Drying device for tablet medicine production

By installing a slide rail and an electrically controlled slider system inside the tablet drying device, the tablets can be flipped up and down, solving the problem of tablet breakage caused by falling from a height, and achieving uniform drying and preservation of efficacy.

CN223512427UActive Publication Date: 2025-11-04SICHUAN WANGLINTANG PHARMA
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202422984562.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-04
Publication Date
2025-11-04
Estimated Expiration
2034-12-04

AI Technical Summary

Technical Problem

Existing tablet drying equipment is prone to causing damage to the tablet surface during the stirring process, resulting in reduced efficacy.

Method used

A slide rail and an electrically controlled slider are installed on the inner wall of the drying device. A rectangular groove is provided on the lifting plate at the lower end of the connecting plate, and a filling block is provided at the feeding pipe. The medicine is flipped up and down by the movement of the electrically controlled slider to avoid the tablets from falling from a height and breaking.

Benefits of technology

This method achieves uniform drying of the medicine, avoids damage to the surface of the tablets, and improves the integrity and efficacy of the tablets.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223512427U_ABST
    Figure CN223512427U_ABST
Patent Text Reader

Abstract

The utility model discloses a drying device for tablet medicine production, and belongs to the field of tablet medicine drying devices. The drying device for tablet medicine production comprises a drying device body, a sliding rail is arranged on the inner wall of the drying device body, an electric control sliding block is arranged in the sliding rail, the drying device further comprises a connecting plate, the connecting plate is arranged on the electric control sliding block, and a lifting plate is arranged at the lower end of the connecting plate. The medicine drying device solves the problems that in order to evenly dry medicine, a spiral stirring plate is arranged in an existing medicine drying device, tablets are lifted to the high position through the spiral stirring plate and then fall down from the high position to be repeatedly stirred, but the surfaces of the tablets can be damaged when the tablets fall down from the high position, and the medicine drying efficiency is high. The layer of medicine powder on the outer surface falls off, so that the weight of each tablet is reduced, and the medicine effect is reduced.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of tablet pharmaceutical drying equipment, specifically a drying equipment for tablet pharmaceutical production. Background Technology

[0002] Tablets are solid dosage forms that are formed by uniformly mixing drugs and excipients and then compressing them into tablets or irregularly shaped tablets. Tablets are mainly oral tablets, but also include lozenges, sublingual tablets, oral patches, chewable tablets, dispersible tablets, effervescent tablets, vaginal tablets, immediate-release or sustained-release or controlled-release tablets, and enteric-coated tablets, etc. They refer to tablet-shaped preparations made from drugs, pesticides, and suitable excipients through formulation technology. Tablets consist of active ingredients, fillers, adsorbents, binders, lubricants, dispersants, wetting agents, disintegrants, flavorings, colorants, etc.

[0003] Chinese Patent Publication No. CN219735844U discloses a drying device for tablet manufacturing, including a drying chamber, a collection box on the side of the drying chamber, a motor at the top center of the drying chamber, an inner chamber inside the drying chamber, a rotating shaft connected to the motor through the inner chamber, a stirring plate on the rotating shaft, a discharge port at the bottom of the inner chamber, a heating plate on the inner wall of the drying chamber, a screen inclinedly arranged directly below the discharge port, a support spring fixed to the inner wall of the drying chamber at the higher end of the screen, a vibrating motor at the bottom of the higher end of the screen, and the lower end of the screen connected to the collection box. A hot air box is arranged above the screen and fixed to the inner wall of the drying chamber. A support plate is arranged on the side of the drying chamber, and a lead screw motor is mounted on the support plate. This device has a simple structure, is easy to operate, and can efficiently dry tablets, while also screening out fine fragments mixed in during the drying process, thus improving the production efficiency of tablets.

[0004] In order to dry the medicine evenly, the medicine drying device of the above-mentioned patent is equipped with a spiral stirring plate inside the device. The tablets are lifted to a high place by the spiral stirring plate and then fall down from the high place, and the stirring is repeated. However, the falling of the tablets from the high place may cause damage to the surface of the tablets, causing the outer layer of medicine powder to fall off, resulting in a reduction in the weight of each tablet and a decrease in efficacy. Utility Model Content

