A die-casting device for manufacturing small aircraft tail wing

Abstract

The present invention relates to the field of aircraft parts processing, specifically a die-casting device for manufacturing small aircraft tail wings, including a base, and also including a lifting cylinder and a frame arranged on the base, a conveyor belt is arranged on the frame, a plurality of mold assemblies are arranged on the conveyor belt, a lifting plate is fixed to the upper end of the piston rod of the lifting cylinder, a cooling mechanism and a filling pipe are arranged on the lifting plate, the lifting plate drives the conveyor belt to shift the mold assembly, and a mold opening and closing mechanism and a demolding mechanism are arranged on the mold assembly. This die-casting device for manufacturing small aircraft tail wings can realize automatic mold closing, molten metal filling, cooling, mold separation and demolding, greatly improves production efficiency, saves working space, does not require manual operation, saves time and effort, is safe and reliable, uses a cooling mechanism to cool the die-cast product and uses the heat conducted by the die-cast product to preheat the next mold assembly to be filled with molten metal, which helps to improve the quality of die-cast products on the one hand, and utilizes waste heat on the other hand, saves energy and reduces emissions.

Description

Technical Field

[0001] The invention relates to the field of aircraft parts processing, in particular to a die-casting device used for manufacturing a small aircraft tail wing. Background Art

[0002] In the process of batch die-casting production of the tail wing parts of small aircraft, workers need to close the mold, add solution, open the mold and other operations many times, which is very laborious and time-consuming, and it is exposed to high temperature and is highly dangerous. Since the casting needs to be cooled, it is not only necessary to transfer the mold to cool it, but also time-consuming, labor intensity is increased and production efficiency is reduced. In view of this, we propose a die-casting device for the manufacture of small aircraft tail wing. Summary of the invention

[0003] The purpose of the present invention is to provide a die-casting device for manufacturing a small aircraft tail wing, so as to solve the problems raised in the above background technology. To achieve the above purpose, the present invention provides the following technical solutions: a die-casting device for manufacturing a small aircraft tail wing, comprising a base, a lifting cylinder and a frame arranged on the base, a conveyor belt arranged on the frame, a plurality of mold assemblies arranged on the conveyor belt, a lifting plate fixed to the upper end of the piston rod of the lifting cylinder, a cooling mechanism and a filling pipe arranged on the lifting plate, the lifting plate drives the conveyor belt to shift the mold assembly, and a mold opening and closing mechanism and a demolding mechanism are arranged on the mold assembly.

[0004] Preferably, both ends of the frame are connected to rollers for fixed-axis rotation, the two rollers are connected through a conveyor belt transmission, the inner rings of the two ratchets are coaxially fixedly connected to the two rollers, and both ends of the lifting plate are fixed with racks 1, and the two racks 1 are respectively meshed and connected with the outer rings of the two ratchets.

[0005] Preferably, the plurality of mold assemblies are arranged at equal intervals along the length direction of the conveyor belt, the mold assembly includes a fixed mold and a movable mold, and a fixed plate is fixed on the fixed mold, the fixed plate is fixed on the conveyor belt, and a filling port corresponding to the filling pipe is provided on the fixed mold.

[0006] Preferably, the cooling mechanism includes a fan, air pipe 1, air pipe 2 and air pipe 3 fixed on the lifting plate, and the inlet end of air pipe 1 is connected to the outlet end of the fan.

[0007] Preferably, air ducts are provided inside the fixed mold and the movable mold, and air inlets and outlets are provided at the upper ends of the fixed mold and the movable mold. The outlet end of air pipe one and the inlet end of air pipe two are respectively connected to the air inlet and outlet on the same mold assembly, and the outlet end of air pipe two and the inlet end of air pipe three are respectively connected to the air inlet and outlet on another mold assembly.

[0008] Preferably, a support plate is fixed on the frame, and one end of the support plate is an arc-shaped segment structure bent downward.

