Powder scraping device for capsule filling machine
By designing a cone-shaped spiral powder scraping structure in the capsule filling machine, the problems of powder accumulation and loading accuracy are solved, uniform dispersion and stable filling of the powder are achieved, and the accuracy and efficiency of capsule filling are improved.
Patent Information
- Application Number
- CN202421140166.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-23
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-05-23
AI Technical Summary
The intermittent division rotation of the metering plate of the fully automatic capsule filling machine causes the accumulation of medicinal powder in the powder filling plate, affecting the accuracy of the powder filling, forming a dead volume and wasting the powder, which is especially unfavorable to confirm the capsule filling parameters of small batches of medicinal powder.
A powder scraping device for a capsule filling machine is designed, including a conical spiral powder scraping structure between the powder scraping plate and the metering plate. The spiral scraping blade is driven by a rotating device to evenly disperse the powder into the metering plate filling hole.
Effectively prevent the accumulation of powder, maintain a stable filling amount, improve the capsule filling accuracy, and reduce the loss of powder. It is suitable for confirming the capsule filling parameters of small batch powder.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pharmaceutical equipment, in particular to a powder scraping device for a capsule filling machine. Background Art
[0002] New compound synthesis and formulation development are two important links in drug research and development. With the in-depth study of drug targets, designing and synthesizing drug molecules based on drug targets has become a trend in drug research and development. Drug molecule design that prioritizes efficacy and drug targets is usually accompanied by poor physical properties of the final candidate drug powder, such as poor powder fluidity, easy electrostatic adsorption, and poor solubility. These pose considerable challenges to its formulation development research.
[0003] Solid preparations, especially capsules, are the preferred choice for many API preparation developments due to their good physical and chemical stability, simple process and low cost. The fully automatic capsule filling machine integrates machinery, electricity and gas, adopts a microcomputer programmable controller and touch panel operation, and completes the capsule filling by intermittent indexing rotation of the capsule filling turntable to achieve the processes of sowing capsules, dividing capsules, quantitative filling of drugs, rejecting and locking. The equipment has sensitive movements, accurate filling and metering, and is easy to operate. It can effectively reduce labor intensity and meet GMP specifications. It can meet the capsule preparation needs from research and development to GMP production.
[0004] However, the intermittent indexing rotation of the metering plate of the fully automatic capsule filling machine will cause the powder to accumulate in the middle of the powder plate, which is high in the middle and low around. The powder on the top of the powder plate is not level, affecting the accuracy of the powder filling. The accumulated powder in the middle cannot flow to the hole of the metering plate, forming a dead volume, wasting powder, which is especially not conducive to the confirmation of capsule filling parameters for small batches of powder. Utility Model Content
[0005] In order to solve the problems existing in the prior art, at least one embodiment of the utility model provides a powder scraping device for a capsule filling machine, which can evenly disperse the medicine powder accumulated in the powder holding tray into the filling hole of the metering tray, prevent the medicine powder from accumulating, and maintain a stable filling amount.
[0006] The embodiment of the utility model proposes a powder scraping device for a capsule filling machine, comprising a powder scraping plate and a metering disk, the metering disk being provided with a metering disk hole, a rotating device, a rotating shaft and a powder scraping device body having a structure that is narrow at the top and wide at the bottom, the powder scraping device body being connected to the rotating end of the rotating device through the rotating shaft, the powder scraping device body being arranged between the powder scraping plate and the metering disk, and the powder scraping device body being provided with a spiral scraper.
[0007] In some embodiments, the utility model provides a powder scraping device for a capsule filling machine, wherein the body of the powder scraping device is in a conical structure, and the bottom of the body of the powder scraping device faces the metering disk.
[0008] In some embodiments, the utility model provides a powder scraping device for a capsule filling machine, wherein the spiral scraper extends spirally from bottom to top along the surface of the powder scraping device body.
[0009] In some embodiments, the utility model provides a powder scraping device for a capsule filling machine, wherein the angle between the spiral scraper and the surface of the powder scraping device body is 15-30 degrees.
[0010] In some embodiments, the utility model provides a powder scraping device for a capsule filling machine, wherein one end of a rotating shaft is connected to the bottom center of a body of the powder scraping device, and the other end of the rotating shaft is connected to the rotating end of the rotating device.
