Adjustable paddle casting equipment
By eliminating necking, chilling iron and quenching sand, and adopting slag nests, multi-point pouring, exhaust pipes and filtering devices, the problems of casting defects and high costs in adjustable pitch casting equipment are solved, and efficient and low-cost casting production is achieved.
Patent Information
- Application Number
- CN202422795440.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-11-18
AI Technical Summary
Existing adjustable pitch casting equipment is prone to causing casting cracks, segregation and inclusion defects if the necking compensation design is not appropriate, and the process yield is low and the cost is high.
The design eliminates the feeding neck, chill iron and chill sand. The residue is collected through the slag collection nest, multi-point casting and exhaust pipe are used to exhaust gas. The filter device is combined to remove impurities, ensuring that the casting liquid evenly fills the mold cavity, and the feeding channel is used for effective feeding.
It improves the quality and yield of castings, reduces labor and tooling costs, reduces post-processing steps, and ensures the integrity and uniformity of castings.
Smart Images
Figure CN223405951U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of oar manufacturing equipment, in particular to an adjustable oar casting device. Background Art
[0002] Existing adjustable pitch casting equipment requires necking compensation before casting. During the adjustable pitch casting process, auxiliary means such as necking compensation, chilled iron and chilled sand are needed to ensure the quality and integrity of the casting.
[0003] However, there are still some problems with the use of supplementary necking. Improper design of supplementary necking may lead to casting cracks, segregation and inclusion defects, affecting the overall quality of the product.
[0004] Yield: Due to the existence of necking, the dimensional shrinkage of the casting may become unstable, resulting in an increase in the number of scrapped products and a decrease in the yield.
[0005] Cost: The complex necking design and processing process increase tooling costs, while a large amount of manual operation also increases labor costs.
[0006] The adjustable propeller cast by traditional technology has problems such as slag inclusion and serious pinholes in the blades and flanges, resulting in large processing allowances, requiring large-area welding and causing serious deformation. Utility Model Content
[0007] In order to solve the above technical problems, the utility model provides an adjustable-paddle casting device.
[0008] The utility model provides an adjustable-pitch casting device adopting the following technical solutions:
[0009] An adjustable paddle casting device includes a casting device, a blade mold, a casting platform and a second riser. The second riser is arranged on the casting platform, the blade mold is arranged on one side of the second riser and is in communication with the second discharge port. The casting platform has a slag collection nest, and the slag collection nest is in communication with the second riser. The casting device is used to inject casting liquid into the second riser and fill the blade mold.
[0010] Optionally, a riser 1 in fluid communication with the riser 2 is provided on the top of the riser 2.
[0011] Optionally, the blade mold is provided with a riser three communicating with the interior of the blade mold, and the riser three is provided at the top of the blade mold.
[0012] Optionally, the riser three has an exhaust port, and the exhaust port is provided with an exhaust pipe.
[0013] Optionally, a pouring pipe is provided on the pouring platform, and the pouring device is injected into the second riser through the pouring pipe.
[0014] Optionally, a plurality of casting pipes are arranged at intervals along the circumference of the riser 2, a casting ring is provided in the casting platform, a plurality of casting pipes are provided on the casting ring, and the casting ring has an inlet, which is in communication with the casting device.
[0015] Optionally, the casting device includes a transverse runway and a sprue, the sprue is used to flow the casting liquid into the transverse runway, and the transverse runway is in circulation with the casting ring.
[0016] Optionally, a filtering device is provided between the horizontal runway and the sprue.
[0017] Optionally, the filtering device is overlapped at the connection between the horizontal runway and the vertical runner.
[0018] Optionally, a feeding channel is provided between the second riser and the third riser.
[0019] To sum up, the utility model includes at least one of the following beneficial technical effects: through the above design, the necking, cold iron and chilling sand are eliminated, the riser is reduced, the workers are easier to operate in the molding process, the quality is improved, the post-processing steps are reduced, the labor cost is reduced, and the process output rate is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0021] Figure 1 It is a partial cross-sectional view of an embodiment of the utility model;
[0022] Figure 2 It is a partial structural diagram of an embodiment of the present utility model.
