Tabletting dryer

By introducing agitation and blowing mechanisms into the dryer, the problem of uneven heating during tableting was solved, improving drying quality and efficiency, and enhancing the stability and flexibility of the equipment.

CN121916637AInactive Publication Date: 2026-04-24CHENGDU RUOGU XINSHENG TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHENGDU RUOGU XINSHENG TECH CO LTD
Filing Date
2023-04-07
Publication Date
2026-04-24
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing dryers cause uneven heating of compressed tablets during drying, affecting drying quality and efficiency.

Method used

A tablet dryer was designed, comprising an agitation mechanism and a blower mechanism. The agitation rod agitates the tablets to improve heating uniformity, and the blower mechanism increases the contact between heat and the tablets. Combined with a support slide plate and a support groove, the stability and flexibility of the drying drum are improved.

Benefits of technology

It achieves uniform heating during tablet pressing, improves drying quality and efficiency, and enhances the stability and flexibility of the drying drum. It has a simple structure and is highly practical.

✦ Generated by Eureka AI based on patent content.

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Abstract

The tablet drying machine comprises a box body, a drying barrel is arranged in the box body, a heater is fixedly installed on the inner wall of the drying barrel, and a stirring mechanism is arranged between the box body and the drying barrel; the stirring mechanism comprises a motor, the motor is fixedly installed on one side of the box body, a first rotating shaft is fixedly installed at the output end of the motor and penetrates through one side of the box body, the outer wall of the first rotating shaft is rotationally connected with the box body through a first bearing, and a first gear is fixedly installed at one end of the first rotating shaft. According to the tablet drying device, the stirring rods can stir tablets, so that the tablets are heated more uniformly, the tablets are prevented from being accumulated in the drying barrel, the drying effect of the tablets is improved, practicability is high, air flow in the drying barrel can be increased by arranging the air blowing mechanism, contact between heat and the tablets is increased, and the drying quality of the tablets is further improved; the tablet drying device is simple in structure and high in practicability.
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Description

Technical Field

[0001] This invention relates to the field of tablet manufacturing technology in the pharmaceutical industry, specifically a tablet compression and drying machine. Background Technology

[0002] In a narrow sense, pharmaceutical preparations refer to the dosage form of drugs, such as injections, tablets, ointments, and decoctions, with tablets being the most commonly used dosage form. Tablets are typically manufactured by pressing the raw material into a tablet shape using a tablet press, followed by coating as needed. A standard tablet press consists of an upper and lower mold; the raw material is added to the lower mold, and the upper and lower molds press together to form a tablet, which is then dried in a dryer to obtain the finished product.

[0003] In existing dryers, the tablets are mostly in one position when drying tablets, which prevents them from making sufficient contact with heat. This results in uneven heating of the tablets, affecting the drying quality and the drying efficiency of the dryer. To address this, we propose a tablet dryer. Summary of the Invention

[0004] The purpose of this invention is to provide a tableting dryer to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a tablet drying machine, including a box body, a drying barrel is arranged inside the box body, a heater is fixedly installed on the inner wall of the drying barrel, and an agitation mechanism is arranged between the box body and the drying barrel; The agitation mechanism includes a motor, which is fixedly installed on one side of the housing. A rotating shaft is fixedly installed at the output end of the motor, penetrating one side of the housing. The outer wall of the rotating shaft is rotatably connected to the housing via a bearing. A gear is fixedly installed at one end of the rotating shaft. A ring gear plate is fixedly installed at the bottom of the drying drum, and the gear meshes with the ring gear plate. A rotating shaft is rotatably connected to the top of the inner wall of the housing via a bearing. The rotating shaft penetrates the top of the drying drum, and its outer wall is rotatably connected to the drying drum via a bearing. An agitator is installed inside the drying drum, and the agitator is fixedly installed on the outer wall of the rotating shaft.

[0006] According to the above technical solution, a partition is fixedly installed on one side of the housing, and the motor is set inside the partition. By setting the partition, the motor can be protected to a certain extent, and the partition is made of heat-conducting material to ensure the normal service life of the motor.

[0007] According to the above technical solution, a blower mechanism is provided at the top of the drying drum. The blower mechanism includes a through pipe, which is connected to the top of the drying drum. A support plate is fixedly installed on the inner wall of the through pipe. A rotating shaft three passes through the support plate, and the outer wall of the rotating shaft three is rotatably connected to the support plate through a bearing four. A fan blade is fixedly installed on the outer wall of the rotating shaft three. A gear two is fixedly installed at the top of the rotating shaft three. A ring gear plate two is fixedly installed on the inner wall of the box. The gear two meshes with the ring gear plate two. By setting the support plate and the bearing four, the rotating shaft three can be fixedly rotated. Furthermore, by setting the gear two and the ring gear plate two, the transmission between the drying drum and the fan blade can be achieved.

