Food filling and packaging system

Abstract

The utility model discloses a food filling and packaging system which comprises a circulating feeding device, a packaging material conveying device located below the circulating feeding device, and a packaging material storing and taking device, a solid matter poking device, a liquid matter metering and injecting device and a sealing device which are sequentially arranged in the conveying direction of the packaging material conveying device. The circulating feeding device is used for circularly feeding solids, the solid poking device is used for filling the solids on the circulating feeding device into packing materials, the liquid metering and injecting device is used for quantitatively injecting the liquid into the packing materials, the packing material storing and taking device is used for storing and taking out the packing materials, and the sealing device is used for sealing the packing materials. The packing material conveying device is used for conveying packing materials. The food filling and packaging system has the advantages of being good in production continuity, high in production efficiency, high in automation degree, high in filling precision, high in adaptability and capable of achieving quantitative filling of solid objects and liquid objects.

Description

Technical Field

[0001] The utility model relates to the technical field of food processing equipment, in particular to a food filling and packaging system. Background Art

[0002] In the field of food processing, food usually needs to be filled into packaging materials and packaged. Take mustard greens as an example. Mustard greens are a common pickled vegetable. When pickled mustard greens are sold on the market, they need to be cut and packaged according to specifications. After the pickled mustard greens are filled into bags, a certain amount of juice needs to be injected. The weight of the juice and the sour mustard greens together constitute the net content of the well-packaged sour mustard greens, that is, both solids and liquids need to be added in a quantitative manner. In the current sauerkraut packaging method, the processes of filling into bags, injecting juice, and vacuum sealing are all done manually, and require a lot of manual production, low production efficiency, low degree of automation, and difficulty in quality control. Moreover, currently, a plunger pump is usually used to inject juice directly into the packaging bag. Since the plunger pump controls the extrusion pressure by the moving speed of the plunger during the process of squeezing the liquid out, the extrusion pressure is inconvenient to control precisely, and the liquid material often splashes out of the packaging bag during squeezing, resulting in inaccurate metering. Since the volume of the working chamber of the plunger pump is fixed, when the plunger pump uses up the liquid material in the chamber, it needs to re-inhale the liquid material. During the inhalation process, the plunger pump cannot perform the extrusion work, so there will be pauses, which is not conducive to continuous production.

[0003] Chinese patent publication CN112193518A discloses a sauerkraut bottle filling device, in which a conveyor belt drives the entire sauerkraut bottle to move. After the sauerkraut is dropped from the top opening of the hopper, a stirring motor drives a stirring paddle to break up any clumped sauerkraut. Simultaneously, a positioning claw, driven by the telescopic rod, positions the sauerkraut bottle directly below the discharge port. The stirred sauerkraut is then filled through the discharge port. The applicant has discovered several drawbacks in this technical solution:

[0004] 1) The device can only automatically fill the solid matter in the sauerkraut, and cannot complete the subsequent processes such as juice injection and vacuum sealing. The production is discontinuous, the production efficiency is low, and the degree of automation is low;

[0005] 2) Multiple portions of sauerkraut are added to the silo at one time, and after being broken up, they are filled portion by portion through a control valve. The weight of each portion of sauerkraut cannot be precisely controlled, that is, solid matter cannot be quantitatively filled, and liquid matter cannot be quantitatively injected. The filling accuracy is low, and it cannot meet the filling requirements of the coexistence of solid and liquid matter in a quantitative manner, resulting in poor adaptability. Utility Model Content

[0006] The technical problem to be solved by the utility model is to overcome the deficiencies of the existing technology and provide a food filling and packaging system with good production continuity, high production efficiency, high degree of automation, high filling accuracy, strong adaptability and the ability to meet the quantitative filling of solid and liquid objects.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] A food filling and packaging system comprises a circulating feeding device, a packaging material conveying device located below the circulating feeding device, and a packaging material storage and retrieval device, a solid material poking device, a liquid material metering and injection device, and a sealing device arranged in sequence along the conveying direction of the packaging material conveying device. The circulating feeding device is used for circulating solid material, the solid material poking device is used for filling the solid material on the circulating feeding device into the packaging material, the liquid material metering and injection device is used for quantitatively injecting liquid into the packaging material, the packaging material storage and retrieval device is used for storing and removing packaging material, the sealing device is used for sealing the packaging material, and the packaging material conveying device is used for conveying packaging material.

[0009] As a further improvement of the above technical solution:

[0010] The liquid metering injection device comprises a juice pool, a pump, a sealed container, a metering valve and a juice injection head assembly which are connected in sequence. The juice injection head assembly is used to cooperate with the packaging material to inject the liquid.

[0011] The juice injection head assembly includes a compression drive, a compression member and a hose. One end of the hose is connected to the metering valve and the other end is used to inject liquid into the packaging material. The compression drive is connected to the compression member to drive the compression member to compress the hose.

[0012] The circulating feeding device is provided with a feeding port, the bottom of which is connected to a feeding hopper assembly, and the solid matter poke device is located above the feeding port;

[0013] A packaging material holding device is also provided between the circulating feeding device and the packaging material conveying device. The packaging material holding device includes a holding mounting plate and a holding mechanism provided on the holding mounting plate. A bag opening assembly is provided between the holding mechanism and the filling hopper assembly. An interface is provided on the filling hopper assembly. The juice injection port of the liquid metering injection device is connected to the interface of the filling hopper assembly.

[0014] A packaging material holding device is also provided between the circulating feeding device and the packaging material conveying device. The packaging material holding device includes a holding mounting plate and two groups of spaced-apart holding mechanisms. The holding mechanisms are provided on the holding mounting plate. A bag opening assembly is provided between one group of the holding mechanisms and the circulating feeding device. A liftable juice injection mounting seat is provided above the other group of the holding mechanisms. The juice injection port of the liquid metering injection device is provided on the juice injection mounting seat.

