A tablet filling device for a flat-bed blister pack machine

Abstract

This application belongs to the field of pharmaceutical equipment and discloses a tablet filling device for a flat-plate blister packaging machine, including a platform, a protective cover, a sorting mechanism, and a tablet conveying mechanism. The top of the protective cover has an open section, which is closed by a top plate. The top plate is set on the top of the protective cover in an overlapping manner. One side of the protective cover has an L-shaped plate, the horizontal section of which is located above the open section. The L-shaped plate has a feed inlet for connecting a spring-loaded pipe, and the feed inlet communicates with a notch. This application improves the structure of the protective cover by setting an open section on the protective cover, which is closed by an overlapping top plate. The feed inlet on the protective cover is moved to the horizontal section of the L-shaped plate. With the notch on the top plate, the top plate will not interfere with the discharge port when it is pulled out of the protective cover. The top plate can be pulled out during operation to clean the accumulated powder on the top plate, or the accumulation of powder can be avoided by replacing the top plate, which is convenient and quick.

Description

Technical Field

[0001] This application belongs to the field of medical equipment, specifically a tablet filling device for a flat blister packaging machine. 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 mounted 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] It is evident that using spring-loaded pipes can not only convert the potential energy generated during the descent of the tablets into the expansion force of the cylindrical springs, reducing the speed of the tablets when they descend to the processing mechanism and preventing tablet breakage, but also alleviate the vibration caused by the equipment during operation. However, due to the large gaps in the spring-loaded pipes, collisions between tablets and between tablets and the spring-loaded pipes can cause some powder on the tablets to detach from the tablets and accumulate on the protective cover. If cleaning is performed during operation, the powder is likely to fall onto the blister pack being conveyed. Therefore, cleaning is generally done after the machine is stopped. Utility Model Content

[0005] The purpose of this application is to provide a tablet filling device for a flat-plate blister packaging machine. This device improves the structure of the protective cover by setting an open part on the protective cover, which is closed by an overlapping top plate. The feed port on the protective cover is moved to the horizontal section of the L-shaped plate. With the notch on the top plate, the top plate will not interfere with the discharge port when it is pulled out of the protective cover. The top plate can be pulled out during operation to clean the accumulated powder on the top plate, or the accumulation of powder can be avoided by replacing the top plate, which is convenient and quick.

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] A tablet filling device for a flat-plate blister packaging machine includes a platform, a protective cover, a sorting mechanism, and a tablet conveying mechanism. The tablet conveying mechanism is located on one side of the platform, and the protective cover is hinged to the platform. The tablet conveying mechanism and the protective cover are connected through a spring-loaded pipe. The sorting mechanism is located inside the protective cover, and the protective cover is provided with a drive mechanism for driving the sorting mechanism to rotate inside the protective cover. The top of the protective cover has an open section, the length of which matches the width of the protective cover. The open section is closed by a top plate, which is set on the top of the protective cover in an overlapping manner. One side of the protective cover has an L-shaped plate, the horizontal section of which is located above the open section. The L-shaped plate has a feed port for connecting the spring-loaded pipe. One end of the top plate along its length has a notch that matches the feed port. When the top plate is connected to the top of the protective cover, the horizontal section of the L-shaped plate fits against the top of the top plate, and the horizontal section of the L-shaped plate covers the notch. The feed port is connected to the notch.

[0008] Preferably, the top of the cover is also provided with a connecting plate, the length of the connecting plate is matched with the width of the cover, the width of the connecting plate is less than the length of the cover, the connecting plate is connected to the top of the cover by bolts, the area not covered by the connecting plate is an open part, and the drive mechanism is connected to the top of the connecting plate.

[0009] Preferably, the sorting mechanism includes a tray, a large gear, multiple small gears, and a cleaning brush. The output end of the drive mechanism passes through the protective cover and is fixedly connected to the tray. The large gear is located on the output end of the drive mechanism and is connected to the output end of the drive mechanism for transmission. The drive mechanism is used to drive the tray and the large gear to rotate synchronously. Multiple small gears are rotatably connected to the tray through a connecting shaft and arranged around the large gear. All of the small gears mesh with the large gear. The cleaning brush is connected to the bottom of the connecting shaft and is located below the tray.

