CS247491B1 - Anti-noise telescopic cover - Google Patents

Abstract

The solution concerns the telescopic noise control cover and reduces the noise of conveyor belts woodworking and woodworking systems machines · The cover consists of several sliding parts and its essence is that the solid with one pair of prismatic pulleys (3) to prismatic conveyor lines (2) (1) and one pair of rams (3) to the straight lines (2) of the first part (5) and the third part (7) is slidably supported by one a pair of prismatic pulleys (3) on the prismatic conveyor guides (2) and one a pair of prismatic pulleys (3) on the prismatic guides (2) of the second telescopic part (6) cover (4), taking on the rear face the first part (5) and the second part (6) are provided by a stop (9) and a third part (7) by a holder (8). Punching finds its application mainly in woodworking industry.

Description

The present invention relates to a noise-proof telescopic housing and to a reduction in the noise level of conveyor systems for woodworking and woodworking machines.

Recently, when the performance of woodworking and woodworking machines has increased significantly by the sharp increase in cutting speeds, the noise level has also significantly increased in these workplaces. Salting is an adverse effect, which also causes the noise of the machine to be partially solved by the processing of long material. The processed long material forms a sound bridge which spreads excessive noise even outside the machine housing and adversely affects the overall noise level of the workplace. The sound bridge is a 12 to 15 dB increase in the noise level of the machine's external noise shield in the 500 to 2000 Hz range.

This situation is sometimes solved by firmly covering the infeed conveyors, which causes many operational disadvantages due to poor access to the conveyor. Another solution is to build oversized cabins, which, however, are expensive to handle and require a large work area when processing long material.

The above-mentioned drawbacks are overcome by the anti-circular telescopic cover according to the invention, consisting of several sliding parts, characterized in that the first part of the telescopic cover is slidably supported by prismatic pulleys on the prismatic conveyor guide; and one prismatic roller spring for prismatic and first part guide, and the third part is displaceably supported by one pair of prismatic pulleys on the prismatic guide of the second telescopic housing part, the rear part having the first part and the second part provided with a stop and the third part holding.

The first part, the second part and the third part of the telescopic cover are provided on the inner part with a soundproofing layer attached to the perforated sheet.

The advantages of the noise protection telescopic cover are manifested both by the reduction of the noise level and by the fact that the cover can be moved away from the machine and the necessary inspection, cleaning and the like can be performed after the holder has been moved.

The accompanying drawings show schematically an exemplary embodiment of a telescopic housing according to the invention, in which Fig. 1 is a front view and Fig. 2 is a side view.

The telescopic cover 6 consists of a first part 6 provided with two pairs of prismatic pulleys J, a second part 6 provided with two pairs of prismatic pulleys and a third part 2 provided with two pairs of prismatic pulleys J. The first part ^{38 has a} second prismatic guide 2 arranged on the outer , the top side.

At the rear faces ^{8 of} the first part 3 of the second part 6 is a third stop 3 to ⁸ part 2 is provided on the rear face eighth prism guide bracket 2 also has a conveyor J · 3 3θ first part slidably mounted on the two pulleys prismatic prismatic guides 2 of the conveyor J., the second part 6 is displaceably supported by one pair of prismatic pulleys 2 on prismatic guides 2 of conveyor J. and one spring of prismatic pulleys 2 on prismatic guides 2 of the first part 2 and third part 2 is displaceably supported by one pair of prismatic pulleys ^{88 of} prismatic guides 2 of the conveyor J. and one pair of prismatic pulleys J on the prismatic guides 2 of the second part 6. The individual parts 3, 2, 1 of the telescopic cover 1 are provided on the inside with an insulating layer 10 attached by perforated sheet.

By means of the holder 8, the telescopic cover 8 is attached to a machine (not shown). The maximum extension of the telescopic cover is defined by £ 3 stops the first part ⁸ of the second part 3 £ .In the embodiment is cut teleskopickým.krytem £ quadratic embodiment can also be circular wherein the prismatic rollers 2 ⁸ prismatic guide 2 will be spaced apart by 120 °. At the inner length of the material to be processed, the telescopic cover 6 will be made in several parts. The invention finds application especially in the wood industry.

Claims (2)

Noise-proof telescopic cover consisting of several sliding parts, characterized in that the first part (5) is slidably mounted by prismatic pulleys (3) on the prismatic guides (2) of the conveyor (1), the second part (6) is slidably supported by one pair of straight rollers (3) on prismatic guides (2) of the conveyor (1) and one pair of prismatic pulleys (3) on prlsmatic guides (2) of the first part (5) β the third part (7) is displaceably supported by one pair of prismatic pulleys (3) on prismatic conveyor guides (2) and one pair of straight rollers (3) on prismatic guides (2) of the second part (6) of the telescopic cover (4), with a first part (5) and a second part (6) provided at the rear face a third stop (9) and grooves (8). The acoustic telescopic cover according to claim 1, characterized in that the first part (5), the second part (6) and the third part (7) of the telescopic cover (4) are provided with a soundproofing layer (1β) attached to the perforated sheet (11). ).