JPS63165549A - Apparatus for mechanically traversing warp yarn group by fiber machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION A device for mechanically shearing a group of warp threads running from a warping beam or similar in the field of industrial application or in an assemble beamin 7 device, which It is equipped with a hook IJ-1' (20) movable at right angles to the warping beam and a slot (2) opposite to the warping beam, and the wreath rod crosses the side edge of the warp group (1) with both 1111. Relating to a type in which one or more of them are supported so as to be able to be lifted and returned from the running position (26) to the traversing position (27) by means of a mechanical adjustment device that engages with the longitudinal end of the wreath slot r that projects out. .

PRIOR ART A device of this type is disclosed in West German Utility Model Registration No. 8013381. In this known twilling device, hook reeds commonly used in the textile industry are used, which are supported parallel to the plane of the warp threads and at right angles to the running direction of the warp threads. For threading, a plurality of leasing rods are mounted in a mechanical adjustment device, in particular by means of pneumatic adjustment elements, so that they can be raised and lowered individually. In short, a special regulating device is located opposite each leasing rod, and the lifting means must be synchronized separately at each end of the leasing rod.

Problem to be Solved by the Invention The object of the invention is to provide only one adjusting drive, which can lift the individual wreath rods one after the other, at each side edge of the warp thread group. Another object of the present invention is to provide an automatic webbing device that operates using hook leads commonly used in the textile industry. In this case, it is particularly desirable to synchronize the adjusting drives located opposite the opposite edges of the warp thread group in the simplest possible way.

Means to solve the problem The gist of the non-invention that solved the above problem is shown in each lease rod (2
) are respectively supported by the lever pair (3) at intervals from the lever rotation center (4), and the troughs and
Both levers (3) of the pair of ζ are each connected to a swing drive device (
5), and each row of the turning drive device (5) provided at both side edges of the warp group is loaded with a pair of ζ and ζ (3) one after the other. The one adjusting drive (7) of the two is arranged oppositely.

According to the invention, there is one at each side edge of the warp group.
Only one adjustment drive is provided, which in turn passes close to the pair of levers, the second of which is in mesh with the swivel drive, causing the S- to cooperate with the typical movement of the hook lead. Lift up. In short, at each side line of the warp thread group, only one adjusting drive is provided, which, in particular, passes through the swiveling drive of the lever belonging to each leasing rod, depending on a special command from leasing rod to leasing rod. And by this,
A pair of levers lifts the associated slot following a lateral reciprocating movement of the hook lead (or prior to such movement of the hook lead).

In one embodiment of the invention, drive means are provided on both side edges of the warp thread group for an adjusting drive which in turn passes close to the pair of levers and engages the swivel drive. There is. If this drive means is designed as a chain transmission, the adjusting drive can most simply consist of a drive roller fixed on the drive means, which passes in the vicinity of each pair of levers. It engages a pivoting drive formed as a simple two-pronged fork. If the set of drive rollers is fixed to the drive means, a smoothly operating adjustment drive results. In that case, the drive rows and rows can each be engaged in a swivel drive, which is optionally advantageously designed as a chain wheel segment, when passing near the lever pair.

The drive means can optionally also be designed as a rack gear, in which case the adjusting drive can consist of a rack segment connected to the rack gear.

As this rack segment passes near each pair Q to be operated, it is engaged by a swivel drive, which may be formed as a gear segment.

In any case, it is very simple to synchronize the movement of the circumferential drive means by means of a fixed connection.

For example, it is sufficient to provide one shaft which simultaneously drives or couples both drive means, in particular the chain transmission, in order to ensure perfect synchronization of the adjusting drives at both side edges of the warp thread group.

If the gear segments or chain wheel segments that are opposed to the trough edges of the warp thread groups are each located in a common plane and have mutually parallel axes, then in the device according to the invention it is actually possible to lift or lower them. It is only necessary to carry out a rotational or pivoting movement about the axis extending parallel to the longitudinal direction of the wreath rod.

According to the adjusting drive according to the invention, when the lever is swiveled by the swivel drive or the adjusting drive beyond the vertical lever position toward the stop, a special Securing is not necessary (simply lift the handle). The stop can be combined with a limit switch, the signal of which is used to initiate the next lateral movement of the hook lead. .

Each leno It is advantageous to place a limit switch not only in the pair of traversing positions, but also in its running position (the lowered position of the leasing rod). Advantageously, the entire supported adjusting device is arranged approximately in the center of the adjusting drive, extends parallel to the wreath rod, and is supported on the pivot axis.By pivoting about this axis, the warp threads and the wreath rod are It is possible to reduce the friction with the warping beam to a minimum, and to adapt the spread of the warp thread groups coming from each warping beam to the respective requirements.

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 and 2 schematically show an adjusting device located opposite the side edges of a group of warp threads 1, which adjuster comprises a number of, e.g.
It is useful for raising and lowering the book lease rod 2 in order.

