CN100537861C - The tail yarn shearing device that is used for spinning machine - Google Patents
The tail yarn shearing device that is used for spinning machine Download PDFInfo
- Publication number
- CN100537861C CN100537861C CNB2004100431795A CN200410043179A CN100537861C CN 100537861 C CN100537861 C CN 100537861C CN B2004100431795 A CNB2004100431795 A CN B2004100431795A CN 200410043179 A CN200410043179 A CN 200410043179A CN 100537861 C CN100537861 C CN 100537861C
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- Prior art keywords
- tail yarn
- spindle
- yarn
- cuts
- tail
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- 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
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- 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
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- 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
Abstract
Disclose a kind of tail yarn shearing device that is used for spinning machine, wherein the tail yarn cuts off member and is arranged on the spindle blade so that can rise and descend, wherein by helical spring to spindle bottom compressing tail yarn cut-out member.The tail yarn cuts off member and the spindle bottom is provided with a plurality of protuberances that can be bonded with each other and recess.A circle or still less the yarn of circle be lower than slightly on the position that the tail yarn cuts off the part that member and spindle bottom be in contact with one another and reeling, cop is extracted by doffing device, and the tail yarn cuts off member and cop lifts together during extracting, and the yarn that is connected to steel traveler from cop is directed to the tail yarn and cuts off position between member and the spindle bottom.After this, the tail yarn that yarn remains on and cop is thrown off cuts off between member and the spindle bottom, and partly cuts off yarn by cutter.
Description
Technical field
The present invention relates to a kind of tail yarn shearing device.More especially, the present invention relates to a kind of tail yarn shearing device that is used for spinning machine, wherein the bobbin of sky is installed to and realizes batching of yarn when restarting machine after the spindle of cop being extracted from it by doffing device automatically.
Background technology
In the spinning machine of for example ring spinner or ring doubling frame, wherein yarn batches by steel traveler, in order under the full packages state, to carry out the bobbin change operation automatically, the yarn that need be connected on the roller part is connected in by steel traveler on the spindle, makes that yarn can automatically batch on bare bobbin when restarting machine after change of bobbins more.In order to address this need, in the spindle bottom tail yarn cut-off parts to be set traditionally, and below the spindle bottom, tail yarn winding part to be set; When obtaining the full packages state, ring rail descends suddenly so that the coiling that tilts (tubular coiling), and then yarn is reeled around tail yarn winding part, is connected to the yarn (tail yarn) of full packages yarn by the cut-out of tail yarn cut-off parts from tail yarn winding part when the full packages yarn is extracted.
But in this cutting-off method, after doffing, the tail yarn of partly reeling around the tail yarn keeps on it, and when doffing repetition, residual amount of thread increases, and makes and need often carry out the processing of residual yarn.In addition, because tail yarn coiling length is very big, residual yarn is difficult to remove.
In order to solve the described problem of prior art, ((paragraph [0013] is to [0018] for example to see JP 10-317233A to have proposed a kind of tail yarn cutting-off method, (paragraph [0021] is to [0028] for Fig. 1-4 and Fig. 7 and Japanese 2002-173837A, Fig. 1-3), wherein the yarn that is connected on the cop from steel traveler is kept by retaining part that can opened/closed, and wherein is connected to the operation that the yarn on the cop extracts cop by doffing device from retaining part and is cut off by cutter.
JP 10-317233A discloses a kind of device, wherein the tail yarn by be fixed on the spindle the underwinding flange be arranged in wharve on the sliding sleeve of vertical slip keep, spindle is installed in the wharve so that fixing.Shown in the application Fig. 6 and 7, in this device, underwinding flange 52 is fixed on the lower part of bobbin mounting portion 51 of spindle 50, and a plurality of upwardly extending protuberance 53 of axle at spindle 50 is arranged on below the underwinding flange 52.On the wharve 54 of spindle 50, sliding sleeve 55 is set so that can vertically slide, simultaneously by protuberance 53 guiding, and sleeve 55 makes its upper end can abut the lower surface of underwinding flange 52 by 56 compressings of compression spring.Blade 57 is arranged on below the underwinding flange 52 and in the outside of sleeve 55.
In this device, when ring rail 58 dropped to tail yarn winding position during doffing, the backstop 58a of the downward sensing of ring rail 58 abutted the baffle ring 55a of sleeve 55, then, along with ring rail 58 descends, the compressing power that sleeve 55 and ring rail 58 are resisted compression spring 56 together descends.As shown in Figure 6, under ring rail 58 is arranged in state on the tail yarn winding position, be connected between the upper end that yarns Y on the cop 60 is placed on the lower surface of underwinding flange 52 and sleeve 55 by steel traveler 59.In this case, ring rail 58 rises once more till its position of doffing stops, and the tail yarn remains between the upper end of the lower surface of underwinding flange 52 and sleeve 55 thus, wherein a circle or still less the yarn of circle reel around spindle 50.In this case, cop 60 doffs, and during doffing, the yarns Y that is connected on the cop 60 is cut off by blade 57.According to this disclosure, blade 57 can also be set, and during doffing, will be connected on the edge that yarns Y on the cop 60 presses underwinding flange 52 so that the tear fracture yarns Y.For example, also disclose a kind of structure, wherein on the lower surface of underwinding flange 52 breach is set, wherein a breach that engages with described breach is arranged on the upper end of sleeve 55.
