CN202448195U - Microwave preheating device for thin fiberboards - Google Patents
Microwave preheating device for thin fiberboards Download PDFInfo
- Publication number
- CN202448195U CN202448195U CN2011204847678U CN201120484767U CN202448195U CN 202448195 U CN202448195 U CN 202448195U CN 2011204847678 U CN2011204847678 U CN 2011204847678U CN 201120484767 U CN201120484767 U CN 201120484767U CN 202448195 U CN202448195 U CN 202448195U
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- microwave
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- fiberboards
- preheating device
- cavity
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Abstract
A microwave preheating device for thin fiberboards comprises microwave magnetrons, a microwave resonant cavity, an infrared thermometer, a microwave suppressor, maintenance ports, a board blank conveying belt, fiberboard blanks and a rolling machine. The microwave magnetrons are uniformly distributed in an array form along the length and width direction of the microwave resonant cavity, the infrared thermometer is connected with a microwave magnetron bus, and the microwave suppressor is mounted on a cavity body of the microwave resonant cavity. By the aid of the microwave preheating device for thin fiberboards, the initial temperature of the board blanks before entering the rolling machine is increased from the room temperature to 70-90 DEG C, production efficiency and productivity of the thin fiberboards can be remarkably improved, internal bonding strength of the fiberboards is improved, and product quality is improved.
Description
Technical field
The utility model relates to the wood-based plate manufacturing technology field in the timber industry, is specially a kind of thin fibre board microwave preheating device.
Background technology
Fiberboard is a kind of wood-based plate of at first being introduced to the market by the U.S. latter stages year in last century 60, because that it has a material source is extensive, and advantage such as product surface is smooth, and machining property is good and the industries such as furniture manufacturing, interior decoration that are widely used.At present, fiberboard has become most active plate kind in China's three big plate kinds (glued board, fiberboard, particieboard), and its annual production has broken through 4000 ten thousand steres.The fiberboard thin plate generally is meant the fiberboard of thickness less than 5mm, and its hot-forming section is adopted rolling process usually.In the production process of thin plate; Almost without exception all be to adopt the secondary wind pressure fan that dried fiber is delivered to the fibre metering storehouse; Again through machinery, vacuum is mated formation and the preformer pre-molding after be delivered to roll squeezer through belt conveyer, the fiberboard that under certain temperature (150-180 ℃) and pressure (2.5-3.5MPa) condition, fibre mat is solidified into to have certain intensity.Fiber send, mat formation through secondary wind, moulding, when being transported to roll squeezer through belt conveyer again, its temperature has been reduced to room temperature.Can infer, in hot press, will temperature low slab like this be heated to 150-180 ℃, need long hot pressing time, have a strong impact on the production capacity and the product quality of hot press.
The utility model content
The purpose of the utility model is the deficiency that overcomes prior art, and a kind of thin fibre board microwave preheating device is provided, and before solving fibre mat entering roll squeezer, initial temperature is low, and the required roll-in time is long, and production efficiency is low, the defective that the adhesive state of cure is not high.This device has simple in structure, and firing rate is fast, and the slab interior temperature distribution is even, the handling safety characteristic of simple.
A kind of thin fibre board microwave preheating device; Comprise microwave magnetron, microwave cavity, infrared temperature measurement apparatus, microwave TVS, access hole, slab conveyer belt, fibre mat, roll squeezer; Said microwave magnetron is array-like along the length of microwave cavity and width and evenly distributes; Infrared thermometer links to each other with the microwave magnetron bus, and the microwave TVS is installed on the cavity of microwave cavity, on the chamber wall of said microwave cavity access hole is installed; Between said microwave TVS and the slab conveyer belt fibre mat is arranged, the end of said slab conveyer belt is connected with roll squeezer.
