A sterilization device for multi-container packaging

Abstract

A kind of multi-container packaging sterilization device before, including sterilization frame and sterilization mechanism, sterilization mechanism includes the sterilization shell connected on sterilization frame, parallel sterilization passageway is provided in the sterilization shell, rotary table is provided in sterilization passageway, rotary table positioning mechanism and sterilization medium introduction seat are provided on the sterilization shell corresponding each sterilization passageway.Sterilization medium enters sterilization passageway by sterilization medium introduction seat, after disposable container enters sterilization passageway, sufficient sterilization is carried out in slow descending process, and falls into sealing cutting mechanism and is sealed.This utility model is arranged before the sealing link of disposable container, realizes sterilization in the container packaging process, and simultaneously by multi-station sterilization, production efficiency is greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of container packaging technology, specifically relating to sterilization packaging equipment for disposable containers. Background Technology

[0002] The packaging process is a crucial step in the production of disposable paper cups, plastic cups, fast food containers, yogurt cups, ice cream cups, sauce cups, self-heating food containers, fresh food packaging boxes, takeaway soup / porridge buckets, baking / dessert containers, and other similar containers (collectively referred to as "disposable containers"). This process is completed by packaging equipment. Current packaging equipment generally lacks a sterilization step during packaging, which can easily lead to bacterial residues and a shortened shelf life. Since disposable containers come into direct contact with drinking water, beverages, and food, microbial contamination can directly endanger the health of users, posing a health hazard.

[0003] Oversights in multiple stages of the disposable container production environment can become entry points for microbial contamination. These can be broadly categorized into five main factors: air, equipment, personnel, raw materials, and cleaning and disinfection.

[0004] 1. Air environment factors Airborne microorganisms are the most easily overlooked source of pollution, and they will settle directly onto the surface of paper cups.

[0005] Air cleanliness is not up to standard: The production workshop has not carried out air purification treatment, or the clean area level is not high enough (such as not reaching Class 10,000 or Class 100,000), and bacteria and mold spores in the air will spread with the airflow.

[0006] Ventilation system problems: If the vents are not equipped with filters, the filters are not replaced for a long time, or the airflow direction is unreasonable (such as flowing from the contaminated area to the clean area), microorganisms may be carried into the core production area.

[0007] Excessive dust in the workshop: Dust is a "carrier" for microorganisms. If the paper dust generated during paper cutting and paper cup forming is not cleaned up in time, it will attach to microorganisms and settle on the products.

[0008] 2. Production equipment factors Equipment is a critical link that comes into direct contact with disposable containers, and inadequate surface cleaning can lead to continuous contamination.

[0009] Residual dirt on equipment surfaces: If paper fibers, oil stains, or debris from previous batches remain in the gaps of equipment such as conveyor belts, molds, and packaging machines, bacteria will grow and transfer to newly produced disposable containers.

[0010] Untimely equipment maintenance: After prolonged operation, the seals may age, parts may rust, or all contact points (such as corners and interfaces) may not be covered during cleaning and disinfection, creating "breeding grounds" for microorganisms.

[0011] Cooling water / lubricant contamination: Some equipment requires the use of cooling water or lubricants. If these media themselves have excessive microbial levels, or if a leak occurs and comes into contact with disposable containers, it will directly cause contamination.

[0012] 3. Operator factors People are dynamic sources of pollution in the production environment, and their hygiene habits directly affect product safety.

[0013] Inadequate hand cleaning: If operators do not wash and disinfect their hands as required, or if their gloves are damaged or not replaced in time, bacteria on their hands (such as Escherichia coli and Staphylococcus aureus) can be transferred to disposable containers through contact.

[0014] Inadequate personal protective equipment: Not wearing clean work clothes, caps, and masks allows microorganisms from hair, dander, and clothing to detach and contaminate products; eating and smoking in the workshop can also introduce exogenous microorganisms.

[0015] Improper personnel movement control: Non-production personnel may enter the clean area at will, or production personnel may enter the clean area directly from contaminated areas (such as raw material warehouses or restrooms), which may bring external microorganisms into the core production process.

