JP2011522131A - False twisting device - Google Patents

Abstract

  The present invention relates to a false twisting device which is formed of a large center disk and a plurality of disks which are arranged around the center disk and are rotatably supported in parallel with the center disk. Thereby, a plurality of yarns can be twisted simultaneously. The disk arranged around has entered the grooved disk so that a narrow gap is formed. In this gap, the yarn to be twisted is clamped, so that the force applied to the yarn by the disk is reliably transmitted to the yarn. In order to add an additional twist of the yarn, the yarn is guided through the side of the disc and the side of the center disc, or for each yarn runway, two each arranged around the center disc. The disk forms one disk pair, which is arranged with the center disk so as to overlap and overlap in the axial direction so that it travels through the disks. The yarn is twisted.

Description

  The present invention is a false twisting device according to the upper conceptual part of claim 1, that is, a false twisting device, provided with a disk-shaped twisting member that is rotatably supported and cooperates with each other, The present invention relates to a type in which a twisted yarn is passed between the twisted members so that the yarn comes into contact with both twisted members.

  The false twisting device is a component part of the false twist textured machine. Such a false twisting device is known as a frictional false twisting device that rotates in a direction orthogonal to the yarn traveling direction, and the yarn twisted via such a false twisting device is the yarn traveling direction. Is guided around the false twisting device so that a frictional force acting perpendicularly to the yarn acts on the yarn. It is also known to clamp the yarn between two twisted members.

  Friction false twisting devices have rotating twisted disks that are arranged one above the other and partially overlap, and are twisted through the gap formed by the overlap of these twisted disks. The thread is guided. The twisted disks are in this case arranged so that the yarn is not clamped between the twisted disks. Yarn tension or stress prevents the yarn from sliding past the rotating twisted disk. The basic principle is shown in German Offenlegungsschrift 2,317,630. A configuration is also known in which stacked disks, that is, disks arranged one after the other in the axial direction are provided on three axes arranged parallel to each other at the apex of the triangle. In this case, the yarn to be twisted travels in the form of a screw through the central axes of the three axes. Such a device is known, for example, based on EP 1664406 B1. It is also known, for example, according to U.S. Pat. No. 3,921,379, to cooperate the disk with a grooved disk in order to increase winding or contact.

  The clamp type false twisting device clamps the yarn between two members, and at least one member is elastically formed. This elastic member is two belts that intersect each other or two elastic disks that are offset from each other, and these belts or elastic disks use the movement components acting in opposite directions at the clamp point as a thread. The yarn is twisted by acting against it. In addition, a conveying component in the yarn traveling direction is also provided. As an example for a friction-type device for clamping the yarn, DE 2952305 A1 can be mentioned.

  Both configurations have advantages and disadvantages. The frictional false twisting device basically has the risk that the frictional force is not sufficient to twist the yarn. If the frictional force is not sufficient, the yarn slips and slips, and so-called surging occurs.

  On the other hand, in a friction device that clamps a yarn, two twisting members that rotate in opposite directions may come into contact with each other on a large surface, thereby increasing friction.

  Also, usually only one yarn can be processed per friction device. This not only increases the required space, but inevitably increases the investment cost. Certainly, it is known that a plurality of triaxial friction devices are closely arranged in accordance with Japanese Patent Laid-Open No. 52-124958, and in this configuration, an additional position capable of twisting another position is known. Yarn track is born. However, this known device can only be changed with difficulty in terms of drive technology and bearing technology.

  Therefore, the object of the present invention is to improve a false twist textured machine designed for a plurality of yarns, an economically advantageous friction device for a plurality of yarns, which is simple and inexpensive to drive. It is to provide a friction device that promises technology and support technology.

  In order to solve this problem, in the configuration of the present invention, a disk-shaped twisting member that is rotatably supported and cooperates with each other is provided, and a yarn to be twisted is interposed between the twisting members. In a false twisting device of a type in which the yarn is brought into contact with both twisting members, a center disk arranged in the center as a twisting member is arranged in a circle around the center disk. A plurality of yarns are twisted in cooperation with the plurality of discs so that the diameter of the center disc is at least 1.5 times the diameter of the surrounding disc.

