Bacteriostatic device, flexible package production line and oyster sauce production process

Abstract

The invention discloses an antibacterial device, a flexible package production line and an oyster sauce production technology.The antibacterial device comprises a treatment unit and a separation unit, the treatment unit is used for compressing and purifying air to obtain gas, and the separation unit is connected with the treatment unit and used for separating the gas and extracting nitrogen; the nitrogen is used for carrying out antibacterial treatment on the seasonings. The treatment unit obtains clean gas by compressing and purifying air and cooperates with the separation unit to efficiently extract nitrogen, the nitrogen can be evenly injected into the complex space of the special-shaped flexible package to replace oxygen and can adapt to the irregular structure of the special-shaped flexible package bag, the microorganism breeding risk caused by oxygen residues is reduced, and the service life of the special-shaped flexible package bag is prolonged. The production quality and the food safety of the oyster sauce are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of condiment processing, in particular to an antibacterial device, a soft packaging production line with the antibacterial device, and an oyster sauce production process. Background Art

[0002] With increasing consumer demand for convenient and portable packaging, the use of custom-shaped flexible packaging bags for oyster sauce is becoming increasingly widespread. Custom-shaped flexible packaging's flexible design and lightweight construction make it easy to carry and store. Oyster sauce, a condiment primarily made from oysters, is rich in nutrients such as protein, amino acids, and carbohydrates. After production and filling, air can easily remain inside custom-shaped packaging, making it a breeding ground for microorganisms such as bacteria and mold. The growth of these microorganisms can lead to quality issues such as delamination, rancidity, and an off-flavor in the oyster sauce, damaging its flavor and taste while also posing a potential food safety risk. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an antibacterial device, which has the advantages of improving the antiseptic performance and production quality of condiments.

[0004] The present invention also provides a soft packaging production line and an oyster sauce production process having the above-mentioned antibacterial device.

[0005] The antibacterial device according to the first embodiment of the present invention includes: a processing unit for compressing and purifying air to obtain gas; A separation unit is connected to the processing unit, and is used to separate the gas and extract nitrogen, and the nitrogen is used to perform antibacterial treatment on the condiment.

[0006] The antibacterial device according to the present invention has at least the following beneficial effects: the processing unit compresses and purifies air to produce clean air, which, in conjunction with the separation unit, efficiently extracts nitrogen. This nitrogen is used to treat condiments for antibacterial purposes, adapting to the irregular structure of special-shaped flexible packaging bags. Nitrogen can be evenly injected into the complex spaces of the flexible packaging, displacing oxygen, reducing the risk of microbial growth caused by residual oxygen, and improving the production quality and food safety of oyster sauce.

[0007] According to the antibacterial device described in some embodiments of the present invention, the processing unit includes an air compressor and a gas storage tank assembly for storing gas, and the air compressor is provided with a connecting pipe connected to the gas storage tank assembly.

[0008] The bacteriostatic device according to some embodiments of the present application is provided with an air purification assembly and an oil removing device between the processing unit and the separation unit, the air purification assembly is used for cleaning the gas, and the oil removing device can remove oil in the gas.

[0009] The bacteriostatic device according to some embodiments of the present application is provided with an oxygen-nitrogen separation assembly and a nitrogen buffer tank assembly in the separation unit, the compressed gas is input into the oxygen-nitrogen separation assembly and is decomposed into the nitrogen and oxygen, and the nitrogen is input into the nitrogen buffer tank assembly.

[0010] The bacteriostatic device according to some embodiments of the present application is provided with a nitrogen detection device in the separation unit, the nitrogen detection device is connected with a first gas outlet pipe and a second gas outlet pipe, when the nitrogen detection device detects that the nitrogen meets the preset qualified standard, the nitrogen is discharged through the first gas outlet pipe, and when the nitrogen detection device detects that the nitrogen does not meet the preset qualified standard, the nitrogen is discharged through the second gas outlet pipe.

[0011] The bacteriostatic device according to some embodiments of the present application is provided with a filter and a flow meter between the nitrogen detection device and the nitrogen buffer tank assembly, the filter is used for filtering impurities in the nitrogen, and the flow meter is used for measuring the flow of the nitrogen.

