Biomedical paper diaper and apparatus for manufacturing the same

Abstract

The application discloses a biomedical paper diaper, which comprises a paper diaper body, a filling core body arranged in the paper diaper body, and waistbands arranged at four corners of the paper diaper body, and magic tapes arranged on the four waistbands. The application further discloses a preparation device for the biomedical paper diaper, which comprises a frame body, top plates fixedly installed between inner walls of two sides of the frame body, and two baffle plates fixedly installed at the bottom of the top plate. The compacting mechanism, the side-pressing mechanism and the air extraction mechanism can improve the compacting effect of the filling core body of the paper diaper and the product quality, can make the vacuum box tightly abut against the paper diaper to form a temporary sealing layer, can block the penetration of external air, and then the main pressing plate can move downward to automatically compact the filling core body, the side pressing plate can be quickly pressed downward to compact the two sides of the filling core body by the elastic force of the first spring, the inside of the vacuum box can be automatically vacuumized, the filling core body can be better compressed, and the compacting effect is enhanced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of paper diapers, in particular to a biomedical paper diaper and a preparation device thereof. BACKGROUND

[0002] As an indispensable product in the field of modern parenting and adult care, paper diapers aim to provide users with convenient, comfortable and efficient absorption and protection functions. With the continuous progress of biomedical technology, the performance requirements of paper diapers are increasingly high, not only requiring good water absorption, air permeability, but also achieving higher standards in material safety, environmental protection and compatibility with human skin. Biomedical paper diapers have emerged as the times require, which combines advanced biomedical materials and technology to improve the health experience of users and reduce the risk of skin irritation and allergy, becoming the focus of market attention.

[0003] However, in the preparation process of biomedical paper diapers, traditional devices usually use roller pressing to compact the filling core, and the compaction method is single, which makes it difficult to achieve a more efficient compaction effect, and it is easy to cause voids in the filling core, affecting the water absorption performance and the stability of the overall structure. Therefore, we propose a biomedical paper diaper and a preparation device thereof. SUMMARY

[0004] The purpose of the present application is to solve the shortcomings in the prior art and propose a biomedical paper diaper and a preparation device thereof.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0006] A biomedical paper diaper comprises a paper diaper body, a filling core is arranged in the paper diaper body, waistbands are arranged at four corners of the paper diaper body, magic tapes are arranged on the four waistbands, and leak-proof flaps are arranged on both sides of the paper diaper body.

[0007] The present application also discloses a preparation device for a biomedical paper diaper, which comprises a frame body, a top plate is fixedly installed between the inner walls of both sides of the frame body, two baffle plates are fixedly installed at the bottom of the top plate, a conveyor belt is arranged below the top plate, first hydraulic cylinders are fixedly installed on the inner walls of both sides of the frame body, guide plates are fixedly connected to the extension ends of the two first hydraulic cylinders and located above the conveyor belt, a stress plate is fixedly installed between the inner walls of both sides of the frame body, the stress plate penetrates through the middle part of the conveyor belt, the upper side of the stress plate is attached to the inner side of the conveyor belt, a compaction mechanism is arranged between the two baffle plates, two groups of side pressing mechanisms are symmetrically arranged on the compaction mechanism, and an air extraction mechanism is arranged on the compaction mechanism.

[0008] Preferably, the compacting mechanism comprises two second hydraulic cylinders fixedly installed on the bottom of the top plate, a same upper plate is fixedly connected to the telescopic ends of the two second hydraulic cylinders, a vacuum box is arranged below the upper plate, two sliding rods are arranged through the top of the vacuum box and are in sliding connection with the vacuum box, one end of each of the two sliding rods is fixedly connected to the bottom of the upper plate, a same main pressing plate is fixedly installed on the other end of each of the two sliding rods in the vacuum box, and a second spring is fixedly connected between the upper plate and the vacuum box.

