Four-station crucible outer wall cleaning system

By designing a four-station crucible outer wall cleaning system and utilizing an automated cleaning method using a roller conveyor and a rotating annular gear with a scraper, we have solved the problems of high labor intensity and low efficiency in manual cleaning in the existing technology, and achieved efficient and accurate automated cleaning. Effect.

CN222369884UActive Publication Date: 2025-01-21HUANGHE VIBERATION MACHINERY & EQUIP PLANT XINXIANG
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Patent Information

Application Number
CN202423091968.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-16
Publication Date
2025-01-21
Estimated Expiration
2034-12-16

AI Technical Summary

Technical Problem

The cleaning of the outer wall of the existing crucible relies on manual operations, which has high labor intensity, low efficiency, low completion, and will generate dust to cause burden on the health of the staff.

Method used

A four-station crucible outer wall cleaning system is designed, which uses a roller conveyor device and a rotating ring gear with a scraper for automatic cleaning, and realizes automated operation through a PLC control system.

Benefits of technology

It achieves efficient and precise automated cleaning of the outer wall of the crucible, reduces the labor intensity and dust exposure of manual operations, and improves cleaning efficiency and completion.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a four-station crucible outer wall cleaning system, which relates to the technical field of crucible cleaning and comprises a feeding support and a discharging support, roller conveying devices are erected in the feeding support and the discharging support, a crucible body is placed at the upper end of each roller conveying device, and the lower end of each roller conveying device is provided with a roller conveying device. The multiple roller conveying devices run independently, the feeding support and the discharging support are arranged on the left sides and the right sides of the multiple roller conveying devices correspondingly, and the left sides and the right sides of the four roller conveying devices in the middle are connected with outer protection shells through supporting plates correspondingly. All the roller conveying devices, the driving devices, the electric telescopic rods and the crucible positioning limiters are controlled by the PLC control system to complete automatic cleaning of the crucible bodies, and the outer walls of the four crucible bodies can be cleaned at a time, so that the automatic cleaning device is more accurate and efficient; and in the cleaning process, the opening in the upper end of the crucible body can be sealed by the disc, and the influence on the interior of the crucible is avoided.
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Description

Technical Field

[0001] The utility model relates to the technical field of crucible cleaning, in particular to a four-station crucible outer wall cleaning system. Background Art

[0002] Crucible is a container for melting and refining liquid metal, as well as solid-liquid heating and reaction. After sintering the material, the surface of the crucible will inevitably be contaminated with residues of the material. If it is not cleaned in time, it will affect the quality and performance of subsequent products.

[0003] After the existing crucible is discharged, the auxiliary materials adhering to the outer wall of the crucible are cleaned manually. This process is not only labor-intensive, but also has low efficiency and completion of manual cleaning. In addition, a certain amount of dust is generated during the cleaning process, which puts a certain burden on the workers. Utility Model Content

[0004] The utility model aims to provide a four-station crucible outer wall cleaning system to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a four-station crucible outer wall cleaning system, comprising a feeding bracket and a discharging bracket, wherein roller conveyors are arranged inside the feeding bracket and the discharging bracket, a crucible body is placed on the upper end of the roller conveyors, the roller conveyors are connected end to end and operate independently of each other, the discharging bracket and the feeding bracket are respectively arranged on the left and right sides of the plurality of roller conveyors, the left and right sides of the four middle roller conveyors are connected with outer protective shells through support plates, two first electric telescopic rods are installed on the outer side of a single support plate, a lifting plate is commonly installed on the upper ends of the four first electric telescopic rods, a through hole is opened on the upper end of the lifting plate, a rotating ring gear is rotatably connected to the lower end of the lifting plate and located at the edge of the through hole, a plurality of scrapers are installed in an array on the lower end of the rotating ring gear, and the lifting plate A second driving device is installed at the edge position, and the output end of the second driving device is meshed with the rotating ring gear through a gear, and three second electric telescopic rods distributed in a triangular array are installed on the upper end of the lifting plate, and a first fixed plate is commonly installed on the upper ends of the three second electric telescopic rods, and three support rods distributed in a triangular array are installed on the upper end of the first fixed plate, and a second fixed plate is commonly installed on the upper ends of the three support rods, the second fixed plate is fixedly connected to the outer protective shell, and the upper end of the second fixed plate is installed with a first driving device, and a driven telescopic rod is installed on the lower output end of the first driving device, and the lower end of the driven telescopic rod passes through the first fixed plate and is connected with a circular disk, and the circular disk is located in the through hole inside the lifting plate, and a limiting inclined plate arranged obliquely inward is installed in a circular array at the lower end of the circular disk, and both the first driving device and the second driving device are connected to an external PLC control system.

