Polishing equipment for stone machining and grinding tool of polishing equipment

Abstract

The invention particularly relates to polishing equipment for stone machining and a grinding tool thereof, and relates to the technical field of stone machining, the polishing equipment comprises a lower polishing table and an upper polishing table which are the same in structure and are oppositely arranged, two mounting frames used for mounting the lower polishing table and the upper polishing table correspondingly, and a dustproof sleeve arranged between the lower polishing table and the upper polishing table; the lower grinding table and the upper grinding table can reversely rotate and grind the upper side and the lower side of the stone slab in the dustproof sleeve, vertical synchronous grinding is achieved, the synchronous grinding mode can effectively guarantee the grinding uniformity of the surface of the round stone slab, and the appearance quality and the grinding efficiency of stone products are improved; the upper polishing table and the lower polishing table can be inserted from the upper pipe opening and the lower pipe opening of the dustproof sleeve in a matched mode, the outer sides of fixing blocks of the lower polishing table and the upper polishing table are sleeved with dust plug discs, the positions of the dust plug discs can be flexibly adjusted up and down, and after the upper dust plug disc and the lower dust plug disc are plugged into the dustproof sleeve, the air bag ring is elastically attached to the inner wall of the dustproof sleeve. A closed grinding space is formed in the middle of the dustproof sleeve.

Description

Technical Field

[0001] The present invention specifically relates to a polishing device and a grinding tool for stone processing, and relates to the technical field of stone processing. Background Art

[0002] Round stone slabs usually include round stone slab tables, decorative panels, garden stone piers and other products. In the field of stone processing, especially in the processing of round stone slabs, the grinding process is very important. With the increasing demand for stone products in industries such as architectural decoration and handicraft production, higher requirements are also put forward for the efficiency, quality and safety of stone grinding. Round stone slabs are favored in many application scenarios for their unique aesthetics. When grinding round stone slabs, the existing grinding tools cannot effectively grind up and down synchronously, which is not only inefficient, but may also over-grind certain areas of the slab, resulting in uneven grinding of the stone surface, affecting the appearance quality of the stone products; and the existing grinding equipment is in an open environment during grinding, and a large amount of debris and dust will be generated during the stone grinding process. Due to the lack of effective The closed or dust-collecting structure of the equipment will cause these debris and dust to spread in the working environment. A large amount of debris and dust will not only pollute the working environment and endanger the health of the operators. Long-term inhalation may lead to respiratory diseases, etc., but also affect the service life of the equipment. Dust entering some precision parts of the equipment may cause wear or failure. At the same time, during the grinding process of this equipment, the high-speed rotating abrasive and the flying debris may cause harm to the operator. Without proper protective structure, the operator faces greater safety risks. Therefore, due to the combined influence of the above-mentioned abrasive asynchronism, environmental openness and lack of safety protection, the overall grinding efficiency and stability need to be improved. It is urgent to propose a polishing equipment and abrasive for stone processing to improve the above-mentioned problems and improve the quality, efficiency and safety of stone processing. Summary of the invention

[0003] In view of the deficiencies in the prior art, the object of the present invention is to provide a polishing device and a grinding tool for stone processing to solve the problems mentioned in the above background technology.

[0004] In order to achieve the above-mentioned object, the present invention is realized by the following technical scheme: a grinding tool, comprising a lower grinding table and an upper grinding table of the same structure and arranged opposite to each other, two mounting frames for mounting the lower grinding table and the upper grinding table respectively, and a dust-proof sleeve arranged between the lower grinding table and the upper grinding table, wherein the upper grinding table and the lower grinding table can be respectively inserted into the upper and lower pipe openings of the dust-proof sleeve to form a closed grinding space; The lower grinding table structure includes a fixed block locked and mounted on the mounting frame, a rotating shaft connected by a central shaft of the fixed block, a connecting plate fixed on the top of the rotating shaft, and a grinding plate mounted on the upper side of the connecting plate. The upper side of the fixed block and the lower side of the connecting plate are rotatably fitted and supported. A grinding motor is installed on the mounting frame, and the grinding motor is connected to the rotating shaft through a transmission belt. The grinding plates of the lower grinding table and the upper grinding table rotate in opposite directions to grind the upper and lower sides of the stone slab in a closed grinding space. The outer side of the fixed block is provided with a dust plug tray which can be adjusted up and down. The outer diameter of the dust plug tray is larger than the outer diameter of the grinding plate, and the dust plug tray is located directly below the grinding plate to collect dust. A cylinder hole connected to the outside air is provided at the bottom of the dust plug tray. The cylinder hole of the lower grinding table is connected to the air suction end of the external vacuum cleaner through an air pipe, and the cylinder hole of the upper grinding table is connected to the air outlet end of the external vacuum cleaner through an air pipe, so that the air in the closed grinding space can be circulated and filtered, which can effectively remove the dust generated during the grinding process and maintain the reasonable flow of air in the closed space, thereby further improving the dust treatment efficiency. Air bag rings are respectively fixed on the upper and lower edges of the dust plug tray, and are elastically attached to the inner wall of the dustproof sleeve through the air bag rings.

[0005] A further improvement based on the above technical solution is that a V-shaped scraper is installed on one side of the bottom of the connecting plate through a telescopic adjustment rod. The V-shaped scraper can fit closely on the inner bottom of the dust plug pan, and the middle turning point of the V-shaped scraper corresponds to the upper side of the air cylinder hole. The V-shaped scraper rotates with the connecting plate to scrape the dust on the bottom of the dust plug pan into the air cylinder hole.

