Steel belt flattening equipment

Abstract

The invention discloses flattening equipment for a steel belt, which comprises a flattening assembly and further comprises a medium-frequency heating assembly, the medium-frequency heating assembly is mounted on one side of the flattening assembly, a cleaning assembly is mounted at one end, far away from the flattening assembly, of the medium-frequency heating assembly, and the medium-frequency heating assembly comprises a medium-frequency heating furnace and a heating coil mounted on the medium-frequency heating furnace; the cleaning assembly comprises a steam wheel, a gas transmission structure and a cleaning structure driven by the steam wheel, a cooling assembly is installed at the end, away from the medium-frequency heating assembly, of the flattening assembly, and the heating coil heats and softens the inner steel belt to relieve stress; the flattening assembly shapes and flattens the softened steel belt, and the shaped steel belt enters the cooling assembly to be cooled. According to the invention, the intermediate frequency heating furnace is used for preheating the steel strip and then the rolling process is carried out, so that compared with the traditional direct rolling mode, the use effect is obviously improved, and the fine crack defect caused by insufficient material plasticity in the rolling process is effectively avoided.

Description

Technical Field

[0001] This invention relates to the field of steel strip processing, and in particular to a steel strip flattening device. Background Technology

[0002] Steel strip is a narrow and long flat steel material, mainly divided into two categories: hot-rolled strip steel and cold-rolled strip steel. Rolled strip steel requires pickling, rolling, annealing and other processes, while hot-rolled strip steel is heated in a heating furnace and then subjected to rough rolling and descaling, finishing rolling and layer cooling coiling processes. The materials include plain carbon steel, stainless steel, spring steel and other materials. According to carbon content, it can be divided into low carbon, medium carbon, high carbon and alloy strip steel.

[0003] In existing steel strip processing technology, steel strips are usually hot-rolled into coils for easy transportation and storage. In actual use, the steel coils are directly flattened using a cold rolling mill. This process has significant drawbacks: because the cold rolling process forcibly changes the coil shape of the steel strip through mechanical force, it causes uneven plastic deformation inside the material, which in turn leads to the following problems: microstructural damage; cold rolling causes lattice slippage inside the steel strip, forming dislocation entanglements, generating micron-level cracks in stress concentration areas; the tensile strength of the steel strip decreases significantly after cold rolling, and the fatigue life is shortened. Such steel strips are only suitable for low-strength applications (such as ordinary structural parts). In high-strength applications such as automotive chassis and construction machinery, additional quenching and tempering treatment is required to eliminate internal defects, which increases production costs. Therefore, a steel strip flattening device is provided. Summary of the Invention

[0004] In view of the problems existing in the prior art, the present invention is proposed.

[0005] Therefore, the present invention aims to solve the technical problem that existing steel strips are prone to cracking when the internal stress cannot be flattened.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a steel strip flattening device, comprising a flattening assembly, and further comprising: A medium-frequency heating component is installed on one side of the leveling component, and a cleaning component is installed at the end of the medium-frequency heating component away from the leveling component. The medium-frequency heating component includes a medium-frequency heating furnace and a heating coil installed on the medium-frequency heating furnace. The cleaning assembly includes a steam turbine, a gas conveying structure, and a cleaning structure driven by the steam turbine. A cooling assembly is installed at the end of the flattening assembly away from the intermediate frequency heating assembly. The heating coil heats and softens the steel strip inside to eliminate stress. The flattening assembly shapes and flattens the softened steel strip, and the shaped steel strip enters the cooling assembly for cooling. The cooling assembly cools the steel strip to generate water vapor, which drives the steam turbine to rotate. The rotation of the steam turbine drives the cleaning structure to clean the steel strip that has not entered the heating coil. The steam after passing through the steam turbine enters the gas conveying structure for cooling, and the cooled water vapor is sprayed through the gas conveying structure to clean the steel strip.

[0007] In a preferred embodiment of the steel strip tying device of the present invention, the cleaning assembly further includes a cleaning chamber, a protective sleeve is installed on one side of the outer side of the cleaning chamber, an output shaft is rotatably installed inside the protective sleeve, and a steam wheel is installed at one end of the output shaft.

