A sterilization and dust removal device for paper diaper production

Abstract

The utility model discloses a sterilization dust collector for paper diaper production belongs to paper diaper production equipment technical field. Including installation cylinder, there is spiral slide rail on installation cylinder inner wall, and installation cylinder has two openings of corresponding spiral slide rail, and installation cylinder is equipped with straight slide rail, and spiral slide rail and straight slide rail are equipped with spiral conveyer belt on the cooperation sliding connection, and the first motor of driving spiral conveyer belt is connected and installed on straight slide rail, and installation cylinder is equipped with ultraviolet sterilization lamp, installation cylinder downside is equipped with fixed plate, and fixed plate is equipped with second motor, and the round plate is connected on the pivot, and the round plate is hinged with a plurality of filter plates, and the installation cylinder inner wall is equipped with annular track, and the annular track is equipped with arc plate, and the filter plate is equipped with the sliding block of sliding with annular track, and the installation cylinder side wall is equipped with the discharge gate, and the fixed plate is equipped with vacuum box. The device runs paper diaper through longer spiral conveyer belt, prolongs ultraviolet sterilization lamp irradiation long, improves sterilization rate, and vacuum box absorbs dust, reduces dust pollution.

Description

Technical Field

[0001] This utility model belongs to the technical field of diaper production equipment, specifically a sterilization and dust removal device for diaper production. Background Technology

[0002] Disposable diapers, also known as pull-up diapers or disposable diapers, are a basic care product for modern infants and incontinent individuals. They are primarily made from non-woven fabric layers, super absorbent polymer cores, and breathable bottom films through processes such as slitting, laminating, pressing, and packaging. The super absorbent polymer core, mainly composed of starch and acrylates, has absorbent and water-retaining properties, capable of storing large amounts of water and maintaining a dry environment. Their core function relies on the hygiene and structural integrity of the materials. During production, it is crucial to ensure microbial control of raw materials and semi-finished products in the production environment. In current mainstream production processes, the unpacking and slitting processes of raw materials are prone to dust contamination, and the humid and hot production environment provides a breeding ground for bacteria.

[0003] Currently, diaper production equipment primarily uses ultraviolet (UV) sterilization lamps for sterilization. This effectively kills pathogens such as E. coli and Staphylococcus aureus, which can easily cause skin allergies and infections in users, thus extending the product's shelf life and improving its hygiene level. However, due to the high output of diaper factories and the rapid pace from diaper production to packaging, UV sterilization lamps are insufficient in their effectiveness, failing to kill UV-resistant bacteria such as spores. Furthermore, the lack of dedicated dust removal modules means that dust generated by the superabsorbent polymer cores in the air can settle on the packaging, potentially causing dust allergies and other health risks for users. Utility Model Content

[0004] To address the problems of insufficient sterilization time and low sterilization rate of existing diaper production equipment, as well as the lack of a dust treatment module and the risk of dust pollution, this utility model provides a sterilization and dust removal device for diaper production.

[0005] This utility model is achieved through the following technical solution: A sterilization and dust removal device for diaper production includes an installation cylinder, a spiral slide rail connected to the inner wall of the installation cylinder, two openings corresponding to the beginning and end of the spiral slide rail on the side wall of the installation cylinder, a straight slide rail passing through the openings and connecting the beginning and end of the spiral slide rail on the outer wall of the installation cylinder, a spiral conveyor belt slidably connected to the spiral slide rail and the straight slide rail, a first motor for driving the spiral conveyor belt connected to the straight slide rail, and an ultraviolet sterilization lamp connected to the upper part of the installation cylinder. A fixed plate is provided on the lower side of the mounting cylinder. A rotating shaft is rotatably connected to the upper side of the fixed plate. A second motor that drives the rotating shaft is connected to the lower side of the fixed plate. A circular plate is connected to the rotating shaft. Several filter plates are hinged around the circumference of the circular plate. An annular track is provided on the inner wall of the mounting cylinder. A downwardly concave arc plate is provided on the annular track. A slider that slides and supports the filter plates is provided on the lower side of the annular track. A corresponding discharge port is provided on the side wall of the mounting cylinder. A vacuum box that adsorbs dust through the filter plates is provided on the fixed plate.

[0006] A further improvement of this utility model is that a connecting plate is connected and installed on the rotating shaft, and a tension spring is provided between the connecting plate and the filter plate.

