Rotary tablet press

Abstract

The utility model relates to the technical field of pharmaceutical equipment, in particular to a rotary tablet press, which comprises a base, a tablet pressing mechanism, a material receiving turntable and a cleaning mechanism, the tablet pressing mechanism is arranged at the top of the base, and the tablet pressing mechanism comprises a tablet pressing component; the material receiving turntable is rotatably arranged on the tabletting mechanism, a fixing ring is rotatably arranged on the outer side of the material receiving turntable, a conveying belt is slidably arranged at the top of the fixing ring, and a plurality of material receiving grooves are formed in the conveying belt at equal intervals; the cleaning mechanism is arranged at the top of the base and located on the side face of the tabletting mechanism. Through the arrangement of the cleaning mechanism, medicine powder adhered to the surface of the tablet pressing head can be removed and collected through the cleaning cotton after the tablet pressing head presses tablets every time, so that deviation of indexes such as the weight, the thickness and the hardness of the tablets caused by the fact that powder residues on the surface of the tablet pressing head affect the precision and the consistency of tablet pressing can be avoided, and the quality of the medicine is improved.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical equipment technology, and in particular to a rotary tablet press. Background Technology

[0002] Rotary tablet presses are widely used in tablet production in the pharmaceutical, food, and chemical industries. They are particularly advantageous in scenarios requiring large-scale production due to their high production speed and stable tablet quality.

[0003] Chinese Patent No. CN211195061U discloses a rotary tablet compressor, including a base shell, a turntable, an upper mold, and a lower mold. The base shell has a through hole on its upper surface, and force-bearing seats are fixed to the front and rear walls of the through hole. The turntable is rotatably placed on the force-bearing seats via ball bearings. The lower mold and upper mold are coaxially arranged above the turntable. The lower mold has multiple cavities circumferentially arranged, and the upper mold has corresponding pressure bars. The pressure bars are pressed into the mold cavities by a pressure plate. When the pressure plate presses down, it only contacts the left side portion of the pressure bars of the upper mold. A feed hopper outlet is located in the mold cavity below the right side of the upper mold. The beneficial effects of this invention are: reduced volume, simple tablet blowing mechanism, and the ability to compress while feeding.

[0004] However, the above-mentioned publicly disclosed solutions have the following shortcomings: After the existing rotary tablet press compresses the drug powder into tablets, some powder tends to adhere to the tablet head, which will affect the shape and powder content of the tablets during subsequent compression, affect the uniformity of the tablets, and cannot automatically unload the tablets after compression. Utility Model Content

[0005] The purpose of this invention is to address the problem in the prior art that the tableting head cannot be cleaned and automatically fed, and to propose a rotary tableting machine.

[0006] The technical solution of this utility model: a rotary tablet press, including a base; and further including:

[0007] A tableting mechanism is located on top of a base and includes a tableting component for compressing pharmaceutical powder into tablets during rotation.

[0008] The receiving turntable is rotatably mounted on the tableting mechanism. A fixing ring is rotatably mounted on the outer side of the receiving turntable, and a conveyor belt is slidably mounted on the top of the fixing ring. Multiple receiving grooves are arranged equidistantly on the conveyor belt. Multiple through holes are arranged in a ring on the receiving turntable. The diameter of the through holes is the same as the diameter of the receiving grooves and they are all used to store drug powder. Only one of the through holes on the receiving turntable overlaps with the material grooves on the conveyor belt.

[0009] And a cleaning mechanism, which is located on the top of the base and on the side of the tableting mechanism, is used to clean the tableting components on the tableting mechanism and collect the cleaned drug powder.

[0010] Preferably, it also includes a transport component, which includes a support column, a feeding hopper, an output pipe, and a connecting rod;

[0011] A support column is located at the top of the base, a feeding hopper is located at the top of the support column, an output pipe is located at the bottom of the feeding hopper, a connecting rod is located on the side of the feeding hopper, and a closed ring is provided on the outside of the output pipe.

[0012] Preferably, the tableting mechanism includes a motor, a rotating shaft, a tableting turntable, and a tableting assembly;

[0013] The motor is located above the base, the rotating shaft is set at the output end of the motor, the tableting turntable is set on the outside of the rotating shaft, the bottom of the rotating shaft is connected to the inside of the receiving turntable, the receiving turntable and the tableting turntable are the same size, and the tableting turntable is provided with multiple through holes in a ring, which are the same diameter as the through holes on the receiving turntable, and each through hole corresponds to the other one by one.

