JPH05321094A - Method for changing cloth doffing length - Google Patents

Abstract

PURPOSE:To enable a change in the set cloth doffing length by reasonable judgment according to the actual state using the proper set cloth doffing length. CONSTITUTION:Plural set cloth doffing lengths are provided and the cloth doffing time to arrive at each of the plural set cloth doffing lengths is predicted at a prescribed time or when the set cloth doffing length is attained during the weaving. A loom is stopped at any one of the plural set cloth doffing lengths based on any one of the prescribed criteria from the results of prediction. The prescribed criteria are set for items such as priority of the forward set cloth doffing length, priority of the final set cloth doffing length, priority of the set cloth doffing standard length and further priority of the set cloth doffing length in the minimum waiting period.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for stopping a loom during a weaving set time period by changing the set length of the stocking as needed during weaving.

[0002]

2. Description of the Related Art Many looms automatically stop under an automatic control system when the weaving length reaches a target fabric weaving length during operation of the loom. If the stop time is an unmanned operating time zone such as nighttime, the loom continues to be stopped until the subsequent set-up time period (manned operating time zone), and the operating rate of the loom is reduced.

Therefore, the invention of Japanese Utility Model Laid-Open No. 4-13685 proposes that when the weaving time is predicted during the weaving and before the set length of the stocking inventory is reached, and the estimated time is within a predetermined time zone, It is disclosed that the set length for cloth wholesale is changed so that the time for wholesale falls outside a predetermined time zone. According to the above-mentioned technique, the change of the set length for cloth wholesale is set as a change value that deviates from the predetermined time period. However, this modified value is
The specific value is not clearly disclosed.
Therefore, depending on the selection of the changed value, the weaving length will be half-finished, and if a product with a certain weaving length is required, the weaving length will be wasted, and product management and An unfavorable state occurs from the viewpoint of handling.

[0004]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to make it possible to change the set length of the cloth wholesaler to an appropriate length during weaving by making a reasonable judgment according to the actual conditions of the cloth factory.

[0005]

Means for Solving the Problems For the above object, the present invention has a plurality of set-up counts, and a plurality of set-up counts are set at a predetermined predicted time during weaving or when a set set-up count is reached. The cloth looming time to reach the set length is predicted, and the loom is stopped at any one of the plural cloth set lengths based on a predetermined judgment criterion based on the prediction result. Here, the predetermined criteria are, according to the actual condition of the weaving factory, prioritization of the first set length of inventory count, priority of the last set length of inventory count, priority of the original set length of regular length count fabric, and minimum waiting time. It is set based on criteria such as prioritizing the set length of the inventory count.

[0006]

[Configuration of Control System] FIG. 1 shows the overall configuration of the control system 2 in relation to the loom 1 to be controlled. The loom 1 is connected to the loom control unit 3 and the central processing unit 6 inside the control system 2, and is controlled by the loom control unit 3 and the central processing unit 6 above it. The central processing unit 6 is connected to the display unit 8 and the input unit 9 in addition to the memory unit 7.

Then, the central processing unit 6 detects the remaining winding amount of the warp yarn beam 4 by the winding amount sensor 10 and the winding amount of the clothing roll 5 by the winding amount sensor 11, and by the program according to the present invention, the loom. Judgment the stop time of 1 and change the weaving length for cloth wholesale.
The central processing unit 6 is internally provided with a hardware or software counter, and this counter counts the actual weaving length during weaving.

A program for changing the length of stocking is prepared in different modes for each of the following Examples 1, 2, and 3 based on the present invention. These programs are claimed in the claims. It corresponds to claims 1, 2, and 3 in the range.

[0009]

[Embodiment 1] This embodiment 1 has a plurality of set cloth lengths, predicts a cloth stock time to reach each future cloth cloth set length at a predetermined predicted time during weaving, and predicts the cloth cloths. Judgment is made as to whether or not the stocking time is within the cloth stocking set time zone, and the judgment result is used to stop the loom at any one of the plurality of cloth stocking set lengths based on a predetermined judgment standard. Here is an example. FIG. 2 shows a program based on the first embodiment.

