Casting device for secondary aluminum

Abstract

The utility model discloses a secondary aluminum casting device, relates to the field of secondary aluminum processing, and aims to solve the problems that oxide is easily formed on the surface of molten aluminum due to the fact that the molten aluminum is easily oxidized due to the characteristics of the molten aluminum, oxide layering exists in a cast finished product or impurities exist in the cast finished product, and oxide adhesion exists in a casting box body when the existing casting device is used for casting. And high-efficiency recycling of aluminum is not facilitated. A sliding limiting ring is slidably connected to the lower end of the exterior of the molten aluminum box body, supporting legs are fixed to the two sides of the sliding limiting ring and are each of an L-shaped structure, a driving hydraulic cylinder is installed in the middle of the lower end of the horizontal portion of each supporting leg, and upper fixing blocks are fixed to the two sides of the upper end of the exterior of the molten aluminum box body. And the output rod end of the driving hydraulic cylinder is connected with the upper fixing block, a molten aluminum containing inner cavity is formed in the molten aluminum box body, a first connecting pipe body is arranged at the lower end of the molten aluminum box body, and a filtering assembly is arranged at the lower end of the first connecting pipe body.

Description

Technical Field

[0001] The utility model relates to the field of recycled aluminum processing, in particular to a casting device for recycled aluminum. Background Art

[0002] The recycled metal industry is an important part of the metal industry. Compared with the production of the same amount of primary metal, the use of recycled metal can significantly save energy and water, and reduce the emission of solid waste and sulfur dioxide. With the current two-way pressure on resources and the environment, the rational use of recycled metal has a significant role in promoting resource conservation, environmental protection, energy conservation and emission reduction in the metal industry.

[0003] Aluminum recycling accounts for a large proportion of the recycled metal industry; waste aluminum products and waste aluminum alloys are recycled and processed through the recycled aluminum alloy casting process to be remade into new aluminum alloy products. When carrying out the recycled aluminum alloy casting process, the waste aluminum needs to be recycled and classified first, and the waste aluminum alloy is smelted to obtain recycled aluminum alloy liquid metal; then, according to the needs, the recycled aluminum alloy liquid metal is cast into shape, and the required aluminum alloy products are obtained through the casting process. Then the aluminum alloy products are heat treated to improve their mechanical properties and corrosion resistance, and finally surface treated to improve the surface quality and appearance of the aluminum alloy products.

[0004] The casting of recycled aluminum needs to be carried out using a casting device. At present, when the casting device is casting, the aluminum liquid is easily oxidized due to its own characteristics, so that oxides are easily present on the surface of the aluminum liquid. The cast product will have oxide stratification or impurities inside, and oxides will adhere to the casting box, which is not conducive to the efficient recycling of aluminum. Utility Model Content

[0005] The purpose of the utility model is to provide a casting device for recycled aluminum, so as to solve the problem raised in the above-mentioned background technology that when the current casting device is casting, the aluminum liquid is easily oxidized due to its own characteristics, so that oxides are easily present on the surface of the aluminum liquid, the cast product will have oxide stratification or impurities inside, and oxides will adhere to the casting box, which is not conducive to the efficient recycling of aluminum.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a casting device for recycled aluminum, comprising an aluminum liquid box, a sliding limit ring is slidably connected to the outer lower end of the aluminum liquid box, support legs are fixed on both sides of the sliding limit ring, the support legs are L-shaped structures, a driving hydraulic cylinder is installed in the middle of the lower end of the horizontal part of the support leg, upper fixed blocks are fixed on both sides of the outer upper end of the aluminum liquid box, the output rod end of the driving hydraulic cylinder is connected to the upper fixed block, the interior of the aluminum liquid box is arranged as an aluminum liquid placement cavity, a first connecting pipe body is arranged at the lower end of the aluminum liquid box, a filter assembly is arranged at the lower end of the first connecting pipe body, the filter assembly comprises an outer feed pipe body, a second connecting pipe body is arranged at the lower end of the outer feed pipe body, a conical feed pipe is integrally connected to the lower end of the second connecting pipe body, and an extended feed pipe is integrally connected to the lower end of the conical feed pipe.

[0007] Preferably, a stepped inner edge is formed at the lower end of the inner surface of the outer material passing tube body, and a ceramic filter screen is clamped at the upper end of the stepped inner edge inside the outer material passing tube body, and a plurality of filter holes are formed on the ceramic filter screen.

[0008] Preferably, a fixed vertical rod is fixed in a cross direction on the upper end of the ceramic filter screen plate, and the upper end surface of the fixed vertical rod is located at the lower end of the upper end surface of the outer material passing pipe body.

