High-precision aluminum alloy casting device and casting method

Abstract

The invention discloses a high-precision aluminum alloy casting device and method, and relates to the technical field of casting. The high-precision aluminum alloy casting device comprises a rack, and a conveying chain is arranged on the rack; the mold blocks are uniformly arranged on the conveying chain; the die block is in transmission connection with the flow dividing barrel and the linkage assembly through the transmission assembly; according to the aluminum slag removal device, the slag scraping assembly in the moving assembly continuously removes aluminum slag floating on the surface of molten aluminum in the mold block in a reciprocating mode through the transmission assembly; the guide strip in the linkage assembly enables the slag scraping plate to sink into the inner cavity of the mold block and clear away aluminum slag floating on the surface of molten aluminum, the guide strip is matched with the scraping strip to clear away the aluminum slag adhering to the slag scraping plate, the phenomenon that the aluminum slag is synchronously taken away along with the slag scraping plate or taken into the mold block again is reduced, and the efficiency of clearing away the aluminum slag in the molten aluminum is improved.

Description

Technical Field

[0001] The present invention relates to the field of casting technology, and particularly to a high-precision aluminum alloy casting device and a casting method. Background Art

[0002] Casting is a metal hot working process that humans mastered relatively early. Casting is a method of pouring liquid metal into a casting cavity adapted to the shape of the part, and after it cools and solidifies, a part or blank can be obtained; the substance to be cast is mostly metal that was originally solid but heated to a liquid state, and the material of the casting mold can be sand, metal or even ceramic; depending on different requirements, different methods will be used. Since modern times, with the development of technology and demand, casting machines have gradually appeared in people's vision. The invention of casting machines has improved the casting speed, accuracy and development requirements.

[0003] For example, in the patent with the publication number CN207695606U, titled "An Automatic Online Surface Treatment Device for Aluminum Alloy Ingot", and the authorization announcement date of August 7, 2018, it includes: a support frame erected on a conveyor chain; a slide rail with both ends internally connected to the inner walls at both ends in the width direction of the support frame; a motor erected on the slide rail; a robotic arm with one end drivingly connected to the output shaft of the motor; at least one scraper with the upper end connected to the other end of the robotic arm and the lower end surface located above the mold; a PLC controller erected on one side of the conveyor chain and communicatively connected to the motor to form control of the motor; the device uses robot PLC control to achieve automatic online removal of surface aluminum slag, with high working quality, directly reducing labor costs, eliminating the phenomena of missed treatment and incomplete treatment, improving the qualification rate, reducing the high-temperature working time of personnel, eliminating potential safety hazard factors, and ensuring personnel safety.

[0004] The deficiencies of the prior art are that during the process of casting molten aluminum, aluminum slag will inevitably appear when aluminum is in a molten state, which leads to the phenomenon of aluminum slag floating in the mold groove. During the production process of batch aluminum plates, most enterprises use a mechanical swing arm for cleaning. The mechanical swing arm uses a spring piece to cooperate with a stop rod to shed the cleaned aluminum slag, resulting in the splashing of the scraped aluminum slag under the action of the spring piece structure. How to reduce the splashing of the mechanical swing arm during the process of cleaning aluminum slag without affecting the cleaning efficiency of aluminum slag is an urgent problem that needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of the present invention is to provide a high-precision aluminum alloy casting device and a casting method, wherein a slag scraping component in a moving component is used to continuously reciprocate and clean the aluminum slag floating on the surface of the aluminum liquid in a mold block through a transmission component; a guide bar in a linkage component is used to immerse a slag scraping plate in the inner cavity of the mold block and clean the aluminum slag floating on the surface of the aluminum liquid, and the scraping bar is used to clean the aluminum slag adhered to the scraping plate itself, thereby reducing the phenomenon that the aluminum slag is synchronously carried away or brought into the mold block again with the scraping plate, and improving the efficiency of cleaning the aluminum slag in the aluminum liquid.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a high-precision aluminum alloy casting device, comprising: a frame, a conveying chain provided on the frame; further comprising a plurality of mold blocks, which are evenly arranged on the conveying chain; further comprising a shunt cylinder and a linkage assembly, wherein the mold block is respectively connected to the shunt cylinder and the linkage assembly through a transmission assembly; further comprising a moving assembly, wherein the moving assembly reciprocates along the axial direction of the mold block through the linkage assembly, and a scraping assembly movably connected to the moving assembly continuously scrapes the aluminum alloy casting liquid in the inner cavity of the mold block; the scraping assembly comprises a movable frame, wherein the top end of the movable frame is rotatably connected to a rotating roller, and the rotating roller is fitted with a guide strip, and one end of the top end of the movable frame close to the rotating roller is symmetrically fixedly connected to a fixed block; the two ends of the movable frame are symmetrically fixedly connected to directional strips; the bottom end of the movable frame is movably provided with a connecting rod, and the two ends of the connecting rod are symmetrically fixedly connected to fixed ears, the top end of the fixed ear is fixedly connected to a reset spring, and the other end of the reset spring is fixed to the movable frame, and the bottom end of the fixed ear is fixedly connected to a scraping plate; further comprising a slag collecting bucket, and the slag collecting bucket is used to load the aluminum slag cleaned by the scraping assembly;

