JPH0726447A - Presetting of cut length in loom and apparatus therefor - Google Patents

Abstract

PURPOSE:To enable ready and sure presetting of a suitable cut length when presetting the cut length of a cloth roll. CONSTITUTION:This apparatus involves a table or a formula representing the correlation between the weave length and the diameter of b rolled woven fabric calculated from the thickness (A) of N fabric and the roll diameter of a cloth roll 34. When presetting the cut length, a weave length not exceeding the maximum diameter (DMAX) allowed to the cloth roll 34 and equal to an integral multiple of a prescribed unit of the length of the woven fabric is automatically or manually presetted as the cut length based on the above-mentioned table or formula.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for setting a weaving length of a loom for winding a woven fabric on a cloth roll and then performing a weaving at a predetermined weaving length.

[0002]

2. Description of the Related Art Generally, the maximum winding diameter at which a woven woven cloth can be wound on a cloth roll is limited by the mechanical space of the cloth winding portion of the loom. Therefore, when the operator sets the cut length of the cross roll, it is necessary to consider this maximum winding diameter and set a value that does not exceed this. The setting of the cut length is usually set in anti-unit which is a so-called fabric unit, and depends on the experience and intuition of the worker.

[0003]

In the case of the above-mentioned conventional method of setting the stock removal length, since it depends on the intuition of the worker, it takes a long time for the worker to set it, and it is always always allowed accurately. It is impossible to set the stock removal length to the maximum roll diameter, and the set stock removal length may exceed the maximum roll diameter. Furthermore, it is easy to set the cut length in a safe range so that the maximum winding diameter is not exceeded,
There has been a problem that the frequency of replacement of the cross rolls increases, which hinders the efficiency of work.

The present invention has been made in view of the above-mentioned problems of the prior art, and when setting the cut length of a cross roll, it is possible to easily and surely set an appropriate cut length of a loom. An object of the present invention is to provide a wholesale length setting method and apparatus.

[0005]

SUMMARY OF THE INVENTION The present invention provides a table showing a relationship between a weaving length and a winding diameter of a woven cloth which is calculated in advance based on the cloth thickness and the roll diameter of a cross roll when setting the cut-off length. Based on this table, the weaving length of the loom is set by cutting the weaving length that does not exceed the maximum winding diameter allowed for the cross roll. Further, the winding diameter of the cross roll at a certain measurement start time, the winding diameter of the cross roll at the subsequent measurement end time, and the weaving length between these two times to obtain a predetermined relationship between the weaving length and the winding diameter,
Based on this, it is a method for setting the cut-off length of a loom that seeks a weaving length that does not exceed the maximum winding diameter of the cross roll. The roll diameter of the cross roll means the diameter of the cross roll in a state where the cloth is not yet wound.

Further, according to the present invention, a setting device for setting the maximum winding diameter of the cross roll, a setting device for setting the cloth thickness, and the maximum winding diameter and the cloth thickness set by the respective setting devices are inputted,
Based on the relationship between the weaving length and the winding diameter by a predetermined arithmetic expression, data, etc., a weaving machine including a computing unit that obtains the maximum weaving length of a predetermined length unit that does not exceed the maximum winding diameter and outputs it It is a length setting device. Further, a setting device for setting the maximum winding diameter of the cross roll, a winding diameter detector for detecting the winding diameter of the cross roll, and a weaving length detector for detecting the weaving length,
The winding diameter at a certain measurement start time, the winding diameter at the subsequent measurement end time, the weaving length between both time points, and the maximum winding diameter set by the setter are input and the predetermined weaving length and winding diameter are input. A weaving machine trimming length setting device provided with a computing unit that obtains a maximum weaving length of a predetermined length unit that does not exceed the maximum winding diameter based on the relationship and outputs it.