[0015] The holding mechanism includes an opening and closing drive assembly, a holding jaw mounting plate and a pair of holding jaws arranged on the holding jaw mounting plate. The holding jaws are hinged to the jaw mounting plate, and an angle is formed between the two holding jaws. A limiting link is provided on the holding jaws, and the limiting links on the two holding jaws are hinged. The holding jaw opening and closing drive assembly is used to drive the two holding jaws to swing to adjust the angle between the two holding jaws.

[0016] The packaging material conveying device comprises a conveying base and a plurality of groups of conveying clamps arranged at intervals, and the conveying clamps are movably arranged on the conveying base.

[0017] The packaging material conveying device also includes a longitudinal conveying mechanism, a transverse adjustment mechanism and a conveying clamp mounting plate. The longitudinal conveying mechanism is arranged on the conveying base, the transverse adjustment mechanism is arranged on the longitudinal conveying mechanism along the longitudinal sliding direction, the conveying clamp mounting plate is arranged on the transverse adjustment mechanism along the transverse sliding direction, and the conveying clamp is arranged on the conveying clamp mounting plate.

[0018] The packaging material storage and retrieval device includes a bag retrieval mechanism, a bag loading mechanism and a packaging storage and retrieval rack. The packaging storage and retrieval rack is provided with a bag storage box. The bag retrieval mechanism includes a suction cup assembly. The suction cup assembly is located below the bag storage box and can be raised and lowered relative to the packaging storage and retrieval rack. The bag loading mechanism includes a bag loading clamp that can rotate relative to the packaging storage and retrieval rack. The bag loading clamp is used to clamp the packaging material of the suction cup assembly onto the packaging material conveying device.

[0019] The sealing device comprises a bag transfer mechanism and vacuum boxes arranged on both sides of the bag transfer mechanism. The vacuum box is provided with an openable and closable box door, and a heating sealing mechanism is arranged inside the vacuum box.

[0020] Compared with the prior art, the advantages of the present invention are:

[0021] The food filling and packaging system of the present invention integrates the processes of sauerkraut feeding, juice injection, packaging bag storage, transportation and sealing into one, and has good production continuity, high production efficiency and high degree of automation. When the sauerkraut is fed, the sauerkraut can be cut, weighed, kneaded into balls and other processes in advance, so that the circulating feeding device can feed the sauerkraut in a quantitative manner, and the liquid metering and injection device can fill the juice into the packaging bag in a quantitative manner, which can meet the filling requirements of the coexistence of sauerkraut and juice in a quantitative manner, and has high filling accuracy and strong adaptability.

[0022] The food filling and packaging system of the utility model has a liquid metering injection device which is provided with a sealed container. Compared with the existing method of injecting juice directly into the packaging bag with a plunger pump, the splashing of juice during the injection into the packaging bag can be reduced by adjusting the pressure in the sealed container, and the metering is more accurate. Through the continuous operation of the pump, it is only necessary to ensure that there is juice in the juice pool, and the entire system can operate continuously without stopping to replenish water like a plunger pump, which is more efficient.

[0023] In this food filling and packaging system, after the metering valve is closed, the compression drive drives the compression member to compress the hose to prevent dripping and make the juice injection more accurate.

[0024] The food filling and packaging system of the present invention can, when the packaging material conveying device conveys the packaging bag to the filling hopper assembly or the metering juice injection device, be clamped and held by the packaging material holding device for sauerkraut filling or juice injection, thereby preventing the sauerkraut filling or juice injection process from occupying the packaging material conveying device. The packaging material conveying device can convey new packaging bags and seal and convey filled packaging bags, thereby improving production continuity and increasing production efficiency.

[0025] The food filling and packaging system of the present invention has two holding jaws that respectively clamp the two sides of the packaging bag when the holding mechanism clamps and holds the packaging bag. When the sauerkraut filling or the juice injection is completed, the holding jaw opening and closing drive assembly drives the two holding jaws to open to straighten the packaging bag, thereby preventing the sauerkraut or juice from spilling out during subsequent transportation on the packaging material conveying device.

[0026] The food filling and packaging system of the present invention has the following advantages: when the packaging material conveying device conveys the packaging bag filled with sauerkraut and injected with juice to the sealing device, the bag transfer mechanism removes the packaging bag and transfers it to a vacuum box for sealing. Since the sealing speed of the packaging bag is lower than the discharging speed of the packaging bag, two vacuum boxes are provided to perform sealing in turn to avoid stopping, thereby improving work continuity and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural diagram of the food filling and packaging system of the present utility model.

[0028] Figure 2 It is a structural schematic diagram of a circulating feeding device in a food filling and packaging system of the present utility model.

[0029] Figure 3 It is a structural diagram of the filling and conveying mechanism in the food filling and packaging system of the utility model.

[0030] Figure 4 It is a structural schematic diagram of a filling hopper assembly in the food filling and packaging system of the utility model.

[0031] Figure 5The utility model is a structural diagram of a solid material prying device in a food filling and packaging system.

[0032] Figure 6 It is a schematic diagram of a liquid metering injection device in a food filling and packaging system of the present invention.

[0033] Figure 7 It is a structural schematic diagram of a juice injection head assembly in the food filling and packaging system of the present utility model.

[0034] Figure 8 It is a structural schematic diagram of a packaging material storage and retrieval device in a food filling and packaging system of the present invention.

[0035] Figure 9 It is a structural schematic diagram of the bag loading mechanism in the food filling and packaging system of the present utility model.

[0036] Figure 10 It is a structural schematic diagram of the sealing device in the food filling and packaging system of the utility model.

[0037] Figure 11 It is a structural schematic diagram of the bag transfer mechanism in the food filling and packaging system of the utility model.

