Slurry circulating type double-charging-barrel sand mill based on weight induction

Abstract

The invention relates to the technical field of sand mills, and discloses a slurry circulating type double-material-barrel sand mill based on weight induction, the slurry circulating type double-material-barrel sand mill comprises a base and barrel bodies, a supporting column is installed on a top face bearing of the base, a carrying plate is fixedly installed on the top face of the supporting column, and the barrel bodies are symmetrically arranged above the carrying plate with the supporting column as the center; according to the slurry circulation type double-material-barrel sand mill based on weight induction, by arranging a double-barrel-body structure, alternate circulation operation is achieved, the overall machining efficiency is improved, the weight of slurry in the barrel bodies can be monitored in real time, the feeding amount can be accurately controlled conveniently, and the sanding progress can be mastered conveniently; product quality fluctuation caused by manual judgment errors is reduced, product quality stability is guaranteed, meanwhile, bottom slurry can be lifted to the upper portion to form circulation, it is ensured that materials in a whole barrel are evenly ground, the excessive sanding or agglomeration phenomenon is avoided, the sanding effect is improved, the overall structural design is ingenious, and the slurry production efficiency and quality are remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of sand mills, in particular to a slurry circulation type double-barrel sand mill based on weight sensing. Background Art

[0002] In modern industrial production, sand mills are an important material grinding equipment and are widely used in many fields such as coatings, inks, medicine, and electronic materials. Their function is to grind large particles of raw materials into fine particles that meet production requirements to meet product quality standards and performance requirements. However, existing sand mills still have certain defects, such as: The "vertical sand mill" with application number CN202120143625.9 has many limitations during use: The single material barrel design requires that after each sanding operation, the sanding material in the barrel must be completely discharged and then refilled with sanding slurry before the next operation can be started. This results in a large amount of unproductive waiting time, which seriously restricts the improvement of overall processing efficiency and affects work efficiency. At the same time, it is impossible to monitor the weight of the material, making it difficult to control the feeding amount. During the sanding process, it is impossible to accurately monitor the weight change of the slurry in real time. It is difficult for operators to accurately grasp the amount of material added and the progress of sanding. This not only increases the difficulty and workload of manual operation, but also easily leads to fluctuations in product quality due to human judgment errors. For example, in paint production, if the weight of the pigment slurry cannot be accurately controlled, the color, hiding power and other properties of the paint will deviate; During the sand grinding process, the slurry is prone to local retention due to gravity sedimentation, insufficient flow dynamics and other problems, making it impossible to achieve uniform circulation throughout the barrel. This will not only lead to insufficient sand grinding of the material and uneven particle size distribution, affecting the stability of the final product quality, but may also cause excessive sand grinding or agglomeration due to long-term accumulation of local slurry, further reducing the sand grinding effect and being unfavorable to improving the sand grinding effect of the slurry. In view of this, in order to solve the above problems, we conducted in-depth research and proposed a slurry circulation double-barrel sand mill based on weight sensing. Summary of the Invention

[0003] The object of the present invention is to provide a slurry circulation type double-barrel sand mill based on weight sensing to solve the existing problems raised in the above background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: a weight-sensing-based slurry circulation double-barrel sand mill, comprising a base and a barrel; The top surface of the base is equipped with a support bearing, and a carrier plate is fixedly installed on the top surface of the support. The barrel body is symmetrically arranged above the carrier plate with the support as the center. A support plate is installed on the outer wall of the barrel body through a bearing. The bottom surface of the support plate is connected to a weighing platform installed on the top surface of the carrier plate. A weight sensor is provided on the weighing platform. An electric telescopic rod is fixedly installed on the top surface of the base. A lifting plate is installed on the output end of the electric telescopic rod. A rotating shaft is movably provided on the lifting plate, and a plurality of sanding discs are provided on the rotating shaft. The base is provided with a power mechanism, the lifting plate is provided with a driving mechanism, the bottom surface of the lifting plate is provided with a telescopic mechanism, the bottom of the driving mechanism is provided with a transmission mechanism, the barrel body is provided with a return mechanism for circulating the slurry by utilizing its rotation, the barrel body is knocked by the knocking mechanism when it revolves with the support, and the inside of the knocking mechanism is provided with a linkage mechanism for generating rotation when the barrel body revolves.

[0005] The above technical solution facilitates the realization of alternating circulation operation of double barrels to improve efficiency, monitors the slurry status in real time through weight sensing, and circulates the slurry to enhance the sanding effect, thereby improving the slurry production efficiency and quality.

[0006] As a preferred technical solution of the present invention, a positioning rod is provided on the support plate for longitudinal sliding and passing through, and the positioning rod is fixedly installed on the top surface of the carrier plate.

[0007] The above technical solution makes it easy to guide the support plate vertically through the positioning rod, ensuring that the barrel body maintains a stable posture during revolution, rotation and weighing, avoiding the impact of shaking on sanding accuracy or weight monitoring accuracy.

[0008] As an optimal technical solution of the present invention, the power mechanism includes a servo motor, which is fixedly mounted on the top surface of the base, and the shaft end of the servo motor is keyed to a worm, the worm is meshed with a worm wheel, and the worm wheel is fixedly mounted on the surface of the pillar.

[0009] The above technical solution makes it easy to drive the worm to rotate through the servo motor, and utilize the meshing transmission of the worm and the worm wheel to drive the pillar to rotate, thereby realizing the smooth revolution switching of the double barrels on the carrier plate.