[0007]

The method and apparatus for setting the stock removal length of the loom of the present invention are
The maximum roll diameter of the cross roll allowed by the loom that weaving can be set easily and surely based on this by using a table or calculation formula that is known in advance. It was made possible.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 show a first embodiment of the present invention, in which a loom provided with a shaving length setting device has a warp thread 12 wound around a delivery beam 10 as shown in FIG. Is sent to the weft inserting section 18 via the tension roller 14 and the heddle 16. To insert the weft yarn 20 into the weft inserting portion 18 by a weft inserting device (not shown),
The opening 22 of the warp 12 is formed, and the reed 24 is provided so as to be swingable. The woven cloth 26, which has been weft-inserted, beaten, and woven, is wound around a winding roller 28, and then passed through a guide roller 30 and then wound around a cross roll 34 provided in a cloth winding device 32 by a predetermined amount.

The cloth winding device 32 is a so-called contact winding type cloth winding device, and as shown in FIG.
A drive roller 37 which is rotated by 6 and a driven roller 38 which is rotatably provided are attached in parallel to each other. The drive roller 37 and the driven roller 38 support the side surface of the cross roll 34 around which the woven cloth 26 is wound and are driven to rotate. In addition, this cloth winding device 32
Between the drive roller 37 and the driven roller 38
At the beginning of the winding of the cloth end of No. 6, the woven cloth 26
So that the paper tube 35 of the
A cross guide 39 is provided in close proximity to the paper tube 35 at a predetermined interval according to the curvature of the.
In addition, the drive motor 36 is connected to a control device (not shown) that outputs a drive signal, and the cloth winding device 32 has an unillustrated slicing device that slashes when the cross roll 34 reaches a predetermined slicing length. It is provided.

The method for setting the cut-off length of the loom of this embodiment is as follows:
Based on the table 40 indicating the known “weaving length-cloth winding diameter relationship” as shown in FIG. 2, the operator can appropriately set the maximum winding diameter D _MAX of the cross roll 34 that is not exceeded. , Set the target inventory length. This wholesaler is
Due to its nature, a predetermined unit length (for example, 1 reciprocal) is set as a delimiter, and is not set as a length having a reciprocal number after the decimal point (for example, 7.5 reciprocal). Therefore, in this table, the weaving length corresponding to the maximum allowable winding diameter D _MAX is 7.
Although the number of cuts is 5, but the number after the decimal point is rounded down, the operator sets the weaving length of 7 rolls for the cut length of the cross roll 34 in this embodiment.

This "relation between weaving length and cloth winding diameter" means that the paper tube 3
If the diameter of 5 and the cloth thickness of the woven cloth 26 are known, it can be calculated. That is, as shown in FIG. 3A, the cloth thickness is A and the paper tube 3 is
5, the roll diameter of the cross roll 34 is D ₀ , the cloth winding diameter of the current cross roll 34 during weaving is d,
Assuming that the maximum allowable winding diameter of the cloth roll 34 is D _MAX and the current weaving length is l (indicating a lowercase letter of L), (π / 4) · L ² −D ² ₀ ) = l · A (1) d = (D ² ₀ + 4Al / π) ^1/2 (2) Further, A = π (d ² −D ² ₀ ) / (4l) (3) Further, l = π (d ² −D ² ₀ ) / (4A) is expressed as (4), and the "relation between weaving length and cloth winding diameter" is derived from the above equations. Here, when the cloth thickness A is known, the “relation between weaving length and cloth winding diameter” is derived according to the above formula (2). Further, even when the cloth thickness A is unknown, first, the cloth thickness A is obtained according to the above equation (3), and then this is substituted into the above equation (2) to derive the "relation between weaving length and cloth winding diameter". . That is, the cloth roll 3 being woven at a certain point
By measuring the cloth winding diameter d and the weaving length 1 of No. 4 and substituting these into the above formula (3), the cloth thickness A can be obtained, and this cloth thickness A is substituted into the above formula (2). Weaving length-wrapping relationship "is derived. In any case, according to the above equations, the "weaving length-cloth winding diameter relationship" can be derived based on the cloth thickness A. The cut-off length can be set based on Table 40 based on the maximum winding diameter of the cloth roll 34 that can be weaved, and an inverse number of weaving length that does not exceed the maximum winding diameter. The table 40 may be carried by an operator, stuck on the loom, or displayed on a display such as a CRT provided on the loom. Further, in addition to the embodiment shown in FIG. 2, the embodiment shown in Table 40 is such that the numerical values of “relation between weaving length and cloth winding diameter” are arranged in a matrix, and the operator selects and uses a desired combination. good.

