2results about How to "Reduce parallelism" patented technology

The utility model provides a kind of tensioning device of belt conveyor, including belt seat, driving pulley rotationally arranged in one end of belt seat, driven pulley rotationally arranged in other end of belt seat, fixed push-up piece and movable push-up piece;Belt seat includes first split body and second split body, and the end of first split body and second split body is movably spliced together;Fixed push-up piece is located in the inside of first split body and is located in the end close to second split body, and the side wall of second split body is formed with insertion hole in the end close to first split body, and movable push-up piece is inserted into insertion hole;First inclined plane is formed in the side of fixed push-up piece facing movable push-up piece, and second inclined plane is formed in the side of movable push-up piece facing fixed push-up piece, and it is contacted with first inclined plane.The utility model has the advantages that: the distance between driving pulley and driven pulley can be adjusted by the way of pushing and pulling movable push-up piece, and the tensioning adjustment of conveying belt sleeved between driving pulley and driven pulley can be well realized.

This invention provides a blended yarn production apparatus, blended yarn, and a production method thereof. The blended yarn production apparatus includes a first guide roller, a second guide roller, a first pressure sensor, a second pressure sensor, a front roller, a tension compensation unit, and a control unit. The first and second guide rollers are arranged side by side, and the first and second pressure sensors are respectively disposed in the grooves of the first and second guide rollers. The front roller is located downstream of the first and second guide rollers along the yarn feeding direction. The tension compensation unit is located upstream of the first and / or second guide rollers along the yarn feeding direction. The output terminals of both the first and second pressure sensors are connected to the input terminal of the control unit, and the output terminal of the control unit is connected to the input terminal of the tension compensation unit. This blended yarn production apparatus and method can improve the structural stability of the spinning twisting triangle zone and improve the performance of the blended yarn.