[0010] As a preferred technical solution of the present invention, the driving mechanism includes a driving motor, which is fixedly mounted on the top surface of the bracket, and the bracket is fixedly mounted on the top surface of the base. The output shaft bearing of the driving motor passes through the top of the bracket, and the shaft end of the driving motor is coaxially fixed with a square rod. The outer sliding sleeve of the square rod is provided with a sleeve, and the sleeve is an outer circle and inner square structure that matches the square rod. The longitudinal bearing of the sleeve passes through the lifting plate, and the sleeve is connected to the top end of the rotating shaft through a belt drive device.

[0011] The above technical solution facilitates the sliding cooperation between the square rod and the sleeve, maintains effective power transmission during the lifting process of the lifting plate, ensures that the drive motor can stably drive the rotating shaft and the sanding disc to rotate, and realizes the sanding of the slurry.

[0012] As a preferred technical solution of the present invention, the telescopic mechanism includes a movable rod, which slides longitudinally through the lifting plate, and a limit block is provided at the top of the movable rod, a circular ring is fixedly installed at the bottom end of the movable rod, and a first spring is sleeved on the outer side of the movable rod, the top of the first spring is fixedly connected to the bottom surface of the lifting plate, and the bottom end of the first spring is fixedly connected to the top surface of the circular ring, the bottom surface bearing of the circular ring is connected to a cover plate, and the rotating shaft movably passes through the cover plate, and a sealing ring is installed on the bottom surface of the cover plate.

[0013] The above technical solution makes it easy to use the elastic thrust of the first spring to make the cover fit tightly against the top of the barrel body, and to achieve sealing through the sealing ring to prevent slurry from splashing. At the same time, the cover connected to the bearing can rotate synchronously with the barrel body to avoid interference with the sanding operation. At the same time, the telescopic design can ensure that when the cover is fitted with the barrel body, the lifting plate can continuously drive the sanding disc to move, thereby realizing sanding operations from different heights and improving the sanding effect.

[0014] As a preferred technical solution of the present invention, the transmission mechanism includes a transmission shaft, which is coaxially fixedly installed on the bottom end of the square rod, and a fixed plate is sleeved on the surface of the transmission shaft. The transmission shaft is connected to the fixed plate bearing, and the fixed plate is fixedly installed on the inner wall surface of the bracket. A transmission gear is coaxially fixedly installed on the bottom end of the transmission shaft, and the transmission gear is alternately meshed with the fixed gear rings fixedly installed on the surfaces of the two barrels in sequence.

[0015] The above technical solution makes it easy to transmit the power of the driving motor to the transmission gear through the transmission shaft, and utilizes the alternating engagement of the transmission gear and the fixed gear ring to drive the barrel in the working position to rotate in the opposite direction of the sanding disc, thereby improving the uniformity of sanding.

[0016] As an optimal technical solution of the present invention, the return material mechanism includes a return material barrel, which is fixedly installed on the outer wall of the barrel body, and the return material barrel is fixedly passed through the fixed gear ring and the support plate in sequence, and the return material barrel passes through the circular hole opened on the carrier plate, the lower end of the side plate of the return material barrel is fixedly connected to one end of the through pipe, and one end of the through pipe is fixedly connected to the bottom of the barrel body, and an electromagnetic valve is provided on the through pipe, the center bearing of the inner top surface of the return material barrel is installed with an auger, and the auger bearing passes through the bottom center of the return material barrel, the bottom end of the auger is coaxially fixed with a connecting gear, and the connecting gear is meshed with the inner ring gear ring fixedly installed on the bottom surface of the carrier plate, the upper end of the side wall of the return material barrel is fixedly connected to one end of the return material pipe, and the other end of the return material pipe is fixedly connected to the upper end of the side wall of the barrel body.

[0017] By adopting the above technical solution, when the barrel body rotates, the connecting gear drives the auger to rotate under the meshing action of the inner ring gear, and the slurry at the bottom of the barrel body is pumped to the return barrel through the through pipe. After being lifted by the auger, it is sent back to the upper part of the barrel body through the return pipe, forming a closed loop circulation, solving the slurry sedimentation problem, and ensuring that the material in the entire barrel is evenly ground.

[0018] As an optimal technical solution of the present invention, the knocking mechanism includes a wedge-shaped push block fixedly mounted on the left and right side surfaces of the carrier plate and an annular plate fixedly mounted on the top surface of the base through a mounting rod, the longitudinal axis midline of the annular plate is collinear with the longitudinal axis midline of the pillar, and a notch is opened on the left side of the annular plate, the annular plate is sliding through a plurality of sliding rods along the radial direction, and the inner end of the sliding rod is provided with an inclined block adapted to the wedge-shaped push block, and the inclined block movably abuts against the wedge push block, the outer side of the sliding rod is sleeved with a second spring, and the outer end of the second spring is fixedly connected to the inner side surface of the annular plate, and the inner end of the second spring is fixedly connected to the outer side surface of the inclined block, the outer end of the sliding rod is fixedly mounted with a connecting plate, and the upper end of the inner side surface of the connecting plate is fixedly mounted with a knocking rod, the knocking rod slides through the upper end of the annular plate, and the inner end of the knocking rod movably abuts against the outer wall surface of the barrel body.

[0019] By adopting the above technical solution, when the barrel body revolves through the annular plate, the wedge-shaped push block squeezes the oblique block so that the sliding rod drives the knocking rod to move outward. When the wedge-shaped push block is detached, the second spring returns to drive the knocking rod to hit the barrel body, and the vibration is used to make the slurry attached to the inner wall fall off, avoiding material waste.

[0020] As a preferred technical solution of the present invention, the linkage mechanism includes a plurality of fixed rods fixedly mounted on the inner side of the annular plate, and a residual tooth ring is fixedly mounted on the inner end of the fixed rod, and the residual tooth ring is movably engaged with the fixed tooth ring.

