摘要:
A chuck comprises radially slidable work-gripping jaws with racks, radially movable sliders with racks engageable with the racks of the jaws, and an axially movable slider-actuating means for radially moving the sliders in unison. Spring means are provided which urge the racks of both the sliders and jaws out of engagement, and a locking or restraining device is provided to force the racks of the sliders and jaws into engagement against the force of the spring means to make the connection between the sliders and jaws. When the locking or restraining device is unlocked, the connection is broken to allow the jaws to be radially moved independently of the sliders for radial adjustment.
摘要:
Disclosed herein is a method and apparatus for use with yarnspinning equipment wherein individual fibers are extracted from a bundle of fibers delivered from a supply source at a position in a fiber supply device where the fluid speed of the airstream for conveying the fibers is maximum, while the bundle of fibers is still gripped by the supply source. In the present invention, a distance between the nip point of the supply source and the above-mentioned position is particularly defined with respect to the staple length of the spinning material. Furthermore, preferable shapes are illustrated for the fiber guide conduit, the fiber-separating passage, and the fiber supply conduit of the fiber supply device for producing a high quality yarn.
摘要:
In an apparatus for weaving fabrics with a pirnless shuttle wherein a length of a weft substantially equal to twice the width of the fabric is measured and stored on one side, the first width of the stored length of the weft is pulled out and threaded in a shed by a pirnless shuttle, the second width is stored on the opposite side and is then threaded by the shuttle moving in the opposite direction, the shuttle is provided an inclined weft guide groove at one end and the weft is guided to be caught by said inclined weft guide groove.
摘要:
A chuck-claw coupling mechanism includes a coupling member provided in a master jaw, a first resilient member, and an operation unit. The coupling member is movable between a coupling position at which the coupling member is coupled to the claw, and a separation position at which the coupling member is separated from the claw. The first resilient member urges the coupling member toward the coupling position. The operation unit moves the coupling member to the separation position.
摘要:
A chuck grip accuracy checking method includes a gripping in which the measurement target is gripped on the claws, a moving step, and a measuring step. In the moving step, a movable member provided with a measurement instrument capable of measuring a run-out of the measurement target is moved by driving a movable-member driver to a position at which the measurement instrument can measure a run-out of the measurement target. In the measuring step, a run-out of the measurement target is measured by the measurement instrument, while the chuck is being rotated by driving a rotation driver.