[0016] 4. Raw material and auxiliary material factors If the raw materials themselves carry bacteria, it is difficult to completely remove them during subsequent processing, which will become a source of pollution.

[0017] Excessive microorganisms in the base paper / PE film: If the base paper (such as food-grade white cardboard) or the PE film on the inner wall of disposable containers gets damp during production, storage, and transportation (such as excessive humidity in the warehouse), mold will grow; damaged packaging can also lead to microbial invasion.

[0018] Adhesive / Ink Contamination: Some disposable containers require adhesives for molding or ink for external printing. If these auxiliary materials themselves fail to meet microbial standards or are contaminated during use, it will indirectly affect the hygiene of disposable containers.

[0019] 5. Cleaning and disinfection factors Improper cleaning and disinfection procedures can lead to the continuous accumulation of microorganisms in the production environment.

[0020] Incomplete cleaning: If only the surface of the workshop floor, walls, countertops, and auxiliary tools such as turnover baskets and pallets are cleaned without thoroughly cleaning the gaps and corners, microorganisms will remain and gradually multiply.

[0021] Improper disinfection frequency / method: Disinfection intervals that are too long (such as disinfecting only once a day, which cannot control the rate of microbial reproduction), or the use of insufficient concentration or unsuitable type of disinfectant (such as being ineffective against mold) will result in poor disinfection effects.

[0022] Secondary contamination after disinfection: If disinfected equipment and tools are not dried in time, or if they come into contact with unsterilized cloths or containers, they will be contaminated again by microorganisms.

[0023] During the molding, stacking, and packaging processes, disposable containers easily come into contact with equipment surfaces, operators' hands, and the air, potentially harboring bacteria, mold, and other microorganisms. These microorganisms can multiply during storage, especially in humid environments where the risk of mold growth is extremely high. By omitting the sterilization process, bacteria persist throughout the entire process from production to storage, ultimately reaching the end user. The specific hazards can be summarized in three points: 1. Storage Stage: Accelerated Deterioration and Significantly Shortened Shelf Life. Bacteria carried by containers during packaging (such as E. coli and mold spores from the production environment) will multiply rapidly under suitable temperature and humidity conditions (such as a humid warehouse and a temperature above 25°C). For example, disposable containers may develop mold, plastic cups may develop odors, and the inner walls of fast food boxes may become sticky. The original shelf life of 6 months may be shortened to 2-3 months, directly causing inventory losses.

[0024] 2. Usage Stage: Directly Threatens User Health. These multiplied bacteria can enter the human body through beverages and food that come into contact with the container. If the bacterial count exceeds the standard (e.g., E. coli exceeds the national standard), it may cause gastrointestinal discomfort, such as diarrhea and abdominal pain; if mold grows, it may also produce mycotoxins that are harmful to the human body, which are difficult to completely remove even with heating.

[0025] 3. Brand and compliance risks: Enterprises face double losses. Products without sterilization processes are considered substandard. If discovered by market regulators during random inspections, enterprises will face fines and production suspension for rectification. At the same time, if consumers experience health problems due to product use, it will lead to complaints and negative reviews, seriously damaging brand reputation and even causing market loss.

[0026] There is an urgent need in the market for a device that can sterilize during the packaging process. Summary of the Invention

[0027] To address the shortcomings of existing single-use container packaging technology, this invention provides a highly efficient sterilization device for multi-container packaging, which sterilizes containers before packaging.

[0028] The sterilization device for multi-container packaging of this utility model adopts the following technical solution.

[0029] The device includes a sterilization rack and a sterilization mechanism. The sterilization mechanism includes a sterilization shell connected to the sterilization rack. The sterilization shell has parallel sterilization channels inside. A turntable is installed in each sterilization channel. The sterilization shell is equipped with a turntable positioning mechanism and a sterilization medium inlet seat for each sterilization channel.

