A hot press machine and hot press method for producing bamboo-wood composite container floor

Abstract

The invention relates to a hot press for production of a bamboo wood composite container floor. The hot press comprises a rack, a hydraulic device, a pressure bearing plate, an air pressure device array set, a hot pressing plate and a workbench. The hydraulic device, the pressure bearing plate, the air pressure device array set, the hot pressing plate and the workbench are arranged on the rack sequentially from top to bottom. The air pressure device array set is arranged on the lower surface of the pressure bearing plate. The hydraulic device drives the pressure bearing plate to move up and down. The air pressure device array set drives the hot pressing plate to move up and down. The hot pressing plate comprises an upper structure layer and a lower hot pressing plate heating layer. The workbench is arranged below the hot pressing plate. A workbench heating layer is arranged on the upper end face of the workbench. According to the hot press and hot pressing method for production of the bamboo wood composite container floor, through a two-stage type pressure-maintaining temperature-maintaining mode, a rebounding phenomenon of a composite board can be relieved effectively, dimensional deviation is reduced, and bending deformation of the composite board is reduced.

Description

technical field [0001] The invention relates to a hot pressing machine and a hot pressing method for producing bamboo and wood composite container bottom plates, belonging to the field of bamboo and wood processing. Background technique [0002] In the process of bamboo and wood processing, it is sometimes necessary to bond wood or bamboo slices and then hot press to form a composite board. The existing composite board hot pressing method is to use a hot press to heat the composite board. Generally, one-stage heat preservation and pressure preservation is adopted. method, pressurize the composite board to about 15MPa and carry out constant temperature and pressure heat preservation and pressure until the thickness of the composite board reaches the required size δ 1 After that, the pressure is gradually lowered; the composite board formed by this method is easy to rebound, has large dimensional deviation, and is easy to deform; in addition, the existing hot press usually onl...

AI Technical Summary

Problems solved by technology

[0002] In the process of bamboo and wood processing, it is sometimes necessary to bond wood or bamboo slices and then hot press to form a composite board. The existing composite board hot pressing method is to use a hot press to heat the composite board. Generally, one-stage heat preservation and pressure preservation is adopted. method, pressurize the composite board to about 15MPa and carry out constant temperature and pressure heat preservation and pressure until the thickness of the composite board reaches the required size δ 1 After that, the pressure is gradually lowered; the composite board formed by this method is easy to rebound, has large dimensional deviation, and is easy to deform; in addition, the existing hot press usually only adopts a hydraulic structure, which has a slow response speed and low pressure sensitivity, making it difficult to quickly and accurately press. pressure regulation

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