Pure induction heating device for tin-plated thin steel plate

Abstract

The utility model relates to a tin-plated thin steel plate pure induction heating device which comprises a heating mechanism, the heating mechanism comprises a limiting part and a heating assembly, the limiting part and the heating assembly form a heat preservation cavity, the heat preservation cavity is used for achieving a heat preservation effect on a heated steel plate and limiting the position of the steel plate, and the heating assembly comprises an upper heating piece and a lower heating piece. The upper heating piece and the lower heating piece are used for heating the upper surface and the lower surface of the steel plate. The tin plating device has the advantages that the thin steel plate is positioned, heat preservation is conducted on the steel plate in the heating process, the thin steel plate is located at the proper position, heat is not prone to being dissipated, and therefore the thin steel plate is heated more evenly, and the tin plating effect is better.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tin-plated thin steel plate, and particularly relates to a pure induction heating device for tin-plated thin steel plate. BACKGROUND

[0002] Tin-plating thin steel plate can improve the corrosion resistance, weldability and machinability of the steel plate. In order to achieve good tin-plating effect, the thin steel plate needs to be heated before tin-plating. However, due to the large surface area of the thin steel plate, the steel plate is unevenly heated and the heat is easily lost, resulting in poor tin-plating effect. CONTENT

[0003] In view of the deficiencies in the prior art, one of the purposes of the present application is to provide a pure induction heating device for tin-plated thin steel plate, which has the advantages of positioning the thin steel plate and heat preservation during heating, so that the thin steel plate is in a suitable position and the heat is not easily lost, thereby making the thin steel plate more evenly heated and having better tin-plating effect.

[0004] The above purpose of the present application is achieved by the following technical solution:

[0005] A pure induction heating device for tin-plated thin steel plate, comprising a heating mechanism, the heating mechanism comprising a limiting portion and a heating assembly, the limiting portion and the heating assembly forming a heat preservation cavity, the heat preservation cavity being used for heat preservation of the steel plate during heating and limiting the position of the steel plate, the heating assembly comprising an upper heating piece and a lower heating piece, the upper heating piece and the lower heating piece being used for heating the upper and lower surfaces of the steel plate.

[0006] By adopting the above technical solution, the heat preservation cavity plays a heat preservation role for the steel plate during heating and limits the position of the steel plate, so that the position of the thin steel plate is limited and the steel plate can be heat preserved during heating, so that the thin steel plate can stay in a suitable position and the heat is not easily lost, thereby making the thin steel plate more evenly heated and having better tin-plating effect.

[0007] In a preferred example, the present application can be further configured as follows: the upper heating piece comprises a shell and a heating body, the heating body being mounted on the shell, the heating body being used for heating the thin steel plate, and the upper heating piece and the lower heating piece have the same structure.

[0008] By adopting the above technical solution, the thin steel plate can be heated.

[0009] In a preferred example, the present application can be further configured as follows: the shell is provided with a connecting portion and a heat conduction surface, the connecting portion being used for connecting with the limiting portion, and the heat conduction surface being used for guiding the heat to the steel plate.

[0010] By adopting the above technical solution, the heat conduction surface guides the heat to the steel plate, so that the heat circulation effect of the heat in the heat preservation cavity is better.

[0011] The application can be further configured in a preferred example that the heat-conducting surface is a circular arc surface.

[0012] By adopting the above technical scheme, the probability of heat circulation dead angle in the flow process is reduced.

[0013] The application can be further configured in a preferred example that the shell is slidingly connected to the limiting portion through the connecting portion, and the connecting portion is provided with a protrusion one for limiting the position of the shell on the limiting portion.

[0014] By adopting the above technical scheme, the shell is slidingly installed on the limiting portion, so that the shell and the limiting portion are more convenient to disassemble.

[0015] The application can be further configured in a preferred example that the limiting portion includes a limiting groove, a containing groove and an extending portion, the heating assembly is installed on the limiting portion through the limiting groove, the containing groove is used for containing the steel plate, and the extending portion is used for guiding the heat transfer to the steel plate.

[0016] The application can be further configured in a preferred example that the extending portion is provided with an arc surface one and an arc surface two.

[0017] By adopting the above technical scheme, the arc surface one and the arc surface two are used for reducing the probability of heat circulation dead angle in the heat transfer process, and affecting the heat circulation effect of the heat.

