Edge rolling equipment for nozzle fork production

Abstract

The utility model discloses edge rolling equipment for nozzle fork production, which comprises a pressurizing rack, a die, a pressing assembly, an adjusting lead screw and a rocker arm, one side of the pressurizing rack is rotatably connected with the die, the other side of the pressurizing rack is slidably connected with the pressing assembly, the side wall of the die is fixedly connected with a fixing nut for fixing a workpiece to be processed, and the adjusting lead screw is arranged on the side wall of the die. An arc-shaped pressing head is arranged at the end, close to the pressing assembly, of the mold, a fixing sleeve is fixedly connected to the end, close to the pressing assembly, of the pressurizing rack, the adjusting lead screw is connected into the fixing sleeve in a threaded fit mode, one end of the adjusting lead screw is fixedly connected with the rocker arm, and the other end of the adjusting lead screw is fixedly connected with the pressing assembly. The adjusting lead screw can adjust the distance between the pressing assembly and the arc-shaped pressing head. The device is simple in structure and convenient to operate, the pressing gap can be accurately controlled through the adjusting lead screw, high-precision machining of a mold is matched, the forming precision and the product consistency are effectively guaranteed, and the production efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of metallurgical equipment technology, and in particular to a special rolling forming equipment for steelmaking sprue production. Background Technology

[0002] The ladle nozzle fork (also known as the ladle guide fork or pouring fork) is a key tool used in continuous casting or ingot casting to control the flow of molten steel from the ladle to the tundish or mold. Its main functions include: 1) mechanically clearing blockages in the ladle nozzle (such as when using guide sand to seal the nozzle) to ensure smooth steel flow; 2) adjusting the angle or position of the nozzle fork to help control the flow rate and direction of molten steel, reducing turbulence and slag entrapment; 3) manually intervening to avoid production interruption when the nozzle fails to open automatically (such as when the guide sand does not fall off automatically), which is of great significance for ensuring the continuity of steelmaking production.

[0003] Traditional forklift manufacturing processes typically involve the following steps: cutting heat-resistant steel plates according to design drawings to form the basic shape of the fork head, followed by forming through methods such as hot forging, hydraulic bending, or rolling. However, this traditional process has several drawbacks: First, the process is complex, requiring multiple heating and forming steps, resulting in high energy consumption; second, ordinary rolling machines have limited processing capabilities for small-diameter workpieces, especially for arcs with diameters less than 100mm, making precise forming difficult; third, forming accuracy is difficult to control, resulting in poor consistency in product size and shape, affecting usability; and fourth, production efficiency is low, making it difficult to meet the needs of mass production.

[0004] Therefore, in response to the problems of complex processes, difficulty in machining small-diameter workpieces, and insufficient precision and efficiency in the traditional sprue fork production process, there is an urgent need for a dedicated rolling equipment to optimize the production process and improve the production quality and efficiency of sprue forks. Utility Model Content

[0005] The purpose of this invention is to provide a rolling device for the production of sprue forks, which can realize one-time cold bending forming of sprue forks, effectively improve production efficiency and product quality, and solve the above-mentioned problems existing in the prior art.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] This utility model discloses a rolling device for sprue fork production, comprising a press frame, a mold, a pressing assembly, an adjusting screw, and a rocker arm. The mold is rotatably connected to one side of the press frame, and the pressing assembly is slidably connected to the other side. A fixing nut for fixing the workpiece to be processed is fixedly connected to the side wall of the mold. An arc-shaped pressure head is provided at one end of the mold near the pressing assembly. A fixing sleeve is fixedly connected to the end of the press frame near the pressing assembly. The adjusting screw is internally threaded and connected to the adjusting screw. One end of the adjusting screw is fixedly connected to the rocker arm, and the other end is fixedly connected to the pressing assembly. The adjusting screw can adjust the distance between the pressing assembly and the arc-shaped pressure head.

[0008] Furthermore, the pressurizing frame has a U-shaped structure.

[0009] Furthermore, the two side walls of the press frame are symmetrically provided with sliding grooves. The pressing assembly includes a mounting base, a pressing wheel and a moving shaft. The two ends of the pressing wheel are respectively fixedly connected to the moving shaft. The two moving shafts pass through the two side walls of the mounting base and are connected in the sliding groove. The other end of the adjusting screw is fixedly connected to the mounting base.

[0010] Furthermore, the fixing nuts are symmetrically welded and fixed to both sides of the mold.

[0011] Furthermore, the adjusting screw adopts a trapezoidal thread with a pitch of 4mm.

[0012] Furthermore, the rocker arm is equipped with a non-slip rubber handle at its end, and the lever arm ratio is 1:5.

[0013] Furthermore, the mold and the press frame are connected by a detachable hinge.

