité du premier axe d'entraînement (292) présente la forme d'une première roue entraînée, chaque extrémité du second axe d'entraînement présente la forme d'une seconde roue entraînée, respectivement, et la roue d'entraînement ayant deux points opposés sur sa périphérie pour un contact avec les première et seconde roue d'entraînement de telle manière que les première et seconde roue entraînées sont adaptées de manière à entraîner à mesure de la rotation de la roue d'entraînement, et les premier et second axes d'entraînement (292, 293) sont conçus pour entraîner à mesure de la rotation de l'axe d'entraînement.
  8. Le dispositif de la revendication 6, dans lequel le quatrième élément de transmission (280) comporte une septième roue (281) fixée à la première extrémité (231a) de l'un desdits bras (231), une huitième roue (282) fixée à ladite seconde extrémité (231 b) du bras (231) joignant la tige de friction (232) , et une courroie (283) passant autour des septième et huitième roues.
EP05104851A 2005-06-03 2005-06-03 Mécanisme d'enroulement d'un tricot haut sur jambes à haute vitesse avec dispositif pour établir une tension d'enroulement constante Not-in-force EP1731649B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES05104851T ES2382194T3 (es) 2005-06-03 2005-06-03 Dispositivo elevado de recogida de tejido a alta velocidad con mecanismo para mantener una tensión uniforme del tejido
AT05104851T ATE548491T1 (de) 2005-06-03 2005-06-03 Hochbauende hochgeschwindigkeitsgestrickabzugsvorrichtung mit einrichtung zum konstanthalten der spannung im gestrick
PL05104851T PL1731649T3 (pl) 2005-06-03 2005-06-03 Pionowe urządzenie odbierające materiał tekstylny o wysokiej wydajności z systemem zapewniającym równomierne naprężenie materiału tekstylnego
EP05104851A EP1731649B1 (fr) 2005-06-03 2005-06-03 Mécanisme d'enroulement d'un tricot haut sur jambes à haute vitesse avec dispositif pour établir une tension d'enroulement constante

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05104851A EP1731649B1 (fr) 2005-06-03 2005-06-03 Mécanisme d'enroulement d'un tricot haut sur jambes à haute vitesse avec dispositif pour établir une tension d'enroulement constante

Publications (2)

Publication Number Publication Date
EP1731649A1 EP1731649A1 (fr) 2006-12-13
EP1731649B1 true EP1731649B1 (fr) 2012-03-07

Family

ID=36570575

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05104851A Not-in-force EP1731649B1 (fr) 2005-06-03 2005-06-03 Mécanisme d'enroulement d'un tricot haut sur jambes à haute vitesse avec dispositif pour établir une tension d'enroulement constante

Country Status (4)

Country Link
EP (1) EP1731649B1 (fr)
AT (1) ATE548491T1 (fr)
ES (1) ES2382194T3 (fr)
PL (1) PL1731649T3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2312030A1 (fr) * 2009-10-15 2011-04-20 Pai Lung Machinery Mill Co., Ltd. Structure de collecte de tissus pour appareil de découpe de tissus
EP2314534B1 (fr) 2009-10-20 2013-04-10 Pai Lung Machinery Mill Co., Ltd. Procédé et appareil pour soutirer et plier un tissu à la même vitesse que le tissu est tricoté et déchargé par une machine à tricoter circulaire
CN107761241B (zh) * 2017-11-29 2023-05-26 百润(晋江)科技有限公司 一种圆机坯布牵拉装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06173146A (ja) 1992-10-09 1994-06-21 Fukuhara Seiki Seisakusho:Kk 丸編機における巻取部の駆動装置
DE9304846U1 (de) 1993-03-30 1993-06-24 SIPRA Patententwicklungs- und Beteiligungsgesellschaft mbH, 7470 Albstadt Abzugsvorrichtung
US6000246A (en) 1998-06-02 1999-12-14 Hsieh; Wen-Bin Stepless speed change type cloth take-up device for a circular knitting machine
US6637241B1 (en) 2003-01-21 2003-10-28 Pai Lung Machinery Mill Co., Ltd. Fabric take-up apparatus

Also Published As

Publication number Publication date
EP1731649A1 (fr) 2006-12-13
PL1731649T3 (pl) 2012-08-31
ATE548491T1 (de) 2012-03-15
ES2382194T3 (es) 2012-06-06

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