1482 results about "Vacuum packing" patented technology

The invention provides a high-barrier fresh-keeping low-temperature heat-sealing composite film and a manufacturing process and application thereof, the composite film sequentially comprises a heat-sealing layer, a barrier layer, a reinforcing layer and a surface treatment layer from the inner layer to the outer layer, and the layers are bonded through bonding layers. The heat-sealing layer is prepared from modified polyethylene, polypropylene and a heat-sealing auxiliary agent, and the barrier layer is made of a composite material of nano aluminum oxide, polyvinylidene fluoride and an ethylene-vinyl alcohol copolymer. The enhancement layer is a polyester film, and the surface treatment layer is subjected to corona treatment. The composite film is prepared through a specific manufacturing process, and the specific manufacturing process comprises the steps of preparation of the heat sealing layer and the blocking layer, compounding, curing treatment, surface treatment and the like. The composite film disclosed by the invention has excellent barrier property and low-temperature heat-sealing capability, is suitable for vacuum packaging or modified atmosphere packaging of foods, and effectively prolongs the fresh-keeping period and the shelf life of the foods.

The invention relates to the technical field of packaging equipment, and particularly discloses fresh corn automatic vacuum packaging equipment which comprises a machine body, a rotating disc bag feeding system and a rotating disc vacuum system, and the rotating disc bag feeding system and the rotating disc vacuum system are arranged at the top of the machine body. And a clamping mechanism, a tightening mechanism, a synchronous driving mechanism and a heat sealing mechanism are arranged in the vacuum box. The effects of multi-point fixing of a packaging bag, automatic centering, deviation rectifying and clamping of corn and further front-back holding and fixing are achieved in sequence through cooperation of air pressure generated after the active air bag is extruded and hydraulic oil, the whole process is completed in the vacuum cover closing process, extra time does not need to be consumed, and therefore on the premise that the vacuum packaging efficiency is the same, the labor intensity of workers is lowered. The vacuum packaging quality of the corn is greatly improved, the packaging reject ratio is reduced, and the whole production cycle of the fresh corn does not need to be prolonged.

A vacuum-package secondary bagging machine, comprising a packaging-bag conveying line and a material-bag conveying line, wherein the packaging-bag conveying line comprises a supplied-bag conveying mechanism, the supplied-bag conveying mechanism comprises a conveyed-bag conveying belt, a conveying tail end of the conveyed-bag conveying belt aligns with a conveyed-bag deviation rectifying mechanism, an output end of the conveyed-bag deviation rectifying mechanism aligns with a double-station bag-opening and -expanding mechanism, and the double-station bag-opening and -expanding mechanism aligns with two push-into-packaging bag mechanisms which are transversely symmetrically arranged; and the material-bag conveying line comprises a material-bag screening mechanism, the material-bag screening mechanism lifts material bags to the position between the push-into-packaging bag mechanism and the double-station bag-opening and -expanding mechanism by means of a lifting platform, the push-into-packaging bag mechanism pushes the material bags into packaging bags, and in the direction of the material bags entering the packaging bags, a bag heat-sealing and arranging mechanism and a discharging and reversing mechanism are provided in sequence. All the components of the vacuum-package secondary bagging machine cooperate stably and efficiently. Further disclosed is an operating method for a vacuum-package secondary bagging machine.

The utility model relates to the technical field of packaging machines, and discloses a novel food vacuum packaging machine which comprises a machine body, and a station rotating disc device capable of rotating in a stepping mode is arranged above the top of the machine body. A bag storage device, a bag conveying device, a bag opening device, a bag opening device, a discharging device and a shaping device which can be matched with the station rotating disc device are arranged around the station rotating disc device, a clamp displacement device is arranged on one side of the shaping device, and a lifting conveying belt is arranged on the front side of the clamp displacement device. Double-station vacuum boxes located above the lifting conveying belt are installed on the two sides of the lifting conveying belt through supports correspondingly. The packaging bag filled with materials is moved to the double-station vacuum box through the clamp displacement device to be vacuumized and sealed, and is conveyed to the next process through the lifting conveying belt, so that the double-station vacuum sealing machine is simpler and more convenient, and the efficiency is improved.

