Automatic edge trimming device for magnesite carbon brick production

CN224643139UActive Publication Date: 2026-08-18CHANGXING FUZILING SPECIAL FIRE RESISTANT
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Patent Information

Application Number
CN202522008804.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-18
Publication Date
2026-08-18
Estimated Expiration
2035-09-18

AI Technical Summary

Technical Problem

[0006]本实用新型的目的在于提供一种镁碳砖生产用自动修边装置,以解决上述背景技术中提出修边装置不便于对镁碳砖便捷的自动修边,不便于对镁碳砖多重修边,不便于修边装置在输送过程中对镁碳砖便捷的多重限位,镁碳砖在修边过程中容易发生位移,影响了对镁碳砖修边的效果,影响了镁碳砖批量修边的效率的问题

Benefits of technology

[0015]与现有技术相比,本实用新型的有益效果是:该修边装置不仅实现了修边装置对镁碳砖便捷的自动修边,方便了对镁碳砖多重修边,而且方便了修边装置在输送过程中对镁碳砖便捷的多重限位,避免了镁碳砖在修边过程中发生位移,提高了对镁碳砖修边的效果,提高了镁碳砖批量修边的效率:

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Abstract

The utility model discloses an automatic edge trimming device for magnesium -carbon brick production, including conveyer and support frame, the outside symmetry of conveyer is provided with two groups of support frame, the top of conveyer is installed with the equal interval multiple group main limiting frame, the top of support frame all slidingly installed has the moving frame, all installation has the lifting frame on the outer wall of moving frame, all slidingly installed have the lifting piece on the outer wall of lifting frame, the top of lifting frame all are installed with rotating motor. The utility model not only has realized the automatic edge trimming of the edge trimming device to magnesium -carbon brick convenient, has facilitated to magnesium -carbon brick multiple edge trimming, and has facilitated the multiple location of edge trimming device to magnesium -carbon brick convenient in the conveying process, avoided the displacement of magnesium -carbon brick in the edge trimming process, improved the effect of magnesium -carbon brick edge trimming, improved the efficiency of magnesium -carbon brick batch edge trimming.
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Description

Technical Field

[0001] This utility model relates to the field of trimming device technology, specifically an automatic trimming device for the production of magnesia-carbon bricks. Background Technology

[0002] Magnesia-carbon bricks are made from high-melting-point alkaline oxide magnesium oxide (melting point 2800℃) and high-melting-point carbon materials that are difficult to wet by slag, with the addition of various non-oxide additives. They are non-burning carbon composite refractory materials bonded together with carbonaceous binders. Currently, to improve the aesthetics and surface smoothness of magnesia-carbon bricks, the bricks are ground and trimmed. However, large, specialized trimming machines are bulky and inconvenient to move, while smaller polishing machines are inefficient.

[0003] As disclosed in CN218746737U, an automatic trimming device for producing high-performance magnesia-carbon bricks for steelmaking converters includes a trimming device body. A control button is fixedly installed on one side of the upper end face of the trimming device body. A magnesia-carbon brick pushing track that passes through the trimming device body is located at the middle position of the front end face of the trimming device body. A single-cylinder cylinder is fixedly installed on one side inside the magnesia-carbon brick pushing track. A pushing plate is fixedly provided on the front end face of the single-cylinder cylinder. A gear rotating groove is symmetrically provided on both sides inside the trimming device body. A bevel gear A is provided inside the gear rotating groove. The bevel gear A is transversely passed through from left to right by a rotating shaft. A small motor is connected to one end of the rotating shaft.

[0004] Although it achieves automatic grinding and trimming of the corners of magnesia-carbon bricks through the combination of a rotating structure and a single-cylinder, eliminating the need for manual operation and greatly increasing the grinding efficiency of workers.

