Tunnel oven bottle outlet shielding device and sterilization drying system

Abstract

This utility model discloses a bottle outlet shielding device and sterilization drying system for a tunnel oven, relating to the field of aseptic bottle drying technology. The tunnel oven bottle outlet shielding device includes a fixing rod and a baffle. Two fixing rods are provided, which are respectively used to set on the solid structures on both sides of the bottle outlet of the tunnel oven. The baffle is used to set on the outside of the bottle outlet of the tunnel oven and has two states: a closed state and an open state. When in the closed state, the baffle completely blocks the bottle outlet of the tunnel oven. When in the open state, the distance between the bottom edge of the baffle and the bottom surface of the bottle outlet of the tunnel oven is not less than the nominal height of the bottle being processed in the tunnel oven. This utility model is easy to operate. The operator only needs to wear isolation gloves with one hand and move the baffle by the handle to fix it, without having to open the RABS system maintenance door to fix the baffle, which greatly reduces the risk of contamination of the Class A clean area of ​​the tunnel oven.

Description

Technical Field

[0001] This utility model relates to the field of aseptic bottle drying technology, and in particular to a bottle outlet shielding device and sterilization drying system for a tunnel oven. Background Technology

[0002] In the production of aseptic pharmaceutical preparations, glass bottles, as the primary packaging material that comes into direct contact with the liquid drug, require sterilization and cleanliness control during the filling process to ensure the sterility of the drug. Tunnel ovens, as key equipment for dry heat sterilization of glass bottles, must sterilize and remove pyrogens at temperatures above 300℃. A laminar flow purification system ensures that the sterilized glass bottles remain under Class A clean air protection throughout the cooling process to room temperature. In this process, the seamless connection between the tunnel oven outlet and the filling machine inlet is crucial for ensuring the cleanliness of the sterilized bottles. High-end tunnel ovens are typically equipped with automatic lifting baffles, controlled by a PLC and linked to the filling line. The baffles automatically open during production and automatically close when the machine stops, preventing airflow exchange between the oven and the external environment.

[0003] However, due to cost constraints in equipment configuration, ordinary tunnel ovens use manual mechanical baffles at the bottle outlet, requiring manual intervention to open and close them. Before each production start-up, operators must wear protective gloves and work in a two-handed manner. One hand holds the bolts on both sides of the metal frame fixed at the bottle outlet of the tunnel oven and rotates them to loosen them, while the other hand simultaneously lifts the baffle until it reaches the specified height required for production. After that, the operator must retighten the loosened bolts to ensure the baffle is stable. However, this process involves many steps and is cumbersome. Furthermore, when operators tighten the bolts at a distance through the protective gloves on the RABS system access door, the distance is inconvenient, forcing them to open the RABS system access door and enter the area to perform the above process. This involves contact with equipment and limbs entering the Class A clean area, which can easily introduce particles and microorganisms carried by personnel. Moreover, with prolonged use, there is a risk of bolt stripping, leading to unstable baffle fixation, easy detachment, and contamination of the Class A area. Therefore, there is an urgent need to develop a low-cost retrofit solution for ordinary tunnel ovens that can meet environmental requirements without altering the main structure of the equipment or opening the maintenance door of the RABS system. Utility Model Content

[0004] The purpose of this invention is to provide a bottle outlet shielding device and sterilization drying system for a tunnel oven, in order to solve the problems existing in the prior art and reduce the risk of contamination of the Class A clean area of ​​the tunnel oven.

[0005] To achieve the above objectives, this utility model provides the following solution:

[0006] This utility model provides a bottle outlet blocking device for a tunnel oven, comprising: a fixing rod and a baffle. Two fixing rods are provided, and the two fixing rods are respectively used to be set on the solid structure on both sides of the bottle outlet of the tunnel oven. One end of the fixing rod is used to be set on the solid structure, and the other end is used to extend along the plane perpendicular to the bottle outlet of the tunnel oven and away from the bottle outlet of the tunnel oven.

[0007] The baffle is used to be set on the outside of the bottle outlet of the tunnel oven. The baffle has two vertical grooves extending vertically at the positions of the two fixed rods. The same side of the two vertical grooves is connected to a horizontal groove extending horizontally. The baffle has two states: a closed state and an open state.

