Shakeout equipment for casting container corner fittings

Abstract

The invention discloses shakeout equipment for casting container corner fittings, and relates to the technical field of shakeout equipment. The shakeout equipment for casting the container corner fittings comprises a device box and further comprises a shakeout box with an upward opening, the shakeout box is arranged at the upper end of the device box, the lower end of the shakeout box is fixedly connected with a lifting rod, the lifting rod is longitudinally installed at the top end of the device box in a sliding mode, a shakeout plate is fixedly connected into the shakeout box, and the shakeout plate is connected with the lifting rod in a sliding mode. Sieve pores are formed in the shakeout plate; a lifting part for driving the shakeout box to lift up and down is arranged in the device box; the multiple device holes are all formed in the shakeout plate, vertical pipes are rotationally installed in the device holes, upper air holes are formed in the tops of the vertical pipes, and multiple side air holes which are circumferentially distributed are formed in the outer walls of the vertical pipes; according to the container corner fitting, the interior of the container corner fitting body can be subjected to efficient shakeout treatment.

Description

Technical Field

[0001] The present invention belongs to the technical field of shakeout equipment, and specifically relates to a shakeout equipment for casting container corner fittings. Background Art

[0002] Container corner fittings are key load-bearing components of containers, used for lifting, stacking, and fixing containers. They are usually produced by sand casting process using high-strength cast steel materials. During the casting process, molten steel is poured into the sand mold cavity made of resin sand or sodium silicate sand, and after cooling and shaping, corner fitting castings are obtained. And container corner fittings are usually made of ordinary cast steel materials to meet the requirements of conventional strength and economy. However, in extremely special application scenarios (such as aerospace, deep sea, or strong corrosion environment), to meet the requirements of ultra-lightweight, ultra-high strength, or excellent corrosion resistance, high-quality titanium alloys (such as Ti-6Al-4V) are selected for casting. Although their cost is significantly higher than that of cast steel and the processing difficulty is large, they can provide more excellent comprehensive performance.

[0003] After the container corner fittings are cast and formed, they need to be vibrated or shot blasted by a shakeout machine to separate the sand mold from the corner fittings and recycle the molding sand, so as to prepare for subsequent machining and surface treatment. During this period, since there is a cavity inside the container corner fittings and through holes are provided on the side, it is difficult to easily discharge the internal molding sand, which often requires the shakeout machine to run for a longer time or generate a greater vibration amplitude to improve the treatment effect, resulting in a significant increase in processing cost. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a shakeout equipment for casting container corner fittings that can overcome or at least partially solve the above problems.

[0005] To solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: A shakeout equipment for casting container corner fittings, including a device box, and further including: a shakeout box with an upward opening, arranged at the upper end of the device box. Among them, a lifting rod is fixedly connected to the lower end of the shakeout box, and the lifting rod is longitudinally slidably installed at the top of the device box. A shakeout plate is fixedly connected inside the shakeout box, and the shakeout plate is provided with sieve holes. An elevating part for driving the shakeout box to move up and down is arranged inside the device box; a plurality of device holes are all arranged on the shakeout plate. Among them, a vertical pipe is rotatably installed inside the device hole, an upper air hole is provided at the top of the vertical pipe, and a plurality of side air holes are circumferentially distributed on the outer wall of the vertical pipe.

[0006] Preferably, the lifting part includes a horizontal shaft rotatably installed in the device box. A turntable is fixedly installed on the horizontal shaft. One end of the shaft of the turntable is rotatably connected to a long rod, and the other end of the long rod is rotatably connected to the lower end of the sand dropping box. Among them, a driving motor is fixedly installed in the device box, and the output shaft of the driving motor is connected to the horizontal shaft through two meshing transmission gears.

[0007] Preferably, an elastic rod is fixedly connected to the outer wall of the vertical pipe, and a knocking block is fixedly connected to the end of the elastic rod.