[0006] The above technical solution is further improved as follows: a cleaning assembly is provided in the dust plug disc, and the cleaning assembly is installed on the other side of the bottom of the connecting plate. The cleaning assembly structure includes a vertical plug rod, a movable sleeve, a rotating gear and a cleaning brush. The top of the vertical plug rod is screwed to one side of the bottom of the connecting plate, and the movable sleeve is movably sleeved on the lower side of the vertical plug rod. The cleaning brush is installed on the lower side of the rotating gear and contacts the inner side of the dust plug disc. A cleaning assembly and a V-shaped scraper are provided in the dust plug disc. The V-shaped scraper can concentrate the dust at the bottom of the dust plug disc into the air cylinder hole. The cleaning assembly The cleaning brush of the component can clean the bottom of the inner plate of the dust plug pan again, and it is helpful to lift the dust in the closed grinding space during cleaning. Combined with the blowing and suction effect of the vacuum cleaner, the dust can be more easily sucked into the air cylinder hole of the lower grinding table, which greatly improves the dust treatment effect and efficiency. Furthermore, the bottom of the movable sleeve is locked and connected with the upper side of the rotating gear, and a return spring is provided on the inner side of the movable sleeve. The upper side of the rotating gear is elastically connected with the bottom of the vertical plug rod through the return spring. The cleaning brush elastically contacts the inner side of the dust plug pan under the action of the return spring, and is more flexible and applicable to use.

[0007] Further improvements based on the above technical solution are: a plurality of mounting holes are opened on the upper side of the fixed block, the lower side of the dust plug tray is locked on the mounting holes by screws, a gear ring is fixed on the middle part of the inner side of the dust plug tray, the V-shaped scraper blade and the gear ring are staggered up and down, the gear ring is meshed with the rotating gear for transmission, so that the cleaning brush rotates along the outer side of the gear ring and rotates on its own at the same time, further improving the dust cleaning efficiency and ensuring that the dust in the dust plug tray can be effectively collected and processed.

[0008] Further improvements based on the above technical solution are: a plurality of correction components for pushing the outer periphery of the stone plate are distributed in an annular arrangement in the middle part of the dustproof sleeve, the correction components include a mounting base plate, an ejection telescopic rod and a movable frame, the mounting base plate is fixedly arranged on the outer periphery of the dustproof sleeve, the telescopic end of the ejection telescopic rod faces one side of the dustproof sleeve and is locked and mounted on the mounting base plate, the movable frame is fixedly installed on the telescopic end of the ejection telescopic rod, and the movable frame can make linear reciprocating displacement from the outside to the inside of the dustproof sleeve, and a rubber roller is rotatably installed on the front end shaft of the movable frame. After each ejection telescopic rod is extended, the rubber roller can push the outer peripheral surface of the stone plate to ensure the position accuracy of the stone during the grinding process.

[0009] In addition, a driven gear is fixed to the top shaft end of the rubber roller, and a rotating motor is installed on the inner side of the movable frame. A driving gear meshing with the driven gear is installed on the shaft end of the rotating motor. Therefore, the driving gear and the driven gear driven by the rotating motor enable the rubber roller to rotate. When the rubber roller is against the side of the stone slab, it can pass through and improve the grinding accuracy by accurately controlling the position of the stone. The rubber roller can control the rotation speed of the stone slab by the rotation of the motor drive. The latter limits the stone slab, further improving the grinding control effect, thereby helping to improve the grinding efficiency.

[0010] The cam is an angular movement between the two legs of the machine and the cam, and the cam is adapted to move the two legs together so as to allow the two legs to move up and down independently of each other.

[0011] Furthermore: sliding guide rods are vertically installed on both sides of the outer frame, and both sides of the two mounting frames are connected to the sliding guide rods for up and down sliding through sliders, and the rotating rod has a guiding effect on the mounting frame, combined with the guiding effect of the sliding guide rods.

[0012] Further: two first conveyor belts are relatively installed on the front and rear sides of the frame, and the lower grinding table, upper grinding table and dustproof sleeve are all located between the two first conveyor belts, wherein the upper horizontal line of the dustproof sleeve is not higher than the upper horizontal conveying position of the first conveyor belt.

[0013] Furthermore: a second conveyor belt and a telescopic push rod are respectively installed on the frames below the two first conveyor belts, the telescopic end of the telescopic push rod is arranged toward the second conveyor belt, and an arc-shaped push plate is fixed to the telescopic end of the telescopic push rod, the lower horizontal line of the arc-shaped push plate is higher than the upper horizontal conveying position of the second conveyor belt, and the upper horizontal line of the arc-shaped push plate is lower than the lower horizontal line of the dust sleeve, which improves the automation level of the equipment, makes the whole grinding process smoother, and further improves the overall processing efficiency.

