CN100462489C - Preventer for yarn cutting and yarn processing machine with yarn cutting preventive unit - Google Patents
Preventer for yarn cutting and yarn processing machine with yarn cutting preventive unit Download PDFInfo
- Publication number
- CN100462489C CN100462489C CNB031060528A CN03106052A CN100462489C CN 100462489 C CN100462489 C CN 100462489C CN B031060528 A CNB031060528 A CN B031060528A CN 03106052 A CN03106052 A CN 03106052A CN 100462489 C CN100462489 C CN 100462489C
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- Prior art keywords
- yarn
- tension force
- feeding
- tension
- releasing unit
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- 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
- D01H13/14—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements
- D01H13/20—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to excessive tension or irregular operation of apparatus
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/26—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre with characteristics dependent on the amount or direction of twist
- D02G3/28—Doubled, plied, or cabled threads
- D02G3/285—Doubled, plied, or cabled threads one yarn running over the feeding spool of another yarn
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- 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
- D01H13/10—Tension devices
- D01H13/108—Regulating tension by regulating speed of driving mechanisms of unwinding, paying-out, forwarding, winding or depositing devices, e.g. automatically in response to variations in tension
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Tension Adjustment In Filamentary Materials (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
- Guides For Winding Or Rewinding, Or Guides For Filamentary Materials (AREA)
Abstract
A thread breakage preventing apparatus includes a tension relieving unit disposed on a running path of a yarn and serving to positively feed the yarn to a downstream side in a feeding amount corresponding to a tension of the yarn when the tension exceeds a preset tension. A part of the tension relieving unit is a rotational roller to be rotated at a constant rotating speed and serves to instantaneously increase and decrease the feeding amount of the yarn based on a behavior of the yarn corresponding to an increase and decrease in the tension of the yarn.
Description
Background of invention
Technical field
The present invention relates to a kind of broken string prevent mean, this device can be applicable to various yarn strands and machine or the multiple machine that is used to make multiply yarn or manufactured goods, relate in particular to a kind of broken string prevent mean of breaking of can preventing effectively, such broken string is along with the raising meeting of the speed of manufacturing machine that is used to produce various single-strand yarn and various yarn treatment machines takes place continually.
Prior art
In recent years, the speed of the handling machine of the especially various single-strand yarn of this yarn and the growth of unmanned operation are very significant, for example, usually, two multiply yarns are called traditional yarn strand parallel operation strand of rope twisting machine and make sewing thread by use.Now, the weight that is applied to the spool of twisting machine is 3kg (length of yarn approximately is 180000m), and simultaneously, its size is also very huge.In the course of the work, the revolution of sth. made by twisting axle is no more than 9000 rev/mins.Carried out the revolution of twisting with the fingers axle is brought up to 11000 rev/mins trial, purpose is further to boost productivity by the large scale spool that uses identical type.
With reference to figure 5, strand and the mechanism that is used for traditional rope twisting machine will be narrated briefly.A large-sized yarn feeding spool 7 is twisted with the fingers on the axle 6 by coaxial being supported on, and in addition, the yarn feeding spool 1 of larger sized identical type is supported on the yarn creel that does not have among the figure to show.The first initial yarn Y1 that draws from the yarn feeding spool 1 of yarn creel is admitted to sth. made by twisting axle 6, then, is introduced to the outside, and is directed to winding part 10 by an air ring guiding device 8 that just in time is arranged on the sth. made by twisting axle 6.At this moment, the first initial yarn Y1 rotates around being supported on the yarn feeding spool of twisting with the fingers on the axle 67, and, when forming an air ring, be directed into an air ring guiding device 9.Aspect another one, directly take from the second initial yarn Y2 that is supported in the yarn feeding spool of twisting with the fingers on the axle 67 and also be directed into winding part 10 by air ring guiding device 9 simultaneously.Therefore, the first and second initial yarn Y1 and Y2 twist also in air ring guiding device 9 parts, and the Y3 of twine is wrapped in and twines on the part 10.
By a kind of yarn strand and machine with a kind of like this strand and mechanism, particularly, if be wrapped in first initial yarn on the yarn feeding spool that is supported on the yarn creel being one is even on whole length (approximately 180000m), under the situation of the yarn of high-quality, Tension Control can accomplish to have high accuracy.Perhaps, change if twist with the fingers the inside and outside structure Design of axle and peripheral accessory, even twist with the fingers axle with 9000 rev/mins or the higher high speed of determining rotation, strand also can not have specific obstruction ground to carry out yet.
But, still old shortcoming, promptly twisted owing to what produce in the process of yarn feeding in the yarn feeding guide of first initial yarn, high-quality yarn also is local villous, perhaps owing to reversing in the motion process of yarn forms pile.Because this reason, when the part of shortcoming was blocked in the guiding device on the yarn movement path once in a while, one huge tension force will produce between strand of the yarn on guiding device and its downstream and axle.Correspondingly, this tension force also can influence air ring, and the maximum gauge of air ring is littler and disturb around being sent to importing and the leading-out portion of twisting with the fingers first initial yarn on the axle and divide the peripheral unit that is equipped with than predefined admissible diameter.In this case, yarn can be when disturb taking place moment be cut off.This situation often takes place.
