SU1165582A1 - Line for making mouldable wooden stock - Google Patents

Abstract

1. LINE FOR MANUFACTURING WOOD-BREEDING MASS, containing interconnected conveyors for a machine for shredding waste wood, a device for applying a binder, a nounder and a packaging: -; 4: il i; 5. - (.--. machine, characterized in that, in order to reduce the consumption of binder and increase the strength characteristics of products, a device for grinding wood waste along the fibers into straws, which is installed in front of the device, is used as a machine for shredding wood waste for applying a binder, and a device for chopping straw across the fibers, which is installed between the substance and the packaging machine. 2. Line according to claim 1, characterized in that the device for grinding wood waste in widths e along the fibers on the straws are made in the form of corrugated rolls mounted one over another ®, the reefs of one CO of which are located in the hollows of the other. with .t-i /

Description

The invention relates to the field of the woodworking industry and the plastics industry and can be used in the production of wood pressing masses mainly from veneer chips.

The production line of wood pressing masses is known, which contains a crusher, an impregnating and drying unit (PSA) and transporting bodies 1.

However, this line has low productivity (about 40 kg / h), different resin content and moisture in large and small filler particles, which adversely affects the quality of the surface of the extrusions and their strength.

A line for the production of wood pressing masses is also known, comprising a machine for grinding wood waste, a binder application device, a dryer and a packaging machine 2 interconnected by conveyors.

A disadvantage of the known line is that after chopping wood, it produces particles with a specific outer surface that is very large for this type of wood composites and a significant proportion of the outer surface with cut fibers before applying the binder. This leads to increased absorption of the binder by the wood particles, to a decrease in the thickness of the binder layer covering the surface of the particles. The result is a high consumption of binder and a reduction in the quality characteristics of the compacts.

The aim of the invention is to reduce the consumption of binder and increase the strength characteristics of products.

The goal is achieved by the fact that in the line for the production of wood pressing masses, containing interconnected conveyors, a machine for shredding wood waste, a device for applying a binder, a casting machine and a packaging machine, as a machine for shredding wood waste, a device for shredding wood waste is used. width along the fibers to the straw, which is installed in front of the binder application device, and the device for grinding the dried straw across the fibers, which is set to Between the dryer and the packaging machine, and the device for shredding waste width along the fibers into straws is made in the form of corrugated rolls installed one above the other, the reefs of one of which are located in the hollows of the other.

FIG. 1 is a schematic of a line for the production of wood pressing masses; in fig. 2 - grooved rolls.

The line includes conveyor 1, device 2 for shredding waste wood along width along fibers on straw, device 3 for applying next, feeder 4, dryer 5, loading device b, device 7 for chopping straw across fibers, packing machine 8 and conveyor 9 .

A device 2 for chopping wood waste in width along fibers into straws is made in the form of rolls 10 and 11 set one above another, reefs 12

0 one of which is located in the depressions 13 of the other.

Lini works as follows. Wood waste, such as veneer strips, is conveyed by conveyor 1 to device 2 for chopping along the fibers along two corrugated rolls into straws. The resulting straw is captured by the binder application device 3, in which it is coated with the binder and fed to the feeder 4.

0 to the pitcher 5. The precipitated straw with the loading device b is fed to the device 7 for grinding across the fibers to standard sizes. The finished mass is poured into the hopper of the packaging machine 8, packaged in bags and conveyed to the conveyor 9.

5 warehouse. On this line, after the operation of grinding veneer waste in width along the fibers, the wood particles have the following dimensions: length m, width 2 mm, thickness mm

Size 0 is obtained by passing the waste of the spike through the rolls 10 and 11, and the particle size of the veneer along the width depends on the width of the reefs 12 and the valleys of the 13 rolls.

Offered production line

5 .Wood pressing masses allows

reduce binder consumption and increase

strength characteristics of the resulting

products.

W /// A

Y //// 7:

Si

u //// l

Y / w

FIG. g

Claims (2)

1. LINE FOR THE PRODUCTION OF WOOD PRESSING MASSES, containing interconnected conveyors a machine for chopping wood waste, a device for applying a binder, a dryer and a packaging machine, characterized in that, in order to reduce the consumption of binder and increase the strength characteristics of products, as a machine for chopping wood waste used a device for grinding wood waste in width along the fibers into straws, which is installed in front of the device for applying a binder, and GUSTs for chopping straw across the fibers, which is installed between the packaging machine and dryer. 2. The line along π. 1, characterized in that the device for grinding wood waste widthwise along the fibers into straws is made in the form of mounted one above another rolls of rolls, the reefs of one of which are located in the hollows of the other. SU,. „1165582 (rig. Ϊ