It is also possible to derive a "weaving length-cloth winding type relationship" without setting or calculating the cloth thickness A. That is, as shown in FIG. 3 (b), the cloth roll shape of the cloth roll 34 being woven at a certain point of time is D _i , the weaving length at that time is L _i , and then a predetermined length (for example, a predetermined unit length) When the subsequent winding diameter is D _{i + l} , the weaving length at that time is L _{i + l} , the predetermined unit length (length of one roll) is L _k , and the weaving length in the maximum winding shape D _MAX is L _MAX , From the formula (1), (π / 4) · (D ² _{i + 1} −D ² _i ) = L _k · A (5) Therefore, A = π (D ² _{i + 1} −D ² _i ) / (4L _k ) (6) On the other hand, from FIG. 3B, (π / 4) · (D ² _MAX −D ² _{i + 1} ) = A (L _MAX −L _{i + 1} ) (7) The above equation (6) , (7) L _MAX = {(D ² _MAX −D ² _{i + 1} ) / (D ² _{i + 1} −D ² _i )} · L _k + L _{i + 1} (8) Further, D _MAX = {D ² _{i + 1} + (D ² _{i + 1} −D ² _i ) · (L _MAX −L _{i + 1} ) / L _k } ^1/2 (9) Therefore, the winding diameter d at a certain point during weaving and the time Weaving length The relationship between the represented and _{^{d = {D 2 i + 1}} + (D 2 i + 1 -D 2 i) · (l-L i + 1 / Lk} 1/2 (10). Here, L _{i + 1} = L _i + L _k Thus, according to the above formula (10), it is possible to derive the “weaving length-wrapping form relationship” without using the parameter of the fabric thickness A in the formula. In this case, winding diameter D _i , winding diameter D
_{i + 1} and weaving length L _{i + 1} will be measured and these measurements will be used.

Next, a second embodiment of the present invention will be described with reference to FIG.
A description will be given based on FIG. The stock removal length setting device of this embodiment includes a setter 42 for setting a maximum winding diameter D _MAX of the cross roll 34, a setter 43 for setting a known cloth thickness A, and a set maximum. The cloth winding diameter and the cloth thickness are input, and a computing unit 44 that finds a maximum weaving length in a predetermined length unit that does not exceed the maximum winding diameter based on the relationship between the weaving length and the winding diameter according to the above formula (4) and outputs the calculated maximum weaving length And have. Furthermore, the output of the computing unit 44 is input, and the output of the computing unit 44 is also input and the display unit 45 that displays the maximum weaving length of a predetermined length unit (for example, anti-unit) that does not exceed the maximum winding diameter. The weaving length is set as the weaving length of the loom (not shown), and the weaving length is set by the operator's manual operation. Further, there is provided a comparator 47 to which the stock length set by the stock length setting device 46 is input as a reference value, and the detected weaving length detected by a weaving length detector (not shown) is input. Then, the comparator 47 outputs a cross roll replacement command signal to a control device (not shown) when the detected weaving length reaches the set shedding length.

As shown in the flow chart of FIG. 5, the processing of the computing unit 44 is such that the cloth thickness A, the outer diameter D ₀ of the paper tube, and the maximum allowable winding diameter D _MAX of the cross roll are known values. By (4), the weaving length L _MAX corresponding to the maximum winding diameter D _MAX is calculated, and L _MAX is divided by the predetermined unit length (length of one roll) L _K ,
Calculate (L _X ) how many units (how many) L _MAX corresponds to. Then, only the value of the integer part is set as [L _X ], and the maximum weaving length [L _X ] ・ of a predetermined length unit that does not exceed the maximum winding diameter
This is calculated by calculating L _K. Here, when only a single paper tube is used, the paper tube outer diameter D ₀ may be set to a fixed value, and when a plurality of types of paper tubes are used,
A paper tube diameter setting device may be provided to set the paper tube diameter corresponding to each of them.