[0038] Figure 12 It is a structural diagram of a vacuum box in the food filling and packaging system of the utility model.

[0039] Figure 13 It is a schematic diagram of the internal structure of the vacuum box in the food filling and packaging system of the utility model.

[0040] Figure 14 It is a main view of the vacuum box in the food filling and packaging system of the utility model.

[0041] Figure 15 It is a structural schematic diagram of a packaging material holding device in a food filling and packaging system of the present invention.

[0042] Figure 16 It is a structural diagram of the holding mechanism in the food filling and packaging system of the present utility model.

[0043] Figure 17 It is a structural schematic diagram of the bag opening component in the food filling and packaging system of the utility model.

[0044] Figure 18 It is a structural schematic diagram of a packaging material conveying device and a packaging material holding device in a food filling and packaging system of the present invention.

[0045] Figure 19 It is a structural schematic diagram of a packaging material conveying device in a food filling and packaging system of the present invention.

[0046] The reference numerals in the figure indicate: 1. Circulating feeding device; 11. Filling port; 111. Baffle filling port; 12. Filling hopper assembly; 121. Fixed filling hopper; 122. Lifting filling hopper; 13. Feeding conveyor line; 14. Filling conveying mechanism; 141. Filling circulation line; 1411. Paddle; 142. Conveying guide trough; 15. Recovery conveyor line; 2. Solid material poke device; 21. Driving wheel; 22. Driven wheel; 23. Poke drive element; 24. Synchronous belt; 25. Poke rod; 26. Poke head; 27. Guide sleeve; 3. Liquid material metering injection device; 31. Juice tank; 32. Filter; 33. Pump; 34. Sealed container; 341. Pressure gauge; 35. Metering valve; 36. Juice injection head assembly; 362. Juice injection head; 363. Compressing drive; 364. Compressing member; 37. Pressure relief valve; 38. Drainage tank; 4. Packaging material storage and retrieval device; 41. Bag taking mechanism; 411. Suction cup assembly; 42. Bag loading mechanism; 421. Bag loading gripper; 422. Bag loading rack; 423. Bag loading drive; 424. Power shaft; 425. Connecting plate; 43. Packaging storage and retrieval rack; 431. Bag storage box; 4311. First bag storage plate; 4312. Second bag storage plate; 4313. Rear stop; 432. Adjustable support column; 43 3. Sliding rod; 5. Sealing device; 51. Bag transfer mechanism; 511. Turntable; 512. Lifting platform; 513. Sliding seat; 514. Bag transfer clamp mounting plate; 515. Bag transfer clamp; 52. Vacuum box; 521. Box door; 522. Connecting rod seat; 523. Connecting rod support seat; 524. Power connecting rod; 525. Cover opening cylinder; 526. Buffer pad; 53. Heating and sealing mechanism; 531. Heating block; 532. Sealing clamp; 533. Sealing mounting plate; 534. Wedge block; 535. Sealing cylinder; 6. Packaging material holding device; 61. Holding mounting plate; 62. Holding mechanism; 621. Clamp Mounting plate; 622, holding clamp; 6221, limiting link; 623, opening and closing drive assembly; 63, bag opening assembly; 631, bag opening cylinder; 632, bag opening mounting cover; 633, front connecting rod; 634, rear connecting rod; 635, front suction cup; 636, rear suction cup; 64, juice injection mounting seat; 7, packaging material conveying device; 71, conveying clamp; 72, conveying base; 73, longitudinal conveying mechanism; 731, longitudinal guide rail; 732, transmission slider; 74, transverse adjustment mechanism; 741, transverse adjustment drive; 742, slider connecting plate; 743, cross bar; 75, conveying clamp mounting plate; 9, material barrel. DETAILED DESCRIPTION

[0047] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0048] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0049] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0050] In this utility model, unless otherwise specified or limited, the terms "assemble," "connect," "connect," "fix," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0051] Example 1:

[0052] like Figures 1 to 19 As shown, the food filling and packaging system of this embodiment includes a circulating feeding device 1, a packaging material conveying device 7 located below the circulating feeding device 1, and a packaging material storage and retrieval device 4, a solid material poking device 2, a liquid material metering and injection device 3 and a sealing device 5 arranged in sequence along the conveying direction of the packaging material conveying device 7. The circulating feeding device 1 is used for circulating solid material, the solid material poking device 2 is used for filling the solid material on the circulating feeding device 1 into the packaging material, the liquid material metering and injection device 3 is used for quantitatively injecting liquid into the packaging material, the packaging material storage and retrieval device 4 is used for storing and taking out packaging materials, the sealing device 5 is used for sealing the packaging material, and the packaging material conveying device 7 is used for conveying packaging materials.

[0053] In this embodiment, the filling and packaging production process is illustrated by taking sauerkraut as food and packaging bags as packaging materials. The food filling and packaging system of this embodiment stores the packaging bags on the packaging material storage and retrieval device 4 during production. The packaging material storage and retrieval device 4 takes the stored packaging bags down to the packaging material conveying device 7. The packaging material conveying device 7 conveys the packaging bags to the bottom of the solid material poke device 2, and the sauerkraut processed by processes such as cutting, weighing, and kneading is added to the material barrel 9. A portion of sauerkraut to be filled is placed in each material barrel 9, and the material barrel 9 is circulated and conveyed on the circulating feeding device 1. When the material barrel 9 is conveyed to the solid material poke device 2, the solid material poke device 2 pokes the material and fills the sauerkraut into the packaging bag on the packaging material conveying device 7. Then, the packaging material conveying device 7 continues to convey the packaging bag containing sauerkraut to the liquid material metering injection device 3. The liquid material metering injection device 3 injects a quantitative amount of juice into the packaging bag. Finally, the packaging material conveying device 7 continues to convey the packaging bag containing sauerkraut and juice to the sealing device 5 for sealing, thereby completing the filling and packaging of the sauerkraut. The food filling and packaging system of the present embodiment integrates the processes of sauerkraut loading, juice injection, packaging bag storage, transportation and sealing into one, with good production continuity, high production efficiency and high degree of automation. When the sauerkraut is loaded, the sauerkraut can be cut, weighed, kneaded into balls and other processes in advance, so that the circulating loading device 1 can load the sauerkraut in a quantitative manner, and the liquid metering and injection device 3 can fill the juice into the packaging bag in a quantitative manner, which can meet the filling requirements of the coexistence of quantitative sauerkraut and juice, with high filling accuracy and strong adaptability.

