Intelligent food fresh-keeping packaging equipment

Abstract

The invention belongs to the technical field of food processing, and discloses intelligent food fresh-keeping packaging equipment which comprises an equipment shell, a full-process automatic control system, a packaging structure and a conveying device. Through four-stage treatment of the air purification module, three-stage treatment of the water purification module and RO reverse osmosis treatment, multi-dimensional interception, adsorption, filtration and sterilization, the number of air colonies is smaller than or equal to 5 CFU / m < 3 >, the water conductivity is smaller than or equal to 1 microsecond / cm, microorganisms and pollutants are removed from the source, and a safe foundation is built for food processing. Low-temperature plasma and ultrahigh-pressure synergistic sterilization greatly improves the escherichia coli killing rate, greatly shortens the ultrahigh-pressure sterilization time, is efficient, does not damage the food quality, and greatly improves the food hygiene level, and the intelligent controlled atmosphere fresh-keeping system customizes a gas environment for different foods through two-stage gas separation, precise humidity regulation and control and three-layer composite film packaging. The ethylene concentration is reduced from 10 ppm to 2 ppm or below within 24 hours, and food respiration and microorganism breeding are inhibited; the intelligent sensing closed loop optimizes fresh-keeping parameters in real time, the freshness and shelf life of food are remarkably prolonged, deterioration loss is reduced, an automatic conveying and control system achieves full-process automation of material conveying, carrying and processing, a servo motor and a six-axis mechanical arm are matched, the positioning precision is high, the processing speed is high, manual intervention is reduced, and actual application and operation are facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of food processing, and in particular to intelligent food fresh-keeping packaging equipment. Background Art

[0002] Food processing refers to the grain milling, feed processing, vegetable oil and sugar processing, slaughtering and meat processing, aquatic product processing, as well as the processing of vegetables, fruits and nuts, as well as potato and dehydrated vegetable processing, and vegetable canning activities that directly use agricultural, forestry, animal husbandry and fishery products as raw materials. It is a type of agricultural product processing industry in a broad sense.

[0003] However, in the actual application of existing equipment, the external air contains pollutants such as dust and formaldehyde, and the tap water contains bacteria, impurities and minerals. If the pretreatment is not thorough, it is easy to introduce microbial and chemical pollution, threatening food hygiene and safety. Traditional sterilization relies on high temperature and chemical agents, which can easily destroy the nutrition and taste of food; single low-temperature sterilization or high-pressure treatment has the problems of incomplete sterilization and low efficiency. In the food processing process, the raw material transportation, sterilization treatment, preservation and packaging and other links rely on manual operation, which has the problems of low efficiency, large errors, and health hazards (artificial contact contamination), which is not conducive to actual application and operation. Summary of the Invention

[0004] One of the purposes of the present invention is to provide an intelligent food fresh-keeping packaging device.

[0005] To achieve the above objectives, the present invention adopts the following technical solutions: intelligent food preservation and packaging equipment, including an equipment housing, a full-process automated control system, a packaging structure, and a conveying device; the full-process automated control system includes a pretreatment system, an air purification module, a water purification module, a low-temperature plasma activation system, an ultra-high pressure treatment system, an intelligent atmosphere-controlled preservation system, an automated conveying and control system, and a finished product output device;

[0006] Mounting slots are equidistantly provided at the lower portion of the interior of the device housing, and corresponding air purification devices, water purification devices, low-temperature plasma activation devices, ultra-high pressure treatment devices, and intelligent controlled atmosphere preservation devices are installed and connected to the interior of the mounting slots. Release pipes are equidistantly and fixedly connected to the interior of the device housing, and the release pipes are used in conjunction with the corresponding air purification devices, water purification devices, low-temperature plasma activation devices, ultra-high pressure treatment devices, and intelligent controlled atmosphere preservation devices. A control panel is installed and connected to the outside of the housing;

[0007] The conveying device is located at the top of the inner wall of the shell, and the conveying device includes a slide groove, a threaded rod, a threaded block, a mechanical arm, and a mechanical claw. The top of the inner wall of the shell is provided with a slide groove, the inner part of the slide groove is rotatably connected to the threaded rod, the outer side of the threaded rod is threadedly connected to the threaded block, the bottom of the threaded block is installed and connected to the mechanical arm, the end of the mechanical arm away from the threaded block is installed and connected to the mechanical claw, and the threaded rod is fixedly connected to the output shaft of the external servo motor;

[0008] The packaging structure includes a detachable mold assembly. The mold has high-frequency vibration and 180-degree rotation. The mold shape can be quickly changed according to the size of the packaging box or bag.

