Production system and convenience food

Abstract

A production system and a convenience food. The production system comprises a base, a conveying mechanism arranged on the base and used for conveying a container body, a sealing mechanism arranged on the base and used for providing a heat seal cover and heat sealing the heat seal cover on the container body to form an initial container, a leak detection mechanism arranged on the base and used for performing a leak detection operation on the initial container to identify a leaky initial container and a non-leaky initial container, an ejection mechanism arranged on the base and used for ejecting the leaky initial container, and a capping mechanism used for capping an outer cover on the non-leaky initial container. By using the above scheme, the sealing performance of the product can be improved.

Description

Technical Field

[0001] This utility model relates to the field of food packaging technology, specifically to a production system and convenience food. Background Technology

[0002] Current instant noodle products typically include a container and the noodles and seasoning packet inside. The container consists of a body and a lid, with the lid being a single snap-on cap. Using a single snap-on cap affects product variety and user experience.

[0003] As a result, instant noodle products with double lids have appeared on the market. The lid of the instant noodle container includes not only a snap-on lid, but also a heat-sealed lid that is heat-sealed onto the container body. The snap-on lid is attached to the container body outside the heat-sealed lid.

[0004] However, existing packaging methods for double-lid instant noodle products make it difficult to guarantee the product's airtightness, ultimately affecting product quality. Utility Model Content

[0005] The problem this invention aims to solve is: how to improve the sealing performance of a product.

[0006] To address the above problems, this utility model provides a production system, which includes:

[0007] Base;

[0008] A conveying mechanism, mounted on the base, is used to transport the container body;

[0009] A sealing mechanism, disposed on the base, is used to provide a heat-sealing cap and heat-seal the heat-sealing cap onto the container body to form an initial container;

[0010] A leak detection mechanism is installed on the base and is used to perform a leak detection operation on the initial container to identify the leaking initial container and the non-leaking initial container.

[0011] A discharge mechanism, disposed on the base, is used to discharge the leaking initial container;

[0012] And a capping mechanism for fastening the outer cap onto the airtight initial container.

[0013] In one possible embodiment, the leak detection mechanism includes: a leak detection bracket, and a sensor assembly and a comparator disposed on the leak detection bracket; wherein:

[0014] The sensor assembly is located above the conveying mechanism and is used to sense whether the initial container is leaking air, and to obtain the leak detection result.

[0015] The comparator is used to compare the leak detection result with a preset threshold to obtain a leak detection result signal, wherein the leak detection result signal indicates that the currently detected initial container is either the leaking initial container or the non-leaking initial container.

[0016] In one possible embodiment, the production system further includes:

[0017] A pre-compression mechanism, disposed on the base, is used to perform a pre-compression operation on the initial container, so that the leak detection mechanism performs a leak detection operation on the pre-compressed initial container.

[0018] In one possible embodiment, the discharge mechanism includes: a discharge control component, a lifting component, a discharge component, a conveying component, and a storage component; wherein:

[0019] The lifting assembly includes a plurality of lifting components, which are located below the container bodies on the conveying mechanism; each container body on the conveying mechanism is provided with a lifting component below it.

[0020] The conveying component is used to convey the leaking initial container to the storage component;

[0021] The storage component is used to store the leaking initial container;

[0022] The discharge control component is connected to the leak detection mechanism and is adapted to receive the leak detection result signal sent by the leak detection mechanism.

[0023] In one possible embodiment, when the leak detection result signal indicates that the initial container is the leaking initial container, the discharge control component controls the lifting member below the corresponding initial container to move so that the corresponding initial container protrudes from the conveying mechanism, and controls the discharge component to discharge the initial container protruding from the conveying mechanism onto the conveying component.

[0024] In one possible embodiment, the discharge component includes:

[0025] A discharge bracket is located on the base and spans over the conveying mechanism; a plurality of discharge rods are rotatably connected to the discharge bracket for discharging the initial container protruding from the conveying mechanism onto the conveying assembly.

[0026] In one possible embodiment, the conveying mechanism includes: a plurality of conveying holes for receiving the container body, and a container cap positioning structure is provided around each conveying hole for defining the position of the outer cap.

[0027] In one possible embodiment, the cover mechanism includes:

[0028] A snap-fit ​​assembly for performing a snap-fit ​​operation on the outer cover of the airtight initial container, such that the outer cover is fastened to the airtight initial container;

[0029] A feeding assembly for providing the outer cover to the airtight initial container.

