SE543462C2 - A yarn unwinding device for a yarn creel - Google Patents

A yarn unwinding device for a yarn creel

Info

Publication number
SE543462C2
SE543462C2 SE1950890A SE1950890A SE543462C2 SE 543462 C2 SE543462 C2 SE 543462C2 SE 1950890 A SE1950890 A SE 1950890A SE 1950890 A SE1950890 A SE 1950890A SE 543462 C2 SE543462 C2 SE 543462C2
Authority
SE
Sweden
Prior art keywords
yarn
unwinding device
supporting arm
wound
spool
Prior art date
Application number
SE1950890A
Other languages
Swedish (sv)
Other versions
SE1950890A1 (en
Inventor
Urban Olsson
Original Assignee
Ab Svenskt Konstsilke
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 Ab Svenskt Konstsilke filed Critical Ab Svenskt Konstsilke
Priority to SE1950890A priority Critical patent/SE543462C2/en
Priority to EP20840559.7A priority patent/EP4028347A1/en
Priority to PCT/SE2020/050718 priority patent/WO2021010885A1/en
Publication of SE1950890A1 publication Critical patent/SE1950890A1/en
Publication of SE543462C2 publication Critical patent/SE543462C2/en

Links

Classifications

    • 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
    • B65H59/02—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating delivery of material from supply package
    • B65H59/04—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating delivery of material from supply package by devices acting on package or support
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H57/00—Guides for filamentary materials; Supports therefor
    • B65H57/18—Guides for filamentary materials; Supports therefor mounted to facilitate unwinding of material from packages
    • 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
    • D01H13/12—Arrangements preventing snarls or inadvertent doubling of yarns
    • 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
    • D01H7/866—Means to facilitate the unwinding of yarn
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02H—WARPING, BEAMING OR LEASING
    • D02H1/00—Creels, i.e. apparatus for supplying a multiplicity of individual threads
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Unwinding Of Filamentary Materials (AREA)

Abstract

The present invention relates to a yarn unwinding device (100) comprising a yarn spool (200), being provided with wound yarn (202), and a supporting arm (101), wherein the yarn spool (200) has a length and a diameter, and wherein the supporting arm (101) comprises attachment means (102) and the supporting arm (101) is arranged in the vicinity of an exit region, wherein said exit region is located in an area where a yarn thread (204), when being unwinded from the wound yarn (202), exits the wound yarn (202), and wherein the supporting arm (101) stops any movement of said yarn thread (204) inside the diameter of the wound yarn (202), a rack, e.g. a yarn creel, for example, an unrolling yarn creel, method for producing a yarn unwinding device, method for producing a rack, e.g. a yarn creel, for example, an unrolling yarn creel, and a method for arranging a yarn unwinding device into an existing rack, e.g. an existing yarn creel, for example, an existing unrolling yarn creel, all useful in industrial processes.

