SU1192982A1 - Device for cutting off knots from felled trees - Google Patents

Abstract

SETTING FOR CUTTING SUCHIEVS FROM FALSE TREES, containing cross-cutting mechanisms and tree rotation, gripping mechanisms in the form of swivel clamps with a cutting edge and a cutting device along its entire length, which is different in that The shape of the individual sections, which are sequentially arranged along the length of the row, are spring-loaded in the - vertical plane, the knife of each section is also spring-loaded and in the horizontal plane, and each section. the cutting body is equipped with a probe, on which a spring-loaded washer is rigidly fixed, freely mounted on the knife guide.

Description

The invention relates to the forest industry and can be used to cut branches from fallen trees.

The purpose of the invention is to improve the quality of pruning of knots.

Figure 1 shows one section of the cutting body of the installation c. the moment of contact of the probe with the knot; figure 2 the same, at the time of starting the knot pruning. 1O The installation contains mechanisms for the transverse movement and rotation of trees (not shown); gripping mechanisms made in the form of rotary clamps 1, and a cutting device in VI-15 de sequentially located along the length of a number of spring-loaded sections.

Each section consists of a movable 2 and a fixed 3 buildings. A knife 4 20 σ ′ of guide 5 and a probe 6 are mounted in a movable case. A spring 7 is put on the guide 5 and a washer 8 is freely mounted, which is rigidly fixed to the probe 6.

In the initial position, the knife is set 25 so that its cutting edge is offset relative to the vertical axis passing through the geometric axis of the tree.

A spring-loaded stem 9 mounted in a fixed corsus is attached to the movable housing 2. To fix the knife at the initial moment of cutting the knot, an emphasis 10 is intended, the beams 11 serve as guides for rolling * _{35 of the} treated wood onto the conveyor, and before processing the tree is on the transverse beams 12.

Installation works as follows.

Trees are fed to a cutting device. Another tree, located on the transverse beams 12, is captured by the rotation mechanism and fed into the zone of the knife 4 to the stop in the rotary clamps 1, previously installed with the help of hydraulic cylinders in the initial position. After that, the clamps are closed, clasping the tree.

When the tree rotates along arrow A, the oncoming branch rests against the probe 6, which, moving along arrow B with the help of washer 8, compresses the spring 7, the action of which on the knife stops. Continuing the movement, the branch rejects the knife 4 freed from the action of the spring to the vertical plane I-Ι, while the knife guide 5 reaches the stop 10. With further rotation of the tree, the branch is cut off, its action on the probe stops, and under the action of the compressed spring 7, the knife returns to the starting position. After processing the tree, the clamps 1 open, the tree is freed from gripping the rotation mechanism and rolls along the beams 11 onto the receiving conveyor. Next, the cycle repeats.

The proposed design of the cutting body promotes high-quality pruning of knots on trees with a curved geometric axis.

VNIIIPI 'Order 7214/17

Circulation 475 Subscription

Branch of PPP Patent,

Uzhhorod, Project 4,

Claims (1)

INSTALLATION FOR CUTTING OF JOURNEYS FROM BURNED TREES, containing mechanisms of lateral movement and rotation of trees, gripping mechanisms in the form of rotary clamps with a cutting edge and a cutting device along its entire length, characterized in that, in order to improve the quality of cutting of knots, the cutting device is made in the form of individual sections arranged in series along the length of a row of spring-loaded in the vertical plane, the knife of each section is also spring-loaded in the horizontal plane, and each section. the cutting body is equipped with a probe, on which a spring-loaded washer is rigidly fixed, the knife guide loosely mounted on it.