JP2549037B2 - A method for estimating the amount of yarn in a shuttlecock weave - Google Patents

Description

Detailed Description of the Invention

The present invention relates to a yarn amount estimating method for quantitatively obtaining the amount of wefts used from a design drawing of a shuttlecock weave having a large number of colors such as Nishijin weave.

[0002]

2. Description of the Related Art In a shuttlecock weave using a shuttlecock, as shown in FIG. 1, the shuttlecock is passed through a shuttleway formed by dividing warp yarns into upper and lower parts.
A woven fabric is woven by three-dimensionally intersecting the warp yarns wound on the shuttle with the warp yarns. Since the woven fabric is usually face down, the colored yarn passes under the warp in the part where the pattern appears, forms a pattern by covering the ground yarn by horizontal striking, and the warp in the part without the pattern. Pass over.

In Nishijin weaving, which is known as the highest-quality shuttlecock weave, the basic unit in the direction in which the weft threads are arranged, that is, the weaving direction, is called Yue, and the basic unit in the direction in which the warp threads are arranged is called the mouth. The number of weft yarns is much larger than that of other shuttlecocks, and it is not uncommon that several tens of weft yarns are used for weaving one weft. Therefore, the usage amount of the weft thread becomes very large.

In such Nishijin textiles, when the design is completed, a design drawing is first created. Next, based on the design of the created design drawing, the shuttle is replaced and the usage amount of the weft thread is estimated. Then, the weft yarn is ordered based on the estimated usage amount of the weft yarn, and is handed over to the weaver.

Basically, the amount of weft thread used in the shuttlecock weave is determined from the design drawn on the design drawing. However, the actual usage amount is considerably larger than the usage amount obtained from the design. This is because it is unavoidable to waste the interference of weft threads called "hooking" and "pressing".

As shown in FIG. 2 (A), "hooking" means that the weft of A color wound on the shuttle a that has run first is caught by the weft of B color wound on the shuttle b that runs later. It is a phenomenon. Moreover, as shown in FIG.
This is a phenomenon in which the B-color weft thread wound around the shuttle b that ran first is pressed down by the A-color weft thread wound around the shuttle a that runs later.
Represents the order of movement of the shuttle. When these interferences occur, the weft threads are consumed more than necessary.

Accurate estimation of the amount of wefts used is very important for preparing the wefts in proper quantity. This estimation has hitherto been made with the intuition of a skilled person.

[0008]

However, in a shuttlecock weave having a large number of colors such as Nishijin weft, the weft threads interfere intricately, and it takes a long time to estimate the usage amount of the weft thread only by the expert's intuition. Takes. In addition, even if it is estimated over a long period of time, it is difficult to say that the estimated usage amount is accurate, and it is inevitable that weft excess or deficiency occurs during weaving. If the number of weft yarns is too large, the cost of the fabric will be unnecessarily high.

The present invention has been made in view of the above circumstances, and provides a yarn amount estimation method in a shuttlecock weave that enables the amount of use of weft yarns to be easily and accurately estimated even when weft yarns interfere with each other in a complicated manner. The purpose is to

[0010]

A yarn amount estimating method according to the present invention finds a minimum usage amount of weft yarns necessary for pattern formation from a design drawn on a design drawing and assembles the design. Replacement of the shuttle and the operating order of the shuttle and the shuttle,
The weft thread interference position is obtained from the condition of the weft thread interference based on the positional relationship between the handle and the shuttle box and the force relationship of the interfering weft thread, and the extra weft thread usage amount obtained from the interference position is used as the minimum weft thread usage amount. It is characterized in that it is added to the total amount used.

