SU875278A1 - Device for investigating material fit process - Google Patents

Description

I

The invention relates to devices for determining the physicomechanical properties of textile materials and can be used in light industry.

A device for studying the planting process is known, which includes a base, pressure plates, a pressing plate and a measuring scale fl.

A disadvantage of this device is its low productivity, since it does not allow for one dimension to determine the critical value of the coefficient of fit, at which visible folds appear on the fabric. This device allows you to set only one value of the coefficient of fit per measurement. In order to determine the critical value of the fit factor, it is necessary to make a multitude of measurements at different values of the fit factor, which takes considerable time to install the samples.

The purpose of the invention is to increase labor productivity in assessing the physicomechanical properties of the fabric.

This goal is achieved in that the device, including a base, pressure plates mounted on it to secure the sample, a pressure plate and a measuring scale, contains a template shaped like a specimen sample, the pressure plate is equipped with a horizontal displacement drive, and the measuring scale is located on the pressure plate , while the latter is made of transparent material.

15

The drawing shows the proposed device.

The device includes a base 1, mounted on racks 2, in the grooves of which are located axis 3 with nuts 4,

Claims (1)

20 fixed on axis 5 eccentric 6 with lever 7, clamping plates 8, in the grooves of which there are studs 9 with nuts 10, an emphasis 11 and a curved pattern 12 mounted on the base. 1. The pressing plate 3 is located between the rubberized rollers 14 and 15 installed in the alignment of the 16 mounted on the axis 3, the ends of the roller 14 are equipped with handles 17, and the rulers 18 and 19 are fixed on the guides 16. The measuring device consists of the scales 20 applied on the pressing plate 13, the contacts 21 and 2 mounted on the ruler 19, a prefix (not shown), including a direct current battery, a key, a light bulb. The technological peculiarity of the device is the ability to determine the critical value of the fit factor for one measurement, since, by folding the edge of the sample onto a curved pattern and fixing it with clamps, the instrument sets a lot of fit factor values. The fit factor depends on the characteristic parameters: hem sizes 6. It can be calculated using the formula Since the radius of the template is constant, the scale on the pressure plate is graduated in terms of the coefficient of fit. The proposed device works as follows. Curved pattern I2 is laid on a piece of fabric W, equalizing straight cuts, and placed on base 1, aligning straight cuts with an emphasis 11. Curvilinear edge of strip W is folded over a curved edge of pattern 12 and fixed by means of nuts 10 at clamping plates 8. When In this case, the edge of the fabric is laid on a smaller section of fabric, setting the coefficient of fit, which varies along the length of the bend section. Acting on the lever 7 by an eccentric 6 moves the axis 3, and 84 with it the guides 16, rollers 14 and 15, the pressing plate 13 to the level required to create the pressing force. The guides 16 are fixed by nuts 4. Rotating the handles 17, move the pressing plate 13 along the rulers 18 and 19 to press the bent section of fabric W between the base 1, the template 12 and the pressing plate 13. When lifting the pressing plate 13, indicating that the edge of the fabric is compacted WHO at the time of the appearance of folds, pins 21, 22 close the electrical circuit, the light will come on. On a scale of 20, the critical value of the fit factor is determined. The operation is completed. Equipping the device with a pattern having the form of a test sample, a pressing plate made of a transparent material, equipped with a drive for horizontal movement and a measuring scale, allows for a higher labor productivity during the tests. Claims An apparatus for examining the process of planting a material, including a base, pressure plates mounted thereon for securing a sample, a pressure plate and a measuring scale, distinguished by that. That, in order to increase labor productivity during the tests, it contains a template having the shape of a test sample, the pressure plate is equipped with a horizontal displacement drive, and the measuring scale is located on the pressure plate, while the latter is made of transparent material. Sources of information taken into account in the examination of I. Lime universities, a series of Light Industry Technologists, 1979, No. 2, p. 62.