[0021] The above technical solution is adopted, so that when the barrel body revolves through the residual tooth ring, the fixed tooth ring engages with it to produce rotation, so that the auger rotates continuously, ensuring that all the slurry in the return barrel is returned to the barrel body, avoiding residual slurry in the return barrel, and cooperating with the knocking vibration effect to enhance the wall removal effect, while ensuring that the barrel body can still maintain a certain material fluidity when rotating in the non-operating state, which is convenient for unloading.

[0022] As a preferred technical solution of the present invention, one end of the through pipe is provided with a screen, the other end of the return pipe is fixedly connected to one end of the ring pipe, and the ring pipe is fixedly installed on the side wall of the barrel body, the inner side of the ring pipe is provided with a filter, and the other end of the ring pipe is connected and installed with a guide tube, a receiving box installed on the wall of the barrel body is provided below the guide tube, the inner wall surface of the receiving box is longitudinally slidably connected with a sliding plate, and the bottom end of the sliding plate is fixedly connected to one end of the first connecting rod, the sliding plate slides through the bottom of the receiving box, and the other end of the sliding plate is fixedly installed with a first rack, so The first rack is meshed with the first gear, and the first gear is installed on the surface of the shaft, and the shaft bearing is installed on the wall of the barrel body. The second gear is installed on the shaft, and the second gear is meshed with the second rack. The second rack is fixedly connected to one end of the second connecting rod, and the second connecting rod slides through the bottom of the cylinder, and the cylinder is fixedly installed on the side wall of the barrel body. The other end of the second connecting rod is fixedly installed with a push plate, and the push plate is longitudinally slidably connected to the inner wall of the cylinder. The upper end of the side wall of the cylinder is fixedly connected with a delivery tube, and the delivery tube is fixedly passed through the upper end of the side wall of the barrel body.

[0023] The above technical solution makes it easy to screen out the grinding media with less wear through the screen and flow with the slurry. The slurry flows back into the barrel through the filter screen, and the worn grinding media falls to the receiving box, causing the sliding plate to move to the lower end. The differential transmission composed of the first rack, the first gear, the second gear and the second gear drives the second connecting rod to drive the push plate to move upward, so that the new grinding media in the push cylinder enters the barrel through the delivery pipe, thereby realizing the renewal and replacement of the grinding media.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows: the weight-sensing based slurry circulation type double-barrel sand mill is provided with a double-barrel structure. When sanding operation is carried out in one barrel, the other barrel can be loaded or unloaded, thereby realizing alternating circulation operation, effectively reducing the downtime waiting time during single-barrel operation, greatly improving the overall processing efficiency, and being able to monitor the slurry weight in the barrel in real time, facilitating accurate control of the loading amount and mastering the sanding progress, reducing product quality fluctuations caused by human misjudgment, and ensuring product quality stability. At the same time, the slurry at the bottom can be lifted to the upper part to form a circulation, solving the problem of local retention of slurry due to gravity sedimentation, ensuring that the material in the entire barrel is evenly ground, avoiding excessive sanding or agglomeration, and improving the sanding effect. The overall structural design is ingenious, which significantly improves the efficiency and quality of slurry production. The servo motor drives the worm to rotate, and the worm gear drives the support and carrier plate to rotate, realizing the double-barrel switching. This ensures that one barrel can be loaded and unloaded while the other barrel is sanding. This greatly reduces the downtime for loading and unloading during single-barrel operation and significantly improves the overall processing efficiency. By installing a weighing platform with a weight sensor at the bottom of the pallet, the weight changes of the slurry in the barrel can be accurately monitored in real time, making it easier for operators to accurately control the feeding amount and the sanding progress, effectively reducing product quality fluctuations caused by human misjudgment. The lifting plate is driven to move up and down by the electric telescopic rod, so that the lifting plate can drive the rotating shaft and the sanding disc to move downward into the barrel body of the processing position, and the square rod is driven by the motor to drive the sleeve to rotate, so that the rotating shaft and the sanding disc are driven to rotate through the belt transmission device to realize the sanding operation; The lifting plate moves downward to move the cover plate downward to fit the top of the barrel body, and the seal is achieved through the elastic thrust of the first spring and the sealing ring. The cover plate connected to the annular bearing can rotate synchronously with the barrel body to avoid interference with the sanding operation. At the same time, the lifting plate can be driven up and down by the electric telescopic rod while sealing, and the height position of the rotating shaft and the sanding disc can be adjusted to achieve sanding operations from different heights, thereby improving the sanding effect. In addition, by real-time monitoring of the weight change of the slurry during the sanding process, the cover plate can be driven upward by the lifting plate, so that materials can be added during the sanding process. When the square rod rotates, the transmission gear is driven to rotate through the transmission shaft. At this time, the processing barrel body rotates due to the meshing effect of the transmission gear and the fixed gear ring on the processing barrel body, and rotates in the opposite direction of the sanding disc. When the barrel body rotates, the meshing of the connecting gear and the inner ring gear drives the auger to rotate, and the slurry and grinding media at the bottom of the barrel body are pumped to the return barrel through the through pipe and sent back to the upper part of the barrel body through the return pipe, forming a closed loop circulation, solving the problem of local retention of slurry due to gravity sedimentation, ensuring that the material in the whole barrel is evenly ground, avoiding local excessive sanding or agglomeration, and improving the sanding effect; When the barrel body rotates along with the pillar to switch the working position, the wedge-shaped push block that rotates along with the carrier plate will push the inclined block during the rotation process, so that the sliding rod drives the knocking rod to move outward to compress the second spring. After the wedge-shaped push block is separated from the inclined block, the knocking rod is knocked on the barrel body under the action of the second spring's return, and the slurry attached to the inner wall is removed by vibration, thereby reducing material waste. During the process of switching the barrel body's revolution stations, the fixed gear ring on the barrel body at the processing station will disengage from the transmission gear and then mesh with the residual gear ring, causing the barrel body to rotate again during the process of station switching, ensuring the continuous rotation of the auger and ensuring that all the slurry in the return barrel is returned to the barrel body. At the same time, the barrel body's rotation and knocking enhance the slurry wall removal effect while ensuring the fluidity of the slurry in the non-operating state, ensuring the smoothness of material discharge during the revolution; After loading, the barrel body is also struck during the process of revolution to the processing position and rotates by the fixed gear ring and the residual gear ring, which makes the auger rotate and the slurry circulate, thus achieving pre-treatment of the material and improving work efficiency. The wear medium can be separated by the filter, ensuring that the worn grinding medium is discharged while the slurry is circulated and new wear medium that meets the requirements is added at the same time, realizing automatic renewal of the grinding medium, ensuring long-term stable sanding effect and reducing labor maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the transmission gear and the fixed gear ring when they are meshing with each other; Figure 3 Schematic diagram of the connection structure between the worm and the worm wheel of the present invention; Figure 4 This is a schematic diagram of the connection structure between the rotating shaft, the lifting plate and the sanding disc of the present invention; Figure 5 This is a schematic diagram of the connection structure between the ring, the rotating shaft and the sealing ring of the present invention; Figure 6 This is a schematic diagram of the connection structure between the support and the carrier plate of the present invention; Figure 7 This is a schematic diagram of the connection structure between the connecting gear and the inner ring gear of the present invention; Figure 8 This is a schematic diagram of the connection structure between the barrel body, the supporting plate and the return barrel of the present invention; Figure 9 This is a schematic diagram of the cross-sectional connection structure between the storage barrel body and the return barrel of the present invention; Figure 10 This is a schematic diagram of the connection structure between the base and the annular plate of the present invention; Figure 11 Schematic diagram of the connection structure between the annular plate and the knocking rod of the present invention; Figure 12 This is a schematic diagram of the connection structure of the connecting plate, the sliding rod and the knocking rod of the present invention; Figure 13 This is a schematic diagram of the connection structure between the barrel body and the ring tube in the second embodiment of the present invention; Figure 14 This is a schematic diagram of the cross-sectional structure of the barrel in the second embodiment of the present invention; Figure 15 It is a schematic diagram of the cross-sectional structure of the receiving box in the second embodiment of the present invention.

