Automatic stone surface polishing device and machining method thereof

Abstract

The invention relates to an automatic stone surface polishing device and a machining method thereof.The automatic stone surface polishing device comprises a rack, conveying rollers, a conveying belt, a coarse grinding mechanism and a fine grinding mechanism, the multiple conveying rollers are installed in the rack, the conveying belt is installed on the multiple conveying rollers, the coarse grinding mechanism and the fine grinding mechanism are installed on the rack, and the conveying belt is installed on the coarse grinding mechanism; the rough grinding mechanism comprises symmetrically-arranged vertical frames, a fixed roller, an elastic roller and a lifting roller are installed in the two vertical frames, the fixed roller, the elastic roller and the lifting roller are connected through a grinding belt, and the fine grinding mechanism comprises a fixed frame. The stone is continuously conveyed through the conveying belt, two-stage polishing is automatically completed in combination with the coarse grinding mechanism and the fine grinding mechanism, manual intervention is reduced, the machining efficiency is improved, the coarse grinding mechanism adopts an adjustable grinding belt, an elastic roller and a lifting roller to be matched with a pneumatic cylinder for dynamic adjustment, the device adapts to stone of different thicknesses, and it is ensured that the grinding pressure is uniform; and the fine grinding mechanism realizes fine polishing through precise control of a translation seat and a lifting cover.

Description

Technical Field

[0001] The present invention relates to the technical field of stone processing, in particular to an automatic device for polishing a stone surface and a processing method thereof. Background Art

[0002] In the stone processing industry, surface polishing is a key process that directly affects the beauty, flatness and performance of the stone.

[0003] Traditional stone polishing mainly relies on manual operation or semi-automated equipment, which has the following technical problems: low efficiency, manual polishing is labor-intensive, slow processing speed, and it is difficult to meet the needs of mass production; unstable polishing quality, manual operation is easily affected by the workers' technical proficiency, resulting in uneven polishing, and even scratches or over-polishing; poor adaptability, traditional equipment is difficult to adapt to stones of different thicknesses and hardness, the adjustment process is cumbersome, affecting production efficiency; serious dust pollution, a large amount of dust is generated during the polishing process, and traditional equipment lacks efficient dust removal measures, which endangers workers' health and pollutes the environment. Summary of the Invention

[0004] The problem to be solved by the present invention is to provide an automated device for polishing the surface of stone and a processing method thereof, which solves the following technical problems that traditional stone polishing mainly relies on manual operation or semi-automatic equipment, and has the following technical problems: low efficiency, high labor intensity of manual polishing, slow processing speed, and difficulty in meeting the needs of mass production; unstable polishing quality, manual operation is easily affected by the workers' technical proficiency, resulting in uneven polishing, and even scratches or over-grinding; poor adaptability, traditional equipment is difficult to adapt to stones of different thicknesses and hardnesses, the adjustment process is cumbersome, and production efficiency is affected; serious dust pollution, a large amount of dust is generated during the polishing process, and traditional equipment lacks efficient dust removal measures, which endangers workers' health and pollutes the environment.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A stone surface polishing automation device includes a frame, a conveyor roller, a conveyor belt, a coarse grinding mechanism and a fine grinding mechanism, wherein a plurality of conveyor rollers are installed in the frame, and a conveyor belt is installed on the plurality of conveyor rollers, the coarse grinding mechanism and the fine grinding mechanism are installed on the frame, the coarse grinding mechanism includes a symmetrically arranged vertical frame, two of the vertical frames are installed with a fixed roller, an elastic roller and a lifting roller, the fixed roller, the elastic roller and the lifting roller are connected by a grinding belt, the fine grinding mechanism includes a fixed frame, a translation seat is slidably installed on the bottom side of the fixed frame, a lifting cover is lifted and installed on the bottom side of the translation seat, a ring cover is elastically installed in the lifting cover, and a grinding disc is rotatably installed in the lifting cover and the ring cover.

[0007] Preferably, a horizontal groove is horizontally opened on the vertical frame, a first pneumatic cylinder is horizontally installed in the horizontal groove, a first roller seat is installed at the telescopic end of the first pneumatic cylinder, and the first roller seat is connected to the end of the elastic roller.

[0008] Preferably, a vertical slot is vertically opened on the stand, a second pneumatic cylinder is vertically installed in the vertical slot, a second roller seat is installed at the telescopic end of the second pneumatic cylinder, and the second roller seat is connected to the end of the lifting roller.