[0023] Explanation of the accompanying symbols: 1. Blade mold; 2. Casting table; 3. Riser 1; 4. Riser 2; 5. Riser 3; 6. Exhaust pipe; 7. Casting pipe; 8. Slag collection pit; 9. Horizontal runway; 10. Vertical runner; 11. Filter device; 12. Shrinkage feeding channel. DETAILED DESCRIPTION
[0024] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different perspectives and applications without departing from the spirit of the present invention.
[0025] The following is combined with Figure 1-2 The utility model is described in further detail.
[0026] The embodiment of the utility model discloses an adjustable-paddle casting device.
[0027] Reference Figure 1 、 Figure 2 , an adjustable paddle casting device, including a pouring device, a blade mold 1, a pouring table 2, a riser 1 3 and a riser 2 4, the blade mold 1 is provided with a riser 3 5 that is in communication with the inside of the blade mold 1, the riser 2 4 is provided on the pouring table 2, the riser 2 4 has a discharge port 1 and a discharge port 2, the riser 1 3 is provided above the riser 2 4 and is in communication with the discharge port 1, the blade mold 1 is provided on one side of the riser 2 4 and is in communication with the discharge port 2, the pouring table 2 has a slag collection nest 8, the slag collection nest 8 is in communication with the riser 2 4, and the pouring device is used to inject pouring liquid into the riser 2 4 and fill the blade mold 1. The above design eliminates the need for necking, chilling iron and chilling sand, reduces the riser size, makes it easier for workers to operate in the molding process, improves the quality, reduces the post-processing steps, reduces labor costs, and greatly improves the process yield.
[0028] In this embodiment, the casting platform 2 serves as the basis for supporting the blade mold 1, riser 1 3, riser 2 4 and riser 3 5. Riser 2 4 is installed on the casting platform 2. A slag collecting nest 8 is formed in the center of the casting platform 2 in a groove, so that the residues of riser 1 3, riser 2 4, the blade mold 1 and riser 3 5 flow into and settle in the slag collecting nest 8 under the action of gravity, so that the purity of the blade mold 1 is high, the quality is improved, the post-processing steps are reduced, the labor cost is reduced, and the process output rate is greatly improved.
[0029] A slag collecting nest 8 is provided in the casting device for collecting and settling slag, thereby improving the quality of the casting, reducing defects and scrap rate, and lowering production costs.
[0030] In this embodiment, a blade mold 1 is provided on the side wall of the second riser 4. The blade mold 1 is used to cast the adjustable slurry. When the blade mold 1 is filled with casting liquid and completely cooled, the adjustable slurry is formed.
[0031] In this embodiment, multiple blade molds 1 can be provided along the circumference of riser 2 4 , improving the casting efficiency of the blade mold 1 . Multiple adjustable slurries can be cast at one time, significantly improving work efficiency. Specifically, two blade molds 1 are provided along the circumference of riser 2 4 , with the two blade molds 1 being positioned opposite each other on either side of riser 2 4 .
[0032] In this embodiment, the riser 3 5 has an exhaust port, and the exhaust port is provided with an exhaust pipe 6. The pouring liquid enters the blade mold 1 through the riser 2 4, and then enters the blade mold 1. The excess pouring liquid enters the riser 3 5. The exhaust pipe 6 is used to discharge the excess air in the entire pouring process through the exhaust pipe 6. Timely discharge of gas through the exhaust pipe 6 can effectively reduce defects such as pores and slag inclusions inside the casting, improve the qualification rate and overall quality of the casting, and the exhaust pipe 6 can also help control the solidification process of the casting, reduce shrinkage cavities, shrinkage and other problems caused by gas retention, so that the pouring liquid can fill the mold cavity more smoothly, and improve the pouring efficiency. At the same time, the exhaust pipe 6 can also help adjust the pressure distribution in the blade mold 1, so that the casting is subjected to more uniform pressure during the solidification process, thereby obtaining better organizational structure and mechanical properties.