JP 2002-173837 A discloses a kind of method, wherein shown in Figure 8 as the application, cut off member 61 from the spindle bottom upwardly extending spindle blade 50b of 50a the tail yarn being set, it is equipped with bobbin mounting portion 61a and cutter part 61b so that can rise and descend.The tail yarn cuts off member 61 and passes through helical spring 62 to the constant compressing of spindle bottom 50a.At the interval that doffs, ring rail stops at the tail yarn and cuts off near the contact portion that member 61 and spindle bottom 50a be in contact with one another.And spindle 50 stops, and wherein a yarn that encloses or still less enclose is reeled on the position that is lower than the contact bit position slightly.Then, cop pulls up by doffing device, and the tail yarn cuts off member 61 and cop lifts together during extracting, and the yarn that is connected to steel traveler from cop is directed to the tail yarn and cuts off position between member 61 and the spindle bottom 50a.After this tail yarn that yarn remains on and cop is thrown off cuts off between member 61 and the spindle bottom 50a, and yarn cuts off by cutter part 61b.
In JP 10-317233 A and the described tail yarn of JP 2002-173837 A cutting-off method, can by a circle or still less the coiling of loop yarn line keep the tail yarn.But in the device that JP 10-317233A discloses, combining the compression spring 56 that keeps sleeve 55 with underwinding flange 52 is indispensable (making its upper end abut the lower surface of underwinding flange 52).Compression spring 56 need promote the lower surface that sleeve 55 presses pipe bottom flange 52 with the weight of required confining force opposing sleeve 55.Thus, compression spring 56 must have greater than the spring force that keeps required compressing power.
Generally speaking, in ring spinner, have about 200 spindles, and under the situation of lead aircraft frame, have 400 or more spindle in a side.Thus, need to reduce the compressing power of a large amount of compression of ring rail 58 opposings spring 56, thereby need big energy to be used for reducing ring rail.In addition, realize passively in the structure of ring rail reduction, make it be reduced to predetermined tail yarn winding position quite difficultly in weight by ring rail.In addition, stop at the control operation relative complex that carry out the time-out position of doffing up to ring rail 58.
On the other hand, in the described method of JP 2002-173837 A, doffing operation by doffing device, tail yarn cut-out member 61 and cop are moved to the off-position from the holding position together, and only need ring rail to be reduced to doff to suspend the position, make and to compare, reduce control easilier for ring rail with the method for JP10-317233 A.The tail yarn cuts off member 61 and keep yarn between the upper surface of horizontal surface and spindle bottom 50a under it, if make that the pressure of tail yarn cut-out member 61 is very little, can appear at and yarn is installed when beginning to batch after the bare bobbin is pulled out retaining part, make and to batch.If increase the confining force of tail yarn shut-off mechanism 61, the weight that the tail yarn cuts off member 61 itself increase, and perhaps the compressing power of helical spring 62 increases, this will with the operation interference of doffing device.
Summary of the invention
Consider that the described problem of prior art makes the present invention, the object of the present invention is to provide a kind of tail yarn shearing device that is used for spinning machine, this device does not need the complex operations of ring rail at the interval that doffs, and make it can shorten the yarn (tail yarn) that remains on the spindle bottom, and not with the operation interference of doffing device.
According to the present invention, a kind of tail yarn shearing device that is used for spinning machine is provided, wherein be installed at the bobbin of sky and batch yarn automatically when restarting spinning machine after doffing device is from the spindle of wherein extracting cop, this device comprises: from the upwardly extending spindle blade in spindle bottom; The tail yarn that is equipped with bobbin mounting portion and cutter part cuts off member, the bobbin mounting portion is arranged on the spindle blade so that can rise and descend, and bobbin is installed on it, cutter partly is arranged on below the bobbin mounting portion, the tail yarn cuts off member contacts its end portion consistently with the spindle bottom, keep the tail yarn so that can cut off between member and the spindle bottom at the tail yarn; A plurality ofly be arranged on end portion that the tail yarn cuts off member and cut off on the upper part of the relative spindle bottom of the end portion of member and the protuberance and the recess that can be bonded with each other with the tail yarn; Be arranged on the adjusting device that the tail yarn cuts off between member and the spindle blade and is applicable to restriction tail yarn cut-out member rising predetermined altitude, this highly surpasses, and the tail yarn cuts off member and spindle bottom position contacting during doffing; Cut off the alignment device of member with respect to the coaxial fixedly tail yarn in spindle bottom.