[0009] Preferably, a first motor is installed in the frame, and synchronous wheels are installed at the output end of the first motor and the end of the fixed roller, and the two synchronous wheels are connected by a synchronous belt transmission.

[0010] Preferably, the coarse grinding mechanism further comprises a mounting frame mounted on the stand, and a dust hood is mounted on the mounting frame.

[0011] Preferably, a sliding groove is provided on the bottom side of the fixing frame, a second motor is installed on the end of the fixing frame, a threaded rod is installed on the output end of the second motor located in the sliding groove, and the threaded rod is threadedly connected to the translation seat.

[0012] Preferably, a third pneumatic cylinder is symmetrically installed on the translation seat, the telescopic end of the third pneumatic cylinder is connected to the lifting cover, a plurality of springs are installed in the lifting cover, the springs are connected to the ring cover, and a ball is installed at the bottom of the ring cover.

[0013] Preferably, a third motor is installed on the translation seat, a polygonal rotating shaft is installed on the output end of the third motor, a shaft sleeve is installed on the grinding disc, and the shaft sleeve is connected to the lifting cover bearing, and the shaft sleeve is slidably connected to the polygonal rotating shaft.

[0014] Preferably, the dust hood and the top of the lifting hood are connected to the vacuum cleaner through a hose.

[0015] A processing method of a stone surface polishing automation device, the specific operating steps of the processing method are as follows:

[0016] Step 1: The stone is transported on the conveyor roller and conveyor belt. When the stone passes under the coarse grinding mechanism and the fine grinding mechanism, the second pneumatic cylinder is extended and retracted to drive the second roller seat to move, and the position of the lifting roller is adjusted until the grinding belt contacts the top side of the stone. At the same time, the first pneumatic cylinder is extended and retracted to drive the tension roller to move, and the tightness of the grinding belt is adjusted. The first motor works, and the synchronous wheel and the synchronous belt drive, thereby driving the fixed roller and the grinding belt to rotate, and the top side of the stone is coarsely ground. The dust generated by grinding enters the vacuum cleaner through the dust hood;

[0017] Step 2: The lifting cover is driven downward by the third pneumatic cylinder. At this time, the sleeve moves downward along the polygonal shaft. At this time, the ring cover first contacts the top side of the stone. As the grinding disc moves down to contact the top side of the stone, the ring cover compresses the spring in the lifting cover to ensure that the ball on the bottom side of the ring cover is always in contact with the top side of the stone. The threaded rod is driven to rotate by the second motor, which in turn drives the threaded translation seat to move and adjust the position of the grinding disc. The polygonal shaft, sleeve and grinding disc are rotated by the third motor to complete the fine grinding and polishing of the stone. The dust generated by the fine grinding and polishing enters the vacuum cleaner through the lifting cover and the ring cover.

[0018] The beneficial effects of the present invention are: the stone is continuously conveyed by the conveyor belt, and the coarse grinding mechanism and the fine grinding mechanism are combined to automatically complete the two-stage polishing, thereby reducing manual intervention and improving processing efficiency;

[0019] The coarse grinding mechanism adopts an adjustable grinding belt, and the tension roller and lifting roller are dynamically adjusted with the pneumatic cylinder to adapt to different thicknesses of stone and ensure uniform grinding pressure. The fine grinding mechanism realizes fine polishing through the precise control of the translation seat and lifting cover.

[0020] The fixed roller drives the grinding belt to rotate at high speed, the lifting roller accurately controls the contact pressure to avoid excessive wear, the dust collection hood collects dust immediately to keep the processing environment clean, the elastic ring cover design cooperates with the ball bearing to make the grinding disc adapt to the undulations of the stone surface, and the polygonal shaft and sleeve transmission ensure that the grinding disc rotates stably and the polishing is more uniform and delicate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the first overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the second overall structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the third overall structure of the present invention;

[0024] Figure 4 It is an overall cross-sectional view of the present invention;

[0025] Figure 5 is a cross-sectional view of the fixing frame of the present invention;

[0026] Figure 6 It is a cross-sectional view of the fine grinding mechanism of the present invention.