The invention relates to the technical field of vacuum packaging, and discloses fresh meat cold-chain vacuum packaging equipment convenient to use and a method. The convenient-to-use fresh meat cold chain vacuum packaging equipment comprises a supporting platform serving as a basic supporting structure; and the product placing cavity is arranged at the top of the supporting platform and is used for placing fresh meat products. The heat shrinkage film driving device provided by the invention not only can achieve the automatic switching effect of the heat shrinkage film, but also successfully realizes the automatic tensioning and transferring operation of the last section of the heat shrinkage film by virtue of the elaborately designed tail end film drawing mechanism. According to the operation process, a series of precise actions such as clamping, cutting off and rotating transferring are sequentially executed on the last section of thermal shrinkage film. No matter whether the last section of the thermal shrinkage film is tightly and firmly connected with the winding drum or in a relatively loose connection state, the transfer task of the last section of the thermal shrinkage film can be smoothly completed.

The invention relates to a cleaning method for removing pollutants deposited on the surface of a fluoride coating heater. The cleaning method comprises the specific steps that appearance inspection is conducted on a part, and a universal meter is used for detecting a resistor; the binding post part is protected; a white corundum sand material is used for sand blasting and film removal; blowing through an air gun; carrying out deprotection and washing; the heater is right placed in an ultrasonic cleaning tank, deionized water is used for ultrasonic cleaning, and the part is rotated by 90 degrees once every 3 min; wiping with isopropyl alcohol; the part is put into an ultrasonic cleaning tank to be cleaned, the part is rotated by 90 degrees once every 3 min, and whether marks are generated or not is observed; purging with nitrogen; performing drying; performing inspection; and vacuum packaging. The white corundum sand material is used for conducting sand blasting and film removing treatment on the surface of the component, a small amount of residual pollutants on the surface of the component can be rapidly removed, and it is guaranteed that the surface of the component keeps uniform; and the part is rotated once every 3 minutes during ultrasonic cleaning, so that the surface can be controlled not to generate marks due to ultrasonic oscillation.

The invention discloses a processing method for reducing the broken rice rate of commercial rice, which comprises the following steps: S1, an unhulled rice pretreatment stage: S1a, a multi-stage linkage impurity removal process is adopted, and large impurities, light impurities, metal impurities and stones in unhulled rice are removed through combination of classified screening, airflow separation, magnetic separation and specific gravity stone removal, so that the impurity removal rate is greater than or equal to 99%; s1b, on the basis of a dynamic adaptation model of rice physical characteristics and rice hulling parameters, rice moisture and hardness data are collected in real time through a first detection device, the rice hulling flow and the inter-roller pressure are calculated and adjusted through a control unit, and closed-loop control is achieved; s2, carrying out a color sorting and polishing stage; s3, carrying out a rice milling regulation and control stage; and S4, entering a vacuum packaging stage.

The invention discloses a processing method capable of shortening the fermentation period and reducing the biogenic amine content for inoculated fermentation of smelly mandarin fish, and belongs to the field of food processing. The method comprises the following steps: (1) pretreating mandarin fish; (2) preparing fermentation liquor, wherein the fermentation liquor is prepared from NaCl, Chinese prickly ash, a leavening agent and water; the mass percentage concentration of each component is as follows: 0.1% of pepper, 4-8% of NaCl, 0.5-1.5% of a leavening agent and the balance of water; (3) fermentation process of smelly mandarin fish: completely immersing the fish body in the fermentation liquid, respectively fermenting for 6-12 days at the temperature of 5-20 DEG C, and collecting a smelly mandarin fish sample; and (4) performing vacuum packaging: performing vacuum packaging on the collected smelly mandarin fish samples, and performing cryopreservation at-18 DEG C. The leavening agents are lactobacillus sake, pediococcus pentosaceus, lactobacillus plantarum and mixed strains (lactobacillus sake, pediococcus pentosaceus and lactobacillus plantarum in a ratio of 1: 1: 1) respectively. The fermentation period of the siniperca chuatsi is shortened through inoculated fermentation, the content of biogenic amine is reduced, and the method has very high application and popularization value.