[0030] The turntable has claws distributed on it and is mounted in the sterilization shell via a rotating shaft. The end face of the turntable has positioning holes that mate with positioning pins in the turntable positioning mechanism (the turntable is positioned by inserting the positioning pins into the positioning holes). The bottom of the sterilization shell is the outlet for disposable containers. The turntable has at least three claws, evenly distributed. When the number of claws is even, the length of one claw in two opposing claws is greater than the length of the other claw (corresponding to the cross-section of the center hole), and the vertical center line of the rotating shaft is offset from the line connecting the center of the rotating shaft and the center of the positioning pin, forming a certain angle. This angle cannot be an integer multiple of 360 degrees divided by twice the number of claws (360 / 2 * number of claws). Each turntable can hold multiple disposable containers, which are stacked together as one packaging unit. The number of disposable containers in each packaging unit is set according to packaging requirements, and the axial dimension of the turntable is also set according to the number of disposable containers each packaging unit needs to hold.

[0031] The rotating shaft is connected to a servo motor, which is mounted on the sterilization shell.

[0032] The lower part of the sterilization shell is connected to the converging shell. The longitudinal section of the converging shell is funnel-shaped, and its upper width is the same as the width of the sterilization shell. Each disposable container falling from the sterilization channel will enter the converging shell.

[0033] The sterilization channel is equipped with elastic damping plates on its side walls. The lower end of the elastic damping plates is arc-shaped, allowing disposable containers to be thrown out along the tangent of the arc. The disposable containers are first lifted and rotated before falling freely, slowing down the falling speed of the disposable containers, ensuring thorough sterilization, increasing sterilization time, and limiting their falling trajectory. If there are multiple elastic damping plates, the falling disposable containers will land on the next elastic damping plate until they reach the bottom.

[0034] The sterilization channels are formed inside the sterilization shell by partitions of varying lengths. The length of each partition is determined by its distance to the lower inclined surface, ensuring that the distance between the bottom of each partition and the inner wall of the converging shell is consistent (slightly larger than the outer diameter of the disposable container). The purpose of setting multiple sterilization channels is: 1) to allow multiple sets of disposable containers to be input (stacked) within a single sterilization device, making the sterilization shell structure more compact (compared to single-channel input); 2) to offset the margin issue arising from the long input time of the disposable container and the short packaging time, allowing one packaging device to correspond to multiple input ports, thus reducing the waiting time of the packaging device and enabling uninterrupted continuous operation, thereby improving the efficiency of the packaging device. For a particular channel, it only flips once (unloads the disposable container) when the input of the disposable container reaches the set value. There is an intermittent (process time) rotation problem. This intermittent (process time) is generally longer than the process time of the packaging device. The packaging device has a margin. To eliminate this margin, multiple channels need to be arranged to reduce the margin. The number of channels should be set according to this margin. 3) This design can meet the requirement of packaging multiple sets of disposable containers in one packaging unit (packaging bag) to reduce the consumption of packaging materials.

[0035] The turntable positioning mechanism includes a positioning cylinder and a positioning pin. The positioning cylinder is mounted on the sterilization shell, and the positioning pin is connected to the piston rod of the positioning cylinder. The piston rod of the positioning cylinder drives the positioning pin to extend and retract, thereby locking or unlocking the turntable in the sterilization mechanism. When locked, the turntable cannot rotate.

[0036] The sterilization medium inlet seat has a sterilization medium inlet and a sterilization medium outlet on the inlet substrate. The sterilization medium inlet is connected to an external sterilization medium delivery pipe, and the sterilization medium outlet is connected to the inside of the sterilization shell.

[0037] Each sterilization channel on the sterilization shell is equipped with an input device, which includes an input pipe, a counter, and a gate valve. The counter is installed in the input pipe, and the gate valve is connected to the input pipe outlet. The gate valve includes a gate valve base plate, a gate cylinder, and a gate plate. The gate cylinder is mounted on the gate valve base plate, and the gate plate is connected to the piston rod of the gate cylinder and inserted into the gate plate groove on the gate valve base plate. Disposable containers enter the input pipe and are counted by the counter before entering the sterilization mechanism (sterilization shell). When a set number is reached, the gate valve closes, and disposable containers cannot pass through.

[0038] The sterilization medium enters the sterilization channel through the sterilization medium inlet seat. After entering the sterilization channel, the disposable container undergoes thorough sterilization during its slow descent and then falls into the sealing and cutting mechanism for encapsulation.

