SU1664554A1 - Multisaw unit for cross-cutting full-length logs - Google Patents

Abstract

FIELD: forest industry. The aim of the invention is to increase productivity. The installation is equipped with an additional roller table 5, installed symmetrically to the roller table 3. The rollers of the roller tables 3 and 5 are made in the form of conical ribs 6 and 7. The rails face one another with smaller bases and have a gap H. on an individual axis, kinematically coupled to a drive that rotates pts in a vertical plane. The whips 29 are individually fed to the tapered arms of Bugs 6 and 7. They are fed the whip forward or back, and the trimming is performed by one of the saw blocks. After adjustment to the appropriate program, a whip 27 is being straightened. Booms 6 and 7 are lowered to the lower position and the sawn timber is dropped onto the longitudinal conveyor 32. 3 Il.

Description

The invention relates to the forest industry and can be used in the lower warehouses of timber industry enterprises, woodworking and timber processing plants when digging logs into assortments.

FIG. 1 shows the proposed installation, plan view; in fig. 2 shows section A-A in FIG. one; in fig. - section bb in fig. 2,

The installation includes a multi-chain transverse conveyor 2 with stops installed on the loading platform 1, reversing live rolls 3 with drive rollers and placed along the roll table 3 at a distance equal to the length of the assortment, saw blocks 4. The roll table 5 is installed symmetrically to the roll table 3 Rollers 3 and 5 are made in the form of conical bores 6 and 7. P bugs of live rolls are installed symmetrically to the longitudinal axis 8 of the roller table 3 with a gap H between them and facing one another

smaller bases. Each bucket 6 and 7 is mounted with a large base on an individual axis 9. The other end of axis 9 with bearings 10 and 11 is hinged in housing 12. At the rear end 13 of axis 9, gear 14 is fixed, interacting with another gear 15 fixed on an axis 16 located perpendicular to the axis 9. The housing 12 is hinged by means of sleeves 17 and 18 on the uprights 19. The axis 16 is hinged by means of bearings 20 mounted in the housing 12. A gear 21 is fixed at the free end of the axis 16 and interacts with another gear 22 shut up lennoy on a shaft 23. The shafts 23 are installed along the roller table 3 on both sides and are mounted on the SRI rasssto from one another, opposite gears 21, several gears 22 (the number of gears on the shafts 23 equal kolicheO

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mwu conical R bukh 6 and 7). Each shaft 23 is provided with its own drive 24 and 25. On the rear side of each case 12, the power cylinder 26 is pivotally attached. The sliding of the saw unit 4 to the whip 27 is also carried out by the power cylinder 28.

The installation works as follows.

In the initial position, the conical ribs 6 and 7 of the roller tables 3 and 5 are in position I, and the saw blocks 4 are in position II. The whips 29 are individually transversely transported by conveyor 2 onto the conical ps of Bukh 6 and 7 of roller tables 3 and 5. If necessary, the drive of transverse conveyor 2 is reversed. Drives 24 and 25 are turned on and through shaft 23, gears 22 and 21, axis 16, gears 15 and 14 and the axis 9 rotation is transmitted to the conical arms of bulls 6 and 7. With the whip 27 with conical arms of bulls 6 and 7, several are fed backward or forward, and one saw unit 4 produces, if necessary, the trimming of the whip. The operator then assesses the quality of the whip 27, sets the appropriate program and produces the cutting of the whip 27. In this case, the saws by the power cylinder 28 from position II become in position III, and after the cutting the chewing returns to position II. After cutting the whip 27, the power cylinders 26 are turned on, and the housing 12 is rotated using bearings 20 and sleeves 30 on the axis 16. The conical ribs 6 and 7 from position I are lowered down to position IV and the assortments 31 are dropped to longitudinal conveyor 32, located under the roller table 3. The gap H between the pins 6 and 7 ensures unhindered rotation of these pts.

When opening a whip (curvature, rot, etc.), the entire whip 27 is cut out immediately, and only, for example, the front part of the whip 27, and then the live rolls 3, the longitudinal part of the whip 27 is fed and finished. Cutting. The program for cutting the Khlystyv electric circuit is blocked with the corresponding power cylinders 26, therefore downward inclination is carried out on all conic ribs 6 and 7, and only those

which ensure that the assorted assortments 31 are dropped. After the assortments 31 have been dropped, the conical ribs 6 and 7 become in position I, and the cycle of operation of the plant is repeated.

During the feeding by the cross conveyor 2 of the next whip to Bukha 6 and 7 and its spreading, the sawn assortments 31 are sorted by the longitudinal conveyor 32. With a large number of sawn assortments right next to the live rolls, another sorting conveyor is installed at the same level (not shown in Fig. ), on which the longitudinal feed of the assortments is carried out. Under these conditions, the sorting of sawn woods is carried out already by two sorting conveyors.

The invention will make it possible, in addition to the traditional longitudinal movement, to carry out operations for dropping sawn logs, to shorten the full cycle of cutting the whip, and thereby increase the productivity of the plant by 22-25%. In addition, the invention will allow more fully load and use the operational capabilities of the saw blocks, which will also increase the productivity of the installation.

Claims (1)

Claims of a Multi-sawing installation for cutting logs into assortments, including a multi-chain cross conveyor installed on the loading platform, roller conveyor with drive rollers and saw blocks placed along the roller conveyor, characterized in that, in order to increase productivity, it is equipped with an additional roller conveyor with drive rollers, installed symmetrically to the first, while the rollers of the roller tables are made in the form of conical ribs, facing one another by smaller bases, between which there are the gap, and large bases fixed on the axes, kinematically associated with the common drive of each of the roller tables and with individual rotational drives in the vertical plane. frS jt 99l ± A s 27 I I7 29 Ґ / A / l and SHC-X Bb eleven FIG.