Furnace building brick shaping device
The brick shaping device addresses precision and cost issues by using rotatable axes and servo motors for precise shaping with integrated dust and water management, reducing energy consumption and costs.
Patent Information
- Application Number
- CN202422085047.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-08-27
AI Technical Summary
The existing furnace building brick shaping device cannot effectively clamp and fix the refractory bricks, resulting in low grinding and shaping accuracy, and the use of multiple sets of motors increases manufacturing cost and power consumption.
The first rotating shaft seat and the second rotating shaft seat are clamped and fixed, and the grinding direction is adjusted through the coordination of the servo motor and the electric cylinder, reducing the number of use of the motor and the electric cylinder, and at the same time, a water storage tank, atomization nozzle and filter plate are provided for dust reduction and water resource recycling.
It improves the precision of plastic shaping, reduces the manufacturing cost and power consumption of the device, prevents dust pollution and extends the service life of the device.
Smart Images

Figure CN223098781U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of refractory brick processing, and more specifically, to a refractory brick shaping device. Background Technique
[0002] Refractory bricks are brick building materials used for building kilns. Since the temperature inside the kiln is relatively high, refractory bricks are required to withstand high temperatures. Therefore, refractory bricks are often made of refractory brick bodies. During the processing of refractory bricks, in order to ensure that the size of the fired refractory brick bodies meets the building specifications, it is often necessary to grind and shape the fired refractory bricks to remove the uneven or oversized parts on their surfaces to meet the construction requirements of building kilns. For this purpose, a refractory brick shaping device is needed.
[0003] The prior art discloses a refractory brick grinding and shaping device with the publication number: CN213765302U, which includes a base. The middle of the top of the base is fixedly provided with an installation frame. The top of the base is installed with a cover body through a hanging beam assembly. Two first motors, two second motors and two third motors are respectively fixedly installed on both sides, both sides and both sides of the top of the cover body. The output shafts of the two first motors, the output shafts of the two second motors and the output shafts of the two third motors are respectively installed with two first grinding heads, two second grinding heads and two third grinding heads through six telescopic assemblies. The beneficial effect of this utility model is that the refractory brick is placed by clamping through the installation frame, and then the two first grinding heads, two second grinding heads and two third grinding heads can be driven to rotate by the first motor, the second motor and the third motor respectively to grind the top and the top of the four sides of the refractory brick. After grinding, it is inverted for grinding the bottom and the bottom of the four sides, without the need for multiple turnovers.
[0004] When the above-mentioned utility model is in use, the refractory brick to be shaped can only be placed in the installation frame, but it cannot be clamped and fixed, which is likely to affect the subsequent grinding and shaping processing accuracy. Moreover, this utility model needs to use multiple groups of motors to drive the corresponding grinding heads to rotate respectively. Not only is the operation of adjusting the positions of the grinding heads before use more cumbersome, but also the use of multiple groups of motors and electric cylinders greatly increases the manufacturing cost of the device and the power consumption during use. Therefore, its practicability is relatively average. Content of the Utility Model
[0005] (1) Technical Problems to be Solved
[0006] In view of the deficiencies of the prior art, the utility model provides a refractory brick shaping device, which has the advantages of being able to clamp and fix the refractory brick to be ground and shaped and adjust the grinding direction, which is beneficial to improving the shaping processing accuracy. At the same time, the number of motors and electric cylinders used is reduced, thereby reducing the manufacturing cost of the device and the power consumption during use, and having stronger practicability, thus solving the problems in the above-mentioned background technique.