[0007] As a further description of the above technical solution:

[0008] The linkage assembly includes a U-shaped frame with one end fixedly connected to a positioning seat, the positioning seat is rotatably provided with a rotating shaft rod, one end of the rotating shaft rod is fixedly connected to a second bevel gear, the other end of the rotating shaft rod is fixedly connected to a pulley, a connecting rod is sleeved between the two pulleys, and one end of the connecting rod is movably provided with a shifting rod.

[0009] As a further description of the above technical solution:

[0010] The bottom end of the U-shaped frame is fixedly connected with a directional rod, and the directional rod is slidably connected with a moving component. The bottom end of the directional rod is provided with a guide bar, and the guide bar is fixed on the U-shaped frame.

[0011] As a further description of the above technical solution:

[0012] The moving assembly comprises a sliding block, and the sliding block is slidably connected to the directional rod, arc plates are symmetrically fixedly connected at both ends of the sliding block, and a limiting strip is fixedly connected at the bottom end of the arc plate.

[0013] As a further description of the above technical solution:

[0014] One end of the limiting strip is provided with a directional groove, and the directional groove is adapted to the directional strip. The top end of the limiting strip is fixedly connected with a support spring, and the top end of the support spring is fixedly connected to the fixed block.

[0015] As a further description of the above technical solution:

[0016] Both ends of the slider are symmetrically and fixedly connected with connecting rods. The bottom end of the connecting rod is fixedly connected with a scraping strip, and the top end of the connecting rod is fixedly connected with a sleeve rod, and the sleeve rod is adapted to the shifting rod.

[0017] A high-precision aluminum alloy casting method includes the following steps: Step 1: The melting furnace sends the molten aluminum liquid into the shunt cylinder through the diversion frame, and the shunt cylinder guides the aluminum liquid into the mold block for forming; Step 2: The aluminum slag in the inner cavity of the mold block is cleaned by the slag scraping assembly; Step 3: After the aluminum liquid is cooled, it forms an aluminum ingot and is separated from the mold block.

[0018] The present invention provides a high-precision aluminum alloy casting device and a casting method, having the following

[0019] Beneficial effects:

[0020] In the present invention, through the transmission assembly, the slag scraping assembly in the moving assembly continuously and reciprocally cleans the aluminum slag floating on the surface of the aluminum liquid in the mold block; the guiding strip in the linkage assembly enables the slag scraping plate to immerse into the inner cavity of the mold block and clean the aluminum slag floating on the surface of the aluminum liquid, and cooperates with the scraping strip to clean the aluminum slag adhered to the slag scraping plate itself, reducing the phenomenon that the aluminum slag follows the slag scraping plate and is taken away synchronously or brought into the mold block again, and improving the efficiency of cleaning the aluminum slag in the aluminum liquid. Description of the Drawings

[0021] Figure 1 It is a schematic structural diagram of a high-precision aluminum alloy casting device and a casting method proposed by the present invention;

[0022] Figure 2 In the present invention Figure 1 The partial structural diagram at A;

[0023] Figure 3 It is a schematic structural diagram of the transmission chain in the present invention;