[0010] Preferably, the driving mechanism is a drive motor.

[0011] Preferably, the tablet conveying mechanism includes a support platform on one side of the platform, an electromagnetic vibrating feeder on the support platform, and a hopper on the support platform. The electromagnetic vibrating feeder is equipped with a conveying disc, the discharge end of the hopper is located above the conveying disc, both ends of the conveying disc are closed, the conveying disc is equipped with a discharge hole, and one end of a spring-type pipe is connected to the discharge hole.

[0012] Preferably, the horizontal section of the L-shaped plate is further provided with a connecting pipe, which includes a vertical part and an inclined part. The end of the vertical part is connected to the horizontal section of the L-shaped plate, and the inclined part is used to guide the tablet to the middle of the protective cover.

[0013] Preferably, baffles are also provided on both sides of the top of the top plate.

[0014] Preferably, in the projection onto the horizontal plane, the spring-loaded pipe is located within the area where the top plate is situated.

[0015] Compared with the prior art, the beneficial effects of this application are:

[0016] This application improves the structure of the protective cover by setting an open part on the protective cover, which is closed by an overlapping top plate. The feed port on the protective cover is moved to the horizontal section of the L-shaped plate. With the notch on the top plate, the top plate will not interfere with the discharge port when it is pulled out of the protective cover. The top plate can be pulled out during operation to clean the accumulated powder on the top plate, or the accumulation of powder can be avoided by replacing the top plate, which is convenient and quick. Attached Figure Description

[0017] Figure 1 This is a perspective view of the tablet filling device of Example 1 (with the spring-loaded tubing removed);

[0018] Figure 2 This is a front view of the tablet filling device of Example 1;

[0019] Figure 3 yes Figure 2 AA section view;

[0020] Figure 4 yes Figure 2 BB section view;

[0021] Figure 5 This is one of the perspective views of the protective cover of the tablet filling device in Example 1 (with the top plate removed);

[0022] Figure 6 This is a second perspective view of the protective cover of the tablet filling device in Example 1 (with the L-shaped plate removed);

[0023] The labels for the attached figures are as follows:

[0024] Platform 1; Protective cover 2; Sorting mechanism 3; Tablet conveying mechanism 4; Drive mechanism 21; Top plate 22; L-shaped plate 23; Connecting plate 24; Tray 31; Large gear 32; Small gear 33; Cleaning brush 34; Support platform 41; Electromagnetic vibrating feeder 42; Discharge hopper 43; Notch 221; Baffle 222; Feed inlet 231; Connecting pipe 232; Connecting shaft 331; Conveying disc 421; Discharge hole 422; Spring-type pipe a; Bubble cover b; Output end c; Open part d. Detailed Implementation

[0025] 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.

[0026] Example 1

[0027] refer to Figures 1-6 A tablet filling device for a flat-plate blister packaging machine includes a platform 1, a protective cover 2, a sorting mechanism 3, and a tablet conveying mechanism 4. The tablet conveying mechanism 4 is disposed on one side of the platform 1. The protective cover 2 is hinged to the platform 1. The tablet conveying mechanism 4 and the protective cover 2 are connected through a spring-loaded pipe a. The sorting mechanism 3 is disposed inside the protective cover 2. The protective cover 2 is provided with a drive mechanism 21 for driving the sorting mechanism 3 to rotate inside the protective cover 2. The top of the protective cover 2 has an open portion d, the length of which matches the width of the protective cover 2. The open portion d is sealed by a top plate 22. The top plate 22 is installed on the top of the cover 2 in an overlapping manner. An L-shaped plate 23 is provided on one side of the cover 2. The horizontal section of the L-shaped plate 23 is located above the open part d. The L-shaped plate 23 is provided with an inlet 231 for connecting the spring-type pipe a. One end of the top plate 22 along its length direction is provided with a notch 221 that matches the inlet 231. When the top plate 22 is connected to the top of the cover 2, the horizontal section of the L-shaped plate 23 fits against the top of the top plate 22, and the horizontal section of the L-shaped plate 23 blocks the notch 221. The inlet 231 communicates with the notch 221.

