Quick cutting device for cast iron riser
The automatic clamping mechanism of the bidirectional threaded rod and the clamping plate, along with the speed-increasing transmission mechanism, enables the automatic cutting of cast iron risers. This solves the problems of low operating efficiency and high labor intensity of existing equipment, and improves the automation level and efficiency of casting processing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANYANG CHUANKONG CASTING CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-04-14
AI Technical Summary
Existing cast iron riser removal devices are inefficient and labor-intensive, making it difficult to meet the high efficiency and automation requirements of modern casting processing.
Automatic clamping is achieved by using a two-way threaded rod and a clamping plate. Combined with a speed-increasing transmission mechanism and an electric telescopic rod to drive the rotating plate, the casting is automatically pushed close to the cutting disc to achieve automatic cutting of the cast iron riser.
It improves the automation level of cast iron riser removal, significantly enhances work efficiency, reduces the labor intensity of workers, and meets the needs of high-efficiency and automated operation in modern foundry workshops.
Smart Images

Figure CN224115165U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cast iron riser removal technology, and in particular to a rapid cast iron riser removal device. Background Technology
[0002] A cast iron riser is an additional part added to a casting during the casting process to compensate for the volume shrinkage that occurs when the metal cools and solidifies. It is usually located at the top or end of the casting. It serves to store and replenish molten metal, ensuring that all parts of the casting are fully filled and preventing defects such as shrinkage cavities and porosity. After the casting is formed, the riser has no functional use and therefore needs to be removed during subsequent machining.
[0003] Existing cast iron riser removal devices generally suffer from low operating efficiency and high labor intensity. This is mainly manifested in the following ways: operators must manually place the casting onto the clamping mechanism and clamp it securely, then push the clamping mechanism along with the casting under the cutting mechanism for positioning and cutting. During the cutting process, manual operation of the cutting tool is still required to cut the riser. This traditional operating method is not only time-consuming and labor-intensive, but also severely impacts production efficiency, making it difficult to meet the requirements of modern casting processing for high efficiency and automation. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a rapid removal device for cast iron risers.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A quick-cutting device for cast iron risers includes a base, a support rod fixedly connected to the top of the base, a rotating plate rotatably connected to the top of the support rod, a first motor fixedly mounted on one end of the rotating plate, and a cutting disc rotatably connected to the other end of the rotating plate. A belt is provided between the output end of the first motor and the shaft of the cutting disc via a pulley. An electric telescopic rod is rotatably connected between the side wall of the support rod and one end of the rotating plate. A cutting mechanism for facilitating the removal of risers from iron parts is provided on the top of the base.
[0007] As a further embodiment of this utility model, the cutting mechanism includes a sliding plate slidably connected to the top of the base. The sliding plate is L-shaped, and a through groove is provided on the side wall of the sliding plate. The through groove is also L-shaped. A sliding rod is fixedly connected to the top of the base. A rack is slidably connected to the side wall of the sliding rod. A push column is fixedly connected to the bottom side wall of the rack. The push column passes through the interior of the through groove. One end shaft of the rotating plate passes through the side wall of the support rod and is fixedly connected to a large gear. A small gear meshes between the large gear and the rack. The small gear is rotatably connected to the side wall of the sliding rod through the support plate.
[0008] As a further embodiment of this utility model, a cutting table is fixedly connected to the top of the base, a groove is provided on the top of the cutting table, a bidirectional threaded rod is rotatably connected between the inner walls of the groove, and clamps are threadedly connected to the two ends of the outer wall of the bidirectional threaded rod through sliders. A second motor is fixedly connected to the side wall of the cutting table, and the output end of the second motor is fixedly connected to one end of the bidirectional threaded rod.
[0009] As a further embodiment of this utility model, the side wall of the cutting table is provided with a feeding ramp to facilitate the unloading of the cut-off header.
[0010] As a further embodiment of this utility model, a shield is fixedly connected to the side wall of the rotating plate near the outer wall of the cutting disc.