The invention relates to the technical field of food preservation, in particular to a vegetable preservation method based on an ultralow-temperature quick-freezing technology. Comprising the following steps: carrying out cleaning and impurity removal treatment on vegetables to be preserved; rapidly cooling the treated vegetables to a temperature ranging from-40 DEG C to-78 DEG C by using an ultra-low temperature technology for not less than 10 minutes; putting the quick-frozen vegetables into a vacuum package, and keeping the freshness of the vegetables in a low-oxygen environment; a natural antioxidant is added in the packaging process, so that the storage life of the vegetables is further prolonged. According to the vegetable fresh-keeping method based on the ultralow-temperature quick-freezing technology, the freezing technology and packaging materials are optimized, so that the storage time of the vegetables is effectively prolonged, and meanwhile, the original color, texture and nutritional ingredients of the vegetables are kept.

The invention relates to the technical field of composite resin preparation, and discloses a silicon-molybdenum alloy target material preparation method which comprises the following steps: preparing raw materials, selecting molybdenum powder and silicon powder with the purity not lower than 99.9%, mixing, putting the raw materials into a vacuum mixer, vacuumizing to 0.01-0.1 Pa, stirring for 1-5 hours, carrying out ultrasonic assistance, controlling the temperature to 25-40 DEG C to prevent oxidation, and carrying out a forming process. Filling the mixed powder into a detachable hard alloy mold coated with a 0.05-0.2 mm boron nitride coating, carrying out cold press molding, maintaining the pressure for 5-20 minutes to obtain a biscuit, sintering, putting the biscuit into a vacuum sintering furnace, firstly carrying out microwave-assisted heating, then raising the temperature to 1500-1800 DEG C, introducing trace argon in the later period to regulate and control a structure, carrying out a post-treatment process, carrying out numerical control processing on a sintered target material, carrying out chemical cleaning on the mixed solution of hydrofluoric acid and nitric acid, and finally carrying out vacuum sintering. Performing plasma treatment; and finally, performing vacuum packaging and filling high-purity nitrogen. The raw materials are high in purity and excellent in granularity; uniformly mixing and preventing oxidation; forming and sintering are precisely controlled, and the quality of the target material is guaranteed; the surface performance is improved through post-treatment, packaging is oxygen-proof and moisture-proof, and the target material meets the high-end industry requirement.

The invention belongs to the technical field of vacuum packaging of roasted seeds and nuts, and particularly relates to a vacuum sealing mechanism for automatic packaging of roasted seeds and nuts, which comprises a base, a connecting disc is rotatably arranged above the base, three groups of fixing assemblies uniformly distributed along the circumferential direction of the connecting disc are arranged on the connecting disc, and U-shaped fixing frames are arranged on the fixing assemblies. An opening binding mechanism is arranged on the U-shaped fixing frame, and a heat sealing assembly is arranged on the opening binding mechanism. According to the invention, the material transfer waiting time among traditional multiple stations can be saved, the complex signal coordination control difficulty and equipment debugging difficulty among traditional multiple stations are reduced, and the stability and packaging efficiency of equipment in high-speed production are improved; and when the packaging bag filled with the materials is shaped, three-dimensional constraint including bottom supporting, middle extruding and part limiting can be formed, the problems that the roasted seed and nut particles are loose up and down and large in thickness difference due to uneven extruding stress are solved, and the packaging quality of the sealed packaging bag is improved.

The invention relates to the technical field of precise cleaning and regeneration, and discloses an aluminum nitride crucible cleaning and regeneration process for a MicroOLED evaporation source, which comprises the steps of organic soaking, primary pure water soaking, physical film removal, water washing, primary drying, high-temperature baking, acid pickling, secondary pure water soaking, ultrasonic cleaning, secondary drying, detection, drying, cooling and vacuum packaging. According to the cleaning and regeneration technology for the aluminum nitride crucible for the MicroOLED evaporation source, multiple cleaning modes are combined, organic matter on the surface and in the aluminum nitride crucible can be effectively dissolved, compared with traditional soaking with a single organic solvent, the removal effect on stubborn stains is better, organic residues and permeation residues are avoided, and the service life of the aluminum nitride crucible is prolonged. The crucible can be safely mixed for use in subsequent use through the thorough cleaning process, cross contamination is effectively avoided, product flaws caused by incomplete cleaning of the crucible are reduced, the product yield is further improved, the high product yield means lower production cost and higher market competitiveness, and remarkable economic benefits are brought to enterprises.

