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An on-line control device for hot-pressing process of wood-based panel and online control method for hot-pressing process

A hot-pressing process and control device technology, which is applied to measuring devices, single-plate presses, and electric devices, etc., to reduce energy consumption and improve production efficiency

Active Publication Date: 2016-07-13
INST OF WOOD INDUDTRY CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the heat transfer of wood-based panels is a very complicated process, there is no theory and model that can accurately predict the internal temperature of the slab. Therefore, the online detection of the temperature of the slab during the hot pressing process can not only effectively reduce the hot pressing time , improve production efficiency, save hot pressing energy consumption, and effectively improve the quality stability of the board, especially for artificial boards such as recombined bamboo, recombined wood, container bottom boards or bamboo cement formwork manufactured by cold, hot and cold processes
However, at present, the existing wood-based panel press only monitors the temperature of the hot-pressed plate, and lacks a device that can monitor the temperature of the core layer of the wood-based panel online, and implement online control of the hot-pressing process in real time according to the obtained data

Method used

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  • An on-line control device for hot-pressing process of wood-based panel and online control method for hot-pressing process
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Embodiment 1

[0025] Embodiment 1 On-line control device and on-line control method for hot-pressing process of multi-layer hot press machine

[0026] The on-line control device for hot and cold process hot pressing process provided by the invention is composed of hot pressing system (1), hydraulic control system (2), temperature control system (3), hot pressing process operating system (4), data display (5) ), a signal amplifier (6) and a thermocouple (7), such as Figure 1-2 shown, where:

[0027] The hot pressing system (1) includes a multi-layer hot press, loading and unloading machine, backing plate return machine, hydraulic device, steam inlet and exhaust device, water cooling device, described loading machine, hot press, unloading machine, etc. The trigger and the pad return machine form a circulation system, which belongs to the prior art;

[0028] The hydraulic control system (2) is the pressure source of the hot press and the loading and unloading machine. Through three independ...

Embodiment 2

[0039] Embodiment 2 On-line control device and on-line control method for hot-press process of multi-layer hot press machine

[0040] The on-line control device for the hot-pressing process of the multi-layer hot press machine provided by the invention is composed of a hot-pressing system (1), a hydraulic control system (2), a temperature control system (3), a hot-pressing process operating system (4), Data display (5), signal amplifier (6) and thermocouple (7) form, such as Figure 1-2 shown, where:

[0041] The hot pressing system (1) comprises a multi-layer hot press, a loading and unloading machine, a pad return machine, a hydraulic device, a steam inlet and exhaust device, the loading machine, the hot press, the unloading machine and the pad Plate return machine forms a circulation system, which belongs to the prior art;

[0042] The hydraulic control system (2) is the pressure source of the hot press and the loading and unloading machine. Through three independent oil ...

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Abstract

The invention discloses an on-line control device for the hot-pressing process of wood-based panels and an online control method for the hot-pressing process. The thermocouple is implanted into the core layer of the wood-based panel slab online, and the other end is connected in series with the input end of the signal amplifier; the signal The output end of the amplifier is connected to the data display; the hydraulic control system and the temperature control system are respectively connected to the output end of the hot-pressing process operating system, and the input end of the hot-pressing process operating system is connected to the output end of the signal amplifier to form an online feedback control system. It can collect the core layer temperature of the wood-based panel in the hot pressing process online in real time, and according to the core layer temperature, the online adaptive closed-loop feedback of the hydraulic control system and the temperature control system through the hot-pressing process operating system, and then adjust the hot-pressing of the wood-based panel in real time craft. The invention realizes on-line real-time monitoring of the temperature of the core layer of the wood-based panel, helps to optimize the hot-pressing process of the wood-based panel, improves the stability of product quality and productivity, and reduces production energy consumption.

Description

technical field [0001] The invention belongs to the technical field of wood-based panels and their manufacture in the wood-based panel industry, and relates to an online control device for a hot-pressing process of a wood-based panel and an online control method for the hot-pressing process. Background technique [0002] The hot pressing of wood-based panels refers to the process of completing the board with the slab with adhesive at a certain temperature, pressure and time. Temperature is an important factor in the hot pressing process, which makes the adhesive gradually complete the curing, so that the components inside the board are glued into a whole. During the hot-pressing process of wood-based panels, the heat is transferred to the backing plate (when the backing plate is used) through the surface of the hot-pressing plate, and then the backing plate is transferred to the surface layer of the slab, and then gradually transferred to the core layer of the slab. The hot-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01K7/02G05D27/02B27D3/00
Inventor 余养伦于文吉祝荣先
Owner INST OF WOOD INDUDTRY CHINESE ACAD OF FORESTRY