Frozen seafood vacuum packaging device

Abstract

The utility model discloses a kind of frozen product seafood vacuum packaging devices, open the top cover of box top surface, the packaged frozen product seafood is placed into vacuum box, simultaneously, the opening of packaging bag is placed in heat sealing mechanism, then close top cover makes it and box tightly connected. Vacuum pump is started by control mechanism, vacuum state is formed in vacuum box by vacuum pipe, vacuum is also formed in packaging bag, and then heat sealing assembly is started to heat seal packaging bag mouth. And because frozen product seafood has ice crystal, control mechanism starts refrigeration mechanism, collects water vapor by condensing trap, and is frozen, adheres in condensing trap, solve the technical problem that ice crystal is easy to sublimate, a large amount of water vapor is absorbed into vacuum pump to dilute vacuum pump oil, reduce the efficiency and service life of pump in the process of vacuumizing of existing equipment.

Description

Technical Field

[0001] This utility model relates to the field of vacuum packaging technology, specifically to a vacuum packaging device for frozen seafood. Background Technology

[0002] For frozen seafood packaging, vacuum sealing can inhibit the growth of aerobic microorganisms, slow down oil oxidation, and prevent spoilage; freezing vacuum further reduces microbial activity and enzyme reaction rates. At the same time, it is also an important method for extending food shelf life and maintaining food quality, effectively preventing freezing, burning, and oxidation, and preserving the freshness and taste of seafood.

[0003] Existing vacuum equipment includes a vacuum chamber, a vacuum system, and a heat-sealing device. It works by placing packaged frozen seafood into the vacuum chamber, then using the vacuum system to evacuate the packaging bag inside, followed by a heat-sealing mechanism to seal the opening. However, seafood is a frozen product with numerous ice crystals on its surface. During the vacuuming process, these ice crystals easily sublimate, generating a large amount of water vapor that is drawn into the vacuum pump, diluting the pump oil and reducing its efficiency and lifespan. Utility Model Content

[0004] The purpose of this invention is to provide a vacuum packaging device for frozen seafood to solve the technical problem that in the existing equipment, ice crystals easily sublimate during the vacuuming process, generating a large amount of water vapor that is drawn into the vacuum pump, diluting the vacuum pump oil and reducing the pump's efficiency and service life.

[0005] The technical solution of this utility model is implemented as follows:

[0006] A vacuum packaging device for frozen seafood includes a box body with a rotatable top cover. A vacuum chamber is located at the top of the box body, and a support plate is located on the inner side wall of the box body. A vacuum pump is located on the top surface of the support plate, and the vacuum pump is connected to the side wall of the vacuum chamber via a vacuum tube. A condensation trap is connected to the side of the vacuum tube. A refrigeration mechanism is located between the bottom surface of the support plate and the bottom surface of the box body, and the refrigeration mechanism is connected to the condensation trap. A control mechanism is located on the side of the box body, and a heat sealing assembly is located on the top cover and the bottom surface of the vacuum chamber. The refrigeration mechanism and the heat sealing assembly are both connected to the control mechanism.

[0007] A further technical solution is that a sealing strip is provided on the periphery of the bottom surface of the top cover, and a sealing groove is provided on the top surface of the box body, with the sealing strip and the sealing groove being tightly connected.

[0008] A further technical solution is that the control mechanism includes a controller, a control panel, and a battery pack. The input terminal of the controller is connected to the control panel, and the output terminal of the controller is connected to the heat sealing assembly and the refrigeration mechanism. The battery pack supplies power to the controller and the refrigeration mechanism, the refrigeration mechanism is connected to the condenser trap, and the heat sealing assembly is distributed between the top cover and the vacuum chamber.

[0009] A further technical solution is that the refrigeration mechanism built into the housing includes an evaporator, a compressor, a condenser, and an expansion valve. The evaporator is provided with an evaporation chamber connected to the condensate trap. The evaporator is connected in sequence to the compressor, the condenser, and the expansion valve. The expansion valve is connected to the evaporator to form a circulation loop. The compressor is connected to the controller. Both the condenser and the compressor are connected to the battery pack.

[0010] A further technical solution is that the front of the housing has ventilation holes facing the condenser.

[0011] A further technical solution is that the heat sealing assembly includes a first heat sealing strip and a second heat sealing strip, both of which are connected to the controller. The first heat sealing strip or the second heat sealing strip is disposed on the bottom surface of the top cover, and the first heat sealing strip or the second heat sealing strip is disposed on the top surface of the vacuum chamber.

