CN111203945A - High-frequency electromagnetic induction direct heating press heating plate - Google Patents
High-frequency electromagnetic induction direct heating press heating plate Download PDFInfo
- Publication number
- CN111203945A CN111203945A CN202010074666.7A CN202010074666A CN111203945A CN 111203945 A CN111203945 A CN 111203945A CN 202010074666 A CN202010074666 A CN 202010074666A CN 111203945 A CN111203945 A CN 111203945A
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- China
- Prior art keywords
- line hole
- steel plate
- electromagnetic induction
- heating plate
- frequency electromagnetic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
- B27D1/08—Manufacture of shaped articles; Presses specially designed therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D3/00—Veneer presses; Press plates; Plywood presses
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Induction Heating (AREA)
Abstract
The invention discloses a high-frequency electromagnetic induction direct-heating press heating plate which comprises a steel plate and high-temperature electromagnetic wires, wherein a row of wire holes penetrating through the steel plate are arranged in the middle of the steel plate and parallel to the upper surface and the lower surface of the steel plate, the wire holes are uniformly arranged at equal intervals, the center distance between adjacent wire holes is 5 cm-10 cm, when the center distance between adjacent wire holes is 5 cm-8 cm, the high-temperature electromagnetic wires penetrate through the wire holes according to the principle that the current directions between adjacent holes are as consistent as possible, when the center distance between adjacent wire holes is 8 cm-10 cm, the high-temperature electromagnetic wires penetrate through the wire holes according to the principle that the high-temperature electromagnetic wires sequentially penetrate through the adjacent wire holes, and. According to the invention, the structure of the hot-pressed steel plate is not changed as much as possible by arranging the line holes, so that the mechanical property of the hot-pressed steel plate is ensured not to be changed; meanwhile, the electromagnetic energy can be fully absorbed by the steel plate and converted into heat energy, the whole steel plate is uniformly heated, and the improvement of the existing flat hot pressing plate is facilitated.
Description
Technical Field
The invention relates to the field of pressing equipment, in particular to an environment-friendly, high-efficiency and energy-saving high-frequency electromagnetic induction direct heating press heating plate.
Background
The production of the artificial board (furniture) generally needs to use a hot press at present, and the heat source of the hot press at present is from the external heat source of the press, for example, heat energy generated by the combustion of a boiler (such as coal, fuel oil and gas) is transferred to a hot pressing plate of the hot press through steam or heat conducting oil to be used for hot pressing and jointing of the board (furniture). It is known that the energy transfer process is accompanied by energy loss, and the energy efficiency is low due to the reduction of the heat efficiency caused by the influence of the heat exchange efficiency, so that there is a great waste in energy saving and economy. With more and more attention paid to environmental protection, high-pollution equipment such as boilers using coal as fuel gradually fades out the sight of people, and replaces the high-pollution equipment with more environmental-friendly and convenient electric heating equipment. However, the existing high-frequency heating mode has the defect of damaging the mechanical structure of the hot-pressed steel plate, and the original mechanical structure is changed by the existing mode of arranging the wire grooves due to the large breadth of the steel plate, so that the high-frequency heating mode is very easy to deform due to the fact that the high-frequency heating mode is sagged by gravity and bears pressure impact.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the heating plate of the high-frequency electromagnetic induction direct hot press, which ensures that the mechanical property of the hot-pressed steel plate is not changed as far as possible without changing the self structure of the hot-pressed steel plate and ensures that the whole steel plate is uniformly heated.
The technical scheme adopted by the invention is as follows: the utility model provides a straight hot press hot plate of high frequency electromagnetic induction, includes steel sheet, high temperature electromagnetic wire, steel sheet middle part, the face is equipped with one row of line hole that runs through the steel sheet about being on a parallel with, the equidistant align of line hole, adjacent line hole centre-to-centre spacing is 5cm ~ 10cm, and when adjacent line hole centre-to-centre spacing was 5cm ~ 8cm, the line hole is passed according to the principle that the electric current direction is unanimous as far as possible between the adjacent hole to high temperature electromagnetic wire, when adjacent line hole centre-to-centre spacing was 8cm ~ 10cm, the line hole is passed according to the principle that passes adjacent line hole in proper order to high temperature electromagnetic wire both ends and high frequency heating.
Further, when the distance between the wire holes is 5 cm-8 cm, the principle that the high-temperature electromagnetic wire passes through the wire holes is as follows: after the forward direction passes through the 1 st line hole, the reverse direction passes through the m line hole, then the forward direction passes through the 2 nd line hole, then the reverse direction passes through the m +1 line hole, then the forward direction passes through the 3 rd line hole, then the reverse direction passes through the m +2 line hole, and after the forward direction passes through the m-1 line hole, the reverse direction passes through the 2 nd line hole.
Further, the diameter of the line hole is 14-26 mm.
Further, the centers of the line holes are equidistant from the upper and lower surfaces of the steel plate.
Further, the direction of the line hole is perpendicular to the length direction of the steel plate.
Furthermore, the steel plate is preferably a Q235 carbon steel plate, and the thickness is preferably 36-50 mm.
