Apparatus for automatically cleaning the surface of an aluminium water table

Abstract

This utility model relates to an automatic device for cleaning oxide scale from the surface of molten aluminum. It includes several aluminum ingot casting lines arranged side-by-side, an industrial robot positioned on one side of each casting line, and several casting molds on the surface of each casting line. One end of each casting line is equipped with an aluminum liquid distributor capable of discharging molten aluminum. The bottom outlet of the aluminum liquid distributor is aligned with the casting mold cavity on the surface of the casting line. The aluminum liquid distributor rotates as the casting molds on the casting line move. The end of the industrial robot is equipped with a gripper mechanism capable of scooping up oxide scale. During the solidification process of the aluminum ingots on the casting line, the industrial robot and the gripper mechanism work together to automatically scoop up the oxide scale inside the casting molds and place it in an oxide scale storage tank for centralized processing and collection. This device is suitable for large-scale automated production lines.

Description

Technical Field

[0001] This utility model relates to the field of aluminum ingot production technology, specifically to a device for automatically cleaning oxide scale from the surface of molten aluminum. Background Technology

[0002] In aluminum ingot production lines, oxide scale is generated when molten aluminum is poured into molds on the casting line. Aluminum, in its high-temperature liquid state, readily reacts with oxygen in the air to form a thin film of aluminum oxide, i.e., oxide scale. This phenomenon is mainly affected by the temperature of the molten aluminum, the exposure time, and the condition of the mold. The higher the temperature, the more intense the oxidation reaction, and the greater the amount of oxide scale formed. Prolonged contact time between the molten aluminum and air during transfer and pouring also exacerbates oxide scale formation. Furthermore, the presence of moisture or impurities on the mold surface further promotes the oxidation reaction and leads to oxide scale inclusions. This oxide scale not only affects the surface finish of the aluminum ingot but, if pressed into the interior, may also reduce the material's mechanical properties.

[0003] The authorization announcement number CN222607950U discloses an aluminum alloy ingot casting device. According to its instruction manual and drawings, the scheme involves the rounded corners and rolling balls at the bottom of the auxiliary plate contacting the top of the mold box, thereby being squeezed and entering the receiving groove, realizing the function of shrinking the auxiliary plate, and then allowing the auxiliary plate to work with the scraper to scrape off the oxide scale on the surface of the molten aluminum in the mold box.

[0004] However, the solution has certain limitations: 1. The structure for removing oxide scale cannot be directly applied to large-scale automated production lines, which limits its application; 2. The efficiency of removing oxide scale is relatively low, causing inconvenience in the production process. Summary of the Invention

[0005] This invention addresses the problem of removing oxide scale during the production of aluminum ingots by providing an automatic device for cleaning oxide scale from the surface of molten aluminum. During the solidification of aluminum ingots on the casting line, the device utilizes the cooperation between an industrial robot and a gripper mechanism to automatically scoop up the oxide scale from inside the casting mold and place it in an oxide scale storage box for centralized processing and collection. This device is suitable for large-scale automated production lines.

[0006] The objective of this invention is achieved through the following technical solution: an automatic device for cleaning oxide scale from the surface of molten aluminum, comprising several aluminum ingot casting lines arranged in parallel, an industrial robot positioned on one side of the aluminum ingot casting lines, several casting molds on the surface of the aluminum ingot casting lines, an aluminum liquid distributor capable of discharging molten aluminum at one end of the aluminum ingot casting lines, the bottom outlet of the aluminum liquid distributor aligned with the casting mold cavity on the surface of the aluminum ingot casting lines, the aluminum liquid distributor rotating as the casting molds of the aluminum ingot casting lines move, and a claw mechanism capable of scooping up oxide scale at the end of the industrial robot.

[0007] Preferably, a platform grid is provided between several aluminum ingot casting lines, and an oxide scale storage box is provided on the surface of the platform grid near the industrial robot. A material removal mechanism is provided on one side of the oxide scale storage box to remove the oxide scale from the gripper mechanism.

