Marble grinding device

Abstract

The utility model relates to the technical field of marble grinding machines, in particular to a marble grinding device which increases the contact area with marble during grinding and improves the grinding effect by arranging a grinding device, and adopts a wet grinding mode to grind the marble by arranging a spraying device. The formation of scratches and fractures can be reduced, and the product quality is improved; comprising a body; the conveying device, the grinding device, the spraying device, the recycling device and the guiding device are all mounted on the machine body; the machine body provides support, the conveying device conveys marbles, the grinding device grinds the marbles, the spraying device sprays, cools and cleans the marbles and the grinding device during grinding, the recycling device recycles waste water generated by the spraying device, and the guiding device facilitates alignment of the marbles and the conveying device by workers.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of marble polishing machine, in particular to a kind of marble polishing device. BACKGROUND

[0002] Marble is a kind of commonly used building decoration material, in order to improve its quality, marble needs to be polished.

[0003] The existing marble polishing machine, such as the Chinese utility model patent for a kind of marble cleaning and polishing device with the authorization announcement number CN217992015U, is representative of one kind of prior art, which mainly includes a conveyor belt, a polishing roller, an air suction fan and an absorption box. The conveyor belt transports the marble, the polishing roller polishes the marble, and the air suction fan and the absorption box cooperate to absorb the dust generated during polishing.

[0004] However, the existing technical equipment still has the following problems when in use: the existing machine has a small contact area with the marble during polishing, resulting in poor polishing effect. Moreover, the existing machine polishes the marble using a dry polishing method with a polishing roller, which is prone to cause small scratches and cracks, resulting in poor product quality. INVENTION CONTENTS

[0005] To solve the above technical problems, the utility model provides a marble polishing device by setting a polishing device, increasing the contact area with the marble during polishing, improving the polishing effect, and setting a spraying device, polishing the marble using a wet polishing method, which can reduce the formation of scratches and cracks and improve product quality.

[0006] The utility model discloses a kind of marble polishing devices, including body;Further including conveying device, polishing device, spraying device, recycling device and guiding device, conveying device, polishing device, spraying device, recycling device and guiding device are all installed on body;Body provides support, conveying device transports marble, polishing device polishes marble, spraying device sprays cooling and cleaning marble and polishing device during polishing, recycling device recycles waste water generated by spraying device, guiding device is convenient for worker to align marble and conveying device.

[0007] Preferably, the body includes two supports one, two supports two, four supports three and four supports four, two supports two and two supports four are respectively installed at the top of two supports one, and four supports four are respectively located at the front and rear sides of two supports two, one mounting groove one is respectively arranged on the right two supports four and support two, four supports three are respectively installed on the top of two supports two, and one mounting groove two and one set of through holes are respectively arranged on four supports three;Provide support.

[0008] Preferably, the conveying device comprises a plurality of rotating shafts I, a conveyor belt, a speed reducer I and a motor I, the rotating shafts I are rotatably installed on the two supports I, the conveyor belt is installed on the rotating shafts I, and the conveyor belt is uniformly and spacedly provided with a plurality of drainage grooves at the side ends, the speed reducer I is fixedly installed on the side end of one support I, and the speed reducer I is rotatably connected between the support I and one rotating shaft I, and the motor I is fixedly installed on the side end of the speed reducer I, and the motor I provides power to the rotating shaft I connected thereto through the speed reducer I; the motor I provides power to drive the conveyor belt to run to convey the marble, the drainage grooves facilitate rapid drainage of liquid, improve the friction between the conveyor belt and the marble, and improve the conveying effect.

