RU29378U1 - DEVICE FOR DETERMINING TISSUE FABRICITY - Google Patents

Abstract

A device for determining the crumbling of fabrics containing an abrasive that performs a rocking movement, characterized in that there is an additional abrasive that performs a reciprocating movement along the axis of rotation of the main abrasive, tissue samples are perpendicular to this axis and a fringe length sensor is used, the data from which are transmitted to a computer .

Description

TESTING APPARATUS

The utility model relates to light industry, and in particular to devices designed to determine the crumbling of materials, for example, on a POOT-1 device, the effect of which is spread on fabrics made from natural silk, chemical fibers and threads, linen dress-wear with chemical fibers and woolen dress with chemical fibers and threads.

Shedding is determined by the size of the fringe, formed as a result of the loss of threads from the fabric under the influence of shock, friction, bending and shaking.

The device POOT-1 was adopted as a prototype.

A disadvantage of the known solution is the lack of sensitivity of the device, as well as a significant variation in the test results.

The technical result is real; a useful model for it is to increase the accuracy of measurement, the sensitivity of the device, improve the quality of finished garments due to an objective assessment of the crumbling.

The specified technical result is achieved by the fact that the samples are perpendicular to the axis of the main abrasive, perfect; its swinging movement, while the distance in the pair of clamping abrasive is reduced to 2 mm. As the main abrasive, a w; a wiper with a natural w; etina located in several rows in contact with each other is used. There is an additional abrasive in the form of a metal plate that is being made; it is reciprocating along the rolling axis of the main abrasive between the sample and the surface of the brush.

In addition, a fringe length sensor is used to improve measurement accuracy. The sensor is able to perceive a change in the length of the fringe with an accuracy of 0.1 mm.

The advantage of the claimed utility model is that the device allows you to assess the degree of crumbling of any tissue. In addition, the proposed device includes the use of computers, which allows you to computerize the processing of measurement results and create a base on the subject of research.

The essence of the utility model is illustrated by the drawings, which show the mounting of samples, the location of the abrasives and the sensor relative to the surface of the samples (Fig. 1, a is a front view, b is a side view) and the structural diagram of the proposed measuring device (Fig. 2).

CLOTHES

Figure 1 shows a device for determining the friability, comprising a rack 1, on which ten removable cartridges 3 are placed one after another. Samples are fixed in the cartridge using a clamp 4. The rack is fixed with screws 12 on the bed 10. The distance between the screws is adjusted with the same screws resistant and natural bristle brush (abrasive 2). The brush is driven by the lever 11. The metal plate (abrasive 6) is mounted on the rack 1. The evaluation of the flaking is carried out by the fringe length sensor, consisting of a movable lift 9 and a photosensor, including a photodetector 5 and a light emitter 8.

The principle of operation of the device is similar to the prototype: one end of the samples is fixed in special clamps, the other hangs freely, so that the length of the protruding end of the test sample is 20 mm. Abrasive 2 makes a rocking movement with an amplitude of 40 degrees, and abrasive 6 makes a reciprocating movement along the brush with a constant speed. The operation cycle of the device is 10 minutes, after which the device automatically stops, which is provided by a timer included in the control circuit of the device. After the device is stopped, the abrasives 2 and 6 deviate to the extreme position and the length of the formed fringe is measured. The movement of the lift is possible both horizontally and vertically relative to the sample fixed in the clamp. The speed of the lift along the longitudinal threads is constant and is 5 mm / min. Having come into contact with the lower end of the sample, the hoist slowly begins to move along the longitudinal threads of the sample until it encounters the resistance of the transverse threads and the sample begins to deviate to the side. The moment the deviation of the sample from the vertical position is recorded by the photodetector 5. The received signals, after preliminary amplification and digitalization, are fed to the input of the computer, where they are processed using special software and displayed on the display (figure 2). The test results of tissues of various fibrous composition on the proposed and known device are shown in the table.

Thus, in relation to the prototype of the proposed device has the following advantages:

-increase the sensitivity of the device

-objectivity and reliability of the results in predicting the crumbling of tissues.

Sources of information taken into account.

Shedding tissue

-, -; y /

Claims (1)

A device for determining the crumbling of fabrics containing an abrasive that performs a rocking movement, characterized in that there is an additional abrasive that performs a reciprocating movement along the axis of rotation of the main abrasive, tissue samples are perpendicular to this axis and a fringe length sensor is used, the data from which are transmitted to a computer .