[0008] In a preferred embodiment of the steel strip tying device of the present invention, a steam pipe is installed on one side inside the protective sleeve, and a gas conveying structure is installed on the top of the steam pipe.

[0009] In a preferred embodiment of the steel strip tying device of the present invention, the air supply structure includes an air supply pipe, the air supply pipe is made of metal, a connecting pipe extending into the cleaning chamber is installed at the end of the air supply pipe, a distribution pipe is installed at the end of the connecting pipe, and three sets of nozzles are installed at the bottom of the distribution pipe.

[0010] In a preferred embodiment of the steel strip tying equipment of the present invention, the cleaning structure includes a mounting rod, which is installed inside the cleaning chamber. Three sets of cleaning roller brushes are rotatably mounted on one end of the mounting rod, and a driven gear is mounted on one end of the cleaning roller brushes via a shaft.

[0011] In a preferred embodiment of the steel strip flattening device of the present invention, a drive tooth is installed on one side of the mounting rod, and the drive tooth is connected to three sets of driven gears through a toothed chain.

[0012] In a preferred embodiment of the steel strip flattening device of the present invention, a turbine is mounted on the front side of the drive tooth, a worm gear is mounted on one side of the turbine, and the worm gear meshes with the output shaft through a bevel gear.

[0013] In a preferred embodiment of the steel strip flattening equipment described in this invention, a control cabinet is installed on the front of the medium-frequency heating furnace, and a heating shell is installed on the outside of the heating coil.

[0014] In a preferred embodiment of the steel strip flattening equipment of the present invention, the cooling assembly includes a cooling box structure, a gas collecting hood is installed on the top of the cooling box structure, a blower is installed on the top of the gas collecting hood, an exhaust port is installed at the outlet of the blower, the exhaust port is connected to a steam pipe through a pipeline, and steel plate positioning rollers are provided on both sides of the cooling box structure.

[0015] In a preferred embodiment of the steel strip flattening equipment of the present invention, the cooling box structure further includes a cold water tank, a limit roller is installed inside the cold water tank, and a pressure roller is installed on both sides of the limit roller.

[0016] In a preferred embodiment of the steel strip flattening device of the present invention, the flattening assembly includes a base, two sets of mounting frames are mounted on the top of the base, a drive motor is mounted on one side of the mounting frame, a drive roller is mounted on the rotor of the drive motor, and an adjusting roller structure is mounted on the top of the mounting frame.

[0017] In a preferred embodiment of the steel strip flattening device of the present invention, the adjusting roller structure includes an adjusting frame, a hydraulic telescopic rod is installed on the top of the adjusting frame, a movable plate is installed on the bottom of the hydraulic telescopic rod, and two sets of flattening rollers are installed between the movable plates.

[0018] The beneficial effects of this invention are as follows: This device innovatively uses a medium-frequency heating furnace to preheat the steel strip before implementing the rolling process. Compared with the traditional direct rolling method, its performance is significantly improved. It effectively avoids the micro-crack defects caused by insufficient material plasticity during rolling, allowing the rolled steel strip to maintain its original material strength while significantly reducing rolling resistance. This characteristic allows the same rolling device to handle steel strip materials of different strength grades, expanding the equipment's applicability. At the same time, it reduces rolling power requirements and saves overall costs. The cooling pool cools the rolled steel strip, ensuring the temperature stability required for subsequent processing. The recovered heat energy is converted into high-temperature steam to drive the self-cleaning system. On the one hand, it performs non-contact rinsing of the steel strip surface. The steam's penetrating characteristics effectively remove rolling residues without additional purification, reducing cleaning costs, while also preheating the steel strip. On the other hand, the steam's kinetic energy is converted into mechanical energy through a turbine device, driving the cleaning rollers for synchronous cleaning, rapidly improving cleaning efficiency. This energy recycling system realizes the full-process recovery and utilization of heat energy, reducing equipment operating costs from the source and improving product qualification rate. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of the overall axonometric structure of the device according to one embodiment of the present invention; Figure 2 This is a schematic diagram of a steam turbine structure according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the gas delivery structure according to one embodiment of the present invention; Figure 4 This is a schematic diagram of the cleaning structure according to one embodiment of the present invention; Figure 5 This is a schematic diagram of the internal structure of a medium-frequency heating assembly according to an embodiment of the present invention; Figure 6 A schematic diagram of the axial structure of the cooling assembly according to one embodiment of the present invention is provided. Figure 7 This is a schematic diagram of the internal structure of a cooling assembly according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the axial structure of the flattening component according to one embodiment of the present invention.