[0028] It should be noted that this tablet filling device is one of the processes of a flat blister packaging machine. For details, please refer to the technical solutions disclosed in Chinese Patent CN204542883U and Chinese Patent CN208291528U. This process is the prior art in this field. There are intermittently conveyed blister packs on the flat plate. The blister packs are driven to move forward intermittently in subsequent processes.

[0029] Regarding the explanation of the spring-type pipe a, the spring-type pipe a is actually a spring, and its spiral-shaped central area is used to transport the tablet. The design of the spring-type pipe a is existing technology, and the technical solution disclosed in Chinese Patent CN 210140011U can be referenced. Based on the rationality of the design, the gap of the spring-type pipe a should be smaller than the size of the tablet, and the smoothness of tablet transport should be ensured. The bend of the spring-type pipe a should not be too large, and it is only necessary for the tablet to come into contact with the spring-type pipe a during the fall. Therefore, in the projection on the horizontal plane, the spring-type pipe a is located in the area where the top plate 22 is located.

[0030] During the forward movement, blister b will enter the area where the protective cover 2 is located. At this time, the tablets are conveyed into the protective cover 2 through the spring-type pipe a by the tablet conveying mechanism 4 and fall above the blister b. The tablets are filled into the blister b by the cooperation of the drive mechanism 21 and the sorting mechanism 3. During the dropping process, the collision between the tablets and the collision between the tablets and the spring-type pipe a will cause some of the powder on the tablets to detach from the tablets and fall into the top plate 22 through the gap of the spring-type pipe a. After the powder accumulates to a certain extent on the top plate 22, because the tablet conveying mechanism 4 works intermittently, the operator can pull out the top plate 22 in the horizontal direction to clean the top plate 22 or replace it with a new one. In this way, the top plate 22 can be pulled out during the operation.

[0031] Regarding the design of the top plate 22, the aforementioned overlap does not mean that it can be directly overlapped from top to bottom onto the top of the cover 2. Because the horizontal section of the L-shaped plate 23 can block the notch 221 of the top plate 22, the L-shaped plate 23 will block the top plate 22 in the vertical area. Therefore, the installation method of the top plate 22 is as follows: first, a part of the top plate 22 is overlapped onto the top of the cover 2, and then the top plate 22 is pushed towards the L-shaped plate 23 so that the end of the top plate 22 contacts the vertical part of the L-shaped plate 23. The notch 221 of the top plate 22 is blocked by the L-shaped plate 23, and the feed port 231 on the L-shaped plate 23 is connected to the notch 221. The bottom of the L-shaped plate 23 and the top of the top plate 22 are in contact.

[0032] Regarding the powder accumulated on the L-shaped plate 23, since both sides of the horizontal section of the L-shaped plate 23 are within the area of ​​the top plate 22, the powder accumulated on the horizontal section of the L-shaped plate 23 will collapse and fall onto the top plate 22. If the accumulation is on the side of the horizontal section of the L-shaped plate 23 closer to the protective cover 2, the operator can clean it directly. During the cleaning process, the powder will not interfere with the blister b. The area of ​​blister b is only at the front and rear ends of the protective cover 2.

[0033] In this embodiment, the top of the cover 2 is also provided with a connecting plate 24. The length of the connecting plate 24 matches the width of the cover 2. The width of the connecting plate 24 is less than the length of the cover 2. The connecting plate 24 is connected to the top of the cover 2 by bolts. The area not covered by the connecting plate 24 is the open part d. The drive mechanism 21 is connected to the top of the connecting plate 24.

[0034] Specifically, it can be understood that the top of the protective cover 2 is open and closed by the top plate 22 of the connecting plate 24. It is known that because the protective cover 2 is a cuboid structure, its top area is also square. When connected with the connecting plate 24 and the top plate 22, it can provide three support points, specifically the top of the end of the protective cover 2 and the top of the two parts of the protective cover 2. In this way, firstly, it is convenient to clean the powder on the top of the protective cover 2, and secondly, it is convenient to maintain the sorting mechanism 3.

