A paper tube moon cake packaging mechanism and a method of using the same

Abstract

This invention discloses a paper tube mooncake packaging mechanism and its usage method, relating to the packaging field. It includes a processing frame, a transmission component, a lead screw conveyor module, a paper feeding and cutting component, a station switching component, a folding component, and a pressing component. The folding component's bonding plate pre-bends the front and rear ends of the relatively hard paper tube to overcome the initial springback force of the material. Utilizing the pressing soft blocks in the pressing component, the curved surface of the mooncake is wrapped and sealed by elastic deformation, effectively solving the problems of difficult shaping and easy edge curling of rigid paper tubes. A rotating frame structure driven by a third drive motor has at least three packaging frames installed on it, enabling parallel operations of filling, folding, and unloading. When one station is performing folding and pressing operations, another station is simultaneously filling, and the third station is unloading, eliminating the waiting time of traditional linear modules.

Description

Technical Field

[0001] This invention relates to the field of packaging, and in particular to a paper tube mooncake packaging mechanism and its usage method. Background Technology

[0002] In the current mooncake packaging industry, using paper tubes as the outer packaging of mooncakes is a common packaging method. Paper tubes are usually made of special paper with a certain thickness and hardness, rolled into shape.

[0003] In the existing technology, paper tube packaging mostly adopts semi-automatic mechanical packaging. The paper tube material has high hardness and strong resilience. The folding mechanism of the existing equipment is mostly suitable for soft film. When facing paper tubes, conventional pressing methods can easily cause the paper to tear.

[0004] Existing technologies mostly use rigid grippers or vacuum suction cups for workstation transfer. Rigid grippers are very easy to squeeze and deform the pastry, while vacuum suction cups are prone to dropping material when gripping mooncakes with uneven surfaces or oily textures, resulting in a low yield rate.

[0005] Furthermore, in order to achieve continuous operation, it is necessary to switch between multiple workstations such as filling, folding, and unloading. Traditional linear reciprocating material handling cannot meet the needs of high-speed mass production.

[0006] Therefore, we propose a paper tube mooncake packaging mechanism and its usage method to solve the above problems. Summary of the Invention

[0007] The purpose of this invention is to provide a paper tube mooncake packaging mechanism and its usage method to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a paper tube mooncake packaging mechanism, comprising: The processing frame is equipped with a packaging paper placement platform and an installation platform on its top. A transmission component, which is mounted on top of the processing frame; A lead screw conveyor module is vertically installed inside the processing frame, and the output end of the lead screw conveyor module is connected to a mooncake placement seat. A paper feeding and cutting assembly, comprising a support frame and a fixing frame mounted on a mounting table, for feeding packaging paper; A workstation switching component is mounted on a mounting platform, including a support frame and a rotating frame, on which at least three packaging frames are mounted, and mooncakes are held in the packaging frames; The folding assembly is configured in two sets and symmetrically distributed on both sides of the workstation switching assembly. The folding assembly includes a bonding plate that matches the curvature of the side of the mooncake. A pressing assembly, which is located on one side of the workstation switching assembly, includes a pressing block for pressing the end of the packaging paper onto the outer periphery of the mooncake.

[0009] Preferably, the transmission assembly includes two sets of fixed profile frames, with a conveyor roller rotatably connected between the two sets of fixed profile frames. A conveyor belt is fitted onto the conveyor roller, and multiple partitions are equidistantly arranged on the outer peripheral wall of the conveyor belt. Adjacent partitions and the conveyor belt form a placement groove for placing mooncakes. One end of one of the conveyor rollers extends to the outside of the fixed profile frame and is connected to a drive shaft. A conveyor motor installed at the bottom of the fixed profile frame is connected to the drive shaft via a conveyor belt. Side baffles are also provided on both sides of the fixed profile frame to prevent mooncakes from falling.

[0010] Preferably, the packaging paper placement platform has a feeding port for the mooncake placement seat to pass through, and two sets of first positioning plates are provided between the packaging paper placement platform and the mounting platform. The first positioning plates are located on the front and rear sides of the feeding port and have a gap between them and the packaging paper placement platform for the packaging paper to pass through. The mounting platform has a feeding port corresponding to the feeding port, and two sets of second positioning plates for guiding the packaging paper are hinged at the feeding port.

[0011] Preferably, the support frame is provided with an unwinding roller, a guide roller, a transition roller, a guide roller and a main drive roller. One side of the support frame is also provided with a paper pressing roller for pressing the packaging paper above the guide roller. The other side of the support frame is equipped with a first drive motor. The output end of the first drive motor and the shaft end of the main drive roller are connected by a first drive belt.

[0012] Preferably, the fixed frame is provided with a pressing roller and a cooperating upper cutter and a lower cutter. A second drive motor is installed on one side of the fixed frame. The output end of the fixed frame and the shaft end of the pressing roller are connected by a second drive belt. A guide plate is provided inside the fixed frame. The pressing roller and the guide plate cooperate to clamp the packaging paper.

[0013] Preferably, the packaging frame is provided with an arc-shaped limiting plate, and the packaging frame is also provided with a two-way cylinder. The two output ends of the two-way cylinder are connected to a clamping plate with a sponge block on the inner side through a mounting base. A third drive motor is installed on one side of one of the support frames. The rotating frame is driven to rotate by the third drive motor. The packaging frame has a U-shaped opening structure, and its opening faces the feeding port of the mounting table.

[0014] Preferably, each set of the folding components further includes a first profile frame and a push cylinder, the push cylinder being mounted on the first profile frame and the bonding plate being mounted on the output end of the push cylinder.

