EP1477597B1 - Tail yarn cutting device for spinning machine - Google Patents
Tail yarn cutting device for spinning machine Download PDFInfo
- Publication number
- EP1477597B1 EP1477597B1 EP04009106A EP04009106A EP1477597B1 EP 1477597 B1 EP1477597 B1 EP 1477597B1 EP 04009106 A EP04009106 A EP 04009106A EP 04009106 A EP04009106 A EP 04009106A EP 1477597 B1 EP1477597 B1 EP 1477597B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tail yarn
- yarn cutting
- cutting member
- spindle
- base portion
- 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.)
- Expired - Lifetime
Links
- 238000009987 spinning Methods 0.000 title claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 239000011347 resin Substances 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 7
- 230000002708 enhancing effect Effects 0.000 claims description 6
- 230000001174 ascending effect Effects 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 238000004804 winding Methods 0.000 description 24
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 239000000725 suspension Substances 0.000 description 5
- 230000002452 interceptive effect Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 238000007378 ring spinning Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B5/00—Hand knives with one or more detachable blades
- B26B5/001—Hand knives with one or more detachable blades with blades being slid out of handle immediately prior to use
- B26B5/002—Hand knives with one or more detachable blades with blades being slid out of handle immediately prior to use segmented blades
-
- 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
-
- 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
- D01H1/38—Arrangements for winding reserve lengths of yarn on take-up packages or spindles, e.g. transfer tails
Definitions
- the present invention relates to a tail yarn cutting device for a spinning machine and, more specifically, to a tail yarn cutting device for a spinning machine in which yarn is automatically taken up at the re-starting of the machine after the fitting of an empty bobbin onto a spindle from which cop has been pulled up by a doffing device.
- a spinning machine such as a ring spinning machine or a ring twisting machine, in which yarn is taken up through a traveler
- yarn is taken up through a traveler
- a tail yarn cutting portion on the spindle base portion and a tail yarn winding portion below the same after a full bobbin state has been attained, a ring rail is abruptly lowered to perform oblique winding (barrel winding), and then yarn is wound around the tail yarn winding portion, the yarn (tail yarn) connected from the tail yarn winding portion to the full cop being cut by the tail yarn cutting portion when the full cop is pulled out.
- the tail yarn wound around the tail yarn winding portion remains thereon after doffing, and the amount of remnant yarn increases as doffing is repeated, so that it is necessary to frequently perform remnant yarn treatment. Further, since the winding length of the tail yarn is large, the remnant yarn is hard to remove.
- JP 10-317233 A discloses a device in which tail yarn is grasped by an under-winding collar fixed to a spindle and a slide sleeve provided so as to be vertically slidable on a wharve into which the spindle is fitted for fixation.
- an under-winding collar 52 is secured to the lower portion of a bobbin fitting portion 51 of a spindle 50, and a plurality of protrusions 53 extending in an axial direction of the spindle 50 are provided below the under-winding collar 52.
- a slide sleeve 55 so as to be capable of sliding vertically while guided by the protrusions 53, and the sleeve 55 is urged by a compression spring 56 such that its upper end can abut the lower surface of the under-winding collar 52.
- a knife 57 is provided below the under-winding collar 52 and on the outer side of the sleeve 55.
- the ring rail 58 ascends again until it stops at the doffing position, whereby the tail yarn is grasped between the lower surface of the under-winding collar 52 and the upper end of the sleeve 55, with a roll or less of yarn wound around the spindle 50.
- the cop 60 is doffed, and, halfway through the doffing, the yarn Y connected to the cop 60 is cut by the knife 57.
- a notch is provided in the lower surface of the under-winding collar 52 and in which a notch to be engaged with the above-mentioned notch is provided at the upper end of the sleeve 55.
