Dahongpao tea oxygenating, alcoholizing and packaging machine and operation method thereof

Abstract

The invention discloses a Dahongpao tea oxygenating, alcoholizing and packaging machine and an operation method thereof.The Dahongpao tea oxygenating, alcoholizing and packaging machine comprises a tea caddy cleaning and sterilizing cabin and a canning, oxygenating and sealing cabin, and a tea caddy conveying belt, an illumination sterilizing tunnel and an oxygen ion wind purging machine are arranged in the tea caddy cleaning and sterilizing cabin. A weighing and canning device, an oxygenating device, a film sealing machine and a cap screwing machine are sequentially arranged in the canning and oxygenating sealed cabin. By means of the oxygenating and alcoholizing packaging machine, oxygenating and canning of clovershrub can be achieved, cleanliness and sealing performance in tea cans are guaranteed, and the annealing and alcoholizing process is completed in the sealed oxygenating environment of tea. According to the method, the annealing and alcoholization time can be remarkably shortened, the sealing performance is good, the method is not easily interfered by the external environment, and therefore the quality safety of the product is ensured.

Description

Technical Field

[0001] The invention relates to the field of tea processing, in particular to a Dahongpao tea oxygenation and alcoholization packaging machine and an operating method thereof. Background Art

[0002] Dahongpao tea usually goes through a storage stage to allow its contents to undergo natural oxidation and alcoholization under aerobic conditions to form a unique quality flavor for drinking. In addition, during the production process, "Dahongpao tea" has to go through multiple baking and aroma enhancement to form a unique "rock bone flower fragrance", commonly known as "caramel high-fire fragrance". However, some consumers are not very suitable for drinking this kind of Dahongpao tea with a "high-fire caramel fragrance" flavor, and even get angry after drinking it. For this reason, it needs to be naturally stored and annealed for 1-2 years before drinking. At present, most of the Dahongpao tea producing areas use the traditional natural storage method for annealing and alcoholization. During natural storage, it is usually necessary to maintain a certain ventilation and circulation with the external environment to carry out oxidation reactions and accelerate the annealing and alcoholization process. Practice has shown that this alcoholization annealing process, although it can achieve better results, also has the risks of long storage, annealing and alcoholization time, occupying more storage plants, being easily eroded by water, gas, light, heat and microorganisms during storage, and prone to quality deterioration. Therefore, it is necessary to develop a packaging machine that can provide oxygen while sealing and packaging the tea leaves, so as to enable aerobic annealing and alcoholization while ensuring that the tea leaves are not corroded by other substances and affect their quality. Summary of the invention

[0003] The purpose of the present invention is to provide a Da Hong Pao tea oxygenation and alcoholization packaging machine and an operation method thereof, so as to solve the problem that the existing Da Hong Pao tea has a long natural storage annealing and alcoholization time and is easily affected by the adverse effects of the external environment.

[0004] The technical solution adopted by the present invention to solve the technical problem is: a Da Hong Pao tea oxygenation and alcoholization packaging machine, including a tea can cleaning and sterilization cabin and a canning and oxygenation sealing cabin, wherein the tea can cleaning and sterilization cabin is provided with a tea can conveyor belt, a light sterilization tunnel and an oxygen ion wind washing machine. The canning and oxygenation sealing cabin is provided with a weighing and canning device, an oxygenation device, a film sealing machine and a capping machine in sequence.

[0005] In order to make the tea cans packaging Da Hong Pao tea clean, sterile and oxygen-containing, the tea cans are placed on a tea can conveyor belt and transported forward, and ultraviolet ozone sterilization lamps and oxygen ion wind blowing machines are set up. The tea cans are first input into the plexiglass light sterilization tunnel for efficient sterilization, and then the downward-inclined oxygen ion wind blowing machine arranged outside the light sterilization tunnel and the oxygen ion wind blowing machine arranged below the discharge end of the conveyor belt for upward blowing are used to continuously carry out secondary oxygen ion wind blowing to remove dust and debris inside and outside the tea cans and ultraviolet ozone odors, so that the clean, sterile tea cans with oxygen can be filled with Da Hong Pao tea for oxygenated and sealed packaging.

[0006] In order to input clean, sterile, oxygenated tea cans into the canning and oxygenating sealed cabin and connect them to the bottom-supporting base conveyor belt, lift the H-shaped hydraulic lifting rod at the front end of the tea can conveyor belt upward by 6-8 cm, causing the tea can conveyor belt to tilt upward by 10-15 degrees, and output it from the tea can cleaning and sterilization cabin in an oblique manner, which is convenient for docking with the bottom-supporting base conveyor belt. The tea cans are taken out of the tea can conveyor belt and placed on the bottom-supporting base conveyor belt through the grabbing robot at the discharge port of the tea can conveyor belt, and then sent into the tea can filling tunnel through the bottom-supporting base conveyor belt for canning and oxygenating.

[0007] In order to achieve low-temperature and efficient oxygenation, the inner wall of the low-temperature oxygen cabin is made of white fiberglass, the outer wall is made of rock wool polyurethane board, the refrigeration device uses KZ-40WFLD screw refrigeration unit, and the oxygen supply device uses PSA oxygen generator, so that the oxygen cabin can not only avoid the oxidation reaction between high-concentration oxygen and the inner wall of the cabin to produce odor that affects the quality of tea, but also has the characteristics of being solid, clean, non-conductive, corrosion-resistant, and rich in oxygen, which is conducive to the low-temperature oxygenation packaging of Dahongpao tea. In order to prevent the leakage of low temperature and oxygenated gas, and to facilitate the entry of Dahongpao tea raw materials into the cabin, the input of empty tea cans, and the output of tea cans after oxygenation packaging, a tea canning tunnel is set in the middle of the cabin, and a tea and personnel access channel is set at the bottom of the cabin, and an induction cabin door is set at the channel for closed low-temperature oxygenation packaging.

