2results about How to "Decrease pitch" patented technology

This utility model relates to the technical field of synthetic fiber production equipment, specifically disclosing a three-component composite spinning box component, including a main box. The main box has a steam inlet and a condensate return port on its outer side wall. A first auxiliary box is vertically stacked above the main box and partially overlaps with the main box in the horizontal direction. The outer side wall of the first auxiliary box has a steam inlet and a condensate return port. The vertical stacking layout optimizes space utilization, significantly reduces equipment width and floor space, and lowers factory costs. The horizontal consistency design of the steam and condensate pipelines reduces the distance between positions and the height of the windless zone, improving thermal energy utilization efficiency. The detachable aluminum alloy bracket simplifies maintenance procedures and extends equipment life. The overall structure is compact and rationally laid out, suitable for high-precision three-component composite spinning production needs, and combines high efficiency, economy, and ease of maintenance.

This utility model provides a quick clamping assembly for steel bar tensile test specimens, belonging to the technical field of steel bar performance testing and fixing. The assembly includes a movable clamping plate and an upper clamping mechanism. The movable clamping plate has a through hole in its center for inserting and fixing the steel bar. A threaded sleeve is fixedly installed on the outside of the through hole, and multiple sets of movable locking teeth are provided on its inner side. The clamping mechanism includes an adjusting part, one side of which is movably connected to a threaded knob, and the other side passes through the through hole and guides the movable locking teeth. The outer surface of the threaded sleeve has a threaded structure, and its end is fixedly connected to the outer wall of the movable clamping plate. A bearing seat is provided at the outer end of the adjusting part, and the inner wall of the threaded knob is movably connected to the bearing seat at the end of the adjusting part via a bearing. This utility model solves the problems of long operation time, poor adaptability to steel bar size, and low clamping efficiency in steel bar fixing and clamping.