A mold shell cleaning and fixing device and cleaning method

Abstract

The present invention provides a mold cleaning and fixing device and a cleaning method, belonging to the technical field of mold cleaning equipment. It includes a boom that moves on a traveling frame, a mounting frame that is rotatably provided below the boom, an installation station for mounting the mold provided within the mounting frame, a first clamping assembly for clamping the mold that is horizontally slidably installed on both sides of the chassis on the inner bottom wall of the mounting frame, a lifting frame that is slidably installed vertically inside the mounting frame, and a second clamping assembly for clamping the pouring cup provided on the lifting frame. By using the first clamping assembly on the mounting frame to fix the mold and the second clamping assembly on the lifting frame to fix the pouring cup, and then filling the mold with water, and swinging the mounting frame back and forth relative to the boom, the water inside the mold cleans the inner wall of the mold, and the mold and pouring cup can be fixed intact, which has the effect of improving the qualified rate of the product.

Description

Technical Field

[0001] The present invention relates to the technical field, and in particular to a mold shell cleaning and fixing device and a cleaning method. Background Art

[0002] In the field of aviation technology, aircraft engines are an indispensable basic equipment for a country's armed forces' offensive and defensive strategies, and are an important indicator of a country's national defense strength and comprehensive national strength. The quality requirements of aircraft engines are quite stringent, especially the turbine blades in the combustion chamber. All components operate at relatively high temperatures and high speeds, and must work for a long time under conditions above 800°C. At the same time, they must withstand great stress under vibration and airflow, so there must be no metallurgical defects.

[0003] Turbine blades are produced through investment casting, a special process. In this process, the production cycle is long, the process control is difficult, and it is very easy to introduce inclusion sources. The mold shell of traditional production needs to be cleaned before melting and pouring.

[0004] Currently, there are two main ways to clean mold shells. One is manual cleaning, where the operator usually directly injects water into the mold shell, then repeatedly shakes and overturns it several times to achieve the purpose of cleaning. However, since the mold shell weighs about 10 kg and the mold shell filled with water weighs about 19 kg, the labor intensity is high and the cleaning efficiency is low. At the same time, the pouring cup mold shell is easily affected by collision or wear and falls into the mold shell, generating new inclusions. The other is contact mechanical cleaning, which is the method we often use. In order to fix the mold shell, it is fixed by wrapping a strap around it, and then water is injected into the mold shell. The mold shell is repeatedly overturned several times. During the cleaning process, the shell mold will loosen and rub, causing the inner edge of the pouring cup mold shell to fall into the mold shell, ultimately resulting in defects such as surface inclusions and penetrating inclusions in the casting. Summary of the Invention

[0005] In view of the above problems, the present invention provides a mold shell cleaning and fixing device and a cleaning method.

[0006] In order to achieve the above-mentioned object of the invention, the technical solution adopted by the present invention is as follows:

[0007] In the first aspect, a mold cleaning and fixing device is provided, including a boom moving on a rack, a mounting frame rotatably arranged below the boom, a first driving member for driving the mounting frame to rotate is provided on the boom, an installation station for installing the mold is provided in the mounting frame, a chassis is vertically lifted and installed on the inner bottom wall of the installation station, a second driving member for driving the chassis to be lifted and lowered is provided on the mounting frame, a first clamping assembly for clamping the mold is horizontally slidably installed on both sides of the chassis on the inner bottom wall of the mounting frame, a lifting frame is slidably installed in the vertical direction inside the mounting frame, a third driving member for driving the lifting frame to lift and lower relative to the mounting frame is provided on the mounting frame, and a second clamping assembly for clamping the pouring cup is provided on the lifting frame.

[0008] Furthermore, the first driving member includes a first driving motor, a rotating shaft is provided at one end of the boom close to the mounting frame, the rotating shaft is rotatably connected to the mounting frame, the first driving motor is fixedly arranged on the mounting frame, and the output shaft of the first driving motor is gear-connected to the rotating shaft.

[0009] Furthermore, the first clamping assembly includes two first sliders symmetrically arranged on both sides of the chassis and horizontally slidably connected to the mounting frame along the same straight line direction, two connecting rods parallel to each other and connected one-to-one with the two first sliders, and a first driving cylinder. The piston rod of the first driving cylinder is fixedly connected to the end of any one of the connecting rods, and the piston rod of the first driving cylinder extends and retracts along the sliding direction of the first slider. A transmission gear is provided between the two connecting rods, and the two sides of the transmission gear are respectively engaged with the two connecting rods.

