A rotary tablet press discharge mechanism

Abstract

This utility model discloses a discharge mechanism for a rotary tablet press, comprising a guide box and a screening box. The upper end of the guide box is connected to the discharge position of the tablet press. Multiple feeding guide plates are staggered within the guide box. A vibrating plate is installed within the screening box, with a vibration component at the end of the vibrating plate. A crushing guide plate is located below the vibrating plate, and a crushing box is located below the screening box. A crushing roller is installed within the crushing box. The discharge end of the crushing guide plate is located at the midpoint between the two crushing rollers, and a brush is provided on the outer side of the crushing roller. This utility model's discharge mechanism, with its guide box, screening box, and crushing box, can effectively screen the tablets produced by the tablet press. Unqualified tablets are crushed and recycled, effectively guiding, screening, and classifying the tablets produced by the tablet press.

Description

Technical Field

[0001] This utility model belongs to the technical field of rotary tablet presses, specifically, it relates to a discharge mechanism for a rotary tablet press. Background Technology

[0002] Rotary tablet presses are used to compress various granular raw materials into round and irregularly shaped tablets. They are essential equipment suitable for mass production. The structure is a dual-pressure type, with two sets of feeding devices and two sets of rollers. The speed of the turntable, the filling depth of the material, and the tablet thickness are adjustable during compression. The machine's mechanical buffer device prevents damage to components due to overload. Due to its excellent performance and simple operation, it is widely used in many fields. The discharge mechanism is an essential working mechanism in high-speed rotary tablet presses. However, most existing discharge mechanisms for high-speed rotary tablet presses on the market are simply fixed horizontal discharge channels extending directly from the discharge port. Due to the high-speed operation of high-speed rotary tablet presses, material easily accumulates in the discharge channel, thus affecting the overall operation progress of the tablet press. Application No. CN202022953633.8 discloses a uniform discharge mechanism for a high-speed rotary tablet press. The mechanism utilizes a scraper and material distribution channels on the top surfaces of both guide seats 1 and 2 to ensure the material is evenly distributed onto the conveyor belt, guaranteeing uniform material transport. While this device provides excellent material guiding and discharge performance, during operation, insufficient pressure, excessive pressure, or uneven pressing can lead to incomplete tablet filling, damage, or cracking, resulting in the discharge containing broken particles and other defective products.

[0003] In view of this, this utility model is hereby proposed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a discharge mechanism for a rotary tablet press. The basic concept of the technical solution adopted by this utility model to solve the above-mentioned technical problem is as follows: A discharge mechanism for a rotary tablet press includes a guide box and a screening box. The upper end of the guide box is connected to the discharge position of the tablet press. Multiple feeding guide plates are staggered inside the guide box. A vibrating plate is installed inside the screening box, and a vibration component is installed at the end of the vibrating plate. A crushing guide plate is installed below the vibrating plate, and a crushing box is installed below the screening box. A crushing roller is installed inside the crushing box. The discharge end of the crushing guide plate is located at the middle mating position between the two crushing rollers. A brush is installed on the outer side of the crushing roller. A cleaning box is fixedly installed on the outer wall of the crushing box outside the brush. A shrinkage chamber is installed inside the cleaning box. A telescopic rod is slidably connected inside the shrinkage chamber. The outer end of the telescopic rod is fixedly connected to the brush. A return spring is installed on the inner end of the telescopic rod. A guide frame is installed inside the shrinkage chamber. A limit end is provided at the mating end of the telescopic rod and the shrinkage chamber. A guide rod is provided on the limit end. The telescopic rod can be adjusted to extend and retract relative to the shrinkage chamber.

[0005] As a further embodiment of this utility model: the guide frame is provided with a through hole, the guide rod passes through the through hole, and the reset spring is disposed between the connecting plate between the guide frames and the telescopic rod, so that the brush and the crushing roller can cooperate effectively.

[0006] As a further embodiment of this utility model: a connecting end plate is provided at the outer end of the cleaning box, and a maintenance plate is provided on the outer side of the connecting end plate. The maintenance plate and the connecting end plate are fixedly connected by bolts and nuts. A partition plate is provided between the inner side of the maintenance plate and the end face of the shrinkage chamber. The partition plate has different thickness specifications.