[0009] Preferably, the mold opening and closing mechanism includes a column fixed on the fixed mold, the end of the column facing away from the fixed mold is connected to the gear by a fixed axis rotation, a cantilever is fixed on the fixed mold, the cantilever is slidably connected to rack 2, and rack 2 is meshingly connected to the gear, the lower end of rack 2 is hinged to the roller, and the lower end of rack 2 is connected to the cantilever through spring 1.

[0010] Preferably, a screw rod passes through the center of the gear and is threadedly connected, the screw rod is fixedly connected to the middle of the connecting rod, the upper end of the connecting rod is fixedly connected to a sliding rod, the sliding rod passes through and is slidably connected to the fixed mold, and the end of the sliding rod away from the connecting rod is fixedly connected to the movable mold.

[0011] Preferably, the demolding mechanism includes a lever fixed on the sliding rod, a groove is opened on the inner wall of the mold cavity of the fixed mold, a push block is embedded in the groove, a push rod passes through and is slidably connected to the fixed mold, one end of the push rod passes through the inner wall of the groove and is fixedly connected to the push block, the other end of the push rod is connected to the fixed mold through spring 2, and the lever can be in buckling contact with the push rod.

[0012] Preferably, the demolding mechanism also includes a pump barrel fixed on the fixed mold, a piston plate is slidably connected inside the pump barrel, a push-pull rod is fixed to the piston plate, the end of the push-pull rod away from the piston plate is fixedly connected to the lower end of the connecting rod, and a one-way valve 1 and a one-way valve 2 are fixed and connected on the side wall of the pump barrel, the one-way valve 2 is connected to the air hole through the air pipe 4, and the air hole is opened on the movable mold and connected to the mold cavity, the conduction direction of the one-way valve 1 points to the inside of the pump barrel, and the conduction direction of the one-way valve 2 points to the air hole.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] In the present invention, the conveyor belt is driven by the rise and fall of the lifting plate to intermittently shift each mold component, and the entire device can automatically close the mold, add molten metal, cool, separate the mold and demold, which greatly improves the production efficiency, saves working space, does not require manual operation, saves time and effort, and is safe and reliable.

[0015] In the present invention, a cooling mechanism is used to cool the die-cast product and the heat conducted by the die-cast product is used to preheat the next mold component to be filled with molten metal. On the one hand, it helps to improve the quality of the die-cast product, and on the other hand, it utilizes waste heat to save energy and reduce emissions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The general assembly structure of the present invention is shown in FIG. Figure 1 ;

[0017] Figure 2 The general assembly structure of the present invention is shown in FIG. Figure 2 ;

[0018] Figure 3 for Figure 1 Rear view of the final assembly structure;

[0019] Figure 4 It is a schematic diagram of the cross-sectional structure of the mold assembly in the mold closing state in the present invention;

[0020] Figure 5 It is a schematic diagram of the cross-sectional structure of the mold assembly in the present invention in the mold opening state;

[0021] Figure 6 for Figure 5 A is an enlarged structural diagram;

[0022] Figure 7 for Figure 5 Schematic diagram of BB cross-section structure;

[0023] Figure 8 for Figure 5 The enlarged structural diagram at C in the figure.