First, the operator starts the program, operates the input unit 9 for initial setting input, confirms the display unit 8, and resets the internal counter of the central processing unit 6, and A plurality of weaving lengths for stocking, for example three set lengths L
1, L2, L3, the time when the worker is present as the time when the inventory can be carried out, the inventory setting time zone T such as a specific time point during that time, the predicted time t0, other mathematical expressions necessary for calculation, and predetermined judgment criteria. After inputting while setting, the loom control unit 3 is given an operation command to start the loom 1 and set the loom 1 in the operating state. While operating the loom 1,
The winding amount sensors 10 and 11 detect the remaining winding amount of the corresponding warp yarn beam 4 and the winding amount of the cloth of the clothes roll 5, respectively, and send the data to the central processing unit 6.

At the time when the current time t reaches the predicted time t0 during weaving, the central processing unit 6 reads a plurality of cloth set lengths L1, L2 and L3 from the memory unit 7, and the weaving lengths are different from each other. All the stocking times t1, t2, t3 that reach the target are collectively predicted, and it is determined in the following three steps whether the predicted stocking times t1, t2, t3 are within the stocking set time T Then, depending on whether the stocking time t1, t2, t3 is within the stocking set time zone T or not, a new target stocking set length L0 is set. The predicted time t0 is set every time the shift start time or a predetermined time elapses every time when the weaving length shorter than the set lengths L1, L2 and L3 by the predetermined length is reached, or every constant weaving length, or at a fixed time every morning. Each time, etc., it is set by the initial setting input.

When at least one of the estimated inventory times t1, t2, t3 is within the inventory period T, the corresponding inventory setting length, for example, the inventory setting length L2 corresponding to the inventory time t2 is set. Set and change as the target inventory setting length L0, but if there are multiple entries, set the target inventory setting by giving priority to any one of the following input criteria- Determine the length L0.

Priority is given to the original set length for cloth stocking: This is effective when the set length for cloth stock is required to be as close as possible to the original set length for cloth stock depending on the type of fabric. Here, the original set length of inventory is equivalent to a single set length of inventory according to the related art, and according to the present application, it is preset among a plurality of set lengths L1, L2, L3. Any one of them corresponds to this. Prioritize the shortest set length: This is effective when a short weaving length is required depending on the type of fabric. Also,
It is also effective in the point that the nearer the future, the shorter the setting length and the higher the reliability of the prediction. This is because if a set length in the distant future is selected, there is a high possibility that the prediction result will change due to subsequent changes in the operating rate. Prefer the longest set length: This is effective when a long weaving length is required depending on the type of fabric.

When none of the predicted stocking times t1, t2, t3 falls within the set stocking time period T, one of the following judgment criteria input for that time , New target set length L0
To decide. In this case, since the loom 1 is stopped at a time other than the set time period T of the cloth unloading, it is a priority that the actual damage is small.

Prioritize the original set length for cloth stocking or a set length close to the set length: This is effective when the cloth set length as close as possible to the original set cloth stock length is required depending on the type of fabric. Prioritize the shortest set length: This is effective when the weaving length is required to be short depending on the kind of the woven fabric as described above. Prioritize the longest set length: This is effective when a long weaving length is required depending on the type of the woven fabric as described above. It is also effective in that the farther the future, the less reliable the prediction. This is because there is a high possibility that the predicted stocking time will fall within the set time zone due to subsequent changes in the operating rate. The set length with the shortest time from the predicted stocking time to the start of the subsequent set time of the stocking is prioritized: This prioritizes the set length that minimizes the loom stop time, that is, the waiting time. The time from the predicted inventory time for a plurality of inventory setting lengths L1, L2, L3 to the start of each subsequent inventory setting time zone is calculated, and the inventory setting length corresponding to the smallest of these Can be set to the target set length L0 of the cloth.

In this way, the predicted stocking times t1, t
A target inventory setting length L0 is set according to the judgment criteria in each case, depending on whether or not t2 and t3 are in the inventory setting time period T or not. The set length L0 of the cloth wholesaler is displayed if necessary. After this,
Based on the weaving length L obtained from the winding amount sensor 11, [current weaving length L = target set cloth length L0? ] When the target length is reached, the loom 1 is stopped and the program ends. In addition, [current weaving length L = target set cloth length L0? In parallel with the above judgment, it is also judged whether or not the current time t has reached the next predicted time t0, and the next predicted time t0 before the weaving length reaches the target set length L0 Is predicted, the predicted time t0
The above-mentioned program is repeatedly executed with respect to the future set amount of inventory setting, and a new target set length of inventory L0 is determined.

