Rotary tablet press

Abstract

The utility model discloses a rotary tablet press, which relates to the technical field of pharmaceutical equipment and comprises a case, a motor is fixedly mounted at the bottom in the case, the motor is electrically connected with a master controller in the case through a connecting wire, a tablet pressing mechanism is arranged at the top of the case, and a distributing mechanism is fixedly mounted on the case above the tablet pressing mechanism. The tabletting mechanism comprises a spreading mechanism, a pressure wheel and a first turntable; second turntables are fixedly mounted at the top and the bottom of the first turntable. The punch is arranged to be of a folding structure with the upper rod body and the lower rod body, the punch can be rapidly disassembled and assembled in the second rotating disc conveniently, the pressure-bearing block capable of horizontally moving can be matched with the ejector rod, the ejector block automatically extrudes and displaces the pressure-bearing block when the upper rod body and the lower rod body are adjusted to be in a vertical posture, and then the whole punch can be limited in the mounting hole of the second rotating disc; and meanwhile, structural fixation of the upper rod body and the lower rod body is achieved through the limiting sleeve, and the disassembly, assembly and maintenance efficiency of the punch is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pharmaceutical equipment, in particular to a rotary tablet press. Background Art

[0002] A rotary tablet press is a pharmaceutical equipment that is mainly used to press granular raw materials into tablets. The rotary tablet press realizes a continuous and automatic tablet pressing process through the turntable design. Punches are evenly distributed around the turntable. When the turntable rotates, the upper and lower punches and the middle die rotate continuously around the axis and move vertically along the upper and lower tracks to complete the process steps of filling, tableting, and tablet discharge.

[0003] The punches of the existing rotary tablet press are installed through the turntable, so as to achieve displacement in coordination with the track and the pressure wheel, and the powder can be tableted by the two punches and the die. However, since the punches of the rotary tablet press are installed through the through holes of the turntable, although the stability and accuracy of the tableting process are ensured, the punches are often deeply embedded in the turntable. The space is limited during disassembly and assembly, and it is difficult to use large tools or perform quick operations, which increases the complexity and time cost of maintenance and reduces the maintenance efficiency of the punches. Utility Model Content

[0004] The purpose of the utility model is to provide a rotary tablet press, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A tablet rotary tablet press comprises a chassis, a motor is fixedly mounted on the bottom of the chassis, the motor is electrically connected to the main controller in the chassis through a connecting line, a tablet pressing mechanism is provided on the top of the chassis, a material distribution mechanism is fixedly mounted on the chassis above the tablet pressing mechanism, the tablet pressing mechanism comprises a material spreading mechanism, a pressure wheel and a first turntable, a second turntable is fixedly mounted on the top and bottom of the first turntable, and the center positions of the first turntable and the second turntable are rotatably mounted on the chassis through a rotating shaft, and the lower end of the rotating shaft is fixedly connected to the output end of the gear box at the top of the chassis, and the material spreading mechanism is fixedly mounted On the chassis located on one side of the first turntable, two guide frames are fixedly installed on the chassis located below the first turntable, and two guide frames are also fixedly installed on the bottom of the dividing mechanism located above the second turntable, and the dividing mechanism located between two of the guide frames is fixedly installed with multiple pressure wheels, and the chassis located between the other two guide frames is also fixedly installed with multiple pressure wheels, and multiple punches are movably installed in the two second turntables respectively, and the punches include an upper rod body and a lower rod body, and multiple pressure blocks are movably installed on the top of the upper rod body, and the upper rod body and the lower rod body are movably connected to each other.

[0007] Preferably, a plurality of tablet pressing dies are fixedly installed in the first turntable.

[0008] Preferably, a slide groove is provided on the top of the upper rod body, the transverse cross-section of the slide groove is cross-shaped, countersunk holes are provided on the four inner surfaces of the slide groove, connecting screws are inserted into the countersunk holes, a connecting block is fixedly installed on the bottom of the upper rod body, a first screw groove is provided on the outer side of the upper rod body, a through-type socket is provided in the upper rod body and the connecting block, a top rod is inserted into the socket, and a cross-shaped slide groove is provided on the top of the upper rod body to provide installation and displacement conditions for the four pressure blocks.

[0009] Preferably, a slider is fixedly installed on one side of the bottom of the pressure block, one side of the slider has a slope, and the other side of the slider is provided with a second screw groove. The pressure block is placed on the top of the upper rod body, the slider is inserted and installed in the slide groove, and one side of the connecting screw is threadedly connected to the second screw groove, and the connecting screw located between the slider and one side in the slide groove is also provided with a compression spring.

