CN101712178A - Method for heating high-frequency media to produce artificial wood section bar - Google Patents
Method for heating high-frequency media to produce artificial wood section bar Download PDFInfo
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- CN101712178A CN101712178A CN200910310886A CN200910310886A CN101712178A CN 101712178 A CN101712178 A CN 101712178A CN 200910310886 A CN200910310886 A CN 200910310886A CN 200910310886 A CN200910310886 A CN 200910310886A CN 101712178 A CN101712178 A CN 101712178A
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Abstract
The invention discloses a method for heating high-frequency media with higher heating efficiency to produce an artificial wood section bar. A raw material with insulating property is arranged between an upper pressing plate and a lower pressing plate of an artificial wood section bar press, wherein a thermal insulating plate, an upper polar plate, the raw material, a lower polar plate and an insulating layer are sequentially arranged between the upper pressing plate and the lower pressing plate; and the upper pressing plate and the upper polar plate are electrically connected. Two electrodes of a high-frequency medium heater are respectively connected to the upper polar plate and the lower polar plate and jointly form a working electrode with the raw material, and high-frequency electricity is introduced to heat the raw material, wherein the thickness of the raw material is larger than 100mm. The high-frequency heater is used for heating the raw material, which can greatly improve the heating velocity of materials. Compared with the prior art, particularly in the aspect of heating raw materials with greater thickness, the method can greatly shorten the heating time so as to improve the production efficiency. The invention has obvious advantages in the aspect of pressing thicker plates and is mainly used for heating raw materials of an artificial wood section bar press.
Description
Technical field
The present invention relates to a kind of method of heating high-frequency media to produce artificial wood section bar, belong to the artificial wood section bar manufacture field.
Background technology
Artificial wood section bar is to limit the new-type antiskid liner reinforcement material of the alternative timber that cuts down and develop in order to adapt to national timber.The artificial wood section bar press comprises pressure head and mould, being that 15%～20% bamboo reinforcement is a raw material through the timber tailing of pulverization process and crops cane mixed adhesive and percentage by weight, on the lower platen of pressure head, place mould, lay mixed raw materials in the mould, top board presses down, and is processed into certain specification by instructions for use after hot-forming.Having artificial wood section bar processing technology system now is that heat transfer medium heats the raw material in the mould with the circulating hot oil, and when the raw material layer thickness of lay in the mould increased, the efficiency of heating surface descended, and influences production efficiency, therefore need improve this technology.
The high-frequency dielectric heater as working power, generally is used for the heating of slim sheet material with dc source.
Summary of the invention
In order to overcome the low deficiency of the raw material efficiency of heating surface in existing artificial the section bar production, technical problem to be solved by this invention provides the method for the higher heating high-frequency media to produce artificial wood section bar of a kind of efficiency of heating surface.
The technical solution adopted for the present invention to solve the technical problems is: the method for heating high-frequency media to produce artificial wood section bar, raw material with insulating properties is between the top board and lower platen of artificial wood section bar press, be disposed with heat-insulating shield, top crown, raw material, bottom crown and insulating barrier between described top board and the lower platen, two electrodes of high-frequency dielectric heater are connected with bottom crown with top crown respectively, constitute working electrode jointly with raw material, feed high-frequency electrical and raw material is heated the thickness＞100mm of raw material.
The thickness of raw material is 200～300mm, heat time heating time 35～45min.
Described insulating barrier is laid with another layer raw material and is formed, and lower platen is connected with one of them electrode of high-frequency dielectric heater, and this electrode is opposite with the polarity of electrode that is connected to bottom crown.
The invention has the beneficial effects as follows: utilize the characteristic of raw materials such as timber tailing and crops cane mixed adhesive, bamboo reinforcement for insulating materials, use the high-frequency dielectric heater that it is heated, can improve the rate of heat addition of material greatly, compare with original technology, particularly aspect the higher raw material of thickness is heated, can shorten heat time heating time largely, thereby improve production efficiency, the present invention has remarkable advantages in compacting aspect heavy-gauge sheeting.
