Packaging process for halogen eggs

Abstract

The application discloses a halogen egg packaging production process, which cuts halogen eggs in half through a filament in a discharging device, and drives the halogen eggs cut in half to perform a second overturning action through filament rotation, and realizes full-automatic bubble eye packaging of the halogen eggs cut in half in combination with dynamic conveying of a stretching film. The process improves production efficiency, reduces labor cost, guarantees hygiene, and is applicable to industrialized continuous production.

Description

Technical Field

[0001] This invention relates to the field of food packaging technology, specifically to a packaging process for braised eggs that involves cutting them in half before packaging. Background Technology

[0002] Currently, braised eggs on the market are often vacuum-sealed whole on packaging machines. These whole eggs are quite large, and young children often only eat a portion at a time, leading to waste. Furthermore, whole braised eggs don't absorb the flavor well. Therefore, there's a demand for braised eggs to be cut in half before packaging. However, currently, cutting braised eggs in half is done manually using a knife. This method is labor-intensive, and the uneven cutting, varying from person to person, greatly affects the consistency of packaging dimensions. Summary of the Invention

[0003] To address the aforementioned problems, the present invention aims to provide a production process for automatically halving and packaging braised eggs, thereby improving production efficiency, reducing labor costs, and ensuring hygiene.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a process for producing packaged braised eggs, characterized by comprising the following steps: S1. The bubbles formed by the stretch film under the film are conveyed to the feeding station to wait; S2. The braised eggs are placed manually or automatically into the material chamber, which is arranged in multiple rows and columns, and the bottom of the material chamber is covered by a movable sealing plate; S3. The lifting plate and the material chamber move horizontally relative to each other, so that the lifting plate is above the material chamber. Multiple sets of thin wires are installed on the lifting plate, each set of thin wires corresponding to a row of material chambers. Each set of thin wires includes a first thin wire that cuts the braised egg in half and a second thin wire that pushes the already cut braised egg to flip. The first and second thin wires are aligned front and back. The two ends of the first and second thin wires are connected to the rotating block. The rotating block is rotatably mounted on the lifting plate. There are through holes for thin wire flipping and clearance between adjacent material chambers in each row of material chambers. S4. The lifting plate moves downward, driving the thin wires downward into the material chamber to cut the braised eggs in half. At this time, the first and second thin wires are aligned front and back in the vertical direction, with the first thin wire at the bottom. S5. After cutting the braised egg in half, the lifting plate moves up slightly so that the first and second filaments are both within the filament flipping clearance hole area. Then, the rotating block drives the first and second filaments to flip 90 degrees, so that the first and second filaments are aligned front and back in the horizontal direction. During the 90-degree flip of the first and second filaments, the first and second filaments will simultaneously push the halved braised egg to flip 90 degrees. Thus, the left half of the braised egg flips down and is supported by the sealing plate, while the right half of the braised egg flips up and is supported by the first and second filaments. S6. Sealing plate activity: The through hole on the sealing plate is aligned with the bottom of the material cavity. The left half of the marinated egg will fall out of the material cavity due to gravity and enter the bubble of the stretch film waiting at the feeding station. The stretch film is conveyed forward by one plate distance, and the sealing plate returns to its position. S7. The rotating block drives the first and second filaments to rotate 180 degrees, pushing the right half of the braised egg downwards 180 degrees to transfer its position. After it is rotated into place, the right half of the braised egg is supported by the sealing plate. Then the sealing plate moves, and the through hole set on the sealing plate is aligned with the bottom of the material cavity. The right half of the braised egg will also fall out of the material cavity due to gravity and enter the bubble of the lower membrane of the stretching film. The lower membrane of the stretching film continues to be conveyed forward by one plate distance. S8. After completing the above actions, the filament returns to its original state, the first and second filaments are aligned front and back in the vertical direction, the first filament is at the bottom, and then the lifting plate returns to its original position, waiting for the next action; S9. The stretch film under the brine eggs, which are then filled with the eggs, is vacuum-sealed and then cut into individual packages in the next process.

[0005] Preferably, the second filament is provided in two parts.