[0015] Preferably, the pressing assembly includes a second profile frame installed on the front side of the mounting platform and a rotating profile frame hinged to it via a pivot. An upper hinge lug is fixedly installed on the upright arm of the rotating profile frame. The upper hinge lug is rotatably connected to the rotating rod of the second profile frame via a pin. A mounting plate is fixedly installed at the front end of the rotating profile frame. The pressing block is installed at the front end of the mounting plate. A mounting lug is fixed on the mounting platform. An electric telescopic rod is hinged to the mounting lug. The output end of the electric telescopic rod is rotatably connected to a lower hinge lug. The lower hinge lug is installed below the rotating profile frame.

[0016] Preferably, it also includes a conveying assembly, which is installed on the processing frame and located on the unloading side of the workstation switching assembly. The conveying assembly includes a conveying platform installed on the processing frame. The conveying platform is provided with a docking plate for receiving finished mooncakes. Unloading frames are provided on both sides of the docking plate at an angle downward. The conveying platform is provided with a third profile frame and a limiting frame rotatably connected to the third profile frame via a rotating shaft. An adjusting telescopic rod for adjusting the angle of the limiting frame is hinged between the third profile frame and the limiting frame.

[0017] A method of using a paper tube mooncake packaging mechanism includes the following steps: S1: Material preparation and paper feeding. The rolled tubular packaging paper is installed on the unwinding roller. The packaging paper is pulled around the guide roller, transition roller, guide roller and main drive roller in sequence, and after passing through the fixed frame, it is laid flat at the feeding port of the packaging paper placement table. S2: Feeding and lifting. Place the mooncakes to be packaged at intervals on the conveyor belt of the transmission component. Start the conveyor motor to transport the mooncakes to the mooncake placement seat. The screw conveyor module drives the mooncake placement seat to move vertically upward, causing the mooncakes to pass through the feeding port and lift the packaging paper. S3: Clamping, the screw conveyor module continues to drive the mooncake to the workstation switching component, so that the mooncake is in the limiting plate of the packaging frame. The bidirectional cylinder drives the two sets of clamping plates to move towards each other, and the mooncake and the wrapping paper are flexibly clamped and fixed by the sponge block. S4: Station switching, the third drive motor drives the rotating frame to rotate around the support frame by a preset angle, switching the mooncake that has been clamped from the filling station to the folding and pressing station, and switching the next empty packaging frame to the filling station; S5: Folding and pressing. When the packaging frame carrying the mooncake rotates between the two sets of folding components, the cylinder drives the bonding plate to move towards the center of the mooncake, folding the front and rear ends of the packaging paper inward to cover the outer perimeter of the mooncake. The pressing soft block flips upward to tightly press the end of the packaging paper onto the curved surface of the mooncake. S6: Unloading and Cycling. The third drive motor drives the rotating frame to rotate, switching the finished mooncakes to the unloading station. The double-acting cylinder depressurizes, causing the clamping plate to loosen. The finished mooncakes fall onto the docking plate of the conveying component, and then return to execute S2 to S6 to start the next cycle.

[0018] The technical effects and advantages of this invention are as follows: 1. The front and rear ends of the paper tube with high rigidity are pre-bent using the bonding plate of the folding component to overcome the initial rebound force of the material. Then, the pressing soft block in the pressing component is used to wrap and seal the curved surface of the mooncake by means of elastic deformation, which effectively solves the problems of hard paper tubes being difficult to shape and easy to curl edges.

[0019] 2. Unlike traditional rigid clamps that clamp from top to bottom or left to right, this product features a limiting plate inside the packaging frame that matches the curvature of the mooncake. Combined with a sponge block clamping plate driven by a two-way cylinder, the back of the mooncake is supported by the rigid limiting plate at the moment of clamping, while the sides are provided with flexible damping force by the sponge blocks. This three-point positioning method ensures stability during high-speed rotation and handling, while avoiding the risk of the mooncake cracking due to rigid compression.

[0020] 3. The rotating frame structure driven by a third drive motor is used, and at least three packaging frames are installed on the rotating frame, realizing parallel operation of filling, folding and unloading. When one station is performing folding and pressing operations, another station is simultaneously filling and the third station is unloading. This station switching mode eliminates the waiting time of traditional linear modules.

[0021] 4. By setting up multiple sensors such as feeding detection, arrival detection, clamping confirmation, and station origin, the screw module will only start when the arrival detection sensor confirms that the mooncake has completely entered the placement seat, and the rotating frame will only rotate when the clamping confirmation sensor sends a feedback signal. This effectively avoids malfunctions and equipment collisions, and greatly reduces the failure rate and debugging difficulty.

[0022] 5. The bonding plate and pressing block in the mechanism are both designed to be detachable. For mooncakes of different diameters and heights, the machine model can be quickly switched by simply replacing the corresponding parts and adjusting the telescopic rod, which meets the production needs of small batches and multiple varieties of mooncakes. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the transmission component structure of the present invention; Figure 3 This is a schematic diagram of the installation of the lead screw conveyor module and the processing frame of the present invention; Figure 4 This is a schematic diagram of the processing frame table structure of the present invention; Figure 5 This is a schematic diagram of the paper feeding and cutting assembly structure of the present invention; Figure 6 This is a schematic diagram of the paper feeding and cutting assembly of the present invention from another perspective; Figure 7This is a schematic diagram of the overall structure of the workstation switching component, folding component, and pressing component of the present invention; Figure 8 This is a schematic diagram showing the cooperation between the workstation switching component and the conveying component of the present invention; Figure 9 This is a schematic diagram of the packaging paper placement platform and mounting platform of the present invention; Figure 10 This is a schematic diagram of the workstation switching component structure of the present invention; Figure 11 This is a schematic diagram of the bidirectional cylinder and clamping plate structure of the present invention; Figure 12 This is a schematic diagram of the folding component structure of the present invention; Figure 13 This is a schematic diagram of the pressing component structure of the present invention; Figure 14 This is a schematic diagram of the conveying component structure of the present invention.

