CN102190208B

CN102190208B - Yarn winding device

Info

Publication number: CN102190208B
Application number: CN201110048439.8A
Authority: CN
Inventors: 谷川保伸; 牟田胜文; 竝川哲也; 森秀茂
Original assignee: Murata Machinery Ltd
Current assignee: Murata Machinery Ltd
Priority date: 2010-03-17
Filing date: 2011-02-23
Publication date: 2015-06-17
Anticipated expiration: 2031-02-23
Also published as: CN102190208A; EP2366651A2; CN202089642U; EP2366651B1; EP2366651A3; JP5545593B2; JP2011195217A

Abstract

The invention provides a yarn winding device. An automatic winder as the yarn winding device includes a cradle (23) that rotatably supports a winding bobbin, a contact roller (29) that rotates while making contact with a package (30), a traverse arm (74), and a traverse driving motor (76) that rotationally drives the traverse arm (74). A yarn guide section (73) is arranged at a tip end of the traverse arm (74) in order to guide yarn, and the yarn guide section (73) traverses the yarn. The yarn guide section (73) includes a terminal section and an opened section. The terminal section regulates the yarn on the tip end of the yarn guide section (73). The opened section is formed facing towards a base end of the traverse arm (74) so as to guide the yarn to the terminal section. When viewed from an axial direction of the contact roller (29), a rotational axis line (L1) of the traverse arm (74) and a yarn path line (L3), which is formed by extending a yarn path near the yarn guide section (73) at a traverse end, intersect while forming an acute angle or are parallel to one another.

Description

Yarn winding apparatus

Technical field

The present invention relates to and make yarn traversing while yarn to be wound up into the Yarn winding apparatus on mound bobbins.

Background technology

In the past, known a kind of Yarn winding apparatus with the formation of Yarn lateral-movement device for making yarn traversing.Such as, Japanese Unexamined Patent Publication 2006-298499 publication and the Yarn lateral-movement device disclosed in Japanese Unexamined Patent Application Publication 2002-518276 publication are by engaging the traverse arm being provided with this thread-carrier with the thread-carrier guided yarn, front end with yarn and the actuating device making this traverse arm move back and forth is formed.Actuating device makes traverse arm move back and forth (rotation), thereby, it is possible to make yarn traversing while be wound up in package by yarn by thread-carrier portion.

There is yarn splicing device and guide the Yarn winding apparatus of parts (yarn guide member) of yarn to be also known to this yarn splicing device.So-called yarn splicing device is when when detecting yarn defect thus the yarn carried out cuts off, in unwinding yarn, broken end occurs yarn etc. in situation, by the device of the yarn termination yarn of the yarn ends of yarn feeding spool side and package side.

In the structure of above-mentioned Japanese Unexamined Patent Publication 2006-298499 publication, time near the end that thread-carrier closes on traversing width, this thread-carrier is positioned at below (upstream side in yarn road).Therefore, the below (with the coiling direction of package contrary direction) of yarn to Yarn winding apparatus can be pulled.In this case, near the end and end of yarn traversing width, can there is warpage in yarn road, therefore, winding tension can occur and rise.Thus, the hardness that package can occur rises or skips (float), thus the quality of package reduces.

And the structure of Japanese Unexamined Patent Application Publication 2002-518276 publication, be the finger shape that the front end of guide slit (yarn guiding part) opens.Therefore, when making swing pin (traverse arm) with arc-shaped rotary motion, when swinging pin and returning, yarn can be deviate from from guide slit.Be not only when swinging pin and returning, due to the vibration etc. produced in the traversing action of yarn, yarn also can be deviate from from guide slit.

In addition, in the structure of Japanese Unexamined Patent Application Publication 2002-518276 publication, in time catching yarn when reeling and starting, yarn is easily deviate from from open front.Therefore, there is the situation that cannot start traversing action immediately.And, in order to yarn is guided to guide slit, need to make swing pin move to specific position relative to guide plate.Like this, in the structure of Japanese Unexamined Patent Application Publication 2002-518276 publication, traversing action cannot be started as early as possible, therefore from the viewpoint of the production efficiency of Yarn winding apparatus, it is desirable to improve.

Summary of the invention

The object of the present invention is to provide a kind of Yarn winding apparatus that as soon as possible yarn can be guided to yarn guiding part and also can prevent the quality of package end from reducing.

According to the first viewpoint of the present invention, Yarn winding apparatus has mound bobbins support, contact roller, traverse arm, traversing drive division.Mound bobbins in order to form described package and winding yarn supports in the mode that can rotate by described mound bobbins support.Described contact roller contacts with described mound bobbins or described package and rotates.Described traverse arm makes yarn traversing.The yarn guiding part for guiding yarn is configured with in the front of traverse arm.Described traversing drive division carries out rotary actuation to described traverse arm.Described yarn guiding part has: in the limiting unit of front restriction yarn; Yarn to be guided to the guiding port of mode to the base end side opening of described traverse arm of described limiting unit.When the direction of principal axis of described contact roller is observed, the yarn diatom that the rotation axis of described traverse arm extends with the yarn road near the yarn guiding part of the end by traversing width and obtains be acute angle crossing or parallel.

Thus, the little or rotation axis in angle formed by the rotation axis of traverse arm and described yarn diatom and described yarn road line parallel.Therefore, even if when traverse arm rotates to end (the traversing end) of traversing width, yarn guiding part also moves hardly on the direction along yarn road.Therefore, owing to particularly can alleviate the warpage of the yarn caused because of yarn guiding part in traversing end.Consequently, can prevent the quality of package from reducing.And, owing to being formed with limiting unit on yarn guiding part, even so in traversing because of vibration and force of inertia etc. pull yarn, also can prevent yarn from deviating from from yarn guiding part.And, due to when the traversing action of traverse arm starts, easily yarn can be guided to yarn guiding part, so the traversing of the yarn realized by traverse arm promptly can be started, thus the production efficiency of Yarn winding apparatus can be improved.

