RU2560992C1 - Device for cutting wood with cylindrical saws - Google Patents

Abstract

FIELD: woodworking industry.

SUBSTANCE: device comprises a frame, a hollow cylindrical saw, an electric drive of cylindrical saw rotating, a saw locking mechanism using rubber-coated rollers, mechanism of the table adjustment in height relating to the saw position, splitting blades, a guide ruler, and a mechanism of automatic feeding. Driving of the cylindrical saw is carried out through the pinion engaged with the saw web through the holes on its surface. The location and shape of the holes on the web of the cylindrical saw correspond to the parameters of the pitch and the tooth shape of the driving gear. The driving gear is located on the same shaft with the roller fixing the saw at the inner surface, and the driven pulley of the belt transmission of the electric drive of the saw rotation. Additional fixing of the saw is carried out by the rollers located on the outer surface of the saw and having the ability of movement relative to the saw web in the radial and tangential directions.

EFFECT: reduced metal consumption of the device and power consumption of the sawing process.

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Description

The invention relates to the woodworking industry, mainly to woodworking equipment, and can be used for the manufacture of building and decorative finishing materials from wood.

From the current level of technology there is a machine with a cylindrical saw, used for longitudinal sawing of wood into convex-concave (cylindrical) riveting. The cylindrical saw of the machine is a thin-walled metal cylinder, which is tightly worn at one end on a metal circle rigidly connected to the working shaft parallel to the axis of the saw cylinder [1].

The disadvantages of this machine are the lack of the possibility of continuous sawing of wood and the manufacture in this connection of the final product with limited geometric parameters.

Closest to the claimed technical solution is a machine for separating wooden parts into separate channel-shaped elements [2]. The machine consists of three parts: loading, cutting and unloading. The cutting part consists of a bed, four hollow cylindrical saws arranged in a row with the possibility of rotation. The saw is fixed using three internal unregulated rollers and two external pressure rollers, which tension the drive belt. The rotation of the saws is carried out from electric motors through belt drives. The belt passes through a groove made on a canvas of a hollow cylindrical saw. This machine design is taken by us as a prototype.

The disadvantages of this technical solution are the increased metal consumption of the machine and the energy consumption of the sawing process due to the use of large thickness saws, due to the presence of a groove for drive belts on their surfaces.

The task to which the invention is directed is to reduce the metal consumption of the device and the energy consumption of the sawing process while expanding the geometric parameters of the resulting building and decorative finishing materials from wood.

This problem is solved due to the fact that the drive of the cylindrical saw is carried out through the gear, which is engaged with the saw blade through holes on its surface, while the location and shape of the holes on the blade of the cylindrical saw correspond to the pitch parameters and the shape of the tooth of the drive gear; the drive gear is located on the same shaft with a roller fixing the saw from the inner surface and the driven belt pulley of the electric drive of rotation of the saw; additional fixation of the saw is carried out by rollers located on the outer surface of the saw and having the ability to move relative to the saw blade in radial and tangential directions.

In FIG. 1 shows the design of mechanisms for fixing and driving a cylindrical saw device; figure 2 shows the appearance of the device.

The device for longitudinal cutting consists of a hollow cylindrical saw 1, fixed from the outside and inside by rubberized rollers 2, the rollers are mounted on the device bed 3, the roller located on the inside of the saw is on the same shaft with the drive gear 4 and driven pulley 5, on which, through the drive belt 6, torque is transmitted from the electric motor 7 of the rotary drive of the cylindrical saw, the proppant knives 8, the mechanical height adjustment system of the table 9, the guide bar 10, the removable table cover 11, sys emy automatic document feeder 12.

The device operates as follows: when the electric motor 7 is turned on, the rotation through the drive belt 6 is transmitted to the driven pulley 5. The driven pulley is located on the same shaft with a roller 2 that fixes the saw from the inside and a drive gear 4 engaged with the blade of the cylindrical saw 1 through special grooves on its surface. As a result of which the rotation of the cylindrical saw 1. The hollow cylindrical saw is additionally fixed using rollers located on the outer surface of the saw and able to move relative to the saw blade in the radial and tangential directions. The table height relative to the cutting tool is changed using a mechanical table adjustment system 9. To prevent the cutting tool from being clamped, proppant knives are installed after the saw 8. The material to be sawn on the table is guided by a ruler 10. The material to be sawn can be delivered using an automatic feed system 12. In order to change the hollow cylindrical saw, it is necessary to remove the removable table cover 11, loosen the clamps rolls fixing the hollow cylindrical saw from the outside, remove the cylindrical saw, replace it, if necessary, adjust the position of the rollers located on the outside of the cylindrical saw 1, and tighten the clamps.

Using the invention will allow to reduce the metal consumption of the design of the device and the energy consumption of the sawing process in the production of building and decorative finishing materials from wood with expanded geometric characteristics.

Information sources

1. Strezhnev V.M. Production of sawn rivets / V.M. Strezhnev. - M.: Gizmestprom, 1946.- 101 p.

2. Machine for dividing wooden parts into individual channel-shaped elements: Pat. 3556178 A USA: IPC B27B 5/00 / IPC B27B 5/12 / Witschnig Walter - No. 3377758; declared 07/09/1968; publ. 01/19/1971.

Claims (1)

A device for cutting wood with cylindrical saws, comprising a bed, a hollow cylindrical saw, an electric drive for rotating a cylindrical saw, a mechanism for fixing the saw with rollers, for example rubberized, a table height adjustment mechanism relative to the position of the saw, wedging knives, a guide ruler and an automatic feed mechanism, characterized in that the drive of the cylindrical saw is carried out through the gear, which is meshed with the saw blade through holes on its surface, while the location and The holes on the blade of the cylindrical saw correspond to the pitch and tooth shape of the drive gear, the drive gear is located on the same shaft as the roller fixing the saw from the inner surface and the driven belt pulley of the electric drive for rotating the saw, additional fixing of the saw is carried out by rollers located on the outer surface of the saw and having the ability to move relative to the saw blade in the radial and tangential directions.

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