JPS61152848A - Selvage fabric by rapier loom - 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] <Industrial Application Field> The present invention relates to a selvedge fabric made by a rapier loom and a device thereof.The rapier rod of the rapier loom is improved, and a selvedge assembly device is newly installed. It was developed with the aim of making it possible to weave selvedge fabrics using continuous wefts on a rapier loom in the same way as fabrics produced on looms, and to obtain fabrics with durable selvages at low cost.

<Prior Art> As is well known, looms are broadly classified into shuttle looms and shuttleless rapier looms.

When producing textiles using a shirttle loom, small wound weft threads are placed inside the shirttle and moved from side to side to feed the weft threads within the warp system.As a result, the edges of the fabric are continuous and folded back. It is durable and suitable for base fabrics for packaging bags for heavy items. However, because the weft bobbin is small, the weft yarn of the shirttle is consumed in a short time, and it takes time to replace it each time.The weaving speed is much slower than that of a shirttleless loom because the shirttle is run from side to side, resulting in less productivity. It is a bad thing. There are some automatic looms that automatically replenish the weft yarn for each shuttle, but they require a lot of equipment costs, have a complicated mechanism, are prone to breakdowns, and have the disadvantage that the types of weft yarns are limited. The sound and vibrations are also large.

On the other hand, unlike the shirttle loom, the shirttleless loom has a high weaving speed and uses a large weft cone directly, which saves the trouble of changing the weft, and is highly productive. Since the fabric is cut one by one each time it passes through the vertical system, the selvage portions are weak, and furthermore, unnecessary portions are removed in a striped manner from both selvage portions of the fabric, resulting in loss of raw material.

<Problems to be Solved by the Invention> The present invention aims to eliminate the drawbacks of the shirttle loom and shirttleless loom as described above, and to provide a new loom that combines the features of both. While adopting the basic weaving method of the rapier loom, which is a large shirt torqueless loom, it is woven using endless weft threads like the shirt torque loom.

In addition, a new selvedge device was used to create a fabric with strong selvedges.

Means for Solving the Problems> To this end, in the present invention, consideration has been given to both the fabric and the device, such as the selvedge fabric produced by a rapier loom and its device. The ears are weft (2)
An selvage tissue product having an selvage without a cut end of the weft, which is composed of a folded selvage (4) and a ring-shaped selvedge (6) in which an selvedge selvedge (5) is entangled with the folded weft. The apparatus for obtaining the selvage tissue is a rapier rod (10) that reciprocates through the warp thread opening with a stroke greater than the width of the fabric so as to braid the selvage without cutting the weft thread at the tip position of the rapier rod (10). A new selvedge device was added to the loom.

A more specific structure of the ear tissue is a ring-shaped ear part (6
) is a rapier attachment (10) to the first loop difference (A) of the selvedge thread (5).
The loop gap (B) of the weft yarn (2) sent in passes through the first loop gap (B), and then the second loop gap (C) of the selvedge thread (5) passes through the loop gap (B) of the weft yarn, and these loops pass through. This is a selvedge structure formed by sequentially tightening the differences (A), (B), and (C). As a specific example of a device for weaving it, a selvage device is a weft yarn (2
) A feeding needle (20) that feeds the selvedge thread (5) into the ring gap (B) at the tip, and a feed needle (20) that feeds the selvedge thread (5) into the loop thread (B) at the tip.
5), and the receiving claw (21) and the feeding needle (20) are inserted into the first loop gap (A) of the selvage braid formed by their cooperation. A rapier rod (10) that sequentially feeds the ring difference (B) at the tip of the weft yarn to
An example of this is that it was placed in a position that is correlated with the

Effect〉 When the same material is used, the selvage tissue with the above structure is as durable as or even stronger than the fabric made on a conventional shirttleless loom. This is a Shirttle-less rapier loom that can weave yarn as it is, and has the function of weaving selvage tissue at a higher speed than a Shirttle loom.

<Example> Hereinafter, an example of a selvage tissue material using a rapier loom and a device thereof according to the present invention will be described in detail with reference to the drawings.

Fig. 1 is an enlarged plan view showing the ear assembly part of the ear tissue of the present invention with the middle part omitted, Fig. 2 is a side view showing an example of the rapier tip and the ear assembly device, and Figs. FIG. 3 is an explanatory diagram showing the order of sets.