[0007] As a further improvement of this utility model: the inspection plate, the partition plate and the shrinkage chamber are fixedly connected by screws, the number of screws is more than two, and the specifications of the brush are adapted to the crushing roller, so as to have an effective cleaning effect on the crushing roller.

[0008] As a further improvement of this utility model: the two adjacent feeding guide plates are inclined and staggered, the inclination direction of the lowermost feeding guide plate is opposite to the inclination direction of the vibrating plate, the feeding guide plate has a strip groove on the feeding guide side, and the feeding guide plate has side baffles on both sides, so that the feeding guide plate has a good feeding effect.

[0009] As a further embodiment of this utility model: a transmission box is provided on the outer side of the crushing box at the end corresponding to the crushing roller, a crushing motor is provided on the outer side of the transmission box, a discharge window is provided at the inclined lower end of the vibrating plate of the screening box, a tablet discharge port is provided on the outer side of the discharge window, a powder discharge port is provided at the bottom of the crushing box, and the tablet discharge port facilitates the discharge of tablets.

[0010] As a further embodiment of this utility model: the vibration assembly includes a matching slide rod and a top wheel disposed on the bottom surface of the vibration plate. A matching slide groove is provided on the support platform below the matching slide rod, and a matching spring is provided on the outer side of the matching slide rod. A cam is provided below the top wheel, and a push motor is provided for the cam to provide power for the rotation of the cam.

[0011] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art.

[0012] The discharge mechanism of this utility model is equipped with a guide box, a screening box and a crushing box, which can effectively screen the tablets produced by the tablet press, crush the unqualified products, and recycle them for reuse. It effectively guides, screens and classifies the tablets produced by the tablet press.

[0013] This invention features a brush on the outer side of the crushing roller, with a telescopic structure included. The telescopic structure comprises a telescopic rod, a contraction chamber, a return spring, a limiting end, a guide rod, and a guide frame, effectively improving the stability of the telescopic structure during the brush cleaning process.

[0014] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a front sectional view of the present invention; Figure 3 This is a schematic diagram of the feeding guide plate of this utility model; Figure 4 This is a partial enlarged view of point A of this utility model; Figure 5 This is a partial enlarged view of section B of this utility model.

[0016] In the diagram: 1. Tableting machine; 2. Feed box; 3. Screening box; 4. Crushing box; 5. Transmission box; 6. Crushing motor; 7. Cleaning box; 8. Tablet outlet; 9. Crushing roller; 10. Powder outlet; 11. Crushing guide plate; 12. Vibrating plate; 13. Feeding guide plate; 14. Pushing motor; 15. Cam; 16. Top wheel; 17. Matching slide groove; 18. Matching slide rod; 19. Matching spring; 20. Discharge window; 21. Strip groove; 22. Side baffle; 23. Return spring; 24. Inspection plate; 25. Shrinkage chamber; 26. Telescopic rod; 27. Brush; 28. Limiting end; 29. ​​Guide rod; 30. Guide frame.

[0017] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0019] like Figures 1 to 5 As shown, a discharge mechanism for a rotary tablet press includes a guide box 2 and a screening box 3. The upper end of the guide box 2 is connected to the discharge position of the tablet press 1. Multiple feeding guide plates 13 are staggered inside the guide box 2. A vibrating plate 12 is installed inside the screening box 3, with a vibrating component at one end of the vibrating plate 12. A crushing guide plate 11 is installed below the vibrating plate 12. A crushing box 4 is installed below the screening box 3, and crushing rollers 9 are installed inside the crushing box 4. The discharge end of the crushing guide plate 11 is located at the intermediate mating position between the two crushing rollers 9. A brush 27 is provided on the outside. A cleaning box 7 is fixedly installed on the outer wall of the crushing box 4 outside the brush 27. A shrinkage chamber 25 is provided inside the cleaning box 7. A telescopic rod 26 is slidably connected inside the shrinkage chamber 25. The outer end of the telescopic rod 26 is fixedly connected to the brush 27. A return spring 23 is provided on the inner end of the telescopic rod 26. A guide frame 30 is provided inside the shrinkage chamber 25. A limit end 28 is provided at the mating end of the telescopic rod 26 and the shrinkage chamber 25. A guide rod 29 is provided on the limit end 28. The telescopic rod 26 can be adjusted to extend and retract relative to the shrinkage chamber 25.

