Rotary tablet press
By designing the adjustment mechanism in the rotary tablet press and adjusting the position of the expansion spring using the synchronization ring and the insertion rod, the problem that the existing rotary tablet press cannot easily adjust the pressure of the roll, and the flexibility and production efficiency of the tablet press are improved.
Patent Information
- Application Number
- CN202421931910.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-08-12
AI Technical Summary
When the existing rotary tablet presses meet different production needs, they cannot easily adjust the pressure of the roll, resulting in low production efficiency and inconsistent tablet quality.
A rotary tablet press is designed, including an adjustment mechanism, which fixes the expansion spring in an appropriate position by selecting different sizes of synchronization rings and insertion rods to achieve flexible adjustment of the pressure of the roller.
It realizes simple and quick adjustment of the pressure roller, adapts to the pressing requirements of various materials, and improves production efficiency and tablet quality.
Smart Images

Figure CN223045255U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rotary tablet presses, and more specifically, it relates to a rotary tablet press. Background Art
[0002] At the current technical level, rotary tablet presses play an important role in pharmaceutical manufacturing and the production of other compression-molded products. However, such equipment faces a significant problem during use. First, due to design limitations, existing rotary tablet presses often cannot conveniently adjust the pressure of the pressure rollers when dealing with different production requirements. This means that when it is necessary to adjust the pressing force according to the characteristics of the material or production specifications, the operator often faces certain difficulties. This inconvenience not only reduces production efficiency but may also affect the quality and consistency of the tablets, thus having a negative impact on the overall use effect.
[0003] Furthermore, due to the deficiency of existing rotary tablet presses in adjusting the pressure of the pressure rollers, it limits the application ability of the equipment in diverse and complex production environments. In actual operation, different tablets or molded products may require different pressures to achieve the desired density and strength. If the pressure of the pressure rollers cannot be adjusted flexibly, it may result in over-pressing or under-pressing of some products, affecting the quality and efficacy of the products. Summary of the Utility Model
[0004] (I) Technical Problems to be Solved
[0005] Aiming at the problems existing in the prior art, the utility model provides a rotary tablet press to solve the technical problems mentioned in the background art.
[0006] (II) Technical Solutions
[0007] To achieve the above object, the utility model provides the following technical solution: A rotary tablet press includes a support frame installed on an external device. An adjustment mechanism is provided on the support frame. The adjustment mechanism includes a rotating mechanism, side plates, a transverse rod, pressure rollers, expansion springs, fixed sleeves, insertion rods, a synchronous ring, and a forming mechanism. The rotating mechanism is connected to the support frame in a mating manner. The side plates are installed on the support frame. The transverse rod is connected to the side plates in a mating manner. The pressure rollers are connected to the transverse rod. A plurality of expansion springs are provided, and the plurality of expansion springs are respectively installed inside the pressure rollers. A plurality of fixed sleeves are provided, and the plurality of fixed sleeves are respectively installed on the expansion springs. A plurality of insertion rods are provided, and the plurality of insertion rods are respectively installed on the synchronous ring, and the insertion rods are inserted into the fixed sleeves. The forming mechanism is installed on the support frame.
[0008] The present utility model is further configured such that the rotating mechanism includes a transmission rod and a top disk. The transmission rod is coaxially installed on the top disk and is rotatably connected to the support frame. The design of the rotating mechanism ensures the continuity of the rotary tablet pressing.
[0009] The present utility model is further configured such that a motor is provided on the support frame, a driven wheel is provided on the transmission rod, a belt is meshed on the driven wheel, and the belt is connected to the protruding end of the motor. The design of the motor ensures the continuity of rotation.
[0010] The present utility model is further configured such that an internal hole is provided on the top disk, a pressing block is slidably provided in the internal hole, a top wheel is rotatably provided on the pressing block, and the top wheel abuts against the pressing roller. The design of the internal hole ensures the continuity of the return stroke.
[0011] The present utility model is further configured such that a mounting sleeve is provided in the internal hole, a guide rod is slidably provided on the mounting sleeve, a synchronizing sleeve is provided on the guide rod, and the top wheel is rotatably connected to the synchronizing sleeve. The design of the guide rod ensures the limitation of the synchronizing sleeve.