[0054] In this embodiment, Figures 1 to 3As shown, a feeding port 11 is provided on the circulating feeding device 1, a feeding hopper assembly 12 is connected to the bottom of the feeding port 11, and the solid matter poking device 2 is located above the feeding port 11; the circulating feeding device 1 includes a feeding conveying line 13, a filling conveying mechanism 14 and a recovery conveying line 15 connected in sequence end to end, the filling conveying mechanism 14 includes a filling circulation line 141 and a conveying guide groove 142 arranged on the outer circumference of the filling circulation line 141, a plurality of spaced apart paddles 1411 are provided on the filling circulation line 141, the feeding port 11 is opened on the conveying guide groove 142, and a baffle feeding port 111 that can open and close the feeding port 11 is provided on the feeding port 11, the inlet of the conveying guide groove 142 is connected to the outlet of the feeding conveying line 133, and the outlet of the conveying guide groove 142 is connected to the inlet of the recovery conveying line 15. During filling, the sauerkraut processed through processes such as cutting, weighing, and kneading is added to the material barrel 9, and a portion of sauerkraut to be filled is placed in each material barrel 9. The feeding conveyor line 13 conveys the material barrel 9 to the filling conveyor mechanism 14 to complete the feeding; the filling conveyor mechanism 14 conveys the material barrel 9 to the filling port 11 accordingly, opens the filling port baffle 111, and the sauerkraut falls from the bottom of the material barrel 9 into the filling hopper assembly 12. The poking mechanism 2 pokes the material and fills the sauerkraut in the filling hopper assembly 12 into the packaging bag (not shown in the figure) below the filling hopper assembly 12. The filling conveyor mechanism 14 continues to convey the material barrel 9 to the recycling conveyor line 15 to complete the filling; the recycling conveyor line 15 recycles the empty material barrel 9 and adds new sauerkraut to the recycled hole material barrel 9. The recycling conveyor line 15 continues to convey the material barrel 9 to the feeding conveyor line 13 for a new round of feeding, filling and recycling.

[0055] In this embodiment, Figure 3 As shown, after the feeding conveying line 13 conveys the barrel 9 to the conveying guide groove 142, the filling circulation line 141 drives the paddle 1411 to move, and each barrel 9 is sequentially inserted into each paddle 1411. The paddle 1411 conveys the barrel 9 evenly and orderly, so that each barrel 9 is aligned with each filling port 11, preventing the barrel 9 from being too dispersed or piled up during the conveying process, simplifying the positioning process of the barrel 9 and the filling port 11, and having high reliability and high production efficiency.

[0056] In this embodiment, in order to enable the feeding conveyor line 13 and the filling circulation line 141 together with the paddle 1411 to continuously move the barrel 9, there is a certain speed ratio relationship between the feeding conveyor line 13 and the filling circulation line 141, which is adjusted and set by the motor, and the sensor is used to detect whether the paddle 1411 reaches the specified position.

[0057] In this embodiment, Figure 4As shown, the filling hopper assembly 12 includes a fixed filling hopper 121 connected below the filling port 11 and a lifting filling hopper 122 that is elevated above the fixed filling hopper 121. The lifting filling hopper 122 is connected to a cylinder for lifting. During filling, the packaging bag is placed below the filling hopper assembly 12, and the lifting filling hopper 122 descends and extends into the packaging bag before filling. This prevents vegetable leaves from remaining at the bag opening, which could cause a loose seal and leak air or juice.

[0058] In this embodiment, Figure 5 As shown, the solid material prying device 2 includes a guide sleeve 27, a prying head 26, a prying rod 25, a driving wheel 21, a driven wheel 22, a prying drive member 23 (such as a motor, etc.) connected to the driving wheel 21, and a synchronous belt 24 wound between the driving wheel 21 and the driven wheel 22. The prying rod 25 is connected to one side of the synchronous belt 24 for lifting and lowering. The prying head 26 is connected to the bottom of the prying rod 25. The prying rod 25 is slidably mounted in the guide sleeve 27. The guide sleeve 27 guides the prying rod 25 to prevent the prying rod 25 from deviating during the prying process, thereby improving the prying and filling effect. Preferably, in this embodiment, the prying head 26 is also provided with a position sensor to facilitate control of the lifting distance of the prying head 26.

[0059] Furthermore, in this embodiment, if Figure 6 As shown, the liquid metering injection device 3 comprises a juice reservoir 31, a pump 33, a sealed container 34, a metering valve 35, and a juice injection head assembly 36, which are connected in sequence. The juice injection head assembly 36 is used to quantitatively inject the liquid into the packaging material. The pump 33 pumps the liquid from the juice reservoir 31 into the sealed container 34, building up pressure within the sealed container 34. When the liquid needs to be injected, the metering valve 35 is opened, and the liquid in the sealed container 34 flows out under the pressure within the container. The liquid is then injected through the juice injection head assembly 36. After the metering valve 35 has metered the liquid, it closes, completing the quantitative injection of the liquid. By providing the sealed container 34, the liquid metering injection device 3 of this embodiment can reduce splashing of the liquid during injection, compared to existing plunger pumps that directly inject juice into the packaging bag, by adjusting the pressure within the sealed container 34. This allows for more accurate metering. The continuous operation of the pump 33 allows the entire system to operate continuously, simply by ensuring that there is liquid in the juice reservoir 31. Unlike plunger pumps, the system does not need to stop for refilling, resulting in higher efficiency.