[0012] The soft packaging production line according to the second embodiment of the present application comprises the bacteriostatic device and the water bath sterilization equipment according to the first embodiment of the present application, the bacteriostatic device is connected with a nitrogen filling device, and the nitrogen filling device is used for filling the nitrogen into the packaged product after filling. The water bath sterilization equipment and the nitrogen filling device are connected through a conveying belt, the water bath sterilization equipment comprises a sterilization box and a conveying assembly, the sterilization box is provided with an inlet and an outlet, the conveying belt is used for conveying the packaged product to the inlet, and the conveying assembly is used for conveying the packaged product from the inlet to the outlet.

[0013] The soft packaging production line according to some embodiments of the present application comprises the bacteriostatic device and the water bath sterilization equipment according to the first embodiment of the present application, the bacteriostatic device is connected with a nitrogen filling device, and the nitrogen filling device is used for filling the nitrogen into the packaged product after filling.

[0014] The soft packaging production line according to some embodiments of the present application comprises the bacteriostatic device and the water bath sterilization equipment according to the first embodiment of the present application, the bacteriostatic device is connected with a nitrogen filling device, and the nitrogen filling device is used for filling the nitrogen into the packaged product after filling.

[0015] The soft package production line has at least the following beneficial effects: the soft package production line forms a double preservative system of nitrogen filling and high-temperature sterilization by integrating the bacteriostatic device and the water bath sterilization equipment, greatly improving the preservative performance and production quality of the condiment.

[0016] The oyster sauce production process according to the third aspect of the present application comprises the bacteriostatic device according to the first aspect of the present application, and the specific steps are as follows: Filling, a preset mass of oyster sauce is injected into an outer packaging container through a filling device; Nitrogen preparation and filling, a bacteriostatic device is used, the bacteriostatic device is connected with a nitrogen filling device, and the nitrogen filling device fills nitrogen into the outer packaging container after filling; Nozzle washing and blowing, the packaging opening of the outer packaging container is washed, and the moisture at the packaging opening is blown dry, so that the packaging opening is clean and dry; Capping, after the nozzle washing and blowing, a lid is used to cap the outer packaging container, so that the inside of the outer packaging container is sealed, and a packaging product is obtained; Single-branch weighing, the packaging product is weighed by a weighing scale, and the packaging product with a weight less than a preset weight is rejected, so that a qualified product is obtained; Water bath sterilization, the qualified product is subjected to water bath sterilization, and the qualified product stays in the water bath sterilization equipment for a preset time; Cooling, after the water bath sterilization step, the qualified product is conveyed to a cooling water cage through a conveyor belt, and the temperature of the qualified product is reduced to room temperature; Single-branch code spraying, product information is sprayed on the outer packaging surface of each bottle of the qualified product after cooling; Packaging, the qualified product after single-branch code spraying is collectively packaged according to a preset number.

[0017] The oyster sauce production process according to the third aspect of the present application has at least the following beneficial effects: nitrogen preparation and filling and multi-link processing are integrated to form a bacteriostatic and sterilization process suitable for irregular soft packaging. Nitrogen preparation and filling replace residual oxygen to inhibit the growth of microorganisms, nozzle washing and blowing and capping ensure sealing, and single-branch weighing ensures net content compliance. Water bath sterilization and nitrogen filling form a double guarantee to inhibit and kill microorganisms to the greatest extent, effectively preventing oyster sauce from deteriorating.

[0018] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which: Figure 1 This is a structural block diagram of an antibacterial device according to an embodiment of the present invention; Figure 2 for Figure 1 A top view of the separation unit is shown; Figure 3 A schematic structural diagram of a conveying assembly according to a second aspect of the present invention; Figure 4 for Figure 3 An enlarged view of A is shown; Figure 5 A top view of a water bath sterilization device according to a second embodiment of the present invention; Figure 6 This is a top view of a cooling water cage according to an embodiment of the second aspect of the present invention.

[0020] Description of Figure Numbers: Processing unit 100; air compressor 110; air storage tank assembly 120; air purification assembly 130; oil remover 140; Separation unit 200; oxygen and nitrogen separation assembly 210; nitrogen buffer tank assembly 220; nitrogen detection device 230; first outlet pipe 231; second outlet pipe 232; filter 240; flow meter 250; air inlet 260; air outlet 270; Water bath sterilization equipment 300; sterilization box 310; feed port 311; discharge port 312; conveying assembly 320; first conveyor belt 321; second conveyor belt 322; conveying space 323; tensioning wheel 324; Conveyor belt 400; Cooling water cage 500; water absorbing sponge machine 510. DETAILED DESCRIPTION

[0021] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0022] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by the upper, lower, front, rear, left, right and the like, is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0023] In the description of the present application, one or more is understood as one or more, more than two is understood as more than two, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If the first, second is described, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the sequence of technical features indicated.