- JP 2002-173837 A (a family member of EP 1 213 381 which forms the basis for the preamble of claim 1) discloses a method in which, as shown in Fig. 8 of the present application, on a blade 50b up wardly extending from a spindle base portion 50a, there is provided a tail yarn cutting member 61 equipped with a bobbin fitting portion 61a and a cutter portion 61b so as to be capable of ascending and descending.
- the tail yarn cutting member 61 is constantly urged by a coil spring 62 toward the spindle base portion 50a.
- a ring rail stops in the vicinity of a contact portion where the tail yarn cutting member 61 and the spindle base portion 50a are in contact with each other.
- the spindle 50 stops, with a roll or less of yarn wound at a position somewhat below the contact portion.
- cop is pulled up by a doffing device, and the tail yarn cutting member 61 is raised together with the cop halfway through the pulling-up, yarn connected from the cop to a traveler being guided to a position between the tail yarn cutting member 61 and the spindle base portion 50a.
- the yarn is grasped between the tail yarn cutting member 61 detached from the cop and the spindle base portion 50a, and the yarn is cut by the cutter portion 61b.
- the compression spring 56 which holds the sleeve 55 in cooperation with the under-winding collar 52, such that its upper end abuts against the lower surface of the under-winding collar 52, is indispensable. It is necessary for the compression spring 56 to push up the sleeve 55 against the weight of the sleeve 55 and the stopper ring 55a and to abut the sleeve 55 against the lower surface of the under-winding collar 52 with the requisite force for grasping. Thus, the compression spring 56 must have a spring force larger than the urging force required for the grasping.
- the tail yarn cutting member 61 is moved from the grasping position to the releasing position together with the cop with the doffing operation of the doffing device, and it is only necessary for the ring rail to be lowered to the doffing suspending position, so that, as compared to the method of JP 10-317233 A , the lowering control for the ring rail is easier.
- the tail yarn cutting member 61 grasps the yarn between its lower, horizontal surface and the upper surface of the spindle base portion 50a, so that, if the pressurizing force of the tail yarn cutting member 61 is small, it may occur that the yarn is pulled out of the grasping portion at the take-up start after the fitting of the empty bobbin, making the take-up impossible. If, to increase the grasping force of the tail yarn cutting member 61, the weight of the tail yarn cutting member 61 itself is increased or the urging force of the coil spring 62 is increased, this may interfere with the operation of the doffing device.
- the present invention has been made in view of the problems in the prior art. It is an object of the present invention to provide a tail yarn cutting device for a spinning machine which requires no complicated operation of the ring rail during suspension for doffing and which makes it possible to shorten the yarn (tail yarn) remaining on the spindle base portion without interfering with the operation of the doffing device.
- a tail yarn cutting device for a spinning machine having the features of claim 1.
- Embodiments of the invention are named in the dependent claims.
- the bobbin is fitted onto the spindle, with its lower portion fitted onto the bobbin fitting portion of the tail yarn cutting member.
- the ring rail is lowered, and stopped in a state in which the yarn connected to the cop by way of the traveler passes a position not higher than the contact portion where the tail yarn cutting member and the spindle base portion are in contact with each other.
- the spindle stops, with yarn wound at a position not higher than the contact portion where tail yarn cutting member and the spindle base portion are in contact with each other.
- the cop is pulled up by the doffing device, and halfway through the pulling-up, the yarn connected from the cop to the traveler is guided to a position between the tail yarn cutting member and the spindle base portion. Thereafter, the ascent of the tail yarn cutting member is restrained by the regulating means, and the tail yarn cutting member is detached from the cop and lowered. Then, the above-mentioned yarn is grasped between the tail yarn cutting member detached from the cop and the spindle base portion, and the yarn is cut by the cutter portion. The end portion of the yarn connected to the traveler is grasped between the tail yarn cutting member and the spindle base portion until the next doffing.
