SU655525A1 - Timber-turning arrangement - Google Patents

Description

one

The invention relates to the timber and woodworking industry and can be used for reversing assortments from a multi-sawing chewing plant.

A device for reversing assortments is known, comprising a drive feed conveyor, a box-type receiving table with an upper and a lower window, an inclined reversal platform and a mechanism for withdrawing assortments 1.

A disadvantage of the known device is the unreliability of operation and low turn efficiency.

The purpose of the invention is to increase operational efficiency and ensure operational reliability.

This is achieved by the fact that the inclined turn platform is installed with an additional inclination in the transverse direction, and its lower edge adjoins the upper window of the receiving window, which is angled to the supply conveyor, and oppositely directed pushers with a drive are installed along opposite sides of the lower windows of the receiving table, in this case, a feed conveyor drive is used as a drive for the tappets, which is connected with the tappets by means of a linkage-rod mechanism.

FIG. 1 shows a device for turning, a general view; in fig. 2 - the same plan view; in fig. 3 - section A-A of FIG. 2; in fig. 4 - section bb FIG. 2; in fig. 5 shows a kinematic drive circuit of the tappets in three positions.

The device comprises a cross feed conveyor 1 of a multi-saw installation, for example, a slasher, with a drive shaft 2 on which drive sprockets are mounted. The device also contains an inclined reversal area 3, in the transverse section 5, made stepwise, with the steps having a triangular profile.

The inclined platform is installed with an additional inclination in the transverse direction.

Lower edge of the inclined reversal

Claims (2)

The pads 3 are supported on the receiving table 4 of the box section, which is located above the external sorting conveyor 5. In the upper 6 and lower 7 planes of the receiving table 4, windows are cut: the upper windows 8 are located at a certain angle to the longitudinal axis of the external sorting conveyor 5, and the lower 9 perpendicular to the longitudinal axis, with the lower edge of each step of the inclined pivot pad 3 being one of the lateral sides of the upper windows 8, and the number of steps of the inclined pivot pad 3 and the number of pairs of upper and lower windows n 4 of the table corresponds to the maximum number of cut out on Gang installation assortments. Between the upper and lower planes of the receiving table 4 along the opposite sides of the lower windows 9, pushers 10 are installed in pairs with a drive from a connecting rod-connecting mechanism. The drive of the pushers includes shafts 11 mounted along the sides of the receiving table 4 and connected to the pushers 10 by means of the wings 12. The lever system 13 connects the shafts 11 to each other in such a way that they are simultaneously rotated at the same angle, but in opposite directions. The pushers 10 are driven through the lever system 13 and the shafts 11 directly from the drive shaft 2 of the feed conveyor 1 of the multi-blade installation. A crank 14 of a hinged four-ryster is mounted on shaft 2, on a connecting rod 15 of which there is a point M, the trajectory of which in a certain section is an arc of a circle. Therefore, the link 16 of the hinge four-piece, rigidly mounted on the shaft 11, in this part of the movement of the point M remains fixed. Pushers 10 are also stationary during this period, which ensures guaranteed loading of assortments through the upper window 8 onto the lower plane 7 of the receiving table 4. While the M point passes the rest of the trajectory, the link 16 rotates at an angle selected on the basis of the stroke of the pushers 10 and returns to the starting position. The drive of the pushers by means of a rocker mechanism from the drive shaft of the feed conveyor ensures their synchronous operation with the feed conveyor of the assortments from the multisaw installation. In order to ensure reliable dumping of assortments, the receiving table is equipped with flanges 17, located along one of the lateral sides of the upper windows 8, and flanges 18, located between the planes of the receiving table 4. The device operates as follows. The assortments 19 sawn on a multi-sawing unit are fed by a transverse conveyor 1 onto an inclined reversing platform 3, each assortment being transferred to its own level of a platform having a triangular profile in cross section. This profile ensures that when the assortments move along it, the separation of their ends and the fall of each of the assortments through its window 8 in the upper plane of the receiving table onto the lower plane 7 of the receiving table. The proposed kinematics of the drive of the pushers allows them to remain stationary in the initial position for about a third of the feed cycle time of the assortment, which is quite enough for normal loading. After the assortments fall on the lower plane (bottom) 7 of the receiving table 4, the pushers move the conveyor 1 by means of a kulisatatun mechanism and move progressively towards each other, affecting the opposite ends of the assortment. Under the action of applied forces, the assortment is unrolled and falls through the lower window 19 onto the belt of the external sorting conveyor 5. At the moment of reversal of the assortment, in order to avoid its face displacement, the trajectory of movement of the ends is limited by the flanges 18. Then the pushers return to their original position and the cycle is repeated. Claim 1. A device for turning assortments, including a drive feed conveyor, a box section receiving table with an upper and a lower window, an inclined turn platform and a mechanism for assortment of assortments, characterized in that, in order to increase work efficiency and ensure operational reliability, the inclined turn platform installed with an additional inclination in the transverse direction, and its lower edge is adjacent to the upper window of the receiving table, which is located at an angle to the input transport an orter, with oppositely directed pushers with a drive, installed along opposite sides of the lower windows of the receiving table. 2. A device according to claim 1, characterized in that, in order to ensure the synchronous operation of the pushers with the feed conveyor, a feed conveyor drive is used as the drive of the pushers, which is connected to the pushers by means of a sliding rod mechanism. Sources of information taken into account in the examination 1. Zalegaller B. G., Lastochkin P. V. Mechanization and automation of work in timber depots. M., “LP, 1965, p. 152-154, p. 42. fur. four ten at 6 -W fS ////////////////////// / fJiujOMeHfje 4