[0009] Preferably, it comprises an air purification module and a water purification module, the low-temperature plasma activation system is connected to the pretreatment system, the ultra-high pressure treatment system is connected to the low-temperature plasma activation system, the intelligent controlled atmosphere preservation system is connected to the ultra-high pressure treatment system, the automatic transmission and control system runs through the pretreatment system, the low-temperature plasma activation system, the ultra-high pressure treatment system and the intelligent controlled atmosphere preservation system, and the full-process automatic control system is respectively connected to the pretreatment system, the low-temperature plasma activation system, the ultra-high pressure treatment system, the intelligent controlled atmosphere preservation system, and the automatic transmission and control system.

[0010] Preferably, the air purification module adopts a four-stage treatment, and the air purification module includes a primary filter, a honeycomb activated carbon layer, a HEPA filter element, and a UV-C deep ultraviolet cavity.

[0011] Preferably, the water purification module adopts three-stage treatment and RO reverse osmosis membrane treatment, and the water purification module comprises a PP cotton filter element, a PVDF ultrafiltration membrane filter element, an activated carbon filter element, an RO reverse osmosis membrane and a conductivity sensor.

[0012] Preferably, the hardware and core components of the low-temperature plasma activation system include a plasma generator, a Venturi mixing chamber, an ozone sensor and a conductivity sensor.

[0013] Preferably, the key components of the ultra-high pressure treatment system include compressor boosting and pressure chamber treatment, and its sterilization mechanism is cell membrane destruction and enzyme activity inhibition.

[0014] Preferably, the gas control technology of the intelligent atmosphere-controlled preservation system includes two-stage gas separation, precise control components, an intelligent sensor network and a three-layer composite film, wherein the three-layer composite film comprises an outer PET film, a middle PP nano-composite film and an inner LDPE film.

[0015] Preferably, the mechanical transmission of the automated transmission and control system includes an intelligent conveyor line and a six-axis collaborative robot, and its intelligent control includes a PLC main control system and a human-computer interaction interface.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) The present invention uses a four-stage air purification module and a three-stage water purification module + RO reverse osmosis treatment, multi-dimensional interception, adsorption, filtration, and sterilization to make the air colony count ≤5 CFU / m 3 , water conductivity ≤ 1μS / cm, eliminating microorganisms and contaminants at the source, laying a solid safety foundation for food processing. Low-temperature plasma and ultra-high pressure sterilization work together to significantly improve the killing rate of E. coli and greatly shorten the ultra-high pressure sterilization time. It is efficient and does not damage food quality, greatly improving food hygiene. The intelligent controlled atmosphere preservation system uses two-stage gas separation, precise humidity control and three-layer composite film packaging to customize the gas environment for different foods. The ethylene concentration drops from 10ppm to below 2ppm within 24 hours, inhibiting food respiration and microbial growth; the intelligent sensing closed loop optimizes preservation parameters in real time, significantly extending the freshness and shelf life of food, and reducing spoilage loss. The automated transmission and control system realizes the automation of the entire process of material transportation, handling and processing. The servo motor and six-axis robotic arm cooperate to achieve high positioning accuracy and fast processing speed, reducing manual intervention.

[0018] (2) The present invention reduces labor costs and management difficulty through dynamic parameter adjustment and fault self-processing of the PLC main control system, one-click switching of recipes on the human-computer interaction interface, and remote operation and maintenance on the IoT platform, which meets the unmanned production needs of Industry 4.0 and improves production efficiency and stability. The equipment is constructed in a modular manner (independent modules such as air purification, water purification, and plasma activation). Each module cooperates with the conveying system through the release pipe and can be flexibly adapted to different food processing production lines; different food processing recipes are preset and intelligently controlled to accurately match diversified production needs, helping enterprises to quickly respond to the market and improve the scope of application of the equipment and the return on investment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention.

[0021] Figure 3 It is a schematic structural diagram of the conveying device of the present invention.

[0022] Figure 4 It is a schematic diagram of the flow of the full-process automation control system of the present invention.

[0023] Figure 5 It is a structural schematic diagram of the air purification module of the present invention.

[0024] Figure 6 It is a schematic structural diagram of the water purification module of the present invention.

[0025] Figure 7 It is a structural schematic diagram of the low-temperature plasma activation system of the present invention.