[0033] A pouring pipe 7 is provided on the pouring platform 2, and the pouring device injects the liquid into the riser 2 4 through the pouring pipe 7. Specifically, a plurality of pouring pipes 7 are provided at intervals along the circumference of the riser 2 4. A pouring ring is provided in the pouring platform 2, and a plurality of pouring pipes 7 are provided on the pouring ring. The pouring ring has an inlet, and the inlet is in communication with the pouring device. Since the pouring liquid is poured from bottom to top through the pouring pipe 7, pouring from bottom to top helps to push the air and gas in the mold cavity to move upward and be discharged through the exhaust pipe 6 provided at the top of the mold. This pouring method helps to reduce the retention of gas in the casting, thereby reducing the risk of defects such as pores and slag inclusions. Pouring from bottom to top allows the pouring liquid to fill the mold cavity more smoothly, especially in molds with complex shapes. This flow method helps to reduce the eddy currents and turbulence of the pouring liquid, thereby reducing the possibility of defects such as shrinkage cavities and shrinkage in the casting.
[0034] Multiple pouring tubes 7, distributed along the circumference, create multi-point pouring, ensuring that the pouring liquid more evenly fills the mold cavity. This uniform filling helps reduce defects caused by uneven pouring liquid flow, such as eddies, turbulence, and cold shuts. Multi-point pouring helps push air and gas within the mold cavity toward the top and edges of the mold, where they are discharged through appropriately positioned exhaust pipes 6. This helps reduce gas retention in the casting, thereby reducing the risk of defects such as porosity and slag inclusions.
[0035] The pouring device includes a horizontal runway 9 and a sprue 10. The sprue 10 is used to flow the pouring liquid into the horizontal runway 9. The horizontal runway 9 is in circulation with the pouring ring.
[0036] The sprue 10 serves as the starting section in the casting device. Its main function is to guide the casting liquid (such as molten copper) from an external source and flow it into the runway 9, so that the liquid can be quickly and smoothly transported during the casting process, facilitating the inflow of the liquid. The runway 9 is a key channel in the casting device, which is responsible for further guiding the casting liquid flowing into the sprue 10 to the casting ring. The runway 9 plays an important connecting role between the sprue 10 and the mold cavity. They work together to ensure that the casting liquid can smoothly and evenly fill the mold cavity, thereby producing high-quality castings.
[0037] A filter device 11 is provided between the horizontal runway 9 and the sprue 10. To filter out impurities, the main function of the filter device 11 is to capture and remove impurities in the casting liquid, such as metal oxides, non-metallic inclusions, bubbles, etc. Preventing impurities from entering the mold cavity may cause defects in the casting, such as air holes, slag inclusions, cracks, etc. By filtering out impurities, the filter device 11 can improve the fluidity of the casting liquid, allowing it to fill the mold cavity more smoothly, which helps to reduce casting defects caused by poor flow. The use of the filter device 11 can significantly improve the quality of castings, reduce defects caused by impurities, and improve the mechanical properties and appearance quality of castings. In this embodiment, the filter device 11 includes a filter mesh, and the filter device 11 adopts a filter element of the prior art.
[0038] The angle between the pitch of the blade mold 1 and the horizontal plane is in the range of 15°-35°. When the adjustable propeller is rotated in the original pitch state, the angle between the original pitch of the adjustable propeller and the horizontal plane is in the range of 35-55°. Due to the high inclination, on the one hand, it is not conducive to the installation of the blade mold 1, and the installation and fixation requirements are high. Secondly, the requirements for necking are high, otherwise the process yield will be greatly reduced. Secondly, casting is difficult due to the high inclination. The high inclination may cause eddies or turbulence in the molten metal during the flow, thereby affecting the shrinkage compensation effect and increasing the risk of defects in the casting. Due to the high inclination, the pouring liquid may encounter greater resistance during the flow, resulting in poor flow or splashing. This will not only affect the accuracy and uniformity of the casting, but may also pose a threat to the safety of the operator.
[0039] Adopting the above-mentioned angle range is conducive to the installation and fixation of the blade mold 1. The blade mold 1 can be more easily docked with the production equipment, thereby reducing the necking. At the same time, the fixation is more stable, ensuring that the mold remains stable during the casting process.