[0024] In the diagram: 1. Processing frame; 11. Packaging paper placement platform; 111. Feeding port; 112. First positioning plate; 12. Mounting platform; 121. Support rod; 122. Second positioning plate; 113. Guide port; 14. Support plate; 2. Conveying assembly; 21. Fixed profile frame; 22. Conveying roller; 23. Conveying belt; 24. Partition; 25. Side baffle; 26. Conveying motor; 27. Conveying belt; 3. Screw conveyor module; 31. Mooncake placement seat; 4. Supporting frame; 41. Unwinding roller; 42. Guide roller; 43. Transition roller; 44. Guide roller; 45. Main drive roller; 46. Pressing roller; 47. First drive motor; 48. First drive belt; 5. Fixed frame; 51. Lower cutter; 52. Upper cutter; 53. Guide plate; 54. Pressure roller; 55. 56. Second drive motor; 6. Second drive belt; 7. Station switching assembly; 8. Support frame; 9. Rotating frame; 10. Third drive motor; 11. Packaging frame; 12. Limiting plate; 13. Two-way cylinder; 14. Mounting base; 15. Clamping plate; 16. Sponge block; 17. Folding assembly; 18. First profile frame; 19. Pushing cylinder; 10. Bonding plate; 11. Pressing assembly; 12. Second profile frame; 13. Rotating profile frame; 14. Upper hinge ear; 15. Mounting plate; 16. Pressing soft block; 17. Electric telescopic rod; 18. Mounting ear; 19. Lower hinge ear; 20. Conveying assembly; 19. Conveying platform; 10. Support column; 11. Connecting plate; 12. Unloading frame; 13. Third profile frame; 14. Limiting frame; 15. Adjustable telescopic rod. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] This invention provides, for example Figures 1-14 The paper tube mooncake packaging mechanism and its usage method shown include a processing frame 1, a transmission component 2, a screw conveyor module 3, a paper feeding and cutting component, a station switching component 6, a folding component 7, and a pressing component 8; The system includes a processing frame 1, inside which a lead screw conveyor module 3 is installed. The lead screw conveyor module 3 is vertically distributed, and the output end of the lead screw conveyor module 3 is connected to a mooncake placement seat 31. The mooncake placement seat 31 is located at the top plane of the processing frame 1, and the upper surface of the mooncake placement seat 31 has an arc-shaped groove that matches the shape of the mooncake. The machining frame 1 has an integrated electrical control cabinet for controlling the timing logic of each actuator.

[0027] The transmission component 2 is installed on the top plane of the processing frame 1, and the end of the transmission component 2 is set corresponding to the mooncake placement seat 31. The transmission component 2 includes two sets of fixed profile frames 21, and a conveyor roller 22 is rotatably connected between the two sets of fixed profile frames 21. A conveyor belt 23 is sleeved on the outer peripheral wall of the conveyor roller 22. Multiple partitions 24 are evenly arranged on the outer peripheral wall of the conveyor roller 22. The partitions 24 are used to divide the conveyor belt 23 into multiple placement slots, and the placement slots are used to place mooncakes. The placement slot is set to correspond to the mooncake placement seat 31. Two sets of conveyor rollers 22 drive the conveyor belt 23 through friction, thereby conveying the mooncakes in the placement slot formed by the partition 24 and the conveyor belt 23 until the mooncakes are conveyed to the mooncake placement seat 31. The mooncakes are positioned and placed in conjunction with the arc-shaped groove on the mooncake placement seat 31. The arc-shaped groove can pre-position the mooncakes to prevent them from slipping during the lifting process. Preferably, one end of one of the conveying rollers 22 is provided with a drive shaft that passes through the fixed profile frame 21, and a conveying motor 26 is installed at the bottom of the fixed profile frame 21. Both the output end of the conveying motor 26 and the outer peripheral wall of the drive shaft that passes through the fixed profile frame 21 are fitted with pulleys, and a conveying belt 27 is connected to the two pulleys for transmission. Specifically, when it is necessary to control the conveyor belt 23 to transport mooncakes, the conveyor motor 26 is started to drive the pulley installed at its output end to rotate. This causes the conveyor belt 27 on the outer peripheral wall of the pulley to drive the pulley sleeved on the outer peripheral wall of the transmission shaft of the fixed profile frame 21. At this time, the transmission shaft drives the conveyor roller 22 to rotate between the two sets of fixed profile frames 21. Under the rotation of the conveyor roller 22, the conveyor roller 22 drives the conveyor belt 23 and the partition plate 24 on the outer peripheral wall of the conveyor belt 23 to transport the mooncakes. When the transmission of one set of partition plate 24 and the placement groove of the conveyor belt 23 has completely transported the mooncake to the mooncake placement seat 31, the conveyor motor 26 stops driving, and the transmission of the conveyor belt 23 stops, until the screw conveyor module 3 drives the mooncake placement seat 31 to transport the mooncake to the workstation switching component 6 for clamping. The screw conveyor module 3 controls the mooncake placement seat 31 to reset, and then the conveyor motor 26 drives the mooncake to be transported again. Preferably, side baffles 25 are installed on both sides of the fixed profile frame 21. The side baffles 25 are located on both sides of the conveyor belt 23 and are used to cover both sides of the conveyor belt 23 to prevent the mooncakes from falling off the conveyor roller 22.

