SU990506A1 - Apparatus for cutting wooden articles - Google Patents

Description

(54) DEVICE FOR CUTTING SQUARES

The invention relates to woodworking production, mainly to the production of furniture.

A device for cutting dowels is known, which includes a hopper, a drum, a grooved mechanism for clamping blanks and a cutting tool placed inside drum G.

A disadvantage of this device is the need to supply dimensional workpieces, poor quality and possible malfunctions when hit by a curved workpiece, the complexity of setting the cutting tool due to the unevenness of its wear.

It is also known a device for cutting the dowels, including a frame, with side guides, a base with a rotary ring cage with upper and lower grooves, a fork, a cutting tool, a guide with an aperture adjustable in the vertical plane with an aperture, a mechanism for holding the workpieces, and a mechanism for removing the non-dimensional blank C2J,

A disadvantage of the known device is the complex structure and the low quality of the cut.

The purpose of the invention is to simplify the design and improve the quality of the cut.

This goal is achieved by the fact that the fork in the cutting zone is made in two different radii, with the larger radius equal to the inner radius of the upper and lower grooves of the ring casing, and the smaller radius is made in the middle of the fork and equal to 1 adius of the cutting tool; on a smaller radius of 10 usu, equal to or greater than the length of the circumference of the workpiece, and the cutting tool is located inside the annular cage.

FIG. 1 depicts the proposed

15 device incision; in fig. 2 — a clamping fork with a cutting tool and a spring for holding the workpiece; in fig. 3 - the device, top view; on 2Q of FIG. 4 - cutting tool at the time of completion of the cut; in fig. 5 shows a mechanism for holding the blank, ensuring the removal of unmeasured blank, section A-L in FIG. 3,

Dowel cutter

25 consists of a frame 1 with lateral stops 2 on which the stops 3 are fixed, the base 4 is located with the annular casing 5 and the guide is fixed in a vertical plane

Claims (2)

30 6 with a hole 7 for the exit of the finished dowel 8 and a hole 9 for removing the unmeasured billet 10, in the area of which the mechanism for removing the unmeasured billet 11. is fixed. rigidly mounted on the frame of the fork 15, made in the front part with a twofel radius - larger, equal to the inner radius of the upper and lower grooves of the ring casing, and smaller, located in the middle of the fork and equal to the radius of the cutting tool 1 6, which is inside the fork and communicates through the pulley 17 with the engine 18, is carried out through the workpiece 19 by the return spring 20. A fork portion, made along the specified radii, has a notch 21, and a portion of the fork after a smaller radius has a bevel 22, made at the top lower part. The fork 15 has a mechanism for holding the workpiece 23. The device operates as follows, When the engine 18 is turned on through; the pulley 17 is driven by the cutting tool 16, when the engine 14 is turned on by the gearbox 13 and the pulley 12 is driven by the ring holder 5. In the course of movement of the ring holder 5, the workpiece 19 attaches a fixed fork 15, having a notch 21 on the top and bottom. when the workpiece enters a larger one for mounting 15 with notch 21, an annular holder with base 4, gearbox 13 and engine 14 moves a little with, spring 20 is compressed and workpiece 19 is clamped between annular holder 5 and fork 15 with notched 21, and rotation 3 begins preparation. Upon further movement of the ring cage, the workpiece touches the cutting tool 10 and cutting begins. Then, the workpiece runs over a part of the fork, made along the radius of the cutting tool and contacting in the grooves of the yoke. In this area, equal to or greater than the circumference of the workpiece, there is a complete rotation of the workpiece, cutting off the workpiece and final removal of the chamfers, after which the finished dowel falls into the hole 7, because due to the bevel 22 it is not retained by the fork, and the workpiece is held by the holding mechanism 23 the spring 20 expands the ring ring 5 with the base 4, the gear 13 and the engine 14 returns to its original position until the stops 3, and the cycle repeats. The workpiece under its own weight falls until it stops in a vertical-adjustable guide 6. If the length of the workpiece is longer than the finished dowel, then with further movement of the workpiece more than the length of the finished dowel, with further movement the workpiece is held by the unmeasured workpiece removal mechanism 11. If the workpiece is not dimensional, those. Since the length of the dowel, it falls through the hole 9. The proposed device is convenient to use, simple in design and provides high quality of dowels, which significantly affects the quality of the manufactured furniture. Claiming device, for cutting dowels, including bed frame with side guides, rotary ring base with upper and lower grooves, fork, cutting tool, vertically adjustable guide with hole, work holding mechanism and non-dimensional workpiece removal mechanism characterized by that, in order to simplify the construction and improve the quality of the cut, the fork in the cutting zone is made along two different radii, and the larger radius is equal to the inner radius of the upper and lower points The ring of the ring cage, and the smaller border is made in the middle of the fork and is equal to the radius of the cutting tool, while the length of the fork section, made along a smaller radius, is equal to or greater than the circumference of the workpiece, and the cutting tool is located inside the ring cage. Sources of information taken into account in the examination 1. The author's certificate of the USSR 763Q85, cl. B 27 B 5/02, 1977. 2. Authors certificate of the USSR 580115, cl. B 27 C 7/00, 1976 (prototype).