Rapid casting mold equipment for aluminum ingots
By introducing movable mold release frames and limit frames into the aluminum ingot rapid casting equipment, combined with screws and gear transmission systems, the problem of aluminum ingots being unable to be fully ejected and structurally inconveniently disassembled is solved, and convenient mold release of aluminum ingots and convenient maintenance of equipment is achieved.
Patent Information
- Application Number
- CN202422440149.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-10
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-10-10
AI Technical Summary
The existing aluminum ingot rapid casting equipment cannot fully eject the aluminum ingot and the control structure is inconvenient to disassemble and maintain, and it is difficult to replace the cover plate and ejection structure.
A rapid casting equipment for aluminum ingots is designed. By setting up a mold release frame and limit frame that can move upwards, combined with a screw and gear transmission system, the complete ejection of the aluminum ingots is achieved, and the cover plate and mold release frame are easily removed and installed through motor drive.
The complete demolding of aluminum ingots is achieved, and the cover plate and demolding structure are easily disassembled and installed, making it convenient for equipment maintenance and maintenance.
Smart Images

Figure CN223277160U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of aluminum ingot production technology, in particular to a rapid aluminum ingot casting device. Background Art
[0002] Aluminum ingots are a silvery-white metal produced by electrolysis and are an important raw material for aluminum alloy manufacturing. Aluminum ingot casting involves preparing pure aluminum or aluminum alloy ingots according to standard composition ratios, heating them to a molten state, pouring them into a mold, and cooling them to form aluminum parts of the desired shape. Casting aluminum alloy ingots uses pure aluminum and recycled aluminum as raw materials. Aluminum ingot casting is widely used in the manufacture of vehicles such as automobiles, trains, subways, ships, and airplanes to reduce their own weight and increase their load capacity. Aluminum ingot casting is also used to produce various aluminum alloy castings, such as engine parts, cylinder blocks, and pump bodies, to meet the diverse needs of the industrial sector.
[0003] A search revealed Chinese patent document CN216297923U, which discloses a mold device for producing aluminum alloy ingots. The device uses a water tank and internal coolant to quickly reduce the temperature. The top plate is reset by the elastic force of a first spring, and the second slider slides within a second groove, further stabilizing the device. However, the following problems still exist:
[0004] When the above-mentioned aluminum ingot rapid casting equipment is in use, although the aluminum ingot can be ejected, it cannot be completely ejected, and the structure for controlling the removal of the aluminum block is not convenient for disassembly and maintenance, and the cover plate and the ejection structure need to be disassembled and replaced. Utility Model Content
[0005] The purpose of the present utility model is to provide an aluminum ingot rapid casting equipment to solve the problem that although the aluminum ingot can be ejected, it cannot be completely ejected, and the structure for controlling the removal of the aluminum block is not convenient for disassembly and maintenance, and the cover plate and the ejection structure need to be disassembled and replaced.
[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a rapid casting device for aluminum ingots, comprising a water tank, wherein a first support rod, a second support rod, a third support rod and a fourth support rod are fixed to the side of the water tank respectively, and the shapes and sizes of the first support rod, the second support rod, the third support rod and the fourth support rod are consistent, a limiting frame is provided on the top of the first support rod, the second support rod, the third support rod and the fourth support rod, and a first connecting column, a second connecting column, a third connecting column and a fourth connecting column are provided at positions on the limiting frame corresponding to the first support rod, the second support rod, the third support rod and the fourth support rod, and the shapes and sizes of the first connecting column, the second support rod, the third support rod and the fourth connecting column are consistent;
[0007] A mold is provided inside the water tank, and two sets of parallel distributed demoulding frames are provided inside the mold. The demoulding frames are embedded in the mold and are slidably connected with the mold.
[0008] Preferably, the first support rod, the second support rod, the third support rod and the fourth support rod are all provided with a first sliding groove with a "convex" cross-section structure, and the interior of the first sliding groove is slidably connected to a first connecting block, and four groups of first connecting blocks are provided, and the four groups of first connecting blocks are fixedly connected to the cover plate.