The utility model relates to the technical field of preparation of prefabricated vegetables, and discloses full-automatic packaging equipment for preparation of prefabricated vegetables, which comprises a vacuum packaging machine, an air exhaust cover plate and four sealing blocks, and the air exhaust cover plate is positioned at the top of the vacuum packaging machine and is rotatably connected with the vacuum packaging machine; the four sealing blocks are located on the periphery of the top of the vacuum packaging machine. The problems that in the preparation and packaging process of prefabricated dishes, vacuum sealing needs to be conducted through mutual cooperation of an air exhaust system and a sealing system, but dishes are likely to fall off in the conveying process of the prefabricated dishes through a conveying system, and a vacuum packaging machine is not provided with a structure capable of cleaning the falling prefabricated dishes, so that the production cost is reduced are solved. Certain dangerousness exists when workers conduct manual cleaning, and therefore the problem that it is inconvenient for a user to rapidly clean the prefabricated vegetables falling on the surface of the vacuum packaging machine workbench is solved.

The invention discloses an automatic tea packaging machine, and relates to the technical field of tea packaging machines. The automatic tea packaging machine comprises a tea sorting device used for outputting tea linings, a tea transfer device, a packaging bag storage mechanism, a transfer mechanism, a bag opening mechanism, a packaging and shaping mechanism and a vacuum packaging chamber, and tea with preset weight is output by a weighing hopper and fed into the tea transfer device through a feeding plate; a plurality of outer packaging bags are transversely stacked on the packaging bag storage mechanism, and the transferring mechanism transfers the outer packaging bags to the preset position of the bottom end of the bag opening mechanism through a grabbing suction cup. The automatic tea packaging machine is simple in overall structure and has two packaging modes, the first mode is that tea is directly packaged into an outer packaging bag, and the second mode is that the tea is firstly packaged into an inner film, and then the inner film with the tea is packaged into the outer packaging bag. The whole machine mostly adopts common structures such as a motor, a gear, a rack and a guide rail, and is simple in structure, low in maintenance cost and simple and efficient in action.

The invention relates to the technical field of image processing, in particular to a prefabricated vegetable vacuum package quality detection method and system, and the method comprises the steps: collecting a package surface gray scale image of each prefabricated vegetable vacuum package; calculating the overall ambiguity and the comprehensive ambiguity value of each package surface grayscale image; obtaining a candidate fold area; calculating a wrinkle possibility coefficient; obtaining a wrinkle connected domain of each package surface gray level image; calculating a comprehensive wrinkle score of each package surface gray scale image; and based on the comprehensive fuzzy value and the comprehensive wrinkle score, obtaining the packaging qualification of each packaging surface gray scale image, and detecting the vacuum packaging quality of the prefabricated vegetables. According to the invention, the precision of vacuum packaging quality detection of the prefabricated vegetables is improved.

The utility model discloses a micro-nano high-activity powder feeding, grinding and discharging integrated device, which relates to the technical field of processing equipment and comprises a nitrogen making machine, a grinding bin, an anti-explosion vacuum pump, a remote automatic control cabinet, a glove box, a vacuum packaging machine and an anti-explosion air compressor. According to the improved feeding, grinding and discharging integrated device, matched nitrogen making equipment is adopted for supplementing nitrogen to a grinding bin on line in real time, the oxygen content is monitored on line through an oxygen content tester capable of setting an alarm value in a system, and once the oxygen content exceeds the set alarm value, a chain protection function is triggered; the vibration grinding device can be stopped for protection until nitrogen is continuously introduced into the nitrogen making equipment to enable the oxygen content value in the grinding bin to be below an alarm value, and the vibration grinding device can be started to run, so that the vibration grinding production device can effectively ensure that the running oxygen content in the system meets the safety operation requirement; the situation that the oxygen content exceeds the standard due to untight sealing of the system is avoided, and safe operation of the system under the low oxygen content is effectively guaranteed.

