Bearing platform heat preservation and heating device before rolling

Abstract

The invention relates to the technical field of metal plate and strip rolling forming, in particular to a pre-rolling bearing platform heat preservation and heating device which can evenly apply and keep a certain temperature to a rolled blank on a pre-rolling bearing platform so as to avoid the situation that the blank makes contact with a room temperature platform before rolling, the cooling speed is too high, and the hot rolling forming result is affected. The device comprises a bearing platform main body, a heating coil, a heating coil bracket, electric control equipment and an infrared temperature sensor. A heating coil supported by a heating coil support is placed in the bearing platform body, an interface for electrifying the heating coil is reserved on the heating coil support, an infrared temperature sensor is arranged above an inlet of the heating coil support and feeds back temperature information to electric control equipment in real time and corrects the temperature information, and the heating coil support is connected with the bearing platform body through screws. The whole device is fixed to a rack through bolts. According to the invention, a certain temperature can be provided or kept for the blank before rolling of plates and strips, so that the purpose of improving the hot rolling forming quality and the comprehensive performance of products is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of metal plate and strip rolling forming, in particular to a pre-rolling support platform heat preservation and heating device. Background Art

[0002] Material forming and processing technology is an important component of the manufacturing industry and has important applications in many fields such as machinery, electricity, and communications. With the continuous advancement of science and technology, material science and processing technology and technology have made great progress, and the corresponding material preparation industry has also developed rapidly.

[0003] In recent years, the requirements for material performance and output in various industries have been increasing year by year. Among them, plates and strips are the most widely used and are a key step in the promotion and application of various metal materials. Plate and strip rolling has received widespread attention due to its low cost, high quality and large output. However, when preparing plates and strips through traditional hot rolling processes, due to the different heat dissipation conditions between the edge and middle part, the upper surface and the lower surface of the material, the plastic deformation capacity of different parts will be greatly different, thus forming cracks at the edge of the hot-rolled formed product, reducing material utilization and forming quality, increasing manufacturing costs, and affecting the overall performance of the product. Especially in the rolling process of some metals that are more sensitive to temperature changes (such as magnesium, etc.), since the lower surface of the billet is in direct contact with the room temperature support platform of the rolling mill, the heat dissipation speed is faster than the upper surface, making the cracks on the edge of the lower surface more serious, resulting in low material utilization of hot-rolled plates and strips, poor forming quality, and poor overall product performance.

[0004] In view of this, the present invention proposes a device for applying and maintaining a certain temperature to a pre-rolling support platform and a rolled billet by induction heating, so as to achieve heat preservation and heating of the pre-rolling support platform and the rolled billet. Summary of the invention

[0005] The purpose of the present invention is to provide a pre-rolling support platform insulation and heating device to solve the above problems and achieve the purpose of improving forming efficiency, material utilization and improving the forming quality of hot-rolled plates and strips.

[0006] To achieve the above-mentioned purpose, the present invention provides the following scheme: a pre-rolling support platform insulation and heating device, the insulation and heating device comprising: a support platform body, a heating coil bracket, a heating coil, an electric control device, an infrared temperature sensor, and a wire; the support platform body is placed on the rolling mill frame platform and is fastened to the rolling mill frame by bolts, a heating coil bracket is placed inside the support platform body, the front end boss of the heating coil bracket is connected to the support platform body by screws, and a power supply interface is reserved above the front end boss of the heating coil bracket to allow current to be passed through the heating coil, the heating coil is wound and fixed on the outside of the heating coil bracket, and the infrared temperature sensor is arranged in the middle above the front end entrance of the heating coil bracket and is fastened to the heating coil bracket by screws.

[0007] Preferably, a plurality of through holes are processed on the bosses on both sides of the front end of the support platform body for connecting with the rolling mill frame through bolts, and the heating coil bracket and the heating coil are placed in the internal rectangular cross-section cavity.

[0008] Preferably, a rectangular cross-section groove is provided at the front entrance of the supporting platform body to accommodate the front end boss of the heating coil bracket, and a plurality of threaded holes are processed on the surface of the groove to fix the heating coil bracket by screws.

[0009] Preferably, the thickness of the inner wall at the upper end of the supporting platform body is greater than that of the other inner walls, and a rectangular cross-section groove is opened in the middle of the inner wall at the upper end to accommodate the protruding part of the heating coil.

[0010] Preferably, a rectangular through hole is opened at the rear end of the supporting platform body, and the front section of the through hole is chamfered at a large angle to guide the coil bracket to be installed to a proper position.

[0011] Preferably, the heating coil support is rectangular on the outside, with rounded corners on all sides, and a through-hole cavity with a rectangular cross-section on the inside, which is convenient for the rolled billet to be kept warm and heated therein and to enter the rolling area.