[0009] Preferably, a first screw rod is provided for internal rotation of the first sliding groove of the first support rod, the second support rod, the third support rod and the fourth support rod, and a first card groove of a rectangular structure is opened near the top of the limit frame of the first screw rod, and the first screw rod is threadedly connected to the first connecting block.
[0010] Preferably, the first support rod, the second support rod, the third support rod and the fourth support rod are also provided with a second sliding groove with a rectangular cross-section, the interior of the second sliding groove is rotatably connected to a second screw rod, and the second screw rod is provided with a second rectangular slot near the top of the limit frame.
[0011] Preferably, two groups of connecting plates are fixed at both ends of the top of the two groups of demolding frames, and a connecting rod with a strip structure is fixed on the top of one end of the connecting plate away from the demolding frame. Two groups of connecting rods are provided, and the two ends of the two groups of connecting rods are respectively connected to the second sliding groove of the first support rod and the second support rod and the second sliding groove of the third support rod and the fourth support rod, and the connecting rod is threadedly connected to the second screw rod.
[0012] Preferably, the first connecting column, the second connecting column, the third connecting column and the fourth connecting column are all rotatably provided with a first connecting gear rod and a second connecting gear rod, and the first connecting gear rod and the second connecting gear rod of the first connecting column, the second connecting column, the third connecting column and the fourth connecting column correspond to the position distribution of the first screw rod and the second screw rod of the first support rod, the second support rod, the third support rod and the fourth support rod. A first clamping block with a rectangular structure is fixed at the bottom of the first connecting gear rod, and the first clamping block is plugged into the first clamping groove. A second clamping block with a rectangular structure is fixed at the bottom of the second connecting gear rod, and the second clamping block is plugged into the second clamping groove.
[0013] Preferably, a first transmission rod is provided between the first connecting column and the fourth connecting column and the first connecting gear rods on the second connecting column and the third connecting column, first gears are fixed at both ends of the first transmission rod, and the first gear is meshed with the first connecting gear rod, a second transmission rod is provided between the first connecting column and the second connecting column and the first connecting gear rod on the third connecting column and the fourth connecting column, second gears are fixed at both ends of the second transmission rod, and the second gear is meshed with the first connecting gear rod, a first transmission gear is fixed in the middle of the second transmission rod between the first connecting column and the second connecting column, and a first motor is installed on one side of the first transmission gear.
[0014] Preferably, a third transmission rod is provided between the second connecting gear rod on the first connecting column and the second connecting column and the second connecting gear rod on the third connecting column and the fourth connecting column, and third gears are fixed at both ends of the third transmission rod, and the third gear is meshed with the second connecting gear rod, a second transmission gear is fixed in the middle of the third transmission rod, and a second motor is installed on one side of the second transmission gear.
[0015] Compared with the prior art, the beneficial effects of the present invention are:
[0016] By setting up a demoulding frame that can move upward, the aluminum ingot inside the mold can be completely taken out of the mold, and the cover covering the mold can also move upward to close the mold. The limit frame that controls the movement of the cover and the demoulding frame at the top can be separated and combined with the first support rod, the second support rod, the third support rod and the fourth support rod, which makes it convenient to inspect and repair the equipment. The engagement of the first card block and the first card slot and the second card block and the second card slot also facilitates the connection and combination of the limit frame with the first screw rod and the second screw rod after installation. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the main structure of the utility model;
[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the limiting frame in the utility model;
[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;
[0020] Figure 4 This is a schematic diagram of the bottom structure of the limiting frame in the utility model;
[0021] Figure 5 This is a schematic diagram of the internal structure of the limiting frame in the utility model;
[0022] Figure 6 This is a schematic diagram of the mold structure in this utility model.
[0023] In the figure: 1, water tank; 101, first support rod; 102, second support rod; 103, third support rod; 104, fourth support rod; 105, first chute; 106, second chute; 2, mold; 3, demoulding frame; 301, connecting plate; 302, connecting rod; 4, cover plate; 401, first connecting block; 5, limit frame; 501, first connecting column; 502, second connecting column; 503, third connecting column; 504, fourth connecting column; 6, first screw rod; 6 01, first slot; 602, first connecting gear rod; 603, first clamping block; 604, first transmission rod; 605, first gear; 606, second transmission rod; 607, second gear; 608, first transmission gear; 609, first motor; 7, second screw rod; 701, second slot; 702, second connecting gear rod; 703, second clamping block; 704, third transmission rod; 705, third gear; 706, second transmission gear; 707, second motor. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.
