SU1253779A1 - Machine for milling logs - Google Patents

Description

The invention relates to the woodworking industry, in particular to machine tools for milling logs.

The purpose of the invention is to reduce material consumption and improve the quality of chips.

FIG. 1 shows a kinematic diagram of the machine, side view; on r. 2 section aa in fig, 1; in fig. 3 is a sectional view of FIG. at 4 "g. 4 is a view of B in FIG. one; 5 shows the moment of operation of the cutting tool when the log is fed.

The machine contains a chain conveyor with shafts 1 and 2, asterisks 3 and 4 and an engine (not shown), cutters 5 E quality of cutting tools with engines 6 and a sliding mechanism - cutters, consisting of screws 7, passed through the rocker arms 8, supports 9 and handwheels 10. The drive of the cutting tools is made in the form of four-link hinged crank-and-box mechanisms, each of which is 1) made like a rocker arm 8, a connecting rod 11 and a crank 12 with a common curve 1 Pshny1M shaft 13, which connected to shaft 2 of a chain conveyor. The cranks 12 are mounted on the crank shaft 13 with the possibility of free movement along the latter. The kinematic relationship of the crank shaft 13 and the shaft 2 is outdone in the form of a gear-chain multiplier 14, freely suspended and equipped with anti-wind 53779g

Catfish 15 is for tensioning the chain 16, and cranks 12 are filled in the form of differential eccentrics. The chain conveyor has traction chains 17. 5 Order of setting up the machine. To set the required distance between the cutters 3, rotate the viiit 7 with the help of the steering wheels 10. At the same time, the blade 8 and the connecting rods 11 move with the cutters 5 mounted on them.

The machine operates as follows: Engines 6 and a chain conveyor engine, from which

15, the rotation is transmitted by the sprocket 3 and through the traction chains 17 - the asterisk 4 and the shaft 2; then, via the gear-chain multiplier 14, the crank shaft 13c is rotated with a twist-turn spikes 12, the latter are driven by the rods 11, while ellipsoid trajectory 18. The processed log 19 using a chain conveyor

25 tera are fed to the working area of the milling cutters. The resulting feed movement is formed from the movement of the log 19 by the action of the pull chain 17 and the movement of the center of the cutter along the path 18 and makes an acute angle with the direction of the fibers. At this, for each cycle of movement of the cutters 5 along the path 18, a layer of wood 20 is cut off in the form of shavings 21. After processing the log 19

A new log is fed by the JJ conveyor and the cycle is repeated.

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Editor T.M Teiko

Compiled by A. Bychkov Tehred V. Kadar

5a | saz A668 / 17

Circulation 501 Subscription

VNSHSHI of the USSR for inventions and discoveries 13035, Moscow, Zh-35, Raushsk iab., D.4 / 5

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11r1iz dG1 b - printing company, Uzhgorod, Projecta st., 4

Proofreader V.Siiitska

Claims (1)

A MACHINE FOR MILLING LOGS, containing a chain conveyor with shafts and a drive, cutting tools with a drive, a mechanism for pushing cutting tools, so that, in order to reduce material consumption and improve chip quality, the drive is cutting the tools are made in the form of four-link articulated crank mechanisms, each of which is made in the form of a crank shaft of a crank, and a connecting rod with a common crank shaft, which is connected with the shaft of the chain conveyor, and at the fulcrum bearing point the spreading mechanism of the cutting tool, and the cranks are mounted on the crank shaft with the possibility of free movement along the latter, while the kinematic connection of the crank shaft and the chain conveyor shaft is made in the form of a gear-chain multiplexer, freely suspended and equipped with a counterweight for tensioning the chain transmission, and the cranks are made in the form of differential eccentrics. SU .... 1253779 Φ * ·· 1