Cloth-rolling device of weaving machine

Abstract

The invention discloses a cloth-rolling device of a weaving machine, which consists of a friction clutch connected with an input shaft and an output shaft, a cloth roll diameter detection mechanism, a loading mechanism and the like. In the cloth roll diameter detection mechanism, a cloth-pressing roller jointed with a cloth roll by compression is movably hinged with a swing link of the cloth-pressing roller, the swing link of the cloth-pressing roller is fixedly connected with a part of a cam, a cam carrier props against the part of the cam, a pressure spring is sheathed on the cam carrier, one end of the pressure spring props against an adjusting nut and the other end thereof props against a force-amplifying lever; and in the loading mechanism, one end of the force-amplifying lever is in gap junction with the cam carrier while the other end thereof is provided with an adjusting screw with adjustable position, the terminal of the adjusting screw props against a loading bar which is movably hinged with a fixed shaft, and loading power is transmitted to an active friction disc of the friction clutch by a loading bearing. The cloth-rolling device has simple structure, convenient manufacture, installation and maintenance, and low cost; and the fabric tension is controllable when the cloth roll is formed by winding, thus being beneficial to preventing the fabric in the cloth roll from creasing and beneficial to the post process of the fabric.

Description

technical field [0001] The invention relates to an in-machine cloth rolling device of a loom, in particular to a method and mechanism for adjusting the tension of the cloth rolling, belonging to the technical field of textile machinery. Background technique [0002] The cloth rolling device of the loom is a special device that must be equipped with each loom. Its function is to wind the fabric that has been woven by the loom on the cloth rolling roller in a regular manner, so as to avoid the disorderly accumulation of fabrics that will affect the operation of the operator and cause fabric damage. stained, wrinkled or damaged. The main design index of the cloth rolling device is that both ends of the cloth roll are neat, there is no wrinkle in the middle, and the tension of each layer of cloth in the cloth roll is basically the same. It is conducive to the weaving of fabrics and the improvement of fabric quality, and at the same time it can facilitate post-processing such as...

AI Technical Summary

Problems solved by technology

In order to achieve the above design indicators, the cloth winding device needs to solve the following problems: First, the length of the fabric woven by the loom per unit time is affected by many factors and is not constant, so the cloth volume per unit time of the cloth winding roller is not constant. Constant; second, during the cloth rolling process, the diameter of the cloth roll gradually increases, so that the length of the cloth wound by the cloth winding roller per revolution also gradually increases, and the corresponding cloth winding roller speed must gradually decrease. Third, in order to keep the tension of the cloth basically constant during the cloth rolling process, the driving torque on the cloth rolling roller must increase with the increase of the cloth roll diameter

However, there are various types of fabrics woven by looms. When weaving light and thin fabrics such as silk, the tension of the fabric should be small, otherwise the fabric will be damaged; when weaving heavy fabrics such as denim, the tension of the fabric should be large, otherwise the cloth The fabric in the roll will wrinkle and affect the post-processing of the fabric

However, there are two problems in the above-mentioned technical solution: one is that the pressure roller swing rod and the sensing guide rod mechanism cannot make the displacement of the sensing guide rod—that is, the spring force of the sensing compression spring increases proportionally to the diameter of the cloth roll , so that it is impossible to maintain a constant tension of the cloth during the cloth winding process; the second is that the sensing pendulum and the pressing fork rotate around the same fixed hinge point. After the installation is completed, the above two components actually act as a lever. The increasing effect of the spring force of the sensing spring is fixed, and the loading effect of the pressing fork on the outer friction disc of the friction coupling is also fixed, and it is impossible to change with the change of the fabric type; so the adaptability of this technology to the fabric is relatively small. Difference

[0004] To sum up, some of the current cloth rolling devices for looms have complex structures and are expensive, and some are simple in structure but the cloth rolling effect is not ideal, so it is necessary to improve and innovate

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