[0011] In some embodiments, the utility model provides a powder scraping device for a capsule filling machine, wherein both ends of the rotating shaft are respectively provided with a rotating shaft tenon, and the bottom of the powder scraping device body and the rotating end of the rotating device are provided with a mortise corresponding to the rotating shaft tenon and an embedding groove corresponding to the rotating shaft, the rotating shaft tenon is embedded in the mortise, and the rotating shaft is embedded in the embedding groove.
[0012] In some embodiments, the utility model provides a powder scraping device for a capsule filling machine, wherein the rotating shaft tenon is a cylindrical structure, and the rotating shaft tenon is connected to the rotating shaft along the axial direction of the rotating shaft.
[0013] In some embodiments, the utility model provides a powder scraping device for a capsule filling machine, which also includes a bolt whose length is greater than the rotating shaft, a threaded through hole corresponding to the screw rod of the bolt is provided in the rotating shaft, a threaded hole corresponding to the screw rod of the bolt is provided at the rotating end of the rotating device, and the bolt passes through the top of the powder scraping device body and is connected with the threaded through hole and the threaded hole.
[0014] In some embodiments, the utility model provides a powder scraping device for a capsule filling machine, which also includes a sleeve with a hollow cylindrical structure, the inner diameter of the sleeve is larger than the screw rod of the bolt, the sleeve is arranged at one end of the rotating shaft, and the sleeve is provided with a sleeve tenon corresponding to the tenon of the rotating shaft.
[0015] In some embodiments, the utility model provides a powder scraping device for a capsule filling machine, which also includes a gasket with a hollow cylindrical structure, the inner diameter of the gasket is larger than the screw rod of the bolt, the gasket is arranged at one end of the rotating shaft, and the gasket is provided with a gasket tenon corresponding to the tenon of the rotating shaft.
[0016] It can be seen that the powder scraping device for a capsule filling machine in an embodiment of the utility model has a simple structure and is easy to disassemble and clean by setting a conical spiral powder scraping structure between the powder scraping plate and the metering disk. When the motor drives the spiral powder scraping structure to rotate, the medicine powder accumulated in the powder holding disk can be evenly dispersed into the filling hole of the metering disk, thereby preventing the accumulation of medicine powder and maintaining a stable filling amount. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0018] Figure 1 It shows a schematic structural diagram of a powder scraping device for a capsule filling machine in an embodiment of the utility model;
[0019] Figure 2 Shown is a schematic structural diagram of the powder scraping device body in an embodiment of the utility model;
[0020] Figure 3 It is a schematic diagram showing the structure of the rotating shaft in the embodiment of the present utility model.
[0021] The reference numerals in the accompanying drawings of the specification are as follows:
[0022] Measuring disk 1, measuring disk hole 11, rotating shaft 2, rotating shaft tenon 21, threaded through hole 22, powder scraping device body 3, spiral scraper 31, mortise 32, embedding groove 33, bolt 4. Specific implementation plan
[0023] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. In this article, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.
[0025] The inventor of this solution found that in the prior art, the intermittent indexing rotation of the metering disk of the fully automatic capsule filling machine will cause the accumulation of powder in the middle of the powder tray, which is high in the middle and low around. The powder at the top of the powder tray is not level, affecting the accuracy of the powder filling. The accumulated powder in the middle cannot flow to the hole of the metering disk, forming a dead volume, wasting powder, and is particularly not conducive to the work of confirming the capsule filling parameters of small batches of powder. This embodiment provides the following solution:
[0026] like Figures 1 to 3 As shown, this embodiment provides a powder scraping device for a capsule filling machine, including a powder scraping plate and a metering disk 1, the metering disk 1 is provided with a metering disk hole 11, and also includes a rotating device, a rotating shaft 2 and a powder scraping device body 3 with a narrow upper and wide lower structure, the powder scraping device body 3 is connected to the rotating end of the rotating device through the rotating shaft 2, the powder scraping device body 3 is arranged between the powder scraping plate and the metering disk 1, and the powder scraping device body 3 is provided with a spiral scraper 31.
[0027] It should be noted that when the rotating device rotates, the rotating shaft 2 is driven to rotate, and when the rotating shaft 2 rotates, the powder scraping device body 3 is driven to rotate, so that the spiral scraper 31 can continuously or intermittently scrape the powder and discharge it to the metering disk hole 11, breaking up and dispersing the powder originally deposited at the center bottom of the metering disk 1, improving the capsule filling accuracy, reducing the loss of powder, and improving the capsule filling yield. The spiral structure of the spiral scraper 31 has a large surface area, and the risk of powder stratification in the powder bed can be reduced by the strong rotation and scraping of the rotating device. It is especially suitable for filling powder capsules with too thick metering disks, which can improve the problem of large differences in filling amount. After the powder is filled into the capsule, the powder will not be columnar or have low columnar density, and will not delay the disintegration and release of the capsule.
