Hydraulic press for multi-layer bamboo wood integrated material

Abstract

The invention relates to a hydraulic press for a multi-layer bamboo wood integrated material, in particular to hydraulic press equipment. The hydraulic press equipment comprises a hydraulic press and a high-frequency generator, wherein the hydraulic press comprises a rack, a base, a hydraulic cylinder, a pressure head, a template, a die cavity and a shielding plate, and multiple layers of heating electrode plates are arranged in the die cavity and comprise multiple layers of first heating electrode plates and multiple layers of second heating electrode plates; the multiple layers of first heating electrode plates comprise a fixed heating electrode plate arranged at the bottom of the die cavity, and multiple layers of movable heating electrode plates arranged on the fixed heating electrode plate, and the multiple layers of heating electrode plates are connected with a first output end of the high-frequency generator in parallel; the multiple layers of second heating electrode plates are the multiple layers of movable heating electrode plates, and each layer of second heating electrode plate is arranged between the first heating electrode plate at the upper side and the first heating electrode plate at the lower side; and the multiple layers of heating electrode plates are connected with a second output end of the high-frequency generator in parallel, and a processing medium is arranged between the first heating electrode plates and the second heating electrode plates. In the hydraulic press, an insulating plate does not need to be arranged at the bottom of the die cavity, the positive pressure of the hydraulic press can be improved, the heating speed is fast, and the heating can be uniformly carried out inside and outside, the multi-layer high-density bamboo wood integrated material can be pressed once, and the processing efficiency and the product quality can be improved.

Description

Technical field: [0001] The invention relates to hydraulic press equipment, in particular to a high-frequency heating hydraulic press used for processing bamboo and wood composite materials. Background technique: [0002] It has been nearly 30 years since the research, development and application of bamboo and wood recombined glulam in our country. A whole set of processing equipment and processing technology have been successfully developed one after another. Using my country's rich fast-growing forest species bamboo and fast-growing poplar to recombine and process quality Excellent structural materials have greatly alleviated the shortage of forest resources and the tense supply and demand of timber in my country. [0003] Most of the processing methods of existing bamboo and wood recombined integrated materials are cold pressing method, which first breaks bamboo and wood into thin bundles, then sizing, molding, pressurizing, clamping, drying, and demoulding. The disadvant...

AI Technical Summary

Problems solved by technology

The disadvantages of this cold pressing method: one is that the thin bundles of chilled bamboo and wood fibers are not heated and softened, and the affinity is lacking, so it is difficult to process them into high-density materials, and the blanks are easier to crack; , resulting in long production cycle

[0004] There are still many shortcomings in the disclosed bamboo-wood recombined lumber high-frequency heating hydraulic press and bamboo-wood material processing method, mainly, the existing high-frequency heating hydraulic press is provided with a non-grounded electrode plate at the bottom of the mold cavity, so that the mold A thicker insulating plate must be installed under the electrode plate at the bottom of the cavity, and the insulating plate made of non-metallic material is extremely weak against pressure, so it affects the pressure strength, and because of this, the existing high-frequency heating hydraulic press has a low pressure bearing capacity. Only one layer of integrated material can be pressed, and multiple layers cannot be successfully pressed at one time, resulting in low production efficiency

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