[0039] The sterilization medium enters the sterilization channel through each sterilization medium inlet seat. The disposable container is fully sterilized during the slow descent and then falls into the sealing device for sealing.

[0040] This invention is placed before the packaging stage of disposable containers, achieving sterilization during the container packaging process. At the same time, through multi-station sterilization, it significantly improves production efficiency. Attached Figure Description

[0041] Figure 1 This is a schematic diagram illustrating the application of the sterilization device for multi-container packaging according to this utility model.

[0042] Figure 2 This is a schematic diagram of the sterilization device for multi-container packaging according to this utility model.

[0043] Figure 3 This is a schematic diagram of the rotating positioning mechanism in the sterilization device.

[0044] Figure 4 This is a schematic diagram of the sterilization mechanism in a sterilization device.

[0045] Figure 5 This is a schematic diagram of the sterilization shell in the sterilization mechanism.

[0046] Figure 6 This is a schematic diagram of the back structure of the sterilization shell.

[0047] Figure 7 This is a schematic diagram of the converging shell in the sterilization mechanism.

[0048] Figure 8 This is a schematic diagram of the rotating disc in the sterilization mechanism.

[0049] Figure 9 This is a schematic diagram of the upper cover plate in the sterilization mechanism.

[0050] Figure 10 This is a schematic diagram of the sterilization medium inlet seat in the sterilization device.

[0051] Figure 11 This is a schematic diagram of the input device in this utility model; Figure 12 This is a schematic diagram of the gate valve base plate in the input device.

[0052] Figure 13 This is a schematic diagram of the gate valve in the input device.

[0053] Figure 14 This is a schematic diagram of the input tube in the input device.

[0054] In the diagram: 1. Sterilization device, 2. Input device, 3. Packaging device, 4. Frame, 5. Transmission device; 11. Mounting bracket; 12. Servo motor; 13. Turntable positioning mechanism; 14. Sterilization mechanism; 15. Sterilization medium inlet seat; 131. Positioning cylinder; 132. Positioning pin; 141. Sterilization shell, 142. Turntable, 143. Rotating shaft, 144. Disposable container, 145. Top cover, 146. Elastic damping plate, 147. Converging shell, 148. Sterilization channel; 1411. Shaft hole, 1412. Locating pin hole, 1413. Positioning mechanism mounting hole, 1414. Mounting hole, 1415. Short partition, 1416. Long partition, 1417. Mounting hole, 1418. Container inlet, 1419. Mounting hole, 14101. Vertical center line of shaft hole, 14102. Line connecting shaft hole and locating pin hole; 1471. Upper interface, 1472. Sloping surface, 1473. Disposable container outlet, 1474. Straight drop trough, 1475. Transition arc surface.

[0055] 1421. Long claw, 1422. Long claw, 1423. Positioning hole, 1424. Short claw, 1425. Center hole, 1426. Short claw; 144. Disposable containers; 1451. Sterilization medium inlet; 1452. Mounting hole; 21. Gate valve base plate; 22. Gate cylinder; 23. Gate plate; 24. Counter; 25. Input pipe; 211. Gate cylinder mounting hole; 212. Gate plate mounting groove; 213. Interface; 214. Mounting hole; 251. Input pipe outlet, 252. Input pipe body, 253. Input pipe inlet. Detailed Implementation

[0056] This utility model's multi-container pre-packaging sterilization device is applied to... Figure 1 The packaging equipment shown includes a frame 4, an input device 2, a sterilization device 1 (as described in this invention), and a sealing device 3. The input device 2 is connected to the sterilization device 1. Disposable containers enter the sterilization device 1 through the input device 2 for sterilization, and are then sealed by the sealing device 3. The sealed disposable containers are then transported out on the conveying device 5.

[0057] Figure 2 The structure of the sterilization device 1 in this utility model is shown, including a sterilization rack 11, a sterilization mechanism 14, a turntable positioning mechanism 13, and a sterilization medium inlet seat 15. The sterilization rack 11 is connected to the frame 4, and the sterilization mechanism 14 is provided on the sterilization rack 11. The sterilization mechanism 14 is provided with a servo motor 12, a turntable positioning mechanism 13, and a sterilization medium inlet seat 15.