[0010] Preferably, a top block is fixedly installed on the top of the push rod. By cooperating with the lower rod body through the push rod and the top block, multiple pressure blocks can be synchronously squeezed and moved outward when the upper rod body and the lower rod body maintain a vertical posture, so that the upper rod body and the lower rod body can be limited and installed in the second turntable through four pressure blocks.

[0011] Preferably, a connecting groove is provided on the top of the lower rod body, a pin is rotatably installed in the connecting groove, the lower rod body is rotatably installed on the connecting block through the connecting groove on the top, and the pin located in the connecting groove is also inserted into the through hole in the connecting block.

[0012] Preferably, a limiting sleeve is installed on the outside of the lower rod body, and the upper rod body and the lower rod body are arranged into a foldable structure, which facilitates the rapid disassembly and assembly of the punch composed of the upper rod body and the lower rod body in the second turntable, thereby improving the maintenance efficiency of the equipment.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The rotary tablet press described in the utility model arranges the punch into a foldable structure of an upper rod body and a lower rod body, which can facilitate the quick disassembly and assembly of the punch in the second turntable, and the horizontally displaceable pressure block can cooperate with the push rod and the push block to automatically squeeze and displace the pressure block when the upper rod body and the lower rod body are adjusted to a vertical posture, so that the entire punch can be limited in the installation hole of the second turntable. At the same time, the structural fixation of the upper rod body and the lower rod body is achieved with the help of a limiting sleeve, thereby improving the efficiency of disassembly and maintenance of the punch. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 for Figure 2 Enlarged view of point A in the middle;

[0017] Figure 3 This is a schematic diagram of the punch in the first state of the utility model;

[0018] Figure 4 This is a schematic diagram of the punch in the second state of the present invention;

[0019] Figure 5 This is a cross-sectional view of the punch of the present utility model;

[0020] Figure 6 This is a schematic structural diagram of the pressure block of the utility model;

[0021] Figure 7 This is a schematic diagram of the disassembly of the lower rod body and the limiting sleeve structure of the utility model.

[0022] In the figure: 1. Chassis; 2. Motor; 3. Tablet pressing mechanism; 4. Material spreading mechanism; 5. Material dividing mechanism; 6. Guide frame; 7. Pressure wheel; 8. First turntable; 9. Tablet pressing die; 10. Second turntable; 11. Punch; 12. Upper rod; 13. Pressure block; 14. Lower rod; 15. Slide; 16. Countersunk hole; 17. Socket; 18. Ejector rod; 19. First screw groove; 20. Connecting block; 21. Ejector block; 22. Slider; 23. Second screw groove; 24. Connecting screw; 25. Compression spring; 26. Connecting groove; 27. Pin; 28. Limiting sleeve. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] like Figure 1-Figure 7As shown, the utility model provides a rotary tablet press, including a chassis 1, a motor 2 is fixedly installed at the bottom of the chassis 1, the motor 2 is electrically connected to the main controller in the chassis 1 through a connecting line, a tablet pressing mechanism 3 is provided on the top of the chassis 1, and a material distribution mechanism 5 is fixedly installed on the chassis 1 above the tablet pressing mechanism 3. The tablet pressing mechanism 3 includes a spreading mechanism 4, a pressure wheel 7 and a first turntable 8. The second turntable 10 is fixedly installed on the top and bottom of the first turntable 8, and the center positions of the first turntable 8 and the second turntable 10 are rotatably installed on the chassis 1 through a rotating shaft, and the lower end of the rotating shaft is fixedly connected to the output end of the gear box at the top of the chassis 1, and the spreading mechanism 4 is fixedly installed On the chassis 1 located on one side of the first turntable 8, two guide frames 6 are fixedly installed on the chassis 1 located below the first turntable 8, and two guide frames 6 are also fixedly installed at the bottom of the dividing mechanism 5 located at the second turntable 10 above, and the dividing mechanism 5 located between two of the guide frames 6 is fixedly installed with multiple pressure wheels 7, and the chassis 1 located between the other two guide frames 6 is also fixedly installed with multiple pressure wheels 7, and multiple punches 11 are movably installed in the two second turntables 10 respectively, and the punches 11 include an upper rod body 12 and a lower rod body 14, and multiple pressure blocks 13 are movably installed on the top of the upper rod body 12, and the upper rod body 12 and the lower rod body 14 are movably connected to each other.