[0005] The purpose of this invention is to provide a drying device for tablet manufacturing. The device features a slide rail on its inner wall, an electrically controlled slider within the slide rail, a connecting plate on the electrically controlled slider, and a lifting plate at the lower end of the connecting plate. The lifting plate has a rectangular groove, while a feeding pipe at the lower end of the drying device has a filling block at the corresponding position in the rectangular groove. A connecting strip is located at the corresponding position of the lifting plate at the feeding port. When the medicine is placed inside the drying device for drying, it falls onto the lifting plate due to gravity. The electrically controlled slider moves up and down within the slide rail, causing the lifting plate to move the medicine up and down. Some medicine falls into the rectangular groove. When the lifting plate falls, the medicine in the rectangular groove is lifted by the filling block, achieving the purpose of turning the medicine and ensuring uniform drying. This solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a drying device for tablet pharmaceutical production, comprising a drying device, a slide rail provided on the inner wall of the drying device, an electrically controlled slider provided in the slide rail, and a connecting plate provided on the electrically controlled slider. A lifting plate is provided at the lower end of the connecting plate, and a rectangular groove is formed on the lifting plate. A feeding pipe is provided at the lower end of the drying device, and a filling block is provided on the inner wall of the feeding pipe at a position corresponding to the rectangular groove. A connecting strip is provided on the lifting plate at the feeding port position. A support column is provided at the lower end of the drying device, and a rotary butterfly valve is provided at the lower end of the feeding pipe.

[0007] Preferably, a feeding hopper is provided at the lower end of the outer surface of the feeding pipe, and the feeding hopper is bolted to the feeding pipe.

[0008] Preferably, a screening screen is provided on the outer surface of the upper end of the hopper, and the screening screen is bolted to the hopper.

[0009] Preferably, the lower end of the hopper has a through hole.

[0010] Preferably, the upper end of the drying device is provided with a dust cover, and the dust cover is connected to the rotating hinge of the drying device.

[0011] Preferably, the lower end of the support column is provided with a connecting flange, and the connecting flange is welded to the support column.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention comprises a slide rail installed on the inner wall of a drying device, an electrically controlled slider installed within the slide rail, a connecting plate mounted on the electrically controlled slider, and a lifting plate at the lower end of the connecting plate. The lifting plate has a rectangular groove, and a feeding pipe is located at the lower end of the drying device. A filling block is installed on the feeding pipe at a corresponding position in the rectangular groove, and a connecting strip is installed on the lifting plate at a corresponding position in the feeding port. When the medicine is placed inside the drying device for drying, it falls onto the lifting plate due to gravity. The electrically controlled slider moves up and down within the slide rail, causing the lifting plate to move the medicine up and down. In this process, some medicines fall into the rectangular trough. When the lifting plate falls, the medicines in the rectangular trough are lifted up by the filling blocks, achieving the purpose of turning the medicines and ensuring that the medicines are dried evenly. This effectively avoids the problem of existing medicine drying devices that use spiral stirring plates to lift the tablets to a high place and then let them fall down repeatedly. However, the falling of the tablets from a high place may damage the surface of the tablets, causing the outer layer of powder to fall off, resulting in a reduction in the weight of each tablet and a decrease in efficacy. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall external structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the lifting plate structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the overall bottom view of the present invention.

[0017] In the diagram: 1. Drying device; 2. Dust cover; 3. Support column; 4. Connecting flange; 5. Feed hopper; 6. Screening mesh; 7. Through hole; 8. Rotary butterfly valve; 9. Feeding pipe; 10. Slide rail; 11. Electrically controlled slider; 12. Connecting plate; 13. Lifting plate; 14. Rectangular groove; 15. Filling block; 16. Connecting strip. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] To address the problem in existing pharmaceutical drying devices that use spiral stirring plates to ensure uniform drying, where tablets are lifted to a height and then repeatedly dropped, this process can cause damage to the tablet surface, resulting in the loss of the outer layer of powder, reduced tablet weight, and decreased efficacy. This embodiment provides the following technical solution:

[0020] A drying apparatus for tablet manufacturing includes a drying device 1, a slide rail 10 disposed on the inner wall of the drying device 1, an electrically controlled slider 11 disposed within the slide rail 10, and a connecting plate 12 disposed on the electrically controlled slider 11. A lifting plate 13 is disposed at the lower end of the connecting plate 12, and a rectangular groove 14 is formed on the lifting plate 13. A feeding pipe 9 is disposed at the lower end of the drying device 1, and filling blocks 15 are disposed on the inner wall of the feeding pipe 9 at corresponding positions of the rectangular groove 14. A connecting strip is disposed at the feeding port position of the lifting plate 13. 16. A support column 3 is provided at the lower end of the drying device 1, a rotary butterfly valve 8 is provided at the lower end of the feeding pipe 9, a feeding hopper 5 is provided at the lower end of the outer surface of the feeding pipe 9, the feeding hopper 5 is bolted to the feeding pipe 9, a screening screen 6 is provided on the upper outer surface of the feeding hopper 5, the screening screen 6 is bolted to the feeding hopper 5, a through hole 7 is provided at the lower end of the feeding hopper 5, a dust cover 2 is provided at the upper end of the drying device 1, the dust cover 2 is connected to the drying device 1 by a rotating hinge, and a connecting flange 4 is provided at the lower end of the support column 3, the connecting flange 4 is welded to the support column 3;

