Novel pouring cup outer frame for casting

Abstract

The invention discloses a novel pouring cup outer frame for casting, which relates to the technical field of casting processes, and can greatly shorten the turnover period, save the labor time and well reuse, so that the production efficiency is effectively improved, the production cost is reduced, the field operation environment is improved, and the potential safety hazard is effectively reduced. The novel pouring cup outer frame for casting comprises an outer frame body made of a steel plate with the thickness of 40 mm, the outer frame body has pattern draft from top to bottom, and the caliber of the upper end of the outer frame body is smaller than that of the lower end of the outer frame body.

Description

Technical Field

[0001] The invention relates to the technical field of casting technology, in particular to a new pouring cup outer frame for casting. Background Art

[0002] At present, in the casting process, the pouring cup is a key component of the casting pouring system. It is mainly used to receive the molten metal, effectively prevent the molten metal from splashing and overflowing, and at the same time increase the static pressure of the molten metal and skim off slag and impurities.

[0003] For large castings, a pool-shaped pouring cup is a more suitable choice due to its large volume, which can accommodate more molten metal and has better slag retention. Using resin sand to make pouring cups is a common process for large castings; resin sand has good formability, high strength, and high temperature resistance, making it ideal for making large pool-shaped pouring cups.

[0004] The pouring cup frame provides structural support for the pouring cup, ensuring that the pouring cup will not deform or be damaged under the impact of high temperature and molten metal. However, the inventors of this application discovered that in the prior art, after the pouring cup is poured, the resin sand pouring cup cannot be completely collapsed and must be opened and vibrated to ensure that the pouring cup frame can continue to be used. However, the vibrating process causes the pouring cup frame to deform, which increases its turnover cycle. In order to meet production needs, a large number of pouring cup frames have to be prepared, which not only causes a messy placement on site, but also poses certain safety hazards.

[0005] Therefore, how to provide a new casting cup outer frame that can effectively avoid the sand vibration operation so that the box can be quickly dragged after the pouring is completed has become a technical problem that technical personnel in this field urgently need to solve. Summary of the Invention

[0006] The purpose of the present invention is to provide a new pouring cup frame for casting, which can greatly shorten the turnover cycle, save labor time, and be well reused, thereby effectively improving production efficiency and reducing production costs, while improving the on-site working environment and effectively reducing safety hazards.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions: A new casting cup outer frame comprises: an outer frame body made of a 40 mm thick steel plate, the outer frame body having a draft angle from top to bottom, and the diameter of the upper end of the outer frame body being smaller than the diameter of the lower end of the outer frame body; a side wall of the outer frame body having a plurality of through holes, the plurality of through holes being distributed along the circumference of the outer frame body; M22 nuts welded to the outer side walls of the through holes of the outer frame body, and the nuts being assembled with M22*100 bolts; When using, during the pouring cup shaping stage, place the pouring cup with the large opening facing upwards; use a bolt with a specification of M22*100 and screw it steadily along the nut cap welded on the outer frame until the bolt is completely screwed to the bottom; After the pouring cup is shaped, it enters the use preparation stage of the pouring cup; the completed pouring cup is turned over as a whole, with the large mouth facing downwards, and the mold is prepared for pouring; After pouring is completed and the molten metal has cooled and formed, demoulding is carried out; the bolts around the outer frame are slowly unscrewed; the unscrewing length is controlled within the range of 50-60mm, and it is ensured that the bolt heads are completely unscrewed from the inner wall of the outer frame so that the sand mold can fall off smoothly, but at the same time, be careful not to completely unscrew the bolts; use the crane's hook to hook the preset lifting point of the pouring cup outer frame and slowly lift the outer frame; as the outer frame rises, the sand mold falls off naturally, and the pouring cup outer frame completes a use process. After simple maintenance operations such as cleaning and inspection, it can be put into the next round of use to achieve efficient recycling.

[0008] In actual application, the outer frame body is an octagonal structure without sharp edges.

[0009] Wherein, the draft angle is 7°.

[0010] Specifically, the through hole has a diameter of φ30.