[0008] According to the above technical solution, a baffle is provided below the fan blade. The baffle is fixedly installed on the inner wall of the pipe. By setting the baffle, the fan blade can be protected to a certain extent, so as to avoid collision between the pressure plate and the fan blade and affect the normal operation of the fan blade.

[0009] According to the above technical solution, an L-shaped support plate is fixedly installed at the top of the drying drum. The L-shaped support plate is rotatably sleeved on the outer wall of the rotating shaft three through the bearing five. By setting the L-shaped support plate, the rotating shaft three can play a certain supporting role, making the rotating shaft three more stable when rotating.

[0010] According to the above technical solution, the drying drum is fixedly installed with a support slide plate, and a support slide groove is opened on the inner wall of the box. The support slide plate and the support slide groove are slidably connected. By setting the support slide plate and the support slide groove, the drying drum can play a certain supporting role and improve the stability of the drying drum when rotating.

[0011] According to the above technical solution, a groove pad is fixedly installed on the inner wall of the support slide, and the groove pad is in close contact with the outer wall surface of the support slide. The groove pad is made of Teflon. By setting the groove pad, the friction between the support slide and the support slide can be reduced, making the drying drum more flexible when rotating.

[0012] According to the above technical solution, a discharge pipe is connected to the bottom of the drying drum, the discharge pipe passes through the bottom of the box body, and the outer wall of the discharge pipe is rotatably connected to the box body through a bearing six. A solenoid valve is fixedly installed in the discharge pipe, and a feed pipe is connected to the top of the drying drum.

[0013] According to the above technical solution, a ramp is fixedly installed at the bottom of the inner wall of the drying drum, and a support leg is fixedly installed at the bottom of the box body. The bottom of the support leg is provided with a toothed groove, and the number of toothed grooves is several. A feed door is hinged to the top of the box body. By setting the toothed groove, the friction between the support leg and the ground can be increased, thereby improving the support stability of the support leg. By setting the ramp, the tablets can be guided by the ramp and enter the discharge pipe more easily.

[0014] Compared with the prior art, the beneficial effects achieved by the present invention are: (1) This tablet dryer, by setting a stirring mechanism, can make the stirring rod stir the tablet, so that the tablet is heated more evenly, avoids the tablet from piling up in the drying barrel, improves the drying effect of the tablet, and is highly practical. (2) This tablet dryer, by setting a blower mechanism, can increase the air flow in the drying barrel, increase the contact between heat and tablets, further improve the drying quality of tablets, and improve the drying efficiency of tablets. It has a simple structure and strong practicality. (3) The tablet dryer can provide a certain support for the drying drum by setting a support slide plate and a support slide groove, thereby improving the stability of the drying drum when it rotates. In addition, by setting a groove pad, the friction between the support slide plate and the support slide groove can be reduced, making the drying drum more flexible when it rotates. (4) By setting up a ramp, the tablets can be guided by the ramp and enter the discharge pipe more easily. By setting up toothed grooves, the friction between the support legs and the ground can be increased, thereby improving the support stability of the support legs. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the front cross-sectional structure of the present invention; Figure 3 For the present invention Figure 2 Enlarged structural diagram of section A in the middle; Figure 4 For the present invention Figure 2 Enlarged structural diagram of section B in the middle; Figure 5 For the present invention Figure 2 Enlarged structural diagram of section C; Figure 6 For the present invention Figure 2 Enlarged structural diagram of section D in the middle.

[0016] In the diagram: 1. Box body 2. Drying drum 3. Agitating mechanism 4. Blower mechanism 5. Baffle 6. L-shaped support plate 7. Feed pipe 8. Heater 9. Support slide plate 10. Support chute 11. Groove pad 12. Discharge pipe 13. Solenoid valve 14. Support leg 15. Gear groove 16. Slope 301. Motor 302. Divider box 303. Rotating shaft one 304. Gear one 305. Ring gear plate one 306. Rotating shaft two 307. Agitator rod 401. Through pipe 402. Support plate 403. Rotating shaft three 404. Fan blade 405. Gear two 406. Ring gear plate two. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0018] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the invention, and should not be construed as limiting the invention.

