Vertical edging machine for marble manufacturing

Abstract

The application relates to the technical field of edge grinding machine equipment, and discloses a vertical edge grinding machine for marble manufacturing, which comprises a platform, a vertical plate is welded to the upper surface of the platform, a protective cover is welded to the side surface of the vertical plate, an edge grinding wheel is connected to the inside of the protective cover through a rotating shaft, an edge grinding sand belt is arranged on the surface of the edge grinding wheel, a silent motor is connected to the end of the rotating shaft through a shaft coupling, and the inside of the edge grinding wheel is hollow. In the application, the hollow edge grinding wheel forms an air flow channel with the air pipe through the air exchange hole, the cooling air flow conveyed by the silent turbine fan acts on the surface of the edge grinding sand belt (the base belt surface in contact with the wheel body) through the annular groove, and the nozzle of the cooling water pipe sprays, so that the double cooling of 'internal cooling + water cooling' is formed, the heat generated by the friction of the edge grinding sand belt can be quickly taken away, the sand belt is prevented from being aged or abraded due to high temperature, and the service life of the sand belt is prolonged.

Description

Technical Field

[0001] This utility model relates to the technical field of edge grinding machine equipment, and in particular to a vertical edge grinding machine for marble manufacturing. Background Technology

[0002] In the processing of marble vertical edge grinding machines, the grinding belt, as the grinding component that directly contacts the edge of the stone, has a decisive impact on processing quality, service life, and work efficiency due to the stability of its working temperature. As marble products develop towards thinner walls, irregular shapes, and higher gloss levels, the linear speed of the grinding belt has increased to 15-25 m / s, significantly increasing the frictional energy density with the stone and causing the temperature of the grinding belt to rise rapidly during continuous operation.

[0003] In the water cooling system, there is a distance of 50-80mm between the nozzle and the surface of the abrasive belt. Due to the airflow barrier generated by the high-speed movement of the abrasive belt, the actual adhesion rate of the cooling water is less than 40%, and most of the water flow is thrown away from the grinding area by centrifugal force. It can only achieve surface cooling and cannot penetrate to the contact interface between the abrasive belt and the stone (the core area of ​​frictional heat source), resulting in a cooling efficiency of less than 30%. Utility Model Content

[0004] To solve the above problems, this utility model provides a vertical edge grinding machine for marble manufacturing.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a vertical edge grinding machine for marble manufacturing, comprising a platform, a vertical plate welded to the upper surface of the platform, a protective cover welded to the side surface of the vertical plate, an edge grinding wheel connected to the inside of the protective cover via a rotating shaft, an edge grinding belt mounted on the surface of the edge grinding wheel, and a silent motor connected to the end of the rotating shaft via a coupling, the inside of the edge grinding wheel being hollow, an annular groove formed on the surface of the edge grinding wheel, and a ventilation hole extending through the annular groove through the edge grinding wheel, a flange bolted to the side surface of the edge grinding wheel, and the flange mounted on the surface of a duct via a sealed bearing, the duct being connected to a silent turbine fan, a cooling water pipe extending through the inside of the protective cover, a nozzle mounted on the surface of the cooling water pipe, and a solenoid valve mounted on the surface of the cooling water pipe.

[0006] By adopting the above technical solution, the hollow grinding wheel forms an airflow channel with the air duct through the ventilation hole. The cooling airflow delivered by the silent turbine fan acts on the surface of the grinding belt (the base belt surface in contact with the wheel body) through the annular groove. Combined with the spraying of the nozzles of the cooling water pipe, a dual cooling of "internal cooling + water cooling" is formed, which can quickly remove the heat generated by the friction of the grinding belt, avoid the belt from aging or aggravating wear due to high temperature, and extend its service life.

[0007] Furthermore, the inner side of the protective cover is adhered with centrifugal glass wool, the inner side of the centrifugal glass wool is adhered with a damping pad, the inner side of the damping pad is adhered with open-cell polyurethane foam, and the inner side of the open-cell polyurethane foam is fitted with irregular protruding ribs by bolts.