Description

A yarn unwinding device for a yarn creel TECHNICAL FIELD The present invention relates to a yarn unwinding device, a rack, e.g. a yarn creel, forexample, an unrolling yarn creel, method for producing a yarn unwinding device,method for producing a rack, e.g. a yarn creel, for example, an unrolling yarn creel,and a method for arranging a yarn unwinding device into an existing rack, e.g. an existing yarn creel, for example, an existing unrolling yarn creel.
BACKGROUND ART ln industry, industrial yarns are arranged to be drawn, and unwinded, from yarnspools, with wound yarn, on a yarn creel systems by a pulling means with tensioncontroll. A problem, in industrial processes comprising unwinding of a yarn threadfrom wound yarn on a yarn spool, can be that the yarn thread moves, during itsunwinding, in a direction towards the inside of the diameter of the wound yarn, e.g.the yarn thread moves off, for example, moves off and/or falls off, the wound yarn ofthe yarn spool, i.e. from moving inside the diameter of the wound yarn. That the yarnthread moves, during its unwinding, in a direction towards the inside of the diameterof the wound yarn, can happen when the yarn spool is badly wounded or when theunwinding, or unrolling, is jumpy or parallel to the the yarn directon. The unwinding,or unrolling, may be jumpy or parallel to the the yarn directon, for example, whenneither any unwinding guide, nor unrolling guide, is used.
Thus, there is a need for new solutions to meet the demands of said industrial processes comprising unwinding of a yarn thread from wound yarn on a yarn spool.
DESCRIPTION OF THE INVENTION The present invention relates to a yarn unwinding device comprising a yarn spool,being provided with wound yarn, and a supporting arm, wherein the yarn spool has alength and a diameter, and wherein the supporting arm comprises attachment meansand the supporting arm is arranged in the vicinity of an exit region, wherein said exitregion is located in an area where a yarn thread, when being unwinded from thewound yarn, exits the wound yarn, and wherein the supporting arm stops anymovement of said yarn thread inside the diameter of the wound yarn.
The yarn unwinding device according to the present invention, comprises a yarnspool being provided with wound yarn. The yarn may, for example, be any suitable industrial yarn.
The yarn spool being provided with wound yarn may have any suitable form, for example, a cylindrical form or a conical form.
The yarn unwinding device according to the present invention, comprises a supporting arm, which may have any suitable form, for example, an elongated form.
Further, the supporting arm may be of any suitable composition, comprising e.g. anysuitable metallic material, plastic material, ceramic material, or wooden material. lnsome embodiments, the supporting arm may comprise, for example, a suitable low friction material.
Furthermore, the supporting arm comprises attachment means, wherein theattachment means comprises attachment functions for attaching the supporting arm,as well as, arranging functions for arranging the supporting arm in the vicinity of saidexit region. Said attachment functions, and said arranging functions, can all be of any suitable kind, or type, known to person skilled in the art. ln some embodiments, the supporting arm can, for example, comprise, or be, a fixedsupporting arm mounted to the rack, e.g. the yarn creel, for example, a pin sticking out from the wall of the rack, e.g. of the yarn creel. ln still further embodiments of the present invention, the supporting arm can, for example, be mounted below the yarn spool. ln further embodiments of the present invention, the movement of the supporting armcan be via a positioning member, e.g. via a positioning roller, and via the radialmovement. ln even further embodiments of the present invention, the movement of thesupporting arm can be in another way than via a positioning roller, and via the radial movement.
The yarn unwinding device according to the present invention has surprisingly beenshown to be able to help with problems in processes comprising unwinding of a yarn thread from wound yarn on a yarn spool.
The problems, in industrial processes comprising unwinding of a yarn thread fromwound yarn on a yarn spool, being that the yarn thread moves, during its unwinding,in a direction towards the inside of the diameter of the wound yarn, e.g. the yarnthread moves off, for example, moves off and/or falls off, the wound yarn of the yarnspool, i.e. from moving inside the diameter of the wound yarn, may as alreadydescribed happen when the yarn spool is badly wounded or when the unwinding, orunrolling, is jumpy or parallel to the the yarn directon. Thus, it has been shown that,with an unwinding device, in accordance with the present invention, wherein theunwinding device comprises a supporting arm, we have been able to stop themovements of the yarn thread in a direction towards the inside of the diameter of the wound yarn.
Consequently, with an unwinding device, as described herein, in accordance with thepresent invention, we have surprisingly been able to succesfully keep the yarnthread, during its unwinding, on the outside of the yarn spool, i.e. on the diameter, or on the outside of the diameter, of the wound yarn.
Accordingly, the supporting arm of the yarn unwinding device, as described herein, inaccordance with the present invention, has shown to be able to prevent the yarnthread, during said unwinding of the yarn thread, from moving in a direction towardsthe inside of the diameter of the wound yarn, and/or outside the length of the wound yarn, on the yarn spool.