[0020] In the diagram: 100, leveling assembly; 101, base; 102, drive motor; 103, drive roller; 104, mounting frame; 105, adjusting roller structure; 105a, adjusting frame; 105b, hydraulic telescopic rod; 105c, movable plate; 105d, leveling roller; 200, medium-frequency heating assembly; 201, heating shell; 202, medium-frequency heating furnace; 203, heating coil; 204, control cabinet; 300, cleaning assembly; 301, cleaning chamber; 302, protective sleeve; 303, steam turbine; 304, output shaft; 305, steam pipe; 306, gas transmission structure. Structure; 306a, Air supply pipe; 306b, Connecting pipe; 306c, Air distribution pipe; 306d, Nozzle; 307, Cleaning structure; 307a, Mounting rod; 307b, Cleaning roller brush; 307c, Driven gear; 307d, Gear chain; 307e, Driving gear; 307f, Turbine; 307g, Worm rod; 308, Wastewater tank; 400, Cooling assembly; 401, Cooling box structure; 401a, Cold water tank; 401b, Limiting roller; 401c, Lowering roller; 402, Air collection hood; 403, Blower; 404, Exhaust port; 405, Steel plate positioning roller. Detailed Implementation

[0021] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, the present invention will be described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure will be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0024] Furthermore, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that mutually excludes other embodiments.

[0025] Example Reference Figure 1-8 This embodiment provides a steel strip flattening device, including a flattening assembly 100, and further comprising: The intermediate frequency heating component 200 is installed on one side of the leveling component 100. A cleaning component 300 is installed at the end of the intermediate frequency heating component 200 away from the leveling component 100. The intermediate frequency heating component 200 includes an intermediate frequency heating furnace 202 and a heating coil 203 installed on the intermediate frequency heating furnace 202. The intermediate frequency heating furnace 202 is a power supply device that converts 50Hz AC power into intermediate frequency (300Hz to 1000Hz). It rectifies the three-phase AC power into DC power, and then converts the DC power into an adjustable intermediate frequency current, which is supplied to the intermediate frequency alternating current flowing through the capacitor and the induction coil. This generates a high density of magnetic lines of force in the induction coil, which cuts the metal material placed in the induction coil and generates a large eddy current in the metal material, which can heat it up quickly in a few seconds. The heating coil 203 is a component of the intermediate frequency heating furnace 202.