[0008] Preferably, a telescopic airbag is fixedly installed on the upper end of the device box. An air suction pipe and an exhaust pipe communicated with the telescopic airbag are fixedly connected to the telescopic airbag. One-way valves are fixedly installed in both the air suction pipe and the exhaust pipe. The telescopic end of the telescopic airbag is fixedly connected to a pressing plate. The lower end of the vertical pipe is rotatably connected to the top surface of the pressing plate at the lower end, and the lower end of the vertical pipe is communicated with the exhaust pipe.

[0009] Preferably, the axis of the side air hole is perpendicular to the axis of the vertical pipe but does not intersect.

[0010] Furthermore, air suction hoods communicated with the sand dropping box are fixedly connected to both sides of the sand dropping box, and the air suction ends of the air suction hoods are arranged obliquely downward. A filter screen is fixedly installed at the air suction end of the air suction hood, and the end of the air suction pipe is fixedly connected to and communicated with the air suction hood.

[0011] Preferably, a cross beam is slidably installed on the top of the sand dropping box. A plurality of strip-shaped plates extending to the upper end surface of the sand dropping plate are fixedly connected to the cross beam. A pressing roller is rotatably installed at the lower end of the strip-shaped plate. The vertical pipe is located between two adjacent strip-shaped plates. A pushing part for driving the cross beam to slide reciprocally is arranged on the sand dropping box.

[0012] Furthermore, the pushing part includes a screw rod rotatably connected to the outer wall of the sand dropping box. A sliding table fixedly connected to the cross beam is threadedly connected to the outer wall of the screw rod. A driven gear is fixedly installed at one end of the screw rod. A rack meshing with the driven gear is fixedly connected to the device box.

[0013] Furthermore, a plurality of short plates arranged at equal intervals are fixedly connected between two adjacent strip-shaped plates. A rectangular area is formed between the short plates and the strip-shaped plates, and the vertical pipe is located in the rectangular area.

[0014] Preferably, a discharge groove is formed in the outer wall of the lower end of the sand dropping box, and the bottom inside the sand dropping box is inclined towards the discharge groove.

[0015] After adopting the above technical solutions, the present invention has the following beneficial effects compared with the prior art: 1. The present invention discharges the internal air to the vertical pipe through the exhaust pipe. The upper air holes will blow the air flow towards the inner top of the container corner fitting body, and the side air holes will blow the air flow towards the inner side wall of the container corner fitting body, so that the inside of the container corner fitting body can also be efficiently sand-removed.

[0016] 2. The present invention drives the knocking block to swing up and down through the elastic rod, and the knocking block will knock on the inner wall of the container corner fitting body. With the blowing action of the upper air holes and the side air holes, the sand in the container corner fitting body can be shaken off more efficiently.

[0017] 3. The present invention discharges air obliquely towards the inside of the container corner fitting body through the side air holes. Then the vertical pipe will also revolve around its axis. The rotating vertical pipe will make the side air holes blow the air more comprehensively towards the inner wall of the container corner fitting body, and make the knocking block knock on the inner wall of the container corner fitting body more comprehensively, so that the sand in the container corner fitting body can fall off more efficiently. When the vertical pipe drives the knocking block to revolve synchronously, the knocking block will also probably push the container corner fitting body to rotate slightly, so that the container corner fitting body can shake off the sand more efficiently.

[0018] 4. The present invention sucks air into the suction hood through the suction pipe, and a negative pressure will be generated in the sand-removing box. On the one hand, it can suck the dust generated during vibration into the sand-removing box and be filtered by the filter screen, which can reduce the pollution of the surrounding air by the dust. On the other hand, it can also make the sand on the outer wall of the container corner fitting body fall off more easily and enter the inner bottom of the sand-removing box through the sieve holes.

[0019] 5. The present invention drives the driven gear to roll reciprocally along the rack through the sand-removing box. Then the strip plate will push the container corner fitting body to reciprocally move horizontally, making the sand on the container corner fitting body fall off more easily, and can also prevent the sand from entering certain sieve holes too concentratedly, improving the efficiency of the sieve holes discharging the sand, and cooperating with the rotating vertical pipe and the revolving knocking block inside, so that the sand in the container corner fitting body can fall off more easily.