[0027] Legend:

[0028] 1. Frame; 2. Conveyor roller; 3. Conveyor belt; 4. Coarse grinding mechanism; 5. Fine grinding mechanism; 6. Vertical frame; 7. Horizontal trough; 8. First pneumatic cylinder; 9. First roller seat; 10. Vertical trough; 11. Second pneumatic cylinder; 12. Second roller seat; 13. Fixed roller; 14. Elastic roller; 15. Lifting roller; 16. Grinding belt; 17. First motor; 18. Synchronous wheel; 19. Synchronous belt; 20. Mounting frame; 21. Dust hood; 22. Fixed frame; 23. Slide; 24. Second motor; 25. Threaded rod; 26. Translation seat; 27. Third pneumatic cylinder; 28. Lifting hood; 29. ​​Spring; 30. Ring cover; 31. Third motor; 32. Multilateral shaft; 33. Bushing; 34. Grinding disc. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0030] Specific examples are given below.

[0031] See also Figures 1 to 6, an automated device for polishing a stone surface, comprising a frame 1, a conveying roller 2, a conveyor belt 3, a coarse grinding mechanism 4 and a fine grinding mechanism 5, a plurality of conveying rollers 2 are installed in the frame 1, and a plurality of conveying rollers 2 are installed with conveyor belts 3, a coarse grinding mechanism 4 and a fine grinding mechanism 5 are installed on the frame 1, the coarse grinding mechanism 4 comprises a symmetrically arranged vertical frame 6, a fixed roller 13, an elastic roller 14 and a lifting roller 15 are installed in the two vertical frames 6, the fixed roller 13, the elastic roller 14 and the lifting roller 15 are connected by a grinding belt 16, a horizontal groove 7 is horizontally opened on the vertical frame 6, a first pneumatic cylinder 8 is horizontally installed in the horizontal groove 7, a first roller seat 9 is installed at the telescopic end of the first pneumatic cylinder 8, the first roller seat 9 is connected to the end of the elastic roller 14, the first pneumatic cylinder 8 is telescopically driven to drive the elastic roller 14 to move, and when the lifting roller 15 is raised and lowered, the tightness of the grinding belt 16 is adjusted, the vertical frame 6 A vertical slot 10 is vertically opened on the upper part, and a second pneumatic cylinder 11 is vertically installed in the vertical slot 10. A second roller seat 12 is installed at the telescopic end of the second pneumatic cylinder 11, and the second roller seat 12 is connected to the end of the lifting roller 15. The second roller seat 12 is driven to move by the telescopic second pneumatic cylinder 11 to adjust the position and height of the lifting roller 15. A first motor 17 is installed in the frame 1, and a synchronous wheel 18 is installed at the output end of the first motor 17 and the end of the fixed roller 13, and the two synchronous wheels 18 are connected by a synchronous belt 19. When the first motor 17 works, the synchronous wheel 18 and the synchronous belt 19 are driven, thereby driving the fixed roller 13 and the grinding belt 16 to rotate, and the top side of the stone is roughly ground. The rough grinding mechanism 4 also includes a mounting frame 20 mounted on the vertical frame 6, and a dust hood 21 is installed on the mounting frame 20 to absorb and transfer the dust generated during the grinding process;

[0032] The fine grinding mechanism 5 includes a fixed frame 22, a translation seat 26 is slidably mounted on the bottom side of the fixed frame 22, a lifting cover 28 is lifted and lowered on the bottom side of the translation seat 26, an annular cover 30 is elastically mounted in the lifting cover 28, and a grinding disc 34 is rotatably mounted in the lifting cover 28 and the annular cover 30, a chute 23 is opened on the bottom side of the fixed frame 22, a second motor 24 is mounted on the end of the fixed frame 22, an output end of the second motor 24 is located in the chute 23 and a threaded rod 25 is mounted, and the threaded rod 25 is threadedly connected to the translation seat 26;

[0033] A third pneumatic cylinder 27 is symmetrically installed on the translation seat 26. The telescopic end of the third pneumatic cylinder 27 is connected to the lifting cover 28. Several springs 29 are installed in the lifting cover 28. The springs 29 are connected to the ring cover 30. A ball is installed at the bottom of the ring cover 30. The lifting cover 28 is driven to rise and fall by the third pneumatic cylinder 27. The shaft sleeve 33 moves along the polygonal rotating shaft 32. The ring cover 30 compresses the spring 29 in the lifting cover 28 to ensure that the ball on the bottom side of the ring cover 30 is always in contact with the top side of the stone. During grinding, the lifting cover 28 and the ring cover 30 are guaranteed to cover the stone.

