摘要:
A loom stores stoppage information including a step number each time the loom stops due to a weaving failure during a weaving operation, and displays an aggregation result on a display device (4) as operational information in response to a display request. The aggregation result is obtained by aggregating the stoppage information stored in a period before the time of issuance of the display request. The number of stoppages of the loom is aggregated for each of the step numbers to obtain aggregation results for the respective step numbers, and the aggregation results are displayed on the display device (4) in association with the respective step numbers.
摘要:
A loom stores stoppage information including a step number each time the loom stops due to a weaving failure during a weaving operation, and displays an aggregation result on a display device (4) as operational information in response to a display request. The aggregation result is obtained by aggregating the stoppage information stored in a period before the time of issuance of the display request. The number of stoppages of the loom is aggregated for each of the step numbers to obtain aggregation results for the respective step numbers, and the aggregation results are displayed on the display device (4) in association with the respective step numbers.
摘要:
A driving apparatus (30, 50) for a loom (10) includes a main shaft (14) that transmits a rotational force to devices included in the loom (10), an alternating-current motor (16), a speed-reducing mechanism for transmitting rotation of the motor (16) to the main shaft (14) while reducing a rotational speed of the motor (16) at a predetermined ratio, an electromagnetic brake (24) that applies a braking torque to the main shaft (14) when an excitation current is supplied thereto, a drive circuit (34) that supplies alternating-current power to the motor (16), and a brake circuit (36) that supplies the excitation current to the electromagnetic brake (24). When the loom (10) stops, the drive circuit (34) outputs an alternating-current voltage at a frequency corresponding to a synchronous speed lower than the actual rotational speed of the motor (16), so that the motor (16) generates a braking torque in a direction opposite to the rotating direction. In addition, the brake circuit (36) outputs the excitation current to stop the main shaft (14).
摘要:
A driving apparatus (30, 50) for a loom (10) includes a main shaft (14) that transmits a rotational force to devices included in the loom (10), an alternating-current motor (16), a speed-reducing mechanism for transmitting rotation of the motor (16) to the main shaft (14) while reducing a rotational speed of the motor (16) at a predetermined ratio, an electromagnetic brake (24) that applies a braking torque to the main shaft (14) when an excitation current is supplied thereto, a drive circuit (34) that supplies alternating-current power to the motor (16), and a brake circuit (36) that supplies the excitation current to the electromagnetic brake (24). When the loom (10) stops, the drive circuit (34) outputs an alternating-current voltage at a frequency corresponding to a synchronous speed lower than the actual rotational speed of the motor (16), so that the motor (16) generates a braking torque in a direction opposite to the rotating direction. In addition, the brake circuit (36) outputs the excitation current to stop the main shaft (14).
摘要:
A method for preventing weft bars from being formed when a loom (1) stops, the loom (1) being operated on the basis of a shedding pattern of which a single repeat includes at least three cycles of a main shaft (23), includes a setting step of setting activation/non-activation of a plurality of kinds of weft-bar-prevention units (44) and activation quantity for when the weft-bar-prevention units (44) are activated in accordance with the combination of the cause of stoppage of the loom (1) and at least one of the cycle number in the repeat of the shedding pattern and a stop time for which the loom (1) has been stopped and a controlling step of controlling the weft-bar-prevention units (44) on the basis of the settings made in the setting step.
摘要:
After a picking action of a weaving machine, a cloth-end warp (12b) maintains its shed over a plurality of weaving cycles including a weaving cycle, in which weft ends (18a) are tucked in. An air is jetted toward a shed formed by warps in a widthwise direction of weaving from outside cloth (16) after that weaving, in which the weft ends (18a) are tucked in, and at latest before the cloth-end warp (12b) unsheds. This air jet energizes the weft ends (18a), tucked in, inside the cloth in the widthwise direction of weaving.
摘要:
After a picking action of a weaving machine, a cloth-end warp (12b) maintains its shed over a plurality of weaving cycles including a weaving cycle, in which weft ends (18a) are tucked in. An air is jetted toward a shed formed by warps in a widthwise direction of weaving from outside cloth (16) after that weaving, in which the weft ends (18a) are tucked in, and at latest before the cloth-end warp (12b) unsheds. This air jet energizes the weft ends (18a), tucked in, inside the cloth in the widthwise direction of weaving.