[0008] In order to make full use of the space of the canning oxygenation sealed cabin and reduce the occupied workshop area, the equipment is arranged in a three-dimensional structure, the storage hopper of Dahongpao tea is placed at the highest point, and the third oxygen branch pipe is connected for oxygenation storage to make it oxygen-enriched tea. The weighing device, tea feeding tube, and bottom-supporting base-type conveyor belt are arranged vertically under the storage hopper in sequence. The free fall effect is used to make the tea leaves in the vibrating storage hopper fall to the weighing device for quantitative weighing, and then the weighed tea leaves are directly dropped into the tea can on the bottom-supporting base-type conveyor belt through the tea feeding tube, and then transported to the oxygenation device for oxygenation, and connected to the film sealing machine and capping machine at the bottom of the channel through the L-shaped oxygen-enriched channel, and the continuous "oxygenation storage → weighing → tea filling → oxygenation → film application → sealing → capping and sealing packaging" is carried out in a three-dimensional manner.

[0009] In order to ensure accurate oxygenation, an injection oxygen mask oxygenation device is used, and the oxygenation device and the bottom-supporting base conveyor belt are arranged above the L-shaped oxygen-enriched channel. When the bottom-supporting base conveyor belt transports the weighed tea cans to the oxygenation device, the oxygen mask moves downward through the mechanical arm to tightly cover the mouth of the tea can, and the oxygenation injection tube set in the oxygen mask is inserted into the tea can to fill it with high-purity oxygen according to the set amount. After the oxygenation is completed, the mechanical arm drives the oxygen mask to move upward, and the movable bottom plate of the bottom-supporting base conveyor belt automatically opens under the action of the cylinder, so that the tea cans on the base fall through the L-shaped oxygen-enriched channel to the conveyor belt set at the bottom of the channel, and are transported to the film sealing machine for film sealing.

[0010] In order to overcome the technical obstacle of not being able to use high-temperature film sealing for oxygenated tea cans due to the high oxygen content in the tea cans, which are flammable and explosive, a film-sticking robot, an ultra-transparent polyester pressure-sensitive sealing film, and a hydraulic film sealing machine are used for film-sticking and can sealing. When the tea can is output from the L-shaped oxygen-enriched channel, the film-sticking robot immediately covers the pressure-sensitive sealing film accurately on the mouth of the tea can to prevent oxygen leakage, and then uses an automated hydraulic film sealing machine to bond and seal the sealing film using a normal temperature hydraulic pressure of 0.2-0.3MPa. The ultra-transparent polyester pressure-sensitive sealing film is sterile, odorless, transparent, and resistant to high humidity. The outer layer is a coating of a pressure-sensitive adhesive. The hydraulic film sealing method can firmly bond the can mouth, and it will not crack or peel off even if stored at room temperature for 3-5 years. In particular, the film is ultra-transparent, and the color changes of the Dahongpao tea in the tea can can be observed, which plays a certain role in timely controlling the alcoholization process.

[0011] In order to prevent hot and damp odor and microorganisms from entering the tea can from the outer cover and affecting the quality of tea and the annealing and aging effect, a nano bamboo charcoal fiber sealing pad is placed inside the outer cover. It can prevent heat, cold moisture, and electromagnetic waves from entering the tea can from the outer cover due to its heat insulation, moisture resistance, electromagnetic wave absorption and no odor. It can also overcome the disadvantage of "odor" of the current conventional plastic sealing pads.

[0012] The present invention also discloses an operating method of the above-mentioned Dahongpao tea oxygenation and alcoholization packaging machine, which comprises the following steps:

[0013] 1) Low-temperature oxygen supply in oxygen cabin: put Da Hong Pao tea into the storage hopper, open the valve of the first oxygen branch pipe, turn on the oxygen machine and refrigeration device, set the oxygen production time to 20-25 minutes, fill the oxygen cabin with 110-120 cubic meters / h, the purity of more than 90% oxygen, and reduce the temperature in the oxygen cabin to 5-8°C, the oxygen content in the air is between 22-25%, and then carry out oxygen filling and packaging;

[0014] 2) Sterilization and cleaning of tea cans: lift the hydraulic lifting rod upward, so that the tea cans on the tea can conveyor belt are tilted upward by 10-15 degrees, and are input into the light sterilization tunnel, facing the ultraviolet ozone sterilization lamp, and sterilized for 1-2 minutes, and then the tea cans on the tea can conveyor belt are output from the light sterilization tunnel, and the downward-tilted oxygen ion wind washer is used to blow and clean the inside of the tea can for 10-15 seconds, and the oxygen ion wind blowing volume is set to 100-150 cubic meters / min; then the oxygen ion wind washer under the discharge end of the tea can conveyor belt is used to blow and clean the surface of the tea can for another 8-10 seconds, and the oxygen ion wind blowing volume is set to 200-250 cubic meters / min, and then the cleaning and sterilized tea cans are placed on the bottom-supporting base conveyor belt through the grabbing manipulator set at the discharge port of the conveyor belt and input into the canning oxygen filling sealed cabin;

[0015] 3) Weighing and canning: Open the discharge valve below the storage hopper to discharge the tea. When discharging the tea, set the vibration frequency of the vibration storage hopper to 30-40 times / min to make the tea in the hopper fall into the disc of the electronic induction scale. After weighing, the tea can passes through the tea inlet tube and falls into the tea can below, and then is transported to the oxygenation device for oxygenation.

[0016] 4) Quantitative oxygenation: When the weighed tea cans are transported to the oxygenation device, the oxygen mask moves downward through the mechanical arm to tightly cover the mouth of the tea can for oxygenation; after the oxygenation is completed, the movable bottom plate is opened, and the tea cans on the first base fall into the L-shaped oxygen-enriched channel and are transported to the film sealing machine through the conveyor belt at the bottom of the L-shaped oxygen-enriched channel;

[0017] 5) Film sealing: Use the film-sticking robot to steadily cover the mouth of the tea can with the ultra-transparent polyester pressure-sensitive sealing film, and set the hydraulic pressure of the film sealing machine to 0.25MPa for hydraulic film sealing;

[0018] 6) Screw-on sealing: Use a suction cup manipulator to place the outer cover padded with nano bamboo charcoal fiber sealing pad on the can mouth after film sealing, and then tighten the can cover in a clockwise direction to seal it.

