EP1268897A1 - A bobbin cover plate used in twister - Google Patents

A bobbin cover plate used in twister

Info

Publication number
EP1268897A1
EP1268897A1 EP01922076A EP01922076A EP1268897A1 EP 1268897 A1 EP1268897 A1 EP 1268897A1 EP 01922076 A EP01922076 A EP 01922076A EP 01922076 A EP01922076 A EP 01922076A EP 1268897 A1 EP1268897 A1 EP 1268897A1
Authority
EP
European Patent Office
Prior art keywords
yarn
cover plate
bobbin
twister
bobbin cover
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
EP01922076A
Other languages
German (de)
French (fr)
Other versions
EP1268897B1 (en
EP1268897A4 (en
Inventor
Han Yong Park
Dong Pyo 502-1207 Samjubonghwang-town WOO
Jong Chul Shin
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.)
Kolon Industries Inc
Original Assignee
Kolon Industries Inc
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 Kolon Industries Inc filed Critical Kolon Industries Inc
Publication of EP1268897A1 publication Critical patent/EP1268897A1/en
Publication of EP1268897A4 publication Critical patent/EP1268897A4/en
Application granted granted Critical
Publication of EP1268897B1 publication Critical patent/EP1268897B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • D01H7/16—Arrangements for coupling bobbins or like to spindles
    • 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
    • D01H7/86—Multiple-twist arrangements, e.g. two-for-one twisting devices ; Threading of yarn; Devices in hollow spindles for imparting false twist
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/14—Details
    • D01H1/16—Framework; Casings; Coverings ; Removal of heat; Means for generating overpressure of air against infiltration of dust; Ducts for electric cables
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/04—Guides for slivers, rovings, or yarns; Smoothing dies
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/26—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre with characteristics dependent on the amount or direction of twist
    • D02G3/28—Doubled, plied, or cabled threads
    • D02G3/285—Doubled, plied, or cabled threads one yarn running over the feeding spool of another yarn

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Replacement Of Web Rolls (AREA)
  • Packaging Of Machine Parts And Wound Products (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
  • Guides For Winding Or Rewinding, Or Guides For Filamentary Materials (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Harvester Elements (AREA)

Abstract

The present invention is related to a circular shaped bobbin cover plate used in twister characterized in that: a yarn guide groove (1a) which guides the yarn in yarn feeding bobbin (B) to upper direction of the bobbin cover plate (1) is installed in the center part of the circular plate, a yarn guide supporter (1b) having punched yarn guide (1c) which feed the yarn in the center of guide roller (2) is installed in lower part of the circular plate which is located at right front position of guide roller (2) during operation, and a fixed part (1d) which can fix the bobbin cover plate (1) to the body of guide roller (2) is installed in upper side of the circular plate. The said bobbin cover plate (1) is installed at the right upper part of yarn feeding bobbin (B) standing upright, improves the ratio of full drum by preventing chewing phenomenon and other problems caused by the unwinding inferiority of said bobbin (B).

