RU2422821C2 - Device to evaluate quality of bast or fibre of fibre crops - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: device to evaluate quality of fibre or bast of fibre crops comprises a frame with actuators fixed on it in the form of three pairs of rollers, two of which are installed at the inlet to the device, and the third one is at the outlet, and a computer-linked system of properties monitoring in the form of a motion sensor intended to monitor gap between rollers, when there is an analysed material in it, and a system of its colour monitoring. At the same time at the lower rollers of the second and third pair of rollers there is a continuous conveyor to move the material under a camera to detect colour parameters, and in front of the first pair of rollers, the upper roll of which is connected to a motion sensor, there is a limiter of handful width.

EFFECT: invention makes it possible to increase accuracy to detect quality of fibre or bast of fibre crops and to reduce duration of analysis.

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Description

The invention relates to the field of textile materials science and can be used in assessing the quality and standardization of fiber or bast of bast crops, for example flax.

Currently, the evaluation of the quality of scuffed flax fiber is carried out in accordance with GOST 10330-76 by comparison with standard standards, that is, organoleptically [1]. The disadvantages of this assessment are obvious: low objectivity and accuracy of analysis. The applied instrumental method is long and laborious. Therefore, it is necessary to create new devices for an objective assessment of the quality of scruffy flax.

A device for assessing the quality of fiber or bast of bast crops, containing a skeleton with mounted on it with working bodies and systems for controlling properties [2]. The main disadvantage of this device is the lack of color assessment of the fiber.

There is also known a device for assessing the quality of fiber or bast of bast crops [3], containing a skeleton with working bodies attached to it in the form of rolls and a computer associated with a property monitoring system in the form of a motion sensor designed to control the gap between the rolls in the presence of the analyzed material , and a color control system.

However, this device also has drawbacks associated with inaccurate determination of volumetric weight and color of the fiber.

The main objective of the invention is to increase the accuracy of determining the properties of fiber or bast of bast crops.

The elimination of the disadvantages of the known method and the solution of the problem is provided by the fact that in the device for assessing the quality of the fiber or bast of bast crops, containing a skeleton with working bodies fixed on it in the form of rolls and a computer associated with a property monitoring system in the form of a movement sensor designed to control the gap between the rolls in the presence of the analyzed material in it, and the color control system according to the invention, three pairs of rolls are fixed on the skeleton, two of which are installed at the entrance to the device, and the third - at the exit, on the lower rolls of the second and third pair of rolls, an endless conveyor is fixed for moving material under the camera to determine color parameters, and a handful width limiter is installed in front of the first pair of rolls, the upper roll of which is connected with the displacement sensor.

Installing three pairs of rolls reduces the weight of the roll associated with the displacement sensor. Reducing the weight allows to reduce the friction forces acting on the roll, as well as to reduce the deformation of the handful during the measurement of its thickness. Reducing the weight of the roll is achieved by installing a second pair of rolls installed at the entrance to the device and allowing to increase the force of retraction of a handful. The third pair of rolls allows for stable handful movement in the device at a constant speed, which makes it possible to more accurately evaluate the color parameters of the handful along its entire length.

The installation of a handful width limiter allows you to form a handful of a certain width, which is necessary for a more accurate determination of the bulk density of the fiber.

Installing an endless conveyor allows you to stabilize the location of a handful of fibers in front of the device for assessing color and to obtain better information about the color parameters.

The invention is illustrated by drawings.

In figure 1. and 2 are schematic diagrams of the device.

A device for assessing the quality of fiber or bast of bast crops consists of the following units: skeleton 1, three pairs of rolls 2, a displacement sensor for monitoring the clearance between the rollers 3, a system for monitoring color parameters 4, a width limiter 5, an endless conveyor 6.

The device operates as follows. A handful of the test material 7 is fed into the device through a width limiter 5. The handful movement in the device is carried out by means of three pairs of rotating rolls 2 and an endless conveyor 6. The handful is drawn into the device by the first and second pairs of rolls installed at the input. During the movement of a handful, its thickness is monitored (the size of the gap between the rolls) using a displacement sensor 3. Moreover, the control is carried out in different zones along the length of the handful. The color determination of the test material is carried out by a system for monitoring color parameters 4, mounted above the endless conveyor 2. A displacement sensor 3 and a system for monitoring color parameters are connected to a computer. According to the thickness of the handful and the color of the test material, its quality is determined.

Using the proposed device will more accurately determine the quality of the fiber or bast of bast crops and reduce the duration of the analysis.

Information sources

1. GOST 10330-76 "Flax shabby. TU".

2. Device for assessing the quality of fiber or bast of bast crops. USSR patent No. 1392505, cl. G01N 33/36 // G01N 1/20.

3. A device for assessing the quality of fiber or bast of bast crops. RF patent No. 2284033, cl. G01N 33/36.

Claims (1)

A device for assessing the quality of fiber or bast of bast crops, containing a skeleton with working bodies fixed in it in the form of rolls and a computer associated with a property monitoring system in the form of a displacement sensor, designed to control the gap between the rollers in the presence of the analyzed material, and its monitoring system color, characterized in that three pairs of rolls are fixed on the skeleton, two of which are installed at the entrance to the device, and the third at the exit, on the lower rolls of the second and third pairs of rolls an endless conveyor is fixed for To move the material under the camera to determine color parameters, and in front of the first pair of rolls, the upper roll of which is connected to the displacement sensor, a handful width limiter is installed.

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