In described Yarn winding apparatus, be preferably formed with the rake guided to described guiding port by yarn at described yarn guiding part.Thus, owing to can really and as soon as possible carry out the guiding of yarn to yarn guiding part, so the production efficiency of Yarn winding apparatus can be improved.

In described Yarn winding apparatus, preferred described rotation axis and described yarn diatom almost parallel.Thereby, it is possible to the warpage of the yarn caused by the yarn guiding part of the end of traversing width is limited in Min., the package of high-quality thus can be formed.

In described Yarn winding apparatus, when the direction of principal axis of described contact roller is observed, the vertical line that position and the base end part from described traverse arm of the described yarn guiding part of the end of traversing width guide described yarn diatom into is positioned at the downstream in yarn road compared with the intersection point of this yarn diatom.Thus, by making traverse arm be suitable length, yarn guiding part can be made close to package and the contact wire contacting roller.Consequently, drift (free length) and impression length (print length) can be shortened.Therefore, due to the having stable behavior of the yarn that will be wound in package can be made, so the quality of package can be improved.In addition, so-called drift, refers to yarn guiding part and the distance of yarn contacts between the point contacting surface of roller.That is, the yarn of drift is equivalent to not by restrictions such as contact rollers.Therefore, if drift is elongated, then become unstable by yarn guiding part with the action of the yarn of high speed traversing, therefore cannot wound package well.In addition, by yarn guiding part traversing and to package winding yarn with contact roller brought into temporary contact (impression) after be wound.The yarn be wound in package is with the length contacting the part that roller contacts " impression length ".

In described Yarn winding apparatus, as the face with the linear vertical of drawing in the direction of drawing yarn from described yarn feeder, using the face near this yarn feeder as vertical surface time, described traverse arm is supported by described traversing drive division in the mode being parallel to described vertical surface in the longitudinal direction.Thus, at employing layout of the present invention (the little or rotation axis in angle formed by the rotation axis of traverse arm and described yarn diatom and described yarn road line parallel), and traverse arm vertical relative to rotation axis time, the layout of yarn from yarn feeder to package warpage hardly can be realized.

In described Yarn winding apparatus, as the face with the linear vertical of drawing in the direction of drawing yarn from described yarn feeder, using the face near this yarn feeder as vertical surface time, the mode that described traverse arm is in apart from described vertical surface position far away with yarn guiding part compared with base end side is supported by described traversing drive division.Thus, when the yarn walking path from yarn feeder to package is formed with substantially linear, the configuration of traverse arm can make yarn guiding part close to package and the contact wire contacting roller.Consequently, drift and impression length can be shortened.Therefore, due to the having stable behavior of the yarn that will be wound in package can be made, so the quality of package can be improved.

In described Yarn winding apparatus, preferred described traverse arm has to the bending curve in the direction close to described contact roller.Thus, by making the traverse arm of side more forward than curve be suitable length, yarn guiding part can be made close to package and the contact wire contacting roller.Consequently, drift and impression length can be shortened.Therefore, due to the having stable behavior of the yarn that will be wound in package can be made, so the quality of package can be improved.

In described Yarn winding apparatus, preferably there is the rotary driving part of directly mound bobbins described in rotary actuation.Thus, compared with making the structure of the driven rotation of package, the diameter contacting roller can be reduced.Therefore, due to drift and impression length can be shortened, so the having stable behavior of the yarn that will reel can be made thus can improve the quality of package.

Described Yarn winding apparatus has yarn feeder, yarn splicing device and yarn guide member.Described yarn feeder supplies the yarn that will reel to described package.The yarn ends of the yarn ends of described package side and described yarn feeder side links by described yarn splicing device.Described yarn guide member can catch by attracting the yarn ends of oral area to described package side and guide.Described traverse arm is supported by described traversing drive division, and makes attract at described attraction oral area and catch the position of the yarn ends of described package side, and described yarn guiding part is positioned at the upstream side in yarn road compared with described attraction oral area.

Thereby, it is possible to positively prevent yarn guiding part from contacting with yarn guide member and damaged.In addition, when the yarn disconnection of package side and the yarn ends of this yarn are attracted oral area attraction, by yarn guide member, attraction are carried out to the yarn ends of package side and catch and guide.Now, due to traverse arm need not be made to move to special retreating position, so the winding operation of discontinued yarn can be made again to start as early as possible.

According to the second viewpoint of the present invention, Yarn winding apparatus has yarn feeder, mound bobbins support, contact roller, traverse arm and traversing fulcrum.Described yarn feeder supplies the yarn that will reel to package.Mound bobbins in order to form described package and winding yarn supports in the mode that can rotate by described mound bobbins support.Described contact roller contacts with described mound bobbins or described package and rotates.Described traverse arm makes yarn traversing.The yarn guiding part for guiding yarn is configured with in the front of traverse arm.Described traversing fulcrum is the traversing fulcrum of the yarn that will be wound up in described package.Described yarn guiding part has: in the limiting unit of front restriction yarn; Yarn to be guided to the guiding port of mode to the base end side opening of described traverse arm of described limiting unit.When the direction of principal axis of described contact roller is observed, at least in the end of described package, relative to the straight line that the position of the side, most upstream by the yarn on described contact roller is connected with described traversing fulcrum, the line along the length direction of described traverse arm is approximate right angle.

Thus, even if the end of the traverse stroke in traverse arm, the situation that will be wound on yarn in the package significantly warpage because of yarn guiding part also can be alleviated.Therefore, it is possible to while prevent yarn from deviating from from yarn guiding part, the yarn that damage from winding is few in package.

Described Yarn winding apparatus has traversing drive division.Traversing drive division supports the S. A. of described traverse arm and carries out rotary actuation to described traverse arm.Described traverse arm is supported by described traversing drive division in the mode near make described yarn guiding part be configured in position that yarn contacts described contact roller at first.Thereby, it is possible to shorten drift and impression length.Consequently, due to the having stable behavior of the yarn that will be wound in package can be made, so the generation of skips (stitching) and winding wrinkle (wrinkles) etc. can be suppressed, and the quality of package can be improved.

