CN1270955C

CN1270955C - Yarn winder

Info

Publication number: CN1270955C
Application number: CN02143970.2A
Authority: CN
Inventors: 桥本欣三; 中出一彦
Original assignee: Murata Machinery Ltd
Current assignee: Murata Machinery Ltd
Priority date: 2001-10-02
Filing date: 2002-09-29
Publication date: 2006-08-23
Anticipated expiration: 2022-09-29
Also published as: EP1300357A1; JP3724402B2; EP1300357B1; JP2003113544A; DE60209843T2; CN1408630A; DE60209843D1

Abstract

The present invention relates to a yarn winder that uses tension detecting method to obtain accurate tension value regardless of winding diameter of a yarn package in a yarn winder. The yarn winder includes a bobbin holder H that is set with at least a bobbin B for winding at least a yarn S, a contact roller C that rotates while contacting against at least a yarn package P, a traverse device T that is provided to an upstream side of the contact roller C and traverses the yarn S the is fed, a traverse fulcrum guide 1 that is to be a traverse fulcrum of the yarn that S is traversed in the upstream side of the traverse device, and a tension detector 3 that is located between the traverse device T and the traverse fulcrum guide 1 and that detects tension of the yarn S by contacting the yarn S against a contact element 4 at both ends of an amplitude of the traverse. In such a yarn winder, each of distances during the winding process, between the traverse fulcrum guide and the tension detector, between the tension detector and the traverse device, and between the traverse fulcrum guide and the traverse device, is maintained constant regardless of winding diameter of the yarn package.

Description

Yarn winding machine

Technical field

The present invention relates to a kind of for example Yarn winding machine of regenerated fiber of filament yarn that is used for batching continuously, it comprises a tension detector that is used to monitor yarn tension in coiling process.

Background technology

For from a spinning machine to a bobbin batch the filament yarn of the regenerated fiber of melt-spun continuously, simultaneously by the control method of batching the Yarn winding machine of this filament yarn of traverse gear side travel, knownly mainly contain two kinds of methods, a kind of is with the yarn speed control method of yarn speed as controlled target, and a kind of is with the yarn tension control method of yarn tension as target.

The problem of yarn speed control method is that when traversing velocity variations in coiling process, yarn tension also changes, and is difficult to control this variation in the yarn tension.

On the other hand, the yarn tension control method can form gratifying yarn package and can not occur expanding or saddle.Therefore, the yarn tension control method is considered to be in a kind of very effective technology of implementing the coiling technique of traversing velocity variations in the coiling process.

Under the situation that adopts the yarn tension control method, need be provided for by contact the tension detector that detects yarn tension with yarn.Yet,, can cause yarn qualities to worsen if tension detector contacts with the yarn that runs at high speed usually.Therefore, in order to reduce adverse effect as far as possible, a kind of method that is used to detect yarn tension has been proposed to yarn.This method is provided with tension detector being close under the traversing fulcrum, this tension detector comprises a contact member (for example, open No.51-44668 of Japanese Patent and the open No.60-47985 of Japanese Patent) with the little contact in amplitude two ends of the yarn that traverses as pendulum swing.

In the Yarn winding machine that adopts the yarn tension control method, traverse fulcrum guide and tension detector can be installed on the fixed mount, and traverse gear and touch roll can be set in the lifting unit.When passing traverse fulcrum guide and tension detector and the yarn that traverses by a traverse gear and when making this yarn and touch roll form yarn package simultaneously, comprise that the lifting unit of touch roll can be raised along with the increase of batching diameter of yarn package by batching.Consequently, can suitably keep contact pressure with yarn package.Yet, along with traverse gear because the lifting of lifting unit and near the fulcrum guide that fixedly traverses, the angle of traversing of the yarn that traverses as to the pendulum swing increases, and yarn firmly is pressed on the contact element of tension detector at the two ends of amplitude.Consequently, the problem that can not obtain accurate tension value will be produced.