[0024] In the figure: 1, base; 2, frame; 3, roller; 4, conveyor belt; 5, mold assembly; 6, support plate; 7, lifting cylinder; 8, lifting plate; 9, filling pipe; 10, fan; 11, air pipe 1; 12, air pipe 2; 13, air pipe 3; 14, rack 1; 15, ratchet; 16, fixed mold; 17, movable mold; 18, air inlet; 19, filling port; 20, air outlet; 21, airway; 22, fixed mold Fixed plate; 23. Sliding rod; 24. Connecting rod; 25. Gear; 26. Screw; 27. Push rod; 28. Cantilever; 29. ​​Rack 2; 30. Roller; 31. Spring 1; 32. Pump barrel; 33. Air pipe 4; 34. Push rod; 35. Column barrel; 36. Groove; 37. Push block; 38. Spring 2; 39. Piston plate; 40. Push-pull rod; 41. One-way valve 1; 42. One-way valve 2; 43. Air hole. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figures 1 to 8The present invention provides a technical solution: a die-casting device for manufacturing a small aircraft tail wing, comprising a base 1, and also comprising a lifting cylinder 7 and a frame 2 arranged on the base 1, a conveyor belt 4 is arranged on the frame 2, a plurality of mold assemblies 5 are arranged on the conveyor belt 4, a lifting plate 8 is fixed to the upper end of the piston rod of the lifting cylinder 7, and a cooling mechanism and a filling pipe 9 are arranged on the lifting plate 8, the lifting plate 8 drives the conveyor belt 4 to shift the mold assembly 5, and the mold assembly 5 is provided with a mold opening and closing mechanism and a demolding mechanism.

[0027] In this embodiment, both ends of the frame 2 are connected to rollers 3 for fixed-axis rotation, the two rollers 3 are connected through a conveyor belt 4, the inner rings of the two ratchet wheels 15 are coaxially fixedly connected to the two rollers 3, and both ends of the lifting plate 8 are fixed with racks 14, and the two racks 14 are respectively meshed with the outer rings of the two ratchet wheels 15.

[0028] In this embodiment, the plurality of mold assemblies 5 are arranged at equal intervals along the length direction of the conveyor belt 4. The mold assembly 5 includes a fixed mold 16 and a movable mold 17. A fixed plate 22 is fixed on the fixed mold 16. The fixed plate 22 is fixed on the conveyor belt 4. A filling port 19 corresponding to the filling pipe 9 is provided on the fixed mold 16.

[0029] In this embodiment, the cooling mechanism includes a fan 10 , an air pipe 1 11 , an air pipe 2 12 , and an air pipe 3 13 fixed on the lifting plate 8 , and an inlet end of the air pipe 1 11 is connected to an outlet end of the fan 10 .

[0030] In this embodiment, air ducts 21 are provided inside the fixed mold 16 and the movable mold 17, and air inlets 18 and air outlets 20 are provided at the upper ends of the fixed mold 16 and the movable mold 17. The air outlet end of air pipe 1 11 and the air inlet end of air pipe 2 12 are respectively connected to the air inlet 18 and the air outlet 20 on the same mold assembly 5, and the air outlet end of air pipe 2 12 and the air inlet end of air pipe 3 13 are respectively connected to the air inlet 18 and the air outlet 20 on another mold assembly 5.

[0031] In this embodiment, a support plate 6 is fixed on the frame 2, and one end of the support plate 6 is an arc-shaped segment structure bent downward.

[0032] In this embodiment, the mold opening and closing mechanism includes a column 35 fixed on the fixed mold 16, and the end of the column 35 facing away from the fixed mold 16 is rotatably connected to the gear 25. A cantilever 28 is fixed on the fixed mold 16, and a rack 29 is slidably connected to the cantilever 28, and the rack 29 is meshingly connected to the gear 25. The lower end of the rack 29 is hinged to the roller 30, and the lower end of the rack 29 is connected to the cantilever 28 through a spring 1 31.

[0033] In this embodiment, a screw rod 26 passes through the center of the gear 25 and is threadedly connected. The screw rod 26 is fixedly connected to the middle of the connecting rod 24. The upper end of the connecting rod 24 is fixedly connected to the sliding rod 23. The sliding rod 23 passes through and is slidably connected to the fixed mold 16, and the end of the sliding rod 23 away from the connecting rod 24 is fixedly connected to the movable mold 17.

[0034] In this embodiment, the demolding mechanism includes a lever 27 fixed on the slide rod 23, a groove 36 is opened on the inner wall of the mold cavity of the fixed mold 16, a top block 37 is embedded in the groove 36, and a push rod 34 passes through and is slidably connected to the fixed mold 16. One end of the push rod 34 passes through the inner wall of the groove 36 and is fixedly connected to the top block 37. The other end of the push rod 34 is connected to the fixed mold 16 through a spring 38, and the lever 27 can be in contact with the push rod 34.