[0018] The application can be further configured in a preferred example that the arc surface one and the arc surface two are circular arc surfaces.

[0019] The application can be further configured in a preferred example that the containing groove is provided with an elastic rolling member, and the elastic rolling member is used for being close to the steel plate and enabling the steel plate to slide in the containing groove.

[0020] By adopting the above technical scheme, the containing groove can be suitable for steel plates with different thicknesses.

[0021] The application can be further configured in a preferred example that the limiting groove is provided with a protrusion two for preventing the shell from sliding off the limiting portion. BRIEF DESCRIPTION OF DRAWINGS

[0022] Fig. 1 is a structural schematic diagram of the embodiment of the application.

[0023] Fig. 2 is a structural schematic diagram of the heating mechanism of the application.

[0024] Fig. 3 is a structural schematic diagram of the limiting portion of the application.

[0025] Fig. 1 is a heat preservation bin; 2 is a heating mechanism; 3 is a limiting part; 31 is a limiting groove; 311 is a convex part two; 32 is a containing groove; 321 is an elastic rolling part; 33 is an extension part; 331 is an arc surface one; 332 is an arc surface two; 4 is a heating assembly; 41 is an upper heating part; 42 is a lower heating part; 43 is a shell; 431 is a connecting part; 432 is a convex part one; 433 is a heat conduction surface; 44 is a heating body; 5 is a heat preservation cavity; 6 is a steel plate; 7 is a heat preservation layer. DETAILED DESCRIPTION

[0026] The application will be further described in detail below with reference to the accompanying drawings.

[0027] Reference Figs. 1 to 3 The application discloses a pure induction heating device for a tinned steel sheet, which comprises a heat preservation bin 1 and a plurality of groups of heating mechanisms 2. The heating mechanisms 2 are installed side by side on the heat preservation bin 1 through screws. The heat preservation bin 1 is provided with a temperature detector 8 and a heat preservation layer 7. The temperature detector 8 is used for measuring the temperature of the heating mechanisms 2. In this embodiment, the temperature detector 8 can be a temperature measuring instrument such as a temperature sensor, a thermometer or a thermocouple.

[0028] The heating mechanism 2 comprises a limiting part 3 and a heating assembly 4. The limiting part 3 is arranged on both sides of the heating assembly 4 and forms a heat preservation cavity 5 together with the heating assembly 4. The heat preservation cavity 5 is used for heat preservation of the steel plate 6 during heating and limiting the position of the steel plate 6.

[0029] The heating assembly 4 comprises an upper heating part 41 and a lower heating part 42. The upper heating part 41 and the lower heating part 42 are used for heating the upper and lower surfaces of the steel plate 6. The upper heating part 41 comprises a shell 43 and a heating body 44. The heating body 44 is installed on the shell 43. The heating body 44 is used for heating the steel plate 6. The upper heating part 41 and the lower heating part 42 are of the same structure. In this embodiment, the heating body 44 can be a heating induction coil. The shell 43 is provided with two connecting parts 431 and a heat conduction surface 433 which is a circular arc surface. The connecting parts 431 are used for connecting the limiting part 3. The shell 43 is connected to the limiting part 3 through the connecting parts 431. The connecting parts 431 are provided with convex parts one 432. The convex parts one 432 are used for limiting the position of the shell 43 on the limiting part 3. The heat conduction surface 433 is used for guiding the heat to the steel plate 6, so that the heat circulation effect in the heat preservation cavity 5 is better.

[0030] The limiting part 3 comprises a limiting groove 31, a containing groove 32 and a protruding part 33, the connecting part 431 on the shell 43 is matched with the limiting groove 31, so that the heating assembly 4 is installed on the limiting part 3, the limiting groove 31 is provided with a protrusion two 311, the protrusion two 311 is used for preventing the shell 43 from sliding off the limiting part 3, the containing groove 32 is used for containing the steel plate 6, the protruding part 33 is used for guiding the heat to the steel plate 6, the protruding part 33 is provided with an arc surface one 331 and an arc surface two 332, the arc surface one 331 and the arc surface two 332 are used for reducing the probability of dead cycle of heat in the transmission process, affecting the thermal cycle effect of heat, the arc surface one 331 and the arc surface two 332 are provided as circular arc surfaces, a plurality of groups of elastic rolling members 321 are arranged in the containing groove 32, the elastic rolling members 321 are used for being close to the steel plate 6 and enabling the steel plate 6 to slide in the containing groove 32 under the action of other structures, in the embodiment, the elastic rolling members 321 can adopt ball plunger, so that the containing groove 32 can be suitable for steel plates 6 with different thicknesses.