[0009] Preferably, the polishing device comprises rotating shafts II, four cylinders, four supports V, two rotating shafts III, two buffer sleeves, a polishing belt, a speed reducer II and a motor II, the rotating shafts II are rotatably installed on the top of the two supports II, the four cylinders are fixedly installed in the four installation grooves II of the four supports III respectively, the four supports V are installed at the bottom ends of the four cylinders respectively, and the four supports V are provided at the top ends with a group of guide rods in sliding fit with the four groups of through holes of the four supports III respectively, the four supports V are provided with a sliding groove respectively, the two rotating shafts III are rotatably installed in the four sliding grooves of the four supports V respectively, and the two rotating shafts III are provided at the side ends with two elastic elements in contact with the four rotating shafts III respectively, and the elastic elements keep the two rotating shafts III away from each other when there is no external force, the two buffer sleeves are fixedly sleeved on the side ends of the two rotating shafts III, the polishing belt is installed on the rotating shafts II and the two polishing belts, the speed reducer II is fixedly installed on the side end of one support II, and the speed reducer II is rotatably connected between the support II and the rotating shaft II, and the motor II is fixedly installed on the side end of the speed reducer II, and the motor II provides power to the rotating shaft II connected thereto through the speed reducer II; the cylinder provides power to drive the rotating shaft III to move up and down, the rotating shaft III moves up and down to drive the rotating shaft III to move and contact the marble, which facilitates the processing of marbles of different thicknesses, the motor II provides power to drive the polishing belt to run to polish the marble, and the buffer sleeve and the cylinder cooperate to buffer the vibration generated during polishing to reduce the damage to the marble caused by polishing.

[0010] Preferably, the spraying device comprises a support six, a water tank, a gear pump, a reducer three, a motor three, a pipeline one and three groups of spray heads, the support six is fixedly installed on the ground, the water tank is installed at the top end of the support six, a drain port is arranged at the top end of the water tank, a water inlet is arranged at the side end of the water tank, the gear pump is fixedly installed at the top end of the drain port of the water tank, the reducer three is fixedly installed at the side end of the gear pump, the motor three is fixedly installed at the side end of the reducer three, and the motor three provides power to the gear pump through the reducer three, one end of the pipeline one is installed at the top end of the gear pump, the other end of the pipeline one is provided with three branch pipes, the three branch pipes pass through three installation grooves of two supports two and four supports four and are installed on the two supports two and four supports four, respectively, and the aperture of the spray heads in the middle is smaller than that of the other two groups of spray heads; the motor three provides power to drive the gear pump to operate to pump the water in the water tank into the pipeline one and spray it out through the spray heads, wherein the spray heads in front spray the marble to wet the surface of the marble, so that the marble is wet polished to improve the polishing quality and prolong the service life of the polishing belt, the spray heads in the middle spray a small amount of water on the inner side of the polishing belt to cool the polishing belt while preventing a large amount of water from being splashed by the polishing belt, and the spray heads at the back spray the marble again to clean the residual stone powder on the surface of the marble.

[0011] Preferably, the recycling device comprises a water guide plate, a wastewater tank, two sludge pumps, a pipeline two, two supports seven, an inclined plate sedimentation tank, a pipeline three and a pipeline filter membrane, the water guide plate is installed on the two supports one, and the water guide plate is inclined forward, the wastewater tank is installed at the front end of the two supports one, one sludge pump is fixedly installed on the ground, and the one sludge pump is connected in communication with the wastewater tank, one end of the pipeline two is installed on the one sludge pump, the two supports seven are installed on the ground, the inclined plate sedimentation tank is installed on the two supports seven, the other end of the pipeline two is installed on the inclined plate sedimentation tank, the other sludge pump is fixedly installed on the inclined plate sedimentation tank, and the other sludge pump is connected in communication with the inclined plate sedimentation tank, one end of the pipeline three is installed on the other sludge pump, the other end of the pipeline three is installed at the water inlet of the water tank, and the pipeline filter membrane is installed in communication on the pipeline three; the water guide plate guides the wastewater to flow into the wastewater tank, the sludge pump provides power to pump the wastewater in the wastewater tank into the inclined plate sedimentation tank, the inclined plate sedimentation tank quickly settles the large-particle sludge in the wastewater, the remaining small-particle sludge is transported with the wastewater to the inside of the pipeline filter membrane, the pipeline filter membrane filters and separates the small-particle sludge in the wastewater, and the clean water is returned to the inside of the water tank, so that the wastewater is recycled and utilized.

[0012] Preferably, the guiding device comprises two bracket eights and two groups of guiding rollers, the two bracket eights are symmetrically installed at the front of the top of the two bracket ones, two groups of installation grooves three are symmetrically arranged on the two bracket eights, and the two groups of guiding rollers are rotatably installed in the two groups of installation grooves three of the two bracket eights; the bracket eight guides the marble, and the freely rotating guiding roller can reduce the friction between the marble and the bracket eight, so that the worker can conveniently send the marble into the machine.