[0019] The beneficial effects of the present invention are as follows: through the oxygenation and alcoholization packaging machine of the present invention, oxygenation and canning of Dahongpao can be realized, and the cleanliness and sealing of the tea can are guaranteed, so that the annealing and alcoholization process of the tea leaves can be completed in a sealed and oxygenated environment. This method can significantly shorten the annealing and alcoholization time, has good sealing, and is not easily disturbed by the external environment, thereby ensuring the quality and safety of the product.

[0020] The present invention designs the tea can conveyor belt as a lifting conveyor belt, and arranges an ultraviolet ozone sterilization lamp and an oxygen ion wind washing machine to perform tunnel-type light sterilization and secondary oxygen ion wind blowing, which can effectively remove dust and debris inside and outside the tea cans and ultraviolet ozone odors, so that clean, sterile tea cans with oxygen can be filled with Da Hong Pao tea for oxygenated and sealed packaging.

[0021] The invention arranges a tea storage bucket, a weighing canning device, an oxygenating device, an L-shaped oxygen-enriched channel, a film sealing machine and a capping machine in a three-dimensional manner in a low-temperature canning and oxygenating sealed cabin with a white glass fiber reinforced plastic inner wall and a rock wool polyurethane outer wall for continuous low-temperature oxygenating packaging, thereby improving packaging efficiency by 25-30% and reducing oxygenating packaging costs by 30-40%. In particular, an oxygen mask injection tube oxygenating device is used to fill more than 90% of high-purity oxygen into the tank, and an oxidation reaction of exogenous oxygen is used to accelerate the annealing and alcoholization of Dahongpao tea, thereby effectively solving the problems of long storage and aging annealing time of Dahongpao tea, being easily eroded by water vapor, light and heat, and microorganisms, and being easily deteriorated in quality. The annealing and alcoholization effect of the existing natural storage for 2-3 years can be achieved by storing the Dahongpao tea for one year at room temperature.

[0022] The present invention arranges the oxygenating device and the bottom-supporting base conveyor belt above the L-shaped oxygen-enriched channel opening, so that the oxygenated tea cans can be conveyed in the closed oxygen-enriched channel, which can prevent the oxygen in the tea cans from leaking out and prevent the invasion of microorganisms and bacteria, thereby greatly improving the quality of oxygenated packaging.

[0023] The present invention adopts ultra-transparent polyester pressure-sensitive sealing film and hydraulic film sealing machine, which not only solves the technical problem that the tea can after oxygenation cannot be sealed with high-temperature film due to high oxygen content and flammability and explosion, but also can observe the color change of Dahongpao tea in the tea can, which has a certain effect on timely controlling the aging process of aged tea. The use of nano bamboo charcoal fiber sealing pad can prevent heat, cold humidity, and electromagnetic waves from entering the tea can from the outer cover to affect the quality of tea, and also overcomes the disadvantage that the outer cover of the existing plastic sealing pad has a "peculiar smell".

[0024] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is the front view of the present invention.

[0026] Figure 2 This is a front view of the tea can cleaning and sterilizing cabin of the present invention.

[0027] Figure 3 It is a schematic structural diagram of the second base in the present invention.

[0028] Figure 4 It is a schematic diagram of the structure of the ultraviolet ozone sterilization lamp in the present invention.

[0029] Figure 5 It is a structural schematic diagram of the H-shaped hydraulic lifting rod in the present invention.

[0030] Figure 6 It is a front view of the canning and oxygenation sealed cabin in the present invention.

[0031] Figure 7 It is a front view of the tea canning tunnel in the present invention.

[0032] Figure 8 It is a schematic structural diagram of the weighing and canning device in the present invention.

[0033] Fig. 9 It is a structural schematic diagram of the electronic weighing platform in the present invention.

[0034] Fig.10 It is a front view of the connection between the driving gear and the driven gear in the present invention.

[0035] Fig.11 It is a top view of the connection between the driving gear and the driven gear in the present invention.

[0036] Fig.12 It is a schematic structural diagram of the first base in the present invention.

[0037] Fig.13 It is a structural schematic diagram of the oxygenation device in the present invention.

[0038] Fig.14 It is an enlarged schematic diagram of the metering cylinder in the present invention.

[0039] Fig.15 It is a structural schematic diagram of the capping machine in the present invention.

[0040] Fig.16 It is a cross-sectional view of the can cover in the present invention. DETAILED DESCRIPTION

[0041] Embodiment 1, as Figures 1 to 16 As shown, a Da Hong Pao tea oxygenation and alcoholization packaging machine comprises a tea can cleaning and sterilization cabin 1 and a canning and oxygenation sealing cabin 2 connected to the tea can cleaning and sterilization cabin 1. The tea can cleaning and sterilization cabin 1 is used to sterilize and disinfect empty tea cans, and the canning and oxygenation sealing cabin 2 is a low-temperature oxygenation cabin. The tea cans after disinfection are sent into the canning and oxygenation sealing cabin 2, and the canning, oxygenation and sealing of tea leaves are completed in a low-temperature oxygenation environment, so that the tea leaves packaged in the tea cans are in an oxygen-rich environment. The tea leaves packaged by this packaging machine can shorten the annealing and alcoholization time, and can well ensure that the tea leaves in the cans are not affected by the external environment when stored for a long time, and ensure the safety of tea quality storage.

[0042] Specifically, the tea can cleaning and sterilizing cabin 1 is provided with a tea can conveyor belt 3, which is a stainless steel chain conveyor belt with a length of 1.5-2.5 meters and a width of 50-60 centimeters. In order to improve the sterilization, washing and lifting and conveying efficiency of the tea can, a group of second bases 32 are arranged at intervals on the conveyor belt, and three claws 33 are arranged on the inner wall of the second base 32. The back of the claws 33 is provided with an ejection spring 34 for ejecting the claws 33. When the tea can 100 is placed in the second base 32, the claws 33 are pressed on the outer wall of the tea can to clamp the tea can and prevent it from tilting. A hydraulic lifting rod 31 with an H-shaped structure is arranged below the discharge end of the conveyor belt. The conveying angle of the tea can conveyor belt 3 can be adjusted by raising or lowering the height of the hydraulic lifting rod. By raising the height of the discharge end, the sterilized and washed tea cans can be output in an inclined and stable manner and docked with the bottom-supporting base conveyor belt 8.

