Vacuum packaging machine for cheese processing and using method of vacuum packaging machine

Abstract

The invention discloses a vacuum packaging machine for cheese processing and a using method thereof, and relates to the technical field of food processing, and the vacuum packaging machine comprises a first annular conveying belt, an automatic sorting mechanism and a central controller. By means of the first annular conveying belt and the second annular conveying belt under the first annular conveying belt, space is saved, the material flow direction is optimized, the automatic sorting mechanism located at the tail end of the first annular conveying belt can dynamically adjust the sorting angle under precise regulation and control of the central controller, efficient and accurate automatic sorting is achieved, and the working efficiency is improved. The upper conveying belt and the lower conveying belt are synchronously driven by the same driving motor through a transmission mechanism, strict and consistent operation speed is ensured, blockage or product damage in the sorting process is effectively prevented, the sorting flexibility and adaptability are improved through intelligent coordination of the central controller, and the sorting efficiency is improved through the design of sharing a driving source and assisting sliding by means of gravity. Energy conservation and consumption reduction are achieved, and then the space utilization rate, the automation level, the operation stability and the energy efficiency of the cheese vacuum packaging production line are remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of food processing, in particular to a vacuum packaging machine for cheese processing and a use method thereof. Background Art

[0002] Cheese, also known as cottage cheese, is a fermented milk product. Its properties are similar to common yogurt. Both are made through a fermentation process and contain lactic acid bacteria that can be used for health. However, the concentration of cheese is higher than that of yogurt, which is close to solid food, and its nutritional value is therefore richer. The vacuum packaging machine can automatically extract the air in the packaging bag and complete the sealing process after reaching the predetermined vacuum degree. Vacuum packaging machines are often used in the food industry because after vacuum packaging, the food can be resistant to oxidation, thereby achieving the purpose of long-term preservation.

[0003] The defects of existing cheese processing vacuum packaging machines are:

[0004] 1. Patent document US07302784B2 discloses a vacuum packaging machine. However, the device described in the above document has technical problems such as insufficient optimization of material flow, resulting in a bloated overall layout and the inability of the sorting mechanism to dynamically adjust according to real-time conditions, resulting in inaccurate or inefficient sorting and requiring frequent manual intervention for correction or assistance.

[0005] 2. Patent document US07228674B2 discloses a vacuum packaging machine, but the device in the above document lacks an effective, real-time visual detection system, or the detection accuracy is insufficient to accurately determine the shape and position of the cheese;

[0006] 3. Patent document US4869050A discloses a vacuum packaging machine. However, the device in the above document has technical problems such as insufficient fixation of soft and easily deformable cheese packaging bags during transportation and vacuum packaging, which easily causes displacement and tilting, resulting in inaccurate packaging position and poor sealing.

[0007] 4. Patent document CN117228051B discloses a vacuum packaging machine for beef jerky processing. However, the device in the above document lacks effective buffering measures when cheese falls from the previous process to the next conveyor belt. The impact force of the fall can easily cause irreversible deformation or internal damage to the soft cheese, affecting product quality. Summary of the Invention

[0008] The object of the present invention is to provide a vacuum packaging machine for cheese processing and a method of using the same, so as to solve the technical problems raised in the above background technology.

[0009] To achieve the above-mentioned object, the present invention provides the following technical solution: a vacuum packaging machine for cheese processing, comprising a first endless conveyor belt, an automatic sorting mechanism, and a central controller, wherein the automatic sorting mechanism is provided at the tail end of the first endless conveyor belt, and the central controller is provided on one side of the first endless conveyor belt;

[0010] The four corners of the bottom of the first endless conveyor belt are fixedly connected with vertical fixed legs, and the bottom of the inner wall of the fixed leg is provided with a second endless conveyor belt, and the second endless conveyor belt is located directly below the first endless conveyor belt;

[0011] The automatic sorting mechanism includes an inclined guide bracket provided at the rear end of the fixed leg, a guide groove inclined toward the second endless conveyor belt is provided inside the inclined guide bracket, a through hole is provided at the front end of the top of the inclined guide bracket, a guide plate is provided inside the through hole via a rotating shaft, and a first servo motor for driving the guide plate to rotate is provided at the front end of the outer wall of the inclined guide bracket;

[0012] The first endless conveyor belt and the second endless conveyor belt are synchronously driven by the same drive motor through a transmission mechanism;

[0013] The central controller is connected to the first servo motor and the drive motor signal to dynamically control the sorting angle of the guide plate.

[0014] Preferably, an angle sensor is integrated inside the rotating shaft of the guide plate, and the angle sensor feeds back angle data to the central controller in real time.