[0058] Figure 3 The structure of the turntable positioning mechanism 13 is shown, including a positioning cylinder 131 and a positioning pin 132. The positioning cylinder 131 is mounted on the sterilization shell 141, and the positioning pin 132 is connected to the piston rod of the positioning cylinder 131. The piston rod of the positioning cylinder drives the positioning pin 132 to extend or retract, thereby locking or unlocking the sterilization mechanism.

[0059] Figure 4 The structure of the sterilization mechanism 14 is shown, including a sterilization shell 141 and a turntable 142. A converging shell 147 integrally formed with the sterilization shell 141 is provided at the lower part of the sterilization shell 141. A sterilization medium inlet seat 15 is connected to the upper cover plate 145 of the sterilization shell 141. The sterilization shell 141 has parallel sterilization channels 148, and each sterilization channel 148 has a turntable 142. The turntable 142 is mounted in the sterilization shell 141 via a rotating shaft 143. The rotating shaft 143 is connected to a servo motor 12, and the servo motor 12 drives the turntable 142 to rotate via the rotating shaft 143. Elastic damping plates 146 are installed on the side walls of the sterilization channel 148. The lower end of the elastic damping plate 146 is arc-shaped, which allows the disposable container 144 to be thrown out along the tangent of the arc. The disposable container 144 is first lifted and rotated, and then falls freely, which slows down the falling speed of the disposable container 144, increases the sterilization time, limits its falling trajectory, and ensures sterilization without dead angles. If there are multiple elastic damping plates 146, the falling disposable container 144 will fall onto the next elastic damping plate 146 until it reaches the bottom. The material selection, lower arc angle (shape), and number of elastic damping plates 146 are determined according to the sterilization time requirements and the properties of the disposable container 144 (if the disposable container 144 has low plasticity, it is easily damaged if the falling speed is fast or if it is collided, then the lower arc angle of the elastic damping plate 146 should be small, the material elasticity should be matched, and the arrangement density should be high). Disposable containers 144 falling from each sterilization channel 148 will enter the collection shell 147.

[0060] The elastic damping plate 146 serves two purposes: firstly, it absorbs the potential energy of the disposable container as it falls; secondly, the absorbed potential energy is converted into elastic potential energy through its own elastic deformation, which then acts on the container, causing it to bounce back. Thirdly, the design of the angle at the end of the elastic damping plate directs the container's trajectory tangentially. Based on the Bernoulli effect and the Magnus force principle, the container moves along an arc, and combined with its own gravity, it falls while rotating. The rotational arc, speed, and trajectory can all be designed by selecting the material of the elastic damping plate, the angle of elevation, and its arrangement. As the container's potential energy is continuously absorbed by the elastic damping plate, it eventually falls when its potential energy approaches zero. During rotation, the container not only achieves thorough sterilization but also disturbs the sterilization medium, creating turbulence and maximizing its performance, thus improving its utilization efficiency.