[0043] The tea can cleaning and sterilizing cabin 1 is also provided with a light sterilization tunnel 4, which is made of organic glass, 0.8-1.2 meters long and 45-50 centimeters wide. The tea can conveyor belt 3 passes through the light sterilization tunnel 4 for light sterilization. In the light sterilization tunnel 4, two ultraviolet ozone sterilization lamps 41 are arranged at intervals of 30-40 centimeters. The ultraviolet ozone sterilization lamp 41 is a dual sterilization lamp for ultraviolet irradiation sterilization and ozone oxidation sterilization. The ultraviolet ozone sterilization lamp 4 is provided with a first light source 411 emitting a wavelength of 254nm and a second light source 412 emitting a wavelength of 185nm. The wavelength of 254nm is an ozone-free band ultraviolet light, and the wavelength of 185nm is an ozone-containing band ultraviolet light. The strong oxidation effect of ozone can be used to directly oxidize bacteria to achieve a sterilization effect. The two ultraviolet ozone sterilization lamps 41 form an ultraviolet ozone light radiation sterilization tunnel, so as to perform double comprehensive sterilization on the input tea cans, and kill more than 90% of microorganisms and bacteria within 1-2 minutes. The light sterilization tunnel 4 can not only achieve efficient sterilization of the tea cans, but also prevent ultraviolet rays and ozone from leaking out and polluting the environment.

[0044] Two oxygen ion wind washing machines 5 are also arranged in the tea can cleaning and sterilizing cabin 1, one is arranged at 10-15cm from the exit of the light sterilization tunnel 4, and the other is arranged at the discharge end of the tea can conveyor belt 3. The oxygen ion wind high-pressure air nozzle of the oxygen ion wind washing machine 5 located at 10-15cm from the exit of the light sterilization tunnel 4 is tilted downward to aim at the tea can 100 on the tea can conveyor belt 3 for washing, so as to blow away the debris in the can and make it contain some oxygen; the oxygen ion wind high-pressure air nozzle of the oxygen ion wind washing machine 5 located at the discharge end of the tea can conveyor belt 3 is arranged below the discharge end of the tea can conveyor belt 3, and continues to wash the tea can 100 on the tea can conveyor belt 3 in a vertical upward manner, so that the outside is clean, hygienic, sterile and odorless. The oxygen ion wind washing machine 5 can efficiently remove dust and debris inside and outside the tea can, and can also remove the ultraviolet ozone odor caused by the ultraviolet ozone sterilization lamp 41.

[0045] A bottom-supporting base conveyor belt 8 connected to the tea can conveyor belt 3 is arranged in the canning and oxygenating sealed cabin 2. A grabbing robot 20 is arranged between the tea can conveyor belt 3 and the bottom-supporting base conveyor belt 8. The grabbing robot 20 is a five-finger-shaped intelligent robot. There are two of them, which are respectively located on the left and right sides of the discharge end of the tea can conveyor belt 3. The tea cans are grabbed by moving the swing arm to cross and circulate left and right, so that the cleaned and sterilized tea cans are placed on the bottom-supporting base conveyor belt 8 and then transported to the canning and oxygenating sealed cabin 2.

[0046] The canning and oxygenating sealed cabin 2 is a low-temperature oxygenating cabin, and is docked with a refrigerator 6 and an oxygen supply machine 14 . The canning and oxygenating sealed cabin 2 is cooled by the refrigerator 6 , and oxygen is supplied to the canning and oxygenating sealed cabin 2 by the oxygen supply machine 14 .

[0047] The canning oxygenation sealed cabin 2 is a sealed cabin with white tempered glass inner wall and rock wool polyurethane outer wall, and its cabin body is 4.5 meters long, 3.2 meters wide and 3.8 meters high. In order to prevent the low temperature and oxygen filling gas from leaking out during canning of tea, a tea canning tunnel 7 is provided in the middle of the canning oxygenation sealed cabin 2, and a tea and personnel access passage is provided at the bottom of the canning oxygenation sealed cabin 2, and an induction door is provided at the passage to facilitate closed low temperature oxygenation packaging.

[0048] The oxygen supply machine 14 is a PSA oxygen generator, which is composed of an oxygen production module and an analysis and control module. The oxygen supply machine 14 is arranged outside the canned oxygen filling sealed cabin 2. A first oxygen supply pipe 15 is arranged between the oxygen supply machine 14 and the canned oxygen filling sealed cabin 2. High-purity oxygen with a purity of more than 90% is input through the first oxygen supply pipe 15, and the gas transmission volume is 100-150 cubic meters / h, so that the oxygen content in the cabin air is as high as 22-25% or more to become an oxygen-enriched cabin. A second oxygen branch pipe 17 is arranged between the oxygen supply machine 14 and the oxygen ion wind washer 5, and oxygen is supplied to the oxygen ion wind washer 5 through the second oxygen branch pipe 17.

[0049] The refrigerator 6 is a KZ-40WFLD screw refrigeration unit, which is a single-head screw refrigerator. It uses a screw compressor to provide a refrigeration power source and uses cooling water as a condensing medium for refrigeration. Its single-head output power is 30HP-280HP, and the refrigeration temperature is controlled to be between 5-15°C. The refrigerator 6 is arranged outside the canning and oxygenation sealed cabin 2, and the cold air pipe is installed in the middle part of the top of the cabin body to blow cold air downward to reduce the temperature in the cabin to 5-8°C, and low-temperature oxygenation is performed to improve the oxygen utilization rate. The technical effect produced by the low-temperature oxygen-enriched canning and oxygenation sealed cabin is: using its clean and firm, non-conductive, corrosion-resistant, low-temperature oxygen-enriched characteristics, no odor or harmful substances will appear to affect the quality of tea.

