JPH05247767A - Warp-paralleling device - Google Patents

Abstract

PURPOSE:To enable to parallel warps in such narrow intervals as impossible by reeds using comb teeth, to reduce damages given to the surfaces of the warps in their paralleling time as much as possible, and to change the mutual distances of the warps while the warps are inserted into blades. CONSTITUTION:The warp-paralleling device is provided with many blades 15 arranged in parallel in the lateral direction, the blades 19 having the (n) number of fine lines disposed at an approximately constant pitch in the longitudinal direction, and with tilting means 31, 37a, 37b for tilting all of the blades 15 in the lateral direction while the parallel state is kept, and with extending means 31, 36 for changing the mutual pitch P of the adjacent blades 15, and the tilting means and the extending blades change the tiling angle theta of the blades and the mutual pitch P of the blades in the state that at least approximately the relation of P-ndsin theta is kept, wherein (n) is the number of fine lines disposed in the blade and wherein (d) is the pitch of the fine lines 41 disposed in the blade 15.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a warp aligning device, that is, a device for aligning a large number of warp yarns at regular intervals. For example, in a warper as a weaving preparation machine, the warp yarns drawn out from a large number of creels are made uniform. The present invention relates to a device used when, for example, the beams are aligned in parallel at intervals and wound into a beam.

[0002]

2. Description of the Related Art As a aligning device, a comb-tooth-shaped device, which is generally called "ossa" in a broad sense, has been used. The warp for warping aligns the warp threads in parallel at regular intervals by inserting the threads one by one between the comb teeth erected at a pitch corresponding to the interval between the threads. One of
By supporting the book in association with the coil spring and extending the coil spring, the pitch between the comb teeth and thus the distance between the aligned yarns can be changed.

In such a comb-shaped device, it is necessary to make the pitch of the comb teeth the same as the spacing of the warp threads that can be aligned. Therefore, if the threads are to be aligned at a very narrow spacing, the corresponding lure is produced. Becomes difficult. Therefore, in such a case, as shown in FIG. 6, a large number of thread threads 41, ... There is known a device in which the distance between the yarns 41 on the plate 51 can be increased by vertically shifting the holes so that the holes can be punched.

[0004]

The method using comb teeth is as follows.
As described above, a problem arises when it is desired to reduce the spacing between the yarns to be aligned. That is, it is impossible to make the comb teeth infinitely thin in order to keep the mechanical strength of the comb teeth, and it is not possible to align the yarns at intervals narrower than the pitch limited by the thickness of the comb teeth. .. In addition, when trying to narrow the space between the threads, the thread passing between the comb teeth must be narrowed, and the thread is forcibly crushed by the two comb teeth and the back is As it passes, it damages the surface of the yarn and also increases the wear of the comb teeth.

Further, in order to prevent abrasion of the comb teeth and increase durability, it is desirable to increase the surface hardness of the comb teeth by using ceramics or the like, but in general, hardness and toughness (tenacity)
However, if the hardness is increased, the mechanical strength cannot be maintained unless the comb teeth are thickened.

On the other hand, in the method using the thread plate 51 as shown in FIG. 6, by fitting a ceramic sleeve or the like on each thread 41, almost all the problems of the method using the above-mentioned hook are eliminated. You can However, since the spacing of the yarns to be aligned (horizontal spacing of the yarns 41 ...) Is fixed for each yarn thread plate 51, when changing the spacing of the yarns to be aligned, the yarn thread plate 51 itself must be changed. Must be replaced. This means that when replacing the thread plate 51, it is necessary to insert warp threads into a large number of thread threads 41.

That is, the method using the yarn thread plate 51 is effective when it is not necessary to change the interval between the yarns to be aligned, but when the interval needs to be changed, the setup work at the time of the change is extremely difficult. It takes a long time to process, and it is almost impossible to cope with small-lot production of various products due to diversified demand.

According to the present invention, the warp yarns can be aligned with each other at a narrow interval which cannot be obtained with the comb teeth, and the damage to the surface of the warp yarns can be minimized. , And with the warp thread still inserted,
An object of the present invention is to obtain a warp aligning device capable of changing the interval between warp yarns to be aligned.