[0006] The beneficial effects of this invention are: 1. The small contact area of ​​the fine wire cutting makes it easier to cut the braised eggs in half and prevents them from sticking to the sauce.

[0007] 2. High-efficiency material removal: 100% material removal is achieved through two rotations of the fine wire, with a short cycle time and a simple action structure.

[0008] 3. Hygiene protection: Reduce human contact with contaminants during equipment operation.

[0009] The present invention will now be further described with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0010] Figure 1 This is a perspective view of a specific embodiment of the present invention; Figure 2 This is a perspective view of the feeding device according to a specific embodiment of the present invention; Figure 3 This is a cross-sectional view of the feeding device in a specific embodiment of the present invention; Figure 4 This is a partially enlarged view of the feeding device in a specific embodiment of the present invention.

[0011] In the diagram, 1 is the film roll unloading rack; 2 is the mold; 3 is the unloading device; 4 is the upper film roll unloading rack; 5 is the vacuum heat sealing mechanism; 6 is the slitting mechanism; 7 is the waste material rewinding rack; 100 is the material frame; 1001 is the discharge hole; 101 is the material cavity; 102 is the filament; 102a is the first filament; 102b is the second filament; 103 is the rotating block; 104 is the support plate; 105 is the sealing plate; 106 is the cutting groove; 1061 is the filament flipping clearance hole; 107 is the cylinder; 108 is the through hole; 201 is the fixing frame; 202 is the lifting plate; 203 is the guide rail; 205 is the screw; 206 is the internal threaded sleeve; 207 is the lifting motor; 210 is the rotating shaft; 202 is the lifting plate; 214 is the synchronous gear; 211 is the rotating motor; 213 is the transmission gear; 214 is the synchronous gear; 215 is the first pulley; 216 is the transmission belt; 217 is the second pulley; 218 is the insertion plate. Detailed Implementation

[0012] The present invention will be specifically described below through embodiments, which are only used to further illustrate the present invention and should not be construed as limiting the scope of protection of the present invention.

[0013] like Figure 1 As shown, this embodiment discloses a stretch film packaging machine, the structure of which includes, in sequence, a lower film roll feeding rack 1, a lower film bubble thermoforming mold 2, a feeding device 3, an upper film roll feeding rack 4, a vacuum heat sealing mechanism 5, a slitting mechanism 6, and a waste material winding rack 7. The braised eggs are vacuum packaged by the stretch film packaging machine. Since the braised eggs need to be slitted, the braised eggs are slitted and fed into the stretch film packaging machine for packaging.

[0014] The production process for packaging braised eggs on this stretch film packaging machine mainly involves the following steps: S1. The bubbles formed by the stretch film under film are conveyed to the feeding station (3 below the feeding device) to wait; S2. The braised eggs are placed manually or automatically into the material chamber 101, which is arranged in multiple rows and columns, and the bottom of the material chamber 101 is covered by a movable sealing plate 105. S3. The material chamber 101 is moved horizontally to the bottom of the lifting plate 202. Multiple sets of fine wires 102 are installed on the lifting plate 202. Each set of fine wires 102 corresponds to a row of material chambers 101. Each set of fine wires includes a first fine wire 102a for cutting the braised egg in half and a second fine wire 102b for flipping the already cut braised egg. The first and second fine wires are aligned front and back. The two ends of the first and second fine wires are connected to the rotating block 103. The rotating block 103 is rotatably mounted on the lifting plate 202. A through fine wire flipping clearance hole 1061 is provided between adjacent material chambers 101 in each row of material chambers 101. S4. The lifting plate 202 moves downward, driving the filament 102 downward into the material chamber 101 to cut the braised egg in the material chamber 101 in half. At this time, the first and second filaments are aligned front and back in the vertical direction, with the first filament 102a at the bottom. S5. After the braised egg is cut in half, the lifting plate 202 moves up slightly so that the first and second filaments are both within the range of the filament flipping clearance hole 1061. Then the rotating block 103 drives the first and second filaments to flip 90 degrees, so that the first and second filaments are aligned front and back in the horizontal direction. During the 90-degree flip of the first and second filaments, the first and second filaments will simultaneously push the halved braised egg to flip 90 degrees. Thus, the left half of the braised egg flips down and is supported by the sealing plate 105, while the right half of the braised egg flips up and is supported by the first and second filaments. S6. When the sealing plate 105 moves, the through hole 108 on the sealing plate 105 is aligned with the bottom of the material cavity 101. The left half of the marinated egg will fall out of the material cavity 101 due to gravity and enter the bubble of the stretch film lower membrane waiting at the feeding station. The stretch film lower membrane is conveyed forward by one plate distance, and the sealing plate 105 returns to its original position. S7. Rotating block 103 drives the first and second filaments to rotate 180 degrees, pushing the right half of the braised egg downwards 180 degrees to rotate and move it to the correct position. After rotating to the correct position, the right half of the braised egg is supported by sealing plate 105. Then sealing plate 105 moves, and the through hole 108 provided on sealing plate 105 is aligned with the bottom of material cavity 101. The right half of the braised egg will also fall out of material cavity 101 due to gravity and enter the bubble formed by the lower film of the stretching film. The lower film of the stretching film continues to be conveyed forward by one plate distance. S8. After completing the above actions, the filaments return to their original state, and the first and second filaments are aligned front and back in the vertical direction. The first filament 102a is located at the bottom. Then the lifting plate 202 returns to its original position, and the material chamber 101 also returns to its original position, waiting for the next action. S9. The stretch film under the brine eggs, which are then filled with the eggs, is vacuum-sealed and then cut into individual packages in the next process.

