Tablet filling device and powder cleaning mechanism

Abstract

The application belongs to the field of medical equipment and discloses a tablet filling device and a medicine powder cleaning mechanism. The device comprises two half structures, each of which comprises an arc-shaped groove and an arc-shaped part. The vertical section of the arc-shaped groove is U-shaped, and the arc-shaped part is connected to the top of the outer edge of the arc-shaped groove. The two arc-shaped grooves are detachably connected, and at this time, the two arc-shaped grooves form a ring-shaped groove. The ring-shaped groove is internally provided with a ring-shaped connecting part formed by the inner edges of the two arc-shaped grooves. The two arc-shaped parts form an expanded part at the top of the ring-shaped groove. The ring-shaped groove is sleeved on the connecting column of the externally provided tablet filling device through the ring-shaped connecting part. In the application, the medicine powder falling from the gap of the spring-type pipeline can be blocked by the expanded part and guided into the ring-shaped groove for collection. When cleaning, the connection between the two half structures only needs to be removed, which is convenient to disassemble and clean during work.

Description

Technical Field

[0001] This application belongs to the field of medical equipment, specifically a tablet filling device and a powder cleaning mechanism. Background Technology

[0002] Traditional tablet packaging often involves manual filling of blister packs, which is inefficient, labor-intensive, and prone to problems such as inaccurate dosage and inadequate sealing, affecting drug quality and safety. Therefore, with the development of the pharmaceutical industry and the increasing automation of drug packaging, many companies have begun to use tablet filling devices. These devices automatically fill and sort tablets into blister packs, and then complete the packaging process through subsequent steps.

[0003] CN210140011U discloses a pill output mechanism, including a support, a hopper mounted on the support, and a guiding unit disposed at the outlet of the hopper. The end of the guiding unit is provided with a discharge hole. The discharge hole and an external processing mechanism for receiving pills are connected by a pipe, which is a cylindrical spring. When the cylindrical spring is connected between the discharge hole and the external processing mechanism, the gap on the cylindrical spring is less than or equal to the thickness of the pill.

[0004] The above technical solution uses a cylindrical spring as the pill feeding channel, which can convert the potential energy generated during the pill's descent into the expansion force of the cylindrical spring, reducing the speed of the pill when it falls to the processing mechanism and preventing pill breakage.

[0005] Similarly, CN219313908U discloses a capsule filling and sorting device, which includes a platform, a capsule plate that moves along the length of the platform, a cover, a sorting device, and a feeding device. The cover is hinged to the platform, the sorting device is installed inside the cover and located above the capsule plate, and the feeding device is connected to the outside of the platform. The device is characterized by further including a spring-type pipe. The top of the cover has a through hole, and a connecting post communicating with the through hole is provided in the through hole. One end of the spring-type pipe is fixedly connected to the feeding device, and the other end of the spring-type pipe is fixedly connected to the connecting post.

[0006] The above technical solution adopts a top-feeding method with a protective cover, which can ensure that the capsules can enter the sorting device smoothly. It uses a spring-type pipe, which can remove powder and dust from the surface of the capsules from the gaps in the spring when the capsules fall and collide with the spring-type pipe. It can also reduce the vibration of the pipe caused by the sorting device during operation.

[0007] Spring-loaded tubes are widely used for feeding tablets and pills. They can reduce the speed at which pills descend to the processing mechanism and prevent pill breakage. However, due to the large gaps in the spring-loaded tubes, collisions between pills and between pills and the spring-loaded tubes can cause some powder on the pills to detach and accumulate on the protective cover. If cleaning is performed during operation, the powder is likely to fall onto the conveying blister pack. Therefore, cleaning is usually done after the machine is stopped. Utility Model Content

[0008] The purpose of this application is to solve the above-mentioned problems and provide a powder cleaning mechanism for a tablet filling device. This powder cleaning mechanism consists of two halves. Two arc-shaped grooves on the two halves form an annular groove, and two arc-shaped portions on the two halves form flared openings. Powder falling from the gaps in the spring-loaded pipe can be blocked by the flared openings and guided into the annular groove for easy collection. During cleaning, only the connection between the two halves needs to be disassembled, making disassembly and assembly convenient and allowing cleaning to be performed during operation. This application also provides a tablet filling device incorporating this powder cleaning mechanism.

