EP1867769A1 - Dispositif ensouple à dessin - Google Patents

Dispositif ensouple à dessin Download PDF

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Publication number
EP1867769A1
EP1867769A1 EP06012094A EP06012094A EP1867769A1 EP 1867769 A1 EP1867769 A1 EP 1867769A1 EP 06012094 A EP06012094 A EP 06012094A EP 06012094 A EP06012094 A EP 06012094A EP 1867769 A1 EP1867769 A1 EP 1867769A1
Authority
EP
European Patent Office
Prior art keywords
pattern
rendering
pattern tree
thread
yarn
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.)
Granted
Application number
EP06012094A
Other languages
German (de)
English (en)
Other versions
EP1867769B1 (fr
Inventor
Joachim Fischer
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.)
Karl Mayer Textilmaschinenfabrik GmbH
Original Assignee
Karl Mayer Textilmaschinenfabrik GmbH
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 Karl Mayer Textilmaschinenfabrik GmbH filed Critical Karl Mayer Textilmaschinenfabrik GmbH
Priority to ES06012094T priority Critical patent/ES2318617T3/es
Priority to DE200650002580 priority patent/DE502006002580D1/de
Priority to EP20060012094 priority patent/EP1867769B1/fr
Priority to JP2006287637A priority patent/JP2007332525A/ja
Publication of EP1867769A1 publication Critical patent/EP1867769A1/fr
Application granted granted Critical
Publication of EP1867769B1 publication Critical patent/EP1867769B1/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
    • D04B27/00—Details of, or auxiliary devices incorporated in, warp knitting machines, restricted to machines of this kind
    • D04B27/10—Devices for supplying, feeding, or guiding threads to needles
    • D04B27/16—Warp beams; Bearings therefor
    • D04B27/20—Warp beam driving devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/38—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
    • B65H59/384—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension using electronic means
    • B65H59/387—Regulating unwinding speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the invention relates to a pattern tree arrangement for a knitting machine with at least one pattern tree, which is rotatably mounted in a frame and on which at least one pattern thread is wound, which is guided by a thread take-off arrangement.
  • pattern trees are subtracted from so-called pattern trees and fed to the knitting machine.
  • Several pattern trees are stored in a frame, with each pattern tree usually provides a pattern laying with threads.
  • the threads are Depending on the course of the pattern, they are integrated into a product base and thus create a pattern in the knitted fabric.
  • the thread consumption of a thread drawn from a pattern tree is very different, which also causes different peripheral speeds of the pattern tree. This peripheral speed can vary constantly.
  • the peripheral speeds of different pattern trees in the pattern tree arrangement may also be greatly different.
  • the pattern tree is provided at its two outer shaft ends with roller bearings and stored on bearings.
  • On one of the two shaft ends is a brake disc.
  • the pattern tree is braked.
  • this is necessary in order to generate a thread tension necessary for the knitting process.
  • an uncontrolled twisting of the pattern tree is avoided.
  • the adjustment of the brake is relatively complicated.
  • the brake must not brake too hard in order to avoid an excessive increase in the thread tension when accelerating the pattern tree.
  • the brake must nevertheless apply a certain braking effect so that the pattern tree does not uncontrollably rotate when the thread take-off is ended or reduced. In this case, the thread tension would decrease greatly.
  • the invention has for its object to keep the thread tension on a pattern tree even with a high-speed knitting machine within predetermined limits.
  • This object is achieved in a pattern tree arrangement of the type mentioned above in that the pattern tree has a slip drive.
  • a driving element which may for example be driven by a motor, communicates with the pattern tree in such a way that a relative movement between the pattern tree and the driving element is possible.
  • the driving element continuously applies a driving force to the pattern tree which sets it in rotation when no other forces act on the pattern tree.
  • the slip drive drives the pattern tree even so that without other external forces, the scope of the pattern tree has the speed that must be achieved with the largest thread consumption.
  • a slip drive can work both contactless, for example by means of a magnetic coupling, as well as by a frictional engagement.
  • the slip drive on a moving element which acts with a frictional engagement on the pattern tree.
  • the pattern tree is rotated by the frictional engagement.
  • braking forces act on the pattern tree then the pattern tree rotates more slowly than the moving element is moved, so that there is a relative movement between the pattern tree and the moving element.
  • the moving element acts on the circumference of the pattern tree. This is a sufficient lever arm available with which the moving element can transmit torque to the pattern tree.
  • the drive through the moving element is well utilized.
  • the moving element forms a circulation.
  • a circulation for example, a circumferential loop, can rotate permanently, so that it can be driven in turn by a rotary drive, for example.