[0028] A packaging paper placement platform 11 is provided on the processing frame 1. A feeding port 111 is provided on the packaging paper placement platform 11 corresponding to the mooncake placement seat 31. The feeding port 111 allows the mooncake placement seat 31 to move upward. A support plate 14 is installed between the packaging paper placement platform 11 and the processing frame 1. The support plate 14 is used to support the packaging paper placement platform 11. An installation platform 12 is provided directly above the packaging paper placement platform 11. Two sets of first positioning plates 112 are installed below the installation platform 12. The first positioning plates 112 are located on the front and rear sides of the feeding port 111, and there is a gap between the first positioning plates 112 and the packaging paper placement platform 11 for placing packaging paper. The first positioning plates 112 are used to limit the packaging paper. By cooperating with the first positioning plates 112 on both sides, the packaging paper is folded so that the packaging paper covers the outer periphery of the mooncake. The packaging paper placement platform 11 has a guide opening 113 on one side corresponding to the fixed frame 5. The guide opening 113 is correspondingly set with the guide plate 53 and is used to guide the packaging paper to be transported onto the packaging paper placement platform 11. The paper feeding and cutting assembly includes a support frame 4 and a fixed frame 5 mounted on a mounting platform 12. A unwinding roller 41 is rotatably connected to one side of the support frame 4. The unwinding roller 41 is used to mount the packaging paper tube. Multiple sets of guide rollers 42 and a set of transition rollers 43 are rotatably connected to one side of the support frame 4. The transition roller 43 is located below the guide rollers 42. The packaging paper is attached to the upper surface of the guide rollers 42 and the packaging paper is attached downward to the lower surface of the transition rollers 43 for guiding the packaging paper. A guide roller 44 and a main drive roller 45 are rotatably connected to one side of the support frame 4, and a gap is provided between the guide roller 44 and the main drive roller 45 for the packaging paper to pass through. One end of the main drive roller 45 extends outward through the support frame 4, and a first drive motor 47 is installed on the other side of the support frame 4. Both the outward-extending end of the main drive roller 45 and the output end of the first drive motor 47 are fitted with pulleys, and the outer peripheral walls of the two sets of pulleys are fitted with a first drive belt 48. By driving the first drive motor 47, the pulley and the first drive belt 48 cooperate to drive the main drive roller 45 to rotate on the support frame 4. Since the packaging paper passes through the lower surface of the transition roller 43 and then passes between the guide roller 44 and the main drive roller 45, and a paper pressing roller 46 is provided on one side of the support frame 4, the paper pressing roller 46 is used to press the packaging paper drawn out from the guide roller 44 and the main drive roller 45, so that the packaging paper adheres to the top of the guide roller 44 and adheres to the lower surface of the main drive roller 45. Under the active rotation of the main drive roller 45, the main drive roller 45 drives the packaging paper to be conveyed. Specifically disclosed, the packaging paper attached to the lower surface of the pressure roller 46 passes through the fixed frame 5, and the packaging paper exits from the fixed frame 5 onto the packaging paper placement table 11, and is located below the first positioning plate 112. A guide plate 53 is provided in the fixed frame 5 for placing the packaging paper. A pressure roller 54 is rotatably connected in the fixed frame 5, and the packaging paper is pressed between the guide plate 53 and the pressure roller 54. A second drive motor 55 is installed on one side of the fixed frame 5, and one end of the pressure roller 54 extends outward through that side of the fixed frame 5. Pulleys are sleeved on the outer end of the pressure roller 54 and the output end of the second drive motor 55. A second drive belt 56 is sleeved on the outer peripheral wall of the two pulleys. By driving the second drive motor 55, the pressure roller 54 is driven to rotate under the cooperation of the pulleys and the second drive belt 56, so that the packaging paper pressed between the pressure roller 54 and the guide plate 53 is transferred. Furthermore, an upper cutter 52 and a lower cutter 51 are provided at the packaging paper outlet on the fixed frame 5. The packaging paper passes through the upper cutter 52 and the lower cutter 51. The upper cutter 52 is fixed in the fixed frame 5, and the lower cutter 51 is slidably disposed in the fixed frame 5. Specifically disclosed, an electric push rod is installed at the end of the lower cutter 51, which is electrically driven to move the lower cutter 51 to the upper cutter 52 to cut the packaging paper; When the packaging paper is fed through the fixed frame 5 onto the packaging paper placement table 11, and the packaging paper placement table 11 completely covers the feeding port 111, the lower cutter 51 is driven by the electric push rod to cooperate with the upper cutter 52 to cut the packaging paper.

[0029] Preferably, a negative pressure adsorption hole is provided at the outlet of the fixed frame 5 to adsorb the front end of the paper at the moment of cutting, so as to ensure the accurate position of the next paper feed.

[0030] Specifically disclosed, the mounting platform 12 is provided with a feeding port corresponding to the feeding port 111, and two sets of support rods 121 are hinged at the feeding port, located on the front and rear sides of the feeding port of the mounting platform 12. They have the same function as the first positioning plate 112, which is to cover the front and rear sides of the packaging paper with the mooncake under the action of the second positioning plate 122. Priority is given that when the lead screw conveyor module 3 drives the mooncake placement seat 31 to move to the set maximum stroke, the mooncake placement seat 31 pushes the mooncake between the two sets of second positioning plates 122. At this time, the wrapping position of the packaging paper is limited, and then the work station switching component 6 clamps the packaging paper and the mooncake at the same time.

[0031] The workstation switching assembly 6 includes two sets of support frames 61 fixedly installed on the mounting platform 12. The two sets of support frames 61 are respectively located on the outer side of the corresponding second positioning plate 122. A rotating frame 62 is rotatably connected between the two sets of workstation switching assemblies 6. The rotating frame 62 rotates with the workstation switching assembly 6 through bearings. At least three sets of packaging frames 64 are installed on the workstation switching assembly 6. The packaging frame 64 has a U-shaped opening structure, and its opening faces the feeding port on the mounting platform 12. A limiting plate 641 for placing mooncakes is provided in the packaging frame 64, which matches the outer curvature of the mooncake.