[0009] To achieve the above objectives, this application provides the following technical solution:

[0010] A powder cleaning mechanism for a tablet filling device includes two half-structures. Each half-structure includes an arc-shaped groove and an arc-shaped part. The vertical cross-section of the arc-shaped groove is U-shaped, and the arc-shaped part is connected to the top of the outer edge of the arc-shaped groove. The two arc-shaped grooves can be detachably connected, forming an annular groove. The annular groove has an annular connecting part formed by the inner edges of the two arc-shaped grooves. The two arc-shaped parts form a flared part at the top of the annular groove. The annular groove is sleeved on the connecting post of an external tablet filling device through the annular connecting part.

[0011] Preferably, the two arc-shaped grooves are detachably connected by magnetic attraction.

[0012] Preferably, the top of the inner edge of each of the two arc-shaped grooves is provided with an inclined guide portion, and the two guide portions form an annular guide plate for blocking the top of the connecting column, the inner diameter of the annular guide plate being the same as the inner diameter of the connecting column.

[0013] Preferably, it further includes a baffle and a connecting plate. The baffle is arranged horizontally, and the connecting plate is connected to the bottom of the baffle and located in the middle of the baffle. There are two connecting plates and two baffles. The two connecting plates are respectively connected to the two ends of one of the arc grooves, and the side of the connecting plate is flush with the end face of the arc groove. When the two arc grooves are connected, the two ends of the baffle are respectively located in the two arc grooves.

[0014] Preferably, in the half-structure, the arc-shaped part, the arc-shaped groove, and the guide part are integrally formed.

[0015] Meanwhile, this application also provides a tablet filling device, including a platform, a cover, a sorting device, a feeding device, and a powder cleaning mechanism for the tablet filling device. The cover is hinged to the platform, the sorting device is installed inside the cover and located above the platform, the feeding device is located on the outside of the platform, and it also includes a spring-type pipe. The top of the cover has a through hole, and a connecting post communicating with the through hole is provided in the through hole. One end of the spring-type pipe is connected to the feeding device, and the other end of the spring-type pipe is connected to the connecting post. The annular groove is sleeved on the connecting post of the external tablet filling device through an annular connecting part.

[0016] Preferably, the feeding device includes a support platform set on the outside of the platform, an electromagnetic vibrating feeder set on the support platform, and a feeding hopper set on the support platform. The electromagnetic vibrating feeder is equipped with a conveying disc, the discharge end of the feeding hopper is located above the conveying disc, both ends of the conveying disc are closed, the conveying disc is equipped with a feeding hole, and one end of the spring-type pipe is connected to the feeding hole.

[0017] Compared with the prior art, the beneficial effects of this application are:

[0018] This application consists of two halves of the structure. The two arc-shaped grooves on the two halves form an annular groove, and the two arc-shaped parts on the two halves form a flared part. The powder falling from the gap of the spring-type pipe can be blocked by the flared part and guided into the annular groove for easy collection. During cleaning, it is only necessary to disassemble the connection between the two halves of the structure. It is easy to disassemble and assemble and can be cleaned during operation. Attached Figure Description

[0019] Figure 1 This is a perspective view of the powder cleaning mechanism in Example 1;

[0020] Figure 2 This is an exploded view of the powder cleaning mechanism in Example 1;

[0021] Figure 3 This is a front view of the powder cleaning mechanism in Example 1;

[0022] Figure 4 This is a perspective view of the tablet filling device of Example 2 (with the spring-loaded tubing removed);

[0023] Figure 5 This is a front view of the tablet filling device of Example 2;

[0024] Figure 6 yes Figure 5 AA section view;

[0025] Figure 7 yes Figure 5 CC section view;

[0026] Figure 8 This is a schematic diagram of the powder cleaning mechanism and connecting column of the tablet filling device in Example 2;

[0027] The labels for each item are as follows:

[0028] Half structure 1; platform 2; cover 3; sorting device 4; feeding device 5; spring-loaded pipe 6; connecting column 7; arc-shaped part 11; arc-shaped groove 12; guide part 13; connecting plate 14; baffle 15; drive mechanism 41; connecting shaft 42; tray 43; large gear 44; multiple small gears 45; connecting rod 46; cleaning brush 47; support platform 51; electromagnetic vibrating feeder 52; feeding hopper 53; conveying disc 521; feeding hole 522; annular groove A; flared part B; annular connecting part C; first magnet D; annular guide plate E; blister sheet F. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0030] Example 1