Summary of the invention

The purpose of this invention is to provide a kind of in particular for the device that is used to obtain accurate tension value in the Yarn winding machine that is suitable for the mentioned strain method of inspection.According to a first aspect of the invention, provide a kind of Yarn winding machine, it comprises: the bobbin holding element, and this bobbin holding element is provided with at least one bobbin, to be used to batch at least one one thread; With the touch roll of rotation when at least one yarn package contacts; The traverse gear that is arranged on the touch roll upstream side and the yarn of feeding is traversed; The fulcrum guide that traverses as the fulcrum that traverses of the yarn that traverses at the traverse gear upstream side; And at traverse gear with traverse between the fulcrum guide and by making contact member contact the tension detector that detects yarn tension with the yarn that is positioned at the amplitude two ends of traversing.In addition, in coiling process, distance between distance, tension detector and the traverse gear between fulcrum guide and the tension detector of traversing and the distance between fulcrum guide and the traverse gear of traversing are set to batching diameter and how all keeping constant of yarn package no matter.According to the present invention, by when as pendulum swing, traversing and the yarn of operation simultaneously contacts with tension detector at the amplitude two ends so that when measuring yarn tension, make service conditions keep constant, thereby aforementioned each distance is provided with respectively consistently, thereby can obtain accurate tension value.

According to a second aspect of the invention, the present invention preferably is applied to Yarn winding machine, and wherein, traverse guide and a tension detector are installed on the lifting unit, described lifting unit comprises traverse gear, and along with yarn package batches the increase of diameter and promotes.

According to a third aspect of the present invention, the present invention can be applied to Yarn winding machine, and wherein, the bobbin holding element batches the increase of diameter along with yarn package and descends, and suitably keeps the contact pressure of yarn package with respect to touch roll.

Description of drawings

Fig. 1 represents the lateral plan of the schematic construction of Yarn winding machine according to an embodiment of the invention.

Fig. 2 is the front elevation of the major part of the Yarn winding machine in the presentation graphs 1.

Fig. 3 is the transparent view that traverse a fulcrum guide and a tension detector of the Yarn winding machine among Fig. 1 are shown.

Fig. 4 is the lateral plan that is illustrated in the Yarn winding machine shown in Fig. 1 under the condition of operating beginning of entrying.

Fig. 5 A and 5B are the lateral plans that is illustrated in the normal yarn coiling process corresponding to the major part of a bobbin of Yarn winding machine shown in Figure 1.Fig. 5 A represents the state that the diameter of yarn package is less.Fig. 5 B represents the state that the diameter of yarn package is bigger.

Fig. 6 represents the front elevation of the major part of Yarn winding machine in accordance with another embodiment of the present invention.

The specific embodiment

Now, one embodiment of the present of invention will be described, wherein, the present invention is applied to a Yarn winding machine, this Yarn winding machine is when utilizing a traverse gear that the regenerated fiber filament yarn is traversed, form a yarn package by batching, described regenerated fiber filament yarn is formed by a continuous melt-spun of spinning machine.

Fig. 1 be according to an embodiment of the invention a Yarn winding machine M the lateral plan of schematic construction.A plurality of bobbin B are arranged on the bobbin holding element H, so that can form a plurality of yarn package P simultaneously.In the drawings, four bobbin B are arranged on the bobbin holding element H, yet the bobbin number that is arranged on the bobbin holding element H also can be six, eight, 12 or the like.The machine body K of Yarn winding machine M is provided with bobbin holding element H and lifting unit U who is used to keep a plurality of bobbin B, and described lifting unit U comprises a traverse gear T and a touch roll C.Lifting unit U can rise and descend with respect to machine body K.Yarn winding machine M is configured to along with the increase of batching diameter by reel for yarn is gone up the package P that forms around bobbin B, and described touch roll C rises, so that keep suitable contact pressure.

Touch roll C is cylindrical, and H be arranged in parallel with the bobbin holding element, and rotatably is supported on the housing of lifting unit U.This bobbin holding element H is cylindrical, and it is supported on the machine body K with cantilevered fashion, and is rotatable and is driven by motor (not shown in FIG.).Usually, in Yarn winding machine M, two bobbin holding element H are 180 degree and are spaced apart and arranged on the turret plate, described turret plate is rotatably installed on the machine body K, and a bobbin holding element H is set on the winding position, and another bobbin holding element H is arranged on the spare space.In Yarn winding machine M shown in Figure 1, be in turret plate on the spare space and bobbin holding element H and be simplified and illustrate.

As shown in Figure 2, lifting unit U comprises traverse gear T and touch roll C.Revolving scraper traverse gear, cam traverse gear or like are used as traverse gear T.Traverse gear T is provided with one and is used for along the guide 12 that traverses of horizontal direction guiding yarn S.