[0013] Compared with the prior art, the marble polishing machine has the beneficial effects that: the contact area with the marble during polishing is increased, so that the polishing effect is improved; and the marble is polished in a wet polishing mode, so that the formation of scratches and cracks is reduced, and the product quality is high. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is the axonometric structure schematic diagram of the utility model;

[0015] Figure 2 is the axonometric structure schematic diagram of the fuselage;

[0016] Figure 3 is the axonometric structure schematic diagram of the conveying device;

[0017] Figure 4 is the axonometric structure schematic diagram of the polishing device;

[0018] Figure 5 is the axonometric structure schematic diagram of the spraying device;

[0019] Figure 6 is the axonometric structure schematic diagram of the recycling device;

[0020] Figure 7 is the axonometric structure schematic diagram of the guiding device.

[0021] Markings in the drawings: 01, fuselage; 11, bracket one; 12, bracket two; 13, bracket three; 14, bracket four; 02, conveying device; 21, rotating shaft one; 22, conveying belt; 23, speed reducer one; 24, motor one; 03, polishing device; 31, rotating shaft two; 32, air cylinder; 33, bracket five; 34, rotating shaft three; 35, buffer sleeve; 36, polishing belt; 37, speed reducer two; 38, motor two; 04, spraying device; 41, bracket six; 42, water tank; 43, gear pump; 44, speed reducer three; 45, motor three; 46, pipeline one; 47, spray head; 05, recycling device; 51, water guide plate; 52, waste water tank; 53, sludge pump; 54, pipeline two; 55, bracket seven; 56, inclined plate sedimentation tank; 57, pipeline three; 58, pipeline filter membrane; 06, guiding device; 61, bracket eight; 62, guiding roller. DETAILED DESCRIPTION

[0022] For the purpose of facilitating the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The present application can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive. Embodiment 1

[0023] The utility model provides a marble processing device, including fuselage 01, still include conveying device 02, polishing device 03, spray device 04, recycling device 05 and guiding device 06, conveying device 02, polishing device 03, spray device 04, recycling device 05 and guiding device 06 all are installed on fuselage 01, fuselage 01 provides support, conveying device 02 carries out conveying to marble, polishing device 03 carries out polishing to marble, spray device 04 carries out spray cooling cleaning to marble and polishing device 03 when polishing, recycling device 05 carries out recycling to the waste water of spray device 04, guiding device 06 is convenient for worker to align marble and conveying device 02,

