A food packaging apparatus and method

Abstract

The application relates to the field of food packaging technology, in particular to a food packaging device and method, which comprises a base, a work station switching assembly, two bag supplying assemblies and a bag taking and filling assembly; the bag supplying assembly comprises a vertical storage box, a bearing plate, a first screw rod, a first motor and a connecting block; during work, the first motor drives the first screw rod to rotate, the bearing plate is driven by the connecting block to ascend by a thickness of a packaging bag, and the bearing plate is intermittently ascended by a thickness of a packaging bag each time; when the packaging bags in one bag supplying assembly are insufficient, the work station switching assembly switches another bag supplying assembly to a bag taking work station, so that continuous bag supplying is realized; when the uppermost packaging bag is taken away, the adjacent packaging bag located below the uppermost packaging bag tends to descend under the action of gravity, and cannot ascend with the uppermost packaging bag under the constraint of the friction force of the inner wall of the vertical storage box on the side of the adjacent packaging bag, so that the adjacent packaging bag is kept in the vertical storage box, and the problem that the adjacent packaging bag is taken out together with the uppermost packaging bag during bag taking is solved.

Description

Technical Field

[0001] This invention relates to the field of food packaging technology, and in particular to a food packaging apparatus and method. Background Technology

[0002] After the food processing steps are completed, the finished product needs to be sealed in packaging bags.

[0003] The single-bag picking equipment commonly used in the industry is equipped with a bag storage tank and a side push mechanism. The packaging bags are stacked vertically in the horizontal direction in the tank. The push plate continuously presses from one end, pushing the entire row of bags to the bag picking opening at the other end. Then, the suction nozzle or claw is used to absorb and pull out the last bag from the outside, realizing the feeding of bags one by one.

[0004] However, when packaging bags are stacked closely together, strong adhesion can easily occur between the bags. This interlayer adhesion causes adjacent bags to stick together tightly, and when the suction nozzle picks up the outermost bag and pulls it outward, the second bag that is stuck to it is often pulled out as well. Summary of the Invention

[0005] The purpose of this invention is to provide a food packaging device and method that aims to solve the problem of adjacent packaging bags being pulled out together during the bag removal process.

[0006] To achieve the above objectives, the present invention provides a food packaging device, including a base, a station switching assembly, two bag feeding assemblies, and a bag picking and filling assembly; The workstation switching component is located on the top of the base; the two bag supply components are located on the workstation switching component, and the workstation switching component is used to interchange the positions of the two bag supply components; the bag taking and filling component is located on the top of the base, and is used to take out the packaging bag from the bag supply component, fill it with food, and finally seal and convey it away. The bag supply assembly includes a vertical storage box, a support plate, a first lead screw, a first motor, and a connecting block; The vertical storage box is disposed on top of the workstation switching assembly; the support plate is slidably disposed inside the vertical storage box; the first lead screw is rotatably disposed on the side of the vertical storage box; the first motor is fixedly disposed on the side of the vertical storage box, and the output end of the first motor is fixedly connected to the first lead screw; the connecting block is fixedly disposed on the side of the support plate and is threadedly connected to the first lead screw.

[0007] The workstation switching component includes a mounting base, a turntable, and a second motor. The mounting base is fixedly installed on the top of the base; the turntable is rotatably installed on the top of the mounting base and is fixedly connected to the two vertical storage boxes; the second motor is fixedly installed inside the mounting base, and the output end of the second motor is fixedly connected to the turntable.

[0008] The bag-taking and filling assembly includes a bag-taking mechanism, a support, an opening mechanism, a filling device, and two heat-sealing mechanisms. The bag-retrieving mechanism is located on the top of the base and is used to retrieve the packaging bag from the vertical storage box; the bracket is fixedly located on the top of the base; the opening mechanism is located on the bracket and is used to cooperate with the bag-retrieving mechanism to open the bag opening; the filling device is fixedly located on the bracket and is used to quantitatively fill the packaging bag with food; the two heat-sealing mechanisms are located on the bracket and are used to seal the bag opening.