[0040] In this embodiment, the leading edge refers to the leading edge of the blade, i.e., the portion of the blade that first contacts the fluid during rotation. The trailing edge refers to the trailing edge of the blade, i.e., the portion where the fluid exits the blade. The leading edge of the blade mold 1 is slightly higher than the trailing edge of the blade mold 1, which improves propulsion performance and casting quality, facilitates subsequent manual removal of the blade mold 1, reduces post-processing steps, lowers labor costs, and significantly improves process yield.
[0041] A feeding channel 12 is provided between the second riser 4 and the third riser 5. This channel connects the riser to the area of the casting requiring feeding, ensuring effective feeding of the casting liquid and preventing shrinkage cavities and porosity. This helps ensure a dense casting structure free of shrinkage cavities and porosity, thereby improving casting quality. In this embodiment, the feeding channel 12 is located above the second riser 4 and at its junction with the third riser 5, near the last hot spot of solidification. This channel utilizes the gravity of the casting liquid for feeding. This ensures both casting quality and effective feeding.
[0042] In this embodiment, due to the adjustment of the pitch angle of the blade mold 1, the shrinkage compensation is eliminated, ensuring that the casting liquid can be effectively compensated during the solidification process, preventing defects such as shrinkage cavities and shrinkage porosity. This achieves effective control of the casting cooling process, eliminating the need for chill iron and chill sand.
[0043] In this embodiment, the casting liquid is molten copper.
[0044] The utility model eliminates the need for necking in conventional casting systems before casting, chilling iron and quenching sand, thereby simplifying the casting process and potentially improving production efficiency and casting quality.
[0045] The utility model simplifies the casting process, reduces tooling cost and labor cost, improves the output rate and quality stability of castings, reduces the scrap rate, and improves production efficiency.
[0046] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation method of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the scope of protection of the present utility model.
Claims
1. An adjustable pitch casting device, characterized in that: The invention comprises a casting device, a blade mold, a casting platform, a riser 1 and a riser 2, wherein the riser 2 is arranged on the casting platform, the riser 2 has a discharge port 1 and a discharge port 2, the riser 1 is arranged above the riser 2 and is in communication with the discharge port 1, the blade mold is arranged on one side of the riser 2 and is in communication with the discharge port 2, the casting platform has a slag collection nest, the slag collection nest is in communication with the riser 2, and the casting device is used to inject the casting liquid into the riser 2 and fill the blade mold.
2. The adjustable pitch casting equipment according to claim 1, characterized in that: The blade mold is provided with a third riser in communication with the interior of the blade mold. The third riser has an exhaust port, and the exhaust port is provided with an exhaust pipe.
3. The adjustable pitch casting equipment according to claim 2, characterized in that: The angle between the pitch of the blade mold and the horizontal plane is in the range of 15°-35°.
4. The adjustable pitch casting equipment according to claim 3, characterized in that: The leading edge of the blade mold is slightly higher than the trailing edge of the blade mold.
5. The adjustable pitch casting equipment according to claim 1, characterized in that: A pouring pipe is provided on the pouring platform, and the pouring device is injected into the second riser through the pouring pipe.
6. The adjustable pitch casting equipment according to claim 5, characterized in that: The pouring pipes are arranged at intervals along the circumference of the riser 2. A pouring ring is arranged in the pouring platform. The pouring ring is provided with multiple pouring pipes. The pouring ring has an inlet, and the inlet is in communication with the pouring device.
7. The adjustable pitch casting equipment according to claim 6, characterized in that: The casting device includes a horizontal runway and a vertical runner. The vertical runner is used to flow the casting liquid into the horizontal runway, and the horizontal runway is in circulation with the casting ring.
8. The adjustable pitch casting equipment according to claim 7, characterized in that: A filtering device is provided between the horizontal runway and the sprue.
9. The adjustable pitch casting equipment according to claim 8, characterized in that: The filtering device is overlapped at the connection between the horizontal runway and the vertical runner.
10. The adjustable pitch casting equipment according to claim 2, characterized in that: A feeding channel is provided between the second riser and the third riser.