[0020] 6. The reciprocally moving strip plate will also drive the pressure roller to roll reciprocally on the sand-removing plate. On the one hand, it can make the sand enter multiple sieve holes, improving the efficiency of the sand discharging from the sieve holes. On the other hand, the pressure roller can also crush the agglomerated sand, making the agglomerated sand not easy to accumulate on the sand-removing plate and block the sieve holes.

[0021] The following further describes in detail the specific implementation manners of the present invention with reference to the accompanying drawings. Description of the Drawings

[0022] In the drawings: Figure 1 is the first perspective structural schematic diagram of a sand-removing device for container corner fitting casting proposed by the present invention; Figure 2 The second perspective structural schematic diagram of a shakeout device for casting container corner fittings proposed by the present invention; Figure 3 The partial sectional structural schematic diagram of a shakeout device for casting container corner fittings proposed by the present invention; Figure 4 The sectional structural schematic of the shakeout box of a shakeout device for casting container corner fittings proposed by the present invention Figure 1 ; Figure 5 The vertical pipe structural schematic diagram of a shakeout device for casting container corner fittings proposed by the present invention; Figure 6 The sectional structural schematic of the shakeout box of a shakeout device for casting container corner fittings proposed by the present invention Figure 2 ; Figure 7 The strip plate structural schematic diagram of a shakeout device for casting container corner fittings proposed by the present invention; Figure 8 The pressing plate structural schematic diagram of a shakeout device for casting container corner fittings proposed by the present invention; Figure 9 The structural schematic diagram of the container corner fitting.

[0023] In the figure: 1, device box; 2, shakeout box; 3, lifting rod; 4, shakeout plate; 5, sieve holes; 6, device holes; 7, vertical pipe; 8, upper air holes; 9, side air holes; 10, elastic rod; 11, knocking block; 12, pressing plate; 13, telescopic airbag; 14, suction pipe; 15, exhaust pipe; 16, horizontal shaft; 17, turntable; 18, long rod; 19, drive motor; 20, transmission gear; 21, cross beam; 22, strip plate; 23, short plate; 24, rectangular area; 25, pressing roller; 26, screw; 27, sliding table; 28, driven gear; 29, rack; 30, suction hood; 31, filter screen; 32, discharge chute; 33, container corner fitting body; 34, main hole; 35, branch hole. Specific embodiments

[0024] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments in conjunction with the accompanying drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0025] Embodiment 1: Refer to Figures 1 - 5, A shakeout device for casting container corner fittings, including a device box 1 with a hollow interior, and further including: a shakeout box 2 with an upward opening, arranged at the upper end of the device box 1. Among them, a lifting rod 3 is fixedly connected to the lower end of the shakeout box 2, and the lifting rod 3 is longitudinally slidably installed at the top of the device box 1. A shakeout plate 4 is fixedly connected inside the shakeout box 2, and the shakeout plate 4 is used to place the container corner fitting body 33. Sieve holes 5 are provided on the shakeout plate 4. An elevating part for driving the shakeout box 2 to move up and down is arranged inside the device box 1. The elevating part includes a horizontal shaft 16 rotatably installed inside the device box 1. A turntable 17 is fixedly installed on the horizontal shaft 16. The shaft end of the turntable 17 is rotatably connected to a long rod 18, and the other end of the long rod 18 is rotatably connected to the lower end of the shakeout box 2. Among them, a driving motor 19 is fixedly installed inside the device box 1, and the output shaft of the driving motor 19 is connected to the horizontal shaft 16 through two meshing transmission gears 20; a plurality of device holes 6 are all arranged on the shakeout plate 4. Among them, a vertical pipe 7 is rotatably installed inside the device hole 6. An upper air hole 8 is provided at the top of the vertical pipe 7, and a plurality of side air holes 9 distributed circumferentially are provided on the outer wall of the vertical pipe 7.