Beneficial effect
The utility model can be after the moulding of mating formation; Before slab is about to get into roll squeezer, the temperature of fibre mat is brought up to 70 ℃-90 ℃ by room temperature, shorten heating and the holdup time of fibre mat in roll squeezer greatly; Improve the production capacity and the product quality of hot press; Reduce production costs, also solved simultaneously because of improving output and caused the oil temperature too high, cause the drawback of disaster hidden-trouble easily.
Description of drawings
Fig. 1 is the utility model structural representation.
The specific embodiment
Referring to Fig. 1; A kind of structural representation of thin fibre board microwave preheating device; A kind of thin fibre board microwave preheating device; Comprise microwave magnetron 1, microwave cavity 2, infrared temperature measurement apparatus 3, microwave TVS 4, access hole 5, slab conveyer belt 6, fibre mat 7, roll squeezer 8, operating frequency is that the microwave magnetron 1 of 2450MHz is array-like along the length of microwave cavity 2 and width and evenly distributes, and infrared thermometer 3 links to each other with microwave magnetron 1 bus; Microwave TVS 4 is installed on the cavity of microwave cavity 2; On the chamber wall of said microwave cavity 2 access hole 5 is installed, between said microwave TVS 4 and the slab conveyer belt 6 fibre mat 7 is arranged, the end of said slab conveyer belt 6 is connected with roll squeezer 8.
The rated power of all microwave magnetrons 1 is identical; Infrared thermometer 3 is used to measure the temperature of steel slab surface behind the microwave preheating; Infrared thermometer 3 links to each other with microwave magnetron 1 bus, can regulate the input current and the microwave radiation of microwave magnetron 1 according to the difference of fibre mat surface observed temperature and design temperature, and the temperature of fibre mat is controlled near the setting value the most at last; Microwave TVS 4 is used for microwave is controlled in the microwave cavity 2; Avoid microwave to leak, improve the microwave utilization rate, and prevent that microwave from leaking human body is damaged.Under stopped status; Through the intact situation of access hole 5 inspection microwave equipments, in the microwave preheating process, the transmission of fibre mat 7 realizes through slab conveyer belt 6; It is polytetrafluoroethylene (PTFE) that slab conveyer belt 6 is made used material; Slab after the preheating is delivered to roll squeezer 8 through slab conveyer belt 6, and under certain temperature and pressure condition, fibre mat is pressed moulding in roll squeezer.
Magnetron 1 is in array-like arrangement along fibre mat width and length direction (slab direction of feed); The gap of each magnetron all around equates; Arranging power along width of plate slab direction equidistance is 900 watts 8 of microwave magnetrons; Arranging power along slab direction of feed (slab length direction) equidistance is 900 watts 17 of magnetrons, amounts to 136 magnetrons and is in array-like arrangement.Under the conveying of conveyer belt 6, get into the microwave preheating device through the shaping slab after the precompressed, slab is heated, before slab is transferred out microwave heating equipment, the temperature of infrared temperature measurement apparatus 3 automatic detection fibers steel slab surface.Control systematic comparison observed temperature and design temperature, according to difference between the two, the control system regulates the input current of microwave magnetron automatically, thereby board briquette is controlled near the setting value.The fibre mat that is heated to after the set temperature value is delivered to roller pressing forming machine 8 through conveyer belt 6.In the present embodiment, thin fiber board output improves 33%, and the sheet material internal bond strength has improved 12%.
More than show and described basic principle of the utility model and the advantage of principal character and the utility model.The technical staff of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection domain to be defined by appending claims and equivalent thereof.
Claims (3)
1. thin fibre board microwave preheating device; Comprise microwave magnetron, microwave cavity, infrared temperature measurement apparatus, microwave TVS, access hole, slab conveyer belt, fibre mat, roll squeezer; It is characterized in that; Said microwave magnetron is array-like along the length of microwave cavity and width and evenly distributes, and infrared thermometer links to each other with the microwave magnetron bus, and the microwave TVS is installed on the cavity of microwave cavity.