[0024] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting and the like should be broadly understood, and those skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0025] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present application. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0026] In the related art, the bacteriostatic treatment of oyster sauce mainly includes traditional hot filling and top gap bacteriostasis. The traditional hot filling mechanism is to directly fill the high-temperature oyster sauce into the package, kill part of the microorganisms in the package by using the residual heat, and realize sealing. For the special-shaped soft packaging bag, high temperature is easy to cause the bag body material to be deformed by heat, the sealing performance to be reduced, and the soft packaging bag body to be difficult to withstand continuous high temperature, which is easy to cause problems such as scalding, leakage and the like. The top gap bacteriostasis is to control the filling amount and reserve a certain air gap at the top of the package. The volume of the space gap is relatively fixed, and the air or inert gas in the gap is used to form a bacteriostatic environment. However, the bag body of the special-shaped soft packaging bag is soft, the top gap volume changes with the bag type, and the irregular shape causes uneven distribution of the top gap, which is difficult to form a uniform bacteriostatic atmosphere.

[0027] Therefore, as Figure 1As shown, the bacteriostatic device provided by the application comprises a treatment unit 100 and a separation unit 200. The treatment unit 100 is used for compressing and purifying air to obtain gas. The treatment unit 100 inhales air from the outside, and the air pressure is raised to the working pressure required by the separation unit 200, usually 0.6-1.0 MPa, to provide a power basis for the subsequent separation process. The separation unit 200 is connected with the treatment unit 100. The separation unit 200 is used for separating the gas and extracting nitrogen, which is used for bacteriostatic treatment of condiments. The generated nitrogen can be filled into the inside of the package of condiments to reduce the oxygen content in the inside of the package. The nitrogen can be uniformly injected into the complex space of the irregular soft packaging bag to replace oxygen, reduce the risk of microbial breeding caused by residual oxygen, and improve the production quality and food safety of oyster sauce.

[0028] In some embodiments of the application, as shown in Figure 1 The treatment unit 100 comprises an air compressor 110 and a gas storage tank assembly 120 for storing gas. The air compressor 110 can be a piston type, screw type or scroll type. The air inlet 260 of the air compressor 110 is connected with the outside atmosphere through a pipeline. The internal compression mechanism compresses the inhaled air to a pressure range of 0.7-1.0 MPa through mechanical work. The gas storage tank assembly 120 is a vertical gas storage tank. The air compressor 110 is provided with a connecting pipe in communication with the gas storage tank assembly 120. The output end of the air compressor 110 is sealingly connected with one end of the connecting pipe. The gas storage tank can store fluctuating compressed air through volume buffering, so that the gas pressure output to the subsequent separation unit 200 remains stable. Moreover, the gas storage tank can store a certain amount of compressed air. When the air compressor 110 is temporarily shut down or the gas production is insufficient, the gas storage tank can supply gas to the separation unit 200 in time, avoiding production stagnation caused by interruption of the gas source. Through the synergistic effect of the air compressor 110, the connecting pipe and the gas storage tank assembly 120, the treatment unit 100 can continuously provide the separation unit 200 with compressed air with stable pressure and preliminary purification, laying a reliable foundation for the nitrogen extraction process.

[0029] In some embodiments of the application, as shown in Figure 1As shown, the air purification assembly 130 and the oil remover 140 are arranged between the processing unit 100 and the separation unit 200, and the oil remover 140 is connected in series between the air purification assembly 130 and the separation unit 200. The air purification assembly 130 is used for clean gas, and the air purification assembly 130 includes a filter screen that can intercept solid particle impurities and remove odors and organic volatile substances by combining activated carbon adsorption, so that the cleanliness of the gas entering the subsequent link is greatly improved, and pure raw gas is provided for nitrogen-oxygen separation. The oil remover 140 can remove oil in the gas. The oil remover 140 can separate large oil droplets by centrifugal force, and then adsorb small oil mist by an oleophilic filter core, so that the oil content in the gas can be reduced, the oil in the compressed air can be removed, and the oil in the gas can be prevented from entering the separation unit 200. By deeply purifying and removing impurities and oil in the gas, the interference of these substances on the nitrogen-oxygen separation process is reduced, favorable conditions are created for the separation unit 200 to extract high-purity nitrogen gas, and then the nitrogen gas filled can effectively inhibit the breeding of microorganisms in oyster oil, and the product preservation effect is ensured.

