Cross-clean-area vacuum conveying device
Through a vacuum conveying device across the clean area, a cross-region conveying mechanism is erected in the inside and outside the clean room by using the negative pressure chamber and conveying belt, the problem of manual and cleanliness of drug handling is solved, and the stable delivery of drugs and the cleanliness of cleanliness is achieved, and the synchronization of packaging and packaging is supported.
Patent Information
- Application Number
- CN202422124742.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-08-30
AI Technical Summary
During the drug production process, traditional medicines are transported from the clean room to the clean room to the clean room for labor, affecting the cleanliness and difficult to synchronize the packaging and packaging. The medicines are easily blown off in the airflow, resulting in pollution and unstable delivery.
A vacuum conveying device across clean areas is designed, and a cross-region conveying mechanism is erected inside and outside the clean room using a negative pressure chamber and a conveying belt, so as to achieve stable delivery of medicines through negative pressure adsorption, and a door and air wall structure that can be opened and closed is set up at the window to ensure cleanliness.
It realizes the automatic delivery of drugs from inside and outside the clean room, ensures the stability and cleanliness of drugs, avoids drug pollution and airflow, and supports the synchronization of packaging and packaging.
Smart Images
Figure CN223072820U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a conveying device, in particular to a cross-cleanroom vacuum conveying device. Background Art
[0002] In the process of drug production, it consists of operations such as drug production, sub-packaging, outer packaging, and boxing. Drug production and sub-packaging need to be carried out in a clean room, while packaging and boxing do not need to be carried out in a clean room. The sub-packaged drugs need to be transported from inside the clean room to outside the clean room.
[0003] The traditional process is to first load the sub-packaged drugs into a transfer box in the clean room, and then workers carry it out of the clean room. This method consumes a lot of labor, has low handling efficiency, and the clean room door needs to be opened during handling. The repeated entry and exit of the handling personnel affect the cleanliness of the clean room, and it is also difficult to synchronize sub-packaging and packaging, affecting the continuity of drug production.
[0004] To install an automatic conveying mechanism inside and outside the clean room to achieve the transportation of sub-packaged drugs, it is necessary to open a window on the clean room wall and use a conveyor belt to cross the window and convey it outwards. Since there is a pressure difference between inside and outside the clean room, there will be air flow at the window. When the sub-packaged drugs are transported outwards through the window, they are easily blown off by the air flow. Especially for sub-packaged drugs such as aluminum-plastic medicine plates, which are light in weight and are easily blown off, affecting the normal transportation of sub-packaged drugs and easily causing pollution to the surface packaging of sub-packaged drugs. Summary of the Utility Model
[0005] In order to make up for the above deficiencies, the utility model provides a cross-cleanroom vacuum conveying device, which can automatically transport drugs inside and outside the clean room, with stable and high-efficiency drug transportation and no pollution to the clean room.
[0006] The technical solution adopted by the present utility model to solve its technical problems is as follows: A cross-cleanroom vacuum conveying device, a drug dispensing room and a finished product packaging room, wherein the drug dispensing room and the finished product packaging room are separated by a shared wall, a window is provided on the shared wall, and a cross-region conveying mechanism passing through the window is further provided. The cross-region conveying mechanism includes a conveying bracket, a driving roller, a driven roller, a conveying belt, a driving motor for the driving roller, a negative pressure chamber and a negative pressure generating device. The conveying bracket straddles the drug dispensing room and the finished product packaging room through the window. The driving roller and the driven roller are respectively rotatably mounted on both ends of the conveying bracket around a horizontally extending rotating shaft. The conveying belt is tightly sleeved on the outer circumferences of the driving roller and the driven roller. A plurality of perforations are provided on the conveying belt. The negative pressure chamber is fixedly mounted on the conveying bracket. The negative pressure generating device is communicated with the negative pressure chamber through an air pipe to provide negative pressure. A negative pressure adsorption opening is provided on the upper side surface of the negative pressure chamber. The part of the conveying belt for conveying the dispensed drugs from the drug dispensing room to the finished product packaging room is closely attached to the upper side surface of the negative pressure chamber. The starting end of the cross-region conveying mechanism is located in the drug dispensing room, and the ending end of the cross-region conveying mechanism is located in the finished product packaging room. The cross-region conveying mechanism can convey the dispensed drugs completed in the drug dispensing room to the finished product packaging room for finished product packaging.