Description

A BOBBIN COVER PLATE USED IN TWISTER
TECHNICAL FIELD
The present invention is related to a bobbin cover plate used in
twister. More particularly, the present invention is related to a bobbin
cover plate used in twister, wherein twisting 2 strings of polyester yarns
together used for rubber reinforcing tire cord, for solving several problems
caused by unwinding inferiority of yarn feeding bobbin(B) and improving
ratio of full drum.
BACKGROUND ART
The tire cord for rubber reinforcement is weaved with 2 strings of
equally twisted yarn of high modules low shrinkage polyester as its warp
and covering yarn of high modules low shrinkage polyester covered by
cotton yarn as its weft. Saurer Twister of Allma Co. has been primarily
used for the preparation of the said warp of tire cord.
As for the said former twister, as shown in Figure 1 , twist 1 string of
polyester yarn fed from yarn feeding bobbin(A) and another 1 string of
polyester yarn fed from yarn feeding bobbin(B) standing upright position to the said bobbin(A) in cord regulator(4), then winding at winding bobbin(C)
by passing through capstan(5). The 1 string of polyester yarn fed from
the bobbin(B) standing upright reaches to cord regulator(4) passing
through inner yarn tensioner(3) by guide roller(2).
There is high possibility for yarn in bobbin(B) to slip down under
bobbin during unwinding (hereinafter called "Slip Phenomenon") since the
yarn feeding bobbin(B) is standing upright. Also, in the process of
preparing yarn feeding bobbin(B), it is obliged to have minor winding
tension difference during the winding yarn in bobbin(B), and there could
be fine hairs on yarn winded in bobbin(B).
In the former twister, lots of unwinding inferiority happen during the
unwinding of yarn from yarn feeding bobbin(B) to guide roller(2) due to the
said reasons such as Slip Phenomenon, winding tension difference, and fine
hairs in yarn.
Thus, there are several problems in the former twister that
over-feeding of yarn or jumping phenomenon of yarn to upward
(hereinafter called "jumping phenomenon") due to the said unwinding
inferiority.
As a result, the yarn is frequently squeezed and chewed between guide roller(hereinafter called "chewing phenomenon"), or winded around
inner yarn tensioner(3). In this case, the twister stops automatically
since higher tension(±10%) comparing to the setting value is loaded to the
self adjusting sensor. Accordingly, the ratio of full drum of the former
twister is in low level at 90—92% in general.
The more rotation speed(rpm) of twister, the more happening of
these serious phenomena. Because of these reasons, it is serious problem
for the former twister to drop down the ratio of full drum remarkably if the
twister is operated over than 7,500rpm.
The object of present invention is to provide a bobbin cover plate(l)
which can resolve the aforesaid problems caused by unwinding inferiority
during the process of high speed unwinding of yarn from yarn feeding
bobbin(B). In addition, the object of present invention is to improve the
productivity(rotation speed) and ratio of full drum of the twister.
DISCLOSURE OF INVENTION
The present invention is related to a bobbin cover plate used in
twister. More particularly, the present invention is related to a bobbin
cover plate used in twister, wherein twisting 2 strings of polyester yarns used for rubber reinforcing tire cord, for solving several problems caused
by unwinding inferiority of yarn feeding bobbin(B) and improving ratio of
full drum.
The present invention is to provide a bobbin cover plated ) which
can resolve the problems caused by unwinding inferiority during the
process of high speed unwinding of yarn from yarn feeding bobbin(B).
In the present invention, particularly, bobbin cover plated ) used in
twister is installed in right upward angle to the yarn feeding bobbin(B) as
shown in Figure 2. From this installation, it is possible to prevent the
chewing phenomenon, or winded around inner yarn tensioner(3) by
precluding the yarn over-feeding even in a high speed twisting.
The bobbin cover plate, shaped in circular plate, used in twister
characterized in that • a yarn guide grooved a) which guides the yarn in
yarn feeding bobbin(B) to upper direction of the bobbin cover plated ) is
installed in the center part of the circular plate, a yarn guide supporter(lb)
having punched yarn guided c) which feed the yarn in the center of guide
roller(2) is installed in lower part of the circular plate which is located at
right front position of guide roller(2) during operation, and a fixed part(ld)
which can fix the bobbin cover plate(l) to the body of guide roller(2) is installed in upper side of the circular plate.
Detail illustration on the present invention is followed hereinafter.
First of all, the bobbin cover plate used in twister of the present
invention is round circular plate as shown in Figure 3. The favorable
diameter of the circular bobbin cover plate(l) is 85~95% of the diameter of
yarn feeding bobbin(B) in full-drum condition. If the diameter of the
bobbin cover plate(l) is too large, the operation shall be inconvenient.
If it is too small, it is not possible to effectively protect the jumping
phenomenon and chewing phenomenon caused by unwinding inferiority.
A yarn guide grooved a) which guides the yarn in yarn feeding
bobbin(B) to upper direction of bobbin cover plate(l) is installed in the
center part of the circular plate. In the rim of the said yarn guide
grooved a), ceramic protection is prepared in order to prevent any fine
hairs in the yarn.
In the meantime, a yarn guide supporter(lb) having punched yarn
guide(lc) which feed the yarn in the center of guide roller(2) is installed in
lower part of the circular plate which is located at right front position of
guide roller(2) during operation. The said yarn guide supporter(lb)
shaped ^- as shown in Figure 3. The angle of θ in Figure 3 is 50-70°. More preferably, the angle of θ is 60°. Occasionally, the yarn guide
supporterdb) may have shape.
If the angle of θ is not within the aforesaid range, the yarn fed from
yarn feeding bobbin(B) may not be fed precisely to the exact center of
guide roller(2). The height(center basis) of yarn guide(lc) installed in
the yarn guide supporter(lb) should be set up as same as that of guide
roller(2). If the height of yarn guide(lc) is set up wrong, fine hairs may
come into exist due to the touch of yarn with the rim of yarn guide( lc).