[0015] Preferably, a plurality of groups of limiting holes are evenly opened on the surface of the first annular conveyor belt, a group of first rubber limiting rings are fixedly connected to the inner wall of the limiting hole, a limiting rod is movably connected to the inner wall of the limiting hole, a second rubber limiting ring is movably connected to the outer wall of the limiting rod, and the second rubber limiting ring is dynamically sealed with the first rubber limiting ring, a storage card seat is vertically fixedly installed on the top of the limiting rod, a vacuum suction cup is embedded in the top of the storage card seat, one end of the vacuum suction cup is connected to a vacuum generator through a flexible pipe, and the vacuum generator is arranged on the outer wall of the storage card seat.

[0016] Preferably, it also includes a vacuum chamber arranged in the middle of the top of the first circular conveyor belt, a hydraulic cylinder is arranged in the middle of the top of the vacuum chamber, the output end of the hydraulic cylinder passes through the top of the vacuum chamber and is installed with a sealing pressure plate, the edge of the bottom of the sealing pressure plate is provided with a sealing airbag and a heating strip, and a vacuum pump is provided on the side wall of the vacuum chamber. The vacuum pump is opened and closed by an electromagnetic valve controller. When the vacuum chamber is started, the hydraulic cylinder drives the sealing pressure plate down to the surface of the storage seat, and the sealing airbag is inflated to form a sealed cavity and then the vacuum pump draws vacuum.

[0017] Preferably, a visual detection device is provided above the first endless conveyor belt between the vacuum chamber and the automatic sorting mechanism, and the visual detection device is connected to the central controller signal to identify the position and shape of the cheese in real time.

[0018] Preferably, the transmission mechanism includes a connecting frame installed at the front end of one side of the first endless conveyor belt, a driving motor is installed on the inner wall of the connecting frame, a first transmission roller is installed on the output end of the driving motor, and one end of the first transmission roller passes through one side of the first endless conveyor belt and is connected to the active roller of the first endless conveyor belt, a transmission belt is installed on the outer wall of the first transmission roller, a second transmission roller is installed on the other end of the outer wall of the transmission belt, and one end of the second transmission roller passes through one side of the fixed leg and one side of the second endless conveyor belt and is connected to the active roller of the first endless conveyor belt.

[0019] Preferably, a buffer guide slide is provided above the feed end of the second endless conveyor belt, the top of the buffer guide slide is connected to the outlet end of the guide groove, and the bottom thereof extends to the bearing surface of the second endless conveyor belt, and a shock-absorbing elastic sheet is embedded in the inner wall of the buffer guide slide to attenuate the impact force when the cheese falls.

[0020] Preferably, a dynamic diversion mechanism is provided at the outlet end of the buffer material guide chute, and the dynamic diversion mechanism includes a group of diversion guide plates horizontally arranged on both sides of the end of the buffer material guide chute through hinges, and a group of arc grooves are opened at the outlet end of the top of the buffer material guide chute. The inner wall of the arc groove is movably connected with a movable block, and the top of the movable block is fixedly connected to one end of the bottom of the diversion guide plate.

[0021] Preferably, a third servo motor is installed on both sides of the bottom of the buffer guide chute, and the output end of the third servo motor passes through the buffer guide chute and is connected to the other end of the bottom of the diversion guide plate. An infrared counter-radiation sensor is provided at the entrance of the buffer guide chute. The infrared counter-radiation sensor monitors the falling distance of the cheese in real time. When the distance is less than the set threshold, the central controller starts the third servo motor to adjust the rotation of the diversion guide plate, so that the cheese falls alternately into the left and right partitions of the second circular conveyor belt.

[0022] Preferably, the working steps of the cheese processing vacuum packaging machine are as follows:

[0023] S1. The central controller starts the drive motor, which drives the first and second endless conveyor belts synchronously through the transmission mechanism to move the cheese bags through the first endless conveyor belt toward the tail end.

[0024] S2. When the cheese block approaches the tail end of the first endless conveyor belt, the central controller determines whether the cheese block is "qualified" or "unqualified" according to the preset sorting criteria;

[0025] S3, the cheese block is a "qualified product": the central controller sends a signal to the first servo motor, and the first servo motor drives the guide plate to rotate so that the cheese block is conveyed on the second endless conveyor;

[0026] The cheese block is considered "rejected": the central controller sends a signal to the first servo motor to adjust the angle of the guide plate so that the cheese block is discharged through the inclined guide bracket;

[0027] S4. The qualified cheese block slides out of the guide groove and enters the buffer guide slide. During the sliding process, the cheese block contacts the shock-absorbing elastic sheet embedded in the inner wall of the buffer guide slide, effectively attenuating the impact force of the cheese falling, preventing the cheese from being damaged or deformed due to collision.