[0011]

[ Operation ] "The order of movement of the shuttle and the positional relationship between the shuttle, the handle, and the shuttle box
The conditions for occurrence of weft interference based on
A condition that causes weft thread interference such as "holding down"
Therefore, the positional relationship between the previously run shuttle and the future run
There are basically three cases, and for each case
Unique conditions, specifically the end positions of the two handles corresponding to each shuttle
The relationship between the table and the shuttle box and the positional relationship between the ends of the handle were involved.
Will be things. For specific explanation, refer to paragraph numbers 0020 to 002.
7 is done. This weft interference condition has been
It was only sensuously grasped by skilled persons. Shi
However, in reality, there is a simple rule that is not mentioned above:
It is represented by the operating sequence and the positional relationship between the shuttle, the handle, and the shuttle.
It was found from the analysis of the present inventor. Use this
For example, the interference position of the weft thread is specified in the mouth direction, and the weft thread
The extra yarn amount caused by the interference is quantitatively grasped.
However, "the movement order of the shuttle and the positional relationship between the shuttle, the handle, and the shuttle box
Based on the condition for occurrence of weft interference based on
The identification accuracy is not always high. It ’s a “hook”
Occurrence position changes depending on "force relationship of interfering weft thread"
Because. "Hooking" due to "force relationship of interfering weft thread"
The change in the position of the "Kari" is due to the weft thread of the shuttle that ran before.
It is pulled by the weft thread hooked on it and it is released from the shuttle.
This is a phenomenon in which the position of occurrence of "grabbing" changes due to
It Here, the amount of change in the position of occurrence of the “hook” is as follows.
Force relationship between the weft thread of the shuttle running in front and the weft thread hooked on it
Depends on In other words, this "power relationship"
Depending on the type of weft (color, number, thickness, etc.)
It is the difference in the ease of unwinding of the weft, and the weft of the shuttle that ran before
The weft thread that hooked this is so difficult to be released from the shuttle
It is said that the weft thread is strong. Generally speaking, thick thread
Is stronger than a thin thread, and two threads are stronger than one thread. Also
Gold and silver threads are stronger than other colors. In the present invention
"Based on the order of movement of the shuttle and the positional relationship between the shuttle, the handle, and the shuttle.
"Weft interference condition" and "force relationship of interfering weft"
Since the weft thread interference position is specified, the specifying accuracy is high,
Therefore, the extra thread amount generated due to the weft thread interference can be obtained with high accuracy.
Round.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 3 is a flowchart illustrating a specific procedure of the yarn amount estimating method according to the present invention.

This estimation method is intended for Nishijin textiles and is carried out using a general-purpose computer having a graphic function.

In the present estimation method, first, the created design drawing of Nishijin textile is input to a computer. The computer, to which the design drawing has been input, stores the color as a basic unit of 1 over 1 unit.

When the design drawing is stored in the computer,
Using the stored information about the design drawing, a mouth meter is created for a specified number of Yue. This is done as follows.

As shown in FIG. 4, when the color A is used over a specific range, the range of use in the mouth direction is read from the design drawing information stored in the computer, and the range A is used from the total range. Determine the use range of the weft thread in the mouth direction. With respect to the weft threads of other colors, similarly, the use range in the mouth direction is obtained. By doing this for the specified number of meshes, a meter drawn toward the mouth, that is, a mouth meter is created.

The type of weft thread used and the range of use of each weft thread are known from the created meter for the specified number of crossings, and therefore the minimum required weft thread usage is calculated.

Next, information about the change of the shuttle is obtained. This information may be assembled by a skilled person, or may be automatically assembled by a computer based on the symbol information. In any case, "catch" and "hold down"
It is better to use the exchange that minimizes the interference of the weft thread.

When the information about the change of the shuttle is obtained, the change of the shuttle is applied to the condition of the occurrence of the interference of the weft, which is based on the operating order of the shuttle and the positional relationship between the shuttle, the handle, and the shuttle box, and the interference position of the weft is determined. Identify the mouth direction. The generation condition of the weft thread interference has been conventionally difficult to analyze, but in the results of examination by the present inventors, it is expressed by a simple and clear law only of the movement order of the shuttle and the positional relationship between the shuttle, the handle, and the shuttle box. Became clear. This will be explained below.