[0025] like Figure 2 As shown, a plurality of tablet pressing dies 9 are fixedly installed in the first turntable 8;

[0026] like Figure 2-Figure 6 As shown, a slide groove 15 is provided on the top of the upper rod body 12, and the transverse section of the slide groove 15 is cross-shaped. Countersunk holes 16 are provided on the four inner surfaces of the slide groove 15, and connecting screws 24 are installed through the countersunk holes 16. A connecting block 20 is fixedly installed on the bottom of the upper rod body 12, and a first screw groove 19 is provided on the outer side of the upper rod body 12. A through-type socket 17 is provided in the upper rod body 12 and the connecting block 20, and a top rod 18 is installed through the socket 17. A cross-shaped slide groove 15 is provided on the top of the upper rod body 12 to provide installation and displacement conditions for the four pressure blocks 13. A slider 22 is fixedly installed on one side of the bottom of the pressure block 13, and one side of the slider 22 has a slope. A second screw groove 23 is provided on the other side. The pressure block 13 is placed on the top of the upper rod 12. The slider 22 is inserted into the slide groove 15. One side of the connecting screw 24 is threadedly connected to the second screw groove 23. The connecting screw 24 between the slider 22 and one side of the slide groove 15 is also equipped with a compression spring 25. A top block 21 is fixedly installed on the top of the push rod 18. The push rod 18 and the top block 21 cooperate with the lower rod 14 to synchronously squeeze and move the multiple pressure blocks 13 outward when the upper rod 12 and the lower rod 14 maintain a vertical posture. Therefore, the upper rod 12 and the lower rod 14 can be fixedly installed in the second turntable 10 through the four pressure blocks 13.

[0027] like Figure 2-Figure 7As shown, a connecting groove 26 is provided on the top of the lower rod body 14, and a pin shaft 27 is rotatably installed in the connecting groove 26. The lower rod body 14 is rotatably installed on the connecting block 20 through the connecting groove 26 on the top, and the pin shaft 27 located in the connecting groove 26 is also inserted and installed in the through hole in the connecting block 20. A limiting sleeve 28 is inserted and installed on the outside of the lower rod body 14, and the upper rod body 12 and the lower rod body 14 are set into a foldable structure, which facilitates the rapid disassembly and assembly of the punch 11 composed of the upper rod body 12 and the lower rod body 14 in the second turntable 10, which is beneficial to improving the maintenance efficiency of the equipment.

[0028] It should be noted that the present invention is a rotary tablet press for tablets. When installing the punch 11, it is only necessary to fold the upper rod 12 and the lower rod 14 of the punch 11 into an L-shaped structure. Then, the lower rod 14 can be held by hand to insert the top of the upper rod 12 from the side of the two second turntables 10 close to the first turntable 8 into the mounting hole of the second turntable 10. When the top of the upper rod 12 is inserted from one end of the mounting hole in the second turntable 10 to the other end, the lower rod 14 can be rotated on the connecting block 20 with the limiting sleeve 28 in the connecting groove 26 as the axis, so that the upper rod 12 and the lower rod 14 maintain a vertical posture. At the same time, when the lower rod 14 rotates, the bottom of the connecting groove 26 squeezes the ejector rod 18 upward, so that the ejector rod 18 is inserted into the socket 17 moves upward, and makes the push rod 18 drive the push block 21 to move between the sliders 22 at the bottom of the four pressure blocks 13, so that the spherical surface on the top of the push block 21 and the slope on one side of the four sliders 22 make the push block 21 able to squeeze the slider 22 to one side and drive the connecting screw 24 to move in the countersunk hole 16. At the same time, the slider 22 compresses the compression spring 25 on the outer side of the connecting screw 24 to one side of the slide groove 15, thereby making the outer diameter of the four slide grooves 15 larger than the diameter of the mounting hole in the second turntable 10, so that the entire punch 11 can be limited in the mounting hole of the second turntable 10. Subsequently, the limiting sleeve 28 is screwed upward into the first screw groove 19 on the outer side of the upper rod body 12, so that the structural posture of the upper rod body 12 and the lower rod body 14 can be fixed;

