Automatic flow control device for aluminum and aluminum alloy wheel belt casting

Abstract

The invention relates to a casting technology, and provides an aluminum and aluminum alloy wheel belt casting automatic flow control device which comprises a chute, a flow guide pipe communicated with the lower end of the chute, a casting ladle arranged below the chute, a sleeve vertically arranged in the chute, a support used for supporting the sleeve, a stopper rod arranged in the sleeve and a first driving device used for driving the stopper rod to rotate. The second driving device is used for driving the stopper rod to ascend and descend; the first distance measuring instrument is arranged on the bracket; the first range finder is arranged right above the chute and is vertically arranged downwards, and the lower end of the stopper rod is arranged close to the upper end of the flow guide pipe. According to the automatic flow control device for aluminum and aluminum alloy wheel belt casting, the flow of liquid during casting can be efficiently and automatically adjusted, and manual intervention can be remarkably reduced.

Description

Technical Field

[0001] The invention relates to the technical field of casting technology, and in particular to an automatic flow control device for casting aluminum and aluminum alloy wheel bands. Background Art

[0002] At present, aluminum and aluminum alloy wheel rim casting is mainly used to produce aluminum and aluminum alloy rods and ingots, and aluminum and aluminum alloy rods are widely used in relatively high-end industries such as wire and cable rolling, condenser extrusion, and aluminum welding wire rolling. The quality requirements of aluminum and aluminum alloy rods produced by wheel rim casting are relatively high, so the produced rods should try to avoid quality defects such as slag inclusions, pores and hollowness.

[0003] To reduce slag inclusions and pores in the rod material, it is necessary to ensure that the aluminum liquid level and flow rate in the casting wheel are stable during casting, to avoid liquid level fluctuations that damage the surface oxide film, causing hydrogen absorption and increase in gas content in the aluminum liquid, and forming bubbles and hollows during rolling. Avoid casting flow rate fluctuations that involve the oxide film and form slag inclusions during rolling.

[0004] At present, there are two main flow control methods for tyre casting ladles used by aluminum enterprises to produce aluminum and aluminum alloy rods: one is the vertical pipe and float control method. A ceramic vertical tube is buried in the chute at a higher position, and a grooved float is placed just below the ceramic vertical tube in the ladle at a lower position. This method controls the casting liquid level of the ladle by adjusting the flow rate of aluminum liquid in the vertical tube by changing the distance between the vertical tube and the float. Although the method is simple and convenient to operate, the scouring of aluminum liquid between the vertical tube and the float is increased, and the tumbling of aluminum liquid causes the oxide film in the ladle to be destroyed and slag is easily formed between the vertical tube and the float. The casting of impurities and gases will form more pores and slag inclusions, which affect the product quality. The second is the balance flow control method. Although this method can avoid the tumbling of aluminum liquid in the ladle during casting by burying the balance plugging cap and the lower end flow outlet of the chute vertical tube under the liquid level of aluminum liquid in the ladle and ensure product quality, the operator needs to adjust the position of the flow control balance counterweight at any time according to the height of the ladle liquid level during the entire casting process, adjust the gap between the plugging cap and the vertical tube, and control the flow rate of aluminum liquid in the vertical tube. The personnel are basically unable to leave the casting position, the labor intensity of the operators is relatively high, and the operating skills required are relatively high. Moreover, since the end of the flow-control balance plugging cap is immersed in the scouring of the ladle aluminum liquid during the production process, the end of the balance plugging cap is easy to break. Once the balance breaks, if the operator does not handle it in time and the emergency response is improper, it is easy to cause a large amount of aluminum liquid in the chute to leak into the casting pit. Production safety accidents.

[0005] Therefore, it is necessary to design a more efficient and automated flow control device. Summary of the invention

[0006] The object of the present invention is to provide an automatic flow control device for casting aluminum and aluminum alloy wheel bands, which can efficiently and automatically adjust the flow rate of liquid during casting and can significantly reduce manual intervention.

[0007] The present invention is achieved through the following technical scheme: the automatic flow control device for casting aluminum and aluminum alloy wheel belts of the present invention comprises a chute, a guide pipe connected to the lower end of the chute, a ladle arranged below the chute, a sleeve vertically arranged in the chute, a bracket for supporting the sleeve, a stopper rod arranged in the sleeve, a first driving device for driving the stopper rod to rotate, a second driving device for driving the stopper rod to rise and fall, and a first rangefinder arranged on the bracket; the first rangefinder is arranged directly above the chute and vertically downward, and the lower end of the stopper rod is arranged close to the upper end of the guide pipe.