[0030] In one possible embodiment, the unloading assembly includes a suction cup for picking up the outer cover and placing it on the airtight initial container.

[0031] This utility model embodiment also provides a convenience food, which is obtained by using any of the above-described production systems.

[0032] Compared with the prior art, the technical solution of this utility model embodiment has the following advantages:

[0033] By applying the solution of this utility model and setting up a leakage detection mechanism, a leakage detection operation can be performed on the initial container after the heat-sealing cap is heat-sealed onto the container body to identify the leaking initial container and the non-leaking initial container. Then, the leaking initial container can be discharged using the discharge mechanism, while the outer cap is only fastened to the non-leaking initial container. This can ensure the sealing of the final product and help improve product quality. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of a production system according to an embodiment of the present invention;

[0035] Figure 2 This is a top view of a conveyor hole in one embodiment of this utility model;

[0036] Figure 3 This is a schematic diagram of a discharge structure according to an embodiment of the present invention;

[0037] Figure 4 This is a structural schematic diagram of a snap-fit ​​assembly according to an embodiment of the present utility model;

[0038] Figure 5 yes Figure 2 A schematic diagram of the cross-sectional structure of the middle conveyor hole along the BB direction;

[0039] in:

[0040] 11-Base, 12-Transmission mechanism, 13-Leakage detection mechanism, 14-Discharge mechanism, 15-Cover mechanism, 50-Outer cover;

[0041] 121 - Transfer hole; 122 - Container lid positioning structure;

[0042] 141-Discharge control component, 142-Lifting component, 143-Discharge component, 144-Transfer component, 145-Storage component;

[0043] 151a - snap fastener bracket, 151b - snap fastener drive component, 151c - snap head. Detailed Implementation

[0044] Instant noodles typically consist of a container and the noodles and seasoning packet placed inside. The container includes a container body and a lid, with the lid consisting of a single snap-on cap.

[0045] Because the container lid consists of only a single snap-on lid, the dough needs to be pre-packaged before being placed in the container during the packaging process. This not only increases packaging costs but also reduces the internal space of the container, resulting in insufficient product variety. Furthermore, the snap-on lid has poor heat conductivity, causing the seasoning packet to heat up at a low temperature when placed on top of it during consumption, negatively impacting the user experience.

[0046] To enhance user experience and product variety, instant noodle products with double lids have appeared on the market. These containers include not only a snap-on lid but also a heat-sealed lid that is attached to the container body. The snap-on lid is attached to the outside of the heat-sealed lid and then fastened to the container body. Because the container lid includes a heat-sealed lid, the noodles can be removed from their pre-packaged form and placed directly into the container, increasing internal space and reducing packaging costs. Furthermore, when eating, the seasoning packet can be placed on the heat-sealed lid for preheating. The thinner lid has better heat conduction, allowing the seasoning packet to heat up quickly, thus improving the user experience.

[0047] However, when packaging instant noodle products with double lids, it is difficult to ensure the airtightness of the container, which ultimately affects the product quality.

[0048] To address this problem, this utility model provides a production system including a leakage detection mechanism. This leakage detection mechanism can perform a leakage detection operation on the initial container after the heat-sealed cap is heat-sealed onto the container body, in order to identify the leaking initial container and the non-leaking initial container. It can then identify the non-leaking initial container and fasten the outer cap, thereby ensuring the sealing of the final product container and improving product quality.

[0049] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0050] Reference Figure 1 This utility model embodiment provides a production system, which may include: a base 11, a conveying mechanism 12, a sealing mechanism (not shown), a leakage detection mechanism 13, a discharge mechanism 14, and a capping mechanism 15. Wherein:

[0051] The conveying mechanism 12 is disposed on the base 11 and is used to convey the container body;

[0052] The sealing mechanism, disposed on the base 11, is used to provide a heat-sealing cap and heat-seal the heat-sealing cap onto the container body to form an initial container;

[0053] The leak detection mechanism 13 is disposed on the base 11 and is used to perform a leak detection operation on the initial container to identify the leaking initial container and the non-leaking initial container.

[0054] The discharge mechanism 14 is disposed on the base 11 and is used to discharge the leaking initial container;

[0055] The capping mechanism 15 is used to fasten the outer cap onto the airtight initial container.