[0025] Example 1, please refer to Figure 1-6The utility model provides an aluminum ingot rapid molding device, including a water tank 1, a first support rod 101, a second support rod 102, a third support rod 103, a fourth support rod 104, a first chute 105, a second chute 106, a mold 2, a demoulding frame 3, a connecting plate 301, a connecting rod 302, a cover plate 4, a first connecting block 401, a limiting frame 5, a first connecting column 501, a second connecting column 502, a third connecting column 503, a fourth connecting column 504, a first screw rod 6, a first clamping groove 601, a first connecting gear rod 602, a first clamping block 603, a first transmission rod 604, a first gear 605, a second transmission rod 606, a second gear 607, a first transmission gear 608, a first motor 609, a second screw rod 7, a second clamping groove 701, a second connecting gear rod 702, a second clamping block 703, a third transmission rod 704, a third Gear 705, second transmission gear 706, second motor 707, the water tank 1 is respectively fixed with a first support rod 101, a second support rod 102, a third support rod 103 and a fourth support rod 104 from the side, and the first support rod 101, the second support rod 102, the third support rod 103 and the fourth support rod 104 have the same shape and size, the first support rod 101, the second support rod 102, the third support rod 103 and the fourth support rod 104 are all provided with a first sliding groove 105 with a "convex" cross-section structure, the first sliding groove 105 is internally slidably connected with the first connecting block 401, and the first connecting block 401 is provided with four groups, and the four groups of first connecting blocks 401 are fixedly connected to the cover plate 4, the first connecting block 401 provided on the side of the cover plate 4 can be connected with the first screw rod 6, so that the first screw rod 6 can adjust the position of the cover plate 4;
[0026] The first support rod 101, the second support rod 102, the third support rod 103, and the fourth support rod 104 are provided with a first screw rod 6 for internal rotation. The first screw rod 6 is provided with a first slot 601 of rectangular structure near the top of the limit frame 5. The first screw rod 6 is threadedly connected to the first connecting block 401. When the first screw rod 6 rotates, it can drive the first connecting block 401 to move, thereby driving the cover plate 4 to move up and down, thereby closing the mold 2.
[0027] The first support rod 101, the second support rod 102, the third support rod 103, and the fourth support rod 104 are further provided with a second sliding groove 106 with a rectangular cross-section. The second sliding groove 106 is internally rotatably connected to the second screw rod 7. The second screw rod 7 is provided with a second rectangular slot 701 near the top of the limit frame 5. The second slot 701 can facilitate the connection of the second connecting gear rod 702 at the top with the second screw rod 7 through the second clamping block 703, thereby facilitating transmission and driving the second screw rod 7 to rotate.
[0028] Specifically, such as Figure 2 、 Figure 3、 Figure 4 and Figure 5 As shown, a limit frame 5 is set on the top of the first support rod 101, the second support rod 102, the third support rod 103 and the fourth support rod 104, and a first connecting column 501, a second connecting column 502, a third connecting column 503 and a fourth connecting column 504 are set at positions corresponding to the first support rod 101, the second support rod 102, the third support rod 103 and the fourth support rod 104 on the limit frame 5, and the first connecting column 501, the second connecting column 502, the third connecting column 503 and the fourth connecting column 504 have the same shape and size, and the first connecting column 501, the second connecting column 502, the third connecting column 503 and the fourth connecting column 504 are rotatably provided with a first connecting gear rod 602 and a second connecting gear rod 702 inside the first connecting column 501, the second connecting column 502, the third connecting column 503 and the fourth connecting column 504, and the first connecting column 501, the second connecting column 502, the third connecting column 503 and the fourth connecting column 504 The first connecting gear rod 602 and the second connecting gear rod 702 of the connecting column 503 and the fourth connecting column 504 correspond to the position distribution of the first screw rod 6 and the second screw rod 7 of the first support rod 101, the second support rod 102, the third support rod 103, and the fourth support rod 104. A first clamping block 603 with a rectangular structure is fixed to the bottom of the first connecting gear rod 602, and the first clamping block 603 is plugged into the first card slot 601. A second clamping block 703 with a rectangular structure is fixed to the bottom of the second connecting gear rod 702, and the second clamping block 703 is plugged into the second card slot 701. In this way, when the first connecting gear rod 602 rotates, the connection between the second clamping block 703 and the second card slot 701 can drive the corresponding first screw rod 6 below to rotate, thereby facilitating the disassembly and installation of the limit frame 5.
