Weft insertion control method and weft insertion control device for water jet loom
A control method, water jetting technology, applied in looms, textiles, textiles and papermaking, etc., can solve problems such as expensive encoders, reduced fabric quality, and increased device costs
Active Publication Date: 2017-12-12
TSUDAKOMA KOGYO KK
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- Application Information
AI Technical Summary
Problems solved by technology
As a result, proper weft insertion is not performed, and the quality of the fabric deteriorates.
[0017] It should be noted that in order to eliminate such a problem, it is considered to use an encoder with a high resolution, but such an encoder is relatively expensive, resulting in an increase in the cost of the device
Method used
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Experimental program
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Embodiment Construction
[0038] figure 1 Shown is an example of a weft insertion device 1 in a water jet loom to which the present invention is applied. .
[0039] The weft insertion nozzle 2 is provided near the cloth fell 12 so as to be supported by a frame (not shown) of the water jet loom. In addition, the weft insertion nozzle 2 is connected to the pump 23 through the water guide pipe 21, and this pump 23 is connected to the water supply tank 24 through the other water guide pipe 22.
[0040] The pump 23 repeats a suction stroke and a discharge stroke following the suction stroke every weaving cycle of the loom, sucks in water from the water supply tank 24, and discharges it while compressing the water. Then, by starting the discharge stroke of the pump 23 at a predetermined timing in one weaving cycle, the injection of the pressurized water from the weft insertion nozzle 2 is started at a predetermined injection start timing. Among them, in a general water jet loom, the above-mentioned operat...
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The invention discloses a wefting insertion control method for a water jet-type loom and a wefting insertion control device. According to the method, the water jet-type loom comprises a weft storage device used for blocking a weft through a blocking pin so as to store the weft in a storage drum and releasing the blocking of the blocking pin on the weft according to a preset unlocking time value for releasing the blocking; a reelability sensor used for detecting the reelability weft in the storage drum; and a gripper arranged between a weft nozzle and the weft storage device and used for releasing the weft at the preset unlocking time value for releasing the blocking. Through comparing a detection value of a signal detected by the reelability sensor with a reference value related to a reelability time value, the deviation is figured out. Meanwhile, the preset unlocking time value for releasing the blocking and the opening time are modified alternately by means of a correction model calculated based on the deviation and a correction amount figured out based on the deviation.
Description
technical field [0001] The present invention relates to a weft insertion control method and a weft insertion control device based on a water-jet loom as a premise device. on the storage drum, and release the locking of the locking pin to the weft according to the set value of the preset locking release timing; the unwinding sensor, which is activated when the locking of the locking pin to the weft is released When weft insertion is performed in the released state, the weft thread unwound from the storage drum is detected; and the gripper is arranged between the weft insertion nozzle and the weft thread storage device and holds the weft thread, and The set value of the set opening timing opens said gripping of the weft thread. Background technique [0002] Generally, the weft insertion of the water jet loom starts at the timing of unlocking the locking pin and the opening timing of the gripper, which are set in accordance with the timing of jetting the pressurized water jett...
Claims
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IPC IPC(8): D03D47/32
CPCD03D47/32
Inventor 田中邦弘松本聪高野美千代志武丰
Owner TSUDAKOMA KOGYO KK