High-precision deformed steel bar pouring device

By introducing a sealing shell and a filter device into the rebar casting device, and using the filter shell, filter screen and activated carbon to filter the flue gas, the harm of flue gas to human health and the environment during the casting process is solved, and high-precision and high-quality rebar production is achieved.

CN224073347UActive Publication Date: 2026-04-03YANGZHOU HUAHANG SPECIAL STEEL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-28
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

The fumes generated during the existing rebar casting process cause harm and pollution to human health and the environment, and also affect subsequent processes.

Method used

A high-precision threaded steel casting device including a sealing shell and a filter device was designed. The device uses a filter shell, filter screen, activated carbon and desiccant to filter the flue gas, and combines it with an air pump to remove the exhaust gas, ensuring the sealing and cleanliness of the casting process.

Benefits of technology

It effectively filters the waste gas generated during the casting process, reduces environmental pollution, protects the health of operators, and improves casting accuracy and the quality of rebar.

✦ Generated by Eureka AI based on patent content.

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Abstract

The high-precision deformed steel bar pouring device comprises a base and a mold, a mold cavity is formed in the mold, a sealing shell is further arranged on the base, the sealing shell is a rectangular shell with the hollow interior and the top open, the mold is placed in the sealing shell, two symmetrical lifting lugs are arranged on the upper surface of the mold, and the lifting lugs are arranged on the lower surface of the mold. A top cover is arranged on the top of the sealing shell, two symmetrically-arranged casting openings are formed in the top of the top cover, and the bottoms of the casting openings penetrate through the top cover and are located over the mold cavity. A gas outlet pipe is arranged at the upper end of the left side wall of the sealing shell, a gas inlet pipe is arranged at the lower end of the right side wall of the sealing shell, a filtering device is arranged at one end of the gas outlet pipe, and the filtering device is used for filtering waste gas generated during casting. The environmental pollution is reduced, and the health of operators is protected.
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Description

Technical Field

[0001] This utility model relates to the field of rebar production technology, and in particular to a high-precision rebar casting device. Background Technology

[0002] The rebar casting device is a specially designed equipment for casting rebar. It features high precision and automation to ensure the accuracy and efficiency of the casting process. The working principle of the high-precision rebar casting device is as follows: molten metal is poured into the container of the casting system, and the mold is preheated to ensure that the molten metal can cool and solidify rapidly during casting. The control system sends a signal to start the casting system, and the molten metal is accurately injected into the mold through the pouring port. The molten metal cools and solidifies in the mold to form the shape of rebar. When the rebar has completely cooled and solidified, the mold is opened and the rebar is removed.

[0003] In existing technologies, fumes are generated during the casting of rebar. These fumes need to be removed to avoid affecting subsequent processes. However, the fumes generated at high temperatures are easily inhaled by humans, causing harm, and direct emissions also pollute the environment.

[0004] To address these issues, a high-precision threaded steel casting device is proposed. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology and solve the problem of waste gas generated during the casting process, this utility model provides a high-precision threaded steel casting device.

[0006] This utility model is achieved using the following technical solution:

[0007] A high-precision threaded steel casting device includes a base and a mold. The mold has a cavity, and the base is also provided with a sealing shell. The sealing shell is a rectangular shell that is hollow inside and open at the top. The mold is placed inside the sealing shell. The upper surface of the mold has two symmetrical lifting lugs. The top of the sealing shell has a top cover. The top of the top cover has two symmetrically arranged casting ports. The bottom of the casting ports penetrates the top cover and is located directly above the mold cavity.

[0008] The upper end of the left side wall of the sealing shell is provided with an air outlet pipe, and the lower end of the right side wall is provided with an air inlet pipe. One end of the air outlet pipe is provided with a filter device, which is used to filter the waste gas generated during casting.

[0009] The filtering device includes a filter housing, with an air inlet and an air outlet on the left and right sides of the filter housing, respectively. The air inlet and the air outlet are fixedly connected by bolts, and the air outlet is connected to the input end of an external air pump.

[0010] Inside the filter housing, a filter screen is provided at one end near the air outlet. The interior of the filter housing is filled with activated carbon, and an inspection port is provided on the front of the filter housing.

[0011] The intake pipe is provided with a coarse dustproof net and a fine dustproof net on both sides, and a desiccant is placed between the coarse dustproof net and the fine dustproof net.

[0012] The lower surface of the top cover is provided with four guide posts, which are fixed around the top cover. The upper surface of the sealing shell is provided with matching guide holes.

[0013] The lower surface of the top cover is also provided with a locking block, and the upper surface of the sealing shell is provided with a matching sealing groove. When the top cover is fixed on the sealing shell, the guide post is inserted into the guide hole, and the locking block is inserted into the sealing groove.