In described Yarn winding apparatus, preferred described traverse arm has to the bending curve in the direction close to described contact roller.Thereby, it is possible to shorten drift and impression length.Consequently, due to the having stable behavior of the yarn that will be wound in package can be made, so the generation of skips and winding wrinkle etc. can be suppressed, and the quality of package can be improved.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of the automatic bobbin winder of an embodiment of the present invention.

Fig. 2 shows schematic diagram and the block diagram of the brief configuration of doff unit.

Fig. 3 is the enlarged side view near traverse gear.

Fig. 4 is the front view of the shape that yarn guiding part is described.

Fig. 5 is the enlarged side view near the traverse gear of the first variation.

Fig. 6 is the enlarged side view near the traverse gear of the second variation.

Detailed description of the invention

Below, working of an invention mode is described.First, be described with reference to the structure of Fig. 1 to the entirety of the automatic bobbin winder (Yarn winding apparatus) 1 of present embodiment.In addition, in this manual, so-called " upstream " and " downstream " refer to reel for yarn around time yarn direction of travel on upstream and downstream.

As shown in Figure 1, automatic bobbin winder (Yarn winding apparatus) 1 comprises multiple doff unit 10, automatic doffer (automatic doffing device) 60, the machine setting device (machine setting device) 90 of configuration side by side as keystone configuration.

Each doff unit 10 to make from yarn feeding spool 21, by yarn 20 traversing of unwinding while this yarn that reels, to form package 30.

When in each doff unit 10, package 30 becomes full volume, automatic doffer 60 moves to the position of this doff unit 10, reclaims the package 30 of full volume and supplies empty spool.

Machine setting device 90 comprises configuration part (setting section) 91 as keystone configuration and display part (display section) 92.Configuration part 91 can by the setting value that inputted regulation by operator or the setting selecting suitable control method to carry out to each doff unit 10.The winding situation that display part 92 can show the yarn of each doff unit 10 and the content etc. of fault occurred.

Below, the structure of doff unit 10 is illustrated with reference to Fig. 2.As shown in Figure 2, each doff unit 10 has winding unit main body (winding unit main body) 16 as keystone configuration and unit controls portion (unit control section) 50.

Unit controls portion 50 such as comprises central process unit (CPU), random access memory (RAM), read-only memory (ROM) (ROM), input and output (I/O) port, communication port (communication port).The program of each structure for controlling winding unit main body 16 is stored in described ROM.Described I/O port and described communication port are connected with each portion (details is aftermentioned) and machine setting device 90 that this winding unit main body 16 has, and are configured to the communication can carrying out control information etc.Thus, unit controls portion 50 can control the action in each portion that winding unit main body 16 has.

Winding unit main body 16 is structures as follows: in the yarn walking path between yarn feeding spool 21 and contact roller 29, be configured with unwinding yarn auxiliary device (yarn unwinding assisting device) 12, tension applying device (tension applying device) 13, device of splicer (splicer device) (yarn splicing device (yarn joining device)) 14, yarn clearer 15 from yarn feeding spool 21 side successively.

Have in the bottom of winding unit main body 16 for the yarn feeder 11 to winding spool 22 side supply yarn 20.The yarn feeding spool 21 come by omitting graphic bobbin convey system (bobbin transportation system) carrying is remained on the position of regulation by yarn feeder 11.

Unwinding yarn auxiliary device 12 has the limiting part 40 covered on the core pipe of yarn feeding spool 21.Unwinding yarn auxiliary device 12, by making limiting part 40 decline linkedly with the unwinding action of the yarn 20 from yarn feeding spool 21, is assisted the unwinding of the yarn 20 from yarn feeding spool 21.Limiting part 40 with because being contacted from yarn feeding spool 21 by the rotation of the yarn 20 of unwinding to be formed in the yarn 20 on yarn feeding spool 21 top air ring with centnifugal force, this air ring is controlled in suitable size.Thus, the unwinding of unwinding yarn auxiliary device 12 pairs of yarns 20 is assisted.Near limiting part 40, there is the graphic sensor of omission in the conical surface portion, cop top for detecting above-mentioned yarn feeding spool 21.When this sensor detects the decline in conical surface portion, cop top, above-mentioned limiting part 40 can follow descending through such as cylinder (omitting diagram) and declining of this conical surface portion, cop top.

Tension applying device 13 gives the tension force of regulation to the yarn 20 of walking.As tension applying device 13, such as, can adopt the gate-type tension applying device configuring movable comb relative to fixing comb.The comb of drawer at movable side can be rotated by revolving screw actuator, thus becomes engagement or release position between comb.In addition, for tension applying device 13, except above-mentioned gate-type tension applying device, such as disc type tension applying device can also be adopted.

Device of splicer 14 detects yarn defect at yarn clearer 15 and to carry out when yarn cuts off or when there is broken end from the yarn yarn feeding spool 21 unwinding etc. in situation, the upper yarn of the yarn under working of yarn feeding spool 21 side and package 30 side to be connect yarn.As such yarn splicing device upper yarn and yarn under working being connect yarn, mechanical device can be used, utilize the device etc. of the fluid of pressurized air etc.

Yarn clearer 15 has yarn clearer head 49 and analyzer 52.Yarn clearer head 49 has the graphic sensor of omission of the rugosity for detecting yarn 20.Analyzer 52 processes the yarn rugosity signal from this sensor.Yarn clearer 15 is configured to, by monitoring that the yarn rugosity signal from described sensor detects the yarn defect of slubbing (slub) etc.Be provided with near described yarn clearer head 49 for when described yarn clearer 15 detects yarn defect immediately by yarn cut off cutter 39.

Yarn under working catches the downside that parts (lower yarn catching member) 25 are configured in described device of splicer 14.Yarn under working catches parts 25 and catches the yarn ends of yarn feeding spool 21 side and guided to device of splicer 14.Upper yarn catches the upside that parts (upper yarn catching member) (yarn guide member) 26 is configured in described device of splicer 14.Upper yarn catches parts 26 and catches the yarn ends of package 30 side and guided to device of splicer 14.Yarn under working catches the yarn under working suction port (lower yarn suction opening) 32 of front end that parts 25 have yarn under working pipe arm (lower yarn pipe arm) 33 and are formed in this yarn under working pipe arm 33.Upper yarn catches the upper yarn suction port (attraction oral area) 35 of front end that parts 26 have upper yarn tube arm (attraction arm) 36 and are formed in yarn tube arm 36 on this.