[0011] Compared with the prior art, the new casting cup outer frame of the present invention has the following advantages: In the new casting cup outer frame provided by the present invention, since the outer frame body is made of a steel plate with a thickness of 40 mm, it can effectively cope with high temperature and metal liquid impact while ensuring structural strength, thereby effectively preventing the outer frame from deformation or damage; since the outer frame body has a draft angle from top to bottom, and the upper end diameter of the outer frame body is smaller than the lower end diameter of the outer frame body, it can well ensure that the resin sand is smoothly demolded, thereby effectively avoiding low production efficiency caused by demolding difficulties and damage to the outer frame. In other words, the new casting cup outer frame provided by the present invention is welded with 40mm thick steel plates (using 40mm thick high-quality steel plates can ensure high strength and effectively resist the impact of molten metal while reducing deformation; it can withstand high temperatures to avoid performance degradation caused by thermal fatigue after long-term use, is suitable for high-intensity continuous casting production, and improves durability. At the same time, it reduces the problem of sand mold rejection caused by deformation to effectively reduce the maintenance rate), and is provided with a draft angle, so that the resin sand is easy to demold and the sand vibration step is avoided. After the pouring is completed, the box can be quickly dragged, which greatly shortens the turnover cycle, saves labor time, and can be reused, effectively improves production efficiency, reduces production costs, and improves the on-site working environment and reduces safety hazards. At the same time, the bolt connection method facilitates the assembly and replacement of the outer frame and can achieve quick disassembly and assembly; the nut cap welding ensures the connection strength, can effectively prevent loosening, and achieves stable fixation; and it can adapt to the requirements of pouring cups or molds of different sizes and has strong compatibility; in addition, it can be combined with automated production line applications to realize automatic disassembly and assembly of the outer frame by a robotic arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic structural diagram of a new casting cup outer frame provided by an embodiment of the present invention; Figure 2 This is a schematic diagram of the top view of the outer frame of a new pouring cup for casting provided in an embodiment of the present invention.

[0013] Reference numerals: 1-outer frame body; 11-through hole; 2-hanging handle. DETAILED DESCRIPTION

[0014] For ease of understanding, the novel casting cup outer frame provided by an embodiment of the present invention is described in detail below in conjunction with the accompanying drawings.

[0015] The embodiment of the present invention provides a new casting cup outer frame, such as Figure 1 and Figure 2As shown, it includes: an outer frame body 1 made of a steel plate with a thickness of 40 mm, the outer frame body 1 having a draft angle from top to bottom, and the upper end diameter of the outer frame body 1 is smaller than the lower end diameter of the outer frame body 1; the side wall of the outer frame body 1 can have a plurality of through holes 11, and the plurality of through holes 11 can be distributed along the circumferential direction (all four directions) of the outer frame body 1, thereby effectively preventing the sand mold from falling off; an M22 nut cap (not shown in the figure) can be welded to the outer side wall of the through hole 11 of the outer frame body 1, thereby effectively ensuring that the nut cap is tightly connected to the side wall of the outer frame body 1, while at the same time ensuring that the inner wall of the outer frame is smooth; and the nut cap can be assembled with an M22*100 bolt (not shown in the figure) to facilitate demoulding; When using, during the pouring cup shaping stage, place the pouring cup with the large opening facing upwards; use a bolt with a specification of M22*100 and screw it steadily along the nut cap welded on the outer frame until the bolt is completely screwed to the bottom; After the pouring cup is shaped, it enters the use preparation stage of the pouring cup; the completed pouring cup is turned over as a whole, with the large mouth facing downwards, and the mold is prepared for pouring; After pouring is completed and the molten metal has cooled and formed, demoulding is carried out; the bolts around the outer frame are slowly unscrewed; the unscrewing length is controlled within the range of 50-60mm, and it is ensured that the bolt heads are completely unscrewed from the inner wall of the outer frame so that the sand mold can fall off smoothly, but at the same time, be careful not to completely unscrew the bolts; use the crane's hook to hook the preset lifting point of the pouring cup outer frame and slowly lift the outer frame; as the outer frame rises, the sand mold falls off naturally, and the pouring cup outer frame completes a use process. After simple maintenance operations such as cleaning and inspection, it can be put into the next round of use to achieve efficient recycling.