[0005] However, the existing trimming devices of this type are not conducive to convenient automatic trimming of magnesia-carbon bricks, are not convenient for multiple trimming of magnesia-carbon bricks, are not convenient for multiple limiting of magnesia-carbon bricks during the conveying process, and are prone to displacement during the trimming process, which affects the trimming effect and the efficiency of batch trimming of magnesia-carbon bricks. Utility Model Content

[0006] The purpose of this utility model is to provide an automatic trimming device for the production of magnesia-carbon bricks, so as to solve the problems mentioned in the background art, such as the inconvenience of automatic trimming of magnesia-carbon bricks, the inconvenience of multiple trimming of magnesia-carbon bricks, the inconvenience of convenient multiple limiting of magnesia-carbon bricks during the conveying process, the easy displacement of magnesia-carbon bricks during the trimming process, which affects the trimming effect of magnesia-carbon bricks and the efficiency of batch trimming of magnesia-carbon bricks.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an automatic trimming device for magnesia-carbon brick production, comprising a conveyor and support frames. Two sets of support frames are symmetrically arranged on the outside of the conveyor. Multiple sets of equally spaced main limiting frames are installed at the top of the conveyor. A movable frame is slidably mounted on the top of each support frame. A lifting frame is installed on the outer wall of each movable frame. A lifting block is slidably mounted on the outer wall of each lifting frame. A rotary motor is installed at the top of each lifting frame. A hollow rotating shaft is installed at the output end of each rotary motor. A drive shaft is slidably mounted inside each hollow rotating shaft, extending to the outside of the hollow rotating shaft and movably connected to the lifting block. The drive shaft is located away from the lifting block. Each block has a grinding and trimming head installed at its bottom edge. Each support frame on one side of the movable frame has a servo motor installed at its top. Each servo motor has a movable threaded rod installed at its output end, and the movable threaded rod is movably connected to the support frame. Each movable threaded rod has a movable threaded sleeve fitted on its surface, and the movable threaded sleeve is connected to the movable frame. Each support frame on one side of the movable threaded sleeve has a limit rail symmetrically installed at its top edge. Each limit rail has a limit block symmetrically slidably installed at its top edge, and the limit block is connected to the movable frame. Each lifting frame on one side of the rotary motor has a lifting motor installed at its top edge. Each lifting motor has a lifting threaded rod installed at its output end, and the lifting threaded rod extends to the outside of the lifting frame and is movably connected to the lifting frame.

[0008] Preferably, the surface of the lifting threaded rod is fitted with a lifting threaded sleeve, and the lifting threaded sleeve is connected to the lifting block.

[0009] Preferably, slide rails are symmetrically installed on the outer wall of the lifting frame on one side of the lifting threaded rod, and sliders are symmetrically slidably installed on the outer wall of the slide rails, and the sliders are connected to the lifting block.

[0010] Preferably, each of the hollow rotating shafts has a sliding groove on the outer wall near the drive shaft, and a support key is installed on the outer wall of the drive shaft on the side of the sliding groove, and the support key is slidably connected to the sliding groove.

[0011] Preferably, power cylinders are symmetrically installed on the outer wall of the main limiting frame, and side limiting frames are installed on the output end of each power cylinder.

[0012] Preferably, side limiting rollers are movably installed on the outer wall of each side limiting frame, and springs are installed on the top of each main limiting frame.

[0013] Preferably, an upper limit frame is provided on the outside of the main limit frame on one side of the spring, and one end of the spring is connected to the main limit frame.