In the looming length setting device of this embodiment, the maximum weaving length output from the computing unit 44 is displayed on the display unit 45, and the worker can refer to this, for example, the maximum weaving length or the maximum weaving length. A small weaving length can be set as the cut length. Alternatively, the maximum weaving length that is output may be automatically input as it is to the shaving length setting device 46, and this may be automatically set as a reference value to be output to the comparator 47. According to the unwinding length setting method and device of this embodiment, the unwinding length which is less than the maximum winding diameter of the cross roll can be easily and surely set, and efficient winding is possible. Yes, it also contributes to the improvement of weaving efficiency.

Next, the third embodiment of the present invention will be described with reference to FIGS.
This will be described with reference to FIG. Here, the same members as those in the above-described embodiment are designated by the same reference numerals and the description thereof will be omitted. The inventory length setting device of this embodiment is an embodiment in which the cloth thickness of the woven cloth 26 is unknown. Instead of the cloth thickness setting device 43 of the inventory length setting device of the second embodiment, the winding diameter is changed. The detector 51 and the weaving length detector 52 are connected to the calculator 44.
The winding diameter detector 51 is a known contact or non-contact type detector, and the weaving length detector 52 is also a known detector such as a detector for detecting the rotation amount of the winding roller 28. Further, the unwinding length setting device of this embodiment has a comparator 53 to which the output of the maximum winding diameter setting device 42 and the output of the winding diameter detecting device 51 are input, and is detected by the winding diameter detecting device 51. When the winding diameter exceeds the maximum winding diameter, the comparator 53 outputs an alarm signal. This is to cope with damage to the cross roll or the machine when the winding diameter of the cross roll 34 exceeds the allowable maximum winding diameter of the loom and is not replaced due to some abnormality. Note that such a safety circuit including the maximum winding diameter setting device 42, the winding diameter detector 51, and the comparator 53 can be similarly provided in the following embodiments, but the illustration thereof is omitted for convenience. To do.

The arithmetic operation by the arithmetic unit 44 of this embodiment is, for example, as shown in the flowcharts of FIGS. 7, 8 and 9, ST of the flowchart shown in FIG. 5 of the first embodiment.
Immediately after ART, the processing by the subroutine program shown in FIG. 9 is performed. That is, in the case of the one shown in FIG. 7, since the cloth thickness is unknown, a woven cloth having a certain length is woven, and the cloth thickness is obtained from the increase state of the winding diameter of the cross roll at that time to correspond to the maximum winding diameter. The weaving length to be calculated is calculated.
For the cloth thickness A, the cloth winding diameter d of the cloth roll at the time of weaving is detected by the winding diameter detector 52, the value is stored as D _i , and the current weaving length 1 is stored as L _i . afterwards,
The current winding diameter d is detected by the winding diameter detector 51 at the time of weaving for a predetermined unit length (one roll length) L _K , and the winding diameter d at that time is stored as D _{i + 1} . Then, the above formula (6)
The cloth thickness A is calculated by the following formula, and then by the above formula (4),
The weaving length L _MAX corresponding to the maximum winding diameter D _MAX is calculated. The cloth thickness A can be calculated by the above equation (3) instead of the above equation (6). In this case, the winding diameter D _i and the weaving length L _i , or the winding diameter D _{i + l} and the weaving length L _{i + l}
Only one of the measurement data may be used. Also, in the case of those shown in FIG. 8, after the processing of the subroutine shown in FIG. 9, without obtaining the fabric thickness A, the above equation (8), calculates a weaving length L _MAX corresponding to the maximum winding diameter D _MAX Is. Then, after these calculations,
The following processing of the flowchart shown in FIG.

According to the method and apparatus for setting the undressing length of this embodiment, even in the case of the woven cloth whose cloth thickness is unknown, the most suitable undressing length of the woven cloth can be set easily and accurately as in the above-mentioned embodiments. Therefore, it is possible to flexibly deal with various kinds of woven cloths having different cloth thicknesses. Then, this enables efficient winding of the cross roll, which also contributes to improvement of weaving efficiency.