[0014] By adopting the above technical solution, the present invention has the following advantages: The grinding tool of the present invention is provided with a lower grinding table and an upper grinding table with the same structure and arranged oppositely. The lower grinding table and the upper grinding table can grind the upper and lower sides of the stone plate in opposite directions in the dustproof sleeve, thereby realizing synchronous grinding of the upper and lower sides. This synchronous grinding method can effectively ensure the uniformity of grinding the surface of the circular stone plate, and improve the appearance quality and grinding efficiency of the stone products. The above-mentioned stone slab also has the function of collecting dust when double-grinding the upper and lower surfaces, and the upper grinding table and the lower grinding table can be respectively inserted into the upper and lower pipe openings of the dust-proof sleeve, and the outer sides of the fixed blocks of the lower grinding table and the upper grinding table are both provided with dust plug discs whose positions can be flexibly adjusted up and down. The outer diameter of the dust plug disc is larger than the outer diameter of the grinding plate and is used to collect dust, and after the upper and lower dust plug discs are inserted into the dust-proof sleeve, the air bag ring is elastically and tightly attached to the inner wall of the dust-proof sleeve, and the air bag ring can flexibly adapt to different inner diameters of dust-proof sleeves, so that a closed grinding space is formed in the middle of the dust-proof sleeve, which can effectively prevent debris and dust from spreading outward and reduce the impact on the working environment. The air cylinder hole of the lower grinding table is connected to the air suction end of the external vacuum cleaner through an air pipe, and the air cylinder hole of the upper grinding table is connected to the air outlet end of the external vacuum cleaner through an air pipe, so that the air in the closed grinding space can be circulated and filtered, which can effectively remove the dust generated during the grinding process and maintain the reasonable flow of air in the closed space, further improving the dust treatment efficiency; In addition, a cleaning component and a V-shaped scraper are provided in the dust plug disc, which can cooperate with the rotation of the connecting plate to effectively clean the closed grinding space and the dust inside the dust plug disc. The V-shaped scraper fits on the bottom of the inner disc of the dust plug disc, and the middle turning point corresponds to the upper side of the air cylinder hole. The V-shaped scraper can scrape the dust on the bottom of the dust plug disc into the air cylinder hole as the connecting plate rotates, and quickly scrape the deposited dust and debris into the air cylinder hole and collect them in the external vacuum cleaner to avoid long-term accumulation and overflow. The cleaning brush of the cleaning component can also rotate with the connecting plate to clean the bottom of the inner disc of the dust plug disc again after being scraped by the V-shaped scraper. When cleaning, it is also conducive to the dust being lifted in the closed grinding space. Combined with the blowing and suction effect of the above-mentioned vacuum cleaner, the dust can be more easily sucked into the air cylinder hole of the lower grinding table, greatly improving the dust treatment effect and efficiency. Furthermore, since the rotating gear of the cleaning component is meshed with the toothed ring in the middle of the inner side of the dust plug disc, the cleaning brush can rotate along the outer side of the toothed ring and rotate at the same time, which can further improve the dust cleaning efficiency and ensure that the dust in the dust plug disc can be effectively collected and processed. Moreover, the cleaning brush can be in elastic contact with the inner side of the dust plug disc under the action of the return spring, making the use of the entire cleaning brush more flexible and applicable. Among them, there are multiple ejection correction components arranged in a circular array in the middle of the dustproof sleeve, which can push the outer periphery of the stone plate to ensure the position accuracy of the stone during the grinding process. At the same time, the rubber roller of the ejection correction component can support the side of the stone plate, thereby controlling the rotation of the stone plate or limiting the rotation state, which is conducive to improving the grinding control effect and grinding efficiency; In addition, the rotating rods of the two driving mechanisms of the frame both guide the two mounting frames, and the transmission threads of the two rotating rods staggered up and down can also respectively thread-drive the lower grinding table and the upper grinding table to independently lift and displace, and combined with the guiding effect of the sliding guide rod, the up and down lifting of the lower grinding table and the upper grinding table can be flexibly and stably controlled; and two first conveyor belts are arranged on the frame, which can respectively convey stone slabs into the lower grinding table, and the two first conveyor belts can be switched for use, which can improve the efficiency of the entire plate feeding, and there is a second conveyor belt and a pushing telescopic rod under the two first conveyor belts to facilitate the discharge of stone slabs, improve the automation level of the equipment, make the entire grinding process smoother, and further improve the overall processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings: Figure 1 It is a schematic diagram of the structure of the grinding tool of the present invention; Figure 2 It is a schematic diagram of the exploded structure of the abrasive tool of the present invention; Figure 3 For the present invention Figure 2 Another perspective structural diagram of; Figure 4 It is a schematic diagram of the structure of the dust plug disc of the present invention; Figure 5 It is a structural schematic diagram of the cleaning assembly of the present invention; Figure 6 It is a structural schematic diagram of the polishing equipment for stone processing of the present invention; Figure 7 It is a partial structural schematic diagram of the polishing equipment for stone processing of the present invention; Figure 8 It is a structural schematic diagram of the grinding tool of the present invention in a grinding state; Fig. 9 It is a schematic diagram of the connection structure between the driving mechanism and the grinding tool of the present invention; Fig.10 It is a structural schematic diagram of the ejection correction assembly of the present invention; In the figure: lower grinding table 1, fixed block 10, rotating shaft 11, connecting plate 12, V-shaped scraper 121, cleaning assembly 122, vertical plug rod 1221, movable sleeve 1222, rotating gear 1223, cleaning brush 1224, return spring 1225, grinding plate 13, dust plug plate 14, cylinder hole 141, air bag ring 142, gear ring 143, mounting hole 15, upper grinding table 2, mounting frame 3, grinding motor 3 1. Transmission belt 32, mounting through hole 33, frame 4, dustproof sleeve 5, ejection correction assembly 51, mounting base plate 511, ejection telescopic rod 512, movable frame 513, rubber roller 514, driving gear 515, driving mechanism 6, outer frame 61, rotating rod 62, transmission thread 621, sliding guide rod 63, lifting motor 64, first conveyor belt 7, second conveyor belt 8, push telescopic rod 9, arc-shaped push plate 91. DETAILED DESCRIPTION

[0016] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0017] like Figure 1-10 As shown, the present invention provides a technical solution for a grinding tool, a grinding tool, comprising a lower grinding table 1 and an upper grinding table 2 with the same structure and arranged relatively to each other, two mounting frames 3 for mounting the lower grinding table 1 and the upper grinding table 2 respectively, and a dustproof sleeve 5 arranged between the lower grinding table 1 and the upper grinding table 2. The upper grinding table 2 and the lower grinding table 1 can be respectively inserted into the upper and lower pipe openings of the dustproof sleeve 5 to form a closed grinding space, which effectively prevents debris and dust from diffusing outward, reduces pollution to the working environment, reduces the harm of dust to the health of operators, and also reduces the damage to operators caused by the high-speed rotating grinding tool and flying debris during the grinding process to a certain extent, thereby improving the safety protection of the equipment.