- the yarn grasped between the tail yarn cutting member and the spindle base portion is detached from the spindle together with the cop upon the next doffing. Due to the plurality of protrusions and recesses provided at the lower end of the tail yarn cutting member and the upper end portion of the spindle base portion opposed to the above-mentioned lower end portion, the yarn is grasped while bent, so that even if the force with which the tail yarn cutting member is pressed against the spindle base portion is so small as not to interfere with the operation of the doffing device, the grasping of the yarn is reliably effected. Thus, no complicated operation of the ring rail is required during suspension for doffing, making it possible to shorten the yarn (tail yarn) remaining on the spindle base portion without interfering with the operation of the doffing device.
- the plurality of protrusions and recesses can be formed so as to extend radially.
- the yarn is in a zigzag state when grasped by the plurality of protrusions and recesses, so that, even if the pressurizing force of the tail yarn cutting member is small, it is possible to keep the yarn in the grasped state.
- the lower end portion of the tail yarn cutting member can be formed so as to constitute a part of the slope of an imaginary cone whose rotation center is the spindle and whose apex is situated above a plane including the outer periphery of the lower end portion and perpendicular to the spindle.
- an aligning means for securing coaxiality of the tail yarn cutting member with respect to the spindle base portion. Due to the action of the aligning means, the tail yarn cutting member is rotated coaxially with the spindle, so that oscillation is not easily generated during rotation, thus stabilizing the rotation even in the case of high speed rotation.
- the aligning means may be equipped with curved surfaces provided at opposing positions of the tail yarn cutting member and the spindle base portion, the curved surfaces constituting the slopes of imaginary cones whose rotation center is the spindle. Due to this construction, when the tail yarn cutting member, which has been detached from the spindle base portion and moved upwardly therefrom at the time of doffing, is lowered to be engaged with the spindle base portion again, the above-mentioned curved surfaces are engagedwith eachother, whereby alignment is effected such that the tail yarn cuttingmember is coaxial with the spindle.
- one may be formed of metal, and the other may be formed of resin.
- both are formed of metal
- the tail yarn cutting member is detached from the cop and is lowered (dropped) to grasp the yarn between the tail yarn cutting member and the spindle base portion
- the yarn extending from the spindle base portion to the traveler is cut, and automatic taking-up of yarn at the time of re-starting becomes impossible.
- By forming one of them of resin it is possible, even in the case of a thin yarn, to prevent the yarn from being cut at the end portion of the grasping portion due to the grasping impact.
- the spindle 1 is rotatably supported by a bolster 3 fixed to a spindle rail2, through the intermediation of a bearing 4.
- the spindle 1 is equipped with a blade portion 5 and a spindle shaft 6 firmly attached to the lower central portion of the blade portion 5, and the spindle shaft 6 is rotatably supported by the bolster 3 while being inserted into the bolster 3.
- the blade portion 5 is equipped with a blade 5a onto which a bobbin B is fitted, a spindle base portion 5b formed under the blade 5a and of a larger diameter than the blade 5a, and a belt wrapping portion 5c formed under the spindle base portion 5b.
- the blade portion 5 is formed of aluminum or an aluminum alloy except for the spindle base portion 5b, with the spindle base portion 5b, formed of resin, being fitted into the lower portion of the blade 5a for fixation.
- the spindle shaft 6 is insert-molded in the blade portion 5.
- a lock member e.g., a button tip 7 for locking the bobbin B so as to enable it to rotate integrally.
- a tail yarn cutting member 8 is provided so as to be capable of ascending and descending.
- the tail yarn cutting member 8 is equipped with a bobbin fitting portion 9 onto which a bobbin B is fitted and a cutter portion 10 provided below the bobbin fitting portion 9.
- the cutter portion 10 includes a separate annular cutter member 10a and is equipped with a plurality of lock protrusions 10b for fixing the cutter member 10a.
- the diameter of the forward end portion of the cutter member 10a is larger than the outer diameter of the lower end portion of the bobbin B.
- the bobbin fitting portion 9 is formed in a cylindrical configuration, and has on its inner side a recess 9a for accommodating a coil spring 11.