In the present invention, bobbin is installed on the spindle, and its underpart is installed on the bobbin mounting portion of tail yarn cut-out member.At the interval that doffs, ring rail descends, and stops at following state, promptly is connected to the position of yarn by the contact portion that is not higher than tail yarn contact member and spindle bottom and is in contact with one another on the cop by steel traveler.Then, spindle stops, and wherein yarn cuts off on the position that member and spindle bottom be in contact with one another and reels not being higher than the tail yarn.Then, extract cop, and in withdrawal process, be connected to yarn on the steel traveler from cop and be directed to the tail yarn and cut off on the position between member and the spindle bottom by doffing device.After this, cut off the rising of member, and the tail yarn cuts off member and cop is thrown off and decline by adjusting device restriction tail yarn.Then, the tail yarn that described yarn remains on and cop is thrown off cuts off between member and the spindle bottom, and yarn is cut off device and partly cuts off.The end that is connected to the yarn on the steel traveler remains on the tail yarn and cuts off between member and the spindle bottom, till doffing next time.When doffing, the yarn and the cop that remain between tail yarn cut-out member and the spindle bottom are thrown off with spindle together next time.Because a plurality of protuberances and recess on a plurality of upper parts that are arranged on the lower end that the tail yarn cuts off member with the spindle bottom relative with described end portion, yarn is held simultaneously in bending, even the power that feasible tail yarn cut-out member presses the spindle bottom is very little, can not with the operation interference of doffing device, realize that reliably yarn keeps.Thus, do not need the operation of complicated ring rail, make it can shorten the yarn (tail yarn) that remains on the spindle bottom at the interval that doffs, and not with the operation interference of doffing device.
A plurality of protuberances and recess can form radially and extend.Therefore, yarn is in tortuous state when being kept by a plurality of protuberances and recess, even make that the pressure of tail yarn cut-out member is very little, also yarn can be remained under the hold mode.
The end portion that the tail yarn cuts off member can form a part that constitutes imaginary cone slope, and the center of rotation of cone is a spindle, and its top is positioned on the periphery and the plane perpendicular to spindle that comprises qualifying part.
When the masterpiece of pulling out yarn from retaining part was used on the yarn that spindle coiling one encloses or still less encloses, radially outward the masterpiece of Zhi Xianging was used on the yarn.In this process, as situation of the present invention, keep the surface downward-sloping, to compare with the situation that in horizontal plane, realizes the maintenance of yarn, the resistance that yarn acts on the yarn is bigger, makes it more be difficult to yarn is pulled out.Therefore, be that the situation of level is compared with keeping the plane, the tail yarn cuts off member and keeps the pressure of yarn yarn can be littler.
Preferably, alignment device being set fixes with respect to the spindle bottom is coaxial so that the tail yarn is cut off member.Because the effect of alignment device, tail yarn are cut off member with the spindle coaxial rotation, make during turning to be not easy to occur vibration, even therefore under the situation of high speed rotating, but also stable rotation.
Alignment device can be equipped with curved surface, and this surface is arranged on the tail yarn and cuts off on the member position relative with the spindle bottom, and curved surface constitutes the slope of imaginary cone, and the center of rotation of cone is a spindle.Because this structure, during doffing, to have thrown off and the tail yarn that therefrom moved upward cuts off that member reduces so that when engaging with the spindle bottom once more with spindle bottom, described curved surface is bonded with each other, and realizes thus aiming at, and makes that tail yarn cut-out member is coaxial with spindle.
One bottom the spindle and in the part of the tail yarn cut-out member that engages with the spindle bottom can be formed by metal, and wherein another formed by resin.Under the situation that both are formed by metal, when cutting off member and cop disengagement and descend (reduction), the tail yarn cuts off between member and the spindle bottom so that yarn is remained on the tail yarn, what worried is under the situation of tissue of threads because by the impact of retaining part effect, yarn cuts off in the end of retaining part.In this case, the yarn that extends on the steel traveler from the spindle bottom is cut off, and can carry out yarn and batch automatically when restarting.By formed in them by resin, even under the situation of tissue of threads, the yarn that can prevent to cause owing to the maintenance impulsive force is in the cut phenomenon in the end of retaining part.
Description of drawings
Figure 1A is according to the diagrammatic side view of the spindle of embodiments of the invention (part is a section form);
Figure 1B represents how the sectional view that cuts off member according to the tail yarn of the embodiment of the invention is installed;
Fig. 2 is the perspective illustration that the tail yarn cuts off member and spindle bottom;
Fig. 3 is the signal partial view how the expression yarn keeps;
Fig. 4 A-4D is the diagrammatic side view of the major part of operating during expression is doffed according to embodiments of the invention;
Fig. 5 is the perspective illustration of the spindle bottom of another embodiment of the present invention;
Fig. 6 and 7 is respectively the schematic section and the partial enlarged view of the major part of conventional apparatus; And
Fig. 8 is the sectional view of another conventional apparatus.