[0010] Furthermore, the second driving member includes a screw rod, a sleeve and a second driving motor. The lifting frame is vertically slidably connected to the mounting frame, the screw rod is vertically rotationally connected to the mounting frame, the sleeve is fixedly connected to the lifting frame, the second driving motor is arranged on the mounting frame and is used to drive the screw rod to rotate, and the sleeve is threadedly sleeved on the screw rod.

[0011] Furthermore, the second clamping assembly includes two symmetrically arranged clamping rods, and a clamping groove adapted to the pouring cup is provided on the side wall of the clamping rod facing the other clamping rod. Two second driving cylinders are provided on the lifting frame, and the piston rods of the two second driving cylinders are respectively fixedly connected to the two clamping rods. The two second driving cylinders are used to drive the two clamping rods to move closer or farther away synchronously.

[0012] Furthermore, an air channel is provided in the clamping rod, one end of the air channel is communicated with the clamping groove, and the other end is connected to an external air compressor.

[0013] Furthermore, a flexible layer is provided on the inner wall of the clamping groove.

[0014] Furthermore, a plurality of installation stations are spaced apart along the length direction of the installation frame.

[0015] In a second aspect, a mold shell cleaning method is provided, which is applied to a mold shell cleaning and fixing device provided in the first aspect, comprising the following steps:

[0016] The mold shell and pouring cup are assembled in place, and a sealing layer is applied to the bottom opening of the mold shell;

[0017] Lift the mold shell and place it into the installation frame, then clamp and fix the mold shell on the installation frame. Lower the lifting frame in the installation frame until it is flush with the pouring cup, and clamp and fix the pouring cup.

[0018] The upper chassis of the mounting frame is raised, the bottom opening of the mold shell is closed, and then water is poured into the mold shell from the pouring cup;

[0019] After the mold shell is filled with water to the specified height, the water pipe is pulled out and the mounting frame is rotated back and forth relative to the boom to clean the inner wall of the mold shell;

[0020] The installation frame continues to swing for 4-5 minutes, then stops swinging, and the chassis descends to release the water in the mold shell. The mold shell and pouring cup are removed from the installation frame to complete the cleaning of the mold shell and pouring cup.

[0021] Furthermore, the installation frame swings back and forth relative to the boom, wherein the swing amplitude of the installation frame is 0° to ±30°, and the swing rate of the installation frame is 0.2 to 0.3 rad / s.

[0022] The beneficial effects of the present invention are as follows: by using the first clamping assembly on the mounting frame to fix the mold shell, and the second clamping assembly on the lifting frame to fix the pouring cup, and then filling the mold shell with water, and swinging the mounting frame as a whole back and forth relative to the boom, the water in the mold shell cleans the inner wall of the mold shell, and the shell mold can be fixed intact, and no offset or shaking will occur during the flipping and movement; the problems of loose mold shell and wear and falling of pouring cup during the cleaning process are solved, defects of castings are avoided, and the qualified rate of products is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the planar structure of the mold shell cleaning device of Example 1 of the present application.

[0024] Figure 2 This is a schematic structural diagram of the connection between the boom and the mounting frame of Example 1 of the present application.

[0025] Figure 3 This is a schematic diagram of the partial structure of the first clamping component on the mounting frame of Example 1 of the present application.

[0026] Figure 4 This is a schematic diagram of the connection structure between the installation frame and the lifting frame of Example 1 of the present application.

[0027] Figure 5This is a schematic diagram of the process steps of the mold shell cleaning method of Example 2 of the present application.