[0026] During use, the main hole 34 of the container corner fitting body 33 is oriented and buckled on the vertical pipe 7. That is to say, the surface of the container corner fitting body 33 with the main hole 34 needs to be attached to the shakeout plate 4, and the branch holes 35 on the side surface of the container corner fitting body 33 will be arranged horizontally. So during use, the driving motor 19 will drive the horizontal shaft 16 to rotate through two meshing transmission gears 20, and the horizontal shaft 16 will drive the turntable 17 to rotate. The turntable 17 will drive the shakeout box 2 to move up and down based on the principle of a crank-slider through the long rod 18. The shakeout box 2 will drive the container corner fitting body 33 to jolt and vibrate up and down through the shakeout plate 4, and the removal of the molding sand can be completed. The removed molding sand will pass through the sieve holes 5 and enter the inner bottom of the shakeout box 2; during the shakeout process, compressed air is conveyed into the vertical pipe 7, and the air will be discharged from the upper air hole 8 at the top of the vertical pipe 7 and the side air holes 9 on the side. The upper air hole 8 will blow the air flow towards the inner top of the container corner fitting body 33, and the side air holes 9 will blow the air flow towards the inner side wall of the container corner fitting body 33, so that the inside of the container corner fitting body 33 can also be efficiently shaken out. In practice, an air pump or an air tank can be selected to supply air to the vertical pipe 7.

[0027] An elastic rod 10 is fixedly connected to the outer wall of the above-mentioned vertical pipe 7, and a knocking block 11 is fixedly connected to the end of the elastic rod 10; so when the vertical pipe 7 moves up and down, the vertical pipe 7 will also drive the knocking block 11 to swing up and down through the elastic rod 10, and the knocking block 11 will knock on the inner wall of the container corner fitting body 33. With the blowing action of the upper air hole 8 and the side air holes 9, the molding sand inside the container corner fitting body 33 can be shaken off more efficiently.

[0028] The axis of the above-mentioned side air hole 9 is perpendicular to the axis of the vertical pipe 7 but does not intersect with it. That is to say, the side air hole 9 is inclinedly arranged on the outer wall of the vertical pipe 7. Therefore, when the side air hole 9 exhausts air, the vertical pipe 7 will be subjected to a torsional thrust; since the axis of the side air hole 9 does not intersect with the axis of the vertical pipe 7, that is to say, the side air hole 9 will inclinedly discharge air into the container corner fitting body 33. Thus, the vertical pipe 7 will also revolve around its axis. The rotating vertical pipe 7 will make the side air hole 9 blow air more comprehensively towards the inner wall of the container corner fitting body 33, and make the knocking block 11 knock the inner wall of the container corner fitting body 33 more comprehensively, so that the efficiency of the sand in the container corner fitting body 33 falling off is higher. When the vertical pipe 7 drives the knocking block 11 to revolve synchronously, since the outer shape of the container corner fitting body 33 is rectangular, when the knocking block 11 knocks on the plane of the inner wall of the container corner fitting body 33, it will also have a high probability of pushing the container corner fitting body 33 to rotate slightly, so that the container corner fitting body 33 can shake off the sand more efficiently.

[0029] A discharge chute 32 is provided on the outer wall of the lower end of the above-mentioned sand falling box 2, and the inner bottom of the sand falling box 2 is inclined towards the discharge chute 32. Therefore, the ascending and descending sand falling box 2 will cause the sand in the inner bottom to be discharged from the discharge chute 32.

[0030] Embodiment 2: Refer to Figure 5 , a sand falling device for casting container corner fittings, which is basically the same as Embodiment 1. Furthermore: A telescopic airbag 13 is fixedly installed at the upper end of the above-mentioned device box 1. An air suction pipe 14 and an exhaust pipe 15 communicated with it are fixedly connected to the telescopic airbag 13. Check valves are fixedly installed in both the air suction pipe 14 and the exhaust pipe 15. The telescopic end of the telescopic airbag 13 is fixedly connected with a pressing plate 12. The lower end of the vertical pipe 7 is rotatably connected to the top surface of the pressing plate 12, and the lower end of the vertical pipe 7 is communicated with the exhaust pipe 15.