[0006] Preferably, the roller conveying device includes a conveying roller, a driven gear group, a crawler device, a driving gear group and a driving motor. The driving motor is fixedly installed under the conveying roller through a bracket. The output end of the driving motor is installed with a driving gear group. One end of the conveying roller is installed with a driven gear group. A crawler device is commonly installed on the surface of one of the driving gear groups and multiple driven gear groups. The crawler device is limited by the driving gear group and multiple driven gear groups.

[0007] Preferably, a feeding tray is installed inside the feeding bracket at a position on one side of the roller conveyor device, and a discharging tray is installed inside the discharging bracket at a position on the other side of the roller conveyor device.

[0008] Preferably, two support rods are provided inside the feed bracket, an electric push rod is installed on the inner side of each of the two support rods, a first lifting bracket is commonly installed on the upper ends of the two electric push rods, the first lifting bracket is slidably connected to the inner sides of the two support rods, and the first lifting bracket is located on the side of the feed tray away from the roller conveyor device.

[0009] Preferably, two support rods are also provided inside the discharging bracket, and an electric push rod is installed at the inner side of the two support rods, and a second lifting bracket is commonly installed on the upper ends of the two electric push rods, and the second lifting bracket is located on the side of the discharging tray away from the roller conveyor device, and two hydraulic rods are installed on the side of the first lifting bracket and the second lifting bracket away from the roller conveyor device, and a movable plate is commonly installed on the output ends of the two hydraulic rods, and four arc grooves are opened on the end of the movable plate facing the roller conveyor device, and the size of the arc groove is adapted to the size of the crucible body.

[0010] Preferably, an inclined residue belt collecting box is installed underneath the four outer protective shells, a dust-free crucible adhesion belt conveyor is installed underneath the residue belt collecting box, another dust-free crucible adhesion belt conveyor is installed at one end of the dust-free crucible adhesion belt conveyor, and a crucible outer wall adhesion material loading and packaging machine is installed at the end of the other dust-free crucible adhesion belt conveyor.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The four-station crucible outer wall cleaning system uses a forklift to transport multiple crucible bodies to the upper end of the roller conveyor inside the feed bracket in sequence, and the multiple crucible bodies are transported by the roller conveyor. When a crucible body moves to the inside of an outer protective shell away from the feed bracket, the three second electric telescopic rods will drive the disc to descend, and the disc drives multiple limiting inclined plates to enter the inside of the crucible body, and the crucible body is limited by the inclined surface of the limiting inclined plates. At this time, the PLC control system will control a roller conveyor inside the outer protective shell to stop running, and detect the three crucible bodies through the other three outer protective shells in sequence, and then control all the roller conveyors to stop running through the PLC control system, start the second drive device, the second drive device with gear rotates, and drives the rotating ring gear to rotate, and the rotating ring gear drives the scraper below to rotate synchronously, and then start the multiple first electric telescopic rods to descend, driving the lifting plate and the rotating ring gear to The crucible bodies are automatically cleaned by the PLC control system, and the adhesion residues on the outer wall of the crucible body will fall from the gap of the driven roller conveyor device to the inclined residue belt collection box below for collection, and will be transported to the crucible outer wall adhesion material loading and packaging machine through the dust-free crucible adhesion material belt conveyor installed under the residue belt collection box for packaging. The automatic cleaning of the crucible body is completed by the operation of the components controlled by the PLC control system, and the outer wall cleaning of four crucible bodies can be completed at one time, which is not only more accurate and efficient, but also the upper end opening of the crucible body will be closed by the disc during the cleaning process to avoid affecting the inside of the crucible. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the drive device and the rotary cutter of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the positioning roller conveyor belt of the utility model;