[0012] A further technical solution is that the opposing surfaces of the first heat-sealing strip or the second heat-sealing strip are provided with mutually compatible indentations or protrusions.

[0013] A further technical solution is that the bottom surface of the box is provided with multiple rollers.

[0014] A further technical solution is to provide a rod-type handrail on the side of the box.

[0015] A further technical solution is that the bottom surface of the condensate trap is connected to a drain pipe, and the sides are equipped with symmetrical electric heaters. The bottom end of the drain pipe is equipped with a drain valve that is connected to the bottom surface of the box. The electric heaters and the drain valve are both connected to the control mechanism.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. Open the top cover of the vacuum chamber and place the packaged frozen seafood into it. Simultaneously, place the opening of the packaging bag into the heat-sealing mechanism, then close the top cover to ensure a tight connection with the chamber. The vacuum pump is activated via the control mechanism, creating a vacuum inside the chamber through the vacuum tube, thus creating a vacuum within the packaging bag. The heat-sealing assembly then seals the bag opening. Because frozen seafood contains ice crystals, the control mechanism activates the refrigeration mechanism, collecting water vapor through a condensate trap and freezing it to adhere to the trap. This solves the technical problem in existing equipment where ice crystals easily sublimate during vacuuming, generating large amounts of water vapor that is drawn into the vacuum pump, diluting the pump oil and reducing pump efficiency and lifespan.

[0018] 2. By installing a sealing strip around the bottom of the top cover, the top cover is tightly connected to the top surface of the chamber when it covers the top surface of the chamber, thus improving the airtightness of the vacuum chamber.

[0019] 3. The condensate trap is equipped with a drain valve at the bottom for periodic defrosting and drainage. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0021] Figure 2 This is a frontal cross-sectional view of the present invention.

[0022] In the diagram, 1. Box body; 2. Top cover; 3. Vacuum chamber; 4. Support plate; 5. Vacuum pump; 6. Vacuum tube; 7. Condensation trap; 8. Sealing strip; 9. Sealing groove; 10. Controller; 11. Control panel; 12. Battery pack; 13. Evaporator; 14. Compressor; 15. Condenser; 16. Expansion valve; 17. Vent; 18. First heat seal; 19. Second heat seal; 20. Roller; 21. Handrail; 22. Drain pipe; 23. Heater; 24. Drain valve. Detailed Implementation

[0023] To better understand the technical content of this utility model, specific embodiments are provided below, and the utility model will be further described in conjunction with the accompanying drawings.

[0024] See Figures 1 to 2 This utility model provides a vacuum packaging device for frozen seafood, including a box body 1, a top cover 2 rotatably mounted on the top surface of the box body 1, a vacuum chamber 3 mounted on the top inside the box body 1, a support plate 4 mounted on the inner side wall of the box body 1, a vacuum pump 5 mounted on the top surface of the support plate 4, the vacuum pump 5 being connected to the side wall of the vacuum chamber 3 via a vacuum tube 6, a condensation trap 7 being connected to the side of the vacuum tube 6, a refrigeration mechanism being mounted between the bottom surface of the support plate 4 and the bottom surface of the inner side of the box body 1, the refrigeration mechanism being connected to the condensation trap 7, a control mechanism being mounted on the side of the box body 1, and a heat sealing assembly being mounted on the top cover 2 and the bottom surface of the vacuum chamber 3, both the refrigeration mechanism and the heat sealing assembly being connected to the control mechanism.

[0025] Specifically, the top cover 2 of the box 1 is opened, and the packaged frozen seafood is placed into the vacuum box 3. Simultaneously, the opening of the packaging bag is placed in the heat-sealing mechanism, and then the top cover 2 is closed to ensure a tight connection with the box 1. The vacuum pump 5 is activated via the control mechanism, creating a vacuum state inside the vacuum box 3 through the vacuum tube 6, thus creating a vacuum inside the packaging bag. The heat-sealing assembly then heat-seals the opening of the packaging bag. Since the frozen seafood contains ice crystals, the control mechanism activates the refrigeration mechanism, collecting water vapor through the condenser 7 and freezing it to adhere to the condenser 7. This solves the technical problem in existing equipment where ice crystals easily sublimate during vacuuming, generating a large amount of water vapor that is drawn into the vacuum pump 5, diluting the pump oil and reducing pump efficiency and lifespan.