[0009] Preferably, a first fixing page is fixed on both sides of the lower end of the first connecting tube body, a second fixing page is fixed on both sides of the upper end of the second connecting tube body, and a third fixing page is fixed on one side of the upper and lower ends of the outer material passing tube body, and the two third fixing pages are respectively fitted with the first fixing page on one side and the second fixing page on one side, and the two third fixing pages are respectively connected to the first fixing page on one side and the second fixing page on one side through an axis.

[0010] Preferably, a fourth fixing page is fixed to the other side of the upper and lower ends of the outer surface of the outer material passing pipe body, and the two fourth fixing pages are respectively fitted with the first fixing page on the other side and the second fixing page on the other side, and the two fourth fixing pages are respectively fixed to the first fixing page on the other side and the second fixing page on the other side by bolts.

[0011] Preferably, a lower limit semi-ring is fixed to the rear ends of the first connecting tube body and the second connecting tube body, and the inner surface of the lower limit semi-ring is in contact with the outer surface of the outer material passing tube body of the filter assembly. The upper and lower ends of one side of the outer side of the lower limit semi-ring are fixed with fixed enclosures along the inner ends of the first fixed page on the other side and the second fixed page on the other side. A limit fixing groove is formed between the fixed enclosure and the lower limit semi-ring, the first fixed page on the other side and the second fixed page on the other side, and the fourth fixed page is located in the limit fixing groove.

[0012] Preferably, a liquid passage pipe is installed at the upper end of the aluminum liquid box, and the lower end of the liquid passage pipe extends to the lower end of the inner cavity where the aluminum liquid is placed.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, before casting, the mold is placed at the lower end of the aluminum liquid box, and the output rod end of the driving hydraulic cylinder is contracted to make the aluminum liquid box move downward along the sliding limit ring until the outer feeding pipe enters the lower end position inside the mold; during casting, the output rod end of the driving hydraulic cylinder is extended to push the aluminum liquid box to slowly move upward along the sliding limit ring, so that the discharge position of the lower end of the extended discharge pipe is always located in the liquid aluminum, reducing the contact between the aluminum liquid and the air in the mold during discharge, thereby reducing the generation of oxides, and solving the problem that when the current casting device is casting, the aluminum liquid is easily oxidized due to its own characteristics, so that the aluminum liquid surface is prone to oxides, the cast product will have oxide stratification or impurities inside, and oxides will adhere to the casting box, which is not conducive to the efficient recycling of aluminum.

[0015] 2. In the utility model, the aluminum liquid reaches the outer material pipe body of the filter assembly through the first connecting pipe body, and is filtered through the ceramic filter screen. After long-term use, the bolted fixed connection relationship between the first fixed page, the second fixed page and the fourth fixed page is released, and the filter assembly is driven to rotate through the axial connection rotation relationship between the first fixed page, the second fixed page and the third fixed page, and the fixed vertical rod is pulled to make the ceramic filter screen detach from the inside of the filter assembly for cleaning; after cleaning, it is reversed, and the fourth fixed page is stuck in the limit fixing groove formed by the first fixed page and the fixed enclosure and the second fixed page and the fixed enclosure, and is fixed again with bolts. The aluminum liquid oxide entering the mold is filtered out through the filtering structure, and the lifting scheme of the aluminum liquid box is combined to further improve the product quality, and the intermediate operation is simple, the operation time is short, and the processing efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of a casting device of recycled aluminum from one viewing angle of the utility model;

[0017] Figure 2 It is a schematic diagram of the overall structure of a casting device of recycled aluminum of the utility model from another perspective;

[0018] Figure 3 This is a front view of a casting device for recycled aluminum according to the utility model;

[0019] Figure 4 This is a sectional view of the overall structure of a casting device for recycled aluminum according to the utility model;

[0020] Figure 5 It is a reverse structural cross-sectional view of a filter assembly of a casting device for recycled aluminum according to the utility model.

[0021] In the figure: 1. Aluminum liquid box; 2. Sliding limit ring; 3. Support leg; 4. Driving hydraulic cylinder; 5. Upper fixed block; 6. Aluminum liquid placement cavity; 7. Liquid pipe; 8. First connecting pipe body; 9. First fixed page; 10. Lower limit semi-ring; 11. Second connecting pipe body; 12. Second fixed page; 13. Fixed enclosure; 14. Limit fixing groove; 15. Conical feed pipe; 16. Extended feed pipe; 17. Filter assembly; 18. External feed pipe body; 19. Step inner edge; 20. Ceramic filter screen; 21. Fixed pole; 22. Third fixed page; 23. Fourth fixed page. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] See also Figure 1-5 The utility model provides an embodiment: a casting device for recycled aluminum, comprising an aluminum liquid box 1, the lower end of the aluminum liquid box 1 is divided into a conical structure, which is convenient for feeding, the interior of the aluminum liquid box 1 is arranged as an aluminum liquid placement cavity 6, the upper end of the aluminum liquid box 1 is provided with a liquid through pipe 7, the lower end of the liquid through pipe 7 extends to the lower end of the aluminum liquid placement cavity 6; the lower end of the outer portion of the aluminum liquid box 1 is slidably connected with a sliding limit ring 2, both sides of the sliding limit ring 2 are fixed with support legs 3, the support legs 3 are L-shaped structures, a driving hydraulic cylinder 4 is installed in the middle of the lower end of the horizontal portion of the support leg 3, upper fixed blocks 5 are fixed on both sides of the outer upper end of the aluminum liquid box 1, and the output rod end of the driving hydraulic cylinder 4 is connected to the upper fixed block 5.

