Dispensing and grinding device

Abstract

The invention discloses a dispensing and grinding device, and relates to the technical field of grinding equipment. The device comprises a grinding chamber, a grinding ring is rotatably connected into the grinding chamber, the device further comprises a blade anti-sticking assembly, the blade anti-sticking assembly comprises a conveying barrel, the conveying barrel is arranged in the grinding chamber, a rotating rod is rotatably connected into the conveying barrel, auger blades are fixedly connected to the circumferential side face of the rotating rod, and lug plates are fixedly connected to the circumferential side face of the rotating rod; a lug plate is arranged on the eccentric screening hopper, two knocking rods are symmetrically connected to the lug plate in a sliding mode, the knocking rods penetrate through and are arranged on the auger blades in a sliding mode, a plurality of rubber balls are evenly and fixedly connected to the circumferential side faces of the knocking rods, and guide balls are fixedly connected to the ends of the knocking rods. In the rotating process of the auger blades, the multiple rubber balls hit the blades periodically, and therefore powder can be prevented from caking on the blades, and the using effect of the device is improved.

Description

Technical Field

[0001] This invention relates to the field of grinding equipment technology, and more particularly to a medicine grinding device. Background Technology

[0002] Drug milling is a key pretreatment step in pharmaceutical manufacturing, designed to reduce the particle size of active pharmaceutical ingredients (APIs) through mechanical force. Uniform and compliant drug powders are crucial for ensuring mixing homogeneity in subsequent formulation processes, dissolution rates of the active ingredient, and ultimately, bioavailability.

[0003] To achieve continuous and efficient grinding, existing technologies typically incorporate grinding rings within the grinding drum. After initial grinding by the rings, the material is sorted through a sieve. Powder meeting the fineness requirements is collected as finished product, while coarse powder that does not meet the standards is fed into a screw conveyor. The screw conveyor returns the coarse powder to the inlet of the grinding zone, allowing it to participate in the grinding process again, thus completing the closed loop of powder grinding. This continues until the powder meets the size requirements of the sieve, at which point it is collected.

[0004] In actual use, when processing fine drug powders with a certain degree of moisture or viscosity, the powder easily adheres to the surface of the auger's spiral blades. This adhesion accumulates and clumps, leading to decreased conveying efficiency, increased power load, and ultimately, pipe blockage. Once the auger is blocked, the entire automatic cycle is forced to stop, requiring manual cleaning, which severely impacts the equipment's continuous operation capability and production efficiency. Summary of the Invention

[0005] The purpose of this invention is to solve the problem in the prior art where the powder easily sticks to the blade surface during the transfer of coarse powder after grinding, thus causing auger blockage. Therefore, a powder preparation and grinding device is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design a drug preparation and grinding device, including a grinding chamber, in which a grinding ring is rotatably connected, and a blade anti-sticking component, which includes a transfer barrel disposed in the grinding chamber. A rotating rod is rotatably connected inside the transfer barrel, and a screw conveyor blade is fixedly connected to the circumference of the rotating rod. An ear plate is fixedly connected to the circumference of the rotating rod, and two striking rods are symmetrically and slidably connected to the ear plate. The striking rods pass through and are slidably disposed on the screw conveyor blades. Several rubber balls are evenly fixedly connected to the circumference of the striking rods, and a guide ball is fixedly connected to the end of the striking rod. A guide ring is fixedly connected to the bottom surface of the inner side of the transfer barrel, and a guide block is fixedly connected to the guide ring. The guide ball and the guide block correspond to each other.

[0008] Preferably, the distance between the rubber ball and the corresponding auger blade is the same.

[0009] Preferably, a circular plate is fixedly connected to the periphery of the striking rod, a first spring is fixedly connected between the circular plate and the ear plate, and a powder guiding assembly is fixedly connected to the side of the transmission barrel.