[0024] Figure 4 It is a schematic structural diagram of the transmission assembly in the present invention;

[0025] Figure 5 It is a schematic structural diagram of the linkage assembly in the present invention;

[0026] Figure 6 It is a schematic structural diagram of the guiding strip in the present invention;

[0027] Figure 7 This is a schematic structural diagram of the sleeve rod in the present invention;

[0028] Figure 8 This is a schematic structural diagram of the moving component in the present invention;

[0029] Figure 9 In the present invention Figure 8 This is a partial structural schematic diagram at position B in

[0030] Figure 10 This is a schematic structural diagram of the slag scraping component in the present invention.

[0031] Legend: 1, frame; 2, conveying chain; 21, output shaft; 3, die block; 4, shunt cylinder; 41, rotating shaft; 5, transmission component; 51, bracket; 52, driven shaft; 53, bevel gear one; 54, transmission chain; 6, linkage component; 61, U-shaped frame; 62, positioning seat; 63, rotating shaft rod; 64, pulley; 65, transmission belt; 66, shifting rod; 67, bevel gear two; 68, guiding rod; 69, guiding strip; 7, moving component; 71, slider; 72, arc plate; 73, limiting strip; 731, guiding groove; 74, supporting spring; 75, connecting rod; 76, scraping strip; 77, sleeve rod; 8, slag scraping component; 81, movable frame; 82, rotating roller; 83, guiding strip; 84, connecting rod; 85, fixed ear; 86, reset spring; 87, slag scraping plate; 88, fixed block; 9, slag collection hopper. Specific embodiments

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0033] Refer to Figure 1-10A high-precision aluminum alloy casting device and casting method, comprising: a frame 1, a conveyor chain 2 is arranged on the frame 1; a plurality of mold blocks 3 are evenly arranged on the conveyor chain 2; a shunt cylinder 4 and a linkage assembly 6 are also included, and the mold block 3 is respectively connected to the shunt cylinder 4 and the linkage assembly 6 through a transmission assembly 5; a moving assembly 7 is also included, and the moving assembly 7 reciprocates along the axial direction of the mold block 3 through the linkage assembly 6, and a scraping assembly 8 movably connected to the moving assembly 7 continuously scrapes the aluminum alloy casting liquid in the inner cavity of the mold block 3; the scraping assembly 8 includes a movable frame 81, and the top of the movable frame 81 rotates The movable frame 81 is movably connected with a rotating roller 82, and the rotating roller 82 is fitted with the guide strip 69. A fixed block 88 is symmetrically fixedly connected to one end of the top of the movable frame 81 close to the rotating roller 82; directional strips 83 are symmetrically fixedly connected to both ends of the movable frame 81; a connecting rod 84 is movably provided at the bottom end of the movable frame 81, and fixed ears 85 are symmetrically fixedly connected to both ends of the connecting rod 84. A reset spring 86 is fixedly connected to the top end of the fixed ear 85, and the other end of the reset spring 86 is fixed to the movable frame 81, and a scraper plate 87 is fixedly connected to the bottom end of the fixed ear 85; a slag collecting bucket 9 is also included, and the slag collecting bucket 9 is used to load the aluminum slag cleaned by the scraper assembly 8;

[0034] Specifically, the frame 1 is a rectangular frame support structure, the conveyor chain 2 rotatably connected in the bracket 51 drives the mold block 3 to rotate, and the diverter cylinder 4 rotatably arranged at the top of the mold block 3 is adapted to the guide structure for guiding the casting aluminum liquid, so that the aluminum liquid flows from the smelting furnace through the guide structure into the diverter cylinder 4, and the aluminum liquid is introduced into the mold block 3 for molding through the diverter cylinder 4. The transmission component 5 is used to synchronously move the conveyor chain 2 connected with the linkage component 6, the diverter cylinder 4 and the mold block 3, so that the diverter cylinder 4 synchronously introduces the aluminum liquid into the mold on the conveyor chain 2, and the linkage component 6 drives the moving component 7 to reciprocate horizontally along the mold block 3 The scraper assembly 8 is moved, and the aluminum slag in the cast aluminum liquid is cleaned by the scraper assembly 8. The guide bar 69 in the linkage assembly 6 is used to realize that the scraper assembly 8 is immersed in the mold block 3 to clean the aluminum slag, and the moving assembly 7 is used to clean the aluminum slag adhered to the scraper plate 87. The device realizes that the scraper assembly 8 in the moving assembly 7 performs uninterrupted reciprocating cleaning of the aluminum slag in the mold block 3 through the transmission assembly 5, and the guide bar 69 in the linkage assembly 6 realizes that the scraper assembly 8 is immersed in the mold block 3 to clean the aluminum slag, and the moving assembly 7 is used to clean the aluminum slag adhered to itself, thereby improving the efficiency of the device in cleaning the aluminum slag in the mold block 3;