[0009] Preferably, the side pressing mechanism comprises a fixed plate fixedly installed on the side wall of the vacuum box, two pressure storage rods are arranged through the fixed plate and are in sliding connection with the fixed plate, a same side pressing plate is fixedly installed on the bottom of each of the two pressure storage rods, a first spring is fixedly connected between the side pressing plate and the fixed plate, two mounting blocks are fixedly installed on the top of the vacuum box, a same rotating shaft is arranged through the two mounting blocks and is in rotating connection with the two mounting blocks, a one-way bearing is arranged on the outer wall of the rotating shaft between the two mounting blocks, a gear is fixedly installed on the outer ring of the one-way bearing, a circular block is fixedly installed on each end of the rotating shaft, a first rotating rod is rotatably connected to each side wall of the two circular blocks away from the gear, a second rotating rod is rotatably connected to each side wall of the two pressure storage rods away from the vacuum box and above the fixed plate, and a rack is fixedly installed on the bottom of the upper plate and is in meshing connection with the gear.

[0010] Preferably, the air extraction mechanism comprises a connecting rod arranged through the upper plate and in sliding connection with the upper plate, one end of the connecting rod is fixedly connected to the top of the vacuum box, a connecting plate is fixedly installed on the other end of the connecting rod, two air extraction boxes are fixedly installed on the top of the upper plate, an air extraction rod is arranged through the top of each of the two air extraction boxes and is in sliding connection with the air extraction box, a piston block is fixedly installed on one end of each of the two air extraction rods, each of the two piston blocks is in sliding connection with the inner wall of the corresponding air extraction box, the other end of each of the two air extraction rods is fixedly connected to the bottom of the connecting plate, and an air inlet pipe and an air outlet pipe are arranged on each of the two air extraction boxes and are in communication with the inside of the air extraction box.

[0011] Preferably, a sealing ring is arranged at the through portion of each of the two sliding rods and the vacuum box.

[0012] Preferably, the rotating shaft is fixedly connected to the inner ring of the one-way bearing, and each of the two second rotating rods is located on the side of each of the two circular blocks away from the gear.

[0013] Preferably, one end of each of the air outlet pipe and the air inlet pipe in communication with the corresponding air extraction box is located below the piston block, a one-way valve is arranged in each of the air outlet pipe and the air inlet pipe, and one end of each of the two air inlet pipes penetrates the top of the vacuum box.

[0014] The present application has the following beneficial effects:

[0015] By setting the compaction mechanism, the vacuum box can be tightly abutted with the diaper during the extension of the telescopic end of the second hydraulic cylinder, thereby forming a temporary sealing layer, effectively blocking the penetration of external air through the gap between the non-woven fabric fibers of the diaper, and after the vacuum box is tightly abutted with the diaper, the main pressing plate inside the vacuum box moves downward to automatically compact the filling core.

[0016] By setting the side pressing mechanism, the round block can be rotated in one direction during the extension of the telescopic end of the second hydraulic cylinder, thereby enabling the first rotating rod to first contact and then separate from the second rotating rod, and the side pressing plate is quickly moved downward by the elastic force generated by the compression of the first spring to compact the two side portions of the filling core.

[0017] By setting the air extraction mechanism, the vacuum inside the vacuum box can be automatically extracted during the process of the main pressing plate moving downward to compact the filling core portion, so that the filling core of the diaper can be better compressed, greatly improving the compaction effect and the quality of the product.

[0018] The present application improves the compaction effect and the quality of the product by setting the compaction mechanism, the side pressing mechanism and the air extraction mechanism, and enables the vacuum box to be tightly abutted with the diaper to form a temporary sealing layer, block the penetration of external air, and then the main pressing plate moves downward to automatically compact the filling core, while the side pressing plate can be quickly pressed downward to compact the two sides of the filling core by the elastic force of the first spring, and the vacuum inside the vacuum box is automatically extracted, so that the filling core is better compressed, and the compaction effect is enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 A planar structure schematic diagram of a biomedical diaper is proposed in the present application;

[0020] Figure 2 A three-dimensional structure schematic diagram of a preparation device of a biomedical diaper is proposed in the present application;

[0021] Figure 3 A three-dimensional structure schematic diagram of a preparation device of a biomedical diaper after being cut open is proposed in the present application;