The change of the shuttle can be said to be a forward and backward operation when the shuttle reciprocates between the shuttle boxes on both sides when weaving a continuous mesh. There are the following six cases where there is a risk of weft thread interference.

In the case where the previously run shuttle is accommodated on the shuttle which is about to run (first case), the shuttle that has run previously is below the shuttle that is about to run (the third case). Case), if the previously run shuttle is stored in the shuttle box on the opposite side of the shuttle you are about to run (fifth case), in the opposite direction, ,
If it is stored on the shuttle that is about to run (second case), if there is a previously run shuttle under the shuttle that is about to run (fourth case), the shuttle that was run previously is The three cases can be considered in the case of being housed in the shuttle box on the side opposite to the shuttle that is about to run (sixth case).

In the first case, the shuttle which ran previously,
If it is housed on a shuttle that you are about to run,
In the situation as shown in FIG. 5, a “hook” occurs. That is, in FIG. 5, B-color and A-color patterns are arranged in order from the left side of the shuttle box in which the shuttles are accommodated. As for the movement of the shuttle, first, the shuttle a corresponding to the A-colored handle, which is separated from the shuttle, enters the lower shuttle, and then the shuttle b corresponding to the B-colored handle close to the shuttle is moved to the upper shuttle. The order is to enter. At this time, when the shuttle a comes out from the shuttle box to the right, the A-color weft thread wound around the shuttle a is wound around the B-color weft thread. As a result, the A-color weft thread is caught at the left end of the B-color pattern, that is, at the edge close to the shuttle box. The amount of extra yarn generated by this "hooking" is 2 (X + Z),
Even after the shuttle b comes out of the shuttle box, the waste of the weft thread due to the “hooking” remains. X is the distance between the A color pattern and the B color pattern,
Z is the length of the B color pattern in the mouth direction. In this way, when the previously run shuttle is stored on the shuttle that is about to run, the edge of the handle corresponding to the shuttle that is about to run near the shuttle box is When the handle corresponding to the shuttle is located farther than the edge of the handle close to the shuttle box, a "hook" occurs.

In the second case, that is, in the opposite direction, when the previously run shuttle is housed on the shuttle that is about to run, the right and left are reversed, as shown in FIG.
Similar to the first case, the edge of the handle corresponding to the shuttle that is about to run is closer to the shuttle box than the edge of the handle corresponding to the shuttle that was run previously. When you are in a distant place, you get a “hook”. "Caught"
The extra amount of yarn generated by is 2 (X + Z). X is the distance between the A-color pattern and the B-color pattern, and Z is the length of the B-color pattern in the mouth direction. The right end of the A-colored pattern is
It is located farther than the right end of the B color pattern.

In the third case, that is, in the case where there is a previously run shuttle under the shuttle which is about to run, "holding down" occurs in the situation shown in FIG. That is, in FIG. 7, in order from the left side of the shuttle box in which the shuttles are accommodated, A
Color and B color patterns are lined up. As for the movement of the shuttle, first, the shuttle a corresponding to the A-colored handle, which is close to the shuttle, enters the upper shuttle, and then the shuttle b corresponding to the B-colored handle away from the shuttle is moved to the lower shuttle. The order is to enter. In this state, when the shuttle a comes out from the shuttle box to the right, the A-color weft thread wound around the shuttle a
The B-color weft thread is held down by the left end of the handle. That is, at the left end of the A-colored pattern, that is, at the edge nearer to the shuttle box, "pressing" by the A-colored weft thread occurs. Then, when the shuttle b ran, the B-color weft wound on the shuttle b was 2
(X + Y) is wasted. X is the distance between the A color pattern and the B color pattern, and Y is the length of the A color pattern in the mouth direction. In this way, if there is a previously run shuttle under the shuttle you are about to run, the handle of the handle corresponding to the shuttle you are about to run is
"Holding" occurs when the edge close to the shuttle box is closer to the edge of the handle corresponding to the previously run shuttle closer to the shuttle box.