[0024] The fuselage 01 includes two supports one 11, two supports two 12, four supports three 13 and four supports four 14, two supports two 12 and two supports four 14 are installed at the top of two supports one 11 respectively, and four supports four 14 are located at the front and back sides of two supports two 12 respectively, one mounting groove one is arranged on each of the right two supports four 14 and the support two 12, four supports three 13 are installed at the top of two supports two 12 respectively, and one mounting groove two and one set of through holes are arranged on each of the four supports three 13; the conveying device 02 includes a plurality of rotating shafts one 21, a conveyor belt 22, a speed reducer one 23 and a motor one 24, the plurality of rotating shafts one 21 are all rotationally installed on two supports one 11, the conveyor belt 22 is installed on the plurality of rotating shafts one 21, and a plurality of drainage grooves are uniformly and intermittently arranged on the side ends of the conveyor belt 22, the speed reducer one 23 is fixedly installed on the side end of one support one 11, and the speed reducer one 23 rotationally connects between the one support one 11 and one rotating shaft one 21, the motor one 24 is fixedly installed on the side end of the speed reducer one 23, and the motor one 24 provides power to one rotating shaft one 21 connected through the speed reducer one 23; the polishing device 03 includes a rotating shaft two 31, four cylinders 32, four supports five 33, two rotating shafts three 34, two buffer sleeves 35, a polishing belt 36, a speed reducer two 37 and a motor two 38, the rotating shaft two 31 is rotationally installed at the top of two supports two 12, the four cylinders 32 are fixedly installed in the four mounting grooves two of the four supports three 13 respectively, the four supports five 33 are installed at the bottom ends of the four cylinders 32 respectively, and one set of guide rods are slidably matched with the four sets of through holes of the four supports three 13 at the top ends of the four supports five 33, one sliding groove is arranged on each of the four supports five 33, two rotating shafts three 34 are slidably and rotationally installed in the four sliding grooves of the four supports five 33 respectively, two elastic elements are rotationally arranged at the side ends of the two rotating shafts three 34 respectively and keep contact with the four rotating shafts three 34, and the elastic elements keep the two rotating shafts three 34 away from each other when there is no other external force, the two buffer sleeves 35 are fixedly sleeved at the side ends of the two rotating shafts three 34 respectively, the polishing belt 36 is installed on the rotating shaft two 31 and the two polishing belts 36, the speed reducer two 37 is fixedly installed at the side end of one support two 12, and the speed reducer two 37 rotationally connects between the one support two 12 and the rotating shaft two 31, the motor two 38 is fixedly installed at the side end of the speed reducer two 37, and the motor two 38 provides power to the rotating shaft two 31 connected through the speed reducer two 37.The spraying device 04 includes a support six 41, a water tank 42, a gear pump 43, a reducer three 44, a motor three 45, a pipeline one 46 and three groups of spray heads 47, the support six 41 is fixedly installed on the ground, the water tank 42 is installed at the top end of the support six 41, a drain port is arranged at the top end of the water tank 42, a water inlet is arranged at the side end of the water tank 42, the gear pump 43 is fixedly installed at the top end of the drain port of the water tank 42, the reducer three 44 is fixedly installed at the side end of the gear pump 43, the motor three 45 is fixedly installed at the side end of the reducer three 44, and the motor three 45 provides power to the gear pump 43 through the reducer three 44, one end of the pipeline one 46 is installed at the top end of the gear pump 43, the other end of the pipeline one 46 is provided with three branch pipes, the three branch pipes pass through three installation grooves of the two support two 12 and the two support four 14 and are installed on the two support two 12 and the four support four 14, respectively, three groups of spray heads 47 are uniformly and spacedly installed at the bottom end of the three branch pipes, and the aperture of the spray heads 47 in the middle is smaller than that of the other two groups of spray heads 47; the recycling device 05 includes a water guide plate 51, a wastewater tank 52, two sludge pumps 53, a pipeline two 54, two support seven 55, an inclined plate sedimentation tank 56, a pipeline three 57 and a pipeline filter membrane 58, the water guide plate 51 is installed on the two support one 11, and the water guide plate 51 is inclined to the front, the wastewater tank 52 is installed at the front end of the two support one 11, one sludge pump 53 is fixedly installed on the ground, and the one sludge pump 53 is connected in communication with the wastewater tank 52, one end of the pipeline two 54 is installed on the one sludge pump 53, the two support seven 55 are installed on the ground, the inclined plate sedimentation tank 56 is installed on the two support seven 55, the other end of the pipeline two 54 is installed on the inclined plate sedimentation tank 56, the other sludge pump 53 is fixedly installed on the inclined plate sedimentation tank 56, and the other sludge pump 53 is connected in communication with the inclined plate sedimentation tank 56, one end of the pipeline three 57 is installed on the other sludge pump 53, the other end of the pipeline three 57 is installed at the water inlet of the water tank 42, and the pipeline filter membrane 58 is installed in communication on the pipeline three 57;

[0025] First, the marble is placed on the conveyor belt 22, then the motor 1 24 is opened, the motor 1 24 provides power to drive the conveyor belt 22 to run to transport the marble, the drain groove quickly discharges the liquid, improves the friction between the conveyor belt 22 and the marble, and improves the conveying effect, then open the cylinder 32, motor 2 38, motor 3 45 and sludge pump 53, the cylinder 32 provides power to drive the rotating shaft 3 34 up and down, the rotating shaft 3 34 up and down drives the rotating shaft 3 34 to move and contact the marble, which facilitates the processing of marbles of different thicknesses, the motor 2 38 provides power to drive the polishing belt 36 to run to polish the marble, and the buffer sleeve 35 and the cylinder 32 cooperate to buffer the vibration generated by polishing, reducing the damage to the marble caused by polishing, the motor 3 45 provides power to drive the gear pump 43 to run to pump the water in the water tank 42 into the pipeline 1 46 and spray it out through the nozzle 47, of which the front group of nozzles 47 sprays the marble to wet the surface of the marble, thereby wet polishing the marble to improve the polishing quality and prolong the service life of the polishing belt 36, the middle group of nozzles 47 sprays a small amount of water to the inside of the polishing belt 36, preventing a large amount of water from being thrown by the polishing belt 36 while cooling the polishing belt 36, and the rear group of nozzles 47 sprays the marble again to clean the residual stone powder on the surface of the marble, the water guide plate 51 guides the wastewater to flow into the wastewater tank 52, and the sludge pump 53 provides power to pump the wastewater in the wastewater tank 52 into the inclined plate sedimentation tank 56, which quickly settles the large particles of sludge in the wastewater, and the remaining small particles of sludge are transported with the wastewater into the pipeline filter membrane 58, which filters and separates the small particles of sludge in the wastewater, allowing clean water to flow back into the water tank 42, thereby realizing the recycling of wastewater. Example 2