[0028] Specifically, the rotating device is a motor, the powder scraping device body 3 is a conical structure, the bottom of the powder scraping device body 3 faces the metering disk 1, for example, the bottom diameter of the powder scraping device body 3 is 120mm, and the height is 60mm. The spiral scraper 31 spirally extends from bottom to top along the surface of the powder scraping device body 3, and the angle between the spiral scraper 31 and the surface of the powder scraping device body 3 is 15-30 degrees. For example, the width of the spiral scraper 31 is 10mm, and the thickness is 1.5-2mm.
[0029] One end of the rotating shaft 2 is connected to the bottom center of the powder scraping device body 3, and the other end of the rotating shaft 2 is connected to the motor shaft of the motor. The rotating shaft 2 is provided with a rotating shaft tenon 21 at both ends, and the bottom of the powder scraping device body 3 and the motor shaft of the motor are provided with a mortise 32 corresponding to the rotating shaft tenon 21 and an embedding groove 33 corresponding to the rotating shaft 2. The rotating shaft tenon 21 is embedded in the mortise 32, and the rotating shaft 2 is embedded in the embedding groove 33. The rotating shaft tenon 21 is a cylindrical structure, and the rotating shaft tenon 21 is connected to the rotating shaft 2 along the axial direction of the rotating shaft 21.
[0030] For example, the inner diameter of the rotating shaft 2 is 10 mm, the outer diameter of the portion where the upper end of the rotating shaft 2 is connected to the rotating shaft tenon 21 is 17 mm, the length is 80 mm, and the diameter of the rotating shaft tenon 21 at this location is 3 mm, and the height is 60 mm. The outer diameter of the portion where the lower end of the rotating shaft 2 is connected to the rotating shaft tenon 21 is 17 mm, the length is 80 mm, and the diameter of the rotating shaft tenon 21 at this location is 3 mm, and the height is 30 mm.
[0031] Furthermore, the scraper device also includes a bolt 4 whose length is greater than the rotating shaft 2, a threaded through hole 22 corresponding to the screw rod of the bolt is provided in the rotating shaft 2, and a threaded hole corresponding to the screw rod of the bolt 4 is provided in the motor shaft of the motor, and the bolt 4 passes through the top of the scraper device body 3 and is connected with the threaded through hole 22 and the threaded hole.
[0032] It is understandable that one end of the bolt 4 passes through the top of the scraper body 3 and the threaded through hole 22 and is screwed into the threaded hole of the motor shaft, so that the scraper body 3, the rotating shaft 2 and the motor shaft are further fixed, increasing the stability of the entire device and preventing loosening during rotation. This structure is convenient for disassembly and is conducive to later maintenance. For example, the diameter of the screw of the bolt 4 is 10 mm and the length is 125 mm.
[0033] Furthermore, the powder scraping device also includes a sleeve in a hollow cylindrical structure, the inner diameter of the sleeve is larger than the screw rod of the bolt 4, the sleeve is arranged at one end of the rotating shaft 2, and the sleeve is provided with a sleeve tenon corresponding to the rotating shaft tenon 21.
[0034] It should be noted that the sleeve can be sleeved on the bolt 4, so that the position between the scraper body 3 and the metering disk 1 can be adjusted, that is, one end of the bolt 4 passes through the top of the scraper body 3, the sleeve, and the threaded through hole 22 in sequence and is screwed into the threaded hole of the motor shaft. For example, the outer diameter of the sleeve is 17mm, the inner diameter is 10mm, and the length is 20mm; the diameter of the sleeve tenon is 3mm and the height is 20mm.
[0035] Furthermore, the powder scraping device also includes a gasket in a hollow cylindrical structure, the inner diameter of the gasket is larger than the screw of the bolt 4, the gasket is arranged at one end of the rotating shaft 2, and the gasket is provided with a gasket tenon corresponding to the rotating shaft tenon 21.