In the meantime, a fixed part(ld) which can fix the bobbin cover
plate(l) to the body of guide roller(2) is installed in upper side of the
circular plate. By bolting the hole of said fixed part(ld), fix the bobbin
cover plate(l) to the lower part of guide roller body.
For the material of bobbin cover plate(l) in the present invention,
plastic such as acryl may be used, considering impact strength, in
particular, polycarbonate is favorable, and anti-static treated
polycarbonate is more favorable. Additionally, it is more favorable to
prepare bobbin cover plated ) with transparent plastic resin that the
operation status of yarn could be observed during twisting process. It
is more favorable to treat the rim of the circular plate roundly for the prevention of any damage(fine hairs etc.) to yarn.
From figure 2, detail illustration on the twisting process for rubber
reinforcing yarn by using the bobbin cover plated ) of the present invention
is followed hereinafter.
The bobbin cover plated ) of the present invention is fixed at the
lower part of guide roller(2) so as to the bobbin cover plate locates at the
right upward angle to yarn feeding bobbin(B).
One string of yarn fed from yarn feeding bobbin(A) installed in
certain inclination angle, is feed to cord regulator(4) through magnetic
brake, and another one string of yarn fed from yarn feeding bobbin(B)
standing upright is feed to cord regulator(4) through the bobbin cover
plate(l) of the present invention.
In this case, the yarn fed from yarn feeding bobbin(B) standing
upright comes up to the upper part of bobbin cover plated ) through yarn
guide grooved a) of the present invention, and is feed to the center part of
guide roller(2) through the hole of yarn guided c) installed in yarn guide
supporterdb).
The said guide roller(2) guide yarn before the yarn comes up to
inner yarn tensioner(3), and provides certain tension with yarn. In addition, the said inner yarn tensioner(3) substantially provides yarn come
up from yarn feeding bobbin(B) with tension before it reaches to cord
regulator(4).
It is favorable to provide yarn with 1, 340— 1 , 350g/d of tension in the
said inner yarn tensioner(3). If the yarn is twisted without having
proper tension, the twisting shall be unequal. When the twist gets
unequal, the length difference of yarn(hereinafter called "LD value"),
measuring each of the length of yarn after untwisting the twisted yarn, gets
bigger and the property of tire cord gets deteriorated. The lower LD
value the better it is, but up to 5mm of LD value is permitted.
2 strings of yarn fed to cord regulator(4) respectively are twisted
together in cord regulator. The cord regulator(4) aggregate and twist
the fed 2 strings of yarn by its self-rotation movement.
In case the bobbin cover plate of the present invention is installed, it
is possible to get high ratio of full drum even more than 9,000rpm of cord
regulator(4). Twisted yarn from cord regulator(4) is winded at
winding bobbin(C) passing through capstan(5) and etc.
The circular shaped bobbin cover plated ) of the present invention
protects the over-feeding of yarn from yarn feeding bobbin(B) to guide roller(2) and jumping phenomenon of yarn caused by unwinding inferiority.
As a result, it is possible to prevent chewing phenomenon of yarn in guide
roller(2) and unequal tanglement of yarn in inner yarn tensioner(3).
Accordingly, when the circular shaped bobbin cover plate(l) of the
present invention is used, the ratio of full drum of the twister shall be
improved over than 99% since the jumping phenomenon and chewing
phenomenon caused by unwinding inferiority of yarn feeding bobbin(B)
could be prevented.
BRIEF DESCRIPTION OF DRAWINGS
Figure 1 is a rough-drawing of former twisting process.
Figure 2 is a rough-drawing of twisting process of the present
invention.
Figure 3 is a plane drawing of bobbin cover plate(No. 1 in Figure 1)
of the present invention
Figure 4 is an enlarged-drawing of inner yarn tensioner(3) in Figure
1.
^ Legend for the main part of Figures
A, B : Yarn feeding bobbin C • Winding bobbin 1 : Bobbin cover plate 2 : Guide roller
3 '■ Iinner yarn tensionerGnternal tension controller of yarn)
4 : Cord regulator(twist providing device) 5 • Capstan
la • Yarn guide groove lb • Yarn guide supporter
lc • Yarn guide Id • Fixed part
BEST MODE FOR CARRYING OUT THE INVENTION
More concretely, the present invention shall be examined through
following examples and comparative examples. The present invention,
however, is not limited only to following experimental examples.
Example 1
Twist 2 strings of 1,500 denier polyester yarn at 9,000rpm of
twisting speed and l,340g/d of twisting tension with Saurer Twister of
Allma Co. (see Figure 2) wherein the bobbin cover plate(l) of the present
invention is installed at right upward angle to yarn feeding bobbin(B) as
shown in Figure 3. The said bobbin cover plate(l) is made of acryl resin
and the diameter is 200mm. Also, the θ angle of yarn guide
supporter(lb) is 65°, and the diameter of yarn guide groove (la) is 10mm.
The turn number of yarn in inner yarn tensioner(3) is set up at 5 times. Table 2 is the experiment result on ratio of full drum, LD value and waste
ratio.
Example 2 - Example 3
Except the change of specification and material of bobbin cover
plate(l), twisting speed, and twisting tension as shown in Table 1 , twist 2
strings of 1,500 denier polyester yarn as same process and condition of
example 1. Table 2 is the experiment result on ratio of full drum, LD
value and waste ratio.
[Table 1 ] Preparing condition
Comparative Example 1
Twist 2 strings of 1,500 denier polyester yarn at 6,500rpm of
twisting speed and l,340g/d of twisting tension with usual Saurer Twister
of Allma Co. (see Figure 1) wherein the bobbin cover plate(l) of the present invention is NOT installed. Table 2 is the experiment result on ratio of
full drum, LD value and waste ratio.
[Table 2] Experiment Result
INDUSTRIAL APPLICABILITY
The present invention prevents the over-feeding and jumping
phenomenon of yarn caused by unwinding inferiority of yarn feeding
bobbin(B). As a result, it is possible to improve the twister's ratio of
full drum over than 99% since the chewing phenomenon or rolling
phenomenon is remarkably decreased even the rotation speed of twister is
elevated. In addition, the productivity is improved since the rotation
speed of twister could be elevated until lO.OOOrpm.