[0026] Based on example 1, it further includes:

[0027] The guide device 06 includes two supports 8 61 and two groups of guide rollers 62, two supports 8 61 are symmetrically installed at the top front of two supports 1 11, two groups of installation grooves 3 are symmetrically arranged on two supports 8 61, and two groups of guide rollers 62 are respectively rotatably installed in two groups of installation grooves 3 of two supports 8 61;

[0028] First, the marble is placed on the conveyor belt 22, the bracket eight 61 guides the marble, the freely rotating guide roller 62 can reduce the friction between the marble and the bracket eight 61, facilitate workers to send the marble into the machine, then open the motor 24, the motor 24 provides power, drives the conveyor belt 22 to run to transport the marble, the drain groove facilitates quick liquid discharge, improves the friction between the conveyor belt 22 and the marble, improves the conveying effect, then open the cylinder 32, motor two 38, motor three 45 and sludge pump 53, the cylinder 32 provides power, drives the rotating shaft three 34 up and down movement, the rotating shaft three 34 up and down movement drives the rotating shaft three 34 movement contact marble, convenient for processing different thickness of marble, motor two 38 provides power, drives the polishing belt 36 to run to polish the marble, the buffer sleeve 35 and the cylinder 32 cooperate to buffer the vibration generated by polishing, reduce the damage of marble due to polishing, motor three 45 provides power, drives the gear pump 43 to run to pump the water in the water tank 42 into the pipeline one 46 and sprays out through the nozzle 47, among them A group of nozzles 47 in front of the marble is sprayed, the marble surface is moistened, so as to wet polishing of the marble, improve the polishing quality and prolong the service life of the polishing belt 36, a group of nozzles 47 in the middle of the polishing belt 36 inside is sprayed a little, while preventing a large amount of water from being thrown by the polishing belt 36, the polishing belt 36 is cooled, a group of nozzles 47 in the rear of the marble is sprayed twice, the marble surface is cleaned, the water guide plate 51 guides the waste water, the waste water flows into the waste water tank 52, the sludge pump 53 provides power, pumps the waste water in the waste water tank 52 into the inclined plate sedimentation tank 56, the inclined plate sedimentation tank 56 quickly settles the large particles of sludge in the waste water, the remaining small particles of sludge is transported with the waste water into the pipeline filter membrane 58, the pipeline filter membrane 58 filters and separates the small particles of sludge in the waste water, makes the clean water return to the water tank 42, so as to realize the recycling of waste water.