[0056] By setting up a leak detection mechanism 13, it is possible to detect whether the initial container is leaking before the outer cover is fastened to the initial container. Subsequently, the leaking initial container can be discharged, and only the outer cover is fastened to the non-leaking initial container, thereby avoiding the initial container leaking and affecting product quality.

[0057] In a specific implementation, the conveying mechanism 12 conveys the container body along direction A. The sealing mechanism (not shown), the leakage detection mechanism 13, the discharge mechanism 14, and the capping mechanism 15 can be arranged sequentially along direction A, thereby sequentially performing heat sealing, leakage detection, discharge, and capping operations on the container body on the conveying mechanism 12.

[0058] In a specific implementation, the conveying mechanism 12 includes a plurality of conveying holes. These conveying holes can be arranged in a fixed number of rows, with each row of conveying holes arranged sequentially along direction A. Within the same row, the conveying holes are arranged sequentially perpendicular to direction A, with the edges of adjacent conveying holes connected sequentially. The edges of adjacent rows of conveying holes are also connected. Each conveying hole is used to accommodate a container, and the size of the conveying hole matches the size of the container. The container includes a container sidewall and a container bottom. The container sidewall forms a receiving space around the container, and this receiving space has a container opening with a flange protruding outward from the container sidewall. When the container is located within the conveying hole, the flange is located outside the conveying hole to limit the depth of the container within the conveying hole.

[0059] In a practical implementation, several rows of conveying holes can be formed by creating through holes in the aluminum plate. The overall structure formed by these rows of conveying holes can then be called an aluminum busbar. Correspondingly, the conveying mechanism may also include a conveying drive assembly. The conveying drive assembly is connected to the aluminum busbar and is used to drive the aluminum busbar to move along direction A, thereby realizing the conveying of the container.

[0060] In practice, the number of conveying holes in each row can be set according to actual production needs. Figure 2 A top view of a row of conveyor holes 121 is shown. For example, refer to... Figure 2 The edges of the three transmission holes 121 are connected in sequence to form a row of transmission holes.

[0061] In practice, the sealing mechanism can acquire one row of heat-sealing caps at a time and heat-seal them onto one row of container bodies to obtain an initial row of containers. Specifically, the number of heat-sealing caps in a row is the same as the number of conveying holes in a row of conveying holes, thus allowing the heat-sealing operation to be performed on a row-by-row basis. The heat-sealing cap is a heat-sealing layer formed at the container opening, and the material of this heat-sealing layer can be, for example, aluminum foil or a plastic composite film. The heat-sealing layer can be thermally bonded to the container opening, forming a one-time, non-reopenable sealed structure. The heat-sealing layer is relatively thin, typically between 30µm and 50µm, and has good thermal conductivity, allowing for preheating by placing the seasoning packet on the heat-sealing cap.

[0062] In practice, the leak detection mechanism 13 can use sensors to perform leak detection on the initial container.

[0063] Specifically, the leak detection mechanism 13 may include: a leak detection bracket, and a sensor assembly and a comparator disposed on the leak detection bracket; wherein: the sensor assembly is located above the conveying mechanism 12 and is used to sense whether the initial container leaks air to obtain a leak detection result. The comparator is used to compare the leak detection result with a preset threshold to obtain a leak detection result signal, which indicates whether the currently detected initial container is a leaking initial container or a non-leaking initial container.

[0064] In a specific implementation, the leak detection bracket can be installed across the conveying mechanism 12 in a direction perpendicular to direction A. Multiple sensor assemblies can be installed on the leak detection bracket in this direction. The number of sensor assemblies can be the same as the number of conveying holes in a row of conveying holes. Each sensor assembly corresponds to one initial container, and each sensor assembly can detect whether the initial container below it is leaking. This allows for leak detection operations to be performed in rows to improve production efficiency.

[0065] In one embodiment, the sensor assembly may include a displacement sensor, a pressure plate, and a detection plate. The displacement sensor may be fixed to a leak detection bracket. The pressure plate may be connected to the displacement sensor and located below the displacement sensor and above the initial container. The detection plate may be a thin metal or plastic disc, fixed to the center of the top of the pressure plate, and moves up and down with the pressure plate. The displacement sensor can detect leaks by measuring the displacement of the detection plate.

