JPH0819603B2 - Equipment for production control in a textile factory - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is a production control system capable of improving productivity by allocating woven fabrics according to their suitability to a plurality of looms in a textile factory. For equipment.

[Technical background of the invention] In a loom, in particular, a high-speed shuttleless loom such as a fluid jet type, even when the same type of woven fabric is woven using the same model, for example, the monthly production (weaving length) is In many cases, one loom exhibits high productivity in a plain weave, while the productivity in a twill weave is inferior, while another loom exhibits suitability opposite to the above.

In a fluid jet loom, the relationship between the warp shedding timing and the weft insertion equipment operation timing is delicate, while the transmission mechanism to these shedding devices and weft insertion devices has a play unique to the loom. This is because the above relationship is slightly different for each loom due to the existence of the above.

That is, even if the loom is of the same type, each has a unique "habit", and this "habit" acts as a plus for weaving a certain type, but it becomes unsuitable for another type. There is. In this latter case, abnormal stoppages due to weft insertion errors frequently occur, or measures must be taken to reduce the rotational speed of the loom to avoid such abnormal stoppages. Will be reduced.

On the other hand, since woven fabric types sensitively reflect marketability, it is necessary to strictly comply with the delivery date, for example, the condition of full delivery at the end of the month, and as a result, it is not possible to receive orders that exceed past production results. It is possible.

In view of the above background, the object of the present invention is to increase the productivity of the entire loom or group of looms possessed by the factory on average, thereby increasing the production capacity of the factory or the group as a whole, and thus increasing the amount of orders. .

[Means for Invention]

Means of the present invention for solving the above problems, for each corresponding loom in a weaving factory having a plurality of loom including the same model, calculate the weaving capacity for the types of woven fabrics assigned to these looms, The capacity calculation means for grasping the suitability for the woven fabric type and the allocation instructing means for comparing and judging the weaving ability calculated by the capacity calculating means and instructing the woven fabric type and the weaving amount to be allocated next are provided. .

[Action]

According to the means, the appropriateness for the woven fabric type of the loom is grasped by the weaving ability for each type of loom calculated by the capacity calculating means. That is, even with the same type of loom, the relationship between the warp shedding timing and the weft inserting machine operation timing is delicate, while the transmission mechanism to these shedding devices and weft inserting devices is unique to that loom. Due to the existence of play, etc., the above-mentioned relationship is slightly different for each loom, and it has a so-called "habit" that acts as a plus for weaving one type, but is unsuitable for another type. There is. The present invention focuses on the fact that the suitability for different fabric types is different even for the same model, and by grasping this suitability, the difference in suitability is compared and determined, and the weaving fabric type and the weaving amount adapted to the loom are adjusted. Since the allocation instruction is given, the suitability of each loom can be effectively utilized by operating the factory according to this instruction.

〔Example〕

 An embodiment of the present invention will be described with reference to FIG.

N looms 1A, 1B, ..., 1N under the control of this embodiment
Each of these is accompanied by a capacity calculating means 2 including a signal transmitting section 3, a memory 8 and an operating rate calculating section 9. Further, the signal transmitting section 3 is, as shown in the figure with the loom 1A as a representative, an initial start (hereinafter referred to as start) time, the abnormal stop time and a subsequent restart (hereinafter referred to as start) time, a beam change of the warp beam, and Time transmitter 4, which transmits stop time for intermediate work such as succession and subsequent start time, automatic stop time after completion of weaving for a predetermined length with each stop cause identification signal, rotation speed of loom, possession of warp yarn Operation state transmitter 5 indicating the amount and the remaining amount thereof, the woven structure of the assigned woven fabric, the product type signal transmitter 6 indicating the woven product type such as the woven density, and the machine signal transmission for specifying the loom With a vessel 7 etc.,
The signal from each of the above oscillators is transmitted as the operating state signal S1. Then, the memory 8 receives this signal S1 and stores it, and the operation rate calculation unit 9 retrieves the stored data and calculates the actual operation rate E of the loom periodically and when weaving is completed. The actual operation rate E is a value calculated by excluding the intermediate work time such as the replacement of the warp beam. That is, E = H / (H + Ha) where H is the actual operating time of the loom and Ha is the abnormal stop time.

The operation flow performed by the memory 8 and the operating rate calculation unit 9 will be described with reference to FIG. In this example, the starting time is 8:00, and the regular calculation is performed every day at 8:00.

The memory 8 stores the start time ST (= 8 o'clock), and when a stop signal is transmitted thereafter, it is determined whether this is an abnormal stop or a stop for the intermediate work etc. based on the stop time SPT and the stop cause identification signal. Remember. When the cause of the abnormality is repaired or the intermediate work is completed and the start signal is transmitted, the start time STT is stored. After that, the operation rate computing unit 9 retrieves the data stored and stored, first determines whether the current stop is an abnormal stop or a stop of intermediate work, etc., and obtains the abnormal stop time Ha and the intermediate work time Hw, respectively.
Then, the actual operating time H = SPT-ST- (Ha or Hw) is calculated. This operation is repeated until the actual operating time H = SPT-ST
While calculating −Σ (Ha + Hw), the calculated values are stored in the memory 8 (the intermediate work time Tw hardly occurs on the first day).

Thus, at a fixed time (at 8:00 on the next day), the operation rate calculator 9 takes out the data stored and stored, calculates the operation rate E = H / (24−Hw) for the past day, and stores it. Then, this operation is repeated every day, and the cumulative operating rate ΣE = ΣH / Σ (24−Hw) is calculated each day. After the weaving for a predetermined length is completed and the automatic stop signal is transmitted, the average daily operating rate EA = ΣΣE / (operating days) is calculated and stored.