[0050] The tea canning tunnel 7 is provided with a weighing and canning device 9 and an oxygenating device 10 in sequence, an L-shaped oxygen-enriching channel 11 is provided below the oxygenating device 10, and a film sealing machine 12 and a capping machine 13 are provided in sequence at the discharge end of the L-shaped oxygen-enriching channel 11. The bottom-supporting base conveyor belt 8 is located in the tea canning tunnel 7, and the feed end extends to the outside of the canning and oxygenating sealed cabin 2 and docks with the tea can conveyor belt 3.

[0051] The weighing and canning device 9 includes a tea storage hopper 91, a weighing device 92 arranged below the tea storage hopper 91, an openable electronic weighing platform 93 is arranged at the bottom of the weighing device 92, and a tea inlet tube 94 is arranged below the electronic weighing platform 93; an elevator 19 is also arranged in the canning and oxygenating sealed cabin 2, and the elevator 19 is a 10-mesh stainless steel screen conveyor belt, which lifts the Dahongpao tea into the tea storage hopper 91.

[0052] The tea storage hopper 91 is arranged on the tea canning tunnel 7 and is provided with a mounting hole adapted to the tea storage hopper 91. The tea storage hopper 91 is clamped in the mounting hole, with its upper end protruding from the tea canning tunnel 7 and its lower end located in the tea canning tunnel 7. A third oxygen branch pipe 18 is provided between the tea storage hopper 91 and the oxygen supply machine 14. One end of the third oxygen branch pipe 18 is installed at the cone position at the bottom of the tea storage hopper 91 and the air outlet is arranged upward. Oxygen is filled into the tea leaves in the tea storage hopper 91 in an upward manner, so that the Dahongpao tea before weighing becomes oxygen-enriched tea.

[0053] In order to facilitate the dropping of tea from the tea storage hopper 91, a drop valve 95 is provided at the discharge port of the tea storage hopper 91, and the dropping of tea leaves is controlled by the drop valve 95. At the same time, a vibrator 96 is installed on the tea storage hopper 91, and the tea leaves in the hopper are caused to drop slowly onto the electronic weighing platform 93 of the weighing device 92 through vibration for quantitative weighing. The vibrator 96 is a PT-MVE type micro AC vibration motor.

[0054] The electronic weighing platform 93 includes a left flip plate 931 and a right flip plate 932. A left rotating shaft 933 is fixedly arranged at the bottom of the left flip plate 931, and a right rotating shaft 934 is fixedly arranged at the bottom of the right flip plate 932. A rotating motor 935 is also provided. A driving gear 936 is provided at the output end of the rotating motor 935. A driven gear 937 meshing with the driving gear 936 is provided on the left rotating shaft 933 and the right rotating shaft 934. The rotating motor 935 drives the driving gear 936 to rotate, so that the driven gear 937 rotates to drive the left flip plate 931 and the right flip plate 932 to open downward or close upward. When the weight of the tea leaves on the electronic weighing platform 93 reaches the canning requirement, the upper blanking valve 95 is closed, the left flip plate 931 and the right flip plate 932 are opened downward, and the tea leaves enter the tea inlet tube 94 below and fall into the tea can 100 on the bottom support base type conveyor belt 8. When all the tea leaves on the electronic weighing platform 93 have fallen, the left flip plate 931 and the right flip plate 932 are closed upwards, the drop valve 95 is opened, and the electronic weighing platform 93 receives the tea leaves falling from the tea storage hopper 91 again for weighing, and the automatic quantitative weighing is carried out in this cycle.

[0055] The tea inlet tube 94 is a "cylindrical" stainless steel material. The upper part of the tea inlet tube 94 is connected to an electronic weighing platform 93, and the lower part is directly connected to the top of the tea can 100 on the bottom-supporting base conveyor belt 8, through which the tea leaves weighed in a certain quantity are directly dropped and filled into the tea can 100.

[0056] The bottom-supporting pedestal conveyor belt 8 is a stainless steel chain rotary conveyor belt with a length of 2.5-3.5 meters and a width of 30-40 centimeters. A first pedestal 81 matching the size of the tea can is provided on the bottom-supporting pedestal conveyor belt 8. A movable bottom plate 82 is provided at the bottom of the first pedestal 81. A connecting hinge 83 is provided at one end of the movable bottom plate 82. A first cylinder 84 for controlling the opening and closing of the movable bottom plate 82 is also provided. The movable end of the first cylinder 84 is hingedly fixed to the other end of the movable bottom plate 82 relative to the connecting hinge 83. When the movable bottom plate 82 is opened, the tea can 100 can fall from the bottom of the first pedestal 81 and fall into the next process equipment. The technical effect produced by adopting the weighing and canning device 9 is as follows: the tea storage bucket, weighing device, tea feeding tube and bottom-supporting base conveyor belt are arranged three-dimensionally from top to bottom in sequence, and the effect of free fall is utilized to realize the automation of weighing and tea filling processes, thereby reducing the conveying equipment and occupied space. At the same time, the bottom-supporting base conveyor belt facilitates the smooth transportation of the weighed tea cans to the oxygenation device for oxygenation packaging.

[0057] The oxygenation device 10 includes a syringe and an oxygen mask 107. The oxygen mask 107 is a stainless steel circular cover, and its diameter is slightly larger than the mouth of the tea can by 1-2 mm, so as to tightly cover the mouth of the tea can for oxygenation and prevent the oxygen in the tea can from leaking out. An upper and lower mechanical arm 108 is also provided to drive the oxygen mask 107 to move up and down. The upper and lower mechanical arm 108 is a mechanical arm that simulates the structure of human arms and is arranged above the bottom-supporting base rotary conveyor belt 8. The upper and lower mechanical arms 108 drive the oxygen mask 107 to move up and down by the human arm simulation. When the bottom-supporting base conveyor belt 8 transports the weighed tea can to the bottom of the oxygenation device 10, the upper and lower mechanical arms 108 drive the oxygen mask 107 to move downward and buckle on the tea can for oxygenation. When the oxygenation is completed, the upper and lower mechanical arms 108 drive the oxygen mask 107 to move upward and separate from the tea can.