[0035] In this embodiment, the demolding mechanism also includes a pump barrel 32 fixed on the fixed mold 16, and a piston plate 39 is slidably connected inside the pump barrel 32. A push-pull rod 40 is fixed on the piston plate 39. The end of the push-pull rod 40 away from the piston plate 39 is fixedly connected to the lower end of the connecting rod 24. A one-way valve 1 41 and a one-way valve 2 42 are fixed and connected on the side wall of the pump barrel 32. The one-way valve 2 42 is connected to the air hole 43 through the air pipe 4 33, and the air hole 43 is opened on the movable mold 17 and connected to the mold cavity. The conduction direction of the one-way valve 1 41 points to the inside of the pump barrel 32, and the conduction direction of the one-way valve 2 42 points to the air hole 43.

[0036] Working principle and advantages of the present invention: When the die-casting device for manufacturing the tail wing of a small aircraft is used, the working process is as follows:

[0037] like Figure 1 , Figure 2 and Figure 3 As shown, the controller controls the lifting cylinder 7 to work and drive the lifting plate 8 to move downward, so that the lifting plate 8 moves downward and drives the rack 14 to move downward. At this time, the rack 14 drives the outer ring of the corresponding ratchet 15 to move downward. Figure 3 The inner ring of the ratchet 15 is rotated clockwise, so that the inner ring cannot be driven to rotate through the ratchet pawl, and the conveyor belt 4 does not run. When the controller controls the lifting cylinder 7 to work and drive the lifting plate 8 to move up, the lifting plate 8 moves up and drives the rack 14 to move up. At this time, the rack 14 drives the outer ring of the corresponding ratchet 15 to rotate clockwise. Figure 3 The inner ring is rotated counterclockwise in the middle, so that the inner ring can be driven to rotate through the ratchet, that is, the drum 3 is driven to rotate in the middle through the rack 14 and the ratchet 15 while the lifting plate 8 moves upward. Figure 1 The conveyor belt 4 rotates clockwise in the middle, so that the conveyor belt 4 drives the mold assembly 5 Figure 1 Intermittent clockwise operation is performed.

[0038] As described above, when the mold assembly 5 is running clockwise, the roller 30 thereon contacts and rolls on the support plate 6. Figure 4 and Figure 5 As shown, the support plate 6 applies an upward reaction force to the rack 29 through the roller 30, so that the rack 29 compresses the spring 1 31, so that the spring 1 31 obtains a restoring force. When the rack 29 moves upward, the rack 29 drives the gear 25 to rotate, so that the gear 25 drives the screw 26 to move away from the fixed mold 16 under the action of the threaded transmission, and then the screw 26 applies a thrust to the connecting rod 24, so that the connecting rod 24 drives the movable mold 17 to approach the fixed mold 16 through the sliding rod 23 for mold closing, thereby realizing automatic mold closing while shifting the mold assembly 5.

[0039] As described above, after the lifting plate 8 moves downward, when the filling pipe 9 is docked with the filling port 19 on the fixed mold 16 directly below it, the controller controls the lifting cylinder 7 to stop working, and starts the furnace to transport molten metal to the filling pipe 9, so that the metal liquid is injected into the mold cavity after the mold is closed through the filling pipe 9 and the filling port 19. When the filling is completed, the controller controls the furnace to stop transporting the metal liquid, and starts the lifting cylinder 7 to work again, so that the lifting cylinder 7 drives the lifting plate 8 to move upward, thereby causing the lifting plate 8 to drive the filling pipe 9 to move upward away from the filling port 19, and in the process of the lifting plate 8 moving upward, the rack 14 and the ratchet 15 drive the conveyor belt 4 to shift the mold assembly 5 injected with metal liquid clockwise once.