If this situation especially is easy to take place under first initial yarn is a kind of occasion of multifilament yarn.In addition, broken string can be because many former thereby produce in the moment that tension force increases.Therefore, as in usually known multiple tension-adjusting gear or control device, when detect tension force unusual after, control section is started working, still, too late.So broken string can not be prevented from all.Even high-quality yarn strand also, only rely on traditional control method or design variation can not avoid above-mentioned situation to take place.
Abstract of invention
The purpose of this invention is to provide a kind of broken string prevent mean, this device can as often as possible be got rid of the generation of above-mentioned situation so that carry out operation at a high speed, and, another purpose provides a kind of yarn strand and machine that becomes typical yarn treatment machine, in this machine, answer land used to use the broken string prevent mean effectively.
For having done a large amount of investigation and done many tests for the effective and efficient manner that achieves the above object.The result who draws is, the generation of broken string can prevent by the influence of avoiding first initial yarn to be introduced into after yarn strand and the axle unusual tension fluctuation thereon.Even this unusual tension force is because as above-mentioned producing in some middle defectives of the yarn feed mechanism of first initial yarn.
For be introduced into yarn strand and axle in first initial yarn after, prevent that unusual tension force from arriving first initial yarn, be preferably in then that first initial yarn is introduced the yarn strand and axle should discharge tension force before at once.But, just as in common tenslator, if the fluctuation that detects tension force then tension force be released again, broken string just may produce.For fear of producing broken string, according to the fluctuation of tension force, especially the tension force of Zeng Daing before introducing yarn strand and axle, always must discharge tension force earlier at once.
And, in order to discharge tension force, must at first between yarn feeding part and yarn strand and axle, determine a zone that produces tension fluctuation therein, therefore can determine a position that is equipped with tension release device.By the multiple conclusion that experiment drew be, the fluctuation that has been found that tension force is because the inhomogeneous of yarn caused, this inhomogeneous be to form the quality of yarn of pile shape because of fine hair, perhaps constituting the twisted of fiber with part serves as that cause on the basis, this inhomogeneous also be the inhomogeneous of yarn structure form for example by based on the twisted of the section shape that constitutes fiber of yarn or by yarn feed mechanism from yarn feeding part to yarn strand and axle, and the local coil ball of the yarn that produces.
Have been found that initial yarn on being wrapped in yarn feeding spool causes that because of quality of yarn inhomogeneous just producing the inconsistent part of planform that the such initial yarn of unusual tension force can be guided out yarn feeding spool or yarn glossily when tangling is stopped and can not untied entanglement by common derivation tension force by a guiding device that is configured in the middle of the yarn travel path.
Based on above result, under any situation, it is just enough on the yarn movement path from yarn feeding part to the introducing part of twisting with the fingers axle at least that the device that discharges tension force is set at.And tension release device preferably should be provided on downstream one side of the leader that is arranged on close yarn feeding part one side.Thereby even be used as tension release device by use traditional control device that instruction that for example traditional spring of a kind of simple tensioner or dancer roll or application responds transmit improves the rotating speed excess feeding yarn of feed rolls from the control section based on the detection signal of tension detector, but, huge tension fluctuation can not be absorbed fully, simultaneously, control device does not catch up with the propagation time that tension fluctuation propagates into the sth. made by twisting axle yet.
Therefore, tension release device is neither a tensioner that absorbs tension force as traditional tensioner or control device simply, neither be used for after finding out tension fluctuation, increasing the control device of yarn feeding, and must the novel fully tension release device of exploitation.As the result of further investigation, finally finished the present invention.
Especially special is, as described in the first embodiment of the present invention, the basic structure of broken string prevent mean, its characteristics are to comprise a broken string prevent mean, this device comprises a tension force releasing unit, this unit is arranged on the motion path of yarn, is used for an amount of feeding corresponding to yarn tension yarn positively being fed into downstream one side when tension force surpasses predefined tension force.
At the yarn treatment machine for example in the parallel operation of multiply yarn maker or yarn strand, usually, having one on the yarn of advancing between yarn feeding part and the processing section almost is the tension force of constant, and, trickle fluctuation is arranged because of the influence of the fluctuation of the dynamic friction of the vibrations of machine or ancillary equipment or moving yarn.But if there is not aforesaid any factor to disturb, the amount of fluctuation is very trickle.The fluctuation of tension force can be absorbed fully and be discharged by the spring tension device.