[0018] The structure of the lower grinding table 1 includes a fixed block 10 locked and mounted on the mounting frame 3, a rotating shaft 11 connected by a central axis of the fixed block 10, a connecting plate 12 fixed on the top of the rotating shaft 11, and a grinding plate 13 mounted on the upper side of the connecting plate 12. The upper side of the fixed block 10 and the lower side of the connecting plate 12 are rotatably fitted and supported to enhance the structural strength, and are used to rotatably support the weight of the connecting plate 12 and the stone slab on the grinding plate 13 to prevent the single rotating shaft 11 support from being easily tilted. A grinding motor 31 is installed on the mounting frame 3, and The grinding motor 31 is connected to the rotating shaft 11 through the transmission belt 32. The grinding plates 13 of the lower grinding table 1 and the upper grinding table 2 rotate in opposite directions to grind the upper and lower sides of the stone plate in a closed grinding space, which can ensure the uniformity of the surface grinding of the circular stone plate, avoid the situation of excessive grinding in certain areas of the plate, and improve the appearance quality of the stone product. At the same time, compared with the single grinding method of the existing grinding tool, the synchronous grinding greatly improves the grinding efficiency; and after the circular stone plate is placed on the grinding plate 13 of the lower grinding table 1, the lower grinding table The grinding plates 13 of the lower grinding table 1 and the upper grinding table 2 can be rotated in opposite directions for grinding at different speed differences. Compared with unidirectional grinding, this method can remove the excess on the surface of the stone more quickly. For example, when processing garden stone piers, more stone materials need to be removed to achieve the ideal shape and surface quality. The reverse speed difference rotation grinding can complete the material removal task in a shorter time, thereby improving the overall efficiency of grinding. Moreover, since the grinding plates 13 of the lower grinding table 1 and the upper grinding table 2 rotate at a reverse speed difference, the forces generated by the rotation of the two can offset each other to a certain extent, which helps to reduce the vibration of the equipment during the grinding process. The reduction of equipment vibration can not only improve the grinding accuracy, but also reduce the damage to the equipment itself caused by vibration, extend the service life of the equipment, and also reduce the safety risks that may be brought to the operator due to the vibration of the equipment. In addition, the reverse speed difference rotation grinding makes the stone plate more stable during the grinding process. Since the upper and lower sides of the stone are close to the grinding plates, the possibility of stone splashing or accidental movement of the equipment due to instability is reduced.

[0019] The outer side of the fixed block 10 is sleeved with a dust plug disc 14 whose position can be adjusted up and down. Specifically, a plurality of mounting holes 15 are opened on the upper side of the fixed block 10, and the lower side of the dust plug disc 14 is correspondingly locked on the mounting holes 15 by screws. In this way, when grinding thicker stone slabs, the positions of the two dust plug discs 14 can be relatively adjusted closer, so that the height of the dust-proof sleeve 5 can be matched, and the air bag rings 142 of the two dust plug discs 14 can be prevented from not being able to plug the upper and lower pipe openings of the dust-proof sleeve 5; and the outer diameter of the dust plug disc 14 is larger than the outer diameter of the grinding plate 13, and the dust plug disc 14 is located directly below the grinding plate 13, that is, the dust plug disc 14 not only plays a blocking role but also can be used to collect dust when the grinding plate 13 grinds the stone slab; At the same time, an air cylinder hole 141 connected to the external air is opened at the bottom of the dust plug tray 14, and the air cylinder hole 141 of the lower grinding table 1 is connected to the air suction end of the external vacuum cleaner through an air pipe, while the air cylinder hole 141 of the upper grinding table 2 is connected to the air outlet end of the external vacuum cleaner through an air pipe, so that the upper dust plug tray 14 can have a blowing effect and increase the internal air flow speed, while the lower dust plug tray 14 is mainly used to collect and absorb dust, and circulate and filter the air in the closed grinding space, which greatly improves the dust removal effect. Among them, the upper and lower edges of the dust plug tray 14 are respectively fixed with air bag rings 142, and the air bag rings 142 are elastically tightly attached to the inner wall of the dustproof sleeve 5. The elastic effect of the air bag ring 142 can adapt to fit tightly to the inner side of different dustproof sleeves 5, so that a closed grinding space is formed in the middle part of the dustproof sleeve 5, and the hard contact between the dust plug tray 14 and the inner side of the dustproof sleeve 5 causes wear.