Next, a fourth embodiment of the present invention will be described with reference to FIG.
0 will be described with reference to FIG. Here, the same members as those in the above-described embodiment are designated by the same reference numerals and the description thereof will be omitted. The inventory length setting device of this embodiment, the setting of the inventory length is performed by an eclectic method of manual setting and automatic calculation, and the winding diameter corresponding to the manually set inventory length is determined. It is corrected and output so that the winding diameter becomes a value equal to or smaller than the maximum winding diameter. In addition, this example is for a case where the cloth thickness is known. The inventory length setting device of this embodiment has a setting device 46 for manually setting the inventory length, a setting device 42 for setting the maximum winding diameter of the cross roll, and a cloth thickness as in the second embodiment. A setting device 43 to be set and a calculator for calculating the winding diameter corresponding to the cutting length based on the above formula (2) indicating the relationship between the weaving length and the winding diameter, by inputting the set cutting length and cloth thickness. 44 and. Further, there is provided a comparator 55 that compares the winding diameter obtained by the calculator 44 with the maximum winding diameter set by the maximum winding diameter setting device 42 and outputs a signal indicating the magnitude relationship between the two. This comparator 55
The output of is input to the display unit 45 that displays the weaving length and the winding diameter, and is also input to the computing unit 44. Further, the shaving length set by the shaving length setting device 46 is input to the comparator 47 for comparison with the detected weaving length output from the weaving length detector (not shown), and the detected weaving length is the set shaving length. When it matches with, the cross roll exchange signal is output.

The method for setting the stock removal length of this embodiment is shown in FIG.
As shown in the flowchart of FIG. 1, first, in the arithmetic unit 44, the predetermined flags N and P are set to 0, and the inventory setting unit 46 is set.
The stock removal length L ₀ set by is stored as L _n . The inventory length is set in units of meters, for example, with a predetermined length unit (for example, one roll) as a delimiter. Then, based on the equation (2), and a winding diameter D _n and the maximum winding diameter D _MAX and the level decision by the comparator 55 calculates the winding diameter D _n for L _n, and outputs the comparison result, display 45. Furthermore, the winding diameter D when _n is greater than the maximum winding diameter D _MAX, the flag N = as 1, doffing length L _n of the predetermined unit length than originally doffing length (e.g. first reaction) a short doffing length L _n = L _n -L _k
Then, the process returns to the winding diameter calculation process. When the winding diameter D _n is smaller than the maximum winding diameter D _MAX , the flag P = 1 is set and the inventory length L _n is longer than the initial inventory length by a predetermined unit length L _n = L _n + L _k. Then, the process returns to the winding diameter calculation process. Then, the winding diameter D _n and the maximum winding diameter D _MAX are compared again with respect to the changed stock removal length L _n , and the stock removal length L _n is reduced until the magnitude relationship becomes opposite to the previous magnitude relationship. Or increased,
The winding diameter calculation process is repeatedly executed. In the case where the size relationship is reversed and the winding diameter D _n is larger than the maximum winding diameter D _MAX ,
When the flag P = 1, the maximum weaving length of a predetermined length unit in which the winding diameter D _n does not exceed the maximum winding diameter D _MAX is selected from the calculated respective cutting lengths L _n , and is used as the corrected cutting length. It outputs to the cut-off length setting device 46 and inputs it to the comparator 47. On the contrary, when the winding diameter D _n is smaller than the maximum winding diameter D _MAX and the flag N = 1, the calculated cutting lengths L
_From among _n , the maximum weaving length in a predetermined length unit in which the winding diameter D _n does not exceed the maximum winding diameter D _MAX is selected, and is output to the shaving length setting device 46 as a corrected shaving length, and this is output to the comparator 47. To enter. The comparator 47 outputs a cross roll replacement signal when the detected weaving length matches the set shedding length.