Further, that the supporting arm stops any movement of said yarn thread inside thediameter of the wound yarn, includes, for exampe, that the supporting arm stops saidyarn thread from moving in a direction substantially towards the pivoting axel of the yarn spool. ln further embodiments of the yarn unwinding device according to the presentinvention, as described herein, the supporting arm is arranged in the vicinity of saidexit region, and wherein said exit region is located in the lower half, e.g. the lowerend, of the wound yarn on the yarn spool. ln embodiments of the yarn unwindingdevice according to the present invention, the exit region is located in the lower half, e.g. the lower end, of the circumference of the wound yarn on the yarn spool. ln even further embodiments of the yarn unwinding device according to the presentinvention, as described herein, the supporting arm is arranged in the vicinity of saidexit region, and wherein said exit region is located in the upper half, e.g. the upperend, of the wound yarn on the yarn spool. ln embodiments of the yarn unwindingdevice according to the present invention, the exit region is located in the upper half, e.g. the upper end, of the circumference of the wound yarn on the yarn spool. ln further embodiments of the yarn unwinding device according to the presentinvention, as described herein, the yarn unwinding device further comprises a positioning means for positioning the supporting arm in the vicinity of said exit region.
The supporting arm is close to the unrolled yarn, i.e. the supporting arm is positionedin the vicinity of said exit region, has been shown to prevent movements of the yarnthread in a direction towards the inside of the diameter of the wound yarn also if theyarn thread moves over the edge of the yarn spool. Further, that the supporting armis close to the unrolled yarn, i.e. the supporting arm is positioned in the vicinity of saidexit region, has also been shown to prevent movements of the yarn thread in adirection towards the inside of the diameter of the wound yarn if the wound yarn onthe yarn spool has cross ends, meaning that the yarn thread is taking a shortcut onthe side of the wound yarn on the yarn spool, i.e. inside the diameter of the wound yarn, instead of being winded on the circumference. ln even further embodiments of a yarn unwinding device according to the presentinvention, as described herein, the positioning means comprises a positioningmember in rotationally contact with the wound yarn in an extension along the lengthof the wound yarn, and wherein the supporting arm is attached to the positioning means and extends away from the positioning member.
The purpose of the positioning member, e.g. a positioning roller, is to keep thesupporting arm as close to the yarn as possible during unwinding of the yarn threadfrom the wound yarn. ln further embodiments of the present invention, the positioningmember, e.g. the positioning roller, and also the supporting arm, may also beconstrued to fall away from the yarn spool when the yarn spool becomes empty. Theyarn unwinding device may, for example, be construed so that the supporting arm isnot touching the wound yarn when supporting the yarn during its unwinding and/or fall away from the yarn spool when the supporting arm falls away from the yarn spool. ln still further embodiments of a yarn unwinding device according to the presentinvention, as described herein, the supporting arm is attached to the positioningmeans and is substantially parallel to, and extends away from, the positioning member.
The attachment means may further comprise any rotationally means, pivotallymeans, and/or similar means, wherein said rotationally means, said pivotally means,and said similar means, enable the arrangement of the supporting arm. ln further embodiments of a yarn unwinding device according to the presentinvention, as described herein, the yarn unwinding device further comprises a pullingmeans, e.g. a pulling machine and/or a pulling force working on the yarn thread, (forexample, a pulling machine or a pulling force working on the yarn thread) for enabling the unwinding of the yarn thread from the wound yarn.
The yarn unwinding device according to the present invention, as described herein,may be used in a rack, for example, a yarn creel, where the yarn thread is unwindedby a pulling means, e.g. by another machine, for example, an external machine. Thespindles of the rack, for example, of the yarn creel, has each of them a brake to givea certain yarn tension of the unwinded yarn, i.e. the yarn thread. The speed of the unwinding is decided by the pulling means, e.g. the another machine, for example, the external machine. ln still further embodiments of a yarn unwinding device according to the present invention, as described herein, the yarn is an industrial yarn.