[0028] Among them, 1. the traveling frame; 11. the boom; 2. the mounting frame; 21. the first driving member; 211. the first driving motor; 212. the rotating shaft; 22. the chassis; 23. the second driving member; 3. the first clamping assembly; 31. the first slider; 32. the connecting rod; 33. the first driving cylinder; 34. the transmission gear; 4. the lifting frame; 41. the third driving member; 411. the screw rod; 412. the sleeve; 413. the second driving motor; 5. the second clamping assembly; 51. the clamping rod; 52. the clamping groove; 53. the second driving cylinder; 54. the air duct; 6. the mold shell; 7. the pouring cup. DETAILED DESCRIPTION

[0029] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0030] Example 1

[0031] The embodiment of the present application discloses a mold shell cleaning and fixing device. Figure 1 、 Figure 2 and Figure 3 , including a boom 11, a mounting frame 2 and a lifting frame 4. The boom 11 is in an "L" shape. There are two booms 11, which are symmetrically arranged on the row frame 1. The top ends of the two booms 11 are slidably connected to the row frame 1 along the length direction of the row frame 1. The ends of the bottom horizontal cross bars of the two booms 11 are opposite to each other and are rotatably connected to the side walls of the mounting frame 2. The boom 11 is provided with a first driving member 21 for driving the mounting frame 2 to rotate. The lifting frame 4 is located in the mounting frame 2, and the mounting frame 2 is provided with a second driving member 23 for driving the lifting frame to vertically lift relative to the mounting frame 2. An installation station for installing the mold shell 6 is provided between the inner bottom wall of the mounting frame 2 and the lifting frame 4. In the embodiment of the present application, a plurality of installation stations are provided along the length direction of the mounting frame 2, so that a plurality of mold shells 6 can be cleaned at the same time, thereby improving the cleaning efficiency of the mold shell 6.

[0032] Specifically, in the installation station, a chassis 22 is vertically slidably installed on the inner bottom wall of the installation frame 2. The chassis 22 is used to block the bottom opening of the mold shell 6. The installation frame 2 is provided with a second driving member 23 for driving the chassis 22 to rise and fall. A first clamping assembly 3 is also installed on both sides of the chassis 22 on the inner bottom wall of the installation frame 2 for clamping and fixing the mold shell 6. A second clamping assembly 5 for clamping the pouring cup 7 is also provided on the lifting frame 4 in addition to the first clamping assembly 3.

[0033] After the operator places the mold shell 6 at the installation position on the installation frame 2, he starts the second driving member 23 to drive the chassis 22 to rise to close the bottom opening of the mold shell 6. Then, water is injected into the mold shell 6 from the top, and the lifting frame 4 is lowered to the vicinity of the pouring cup 7, and the pouring cup 7 is clamped and fixed. The first driving member 21 can be used to drive the installation frame 2 as a whole to swing back and forth on the boom 11. The bottom of the mold shell 6 can be kept closed by the chassis 22, and the pouring cup 7 and the mold shell 6 can be kept relatively fixed by the first clamping assembly 3 and the second clamping assembly 5. During the shaking process of the installation frame 2, the water in the mold shell 6 can clean the inside of the mold shell 6 and effectively prevent the pouring cup 7 from colliding with the mold shell 6, thereby providing better protection for the pouring cup 7 and the mold shell 6.

[0034] Reference Figure 2 and Figure 3 In the embodiment of the present application, a rotating shaft 212 is horizontally fixedly connected to the end of the boom 11 near the mounting frame 2. The rotating shaft 212 is rotatably connected to the mounting frame 2. The first drive member 21 can be a first drive motor 211. The first drive motor 211 is fixed to the mounting frame 2 by bolts. The output end of the first drive motor 211 is engaged with the rotating shaft 212 through a gear. The first drive motor 211 can be a bidirectional servo motor. The output shaft of the first drive motor 211 is rotated forward and reversely to cause the mounting frame 2 to swing back and forth relative to the boom 11.

[0035] The second driving member 23 can be a third driving cylinder, which is fixedly mounted on the mounting frame 2 by bolts. The piston rod of the third driving cylinder is fixedly connected to the chassis 22. The third driving cylinder can drive the chassis 22 to rise and fall on the mounting frame 2, and can stably maintain the assembled state of the chassis 22 and the mold shell 6.

[0036] The first clamping assembly 3 can include at least two first sliders 31. In the embodiment of the present application, there are two first sliders 31. The two first sliders 31 are symmetrically distributed on both sides of the chassis 22 and are horizontally slidably connected to the mounting frame 2. A connecting rod 32 is fixedly connected to each of the two first sliders 31. The connecting rod 32 is parallel to the long side of the mounting frame 2. The connecting rod 32 is simultaneously connected to the first sliders 31 on the same side of multiple installation stations. A transmission gear 34 is also provided between the two connecting rods 32. A rack that cooperates with the transmission gear 34 is provided on the surface of the two connecting rods 32 that faces each other. Both sides of the transmission gear 34 are respectively engaged with the two connecting rods 32. A first drive cylinder 33 is fixedly installed on the mounting frame 2 by bolts. The piston rod of the first drive cylinder 33 is fixedly connected to the end of any one of the connecting rods 32.