[0008] By adopting the above technical solution, a multi-layer composite noise reduction structure was constructed: centrifugal glass wool absorbs mid-to-high frequency noise through its porous structure, damping pads consume vibration energy using the internal resistance of the material to suppress low-frequency noise, open-cell polyurethane foam further attenuates the remaining noise and plays a buffering role, and irregular protruding ribs break the noise propagation path through sound wave reflection and scattering. The multi-layer synergy can significantly reduce the noise generated by motor operation and sanding belt friction during the edge grinding process, improve the working environment, and meet industrial noise control standards.

[0009] Furthermore, the cross-section of the irregular protruding rib is triangular.

[0010] By adopting the above technical solution, the protruding ribs of the triangular cross section can enhance the refraction and diffuse reflection of sound waves through sharp edges and corners. Compared with arc or rectangular structures, its edges and corners can more efficiently disperse noise energy and improve sound wave attenuation efficiency. At the same time, the triangular structure has stronger mechanical stability, which can reduce deformation during long-term use and ensure the durability of noise reduction effect.

[0011] Furthermore, an electric cylinder is mounted on the lower surface of the platform via a flange structure, and a processing table is fixed to the piston end of the electric cylinder.

[0012] By adopting the above technical solution, the electric cylinder can drive the processing table to achieve precise lifting and lowering, adapting to the processing needs of marble slabs of different thicknesses and improving the versatility of the equipment.

[0013] Furthermore, the side surface of the platform is fully welded with legs, and the lower surface of the legs is equipped with shock-absorbing pads.

[0014] By adopting the above technical solutions, the fully welded support legs enhance the overall structural strength of the equipment, ensuring the stability of the platform during edge grinding operations; the shock-absorbing pads can absorb the vibrations generated during equipment operation, preventing the vibrations from being transmitted to the ground and causing resonance, reducing the impact on surrounding equipment, and at the same time reducing the risk of platform displacement or component loosening caused by vibration, thus extending the service life of the equipment.

[0015] Furthermore, an integrated controller is mounted on the side surface of the upright plate using anti-loosening bolts.

[0016] By adopting the above technical solutions, the integrated controller can centrally control the coordinated operation of components such as silent motors, electric cylinders, solenoid valves, and silent turbine fans, realizing automated adjustment of the edge grinding process (such as automatically adjusting the processing table height according to the plate thickness and adjusting the start and stop of the cooling system according to the edge grinding load), improving the ease of operation; the anti-loosening bolts can effectively prevent the controller from loosening in the equipment vibration environment, ensure stable circuit connection, avoid equipment failure due to poor contact, and improve operational reliability.

[0017] In summary, this utility model has the following beneficial effects:

[0018] 1. In this application, the hollow grinding wheel forms an airflow channel with the air duct through the ventilation hole. The cooling airflow delivered by the silent turbine fan acts on the surface of the grinding belt (the base belt surface in contact with the wheel body) through the annular groove. Combined with the spraying of the nozzle of the cooling water pipe, a dual cooling of "internal cooling + water cooling" is formed, which can quickly remove the heat generated by the friction of the grinding belt, avoid the belt from aging or aggravating wear due to high temperature, and extend its service life.

[0019] 2. In this application, centrifugal glass wool absorbs mid-to-high frequency noise through its porous structure, damping pads consume vibration energy by utilizing the internal resistance of the material to suppress low-frequency noise, open-cell polyurethane foam further attenuates the remaining noise and plays a buffering role, and irregular protruding ribs break the noise propagation path through sound wave reflection and scattering. The multi-layer synergy can significantly reduce the noise generated by motor operation and sanding belt friction during the edge grinding process, improve the working environment, and meet industrial noise control standards. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram of the protective cover and its connection structure according to an embodiment of the present utility model;

[0022] Figure 3 This is a schematic diagram of the grinding wheel and its connection structure according to an embodiment of the present invention.