[0066] Specifically, if the initial container leaks air, the pressure plate will usually not be lifted, and the distance detected by the displacement sensor will remain basically unchanged or the value will be very small. If there is an air leak, the pressure plate will be lifted, the detection plate will be displaced from the displacement sensor more significantly, and the resulting value will be larger.

[0067] Multiple sensor components can share the same comparator, or each sensor component can have its own dedicated comparator. This comparator compares the output of the sensor component with a preset threshold, that is, it compares the displacement of the detection element with a preset displacement threshold to determine whether the initial container is leaking, and then outputs a leak detection signal characterizing whether the initial container is leaking.

[0068] In one embodiment of this utility model, to improve the accuracy of leak detection, the production system may further include a pre-compression mechanism. The pre-compression mechanism may be disposed on the base 11 and is used to perform a pre-compression operation on the initial container, so that the leak detection mechanism performs a leak detection operation on the pre-compressed initial container.

[0069] Specifically, the pre-compression mechanism may include a pre-compression bracket and multiple pressure heads mounted on the pre-compression bracket. The number of pressure heads may be the same as the number of conveying holes in a row of conveying holes, and each pressure head may perform a pre-compression operation on one of the initial containers. This pre-compression operation applies a certain pressure to the heat-sealing cap of the initial container. If the initial container leaks, the pre-compression operation will compromise the container's seal, resulting in smaller pressure plate displacement. This avoids false leak detection due to pressure plate displacement, thereby improving the accuracy of leak detection.

[0070] In practice, the leaking initial container can be discharged via a discharge mechanism. This discharge mechanism can include various structures, and no limitation is made here.

[0071] In one embodiment of this utility model, reference is made to Figure 3 The discharge mechanism 14 includes: a discharge control component 141, a lifting component 142, a discharge component 143, a conveying component 144, and a storage component 145; wherein:

[0072] The lifting assembly 141 includes a plurality of lifting components, which are located below the container bodies on the conveying mechanism; each container body on the conveying mechanism is provided with a lifting component below it.

[0073] The conveying component 144 is used to convey the leaking initial container to the storage component 145;

[0074] The storage component 145 is used to store the leaking initial container;

[0075] The discharge control component 146 is connected to the leak detection mechanism 13 and is adapted to receive the leak detection result signal sent by the leak detection mechanism 13.

[0076] In a specific implementation, when the leak detection result signal indicates that the initial container is a leaking initial container, the discharge control component 146 can control the lifting member below the corresponding initial container to move so that the corresponding initial container protrudes from the conveying mechanism 12, and control the discharge component 143 to discharge the initial container protruding from the conveying mechanism 12 onto the conveying component 144.

[0077] In practice, when the initial container is determined to be leaking, the discharge control component 146 controls the lifting member below the initial container to lift it, making the leaking initial container protrude more from the conveying mechanism 12 compared to other unlifted initial containers. Then, the discharge control component 146 can control the discharge component 143 to discharge the protruding initial container from the conveying mechanism 12 onto the conveying component 144.

[0078] In one embodiment, the discharge assembly 143 may include a discharge bracket and a plurality of discharge rods. The discharge bracket may be disposed across the conveying mechanism 12 in a direction perpendicular to direction A. The discharge rods extend in a direction perpendicular to direction A and may rotate relative to the discharge bracket. Preferably, three discharge rods may be provided, which are circumferentially distributed around their rotation center, with adjacent discharge rods spaced apart. As the discharge rods rotate, the initial container protruding from the conveying mechanism 12 can be ejected onto the conveying assembly 144.

[0079] In a specific implementation, the conveying assembly 144 may include a conveyor belt, which may be located above the conveying mechanism 12 and transport goods in a direction perpendicular to direction A. The storage assembly 145 may be implemented as a rotary table. The conveyor belt of the conveying assembly 144 can temporarily transport leaking initial containers to the rotary table for storage. The products can then be manually removed from the rotary table.

[0080] After passing through the discharge mechanism 14, the leaking initial container is temporarily stored on the storage component 145, while the non-leaking initial container is transported by the conveying mechanism 12 to the bottom of the capping mechanism 15, where the capping mechanism 15 fastens the outer cap onto the non-leaking initial container.