[0034] A third motor 31 is installed on the translation seat 26, and a polygonal rotating shaft 32 is installed at the output end of the third motor 31. A shaft sleeve 33 is installed on the grinding disc 34, and the shaft sleeve 33 is connected to the lifting cover 28 bearing. The shaft sleeve 33 is slidingly connected to the polygonal rotating shaft 32. The operation of the third motor 31 realizes the rotation of the polygonal rotating shaft 32, the shaft sleeve 33 and the grinding disc 34 to complete the fine grinding and polishing of the stone.

[0035] The tops of the dust hood 21 and the lifting hood 28 are connected to the vacuum cleaner through hoses.

[0036] Working principle: The stone is transported on the conveyor roller 2 and the conveyor belt 3. When the stone passes under the coarse grinding mechanism 4 and the fine grinding mechanism 5, the second pneumatic cylinder 11 is extended and retracted to drive the second roller seat 12 to move, and the position of the lifting roller 15 is adjusted until the grinding belt 16 contacts the top side of the stone. At the same time, the first pneumatic cylinder 8 is extended and retracted to drive the tension roller 14 to move, and the tightness of the grinding belt 16 is adjusted. The first motor 17 works, and the synchronous wheel 18 and the synchronous belt 19 are driven, thereby driving the fixed roller 13 and the grinding belt 16 to rotate, and the top side of the stone is coarsely ground. The dust generated by grinding enters the dust collector through the dust hood 21, and the lifting hood 28 is driven by the third pneumatic cylinder 27. The shaft sleeve 33 moves downward along the polygonal shaft 32. At this time, the ring cover 30 first contacts the top side of the stone. As the grinding disc 34 moves downward to contact the top side of the stone, the ring cover 30 compresses the spring 29 in the lifting cover 28 to ensure that the ball on the bottom side of the ring cover 30 is always in contact with the top side of the stone. The threaded rod 25 is driven to rotate by the second motor 24, and then the threaded translation seat 26 is driven to move, and the position of the grinding disc 34 is adjusted. The polygonal shaft 32, the shaft sleeve 33 and the grinding disc 34 are rotated by the third motor 31 to complete the fine grinding and polishing of the stone. The dust generated by the fine grinding and polishing enters the vacuum cleaner through the lifting cover 28 and the ring cover 30.

[0037] The stone is continuously transported by the conveyor belt 3, and the coarse grinding mechanism 4 and the fine grinding mechanism 5 are combined to automatically complete the two-stage polishing, reducing manual intervention and improving processing efficiency;

[0038] The coarse grinding mechanism 4 adopts an adjustable grinding belt 16, and the tension roller 14 and the lifting roller 15 are dynamically adjusted with the pneumatic cylinder to adapt to different thicknesses of stone and ensure uniform grinding pressure. The fine grinding mechanism 5 realizes fine polishing through the precise control of the translation seat 26 and the lifting cover 28;

[0039] The fixed roller 13 drives the grinding belt 16 to rotate at high speed, the lifting roller 15 accurately controls the contact pressure to avoid excessive wear, the dust collection hood 21 collects dust in real time to keep the processing environment clean, the elastic ring cover 30 is designed with a ball bearing to make the grinding disc 34 adapt to the undulations of the stone surface, and the transmission of the polygonal shaft 32 and the sleeve 33 ensures that the grinding disc 34 rotates stably, and the polishing is more uniform and delicate.

[0040] The above are only preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An automated device for polishing a stone surface, characterized in that: The invention comprises a frame (1), a conveying roller (2), a conveying belt (3), a coarse grinding mechanism (4) and a fine grinding mechanism (5); a plurality of conveying rollers (2) are installed in the frame (1), and a conveying belt (3) is installed on the plurality of conveying rollers (2); a coarse grinding mechanism (4) and a fine grinding mechanism (5) are installed on the frame (1); the coarse grinding mechanism (4) comprises symmetrically arranged vertical frames (6); fixed rollers (13), elastic rollers (14) and lifting rollers are installed in two of the vertical frames (6); (15), the fixed roller (13), the elastic roller (14) and the lifting roller (15) are connected by a grinding belt (16), the fine grinding mechanism (5) includes a fixed frame (22), a translation seat (26) is slidably installed on the bottom side of the fixed frame (22), a lifting cover (28) is lifted and lowered on the bottom side of the translation seat (26), a ring cover (30) is elastically installed in the lifting cover (28), and a grinding disc (34) is rotatably installed in the lifting cover (28) and the ring cover (30).