[0009]

The aligning device of the present invention has a large number of blades 15 arranged in parallel in the left-right direction.
Each blade 15 is provided with n number of thread stitches 41 provided at substantially constant intervals d in the longitudinal direction thereof. Further, the aligning device of the present invention has the tilting means 31, which tilts all the blades 15 in the left-right direction while maintaining the parallel state thereof.
37a and 37b, and widening and narrowing means 31 and 36 for changing the pitch P between the adjacent blades 15 are provided. The tilting means 31, 37a, 37b and the narrowing means 31, 36
Is characterized in that the inclination angle θ of the blade 15 with respect to the vertical line and the pitch P between the adjacent blades 15 are changed at least approximately while maintaining the relationship of P = ndsin θ. However, in the above formula, n is the number of the thread 41 provided on one blade, and d is the pitch of the thread 41 provided on the blade 15.

A plurality of (n
The distance d between the individual yarns 41, 41 should theoretically be equal, but each yarn 41 has a constant opening area and passes through each yarn. Since the introduction directions of the yarns are usually different, the warp yarns may be guided at the upper ends of the yarns or at positions deviated to the left and right ends of the yarns depending on the yarns. In some cases, it may be better to slightly shift the distance between the adjacent yarns in the longitudinal direction of the blade or in the direction perpendicular to the longitudinal direction so that the actual intervals between the yarns are equal in consideration of the thread passing position of each yarn. obtain.

Further, the pitch P of the blade 15 and the blade 1
The relationship between the inclination angle θ of 5 and the inclination angle θ can have an approximate width within the range of the tolerance of the intervals between the yarns to be aligned. For example, in practice it is preferable that the blade inclination angle θ is not too large, but if θ is small, sin θ is
It can be approximated by (radian) or cos θ.

[0012]

[Function] A plurality of thread lines 4 provided on one blade 15
The interval between the warp threads passing through 1 becomes a constant value represented by dsin θ, and the pitch P between the uppermost thread of a blade and the lowermost thread of an adjacent blade is L-
(N-1) dsin θ, and there is a relation of P = ndsin θ between the blade pitch P and the blade inclination angle θ. Therefore, when this is substituted into the above equation, the above equation becomes dsin θ. The interval between the warp threads passing through the uppermost thread of the blade and the lowermost thread of the blade adjacent thereto is also dsin θ.
Therefore, all the yarns are eventually aligned with the spacing dsin θ.

If the blade inclination angle θ is changed while maintaining the relationship between the blade pitch P and the blade inclination angle θ, the interval between adjacent warp yarns changes in proportion to sin θ.

The spacing between the yarns to be aligned can be made much smaller than the actual spacing d between the yarns 41 by selecting a small blade inclination angle θ, so that the yarns can be aligned at a narrow spacing. By providing a ceramic sleeve or the like on each thread 41, the thread 41 can be prevented from being worn and the damage to the thread can be reduced as much as possible.

In the above device, the spacing between the warp threads can be easily changed by interlocking the tilting means 31, 37a, 37b and the widening and narrowing means 31, 36 with the warp thread inserted through the thread 41.

[0016]

1 to 5 show a first embodiment of the present invention, and FIG. 2 is a front view of a warp aligning device. This device comprises a frame-shaped frame 12 supported horizontally by legs 11.
A large number of blades 15 are juxtaposed in parallel between the upper girder 13 and the lower girder 14 of the frame 12. A screw rod 16 extending in the longitudinal direction of the upper girder 13 and the lower girder 14,
17 is stored, and a toothed belt 18 is wound around the right ends of both screw rods. A handle 19 is attached to the lower screw rod 17, and when the handle 19 is rotated, both screw rods 16 and 17 rotate synchronously.

