SU1397294A2 - Apparatus for producing insulation fibreboard - Google Patents

Abstract

The invention relates to the woodworking industry and can be used in the process streams of the production of fibreboard with a wet method. The purpose of the invention is to improve the quality of the plates due to their dimensional stability. The flexible profiling elements 1 are provided, placed on their outer working sides, on the side opposite to the grid 7, with means for adjusting the density of the hollows of the profiles. Each device is made in the form of a spring 12 enclosing the profiling element and connected with it along the length of the slider 13 element. In this case, the slider is made with a leveling plate 15 fixed against its working surface and rigidly fixed between its side walls 14 of the sliders side of the nets. By reducing the density of the troughs of the slab and compacting its protrusions, its thermal insulation properties are enhanced. 4 il. i (L

Description

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The invention relates to a wood-processing industry, the leather is to be used in the process streams of the production of wood-fiber boards by a wet method and is an improvement of the device according to the author. St. No. 1235746.

The purpose of the invention is to improve the quality of slabs by ensuring their dimensional stability.

FIG. 1 shows the device, obsh, iy EZhD; in fig. 2 - profiling element at the entrance to the formation chamber, section; ka fig. 3 - the same, in the gap between the pressing shafts; on (rig. 4 - section aa in Fig. 1.

The device comprises a mass feeding unit 1, a formation chamber 2 with formation areas 3 and a carpet pressing 4.

The formation chamber is formed by perforated plates 5 and 6, on which the grids 7 are located, resting on top 8, section 9 and drive 10 dalas. On the grids there are flexible profiling elements 11, which are equipped with fittings for adjusting the depth of profiles hollows placed on their outer working ciTOpoHax. The device is made in the form of covering the profiling element 11 and connected with nanometer g (guns 12 along the length of the element of the slide 13.

The slider is provided with a profiling, e-gr of the element and a rigidly fixed between its side walls 14 of the alignment of the gland 15, and the side walls of the slider are inclined in the direction of the grids 7. The drive shafts are equipped with a hydraulic cylinder 1 | 6, mounted on the support plate 17. C1LEASE 18 is located between the drive shafts to feed the carpet to the receiving conveyor 19.

The device works as follows.

The fibrous mass from the feeding unit 1 is sent to the formation chamber 2, where the carpet structure is formed at the formation section 3, which is then compressed to the desired thickness and humidity in the section .4 of the press between the constrictor and the M-perforated plates 5 and 6 The grids 7 with a carpet located between them are driven on shafts 8 and 9 with G10MOSH. And the drive shafts 10.

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Carpet formation is carried out simultaneously with the formation of a profile on it with the help of flexible profiling elements 1. At the same time, the density of the hollows of the profile is controlled by a device placed on the outer sides of the profiling elements as follows.

At the entrance to the formation chamber by means of springs 12, a slider 13 is advanced

10 extreme position, thereby increasing the cross section or volume of the profiling element. Due to this, the inlet section of the formation chamber is reduced and, consequently, the amount of deposited fiber in the area of the hollow of the carpet profile is reduced. During subsequent pressing of the carpet, the density of the trough of the profile increases almost evenly with the density of the entire carpet. The uniformity of the pre-pressures of the carpeting profiles is ensured by an elastic leveling plate 15. -The increase in the strength of the protrusions of the carpet profile is achieved by pre-pressing them when the slider moves to the body of the profiling element and the lateral effect of the slant side walls

25 profile tabs.

The necessary pressure on the formed carpet is created by means of a hydraulic cylinder 16, and the carpet is transferred to the receiving conveyor 19 by means of slipway 18.

Thus, reduce the density

 the troughs of the profile and strengthen its protrusions, which leads to an improvement in the thermal insulation properties and an increase in the dimensional stability of the material.

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Claims (1)

Invention Formula Device for the production of insulating fiberboard according to ed. St. NO 1235746, characterized in that, in order to improve the quality of the plates by ensuring their dimensional stability, each flexible profiling element has a spring-loaded slider that surrounds it, the lateral outer walls of which form a tapering profile of the slider, skab45 a leveling plate rigidly attached to its side inner walls on which the spring rests. 35 Invention Formula Device for the production of insulating fiberboard according to ed. St. NO 1235746, characterized in that, in order to improve the quality of the plates by ensuring their dimensional stability, each flexible profiling element has a spring-loaded slider that surrounds it, the lateral outer walls of which form a tapering profile of the slider, skab45 a leveling plate rigidly attached to its side inner walls on which the spring rests. Fig FIG. ;;