  • the moving element is designed as a brush belt.
  • the brush belt is preferably positioned so that the circumference of the pattern tree or connected to the pattern tree drive pulley presses with its circumference with a portion each in the bristles.
  • the bristles sweep along the surface of the pattern tree circumference and rotate it forward.
  • a plurality of pattern trees are provided and the moving element acts on a plurality of pattern trees. Since the slip drive only specifies a maximum drive speed for the pattern trees, but otherwise the pattern trees can be individually controlled in their peripheral speed, one can drive several pattern trees with a single moving element. This allows a relatively simple constructed pattern tree arrangement with comparatively few drives.
  • a plurality of pattern trees are arranged in a plane and the moving element is guided substantially rectilinearly over the pattern trees arranged in the plane.
  • the pattern trees may all be guided along a run of the movable member so that the moving member drives all of the pattern trees in that plane.
  • pattern trees can be arranged in several, in particular parallel planes, wherein in each plane a moving element is arranged and the moving elements have a common drive. This can for example be realized so that each moving element has its own drive wheel and all drive wheels are driven together by a drive.
  • pattern trees are arranged in several, in particular parallel planes, the moving element drives pattern trees in several levels. If the moving element is guided as a loop, then this loop is passed through several levels.
  • the pattern tree preferably has a controllable braking device.
  • the control of the peripheral speed of the pattern tree in two directions is possible.
  • the pattern tree can be driven by the slip drive, so be brought to a higher speed when a high thread consumption is present.
  • the pattern tree can also be selectively braked by the controllable braking device when the thread consumption is lower.
  • the slip drive and the braking device the peripheral speed of the pattern tree can be very specifically adapted to the thread consumption.
  • the thread withdrawal arrangement preferably has a thread store. Since the model tree also has a certain inertia with slip drive and braking device, the thread store is able to absorb or release short-term required amounts of additional thread, so that the thread train or the thread tension can be made uniform at the site of action.
  • the thread store preferably has switching means for actuating the braking device.
  • the slip drive acts permanently on the pattern tree and drives it. Accordingly, a control of the slip drive is not required.
  • the braking device can act much faster on the pattern tree, so that it is advantageous to use the thread storage as a criterion for whether the pattern tree should be braked or not.
  • the switching means comprise a first sensor, which indicates a filled state of the thread store, and a second sensor, which indicates a deflated state of the thread store, wherein the first sensor triggers an activation of the braking device and the second sensor the activation of the braking device terminated.
  • the first sensor triggers an activation of the braking device and the second sensor the activation of the braking device terminated.
  • the braking device can decelerate or even stop the pattern tree. If, however, the thread store is emptied, then the slip drive should be able to drive the pattern tree readily, so that the braking device is released.
  • the slip drive has a certain amount of time available to bring the pattern tree to a certain speed
  • the braking device has a certain amount of time to decelerate the pattern tree.
  • the sensors are designed as non-contact sensors. This keeps the wear and the susceptibility to errors low.
  • the thread store on a weight-loaded and vertically movable thread guide.
  • the weight then pulls the thread guide down in the direction of gravity.
  • a string pulls the thread guide upwards against the weight if the pattern tree does not supply an adequate amount of thread.
  • the pattern tree arrangement 1 shows a pattern tree arrangement 1 with a plurality of pattern trees 2, each of which carries a plurality of thread windings 3.
  • the number of filament winding 3 on Each pattern tree 2 corresponds to the number of repeats in a knitted fabric, which is produced on a knitting machine, not shown, in particular a warp knitting machine.
  • the number of pattern trees 2, however, corresponds to the number of pattern bars used.
  • the pattern threads of a pattern tree are usually supplied to a separate, not shown pattern laying bar in the knitting machine.
  • pattern tree arrangement 1 Based on Fig. 2, a single pattern tree 2 will now be explained in more detail.
  • the remaining pattern trees 2 are stored according to the pattern tree arrangement 1 and controlled with respect to their rotational or peripheral speed.
  • Each pattern tree 2 is rotatably supported at its axial ends via roller bearings 4, which are fixed in a frame, not shown.
  • a slip drive 5 is arranged, which in the present embodiment has a guided as a circumferential loop 6 brush belt 7, which acts on a peripheral portion 8 of the pattern tree 2.
  • the pattern tree 2 and the brush belt 7 are positioned to each other so that the circumference of the pattern tree 2 is slightly immersed in the bristles 9 of the brush belt 7.