Yarn under working pipe arm 33 and upper yarn tube arm 36 are configured to rotate centered by axle 34,37 respectively.Yarn under working pipe arm 33 and upper yarn tube arm 36 are connected to suitable negative pressure source.Produce at yarn under working suction port 32 and upper yarn suction port 35 and attract stream, catch to carry out attraction to the yarn ends of upper yarn and yarn under working.

Described winding unit main body 16 has reel cage (mound bobbins support) 23 and contacts roller 29.The spool that reels (mound bobbins) 22 supports in the mode that can install and remove by reel cage 23.Contact roller 29 can with the winding side face of spool 22 or the circumferential contact of package 30 rotating.Winding unit main body 16 has the arm-type traverse gear 70 for making yarn 20 traversing near reel cage 23.Winding unit main body 16 is while make yarn 20 traversing while be wound in package 30 by yarn 20 by traverse gear 70.Guide plate 28 is arranged on the upstream slightly of traversing position, is guided by the yarn 20 of upstream side to traversing position.The traversing fulcrum (traversing fulcrum) 27 that pottery is made is arranged on the more upstream of guide plate 28.Traverse gear 70 with traversing fulcrum 27 for fulcrum make arrow from yarn 20 to Fig. 2 shown in direction traversing.

Described reel cage 23 can rotate centered by turning cylinder 48.Carry out rotating the increase absorbing the thread layers diameter produced to the winding of winding spool 22 along with yarn 20 by reel cage 23.

In the part of the clamping winding spool 22 of described reel cage 23, package drive motor (rotary driving part) 41 is installed.By package drive motor 41, rotary actuation is carried out to winding spool 22, thus yarn 20 is wound in package 30.Can not the mode that rotate relative to this winding spool 22 link (so-called direct drive mode) when the motor shaft of package drive motor 41 is to be bearing in winding spool 22 on reel cage 23.The action of package drive motor 41 is controlled by package drive control part 42.Package drive control part 42 receives the CRANK PULSES from unit controls portion 50 and controls running and the stopping of described package drive motor 41.

Described turning cylinder 48 is provided with the angular transducer (roll diameter obtaining section) 44 of the angle (pivot angle) for detecting reel cage 23.Angular transducer 44 is such as made up of rotary encoder, and the angle signal corresponding with the angle of reel cage 23 is sent to unit controls portion 50 by it.The angle of reel cage 23 changes along with the winding rugosity of package 30.Therefore, detected the pivot angle of reel cage 23 by described angular transducer 44, the roll diameter (diameter of thread layers) of package 30 can be detected thus.In addition, as the method for inspection of roll diameter, except angular transducer 44, the device, absolute encoder etc. that have employed HALL-IC can also be used, as long as the diameter of package can be detected, just can adopt suitable device.

Like this, in automatic bobbin winder 1, walked in cardinal principle direction upwards by the yarn 20 of unwinding from yarn feeding spool 21, and be wound onto in package 30.Therefore, in the present embodiment, as the face of linear vertical of drawing with the direction pulling out yarn 20 from yarn feeder 11 and the face (vertical surface) near yarn feeder 11, almost parallel with the installation surface being provided with automatic bobbin winder 1 (parallel).

Below, be described with reference to the layout of Fig. 3 to the structure near the structure of traverse gear 70 and traverse gear 70.In addition, in the present embodiment, because contact roller 29 configures in the mode axially towards the side of winding unit main body 16, so the lateral plan such as shown in Fig. 3 can be described as the figure of the end on observation at contact roller 29.

As shown in Figure 3, traverse gear 70 has traversing drive motor (traversing actuating device) 76, output shaft (output shaft) 77, traverse arm 74.

Traversing drive motor 76 drives traverse arm 74.Traversing drive motor 76 is such as servomotor.As shown in Figure 2, the action of traversing drive motor 76 is controlled by traversing control part 78.Traversing drive motor 76 also can be other the motor such as stepping motor, voice coil motor.

Traversing control part 78 is made up of the hardware etc. based on special microprocessor.Traversing control part 78 receives the signal from unit controls portion 50 and controls running and the stopping of traversing drive motor 76.

The power of traversing drive motor 76 is passed to the base end part of traverse arm 74 through output shaft 77 as shown in Figure 3.The rotor of traversing drive motor 76 carries out rotating, and thus, traverse arm 74 carries out crankmotion on the Width (the paper vertical direction (left and right directions of Fig. 2) of Fig. 3) of package 30.In addition, the traverse arm 74 in Fig. 3 shows the position of the end of traversing.

Yarn guiding part 73 described later is formed at the leading section of traverse arm 74.Traverse arm 74 can keep (guiding) yarn 20 by yarn guiding part 73.Because yarn guiding part 73 carries out crankmotion under the state that remain yarn 20, so yarn 20 traversing can be made.

Below, the warpage in the yarn road making to produce during yarn 20 traversing is described.

In Fig. 3 of the lateral plan as traverse gear 70, the rotation axis (rotation axis of traverse arm 74) of traversing drive motor 76 represents with symbol L1, represents from the base end part of traverse arm 74 along the imaginary line (line of centers in the side of traverse arm 74) of the straight extraction of length direction the side of traverse arm 74 with symbol L2.Along with the crankmotion of traverse arm 74, yarn guiding part 73 moves back and forth (being called " plane of revolution " by this imaginary plane below) in the mode of drawing the track of arc-shaped in the imaginary plane of the rotation axis L1 perpendicular to traverse arm 74.In the present embodiment, traverse arm 74 generally perpendicularly configures relative to rotation axis L1.Thus, described imaginary line L2 is vertical relative to rotation axis L1.Therefore, can say that traverse arm 74 carries out crankmotion in described plane of revolution.