Absorb according to the tension force releasing unit in the broken string prevent mean of the present invention neither by the elastic force different and neither discharge the fluctuation of tension force, but be more suitable for being applied to such as on the bigger tension fluctuation of the trickle tension fluctuation that in stable status yarn under working feeding process, is produced of the above by this elastic force with the spring tension device.For example, a kind of handling machine such as the parallel operation of yarn strand in, this machine is used for producing air ring by the rotation of twisting with the fingers axle simultaneously to one on yarn is twisted, the diameter of air ring is decided by velocity of rotation, the weight of yarn and the tension force of yarn of twisting with the fingers axle.In order to determine the diameter of air ring in a predefined scope, the tension force that just must set the velocity of rotation of sth. made by twisting spool and yarn is so that make it that corresponding value be arranged under the situation of identical type yarn.
Usually, the speed of rotation is what to have set, and the tension range of yarn also has been set then, and regulates by spring tension device or ball tensioner from the tension force that the yarn feeding partly is applied to the yarn of yarn strand and axle.When the predefined tension force of the warp tension ratio of yarn is low, thereby the diameter of air ring just increases the pitch (installing space) that surpasses between adjacent shafts.Tension force can be relatively easily be adjusted to by tensioner and equates with predefined tension force or be higher than it.Aspect another one, when tension force surpassed predefined tension force, the diameter of air ring had just diminished.If diameter diminishes, the yarn of air ring is derived partly and will be contacted with peripheral apparatus so, and especially, the multifilament yarn can be cut off in moment.
For fear of this situation, as mentioned above when tension fluctuation produces, arrive the tension force that the yarn of twisting with the fingers axle just must discharge yarn before introducing part at tension fluctuation.Therefore, in releasing unit according to the present invention, when tension fluctuation surpasses a this situation of predefined tension force and takes place, with the amount of feeding yarn positively is fed into downstream one side by utilizing tension force corresponding to this tension fluctuation, and the difference on the generation time not.The result is, the tension fluctuation of yarn according to downstream one side of tension release device of the present invention by abrupt release.For example, be directed to the yarn of twisting with the fingers in the axle and keeping a tension force that is provided with usually, and do not influence the formation of air ring, simultaneously, keep a predefined air ring structure form.Therefore, just can twist reposefully and and can not produce broken string.
The second embodiment of the present invention is devoted to the prevent mean that breaks, wherein, the tension force releasing unit is a rotation roller with a constant rotary speed rotation, this rotation roller has that yarn feeding quantity increases and sloping portion to be used for the state corresponding to the yarn of the increase of the tension force of yarn and decline be the feeding quantity of basic moment increase and decline yarn.
When the tension force of yarn increased, yarn was tensioning.When tension force descended, yarn loosened.In the present invention, utilized state based on the tension fluctuation of yarn, be driven and the rotation roller that rotates with a constant velocity of rotation as the tension force releasing unit.In addition, the rotation roller comprises that yarn feeding quantity increases and sloping portion.For example, might use and a kind ofly be taken as that yarn feeding quantity increases and the elastomeric material that passes through of sloping portion has the external peripheral surface of roller and is used for amount that the pressure based on the tension fluctuation change yarn of yarn contacts and the spring of power.By changing contact pressure, the quantity that the external peripheral surface from roller of the yarn that contacts with the external peripheral surface of rotation roller slides fluctuates, thereby the quantity of yarn feeding changes by contact pressure.
The third embodiment of the present invention is devoted to the prevent mean that breaks, wherein, yarn feeding quantity increases and sloping portion comprises that further a yarn takes and feeding structure, be used for when unusual yarn tension produces, deriving the fluctuation of yarn with opposing tension force, simultaneously, also be used for yarn moment being fed into downstream one side with the feeding quantity an of necessity.
Transport under the situation of yarn with a definite fillet at the external peripheral surface that makes the rotation roller, the contact force that acts on the external peripheral surface of roller has just increased, and when the tension force of yarn increased, yarn was attempted to move with aforesaid center position like this.For example,, on the circumferencial direction on the external peripheral surface of rotation roller, form a U-shaped groove, further be, along groove of lower surface formation of this groove with V-arrangement cross section as taking and feeding structure of yarn.On the surface of whole groove, form a elastic layer with ideal thickness.And, form the ledge as the mountain peak of rib shape that an oncus from the U-shaped cross section of groove and the intersection between the V-arrangement cross section enters the protrusion of v-depression.
In this case, preferably outstanding part should have a U-shaped part with U-shaped groove or elastic layer the bottom surface extensional surface almost be that leg-of-mutton cross section is as a side.
If the external peripheral surface at the rotation roller transmits, and the tension fluctuation of the yarn of advancing with the rotation of roller is in the predefined scope, just make yarn by keeping in touch corresponding to the contact pressure of tension force and the external peripheral surface of roller, and with a predefined amount of feeding towards the downstream feeding.When tension force becomes unusual tension force above the original start scope, put on and overcome the holding power of the ledge of elastic layer with the contact pressure that acts on the roller center position on the yarn, ledge generation strain like this, and therefore yarn also is directed to the v-depression part, is clamped firmly in the bottom of v-depression part.So, positively taken by the rotation of rotation roller at the yarn of upstream side, and be fed into the downstream reliably.The result is, for example unusual tension force is not delivered on the yarn leader of twisting with the fingers axle, and yarn is not cut off.