[0026] Figure 8 It is a structural schematic diagram of the ultra-high pressure treatment system of the present invention.

[0027] Figure 9 This is a structural diagram of the intelligent atmosphere-controlled fresh-keeping system of the present invention.

[0028] Figure 10 It is a schematic diagram of the structure of the automatic transmission and control system of the present invention.

[0029] In the figure: 1. Equipment housing; 2. Conveying device; 201. Slide; 202. Threaded rod; 203. Threaded block; 204. Robotic arm; 205. Robotic claw; 3. Control panel; 4. Mounting slot; 5. Air purification device; 6. Water purification device; 7. Low-temperature plasma activation device; 8. Ultra-high pressure treatment device; 9. Intelligent controlled atmosphere preservation device. DETAILED DESCRIPTION

[0030] The present invention will be further described below in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0031] In the description of the present invention, it should be noted that, for directional words, such as the terms "center", "horizontal", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific scope of protection of the present invention.

[0032] It should be noted that the terms "first" and "second" in the description and claims of the present invention are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0033] One of the preferred embodiments of the present invention is as follows Figures 1 to 10 As shown, the intelligent food preservation and packaging equipment includes an equipment housing 1, a full-process automated control system, a packaging structure, and a conveying device 2. The full-process automated control system includes a pretreatment system, an air purification module, a water purification module, a low-temperature plasma activation system, an ultra-high pressure treatment system, an intelligent atmosphere-controlled preservation system, an automated conveying and control system, and finished product output.

[0034] Mounting slots 4 are equidistantly provided at the lower portion of the interior of the equipment housing 1. Corresponding air purification devices 5, water purification devices 6, low-temperature plasma activation devices 7, ultrahigh-pressure treatment devices 8, and intelligent controlled atmosphere preservation devices 9 are installed and connected to the interior of the mounting slots 4. Release tubes are equidistantly fixedly connected to the interior of the equipment housing 1. The release tubes are used in conjunction with the corresponding air purification devices 5, water purification devices 6, low-temperature plasma activation devices 7, ultrahigh-pressure treatment devices 8, and intelligent controlled atmosphere preservation devices 9. A control panel 3 is installed and connected to the outside of the housing 1.

[0035] The conveying device 2 is located at the top of the inner wall of the shell 1. The conveying device 2 includes a slide 201, a threaded rod 202, a threaded block 203, a robotic arm 204, and a robotic claw 205. The top of the inner wall of the shell 1 is provided with a slide 201. The inner part of the slide 201 is rotatably connected to the threaded rod 202. The outer side of the threaded rod 202 is threadedly connected to the threaded block 203. The bottom of the threaded block 203 is installed and connected to the robotic arm 204. The end of the robotic arm 204 away from the threaded block 203 is installed and connected to the robotic claw 205. The threaded rod 202 is fixedly connected to the output shaft of the external servo motor.

[0036] The packaging structure includes a detachable mold assembly. The mold has high-frequency vibration and 180-degree rotation. The mold shape can be quickly changed according to the size of the packaging box or bag.

[0037] It includes an air purification module and a water purification module, a low-temperature plasma activation system connected to a pretreatment system, an ultra-high pressure treatment system connected to a low-temperature plasma activation system, an intelligent controlled atmosphere preservation system connected to an ultra-high pressure treatment system, an automatic transmission and control system that runs through the pretreatment system, low-temperature plasma activation system, ultra-high pressure treatment system and intelligent controlled atmosphere preservation system, and a full-process automatic control system that is respectively connected to the pretreatment system, low-temperature plasma activation system, ultra-high pressure treatment system, intelligent controlled atmosphere preservation system and automatic transmission and control system.

[0038] The air purification module adopts four-stage treatment, and the air purification module includes a primary filter, a honeycomb activated carbon layer, a HEPA filter element, and a UV-C deep ultraviolet cavity.

[0039] The water purification module adopts three-stage treatment and RO reverse osmosis membrane treatment. The water purification module includes PP cotton filter element, PVDF ultrafiltration membrane filter element, activated carbon filter element, RO reverse osmosis membrane and conductivity sensor.

[0040] The hardware and core components of the low-temperature plasma activation system include a plasma generator, a Venturi mixing chamber, an ozone sensor, and a conductivity sensor.

[0041] The key components of the ultra-high pressure treatment system include compressor boosting and pressure chamber treatment. Its sterilization mechanism is cell membrane destruction and enzyme activity inhibition.