[0009] The bag-retrieving mechanism includes a mounting frame, an I-beam frame, a second lead screw, a third motor, two first guide rods, an L-shaped frame, a first servo electric cylinder, a swing rod, a first vacuum suction cup, and a second servo electric cylinder. The mounting bracket is fixedly mounted on the top of the base; the I-beam is slidably mounted on the mounting bracket; the second lead screw is rotatably mounted on the mounting bracket and threadedly connected to the I-beam; the third motor is fixedly mounted on the top of the mounting bracket, and the output end of the third motor is fixedly connected to the second lead screw; the two first guide rods are slidably mounted on the I-beam; the L-shaped frame is fixedly mounted on one end of the two first guide rods; the first servo electric cylinder is fixedly mounted on the I-beam, and the output end of the first servo electric cylinder is fixedly connected to the L-shaped frame; the bottom end of the swing rod is rotatably connected to the L-shaped frame, and the top end of the swing rod is fixedly mounted with the first vacuum suction cup; the cylinder body of the second servo electric cylinder is rotatably connected to the L-shaped frame, and the output end of the second servo electric cylinder is rotatably connected to the swing rod.

[0010] The opening mechanism includes a side frame, a third servo electric cylinder, and a second vacuum suction cup; The side frame is fixedly mounted on one side of the bracket, and the third servo electric cylinder is fixedly mounted on the side frame; the second vacuum suction cup is fixedly mounted on the output end of the third servo electric cylinder.

[0011] The heat sealing mechanism includes a support plate, two second guide rods, a heat sealing block, and a fourth servo electric cylinder. The support plate is fixedly mounted on one side of the bracket; the two second guide rods are slidably mounted on the support plate; the heat sealing block is fixedly mounted on one end of the two second guide rods; the fourth servo electric cylinder is fixedly mounted on the support plate, and the output end of the fourth servo electric cylinder is fixedly connected to the heat sealing block.

[0012] The bag-taking and filling assembly also includes a conveyor belt; The conveyor belt is fixedly mounted on the top of the base and located below the filling equipment.

[0013] The bag-taking and filling assembly also includes a fall prevention mechanism; The anti-fall mechanism is mounted on the bracket and is used to support the packaging bag when food is being filled into the packaging bag.

[0014] The fall protection mechanism includes a U-shaped frame, a third lead screw, a fourth motor, and an L-shaped plate. The U-shaped frame is fixedly mounted on one side of the support; one end of the third lead screw is rotatably connected to the support, and the other end is rotatably connected to the U-shaped frame; the fourth motor is fixedly mounted on the U-shaped frame, and the output end of the fourth motor is fixedly connected to the third lead screw; the L-shaped plate is slidably mounted on the support and threadedly connected to the third lead screw, and passes through the support.

[0015] The present invention also provides a food packaging method, comprising the following steps: Stack the packaging bags on the support plate inside the vertical storage box of the two bag supply components; The workstation switching component switches one of the bag feeding components to the bag picking station; The bag-taking and filling unit takes out a packaging bag from the vertical storage box of the bag-feeding unit located at the bag-taking station; After the packaging bag is removed, the first motor of the bag feeding assembly drives the first lead screw to rotate, which in turn drives the bearing plate to rise to the height of one packaging bag thickness through the connecting block, so that the next packaging bag can be raised to the bag picking height. The bag-filling assembly fills the removed packaging bag with food, seals it, and then transports it away.

[0016] This invention discloses a food packaging device and method. A base serves as the mounting foundation. A workstation switching component is disposed on top of the base. Two bag supply components are disposed on the workstation switching component, which is used to interchange the positions of the two bag supply components. A bag-taking and filling component is disposed on top of the base and is used to remove packaging bags from the bag supply components, fill them with food, and finally seal and convey them away. A vertical storage box is disposed on top of the workstation switching component. Packaging bags are stacked horizontally layer by layer in the vertical storage box. A support plate is slidably disposed in the vertical storage box and supports the packaging bags. A first lead screw is rotatably disposed on the side of the vertical storage box. A first motor is fixedly disposed on the side of the vertical storage box, and its output end is fixedly connected to the first lead screw. A connecting block is fixedly disposed on the side of the support plate and threadedly connected to the first lead screw. During operation, the first motor drives the first lead screw to rotate, which, via the connecting block, raises the support plate by the thickness of a packaging bag, bringing the top layer of packaging bag to the bag-retrieving height. The raising is intermittent, each time increasing by the thickness of a packaging bag. When one bag-supplying assembly is insufficient, the station switching assembly switches another bag-supplying assembly to the bag-retrieval station, achieving continuous bag supply. Then, packaging bags are replenished to the empty bag-supplying assemblies. When the top layer of packaging bag is removed, the adjacent packaging bags below it tend to descend due to their own gravity. Constrained by the frictional force of the inner wall of the vertical storage box, they cannot rise with the top layer, thus remaining within the vertical storage box. This solves the problem of adjacent packaging bags being carried out during bag retrieval. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0018] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present invention.

