一种铸件浇注用排气结构
By designing an exhaust structure for casting pouring, including a main frame, exhaust pipe, filter screen, regulating valve, gas collection chamber, and support frame, the problem of porosity defects during casting pouring was solved, achieving efficient and stable exhaust effect and equipment adaptability, and extending service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO RUISHUO FOUNDRY MASCH CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-07-17
AI Technical Summary
In existing casting processes, insufficient removal of air and gas from the mold cavity leads to porosity defects in the castings. Traditional exhaust devices suffer from problems such as low exhaust efficiency, uneven exhaust, impurity entrainment, poor adaptability, and unstable connection.
An exhaust structure for casting is designed, including a main frame, exhaust pipe, filter screen, regulating valve, connecting flange, gas collection chamber, guide plate and support frame. The filter screen filters impurities, the regulating valve controls the exhaust volume, the gas collection chamber collects gas, the guide plate guides gas, and the support frame enhances stability, ensuring the high efficiency and stability of the exhaust system.
It effectively solves the problem of porosity defects during casting, improves exhaust efficiency and cleanliness, enhances the adaptability and stability of the equipment, extends its service life, and avoids environmental pollution.
Smart Images
Figure CN224508393U_ABST
Abstract
Claims
1. A venting structure for casting, comprising a main frame, characterized in that, An exhaust pipe is provided on the main frame, and a filter screen is provided inside the exhaust pipe. A regulating valve is also provided on the main frame and is connected to the exhaust pipe. A connecting flange is provided at the bottom of the main frame and is connected to the casting mold. An air collection chamber is provided at the outlet end of the exhaust pipe and a guide plate is provided inside the air collection chamber. A support frame is provided on the side wall of the main frame.
2. The exhaust structure for casting according to claim 1, wherein The filter screen is made of stainless steel wire mesh, and the mesh size of the filter screen is 0.1 mm to 0.5 mm.
3. The exhaust structure for casting according to claim 2, wherein The regulating valve is a butterfly valve structure, which includes a valve body and a valve plate. The valve plate is connected to the valve body via a rotating shaft, and a handle is provided on the rotating shaft.
4. The exhaust structure for casting according to claim 3, wherein The connecting flange is a circular flange with a diameter of 100 mm to 300 mm, and 8 to 12 bolt holes are evenly distributed on the circular flange.
5. The exhaust structure for casting according to claim 4, wherein The gas collection chamber has a cylindrical structure with a diameter larger than that of the exhaust pipe and a height that is 1.5 to 2 times the diameter.
6. The exhaust structure for casting according to claim 5, wherein The guide plate is an arc-shaped plate structure, and there are 3 to 5 arc-shaped plate structures. The multiple arc-shaped plate structures are distributed at equal intervals along the circumference in the air collection chamber.
7. The exhaust structure for casting according to claim 6, wherein The support frame includes multiple support rods arranged in a triangular pattern. One end of each support rod is connected to the main frame, and the other end of each support rod is provided with a base.
8. The exhaust structure for casting according to claim 7, wherein A sealing ring is provided inside the main frame. The sealing ring is located at the connection between the connecting flange and the main frame. The sealing ring is made of high-temperature resistant rubber.
9. The exhaust structure for casting according to claim 8, wherein The inner wall of the exhaust pipe is provided with a spiral guide groove, the pitch of the spiral guide groove is 10 mm to 20 mm, and the depth of the spiral guide groove is 2 mm to 5 mm.
10. The exhaust structure for casting according to claim 9, wherein An observation window is provided at the top of the main frame. The observation window is made of transparent high-temperature resistant glass and has a diameter of 50 mm to 100 mm.