[0010] Preferably, the powder guiding assembly includes an eccentric feed pipe connected to a conveying barrel, an eccentric sieve hopper fixedly connected to the eccentric feed pipe, a connecting ring fixedly connected to the eccentric sieve hopper, a sliding fit between the connecting ring and the grinding chamber, a plurality of sliding rods uniformly fixedly connected to the circumference of the connecting ring, a plurality of mating seats uniformly fixedly connected to the circumference of the grinding chamber, a sliding fit between the mating seats and corresponding sliding rods, a plurality of second springs fixedly connected between the mating seats and the connecting ring, and a fixed connection between the conveying barrel and the eccentric sieve hopper.

[0011] Preferably, a screen bucket anti-clogging component is fixedly connected to the rotating rod. The screen bucket anti-clogging component includes a spline body, which is fixedly connected to one end of the rotating rod. A first disc is fixedly connected to the other end of the rotating rod. A protrusion is fixedly connected to the bottom surface of the first disc. A cross-shaped placement platform is fixedly connected to the grinding chamber. A second disc is fixedly connected to the cross-shaped placement platform. A convex ball is fixedly connected to the surface of the second disc, and the convex ball corresponds to the protrusion.

[0012] Preferably, a drive assembly is fixedly connected to the grinding chamber. The drive assembly includes a positioning seat, which is fixedly connected to the grinding chamber. A first motor is fixedly connected to the surface of the positioning seat. A spline sleeve is rotatably connected to the grinding chamber. A rotating shaft is fixedly connected to the spline sleeve. The output end of the first motor is fixedly connected to the rotating shaft. The spline sleeve is adapted to the spline body. The transmission barrel is located at the center of the grinding chamber. Two discharge pipes are symmetrically connected to the periphery of the transmission barrel.

[0013] Preferably, straight rods are uniformly fixedly connected to the surface of the grinding ring, toothed rings are fixedly connected between the straight rods, the toothed rings are rotatably connected to the grinding chamber, a second motor is fixedly connected to the surface of the grinding chamber, a round rod is rotatably connected through the eccentric position of the grinding chamber, the output end of the first motor is fixedly connected to the round rod, a gear is fixedly connected to the end of the round rod, and the gear meshes with the toothed ring.

[0014] Preferably, a guide bar is fixedly connected to the grinding chamber, the guide bar is coaxially arranged with the grinding ring, a support ring is fixedly connected to the grinding chamber, and a support seat is fixedly connected to the bottom surface of the support ring.

[0015] The beneficial effects of the medicine grinding device proposed in this invention are as follows: When the device is in use, the rotating rod drives the auger blades to transport the powder. When the guide ball on the auger blade passes the guide block, it will drive the rubber ball to strike the blade once, thereby periodically cleaning the powder clumps on the auger blades and improving the device's performance.

[0016] The rotating rod synchronously drives the protrusion to rotate along its axis. When the protrusion rotates past the convex block, it will cause the entire eccentric screen hopper to vibrate once, which can prevent the powder from sticking and getting stuck on the screen hopper, thus further improving the effect of drug grinding. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a drug grinding device.

[0018] Figure 2 This is a schematic cross-sectional view of the grinding chamber structure of the present invention.

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the grinding chamber, eccentric screen hopper, and grinding ring of the present invention.

[0020] Figure 4 This is an assembly diagram of the grinding chamber and grinding ring of the present invention.

[0021] Figure 5 This is an assembly diagram of the slide bar and connecting ring of the present invention.

[0022] Figure 6 This is an assembly diagram of the grinding chamber and connecting ring of the present invention.

[0023] Figure 7 for Figure 6 Enlarged view of section A in the middle.

[0024] Figure 8 for Figure 6 Enlarged view of section B.

[0025] Figure 9 for Figure 6 Enlarged view of section C.

[0026] Figure 10 This is an assembly diagram of the grinding chamber and the cross-shaped placement stage of the present invention.