[0019] Figure 2 yes Figure 1 A magnified view of detail A.

[0020] Figure 3 This is a front view of the first embodiment of the present invention.

[0021] Figure 4 This is a structural schematic diagram of the first embodiment of the present invention from another angle.

[0022] Figure 5 yes Figure 4 A magnified view of detail B.

[0023] Figure 6 This is a right view of the first embodiment of the present invention.

[0024] Figure 7 This is a flowchart illustrating the second embodiment of the present invention.

[0025] 1-Base, 2-Station switching assembly, 3-Bag supply assembly, 4-Bag picking and filling assembly, 201-Mounting base, 202-Turntable, 203-Second motor, 301-Vertical storage box, 302-Bearing plate, 303-First lead screw, 304-First motor, 305-Connecting block, 401-Bag picking mechanism, 402-Bracket, 403-Opening mechanism, 404-Filling equipment, 405-Heat sealing mechanism, 406-Conveyor belt, 407-Fall protection mechanism, 40101-Mounting frame, 40102-I-beam frame, 40103-Second lead screw, 40104 - Third motor, 40105- First guide rod, 40106- L-shaped frame, 40107- First servo electric cylinder, 40108- Swing rod, 40109- First vacuum suction cup, 40110- Second servo electric cylinder, 40301- Side frame, 40302- Third servo electric cylinder, 40303- Second vacuum suction cup, 40501- Support plate, 40502- Second guide rod, 40503- Heat sealing block, 40504- Fourth servo electric cylinder, 40701- U-shaped frame, 40702- Third lead screw, 40703- Fourth motor, 40704- L-shaped plate. Detailed Implementation

[0026] The first embodiment of this application is as follows: Please see Figures 1-6 ,in, Figure 1 This is a schematic diagram of the structure of the first embodiment of the present invention. Figure 2 yes Figure 1 A magnified view of detail A. Figure 3 This is a front view of the first embodiment of the present invention. Figure 4 This is a structural schematic diagram of the first embodiment of the present invention from another angle. Figure 5 yes Figure 4 A magnified view of detail B. Figure 6 This is a right view of the first embodiment of the present invention.

[0027] This invention provides a food packaging device: comprising a base 1, a workstation switching assembly 2, two bag supply assemblies 3, and a bag picking and filling assembly 4; the bag supply assembly 3 includes a vertical storage box 301, a support plate 302, a first lead screw 303, a first motor 304, and a connecting block 305; the workstation switching assembly 2 includes a mounting base 201, a turntable 202, and a second motor 203; the bag picking and filling assembly 4 includes a bag picking mechanism 401, a bracket 402, an opening mechanism 403, a filling device 404, and two heat sealing mechanisms 405; the bag picking mechanism 401 includes a mounting frame 40101, an I-beam frame 40102, a second lead screw 40103, a third motor 40104, two first guide rods 40105, an L-shaped frame 40106, and a first servo electric cylinder. 40107, swing rod 40108, first vacuum suction cup 40109, and second servo electric cylinder 40110; the opening mechanism 403 includes a side frame 40301, a third servo electric cylinder 40302, and a second vacuum suction cup 40303; the heat sealing mechanism 405 includes a support plate 40501, two second guide rods 40502, a heat sealing block 40503, and a fourth servo electric cylinder 40504; the bag picking and filling assembly 4 also includes a conveyor belt 406; the bag picking and filling assembly 4 also includes a fall prevention mechanism 407; the fall prevention mechanism 407 includes a U-shaped frame 40701, a third lead screw 40702, a fourth motor 40703, and an L-shaped plate 40704; the aforementioned solution solves the problem of adjacent packaging bags being pulled out together during the bag picking process.