[0023] In the diagram: 1. Platform; 2. Vertical plate; 3. Protective cover; 4. Processing table; 5. Electric cylinder; 6. Support leg; 7. Silent motor; 8. Grinding wheel; 9. Grinding sanding belt; 10. Annular groove; 11. Air duct; 12. Silent turbine fan; 13. Cooling water pipe; 14. Nozzle; 15. Irregular raised ribs; 16. Open-cell polyurethane foam; 17. Damping pad; 18. Centrifugal glass wool; 19. Integrated controller. Detailed Implementation

[0024] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0025] like Figure 1-3 As shown in the embodiment of this application, a vertical edge grinding machine for marble manufacturing is disclosed, including a platform 1, a vertical plate 2 welded to the upper surface of the platform 1, a protective cover 3 welded to the side surface of the vertical plate 2, an edge grinding wheel 8 connected to the inside of the protective cover 3 via a rotating shaft, an edge grinding belt 9 mounted on the surface of the edge grinding wheel 8, and a silent motor 7 connected to the end of the rotating shaft via a coupling. The inside of the edge grinding wheel 8 is hollow, and an annular groove 10 is formed on the surface of the edge grinding wheel 8. An air vent is formed through the annular groove 10. A flange is bolted to the side surface of the edge grinding wheel 8, and the flange is mounted on the surface of the air duct 11 via a sealed bearing. The air duct 11 is connected to a silent turbine fan 12. A cooling water pipe 13 is connected through the inside of the protective cover 3, and a nozzle 14 is mounted on the surface of the cooling water pipe 13. A solenoid valve is mounted on the surface of the cooling water pipe 13.

[0026] Upright plate 2 and anti-slip cover: Upright plate 2 is vertically welded to the upper surface of platform 1. The weld is a continuous fillet weld. The protective cover 3 is fixed to the side surface of upright plate 2 by full welding. After welding, it needs to be sealed to prevent dust from overflowing. Upright plate 2 serves as an "intermediate load-bearing layer". It supports the protective cover 3 and the grinding wheel 8 assembly above and connects to platform 1 below. It forms a rigid frame through welding. The sealed welding of the protective cover 3 and upright plate 2 forms a semi-enclosed space, which encloses the grinding wheel 8, sanding belt and grinding area. It provides an installation carrier for multi-layer noise reduction materials and confines dust and noise within a limited space to prevent them from spreading to the workshop environment.

[0027] Grinding wheel 8, grinding belt 9, and drive system: The grinding wheel 8 is fixed to the rotating shaft by a key connection. Both ends of the rotating shaft are installed in the bearing seats of the upright plate 2 by deep groove ball bearings. One end of the rotating shaft extends out of the outside of the upright plate 2 and is connected to the output shaft of the silent motor 7 by a flexible coupling. The grinding belt 9 is fitted on the surface of the grinding wheel 8. The rotating shaft is connected to the upright plate 2 by bearings to achieve stable rotation of the grinding wheel 8. The flexible coupling can compensate for the coaxiality error of the motor and the rotating shaft, reduce the vibration transmitted to the grinding wheel 8, and avoid wavy defects on the edge of the stone due to vibration. The low noise characteristics of the silent motor 7, combined with the noise reduction structure of the protective cover 3, further reduce the overall noise.

[0028] Cooling System: The other side (non-motor side) of the grinding wheel 8 is connected to a flange via hex bolts. The inside of the flange is connected via a sealed bearing. One end of the air duct 11 is fixed to the air duct 11 bracket on the outside of the vertical plate 2, and the other end is connected to the silent turbine fan 12. The cooling water pipe 13 is fixed to the inside of the protective cover 3 via pipe clamps. The pipe clamps and the protective cover 3 are connected via self-tapping screws. One end of the water pipe extends out of the outside of the protective cover 3. A solenoid valve and a water source interface are installed in sequence. The nozzle 14 is installed on the side of the cooling water pipe 13 facing the grinding belt 9 via a threaded connection. The nozzle 14 points towards... At the contact point between the sanding belt and the stone, the hollow cavity of the grinding wheel 8 and the ventilation hole form an airflow channel: the airflow generated by the silent turbine fan 12 is ejected through the air duct 11 → flange → hollow grinding wheel 8 → ventilation hole, directly acting on the non-friction area between the sanding belt and the stone. The airflow cools the sanding belt 9. The nozzle 14 of the cooling water pipe 13 works with the solenoid valve. The integrated controller 19 can adjust the cooling water flow through the solenoid valve. The nozzle 14 breaks through the airflow barrier generated by the rotation of the sanding belt and forms a "internal cooling + external cooling" dual circulation with the airflow cooling, avoiding the abrasive from falling off due to high temperature.