The specific embodiment
Referring now to Figure 1A-4D embodiments of the invention are described.
Shown in Figure 1A, spindle 1 is via acting on by being fixed on bolster 3 rotatably supports on the step rail 12 in the middle of the bearing 4.Spindle 1 is equipped with spindle blade part 5 and is connected spindle shaft 6 on the following mid portion of spindle blade part 5 securely, and spindle shaft 6 inserts in the bolster 3 simultaneously by bolster 3 rotatably supports.Spindle blade part 5 is equipped with spindle blade 5a that bobbin B is installed, be formed on below the spindle blade 5a and have greater than the spindle bottom 5b of the diameter of spindle blade 5a and be formed on tape wrapping part 5c below the 5b of spindle bottom.Except the 5b of spindle bottom, spindle blade part 5 is made by aluminum or aluminum alloy, and the spindle that is formed from a resin bottom 5b is installed on the lower part of spindle blade 5a so that fixing.Spindle shaft 6 is inserted into and is molded in the spindle blade part 5.On the top of spindle blade 5a, the locking component (for example button tip) 7 of locking bobbin B is set, so that make its unitary rotation.
The tail yarn that is provided with as the retaining member that can rise and descend on the spindle blade 5a that extends upward above spindle bottom 5b cuts off member 8.Shown in Figure 1B, the tail yarn cuts off member 8 and is equipped with the bobbin mounting portion 9 that bobbin B is installed on it and is arranged on cutter part 10 below the bobbin mounting portion 9.Cutter part 10 comprises annular cutter member 10a separately and is equipped with a plurality of locking protuberance 10b so that fixing cutter member 10a.In this embodiment, the diameter of the fore-end of cutter member 10a is greater than the overall diameter of the end portion of bobbin B.
Under the tail yarn cut off member 8 and situation that spindle bottom 5b contacts, the flange 12 that is used as backstop was fixed on the spindle blade 5a on the relative position in its underpart and bobbin mounting portion 9.The overall diameter of flange 12 is slightly less than the interior diameter of recess 9a, and the tail yarn cuts off member 8 and slides along flange 12.Bobbin mounting portion 9 forms its overall diameter is reduced gradually to its upper end.
As Figure 1B and shown in Figure 2, on the upper part of end portion that cuts off member 8 at the tail yarn and the spindle bottom 5b relative a plurality of protuberance 13a that radially extend and be bonded with each other and 13b and recess 14a and 14b are set with described lower part.Therefore, the upper part of the end portion of tail yarn cut-out member 8 and spindle bottom 5b is equipped with a plurality of intermeshing teeth.What wish is that the height of protuberance 13a and 13b and the degree of depth of recess 14a and 14b approximately are 2 millimeters.
The end portion that the tail yarn cuts off member 8 forms a part that constitutes imaginary cone slope, and the center of rotation of this cone is a spindle 1, and its top is positioned on the periphery and the plane perpendicular to spindle 1 that comprises described end portion.The upper part of spindle bottom 5b also forms the part on the slope that constitutes imaginary cone, and the center of rotation of this cone is a spindle 1, and its top is positioned on the periphery and the plane perpendicular to spindle 1 that comprises described end portion.
Form annular groove 9b on the following outer surface of bobbin mounting portion 9, rubber ring 17 holds wherein, so that part is outstanding from groove 9b.The installing force that rubber ring 17 constitutes increase power increases device, by this power bobbin mounting portion 9 and bobbin B is assembled together.
The operation of the tail yarn shearing device of structure as described then will be described.
The bottom of bobbin B is installed on the bobbin mounting portion 9 that the tail yarn cuts off member 8, and is connected on the spindle 1 so that can unitary rotation, and its top engages with locking component 7.And spindle 1 rotates bobbin B and spindle 1 unitary rotation via keeping pressing the band (not shown) that contacts with tape wrapping part 5c.
When the continuation spinning arrives full packages, be scheduled to shut-down operation, and then ring rail 18 tilts to reel (tubular coiling) 19a with the same way as decline suddenly of prior art so that form on the cop (full packages) 19 that is connected on the spindle 1.After this ring rail 18 stops at following state, and wherein the yarns Y that is connected to cop 19 via steel traveler 20 is cut off position below the contact portion that member 8 and spindle bottom 5b be in contact with one another by the tail yarn.Then, brake, so that stop spindle 1, thereby the yarn that obtains a circle roughly cuts off the state of reeling on the position of the contact portion that member 8 and spindle bottom 5b be in contact with one another being lower than the tail yarn slightly.Lappet 21 then be arranged in its not with the retracted position of interfering that doffs on, obtain the state shown in Fig. 4 A thus.