[0037] A connecting rod 32 is driven by the first driving cylinder 33 to move. After being transmitted by the transmission gear 34, the two connecting rods 32 move in opposite directions relative to each other, so that the two first sliders 31 on the installation position can be synchronously approached to clamp the mold shell 6 or synchronously moved away to loosen the mold shell 6. The mold shells 6 on multiple installation positions can be synchronously clamped at the same time, ensuring that the mold shell 6 is stably fixed on the installation frame 2, and the operation is convenient.

[0038] Reference Figure 4 In the embodiment of the present application, the third driving member 41 includes a screw rod 411, a sleeve 412 and a second driving motor 413. A slide rail extends vertically upward on the inner top wall of the mounting frame 2, and the two ends of the lifting frame 4 are connected to the slide rail vertically through the slider. The screw rod 411 is rotatably connected to the mounting frame 2 and is parallel to the slide rail. The second driving motor 413 is fixedly mounted on the mounting frame 2 by bolts. The output shaft of the second driving motor 413 is coaxially connected to one end of the screw rod 411 through a coupling. The sleeve 412 can be fixedly connected to the lifting frame 4 by welding, and the sleeve 412 is simultaneously threadedly sleeved with the screw rod 411. The second driving motor 413 can be a bidirectional servo motor. The output shaft of the second driving motor 413 rotates forward and reversely to drive the screw rod 411 to rotate, thereby causing the sleeve 412 and the lifting frame 4 to vertically rise and fall under the guidance of the slide rail. In other embodiments, the second driving member 23 can also adopt structures such as a cylinder, a belt elevator, and a screw rod 411 elevator.

[0039] In the embodiment of the present application, the second clamping assembly 5 includes two clamping rods 51 and two second drive cylinders 53. The two clamping rods 51 are symmetrical to each other and are parallel to the long side of the mounting frame 2. Clamping grooves 52 that adapt to the shape of the side wall of the pouring cup 7 are respectively opened on the side walls of the two clamping rods 51 corresponding to each installation station. The two second drive cylinders 53 are respectively located on the outside of the two clamping rods 51. Both drive cylinders can be fixed to the lifting frame 4 by bolts. The extension direction of the piston rods of the second drive cylinders 53 is horizontal and perpendicular to the length direction of the clamping rods 51. The piston rods of the two second drive cylinders 53 are respectively fixedly connected to the two clamping rods 51. By simultaneously starting the two second driving cylinders 53, the two clamping rods 51 are pushed closer to each other to clamp and fix the pouring cup 7 on the upper part of the mold shell 6 at the installation station. This allows the pouring cup 7 to remain stationary with the mold shell 6 during the rotation and shaking of the installation frame 2, effectively avoiding contact between the pouring cup 7 and the mold shell 6 and ensuring the structural integrity of the pouring cup 7 and the mold shell 6.

[0040] Furthermore, an air duct 54 is provided in the clamping rod 51, one end of the air duct 54 is connected to the inner wall of the clamping groove 52, and the other end of the air duct 54 is connected to the air compressor through a hose or other pipe fittings. After the clamping rod 51 clamps the pouring cup 7, the air compressor is used to evacuate air, which can make the opening of the air duct 54 at the clamping groove 52 generate negative pressure, so as to stably fix the pouring cup 7 in the clamping groove 52, thereby improving the fixing effect of the pouring cup 7.

[0041] Furthermore, a flexible layer is provided on the inner wall of the clamping groove 52 of the clamping rod 51, where it contacts the pouring cup 7. The flexible layer can be made of silicone, foam, or an air cushion. In the embodiment of the present application, the flexible layer is made of rubber. The addition of the flexible layer prevents the clamping rod 51 from scratching the outer wall of the pouring cup 7.