Yarn diatom L3 be represent traverse arm 74 leading section near the straight line in yarn road (the yarn road from the end of guide plate 28 to contact roller 29).In the present embodiment, this yarn diatom L3 is parallel with the rotation axis L1 of traverse arm 74.In other words, yarn diatom L3 is vertical with described plane of revolution (and imaginary line L2).

In addition, about yarn diatom L3, in addition to the method described above, can also be expressed as " when using with the position being positioned at side, most upstream contacted in yarn 20 that roller 29 contacts as the straight line connecting this P1 and traversing fulcrum 27 when P1 ".In addition, this P1 also can show as " with the point contacting the position that roller 29 contacts representing the yarn 20 led by yarn guiding part 73 ".

Therefore, although yarn guiding part 73 moves back and forth in the mode of the track drawing the arc-shaped centered by rotation axis L1 thus makes yarn 20 traversing, the power be now applied on yarn 20 is on the above-mentioned direction parallel with plane of revolution.That is, owing to can not apply when traversing to make yarn 20 be pulled on the direction (direction along yarn road) of yarn diatom L3 or lax power, therefore, it is possible to alleviate the warpage in yarn road.The warpage in the yarn road of the end of traversing particularly in the present embodiment, due to the end in traversing, configures traverse arm 74 in the mode that the guide point of yarn guiding part 73 is positioned on yarn diatom L3, so can be made to be minimum.In addition, suppose that rotation axis L1 and yarn diatom L3 is not parallel, then on the direction of the yarn 20 in traversing not only in plane of revolution, also stressed on the direction along yarn diatom L3.Therefore, the warpage in yarn road is larger than present embodiment.In this case, the winding tension being wound on the yarn 20 in package 30 can rise, or the hardness of package 30 especially can rise in package end, or skips occur.Consequently.The quality of package 30 reduces.

In addition, as shown in Figure 3, traverse arm 74 has joggling part (kink) 72a to the direction bending close to contact roller 29.In addition, although joggling part 72a is with the structure of steep anxious angle folding (bending), also can be the structure of round and smooth bending (bending).

By this structure, make yarn guiding part 73 close to package 30 and the contact wire contacting roller 29, thus can shorten drift (from traverse arm 74 to the length contacting the yarn 20 that roller 29 contacts) and impress length (print length) (with the length contacting the contiguous yarn 20 of roller 29).Therefore, due to the having stable behavior of reeled yarn 20 can be made, so the quality of package 30 can be improved.

In addition, when package 30 of the cone shape that reeled by doff unit 10, especially wish to adopt the traverse arm 74 with joggling part 72a, the following describes reason.That is, the winding from package 30 to thread layers become large during, on the contact roller 29 of drum (cylindrical shape) and the winding spool 22 (package 30) of cone shape, difference is large.Consequently, relative to the central portion in the winding width direction of package 30, in larger diameter side, winding tension is high, and in smaller diameter side, winding tension is low.Therefore, easily there is skips or package wrinkle in the end of package 30, form bad package.About this point, the traverse arm 74 with joggling part 72a such by present embodiment makes yarn 20 traversing, can while the drift of the yarn 20 of shortening package end (traversing end) and impression length, the warpage of yarn 20 also be alleviated thus, thus can prevent from forming bad package as described above.

Below, the upper yarn seizure parts 26 in catching yarn ends and the position relationship of traverse arm 74 are described.In addition, the upper yarn that figure 3 illustrates in yarn ends seizure catches the position of parts 26.

As shown in Figure 3, the leading section (yarn guiding part 73) of the traverse arm 74 of present embodiment is configured in the vicinity (the contact below of roller 29 and face side) of contact roller 29.This is to shorten drift and impression length.By shortening drift and impression length like this, the having stable behavior of the yarn 20 in winding can be made, thus the quality of package 30 can be improved.

Traverse arm 74 is configured such that yarn guiding part 73 is configured on yarn diatom L3, and arm 72 is configured in the position of keeping out of the way from yarn diatom L3.Specifically, yarn guiding part 73 is arranged on the face side of doff unit 10, and arm 72 is arranged on the inboard of doff unit 10.Therefore, the upper yarn during the traverse arm 74 in traversing and yarn ends catch catches parts 26 can not interfere.Consequently, can positively prevent traverse arm 74 from catching conflicting of parts 26 with upper yarn.Therefore, owing to occurring that making yarn catch parts 26 immediately after Yarn break and yarn cut off turns near package 30, so can carry out as soon as possible connecing yarn action, and promptly again can start the coiling action of package 30.

Below, with reference to Fig. 4, the yarn guiding part 73 that traverse arm 74 has is described.Traverse arm 74 is made up of the yarn guiding part 73 being configured in front, the arm 72 that is configured in base end side.

Yarn guiding part 73 is configured to hook-shaped by pottery and aluminium etc., and is connected to the front of arm 72.As shown in Figure 4, yarn guiding part 73 is formed the shape to curving.The elongated yarn hooking groove (yarn hooking groove) 71 of living yarn 20 for hooking is formed in the inner circumferential side of yarn guiding part 73.Yarn hooking groove 71 forms opening portion (guiding port) 71b with the sidepiece of the side at yarn guiding part 73 and mode along the length direction straight extension in side forward of traverse arm 74 is formed.Terminal part (limiting unit) 71a of yarn hooking groove 71 is close-shaped (front of traverse arm 74 does not open).The end (described opening portion 71b) of the open sides of yarn hooking groove 71 is positioned at the base end side of traverse arm 74 compared with the end (described terminal part 71a) becoming terminal.

When while guide yarn 20 by yarn guiding part 73 while when making yarn 20 traversing thus be wound in package 30 by yarn 20, yarn 20 is positioned at the inside of yarn hooking groove 71.Along with moving back and forth of yarn guiding part 73, the internal face of yarn hooking groove 71 promotes yarn 20, makes yarn 20 relative to package 30 traversing thus.In addition, in the present embodiment, the opening portion 71b of yarn hooking groove 71 is not towards the front of traverse arm 74 but towards base end side.Therefore, be used on yarn 20 even if having towards the masterpiece of the front of traverse arm 74, yarn 20 also can not be deviate from from yarn guiding part 73.

