JPS5959958A - Method and apparatus for producing bias nonwoven fabric - 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 The present invention relates to a method and apparatus for producing a diagonally crossed nonwoven fabric made of diagonally crossed phantom yarns.

In addition to being used alone, the nonwoven fabric with diagonal threads is also used for paper, membranes, and
It is also a reinforcement I for M-fiber webs, etc., and many manufacturing methods have been proposed, but as one of the most representative methods, it is recommended to While the two left and right circulating chains with thread hooks are running in the warp direction along parallel direct expansion tracks, a large number of thread guides are traversed in parallel in the warp direction at the same pitch as the above thread hooks. Generally, a method is used in which the tool is moved left and right in the 4M direction (, M), and the first few threads passing through each thread guide are intertwined by being hung on the left and right thread hooks moving in the warp direction.

In this method, in order to hook six threads onto thread hooks at alternating left and right traverse ends, individual thread guides parallel to each other in the warp direction must pass between parallel thread hooks moving in the warp direction and fold. It is necessary to return the thread guide and thread hook in parallel with the big-t
'', must always match exactly, and even though it is not 1', as the running time of the 32-y chain with all the thread hooks attached increases, it stretches on the left and right sides, causing the parallel pitch of the thread hooks to deviate. 61 difference 1 for the parallel pit t of the thread guide. This results in a problem in which a large number of parallel guides cannot pass between the parallel thread hooks.

Therefore, with this method, as time passes, it becomes difficult to consistently produce oblique bodies with a fine thread arrangement, and the fast nails become too small, and the mesh ff7.1 also becomes difficult to maintain (1'). The present invention was made in order to eliminate the drawbacks of this divine method, which is time consuming, expensive, and occupies a large area. Thread hook fii: The same number of thread hooks are arranged in a row on two circles of the same diameter on the left and right that rotate on the axis, dividing the circumference equally at the same pitch. Also, in the nucleus J: a and concentric iT no arc -
t-.

A large number of thread guides are arranged in a row for each center angle (, all arc traverse tools, thread hook > 51 tlt + forward in the h direction qq fftJ+, busy, a large number of threads pass through the thread guide. are lined up in an arc shape, traverse past all the thread hooks on the left and right, and hook the 6 threads alternately on the left and right thread hooks as if folded back. While the traverse tool makes one reciprocation,
The thread hooking section was rotated by an angle that is an integral multiple of the center angle corresponding to the pitch of the thread guide to form an oblique body of thread between the left and right thread hooking sections, and the yarn was supplied between the left and right thread hooking sections. The light layer is used to sequentially remove the threads L and C and take them out.

11 - Rotate the left and right thread hooks in the same way - Tsukuda 11/l1m, l
r! ? Place it on the circumference of the two left and right disks with the same diameter,
By supplying a light layer to the inner side of the thread hooking part on the circumferential surface of each disc, and removing the thread from the thread hooking tool one by one using the diagonal cross section t4 of the thread formed between the left and right thread hooking parts, the left and right ends are removed. As a photographic material, a nonwoven fabric with only diagonal threads in the middle can be obtained.

In addition, left and right thread hooking parts are provided at the left and right ends of the same rotating cylinder,
If a warp material is supplied on the periphery of the cylinder between them, a nonwoven fabric of yarn having warp material on the entire surface other than the above-mentioned nonwoven fabric is obtained.

A large number of threads to be interlaced may be passed through the thread guide of the traverse tool at an arbitrary number of 5 threads, but it is also possible to pass them through the thread guides sequentially or at a fixed number (2) in parallel in an arc shape. If #, t,) corresponds to the pitch between adjacent threads during one reciprocation of the rubber tool (.

By rotating the threading section by an angle equal to the center angle multiplied by the number of threads (-2), the pitch between the left and right threading sections will not be separated or overlapped. A diagonal body of threads arranged at a uniform pitch is formed.

Yarn oblique body U5 formed between the left and right yarn phase parts, -1 word s,
: For disks or cylinders.'' 2. Take out the material sequentially using the supplied warp material, but this It, 7.
IIH feeding (2) If the threads are 1 degree out from the upper and lower sides of the diagonal body with A7, the arrangement of the threads will be less likely to be disturbed.

Take the 11th stitch from the thread 1↑), and fix the west 1' row of the thread by gluing the intersection point with paulownia wood, or by adhering it to the warp material, or by some other method. .

If the thread that makes the extra 1y or both the light phase and IU supplied between the thread hooking parts are made to have sufficient adhesion capacity in advance, it can be used as a diagonal body in which the yarn arrangement is fixed by gluing before taking it out from the thread hooking part. It is also possible to take it out.

In the present invention, yarn means organic or inorganic fiber yarn, strand, roving, T-magnetic tape, tin-lit yarn, etc. A web of inorganic fibers or the like may be used.