[0019] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0020] like Figure 1-6As shown, the present invention provides a technical solution: a tablet drying machine, including a housing 1, a drying drum 2 disposed inside the housing 1, a supporting slide plate 9 fixedly installed on the drying drum 2, a supporting groove 10 formed on the inner wall of the housing 1, the supporting slide plate 9 slidably connected to the supporting groove 10, the supporting slide plate 9 and the supporting groove 10 can provide a certain support for the drying drum 2 by setting the supporting slide plate 9 and the supporting groove 10, improving the stability of the drying drum 2 when rotating, a groove pad 11 fixedly installed on the inner wall of the supporting groove 10, the groove pad 11 in close contact with the outer wall surface of the supporting slide plate 9, the groove pad 11 is made of Teflon, the groove pad 11 can reduce the friction between the supporting slide plate 9 and the supporting groove 10 by setting the groove pad 11, making the drying drum 2 more flexible when rotating, and a discharge pipe connected to the bottom end of the drying drum 2. 12. The discharge pipe 12 passes through the bottom of the box body 1, and the outer wall of the discharge pipe 12 is rotatably connected to the box body 1 through bearing 6. A solenoid valve 13 is fixedly installed in the discharge pipe 12. The top of the drying barrel 2 is connected to the feed pipe 7. A ramp 16 is fixedly installed at the bottom of the inner wall of the drying barrel 2. A support leg 14 is fixedly installed at the bottom of the box body 1. The bottom of the support leg 14 is provided with toothed grooves 15. The number of toothed grooves 15 is several. The top of the box body 1 is hinged to the feed gate. By setting the toothed grooves 15, the friction between the support leg 14 and the ground can be increased, thereby improving the support stability of the support leg 14. By setting the ramp 16, the tablets can be guided by the ramp 16 and more easily enter the discharge pipe 12. A blower mechanism 4 is set at the top of the drying barrel 2. The blower mechanism 4 is packaged with... The assembly includes a through pipe 401, which is connected to the top of the drying drum 2. A support plate 402 is fixedly installed on the inner wall of the through pipe 401, and a rotating shaft 403 passes through the support plate 402. An L-shaped support plate 6 is fixedly installed at the top of the drying drum 2. The L-shaped support plate 6 is rotatably sleeved on the outer wall of the rotating shaft 403 via a bearing 5. By setting the L-shaped support plate 6, the rotating shaft 403 can be supported to a certain extent, making the rotating shaft 403 more stable when rotating. The outer wall of the rotating shaft 403 is rotatably connected to the support plate 402 via a bearing 4. A fan blade 404 is fixedly installed on the outer wall of the rotating shaft 403. A baffle 5 is set below the fan blade 404 and fixedly installed on the inner wall of the through pipe 401. By setting the baffle 5, the fan blade 404 can be protected to a certain extent. The function is to prevent collisions between the tablet press and the fan blade 404, which would affect the normal operation of the fan blade 404. A gear 2 405 is fixedly installed at the top of the rotating shaft 3 403, and a ring gear plate 2 406 is fixedly installed on the inner wall of the housing 1. The gear 2 405 meshes with the ring gear plate 2 406. By setting a support plate 402 and bearing 4, the rotating shaft 3 403 can be fixedly rotated. Furthermore, by setting gear 2 405 and ring gear plate 2 406, the transmission between the drying drum 2 and the fan blade 404 is achieved. By setting a blower mechanism 4, the airflow in the drying drum 2 can be increased, increasing the contact between heat and the tablet press, further improving the drying quality and efficiency of the tablet press. The structure is simple and highly practical. A heater 8 is fixedly installed on the inner wall of the drying drum 2.An agitation mechanism 3 is installed between the chamber 1 and the drying drum 2; The stirring mechanism 3 includes a motor 301, which is fixedly installed on one side of the housing 1. A partition 302 is fixedly installed on one side of the housing 1, and the motor 301 is located inside the partition 302. The partition 302 provides some protection for the motor 301 and is made of heat-conducting material to ensure the normal service life of the motor 301. A rotating shaft 303 is fixedly installed at the output end of the motor 301. The rotating shaft 303 passes through one side of the housing 1, and its outer wall is rotatably connected to the housing 1 via a bearing. A gear 304 is fixedly installed at one end of the rotating shaft 303. A ring tooth plate 305 is fixedly installed at the bottom of the barrel 2. A gear 304 meshes with the ring tooth plate 305. A rotating shaft 306 is rotatably connected to the top of the inner wall of the box 1 through a bearing 2. The rotating shaft 306 passes through the top of the drying barrel 2, and the outer wall of the rotating shaft 306 is rotatably connected to the drying barrel 2 through a bearing 2. An agitator 307 is installed inside the drying barrel 2. The agitator 307 is fixedly installed on the outer wall of the rotating shaft 306. By setting the agitation mechanism 3, the agitator 307 can agitate the tablets, making the tablets heat more evenly, avoiding the accumulation of tablets in the drying barrel 2, improving the drying effect of the tablets, and making it highly practical.