[0008] Furthermore, a sleeve is slidably provided outside the casing, and a horizontally arranged floating plate is connected to the outer wall of the sleeve, and the density of the floating plate is lower than the density of the aluminum liquid in the chute; the first rangefinder is arranged toward the floating plate.

[0009] Furthermore, the bracket includes a vertically arranged column and a horizontally arranged support plate connected to the upper end of the column; the first rangefinder is arranged on the support plate, and the upper end of the sleeve is connected to the support plate.

[0010] Furthermore, the second driving device includes an inverted U-shaped support frame arranged on the support plate, a rotating shaft horizontally arranged on the support frame, a driving plate horizontally arranged on the rotating shaft, a semicircular slot arranged on the lower side of the driving plate, and a first electric push rod vertically arranged on the column; the rotating shaft is rotatably arranged in the slot, the upper end of the plug rod is connected to one end of the driving plate by a first connecting rope, and the upper end of the first electric push rod is connected to the other end of the driving plate by a second connecting rope.

[0011] Furthermore, a second vertically arranged electric push rod is connected to the lower side of the rotating shaft; and the lower end of the second electric push rod is connected to the supporting frame.

[0012] Furthermore, a plurality of the card slots are provided on the lower side of the driving plate, and the plurality of the card slots are distributed along the length direction of the driving plate; a plurality of second electric push rods are provided on the supporting frame, and a rotating shaft is provided at the telescopic end of each of the second electric push rods, and the rotating shaft corresponds one-to-one to the card slots.

[0013] Furthermore, the floating plate is provided with a plurality of through holes, and the supporting plate is provided with a second rangefinder which is vertically and downwardly arranged, and the second rangefinder is arranged toward the through holes.

[0014] Further, the first driving device includes a driving shaft arranged vertically on the upper end of the stopper rod, a shell covering the upper end of the driving shaft, a driven gear arranged on the upper end of the driving shaft, a driving gear meshing with the driven gear, and a motor connected to the driving gear; the driving shaft is rotatably connected to the shell, and the driving gear, the driven gear, and the motor are all arranged in the shell; one end of the first connecting rope away from the driving plate is connected to the outer wall of the shell; the driving plate and the shell are connected by a plurality of the first connecting ropes.

[0015] The technical solution of the present invention has at least the following advantages and beneficial effects: the automatic flow control device for casting aluminum and aluminum alloy wheel bands of the present invention, when in use, first adds molten aluminum liquid into the chute, and then guides the aluminum liquid in the chute into the ladle for casting through the liquid guide pipe. During the casting process, the height of the aluminum liquid level in the chute can be measured in real time by the first rangefinder. When it is detected that the aluminum liquid level becomes higher, the stopper rod can be driven to rise by the second driving device, thereby increasing the gap between the stopper rod and the guide pipe, so that the flow of aluminum liquid entering the guide pipe becomes larger, thereby improving the discharge rate of aluminum liquid, and vice versa. The first driving device drives the stopper plate to rotate continuously or intermittently, which can avoid the aluminum slag from adhering to the stopper rod and the guide pipe and the aluminum liquid component segregation. In this way, by detecting the aluminum liquid level in real time and automatically adjusting the height of the stopper rod, the amount of aluminum liquid in the chute can be efficiently and automatically regulated, so that it always fluctuates within a certain range, and the fluctuation of the aluminum liquid level can be effectively reduced, and the casting quality can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 A schematic diagram of the structure of the automatic flow control device for casting aluminum and aluminum alloy wheel belts provided by an embodiment of the present invention when in use;

[0018] Figure 2 A schematic diagram of the internal structure of the automatic flow control device for casting aluminum and aluminum alloy wheels provided by an embodiment of the present invention when in use;

[0019] Figure 3 A schematic structural diagram of an automatic flow control device for casting aluminum and aluminum alloy wheel belts from one perspective provided by an embodiment of the present invention;

[0020] Figure 4A schematic structural diagram of two perspectives of an automatic flow control device for casting aluminum and aluminum alloy wheel bands provided in an embodiment of the present invention.

