An automated production line for skin-friendly diapers

Abstract

This invention relates to an automated production line for skin-friendly diapers, belonging to the field of diaper manufacturing technology. It includes a frame, a diaper shaping and pushing system, a diaper bag heat-sealing system, a bag opening system, a bag conveying system, and a bag return system, all mounted on the frame. The pushing direction of the diaper shaping and pushing system points towards the bag opening system. The diaper bag heat-sealing system is located between the diaper shaping and pushing system and the bag opening system. The bag opening system includes a bag lifting device, a bag pulling device, an upper bag opening clamping device, and a lower bag opening clamping device. The bag lifting device and the bag pulling device are arranged opposite to each other. The lower bag opening clamping device is installed below the bag pulling device. The bag conveying system is installed below the bag return system. The bag opening system is installed between the bag conveying system and the diaper bag heat-sealing system. The pushing direction of the bag return system points towards the diaper bag heat-sealing system, enabling automated diaper production.

Description

Technical Field

[0001] This invention relates to the field of diaper manufacturing technology, and in particular to an automated production line for skin-friendly diapers. Background Technology

[0002] An automated diaper production line is the core equipment that processes raw materials into diapers using automated equipment. It mainly includes key steps such as material preparation, spreading and cutting, component assembly, and finished product bagging.

[0003] The material handling system uses fully automated robotic arms to precisely cut and spread raw materials such as non-woven fabric and absorbent cores, achieving efficient separation and processing. The intelligent assembly line uses a full servo control system to complete processes such as waistband adhesion and hot pressing of elastic materials; some production lines support zero-waste processes. The quality inspection stage is equipped with metal detectors and laser inspection equipment, enabling 24-hour real-time monitoring to ensure defect-free products. A single production line can produce 500-600 diapers per minute, with some high-speed lines reaching 700-900 diapers per minute.

[0004] Existing diaper packaging machines open the packaging and push the entire stack of diapers in during the bagging process. However, when the entire stack of diapers is pushed in, the diapers may come into contact with the packaging bags, causing the packaging bags to shift and detach, resulting in the entire stack of diapers not being pushed in properly. Summary of the Invention

[0005] To overcome the technical defects of existing technologies, this invention provides an automated production line for skin-friendly diapers, which can automatically produce diapers.

[0006] The technical solution adopted in this invention is:

[0007] An automated production line for skin-friendly diapers includes a frame, a diaper shaping and pushing system, a diaper bag heat-sealing system, a bag opening system, a bag conveying system, and a bag return system, all mounted on the frame. The pushing direction of the diaper shaping and pushing system is towards the bag opening system. The diaper bag heat-sealing system is located between the diaper shaping and pushing system and the bag opening system. The bag opening system includes a bag lifting device, a bag pulling device, an upper bag opening clamping device, and a lower bag opening clamping device. The bag lifting device and the bag pulling device are arranged opposite to each other. The upper bag opening clamping device is mounted on the upper side of the bag lifting device, and the lower bag opening clamping device is mounted on the lower side of the bag pulling device. The bag conveying system is mounted on the lower side of the bag return system. The bag opening system is mounted on the lower side of the bag conveying system. Between the diaper bag heat sealing system and the diaper body push system, the pushing direction of the bag body push system is towards the diaper bag heat sealing system. The upper bag opening clamping device includes an upper pneumatic squeezing device and an upper eccentric clamping device. Both the upper pneumatic squeezing device and the upper eccentric clamping device are installed on the bag body lifting device. The upper pneumatic squeezing device is located above the upper eccentric clamping device. An upper bag seam is formed between the upper pneumatic squeezing device and the upper eccentric clamping device. An upper air blowing port pointing towards the upper bag seam is provided on the lower side of the upper pneumatic squeezing device. The upper eccentric clamping device includes several upper clamping wheels. Each upper clamping wheel is rotatably installed on the bag body lifting device in an eccentric manner. Each upper clamping wheel is deflected towards the side closer to the diaper shaping push system. A torsion spring is provided between the upper clamping wheel and the bag body lifting device to maintain the posture of the upper clamping wheel.

[0008] Preferably, the diaper shaping and pushing system includes two diaper shaping clamping devices arranged opposite to each other and a shaping pushing device that slides between the two diaper shaping clamping devices. Both the diaper shaping clamping devices and the shaping pushing device are mounted on the frame, and the pushing direction of the shaping pushing device is directed towards the bag opening system.