[0026] In the figure: 1. Base; 2. Support; 3. Carrier plate; 4. Barrel; 5. Support plate; 6. Weighing platform; 7. Bracket; 8. Lifting plate; 9. Rotating shaft; 10. Sanding disc; 11. Electric telescopic rod; 12. Positioning rod; 13. Servo motor; 14. Worm; 15. Worm gear; 16. Drive motor; 17. Square rod; 18. Sleeve; 19. Belt drive; 20. Movable rod; 21. Ring; 22. Ring; 23. Cover plate; 24. Sealing ring; 25. Drive shaft; 26. Fixed plate; 27. Drive gear; 28. Fixed gear ring; 29. ​​Return barrel; 30. Through pipe; 31. Auger 32. Connecting gear; 33. Inner gear ring; 34. Return pipe; 35. Wedge-shaped push block; 36. Annular plate; 37. Sliding rod; 38. Bevel block; 39. Second spring; 40. Connecting plate; 41. Knocking rod; 42. Fixing rod; 43. Residual tooth ring; 44. Discharge pipe; 45. Material box; 46. Ring pipe; 47. Filter screen; 48. Conduit; 49. Receiver box; 50. Sliding plate; 51. First connecting rod; 52. First rack; 53. First gear; 54. Shaft; 55. Second gear; 56. Second rack; 57. Second connecting rod; 58. Cylinder; 59. Push plate; 60. Delivery pipe. DETAILED DESCRIPTION

[0027] The following will provide a clear and complete description of 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. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention. Example

[0028] See also Figure 1 - Figure 12The technical solution of the present invention is: a slurry circulation type double-barrel sand mill based on weight sensing, comprising a base 1 and a barrel body 4, the top surface of the base 1 is provided with a controller for controlling various electrical components of the equipment, the top surface of the base 1 is provided with a material box 45 for collecting materials, the top surface of the base 1 is supported by a support 2, and the top surface of the support 2 is fixedly provided with a carrier plate 3, the barrel body 4 is symmetrically arranged above the carrier plate 3 with the support 2 as the center, and a grinding medium is arranged in the barrel body 4, and the grinding medium is a steel ball. A discharge pipe 44 with a valve is fixedly provided at the bottom of the barrel body 4, and a partition net is provided on the top of the discharge pipe 44 to separate the slurry and the grinding medium to prevent the grinding medium from being discharged during discharging, and a support plate 5 is installed on the outer wall surface of the barrel body 4 through a bearing, and a positioning rod 12 is provided on the support plate 5 for longitudinal sliding. Four positioning rods 12 are symmetrically provided in pairs on each support plate 5, and the positioning rods 12 are fixedly installed on the carrier plate 3. The top surface of the plate 3 and the bottom surface of the support plate 5 are connected to the weighing platform 6 installed on the top surface of the carrier plate 3. A weight sensor is provided on the weighing platform 6. An electric telescopic rod 11 is fixedly installed on the top surface of the base 1. A lifting plate 8 is installed on the output end of the electric telescopic rod 11. A rotating shaft 9 is provided through the longitudinal bearing on the lifting plate 8, and a plurality of sanding discs 10 are evenly and equidistantly provided on the rotating shaft 9. The diameter of the sanding disc 10 is smaller than the inner diameter of the barrel body 4. The longitudinal center line of the rotating shaft 9 is collinear with the longitudinal center line of the barrel body 4 located below it. A power mechanism is provided on the base 1, a driving mechanism is provided on the lifting plate 8, a telescopic mechanism is provided on the bottom surface of the lifting plate 8, and a transmission mechanism is provided at the bottom of the driving mechanism. A material return mechanism is provided on the barrel body 4 for circulating the slurry by utilizing its rotation. When the barrel body 4 revolves with the pillar 2, it is knocked by the knocking mechanism, and a linkage mechanism for generating rotation when the barrel body 4 revolves is provided on the inside of the knocking mechanism.