[0060] Preferably, in this embodiment, the metering valve 35 is a solenoid valve that automatically switches on and off according to the set flow rate, resulting in a simple and reliable structure. Preferably, in this embodiment, a filter 32 is also provided between the juice pool 31 and the pump 33 to prevent residue in the juice pool 31 from clogging the pump 33 and the sealed container 34. A pressure relief valve 37 is also connected to the sealed container 34, the outlet of which is connected to a row of drain pools 38. The pressure relief valve 37 prevents the pump 33 from pumping excessive pressure into the sealed container 34, which could lead to pressure buildup, providing increased safety. A pressure gauge 341 is also provided on the sealed container 34, simplifying the structure and facilitating routine inspections.

[0061] Furthermore, in this embodiment, if Figure 7 As shown, the juice injection head assembly 36 includes a compression drive 363, a compression member 364, and a hose. One end of the hose is connected to the metering valve 35, and the other end is used to inject liquid into the packaging material. The compression drive 363 is connected to the compression member 364 to drive the compression member 364 to compress the hose (not shown in the figure). After the metering valve 35 is closed, the compression drive 363 (such as a cylinder, an electric push rod, etc.) drives the compression member 364 to compress the hose to prevent dripping and ensure more accurate juice injection. Preferably, in this embodiment, the juice injection head assembly 36 also includes a juice injection head 362. The juice injection head 362 has a center hole, and the hose 365 is inserted into the center hole for fixed installation. The juice injection head 362 also has an axial hole. The compression drive 363 drives the compression member 364 to move through the axial hole to compress the hose between the compression member 364 and the juice injection head 362, resulting in a compact structure and a reasonable layout.

[0062] Furthermore, in this embodiment, if Figure 15 As shown, in this embodiment, a packaging material holding device 6 is further provided between the circulating feeding device 1 and the packaging material conveying device 7. The packaging material holding device 6 includes a holding mounting plate 61 and two sets of spaced holding mechanisms 62. The holding mechanisms 62 are provided on the holding mounting plate 61. A bag opening assembly 63 is provided between one set of holding mechanisms 62 and the circulating feeding device 1 (specifically, the filling hopper assembly 12). A liftable juice injection mounting seat 64 is provided above the other set of holding mechanisms 62. The juice injection port of the liquid metering injection device 3 is provided on the juice injection mounting seat 64. When the packaging material conveying device 7 conveys the packaging bag to the filling hopper assembly 12 or the metering juice injection device 3, the packaging material holding device 6 can clamp and hold the packaging bag for sauerkraut filling or juice injection, preventing the sauerkraut filling or juice injection process from occupying the packaging material conveying device 7. The packaging material conveying device 7 can load new packaging bags and seal and convey filled packaging bags, thereby improving production continuity and increasing production efficiency.

[0063] Furthermore, in this embodiment, the packaging material conveying device 7 includes a conveying base 72 and three groups of conveying clamps 71 arranged at intervals, and the conveying clamps 71 are movably arranged on the conveying base 72. The two groups of holding mechanisms 62 correspond to the solid object poking device 2 and the liquid object metering injection device 3 respectively. In the initial state, the three groups of conveying jaws 71 on the conveying base 72 correspond to the packaging material access device 4, the solid object poking device 2 and the liquid object metering injection device 3 respectively. The first group of conveying jaws 71 clamps the packaging bag removed from the packaging material access device 4, and the three groups of conveying jaws 71 move forward; at this time, the three groups of conveying jaws 71 on the conveying base 72 correspond to the solid object poking device 2, the liquid object metering injection device 3 and the sealing device 5 respectively. The first group of holding mechanisms 62 clamps and holds the packaging bag on the first group of conveying jaws 71, the bag opening component 63 opens the bag, the solid object poking device 2 pokes the material, and at the same time, the three groups of conveying jaws 71 move back to their positions; the first group of conveying jaws 71 clamps the new packaging bag, and the second group of conveying jaws The clamps 71 clamp the packaging bag that has completed sauerkraut filling, and the three groups of conveying clamps 71 move forward again. The first group of holding mechanisms 62 clamp and hold the new packaging bag on the first group of conveying clamps 71, and the second group of holding mechanisms 62 clamp and hold the packaging bag that has completed sauerkraut filling. The bag opening component 63 opens the bag, the solid material poking device 2 pokes the material, and the liquid material metering injection device 3 injects the juice. At the same time, the three groups of conveying clamps 71 move backward and return to their positions; the first group of conveying clamps 71 clamps the new packaging bag, the second group of conveying clamps 71 clamps the packaging bag that has completed sauerkraut filling, and the third group of conveying clamps 71 clamps the packaging bag that has completed sauerkraut filling and juice injection. The three groups of conveying clamps 71 move forward again, and the sealing device 5 is removed and seals the packaging bag that has completed sauerkraut filling and juice injection on the third group of conveying clamps 71 to complete the filling and packaging. Through the cooperation of the packaging material holding device 6 and the packaging material conveying device 7, the packaging material conveying device 7 can return to its position to take out the bags while the sauerkraut is being filled and the juice is injected, thereby reducing the waiting time during loading and improving production continuity. Moreover, through the above-mentioned step-by-step conveying, continuous filling and packaging of sauerkraut can be achieved, with a higher degree of automation.

