SU895658A1 - Planing and shaping machine - Google Patents

Description

(54) PLANING AND FORMING MACHINE

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The invention relates to machines for the production of wood-based panels and can be used in the woodworking industry.

Known planer forming machine, including the feeder cutting knife and heated plates 1.

The disadvantage of this machine is the impossibility of processing low-grade starting veneer due to the fact that during sheet cutting all sheet defects appear on the formed shield, although in slightly different sizes depending on the width of the strips.

A planer forming machine is also known, which includes mechanisms for feeding, cutting, shaping and heated plates 2.

The disadvantages of the machine are frequent wrinkles of the veneer strips in the gap between the heated plates and low productivity.

This is due to the fact that when planing a package assembled from low-quality veneer, separate narrow strips (chips) of the veneer appear, which create significant additional resistance to pushing the formed veneer strips of the carpet into the gap between the plates. The purpose of the invention is to improve the quality of the formation of a continuous layer of veneer strips and increase productivity.

This is achieved by the fact that the machine is equipped with two belt conveyors, the working branches of which are located between heated plates, and the drive of the conveyors is provided with a slip clutch for adjusting the torque.

15 The drawing is a machine tool, general view.

Planing forming machine contains drive 1, made in the form

2Q crank mechanism. The cutting mechanism includes a knife yoke 2 with a knife 3, a skid 4 and a latch 5, a carriage 6 with a clamp 7.

Claims (2)

25 In addition, the device has a support wall 8, a lifting table 9 with a lifting mechanism 10. The shaping mechanism includes a carriage 11 with a pusher 12 and a flag 13, a stopper 14. The machine also contains correcting 15 cutting mechanisms and guides 16 of the shaping mechanism, two conveyor 17, heated plates 18, gear unit 19 on the leading drums of the conveyors and driven by a slip sleeve 0 or zero. The machine works as follows. The veneer assembled in the bag is installed on the table 9 and secured with the clamp 7. The bag is positioned like this This means that the veneer fibers are directed along the cutting edge of the knife 3. Thereafter, the package is shrunk by pulling the carriage b onto knife 3, which cuts off a layer of strips of a certain width. The pusher 12, mounted on the carriage 11, the movement of which is coordinated by the movement of the carriage 6, at the moment of the cut-off of the last strip, comes with its protrusions into the grooves of the supporting wall 8, jumps off from the skid 4 and starts the working stroke. The latter consists in pushing the cut layer into the gap between the knife head plate 2 and the stop 14, thereby forming the cut layers in a continuous carpet that is pushed into the sizing unit. When the carriage 11 is idling, the pusher 12 moves over the shearing layer of veneer, bearing the flag 13 on the skid 4. When the carriage 6 is idling, table 9 is raised to the thickness of the layer being cut. At the end of the working stroke of the pusher 12, the latch 5 is activated, preventing the backward movement of the forming carpet under the action of elastic forces of the compressed material. During pushing the carpet by the pusher 12 in the gap between the belts of the conveyors 17, it is heated due to the heat supplied through the belts of the conveyors from heated plates -18. A certain torque is applied to the drive drums of the conveyors 17 by a slip clutch actuator 20 through a gear block 19. The torque value is determined based on the conditions of the conveyors 17 immobility during idling of the pusher 12 and their movement at the required compression of the carpet during the working stroke. The veneer package can be assembled from dry veneer sheets with glue applied to them, and then when heated in the gap, the material is glued, or from raw veneer, and then cut layers are dried in heated plates. Claiming machine, including feed, cutting, shaping and heated plates, characterized in that, in order to improve the quality of formation of a continuous layer of veneer strips and increase productivity, the machine is equipped with two belt conveyors, the working branches of which are located between heated plates The conveyor drive is provided with a slip clutch for torque control. Sources of information taken into account during the examination 1. USSR author's certificate No. 106078, cl. B 21 C 1/04, 1960. 2. Authors certificate of the USSR 431003, cl. B 27 C 1/00, 1972 (prototype).