[0012] The present utility model is further configured such that a plurality of mounting sleeves are provided, and a return spring is respectively provided on each mounting sleeve. The return spring is connected to the synchronizing sleeve.
[0013] The present utility model is further configured such that the forming mechanism includes a turntable and a forming disk. The turntable is installed on the transmission rod, and a plurality of forming disks are rotatably installed on the turntable. The pressing block is slidably connected to the forming disk. The design of the forming mechanism ensures the continuity of forming.
[0014] The present utility model is further configured such that a bottom disk is provided on the transmission rod, a receiving block is slidably provided on the bottom disk, a protruding block and a discharging block are provided on the support frame. The protruding block is installed below the pressing roller, and the receiving block is inserted into the forming disk. The design of the receiving block ensures the continuity of forming.
[0015] (III) Advantageous Effects
[0016] Compared with the prior art, the present utility model provides a rotary tablet press, which has the following advantageous effects:
[0017] 1. The design of the adjusting mechanism allows the operator to flexibly adjust the pressure of the pressing roller according to different tablet pressing requirements. By selecting synchronizing rings of different sizes and fixing the expansion spring in place with the insertion rod, the operator can easily change the pressure provided by the external expansion spring. This design makes the pressure adjustment of the pressing roller simple and fast, thus ensuring that the tablet press can adapt to the pressing requirements of various materials and improving the production efficiency and tablet pressing quality.
[0018] 2. The forming mechanism realizes the precise forming of tablets through the cooperation of the turntable and the forming disk. During the tablet pressing process, the pressing blocks and the receiving blocks at the upper and lower ends can apply pressure evenly, ensuring that the density and shape of the tablets meet the specified standards. The function of the return spring enables the pressing blocks to automatically return to their original positions when not under force, maintaining the continuous operation of the equipment and ensuring that the receiving blocks in the forming disk are always in the correct positions, facilitating the smooth discharge of the tablets.
[0019] 3. The rotating mechanism realizes the smooth operation of the rotary tablet press through the transmission of the motor and the belt. The cooperation of the transmission rod and the top disk enables the pressing blocks and the receiving blocks to rotate synchronously, applying pressure evenly and ensuring the stability of the tablet pressing process. In addition, the design of the rotating mechanism makes the equipment easy to operate and maintain, improving the overall reliability and service life of the equipment. Through this efficient rotating mechanism, the rotary tablet press can meet the needs of continuous large-scale production while maintaining the simplicity of operation and the high efficiency of production. Brief Description of the Drawings
[0020] Figure 1 It is a schematic diagram of the overall structure of a rotary tablet press in the present utility model;
[0021] Figure 2 It is an exploded structure diagram of the synchronous ring and the pressing roller in the present utility model;
[0022] Figure 3 It is an exploded structure diagram of the top disk and the pressing block in the present utility model;
[0023] Figure 4 It is a structural diagram of the forming disk in the present utility model;
[0024] Figure 5 It is a structural diagram of the rotating mechanism in the present utility model.
[0025] In the figure: 1. Support frame; 2. Side plate; 3. Horizontal rod; 4. Pressing roller; 5. Expansion spring; 6. Fixed sleeve; 7. Insertion rod; 8. Synchronous ring; 9. Transmission rod; 10. Top disk; 11. Motor; 12. Driven wheel; 13. Belt; 14. Internal hole; 15. Pressing block; 16. Top wheel; 17. Mounting sleeve; 18. Guide rod; 19. Synchronous sleeve; 20. Return spring; 21. Turntable; 22. Forming disk; 23. Bottom disk; 24. Receiving block; 25. Protruding block; 26. Discharge block. Detailed Description of the Preferred Embodiment
[0026] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the drawings and in conjunction with the embodiments.
[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs.
[0028] In the present utility model, in the absence of contrary description, the directions such as "upper, lower" are generally in relation to the directions shown in the drawings, or in relation to the vertical, perpendicular or gravitational directions; similarly, for the sake of easy understanding and description, "left, right" are generally in relation to the left and right shown in the drawings; "inner, outer" refer to the inner and outer of the contour of each component itself, but the above directional terms are not used to limit the present utility model.