[0024] A first connecting pipe body 8 is provided at the lower end of the aluminum liquid box 1, and a control valve is installed on the first connecting pipe body 8. Since there is no special design for the connection between the control valve and the pipeline and it has no impact on the solution of the present application, it is not specifically introduced in the drawings and documents; a filter assembly 17 is provided at the lower end of the first connecting pipe body 8, and the filter assembly 17 includes an external feed pipe body 18, and a second connecting pipe body 11 is provided at the lower end of the external feed pipe body 18, and a conical feed pipe 15 is integrally connected to the lower end of the second connecting pipe body 11, and an extended feed pipe 16 is integrally connected to the lower end of the conical feed pipe 15. A stepped inner edge 19 is formed at the lower end of the inner surface of the outer material passing tube body 18, and a ceramic filter screen plate 20 is engaged along the upper end of the stepped inner edge 19 inside the outer material passing tube body 18. The ceramic filter screen plate 20 is provided with a plurality of filter holes, and a fixed vertical rod 21 is fixed in the cross direction of the upper end of the ceramic filter screen plate 20. The ceramic filter screen plate 20 can be conveniently taken out for cleaning through the fixed vertical rod 21, and the upper end surface of the fixed vertical rod 21 is located at the lower end of the upper end surface of the outer material passing tube body 18.

[0025] The scrap aluminum is recovered and classified, and the scrap aluminum alloy is smelted to obtain recycled aluminum alloy liquid metal; the liquid aluminum is introduced into the aluminum liquid through the liquid pipe 7 and placed in the inner cavity 6.

[0026] Before casting, the mold is placed at the lower end of the aluminum liquid box 1, and the output rod end of the driving hydraulic cylinder 4 is contracted so that the aluminum liquid box 1 moves downward along the sliding limit ring 2 until the outer feed pipe 18 enters the lower end position inside the mold. During casting, the control valve on the first connecting pipe 8 is opened, and the aluminum liquid passes through the first connecting pipe 8 to reach the outer feed pipe 18 of the filter assembly 17, and is filtered through the ceramic filter plate 20. The liquid aluminum then passes through the second connecting pipe 11, the conical feed pipe 15 and the extended feed pipe 16 to reach the mold; at the same time, the output rod end of the driving hydraulic cylinder 4 is extended to push the aluminum liquid box 1 to move slowly upward along the sliding limit ring 2, so that the discharge position at the lower end of the extended feed pipe 16 is always located in the liquid aluminum until it is evacuated after the casting is completed.

[0027] Furthermore, first fixing pages 9 are fixed to both sides of the outer lower end of the first connecting tube body 8, second fixing pages 12 are fixed to both sides of the outer upper end of the second connecting tube body 11, and third fixing pages 22 are fixed to one side of the outer upper and lower ends of the outer material passing tube body 18. The two third fixing pages 22 are respectively fitted with the first fixing page 9 on one side and the second fixing page 12 on one side, and the two third fixing pages 22 are respectively connected to the first fixing page 9 on one side and the second fixing page 12 on one side through an axis of rotation.

[0028] A fourth fixing page 23 is fixed to the other side of the upper and lower ends of the outer material passing tube body 18, and the two fourth fixing pages 23 are respectively fitted with the first fixing page 9 on the other side and the second fixing page 12 on the other side, and the two fourth fixing pages 23 are respectively fixed to the first fixing page 9 on the other side and the second fixing page 12 on the other side by bolts; a lower limit semi-ring 10 is fixed to the rear ends of the outside of the first connecting tube body 8 and the second connecting tube body 11, and the inner surface of the lower limit semi-ring 10 is fitted with the outer surface of the outer material passing tube body 18 on the filter assembly 17, and the upper and lower ends of one side of the outer side of the lower limit semi-ring 10 are fixed with a fixed enclosure 13 along the inner ends of the first fixing page 9 on the other side and the second fixing page 12 on the other side, and a limit fixing groove 14 is formed between the fixed enclosure 13 and the lower limit semi-ring 10, the first fixing page 9 on the other side and the second fixing page 12 on the other side, and the fourth fixing page 23 is located in the limit fixing groove 14. The inner side surface of the fixed enclosure 13 and the rear end surface of the fourth fixed page 23 can be provided with a magnetic structure, which can be temporarily fixed by magnetic attraction in the limit fixing groove 14. When fixing with bolts, no cooperation operation is required, and the positioning is more accurate.

