Electromagnetic induction heating 3D printing and forming system

[0020] In order to make the purpose, content, and advantages of the present invention clearer, the specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0021] Such as figure 1 As shown, an electromagnetic induction heating 3D printing forming system provided by the present invention includes a heating system 1 and an electromagnetic induction control system 3.

[0022] Such as figure 2 As shown, the heating system 1 includes a forming substrate 4, a forming platform 5, a heat-resistant ceramic insulation layer 6, an electromagnetic heating plate 7, and a base 8. The base 8 is located at the bottom of the heating system 1 and is fixedly connected to the equipment forming system; the electromagnetic heating plate 7 is installed inside the base 8 and is connected to the base 8 by screws; the high temperature resistant ceramic insulation layer 6 is located above the electromagnetic heating plate 7 and fixed by screws On the electromagnetic heating plate 7; the forming platform 5 is located above the heat insulation layer 6 and is fixedly connected to the base 8 by screws; the forming substrate 4 is located above the forming platform 5 and is fixedly connected to the forming platform 5 by screws.

[0023] Such as image 3 As shown, the electromagnetic heating plate 7 includes a support frame 9, an electromagnetic induction coil 10, a temperature sensor 12, and a magnet 13. The electromagnetic induction coil 10 is installed on the front of the support frame 9, and the ends of the electromagnetic induction coil 10 are terminal 14 and terminal 15. The magnet 13 is installed in the cuboid groove on the back of the support frame 9 to eliminate the high-frequency electromagnetic field generated by the electromagnetic induction coil 10 on the back of the electromagnetic heating plate 7 and prevent the high-frequency electromagnetic field from affecting the base 8 and other devices. There are 8 cuboid grooves, all in the circumferential direction. On the back of the support frame 9. The temperature sensor 12 is located between the high-temperature resistant ceramic heat insulation layer 6 and the forming platform 5 and is led out from under the electromagnetic heating plate 7.

[0024] The working principle of the electromagnetic induction heating 3D printing forming system is: under the control of the electromagnetic induction control system 3, the electromagnetic induction coil 10 in the electromagnetic heating plate 7 starts to work, and the electromagnetic induction coil 10 is supplied with alternating current, and a certain intensity is generated above it. Frequency alternating magnetic field, most of the magnetic field lines of the alternating magnetic field pass through the forming platform 5, and a large number of eddy currents are generated in the forming platform 5, thereby generating a large amount of heat to heat the forming platform 5. The forming platform 5 is in direct contact with the forming substrate 4. The shaped substrate 4 is heated, while the electromagnetic heating plate 7 has a certain direct heating effect on the shaped substrate 4.

[0025] In this embodiment, the electromagnetic induction coil 10 is a circular winding method. The present invention can be improved as follows. The electromagnetic induction heating 3D printing forming system can also provide other three types of electricity for the electromagnetic induction coil 10 according to the structural characteristics of the forming platform of the market equipment. Magnetic induction coil winding method: square electromagnetic induction coil 16, rectangular electromagnetic induction coil 17, sector electromagnetic induction coil 18, such as Figure 4 Shown. Select the special electromagnetic induction coil winding method according to the actual equipment requirements.

[0026] The invention adopts electromagnetic induction heating technology, which can realize high heating efficiency, energy saving and environmental protection, and avoids the shortcomings of resistance wire heating such as low efficiency and high energy consumption. In addition, the electromagnetic induction heating temperature is high, the heating is uniform, the heating speed and the heating temperature are controllable, and the control flexibility is high. Secondly, the present invention adopts the electromagnetic heating disk mode to wind the electromagnetic induction coil into a disk shape, the overall structure is small in volume, and does not occupy too much space in the forming system. The invention provides four electromagnetic induction coil winding modes: circle, square, rectangle and sector, which provide ideas for the electromagnetic induction heating coil winding modes. Different winding modes can be selected according to the structural characteristics of different equipment, which efficiently uses space and ensures uniform heating. The invention is a brand-new invention in the field of metal 3D printing, and is suitable for heating in industrial-grade 3D printing forming systems, especially in the area of ​​metal selective melting and forming technology, and has extremely high industrial production value in the field of equipment manufacturing in the future.

[0027] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principles of the present invention, several improvements and modifications can be made. These improvements and modifications It should also be regarded as the protection scope of the present invention.