[0009] Preferably, the diaper bag heat sealing system includes an upper heat sealing device and a lower heat sealing device arranged opposite each other, and both the upper heat sealing device and the lower heat sealing device are mounted on the frame.

[0010] Preferably, the bag conveying system is a belt conveyor, and the conveying direction of the bag conveying system is away from the bag opening system.

[0011] Preferably, the bag push system includes a bag push device and a retraction avoidance device. The bag push device is slidably mounted on the frame, and the retraction avoidance device is mounted on the bag push device. The retraction avoidance device has a telescopic end pointing towards the bag conveying system, and the pushing direction of the bag push device points towards the diaper bag heat sealing system.

[0012] Preferably, the bag lifting device includes a lifting cylinder and a lifting plate. The lifting cylinder is mounted on the frame, the lifting plate is mounted on the output end of the lifting cylinder, and the upper bag opening clamping device is mounted on the lifting plate.

[0013] Preferably, the bag pull-down device includes a pull-down cylinder and a pull-down plate. The pull-down cylinder is mounted on the frame, the pull-down plate is mounted on the output end of the pull-down cylinder, and the lower bag opening clamping device is mounted on the lower side of the pull-down plate 422.

[0014] Preferably, two bag-filling side guards are installed on both sides of the bag-opening system, and each bag-filling side guard is slidably mounted on the frame.

[0015] The beneficial effects of this invention are:

[0016] The diaper shaping and pushing system pushes towards the bag opening system, pushing the arranged diapers towards it. The diaper bag heat sealing system is located between the diaper shaping and pushing system and the bag opening system. The bag opening system includes a bag lifting device, a bag pulling device, an upper bag opening clamping device, and a lower bag opening clamping device. The bag lifting device and the bag pulling device are arranged opposite each other. The upper bag opening clamping device is installed on the upper side of the bag lifting device, and the lower bag opening clamping device is installed on the lower side of the bag pulling device. When the diaper stack is pushed into the bag, it prevents the bag body from detaching from the bag lifting device and the bag pulling device. The bag conveying system is installed below the bag return system. The bag opening system is installed between the bag conveying system and the diaper bag heat sealing system to open the bag body. The pushing direction of the bag return system is towards the diaper bag heat sealing system, pushing the opening of the bag body towards the diaper bag heat sealing system to achieve heat sealing.

[0017] The upper bag opening clamping device includes an upper pneumatic squeezing device and an upper eccentric clamping device. Both the upper pneumatic squeezing device and the upper eccentric clamping device are installed on the bag lifting device. The upper pneumatic squeezing device is located above the upper eccentric clamping device, forming an upper bag opening between them. An upper air inlet is located below the upper pneumatic squeezing device, pointing towards the upper bag opening, and is connected to an air pump. The upper eccentric clamping device includes several upper clamping wheels, each rotatably mounted on the bag lifting device via an eccentric mechanism. Each upper clamping wheel deflects towards the side closest to the diaper shaping and pushing system. A torsion spring is provided between the upper clamping wheels and the bag lifting device to maintain the posture of the upper clamping wheels. To prevent excessive rotation of the upper clamping wheels, a limit pin is provided on the bag lifting device to limit the rotation limit of the upper clamping wheels. Before bagging, [the user / person / entity]... The worker opens the packaging bag and places the bag opening onto the bag lifting device and bag pulling device, keeping them far apart. This opens and secures the bag opening. After the entire stack of diapers is pushed in, the upper pneumatic compression device presses the packaging bag down towards the upper eccentric clamping device, pressing the bag against it. If the packaging bag slides away from the diaper shaping and pushing system, it causes the upper clamping wheel to rotate. As the upper clamping wheel deflects towards the diaper shaping and pushing system, it presses the packaging bag against the upper pneumatic compression device, thus clamping the bag between the upper pneumatic compression device and the upper eccentric clamping device. This prevents the bag from shifting and ensures the bag is securely fixed during diaper filling, guaranteeing smooth filling. Attached Figure Description

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

[0019] Figure 2 This is a schematic diagram of the second perspective structure of the present invention.

[0020] Figure 3 This is a schematic diagram of the third-view structure of the present invention.

[0021] Figure 4 A first-person view structural diagram of the bag-expanding system.

[0022] Figure 5 A schematic diagram of the structure after installing a pneumatic compression device on the bag-opening system.

[0023] Figure 6 This is a schematic diagram of the upper bag opening clamping device.