[0007] (2) Technical solution
[0008] In order to achieve the advantages of being able to clamp and fix the refractory bricks to be ground and shaped and adjust the grinding direction, which is beneficial to improving the shaping processing accuracy, while reducing the number of motors and electric cylinders used, thus reducing the manufacturing cost of the device and the power consumption during use, and having stronger practicability, the specific technical solution adopted by the present utility model is as follows: A refractory brick shaping device includes an installation base, a first rotating shaft seat, a second rotating shaft seat and a waterproof motor box. A shaping box is fixedly installed on the top surface of the installation base, and a nut is fixedly installed on one side of the top surface of the shaping box. A fastening screw is threadedly sleeved in the nut. The bottom end of the fastening screw is connected and installed with a mounting plate. The center of the bottom surface of the mounting plate is installed with a first rotating shaft seat, and a first clamping block is fixedly installed at the bottom end of the first rotating shaft seat. A second rotating shaft seat is fixedly installed on one side of the top surface of the installation base. A second clamping block is fixedly installed at the top end of the second rotating shaft seat. A second gear is fixedly installed on the second rotating shaft seat. An installation cavity is opened in the installation base, and a second servo motor is installed in the installation cavity. The output end of the second servo motor is connected with an adjusting shaft. A first gear is fixedly installed on the adjusting shaft, and the first gear meshes with the second gear. An electric cylinder is fixedly installed on one side surface of the shaping box, and the output end of the electric cylinder is connected and installed with a waterproof motor box. A first servo motor is installed in the waterproof motor box. The output end of the first servo motor is connected and installed with a grinding shaft, and a grinding disc is fixedly installed at one end of the grinding shaft.
[0009] Furthermore, a water storage tank is opened on the top surface of the installation base, and a water collecting hopper is fixedly installed at the top of the water storage tank. A placing block is fixedly installed on the inner wall of the water collecting hopper, and a filter screen plate is placed and installed on the placing block. A liquid homogenizing box is fixedly installed on the top surface of the shaping box, and a plurality of atomizing nozzles are evenly installed on the bottom surface of the liquid homogenizing box. The inner cavity of the liquid homogenizing box is connected and communicated with a circulating water pipe. A water pump is installed on the circulating water pipe, and the other end of the circulating water pipe is connected and communicated with the inner cavity of the water storage tank.
[0010] Furthermore, a control panel is fixedly installed on the side wall of the installation base, and the control panel is electrically connected to the first servo motor, the second servo motor, the water pump and the electric cylinder.
[0011] Furthermore, guide sliding rods are symmetrically welded on the side wall of the waterproof motor box. Guide sliding sleeves are symmetrically fixedly installed on the side wall of the shaping box, and the guide sliding rods are sleeved in the guide sliding sleeves.
[0012] Furthermore, a box door is connected and installed on one side of the shaping box through a hinge, and a handle is fixedly installed on the box door.
[0013] Furthermore, an observation window is fixedly installed on one side wall of the shaping box.
[0014] Furthermore, a hand crank is fixedly installed at the top end of the fastening screw rod.
[0015] (III) Advantageous Effects
[0016] Compared with the prior art, the utility model provides a shaping device for furnace building bricks, which has the following advantageous effects:
[0017] (1) The utility model is provided with a first rotating shaft seat and a second rotating shaft seat. During use, a worker can place the furnace building brick to be shaped in the center of the top surface of the second clamping block, and then the worker can drive the fastening screw rod to rotate through the hand crank. Since the provided fastening screw rod is threadedly sleeved in the nut, and the bottom end of the fastening screw rod is connected and installed with a mounting plate, and the center of the bottom surface of the mounting plate is installed with a first rotating shaft seat, with the rotation of the fastening screw rod, the mounting plate and the first rotating shaft seat can be driven to move downward until the first clamping block fixedly installed on the bottom surface of the first rotating shaft seat tightly abuts against the top surface of the furnace building brick. At this time, the furnace building brick can be tightly clamped and fixed between the first clamping block and the second clamping block, and at this time, one side surface of the furnace building brick is parallel to the grinding disc. Then the worker can start the electric cylinder installed on one side of the shaping box through the control panel to push the waterproof motor box to move. The waterproof motor box is symmetrically installed with guide slide rods on one side, and the guide slide rods are sleeved in the guide slide sleeves, so as to ensure the stable translation of the waterproof motor box. A first servo motor is installed in the waterproof motor box, and the output end of the first servo motor is connected and installed with a grinding shaft, and a grinding disc is fixedly installed at one end of the grinding shaft. Thus, the side surface of the furnace building brick can be ground and shaped by using the rotating grinding disc. During the processing, it can be ensured that the furnace building brick is stably clamped, which is beneficial to improving the shaping accuracy and effect. After the shaping grinding of one side surface of the furnace building brick is completed, the worker can start the second servo motor installed in the installation cavity through the control panel, and use the second servo motor to drive the adjusting shaft and the first gear to rotate. Since the first gear meshes with the second gear fixedly installed on the second rotating shaft seat, the second rotating shaft seat can be driven to rotate 90 degrees through the first gear and the second gear, so that the other side surface of the furnace building brick is parallel to the grinding disc, and then the side surface is ground and shaped by using the grinding disc. By repeating the above steps, the grinding and shaping of the four side surfaces of the furnace building brick can be completed. Then the furnace building brick is erected and clamped and fixed. By the same principle, the remaining two sides are ground and shaped. Thus, a shaping device for furnace building bricks can clamp and fix the furnace building brick to be ground and shaped and adjust the grinding direction, which is beneficial to improving the shaping processing accuracy. At the same time, the number of motors and electric cylinders used is reduced, thereby reducing the manufacturing cost of the device and the power consumption during use, and the practicability is stronger.