[0028] S5. At the entrance of the buffer guide chute, an infrared radiation sensor monitors the distance between the cheese blocks sliding down continuously in real time;

[0029] S6. The central controller immediately starts the third servo motor, which drives the diversion guide plate to alternately deflect through the precise displacement of the moving block in the arc groove, forcing the cheese to fall alternately into the left and right partitions of the second ring conveyor belt, eliminating the risk of accumulation at the source.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. This invention saves space and optimizes material flow by combining a first endless conveyor belt and a second endless conveyor belt directly below it. The automatic sorting mechanism at the tail end of the first endless conveyor belt dynamically adjusts the sorting angle under the precise control of a central controller, achieving efficient and accurate automated sorting and significantly reducing manual intervention. The upper and lower conveyor belts are synchronously driven by the same drive motor through a transmission mechanism, ensuring strict consistency in speed, effectively preventing blockages and product damage during the sorting process, and ensuring a smooth process and product safety. The intelligent coordination of the central controller not only enhances sorting flexibility and adaptability, but also achieves energy conservation and consumption reduction through a shared drive source and gravity-assisted sliding design. This significantly improves the space utilization, automation level, operational stability, and energy efficiency of the cheese vacuum packaging production line.

[0032] 2. During the sorting process, the present invention uses a visual inspection device located behind the vacuum chamber to identify the shape and position of the cheese in real time and transmit the data to a central controller. The controller dynamically adjusts the first servo motor based on the inspection results, driving the guide plate to rotate a specific angle, thereby accurately guiding qualified products to the second endless conveyor belt.

[0033] 3. This invention uses a dynamic seal between the first rubber limiting ring and the second rubber limiting ring on the limiting rod to enable the storage holder to adaptively fine-tune its displacement during transportation. Combined with the stable negative pressure adsorption of the vacuum suction cup, this completely solves the problem of soft cheese packaging bag displacement. A hydraulic cylinder in the vacuum chamber drives the sealing pressure plate downward, and the sealing airbag at its edge is inflated to form a flexible and sealed cavity. Simultaneously integrated heating strips achieve integrated vacuuming and heat sealing operations, ensuring zero physical damage to the cheese while improving the packaging qualification rate and single-piece processing time.

[0034] 4. The present invention effectively attenuates the impact force of cheese falling by using shock-absorbing elastic sheets embedded in the inner wall of the buffer guide slide, thereby avoiding deformation and damage to soft cheese. At the same time, the infrared radiation sensor monitors the falling distance in real time. When the distance is less than the threshold, the central controller immediately starts the third servo motor, which drives the diversion guide plate to deflect alternately through the precise displacement of the moving block in the arc groove, forcing the cheese to fall alternately into the left and right partitions of the second circular conveyor belt, eliminating the risk of accumulation at the source. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0036] Figure 2 Schematic diagram of the guide groove structure of the present invention;

[0037] Figure 3 Schematic diagram of the diversion guide plate structure of the present invention;

[0038] Figure 4 This is a schematic structural diagram of the tilt guide bracket of the present invention;

[0039] Figure 5 For the present invention Figure 4 Schematic diagram of the structure at A in the middle;

[0040] Figure 6 This is a schematic structural diagram of the first endless conveyor belt of the present invention;

[0041] Figure 7 Schematic diagram of the vacuum chamber structure of the present invention;

[0042] Figure 8 Schematic diagram of the workflow of the present invention.

[0043] Figure: 1. First endless conveyor belt; 3. Central controller; 4. Fixed leg; 5. Second endless conveyor belt; 6. Inclined guide bracket; 7. Guide groove; 8. Through hole; 9. Guide plate; 10. First servo motor; 11. Drive motor; 13. Restriction hole; 14. First rubber restriction ring; 15. Restriction rod; 16. Second rubber restriction ring; 17. Storage card holder; 18. Vacuum suction cup; 19. Vacuum generator; 20. Vacuum chamber; 21. Hydraulic cylinder; 22 , sealing pressure plate; 23, sealing airbag; 24, visual inspection device; 25, connecting frame; 27, first transmission roller; 28, transmission belt; 29, second transmission roller; 30, buffer guide slide; 31, shock-absorbing elastic sheet; 32, dynamic diversion mechanism; 33, diversion guide plate; 34, arc groove; 35, moving block; 37, third servo motor; 38, infrared counter-radiation sensor; 39, vacuum pump; 40, solenoid valve; 41, angle sensor; 42, heating strip. DETAILED DESCRIPTION

