SU1724455A1 - Wood-working machine tool - Google Patents

Abstract

Use: production of lumber mainly in the form of sleepers and bars. SUMMARY OF THE INVENTION: The machine comprises pulleys, a saw blade 15, a guide for the saw blade, a feed mechanism with tilting jaws, a control system and drives. The saw blade 15 is provided with incisors 19 on the lower edge of the blade and debarking incisors 18 on the upper edge of the blade. Moreover, the width of the working part of the debarking incisors is less than the width of the working part of the incisors at the lower edge. The guide is made of a composite of the upper 22 and lower 23 slats of the one-piece and is movably mounted on the uprights 24. 1 Cp f-ly, 2 ill.

Description

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The invention relates to the timber and woodworking industries, specifically to band sawing machines for the production of lumber, mainly in the form of sleepers and bars.

The purpose of the invention is the expansion of technological capabilities.

Figure 1 shows a woodworking machine; in Fig.2 - section aa in Fig.1.

The woodworking machine contains horizontal saw pulleys 1 and 2. a band saw 3, a guide device 4 for a band saw 3, a manipulator 5 containing a beam 6 with brackets 7 and 8, turning clamping mechanisms 9 and 10 with clamps 11 and 12, horizontal 13 and vertical 14 rods of hydraulic cylinders for moving the manipulator 5, the electric drive of the band saw and the hydraulic actuator of the manipulator (the latter are not shown).

The band saw 3 contains a saw blade 15c of the upper 16 and lower 17 edges and cutters 18 and 19 mounted on the outer side 20 of the saw blade 15. With its inner side 21, the saw blade 15 faces the slider side guides 22 and 23 of the guide device 4. The latter contains racks 24, on which a housing 26 with slider-slider 22 and 23 is mounted by means of rollers 25. Slider-22 strap has an upper edge 27 on which a pointed visor 28 is mounted, which contains an edge 29 and an outer surface 30.

The band saw 3 is equipped with chippers 18, which are placed on the upper edge 16, and they are made with a smaller width b of the working part than the width L of the working part of the cutters 19 on the lower edge 17. The cutters 18 and 19 can be executed as left and right -shaped items.

The upper edge 27 of the guiding device 4 is mounted at the level of the upper edge 16 of the band saw 3, and the edge 29 of the visor 28 is at or below the front edge 31 of the debarking cutters 18. The side cutting edges 32 of the debarking cutter 18 face the manipulator 5.

The visor 28 is installed along the entire length of the guide device 4, with its external surface 30 located at an acute angle to the plane of the saw blade 15 ..

The processed timber 33 is fixed in the clamps 11 and 12.

Woodworking machine works as follows.

The processed timber 33 is installed in the swing-clamping mechanisms 9 and 10 and clamped by its clamps 11 and 12, which are driven by a hydraulic drive (not shown). The hydraulic actuator by means of horizontal 13 and vertical 14 rods of the hydraulic cylinders provides the supply of timber 33 to the band saw 3, which is driven by the electric actuator. Timber 33 is served so that the debarking cutters 18 of the band saw 3 are embedded in the surface of the timber for the thickness of the bark (as shown in FIG. 2). The hydraulic system of turning the clamps 11 and 12 is turned on. In this case, the timber 33 is rotated in the direction of the arrow in FIG. 2. In one revolution (with a considerable thickness of several turns), debarking cutters 18 cut the bark from the surface of the timber: the debarking of the timber is carried out.

After that, the vertical rods 14 are moved and the timber 33 is lowered below the lower edge 17 of the band saw 3. By moving the horizontal rods 13, the timber 33 goes under the band saw 3 and feeds it upwards with the manipulator 5. At the same time the wood 33 advances onto the band saw 3, which, with its incisors 19, performs sawing. Timber 33 interacts with the sidewall 23 and shifts the guiding device 4 upwards. When lifting timber 33, the cutters 18 fall into the kerf formed by the cutters 19. However, the cutters 18 do not interact with the walls of the sawn timber, since the width b of their working part is less than the width bi of the working part of the cutters 19.

After the cut is completed, the timber 33 is lowered. The manipulator 5 is moved horizontally by the thickness of the product towards the band saw, and the cycle is repeated. The pivotal clamping mechanisms 9 and 10 allow the wood to rotate 90 or 180 °, making it possible for the machine to produce sawn timber in the form of planks, bars and sleepers.

The proposed technical solution allows for both debarking and sawing wood on a single unit. This expands the technological capabilities of the equipment, eliminates the need to use debarking and shpalopravochnyh machines, increases the specific productivity of the equipment, contributes to the reduction of production space.

Claims (2)

Claim 1. Woodworking machine, including pulleys with a horizontal band saw, equipped with cutters on the bottom edge, a guide, placed on the inside of the band saw, feed mechanism with tilting jaws, a control system and drives, characterized in that expansion of technological capabilities, the band saw is equipped with debarking blades placed on the upper edge ke saw on its outer side, the guide is made integral of the upper and lower planks, respectively, the upper and lower edges of the saw and set movably on racks. 2. Machine according to claim 1, characterized in that the debarking saw blades are L-shaped, the side cutting edges of which are facing the feed mechanism, and the width of their working part is less than the width of the working part of the cutters on the lower edge.