[0008] Preferably, the aluminum ingot casting line is externally supported by a support frame, and a support plate extends from the side of the support frame. The surface of the support plate is provided with a plurality of first bearing seats and second bearing seats. The first bearing seats and second bearing seats are respectively rotatably provided with a first drive shaft and a second drive shaft. One end of the first drive shaft is connected to the middle of the aluminum liquid distributor. The output end of the aluminum liquid distributor is provided with a plurality of liquid outlets. The other end of the first drive shaft is drively connected to the second drive shaft. The rotation of the second drive shaft is synchronized with the movement of the casting mold of the aluminum ingot casting line.

[0009] Preferably, the first drive shaft and the second drive shaft are connected by a chain drive, and the ends of the first drive shaft and the second drive shaft are also covered with protective covers. This is to prevent the residue of molten aluminum from affecting the chain drive between the first drive shaft and the second drive shaft.

[0010] Preferably, the gripper mechanism includes a flange connecting column, a gripper plate, and a scraper plate. One end of the flange connecting column is connected to the end of the industrial robot, and the other end of the flange connecting column is provided with a gripper plate. The surface of the gripper plate is provided with several scrapers.

[0011] Preferably, the scraper has an L-shaped cross-section, and the end of the scraper is provided with several first clearance grooves that allow molten aluminum to pass through. This arrangement is to enable the scraper to effectively remove the oxide scale from the mold.

[0012] Preferably, the material feeding mechanism includes an aluminum tapping mechanism base, a third bearing seat, a support shaft, a rocker arm, a drive element, and a tapping plate. The aluminum tapping mechanism base is provided on one side of the oxide scale storage box. The top of the aluminum tapping mechanism base is provided with several third bearing seats. The support shaft is rotatably provided inside the third bearing seats. The surface of the support shaft is provided with a rocker arm. One end of the rocker arm is provided with a tapping plate. The surface of the tapping plate is provided with several second clearance grooves to avoid scrapers. The middle part of the aluminum tapping mechanism base is also provided with a drive element to drive the rocker arm to rotate.

[0013] Preferably, the base of the aluminum knocking mechanism is provided with a single ear ring seat in the middle, and the driving element is a cylinder. The piston rod end of the cylinder is hinged to the end of the rocker arm, and the cylinder body end is hinged to the inside of the single ear ring seat. This arrangement is to enable the driving element to drive the rocker arm to rotate.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. During the solidification process of molten aluminum in the mold cavity of the aluminum ingot casting line, the cooperation between industrial robots and gripper mechanisms enables the gripper mechanism to automatically pick up the oxide scale on the surface of the molten aluminum in the mold and place it in the interior of the oxide scale storage box for centralized processing and collection. This method is suitable for large-scale automated production lines.

[0016] 2. The rocker arm in the feeding mechanism can drive the knocking plate to push the oxide scale on the surface of the scraper to fall into the interior of the oxide scale storage box during rotation, so that the scraper can pick up the oxide scale again. In large-scale production, the claw mechanism can continuously pick up the oxide scale, which brings convenience to the production process. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present utility model;

[0018] Figure 2 This is a partial perspective view of the present invention;

[0019] Figure 3 For the present utility model in Figure 2 Enlarged view of region A in the image;

[0020] Figure 4 This is a perspective view of the claw mechanism of this utility model;

[0021] Figure 5 This is a perspective view of the material feeding mechanism of this utility model.

[0022] The diagram is labeled as follows: 1. Aluminum ingot casting line; 11. Support frame; 12. Support plate; 13. First bearing seat; 14. Second bearing seat; 15. First drive shaft; 16. Second drive shaft; 2. Industrial robot; 3. Casting mold; 4. Aluminum liquid distributor; 5. Claw mechanism; 51. Flange connecting column; 52. Grab plate; 53. Scraper; 54. First clearance groove; 6. Platform grid; 7. Oxide scale storage box; 8. Material feeding mechanism; 81. Aluminum knocking mechanism base; 82. Third bearing seat; 84. Rocker arm; 85. Knocking plate; 86. Drive element; 851. Second clearance groove; 87. Single ear ring seat. Detailed Implementation

[0023] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings:

[0024] like Figure 1 and Figure 2As shown, an automatic device for cleaning oxide scale from the surface of molten aluminum includes several aluminum ingot casting lines 1 arranged side by side, an industrial robot 2 positioned on one side of each casting line 1, several casting molds 3 on the surface of each casting line 1, and an aluminum liquid distributor 4 at one end of each casting line 1 capable of discharging molten aluminum. The bottom outlet of the aluminum liquid distributor 4 is aligned with the cavity of the casting mold 3 on the surface of the casting line 1, and the aluminum liquid distributor 4 rotates as the casting molds 3 of the casting line 1 move.