[0058] The syringe comprises a metering cylinder 101, an injection tube 102 arranged at the front end of the metering cylinder 101 and an injection plug 103 arranged in the metering cylinder 101. In order to be able to fill tea cans of different volumes with different set amounts of oxygen, a scale mark is also arranged in the metering cylinder 101, and oxygen is injected according to the scale of the set amount through the injection plug 103 in the metering cylinder. In order to facilitate the filling of oxygen into the metering cylinder, a first oxygen branch pipe 105 is also connected to the injection plug 103, and the other end of the first oxygen branch pipe 105 is connected to the oxygen supply machine 14. In order to control the air intake and air outlet of the metering cylinder 101, a flow control valve 106 is arranged on the injection tube 102 and the first oxygen branch pipe 105. When it is necessary to fill oxygen into the metering cylinder 101, the flow control valve 106 on the injection tube 102 is closed, and the flow control valve 106 on the first oxygen branch pipe 105 is opened, and oxygen is filled inward to the set scale, and then the flow control valve 106 on the first oxygen branch pipe 105 is closed. When the tea can is required to be oxygenated, the flow control valve 106 on the injection tube 102 is opened, and the flow control valve 106 on the first oxygen branch 105 remains closed. Under the push of the injection plug 103, oxygen is injected into the tea can 100. In order to facilitate the control of the movement of the injection plug 103 and reduce the cost of the equipment, the injection plug 103 is connected with a compression spring 104. Under the action of the compression spring 104, when there is no oxygen in the metering cylinder 101, the injection plug 103 is located at the bottom of the metering cylinder 101. When oxygen is injected into the metering cylinder 101, under the action of the internal pressure, the injection plug 103 overcomes the spring force of the compression spring 104 and moves upward. When the flow control valve 106 on the injection tube 102 is opened, under the action of the spring force, the injection plug 103 moves upward to inject oxygen into the tea can. After the tea can is oxygenated, the movable bottom plate 82 corresponding to the bottom of the first base 81 is opened, and the tea can falls into the L-shaped oxygen-enriched channel 11 below.

[0059] The L-shaped oxygen-enriched channel 11 is made of stainless steel. A second oxygen supply main pipe 16 is provided between the upper part of the L-shaped oxygen-enriched channel 11 and the oxygen supply machine 14, and oxygen is poured into the L-shaped oxygen-enriched channel 11 through the second oxygen supply main pipe 16. A horizontal conveyor belt 21 is provided at the bottom of the L-shaped oxygen-enriched channel 11, and the tea cans fall from the L-shaped oxygen-enriched channel 11 and land on the horizontal conveyor belt 21. The discharge end of the horizontal conveyor belt 21 extends out of the L-shaped oxygen-enriched channel 11, which is convenient for the robot to grab. A film sealing machine 12 and a capping machine 13 are provided at the discharge end of the horizontal conveyor belt 21, and the can mouths of the tea cans are sealed and the sealing covers are tightened in turn. A tea can fixed conveyor belt 22 is provided between the film sealing machine 12 and the capping machine 13, and a group of third bases 221 are provided on the tea can fixed conveyor belt 22. The structure of the third base 221 is the same as that of the second base 32, and the can body is clamped during transportation to prevent shaking.

[0060] The film sealing machine 12 is an automated hydraulic tea can film sealing machine. The machine is characterized in that it does not require high-temperature sealing, and only 0.2-0.3MPa of normal temperature hydraulic pressure is used to bond and seal the sealing film. For this purpose, a hydraulic tea can film sealing machine is used, and the technical obstacle that the oxygenated tea can is flammable and explosive and cannot be sealed with high temperature is overcome from the equipment aspect. The film sealing machine 12 is also provided with a film sticking manipulator 121, which is a second-generation fully automatic five-finger structure manipulator. The manipulator can simulate the five fingers of a human hand to cover the sealing film on the mouth of the tea can exactly after the precise calculation of the PLC system and the cooperation of multiple sensors. The film sticking manipulator 121 is arranged at the exit of the L-shaped oxygen-enriched channel 11. When the tea can is output from the horizontal conveyor belt 21, the film sticking manipulator 121 immediately covers the sealing film on the mouth of the tea can accurately to achieve rapid sealing to prevent oxygen leakage.

[0061] The sealing film is an ultra-transparent polyester pressure-sensitive sealing film, which has the advantages of being sterile, odorless, transparent, and resistant to high humidity. In particular, the outer layer of the film uses a pressure-sensitive adhesive coating, which can be firmly bonded to the can mouth by only using a hydraulic sealing method, and will not crack or peel off when stored at room temperature for 3-5 years. The use of this new polyester pressure-sensitive sealing film not only solves the technical problem that oxygenated tea cans cannot be sealed at high temperatures due to the high oxygen content in the tea cans, which is flammable and explosive, but also can use this ultra-transparent film to observe the color changes of the Dahongpao tea in the tea cans, which has a certain effect on timely controlling its aging process.

[0062] The capping machine 13 includes a suction cup manipulator 131 and a capping device 132 for grabbing the can lid. The suction cup manipulator 131 is a manipulator provided with a suction cup and a rotating shaft. The sealed tea can is input to the bottom of the capping machine 13. The can lid 200 is first sucked on the suction cup manipulator 131 by the suction action of the suction cup manipulator 131, and then the suction cup manipulator 131 is driven by the rotating shaft to put the can lid 200 on the mouth of the sealed tea can. In order to improve the sealing performance, a sealing pad 201 is also provided in the can lid 200. The sealing pad 201 is a nano bamboo charcoal fiber sealing pad. The sealing pad has the characteristics of heat insulation, moisture resistance, electromagnetic wave absorption and no odor. Placing it in the outer cover as a sealing pad can not only prevent heat, moisture, and electromagnetic waves from entering the tea can from the outer cover to affect the quality of tea, but also overcome the disadvantage of the current commonly used plastic sealing pad having "odor". The capping device 132 is a cover-type rotary capping device, which uses the capping device 132 to tightly cover the outer cover of the tea can and tighten the can cover in a clockwise direction to seal it. The technical effect produced by the use of the film sealing machine and the capping machine: the use of a five-finger film-sticking manipulator to cover the polyester pressure-sensitive film can avoid bringing microorganisms and bacteria into the tea can to affect the quality of the tea and the annealing and alcoholization effect. The use of ultra-transparent polyester pressure-sensitive sealing film and hydraulic film sealing machine not only solves the technical problem that the oxygenated tea can is flammable and explosive and cannot be sealed with high temperature, but also can observe the color changes of the Dahongpao tea in the tea can, which has a certain effect on timely controlling the alcoholization process of the tea. The use of nano bamboo charcoal fiber sealing pads can prevent heat, moisture, and electromagnetic waves from entering the tea can from the outer cover to affect the quality of the tea, and also overcome the disadvantage of the current plastic sealing pads having "peculiar smell".