[0042] The implementation principle of a mold shell cleaning and fixing device in an embodiment of the present application is as follows: when cleaning the mold shell 6, the opening of the mold shell 6 is placed downward on the mounting frame 2, and the chassis 22 in the mounting frame 2 is driven to rise to seal the bottom opening of the mold shell 6, and at the same time, the two first sliders 31 on the mounting frame 2 are driven to slide and clamp the mold shell 6, then water is filled into the interior of the mold shell 6, and the lifting frame 4 is lowered to the height of the pouring cup 7, and the two clamping rods 51 on the lifting frame 4 are driven to approach synchronously to clamp the pouring cup 7, and then, the mounting frame 2 is driven to swing back and forth relative to the boom 11, so that the water in the mold shell 6 can clean the inner wall of the mold shell 6. During the cleaning process, the mold shell 6 and the pouring cup 7 remain in a fixed state, which effectively prevents the two from colliding with each other, avoids inclusion defects in the casting, and improves the qualified rate of the product.

[0043] Example 2

[0044] Reference Figure 5 , an embodiment of the present application also discloses a mold shell cleaning method, which is applied to a mold shell cleaning and fixing device provided in Example 1 of the present application.

[0045] The following steps are involved:

[0046] S01. Assemble the mold shell 6 and the pouring cup 7 into place, and cover the bottom opening of the mold shell 6 with a sealing leather layer. The sealing leather layer can be made of rubber or leather. The purpose is to fill the gap between the mold shell 6 and the chassis 22 when the chassis 22 rises to close the bottom wall of the mold shell 6, thereby improving the sealing effect of the bottom opening of the mold shell 6.

[0047] S02. Lift the mold shell 6 and place it into the installation frame 2, and clamp the mold shell 6 on the installation frame 2. The lifting frame 4 in the installation frame 2 is lowered to be flush with the pouring cup 7, and the pouring cup 7 is clamped and fixed.

[0048] S03. Raise the upper chassis 22 of the installation frame 2, close the bottom opening of the mold shell 6, and then inject water into the mold shell 6 from the pouring cup 7. During the water injection process, install a water level sensor on the outside of the water outlet of the water injection pipe to measure the water level in the mold shell 6. The water level in the mold shell 6 should not exceed two-thirds of the volume of the mold shell 6 to ensure that the water in the mold shell 6 can hit more than 80% of the inner wall of the mold shell during the swinging of the installation frame 2.

[0049] S04. After water is filled into the formwork 6 to a specified height, the water pipe is pulled out, and the mounting frame 2 rotates back and forth relative to the boom 11 to clean the inner wall of the formwork 6. The swing amplitude of the mounting frame 2 is 0° to ±30°, and the swing rate of the mounting frame 2 is 0.2 to 0.3 rad / s.

[0050] S05. The mounting frame 2 continues to swing for 4-5 minutes, and then stops swinging. The chassis 22 descends to release the water in the mold shell 6, and the mold shell 6 and the pouring cup 7 are removed from the mounting frame 2 to complete the cleaning of the mold shell 6 and the pouring cup 7.

[0051] Those skilled in the art will appreciate that while preferred embodiments of the present invention have been described, further variations and modifications may be made to these embodiments once those skilled in the art are aware of the underlying inventive concepts. Therefore, the appended claims are intended to be interpreted as encompassing the preferred embodiments and all variations and modifications that fall within the scope of the present invention. Clearly, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, the present invention is intended to encompass such modifications and variations as fall within the scope of the claims and their equivalents.

Claims

1. A mold shell cleaning and fixing device, characterized in that: The invention comprises a boom (11) that moves on a rack (1), a mounting frame (2) that is rotatably provided below the boom (11), a first driving member (21) for driving the mounting frame (2) to rotate being provided on the boom (11), an installation station for installing a mold shell (6) being provided inside the installation frame (2), a chassis (22) being vertically lifted and lowered being provided on the inner bottom wall of the installation station, a second driving member (23) for driving the chassis (22) to rise and fall being provided on the installation frame (2), and the chassis (22) being passed through the installation station. The mounting frame (2) is raised to form a sealed contact with the bottom opening of the mold shell (6), and a first clamping assembly (3) for clamping the mold shell (6) is horizontally slidably installed on both sides of the chassis (22) on the inner bottom wall of the mounting frame (2). A lifting frame (4) is slidably installed in the vertical direction inside the mounting frame (2), and a third driving member (41) is provided on the mounting frame for driving the lifting frame (4) to rise and fall relative to the mounting frame (2). A second clamping assembly (5) for clamping the pouring cup (7) is provided on the lifting frame (4). The first clamping assembly (3) comprises two first sliders (31) symmetrically arranged on both sides of the chassis (22) and horizontally slidably connected to the mounting frame (2) along the same straight line direction, and a synchronous transmission gear (34) connecting the two first sliders (31) to enable the two first sliders (31) to move synchronously in opposite directions; The second clamping assembly (5) comprises two symmetrically arranged clamping rods (51), and the lifting frame (4) is provided with a device for driving the two clamping rods (51) to move synchronously closer or farther away.