[0020] In the above technical solution, a V-shaped scraper 121 is installed on one side of the bottom of the connecting plate 12 through a telescopic adjustment rod. The V-shaped scraper 121 can be adapted to fit the inner bottom of the dust plug disc 14, and the middle turning point of the V-shaped scraper 121 corresponds to the upper side of the cylinder hole 141. When the equipment starts the grinding operation, the connecting plate 12 starts to rotate. Due to the connection between the V-shaped scraper 121 and the connecting plate 12, the V-shaped scraper 121 also rotates. During the rotation process, the edge of the V-shaped scraper 121 fits the inner bottom of the dust plug disc 14, and the dust deposited on the bottom of the disc is gradually scraped toward the middle. Because of its special V-shaped structure, the V-shaped scraper 121 can be easily scraped. The structure can effectively concentrate the dust at different positions to the middle part. As the V-shaped scraper 121 rotates, the dust is concentrated at its turning point. Since the turning point corresponds to the upper side of the cylinder hole 141, the dust is easily scraped into the cylinder hole 141 under the push of the V-shaped scraper 121. The cylinder hole 141 of the lower grinding table 1 is connected to the suction end of the external vacuum cleaner, so that the dust scraped into the cylinder hole 141 is more easily sucked away by the vacuum cleaner, thereby realizing effective dust cleaning, avoiding long-term accumulation and overflow of dust in the dust plug tray 14, ensuring the cleanliness of the grinding space, and improving the dust treatment efficiency.

[0021] In the above technical solution, a cleaning assembly 122 is provided in the dust plug tray 14 for use in combination with a V-shaped scraper 121. The cleaning assembly 122 is installed on the other side of the bottom of the connecting plate 12, so that the cleaning assembly 122 can rotate with the rotation of the connecting plate 12, thereby providing a power source for the cleaning work. The cleaning assembly 122 structure includes a vertical plug rod 1221, a movable sleeve 1222, a rotating gear 1223 and a cleaning brush 1224. The top of the vertical plug rod 1221 is screwed to one side of the bottom of the connecting plate 12, and the movable sleeve 1222 is movably sleeved up and down under the vertical plug rod 1221. The cleaning brush 1224 is installed on the lower side of the rotating gear 1223, and the bottom of the movable sleeve 1222 is locked and connected with the upper side of the rotating gear 1223, so that the cleaning brush 1224 can rotate with the rotation of the rotating gear 1223 to clean the dust plug tray 14, and a return spring 1225 is provided on the inner side of the movable sleeve 1222, and the upper side of the rotating gear 1223 is elastically connected to the bottom of the vertical plug rod 1221 through the return spring 1225. The return spring 1225 enables the cleaning brush 1224 to maintain a certain elastic contact during the working process to adapt to the surface condition of the dust plug tray 14; It is further configured that a gear ring 143 is fixedly provided on the middle part of the inner side of the dust plug tray 14, and the V-shaped scraper 121 and the gear ring 143 are staggered up and down, and the gear ring 143 is meshed with the rotating gear 1223 for transmission, so that the cleaning brush 1224 rotates along the outer side of the gear ring 143. At the same time, the rotating gear 1223 meshes with the gear ring 143 to allow the cleaning brush 1224 to rotate on its own, thereby improving the cleaning effect and efficiency.

[0022] In this embodiment, four correction components 51 for pushing the outer periphery of the stone slab are distributed in a circular array in the middle of the dustproof sleeve 5. The correction component 51 includes a mounting base plate 511, an ejection telescopic rod 512 and a movable frame 513. The mounting base plate 511 is fixedly arranged on the outer periphery of the dustproof sleeve 5, and the telescopic end of the ejection telescopic rod 512 faces one side of the dustproof sleeve 5 and is locked and mounted on the mounting base plate 511. The movable frame 513 is fixedly installed on the telescopic end of the ejection telescopic rod 512, and the movable frame 513 can perform linear reciprocating displacement from the outside to the inside of the dustproof sleeve 5. The front end shaft of the movable frame 513 is rotatably installed with a rubber roller 514, which is used to rotate and tighten the outer side surface of the stone slab. Force can be applied from multiple points to minimize the position deviation of the stone slab. This multi-directional correction method can more accurately adjust the center position of the stone slab, and at this time The rubber roller 514 is in a free-rotating state and can rotate along with the outer side of the stone slab when it fits against the stone slab, thereby reducing the friction between them and causing no damage to the surface of the stone slab while performing the top correction, thereby ensuring the accuracy of the correction. In addition, a driven gear is fixed to the top shaft end of the rubber roller 514, and a rotating motor is installed on the inner side of the movable frame 513. A driving gear 515 meshing with the driven gear is installed on the shaft end of the rotating motor. The rotating motor can control the rotation state of the rubber roller 514 and then limit the rotation state. When the upper and lower grinding plates 13 grind the stone slab in opposite directions, the rotating motor can accurately control the rotation or non-rotation of the rubber roller 514, thereby applying a certain lateral force to the side of the stone slab. These lateral forces can assist the grinding plates 13 to accurately grind the upper and lower surfaces of the stone slab, thereby improving the grinding effect.

[0023] The polishing device for stone processing applied to the above technical solution is also included, the polishing device includes a frame 4 for installing two mounting frames 3, a dustproof sleeve 5 is locked and installed in the middle of the frame 4, and driving mechanisms 6 for driving the two mounting frames 3 to move up and down independently are respectively provided on both sides of the frame 4, the driving mechanism 6 includes an outer frame 61 locked with the frame 4, and a rotating rod 62 vertically rotated and installed in the middle of the outer frame 61, the rotating rods 62 of the two driving mechanisms 6 are slid through the two sides of the two mounting frames 3, so that the two mounting frames 3 can be lifted up and down by the rotating rods 62, a lifting motor 64 for driving the rotating rods 62 to rotate is installed on the top of the outer frame 61, and the two rotating rods 62 are staggered up and down with transmission threads 621, the transmission thread 621 of one rotating rod 62 is threadedly connected to the mounting frame 3 of the lower grinding table 1, and the transmission thread 621 of the other rotating rod 62 is threadedly connected to the mounting frame 3 of the upper grinding table 2, so that the two rotating rods 62 can respectively thread-drive the lower grinding table 1 and the upper grinding table 2 to stably lift and lower.