- the lower end portion of the tail yarn cutting member 8 is kept in contact with the spindle base portion 5b, making it possible to grasp tail yarn between the tail yarn cutting member 8 and the spindle base portion 5b.
- a collar 12 serving as a stopper is fixed to the blade 5a at a position where its lower portion is opposed to the upper end of the bobbin fitting portion 9 in a state in which the tail yarn cutting member 8 is in contact with the spindle base portion 5b.
- the outer diameter of the collar 12 is somewhat smaller than the inner diameter of the recess 9a, and the tail yarn cutting member 8 slides along the collar 12.
- the bobbin fitting portion 9 is formed such that its outer diameter gradually decreases toward its upper end.
- the coil spring 11 is accommodated in the recess 9a, with its lower end abutting the lower end of the recess 9a and its upper end abutting the lower end of the collar 12.
- the coil spring 11 constitutes a spring for constantly urging the tail yarn cutting member 8 toward the spindle base portion 5b. Further, the coil spring 11 is provided between the tail yarn cutting member 8 and the blade 5a and constitutes a regulatingmeans adapted to restrain, at the time of doffing, the ascent of the tail yarn cutting member 8 beyond the position where the tail yarn cutting member 8 is in contact with the spindle base portion 5b by a predetermined height or more.
- a plurality of radially extending protrusions 13a and 13b and recesses 14a and 14b that can be engaged with each other.
- the lower end portion of the tail yarn cutting member 8 and the upper end portion of the spindle base portion 5b are equipped with a plurality of teeth in mesh with each other.
- the configuration of the sections of the protrusions 13a and 13b and the recesses 14a and 14b perpendicular to the radial direction is a rectangular one. It is desirable that the height of the protrusions 13a and 13b and the depth of the recesses 14a and 14b be approximately 2 mm.
- the lower end portion of the tail yarn cutting member 8 is formed so as to constitute a part of the slope of an imaginary cone whose rotation center is the spindle 1 and whose apex is situated above a plane including the outer periphery of the above-mentioned lower end portion and perpendicular to the spindle 1.
- the upper end portion of the spindle base portion 5b is also formed so as to constitute a part of the slope of an imaginary cone whose rotation center is the spindle 1 and whose apex is situated above a plane including the outer periphery of the above-mentioned lower endportion andperpendicular to the spindle 1.
- End surfaces 15 on the blade 5a side of the protrusions 13b of the spindle base portion 5b are formed so as to be curved surfaces constituting the slope of a downwardly facing imaginary cone whose rotation center is the spindle 1.
- a wall 16 capable of abutting the end surfaces 15 and having a curved surface 16a forming the slope of an imaginary cone whose rotation center is the spindle.
- the end surfaces 15 and the wall 16 constitute an aligning means for securing coaxiality of the tail yarn cutting member 8 with respect to the spindle base portion 5b.
- an annular groove 9b In the lower outer peripheral surface of the bobbin fitting portion 9, there is formed an annular groove 9b, in which a rubber ring 17 is accommodated so as to partially protrude from the groove 9b.
- the rubber ring 17 constitutes a fitting force enhancing means for enhancing the force with which the bobbin fitting portion 9 is fit-engaged with the bobbin B.
- the lower portion of the bobbin B is fitted onto the bobbin fitting portion 9 of the tail yarn cutting member 8, and is attached to the spindle 1 so as to be capable of integral rotation, with the upper portion thereof being engaged with the lock member 7. And, the spindle 1 is rotated through a belt (not shown) held in press contact with the belt wrapping portion 5c, the bobbin B rotating integrally with the spindle 1.
- braking is effected to stop the spindle 1 so as to attain a state in which approximately one roll of yarn is wound at a position somewhat below the contact portion where the tail yarn cutting member 8 and the spindle base portion 5b are in contact with each other.
- the lappet 2 is then arranged at a retracted position where it does not interfere with the doffing operation, thereby attaining the state as shown in Fig. 4A .
