SU117585A1 - Double disc sawing machine for cross-cutting of large and small wood - Google Patents

Description

A two-blade sawing machine for cross-cutting of large-sized and then-commercial wood is known, using two twin swinging balancing saws located in one PLOSKTSTY, I have, MX each separate self-driving drive. The described double-disc saw; a saw saw of the same purpose allows automatic sawing a cut of wood without auxiliary spinning

For this purpose, the machine is equipped with a movable frame rigidly connected with balancing saws, moving along arcuate bed guides and telling the saws a new movement along the arc of a circle, which provides for trimming the sections that are not finished with first sawing.

In order to increase productivity and the ability to cross-cut thin wood, to work each balancing saw, the machine used two independent streams of transport devices, through which small logs are fed to balancing saws.

FIG. 1 shows a diagram of the machine with the initial position of the balance saws; in fig. 2 is a section along AA in FIG. one; in fig. 3 is a view along arrow L in FIG. 2; in fig. 4 is a diagram of the machine with the position of its parts at the time of the end of sawing wood; in fig. 5 - scheme of cutting wood.

Inside the frame / machine, a movable frame 2 is placed, on platforms 3 of which balancing circular saws 4 are mounted, paired and located in the same plane and having each self-contained drive. In the vertical walls of frame 1 there are arcuate guides 5, the inner edges of which are along a profile and correspond to arcs of circles drawn from the geometric center of the log of the largest diameter.

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On axis x 6, mounted in frame 2, four rollers 7 are mounted in pairs on the swing bearings, which can move in guides 5, as a result of which frame 2 receives a swinging motion.

Each of the assemblies of the balancing circular saws 4 consists of a shaft 8 (on which the saw is attached) rotating in the support 9, mounted on one arm of the rocker arm 10. The other end of the rocker arm 10 in the support // // is fixed on the shaft 12, which is also the swing axis of the shaft 1S | Sla and shaft drive rotation of the saw. The shaft 12 is mounted in bearings of the bracket 13 fixed on the cantilever (with respect to the frame 2) site 3, on which the electric motor 14 is located, connected through the coupling 15 to the shaft 12. Transmission of rotation from the shaft 12 to the shaft 8 is performed via a belt drive 16 The belt is tensioned by a tension roller 17 mounted on the rocker arm 10. The saw blades 4 are moved onto the sawn wood by the rods of the swinging cylinders 18 mounted on the uprights 19. The position of the hydraulic cylinders 18 and their stroke rods provide the thrust of the saws and their return, as during the separate work of saws on sawing small diameter logs, and when they work together on sawing large logs. In order to give the console portions of the pads 3 of greater rigidity, they rest on the bracket 20, mounted on the axles 6. On the upper horizontal wall of the bed 1 there are two ribbed rollers 21, which guide the movement of the log when it is fed to the saw blade.

The swinging of the frame 2 is carried out by a rod of the oscillating hydraulic cylinder 22 mounted on the frame. The rod of the hydraulic cylinder 22 passes through a slot in the upper wall and is mounted on the axis 6 of the roller 7.

Sawing large-sized wood (logs) is as follows. In the initial position (Fig. 1) the frame 2 is held by the rod of the hydraulic cylinder 22, and the saws occupy the position /. When the logs are fed along the rollers 21 for cutting, both saws simultaneously make a cut, and the saws are pulled over by the hydraulic cylinders 18 rods before the saw // position, in which the saws do not reach a distance of 20-25 mm from each other. Further advancement of the saws towards each other is limited by stops (not shown in the drawing), one of which is equipped with a limit switch for the cylinders 18 for advancing the saws and the hydraulic cylinder 22 for swinging the frame.

In the // - // // position, the saws are cut as shown in FIG. 4 shtrikhovkoy.

When the hydraulic cylinders 22 are turned on, the frames 2 together with the saws receive a rocking motion moving on the rollers 7. When the right pair of rollers approach the shaped ends of the guide saws, the centers of which move along arcs of circles, the saws occupy the /// position and saw through the section shown double shtrikhovkoy (Fig. 5). In this position, a small area in the form of a rhombus remains shown, which is shown completely blackened.

Upon further movement under the influence of the rod of the hydraulic cylinder 22, the frame 2 forces the right pair of rollers to enter the shaped end of the guides. The frame 2 and the saws rotate around the axes of the left pair of rollers in the direction of arrow B (Fig. 4), the saws are in position IV, and the left saw cuts through the remaining diamond-shaped section.

At the end of the cross-cut, the resetting is performed using the rods of the hydraulic cylinders 18 and 22, and the return of the frame 2 and the retraction of the saws can be combined, i.e., performed simultaneously.

In the case of sawing small logs, the cut is made with one saw, the right saw (see Fig. 1). The left-hand saw can be turned on for self-cutting work on the cutting of a small log. For this, the machine is additionally supplied with another pair of guide rollers 23 and a second set of conveyors for feeding logs for cutting and selecting sawn assortments.

1 Double-disk saw machine for cross-cutting of large-sized and fine-sized wood using two paired swinging balance saws located in one plane, each having an independent drive, characterized in that in order to be able to automatically carry out saws with a full cut without auxiliary cranking , the machine is equipped with a movable frame rigidly connected with balance-saws, nepej moving along the arc-shaped bed guides and telling the saws a new movement along Uge circumference obespeiivayuschee unfinished first trim kerf areas.

2B of the machine according to claim 1, in order to increase productivity and enable the cross-cutting of fine wood to work each balancing saw separately, two independent streams of transport devices along which small logs are fed to the balancing saws.

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FIG. 2 Arrow view