[0025] Several molds 3 on the surface of the aluminum ingot casting line 1 are in a continuously moving conveying state. The end of the industrial robot 2 continuously adjusts its position as the molds 3 change position. The output end of the aluminum liquid distributor 4 is equipped with several outlets. When the aluminum liquid distributor 4 is rotating, these outlets can continuously input aluminum liquid into the cavity of the molds 3 on the surface of the aluminum ingot casting line 1. The rotation angle of the aluminum liquid distributor 4 by one outlet corresponds exactly to the moving position of two molds, and just fills one mold 3. The aluminum liquid poured into the mold 3 reacts readily with oxygen in the air to form an aluminum oxide film, i.e., oxide scale.

[0026] Please continue to refer to this. Figure 2 and Figure 3 The aluminum ingot casting line 1 is externally supported by a support frame 11. A support plate 12 extends from the side of the support frame 11. The surface of the support plate 12 is provided with several first bearing seats 13 and second bearing seats 14. Inside the first bearing seats 13 and second bearing seats 14, a first drive shaft 15 and a second drive shaft 16 are respectively rotatably mounted. One end of the first drive shaft 15 is connected to the middle of the aluminum liquid distributor 4, and the other end of the first drive shaft 15 is drive-connected to the second drive shaft 16. The rotation of the second drive shaft 16 is synchronized with the movement of the casting mold 3 of the aluminum ingot casting line 1. The first drive shaft 15 and the second drive shaft 16 are connected by a chain drive. Protective covers 9 are also provided at the ends of the first drive shaft 15 and the second drive shaft 16.

[0027] The second drive shaft 16 is also connected to the drive motor or roller inside the aluminum ingot casting line 1 via chain drive. This connection enables the conveying speed of the aluminum ingot casting line 1 to be the same as the rotation speed of the second drive shaft 16. The rotation speed of the second drive shaft 16 can affect the rotation speed of the aluminum liquid distributor 4 at the end of the first drive shaft 15, ultimately achieving a coordinated state between the rotation speed of the aluminum liquid distributor 4 and the aluminum ingot casting line 1.

[0028] Please refer to Figure 2 and Figure 4The industrial robot 2 has a gripper mechanism 5 at its end capable of picking up oxide scale. The gripper mechanism 5 includes a flange connecting column 51, a gripping plate 52, and a scraper 53. One end of the flange connecting column 51 is connected to the end of the industrial robot 2, and the other end of the flange connecting column 51 is provided with the gripping plate 52. The surface of the gripping plate 52 is provided with several scrapers 53. The scraper 53 has an L-shaped cross-section, and the end of the scraper 53 is provided with several first clearance grooves 54 that allow molten aluminum to pass through.

[0029] During the positioning process, the end of industrial robot 2 simultaneously moves the flange connecting column 51 and the gripping plate 52 and scraper 53 connected to its end. During the scale removal process, industrial robot 2 controls the end of scraper 53 to be perpendicular to the inside of the groove in mold 3, then controls scraper 53 to move downwards until it penetrates into the groove. Next, the angle of scraper 53 is adjusted to tilt upwards, causing the scale to be caught on the surface of scraper 53. Then, several scrapers 53, like four fingers, scoop up the scale.

[0030] Platform grid 6 is provided between several aluminum ingot casting lines 1. An oxide scale storage box 7 is provided on the surface of the platform grid 6 near the industrial robot 2. A material removal mechanism 8 is provided on one side of the oxide scale storage box 7 to remove the oxide scale from the gripper mechanism 5.