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 1. Grinding chamber; 2. Fitting seat; 3. Slide rod; 4. Second spring; 5. Connecting ring; 6. Eccentric screen hopper; 7. Eccentric feed pipe; 8. Transfer barrel; 9. Rotating rod; 10. Screwdriver blade; 11. Discharge pipe; 12. First disc; 13. Protrusion; 14. Cross placement platform; 15. Second disc; 16. Convex ball; 17. Positioning seat; 18. First motor; 19. Rotating shaft; 20. Spline sleeve; 21. Spline body; 22. Ear plate; 23. Guide bar; 24. Striking rod; 25. Rubber ball; 26. Circular plate; 27. First spring; 28. Guide ball; 29. ​​Guide ring; 30. Guide block; 31. Second motor; 32. Round rod; 33. Gear; 34. Gear ring; 35. Straight rod; 36. Grinding ring; 37. Support ring; 38. Support seat. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0030] Example 1

[0031] Reference Figure 1-10 This invention relates to a medicine grinding device, comprising a grinding chamber 1, a grinding ring 36 rotatably connected within the grinding chamber 1, and a blade anti-sticking assembly, which includes a transfer tank 8 disposed within the grinding chamber 1. A rotating rod 9 is rotatably connected within the transfer tank 8, and auger blades 10 are fixedly connected to the circumference of the rotating rod 9. Ear plates 22 are fixedly connected to the circumference of the rotating rod 9, and two striking rods 24 are symmetrically slidably connected to the ear plates 22. The striking rods 24 penetrate and slidably mount on the auger blades 10. Several rubber balls 25 are evenly fixedly connected to the periphery of the conveying barrel 8. A guide ball 28 is fixedly connected to the end of the striking rod 24. A guide ring 29 is fixedly connected to the bottom of the conveying barrel 8. A guide block 30 is fixedly connected to the guide ring 29. The guide ball 28 corresponds to the guide block 30. The distance between the rubber ball 25 and the corresponding auger blade 10 is consistent. A circular plate 26 is fixedly connected to the periphery of the striking rod 24. A first spring 27 is fixedly connected between the circular plate 26 and the ear plate 22. A powder guiding component is fixedly connected to the side of the conveying barrel 8.

[0032] The operation process of this embodiment is as follows: A feed pipe is set on the grinding chamber 1. After the drug to be ground is put into the grinding chamber 1 through the feed pipe, the drug is located between the grinding ring 36 and the grinding chamber 1. The upper surface of the grinding ring 36 is frustum-shaped. When the grinding ring 36 rotates, the drug is affected by centrifugal force and falls between the grinding ring 36 and the grinding chamber 1. At this time, the grinding ring 36 rotates at high speed. When the drug falls, it is ground into fine particles. Particles of appropriate size fall into the bottom of the device for collection. Particles that are too large and do not meet the size requirements enter the transfer tank 8 and return to the surface of the grinding ring 36 for grinding again.

[0033] Please see Figure 6-8 After the drug particles enter the transfer tank 8, the rotating rod 9 rotates, driving the auger blades 10 to rotate, thereby vertically lifting the particles into the transfer tank 8 to the discharge end of the transfer tank 8, and then dropping them back between the grinding ring 36 and the grinding chamber 1 for re-grinding. Simultaneously, the rotating rod 9 drives the ear plate 22 to rotate within the transfer tank 8. Since both striking rods 24 are in sliding engagement with the auger blades 10 and ear plate 22, the two striking rods 24 rotate synchronously with the rotating rod 9 within the transfer tank 8. The first spring 27 continuously pushes the circular plate 26 and the striking rods 24 downwards, causing the guide ball 28 at the bottom of the striking rod 24 to slide along the guide ring 29 during rotation. A guide block 30 is provided on the guide ring 29. During the rotation of the guide ball 28, whenever the guide ball 28 passes the guide block... At 30, each strike rod 24 will move upward a short distance. Initially, the rubber balls 25 on the strike rod 24 are not in contact with the auger blades 10. When the strike rod 24 moves upward, it will cause the rubber balls 25 to move upward a short distance. At this time, the rubber balls 25 will strike the auger blades 10 once. A buffer pad is set at the contact position between the auger blades 10 and the rubber balls 25 to prevent damage to the auger blades 10 caused by the rubber balls 25. That is, during the process of the auger blades 10 rotating and vertically lifting the powder from bottom to top, the two sets of strike rods 24 sliding on the auger blades 10 will periodically strike the auger blades 10, thereby preventing the rising powder from clumping and accumulating on the blades, thus preventing the auger blades 10 from getting blocked during the grinding process.