[0026] Preferably, the bottom surface of the top cover 2 is provided with a sealing strip 8, and the top surface of the box body 1 is provided with a sealing groove 9, with the sealing strip 8 and the sealing groove 9 tightly connected.

[0027] In this embodiment, a sealing strip 8 is provided on the periphery of the bottom surface of the top cover 2. When the top surface of the box 1 is covered, the sealing strip 8 provided on the top cover 2 is tightly connected with the sealing groove 9 provided on the top surface of the box 1, thereby improving the airtightness of the vacuum box 3.

[0028] Preferably, the control mechanism includes a controller 10, a control panel 11, and a battery pack 12. The input terminal of the controller 10 is connected to the control panel 11, and the output terminal of the controller 10 is connected to the heat sealing assembly and the refrigeration mechanism. The battery pack 12 supplies power to the controller 10 and the refrigeration mechanism. The refrigeration mechanism is connected to the condenser trap 7. The heat sealing assembly is distributed between the top cover 2 and the vacuum chamber 3.

[0029] In this embodiment, the controller 10 is a SMART200 PLC. The control panel 11 is a DZA-01 model, and its input terminal is connected to the controller 10. The control panel 11 is embedded in the side of the housing 1, and its side is connected to the controller 10. A battery pack 12 is located on the side of the controller 10. The controller 10 controls the cooling mechanism, which draws moisture from the vacuum tube 6 through the condenser trap 7. It controls the heating state of the heat sealing strip in real time, that is, it melts the ice crystals in the vacuum bag before heat sealing, and then heats the opening of the vacuum bag to heat seal it.

[0030] Preferably, the refrigeration mechanism built into the housing 1 includes an evaporator 13, a compressor 14, a condenser 15, and an expansion valve 16. The evaporator 13 is provided with an evaporation box and is connected to the condenser trap 7. The evaporator 13 is connected to the compressor 14, the condenser 15, and the expansion valve 16 in sequence. The expansion valve 16 is connected to the evaporator 13 to form a circulation loop. The compressor 14 is connected to the controller 10, and both the condenser 15 and the compressor 14 are connected to the battery pack 12.

[0031] It should be noted that the compressor 14 and condenser 15 are connected to the battery pack 12 at a high potential via a relay. The controller 10, on the other hand, is connected to the battery pack 12 at a low potential.

[0032] In this embodiment, the low-temperature, low-pressure gaseous refrigerant is compressed into a high-temperature, high-pressure gas by the compressor 14 and sent into the condenser 15. In the condenser 15, the refrigerant releases heat to the outside and condenses into a high-pressure liquid. Then, the liquid refrigerant flows through the expansion valve 16, is throttled and depressurized, and becomes a low-temperature, low-pressure vapor-liquid mixture. Finally, this low-temperature mixture enters the evaporator 13, absorbs heat from the vacuum tube 6 and evaporates violently, making the wall temperature of the evaporator 13 much lower than the dew point of the ambient air, thereby rapidly condensing the water vapor in the tube into frost on the condensate trap 7, achieving the purpose of extracting water vapor to maintain vacuum dryness.

[0033] Preferably, the front of the housing 1 is provided with a ventilation hole 17 facing the condenser 15.

[0034] In this embodiment, the ventilation holes 17 in the housing 1 are used for heat dissipation of the condenser 15 during operation.

[0035] Preferably, the heat sealing assembly includes a first heat sealing strip 18 and a second heat sealing strip 19. Both the first heat sealing strip 18 and the second heat sealing strip 19 are connected to the controller 10. The first heat sealing strip 18 or the second heat sealing strip 19 is disposed on the bottom surface of the top cover 2, and the first heat sealing strip 18 or the second heat sealing strip 19 is disposed on the top surface of the vacuum chamber 3.

[0036] In this embodiment, the opening of the vacuum bag is placed between the first heat-sealing strip 18 and the second heat-sealing strip 19. After the vacuum bag is evacuated, before heat sealing, the controller 10 controls the first heat-sealing strip 18 or the second heat-sealing strip 19 to melt the ice crystals in the vacuum bag, and then increases the heat of the first heat-sealing strip 18 or the second heat-sealing strip 19 to heat seal the opening of the vacuum bag.

[0037] Preferably, the opposite surfaces of the first heat-sealing strip 18 or the second heat-sealing strip 19 are provided with mutually compatible recesses or protrusions.

[0038] In this embodiment, by setting appropriate indentations or protrusions, the opening of the vacuum bag can be tightly heat-sealed, while improving its appearance.