[0021] Icons: 11-chute, 12-guide pipe, 13-ladle, 21-stopper rod, 22-casing, 23-sleeve, 24-floating plate, 25-through hole, 26-driving shaft, 31-support plate, 32-pillar, 33-first rangefinder, 34-second rangefinder, 35-support frame, 40-first driving device, 41-driving plate, 42-first connecting rope, 43-second connecting rope, 44-slot, 45-rotating shaft, 46-second electric push rod, 47-first electric push rod, 50-second driving device, 51-housing, 52-driven gear, 53-driving gear, 54-motor. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0025] In the description of the present invention, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is usually placed when used. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Example

[0028] The following is further described in conjunction with specific embodiments. Figure 1 -Attached Figure 4 As shown, the automatic flow control device for casting aluminum and aluminum alloy wheel belts of this embodiment includes a chute 11, a guide pipe 12 connected to the lower end of the chute 11, a ladle 13 arranged below the chute 11, a sleeve 22 vertically arranged in the chute 11, a bracket for supporting the sleeve 22, a stopper rod 21 arranged in the sleeve 22, a first driving device 40 for driving the stopper rod 21 to rotate, a second driving device 50 for driving the stopper rod 21 to rise and fall, and a first rangefinder 33 arranged on the bracket; the first rangefinder 33 is arranged directly above the chute 11 and vertically downward, and the lower end of the stopper rod 21 is arranged close to the upper end of the guide pipe 12. Specifically, when in use, the molten aluminum liquid is first added to the chute 11, and then the aluminum liquid in the chute 11 is introduced into the ladle 13 through the liquid guide tube for casting. During the casting process, the height of the aluminum liquid level in the chute 11 can be measured in real time by the first rangefinder 33. When it is detected that the aluminum liquid level becomes higher, the stopper rod 21 can be driven to rise by the second driving device 50, thereby increasing the gap between the stopper rod 21 and the guide tube 12, so that the flow of aluminum liquid entering the guide tube 12 becomes larger, thereby improving the discharge rate of aluminum liquid, and vice versa. The first driving device 40 drives the stopper plate to rotate continuously or intermittently, which can avoid aluminum slag adhesion between the stopper rod 21 and the guide tube 12 and aluminum liquid component segregation. In this way, by detecting the aluminum liquid level in real time and automatically adjusting the height of the stopper rod 21, the amount of aluminum liquid in the chute 11 can be efficiently and automatically regulated, so that it always fluctuates within a certain range, which can effectively reduce the fluctuation of the aluminum liquid level and improve the casting quality.

[0029] In this embodiment, a sleeve 23 is slidably provided outside the sleeve 22, and a horizontally arranged floating plate 24 is connected to the outer wall of the sleeve 23, and the density of the floating plate 24 is less than the density of the aluminum liquid in the chute 11; the first rangefinder 33 is arranged toward the floating plate 24. Specifically, since the stopper rod 21 will rotate intermittently or continuously, and move in the vertical direction according to the amount of aluminum liquid, a sleeve 22 and a sleeve 23 are arranged outside the stopper rod 21, wherein the sleeve 23 will rise and fall synchronously with the rise and fall of the aluminum liquid level due to the action of the floating plate 24, so there is basically no relative movement between the floating plate 24, the sleeve 23 and the aluminum liquid, which can effectively reduce the disturbance of the aluminum liquid caused by the operation of the device, and the movement of the stopper rod 21 will only affect the aluminum liquid at the lower end of the stopper rod 21, so the rotation of the stopper rod 21 will not cause excessive agitation to the aluminum liquid. Moreover, the floating plate 24 can be kept horizontal well under the action of the sleeve 23, so the first distance meter 33 is used to measure the distance of the floating plate 24, so that the change of the aluminum liquid level can be measured more accurately. Moreover, the floating plate 24 can also suppress the aluminum liquid level to a certain extent to avoid disturbance.

[0030] The bracket in this embodiment includes a vertically arranged column and a horizontally arranged support plate 31 connected to the upper end of the column; the first rangefinder 33 is arranged on the support plate 31 , and the upper end of the sleeve 22 is connected to the support plate 31 .

[0031] The second driving device 50 in this embodiment includes an inverted U-shaped support frame 35 arranged on the support plate 31, a rotating shaft 45 horizontally arranged on the support frame 35, a driving plate 41 horizontally arranged on the rotating shaft 45, a semicircular clamping groove 44 arranged on the lower side of the driving plate 41, and a first electric push rod 47 vertically arranged on the column; the rotating shaft 45 is rotatably arranged in the clamping groove 44, the upper end of the stopper rod 21 is connected to one end of the driving plate 41 by a first connecting rope 42, and the upper end of the first electric push rod 47 is connected to the other end of the driving plate 41 by a second connecting rope 43. Specifically, the driving plate 41 functions as a seesaw with the rotating shaft 45 as a fulcrum. The first electric push rod 47 pushes the second connecting rope 43 to pull the driving plate 41, so that the other end of the driving plate 41 rises, and the stopper rod 21 is pulled up through the first connecting rope 42 (the first electric push rod 47 pushes upward, and the stopper rod 21 will move upward under its own gravity). The first connecting rope 42 and the second connecting rope 43 are connected to make the two ends of the driving plate 41 softly connected with the stopper rod 21 and the first electric push rod 47 respectively (the soft connection is similar to a hinge, which has a higher fault tolerance and is less prone to failure). The first connecting rope 42 and the second connecting rope 43 are always in a tensioned state.

