RU1813636C - Modular cylindrical cutter - Google Patents

Abstract

Usage: in the field of wood processing with a cutting tool for profile milling of surfaces. SUMMARY OF THE INVENTION: A cylindrical pre-cutter comprises a housing 1, integral with it a flange 2, a volumetric flange 5 mounted between the flanges 2 and 5 with the possibility of moving the separation discs 3 and 4, on both sides of which parallel grooves are made. The grooves of one side of the disk are perpendicular to the grooves of the other side. Disks 3 and 4 are placed on the housing 1 relative to each other by the sides having similar grooves in the arrangement (in a mirror image). Their other sides face the flanges 2 and 5, on which grooves are made, similar to the grooves of these sides. Knives 6-8 are installed in pairs in the gaps between the disks 3 and 4 and the flanges 2 and 5 and are fixed respectively in the grooves. The edges of the cutting edges of the middle knives 7 in the cutting plane are overlapped by the edges of the edges of adjacent knives b and 8, and the profile of the cutting edges of adjacent knives 6,7 and 8 within the milling width has a variable configuration. 12 ill. S-S ate with

Description

The invention relates to the field of wood processing with a cutting tool and can be applied to profile milling of surfaces.

The purpose of the invention is to expand operational capabilities and improve the quality of the cut.

Figure 1 presents a General view of a cylindrical precast cutter with side knives; figure 2 is a General view of the cutter with middle knives in plan; in Fig.3Z cutter, view A in Fig.1; figure 4 - cutter, section bB in figure 1; figure 5 - mill, section bb in figure 2; figure 6 - separation disk, in plan; 7 is a separation disk, side view; on Fig - removable flange of the housing, a view in plan; figure 9 is a removable flange of the housing, side view; in FIG. 10 left knife in the plan from the sharpening side; figure 11 is the middle knife in terms of sharpening; in Fig.12 - the right knife in terms of sharpening.

The cylindrical prefabricated cutter contains a housing 1 made in one piece with the flange 2, movable dividing disks 3 and 4 and a second removable flange 5 mounted and fixed on the housing 1 and placed in the gaps between the flanges 2 and 5 and the left and right disks 3 and 4, middle 7 and right 8 knives.

On both sides of the disks 3 and 4, grooves 9 and 10 parallel to each other are made, the grooves 9 of one side of the disks 3 and 4 being perpendicular to the grooves 10 of the other side. Disks 3 and 4 are placed on the housing 1 relative to each other by sides having similar grooves 9 and 10 (in a mirror image), and their other sides are facing flanges 1 and 5, on which grooves 11 and 12 are made, similar to grooves 9 and 10 these parties. Grooves 9, 10, 11 and 12 at the edges are open by gaps 13, 14 and 15.:. The knives 6,7 and 8 below the cutting edges 16, 17 and 18c of the two sides have a gap of 19. The left knives are installed in the grooves 9 and 1.1 and the gaps 13 and 14 of the disk 3 and the flange 2. The middle knives 7 are installed in the grooves 10 and 9 and the gaps 13 of the disks 3 and 4. The right knives 8 are installed in the grooves 10 and 12 and the gaps 13 and 15 of the disk 4 and the flange 5.

A set of knives 6,7 and 8, disks 3 and 4 and a flange 5 on the housing 1 through a washer 20 with a nut 21 are pressed against the flange 2. To transfer torque from the housing 1 to the knives 7,8 and 9, the disks 3 and 4 and the flange 5 fixed on the housing 1 by means of screws 22 installed in bosses 23, 24 and 25, made in one piece with discs 3 and 4 and flange 5. A set of knives 6,7 and 8 forms

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a profile of the cutting edges of the cutter, moreover, to exclude gaps of the untreated surfaces, the edges of the cutting edges 26 of the middle knives 7 in the cutting plane are overlapped by the edges of the edges 27 and 28 of the left 6 and right 8 knives.

A cylindrical precast cutter operates as follows.

Depending on the desired profile of milling along the contour and width, by replacing, partially or completely replacing and excluding from the cutting process (lowering) the knives 6,7 and 8 form the contour of the milling profile. Taking into account the direction of rotation of the drive clockwise or counterclockwise, knives 6,7 and 8 with cutting edges 16, 17 and 18 are installed in the grooves 9, 10, 1.1 and 12 and the openings 13,1.4 and 15 of the disks 3 and 4 and the flanges 2 and 5 towards or against milling feed. After adjusting the take-off of knives 6,7 and 8 relative to the axis of the cutter with nut 21 through washer 20, they are crimped by discs 3 and 4 and flanges 2 and 5.

An example of profile milling of window or door frames.

In the grooves 9, 10, 11 and 12 of the flanges 2 and 5 and the disks 3 and 4, left knives 6 with straight cutting edges 16 are installed, middle knives 7 with radial cutting edges

17 and right knives 8 with cutting edges

18 with bevels towards the middle knives 7.

Using the template or sample, the milling depth for each type of knife 6,7 and 8 is determined and the corresponding exhibition of their departure relative to the axis of the cutter is produced. The exposed overhang of the knives is fixed in the grooves 9, 10, 11 and 12, and the whole set of knives 6.7 and 8 and discs 3 and 4 are clamped with a nut 21.

The milling cutter is mounted in the milling device. The drive is turned on, and along the side guides of the table of the device, a corresponding wooden blank of rectangular cross section is fed into the cutting zone. The desired profile is obtained at the exit from the cutter.

The proposed cylindrical precast mill in comparison with the prototype has the following advantages:

increases operational capabilities due to the fact that the cutting edge is formed from interchangeably re-adjustable elements - knives and the end opening of the side knives;

improves the quality of milling by changing the direction of milling - towards and against the feed;

simplifies the assembly of the cutter due to the fact that the assembly is safe and reduces to the simple installation of knives in the open grooves of the flanges and.

disks and fasten them with one element - a nut. -.

Claims (1)

Formula of the invention A cylindrical assembly cutter comprising a housing with flanges mounted on it and knives installed between them, characterized in that, in order to expand operational capabilities and improve the quality of the cut, it is equipped with spacer discs mounted on the housing with the ability to move between the flanges, on both parallel grooves are made on the sides of the discs, with grooves on one side of the disc 0 perpendicular to the grooves of the other side are located and the disks are placed on the case relative to each other by sides having similar grooves, and their other sides are facing flanges on which grooves are made similar to the grooves of these sides, the knives are mounted in pairs in p & & between the blades and flanges and are fixed respectively in the grooves, while the edges of the cutting edges of the middle knives in the Cutting Plane are overlapped with the edges of the edges of adjacent knives, and the profile of the cutting edges of adjacent knives within the milling width has a variable configuration. fi.2