SU1754446A1 - Wood-cutting disk - Google Patents

Abstract

Use: in the woodworking industry for the longitudinal division and trimming of edges. SUMMARY OF THE INVENTION: A wood cutting disk includes a disk case 1 mounted on a shaft 10 with 2 disk knives mounted on axles 2 on the axes 3. Between the knives on spring-loaded axes 8 in C-shaped cuts 4 with notch 5, there are mounted scraps 7. Impeller 11c spring-loaded blades mi and protrusions 13 in the process of work interacts with the axes of the 8 undercutters, producing a dynamic impact on them, due to which the undercutters 7 receive an additional impetus to the cutting force and perform an additional oscillating motion on cutting the material Ala. This allows the obstacles to be cut and the harder materials to be cut. 2 Il.

Description

The invention relates to the woodworking industry and can be used for the longitudinal division and trimming of wood material edges.

The purpose of the invention is to reduce cutting efforts and expand technological capabilities.

Figure 1 shows the cutting disc, a general view; figure 2 - section aa in figure 1.

The wood-cutting disk includes a disk case 1 with 2 replaceable disk knives 3 fixed on it on the axis x and mounted rotatably. Between the knives 3 in the C-shaped notches 4 with a notch 5, 6 are placed the cutters 7, which are mounted on the axles 8. The axes 8 are spring-loaded springs 9. The case 1 is mounted on the shaft 10. The impeller 11 is also fixed on the shaft 10, the blades of which are spring-loaded 12 are provided with protrusions 13 and

strips 14. Moreover, the protrusions 13 are arranged to interact with the axes 8 of the cutters 7 as they move along the notches 4.

In addition, abrasive elements 15 and 16 can be mounted on an elastic substrate to ensure sharpness and durability of the scissors 7 and knives 3 inside the housing 1. The abrasive elements, in contact with the edge of the cutter 7 and the knife 3, make it sharpened and refined.

The device works as follows.

Before work is started, the tension of the springs 12 is adjusted by moving the bar 14. When the tool rotates, the springs 9 are stretched and the axes 8 of the snipers 7 move along the notch 4, overcoming the resistance of the springs 12, to the extreme position. In this case, the blades of the impeller 11 are moved to the extreme left position, and

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ABOUT

then return to their place. Since the diameter of the undercutters 7 is larger than the diameter of the knives 3, they are the first to contact the sharp continuous edge with the cutting edge and form the cutting surface. In case of occurrence of an obstacle (knots, other solid inclusions) in wood or an increase in frictional forces, 8 axes

7, the springs 9 move in C-cut notches towards the center of the disk and come into contact with the protrusion 13 of the impeller blade 11. At the moment of descent of the axis

8c of the protrusion 13, the blade of the impeller 11 under the action of the spring 12 makes a dynamic impact on the axis 8, and the axis itself makes a straight (oscillating) movement along the notch 5. Thus, the cutter 7 receives an additional impetus to enhance the cutting of the material. With a further increase in friction forces in the cutting zone, the axis 8, overcoming the resistance of the spring 12, moves the impeller blade

11 and returns to the near position relative to the center of the disk. In this case, the slider 7 performs the functions of the cutting knife 3. After overcoming the obstacles, the axis 8 of the trimmer takes the initial position, i.e. closest to the periphery of the disk case 1. Diameter of replaceable knives

3 and undercutters 7 are selected depending on the thickness of the material to be cut.

Due to a significant reduction in cutting effort, the productivity of the process of dividing wood and wood materials without dividing increases. With the use of a new wood-cutting disc, material waste is eliminated. The technological capabilities of the disk make it possible to cut both thin (2-3 mm) and thick (up to 100 mm) wood materials.

Claims (1)

Invention Formula A wood cutting disk, comprising a housing mounted on a shaft with cutting knives and trimmers fixed in it, characterized in that, in order to reduce cutting efforts and expand technological capabilities, the cutting knives are made in the form of discs x in C-shaped notches made in the housing, having notches in the direction of rotation of the housing; and outside the housing, an impeller with blades mounted on the shaft is spring-loaded and provided with protrusions interacting with the axes of the cutters when and x moving along the notches. Aa fig 2