2. A mold shell cleaning and fixing device according to claim 1, characterized in that: The first driving member (21) comprises a first driving motor (211); a rotating shaft (212) is provided at one end of the boom (11) close to the mounting frame (2); the rotating shaft (212) is rotatably connected to the mounting frame (2); the first driving motor (211) is fixedly arranged on the mounting frame (2); and an output shaft of the first driving motor (211) is gear-connected to the rotating shaft (212).

3. A mold shell cleaning and fixing device according to claim 2, characterized in that: Two connecting rods (32) are parallel to each other and are connected to the two first sliders (31) in a one-to-one correspondence, and a first driving cylinder (33). The piston rod of the first driving cylinder (33) is fixedly connected to the end of any one of the connecting rods (32). The piston rod of the first driving cylinder (33) is extended and retracted along the sliding direction of the first slider (31). The transmission gear (34) is arranged between the two connecting rods (32). Both sides of the transmission gear (34) are respectively engaged with the two connecting rods (32).

4. A mold shell cleaning and fixing device according to claim 1, characterized in that: The second driving member (23) includes a screw rod (411), a sleeve (412) and a second driving motor (413); the lifting frame (4) is vertically slidably connected to the mounting frame (2); the screw rod (411) is vertically rotatably connected to the mounting frame (2); the sleeve (412) is fixedly connected to the lifting frame (4); the second driving motor (413) is arranged on the mounting frame (2) and is used to drive the screw rod (411) to rotate; the sleeve (412) is threadedly sleeved on the screw rod (411).

5. A mold shell cleaning and fixing device according to claim 1, characterized in that: A clamping groove (52) adapted to the pouring cup (7) is provided on the side wall of the clamping rod (51) facing the other clamping rod (51), and the piston rods of the two second driving cylinders (53) are fixedly connected to the two clamping rods (51) respectively.

6. A mold shell cleaning and fixing device according to claim 4, characterized in that: An air passage (54) is provided in the clamping rod (51), one end of the air passage (54) is communicated with the clamping groove (52), and the other end is connected to an external air compressor.

7. A mold shell cleaning and fixing device according to any one of claims 1 to 5, characterized in that: A flexible layer is provided on the inner wall of the clamping groove (52).

8. A mold shell cleaning and fixing device according to claim 1, characterized in that: A plurality of installation stations are arranged at intervals along the length direction of the installation frame (2).

9. A mold shell cleaning method, applied to a mold shell cleaning and fixing device according to any one of claims 1 to 8, characterized in that: The following steps are involved: The mold shell (6) and the pouring cup (7) are assembled in place, and a sealing layer is coated on the bottom opening of the mold shell (6); The mold shell (6) is lifted and placed into the installation frame (2), and the mold shell (6) is clamped and fixed on the installation frame (2); the lifting frame (4) in the installation frame (2) is lowered to be flush with the pouring cup (7), and the pouring cup (7) is clamped and fixed; The upper chassis (22) of the mounting frame (2) is raised to close the bottom opening of the mold shell (6), and then water is poured into the mold shell (6) from the pouring cup (7); After water is injected into the mold shell (6) to a specified height, the water pipe is drawn out, and the mounting frame (2) reciprocates relative to the boom (11) to clean the inner wall of the mold shell (6); The mounting frame (2) continues to swing for 2-5 minutes, and the mounting frame (2) stops swinging, and the chassis (22) descends to release the water in the mold shell (6), and the mold shell (6) and the pouring cup (7) are removed from the mounting frame (2), completing the cleaning of the mold shell (6) and the pouring cup (7).

10. A mold shell cleaning method according to claim 9, characterized in that: The mounting frame (2) swings back and forth relative to the boom (11), wherein the swing amplitude of the mounting frame (2) is 0° to ±30°, and the swing rate of the mounting frame (2) is 0.2 to 0.3 rad / s.

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