[0028] Furthermore, the workstation switching component 2 is disposed on the top of the base 1; two bag supply components 3 are disposed on the workstation switching component 2, and the workstation switching component 2 is used to interchange the positions of the two bag supply components 3; the bag taking and filling component 4 is disposed on the top of the base 1, and is used to take out the packaging bag from the bag supply component 3, fill it with food, and finally seal and convey it away; the vertical storage box 301 is disposed on the top of the workstation switching component 2; the support plate 302 is slidably disposed in the vertical storage box 301; the first lead screw 303 is rotatably disposed on the side of the vertical storage box 301; the first motor 304 is fixedly disposed on the side of the vertical storage box 301, and the output end of the first motor 304 is fixedly connected to the first lead screw 303; the connecting block 305 is fixedly disposed on the side of the support plate 302 and is threadedly connected to the first lead screw 303.

[0029] In this embodiment, the base 1 serves as the installation foundation, the workstation switching component 2 is disposed on the top of the base 1, and two bag supply components 3 are disposed on the workstation switching component 2. The workstation switching component 2 is used to interchange the positions of the two bag supply components 3. The bag taking and filling component 4 is disposed on the top of the base 1 and is used to take out the packaging bag from the bag supply component 3, fill it with food, and finally seal and convey it away. The vertical storage box 301 is disposed on the top of the workstation switching component 2. The packaging bags are stacked horizontally in the vertical storage box 301. The support plate 302 is slidably disposed in the vertical storage box 301 and supports the packaging bags. The first lead screw 303 is rotatably disposed on the side of the vertical storage box 301. The first motor 304 is fixedly disposed on the side of the vertical storage box 301 and its output end is fixedly connected to the first lead screw 303. The connecting block 305 is fixedly disposed on the side of the support plate 302 and threadedly connected to the first lead screw 303. During operation, the first motor 304 drives the first lead screw 303 to rotate, which in turn raises the bearing plate 302 by the thickness of a packaging bag via the connecting block 305, raising the top layer of packaging bag to the bag-retrieving height. The raising is intermittent, each time increasing by the thickness of a packaging bag. When one bag-supplying component 3 is insufficient, the station switching component 2 switches another bag-supplying component 3 to the bag-retrieving station, achieving continuous bag supply. Then, packaging bags are replenished to the remaining bag-supplying components 3. When the top layer of packaging bag is removed, the adjacent packaging bags below it tend to descend due to their own gravity. Constrained by the frictional force on their sides from the inner wall of the vertical storage box 301, they cannot rise with the top layer of packaging bag, thus remaining within the vertical storage box 301. This solves the problem of adjacent packaging bags being carried out during bag retrieval.

[0030] Furthermore, the mounting base 201 is fixedly disposed on the top of the base 1; the turntable 202 is rotatably disposed on the top of the mounting base 201 and is fixedly connected to the two vertical storage boxes 301; the second motor 203 is fixedly disposed inside the mounting base 201, and the output end of the second motor 203 is fixedly connected to the turntable 202.

[0031] In this embodiment, when it is necessary to switch the bag supply position, the second motor 203 drives the turntable 202 to rotate, causing the two vertical storage boxes 301 to rotate around the axis of the turntable 202, thereby realizing the interchange of the positions of the two bag supply components 3, so that the fully loaded vertical storage box 301 enters the bag retrieval station, and packaging bags are added to the empty vertical storage box 301 to ensure uninterrupted bag supply.

[0032] Furthermore, the bag-removing mechanism 401 is disposed on the top of the base 1 for removing the packaging bag from the vertical storage box 301; the bracket 402 is fixedly disposed on the top of the base 1; the opening mechanism 403 is disposed on the bracket 402 for cooperating with the bag-removing mechanism 401 to open the packaging bag opening; the filling device 404 is fixedly disposed on the bracket 402 for quantitatively filling food into the packaging bag; and the two heat-sealing mechanisms 405 are disposed on the bracket 402 for sealing the packaging bag opening.