[0016] Figure 4 This is a schematic diagram of the internal structure of the feeding bracket of the utility model;

[0017] Figure 5 This is a schematic diagram of the internal structure of the discharging bracket of the utility model;

[0018] Figure 6It is a position and orientation diagram of the dust-free crucible adhesion material belt conveyor and the crucible outer wall adhesion material loading and unloading machine of the utility model;

[0019] Figure 7 It is a schematic structural diagram of the scraper and the rotating ring gear of the utility model.

[0020] In the figure: 1, feeding bracket; 2, feeding tray; 3, crucible body; 4, roller conveyor; 401, conveying roller; 402, driven gear set; 403, crawler device; 404, driving gear set; 405, driving motor; 5, outer protective shell; 6, residue belt collection box; 7, discharging bracket; 8, first lifting bracket; 9, support plate; 10, first electric telescopic rod; 11, lifting plate; 12, first driving device; 13, second electric Telescopic rod; 14. first fixed plate; 15. supporting rod; 16. second fixed plate; 17. driven telescopic rod; 18. limiting inclined plate; 19. electric push rod; 20. second lifting bracket; 21. hydraulic rod; 22. arc groove; 23. discharge tray; 24. dust-free crucible adhesion material belt conveyor; 25. crucible outer wall adhesion material loading and packaging machine; 26. moving plate; 27. supporting rod; 28. second driving device; 29. ​​rotating ring gear; 30. scraper. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions 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 a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] like Figures 1 to 7As shown, the four-station crucible outer wall cleaning system of this embodiment includes a feed bracket 1 and a discharge bracket 7. The internal structures of the feed bracket 1 and the discharge bracket 7 are consistent, but the discharge tray 23 and the feed tray 2 are placed in opposite directions. A roller conveyor 4 is set inside the feed bracket 1 and the discharge bracket 7. A crucible body 3 is placed on the upper end of the roller conveyor 4. The roller conveyor 4 is connected end to end and operates independently of each other. The roller conveyor 4 can drive the crucible body 3 to move from the feed bracket 1 to the inside of the discharge bracket 7. The discharge bracket 7 and the feed bracket 1 are respectively arranged on the left and right sides of the multiple roller conveyor devices 4, and the left and right sides of the four middle roller conveyor devices 4 are connected to the outer protective shell 5 through the support plate 9, as shown Figure 1 As shown, four outer protective shells 5 cover the outside of four roller conveying devices 4, two first electric telescopic rods 10 are installed on the outer side of the support plate 9, and a lifting plate 11 is installed on the upper ends of the four first electric telescopic rods 10. A through hole is opened on the upper end of the lifting plate 11, and a rotating ring gear 29 is rotatably connected to the lower end of the lifting plate 11 and located at the edge of the through hole. A plurality of scrapers 30 are installed in an array at the lower end of the rotating ring gear 29. A second driving device 28 is installed at the edge of the lifting plate 11, and the output end of the second driving device 28 is connected to the gear The second driving device 28 is meshed and connected with the rotating ring gear 29. When the second driving device 28 is running, it will drive the gear to rotate, and the gear drives the rotating ring gear 29 to rotate. The rotating ring gear 29 drives the scraper 30 to rotate. The lifting plate 11 and the rotating ring gear 29 can be driven to descend synchronously through the four first electric telescopic rods 10. When the rotating ring gear 29 descends, it will cover the outside of the crucible body 3 and drive the scraper 30 to clean the attachments on the outer wall of the crucible body 3. The upper end of the lifting plate 11 is equipped with three second triangular arrays. The electric telescopic rod 13, the upper ends of the three second electric telescopic rods 13 are commonly installed with a first fixed plate 14, the upper end of the first fixed plate 14 is installed with three support rods 15 distributed in a triangular array, the upper ends of the three support rods 15 are commonly installed with a second fixed plate 16, the second fixed plate 16 is fixedly connected to the outer protective shell 5, the upper end of the second fixed plate 16 is installed with a first driving device 12, the lower side output end of the first driving device 12 is installed with a driven telescopic rod 17, the lower end of the driven telescopic rod 17 passes through the first fixed plate 14 and is connected with a circular plate, the circular plate The disk is located in the through hole inside the lifting plate 11, and the circular array at the lower end of the disk is installed with a limiting inclined plate 18 arranged obliquely inward. When the crucible body 3 moves to the inside of the outer protective shell 5, it should be noted that the crucible body 3 inside the outer protective shell 5 farthest from the feeding bracket 1 must be limited, and then the other outer protective shells 5 are opened in turn to limit the crucible body 3. The time when the crucible bodies 3 of the four outer protective shells 5 are limited is sorted from far to near. The first drive device 12 and the second drive device 28 are both connected to the external PLC control system.