[0031] Specifically, during the sand falling process, the ascending and descending sand falling box 2 will drive the vertical pipe 7 to move up and down synchronously, and the vertical pipe 7 will drive the pressing plate 12 to move up and down. When the pressing plate 12 presses down on the telescopic airbag 13, the telescopic airbag 13 will discharge the internal air into the vertical pipe 7 through the exhaust pipe 15, so as to automatically supply air to the vertical pipe 7. Of course, when the air pressure in the vertical pipe 7 is insufficient, an external air source can also be connected to assist in supplying air. When the vertical pipe 7 drives the pressing plate 12 to lift up and stretch the telescopic airbag 13, the telescopic airbag 13 will suck air through the air suction pipe 14.

[0032] Air suction hoods 30 communicated with it are fixedly connected to both sides of the above-mentioned sand falling box 2, and the air suction ends of the air suction hoods 30 are inclined downward. A filter screen 31 for filtering sand is fixedly installed at the air suction end of the air suction hood 30. The end of the air suction pipe 14 is fixedly connected to and communicated with the air suction hood 30.

[0033] Specifically, when the suction pipe 14 sucks in air, the suction pipe 14 sucks in air from the suction hood 30, and the suction hood 30 sucks in air from the inside of the knock-out box 2. A negative pressure is generated inside the knock-out box 2. On the one hand, it can suck the dust generated during vibration into the knock-out box 2 and filter it through the filter screen 31, which can reduce the pollution of the surrounding air by the dust. On the other hand, it can also make the molding sand on the outer wall of the container corner fitting body 33 fall off more easily and enter the inner bottom of the knock-out box 2 from the sieve holes 5.

[0034] Example 3: Refer to Figure 4 , a knock-out device for casting container corner fittings, which is basically the same as Example 2. Further: A cross beam 21 is slidably installed on the top of the above-mentioned knock-out box 2. A plurality of strip plates 22 extending to the upper end surface of the knock-out plate 4 are fixedly connected to the cross beam 21. A pressure roller 25 is rotatably installed at the lower end of the strip plate 22. The vertical pipe 7 is located between two adjacent strip plates 22. A pushing part for driving the cross beam 21 to reciprocate and slide is provided on the knock-out box 2; the pushing part includes a screw rod 26 rotatably connected to the outer wall of the knock-out box 2. A slide table 27 fixedly connected to the cross beam 21 is threadedly connected to the outer wall of the screw rod 26. One end of the screw rod 26 is fixedly installed with a driven gear 28. A rack 29 meshed with the driven gear 28 is fixedly connected to the device box 1.

[0035] Specifically, when the knock-out box 2 moves up and down, the knock-out box 2 drives the driven gear 28 to roll reciprocally along the rack 29. Then the driven gear 28 rotates reciprocally and drives the screw rod 26 to rotate reciprocally. The screw rod 26 drives the slide table 27 to reciprocally slide along its axis. The slide table 27 drives the strip plate 22 to reciprocally traverse on the knock-out plate 4 through the cross beam 21. Then it will push the container corner fitting body 33 to reciprocally traverse, making the molding sand on the container corner fitting body 33 fall off more easily. And it can also prevent the molding sand from entering some sieve holes 5 too concentratedly, improving the efficiency of the sieve holes 5 to discharge the molding sand. And in cooperation with the internally rotating vertical pipe 7 and the revolving knocking block 11, the molding sand inside the container corner fitting body 33 will fall off more easily. The reciprocally traversing strip plate 22 will also drive the pressure roller 25 to reciprocally roll on the knock-out plate 4. On the one hand, it can make the molding sand enter multiple sieve holes 5, improving the efficiency of the molding sand to discharge from the sieve holes 5. On the other hand, the pressure roller 25 can also crush the agglomerated molding sand, making the agglomerated molding sand not easy to accumulate on the knock-out plate 4 and block the sieve holes 5.

[0036] Example 4: Refer to Figure 4 , a knock-out device for casting container corner fittings, which is basically the same as Example 3. Further: A plurality of short plates 23 arranged at equal intervals are fixedly connected between two adjacent strip plates 22 at the above-mentioned positions. A rectangular area 24 is formed between the short plates 23 and the strip plates 22. The vertical pipe 7 is located in the rectangular area 24.

