Drying and filling system

Abstract

The utility model discloses a drying and filling system, which relates to the technical field of pharmaceutical equipment, and comprises a drying area and a buffer area, an air door is arranged between the drying area and the buffer area, the drying area is provided with a tail bottle pushing mechanism, the tail bottle pushing mechanism comprises a driving mechanism and a bottle pushing rod connected with the driving mechanism, and the bottle pushing rod is provided with a blocking part. The blocking part is in butt joint with the air door to reduce pressure difference fluctuation between the buffering area and the drying area. The drying and filling system has the advantages that the structure is simple, automatic control can be achieved without manual intervention, and differential pressure fluctuation is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of pharmaceutical equipment technology, and in particular relates to a drying and filling system. Background Technology

[0002] Due to differences in processes, isolators and tunnel sterilizers exhibit a high pressure differential gradient. Generally, the pressure differential near the oven cavity of the isolator is 35-40 Pa, while in the cooling section of the tunnel oven it is 5-15 Pa, resulting in a pressure differential gradient of 20-35 Pa. When the last bottle passes through the oven outlet, the isolator's transition plate flap may contain a bottle, preventing the sealing door from closing within 30 seconds. Without the bottle obstructing the flow, the isolator cavity connects with the cooling section of the oven, causing the high-pressure differential pressure in the isolator to flow into the low-pressure cooling section. This results in a decrease in the isolator's pressure differential and an increase in the cooling section's pressure differential, leading to large and drastic fluctuations in the pressure differential. This can cause the cooling zone to exceed the heating zone's pressure differential and trigger an alarm for excessively low pressure in the isolator cavity, failing to meet the pressure differential control requirements of both the tunnel oven and the isolator.

[0003] Patent application CN200820176305.8 discloses a protection device for the differential pressure balancing system inside a sterilization dryer tunnel. This device uses a return air hood and a hull extending from below to above the bottle conveyor belt to separate the laminar flow inside the sterilization dryer from the laminar flow in the filling room. An airflow channel is formed between the hull and the return air hood. Wind deflectors for the bottle conveyor belt are installed on the partition wall between the bottle washing room and the filling unit, or on the laminar flow box of the cooling section at the bottle outlet of the sterilization dryer. The gap between the wind deflectors and the bottle conveyor belt is adjustable. However, in this design, the bottle conveyor belt spans both the sterilization dryer and the filling room, failing to meet aseptic requirements. Furthermore, the position of the wind deflectors cannot be automatically controlled, requiring manual adjustment, which is inconvenient. Additionally, because there is an air damper between the isolator and the tunnel-type sterilization dryer, the existing technology cannot install wind deflectors, thus making it unsuitable for differential pressure control when the isolator and the tunnel-type sterilization dryer are connected. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a drying and filling system that is simple in structure, can be automatically controlled without manual intervention, and can reduce pressure difference fluctuations.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A drying and filling system includes a drying zone and a buffer zone, with an air damper between the drying zone and the buffer zone. The drying zone is equipped with a bottle pushing mechanism, which includes a drive mechanism and a bottle pushing rod connected to the drive mechanism. The bottle pushing rod is equipped with a blocking part, which is connected to the air damper to reduce pressure difference fluctuations between the buffer zone and the drying zone. The system has a simple structure, requires no manual intervention, and can achieve automatic control and reduce pressure difference fluctuations.

[0007] As a further improvement to the above technical solution:

[0008] The drying zone and the buffer zone are connected by a movable transition plate. The buffer zone is equipped with a bottle tray, and the structure is reasonably laid out.

[0009] It also includes a filling area, and pressure detection devices are installed in both the drying area and the filling area to provide timely pressure feedback.

[0010] The drive mechanism includes a servo motor, which is connected to the bottle pusher via a chain and linkage assembly to achieve automatic control.

[0011] The linkage assembly includes a first linkage and a second linkage. One end of the first linkage is fixedly connected to the chain, and the other end of the first linkage is hinged to one end of the second linkage. The second linkage is Z-shaped, and the other end of the second linkage is equipped with a guide wheel and a bottle pusher to ensure smooth bottle pushing.

[0012] The damper is connected to a lifting drive mechanism. By moving the damper, the buffer zone and the drying zone can be separated.

[0013] The buffer zone and filling zone are located inside the isolator to meet the requirements for aseptic filling.

[0014] The blocking part is a baffle set along the bottle pusher rod. The baffle is located above the bottle pusher rod for easy processing.

[0015] The baffle height is 50 to 100 millimeters, and the structure is simple and reasonable.

[0016] The drying area is located inside the drying oven.