Then shown in Fig. 4 B, cop (full packages) 19 extracted by doffing device 22.The tail yarn cuts off member 8 and cop 19 lifts together during extracting, and is directed to the tail yarn from the yarns Y that cop 19 is connected to steel traveler 20 and cuts off on the position between member 8 and the spindle bottom 5b.Under the state shown in Fig. 4 A, when the tail yarn cuts off member 8 and cop 19 when lifting together, the yarns Y of reeling around spindle bottom 5b is moved along the outer surface of spindle blade 5a.
When the tail yarn cuts off member 8 and cop 19 when arriving predetermined altitude together, because the compressing power of helical spring 11, the tail yarn cuts off member 8 and throws off with cop 19.Then, the tail yarn cuts off member 8 and drops on its position that abuts spindle bottom 5b, and remains on the tail yarn from the yarns Y that cop 19 is connected to steel traveler 20 and cut off between member 8 and the spindle bottom 5b.Because cop 19 continues to rise, yarns Y contacts with edge member 10a pressure under tension state, and cuts off thus, causes the state shown in Fig. 4 C.Even and the cop 19 tail yarn of throwing off cut off between member 8 decrement phases, tail yarn Y is cut off by edge member 10a, after throwing off with cop 19, the tail yarn cuts off member 8 and drops on its position that abuts spindle bottom 5b, makes tail yarn Y remain on the tail yarn and cuts off between member 8 and the spindle bottom 5b at once.
Fig. 3 is the signal partial view that the joint that how cuts off member 8 and spindle bottom 5b via the tail yarn keeps yarns Y.Yarns Y remains on to be arranged at it and is in tortuous state when the tail yarn cuts off between a plurality of protuberance 13a on member 8 and the spindle bottom 5b and 13b and recess 14a and the 14b.Because protuberance 13a and the height of 13b and the degree of depth of recess 14a and 14b approximately are 2 millimeters, even thin yarn can keep and not cut off.As if Fig. 3 represents that these parts have the gap to help to understand the relation between yarns Y, protuberance 13a and 13b and recess 14a and the 14b between yarns Y, protuberance 13a and 13b and recess 14a and the 14b simultaneously, and in fact yarns Y remains between protuberance 13a and 13b and 14a and the 14b.
When cop 19 through doffing, and then obtain the state of Fig. 4 D, empty bobbin B is installed on the spindle 1, and lappet 21 turns to and batch the position, and then restarts frame.The end that is connected to the yarns Y on the steel traveler 20 remains on the tail yarn and cuts off between member 8 and the spindle bottom 5b, till doffing next time.When doffing, the tail yarn that remains between tail yarn cut-out member 8 and the spindle bottom 5b is connected on the cop 19, and throws off with spindle 1 next time.
This embodiment provides following advantage:
(1) the tail yarn cut-out member 8 that is equipped with cutter part 10 rises with cop 19 when doffing, and then descend, the yarns Y that is connected to steel traveler 20 from cop 19 remains on the tail yarn and cuts off between member 8 and the spindle bottom 5b thus, and cuts off by cutter part 10.Therefore reel so that the conventional apparatus of Bao Chiing is compared thus around spindle 1 with tail yarn wherein, do not need the tail yarn of repeatedly reeling, make it can reduce the upward quantity of residual yarn (tail yarn) of spindle bottom 5b.In addition, the tail yarn that remains between tail yarn cut-out member 8 and the spindle bottom 5b is connected on the cop 19 when doffing next time, and throws off with spindle 1, makes that not needing to carry out the removal of tail yarn operates.
(2) yarns Y remains under the following state, and wherein it is by a plurality of protuberance 13a and 13b and recess 14a and the 14b bendings of radially extending on the upper part of the end portion that is arranged on the tail yarn and cuts off member 8 and the spindle bottom 5b relative with described end portion.Therefore, even it is very little that the tail yarn cuts off the power that member 8 presses to spindle bottom 5b, and can not with the operation interference of doffing device 22, the complex operations that does not also need ring rail 18 at the interval that doffs, and can shorten the yarn (tail yarn) that remains on the 5b of spindle bottom, and not with the operation interference of doffing device 22.
(3) basal surface of the lower surface of the protuberance 13a of the end portion of formation tail yarn cut-out member 8 and recess 14a forms the part on the slope that constitutes imaginary cone, the center of rotation of cone is a spindle 1, and its top is positioned on the periphery and the plane perpendicular to spindle 1 that comprises end portion.When the masterpiece of pulling out yarn from retaining part was used on the yarns Y that spindle 1 coiling one encloses or still less encloses, radially outward the masterpiece of Zhi Xianging was used on the yarns Y.In this case, when the basal surface of lower surface that constitutes the protuberance 13a that keeps the surface and recess 14a is downward-sloping, on the edge of protuberance 13a and recess 14a, act on resistance on the yarns Y greater than the situation that realizes the maintenance of yarns Y at horizontal plane, and yarn is not easy to pull out.Therefore, be that the situation of level is compared with keeping the plane, being used to keep the tail yarn of yarns Y to cut off the required pressure of member 8 can be littler.