[0021] In this embodiment, please refer to Figures 1-3 A slide rail 10 is installed on the inner wall of the drying device 1. An electrically controlled slider 11 is installed inside the slide rail 10. A connecting plate 12 is installed on the electrically controlled slider 11. A lifting plate 13 is installed at the lower end of the connecting plate 12. A rectangular groove 14 is opened on the lifting plate 13. A feed pipe 9 is installed at the lower end of the drying device 1. A filling block 15 is installed at the corresponding position of the rectangular groove 14 on the feed pipe 9. A connecting strip 16 is installed at the corresponding position of the feed port on the lifting plate 13. When the medicine is placed in the inner wall of the drying device 1 for drying, the medicine will... The medicine falls onto the lifting plate 13, and the electrically controlled slider 11 moves up and down within the slide rail 10, causing the lifting plate 13 to move up and down along with the medicine. Some medicine falls into the rectangular trough 14. When the lifting plate 13 falls, the medicine in the rectangular trough 14 is lifted up by the filling block 15, achieving the purpose of turning the medicine so that it dries evenly. After drying, the tablets are opened by the rotary butterfly valve 8, and the dried tablets fall into the feed hopper 5. The loose powder passes through the screen 6 and then falls into the feed hopper 5 through the through hole 7. The intact tablets fall out from one end of the feed hopper 5.

[0022] Working principle: A slide rail 10 is installed on the inner wall of the drying device 1. An electrically controlled slider 11 is installed inside the slide rail 10. A connecting plate 12 is installed on the electrically controlled slider 11. A lifting plate 13 is installed at the lower end of the connecting plate 12. A rectangular groove 14 is opened on the lifting plate 13. A feed pipe 9 is installed at the lower end of the drying device 1. A filling block 15 is installed at the corresponding position of the rectangular groove 14 on the feed pipe 9. A connecting strip 16 is installed at the corresponding position of the feed port on the lifting plate 13. When the medicine is placed in the inner wall of the drying device 1 for drying, the medicine will be dried due to gravity. As the medicine falls onto the lifting plate 13, the electrically controlled slider 11 moves up and down within the slide rail 10, causing the lifting plate 13 to move the medicine up and down. Some medicine falls into the rectangular trough 14. When the lifting plate 13 falls, the medicine in the rectangular trough 14 is lifted up by the filling block 15, achieving the purpose of turning the medicine so that the medicine is dried evenly. After drying, the tablets are opened by the rotary butterfly valve 8, and the dried tablets fall into the feed hopper 5. The scattered powder will pass through the screening screen 6 and then fall into the feed hopper 5 from the through hole 7. The intact tablets fall out from one end of the feed hopper 5.

[0023] 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.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drying device for tablet pharmaceutical production, comprising a drying device (1), wherein a slide rail (10) is provided on the inner wall of the drying device (1), and an electrically controlled slider (11) is provided inside the slide rail (10). Its features are: It also includes a connecting plate (12), which is set on the electrically controlled slider (11). A lifting plate (13) is set at the lower end of the connecting plate (12). A rectangular groove (14) is opened on the lifting plate (13). A feeding pipe (9) is set at the lower end of the drying device (1). A filling block (15) is set on the inner wall of the feeding pipe (9) at the corresponding position of the rectangular groove (14). A connecting strip (16) is set at the feeding port position of the lifting plate (13). A support column (3) is set at the lower end of the drying device (1). A rotary butterfly valve (8) is set at the lower end of the feeding pipe (9).

2. The drying apparatus for tablet pharmaceutical production according to claim 1, characterized in that: The lower end of the outer surface of the feeding pipe (9) is provided with a feeding hopper (5), and the feeding hopper (5) is bolted to the feeding pipe (9).

3. A drying apparatus for tablet pharmaceutical production according to claim 2, characterized in that: A screening screen (6) is provided on the outer surface of the upper end of the feeding hopper (5), and the screening screen (6) is bolted to the feeding hopper (5).

4. A drying apparatus for tablet pharmaceutical production according to claim 3, characterized in that: The lower end of the hopper (5) is provided with a through hole (7).

5. A drying apparatus for tablet pharmaceutical production according to claim 1, characterized in that: The upper end of the drying device (1) is provided with a dust cover (2), and the dust cover (2) is connected to the drying device (1) by a rotating hinge.

6. A drying apparatus for tablet pharmaceutical production according to claim 1, characterized in that: The lower end of the support column (3) is provided with a connecting flange (4), and the connecting flange (4) is welded to the support column (3).

Citation Information

Patent Citations

  • Drying device for tablet medicine production

    CN219735844U