2. a kind of thin fibre board microwave preheating device according to claim 1 is characterized in that, on the chamber wall of said microwave cavity access hole is installed, and between said microwave TVS and the slab conveyer belt fibre mat is arranged.
3. a kind of thin fibre board microwave preheating device according to claim 1 is characterized in that the end of said slab conveyer belt is connected with roll squeezer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204847678U CN202448195U (en) | 2011-11-29 | 2011-11-29 | Microwave preheating device for thin fiberboards |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204847678U CN202448195U (en) | 2011-11-29 | 2011-11-29 | Microwave preheating device for thin fiberboards |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202448195U true CN202448195U (en) | 2012-09-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204847678U Expired - Fee Related CN202448195U (en) | 2011-11-29 | 2011-11-29 | Microwave preheating device for thin fiberboards |
Country Status (1)
| Country | Link |
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| CN (1) | CN202448195U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103950084A (en) * | 2014-04-28 | 2014-07-30 | 复旦大学 | Method for making environment-friendly wood material through microwave shaping of straws |
| CN105751346A (en) * | 2016-04-29 | 2016-07-13 | 安徽农业大学 | Thin flame-retardant medium-density fiberboard and preparation method thereof |
| WO2016180889A1 (en) * | 2015-05-11 | 2016-11-17 | Dieffenbacher GmbH Maschinen- und Anlagenbau | Device for continuous heating of material |
| WO2016180886A1 (en) * | 2015-05-11 | 2016-11-17 | Dieffenbacher GmbH Maschinen- und Anlagenbau | Apparatus and method for continuous prouction of materials |
-
2011
- 2011-11-29 CN CN2011204847678U patent/CN202448195U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103950084A (en) * | 2014-04-28 | 2014-07-30 | 复旦大学 | Method for making environment-friendly wood material through microwave shaping of straws |
| CN103950084B (en) * | 2014-04-28 | 2016-03-30 | 复旦大学 | Microwave sizing stalk manufactures the method for environmental protection wood materials |
| CN107580539A (en) * | 2015-05-11 | 2018-01-12 | 迪芬巴赫机械工程有限公司 | Apparatus and method for continuous production material |
| WO2016180889A1 (en) * | 2015-05-11 | 2016-11-17 | Dieffenbacher GmbH Maschinen- und Anlagenbau | Device for continuous heating of material |
| WO2016180886A1 (en) * | 2015-05-11 | 2016-11-17 | Dieffenbacher GmbH Maschinen- und Anlagenbau | Apparatus and method for continuous prouction of materials |
| CN107580540A (en) * | 2015-05-11 | 2018-01-12 | 迪芬巴赫机械工程有限公司 | Device for laser heating material |
| US20180141234A1 (en) * | 2015-05-11 | 2018-05-24 | Dieffenbacher GmbH Maschinen- und Anlagenbau | Apparatus and method for continuous production of materials |
| US20180162010A1 (en) * | 2015-05-11 | 2018-06-14 | Dieffenbacher GmbH Maschinen-und Anlagenbau | Device for continuous heating of material |
| US10967538B2 (en) * | 2015-05-11 | 2021-04-06 | Dieffenbacher GmbH Maschinen-und Anlagenbau | Apparatus and method for continuous production of materials |
| CN107580540B (en) * | 2015-05-11 | 2021-12-21 | 迪芬巴赫机械工程有限公司 | Device for continuously heating material |
| DE102015107380B4 (en) | 2015-05-11 | 2022-11-10 | Dieffenbacher GmbH Maschinen- und Anlagenbau | Device for continuous heating of material |
| CN107580539B (en) * | 2015-05-11 | 2024-07-05 | 迪芬巴赫机械工程有限公司 | Apparatus and method for continuous production of materials |
| CN105751346A (en) * | 2016-04-29 | 2016-07-13 | 安徽农业大学 | Thin flame-retardant medium-density fiberboard and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120926 Termination date: 20151129 |