Method for rapidly manufacturing recombinant bamboo

A recombined bamboo and fast technology, which is applied in the field of fire doors, can solve the problems of manual mold loading and unloading, high labor intensity of workers, and small scope of application, so as to achieve the effect of ensuring smoothness, low labor intensity of workers, and reducing health maintenance time

CN104875269AInactive Publication Date: 2015-09-02ZHEJIANG YONGYU FURNITURE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2015-09-02
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

The invention belongs to the field of fire doors, and particularly relates to a method for rapidly manufacturing recombinant bamboo, wherein the method is uniform in heating process, quick in speed and low in energy consumption. The method comprises steps of firstly, selecting bamboo wood, secondly, uniformly paving the bamboo wood and applying glue on the bamboo wood to form a bamboo plate to be pre-pressed, thirdly, pushing the pre-pressed bamboo plate into a high frequency hot press, fourthly, pre-pressing the bamboo plate to be pre-pressed, and fifthly, starting the high frequency hot press to manufacture a bamboo plate through high frequency hot pressing for 6 to 45 minutes. The high frequency hot press comprises a lower support board used for supporting a bamboo plate to be pre-pressed, an upper pressing plate used for pressing on the bamboo plate to be pre-pressed and a side pressing plate applying pressure on a side of the bamboo plate to be pre-pressed. The high frequency voltage is characterized in that the high frequency electric field can penetrate a base plate, so that the inner and the outer of the base plate can be synchronously and uniformly heated, the method is quick in speed and low in energy consumption, so the method is particularly suitable for hot-press gluing a bamboo plate with a large section.
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Description

technical field

[0001] The invention belongs to the field of fire doors, and in particular relates to a method for quickly manufacturing recombined bamboo with uniform heating, high speed and low energy consumption. Background technique

[0002] There are two traditional production methods of bamboo recombined wood: cold press forming-high temperature curing and multi-layer press hot press forming. cold

[0003] The pressure exerted on the bamboo by pressing is as high as 70MPa, and the bamboo cells are often crushed, and the curing time of the cold-pressing adhesive is as long as 10-12 hours, and the curing time after curing is more than 20 days, which requires a large production site. Cold forming uses steel molds, which are large in quantity and easy to damage, and require manual mold loading and unloading, which is labor-intensive for workers.

[0004] The maximum processing thickness of the traditional hot press is ≤36mm (heating time is up to 45min), the processing t...

Examples

Embodiment 1

[0042] A method for rapidly manufacturing recombined bamboo, is characterized in that: comprises the following steps:

[0043] 1. Select uniform bamboo;

[0044] 2. Pave the bamboo evenly layer by layer according to the required board thickness and apply glue to form a pre-pressed bamboo board;

[0045] 3. Push the pre-pressed bamboo board into the high-frequency heat press machine;

[0046] 4. Pre-press the pre-pressed bamboo board, that is, press the upper and side pressing boards of the high-frequency hot press on the upper surface and the side of the bamboo board respectively to apply pressure;

[0047] 5. Turn on the high-frequency heat press and carry out high-frequency heat pressing for 6-45 minutes to make bamboo boards;

[0048] 6. After the high-frequency hot pressing is finished, air-supply the bamboo board and let it stand;

[0049] 7. Remove the pressure on the bamboo board after the air supply is finished, that is, remove the pressure exerted on the bamboo boa...

Embodiment 2

[0063] The difference from the above-mentioned embodiment is that the bamboo board is made by high-frequency hot pressing for 45 minutes; the pressure applied by the upper pressing plate and the side pressing plate to the pre-pressed bamboo board in the step 4 is 10 Mpa, and in the step 5, the high-frequency During the hot-pressing process, the pre-pressed bamboo board was re-pressed to 14 Mpa.

[0064] In the step five, the high frequency is switched off every 2 minutes after being switched on, and the high frequency is switched on again after a 1 minute stop, and the operation is repeated 15 times.

[0065] The time for the air supply to stand still in the step 6 is 30 minutes. The spray cooling time is 20 minutes.

Embodiment 3

[0067] The difference from the above-mentioned embodiment is that: carry out high-frequency hot pressing for 30 minutes to obtain the bamboo board; the pressure applied by the upper pressing plate and the side pressing board to the pre-pressed bamboo board in the step 4 is 9Mpa, and in the step 5, the high-frequency heating During the pressing process, the pre-pressed bamboo boards were re-pressed to 12 Mpa.

[0068] In the step five, the high frequency is switched off every 2 minutes after being switched on, and the high frequency is switched on again after a 1 minute stop, and the operation is repeated 7 times.

[0069] The time for the air supply to stand still in the step 6 is 20 minutes. The spray cooling time is 40 minutes.