[0007] As a further improvement of the present utility model, there is a set distance between the starting end of the conveying belt and the negative pressure chamber, and there is also a set distance between the ending end of the conveying belt and the negative pressure chamber. There is no negative pressure adsorption on the dispensed drugs within the set distance range of the starting section of the conveying belt, and there is no negative pressure adsorption on the dispensed drugs within the set distance range of the ending section of the conveying belt. The negative pressure chamber extends a set length from the window to the drug dispensing room and the finished product packaging room respectively.
[0008] As a further improvement of the present utility model, a door that can be opened and closed is formed on the window, and the cross-region conveying mechanism can be detachably passed through the window.
[0009] As a further improvement of the present utility model, concave sliding grooves are provided on the inner side wall of the window, sealing strips are provided at the edges of the concave sliding grooves, the door can be longitudinally slid and inserted into the concave sliding grooves, and the sealing strips can be hermetically attached to the surface of the door. An opening driving device is also installed in the concave sliding grooves. The opening driving device can drive the door to slide up and down. Control switches electrically connected to the opening driving device are respectively provided on both side walls of the shared wall in the drug dispensing room and the finished product packaging room. The control switches can control the start and stop of the opening driving device.
[0010] As a further improvement of the present utility model, an automatic sensing device is further provided inside the opening window. The automatic sensing device can sense a cross-region conveying mechanism that crosses through the opening window. The automatic sensing device is electrically connected and communicates with a control switch, and the control switch can automatically control the closing or maintaining the open state of the door according to the signal transmitted by the automatic sensing device.
[0011] As a further improvement of the present utility model, a air supply device and a air return device are further provided on one side of the shared wall where the medicine dispensing room is located. The air supply device is located at the upper end of the opening window, and the air return device is located at the lower end of the opening window. The air supply device blows clean air flow from top to bottom, and the clean air flow is returned through the air return device. The clean air flow completely covers the area of the opening window.
[0012] As a further improvement of the present utility model, a dispensing connection conveyor line and a finished product packaging connection conveyor line are further provided. The dispensing connection conveyor line is located inside the medicine dispensing room. The starting end of the conveying of the dispensing connection conveyor line is connected to the medicine dispensing production line inside the medicine dispensing room. The ending end of the conveying of the dispensing connection conveyor line is connected to the starting end of the cross-region conveying mechanism. The finished product packaging connection conveyor line is located inside the finished product packaging room. The starting end of the conveying of the finished product packaging connection conveyor line is connected to the ending end of the cross-region conveying mechanism. The ending end of the conveying of the finished product packaging connection conveyor line is connected to the finished product packaging production line inside the finished product packaging room.
[0013] As a further improvement of the present utility model, buffer platforms are respectively and fixedly provided on both sides of the ending end of the conveying of the finished product packaging connection conveyor line. The buffer platforms are aligned and connected to the surface of the conveyor belt of the finished product packaging connection conveyor line. Retaining walls are fixedly provided on both sides of the finished product packaging connection conveyor line in the direction perpendicular to the conveying direction and around the buffer platforms. The retaining walls can prevent the dispensed medicines on the conveyor belt of the finished product packaging connection conveyor line and the buffer platforms from falling.
[0014] As a further improvement of the present utility model, the retaining walls around the buffer platforms are aligned and connected to the retaining walls on both sides of the finished product packaging connection conveyor line through inclined surfaces.
[0015] As a further improvement of the present utility model, a material full sensor is provided on the buffer platform. The material full sensor can sense the area covered by the dispensed medicines on the buffer platform. The material full sensor is electrically connected and communicates with the dispensing connection conveyor line to control the start and stop of the dispensing connection conveyor line.