[0029] The inner side of the protective cover 3 is adhered with centrifugal glass wool 18, the inner side of the centrifugal glass wool 18 is adhered with damping pad 17, the inner side of the damping pad 17 is adhered with open-cell polyurethane foam 16, and the inner side of the open-cell polyurethane foam 16 is fitted with irregular protruding ribs 15 by bolts. The cross-section of the irregular protruding ribs 15 is triangular.

[0030] Noise Reduction System: Noise reduction materials are sequentially pasted on the inner side of the protective cover 3: First, centrifugal glass wool 18 is pasted with high-temperature resistant adhesive, with an adhesive layer thickness of 1-2mm. After pasting, it is pressurized and cured for 24 hours. Damping pad 17 is pasted on the inner side of the glass wool and bonded with a self-adhesive layer. Open-cell polyurethane foam 16 is pasted on the inner side of the damping pad 17. The foam and damping pad 17 are bonded with hot melt adhesive. Irregular protruding ribs 15 are fixed on the inner side of the foam with self-tapping screws. The porous structure of centrifugal glass wool 18 absorbs mid-to-high frequency noise and mainly attenuates the sharp noise generated by sand belt friction. Damping pad 17 consumes the vibration energy of the metal shell of the protective cover 3 through the internal resistance of the material, reducing the secondary noise generated by the vibration of the motor and shaft transmitted to the protective cover 3. Open-cell polyurethane foam 16 further absorbs the remaining noise and buffers the contact stress between the ribs and the foam. The triangular cross-section of the ribs enhances sound wave reflection and diffuse reflection through the edges, breaking the reverberation path of noise in the protective cover 3.

[0031] An electric cylinder 5 is mounted on the lower surface of platform 1 via a flange structure, and a processing table 4 is fixed to the piston end of the electric cylinder 5.

[0032] Electric cylinder 5 and processing table 4: Electric cylinder 5 is fixed to the lower surface of platform 1 by a flange. The flange is bolted to platform 1. The piston end of electric cylinder 5 is fixed to the connecting seat on the lower surface of processing table 4 by a threaded connection. The connecting seat is welded to processing table 4. An anti-loosening nut is installed between the piston end and the connecting seat. The rigid connection between electric cylinder 5 and processing table 4 enables precise lifting and lowering of processing table 4, adapting to marble slabs of different thicknesses: When the thickness of the slab increases, the integrated controller 19 drives the piston of electric cylinder 5 to extend, raising processing table 4 so that the edge of the stone maintains a preset contact pressure with the grinding belt 9; conversely, it lowers processing table 4.

[0033] The side surface of platform 1 is fully welded with legs 6, and the lower surface of legs 6 is equipped with shock-absorbing pads.

[0034] Platform 1 and support leg 6: Support leg 6 is fixed to the side surface of platform 1 by full welding. After welding, stress relief treatment is required to prevent welding deformation from causing platform 1 to tilt. Vibration damping pads are fixed to the lower surface of support leg 6, with bolts passing through the center hole of the damping pads and threadedly connected to support leg 6. The fully welded support leg 6 and platform 1 form a rigid integral structure, bearing the weight of the entire machine and ensuring that platform 1 has no significant deflection during edge grinding operations. The damping pads prevent ground resonance from reacting to the processing table 4, thus avoiding deviations in edge grinding accuracy.

[0035] An integrated controller 19 is installed on the side surface of the upright plate 2 via anti-loosening bolts.

[0036] Integrated controller 19: The integrated controller 19 is installed on the outside of the upright plate 2 by anti-loosening bolts. The bolts pass through the mounting holes of the controller housing and connect to the threaded holes of the upright plate 2. The integrated controller 19 acts as the "central hub" to realize the linkage of various components.