[0024] Figure 7 A schematic diagram of the structure after the bag opening system opens the packaging bag.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Rack;

[0027] 2. Diaper shaping and pushing system; 21. Diaper shaping and clamping device; 22. Shaping and pushing device;

[0028] 3. Diaper bag heat sealing system; 31. Upper heat sealing device; 32. Lower heat sealing device;

[0029] 4. Bag opening system; 41. Bag lifting device; 411. Lifting cylinder; 412. Lifting plate; 42. Bag pulling device; 421. Pulling cylinder; 422. Pulling plate; 43. Upper bag opening clamping device; 431. Upper pneumatic extrusion device; 4311. Upper air inlet; 432. Upper eccentric clamping device; 4321. Upper clamping wheel;

[0030] 5. Bag conveying system;

[0031] 6. Bag body pushback system; 61. Bag body pushback device; 62. Retreat and avoidance device;

[0032] 7. Side baffle device for bagging;

[0033] 8. Packaging bags. Detailed Implementation

[0034] The present invention will be further described below with reference to the accompanying drawings:

[0035] like Figure 1 — Figure 7 As shown, this embodiment provides an automated production line for skin-friendly diapers, including a frame 1, a diaper shaping and pushing system 2, a diaper bag heat sealing system 3, a bag opening system 4, a bag conveying system 5, and a bag return system 6, all mounted on the frame 1. The pushing direction of the diaper shaping and pushing system 2 is towards the bag opening system 4, pushing the arranged diapers towards the bag opening system 4. The diaper bag heat sealing system 3 is located between the diaper shaping and pushing system 2 and the bag opening system 4. The bag opening system 4 includes a bag lifting device 41, a bag pulling device 42, an upper bag opening clamping device 43, and a lower bag opening clamping device. The bag lifting device 41... The upper bag opening clamping device 43 is installed on the upper side of the bag lifting device 41, and the lower bag opening clamping device is installed on the lower side of the bag pulling device 42, opposite to the bag body pulling device 42. When the diaper pile is pushed into the bag body, it prevents the bag body of the packaging bag 8 from detaching from the bag body lifting device 41 and the bag body pulling device 42. The bag body conveying system 5 is installed on the lower side of the bag body push-back system 6. The bag body opening system 4 is installed between the bag body conveying system 5 and the diaper bag heat sealing system 3 to open the bag body of the packaging bag 8. The pushing direction of the bag body push-back system 6 is towards the diaper bag heat sealing system 3, pushing the opening of the bag body of the packaging bag 8 towards the diaper bag heat sealing system 3 to achieve heat sealing.

[0036] Specifically, the upper bag opening clamping device 43 includes an upper pneumatic compression device 431 and an upper eccentric clamping device 432. Both the upper pneumatic compression device 431 and the upper eccentric clamping device 432 are mounted on the bag lifting device 41. The upper pneumatic compression device 431 is located above the upper eccentric clamping device 432, forming an upper bag seam between them. The lower side of the upper pneumatic compression device 431 is provided with an upper air inlet 4311 pointing towards the upper bag seam. 4311 is connected to an air pump. The upper eccentric clamping device 432 includes several upper clamping wheels 4321. Each upper clamping wheel 4321 is rotatably mounted on the bag lifting device 41 in an eccentric manner. Each upper clamping wheel 4321 is deflected towards the side closer to the diaper shaping and pushing system 2. A torsion spring is provided between the upper clamping wheel 4321 and the bag lifting device 41 to maintain the posture of the upper clamping wheel 4321. In order to prevent the upper clamping wheel 4321 from over-rotating, the bag lifting device 41 is provided with a limit position to restrict the rotation of the upper clamping wheel 4321. Before bagging, the packaging bag 8 is manually opened, and the opening of the packaging bag 8 is placed on the bag lifting device 41 and the bag pulling device 42. The bag lifting device 41 and the bag pulling device 42 are moved away from each other, thereby opening and fixing the opening of the packaging bag 8. After the whole pile of diapers is pushed in, the upper pneumatic squeezing device 431 presses the packaging bag 8 down towards the upper eccentric clamping device 432, so that the packaging bag 8 is pressed on the upper eccentric clamping device 432. If the packaging bag 8 moves away from the diaper shaping and pushing system 2, the packaging bag 8 will not be able to move away from the diaper shaping and pushing system 2. As the packaging bag 8 slides, it drives the upper clamping wheel 4321 to rotate. Since the upper clamping wheel 4321 deflects towards the side closer to the diaper shaping and pushing system 2, when the upper clamping wheel 4321 rotates, it squeezes the packaging bag 8 towards the side of the upper pneumatic extrusion device 431. This causes the upper pneumatic extrusion device 431 and the upper eccentric clamping device 432 to clamp the packaging bag 8. The more the packaging bag 8 moves, the greater the clamping force becomes, preventing the packaging bag 8 from shifting. This ensures that the packaging bag 8 is firmly fixed when the diaper is being packaged, guaranteeing smooth packaging.