In the above embodiment, all of the plurality of set cloth lengths L1, L2, and L3 are collectively predicted, and the target cloth set length L0 is determined based on the prediction results. However, this prediction step may be sequentially performed for each set length, and the target stocking set length L0 may be determined for each set length prediction. That is, first, it is determined whether or not the predicted stocking time t1 is within the stocking set time zone T for a certain standard (standard length) set stocking length L1, and if it is, the target is set. Set length L0
If it is not entered, it is determined whether or not the inventory time t2 is within the inventory time period T for other inventory setting length L2 close to the standard inventory setting length L1. The above steps are repeated for the other set length L3 for the inventory count until the found one is found. Also,
If none of the plurality of inventory setting lengths L1, L2, and L3 is within the inventory setting time period T, one of the inventory setting lengths is set as the target setting length according to the predetermined judgment standard as described above. And

In the above embodiment, the predicted time t0
Is set as a predetermined time before reaching the set length of cloth inventory, but instead of this, set lengths of cloth inventory L1, L2, L3 are set instead.
It may be the time when it reaches. In this case, in order to stop the loom 1 at any of the set lengths of the inventory, it is necessary to stop the loom 1 at every predicted time t0 when the set length of the inventory is reached, when it is determined to be necessary. Therefore, unlike the above-described embodiment, the target set length L0 of the cloth is not determined, and it is simply determined whether the loom 1 is stopped or the weaving is continued at the current predicted time t0. Will be done. That is, first, at the time when the first set inventory length L1 is reached, all the remaining inventory set lengths L2, L3 in the future.
Predict the stocking time for. At this time, since the future set length of the inventory count is prioritized, it does not matter whether or not the current time is within the inventory count time period T. If either of the predicted inventory time t2 or t3 falls within the corresponding inventory setting time zone T, the entered inventory counting time zone T
The weaving machine 1 is scheduled to stop and the weaving is continued. That is, if there is something in the future, the future is prioritized and the stop is scheduled regardless of whether or not the current time is in the set time period T of the inventory.

Further, if neither of the predicted time t2 or t3 of the predicted inventory time falls within the corresponding time period T of the inventory period, the loom 1 is stopped later within the time period T of the inventory period. Therefore, the weaving machine 1 is stopped at the current time t to avoid wasteful weaving. If weaving is continued,
After that, the same judgment is repeated every time when the set lengths L2 and L3 are reached. By the way, if none of the future stocking time predicted at the second and later predicted times is within the corresponding stocking set time zone T, the current time is
There is a high possibility that the set length was within the set time period T for the inventory according to the previous prediction. In the case of this determination, unlike the above-described embodiment, the set length of the future target is not determined, and therefore it is not necessary to sequentially predict.

[0020]

[Embodiment 2] This embodiment 2 is provided with a plurality of set lengths for stocking, and each time when the set length for stocking is reached during weaving, it is determined whether or not the current time is within the set time for stocking. In this example, the loom 1 is stopped if it is present, and the weaving is continued if it is not. FIG. 3 shows the program of this embodiment.

After the program is started, the operator sets the loom 1 in the operating state by inputting necessary setting data and the like by the initial setting input and giving an operation command, as in the above embodiment. After that, the central processing unit 6 first determines whether or not the current weaving length L has reached the n = 1st cloth-loading set length L1 by counting up a counter that inputs a signal from the winding amount sensor 11. When the weaving length L reaches the inventory setting length L1, it is judged whether or not the current time t1 is within the inventory setting time T, and when it is not within the time , N is stepped, and weaving is continued, and in the following program, it is repeatedly determined sequentially whether or not the current weaving length L has reached that value for the n = 2nd cloth-clothing set length L2. ,
When the time is within the time zone, the loom 1 is stopped, the cloth loading time, the cloth loading length, and the like are displayed, and the loom 1 is stopped, and then the program ends. As a result of continuing the weaving, when the final set length of the inventory count reaches n = MAX (MAX is the set number of the inventory length set)
Then, the loom 1 is unconditionally stopped, and then the program ends.

[0022]

[Embodiment 3] This embodiment 3 is provided with a plurality of set lengths for stocking, and predicts a stocking time at which a set length for future stocking will be reached each time each set length for cloth is reached during weaving. It is determined whether the estimated inventory time and the current time at which the inventory length has reached the set length are within the inventory time zone, and using this determination result, multiple inventory settings are made based on the predetermined criteria. This is an example in which the loom 1 is stopped at any one of the set lengths for the cloth wholesaler. FIG. 4 shows the program.