[0035] In the slag scraping assembly 8, the movable frame 81 is movably arranged within the limit strip 73. The stability of the movable frame 81 during vertical movement is defined by the guiding strips 83 fixedly connected to both ends of the movable frame 81. During the process of scraping the aluminum slag in the mold block 3 by the slag scraping plate 87, the slag scraping plate 87 immersed in the mold block 3 moves synchronously with the mold block 3. After the slag scraping plate 87 separates from the mold block 3, the return spring 86 drives the slag scraping plate 87 to reset. During the cleaning process of this step, the influence of the mold block 3 on the synchronous movement of the slag scraping plate 87 is relatively small and does not affect the normal operation of the slag scraping plate 87. This structure is used to reduce the occurrence of hard friction between the mold block 3 and the slag scraping plate 87;

[0036] The linkage assembly 6 includes a U-shaped frame 61 with a positioning seat 62 fixedly connected to one end. A rotating shaft rod 63 is rotatably arranged in the positioning seat 62. A second bevel gear 67 is fixedly connected to one end of the rotating shaft rod 63, and a pulley 64 is fixedly connected to the other end of the rotating shaft rod 63. A connecting rod 75 is sleeved between the two pulleys 64, and a shifting rod 66 is movably arranged at one end of the connecting rod 75; A guiding rod 68 is fixedly connected to the bottom end of the U-shaped frame 61, and a moving assembly 7 is slidably connected to the guiding rod 68. A guiding strip 69 is arranged at the bottom end of the guiding rod 68, and the guiding strip 69 is fixed on the U-shaped frame 61.

[0037] Specifically, in the linkage assembly 6, a rotating shaft rod 63 is rotatably arranged in the symmetrically fixedly connected positioning seats 62 in the U-shaped frame 61. The first bevel gear 53 fixedly connected to one end of the rotating shaft rod 63 is in transmission connection with the transmission assembly 5, so that the pulley 64 fixedly connected to the other end of the rotating shaft rod 63 is driven to move by the transmission belt 65 sleeved thereon. The shifting rod 66 movably connected to one end of the transmission belt 65 is in transmission connection with the slag scraping assembly 8, realizing that the transmission belt 65 drives the slag scraping assembly 8 to reciprocate along the transverse axial direction of the mold block 3 through the shifting rod 66, which is convenient for improving the efficiency of scraping the aluminum slag in the mold block 3 by the slag scraping assembly 8.

[0038] The moving assembly 7 includes a slider 71, and the slider 71 is slidably connected to the guiding rod 68. Arc-shaped plates 72 are symmetrically and fixedly connected to both ends of the slider 71, and a limit strip 73 is fixedly connected to the bottom end of the arc-shaped plate 72; A guiding groove 731 is opened at one end of the limit strip 73, and the guiding groove 731 is adapted to the guiding strip 83. A support spring 74 is fixedly connected to the top end of the limit strip 73, and the top end of the support spring 74 is fixedly connected to the fixed block 88; Connecting rods 75 are symmetrically and fixedly connected to both ends of the slider 71. A scraping strip 76 is fixedly connected to the bottom end of the connecting rod 75, and a sleeve rod 77 is fixedly connected to the top end of the connecting rod 75, and the sleeve rod 77 is adapted to the shifting rod 66.