[0030] In some embodiments of the present application, as shown in Figure 1 and Figure 2 As shown, the separation unit 200 includes an oxygen-nitrogen separation assembly 210 and a nitrogen gas buffer tank assembly 220, and the compressed gas is input into the oxygen-nitrogen separation assembly 210. The oxygen-nitrogen separation assembly 210 efficiently separates the pretreated compressed air into nitrogen and oxygen, that is, the oxygen-nitrogen separation assembly 210 can decompose the compressed air into high-purity nitrogen and oxygen-rich waste gas, wherein the oxygen-rich waste gas is discharged through a gas outlet, and the nitrogen is transported to the subsequent nitrogen gas buffer tank assembly 220. The nitrogen is transported to the nitrogen gas buffer tank assembly 220, and the nitrogen gas buffer tank assembly 220 temporarily stores and stabilizes the pressure of the nitrogen output by the oxygen-nitrogen separation assembly 210. The nitrogen gas buffer tank assembly 220 can absorb such pressure fluctuations by volume buffering, so that the pressure of the output nitrogen is kept stable, for example, at 0.4 to 0.6 MPa. At the same time, the nitrogen gas buffer tank assembly 220 can store a certain amount of nitrogen, which can be quickly released to avoid insufficient gas supply due to the response lag of the oxygen-nitrogen separation assembly 210.

[0031] In some embodiments of the present application, as shown in Figure 1As shown, the separation unit 200 includes a nitrogen detection device 230, which is connected to a first air outlet pipe 231 and a second air outlet pipe 232. When the nitrogen detection device 230 detects that the nitrogen meets the preset qualification standard, it controls the corresponding valve or passage structure to open, and the nitrogen is discharged through the first air outlet pipe 231. When it is detected that the nitrogen does not meet the preset qualification standard, another valve or passage structure is controlled to open, and the nitrogen is discharged through the second air outlet pipe 232. The nitrogen detection device 230 can prevent excessive oxygen residue in the package and aggravated microbial reproduction due to nitrogen quality problems, thereby reducing the quality risks of oyster sauce deterioration, flavor deterioration, etc. In some application scenarios, the nitrogen discharged from the first air outlet pipe 231 can reach a purity of 99.9%. High-purity nitrogen effectively inhibits the growth of microorganisms in oyster sauce and ensures the anti-corrosion effect of the product.

[0032] In some embodiments of the present invention, Figure 1 As shown, a filter 240 and a flow meter 250 are provided between the nitrogen detection device 230 and the nitrogen buffer tank assembly 220. The filter 240 is used to filter impurities in the nitrogen and can remove any residual impurities such as molecular sieve particles and pipe rust debris before nitrogen detection. The filter 240 ensures the cleanliness of the nitrogen entering the nitrogen detection device 230, preventing qualified nitrogen from being misjudged or unqualified nitrogen from being missed due to interference from impurities, thereby ensuring the reliability of the subsequent nitrogen filling and antibacterial effect. The flow meter 250 is used to measure the flow rate of nitrogen. By measuring the amount of nitrogen passing through per unit time, it provides a monitoring basis for the stability of the nitrogen supply and provides a reference for adjusting the parameters of the nitrogen filling device. It is understandable that the nitrogen detection device 230 can be connected to the nitrogen filling device. The flow meter 250 enables the nitrogen filling device to adjust the nitrogen filling pressure and duration based on real-time flow data, ensuring that the nitrogen filling amount of each bag of oyster sauce is accurate and consistent, and avoiding insufficient or excessive nitrogen filling in some packages due to unstable flow rate.

[0033] Special-shaped flexible sauce packaging features easy-to-open and easy-to-close seals, and its lightweight design makes it convenient for portability and storage, making it popular among consumers. Special-shaped flexible sauce packaging is typically sterilized in waterbaths. However, due to the presence of internal gas and the irregular shape of special-shaped flexible packaging, it tends to float during transportation, resulting in incomplete sterilization. Furthermore, the residence time is difficult to control, affecting sterilization effectiveness and production quality.

