SU406731A1 - DEVICE FOR PROCESSING OF UNSPILLED AIRTRAIN - Google Patents

Description

one

The invention relates to equipment used in the woodworking industry.

A device for processing unedged sawn timber for cutting and technological chips containing a frame, a feed mechanism and two calipers with milling cutting heads is known.

However, the poor quality of the edging of the planks leads to additional edging on stand-alone planers, resulting in a lot of waste.

The purpose of the invention is to improve the quality of the products.

This is achieved by the fact that each caliper is equipped with a grinding milling head mounted on a vertical shaft and connected to a gear with a milling cutting head. The shafts of the cutting and stripping heads are connected by a bracket that can be rotated in a horizontal plane.

FIG. 1 is a schematic diagram of the device, side view; in fig. 2 - the same, top view.

The device includes a frame 1, on which two calipers 2 are mounted, moving symmetrically relative to the machine axis along horizontal guides 3 from the hydromechanical control system depending on the width of the trimmed boards.

Each caliper has a cutting unit consisting of a cutting head 4 and a grinding cutter 5 rotating from the electric motor 6 through gears 7 and 8, whereby the heads 4 and the cutters 5 rotate at different speeds and in opposite directions.

Each cutting head is a set of two-cutting disc cutters mounted on a vertical shaft 9, and each stripping cutter is a four-blade planer head mounted on a vertical shaft 10, and it is moved relative to the head shaft on the bracket 11, which rotates about the axis of the shaft 9 when adjust to the required depth of stripping.

The board is fed by a roll system. The upper rolls 12 and 13 are presser, and the lower rolls 14 and 15 are supporting. The pressure rolls have a forced hydraulic clamp, and the command for the pressure is given after lifting the front roll 12 when it rushes onto the board.

Cutting heads 4 perform side milling with high (10–30 mm / tooth) feeds required to obtain

high-quality process chips, and

Stripping cutters - counter cutting with small (1-3 mm / tooth) feeds needed to get a high-quality finish to the edge of the board. Work head and cutter from a single drive.

The device works as follows.

The board 16 is supplied to the front rollers 12 and 14 by the worker. The upper drive roller 12 runs onto the board, presses it to the lower support rolls 14 and delivers to the heads 4, which process the bright parts of the board on chips, removed through the receiver of the pneumatic conveying system to the storage place wood chips. During the milling process, the board rests on table 17, connecting the front 14 and rear 15 support rolls.

Then the board goes to the cutters 5, each of which cleans the edge to a depth of 2-2.5 mm. Chips obtained during the stripping process are removed using a pneumatic conveying system, with process chips and

the chips are not shifted, which contributes to the improvement of the quality of the processing chips.

Installing symmetrically sliding calipers in a certain position is carried out from the control panel, depending on the width of the trim.

Subject invention

A device for processing unedged sawn timber for cutting and technological chips, including a frame, a feed mechanism and two calipers with milling cutting heads, characterized in that, in order to improve the quality of the products, each caliper is equipped with a milling head mounted on a vertical shaft and connected toothed transmission with a milling cutting head, and the shafts of the cutting and cutting heads are connected by a bracket that can be rotated in the horizontal plane .

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FIG. 2