[0022] Figure 4 An enlarged structure schematic diagram of position A in the present application is proposed in the present application; Figure 3

[0023] Figure 5 A three-dimensional structure schematic diagram of the compaction mechanism, the side pressing mechanism and the air extraction mechanism of the present application is proposed in the present application;

[0024] Figure 6 A three-dimensional structure schematic diagram of the compaction mechanism, the side pressing mechanism and the air extraction mechanism of the present application is proposed in the present application;

[0025] ​In the figure: 1 paper diaper main body, 2 leakage prevention partition, 3 filling core, 4 waistband, 5 magic tape, 6 first hydraulic cylinder, 7 guide plate, 8 conveyor belt, 9 top plate, 10 baffle, 11 stress plate, 12 second hydraulic cylinder, 13 connecting plate, 14 side pressing plate, 15 air extraction box, 16 air extraction rod, 17 piston block, 18 connecting rod, 19 air outlet pipe, 20 upper plate, 21 round block, 22 pressure accumulation rod, 23 first spring, 24 fixed plate, 25 vacuum box, 26 mounting block, 27 one-way bearing, 28 gear, 29 main pressing plate, 30 rack, 31 second spring, 32 sliding rod, 33 rotating shaft, 34 air inlet pipe, 35 first rotating rod, 36 second rotating rod, 37 frame body, 38 sealing ring. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments.

[0027] Referring to Figure 1 A biomedical paper diaper and a preparation device thereof, comprising a paper diaper main body 1, a filling core 3 arranged in the paper diaper main body 1, a waistband 4 arranged at each corner of the paper diaper main body 1, a magic tape 5 arranged on each of the four waistbands 4, and a leakage prevention partition 2 arranged on both sides of the paper diaper main body 1, wherein a core layer of the filling core 3 is a sodium alginate / sodium carboxymethyl cellulose composite hydrogel loaded with 0.5% tea polyphenol microcapsules, and the sodium alginate / sodium carboxymethyl cellulose composite hydrogel releases anti-inflammatory components when in contact with body fluid.

[0028] Referring to Figures 2-6The utility model provides a kind of biomedical paper diaper preparation device, including frame body 37, top plate 9 is fixedly installed between the two side inner walls of frame body 37, the bottom of top plate 9 is fixedly installed with two baffle 10, the lower of top plate 9 is provided with conveying belt 8, conveying belt 8 is responsible for the paper diaper to be compacted and is transported to specified position, first hydraulic cylinder 6 is fixedly installed on the two side inner walls of frame body 37, the telescopic end of two first hydraulic cylinders 6 is fixedly connected with the guide plate 7 located above conveying belt 8, force plate 11 is fixedly installed between the two side inner walls of frame body 37, force plate 11, force plate 11 is through and is arranged in the middle part of conveying belt 8, force plate 11 upper side and conveying belt 8 inboard are pasted, compacting mechanism is arranged between two baffle 10, compacting mechanism includes two second hydraulic cylinders 12 fixedly installed on the bottom of top plate 9, the telescopic end of two second hydraulic cylinders 12 is fixedly connected with same upper plate 20, the lower of upper plate 20 is provided with vacuum box 25, vacuum box 25 is in close contact with paper diaper during compacting process, forms temporary sealing layer, effectively blocks external air penetration, provides necessary environment for subsequent vacuum extraction and compacting operation, the top of vacuum box 25 is through and is provided with two sliding rods 32 slidingly connected with it, one end of two sliding rods 32 is fixedly connected on the bottom of upper plate 20, the other end of two sliding rods 32 is fixedly installed with same main pressing plate 29 located in vacuum box 25, second spring 31 is fixedly connected between upper plate 20 and vacuum box 25, the through -passing place of two sliding rods 32 and vacuum box 25 is provided with sealing ring 38, sealing ring 38 adopts fluorine rubber O type ring to realize static main sealing, fluorine rubber O type ring has good oil resistance, high temperature resistance and chemical corrosion resistance, can effectively prevent gas leakage, ensure the vacuum degree inside vacuum box 25, cooperate with the surface treatment of hard chromium and DLC coating sliding rod 32, with trace amount of perfluoropolyether oil lubrication, perfluoropolyether oil has excellent lubricating property and chemical stability, can form a layer of lubricating film between sliding rod 32 and sealing ring 38, reduce frictional resistance, improve sealing effect, simultaneously prevent the sealing failure caused by insufficient lubrication, form airtight, dustproof, wear-resistant triple sealing system.

