JP2804345B2 - Loom control method and device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a method and an apparatus for controlling a loom to weave a plurality of types of woven fabrics.

(Prior art) Weaving data such as the number of rotations of the main shaft, the number of drivings, the warp tension, the shedding pattern, the weft insertion injection pressure, the injection angle
Generally, each time the weaving of one type of woven fabric is completed, it is set in a storage circuit of a control device provided for each loom. In a loom group management system in which a plurality of looms are connected to a central processing unit and each loom is managed by the central processing unit, weaving data is transmitted from the central processing unit to a terminal provided for each loom. .

In this type of group management system, a warp-out signal indicating that the weaving of a predetermined woven fabric has been completed is supplied from the loom to the central processing unit, so that the terminal of the loom is used for the next woven fabric. A method has been proposed in which weaving data is supplied from a central processing unit, the data of the terminal device is updated to new weaving data, and then the loom is controlled based on the new weaving data (Japanese Patent Laid-Open Publication No. Sho. No. 61-138748).

In addition, the weft insertion pattern is divided into main step data and a plurality of sub-step data and stored in the storage circuit, and when the same pattern is repeated, the sub-step pattern is selected and read out, and the desired weft insertion pattern is read. A control method for weaving has been proposed (JP-A-58-1042).
No. 48). In this control method, each data is transmitted from the central processing unit to a predetermined terminal.

(Problem to be solved) However, since updating of weaving data requires a certain amount of time, in the former control method, the loom must be stopped while updating the weaving data. The rate is reduced, and the weaving steps resulting from stopping the loom are formed in the woven fabric.

In the latter control method, a large-capacity storage circuit is required because all the data scheduled in advance must be stored in the terminal device.

An object of the present invention is to enable weaving data to be updated by a small-capacity storage circuit without stopping the loom.

(Solution, operation and effect) A method for controlling a loom according to the present invention provides a method for controlling a loom based on weaving data stored in one of two storage units storing weaving data while controlling the other. And storing the weaving data to be used for the next weaving in the storage unit.

A control device for a loom of the present invention includes a storage circuit having two storage units for storing weaving data, and selectively reads the weaving data stored in the storage unit, and based on the read-out weaving data. And a control circuit for controlling the loom.
The control circuit reads the weaving data stored in one storage unit and controls the loom, and stores the weaving data to be used for the next weaving in the other storage unit.

The loom is controlled based on the weaving data stored in one storage unit, and new weaving data is stored in the other storage unit during that time.

When weaving using the weaving data stored in one storage unit is completed, the loom is controlled based on the weaving data stored in the other storage unit. At this time, weaving data stored in one storage unit may or may not be updated.

According to the present invention, weaving data can be updated without stopping the loom, so that the operation rate of the loom can be improved, and weaving steps caused by stopping the loom can be prevented beforehand. . Further, since it is sufficient to provide at least two storage units, the capacity of the storage circuit may be small.

(Embodiment) Referring to FIG. 1, a group management system 10 manages a plurality of looms 12 in a centralized manner by a central processing unit 14 and a terminal 16 provided for each of the looms 12.

The central processing unit 14 includes a setting unit 18 for setting various data.
A storage circuit 20 storing various weaving data, a storage circuit 22 for storing various data transmitted from the terminal device 16, and a control unit connected to the setting unit 18 and the storage circuits 20 and 22. It includes a circuit 24 and a multiplexer 26 that connects the control circuit 24 to the terminal 16.

The control circuit 24 reads and writes weaving data to and from the storage circuit 20, reads and writes various weaving data to and from the storage circuit 22, and transmits and receives various data and commands between the central processing unit 14 and the terminal 16. And so on.

As shown in FIG. 2, each terminal 16 comprises an electronic dobby device capable of electrically changing weaving data such as an opening pattern. Each terminal device 16 includes a pair of proximity switches 30, 32.
including. Each of the proximity switches 30 and 32 supplies a pulse signal to the stepping signal generation circuit 36 every time the main shaft 43 of the corresponding loom makes one rotation.

Each time both pulse signals are supplied from both the proximity switches 30 and 32, the step signal generation circuit 36 determines the rotation direction of the main shaft 34 based on the phase difference between the two pulse signals, and determines the pulse signal in accordance with the rotation direction. Sp1 or Sp2 is supplied to the counter 38.

The count value of the counter 38 is stored in a control circuit 40 by storing predetermined weaving data in a storage circuit 42 in which the data is stored.
Is used as a signal for reading from a predetermined storage unit. The counter 38 is cleared by the control circuit 40 each time the count value becomes a predetermined value, for example, the same value as the number of steps of one repeat of the opening pattern.

