Guide pipe structure of wire feeder

Abstract

The utility model belongs to the technical field of wire feeders, and relates to a guide pipe structure of a wire feeder. Comprising a main catheter (1) and a second catheter (2), the second catheter (2) comprises a connecting pipe (3), a thick pipe section (4) and a thin pipe section (5), the connecting pipe (3) is arranged at one end of the thick pipe section (4), the thin pipe section (5) is arranged at the other end of the thick pipe section (4), internal threads (6) are arranged in the connecting pipe (3), and the connecting pipe (3) is screwed and connected to external threads (7) at the rear end of the main catheter (1) through the internal threads (6). The guide pipe structure of the wire feeder is simple in structure, can ensure that a calcium wire cannot be clamped when entering molten steel, can straighten the calcium wire, improves the calcium yield, meanwhile, is convenient for partial replacement of the damaged guide pipe, improves the replacement efficiency, and reduces the cost.

Description

Technical Field

[0001] This utility model belongs to the field of wire feeder technology, and more specifically, relates to a wire feeder guide tube structure. Background Technology

[0002] In steelmaking technology, calcium treatment plays a crucial role. Through calcium treatment, inclusions in molten steel can be precisely modified, effectively improving their morphology and distribution, and reducing the adverse effects of high-melting-point inclusions on the production process, such as preventing nozzle blockage and improving continuous casting smoothness. Simultaneously, calcium treatment can further improve the purity of molten steel, reduce oxygen content, and enhance the mechanical and processing properties of the steel. Wire feeders, as one of the key pieces of equipment in calcium treatment, are widely used in steel plants and have high efficiency. Existing wire feeder guide tube technology: The main part of the wire feeder consists of guide wheels and a guide tube. Calcium wire is transported by the guide wheels to the guide tube, and then its direction is changed within the guide tube, entering the molten steel at a near-vertical angle. The disadvantages of the existing technology are: 1. The calcium wire is bent and coiled. After being fed out and passing through the guide tube, the calcium wire still has bending stress and cannot straighten completely. This results in insufficient insertion force into the molten steel, preventing deep insertion and potential deviation from the center of the molten steel, seriously affecting the calcium treatment effect and yield. To increase Ca recovery, the guide tube must be positioned as close as possible to the molten steel to mitigate the impact of insufficiently straight calcium wire. 2. Due to the high temperature of the molten steel and its boiling during wire feeding, the guide tube near the molten steel will continuously burn out, repeating the situation described in point 1. In this case, workers need to weld a small section of the guide tube back in. This method is labor-intensive and inefficient; if maintenance is not timely, it can also affect production.

[0003] Existing technology includes a patent titled "Immersion-Type Wire Feeding Sleeve, Wire Feeder, and Wire Feeding Method," with publication number CN107099642B. This technology belongs to the metallurgical field and specifically discloses an immersion-type wire feeding sleeve, a wire feeding machine, and a wire feeding method. It aims to solve the problem of poor and low yield stability when feeding easily burnable precious elements using existing wire feeding guides. The immersion-type wire feeding sleeve includes an inner sleeve, an outer sleeve fitted onto the inner sleeve, and an outer sleeve driving device. A scraping part is provided on the outer surface of the inner sleeve, and the scraping part is slidably connected to the outer sleeve. The outer sleeve driving device is connected to the outer sleeve and can drive the outer sleeve to move axially along the inner sleeve. The wire feeding machine includes the aforementioned immersion-type wire feeding sleeve. The wire feeding method is a method of feeding wire using the aforementioned wire feeding machine. Using the aforementioned immersion-type wire feeding sleeve can meet both the feeding requirements of normal wires and the feeding requirements of special wires made of easily burnable precious elements, and can significantly improve the yield of special wires. This technology does not involve the technical problems and solutions of this application. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a wire feeder guide structure that is simple in structure, can ensure that the calcium wire does not get stuck when entering the molten steel, can straighten the calcium wire and improve the calcium recovery rate, and can facilitate the replacement of the guide only when damaged, thereby improving the replacement efficiency and reducing the cost.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] This utility model is a wire feeder guide tube structure, including a main tube and a second guide tube. The second guide tube includes a connecting tube, a thick tube section and a thin tube section. A connecting tube is provided at one end of the thick tube section and a thin tube section is provided at the other end of the thick tube section. An internal thread is provided inside the connecting tube, and the connecting tube is screwed onto the external thread at the rear end of the main tube through the internal thread.