[0012] Preferably, a plurality of threaded holes are formed around the rectangular boss at the front end of the heating coil bracket for connection with the supporting platform body by screws; a power supply interface is reserved for the internal heating coil in the middle of the upper front end.

[0013] Preferably, a threaded hole is provided in the middle portion above the inlet of the front end portion of the heating coil bracket for fastening the infrared temperature sensor.

[0014] Preferably, the rear end of the heating coil bracket is chamfered at a large angle to facilitate the installation of the heating coil bracket to an appropriate position by cooperating with the chamfer of the opening at the rear of the supporting platform body; the front rear side boss guides the heating coil bracket into the installation position, and together with the rear end chamfer limits the position of the heating coil bracket in the supporting platform body, leaving space for the heating coil.

[0015] Preferably, the heating coil is wound according to the shape of the outer wall of the heating coil bracket and has a rectangular cross-section as a whole; the heating coil power connector is bent to the reserved power interface of the heating coil bracket.

[0016] The present invention has the following technical effects: the current parameters of the heating coil are set by the electric control equipment to control the heating temperature, the rolled billet is sent into the cavity of the heating coil bracket for insulation or heating treatment, the infrared temperature sensor monitors the temperature of the supporting platform and the rolled billet in real time and feeds back to the electric control equipment for correction, and when the temperature reaches the preset temperature for a certain time, it is sent to the rolling area for rolling treatment; it effectively avoids the local large number of cracks caused by uneven heat dissipation of the rolled billet in the traditional rolling process, improves the material utilization rate, and compared with the traditional hot rolling forming process, it can more accurately control the rolling temperature, thereby improving the surface quality and comprehensive performance of the rolled product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the explosion structure of the present invention; Figure 3 It is a half-section schematic diagram of the general assembly of the present invention; Among them, 1. rolling mill frame; 2. rolling rollers; 3. electronic control equipment; 4. wires; 5. bolts; 6. screws; 7. rolled billet; 8. heating coil bracket; 9. supporting platform body; 10. infrared temperature sensor 11. heating coil; 12. nuts. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] Reference Figure 1-3 The present embodiment provides a pre-rolling support platform insulation and heating device, the insulation and heating device comprises: a support platform body 9, a heating coil support 8, a heating coil 11, an infrared temperature sensor 10, an electric control device 3, and a wire 4; the support platform body 9 is placed on the rolling mill frame 1 platform and is fastened to the rolling mill frame 1 by bolts 5, the heating coil support 8 is placed inside the support platform body 9, the front end boss of the heating coil support 8 is connected to the support platform body 9 by screws 6, and a power supply interface is reserved above the front end boss of the heating coil support 8 to allow current to be passed through the heating coil 11, the heating coil 11 is wound and fixed on the outside of the heating coil support 8 to heat the inside thereof, the infrared temperature sensor 10 is arranged in the middle above the front end entrance of the heating coil support 8, and is fastened to the heating coil support 8 by screws to monitor and feedback the temperature of the support platform and the rolled billet 7 in real time.

[0022] To further optimize the solution, the current parameters of the heating coil 11 are set by the electric control device 3 to control the heating temperature, and the rolled billet 7 is sent into the cavity of the heating coil bracket 8 to be kept warm or heated, and then sent to the rolling area, so as to achieve the purpose of keeping the rolled billet 7 warm and heating.

[0023] To further optimize the solution, a plurality of through holes are processed on the bosses on both sides of the front end of the supporting platform body 9 for connecting with the rolling mill frame 1 through bolts 5, and the heating coil bracket 8 and the heating coil 11 are placed in the internal rectangular cross-section cavity.

[0024] To further optimize the solution, a rectangular cross-section groove is provided at the front end entrance of the supporting platform body 9 to accommodate the front end boss of the heating coil bracket 8, and a plurality of threaded holes are processed on the surface of the groove to fix the heating coil bracket 8 by screws 6.

[0025] According to a further optimization scheme, the thickness of the inner wall of the upper end of the supporting platform body 9 is greater than that of the other inner walls, and a rectangular cross-section groove is opened in the middle of the upper inner wall to accommodate the protruding part of the heating coil 11.

[0026] According to a further optimization scheme, a rectangular through hole is opened at the rear end of the supporting platform body 9 to facilitate the passage of the rolled billet 7, and the front section of the through hole is chamfered at a large angle to guide the coil support 8 to be installed to a proper position.

[0027] According to a further optimization scheme, the heating coil support 8 is rectangular on the outside, with rounded corners on all sides and a through-hole cavity with a rectangular cross section on the inside, which is convenient for the rolled billet 7 to be kept warm and heated therein and to enter the rolling area.

[0028] To further optimize the solution, a number of threaded holes are opened around the rectangular boss at the front end of the heating coil bracket 8 for connection with the supporting platform body 9 through screws 6; a power supply interface is reserved for the internal heating coil 11 in the middle of the upper front end.