In the fourth case, ie in the opposite direction, where there is a previously run shuttle under the shuttle that is about to run,
As shown in FIG. 8, the left and right are reversed, but like the third case, the handle corresponding to the shuttle that is about to run,
"Holding" occurs when the edge near the shuttle box is closer to the edge of the handle corresponding to the previously run shuttle closer to the shuttle box. The extra thread amount generated by the “pressing” is 2 (X + Y). X is the distance between the A color pattern and the B color pattern, and Y is the length of the A color pattern in the mouth direction. The left edge of the A-colored pattern is closer to the left shuttle box than the left edge of the B-colored pattern.

The fifth case, that is, the shuttle that ran before,
In the case of being housed in the shuttle box on the side opposite to the shuttle from which the user is about to run, "pressing" occurs in the situation as shown in FIG. That is, in FIG. 9, the shuttle a that is about to run is accommodated in the left shuttle box, and the shuttle b that has run before is accommodated in the right shuttle box. The pattern is from left to right B
The colors are arranged in the order of A and A at intervals. In this state,
When the shuttle a comes out of the shuttle box, the A color weft thread presses the B thread weft thread at the left end of the A color handle. In this way, if the previously run shuttle is stored in the shuttle box on the side opposite to the shuttle that is about to run, the shuttle box that is about to run is A "hold down" occurs when the corresponding handle is farther than the handle corresponding to the shuttle that ran previously. The extra yarn amount generated by the "pressing" is 2X. X is the interval between the A color pattern and the B color pattern.

In the sixth case, that is, in the reverse direction, when the previously run shuttle is accommodated in the shuttle box on the side opposite to the shuttle which is about to run, as shown in FIG. However, as with the fifth case, the handle corresponding to the shuttle that is to be run from now is farther away from the handle corresponding to the shuttle that was previously run. "Holding down" occurs in the situation of being located at
In this case as well, the extra thread amount caused by the “pressing” is 2
It becomes X.

The conditions for the occurrence of weft thread interference have been described above, but there is another point to be taken into consideration regarding "hooking".
That is, the occurrence position of the "hook" is not necessarily uniquely determined only by the condition of the weft interference.

For example, in the case of the first and second cases in which the "hooking" occurs, in the above description, it was assumed that the weft thread of the shuttle that ran previously was not pulled by the weft thread that hooked it. the weft shuttle ran previously, pulled weft hooked this is there also potential to exit melt from shed. That is, in FIG. 5 and FIG. 6, when the weft of the A color is caught in the weft B color weft B color is not conceivable even if Ru exiting melt from shed is pulled by the weft A color. In that case, the position of the "hook" changes, and the consumption amount of the weft thread due to the "hook" changes accordingly. This is determined by the force relationship of the weft thread in which the "hooking" has occurred, that is, the thickness, the number, and the like, and further, the pattern spacing and the like. For example, a thicker thread affects other weft threads, and a gold thread and a silver thread have relatively strong force and are less likely to be affected by other threads. Furthermore, if the patterns are widely spaced,
As shown in 1, the weft threads have a strong tendency to attract each other. This
The weft thread force relationship has been empirically determined in advance for each individual case.
Use after asking.

As for "pressing", as shown in FIG. 12, the weft thread that is pressed may become a loop and cannot be completely pressed, and in this case also, the interference position of the weft thread changes.

