A magnesium chip melting and recasting device
By introducing a motor-driven rotating shaft into the magnesium casting mold, the lower and upper molds rotate synchronously, solving the problem of suspended matter sedimentation during magnesium casting, achieving uniform dispersion of the casting liquid, and improving the quality of the castings.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUAFU PRECISION TECHNOLOGY (MAANSHAN) CO LTD AUTO PARTS R&D BRANCH
- Filing Date
- 2025-08-13
- Publication Date
- 2026-07-14
AI Technical Summary
During magnesium casting, suspended matter in the casting liquid tends to concentrate downwards due to gravity, resulting in poor dispersion and affecting casting quality.
A magnesium shavings melting and recasting device was designed. By setting a motor-driven rotating shaft in the casting mold, the lower mold and the upper mold rotate synchronously, ensuring that the suspended matter in the casting liquid can be evenly dispersed during the solidification process and avoiding sedimentation.
This method achieves uniform dispersion of suspended matter in the casting liquid, improves casting quality, prevents suspended matter from settling to one side, and ensures the uniformity and quality of the castings.
Smart Images

Figure CN224487650U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of casting, specifically to a magnesium scrap melting and recasting device. Background Technology
[0002] Magnesium shavings melting is the process of melting magnesium shavings (shavings, powder, and scraps) generated during the processing of automotive, 3C, and aerospace parts on-site and directly casting them into ingots or castings, thus achieving closed-loop regeneration of magnesium alloys.
[0003] A casting mold is required in the melting and casting process. Of course, other materials need to be added to the casting liquid for mixing during the magnesium casting process.
[0004] Patent CN207606270U discloses a vacuum casting chamber structure for magnesium alloy casting, including an upper fixed mold, an upper mold groove, and a forming mold body; the bottom end of the structure body is set as a lower fixed mold; an electric suction pump is fixedly installed at the bottom end of one side wall of the lower fixed mold; a mold body fixing seat is set at the middle position of the inner side of the lower fixed mold; a lower mold groove is opened on the mold body fixing seat; an air suction hole is opened at the bottom inner side of the lower mold groove; the air suction hole is connected to the electric suction pump; a sealing groove is opened on the adjacent outer side of the mold body fixing seat; a heat insulation sand layer is set on the adjacent outer side of the sealing groove; and a lower forming mold body is embedded and adsorbed on the inner side of the lower mold groove.
[0005] When the vacuum casting chamber structure of this magnesium alloy is being cast, because the mold is always kept in a fixed state, some other substances in the casting liquid will concentrate downwards due to their own gravity, resulting in a very poor dispersion effect. Utility Model Content
[0006] The purpose of this invention is to provide a magnesium shavings melting and recasting device, which is used to recast molten magnesium shavings. During the solidification and molding process, by rotating the casting mold, the suspended substances added in the casting liquid can be better dispersed, avoiding sedimentation to one side.
[0007] To achieve the above objectives, this utility model provides a magnesium scrap melting and recasting device, including a base plate, with a first vertical plate and a second vertical plate fixedly connected to both ends of the base plate, a motor mounted on the first vertical plate, and a rotating shaft coaxial with the motor mounted on the second vertical plate; it also includes a lower mold and an upper mold, which are detachably connected, with a connecting shaft coaxial with the rotating shaft fixedly connected to both ends of the lower mold, the connecting shaft being connected to the motor shaft via a first flange and to the rotating shaft via a second flange.
[0008] Preferably, a first support plate is provided on the inner side of the first vertical plate, a first bearing is provided between the first support plate and the shaft of the motor, and a second bearing is provided between the shaft and the first vertical plate.
[0009] Preferably, a second support plate is provided on the inner side of the second vertical plate, a first bearing is provided between the second support plate and the rotating shaft, and a second bearing is provided between the rotating shaft and the second vertical plate.
[0010] Preferably, the lower mold and the upper mold are provided with connecting ear plates on both sides; the connecting ear plates on the upper and lower sides are connected by bolts; the connecting shaft protrudes at least partially from the upper surface of the lower mold, and the bottom of the upper mold is provided with a groove corresponding to and engaging with the connecting shaft.
[0011] Preferably, the base plate is provided with an arc support portion, the bottom of the lower mold is provided with a lower semi-arc plate, the top of the upper mold is provided with an upper semi-arc plate, and the lower semi-arc plate and the upper semi-arc plate form an arc structure that is coaxial with and in contact with the arc support portion after the mold is closed.
[0012] Preferably, the lower semicircular arc plate is connected to the lower mold, and the upper semicircular arc plate is connected to the upper mold through multiple connecting blocks.
[0013] Preferably, the arc support includes two symmetrically arranged arc frames; a plurality of support rollers that contact the arc structure are arranged between the two arc frames.