[0063] Embodiment 2: The operation method of the Dahongpao tea oxygenation and alcoholization packaging machine in the above embodiment 1 comprises the following steps:

[0064] 1) Low-temperature oxygen supply in oxygen cabin: put Da Hong Pao tea into the storage hopper, open the valve of the third oxygen branch pipe, turn on the oxygen machine and refrigeration device, set the oxygen production time to 20-25 minutes, fill the oxygen cabin with 110-120 cubic meters / h, the purity of more than 90% oxygen, and reduce the temperature in the oxygen cabin to 5-8°C, the oxygen content in the air is between 22-25%, and then carry out oxygen filling and packaging;

[0065] 2) Sterilization and cleaning of tea cans: lift the hydraulic lifting rod upward, so that the tea cans on the tea can conveyor belt are tilted upward by 10-15 degrees, and are input into the light sterilization tunnel, facing the ultraviolet ozone sterilization lamp, and sterilized for 1-2 minutes, and then the tea cans on the tea can conveyor belt are output from the light sterilization tunnel, and the downward-tilted oxygen ion wind washer is used to blow and clean the inside of the tea can for 10-15 seconds, and the oxygen ion wind blowing volume is set to 100-150 cubic meters / min; then the oxygen ion wind washer under the discharge end of the tea can conveyor belt is used to blow and clean the surface of the tea can for another 8-10 seconds, and the oxygen ion wind blowing volume is set to 200-250 cubic meters / min, and then the cleaning and sterilized tea cans are placed on the bottom-supporting base conveyor belt through the grabbing manipulator set at the discharge port of the conveyor belt and input into the canning oxygen filling sealed cabin;

[0066] 3) Weighing and canning: Open the discharge valve below the storage hopper to discharge the tea. When discharging the tea, set the vibration frequency of the vibration storage hopper to 30-40 times / min to cause the tea leaves in the hopper to fall into the disc of the electronic induction scale. Set the weighing of small tea cans to 5 grams of tea and the weighing of multi-brew tea cans to 50 grams of tea for quantitative weighing. After weighing, the tea cans pass through the tea inlet tube and fall into the tea can below, and then are transported to the oxygenation device for oxygenation.

[0067] 4) Quantitative oxygenation: When the weighed tea cans are transported to the oxygenation device, the oxygen mask moves downward through the mechanical arm to tightly cover the mouth of the tea can for oxygenation; set the metering cylinder: the oxygenation volume for small tea cans is 8-10ml, and the oxygenation volume for multi-infusion tea cans is 18-20ml, and then inject it into the tea can through the injection plug. After oxygenation is completed, open the movable bottom plate, and the tea cans on the first base fall into the L-shaped oxygen-enriched channel, and are sent to the film sealing machine through the conveyor belt at the bottom of the L-shaped oxygen-enriched channel;

[0068] 5) Film sealing: Use the film-sticking robot to steadily cover the mouth of the tea can with the ultra-transparent polyester pressure-sensitive sealing film, and set the hydraulic pressure of the film sealing machine to 0.25MPa for hydraulic film sealing;

[0069] 6) Screw-on sealing: Use a suction cup manipulator to place the outer cover padded with nano bamboo charcoal fiber sealing pad on the can mouth after film sealing, and then tighten the can cover in a clockwise direction to seal it.

[0070] The present invention is described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention; or the above concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A Da Hong Pao tea oxygenation and alcoholization packaging machine, characterized by: It comprises a tea can cleaning and sterilizing cabin (1) and a canning and oxygenating sealing cabin (2) connected to the tea can cleaning and sterilizing cabin (1); The tea can cleaning and sterilizing cabin (1) is provided with a tea can conveyor belt (3) and a light sterilizing tunnel (4). An ultraviolet ozone sterilizing lamp (41) is provided in the light sterilizing tunnel (4). The tea can conveyor belt (3) passes through the light sterilizing tunnel (4). An oxygen ion wind washer (5) is provided at the exit of the light sterilizing tunnel (4) and at the discharge end of the tea can conveyor belt (3) to respectively wash the inside and surface of the tea can. The canning and oxygenating sealed cabin (2) is connected to a refrigerator (6), a tea canning tunnel (7) is arranged above the interior of the canning and oxygenating sealed cabin (2), a bottom-supporting base conveyor belt (8) is arranged in the tea canning tunnel (7), the feeding end of the bottom-supporting base conveyor belt (8) extends to the outside of the canning and oxygenating sealed cabin (2) and docks with the tea can conveyor belt (3); a weighing and canning device (9) and an oxygenating device (10) are arranged in sequence in the tea canning tunnel (7), an L-shaped oxygen-enriched channel (11) is arranged below the oxygenating device (10), and a film sealing machine (12) and a capping machine (13) are docked in sequence at the discharge end of the L-shaped oxygen-enriched channel (11); The bottom-supporting base conveyor belt (8) is provided with a group of first bases (81) adapted to the size of the tea cans, a movable bottom plate (82) is provided at the bottom of the first base (81), a connecting hinge (83) is provided at one end of the movable bottom plate (82), and a first cylinder (84) for controlling the opening and closing of the movable bottom plate (82) is also provided, and the movable end of the first cylinder (84) is hingedly fixed to the other end of the movable bottom plate (82) relative to the connecting hinge (83).

2. The Da Hong Pao tea oxygenation and alcoholization packaging machine according to claim 1, characterized in that: The weighing and canning device (9) comprises a tea storage hopper (91), a weighing device (92) arranged below the tea storage hopper (91), an openable electronic weighing platform (93) arranged at the bottom of the weighing device (92), and a tea inlet cylinder (94) arranged below the electronic weighing platform (93); and a discharge port of the tea storage hopper (91) is provided with a discharge valve (95).