[0042] The gas control technology of the intelligent controlled atmosphere preservation system includes two-stage gas separation, precise control components, intelligent sensor network and three-layer composite film. The three-layer composite film includes an outer layer of PET film, a middle layer of PP nano-composite film and an inner layer of LDPE film.

[0043] The mechanical transmission of the automated transmission and control system includes intelligent conveyor lines and six-axis collaborative robots, and its intelligent control includes a PLC master control system and a human-computer interaction interface.

[0044] Working principle:

[0045] When in use, the full-process automated control system serves as the core hub), and according to the preset logic, it dispatches the pre-treatment system, air purification module, water purification module and other subsystems to operate in coordination. External air and tap water first enter the pre-treatment system, undergo four-stage treatment in the air purification module (primary filter interception, honeycomb activated carbon adsorption, HEPA filter element filtration, UV-C deep ultraviolet cavity sterilization) and three-stage + RO reverse osmosis treatment in the water purification module (PP cotton filter element to filter impurities, PVDF ultrafiltration membrane to remove bacteria, activated carbon filter element to remove chemicals, RO reverse osmosis membrane to filter viruses and minerals, and conductivity sensor monitoring), and output clean air and pure water, providing pollution-free raw materials for subsequent links, cutting off the introduction of microorganisms and pollutants at the source;

[0046] Clean air / water and food ingredients enter the low-temperature plasma activation system. A plasma generator, consisting of a quartz glass dielectric tube and diamond-coated electrodes, coupled with a 20kHz high-frequency power supply, ionizes and generates ozone, hydroxyl radicals, and other strong oxidizing substances. A Venturi mixing chamber ensures uniform mixing of the media, and an ozone sensor monitors concentration. A high-frequency electric field splits oxygen and water to produce strong oxidizing substances, destroying bacterial cell membranes and viral nucleic acids, killing E. coli and completing pretreatment sterilization.

[0047] After plasma pretreatment, raw materials enter the ultrahigh-pressure treatment system. A two-phase flow compressor increases the pressure to 600 MPa within 5 seconds (pressure control accuracy ±1% FS). The forged stainless steel pressure chamber (with a diamond-coated inner wall, a hardness of HV2000, and a pressure uniformity of 98%) applies high pressure: 200 MPa or more destroys the phospholipid bilayer of bacterial membranes (intracellular substance leakage rate ≥ 60%), 200 MPa inactivates 95% of lipase, and 300 MPa inactivates 98% of amylase, inhibiting enzymatic reactions. Plasma pretreatment reduces sterilization time from the traditional 15 minutes to 9 minutes, without damaging the food's fiber content or taste.

[0048] After ultra-high pressure treatment, the raw materials enter the intelligent controlled atmosphere preservation system. Two-stage gas separation uses PSA pressure swing adsorption to produce ≥99.9% pure nitrogen. Hollow fiber membranes increase the CO2 concentration to above 20%. German E+H electric valves precisely proportion the gases (accuracy ±1%), and semiconductor condensers and ultrasonic humidifiers control humidity (40%-90% RH, accuracy ±5% RH) to meet the humidity requirements of different foods. The food is encapsulated in a three-layer composite film (an outer PET film that blocks UV rays, a middle PP nano-composite film that is selectively breathable, and an inner LDPE film containing a silver ion antibacterial coating and activated carbon film). An intelligent sensor network monitors the gas, humidity, and microorganisms inside the box in real time. Data is uploaded via NFC, and parameters are automatically adjusted to form a "detection-adjustment-feedback" closed loop.

[0049] In the automated transmission and control system, servo motors drive intelligent conveyor lines (adjustable speed 0.1-1.2m / s, fiber optic sensor positioning accuracy ±0.5mm, buffer device for collision prevention); UR10 six-axis collaborative robots (5kg load, YOLOv5 algorithm visual recognition, food positioning and identification within 200ms, accuracy ±1mm, processing 1000 boxes per hour) transport materials; the Siemens S7-1500 PLC main control system uses a fuzzy PID algorithm for dynamic parameter adjustment (response time <15 seconds, control error ≤0.5%, built-in 100+ fault codes for automatic abnormality handling); the human-computer interaction interface developed by WinCC supports switching over 5000 recipes, and the IoT platform and AI system realize remote monitoring, data analysis, parameter adjustment and 180 days of data traceability, achieving unmanned operation and maintenance, and the final finished product is output via the conveyor line.