Furthermore, as a method similar to the claimed invention, the Patent Publication No. 5
In this method, 1. 11. How to make the base cloth used for the keigabusa of the single board and 11. The thread is pulled from side to side through the projections protruding from the circumferential surface of both ends of the roller at one-foot intervals.
10, it is stated that this is the weft and is bonded to multiple warp threads to form a net, but as is clear from the explanation and drawings, it is clear that the thread t in the weft direction is simply a single thread in a zigzag pattern. The light itself does not intersect; it forms a network only by intersecting with a large number of warp threads, and in the method of this application, the circumferences of the left and right circles with the same axis and the same diameter. It is similar to t to provide a thread hooking part in the second part, but the difference is that a large number of threads are lined up 71 on an arc concentric with the circumference and traversed. Left and right9. When hooked onto the thread hook of IJi-, each thread is not only arranged in a zigzag pattern, but also crosses each other diagonally in opposite directions, forming a diamond-shaped mesh by the traversing light itself fOJ. The invention of the present application is clearly different from No. 11 JPY Publication No. 56-49721 in that it has been made possible, and is novel. , rod-shaped holes with a constant height from the outer circumference are drilled in a row on the outer periphery of two disks 2.2' with the same diameter attached to the left and right sides of the rotating shaft 1, dividing the circumference equally at the same pitch. Insert the thread hook 3.3' to form the left and right thread hooks, rotate @J and face the disc 2.2', and create a concentric arc with a radius larger than the distance from the center of the rotating shaft to the tip of the thread hook. Both ends of the arc-shaped traverse tool 4, which is a lightweight structure with a surface, are connected to two cylinders (1'#cam5.5'
By the rotation of the cam 5.5', the left and right threads +t'
1i311 and then traverse left and right, and the arc surface has a large number of holes 6 in one row in the circumferential direction at each longitudinal center angle θ corresponding to the pitch of the thread hook 3.3' as shown in Fig. 3. Oh (
・]Insert the thread kite 7 made of a thin tube through which the thread passes into the hole, and then insert the thread kite 7 into the hole. Distance between I+ tip and outer circumference of disk 2.2'? , the height of the thread hook 3.3' is slightly larger than the height of the thread hanger 3', or it should be aligned at a certain distance below. The thread guide 7 of the traverse tool 4 is passed through the thread guide 7 of the traverse tool 4 or in parallel in a circular arc shape, and the pitch between the parallel threads is adjusted during one reciprocation of the traverse tool 4. The rotation ratio of the cylindrical grooved cam 5.5' and the shaft 10 is set by using a gear, chino, timing belt, etc. so that the thread hook shaft 1 rotates by an angle equal to the corresponding central angle multiplied by the number of parallel threads. The number of threads 9 is determined by a tooth ratio of 11, and is accurately maintained and driven.In this way, a large number of threads 9 traverse left and right in a circular arc between the rotating left and right thread hooks, and at the traverse end. Alternate left and right threads] After crossing the tool, each prefecture is caught on the thread hooking tool and folded back, alternating diagonally in opposite directions, and the left and right thread hooking parts are partially 11F and there is no gap between them. Between them, there is a diagonal body 12f of threads with a uniform thread pitch (continuously formed).

Even if the distance between the thread guide 7, the thread outlet and the outer periphery of the disk 2.2' is greater than the height of the thread hook 3.3', the threads 91-,j are pulled out from the thread guide 7 at the traverse end. Since the thread i guide 7 passes over the thread hooking tool 3.3' as it moves laterally while being pulled tangentially from the outlet to the outer periphery of the disk 2.2', the thread automatically moves between the rotating thread hooks 3.3' and 3.3'. This point is fundamentally different from the conventional method in which the thread hook moves on a plane as described above.

Even if the thread guide 7 passes through between the front and rear thread hooks as in the conventional method, the thread hook is fixed to the disk, so the pitch of the Itoi tool 1 remains unchanged regardless of the length of the 11 seconds of operation. Therefore, there is absolutely no problem as in the conventional method VC mentioned above, and the accuracy of the intersection between the thread guide and the thread hooking tool is superior to the advantage of permanent weft beating.

Can you thread the left and right threads like the upper h1? The diagonal body of the thread formed between t+1 is sequentially removed and taken out from the thread hook using the warp material supplied in advance on the inner outer periphery of the thread hook 3.3' row of the disk 2.2'. In the example shown in the drawing, 3 to 4 threads are made at the front of the traverse position with respect to the rotational direction of the hook 1, R<L 14.14', and in the same way, 3 to 4 wood warp threads 16.16' are supplied at the traverse position @ rearward comb 15'fr so as to almost overlap with this, and the oblique body 12 of the thread is supplied. The left and right end portions of the yarn are held from the front and back, and the yarn is taken out through the rollers 17 by the warp threads 14 and 14' below the y1 intersection, and sequentially from the left and right thread hangers 3 and 3'.

