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Parallel on-line fuzzy adaptive glue compounding and applying control method and system for man-made board

A fuzzy self-adaptive, parallel online technology, applied in the direction of manufacturing tools, adhesive application devices, and pretreatment of molding materials, can solve problems such as poor work reliability, large system errors, and low precision of glue adjustment and control, and achieve precise control , accurate flow, and good dynamic response characteristics

Inactive Publication Date: 2008-02-27
NORTHEAST FORESTRY UNIVERSITY +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this batch-type glue dispensing process control method, the glue solution needs to be stored in batches, and the glue solution is easy to be pre-cured in advance, and the performance of the glue solution decreases, and even the failure of the glue solution due to the failure of the production line causes serious waste; batch feeding and stirring, the system error is large , the auxiliary working time is long; the sizing adopts PID conventional control, the control system has time-varying and inertial hysteresis, the sizing amount is unstable, the amount of glue is too large, the control precision of sizing is low, and the work reliability is poor, resulting in product production costs increase, decrease in quality

Method used

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  • Parallel on-line fuzzy adaptive glue compounding and applying control method and system for man-made board
  • Parallel on-line fuzzy adaptive glue compounding and applying control method and system for man-made board

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specific Embodiment approach 1

[0018] Specific implementation mode 1: Particleboard adjustment and sizing control

[0019] The control system of the present invention includes two parts: a parallel online glue dispensing device and a fuzzy adaptive control system. The parallel online glue dispensing device includes a gear pump 1, a raw glue constant temperature control device 19, a pipeline 20, a liquid level sensor 21, and N raw materials A raw material storage tank group composed of storage tanks, a stirring mechanism 15, a glue mixing storage tank 16, a weight sensor 17, a parallel glue adjustment mechanism and an online glue sizing mechanism, nozzles 18, etc. The raw material storage tank group made of stainless steel includes raw rubber storage tank 6, water storage tank 7, additive storage tank 8, curing agent storage tank 9, 4 gear pumps 1 and each of the raw material storage tank group respectively through the raw material input pipeline 20 The inlets of the storage tanks 6, 7, 8, and 9 are connecte...

specific Embodiment approach 2

[0021] Specific implementation mode 2: dry-process fiberboard first applied and then dried to adjust glue control

[0022] The control system is the same as above, and the process is as follows: First, the system transports the original rubber, water, additives, curing agent, etc. to their respective storage tanks through the gear pump, and keeps the original rubber at normal temperature (generally 20°C) by controlling the temperature adjustment device; Then the system continuously and automatically measures according to a certain ratio according to the process formula through independent metering systems such as respective pipelines, speed-regulating pumps, and flow meters. The glue mixing tank is connected to the output pipeline, and the glue is sent to the fiber drying pipeline through the speed-regulating pump and flowmeter, so as to realize quantitative and continuous online sizing of the glue according to the amount of fiber conveyed by the heat mill screw feeder; the dri...

specific Embodiment approach 3

[0023] Specific implementation mode 3: The dry-process fiberboard is first dried and then sizing and sizing control

[0024]The control system is the same as above, and the process is as follows: First, the system transports the original rubber, water, additives, curing agent, etc. to their respective storage tanks through the gear pump, and keeps the original rubber at normal temperature (generally 20°C) by controlling the temperature adjustment device; Then the system continuously and automatically measures according to a certain ratio according to the process formula through independent metering systems such as respective pipelines, speed-regulating pumps, and flow meters. The glue mixing tank is connected with the output pipeline, and the glue is sent to the fiber glue mixing machine or the drying pipeline through the speed-regulating pump and flow meter, so as to realize quantitative continuous online sizing according to the proportion of raw materials. The fiber weighing...

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Abstract

One kind of parallel on-line fuzzy adaptive glue compounding and applying control method and system for man-made board is disclosed. The control method includes: parallel glue compounding control; on-line glue applying control; glue applying amount feedback control; and glue temperature stabilizing control. The control system includes two parts: an on-line glue compounding and applying unit and a fuzzy adaptive control system. The on-line glue compounding and applying unit consists of gear pump, pipeline, glue temperature stabilizing controller, material storages, glue mixing storage, liquid level sensor, weight sensor, stirring mechanism, parallel glue compounding mechanism, on-line glue applying mechanism, and other parts connected together. The fuzzy adaptive control system is connected to the gear pump, the parallel glue compounding mechanism, the on-line glue applying mechanism and the weight sensor.

Description

Technical field: [0001] The invention belongs to a control method and a control system for adjusting and sizing processes in the production of wood-based panels (referring to fiberboards and particle boards). Background technique: [0002] There are many ways to control the gluing and sizing process in the production of wood-based panels. The commonly used method is mainly to control the gluing and sizing based on the batch sizing process. Glue mixing control is to realize the control of adding preparations (raw materials) in different proportions. Commonly used glue mixing control methods include liquid level control method, measuring cylinder detection method (volume measurement method), metering pump method, weight loss measurement method, etc. Glue sizing control is to control the ratio of wood-based panel raw materials (fiber or shavings) to the amount of glue applied, and to control the amount of glue applied. Most of the control methods use PID conventional control. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27N1/02B27G11/00
Inventor 花军曹军孙丽萍韩玉杰陈松实
Owner NORTHEAST FORESTRY UNIVERSITY
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