[0029] The power mechanism includes a servo motor 13 , which is fixedly mounted on the top surface of the base 1 , and a worm 14 is keyed to the shaft end of the servo motor 13 , which is meshed with a worm gear 15 , and the worm gear 15 is fixedly mounted on the surface of the pillar 2 .

[0030] The driving mechanism includes a driving motor 16, which is fixedly mounted on the top surface of the bracket 7, and the bracket 7 is fixedly mounted on the top surface of the base 1. The output shaft bearing of the driving motor 16 passes through the top of the bracket 7, and the shaft end of the driving motor 16 is coaxially fixed with a square rod 17. The outer sliding sleeve of the square rod 17 is provided with a sleeve 18, and the sleeve 18 is an outer circle and inner square structure that matches the square rod 17. The longitudinal bearing of the sleeve 18 passes through the lifting plate 8, and the sleeve 18 is connected to the top of the rotating shaft 9 through a belt transmission device 19.

[0031] The telescopic mechanism includes a movable rod 20, which slides longitudinally through the lifting plate 8, and a limit block is provided at the top of the movable rod 20. A circular ring 21 is fixedly installed at the bottom end of the movable rod 20, and a first spring 22 is sleeved on the outer side of the movable rod 20. The top of the first spring 22 is fixedly connected to the bottom surface of the lifting plate 8, and the bottom end of the first spring 22 is fixedly connected to the top surface of the circular ring 21. The bottom bearing of the circular ring 21 is connected to a cover plate 23, and the rotating shaft 9 movably passes through the cover plate 23. A sealing ring 24 is installed on the bottom surface of the cover plate 23, and the inner and outer diameters of the sealing ring 24 are equal to the inner and outer diameters of the barrel body 4.

[0032] The transmission mechanism includes a transmission shaft 25, which is coaxially fixedly installed on the bottom end of the square rod 17, and a fixed plate 26 is sleeved on the surface of the transmission shaft 25. The transmission shaft 25 is connected to the fixed plate 26 by bearings, and the fixed plate 26 is fixedly installed on the inner wall surface of the bracket 7. A transmission gear 27 is coaxially fixedly installed on the bottom end of the transmission shaft 25, and the transmission gear 27 is alternately meshed with the fixed gear rings 28 fixedly installed on the surfaces of the two barrel bodies 4 in sequence.

[0033] The return material mechanism includes a return material cylinder 29, which is fixedly mounted on the outer wall of the barrel body 4, and the return material cylinder 29 is fixedly passed through the fixed gear ring 28 and the support plate 5 in sequence, and the return material cylinder 29 passes through the circular hole opened on the carrier plate 3, and the lower end of the side plate of the return material cylinder 29 is fixedly connected to one end of the through pipe 30, and one end of the through pipe 30 is fixedly connected to the bottom of the barrel body 4, and an electromagnetic valve is provided on the through pipe 30, and the center bearing of the inner top surface of the return material cylinder 29 is installed with an auger 31, and the auger 31 bearing passes through the bottom center of the return material cylinder 29, and the bottom end of the auger 31 is coaxially fixedly mounted with a connecting gear 32, and the connecting gear 32 is meshed with the inner ring gear 33 fixedly mounted on the bottom surface of the carrier plate 3, the upper end of the side wall of the return material cylinder 29 is fixedly connected to one end of the return material pipe 34, and the other end of the return material pipe 34 is fixedly connected to the upper end of the side wall of the barrel body 4.

[0034] The knocking mechanism includes a wedge-shaped push block 35 fixedly mounted on the left and right side surfaces of the carrier plate 3 and an annular plate 36 fixedly mounted on the top surface of the base 1 through a mounting rod. The longitudinal axis centerline of the annular plate 36 is collinear with the longitudinal axis centerline of the pillar 2, and a notch is opened on the left side of the annular plate 36. The annular plate 36 slides through a plurality of sliding rods 37 along the radial direction, and the inner end of the sliding rod 37 is provided with an inclined block 38 adapted to the wedge-shaped push block 35, and the inclined block 38 movably abuts against the wedge push block 35. The outer side of the sliding rod 37 is sleeved with a second spring 39, and the outer end of the second spring 39 is fixedly connected to the inner side surface of the annular plate 36, and the inner end of the second spring 39 is fixedly connected to the outer side surface of the inclined block 38. The outer end of the sliding rod 37 is fixedly mounted with a connecting plate 40, and the upper end of the inner side surface of the connecting plate 40 is fixedly mounted with a knocking rod 41. The knocking rod 41 slides through the upper end of the annular plate 36, and the inner end of the knocking rod 41 movably abuts against the outer wall surface of the barrel body 4.