[0008] When in the closed state, the baffle completely blocks the bottle outlet of the tunnel oven. At least part of the fixing rod is located in the vertical groove and slides in cooperation with the vertical groove to enable the baffle to slide vertically. After the baffle slides upward until the horizontal groove is aligned with the fixing rod, the baffle is moved laterally until the fixing rod slides into the horizontal groove, which allows the baffle to switch to the open state.

[0009] When in the open state, the distance between the bottom edge of the baffle and the bottom surface of the bottle outlet of the tunnel oven is not less than the nominal height of the bottle being processed in the tunnel oven.

[0010] In some embodiments, a handle is also included, the handle being disposed on the surface of the baffle opposite to the bottle outlet of the tunnel oven.

[0011] In some embodiments, both the vertical groove and the horizontal groove are through grooves that extend through the thickness direction of the baffle.

[0012] In some embodiments, the fixing rod is a bolt; the bolt's thread passes through the through groove, with both ends extending out of the through groove; one end of the thread is connected to the physical structure of the bottle outlet of the tunnel oven, and the other end is connected to a nut; the diameter of the nut is greater than the width of the through groove.

[0013] In some embodiments, the baffle, the handle, and the fixing rod are all made of stainless steel.

[0014] In some embodiments, the physical structure is a metal frame, and the bolts are welded to the metal frame on both sides of the bottle outlet of the tunnel oven.

[0015] In some embodiments, the handle and the baffle are connected by welding.

[0016] In some embodiments, the thickness of the baffle is less than 2 mm.

[0017] This utility model also provides a sterilization and drying system, including a tunnel oven body and a tunnel oven outlet shielding device as described above.

[0018] The present invention achieves the following technical advantages over the prior art:

[0019] This application provides a bottle outlet shielding device and sterilization drying system for a tunnel oven. The shielding device is easy to open and close, and has a stable structure. The operator only needs to wear an isolation glove attached to the RABS system access door with one hand and move the handle upwards with the other. The vertical movement of the baffle, utilizing the sliding engagement between the fixing rod and the vertical groove of the baffle, allows for vertical lifting of the baffle. The baffle is then fixed by engaging the horizontal groove of the baffle with the fixing rod. This method of operation eliminates the need to open the RABS system access door, significantly reducing the risk of contamination of the Class A clean area of ​​the tunnel oven. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a front view of the baffle when it is in the open position.

[0022] Figure 2 This is a front view of the baffle when it is closed.

[0023] Figure 3 This is a side view of the baffle when it is closed.

[0024] In the diagram: 1-baffle; 2-handle; 3-horizontal groove; 4-vertical groove; 5-fixing rod; 6-tunnel oven body; 7-tunnel oven bottle outlet. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] The purpose of this invention is to provide a bottle outlet shielding device for a tunnel oven, in order to solve the problems existing in the prior art and reduce the risk of contamination of the Class A clean area of ​​the tunnel oven.

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Example 1

[0029] Combination Figures 1 to 3 This embodiment provides a shielding device for the bottle outlet 7 of a tunnel oven, including a fixing rod 5 and a baffle 1. There are two fixing rods 5, which are respectively used to be set on the solid structure on both sides of the bottle outlet 7 of the tunnel oven. One end of the fixing rod 5 is used to be set on the solid structure, and the other end is used to extend along the plane perpendicular to the bottle outlet 7 of the tunnel oven and away from the bottle outlet 7 of the tunnel oven.

[0030] The baffle 1 is used to be set on the outside of the bottle outlet 7 of the tunnel oven. The baffle 1 is provided with two vertical grooves 4 extending vertically at the positions of the two fixed rods 5. The same side of the two vertical grooves 4 is connected to a horizontal groove 3 extending horizontally. The baffle 1 has two states: a closed state and an open state.

[0031] When in the closed state, the baffle 1 completely blocks the bottle outlet 7 of the tunnel oven. At least part of the fixing rod 5 is located in the vertical groove 4 and slides in cooperation with the vertical groove 4 so that the baffle 1 can slide vertically. After the baffle 1 slides upward to the horizontal groove 3 and is aligned with the fixing rod 5, the baffle 1 is moved horizontally until the fixing rod 5 slides into the horizontal groove 3 so that the baffle 1 can switch to the open state.