[0036] It should be noted that the gasket can be sleeved on the bolt 4 to fine-tune the position between the powder scraping device body 3 and the metering disk 1. That is, one end of the bolt 4 passes through the top of the powder scraping device body 3, the gasket, the threaded through hole 22 in sequence and is screwed into the threaded hole of the motor shaft. For example, the outer diameter of the gasket is 17mm, the inner diameter is 10mm, and the thickness is 1mm or 2mm; the diameter of the gasket tenon is 3mm, and the thickness is the same as that of the gasket.
[0037] In summary, the embodiments of the present invention provide a conical spiral powder scraping structure between the scraper plate and the metering disk, which has a simple structure and is easy to disassemble and clean. When the motor drives the spiral powder scraping structure to rotate, the powder accumulated in the powder holding disk can be evenly dispersed into the filling hole of the metering disk, thereby preventing powder accumulation and maintaining a stable filling amount.
[0038] The above contents are only specific implementation methods of the present application, and the protection scope of the present application is not limited thereto. Those skilled in the art may make changes or substitutions within the technical scope disclosed in the present application, and these changes or substitutions shall be within the protection scope of the present application.
[0039] Those skilled in the art will understand that although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features from different embodiments is meant to be within the scope of the present invention and to form different embodiments.
[0040] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.
Claims
1. A powder scraping device for a capsule filling machine, comprising a powder scraping plate and a metering disk (1), wherein the metering disk (1) is provided with a metering disk hole (11), characterized in that: The invention also comprises a rotating device, a rotating shaft (2), and a powder scraping device body (3) having a structure that is narrow at the top and wide at the bottom. The powder scraping device body (3) is connected to the rotating end of the rotating device via the rotating shaft (2). The powder scraping device body (3) is arranged between the powder scraping plate and the metering disk (1). The powder scraping device body (3) is provided with a spiral scraper (31).
2. The powder scraping device for a capsule filling machine according to claim 1, characterized in that: The powder scraping device body (3) is in a conical structure, and the bottom of the powder scraping device body (3) faces the metering disk (1).
3. The powder scraping device for a capsule filling machine according to claim 2, characterized in that: The spiral scraper (31) spirally extends from bottom to top along the surface of the powder scraping device body (3).
4. The powder scraping device for a capsule filling machine according to claim 3, characterized in that: The angle between the spiral scraper (31) and the surface of the powder scraping device body (3) is 15-30 degrees.
5. The powder scraping device for a capsule filling machine according to claim 1, characterized in that: One end of the rotating shaft (2) is connected to the bottom center of the powder scraping device body (3), and the other end of the rotating shaft (2) is connected to the rotating end of the rotating device.
6. The powder scraping device for capsule filling machine according to claim 5, characterized in that: The two ends of the rotating shaft (2) are respectively provided with rotating shaft tenons (21); the bottom of the powder scraping device body (3) and the rotating end of the rotating device are both provided with mortises (32) corresponding to the rotating shaft tenons (21) and embedding grooves (33) corresponding to the rotating shaft (2); the rotating shaft tenons (21) are embedded in the mortises (32), and the rotating shaft (2) is embedded in the embedding grooves (33).
7. The powder scraping device for a capsule filling machine according to claim 6, characterized in that: The rotating shaft tenon (21) is in a cylindrical structure, and the rotating shaft tenon (21) is connected to the rotating shaft (2) along the axial direction of the rotating shaft (2).
8. The powder scraping device for a capsule filling machine according to claim 6, characterized in that: The device further comprises a bolt (4) having a length greater than that of the rotating shaft (2); a threaded through hole (22) corresponding to the screw rod of the bolt is arranged in the rotating shaft (2); a threaded hole corresponding to the screw rod of the bolt (4) is arranged at the rotating end of the rotating device; the bolt (4) passes through the top of the powder scraping device body (3) and is matched and connected with the threaded through hole (22) and the threaded hole.
9. The powder scraping device for a capsule filling machine according to claim 8, characterized in that: It also includes a sleeve in the form of a hollow cylindrical structure, the inner diameter of the sleeve being larger than the screw rod of the bolt (4), the sleeve being arranged at one end of the rotating shaft (2), and the sleeve being provided with a sleeve tenon corresponding to the rotating shaft tenon (21).
10. The powder scraping device for a capsule filling machine according to claim 8, characterized in that: It also includes a gasket in the form of a hollow cylinder, the inner diameter of the gasket being larger than the screw rod of the bolt (4), the gasket being arranged at one end of the rotating shaft (2), and the gasket being provided with a gasket tenon corresponding to the rotating shaft tenon (21).