The yarn unwinding device according to the present invention, as described herein,is, for example, intended to be used in yarn creels with many rack spindles, e.g. yarncreel spindles, working at the same time. The purpose for the supporting arm of theyarn unwinding device according to the present invention, as described herein, is toprevent any of the yarn from moving in a direction towards the inside of the diameterof the yarn spools mounted on each fo the spindles in the yarn creel to causeprocess probems by moving off, and/or falling off, the yarn spool edge and cause yarnbreak and stop of the whole process feeded by the yarn creel. ln even further embodiments of a yarn unwinding device according to the presentinvention, as described herein, the yarn unwinding device further comprises a rack,for example, a yarn creel, e.g., a unrolling yarn creel, comprising a rack spindle for holding the yarn spool in place. ln further embodiments of a yarn unwinding device according to the presentinvention, as described herein, the supporting arm has an extension which extendssubstantially along the length of the wound yarn on the yarn spool.
The active part of the supporting arm is in the area of the edges of the yarn spool, i.e. in the area of the edges of the wound yarn. Thus, in some embodiments of the yarnunwinding device in accordance with the present invention, the supporting arm istherefore longer, i.e. has an extension along the length of the wound yarn that islonger then the yarn spool, and/or the wound yarn, is wide. ln even further embodiments of a yarn unwinding device according to the presentinvention, as described herein, said attachment means is arranged in a first end ofthe positioning means, wherein the positioning means has an extension from the firstend, where the attachment means is arranged, towards a second end of thepositioning means, where in said second end the positioning means is connected tothe supporting arm.
The length of said extension of the positioning means, and the position of theattachment means, will give the rotational geometry for the supporting arm to move on the yarn spool during processing, e.g. comprising unwinding of yarn thread. ln further embodiments of a yarn unwinding device according to the presentinvention, as described herein, the supporting arm comprises one flange at one endof the supporting arm, or the supporting arm comprises two flanges, wherein one flange is located at each end of the supporting arm.
The flanges will improve the support of the yarn thread at the turning points on theyarn spool edges. ln further embodiments of the yarn unwinding device inaccordance with the present invention, the yarn spool may, ideally, be precision cross winded. ln still further embodiments of a yarn unwinding device according to the presentinvention, as described herein, the yarn unwinding device is construed so that thesupporting arm, in a predetermined distance from the surface of the wound yarn,follows the decreasing diameter of the wound yarn on the yarn spool, during unwinding of the wound yarn.
Further embodiments of a yarn unwinding device according to the present invention,as described herein, is disclosed, wherein the yarn unwinding device is construed sothat the supporting arm leaves the vicinity of said exit region when the diameter, ofthe wound yarn on the yarn spool, has decreased to a predetermined diameter, oralternatively, when the yarn spool is empty, i.e. there is no more yarn on the yarn spooL ln a further embodiment the yarn unwinding device is construed so that thesupporting arm follows the decreasing diameter of the wound yarn on the yarn spool,during unwinding of the wound yarn, wherein said construction to follow said decreasing diameter comprises the attachment means.
The present invention also relates to a rack comprising a yarn unwinding device according to the present invention, as described herein.
The rack, according to the present invention, may, for example, be a yarn creel.These racks, e.g. yarn creels, can have different brake systems for the rack spindles and different ways to control the yarn thread path after the unwinding area, e.g. with guide roller/s arranged in suitable locations with fastening means. ln further embodiments of a rack according to the present invention, as described herein, the rack is a yarn cree|, for example, an unro||ing yarn cree|. ln still further embodiments of a rack according to the present invention, as describedherein, the rack comprises a plurality of yarn unwinding devices in accordance with the present invention as described herein.
The present invention further also relates to a method for producing a yarn unwindingdevice according to the present invention.
Further, the present invention do also relates to a method for producing a rack,according to the present invention, comprising a yarn unwinding device, or a plurality of yarn unwinding devices, as described herein.
The present invention also relates to a method for arranging a yarn unwindingdevice, as described herein, into an existing rack, e.g. an existing yarn cree|, forexample, an existing unro||ing yarn cree|, and thereby modifying the existing rack,e.g. the existing yarn cree|, for example, the existing unro||ing yarn cree|.
BRIEF DESCRIPTION OF DRAWINGS The invention will be described in greater detail in the following, with reference tosome embodiments that are shown in the attached drawings. However, allthough theattached drawings here only show embodiments of the yarn unwinding device, asdescribed herein, wherein the supporting arm is arranged in the vicinity of said exitregion being located in the upper half, e.g. the upper end, of the wound yarn on theyarn spool, it is already here declared that also embodiments of the yarn unwindingdevice, as described herein, wherein the supporting arm is arranged in the vicinity ofsaid exit region being located in the lower half, e.g. the lower end, of the wound yarnon the yarn spool, are included. The person skilled in the art would understand fromthe attached drawings also how embodiments of the yarn unwinding device, asdescribed herein, wherein the supporting arm is arranged in the vicinity of said exitregion being located in the lower half, e.g. the lower end, work and will be modified.