[0024] Among them, sliding guide rods 63 are vertically installed on both sides of the outer frame 61, and both sides of the two mounting frames 3 are connected to the sliding guide rods 63 for upward and downward sliding through sliders, cooperating with the function of the rotating rod 62 to achieve dual guiding function and improve the stability of the lifting structure.

[0025] In addition, two first conveyor belts 7 are relatively installed on the front and rear sides of the frame 4 for conveying stone slabs to the grinding station. The two first conveyor belts 7 cooperate to convey more efficiently, and even if one of the first conveyor belts 7 is damaged, the other first conveyor belt 7 can continue to be used for conveying. The lower grinding table 1, the upper grinding table 2 and the dust-proof sleeve 5 are all located between the two first conveyor belts 7, wherein the upper horizontal line of the dust-proof sleeve 5 is not higher than the upper horizontal conveying position of the first conveyor belt 7, so that the slabs conveyed by the first conveyor belt 7 can be received by the raised lower grinding table 1.

[0026] In order to facilitate the rapid discharge of the polished slabs, the second conveyor belt 8 and the pushing telescopic rod 9 are respectively installed on the frame 4 below the two first conveyor belts 7. The telescopic end of the pushing telescopic rod 9 is arranged toward the second conveyor belt 8, and the telescopic end of the pushing telescopic rod 9 is fixedly provided with an arc-shaped push plate 91. The width of the arc-shaped push plate 91 is greater than the width of the stone slab, and there is no sharp corner to avoid contact wear. The lower horizontal line of the arc-shaped push plate 91 is higher than the upper horizontal conveying position of the second conveyor belt 8, and the upper horizontal line of the arc-shaped push plate 91 is lower than the lower horizontal line of the dustproof sleeve 5. After the arc-shaped push plate 91 is pushed out by the pushing telescopic rod 9, the polished stone slab on the lower polishing table 1 can be pushed to the second conveyor belt 8 and sent out by the second conveyor belt 8.

[0027] To be more specific about the working principle, when in use, since the driving mechanisms 6 on both sides of the frame 4 are used to drive the mounting frames 3 of the lower grinding table 1 and the upper grinding table 2 to move up and down independently, it is necessary to first drive the rotating rod 62 through the lifting motor 64 of one of the driving mechanisms 6, and let the transmission thread 621 on the lower side of the rotating rod 62 drive the mounting frame 3 of the lower grinding table 1, so that the lower grinding table 1 can be stably lifted up under the dual guidance of the sliding guide rod 63 and the other rotating rod 62, so that the grinding plate 13 on the upper side of the lower grinding table 1 passes through the dustproof sleeve 5 and is flush with the two first conveyor belts 7. The two first conveyor belts 7 can be switched for use, thereby improving the efficiency of plate feeding. After the round stone slabs are respectively transported to the grinding plate 13 on the upper side of the lower grinding table 1 by the two first conveyor belts 7, the lower grinding table 1 is moved to the lower side of the lower grinding table 1 by the other driving mechanism The action of the mechanism 6 causes the circular stone slab to move downward, and after the circular stone slab is transported to the appropriate position in the middle of the dust-proof sleeve 5, the correction assembly 51 arranged in an annular array in the middle of the dust-proof sleeve 5 starts to work, and the ejection telescopic rod 512 in the correction assembly 51 extends, driving the movable frame 513 to move linearly from the outside to the inside of the dust-proof sleeve 5, so that the rubber roller 514 installed on the front end axis of the movable frame 513 rotates to press against the outer side of the circular stone slab and correct it at the center position of the grinding plate 13. At this time, the grinding plate 13 of the upper grinding table 2 is driven by another driving mechanism 6 to move downward and close to the upper side of the stone slab. That is to say, at this time, the air bag ring 142 of the outer ring of the dust plug disc 14 of the upper grinding table 2 and the lower grinding table 1 is elastically inserted into the dust-proof sleeve 5, further ensuring the sealing property, thereby forming a closed grinding space in the dust-proof sleeve 5; Then prepare to perform the grinding operation. Since the structures of the lower grinding table 1 and the upper grinding table 2 are similar, the grinding motor 31 is connected to the rotating shaft 11 through the transmission belt 32, so that the grinding plates 13 of the lower grinding table 1 and the upper grinding table 2 rotate in opposite directions to grind the upper and lower sides of the circular stone slab in a closed grinding space. This reverse rotation grinding can grind the stone more comprehensively and evenly, and improve the uniformity and efficiency of grinding. During this period, when the rubber roller 514 of the correction component 51 is in a free rotation state, it can follow the rotation of the stone slab to avoid the deviation of the stone due to the single direction of force. When the rubber roller 514 is in a restricted rotation state, it provides a certain tightening force to tighten the stone slab to restrict its rotation, providing a certain force , so that the upper and lower grinding plates 13 rotate and grind. Of course, the rotating motor can also rotate the rubber roller 514 through the driving gear 515 and the driven gear at one end of the transmission rubber roller 514, thereby assisting the rotation of the circular stone plate. It can be controlled according to the use requirements. The force exerted on the stone plate in each state is different, which can improve its grinding flexibility and grinding effect. During grinding, since the diameter of the dust plug disc 14 is larger than the diameter of the grinding plate 13, the dust plug disc 14 of the lower grinding table 1 can be used to receive dust, and an air cylinder hole 141 is provided at the bottom of the dust plug disc 14. The air cylinder hole 141 of the lower grinding table 1 is connected to the suction end of the external vacuum cleaner through an air pipe, and the air cylinder hole 141 of the upper grinding table 2 is connected to the suction end of the external vacuum cleaner through an air pipe. The air outlet of the external vacuum cleaner is connected. After the vacuum cleaner is working, the dust can be sucked in and filtered through the air cylinder hole 141 of the lower grinding table 1, and then the filtered gas is blown out through the air cylinder hole 141 of the upper grinding table 2, so as to improve the internal air flow effect and realize the air circulation filtration in the closed grinding space. In the grinding process, the V-shaped scraper 121 installed on one side of the bottom of the connecting plate 12 through the telescopic adjustment rod rotates with the connecting plate 12. Since the V-shaped scraper 121 can be adapted to fit the bottom of the inner side of the dust plug tray 14, and the middle turning point corresponds to the upper side of the air cylinder hole 141, the dust and debris deposited on the bottom of the dust plug tray 14 can be scraped into the air cylinder hole 141; at the same time, the cleaning component 122 in the dust plug tray 14 also cooperates The top of the vertical plug rod 1221 in the cleaning component 122 is screwed with one side of the bottom of the connecting plate 12, so that the cleaning brush 1224 can follow the connecting plate 12 to rotate and clean the inner side of the dust plug disc 14, so as to achieve the effect of cleaning the inner bottom of the dust plug disc 14 again after being scraped by the V-shaped scraper 121, and the cleaning brush 1224 can mesh with the toothed ring 143 in the middle of the inner side of the dust plug disc 14 when rotating, so that the cleaning brush 1224 rotates along the outer side of the toothed ring 143 and rotates at the same time, thereby improving its cleaning effect, and also facilitating the dust to be lifted in the closed grinding space during cleaning, and combined with the blowing and suction effect of the vacuum cleaner, the dust can be more easily sucked into the cylinder hole 141 of the lower grinding table 1, thereby once again improving the dust treatment effect and efficiency; When the stone is polished, the upper polishing table 2 moves upward, the ejection telescopic rod 512 of the ejection correction assembly 51 contracts outward to reset, and the driving mechanism 6 drives the mounting frame 3 of the lower polishing table 1 to continue to move downward, so that the polished stone slab on its polishing plate 13 is located on one side of the second conveyor belt 8, and works through the pushing telescopic rod 9 located under the two first conveyor belts 7 on the other side, the telescopic end of which is arranged toward the second conveyor belt 8, and the telescopic end is fixedly provided with an arc-shaped push plate 91. Since the lower horizontal line of the arc-shaped push plate 91 is higher than the upper horizontal conveying position of the second conveyor belt 8, and the upper horizontal line of the arc-shaped push plate 91 is lower than the lower horizontal line of the dust-proof sleeve 5, the pushing telescopic rod 9 is extended and drives the arc-shaped push plate 91 to quickly push the stone onto the second conveyor belt 8, and the polished stone is transported out through the second conveyor belt 8, thus completing the polishing process of the entire stone processing.