[0034] For this reason, Figures 2 to 6As shown in the soft package production line of the second embodiment of the present application, the bacteriostatic device of the first embodiment of the present application and the water bath sterilization equipment 300 are included, the bacteriostatic device is connected with the nitrogen filling device, the nitrogen filling device is used for filling nitrogen into the filled packaging products, so as to reduce the internal oxygen content of the packaging products. The water bath sterilization equipment 300 is connected with the nitrogen filling device through the conveying belt 400, the water bath sterilization equipment 300 includes the sterilization box 310 and the conveying assembly 320, the sterilization box 310 is connected with the plate heat exchanger, the plate heat exchanger is used for maintaining the temperature of the water flow in the sterilization box 310, ensuring that the water flow temperature in the sterilization box 310 is always maintained in a set range, and guaranteeing the stability of the sterilization process. The sterilization box 310 is provided with the feeding port 311 and the discharging port 312, the conveying belt 400 conveys the packaging products to the feeding port 311, and the conveying assembly 320 is used for conveying the packaging products from the feeding port 311 to the discharging port 312. The conveying assembly 320 can press and convey the materials, so as to avoid the materials floating out of the water surface, can make the materials keep sufficient soaking, and thus improve the sterilization effect.

[0035] In some embodiments of the present application, as shown in the soft package production line of the second embodiment of the present application, Figures 3 to 5 As shown, the conveying assembly 320 includes the first conveying belt 321 and the second conveying belt 322, and further includes two driving members, which are motors. The first conveying belt 321 and the second conveying belt 322 form a conveying space 323 therebetween, and the conveying space 323 is arranged inside the sterilization box 310. The two driving members drive the first conveying belt 321 and the second conveying belt 322 to press and convey the materials respectively. The first conveying belt 321 and the second conveying belt 322 can press and convey the materials on both sides respectively, so as to avoid the materials floating out of the water surface, can make the materials keep sufficient soaking, and thus improve the sterilization effect. Meanwhile, the transmission speeds of the first conveying belt 321 and the second conveying belt 322 are controlled by the two driving members respectively, so as to control the consistent residence time of each batch of materials in the sterilization box 310, avoid incomplete sterilization of the materials due to inconsistent residence time, and improve the product quality stability.

[0036] In some embodiments of the present application, as shown in the soft package production line of the second embodiment of the present application, Figures 3 to 5 The first conveying belt 321 is close to the bottom of the sterilization box 310, and the second conveying belt 322 is arranged on the side of the first conveying belt 321 facing the materials, that is, the first conveying belt 321 is located below the second conveying belt 322. The first conveying belt 321 and the second conveying belt 322 move synchronously, not only reducing the material abrasion or jam caused by speed difference, but also keeping the materials stable during the conveying process, avoiding sliding or accumulation.

[0037] In some embodiments of the present application, as shown in the soft package production line of the second embodiment of the present application, Figures 3 to 5As shown, the first conveyor belt 321 is a gridded chain plate, and the second conveyor belt 322 is a belt. The belt is soft and flexibly contacts the material, reducing wear on the material surface during conveyance. Multiple second conveyor belts 322 are provided, spaced apart along the width of the sterilization chamber 310. Water within the sterilization chamber 310 can flow freely between the belts, maintaining smooth water circulation. The multiple second conveyor belts 322 are synchronously driven by a drive element to maintain the same speed as the first conveyor belt 321, ensuring consistent speed and preventing material deflection or wear.

[0038] Furthermore, it should be noted that the first conveyor belt 321 comprises a mesh chain plate. The chain plate shell is made of stainless steel, capable of stably carrying the weight of the material and withstanding the pressure during clamping, while also withstanding the long-term erosion of hot water environments. The width of the mesh chain plate is smaller than that of the sterilization chamber 310. The mesh chain plate has a hollow structure, allowing the water in the sterilization chamber 310 to flow freely, ensuring sufficient contact between the material and the water.