[0007] The front section of the main tube is a straight structure, while the rear section of the main tube is a downwardly curved structure.

[0008] The connecting tube, thick section, and thin section of the second conduit are an integral structure.

[0009] When the second conduit is connected to the external thread at the rear end of the main conduit via internal thread screwing, the thinner section of the second conduit is close to the ladle.

[0010] The main conduit is made of stainless steel, and the second conduit is made of cast iron.

[0011] The connecting tube of the second conduit has a circular tube structure, with the thicker section having a flared shape and the thinner section having a circular tube structure.

[0012] The large end of the thick pipe section is connected to the connecting pipe, and the small end of the thick pipe section is connected to the thin pipe section.

[0013] The inner diameter of the connecting pipe is 2-3 times the inner diameter of the thinner pipe section.

[0014] The inner diameter of the large end opening of the thick pipe section is equal to the inner diameter of the connecting pipe, and the inner diameter of the small end opening of the thick pipe section is equal to the inner diameter of the thin pipe section.

[0015] The described wire feeder conduit structure also includes a guide wheel assembly, through which the calcium wire enters the main guide tube and the second conduit.

[0016] The working principle and beneficial effects of this utility model are as follows:

[0017] The wire feeder guide tube structure of this utility model is configured as a main tube and a second guide tube, which are separate structures. During use, the second guide tube connects to the main tube. The lower end of the second guide tube is close to the molten steel and is easily damaged by the high temperature of the molten steel. Therefore, the second guide tube needs to be easy to connect, disassemble, and replace. The second guide tube 2 is connected to the main tube via an internal thread and an external thread, ensuring reliable connection and disassembly. The internal thread is located at the connecting tube position, which is far from the molten steel and is not easily affected by the molten steel. If the thinner section is damaged, the entire second guide tube can be replaced. Simultaneously, the second guide tube includes a connecting tube, a thicker section, and a thinner section, designed from top to bottom as thicker to thinner. The connecting tube connects to the main tube. Since the calcium wire will bend, the thicker part of the connecting tube and the thicker section facilitates the transport of the calcium wire. The thinner section, through its narrow tube length, can achieve a certain degree of straightening effect on the calcium wire, making it more penetrating and easier to feed to the bottom of the ladle. This ensures that the calcium wire is inserted into the molten steel with sufficient force and depth, and does not deviate from the center of the molten steel, effectively guaranteeing the calcium yield of the molten steel. Attached Figure Description

[0018] The following is a brief explanation of the contents depicted in the accompanying drawings and the markings therein:

[0019] Figure 1 This is a schematic diagram of the wire feeder guide tube structure described in this utility model;

[0020] Figure 2 This is a partial structural diagram of the wire feeder guide tube structure described in this utility model;

[0021] The labels in the attached diagram are as follows: 1. Main pipe; 2. Second conduit; 3. Connecting pipe; 4. Thick pipe section; 5. Thin pipe section; 6. Internal thread; 7. External thread; 8. Steel ladle; 9. Guide wheel assembly; 10. Calcium wire. Detailed Implementation

[0022] The following description, with reference to the accompanying drawings, provides a more detailed explanation of the specific embodiments of this utility model, including the shape and structure of each component, the relative positions and connections between the parts, the functions and working principles of each part:

[0023] As attached Figure 1 -Appendix Figure 2As shown, this utility model is a wire feeder guide tube structure, including a main guide tube 1 and a second guide tube 2. The second guide tube 2 includes a connecting tube 3, a thick tube section 4, and a thin tube section 5. The connecting tube 3 is installed at one end of the thick tube section 4, and the thin tube section 5 is installed at the other end. The connecting tube 3 has an internal thread 6 and is screwed onto the external thread 7 at the rear end of the main guide tube 1 through the internal thread 6. To address the shortcomings of the prior art, an improved technical solution is proposed. In this structural design, the guide tubes are configured as a main guide tube 1 and a second guide tube 2, which are separate structures. During use, the second guide tube 2 is connected to the main guide tube 1. The lower end of the second guide tube 2 is close to the molten steel and is easily damaged by the high temperature of the molten steel. Therefore, the second guide tube needs to be easy to connect and disassemble for easy replacement. The second guide tube 2 is screwed onto the external thread 7 of the main guide tube 1 through the internal thread 6, ensuring reliable connection and disassembly. The internal thread 6 is located at the position of the connecting tube 3, which is far from the molten steel and is not easily affected by it. If the thin tube section 5 is damaged, the entire second guide tube 2 can be replaced. Meanwhile, the second conduit 2 includes a connecting pipe 3, a thicker pipe section 4, and a thinner pipe section 5, designed from top to bottom with a thicker section. The connecting pipe 3 connects to the main pipe 1. Since the calcium wire will bend, the thicker part of the connecting pipe and the thicker pipe section facilitates the transport of the calcium wire. The thinner pipe section can straighten the calcium wire, making it more penetrating and easier to feed to the bottom of the ladle 8. This ensures that the calcium wire inserts into the molten steel with sufficient force and depth, without deviating from the center of the molten steel, effectively guaranteeing the calcium recovery rate of the molten steel. The wire feeder conduit structure described in this utility model is simple in structure, ensuring that the calcium wire does not get stuck when entering the molten steel, straightening the calcium wire, improving the calcium recovery rate, and facilitating only partial replacement when the conduit is damaged, improving replacement efficiency and reducing costs.

[0024] The front section of the main guide tube 1 is straight, while the rear section is curved downwards. This downward-curving rear section of the main guide tube 1 facilitates connection to the second guide tube, allowing it to extend close to the molten steel and ensuring reliable entry of the calcium wire into the molten steel.

[0025] The connecting tube 3, the thick section 4, and the thin section 5 of the second conduit 2 are an integral structure. This structure allows the second conduit to be integrally formed, resulting in a simple manufacturing process and good overall strength.

[0026] When the second conduit 2 is connected to the connecting pipe 3 via the internal thread 6 and the external thread 7 at the rear end of the main pipe 1, the thin section 5 of the second conduit 2 is close to the ladle 8. With this structure, the second conduit 2 can be easily connected and disconnected from the main pipe 1. If damaged, only the second conduit needs to be replaced, while the main pipe 1 can be used for a longer period, reducing the overall cost of the device.

[0027] The main tube 1 is made of stainless steel, and the second conduit 2 is made of cast iron. With this structure, the main tube can be used for a longer period due to the use of better materials. The second conduit needs to be replaced periodically, but it can be manufactured as a standard part; each time the second conduit 2 burns out, only the second conduit 2 needs to be replaced, without welding the entire conduit.

[0028] The connecting tube 3 of the second conduit 2 is a circular tube structure, the thicker section 4 has a flared shape, and the thinner section 5 is a circular tube structure. The larger end of the thicker section 4 connects to the connecting tube 3, and the smaller end connects to the thinner section 5. The inner diameter of the connecting tube 3 is 2-3 times the inner diameter of the thinner section 5. The inner diameter of the larger end opening of the thicker section 4 is equal to the inner diameter of the connecting tube 3, and the inner diameter of the smaller end opening of the thicker section 4 is equal to the inner diameter of the thinner section 5. This structure, the entire second conduit, is designed based on a thicker top and thinner bottom design. The thicker part facilitates the delivery of the calcium thread, while the thinner part facilitates the straightening of the calcium thread, making the calcium thread more penetrating and easier to feed to the bottom of the bag.