Fig. 1 shows a side view from above of a yarn unwinding device according to the present invention.
Fig. 2a to 2e show a series of side views of a yarn unwinding device according to the present invention.
Fig. 3 shows a front view from above of a yarn unwinding device according to the present invention.
DETAILED DESCRIPTION The embodiments of the invention as described in the following are to be regardedonly as examples and are in no way intended to limit the scope of the present invenfion.
Fig. 1 shows a side view from above of a yarn unwinding device (100) comprising ayarn spool (200), being provided with wound yarn (202), and a supporting arm (101),wherein the yarn spool (200) has a length and a diameter, and wherein thesupporting arm (101) comprises attachment means (102) and the supporting arm(101) is arranged in the vicinity of an exit region, wherein said exit region is located inan area where a yarn thread (204), when being unwinded from the wound yarn (202), exits the wound yarn (202). lt is further shown in Fig.1 how said yarn thread (204) isin contact with the supporting arm (101) of the yarn unwinding device (100). Thus, itcan hereby also, accoordingly, be understood how the supporting arm (101) of theyarn unwinding device (100) would stop movements of said yarn thread (204) insidethe diameter of the wound yarn (202). Here in Fig. 1, said exit region is located in theupper half, e.g. the upper end, of the wound yarn (202), and of the yarn spool (200).However, as already declared above, also embodiments where said exit region islocated in the lower half, e.g. the lower end, of the wound yarn (202) on the yarnspool (200), are included herein in accordance with the present invention. Again, theperson skilled in the art would understand also how such embodiments work and willbe modified. This reasoning applies also mutatis mutandis to the embodiments asdescribed in Fig. 2a to Fig. 2e and Fig. 3.
Further in Fig. 1, the yarn unwinding device (100) also comprises a positioningmeans (106, 108) positioning the supporting arm (101) in the vicinity of said exitregion. The positioning means (106, 108) comprises a positioning member (104) inrotationally contact with the wound yarn (202) in an extension along the length of thewound yarn (202). The supporting arm (101) is attached to the positioning means(106, 108), also together with the attachment means (102), and is substantially parallel to, and extends away from the positioning member (104).
Furthermore in Fig. 1, the yarn unwinding device (100) also comprises a pullingmeans, e.g. a pulling machine and/or a pulling force working on the yarn thread (204), for enabling the unwinding of the yarn thread (204) from the wound yarn (202).
The pulling means is illustrated as the very left arrow in Fig. 2a to 2d, i.e. the pullingforce working on the yarn thread (204) in Fig. 2a to 2d. The yarn unwinding device(100) in Fig. 1 further comprises a rack (300), which may, for example, illustrate apart of yarn creel, e.g., a part of a unrolling yarn creel, comprising a rack spindle(302)for holding the yarn spool (200) in place. Moreover, in Fig. 1 it is shown that thesupporting arm (101) has an extension (L1) which extends substantially along thelength of the wound yarn (202), and that the attachment means (102) is arranged in afirst end of the positioning means (106), wherein the positioning means (106) has anextension (L2) from the first end, where the attachment means (102) is arranged,towards a second end of the positioning means, where in said second end the positioning means (106) is connected to the supporting arm (101). 11 Further, in Fig. 1 it is shown that the supporting arm (101) has tvvoflanges (110, 112), wherein one flange is located at each end of the supporting arm (101).
Furthermore, in Fig. 1 it is also shown that the yarn thread (204) moves over a guideroller (304) being fastened to the rack (300) via a fastening means (306). ln Fig. 2a to 2e some functions of the yarn unwinding device (100) is illustrated.Firstly, as already mentioned the pulling means is illustrated as the very left arrow inFig. 2a to 2d, i.e. the pulling force working on the yarn thread (204) in Fig. 2a to 2d.Further, in Fig. 2a to 2d the arrow to the right illustrates how the yarn spool (200) withwound yarn (202) rotates as the pulling force works on the yarn thread (204). Also inFig. 2a to 2d it is shown how the yarn unwinding device (100) is construed so that thesupporting arm (101 ), in a predetermined distance from the surface of the woundyarn (202), follows the decreasing diameter of the wound yarn (202) on the yarnspool (200), during unwinding of the wound yarn (202). Further, in Fig. 2e it is shownthat the yarn unwinding device (100) is construed so that the supporting arm (101)leaves the vicinity of said exit region when the diameter, of the wound yarn (202) onthe yarn spool (200), has decreased to a predetermined diameter, i.e. here when the yarn spool (200) is empty.
Fig. 3 shows a front view from above of a yarn unwinding device (100) comprising ayarn spool (200), being provided with wound yarn (202), and a supporting arm (101).For the description of any further references in Fig. 3 refer to the description of the correponding references in Fig. 1.