[0029] As Figures 1 to 7As shown, the marble polishing device, when working, first places the marble on the conveyor belt 22, the bracket eight 61 guides the marble, the freely rotating guide roller 62 can reduce the friction between the marble and the bracket eight 61, the worker conveniently sends the marble into the machine, then opens the motor one 24, the motor one 24 provides power, drives the conveyor belt 22 to run and transports the marble, the drain groove conveniently and quickly discharges liquid, improves the friction between the conveyor belt 22 and the marble, and improves the conveying effect, then opens the cylinder 32, the motor two 38, the motor three 45 and the sludge pump 53, the cylinder 32 provides power, drives the rotating shaft three 34 to move up and down, the rotating shaft three 34 moves up and down to drive the rotating shaft three 34 to move and contact the marble, conveniently processes the marble of different thicknesses, the motor two 38 provides power, drives the polishing belt 36 to run and polishes the marble, the buffer sleeve 35 and the cylinder 32 cooperate to buffer the vibration generated during polishing, reduce the damage of the marble due to polishing, the motor three 45 provides power, drives the gear pump 43 to run, and the water in the water tank 42 is pumped into the pipeline one 46 and sprayed out through the nozzle 47, wherein the front group of nozzles 47 sprays the marble, and the marble surface is wetted, so that the marble is wet polished, the polishing quality is improved, and the service life of the polishing belt 36 is prolonged, the middle group of nozzles 47 sprays a small amount of water on the inner side of the polishing belt 36, prevents a large amount of water from being thrown by the polishing belt 36, and cools the polishing belt 36, the rear group of nozzles 47 sprays the marble again, and the residual stone powder on the surface of the marble is cleaned, the water guide plate 51 guides the wastewater, and the wastewater flows into the wastewater tank 52, the sludge pump 53 provides power, and the wastewater in the wastewater tank 52 is pumped into the inclined plate sedimentation tank 56, the inclined plate sedimentation tank 56 quickly settles the large particle sludge in the wastewater, the remaining small particle sludge is transported into the pipeline filter membrane 58 with the wastewater, the pipeline filter membrane 58 filters and separates the small particle sludge in the wastewater, and the clean water flows back to the water tank 42, so that the wastewater is recycled and utilized.

[0030] The motor one 24, the four cylinders 32, the polishing belt 36, the motor two 38, the gear pump 43, the motor three 45, the three groups of nozzles 47, the two sludge pumps 53, the inclined plate sedimentation tank 56 and the pipeline filter membrane 58 are purchased on the market, and the technical personnel in the industry only need to install and operate according to the attached instruction manual, without the technical personnel in the field paying creative labor.

[0031] The main function realized by the utility model is: through setting the polishing device 03, increase the contact area with the marble when polishing, improve the polishing effect, and through setting the spraying device 04, adopt the wet type polishing mode to polish the marble, can reduce the formation of scratch and fracture, improve product quality; The existing machine is small in contact area with the marble when polishing, which leads to poor polishing effect, and the existing machine adopts the dry polishing mode of the polishing roller to polish the marble, which is easy to produce small scratches and fractures, leading to poor product quality.

[0032] The above is only the preferred embodiment of the utility model, and it should be pointed out that for ordinary skilled persons in the technical field, several improvements and modifications can be made without departing from the technical principles of the utility model, and these improvements and modifications should also be considered as the protection scope of the utility model.

Claims

1. A marble polishing device, comprising a body (01); characterized in that, It also includes a conveying device (02), a polishing device (03), a spraying device (04), a recycling device (05), and a guiding device (06). The conveying device (02), polishing device (03), spraying device (04), recycling device (05), and guiding device (06) are all installed on the machine body (01). The machine body (01) provides support. The conveying device (02) conveys the marble. The polishing device (03) polishes the marble. The spraying device (04) sprays the marble and the polishing device (03) to cool and clean them during polishing. The recycling device (05) recycles the wastewater generated by the spraying device (04). The guiding device (06) facilitates workers to align the marble and the conveying device (02).

2. The marble polishing device as described in claim 1, characterized in that, The body (01) includes two brackets one (11), two brackets two (12), four brackets three (13) and four brackets four (14). The two brackets two (12) and the two brackets four (14) are respectively installed on the top of the two brackets one (11), and the four brackets four (14) are respectively located on the front and rear sides of the two brackets two (12). The two brackets four (14) and the brackets two (12) on the right are respectively provided with a mounting groove one. The four brackets three (13) are respectively installed on the top of the two brackets two (12), and the four brackets three (13) are respectively provided with a mounting groove two and a set of through holes.

3. The marble polishing device as described in claim 2, characterized in that, The conveying device (02) includes multiple rotating shafts (21), a conveyor belt (22), a reducer (23), and a motor (24). The multiple rotating shafts (21) are rotatably mounted on two supports (11). The conveyor belt (22) is mounted on the multiple rotating shafts (21), and multiple drainage grooves are evenly spaced on the side of the conveyor belt (22). The reducer (23) is fixedly mounted on the side of a support (11), and the reducer (23) is rotatably connected between the support (11) and a rotating shaft (21). The motor (24) is fixedly mounted on the side of the reducer (23), and the motor (24) provides power to a rotating shaft (21) connected to it through the reducer (23).