The fourth embodiment of the present invention is devoted to a kind of yarn treatment machine, this machine comprises yarn feeding part and a yarn treatment part, and have one be configured on yarn feeding part and the yarn treatment yarn movement path between partly according to any one broken string prevent mean among first to the 3rd embodiment of the present invention.The example of yarn treatment machine comprises manufacturing machine and the yarn strand and the machine of the yarn of finishing that is used for large volume and the various multiple yarn of finishing, and the yarn strand and the machine of the typical yarn treatment machine of concrete conduct define in the fifth embodiment of the present invention.
The fifth embodiment of the present invention is devoted to have according to being arranged on yarn feeding part and twisting with the fingers the yarn strand and the machine of the broken string prevent mean on the yarn movement path between the axle of first to the 3rd embodiment of the present invention, and further comprise one be arranged on twist with the fingers axle and twine's wound portion divide between and be used to twine the feed rolls of the excessive feeding doubled yarn of part to doubled yarn.
In yarn strand and machine, yarn rotates around axle, simultaneously the yarn leader of twisting with the fingers axle and be configured in same axle directly over the air ring guiding device between form an air ring, and on the air ring guiding device, twist with the fingers also, also therefore be wrapped in and twine on the part.Generally speaking, be guided out the sth. made by twisting axle with the winding tension yarn that twines part.At this moment, the centrifugal force that acts on yarn tension on the air ring and be by yarn is produced, and it is shorter than the length through the initial yarn that obtains before the air ring guiding device that the length of the twine by the air ring guiding device becomes.So it is high that the winding tension that the warp tension ratio of yarn sets in advance is wanted.In the present invention, except the short-term prevent mean, the feed rolls that is used for excessive feeding is set to be twisted with the fingers between axle and the twine's wound portion branch, so that prevent the broken string of initial yarn and twine twine with a predefined winding hardness.
The 6th embodiment of the present invention is devoted to yarn strand and machine, and wherein, the tension force releasing unit is a rotation roller with predefined rotating speed rotation, and feed rolls has and the identical structure of rotation roller, and rotates roller and feed rolls is supported on the same rotating shaft.As mentioned above, feed rolls twines twine with predefined winding hardness.Therefore, the twine by the air ring guiding device by excessive feeding so that obtain a speed corresponding to speed of wrap.
In the present invention, feed rolls has identical structure with rotation roller as the tension force releasing unit of broken string prevent mean aspect structure form and size, and these two rollers connect by same axle, and are driven simultaneously.Increase the rotating speed of feeding roller of amount of feeding more than the speed of wrap that part is twined in twine consistent with being arranged on air ring guiding device and doubled yarn wound portion being used between dividing for the rotating speed that makes the rotation roller between the yarn lead-in portion that is arranged on yarn feeding part and twists with the fingers axle.So when unusual tension force also acted on the initial yarn, the amount of feeding that is directed into the yarn of twisting with the fingers axle was configured to twine speed of wrap partly guarantees stable air ring greatly with this formation than twine at least.
The accompanying drawing summary
Fig. 1 schematically shows according to the specific embodiment of the structure of the yarn strand that comprises a broken string prevent mean of the first embodiment of the present invention and machine and the key-drawing of yarn strand and step.
Fig. 2 is the perspective view that demonstration is amplified according to the part of an example of the arrangements of components of the broken string prevent mean of first embodiment.
Fig. 3 is the partial cross section figure of structure that schematically shows as the external peripheral surface of the rotation roller of the parts of broken string prevent mean.
Fig. 4 is the perspective view that shows that the part of an example of the arrangements of components of broken string prevent mean is according to a second embodiment of the present invention amplified.
Fig. 5 schematically shows the example of a traditional yarn strand and machine typical structure and the key-drawing of yarn strand and step.
The specific embodiment
Hereinafter specifically describe most preferred embodiment of the present invention with reference to the accompanying drawings.Fig. 1 has schematically shown a kind of the comprising according to the yarn strand of the broken string prevent mean of the first embodiment of the present invention and the line strand and the step of machine of rope twisting machine of being called.
The first initial yarn Y1 that derives from yarn feeding spool 1 enters according to broken string prevent mean 3 of the present invention and 4 by spring tension device 2, by broken string prevent mean 3 and 4, and introduce from the yarn inlet port (and do not show) of the sth. made by twisting axle jar 6a that twists with the fingers axle 6 by a ball tensioner 5 and to go into to twist with the fingers an axle jar 6a, and drawn a yarn that is formed on the sidepiece of twisting with the fingers axle jar 6a and drawn port to the outside.Twist with the fingers an axle jar 6a and be made into inverted cone-shaped, be used for second initial yarn Y2 (yarn) the feeding spool 7 and be installed in a sth. made by twisting axle jar 6a from top.Yarn feeding spool 7 has the weight lighter than the first yarn feeding spool 1, and all the length of yarns is set shortlyer usually.