The selvage fabric in Figure 1 is a 171 plain weave where the ground (1) is a two-strand weft yarn (2).If it is a double weave, the ground (1) is a warp yarn (3).
The structure of the woven fabric is not particularly limited, as long as the upper and lower surfaces are alternated.The feature of this woven fabric is that although it is a rapier loom, the weft thread (2) is continuous without being cut at the selvedges. It has a zigzag pattern, with rings on both sides of the ear. The left side of Figure 1 is a simple folded selvage part (4) of the weft yarn, but the 2 right side is a ring-shaped selvedge part (6) in which the selvedge yarn (5) is newly entwined with the folded weft yarn. It constitutes.

An example of the structure of the loop-stitched selvage section (6) is shown on the right side of Figure 1, and the way it is assembled becomes clear if you follow the selvedge thread (5) from the bottom of the figure to the top. That is, the loop (B) of the weft yarn (2) sent by the rapier rod (10) is passed through the first loop (A) of the selvedge thread (5), and then the loop (B) of the weft thread ( Pass the second loop (C) of the selvedge thread (5) through B) again,
Tighten these ring gaps (A), (B), and (C) in order to finish.

The ring difference (A) and (C) of the selvedge thread are only separated for the sake of explanation; the ring difference (C) will move on to the ring difference (A) of the next selvage thread.

(A) and (C) are completely equivalent.

An example of a selvage assembly device for forming the selvedge selvage portion (6) is shown in FIG. 2. In addition to this example, the structure of the selvage assembly device can be freely changed in design by assembling conventionally known mechanical elements.In short, the present invention is advantageous in that the selvage assembly device is provided on a shirt torqueless loom such as a rapier loom. It has the biggest feature.

Therefore, the mounting position of the selvage device is the rapier rod (10) that reciprocates through the warp thread opening with a stroke greater than the width of the fabric.
This is a device for intertwining the selvage thread (5) with the weft thread loop difference (B) so that the selvage thread (5) can be selvedge-knitted at the tip of the weft thread without cutting the weft thread.

To do this, insert the selvedge thread (5) into the loop gap (B) of the weft thread (2).
), and a receiving claw (21) that receives the selvage thread (5) fed into the ring gap (B), and this receiving claw (21) and the feeding needle (20) ) are placed in a position relative to the rapier hoop (10) that sequentially feeds the weft yarn tip loop gap (B) into the first loop gap (A) of the selvedge yarn formed by these cooperative actions. That's what I did.

In order to pass the first axis difference (A) of the selvedge thread (5) to the ring difference (B) of the weft thread at the tip of the rapier rod (10), the rapier rod (
10) forms a notch (11) at the bottom and the weft loop difference (
An insertion space (12) for the feeding needle (20) is formed between the rapier rod (10) and the rapier rod (10). In addition, a small roller bearing (13) is attached to the thread volume part of the head of the rapier rod (10).
) to prevent wear and tear of the weft threads due to friction.

The feeding needle (20) for the selvage thread (5) is attached to the end of the needle bar (22) so that it enters and retreats into the insertion space (12) at the stop position where the rapier bar (10) moves forward and stops moving back. Attach the selvage thread (
5) Acts as a transfer. At the tip of the needle bar (22), there is a guide bar (23) for the selvedge thread, which widens the loop gap (C) that will become the next loop gap (A') and moves it to the next rapier bar (10
) to ensure insertion into the ring gap (A).

An example of power transmission for cooperation between the feed needle (20) and the receiving claw (21) is shown in FIG. Namely.

A camshaft (24
) is transmitted to the Cheno wheel (25), the rotational force is transmitted to the receiving pawl shaft (26) of the receiving pawl (21) by gear reduction. On the other hand, the swinging motion of the feed needle (20) is caused by the cam rod (
29) is coupled to the needle bar (22) via the intermediate bar (30).

This is done by swinging the needle bar at the fulcrum (31). Groove cam (27
), various known cams can be used, such as a horizontal disc cam, an upward cam, or a swash plate cam instead of a drum. Further, since the swinging movement of the needle bar can be achieved by a mechanism other than the cam, the movement transmission mechanism is not particularly limited.

The movement of the rapier (10) draws out the excess weft threads with a stroke larger than the width of the fabric in order to form the selvedge (6). Additionally, the selvedge thread is pulled out with a large movement while forming a large loop difference. Therefore, it is necessary to add a thread tension and pull-back device for pulling out and stopping these threads to the rapier rod and the selvedge device. However, these thread tension and thread pull-back devices may be of the known type and are commonly used in conventional sewing machines, and will therefore be omitted here.

Using the above-mentioned apparatus, the order of forming the loop assembly ear part (6) shown in FIG. 1 is illustrated in FIGS. 3-3.