[0015] The sealing plate 105 is provided with through holes 108 corresponding to the lower opening of the material cavity 101. The sealing plate 105 is attached to the bottom surface of the material cavity 101 and slides relative to it through the structure of guide block and guide groove. The piston rod of the cylinder 107 extends to drive the through holes 108 on the sealing plate to align with the lower opening of the material cavity 101. The piston rod of the cylinder 107 retracts to drive the through holes 108 on the sealing plate to be misaligned with the lower opening of the material cavity 101, so that the sealing plate 105 blocks the lower opening of the material cavity 101.

[0016] The upper and lower membranes are dynamically aligned using a photoelectric sensor, with a positional deviation of ≤±0.3mm.

[0017] The following is a detailed explanation of the production process steps for packaging braised eggs: I. Raw material screening and cleaning 1. Select whole, undamaged cooked / marinated eggs and discard any defective products with broken yolks, cracks, etc.

[0018] Disinfect by soaking in sodium hypochlorite solution with an effective chlorine concentration of 100-200 mg / kg for 4-5 minutes, then rinse with clean water to remove residue.

[0019] 2. Pre-cooking and cooling Place the eggs in salted boiling water and simmer for 4-5 minutes to coagulate the egg whites and yolks.

[0020] Immediately cool the egg with cold water to prevent the shell from cracking due to excessive temperature difference.

[0021] 3. Surface treatment Peeling: Remove the eggshell and egg white membrane to facilitate subsequent cutting.

[0022] II. Slitting and Dewatering Stage 1. Positioning and Cutting The eggs are placed into the material chamber 101 of the feeding device 3, and the bottom is closed.

[0023] Two rotating blocks drive multiple filaments arranged vertically. The lowest filament, with a diameter of 0.2-0.5mm, moves down and cuts into the egg body to complete the cutting. After cutting, it retracts slightly so that the filament is placed in the filament flipping clearance hole.

[0024] 2. First unloading The rotating block rotates 90°, arranging the filaments horizontally and opening the bottom of the material chamber; The marinated egg below the second fine filament falls automatically into the bubble of the lower membrane due to gravity.

[0025] Second unloading 3. Continue rotating the block 180°, transferring the remaining braised eggs to below the second fine filament; The bottom of the material chamber is opened a second time, and the remaining marinated eggs are completely removed.

[0026] III. Stretch Film Packaging Forming Stage 1. Lower film forming After being unwound by the unwinding mechanism, the lower film is conveyed to the mold and thermoformed to form regularly arranged bubbles.