[0029] The compacting mechanism is provided with two groups of side pressing mechanisms symmetrically arranged, the side pressing mechanism comprises a fixed plate 24 fixedly installed on the side wall of the vacuum box 25, two pressure accumulation rods 22 are throughly arranged on the fixed plate 24 and are in sliding connection with the fixed plate 24, the bottom of the two pressure accumulation rods 22 is fixedly installed with the same side pressing plate 14, the first spring 23 is fixedly connected between the side pressing plate 14 and the fixed plate 24, the top of the vacuum box 25 is fixedly installed with two mounting blocks 26, the two mounting blocks 26 are throughly arranged with the same rotating shaft 33 which is in rotating connection with the two mounting blocks 26, the outer wall of the rotating shaft 33 is provided with the one-way bearing 27 which is located between the two mounting blocks 26, the one-way bearing 27 enables the rotating shaft 33 to freely rotate in a specific direction and is locked in the opposite direction, thereby realizing the one-way driving function of the gear 28, the outer ring of the one-way bearing 27 is fixedly installed with the gear 28, the two ends of the rotating shaft 33 are fixedly installed with the round block 21, the first rotating rod 35 is in rotating connection with the side wall of the two round blocks 21 which is away from the gear 28, the second rotating rod 36 is in rotating connection with the side wall of the two pressure accumulation rods 22 which is close to the vacuum box 25 and is located above the fixed plate 24, the first rotating rod 35 and the second rotating rod 36 are in contact and separation during rotation, thereby realizing the rapid downward movement of the side pressing plate 14 and the compacting operation on the two sides of the filling core body, the bottom of the upper plate 20 is fixedly installed with the rack 30 which is in meshing connection with the gear 28, the rotating shaft 33 is fixedly connected with the inner ring of the one-way bearing 27, and the two second rotating rods 36 are located on the side of the two round blocks 21 which is away from the gear 28.

[0030] The compacting mechanism is provided with an air extraction mechanism, the air extraction mechanism comprises a connecting rod 18 which is throughly arranged on the upper plate 20 and is in sliding connection with the upper plate 20, one end of the connecting rod 18 is fixedly connected with the top of the vacuum box 25, the other end of the connecting rod 18 is fixedly installed with the connecting plate 13, the top of the upper plate 20 is fixedly installed with two air extraction boxes 15, the top of the two air extraction boxes 15 is throughly arranged with the air extraction rod 16 which is in sliding connection with the air extraction box 15, one end of the two air extraction rods 16 is fixedly installed with the piston block 17, the piston block 17 slides up and down in the air extraction box 15 under the driving of the air extraction rod 16, thereby realizing the vacuum extraction operation on the inside of the vacuum box 25, the two piston blocks 17 are in sliding connection with the inner walls of the two air extraction boxes 15, the other end of the two air extraction rods 16 is fixedly connected on the bottom of the connecting plate 13, the two air extraction boxes 15 are provided with the air inlet pipe 34 and the air outlet pipe 19 which are in communication with the inside of the air extraction box 15, the air inlet pipe 34 is used for sucking the air in the vacuum box 25 into the air extraction box 15, and the air outlet pipe 19 is used for discharging the air in the air extraction box 15 to the external environment, the end of the air outlet pipe 19 and the air inlet pipe 34 which is in communication with the air extraction box 15 is located below the piston block 17, the air outlet pipe 19 and the air inlet pipe 34 are provided with the one-way valve, the one-way valve ensures that the air can only flow in one direction, prevents the air from flowing back and affects the vacuum extraction effect, and one end of the two air inlet pipes 34 is through the top of the vacuum box 25.