[0014] According to the above technical solution, this utility model provides a magnesium scrap melting and recasting device, including a base plate, with a first vertical plate and a second vertical plate fixedly connected to both ends of the base plate respectively. A motor is installed on the first vertical plate, and a rotating shaft coaxial with the motor is installed on the second vertical plate. It also includes a lower mold and an upper mold, which are detachably connected. A connecting shaft coaxial with the rotating shaft is fixedly connected to both ends of the lower mold. The connecting shaft is connected to the shaft of the motor through a first flange and to the rotating shaft through a second flange.
[0015] The usage and beneficial effects of this magnesium scrap melting and recasting device are as follows: Before use, the upper and lower molds are closed with the upper mold facing upwards. Molten magnesium scrap and other mixtures are filled into the casting port on the upper mold. The casting port is then sealed with a plug. While waiting for the casting liquid to cool, the motor is turned on, driving the lower and upper molds to rotate synchronously until the casting liquid cools and solidifies. After this, the motor is turned off, the mold is opened, and the solidified casting is removed. During motor rotation, the rotating shaft and the second vertical plate provide driven rotation, supporting the upper and lower molds. This magnesium scrap melting and recasting device is used to recast molten magnesium scrap. During the solidification process, rotating the casting mold allows suspended substances added to the casting liquid to be better dispersed, preventing them from settling to one side.
[0016] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description
[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0018] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of a magnesium scrap melting and recasting device;
[0019] Figure 2 This is a side view of a preferred embodiment of the magnesium scrap melting and recasting apparatus.
[0020] Figure 3 yes Figure 2 A schematic diagram of the AA cross-sectional structure.
[0021] Explanation of reference numerals in the attached figures
[0022] 1-Base plate; 2-First vertical plate; 3-Second vertical plate; 4-Second support plate; 5-Lower mold; 6-Upper mold; 7-Lower semi-circular arc plate; 8-Upper semi-circular arc plate; 9-Connecting block; 10-Circular arc frame; 11-Support roller shaft; 12-Second bearing; 13-First bearing; 14-Connecting ear plate; 15-Bolt; 16-Motor; 17-Shaft body; 18-First support plate; 19-First flange; 20-Connecting shaft; 21-Second flange; 22-Rotating shaft. Detailed Implementation
[0023] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.
[0024] In this utility model, unless otherwise stated, directional terms such as "up, down, left, right, front, back, inside, outside" in the terminology only represent the orientation of the term in its conventional use or are common terms understood by those skilled in the art, and should not be regarded as a limitation on the term.
[0025] See Figure 1-3 The magnesium scrap melting and recasting apparatus shown includes a base plate 1, with a first vertical plate 2 and a second vertical plate 3 fixedly connected to both ends of the base plate 1. A motor 16 is mounted on the first vertical plate 2, and a rotating shaft 22 coaxial with the motor 16 is mounted on the second vertical plate 3. The apparatus also includes a lower mold 5 and an upper mold 6, which are detachably connected. A connecting shaft 20 coaxial with the rotating shaft 22 is fixedly connected to both ends of the lower mold 5. The connecting shaft 20 is connected to the shaft body 17 of the motor 16 via a first flange 19 and to the rotating shaft 22 via a second flange 21.
[0026] By implementing the above technical solution, before use, the upper mold 6 and lower mold 5 are closed with the upper mold 6 facing upwards. Molten magnesium filings and other mixtures are filled into the casting port on the upper mold 6. The casting port is then sealed with a plug. While waiting for the casting liquid to cool, the motor 16 is turned on, driving the lower mold 5 and upper mold 6 to rotate synchronously until the casting liquid cools and solidifies. Afterwards, the motor 16 is turned off, the mold is opened, and the solidified casting is removed. During the rotation of the motor 16, the rotating shaft 22 provides driven rotation through the rotational connection with the second vertical plate 3, supporting the upper mold 6 and lower mold 5. This magnesium filings melting and recasting device is used to recast molten magnesium filings. During the solidification process, rotating the casting mold allows suspended substances added to the casting liquid to be better dispersed, preventing sedimentation to one side. The motor 16 uses a speed-controlled geared motor.
[0027] In this embodiment, a first support plate 18 is provided on the inner side of the first vertical plate 2, a first bearing 13 is provided between the first support plate 18 and the shaft 17 of the motor 16, and a second bearing 12 is provided between the shaft 17 and the first vertical plate 2. This arrangement provides dual-axis support for the shaft 17 of the motor 16, improving support stability.
[0028] In this embodiment, a second support plate 4 is provided on the inner side of the second vertical plate 3, a first bearing 13 is provided between the second support plate 4 and the rotating shaft 22, and a second bearing 12 is provided between the rotating shaft 22 and the second vertical plate 3. This arrangement provides dual-axis support for the rotating shaft 22, improving support stability.