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0045] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0046] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0047] Example 1: Please refer to Figure 1 、 Figure 2 and Figure 6The present invention provides an embodiment of a vacuum packaging machine for cheese processing, comprising a first endless conveyor belt 1, an automatic sorting mechanism, and a central controller 3. The automatic sorting mechanism is provided at the tail end of the first endless conveyor belt 1. The central controller 3 is provided on one side of the first endless conveyor belt 1. Vertical fixed legs 4 are fixedly connected to the four corners of the bottom of the first endless conveyor belt 1. A second endless conveyor belt 5 is provided at the bottom of the inner wall of the fixed leg 4. The second endless conveyor belt 5 is located directly below the first endless conveyor belt 1. The automatic sorting mechanism includes an inclined guide bracket 6 provided at the tail end of the fixed leg 4. The inclined guide bracket 6 has a guide groove 7 disposed therein, which is inclined toward the second endless conveyor belt 5. A through hole 8 is formed at the front end of the top of the inclined guide bracket 6. A guide plate 9 is disposed within the through hole 8 via a rotating shaft. A first servo motor 10 is provided at the front end of the outer wall of the inclined guide bracket 6 to drive the guide plate 9. The first and second endless conveyor belts 1 and 5 are synchronously driven by the same drive motor 11 through a transmission mechanism. The central controller 3 is connected to the first servo motor 10 and the drive motor 11 by signal, dynamically controlling the sorting angle of the guide plate 9.

[0048] Furthermore, the second endless conveyor belt 5 is positioned directly below the first endless conveyor belt 1, fully utilizing the vertical space. The fixed legs 4 not only support the first conveyor belt but also house the second endless conveyor belt 5 and its associated transmission mechanism, resulting in a compact and efficient structural design. The core of the automatic sorting mechanism is the inclined guide bracket 6 and its internal guide groove 7. Gravity is used to allow cheese products to naturally slide down. Driven by a first servo motor 10, the guide plate 9 rotates about its axis, dynamically changing its angle. The central controller 3 precisely controls the first servo motor 10 based on a preset program or real-time detection signals, instantly adjusting the angle of the guide plate 9. This enables cheese products to be automatically, quickly, and accurately guided to different paths. The first and second endless conveyor belts 5 are driven by the same drive motor 11 through the transmission mechanism, ensuring strict synchronization. The inclined guide groove 7 provides a smooth transition from the tail end of the first conveyor belt to the second conveyor belt, reducing collisions and impacts on cheese blocks during sorting and falling. Sorting is completed while the conveyor belts are in continuous operation, without requiring downtime, ensuring smooth production line operation and significantly improving overall packaging efficiency.

[0049] Example 2: Please refer to Figure 1 and Figure 4 In one embodiment of the present invention, an angle sensor 41 is integrated into the rotating shaft of the guide plate 9, and the angle sensor 41 feeds back angle data to the central controller 3 in real time. A visual detection device 24 is provided above the first endless conveyor belt 1 between the vacuum chamber 20 and the automatic sorting mechanism, and the visual detection device 24 is connected to the central controller 3 by signal to identify the position and shape of the cheese in real time.

[0050] Furthermore, the actual angle of the guide plate 9 is continuously monitored by the angle sensor 41 integrated in the rotating shaft, and the data is fed back to the central controller 3 in real time. The visual inspection device 24 scans and analyzes the position, shape, surface defects or label integrity of the cheese before it enters the sorting area. The visual inspection is analyzed by the central controller 3 and a sorting instruction is issued, which controls the first servo motor 10 to drive the guide plate to the target angle.

[0051] Example 3: Please refer to Figure 1 、 Figure 4 、 Figure 5 and Figure 7 , an embodiment provided by the present invention: a plurality of groups of limiting holes 13 are evenly opened on the surface of the first endless conveyor belt 1, a group of first rubber limiting rings 14 are fixedly connected to the inner wall of the limiting hole 13, a limiting rod 15 is movably connected to the inner wall of the limiting hole 13, a second rubber limiting ring 16 is movably connected to the outer wall of the limiting rod 15, and the second rubber limiting ring 16 is dynamically sealed with the first rubber limiting ring 14, a storage card seat 17 is vertically fixedly installed on the top of the limiting rod 15, a vacuum suction cup 18 is embedded in the top of the storage card seat 17, one end of the vacuum suction cup 18 is connected to a vacuum generator 19 through a flexible pipe, and the vacuum generator 19 is provided on the outer wall of the storage card seat 17, and also includes a vacuum chamber 20 provided in the middle of the top of the first endless conveyor belt 1, a hydraulic cylinder 21 is provided in the middle of the top of the vacuum chamber 20, the output end of the hydraulic cylinder 21 passes through the top of the vacuum chamber 20 and is installed with a sealing pressure plate 22, and a sealing airbag 23 and a heating strip 42 are provided on the edge of the bottom of the sealing pressure plate 22. A vacuum pump 39 is provided on the side wall of the vacuum chamber 20, and the vacuum pump 39 is turned on and off by the solenoid valve 40 controller. When the vacuum chamber 20 is started, the hydraulic cylinder 21 drives the sealing pressure plate 22 to press down to the surface of the storage card seat 17, and the sealing airbag 23 is inflated to form a sealed cavity, and then the vacuum pump 39 evacuates the air.