Air ring guiding device 8 just in time is provided in the top of the second yarn feeding spool 7, and the first initial yarn Y1 that draws from the sidepiece of twisting with the fingers axle jar 6a inserts by air ring guiding device 8.On the other hand, being wrapped in the second initial yarn Y2 that is installed on the second yarn feeding spool of twisting with the fingers among the axle jar 6a 7 also directly inserts by air ring guiding device 8 together with the first initial yarn Y1.When twisting with the fingers axle 6 rotations, the first initial yarn Y1 is around 7 rotations of the second yarn feeding spool, form one simultaneously and draw air ring between the gentle circle guiding device 8 of port at the yarn of twisting with the fingers axle jar 6a, two initial yarn T1 twist in air ring guiding device 8 with T2 and become one.Therefore the bifilar yarn Y3 that obtains sends into by feed rolls 9 and twines part 10, and is wrapped on the paper tube (plastic tube, aluminum pipe) by twining part 10, so that form spindle 11.
Present embodiment is characterised in that broken string prevent mean 3 and 4 is as a tension force releasing unit and feed rolls 9.Fig. 2 shows the schematic structure of broken string prevent mean 3 and 4 and broken string prevent mean 3 and 4 and the zoomed-in view of the example of the dependency structure of feed rolls 9.
As Fig. 1, shown in 2, form by a rotation roller 3 and a guide reel that rotates freely simply 4 according to the broken string prevent mean of present embodiment.
As shown in Figure 3, rotation roller 3 has that to have on the peripheral surface that is formed on rotation roller 3 in a circumferential direction almost be the first groove part 3a of U-shaped section and second a groove part 3b with V-shaped section who forms along first groove part 3a bottom on identical circumferencial direction.And, also form the elastic layer 3c that constitutes by polyurethane rubber that hardness is in advance arranged or elastomeric material that silicon rubber forms on the whole surface of the first groove part 3a and the second groove part 3b.In addition, as the projection 3d with triangular cross-section of a side of the first groove part 3a bottom surface extensional surface with separately along relative to each other as the relative spine portion of the intersection of the first groove part 3a in elastic layer 3c and second groove part 3b extension free end adjacent to each other.
What the first initial yarn Y1 by 2 feedings of spring tension device was placed in rotation roller 3 with top described structure almost is on second circumference, and then resemble and be placed on the first half or more parts of guide reel 4 external peripheral surfaces the Z font, and be sent to the ball tensioner 5 that is equipped with below, pass ball tensioner 5 more thereafter and enter sth. made by twisting axle 6.Under the situation that tension force in the first initial yarn Y1 constantly fluctuates, the first initial yarn Y1 is supported on by the contact pressure corresponding to tension fluctuation on the elastic layer of the first groove part 3a that rotates roller 3, is sent to the downstream in the mobility that changes corresponding to contact pressure.
If the first initial yarn Y1 villous on the first yarn feeding spool, for example and contiguous initial yarn Y1 twine and do not draw smoothly with the tension force of normally taking, the tension force between yarn feeding part and rotation roller 3 then increases rapidly.According to embodiment, also increase rapidly and increase along with tension force against the contact pressure of first initial yarn 1 of firmly rotating roller 3 external peripheral surfaces.When contact pressure exceeds the first groove part 3a bottom that is formed on rotation roller 3 external peripheral surfaces and goes out the support force of part 3d, the protrusion free end of projection 3d on the direction at roller center strain so that the first initial yarn Y1 slips into the second groove part 3b with V-shaped section.
As a result of, the second groove part 3b catches the first initial yarn Y1 forcefully, loosens the winding of the first initial yarn Y1 on yarn feeding spool 1 by revolving force moment, and the first initial yarn Y1 by reliability send into the downstream.So unusual tension force can not propagated to the yarn of twisting with the fingers on the axle 6 in the downstream and introduce part, the diameter of air ring can be prevented from owing to unusual tension force reduces.Like this, broken string can be prevented reliably.The winding of the first initial yarn Y1 is loosened as mentioned above, and at one time, tension force moment of the first initial yarn Y1 is returned to stable state.So the first initial yarn Y1 is only guided along with tensioning state is produced by projection 3d by the tension force in the stable state, and automatically turns back to the surface of the elastic layer of the first groove part 3a once more.
From another angle, according to present embodiment, the rotation roller contacts with yarn by pressure, and when the tension force of yarn surpassed a predefined numerical value, yarn just increased by firmly grasping yarn against the contact pressure of the external peripheral surface of living transfer roller.
In addition, in the present embodiment, make air ring guiding device 8 and twine the rotary speed of the feed rolls 9 that is equipped with between the part 10 little be higher than twine part 10 speed of wrap so that with the too much feeding of doubled yarn.Usually, the winding tension that twines part 10 is by because and first initial yarn Y1 air ring strand and and shrink the tension force that causes and increase and increase so that the winding tension of setting exceeds.So spindle 1 is very tight around getting.For fear of this condition, reduce the tension force that is fed into the doubled yarn that twines part 10 by the feed rolls 9 too much Y3 of feeding twine.So, just produce the spindle 11 of winding hardness with setting.