[0029] Please refer to Figures 1-5 , a rotary tablet press, comprising a support frame 1, the support frame 1 is installed on an external device, an adjusting mechanism is arranged on the support frame 1, the adjusting mechanism includes a rotating mechanism, a side plate 2, a transverse rod 3, a pressing roller 4, an expansion spring 5, a fixing sleeve 6, an insertion rod 7, a synchronous ring 8 and a forming mechanism, the rotating mechanism is cooperatively connected to the support frame 1, the side plate 2 is installed on the support frame 1, the transverse rod 3 is cooperatively connected to the side plate 2, the pressing roller 4 is connected to the transverse rod 3, a plurality of expansion springs 5 are provided, and the plurality of expansion springs 5 are respectively installed in the pressing roller 4, a plurality of fixing sleeves 6 are provided, and the plurality of fixing sleeves 6 are respectively installed on the expansion springs 5, a plurality of insertion rods 7 are provided, and the plurality of insertion rods 7 are respectively installed on the synchronous ring 8, and the insertion rod 7 is inserted into the fixing sleeve 6, the forming mechanism is installed on the support frame 1, the rotating mechanism includes a transmission rod 9 and a top plate 10, the transmission rod 9 is coaxially installed on the top plate 10, and the transmission rod 9 is rotatably connected to the support frame 1, a motor 11 is provided on the support frame 1, a driven wheel 12 is provided on the transmission rod 9, a belt 13 is meshed on the driven wheel 12, the belt 13 is connected to the extending end of the motor 11, an internal hole 14 is formed on the top plate 10, a pressing block 15 is slidably arranged in the internal hole 14, a top wheel 16 is rotatably arranged on the pressing block 15, the top wheel 16 abuts against the pressing roller 4, an installation sleeve 17 is arranged in the internal hole 14, a guide rod 18 is slidably arranged on the installation sleeve 17, a synchronous sleeve 19 is arranged on the guide rod 18, the top wheel 16 is rotatably connected to the synchronous sleeve 19, a plurality of installation sleeves 17 are provided, and a return spring 20 is respectively arranged on each installation sleeve 17, the return spring 20 is connected to the synchronous sleeve 19, the forming mechanism includes a turntable 21 and a forming plate 22, the turntable 21 is installed on the transmission rod 9, a plurality of forming plates 22 are rotatably installed on the turntable 21, the pressing block 15 is slidably connected to the forming plate 22, a bottom plate 23 is provided on the transmission rod 9, a receiving block 24 is slidably arranged on the bottom plate 23, a raised block 25 and a discharging block 26 are provided on the support frame 1, the raised block 25 is installed below the pressing roller 4, and the receiving block 24 is inserted into the forming plate 22.
[0030] In this embodiment, when tableting is required, first, the motor 11 and the belt 13 drive the rotation of the transmission rod 9. Then, the tablets to be formed are placed in the forming disk 22 by an external device. Then, the rotation of the top disk 10 and the turntable 21 causes the pressing blocks 15 at the upper and lower ends and the receiving blocks 24 to press on the corresponding tablets respectively. At this time, since the receiving block 24 presses on the protruding block 25 and the top wheel 16 on the pressing block 15 also abuts against the pressing roller 4, the receiving block 24 and the pressing block 15 can press on the tablets respectively, thus completing the tableting process. Then, under the action of the return spring 20, it is ensured that the pressing block 15 always returns upward when not under force and the lower receiving block 24 is always slidably connected in the forming disk 22. When discharging is required, the receiving block 24 presses on the discharging block 26 to eject the tablets, and the tablets are taken away by an external device, thus completing the tableting process.
[0031] More specifically, when the pressing roller 4 and the receiving block 24 are pressed against each other and the pressure needs to be adjusted when tableting is completed in the forming block, first, synchronous rings 8 of different sizes are selected. Then, the insertion rod 7 is inserted into the fixed sleeve 6. The expansion spring 5 inside is fixed, and only the expansion spring 5 outside can provide pressure. Then, the size of the pressure can be changed, thus completing the adjustment process.