The weaving data read by the control circuit 40 is stored in the drive circuit.
The drive circuit 44 supplies the drive circuit with signals for controlling a plurality of heald frames of the corresponding loom 12 in the drive circuit.

The control circuit 40 has a terminal 46 for transmitting and receiving data and commands to and from the central processing unit 14.

As shown in FIG. 3, the storage circuit 42 has first and second storage sections 48 and 50 for weaving data, and the control circuit 40 stores the weaving data to be read. A switching circuit 52 is provided for switching between a storage unit in which a new weaving data is stored and a storage unit in which new weaving data is to be written.

 Next, the operation of the terminal 16 will be described with reference to FIG.

In the following description, m and n are variables on software, respectively, and the following symbols A and B are substituted.

A and B are the storage units 48 of the corresponding terminals, respectively.
And 50 are symbols indicating that the data is for weaving stored in 50. That is, the storage unit 48 stores the weaving data A
However, the storage unit 50 stores the weaving data B.
Hereinafter, the weaving data stored in the storage unit 48 and 50,
They are simply referred to as data A and data B, respectively.

The instruction including the variables m and n in the flowchart is executed in place of the set symbol A or B.

When the weaving command is input, the terminal device 16 first connects the storage unit 48 to the readout terminal of the switching circuit 52, and performs initial processing for setting the symbols A and B to the variables m and n on the software, respectively. And an initial process for connecting the storage unit 50 to the write terminal of the switching circuit 52 (step 10).
1) Thereby, the symbol A is set to the variable m on the software (m ← A), and the symbol B is set to the variable n (n ← B).
The storage unit 48 is connected to a read terminal of the switching circuit 52, and the storage unit 50 is connected to a write terminal of the switching circuit 52.

Next, the terminal device 16 confirms whether or not the registration of the data n has been completed (step 102). At this time, since the symbol B is set to the variable n on the software by the initial processing of step 101, the terminal device 16 determines whether the registration of the new data n, that is, the data B in the storage unit 50 has been completed. Check if. However, if the symbol A is set to the variable n on the software, the terminal 16 confirms whether the registration of the new data n, that is, the data A in the storage unit 48 has been completed.

The confirmation in step 102 can be performed by confirming whether the registration completion flag of data A or B is on or off.

Now, when the registration completion flag of data n, that is, data B is turned on and the registration of new data B is completed, the terminal device 16 stores the data used for actual weaving in the storage unit. Generates a data switching command for switching between the storage unit for storing new data (step 10).
3).

As a result of step 103, the storage unit 50 in which data B is already stored is connected to the read terminal of the switching circuit 52, and the storage unit 48 for storing data A is connected to the writing terminal of the switching circuit 52.

Next, the terminal 16 checks whether or not the symbol A is set to the variable m on the software (step 104). At this point, the symbol A is set to the variable m in the initial processing of step 101, so that the terminal 16
Next, symbols B and A are set for variables m and n on the software, respectively (step 105).

In step 105, the software is set so that the data B stored in the storage unit 50 is the data to be used for actual weaving, and the new data A is written to the storage unit 48.

Conversely, if m ≠ A as a result of step 104, terminal 1
Step 6 sets symbols A and B for variables m and n on the software, respectively (step 106). Thus, the software is set so that the data A stored in the storage unit 48 is the data to be used for actual weaving, and the new data B is written in the storage unit 50.

Next, the terminal device 16 controls the loom based on the data m, that is, the data B (step 107). As a result, weaving based on the weaving data B stored in the storage unit 50 is performed. Conversely, when step 106 is executed, weaving is performed using the weaving data A stored in the storage unit 48.

Next, the terminal device 16 determines whether or not the length of the downwind beam has been reached, that is, whether or not the length of the cloth-wrapped beam has been reached, and based on the data B until the length of the downwind beam is reached. The loom is controlled (step 108).

When the machine-down length has been reached, the terminal 16 issues a machine-down command (step 109), and then determines whether the machine-up length has been reached, that is, whether the warp beam has been replaced. It is confirmed whether or not it is (step 110).

If the aircraft length has not been reached, the terminal 16
Is to be changed (step 111). As a result, if it should not be changed, the terminal 16 repeats steps 107 to 111 until the woven fabric based on the data B reaches a predetermined length.

However, if the data should be changed, the terminal 16
A flag corresponding to the completion of registration of data m, that is, data B is turned on (step 112).

Thereafter, in step 110, the terminal device 16 repeats steps 102 to 112 until the aircraft reaches the lift length.

In step 110, if the aircraft has reached the lift length,
The terminal device 16 stops the loom and outputs a hoisting command (step 113).