[0014] The tableting assembly is located on top of the base and is used to compress the drug powder in the receiving turntable into tablets.

[0015] Preferably, the tableting assembly includes a fixing rod, a first extrusion table, a tableting head, a second spring, and a fixing plate;

[0016] A fixing rod is set on the side of the base, an extrusion table is set on the top of the fixing rod, a tableting head is slidably set on the tableting turntable, a fixing plate is set on the top of the tableting head, a spring is set on the bottom of the fixing plate, a fixing plate is set on the top of the base, a top rod is slidably set on the inner side of the receiving turntable, a spring is set on the outer side of the top rod, a connecting column is set at the axis of the fixing plate, and an extrusion table is set on the top of the fixing plate.

[0017] Preferably, the cleaning mechanism includes a second support column, a mounting plate, and cleaning components;

[0018] Support column two is located on the top of the base, and mounting plate is located on the top of support column two;

[0019] The cleaning component is located on the top of mounting plate two and is used to clean the tableting head after the medication has been compressed.

[0020] Preferably, the cleaning components include a receiving plate, a protective plate, a fixed shaft, and a blower;

[0021] The blower is located on the top of the mounting plate. The blower's output end is equipped with an exhaust pipe. A receiving plate is located on the side of the exhaust pipe. Protective plates are installed on both sides of the receiving plate. A fixed shaft is located on the top of the receiving plate. A rotating rod is rotatably mounted on the outside of the fixed shaft. A sponge block is installed at the end of the rotating rod. A fixing block one is located at the bottom of the rotating rod. A spring one is installed on the side of the fixing block one. A fixing block two is installed at the end of the spring one away from the fixing block one.

[0022] Compared with the prior art, the present invention has the following beneficial technical effects:

[0023] 1. By configuring the transport components, the conveyor belt runs at the same speed as the receiving turntable. Therefore, during the rotation, there is always a material trough and a through hole connected together. This allows the transport of drug powder to be completed during tableting, enabling continuous production, greatly shortening the production cycle, improving production efficiency, and processing more drug powder in a short time to meet the needs of large-scale production. At the same time, since the volume of the material trough and the empty trough during tableting is the same, the consistency of key indicators such as weight, hardness, and thickness of each tablet is ensured, thereby improving the uniformity and stability of the drug.

[0024] 2. With the cleaning mechanism in place, the tablet compressor head can remove and collect the powder adhering to its surface with a cleaning cotton after each tablet compression. This prevents powder residue on the surface of the tablet compressor head from affecting the accuracy and consistency of tablet compression, thus avoiding deviations in indicators such as tablet weight, thickness, and hardness, and improving the quality of the drug. At the same time, it can also prevent powder residue on the surface of the tablet compressor head from causing problems such as sticking and cracking, which affect the appearance and integrity of the drug and improve the pass rate of the drug.

[0025] 3. Through the setting of the tableting mechanism, the motor drives the receiving turntable to rotate to the second extrusion table. Under the action of the second extrusion table, the pressed tablets can be ejected from the device. This enables continuous tablet production without manual removal of tablets, reducing production interruptions caused by waiting for manual removal. This allows the equipment to operate more efficiently, thus significantly improving production efficiency. At the same time, it ensures that the tablets remain intact when leaving the tableting tank, reducing tablet breakage caused by improper manual operation. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0027] Figure 2 This is a structural schematic diagram of the transport component;

[0028] Figure 3 This is a schematic diagram of the cleaning mechanism;

[0029] Figure 4This is a schematic diagram of the tablet compression mechanism;

[0030] Figure 5 This is a schematic diagram of the internal structure of the tablet compression mechanism.

[0031] Reference numerals: 1. Base; 201. Support column one; 202. Feed hopper; 203. Output pipe; 204. Connecting rod; 205. Closing ring; 206. Conveyor belt; 207. Fixing ring; 208. Material trough; 301. Support column two; 302. Mounting plate; 303. Blower; 304. Exhaust pipe; 305. Receiving plate; 306. Protective plate; 307. Fixed shaft; 308. Rotating rod; 309. 310. Sponge block; 311. Fixing block one; 312. Spring one; 313. Fixing block two; 401. Motor; 402. Rotating shaft; 403. Pressing turntable; 404. Receiving turntable; 405. Fixing rod; 406. Extrusion table one; 407. Pressing head; 408. Spring two; 409. Fixing plate; 410. Fixing plate; 411. Extrusion table two; 412. Connecting column; 413. Spring three; 414. Top rod. Detailed Implementation

[0032] Example 1

[0033] like Figures 1-5 As shown, the rotary tablet press proposed in this utility model includes a base 1, a tablet pressing mechanism, a receiving turntable 404, and a cleaning mechanism:

[0034] The tableting mechanism is located on the top of the base 1. The tableting mechanism includes a tableting component for compressing the drug powder into tablets during rotation.