[0017] Compared with the prior art, the advantages of this utility model are:

[0018] This utility model discloses a drying and filling system. When the last bottle passes through the oven outlet, a drive mechanism drives a bottle pusher to move, pushing the bottle from the drying zone to a buffer zone. After all bottles enter the buffer zone, a blocking part on the bottle pusher engages with an air damper and remains there for a certain period until all bottles in the buffer zone have entered the rear filling zone. Then, the bottle pusher retracts to a waiting position, and the air damper can be lowered to close, preventing pressure fluctuations in the filling zone caused by the drying zone during filling. During the bottle transport process in the buffer zone, the engagement of the blocking part with the air damper reduces or avoids the flow of high pressure from the filling zone to low pressure in the drying zone, thereby reducing pressure fluctuations between the buffer and drying zones. The blocking part is located on the bottle pusher and can be driven by the pusher's drive mechanism, eliminating the need for a separate drive structure. This simplifies the structure and avoids the inconvenience of manually operating a separate blocking mechanism. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a filling and drying system according to the present invention;

[0020] Figure 2 A schematic diagram of the structure before the bottles are pushed into the drying zone;

[0021] Figure 3 A schematic diagram of the structure after the bottle is pushed into the drying zone;

[0022] Figure 4 for Figure 3 A magnified view of a portion of the image.

[0023] The reference numerals in the figures of this utility model are as follows: 1. Drying area; 2. Buffer zone; 3. Air damper; 4. Tail bottle pushing mechanism; 5. Drive mechanism; 6. Bottle pusher rod; 7. Blocking part; 8. Oven; 9. Transition plate; 10. Bottle tray; 11. Filling area; 12. Chain; 13. Linkage assembly; 131. First link; 132. Second link; 14. Guide wheel; 15. Lifting drive mechanism; 16. Isolator. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] like Figures 1 to 4 As shown, a drying and filling system includes a drying zone 1 and a buffer zone 2. An air damper 3 is provided between the drying zone 1 and the buffer zone 2. The drying zone 1 is provided with a bottle pushing mechanism 4. The bottle pushing mechanism 4 includes a drive mechanism 5 and a bottle pushing rod 6 connected to the drive mechanism 5. A blocking part 7 is provided on the bottle pushing rod 6. The blocking part 7 is connected to the air damper 3 to reduce the pressure difference fluctuation between the buffer zone 2 and the drying zone 1.

[0026] When the bottles pass through the outlet of the oven 8, the drive mechanism 5 drives the bottle pusher 6 to move, pushing the bottles in the drying zone 1 to the buffer zone 2. After all the bottles have entered the buffer zone 2, the blocking part 7 on the bottle pusher 6 engages with the damper 3 and remains there for a certain period of time until all the bottles in the buffer zone 2 have entered the rear filling zone 11. Then, the bottle pusher 6 retracts to the waiting position for pushing bottles, and the damper 3 can be lowered to close, preventing pressure fluctuations in the filling zone 11 caused by the drying zone 1 during filling. During the conveying of bottles in the buffer zone 2, the engagement of the blocking part 7 with the damper 3 reduces or avoids the flow of high pressure from the filling zone 11 to the low pressure in the drying zone, thereby reducing pressure fluctuations between the buffer zone 2 and the drying zone 1. The blocking part 7 is located on the bottle pusher 6 and can be driven by the drive mechanism 5 of the bottle pusher 6. It does not require a separate drive structure, making the structure simple and avoiding the inconvenience of manually operating a separate blocking mechanism.

[0027] The drying zone 1 and the buffer zone 2 are connected by a movable transition plate 9. The buffer zone 2 is equipped with a bottle tray 10. The damper 3 is connected to the lifting drive mechanism 15. When all the bottles in the bottle tray 10 have left the bottle tray 10, the transition plate 9 can be moved. Then the damper 3 is driven to descend by the lifting drive mechanism 15. The damper 3 separates the drying zone 1 and the buffer zone 2. The drying zone 1 is set in the oven 8 and also includes a filling zone 11. The buffer zone 2 and the filling zone 11 are set in the isolator 16. The isolator 16 is equipped with a filling and capping machine. The buffer zone 2 corresponds to the bottle inlet section of the filling and capping machine, and the filling zone 11 corresponds to the filling section of the filling and capping machine. When the bottle enters the bottle unscrambling tray 10, the bottle needs to move in an arc within the tray 10. Therefore, the transition plate 9 cannot be moved at this time to prevent the bottle from falling off the platform. The damper can only be closed after the transition plate 9 is moved away. If the blocking part 7 does not block the gap between the damper 3 and the transition plate 9, the high pressure in the filling zone 11 will flow to the low pressure buffer zone 2 and the drying zone 1. Therefore, by connecting the blocking part 7 with the damper 3, the pressure difference fluctuation between the buffer zone 2 and the drying zone 1 will be reduced, ultimately ensuring that the filling zone 11 is always in a high-pressure environment, avoiding contamination, and ensuring the sterile environment of the equipment.

