JP2875266B2 - Adjustment display method of fluid jet loom - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a method of adjusting a fluid injection loom by adjusting a set value of an object to be controlled and a measured value of an operation state of the fluid injection loom by the object to be rotated. The present invention relates to a method of simultaneously displaying corners and visually confirming an adjustment direction and an adjustment state of the set value.

[Conventional technology]

In the stage of adjusting the set value of the controlled object, which is performed when the weaving conditions are changed, when the loom is delivered, or when the actual measured value of the operating state deviates from the target value outside the allowable range during weaving, the operating state of the loom In order to change the set value so as to approach the target value, an operation of actually measuring the operation state and changing the set value is required. In this process, if the operator checks the measured value of the operating state of the loom on one display screen, then compares it with the set value on another screen, and changes the set value in the target direction, an input error may occur. Or a delay due to the passage of time occurs, and fine adjustment cannot be performed properly.

In particular, in a weft insertion device of a fluid jet loom, since the weft yarn is performed by the cooperative operation of a locking pin, a main nozzle, and a sub-nozzle that constitute the weft insertion device, each weft insertion means is finely adjusted. Is required. Nevertheless, when adjusting the set value of the weft insertion device, appropriate fine adjustment cannot be performed if the set value is changed while switching the screen of the display unit and checking the arrival timing as the actually measured value.

[Object of the invention]

Accordingly, an object of the present invention is to provide a weft insertion device with a locking pin and a weft insertion nozzle (a main nozzle and a sub-nozzle) during the adjustment process of the weft insertion device.
It is an object of the present invention to immediately visually confirm the operation timing and the arrival timing of the weft yarn at the operation timing, and to easily perform the adjustment.

[Solution of the Invention]

According to the present invention, in the process of adjusting the operation timing of the locking pin and the weft insertion nozzle, the operation timing and the weft arrival timing at this operation timing are set on the same screen by the rotation angle of the main shaft. Are displayed at the same time, and while checking them, the operation timing of the weft insertion device is changed so that the arrival timing of the weft yarn approaches the target state.

Specifically, the adjustment display method of the fluid jet loom of the present invention sets the operation timing of the advancement / retraction of the locking pin and the injection of the weft insertion nozzle by the rotation angle of the main shaft,
In the fluid jet loom that operates the locking pin and the weft insertion nozzle at the set operation timing and unwinds the weft from the length measuring storage device and inserts it into the warp yarn opening, the locking pin is retracted and In the process of manually adjusting the injection timing of the weft insertion nozzle through the setting input device, the weft insertion is performed under the set retracting timing of the locking pin and the injection timing of the weft insertion nozzle. The set arrival timing of the weft yarn is actually measured as the rotation angle of the main shaft, and the set values of the retreat timing and the injection timing and the measured value of the arrival timing are simultaneously displayed.

[Control system configuration]

FIG. 1 shows the relationship with the fluid jet loom 1 to be controlled.
3 shows a configuration of a control system.

The control data for the fluid jet loom 1 is input by the setting input device 2 and sent to the main control device 3 via the communication cable 4. This setting input device 2 has a built-in display unit 5 and, based on a display program,
In addition to displaying control items input by the plurality of function keys 6, set values input by the numeric keys 7, target values, and the like, the control items are sent to the main controller 3 during operation of the fluid jet loom 1. Displays the actual measured value of the control state. The setting input device 2 incorporates a card reader 9 as necessary. For this reason, a specific part of the control data can be input by the memory card 8. These control data can be input only when the main key 10 of the setting input device 2 is inserted into the keyhole and turned on. Thereby, the data inside the main control device 3 is protected. The display unit 5 displays a symbol indicating a blank space for the number of digits of the set value, where the set value to be input is displayed.
This can prevent an input error of more digits than necessary. Further, since the digit portion being input is displayed by blinking or half-cursor of the cursor, the operator can easily confirm the position to be input.