[0027] 2. Place the marinated egg in the simmering water and align it. After being de-materialized, the marinated eggs fall precisely into the lower membrane bubble. The photoelectric sensor detects the position deviation as ≤±0.3mm and adjusts the upper membrane conveying speed accordingly.

[0028] 3. Vacuum heat sealing After the upper membrane covers the lower membrane, the vacuum pump extracts air from the chamber to a vacuum level ≤5 kPa; The heat-sealing unit seals the upper and lower films at 120-150℃ and 0.3-0.5MPa pressure, forming an independent chamber 26.

[0029] 4. Cutting and Finished Product Individual small packages are obtained by cutting with a die.

[0030] IV. Post-processing stage High-temperature sterilization Vacuum-packed braised eggs undergo high-temperature sterilization, such as at 121°C for 15-20 minutes, to extend their shelf life. Among them, such as Figures 2-4 As shown, the feeding device 3 for braised eggs includes: a material frame 100: braised eggs are poured into the material frame, and the bottom side of the material frame 100 has a matrix of discharge holes 1001, so that the worker can scrape the braised egg material on one side to the discharge hole side, so that it can quickly reach the discharge hole, or it can be completed automatically by a robot. Material chamber 101: Used to place the braised eggs to be cut. It has an openable and closable structure at the bottom. The material chamber 101 corresponds to the discharge hole one by one. Each material chamber can only hold one braised egg. Therefore, workers can fill the braised eggs in the material frame more conveniently. Each row of material chambers 101 has a vertically penetrating cutting groove 106 in the middle, which is used for the fine wire to enter and cut the braised eggs in the material chamber in half. There is a penetrating fine wire turning and clearance hole 1061 between adjacent material chambers 101 in each row of material chambers 101. Multiple filaments 102: including one first filament 102a and two second filaments 102b, the filaments are arranged in a straight line and connected by two rotating blocks 103, and the diameter of the filaments is 0.12mm; Rotating block 103: Two rotating blocks are symmetrically arranged and can be raised, lowered and rotated in the same direction synchronously to drive the filament to cut vertically or unload horizontally; Pallet 104 and sealing plate 105: Pallet 104 is provided with multiple material chambers 101 and cutting grooves 106 for filaments to pass through. The cutting grooves 106 are provided with filament turning clearance holes 1061 for filament turning. The sealing plate 105 is located below the pallet 104 and is driven to extend and retract by cylinder 107. The sealing plate is provided with through holes 108 corresponding to the material chambers, thus forming an opening and closing structure. Pallet 104 is slidably connected to the frame through guide rail 203 and is driven to move horizontally by moving cylinder.

[0031] Transmission structure Fixed frame 201 and lifting plate 202: The lifting plate 202 can be moved up and down inside the fixed frame 201, and the fixed frame 201 is fixedly installed; Lifting mechanism: The lifting plate 202 is threadedly connected to the internal threaded sleeve 206 via the screw 205; the internal threaded sleeve 206 is driven by the lifting motor 207 through the pulley and the lifting belt to achieve a vertical movement stroke accuracy of ±0.3mm for the lifting plate 202; Rotary drive: The rotating block 103 is connected to the lifting plate 202 via its central shaft; the lifting plate 202 is provided with a rotatable rotating shaft 210, and the end of the rotating shaft 210 is connected to a synchronous gear 214. The rotating motor 211 drives the rotating shaft 210 to rotate synchronously through the drive gear, the transmission gear 213 and the synchronous gear 214; the shaft end of the rotating shaft 210 is provided with a first pulley 215, which is connected to a second pulley 217 through a transmission belt 216. The second pulley 217 is installed on the central shaft of the rotating block 103 to ensure that the two rotating blocks 103 rotate synchronously in the same direction. The lifting plate is connected with an insert plate 218 with an inner cavity. The central shaft of the rotating block is installed at the end of the insert plate 218. The support plate 104 is provided with a relief groove 90 for the end of the insert plate 218 to be inserted, so that the filament can be extended into the material cavity.