[0016] The beneficial technical effects of the present utility model are as follows: By setting a window on the wall shared inside and outside the clean room and installing a cross-region conveying mechanism inside the window, the cross-region conveying mechanism conveys the sub-packaged drugs from inside the clean room to outside the clean room through a conveying belt. When the conveying belt passes through the window area, the perforations on it are exactly opposite and connected to the negative pressure adsorption opening of the negative pressure cavity. Therefore, when the sub-packaged drugs are conveyed to near the window area, they are automatically adsorbed on the conveying belt by negative pressure, and the airflow in the window area will not blow off the sub-packaged drugs, ensuring the stable conveyance of the sub-packaged drugs to outside the clean room, facilitating the direct connection with the packaging production line to synchronize the drug sub-packaging and packaging. The present utility model also designs a door that can be opened and closed at the window on the clean room wall to seal and close the window on the clean room wall when the sub-packaged drugs are not conveyed outwards, preventing outdoor air from entering the clean room and polluting it. Moreover, an air wall that blows downwards from top to bottom is arranged at the window inside the clean room, making it difficult for the air outside the clean room to enter the clean room when the sub-packaged drugs are being conveyed, ensuring the cleanliness of the clean room. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a three-dimensional view of the conveying state of the cross-region conveying mechanism of the present utility model;
[0018] Figure 2 is the front view of the cross-region conveying mechanism of the present utility model;
[0019] Figure 3 is the schematic diagram of the negative pressure adsorption structure of the cross-region conveying mechanism of the present utility model;
[0020] Figure 4 is the front view of the window on the shared wall of the present utility model in the closed state;
[0021] Figure 5 is the rear view of the window on the shared wall of the present utility model in the open state;
[0022] Figure 6 is the front view of the conveying principle of connecting the in-room and out-room production lines of the present utility model;
[0023] Figure 7 is the top view of the conveying principle of connecting the in-room and out-room production lines of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0024] Embodiment: A cross-cleanroom vacuum transfer device, a drug dispensing room 1 and a finished product packaging room 2. The drug dispensing room 1 and the finished product packaging room 2 are separated by a shared wall 3. An opening window 31 is provided on the shared wall 3, and a cross-region conveying mechanism 4 passing through the opening window 31 is further provided. The cross-region conveying mechanism 4 includes a conveying bracket 41, a driving roller 42, a driven roller 43, a conveying belt 44, a driving roller drive motor 45, a negative pressure chamber 46 and a negative pressure generating device 47. The conveying bracket 41 spans across the drug dispensing room 1 and the finished product packaging room 2 through the opening window 31. The driving roller 42 and the driven roller 43 are respectively rotatably mounted at both ends of the conveying bracket 41 around a horizontally extending rotating shaft. The conveying belt 44 is tightly sleeved on the outer circumferences of the driving roller 42 and the driven roller 43. A plurality of perforations 441 are provided on the conveying belt 44. The negative pressure chamber 46 is fixedly mounted on the conveying bracket 41. The negative pressure generating device 47 is communicated with the negative pressure chamber 46 through an air pipe 48 to provide negative pressure. A negative pressure adsorption opening is provided on the upper side surface of the negative pressure chamber 46. The part of the conveying belt 44 for conveying the dispensed drugs from the drug dispensing room 1 to the finished product packaging room 2 is closely attached to the upper side surface of the negative pressure chamber 46. The conveying starting end of the cross-region conveying mechanism 4 is located in the drug dispensing room 1, and the conveying end of the cross-region conveying mechanism 4 is located in the finished product packaging room 2. The cross-region conveying mechanism 4 can convey the dispensed drugs completed in the drug dispensing room 1 into the finished product packaging room 2 for finished product packaging.
[0025] During the drug production process, drug dispensing is carried out in a cleanroom, and after dispensing, an inner package of the drug is formed (such as a whole-board aluminum-plastic package, a bagged granule package, etc.). The inner package is sent out to the finished product packaging room 2 by the cross-region conveying mechanism 4. The finished product packaging room 2 is a non-cleanroom, which is located outside the cleanroom. The inner package is boxed in the finished product packaging room 2 to form a finished product, and finally boxed to complete the drug packaging. The drugs in the inner package are firmly adsorbed on the conveying belt 44 by negative pressure during the conveying process from inside the cleanroom to outside the cleanroom, and will not be affected by the air flow caused by the pressure difference on both sides of the opening window 31, realizing the smooth delivery of the inner package drugs into the finished product packaging room 2, avoiding the scattering of the inner package drugs due to the air flow caused by the pressure difference between inside and outside the cleanroom at the opening window 31, and facilitating the orderly grasping of the inner package drugs by the automatic packaging equipment in the finished product packaging room 2 for finished product packaging.