[0024] Specifically, the roller conveying device 4 includes a conveying roller 401, a driven gear set 402, a crawler device 403, a driving gear set 404 and a driving motor 405. The driving motor 405 is fixedly installed under the conveying roller 401 through a bracket. The output end of the driving motor 405 is installed with a driving gear set 404, and one end of the conveying roller 401 is installed with a driven gear set 402. The surfaces of a driving gear set 404 and multiple driven gear sets 402 are jointly installed with a crawler device 403. The crawler device 403 is limited by the driving gear set 404 and the multiple driven gear sets 402. The driving motor 405 is a common servo motor on the market. The driving motor 405 drives the driving gear set 404 to rotate, and the driving gear set 404 drives the crawler device 403 to run. The crawler device 403 drives the multiple driven gear sets 402 to rotate through friction, and the multiple driven gear sets 402 drive the multiple conveying rollers 401 to roll.

[0025] Furthermore, a feeding tray 2 is installed inside the feeding bracket 1 at a position on one side of the roller conveyor 4, and the crucible body 3 is transported to the upper end of the feeding tray 2 by a forklift. A discharging tray 23 is installed inside the discharging bracket 7 at a position on the other side of the roller conveyor 4. The cleaned crucible body 3 will be placed on the upper end of the discharging tray 23 and transported to external storage by a forklift. Two support rods 27 are arranged inside the feeding bracket 1, and an electric push rod 19 is installed inside the two support rods 27. A first lifting bracket 8 is installed together at the upper ends of the two electric push rods 19. The first lifting bracket 8 is slidably connected to the inner sides of the two support rods 27. The first lifting bracket 8 is located on the side of the feeding tray 2 away from the roller conveyor 4. Two support rods 27 are also arranged inside the discharging bracket 7, and an electric push rod 19 is installed inside the two support rods 27. A second lifting bracket 20 is installed together at the upper ends of the two first electric push rods 19. The second lifting bracket 20 is located on the side of the discharging tray 23 away from the roller conveyor 4. Two hydraulic rods 21 are installed on the side of the frame 8 and the second lifting support 20 away from the roller conveyor 4, and a movable plate 26 is installed together at the output ends of the two hydraulic rods 21. Four arc grooves 22 are opened on the end of the movable plate 26 facing the roller conveyor 4. The size of the arc groove 22 is adapted to the size of the crucible body 3. The forklift transports the crucible body 3 to the upper end of the feeding tray 2, and the second lifting support 20 is driven by two electric push rods 19 to move longitudinally to the horizontal side of multiple crucible bodies 3. The two hydraulic rods 21 drive the movable plate 26 to move in the direction of the crucible body 3. Through the coordinated use of the arc grooves 22, the four crucible bodies 3 are pushed from the surface of the feeding tray 2 to the upper end of the roller conveyor 4. Similarly, when the crucible body 3 is cleaned, it will move to the inside of the discharging support 7, and the first lifting support 8 is driven by the electric push rod 19 to move longitudinally, and the movable plate 26 is driven by the hydraulic rod 21 to move horizontally, so as to push the crucible body 3 at the upper end of the roller conveyor 4 to the surface of the discharging tray 23.

