SU923802A1 - Apparatus for cross-cutting timber - Google Patents

Description

The invention relates to the woodworking industry and can be used in machines for transverse sawn timber.

A device for trimming lumber, containing a transverse conveyor and measuring heads [1] ·

A disadvantage of the known device for trimming lumber is that all end cuts, regardless of their length, are processed into process chips, which is not always beneficial, since the trimming from facing of boards with a length of 300 mm and more can be glued along the length.

It is also known tortsovochnaya device containing a transverse conveyor, face-aligning rollers and tortsovochny saws with a drive to lift them [2] ·

The disadvantage of this device is that when trimming pilomate2

rials are formed by face cuts, processing of which into process chips requires special cutting devices and means of transportation.

The purpose of the invention is to increase the coefficient ^of use of wood.

This goal is achieved by the fact that the device is equipped with grinding heads and position sensors, with the measuring heads installed in the direction of transverse feeding behind the pips, and the position sensors in front of the saws are connected with the lifting drive of the latter.

The drawing shows the proposed device for trimming lumber, General view.

The trimming device consists of two sections: the trimming area of the butt cabs and the trimming section of the tip ends of the sawn timber. For feeding lumber trimming device has a cross-chain conveyor 1 with stops. Butt trimming area

3 923802

the ends of the sawn timber has an end-aligning roller table 2 with an emphasis 3, a non-driving roller table 4, a position sensor 5, a lifting saw 6, a grinding head 7 and a clamping device 8. 5

The section of trimming the tip ends of sawn timber has an end-aligning roller table 9 with a stop 10, a non-driving roller table 11, measuring stops 12, a position sensor 13, a lifting saw 14, 10 a grinding head 15, and a pressing device 16.

The position sensors 5 and 13 serve as sensors of the minimum length of the face cuts intended for splicing. ¹⁵ Clamping devices 8 and 16 are used to stably hold lumber when grinding their ends. Dimensional stops 12 are designed for installation and trimming of sawn timber at a given size of 20.

The device works as follows.

Boards are individually delivered to the transverse chain conveyor 1, which feeds them to the butt-comparative roller table 2. The roller conveyor 2 moves the boards to the butt stop 3 and thereby establishes the butt of the board relative to the butt of the pipa 6 and the crushing head 30 of the 7. Then the butt trimmer if necessary, you move the board along the non-drive roller table 4 by the amount of the defective part. If the length of the defective part is greater than a certain value a, ₃₅

for example, more than 300 mm, the board, passing the limit switch 5, closes it, including the lifting mechanism of SAW 6, with which the board is trimmed. The cuts fall into the 40 hatch and are carried by a belt conveyor to the splicing area. If the end of the Defective part has a length less than the value of a, then the board passes by the position sensor directly onto the 45 grinding head 7. At the same time, the board is reliably based on the clamping device 8 and the defective part is ground into process chips.

Next, the boards arrive at the vertex butt-equating roller table 9. The roller table 9 moves the boards up to the stop 10 and thereby sets the top of the board relative to the lifting saw 14 and chops the head 15. Next, the vertex trimmer advances the board to the size of the defective part, if necessary, and then sets it along the dimensional stops 12 per size. If the length of the part of the board to be separated is greater than the value, then the board, passing the position sensor 13, closes it, including the pipa lifting mechanism 14, which is used to detach the face cut for splicing. If the length of the part of the board to be separated is less than a, then the board passes the limit switch 13 directly to the comminuted head 15.

When this board is reliably based clamping device 16 and the detachable part is ground into process chips. Folded boards are carried beyond the device limits by a belt conveyor 17.

Claims (1)

Claiming device for trimming sawn timber, containing a transverse conveyor, face-aligning roller tables and trimming saws with a drive for their lifting, characterized in that, in order to increase the utilization rate of wood, it is equipped with grinding heads and position sensors, and grinding heads are installed in the direction of transverse feeding for the saws, and the position sensors in front of the saws and are connected with the drive of the lifting of the latter.