[0014] The base is provided with a support column, the top of the support column is provided with a support plate, the bottom of the filter device is provided with a matching groove, and the filter device is placed on the support plate.

[0015] The present invention has the following advantages over the prior art:

[0016] 1. By setting up a sealing shell and a filter device, the filter device effectively filters the waste gas generated during the casting process, reduces environmental pollution, protects the health of operators, and the sealing shell is equipped with a top cover, while the mold is placed inside the sealing shell, which improves the sealing performance during the casting process, reduces splashing and oxidation of molten metal, and improves the casting accuracy of rebar.

[0017] 2. The dustproof and drying design of the air inlet pipe ensures the cleanliness and dryness of the casting process, thus improving the quality of the rebar. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 This is an exploded three-dimensional structural diagram of this utility model;

[0020] Figure 3 This is a schematic diagram of the front structure of this utility model;

[0021] Figure 4 This is a top view of the structure of this utility model;

[0022] Figure 5 This is a utility model Figure 4 Schematic diagram of the cross-sectional structure along the AA direction;

[0023] In the diagram: 1. Base; 11. Support column; 12. Support plate; 2. Sealing shell; 21. Air inlet pipe; 210. Coarse dustproof net; 211. Desiccant; 212. Fine dustproof net; 22. Air outlet pipe; 23. Guide hole; 24. Sealing groove; 3. Top cover; 31. Casting port; 32. Guide column; 33. Clamping block; 4. Filter shell; 41. Air outlet; 42. Filter screen; 43. Activated carbon; 44. Air inlet; 45. Inspection port; 5. Mold; 51. Lifting lug; 52. Mold cavity. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] like Figures 1 to 5 As shown, a high-precision threaded steel casting device includes a base 1 and a mold 5. The base 1 serves as the basic support component of the entire casting device, bearing the weight of components such as the mold 5, sealing shell 2, and support column 11, and ensuring the stability of the device during operation. The mold 5 has a mold cavity 52 inside. The base 1 is also equipped with a sealing shell 2 to completely enclose the mold 5, improving the sealing performance during the casting process, preventing molten metal splashing and oxidation, and collecting waste gas generated during casting. The sealing shell 2 is a rectangular shell that is hollow inside and open at the top. The mold 5 is placed inside the sealing shell 2 to improve the sealing during the casting process. The upper surface of the mold 5 is provided with two symmetrical lifting lugs 51. The design of the lifting lugs 51 facilitates the lifting and positioning of the mold 5. The top of the sealing shell 2 is provided with a top cover 3. The top of the top cover 3 is provided with two symmetrically arranged casting ports 31. The casting ports 31 are funnel-shaped to reduce the resistance when the molten metal is injected and improve the casting efficiency. The bottom of the casting ports 31 penetrates the top cover 3 and is located directly above the mold cavity 52 to ensure that the molten metal can be accurately and evenly injected into the mold cavity 52.

[0027] The upper end of the left side wall of the sealing shell 2 is provided with an air outlet pipe 22, and the lower end of the right side wall is provided with an air inlet pipe 21. One end of the air outlet pipe 22 is provided with a filter device, which is used to filter the waste gas generated during casting.

[0028] The filter device includes a filter housing 4, with an air inlet 44 and an air outlet 41 on the left and right sides of the filter housing 4, respectively. The air inlet 44 is fixedly connected to the air outlet pipe 22 by bolts, and the air outlet 41 is connected to the input end of an external air pump.

[0029] Inside the filter housing 4, a filter screen 42 is provided at one end near the air outlet 41. The filter screen 42 is used to block large particulate impurities. The interior of the filter housing 4 is filled with activated carbon 43, which is used to adsorb harmful gases. The front of the filter housing 4 is provided with an inspection port 45, which facilitates maintenance and replacement of activated carbon 43.

[0030] The air intake pipe 21 is equipped with a coarse dustproof net 210 and a fine dustproof net 212 on both sides. A desiccant 211 is placed between the coarse dustproof net 210 and the fine dustproof net 212. The desiccant 211 is used to absorb moisture in the air and prevent defects such as porosity and inclusions from occurring in the molten metal during the pouring process due to moisture. The desiccant 211 is usually made of a highly hygroscopic chemical substance, such as silica gel or calcium chloride. When air passes through the desiccant 211, the moisture in it is absorbed and fixed inside the desiccant 211, thereby keeping the air dry. The coarse and fine dustproof nets are used to block dust and impurities in the air, protecting the pouring process from external air pollution. The coarse dustproof net 210 and the fine dustproof net 212 are set in different positions to block particles of different sizes. The coarse dustproof net 210 is usually set at the front end of the air intake pipe 21 to block larger dust particles; the fine dustproof net 212 is set after the coarse dustproof net 210 to further filter fine particles in the air.