[0064] In this embodiment, Figure 17As shown, the bag opening assembly 63 includes a bag opening cylinder 631, a bag opening mounting cover 632, a front connecting rod 633, and a rear connecting rod 634. The top of the piston rod of the bag opening cylinder 631 is equipped with a Y-joint, which is connected to the rear connecting rod 634. The lower end of the front connecting rod 633 is provided with a front suction cup 635, and the lower end of the rear connecting rod 634 is provided with a rear suction cup 636. The front connecting rod 633 and the rear connecting rod 634 are fixed to the bag opening mounting cover 632 via a rotating shaft. When the piston rod of the bag opening cylinder 631 is retracted, the front connecting rod 633 and the rear connecting rod 634 are driven to open, and the front suction cup 635 and the rear suction cup 636 are driven to open in coordination, and the bag is opened. When the piston rod of the bag opening cylinder 631 is extended, the front connecting rod 633 and the rear connecting rod 634 are driven to close, and the front suction cup 635 and the rear suction cup 636 are driven to close, and the bag opening stops.

[0065] In this embodiment, Figure 7 As shown, the juice injection head 362 and the pressing drive member 363 are arranged on the juice injection mounting seat 64. The liftable juice injection mounting seat 64 drives the juice injection head 362 to extend into the packaging bag for filling, which can prevent the juice from splashing out and achieve a better filling effect.

[0066] Furthermore, in this embodiment, if Figure 16 As shown, the holding mechanism 62 also includes an opening and closing drive assembly 623, a holding jaw mounting plate 621, and a pair of holding jaws 622 disposed on the holding jaw mounting plate 621. The holding jaws 622 are hingedly connected to the jaw mounting plate 621, forming an angle between the two holding jaws 622. The holding jaws 622 are provided with a limiting link 6221, which is hingedly connected to the limiting link 6221 on the two holding jaws 622. The holding jaw opening and closing drive assembly 623 is used to drive the two holding jaws 622 to swing to adjust the angle between the two holding jaws 622. When the holding mechanism 62 clamps and holds the packaging bag, the two holding jaws 622 respectively clamp the two sides of the packaging bag. When the sauerkraut is filled or the juice is injected, the holding jaw opening and closing drive assembly 623 drives the two holding jaws 622 to open to straighten the packaging bag, preventing the sauerkraut or juice from spilling during subsequent transportation on the packaging material conveying device 7.

[0067] Furthermore, in this embodiment, if Figure 18 and Figure 19As shown, the packaging material conveying device 7 also includes a longitudinal conveying mechanism 73, a transverse adjustment mechanism 74, and a conveying jaw mounting plate 75. The longitudinal conveying mechanism 73 is arranged on the conveying base 72, the transverse adjustment mechanism 74 is longitudinally slidably arranged on the longitudinal conveying mechanism 73, the conveying jaw mounting plate 75 is transversely slidably arranged on the transverse adjustment mechanism 73, and the conveying jaw 71 is arranged on the conveying jaw mounting plate 75. The longitudinal conveying mechanism 73 drives the conveying jaw mounting plate 75 to move longitudinally for forward conveying, and the transverse adjustment mechanism 74 drives the conveying jaw mounting plate 75 to move transversely so that the conveying jaw 71, which has moved longitudinally into position, is laterally adjusted to align with the corresponding device; the three groups of conveying jaws 71 on the conveying jaw mounting plate 75 can move synchronously with the conveying jaw mounting plate 75, facilitating the correspondence with the packaging material storage and retrieval device 4, the solid material poke device 2, the liquid material metering and injection device 3, and the sealing device 5.

[0068] Furthermore, in this embodiment, the longitudinal conveying mechanism 73 includes a longitudinal guide rail 731 and a transmission slider 732 disposed on the longitudinal guide rail 731. The transverse adjustment mechanism 73 includes a transverse adjustment drive 741 (e.g., a cylinder, an electric push rod, etc.), a crossbar 743, and a slider connecting plate 742 disposed on the transmission slider 732. The crossbar 743 is disposed on the slider connecting plate 742. The crossbar 743 passes through the conveying jaw mounting plate 75 and can slide relative to the conveying jaw mounting plate 75. The transverse adjustment drive 741 is disposed on the slider connecting plate 742 and is connected to the conveying jaw mounting plate 75. The longitudinal conveying mechanism 73 adopts the form of a guide rail slider, which has a long travel distance and high movement accuracy. There are multiple crossbars 743, and the transverse adjustment mechanism 73 adjusts the position laterally by sliding the multiple crossbars 743, which makes the position adjustment smooth and highly stable.

[0069] Furthermore, in this embodiment, if Figure 8 and Figure 9 As shown, the packaging material storage and retrieval device 4 includes a bag retrieval mechanism 41, a bag loading mechanism 42, and a packaging storage and retrieval rack 43. A bag storage box 431 is provided on the packaging storage and retrieval rack 43. The bag retrieval mechanism 41 includes a suction cup assembly 411, which is located below the bag storage box 431 and can be raised and lowered relative to the packaging storage and retrieval rack 43. The bag loading mechanism 42 includes a bag loading jaw 421 that can rotate relative to the packaging storage and retrieval rack 43. The bag loading jaw 421 is used to clamp the packaging material from the suction cup assembly 411 and transfer it to the packaging material conveyor 7. The bag storage box 431 can store multiple packaging bags at a time. The suction cup assembly 411 picks up one packaging bag at a time, then descends after sucking the packaging bag. The bag loading jaw 421 then clamps the packaging bag from the suction cup assembly 411 and transfers it to the packaging material conveyor 7. This simple and reliable structure provides greater operational continuity.