Claims (19)

1. A yarn unwinding device (100) comprising a yarn spool (200), being provided withwound yarn (202), and a supporting arm (101 ), wherein the yarn spool (200) has alength and a diameter, and wherein the supporting arm (101) comprises attachmentmeans (102), the supporting arm (101) is arranged in the vicinity of an exit region,and the supporting arm (101) has an extension (L1) which extends substantiallyalong the length of the wound yarn (202) on the yarn spool (200), wherein said exitregion is located in an area where a yarn thread (204), when being unwound from thewound yarn (202), exits the wound yarn (202), wherein the supporting arm (101) ispositioned between the yarn thread (204) and the yarn spool (200) so that thesupporting arm (101) stops said yarn thread (204) from moving in a directionsubstantially towards the yarn spool (200), and wherein the supporting arm (101)stops any movement of said yarn thread (204) inside the diameter of the wound yarn(202).
2. A yarn unwinding device (100) according to claim 1, wherein the supporting arm(101) is arranged in the vicinity of said exit region, and wherein said exit region islocated in the lower half, e.g. the lower end, of the wound yarn (202) on the yarnspool (200).
3. A yarn unwinding device (100) according to claim 1, wherein the supporting arm(101) is arranged in the vicinity of said exit region, and wherein said exit region islocated in the upper half, e.g. the upper end, of the wound yarn (202) on the yarnspool (200).
4. A yarn unwinding device (100) according to anyone of claims 1 to 3, wherein theyarn unwinding device (100) further comprises a positioning means (106, 108) for positioning the supporting arm (101) in the vicinity of said exit region.
5. A yarn unwinding device (100) according to claim 4, wherein the positioning means(106, 108) comprises a positioning member (104) in rotationally contact with the wound yarn (202) in an extension along the length of the wound yarn (202).
6. A yarn unwinding device (100) according to claim 5, wherein movement of thesupporting arm (101) can be achieved via the positioning member, e.g. via a positioning roller (104), and via the radial movement.
7. A yarn unwinding device (100) according to anyone of claims 1 to 6, wherein theyarn unwinding device (100) further comprises a pulling means, e.g. a pullingmachine and/or a pulling force working on the yarn thread (204), for enabling the unwinding of the yarn thread (204) from the wound yarn (202).
8. A yarn unwinding device (100) according to anyone of claims 1 to 7, wherein theyarn (202, 204) is an industrial yarn.
9. A yarn unwinding device (100) according to anyone of claims 1 to 8, wherein theyarn unwinding device (100) further comprises a rack (300), for example, a yarncree|, e.g., a unro||ing yarn cree|, comprising a rack spindle (302)for holding the yarnspool (200) in place.
10. A yarn unwinding device (100) according to anyone of claims 1 to 9, wherein saidattachment means (102) is arranged in a first end of the positioning means (106),wherein the positioning means (106) has an extension (L2) from the first end, wherethe attachment means (102) is arranged, towards a second end of the positioningmeans, where in said second end the positioning means (106) is connected to the supporting arm (101 ).
11. A yarn unwinding device (100) according to anyone of claims 1 to 10, wherein thesupporting arm (101) comprises one flange at one end of the supporting arm (101),or the supporting arm (101) comprises two flanges (110, 112), wherein one flange is located at each end of the supporting arm (101).
12. A yarn unwinding device (100) according to claim 11, wherein the supporting arm(101) comprises comprises two flanges (110, 112), wherein one flange is located ateach end of the supporting arm (101), and wherein the yarn thread (204) isprevented, during said unwinding of the yarn thread (204), from moving outside the length of the wound yarn (202), on the yarn spool (200).
13. A yarn unwinding device (100) according to anyone of claims 1 to 12, wherein theyarn unwinding device (100) is construed so that the supporting arm (101), in apredetermined distance from the surface of the wound yarn (202), follows thedecreasing diameter of the wound yarn (202) on the yarn spool (200), during unwinding of the wound yarn (202).
14. A yarn unwinding device (100) according to anyone of claims 1 to 13, wherein theyarn unwinding device (100) is construed so that the supporting arm (101) leaves thevicinity of said exit region when the diameter, of the wound yarn (202) on the yarnspool (200), has decreased to a predetermined diameter, or alternatively, when the yarn spool (200) is empty.
15. A rack (300) comprising a yarn unwinding device (100) according to anyone of claims 1 to 8 or claims 10 to 14.
16. A rack (300) according to claim 14, wherein the rack (300) comprises a pluralityof yarn unwinding devices (100) according to anyone of claims 1 to 8 or claims 10 to14.
17. A method for producing a yarn unwinding device (100) according to anyone of claims 1 to 14.
18. A method for producing a rack (300) according to anyone of claims 15 to 16.
19. A method for arranging a yarn unwinding device (100) according to anyone ofclaims 1 to 14 into an existing rack, e.g. an existing yarn cree|, for example, anexisting unrolling yarn cree|, and thereby modifying the existing rack, e.g. the existing yarn cree|, for example, the existing unrolling yarn creel.
SE1950890A 2019-07-12 2019-07-12 A yarn unwinding device for a yarn creel SE543462C2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE1950890A SE543462C2 (en) 2019-07-12 2019-07-12 A yarn unwinding device for a yarn creel
EP20840559.7A EP4028347A1 (en) 2019-07-12 2020-07-08 A yarn unwinding device for a yarn creel
PCT/SE2020/050718 WO2021010885A1 (en) 2019-07-12 2020-07-08 A yarn unwinding device for a yarn creel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1950890A SE543462C2 (en) 2019-07-12 2019-07-12 A yarn unwinding device for a yarn creel