[0014] Preferably, the other end of the spring is connected to the upper limit frame, and the bottom end of the upper limit frame is movably equipped with an upper limit roller.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the trimming device not only realizes convenient automatic trimming of magnesia-carbon bricks, facilitating multiple trimming of magnesia-carbon bricks, but also facilitates convenient multiple limiting of magnesia-carbon bricks during the conveying process, preventing displacement of magnesia-carbon bricks during trimming, improving the trimming effect of magnesia-carbon bricks, and increasing the efficiency of batch trimming of magnesia-carbon bricks. (1) Place the magnesia-carbon bricks to be trimmed on the surface of the conveyor and turn on the conveyor to facilitate the movement of the magnesia-carbon bricks between the two sides of the grinding and trimming head under the limit of multiple sets of side limit rollers and upper limit rollers. The servo motor drives the moving threaded rod to rotate, the moving threaded rod drives the moving threaded sleeve to move, and the moving threaded sleeve drives the moving frame to move, so that the moving frame can easily move the lifting frame, lifting block, rotary motor, hollow rotating shaft, and drive shaft to one side of the magnesia-carbon bricks. The lifting motor drives the lifting threaded rod to rotate, the lifting threaded rod drives the lifting threaded sleeve to move, the lifting threaded sleeve drives the lifting block to move, and the lifting block drives the drive shaft to move inside the hollow rotating shaft. The support key slides inside the slide groove to provide sliding support for the drive shaft. The drive shaft drives the grinding and trimming head to move to the end. In the appropriate position, the rotary motor drives the hollow rotating shaft to rotate. Under the limit of the support key and the slide groove, the hollow rotating shaft drives the drive shaft to rotate. The lifting block provides movable support for the drive shaft. The drive shaft drives the grinding and trimming head to rotate, so that the two sets of grinding and trimming heads can perform preliminary rough trimming on the magnesia-carbon bricks. The magnesia-carbon bricks with rough trimming are moved to the other set of two grinding and trimming heads under the limit of multiple sets of side limit rollers and upper limit rollers, so as to facilitate the fine trimming of the magnesia-carbon bricks again. The trimmed magnesia-carbon bricks are moved to the next process by the conveyor. This realizes the convenient automatic trimming of magnesia-carbon bricks by the trimming device, which facilitates multiple trimming of magnesia-carbon bricks, improves the trimming effect of magnesia-carbon bricks, facilitates the trimming operation of magnesia-carbon bricks of different sizes, and improves the efficiency of batch trimming of magnesia-carbon bricks. (2) The power cylinder drives the side limit frame to move, and the side limit frame drives the side limit roller to move, so as to facilitate the movement of the two sets of side limit rollers to the surface of the magnesia-carbon brick, so as to facilitate the limit support of the magnesia-carbon brick. Under the support of the spring by the main limit frame, the spring elastically drives the upper limit frame to move, and the upper limit frame elastically drives the upper limit roller to press down, so as to facilitate the upper limit roller to press tightly down to the surface of the magnesia-carbon brick, so as to facilitate the elastic limit of the magnesia-carbon brick. This realizes the convenient multiple limit of the magnesia-carbon brick during the conveying process of the trimming device, and avoids the displacement of the magnesia-carbon brick during the trimming process, which affects the trimming effect of the magnesia-carbon brick. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of the present utility model; Figure 2 This is a three-dimensional structural diagram of the present invention; Figure 3This is a three-dimensional structural diagram of the support frame of this utility model; Figure 4 This is a three-dimensional structural diagram of the drive shaft of this utility model; Figure 5 This is a three-dimensional structural diagram of the mobile frame of this utility model; Figure 6 This is a three-dimensional structural diagram of the main limiting frame of this utility model; Figure 7 This is a three-dimensional structural diagram of the grinding and trimming head of this utility model; Figure 8 This is a three-dimensional structural diagram of the conveyor of this utility model.

