SU1391811A1 - Method of cutting band material - Google Patents

Description

(21) 4125364 / 25-27

(22) 07.24.86

(46) 04/30/88. Bul Number 16

(71) Volgodonsk branch of the All-Union Design Technological Institute of Nuclear Engineering and Boiler Construction

(72) V.I. Sergienko, M.V. Trudler and A.D. P to

(53) 621.967 (088.8)

(56) USSR Copyright Certificate No. 649566, cl. B 26 D 1/16, 1977.

(54) METHOD OF CUTTING BELT MATERIAL

(57) The invention relates to cutting tape material, preferably an abrasive cloth. The goal is to improve the quality and performance when cutting abrasive cloth. The method of cutting a tape material, preferably an abrasive cloth, involves feeding the cut sheet with pairs of elastic rotating sleeves with the abrasive layer located on the side opposite to the circular knives. Circular knives are located in the technological gap and interact with the material being cut by. unsupported scheme. The size of the technological gap is determined in accordance with the thickness of the disk knife and the thickness of the cut sheet. 2 il

with so

The invention relates to cutting tape material, mainly abrasive cloth.

The aim of the invention is to improve the quality and productivity when cutting abrasive cloth.

FIG. 1 shows a diagram of a device for implementing the proposed method for cutting tape material; in fig. 2 shows section A-A in FIG. one.

The method of cutting tape material, mainly abrasive cloth, includes the supply of the material being cut and its cutting with non-driving disk knives located in the technological gap in a non-supporting pattern. The cut abrasive cloth is fed in pairs of elastic rotating sleeves with the abrasive layer located on the side opposite to the disc knives, with the beginning of the cut placed in the contact zone of the pair of elastic sleeves, and the value of the technological gap S is determined from the ratio

S S. + K-S

7

where S is the thickness of the disk knife; S is the thickness of the abrasive cloth;

K 2-4 - proportionality coefficient.

The method of cutting tape material is implemented as follows.

In the middle of the technological gap between the elastic clamping sleeves 1 of the drive 2 and the idle 3 rolls, non-driving disk knives 5 are mounted on the adjustable mandrels 4 so that the start of the cut is in the contact zone of the clamping sleeves 1.

When the abrasive cloth b is fed into the rotating elastic clamping sleeves 1 with a fabric base and from the side of the circular knives 5, the fabric base a is cut, which, bending the circular knife, is bent in the gap S between the pressing sleeves 1, and the abrasive b located on the ends the strips of the web 6 are self-sharpening the knives 5.

At the same time, in order to ensure an optimal ratio between the quality of the end face of the abrasive cloth 6 being cut and the wear of the disk knife 5, the technological gap S between the pressing sleeves 1 is determined by the indicated ratio.

Claims (1)

Invention Formula A method of cutting a tape material, preferably an abrasive cloth, including feeding the cut material and cutting it with non-driving disc knives located in the technological gap in a support-free pattern, characterized in that, in order to improve the quality and performance, the feed of the cut abrasive cloth is realized in pairs of elastic rotational knives with the location of the abrasive layer on the side opposite to the circular knives, the beginning of the cut is placed in the contact zone of a pair of elastic sleeves of the sleeves, and the value of the technological gap S is determined from the ratio S Si + K-SI, where S is the thickness of the disk knife; Sj is the thickness of the abrasive cloth; K 2-4 - proportionality coefficient. 1391811