[0032] When in the open state, the distance between the bottom edge of the baffle 1 and the bottom surface of the bottle outlet 7 of the tunnel oven is not less than the nominal height of the bottle being processed by the tunnel oven.

[0033] When in use, if the initial state is closed, and it needs to be opened, there is no need to open the RABS system access door. Simply reach into the isolation glove set on the RABS system access door with one hand, and then apply an upward force to the baffle 1. This will cause the baffle 1 to slide in the vertical groove 4 until the horizontal groove 3 is aligned with the fixed rod 5. Then, move the baffle 1 laterally until the fixed rod 5 slides into the horizontal groove 3, thus opening the baffle 1.

[0034] If the initial state is open and it needs to be closed, there is no need to open the RABS system access door. Instead, one hand can be inserted into the isolation glove set on the RABS system access door to apply a lateral force to the baffle 1, causing the baffle 1 to move from the horizontal groove 3 to the vertical groove 4. Then, the baffle 1 is moved downward until its bottom edge abuts against the bottom platform of the bottle outlet 7 of the tunnel oven, thus achieving the open state of the baffle 1.

[0035] Therefore, the tunnel oven bottle outlet 7 shielding device provided in this embodiment is easy to operate and has a stable structure. The operator only needs to wear an isolation glove on the RABS system access door and move the upward handle 2 with one hand. The sliding engagement between the fixing rod 5 and the vertical groove 4 of the baffle 1 allows for the vertical lifting of the baffle 1. The baffle 1 is then fixed by abutting the horizontal groove 3 of the baffle 1 against the fixing rod 5. This operation method eliminates the need to open the RABS system access door to fix the baffle 1 at the tunnel oven bottle outlet 7, significantly reducing the risk of contamination in the Class A clean area of ​​the tunnel oven.

[0036] In some embodiments, a handle 2 is also included, which is disposed on the surface of the baffle 1 away from the bottle outlet 7 of the tunnel oven.

[0037] This embodiment provides a way to easily move the baffle 1 by providing a handle 2 on the baffle 1. The operator moves the baffle 1 by using the handle 2, which is simple to operate. In some examples, other methods besides providing a handle 2 on the baffle 1 to move the baffle 1 can also be used, all of which are within the protection scope of this application. For example, a rope can be provided on the baffle 1 or a pull ring can be provided on the baffle 1.

[0038] In some embodiments, the vertical groove 4 and the horizontal groove 3 are both through grooves that pass through the thickness direction of the baffle 1.

[0039] This embodiment provides a specific morphological feature of the groove. In this application, both the vertical groove 4 and the horizontal groove 3 are through grooves, which facilitates the sliding fit of the fixing rod 5 through the through groove and the fixing of the baffle 1. Compared with the blind groove, the sliding fit between the through groove and the fixing rod 5 is simple in structure and has a small contact surface, which makes it less likely to generate friction debris, further reducing the risk of contamination of the Class A clean area.

[0040] In some embodiments, the fixing rod 5 is a bolt; the bolt thread passes through the through groove, and both ends extend out of the through groove. One end of the thread is connected to the solid structure of the bottle outlet 7 of the tunnel oven, and the other end is connected to a nut; the diameter of the nut is larger than the width of the through groove.

[0041] This embodiment provides a specific structure for the fixing rod 5. Bolts are selected as the fixing rod 5, which is easy to obtain and meets the functional requirements of this solution. Furthermore, the diameter of the nut is greater than the width of the through groove, which can effectively prevent the baffle 1 from moving away from the bottle outlet 7 of the tunnel oven and prevent the baffle 1 from falling off.

[0042] In some embodiments, the baffle 1, handle 2, and fixing rod 5 are all made of stainless steel.

[0043] This embodiment provides specific materials for the baffle 1, handle 2, and fixing rod 5, preferably stainless steel. The internal temperature of the tunnel oven is usually as high as several hundred degrees Celsius during operation. Stainless steel has good thermal stability and can maintain structural strength in high-temperature environments, avoiding deformation, melting, or failure of the baffle 1 due to excessive temperature. In some examples, alternative materials other than stainless steel can be used as the specific materials for the baffle 1, handle 2, and fixing rod 5, all of which are within the scope of protection of this application, such as engineering plastics and ceramics.