[0070] In this embodiment, adjustable support posts 432 are provided at the bottom of each of the four corners of the package storage rack 43 to facilitate adjustment of the height and level of the bag storage box 431. Sliding rods 433 are provided on the package storage rack 43. The bag storage box 431 includes a rear sidewall 4313 and opposing first and second bag storage plates 4311, 4312. The first and second bag storage plates 4311, 4312 slide on the sliding rods 433 to adjust the width of the bag storage box 431. U-shaped grooves are provided on the rear sidewall 4313 to adjust the length of the bag storage box 431, providing strong adaptability.

[0071] In this embodiment, the bag loading mechanism 42 includes an upper bag rack 422, and an upper bag driving member 423 (such as a motor, etc.) arranged on the upper bag rack 422, an upper bag clamp 421, a power shaft 424 and a connecting plate 425. The upper bag rack 422 is arranged on one side of the packaging storage and retrieval rack 43, the upper bag driving member 423 is connected to the power shaft 424, one end of the connecting plate 425 is connected to the power shaft 424, and the other end is hinged to the upper bag clamp 423, the upper bag driving member 423 drives the power shaft 424 to rotate, and drives the upper bag clamp 423 to rotate back and forth through the connecting plate 425 to perform a clamping action, the structure is simple and reliable.

[0072] Furthermore, in this embodiment, if Figures 10 to 14 As shown, the sealing device 5 comprises a bag transfer mechanism 51 and vacuum boxes 52 located on either side of the bag transfer mechanism 51. The vacuum boxes 52 are equipped with openable and closable doors 521, and a heated sealing mechanism 53 is housed within the vacuum boxes 52. When the packaging material conveyor 7 delivers the sauerkraut-filled and juice-infused packaging bags to the sealing device 5, the bag transfer mechanism 51 removes the bags and transfers them to one of the vacuum boxes 52 for sealing. Because the bag sealing speed is slower than the bag discharge speed, the two vacuum boxes 52 are arranged to perform sealing in turns, preventing downtime, improving operational continuity, and increasing production efficiency.

[0073] In this embodiment, Figure 11 As shown, the bag transfer mechanism 51 includes a turntable 511, a lifting platform 512, a sliding seat 513, a bag transfer clamp mounting plate 514, and a bag transfer clamp 515. The lifting platform 512 is connected to a lifting drive and is mounted on the turntable 511 for height adjustment to improve adaptability. The sliding seat 513 is connected to a sliding drive and is slidably mounted on the lifting platform 512, thereby extending or retracting the sliding seat 513. The bag transfer clamp mounting plate 514 is mounted on the sliding seat 513, and the bag transfer clamp 515 is mounted on the bag transfer clamp mounting plate 514. During sealing, the sliding drive drives the bag transfer clamp 515 to extend. After the bag transfer clamp 515 receives the package bag, the sliding drive drives the bag transfer clamp 515 to retract. The turntable 511 drives the bag transfer clamp 515 to rotate 90 degrees. The sliding drive drives the bag transfer clamp 515 to extend again, and the package bag is transferred into the vacuum chamber 52 for sealing.

[0074] In this embodiment, Figure 12 As shown, the vacuum box 52 is also provided with a door opening assembly, which includes a connecting rod seat 522 provided on the box door 521, a connecting rod support seat 523 provided on the vacuum box 52, and a cover opening cylinder 525, as well as a power connecting rod 524 hinged between the connecting rod seat 522 and the connecting rod support seat 523. The cover opening cylinder 525 is provided on the vacuum box 52 and connected to the power connecting rod 524. By driving the power connecting rod 524 to rotate, the cover opening and closing actions of the box door 521 are realized. A buffer pad 526 is provided on the box door 521 to prevent the power connecting rod 524 from colliding and wearing with the box door 521.

[0075] In this embodiment, Figure 13 and Figure 14 As shown, the heating and sealing mechanism 53 includes a sealing cylinder 535, a heating block 531, sealing jaws 532, a sealing mounting plate 533, and a wedge block 534, all located within the vacuum chamber 52. The heating block 531 is located above the sealing mounting plate 533, with wedge blocks 534 and sealing jaws 532 located at each end. The sealing cylinder 535 is fixed to the exterior of the vacuum chamber 52, and its piston rod extends inward through an axial hole in the vacuum chamber 52. A sealing ring is installed at the axial hole to prevent air leakage. During sealing, after the sealing jaws 532 grip the bag on the bag transfer jaws 515, the chamber door 521 is closed and vacuum is applied. The piston rod of the sealing cylinder 535 then moves, causing the wedge blocks 534 at each end of the sealing mounting plate 533 to push the two sealing jaws 532 toward each other, thereby straightening the bag and sealing it.

[0076] In this embodiment, a sealing ring is further provided between the box door 521 and the vacuum box 52 , and a sealing effect can be achieved after the box door 521 and the vacuum box 52 are tightly closed.

[0077] Example 2:

[0078] Another embodiment of the food filling and packaging system of the present invention (not shown in the figure) is provided. The structure of the food filling and packaging system of this embodiment is basically the same as that of the first embodiment, with the following differences: In this embodiment, the packaging material holding device 6 includes a holding mounting plate 61 and a holding mechanism 62 provided on the holding mounting plate 61. A bag opening assembly 63 is provided above the holding mechanism 62. The filling hopper assembly 12 is provided with an interface. The juice injection port of the liquid metering injection device 3 is connected to the interface of the filling hopper assembly 12. The packaging material conveying device 7 includes a conveying base 72 and two sets of spaced-apart conveying jaws 71. The conveying jaws 71 are movably provided on the conveying base 72. In this embodiment, by connecting the juice injection port of the liquid metering injection device 3 with the filling hopper assembly 12, the sauerkraut filling and juice injection are combined into one workstation, and the number of conveying jaws 71 is reduced accordingly, making the layout more compact.