For the worn out parts, the left and right warp threads are made to run in the warp direction by one-sided push and 17, and then the threads are applied with appropriate threads (1111), dried,
It is sufficient to adhesively fix the y-point part and the ear part of the thread through a process such as crimping. is obtained.

In addition, in the process, other warp materials such as i, r, etc. are bonded to other warp materials, membranes, foamed sheets, fiber webs, etc. by adhesion or other methods.
By wearing one, you can get the effect of reinforcing them. Instead of the disks 2'2' of the left and right thread hooking parts shown in FIGS. 1 and 2, thread hooking tools 3, :3' are installed on the outer periphery of the left and right ends of one rotating drum 21, as shown in FIG. If the thread is crossed in advance, the drum surface between the left and right thread hooking parts is supplied with 41 yen 41, which corresponds to the full width of the diagonal body of the thread, and the thread to be diagonally crossed in advance, or the warp material, or both) 1 full adhesion capacity. The drum 21 may be heated internally or externally. In this case, it is possible to bond the diagonal body of the yarn and the warp material on the drum 2), and it is also possible to obtain the advantage of the first sheet reinforced with the diagonal body of the yarn on -δ(. .

Example 1゜In the apparatus shown in Figs. 1 and 2, two disks 2.2/2 m in diameter and 0.1 m in width are placed on the left and right sides of the rotation axis l. l
Separated by a distance Mll'1.1 m, a rod-shaped string hook P with a thickness of 1.5 mm is placed at the center of the outer circumference width, and the circumference of the 3.3' circle is divided into two equal parts J2 (1 ( l Kizu＼稙7 in one-71.
(The pitch was 523 mm, the angle was 03°), and the height from the outer periphery to the tip was approximately 3 mm.

The radius of the arc part of the arc-shaped traverse tool 4, which is concentric with the one facing the disk 2.2', is k1.005 m, and the arc length is 1.7 m.
and 17, in one row along the arc on the face of Mo, with a central angle of 0.30
Drill 300 holes of 2 m and 1 m in each hole, and set an inner diameter of 1 m in each hole.
The mwr capillary thread guard R door was fully implanted, and the distance f from the thread exit to the outer circumference of the disk 2.2' was aligned at 21 m. The cylindrical d9 cam 5.5"i makes one reciprocation over a distance of 1lll#1.22 m in 20 revolutions at 200 revolutions per minute, and the traverse tool 4 completes 1 per minute.
0 reciprocation, and 300 nylon threads of 500 denier pulled out from the creel were passed through each thread guide of the traverse tool one by one and traversed, rotating the axis l at 2.5 (b) per minute.
I drove around.

6 threads are threaded alternately between the left and right thread hooks at an angle of 33° in opposite directions, and the threads are threaded at an angle of 33° (15.7
formed at the rate of rnAnin. I 5 (10 denier nylon thread 4
A comb 13 is fed on the outer periphery of the disk inside the left and right thread hooks in parallel at a pitch of 4 mW, and then a comb 15 is fed in parallel with 3 similar nylon threads at a pitch of 4 mW. Then, the former yarn is fed half-pitch, and the left and right ends of the oblique body of yarn are sandwiched from the front and back on a disk, and the outer periphery of the disk is heated with infrared rays to melt the hot melt glue. Roll 1 is glued on the entire disk at the intersection with the diagonal yarn, and the diagonal body of the yarn is removed from the thread hanger by the warp, and then water-cooled from the inside.
7 was incubated, cooled and taken out. The product has a thread pitch of 4.4
mN, threads cross diagonally at a crossing angle of 66°, left and right ends 1.2 T
Width 1.2 with warp glued and fixed with nRVC2 tomo pitch
It was produced at a speed of 15.7.../min using a conventional nonwoven fabric of rn.

This non-woven fabric was suitable for reinforcing PVC corrugated sheets.Example 2 A thread hook similar to that in Example 1 was placed on the outer periphery of the left and right ends of a hollow rotating drum with a diameter of 2 m and a width of 1.21 m. Distance between hangers? 1.2 With the same arc-shaped traverse tool as in Example 1, 150 500 denier vinylon threads were fed into the thread guide of the traverse tool every other time for 1 minute. The drum was rotated at 2.5 revolutions per minute. As a warp material, a pre-glued paper with a width of 1.2 m is fed from the front of the traverse position onto the drum between the left and right thread hangers with the glued side fully outward, and the threads are diagonally intertwined on top of the drum. The paper was heated to adhere the Japanese pattern to the paper on a drum, and the paper was pressed with a non-adhesive rubber-lined roller 17 and then taken out. The product is a reinforced paper with a width of 1.2 m, in which threads diagonally crossed with a pitch of 8.8 and a cross angle of 66° are glued and fixed to the paper surface.
It was produced at a speed of 7 m/min.