- the cop (full bobbin) 19 is pulled up by the doffing device 22.
- the tail yarn cutting member 8 is raised together with the cop 19 halfway through the pulling up, and the yarn Y connected from the cop 19 to the traveler 20 is guided to a position between the tail yarn cutting member 8 and the spindle base portion 5b.
- the yarn Y wound around the spindle base portion 5b moves along the outer surface of the blade 5a.
- the tail yarn cutting member 8 ascending together with the cop 19 reaches a predetermined height, the tail yarn cutting member 8 is detached from the cop 19 due to the urging force of the coil spring 11. Then, the tail yarn cutting member 8 descends to the position where it abuts the spindle base portion 5b, and the yarn Y connected from the cop 19 to the traveler 20 is grasped between the tail yarn cutting member 8 and the spindle base portion 5b. Since the cop 19 continues to ascend, the yarn Y is brought into press contact with the edge member 10a in a tense state, and is thereby cut, resulting in the state as shown in Fig. 4C .
- the tail yarn cutting member 8 falls instantaneously to the position where it abuts the spindle base portion 5b after being detached from the cop 19, so that the yarn Y is grasped between the tail yarn cutting member 8 and the spindle base portion 5b.
- Fig. 3 is a schematic partial development showing how the yarn Y is grasped through engagement of the tail yarn cutting member 8 and the spindle base portion 5b.
- the yarn Y is in a zigzag state while it is being grasped between the plurality of protrusions 13a and 13b and recesses 14a and 14b provided on the tail yarn cutting member 8 and the spindle base portion 5b. Since the height of the protrusions 13a and 13b and the depth of the recesses 14a and 14b are approximately 2 mm, even a thin yarn can be grasped without being cut. While Fig.
- FIG. 3 depicts the components as if there were gaps between the yarn Y, the protrusions 13a and 13b, and recesses 14a and 14b so as to facilitate the understanding of the relationship among the yarn Y, the protrusions 13a and 13b, and recesses 14a and 14b, the yarn Y is actually held between the protrusions 13a and 13b, and recesses 14a and 14b.
- the aligning means is not restricted to the combination of the wall 16, which is provided on the tail yarn cutting member 8 side and equipped with the curved surface 16a constituting the slope of an imaginary cone whose rotation center is the spindle, and the end surfaces 15 of the protrusions 13b on the spindle base portion 5b side.
- the wall 16 which is provided on the tail yarn cutting member 8 side and equipped with the curved surface 16a constituting the slope of an imaginary cone whose rotation center is the spindle
- the end surfaces 15 of the protrusions 13b on the spindle base portion 5b side for example, as shown in Fig. 5 , in the outer periphery of the recesses 14b formed in the spindle base portion 5b, there is formed a wall 23 having curved surfaces 23a constituting the slope of a downwardly directed imaginary cone whose rotation center is the spindle 1. And, the outer peripheral side end surfaces of the protrusions 13a of the tail yarn cutting member 8 are formed so as to be capable of abutting the curved surfaces 23
- the aligning means prefferably has a function to arrange the tail yarn cuttingmember 8 coaxiallywith the spindle base portion 5b when the tail yarn cutting member 8 has been raised to a position where it is detached from the spindle base portion 5b, and then descends to the position where it is engaged with the spindle base portion 5b, and there is no need to provide a portion constituting the slope of an imaginary cone whose rotation center is the spindle 1.
- protrusions or recesses in the bottom surfaces of the recesses 14a and 14b, providing the protrusions 13a and 13b with recesses or protrusions to be fit-engaged with those protrusions or recesses.
- the configuration of the sections of the protrusions 13a and 13b and the recesses 14a and 14b perpendicular to the radial direction is not restricted to the rectangular one; it may also be a triangular or some other configuration.
