JPH0346573B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a weaving method for creating patterns using a shuttleless loom.

(Prior art) The present inventor previously filed Japanese Patent Application No. 61-200348 (Japanese Unexamined Patent Publication No. 63
-Refer to Publication No. 59445). In this method, the weft is wound onto a cylindrical drum that has a concave portion S in one place on the flange on the shuttleless loom side using a flanged drum with a circumference length equivalent to the width of the woven cloth, and the drum surface is wound at the weft insertion position of the shuttleless loom. Arranged perpendicular to the weft driving direction,
A shuttleless weaving machine characterized in that it is equipped with an unwinding control device that presses or separates the weft threads on the drum at one point, and is operated for each pick of the loom to perform weaving. This is a method of weaving kasuri patterns and patterns using a loom.

(Problems to be Solved by the Invention) The above is an excellent invention in that it is possible to easily and efficiently weave any desired wide-width kasuri or patterned fabric using a shuttleless loom, which has been a dream of the industry since ancient times. However, the present invention is a further improvement on this, that is, in the above invention, it is now possible to weave a variety of pattern patterns with the same dyed yarn or pattern pattern constituent yarn. This is what I did.

(Means for Solving the Problems) The present invention has the following configuration for the above purpose.

That is, in the present invention, the length of one weft yarn necessary for weaving a fabric is made into a repeat length, and the yarn of the repeat length is colored, discharged, thickened, etc. necessary to create a pattern, and then It is wound onto a flanged cylindrical drum with a circumferential length equal to the repeat length, and the flanged cylindrical drum is arranged at the weft insertion position of the shuttleless loom with its ring surface perpendicular to the weft driving direction. A recess S is formed in one part of the collar on the shuttle loom side, and a shuttle release control means is provided near the recess to press and release the yarn by a repeat length for each pick. On the other hand, two fixed guides are provided between the flanged cylindrical drum and the shuttleless loom, and a floating guide is provided between these fixed guides, and the weft yarn passing between the fixed guides is directed out in the traveling direction through the floating guide. By making it move, the length of the unraveling from the unhulling control point on the flanged cylindrical drum to the selvage of the fabric on the loom becomes longer or shorter, and various patterns are woven. It is characterized by making it so that

The present invention will be further illustrated by the following examples.

(Example) The length l (repeat length) of one weft thread is 150 cm.
Divide this repeat length into three equal parts and color each 5cm of each 50cm. This was applied to the circumference of a flanged cylindrical drum with a cylinder length of 150 cm in Japanese Patent Application No. 61-200348 (Japanese Unexamined Patent Publication No. 63-2003).
In addition to winding using the method disclosed in Japanese Patent No. 59445), an unwinding control device is also provided at one location on the cylindrical drum to press or release the weft, and this is applied to each pick of the loom. Activate.

Fig. 1 schematically shows the above-mentioned weaving state, in which 1 is a weft, 2 is a flanged cylindrical drum, and one location of the flanged cylindrical drum on the shuttleless loom side forms a notched recess S. 3 is an unwinding control device disposed near the recess S, 4 is a shuttleless loom, 5 is a woven fabric woven by the shuttleless loom, and 6 is a fixed guide. In this case, A-B=B-C=150cm, and the color pattern m is a pattern parallel to the selvage of the fabric.

By the way, the present invention provides one fixed guide 7 between the shuttleless loom and the shuttleless loom as shown in FIG. The yarn is caused to move appropriately outside the running direction through the rotation of 1.
0 is the drive motor of the camshaft.

Therefore, in this example, the distance S between fixed guides 6 and 7 is 20 cm.
Then, the floating guide 8 moves from the running line of the thread 1 to h=
If it is off by 10cm, n=√10 ² +10 ² = 14.14cm
So, the S = 20cm becomes 14.14cm x 2 = 28.28cm, and becomes 28.28-20cm = 8.28cm longer. In other words, in the illustrated example, the pattern position f on the weaving will be shifted to the right by about 8.28 cm, and at this time the rotation speed of the loom will be
If 200R/M, the weft density of the fabric is 50 threads/inch, and the cam 9 rotates once at a constant speed, 200÷50=4 inches of fabric will be woven, and the pattern will move about 8.28 cm to the right while weaving 2 inches. Then, during the next 2 inches of weaving, the pattern will move 8.28 cm to the left and return to its original position.

