| 摘要 |
The cage structure (10) for the upper belt, at the drawing unit for a spinning machine, has a carrier body (12) supported by a carrier shaft (8) held by the pressure arm. At least one pair of belt guides (13R,13L) are separate from the cage body (12), and are fitted to it to control the movement of the upper belt in the lateral direction. A positioning system (16,17) mounts and secures at least one pair of belt guides at the cage body (12) at one of a number of positions according to the spindle interval. The belt guide has a positioner at one working section (16) at the side of the cage body (12), and at a second working section (17) for the guide. The assembly has a number of first and/or second working sections for the positioners for different belt guide locations, symmetrical to the center line of the cage body (12), which can work with two types of belt guides (13R,13L) to bring them together or move them further apart. The belt guides (13R,13L) are integrated into the belt tensioner. The belt guides clamp into the cage body (12), with a flexible upper (15b) and a lower clamping unit, parallel to each other from a curved section, with a gap which is less than the thickness of the carrier section (12a). The cage body (12) has a pair of carrier sections (12a), at positions matching the upper belt, each fitted with a belt guide. A pair of control sections (18) determine the lateral movement of the upper belt, formed at the upper clamp unit (15b). The second working position for the positioner is at the lower clamp unit. The belt guides (13R,13L) are of a resin, or a fiber-reinforced resin.
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