- the protrusions 13a and 13b and the recesses 14a and 14b do not necessarily extend in the radial direction (radially); they may also extend, for example, so as to be parallel to each other.
- the protrusions 13a and 13b and the recesses 14a and 14b may also constitute an annular structure whose center is the spindle 1. In this case, by tapering the forward ends of the protrusions 13a and 13b and the opening ends of the recesses 14a and 14b so as to increase in width on the end side, they can also serve as an aligning means.
- spindle base portion 5b of metal It is possible to form the spindle base portion 5b of metal, and to form the tail yarn cutting member 8 of resin except for the edge member 10a. In this case also, it is possible to prevent the yarn Y from being cut when grasped even if it is thin. Further, it is also possible to form both the spindle base portion 5b and the tail yarn cutting member 8 of metal.
- a magnet as an urging means for urging the tail yarn cutting member 8 toward the spindle base portion 5b in the state in which the tail yarn cutting member 8 and the spindle base portion 5b are in contact with each other.
- a magnet is embedded in the upper surface of the spindle base portion 5b, and a magnetic material (e.g., iron) is fixed to the lower surface of the bottom portion of the tail yarn cutting member 8.
- a magnet on either side of the spindle base portion 5b and the tail yarn cutting member 8, or provide a magnet on the tail yarn cutting member 8 side and a magnetic material on the spindle base portion 5b side.
- a retaining ring or a pin as a stopper is fixed to a predetermined position on the blade 5a as a regulating means for regulating the ascent of the tail yarn cutting member 8.
- the tail yarn cutting member 8 abuts the retaining ring or the pin during its ascent together with the cop 19, whereby it is detached from the cop 19.
- an axially extending guide groove is formed in the inner peripheral surface or an axially extending slit is formed.
- the blade 5a is provided with an engagement protrusion (e.g., a pin) adapted to be engaged with the guide groove or the slit. In this case, after being detached from the cop 19, the tail yarn cuttingmember 8 is reliably lowered straight.
- the end surfaces of the protrusions 13a and 13b and the bottom surfaces of the recesses 14a and 14b are not necessarily inclined outwardly and downwardly; they may also be horizontal. However, when a force to pull out the grasped yarn Y is applied, the resistance to the pulling-out of the yarn is larger in the case of the downwardly inclined configuration, making it harder for the yarn to be pulled out.
- the fitting force enhancing means is not restricted to the rubber ring 17; it may also be a plate-like or linear spring material.
- the spring material is not restricted to a completely ring-like one; it is also possible to adopt a spring in the form of a partially cut-out ring. Further, it is also possible to accommodate a spring member in a recess formed in the outer surface of the bobbin fitting portion 9 such that its arcuate portion protrudes. It is also possible to provide a button urged by a spring.
- the cutter portion 10 is not restricted to the construction in which the separate edge member 10a is fixedbythe lock protrusion 10b; it is also possible to form the edge portion integrally on the tail yarn cutting member 8.
- the outer configuration of the edge portion is not restricted to the circular one; it may also be of a saw-tooth-like configuration.
- the outer diameter of the cutter portion 10 may be smaller than the outer diameter of the bottom portion of the bobbin B. In this case, there is no fear of the yarn Y connected from cop 19 to the traveler 20 during doffing being cut before being grasped between the tail yarn cutting member 8 and the spindle base portion 5b.