[0020] The guide frame 30 is provided with a through hole, through which the guide rod 29 passes. The return spring 23 is provided between the connecting plate and the telescopic rod 26 between the guide frames 30 so that the brush 27 and the crushing roller 9 can cooperate effectively.

[0021] A connecting end plate is provided on the outer end of the cleaning box 7, and an inspection plate 24 is provided on the outer side of the connecting end plate. The inspection plate 24 and the connecting end plate are fixedly connected by bolts and nuts. A partition plate is provided between the inner side of the inspection plate 24 and the end face of the shrinkage chamber 25. The partition plate has different thickness specifications.

[0022] The inspection plate 24, the partition plate and the shrinkage chamber 25 are fixedly connected by screws, with more than two screws. The specifications of the brush 27 are compatible with the crushing roller 9, and it has an effective cleaning effect on the crushing roller 9.

[0023] The two adjacent feeding guide plates 13 are tilted and staggered. The tilt direction of the lower feeding guide plate 13 is opposite to that of the vibrating plate 12. A strip groove 21 is provided on the feeding guide plate 13, and side baffles 22 are provided on both sides of the feeding guide plate 13, so that the feeding guide plate 13 has a good feeding effect.

[0024] A transmission box 5 is provided on the outer side of the crushing box 4 at the end corresponding to the crushing roller 9. A crushing motor 6 is provided on the outer side of the transmission box 5. A discharge window 20 is provided at the lower inclined end of the vibrating plate 12 of the screening box 3. A tablet discharge port 8 is provided on the outer side of the discharge window 20. A powder discharge port 10 is provided at the bottom of the crushing box 4. The tablet discharge port 8 facilitates the discharge of tablets.

[0025] The vibration assembly includes a sliding rod 18 and a top wheel 16 disposed on the bottom surface of the vibration plate 12. A sliding groove 17 is disposed on the support platform below the sliding rod 18. A sliding spring 19 is disposed on the outer side of the sliding rod 18. A cam 15 is disposed below the top wheel 16. A push motor 14 is disposed on the cam 15 to provide power for the rotation of the cam 15.