[0032] A bidirectional cylinder 65 is installed on the packaging frame 64. Mounting seats 651 are installed on both output ends of the bidirectional cylinder 65. The two sets of mounting seats 651 are located on the upper and lower sides of the limiting plate 641, and clamping plates 66 are installed on the mounting seats 651. Sponge blocks 661 are glued to one side of the two sets of clamping plates 66 symmetrically. The sponge blocks 661 are used to buffer the pressure when clamping the mooncake and prevent the mooncake from deforming.

[0033] Specifically, when the screw conveyor module 3 is started and pushes the mooncake placement seat 31 and the mooncake on it to move vertically, the openings of the packaging frame 64 and the limiting plate 641 face the feeding port on the mounting platform 12. When the mooncake placement seat 31 moves the mooncake to its maximum stroke, the mooncake is in contact with the limiting plate 641. The bidirectional cylinder 65 is started, controlling the two mounting seats 651 to move towards each other, which in turn drives the two sets of clamping plates 66 and the sponge blocks 661 attached to them to move towards each other, thereby clamping the mooncake and the packaging paper covering the mooncake. Under the action of the two sets of clamping plates 66 and the limiting plate 641, a three-point fixed clamping is formed, ensuring the stability of the mooncake clamping.

[0034] A third drive motor 63 is installed on one side of one of the support frames 61. The output end of the third drive motor 63 is fixedly connected to the central shaft on one side of the rotating frame 62 through a coupling. The third drive motor 63 is used to drive the rotating frame 62 to rotate on the support frame 61, thereby driving the mooncakes held at the packaging frame 64 to switch positions.

[0035] After the workstation switching component 6 firmly clamps the mooncake, the screw conveyor module 3 drives the mooncake placement seat 31 to move vertically downward until the mooncake placement seat 31 is reset. Then, the third drive motor 63 drives the rotating frame 62 to rotate on the support frame 61 until the packaging frame 64 holding the mooncake rotates and is positioned between the two sets of folding components 7.

[0036] Two sets of folding components 7 are set on both sides of the workstation switching component 6. The folding components 7 are used to push the wrapping paper at the front and rear ends of the mooncake to stick to the opening of the wrapping paper on the mooncake, thereby completing the wrapping of the mooncake. The folding assembly 7 includes a first profile frame 71, on which a push cylinder 72 is installed. A bonding plate 73 is installed at the output end of the push cylinder 72. The two bonding plates 73 are located on the front and rear sides of the packaging frame 64, respectively, and the bonding plates 73 are set at the center of the limiting plate 641. The limiting plate 641 is opened into an arc surface that is consistent with the curvature of the side of the mooncake.

[0037] Specifically disclosed, when the mooncake held in the packaging frame 64 switches to the processing station between the two sets of folding components 7, the two sets of pushing cylinders 72 are driven to control the two sets of bonding plates 73 to move towards each other. At this time, the two sets of bonding plates 73 move towards the mooncake, thereby pushing the packaging paper at the front and rear ends of the mooncake, and then folding the packaging paper to cover the outer periphery of the mooncake. Includes a pressing component 8, which is located on one side of the workstation switching component 6, and is used to push the packaging paper covering the outer periphery of the mooncake to seal it; The pressing assembly 8 includes a second profile frame 81 installed on the front side of the mounting platform 12, and a rotating profile frame 82 is rotatably connected to the second profile frame 81 via a rotating shaft; A mounting plate 83 is fixedly installed at the front end of the rotating profile frame 82. The mounting plate 83 is an elastic metal plate. A pressing soft block 84 is bonded to the front end of the mounting plate 83. The pressing soft block 84 is made of silicone and its end face is an arc shape that matches the outer circumference of the mooncake. Preferably, the pressing soft block 84 is made of food-grade liquid silicone. During the pressing process, the pressing soft block 84 has a certain elastic deformation allowance, which is used to tightly adhere the packaging paper to the curved surface of the mooncake and complete the sealing.

[0038] After the folding component 7 pushes and folds the packaging paper at both ends of the mooncake to cover the mooncake, the rotating profile frame 82 rotates on the second profile frame 81, causing the rotating profile frame 82 to drive the mounting plate 83 and the pressing soft block 84 to rotate as well. When the rotating profile frame 82 rotates and causes the mounting plate 83 to correspond with the pressing soft block 84, the pressing soft block 84 adheres to the outer periphery of the mooncake packaging paper. Then, under the action of the pressing soft block 84, the end of the packaging paper is pressed to the outer periphery of the mooncake, and the packaging of the mooncake is completed. An upper hinge lug 821 is fixedly installed on the upright arm of the rotating profile frame 82. The upper hinge lug 821 is rotatably connected to the rotating rod of the second profile frame 81 via a pin. Mounting lug 86 is fixed on mounting platform 12. Electric telescopic rod 85 is hinged to mounting lug 86. The output end of electric telescopic rod 85 is rotatably connected to lower hinge lug 87. Lower hinge lug 87 is installed below rotating profile frame 82. Specifically, when it is necessary to push the rotating profile frame 82 to rotate in the second profile frame 81, and push the pressing soft block 84 to press the packaging paper against the outer periphery of the mooncake to complete the sealing of the mooncake packaging paper, at this time, the electric telescopic rod 85 is activated to extend and retract, applying a thrust to the lower hinge ear 87 and the rotating profile frame 82, so that the lower hinge ear 87 pushes the rotating profile frame 82 to rotate between the second profile frame 81, thereby causing the rotating profile frame 82 to drive the mounting plate 83 and the pressing soft block 84 to rotate along with the rotating profile frame 82, so that the pressing soft block 84 rotates from bottom to top. With the rotation of the pressing soft block 84, it pushes the mooncake packaging paper to gradually press against the outer periphery of the mooncake, thereby completing the sealing of the packaging paper and completely covering the mooncake.

