SU109016A1 - A machine for bending steamed wooden elements, for example, backs, elbows, flanks and similar parts of bent furniture - Google Patents

Description

The known machine for bending the steamed wooden elements with the extrusion at the end of the workpiece and crimping it across the fibers using a pressing roller installed at a constant distance from the template, the axis of which is stationary on the machine, has the disadvantage that the workpiece receives significant deformations , in a number of cases, leading to spalling of wood along the convex side.

In the proposed machine design, wood pressing across the fibers is performed by a template moving in directions parallel and perpendicular to the workpiece. However, the use of the pressing roller is eliminated and the process of pulling the workpiece through a constant Ieli is replaced by rolling the workpiece with a template, which should reduce the degree of deformation of the workpiece.

The drawing shows the general vi, t of the proposed machine.

The bending of the wooden element (blank) / is carried out on the proposed machine by running it on the rotary pattern 2. The blank / is laid in the tires 3 on the machine table. The axis of rotation of the device 2 is fixed on the caliper 4, which is under the operation of i-thrust actuator 5, in conjunction with which it moves in the direction of perpendicular to the outer workpiece. The slide calipers are rigidly connected to the longitudinal slide 6, which is movable by means of a pneumatic (or hydraulic) drive 3 direction, parallel, 1nol1 to the workpiece. The rotation of the template 2 around the axis 7 is accomplished by the action of the gear sectors coupled to the fixed rails 8. The tire in which the workpiece is seated is attached to the pattern 2 by the end and the other end to the body 9a of the cylinder 9, the piston rod W // of which is end face emphasis 12 for the workpiece. The cylinder 9 is made movable with the help of the cylinder 13 and the lever system 14. as a result of which the face pressure on the workpiece and the tire are interconnected.

Air from the main line through Kpaif 15 enters the cavities A of cylinders 9 and 5. At the same time, movement of cylinder 9 is reported, which provides tension: SHIN1 3 and pattern 2 towards the workpiece /, thus accomplishing iodopressing the workpiece across the fibers by pressing it to the table. At the same time, the air from the valve 15 enters the oil tank 16 and displaces oil in the cavities A of the cylinders .9 and 17. At the same time, the protrusion // mixes the end stop 12, compresses the preform / along the fibers. The piston of the cylinder 17 communicates the movement of the caliper 6 in the direction parallel to the workpiece /. This movement causes the template 2 to rotate around axis 7 under the influence of the toothed sectors coupled to the fixed rails 8. When rotating the template 2, running of the pre-pressed across the fibers and compressed along the fibers of the workpiece around the template 2 occurs, and hence the bending of the pre-steamed preparation.

P 1 e d mete and g about e and e li

:., 1. Machine for bending the Hbix wooden parquet elements, for example, backs, elbows, bars, etc. The details of bent furniture, by running the workpiece with a rotating template with pressing it across the fibers and compressing along the fibers, distinguished by that, in order to prevent significant deformations on the convex surface of the workpiece, the template is made movable both in a direction parallel to the axis of the workpiece fixed on the table for carrying out running, and in a direction perpendicular to the workpiece for using the same pre-pressing template across the fibers by pressing it onto the table.

2. The form of the machine according to claim 1, characterized in that the axis of rotation of the template is placed on a support under the influence of a pressure actuator and movable in a direction perpendicular to the working surface of the table, along the guides located on another support, movable in the direction of the axis of the workpiece, laid on the table.