[0021] When using this tablet dryer, starting the motor 301 drives the rotating shaft 303 to rotate, which in turn drives the gear 304 to rotate. The gear 304 then drives the ring plate 305 to rotate, which in turn drives the drying drum 2 to rotate. The drying drum 2 causes the tablets inside to rotate, which in turn agitates the tablets with the stirring rod 307, making the tablets heat more evenly and preventing them from piling up in the drying drum 2, thus improving the drying effect and making it highly practical. When the drying drum 2 rotates, it drives the connecting pipe 401 to rotate, which in turn drives the rotating shaft 403 to rotate via the support plate 402. The rotating shaft 403 then drives the gear 405 to rotate, which in turn rotates under the action of the ring plate 406, thus driving the rotating shaft 403 to rotate. Shaft 3 403 drives the fan blade 404 to rotate. When the fan blade 404 rotates, it generates downward airflow, thereby increasing the airflow in the drying drum 2, increasing the contact between heat and the tablets, further improving the drying quality and efficiency of the tablets. The structure is simple and highly practical. By setting the support slide plate 9 and the support groove 10, the drying drum 2 can be supported to a certain extent, improving the stability of the drying drum 2 when rotating. By setting the groove pad 11, the friction between the support slide plate 9 and the support groove 10 can be reduced, making the drying drum 2 more flexible when rotating. By setting the ramp 16, the tablets can be guided by the ramp 16 and more easily enter the discharge pipe 12. By setting the toothed groove 15, the friction between the support leg 14 and the ground can be increased, thereby improving the support stability of the support leg 14.

[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0023] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A tablet drying machine, comprising a housing (1), characterized in that: The box (1) is equipped with a drying barrel (2), and a heater (8) is fixedly installed on the inner wall of the drying barrel (2). A stirring mechanism (3) is provided between the box (1) and the drying barrel (2). The stirring mechanism (3) includes a motor (301), which is fixedly installed on one side of the housing (1). A rotating shaft (303) is fixedly installed at the output end of the motor (301). The rotating shaft (303) passes through one side of the housing (1), and the outer wall of the rotating shaft (303) is rotatably connected to the housing (1) through a bearing. A gear (304) is fixedly installed at one end of the rotating shaft (303), and a ring gear is fixedly installed at the bottom end of the drying drum (2). Plate 1 (305), gear 1 (304) meshes with ring gear plate 1 (305), the top of the inner wall of the box (1) is rotatably connected to shaft 2 (306) through bearing 2, shaft 2 (306) passes through the top of the drying barrel (2), and the outer wall of shaft 2 (306) is rotatably connected to the drying barrel (2) through bearing 2, and a stirring rod (307) is provided inside the drying barrel (2), the stirring rod (307) is fixedly installed on the outer wall of shaft 2 (306).

2. The tableting dryer according to claim 1, characterized in that: A partition box (302) is fixedly installed on one side of the box (1), and the motor (301) is located inside the partition box (302).

3. The tableting dryer according to claim 1, characterized in that: The top of the drying drum (2) is provided with a blower mechanism (4), which includes a through pipe (401). The through pipe (401) is connected to the top of the drying drum (2). A support plate (402) is fixedly installed on the inner wall of the through pipe (401). A rotating shaft (403) passes through the support plate (402). The outer wall of the rotating shaft (403) is rotatably connected to the support plate (402) through a bearing (4). A fan blade (404) is fixedly installed on the outer wall of the rotating shaft (403). A gear (405) is fixedly installed at the top of the rotating shaft (403). A ring gear plate (406) is fixedly installed on the inner wall of the box (1). The gear (405) meshes with the ring gear plate (406).

4. A tableting dryer according to claim 3, characterized in that: A baffle (5) is provided below the fan blade (404), and the baffle (5) is fixedly installed on the inner wall of the through pipe (401).

5. A tableting dryer according to claim 1, characterized in that: The top of the drying drum (2) is fixedly installed with an L-shaped support plate (6), which is rotatably sleeved on the outer wall of the rotating shaft (403) via bearing five.

6. A tableting dryer according to claim 1, characterized in that: The drying drum (2) is fixedly installed with a support slide plate (9), and the inner wall of the box (1) is provided with a support slide groove (10). The support slide plate (9) is slidably connected to the support slide groove (10).

7. A tableting dryer according to claim 6, characterized in that: The inner wall of the support slide (10) is fixedly installed with a groove pad (11), which is in close contact with the outer wall surface of the support slide (9). The groove pad (11) is made of Teflon.

8. A tableting dryer according to claim 1, characterized in that: The bottom of the drying drum (2) is connected to a discharge pipe (12), which passes through the bottom of the box (1). The outer wall of the discharge pipe (12) is rotatably connected to the box (1) through a bearing six. A solenoid valve (13) is fixedly installed in the discharge pipe (12). The top of the drying drum (2) is connected to a feed pipe (7).

9. A tableting dryer according to claim 1, characterized in that: The bottom of the inner wall of the drying drum (2) is fixedly installed with a ramp (16), the bottom of the box (1) is fixedly installed with a support leg (14), the bottom of the support leg (14) is provided with a toothed groove (15), the number of the toothed groove (15) is several, and the top of the box (1) is hinged with a feeding door.