[0014] Furthermore, the mold is made of high-strength steel plate by turning, and the surface roughness Ra≤3.2μm.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects:

[0016] This utility model discloses a rolling equipment for producing sprue forks. Through the coordinated operation of the mold and pressing components, it achieves one-time cold bending and integral forming of the sprue forks, eliminating the need for the heating process in traditional processes, significantly reducing energy consumption and meeting the requirements of energy-saving and environmentally friendly production. At the same time, the cold bending and integral forming process design reduces process steps, significantly improving production efficiency and meeting the needs of mass production. The equipment has a compact overall structure, small footprint, and is easy to operate. Furthermore, the precise cooperation between the mold and pressing components effectively improves the forming accuracy, ensuring good consistency in product size and shape, and greatly improving the product quality of the sprue forks. In addition, by changing the mold of different specifications, it can adapt to the processing needs of various models of sprue forks, demonstrating strong adaptability.

[0017] This invention effectively solves the problems of complex processes, difficulty in processing small-diameter workpieces, insufficient precision, and low efficiency in the traditional sprue fork manufacturing process, and is especially suitable for the precise cold bending forming of small-diameter sprue forks. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the main structure of the rolling equipment for sprue fork production according to the present invention.

[0020] Figure 2 This is a side view cross-sectional structural diagram of the rolling equipment for sprue fork production according to the present invention;

[0021] Figure 3 This is a top view of the rolling device for sprue fork production according to the present invention.

[0022] Figure 4 This is a three-dimensional structural diagram of the rolling equipment for sprue fork production according to this utility model.

[0023] Explanation of reference numerals in the attached drawings: 1. Press frame; 11. Bolt; 12. Sliding groove; 13. Fixing sleeve; 2. Mold; 21. Arc-shaped press head; 22. Fixing nut; 3. Pressing assembly; 31. Mounting base; 32. Pressing wheel; 33. Moving shaft; 4. Adjusting screw; 5. Rocker arm. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0025] In the description of this utility model, it should be understood that the terms "length", "width", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] like Figures 1 to 4 As shown, the rolling equipment for sprue fork production in this embodiment includes a press frame 1, a mold 2, a pressing component 3, an adjusting screw 4, and a rocker arm 5. The press frame 1 serves as a basic support structure. The mold 2 is rotatably connected to one side of the press frame 1, allowing the mold 2 to rotate within a certain range. The pressing component 3 is slidably connected to the other side, providing guidance for the movement of the pressing component 3. A fixing nut 22 for fixing the workpiece is fixed to the side wall of the mold 2, ensuring the stability of the workpiece position during processing. An arc-shaped pressing head 21 is provided at one end of the mold 2 near the pressing component 3. Specifically, the radius of the arc of the arc-shaped pressing head 21 is designed according to the product requirements of the sprue fork, preferably 80-120mm. A fixing sleeve 13 is fixed to the end of the press frame 1 near the pressing component 3. The adjusting screw 4 is internally threaded and connected to the adjusting screw 4. One end of the adjusting screw 4 is fixed to the rocker arm 5, and the other end is fixed to the pressing component 3. The adjusting screw 4 can adjust the distance between the pressing component 3 and the arc-shaped pressing head 21.

[0028] The press frame 1 has a U-shaped structure, with symmetrical sliding grooves 12 on both side walls to provide precise guide tracks for the movement of the pressing assembly 3. Specifically, the pressing assembly 3 includes a mounting base 31, a pressing wheel 32, and moving shafts 33. Moving shafts 33 are fixedly connected to both ends of the pressing wheel 32. The two moving shafts 33 pass through the side walls of the mounting base 31 and are fitted into the sliding grooves 12. The other end of the adjusting screw 4 is fixedly connected to the mounting base 31. Specifically, the pressing wheel 32 is made of GCr15 bearing steel, which has good wear resistance and high hardness, with a surface hardness of HRC58-62, a diameter of 80mm, and a width of 50mm. It is mounted on the mounting base 31 via a deep groove ball bearing, ensuring that the pressing wheel 32 rotates flexibly and rolls smoothly during the pressing process, reducing frictional resistance with the workpiece and making the pressing process more stable.

[0029] Specifically, fixing nuts 22 are symmetrically welded and fixed on both sides of the mold 2. The fixing nuts 22 are M12 standard nuts, and the welding is performed using CO2 gas shielded welding. This welding method can ensure that the welding strength is not less than 90% of the strength of the base material, and the center position error of the fixing nuts 22 is controlled within ±0.5mm.

[0030] Preferably, the adjusting screw 4 adopts a trapezoidal thread, which has good self-locking properties and transmission efficiency. Its pitch is 4mm. Specifically, the adjusting screw 4 adopts a trapezoidal thread Tr16×4 with a screw stroke of 100mm. By precisely controlling the number of rotations of the rocker arm 5 and combining it with the pitch of the trapezoidal thread, the gap between the pressing wheel 32 and the mold 2 can be precisely adjusted to meet different processing accuracy requirements.