[0028] The above embodiments show and describe the basic principles and main features of the invention and the advantages of the invention. Those skilled in the art should understand that the invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the invention. Without departing from the spirit and scope of the invention, the invention may have various changes and improvements, which shall fall within the scope of the invention to be protected. The scope of protection of the invention shall be defined by the attached claims and their equivalents.

Claims

1. A grinding tool, characterized in that: The invention comprises a lower grinding table (1) and an upper grinding table (2) of identical structure and arranged opposite to each other, two mounting frames (3) for mounting the lower grinding table (1) and the upper grinding table (2) respectively, and a dustproof sleeve (5) arranged between the lower grinding table (1) and the upper grinding table (2); the upper grinding table (2) and the lower grinding table (1) can be respectively inserted into the upper and lower pipe openings of the dustproof sleeve (5) to form a closed grinding space; The structure of the lower grinding table (1) comprises a fixed block (10) fixedly mounted on a mounting frame (3), a rotating shaft (11) connected by a central shaft of the fixed block (10), a connecting plate (12) fixed on the top of the rotating shaft (11), and a grinding plate (13) mounted on the upper side of the connecting plate (12); the upper side of the fixed block (10) and the lower side of the connecting plate (12) are rotatably fitted and supported; a grinding motor (31) is mounted on the mounting frame (3), and the grinding motor (31) is connected to the rotating shaft (11) by a transmission belt (32); the grinding plates (13) of the lower grinding table (1) and the upper grinding table (2) rotate in opposite directions to grind the upper and lower sides of the stone slab in a closed grinding space; The fixed block (10) is sleeved with a dust plug disc (14) whose position can be adjusted up and down. The outer diameter of the dust plug disc (14) is larger than the outer diameter of the grinding plate (13). The dust plug disc (14) is located directly below the grinding plate (13) and is used to collect dust. The bottom of the dust plug tray (14) is provided with an air cylinder hole (141) for communicating with the outside air; the air cylinder hole (141) of the lower grinding table (1) is connected to the air suction end of an external vacuum cleaner via an air pipe, while the air cylinder hole (141) of the upper grinding table (2) is connected to the air outlet end of an external vacuum cleaner via an air pipe, so that the air in the closed grinding space is circulated and filtered; The dust plug disc (14) is respectively fixedly provided with air bag rings (142) on the upper and lower edges thereof, and is elastically and tightly attached to the inner wall of the dustproof sleeve (5) via the air bag rings (142).

