SU1497003A1 - Device for chipless cutting of wood - Google Patents

Abstract

The invention relates to forestry equipment and can be used in the forest industry. The purpose of the invention is to increase productivity by shortening the cutting cycle. The device comprises a frame 1 on which a spring-loaded carriage is mounted with the possibility of longitudinal movement. On the carriage a force cylinder of a pulsed action and two bars of 7 of the same length are hinged. The other ends of the g 7 are pivotally connected to the holder 9 with the knife 12. The knife 12 is made with an additional cutting edge 13. The rod 11 of the power cylinder is also pivotally fixed on the holder 9. The axes 6 tons of g 7 are offset relative to the axis 4 of the power cylinder. In the initial position, under the action of a charged ram cylinder, the knife 12 is away from the longitudinal axis of the device (in one of the positions shown by dash-dotted lines). In operation, the knife 12 with great acceleration, acceleration by the rod 11 of the power cylinder, cuts into the wood continuously moved by the feed mechanism 14 and moves along with it in the longitudinal direction. After cutting the wood, the knife 12 moves to the opposite side of the device, and the carriage, together with the knife 12 and the power cylinder, returns to its original position under the action of a spring. The use of the proposed device allows an increase in productivity by shortening the cutting cycle. 3 il.

Description

41

;about

about

with

figure 1

the feed mechanism 14, and moves with it in the longitudinal direction. After cutting the wood, fire 12 moves to the opposite side of the device, and the carriage along with the knife 12 and the power

the cylinder returns under the action of the spring to its original position. The use of the proposed device allows to increase productivity by reducing the cutting cycle. 3 il.

The invention relates to forestry equipment and can be used in the forest industry.

The purpose of the invention is to increase productivity by reducing the cutting cycle,

I Fig, 1 shows the proposed device, top view; FIG. 2 is the same side view; in fig. 3 is a view A of FIG. 2

The device for chipless cutting of wood includes a frame 1 on which a carriage 2 with a spring 3 is installed with possible longitudinal movement. A power cylinder is hinged on the carriage 2 with the help of axis 4. 5 pulsed action and using axles 6 two parallel rods 7 of the same length, located symmetrically on both sides of the power cylinder 5. Other ends of the rod 7 using axes 8 are pivotally connected to the holder 9, to which axis 10 is attached to the shaft 11 of the power cylinder 5, T g 7 together with the carriage 2 and the holder 9 form a hinged parallelogram. The axes 6 on the carriage 2 are displaced along the ram 5 relative to the axis 4 of its fastening. The tool holder 9 has a knife 12; provided with an additional cutting edge 13,

On the frame 1 is also fixed the feed mechanism 14, for example, in the form of a self-center of crawler-mounted track conveyors.

The working fluid in the power cylinder 5 flows through pipeline 15 from a pump (not shown) 16 - wood is cut.

The device works as follows.

The working fluid from the pump is fed through the pipeline 15 into the rod end of the power cylinder 5, the rod 11 is drawn into the interior of the power cylinder 5 (the cylinder 5 is pulsed with pulsed action) and presses

five

0

25

thirty

45

50

55

35

40

holder 9 with a knife 12. In this case, the rods 7 together with the cylinder 5 rotate at a certain angle relative to the longitudinal axis of the device, and the holder 9 with the knife 12 will move away from the longitudinal axis of the device and take one of the positions indicated by dash-dotted lines: FIG. 1, The movement of the knife 12 will be parallel to itself, and the cutting plane of the knife 12 will always be directed perpendicular to the longitudinal axis of the device. The wood to be cut 16 is moved by the feed mechanism 14 to the cutting zone. The pulsed power cylinder 5 and the knife 12 are brought into operation with great acceleration, accelerating by the rod 11 of the cylinder 5, crashes into the continuously moving wood 16.

At the moment of insertion of the knife 12 into the wood 16, he carries the carriage 2 along the frame 1 into longitudinal movement, this equalizing the speed of movement of the wood 16 and the longitudinal speed of moving the knife 12. In the process of cutting wood, the latter is kept from lateral displacement by the feed mechanism.

After cutting the wood 16, the knife 12 is moved to the opposite side of the device due to the excess energy received from the ram 5. At the same time, the latter is switched on again for charging. The knife. 12 occupied the initial position for the next reea, but only on the other side of the longitudinal axis of the device.

As soon as the knife 12 has emerged from the wood, the carriage 2 returns along the frame 1 under the action of the spring 3 to the initial position.

During the cutting process, the knife 12 oscillates relative to the longitudinal axis of the device at an angle less than 180 °, which is two times less than the movement of the knife in the known

decision cutting

This allows twice.

Claims (1)

Invention Formula A device for chipless cutting of wood, including a frame, a pulsed power cylinder with a rod, a knife and a feed mechanism, characterized in that, in order to increase productivity by shortening the cutting cycle, THAT The frame is mounted with the possibility of longitudinal movement of a spring-loaded carriage on which the power cylinder is hinged and two of the same length are parallel to one another; the knife is provided with an additional cutting edge and mounted on the holder i hinged with opposite ends of the cylinder and the shaft of the power cylinder; the hinge of the power cylinder is displaced in the longitudinal direction relative to the axes t g.