2. The automatic stone surface polishing device according to claim 1, characterized in that: A horizontal groove (7) is horizontally opened on the vertical frame (6), a first pneumatic cylinder (8) is horizontally installed in the horizontal groove (7), a first roller seat (9) is installed at the telescopic end of the first pneumatic cylinder (8), and the first roller seat (9) is connected to the end of the elastic roller (14).

3. The automatic stone surface polishing device according to claim 2, characterized in that: A vertical slot (10) is vertically provided on the stand (6), a second pneumatic cylinder (11) is vertically installed in the vertical slot (10), a second roller seat (12) is installed at the telescopic end of the second pneumatic cylinder (11), and the second roller seat (12) is connected to the end of the lifting roller (15).

4. The automatic stone surface polishing device according to claim 3, characterized in that: A first motor (17) is installed in the frame (1), and a synchronous wheel (18) is installed at the output end of the first motor (17) and the end of the fixed roller (13), and the two synchronous wheels (18) are connected by a synchronous belt (19).

5. The automatic stone surface polishing device according to claim 4, characterized in that: The coarse grinding mechanism (4) further comprises a mounting frame (20) mounted on the stand (6), and a dust collecting hood (21) is mounted on the mounting frame (20).

6. The automatic stone surface polishing device according to claim 5, characterized in that: A sliding groove (23) is provided on the bottom side of the fixing frame (22), a second motor (24) is installed at the end of the fixing frame (22), an output end of the second motor (24) is located in the sliding groove (23) and a threaded rod (25) is installed therein, and the threaded rod (25) is threadedly connected to the translation seat (26).

7. The automatic device for polishing a stone surface according to claim 6, characterized in that: A third pneumatic cylinder (27) is symmetrically mounted on the translation seat (26). The telescopic end of the third pneumatic cylinder (27) is connected to a lifting cover (28). A plurality of springs (29) are mounted in the lifting cover (28). The springs (29) are connected to a ring cover (30). A ball bearing is mounted on the bottom of the ring cover (30).

8. The automatic stone surface polishing device according to claim 7, characterized in that: A third motor (31) is mounted on the translation seat (26), a polygonal rotating shaft (32) is mounted on the output end of the third motor (31), a shaft sleeve (33) is mounted on the grinding disc (34), and the shaft sleeve (33) is connected to the lifting cover (28) bearing, and the shaft sleeve (33) is slidably connected to the polygonal rotating shaft (32).

9. The automatic stone surface polishing device according to claim 8, characterized in that: The tops of the dust collecting hood (21) and the lifting hood (28) are connected to the dust collecting machine via a hose.

10. The processing method of the stone surface polishing automation device according to claim 9, characterized in that: The specific steps of this processing method are as follows: Step 1: The stone is transported on the conveyor roller (2) and the conveyor belt (3). When the stone passes under the coarse grinding mechanism (4) and the fine grinding mechanism (5), the second pneumatic cylinder (11) is extended and retracted to drive the second roller seat (12) to move, and the position of the lifting roller (15) is adjusted until the grinding belt (16) contacts the top side of the stone. At the same time, the first pneumatic cylinder (8) is extended and retracted to drive the tension roller (14) to move, and the tightness of the grinding belt (16) is adjusted. The first motor (17) works, and the synchronous wheel (18) and the synchronous belt (19) are driven to drive the fixed roller (13) and the grinding belt (16) to rotate, and the top side of the stone is coarsely ground. The dust generated by the grinding enters the dust collector through the dust hood (21); Step 2: The lifting cover (28) is driven downward by the third pneumatic cylinder (27), and the sleeve (33) is moved downward along the polygonal shaft (32). At this time, the ring cover (30) first contacts the top side of the stone, and as the grinding disc (34) moves downward to contact the top side of the stone, the ring cover (30) compresses the spring (29) in the lifting cover (28) to ensure that the ball bearing on the bottom side of the ring cover (30) is always in contact with the top side of the stone. The threaded rod (25) is driven to rotate by the second motor (24), thereby driving the threaded translation seat (26) to move and adjust the position of the grinding disc (34). The polygonal shaft (32), the sleeve (33) and the grinding disc (34) are rotated by the third motor (31), and the fine grinding and polishing of the stone is completed. The dust generated by the fine grinding and polishing enters the vacuum cleaner through the lifting cover (28) and the ring cover (30).

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