SU1093495A1 - Apparatus for grinding round wooden articles - Google Patents

Abstract

DEVICE FOR POLISHING ROUND-SECTION PARTS FROM WOOD, containing. a bed, a rotating hollow rotor with spring-loaded rocker arms, layers, grinding tools and a drive and pressure rollers system, characterized in that, in order to increase machining performance, spring-loaded rocker arms are hingedly mounted with the ability to shuffle, play and fix on the circular directions put into the device mounted on said rotor in a plane passing through its axis. (L 14 from 00 to 01 Figure 1

Description

FIELD OF THE INVENTION The invention relates to a machine tool industry, in particular to grinding wood parts. A device is known for grinding roundwood sections of wood, containing a bed, a vras, an empty hollow rotor with spring-loaded rocker arms, flooring, grinding tools, and a system of drive and pressure rollers Ij The known device allows machining parts, but the tool life is low. The processing is carried out in a narrow section of the tape and is large, it does not take part in the work. This deficiency is usually eliminated by the introduction of an oscillating motion of the instrument. However, for a known device in which the tool performs planetary grounding, the insertion of an oscillation drive entails a considerable complication of the design and an increase in the mass of the rotor. The purpose of the invention is to increase processing performance. The goal is achieved by the fact that in a device for grinding round-shaped parts made of wood, containing a bed, an accruing hollow rotor with spring-loaded rocker arms, layers, grinding tools, and a system of drive and pressure rollers, spring-loaded rocker arms are hingedly movable and fixed on the inserted into a device of circular guides fixed on said rotor in a plane passing through its axis. FIG. 1 shows the scheme of the proposed device; in fig. 2 is a view A of FIG. 1. The device comprises a table 1, a fixed 2 and an adjustable 3 guides, feed rollers 4 with bis asterisks driven through chain 6 and an asterisk 7 on the output shaft of the gearbox 8 from the electric motor 9, pressure rollers 10, each of which is mounted on the lever 11, with the spring 12 up to the stop in the limiter 13. The connecting rod 14 and the cranks 15 form a spherical parallelogram held in the initial position by two opposing springs 16 with adjusting screws 17. The parallelogram is carried by a hollow vrashayushchy rotor 18 consisting of gears and 19 with a central hole for the passage of the parts 20 and the guides 2 and 3, which engages with the gear 21, sitting on the shaft of the electric motor 22, 1; 14 and 14 to the rotor 18 on the circular guides 23 pivotally, with the cart. Movement and fixation are available; rocker arms 24 are attached, pressed by springs 25 to limiters 26. Grinding tools 27, mounted on shafts of electric motors 28, are mounted on rocker arms 24. Rings 29 are mounted to the electric motors on the tongue 14. and on the rotor there are brushes 30. For ease of servicing the device, the circular guides 23 can be provided with a dial to read the angle of rotation of the axes of the grinding tools, and the rocker arm 24 with indicators. The device works as follows. On table 1, part 20 is fed between guides 2 and 3 to rollers 4 and 10, which push it between grinding tools 27, rotating from electric motors 28 around their longitudinal axis and performing planetary rotation together with rotor 18 from electric motor 22. Contact of tools with product is provided by springs 25, and automatic tracking of the curvilinear profile is the swinging of the connecting rod 14 with the rotor 18 and the grinding tools 27 on the cranks 15. At the end of processing the finished product with the last sections of clamping and The water rollers are fed to the hopper. When rotating the grinding axes of the tools at an angle to the direction of movement of the part 20, it becomes possible to use the entire area of the abrasive cloth on the grinding tools without the use of special mechanisms that axially feed the grinding tools during processing. At the same time, when the axes of grinding tools are rotated, the area and length of the contact of the grinding cylinders with the workpiece increase, thereby increasing the amount of wood removed per unit of time when grinding. Installing grinding tools at an angle to the direction of movement of the parts due to cutting at an angle to the direction of the fibers increases the cutting performance, which allows for faster moving of the part during grinding and increases processing performance without compromising the quality of grinding.

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Claims (1)

DEVICE FOR GRINDING DETAILS OF ROUND SECTION FROM WOOD containing. a bed, a rotating hollow rotor with spring-loaded rocker arms carrying grinding tools and a drive and pinch roller system, characterized in that, in order to increase processing productivity, the spring-loaded rocker arms are pivotally mounted with the ability to move and fix onto circular guides inserted into the device mounted on the specified rotor in a plane passing through its axis.