[0011] As a further embodiment of this utility model, the side wall of the clamp is fixedly connected with an anti-slip pad for preventing slippage.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] In this invention, by setting a bidirectional threaded rod and a clamping plate, the casting can be automatically clamped under the drive of a second motor without manual intervention, improving positioning efficiency and clamping stability. Secondly, the first motor drives the cutting disc to rotate via a belt, and in conjunction with the electric telescopic rod, drives the rotating plate to rotate. During the rotation of the rotating plate, the large gear rotates, and the large gear and the small gear form a speed-increasing transmission mechanism. The small gear drives the rack to move upward along the slide rod, and pushes the sliding plate along the through groove through the push column, so that the casting automatically moves closer to the bottom of the cutting disc to complete the cutting. There is no need for manual pushing of the casting or operation of the cutting blade. This structure effectively avoids the problems of manual clamping, manual pushing, and manual cutting in traditional cutting methods, greatly improving the degree of automation, significantly improving work efficiency, reducing the labor intensity of workers, and meeting the needs of modern foundry workshops for efficient and automated operation. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of a quick-cutting device for cast iron risers proposed in this utility model;
[0015] Figure 2 This is a side view of the structure of a quick-cutting device for cast iron risers according to the present invention;
[0016] Figure 3 This is a schematic diagram of the sliding plate and through groove structure of this utility model;
[0017] Figure 4 This is a schematic diagram of the cutting table and unloading ramp structure of this utility model.
[0018] In the diagram: 1. Base; 2. Support rod; 3. Rotating plate; 4. First motor; 5. Cutting disc; 6. Belt; 7. Electric telescopic rod; 8. Sliding plate; 9. Through groove; 10. Slide rod; 11. Rack; 12. Push column; 13. Large gear; 14. Small gear; 15. Cutting table; 16. Groove; 17. Bidirectional threaded rod; 18. Clamping plate; 19. Second motor; 20. Unloading ramp; 21. Shielding cover. Detailed Implementation
[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0022] Reference Figures 1-4A quick-cutting device for cast iron risers includes a base 1, a support rod 2 fixedly connected to the top of the base 1, a rotating plate 3 rotatably connected to the top of the support rod 2, a first motor 4 fixedly mounted on one end of the rotating plate 3, and a cutting disc 5 rotatably connected to the other end of the rotating plate 3. A belt 6 is provided between the output end of the first motor 4 and the shaft of the cutting disc 5 via a pulley. An electric telescopic rod 7 is rotatably connected between the side wall of the support rod 2 and one end of the rotating plate 3. A cutting mechanism for conveniently cutting iron risers is provided on the top of the base 1. The cutting mechanism includes a sliding plate 8 slidably connected to the top of the base 1. The sliding plate 8 is L-shaped, and a through groove 9, also L-shaped, is opened on the side wall of the sliding plate 8. A sliding rod 10 is fixedly connected to the top of the base 1, and a rack 11 is slidably connected to the side wall of the sliding rod 10. A pushing column 12 is fixedly connected to the bottom side wall of the rack 11, and the pushing column 12 penetrates the interior of the through groove 9. One end of the rotating plate 3 has a shaft that passes through the side wall of the support rod 2 and is fixedly connected to a large gear 13. A small gear 14 meshes between the large gear 13 and the rack 11. The small gear 14 is rotatably connected to the side wall of the slide rod 10 through the support plate. A cutting table 15 is fixedly connected to the top of the base 1. A groove 16 is provided on the top of the cutting table 15. A bidirectional threaded rod 17 is rotatably connected between the inner walls of the groove 16. The two ends of the outer wall of the bidirectional threaded rod 17 are connected to the clamping plate 18 by a slider thread. A second motor 19 is fixedly connected to the side wall of the cutting table 15. The output end of the second motor 19 is fixedly connected to one end of the bidirectional threaded rod 17. A feeding ramp 20 is provided on the side wall of the cutting table 15 to facilitate feeding the cut-off head. A shield 21 is fixedly connected to the side wall of the rotating plate 3 near the outer wall of the cutting disc 5. The shield 21 is used to shield the debris generated during cutting. An anti-slip pad is fixedly connected to the side wall of the clamping plate 18 for anti-slip purposes.
[0023] In this embodiment, when the cutting mechanism is in use, the casting is first placed on the top of the cutting table 15. After the power is turned on, the first motor 4 and the second motor 19 are started in sequence. After the second motor 19 starts, it drives the bidirectional threaded rod 17 to rotate. The bidirectional threaded rod 17 drives the two clamping plates 18 to move towards each other through the slider, thereby firmly clamping the casting. Then, the first motor 4 is started, which drives the cutting disc 5 to rotate at high speed through the belt 6. At the same time, the electric telescopic rod 7 begins to extend, driving the rotating plate 3 to rotate along the top of the support rod 2. When the rotating plate 3 rotates, one end of it drives the cutting disc 5 to rotate synchronously, and at the same time, the large gear 13 rotates. The large gear 13 drives the small gear 14 to rotate through meshing. Taking advantage of the larger diameter of the large gear 13 and the smaller gear 14, the large gear 13 drives the small gear 14 to rotate. The smaller diameter of the structure enables the pinion 14 to rotate at high frequency, thereby pushing the rack 11 that it meshes with to move upward along the side wall of the slide bar 10. During the upward movement of the rack 11, the push column 12 slides upward. The push column 12 moves in the through groove 9 and pushes the sliding plate 8 to slide along the guide rail towards the cutting disc 5, so that the casting fixed on the cutting table 15 gradually moves to below the cutting disc 5, completing the precise cutting of the riser. When the push column 12 moves to the upper end of the through groove 9, the sliding plate 8 stops moving forward, and the cutting process is completed. The cut riser falls to the top of the unloading ramp 20 and rolls out of the base 1 naturally under the guidance of its inclined structure. No manual intervention is required, making the operation convenient and effectively improving work efficiency and safety.