[0034] Example 2

[0035] In actual use, the drug is refractory and then screened. Particles that meet the size requirements are ground and collected, while particles that do not meet the size requirements are sent to transfer tank 8 for further grinding. During the screening process, some particles may become stuck and clogged on the screen, reducing the device's effectiveness. Therefore, please refer to [the relevant documentation / reference needed]. Figure 5-7 Based on the first specific embodiment, the powder guiding component includes an eccentric feed pipe 7, which is connected to the conveying barrel 8. An eccentric sieve hopper 6 is fixedly connected to the eccentric feed pipe 7, and a connecting ring 5 is fixedly connected to the eccentric sieve hopper 6. The connecting ring 5 is slidably connected to the grinding chamber 1. Several sliding rods 3 are evenly fixedly connected to the circumference of the connecting ring 5. Several mating seats 2 are evenly fixedly connected to the circumference of the grinding chamber 1. The mating seats 2 are slidably connected to the corresponding sliding rods 3. Several second springs 4 are fixedly connected between the mating seats 2 and the connecting ring 5. The conveying barrel 8 is fixedly connected to the eccentric sieve hopper 6.

[0036] A screen bucket anti-clogging component is fixedly connected to the rotating rod 9. The screen bucket anti-clogging component includes a spline body 21, which is fixedly connected to one end of the rotating rod 9. A first disc 12 is fixedly connected to the other end of the rotating rod 9. A protrusion 13 is fixedly connected to the bottom surface of the first disc 12. A cross-shaped placement platform 14 is fixedly connected inside the grinding chamber 1. A second disc 15 is fixedly connected to the cross-shaped placement platform 14. A convex ball 16 is fixedly connected to the surface of the second disc 15. The convex ball 16 corresponds to the protrusion 13. The grinding chamber 1 is fixedly... A drive assembly is connected, including a positioning seat 17, which is fixedly connected to the grinding chamber 1. A first motor 18 is fixedly connected to the surface of the positioning seat 17. A spline sleeve 20 is rotatably connected to the grinding chamber 1. A rotating shaft 19 is fixedly connected to the spline sleeve 20. The output end of the first motor 18 is fixedly connected to the rotating shaft 19. The spline sleeve 20 is adapted to the spline body 21. The transmission barrel 8 is located at the center of the grinding chamber 1. Two discharge pipes 11 are symmetrically connected to the sides of the transmission barrel 8.

[0037] The operation process in this embodiment is as follows: Under normal conditions, the position of the eccentric screen hopper 6 is as follows: Figure 5 As shown, the second spring 4 pushes the connecting ring 5 to maintain a relatively stable state with the eccentric sieve hopper 6. At this time, the top of the connecting ring 5 does not contact the grinding chamber 1. After the powder is ground by the grinding ring 36, the ground powder falls into the eccentric sieve hopper 6. The eccentric sieve hopper 6 is provided with multiple screening holes. After the particles enter the eccentric sieve hopper 6, they slide downwards. For particles with a diameter smaller than the screening holes, a collection hopper can be set at the bottom of the device. After the particles are screened by the eccentric sieve hopper 6, they slide downwards from the grinding chamber 1 into the collection hopper to complete the collection of drug particles.