[0035] Furthermore, the sorting mechanism 3 includes a tray 31, a large gear 32, multiple small gears 33, and a cleaning brush 34. The output end of the drive mechanism 21 passes through the protective cover 2 and is fixedly connected to the tray 31. The large gear 32 is disposed on the output end of the drive mechanism 21 and is connected to the output end of the drive mechanism 21 for transmission. The drive mechanism 21 is used to drive the tray 31 and the large gear 32 to rotate synchronously. Multiple small gears 33 are rotatably connected to the tray 31 through a connecting shaft 331 and are arranged around the large gear 32. All of the multiple small gears 33 mesh with the large gear 32. The cleaning brush 34 is connected to the bottom of the connecting shaft 331 and is located below the tray 31.

[0036] In this embodiment, the drive mechanism 21 is a drive motor. The output end c of the drive motor passes through the connecting plate 24 and is fixedly connected to the tray 31. The large gear 32 is set on the output end c of the drive motor. Specifically, the large gear 32 is provided with a keyway, and the output end c of the drive motor is provided with a flat key. The output end c of the motor drives the tray 31 and the large gear 32 to rotate synchronously, which in turn drives multiple small gears 33 to rotate synchronously. Since the small gears 33 are rotatably connected to the tray 31 and mesh with the large gear 32, the small gears 33 will rotate on their own during the rotation process, and drive the cleaning brush 34 to rotate on its own. The overall working method is that the cleaning brush 34 revolves around the output end c of the drive motor and rotates on its own, pushing the tablets located on the blister b and filling the tablets into the blister b. For the specific working method, please refer to the technical solution disclosed in Chinese Patent CN204542883U.

[0037] In this embodiment, the tablet conveying mechanism 4 includes a support platform 41 disposed on one side of the platform 1, an electromagnetic vibrating feeder 42 disposed on the support platform 41, and a hopper 43 disposed on the support platform 41. The electromagnetic vibrating feeder 42 is provided with a conveying disc 421. The discharge end of the hopper 43 is located above the conveying disc 421. Both ends of the conveying disc 421 are closed. The conveying disc 421 is provided with a discharge hole 422. One end of the spring-type pipe a is connected to the discharge hole 422.

[0038] The electromagnetic vibrating feeder 42 is existing technology; for details, please refer to the technical solution of Chinese Patent CN209834801U. The operator adds tablets to the feeding hopper 43, which guides the tablets onto the conveyor disc 421. Vibration of the conveyor disc 421 transports the tablets to the feeding hole 422. To prevent tablet accumulation, the vibration of the conveyor disc 421 is intermittent during the feeding process. That is, when not vibrating, the tablets accumulate below the feeding hopper 43. Vibration loosens the tablets below the feeding hopper 43 and moves them forward, causing the tablets in the feeding hopper 43 to continuously descend. Specifically, the conveyor disc 421 is the feeding trough described in the technical solution of Chinese Patent CN209834801U.

[0039] Regarding the connection method between the spring-type pipe a and the inlet 231 and the outlet 422, it can be done by covering, that is, the end of the spring-type pipe a is embedded in the inlet 231 and the outlet 422. Specifically, the spring-type pipe a can be covered during injection molding. Alternatively, it can be done by snap-fit, that is, both the inlet 231 and the outlet 422 are provided with spiral grooves that match the spring-type pipe a for snap-fit.

[0040] Preferably, the horizontal section of the L-shaped plate 23 is further provided with a connecting pipe 232, which includes a vertical part and an inclined part. The end of the vertical part is connected to the horizontal section of the L-shaped plate 23, and the inclined part is used to guide the tablet to the middle of the protective cover 2.