[0029] When the medicinal powder is tableted, the medicinal powder enters the dividing mechanism 5 through an external conveying device, thereby allowing the medicinal powder to enter the spreading mechanism 4 through the dividing mechanism 5, and the medicinal powder is spread into the corresponding tableting mold 9 through the spreading mechanism 4. Then, the motor 2 drives the first turntable 8 and the second turntable 10 to rotate synchronously, and then cooperates with the pressure wheel 7 and multiple guide frames 6 to realize the cyclic lifting and lowering of multiple punches 11, so that one end of the two punches 11 in the same row can be respectively inserted into the tableting mold 9 to extrude the medicinal powder, thereby completing the tableting process of the medicinal powder, and the punch 11 in the second turntable 10 below is pushed up by the corresponding guide frame 6, and the medicine can be intercepted and discharged through the unloading mechanism on the top side of the chassis 1.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A rotary tablet press, characterized in that: The invention comprises a chassis (1), wherein a motor (2) is fixedly mounted on the bottom of the chassis (1), and the motor (2) is electrically connected to a main controller in the chassis (1) via a connecting line; a tablet pressing mechanism (3) is provided on the top of the chassis (1); a material distribution mechanism (5) is fixedly mounted on the chassis (1) above the tablet pressing mechanism (3); the tablet pressing mechanism (3) comprises a material spreading mechanism (4), a pressure wheel (7) and a first turntable (8); a second turntable (10) is fixedly mounted on the top and bottom of the first turntable (8), and the center positions of the first turntable (8) and the second turntable (10) are rotatably mounted on the chassis (1) via a rotating shaft, and The lower end of the rotating shaft is fixedly connected to the output end of the gear box at the top of the chassis (1), and the material spreading mechanism (4) is fixedly installed on the chassis (1) located on one side of the first turntable (8). Two guide frames (6) are fixedly installed on the chassis (1) located below the first turntable (8), and two guide frames (6) are also fixedly installed on the bottom of the material spreading mechanism (5) located above the second turntable (10). A plurality of pressure wheels (7) are fixedly installed on the material spreading mechanism (5) located between two of the guide frames (6), and a plurality of pressure wheels (7) are also fixedly installed in the chassis (1) located between the other two guide frames (6); A plurality of punches (11) are movably mounted in each of the two second turntables (10), the punches (11) comprising an upper rod body (12) and a lower rod body (14), a plurality of pressure blocks (13) are movably mounted on the top of the upper rod body (12), and the upper rod body (12) and the lower rod body (14) are movably connected to each other.

2. A rotary tablet press according to claim 1, characterized in that: A plurality of tablet pressing dies (9) are fixedly installed in the first turntable (8).

3. A rotary tablet press according to claim 1, characterized in that: A slide groove (15) is provided on the top of the upper rod body (12), and the transverse cross section of the slide groove (15) is cross-shaped. Countersunk holes (16) are provided on the four inner surfaces of the slide groove (15), and connecting screws (24) are inserted into the countersunk holes (16). A connecting block (20) is fixedly installed on the bottom of the upper rod body (12), and a first screw groove (19) is provided on the outer side of the upper rod body (12). A through-type socket (17) is provided in the upper rod body (12) and the connecting block (20), and a top rod (18) is inserted into the socket (17).

4. A rotary tablet press according to claim 3, characterized in that: A slider (22) is fixedly mounted on one side of the bottom of the pressure block (13), one side of the slider (22) has a slope, and the other side of the slider (22) is provided with a second screw groove (23). The pressure block (13) is placed on the top of the upper rod (12), the slider (22) is inserted and installed in the slide groove (15), and one side of the connecting screw (24) is threadedly connected in the second screw groove (23). The connecting screw (24) located between the slider (22) and one side of the slide groove (15) is also provided with a compression spring (25).

5. A rotary tablet press according to claim 4, characterized in that: A top block (21) is fixedly mounted on the top of the push rod (18), and the push rod (18) and the top block (21) cooperate with the lower rod body (14), so that the upper rod body (12) and the lower rod body (14) can maintain a vertical posture.

6. A rotary tablet press according to claim 3, characterized in that: A connecting groove (26) is provided at the top of the lower rod body (14), and a pin shaft (27) is rotatably installed in the connecting groove (26). The lower rod body (14) is rotatably installed on the connecting block (20) through the connecting groove (26) at the top, and the pin shaft (27) located in the connecting groove (26) is also inserted into a through hole in the connecting block (20).

7. A rotary tablet press according to claim 6, characterized in that: A limiting sleeve (28) is inserted and installed on the outer side of the lower rod body (14), so that the upper rod body (12) and the lower rod body (14) are arranged in a foldable structure.

Images