[0031] Under the action of other structures, the steel plate 6 is sent to the heating mechanism 2, the steel plate 6 is extended into the central position of the heat preservation cavity 5 along the containing groove 32, the elastic rolling members 321 abut against the steel plate 6, the heating body 44 installed on the shell 43 heats the steel plate 6, so that the steel plate 6 is heated more uniformly, the arc surface one and the arc surface two on the protruding part 33 and the heat-conducting surface 433 on the shell 43 make the transition between the surfaces of the heat preservation cavity 5 more gentle, so that the thermal cycle effect of heat of the heat preservation cavity 5 is better, and then the heat is not easy to dissipate, and the thin steel plate 6 is heated more uniformly.

[0032] The implementation principle of the embodiment is that the heat preservation cavity 5 formed by the limiting part 3 and the heating assembly 4 plays a heat preservation role on the steel plate 6 in heating, and the limiting part 3 can limit the position of the steel plate 6, so that the position of the thin steel plate 6 is limited and the steel plate 6 can be heat preserved in the heating process, so that the thin steel plate 6 can stay in a suitable position and the heat is not easy to dissipate, thereby the thin steel plate 6 is heated more uniformly and the tinning effect is better.

[0033] The embodiments of the specific embodiment are the preferred embodiments of the application, not limited to the protection scope of the application, so that: any equivalent changes made according to the structure, shape, principle of the application should be covered in the protection scope of the application.

Claims

1. A pure induction heating device for tin-plated thin steel sheets, characterized in that: The heating mechanism (2) includes a limiting part (3) and a heating component (4). The limiting part (3) and the heating component (4) form a heat preservation cavity (5). The heat preservation cavity (5) is used to keep the steel plate (6) under heating and to limit the position of the steel plate (6). The heating component (4) includes an upper heating element (41) and a lower heating element (42). The upper heating element (41) and the lower heating element (42) are used to heat the upper and lower surfaces of the steel plate (6).

2. The pure induction heating device for tin-plated thin steel sheet according to claim 1, characterized in that: The upper heating element (41) includes a housing (43) and a heating element (44). The heating element (44) is mounted on the housing (43) and is used to heat the thin steel plate (6). The upper heating element (41) and the lower heating element (42) have the same structure.

3. The pure induction heating device for tin-plated thin steel sheet according to claim 2, characterized in that: The housing (43) is provided with a connecting part (431) and a heat-conducting surface (433). The connecting part (431) is used to connect with the limiting part (3), and the heat-conducting surface (433) is used to guide heat to be transferred to the steel plate (6).

4. The pure induction heating device for tin-plated thin steel sheet according to claim 3, characterized in that: The heat-conducting surface (433) is set as a circular arc surface.

5. The pure induction heating device for tin-plated thin steel sheet according to claim 2, characterized in that: The housing (43) is slidably connected by the connecting part (431) and the limiting part (3). The connecting part (431) is provided with a protrusion (432), which is used to limit the position of the housing (43) on the limiting part (3).

6. The pure induction heating device for tin-plated thin steel sheet according to claim 1, characterized in that: The limiting part (3) includes a limiting groove (31), a receiving groove (32) and a protrusion (33). The heating component (4) is installed on the limiting part (3) through the limiting groove (31). The receiving groove (32) is used to receive the steel plate (6), and the protrusion (33) is used to guide heat to be transferred to the steel plate (6).

7. The pure induction heating device for tin-plated thin steel sheet according to claim 6, characterized in that: The protruding part (33) is provided with an arc surface one (331) and an arc surface two (332).

8. The pure induction heating device for tin-plated thin steel sheet according to claim 7, characterized in that: Arc surface one (331) and arc surface two (332) are set as circular arc surfaces.

9. The pure induction heating device for tin-plated thin steel sheet according to claim 6, characterized in that: The receiving groove (32) is provided with an elastic rolling element (321), which is used to approach the steel plate (6) and allow the steel plate (6) to slide within the receiving groove (32).

10. A pure induction heating device for tin-plated thin steel sheet according to claim 6, characterized in that: The limiting groove (31) is provided with a second protrusion (311), which is used to prevent the housing (43) from slipping off the limiting part (3).

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