[0026] The working principle of this utility model is as follows: the tablets of the tablet press 1 fall into the guide box 2. The feeding guide plate 13 set in the guide box 2 effectively guides the tablets. The feeding guide plate 13 is provided with a strip groove 21. The setting of multiple feeding guide plates 13 can disperse tablets that are not full and are relatively loose due to insufficient pressure. After being guided by the feeding guide plate 13, the tablets fall onto the vibrating plate 12. The vibrating plate 12 has a mesh plate structure and is used to effectively screen the tablets. The qualified tablets are discharged from the discharge window 20 and the tablet discharge port 8, which is convenient for subsequent guiding and packaging. The unqualified particles and debris screened by the vibrating plate 12 fall between the two crushing rollers 9 through the crushing guide plate 11. The crushing rollers 9 further crush the debris, which is convenient for recycling and reuse. A brush 27 is provided on the outer side of the crushing roller 9, overlapping the surface of the crushing roller 9. The brush 27 facilitates cleaning of the rotating crushing roller 9. The inspection plate 24 is fixedly connected to the cleaning box 7 by bolts and nuts, and the inspection plate 24 is fixed to the shrink box by screws. A partition plate is provided between the inner side of the inspection plate 24 and the end face of the shrink chamber 25. The partition plate has different thicknesses to facilitate adjustment of the relative position of the shrink chamber 25 and the inspection plate 24 to accommodate return springs 23 with different elastic moduli. The inspection plate 24 also facilitates the removal of the brush 27 from the inside of the equipment for cleaning. The present invention features a reasonable structural design, convenient installation and use. Its discharge mechanism includes a guide box 2, a screening box 3, and a crushing box 4, which can effectively screen the tablets produced by the tablet press 1. Unqualified products are crushed and recycled, effectively guiding, screening, and classifying the tablets produced by the tablet press 1. A brush 27 is provided on the outside of the crushing roller 9, and the brush 27 is equipped with a telescopic structure. This telescopic structure includes a telescopic rod 26, a contraction chamber 25, a return spring 23, a limiting end 28, a guide rod 29, and a guide frame 30, effectively improving the stability of the telescopic structure during the brush 27 cleaning process.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A discharge mechanism for a rotary tablet press, comprising a material guiding box (2), a strip-shaped slot (21) and a screening box (3), characterized in that, The upper end of the feed box (2) is connected to the discharge position of the tablet press (1). Multiple feed guide plates (13) are staggered inside the feed box (2). A vibrating plate (12) is installed inside the screening box (3). A vibration component is installed at the end of the vibrating plate (12). A crushing guide plate (11) is installed below the vibrating plate (12). A crushing box (4) is installed below the screening box (3). A crushing roller (9) is installed inside the crushing box (4). The discharge end of the crushing guide plate (11) is located at the middle mating position of the two crushing rollers (9). A brush (2) is installed on the outside of the crushing roller (9). 7) A cleaning box (7) is fixedly installed on the outer wall of the crushing box (4) outside the brush (27). A shrinkage chamber (25) is installed inside the cleaning box (7). A telescopic rod (26) is slidably connected inside the shrinkage chamber (25). The outer end of the telescopic rod (26) is fixedly connected to the brush (27). A return spring (23) is installed on the inner end of the telescopic rod (26). A guide frame (30) is installed inside the shrinkage chamber (25). A limit end (28) is installed at the mating end of the telescopic rod (26) and the shrinkage chamber (25). A guide rod (29) is installed on the limit end (28).

2. The discharge mechanism for a rotary tablet press according to claim 1, wherein The guide frame (30) is provided with a through hole, the guide rod (29) passes through the through hole, and the reset spring (23) is provided between the connecting plate between the guide frames (30) and the telescopic rod (26).

3. The discharge mechanism for a rotary tablet press according to claim 2, wherein The outer end of the cleaning box (7) is provided with a connecting end plate, and the outer side of the connecting end plate is provided with a maintenance plate (24). The maintenance plate (24) and the connecting end plate are fixedly connected by bolts and nuts. A partition plate is provided between the inner side of the maintenance plate (24) and the end face of the shrinkage chamber (25).

4. The discharge mechanism for a rotary tablet press according to claim 3, wherein The inspection plate (24), the partition plate and the shrinkage chamber (25) are fixedly connected by screws, and the number of screws is more than two. The specifications of the brush (27) are compatible with the crushing roller (9).

5. A discharge mechanism for a rotary tablet press according to claim 4, characterized in that The two adjacent feeding guides (13) are tilted and staggered. The tilt direction of the lowermost feeding guide (13) is opposite to that of the vibration plate (12). The feeding guide (13) has a strip groove (21) on its guiding side and side baffles (22) on both sides of the feeding guide (13).

6. A discharge mechanism for a rotary tablet press according to claim 5, characterized in that A transmission box (5) is provided at the end position corresponding to the crushing roller (9) on the outside of the crushing box (4). A crushing motor (6) is provided on the outside of the transmission box (5). A discharge window (20) is provided at the lower end of the vibrating plate (12) of the screening box (3). A tablet discharge port (8) is provided on the outside of the discharge window (20). A powder discharge port (10) is provided below the crushing box (4).

7. A discharge mechanism for a rotary tablet press according to claim 6, characterized in that The vibration assembly includes a matching slide rod (18) and a top wheel (16) disposed on the bottom surface of the vibration plate (12). A matching slide groove (17) is provided on the support platform below the matching slide rod (18). A matching spring (19) is provided on the outside of the matching slide rod (18). A cam (15) is provided below the top wheel (16). A push motor (14) is provided in conjunction with the cam (15).

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