  That is, the above-mentioned problem is that a large center disk arranged at the center serves as a twisting member and cooperates with a plurality of small disks arranged in a circle in parallel with the axis around the center disk to be positioned around the center disk. This is solved by a false twisting device which is configured such that the yarn running parallel to the axis is twisted by the disk.

  In another configuration of the invention, one of the disks has a groove in the collection portion to form a grooved disk. The twisting member that cooperates with the grooved disk is configured as a disk that enters the groove of the grooved disk.

  In order to assure uninjured thread run-in and run-out with respect to the overlap between the grooved disk and the surrounding disk, the disk groove and outer periphery have a rounded chamfered cross section. Yes.

  In another configuration of the invention, a crimping means is provided, which presses the disk against the grooved disk, leaving a very narrow gap between the surfaces, whereby the surfaces rub against each other. There is no contact and on the other hand the thread is clamped between both surfaces.

  In another advantageous configuration of the invention, in the cross section, the radius of the groove and the radius of the disk are matched so that the clamping point is located at the bottom of the groove. As a result, the thread that passes through in parallel to the axis is guided through the outer periphery of the disk and the side surface of the grooved disk, and as a result, additional twist is added to the thread.

  In another configuration of the invention, the false twisting device has a plurality of grooved disks arranged in the axial direction.

  In an alternative configuration, a single grooved disk has a plurality of grooves, and each disk is assigned or correspondingly arranged in each groove for each yarn running path, or one for each yarn running path. One disc is used, which disc has one or more grooves, so that the resulting side faces according to the invention cooperate with the grooves of the grooved disc.

  In another alternative configuration, each yarn is twisted by a center disk and two other disks. The three disks overlap each other and are arranged one after the other in the yarn traveling direction. These discs are rotated in the same direction and at the same peripheral speed by one driving means. Since the plurality of yarns are twisted by the center disk, the center disk is surrounded by a plurality of disk pairs.

  The two separate disks are driven by a center disk via, for example, one intermediate wheel.

  In another drive type, the two separate disks are driven by a center disk using a belt.

  It is advantageous if a plurality of center disks and peripheral disks are arranged one after the other in the axial direction and the same yarn is twisted by these disks.

  Next, embodiments of the present invention will be described with reference to the drawings.

It is a top view which shows one Embodiment of the false twist apparatus by this invention. It is sectional drawing which shows one Embodiment of the false twist apparatus by this invention. It is sectional drawing which shows another embodiment of the false twist apparatus by this invention. It is sectional drawing which shows another embodiment of the false twist apparatus by this invention. It is a top view which shows 2nd Embodiment of the false twist apparatus by this invention. FIG. 6 is a plan view showing a modified embodiment of the embodiment shown in FIG. 5. FIG. 6 is a plan view showing the embodiment shown in FIG. 5 together with an alternative driving device. FIG. 8 is a side view showing the embodiment shown in FIG. 5 together with a drive device of a different type from FIG. 7.

  FIG. 1 is a plan view of a false twisting device according to the present invention viewed from above. Since the center disk 1 cooperates with a plurality of disks 4, a plurality of yarns 6 can be twisted by one false twisting device. A center disk larger than the disk 4 makes it possible to provide a large number of disks 4 around the center disk 1 and thus to twist a large number of yarns 6 simultaneously.

  FIG. 2 shows a false twisting device according to the invention in a sectional view. The grooved disk 1 has an annular groove 2 on its outer periphery. The disk 4 enters the groove 2, and as a result, a narrow gap 11 is formed at the groove bottom of the groove 2. The thread 6 is guided by thread guides 7 and 8 substantially parallel to the grooved disk axis 3 and the disk axis 5. In this case, the thread 6 travels through the gap 11, and the grooved disk 1 and the disk 4. Is clamped in this gap 1 between. The yarn is twisted at this clamp point. As the yarn travels across the curvature of the disk 4 and the two sides of the grooved disk 1, it is additionally twisted.

  The bearing 9 and the crimping means 10 of the disc 4 enable the precise positioning of the disc axis 5 with respect to the grooved disc axis 3, whereby the desired gap 11 is adjusted.