(4) fixing coaxially for the tail yarn being cut off member 8 with respect to spindle bottom 5b, alignment device is set.Therefore, because the effect of alignment device, the tail yarn cuts off member 8 with spindle 1 coaxial rotation, makes to be not easy vibration to occur in rotation process, even also can realize stable rotation under the situation of high speed rotating.
(5) alignment device is arranged on the relative position of tail yarn cut-out member 8 and spindle bottom 5b, and is equipped with end surfaces 15 and curved surface 16a, and it constitutes the slope of imaginary cone, and the center of prosthese is a spindle 1.Therefore, the locational tail yarn of having thrown off with spindle bottom 5b when doffing and having moved to 5b top, spindle bottom cuts off that member 8 descends so that engage once more with spindle bottom 5b, end surfaces 15 and curved surface 16a are bonded with each other, realize thus aiming at, make tail yarn cut-out member 8 become and aim at spindle 1.In addition, do not need to leave special space for alignment device is set.
(6) spindle bottom 5b is formed by resin, and the part of the tail yarn cut-out member 8 that engages with spindle bottom 5b is made of metal.If spindle bottom 5b and tail yarn cut off member 8 and all be made of metal, the tail yarn cuts off member 8 and cop 19 disengagements and descends; Under the situation of tissue of threads, when yarns Y remains between the 5b of retaining part and spindle bottom because from the impact of retaining part effect, worry be that the end that yarns Y is held part cuts off.But,,, also can prevent because the yarns Y that keeps impulsive force to cause is held the phenomenon that the end of part cuts off even under the situation of tissue of threads because spindle bottom 5b is formed from a resin.
(7) pass through helical spring 11 towards the constant pressurized of spindle bottom 5b because the tail yarn cuts off member 8,, also can remain connected to the yarns Y on the steel traveler reliably even tail yarn cut-out member 8 is in light weight.In addition, when throw off with bobbin B bobbin mounting portion 9, because helical spring 11 causes the tail yarn to cut off member 8 downward pressurizeds, if cutting off between member 8 decrement phases at the tail yarn, yarns Y cuts off, the tail yarn cuts off member 8 and arrives the position that contacts and keep yarns Y with spindle bottom 5b fast.
(8) bobbin mounting portion 9 is equipped with and engaging force increase device (rubber ring 17) is installed so that increase and the required power of bobbin B engage.Therefore, the tail yarn cuts off the compressing power that member can resist helical spring 11 and rises to predetermined altitude together with cop 19 reliably.
Above-described embodiment should not be considered as has limitation.For example, the present invention also can carry out following modification:
Alignment device is in the combination that is not limited to wall 16, and it is arranged on the curved surface 16a that the tail yarn cuts off on member 8 one sides and is equipped with the imaginary cone of formation, and the center of rotation of cone is a spindle, and the end surfaces 15 of protuberance 13b is positioned at spindle bottom 5b one side.For example, as shown in Figure 5, form the wall 23 with curved surface 23a on the periphery of the recess 14b in being formed on spindle bottom 5b, curved surface 23a constitutes the slope of the imaginary cone of pointing to downwards, and the center of rotation of cone is a spindle 1.And the outer circumferential side end surfaces that the tail yarn cuts off the protuberance 13a of member 8 forms the slope that can abut curved surface 23a and also constitute imaginary cone, and the center of rotation of cone is a spindle 1.
Alignment device only need have following function, promptly, the tail yarn tail yarn is cut off member 8 and spindle bottom 5b coaxial arrangement when having risen to the position of throwing off with spindle bottom 5b when cutting off member 8, and then drop to the position that engages with spindle bottom 5b, and do not need to be provided with the part on the slope that constitutes imaginary cone, the center of rotation of this cone is a spindle 1.For example, can also cut off the slope that a plurality of inclinations are set on the relative position on the 5b bottom member 8 and the spindle at the tail yarn.In addition, can also on the basal surface of recess 14a and 14b, form protuberance and recess in the part, as long as have protuberance 13a and 13b and those protuberances or the recess engage of recess or protuberance.
Be not limited to rectangle perpendicular to radially protuberance 13a and the cross-sectional configuration of 13b and recess 14a and 14b; Can also be triangle or some other configuration.
But protuberance 13a and 13b and recess 14a and 14b be the looping structure also, and its center is a spindle 1.In this case, by making the front end of protuberance 13a and 13b and the openend of recess 14a and 14b tilt so that one side increases width in the end, they also can be used as alignment device.