[0031] refer to Figures 1-3 A powder cleaning mechanism for a tablet filling device includes two half-structures 1. Each half-structure 1 includes an arc-shaped groove 12 and an arc-shaped part 11. The vertical cross-section of the arc-shaped groove 12 is U-shaped. The arc-shaped part 11 is connected to the top of the outer edge of the arc-shaped groove 12. The two arc-shaped grooves 12 can be detachably connected. At this time, the two arc-shaped grooves 12 form an annular groove A. The annular groove A is provided with an annular connecting part C formed by the inner edges of the two arc-shaped grooves 12. The two arc-shaped parts 11 form a flared part B at the top of the annular groove A. The annular groove A is sleeved on the connecting post 7 of the external tablet filling device through the annular connecting part C.

[0032] It should be noted that the powder cleaning mechanism of this application is applicable to tablet filling devices using spring-loaded pipes 6.

[0033] In this design, the two arc-shaped grooves 12 form an annular connecting part C by overlapping their ends. After the two arc-shaped grooves 12 are connected, the arc-shaped part 11 located on the outer edge of the arc-shaped groove 12 can also form a flared part B by overlapping its ends. In the vertical projection of the assembled structure, the powder cleaning mechanism is funnel-shaped. The powder cleaning mechanism is sleeved on the connecting post 7 of the external tablet filling device through the annular connecting part C, and a part of the spring-type pipe 6 is located inside the flared part B. It should be noted that if the spring-type pipe 6 is curved, then the bending area of ​​the spring-type pipe 6 should also be located inside the flared part B.

[0034] After installation, during the feeding process of the tablets through the spring-loaded pipe 6, collisions and friction between the tablets and between the tablets and the spring-loaded pipe 6 are unavoidable. These collisions and frictions will wear away the powder on the tablets, and the powder will fall into the gaps of the spring-loaded pipe 6. The flared part B can block the flying powder and guide it to the annular groove A for collection. The annular groove A can also collect most of the fallen powder, preventing the powder from accumulating on the protective cover.

[0035] When replacement is needed, simply disassemble the two connected arc-shaped grooves 12 to separate the two halves of the structure 1 and remove the cleaning mechanism. The operator can then empty the powder in the arc-shaped grooves 12 or replace it with a new cleaning mechanism.

[0036] In this embodiment, the two arc-shaped grooves 12 are detachably connected by magnetic attraction. To illustrate the magnetic attraction more clearly, since the vertical cross-section of the arc-shaped groove 12 is U-shaped, it has two ends at one end, namely the first end and the second end, and the other end is also the third end and the fourth end. The corresponding first ends on the two arc-shaped grooves 12 should be attracted to each other, that is, the corresponding first ends on the two arc-shaped grooves 12 are respectively provided with a first magnet D and a second magnet (not shown in the figure), and the first magnet D and the second magnet are attracted to each other. The second end, the third end and the fourth end are the same, and can be referred to the arrangement of the first end.

[0037] In this embodiment, the top of the inner edge of each of the two arc-shaped grooves 12 is provided with an inclined guide portion 13. The two guide portions 13 form an annular guide plate E for blocking the top of the connecting column 7. The inner diameter of the annular guide plate E is the same as the inner diameter of the connecting column 7.

[0038] In practical use, the function of the annular guide plate E is to prevent the powder from falling onto the top of the connecting post 7. Specifically, by connecting one end of the guide part 13 to the top of the inner edge of the arc groove 12, after assembly, the two guide parts 13 form an annular guide plate E for shielding the top of the connecting post 7. The inner ring of the annular guide plate E extends obliquely upward toward the connecting post 7 and is located above the connecting post 7 to shield the connecting post 7.

[0039] Preferably, it further includes a baffle 15 and a connecting plate 14. The baffle 15 is arranged horizontally, and the connecting plate 14 is connected to the bottom of the baffle 15 and located in the middle of the baffle 15. There are two connecting plates 14 and two baffles 15. The two connecting plates 14 are respectively connected to the two ends of one of the arc grooves 12, and the side of the connecting plate 14 is flush with the end face of the arc groove 12. When the two arc grooves 12 are connected, the two ends of the baffle 15 are respectively located in the two arc grooves 12.