Here, after each data stored in the memory 8 is recorded and stored in the recorder 12 of the centralized control unit via the interface 10, the memory 8 is reset.

The allocation instruction means 15 takes out the operating state signal S1 stored in the memories 8 of the loom 1A, 1B, ... The woven fabric type to be assigned next and the weaving amount thereof are instructed to the loom. An example of the operation flow of the allocation instruction means 15 will be described with reference to FIG. In this example, for simplification of description, there are two kinds of woven fabric types, for example, plain weave X having the same weave density and twill weave Y having the same weave density, and the preset production amount of each month is input to the presetter 13. .

The instructing means 15 uses the daily operating rate E and the cumulative operating rate ΣE.
Are successively taken out, and they are sorted into those for the product type X and those for the product type Y based on the product type signal.
The drawing mainly shows the case of the type X. Next, the operating rates sorted based on the machine signal are sorted for each loom, and the transition thereof is monitored and compared to determine whether the loom is suitable for weaving of the type X or insufficient. Then, a suitable type is extracted, and the type X is to be woven into these looms in order to be continuously woven.
Assign In this state, the rotational speed signal and the warp remaining amount signal from the operating state transmitter 5 and the weaving density signal from the product type signal transmitter 6 are taken out to obtain the scheduled weaving date and time, that is, the beam replacement timing of the warp beam. In order to prepare for the next beam winding (warping) in order from the earliest arrival of this period, the warp factory 20 (Fig. 1) is instructed with the machine and the type of warp, and the winding amount (warping) (Length) is calculated and designated. That is, before the delivery date, it is judged whether or not the standard warp length can be woven, and if it is acceptable, the standard length is calculated. If not, the corresponding warp length is calculated and instructed. This judgment calculation calculates the scheduled start date and time from the planned weaving date and time and the actual time of the intermediate work, and also the rotation speed, the weave density,
It is made based on factors such as operating rate results.

During this period, when the warp threads held are consumed and the current weaving is completed, the prepared warp beam is supplied and beam replacement is performed, and this operation is repeated until weaving of the allotted amount is completed, and thereafter. Weaving of type X is continued unless there is a large change in the operating rate. Since the same applies to the product type Y, the illustration of the intermediate process is omitted in the drawing.

On the other hand, for looms that are judged to be insufficiently appropriate for varieties X and Y, the operating rates are compared for each type, a ranking is made for each, and the weaving date and time for this time is calculated, then the total order quantity for each type is taken into consideration. Then, the weaving amount to be assigned next is distributed.
For example, a certain type of loom is assigned 60% of product type X and 40% of product type Y. Then, the next warp preparation is instructed in the ascending order of the current weaving date and time, and the warp length is calculated and instructed based on the above-mentioned allocated amount and actual operation rate. These calculation procedures are performed according to the case where only the product type X is assigned.

In this way, when the current weaving is completed, the beam is changed, and the next weaving is performed, it is judged whether weaving can be performed according to the order quantity of each product while comparing the transition of the operating rate after that. Will be reflected in the next quota allocation.

Each process described above is also recorded in the recorder 12, and these records are taken in as performance information from the next time onward. In particular, since the initial distribution is more appropriately performed, the management accuracy is successively improved, and as a result, the maximum planned production amount can be accurately grasped.

The example is as described above. In this embodiment, since the assigned weft length is specified by the warp length, it is possible to eliminate waste such as unwoven fabric of warp threads. In this embodiment, the weaving capacity for each type of weaving machine is determined by comparing the operating rates thereof, but this can also be performed while actually measuring the weaving length per hour.

〔effect〕

As described above, according to the present invention, the weaving capacity for each type of loom calculated by the capacity calculating unit determines the suitability for the type of woven fabric of the loom, and the so-called “looms of the same type” may exist. By focusing on the suitability for different cloth types by `` kuse '' and grasping this suitability, we make a comparative judgment of the suitability and give an instruction to allocate the woven product type and the weaving amount that are suitable for the loom, and the optimum weaving machine. Can be assigned to improve productivity as a whole without causing incompatibility of woven fabric types.

[Brief description of drawings]

FIG. 1 is an overall explanatory view showing an embodiment of the present invention, FIG. 2 is a flow chart exemplifying an operation flow of the capacity calculating means in FIG. 1, and FIG. 3 is an operation flow of the allocation instructing means in FIG. It is an exemplary flowchart. 1A, 1B, ..., 1N Loom 2 ... Capacity calculation means 15 ... Assignment instruction means

Front page continuation (72) Inventor Mitsutoshi Ono 2 Takaracho, Kanagawa-ku, Yokohama, Kanagawa Nissan Motor Co., Ltd. (56) References JP 61-231242 (JP, A) JP 60-186357 (JP, A) JP-A-52-99362 (JP, A) JP-A-61-231246 (JP, A)

Claims (1)

[Claims] 1. A weaving capacity for each type of loom (1A, 1B, ... 1N) in a weaving factory having a plurality of weaving machines including the same model is calculated for the types of weaving cloths assigned to these weaving machines. , An allocation instruction for comparing the weaving capacity calculated by the capacity calculating means with the capacity calculating means (2) for grasping the suitability for the woven cloth type of the loom, and for instructing the woven material kind and the weaving amount to be allocated next. Equipment for production control in a textile factory, comprising a means (15).