[0040] As described above, while the filling pipe 9 is docked with the filling port 19, the outlet end of the air pipe 11 is connected to the air inlet 18 on the mold assembly 5 filled with molten metal, the inlet end of the air pipe 2 12 is connected to the air outlet 20 on the mold assembly 5, and the outlet end of the air pipe 2 12 is connected to the air inlet 18 on the mold assembly 5 at a position before the mold assembly 5 below the filling pipe 9, and the air outlet 20 on the mold assembly is also connected to the air inlet of the air pipe 3 13. When the controller starts the furnace, it also starts the fan 10. Figure 7 As shown, the fan 10 transports low-temperature air through the air pipe 11 to the mold assembly 5 filled with molten metal, cools the product in the mold cavity, takes away the heat and enters the air pipe 2 12 from the air outlet 20, so that the high-temperature air in the air pipe 12 enters the empty mold assembly 5 to be filled with molten metal to preheat the mold cavity, thereby achieving cooling of the die-cast product and preheating of the subsequent mold assembly 5 using the heat of the die-cast product, thereby achieving energy-saving effect.

[0041] As mentioned above, during the process of closing the fixed mold 16 and the movable mold 17, the connecting rod 24 pulls the piston plate 39 to the left in the pump barrel 32 through the push-pull rod 40 and applies a suction force to the pump barrel 32. Since the conduction direction of the one-way valve 41 points to the inside of the pump barrel 32, and the conduction direction of the one-way valve 42 points to the air hole 43, the suction force draws external air into the pump barrel 32 through the one-way valve 41. After the mold assembly 5 filled with molten metal is cooled, the upward movement of the lifting plate 8 drives the mold assembly 5 to shift once. When the roller 30 is separated from the support plate 6, the rack 29 moves downward under the action of the restoring force of the spring 1 31, so that the rack 29 drives the gear 25 to rotate in the opposite direction, and then the gear 25 drives the connecting rod 24 to move toward the fixed mold 16 through the screw 26, and the connecting rod 24 drives the movable mold 17 away from the fixed mold 16 through the sliding rod 23, thereby realizing automatic mold separation.

[0042] like Figure 6 and Figure 8 As shown, the sliding rod 23 moves while driving the lever 27 toward the ejector rod 34. When the lever 27 contacts the ejector rod 34, the ejector rod 34 is pushed to compress the spring 2 38, so that the spring 2 38 obtains a restoring force, and the ejector rod 34 ejects the die-cast product from the mold cavity in the fixed mold 16 through the ejector block 37. When the connecting rod 24 moves toward the fixed mold 16, it drives the piston plate 39 to move right in the pump barrel 32 through the push-pull rod 40 and applies a compressive force to the pump barrel 32. The compressive force transports the air in the pump barrel 32 to the air hole 43 through the air pipe 43, and then the air hole 43 outputs the die-cast product stuck on the movable mold 17 to blow out, thereby realizing demolding while parting the mold, without manual operation, saving time and effort, being safe and reliable, and improving the degree of automation. The entire device realizes automatic mold closing, molten metal filling, cooling, and mold parting and demolding, which greatly improves production efficiency and saves working space.