Similar to the above-mentioned embodiment, after starting the program, the operator inputs necessary setting data by initial setting input, and starts the loom 1 by an operation command. During weaving, the central processing unit 6 first determines that the initial cloth setting length L1 is reached by setting n = 1 from the count-up state of the counter, and the weaving length L is the target cloth setting length L1. At the time t1 of reaching the inventory time t2, the inventory time t2, t for other inventory setting lengths L2, L3 is reached.
3 is predicted, and in the subsequent steps, the stocking time t1, t2, t
It is determined whether or not each of the items 3 is in the respective set time period T for the stocking, and when the current time t1 is in the stocking time period T, the loom 1 is immediately stopped to give priority to this. Let Further, when the current time t1 of the stocktaking is not within the time of the stocktaking time, other time t2 of the stocking of t, t
When any of the three or one of them is within the set time period T of the inventory, the predicted inventory time t2,
The weaving machine 1 is scheduled to stop at t3, and n is incremented to continue weaving.

However, the predicted inventory times t1, t2, t
When any of 3 is out of the set time period T for cloth-counting, the loom is stopped at the present time when the criteria are satisfied according to any one of the following criteria entered in advance. .. If not satisfied, n is stepped to continue weaving.

Unlocking the loom unconditionally at the present time: This judgment criterion is any predicted tundling time t1, t2, t3
This is based on the fact that if the cloth-loading set time zone is not reached, even if the loom is stopped at any of the cloth-loading set lengths L1, L2, and L3, it does not change. If the current inventory setting length is the original inventory setting length,
Weaving machine stop: This is effective when it is desirable to set the original set length of the fabric as much as possible depending on the type of the fabric. When the time from the current time to the start of the subsequent inventory setting time zone is shorter than the time from another predicted time to the start of the subsequent inventory setting time zone, the loom stop:
This is effective in minimizing the waiting time.

At least one of the predicted stocktaking times
When the weaving is continued because one of the items is within the set time zone T or when the stop criterion is not satisfied, after that, at each time when the set lengths L2 and L3 of the inventory are reached. , Repeat the same judgment. As a result of continuing the weaving, if the final set length for the cloth wholesale is reached, n =
Check MAX and unconditionally stop the loom 1 before ending the program.

[0027]

According to the present invention, in any of the embodiments, by setting a plurality of set lengths of the inventory to just the lengths of the divisions, the loom can be stopped at any of the set lengths of the inventory. The product is not wasted, and it is convenient for product management and handling. further,
Since it is possible to enter the cloth stocking time into the cloth stocking set time zone as much as possible, it is possible to improve the operation rate of the loom.

Further, in claim 2 or claim 3, the judgment time is every time when the set length of each cloth stocking is reached, and the current time is within the cloth stocking set time zone when judging whether to continue weaving or to stop the loom. In order to consider whether or not the loom is present, it is possible to reliably stop the loom at the current time within the cloth-stocking set time zone when the current time is within the cloth-stocking set time zone. Therefore, the loom can be more surely stopped within the set time period for the inventory compared to the conventional technique or the method relying entirely on the prediction method as in claim 1.

[Brief description of drawings]

FIG. 1 is a schematic block diagram of a loom to be controlled and a control system.

FIG. 2 is a flowchart of the first embodiment.

FIG. 3 is a flowchart of a second embodiment.

FIG. 4 is a flow chart of a third embodiment.

[Explanation of symbols]

 1 Loom 2 Control system 3 Loom control unit 4 Warp beam 5 Clothing roll 6 Central processing unit 7 Memory unit 8 Display unit 9 Input unit 10 Roll volume sensor 11 Roll volume sensor

Claims (3)

[Claims] 1. A plurality of set lengths for cloth wholesaler are provided, and during weaving,
Predict the inventory time at which each set inventory length is reached at a predetermined forecast time, determine whether the forecast inventory time is within the inventory count time zone, and use this determination result to determine the predetermined inventory time. A method for changing the length of inventory according to which the loom is stopped at any one of the preset lengths of the inventory based on the judgment criteria. 2. A plurality of set lengths for stocking are provided, during weaving,
Each time it reaches the set length of each inventory, it is judged whether the current time is within the set time zone of the inventory, and if it is, the loom is stopped, and if it is not, weaving is continued. How to change the cloth wholesaler. 3. A weaving set length is provided, and during weaving,
Each time the set inventory length is reached, the inventory time to reach the future inventory set length is predicted, and the estimated inventory time and the current time when the inventory set length is reached are entered in the inventory set time zone. Whether or not the loom is stopped at any one of the set lengths of the inventory setting length based on a predetermined determination criterion using the result of the determination. Modification method.