On lifting unit U, from the upstream side of thread path downstream side be sequentially with traverse fulcrum guide 1 and tension detector 3.This traverse fulcrum guide 1 and tension detector 3 are installed on the load-carrying element 9, and described load-carrying element 9 is connected on the housing of lifting unit U.Consequently, in coiling process (when yarn S is winding on the bobbin B), regardless of the diameter that batches of yarn package P, the distance of traversing between fulcrum guide 1 and the tension detector 3 is set to steady state value.In other words, fulcrum guide 1 traverses, tension detector 3 and traverse gear T are connected on the lifting unit U, so that formation one, and shown in Fig. 5 A of the diameter of expression yarn package P situation hour, and shown in Fig. 5 B that the expression reel for yarn changes the diameter of the P situation when big, no matter how yarn package P batches diameter, in the Yarn reeling process, from the distance L 1 of fulcrum guide 1 of traversing to tension detector 3, distance L 2 from tension detector 3 to traverse gear T, and be set to steady state value respectively to the distance L 3 of traverse gear T from the fulcrum guide 1 that traverses.

The upstream side that is arranged on the yarn service direction with respect to the traverse gear T fulcrum guide 1 that traverses is determined a normal place at yarn S by traverse gear T when a side direction opposite side traverses.In coiling process, this normal place roughly is arranged on the bisector N of the width that traverses of traverse gear T.In addition, traverse fulcrum guide 1 by ways 14 guiding that are installed on the load-carrying element 9.Traversing fulcrum guide 1 can be along axially the moving towards the end (free end) of bobbin holding element H of bobbin holding element H, moves to the operating position of entrying of a starting stage shown in Fig. 4 from the normal place shown in Fig. 1.Shown in the enlarged view among Fig. 3, the fulcrum guide 1 that traverses is formed with the annular targeting part 1a that a yarn S passes therethrough, and a pedestal 1c who supports this targeting part 1a.In addition, form a recess 1b at the suitable part place of targeting part 1a, so that yarn S can be easily inserted among the annular section 1a.

As shown in Figure 1, tension detector 3 is arranged at and traverses between fulcrum guide 1 and the traverse gear T, and detects the tension force pass the yarn S that traverses fulcrum guide 1 and traversed by traverse gear T.For the connecting cable that is used for sending the tension force detection signal to the controller of suitable setting, tension detector 3 is fixed on the strut member 9, and roughly be arranged on the bisector N of the width that traverses of each corresponding traverse gear T, and in coiling process, be positioned at below the normal place that is close to the fulcrum guide 1 that traverses.As shown in Figure 3, tension detector 3 comprises: 5, one on axle that yarn S is remained on 4, one of contact members and contact member 4 interlockings on the tension force detection position is installed in pressure sensitive sensor 6 on axle 5 left and right sides and one near pedestals 7 and supports this pedestal of 57.Slot with suitable length along the axial direction of axle 5 by center-point, on contact member 4, form a yarn storage area 4a from contact member 4.In addition, the insertion targeting part 4b with hypotenuse is set in limit, the left and right sides portion of contact member 4, so that clamp storage area 4a.Storage area 4a is one and is used for yarn S is remained on part on the tension force detection position.Insert targeting part 4b,, yarn S is guided the storage area 4a that enters as the tension force detection position by the yarn S transverse motion constantly of entrying in the starting stage.

Tension detector 3 is measured the tension force of yarn S in the following manner in coiling process.

As shown in Figure 3, when the yarn S that passes the fulcrum guide 1 that traverses was inserted into the storage area 4a that passes contact member 4 and batches, this yarn S traversed from a side direction opposite side by traverse gear T, shown in the long and two-short dash line among Fig. 3.Thereby because yarn S is crushed on the left and right sides inward flange of storage area 4a, institute is so that axle 5 conversion, so that by contact member 4 lateral vibration.The pressure sensitive sensor 6 that is installed on the axle 5 detects the size that is applied to the power on the axle 5 when yarn S contacts with contact member 4, and calculates the tension force of yarn S according to the size of detected value.The tension detecting method that is used for present embodiment can make the minimum that influences for yarn S, this be because the time that tension detector 3 and yarn S are in contact with one another very short, and with tension detector 3 contact processs in yarn S bending very little.

And then for the tension force detection of sensitivity, the contact member 4 and the axle 5 of tension detector 3 are preferably light as much as possible.In this, the left and right edges of contact member 4 ends preferably is tapered by the insertion targeting part 4b with hypotenuse.In other words, thus inserting targeting part 4b also helps to dwindle the weight saving that makes contact member 4 towards end by the width that makes contact member 4.