The invention relates to the technical field of prefabricated dishes, and discloses a color-protecting and vitamin-retaining method for green peppers in green pepper and pig tripe prefabricated dishes, which comprises the following steps: selecting fresh green peppers, sorting, cleaning, and soaking with a citric acid-calcium chloride mixed solution to obtain pretreated green peppers; performing vacuum pre-cooling on the pre-treated green peppers to obtain pre-cooled green peppers; selecting fresh pork tripe, cleaning, and marinating with spices to obtain marinated pork tripe; mixing the precooled green peppers with the marinated pork tripe, then packaging the mixture by adopting vacuum packaging to obtain a vacuum-packaged green pepper and pork tripe prefabricated dish, and finally performing low-temperature sterilization to obtain the green pepper and pork tripe prefabricated dish. The green peppers are soaked in the citric acid-calcium chloride mixed solution, and low-temperature vacuum pre-cooling is performed, so that degradation of chlorophyll is reduced, the color of the green peppers is protected, and vitamins are reserved at the same time.

The utility model discloses a vacuum packaging device for pig blood balls. The vacuum packaging device for the pig blood balls comprises a box body, an air exhaust mechanism is arranged in the box body, two operation chambers are formed in the box body, supporting plates and sealing rings are installed in the operation chambers, a double-face cover plate is rotatably installed between the two operation chambers, hot pressing rods are arranged on the two sides of the double-face cover plate, and the hot pressing rods are arranged on the two sides of the double-face cover plate. And two mounting pipes are fixedly mounted on the double-sided cover plate. According to the vacuum packaging device for the pig blood balls, the hot-pressing rod is installed on the double-face cover plate, the hot-pressing rod can descend along with reduction of air in the operation chamber through the installation pipe, the sliding rod, the limiting plate and the spring, and when the interior of the operation chamber is close to vacuum, the hot-pressing rod tightly presses a packaging bag for a period of time; according to the sealing device, the bag opening can be sealed while vacuumizing is conducted, and the possibility that air enters the packaging bag again is eradicated.

The utility model relates to the technical field of food vacuum package detection, in particular to a food vacuum package sealing performance detection device. The utility model provides a food vacuum package leakproofness detection device which can perform intermittent blanking on food vacuum packages, can control a transmission machine to perform intermittent transmission, realizes continuous detection, does not need frequent start and stop, prolongs the service life of equipment, and improves the detection efficiency. A food vacuum package leakproofness detection device comprises a supporting frame, a fixing frame and the like, and the left side of the supporting frame is connected with the fixing frame. According to the intermittent blanking device, food vacuum packages fall onto the conveyor through rotation of the intermittent blanking disc, the missing gear is shifted through the shifting piece, so that the food vacuum packages are conveyed to the position below the sealing cover, the conveyor stops conveying at the moment, intermittent blanking can be conducted on the food vacuum packages, the conveyor can be controlled to conduct intermittent conveying, and the conveying efficiency is improved. Continuous detection is achieved, frequent starting and stopping are not needed, the service life of equipment is prolonged, and the detection efficiency is improved.

The utility model relates to a vacuum packaging secondary bagging machine which comprises a packaging bag conveying line and a material bag conveying line, the packaging bag conveying line comprises a bag supply conveying mechanism, and a bag conveying deviation rectifying mechanism is in butt joint with the conveying tail end of a bag conveying belt of the bag supply conveying mechanism. The output end of the bag feeding deviation rectifying mechanism is in butt joint with a double-station bag opening and opening mechanism and is in butt joint with two sets of packaging bag pushing mechanisms which are transversely and symmetrically arranged through the double-station bag opening and opening mechanism. The material bag conveying line comprises a material bag screening mechanism, the material bag screening mechanism lifts material bags to the position between a packaging bag pushing mechanism and a double-station bag opening and opening mechanism through a lifting table to push packaging bags, and a heat-sealing bag arranging mechanism and a discharging reversing mechanism are sequentially arranged in the packaging bag pushing direction. According to the vacuum packaging secondary bagging machine, all the assemblies are matched stably and efficiently, and secondary bagging packaging work can be conducted efficiently.