[0039] Specifically, the slider 71 in the moving component 7 is slidably connected to the guiding rod 68. The guiding rod 68 is fixed on the U-shaped frame 61. The movement direction of the slider 71 is defined by the guiding rod 68. The limiting strip 73 fixedly connected by the arc-shaped plate 72 and the guiding groove 731 opened in the limiting strip 73 are used to limit the movement direction of the movable frame 81 in the slag scraping component 8. The supporting spring 74 fixedly connected in the limiting strip 73 is connected to the fixing block 88 fixedly connected to the movable frame 81 in the slag scraping component 8. The rotating roller 82 rotatably connected to the top end of the movable frame 81 is pressed against the guiding strip 69 by the supporting spring 74. The structure of the guiding strip 69 is convex downward in the middle and concave upward at both ends (the rotating roller 82 is used as an orientation reference). It is convenient for the rotating roller 82 to drive the movable frame 81 and the slag scraping plate 87 to immerse the slag scraping plate 87 into the mold block 3 at the convex part. When the rotating roller 82 is at the depressions provided at both ends, the supporting spring 74 drives the slag scraping plate 87 connected to the movable frame 81 to contact the scraping strip 76, so that the aluminum slag adhered to the slag scraping plate 87 is cleaned by the scraping strip 76 under the elastic support of the supporting spring 74, realizing the self-cleaning of the surface of the slag scraping plate 87, avoiding the phenomenon that it is not easy to clean after the aluminum slag cools and forms, and making it easier to scrape the slag subsequently;

[0040] The transmission component 5 includes a bracket 51. One end of the bracket 51 is rotatably provided with a driven shaft 52. One end of the driven shaft 52 is fixedly connected with a first bevel gear 53, and the first bevel gear 53 meshes with a second bevel gear 67. A transmission chain 54 is sleeved on the other end of the driven shaft 52, and the transmission chain 54 is in transmission connection with a rotating shaft 41 and an output shaft 21.

[0041] Specifically, the transmission chain 54 in the transmission component 5 sleeves the driven shaft 52, the rotating shaft 41 and the output shaft 21 respectively, and the rotating diameter of the driven shaft 52 is smaller than that of the rotating shaft 41 and the output shaft 21. While realizing synchronous movement, the driven shaft 52 is faster than the rotating shaft 41 and the output shaft 21, increasing the moving speed of the slag scraping component 8 along the axial direction of the mold block 3 to be greater than the moving speed of the mold block 3 itself, and reducing the phenomenon of hard friction between the slag scraping component 8 and the mold.

[0042] Working principle: Start the driving device to drive the conveying chain 2 on the frame 1 to move. The conveying chain 2 drives multiple die blocks 3 to move in a specific direction. The conveying chain 2 connecting the linkage component 6, the shunt cylinder 4 and the die blocks 3 moves synchronously through the transmission component 5. When the pulley 64 fixedly connected to the rotating shaft rod 63 in the linkage component 6 and the transmission belt 65 sleeved on the pulley 64 move under the drive of the transmission component 5, the lever 66 movably connected to one end of the transmission belt 65 is in transmission connection with the slag scraping component 8, realizing that the transmission belt 65 drives the slag scraping component 8 to reciprocate horizontally along the die block 3 (the vertical direction of the movement of the die block 3). The slag scraping component 8 cleans the aluminum slag in the die block 3 and cooperates with the scraping strip 76 for self-cleaning. Among them, the key is that the structure of the guiding strip 69 is convex in the middle and concave at both ends (the rotating roller 82 is used as an orientation reference), which is convenient for the rotating roller 82 to drive the movable frame 81 and the slag scraping plate 87 to make the slag scraping plate 87 sink into the die block 3 at the convex part. When the rotating roller 82 is at the concave parts arranged at both ends, the support spring 74 drives the slag scraping plate 87 connected to the movable frame 81 to contact the scraping strip 76, so that the aluminum slag adhered to the slag scraping plate 87 is scraped by the scraping strip 76 under the elastic support of the support spring 74 for self-cleaning of the slag scraping plate 87. Finally, the self-cleaned aluminum slag is collected and processed by the slag collecting hopper 9.