[0035] The receiving turntable 404 is rotatably mounted on the tableting mechanism. A fixing ring 207 is rotatably mounted on the outer side of the receiving turntable 404. A conveyor belt 206 is slidably mounted on the top of the fixing ring 207. Multiple receiving grooves 208 are equidistantly arranged on the conveyor belt 206. Multiple through holes are arranged in a ring on the receiving turntable 404. The diameter of the through holes is the same as the diameter of the receiving grooves 208 and they are all used to store drug powder. Only one of the through holes on the receiving turntable 404 overlaps with the material groove 208 on the conveyor belt 206.

[0036] The cleaning mechanism is located on the top of the base 1 and on the side of the tableting mechanism. It is used to clean the tableting components on the tableting mechanism and collect the cleaned drug powder.

[0037] The transport assembly includes a support column 201, a feeding hopper 202, an output pipe 203, and a connecting rod 204. The support column 201 is located on the top of the base 1, the feeding hopper 202 is located on the top of the support column 201, the output pipe 203 is located at the bottom of the feeding hopper 202, and the connecting rod 204 is located on the side of the feeding hopper 202. The end of the connecting rod 204 away from the support column 201 is connected to a fixing ring 207 to fix the position of the fixing ring 207. The inner diameter of the output pipe 203 is the same as the inner diameter of the trough 208. A closed ring 205 is provided on the outside of 3. The closed ring 205 completely covers the top of the conveyor belt 206 to prevent the medicine powder from flying out during the transportation process. All the medicine powder is poured into the feeding hopper 202. When the conveyor belt 206 is started, the material trough 208 on the conveyor belt 206 moves to the bottom of the output pipe 203. The output pipe 203 puts the medicine powder in the feeding hopper 202 into the material trough 208. When the conveyor belt 206 continues to transport to the overlapping through hole on the receiving turntable 404, the medicine powder is poured into the receiving turntable 404.

[0038] The tableting mechanism includes a motor 401, a rotating shaft 402, a tableting turntable 403, and a tableting assembly. The motor 401 is located above the base 1, the rotating shaft 402 is located at the output end of the motor 401, the tableting turntable 403 is located outside the rotating shaft 402, the bottom of the rotating shaft 402 is connected to the inner side of the receiving turntable 404, the receiving turntable 404 and the tableting turntable 403 are the same size, the tableting turntable 403 is provided with a ring of multiple through holes, and the diameter of the through holes on the receiving turntable 404 is the same, and each through hole corresponds to the other. The tableting assembly is located on the top of the base 1 and is used to compress the drug powder in the receiving turntable 404 into tablets. The tableting assembly includes a fixing rod 405, a first extrusion table 406, a tableting head 407, a second spring 408, and a fixing plate 409. The fixing rod 405 is located on the side of the base 1. The first extrusion table 406 is located on top of the fixing rod 405. The tableting head 407 is slidably mounted on the tableting turntable 403, with the first extrusion table 406 directly above the tableting head 407. The fixing plate 409 is located on top of the tableting head 407, and the second spring 408 is located at the bottom of the fixing plate 409. One end of 408 away from the fixed plate 409 is connected to the top of the tableting turntable 403. A fixed plate 410 is provided on the top of the base 1. A push rod 414 is slidably provided on the inner side of the receiving turntable 404. A spring 413 is provided on the outer side of the push rod 414. The top of the spring 413 is connected to the bottom of the receiving turntable 404. The bottom of the push rod 414 is in contact with the top of the fixed plate 410. A connecting post 412 is provided at the axis of the fixed plate 410. The top of the connecting post 412 is connected to the top of the receiving turntable 404. The bottom of the disc 404 is attached to the top of the fixed disc 410, and the second extrusion table 411 is provided on the top of the fixed disc 410. The second extrusion table 411 is located directly below the top rod 414. The motor 401 is started, and the motor 401 drives the rotating shaft 402 to rotate. The rotating shaft 402 simultaneously drives the tableting turntable 403 and the receiving turntable 404 to rotate. When the tableting head 407 on the tableting turntable 403 rotates to the first extrusion table 406, the first extrusion table 406 presses the tableting head 407 downward. The third spring 413 is in its natural state. The push rod 414 blocks part of the through hole to form a slot. The height of the slot is the same as the height of the material trough 208. When the tablet head 407 is squeezed, the bottom is inserted into the slot of the receiving turntable 404 to compress the drug powder in the slot into tablets. After the tablets are compressed, they rotate with the receiving turntable 404 to the second extrusion table 411. The second extrusion table 411 pushes the push rod 414 upward out of the slot, thereby pushing the tablets out of the receiving turntable 404 and out of the device, thus completing the feeding and collection.