However, the length supplied as weft is usually
8.28 repetitions when 100 wefts are woven, which is 150cm.
cm is getting shorter. That is, 8.28cm÷100=0.0828cm
Therefore, each time we weaved, we were fed about 0.0828 cm shorter, and conversely, the next 2 inches were fed for the same reason.
This means that the length of one weft thread per 0.0828 cm is long, but in shuttleless looms, about 50 to 60 mm is used on the outside of the selvedge of the fabric on one side, so the length of one weft thread is Even if the length is about 0.5 cm long or short, it can be woven without any problem.

The above is an example of changing the pattern by relatively simple means, but by carrying out the following further steps, it is possible to weave patterns that can vary infinitely.

Change the shape of the cam.

Change the rotation ratio of the cam to the rotation speed of the loom.

Change the addition of pattern structure to the thread.

Two or more sets of the above-mentioned devices for supplying the weft to the loom are arranged for one loom.

Change the combination of the above.

FIG. 3 shows an example of a cam device for effectively obtaining the above-mentioned pattern change, in which a cam 11 shaped like a cocoon is sandwiched between two semicircular plates 12a and 12b, and the central portion The camshaft 13 is rotated at the position by the drive of the motor 14,
At this time, a plurality of slits 15, 15', 1 are formed in the radial direction of the opposing discs 12a, 12b in the opposing state.
5'', 15... are bored at arbitrary angles, and floating guides 16, 16', 16'', 16... are slidably fitted into each slit 15, 15', 15'', 15... It becomes.

Therefore, when the cam 11 is rotated by the drive of the motor 14 (dotted chain line in the figure), each of the floating guides 16,
16', 16'', 16... are each slit 1
5, 15', 15'', 15... as shown by the dashed line, and therefore the weft length guided by these floating guides 16, 16', 16'', 16... changes in a complicated manner. It becomes something that can be done. In this drawing, 17 is a spacer for holding the discs 12a and 12b at a constant distance, and 18a and 18b are stands that support the cam device at a constant height.

(Effects of the Invention) The present invention is constructed as described above, and can be made into a product with a pattern that changes in a complex manner by adopting simple means. It is an excellent product that allows endless variations in fabrics, and allows for the production of fabrics that meet the needs of small lots at a low cost and easily.

[Brief explanation of drawings]

Figure 1 shows the patent application filed in 1986, which was previously proposed by the present inventor.
2 is a schematic diagram showing the method of No. 200348, FIG. 2 is a schematic diagram showing the method of the present invention, and FIG. 3 is a diagram showing an example of a cam device, in which A is a front view and B is a side view. 1... Weft, 2... Cylindrical drum, 3... Unwinding control device, 5... Woven fabric, 6, 7... Fixed guide, 8
... Idling guide, 9 ... Cam, 10 ... Drive motor, 11 ... Cam.

Claims (1)

[Claims] 1. The length of one weft thread required for weaving a fabric is considered as repeat length, and the repeat length is defined as the repeat length by adding coloring, discharge dyeing, thick/thin, etc. necessary to create a pattern to the thread of that repeat length. It is wound onto a flanged cylindrical drum with the same circumference length, and the flanged cylindrical drum is arranged at the weft insertion position of the shuttleless loom so that the ring surface is perpendicular to the weft insertion direction, and the flanged cylindrical drum is placed on the shuttleless loom side. One part of the collar is formed into a notched recess, and near the recess is provided an unwinding control means that presses and releases the yarn by a repeat length for each pick, On the other hand, two fixed guides are provided between the flanged cylindrical drum and the shuttleless loom, and a floating guide is provided between these fixed guides, so that the weft passing between the fixed guides is moved outside the traveling direction via the floating guide. A variety of pattern patterns can be woven by lengthening or shortening the unraveling length between the unwinding control point on the flanged cylindrical drum and the selvage of the fabric on the loom. A method of weaving patterns using a shuttleless loom.