2results about How to "Save length space" patented technology

The present application aims to provide a kind of narrow space bridge cable push-pull tensioning method, comprising the following steps: A, two groups or more than jack are provided between working anchor and tool anchor, each group of jack is evenly arranged, so that when it pushes tool anchor, tool anchor is uniformly stressed;B, intelligent oil pump controls the oil pressure of each group of jack, so that it remains consistent, and simultaneously push tool anchor, and the steel strand is tensioned, when jack pushes to reach the stroke position, anchor nut of working anchor is locked;C, intelligent oil pump returns oil, and tool anchor returns initial position;D, repeat steps A-C, until the cable force reaches the design requirement.The present application aims to provide a kind of narrow space bridge cable push-pull tensioning method, which can well meet the steel strand tensioning demand in narrow space, and the tensioning process is stable, without damaging steel strand twist angle, to ensure tensioning effect.

The bag making equipment comprises a film releasing mechanism, a roller film feeding mechanism, a film pulling mechanism, a bag making welding area, a conveying line and a pipe opening welding mechanism, the film releasing mechanism, the roller film feeding mechanism, the bag making welding area and the pipe opening welding mechanism are sequentially arranged, and the film pulling mechanism and the conveying line are arranged on the same side of the bag making welding area. The film drawing mechanism comprises a film drawing head, a linear drive and an avoiding drive, and the linear drive and the avoiding drive are used for driving the film drawing head to reciprocate at the two ends of the bag making welding area; the bag making, filling and sealing system comprises the bag making equipment, the conveying line is a circulating conveying line, and a pipe opening welding mechanism, a waste edge cutting station, a bag transferring and reversing station, a filling station, a sealing station and a bag discharging station are sequentially arranged on the conveying line. The mounting distance is shortened, the problems that the longer the film feeding distance is, the more likely to generate film falling faults and film feeding deviation are solved, and the problems of low stability and qualified rate caused by the problems are solved.