WO2017077546A1 - Dispositif de serrage sous enroulement et son procédé de serrage de fil - Google Patents

Dispositif de serrage sous enroulement et son procédé de serrage de fil Download PDF

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Publication number
WO2017077546A1
WO2017077546A1 PCT/IN2016/000260 IN2016000260W WO2017077546A1 WO 2017077546 A1 WO2017077546 A1 WO 2017077546A1 IN 2016000260 W IN2016000260 W IN 2016000260W WO 2017077546 A1 WO2017077546 A1 WO 2017077546A1
Authority
WO
WIPO (PCT)
Prior art keywords
clamping
spring
balls
clamping element
force
Prior art date
Application number
PCT/IN2016/000260
Other languages
English (en)
Inventor
.A. Mahajan Manojkumar
.S. Domadiya Bhavesh
Original Assignee
A.T.E. Enterprises Pvt. 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 A.T.E. Enterprises Pvt. Ltd. filed Critical A.T.E. Enterprises Pvt. Ltd.
Priority to DE112016001093.1T priority Critical patent/DE112016001093T5/de
Priority to CN201680004675.0A priority patent/CN108138385B/zh
Publication of WO2017077546A1 publication Critical patent/WO2017077546A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/04—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member
    • B26D1/045—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member for thin material, e.g. for sheets, strips or the like
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H7/00—Spinning or twisting arrangements
    • D01H7/02—Spinning or twisting arrangements for imparting permanent twist
    • D01H7/04—Spindles
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H9/00—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine
    • D01H9/02—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine for removing completed take-up packages and replacing by bobbins, cores, or receptacles at take-up stations; Transferring material between adjacent full and empty take-up elements
    • D01H9/16—Yarn-severing arrangements, e.g. for cutting transfer tails; Separating of roving in flyer