[0037] The operating principle of a vertical edge grinding machine for marble manufacturing in this embodiment is as follows: A silent motor 7 (started by an integrated controller 19) transmits torque to a rotating shaft through a flexible coupling. The rotating shaft rotates stably with the bearing seat on the vertical plate 2, driving the edge grinding wheel 8 fixed on the rotating shaft to rotate synchronously. The edge grinding belt 9 on the surface of the edge grinding wheel 8 rotates at high speed with the wheel body, forming the "power source" for the grinding operation. The operator places the marble slab on the processing table 4 and inputs the slab thickness parameter through the integrated controller 19. The integrated controller 19 drives the piston of the electric cylinder 5 to extend and retract, driving the processing table 4 to rise and fall precisely, so that the edge of the stone contacts the grinding surface of the edge grinding belt 9 and maintains a preset pressure. The high-speed rotating edge grinding belt 9 contacts the edge of the stone, and the diamond abrasive on the surface of the belt cuts the stone, achieving edge smoothing and shaping. During the grinding process, the heat generated by the friction between the abrasive belt and the stone is concentrated in the contact area. The integrated controller 19 synchronously starts the silent turbine fan 12, and the cooling airflow is ejected through the air duct 11 → flange → hollow cavity of the grinding wheel 8 → air exchange hole in the annular groove 10. The airflow acts directly on the inner side of the sanding belt 9 (the base surface in contact with the wheel), quickly carrying away the heat generated by friction. The solenoid valve opens, and the high-pressure water in the cooling water pipe 13 forms a water mist through the nozzle 14, which is sprayed onto the contact point between the sanding belt and the stone. The water vapor further cools the belt, forming a "double attack" with the airflow cooling, keeping the sanding belt temperature below 80℃ and preventing high-temperature aging. The noise generated during the sanding process forms a composite noise field inside the protective cover 3, which is gradually attenuated through a multi-layer noise reduction structure: irregular protruding ribs 15: the ribs with triangular cross-sections refract and diffusely reflect sound waves through their edges, breaking the straight propagation path of noise and dispersing and attenuating the sound wave energy; the porous structure absorbs the mid-to-high frequency noise scattered by the ribs, converting sound energy into heat energy through air vibration and friction; the internal resistance of the material consumes low-frequency vibration energy, suppressing the resonance of the metal shell of the protective cover 3; finally, the remaining noise is absorbed by the porous structure of the glass wool. Through multi-layer synergy, the noise is greatly reduced, making it meet industrial noise standards.

[0038] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A vertical edge grinding machine for marble manufacturing, comprising a platform (1), characterized in that: The platform (1) has a vertical plate (2) welded on its upper surface. The vertical plate (2) has a protective cover (3) welded on its side surface. The protective cover (3) has a grinding wheel (8) connected to its interior via a rotating shaft. The grinding wheel (8) has a grinding sand belt (9) installed on its surface. The end of the rotating shaft is connected to a silent motor (7) via a coupling. The grinding wheel (8) is hollow inside. The grinding wheel (8) has an annular groove (10) on its surface. The annular groove (10) has a ventilation hole through it. The side surface of the grinding wheel (8) is connected to a flange by bolts. The flange is installed on the surface of the air duct (11) via a sealed bearing. The air duct (11) is connected to a silent turbine fan (12). The protective cover (3) has a cooling water pipe (13) connected through it. The cooling water pipe (13) has a nozzle (14) installed on its surface. The cooling water pipe (13) has a solenoid valve installed on its surface.

2. A vertical edge grinding machine for marble manufacturing according to claim 1, characterized in that: The inner side of the protective cover (3) is adhered with centrifugal glass wool (18), the inner side of the centrifugal glass wool (18) is adhered with damping pad (17), the inner side of the damping pad (17) is adhered with open-cell polyurethane foam (16), and the inner side of the open-cell polyurethane foam (16) is fitted with irregular protruding ribs (15) by bolts.

3. A vertical edge grinding machine for marble manufacturing according to claim 2, characterized in that: The irregular protruding rib (15) has a triangular cross section.

4. A vertical edge grinding machine for marble manufacturing according to claim 3, characterized in that: An electric cylinder (5) is mounted on the lower surface of the platform (1) via a flange structure, and a processing table (4) is fixed to the piston end of the electric cylinder (5).

5. A vertical edge grinding machine for marble manufacturing according to claim 4, characterized in that: The side surface of the platform (1) is fully welded with legs (6), and the lower surface of the legs (6) is equipped with shock-absorbing pads.

6. A vertical edge grinding machine for marble manufacturing according to claim 5, characterized in that: An integrated controller (19) is installed on the side surface of the upright plate (2) by means of anti-loosening bolts.

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