In the adjusting device shown in FIGS. 1 and 2, a leno-3 is provided at the longitudinal end of each wreath rod 2. As shown in FIG. This longitudinal end of each wreath rod 2 is supported on a lever convex at a distance from the center of rotation of the lever z-3, and is specifically fixed. Each lever 3 is equipped with a swivel drive 5 which is pulled past the lever 30 in the feeding direction indicated by the arrow 6 by an adjusting drive 7.
operated through. When the adjusting drive 7 slides past the lever 30 and engages the swiveling drive 5 in the feed direction indicated by the arrow 6, the lever 3 pivots upwards in the direction of the arrow 8, in particular configured as a limit switch. The vehicle moves away from the lower stop horn 89 and turns toward the upper stop horn 810. As can be seen from the enlarged view in Fig. 2, the left sheave 3 is in direct contact with the upper stopper 10, and therefore the wreath rod 2 belonging thereto and the warp yarn group l that rubs against this wreath rod are It has been lifted, and on the other side, the right side Leno ζ-3 is still below the Stone 9
is in contact with.

The adjustment and drive device is indicated by the symbol 7 in Figure 2.
The gear segment (most simply It meshes with a swivel drive 5 which is designed as a two-pronged fork (also possible). (Individual I-ruts work together for a fork). In principle, however, the drive means can also consist of a rack transmission, in which case the rack transmission comprises rack segments driven thereby and each meshing with a gear segment. The point is that one and the same adjustment drive passes successively close to all levers 3 or lenoma pairs opposite the leasing rod 2, and
It is provided that the adjusting drive 7 is operated by one drive means. Since for all the adjusting drives only one drive means is provided at each side edge of each warp group, one drive means is provided at each side edge of the warp group to control the movement of the drive means. A simple and fixed connection is sufficient. For example, both drive means are synchronized by only one Q@19.

The adjusting drive 7 consists, for example, of a plate piece 14 whose number depends on the notch angle of the swivel drive 5 and a drive roller 15 attached thereto. The chino 13 is driven endlessly through two wheels 16 and 17ff. The prime mover 18 is attached to a ten-thousand chain wheel 17, and the other chain wheel 16 is pulled due to the tension of the chain. Che/
The shaft 19 of the wheel 17 is guided transversely through the machine, so that the prime mover is also able to control the adjusting device located opposite 1111 of the warp thread group 10 and drives both adjusting devices synchronously. be able to.

The chino 13 and drive roller 15 shown in FIGS. 1 and 2
Gashi? -3 or is driven or controlled so as to be stopped between each pivoting movement of the lever pair. During the standstill, the hook IJ-dore 20 shown in FIG. 1 performs a lateral movement and, in some cases, an upward and downward movement as shown by the arrow 21 at each moment of twilling.

The length of each lever 3 must have a ratio of 1 to the effective radius of the swivel drive 5 of each lever, in particular of the wheel segment, such that the angle is not excessive. According to experiments, this ratio i = I / r o is 5 and 10
It is effective to adjust between Maximum wreath rod pitch T = 5 (1 mm (see Figure 1), effective swing drive radius r = 30, the length of the shaft is 1
It is between 50 seagulls and 300 dragons. When the length L has this value and the number of lease rods is large (for example, 16 to 20), the descending movement 21 of the hook lead 20 is performed in synchronization with the movement of the checker 713 in order to remove the twill of the warp group. is effective.

In order to avoid the individual warp thread groups from being caught in the 91st part of the hook 22 of the hook reed 20 during operation of the twill removal device shown in FIG. Angle α is required.

This minimum deflection angle α is defined for FIG.

For purposes of drawing and calculations, it is assumed that the lease rod length L=300 mm, the lease rod pitch T=80 mm, and the number of lease rods A-16.

■ In Figure 3, the lease rod 2 has the code 2...XLXV'I
It is indicated by. While the pivot axis or lever is rotating, all eight cows are on one straight line 23. The mutual spacing of the lease rods 2 is indicated by the lease rod pitch T. When the lease rod 21, for example, the lease rod is rotated from the running position (lower position in Figure 3) to the traversing position (upper position in Figure 3),
The corresponding warp thread group reaches from the lower position 24 to the upper position 25. deviation angle α between both positions or both planes
is stretched.

Assuming that the straight line distance between the lower position of the last wreath rod indicated by the symbol ffI and the hook reed 20 is approximately 200 mm, the total distance between the 6th rod of the first wreath rod during lever rotation and the hook reed 20 is approximately 200 mm. is calculated using the following formula.

Lge5=20Q +TACO530°×Lcos 1
5° = 160CM wind From this the deflection angle α is calculated.

This deflection angle α=13.3° of the threads is sufficient to exclude the possibility that individual warp thread groups remain caught on the side of the hook 22 of the hook reed 2o.

The straight line distance between the last wreath rod m and the hook lead 20 was set to 200B during warp twilling, but this value was not maintained at the running position of the device; This spacing must be variably preset depending on the number of lease rods so that different spacings, for example large spacings, occur.