[0033] In this embodiment, the bag-retrieving mechanism 401 is disposed on the top of the base 1 and is used to retrieve the packaging bag from the vertical storage box 301; the support 402 is fixedly disposed on the top of the base 1 and is used to support the various functional components; the opening mechanism 403 is disposed on the support 402 and is used to cooperate with the bag-retrieving mechanism 401 to open the packaging bag opening; the filling device 404 is fixedly disposed on the support 402 and is used to quantitatively fill the packaging bag with food; the two heat-sealing mechanisms 405 are disposed on the support 402 and are used to seal the packaging bag opening. Through the coordinated action of the above-mentioned parts, the entire process of bag retrieval, opening, filling and sealing is automated.

[0034] Furthermore, the mounting bracket 40101 is fixedly mounted on the top of the base 1; the I-beam frame 40102 is slidably mounted on the mounting bracket 40101; the second lead screw 40103 is rotatably mounted on the mounting bracket 40101 and threadedly connected to the I-beam frame 40102; the third motor 40104 is fixedly mounted on the top of the mounting bracket 40101, and the output end of the third motor 40104 is fixedly connected to the second lead screw 40103; the two first guide rods 40105 are slidably mounted on the I-beam frame 40102; and the L-shaped frame 40106 is fixedly mounted on... One end of each of the two first guide rods 40105; the first servo electric cylinder 40107 is fixedly mounted on the I-beam frame 40102, and the output end of the first servo electric cylinder 40107 is fixedly connected to the L-shaped frame 40106; the bottom end of the swing rod 40108 is rotatably connected to the L-shaped frame 40106, and the top end of the swing rod 40108 is fixedly mounted with the first vacuum suction cup 40109; the cylinder body of the second servo electric cylinder 40110 is rotatably connected to the L-shaped frame 40106, and the output end of the second servo electric cylinder 40110 is rotatably connected to the swing rod 40108.

[0035] In this embodiment, when retrieving the bag, the swing rod 40108 is initially in a vertical state; the second servo cylinder 40110 extends, pushing the swing rod 40108 to rotate 90 degrees relative to the L-shaped frame 40106, changing from a vertical to a horizontal state, so that the first vacuum suction cup 40109 rotates into the vertical storage box 301 and contacts the bag opening of the uppermost packaging bag for adsorption; subsequently, the second servo cylinder 40110 reverses its action, pulling the swing rod 40108 to rotate 90 degrees in the opposite direction, returning it to its horizontal state. In a vertical position, the first vacuum suction cup 40109 picks up the packaging bag and turns it into a vertical position with the bag opening facing upwards. Then, the first servo electric cylinder 40107 retracts, and the packaging bag is moved horizontally towards the I-beam frame 40102 via the L-shaped frame 40106 and the first guide rod 40105. At the same time, the third motor 40104 drives the second lead screw 40103 to rotate, causing the I-beam frame 40102 to rise along the mounting frame 40101, raising the upright packaging bag to the subsequent opening position, ready for the bag opening operation.

[0036] Furthermore, the side frame 40301 is fixedly mounted on one side of the bracket 402, and the third servo electric cylinder 40302 is fixedly mounted on the side frame 40301; the second vacuum suction cup 40303 is fixedly mounted on the output end of the third servo electric cylinder 40302.

[0037] In this embodiment, after the packaging bag is lifted to a predetermined position by the bag-grabbing mechanism 401, the third servo cylinder 40302 extends, pushing the second vacuum suction cup 40303 to move to the other side of the packaging bag, adsorbing the area opposite the bag opening. Then, the third servo cylinder 40302 retracts, driving the second vacuum suction cup 40303 to pull outwards, cooperating with the first vacuum suction cup 40109 that is holding the adsorption, to tear open the packaging bag opening, forming an opening. At this time, the filling device 404 fills the packaging bag with a measured amount of food. The filling device 404 is prior art and will not be described in detail in this application.