Furthermore, a single or a plurality of high-temperature electromagnetic wires can be threaded in each wire hole according to the area size of the heating plate and the requirement of high-frequency heating power.
Furthermore, nonmetal protective covers are arranged at two ends of the steel plate on the wire hole.
Further, the heating plate can be composed of 1 to a plurality of steel plates, and the top end of the uppermost steel plate and the lower end of the lowermost steel plate are separated from the base by insulating materials.
Compared with the prior art, the invention has the following beneficial effects:
(1) according to the invention, the structure of the hot-pressed steel plate is not changed as much as possible by arranging the line holes, so that the mechanical property of the hot-pressed steel plate is ensured not to be changed; meanwhile, the electromagnetic energy can be fully absorbed by the steel plate and converted into heat energy, the reasonable line hole spacing arrangement and the uniform coil distribution can be realized, and the uniform heating of the whole steel plate can be ensured;
(2) the coil is simple in arrangement, and is beneficial to the reconstruction of all the existing flat plate type hot pressing plates, so that the aims of saving resources and reducing cost can be achieved practically;
(3) the invention utilizes the magnetic field induction eddy current heating principle to enable the heating plate to generate eddy current heating under the action of a high-frequency electromagnetic field so as to realize self heating of the heating plate, thereby avoiding heat energy loss caused by heat conduction, belonging to an indirect heating mode and avoiding potential safety hazards;
(4) the wire holes are formed under the premise of fully considering the working condition of the press, so that the overall structure of the steel plate is not changed, the requirements of pressure, impact strength, elastic modulus, cold and hot deformation and the like under the working condition of the press are met, the electromagnetic energy performance is fully met while the quality of the steel plate is reduced by the design of the wire holes, the uniform heating is ensured, the working condition requirements can be met, the structure is simple, the quality of the metal plate to be heated is reduced, and a large amount of energy is saved;
(5) the nonmetal protective covers are arranged on the edges of the two sides of the wire hole, so that the requirement of working conditions is met, and the purpose of protecting the coil is achieved;
(6) the invention can practically solve the problem of environmental pollution caused by using various boilers in the existing plate production enterprises, saves energy to the maximum extent while adopting clean energy and electric energy, and has remarkable social benefit. Meanwhile, the invention can be used for modifying and upgrading the traditional press machine heated by steam, heat conducting oil and the like such as coal, gas and the like, thereby saving a large amount of the traditional equipment and resources and having obvious economic benefit and social benefit.
Drawings
FIG. 1 is a schematic side view of a steel sheet according to the present invention.
FIG. 2 is a schematic diagram of a winding method of a high-temperature electromagnetic wire when the center distance between adjacent wire holes is 8-10 cm.
FIG. 3 is a schematic view of a winding method of a high-temperature electromagnetic wire when the center distance between adjacent wire holes is 5-8 cm.
FIG. 4 is a schematic view showing another winding method of a high-temperature electromagnetic wire when the center distance between adjacent wire holes is 5 cm-8 cm.
Detailed Description
In order to facilitate an understanding of the invention, the invention will be described more fully and in detail below with reference to the accompanying drawings and preferred embodiments, but the scope of the invention is not limited to the specific embodiments below.
As shown in FIG. 1, the heating plate of the high-frequency electromagnetic induction direct heating press of the invention comprises a steel plate 1 and high-temperature electromagnetic wires, wherein the steel plate 2 is preferably a Q235 carbon steel plate, and the thickness is preferably 36-50 mm. The steel sheet 1 middle part, be on a parallel with the top and bottom and be equipped with one row of line hole 2 that runs through the steel sheet, the direction in line hole 2 is perpendicular with steel sheet length direction, and line hole 2 equidistant align, the diameter in line hole 2 is 14 ~ 26mm, and the distance from the top to the bottom of the center of line hole 2 steel sheet equals, and adjacent line hole 2 center-to-center distance is 5cm ~ 10 cm. The high-temperature electromagnetic wire passes through the wire hole 2, and both ends of the high-temperature electromagnetic wire are connected with a high-frequency heating power supply and a controller.
As shown in FIG. 2, when the center distance between adjacent wire holes is 8-10 cm, the high temperature magnet wire passes through the wire holes according to the principle that the magnet wire passes through the adjacent wire holes in sequence.
As shown in fig. 3 and 4, when the center distance between adjacent wire holes is 5cm to 8cm, the high-temperature magnet wire passes through the wire holes according to the principle that the current directions between adjacent holes are as consistent as possible, specifically, after passing through the 1 st wire hole in the forward direction, the high-temperature magnet wire passes through the m-th wire hole in the reverse direction, then passes through the 2 nd wire hole in the forward direction, then passes through the 3 rd wire hole in the forward direction, then passes through the m +2 th wire hole in the reverse direction, and then passes through the 2 nd wire hole in the reverse direction after sequentially passing through the m-1 st wire hole in the forward direction. In the winding manner shown in fig. 3, only one current direction of the adjacent coils in the whole steel plate is opposite, and the current directions of the other adjacent coils are all the same, and in the winding manner shown in fig. 4, the current directions of the adjacent coils in the whole steel plate are only opposite, and the current directions of the other adjacent coils are all the same. In addition to the winding methods shown in fig. 3 and 4, other winding methods can be adopted according to the present principles according to actual situations, and are within the protection scope of the present invention.
