SU1436321A1 - Device for mechanical rubbing of specimens - Google Patents

Abstract

The invention relates to devices for mechanical abrasion of samples when preparing them for analysis in all parts of the national economy. The invention makes it possible to increase the productivity and quality of the abrasion of samples. The device contains a rotating mortar 1 and a spring-loaded pestle 2 that performs a horizontal movement, on which it is fixed; Scrappers in the form of plates 3 and 4. When the pestle moves from the center to the edge of the mortar, the plates move relative to the mortar forward with a thin side, without removing the abrasive material from the working area. During the reverse movement of the pestle, the plates move forward with a wide side, moving the material to the center of the mortar. 1 hp f-ly, 3 ill.

Description

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The invention relates to the analysis of materials and can be used in all parts of the national economy for the preparation of grinding samples for analka.

The purpose of the invention is to increase the productivity and quality of the abrasion of samples. .

FIG. shows the proposed device; FIG. 2 shows a section in FIG. one; figure 3 - the trajectory described by the plate along the bottom of the mortar with a uniform movement of the pestle.

The device contains a rotary mortar assembly 1 that performs a tilting motion of a spring-loaded pestle 2, on which the scrapers in the form of plates 3 and 4 are attached. When the mortar moves and the pestle moves, the plate 01 writes a complex trajectory along the bottom of the mortar, the velocity of which depends on the speed and character of the movement of the mortar and the speed of turning the mortar

When the pestle moves from the center of the mortar to the mouth of the mortar, the scraper will move along the pestle along the pestle, with a relatively abraded material moving a thin edge forward, not raising material to the edge of the mortar. During the reverse movement of the pestle to the center of the mortar, this scraper will move relative to the material of the Ashrok side forward to shift it to the center of the stewsie.

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Simultaneously, the second scraper will move through the center of the mortar, clearing its surface from adhering material. Since the scrapers move with respect to the material at all times by a varying angle, a constant roller of material is not formed in front of it and, therefore, the material is not compacted or fixed.

The movement of abrasive material by scrapers and the elimination of sticking of material to the bottom of the mortar ensures uniformity and the rate of abrasion of the material

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t, A device for mechanical abrasion of samples, containing a mortar with a rotation mechanism, mounted with the possibility of a trowel movement a spring-loaded pestle and at an angle to the direction of movement of the last crossing, so as to increase the

. no performance and quality of abrasion of samples, the scraper is fixed on

V necTHKe tangential to its working surface

2 The device, in accordance with paragraph 1, of which it is carried out with it, which is equipped with an additional scraper, zak. parallel to the main one

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At FIG. 3

Claims (2)

FORMULA AND ZBRETE I 1. A device for mechanical \ 2Q abrasion of samples, containing a mortar with a rotation mechanism, a spring-loaded pestle mounted with the possibility of pendulum movement and located at an angle to the direction of movement 25 of the last scraping, which can be In order to increase the productivity and quality of sample attrition, the scraper is fixed on the pestle tangentially to its working surface v 30. '' 2 * Device. According to claim 1, from l and - Phi L 1436321 ' Aa