[0016] Compared with the prior art, the new casting cup outer frame according to the embodiment of the present invention has the following advantages: In the new casting cup outer frame provided by an embodiment of the present invention, since the outer frame main body 1 is made of a steel plate with a thickness of 40 mm, it can effectively cope with high temperature and molten metal impact while ensuring structural strength, thereby effectively preventing the outer frame from deformation or damage; since the outer frame main body 1 has a draft angle from top to bottom, and the upper end diameter of the outer frame main body 1 is smaller than the lower end diameter of the outer frame main body 1, it can well ensure that the resin sand is smoothly demolded, thereby effectively avoiding low production efficiency caused by demolding difficulties and damage to the outer frame. In other words, the new casting cup outer frame provided by the embodiment of the present invention is welded from 40mm thick steel plates (using 40mm thick high-quality steel plates can ensure high strength, effectively resist the impact of molten metal, and reduce deformation; it can withstand high temperatures to avoid performance degradation caused by thermal fatigue after long-term use, is suitable for high-intensity continuous casting production, and improves durability. At the same time, it reduces the problem of sand mold rejection caused by deformation, effectively reducing the maintenance rate). It is also provided with a draft angle, which makes it easy to demold the resin sand and avoids the sand vibration step. After the pouring is completed, the box can be quickly dragged, greatly shortening the turnover cycle, saving labor time and allowing for reuse, effectively improving production efficiency and reducing production costs. It also improves the on-site working environment and reduces safety hazards. At the same time, the bolt connection method facilitates the assembly and replacement of the outer frame and enables quick disassembly and assembly. The nut cap welding ensures connection strength, effectively prevents loosening, and achieves stable fixation. In addition, it can adapt to the requirements of pouring cups or molds of different sizes and has strong compatibility. In addition, it can be used in conjunction with automated production lines to realize automatic disassembly and assembly of the outer frame by a robotic arm.

[0017] In actual application, such as Figure 1 and Figure 2 As shown, the outer frame body 1 can be in an octagonal structure without sharp edges, and the inner side is designed with a slope, so that the new pouring cup can be demoulded by itself after pouring and can be directly lifted away for continued use; and, considering the safety of the operation process, after the pouring cup is sanded, the slope designed on the inner side is prevented, which may cause the sand mold of the pouring cup to fall off during the lifting process and cause safety hazards. A through hole is designed on the side wall, and a screw is inserted before the pouring cup is sanded. After the pouring cup is poured with molten iron, the screw is pulled out, which is convenient and effectively protects safety. (The traditional pouring cup frame is a rectangular structure, with steel structures welded at four corners. During use, the rectangular structure has right-angled corners when hoisting, which can easily cause injuries or hit other products. In addition, after use, the traditional pouring cup cannot be automatically demolded because the four corners and inner sides of the rectangle are straight. After use, it must be hoisted to the unpacking and sand vibrating before use. The vibration process will cause the pouring cup to deform, and then the welds at the four corners will open. It either needs to be re-welded or scrapped and cannot be used anymore. The entire process wastes a lot of labor and material costs.) Among them, such as Figure 1 and Figure 2As shown, the above-mentioned draft angle can be preferably 7°, which can not only ensure the close fit of the resin sand during the molding process, but also enable easy demoulding after molding, thereby significantly improving production efficiency; that is, setting a 7° draft angle on the inner wall of the outer frame can enable the resin sand to slide off naturally after solidification without the need for additional vibration or external force assistance, thereby effectively improving demoulding efficiency, reducing demoulding time, and shortening the production cycle; at the same time, it can avoid deformation or cracking caused by vibration impact, thereby effectively extending the life of the outer frame and reducing maintenance costs.

[0018] Specifically, if Figure 1 and Figure 2 As shown, the diameter of the through hole 11 may preferably be φ30.

[0019] Furthermore, if Figure 1 and Figure 2 As shown, a pair of opposite outer side walls of the outer frame body 1 can be welded with hangers 2.