[0017] In the diagram: 1. Conveyor; 2. Support frame; 3. Main limit frame; 4. Moving frame; 5. Lifting frame; 6. Lifting block; 7. Rotary motor; 8. Hollow rotating shaft; 9. Drive shaft; 10. Grinding and trimming head; 11. Servo motor; 12. Moving threaded sleeve; 13. Moving threaded rod; 14. Limiting block; 15. Limiting rail; 16. Lifting motor; 17. Lifting threaded rod; 18. Lifting threaded sleeve; 19. Slide rail; 20. Slider; 21. Slide groove; 22. Support key; 23. Power cylinder; 24. Side limit frame; 25. Side limit roller; 26. Spring; 27. Upper limit frame; 28. Upper limit roller. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] Example 1 Please see Figure 1-8 This utility model provides an embodiment of an automatic trimming device for magnesia-carbon brick production, comprising a conveyor 1 and a support frame 2. Two sets of support frames 2 are symmetrically arranged on the outside of the conveyor 1. Multiple sets of equally spaced main limit frames 3 are installed at the top of the conveyor 1. A movable frame 4 is slidably installed at the top of each support frame 2. A lifting frame 5 is installed on the outer wall of each movable frame 4. A lifting block 6 is slidably installed on the outer wall of each lifting frame 5. A rotary motor 7 is installed at the top of each lifting frame 5. A hollow rotating shaft 8 is installed at the output end of each rotary motor 7. A drive shaft 9 is slidably installed inside each hollow rotating shaft 8, extending to the outside of the hollow rotating shaft 8 and movably connected to the lifting block 6. A grinding and trimming head 10 is installed at the bottom end of each drive shaft 9 on the side away from the lifting block 6. A servo motor 11 is installed at the top of each support frame 2 on one side of the movable frame 4. A movable threaded rod 13 is installed at the output end of each servo motor 11, movably connected to the support frame 2. A movable threaded sleeve is fitted onto the surface of each movable threaded rod 13. 12. The movable threaded sleeve 12 is connected to the movable frame 4. Limiting rails 15 are symmetrically installed on the top of the support frame 2 on one side of the movable threaded sleeve 12. Limiting blocks 14 are symmetrically slidably installed on the top of the limiting rails 15, and the limiting blocks 14 are connected to the movable frame 4. Lifting motors 16 are installed on the top of the lifting frame 5 on one side of the rotary motor 7. Lifting threaded rods 17 are installed on the output end of the lifting motors 16, and the lifting threaded rods 17 extend to the outside of the lifting frame 5 and are movably connected to the lifting frame 5. The surface of the lifting threaded rod 17 is fitted with a lifting threaded sleeve 18, and the lifting threaded sleeve 18 is connected to the lifting block 6. The outer wall of the lifting frame 5 on one side of the lifting threaded rod 17 is symmetrically equipped with slide rails 19. The outer wall of the slide rails 19 is symmetrically equipped with sliders 20, and the sliders 20 are connected to the lifting block 6. The outer wall of the hollow rotating shaft 8 near the drive shaft 9 is provided with a groove 21. The outer wall of the drive shaft 9 on one side of the groove 21 is equipped with a support key 22, and the support key 22 is slidably connected to the groove 21. The magnesia-carbon bricks requiring edge trimming are placed on the surface of conveyor 1. Conveyor 1 is turned on to facilitate the movement of the magnesia-carbon bricks between the two sides of the grinding and trimming heads 10, which are limited by multiple sets of side limiting rollers 25 and upper limiting rollers 28. The servo motor 11 is turned on, and under the support of the support frame 2, the servo motor 11 drives the moving threaded rod 13 to rotate. With the threaded connection between the moving threaded rod 13 and the moving threaded sleeve 12, the moving threaded rod 13 drives the moving threaded sleeve 12 to move, and the moving threaded sleeve 12 drives the moving frame 4 to move. The limiting block 14 slides on the surface of the limiting rail 15. The movable frame 4 provides sliding support, facilitating the easy movement of the movable frame 4, lifting frame 5, lifting block 6, rotary motor 7, hollow rotating shaft 8, and drive shaft 9 to one side of the magnesium carbon brick. The lifting motor 16 is activated, and with the support of the lifting frame 5, it drives the lifting threaded rod 17 to rotate. Through the threaded connection between the lifting threaded rod 17 and the lifting threaded sleeve 18, the lifting threaded rod 17 moves the lifting threaded sleeve 18, which in turn moves the lifting block 6. The slider 20 slides on the surface of the slide rail 19, providing sliding support for the lifting block 6. The lifting block 6 drives the drive shaft 9 to move inside the hollow rotating shaft 8. The drive shaft 9 drives the support key 22 to slide inside the slide groove 21, providing sliding support for the drive shaft 9. The drive shaft 9 drives the grinding and trimming head 10 to move to the appropriate position. The rotary motor 7 is turned on. With the support of the lifting frame 5, the rotary motor 7 drives the hollow rotating shaft 8 to rotate. The hollow rotating shaft 8 drives the drive shaft 9 to rotate under the limitation of the support key 22 and the slide groove 21. The lifting block 6 provides movable support for the drive shaft 9. The drive shaft 9 drives the grinding and trimming head 10 to rotate, facilitating the rotation of the two sets of grinding and trimming heads. Edge head 10 performs preliminary rough trimming on magnesia-carbon bricks. After rough trimming, the magnesia-carbon bricks are moved between another set of two-sided grinding and trimming heads 10 under the limit of multiple sets of side limiting rollers 25 and upper limit rollers 28, so as to facilitate further fine trimming of the magnesia-carbon bricks. After trimming, the magnesia-carbon bricks are moved to the next process by conveyor 1. This realizes convenient automatic trimming of magnesia-carbon bricks by the trimming device, facilitates multiple trimming of magnesia-carbon bricks, improves the trimming effect of magnesia-carbon bricks, facilitates trimming operations of magnesia-carbon bricks of different sizes, and improves the efficiency of batch trimming of magnesia-carbon bricks. Power cylinders 23 are symmetrically installed on the outer wall of the main limiting frame 3. Side limiting frames 24 are installed at the output end of the power cylinders 23. Side limiting rollers 25 are movably installed on the outer wall of the side limiting frames 24. Springs 26 are installed at the top of the main limiting frame 3. Upper limiting frames 27 are provided on the outside of the main limiting frame 3 on one side of the springs 26. One end of the springs 26 is connected to the main limiting frame 3, and the other end of the springs 26 is connected to the upper limiting frames 27. Upper limiting rollers 28 are movably installed at the bottom of the upper limiting frames 27. Multiple sets of power cylinders 23 are opened. Under the support of the main limiting frame 3, the power cylinders 23 drive the side limiting frames 24 to move. The side limiting frames 24 drive the side limiting rollers 25 to move, so that the two sets of side limiting rollers 25 can move to the surface of the magnesia-carbon brick to facilitate limiting and supporting the magnesia-carbon brick. Under the support of the spring 26 by the main limiting frame 3, the spring 26 elastically drives the upper limiting frame 27 to move. The upper limiting frame 27 elastically drives the upper limiting roller 28 to press down, so that the upper limiting roller 28 can press tightly down to the surface of the magnesia-carbon brick to facilitate elastic limiting of the magnesia-carbon brick. This realizes convenient multi-limiting of the magnesia-carbon brick during the conveying process of the trimming device, avoiding displacement of the magnesia-carbon brick during the trimming process and affecting the trimming effect of the magnesia-carbon brick.

