Lever type pneumatic cradle of roving machine

Abstract

The invention discloses a lever type pneumatic cradle of a roving machine. The lever type pneumatic cradle of the roving machine comprises a cradle housing, a handle and a cradle holding seat, wherein the cradle housing, the handle and the cradle holding seat are connected with one another in a hinged mode, a pressure transmission crank is connected with the cradle holding seat in a hinged mode through a crank pin, a pressure pin sleeve at the lower end of the handle is connected in a pressure groove in the front end of the pressure transmission crank in a clamped mode, an adjusting screw rod is mounted at the rear end of the pressure transmission crank through a first internally threaded hole, an inner groove body is mounted on the cradle housing through a connecting pin and a groove body pin hole, each of two pressure dispersing adjusting seats is mounted on the inner groove body through an adjusting pin, an adjusting pin hole and an adjusting mounting hole of the pressure dispersing adjusting seat, two upper roller holding seats are respectively mounted in sliding grooves of each pressure dispersing adjusting seat, and the upper roller holding seats can move in the sliding grooves and can be positioned in the sliding grooves through bolts. According to the lever type pneumatic cradle of the roving machine, the lever principle is fully used, stepless pressure adjustment and rapid pressure adjustment can be realized in the lever type pneumatic cradle of the roving machine, and pressure is enabled to be lasting and constant.

Description

technical field [0001] The invention relates to a roving drafting device used in roving weaving equipment, in particular to a cradle of a roving frame using pneumatic pressure. Background technique [0002] At present, the three-roller spring type pressurized cradle is widely used in the roving frame in the market. Its structure is: including the cradle shell, the handle is hinged with the cradle shell through the handle pin, and the cradle shell is connected through the shell pin. It is hingedly connected with the cradle holding seat, and the cradle holding seat is installed on the cradle shaft, and the three pressure seats are respectively fixed on the cradle shell by bolts, and each press seat is equipped with a spring, each The pressing seat is also provided with an eccentric wheel and a top roller holding seat respectively. The top roller holding seat can move up and down in the pressurizing seat. The eccentric wheel is in contact with the upper end of the spring, and t...

AI Technical Summary

Problems solved by technology

This structure not only has high requirements on the spring material and manufacturing process, but also with the increase of service time, the pressure decay phenomenon will inevitably occur due to the fatigue of the spring, making it difficult to apply long-term constant pressure on the rollers, resulting in various The direction and size of the pressure exerted by the springs in the pressing seats on the rollers are inconsistent, and the pressure difference between the springs in adjacent pressing seats is relatively large, resulting in poor spinning quality; in addition, the pressure adjustment operation of this structure is very complicated, making the Adjacent cradles are difficult to keep consistent, resulting in low work efficiency

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