In this estimation method, the weft yarn interference position is strictly specified in consideration of the weft yarn interference occurrence condition and the movement of the interference position due to the force relationship of the interfering weft yarns. Then, the extra yarn amount due to the interference of the weft yarn is calculated from the interference position of the weft yarn. The weft thread of the shuttle that ran before was an ordinary thread, and this was hooked.
5 and 6 for the case where the weft thread is a gold thread or a silver thread.
The movement of the interference position will be specifically described using. That is, the figure
The color A is gold or silver, and the color B is the other colors.
The weft of B color is pulled by the weft of A color (gold thread, silver thread)
By being released from the shuttle,
The position depends on other conditions, but it is usually (Z + X) / 2 position
It changes to some extent. Two A-color weft threads (gold thread, silver thread)
In this case, the amount of change in the “hook” position is about (Z + X)
Becomes In Nishijin weaving, a large amount of gold and silver threads are used.
It Also, two or three weft threads are often used. Different thickness
Many weft yarns are used. Furthermore, because the handle is complicated,
There are many "kari" themselves. Because of these, in the “hooked” position
Extra weft consumption due to changes typically accounts for a few percent of total consumption.
Occupy, if it is large, it reaches about 10%, and the variation is large, so
is there. This estimation method is based on the condition of occurrence of weft thread interference.
Not only to specify the position, but also due to the force relationship of the interfering weft thread
Considering even the change in the "hook" position, remove the extra weft thread
Accurate calculation of total cost allows accurate calculation of total consumption
It is.

As described above, when the extra yarn amount due to the interference of the weft yarns is obtained with respect to the specified predetermined number of yarns, this is added to the previously obtained minimum required weft yarn use amount. Then, by performing this for all the Yue, the total amount of weft yarns used is accurately estimated.

The present invention is not limited to the above embodiment. For example, the conditions for occurrence of weft thread interference can be changed to more precise ones.

[0034]

As described above, in the case of the yarn amount estimating method for the shuttlecock weave according to the present invention, the amount of the weft yarn used is calculated from the design drawing according to a certain law. Therefore, even when the weft threads interfere with each other in a complicated manner, the usage amount of the weft threads can be quickly and accurately obtained by using the computer. Therefore, the labor required for estimating the yarn amount is significantly reduced. Further, since the weft yarns are accurately ordered and handed over to the weaving company, there is almost no excess or deficiency of the weft yarns, and the problem of increased cost due to excess or deficiency is solved.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing the basics of a shuttlecock weave.

2A and 2B are schematic diagrams showing interference of weft threads, in which FIG. 2A shows “hooking” and FIG. 2B shows “holding”.

FIG. 3 is a flowchart showing a specific procedure of a yarn amount estimating method according to the present invention.

FIG. 4 is a schematic diagram showing how to determine a usage range of weft yarns.

FIG. 5 is a schematic diagram showing a condition for occurrence of weft thread interference.

FIG. 6 is a schematic diagram showing a condition for occurrence of weft thread interference.

FIG. 7 is a schematic diagram showing conditions for occurrence of weft thread interference.

FIG. 8 is a schematic diagram showing a condition for occurrence of weft thread interference.

FIG. 9 is a schematic diagram showing conditions for occurrence of weft thread interference.

FIG. 10 is a schematic diagram showing conditions for occurrence of weft thread interference.

FIG. 11 is a schematic diagram showing a situation in which weft yarns that have been “hooked” attract each other.

FIG. 12 is a schematic diagram showing a situation where “pressing” is incomplete.

[Explanation of symbols]

 A, B color a, b shuttle-order of shuttle

Claims (2)

(57) [Claims] 1. The minimum amount of weft thread used for pattern formation is determined from the design drawn on the design drawing, and the shuttles assembled for the design are replaced, and the order of operation of the shuttle and the shuttle, the handle. , Weft thread interference position based on the positional relationship of the shuttle box, and the force relationship of the weft thread that further interferes, the weft thread interference position is obtained, and the extra weft thread usage amount obtained from the interference position is set to the minimum weft thread usage amount. A method for estimating the amount of yarn in a shuttlecock weave, which comprises adding up to obtain the total amount used. 2. A computer stores a weft thread interference generation condition based on the order of movement of the shuttle and a positional relationship between the shuttle, the handle, and the shuttle box, and the force relationship of the interfering weft thread is stored in the computer, and the computer is assembled to the design. The yarn amount estimating method for a shuttlecock woven fabric according to claim 1, wherein the total amount of the weft yarns used is automatically calculated by inputting the change of the shuttle.