Can form spindle bottom 5b and form the tail yarn with metal and cut off member 8 (except edge member 10a) with resin.Equally in this case, can prevent that very thin yarns Y is cut off when being held.In addition, can also with metal form spindle bottom 5b and tail yarn cut off member 8 both.
Except spring, the tail yarn cuts off member 8 so that the [that tail yarn cut-out member 8 and spindle bottom 5b are in contact with one another as pressing towards spindle bottom 5b can also to use magnet.For example, magnet is embedded in the upper surface of spindle bottom 5b, and magnet material (for example iron) is fixed on the tail yarn and cuts off on the lower surface of bottom of member 8.Can also on the either side of spindle bottom 5b and tail yarn cut-out member 8, magnet be set, perhaps cut off member 8 one sides magnet is set, and magnetic material is set in spindle bottom 5b one side at the tail yarn.In this case, be fixed on the precalculated position of spindle blade 5a, to cut off the adjusting device that member 8 rises as regulating the tail yarn as the retaining ring or the pin of backstop.With cop between 19 rising stages, the tail yarn cuts off member 8 and abuts retaining ring or pin, throws off with cop 19 thus.
In the structure that helical spring 11 is not set,, form axially extended guide recess or form axially extended stria in interior perimeter surface except in bobbin mounting portion 9, forming the recess 9a.Simultaneously, spindle blade 5a is provided with and engages protuberance (for example pin), and it is applicable to guide recess or stria and engages.In this case, after throwing off with cop 19, the tail yarn cuts off member 8 straight line decline reliably.
The basal surface of the end surfaces of protuberance 13a and 13b and recess 14a and 14b does not outwards need and is downward-sloping; They are level also.But so that when pulling out the yarns Y of maintenance, the resistance of pulling out yarn is bigger in downward-sloping structure when power of effect, makes that yarn is more difficult to pull out.
Installing force increases device and is not limited to rubber ring 17; Can also be plate shape or Hookean spring material.Spring material is not limited to annular completely; Can also adopt the spring of partial cut-out form of springs.In addition, spring member can also be contained in the recess, recess is formed on the outer surface of bobbin mounting portion 9, and its arch section is stretched out.Button by the spring compressing can also be set.
The overall diameter of cutter part 10 can be less than the overall diameter of the bottom of bobbin B.In this case, do not worry that the yarns Y that is connected to steel traveler 20 from cop 19 is cut off during doffing and before remaining on tail yarn cut-out member 8 and spindle bottom 5b.
The drive system that is used for spindle 1 is not limited to belt drive; Can also adopt so-called single spindle drive system, wherein a motor is set for each spindle.
Claims (7)
1. tail yarn shearing device that is used for spinning machine wherein is installed at the bobbin of sky and batches yarn automatically when restarting spinning machine after doffing device is from the spindle of wherein extracting cop, and this device comprises:
From the upwardly extending spindle blade in spindle bottom;
The tail yarn that is equipped with bobbin mounting portion and cutter part cuts off member, the bobbin mounting portion is arranged on the spindle blade so that can rise and descend, and bobbin is installed on it, cutter partly is arranged on below the bobbin mounting portion, the tail yarn cuts off member contacts its end portion consistently with the spindle bottom, keep the tail yarn so that can cut off between member and the spindle bottom at the tail yarn;
Be arranged on the adjusting device that the tail yarn cuts off between member and the spindle blade and is applicable to restriction tail yarn cut-out member rising predetermined altitude, this highly surpasses, and the tail yarn cuts off member and spindle bottom position contacting during doffing;
It is characterized in that described tail yarn shearing device also comprises: a plurality ofly be arranged on end portion that the tail yarn cuts off member and cut off on the upper part of the relative spindle bottom of the end portion of member and the protuberance and the recess that can be bonded with each other with the tail yarn; Cut off the alignment device of member with respect to the coaxial fixedly tail yarn in spindle bottom.
2. tail yarn shearing device as claimed in claim 1 is characterized in that, a plurality of protuberances and recess form radially and extend.
3. tail yarn shearing device as claimed in claim 1, it is characterized in that, the end portion that the tail yarn cuts off member forms the part on the slope that constitutes imaginary cone, and the center of rotation of cone is a spindle, and its top is positioned at the periphery that comprises end portion and perpendicular to the top on the plane of spindle.
4. tail yarn shearing device as claimed in claim 1 is characterized in that, alignment device is equipped with the curved surface on the relative position that is arranged on tail yarn cut-out member and spindle bottom, and curved surface constitutes the slope of imaginary cone, and the center of rotation of cone is a spindle.
5. tail yarn shearing device as claimed in claim 1 is characterized in that, one in the part of spindle bottom and the tail yarn cut-out member that engages with the spindle bottom is made of metal, and another is formed from a resin.