Description of drawings
Fig. 1 is the schematic diagram of original circulating hot oil heated press.
Fig. 2 is high-frequency dielectric heater of the present invention and artificial wood section bar press connection diagram.
Fig. 3 is the heated condition schematic diagram that the present invention forms two working electrodes.
Be labeled as 1-top board, 2-heat-insulating shield, 3-top crown, 4-bottom crown, 5-insulating barrier, 6-lower platen, 7-raw material, 7 '-raw material, 8-high-frequency dielectric heater, 9-lead, 11-oil pipeline, 12-mould, 13-carriage among the figure.
The specific embodiment
The present invention is further described below in conjunction with drawings and Examples.
As shown in Figure 1, having artificial wood section bar processing technology system now is that heat transfer medium heats the raw material in the mould 12 with the circulating hot oil, mould 12 installs after the raw material, be positioned on the carriage 13, designed oil pipeline 11 in the carriage 13, after being heated to 200 ℃,, mould on the carriage 13 12 and raw material are heated circulating hot oil from the inner process of carriage.For the raw material of the following thickness of 100mm, its efficiency of heating surface still can satisfy production requirement, still, when the raw material layer thickness of lay in the mould 12 be increased to＞during 100mm, the efficiency of heating surface descends, and influences production efficiency.
As shown in Figures 2 and 3, the method of heating high-frequency media to produce artificial wood section bar of the present invention, the method of heating high-frequency media to produce artificial wood section bar, raw material 7 with insulating properties is between the top board 1 and lower platen 6 of artificial wood section bar press, be disposed with heat-insulating shield 2 between described top board 1 and the lower platen 6, top crown 3, raw material 7, bottom crown 4 and insulating barrier 5, two electrodes of high-frequency dielectric heater 8 are connected with bottom crown 4 with top crown 3 respectively, with raw material 7 common formation working electrodes, at this moment, lower platen 6 is not connected with the electrode of high-frequency dielectric heater 8, feed high-frequency electrical and raw material 7 is heated the thickness＞100mm of raw material 7.Use above-mentioned heating means, heat-insulating shield 2 reduces heats and outwards distributes, and insulating barrier 5 prevents that electric current from scurrying and shortened the raw material hot pressing time widely, has saved energy consumption, has improved production efficiency.If the raw material of thickness below 100mm also can use method of the present invention and heat, but not obvious for the effect of shortening heat time heating time, improving the efficiency of heating surface.
Reach the higher efficiency of heating surface, the thickness of raw material 7 preferably between 200～300mm, heat time heating time 35～45min.
As shown in Figure 3, for further improving the efficiency of heating surface, described insulating barrier 5 is laid with another layer raw material 7 and is formed, lower platen 6 is connected with an electrodes conduct of high-frequency dielectric heater 8, at this moment, it is identical with the polarity of electrode that is connected lower platen 6 to keep high-frequency dielectric heater 8 to connect top crown 3, and opposite with the middle polarity of electrode that is connected with bottom crown 4, can form two working electrodes like this and heat simultaneously.
The lead 9 of upper and lower pole plate of described connection and upper and lower pressing plate and high-frequency dielectric heater electrode generally can adopt the copper strips of width at 100～500mm.
Embodiment:
As shown in Figure 2, high-frequency dielectric heater 8 is connected with the artificial wood section bar press, adopt the high-frequency dielectric heating means that the thick raw material layer of 200～300mm is heated, after heat-insulating shield 2 is set on the top board 1 of pressure head top crown 3 is set again, the raw material 7 that in press die, adds q.s, then mould is placed on the lower platen 6 that is provided with insulating barrier 5, bottom crown 4 is set on the insulating barrier 5, bottom crown 4 is connected with one of them electrode of high-frequency dielectric heater 8, top board 1 and top crown 3 are connected to another electrode of high-frequency dielectric heater 8, simultaneously with the press earthing of casing, pressure head drops to top crown 3 and contacts with raw material 7, apply certain pressure to raw material 7, begin the energising heating then.Pick up counting during from energising, heat 40min, can obtain the artificial wood section bar of moulding.