Claims

WHAT IS CLAIMED IS
1. A bobbin cover plate, shaped in circular plate, used in twister
characterized in that • a yarn guide groove( la) which guides the yarn in
yarn feeding bobbin(B) to upper direction of the bobbin cover plate( l ) is
installed in the center part of the circular plate, a yarn guide supporter( lb)
having punched yarn guide( lc) which feed the yarn in the center of guide
roller(2) is installed in lower part of the circular plate which is located at
right front position of guide roller(2) during operation, and a fixed part( ld)
which can fix the bobbin cover plate( l) to the body of guide roller(2) is
installed in upper side of the circular plate.
2. The bobbin cover plate used in twister as claimed in claim 1 ,
wherein the yarn guide supporter( lb) has z shape.
3. The bobbin cover plate used in twister as claimed in claim 1 ,
wherein the diameter of the circular shaped bobbin cover plate(l ) is
85~95% of the diameter of yarn feeding bobbin(B) in full-drum condition.
.3
4. The bobbin cover plate used in twister as claimed in claim 1 ,
wherein the θ angle of yarn guide supporter( lb) is 50-70°
5. The bobbin cover plate used in twister as claimed in claim 1 ,
wherein the height(center basis) of yarn guided c) is as same as that of
guide roller(2).
6. The bobbin cover plate used in twister as claimed in claim 1 ,
wherein the material of bobbin cover plate( l) is anti-static treated
polycarbonate resin.
7. The bobbin cover plate used in twister as claimed in claim 1 ,
wherein the outside rim of bobbin cover plate(l) is rounding processed.
8. The bobbin cover plate used in twister as claimed in claim 1 ,
wherein the material of yarn guide groove( la) is ceramic.
EP01922076A 2000-03-25 2001-03-23 A bobbin cover plate used in twister Expired - Lifetime EP1268897B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR2000015251 2000-03-25
KR1020000015251A KR100614620B1 (en) 2000-03-25 2000-03-25 A bobbin cover plate used in twister
PCT/KR2001/000466 WO2001073175A1 (en) 2000-03-25 2001-03-23 A bobbin cover plate used in twister

Publications (3)