[0026] The cleaning assembly 300 includes a steam wheel 303, a gas conveying structure 306, and a cleaning structure 307 driven by the steam wheel 303. A cooling assembly 400 is installed at the end of the flattening assembly 100 away from the medium frequency heating assembly 200. The heating coil 203 heats and softens the steel strip inside to eliminate stress. The flattening assembly 100 shapes the softened steel strip flat. The shaped steel strip enters the cooling assembly 400 for cooling. The cooling assembly 400 generates water vapor by cooling the steel strip. The water vapor drives the steam wheel 303 to rotate. The rotation of the steam wheel 303 drives the cleaning structure 307 to clean the steel strip that has not entered the heating coil 203. The steam after passing through the steam wheel 303 enters the gas conveying structure 306 for cooling. The cooled water vapor is sprayed through the gas conveying structure 306 to clean the steel strip. The cleaning assembly 300 also includes a cleaning chamber 301, which cleans the steel strip to quickly remove debris and prevent marks from being made on the steel strip during the tying process. A protective sleeve 302 is installed on one side of the cleaning chamber 301 to protect the internal output shaft 304 and steam wheel 303 from steam contamination. The output shaft 304 is rotatably mounted inside the protective sleeve 302, and the steam wheel 303 is installed at one end of the output shaft 304. The steam wheel 303 rotates under the drive of steam. The steam turbine absorbs a large amount of steam energy. A steam pipe 305 is installed on one side inside the protective sleeve 302. The outlet diameter of the steam pipe 305 is small, generating significant pressure that drives the steam turbine 303 to rotate rapidly. A gas delivery structure 306 is installed at the top of the steam pipe 305. The gas delivery structure 306 includes a gas delivery pipe 306a, which is made of metal and can be lengthened as needed. A connecting pipe 306b extending into the cleaning chamber 301 is installed at the end of the gas delivery pipe 306a, and a gas distribution pipe is installed at the end of the connecting pipe 306b. 306c, three sets of nozzles 306d are installed at the bottom of the air distribution pipe 306c. The cleaning structure 307 includes a mounting rod 307a, which is installed inside the cleaning chamber 301. Three sets of cleaning roller brushes 307b are rotatably mounted on one end of the mounting rod 307a. A driven gear 307c is mounted on one end of the cleaning roller brushes 307b via a shaft. A driving gear 307e is mounted on one side of the mounting rod 307a. The driving gear 307e is connected to the three sets of driven gears 307c via a gear chain 307d. A [missing information - likely a design element] is mounted on the front of the driving gear 307e. The turbine 307f has a worm gear 307g mounted on one side. The worm gear 307g meshes with the output shaft 304 through a bevel gear. The rotation of the output shaft 304 drives the turbine 307f and the worm gear 307g to rotate. The turbine 307f then drives the drive gear 307e and the driven gear 307c to rotate. The rotation of the driven gear 307c drives the cleaning roller brush 307b to rotate. While the cleaning roller brush 307b is rotating, it can use the water generated by steam to wash the steel plate, which can remove stubborn debris. A control cabinet 204 is mounted on the front of the medium-frequency heating furnace 202. A heating shell 201 is mounted on the outside of the heating coil 203. The cooling assembly 400 includes a cooling box structure 401. A gas collecting hood 402 is mounted on the top of the cooling box structure 401 to collect the generated water vapor and prevent its diffusion. A blower 403 is mounted on the top of the gas collecting hood 402. An exhaust port 404 is installed at the outlet of the blower 403. The exhaust port 404 is connected to a steam pipe 305 via a pipe. Steel plate positioning rollers 405 are provided on both sides of the cooling box structure 401. The cooling box structure 401 also includes a cooling... The water tank 401a is filled with cooling water. A water supply valve is located on one side of the cold water tank 401a. A limiting roller 401b is installed inside the cold water tank 401a to restrict the position of the steel strip, ensuring it contacts the cooling rollers. Lowering rollers 401c are installed on both sides of the limiting roller 401b. The flattening assembly 100 includes a base 101. Two sets of mounting brackets 104 are mounted on the top of the base 101. A drive motor 102 is mounted on one side of each mounting bracket 104. A drive roller 103 is mounted on the rotor of the drive motor 102, and the drive roller 103 drives the steel strip to move. The drive roller 103 is rotatable and flattens the material. An adjusting roller structure 105 is installed on the top of the mounting frame 104. The adjusting roller structure 105 can adjust the thickness between the devices. The adjusting roller structure 105 includes an adjusting frame 105a for fixing the device. A hydraulic telescopic rod 105b is installed on the top of the adjusting frame 105a. A movable plate 105c is installed at the bottom of the hydraulic telescopic rod 105b. Two sets of flattening rollers 105d are installed between the movable plates 105c. The flattening rollers 105d can press the steel strip into a flat state.

[0027] This embodiment has the following workflow: When in use, the steel strip needs to pass through the heating coil 203. Heated by the coil 203, it reaches a temperature between 500-600 degrees Celsius, softening it. Then, it enters the leveling assembly 100, where it is leveled and flattened. After leveling, the steel strip enters the cold water tank 401a, where it is cooled to return to its normal temperature. The steam generated during this cooling process is then fed into the gas delivery system by the blower 403. In structure 306, before entering the gas transmission structure 306, the steam wheel 303 is driven to rotate in the steam pipe 305. At this time, the steam wheel 303 drives the output shaft 304 to rotate, and the rotation of the output shaft 304 drives the worm gear 307g to rotate. The worm gear 307f drives the active gear 307e and the driven gear 307c to rotate. The rotation of the driven gear 307c drives the cleaning roller brush 307b to rotate to clean the surface of the steel plate. The cleaned steel plate enters the heating coil 203 for heating.