[0031] At this time, the mold 2 and the press frame 1 adopt a detachable hinge connection. The press frame 1 is welded from Q235 steel plate. The press frame 1 is connected to the mold 2 by M16 bolts 11 to form a hinge structure, which facilitates the installation, disassembly and replacement of the mold 2 to meet the production needs of different specifications of sprue forks.

[0032] In this embodiment, the mold 2 is made of 45# high-strength steel plate by turning and the surface is quenched to make its hardness reach HRC40-45 and its surface roughness Ra≤3.2μm. The high strength and suitable hardness ensure that the mold 2 is not easily deformed during the pressing process and can withstand greater pressure, while the good surface roughness helps to reduce friction with the workpiece to be processed, improve the processing quality and the service life of the mold 2.

[0033] Among them, the rocker arm 5 is made of φ30mm seamless steel pipe, with a length of 700mm, and a rubber anti-slip handle is installed at the end. The lever arm ratio is 1:5, which makes operation easier.

[0034] In this embodiment, the rolling equipment for producing sprue forks is used as follows: First, one end of the iron plate to be processed (thickness 6-10mm) is inserted into the fixing nut 22 of the mold 2 and initially fixed with fixing bolts to ensure the iron plate is firmly positioned. Then, the rocker arm 5 is rotated, and the pressing assembly 3 is moved by adjusting the lead screw 4 to adjust the gap between the pressing roller 32 and the mold 2, so that the iron plate and the arc-shaped pressing head 21 of the mold 2 are initially in contact. Next, the rocker arm 5 is continued to be rotated, driving the pressing roller 32 to roll along the arc-shaped pressing head 21 of the mold 2, applying continuous pressure to the iron plate, so that the iron plate gradually bends along the contour of the mold 2. When the pressing roller 32 completes one revolution, the iron plate is completely in contact with the shape of the mold 2, forming the required arc, and the cold bending is completed. Finally, the fixing bolts of the fixing nut 22 are loosened, the formed workpiece is taken out, and the single processing is completed.

[0035] The rolling equipment for producing sprue forks in this embodiment achieves cold bending and one-piece forming of sprue forks through the synergistic action of the mold and pressing components. This eliminates the need for the heating process in traditional processes, significantly reducing energy consumption and making it more environmentally friendly. The equipment adopts a replaceable mold design, which can adapt to sprue fork products of various diameters and shapes by replacing molds of different specifications, making it highly adaptable. At the same time, the equipment has a simple structure and is easy to operate. The pressing gap can be precisely controlled by adjusting the lead screw. Combined with the high-precision processing of the mold, it effectively ensures forming accuracy and product consistency. The cold bending and one-piece forming process reduces process steps, greatly improves production efficiency, and can meet the needs of mass production. It solves the problems of difficult processing, low precision, and insufficient efficiency of small-diameter workpieces in traditional processes.

[0036] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A rolling device for sprue fork production, characterized in that, The assembly includes a press frame (1), a mold (2), a pressing component (3), an adjusting screw (4), and a rocker arm (5). The mold (2) is rotatably connected to one side of the press frame (1), and the pressing component (3) is slidably connected to the other side. A fixing nut (22) for fixing the workpiece is fixed to the side wall of the mold (2). An arc-shaped pressure head (21) is provided at one end of the mold (2) near the pressing component (3). A fixing sleeve (13) is fixed to the end of the press frame (1) near the pressing component (3). The adjusting screw (4) is internally threaded and connected to the adjusting screw (4). One end of the adjusting screw (4) is fixed to the rocker arm (5), and the other end is fixed to the pressing component (3). The adjusting screw (4) can adjust the distance between the pressing component (3) and the arc-shaped pressure head (21).

2. The rolling equipment for sprue fork production according to claim 1, characterized in that, The press frame (1) has a U-shaped structure.

3. A rolling device for sprue fork production according to claim 2, characterized in that, The two sides of the press frame (1) are symmetrically provided with sliding grooves (12). The pressing assembly (3) includes a mounting base (31), a pressing wheel (32) and a moving shaft (33). The two ends of the pressing wheel (32) are respectively fixedly connected to the moving shaft (33). The two moving shafts (33) pass through the two sides of the mounting base (31) and are connected in the sliding groove (12). The other end of the adjusting screw (4) is fixedly connected to the mounting base (31).

4. A rolling device for sprue fork production according to claim 1, characterized in that, The fixing nuts (22) are symmetrically welded and fixed on both sides of the mold (2).

5. A rolling device for sprue fork production according to claim 1, characterized in that, The adjusting screw (4) has a trapezoidal thread with a pitch of 4 mm.

6. A rolling device for sprue fork production according to claim 1, characterized in that, The rocker arm (5) is provided with a non-slip rubber handle at its end, and the lever arm ratio is 1:

5.

7. A rolling device for sprue fork production according to claim 1, characterized in that, The mold (2) and the press frame (1) are connected by a detachable joint.

8. A rolling device for sprue fork production according to any one of claims 1-7, characterized in that, The mold (2) is made of high-strength steel plate by turning, and the surface roughness Ra≤3.2μm.

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