SU827021A1 - Device for working stubs - Google Patents

Description

The invention relates to mechanisms for cutting stumps into parts and can be used in the forest industry.

A device for cutting stumps is known, including a frame with guides, a carriage with a pressure plate, a knife head, and a carriage displacement drive [1].

A device for cutting stumps is also known, including a frame, a carriage with a pressure plate, a knife head, a movable 10 knife and a counter knife [2].

A disadvantage of the known devices is low productivity, because the idle speed of the pressure plate is not used in the technological cycle of cutting stumps. fifteen

The disadvantages also include additional labor costs for the preliminary separation of the rod roots.

The purpose of the invention is to increase productivity. 20

This is achieved by the fact that the movable knife is mounted on the carriage, and the counter-knife is mounted on the frame.

In FIG. 1 shows a device for cutting stumps, side view; in FIG. 2 - then 25, top view.

The machine for cutting stumps includes a frame 1 with longitudinal beams 2 having guides 3, a carriage 4 with a pressure plate 5 and a knife head 6. Moving the carriage 4 in the guides 3 is carried out by a power cylinder 7. Scissors consisting of a counterknife 8 are mounted on the machine and a movable knife 9. In FIG. 1 shows an embodiment with the placement of the counter-knife 8 and knife 9 in a vertical plane. However, the knives can be mounted horizontally. The counter knife 8 is fixedly mounted on the longitudinal beam 2 of the frame 1 in the holder 10. The movable knife 9 is fixed in the holder 11 at the edge of the carriage 4. The counter knife 8 and knife 9 are mounted parallel to the speed vector of the carriage 4. The frame 1 can be mounted on a wheeled chassis 12.

The device operates as follows.

The next stump with the manipulator (not shown) is laid between the pressure plate 5 and the knife head 6. When the power cylinder 7 is pulled out with the pressure plate 5, the stump is pushed onto the knife head 6, with the knives of which the stump is cut into pieces, then the next stump is captured by the manipulator and placed the root root between the counter-knife 8 and the movable knife 9. When moving the carriage 4 by pulling the rod of the power cylinder 7, the counter-knife 8 and the knife 9 are closed and the root root from 827021

4 is cut from a stump. Similarly, if necessary, the lateral roots that interfere with the stump laying in the machine are separated. After separation of the roots, the stump is fed to the knife head 6 and is pressed through with a pressure plate 5.

The invention provides pruning of the roots at the stumps during idling of the pressure plate 5. To cut the prepared stumps after trimming the roots from them, a small distance is required between the cutter head 6 and the pressure plate 5. Therefore, the working and idle speed of the pressure plate 5 will be less than those known productivity is more. In addition, the possibility of trimming the side roots at the stumps makes it possible to reduce the distance between the longitudinal beams of 2 machines. All this helps to reduce the size of the device /

VA in length and width and can reduce its metal consumption.

Claims (1)

Claim A device for cutting stumps, including a frame, a carriage with a pressure plate, a knife head, a movable knife and a counter knife, characterized in that, in order to increase productivity 10, the movable knife is mounted on the carriage, and the counter knife is mounted on the frame.