FIG. 3 schematically shows the right half of a pantograph mechanism for widening and narrowing and tilting the blade 15. The screw rods 16 and 17 are the bearings 4 provided in the central portion.
3 and bearings 44 provided at both ends are axially supported parallel to the upper girder 13 and the lower girder 14 so as not to move in the axial direction, and the threaded portion 21 is provided at both ends and a portion ¼ length from both ends. , 22 are provided. The screw lead of the screw part 21 at both ends is 1
It is twice as large as the lead of the screw portion 22 of the / 4 length portion, and a screw portion in the opposite direction is provided at the same position on the left side portion (not shown). The drive block 2 is provided on the screw parts 21 and 22.
3, 24 are screwed together, and an appropriate number of sliding blocks 25 are fitted and inserted in other portions.

As shown in FIG. 4, the drive blocks 23 and 24 and the sliding block 25 have an upper girder 13 and a lower girder 14, respectively.
The rail 27 is slidably supported on the side wall surface of the rail by a rail 27 fixed by bolts 26.

The pantograph 31 is vertically arranged in parallel with the screw rods 16 and 17, and a certain number of center pins 33 connecting the links 32 to each other at the center portion of the links are slidable blocks 25 or. Drive block 2
It is planted on 3 and 24. All the center pins 33 of the pantograph 31 are projected to the side opposite to the block (the right side in FIG. 4) and extend from the side walls of the upper girder 13 and the lower girder 14 with L
It is supported by a shaped rail 34 so as to be movable in the horizontal direction.

The center pin 33 is provided with a vertical slit 35 further on the tip side than the supporting portion of the L-shaped rail 34. A double coil spring 36 is stretched over the upper and lower girders 13 and 14 in parallel with the screw rods 16 and 17, and the slit 3
5, the wire of the double coil spring 36 is fitted and fixed at a constant number of turns, and the center pin 3 is loosened by the backlash of the pantograph 31.
3 Prevent the occurrence of disorder in the mutual distance, and use the center pin 33
It is designed to be widened while maintaining a constant distance from each other.

In this embodiment, the tilting mechanism for tilting the blade 15 is constructed by utilizing the tilting operation of the link 32 of the pantograph 31 for widening the interval between the blades 15. That is, as shown in FIG. 1, an upper lever 37a having a length s is integrally extended to the lower end of a link 32a (length b) extending obliquely downward to the right of the upper pantograph, and is parallel to the link 32a of the lower pantograph. A lower lever 37b having a length s equal to that of the upper lever 37a is integrally extended to the upper end of the link 32b (length b) in any direction, and both ends of the blade 15 are pivotally attached to the upper and lower levers 37a and 37b. ..

That is, at both ends of the blade 15 having the length L, the upper and lower links 3 with the center pin 33 on the same vertical line are provided.
2a and 32b are connected to levers 37a and 37b, and an upper connecting portion is provided so as to be relatively movable via a long hole 38 provided in the blade 15. The braid 15 has thread lines 41 in which a ceramic sleeve has been inserted and spaced at intervals d.
It is provided individually. 42 is a warp thread inserted in the thread.

FIG. 5 is a side view of the bearing 43 at the central portion which pivotally supports the upper rod girder 16. The center pin 33 of the pantograph 31, which is located at the center of the center pin 33, is planted in the bearing 43, so that even if the screw rod 16 rotates, the center pin 33 can be rotated.
a does not move. Further, the wire of the double coil spring 36 also has a slit 3 at the tip of the center pin 33a at the center thereof.
It is inserted in 5. The same applies to the lower digit pantograph. That is, the upper and lower pantographs 31 and the double coil springs 36 expand and contract symmetrically with respect to the center pin 33a at the center by rotating the handle 19.

Based on FIG. 1, the upper and lower pantographs 31,
The relationship between the tilt angle θ of the blade 15 whose both ends are supported by the links 32a and 32b of 31 and the pitch P will be described. The upper and lower screw rods 16 and 17 are the screw portion 2 of the same lead.
The upper and lower links 32a supporting one blade 15 are provided because they are provided with
The center pins 33, 33 of 32b are on the same vertical line. Therefore, if the inclination angle of the links 32a and 32b from the vertical line is φ, and the inclination angle of the blade 15 from the vertical line is θ,
(B + 2s) sin φ = L sin θ and P = b sin φ. Therefore, P (b + 2s) / bL = sin θ.