Then, the main controller 3 is connected via the communication line 11,
The sequence control unit 13 of the driving motor 12, the timing control unit 15 of the weft insertion device 14, and the delivery control unit 17 of the delivery device 16 are bidirectionally connected.

The sequence control unit 13 controls the rotation direction and the rotation amount of the driving motor 12 in a preset sequence based on commands from the operation / stop / inching command switches 18 and the like. By driving the main shaft 19, the punching device 20 and the opening device 21 interlocked therewith.
And the winding device 22 and the like are driven.

Further, the timing control unit 15 compares the control data with the rotation angle of the main shaft 19 detected by the encoder 23 based on the control data set in advance, and locks the length measurement storage device 24 at the set timing. The forward / backward movement of the pin 25, the open / close state of the solenoid valve 27 of the main nozzle 26 for weft insertion, and the solenoid valve 29 of the sub-nozzle 28 for weft insertion are controlled.
The arrival timing of the weft yarn 30 is actually measured by the weft yarn feeler 33 on the opposite weft insertion side.

Further, the feed control unit 17 measures the actual tension value of the warp yarn 31 by the tension sensor 32, and drives the feed device 16 so that the tension becomes a target tension value set by the control data.

[Loom adjustment display method]

The adjustment display method for the loom of the present invention is executed in the course of the adjustment program shown in FIG.

When the operator operates the function key 6 for adjusting the fluid jet loom 1, the main controller 3 starts the adjustment program shown in FIG. Here, when the operator designates the adjustment of the weft insertion device 14 which influences the arrival timing, the adjustment of the feed control, and the like by using the function key 6, this adjustment program executes the weft insertion device 14 which influences the arrival timing based on each designation. Move to the program for adjusting the feed or adjusting the feed control. However, if the operator presses the adjustment-completed function key 6 after these adjustments, the adjustment program ends.

FIG. 3 shows a program for adjusting the arrival timing.

After the arrival timing adjustment is started, main controller 3
The set value of the operation timing of the weft insertion device 14 that determines the arrival timing from the storage address of the timing control unit 15, the weft insertion state based on this set value, that is, an actually measured value of the timing at which the weft yarn arrives, and as necessary. The target value of the timing at which the weft arrives and the difference between the target value and the actually measured value, that is, the deviation, are read, and these are always displayed on the same screen, for example, as shown in FIG. indicate. Here, the set values are the ejection timing of the main nozzle 26 and the sub nozzle 28 and the weft unwinding timing of the locking pin 25. The ejection timing is the operation timing of the weft insertion nozzle, and specifically indicates the injection start timing or the injection end timing. Further, the weft unwinding timing is the operation timing of the locking pin 25, and the unwinding start (retraction of the locking pin) timing or the unwinding end (the advancement of the locking pin).
Shows timing. These set values are given as rotation angles of the main shaft 19, that is, angle values from 0 degrees to 360.

Next, the calculation unit of the main control device 3 calculates (target value−actual measurement value)
By the calculation formula, the deviation is obtained by calculation, and it is determined whether or not the obtained deviation is within an allowable range. When the deviation is out of the range, a warning is issued. For example, a warning lamp is turned on at the display unit 5 or Or issue an alarm. Thereafter, the operator determines the correction direction of the set value while checking the display contents of the display unit 5, that is, the set value, the target value, the measured value, and the deviation value, and the measured value, that is, the arrival timing matches the target value. The adjustment operation is performed by gradually changing the set value up to. As long as the operator does not press the function key 6 for completing the adjustment operation, the program of the arrival timing repeats the above skip by a loop. In such an adjustment process, the fact that the set value of the weft insertion device 14 is adjusted so that the actually measured value matches the target value means that the timing of the weft insertion device 14, that is, the main nozzle 26, the sub nozzle 28, and the This means that the timing of the stop pin 25 is set to an optimal state. At this point, if the operator presses the adjustment-completed function key 6, the program for adjusting the arrival timing returns.
It returns to the adjustment program of FIG.