In addition, in an embodiment, feed rolls 9 and rotation roller 3 between air ring guiding device 8 and winding part 10 are supported on the aforesaid same rotating shaft 12.And feed rolls 9 has identical roll structure with rotation roller 3 on structure and size, and roller 3 and roller 9 all rotate with same rotary speed.By this structure, when unusual tension force occurring, the amount of feeding of the first initial yarn Y1 by rotation roller 3 is approximately the twining amount of the Y3 of twine.So it is possible avoiding the increase by the tension force of twisting with the fingers axle 6 air rings that form.
Fig. 4 is second embodiment that has schematically shown according to broken string prevent mean of the present invention.
According to present embodiment, by with those rotation roller 3 of same structure being arranged in first embodiment, guide reel 4 and leaf spring 13 are formed as the broken string prevent mean of a tension force releasing unit.In the present embodiment, leaf spring 13 and guide reel 4 are equipped with by this way, shown in solid line among Fig. 4, the first initial yarn Y1 that guides from yarn feeding part (figure does not show) advances the stable course of work to realize simply with rotating roller 3 contacts.
More particularly, the first initial yarn Y1 that partly guides from the yarn feeding at first passes and is formed on leaf spring 13 free-ended patchhole 13a and inserts, and almost flatly is placed on the guide reel 4, walks downward again.Under the stable tension state, the external peripheral surface of rotation roller 3 is configured to simply realize with the 4 straightaway first initial yarn Y1 contact from leaf spring 13 to guide reel, and sends the first initial yarn Y1 indefinitely.
When tension fluctuation produces broken string and when causing in bigger tension force produces unusually than steady state tension the scope on the first initial yarn Y1, first initial yarn is tightened up corresponding to the increase of tension force, leaf spring 13 is strain on the direction shown in Fig. 4 arrow, therefore, the external peripheral surface of the same rotation roller that is driven and rotates of the first initial yarn Y1 of advancing between leaf spring 13 and guide reel 4 is contacted.According to contact pressure, the first initial yarn Y1 makes slippage with the external peripheral surface fluctuation of mode same in first embodiment at rotation roller 3 definitely towards the downside feeding simultaneously.
When producing defective in yarn feeding part side so that when the tension force of the first initial yarn Y1 further increases, leaf spring 13 produces bigger strain makes the first initial yarn Y1 abut against the external peripheral surface of rotation roller 3 by contact pressure, the first initial yarn Y1 is slided into as shown in Figure 3 v-depression part 3b, the power of catching to initial yarn Y1 is increased, so that effectively draw initial yarn Y1 on yarn feeding part side, reach the purpose of eliminating defective.Simultaneously, initial yarn Y1 definitely towards downstream side be fed, the amount of feeding is corresponding to the rotary speed of the rotation roller 3 that is driven and rotates.The defective of the first initial yarn Y1 has been eliminated, and the first initial yarn Y1 is returned to the state with stable tension force simultaneously.Therefore, the elastic force by leaf spring 13 makes the first initial yarn Y1 be drawn out the v-depression part 3b of the external peripheral surface of rotation roller 3, is returned to the contacted stable status of external peripheral surface that realizes with rotation roller 3.Therebetween, this operation is to finish moment.So the unusual tension force that produces on the first initial yarn Y1 of yarn feeding part side can not pass and into be inserted into the yarn treatment part, for example the sth. made by twisting axle in downstream (and do not show).So broken string can prevent reliably.
Though above the structure to rotation roller 3 is described by the example of taking the structure of external peripheral surface among Fig. 3, the structure of roller is not restricted to the described structure of example among the figure, and multiple variation can be arranged.Briefly, can change based on the amount of feeding of determining of realization with the fluctuation of the tension force of the contacted yarn of external peripheral surface.In addition, when produce in the processing section cause the unusual tension force of broken string in, yarn can be with corresponding to the amount of feeding of the excessive amount of feeding of the feed rolls that the twines part structure of feeding definitely therein preferably to use one.
Table 1 unit: g
As can be seen from Table 1, traditional rope twisting machine does not comprise according to broken string prevent mean of the present invention.So the yarn feeding tension force T-0 that applies from yarn feeding spool 1 is tension force T-3 through ball tensioner 5 later increases widely.On the other hand in the rope twisting machine according to the present invention, the yarn feeding tension force T-0 that applies from yarn feeding spool 1 temporarily increases to tension force T-1 between spring tension device 2 and rotation roller 3, and reduces (to T-2) before entering ball tensioner 5 greatly.The tension force T-3 of the first initial yarn Y1 by ball tensioner 5 increases slightly.As a result, be taken in line feeding tension force T-0 until 40+-10 (g) at the rope twisting machine, and last tension force T-3 clearly can not produce broken string and damage when being approximately 70 (g) according to the present invention., just produced when yarn feeding tension force is 25 to 30 (g), breaking on traditional rope twisting machine.