Here, the above calculation is executed for the set weaving length, which is increased or decreased by a predetermined unit length, and is output to the display unit 45. Finally, the inventory length may be set from the inventory length setting device 46.

Next, a fifth embodiment of the present invention will be described with reference to FIG.
It will be described with reference to FIGS. Here, the same members as those in the above-described embodiment are designated by the same reference numerals and the description thereof will be omitted. The inventory length setting device of this embodiment also sets the inventory length by the eclectic method of manual setting / automatic calculation.When the cloth thickness is unknown, the inventory length set manually is set. Corresponding winding diameters are obtained, and thereafter, the winding diameters are corrected and output so that the winding diameter becomes a value equal to or smaller than the maximum winding diameter, as in the fourth embodiment. That is, in the shaving length setting device of this embodiment, instead of the cloth thickness setting device 43 of the shaving length setting device of the fourth embodiment, the outputs of the roll diameter detector 51 and the weaving length detector 52 are arithmetic units. 44 is connected. The winding diameter detector 51 is a known contact or non-contact type detector, and the weaving length detector 52 is also a known detector such as a detector for detecting the rotation amount of the winding roller 28.

The method for setting the stock removal length according to this embodiment is shown in FIG.
13 is changed as shown in the flow chart of FIG. 13, the winding diameter and the weaving length are stored by the subroutine shown in FIG. 9 of the third embodiment, and the cloth thickness A is calculated by the above equation. Obtained by (6) or (3),
Then, the same processing as in the fourth embodiment shown in FIG. 11 is performed,
The maximum weaving length in a predetermined length unit is selected so that the winding diameter D _n does not exceed the maximum winding diameter D _MAX .

Furthermore, another method of setting the stock removal length according to the present embodiment is to carry out the processing between and in the flowchart of FIG.
It is changed as shown in the flow chart of FIG. 14, and the winding diameter and the weaving length are stored by the subroutine shown in FIG. 9 of the third embodiment, and the set cut is performed without obtaining the cloth thickness by the above formula (10). The winding diameter D _n with respect to the wholesale length is obtained, and the same processing as that of the fourth embodiment shown in FIG. 11 is performed below to select the maximum weaving length of a predetermined length unit in which the winding diameter D _n does not exceed the maximum winding diameter D _MAX. To do.

Next, a sixth embodiment of the present invention will be described with reference to FIG.
5 and FIG. 16 will be described. Here, the same members as those in the above-described embodiment are designated by the same reference numerals and the description thereof will be omitted. The inventory length setting device of this embodiment sets the inventory length by a eclectic method of manual setting and automatic calculation.The maximum weaving length corresponding to the maximum winding diameter is obtained, and the inventory length is set. Is corrected and output so that the value becomes less than or equal to the maximum weaving length. Further, in this embodiment, it is assumed that the cloth thickness is known. The inventory length setting device of this embodiment has a setting device 46 for manually setting the inventory length, a setting device 42 for setting the maximum winding diameter of the cross roll, and a cloth thickness as in the fourth embodiment. The setter 43 to be set and the set shaving length and cloth thickness are input, and the weaving length L _MAX corresponding to the maximum winding diameter D _MAX is based on the above formula (4) showing the relationship between the weaving length and the winding diameter. And an arithmetic unit 44 for calculating Further, a comparator 55 is provided which compares the weaving length L _MAX obtained by the arithmetic unit 44 with the weaving length L _n set by the shaving length setting device 46 and outputs a signal indicating the magnitude relationship between the two. There is. The output of the comparator 55 is input to the display unit 45 that displays the weaving length and the winding diameter, and further to the calculator 44. Further, the shaving length set by the shaving length setting device 46 is input to the comparator 47 for comparison with the detected weaving length output from the weaving length detector (not shown), and the detected weaving length is the set shaving length. When it matches with, the cross roll exchange signal is output.