In steps 105 and 106, the result of the check in step 104 is such that m = A and m ≠ A every time the control loop makes one cycle.
Are alternately executed, so that they are executed alternately.

The writing of new data to the storage circuit 42 is started after the terminal device 16 executes a predetermined initial process (step 114) in the control routine of the data registration control.

Upon completion of the initial processing, the terminal device 16 confirms that the registration completion flag of the data n corresponding to the variable n on the software is off (step 115), and issues a request for transferring new data to the central processing unit 14. Output (step 116), receive the new data to be transferred (step 117),
The received new data is output to the storage unit 48 or 50 in which the data n is stored (step 118), and then the registration completion flag of the data n is turned on (step 115).

Here, if A is set to the variable n, for example, the terminal 16 confirms that the registration completion flag of the data A is off (step 115), and transmits the new data A from the central processing unit 14. Is output to the storage unit 48 in which the data A is stored (step 118), and the registration completion flag of the data A is turned on (step 119). Conversely, if the symbol B is set to the variable n, the terminal 16 confirms that the registration completion flag of the data B is off (step 115), and the new data from the central processing unit 14 A is output to the storage unit 48 in which the data B is stored (step 118), and the registration completion flag of the data B is turned on (step 119). Thereby, the data in the storage unit 48 or 50 is updated.

Thus, steps 116 to 119 are executed after confirming in step 115 that the registration completion flag of data n has been turned off. The time when the registration completion flag of the data n is set to OFF is after the step 105 or 106 is executed, and thereafter, the steps 116 to 119 are executed.

That is, if it is assumed that m ← B and n ← A are set, first, at step 112, the registration completion flag of data m, that is, data B, is turned on. At this time, the symbol A is set to the variable n, and the data n, that is, the registration completion flag of the data A is off. Therefore, the software is in a state of waiting for the registration completion flag of data A to be turned off in step 115. Thereafter, in step 106, the setting is changed to m ← A and n ← B, and at the same time, the registration completion flag of data n is changed to data B
Means the registration completion flag. Since the registration completion flag of data B has been turned off in step 112 first, steps 116 to 119 are executed at this point.

By repeating steps 102 to 112 and steps 115 to 119, a plurality of types of woven fabrics are woven sequentially or alternately. Steps 108 to 110 may be performed between steps 112 and 102.

In the storage circuit 42 shown in FIG. 3, only the data in one storage unit may be updated and the data in the other storage unit may not be updated.

FIG. 5 shows a flowchart of the terminal 16 when the data stored in the storage unit 50 in the storage circuit 42 in FIG. 3 is not updated.

In the following description, m, n, A, B, m ← A, m ← B, n ← A, n
← B are the same as those in FIG.

When the weaving command is input, the terminal device 16 first performs initial processing for setting the symbols A and B to the variables m and n on the software, and the storage unit 48 in which the data is updated is read out by the switching circuit 52. And an initial process of connecting the storage unit 50 whose data is not updated to the write terminal of the switching circuit 52 (step 201).

As a result, the symbol A is set to the variable m on the software (m ← A), and the symbol B is set to the variable n (n ← B).
The storage unit 48 is connected to a read terminal of the switching circuit 52, and the storage unit 50 is connected to a write terminal of the switching circuit 52. However, in this embodiment, data is not actually written because the data in the storage unit 50 is not updated.

Next, the terminal device 16 includes a storage unit in which data is updated,
A data switching command for switching between a storage unit whose data is not updated is generated (step 202).

As a result of step 202, storage unit 50 is connected to the read terminal of switch circuit 52, and storage unit 48 is connected to the write terminal of switch circuit 52.

Next, the terminal device 16 checks whether or not the symbol A is set to the variable m on the software (step 203). At this point, since the symbol A is set to the variable m in the initial processing of step 201, the terminal 16
Next, symbols B and A are set for variables m and n on the software, respectively (step 204).

In step 204, the software is set so that the data B stored in the storage unit 50 is the data to be used for actual weaving, and the data stored in the storage unit 48 is not used.

If m の A as a result of step 203, the terminal 16
Symbols A and B are set for variables m and n on the software, respectively (step 205). Thus, the software is set so that the data A stored in the storage unit 48 is used as the weaving data to be used for actual weaving, and the data stored in the storage unit 50 is not used.

Next, the terminal device 16 controls the loom based on the data m, that is, the data B (step 206). As a result, weaving based on the weaving data B stored in the storage unit 50 is performed. Conversely, when step 205 is executed, weaving is performed using the weaving data A stored in the storage unit 48.

Next, the terminal 16 determines whether or not the machine has reached the machine-down length, and controls the loom based on the data B until the machine reaches the machine-down length (step 207).