[0039] After pressing is completed, the electric telescopic rod 85 retracts, the pressing component 8 resets, and then the folding component 7 folds and wraps the mooncake. At the same time, when the pressing component 8 is pressing and closing, the transmission component 2 works with the screw conveyor module 3 to transport the mooncake. The mooncake passes through the packaging paper placement table 11 for initial wrapping with packaging paper, and then passes through the mooncake placement seat 31 through the mounting table 12 to transport the mooncake into the packaging frame 64. The bidirectional cylinder 65 at the packaging frame 64 is activated to control the two sets of clamping plates 66 and the sponge block 661 to clamp the mooncake and the packaging paper. Furthermore, the third drive motor 63 drives the rotating frame 62 to rotate, rotating the packaged mooncakes. At the same time, the packaging frame 64, which is holding the mooncakes and packaging paper, is rotated between the two sets of folding components 7. Under the action of the folding components 7 and the pressing components 8, the packaging paper is folded and closed. The next empty guide roller 42 is switched to the feeding station, and the cycle continues. At the same time, as the rotating frame 62 drives the completed mooncakes to rotate to the corresponding conveying component 9, the bidirectional cylinder 65 is controlled to release the clamping plate 66 at the packaging frame 64, so that the packaged mooncakes are not clamped and fixed. The conveying assembly 9 includes a conveying platform 91 on the processing frame 1, a support column 911 is installed between the conveying platform 91 and the processing frame 1, and a docking plate 92 corresponding to the packaging frame 64 is provided on the conveying platform 91. The docking plate 92 is used to receive the mooncakes packaged at the packaging frame 64. The docking plate 92 is equipped with a feeding frame 93 on both sides. The feeding frame 93 is set to a downward tilting state. When the packaged mooncake rolls from the docking plate 92 onto the feeding frame 93, it is guided to roll and be transported under the action of gravity. The conveying platform 91 is also equipped with two sets of adjustable telescopic rods 96. The two sets of third profile frames 94 are rotatably connected to the limit frame 95 through a rotating shaft. The side of the limit frame 95 is rotatably connected to the side of the corresponding third profile frame 94 with the adjustable telescopic rod 96. By controlling the extension and retraction of the adjustable telescopic rod 96, the limit frame 95 can be pushed to rotate along the rotating shaft between the third profile frames 94, thereby adjusting the distance between the limit frame 95 and the docking plate 92. This facilitates the restriction of mooncakes of different sizes, ensures the stability of the mooncakes between the limit frame 95 and the docking plate 92, and prevents them from falling.

[0040] When the size of the mooncake changes, the clamping of the mooncake by the two sets of clamping plates 66 can be adjusted by adjusting the stroke of the bidirectional cylinder 65. By replacing the bonding plate 73 installed at the output end of the push cylinder 72, the bonding plate 73 can be adapted to the mooncake of the corresponding size for folding and wrapping the mooncake packaging paper. By disassembling the mounting plate 83 on the rotating profile frame 82, the pressing soft block 84 can be disassembled and replaced with a suitable pressing soft block 84.

[0041] It also includes feed detection sensors, position detection sensors, limit sensors, clamping confirmation sensors, station origin sensors, cylinder position sensors, and material detection sensors.

[0042] The feed detection sensor is installed at the beginning of the transmission component 2. It is a fiber optic sensor used to detect whether mooncakes are entering. If no mooncakes are entered, the subsequent lifting action will not be triggered to prevent empty running.

[0043] The positioning sensor is installed at the end of the transmission assembly 2, directly opposite the mooncake placement seat 31. It is a through-beam photoelectric sensor. When the sensor signal is blocked, the PLC sends a signal to allow the lead screw conveyor module 3 to start only after confirming that the mooncake has completely entered the placement slot, thus preventing the lifting machine from crashing due to the mooncake not being in place.

[0044] Limit sensors are installed on the base and top of the lead screw conveyor module 3. They use magnetic switches to calibrate the zero point, ensuring that the height of each ascent is consistent and that the mooncakes can accurately pass through the feeding port 111 and align with the first positioning plate 112.

[0045] The clamping confirmation sensor is installed on the side of the packaging frame 64 or on the cylinder body of the bidirectional cylinder 65. It uses a magnetic switch to detect whether the bidirectional cylinder 65 is indeed clamped in place. Only after the clamping confirmation signal is returned is the third drive motor 63 allowed to rotate to prevent it from falling off during transportation.

[0046] The workstation origin sensor is installed on the support frame 61, corresponding to the rotation axis of the rotating frame 62. A proximity switch is used to accurately locate the rotation position of the rotating frame 62, ensuring that the packaging frame 64 is horizontal after rotation, which facilitates subsequent folding and pressing operations.

[0047] The cylinder position sensor is installed on the push cylinder 72 of the folding assembly 7 and the electric telescopic rod 85 of the pressing assembly 8. It uses a magnetic switch to monitor whether the folding plate is pushed into place and whether the pressing block is retracted, so as to ensure that the action sequence does not overlap or interfere with each other.

[0048] The material detection sensor is installed at the inlet of the docking plate 92 of the conveying assembly 9. It adopts a diffuse reflection photoelectric sensor to count the output. When a mooncake is detected passing through, it counts. If no material is detected for a long time, the system alarms to indicate that the material is stuck.

