SU1308482A1 - Blade for multicutter disk choppers - Google Patents

Abstract

The invention relates to equipment. for grinding wood. The purpose of the invention is to increase wear resistance and simplify the design. Knife. W and / includes plate 1 from front 2 and back 3 edges, the intersection of which forms a cutting edge 4, and two, side faces 5 and 6. Plate 1 has an adjusting hole 7. Side edges 5 and 6 form an angle with front face 2, equal to 78-84. The back face 3 of the knife is flat flat. The knife cuts the cutting edge 4 with a layer of wood, which is divided into chips by centrifugal forces. In the interaction with the wood during cutting, the front 2 and one side of the knife edge are located. The back face 3 of the knife is deflected from the cutting plane to exclude its friction against wood. In the process of operation, the knife is blunted. The retention of knife outreach is achieved by means of an adjustment hole 7. 9 Il. sl /.5 CO O CX) 4 oo to VtlZ.l

Description

The invention relates to the woodworking industry, in particular to equipment for grinding wood.

The chain of inventions is to increase wear resistance and simplify the design.

FIG. 1 shows the proposed knife, the overall appearance; in fig. 2 is the same, front view in FIG. 3 - the same, side view, in FIG. 4 - fastening the knife on the disk of the machine; in fig. 5 shows section A-A in FIG. four; in fig. 6 is a view B in FIG. four; in fig. 7 shows a wood cutting scheme; in fig. 8 is a view of B in FIG. 7; in fig. 9 is a graph of inclination versus cutting radius and knife thickness.

The knife includes a plate 1 of her 2 and the back 3 edges, which form a cutting edge 4, and two side edges 5 and 6. Plate 1 has an adjusting hole 7. The side edges 5 and 6 form from the front 2 an angle equal to 78-84. The knife is attached to the disk 8 of the chipper by means of a clamping bar 9 and a bolt 10. The rear edge 3 of the knife is made in the form of a flat surface with an angle of point b. Wood 11 is placed in the boot cartridge ..

The operation of the knife for multi-cutter disk grinding machines is carried out as follows.

The disk 8 of the chopper is driven into rotation. Knife, thrust on wood 11, cuts off the cutting chrome

from front to cross

This is a 4th layer of a different weight, which is divided by particles by centrifugal forces - chips. When cutting wood 11, front 2 and one lateral face of 5 or 6 blades interact with the latter. The back face 3 of the knife is deflected from the cutting plane to exclude its friction against wood.

I

Perform side edges 5 and 6

a knife at the same angle to the front face 2 improves cutting conditions, simplifies the design and increases wear resistance. In operation, the knife becomes blunt and wears out. Maintaining the constancy of the knife 1 is achieved by means of the adjusting hole 7. The knife blunted during operation is replaced by a sharpened knife. After which the cycle is repeated.

Claims (1)

Invention Formula A knife for multi-cutter disc chippers containing plates with a front face and inclined side and rear edges, a cutting edge formed by the intersection of the front and rear faces, and an adjusting hole, characterized in that, in order to improve its stability and simplify the design, the angle between the front and side faces is in the range 78-84, and the back face is made in the form of a flat surface. , / ъ / VM.I  - Rig. S Cutting plane needles Aa VadV fPliZ.6 fut. View in Fa.z 75 R, CM Editor I. Shulla Compiled by V. Agafonov. Tehred M. Khodanych 1666/14 Circulation 463 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4 Proofreader M. Pojo