[0041] In practical use, in order to avoid the notch 221 on the top plate 22 being too long, the horizontal section of the L-shaped plate 23 should be as small as possible. Therefore, the feed inlet 231 will be closer to one side of the protective cover 2. Although the blister b moves forward intermittently, it will bring the tablets into the working area of ​​the sorting mechanism 3. However, the tablets enter the working area of ​​the sorting mechanism 3 in a way that they are piled up on one side. Although sorting can still be achieved, the purpose of setting the connecting pipe 232 is to guide the tablets to the middle of the protective cover 2 so that the tablets are more dispersed.

[0042] Preferably, baffles 222 are also provided on both sides of the top of the top plate 22. The baffles 222 can prevent the powder on the top plate 22 from falling off the sides of the top plate 22.

[0043] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements or modifications can be made without departing from the principle of this application, and these improvements or modifications should also be considered within the scope of protection of this application.

Claims

1. A tablet filling device for a flat-plate blister packaging machine, comprising a platform, a protective cover, a sorting mechanism, and a tablet conveying mechanism, wherein the tablet conveying mechanism is disposed on one side of the platform, the protective cover is hinged to the platform, the tablet conveying mechanism and the protective cover are connected through a spring-loaded pipe, the sorting mechanism is disposed inside the protective cover, and the protective cover is provided with a driving mechanism for driving the sorting mechanism to rotate within the protective cover, characterized in that... The top of the protective cover has an open section, the length of which matches the width of the protective cover. The open section is closed by a top plate, which is set on the top of the protective cover in an overlapping manner. One side of the protective cover has an L-shaped plate, the horizontal section of which is located above the open section. The L-shaped plate has an inlet for connecting a spring-loaded pipe. One end of the top plate along its length has a notch that matches the inlet. When the top plate is connected to the top of the protective cover, the horizontal section of the L-shaped plate fits against the top of the top plate, and the horizontal section of the L-shaped plate covers the notch. The inlet communicates with the notch.

2. The tablet filling device of the flat blister packaging machine according to claim 1, characterized in that, The top of the protective cover is also provided with a connecting plate. The length of the connecting plate matches the width of the protective cover, and the width of the connecting plate is less than the length of the protective cover. The connecting plate is connected to the top of the protective cover by bolts. The area not covered by the connecting plate is the open part. The drive mechanism is connected to the top of the connecting plate.

3. The tablet filling device of the flat blister packaging machine according to claim 1, characterized in that, The sorting mechanism includes a tray, a large gear, multiple small gears, and a cleaning brush. The output end of the drive mechanism passes through the protective cover and is fixedly connected to the tray. The large gear is disposed on the output end of the drive mechanism and is drively connected to the output end of the drive mechanism. The drive mechanism is used to drive the tray and the large gear to rotate synchronously. The multiple small gears are rotatably connected to the tray through a connecting shaft and arranged around the large gear. All of the multiple small gears mesh with the large gear. The cleaning brush is connected to the bottom of the connecting shaft and is located below the tray.

4. The tablet filling device of the flat blister packaging machine according to claim 1, characterized in that, The driving mechanism is a drive motor.

5. The tablet filling device of the flat blister packaging machine according to claim 1, characterized in that, The tablet conveying mechanism includes a support platform on one side of the platform, an electromagnetic vibrating feeder on the support platform, and a hopper on the support platform. The electromagnetic vibrating feeder is equipped with a conveying disc. The discharge end of the hopper is located above the conveying disc. Both ends of the conveying disc are closed. The conveying disc is equipped with a discharge hole. One end of the spring-type pipe is connected to the discharge hole.

6. The tablet filling device of the flat blister packaging machine according to claim 1, characterized in that, The horizontal section of the L-shaped plate is also provided with a connecting pipe, which includes a vertical part and an inclined part. The end of the vertical part is connected to the horizontal section of the L-shaped plate, and the inclined part is used to guide the tablet to the middle of the protective cover.

7. The tablet filling device of the flat blister packaging machine according to claim 1, characterized in that, Baffles are also provided on both sides of the top of the top plate.

8. The tablet filling device of the flat blister packaging machine according to claim 1, characterized in that, In the projection onto the horizontal plane, the spring-loaded pipe is located within the area where the top plate is situated.

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