In order each yarn S to be wound up on a plurality of bobbin B that are arranged on the bobbin holding element H simultaneously, the Yarn winding machine M of the embodiment of the invention is provided with the fulcrum guide 1 that traverses, tension detector 3 and the traverse gear T that is used for each bobbin B.

Along with the diameter that batches of yarn package P increases, lifting unit U rises, so that touch roll C is kept suitably with respect to the contact pressure of yarn package P.Because shown in Fig. 5 A and 5B, traverse gear T, traverse fulcrum guide 1 and tension detector are done as a whole along with the lifting unit U that rises rises, thus from traverse fulcrum guide 1 to the distance L 1 of tension detector 3, from tension detector 3 to traverse gear T distance L 2 and also keep steady state value from the fulcrum guide 1 that traverses respectively to the distance L 3 of traverse gear T.Therefore, when by with the contact member 4 of tension detector 3 as pendulum oscillating type ground traverses and simultaneously the amplitude two ends of the yarn S of operation be pressed on the yarn S so that during the tension force of detection yarn S, can make angle θ 1 and angle θ 2 remain steady state value.Thereby, can obtain accurate tension value.And then, angle θ 1 be traverse between fulcrum guide 1 and the tension detector 3, yarn S is with respect to the bisector N bevelled angle of the width that traverses of traverse gear T.Angle θ 2 be between tension detector 3 and traverse gear T, yarn S is with respect to the angle of inclination of bisector N.

And then, in the present invention, traverse gear T and the distance between the fulcrum guide 1 of traversing, the distance between fulcrum guide 1 and the tension detector 3 of traversing and the distance between traverse gear T and the tension detector 3, in coiling process, keep constant respectively, the present invention can be applied among the Yarn winding machine M like this, and described Yarn winding machine is along with the diameter that batches of yarn package increases its lifting unit U and rises along touch roll C.In addition, as shown in Figure 6, the present invention can be applied in the Yarn winding machine, and this Yarn winding machine descends bobbin holding element H by the increase of batching diameter along with yarn package P in the direction of arrow D, and yarn package P is kept suitably with respect to the contact pressure of touch roll C.

According to a first aspect of the invention, thereby by when making the yarn that as pendulum swing, traverses contact the detection yarn tension with tension detector at the amplitude two ends of yarn in the coiling process, it is constant that its condition keeps, and the diameter that batches regardless of package all can obtain accurate tension value.Thereby, can obtain the special quality yarn package of Tension Control in expected value.

Under by the situation suitable, especially can be preferably applied to second aspect of the present invention along with the contact pressure maintenance of batching diameter increase, touch roll and yarn package of yarn package.Thereby distance between traverse gear and the distance between the fulcrum guide of traversing, distance, traverse gear and the tension detector between fulcrum guide and the tension detector of traversing and the pass between each distance tie up in the coiling process and can keep constant at an easy rate respectively.

According to a third aspect of the present invention, thereby even under the suitable situation of the contact pressure that makes bobbin holding element decline maintenance yarn package and touch roll by progress, also can not be subjected to the diameter that batches of yarn package to obtain accurate yarn tension value along with Yarn reeling with influencing.Therefore, can obtain yarn tension is controlled at the special quality yarn package of expected value.

Claims

1, a kind of Yarn winding machine comprises:

The bobbin holding element, this bobbin holding element is provided with at least one bobbin, to be used to batch at least one one thread;

With the touch roll of rotation when at least one yarn package contacts;

The traverse gear that is arranged on the touch roll upstream side and yarn is traversed;

The fulcrum guide that traverses, this fulcrum guide fulcrum that traverses that traverses as the yarn that traverses in the traverse gear upstream;

At traverse gear and the tension detector between the fulcrum guide of traversing, this tension detector detects with the tension force to yarn by making the place, amplitude two ends and a contact element contacts of yarn at the yarn that traverses;

Wherein, in coiling process, regardless of the diameter that batches of yarn package, distance between distance, tension detector and the traverse gear between fulcrum guide and the tension detector of traversing and the distance of traversing between fulcrum guide and the traverse gear keep constant respectively.

2, Yarn winding machine as claimed in claim 1 is characterized in that, traverse fulcrum guide and tension detector are installed on the lifting unit, and this lifting unit comprises a traverse gear, and rises along with the increase of batching diameter of yarn package.

3, Yarn winding machine as claimed in claim 1 is characterized in that, the bobbin holding element descends along with the increase of batching diameter of yarn package, so that yarn package is kept suitably with respect to the contact pressure of touch roll.