SU1019285A1 - Device for determination of operating flexible materials - Google Patents

Description

(/)

WITH

13

Lootia refers to the technique of abrasion testing of materials, mainly textiles, according to the degree of their destruction.

A device for determining the destruction of flexible materials is known, comprising a housing, a reciprocating drive, two clamps of a sample of a flexible material, a tension mechanism interacting with one of the clamps, and a deformer made in the form of a cylindrical rod. A sample of a flexible material is stationary, and its second clamp is also connected to the tensioning mechanism, and the deformer is located on the yoke, which in turn is connected to the drive of the reciprocating motion ti.

However, the known device does not effectively use the method of measuring the destruction of a material by an aerosol component, which provides a high accuracy estimate of the resistance of a flexible material to abrasion, because the selection system of an aerosol component cannot be located close to the abrasion zone.

The purpose of the invention is to improve the accuracy of testing by measuring the destruction of a flexible material by an aerosol component.

This goal is achieved by the fact that the device for determining the destruction of flexible materials, comprising a housing, a reciprocating drive, two clamps of a flexible material sample, a tension mechanism interacting with one of the clamps, and a deformer made in the form of a-cylindrical rod, is provided with a second a deformer whose axis is parallel to the first one, a reciprocating drive is connected to the second terminal, and an aerosol component selection system is located between the deformers.

The drawing shows a schematic diagram of the device.

A device for determining the destruction of flexible materials consists of two deformers 1 and 2, made in the form of cylindrical rods, the axes of which are parallel, and intended for placing the test sample 3 of flexible material on them and telling it to bend deformations. Along with this, deformers 1 and 2 have an abrasive effect on sample 3.

The device also contains two presses 4 and 5, which are designed to fix the two ends of sample 3. They clamp 4 interacts with the tensioning mechanism 6, and clamp 5 kinematically

associated with the drive 7 reciprocating motion. In the space between the deformers 1 and 2 there is an aerosol sampling system consisting of a nozzle 5 8 for supplying purified air and an air intake pipe 9. On the latter, the measuring element 10 of aerosol particles is installed, which is electrically connected

10 with an aerosol analysis unit 11 equipped with a recording device 12. An intermediate tube 13 is installed coaxially with the air intake pipe 9 and connected to the air pump and

15 flow meter (not shown).

The device is equipped with a software node 14, which contains a counter of the number of double strokes of the drive 7 of the reciprocating movement, which receives signals from the lobe 15, with which the stop 16 of the drive 7 of the reciprocating movement interacts. In addition, the device is equipped with a removable sealing housing 17.,

One of the free ends of sample 3 is fixed in a holder 5, which by means of a transitional ee & n, whose position in space is fixed by a guide fixed in turn on the body of body 17, is coupled with an actuating lever 7, which is included in the reciprocating mechanism driven movement

5 electric motor.

 The other free end of the sample 3 is fixed in the holder 4, to which the load 6 is connected.

Executive lever 7 is equipped

0 by a protrusion (stop 16, which has a temporal-spatial relationship with the lobe 15 of the program counter 14 operating cycles.

The nozzle 8 is directed to the inner space, formed as a result of bending of the rod deformers 1 and 2 by the working plane of sample 3, on the one hand, and to the same space, on the other hand,

 an air intake tube 9, which is directly coupled to the measuring element 10 of aerosol particles, which is electrically connected through a transmission line to

5 by an aerosol analysis unit 11 equipped with a self-recording output device 12. The intermediate pipe 13 is connected with the air pump. The device works as follows.

0 way.

On the deformers 1 and 2 impose the test sample 3 of rectangular shape; one of its slack end is fixed in clip 4 and the other in

5, clamp 5; The required force of interaction between sample 3 and deformers 1 and 2 is created by a tension mechanism 6.

Using the software node 14, the required number of working cycles for moving the sample 3 is preset. The working space of the device is sealed with the help of the removable housing 17. The air pump is activated, which through the intermediate tube 13 creates air discharge in the internal sealed space of the device; power supply. At block 11 of the analysis of aerosols, power is supplied. The actuator actuates the software node 14 and simultaneously supplies power to the actuator 7 of the reciprocating motion. In this case, sample 3 performs a reciprocating motion.

As a result of the sample sliding over the surface of reformers 1 and 2 while bending at the same time, its sample 3 is worn out, as a result of which the degradation products in the form of an aerosol are released into the surrounding air space.

Under the action of an air pump whose air flow is controlled by a flow meter, the air flow cleaned in the filtering unit enters the internal cavity of the device through cuttings 8 and captures the separated degradation products along the way (aerosol from the body of sample 3 and through the air intake pipe 5) to the estimated measuring element 10, where a primary electrical signal is generated on the number of aerosols.

The primary electrical signal is transmitted via cable to aerosol analysis unit 11, where information on the parameters of sample destruction 3 5 is recorded on the recorder 12 directly in the counting (number of particles per 1 m of air) or weight milligrams per 1 m of air) units.

Upon expiration of the programmed

0, the number of test run cycles of sample 3, software node 14 automatically shuts off power, and the reciprocating movement of sample 3 stops.

five

Using this device. allows testing of samples of flexible materials under complex loading conditions.

Claims (1)

157) DEVICE FOR DETERMINING DESTRUCTION OF FLEXIBLE MATERIALS, comprising a housing, a reciprocating drive, two clamps of a sample of flexible material, a tension mechanism interacting with one of the clamps, and a deformer made in the form of a cylindrical rod, which means that, in order to increase the accuracy of tests by measuring the destruction of the flexible material along the aerosol component, it is equipped with a second deformer, the axis of which is parallel to the first, the reciprocating drive is connected to the second Agim, a selection system is disposed between the aerosol component deformatoramn.