[0038] Inside the transfer bucket 8, the rotating rod 9 drives the auger blades 10 to rotate, thus completing the vertical transfer of unqualified particles. The rotating rod 9 simultaneously drives the first disc 12 and the protrusion 13 at its bottom to rotate. The second spring 4 supports the eccentric screen hopper 6, which remains stable in the grinding chamber 1, ensuring that the convex ball 16 and the protrusion 13 are always matched. At this time, after the powder passes through the grinding ring 36, particles of the correct volume pass through the eccentric screen hopper 6 and are discharged through the cross placement platform 14 at the bottom of the grinding chamber 1. When the first disc 12 rotates, the transfer bucket 8 and the eccentric screen hopper 6 will be affected and vibrate once when the protrusion 13 passes the convex ball 16. That is, during the process of the powder sliding down from the eccentric screen hopper 6 to the eccentric feed pipe 7, the eccentric screen hopper 6 will vibrate periodically, thus preventing the powder from getting stuck on the eccentric screen hopper 6 when sliding down, thereby solving the problem of easy screen clogging.

[0039] Example 3

[0040] The rotating rod 9 needs to rotate continuously during use to drive the auger blades 10 to transport powder. It will also periodically move up and down under the influence of the protrusions 13 and convex balls 16. To avoid excessive wear and damage to the device, please refer to [the relevant documentation]. Figure 4-10 Based on the first specific embodiment, straight rods 35 are uniformly fixedly connected to the surface of the grinding ring 36, and toothed rings 34 are fixedly connected between the straight rods 35. The toothed rings 34 are rotatably connected to the grinding chamber 1. A second motor 31 is fixedly connected to the surface of the grinding chamber 1. A round rod 32 is rotatably connected through the eccentric position of the grinding chamber 1. The output end of the first motor 18 is fixedly connected to the round rod 32. A gear 33 is fixedly connected to the end of the round rod 32. The gear 33 meshes with the toothed ring 34.

[0041] A guide bar 23 is fixedly connected inside the grinding chamber 1. The guide bar 23 is coaxially arranged with the grinding ring 36. A support ring 37 is fixedly connected to the grinding chamber 1. A support seat 38 is fixedly connected to the bottom surface of the support ring 37.

[0042] The operation process of this embodiment is as follows: Before use, lubricating oil is applied between the spline and the spline sleeve 20. The second motor 31 drives the round rod 32 to rotate, and the rotation of the round rod 32 drives the gear 33 to rotate. Since the gear 33 and the gear ring 34 mesh with each other, the gear ring 34 drives the straight rod 35 and the grinding ring 36 to rotate continuously during grinding, thereby grinding the drug particles that enter the grinding chamber 1. The first motor 18 drives the rotating shaft 19 and the spline sleeve 20 to rotate. Since the spline body 21 is set inside the spline sleeve 20, the spline body 21 and the rotating rod 9 follow the rotation of the spline sleeve 20. At this time, after the powder passes through the grinding ring 36, it is guided by the guide bar 23 and enters the eccentric sieve hopper 6. Particles of the appropriate size fall through the sieve holes. The bottom of the device collects particles that do not meet the size requirements. These particles slide downwards from the eccentric screen hopper 6 and enter the transfer barrel 8 through the eccentric feed pipe 7. The auger blades 10 then rotate to transfer the particles. After passing through the transfer barrel 8, the particles are discharged through the discharge pipe 11. This process of repeatedly grinding particles that do not meet the size requirements continues until the particles meet the size requirements of the screen holes. The eccentric screen hopper 6 can slide up and down along the grinding chamber 1. During the process of the particles sliding on the eccentric screen hopper 6, the eccentric screen hopper 6 will vibrate periodically to prevent the particles from getting stuck above it. During the vibration, the spline body 21 rotates and moves within the spline sleeve 20, preventing equipment damage and further improving the practicality of the device.

[0043] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A dispensing grinding device comprising a grinding chamber (1) in which a grinding ring (36) is rotatably connected, characterized in that: Also include the blade anti-adhesion assembly, the blade anti-adhesion assembly includes the transmission bucket (8), the transmission bucket (8) is arranged in the grinding chamber (1), the transmission bucket (8) is rotatably connected with the rotating rod (9), the rotating rod (9) is fixedly connected with the auger blade (10) on the side surface, the rotating rod (9) is fixedly connected with the lug plate (22) on the side surface, the lug plate (22) is symmetrically connected with two knock rods (24) on the side surface, the knock rod (24) is penetrated and slidably arranged on the auger blade (10), the knock rod (24) is uniformly fixedly connected with a plurality of rubber balls (25) on the side surface, the knock rod (24) is fixedly connected with the guide ball (28) on the end, the transmission bucket (8) is fixedly connected with the guide ring (29) on the bottom, the guide ring (29) is fixedly connected with the guide block (30), the guide ball (28) and the guide block (30) correspond.