The method for setting the stock removal length of this embodiment is shown in FIG.
As shown in the flowchart of FIG. 1, first, in the arithmetic unit 44, the predetermined flags N and P are set to 0, and the cut-off length setting unit 4 is set.
The inventory length L _O set by 6 is stored as L _n .
The inventory length is set in units of meters, for example, with a predetermined length unit (for example, one roll) as a section. Then, based on the equation (4), calculates the weaving length L _MAX corresponding to the maximum winding diameter D _MAX, the comparator 55 by the doffing length setter 46
Compare the weaving length L _MAX with the weaving length L _n
The comparison result is output from the comparator 55. When the cut length L _n is larger than the weaving length L _MAX , the flag N =
As 1, and the doffing like L _n to the initial short doffing length predetermined unit length only from the doffing length L _n = L _n -L _k, the maximum winding diameter D
_The process returns to the process of calculating the weaving length L _MAX corresponding to _MAX . If the uncut length L _n is smaller than the weaving length L _MAX , the flag P = 1 is set, and the uncut length L _n is longer than the original uncut length by a predetermined unit length L _n = L _n + L _k. Then, the process returns to the process of calculating the weaving length L _MAX corresponding to the maximum winding diameter D _MAX . Then, again for the changed inventory length L _n ,
Comparing the doffing length L _n and weaving length L _MAX, until the magnitude relation is reversed and the magnitude relation of the previous, decreased or increased by the doffing length L _n, the process of calculating the weaving length L _MAX Execute repeatedly. When the size relationship is reversed and the shaving length L _n is larger than the weaving length L _MAX and the flag P = 1, the slicing length L _n is calculated from the calculated respective shaving lengths L _n.
Selects the maximum cutting length in a predetermined length unit smaller than the weaving length L _MAX , outputs it as a corrected cutting length to the cutting length setting device 46, and inputs it to the comparator 47. Further, when the cut length L _n is smaller than the weaving length L _MAX , the flag N =
Also in the case of 1, the maximum weaving length of a predetermined length unit in which the weaving length L _n is smaller than the weaving length L _MAX is selected from the calculated respective unweaving lengths L _n , and the weaving length is set as the corrected weaving length Setting device 4
It outputs to 6 and inputs this to the comparator 47. And
The comparator 47 outputs a cross roll replacement signal when the detected weaving length matches the set shedding length.

Next, a seventh embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIGS. Here, the same members as those in the above-described embodiment are designated by the same reference numerals and the description thereof will be omitted. The slicing length setting device of this embodiment also sets the slicing length by a eclectic method of manual setting / automatic calculation.When the cloth thickness is unknown, the maximum weaving length corresponding to the maximum winding diameter is set. It is calculated and corrected so that the set looming length is a value equal to or less than the above-mentioned maximum weaving length and is output. That is, the slicing length setting device of this embodiment is similar to the slicing length setting device of the fifth embodiment in that the roll diameter detector 51 and the weaving length detector 52 are connected to the calculator 44. is there. The winding diameter detector 51 is a known contact or non-contact type detector, and the weaving length detector 52 is also a known detector such as a detector for detecting the rotation amount of the winding roller 28.

The method for setting the stock removal length of this embodiment is shown in FIG.
As shown in the flow chart of FIG. 16, the process between and in the flow chart of FIG. 16 is changed, and the winding diameter and the weaving length are stored by the subroutine shown in FIG. Obtained by the formula (6) or (3), the same processing as in the sixth embodiment shown in FIG. 16 is performed below to obtain the maximum weaving length corresponding to the maximum winding diameter, and the set cut length is the maximum. Select the maximum weaving length of a predetermined length unit that does not exceed the winding diameter D _MAX .

Furthermore, another method of setting the stock removal length according to this embodiment is to perform the processing between and in the flowchart of FIG.
It may be changed as shown in the flow chart of FIG. 19, and by the subroutine shown in FIG. 9 of the third embodiment,
The winding diameter and the weaving length are stored, the maximum weaving length corresponding to the maximum winding diameter is obtained by the above formula (8), the same processing as in the sixth embodiment shown in FIG. However, the maximum weaving length of a predetermined length unit that does not exceed the maximum winding diameter D _MAX is selected.

Also in this embodiment, the same effects as in the above-mentioned respective embodiments can be obtained, and the optimum cross roll winding diameter can be set reliably and accurately even when the cloth thickness is unknown.

