摘要:
A bearing assembly, including: a housing having a through hole; first and second bearings coaxially set in the through hole, the first bearing is located at one end and the second bearing is located at an other end of the through hole, and both the first and second bearings include inner and outer rings. A first shaft sleeve is set between the first and the second bearing along an axial direction. An end cap located at the other end of the through hole, is connected with the housing and adapted to rotate relatively to the housing. The first bearing is located between the end cap and the first shaft sleeve along the axial direction. Accordingly, the end cap can be connected with the housing for preventing the end cap from falling out of the housing, thus the bearing assembly is configured into an integrated piece for transportation and usage.
摘要:
Methods and apparatus are provided to make composite yarns having a filamentary core with at least one elastic performance filament and at least one inelastic control filament. A fibrous sheath, preferably formed from spun staple fibers, surrounds the filamentary core, preferably substantially along the entire length thereof. The at least one elastic performance filament most preferably includes a spandex and/or a lastol filament. The at least one inelastic control filament is most preferably formed of a textured polymer or copolymer of a polyamide, a polyester, a polyolefin and mixtures thereof. Preferably, the fibrous sheath is formed of synthetic and/or natural staple fibers, most preferably staple cotton fibers. The elastic composite fibers find particular utility as a component part of a woven textile fabric, especially as a stretch denim fabric, which exhibits advantageous elastic recovery of at least about 95.0% (ASTM D3107).
摘要:
A machine is described for producing a knitted fabric with at least partial use of fibrous material (10), in particular a circular knitting machine (1). At least selected knitting stations (6) are assigned drawing frames (8) for producing threads (11) which are formed from the fibrous materials (10). According to the invention, the drawing frames (8) lie in the reaching area of an operator (5) working on the machine (1) and can be opened downwards (arrow v) or to the side.
摘要:
Composite yarns have a filamentary core provided with at least one elastic performance filament and at least one inelastic control filament. A fibrous sheath, preferably formed from spun staple fibers, surrounds the filamentary core, preferably substantially along the entire length thereof. The at least one elastic performance filament most preferably includes a spandex and/or a lastol filament. The at least one inelastic control filament is most preferably formed of a textured polymer or copolymer of a polyamide, a polyester, a polyolefin and mixtures thereof. Preferably, the fibrous sheath is formed of synthetic and/or natural staple fibers, most preferably staple cotton fibers. The elastic composite fibers find particular utility as a component part of a woven textile fabric, especially as a stretch denim fabric, which exhibits advantageous elastic recovery of at least about 95.0% (ASTM D3107).
摘要:
A machine is described for producing a knitted fabric with at least partial use of fibrous material (10), in particular a circular knitting machine (1). At least selected knitting stations (6) are assigned drawing frames (8) for producing threads (11) which are formed from the fibrous materials (10). According to the invention, the drawing frames (8) lie in the reaching area of an operator (5) working on the machine (1) and can be opened downwards (arrow v) or to the side.
摘要:
The invention relates to a method and apparatus for removing conical yarn bobbins, particularly in relation to withdrawing them from a conveyor belt which receives and moves said conical bobbins after they have been doffed and discharged from the units of a bobbin producing textile machine, and depositing them in an ordered arrangement on a peg trolley. The apparatus comprises essentially:a shelf-like collection station on which there is fixed at least one sufficiently inclined cradle-shaped roller track for laterally guiding the full bobbins leaving the conveyor belt;a portal manipulator unit with a pendant arm provided with a pin-type gripper which penetrates and withdraws several bobbins one behind the other to transfer them from their prepared-for-withdrawal position to their ordered deposition position by means of vertical and horizontal translational movements and rotational movements generated and coordinated by drive sources which are activated and controlled, moment by moment, by a control unit;a control unit based on a miniprocessor into which an operating program and a set of operating data for computerized positioning are fed. Said control unit also comprises a computing center which determines and memorizes the number of bobbins to be deposited in an ordered arrangement on the pegs of the creel trolley, progressively compares the deposited number of bobbins with the memorized number, and generates a luminous and/or acoustic end-of-cycle signal when the number of bobbins deposited equals the number memorized.
摘要:
In order to increase the yarn tension between a winder and a bobbin creel, the yarns are returned from a first yarn tensioner to the inlet of a second adjacent yarn tensioner in the row. The rows of bobbins which are associated with the second yarn tensioners remain without bobbins. In order to facilitate a change in direction when dealing with sensitive yarns at the second yarn tensioner, a direction-changing roller is disposed at the inlet thereof.
摘要:
An apparatus and method of forming a twisted yarn and a doubled cord in which yarn twisting is carried out by feeding a yarn by means of a feed device into a rotating hollow member, temporarily storing the yarn and subsequently reversing the direction of the feed device to remove the yarn and give it further twist. Two or more yarns may then be folded together to form a cord and this is preferably carried out whilst passing the twisted yarns into a further rotating member, of which the following is a Specification.