[0052] Furthermore, through the dynamic sealing cooperation between the first rubber limiting ring 14 and the second rubber limiting ring 16 on the limiting rod 15, the storage card seat 17 can adaptively fine-tune its displacement during transportation. Combined with the stable negative pressure adsorption of the vacuum suction cup 18, the displacement problem of the soft cheese packaging bag is completely solved. The hydraulic cylinder 21 in the vacuum chamber 20 drives the sealing pressure plate 22 to press down, and its edge sealing airbag 23 is inflated to form a flexible closed cavity. The heating strip 42 is integrated simultaneously to realize the integrated vacuuming and heat sealing operation, while ensuring zero physical damage to the cheese, while improving the packaging qualification rate and single-piece processing time.

[0053] Example 4: Please refer to Figure 1 and Figure 2The present invention provides an embodiment in which a transmission mechanism includes a connecting frame 25 installed at the front end of one side of the first endless conveyor belt 1, a driving motor 11 is installed on the inner wall of the connecting frame 25, a first transmission roller 27 is installed on the output end of the driving motor 11, and one end of the first transmission roller 27 passes through one side of the first endless conveyor belt 1 and is connected to the active roller of the first endless conveyor belt 1, a transmission belt 28 is installed on the outer wall of the first transmission roller 27, and a second transmission roller 29 is installed on the other end of the outer wall of the transmission belt 28, and one end of the second transmission roller 29 passes through one side of the fixed leg 4 and one side of the second endless conveyor belt 5 and is connected to the active roller of the first endless conveyor belt 1;

[0054] Furthermore, the drive motor 11 drives the first transmission roller 27 to link the transmission belt 28 and the second transmission roller 29, rigidly synchronizing the linear speed of the two belts to completely eliminate the deviation of the sorting landing point. The central controller 3 dynamically adjusts the angle of the guide plate 9. Combined with the absolute synchronous operation of the two belts, the sorting action and the conveying rhythm are matched at the millisecond level. This design replaces electronic synchronization with mechanical hard connection, significantly improving the anti-interference ability in high humidity and high load environments, and providing zero-error, high-compactness and strong stability technical guarantees for continuous sorting and packaging of cheese.

[0055] Example 5: Please refer to Figure 1 、 Figure 2 and Figure 3 , an embodiment provided by the present invention: a buffer guide chute 30 is provided above the feeding end of the second endless conveyor belt 5, the top of the buffer guide chute 30 is connected to the outlet end of the guide groove 7, and its bottom extends to the bearing surface of the second endless conveyor belt 5, and a shock-absorbing elastic sheet 31 is embedded in the inner wall of the buffer guide chute 30 to attenuate the impact force of the cheese when it falls. A dynamic diversion mechanism 32 is provided at the outlet end of the buffer guide chute 30, and the dynamic diversion mechanism 32 includes a group of diversion guide plates 33 horizontally arranged on both sides of the end of the buffer guide chute 30 through a hinge, and a group of arc grooves 34 are opened at the outlet end of the top of the buffer guide chute 30. The inner wall of 34 is movably connected to a moving block 35, and the top of the moving block 35 is fixedly connected to one end of the bottom of the diverter guide plate 33. A third servo motor 37 is installed on both sides of the bottom of the buffer guide slide 30, and the output end of the third servo motor 37 passes through the buffer guide slide 30 and is connected to the other end of the bottom of the diverter guide plate 33. An infrared radiation sensor 38 is provided at the entrance of the buffer guide slide 30. The infrared radiation sensor 38 monitors the falling distance of the cheese in real time. When the distance is less than the set threshold, the central controller 3 starts the third servo motor 37 to adjust the rotation of the diverter guide plate 33, so that the cheese falls alternately into the left and right partitions of the second endless conveyor belt 5;

[0056] Furthermore, the shock-absorbing elastic sheet 31 embedded in the inner wall of the buffer guide slide 30 effectively attenuates the impact force of the cheese falling, avoiding deformation and damage of the soft cheese. At the same time, the infrared radiation sensor 38 monitors the falling distance in real time. When the distance is less than the threshold, the central controller 3 immediately starts the third servo motor 37, and drives the diversion guide plate 33 to deflect alternately through the precise displacement of the moving block 35 in the arc groove 34, forcing the cheese to fall alternately into the left and right partitions of the second ring conveyor belt 5, eliminating the risk of accumulation at the source.

[0057] Example 6: Please refer to Figure 8 The present invention provides an embodiment: the working steps of the cheese processing vacuum packaging machine are as follows:

[0058] S1: The cheese block to be packaged is placed manually or by a robot on the storage card seat 17 on the first endless conveyor belt 1. The vacuum generator 19 is activated and the vacuum suction cup 18 is evacuated through the flexible pipe. The vacuum suction cup 18 generates negative pressure, which adsorbs and fixes the packaging bag containing the cheese block on the storage card seat 17 to prevent it from shifting or tipping over during transportation.