[0037] Specifically, the setting of the short board 23 can limit the container corner fitting body 33 within the rectangular area 24, which can reduce the probability of the container corner fitting body 33 detaching from the top of the vertical pipe 7.

[0038] When the present invention is in use, the main hole 34 of the container corner fitting body 33 faces and is buckled on the vertical pipe 7, that is to say, the side of the container corner fitting body 33 with the main hole 34 needs to be attached to the sand dropping plate 4. Therefore, when in use, the driving motor 19 drives the horizontal shaft 16 to rotate through two meshing transmission gears 20, and the horizontal shaft 16 drives the turntable 17 to rotate. The turntable 17 drives the sand dropping box 2 to move up and down based on the principle of a crank-slider through the long rod 18. The sand dropping box 2 drives the container corner fitting body 33 to jolt up and down and vibrate through the sand dropping plate 4, thus completing the removal of the molding sand. The removed molding sand passes through the sieve holes 5 and enters the inner bottom of the sand dropping box 2; During the sand dropping process, the ascending and descending sand dropping box 2 drives the vertical pipe 7 to move up and down synchronously, and the vertical pipe 7 drives the pressing plate 12 to move up and down. When the pressing plate 12 presses down on the telescopic airbag 13, the telescopic airbag 13 discharges the internal air into the vertical pipe 7 through the exhaust pipe 15, and finally discharges from the upper air holes 8 at the top of the vertical pipe 7 and the side air holes 9 on the side. The upper air holes 8 blow the air flow towards the inner top of the container corner fitting body 33, and the side air holes 9 blow the air flow towards the inner side wall of the container corner fitting body 33, so that the inside of the container corner fitting body 33 can also be efficiently sand-dropped. When the vertical pipe 7 drives the pressing plate 12 to lift up and stretch the telescopic airbag 13, the telescopic airbag 13 sucks air through the air suction pipe 14.

[0039] When the vertical pipe 7 moves up and down, the vertical pipe 7 also drives the knocking block 11 to swing up and down through the elastic rod 10, and the knocking block 11 knocks on the inner wall of the container corner fitting body 33. With the blowing action of the upper air holes 8 and the side air holes 9, the molding sand inside the container corner fitting body 33 can be shaken off more efficiently.

[0040] When the shakeout box 2 moves up and down, the shakeout box 2 will drive the driven gear 28 to roll reciprocally along the rack 29. Then the driven gear 28 will rotate reciprocally and drive the screw rod 26 to rotate reciprocally. The screw rod 26 will drive the slide table 27 to slide reciprocally along its axis. The slide table 27 will drive the strip plate 22 to traverse reciprocally on the shakeout plate 4 through the cross beam 21. Then it will push the container corner fitting body 33 to traverse reciprocally, making the molding sand on the container corner fitting body 33 easier to fall off. And it can also prevent the molding sand from concentrating too much into some of the sieve holes 5, improving the efficiency of the sieve holes 5 to discharge the molding sand. And in cooperation with the vertically rotating pipe 7 and the knocking block 11 that revolves, it will make the molding sand inside the container corner fitting body 33 easier to fall off. The reciprocally traversing strip plate 22 will also drive the pressure roller 25 to roll reciprocally on the shakeout plate 4. On the one hand, it can make the molding sand enter multiple sieve holes 5, improving the efficiency of the molding sand to discharge from the sieve holes 5. On the other hand, the pressure roller 25 can also crush the agglomerated molding sand, making the agglomerated molding sand not easy to accumulate on the shakeout plate 4 and block the sieve holes 5.

[0041] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art of the present invention, without departing from the scope of the technical solution of the present invention, can make some changes or modifications to the above-mentioned technical content as equivalent embodiments of equivalent changes by using the above-mentioned hints. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A sand-falling device for container corner casting, comprising a device box (1), characterized in that: Also includes: A sand-falling box (2) with an opening facing upward is arranged at the upper end of the device box (1), wherein a lifting rod (3) is fixedly connected to the lower end of the sand-falling box (2), and the lifting rod (3) is longitudinally slidably mounted on the top of the device box (1), a sand-falling plate (4) is fixedly connected inside the sand-falling box (2), and a sieve hole (5) is provided on the sand-falling plate (4), and a lifting part for driving the sand-falling box (2) to move up and down is provided inside the device box (1); A plurality of device holes (6) are all arranged on the sand falling plate (4), wherein a vertical pipe (7) is rotatably installed in the device hole (6), an upper air hole (8) is arranged at the top of the vertical pipe (7), and a plurality of side air holes (9) distributed circumferentially are arranged on the outer wall of the vertical pipe (7).