The invention relates to the technical field of aquatic product processing, in particular to an integrated low-loss processing method of tuna fillets. The method comprises the following steps: performing low-temperature radio-frequency quick thawing on cryopreserved tuna fish fillets, taking out the tuna fish fillets until the central temperature of the tuna fish fillets reaches 4 DEG C, and quickly cutting the tuna fish fillets into blocks; soaking the fish blocks in a composite fresh-keeping soaking solution at 3-5 DEG C, and performing low-temperature ultrasonic treatment; and washing the soaked fish blocks, draining the surfaces of the fish blocks, loading the fish blocks into a vacuum packaging bag according to specification requirements, vacuumizing, putting the vacuum packaging bag into a water bath kettle, carrying out temperature gradient type low-temperature curing, and taking out to obtain a cured finished product of the tuna fish fillet. Through combined application of a low-temperature radio-frequency quick thawing technology and a vacuum low-temperature low-loss curing technology, the obtained tuna fillet cured product not only ensures the quality of fish meat, but also effectively inhibits histamine increase and fat oxidation of the cured fish meat during low-temperature storage; the method is of great significance in promoting quality improvement and diversified development of tuna products.

The utility model discloses an experimental animal feed double-layer vacuum package automatic pushing device which comprises a first conveyor, a second conveyor, a lifting platform, a pushing assembly, a third conveyor, a grabbing assembly, a fourth conveying mechanism, a sealing mechanism and a fifth conveying mechanism which are sequentially arranged. Wherein two groups of the first conveyor, the second conveyor, the third conveyor, the fourth conveying mechanism, the sealing mechanism and the fifth conveying mechanism are arranged side by side. According to the double-layer vacuum shaping packaging machine, double-layer vacuum shaping packaging is met, automatic bag feeding, bag pushing and bagging and vacuumizing sealing of a second-layer packaging bag are achieved, the steps can be completed in one device, the occupied space is saved, and the packaging efficiency is improved; meanwhile, the double-layer packaging bag achieves independent vacuum packaging, double protection is achieved, contamination of microorganisms in product contents is avoided, a flat packaging form is formed, the risk probability of bumping and bag breaking is reduced, and the bag breaking protection effect is improved.

The invention discloses lactobacillus plantarum and application thereof, and relates to the technical field of microorganisms, in particular to the technical field of lactobacillus plantarum and application thereof. The invention relates to a lactobacillus plantarum Zz-2025 and a preparation method of the lactobacillus plantarum Zz-2025. The preservation number of the lactobacillus plantarum Zz-2025 is CGMCC (China General Microbiological Culture Collection Center) N0.33707, and the preservation number of the lactobacillus plantarum Zz-2025 is CGMCC N0.33707. The strain produces exosomes, and experimental results speculate that the strain exosomes have bacteriostatic action and can effectively inhibit the growth of aerogenic bacteria. The fermented Chinese sauerkraut can greatly improve the crispness of the Chinese sauerkraut, can prolong the shelf life, and can be preserved for 6 months without bag expansion under vacuum packaging and normal temperature.

The invention provides a processing method for improving the quality of chicken prefabricated prepared food, which mainly integrates injection pickling, low-temperature rolling, active matter coating preservation, vacuum packaging and liquid nitrogen quick-freezing processes, so that the quality of prepared chicken cutlets during storage, transportation and frozen storage is ensured. The method comprises the following steps: injecting marinade into chicken in an injection manner, performing low-temperature vacuum rolling, kneading and pickling after injection, and performing film coating and fresh keeping through a fresh-keeping solution after pickling is finished, and finally, packaging, putting into a liquid nitrogen tunnel instant freezer, controlling the time to be 10-20 minutes at the temperature of-80 to-100 DEG C, and rapidly cooling to-20 DEG C or below. Through injection pickling and low-temperature rolling, the loss of original juice of the chicken cutlet can be effectively reduced, and the initial texture characteristics of the chicken cutlet are maintained; active matter coating preservation plays a role in inhibiting bacteria and resisting oxidation; through combination of vacuum packaging and liquid nitrogen quick freezing, surface moisture drying consumption and large-particle ice crystal formation during chicken cutlet freezing can be reduced, so that the water binding capacity, texture characteristics and freshness of the prefabricated chicken cutlet are kept for a long time.

The invention discloses a packaging method and device for a PTG316L stainless steel cold plate. According to the packaging method, the means of cleaning and drying, rust-proof treatment, buffering protection, vacuum packaging, outer packaging reinforcement and the like are adopted for standardization and protection, corresponding materials are adopted, so that the PTG316L stainless steel cold plate is prevented from being damaged by scratches, collisions, corrosion and the like in the transportation and storage process, and the surface quality and integrity of the PTG316L stainless steel cold plate are guaranteed. The packaging device comprises corresponding equipment for achieving all packaging steps, the packaging quality of the PTG316L stainless steel cold plate can be effectively improved, the damage risk of products in the circulation process is reduced, and good application prospects are achieved.