[0029] In this embodiment, connecting lugs 14 are provided on both sides of the lower mold 5 and the upper mold 6; the corresponding connecting lugs 14 on the upper and lower sides are connected by bolts 15; the connecting shaft 20 at least partially protrudes from the upper surface of the lower mold 5, and the bottom of the upper mold 6 is provided with a groove corresponding to and engaging with the connecting shaft 20. This arrangement ensures that the connecting shaft 20 is positioned at or near the center of the upper mold 6 and lower mold 5 after they are closed, making the rotation of the lower mold 5 and upper mold 6 more stable.
[0030] In this embodiment, the base plate 1 is provided with an arc-shaped support portion, and the bottom of the lower mold 5 is provided with a lower semi-arc plate 7; the top of the upper mold 6 is provided with an upper semi-arc plate 8. After the lower semi-arc plate 7 and the upper semi-arc plate 8 are closed, they form an arc structure that is coaxial with and in contact with the arc-shaped support portion. With this arrangement, during the rotation of the upper mold 6 and the lower mold 5, the upper semi-arc plate 8 or the lower semi-arc plate 7 is supported on the arc-shaped support portion, avoiding the problem of downward collapse at the position of the upper mold 6 and the lower mold 5.
[0031] In this embodiment, the lower semicircular plate 7 and the lower mold 5, as well as the upper semicircular plate 8 and the upper mold 6, are each connected by multiple connecting blocks 9. For example, a connecting block 9 is provided at each end and the middle position of the lower semicircular plate 7 and the upper semicircular plate 8.
[0032] In this embodiment, the arc support includes two symmetrically arranged arc frames 10; a plurality of support rollers 11 that contact the arc structure are arranged between the two arc frames 10. This arrangement improves the support effect and reduces friction. The connection between the support rollers 11 and the arc frames 10 can also be a bearing connection.
[0033] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.
[0034] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.
[0035] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.
Claims
1. A magnesium scrap melting and recasting apparatus, characterized in that, The magnesium scrap melting and recasting device includes a base plate (1), with a first vertical plate (2) and a second vertical plate (3) fixedly connected to both ends of the base plate (1). A motor (16) is installed on the first vertical plate (2), and a rotating shaft (22) coaxial with the motor (16) is installed on the second vertical plate (3). It also includes a lower mold (5) and an upper mold (6), which are detachably connected. Both ends of the lower mold (5) are fixed with a connecting shaft (20) coaxial with the rotating shaft (22). The connecting shaft (20) is connected to the shaft (17) of the motor (16) through a first flange (19) and to the rotating shaft (22) through a second flange (21).
2. The magnesium scrap melting and recasting apparatus according to claim 1, characterized in that, A first support plate (18) is provided on the inner side of the first vertical plate (2), a first bearing (13) is provided between the first support plate (18) and the shaft (17) of the motor (16), and a second bearing (12) is provided between the shaft (17) and the first vertical plate (2).
3. The magnesium scrap melting and recasting apparatus according to claim 2, characterized in that, A second support plate (4) is provided on the inner side of the second vertical plate (3), a first bearing (13) is provided between the second support plate (4) and the rotating shaft (22), and a second bearing (12) is provided between the rotating shaft (22) and the second vertical plate (3).
4. The magnesium scrap melting and recasting apparatus according to claim 1, characterized in that, Connecting ear plates (14) are provided on both sides of the lower mold (5) and the upper mold (6); The upper and lower corresponding connecting ear plates (14) are connected by bolts (15); The connecting shaft (20) protrudes at least partially from the upper surface of the lower mold (5), and the bottom of the upper mold (6) is provided with a groove corresponding to and engaging with the connecting shaft (20).
5. The magnesium scrap melting and recasting apparatus according to claim 1, characterized in that, The base plate (1) is provided with an arc support part, and the bottom of the lower mold (5) is provided with a lower semi-circular arc plate (7); The upper mold (6) is provided with an upper semi-circular arc plate (8) at the top. After the lower semi-circular arc plate (7) and the upper semi-circular arc plate (8) are closed, they form a circular arc structure that is coaxial with and in contact with the circular arc support.
6. The magnesium scrap melting and recasting apparatus according to claim 5, characterized in that, The lower semicircular arc plate (7) and the lower mold (5), as well as the upper semicircular arc plate (8) and the upper mold (6), are each connected by a plurality of connecting blocks (9).
7. The magnesium scrap melting and recasting apparatus according to claim 5, characterized in that, The arc support includes two symmetrically arranged arc frames (10), and a plurality of support rollers (11) that contact the arc structure are arranged between the two arc frames (10).