When the length of the machine has been reached, the terminal 16 issues a machine-down command (step 208), and then confirms whether the machine has reached the machine-initiated length (step 209).

If the aircraft length has not been reached, the terminal 16
Is to be changed (step 210).

If the result of step 210 is that it should not be changed, the terminal 16 repeats steps 206 to 210 until the woven fabric according to data B has reached a predetermined length.

However, if the data should be changed, the terminal 16
It is confirmed whether or not the symbol A is set in the variable m on the software (step 211).

As a result of step 211, if the symbol A is set to the variable m on the software, the terminal 16 turns off the registration completion flag of the data m, that is, the data A (step 212). However, if the symbol A is not set in the variable m on the software, the terminal 16 waits until new data n, that is, data A, is stored in the storage unit 48 (step 213).

After step 212 or 213, the terminal 16 returns to step 20
Steps 202 to 213 until the lift length is reached in 9
repeat.

In step 209, if the aircraft has reached the lift length,
The terminal device 16 stops the loom and outputs a hoisting command (step 214).

Steps 204 and 205 and steps 212 and 213 are executed alternately because the check results in steps 203 and 211 alternately repeat m = A and m ≠ A each time the control loop makes one cycle. You.

The writing of new data to the storage circuit 42 is started after the terminal device 16 executes a predetermined initial process (step 215) in the control routine of the data registration control.

When the initial processing is completed, the terminal device 16 confirms that the symbol B is not set in the variable n on the software, that is, that the storage unit 48 for updating the data A is not currently used for weaving. (Step 216), it is confirmed that the registration of the new data n in the storage unit 48, that is, the registration of the data A is not completed (Step 217), and a transfer request of the new data is output to the central processing unit 14 (Step 216). 218) and receive the new data to be transferred (step 219),
The received new data is output to the storage unit 48 (step 22
0), and then turns on the registration completion flag of data n, that is, data A (step 221).

If the symbol B is set in the variable in step 216, the process does not proceed to the following steps, but the variable n
Is waiting for the symbol A to be set. The existence of the step 216 prevents the data B in the storage unit 50 from being updated when the storage unit 50 is not used for weaving.

As described above, in Steps 218 to 221, it is confirmed that the symbol A is set to the variable n (Step 216) and that the registration completion flag of the data n, that is, the data A is turned off (Step 217). Will be executed later. The time at which the registration completion flag of the data n is set to OFF is after step 204 has been executed.
18 to 221 will be executed.

That is, assuming now that step 205 is executed,
It is assumed that m ← A and n ← B are set. At this time, first, in step 202, data m, that is, data A
Is turned off. Since the symbol B is set for the variable n, the step 216 maintains the standby state. Then, in step 204, m ← B,
When the setting is changed to n ← A, the control routine of the data registration control exits the standby state of step 216 and proceeds to step 217. At the same time, the data registration completion flag means a registration completion flag of data A. Since the registration completion flag of data A has been turned off in step 212 first, steps 218 to 221 are executed at this point.

In the storage circuit 42 shown in FIG. 3, it is not necessary to always update the data in the storage units 48 and 50 alternately. For example, the number of updates of the data in both storage units during a certain period may be different values. Updating of the data in the storage units 48 and 50 may be performed by exchanging a magnetic card or the like storing predetermined weaving data.

[Brief description of the drawings]

FIG. 1 is a block diagram showing one embodiment of a group management system using a control device of the present invention, FIG. 2 is a block diagram of an electric circuit showing one embodiment of a control device of the present invention, and FIG. FIG. 4 is a block diagram showing an embodiment of the circuit, FIG. 4 is a diagram showing a flowchart for explaining an embodiment of the operation of the control device of FIG. 2, and FIG. 5 is another operation of the control device of FIG. FIG. 6 is a diagram showing a flowchart for explaining the embodiment. 10: Loom group management system, 12: Loom, 14: Central control device, 16: Terminal (control device), 42: Storage circuit, 48, 50: Storage unit.

Continuation of the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) D03D 51/00 D05B 19/00 D04B 15/78 301

Claims (2)

(57) [Claims] 1. A weaving unit for controlling the loom based on the weaving data stored in one of two storage units for storing the weaving data while the other storage unit is used for the next weaving operation. A method for controlling a loom, comprising storing application data. 2. A storage circuit having two storage sections for storing weaving data, and selectively reading the weaving data stored in the storage section, and controlling the loom based on the read-out weaving data. And a control circuit, wherein the control circuit comprises:
A control device for a weaving machine that reads out the weaving data stored in one storage unit and controls the loom while storing the weaving data to be used for the next weaving in the other storage unit.