[0037] Opposite to the upper bag opening clamping device 43, the lower bag opening clamping device includes a lower pneumatic squeezing device and a lower eccentric clamping device. Both the lower pneumatic squeezing device and the lower eccentric clamping device are installed below the bag body pull-down device 42. The lower pneumatic squeezing device is located below the lower eccentric clamping device, and a lower bag seam is formed between the lower pneumatic squeezing device and the lower eccentric clamping device. The upper side of the lower pneumatic squeezing device is provided with a lower air blowing port pointing towards the lower bag seam, and the lower air blowing port is connected to an air pump. The lower eccentric clamping device includes several lower clamping wheels, each of which is rotatably mounted on the lower side of the bag body pull-down device 42 in an eccentric manner. Each lower clamping wheel is deflected towards the side closer to the diaper shaping and pushing system 2. A torsion spring is provided between the lower clamping wheel and the bag body pull-down device 42 to maintain the posture of the lower clamping wheel. In order to prevent the lower clamping wheel from rotating excessively, the bag body pull-down device 42 is provided with a limit position to restrict the rotation of the lower clamping wheel. Before bagging, the packaging bag 8 is manually opened and its opening is placed over the upper and lower bag seams. The bag lifting device 41 and the bag pulling device 42 are moved away from each other, thus opening and fixing the opening of the packaging bag 8. After the entire stack of diapers is pushed in, the lower pneumatic squeezing device presses the packaging bag 8 down toward the lower eccentric clamping device, so that the packaging bag 8 is pressed on the lower eccentric clamping device. If the packaging bag 8 slides away from the diaper shaping and pushing system 2, the packaging bag 8 drives the lower clamping wheel to rotate. Since the lower clamping wheel deflects toward the side closer to the diaper shaping and pushing system 2, when the lower clamping wheel rotates, the lower clamping wheel squeezes the packaging bag 8 toward the lower pneumatic squeezing device, thus making the lower pneumatic squeezing device and the lower eccentric clamping device clamp the packaging bag 8, preventing the packaging bag 8 from shifting, so that the packaging bag 8 is firmly fixed when the diapers are bagged, ensuring smooth bagging.

[0038] Specifically, the diaper shaping and pushing system 2 includes two diaper shaping clamping devices 21 arranged opposite each other and a shaping pushing device 22 that slides between the two diaper shaping clamping devices 21. Both the diaper shaping clamping devices 21 and the shaping pushing device 22 are mounted on the frame 1. The pushing direction of the shaping pushing device 22 is towards the bag opening system 4. After the two diaper shaping clamping devices 21 clamp the whole pile of diapers, the shaping pushing device 22 pushes the arranged diapers toward the bag opening system 4.

[0039] Specifically, the diaper bag heat sealing system 3 includes an upper heat sealing device 31 and a lower heat sealing device 32 arranged opposite to each other. Both the upper heat sealing device 31 and the lower heat sealing device 32 are mounted on the frame 1 to achieve heat sealing of the bag. The compression heat sealing of the upper heat sealing device 31 and the lower heat sealing device 32 is existing technology and will not be described in detail here.

[0040] Specifically, the bag conveying system 5 is a belt conveyor, and the conveying direction of the bag conveying system 5 is away from the bag opening system 4, so as to convey the bagged diapers away.

[0041] Specifically, the bag push system 6 includes a bag push device 61 and a retraction avoidance device 62. The bag push device 61 is slidably mounted on the frame 1 via a slide rail slider and driven by a cylinder. The retraction avoidance device 62 is mounted on the bag push device 61 and has a telescopic end pointing towards the bag conveying system 5. This telescopic end is made of a cylinder. The pushing direction of the bag push device 61 is towards the diaper bag heat sealing system 3, pushing the bagged diaper towards the diaper bag heat sealing system 3 for heat sealing.