[0022] Work steps The magnesia-carbon bricks requiring edge trimming are placed on the surface of conveyor 1. Conveyor 1 is then turned on to facilitate the movement of the magnesia-carbon bricks between the two sides of the grinding and trimming heads 10, which are limited by multiple sets of side limiting rollers 25 and upper limiting rollers 28. Servo motor 11 drives the moving threaded rod 13 to rotate, which in turn drives the moving threaded sleeve 12 to move. The moving threaded sleeve 12 then drives the moving frame 4 to move, facilitating the convenient movement of the moving frame 4, along with the lifting frame 5, lifting block 6, rotary motor 7, hollow rotating shaft 8, and drive shaft 9, to one side of the magnesia-carbon bricks. The lifting motor 16 drives the lifting threaded rod 17 to rotate, the lifting threaded rod 17 drives the lifting threaded sleeve 18 to move, the lifting threaded sleeve 18 drives the lifting block 6 to move, the slider 20 slides on the surface of the slide rail 19 to provide sliding support for the lifting block 6, the lifting block 6 drives the drive shaft 9 to move inside the hollow rotating shaft 8, the support key 22 slides inside the slide groove 21 to provide sliding support for the drive shaft 9, the drive shaft 9 drives the grinding and trimming head 10 to move to the appropriate position, the rotary motor 7 drives the hollow rotating shaft 8 to rotate, the hollow rotating shaft 8. Under the limiting of the support key 22 and the slide 21, the drive shaft 9 is driven to rotate. The lifting block 6 provides movable support for the drive shaft 9. The drive shaft 9 drives the grinding and trimming head 10 to rotate, so that the two sets of grinding and trimming heads 10 can perform preliminary rough trimming on the magnesia-carbon brick. The magnesia-carbon brick with rough trimming is moved between the other set of two grinding and trimming heads 10 under the limiting of multiple sets of side limiting rollers 25 and upper limiting rollers 28, so as to facilitate the fine trimming of the magnesia-carbon brick again. The magnesia-carbon brick with trimming is moved to the next process by the conveyor 1. The force cylinder 23 drives the side limiting frame 24 to move, and the side limiting frame 24 drives the side limiting roller 25 to move, so that the two sets of side limiting rollers 25 can move to the surface of the magnesia-carbon brick to facilitate the limiting support of the magnesia-carbon brick. Under the support of the spring 26 of the main limiting frame 3, the spring 26 elastically drives the upper limiting frame 27 to move, and the upper limiting frame 27 elastically drives the upper limiting roller 28 to press down, so that the upper limiting roller 28 can be pressed tightly down to the surface of the magnesia-carbon brick to facilitate the elastic limiting of the magnesia-carbon brick, thus completing the use of the trimming device.