[0039] Preferably, the bottom surface of the housing 1 is provided with multiple rollers 20.

[0040] In this embodiment, the rollers 20 facilitate moving the housing 1 to a designated location.

[0041] Preferably, the side of the box body 1 is provided with a rod-type handrail 21.

[0042] In this embodiment, the box 1 is moved to a predetermined location by using a hand-held lever 21 and rollers 20.

[0043] Preferably, the bottom surface of the condensate trap 7 is connected to a drain pipe 22, and the sides are provided with symmetrical electric heaters 23. The bottom end of the drain pipe 22 is provided with a drain valve 24 that is connected to the bottom surface of the housing 1. The electric heaters 23 and the drain valve 24 are both connected to the control mechanism.

[0044] It should be noted that the electric heater 23 can be an aluminum cast heater, and the drain valve 24 can be a solenoid valve.

[0045] In this embodiment, after the refrigeration mechanism and vacuum pump 5 stop working, the frost that condenses and adheres to the inner wall of the condenser trap 7 is heated by the electric heater 23 activated by the controller 10 and melted into water. The water flows into the drain pipe 22, and the controller 10 opens the drain valve 24 to discharge the water from the condenser trap 7, thereby protecting the vacuum pump 5 from damage and ensuring that the condenser trap 7 can work continuously and efficiently.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A vacuum packaging device for frozen seafood, characterized in that, The device includes a housing with a rotatable top cover. A vacuum chamber is located at the top of the housing. A support plate is located on the inner side wall of the housing. A vacuum pump is located on the top surface of the support plate. The vacuum pump is connected to the side wall of the vacuum chamber via a vacuum tube. A condenser is connected to the side of the vacuum tube. A refrigeration mechanism is located between the bottom surface of the support plate and the bottom surface of the housing. The refrigeration mechanism is connected to the condenser. A control mechanism is located on the side of the housing. A heat-sealing assembly is located between the top cover and the bottom surface of the vacuum chamber. Both the refrigeration mechanism and the heat-sealing assembly are connected to the control mechanism.

2. The vacuum packaging device for frozen seafood according to claim 1, characterized in that, A sealing strip is provided on the periphery of the bottom surface of the top cover, and a sealing groove is provided on the top surface of the box body. The sealing strip and the sealing groove are tightly connected.

3. The vacuum packaging device for frozen seafood according to claim 1, characterized in that, The control mechanism includes a controller, a control panel, and a battery pack. The input terminal of the controller is connected to the control panel, and the output terminal of the controller is connected to the heat sealing assembly and the refrigeration mechanism. The battery pack supplies power to the controller and the refrigeration mechanism. The refrigeration mechanism is connected to the condenser trap. The heat sealing assembly is distributed between the top cover and the vacuum chamber.

4. The vacuum packaging device for frozen seafood according to claim 3, characterized in that, The refrigeration mechanism built into the housing includes an evaporator, a compressor, a condenser, and an expansion valve. The evaporator is equipped with an evaporation chamber connected to the condensate trap. The evaporator is sequentially connected to the compressor, the condenser, and the expansion valve. The expansion valve is connected to the evaporator to form a circulation loop. The compressor is connected to the controller. Both the condenser and the compressor are connected to the battery pack.

5. A vacuum packaging device for frozen seafood according to claim 4, characterized in that, The front of the housing has a ventilation hole facing the condenser.

6. A vacuum packaging device for frozen seafood according to claim 3, characterized in that, The heat sealing assembly includes a first heat sealing strip and a second heat sealing strip, both of which are connected to the controller. The first heat sealing strip or the second heat sealing strip is disposed on the bottom surface of the top cover and on the top surface of the vacuum chamber.

7. A vacuum packaging device for frozen seafood according to claim 6, characterized in that, The opposing surfaces of the first or second heat-sealing strip are provided with mutually compatible indentations or protrusions.

8. The vacuum packaging device for frozen seafood according to claim 1, characterized in that, The bottom surface of the box is equipped with multiple rollers.

9. A vacuum packaging device for frozen seafood according to claim 1, characterized in that, The side of the box is equipped with a bar-type handrail.

10. A vacuum packaging device for frozen seafood according to claim 1, characterized in that, The bottom of the condensate trap is connected to a drain pipe, and the sides are equipped with symmetrical electric heaters. The bottom end of the drain pipe is equipped with a drain valve that is connected to the bottom of the housing. The electric heaters and the drain valve are both connected to the control mechanism.

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