SU818906A1 - Device for moulding and compacting particle-board - Google Patents

Description

The invention relates to a device for the manufacture of chipboards and can be used in the woodworking industry.

A device for the manufacture of 5 wood chipboards, comprising a unit for the metered supply of wood particles, a slit-like pipe, a forming section in the form of suction boxes, prepress rollers and a belt press

A disadvantage of the known device is that it does not provide good quality boards.

A device is also known for forming and compacting chipboards, including a bed with a hopper, a metered-feed and chip orientation unit, a carpet forming section, pressing rollers and a vertical 20 belt press [2].

The disadvantage of this device is the reduced tensile strength of the plates tensile perpendicular to the formation.

The purpose of the invention is to increase the strength of 25 plates under tension perpendicular to the formation.

This is achieved by the fact that the unit for the metered feed and orientation of the chips is equipped with a vibrating grate, and the vertical 30 belt press has the support plates that regulate the thickness of the wood-chip carpet, which are installed on the carpet forming section and fixed to the bed.

The drawing schematically shows the proposed device.

A device for forming and sealing wood-particle boards includes a bed with a hopper 1, a unit 2 for the metered supply and orientation of the chips, section 3 of the carpet formation, pressing rollers 4 and a vertical belt press

5. The node 2 is equipped with a vibrating grid

6, and a vertical belt press 5 — supporting plates 7 that control the thickness of the wood-shaving carpet, which are installed on the carpet forming section and fixed to the bed (not shown). The vertical belt press is equipped with a tension roller 8, a guide 9 and a saw 10.

The device operates as follows.

The wood-particle mass from the hopper 1 is fed into the node 2 on a vibrating grid 6, which ensures the orientation of the wood particles along the length of the fiber perpendicular to the continuous continuous tapes of the vertical belt press 5.

By reducing the gap between the vertical tape presses 5 and adjusting the thickness of the chipboards, the base plates 7 installed on the carpet forming section 3, the carpet is compacted, and in the section from the pressing rollers 4 to the tension rolls 8, the gap increases, which allows smooth removal elastic deformation of the chip carpet. Formed and pre-pressed chip carpet along the guides 9 is deployed in a horizontal position and cut with a saw 10 into certain blanks for subsequent pressing in a hot press (not shown).

Claims (2)

By reducing the gap between the belts of the vertical belt presses 5 and the thickness of the chipboard base plates 7 installed in the carpet formation section 3, the carpet is compacted, and in the section from the pressing rollers 4 to the tension rolls 8, the gap increases, which allows smoothly remove the elastic deformation of particleboard carpet. The formed and-pressed laminated chip carpet, along the guides 9, is rotated into a horizontal position and is cut by a slit 10 into certain blanks for subsequent pressing in a hot press (not shown). The invention of the device for forming and compaction of chipboard, including a frame with a hopper, a dosing unit AND orientation - strapping, a carpet forming section, underpressing rollers and a vertical belt press, characterized in that, in order to increase the strength of the plates during stretching, the perpendicular straight to the plate, the unit for the dosed feeding and orientation of the chips is equipped with a vibrating grid, and the vertical belt press with support for the thickness of the wood-shaving carpet installed at the site of carpet formation and fixed on the frame. Sources of information taken into account in the examination 1. USSR author's certificate number 424733, cl. B 29J 5/04, 1972. 2. USSR author's certificate number 574346, cl. B 29J 5/04, 1976. ii, li) lifiMi | i i ii | i, i, i, i {.