[0018] (2) The present utility model is provided with a water storage tank, atomizing nozzles and a filter screen plate. As described above, when the grinding disc grinds and shapes the side surface of the furnace building brick, the worker can start the water pump installed on the circulating water pipe through the control panel. The water pump can pump the clear water in the water storage tank into the inner cavity of the liquid homogenizing tank through the circulating water pipe, and then spray it out through several atomizing nozzles installed on the bottom surface of the liquid homogenizing tank. The sprayed water mist can perform dust reduction treatment on the dust generated during the operation of the grinding disc, prevent the generated dust from polluting the atmospheric environment and endangering the health of workers, and at the same time can reduce the temperature of the grinding disc during operation to a certain extent, prevent the device from overheating and malfunctioning, which is beneficial to extending the service life of the device. The dust-containing sewage generated can flow into the water collecting hopper. A placing block is installed in the water collecting hopper, and a filter screen plate is installed on the placing block, which can remove impurities in the sewage, filter and recycle the collected water body, and reduce the waste of water resources. Description of the Drawings
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0020] Figure 1 is a schematic structural diagram of a furnace building brick shaping device according to an embodiment of the present utility model;
[0021] Figure 2 is a front view of a furnace building brick shaping device according to an embodiment of the present utility model;
[0022] Figure 3 is according to an embodiment of the present utility model Figure 1 Enlarged view of part A;
[0023] Figure 4 is according to an embodiment of the present utility model Figure 1 Enlarged view of part B;
[0024] Figure 5 is according to an embodiment of the present utility model Figure 1 Enlarged view of part C;
[0025] Figure 6 is a three-dimensional view of the second rotating shaft seat of a furnace building brick shaping device according to an embodiment of the present utility model.
[0026] In the figure:
[0027] 1. Installation base; 2. Cabinet door; 3. Handle; 4. Tightening screw; 5. Hand crank; 6. Circulating water pipe; 7. Water pump; 8. Grinding disc; 9. Shaping box; 10. Waterproof motor box; 11. Grinding shaft; 12. Guide slide bar; 13. Electric cylinder; 14. Guide slide sleeve; 15. Control panel; 16. First servo motor; 17. Water storage tank; 18. Hinge; 19. Observation window; 20. Nut; 21. Mounting plate; 22. First rotating shaft seat; 23. First clamping block; 24. Liquid homogenizing box; 25. Atomizing nozzle; 26. Installation cavity; 27. Second servo motor; 28. Adjusting shaft; 29. First gear; 30. Second rotating shaft seat; 31. Second gear; 32. Water collecting hopper; 33. Placing block; 34. Filter screen plate; 35. Second clamping block. Detailed implementation manners
[0028] To further illustrate each embodiment, the present utility model provides accompanying drawings. These drawings are a part of the disclosure of the present utility model, mainly used to illustrate the embodiments, and can cooperate with the relevant descriptions in the specification to explain the operation principle of the embodiments. With reference to these contents, those of ordinary skill in the art should be able to understand other possible implementation manners and the advantages of the present utility model. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.