2. The sand-falling equipment for container corner casting according to claim 1, characterized in that: The lifting part comprises a transverse shaft (16) rotatably mounted in a device box (1), a turntable (17) being fixedly mounted on the transverse shaft (16), a long rod (18) being rotatably connected to the shaft end of the turntable (17), the other end of the long rod (18) being rotatably connected to the lower end of the sand falling box (2), wherein a drive motor (19) is fixedly mounted in the device box (1), and an output shaft of the drive motor (19) is connected to the transverse shaft (16) via two mutually meshing transmission gears (20).

3. The sand dropping equipment for container corner casting according to claim 1, characterized in that: An elastic rod (10) is fixedly connected to the outer wall of the vertical pipe (7), and a knocking block (11) is fixedly connected to the end of the elastic rod (10).

4. The sand dropping equipment for container corner casting according to claim 1, characterized in that: A telescopic airbag (13) is fixedly mounted on the upper end of the device box (1), and an air intake pipe (14) and an air exhaust pipe (15) which are in communication with the telescopic airbag (13) are fixedly connected to the telescopic airbag (13), and a check valve is fixedly mounted in each of the air intake pipe (14) and the air exhaust pipe (15). A pressure plate (12) is fixedly connected to the telescopic end of the telescopic airbag (13), and the top surface of the pressure plate (12) at the lower end of the vertical pipe (7) is rotatably connected, and the lower end of the vertical pipe (7) is in communication with the exhaust pipe (15).

5. The sand dropping equipment for container corner casting according to claim 1, characterized in that: The axis of the side air hole (9) and the axis of the vertical pipe (7) are perpendicular to each other but do not intersect.

6. The sand dropping equipment for container corner casting according to claim 4, characterized in that: Both sides of the shakeout box (2) are fixedly connected to an air suction hood (30) in communication therewith, and the air suction end of the air suction hood (30) is arranged to be tilted downward, a filter screen (31) is fixedly installed on the air suction end of the air suction hood (30), and the end of the air suction pipe (14) is fixedly connected to and in communication with the air suction hood (30).

7. The sand dropping equipment for container corner casting according to claim 1, characterized in that: A crossbeam (21) is slidably mounted on the top of the sand-falling box (2), a plurality of strip plates (22) extending to the upper end surface of the sand-falling plate (4) are fixedly connected to the crossbeam (21), a pressure roller (25) is rotatably mounted on the lower end of the strip plate (22), the vertical pipe (7) is located between two adjacent strip plates (22), and a driving portion for driving the crossbeam (21) to slide back and forth is provided on the sand-falling box (2).

8. The sand dropping equipment for container corner casting according to claim 7, characterized in that: The pushing portion comprises a screw rod (26) rotatably connected to the outer wall of the sand-falling box (2); the outer wall of the screw rod (26) is threadedly connected to a slide table (27) fixedly connected to the crossbeam (21); a driven gear (28) is fixedly mounted on one end of the screw rod (26); and a rack (29) meshingly connected to the driven gear (28) is fixedly connected to the device box (1).

9. The sand dropping equipment for container corner casting according to claim 7, characterized in that: A plurality of short plates (23) arranged at equal intervals are fixedly connected between two strip plates (22) at adjacent positions, a rectangular area (24) is formed between the short plates (23) and the strip plates (22), and the vertical pipe (7) is located within the rectangular area (24).

10. The sand dropping equipment for container corner casting according to claim 1, characterized in that: A discharge groove (32) is provided on the outer wall of the lower end of the sand shaking box (2), and the inner bottom of the sand shaking box (2) is inclined toward the discharge groove (32).

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