[0031] In the initial state of use, the first rotating rod 35 is located below and in contact with the second rotating rod 36, and the first spring 23 is compressed. Because the openings of the two relatively inclined guide plates 7 are reduced, the misaligned diapers on the conveyor belt 8 can be guided sequentially to directly below the vacuum box 25. When the diapers are conveyed to directly below the vacuum box 25, the second hydraulic cylinder 12 is activated to move the upper plate 20 and the vacuum box 25 downwards synchronously until the vacuum box 25 contacts the diapers. Then, the second hydraulic cylinder 12 causes the upper plate 20 to continue moving downwards, compressing the second spring 31. The elastic force generated by the compression of the second spring 31 ensures that the vacuum box 25 and the diapers are tightly pressed together. During the continued downward movement of the upper plate 20, the sliding rod 32 is used to... The main pressure plate 29 can move downwards, thereby compacting the filling core 3. During the downward movement of the main pressure plate 29, the connecting rod 18 and the connecting plate 13 are set, so that the vacuum box 15 can move downwards relative to the connecting plate 13. By setting two vacuum rods 16, the piston block 17 can slide upwards in the vacuum box 15, thus generating a vacuuming effect, thereby creating a vacuum in the vacuum box 25. This allows the filling core 3 of the diaper to be better compressed, greatly improving its compaction effect and product quality. By using a fluororubber O-ring at the penetration point between the sliding rod 32 and the vacuum box 25, a static main seal is achieved. Combined with the surface treatment of the rod with hard chrome plating and DLC coating, and supplemented with micro-lubrication of perfluoropolyether oil, a triple sealing system of airtightness, dustproofness, and wear resistance is formed.

[0032] As the upper plate 20 moves downward, the rack 30 moves downward accordingly. Through the meshing connection between the rack 30 and the gear 28, the gear 28 can rotate an integer number of revolutions in one direction (see attached diagram). Figure 4 (State), at this time the inner and outer rings of the one-way bearing 27 are locked, thereby allowing the rotating shaft 33 and the circular block 21 to rotate in one direction. When the circular block 21 rotates in one direction (see attached...) Figure 5 (The left circular block 21 rotates clockwise, and the right circular block 21 rotates counterclockwise.) The first rotating rod 35 rotates around the axis of the rotating shaft 33 in one direction. The rotation of the first rotating rod 35 causes the second rotating rod 36 to move upward and separate from each other, eventually returning to the initial position. This process repeats. When the second rotating rod 36 moves upward, the pressure accumulator 22 and the side pressure plate 14 move upward, and their first spring 23 continues to be compressed. When the first rotating rod 35 and the second rotating rod 36 separate from each other, the elastic force generated by the compression of their first spring 23 enables the side pressure plate 14 to move downward quickly and forcefully compact the edge of the filling core 3, so that the superabsorbent polymer particles and nonwoven fibers form a dense cross-linked structure. This process repeats.

[0033] When the upper plate 20 is moved upward by the second hydraulic cylinder 12, the sliding rod 32 and the main pressing plate 29 are moved upward until the main pressing plate 29 abuts against the inner top of the vacuum box 25, at which time the second spring 31 returns to the original length, in the process, the upwardly moving upper plate 20 gradually brings the air suction box 15 close to the connecting plate 13, so that the gas sucked into the air suction box 15 is discharged through the air outlet pipe 19, so as to carry out the next air suction, the upwardly moving upper plate 20 simultaneously drives the rack 30 to move upward, through the meshing connection of the rack 30 and the gear 28, the gear 28 can be further rotated in the other direction, at which time the inner ring and the outer ring of the one-way bearing 27 are idling, the rotating shaft 33 and the circular block 21 do not rotate, then with the continuous upward movement of the upper plate 20, the vacuum box 25 will move upward, so that the vacuum box 25 is away from the paper diaper, so as to realize the compaction of the filling core 3 in the paper diaper.