[0024] From the above description, it can be seen that the above embodiments of this utility model achieve the following technical effects: By setting the bidirectional threaded rod 17 and the clamping plate 18, the casting can be automatically clamped under the drive of the second motor 19 without manual intervention, which improves the positioning efficiency and clamping stability. Secondly, the first motor 4 drives the cutting disc 5 to rotate through the belt 6, and in conjunction with the electric telescopic rod 7, drives the rotating plate 3 to rotate. During the rotation of the rotating plate 3, the large gear 13 is driven to rotate. The large gear 13 and the small gear 14 form a speed-increasing transmission mechanism. The small gear 14 drives the rack 11 to move upward along the slide rod 10, and pushes the sliding plate 8 along the through groove 9 through the push column 12, so that the casting automatically moves closer to the bottom of the cutting disc 5 to complete the cutting. There is no need to manually push the casting or operate the cutting blade. This structure effectively avoids the problems of manual clamping, manual pushing, and manual cutting in traditional cutting methods, greatly improves the degree of automation, significantly improves work efficiency, reduces the labor intensity of workers, and meets the needs of modern foundry workshops for efficient, safe, and automatic operation.
[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A quick-cutting device for cast iron risers, comprising a base (1), characterized in that, A support rod (2) is fixedly connected to the top of the base (1), and a rotating plate (3) is rotatably connected to the top of the support rod (2). A first motor (4) is fixedly installed at the top of one end of the rotating plate (3), and a cutting disc (5) is rotatably connected to the other end of the rotating plate (3). A belt (6) is provided between the output end of the first motor (4) and the shaft of the cutting disc (5) through a pulley. An electric telescopic rod (7) is rotatably connected between the side wall of the support rod (2) and one end of the rotating plate (3). A cutting mechanism for convenient removal of cast iron risers is provided on the top of the base (1).
2. The rapid removal device for cast iron risers according to claim 1, characterized in that, The cutting mechanism includes a sliding plate (8) slidably connected to the top of the base (1). The sliding plate (8) is L-shaped. A through groove (9) is provided on the side wall of the sliding plate (8). The through groove (9) is also L-shaped. A sliding rod (10) is fixedly connected to the top of the base (1). A rack (11) is slidably connected to the side wall of the sliding rod (10). A push column (12) is fixedly connected to the bottom side wall of the rack (11). The push column (12) passes through the inside of the through groove (9). One end of the rotating plate (3) has a shaft that passes through the side wall of the support rod (2) and is fixedly connected to a large gear (13). A small gear (14) meshes between the large gear (13) and the rack (11). The small gear (14) is rotatably connected to the side wall of the sliding rod (10) through the support plate.
3. The rapid removal device for cast iron risers according to claim 1, characterized in that, A cutting table (15) is fixedly connected to the top of the base (1). A groove (16) is provided on the top of the cutting table (15). A bidirectional threaded rod (17) is rotatably connected between the inner walls of the groove (16). The two ends of the outer wall of the bidirectional threaded rod (17) are connected to a clamp (18) by a slider thread. A second motor (19) is fixedly connected to the side wall of the cutting table (15). The output end of the second motor (19) is fixedly connected to one end of the bidirectional threaded rod (17).
4. The rapid removal device for cast iron risers according to claim 3, characterized in that, The side wall of the cutting table (15) is provided with a feeding ramp (20) to facilitate the feeding of the cut-off header.
5. The rapid removal device for cast iron risers according to claim 1, characterized in that, A shield (21) is fixedly connected to the side wall of the rotating plate (3) near the outer wall of the cutting disc (5).
6. The rapid removal device for cast iron risers according to claim 3, characterized in that, The side wall of the clamp (18) is fixedly connected with an anti-slip pad for preventing slipping.