6. tail yarn shearing device as claimed in claim 1 is characterized in that, it also comprises the helical spring that cuts off member towards spindle bottom compressing tail yarn.
7. tail yarn shearing device as claimed in claim 1 is characterized in that, the bobbin mounting portion that the tail yarn cuts off member is equipped with the rubber ring that increases with the required power of bobbin mounting portion engage.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP134870/03 | 2003-05-13 | ||
| JP2003134870A JP4007249B2 (en) | 2003-05-13 | 2003-05-13 | Bottom thread cutting device in spinning machine |
| JP134870/2003 | 2003-05-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1550583A CN1550583A (en) | 2004-12-01 |
| CN100537861C true CN100537861C (en) | 2009-09-09 |
Family
ID=33028348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100431795A Expired - Fee Related CN100537861C (en) | 2003-05-13 | 2004-05-13 | The tail yarn shearing device that is used for spinning machine |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1477597B1 (en) |
| JP (1) | JP4007249B2 (en) |
| KR (1) | KR100610142B1 (en) |
| CN (1) | CN100537861C (en) |
| TW (1) | TWI242059B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102102250A (en) * | 2009-12-22 | 2011-06-22 | 千田机电有限公司 | Spindle yarn cutter used for spinning frame |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007303037A (en) * | 2006-05-12 | 2007-11-22 | Toyota Industries Corp | End yarn holder in spinning machine |
| ATE503870T1 (en) * | 2008-06-12 | 2011-04-15 | Rieter Ag Maschf | DEVICE FOR PROTECTING THE EDGES OF SEPARATORS OF A RING SPINNING MACHINE AND RING SPINNING MACHINE |
| WO2012138245A1 (en) * | 2011-04-07 | 2012-10-11 | Kurkov Vladimir Vasilievich | Device for fixing a thread on a spindle before doffing |
| CN102704060B (en) * | 2012-06-11 | 2014-07-30 | 经纬纺织机械股份有限公司 | Polished rod spindle yarn gripping type tail yarn remaining device for ring spinning frame |
| CN103422202B (en) * | 2013-08-08 | 2016-01-06 | 经纬纺织机械股份有限公司 | A kind of yarn storage dish device with Yarn cutter sheet for fine spining machine polished rod spindle |
| CN104085743A (en) * | 2014-06-11 | 2014-10-08 | 吴江龙升纺织有限公司 | Spinning reel |
| CN105401271A (en) * | 2015-10-27 | 2016-03-16 | 衡阳纺织机械有限公司 | Blade changing method for aluminum rod spindle with replaceable yarn cutting device blade |
| CN110004534B (en) * | 2019-05-24 | 2023-11-10 | 浙江锦马自动化科技有限公司 | Scissors used in miniature pipeline |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITMI980853A1 (en) | 1997-05-06 | 1999-10-22 | Rieter Ag Maschf | SPINNING DEVICE |
| DE19755971B4 (en) * | 1997-05-06 | 2007-01-04 | Maschinenfabrik Rieter Ag | spinning device |
| EP0949366B1 (en) * | 1998-04-09 | 2003-05-07 | Zinser Textilmaschinen GmbH | Apparatus for clamping an underwound yarn wrap on the spindle of a ring spinning or ring twisting machine |
| JP4284863B2 (en) * | 2000-12-07 | 2009-06-24 | 株式会社豊田自動織機 | Bottom thread cutting method and bottom thread cutting device in spinning machine |
-
2003
- 2003-05-13 JP JP2003134870A patent/JP4007249B2/en not_active Expired - Fee Related
-
2004
- 2004-01-09 KR KR1020040001545A patent/KR100610142B1/en not_active IP Right Cessation
- 2004-03-30 TW TW093108600A patent/TWI242059B/en active
- 2004-04-16 EP EP04009106A patent/EP1477597B1/en not_active Expired - Lifetime
- 2004-05-13 CN CNB2004100431795A patent/CN100537861C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102102250A (en) * | 2009-12-22 | 2011-06-22 | 千田机电有限公司 | Spindle yarn cutter used for spinning frame |
| CN102102250B (en) * | 2009-12-22 | 2013-09-25 | 千田机电有限公司 | Spindle yarn cutter used for spinning frame |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100610142B1 (en) | 2006-08-09 |
| EP1477597B1 (en) | 2012-12-26 |
| EP1477597A3 (en) | 2005-11-09 |
| JP2004339620A (en) | 2004-12-02 |
| KR20040098503A (en) | 2004-11-20 |
| JP4007249B2 (en) | 2007-11-14 |
| TW200424377A (en) | 2004-11-16 |
| TWI242059B (en) | 2005-10-21 |
| CN1550583A (en) | 2004-12-01 |
| EP1477597A2 (en) | 2004-11-17 |
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