[0049] A method for using a paper tube mooncake packaging mechanism includes the following steps: S1: Material preparation and paper feeding. The rolled tubular packaging paper is installed on the unwinding roller 41 of the support frame 4. The packaging paper is pulled around the guide roller 42, transition roller 43, guide roller 44 and main drive roller 45 in sequence, and after passing through the fixed frame 5, it is laid flat at the feeding port 111 of the packaging paper placement table 11. The main drive roller 45 is driven to rotate by the first drive motor 47. The packaging paper is conveyed forward to a set length by friction. When the packaging paper completely covers the feeding port 111, the PLC controller controls the electric push rod to drive the lower cutter 51 to move upward, and cooperates with the upper cutter 52 to complete the cutting of the packaging paper.

[0050] S2: Feeding and Lifting. Place the mooncakes to be packaged at intervals on the conveyor belt 23 of the transmission component 2. Start the conveyor motor 26. Through the transmission cooperation between the pulley and the conveyor belt 27, drive the conveyor roller 22 to move the partition 24 and the mooncakes in the placement slot towards the mooncake placement seat 31. When the position detection sensor detects that the mooncake has completely entered the positioning area of ​​the mooncake placement seat 31, the PLC controller controls the screw conveyor module 3 to start, driving the mooncake placement seat 31 to move vertically upward, causing the mooncake to pass through the feeding port 111 and lift the packaging paper.

[0051] S3: Clamping. The screw conveyor module 3 continues to drive the mooncake to rise to the workstation switching component 6, so that the mooncake is embedded in the limiting plate 641 of the packaging frame 64. The bidirectional cylinder 65 drives the two sets of mounting seats 651 and clamping plates 66 to move towards each other. The mooncake and the covering packaging paper are flexibly clamped and fixed by the sponge block 661. After the clamping confirmation sensor feedback signal, the screw conveyor module 3 drives the mooncake placement seat 31 to reset.

[0052] S4: Workstation switching. The third drive motor 63 receives the clamping position signal and drives the rotating frame 62 to rotate around the support frame 61 by a preset angle. The mooncake that has been clamped is switched from the filling station to the folding and pressing station, and the next empty packaging frame 64 is switched to the filling station to wait for the next round of clamping.

[0053] S5: Folding and pressing. When the packaging frame 64 carrying the mooncake rotates between the two sets of folding components 7, the cylinder 72 drives the bonding plate 73 to move towards the center of the mooncake, folding the front and rear ends of the packaging paper inward to cover the outer periphery of the mooncake. The electric telescopic rod 85 extends, pushing the lower hinge ear 87 and the rotating profile frame 82 to rotate around the second profile frame 81, causing the mounting plate 83 and the pressing soft block 84 to flip upward. The elastic deformation of the pressing soft block 84 tightly presses the end of the packaging paper onto the curved surface of the mooncake, completing the sealing.

[0054] S6: Feeding and Cycling. After packaging, the third drive motor 63 drives the rotating frame 62 to rotate again, switching the finished mooncake to the feeding station. The bidirectional cylinder 65 depressurizes, the clamping plate 66 is released, and the finished mooncake falls freely onto the docking plate 92 of the conveying component 9, and rolls into the collection device along the inclined feeding frame 93. The material detection sensor records the output, and then the cycle from S2 to S6 begins again.

[0055] Furthermore, in step S2, if the feeding detection sensor does not detect a mooncake, the screw conveyor module 3 is prohibited from starting; in step S3, if the clamping confirmation sensor does not detect the clamping position signal within a preset time, the system triggers an alarm and stops; in step S4, the station origin sensor monitors the position of the rotating frame 62 in real time to ensure the horizontal accuracy of the packaging frame 64 after rotation.

[0056] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A paper tube mooncake packaging mechanism, characterized in that, include: The processing frame (1) is provided with a packaging paper placement platform (11) and an installation platform (12) on its top. The transmission component (2) is mounted on top of the processing frame (1); A screw conveyor module (3) is vertically installed inside the processing frame (1), and the output end of the screw conveyor module (3) is connected to a mooncake placement seat (31). The paper feeding and cutting assembly includes a support frame (4) and a fixing frame (5) mounted on a mounting table (12) for feeding packaging paper; The workstation switching component (6) is installed on the mounting platform (12) and includes a support frame (61) and a rotating frame (62). At least three packaging frames (64) are installed on the rotating frame (62), and the mooncakes are held in the packaging frames (64). The folding assembly (7) is configured in two sets and symmetrically distributed on both sides of the workstation switching assembly (6). The folding assembly (7) includes a bonding plate (73) that matches the curvature of the side of the mooncake. A pressing assembly (8) is disposed on one side of a station switching assembly (6) and includes a pressing block (84) for pressing the end of the packaging paper onto the outer periphery of the mooncake.

2. The paper tube mooncake packaging mechanism according to claim 1, characterized in that, The transmission assembly (2) includes two sets of fixed profile frames (21), and a conveyor roller (22) is rotatably connected between the two sets of fixed profile frames (21). A conveyor belt (23) is fitted on the conveyor roller (22). Multiple partitions (24) are equidistantly arranged on the outer peripheral wall of the conveyor belt (23). Adjacent partitions (24) and the conveyor belt (23) form a placement groove for placing mooncakes. One end of one of the conveyor rollers (22) extends to the outside of the fixed profile frame (21) and is connected to a drive shaft. A conveyor motor (26) installed at the bottom of the fixed profile frame (21) is connected to the drive shaft through a conveyor belt (27). Side baffles (25) are also provided on both sides of the fixed profile frame (21) to prevent mooncakes from falling.

3. The paper tube mooncake packaging mechanism according to claim 1, characterized in that, The packaging paper placement platform (11) is provided with a feeding port (111) through which the mooncake placement seat (31) passes. Two sets of first positioning plates (112) are provided between the packaging paper placement platform (11) and the mounting platform (12). The first positioning plates (112) are located on the front and rear sides of the feeding port (111) and there is a gap between them and the packaging paper placement platform (11) for the packaging paper to pass through. The mounting platform (12) is provided with a feeding port corresponding to the feeding port (111). Two sets of second positioning plates (122) for guiding the packaging paper are hinged at the feeding port.