In the running position, the warp threads should not be in close contact with the leasing rod 2, or should be in contact as little as possible at any time. The wreath rod is therefore made as thin as possible. On the other hand, in the traversing position the beam-slot must be able to absorb most of the tension of the warp thread group to which it belongs. For this reason, the wreath rod is formed with an oval cross-section and is adjusted such that its long axis is oriented parallel to the thread direction in the running position and approximately at right angles to the thread direction in the weaving position.

This variation of the orientation of the long axis of the wreath rod, which has an elliptical cross-section in relation to the direction of the thread, is easily implemented in the device according to the invention. This is because, as shown in Fig. deviation from the position to a position perpendicular to the warp group. This is because, for example, in FIG. 1, when the single wreath rod 2 fixed to the shaft 3 moves in the direction of arrow 80, the wreath rod automatically rotates approximately 90 degrees.

Adaptation in the sense hitherto explained is such that the entire adjusting device bearing the leasing rod has a pivot axis 2 which extends parallel to the leasing rod and is arranged approximately in the center of the adjusting drive.
This can also be achieved by being supported on 8 (see Figure 1).
or improvement).

[Brief explanation of the drawing]

Fig. 1 is a schematic side view of one embodiment of the present invention, Fig. 2 is a partially enlarged view of the same embodiment, Fig. 3 is an explanatory diagram for defining the warp eccentric position, and Fig. 4 is the most effective. 1 is a schematic diagram showing a cross-sectional shape of a conventional wreath rod. DESCRIPTION OF SYMBOLS 1...Warp group, 2...Wreath rod, 3...Lever, 壬...shi/ζ one rotation center, 5...Swivel drive device, 6...Arrow, 7...Adjustment Drive device, 8...arrow, 9, 1°...stopper, 12...cheno guide, 1
3... Cheno, 14... Plate piece, 15... Drive roller, 16, 17... Cheno wheel, 18... Prime mover, 19... Shaft, 20... Hook lead, 21・Arrow, 22...Hook, 23...Straight line, 24.25・
...Position, 26...Traveling position, 27...Twilling position, 28...Turning axis Fig. 3 2 - Lease rod Fig. 4

Claims (1)

[Scope of Claims] 1. A device for mechanically weaving a group of warp yarns running from a warping beam or similar in a textile machine, which includes a hook lead ( 20) and a wreath rod (2) opposed to the warping beam, the wreath rods engaging longitudinal ends of the wreath rods that protrude beyond the side edges of the warp group (1) on both sides. The longitudinal ends of each leasing rod (2) are of the type in which the longitudinal end of each leasing rod (2) is supported in such a way that it can be lifted and returned individually from the running position (26) to the traversing position (27) in each case by means of a mechanical adjustment device. The lever pairs (3) are supported at a distance from the lever rotation center (4), both levers (3) of each lever pair each having a pivot drive (5), and the warp thread group Opposite each row of swivel drives (5) provided at both side edges is a common adjusting drive (7) which loads the lever pairs (3) one after the other. A device for mechanically weaving a group of warp threads in a textile machine, characterized by: 2. Device according to claim 1, characterized in that the pivoting drive (5) of each lever (3) is designed as a step switching mechanism engaging the lever rotation center (4). 3. The step switching mechanism consists of a gear segment, a chain wheel segment, or a fork mechanism, and the warp group (1)
2. The device according to claim 2, wherein the gear segments, chain wheel segments or fork mechanisms located opposite the side edges of the device are located in a common plane and have mutually parallel axes (4). . 4. At each side edge of the warp group, there is an adjustment drive (
7). Device according to claim 1, characterized in that drive means (13) for 7) are provided. 5. Device according to claim 4, characterized in that the drive means (13) at both side edges of the warp thread groups are fixedly connected to one another, in particular via one shaft (19). 6. The drive means (13) are designed as a chain transmission, to which a set of drive rollers (7) forming an adjustment drive is fixed, which engages the fork mechanism or the chain wheel segment. An apparatus according to any one of claims 2 to 5. 7. The drive means are designed as a rack gear;
Claims 1 to 5, characterized in that the rack transmission comprises rack segments forming adjustment drives, which are driven by the rack segments and in each case mesh with a gear segment. The device described. 8. Device according to any one of claims 1 to 7, characterized in that the lever pair (3) is positioned on the stop (10) in the traversing position. 9. Device according to claim 8, wherein the stop (10) is designed as a limit switch or the like. 10. Stop (9) with lever pair (3) in travel position (26), in particular designed as a limit switch or the like;
10. A device according to any one of claims 1 to 9, wherein the device is positioned abutting against a. 11, the lever pair (3) produced by the adjustment drive (7)
) is synchronized with a reed drive device serving for creating a movement of the hook reed (20) in the horizontal and, in particular, vertical direction.
The apparatus described in any one of the preceding paragraphs. 12. The entire adjustment device supporting the lease rod (2) is
12. The adjustment drive according to claim 1, wherein the adjustment drive is mounted on a pivot axis (28) extending parallel to the leasing rod and located approximately in the center of the adjusting drive. Device.