However, the warp threads are omitted from the illustration. First, ■ is the point when the reed is driven in, the rapier holder (io) returns to the left, and the first ring difference (A) by the right selvedge thread (5) is inserted into the receiving claw (21).
) and the guide bar (23) at the tip of the retracted needle bar (22), and the feed needle (20) is retracted and on standby. ■ is where the rapier bar (1o) advances and enters the first wheel gap (A), and ■ is where the rapier bar (1o) advances further and passes the first wheel gap (A) to reach the leading edge and fill the insertion space of the rapier bar. This is where the feed needle (20) enters,
(2) The first ring gap (A) separates from the receiving claw (21), the feed needle (20) penetrates the insertion space of the rapier bar, and the weft thread (2
) shows the state in which the selvedge braid thread (5) is fed into the ring slit (B). ■ is a rapier (10) leaving a weft wheel gap (B) and on the way back, the second wheel gap (C) is on the right side of the first wheel gap (A).
) is received by the receiving claw (21), and the feed needle (20) is shown to have come out of the weft loop (B). At this time, the first axis difference (A) gradually becomes smaller by pulling back the selvedge yarn. ■The rapier rod (10) returns to the starting position on the left,
The second wheel difference (C) becomes larger and becomes the next first axle difference (A), and the ring of the original first wheel difference (A) becomes smaller and becomes a complete ear, returning to ①.

The selvage assembly device according to the present invention is provided in pairs with a rapier bar on the left and right sides of a loom, and has both selvage parts as a folded selvage part (4) shown on the left side of FIG. By changing the arrangement of the looms, such as making the selvedges (6) alternate, or by installing two sets of short rapiers to the center of the loom to create a two-row loom, the arrangement of the rapiers, etc. It can be used in addition to a shirt torqueless loom.

<Effects of the Invention> The selvage tissue obtained as described above becomes a durable fabric that is equivalent to or stronger than the selvage tissue obtained using a conventional shirttle loom, and is suitable for use in heavy packaging bags such as rice and wheat bags. It is useful as a base fabric or a base fabric for large sheets such as piled sheets and canopies. Moreover, this weaving is possible on a high-speed shirt torqueless loom, and requires only the addition of a selvedge device with a simple structure and modification of the rapier rod, so the modification cost is not very high. This high productivity can now be used directly for the production of ear tissues, resulting in significant effects such as labor savings during weaving and reductions in product costs.

[Brief explanation of drawings]

FIG. 1 is an enlarged plan view showing the ear assembly part of the ear tissue of the present invention with the middle part omitted, FIG. 2 is a side view showing an example of the tip of the rapier rod and the ear assembly device, and FIGS. FIG. 3 is an explanatory diagram showing the order of sets. (1) Ear tissue material (2) Weft yarn (3) Warp yarn
(4) Folded selvage (5) Ear braid thread
(6) Ring set ear part (10) Rapier rod (11)
Notch (12) Insertion space (2o) Feed needle for selvedge thread (21) Receiving claw (22) Needle bar (23) Guide bar (A) First loop difference for selvedge thread (B) Loop difference for weft thread (C) The difference between the second loop of the selvedge thread or more

Claims (1)

[Scope of Claims] 1 Textile fabric (1) The selvage portion is a folded selvage portion of the weft yarn (2) (
A rapier loom characterized by a selvedge without a cut end of the weft consisting of 4) and a loop selvedge (6) in which the selvedge selvedge (5) is entangled with the folded back of the weft. Ear tissue. 2 The selvedge part (6) is the first selvedge (A) of the selvedge yarn (5)
The loop gap (B) of the weft thread (2) sent by the rapier rod (10) passes through the loop gap (B) of the weft thread, and then the second loop gap (C) of the selvedge thread (5) is passed through the loop gap (B) of the weft thread. ) passes, and the difference between these rings (A)
The ear tissue article according to claim 1, characterized in that it has an ear assembly structure formed by sequentially tightening (B) and (C). 3. A rapier loom comprising a rapier rod (10) that reciprocates through the warp opening with a stroke greater than the width of the fabric, and a selvage device that selvedges the weft yarn without cutting it at its tip position. Ear-closing device. 4 The selvage braiding device includes a feed needle (20) that feeds the selvedge thread (5) into the ring slit (B) at the tip of the weft thread (2), and the selvedge thread (B).
A catch claw (2) that catches the selvedge thread (5) sent inside.
1), the receiving claw (21) and the feeding needle (20
) and the first part of the selvedge thread formed by these cooperative actions.
The lug of the rapier loom according to claim 3, characterized in that the ear of the rapier loom according to claim 3 is arranged in a position relative to a rapier rod (10) that sequentially feeds the ring difference (B) at the tip of the weft yarn into the ring difference (A). assembly equipment.