[0028] Both the drying zone 1 and the filling zone 11 are equipped with pressure detection devices, which can provide timely feedback of pressure data and facilitate differential pressure control.

[0029] The drive mechanism 5 includes a servo motor, which is connected to the bottle pusher 6 via a chain 12 and a connecting rod assembly 13. The servo motor drives the bottle pusher 6, facilitating precise control of its position. The oven 8 is a tunnel-type sterilization dryer, which includes a preheating section, a drying section, and a cooling section. In this design, the drying zone 1 refers to the cooling zone. The temperature in this cooling zone is relatively lower than that in the drying zone, but still higher than the ambient temperature. The chain 12 and connecting rod assembly 13 can adapt to the high-temperature environment of the drying zone 1.

[0030] The linkage assembly 13 includes a first linkage 131 and a second linkage 132. One end of the first linkage 131 is fixedly connected to the chain 12, and the other end of the first linkage 131 is hinged to one end of the second linkage 132. The second linkage 132 is Z-shaped, and the other end of the second linkage 132 is provided with a guide wheel 14 and a bottle pusher 6. When the bottle pusher 6 is in the waiting position, since the linkage assembly 13 and the chain 12 form an angle, the bottle pusher can be suspended above the bottle, avoiding affecting the production process of the oven 8. When the chain 12 drives the linkage assembly 13 to move, one end of the second linkage 132 falls on the mesh belt of the oven 8, and drives the bottle pusher 6 to move through the guide wheel 14, ensuring stable bottle pushing.

[0031] The blocking part 7 is a baffle set along the bottle pusher 6. The baffle is set above the bottle pusher 6. In order to ensure the bottle pushing effect and prevent the bottle from tipping over when the bottle pusher 6 pushes the bottle, the separately set baffle can be made of relatively thin stainless steel sheet. The structure is simple and compact. The selection requirements of the drive mechanism 5 will not be increased due to the setting of the blocking part 7. The height of the baffle is 50 to 100 mm, which is close to the distance between the bottle head and the damper. The blocking part 7 can also be regarded as a part of the bottle pusher 6. It can be raised compared to the original bottle pusher 6. The bottle pusher 6 itself can also form a blocking function.

[0032] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible variations and modifications to the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the protection scope of the present invention.

Claims

1. A drying and filling system, characterized in that, The device comprises a drying area (1) and a buffer area (2), a damper (3) is arranged between the drying area (1) and the buffer area (2), the drying area (1) is provided with a tail bottle pushing mechanism (4), the tail bottle pushing mechanism (4) comprises a driving mechanism (5) and a bottle pushing rod (6) connected with the driving mechanism (5), a blocking part (7) is arranged on the bottle pushing rod (6), the blocking part (7) is in butt joint with the damper (3) for reducing the pressure difference fluctuation between the buffer area (2) and the drying area (1).

2. A drying and filling system according to claim 1, characterized in that: The drying area (1) and the buffer area (2) are connected through a movable transition plate (9), and the buffer area (2) is provided with a bottle arranging disc (10).

3. A drying and filling system according to claim 1, wherein: The device further comprises a filling area (11), and the drying area (1) and the filling area (11) are both provided with pressure detection members.

4. A drying and filling system according to claim 1, wherein The driving mechanism (5) comprises a servo motor, the servo motor is connected with the bottle pushing rod (6) through a chain (12) and a linkage assembly (13).

5. A drying and filling system as claimed in claim 4, characterized in that The linkage assembly (13) comprises a first linkage (131) and a second linkage (132), one end of the first linkage (131) is fixedly connected with the chain (12), the other end of the first linkage (131) is hingedly connected with one end of the second linkage (132), the second linkage (132) is in Z shape, the other end of the second linkage (132) is provided with a guide wheel (14) and the bottle pushing rod (6).

6. A drying and filling system according to claim 1, wherein The damper (3) is connected with a lifting driving mechanism (15).

7. A drying and filling system according to claim 3, wherein The buffer area (2) and the filling area (11) are arranged in an isolator (16).

8. A drying and filling system according to claim 1, wherein, The blocking part (7) is a baffle arranged along the bottle pushing rod (6), and the baffle is arranged above the bottle pushing rod (6).

9. A drying and filling system according to claim 8, wherein, The baffle has a height of 50-100 mm.

10. A drying and filling system according to claim 1, wherein The drying area (1) is arranged in an oven (8).

Images