[0031] Please continue to refer to this. Figure 5 The material feeding mechanism 8 includes an aluminum knocking mechanism base 81, a third bearing seat 82, a support shaft 83, a rocker arm 84, a driving element 86, and a knocking plate 85. The aluminum knocking mechanism base 81 is provided on one side of the oxide scale storage box 7. The top of the aluminum knocking mechanism base 81 is provided with several third bearing seats 82. The support shaft 83 is rotatably provided inside the third bearing seat 82. The surface of the support shaft 83 is provided with a rocker arm 84. One end of the rocker arm 84 is provided with a knocking plate 85. The surface of the knocking plate 85 is provided with several second clearance grooves 851 for avoiding scrapers 53. The middle part of the aluminum knocking mechanism base 81 is also provided with a driving element 86 for driving the rocker arm 84 to rotate.

[0032] In this embodiment, in order to further realize the control of the rocker arm 84 by the driving element 86, a single ear ring seat 87 is provided in the middle of the aluminum knocking mechanism base 81. The driving element 86 is a cylinder, the piston rod end of the cylinder is hinged to the end of the rocker arm 84, and the cylinder body end is hinged to the inside of the single ear ring seat 87.

[0033] With this setup, the scraper 53 carrying oxide scale moves to a designated position inside the oxide scale storage box 7 under the drive of the industrial robot 2. Then, the piston rod of the drive element 86 extends and drives the rocker arm 84 to rotate. During rotation, the rocker arm 84 drives the knocking plate 85 to pry off the oxide scale from the surface of the scraper 53. The supporting shaft 83 provides support and guidance during the rotation of the rocker arm 84.

[0034] During the process of removing oxide scale, the design of the second clearance groove 851 ensures that there is no interference between the tapping plate 85 and the scraper 53.

[0035] Working principle and usage of this utility model:

[0036] Several molds 3 on the surface of the aluminum ingot casting line 1 are in a continuous forward-moving conveying state. The end of the industrial robot 2 continuously adjusts its position as the position of the molds 3 changes. The output end of the aluminum liquid distributor 4 is provided with several outlets. The conveying speed of the aluminum ingot casting line 1 is the same as the rotation speed of the second drive shaft 16. The rotation speed of the second drive shaft 16 can affect the rotation speed of the aluminum liquid distributor 4 at the end of the first drive shaft 15, ultimately achieving a coordinated state between the rotation speed of the aluminum liquid distributor 4 and the aluminum ingot casting line 1.

[0037] When the aluminum liquid distributor 4 is rotating, the bottom outlet continuously pours molten aluminum into the cavity of the mold 3 on the surface of the aluminum ingot casting line 1. Other outlets only release molten aluminum into the next mold 3 cavity when the height of the molten aluminum in the distributor 4 matches the height of the outlet. The molten aluminum stops flowing from the previous outlet once it reaches a height higher than the molten aluminum in the distributor 4, at which point the previous mold 3 is filled. The molten aluminum poured into the mold 3 cavity readily reacts with oxygen in the air to form a thin film of aluminum oxide, i.e., oxide scale.

[0038] Next, when the end of the industrial robot 2 is adjusted, it simultaneously moves the flange connecting column 51 and the gripping plate 52 and scraper 53 connected to the end of the flange connecting column 51. During the process of removing oxide scale, the industrial robot 2 controls the end of the scraper 53 to be perpendicular to the inside of the groove of the mold 3, and then controls the scraper 53 to move downwards until it extends into the groove of the mold 3. Then, the angle of the scraper 53 is adjusted to tilt upwards, so that the oxide scale is stuck on the surface of the scraper 53. Then, several scrapers 53, like four fingers, pick up the oxide scale.

[0039] After the scraper 53 carrying oxide scale moves to the designated position inside the oxide scale storage box 7 driven by the industrial robot 2, the piston rod of the drive element 86 extends and drives the rocker arm 84 to start rotating. During the rotation, the rocker arm 84 can drive the knocking plate 85 to pry off the oxide scale on the surface of the scraper 53.