Definitions

  • the present invention relates to a clamping device for ring spinning machine, more particularly a clamping device arrangement of axially displaceable clamping elements for clamping the yarn.
  • the invention also relates to the process of clamping the yarn using the clamping device.
  • the disadvantage of the conventional or other clamping device is that sometimes the yarn is not clamped or there is a slippage of yarn and then the winding of yarn on the new bobbin will not restart automatically, resulting in loss of production and time, until the operator reconnects yarn manually to the spindle.
  • the spindle may run without yarn till the operator attends and reconnects the yarn manually. During this period the loss of yarn production on that particular spindle, and the loss of cotton roving delivered as the same will be carried into waste box by suction system. Thus resulting in lot of wastage during the production of the yarns.
  • the yarn produced by the ring spinning machine is very thin, it is necessary to have accurate contact of clamping surfaces.
  • the clamping device comprises of stationary or fixed parts and moving parts and the limitation of manufacturing processes makes it difficult to achieve the proper contact of the clamping surfaces.
  • the present invention relates to a clamping device for ring-spinning machine to improve the reliability of clamping the yarn during the doffing cycle.
  • the clamping device is arranged in a manner so that it has movable clamping elements on opposite-direction and are supported by means of springs, in such a manner that both the clamping elements have flexibility to align and axially displace with respect to the other.
  • the said clamping element comprises of balls that are positioned on the radial track such that when the spindle approaches the opening speed, the centrifugal force of the balls exceeds the force due to spring, allowing the balls to move radially outwards, thus the clamping elements separates.
  • One aspect of the present invention relates to a clamping device for doffing in a ring spinning machine comprising, an inner piece (1), a cutter (3) fixed on top of the inner piece (1), upper clamping element (8) axially slidable on the inner piece and, said upper clamping element (8) is pressed towards the lower clamping element (6) by first spring (5), said first spring (5) is located between the cutter (3) and the upper clamping element (8), lower clamping element (6) axially slidable on the inner piece and is pressed towards the upper clamping element (8) by second spring (7), said second spring (7) is located between the lower clamping element (6) and spring cup (4), balls (9) positioned on the radial track of the clamping elements (8,6), Characterized in that the clamping elements (8,6) are movable in opposite directions to one another, wherein atleast one loading springs (5,7) and at least one load relieving balls (9) acts in opposite direction to the direction of the spring force, whereby the load-relieving balls
  • a process of clamping an yarn in a ring spinning machine comprising, clamping elements (8,6) that are axially movable in opposite directions to one another, loading springs (5,7) for closing the clamping element by means of a loading force, load relieving balls (9) that are positioned on the radial tracks for generating a relieving force that acts in opposite direction to the direction of the spring force, whereby the load-relieving balls moves in the radial tracks of the clamping device under centrifugal force when the spindle is rotating and whereby the clamping elements can be opened by means of load relieving force.
  • a clamping device for doffing in a ring spinning machine.
  • the clamping device may comprise an inner piece (1).
  • the inner piece (1) may further comprise a cutter (3) fixed on the inner piece (1).
  • the clamping arrangement may further comprise at least two clamping element (8, 9).
  • the at least two clamping element (8, 9) may be configured to slide axially in direction opposite to each other on the inner piece (1).
  • at least two loading springs (5, 7) may be positioned in the cutter (3) and a spring cup (4), and may be configured to press the at least two clamping elements towards each other by way of spring force.
  • the clamping arrangement may further comprise a plurality of balls (9) positioned on a radial track embedded on the at least two clamping element (8, 9), characterized wherein at least one load relieving balls from the plurality of balls (9) act in opposite direction to the direction of the spring force of at least one loading spring (5, 7) the load-relieving balls moves under centrifugal force creating a clamping gap (11).
  • Fig. 1 shows the section view of the arrangement of the clamping device (A), that is when the clamping gap (1 1) is in the open position.
  • Fig. 2 shows the section view of the arrangement of the clamping device (A), that is when the clamping gap is in the closed position.
  • Fig. 1 shows the section view of the arrangement of the clamping device (A), that is when the clamping gap (11) is in the open position.
  • the clamping device has inner piece (1) on which the cutter (3) is fixed at the top.
  • the upper clamping element (8) can slide axially on the inner piece (1), and is pressed towards the lower clamping element (6) by the first spring (5) located between the cutter (3) and the upper clamping element (8).
  • the lower clamping element (6) can also slide axially on the inner piece (1), and is pressed towards the upper clamping element (8) by second spring (7) located between the lower clamping element (6) and the spring cup (4).
  • Both the clamping elements (8, 6) respectively have radial tracks for the balls (9).
  • the arrangement of the tracks are such that when the spindle speed increases the balls (9) tends to move radially outwards in the tracks due to centrifugal forces. That is when the spindle approaches the opening speed of clamping device the centrifugal force of the balls exceeds the force due to springs (5, 7) respectively, allowing the balls (9) to move radially outwards thus creating a clamping gap (l l).
  • the clamping elements (8, 6) are separated creating a clamping gap (11) as the balls (9) slides outwards.
  • the clamping gap (1 1) thus created is in a ready position to clamp the yarn being delivered to the bobbin.
  • Fig. 2 shows the section view of the arrangement of the clamping device (A), that is when the clamping gap is in the closed position.
  • the clamping device has inner piece (1) on which the cutter (3) is fixed at the top.
  • the upper clamping element (8) can slide axially on the inner piece (1), and is pressed towards the lower clamping element (6) by the first spring (5) located between the cutter (3) and the upper clamping element (8).
  • the lower clamping element (6) can also slide axially on the inner piece (1), and is pressed towards the upper clamping element (8) by second spring (7) located between the lower clamping element (6) and the spring cup (4).
  • Both the clamping members (8, 6) respectively have radial tracks for the balls (9).
  • the arrangement of the tracks are such that when the spindle speed decreases below certain level, the balls (9) tends to move radially inwards in the tracks due to force of springs (5,7) respectively.
  • the centrifugal forces reduces and the balls (9) are moved radially inwards due to the spring force. That is when the force due to the springs (5, 7) exceeds the centrifugal force of the balls, allowing the ball (9) to move radially inwards.
  • the clamping gap (11) is closed as the balls (9) slides inwards.
  • the clamping gap (1 1) thus closed enables the clamping device (A) to clamp the yarn being delivered to bobbin. That is during the doffing cycle, when the winding on the bobbin is done and just before the spindle stops, the yarn is delivered by the machine into the clamping gap (11) between clamping elements (8,6).
  • the clamping elements (8,6) are arranged such that they are movable in opposite directions to one another, wherein atleast one loading springs (5,7) and at least one load relieving balls (9) acts in opposite direction to the direction of the spring force, whereby the load-relieving balls is movable under centrifugal force when the spindle is rotating.
  • the process of clamping an yarn in a ring spinning machine comprises of axially movable clamping elements (8,6) in opposite direction to one another, loading springs (5,7) for closing the clamping element by means of a loading force, load relieving balls (9) that are positioned on the radial track for generating a relieving force that acts in opposite direction to the direction of the spring force, whereby the load-relieving balls moves in the radial tracks of the clamping device under centrifugal force when the spindle is rotating and whereby the clamping elements can be opened by means of load relieving force.
  • the present invention works on the principle that when the spindle speed increases beyond certain level, the balls (9) tends to move radially outwards in the tracks due to centrifugal forces of the balls.
  • the centrifugal force of the balls exceeds the force due to spring (5,7), allowing the balls (9) to move radially outwards.
  • the clamping elements (8, 6) are separated as the balls (9) slides outwards.
  • the spindle speed reduces below the closing speed of the clamping device the balls (9) are moved radially inwards due to the spring force (5, 7).
  • the spring cup (4) is supported by the helical compression spring (10) resting on the base ring (2).
  • the compression spring (10) facilitates further downward movement of the lower clamping element (6) manually for cleaning, required if there is any yarn accumulation.
  • the problem addressed by the present invention is to increase the reliability of operation and to save time required for cleaning the clamping device. Therefore it is necessary to develop a method for assembling a clamping device (A) such that no yarn accumulation occurs as disclosed by the present invention.
  • the clamping device (A) Since in the present invention the clamping device (A) is rotating the yarn is moved out with centrifugal forces. The resistance to the yarn movement is minimal with flat annular contact clamping elements. However it is difficult to achieve adequate clamping forces on the complete annular contact of clamping elements considering the requirements of manufacturing tolerances and tolerances required for moving parts.
  • the object of the present invention is to propose a method of assembling a clamping device (A) wherein both the clamping elements (8,6) are suspended on springs (5,7) so that the clamping elements (8,6) can align such that they can ensure complete contact of each other.
  • the spring elements (5,7) is arranged such that equally distribution of load is applied at multiple points on the clamping elements (6, 8).
  • the clamping device also comprises a helical compression spring (10) that rests on a base ring (2) of the claiming device.
  • the technical and commercial advantages of the present invention are to increase production efficiency in mills by reduction in production losses, such as wastage of yarns. This can be achieved by the assembly of the clamping device (A) as proposed in the present invention.
  • Further Ring frame has large number of spindles approx. 1200 or more.
  • the machine For cleaning the residual yarn the machine has to stop and can be restarted only after cleaning of all devices is completed which needs a long time. This in-turn reduces the productive time of the machine. Saving of this time will help in increasing the production efficiency of the machine. This can be achieved by the assembly of the clamping device (A) as proposed in the present invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Abstract