[0029] According to an embodiment of the present utility model, a shaping device for building furnace bricks is provided.
[0030] Now, the present utility model will be further described in conjunction with the accompanying drawings and specific implementation manners. As Figures 1-6As shown in the figure, a shaping device for furnace building bricks according to an embodiment of the present utility model includes a mounting base 1, a first rotating shaft seat 22, a second rotating shaft seat 30, and a waterproof motor box 10. A shaping box 9 is fixedly installed on the top surface of the mounting base 1. One side of the top surface of the shaping box 9 is fixedly installed with a nut 20, and a fastening screw 4 is threadedly sleeved in the nut 20. The bottom end of the fastening screw 4 is connected and installed with a mounting plate 21. The center of the bottom surface of the mounting plate 21 is installed with a first rotating shaft seat 22, and a first clamping block 23 is fixedly installed at the bottom end of the first rotating shaft seat 22. One side of the top surface of the mounting base 1 is fixedly installed with a second rotating shaft seat 30, and a second clamping block 35 is fixedly installed at the top end of the second rotating shaft seat 30. A second gear 31 is fixedly installed on the second rotating shaft seat 30. A mounting cavity 26 is opened in the mounting base 1, and a second servo motor 27 is installed in the mounting cavity 26. The output end of the second servo motor 27 is connected with an adjusting shaft 28. A first gear 29 is fixedly installed on the adjusting shaft 28, and the first gear 29 meshes with the second gear 31. One side surface of the shaping box 9 is fixedly installed with an electric cylinder 13, and the output end of the electric cylinder 13 is connected and installed with a waterproof motor box 10. A first servo motor 16 is installed in the waterproof motor box 10, and the output end of the first servo motor 16 is connected and installed with a grinding shaft 11. A grinding disc 8 is fixedly installed at one end of the grinding shaft 11. It enables a shaping device for furnace building bricks to clamp and fix the furnace building bricks to be ground and shaped and adjust the grinding direction, which is beneficial to improving the shaping processing accuracy. At the same time, it reduces the number of motors and electric cylinders 13 used, thereby reducing the manufacturing cost of the device and the power consumption during use, and has stronger practicability.
[0031] In one embodiment, a water storage tank 17 is opened on the top surface of the mounting base 1, and a water collecting hopper 32 is fixedly installed at the top of the water storage tank 17. A placing block 33 is fixedly installed on the inner wall of the water collecting hopper 32, and a filter screen plate 34 is placed and installed on the placing block 33. A liquid homogenizing tank 24 is fixedly installed on the top surface of the shaping box 9, and a plurality of atomizing nozzles 25 are uniformly installed at the bottom of the liquid homogenizing tank 24. The inner cavity of the liquid homogenizing tank 24 is connected and communicated with a circulating water pipe 6, and a water pump 7 is installed on the circulating water pipe 6. The other end of the circulating water pipe 6 is connected and communicated with the inner cavity of the water storage tank 17. It can perform dust reduction treatment on the dust generated during the operation of the grinding disc 8 by spraying water mist, prevent the generated dust from polluting the atmospheric environment and harming the health of workers. At the same time, it can reduce the temperature of the grinding disc 8 during operation to a certain extent, prevent the device from overheating and malfunctioning, and is beneficial to extending the service life of the device.
[0032] In one embodiment, a control panel 15 is fixedly installed on the side wall of the mounting base 1, and the control panel 15 is electrically connected to the first servo motor 16, the second servo motor 27, the water pump 7, and the electric cylinder 13, which plays a role in controlling the normal operation of the device.
[0033] In one embodiment, guiding slide bars 12 are symmetrically welded to the side walls of the waterproof motor box 10, guiding slide sleeves 14 are symmetrically and fixedly installed on the side walls of the shaping box 9, and the guiding slide bars 12 are sleeved inside the guiding slide sleeves 14, which can ensure the stable translation of the waterproof motor box 10.