[0028] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention) may be omitted.

[0029] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0030] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A flattening apparatus for a steel strip comprising a flattening assembly, characterized in that, Also include: The intermediate frequency heating assembly is installed on one side of the flattening assembly, and a cleaning assembly is installed at one end of the intermediate frequency heating assembly away from the flattening assembly. The intermediate frequency heating assembly comprises an intermediate frequency heating furnace and a heating coil installed on the intermediate frequency heating furnace. The cleaning assembly comprises a steam wheel, a gas conveying structure and a cleaning structure driven by the steam wheel. The flattening assembly is provided with a cooling assembly at one end away from the intermediate frequency heating assembly. The heating coil heats and softens the steel strip inside to eliminate stress. The flattening assembly shapes and flattens the softened steel strip, and the shaped steel strip enters the cooling assembly for cooling. The cooling assembly cools the steel strip to generate water vapor, which drives the steam wheel to rotate. The rotation of the steam wheel drives the cleaning structure to clean the steel strip that has not entered the heating coil. The steam after the steam wheel enters the gas conveying structure for cooling, and the cooled water vapor is sprayed through the gas conveying structure to clean the steel strip.

2. The flattening apparatus for a steel strip according to claim 1, characterized in that: The cleaning assembly further comprises a cleaning bin, and a protective sleeve is installed on one side of the outside of the cleaning bin. An output shaft is rotatably installed in the protective sleeve. A steam wheel is installed at one end of the output shaft.

3. A flattening apparatus for a steel strip according to claim 2, characterized in that: A steam pipe is installed on one side of the inside of the protective sleeve. A gas conveying structure is installed at the top of the steam pipe.

4. The flattening apparatus for a steel strip according to claim 3, characterized in that: The gas conveying structure comprises a gas conveying pipe made of a metal pipe. A connecting pipe extending into the cleaning bin is installed at the end of the gas conveying pipe. A gas distribution pipe is installed at the end of the connecting pipe. Three groups of spray heads are installed at the bottom of the gas distribution pipe.

5. The flattening apparatus for a steel strip according to claim 1, characterized in that: The cleaning structure comprises an installation rod installed inside the cleaning bin. Three groups of cleaning roller brushes are rotatably installed at one end of the installation rod. A driven gear is installed at one end of the cleaning roller brush through a shaft rod.

6. A flattening apparatus for a steel strip according to claim 5, characterized in that: A driving gear is installed on one side of the installation rod. The driving gear is connected to the three groups of driven gears through a chain.

7. A flattening apparatus for a steel strip according to claim 6, characterized in that: A turbine is installed on the front of the driving gear. A worm gear is installed on one side of the turbine. The worm gear is engaged with the output shaft through a bevel gear.

8. The flattening apparatus for a steel strip according to claim 1, characterized in that: A control cabinet is installed on the front of the intermediate frequency heating furnace. A heating shell is installed on the outside of the heating coil.

9. The flattening apparatus for a steel strip according to claim 1, characterized in that: The cooling assembly comprises a cooling box structure. A gas collecting hood is installed at the top of the cooling box structure. A blower is installed at the top of the gas collecting hood. An exhaust port is installed at the outlet of the blower. The exhaust port is in communication with the steam pipe through a pipeline. Steel plate positioning rollers are arranged on both sides of the cooling box structure.

10. The flattening apparatus for a steel strip according to claim 9, characterized in that: The cooling box structure further comprises a cold water tank. Limiting rollers are installed inside the cold water tank. Lowering rollers are installed on both sides of the limiting rollers.

11. The flattening apparatus for a steel strip according to claim 1, characterized in that: The flattening assembly comprises a base. Two groups of mounting racks are installed at the top of the base. A driving motor is installed on one side of the mounting rack. A driving roller is installed on the rotor of the driving motor. An adjusting roller structure is installed at the top of the mounting rack.

12. The flattening apparatus for a steel strip according to claim 11, characterized in that: ​

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