摘要:
A package feeding method and apparatus for a yarn twisting machine having a large number of two-for-one twisters of two stage yarn supply type. A package is fed after an end of yarn of the package has been wrapped in several turns of a yarn layer non-existing portion of the package.
摘要:
An improved device to piece-up yarn and doff yarn packages on open-end spinning machines. The device comprises a carriage (12) equipped with specific means for the tasks of piecing-up yarn and doffing yarn packages, said carriage being supported cantilever-wise by an arm (13) secured to a trolley (15) able to run on lengthwise guides (17), said carriage (12) being equipped with an arm (20) to hold tubes which cooperates with a store (18) of tubes.
摘要:
Apparatus movable along a spinning frame to doff full bobbins from the spindles thereof and to don empty bobbins onto such spindles. Low pressure pneumatic sensors are provided for emitting a stream of low pressure air into the path of movement of selected elements of the apparatus and generating a pneumatic signal each time a stream of low pressure air is interrupted by the movement of such elements, and a low pressure pneumatic control system receives the pneumatic signals and operates the selected elements of the apparatus in a predetermined sequence.
摘要:
An automatic doffing and donning apparatus is disclosed for replacing a plurality of full bobbins which are mounted on winding spindles disposed parallel to each other on a yarn processing machine with a plurality of empty bobbins which are mounted on a bobbin reservoir plate disposed along and in front of the winding spindles. The apparatus comprises: a movable frame which is horizontally movable along both the yarn processing machine and the bobbin reservoir plates; a full bobbin doffing device mounted on the movable frame for doffing the full bobbins formed on the winding spindles and transferring them to the bobbin reservoir plate, and; an empty bobbin donning device mounted on the movable frame. The empty bobbin donning device is provided with: an empty bobbin transfer mechanism which moves the empty bobbins on the bobbin reservoir plates to a stand-by position located vertically outside of the operating space of the full bobbin doffing device, so that the empty bobbins do not disturb the operation of the full bobbin doffing device, and; a bobbin insert mechanism which receives the empty bobbins from the empty bobbin transfer mechanism located at the stand-by position and which inserts them on the winding spindles after the full bobbins are doffed from the winding spindles by the full bobbin doffing device.
摘要:
Apparatus for simultaneously doffing full packages mounted on spindles of a textile machine such as a spinning frame onto a conveyor mechanism of a straight peg arrangement type and for donning bar bobbins mounted on an auxiliary peg apparatus onto the spindles, by carrying them on a transporting device provided with a pneumatically operated holding device, which transporting device is moved along prescribed routes by a combination of the pantograph motion of a pantograph mechanism of the transporting device, and of an outwardly and horizontally displacing motion. Auxiliary pegs are mounted on said auxiliary peg apparatus which apparatus is arranged in the same horizontal plane as the pegs of the conveyer mechanism. These auxiliary pegs may be swung to an operating position in which the pegs of the conveyer mechanism and the auxiliary pegs are respectively situated in the same vertical planes, within which the spindles of the spindle rows are also respectively situated.
摘要:
Multiple full bobbins simultaneously doffed from group to group from textile machines such as draw-twisters are automatically accommodated within a bobbin storing cage in prescribed arrangements without any undesirable mutual contact of the bobbins and the apparatus carrying the cage travels intermittently along the row of spindles in order to carry out the group doffing.