[0035] The linkage mechanism includes a plurality of fixed rods 42 fixedly mounted on the inner side of the annular plate 36, and a residual tooth ring 43 is fixedly mounted on the inner end of the fixed rod 42. The residual tooth ring 43 is movably engaged with the fixed tooth ring 28. When the fixed tooth ring 28 is engaged with the residual tooth ring 43, the rotation direction of the barrel body 4 generated by the revolution of the carrier plate 3 is the same as the rotation direction when the transmission gear 27 drives the fixed tooth ring 28.

[0036] Working principle: When in use, first add the slurry to be sanded into one of the barrels 4. The weight sensor on the weighing platform 6 will monitor the slurry weight in real time and transmit the data to the controller. The controller will determine whether the loading amount meets the requirements based on the initial weight. Start the equipment, the electric telescopic rod 11 drives the lifting plate 8 to descend, so that the rotating shaft 9 and the sanding disc 10 enter the barrel body 4 at the processing position. At the same time, the cover plate 23 is tightly attached to the top of the barrel body 4 under the action of the first spring 22, and the sealing is achieved by the sealing ring 24; The driving motor 16 is started, and the rotating shaft 9 and the sanding disc 10 are driven to rotate through the square rod 17, the sleeve 18 and the belt transmission device 19, and the ring 21 and the cover plate 23 are rotated relative to each other to ensure the effective sanding operation. During this process, the lifting plate 8, the rotating shaft 9 and the sanding disc 10 can be driven by the electric telescopic rod 11 to adjust the height position. At the same time, the cover plate 23 is always attached to the top of the barrel 4, so that the sanding operation of the slurry at different height positions can be achieved; When the square rod 17 rotates, the transmission gear 27 is driven to rotate through the transmission shaft 25. At this time, the transmission gear 27 is engaged with the fixed gear ring 28 on the processing barrel body 4, driving the barrel body 4 to rotate in the opposite direction to the sanding disc 10, thereby improving the uniformity of sanding; When the barrel 4 rotates, the connecting gear 32 drives the auger 31 to rotate under the meshing action of the inner ring gear 33, and the solenoid valve on the through pipe 30 opens, and the slurry and grinding medium at the bottom of the barrel 4 are pumped into the return cylinder 29. After being lifted by the auger 31, they are sent back to the upper part of the barrel 4 through the return pipe 34, forming a closed loop. During this process, the weight sensor monitors the change of the slurry weight in real time, which facilitates the precise control of the feeding amount and the progress of the sanding. If necessary, the cover plate 23 can be moved up by the lifting plate 8 to add materials during the sanding process. When the barrel 4 completes the sanding operation, the electric telescopic rod 11 contracts and drives the lifting plate 8 to rise, so that the sanding disc 10 is separated from the barrel 4. The servo motor 13 is started, driving the worm 14 to rotate, and the worm gear 15 drives the support 2 and the carrier plate 3 to rotate, realizing the revolution switching of the two barrels 4; When the barrel body 4 at the processing position revolves, the material is immediately discharged through the discharge pipe 44. When the barrel body 4 revolves through the annular plate 36, the wedge-shaped push block 35 squeezes the inclined block 38, so that the slide bar 37 drives the knocking rod 41 to move outward and compress the second spring 39. When the wedge-shaped push block 35 disengages from the inclined block 38, the second spring 39 resets and drives the knocking rod 41 to hit the barrel body 4, so that the slurry attached to the inner wall falls off. At the same time, during the revolution of the barrel body 4, the fixed gear ring 28 will engage with the residual gear ring 43 to produce rotation, ensuring that the auger 31 continues to rotate, and the residual slurry in the return barrel 29 is sent back to the barrel body 4, thereby enhancing the wall removal effect, ensuring the effective unloading of the slurry, and loading after the unloading is completed; After loading, the barrel body 4 is struck by the knocking rod 41 during the process of revolution and turning to the processing position, and rotates by meshing the fixed gear ring 28 installed on its surface with the residual gear ring 43, ensuring the synchronous rotation of the auger 31 to realize the slurry circulation and achieve the pre-treatment of the slurry, until the barrel body 4 rotates to the processing position, the fixed gear ring 28 on its surface is disengaged from the residual gear ring 43 and meshed with the transmission gear 27; After the switching is completed, the electric telescopic rod 11 drives the lifting plate 8 again, so that the sanding disc 10 enters the barrel body 4 at the current processing position to perform sanding operation, realizing the double-barrel alternating cycle operation. Example

[0037] Specific reference Figure 13-15, the difference between this embodiment and the first embodiment is that the other end of the return pipe 34 is fixedly connected to one end of the ring pipe 46, and the ring pipe 46 is fixedly installed on the side wall of the barrel body 4, and a filter screen 47 is provided on the inner side of the ring pipe 46. The aperture of the filter screen 47 is smaller than the diameter of the grinding medium and larger than the aperture of the partition screen on the discharge pipe 44, and the other end of the ring pipe 46 is connected to a guide tube 48, and the connection between the ring pipe 46 and the guide tube 48 is lower than the connection between the ring pipe 46 and the return pipe 34. A receiving box 49 installed on the wall of the barrel body 4 is provided below the guide tube 48, and a sliding plate 50 is longitudinally slidably connected to the inner wall surface of the receiving box 49, and the bottom end of the sliding plate 50 is fixedly connected to one end of the first connecting rod 51, the sliding plate 50 slides through the bottom of the receiving box 49, and the other end of the sliding plate 50 is fixedly installed with the first connecting rod 51. A rack 52, the first rack 52 is meshed with the first gear 53, and the first gear 53 is installed on the surface of the shaft 54, and the shaft 54 ​​bearing is installed on the wall of the barrel body 4, a second gear 55 is installed on the shaft 54, and the second gear 55 is meshed with the second rack 56, the second rack 56 is fixedly connected to one end of the second connecting rod 57, and the second connecting rod 57 slides through the bottom of the cylinder 58, and the cylinder 58 is fixedly installed on the side wall of the barrel body 4, the other end of the second connecting rod 57 is fixedly installed with a push plate 59, and the push plate 59 is longitudinally slidably connected to the inner wall of the cylinder 58, the upper end of the side wall of the cylinder 58 is fixedly connected with a delivery tube 60, and the delivery tube 60 is fixedly passed through the upper end of the side wall of the barrel body 4, and the connection between the delivery tube 60 and the cylinder 58 is higher than the connection between the delivery tube 60 and the barrel body 4.