[0038] Furthermore, the support plate 40501 is fixedly disposed on one side of the bracket 402; the two second guide rods 40502 are slidably disposed on the support plate 40501; the heat sealing block 40503 is fixedly disposed on one end of the two second guide rods 40502; the fourth servo electric cylinder 40504 is fixedly disposed on the support plate 40501, and the output end of the fourth servo electric cylinder 40504 is fixedly connected to the heat sealing block 40503.

[0039] In this embodiment, after filling is completed, the second vacuum suction cup 40303 closes towards the first vacuum suction cup 40109, closing the bag opening; then the two fourth servo electric cylinders 40504 extend synchronously, pushing the two heat sealing blocks 40503 to move relative to each other along the second guide rod 40502, pressing the bag opening area from both sides and performing heat sealing. After sealing is completed, the fourth servo electric cylinders 40504 drive the heat sealing blocks 40503 to retract.

[0040] Furthermore, the conveyor belt 406 is fixedly mounted on the top of the base 1 and located below the filling device 404.

[0041] In this embodiment, after the packaging bag is filled and sealed, the first vacuum suction cup 40109 and the second vacuum suction cup 40303 are released, and the packaging bag falls onto the conveyor belt 406 under the action of gravity, and is transported by the conveyor belt 406 to the next process or the finished product collection point.

[0042] Furthermore, the anti-fall mechanism 407 is mounted on the bracket 402 to support the packaging bag when food is being filled into it.

[0043] In this embodiment, before the bag opening is opened and filling begins, the anti-fall mechanism 407 moves to the bottom of the packaging bag for support, preventing the packaging bag from slipping or shifting due to material impact or increased weight during the filling process, thus ensuring the stability and quantitative accuracy of the filling.

[0044] Furthermore, the U-shaped frame 40701 is fixedly mounted on one side of the support 402; one end of the third lead screw 40702 is rotatably connected to the support 402, and the other end is rotatably connected to the U-shaped frame 40701; the fourth motor 40703 is fixedly mounted on the U-shaped frame 40701, and the output end of the fourth motor 40703 is fixedly connected to the third lead screw 40702; the L-shaped plate 40704 is slidably mounted on the support 402, and is threadedly connected to the third lead screw 40702, and passes through the support 402.

[0045] In this embodiment, when the packaging bag is opened and waiting to be filled, the fourth motor 40703 drives the third lead screw 40702 to rotate, and through threaded transmission, the L-shaped plate 40704 extends from one side of the bracket 402 to support the packaging bag. After filling and sealing are completed, the fourth motor 40703 rotates in the opposite direction, causing the L-shaped plate 40704 to retract, and the packaging bag loses its support and falls onto the conveyor belt 406, completing the unloading.