La présente invention concerne un dispositif de serrage pour métier à filer à anneaux, et un procédé pour améliorer la fiabilité de serrage du fil pendant le cycle de changement de cannettes. Le dispositif de serrage comprend une partie interne, un élément de coupe fixé sur le dessus de la pièce interne, un élément de serrage supérieur et un élément de serrage inférieur pouvant coulisser axialement dans une direction opposée l'un par rapport à l'autre, le premier ressort étant situé entre l'élément de coupe et le dispositif de serrage supérieur et le second ressort étant situé entre l'élément de serrage inférieur et la cuvette de ressort, des billes positionnées sur la voie radiale des éléments de serrage de telle sorte que, lorsque les éléments de serrage sont mobiles dans une direction opposée l'un par rapport à l'autre, au moins un ressort de chargement (5, 7) et au moins une bille d'atténuation de charge (9) agissent dans une direction opposée à la direction de la force de ressort, les billes d'atténuation de charge étant mobiles sous l'effet d'une force centrifuge lorsque la broche tourne.
PCT/IN2016/000260 2015-11-06 2016-10-26 Dispositif de serrage sous enroulement et son procédé de serrage de fil WO2017077546A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE112016001093.1T DE112016001093T5 (de) 2015-11-06 2016-10-26 Klemmvorrichtung für einen Spulenwechsel und Verfahren zum Klemmen eines Garns beim Spulenwechsel
CN201680004675.0A CN108138385B (zh) 2015-11-06 2016-10-26 卷绕中的夹紧装置及其夹紧纱线的方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN4225MU2015 2015-11-06
IN4225/MUM/2015 2015-11-06