[0026] Furthermore, an inclined residue belt collecting box 6 is installed underneath the four outer protective shells 5, and a dust-free crucible adhesion belt conveyor 24 is installed underneath the residue belt collecting box 6. The dust-free crucible adhesion belt conveyor 24 is the prior art. Another dust-free crucible adhesion belt conveyor 24 is installed at one end of the dust-free crucible adhesion belt conveyor 24, and a crucible outer wall adhesion material loading and packaging machine 25 is installed at the end of the other dust-free crucible adhesion belt conveyor 24. The adhesion residue inside the crucible body 3 will fall from the gap of the driven roller conveyor 4 to the inclined residue belt collecting box 6 below for collection, and will be transported to the inside of the crucible outer wall adhesion material loading and packaging machine 25 through the dust-free crucible adhesion belt conveyor 24 installed below the residue belt collecting box 6 for packaging.

[0027] The method of using this embodiment is as follows: a plurality of crucible bodies 3 are transported to the upper end of the roller conveyor 4 inside the feeding bracket 1 in sequence by a forklift, and a plurality of crucible bodies 3 are transported by the roller conveyor 4. When a crucible body 3 moves to the inside of the outer protective shell 5 away from the feeding bracket 1, the three second electric telescopic rods 13 will drive the disc to descend, and the disc will drive a plurality of limiting inclined plates 18 to enter the inside of the crucible body 3, and the crucible body 3 will be limited by the inclined surface of the limiting inclined plates 18. At this time, the PLC control system will control a roller conveyor 4 inside the outer protective shell 5 to stop running, and detect the three crucible bodies 3 through the other three outer protective shells 5 in sequence, and then control all the roller conveyors 4 to stop running through the PLC control system, start the second driving device 28, the second driving device 28 rotates with a gear, and drives the rotating ring gear 29 to rotate, and the rotating ring gear 29 drives the scraper 30 below to rotate synchronously, and then start the plurality of first electric telescopic rods 10 to descend synchronously, driving the lifting The plate 11 and the rotating ring gear 29 descend synchronously. During the descent process, the rotating ring gear 29 will drive the scraper 30 to rotate at the outer wall of the crucible body 3, thereby cleaning the outer wall of the crucible body 3. By timing, after the cleaning time reaches the specified time, the PLC control system will control the first electric telescopic rod 10 to reset and move away from the crucible body 3, and restart the multiple roller conveying devices 4, thereby automatically cleaning the subsequent crucible bodies 3. The adhesion residues on the outer wall of the crucible body 3 will fall from the gap of the driven roller conveying device 4 to the inclined residue belt collecting box 6 below for collection, and are transported to the crucible outer wall adhesion material loading and packaging machine 25 through the dust-free crucible adhesion belt conveyor 24 installed below the residue belt collecting box 6 for packaging. The automatic cleaning of the crucible body 3 is completed by the operation of the components controlled by the PLC control system, and the cleaning of four crucible bodies 3 can be completed at one time, which is not only more accurate and efficient, but also the upper end opening of the crucible body 3 will be closed by the disc during the cleaning process.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A four-station crucible outer wall cleaning system, comprising a feeding support (1) and a discharging support (7), characterized in that: A roller conveyor (4) is mounted inside the feeding bracket (1) and the discharging bracket (7), a crucible body (3) is placed on the upper end of the roller conveyor (4), the roller conveyor (4) is composed of a plurality of roller conveyor devices (4) connected end to end and independently operated, the discharging bracket (7) and the feeding bracket (1) are respectively arranged on the left and right sides of the plurality of roller conveyor devices (4), the left and right sides of the four middle roller conveyor devices (4) are connected to an outer protective shell (5) via a support plate (9), two first electric telescopic rods (10) are mounted on the outer side of a single support plate (9), a lifting plate (11) is commonly mounted on the upper ends of the four first electric telescopic rods (10), a through hole is formed at the upper end of the lifting plate (11), a rotating ring gear (29) is rotatably connected to the lower end of the lifting plate (11) and located at the edge of the through hole, a plurality of scrapers (30) are mounted in an array at the lower end of the rotating ring gear (29), a second driving device (28) is mounted at the edge of the lifting plate (11), the transmission of the second driving device (28) The output end is meshed and connected with a rotating ring gear (29) through a gear, and the upper end of the lifting plate (11) is mounted with three second electric telescopic rods (13) distributed in a triangular array, and the upper ends of the three second electric telescopic rods (13) are commonly mounted with a first fixed plate (14), and the upper end of the first fixed plate (14) is mounted with three support rods (15) distributed in a triangular array, and the upper ends of the three support rods (15) are commonly mounted with a second fixed plate (16), and the second fixed plate (16) is fixedly connected to the outer protective shell (5). The first drive device (12) is mounted on the upper end of the second fixed plate (16), a driven telescopic rod (17) is mounted on the lower output end of the first drive device (12), the lower end of the driven telescopic rod (17) passes through the first fixed plate (14) and is connected to a circular plate, the circular plate is located in a through hole inside the lifting plate (11), and a limiting inclined plate (18) arranged obliquely inward is mounted in a circular array at the lower end of the circular plate, and the first drive device (12) and the second drive device (28) are both connected to an external PLC control system.