[0032] In summary, when the whole device is in use or operation: when tableting is required, first, the motor 11 and the belt 13 drive the rotation of the transmission rod 9. Then, the tablets to be formed are placed in the forming disk 22 by an external device. Then, the rotation of the top disk 10 and the turntable 21 causes the pressing blocks 15 at the upper and lower ends and the receiving blocks 24 to press on the corresponding tablets respectively. At this time, since the receiving block 24 presses on the protruding block 25 and the top wheel 16 on the pressing block 15 also abuts against the pressing roller 4, the receiving block 24 and the pressing block 15 can press on the tablets respectively, thus completing the tableting process. Then, under the action of the return spring 20, it is ensured that the pressing block 15 always returns upward when not under force and the lower receiving block 24 is always slidably connected in the forming disk 22. When discharging is required, the receiving block 24 presses on the discharging block 26 to eject the tablets, and the tablets are taken away by an external device, thus completing the tableting process. When the pressing roller 4 and the receiving block 24 are pressed against each other and the pressure needs to be adjusted when tableting is completed in the forming block, first, synchronous rings 8 of different sizes are selected. Then, the insertion rod 7 is inserted into the fixed sleeve 6. The expansion spring 5 inside is fixed, and only the expansion spring 5 outside can provide pressure. Then, the size of the pressure can be changed, thus completing the adjustment process.
[0033] Among all the solutions mentioned above, for those involving the connection between two components, welding, connection with bolts and nuts, connection with bolts or screws, or other well-known connection methods can be selected according to the actual situation, which will not be elaborated one by one here. Whenever the above text involves fixed connection, welding is preferably considered. Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A rotary tablet press, comprising a support frame (1), characterized in that: The support frame (1) is installed on the external equipment. The support frame (1) is provided with an adjustment mechanism. The adjustment mechanism comprises a rotating mechanism, a side plate (2), a transverse rod (3), a pressure roller (4), an expansion spring (5), a fixed sleeve (6), an insertion rod (7), a synchronous ring (8) and a forming mechanism. The rotating mechanism is connected to the support frame (1) in a coordinated manner. The side plate (2) is installed on the support frame (1). The transverse rod (3) is connected to the side plate (2). The pressure roller (4) is connected to the transverse rod (3). A plurality of expansion springs (5) are provided, and the plurality of expansion springs (5) are respectively installed in the pressure roller (4). A plurality of fixing sleeves (6) are provided, and the plurality of fixing sleeves (6) are respectively installed on the expansion spring (5). A plurality of insertion rods (7) are provided, and the plurality of insertion rods (7) are respectively installed on the synchronous ring (8). The insertion rod (7) is inserted into the fixing sleeve (6). The forming mechanism is installed on the support frame (1).
2. A rotary tablet press according to claim 1, characterized in that: The rotating mechanism comprises a transmission rod (9) and a top plate (10); the transmission rod (9) is coaxially mounted on the top plate (10), and the transmission rod (9) is rotatably connected to the support frame (1).
3. A rotary tablet press according to claim 2, characterized in that: The support frame (1) is provided with a motor (11), the transmission rod (9) is provided with a driven wheel (12), the driven wheel (12) is meshed with a belt (13), and the belt (13) is connected to the protruding end of the motor (11).
4. A rotary tablet press according to claim 3, characterized in that: The top plate (10) is provided with an internal hole (14), a pressure block (15) is slidably provided in the internal hole (14), a top wheel (16) is rotatably provided on the pressure block (15), and the top wheel (16) contacts the pressure roller (4).
5. A rotary tablet press according to claim 4, characterized in that: A mounting sleeve (17) is arranged in the inner hole (14), a guide rod (18) is slidably arranged on the mounting sleeve (17), a synchronous sleeve (19) is arranged on the guide rod (18), and the top wheel (16) is rotatably connected to the synchronous sleeve (19).
6. A rotary tablet press according to claim 5, characterized in that: A plurality of the mounting sleeves (17) are provided, and each mounting sleeve (17) is provided with a return spring (20), and the return spring (20) is connected to the synchronous sleeve (19).
7. A rotary tablet press according to claim 1, characterized in that: The molding mechanism comprises a rotating disk (21) and a molding disk (22); the rotating disk (21) is mounted on a transmission rod (9); a plurality of molding disks (22) are rotatably mounted on the rotating disk (21); and a pressing block (15) is slidably connected to the molding disk (22).
8. A rotary tablet press according to claim 7, characterized in that: The transmission rod (9) is provided with a bottom plate (23), a receiving block (24) is slidably provided on the bottom plate (23), a protruding block (25) and a discharging block (26) are provided on the support frame (1), the protruding block (25) is installed below the pressure roller (4), and the receiving block (24) is inserted into the forming plate (22).