[0031] The lower surface of the top cover 3 is provided with four guide posts 32, which are fixed around the top cover 3. The upper surface of the sealing shell 2 is provided with matching guide holes 23. The design of the guide posts 32 and guide holes 23 ensures accurate alignment between the top cover 3 and the sealing shell 2.

[0032] The lower surface of the top cover 3 is also provided with a locking block 33, and the upper surface of the sealing shell 2 is provided with a matching sealing groove 24. When the top cover 3 is fixed on the sealing shell 2, the guide post 32 is inserted into the guide hole 23, and the locking block 33 is inserted into the sealing groove 24, further improving the sealing performance.

[0033] The base 1 is provided with a support column 11, and the top of the support column 11 is provided with a support plate 12. The bottom of the filter device is provided with a matching groove. The filter device is placed on the support plate 12. This design not only facilitates the installation and disassembly of the filter device, but also ensures the stability of the filter device during operation.

[0034] The working principle of this utility model is as follows: When using it, check whether each part of the device is intact, and ensure that the sealing shell 2, top cover 3, mold 5 and other parts are undamaged or deformed. Clean the inside of the mold 5 and sealing shell 2 to remove impurities and oil stains. Install the desiccant 211, dustproof net and other parts in place, and ensure that the air inlet pipe 21 and air outlet pipe 22 are unobstructed. Place the filter device on the support plate 12 and connect the air inlet pipe 21 and air outlet pipe 22.

[0035] Turn on the external air pump and introduce treated air through the air inlet pipe 21. At the same time, start the filter device to prepare to discharge the waste gas generated during the casting process. Pour the preheated molten metal into the mold 5 through the casting port 31. The molten metal fills the mold cavity 52 under the action of gravity and pressure. During the casting process, observe the flow of the molten metal to ensure that the molten metal fills the mold cavity 52 evenly and quickly, and avoid defects such as porosity and inclusions. When the molten metal in the mold 5 reaches the predetermined height, close the casting port 31 and stop the casting.

[0036] Wait for the molten metal to cool and solidify in mold 5 to form a rebar product. During the cooling process, the filter device continues to operate to discharge any waste gas that may be generated.

[0037] After the rebar product has fully cured, open the top cover 3, take out the mold 5 and the rebar product, clean the inside of the mold 5 and the sealing shell 2, remove any residual molten metal and impurities, and check and maintain the filter device, dust screen and other components to ensure they are in good condition.

[0038] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A high-precision threaded steel casting device, comprising a base and a mold, wherein the mold has a cavity, characterized in that, The base is also provided with a sealing shell, which is a rectangular shell that is hollow inside and open at the top. The mold is placed inside the sealing shell. The upper surface of the mold is provided with two symmetrical lifting lugs. The top of the sealing shell is provided with a top cover. The top of the top cover is provided with two symmetrically arranged casting ports. The bottom of the casting ports penetrates through the top cover and is located directly above the mold cavity. The upper end of the left side wall of the sealing shell is provided with an air outlet pipe, and the lower end of the right side wall is provided with an air inlet pipe. One end of the air outlet pipe is provided with a filter device, which is used to filter the waste gas generated during casting.

2. The high-precision threaded steel casting device according to claim 1, characterized in that: The filtering device includes a filter housing, with an air inlet and an air outlet on the left and right sides of the filter housing, respectively. The air inlet and the air outlet are fixedly connected by bolts, and the air outlet is connected to the input end of an external air pump. Inside the filter housing, a filter screen is provided at one end near the air outlet. The interior of the filter housing is filled with activated carbon, and an inspection port is provided on the front of the filter housing.

3. The high-precision threaded steel casting device according to claim 1, characterized in that: The intake pipe is provided with a coarse dustproof net and a fine dustproof net on both sides, and a desiccant is placed between the coarse dustproof net and the fine dustproof net.

4. The high-precision threaded steel casting device according to claim 1, characterized in that: The lower surface of the top cover is provided with four guide posts, which are fixed around the top cover. The upper surface of the sealing shell is provided with matching guide holes. The lower surface of the top cover is also provided with a locking block, and the upper surface of the sealing shell is provided with a matching sealing groove. When the top cover is fixed on the sealing shell, the guide post is inserted into the guide hole, and the locking block is inserted into the sealing groove.

5. The high-precision threaded steel casting device according to claim 1, characterized in that: The base is provided with a support column, the top of the support column is provided with a support plate, the bottom of the filter device is provided with a matching groove, and the filter device is placed on the support plate.