[0040] Specifically, the baffle 15 is used to shield the connection between the two halves, specifically the ends where the two arc-shaped grooves 12 connect. Since the arc-shaped grooves 12 are used to collect powder, if the powder is piled up in a mountain shape at the connection between the two arc-shaped grooves 12, it is easy for the powder to collapse and fall onto the protective cover during disassembly. With the addition of the baffle 15, the baffle 15 can shield the connection between the two arc-shaped grooves 12 from the top, preventing the powder from accumulating at the connection between the two arc-shaped grooves 12.

[0041] It should be noted that the installation and disassembly methods will change after the addition of the baffle 15. Specifically, because the structure of the baffle 15 matches the structure of the arc groove 12, it is difficult to combine the two halves of the structure by using horizontal opposing movement. Therefore, during installation, the half of the structure without the baffle needs to be placed in the designated position first, and then the half of the structure with the baffle is installed. The baffle 15 is first positioned at the arc part 11 of the half of the structure in the preset position, and then the two halves are magnetically joined by a downward movement.

[0042] Furthermore, in the half-structure 1, the arc-shaped part 11, the arc-shaped groove 12, and the guide part 13 are integrally formed. Integral forming can reduce the seams between parts and is more stable.

[0043] Example 2

[0044] refer to Figures 4-8 A tablet filling device includes a platform 2, a cover 3, a sorting device 4, a feeding device 5, and a powder cleaning mechanism of the tablet filling device of Example 1. The cover 3 is hinged to the platform 2. The sorting device 4 is installed inside the cover 3 and located above the platform 2. The feeding device 5 is located on the outside of the platform 2. The device also includes a spring-type pipe 6. The top of the cover 3 is provided with a through hole. A connecting post 7 communicating with the through hole is provided in the through hole. One end of the spring-type pipe 6 is connected to the feeding device 5, and the other end of the spring-type pipe 6 is connected to the connecting post 7. The annular groove A is sleeved on the connecting post 7 of the external tablet filling device through an annular connecting part C.

[0045] It should be noted that there is also a blister pack F on platform 2. The blister pack F moves forward intermittently under the drive of the subsequent mechanism. For details, please refer to Chinese patent CN219524307U. During the forward movement of the blister pack F, it will pass through the sorting device 4. The feeding device 5 will transport the tablets to the cover 3 through the spring-type pipe 6, and the sorting device 4 will realize the automatic filling of the tablets into the blister pack F.

[0046] After adopting the powder cleaning mechanism of Example 1, the powder falling from the gap of the spring-type pipe 6 can be blocked by the flared part B and guided into the annular groove A for easy collection. During cleaning, it is only necessary to disassemble the connection between the two halves of the structure 1, which is convenient for disassembly and assembly and can be cleaned during operation.

[0047] The sorting device 4 is existing technology, specifically including a drive mechanism 41, a connecting shaft 42, a tray 43, a large gear 44, multiple small gears 45, a connecting rod 46, and a cleaning brush 47. The drive mechanism 41 is connected to the protective cover, the connecting shaft 42 is driven by the drive mechanism 41, and its other end is connected to the tray 43. The large gear 44 is connected to the connecting shaft 42. The drive mechanism 41 can drive the connecting shaft 42, the tray 43, and the large gear 44 to rotate synchronously. The connecting column 7 is connected to the small gears 45, and the small gears 45 are rotatably connected to the tray 43 through the connecting column 7, arranged around the large gear 44, and meshing with the large gear 44. The cleaning brush 47 is connected to the other end of the connecting rod 46. The large gear 44 and the multiple small gears 45 form a planetary gear. When the connecting shaft 42 rotates, the small gears 45 can rotate around the large gear 44. Under the action of meshing, the small gears 45 can also rotate on their own to fill and sort the tablets. The drive mechanism 41 can be a drive motor.