[0079] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above with a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with the art can use the above-disclosed methods and technical contents to make many possible changes and modifications to the technical solution of the present invention, or modify it into an equivalent embodiment with equivalent changes, without departing from the spirit and technical solution of the present invention. Therefore, any simple modification, equivalent replacement, equivalent change and modification of the above embodiments made according to the technical essence of the present invention, which does not depart from the content of the technical solution of the present invention, still falls within the scope of protection of the technical solution of the present invention.

Claims

1. A food filling and packaging system, characterized by: The invention comprises a circulating feeding device (1), a packaging material conveying device (7) located below the circulating feeding device (1), and a packaging material storage and retrieval device (4), a solid material poking device (2), a liquid material metering injection device (3) and a sealing device (5) arranged in sequence along the conveying direction of the packaging material conveying device (7), wherein the circulating feeding device (1) is used for circulating solid material, the solid material poking device (2) is used for filling the solid material on the circulating feeding device (1) into the packaging material, the liquid material metering injection device (3) is used for quantitatively injecting the liquid into the packaging material, the packaging material storage and retrieval device (4) is used for storing and taking out the packaging material, the sealing device (5) is used for sealing the packaging material, and the packaging material conveying device (7) is used for conveying the packaging material.

2. The food filling and packaging system according to claim 1, characterized in that: The liquid metering injection device (3) comprises a juice pool (31), a pump (33), a sealed container (34), a metering valve (35) and a juice injection head assembly (36) which are connected in sequence. The juice injection head assembly (36) is used to cooperate with the packaging material to inject the liquid.

3. The food filling and packaging system according to claim 2, characterized in that: The juice injection head assembly (36) includes a compression driving member (363), a compression member (364) and a hose. One end of the hose is connected to the metering valve (35), and the other end is used to inject liquid into the packaging material. The compression driving member (363) is connected to the compression member (364) to drive the compression member (364) to compress the hose.

4. The food filling and packaging system according to claim 1, characterized in that: The circulating feeding device (1) is provided with a feeding port (11), the bottom of the feeding port (11) is connected to a feeding hopper assembly (12), and the solid matter poke device (2) is located above the feeding port (11); A packaging material holding device (6) is further provided between the circulating feeding device (1) and the packaging material conveying device (7). The packaging material holding device (6) comprises a holding mounting plate (61) and a holding mechanism (62) provided on the holding mounting plate (61). A bag opening assembly (63) is provided between the holding mechanism (62) and the filling hopper assembly (12). The filling hopper assembly (12) is provided with an interface, and the juice injection port of the liquid metering injection device (3) is connected to the interface of the filling hopper assembly (12).

5. The food filling and packaging system according to claim 1, characterized in that: A packaging material holding device (6) is further provided between the circulating feeding device (1) and the packaging material conveying device (7). The packaging material holding device (6) comprises a holding mounting plate (61) and two groups of holding mechanisms (62) arranged at intervals. The holding mechanisms (62) are provided on the holding mounting plate (61). A bag opening assembly (63) is provided between one group of the holding mechanisms (62) and the circulating feeding device (1). A liftable juice injection mounting seat (64) is provided above the other group of the holding mechanisms (62). The juice injection port of the liquid metering injection device (3) is provided on the juice injection mounting seat (64).

6. The food filling and packaging system according to claim 5, characterized in that: The holding mechanism (62) includes an opening and closing drive assembly (623), a holding jaw mounting plate (621) and a pair of holding jaws (622) arranged on the holding jaw mounting plate (621); the holding jaws (622) are hinged to the jaw mounting plate (621); an angle is formed between the two holding jaws (622); a limiting link (6221) is provided on the holding jaws (622); the limiting links (6221) on the two holding jaws (622) are hinged; the holding jaw opening and closing drive assembly (623) is used to drive the two holding jaws (622) to swing so as to adjust the angle between the two holding jaws (622).

7. The food filling and packaging system according to any one of claims 1 to 6, characterized in that: The packaging material conveying device (7) comprises a conveying base (72) and a plurality of groups of conveying clamps (71) arranged at intervals, and the conveying clamps (71) are movably arranged on the conveying base (72).

8. The food filling and packaging system according to claim 7, characterized in that: The packaging material conveying device (7) further comprises a longitudinal conveying mechanism (73), a transverse adjustment mechanism (74) and a conveying clamp mounting plate (75); the longitudinal conveying mechanism (73) is arranged on the conveying base (72); the transverse adjustment mechanism (74) is arranged on the longitudinal conveying mechanism (73) in a longitudinal sliding manner; the conveying clamp mounting plate (75) is arranged on the transverse adjustment mechanism (74) in a transverse sliding manner; and the conveying clamp (71) is arranged on the conveying clamp mounting plate (75).

9. The food filling and packaging system according to any one of claims 1 to 6, characterized in that: The packaging material storage and retrieval device (4) comprises a bag taking mechanism (41), a bag loading mechanism (42) and a packaging storage and retrieval rack (43); a bag storage box (431) is provided on the packaging storage and retrieval rack (43); the bag taking mechanism (41) comprises a suction cup assembly (411); the suction cup assembly (411) is located below the bag storage box (431) and can be raised and lowered relative to the packaging storage and retrieval rack (43); the bag loading mechanism (42) comprises a bag loading claw (421) that can rotate relative to the packaging storage and retrieval rack (43); the bag loading claw (421) is used to clamp the packaging material of the suction cup assembly (411) onto the packaging material conveying device (7).

10. The food filling and packaging system according to any one of claims 1 to 6, characterized in that: The sealing device (5) comprises a bag transfer mechanism (51) and vacuum boxes (52) arranged on both sides of the bag transfer mechanism (51); the vacuum box (52) is provided with an openable and closable box door (521); and a heating sealing mechanism (53) is provided inside the vacuum box (52).

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