[0043] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0044] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0045] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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 an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A die-casting device for manufacturing a small aircraft tail, comprising a base (1), characterized in that: It also comprises a lifting cylinder (7) and a frame (2) arranged on the base (1); a conveyor belt (4) is arranged on the frame (2); a plurality of mold assemblies (5) are arranged on the conveyor belt (4); a lifting plate (8) is fixed to the upper end of the piston rod of the lifting cylinder (7); a cooling mechanism and a filling pipe (9) are arranged on the lifting plate (8); the lifting plate (8) drives the conveyor belt (4) to shift the mold assembly (5); and a mold opening and closing mechanism and a demoulding mechanism are arranged on the mold assembly (5); Both ends of the frame (2) are connected to rollers (3) in a fixed-axis rotation manner, the two rollers (3) are connected by transmission via a conveyor belt (4), the inner rings of the two ratchet wheels (15) are coaxially fixedly connected to the two rollers (3), and both ends of the lifting plate (8) are fixed with racks (14), and the two racks (14) are meshedly connected to the outer rings of the two ratchet wheels (15); A plurality of the mold assemblies (5) are arranged at equal intervals along the length direction of the conveyor belt (4), the mold assembly (5) comprising a fixed mold (16) and a movable mold (17), a fixed plate (22) being fixed on the fixed mold (16), the fixed plate (22) being fixed on the conveyor belt (4), and a filling port (19) corresponding to the filling pipe (9) being provided on the fixed mold (16); A support plate (6) is fixed on the frame (2), and one end of the support plate (6) is an arc-shaped segment structure bent downward; The mold opening and closing mechanism comprises a column (35) fixed on the fixed mold (16), one end of the column (35) away from the fixed mold (16) is rotatably connected to a gear (25), a cantilever (28) is fixed on the fixed mold (16), a rack (29) is slidably connected to the cantilever (28), and the rack (29) is meshingly connected to the gear (25), the lower end of the rack (29) is hinged to a roller (30), and the lower end of the rack (29) is connected to the cantilever (28) via a spring (31); A screw rod (26) passes through the center of the gear (25) and is threadedly connected, the screw rod (26) is fixedly connected to the middle of the connecting rod (24), the upper end of the connecting rod (24) is fixedly connected to the sliding rod (23), the sliding rod (23) passes through and is slidably connected to the fixed mold (16), and the end of the sliding rod (23) away from the connecting rod (24) is fixedly connected to the movable mold (17); The demoulding mechanism comprises a lever (27) fixed on the slide rod (23); a groove (36) is provided on the inner wall of the mold cavity of the fixed mold (16); a top block (37) is embedded in the groove (36); a top rod (34) passes through and is slidably connected to the fixed mold (16); one end of the top rod (34) passes through the inner wall of the groove (36) and is fixedly connected to the top block (37); the other end of the top rod (34) is connected to the fixed mold (16) via a second spring (38); and the lever (27) can be in contact with the top rod (34).

2. A die-casting device for manufacturing a small aircraft tail according to claim 1, characterized in that: The cooling mechanism comprises a fan (10), an air pipe 1 (11), an air pipe 2 (12) and an air pipe 3 (13) fixed on the lifting plate (8); the inlet end of the air pipe 1 (11) is connected to the outlet end of the fan (10).

3. A die-casting device for manufacturing a small aircraft tail wing according to claim 2, characterized in that: The fixed mold (16) and the movable mold (17) are each provided with an air passage (21) therein, and the upper ends of the fixed mold (16) and the movable mold (17) are each provided with an air inlet (18) and an air outlet (20), the air outlet end of the air pipe one (11) and the air inlet end of the air pipe two (12) are respectively connected to the air inlet (18) and the air outlet (20) on the same mold component (5), and the air outlet end of the air pipe two (12) and the air inlet end of the air pipe three (13) are respectively connected to the air outlet (20) and the air inlet (18) on another mold component (5).

4. A die-casting device for manufacturing a small aircraft tail wing according to claim 3, characterized in that: The demoulding mechanism also includes a pump barrel (32) fixed on the fixed mold (16), a piston plate (39) being slidably connected inside the pump barrel (32), a push-pull rod (40) being fixed on the piston plate (39), and one end of the push-pull rod (40) away from the piston plate (39) being fixedly connected to the lower end of the connecting rod (24), a one-way valve 1 (41) and a one-way valve 2 (42) being fixed on and connected to the side wall of the pump barrel (32), the one-way valve 2 (42) being connected to the air hole (43) through the air pipe 4 (33), and the air hole (43) being opened on the movable mold (17) and connected to the mold cavity, the conduction direction of the one-way valve 1 (41) pointing to the inside of the pump barrel (32), and the conduction direction of the one-way valve 2 (42) pointing to the air hole (43).

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