[0032] In this embodiment, a second electric push rod 46 is vertically connected to the lower side of the rotating shaft 45, and the lower end of the second electric push rod 46 is connected to the support frame 35. Specifically, by pushing or pulling the rotating shaft 45 by the second electric push rod 46, the stopper rod 21 can be quickly raised or lowered, so that a quick response can be made in an emergency.

[0033] In this embodiment, a plurality of slots 44 are provided on the lower side of the driving plate 41 , and the plurality of slots 44 are distributed along the length direction of the driving plate 41 ; a plurality of second electric push rods 46 are provided on the support frame 35 , and a rotating shaft 45 is provided at the telescopic end of each second electric push rod 46 , and the rotating shaft 45 corresponds one-to-one to the slots 44 . Specifically, multiple slots 44 and multiple rotating shafts 45 are provided in order to more accurately adjust the height of the stopper rod 21. For example, when the middle second electric push rod 46 pushes the rotating shaft 45 to snap into the slot 44 in the middle of the driving plate 41, the first electric push rod 47 moves upward (or downward) by a distance L, and the stopper rod 21 moves downward (or upward) by a distance L; when the second electric push rod 46 close to one end of the stopper rod 21 pushes the rotating shaft 45 into the corresponding slot 44, the first electric push rod 47 moves upward (or downward) by a distance L, and the distance that the stopper rod 21 moves downward (or upward) will be significantly less than L, and vice versa. During operation, only one rotating shaft 45 will be located in the slot 44, so that the height of the stopper rod 21 can be adjusted more accurately or more quickly.

[0034] In this embodiment, the floating plate 24 is provided with a plurality of through holes 25, and the support plate 31 is provided with a second rangefinder 34 which is vertically and downwardly arranged, and the second rangefinder 34 is arranged toward the through holes 25. Specifically, when the flow rate of the aluminum liquid flowing into the chute 11 suddenly increases, the floating plate 24 may not have time to react, and the aluminum liquid will overflow from the edge of the floating plate 24 and the through holes 25 onto the floating plate 24. At this time, the height of the aluminum liquid itself can be detected in real time by the second rangefinder 34. When a sudden increase is detected, the height of the stopper rod 21 can be quickly increased (specifically, the strategy that can be implemented is to directly push the driving plate 41 upwards through the second electric push rod 46), or other corresponding measures can be taken. The first rangefinder 33 and the second rangefinder 34 are both laser rangefinders.

[0035] The first driving device 40 in this embodiment includes a driving shaft 26 arranged vertically on the upper end of the stopper rod 21, a housing 51 covered on the upper end of the driving shaft 26, a driven gear 52 arranged on the upper end of the driving shaft 26, a driving gear 53 meshing with the driven gear 52, and a motor 54 connected to the driving gear 53; the driving shaft 26 is rotatably connected to the housing 51, and the driving gear 53, the driven gear 52, and the motor 54 are all arranged in the housing 51; the end of the first connecting rope 42 away from the driving plate 41 is connected to the outer wall of the housing 51; the driving plate 41 and the housing 51 are connected by a plurality of first connecting ropes 42. Specifically, the motor 54 drives the driven gear 52 to rotate through the driving gear 53, thereby driving the driving shaft 26 and the stopper rod 21 to rotate intermittently or continuously, wherein the length of the first connecting rope 42 is relatively short, and the end of the driving plate 41 is arranged close to the housing 51, so that the first connecting rope 42 can be prevented from being entangled due to self-rotation when the driving shaft 26 and the stopper rod 21 rotate.