Claims (8)
- One kind the broken string prevent mean, it is characterized in that this device comprises:One is arranged on the yarn movement distance, is used for when tension force surpasses predefined tension force yarn positively is fed into the tension force releasing unit of downstream one side corresponding to the amount of feeding of yarn tension.Wherein said tension force releasing unit comprises a rotation roller by pressure contact yarn, and yarn increases by the clamping yarn against the contact pressure that firmly rotates roller when the tension force of yarn surpasses predefined numerical value;Described tension force releasing unit is delivered to the downstream with yarn in the mobility that changes corresponding to contact pressure.
- 2. broken string prevent mean as claimed in claim 1 is characterized in that,Wherein, the rotation roller of tension force releasing unit is with constant rotating speed rotation, and this rotation roller comprises:The yarn amount of feeding that state moment corresponding to the increase of tension force and minimizing that is used for based on yarn increases and reduce the amount of feeding of yarn increases and sloping portion.
- 3. broken string prevent mean as claimed in claim 2 is characterized in that,Wherein, the yarn amount of feeding increases and reduces part and comprises that one is taken and feeding structure, this structure is used for deriving yarn when the unusual tension force of yarn produces and the fluctuation of resisting tension force, and can be fed into downstream one side to yarn moment with the necessary amount of feeding.
- 4. broken string prevent mean as claimed in claim 1 is characterized in that,Wherein the tension force releasing unit further comprises a guide reel, and yarn places rotation roller and guide reel with " Z " font.
- 5. a yarn treatment machine is characterized in that, this machine comprises:A yarn feeding part;One is arranged on the yarn movement distance, is used for when tension force surpasses predefined tension force yarn positively is fed into the tension force releasing unit of downstream one side corresponding to the amount of feeding of yarn tension;Wherein said tension force releasing unit comprises a rotation roller by pressure contact yarn, and yarn increases by the clamping yarn against the contact pressure that firmly rotates roller when the tension force of yarn surpasses predefined numerical value; WithA yarn treatment part,Wherein the tension force releasing unit is arranged on the motion distance between yarn feeding part and the yarn treatment part;Described tension force releasing unit is delivered to the downstream with yarn in the mobility that changes corresponding to contact pressure.
- 6. yarn treatment machine as claimed in claim 5 is characterized in that, wherein yarn treatment partly is a sth. made by twisting axle.
- 7. a yarn twists and machine, it is characterized in that this machine comprises:A yarn feeding part;One is arranged on the yarn movement distance, is used for when tension force surpasses predefined tension force yarn positively is fed into the tension force releasing unit of downstream one side corresponding to the amount of feeding of yarn tension;Wherein said tension force releasing unit comprises a rotation roller by pressure contact yarn, and yarn increases by the clamping yarn against the contact pressure that firmly rotates roller when the tension force of yarn surpasses predefined numerical value; WithA yarn treatment part; WithA feed rolls; WithPart is twined in a twine,Wherein, the tension force releasing unit is arranged on the motion distance between yarn feeding part and the yarn treatment part, wherein feed rolls is arranged between yarn treatment part and twine's wound portion branch, and is used for twining the excessive feeding of part twine to plying;Described tension force releasing unit is delivered to the downstream with yarn in the mobility that changes corresponding to contact pressure.
- 8. yarn strand as claimed in claim 7 and machine is characterized in that,Wherein the rotation roller of tension force releasing unit is with predefined rotational speed, and feed rolls has and the identical structure of rotation roller, and rotation roller and feed rolls all are supported on the same rotating shaft.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002054221A JP3960418B2 (en) | 2002-02-28 | 2002-02-28 | Yarn breakage prevention device and yarn processing machine having the same yarn breakage prevention means |
| JP2002054221 | 2002-02-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1441096A CN1441096A (en) | 2003-09-10 |
| CN100462489C true CN100462489C (en) | 2009-02-18 |
Family