[0039] The flexible packaging production line according to the present invention has at least the following beneficial effects: By integrating the antibacterial device with the water bath sterilization equipment 300, the flexible packaging production line forms a dual antiseptic system of nitrogen filling and high-temperature sterilization, significantly improving the antiseptic performance and production quality of condiments. The high-purity nitrogen generated by the antibacterial device is injected into the custom-shaped flexible packaging through the nitrogen filling device, effectively suppressing the growth of aerobic microorganisms. The water bath sterilization equipment 300, via the conveyor assembly 320, delivers the nitrogen-filled packaged products in an orderly manner into the sterilization chamber 310, where the stable high-temperature environment kills any remaining microorganisms. The synergistic effect of these two systems significantly improves the condiment's antiseptic properties.

[0040] The oyster sauce production process of the third embodiment of the present invention includes the antibacterial device of the first embodiment of the present invention, and the specific steps are as follows: filling, nitrogen production and filling, mouthwash and blowing, capping, single weighing, water bath sterilization, cooling, single coding and packaging.

[0041] Filling: Use filling equipment to inject the preset mass of oyster sauce into the outer packaging container.

[0042] Nitrogen production and filling use an antibacterial device that can prepare nitrogen with a purity of ≥99.9%. The antibacterial device is connected to a nitrogen filling device, which is connected to the filling equipment. The nitrogen filling device fills nitrogen into the outer packaging container after filling.

[0043] Wash and blow the mouthpiece. You can use clean water or a special detergent to rinse the packaging opening of the outer packaging container to remove any remaining stains and blow dry the moisture at the packaging opening to make it clean and dry. Washing and blowing the mouthpiece at the packaging opening can prevent stains from affecting the sealing of the cap and prevent the moisture from breeding microorganisms after sealing.

[0044] After the mouth blowing, the cover is used to cover the outer packaging container. The automatic capping equipment is used to cap the cover of the matching size on the opening of the soft package. A certain capping pressure is set, and the pressure holding time is 2-3 seconds to ensure that the cover is tightly attached to the opening, so that the inside of the outer packaging container is sealed to obtain the packaged product. The inside of the outer packaging container is sealed to prevent external air, moisture and microorganisms from entering the container, while preventing oyster sauce leakage and maintaining the nitrogen environment in the container.

[0045] Single weighing, the weight of the single bottle of oyster sauce after capping is detected, and the packaged product is weighed by the weighing scale. The packaged product with a weight less than the preset weight is rejected to obtain qualified products. The unqualified products with a weight exceeding or less than the preset standard are screened out to ensure that the net content of the products meets the requirements.

[0046] Water bath sterilization, the qualified products that pass the single weighing are sent to the water bath sterilization equipment 300, such as the water bath sterilization equipment 300 described above. The sterilization box 310 in the equipment is equipped with a certain temperature. The qualified products pass through the water bath sterilization equipment 300, and the qualified products stay in the water bath sterilization equipment 300 for a preset time, such as 10-30 minutes, to kill the heat-resistant microorganisms that may remain in the products by high temperature, further improve the safety and shelf life of the products, and form a double protection with the previous nitrogen filling and sterilization.

[0047] Cooling, after the water bath sterilization step, the qualified products are conveyed by the conveyor belt 400 to the cooling water cage 500 for cooling, and the temperature of the qualified products is reduced to near room temperature; the product temperature is reduced to near room temperature. Avoiding the continuous influence of high temperature on the quality of the product, facilitating the subsequent code spraying and packaging operation. The cooling water cage 500 is also connected with the water absorbing sponge machine 510, which can absorb the residual water of the qualified products cooled by the cooling water cage 500, so as to keep the outer surface of the package dry.

[0048] Single code spraying, the outer packaging surface of each bottle of qualified product after cooling is sprayed with product information. The product information is sprayed by the code spraying equipment, including production date, shelf life, production batch number, anti-counterfeit code, etc. The code spraying needs to be clear and firm, which is convenient for consumers to identify and trace product information, and meets the requirements of food safety supervision.

[0049] Packaging, the qualified products after single code spraying are packaged in a preset number, such as 12 bottles or 24 bottles per box, etc. Paper boxes, plastic wrapping films and other packaging materials are used to complete the boxing and sealing operations by boxing machines and sealing machines. The packaging needs to be firm to protect the products from damage during transportation and storage, and facilitate warehouse management and market circulation.