[0034] In one embodiment, a box door 2 is connected and installed to one side of the shaping box 9 through a hinge 18, and a handle 3 is fixedly installed on the box door 2, which is convenient for workers to take and place refractory bricks and can maintain the airtightness of the inner cavity of the shaping box 9.
[0035] In one embodiment, an observation window 19 is fixedly installed on one side wall of the shaping box 9, which is convenient for workers to observe the grinding and shaping conditions of refractory bricks.
[0036] In one embodiment, a hand crank 5 is fixedly installed at the top of the fastening screw rod 4, which is convenient for workers to rotate and adjust the fastening screw rod 4.
[0037] Working principle: The utility model is provided with a first rotating shaft seat 22 and a second rotating shaft seat 30. During use, workers can place the refractory brick to be shaped on the center of the top surface of the second clamping block 35. Then, the worker can drive the fastening screw 4 to rotate by turning the handwheel 5. Since the set fastening screw 4 is threadedly sleeved in the nut 20, and the bottom end of the fastening screw 4 is connected and installed with a mounting plate 21, and the center of the bottom surface of the mounting plate 21 is installed with a first rotating shaft seat 22, as the fastening screw 4 rotates, it can drive the mounting plate 21 and the first rotating shaft seat 22 to move downward until the first clamping block 23 fixedly installed on the bottom surface of the first rotating shaft seat 22 tightly abuts against the top surface of the refractory brick. At this time, the refractory brick can be tightly clamped and fixed between the first clamping block 23 and the second clamping block 35, and at this time, one side surface of the refractory brick is parallel to the grinding disc 8. Then, the worker can start the electric cylinder 13 installed on one side of the shaping box 9 through the control panel 15 to push the waterproof motor box 10 to move. The set waterproof motor box 10 is symmetrically installed with guide slide bars 12 on one side, and the guide slide bars 12 are sleeved in the guide slide sleeves 14, so as to ensure the stable translation of the waterproof motor box 10. The set waterproof motor box 10 is installed with a first servo motor 16, and the output end of the first servo motor 16 is connected and installed with a grinding shaft 11, and a grinding disc 8 is fixedly installed at one end of the grinding shaft 11. Thus, the side surface of the refractory brick can be ground and shaped by the rotating grinding disc 8. During the processing, it can be ensured that the refractory brick is stably clamped, which is beneficial to improving the shaping accuracy and effect. After the side surface of the refractory brick is shaped and ground, the worker can start the second servo motor 27 installed in the installation cavity 26 through the control panel 15, and use the second servo motor 27 to drive the adjusting shaft 28 and the first gear 29 to rotate. Since the first gear 29 meshes with the second gear 31 fixedly installed on the second rotating shaft seat 30, the second rotating shaft seat 30 can be driven to rotate 90 degrees through the first gear 29 and the second gear 31, so that the other side surface of the refractory brick is parallel to the grinding disc 8, and then the side surface is ground and shaped by the grinding disc 8. By repeating the above steps, the grinding and shaping of the four side surfaces of the refractory brick can be completed. Then, the refractory brick is erected and clamped and fixed. According to the same principle, the remaining two sides are ground and shaped, so that a refractory brick shaping device can clamp and fix the refractory brick to be ground and shaped and adjust the grinding direction, which is beneficial to improving the shaping processing accuracy. At the same time, the number of motors and the electric cylinder 13 used is reduced, thereby reducing the manufacturing cost of the device and the power consumption during use, and the practicability is stronger. In addition, the utility model is provided with a water storage tank 17, an atomizing nozzle 25 and a filter screen plate 34. As described above, when the grinding disc 8 grinds and shapes the side surface of the refractory brick, the worker can start the water pump 7 installed on the circulating water pipe 6 through the control panel 15. The water pump 7 can pump the clear water in the water storage tank 17 into the inner cavity of the liquid homogenizing tank 24 through the circulating water pipe 6, and then spray it out through a plurality of atomizing nozzles 25 installed on the bottom surface of the liquid homogenizing tank 24. The sprayed water mist can perform dust reduction treatment on the dust generated during the operation of the grinding disc 8.To prevent the generated dust from polluting the atmospheric environment and endangering the health of workers, and at the same time, it can reduce the temperature of the grinding disc 8 to a certain extent during operation, prevent the device from overheating and malfunctioning, which is beneficial to extending the service life of the device. The dust-containing sewage generated can flow into the water collecting hopper 32. A placing block 33 is installed in the provided water collecting hopper 32, and a filter mesh plate 34 is installed on the placing block 33, which can remove impurities in the sewage, filter and recycle the collected water body, and reduce the waste of water resources.