[0081] In practice, the cover-fastening mechanism 15 can be implemented using various structures, and no restrictions are imposed here.

[0082] In one embodiment, the capping mechanism 15 may consist only of a snap-fit ​​assembly 151. The snap-fit ​​assembly 151 is used to perform a snap-fit ​​operation on the outer cap of the airtight initial container, such that the outer cap is fastened to the airtight initial container.

[0083] Specifically, refer to Figure 4 The snap-fit ​​assembly 151 may include a snap-fit ​​bracket 151a, a snap-fit ​​drive component 151b, and a snap-fit ​​head 151c. The snap-fit ​​bracket 151a may be positioned perpendicular to the conveying mechanism 12 along direction A. The snap-fit ​​drive component 151b may be fixed to the snap-fit ​​bracket 151a. The number of snap-fit ​​drive components may be the same as the number of conveying holes in a row of conveying holes, thereby allowing simultaneous snap-fit ​​operations on a row of initial containers. The snap-fit ​​drive component 151b may be implemented using a cylinder or other driving mechanism. One end of the snap-fit ​​drive component 151b may be connected to the snap-fit ​​head, thereby driving the snap-fit ​​head downwards to achieve the snap-fit ​​operation on the outer cover.

[0084] In a practical implementation, the snap-fit ​​drive component 151b can also be electrically connected to the leak detection mechanism 13, thereby receiving the leak detection result signal from the leak detection mechanism 13. Based on the leak detection result signal, it can then determine whether to drive the pressure head 151c to descend, that is, whether to perform a snap-fit ​​operation on the initially leak-free container. This reduces unnecessary driving and extends the service life of the snap-fit ​​assembly 151.

[0085] In practice, the outer cover is typically made of polyethylene (PE) or polypropylene (PP), with a thickness greater than that of the heat-sealed cover, usually between 100µm and 200µm. The outer cover can be circular or square, depending on the shape of the container opening on the container body. The outer cover can be fastened onto the initial container over the heat-sealed cover, thus providing further physical protection for the initial container.

[0086] In practice, the outer surface of the outer cover can be curved. For example, the outer surface of the outer cover can have a recess that protrudes towards the inner surface of the outer cover. Since the outer cover has a curved surface, it cannot be placed on top of the heat-sealed cap of the initial container by a suction cup. Therefore, in practical applications, the heat-sealed cap can be placed on top of the initial container manually first, and then the snap-fit ​​assembly 151 can perform the snap-fit ​​operation.

[0087] In a specific implementation, the outer surface of the outer cover can also be flat. In this case, the cover-fastening mechanism 15 may further include a suction cup. The suction cup can pick up the outer cover and place it on the airtight initial container. Since the outer surface of the outer cover is flat, the suction cup can more easily pick up the outer cover and prevent it from falling off, thereby improving the cover-fastening efficiency.

[0088] In practice, to further improve capping efficiency, refer to Figure 2 A container lid positioning structure 122 can be provided around the conveying hole 121 of the conveying mechanism 12. The container lid positioning structure 122 is used to define the position of the outer lid.

[0089] Specifically, when the outer cover is placed on the initial container, the container cover positioning structure 122 can be used to make the outer cover accurately placed on the initial container, thereby achieving precise positioning of the outer cover, further improving the efficiency of the outer cover, and enabling the outer cover to be better matched with the production line speed.

[0090] In one embodiment, reference is made to Figure 2 and Figure 5 The container lid positioning structure 122 may include a plurality of pins arranged circumferentially around the conveying hole. The pins protrude from the plane of the conveying hole. The area enclosed by the plurality of pins is the area where the outer cover 50 is allowed to be placed. Thus, when placing the outer cover 50, the pins can be used to determine the position where each outer cover 50 needs to be placed, and the pins can be used to limit the placement area of ​​the outer cover 50 on the aluminum strip, maintaining the flatness of the outer cover 50 on the aluminum strip.

[0091] In specific implementation, the height of the pin protruding from the plane of the transmission hole can be set according to the thickness of the outer cover, and the specific range can be from 15um to 30um, for example, it can be 18um, 20um, 25um or 30um.

[0092] Each delivery hole is surrounded by several circumferentially arranged pins, which enables precise placement of the outer cover, facilitates subsequent snap-fit ​​assembly operations, effectively improves production efficiency, and ensures the tightness of the snap-fit.