[0046] The food packaging device described in this embodiment has the following workflow: During operation, packaging bags are stacked horizontally in two vertical storage boxes 301. The first motor 304 drives the first lead screw 303 to rotate, which in turn drives the bearing plate 302 to rise intermittently via the connecting block 305. Each time, the plate rises by the thickness of one packaging bag, so that the top layer of packaging bags is raised to the bag-removal height. Initially, the swing rod 40108 is in a vertical position. The second servo cylinder 40110 extends, pushing the swing rod 40108 to rotate 90 degrees relative to the L-shaped frame 40106, changing it from a vertical to a horizontal position. This causes the first vacuum suction cup 40109 to rotate into the vertical storage box 301 and contact the opening of the top layer of packaging bag for adsorption. Subsequently, the second servo cylinder 40110 reverses its action, pulling the swing rod 40108 to rotate 90 degrees in the opposite direction, returning it to a vertical position. The first vacuum suction cup 40109 then lifts the packaging bag and turns it into a vertical position with the opening facing upwards. Next, the first servo cylinder 40107 retracts, through... The L-shaped frame 40106 and the first guide rod 40105 cause the entire packaging bag to move horizontally towards the I-beam frame 40102. At the same time, the third motor 40104 drives the second lead screw 40103 to rotate, causing the I-beam frame 40102 to rise along the mounting frame 40101, lifting the upright packaging bag to the opening position. The third servo cylinder 40302 extends, pushing the second vacuum suction cup 40303 to move to the other side of the packaging bag for adsorption. Then, the third servo cylinder 40302 retracts, causing the second vacuum suction cup 40303 to pull outward, cooperating with the first vacuum suction cup 40109 that is holding the adsorption, to tear open the opening of the packaging bag. After the bag opening is opened, the fourth motor 40703 drives the third lead screw 40702 to rotate, and through the threaded transmission, the L-shaped plate 40704 extends from one side of the bracket 402 to the bottom of the packaging bag to support it and prevent the packaging bag from falling during filling; the filling equipment 404 fills the packaging bag with food in a measured amount. After filling, the second vacuum suction cup 40303 closes towards the first vacuum suction cup 40109 to close the bag opening. The two fourth servo cylinders 40504 extend synchronously, pushing the two heat sealing blocks 40503 to move relative to each other along the second guide rod 40502, pressing the bag opening area from both sides and performing heat sealing. After sealing, the fourth servo cylinder 40504 drives the heat sealing blocks 40503 to retract, and the fourth motor 40703 rotates in the opposite direction to retract the L-shaped plate 40704. The first vacuum suction cup 40109 and the second vacuum suction cup 40303 are both released, and the packaging bag falls onto the conveyor belt 406 under gravity and is transported to the next process by the conveyor belt 406.When there are not enough packaging bags in the bag supply component 3, the second motor 203 drives the turntable 202 to rotate, which in turn drives the two vertical storage boxes 301 to rotate around the axis of the turntable 202, thereby realizing the interchange of the positions of the two bag supply components 3. This allows the fully loaded vertical storage box 301 to enter the bag retrieval station and replenishes the empty vertical storage box 301 with packaging bags, ensuring uninterrupted bag supply.

[0047] The second embodiment of this application is as follows: Based on the first embodiment, please refer to Figure 7 ,in, Figure 7 This is a flowchart illustrating the second embodiment of the present invention.

[0048] The present invention provides a food packaging method, comprising the following steps: S1: Place the packaging bags on the support plate 302 inside the vertical storage box 301 of the two bag supply components 3; S2: The station switching component 2 switches one of the bag supply components 3 to the bag picking station; S3: The bag-taking and filling assembly 4 takes out a packaging bag from the vertical storage box 301 of the bag-feeding assembly 3 located at the bag-taking station; S4: After the packaging bag is removed, the first motor 304 of the bag supply assembly 3 drives the first lead screw 303 to rotate, and through the connecting block 305, the bearing plate 302 is raised to the height of one packaging bag thickness, so that the next packaging bag is raised to the bag removal height; S5: The bag-taking and filling component 4 fills the removed packaging bag with food, seals it, and finally transports it away.

[0049] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A food packaging device, characterized in that, Includes a base, a station switching assembly, two bag feeding assemblies, and a bag picking and filling assembly; The workstation switching component is located on the top of the base; the two bag supply components are located on the workstation switching component, and the workstation switching component is used to interchange the positions of the two bag supply components; the bag taking and filling component is located on the top of the base, and is used to take out the packaging bag from the bag supply component, fill it with food, and finally seal and convey it away. The bag supply assembly includes a vertical storage box, a support plate, a first lead screw, a first motor, and a connecting block; The vertical storage box is disposed on top of the workstation switching assembly; the support plate is slidably disposed inside the vertical storage box; the first lead screw is rotatably disposed on the side of the vertical storage box; The first motor is fixedly mounted on the side of the vertical storage box, and the output end of the first motor is fixedly connected to the first lead screw; the connecting block is fixedly mounted on the side of the bearing plate and is threadedly connected to the first lead screw.

2. The food packaging apparatus as described in claim 1, characterized in that, The workstation switching component includes a mounting base, a turntable, and a second motor; The mounting base is fixedly installed on the top of the base; the turntable is rotatably installed on the top of the mounting base and is fixedly connected to the two vertical storage boxes; the second motor is fixedly installed inside the mounting base, and the output end of the second motor is fixedly connected to the turntable.