Publications (1)

Publication Number Publication Date
WO2017077546A1 true WO2017077546A1 (fr) 2017-05-11

Family

ID=58661709

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2016/000260 WO2017077546A1 (fr) 2015-11-06 2016-10-26 Dispositif de serrage sous enroulement et son procédé de serrage de fil

Country Status (3)

Country Link
CN (1) CN108138385B (fr)
DE (1) DE112016001093T5 (fr)
WO (1) WO2017077546A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI760148B (zh) * 2020-07-23 2022-04-01 日商Ｙｋｋ股份有限公司 線狀體尾線保持夾具

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110079954A (zh) * 2019-05-16 2019-08-02 诸暨市斯博申机电设备设计有限公司 一种纱线表面清洁处理装置
CN112047189B (zh) * 2020-08-29 2022-06-24 河南交通职业技术学院 旋转式玄武岩纤维自动切割机

Citations (4)

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US3854356A (en) * 1973-07-17 1974-12-17 Amf Inc Thread cutting and clamping means
US6289662B1 (en) * 1999-02-05 2001-09-18 Zinser Textilmaschinen Gmbh Method of and apparatus for clamping the underwinding thread of a spinning spindle
WO2007131562A1 (fr) * 2006-05-13 2007-11-22 Oerlikon Accotex Texparts Gmbh Dispositif de serrage
CN202297933U (zh) * 2011-09-29 2012-07-04 东飞马佐里纺机有限公司 能自动箝持尾纱的锭子

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DE19628826A1 (de) * 1996-07-17 1998-01-22 Lieser Gmbh Beteiligungsgesell Klemmvorrichtung für Fäden
DE10346096B4 (de) * 2003-10-04 2005-08-11 Saurer Gmbh & Co. Kg Vorrichtung zum Aufwickeln einer Fadenreserve und einer Kreuzspule auf eine Spulenhülse
DE102005061043A1 (de) * 2005-12-08 2007-06-14 König, Günter Fadenklemmvorrichtung für Unterwindefäden an Spindeln einer Ringspinn- oder Ringzwirnmaschine
DE102008058655B4 (de) * 2008-11-22 2019-01-10 Saurer Spinning Solutions Gmbh & Co. Kg Klemmvorrichtung
DE102009023644A1 (de) * 2009-05-25 2010-12-02 Wilhelm Stahlecker Gmbh Fadenklemmeinrichtung für eine Spindel einer Spinn- oder Zwirnmaschine
DE102013020470A1 (de) * 2013-12-03 2015-06-03 Saurer Components Gmbh Klemmvorrichtung zum Klemmen eines Fadens an einer Spindel einer Spinn- oder Zwirnmaschine und Spinn- oder Zwirnmaschine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3854356A (en) * 1973-07-17 1974-12-17 Amf Inc Thread cutting and clamping means
US6289662B1 (en) * 1999-02-05 2001-09-18 Zinser Textilmaschinen Gmbh Method of and apparatus for clamping the underwinding thread of a spinning spindle
WO2007131562A1 (fr) * 2006-05-13 2007-11-22 Oerlikon Accotex Texparts Gmbh Dispositif de serrage
CN202297933U (zh) * 2011-09-29 2012-07-04 东飞马佐里纺机有限公司 能自动箝持尾纱的锭子

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI760148B (zh) * 2020-07-23 2022-04-01 日商Ｙｋｋ股份有限公司 線狀體尾線保持夾具

Also Published As

Publication number Publication date
DE112016001093T5 (de) 2018-01-04
CN108138385B (zh) 2020-12-04
CN108138385A (zh) 2018-06-08

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