Publication Number Publication Date
EP1268897A1 true EP1268897A1 (en) 2003-01-02
EP1268897A4 EP1268897A4 (en) 2003-05-02
EP1268897B1 EP1268897B1 (en) 2005-06-29

Family

ID=36120926

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01922076A Expired - Lifetime EP1268897B1 (en) 2000-03-25 2001-03-23 A bobbin cover plate used in twister

Country Status (5)

Country Link
EP (1) EP1268897B1 (en)
KR (1) KR100614620B1 (en)
AT (1) ATE298811T1 (en)
DE (1) DE60111730T2 (en)
WO (1) WO2001073175A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102560768A (en) * 2011-12-02 2012-07-11 常熟市浩通市政工程有限公司 Yarn guider of textile machinery
CN103696061A (en) * 2013-12-24 2014-04-02 吴江市恒艺丝绸整理厂 Yarn guide
CN104499140A (en) * 2014-12-09 2015-04-08 四川中升博能生物科技股份有限公司 Winding device and process of winding wire for electric heating nets
CN106435878A (en) * 2016-10-31 2017-02-22 侯马市雅峰纺织制衣有限公司 Yarn guiding control device
CN106521732B (en) * 2016-12-30 2019-04-09 宜昌经纬纺机有限公司 Uniform twister
KR101947322B1 (en) 2017-11-14 2019-02-12 김일열 Circular cylinder of twister for rereeling equalization

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2958177A (en) * 1957-04-23 1960-11-01 American Enka Corp Cordforming
US3726077A (en) * 1971-03-12 1973-04-10 Heberlein & Co Ag Apparatus for prevention of crinkling in textile yarns
DE3743464A1 (en) * 1987-12-22 1989-07-13 Saurer Allma Gmbh Apparatus for the production of twines, especially tyre cord
DE9411246U1 (en) * 1994-07-12 1995-11-16 Saurer Allma Gmbh Device for the power supply of an electrically controllable thread brake or the like. on a cabling or double wire twist spindle
DE19924806C1 (en) * 1999-05-29 2000-06-21 Saurer Allma Gmbh Bobbin pot, for cable laying machine, has semi-cylindrical housing with side opening and spindle

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DE3015044A1 (en) * 1980-04-18 1981-10-29 HAMEL GmbH Zwirnmaschinen, 4400 Münster DOUBLE WIRE TWISTING DEVICE
DE3101146A1 (en) * 1981-01-16 1982-08-26 Fritz 7347 Bad Überkingen Stahlecker "SPINNING UNIT FOR A WINDING YARN SPINDING MACHINE"
KR870002305A (en) * 1985-08-16 1987-03-30 김규학 Elastic stretching machine
KR930001310Y1 (en) * 1991-06-27 1993-03-22 박욱현 Bobbin axis support of twisting machine
KR950001199U (en) * 1993-06-09 1995-01-04 이중열 Jumbo Bobbin Coupling Device
DE4414040A1 (en) * 1994-04-22 1995-10-26 Zinser Textilmaschinen Gmbh Build pattern for draw-twister bobbin
JP2818770B2 (en) * 1994-08-11 1998-10-30 雅男 山下 Method and apparatus for twisting decorative yarn

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2958177A (en) * 1957-04-23 1960-11-01 American Enka Corp Cordforming
US3726077A (en) * 1971-03-12 1973-04-10 Heberlein & Co Ag Apparatus for prevention of crinkling in textile yarns
DE3743464A1 (en) * 1987-12-22 1989-07-13 Saurer Allma Gmbh Apparatus for the production of twines, especially tyre cord
DE9411246U1 (en) * 1994-07-12 1995-11-16 Saurer Allma Gmbh Device for the power supply of an electrically controllable thread brake or the like. on a cabling or double wire twist spindle
DE19924806C1 (en) * 1999-05-29 2000-06-21 Saurer Allma Gmbh Bobbin pot, for cable laying machine, has semi-cylindrical housing with side opening and spindle

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO0173175A1 *

Also Published As

Publication number Publication date
EP1268897B1 (en) 2005-06-29
ATE298811T1 (en) 2005-07-15
WO2001073175A1 (en) 2001-10-04
EP1268897A4 (en) 2003-05-02
DE60111730T2 (en) 2006-04-20
KR100614620B1 (en) 2006-08-21
KR20010090357A (en) 2001-10-18
DE60111730D1 (en) 2005-08-04

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