[0029] Specifically, such as Figure 2 、 Figure 3 、 Figure 4 and Figure 5As shown, a first transmission rod 604 is provided between the first connecting column 501 and the fourth connecting column 504 and the first connecting gear rod 602 on the second connecting column 502 and the third connecting column 503, and a first gear 605 is fixed at both ends of the first transmission rod 604, and the first gear 605 is meshed with the first connecting gear rod 602, a second transmission rod 606 is provided between the first connecting column 501 and the second connecting column 502 and the first connecting gear rod 602 on the third connecting column 503 and the fourth connecting column 504, and a second gear 607 is fixed at both ends of the second transmission rod 606, and the second gear 607 is meshed with the first connecting gear rod 602, the first connecting column 501 and the third connecting column 503 and the fourth connecting column 504 A first transmission gear 608 is fixed in the middle of the second transmission rod 606 between the two connecting columns 502. A first motor 609 is installed on one side of the first transmission gear 608. After the first motor 609 is started, it can drive the second transmission rod 606 to rotate through the first transmission gear 608, and then the second gears 607 at both ends of the second transmission rod 606 can drive the first connecting gear rod 602 to rotate. The first transmission rod 604 and the first gear 605 can make the first connecting gear rods 602 on the first connecting column 501 and the second connecting column 502 rotate together with the first connecting gear rods 602 on the third connecting column 503 and the fourth connecting column 504, thereby playing a transmission role.
[0030] Specifically, such as Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, a third transmission rod 704 is provided between the second connecting gear rod 702 on the first connecting column 501 and the second connecting column 502 and the second connecting gear rod 702 on the third connecting column 503 and the fourth connecting column 504, and third gears 705 are fixed at both ends of the third transmission rod 704, and the third gear 705 is meshed with the second connecting gear rod 702, and a second transmission gear 706 is fixed in the middle of the third transmission rod 704, and a second motor 707 is installed on one side of the second transmission gear 706. When the second motor 707 is started, the third transmission rod 704 can be driven to rotate through the second transmission gear 706, and then the third transmission rod 704 can drive the second connecting gear rod 702 to rotate through the third gears 705 at both ends, thereby providing kinetic energy for the second connecting gear rod 702;
[0031] Specifically, such as Figure 2 and Figure 6As shown, a mold 2 is provided inside the water tank 1, and two groups of parallel demoulding frames 3 are provided inside the mold 2. Two groups of connecting plates 301 are fixed at both ends of the top of the two groups of demoulding frames 3. A connecting rod 302 with a strip structure is fixed on the top of one end of the connecting plate 301 away from the demoulding frame 3. Two groups of connecting rods 302 are provided, and the two ends of the two groups of connecting rods 302 are respectively connected to the second slide groove 106 of the first support rod 101 and the second support rod 102 and the second slide groove 106 of the third support rod 103 and the fourth support rod 104, and the connecting rod 302 is threadedly connected to the second screw rod 7, so that when the second screw rod 7 rotates, the connecting rod 302 can be driven to move, and then the two groups of demoulding frames 3 can be lifted upward by the connecting plate 301, so that the internal aluminum ingot can be taken out, and the demoulding frame 3 is embedded in the mold 2 and slidably connected with the mold 2.