[0029] After long-term use, the bolted connection relationship between the first fixed page 9, the second fixed page 12 and the fourth fixed page 23 is released, and the filter assembly 17 is driven to rotate through the axial connection rotation relationship between the first fixed page 9, the second fixed page 12 and the third fixed page 22, and the fixed vertical rod 21 is pulled up to make the ceramic filter mesh plate 20 detach from the inside of the filter assembly 17 for cleaning; after cleaning, it is rotated back in the opposite direction, and the fourth fixed page 23 is stuck in the limiting fixing groove 14 formed by the first fixed page 9 and the fixed enclosure 13 and the second fixed page 12 and the fixed enclosure 13, and is fixed again with bolts.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A casting device for recycled aluminum, comprising an aluminum liquid box (1), characterized in that: The lower end of the outer part of the aluminum liquid box (1) is slidably connected to a sliding limit ring (2), and support legs (3) are fixed on both sides of the sliding limit ring (2), and the support legs (3) are of an L-shaped structure. A driving hydraulic cylinder (4) is installed in the middle of the lower end of the horizontal part of the support leg (3), and upper fixing blocks (5) are fixed on both sides of the upper end of the outer part of the aluminum liquid box (1), and the output rod end of the driving hydraulic cylinder (4) is connected to the upper fixing block (5). The interior of the aluminum liquid box (1) is arranged to place the aluminum liquid inside. The aluminum liquid box (1) is provided with a first connecting pipe body (8) at the lower end, and a filter assembly (17) is provided at the lower end of the first connecting pipe body (8). The filter assembly (17) includes an external feed pipe body (18), and a second connecting pipe body (11) is provided at the lower end of the external feed pipe body (18). The lower end of the second connecting pipe body (11) is integrally connected with a conical feed pipe (15), and the lower end of the conical feed pipe (15) is integrally connected with an extended feed pipe (16).

2. A casting device for recycled aluminum according to claim 1, characterized in that: The lower end of the inner surface of the outer material passing pipe body (18) forms a stepped inner edge (19), and a ceramic filter screen plate (20) is clamped along the upper end of the stepped inner edge (19) inside the outer material passing pipe body (18), and a plurality of filter holes are formed on the ceramic filter screen plate (20).

3. A casting device for recycled aluminum according to claim 2, characterized in that: A fixed vertical rod (21) is fixed in a cross direction on the upper end of the ceramic filter screen plate (20), and the upper end surface of the fixed vertical rod (21) is located at the lower end of the upper end surface of the external material passing pipe body (18).

4. A casting device for recycled aluminum according to claim 1, characterized in that: First fixing pages (9) are fixed on both sides of the lower end of the first connecting tube body (8), second fixing pages (12) are fixed on both sides of the upper end of the second connecting tube body (11), and third fixing pages (22) are fixed on one side of the upper and lower ends of the outer material passing tube body (18), and the two third fixing pages (22) are respectively fitted with the first fixing page (9) on one side and the second fixing page (12) on one side, and the two third fixing pages (22) are respectively connected to the first fixing page (9) on one side and the second fixing page (12) on one side through an axis.

5. A casting device for recycled aluminum according to claim 4, characterized in that: A fourth fixing page (23) is fixed to the other side of the upper and lower ends of the outer portion of the outer material passing tube body (18), and the two fourth fixing pages (23) are respectively fitted with the first fixing page (9) on the other side and the second fixing page (12) on the other side, and the two fourth fixing pages (23) are respectively fixed to the first fixing page (9) on the other side and the second fixing page (12) on the other side by bolts.

6. A casting device for recycled aluminum according to claim 5, characterized in that: A lower limiting semi-ring (10) is fixed at the rear ends of the first connecting tube body (8) and the second connecting tube body (11), and the inner surface of the lower limiting semi-ring (10) is in contact with the outer surface of the outer material passing tube body (18) on the filter assembly (17). A fixed enclosure (13) is fixed at the upper and lower ends of one side of the outer side of the lower limiting semi-ring (10) along the inner ends of the first fixing page (9) on the other side and the second fixing page (12) on the other side. A limiting fixing groove (14) is formed between the fixed enclosure (13) and the lower limiting semi-ring (10), the first fixing page (9) on the other side and the second fixing page (12) on the other side, and the fourth fixing page (23) is located in the limiting fixing groove (14).

7. A casting device for recycled aluminum according to claim 1, characterized in that: A liquid passage pipe (7) is installed at the upper end of the aluminum liquid box (1), and the lower end of the liquid passage pipe (7) extends to the lower end of the inner cavity (6) for placing the aluminum liquid.

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