SU1435433A1 - Veneer-cutting lathe - Google Patents

Abstract

The invention relates to shelling machines used in plywood, furniture and match production. The purpose of the invention is to expand the possibility of obtaining veneer from low-grade raw materials and increase the yield of high-quality veneer. The machine contains a stationary caliper 4 with a shelling knife 7 and a device for crimping veneer and a mechanism for centering, rotating and feeding the blockclock, made in the form of cylindrical rollers 9 and 10, the axis of rotation of which is parallel to the axis of rotation of the block. Cylindrical rotica 9 and 10 move in space through a system of levers 11 from a hydraulic drive. In the machine, cylindrical rollers are divided into two groups. The rollers of the first group 9, 10 rotate the block, and the rollers 17 of the second group feed the block to the caliper. At any value of the choraka diameter, the kinematics of the machine provides for the location of the touch lines between the rollers of the first group and the corack near the diametrical plane perpendicular to the feed direction of the corack, and the second group, which presses the chorack to the caliper, is suspended on arms that swing around the fixed axis, the movements of the roller are carried out in a direction along the plane passing through the cutting edge of the shelling knife and the axis of rotation of the block. 5 il. A-A (L

Description

20

four

oo ate

00

with

// /R

/ 7

The invention relates to the woodworking industry, namely to the plywood, furniture and match production.

The purpose of the invention is to expand the possibilities of obtaining low-grade raw materials and increase the yield of high-quality veneer.

On fi1. 1 shows a shelling machine, front view; in fig. 2 - section A - A in FIG. one; FIG. 3 shows the mechanisms of synchronous convergence of the rollers and feed, the initial position; in fig. 4 - the same, at the initial moment of peeling a churak; in fig. 5 - the same, in the .moment of the ending;

The shelling machine is a CTHiuiHy 1, on which the left 2 and the right 3 headstock, support 4 and mechanisms 5 and 6 are mounted, respectively, intended for the simultaneous descent of rollers of the sixth floor of the block ball.

Ma caliper fixed inert knife 7 and the clamping ruler 8.

The mechanism of 5 synchronous similarity. -Shadows of rollers, () exists yupy, the support and pentrirovaniyu churak in ra 1lnoy; the flap, non-nyrend.iruyarny to lia-the direction of yudachi churak, consists of upper-negs) 9 10 cylinders, roller rollers, the spatial changes of which are realized with the help of levers AND, the cable 1 around the fixed axes 12 and connected between each other by means of the arms 13, articulated between each other by the i4 axis, which is offset by the slider 15.

The turn of the levers 11 is discredited from | Idrotsilin.drv 16. Synchronization of the displacement of the levers 1 1 when rotated around the axis 12 is provided by manufacturing tg 13 of the same length and by moving the axis 14 of the pnr joint 13 along the plane passing through the centers of the axes 12 and the blade knife 7.

The mechanism 6, which feeds the churak to the caliper, is a drive cylindrical roller 17, sms gritted on levers 18, which oscillate around axis 19 from 1 id to 5 cylinder 20.

The rollers 9, 0 and 17 are rotated from the main shaft 21 by means of chain gears connecting the sprockets (not shown), mounted on the main shaft 21 and the axles of the rollers 9, 10 and 17. The shaft is rotating from electric motor 22. The feeding of the churaka 23 is degraded by a chain conveyor 24 driven by the motor 25.

Lunar machine works in the following way.

0

five

0

five

0

0

five

0

Churak 23 is conveyed by a chain conveyor 24, driven by a gear motor 25, into the centering zone of a shelling machine, where it is centered using rollers 9, 10 and 17, driven into rotation and fed to a fixed support 4. When the block goes in contact with a shelling knife 7 begins peeling it.

In the course of peeling, with the reduction in the diameter of the choraka, the rollers 9 and K) due to the rotation of the levers 11 around the fixed axles 12 under the influence of the cylinders 16 converge towards each other.

The lengths of the levers 11 and the position of the axes 12 are chosen so that the lines of contact of the pressure rollers to the pellet at any value of the diameter of the pellet are close to the diametrical plane perpendicular to the feed direction of the pellet. Such g (the suspension of the drive cylindrical rollers permits the wasp; it helps to create a constant mHf ix in terms of the effort required to play the fool and a constant feed force to the caliper.

Claims (1)

Invention Formula An emptying machine that includes a bed with left and right headstock mounted on it, a support with a shelling knife and a veneer crimping device, a feed mechanism, a mechanism for rotating and pressing the churaka to the caliper, a synchronous convergence mechanism for rotating rollers, and a hydraulic drive characterized by that, in order to expand the possibilities of learning sphon from low-grade raw materials and increase the output of high-quality nshon, the machine is equipped with two pairs of levers that are hinged respectively on the left to the right headstock The opposite ends of the arms of each pair are connected to each other by two pivotally articulated joints with the placement of articulation joints by means of sliders mounted on the left and right headstock guides, with a hole in the levers in which the link joint of the force lever is placed. cylinder hydraulic drive, and the mechanism of synchronous convergence of the rollers is made in the form of two rollers, which are mounted on. at the same time, the feed mechanism is made in the form of a roller resting on the pins on the pins, which are mounted on two levers rigidly connected to each other and mounted on the axis, which is fixed on the temper and the left headstock. 2 6 I I / 22 25 U lj 20 FIG. fi FIG. five N