- the drive system for the spindle 1 is not restricted to belt drive; it is also possible to adopt a so-called single-spindle-drive system in which a motor is provided for each spindle.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Coiling Of Filamentary Materials In General (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003134870A JP4007249B2 (ja) | 2003-05-13 | 2003-05-13 | 紡機における尻糸切断装置 |
JP2003134870 | 2003-05-13 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1477597A2 EP1477597A2 (en) | 2004-11-17 |
EP1477597A3 EP1477597A3 (en) | 2005-11-09 |
EP1477597B1 true EP1477597B1 (en) | 2012-12-26 |
Family
ID=33028348
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04009106A Expired - Lifetime EP1477597B1 (en) | 2003-05-13 | 2004-04-16 | Tail yarn cutting device for spinning machine |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1477597B1 (zh) |
JP (1) | JP4007249B2 (zh) |
KR (1) | KR100610142B1 (zh) |
CN (1) | CN100537861C (zh) |
TW (1) | TWI242059B (zh) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007303037A (ja) * | 2006-05-12 | 2007-11-22 | Toyota Industries Corp | 紡機における尻糸把持装置 |
DE502008003009D1 (de) * | 2008-06-12 | 2011-05-12 | Rieter Ag Maschf | Einrichtung zum Schutz der Kanten von Separatoren einer Ringspinnmaschine und Ringspinnmaschine |
CN102102250B (zh) * | 2009-12-22 | 2013-09-25 | 千田机电有限公司 | 一种细纱机用锭子切纱器 |
CN103547717B (zh) * | 2011-04-07 | 2016-01-20 | 平特凯珀公司 | 用于在落纱之前将线固定在锭子上的设备 |
CN102704060B (zh) * | 2012-06-11 | 2014-07-30 | 经纬纺织机械股份有限公司 | 环锭细纱机光杆锭子夹纱式留尾纱装置 |
CN103422202B (zh) * | 2013-08-08 | 2016-01-06 | 经纬纺织机械股份有限公司 | 一种用于细纱机光杆锭子的带有割纱刀片的储纱盘装置 |
CN104085743A (zh) * | 2014-06-11 | 2014-10-08 | 吴江龙升纺织有限公司 | 一种纺织卷筒 |
CN105401271A (zh) * | 2015-10-27 | 2016-03-16 | 衡阳纺织机械有限公司 | 可更换割纱器刀片铝杆锭子的刀片更换方法 |
CN110004534B (zh) * | 2019-05-24 | 2023-11-10 | 浙江锦马自动化科技有限公司 | 一种用于微型管道内的剪刀 |
CN118561107A (zh) * | 2024-08-02 | 2024-08-30 | 湖南科创纺织股份有限公司 | 粗纱尾纱智能收集打包设备 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITMI980853A1 (it) | 1997-05-06 | 1999-10-22 | Rieter Ag Maschf | Dispositivo di filatura |
DE19755971B4 (de) * | 1997-05-06 | 2007-01-04 | Maschinenfabrik Rieter Ag | Spinnvorrichtung |
EP0949366B1 (de) * | 1998-04-09 | 2003-05-07 | Zinser Textilmaschinen GmbH | Vorrichtung zum Klemmen eines Unterwindefadens an der Spindel einer Ringspinnmaschine oder Ringzwirnmaschine |
JP4284863B2 (ja) | 2000-12-07 | 2009-06-24 | 株式会社豊田自動織機 | 紡機における尻糸切断方法及び尻糸切断装置 |
-
2003
- 2003-05-13 JP JP2003134870A patent/JP4007249B2/ja not_active Expired - Fee Related
-
2004
- 2004-01-09 KR KR1020040001545A patent/KR100610142B1/ko not_active IP Right Cessation
- 2004-03-30 TW TW093108600A patent/TWI242059B/zh active
- 2004-04-16 EP EP04009106A patent/EP1477597B1/en not_active Expired - Lifetime
- 2004-05-13 CN CNB2004100431795A patent/CN100537861C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN1550583A (zh) | 2004-12-01 |
CN100537861C (zh) | 2009-09-09 |
TWI242059B (en) | 2005-10-21 |
KR20040098503A (ko) | 2004-11-20 |
JP2004339620A (ja) | 2004-12-02 |
EP1477597A3 (en) | 2005-11-09 |
KR100610142B1 (ko) | 2006-08-09 |
EP1477597A2 (en) | 2004-11-17 |
JP4007249B2 (ja) | 2007-11-14 |
TW200424377A (en) | 2004-11-16 |
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