[0029] To further optimize the solution, a threaded hole is opened in the middle above the entrance of the front end of the heating coil bracket 8 for fastening the infrared temperature sensor 10 to achieve real-time monitoring, feedback and timely correction of the temperature in the device.

[0030] To further optimize the solution, the rear end of the heating coil bracket 8 is chamfered at a large angle to facilitate the coordination with the chamfer of the opening at the rear of the supporting platform body 9 so that the heating coil bracket 8 can be installed to the appropriate position; the front rear side boss guides the heating coil bracket 8 into the installation position, and together with the rear end chamfer limits the position of the heating coil bracket 8 in the supporting platform body 9, leaving space for the heating coil 11.

[0031] According to a further optimization scheme, the heating coil 11 is wound according to the shape of the outer wall of the heating coil bracket 8, and has a rectangular cross-section as a whole; the power connector of the heating coil 11 is bent to the power interface reserved at the heating coil bracket 8, so as to facilitate the connection of current through the wire 4.

[0032] Compared with the traditional hot rolling process of plates and strips, the device of the present application avoids the waste of rolled materials, improves the material utilization rate and the temperature control accuracy, and because of the uniform insulation and heating of the pre-rolling support platform and the rolled billet, the situation of excessive heat dissipation and uneven heat dissipation on the surface of the rolled billet is greatly improved, thereby improving the forming quality of hot rolling. At the same time, because the rolling temperature control is more precise, the comprehensive performance of the rolled products is also improved.

[0033] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A pre-rolling support platform insulation and heating device, characterized in that: The heat preservation and heating device comprises: a supporting platform body (9), a heating coil support (8), a heating coil (11), an infrared temperature sensor (10), an electric control device (3), and a wire (4); the supporting platform body (9) is placed on the platform of a rolling mill frame (1) and is fastened to the rolling mill frame (1) by bolts (5); the heating coil support (8) is placed inside the supporting platform body (9); the front end boss of the heating coil support (8) is connected to the supporting platform body (9) by screws (6); and an electrical interface is left above the front end boss of the heating coil support (8); the heating coil (11) is wound and fixed on the outside of the heating coil support (8); the infrared temperature sensor (10) is arranged in the middle part above the front end entrance of the heating coil support (8) and is fastened to the heating coil support (8) by screws.

2. The pre-rolling support platform insulation and heating device according to claim 1, characterized in that: The front end of the support platform body (9) is provided with through holes on both sides of the bosses for connection with the rolling mill frame (1) via bolts (5), and the heating coil bracket (8) and the heating coil (11) are placed in the internal rectangular cross-section cavity.

3. The pre-rolling support platform insulation and heating device according to claim 2 is characterized in that: The front entrance of the support platform body (9) is provided with a rectangular cross-section groove to accommodate the front end boss of the heating coil bracket (8), and a plurality of threaded holes are processed on the surface of the groove.

4. The pre-rolling support platform insulation and heating device according to claim 2, characterized in that: The thickness of the inner wall at the upper end of the supporting platform body (9) is greater than that of the other inner walls, and a rectangular cross-section groove is opened in the middle of the inner wall at the upper end.

5. The pre-rolling support platform insulation and heating device according to claim 2, characterized in that: A rectangular through hole is formed at the rear end of the support platform body (9), and the front section of the through hole is chamfered at a large angle to guide the coil support (8) to be installed to a suitable position.

6. The pre-rolling support platform insulation and heating device according to claim 1, characterized in that: The heating coil support (9) is in the form of a rectangular parallelepiped on the outside, with rounded corners on the sides and a through-hole cavity with a rectangular cross section on the inside.

7. The pre-rolling support platform insulation and heating device according to claim 6, characterized in that: A plurality of threaded holes are formed around the rectangular boss at the front end of the heating coil bracket (8) for connection with the supporting platform body (9) via screws (6); a power supply interface is reserved at the middle position of the upper front end for the internal heating coil (11).

8. The pre-rolling support platform insulation and heating device according to claim 6, characterized in that: A threaded hole is formed in the middle portion above the inlet of the front end portion of the heating coil bracket (8) for fastening the infrared temperature sensor (10).

9. The pre-rolling support platform insulation and heating device according to claim 6, characterized in that: The rear end of the heating coil support (8) is chamfered at a large angle so as to cooperate with the chamfer of the rear opening of the support platform body (9) so that it can be installed in an appropriate position; the front rear side boss guides the heating coil support (8) into the installation position and, together with the rear end chamfer, limits the position of the heating coil support (8) in the support platform body (9), leaving space for the heating coil (11).

10. The pre-rolling support platform insulation and heating device according to claim 1, characterized in that: The heating coil (11) is wound in accordance with the shape of the outer wall of the heating coil support (8), and has an overall rectangular cross-section; the power connector of the heating coil (11) is bent to a reserved power interface of the heating coil support (8).

Images