  FIG. 3 shows another embodiment of a false twisting device according to the present invention. In this embodiment, a better twisting action can be obtained by using a grooved disk 1 having two grooves 2 and two disks 4 arranged one after the other in the axial direction. This solution is similar to the form in which two separate grooved disks 1 are arranged one after the other in the axial direction. In this arrangement, it is advantageous to provide only one gap 11. This is because it is sufficient to clamp the thread at a single point. Furthermore, in this case, it is not possible to provide a thread guide between both discs 4 that guarantees that the thread 6 is guided through the gap 11 in both grooves 2.

  An alternative to the embodiment shown in FIG. 3 is shown in FIG. In the embodiment of FIG. 4, the two disks shown in FIG. 3 are combined into one disk 4, and both sides of this disk 4 cooperate with both grooves 2 of the grooved disk 1.

  FIG. 5 shows an alternative embodiment of the present invention. A plurality of disk pairs 4, 4 ′ are arranged around the center disk 1. In this case, the disks 4, 1, 4 ′ are arranged one after the other in the traveling direction of the yarn 6 extending perpendicular to the drawing plane, And arranged so as to overlap each other, and in this case the thread 6 is guided in a spiral manner between the disks 4, 1, 4 '. The drive means 12 drives the disks 4, 1, 4 'to rotate in the same rotational direction.

  Thus, each disk pair 4, 4 ′ forms a textured means for each traveling thread 6 in relation to a common center disk 1.

  The drive means 12 consists of a drive wheel 12.1 below and directly coupled to the center disk 1, which may be a gear or a friction wheel, for example. This drive vehicle drives the disk pair 4, 4 'via one intermediate wheel 12.2. For this purpose, the discs 4, 4 'have a driven vehicle 12.3, which are likewise directly coupled to the discs 4, 4'.

  FIG. 5 shows only one center disk and one disk 4, 4 'for each yarn path. According to the present invention, a configuration is also possible in which a plurality of disks are arranged one after the other in the form of stacked disks (Scheibenstapel), that is, disks stacked to be aligned in the axial direction at intervals. In this way, the yarn 6 is driven by more than three disk surfaces for twisting.

  FIG. 6 shows a modified embodiment of the embodiment shown in FIG. 5. In this modified embodiment, the disk pairs 4, 4 'are arranged around the center disk 1 without a gap. A special advantage of this embodiment is that the twist direction of the yarn 6 can be easily changed. In this case, the direction of the drive means 12 is reversed, and the yarn to be twisted is assigned to the yarn running path 6 'between the two adjacent disk pairs 4, 4'.

  FIG. 7 shows a variant embodiment of the device shown in FIG. 5, in which the drive is effected by a circulating belt 13 instead of a toothed disc or a friction disc. For this purpose, the driven vehicle 12.3 and the driving vehicle 12.1 are formed as belt wheels. The turning roller 14 guarantees the winding around the driving vehicle and the driven vehicle necessary for transmitting the force.

  This device is shown in side view in FIG. Similar to the configuration shown in FIG. 5, in this arrangement format, the disk pairs 4 and 4 'arranged in the axial direction are spaced apart from each other, and are similarly stacked. Arranged around the center disk 1 arranged as a disk, each pair of disks 4, 4 ′ cooperates with the center disk 1. In the following, single disks and stacked disks are not distinguished in terms of words. Therefore, when a disk is described, the present invention includes a stacked disk. For the sake of clarity, only two disk pairs 4, 4 'are shown in FIG. A large center disk 1 with an axis 3 and a drive wheel 12.1 is arranged in the center. The drive wheel 12.1 drives a plurality of disk pairs 4, 4 'via one intermediate wheel. Based on the overlap of the disks 1, 4 and 4 'shown in FIG. 5, the yarn travels through the device in the form of a screw in the form shown.