  • the brush belt 7 is moved in the direction of an arrow 10, then rub the bristles 9 over the peripheral portion 8 of the pattern tree 2, thereby driving the pattern tree 2 in the direction of the arrow 10 directed parallel to the arrow 11 at.
  • the pattern tree 2 is thus driven by friction of the brush belt 7.
  • the pattern tree 2 is braked by other forces, then slide the bristles 9 of the brush belt 7 over the peripheral portion 8 of the pattern tree 2, without that the pattern tree 2 rotates at a peripheral speed of the brush belt 7 corresponding peripheral speed.
  • the pattern tree 2 can rotate slower or even stand still.
  • the slip drive 5 is thus responsible for the rotational drive of the pattern tree. 2
  • a braking device 12 is provided, which can be activated to decelerate the pattern tree 2, or can be deactivated to allow a drive through the brush belt 7.
  • the braking device 12 has a brake shoe 13, which may be formed in the present embodiment as a rubber stopper.
  • the brake shoe 13 is pressed by an actuator 14 against the circumference of the pattern tree 2 or removed from the periphery.
  • the actuator 14 may be formed, for example, as a pneumatic cylinder, as a hydraulic cylinder or as an electromagnetic actuator. In any case, the actuator 14 may be very simple, because he basically just two positions, namely activated brake or deactivated brake must take.
  • a pattern thread 15 is withdrawn from each roll 3.
  • the pattern thread 15 is passed through a yarn store 16, which will be explained in more detail in connection with FIG.
  • the yarn store 16 has an inlet-side rod 17 and an outlet-side rod 18, over which the pattern thread 15 is guided. Between the two rods 17, 18 of the thread is loaded by a weight 19 which is suspended on an eyelet 20, through which the pattern thread 15 is guided. The weight 19 pulls the pattern thread 15 between the two rods 17, 18 in the direction of gravity down.
  • the yarn store 16 thus has a capacity which corresponds approximately to twice the travel path of the weight 19. In a manner not shown, the weight is guided vertically, so that the pattern thread 15 is always guided vertically.
  • the weight 19 simultaneously acts as a transmitter for a first sensor 21 and a second sensor 22.
  • the first sensor 21 is arranged in the vicinity of the lower end of the yarn store 16. Thus, if the weight 19 comes close to the first sensor 21, then this is an indication that the thread store 16 is filled and further replenishment of the pattern thread 15 is not required.
  • the first sensor 21 (or an associated, not shown control) triggers the braking device 12, so that the pattern tree 2 is stopped or its rotational speed is reduced.
  • the weight 19 is pulled upwards and then comes close to the second sensor 22.
  • the weight 19 comes close to the second sensor 22, this is an indication that the thread store 16 is practically emptied. In this case, the pattern thread 15 must be redelivered again from the winding 3.
  • the braking device 12 is deactivated and the slip drive 5 drives the pattern tree 2 until the weight 19 is in the range of the first sensor 21.
  • the two sensors 21, 22 are designed as non-contact sensors, for example as magnetic sensors.
  • the pattern trees 2 are arranged in different planes, in the present exemplary embodiment in six planes, wherein each plane in turn accommodates six pattern trees 2.
  • the pattern trees 2 a plane are driven by a common brush belt 7.
  • Each brush belt 7 passes over two pulleys 23, 24. It also takes place between the pulleys 23, 24 on the one hand and the brush belt 7 on the other hand, a frictional engagement. It is also possible to provide the brush belt 7 on its inside with a tooth profile, so that at least between the guide roller 23 and the brush belt 7, a mold engagement can be made.
  • a drive belt 26 is guided over drive wheels 25 and guided between pulleys of adjacent planes via tension rollers 27.
  • the drive belt 26 is driven by a drive motor 28. All brush belts 7 are thus driven by the same drive 28, so that one can easily ensure that all brush belts 7 have the same peripheral speeds.
  • Each pattern tree 2 thus has an individually controllable brake and a common with other pattern trees 2 slip drive.
  • the slip drive 5 is designed so that it can drive each pattern tree 2 with the maximum required take-off speed of the pattern threads 15. This prevents that at maximum thread consumption unduly high voltages in the pattern threads 15 arise.
  • By decelerating a pattern tree by means of the braking device 12 prevents the respective pattern tree 2 continues to rotate, even if no pattern thread 15 is consumed more. This prevents the tension in the pattern threads from dropping below a permissible value.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
EP20060012094 2006-06-13 2006-06-13 Dispositif ensouple à dessin Not-in-force EP1867769B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES06012094T ES2318617T3 (es) 2006-06-13 2006-06-13 Dispositivo de arbol de muestras.
DE200650002580 DE502006002580D1 (de) 2006-06-13 2006-06-13 Musterbaumanordnung
EP20060012094 EP1867769B1 (fr) 2006-06-13 2006-06-13 Dispositif ensouple à dessin
JP2006287637A JP2007332525A (ja) 2006-06-13 2006-10-23 柄ビーム装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20060012094 EP1867769B1 (fr) 2006-06-13 2006-06-13 Dispositif ensouple à dessin