[0036] In summary, the automatic flow control device for casting aluminum and aluminum alloy wheels of this embodiment, when in use, first adds molten aluminum liquid into the chute 11, and then guides the aluminum liquid in the chute 11 into the ladle 13 for casting through the liquid guide tube. During the casting process, the height of the aluminum liquid level in the chute 11 can be measured in real time by the first rangefinder 33. When it is detected that the aluminum liquid level becomes higher, the stopper rod 21 can be driven to rise by the second driving device 50, thereby increasing the gap between the stopper rod 21 and the guide tube 12, so that the flow rate of aluminum liquid entering the guide tube 12 becomes larger, thereby improving the discharge rate of aluminum liquid, and vice versa. The first driving device 40 drives the stopper plate to rotate continuously or intermittently, which can avoid the adhesion of aluminum slag between the stopper rod 21 and the guide tube 12 and the segregation of aluminum liquid components. In this way, by real-time detection of the aluminum liquid level and automatic adjustment of the height of the stopper rod 21, the amount of aluminum liquid in the chute 11 can be efficiently and automatically regulated so that it always fluctuates within a certain range, which can effectively reduce the fluctuation of the aluminum liquid level and improve the casting quality.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic flow control device for aluminum and aluminum alloy wheel casting, characterized in that: The invention comprises a chute (11), a guide pipe (12) connected to the lower end of the chute (11), a ladle (13) arranged below the chute (11), a sleeve (22) vertically arranged in the chute (11), a bracket for supporting the sleeve (22), a stopper rod (21) arranged in the sleeve (22), a first driving device (40) for driving the stopper rod (21) to rotate, a second driving device (50) for driving the stopper rod (21) to rise and fall, and a first distance meter (33) arranged on the bracket; The first distance meter (33) is arranged directly above the chute (11) and vertically downward, and the lower end of the stopper rod (21) is arranged close to the upper end of the guide tube (12).

2. The automatic flow control device for aluminum and aluminum alloy wheel casting according to claim 1 is characterized in that: A sleeve (23) is slidably disposed outside the sleeve (22); the outer wall of the sleeve (23) is connected to a horizontally disposed floating plate (24); the density of the floating plate (24) is less than the density of the aluminum liquid in the chute (11); and the first rangefinder (33) is disposed toward the floating plate (24).

3. The automatic flow control device for aluminum and aluminum alloy wheel casting according to claim 2 is characterized in that: The bracket comprises a vertically arranged column and a horizontally arranged support plate (31) connected to the upper end of the column; the first rangefinder (33) is arranged on the support plate (31), and the upper end of the sleeve (22) is connected to the support plate (31).

4. The automatic flow control device for aluminum and aluminum alloy wheel casting according to claim 3 is characterized in that: The second driving device (50) comprises an inverted U-shaped support frame (35) arranged on the support plate (31), a rotating shaft (45) arranged horizontally on the support frame (35), a driving plate (41) arranged horizontally on the rotating shaft (45), a semicircular clamping groove (44) arranged on the lower side of the driving plate (41), and a first electric push rod (47) arranged vertically on the column; The rotating shaft (45) is rotatably disposed in the clamping groove (44), the upper end of the plug rod (21) is connected to one end of the driving plate (41) via a first connecting rope (42), and the upper end of the first electric push rod (47) is connected to the other end of the driving plate (41) via a second connecting rope (43).

5. The automatic flow control device for aluminum and aluminum alloy wheel casting according to claim 4 is characterized in that: A second electric push rod (46) arranged vertically is connected to the lower side of the rotating shaft (45); the lower end of the second electric push rod (46) is connected to the supporting frame (35).

6. The automatic flow control device for aluminum and aluminum alloy wheel casting according to claim 5 is characterized in that: A plurality of the card slots (44) are provided on the lower side of the driving plate (41), and the plurality of the card slots (44) are distributed along the length direction of the driving plate (41); The support frame (35) is provided with a plurality of second electric push rods (46), and a rotating shaft (45) is provided at the telescopic end of each second electric push rod (46), and the rotating shaft (45) corresponds one-to-one to the card slot (44).

7. The automatic flow control device for aluminum and aluminum alloy wheel casting according to claim 6 is characterized in that: The floating plate (24) is provided with a plurality of through holes (25), and the supporting plate (31) is provided with a second rangefinder (34) which is vertically and downwardly arranged, and the second rangefinder (34) is arranged toward the through holes (25).

8. The automatic flow control device for aluminum and aluminum alloy wheel casting according to claim 4 is characterized in that: The first driving device (40) comprises a driving shaft (26) vertically arranged at the upper end of the stopper rod (21), a housing (51) covered at the upper end of the driving shaft (26), a driven gear (52) arranged at the upper end of the driving shaft (26), a driving gear (53) meshing with the driven gear (52), and a motor (54) connected to the driving gear (53); The driving shaft (26) is rotatably connected to the housing (51), and the driving gear (53), the driven gear (52), and the motor (54) are all arranged in the housing (51); One end of the first connection rope (42) away from the driving plate (41) is connected to the outer wall of the shell (51); the driving plate (41) and the shell (51) are connected via a plurality of the first connection ropes (42).

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