[0032] When the embodiment of the present application is in use: a demoulding frame 3 that can move upward is set inside the mold 2, so that when the demoulding frame 3 moves upward, the aluminum ingot formed by the mold 2 can be taken out from the inside of the mold 2, which is convenient for demoulding the aluminum ingot, and the connecting plates 301 fixed at both ends of the demoulding frame 3 can be moved on the first support rod 101, the second support rod 102, the third support rod 103, and the fourth support rod 104 through the second slide groove 106 through the connecting rod 302. When the second motor 707 is started, the third transmission rod 704 can be driven to rotate by the second transmission gear 706. When the third transmission rod 704 rotates, the third gear 705 at both ends can be driven to rotate, and then the second connecting gear rod 702 on one side can be driven to rotate. When the second connecting gear rod 702 rotates, the second screw rod 7 below can be driven to rotate through the second clamping block 703 and the second clamping groove 701. When the second screw rod 7 rotates, the connecting rod 302 can be driven to move upward, so that the connecting rod 302 can drive the demoulding frame 3 to move upward through the connecting plate 301, and the aluminum ingot inside the mold 2 is lifted, which is convenient for demoulding the aluminum ingot.
[0033] The cover plate 4 can slide on the first support rod 101, the second support rod 102, the third support rod 103, and the fourth support rod 104. By starting the first motor 609, the rotation of the first motor 609 will drive it to rotate through the first transmission gear 608 in the middle of the second transmission rod 606. When the second transmission rod 606 rotates, the first connecting gear rod 602 can be driven to rotate through the second gears 607 at both ends. At this time, the first screw rod 6 in the middle of the first connecting column 501 and the second connecting column 502 rotates. At the same time, the first transmission rod 604 provided with the first gear 605 also rotates together with the first connecting gear rod 602, and then the first connecting gear rod 602 on the third connecting column 503 and the fourth connecting column 504 can rotate together, and then the first screw rod 6 inside the third support rod 103 and the fourth support rod 104 will also start to rotate at the same time. In this way, the position of the cover plate 4 can be adjusted, so as to facilitate the control of the closing of the cover plate 4 to the mold 2.
[0034] The limiting frame 5 that provides power can be separated from the first support rod 101, the second support rod 102, the third support rod 103, and the fourth support rod 104. After the limiting frame 5 is separated, the connected connecting rod 302 and the cover plate 4 can be easily disassembled, which is convenient for maintenance and inspection of the equipment. In this way, a rapid casting device for aluminum ingots is ready for use. It should be noted that the present invention is a rapid casting device for aluminum ingots. The components are all universal standard parts or components known to those skilled in the art. The structure and principle thereof can be known to those skilled in the art through technical manuals or through conventional experimental methods. In the idle area of the device, all the above-mentioned electrical components, which refer to power elements, electrical components, and adapted monitoring computers and power supplies, are connected through wires. The specific connection means should refer to the above-mentioned working principle. The electrical connection is completed in the working order of each electrical component. The detailed connection means are well-known technologies in the art.
[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A rapid aluminum ingot casting device, comprising a water tank (1), characterized in that: The water tank (1) is fixed with a first support rod (101), a second support rod (102), a third support rod (103) and a fourth support rod (104) from the side, and the shapes and sizes of the first support rod (101), the second support rod (102), the third support rod (103) and the fourth support rod (104) are consistent; a limit frame (5) is provided on the top of the first support rod (101), the second support rod (102), the third support rod (103) and the fourth support rod (104); and a first connecting column (501), a second connecting column (502), a third connecting column (503) and a fourth connecting column (504) are provided at positions on the limit frame (5) corresponding to the first support rod (101), the second support rod (102), the third support rod (103) and the fourth support rod (104); and the shapes and sizes of the first connecting column (501), the second supporting column (502), the third supporting column (503) and the fourth supporting column (504) are consistent; A mold (2) is provided inside the water tank (1), and two sets of parallelly distributed demoulding frames (3) are provided inside the mold (2). The demoulding frames (3) are embedded in the mold (2) and are slidably connected to the mold (2).
2. The aluminum ingot rapid casting equipment according to claim 1, characterized in that: The first support rod (101), the second support rod (102), the third support rod (103), and the fourth support rod (104) are all provided with a first sliding groove (105) having a "convex" cross-section structure. The first sliding groove (105) is internally slidably connected to a first connecting block (401). Four groups of the first connecting blocks (401) are provided, and the four groups of first connecting blocks (401) are fixedly connected to the cover plate (4).