[0023] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic trimming device for the production of magnesia-carbon bricks, characterized in that: The system includes a conveyor and support frames. Two sets of support frames are symmetrically arranged on the outside of the conveyor. Multiple sets of main limiting frames with equal spacing are installed on the top of the conveyor. A movable frame is slidably installed on the top of each support frame. A lifting frame is installed on the outer wall of each movable frame. A lifting block is slidably installed on the outer wall of each lifting frame. A rotary motor is installed on the top of each lifting frame. A hollow rotating shaft is installed at the output end of each rotary motor. A drive shaft is slidably installed inside each hollow rotating shaft and extends to the outside of the hollow rotating shaft. The drive shaft is movably connected to the lifting block. A grinding and trimming head is installed on the bottom end of each drive shaft on the side away from the lifting block. A servo motor is installed on the top of each support frame on one side of the movable frame.

2. The automatic trimming device for magnesia-carbon brick production according to claim 1, characterized in that: Each servo motor has a movable threaded rod installed at its output end, and the movable threaded rod is movably connected to the support frame. Each movable threaded rod has a movable threaded sleeve fitted on its surface, and the movable threaded sleeve is connected to the moving frame. Each support frame top on one side of the movable threaded sleeve has a limit rail symmetrically installed. Each limit rail top has a limit block symmetrically slidably installed, and the limit block is connected to the moving frame. Each lifting frame top on one side of the rotary motor has a lifting motor installed. Each lifting motor output end has a lifting threaded rod, and the lifting threaded rod extends to the outside of the lifting frame, and the lifting threaded rod is movably connected to the lifting frame.

3. The automatic trimming device for magnesia-carbon brick production according to claim 2, characterized in that: The surface of each lifting threaded rod is fitted with a lifting threaded sleeve, and the lifting threaded sleeve is connected to the lifting block.

4. The automatic trimming device for magnesia-carbon brick production according to claim 3, characterized in that: Each of the lifting screw rods has a slide rail symmetrically installed on the outer wall of the lifting frame. Each of the slide rails has a slider symmetrically slidably installed on the outer wall of the slide rail, and the slider is connected to the lifting block.

5. An automatic trimming device for magnesia-carbon brick production according to claim 4, characterized in that: Each hollow rotating shaft has a sliding groove on the outer wall near the drive shaft, and a support key is installed on the outer wall of the drive shaft on the side of the sliding groove, and the support key is slidably connected to the sliding groove.

6. An automatic trimming device for magnesia-carbon brick production according to claim 5, characterized in that: Each of the main limiting frames is symmetrically equipped with a power cylinder, and each of the power cylinders has a side limiting frame installed at its output end.

7. An automatic trimming device for magnesia-carbon brick production according to claim 6, characterized in that: Side limiting rollers are movably installed on the outer wall of each side limiting frame, and springs are installed on the top of each main limiting frame.

8. An automatic trimming device for magnesia-carbon brick production according to claim 7, characterized in that: The main limiting frame on one side of the spring is equipped with an upper limiting frame on the outside, and one end of the spring is connected to the main limiting frame.

9. An automatic trimming device for magnesia-carbon brick production according to claim 8, characterized in that: The other end of the spring is connected to the upper limit frame, and the bottom end of the upper limit frame is movably equipped with an upper limit roller.