2. The four-station crucible outer wall cleaning system according to claim 1, characterized in that: The roller conveying device (4) comprises a conveying roller (401), a driven gear set (402), a crawler device (403), a driving gear set (404) and a driving motor (405); the driving motor (405) is fixedly mounted below the conveying roller (401) via a bracket; the driving gear set (404) is mounted on the output end of the driving motor (405); the driven gear set (402) is mounted on one end of the conveying roller (401); a crawler device (403) is mounted on the surfaces of one driving gear set (404) and a plurality of driven gear sets (402); the crawler device (403) is defined by the driving gear set (404) and the plurality of driven gear sets (402).

3. The four-station crucible outer wall cleaning system according to claim 1, characterized in that: An infeed tray (2) is installed inside the infeed bracket (1) at a position on one side of the roller conveyor device (4), and an outfeed tray (23) is installed inside the outfeed bracket (7) at a position on the other side of the roller conveyor device (4).

4. The four-station crucible outer wall cleaning system according to claim 3, characterized in that: Two support rods (27) are arranged inside the feed bracket (1), an electric push rod (19) is installed inside the two support rods (27), and a first lifting bracket (8) is installed on the upper ends of the two electric push rods (19), the first lifting bracket (8) is slidably connected to the inner sides of the two support rods (27), and the first lifting bracket (8) is located on a side of the feed tray (2) away from the roller conveyor device (4).

5. The four-station crucible outer wall cleaning system according to claim 4, characterized in that: The discharge bracket (7) is also provided with two support rods (27), and an electric push rod (19) is installed at the inner side of the two support rods (27). A second lifting bracket (20) is installed at the upper ends of the two electric push rods (19). The second lifting bracket (20) is located on the side of the discharge tray (23) away from the roller conveyor (4). Two hydraulic rods (21) are installed on the side of the first lifting bracket (8) and the second lifting bracket (20) away from the roller conveyor (4). A movable plate (26) is installed at the output ends of the two hydraulic rods (21). Four arc grooves (22) are opened at one end of the movable plate (26) facing the roller conveyor (4), and the size of the arc grooves (22) is adapted to the size of the crucible body (3).

6. The four-station crucible outer wall cleaning system according to claim 1, characterized in that: A sloping residue belt collection box (6) is commonly installed below the four outer protective shells (5), a dust-free crucible adhesion belt conveyor (24) is installed below the residue belt collection box (6), another dust-free crucible adhesion belt conveyor (24) is installed at one end of the dust-free crucible adhesion belt conveyor (24), and a crucible outer wall adhesion material packing machine (25) is installed at the end of the other dust-free crucible adhesion belt conveyor (24).