3. The aluminum ingot rapid casting equipment according to claim 1, characterized in that: A first screw rod (6) is provided for internal rotation in the first sliding groove (105) of the first support rod (101), the second support rod (102), the third support rod (103) and the fourth support rod (104); a first slot (601) of a rectangular structure is provided on the top of the first screw rod (6) near the limit frame (5); and the first screw rod (6) is threadedly connected to the first connecting block (401).
4. The aluminum ingot rapid casting equipment according to claim 1, characterized in that: The first support rod (101), the second support rod (102), the third support rod (103), and the fourth support rod (104) are further provided with a second slide groove (106) with a rectangular cross-section. The second slide groove (106) is internally rotatably connected to a second screw rod (7). The second screw rod (7) is provided with a second slot (701) with a rectangular structure near the top of the limit frame (5).
5. The aluminum ingot rapid casting equipment according to claim 1, characterized in that: Two groups of connecting plates (301) are fixed at both ends of the top of the two groups of demoulding frames (3), and a connecting rod (302) with a strip structure is fixed on the top of one end of the connecting plate (301) away from the demoulding frame (3). Two groups of connecting rods (302) are provided, and the two ends of the two groups of connecting rods (302) are respectively connected to the second sliding groove (106) of the first support rod (101) and the second support rod (102) and the second sliding groove (106) of the third support rod (103) and the fourth support rod (104), and the connecting rod (302) is threadedly connected to the second screw rod (7).
6. The aluminum ingot rapid casting equipment according to claim 1, characterized in that: The first connecting column (501), the second connecting column (502), the third connecting column (503), and the fourth connecting column (504) are all rotatably provided with a first connecting gear rod (602) and a second connecting gear rod (702), and the first connecting gear rod (602) and the second connecting gear rod (702) of the first connecting column (501), the second connecting column (502), the third connecting column (503), and the fourth connecting column (504) are connected to the first support rod (101) and the second support rod (102). The positions of the first screw rod (6) and the second screw rod (7) of the third support rod (103) and the fourth support rod (104) correspond to each other; a first clamping block (603) with a rectangular structure is fixed at the bottom of the first connecting gear rod (602), and the first clamping block (603) is plugged into the first clamping groove (601); a second clamping block (703) with a rectangular structure is fixed at the bottom of the second connecting gear rod (702), and the second clamping block (703) is plugged into the second clamping groove (701).
7. The aluminum ingot rapid casting equipment according to claim 1, characterized in that: A first transmission rod (604) is provided between the first connecting column (501) and the fourth connecting column (504) and the first connecting gear rod (602) on the second connecting column (502) and the third connecting column (503). First gears (605) are fixed at both ends of the first transmission rod (604). The first gear (605) is meshedly connected to the first connecting gear rod (602). The first connecting column (501) and the second connecting column (502) and the third connecting column (503) and the fourth connecting column (503) are meshedly connected. A second transmission rod (606) is provided between the first connecting gear rod (602) on the column (504), second gears (607) are fixed at both ends of the second transmission rod (606), and the second gear (607) is meshedly connected to the first connecting gear rod (602), a first transmission gear (608) is fixed in the middle of the second transmission rod (606) between the first connecting column (501) and the second connecting column (502), and a first motor (609) is installed on one side of the first transmission gear (608).
8. The aluminum ingot rapid casting equipment according to claim 1, characterized in that: A third transmission rod (704) is provided between the second connecting gear rod (702) on the first connecting column (501) and the second connecting column (502) and the second connecting gear rod (702) on the third connecting column (503) and the fourth connecting column (504), and third gears (705) are fixed at both ends of the third transmission rod (704), and the third gear (705) is meshedly connected with the second connecting gear rod (702), a second transmission gear (706) is fixed in the middle of the third transmission rod (704), and a second motor (707) is installed on one side of the second transmission gear (706).
Citation Information
Patent Citations
Casting mold equipment for aluminum alloy ingot production
CN216297923U