ID=27750955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031060528A Expired - Lifetime CN100462489C (en) | 2002-02-28 | 2003-02-21 | Preventer for yarn cutting and yarn processing machine with yarn cutting preventive unit |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20030159424A1 (en) |
| JP (1) | JP3960418B2 (en) |
| KR (1) | KR100507263B1 (en) |
| CN (1) | CN100462489C (en) |
| TW (1) | TWI238863B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103952816A (en) * | 2014-04-23 | 2014-07-30 | 吴江市科时达纺织有限公司 | Yarn ellipsoid tensioner |
| CN103952818A (en) * | 2014-04-23 | 2014-07-30 | 吴江市科时达纺织有限公司 | Tensioner with air flow brake function |
| CN103952815A (en) * | 2014-04-23 | 2014-07-30 | 吴江市科时达纺织有限公司 | Hollow yarn tensioner with precise regulation |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100460577C (en) * | 2006-08-30 | 2009-02-11 | 上海市毛麻纺织科学技术研究所 | Yarn tensioner |
| KR200446116Y1 (en) * | 2008-06-27 | 2009-09-25 | 안병찬 | CS with automatic tensioner |
| DE102008033849A1 (en) * | 2008-07-19 | 2010-01-21 | Oerlikon Textile Gmbh & Co. Kg | Method for operating a spindle of a double-twisting or cabling machine |
| JP2011038189A (en) * | 2009-08-06 | 2011-02-24 | Murata Machinery Ltd | Spinning machine and method for removing spun yarn remaining on yarn accumulating roller |
| CN102071503A (en) * | 2011-03-04 | 2011-05-25 | 上海市毛麻纺织科学技术研究所 | Filament tension control device for filament short-fiber composite spinning |
| US20120222601A1 (en) * | 2011-03-04 | 2012-09-06 | Reid Michael Anderson | Method and device for absorbing initial force in a thread delivery device |
| DE102016008621A1 (en) * | 2016-07-15 | 2018-01-18 | Saurer Germany Gmbh & Co. Kg | Method for starting a spindle of a cabling or double twisting machine |
| CN106012138A (en) * | 2016-07-18 | 2016-10-12 | 吴江福爱梁纺织有限公司 | Overload yarn tension buoy |
| JP6822708B1 (en) | 2020-03-25 | 2021-01-27 | 株式会社Ｉｔｏｉ生活文化研究所 | Composite paper yarn, the manufacturing apparatus, and the manufacturing method |
| JP7396158B2 (en) * | 2020-03-26 | 2023-12-12 | 住友電気工業株式会社 | Optical fiber manufacturing method |
| CN113564740A (en) * | 2020-04-29 | 2021-10-29 | 中国石油化工股份有限公司 | Automatic detection device and detection method for broken filaments in fiber tow winding process |
| KR102193051B1 (en) * | 2020-06-22 | 2020-12-18 | 김기섭 | Rope manufacturing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5957402A (en) * | 1994-01-28 | 1999-09-28 | Ppg Industries Ohio, Inc. | Method and apparatus for reducing catenary during winding of a fiber bundle |
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2002
- 2002-02-28 JP JP2002054221A patent/JP3960418B2/en not_active Expired - Lifetime
-
2003
- 2003-02-18 US US10/370,945 patent/US20030159424A1/en not_active Abandoned
- 2003-02-21 CN CNB031060528A patent/CN100462489C/en not_active Expired - Lifetime
- 2003-02-25 TW TW092103907A patent/TWI238863B/en active
- 2003-02-25 KR KR10-2003-0011645A patent/KR100507263B1/en not_active IP Right Cessation
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1382481A (en) * | 1971-01-23 | 1975-02-05 | Weller Maschf Heinz | Thread tension adjuster in a twisting spinning or spooling machine |
| US4099307A (en) * | 1976-12-09 | 1978-07-11 | Ppg Industries, Inc. | Apparatus for producing slubby yarn |
| US4134253A (en) * | 1977-04-01 | 1979-01-16 | Aichi Spinning Co., Ltd. | Method and apparatus for winding roving with constant tension on bobbin on bobbin-lead type roving frame |
| US4346551A (en) * | 1979-07-27 | 1982-08-31 | Murata Kikai Kabushiki Kaisha | Method and apparatus for twisting and winding yarns on packages |
| GB2151664A (en) * | 1983-11-25 | 1985-07-24 | Textima Veb K | Adjusting roving tension in a roving frame |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103952816A (en) * | 2014-04-23 | 2014-07-30 | 吴江市科时达纺织有限公司 | Yarn ellipsoid tensioner |
| CN103952818A (en) * | 2014-04-23 | 2014-07-30 | 吴江市科时达纺织有限公司 | Tensioner with air flow brake function |
| CN103952815A (en) * | 2014-04-23 | 2014-07-30 | 吴江市科时达纺织有限公司 | Hollow yarn tensioner with precise regulation |
| CN103952815B (en) * | 2014-04-23 | 2016-01-20 | 吴江市科时达纺织有限公司 | Open-core type fine adjustment yarn tensioner |
| CN103952816B (en) * | 2014-04-23 | 2016-01-20 | 吴江市科时达纺织有限公司 | Yarn ellipsoid tensioner |
| CN103952818B (en) * | 2014-04-23 | 2016-01-20 | 吴江市科时达纺织有限公司 | With the tensioner of flow brake function |
Also Published As
| Publication number | Publication date |
|---|---|
| US20030159424A1 (en) | 2003-08-28 |
| KR100507263B1 (en) | 2005-08-08 |
| TW200407473A (en) | 2004-05-16 |
| JP2003253531A (en) | 2003-09-10 |
| JP3960418B2 (en) | 2007-08-15 |
| CN1441096A (en) | 2003-09-10 |
| KR20030071512A (en) | 2003-09-03 |
| TWI238863B (en) | 2005-09-01 |
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