[0034] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A device for preparing biomedical diapers, comprising a frame (37), characterized in that, A top plate (9) is fixedly installed between the inner walls of both sides of the frame (37). Two baffles (10) are fixedly installed at the bottom of the top plate (9). A conveyor belt (8) is provided below the top plate (9). A first hydraulic cylinder (6) is fixedly installed on the inner walls of both sides of the frame (37). A guide plate (7) located above the conveyor belt (8) is fixedly connected to the telescopic ends of the two first hydraulic cylinders (6). A force plate (11) is fixedly installed between the inner walls of both sides of the frame (37). The force plate (11) is installed through the middle of the conveyor belt (8). The upper side of the force plate (11) is in contact with the inner side of the conveyor belt (8). A compaction mechanism is provided between the two baffles (10). Two sets of side pressure mechanisms are symmetrically arranged on the compaction mechanism. An air extraction mechanism is provided on the compaction mechanism. The compaction mechanism includes two second hydraulic cylinders (12) fixedly installed on the bottom of the top plate (9). The telescopic ends of the two second hydraulic cylinders (12) are fixedly connected to the same upper plate (20). A vacuum box (25) is provided below the upper plate (20). Two sliding rods (32) are slidably connected to the top of the vacuum box (25). One end of each sliding rod (32) is fixedly connected to the bottom of the upper plate (20). The other end of each sliding rod (32) is fixedly installed with the same main pressure plate (29) located inside the vacuum box (25). A second spring (31) is fixedly connected between the upper plate (20) and the vacuum box (25). The side pressure mechanism includes a fixed plate (24) fixedly installed on the side wall of the vacuum box (25). Two pressure accumulators (22) are slidably connected to the fixed plate (24). The bottom of the two pressure accumulators (22) is fixedly installed with the same side pressure plate (14). A first spring (23) is fixedly connected between the side pressure plate (14) and the fixed plate (24). Two mounting blocks (26) are fixedly installed on the top of the vacuum box (25). The two mounting blocks (26) are connected with the same rotating shaft (33) that is rotatably connected to both mounting blocks (26). A one-way bearing (27) is provided on the outer wall between two mounting blocks (26). A gear (28) is fixedly installed on the outer ring of the one-way bearing (27). Both ends of the rotating shaft (33) are fixedly installed with round blocks (21). A first rotating rod (35) is rotatably connected to the side wall of the two round blocks (21) away from the gear (28). A second rotating rod (36) located above the fixed plate (24) is rotatably connected to the side wall of the two accumulator rods (22) near the vacuum box (25). A rack (30) that meshes with the gear (28) is fixedly installed at the bottom of the upper plate (20).

2. The apparatus for preparing a biomedical diaper according to claim 1, characterized in that, The vacuum mechanism includes a connecting rod (18) that is slidably connected to the upper plate (20). One end of the connecting rod (18) is fixedly connected to the top of the vacuum box (25), and the other end of the connecting rod (18) is fixedly installed with a connecting plate (13). Two vacuum boxes (15) are fixedly installed on the top of the upper plate (20). Each of the two vacuum boxes (15) has a vacuum rod (16) that is slidably connected to it. One end of each of the two vacuum rods (16) is fixedly installed with a piston block (17). The two piston blocks (17) are slidably connected to the inner walls of the two vacuum boxes (15). The other end of each of the two vacuum rods (16) is fixedly connected to the bottom of the connecting plate (13). Each of the two vacuum boxes (15) is provided with an inlet pipe (34) and an outlet pipe (19) that communicate with its interior.

3. The apparatus for preparing a biomedical diaper according to claim 1, characterized in that, A sealing ring (38) is provided at the penetration point between the two sliding rods (32) and the vacuum box (25).

4. The apparatus for preparing a biomedical diaper according to claim 1, characterized in that, The rotating shaft (33) is fixedly connected to the inner ring of the one-way bearing (27), and the two second rotating rods (36) are respectively located on the side of the two round blocks (21) away from the gear (28).

5. The apparatus for preparing a biomedical diaper according to claim 2, characterized in that, The ends of the exhaust pipe (19) and the intake pipe (34) that are connected to the vacuum box (15) are both located below the piston block (17). One-way valves are provided in both the exhaust pipe (19) and the intake pipe (34). One end of each of the two intake pipes (34) passes through the top of the vacuum box (25).

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