[0039] Example 2

[0040] like Figure 3 As shown, the rotary tablet press proposed in this utility model, compared with Embodiment 1, details the structure of the cleaning mechanism.

[0041] The cleaning mechanism includes a second support column 301, a mounting plate 302, and a cleaning component; the second support column 301 is located on the top of the base 1, and the mounting plate 302 is located on the top of the second support column 301; the cleaning component is located on the top of the second mounting plate 302 and is used to clean the tableting head 407 after the drug has been compressed. The cleaning assembly includes a receiving plate 305, a protective plate 306, a fixed shaft 307, and a blower 303. The blower 303 is mounted on top of the mounting plate 302. An exhaust pipe 304 is installed at the output end of the blower 303. The receiving plate 305 is mounted on the side of the exhaust pipe 304. The width of the receiving plate 305 is the same as the maximum width of the exhaust pipe 304, and the bottom of the receiving plate 305 is connected to the top of the mounting plate 302. Protective plates 306 are installed on both sides of the receiving plate 305 to prevent the powder from falling off the sides of the receiving plate 305 when it is sucked away by the blower 303. The fixed shaft 307 is mounted on top of the receiving plate 305. A rotating rod 308 is rotatably mounted on the outer side of the fixed shaft 307. A sponge block 309 is installed at the end of the rotating rod 308, and a fixing block 310 is installed at the bottom of the rotating rod 308. A spring 311 is provided on the side of the 310. A fixing block 312 is provided at the end of the spring 311 away from the fixing block 310. The bottom of the fixing block 312 is connected to the top of the receiving plate 305. When the blower 303 is started, when the tablet head 407 rotates to the vicinity of the sponge block 309, it will squeeze and rub against the sponge block 309, thereby cleaning the end of the tablet head 407 that is pressing the drug powder, so as to avoid residual powder affecting subsequent compression. The tablet head 407 continues to rotate, which will drive the rotating rod 308 to rotate a certain distance. At this time, the spring 311 is compressed. After the tablet head 407 is separated from the sponge block 309, the rotating rod 308 returns to its original position under the action of the spring 311. The wiped powder will fall onto the receiving plate 305. The blower 303 absorbs the powder into the interior through the exhaust pipe 304, thereby recycling the drug.

[0042] In summary, when using this invention, all the powdered tablets are poured into the feeding hopper 202. Then, the conveyor belt 206, motor 401, and blower 303 are started. When the material trough 208 on the conveyor belt 206 moves to the bottom of the output pipe 203, the output pipe 203 feeds the powdered medicine from the feeding hopper 202 into the material trough 208. The conveyor belt 206 continues to transport the powdered medicine to the overlapping through holes on the receiving turntable 404, where it pours the powdered medicine into the receiving turntable 404. At the same time, the motor 401 drives the rotating shaft 402 to rotate, which in turn drives the tableting turntable 403 and the receiving turntable 404 to rotate. When the tableting head 407 on the tableting turntable 403 rotates to the extrusion table 406, the extrusion table 406 presses the tableting head 407 downwards. The bottom of the tableting head 407 is inserted into the empty slot of the receiving turntable 404 during the compression. The drug powder in the empty slot is compressed into tablets. When the tablet pressing head 407 continues to rotate to the vicinity of the sponge block 309, it will squeeze and rub against the sponge block 309, thus cleaning the end of the tablet pressing head 407 that is pressing the drug powder. The tablet pressing head 407 continues to rotate, which will drive the rotating rod 308 to rotate a certain distance. When the tablet pressing head 407 is separated from the sponge block 309, the rotating rod 308 returns to its original position under the action of the spring 311. The wiped powder will fall onto the receiving plate 305. The blower 303 absorbs the powder into the interior through the exhaust pipe 304, thus recycling the drug. At the same time, when the tablets after compression are rotated by the receiving turntable 404 to the extrusion table 411, the extrusion table 411 pushes the top rod 414 upward out of the empty slot, thus pushing the tablet out of the receiving turntable 404 and out of the device, thus completing the feeding and collection.