[0031]

Industrial Applicability The inventory length setting device of the present invention is capable of accurately and easily setting an appropriate inventory length without exceeding the maximum winding diameter of the cross roll. Further, even when the cloth thickness is unknown, the cloth thickness can be accurately calculated, and the cloth can be efficiently wound within the maximum winding diameter of the cross roll.

[Brief description of drawings]

FIG. 1 is a schematic explanatory view of a loom provided with a cut length setting device according to a first embodiment of the present invention.

FIG. 2 is a graph showing the relationship between the weaving length and the winding diameter of the cross roll used in this first embodiment.

FIG. 3 is an explanatory view showing the maximum winding diameter of the cross roll used in this first embodiment and the winding diameter during weaving.

FIG. 4 is a block diagram showing a stock removal length setting device according to a second embodiment of the present invention.

FIG. 5 is a flowchart showing the processing contents of the inventory length setting device of the second embodiment.

FIG. 6 is a block diagram showing a stock removal length setting device according to a third embodiment of the present invention.

FIG. 7 is a flowchart showing the processing contents of the inventory length setting device of the third embodiment.

FIG. 8 is a flowchart showing another processing content of the stock removal length setting device of the third embodiment.

FIG. 9 is a flowchart showing a subroutine program of the inventory length setting device of the third embodiment.

FIG. 10 is a block diagram showing an inventory length setting device according to a fourth embodiment of the present invention.

FIG. 11 is a flowchart showing the processing contents of the inventory length setting device of the fourth embodiment.

FIG. 12 is a block diagram showing an inventory length setting device of a fifth embodiment of the present invention.

FIG. 13 is a flowchart showing the processing contents of the inventory length setting device of the fifth embodiment.

FIG. 14 is a flowchart showing another processing content of the stock removal length setting device of the fifth embodiment.

FIG. 15 is a block diagram showing an inventory length setting device according to a sixth embodiment of the present invention.

FIG. 16 is a flowchart showing the processing contents of the inventory length setting device of the sixth embodiment.

FIG. 17 is a block diagram showing an inventory length setting device of a seventh embodiment of the present invention.

FIG. 18 is a flowchart showing the processing contents of the inventory length setting device of the seventh embodiment.

FIG. 19 is a flowchart showing another processing content of the stock removal length setting device of the seventh embodiment.

[Explanation of symbols]

 26 Woven fabric 34 Cross roll 35 Paper tube 40 Table

Claims (4)

[Claims] 1. A table showing a relationship between a weaving length and a winding diameter of a woven fabric, which is calculated based on a cloth thickness and a roll diameter of a cross roll in setting a cut length, is provided. A weaving length setting method for a loom, wherein a weaving length that does not exceed the maximum winding diameter allowed for the cross roll is set as the weaving length. 2. A predetermined relationship between the weaving length and the winding diameter based on the winding diameter of the cross roll at a certain measurement start time, the winding diameter of the cross roll at a subsequent measurement end time, and the weaving length between these two time points. And a weaving length that does not exceed the maximum winding diameter allowed for the cross roll is set as the weaving length based on this. 3. A weaving length and a winding diameter by inputting a setting device for setting the maximum winding diameter of the cross roll, a setting device for setting the cloth thickness, and the maximum cloth winding diameter and the cloth thickness set by the respective setting devices. And an arithmetic unit for calculating a maximum weaving length in units of a predetermined length that does not exceed the maximum winding diameter based on a predetermined relationship with and outputting the maximum weaving length. 4. A setting device for setting the maximum winding diameter of the cross roll, a winding diameter detector for detecting the winding diameter of the cross roll, and a weaving length detector for detecting the weaving length. The winding diameter at, the winding diameter at the end of the subsequent measurement, the weaving length between both time points, and the maximum winding diameter set by the setting device are input, and based on a predetermined relationship between the weaving length and the winding diameter. And an arithmetic unit for calculating and outputting a maximum weaving length in a predetermined length unit that does not exceed the maximum winding diameter.