[0026] There is a set distance between the starting end of the conveyor belt 44 and the negative pressure chamber 46, and there is also a set distance between the conveying end of the conveyor belt 44 and the negative pressure chamber 46. There is no negative pressure adsorption on the dispensed drugs in the starting section of the conveyor belt 44 within the set distance range, and there is no negative pressure adsorption on the dispensed drugs in the conveying end section of the conveyor belt 44 within the set distance range. The negative pressure chamber 46 extends a set length from the opening window 31 to the drug dispensing chamber 1 and the finished product packaging chamber 2 respectively. The dispensed drugs are placed on the starting section of the conveyor belt 44, far away from the opening window 31, without the need for negative pressure adsorption on the dispensed drugs, and can be accurately placed on the conveyor belt 44 to avoid the influence of negative pressure on the drug placement. When the dispensed drugs are conveyed a certain distance into the finished product packaging chamber 2, at this time, it is far away from the opening window 31 area, where there is no air flow interference with the conveyance of the dispensed drugs. When the conveyor belt 44 is separated from the negative pressure chamber 46, there is no negative pressure adsorption on the dispensed drugs. At this time, it is convenient to smoothly pick up the dispensed drugs on the conveyor belt 44 during finished product packaging or smoothly enter the subsequent conveyor belt, avoiding the failure of picking up and continuous transmission.
[0027] A door 6 that can be opened and closed is formed on the opening window 31, and the cross-region conveying mechanism 4 can be detachably inserted into the opening window 31. When it is necessary to convey the dispensed drugs in the drug dispensing chamber 1 to the finished product packaging chamber 2, open the door 6 of the opening window 31 and install the cross-region conveying mechanism 4 to start the conveyance. When it is not necessary to convey the dispensed drugs in the drug dispensing chamber 1 to the finished product packaging chamber 2, detach the cross-region conveying mechanism 4 and close the door 6 of the opening window 31 to separate the drug dispensing chamber 1 and the finished product packaging chamber 2, avoiding the finished product packaging chamber 2 from contaminating the clean drug dispensing chamber 1 and being beneficial to reducing the energy consumption for maintaining the cleanliness of the drug dispensing chamber 1.
[0028] An inward concave sliding groove 61 is provided on the inner side wall of the opening window 31, and sealing strips 62 are provided at the edges of the inward concave sliding groove 61. The door 6 can be longitudinally slid and inserted into the inward concave sliding groove 61, and the sealing strip 62 can be hermetically attached to the surface of the door 6. An opening door 6 driving device is also installed in the inward concave sliding groove 61. The opening door 6 driving device can drive the door 6 to slide up and down. Control switches 63 electrically connected to the opening door 6 driving device are respectively provided on both side walls of the shared wall 3 in the drug dispensing chamber 1 and the finished product packaging chamber 2. The control switch 63 can control the start and stop of the opening door 6 driving device. This structure can achieve the sealed barrier between the drug dispensing chamber 1 and the finished product packaging chamber 2. When it is necessary to convey the dispensed drugs, the door 6 can be opened by operating the control switch 63. When it is not necessary to convey the dispensed drugs, the door 6 can be closed by operating the control switch 63.
[0029] An automatic induction device is further provided inside the opening window 31. The automatic induction device can sense the cross-region conveying mechanism 4 that crosses through the opening window 31. The automatic induction device is electrically connected and communicates with the control switch 63. The control switch 63 can automatically control the door 6 to close or maintain the open state according to the signal transmitted by the automatic induction device. By using the automatic induction device to sense whether the cross-region conveying mechanism 4 passes through the opening window 31, it is prevented that the door 6 on the opening window 31 is forgotten to be closed when there is no packaged medicine being conveyed, thus preventing the air in the finished product packaging room 2 from contaminating the clean medicine dispensing room 1.
[0030] On the side of the common wall 3 located in the medicine dispensing room 1, there is also a air supply device 7 and a air return device 8. The air supply device 7 is located at the upper end of the opening window 31, and the air return device 8 is located at the lower end of the opening window 31. The air supply device 7 blows clean air flow from top to bottom, and the clean air flow is returned through the air return device 8. The clean air flow completely covers the area of the opening window 31. By arranging the air supply device 7 and the air return device 8 at the opening window 31, a vertical air wall is formed at the opening window 31, which can block the air in the finished product packaging room 2 and the air in the clean medicine dispensing room 1, preventing unclean air from entering the clean medicine dispensing room 1.