[0044] In some embodiments, the physical structure is a metal frame bolted to the metal frame on both sides of the bottle outlet 7 of the tunnel oven.

[0045] This embodiment provides a specific method for fixing bolts, which has the advantage of high reliability. In some instances, bolts can also be fixed by methods other than welding, all of which are within the scope of protection of this application, such as snap-fit ​​and threaded connection.

[0046] In some embodiments, the handle 2 and the baffle 1 are connected by welding.

[0047] This embodiment provides a connection method between the handle 2 and the baffle 1, which is simple and highly reliable.

[0048] In some embodiments, the thickness of the baffle 1 is less than 2 mm.

[0049] This embodiment further limits the thickness of the baffle 1, thereby achieving a lightweight design and making it easier for operators to move the baffle 1.

[0050] Example 2

[0051] This embodiment provides a sterilization and drying system, including a tunnel oven body 6 and a shielding device for the tunnel oven bottle outlet 7 as described above.

[0052] Example 2 has all the advantages of Example 1, and will not be repeated here.

[0053] It should be explained that the isolation gloves on the RABS system access door: There are two holes on the RABS system access door, and two isolation gloves are installed through the holes to facilitate the operator to inspect and observe the internal devices from the outside. This is the content of the prior art, and this application does not improve it.

[0054] It should be noted that, for those skilled in the art, it is obvious that this utility model is not limited to the details of the above exemplary embodiments, and that this utility model can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all changes falling within the meaning and scope of the equivalents of the claims be included within this utility model.

[0055] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A device for blocking the bottle outlet of a tunnel oven, characterized in that: include There are two fixing rods, which are respectively used to be installed on the solid structure on both sides of the bottle outlet of the tunnel oven; one end of the fixing rod is used to be installed on the solid structure, and the other end is used to extend along the plane perpendicular to the bottle outlet of the tunnel oven and away from the bottle outlet of the tunnel oven; A baffle is provided on the outside of the bottle outlet of the tunnel oven. The baffle has two vertical grooves extending vertically at the positions of the two fixed rods. A horizontal groove extending horizontally is connected to the same side of the two vertical grooves. The baffle has two states: a closed state and an open state. When in the closed state, the baffle completely blocks the bottle outlet of the tunnel oven. At least part of the fixing rod is located in the vertical groove and slides in cooperation with the vertical groove to enable the baffle to slide vertically. After the baffle slides upward until the horizontal groove is aligned with the fixing rod, the baffle is moved laterally until the fixing rod slides into the horizontal groove, which allows the baffle to switch to the open state. When in the open state, the distance between the bottom edge of the baffle and the bottom surface of the bottle outlet of the tunnel oven is not less than the nominal height of the bottle being processed in the tunnel oven.

2. The bottle outlet shielding device of the tunnel oven according to claim 1, characterized in that: It also includes a handle, which is disposed on the surface of the baffle opposite to the bottle outlet of the tunnel oven.

3. The bottle outlet shielding device of the tunnel oven according to claim 1, characterized in that: Both the vertical groove and the horizontal groove are through grooves that extend through the thickness direction of the baffle.

4. The bottle outlet shielding device of the tunnel oven according to claim 3, characterized in that: The fixing rod is a bolt; the fixing rod is a bolt; the bolt's thread passes through the through groove, and both ends extend out of the through groove; one end of the thread is connected to the physical structure of the bottle outlet of the tunnel oven, and the other end is connected to a nut; the diameter of the nut is greater than the width of the through groove.

5. The bottle outlet shielding device of the tunnel oven according to claim 2, characterized in that: The baffle, the handle, and the fixing rod are all made of stainless steel.

6. The bottle outlet shielding device of the tunnel oven according to claim 4, characterized in that: The physical structure is a metal frame, and the bolts are welded to the metal frame on both sides of the bottle outlet of the tunnel oven.

7. The tube outlet shielding device of the tunnel oven according to claim 5, characterized in that: The handle and the baffle are connected by welding.

8. The bottle outlet shielding device of the tunnel oven according to claim 1, characterized in that: The thickness of the baffle is less than 2 mm.

9. A sterilization and drying system, comprising a tunnel oven and a bottle outlet shielding device as described in any one of claims 1 to 8.

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