[0050] According to the oyster sauce production process of the third aspect of the present application, at least the following beneficial effects are achieved: the nitrogen production and nitrogen filling are integrated with the multi-link processing to form a bacteriostatic and sterilization process suitable for the special-shaped soft package. The residual oxygen is replaced by the self-produced nitrogen to inhibit the growth of microorganisms. The mouth and nozzle washing and the capping ensure the sealing. The single-branch weighing ensures the net content compliance. The water bath sterilization and the nitrogen filling form a double protection to inhibit and kill the microorganisms to the greatest extent and effectively prevent the oyster sauce from deteriorating.

[0051] Other configurations and operations of the soft package production line and the oyster sauce production process according to the embodiments of the present application are known to those skilled in the art and will not be described in detail here.

[0052] The embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the above embodiments. Various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present application.

Claims

1. Antibacterial device, characterized in that, include: a processing unit for compressing and purifying air to obtain gas; A separation unit is connected to the processing unit, and is used to separate the gas and extract nitrogen, and the nitrogen is used to perform antibacterial treatment on the condiment.

2. The antibacterial device according to claim 1, characterized in that: The processing unit includes an air compressor and a gas storage tank assembly for storing gas. The air compressor is provided with a connecting pipe communicating with the gas storage tank assembly.

3. The antibacterial device according to claim 2, characterized in that: An air purification component and a deoiler are provided between the processing unit and the separation unit. The air purification component is used to clean the gas, and the deoiler can remove oil from the gas.

4. The antibacterial device according to claim 1, characterized in that: The separation unit includes an oxygen-nitrogen separation component and a nitrogen buffer tank component. The compressed gas is input into the oxygen-nitrogen separation component to be decomposed into the nitrogen and oxygen. The nitrogen is input into the nitrogen buffer tank component.

5. The antibacterial device according to claim 4, characterized in that: The separation unit includes a nitrogen detection device, which is connected to a first outlet pipe and a second outlet pipe. When the nitrogen detection device detects that the nitrogen meets a preset qualification standard, the nitrogen is discharged through the first outlet pipe. When the nitrogen detection device detects that the nitrogen does not meet the preset qualification standard, the nitrogen is discharged through the second outlet pipe.

6. The antibacterial device according to claim 5, characterized in that: A filter and a flow meter are provided between the nitrogen detection device and the nitrogen buffer tank assembly. The filter is used to filter impurities in the nitrogen, and the flow meter is used to measure the flow of the nitrogen.

7. Flexible packaging production line, characterized by: include: The antibacterial device according to any one of claims 1 to 6, wherein the antibacterial device is connected to a nitrogen filling device, and the nitrogen filling device is used to fill the nitrogen into the packaged product after filling; The water bath sterilization equipment is connected to the nitrogen filling device through a conveyor belt. The water bath sterilization equipment includes a sterilization box and a conveying component. The sterilization box is provided with an inlet and an outlet. The conveyor belt conveys the packaged products to the inlet, and the conveying component is used to convey the packaged products from the inlet to the outlet.

8. The flexible packaging production line according to claim 7, characterized in that: The conveying assembly includes a first conveying belt and a second conveying belt. A conveying space is formed between the first conveying belt and the second conveying belt. The conveying space is arranged inside the sterilization box.

9. The flexible packaging production line according to claim 8, characterized in that: The first conveyor belt is a grid chain plate, and the second conveyor belt is a belt.

10. The oyster sauce production process is characterized in that: The following steps are involved: Filling: pouring the preset mass of oyster sauce into the outer packaging container through the filling equipment; Nitrogen production and filling, using the antibacterial device according to any one of claims 1 to 6, wherein the antibacterial device is connected to a nitrogen filling device, and the nitrogen filling device fills nitrogen into the outer packaging container after filling; Wash and blow the mouthpiece to rinse the packaging opening of the outer packaging container and blow dry the moisture at the packaging opening to make the packaging opening clean and dry; Sealing: After washing and blowing the mouthpiece, the outer packaging container is covered with a lid to seal the interior of the outer packaging container to obtain a packaged product; Single weighing: weigh the packaged products one by one through a checkweigher, and remove the packaged products that are less than a preset weight to obtain qualified products; Water bath sterilization, passing the qualified products through a water bath sterilization device, where the qualified products stay in the water bath sterilization device for a preset time; After cooling and water bath sterilization steps, the qualified products are transported to a cooling water cage via a conveyor belt to cool the qualified products down to room temperature; Single-piece inkjet coding, printing product information on the outer packaging surface of each bottle of qualified product after cooling; Packaging: The qualified products after single coding are collectively packaged according to the preset quantity.

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