[0043] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A rotary tablet press, comprising a base (1); characterized in that, Also includes: A tableting mechanism is located on top of a base (1). The tableting mechanism includes a tableting component for compressing pharmaceutical powder into tablets during rotation. A receiving turntable (404) is rotatably mounted on the tableting mechanism. A fixing ring (207) is rotatably mounted on the outer side of the receiving turntable (404). A conveyor belt (206) is slidably mounted on the top of the fixing ring (207). Multiple receiving grooves (208) are equidistantly arranged on the conveyor belt (206). Multiple through holes are arranged in a ring on the receiving turntable (404). The diameter of the through holes is the same as the diameter of the receiving grooves (208) and they are all used to store drug powder. Only one of the through holes on the receiving turntable (404) overlaps with the material groove (208) on the conveyor belt (206). And a cleaning mechanism, which is located on the top of the base (1) and on the side of the tableting mechanism, for cleaning the tableting components on the tableting mechanism and collecting the cleaned drug powder.

2. The rotary tablet press according to claim 1, characterized in that, It also includes a transport component, which includes a support column (201), a feeding hopper (202), an output pipe (203), and a connecting rod (204); Support column 1 (201) is located on the top of base (1), feeding hopper (202) is located on the top of support column 1 (201), output pipe (203) is located at the bottom of feeding hopper (202), connecting rod (204) is located on the side of feeding hopper (202), and a closing ring (205) is provided on the outside of output pipe (203).

3. The rotary tablet press according to claim 1, characterized in that, The tableting mechanism includes a motor (401), a rotating shaft (402), a tableting turntable (403), and a tableting assembly; The motor (401) is located above the base (1), the rotating shaft (402) is located at the output end of the motor (401), the tableting turntable (403) is located on the outside of the rotating shaft (402), the bottom of the rotating shaft (402) is connected to the inside of the receiving turntable (404), the receiving turntable (404) and the tableting turntable (403) are the same size, and the tableting turntable (403) is provided with multiple through holes in a ring, which are the same diameter as the through holes on the receiving turntable (404), and each through hole corresponds to the other one by one; The tableting assembly is located on top of the base (1) and is used to compress the pharmaceutical powder in the receiving turntable (404) into tablets.

4. The rotary tablet press according to claim 1, characterized in that, The tableting assembly includes a fixing rod (405), a first extrusion table (406), a tableting head (407), a second spring (408), and a fixing plate (409); A fixing rod (405) is set on the side of the base (1), an extrusion table (406) is set on the top of the fixing rod (405), a tablet head (407) is slidably set on the tablet turntable (403), a fixing plate (409) is set on the top of the tablet head (407), a spring (408) is set on the bottom of the fixing plate (409), a fixing plate (410) is set on the top of the base (1), a top rod (414) is slidably set on the inner side of the receiving turntable (404), a spring (413) is set on the outer side of the top rod (414), a connecting column (412) is set at the axis of the fixing plate (410), and an extrusion table (411) is set on the top of the fixing plate (410).

5. The rotary tablet press according to claim 1, characterized in that, The cleaning mechanism includes a second support column (301), a mounting plate (302), and cleaning components; Support column 2 (301) is located on the top of base (1), and mounting plate (302) is located on the top of support column 2 (301); The cleaning component is located on the top of the mounting plate (302) and is used to clean the tableting head (407) after the drug has been compressed.

6. The rotary tablet press according to claim 1, characterized in that, The cleaning components include a receiving plate (305), a protective plate (306), a fixed shaft (307), and a blower (303); A blower (303) is mounted on the top of the mounting plate (302). An exhaust pipe (304) is provided at the output end of the blower (303). A receiving plate (305) is provided on the side of the exhaust pipe (304). A protective plate (306) is provided on both sides of the receiving plate (305). A fixed shaft (307) is mounted on the top of the receiving plate (305). A rotating rod (308) is rotatably mounted on the outside of the fixed shaft (307). A sponge block (309) is provided at the end of the rotating rod (308). A fixing block one (310) is provided at the bottom of the rotating rod (308). A spring one (311) is provided on the side of the fixing block one (310). A fixing block two (312) is provided at the end of the spring one (311) away from the fixing block one (310).

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