SU1532290A1 - Arrangement for feeding workpieces to wood-working machine - Google Patents

Abstract

The invention relates to feed devices for machining wood parts, which, according to the processing technology, should have different cutting conditions. The purpose of the invention is to expand the functionality of the device and simplify the design. The device includes a carriage 2 movable in guide bases 3, on the longitudinal guides 4 of which a movable plate 5 with a toothed rack 6 is mounted. It engages with a system of gears 7-11 mounted on the carriage 2. On one side of the carriage one above the other and with an offset along the carriage feed direction, the racks 12, 13, 14 are mounted for engagement with gears 9, 10, 11. The latter are mounted on the same shaft and have different diameters. The workpiece laid on the plate 5 is moved by the carriage 2 to the treatment zone. The interaction of one of the pairs: the rack and pinion gear (12-9, 13-10 or 14-11) through the gears system 8, 7 and the rack 6 causes the plate 5 to move along the carriage 2 with a certain speed. This allows in different parts of the cutting zone to have a well-defined target feed rate and to carry out a certain cutting mode. 3 il.

Description

The invention relates to feeding devices for machining parts from wood, having various surfaces to be treated, both in structure and in rock composition, and can be used in woodworking.

The aim of the invention is to expand the functionality of the device and simplify the design.

FIG. 1 shows the device, a general view; in fig. 2 shows a section A-A in FIG. in fig. 3 - the shape of the teeth in gears and toothed racks.

The device includes a drive 1 of the reciprocating movement of the carriage 2, which is movably mounted in the guide bases 3. On the carriage 2, the plate 5 is movably mounted in the longitudinal guides D with the rack 6, which is engaged with the gear system 7- mounted on the carriage 2. eleven.

Based on the side of the passing carriage 2, one above the other and with mixing along the carriage are mounted toothed racks 12-14, which interact with the corresponding gears (respectively 9, 10 and 11) as the carriage 2 moves. Gears 9-11 are mounted on one shaft and have a different diameter. The length of each gear rack as well as the diameters of the gears are selected depending on the requirements of the technology - to have a certain feed rate of the workpiece at a certain site of the machine.

The device works as follows.

The workpiece is laid down and clamped on the plate 5. The drive 1 of the carriage 2 is turned on and the latter begins to move relative to the base of the Plate 3, located on the carriage 2, also moves together with the carriage. A system of gears 7-11 mounted on the carriage 2 is driven into rotation depending on whether the gears 9, 10, or 11 currently interact with their gear rack - 12, 13, U.

Gear 9, running around relative to the rack 12, transmits rotation of gears 8 and 7. Gear 7, meshed with the rack 6 of plate 5, drives the latter in relation to carriage 2 at a speed depending on the gear ratio

gear ratios 7 and 9. After passing through the carriage 2 with the plate 5 of the section defined by the length of the rack 12, gear 9 comes out of the gearing and with further movement of the carriage 2 the gear 10 and the gear rack 13 enter into gearing. and 10

0 is another, which ensures the movement of the plate 5 at a different speed.

After the passage of the carriage 2 with the plate 5 of the toothed rack 13 from gearing with it goes gear 10, and

5 during further movement of the carriage 2, gear 11 and gear rack 14 are engaged. The gear ratio of gears 7 and 11 provides the required speed of movement of the plate

0 5 on this site. As a result of the fact that the plate 5 is moving relative to the carriage 2, in the interval from the extreme left position of the carriage 2 to its extreme right position, the blank

moves at different speeds in different parts while moving carriage 2 at a constant speed. As soon as the carriage 2 comes to its extreme position, a command is given to turn on the drive and on the return stroke, while the carriage 2 and the plate 5 return to the initial position. Reverse carriage 2 travels faster

than a worker.

I

In general, the device is characterized by simplicity, reliability, compactness and safety in operation, while providing wide functionality to the machine feed mechanism,

n on which it will be installed.

Claims (1)

Invention Formula A device for feeding parts into a 5 woodworking machine, including a base, a carriage, a gear rack and a drive, characterized in that, in order to expand the functionality of the P device and simplify the design, it is equipped with a movable plate that is mounted on the carriage by means of longitudinal directions , but ; a rack-and-pinion gear is made in the form of a series of toothed racks and a system of gears, with one of the toothed racks mounted on a movable plate and the others mounted on the base I on one side of the carriage one above the other. 0 1 Strung away Editor N. Gorvat Compiled by A. Bapin Tehred M. Khodanich Proofreader O. Kravtsova Order 8045/22 Circulation 452 VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5 Thebes Subscription