Two rake 73a and 73b are formed at the sidepiece of yarn guiding part 73.Rake 73a extends in the inclined direction from the bending leading section of yarn guiding part 73 towards the opening portion 71b of yarn hooking groove 71.Rake 73b tilts to extend near the 71b of opening portion from the base end part (with the connecting bridge of arm 72) of yarn guiding part 73.Therefore, after the package of package 30 starts and just carried out connecing yarn operation, yarn 20 is from the state that traverse arm 74 is deviate from, traverse arm 74 is rotated to the side (left side of Fig. 4) being formed with rake 73a and 73b, rake 73a and 73b contacts with yarn 20 thus, and yarn 20 can be made under the guiding function of rake 73a and 73b to enter in yarn hooking groove 71 from opening portion 71b.

As discussed above, the automatic bobbin winder 1 of present embodiment comprises reel cage 23, contact roller 29, traverse arm 74, traversing drive motor 76.Reel cage 23 supports in the mode that can rotate the winding spool 22 in order to form package 30 and winding yarn 20.Contact roller 29 contacts with winding spool 22 or package 30 and rotates.Traverse arm 74 makes yarn 20 traversing.The yarn guiding part 73 for guiding yarn 20 is configured with in the front of traverse arm 74.Traversing drive motor 76 pairs of traverse arm 74 carry out rotary actuation.Yarn guiding part 73 has at the terminal part 71a of front restriction yarn 20 and with the opening portion 71b of mode to the base end side opening of traverse arm 74 yarn 20 being guided to this terminal part 71a.When observing at the direction of principal axis contacting roller 29, the rotation axis L1 of traverse arm 74 is parallel with the yarn diatom L3 in the yarn road near the yarn guiding part 73 of the end of expression traversing.

Thus, because rotation axis L1 is parallel with yarn diatom L3, so even if when traverse arm 74 rotates to end, yarn guiding part 73 does not also move on the direction along yarn diatom L3.Therefore, owing to the warpage of yarn 20 can be suppressed in Min., so can prevent the quality of package 30 from reducing.In addition, the yarn hooking groove 71 due to yarn guiding part 73 is the structures entered from the base end side of traverse arm 74 for yarn 20, so, even if in traversing because of vibration and force of inertia etc. pull yarn 20, also can prevent yarn 20 from deviating from from yarn guiding part 73.And, owing to easily yarn 20 can be guided to yarn guiding part 73, so the winding operation of discontinued yarn promptly again can be started, the production efficiency of automatic bobbin winder 1 can be improved.

In the automatic bobbin winder 1 of present embodiment, be formed with rake 73a and 73b of the opening portion 71b guiding yarn 20 to yarn hooking groove 71 at yarn guiding part 73.Thus, can successfully carry out the guiding of yarn 20 to yarn hooking groove 71 after winding starts and connects yarn, therefore, it is possible to improve the production efficiency of automatic bobbin winder 1.

In the automatic bobbin winder 1 of present embodiment, traverse arm 74 with yarn guiding part 73 be in compared with base end side from installation surface (vertical surface) away from the mode of position be bearing in traversing drive motor 76 (output shaft 77).Thus, the configuration due to traverse arm 74 makes yarn guiding part 73 close to package 30 and the contact wire contacting roller 29, so can shorten drift and impression length.

In the automatic bobbin winder 1 of present embodiment, traverse arm 74 has the joggling part 72a to the direction bending close to contact roller 29.Drift and impression length can be shortened thus.Therefore, due to the having stable behavior of the yarn 20 that will be wound in package 30 can be made, so the quality of package 30 can be improved.

In the automatic bobbin winder 1 of present embodiment, there is the package drive motor 41 of directly rotary actuation winding spool 22.Thus, compared with making the structure of the driven rotation of package 30, the diameter contacting roller 29 can be reduced.Therefore, due to drift and impression length can be shortened, so the having stable behavior of the yarn 20 that will reel can be made thus can improve the quality of package 30.

In the automatic bobbin winder 1 of present embodiment, there is yarn feeder 11, device of splicer 14 and upper yarn and catch parts 26.Yarn feeder 11 supplies the yarn 20 that will reel to package 30.The yarn ends of the yarn ends of package 30 side and yarn feeder 11 side links by device of splicer 14.Upper yarn catches parts 26 and can be caught by the yarn ends of upper yarn suction port 35 pairs of package 30 sides and be guided to device of splicer 14.Traverse arm 74 by traversing drive motor 76 (output shaft 77) supporting, and makes attract at upper yarn suction port 35 and catch on the position of the yarn ends of package side, and yarn guiding part 73 is positioned at the upstream side in yarn road compared with upper yarn suction port 35.

Thereby, it is possible to positively prevent yarn guiding part 73 from contacting with upper yarn suction port 35 and damaged.In addition, do not need by yarn catch in the capturing motion of yarn ends that parts 26 carry out traverse arm 74 moved to special retreating position.Therefore, on such as passing through, yarn catches parts 26 and catches the yarn ends of package 30 side and after having carried out the suitable process based on device of splicer 14 grade, again can start the winding operation of yarn 20 as soon as possible.In addition, when adopt make the doff unit 10 of yarn 20 traversing and wound package 30 by traverse arm 74 as embodiment described above, owing to carrying out rotary actuation by traversing drive motor 76 pairs of traverse arm 74, so, freely can change the width of reeled package 30.Therefore, the doff unit 10 of present embodiment can either make yarn 20 traversing form package 30 to the position of the end close to winding spool 22, also can make yarn 20 traversing in the narrow width in region on the direction of principal axis of winding spool 22 near central portion and form package 30.In Yarn winding apparatus in the past, when the winding width of package is narrow, if the position making this yarn guide portion material of traverse arm (yarn guiding part) Xiang Buyu interfere when catching the yarn ends of package side by yarn guide portion material is kept out of the way, compared with situation about then reeling with the package of end position winding width being positioned to the close spool that reels, the distance that yarn guiding part is kept out of the way is elongated.Therefore, carrying out yarn by yarn guide portion material guides the operating efficiency of doff unit during action low.But, in the present embodiment, even if when the winding width of package 30 is narrow, also efficiency can catch by upper yarn the capturing motion etc. that parts 26 carry out yarn ends well.