To provide a method for transporting thermoplastic resin vials under sterile conditions and in an exogenous pyrogen-free state, introducing the vials into a filling assembly line, and thereafter allowing the vials to stand without tipping or dropping them, the method is a method for packing vials for filling with contents such as medicaments or cells by vacuum-packing the vials, and includes the following steps:(I) inserting a plurality of vials in a tray with opening portion sides of the vials facing a bottom of the tray,(II) installing a soft film on bottom portions of the vials,(III) introducing the tray having the vials installed therein and the soft film into a gas-impermeable flexible film bag,(IV) depressurizing the inside of the flexible film bag to a prescribed vacuum pressure, and(V) sealing an opening of the flexible film bag.

The invention discloses a tiger skin soft boiled egg production process and a deoiling and cooling conveyor line, and relates to the technical field of food processing, the process comprises the following steps: S1, cleaning and disinfection: cleaning and disinfecting the surfaces of poultry eggs, and then washing the poultry eggs; s2, temperature returning placement: returning the temperature of the poultry eggs to 15-25 DEG C; s3, performing low-temperature water boiling: putting the poultry eggs into water with the temperature of 70-80 DEG C, and performing soaking and heating; s4, cooling and shelling: fishing out the poultry eggs, putting the poultry eggs into water for cooling, and then carrying out shelling treatment; s5, frying the tiger skin: putting the poultry eggs into hot oil, and frying the tiger skin at the temperature of 150-160 DEG C for about 3-4 minutes; s6, soaking in cold water: putting the fished-out tiger skin soft boiled eggs into ice water to be soaked for 3-5 minutes, and then fishing out the soaked tiger skin soft boiled eggs; s7, marinating: putting the tiger skin soft boiled eggs into marinade for marinating; and S8, packaging: fishing out the tiger skin soft boiled eggs, and carrying out vacuum packaging. The method has the effect of improving the soft yolk stability and the product quality of the tiger skin soft yolk eggs.

The invention relates to the technical field of vacuum packaging, in particular to polypropylene monofilament filter material vacuum packaging equipment which comprises a box body, a side supporting block is fixedly connected to the outer side wall of the box body, two packaging grooves are fixedly connected to the top end of the box body, and a control panel is integrally and fixedly connected to the outer wall of the side, away from the side supporting block, of the box body. The bottom end of the box body is detachably connected with universal wheels and a sealing switching mechanism, and the sealing switching mechanism comprises a driving shaft and two driven shafts. Feeding and discharging of packages are completed through the taking mechanism, vacuum treatment is conducted on the packages through the vacuum pump, sealing of the packages is completed through the sealing switching mechanism, the sealing performance of the vacuum packages is guaranteed, after discharging of one carrying plate is completed, the other carrying plate completes material taking through lifting of the material taking plate, manual intervention is reduced, and the working efficiency is improved. The production efficiency of vacuum packaging of the polypropylene fiber monofilament filter material is greatly improved, and the packaging quality defective rate is reduced.

The utility model discloses a meat food vacuum packaging fresh-keeping device which comprises a machine body, a vacuum cover is installed on the rear side of the machine body, a heat sealing mechanism is arranged on the inner wall of the vacuum cover and used for achieving heat sealing operation on a packaging bag, and a flattening mechanism is arranged in the machine body and used for achieving flattening operation on the packaging bag. The flattening mechanism comprises a flattening assembly, the flattening assembly comprises an operation box arranged at the bottom of an inner cavity of the machine body in a sliding mode, a lead screw is rotationally connected to the interior of the operation box, the left side of the lead screw is fixedly connected with a rotating bevel gear, and the surface of the lead screw is in threaded connection with a sliding block. According to the vacuum packaging and fresh-keeping equipment for the meat products, by arranging the flattening mechanism, the flattening rod can flatten the opening of a packaging bag, so that the opening of the packaging bag is kept flat in the subsequent heat sealing operation, the condition that the bag opening is wrinkled after heat sealing is avoided, and the quality of a finished product is improved.