[0042] Specifically, the bag lifting device 41 includes a lifting cylinder 411 and a lifting plate 412. The lifting cylinder 411 is mounted on the frame 1, the lifting plate 412 is mounted on the output end of the lifting cylinder 411, and the upper bag opening clamping device 43 is mounted on the lifting plate 412 to assist in fixing the upper side of the packaging bag 8.

[0043] Specifically, the bag body pull-down device 42 includes a pull-down cylinder 421 and a pull-down plate 422. The pull-down cylinder 421 is mounted on the frame 1, and the pull-down plate 422 is mounted on the output end of the pull-down cylinder 421. The lower bag opening clamping device is mounted on the lower side of the pull-down plate 422 to assist in fixing the lower side of the packaging bag 8.

[0044] Specifically, two bagging side guard devices 7 are installed on both sides of the bag opening system 4. Each bagging side guard device 7 is slidably mounted on the frame 1 to position the bagged diaper.

[0045] The foregoing has shown and described the basic principles and main features of the present invention, as well as its advantages. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope. All such changes and modifications fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. An automated production line for skin-friendly diapers, characterized in that, The system includes a frame, a diaper shaping and pushing system, a diaper bag heat sealing system, a bag opening system, a bag conveying system, and a bag return system, all mounted on the frame. The pushing direction of the diaper shaping and pushing system is towards the bag opening system. The diaper bag heat sealing system is located between the diaper shaping and pushing system and the bag opening system. The bag opening system includes a bag lifting device, a bag pulling device, an upper bag opening clamping device, and a lower bag opening clamping device. The bag lifting device and the bag pulling device are arranged opposite to each other. The upper bag opening clamping device is installed above the bag lifting device, and the lower bag opening clamping device is installed below the bag pulling device. The bag conveying system... The system is installed below the bag body push system. The bag body opening system is installed between the bag body conveying system and the diaper bag heat sealing system. The pushing direction of the bag body push system points towards the diaper bag heat sealing system. The upper bag opening clamping device includes an upper pneumatic extrusion device and an upper eccentric clamping device. Both the upper pneumatic extrusion device and the upper eccentric clamping device are installed on the bag body lifting device. The upper pneumatic extrusion device is located above the upper eccentric clamping device. An upper bag opening seam is formed between the upper pneumatic extrusion device and the upper eccentric clamping device. An upper air blowing port pointing towards the upper bag opening seam is provided on the lower side of the upper pneumatic extrusion device. The upper eccentric clamping device includes several upper clamping wheels. The upper clamping wheels are rotatably mounted on the bag lifting device via an eccentric mechanism. Each upper clamping wheel is deflected towards the side closest to the diaper shaping and pushing system. A torsion spring is provided between the upper clamping wheels and the bag lifting device to maintain the posture of the upper clamping wheels. The diaper shaping and pushing system includes two diaper shaping clamping devices arranged opposite each other and a shaping pushing device that slides between the two diaper shaping clamping devices. Both the diaper shaping clamping devices and the shaping pushing device are mounted on the frame. The pushing direction of the shaping pushing device is towards the bag opening system. The diaper bag heat sealing system includes an upper heat sealing device and a lower heat sealing device arranged opposite each other. All components are mounted on the frame. The bag conveying system is a belt conveyor, and the conveying direction of the bag conveying system is away from the bag opening system. The bag push system includes a bag push device and a retraction avoidance device. The bag push device is slidably mounted on the frame, and the retraction avoidance device is mounted on the bag push device. The retraction avoidance device has a telescopic end pointing towards the bag conveying system. The pushing direction of the bag push device points towards the diaper bag heat sealing system. The bag lifting device includes a lifting cylinder and a lifting plate. The lifting cylinder is mounted on the frame, and the lifting plate is mounted on the output end of the lifting cylinder. The upper bag opening clamping device is mounted on the lifting plate.

2. The automated production line for skin-friendly diapers according to claim 1, characterized in that, The bag pull-down device includes a pull-down cylinder and a pull-down plate. The pull-down cylinder is mounted on the frame, the pull-down plate is mounted on the output end of the pull-down cylinder, and the lower bag opening clamping device is mounted on the lower side of the pull-down plate.

3. The automated production line for skin-friendly diapers according to claim 1, characterized in that, Two bag-filling side guards are installed on both sides of the bag-opening system, and each bag-filling side guard is slidably mounted on the frame.

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