4. The marble polishing device as described in claim 3, characterized in that, The grinding device (03) includes a second rotating shaft (31), four cylinders (32), four brackets (33), two third rotating shafts (34), two buffer sleeves (35), a grinding belt (36), a second reducer (37), and a second motor (38). The second rotating shaft (31) is rotatably mounted on the top of the two second brackets (12). The four cylinders (32) are respectively fixedly mounted in the four mounting slots (2) of the four third brackets (13). The four fifth brackets (33) are respectively mounted on the bottom of the four cylinders (32). The top of each of the four fifth brackets (33) is provided with a set of guide rods that slide in cooperation with the four sets of through holes of the four third brackets (13). Each of the four fifth brackets (33) is provided with a sliding groove. The two third rotating shafts (34) are respectively slidably mounted on the four fifth brackets (33). In each groove, and on the side ends of the two rotating shafts (34), two elastic elements are respectively rotatably provided to maintain contact with the four rotating shafts (34), and the elastic elements keep the two rotating shafts (34) away from each other when there is no other external force. Two buffer sleeves (35) are respectively fixedly fitted on the side ends of the two rotating shafts (34). Grinding belts (36) are installed on the rotating shaft (31) and the two grinding belts (36). The reducer (37) is fixedly installed on the side end of a bracket (12), and the reducer (37) passes through the bracket (12) and is rotatably connected to the rotating shaft (31). The motor (38) is fixedly installed on the side end of the reducer (37), and the motor (38) provides power to the rotating shaft (31) connected to it through the reducer (37).

5. A marble polishing device as described in claim 4, characterized in that, The spraying device (04) includes a support six (41), a water tank (42), a gear pump (43), a reducer three (44), a motor three (45), a pipe one (46), and three sets of nozzles (47). The support six (41) is fixedly installed on the ground. The water tank (42) is installed on the top of the support six (41). The top of the water tank (42) is provided with a drain outlet, and the side of the water tank (42) is provided with a water inlet. The gear pump (43) is fixedly installed on the top of the drain outlet of the water tank (42). The reducer three (44) is fixedly installed on the side of the gear pump (43), and the motor three (45) is fixedly installed on the reducer. The device is located at the side end of the third (44), and the motor (45) provides power to the gear pump (43) through the reducer (44). One end of the pipe (46) is installed at the top of the gear pump (43), and the other end of the pipe (46) is provided with three branch pipes. The three branch pipes pass through the three mounting slots of the second bracket (12) and the two fourth brackets (14) respectively and are installed on the two second brackets (12) and the four fourth brackets (14). The three sets of nozzles (47) are evenly spaced at the bottom of the three branch pipes, and the diameter of the middle set of nozzles (47) is smaller than that of the other two sets of nozzles (47).

6. A marble polishing device as described in claim 5, characterized in that, The recycling device (05) includes a water guide plate (51), a wastewater tank (52), two sludge pumps (53), a second pipe (54), two seventh supports (55), an inclined plate sedimentation tank (56), a third pipe (57), and a pipe filter membrane (58). The water guide plate (51) is installed on two first supports (11) and is inclined forward. The wastewater tank (52) is installed at the front end of the two first supports (11). A sludge pump (53) is fixedly installed on the ground and is connected to the wastewater tank (52). One end of the second pipe (54) is installed on the second pipe. On the sludge pump (53), two brackets seven (55) are installed on the ground. The inclined plate sedimentation tank (56) is installed on the two brackets seven (55). The other end of pipe two (54) is installed on the inclined plate sedimentation tank (56). Another sludge pump (53) is fixedly installed on the inclined plate sedimentation tank (56), and the other sludge pump (53) and the inclined plate sedimentation tank (56) are connected. One end of pipe three (57) is installed on the other sludge pump (53), and the other end of pipe three (57) is installed at the inlet of the water tank (42). Pipe filter membrane (58) is connected to pipe three (57).

7. A marble polishing device as described in claim 6, characterized in that, The guiding device (06) includes two brackets (61) and two sets of guide rollers (62). The two brackets (61) are symmetrically installed at the front of the top of the two brackets (11). Two sets of mounting grooves are symmetrically arranged on the two brackets (61). The two sets of guide rollers (62) are rotatably installed in the two sets of mounting grooves of the two brackets (61).

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