2. A grinding tool according to claim 1, characterized in that: A V-shaped scraper (121) is mounted on one side of the bottom of the connecting plate (12) via a telescopic adjustment rod. The V-shaped scraper (121) can be fitted and attached to the inner bottom of the dust plug plate (14), and a middle turning point of the V-shaped scraper (121) corresponds to the upper side of the air cylinder hole (141). The V-shaped scraper (121) scrapes dust from the bottom of the dust plug plate (14) into the air cylinder hole (141) as the connecting plate (12) rotates.

3. A grinding tool according to claim 2, characterized in that: The dust plug tray (14) is provided with a cleaning assembly (122) therein. The cleaning assembly (122) is mounted on the other side of the bottom of the connecting plate (12). The cleaning assembly (122) structure comprises a vertical plug rod (1221), a movable sleeve (1222), a rotating gear (1223) and a cleaning brush (1224). The top end of the vertical plug rod (1221) is screw-locked to one side of the bottom of the connecting plate (12). The movable sleeve (1222) The upper and lower movable sleeves are arranged on the lower side of the vertical insertion rod (1221), the cleaning brush (1224) is installed on the lower side of the rotating gear (1223), the bottom of the movable sleeve (1222) is locked and connected with the upper side of the rotating gear (1223), a return spring (1225) is arranged on the inner side of the movable sleeve (1222), and the upper side of the rotating gear (1223) is elastically connected with the bottom of the vertical insertion rod (1221) via the return spring (1225).

4. A grinding tool according to claim 3, characterized in that: A plurality of mounting holes (15) are provided on the upper side of the fixing block (10); the lower side of the dust plug disc (14) is correspondingly locked on the mounting holes (15) by means of screws; a toothed ring (143) is fixedly provided at the middle of the inner side of the dust plug disc (14); the V-shaped scraper (121) and the toothed ring (143) are staggered in the upper and lower parts; and the toothed ring (143) is meshed with the rotating gear (1223) for transmission.

5. A grinding tool according to claim 1, characterized in that: A plurality of correction components (51) for pushing the outer periphery of the stone plate are arranged in an annular arrangement in the middle of the dustproof sleeve (5). The correction components (51) include a mounting base plate (511), an ejection telescopic rod (512) and a movable frame (513). The mounting base plate (511) is fixedly mounted on the outer periphery of the dustproof sleeve (5). The telescopic end of the ejection telescopic rod (512) faces one side of the dustproof sleeve (5) and is locked and mounted on the mounting base plate (511). The movable frame (513) is fixedly mounted on the telescopic end of the ejection telescopic rod (512). The movable frame (513) can perform linear reciprocating displacement from the outside of the dustproof sleeve (5) to the inside. A rubber roller (514) is rotatably mounted on the front end shaft of the movable frame (513) for rotating and tightening the outer side surface of the stone plate.

6. A grinding tool according to claim 5, characterized in that: A driven gear is fixedly arranged at the top shaft end of the rubber roller (514), and a rotating motor is installed inside the movable frame (513). A driving gear (515) meshing with the driven gear is installed at the shaft end of the rotating motor.

7. A polishing device for stone processing, characterized in that: The abrasive tool as claimed in claim 1 is characterized in that it also includes a frame (4) for mounting two mounting frames (3), the dustproof sleeve (5) is locked and mounted in the middle of the frame (4), and driving mechanisms (6) for driving the two mounting frames (3) to move up and down independently are respectively provided on both sides of the frame (4), the driving mechanism (6) includes an outer frame (61) locked with the frame (4), and a rotating rod (62) mounted vertically and rotatably in the middle of the outer frame (61), and the two driving mechanisms (6) The rotating rods (62) are slidably penetrated by both sides of the two mounting frames (3), and the two rotating rods (62) are staggered up and down and provided with transmission threads (621), wherein the transmission thread (621) of one rotating rod (62) is threadedly connected to the mounting frame (3) of the lower grinding table (1), and the transmission thread (621) of the other rotating rod (62) is threadedly connected to the mounting frame (3) of the upper grinding table (2), and a lifting motor (64) for driving the rotating rods (62) to rotate is installed on the top of the outer frame (61).

8. The polishing device for stone processing according to claim 7, characterized in that: Sliding guide rods (63) are vertically mounted on both sides of the outer frame (61), and both sides of the two mounting frames (3) are connected to the sliding guide rods (63) by sliding blocks so as to slide up and down.

9. The polishing device for stone processing according to claim 7, characterized in that: Two first conveyor belts (7) are installed opposite to each other on the front and rear sides of the frame (4); the lower grinding table (1), the upper grinding table (2) and the dust-proof sleeve (5) are all located between the two first conveyor belts (7); and the upper horizontal line of the dust-proof sleeve (5) is not higher than the upper horizontal conveying position of the first conveyor belt (7).

10. The polishing device for stone processing according to claim 9, characterized in that: A second conveyor belt (8) and a telescopic push rod (9) are respectively mounted on the frame (4) below the two first conveyor belts (7), the telescopic end of the telescopic push rod (9) is arranged toward the second conveyor belt (8), and an arc-shaped push plate (91) is fixed to the telescopic end of the telescopic push rod (9), the lower horizontal line of the arc-shaped push plate (91) is higher than the upper horizontal conveying position of the second conveyor belt (8), and the upper horizontal line of the arc-shaped push plate (91) is lower than the lower horizontal line of the dust-proof sleeve (5).

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