[0038] During the sanding operation, the barrel 4 rotates, driving the slurry and grinding media inside to mix and move. The screen at one end of the through pipe 30 will filter out the grinding media that has become smaller in size after being worn, and it will enter the return barrel 29 together with the slurry. The slurry and the worn grinding media are lifted to the return pipe 34 by the auger 31 and then enter the inside of the annular pipe 46. The filter 47 inside the annular pipe 46 separates the slurry from the worn grinding media. The slurry passes through the filter 47 and enters the barrel 4 to continue the sanding operation, while the worn grinding media falls into the receiving box 49 through the guide tube 48. After the worn grinding media falls into the receiving box 49, its gravity pushes the sliding plate 50 downward; the sliding plate 50 drives the first rack 52 to move downward synchronously through the first connecting rod 51, and the first rack 52 is engaged with the first gear 53 for transmission, so that the shaft 54 ​​drives the second gear 55 to rotate; the second gear 55 is engaged with the second rack 56, driving the second connecting rod 57 to move upward, and the pushing plate 59 at the top of the second connecting rod 57 moves upward in the cylinder 58, pressing the new grinding media stored in the cylinder 58 into the barrel 4 through the feeding pipe 60, thereby realizing automatic replenishment of the grinding media and ensuring the stability of the total amount of media and grinding efficiency during the sanding process; When the barrel body 4 completes the sanding operation and switches the workstation, the worn grinding media in the receiving box 49 can be cleaned to prepare for the next round of sanding cycle.

[0039] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0040] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A weight-sensing slurry circulation double-barrel sand mill, comprising a base (1) and a barrel (4), characterized in that: The top surface of the base (1) is equipped with a support (2) via a bearing, and the top surface of the support (2) is fixedly equipped with a carrier (3). The barrel (4) is symmetrically arranged above the carrier (3) with the support (2) as the center. The outer wall of the barrel (4) is provided with a support plate (5) through a bearing. The bottom surface of the support plate (5) is connected to a weighing platform (6) installed on the top surface of the carrier (3). A weight sensor is provided on the weighing platform (6). The top surface of the base (1) is fixedly equipped with an electric telescopic rod (11). The output end of the electric telescopic rod (11) is equipped with a lifting plate (8). A rotating shaft (9) is movably provided on the lifting plate (8), and a plurality of sanding discs (10) are provided on the rotating shaft (9). The base (1) is provided with a power mechanism, the lifting plate (8) is provided with a driving mechanism, the bottom surface of the lifting plate (8) is provided with a telescopic mechanism, the bottom of the driving mechanism is provided with a transmission mechanism, the barrel (4) is provided with a material return mechanism for circulating the slurry by utilizing its rotation, the barrel (4) is struck by the knocking mechanism when it revolves with the support (2), and a linkage mechanism for generating rotation when the barrel (4) revolves is provided inside the knocking mechanism.

2. The weight-sensing slurry circulation double-barrel sand mill according to claim 1, characterized in that: A positioning rod (12) is provided on the support plate (5) and is longitudinally slidably penetrated therethrough, and the positioning rod (12) is fixedly mounted on the top surface of the carrier plate (3).

3. The weight-sensing slurry circulation double-barrel sand mill according to claim 1, characterized in that: The power mechanism includes a servo motor (13), the servo motor (13) is fixedly mounted on the top surface of the base (1), and the shaft end of the servo motor (13) is keyed to a worm (14), the worm (14) is meshedly connected to a worm wheel (15), and the worm wheel (15) is fixedly mounted on the surface of the pillar (2).

4. The weight-sensing slurry circulation double-barrel sand mill according to claim 1, characterized in that: The driving mechanism includes a driving motor (16), the driving motor (16) is fixedly mounted on the top surface of the bracket (7), the bracket (7) is fixedly mounted on the top surface of the base (1), the output shaft bearing of the driving motor (16) passes through the top of the bracket (7), and the shaft end of the driving motor (16) is coaxially fixedly mounted with a square rod (17), the outer sliding sleeve of the square rod (17) is provided with a sleeve (18), and the sleeve (18) is a structure with an outer circle and an inner square that matches the square rod (17), the longitudinal bearing of the sleeve (18) passes through the lifting plate (8), and the sleeve (18) is connected to the top end of the rotating shaft (9) through a belt transmission device (19).

5. The weight-sensing slurry circulation double-barrel sand mill according to claim 1, characterized in that: The telescopic mechanism includes a movable rod (20), the movable rod (20) longitudinally slides through the lifting plate (8), and a limit block is provided at the top end of the movable rod (20), a circular ring (21) is fixedly installed at the bottom end of the movable rod (20), and a first spring (22) is sleeved on the outer side of the movable rod (20), the top end of the first spring (22) is fixedly connected to the bottom surface of the lifting plate (8), and the bottom end of the first spring (22) is fixedly connected to the top surface of the circular ring (21), the bottom surface bearing of the circular ring (21) is connected to a cover plate (23), and the rotating shaft (9) movably passes through the cover plate (23), and the bottom surface of the cover plate (23) is installed with a sealing ring (24).