Single or a plurality of high-temperature electromagnetic wires can be threaded in each wire hole according to the area of the heating plate and the requirement of high-frequency heating power. In order to protect the high-temperature electromagnetic coil, the steel plate is provided with non-metal protective covers at two ends of the wire hole. The heating plate can be composed of 1 to a plurality of steel plates, and the top end of the uppermost steel plate and the lower end of the lowermost steel plate are separated from the base by insulating materials.
Many modifications and other embodiments of the invention will come to mind to one skilled in the art to which this invention pertains having the benefit of the teachings presented in the foregoing descriptions and the associated drawings. Therefore, it is to be understood that the inventions are not to be limited to the specific embodiments disclosed and that modifications and other embodiments are intended to be included within the scope of the appended claims. Although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (9)
1. The utility model provides a direct hot press hot plate of high frequency electromagnetic induction, includes steel sheet, high temperature electromagnetic wire, its characterized in that: the steel plate middle part, be parallel to the upper and lower face and be equipped with one row of line hole that runs through the steel plate, the equidistant evenly arranged of line hole, adjacent line hole centre-to-centre spacing is 5cm ~ 10cm, and when adjacent line hole centre-to-centre spacing was 5cm ~ 8cm, the line hole is passed according to the principle that the electric current direction is unanimous as far as possible between the adjacent hole to the high temperature solenoid, and when adjacent line hole centre-to-centre spacing was 8cm ~ 10cm, the line hole is passed according to the principle that passes adjacent line hole in proper order to the high temperature solenoid, and high temperature solenoid both ends are connected with.
2. The heating plate of the high-frequency electromagnetic induction direct heat press as claimed in claim 1, wherein: when the distance between the wire holes is 5 cm-8 cm, the principle that the high-temperature electromagnetic wire penetrates through the wire holes is as follows: after the forward direction passes through the 1 st line hole, the reverse direction passes through the m line hole, then the forward direction passes through the 2 nd line hole, then the reverse direction passes through the m +1 line hole, then the forward direction passes through the 3 rd line hole, then the reverse direction passes through the m +2 line hole, and after the forward direction passes through the m-1 line hole, the reverse direction passes through the 2 nd line hole.
3. The heating plate of the high-frequency electromagnetic induction direct heat press as claimed in claim 1, wherein: the diameter of the line hole is 14-26 mm.
4. The heating plate of the high-frequency electromagnetic induction direct heat press as claimed in claim 1, wherein: the centers of the line holes are equidistant from the upper surface and the lower surface of the steel plate.
5. The heating plate of the high-frequency electromagnetic induction direct heat press as claimed in claim 1, wherein: the direction of the line hole is vertical to the length direction of the steel plate.
6. The heating plate of the high-frequency electromagnetic induction direct heat press as claimed in claim 1, wherein: the steel plate is preferably a Q235 carbon steel plate, and the thickness is preferably 36-50 mm.
7. The heating plate of the high-frequency electromagnetic induction direct heat press as claimed in claim 1, wherein: single or a plurality of high-temperature electromagnetic wires can be threaded in each wire hole according to the area of the heating plate and the requirement of high-frequency heating power.
8. The heating plate of a high-frequency electromagnetic induction direct heat press as claimed in any one of claims 1 to 7, wherein: and nonmetal protective covers are arranged at two ends of the steel plate on-line hole.
9. The heating plate of a high-frequency electromagnetic induction direct heat press as claimed in any one of claims 1 to 8, wherein: the heating plate can be composed of 1 to a plurality of steel plates, and the top end of the uppermost steel plate and the lower end of the lowermost steel plate are separated from the base by insulating materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010074666.7A CN111203945A (en) | 2020-01-22 | 2020-01-22 | High-frequency electromagnetic induction direct heating press heating plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010074666.7A CN111203945A (en) | 2020-01-22 | 2020-01-22 | High-frequency electromagnetic induction direct heating press heating plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111203945A true CN111203945A (en) | 2020-05-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010074666.7A Pending CN111203945A (en) | 2020-01-22 | 2020-01-22 | High-frequency electromagnetic induction direct heating press heating plate |
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| Country | Link |
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| CN (1) | CN111203945A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112265079A (en) * | 2020-10-29 | 2021-01-26 | 武汉市明煌建筑劳务有限公司 | Plywood hot press unit for building engineering |
| CN114828319A (en) * | 2022-06-29 | 2022-07-29 | 秦皇岛晟成自动化设备有限公司 | Electromagnetic induction heating device and laminating machine with same |
-
2020
- 2020-01-22 CN CN202010074666.7A patent/CN111203945A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112265079A (en) * | 2020-10-29 | 2021-01-26 | 武汉市明煌建筑劳务有限公司 | Plywood hot press unit for building engineering |
| CN114828319A (en) * | 2022-06-29 | 2022-07-29 | 秦皇岛晟成自动化设备有限公司 | Electromagnetic induction heating device and laminating machine with same |
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