摘要:
The device for detecting breakage of leno threads in leno selvedge devices on looms, the leno selvedge forming device being provided with at least two arms for guiding at least two leno threads, the leno threads being twistable together by virtue of the rotation of the arms, the device (12, 13, 14, 14a) for detecting thread breakage being provided with a facility (13, 14) for determining the natural oscillations of the arms (12) and a loom, more specifically with heald frames, with at least one leno device which is reversible in its direction of rotation and with a facility for detecting breakage of the leno threads, the device for detecting thread breakage being arranged in the front shed (V), more specifically between the leno device (10) and the heald frames (20).
摘要:
A device for removing a broken warp thread from a warp stop motion includes a plurality of extraction elements that may include nozzles, hooks, grippers and the like that lift a slack loop of broken warp thread at a fallen drop wire associated with the broken warp thread and move the loop to a position outside the stop motion by passing the loop sequentially from one nozzle, etc. to the next in a single direction until the loop is outside the stop motion, where it can be gripped by a thread holder for further manipulation.
摘要:
A method and apparatus for separating a broken warp thread at the warp stop motion from the warp sheet on a weaving machine in which the warp stop motion includes several rows of drop wires, the method including the step of extracting a loop in the broken warp thread caused by a sag as a result of the corresponding drop wire falling away from the fallen drop wire. The apparatus includes a series of suction or blower nozzles or grippers which are sequentially activated to pass the loop between the adjacent nozzles or grippers toward the side of the warp sheet.
摘要:
A warp stop motion device of a weaving machine has upper and lower supports respectively for contact bars and guide bars lying in transversely spaced vertical planes with vertically extending legs thereon having adjustment and locking means to facilitate a clamped vertical adjustment between the upper and lower supports. The lower supports are cantilevered at one end to a longitudinally extending beam serving as a warp end carrying support, and the upper supports are cantilevered at one end to the one end of the lower supports. Thus, the opposite ends of the upper and lower supports are free and unsupported for the reception of the guide bars from such ends during assembly.
摘要:
The holding device is provided with a shaped body for raising and lowering the plate-shaped element located within the fixedly mounted support. The shaped body may be in the form of a wedge shaped body or in the form of an eccentric. Suitable means are provided for holding the wedge shaped body in place. Raising and lowering of the plate-shaped elements allows the electrical contact elements to be raised and lowered to adapt to the operating conditions of the weaving machine.
摘要:
A warp thread monitoring apparatus for looms wherein each properly tensioned warp thread passes through an associated thread monitoring lamella or blade and retains such in an elevated position, and upon rupture of the relevant warp thread this lamella then drops into a lower position, thereby activating a release or triggering mechanism for sounding an alarm or stopping the loom. According to important aspects of the invention, a channel system is arranged beneath each row of thread monitoring lamellae and upon rupture of the relevant warp thread the corresponding lamella drops into this channel system to interrupt the flow of an air current forced from the inlet side of the channel system to the outlet side thereof. This in turn affects the operation of a pneumatic flow sensing device influencing the trigger mechanism for sounding the alarm or stopping the loom.