[0061] The structure of the sterilization shell 141 is as follows Figure 5 As shown, the interior of the sterilization shell 141 is divided into several sterilization channels 148 by partitions. The partitions are divided into long partitions 1416 and short partitions 1415. The long partitions 1416 are closer to the center than the short partitions 1415 (Note: The disposable container collection shell 147 is provided with a slope 1472, which is inclined towards the center. That is to say, the distance from the container inlet 1418 closer to the center to the slope 1472 is greater. In order to limit the trajectory of the disposable containers 144 entering from these container inlets 1418, the partitions are longer and the number of elastic damping plates 146 installed is greater. At the same time, it also prevents the disposable containers 144 descending from adjacent sterilization channels 148 from interfering with each other). This makes the sterilization channels 148 have different heights, which facilitates the falling of disposable containers on the outside. Mounting holes 1417 are provided on the left and right sides of the sterilization shell 141 for mounting on the frame 4. The height of the sterilization shell 141 is set according to the sterilization process and sterilization time requirements. If the sterilization time is long, the sterilization shell 141 needs to be taller to allow the disposable container 144 to remain in the sterilization shell 141 for a longer period. The front side of the sterilization shell 141 is provided with a container inlet 1418 and a shaft hole 1411 for allowing the disposable container 144 to enter the corresponding sterilization channel 148. The number of container inlets 1418 corresponds to the number of sterilization channels 148. The periphery of each container inlet 1418 is provided with mounting holes 1419 for installing the input device 2, allowing the two to connect. The number of container inlets 1418 is designed based on the difference between the input time of the disposable container 144 and the sealing time. See also... Figure 6The rear side of the sterilization shell 141 is provided with a shaft hole 1411, a positioning pin hole 1412, a positioning mechanism mounting hole 1413, and a mounting hole 1414. The two ends of the rotating shaft 143 are respectively mounted on the shaft holes 1411 on the front and rear sides of the sterilization shell 141 via bearings. The positioning pin hole 1412 is used to insert the positioning pin 132 into the turntable positioning mechanism 13. The positioning mechanism mounting hole 1413 is used to install the positioning cylinder 131 in the turntable positioning mechanism 13. The mounting hole 1414 is used to install the servo motor 12. The vertical center line 14101 of the shaft hole and the line 14102 connecting the shaft hole and the positioning pin hole are staggered (not coincident), forming a certain angle. This angle should not be designed as an integer multiple of 360 degrees divided by 2 times the number of claws (360 / 2 * number of claws); in this embodiment, it is 40 degrees.

[0062] The structure of the convergent shell 147 is as follows Figure 7 As shown, the upper end is an upper interface 1471 that seamlessly connects with the sterilization shell 141. From top to bottom, the left and right sides of the interface 1471 are provided with a slope 1472, a transition arc surface 1475, and a drop groove 1474. The slope 1472 and the drop groove 1474 smoothly transition through the transition arc surface 1475, facilitating the passage of disposable containers 144. The internal width of the drop groove 1474 is slightly larger than the width of the disposable containers 144, allowing only one set of disposable containers 144 to pass through at a time. The disposable containers 144 slide freely down the slope 1472 into the drop groove 1474, converge, and sequentially exit the sterilization mechanism 14 through the disposable container outlet 1473, entering the sealing device 3 to complete the sealing process.

[0063] Due to the presence of the inclined plane 1472, the distance between the disposable containers 144 entering from different container inlets 1418 and the inclined plane 1472 or the drop trough 1474 is different. To prevent the disposable containers 144 from having a "hard landing," the partitions inside the sterilization shell 141 are of different lengths, with their lower ends spaced at the same distance from the inclined plane 1472. This distance is slightly larger than the outer diameter of the disposable containers 144. More elastic damping plates 147 can be installed on the sidewalls of the longer partitions 1416 than on the sidewalls of the shorter partitions 1415 to regulate the falling trajectory of the disposable containers 144 and reduce their descent speed.

[0064] The structure of turntable 142 is as follows Figure 8As shown. A center hole 1425 is provided at the center of the turntable 142 for connecting to the rotating shaft 143, which can be achieved through a key connection or other means, allowing the turntable 142 to rotate together with the rotating shaft 143. Adjacent long claws 1421, 1422, 1424, and 1426 are evenly distributed on the circumference of the turntable 142. Long claws 1421 and 1424 are opposite each other (at an angle of 180 degrees), and long claws 1422 and 1426 are opposite each other (at an angle of 180 degrees). A positioning hole 1423 is provided on the end face of the turntable 142. A positioning pin 132 is inserted into the positioning hole 1423 to lock the turntable 142 in place, preventing it from rotating. Each turntable 142 can accommodate multiple disposable containers 144, which are stacked together as a packaging unit. The number of disposable containers 144 in each packaging unit is set according to the packaging requirements, and the axial dimension of the turntable 142 is also set according to the number of disposable containers 144 that each packaging unit needs to accommodate.

