SU761388A1 - Apparatus for longitudinal actuation of timber - Google Patents

Description

The invention relates to the field of processing of round timber, for example mine longitude on the mine stand or lengthy balance on balance-short. It can be used in the timber and woodworking industry for the longitudinal movement of timber with its subsequent cross-cutting (bucking) on rotary-type installations. ten

A device for the longitudinal movement of timber, containing a frame with drive rollers connected by a flexible connection, a clamping mechanism and a drive [1]. 15

The disadvantages of the known devices are low productivity and unreliable clamping short.

The purpose of this invention is to increase productivity and ensure reliability of the short clamp.

This goal is achieved by the fact that the clamping mechanism is made in the form of a pivotally attached to the frame and connected to a drive lever, on the free 25 end of which is a hinged balance bar with rollers-stars, interconnected by a traction body with tracks.

The invention is illustrated in the drawing, which shows a General view of the device. thirty

2

The device includes transporting sections 1, sprocket rollers 2, a chain traction body 3 with saddle-shaped tracks 4. The traction body of the sections is connected to the drive

5. Sections are mounted on the frame 6. To hold the timber 7 in the process of rotating the rotor installation, i.e. pushing it onto the saw 8, the clamp 9 pivotally fixed to the frame, driven by the actuator 10. The balance bar 11 s is pivotally fixed on the free end of the clamp rollers-stars 12, interconnected by an endless traction body 13 with track 14. To activate the pressure drive in each section, one sensor 15 and 16 are installed.

The device works as follows. Each chain traction unit 3 with saddle-shaped tracks 4 through the star wheel 2 receives movement from the drive 5. Timber 7 loaded into

I section 1, acts on the sensor 15, which includes the actuator 10 clamp 9, pressed against the saddle tracks 4, is oriented relative to the tops of the saddles of tracks and moves together with the traction body in the longitudinal direction. Further, the timber acts with its end on the sensor 16;

Section II 1. After the longitudinal movement 761388

Timber for a given value of the drive 5 is turned off, and therefore stops the timber. In the process of longitudinal movement, the rotor in which these devices are installed also rotates; thus, the timber 7 is pulled over the saw 8. The sawn-off assortment is reset by opening the clamp in section II. The drive 5 is turned on, and the cycle repeats.

During the last cut, when a short workpiece remained, the latter, like the previous cuts, moves between two endless traction organs - the transport section I and the clamp. When longitudinally moving, the timber 7 is correctly oriented, since it is pressed and oriented relative to the saddles of the tracks and moves along with them, the transition from Section I to Section II is reliable, and the orientation is not lost, because the timber is clamped by all the tracks that engage. .

If the log is crooked or with knots and growths, the latter fall between the tracks. In this case, the force of adhesion of the log with the traction body does not decrease, and in some cases it may increase.

Claims (1)

Claim A device for longitudinal movement of timber, containing a frame with driving rollers connected by a flexible coupling, a clamping mechanism and an actuator, characterized in that, in order to increase productivity and ensure reliability of the clamping of the short, the clamping mechanism is made in the form of a hinge attached to the frame and connected to the drive lever , on the free end of which is a hinged balance bar with rollers-stars, interconnected by a traction body with tracks.