[0032] This allows for the lifting and rotation of the filaments. During the lifting process, the lowest filament 102 is the first filament 102a, used for cutting the material. The remaining filaments are the second filaments 102b. After cutting the material, the rotating block 103 rotates to align the filaments horizontally in a straight line, and the bottom of the material cavity 101 opens. This allows the material below the second filaments to be lifted out of the material cavity by gravity. Then, the rotating block rotates 180° to move the material above the second filaments to below them, allowing the other half of the material to be lifted out of the material cavity by gravity. The lower film roll on the lower film roll unloading rack 1 is then traction-conveyed to the lower film forming mold 2 for forming, giving it the desired shape. The lower film bubble is arranged in a regular pattern. The lower film bubble is transferred to the feeding device 3. The cut marinated eggs in the material cavity detach from the material cavity and fall into the lower film bubble. The lower film bubble is then conveyed to the vacuum heat sealing mechanism 5. The upper film roll is placed on the upper film roll feeding rack 4 and output to the vacuum heat sealing mechanism 5, covering the lower film bubble, realizing vacuum coating and sealing. Then it passes through the slitting mechanism 6, which includes a die and a slitting cylinder. The piston rod of the slitting cylinder is connected to the die to make it move up and down, thereby cutting out individual packages. The die has a ring-shaped cutting edge with the outline of an egg, so that the coated and sealed marinated eggs are cut out independently. The waste material of the upper and lower films is wound up by the waste material winding rack 7.

Claims

1. A process for producing packaged braised eggs, characterized in that... Includes the following steps: S1. The bubbles formed by the stretch film under the film are conveyed to the feeding station to wait; S2. The braised eggs are placed manually or automatically into the material chamber, which is arranged in multiple rows and columns, and the bottom of the material chamber is covered by a movable sealing plate; S3. The lifting plate and the material chamber move horizontally relative to each other, so that the lifting plate is above the material chamber. Multiple sets of thin wires are installed on the lifting plate, each set of thin wires corresponding to a row of material chambers. Each set of thin wires includes a first thin wire that cuts the braised egg in half and a second thin wire that pushes the already cut braised egg to flip. The first and second thin wires are aligned front and back. The two ends of the first and second thin wires are connected to the rotating block. The rotating block is rotatably mounted on the lifting plate. There are through holes for thin wire flipping and clearance between adjacent material chambers in each row of material chambers. S4. The lifting plate moves downward, driving the thin wires downward into the material chamber to cut the braised eggs in half. At this time, the first and second thin wires are aligned front and back in the vertical direction, with the first thin wire at the bottom. S5. After cutting the braised egg in half, the lifting plate moves up slightly so that the first and second filaments are both within the filament flipping clearance hole area. Then, the rotating block drives the first and second filaments to flip 90 degrees, so that the first and second filaments are aligned front and back in the horizontal direction. During the 90-degree flip of the first and second filaments, the first and second filaments will simultaneously push the halved braised egg to flip 90 degrees. Thus, the left half of the braised egg flips down and is supported by the sealing plate, while the right half of the braised egg flips up and is supported by the first and second filaments. S6. Sealing plate activity: The through hole on the sealing plate is aligned with the bottom of the material cavity. The left half of the marinated egg will fall out of the material cavity due to gravity and enter the bubble of the stretch film waiting at the feeding station. The stretch film is conveyed forward by one plate distance, and the sealing plate returns to its position. S7. The rotating block drives the first and second filaments to rotate 180 degrees, pushing the right half of the braised egg downwards 180 degrees to transfer its position. After it is rotated into place, the right half of the braised egg is supported by the sealing plate. Then the sealing plate moves, and the through hole set on the sealing plate is aligned with the bottom of the material cavity. The right half of the braised egg will also fall out of the material cavity due to gravity and enter the bubble of the lower membrane of the stretching film. The lower membrane of the stretching film continues to be conveyed forward by one plate distance. S8. After completing the above actions, the filament returns to its original state, the first and second filaments are aligned front and back in the vertical direction, the first filament is at the bottom, and then the lifting plate returns to its original position, waiting for the next action; S9. The stretch film under the brine eggs, which are then filled with the eggs, is vacuum-sealed and then cut into individual packages in the next process.

2. The production process for packaging braised eggs according to claim 1, characterized in that: The second filament has two parts.

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