[0065] After the disposable container 144 enters the sterilization shell 141, due to the symmetry of the long claws 1421 and short claws 1424, and the long claws 1422 and short claws 1426 in the central hole cross-section of the turntable 142, but with different lengths, there is a quality difference (e.g. Figure 8 As shown); furthermore, the vertical center line 14101 of the shaft hole and the connecting line 14102 between the shaft hole and the locating pin hole are installed at a 40-degree angle (as shown). Figure 6 As shown, when the positioning hole 1423 in the turntable 142 is locked with the positioning pin 132 (the positioning pin 132 enters the positioning hole 1423), the center of gravity of the turntable 142 will not coincide with the vertical center line 14101 of the shaft hole (if the included angle is 45 degrees or an integer multiple of 45 degrees, an equilibrium point may appear, and the turntable 142 may stop at this angle and not rotate automatically), and there will be a self-driving rotational force under the action of gravity. When the disposable container 144 enters the sterilization shell 141, the mass increases, and the self-driving rotational force is correspondingly strengthened. When the positioning pin 132 is pulled out of the positioning hole 1423, the turntable 142 will rotate automatically. Whether the turntable 142 can rotate depends on whether the positioning pin 132 is in the positioning hole 1423 of the turntable 142.

[0066] When the number of disposable containers 144 input reaches the set quantity, the positioning pin 132 is pulled out of the positioning hole 1423 under the action of the positioning cylinder 131, and the turntable 142 rotates automatically (because the positioning mechanism 15 is installed on the left side of the vertical center line 14101 of the shaft hole, such as...). Figure 5 As shown, the turntable 142 rotates clockwise. To limit the descent speed and trajectory of the disposable container 144, multiple elastic damping plates 146 are installed on the short partition 1415 and long partition 1416 of the sterilization shell 141, respectively. The long partition 1416 has more elastic damping plates 146 than the short partition 1415.

[0067] After the disposable container 144 is detached from the turntable 142, the turntable 142 can still rotate naturally under the action of inertia. To prevent the turntable 142 from failing to rotate automatically to the set position, or from misalignment between the positioning hole 1423 and the positioning pin 132 during equipment restart, a servo motor 12 is installed at one end of the rotating shaft 143 for active compensation and precise locking. When the positioning hole 1423 rotates to the corresponding position of the positioning pin 132, the positioning pin 132, under the action of the positioning cylinder 131, enters the positioning hole 1423 and locks the turntable 142 to rotate, and the cycle repeats continuously.

[0068] The structure of the top cover plate 145 is as follows Figure 9 As shown, it is provided with a sterilization medium inlet 1451 and a mounting hole 1452. The mounting hole 1452 is used to install the sterilization medium inlet seat 155, and the sterilization medium inlet 1451 is connected to the sterilization medium outlet 1553 in the sterilization medium inlet seat 155. The structure of the sterilization medium inlet seat 155 is as follows. Figure 10 As shown, the inlet substrate 1551 is provided with a sterilization medium inlet 1552, a sterilization medium outlet 1553, and a mounting hole 1554. The mounting hole 1554 is used to install the inlet substrate 1551 onto the upper cover plate 145 of the sterilization shell 141. The sterilization medium inlet 1552 is connected to an external sterilization medium delivery pipe, and the sterilization medium outlet 1553 is connected to the sterilization channel 148.

[0069] Figure 11 The structure of input device 2 is shown, including an input pipe 25, a counter 24, and a gate valve. The counter 24 is housed in the input pipe 25, and the gate valve is connected to the input pipe outlet 251 of the input pipe 25. The gate valve includes a gate valve base plate 21, a gate cylinder 22, and a gate plate 23. The gate cylinder 22 is mounted on the gate valve base plate 21, and the gate plate 23 is connected to the piston rod of the gate cylinder 22 and inserted into a gate plate groove 212 on the gate valve base plate 21. The structure of the gate valve base plate 21 is as follows... Figure 12 As shown, it is provided with a gate cylinder mounting hole 211, a gate plate mounting groove 212, an interface 213, and a mounting hole 214. The gate cylinder mounting hole 211 is used to install the gate cylinder 22, the gate plate mounting groove 212 is used to insert the gate plate 23 and guide the movement of the gate plate 23, the interface 213 is used to connect the input pipe outlet 251 of the input pipe 25, and the mounting hole 214 is used to connect the gate valve base plate 21 to the sterilization shell 141. The structure of the gate plate 23 is as follows. Figure 13 As shown, it is provided with mounting holes 231, through which the gate plate 23 is connected to the piston rod of the gate cylinder 22. The structure of the input pipe 25 is as follows. Figure 14As shown, the input tube body 252 is S-shaped, with two ports: the input tube outlet 251 and the input tube inlet 253. Disposable containers enter the input tube body 252 through the input tube inlet 253 and are counted by the counter 24. After passing through the input tube outlet 221, they enter the sterilization mechanism 14. When the set number is reached, the piston rod of the gate cylinder 22 extends, driving the gate plate 23 to close the gate valve, preventing disposable containers from passing through the gate valve base plate 21.