The automatic bobbin winder 1 of present embodiment has traversing fulcrum 27.Traversing fulcrum 27 is fulcrums of the traversing of the yarn 20 that will be wound in package 30.When observing at the direction of principal axis contacting roller 29, at least in the end of package 30, make the line point P1 at the position of the side, most upstream of the yarn 20 represented on contact roller 29 and traversing fulcrum 27 coupled together be yarn diatom L3, order represents that the line along the length direction of traverse arm 74 is imaginary line L2.In the case, yarn diatom L3 and imaginary line L2 is approximate right angle.

Thus, even if the end of the traverse stroke in traverse arm 74, the situation that will be wound up into yarn 20 in the package 30 significantly warpage because of yarn guiding part 73 also can be alleviated.Therefore, it is possible to prevent yarn 20 from deviating from from yarn guiding part 73, and the few yarn 20 of damage can be wound in package 30.

In the automatic bobbin winder 1 of present embodiment, traverse arm 74 is configured in yarn guiding part 73 mode that yarn 20 contacts the near sites of roller 29 at first and is bearing on traversing drive motor 76 via output shaft 77.Drift and impression length can be shortened thus.Consequently, due to the having stable behavior of the yarn 20 that will be wound in package 30 can be made, so the generation of skips and winding wrinkle etc. can be suppressed, and the quality of package 30 can be improved.

Below, the first variation of above-mentioned embodiment is described with reference to Fig. 5.In addition, in the explanation of following variation, exist and mark identical Reference numeral in the drawings and situation about omitting the description to the same or similar parts of aforesaid embodiment.

In the above-described embodiment, be the rotation axis L1 of traverse arm 74 layout parallel with yarn diatom L3.In the first variation, be following such layout: when by yarn diatom L3a to from package 30 away from direction overtime, rotation axis L1a and yarn diatom L3a angularly θ and crossing.In this variation, the line of drawing from the base end part of traverse arm 74 to yarn guiding part 73, i.e. imaginary line L2a are not rectangular relative to yarn diatom L3a but are approximate right angle.Here, so-called " approximate right angle ", refers to and not only comprises extremely close to the angle at right angle, also comprises the angle of the imaginary line L2a of Fig. 5 wider scope such with yarn diatom L3a angulation.

In the automatic bobbin winder 1 of the first variation, when side-looking (when the direction of principal axis of contact roller 29 is observed), the vertical line L4a that intersection point P2 (in other words, the position of yarn guiding part 73) and the base end part from traverse arm 74 of imaginary line L2a and yarn diatom L3a guide yarn diatom L3a into is positioned at the downstream in yarn road compared with the intersection point P3 of yarn diatom L3a.

Thus, by making traverse arm 74 be suitable length, package 30 can be made and contact the contact wire of roller 29 close to yarn guiding part 73, therefore, it is possible to shorten drift and impression length.Therefore, due to the having stable behavior of the yarn 20 that will reel to package 30 can be made, so the quality of package 30 can be improved.

In addition, in the first variation, angle θ is acute angle, and this angle θ less (rotation axis L1a gets over close to parallel with the relation of yarn diatom L3a), more can reduce the warpage in the yarn road of the end of traversing.

Below, with reference to Fig. 6, the second variation is described.In above-mentioned embodiment and the first variation, the imaginary line L2 of traverse arm 74 tilts relative to the installation surface of doff unit 10, but in the second variation, configure traverse arm 74 to make the imaginary line L2b of traverse arm 74 mode parallel relative to the installation surface of doff unit 10.In addition, also traverse arm 74 can be configured in the mode that the imaginary line L2b of traverse arm 74 is almost parallel relative to the installation surface of doff unit 10.

Thus, in above-mentioned embodiment and the first variation, yarn 20 is warpage due to guide plate 28, but in the second variation, achieves the layout of the yarn 20 that makes from yarn feeder 11 to traverse arm 74 warpage hardly.

In addition, the yarn guiding part 73 in the second variation, compared with the yarn guiding part 73 of above-mentioned embodiment, remotely configures from package 30 with the contact wire contacting roller 29.Therefore, from the viewpoint shortening drift and impression length, the layout comparison of above-mentioned embodiment is good.

Be explained above the preferred embodiment of the present invention and variation, but above-mentioned structure example is if change as follows.

Doff unit 10, except can forming the package of cheese shape, can also form the package of the various shape such as cone shape and cone-shaped.

The shape of yarn guiding part 73 is not limited to the example shown in above-mentioned embodiment.Such as can will form the yarn hooking groove of longer elongated hole-shape to the part of terminal part 71a from opening portion 71b.In this case, can more effectively prevent the yarn in traversing from deviating from.

In the above-described embodiment, have employed the layout that the rotation axis L1 of traverse arm 74 is parallel with yarn diatom L3.Also can replace, adopt the layout that the rotation axis L1 of traverse arm 74 and yarn diatom L3 is almost parallel.

In above-mentioned embodiment and variation, it is the structure that winding unit main body 16 has a device of splicer 14 and upper yarn seizure parts 26 respectively.Also can replace, adopt to have to connect yarn chassis etc. thus make to connect yarn chassis etc. when needing to connect yarn and move to this winding unit main body 16 to carry out connecing the structure of yarn.But, just can start arrival of yarn chassis waiting need not be waited to connect in the such structure of the above-mentioned embodiment of yarn action, start to connect yarn action traverse arm 74 and upper yarn immediately and catch parts 26 even if can play better and also can not to conflict this effect of the present invention.

In above-mentioned embodiment and variation, it is the structure that package drive control part 42 and traversing control part 78 are arranged independent of unit controls portion 50.Also can replace, adopt unit controls portion 50 to have at least either party structure in package drive control part 42 and traversing control part 78.