On the other hand, P = ndsin θ, where n is one blade 1 under the condition that the yarn intervals should be equal.
It is the number of the yarns 41 provided in 5 (7 in the illustrated embodiment). Therefore, if sin θ is deleted from both equations, P is also deleted at the same time, and if the relationship between s and L is selected so as to satisfy (b + 2s) / bL = 1 / nd, the condition of P = ndsin θ is always satisfied. In this state, the inclination angle θ of the blade 15 and the pitch P are changed, and the warp yarns 42 are dsin.
They will be aligned at an interval of θ. However, in the structure of the illustrated embodiment, the dimension L changes by the length of the long hole 38, which causes an error. However, if the blade inclination angle θ is small, this error does not cause a problem.

Further, in the blade wide / narrow mechanism of the above embodiment, the pantograph 31 and the coil spring 36 are used together. This is to improve the operation accuracy of the wide / narrow mechanism, but if the spring force of the coil spring 36 is made sufficiently large with respect to the tension of the thread 42, the coil spring 36 alone may be used.

The tilting means uses the levers 37a and 37b of the links 32a and 32b of the pantograph, and the relationship of δ = Lsin θ is maintained for the upper or lower pantograph 31, the coil spring 36, and the entire screw rod 16. It is also possible to adopt a structure in which the entire structure is moved. This is, for example, the speed reducer and the upper girder 13
4 and a feed screw that moves laterally.

Further, in the above embodiment, the blade 15
L = nd between the interval d of the thread 41 provided on the blade and the entire length L of the blade, that is, the thread at the lowermost end and the thread at the uppermost end of the blade and the coil spring 36 or the pantograph link 32.
It is also possible to configure a tilting mechanism by setting the distance from the pivot point of the blade 15 to d / 2 and shifting the upper and lower pivot points of each blade 15 by one pitch. That is, in this case, it is not necessary to provide the levers 37a and 37b of the above-described embodiment, and the pivot point distance L of the blade 15 is set so that the relationship of P = ndsin θ is satisfied as it is, that is, nd = L. To do.

[0029]

As described above, the aligning device of the present invention is
Blades having a plurality of yarns at regular intervals in the longitudinal direction are arranged in parallel in the left-right direction, and the blades are widened to have a certain relationship between their inclination angle and pitch. It is possible to align warp yarns at an impossible narrow interval. Further, since the relative positions of the yarns are distant from each other, a protective material such as ceramics can be added to the yarns, and damage to the surface of the warp yarns can be minimized when the yarns are aligned. Also, by tilting the blade while separating the blade while the warp threads are being inserted, it is possible to easily change the intervals between the warp threads to be aligned, and it is possible to quickly cope with small-lot production of a wide variety of products.

[Brief description of drawings]

FIG. 1 is a front view of a main part of an embodiment of the present invention.

[Figure 2] Overall front view

FIG. 3 is a view showing a connecting portion between a screw rod and a pantograph.

4 is a sectional view of part A in FIG.

FIG. 5 is a side view showing the bearing at the center of the upper girder.

FIG. 6 is a front view of a conventional device.

[Explanation of symbols]

 15 Blade 31 Pantograph 36 Double coil spring 37a Upper lever 37b Lower lever 41 Thread

Claims (1)

[Claims] 1. A large number of blades (15) arranged in parallel in the left-right direction, each blade (15) having n thread lines (41) provided at a substantially constant pitch in its longitudinal direction, Tilt means (31), (37a), (37b) for tilting all the blades (15) in the left-right direction while maintaining the parallel state, and a wide and narrow means (for changing the pitch P between the adjacent blades (15) ( 31), (36)
The tilting means and the widening and narrowing means change the inclination angle θ of the blade with respect to the vertical line and the pitch P between adjacent blades while maintaining the relationship of P = ndsin θ at least approximately. A unique aligning device. However, in the above formula, n is the number of the thread (41) provided on one blade, and d is the pitch of the thread (41) provided on the blade (15).