[0031] There is also a dispensing connection conveyor line 9 and a finished product packaging connection conveyor line 10. The dispensing connection conveyor line 9 is located inside the medicine dispensing room 1. The starting end of the conveying of the dispensing connection conveyor line 9 is connected to the medicine dispensing production line inside the medicine dispensing room 1, and the ending end of the conveying of the dispensing connection conveyor line 9 is connected to the starting end of the conveying of the cross-region conveying mechanism 4. The finished product packaging connection conveyor line 10 is located inside the finished product packaging room 2. The starting end of the conveying of the finished product packaging connection conveyor line 10 is connected to the ending end of the conveying of the cross-region conveying mechanism 4, and the ending end of the conveying of the finished product packaging connection conveyor line 10 is connected to the finished product packaging production line inside the finished product packaging room 2. Through the dispensing connection conveyor line 9 and the finished product packaging connection conveyor line 10, the connection between the medicine dispensing production line and the finished product packaging production line is realized, avoiding transfer.
[0032] On both sides of the ending end of the conveying of the finished product packaging connection conveyor line 10, buffer platforms 5 are respectively and fixedly provided. The buffer platforms 5 are aligned and connected with the surface of the conveyor belt of the finished product packaging connection conveyor line 10. On both sides of the finished product packaging connection conveyor line 10 perpendicular to the conveying direction and around the buffer platforms 5, retaining walls are fixedly provided. The retaining walls can prevent the packaged medicine on the conveyor belt of the finished product packaging connection conveyor line 10 and the buffer platforms 5 from falling. The buffer platforms 5 can be used for temporarily storing the packaged medicine, avoiding the accumulation of the packaged medicine on the finished product packaging connection conveyor line 10. When the packaged medicine accumulates on the finished product packaging connection conveyor line 10, the product automatically slides to the area of the buffer platforms 5 for temporary storage.
[0033] The retaining walls around the buffer platform 5 are aligned and connected to the retaining walls on both sides of the finished product packaging connection conveyor line 10 through inclined surfaces. The inclined angle enables the packaged drugs to smoothly slide along the hypotenuse into the buffer platform 5 for storage when there is a pile-up.
[0034] A full-sensor is provided on the buffer platform 5. The full-sensor can sense the area of the buffer platform 5 covered by the packaged drugs. The full-sensor is electrically connected to the packaging connection conveyor line 9 to communicate and control the start and stop of the packaging connection conveyor line 9. When the buffer platform 5 is also filled with packaged drugs, the full-sensor sends a signal to the packaging connection conveyor line 9 to stop the conveyance, preventing the packaged drugs from continuing to pile up on the buffer platform 5.
Claims
1. A cross-cleanroom vacuum transfer device, a drug dispensing room (1) and a finished product packaging room (2), the drug dispensing room and the finished product packaging room are separated by a shared wall (3), and it is characterized in that: The shared wall is provided with a window opening (31), and a cross-region conveying mechanism (4) passing through the window opening. The cross-region conveying mechanism includes a conveying support (41), a driving roller (42), a driven roller (43), a conveying belt (44), a driving motor for the driving roller (45), a negative pressure chamber (46), and a negative pressure generating device (47). The conveying support straddles the medicine dispensing room and the finished product packaging room through the window opening. The driving roller and the driven roller are respectively rotatably mounted at two ends of the conveying support around a horizontally extending rotating shaft. The conveying belt is tightly sleeved on the outer circumferences of the driving roller and the driven roller. A plurality of perforations (441) are provided on the conveying belt. The negative pressure chamber is fixedly mounted on the conveying support. The negative pressure generating device is communicated with the negative pressure chamber through an air pipe (48) to provide negative pressure. A negative pressure adsorption opening is provided on the upper side surface of the negative pressure chamber. The part of the conveying belt for conveying the dispensed medicine from the medicine dispensing room to the finished product packaging room is closely attached to the upper side surface of the negative pressure chamber. The starting end of the cross-region conveying mechanism is located in the medicine dispensing room, and the ending end of the cross-region conveying mechanism is located in the finished product packaging room. The cross-region conveying mechanism can convey the dispensed medicine completed in the medicine dispensing room to the finished product packaging room for finished product packaging.