Publications (2)

Publication Number Publication Date
EP1867769A1 true EP1867769A1 (fr) 2007-12-19
EP1867769B1 EP1867769B1 (fr) 2009-01-07

Family

ID=37000030

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20060012094 Not-in-force EP1867769B1 (fr) 2006-06-13 2006-06-13 Dispositif ensouple à dessin

Country Status (4)

Country Link
EP (1) EP1867769B1 (fr)
JP (1) JP2007332525A (fr)
DE (1) DE502006002580D1 (fr)
ES (1) ES2318617T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102587011A (zh) * 2012-02-28 2012-07-18 天津工业大学 碳纤维多层角联织机送经经轴架
CN109476167A (zh) * 2016-07-15 2019-03-15 Nec平台株式会社 卷纸打印机
CN112981696A (zh) * 2019-12-17 2021-06-18 卡尔迈耶斯托尔研发有限公司 经轴组件

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202010014519U1 (de) 2010-10-20 2010-12-23 Karl Mayer Textilmaschinenfabrik Gmbh Musterbaumanordnung und Kettenwirkmaschine
CN102409481A (zh) * 2011-09-14 2012-04-11 吴江市隆泰喷织厂 经编机用经轴安装机构

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB733772A (en) * 1950-10-10 1955-07-20 Rolf Runknagel Improvements in warp machines
GB907342A (en) * 1960-05-09 1962-10-03 Tullmaschb Karl Marx Stadt Veb Improvements in or relating to warp feed devices in multineedle sewing or warp knitting machines
GB1090865A (en) * 1966-03-02 1967-11-15 Vnii Textilnogo I Legkogo Mash Apparatus for winding yarn or thread
US3508722A (en) * 1966-11-19 1970-04-28 Karl Kohl Creel for a direct warping machine
US4736602A (en) * 1985-07-03 1988-04-12 Liba Maschinenfabrik Gmbh Warp knitting machine
JPH0797752A (ja) * 1993-09-29 1995-04-11 Sakae Lace Kk ラッシェル編機

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB733772A (en) * 1950-10-10 1955-07-20 Rolf Runknagel Improvements in warp machines
GB907342A (en) * 1960-05-09 1962-10-03 Tullmaschb Karl Marx Stadt Veb Improvements in or relating to warp feed devices in multineedle sewing or warp knitting machines
GB1090865A (en) * 1966-03-02 1967-11-15 Vnii Textilnogo I Legkogo Mash Apparatus for winding yarn or thread
US3508722A (en) * 1966-11-19 1970-04-28 Karl Kohl Creel for a direct warping machine
US4736602A (en) * 1985-07-03 1988-04-12 Liba Maschinenfabrik Gmbh Warp knitting machine
JPH0797752A (ja) * 1993-09-29 1995-04-11 Sakae Lace Kk ラッシェル編機

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 07 31 August 1995 (1995-08-31) *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102587011A (zh) * 2012-02-28 2012-07-18 天津工业大学 碳纤维多层角联织机送经经轴架
CN109476167A (zh) * 2016-07-15 2019-03-15 Nec平台株式会社 卷纸打印机
US10960691B2 (en) 2016-07-15 2021-03-30 Nec Platforms, Ltd. Roll paper printer
CN112981696A (zh) * 2019-12-17 2021-06-18 卡尔迈耶斯托尔研发有限公司 经轴组件
CN112981696B (zh) * 2019-12-17 2023-10-20 卡尔迈耶斯托尔研发有限公司 经轴组件

Also Published As

Publication number Publication date
ES2318617T3 (es) 2009-05-01
JP2007332525A (ja) 2007-12-27
DE502006002580D1 (de) 2009-02-26
EP1867769B1 (fr) 2009-01-07

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