[0048] In this embodiment, the feeding device 5 includes a support platform 51 set on the outside of the platform 2, an electromagnetic vibrating feeder 52 set on the support platform 51, and a feeding hopper 53 set on the support platform 51. The electromagnetic vibrating feeder 52 is provided with a conveying disc 521. The discharge end of the feeding hopper 53 is located above the conveying disc 521. Both ends of the conveying disc 521 are closed. The conveying disc 521 is provided with a feeding hole 522. One end of the spring-type pipe 6 is connected to the feeding hole 522.

[0049] The electromagnetic vibrating feeder 52 is existing technology; for details, please refer to the technical solution of Chinese Patent CN209834801U. The operator adds tablets to the feeding hopper 53, which guides the tablets onto the conveyor disc 521. By driving the conveyor disc 521 to vibrate, the tablets are conveyed to the feeding hole 522. Specifically, the conveyor disc 521 is the feeding trough described in the technical solution of Chinese Patent CN209834801U.

[0050] Regarding the connection method between the spring-type pipe 6, the connecting post 7, and the discharge hole 522, an encapsulation method can be adopted, that is, the end of the spring-type pipe 6 is embedded in the connecting post 7 and the discharge hole 522. Specifically, the spring-type pipe 6 can be encapsulated during injection molding. Alternatively, a snap-fit ​​method can be adopted, that is, both the connecting post 7 and the discharge hole 522 are provided with a snap-fit ​​groove that matches the spiral shape of the spring-type pipe 6 for snap-fitting with the spring-type pipe 6.

[0051] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A powder cleaning mechanism of a tablet filling apparatus, characterized by comprising: The device comprises two halves, each half consisting of an arc-shaped groove and an arc-shaped portion. The vertical cross-section of the arc-shaped groove is U-shaped, and the arc-shaped portion is connected to the top of the outer edge of the arc-shaped groove. The two arc-shaped grooves can be detachably connected, forming an annular groove. The annular groove has an annular connecting portion formed by the inner edges of the two arc-shaped grooves, and the two arc-shaped portions form a flared portion at the top of the annular groove. The annular groove is sleeved onto the connecting post of an external tablet filling device through the annular connecting portion.

2. The medicine powder cleaning mechanism of the tablet filling apparatus according to claim 1, wherein The two arc-shaped grooves are detachably connected by magnetic attraction.

3. The powder cleaning mechanism of the tablet filling device according to claim 1, characterized in that, The top of the inner edge of each of the two arc-shaped grooves is provided with an inclined guide portion, and the two guide portions form an annular guide plate for blocking the top of the connecting column. The inner diameter of the annular guide plate is the same as the inner diameter of the connecting column.

4. The powder cleaning mechanism of the tablet filling device according to claim 1, characterized in that, It also includes a baffle and a connecting plate. The baffle is arranged horizontally, and the connecting plate is connected to the bottom of the baffle and located in the middle of the baffle. There are two connecting plates and two baffles. The two connecting plates are respectively connected to the two ends of one of the arc-shaped grooves, and the side of the connecting plate is flush with the end face of the arc-shaped groove. When the two arc-shaped grooves are connected, the two ends of the baffle are respectively located in the two arc-shaped grooves.

5. The powder cleaning mechanism of the tablet filling device according to claim 3, characterized in that, In the half-structure, the arc-shaped part, the arc-shaped groove, and the guide part are integrally formed.

6. A tablet filling device, comprising a platform, a protective cover, a sorting device, a feeding device, and a powder cleaning mechanism for the tablet filling device as described in any one of claims 1 to 5, characterized in that, The cover is hinged to the platform. The sorting device is installed inside the cover and located above the platform. The feeding device is located on the outside of the platform. It also includes a spring-loaded pipe. The top of the cover has a through hole. A connecting post communicating with the through hole is provided in the through hole. One end of the spring-loaded pipe is connected to the feeding device. The other end of the spring-loaded pipe is connected to the connecting post. The annular groove is sleeved on the connecting post of the external tablet filling device through the annular connecting part.

7. The tablet filling device according to claim 6, characterized in that, The feeding device includes a support platform on the outside of the platform, an electromagnetic vibrating feeder on the support platform, and a feeding hopper on the support platform. The electromagnetic vibrating feeder is equipped with a conveying disc. The discharge end of the feeding hopper is located above the conveying disc. Both ends of the conveying disc are closed. The conveying disc is equipped with a feeding hole. One end of the spring-type pipe is connected to the feeding hole.

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