[0059] S2, the central controller 3 starts the drive motor 11, which drives the first and second endless conveyor belts 1 and 5 synchronously through the transmission mechanism. The storage card 17 holding the cheese block moves along with the first endless conveyor belt 1 and enters the vacuum chamber 20 area;

[0060] S3: When the storage card seat 17 conveys the packaging bag containing the cheese block to the bottom of the vacuum chamber 20, the conveyor belt pauses, the hydraulic cylinder 21 starts, drives the sealing pressure plate 22 to move downward, and presses it to the surface of the storage card seat 17, the sealing airbag 23 is inflated to form a closed cavity, the central controller 3 opens the solenoid valve 40, starts the vacuum pump 39 to evacuate the closed cavity, and after reaching the preset vacuum degree, the vacuum pump 39 stops and heat-seals it through the heating strip 42. The solenoid valve 40 is closed, the sealing airbag 23 is exhausted and contracts, and the hydraulic cylinder 21 lifts the sealing pressure plate 22, and the vacuum packaging is completed;

[0061] S4: The vacuum-packed cheese block continues to move toward the tail end along the first endless conveyor belt 1. When it passes under the visual inspection device 24, the visual inspection device 24 captures an image of the packaged cheese and transmits the recognition result to the central controller 3 in real time.

[0062] S5. Determine if the cheese is qualified: the central controller 3 sends a signal to the first servo motor 10, driving the guide plate 9 to rotate to a specific angle. The qualified cheese block is guided by the guide plate 9 off the first conveyor belt and onto the second endless conveyor belt 5.

[0063] Determined as unqualified products: the central controller 3 sends a signal to the first servo motor 10, the angle of the guide plate 9 remains unchanged, and the unqualified products are discharged through the inclined guide bracket 6;

[0064] S6. The qualified cheese block slides out of the guide groove 7 and enters the buffer guide slide 30. The cheese block slides down the buffer guide slide 30. During the sliding process, the cheese block contacts the shock-absorbing elastic sheet 31 embedded in the inner wall of the buffer guide slide 30, effectively attenuating the impact force of the cheese falling, thereby preventing the cheese from being damaged or deformed due to collision.

[0065] S7. At the entrance of the buffer guide chute 30, the infrared radiation sensor 38 monitors the distance between the cheese blocks sliding down continuously in real time;

[0066] S8. The central controller 3 immediately starts the third servo motor 37, and drives the diversion guide plate 33 to alternately deflect through the precise displacement of the moving block 35 in the arc groove 34, forcing the cheese to fall alternately into the left and right partitions of the second ring conveyor belt 5, eliminating the risk of accumulation at the source.

[0067] Working principle: the second endless conveyor belt 5 is directly set below the first endless conveyor belt 1, making full use of the vertical space. The fixed leg 4 not only supports the first conveyor belt, but also accommodates the second endless conveyor belt 5 and related transmission mechanisms. The structural design is compact and efficient. The core of the automatic sorting mechanism is the inclined guide bracket 6 and the guide groove 7 inside it.Gravity is used to allow cheese products to slide naturally. The guide plate 9 can rotate around the rotating axis under the drive of the first servo motor 10 and dynamically change its angle. The central controller 3 accurately controls the first servo motor 10 according to the preset program or real-time detection signal to instantly adjust the angle of the guide plate 9, which enables the cheese products to be automatically, quickly and accurately guided to different paths. The first and second endless conveyor belts 5 are driven by the same drive motor 11 through the transmission mechanism to ensure that the two run strictly synchronously. The inclined guide groove 7 provides a smooth transition channel from the tail end of the first conveyor belt to the second conveyor belt, reducing the collision and impact of the cheese blocks during the sorting and falling process. The sorting action is carried out during the continuous operation of the conveyor belt. The process is completed in the line without stopping the machine, which ensures the smoothness of the production line and significantly improves the overall packaging efficiency. The actual angle of the guide plate 9 is continuously monitored by the angle sensor 41 integrated in the rotating shaft, and the data is fed back to the central controller 3 in real time. The visual inspection device 24 scans and analyzes the position, shape, surface defects or label integrity of the cheese before it enters the sorting area. The visual inspection is analyzed by the central controller 3 and a sorting instruction is issued. The first servo motor 10 is adjusted to drive the guide plate to the target angle. The dynamic sealing cooperation between the first rubber limiting ring 14 and the second rubber limiting ring 16 on the limiting rod 15 enables the storage card seat 17 to adaptively fine-tune the displacement during transportation. Combined with the vacuum The stable negative pressure adsorption of the suction cup 18 completely solves the problem of displacement of soft cheese packaging bags. The hydraulic cylinder 21 in the vacuum chamber 20 drives the sealing pressure plate 22 to press down, and its edge sealing airbag 23 is inflated to form a flexible and closed cavity. The synchronously integrated heating strip 42 realizes the integrated operation of vacuuming and heat sealing, while ensuring zero physical damage to the cheese, and improving the packaging qualification rate and single-piece processing time. The first transmission roller 27 is driven by the drive motor 11 to link the transmission belt 28 and the second transmission roller 29, and the rigid synchronous double-belt linear speed completely eliminates the sorting landing point deviation. The central controller 3 dynamically adjusts the angle of the guide plate 9, combined with the absolute synchronous operation of the double belts, so that the sorting action and the conveying rhythm are matched at the millisecond level. The design replaces electronic synchronization with mechanical hard connection, which significantly improves the anti-interference ability in high humidity and high load environments, and provides zero-error, high-compactness and strong stability technical guarantees for the continuous sorting and packaging of cheese. The shock-absorbing elastic sheet 31 embedded in the inner wall of the buffer guide slide 30 effectively attenuates the impact force of the cheese falling, avoiding deformation and damage of soft cheese. At the same time, the infrared radiation sensor 38 monitors the falling distance in real time. When the distance is less than the threshold, the central controller 3 immediately starts the third servo motor 37, and drives the diversion guide plate 33 to alternately deflect through the precise displacement of the moving block 35 in the arc groove 34, forcing the cheese to fall alternately into the left and right partitions of the second ring conveyor belt 5, eliminating the risk of accumulation from the source.