[0020] The following describes in detail the use of the new casting cup outer frame provided by the embodiment of the present invention with the help of the accompanying drawings: (1) During the pouring cup shaping stage, place the outer frame of the pouring cup with the large opening facing upwards; select a bolt with a specification of M22*100 and screw it steadily along the nut cap welded on the outer frame until the bolt is completely screwed to the bottom; (2) After the pouring cup is shaped, it enters the use preparation stage of the pouring cup; the completed pouring cup is turned over as a whole, with the large mouth facing downward, and the mold is prepared for pouring; (3) After pouring is completed and the molten metal is cooled and formed, demoulding is performed; the bolts around the outer frame are slowly unscrewed; the unscrewing length needs to be controlled within the range of 50-60mm to ensure that the bolt heads are completely unscrewed from the inner wall of the outer frame so that the sand mold can fall off smoothly, but at the same time, be careful not to completely unscrew the bolts; use the crane hook to hook the preset lifting point of the pouring cup outer frame and slowly lift the outer frame; as the outer frame rises, the sand mold falls off naturally, and the pouring cup outer frame completes a use process. After simple maintenance operations such as cleaning and inspection, it can be put into the next round of use to achieve efficient recycling.

[0021] In summary, the novel casting cup outer frame provided by the embodiment of the present invention has the following advantages: 1. The outer frame is specially designed with a draft angle. This ingenious structure allows the resin sand to be easily demolded, avoiding the tedious steps of vibrating sand in traditional processes, effectively reducing the impact and damage to the outer frame, reducing the risk of outer frame deformation, extending the service life of the outer frame, and reducing equipment replacement costs; Second, after pouring is completed, the box can be quickly dragged, which greatly shortens the turnover cycle. That is, compared with traditional processes, more pouring operations can be completed in a unit of time, which significantly improves production efficiency and meets the needs of large-scale production; 3. No need to carry out manpower-consuming and time-consuming operations such as transporting, unpacking and lifting vibration sand, thus saving a lot of labor costs; Fourth, it can be reused, which effectively improves production efficiency and reduces production costs. At the same time, it also improves the on-site working environment and reduces safety hazards.

[0022] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A new type of casting cup frame, characterized in that: include: The outer frame body is made of 40mm thick steel plate, has a draft angle from top to bottom, and the diameter of the upper end of the outer frame body is smaller than the diameter of the lower end of the outer frame body; the side wall of the outer frame body has multiple through holes, and the multiple through holes are distributed along the circumference of the outer frame body; M22 nuts are welded to the outer side walls of the through holes of the outer frame body, and the nuts are assembled with M22*100 bolts; When using, during the pouring cup shaping stage, place the pouring cup with the large opening facing upwards; use a bolt with a specification of M22*100 and screw it steadily along the nut cap welded on the outer frame until the bolt is completely screwed to the bottom; After the pouring cup is shaped, it enters the use preparation stage of the pouring cup; the completed pouring cup is turned over as a whole, with the large mouth facing downwards, and the mold is prepared for pouring; After pouring is completed and the molten metal has cooled and formed, demoulding is carried out; the bolts around the outer frame are slowly unscrewed; the unscrewing length is controlled within the range of 50-60mm, and it is ensured that the bolt heads are completely unscrewed from the inner wall of the outer frame so that the sand mold can fall off smoothly, but at the same time, be careful not to completely unscrew the bolts; use the crane's hook to hook the preset lifting point of the pouring cup outer frame and slowly lift the outer frame; as the outer frame rises, the sand mold falls off naturally, and the pouring cup outer frame completes a use process. After simple maintenance operations such as cleaning and inspection, it can be put into the next round of use to achieve efficient recycling.

2. The new casting cup outer frame according to claim 1, characterized in that: The outer frame body is in an octagonal structure without sharp edges.

3. The new casting cup outer frame according to claim 2, characterized in that: The draft angle is 7°.

4. The new casting cup outer frame according to any one of claims 1 to 3, characterized in that: The through hole has a diameter of φ30.

Images