4. The paper tube mooncake packaging mechanism according to claim 1, characterized in that, The support frame (4) is provided with an unwinding roller (41), a guide roller (42), a transition roller (43), a guide roller (44) and a main drive roller (45). One side of the support frame (4) is also provided with a paper pressing roller (46) for pressing the packaging paper on the guide roller (44). The other side of the support frame (4) is equipped with a first drive motor (47). The output end of the first drive motor (47) and the shaft end of the main drive roller (45) are connected by a first drive belt (48).

5. The paper tube mooncake packaging mechanism according to claim 1, characterized in that, The fixed frame (5) is provided with a pressing roller (54) and an upper cutter (52) and a lower cutter (51) that cooperate with each other. A second drive motor (55) is installed on one side of the fixed frame (5). The output end of the fixed frame (5) and the shaft end of the pressing roller (54) are connected by a second drive belt (56). A guide plate (53) is provided inside the fixed frame (5). The pressing roller (54) and the guide plate (53) cooperate with each other to clamp the packaging paper.

6. The paper tube mooncake packaging mechanism according to claim 1, characterized in that, The packaging frame (64) is provided with an arc-shaped limiting plate (641). The packaging frame (64) is also provided with a two-way cylinder (65). The two output ends of the two-way cylinder (65) are connected to a clamping plate (66) with a sponge block (661) on the inner side through a mounting base (651). A third drive motor (63) is installed on one side of one of the support frames (61). The rotating frame (62) is driven to rotate by the third drive motor (63). The packaging frame (64) has a U-shaped opening structure, and its opening faces the feeding port of the mounting platform (12).

7. The paper tube mooncake packaging mechanism according to claim 1, characterized in that, Each of the folding components (7) further includes a first profile frame (71) and a push cylinder (72), the push cylinder (72) being mounted on the first profile frame (71) and the bonding plate (73) being mounted on the output end of the push cylinder (72).

8. The paper tube mooncake packaging mechanism according to claim 1, characterized in that, The pressing assembly (8) includes a second profile frame (81) installed on the front side of the mounting platform (12) and a rotating profile frame (82) hinged to it via a pivot. An upper hinge ear (821) is fixedly installed on the upright arm of the rotating profile frame (82). The upper hinge ear (821) is rotatably connected to the rotating rod of the second profile frame (81) via a pin. A mounting plate (83) is fixedly installed at the front end of the rotating profile frame (82). The pressing soft block (84) is installed at the front end of the mounting plate (83). A mounting ear (86) is fixed on the mounting platform (12). An electric telescopic rod (85) is hinged to the mounting ear (86). The output end of the electric telescopic rod (85) is rotatably connected to a lower hinge ear (87). The lower hinge ear (87) is installed below the rotating profile frame (82).

9. A paper tube mooncake packaging mechanism according to claim 1, characterized in that, It also includes a conveying assembly (9), which is installed on the processing frame (1) and located on the unloading side of the workstation switching assembly (6). The conveying assembly (9) includes a conveying platform (91) installed on the processing frame (1). The conveying platform (91) is provided with a docking plate (92) for receiving finished mooncakes. The two sides of the docking plate (92) are provided with unloading frames (93) tilted downwards. The conveying platform (91) is provided with a third profile frame (94) and a limiting frame (95) rotatably connected to the third profile frame (94) through a rotating shaft. An adjusting telescopic rod (96) for adjusting the angle of the limiting frame (95) is hinged between the third profile frame (94) and the limiting frame (95).

10. A method of using a paper tube mooncake packaging mechanism, based on the paper tube mooncake packaging mechanism according to any one of claims 1-9, characterized in that, Includes the following steps: S1: Material preparation and paper feeding. The rolled tubular packaging paper is installed on the unwinding roller (41). The packaging paper is pulled around the guide roller (42), transition roller (43), guide roller (44) and main drive roller (45) in sequence, and then laid flat at the feeding port (111) of the packaging paper placement table (11) after passing through the fixed frame (5). S2: Feeding and lifting: Place the mooncakes to be packaged at intervals on the conveyor belt (23) of the transmission component (2), start the conveyor motor (26) to transport the mooncakes to the mooncake placement seat (31), and the screw conveyor module (3) drives the mooncake placement seat (31) to move vertically upward, causing the mooncakes to pass through the feeding port (111) and lift the packaging paper; S3: Clamping, the screw conveyor module (3) continues to drive the mooncake to rise to the workstation switching component (6), so that the mooncake is in the limiting plate (641) of the packaging frame (64), and the bidirectional cylinder (65) drives the two sets of clamping plates (66) to move towards each other, and the mooncake and the covering packaging paper are flexibly clamped and fixed by the sponge block (661). S4: Workstation switching, the third drive motor (63) drives the rotating frame (62) to rotate around the support frame (61) by a preset angle, switching the mooncake that has been clamped from the filling station to the folding and pressing station, and switching the next empty packaging frame (64) to the filling station; S5: Folding and pressing. When the packaging frame (64) carrying the mooncake rotates between the two sets of folding components (7), the cylinder (72) drives the bonding plate (73) to move towards the center of the mooncake, folding the front and rear ends of the packaging paper inward to cover the outer periphery of the mooncake. The pressing soft block (84) flips upward to tightly press the end of the packaging paper onto the curved surface of the mooncake. S6: Unloading and cycling. The third drive motor (63) drives the rotating frame (62) to rotate, switching the finished mooncake to the unloading station. The double-acting cylinder (65) releases pressure to loosen the clamping plate (66), and the finished mooncake falls onto the docking plate (92) of the conveying component (9). Then, it returns to execute S2 to S6 to carry out the next cycle.

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