Publications (2)

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SE543462C2 true SE543462C2 (en) 2021-02-23

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SE1950890A SE543462C2 (en) 2019-07-12 2019-07-12 A yarn unwinding device for a yarn creel

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EP (1) EP4028347A1 (en)
SE (1) SE543462C2 (en)
WO (1) WO2021010885A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB267872A (en) * 1926-03-22 1927-09-26 James Daniel Joyce Improvements in and relating to devices for unwinding yarns, threads or the like
FR976807A (en) * 1948-10-20 1951-03-22 Apparatus for unwinding by unwinding or unwinding textile threads in any presentation
EP0300553A1 (en) * 1987-07-24 1989-01-25 SAVIO S.p.A. Unwinder arm rotating about a pivot suspended above a two-for-one twisting spindle for unwinding superposed bobbins
EP1550748A2 (en) * 2004-01-03 2005-07-06 Saurer GmbH & Co. KG Textile machine and method for manufacturing cabled yarns

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB267872A (en) * 1926-03-22 1927-09-26 James Daniel Joyce Improvements in and relating to devices for unwinding yarns, threads or the like
FR976807A (en) * 1948-10-20 1951-03-22 Apparatus for unwinding by unwinding or unwinding textile threads in any presentation
EP0300553A1 (en) * 1987-07-24 1989-01-25 SAVIO S.p.A. Unwinder arm rotating about a pivot suspended above a two-for-one twisting spindle for unwinding superposed bobbins
EP1550748A2 (en) * 2004-01-03 2005-07-06 Saurer GmbH & Co. KG Textile machine and method for manufacturing cabled yarns

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WO2021010885A1 (en) 2021-01-21
EP4028347A1 (en) 2022-07-20

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