[0038] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "setting", "connection", "fixation", "swivel connection" and the like shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0039] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A shaping device for furnace bricks, comprising a mounting base (1), a first rotating shaft seat (22), a second rotating shaft seat (30) and a waterproof motor box (10), characterized in that, On the top surface of the installation base (1), a shaping box (9) is fixedly installed. On one side of the top surface of the shaping box (9), a nut (20) is fixedly installed, and a fastening screw rod (4) is threadedly sleeved in the nut (20). The bottom end of the fastening screw rod (4) is connected and installed with a mounting plate (21). In the center of the bottom surface of the mounting plate (21), a first rotating shaft seat (22) is installed. The bottom end of the first rotating shaft seat (22) is fixedly installed with a first clamping block (23). On one side of the top surface of the installation base (1), a second rotating shaft seat (30) is fixedly installed. The top end of the second rotating shaft seat (30) is fixedly installed with a second clamping block (35). And a second gear (31) is fixedly installed on the second rotating shaft seat (30). An installation cavity (26) is formed in the installation base (1). A second servo motor (27) is installed in the installation cavity (26). The output end of the second servo motor (27) is connected with an adjusting shaft (28). A first gear (29) is fixedly installed on the adjusting shaft (28). The first gear (29) meshes with the second gear (31). On one side surface of the shaping box (9), an electric cylinder (13) is fixedly installed. The output end of the electric cylinder (13) is connected and installed with a waterproof motor box (10). A first servo motor (16) is installed in the waterproof motor box (10). The output end of the first servo motor (16) is connected and installed with a grinding shaft (11). And a grinding disc (8) is fixedly installed at one end of the grinding shaft (11).
2. The shaping device for furnace bricks according to claim 1, wherein On the top surface of the installation base (1), a water storage tank (17) is formed. At the top of the water storage tank (17), a water collecting hopper (32) is fixedly installed. A placing block (33) is fixedly installed on the inner wall of the water collecting hopper (32). A filter mesh plate (34) is placed and installed on the placing block (33). On the top surface of the shaping box (9), a liquid homogenizing box (24) is fixedly installed. A plurality of atomizing nozzles (25) are uniformly installed on the bottom surface of the liquid homogenizing box (24). The inner cavity of the liquid homogenizing box (24) is communicated and connected with a circulating water pipe (6). A water pump (7) is installed on the circulating water pipe (6). The other end of the circulating water pipe (6) is communicated and connected with the inner cavity of the water storage tank (17).
3. The shaping device for furnace bricks according to claim 1, characterized in that, On the side wall of the installation base (1), a control panel (15) is fixedly installed. The control panel (15) is electrically connected with the first servo motor (16), the second servo motor (27), the water pump (7), and the electric cylinder (13).
4. A refractory brick shaping device according to claim 1, characterized in that, On the side wall of the waterproof motor box (10), guiding slide rods (12) are symmetrically welded. On the side wall of the shaping box (9), guiding slide sleeves (14) are symmetrically fixedly installed. The guiding slide rods (12) are sleeved in the guiding slide sleeves (14).
5. A refractory brick shaping device according to claim 1, characterized in that, On one side of the shaping box (9), a box door (2) is connected and installed through a hinge (18). A handle (3) is fixedly installed on the box door (2).
6. The shaping device for furnace bricks according to claim 1, characterized in that, On one side wall of the shaping box (9), an observation window (19) is fixedly installed.
7. The shaping device for furnace bricks according to claim 1, characterized in that, At the top end of the fastening screw rod (4), a hand crank (5) is fixedly installed.
Citation Information
Patent Citations
Refractory brick grinding and shaping device
CN213765302U