[0050] The above describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and description merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. Intelligent food fresh-keeping packaging equipment, characterized in that: It comprises an equipment housing (1), a full-process automated control system, a packaging structure and a conveying device (2): the full-process automated control system comprises a pretreatment system, an air purification module, a water purification module, a low-temperature plasma activation system, an ultra-high pressure treatment system, an intelligent gas conditioning and preservation system, an automated conveying and control system and a finished product output; Mounting slots (4) are equidistantly provided at the lower portion of the interior of the device housing (1), and corresponding air purification devices (5), water purification devices (6), low-temperature plasma activation devices (7), ultrahigh-pressure treatment devices (8), and intelligent atmosphere-controlled fresh-keeping devices (9) are installed and connected to the interior of the mounting slots (4). Release pipes are equidistantly fixedly connected to the interior of the device housing (1), and the release pipes are used in conjunction with the corresponding air purification devices (5), water purification devices (6), low-temperature plasma activation devices (7), ultrahigh-pressure treatment devices (8), and intelligent atmosphere-controlled fresh-keeping devices (9). A control panel (3) is installed and connected to the outer side of the housing (1); The conveying device (2) is located at the top of the inner wall of the shell (1), and the conveying device (2) comprises a slide groove (201), a threaded rod (202), a threaded block (203), a mechanical arm (204), and a mechanical claw (205). The top of the inner wall of the shell (1) is provided with a slide groove (201), the inner part of the slide groove (201) is rotatably connected to the threaded rod (202), the outer side of the threaded rod (202) is threadedly connected to the threaded block (203), the bottom of the threaded block (203) is installed and connected to the mechanical arm (204), the end of the mechanical arm (204) away from the threaded block (203) is installed and connected to the mechanical claw (205), and the threaded rod (202) is fixedly connected to the output shaft of the external servo motor; The packaging structure includes a detachable mold assembly. The mold has high-frequency vibration and 180-degree rotation. The mold shape can be quickly changed according to the size of the packaging box or bag.

2. The intelligent food fresh-keeping packaging device according to claim 1, characterized in that: The pretreatment system includes an air purification module and a water purification module. The low-temperature plasma activation system is connected to the pretreatment system. The ultra-high pressure treatment system is connected to the low-temperature plasma activation system. The intelligent controlled atmosphere preservation system is connected to the ultra-high pressure treatment system. The automatic transmission and control system runs through the pretreatment system, the low-temperature plasma activation system, the ultra-high pressure treatment system and the intelligent controlled atmosphere preservation system. The full-process automatic control system is respectively connected to the pretreatment system, the low-temperature plasma activation system, the ultra-high pressure treatment system, the intelligent controlled atmosphere preservation system and the automatic transmission and control system.

3. The intelligent food fresh-keeping packaging device according to claim 1, characterized in that: The air purification module adopts four-stage treatment, and the air purification module includes a primary filter, a honeycomb activated carbon layer, a HEPA filter element, and a UV-C deep ultraviolet cavity.

4. The intelligent food fresh-keeping packaging device according to claim 1, characterized in that: The water purification module adopts three-stage treatment and RO reverse osmosis membrane treatment, and the water purification module includes a PP cotton filter element, a PVDF ultrafiltration membrane filter element, an activated carbon filter element, an RO reverse osmosis membrane and a conductivity sensor.

5. The intelligent food fresh-keeping packaging device according to claim 1, characterized in that: The hardware and core components of the low-temperature plasma activation system include a plasma generator, a Venturi mixing chamber, an ozone sensor, and a conductivity sensor.

6. The intelligent food fresh-keeping packaging device according to claim 1, characterized in that: The key components of the ultra-high pressure treatment system include compressor boosting and pressure chamber treatment, and its sterilization mechanism is cell membrane destruction and enzyme activity inhibition.

7. The intelligent food fresh-keeping packaging device according to claim 1, characterized in that: The gas control technology of the intelligent atmosphere-controlled preservation system includes two-stage gas separation, precise control components, an intelligent sensor network and a three-layer composite film, wherein the three-layer composite film includes an outer PET film, a middle PP nano-composite film and an inner LDPE film.

8. The intelligent food fresh-keeping packaging device according to claim 1, characterized in that: The mechanical transmission of the automated transmission and control system includes an intelligent conveyor line and a six-axis collaborative robot, and its intelligent control includes a PLC main control system and a human-computer interaction interface.

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