In above-mentioned embodiment and variation, contact roller 29 is formed with drum (cylindrical shape), but the shape of contact roller 29 is not limited to above-mentioned shape.Such as, when the package of the cone shape that reels, the shape of contact roller 29 also can be made to be cone shape in the same manner as winding spool 22.Specifically, the diameter of the larger diameter side of contact roller also can be made to be more than 1.1 less than 1.8 relative to the ratio of the diameter of smaller diameter side.In addition, the diameter of the larger diameter side of the common winding spool 22 utilized when the package 30 of the cone shape that reels is 1.6 or 1.8 relative to the ratio of the diameter of smaller diameter side.Make yarn 20 be stamped on contact roller 29 after be wound in the automatic bobbin winder 1 of the structure of the package 30 of cone shape, owing to producing difference in package 30 with contact between roller 29, so yarn 20 can contact slip on roller 29.Therefore, the diameter contacting roller 29 is set by giving ratio in larger diameter side and smaller diameter side in this wise, compared with the structure that will contact roller 29 and formed drum, can reduce to contact the difference produced between roller 29 and package 30, thus the slip of the yarn 20 be stamped on contact roller 29 can be alleviated.Thereby, it is possible to prevent the skips etc. of the incidental larger diameter side when being wound into the package 30 of cone shape, the package 30 of high-quality can be formed.

In above-mentioned embodiment and variation, package drive motor 41 is the structures driving package 30.Also can replace, adopt and drive contact roller 29 by suitable actuating device and make the structure of the driven rotation of package 30.

In above-mentioned embodiment and variation, it is the structure being supplied yarn feeding spool 21 by bobbin convey system to yarn feeder 11, but also can replace, adopt the structure supplying yarn feeding spool 21 from the feed system of the yarn storehouse formula being located at winding unit main body 16 to yarn feeder 11.

Above-mentioned embodiment and variation are not limited to automatic bobbin winder, can be widely used in volume and return the Yarn winding apparatus such as machine and spinning frame (such as air type weaving loom, free-end spinning machine).And, the automatic bobbin winder with yarn accumulation device can be applied to.

Claims

1. a Yarn winding apparatus, is characterized in that, has:

Mound bobbins support, supports the mound bobbins in order to form package and winding yarn in the mode that can rotate;

Contact roller, contacts with described mound bobbins or described package and rotates;

Traverse arm, for making yarn traversing, is configured with the yarn guiding part for guiding yarn in the front of this traverse arm;

Traversing drive division, carries out rotary actuation to described traverse arm,

Be wound up into the traversing fulcrum of the yarn in described package,

Wherein, described yarn guiding part has:

In the limiting unit of front restriction yarn;

Yarn to be guided to the guiding port of mode to the base end side opening of described traverse arm of described limiting unit; With

By the rake that yarn guides to described guiding port,

When the direction of principal axis of described contact roller is observed, the rotation axis of described traverse arm and the position of the side, most upstream by the described yarn contacted on roller and the straight line that described traversing fulcrum connects be acute angle to intersect or parallel.

2. Yarn winding apparatus as claimed in claim 1, is characterized in that,

Described rotation axis and described straight line almost parallel.

3. Yarn winding apparatus as claimed in claim 1, is characterized in that,

When the direction of principal axis of described contact roller is observed, the vertical line that position and the base end part from described traverse arm of the described yarn guiding part of the end of traversing guide described straight line into is positioned at the downstream in yarn road compared with the intersection point of this straight line.

4. Yarn winding apparatus as claimed in claim 1, is characterized in that,

There is the yarn feeder supplying the yarn that will reel to package,

As the face with the linear vertical of drawing in the direction of drawing yarn from described yarn feeder, using the face near this yarn feeder as vertical surface,

Described traverse arm is supported by described traversing drive division in the mode being parallel to described vertical surface in the longitudinal direction.

5. Yarn winding apparatus as claimed in claim 1, is characterized in that,

There is the yarn feeder supplying the yarn that will reel to package,

The mode that described traverse arm is in apart from described vertical surface position far away with yarn guiding part compared with base end side is supported by described traversing drive division.

6. the Yarn winding apparatus according to any one of claim 1 to 5, is characterized in that,

Described traverse arm has to the bending curve in the direction close to described contact roller.

7. the Yarn winding apparatus according to any one of claim 1 to 5, is characterized in that,

There is the rotary driving part of directly mound bobbins described in rotary actuation.

8. Yarn winding apparatus as claimed in claim 6, is characterized in that,

9. the Yarn winding apparatus according to any one of claim 1 to 5, is characterized in that, has:

Yarn feeder, supplies the yarn that will reel to package;

Yarn splicing device, links the yarn ends of the yarn ends of described package side and described yarn feeder side; With

Yarn guide member, can catch by attracting the yarn ends of oral area to described package side and guide,

Described traverse arm is supported by described traversing drive division, and makes attract at described attraction oral area and catch the position of the yarn ends of described package side, and described yarn guiding part is positioned at the upstream side in yarn road compared with described attraction oral area.

10. a Yarn winding apparatus, is characterized in that, has:

Yarn feeder, supplies the yarn that will reel to package;

Mound bobbins support, supports the mound bobbins in order to form described package and winding yarn in the mode that can rotate;

Traverse arm, for making yarn traversing, is configured with the yarn guiding part for guiding yarn in the front of this traverse arm; With

Be wound up into the traversing fulcrum of the yarn in described package,

Wherein, described yarn guiding part has:

In the limiting unit of front restriction yarn;

By the rake that yarn guides to described guiding port,

When the direction of principal axis of described contact roller is observed, at least in the end of described package, relative to the straight line that the position of the side, most upstream by the yarn on described contact roller is connected with described traversing fulcrum, the line along the length direction of described traverse arm is approximate right angle.

11. Yarn winding apparatus as claimed in claim 10, is characterized in that,

There is traversing drive division, this traversing drive division supports the S. A. of described traverse arm and carries out rotary actuation to described traverse arm, and described traverse arm is supported by described traversing drive division in the mode near make described yarn guiding part be configured in position that yarn contacts described contact roller at first.

12. Yarn winding apparatus as described in claim 10 or 11, is characterized in that,