  1 center disk, 2 groove, 3 center disk axis, 4,4 'disk, 5 disk axis, 6,6' thread, thread running path, 7 first thread guide, 8 second thread guide, 9 bearing, 10 crimping Means, 11 clearance, 12 driving means, 12.1 driving vehicle, 12.2 intermediate vehicle, 12.3 driven vehicle, 13 belt, 14 turning roller

Claims (16)

A false twisting device, which is provided with a disk-shaped twisting member (1, 4) which is rotatably supported and cooperates with each other, and a twisting portion is provided between the twisting members (1, 4). In the type in which the thread (6) to be threaded is threaded so that the thread (6) contacts both twisted members,
As a twisting member, the center disk (1) arranged in the center cooperates with a plurality of disks (4) arranged in a circle around the center disk (1), and a plurality of yarns (6) are obtained. A false twisting device characterized in that it is twisted and the diameter of the center disk (1) is at least 1.5 times the diameter of the surrounding disk (4). The center disc axis (3) of the center disc (1) and the disc axis (5) of the surrounding disc (4) are arranged substantially in parallel,
The yarn (6) to be twisted is guided substantially in the axial direction,
The distance between the axes (3, 5) is selected so that the surrounding disk (4) and the center disk (1) overlap each other in the yarn running direction as seen in the projection view,
A thread guide (7, 8) is provided, and the thread guide (7, 8) is arranged between the center disk (1) and the surrounding disk (4) in the overlap region of the thread (6). The false twisting device according to claim 1, wherein the false twisting device is guided through the wire.   The twisted member (1, 4) is formed with a groove (2) on the outer peripheral portion, and the outer peripheral portion of the disk that cooperates with the twisted member enters the groove. False twisting device.   The false twisting device according to claim 3, wherein the depth of the groove (2) is smaller or slightly larger than the width of the groove (2).   The false twisting device according to claim 3 or 4, wherein the groove (2) is provided in the center disk (1).   The false twisting device according to any one of claims 1 to 3, wherein the groove (2) and the outer peripheral portion of the disk cooperating with the groove have a rounded chamfered cross section.   One crimping means (10) is provided for each of the disks (4) located around the disk (4) and the center disk (1). The disk (4) and the center disk (1) The false twisting device according to any one of claims 3 to 6, wherein the false twisting devices are crimped to each other so that a narrow gap (11) is left between them.   The false twisting device according to claim 7, wherein the gap (11) is smaller than or equal to the yarn diameter.   The cross section of the groove (2) and the outer periphery of the disk cooperating with the groove are aligned so that a gap (11) is formed at the bottom of the groove. Item 1. A false twisting device according to item 1.   The false twisting device according to any one of claims 3 to 9, wherein the false twisting device has a plurality of center disks (1) arranged in the yarn traveling direction.   11. A disk with grooves has a plurality of grooves (2) and cooperates with a plurality of disks arranged one after the other in the axial direction for each yarn path. The false twisting device according to any one of claims.   10. The false twisting device according to claim 9, wherein the center disk (1) and the disk (4) located in the periphery are provided with grooves. The plurality of yarn guides (7, 8), the center disc (1) and the surrounding discs (4, 4 ') are center discs in which the respective yarns (6) are arranged on the center disc axis (3). (1) and at least two surrounding disks (4, 4 ') arranged on the disk axes (5, 5') arranged in parallel and separately from each other, and the yarn running direction The center disk (1) and the surrounding disks (4, 4 ') are arranged so that they overlap each other and are arranged one after the other,
Drive means (12) for driving the peripheral disks (4, 4 ') is provided, and the drive means (12) is composed of the center disk (1) and the peripheral disks (4, 4). The false twisting device according to claim 1, wherein the false twisting device is configured to be rotated in the same direction and at the same peripheral speed at the outer peripheral portion.   The driving means (12) includes a driving vehicle (12.1) coupled to the center disk (1), and a driven vehicle (12.3) provided on each of the disks (4, 4 ') located in the periphery. The drive vehicle (12.1) and one or two driven vehicles (12.3) are each connected to one another via an intermediate vehicle (12.2). The false twisting device described.   The false twisting device according to claim 14, wherein the driving vehicle (12.1) and the driven vehicle (12.3) are connected to each other via a belt transmission.   The plurality of center disks (1) and the peripheral disks (4, 4 ') are arranged on the same axis line in the axial direction, respectively. The false twisting device described.

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