If use original technology, do medium with circulating hot oil the thick raw material layer of 200～300mm is heated, need the artificial wood section bar that just can obtain moulding heat time heating time about 4h.
Find that through test 100mm thickness has heating means and high-frequency dielectric heating means of the present invention now with interior artificial wood section bar, time phase difference is little; The artificial wood section bar that 100mm thickness is above then should adopt the high-frequency dielectric heating means to produce, and can shorten heat time heating time greatly.
Claims (3)
1. the method for heating high-frequency media to produce artificial wood section bar, raw material (7) with insulating properties is positioned between the top board (1) and lower platen (6) of artificial wood section bar press, it is characterized in that: be disposed with heat-insulating shield (2) between described top board (1) and the lower platen (6), top crown (3), raw material (7), bottom crown (4) and insulating barrier (5), two electrodes of high-frequency dielectric heater (8) are connected with bottom crown (4) with top crown (3) respectively, constitute working electrode jointly with raw material (7), feed high-frequency electrical and raw material (7) is heated the thickness＞100mm of raw material (7).
2. the method for heating high-frequency media to produce artificial wood section bar as claimed in claim 1, it is characterized in that: the thickness of raw material (7) is 200～300mm, heat time heating time 35～45min.
3. the method for heating high-frequency media to produce artificial wood section bar as claimed in claim 1, it is characterized in that: described insulating barrier (5) is laid with another layer raw material (7) and is formed, lower platen (6) is connected with one of them electrode of high-frequency dielectric heater (8), and this electrode is opposite with the polarity of electrode that is connected to bottom crown (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910310886A CN101712178A (en) | 2009-12-04 | 2009-12-04 | Method for heating high-frequency media to produce artificial wood section bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910310886A CN101712178A (en) | 2009-12-04 | 2009-12-04 | Method for heating high-frequency media to produce artificial wood section bar |
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| CN101712178A true CN101712178A (en) | 2010-05-26 |
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| CN200910310886A Pending CN101712178A (en) | 2009-12-04 | 2009-12-04 | Method for heating high-frequency media to produce artificial wood section bar |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102069525A (en) * | 2010-11-04 | 2011-05-25 | 宁波大世界家具研发有限公司 | Process and device for manufacturing thick fiber board by high frequency-contact combined heating mode |
| CN102501281A (en) * | 2011-10-13 | 2012-06-20 | 青岛国森机械有限公司 | Hydraulic press for multi-layer bamboo wood integrated material |
| CN105415458A (en) * | 2014-09-19 | 2016-03-23 | 浙江九川竹木股份有限公司 | Processing device and method for special-shaped bamboo product |
| CN109278143A (en) * | 2018-10-09 | 2019-01-29 | 石家庄高源高频科技有限公司 | A kind of high frequency Recombinant Wood drying unit |
-
2009
- 2009-12-04 CN CN200910310886A patent/CN101712178A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102069525A (en) * | 2010-11-04 | 2011-05-25 | 宁波大世界家具研发有限公司 | Process and device for manufacturing thick fiber board by high frequency-contact combined heating mode |
| CN102069525B (en) * | 2010-11-04 | 2012-12-12 | 宁波大世界家具研发有限公司 | Process and device for manufacturing thick fiber board by high frequency-contact combined heating mode |
| CN102501281A (en) * | 2011-10-13 | 2012-06-20 | 青岛国森机械有限公司 | Hydraulic press for multi-layer bamboo wood integrated material |
| CN105415458A (en) * | 2014-09-19 | 2016-03-23 | 浙江九川竹木股份有限公司 | Processing device and method for special-shaped bamboo product |
| CN109278143A (en) * | 2018-10-09 | 2019-01-29 | 石家庄高源高频科技有限公司 | A kind of high frequency Recombinant Wood drying unit |
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Open date: 20100526 |