The same steps as described above are repeated in the adjustment of the feed control. In response to this, the display unit 5 displays a set value related to the feed control, for example, the amplification factor of the feedback amount of the actual tension which determines the rotation amount of the feed motor for the appropriate control for the tension control, and the actual measurement of the warp yarn tension. In addition to the values, the target value and deviation of the warp yarn tension are displayed on the display unit 5 as necessary.

[Other embodiments]

In the above embodiment, the set value, the measured value, and the target value are displayed at the start of the adjustment. However, if it is considered that the adjustment of the set value is performed only when the measured value is out of the allowable range from the target value, these display steps are performed only when the deviation greatly deviates from the allowable range, that is, when the deviation is within the allowable range. ? May be executed after the determination is made.

In the above embodiment, the operator adjusts the set value by predicting all adjustment amounts of the set value for matching the measured value to the target value. However, this adjustment amount can also be automatically calculated roughly by interpolation or the like. For example, when the measured value deviates from the target value by a predetermined value, main controller 3 obtains an optimal set value by interpolation calculation,
At this time, for the first time, the display unit simultaneously displays the actually measured values, the optimal set values, and the like. After that, the operator changes the set value to the calculated optimum set value, further looks at the actual measured value at that time, and corrects the changed set value so that it matches the target value, thereby further improving the optimum set value. Setting values can be obtained. According to this, the setting of the optimum value can be performed more appropriately and promptly.

Further, the display screen of the display unit 5 is not limited to one, and may be divided into a plurality as long as it can be displayed simultaneously. Also, "simultaneous" here means within a small time,
This includes the degree of being displayed before and after in time.

〔The invention's effect〕

In the present invention, in the process of adjusting the weft insertion device of the fluid jet loom, the operation timing of the weft insertion device and the arrival timing of the weft inserted by the operation timing can be simultaneously checked, and the direction and the amount of adjustment to be adjusted Can be checked instantaneously, so that the operation timing can be changed and finely adjusted easily, quickly and appropriately.

In particular, the weft unwinding timing, the weft insertion nozzle ejection timing, and the weft arrival timing are all displayed as the rotation angle of the main shaft, and these are displayed at the same time. Since it is absolutely related to the movement and can be directly compared with the rotation angle of the main shaft, the adjustment work for weft insertion is much easier and easier to work than the conventional one. Get better.

[Brief description of the drawings]

FIG. 1 is a block diagram of a control system of a fluid injection loom, and FIG.
FIG. 3 is a flowchart of an adjustment program, FIG. 3 is a flowchart of a subroutine at the time of arrival timing adjustment,
FIG. 4 is a front view of the display screen. DESCRIPTION OF SYMBOLS 1 ... Fluid injection type loom, 2 ... Setting input device, 3 ... Main control device, 5 ... Display unit, 6 ... Function keys, 7 ... Numeric keys, 13 ... Sequence control part, 14 ...
… Horizontal insertion device, 15… timing control unit, 16… delivery device, 17… delivery control unit.

Claims (1)

(57) [Claims] An operation timing of advancing and retreating a locking pin and injection of a weft insertion nozzle is set by a rotation angle of a main shaft, and the locking pin and a weft insertion nozzle are operated at the set operation timing to perform measurement. In a fluid ejection loom in which a weft is unwound from a long storage device and inserted into a warp opening, in a process of manually adjusting a retreat timing of a locking pin and an ejection timing of a weft insertion nozzle through a setting input device. The weft insertion is performed under the set retraction timing of the locking pin and the injection timing of the weft insertion nozzle, and the arrival timing of the weft inserted weft is measured as the rotation angle of the main shaft, and the retreat timing and The set value of the injection timing on the main shaft rotation angle and the measured value of the arrival timing on the main shaft rotation angle should be displayed simultaneously. And an adjustment display method for a fluid jet loom.