[0093] The production system described in this utility model embodiment can package double-lid convenience foods and ensure the product's airtightness, thus avoiding any impact on product quality due to poor sealing.

[0094] This utility model embodiment also provides a convenience food, which is obtained using the production system described in the above embodiment.

[0095] Specifically, taking instant noodles as an example, the convenience food may include a container and a noodle cake and seasoning packet located inside the container. The container includes: a container body, a heat-sealed lid heat-sealed onto the container body, and an outer lid covering the container body and the heat-sealed lid. The noodle cake can be placed directly inside the container after removing its packaging.

[0096] To prepare, first open the outer lid and tear open the heat-sealed lid, remove the spice packet, and pour hot water into the container. Once the amount of hot water is sufficient for brewing, close the heat-sealed lid, place the spice packet on the heat-sealed lid to preheat, and then close the outer lid again.

[0097] Using the above-mentioned convenient food products, the seasoning packets can be placed directly on the heat-sealed lid for preheating. The heat-sealed lid has better thermal conductivity, which allows the seasoning packets to be preheated to a higher temperature, resulting in a better consumer experience.

[0098] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A production system, characterized in that, include: Base; A conveying mechanism, mounted on the base, is used to transport the container body; A sealing mechanism, disposed on the base, is used to provide a heat-sealing cap and heat-seal the heat-sealing cap onto the container body to form an initial container; A leak detection mechanism is installed on the base and is used to perform a leak detection operation on the initial container to identify the leaking initial container and the non-leaking initial container. A discharge mechanism, disposed on the base, is used to discharge the leaking initial container; And a capping mechanism for fastening the outer cap onto the airtight initial container.

2. The production system as described in claim 1, characterized in that, The leak detection mechanism includes: a leak detection bracket, and a sensor assembly and a comparator mounted on the leak detection bracket; wherein: The sensor assembly is located above the conveying mechanism and is used to sense whether the initial container is leaking air, and to obtain the leak detection result. The comparator is used to compare the leak detection result with a preset threshold to obtain a leak detection result signal, wherein the leak detection result signal indicates that the currently detected initial container is either the leaking initial container or the non-leaking initial container.

3. The production system as described in claim 2, characterized in that, Also includes: A pre-compression mechanism, disposed on the base, is used to perform a pre-compression operation on the initial container, so that the leak detection mechanism performs a leak detection operation on the pre-compressed initial container.

4. The production system as described in claim 2, characterized in that, The discharge mechanism includes: a discharge control component, a lifting component, a discharge component, a conveying component, and a storage component; wherein: The lifting assembly includes a plurality of lifting components, which are located below the container bodies on the conveying mechanism; each container body on the conveying mechanism is provided with a lifting component below it. The conveying component is used to convey the leaking initial container to the storage component; The storage component is used to store the leaking initial container; The discharge control component is connected to the leak detection mechanism and is adapted to receive the leak detection result signal sent by the leak detection mechanism.

5. The production system as described in claim 4, characterized in that, When the leak detection result signal indicates that the initial container is the leaking initial container, the discharge control component controls the lifting member below the corresponding initial container to move so that the corresponding initial container protrudes from the conveying mechanism, and controls the discharge component to discharge the initial container protruding from the conveying mechanism onto the conveying component.

6. The production system as described in claim 5, characterized in that, The discharge assembly includes: The discharge bracket is located on the base and spans over the conveying mechanism; A plurality of discharge rods, rotatably connected to the discharge bracket, are used to discharge the initial container protruding from the conveying mechanism onto the conveying assembly.

7. The production system as described in claim 1, characterized in that, The conveying mechanism includes: a plurality of conveying holes for accommodating the container body, and a container lid positioning structure is provided around each conveying hole for defining the position of the outer lid.

8. The production system as described in claim 1, characterized in that, The cover fastening mechanism includes: A snap-fit ​​assembly for performing a snap-fit ​​operation on the outer cover of the airtight initial container, such that the outer cover is fastened to the airtight initial container; A feeding assembly for providing the outer cover to the airtight initial container.

9. The production system as described in claim 8, characterized in that, The feeding assembly includes a suction cup for picking up the outer cover and placing it on the airtight initial container.

10. A convenience food, characterized in that, The convenience food is obtained using the production system described in any one of claims 1 to 9.

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