3. The Da Hong Pao tea oxygenation and alcoholization packaging machine as claimed in claim 2, characterized in that: The electronic weighing platform (93) comprises a left flip plate (931) and a right flip plate (932), wherein a left rotating shaft (933) is fixedly arranged at the bottom of the left flip plate (931), and a right rotating shaft (934) is fixedly arranged at the bottom of the right flip plate (932), and a rotating motor (935) is also arranged, wherein a driving gear (936) is arranged at the output end of the rotating motor (935), and a driven gear (937) meshing with the driving gear (936) is arranged on both the left rotating shaft (933) and the right rotating shaft (934).

4. The Da Hong Pao tea oxygenation and alcoholization packaging machine according to claim 1, characterized in that: The oxygenating device (10) comprises a metering cylinder (101), an injection tube (102) arranged at the front end of the metering cylinder (101), and an injection plug (103) arranged in the metering cylinder (101); the injection plug (103) is connected to a compression spring (104); the injection plug (103) is also connected to a first oxygen branch pipe (105); and flow control valves (106) are provided on both the injection tube (102) and the first oxygen branch pipe (105).

5. The Da Hong Pao tea oxygenation and alcoholization packaging machine as claimed in claim 4, characterized in that: The oxygen filling device (10) further comprises an oxygen mask (107) located above the bottom-supporting base conveyor belt (8), and the oxygen mask (107) is connected to an upper and lower mechanical arm (108) for driving the oxygen mask (107) to move up and down.

6. The Da Hong Pao tea oxygenation and alcoholization packaging machine according to claim 1, characterized in that: An oxygen supply machine (14) is also provided. A first oxygen supply main pipe (15) is provided between the oxygen supply machine (14) and the canning oxygen filling sealed cabin (2). A second oxygen supply main pipe (16) is provided between the oxygen supply machine (14) and the L-shaped oxygen-enriched channel (11). A second oxygen branch pipe (17) is provided between the oxygen supply machine (14) and the oxygen ion wind washer (5). A third oxygen branch pipe (18) is provided between the oxygen supply machine (14) and the tea storage bucket (91). The first oxygen branch pipe (105) is connected to the oxygen supply machine (14).

7. The Da Hong Pao tea oxygenation and alcoholization packaging machine according to claim 1, characterized in that: The discharge end of the tea can conveyor belt (3) is provided with a hydraulic lifting rod (31) for lifting the discharge end of the tea can conveyor belt (3), and a group of second bases (32) are provided on the tea can conveyor belt (3), and a group of claws (33) are provided on the inner wall of the second base (32), and the claws (33) are connected to the ejection spring (34).

8. The Da Hong Pao tea oxygenation and alcoholization packaging machine according to claim 1, characterized in that: The ultraviolet ozone sterilization lamp (41) is provided with a first light source (411) emitting light with a wavelength of 254 nm and a second light source (412) emitting light with a wavelength of 185 nm.

9. The Da Hong Pao tea oxygenation and alcoholization packaging machine according to claim 1, characterized in that: The film sealing machine (12) is an automatic hydraulic tea can film sealing machine.

10. The operating method of the Dahongpao tea oxygenation and alcoholization packaging machine according to any one of claims 1 to 9, characterized in that: The following steps are involved: 1) Low-temperature oxygen supply in oxygen cabin: put Da Hong Pao tea into the storage hopper, open the valve of the third oxygen branch pipe, turn on the oxygen machine and refrigeration device, set the oxygen production time to 20-25 minutes, fill the oxygen cabin with 110-120 cubic meters / h, the purity of more than 90% oxygen, and reduce the temperature in the oxygen cabin to 5-8°C, the oxygen content in the air is between 22-25%, and then carry out oxygen filling and packaging; 2) Sterilization and cleaning of tea cans: lift the hydraulic lifting rod upward, so that the tea cans on the tea can conveyor belt are tilted upward by 10-15 degrees, and are input into the light sterilization tunnel, facing the ultraviolet ozone sterilization lamp, and sterilized for 1-2 minutes, and then the tea cans on the tea can conveyor belt are output from the light sterilization tunnel, and the downward-tilted oxygen ion wind washer is used to blow and clean the inside of the tea can for 10-15 seconds, and the oxygen ion wind blowing volume is set to 100-150 cubic meters / min; then the oxygen ion wind washer under the discharge end of the tea can conveyor belt is used to blow and clean the surface of the tea can for another 8-10 seconds, and the oxygen ion wind blowing volume is set to 200-250 cubic meters / min, and then the cleaning and sterilized tea cans are placed on the bottom-supporting base conveyor belt through the grabbing manipulator set at the discharge port of the conveyor belt and input into the canning oxygen filling sealed cabin; 3) Weighing and canning: Open the discharge valve below the storage hopper to discharge the tea. When discharging the tea, set the vibration frequency of the vibration storage hopper to 30-40 times / min to make the tea in the hopper fall into the disc of the electronic induction scale. After weighing, the tea can passes through the tea inlet tube and falls into the tea can below, and then is transported to the oxygenation device for oxygenation. 4) Quantitative oxygenation: When the weighed tea cans are transported to the oxygenation device, the oxygen mask moves downward through the mechanical arm to tightly cover the mouth of the tea can for oxygenation; after the oxygenation is completed, the movable bottom plate is opened, and the tea cans on the first base fall into the L-shaped oxygen-enriched channel and are transported to the film sealing machine through the conveyor belt at the bottom of the L-shaped oxygen-enriched channel; 5) Film sealing: Use the film-sticking robot to steadily cover the mouth of the tea can with the ultra-transparent polyester pressure-sensitive sealing film, and set the hydraulic pressure of the film sealing machine to 0.25MPa for hydraulic film sealing; 6) Screw-on sealing: Use a suction cup manipulator to place the outer cover padded with nano bamboo charcoal fiber sealing pad on the can mouth after film sealing, and then tighten the can cover in a clockwise direction to seal it.

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