[0070] Initially, the gate valve in input device 2 is open, and disposable containers enter the sterilization shell 141 through input pipe 25. The number of containers entering is counted by counter 24. Sterilization medium (such as chlorine dioxide) enters the sterilization shell 141 through sterilization medium inlet 155, and the disposable containers are sterilized as they fall. When the accumulated quantity on each counter 24 reaches the required quantity for one packaging, the gate valves in each input pipe 25 close. The sterilized disposable containers fall into sealing device 3 for sealing, and the quantity sealed in one operation is the required quantity for one packaging. Simultaneously, the gate valve opens, and the disposable containers re-enter the sterilization channel through input pipe 25, thus completing the cycle.

Claims

1. A sterilization device for multi-container packaging, characterized in that, It includes a sterilization rack and a sterilization mechanism. The sterilization mechanism includes a sterilization shell connected to the sterilization rack. The sterilization shell has parallel sterilization channels inside. A turntable is installed in each sterilization channel. The sterilization shell is equipped with a turntable positioning mechanism and a sterilization medium inlet seat for each sterilization channel.

2. The sterilization device before multi-container packaging according to claim 1, characterized in that, The turntable is equipped with claws and is mounted in the sterilization shell via a rotating shaft. The end face of the turntable is provided with a positioning hole that cooperates with the positioning pin in the turntable positioning mechanism. The bottom end of the sterilization shell is the container outlet.

3. The sterilization device before multi-container packaging according to claim 2, characterized in that, The turntable has at least three claws, which are evenly distributed. When the number of claws is even, the length of one claw in two opposing claws is greater than the length of the other claw, and the vertical center line of the rotating shaft is staggered from the line connecting the center of the rotating shaft and the center of the positioning pin. The angle between the vertical center line of the rotating shaft and the line connecting the center of the rotating shaft and the center of the positioning pin cannot be an integer multiple of 360 degrees divided by twice the number of claws.

4. The sterilization device before multi-container packaging according to claim 2, characterized in that, The rotating shaft is connected to a servo motor, which is mounted on the sterilization shell.

5. The sterilization device before multi-container packaging according to claim 1, characterized in that, The lower part of the sterilization shell is connected to the converging shell, and the longitudinal section of the converging shell is funnel-shaped. Its upper width is the same as the width of the sterilization shell, and the disposable containers falling from each sterilization channel enter the converging shell.

6. The sterilization device before multi-container packaging according to claim 1, characterized in that, An elastic damping plate is provided on the side wall of the sterilization channel, and the lower end of the elastic damping plate is arc-shaped.

7. The sterilization device before multi-container packaging according to claim 5, characterized in that, The sterilization channel is formed inside the sterilization shell by partitions, and the bottom of each partition is spaced at the same distance from the inner wall of the converging shell.

8. The sterilization device before multi-container packaging according to claim 1, characterized in that, The turntable positioning mechanism includes a positioning cylinder and a positioning pin. The positioning cylinder is mounted on the sterilization shell, and the positioning pin is connected to the piston rod of the positioning cylinder.

9. The sterilization device before multi-container packaging according to claim 1, characterized in that, The sterilization medium inlet seat has a sterilization medium inlet and a sterilization medium outlet on the inlet substrate. The sterilization medium inlet is connected to an external sterilization medium delivery pipe, and the sterilization medium outlet is connected to the inside of the sterilization shell.

10. The sterilization device before multi-container packaging according to claim 1, characterized in that, The sterilization shell is equipped with an input device for each sterilization channel. The input device includes an input tube, a counter, and a gate valve. The input tube contains a counter, and the input tube outlet is connected to a gate valve.

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