[0068] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A vacuum packaging machine for cheese processing, comprising a first endless conveyor belt (1), an automatic sorting mechanism and a central controller (3), characterized in that: An automatic sorting mechanism is provided at the tail end of the first endless conveyor belt (1), and a central controller (3) is provided on one side of the first endless conveyor belt (1); The four corners of the bottom of the first endless conveyor belt (1) are fixedly connected with vertical fixed legs (4), and the bottom of the inner wall of the fixed leg (4) is provided with a second endless conveyor belt (5), and the second endless conveyor belt (5) is located directly below the first endless conveyor belt (1); The automatic sorting mechanism comprises an inclined guide bracket (6) arranged at the rear end of the fixed leg (4), a guide groove (7) inclined toward the second endless conveyor belt (5) is provided inside the inclined guide bracket (6), a through hole (8) is provided at the front end of the top of the inclined guide bracket (6), a guide plate (9) is provided inside the through hole (8) via a rotating shaft, and a first servo motor (10) for driving the guide plate (9) to rotate is provided at the front end of the outer wall of the inclined guide bracket (6); The first endless conveyor belt (1) and the second endless conveyor belt (5) are synchronously driven by the same drive motor (11) through a transmission mechanism; The central controller (3) is connected to the first servo motor (10) and the drive motor (11) via signals to dynamically control the sorting angle of the guide plate (9).

2. The cheese processing vacuum packaging machine according to claim 1, characterized in that: An angle sensor (41) is integrated inside the rotating shaft of the guide plate (9), and the angle sensor (41) feeds back angle data to the central controller (3) in real time.

3. The cheese processing vacuum packaging machine according to claim 1, characterized in that: The surface of the first annular conveyor belt (1) is evenly provided with a plurality of limiting holes (13), the inner wall of the limiting hole (13) is fixedly connected to a group of first rubber limiting rings (14), the inner wall of the limiting hole (13) is movably connected to a limiting rod (15), the outer wall of the limiting rod (15) is movably connected to a second rubber limiting ring (16), and the second rubber limiting ring (16) is dynamically sealed with the first rubber limiting ring (14), the top of the limiting rod (15) is vertically fixedly installed with a storage card seat (17), the top of the storage card seat (17) is embedded with a vacuum suction cup (18), one end of the vacuum suction cup (18) is connected to a vacuum generator (19) through a flexible pipe, and the vacuum generator (19) is arranged on the outer wall of the storage card seat (17).

4. The cheese processing vacuum packaging machine according to claim 1, characterized in that: The invention also includes a vacuum chamber (20) arranged in the middle of the top of the first endless conveyor belt (1), a hydraulic cylinder (21) is arranged in the middle of the top of the vacuum chamber (20), an output end of the hydraulic cylinder (21) passes through the top of the vacuum chamber (20) and is installed with a sealing pressure plate (22), a sealing air bag (23) and a heating strip (42) are arranged on the edge of the bottom of the sealing pressure plate (22), a vacuum pump (39) is arranged on the side wall of the vacuum chamber (20), and the vacuum pump (39) is opened and closed by the solenoid valve (40) controller. When the vacuum chamber (20) is started, the hydraulic cylinder (21) drives the sealing pressure plate (22) to press down to the surface of the storage seat (17), and the sealing air bag (23) is inflated to form a sealed cavity, and then the vacuum pump (39) is evacuated.

