Plywood production process board internal temperature and pressure measuring and recording method and device
A technology of production process and recording method, which is applied in the jointing of wooden veneers, wood processing equipment, manufacturing tools, etc., can solve the problems of reducing production efficiency and prolonging time, and achieves convenient operation, simple structure, improved work efficiency and The effect of product quality
Active Publication Date: 2020-07-03
东营市盛基环保工程有限公司
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Problems solved by technology
[0003] In the actual pressing process, due to changes in raw materials and climate changes, it is necessary to adjust the pressing temperature, temperature and time in real time. The current common practice is to determine the process parameters based on experience, and when the change factors are not completely determined, in order to To ensure the pressing effect, most of them are controlled by prolonging the pressing time. Although the pressing effect is guaranteed to a certain extent, the production efficiency is greatly reduced due to the extension of time. , to accurately determine the optimal process parameters
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[0024] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments.
[0025] refer to figure 1 and figure 2 , a device for measuring the temperature and pressure inside a plywood during the production process, comprising an interlayer temperature measuring unit 8, a vapor pressure measuring unit 7 and a data processor 6, wherein:
[0026] The interlayer temperature measurement unit 8 is used to measure the temperature parameters between adjacent veneers 1, which includes at least one temperature sensing probe 3 (four in this embodiment) arranged between adjacent veneers 7, the temperature Inductive probe 3 is connected with the temperature acquisition module of data processor 6 by wire 2;
[0027] In-board vapor pressure measurement unit 7 is used to measure the vapor pressure parameter between adjacent single boards 1, and in-board vapor pressure measurement unit 7 includes the in-board vapor pressure acquisition h...
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The invention discloses a plywood production process board internal temperature and pressure measuring and recording method and device. The method comprises the following steps of arranging temperature and pressure acquisition points between adjacent veneers during the plywood pressing process, collecting interlayer temperature and board internal vapor pressure parameters between at least one setof adjacent veneers and recording the pressing time; collecting the pressure of hydraulic oil of a plywood hot press; establishing changing curves of the interlayer temperatures, the board internal vapor pressure and the board external pressure along with time correspondingly; selecting the time point when the board internal vapor pressure is stabilized to be lower than the external pressure afterthe interlayer temperature and the external pressure are stabilized, wherein the time interval between the time point and the pressing starting time point serves as the optimal pressing time; and determining the pressing time during actual production with reference to the standard of the optimal pressing time. Through the plywood production process board internal temperature and pressure measuring and recording method and device, the optimal pressing technological parameters of plywood can be accurately determined according to different raw materials and environment factors, and the working efficiency and product quality are substantially improved.
Description
technical field [0001] The invention relates to the technical field of plywood processing, in particular to a method and device for measuring and recording temperature and pressure inside a plywood during production. Background technique [0002] Plywood is a three-layer or multi-layer board-like material that is made of wood sections that are peeled into veneers or sliced into thin wood, and then glued with adhesives. Usually, odd-numbered veneers are used, and adjacent layers of veneers are used. The fiber directions are glued perpendicular to each other. Plywood is one of the commonly used materials for furniture, and it is one of the three major boards of wood-based panels. It can also be used for aircraft, ships, trains, automobiles, buildings and packaging boxes. A group of veneers are usually assembled and glued together according to the direction of the wood grain of adjacent layers perpendicular to each other. Usually, the surface board and inner layer board are ...
Claims
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IPC IPC(8): B27D1/04
CPCB27D1/04
Inventor 石延芳杨奠基
Owner 东营市盛基环保工程有限公司