SU467005A1 - Diamond band saw - Google Patents

Description

one

Diamond band saws are known mainly for stone processing, in which diamond bearing elements are installed with variable pitch, for example, pairs with different distances between adjacent elements in pairs and between pairs themselves. The disadvantage of such saws is the uneven wear of the group of elements located in the peripheral areas, when each successive element in the direction towards the central part of the saw wears out more than the previous one. This is due to the fact that diamond-bearing elements extending beyond the limits of the material being processed during the sawing process cut off the volume of the material, which is smaller in comparison with those elements that are located in the central part of the saw and are in constant contact with the material being processed.

The aim of the invention is to ensure uniform wear of the diamond-bearing elements along the entire length of the working face of the saw and to reduce the consumption of diamonds. This is achieved by the fact that the central part of the saw on the body section, equal to the difference in length of the material being processed and the saw frame stroke, is made with a constant distance between diamond-bearing elements, and on peripheral sections, equal to the stroke length of the saw frame, is determined from the expression

t-A X,

t, -

where Xg - the coordinate of the diamond-bearing element on the peripheral areas;

t is the distance between diamondiferous

elements; A-go saw frame.

FIG. 1 shows the proposed saw and its location relative to the material being processed; in fig. Figure 2 shows a graph of the variation in the variable pitch ti of the peripheral diamondiferous elements.

The band saw with a length Ln consisting of body 1 and diamond elements 2 is positioned symmetrically with respect to the material being processed 3 with length LM. The length of the working part of the saw is Ll, -L. All points on

the area of this length during reciprocating movement of the saw interact with the material being processed. If the amplitude of movement A, then the points located on the working face in the central part of the saw on

plot length LM-A, are in constant

contact with the material being processed. Step

diamond bearing elements t on this site

must be constant.

On the peripheral areas of the saw length L

the length of the contact path of the diamond-bearing elements with the material being processed changes and, consequently, their wear is different. In order to ensure uniform wear of the band saw, the saturation of the cutting face with diamond grains should correspond to the intensity of its abrasion along the length. Since in the central part of the nila diamond-bearing elements with a length a are installed at a certain distance from each other (with a step t, which is necessary for carrying out the products of destruction, to plot a graph (see Fig. 2), the ordinate axis lays the same relation -

Subject invention

Diamond stripe nila and, mainly, for processing stone, comprising a body and diamond-bearing elements located along the body, characterized in that

uniform wear of the saw and reduction of the specific consumption of diamonds, its central part in the body section equal to the difference in the length of the material being processed and the motion of the saw frame is made with a constant distance between the diamond bearing elements, and in the peripheral areas equal to the length of the saw frame stroke the distance between diamond-bearing elements are non temporary and are determined from the expression

. t-A -

where Xg - the coordinates of the diamond element

in peripheral areas; t is the distance between diamondiferous

elements; A-go saw frame.

ti

J t-J LJUJ