5. The cheese processing vacuum packaging machine according to claim 4, characterized in that: A visual detection device (24) is provided above the first endless conveyor belt (1) between the vacuum chamber (20) and the automatic sorting mechanism, and the visual detection device (24) is connected to the central controller (3) via a signal to identify the position and shape of the cheese in real time.

6. The cheese processing vacuum packaging machine according to claim 1, characterized in that: The transmission mechanism comprises a connecting frame (25) mounted on the front end of one side of the first endless conveyor belt (1), a driving motor (11) being mounted on the inner wall of the connecting frame (25), a first transmission roller (27) being mounted on the output end of the driving motor (11), one end of the first transmission roller (27) passing through one side of the first endless conveyor belt (1) and being connected to the active roller of the first endless conveyor belt (1), a transmission belt (28) being mounted on the outer wall of the first transmission roller (27), a second transmission roller (29) being mounted on the other end of the outer wall of the transmission belt (28), one end of the second transmission roller (29) passing through one side of the fixed leg (4) and one side of the second endless conveyor belt (5) and being connected to the active roller of the first endless conveyor belt (1).

7. The cheese processing vacuum packaging machine according to claim 1, characterized in that: A buffer guide chute (30) is provided above the feed end of the second endless conveyor belt (5), the top of the buffer guide chute (30) is connected to the outlet end of the guide groove (7), and the bottom thereof extends to the bearing surface of the second endless conveyor belt (5). A shock-absorbing elastic sheet (31) is embedded in the inner wall of the buffer guide chute (30) for attenuating the impact force when the cheese falls.

8. The cheese processing vacuum packaging machine according to claim 7, characterized in that: The outlet end of the buffer material guide slide (30) is provided with a dynamic diversion mechanism (32), which includes a group of diversion guide plates (33) horizontally arranged on both sides of the end of the buffer material guide slide (30) through hinges, and a group of arc-shaped grooves (34) are opened at the outlet end of the top of the buffer material guide slide (30). The inner wall of the arc-shaped groove (34) is movably connected to a moving block (35), and the top of the moving block (35) is fixedly connected to one end of the bottom of the diversion guide plate (33).

9. The cheese processing vacuum packaging machine according to claim 7, characterized in that: A third servo motor (37) is installed on both sides of the bottom of the buffer guide slide (30), and the output end of the third servo motor (37) passes through the buffer guide slide (30) and is connected to the other end of the bottom of the diversion guide plate (33). An infrared counter-radiation sensor (38) is provided at the entrance of the buffer guide slide (30). The infrared counter-radiation sensor (38) monitors the falling distance of the cheese in real time. When the distance is less than a set threshold, the central controller (3) starts the third servo motor (37) to adjust the rotation of the diversion guide plate (33) so that the cheese falls alternately into the left and right partitions of the second ring conveyor belt (5).

10. The method for using a vacuum packaging machine for cheese processing according to claim 9, characterized in that: The working steps of the cheese processing vacuum packaging machine are as follows: S1, the central controller (3) starts the drive motor (11), and the drive motor (11) drives the first circular conveyor belt (1) and the second circular conveyor belt (5) synchronously through the transmission mechanism to move the packaging bag containing the cheese block through the first circular conveyor belt (1) to the rear end; S2. When the cheese block approaches the tail end of the first endless conveyor belt (1), the central controller (3) determines whether the cheese block is a "qualified product" or a "rejected product" according to a preset sorting standard; S3, the cheese block is a "qualified product": the central controller (3) sends a signal to the first servo motor (10), and the first servo motor (10) drives the guide plate (9) to rotate so that the cheese block moves on the second circular conveyor belt (5); The cheese block is a "rejected product": the central controller (3) sends a signal to the first servo motor (10), which does not adjust the angle of the guide plate (9), so that the cheese block is discharged through the inclined guide bracket (6); S4, the qualified cheese block slides out of the guide groove (7) and enters the buffer guide slide (30), and the cheese block slides down the buffer guide slide (30). During the sliding process, the cheese block contacts the shock-absorbing elastic sheet (31) embedded in the inner wall of the buffer guide slide (30), and the impact force of the cheese block falling is effectively attenuated, thereby preventing the cheese from being damaged and deformed due to collision; S5. At the entrance of the buffer guide slide (30), the infrared radiation sensor (38) monitors the distance between the cheese blocks sliding down continuously in real time; S6. The central controller (3) immediately starts the third servo motor (37), and drives the diversion guide plate (33) to alternately deflect through the precise displacement of the moving block (35) in the arc groove (34), forcing the cheese to fall alternately into the left and right partitions of the second ring conveyor belt (5), eliminating the risk of accumulation at the source.

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