[0029] The wire feeder conduit structure also includes a guide wheel assembly 9. The calcium wire 10 passes through the guide wheel assembly 9 and enters the main guide tube 1 and the second conduit 2. In this structure, the guide wheel assembly rotates to transport the calcium wire, allowing it to pass through the main guide tube and the second conduit under the action of a conveying force and enter the molten steel.

[0030] The wire feeder guide structure of this utility model is configured as a main guide tube 1 and a second guide tube 2, which are separate structures. During use, the second guide tube 2 connects to the main guide tube 1. The lower end of the second guide tube 2 is close to the molten steel and is easily damaged by the high temperature of the molten steel. Therefore, the second guide tube needs to be easy to connect, disassemble, and replace. The second guide tube 2 is screwed to the main guide tube 1 via an internal thread 6 and an external thread 7, ensuring reliable connection and disassembly. The internal thread 6 is located at the connecting tube 3, which is far from the molten steel and is not easily affected by it. If the thin section 5 is damaged, the entire second guide tube 2 will be replaced. Meanwhile, the second guide tube 2 includes a connecting tube 3, a thick section 4, and a thin section 5, designed from top to bottom as thicker sections. The connecting tube 3 connects to the main guide tube 1. Since the calcium wire will bend, the thicker part of the connecting tube 3 and the thick section 4 facilitates the transport of the calcium wire. The thin section 5 straightens the calcium wire, making it more penetrating and easier to feed to the bottom of the ladle 8. This ensures that the calcium wire is inserted into the molten steel with sufficient force and depth, and does not deviate from the center of the molten steel, effectively guaranteeing the calcium yield of the molten steel.

[0031] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A wire feeder guide tube structure, characterized in that: It includes a main pipe (1) and a second conduit (2). The second conduit (2) includes a connecting pipe (3), a thick pipe section (4), and a thin pipe section (5). The connecting pipe (3) is provided at one end of the thick pipe section (4), and the thin pipe section (5) is provided at the other end of the thick pipe section (4). The connecting pipe (3) is provided with an internal thread (6). The connecting pipe (3) is screwed onto the external thread (7) at the rear end of the main pipe (1) through the internal thread (6).

2. The wire feeder guide tube structure according to claim 1, characterized in that: The front section of the main tube (1) is a straight structure, and the rear section of the main tube (1) is a curved downward structure.

3. The wire feeder guide tube structure according to claim 1 or 2, characterized in that: The connecting tube (3), the thick tube section (4), and the thin tube section (5) of the second conduit (2) are an integral structure.

4. The wire feeder guide tube structure according to claim 1 or 2, characterized in that: When the second conduit (2) is connected to the connecting pipe (3) by screwing the internal thread (6) onto the external thread (7) at the rear end of the main pipe (1), the thin section (5) of the second conduit (2) is close to the ladle (8).

5. The wire feeder guide tube structure according to claim 1 or 2, characterized in that: The main conduit (1) is made of stainless steel, and the second conduit (2) is made of cast iron.

6. The wire feeder guide tube structure according to claim 1 or 2, characterized in that: The connecting tube (3) of the second conduit (2) is a round tube structure, the thick tube section (4) is a trumpet-shaped structure, and the thin tube section (5) is a round tube structure.

7. The wire feeder guide tube structure according to claim 6, characterized in that: The large end of the thick pipe section (4) is connected to the connecting pipe (3), and the small end of the thick pipe section (4) is connected to the thin pipe section (5).

8. The wire feeder guide tube structure according to claim 1 or 2, characterized in that: The inner diameter of the connecting pipe (3) is 2-3 times the inner diameter of the thin pipe section (5).

9. The wire feeder guide tube structure according to claim 7, characterized in that: The inner diameter of the large end opening of the thick pipe section (4) is equal to the inner diameter of the connecting pipe (3), and the inner diameter of the small end opening of the thick pipe section (4) is equal to the inner diameter of the thin pipe section (5).

10. The wire feeder guide tube structure according to claim 1 or 2, characterized in that: The wire feeder conduit structure also includes a guide wheel assembly (9), through which the calcium wire (10) enters the main guide tube (1) and the second guide tube (2).

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