2. The cross-cleanroom vacuum transfer device according to claim 1, characterized in that: There is a set distance between the starting end of the conveying belt and the negative pressure chamber, and there is also a set distance between the ending end of the conveying belt and the negative pressure chamber. There is no negative pressure adsorption on the dispensed medicine within the set distance range at the starting section of the conveying belt, and there is no negative pressure adsorption on the dispensed medicine within the set distance range at the ending section of the conveying belt. The negative pressure chamber extends a set length from the window opening to the medicine dispensing room and the finished product packaging room respectively.
3. The cross-cleanroom vacuum transfer device according to claim 1, characterized in that: A door (6) that can be opened and closed is formed on the window opening, and the cross-region conveying mechanism can be detachably inserted through the window opening.
4. The cross-cleanroom vacuum transfer device according to claim 3, characterized in that: Concave chutes (61) are provided on the inner side walls of the window opening, and sealing strips (62) are provided at the edges of the concave chutes. The door can be longitudinally slid and inserted into the concave chutes, and the sealing strips can be hermetically attached to the surface of the door. An opening driving device is also installed in the concave chutes. The opening driving device can drive the door to slide up and down. Control switches (63) electrically connected to the opening driving device are respectively provided on the two side walls of the shared wall where the medicine dispensing room and the finished product packaging room are located. The control switches can control the start and stop of the opening driving device.
5. The cross-cleanroom vacuum transfer device according to claim 4, wherein: An automatic sensing device is also provided in the window opening. The automatic sensing device can sense the cross-region conveying mechanism passing through the window opening. The automatic sensing device is electrically connected and communicated with the control switch. The control switch can automatically control the door to close or maintain the open state according to the signal transmitted by the automatic sensing device.
6. The cross-cleanroom vacuum transfer device according to claim 1, wherein: A air supply device (7) and a air return device (8) are also provided on one side of the shared wall where the medicine dispensing room is located. The air supply device is located at the upper end of the window opening, and the air return device is located at the lower end of the window opening. The air supply device blows clean air flow from top to bottom, and the clean air flow is returned through the air return device. The clean air flow completely covers the area of the window opening.
7. The cross-cleanroom vacuum transfer device according to claim 1, characterized in that: There is also a sub-packaging connection conveyor line (9) and a finished product packaging connection conveyor line (10). The sub-packaging connection conveyor line is located in the medicine sub-packaging room. The starting end of the conveyance of the sub-packaging connection conveyor line is connected to the medicine sub-packaging production line in the medicine sub-packaging room. The ending end of the conveyance of the sub-packaging connection conveyor line is connected to the starting end of the cross-region conveyance mechanism. The finished product packaging connection conveyor line is located in the finished product packaging room. The starting end of the conveyance of the finished product packaging connection conveyor line is connected to the ending end of the cross-region conveyance mechanism. The ending end of the conveyance of the finished product packaging connection conveyor line is connected to the finished product packaging production line in the finished product packaging room.
8. The cross-cleanroom vacuum transfer device according to claim 7, characterized in that: On both sides of the ending end of the conveyance of the finished product packaging connection conveyor line, there are also fixed buffer platforms (5) respectively. The buffer platforms are aligned and connected with the surface of the conveyor belt of the finished product packaging connection conveyor line. On both sides perpendicular to the conveyance direction of the finished product packaging connection conveyor line and around the buffer platforms, there are fixed retaining walls, and the retaining walls can prevent the sub-packaged medicines on the conveyor belt of the finished product packaging connection conveyor line and the buffer platforms from falling.
9. The cross-cleanroom vacuum transfer device according to claim 8, wherein: The retaining walls around the buffer platforms are aligned and connected to the retaining walls on both sides of the finished product packaging connection conveyor line through inclined surfaces.
10. The cross-cleanroom vacuum transfer device according to claim 9, wherein: On the buffer platforms, there are material full sensors. The material full sensors can sense the area covered by the sub-packaged medicines on the buffer platforms. The material full sensors are electrically connected to the sub-packaging connection conveyor line to communicate and control the start and stop of the sub-packaging connection conveyor line.