[0040] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. An apparatus for automatically cleaning the surface of an aluminum ingot of an oxide skin, comprising a plurality of aluminum ingot casting lines (1) arranged side by side, an industrial robot (2) arranged on one side of the aluminum ingot casting lines (1), characterized in that, The surface of the aluminum ingot casting line (1) is provided with several molds (3). One end of the aluminum ingot casting line (1) is provided with an aluminum liquid distributor (4) that can discharge molten aluminum. The bottom outlet of the aluminum liquid distributor (4) is aligned with the cavity of the mold (3) on the surface of the aluminum ingot casting line (1). The aluminum liquid distributor (4) rotates as the mold (3) of the aluminum ingot casting line (1) moves. The end of the industrial robot (2) is provided with a claw mechanism (5) that can pick up oxide scale.

2. The equipment for automatically cleaning oxide scale from the surface of molten aluminum according to claim 1, characterized in that, Platform grids (6) are provided between several aluminum ingot casting lines (1). An oxide scale storage box (7) is provided on the surface of the platform grids (6) near the industrial robot (2). A material removal mechanism (8) is provided on one side of the oxide scale storage box (7) to remove the oxide scale from the gripper mechanism (5).

3. The equipment for automatically cleaning oxide scale from the surface of molten aluminum according to claim 2, characterized in that, The aluminum ingot casting line (1) is supported by a support frame (11), and a support plate (12) extends from the side of the support frame (11). The surface of the support plate (12) is provided with a plurality of first bearing seats (13) and second bearing seats (14). The first bearing seats (13) and second bearing seats (14) are respectively provided with a first drive shaft (15) and a second drive shaft (16) that can rotate inside. One end of the first drive shaft (15) is connected to the middle of the aluminum liquid distributor (4). The output end of the aluminum liquid distributor (4) is provided with a plurality of liquid outlets. The other end of the first drive shaft (15) is connected to the second drive shaft (16). The rotation of the second drive shaft (16) is due to the movement of the mold (3) of the aluminum ingot casting line (1).

4. The equipment for automatically cleaning oxide scale from the surface of molten aluminum according to claim 3, characterized in that, The first drive shaft (15) and the second drive shaft (16) are connected by a chain drive, and the ends of the first drive shaft (15) and the second drive shaft (16) are also covered with protective covers (9).

5. The equipment for automatically cleaning oxide scale from the surface of molten aluminum according to claim 2, characterized in that, The gripper mechanism (5) includes a flange connecting column (51), a gripper plate (52) and a scraper plate (53). One end of the flange connecting column (51) is connected to the end of the industrial robot (2), and the other end of the flange connecting column (51) is provided with a gripper plate (52). The surface of the gripper plate (52) is provided with several scrapers (53).

6. The equipment for automatically cleaning oxide scale from the surface of molten aluminum according to claim 5, characterized in that, The scraper (53) has an L-shaped cross-section, and the end of the scraper (53) is provided with several first clearance grooves (54) that allow molten aluminum to pass through.

7. The equipment for automatically cleaning oxide scale from the surface of molten aluminum according to claim 5, characterized in that, The material feeding mechanism (8) includes an aluminum knocking mechanism base (81), a third bearing seat (82), a support shaft (83), a rocker arm (84), a driving element (86), and a knocking plate (85). The aluminum knocking mechanism base (81) is provided on one side of the oxide scale storage box (7). Several third bearing seats (82) are provided on the top of the aluminum knocking mechanism base (81). The support shaft (83) is rotatably provided inside the third bearing seat (82). The rocker arm (84) is provided on the surface of the support shaft (83). A knocking plate (85) is provided at one end of the rocker arm (84). The knocking plate (85) is provided on the surface of several second clearance grooves (851) for clearance scrapers (53). The driving element (86) for driving the rocker arm (84) to rotate is also provided in the middle of the aluminum knocking mechanism base (81).

8. The equipment for automatically cleaning oxide scale from the surface of molten aluminum according to claim 7, characterized in that, The base (81) of the aluminum knocking mechanism is provided with a single ear ring seat (87) in the middle. The driving element (86) is a cylinder. The piston rod end of the cylinder is hinged to the end of the rocker arm (84), and the cylinder body end is hinged to the inside of the single ear ring seat (87).

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