” Invention 11 of the present application A large number of threads are threaded between the thread hooking portions provided on two rotating left and right circumferences in a row along a circular arc concentric with the circumference. This method is different from the conventional method in that the threads are lined up in an arc and traversed to form an oblique body of thread on the curved surface between the left and right thread hooking parts. The fact that the thread guides are on concentric circles means that the individual thread guides can hook the thread on the thread hooks simply by passing above them without having to pass through all the threads between the thread hooks at the traverse end. 1
Even if the yarn is passed through a river, the pitch of the thread hook and the thread guide remains unchanged, so the crossing accuracy is permanently maintained. Therefore, the diagonal nonwoven fabric with a small pitch between threads can maintain its full accuracy for a long time. The present invention is a novel method and device that have the advantages of being capable of continuous production, being compact, inexpensive, and easy to maintain.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view showing an example of the device of the present invention, Fig. 2 is a front view thereof, Fig. 3 is a drawing showing the relationship between the thread hooking part and the thread guide, and Fig. 4 is a diagram showing the thread on the cylinder. This is a drawing with a hanging section. Explanation of main symbols] -Rotating shaft 2.2'2 circular plate 3.3': Thread hanging tool 4: Arc-shaped traverse tool 5.5'2 cylindrical groove cam 6: Hole 7: Thread guide 8: Creel 9: Thread 10: (j. 11: Drive unit 12: Yarn diagonal body 13, 15: < L1
4.16: Warp 17, : Roller 21: Rotating drum Applicant: Polymer Processing Research Institute Co., Ltd. 1 Enhaku 2 Diagram Y 3 times

Claims (1)

[Scope of Claims] (1) On two left and right circles having the same diameter and rotating on the same axis, the circumference is equally divided into equal pitches (7 and 1
It has a thread hook section with the same number of thread hooks lined up in a row, and has a circular arc concentric with the circumference.Secondly, a large number of thread guides lined up in one row at each center angle corresponding to the pitch of the thread hooks. A circular arc-shaped traverse tool equipped with a thread hook is reciprocated in the axial direction of the thread hook, and a large number of threads are passed through the thread guide 'fC in an arc shape (parallel) and traversed from side to side beyond the thread hook. , hook each thread hook alternately on the left and right thread hook traps, as if turning them back, and while the traverse tool makes one round trip, the thread is pulled at an angle equal to the steering angle of the center angle corresponding to the bit of the thread guide. Rotate the part,
A thread diagonal characterized in that the thread is completely formed between the left and right thread hooking parts, and is removed from each thread hooking tool by a light phase supplied between the left and right thread hooking parts. Manufacturing method for cross-woven non-woven fabric. (2. In the method of claim (1), the left and right thread hanging parts are on disks of the same diameter attached to the left and right sides of the same rotating shaft, respectively. A method for producing an oblique nonwoven fabric of threads. (S) @Claim In the method of scope (1), the left and right thread hooking portions are at the left and right ends of a rotating cylinder, respectively. are passed through the thread guide of the traverse tool one after another or every fixed number of threads, arranged in an arc shape, and during one reciprocation of the traverse tool, the center angle corresponding to the pitch between the threads is multiplied by the number of threads. (5) In claim (1), the diagonal body of thread formed between the left and right thread hooks is rotated by the left and right thread hooks. A method for manufacturing a diagonal nonwoven fabric in which yarn is pinched from the upper and lower sides by a warp material supplied between sections and sequentially removed from a thread hanging tool. (6) In claim (1), A method for manufacturing a diagonal nonwoven fabric in which the thread passing through the thread, the dabbing supplied between the left and right thread hooking parts, or both have adhesive ability. The left and right circular thread hooks are provided with the same number of thread hooks on the left and right by equally dividing the circumference in one row in the circumferential direction, and the above-mentioned A large number of thread guides are arranged in one row at each center angle corresponding to the pitch of the thread hooking device, and an arc-shaped traverse tool is provided that reciprocates 1110 times from side to side in the axial direction of the thread hooking section beyond the left and right thread hooking sections. 1. The pitch of the thread guide corresponds to the pitch of the thread guide during one reciprocation of the core traverse tool. Apparatus F3 for producing a non-woven fabric with diagonal yarns characterized by: Manufacturing equipment. (9) In the device f6 of claim (6) with a back length of 1 tT, the left and right thread hooking portions are made of left and right threads on the periphery of two left and right disks of the same diameter that rotate about the same rotation axis manufacturing equipment.