2. A dispensing mill device according to claim 1, characterized in that The distance between the rubber ball (25) and the corresponding auger blade (10) is consistent.

3. A dispensing mill device according to claim 1, wherein The knock rod (24) is fixedly connected with the round plate (26) on the side surface, the round plate (26) and the lug plate (22) are fixedly connected with the first spring (27), and the transmission bucket (8) is fixedly connected with the powder guide assembly on the side surface.

4. A dispensing mill device according to claim 3, wherein The powder guide assembly includes an eccentric feeding pipe (7), the eccentric feeding pipe (7) is connected with the transmission bucket (8), the eccentric feeding pipe (7) is fixedly connected with the eccentric screening hopper (6), the eccentric screening hopper (6) is fixedly connected with the connecting ring (5), the connecting ring (5) and the grinding chamber (1) are slidably connected, the connecting ring (5) is uniformly fixedly connected with a plurality of sliding rods (3) on the side surface, the grinding chamber (1) is uniformly fixedly connected with a plurality of matching seats (2) on the side surface, the matching seat (2) and the corresponding sliding rod (3) are slidably connected, the matching seat (2) and the connecting ring (5) are fixedly connected with a plurality of second springs (4), and the transmission bucket (8) and the eccentric screening hopper (6) are fixedly connected.

5. A dispensing mill device according to claim 1, wherein The rotating rod (9) is fixedly connected with a sieve hopper anti-blocking assembly, the sieve hopper anti-blocking assembly includes a spline body (21), the spline body (21) is fixedly connected with one end of the rotating rod (9), the other end of the rotating rod (9) is fixedly connected with the first disc (12), the bottom of the first disc (12) is fixedly connected with the protrusion (13), the grinding chamber (1) is fixedly connected with the cross placement table (14), the second disc (15) is fixedly connected on the cross placement table (14), the convex ball (16) is fixedly connected on the surface of the second disc (15), and the convex ball (16) corresponds to the protrusion (13).

6. A dispensing mill device according to claim 5, wherein The driving assembly is fixedly connected to the grinding chamber (1), the driving assembly comprises a positioning seat (17), the positioning seat (17) is fixedly connected between the grinding chamber (1), the first motor (18) is fixedly connected to the surface of the positioning seat (17), the grinding chamber (1) is rotatably connected with a spline sleeve (20), the spline sleeve (20) is fixedly connected with a rotating shaft (19), the first motor (18) output is fixedly connected with the rotating shaft (19), the spline sleeve (20) is matched with a spline main body (21), the transmission barrel (8) is located at the center position of the grinding chamber (1), and the two discharge pipes (11) are symmetrically and continuously arranged on the side surface of the transmission barrel (8).

7. A dispensing mill device according to claim 6, characterised in that The straight rods (35) are uniformly and fixedly connected to the surface of the grinding ring (36), the tooth ring (34) is fixedly connected between the straight rods (35), the tooth ring (34) is rotatably connected between the grinding chamber (1), the second motor (31) is fixedly connected to the surface of the grinding chamber (1), the eccentric position of the grinding chamber (1) is rotatably connected with a round rod (32), the first motor (18) output is fixedly connected with the round rod (32), the round rod (32) is fixedly connected with a gear (33), and the gear (33) is engaged with the tooth ring (34).

8. A dispensing mill device according to claim 7, characterized in that The guiding strip (23) is fixedly connected in the grinding chamber (1), the guiding strip (23) is coaxially arranged with the grinding ring (36), the supporting ring (37) is fixedly connected to the grinding chamber (1), and the supporting seat (38) is fixedly connected to the bottom surface of the supporting ring (37).

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