[0043] A high-precision aluminum alloy casting method includes the following steps: Step 1: The melting furnace sends the molten aluminum liquid into the shunt cylinder 4 through the diversion frame, and the shunt cylinder 4 guides the aluminum liquid into the die block 3 for forming; Step 2: The aluminum slag in the inner cavity of the die block 3 is cleaned by the slag scraping component 8; Step 3: After the aluminum liquid is cooled, it forms an aluminum ingot and is separated from the die block 3.

[0044] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and its concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A high-precision aluminum alloy casting device, characterized in that: Includes: The racks and frames are equipped with conveyor chains; Also included are a plurality of mold blocks, which are evenly arranged on a conveyor chain; It also includes a flow divider and a linkage assembly, and the mold block is respectively connected to the flow divider and the linkage assembly through the transmission assembly; It also includes a moving component, which reciprocates along the axial direction of the mold block through the linkage component, and a scraping component movably connected to the moving component continuously scrapes the aluminum alloy casting liquid in the inner cavity of the mold block; The scraper assembly includes a movable frame, the top of the movable frame is rotatably connected to a rotating roller, and the rotating roller is in contact with the guide strip, and the top of the movable frame is symmetrically fixedly connected to a fixed block at one end close to the rotating roller; the two ends of the movable frame are symmetrically fixedly connected to directional strips; the bottom of the movable frame is movably provided with a connecting rod, and the two ends of the connecting rod are symmetrically fixedly connected to fixing ears, the top of the fixing ear is fixedly connected to a return spring, and the other end of the return spring is fixed to the movable frame, and the bottom of the fixing ear is fixedly connected to a scraper plate; It also includes a slag collecting bucket, and the slag collecting bucket is used to load the aluminum slag cleaned by the slag scraping assembly.

2. A high-precision aluminum alloy casting device according to claim 1, characterized in that: The linkage assembly includes a U-shaped frame with one end fixedly connected to a positioning seat, the positioning seat is rotatably provided with a rotating shaft rod, one end of the rotating shaft rod is fixedly connected to a second bevel gear, the other end of the rotating shaft rod is fixedly connected to a pulley, a connecting rod is sleeved between the two pulleys, and one end of the connecting rod is movably provided with a shifting rod.

3. A high-precision aluminum alloy casting device according to claim 2, characterized in that: The bottom end of the U-shaped frame is fixedly connected with a directional rod, and the directional rod is slidably connected with a moving component. The bottom end of the directional rod is provided with a guide bar, and the guide bar is fixed on the U-shaped frame.

4. A high-precision aluminum alloy casting device according to claim 1, characterized in that: The moving assembly comprises a sliding block, and the sliding block is slidably connected to the directional rod, arc plates are symmetrically fixedly connected at both ends of the sliding block, and a limiting strip is fixedly connected at the bottom end of the arc plate.

5. A high-precision aluminum alloy casting device according to claim 4, characterized in that: An orientation slot is formed at one end of the limit bar, and the orientation slot is matched with the orientation bar. A support spring is fixedly connected to the top of the limit bar, and the top of the support spring is fixedly connected to the fixed block.

6. A high-precision aluminum alloy casting device according to claim 4, characterized in that: The two ends of the sliding block are symmetrically fixedly connected with connecting rods, the bottom end of the connecting rod is fixedly connected with a scraper strip, the top end of the connecting rod is fixedly connected with a sleeve rod, and the sleeve rod is adapted to the shifting rod.

7. A high-precision aluminum alloy casting device according to claim 1, characterized in that: The transmission assembly includes a bracket, one end of the bracket is rotatably provided with a driven shaft, one end of the driven shaft is fixedly connected with bevel gear 1, and bevel gear 1 is meshed with bevel gear 2, the other end of the driven shaft is sleeved with a transmission chain, and the transmission chain is transmission-connected with a rotating shaft and an output shaft.

8. A high-precision aluminum alloy casting method, characterized in that: The casting device according to any one of claims 1 to 7 is implemented, comprising the following steps: Step 1: The smelting furnace sends the molten aluminum liquid into the diversion cylinder through the guide frame, and then guides the aluminum liquid into the mold block for molding through the diversion cylinder; Step 2: clean the aluminum slag from the aluminum liquid cast in the inner cavity of the mold block through the slag scraping component; Step 3: After the aluminum liquid cools, it forms an aluminum ingot and is separated from the mold block.

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