6. The weight-sensing slurry circulation double-barrel sand mill according to claim 4, characterized in that: The transmission mechanism comprises a transmission shaft (25), the transmission shaft (25) being coaxially fixedly mounted on the bottom end of the square rod (17), and a fixed plate (26) being sleeved on the surface of the transmission shaft (25), the transmission shaft (25) being bearing-connected to the fixed plate (26), and the fixed plate (26) being fixedly mounted on the inner wall surface of the bracket (7), and a transmission gear (27) being coaxially fixedly mounted on the bottom end of the transmission shaft (25), and the transmission gear (27) being alternately meshed with fixed gear rings (28) fixedly mounted on the surfaces of the two barrel bodies (4).

7. The weight-sensing slurry circulation double-barrel sand mill according to claim 6, characterized in that: The return material mechanism includes a return material cylinder (29), the return material cylinder (29) is fixedly mounted on the outer wall of the barrel body (4), and the return material cylinder (29) is fixedly passed through the fixed gear ring (28) and the support plate (5) in sequence, and the return material cylinder (29) passes through the circular hole opened on the carrier plate (3), the lower end of the side plate of the return material cylinder (29) is fixedly connected to one end of the through pipe (30), and one end of the through pipe (30) is fixedly connected to the bottom of the barrel body (4), and a solenoid valve is provided on the through pipe (30), and the return material cylinder The center bearing of the inner top surface of the (29) is equipped with an auger (31), and the bearing of the auger (31) passes through the bottom center of the return barrel (29). The bottom end of the auger (31) is coaxially fixedly equipped with a connecting gear (32), and the connecting gear (32) is meshed with an inner ring gear (33) fixedly installed on the bottom surface of the carrier plate (3). The upper end of the side wall of the return barrel (29) is fixedly connected to one end of the return pipe (34), and the other end of the return pipe (34) is fixedly connected to the upper end of the side wall of the barrel body (4).

8. The weight-sensing slurry circulation double-barrel sand mill according to claim 6, characterized in that: The knocking mechanism includes a wedge-shaped push block (35) fixedly mounted on the left and right sides of the carrier plate (3) and an annular plate (36) fixedly mounted on the top surface of the base (1) through a mounting rod, the longitudinal axis centerline of the annular plate (36) is collinear with the longitudinal axis centerline of the pillar (2), and a notch is provided on the left side of the annular plate (36), the annular plate (36) is provided with a plurality of sliding rods (37) slidingly passing through the annular plate (36) in the radial direction, and an inclined block (38) adapted to the wedge-shaped push block (35) is provided at the inner end of the sliding rod (37), and the inclined block (38) and the wedge-shaped push block (35) are movable. The outer side of the slide rod (37) is provided with a second spring (39), and the outer end of the second spring (39) is fixedly connected to the inner side of the annular plate (36), and the inner end of the second spring (39) is fixedly connected to the outer side of the inclined block (38). The outer end of the slide rod (37) is fixedly mounted with a connecting plate (40), and the upper end of the inner side of the connecting plate (40) is fixedly mounted with a knocking rod (41), the knocking rod (41) slides through the upper end of the annular plate (36), and the inner end of the knocking rod (41) is movably abutted against the outer wall of the barrel body (4).

9. The weight-sensing slurry circulation double-barrel sand mill according to claim 8, characterized in that: The linkage mechanism comprises a plurality of fixed rods (42) fixedly mounted on the inner side of the annular plate (36), and a residual tooth ring (43) is fixedly mounted on the inner end of the fixed rod (42), and the residual tooth ring (43) is movably engaged with the fixed tooth ring (28).

10. The weight-sensing slurry circulation double-barrel sand mill according to claim 7, characterized in that: One end of the through pipe (30) is provided with a screen, the other end of the return pipe (34) is fixedly connected to one end of the ring pipe (46), and the ring pipe (46) is fixedly installed on the side wall of the barrel body (4), the inner side of the ring pipe (46) is provided with a filter (47), and the other end of the ring pipe (46) is connected and installed with a guide tube (48), and a receiving box (49) installed on the wall of the barrel body (4) is provided below the guide tube (48), and the inner wall surface of the receiving box (49) is longitudinally slidably connected with a sliding plate (50), and the bottom end of the sliding plate (50) is fixedly connected to one end of the first connecting rod (51), the sliding plate (50) slides through the bottom of the receiving box (49), and the other end of the sliding plate (50) is fixedly installed with a first rack (52), and the first rack (52) is meshed and connected with the first connecting rod (51). A gear (53) is provided, and the first gear (53) is mounted on the surface of the shaft (54), and the shaft (54) bearing is mounted on the wall of the barrel (4), a second gear (55) is mounted on the shaft (54), and the second gear (55) is meshed with a second rack (56), the second rack (56) is fixedly connected to one end of a second connecting rod (57), and the second connecting rod (57) slides through the bottom of a cylinder (58), and the cylinder (58) is fixedly mounted on the side wall of the barrel (4), a push plate (59) is fixedly mounted on the other end of the second connecting rod (57), and the push plate (59) is longitudinally slidably connected to the inner wall of the cylinder (58), the upper end of the side wall of the cylinder (58) is fixedly connected with a delivery pipe (60), and the delivery pipe (60) is fixedly passed through the upper end of the side wall of the barrel (4).

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