3. The food packaging apparatus as described in claim 2, characterized in that, The bag-taking and filling assembly includes a bag-taking mechanism, a support, an opening mechanism, a filling device, and two heat-sealing mechanisms; The bag-removing mechanism is located on the top of the base and is used to remove the packaging bag from the vertical storage box; the bracket is fixedly located on the top of the base; the opening mechanism is located on the bracket and is used to cooperate with the bag-removing mechanism to open the bag opening; the filling equipment is fixedly located on the bracket and is used to quantitatively fill the packaging bag with food. The two heat-sealing mechanisms are mounted on the support and are used to seal the opening of the packaging bag.

4. The food packaging apparatus as described in claim 3, characterized in that, The bag-retrieving mechanism includes a mounting frame, an I-beam frame, a second lead screw, a third motor, two first guide rods, an L-shaped frame, a first servo electric cylinder, a swing rod, a first vacuum suction cup, and a second servo electric cylinder; The mounting bracket is fixedly mounted on the top of the base; the I-beam is slidably mounted on the mounting bracket; the second lead screw is rotatably mounted on the mounting bracket and threadedly connected to the I-beam; the third motor is fixedly mounted on the top of the mounting bracket, and the output end of the third motor is fixedly connected to the second lead screw; the two first guide rods are slidably mounted on the I-beam; the L-shaped frame is fixedly mounted on one end of the two first guide rods; the first servo electric cylinder is fixedly mounted on the I-beam, and the output end of the first servo electric cylinder is fixedly connected to the L-shaped frame; the bottom end of the swing rod is rotatably connected to the L-shaped frame, and the top end of the swing rod is fixedly mounted with the first vacuum suction cup; The cylinder body of the second servo electric cylinder is rotatably connected to the L-shaped frame, and the output end of the second servo electric cylinder is rotatably connected to the swing rod.

5. The food packaging apparatus as described in claim 4, characterized in that, The opening mechanism includes a side frame, a third servo electric cylinder, and a second vacuum suction cup; The side frame is fixedly mounted on one side of the bracket, and the third servo electric cylinder is fixedly mounted on the side frame; the second vacuum suction cup is fixedly mounted on the output end of the third servo electric cylinder.

6. The food packaging apparatus as described in claim 5, characterized in that, The heat sealing mechanism includes a support plate, two second guide rods, a heat sealing block, and a fourth servo electric cylinder. The support plate is fixedly mounted on one side of the bracket; the two second guide rods are slidably mounted on the support plate; the heat sealing block is fixedly mounted on one end of the two second guide rods; the fourth servo electric cylinder is fixedly mounted on the support plate, and the output end of the fourth servo electric cylinder is fixedly connected to the heat sealing block.

7. The food packaging apparatus as described in claim 6, characterized in that, The bag-taking and filling assembly also includes a conveyor belt; The conveyor belt is fixedly mounted on the top of the base and located below the filling equipment.

8. The food packaging apparatus as described in claim 7, characterized in that, The bag-taking and filling assembly also includes a fall prevention mechanism; The anti-fall mechanism is mounted on the bracket and is used to support the packaging bag when food is being filled into the packaging bag.

9. The food packaging apparatus as described in claim 8, characterized in that, The fall protection mechanism includes a U-shaped frame, a third lead screw, a fourth motor, and an L-shaped plate; The U-shaped frame is fixedly mounted on one side of the support; one end of the third lead screw is rotatably connected to the support, and the other end is rotatably connected to the U-shaped frame; the fourth motor is fixedly mounted on the U-shaped frame, and the output end of the fourth motor is fixedly connected to the third lead screw; the L-shaped plate is slidably mounted on the support and threadedly connected to the third lead screw, and passes through the support.

10. A food packaging method, applied to the food packaging apparatus as described in any one of claims 1 to 9; characterized in that, Includes the following steps: Stack the packaging bags on the support plate inside the vertical storage box of the two bag supply components; The workstation switching component switches one of the bag feeding components to the bag picking station; The bag-taking and filling unit takes out a packaging bag from the vertical storage box of the bag-feeding unit located at the bag-taking station; After the packaging bag is removed, the first motor of the bag feeding assembly drives the first lead screw to rotate, which in turn drives the bearing plate to rise to the height of one packaging bag thickness through the connecting block, so that the next packaging bag can be raised to the bag picking height. The bag-filling assembly fills the removed packaging bag with food, seals it, and then transports it away.

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