[0007] A further improvement of this invention is that a pulley that can roll along a circular track is installed at the lower part of the slider.

[0008] A further improvement of this utility model is that several ventilation holes are provided on the lower side of the mounting cylinder.

[0009] A further improvement of this invention is that the spiral conveyor belt is a conveyor belt with a sieve-like transparent structure.

[0010] A further improvement of this invention is that the surface of the filter plate is smooth.

[0011] A further improvement of this utility model is that a guide plate is provided on the outer wall of the mounting cylinder at the outlet.

[0012] As can be seen from the above technical solutions, the beneficial effects of this utility model are: In use, packaged diapers are conveyed from the previous process to a spiral conveyor belt at the upper opening. A rotating first motor drives the spiral conveyor belt to rotate along the slide rail, conveying the diapers into the mounting cylinder. As the diapers spiral downwards on the conveyor belt, ultraviolet sterilization lamps irradiate the diapers for long-term sterilization. When the diapers reach the bottom of the spiral conveyor belt, they are thrown onto a filter plate driven by a second motor. Dust on the diapers is shaken onto the filter plate and then absorbed by the vacuum chamber. As the filter plate rotates, a slider slides along a circular track. When the slider reaches the arc plate, the filter plate tilts downwards, allowing the diaper to slide out of the outlet. This device uses a long spiral conveyor belt to operate the diapers, exposing them to ultraviolet sterilization lamps for extended periods, thus improving the sterilization rate. At the same time, the vacuum chamber absorbs the dust shaken off the diapers, completing the dust removal process and reducing surface dust contamination of the product. Attached Figure Description

[0013] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0016] Figure 3 for Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0017] Figure 4 This is a schematic diagram of the dust removal module structure of this utility model.

[0018] In the attached diagram: 1. Mounting cylinder, 2. Spiral track, 3. Opening, 4. Straight slide rail, 5. Spiral conveyor belt, 6. First motor, 7. Ultraviolet sterilization lamp, 8. Fixing plate, 9. Rotating shaft, 10. Circular plate, 11. Filter plate, 12. Circular track, 13. Arc plate, 14. Slider, 15. Discharge port, 16. Vacuum box, 17. Second motor, 18. Connecting plate, 19. Tension spring, 20. Ventilation hole, 21. Guide plate. Detailed Implementation

[0019] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments in this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0020] like Figure 1-4As shown, a sterilization and dust removal device for diaper production includes an installation cylinder 1. A spiral slide rail 2 is connected and installed on the inner wall of the installation cylinder 1. Two openings 3 are provided on the side wall of the installation cylinder 1, which are aligned vertically with the beginning and end of the spiral slide rail 2. The upper opening 3 is larger and can allow diapers to pass through. A straight slide rail 4 is provided on the outer wall of the installation cylinder 1, which passes through the openings 3 and connects to the beginning and end of the spiral slide rail 2. The lower edge of the upper opening 3 is connected to the upper side of the straight slide rail 4, and the upper edge of the lower opening 3 is connected to the lower side of the straight slide rail 4. A spiral conveyor belt 5 is slidably connected to the spiral slide rail 2 and the straight slide rail 4. The spiral conveyor belt 5 is a closed conveyor belt composed of stainless steel straight bars, U-shaped chains and stainless steel caps, which can realize the composite movement of horizontal conveying and vertical direction. A first motor 6 is connected and installed on the straight slide rail 4 to drive the spiral conveyor belt 5 to rotate. The first motor 6 drives the spiral conveyor belt 5 by driving the rotating roller. Six ultraviolet sterilization lamps 7 of sufficient length are evenly distributed around the upper center of the installation cylinder 1. A fixing plate 8 is provided on the lower side of the mounting cylinder 1. A rotating shaft 9 is rotatably connected to the upper center of the fixing plate 8. A second motor 17 that drives the rotating shaft 9 is connected to the lower side of the fixing plate 8. A circular plate 10 is connected to the rotating shaft 9. Twelve filter plates 11 are hinged around the circumference of the circular plate 10 through pin holes and pin shafts. A certain gap is left between the filter plates 11. The filter plates 11 have a mesh structure. Baffles are provided on both sides of the filter plates 11. An annular track 12 is provided on the inner wall of the mounting cylinder 1. An arc plate 13 with a downward concave shape is provided on the side of the annular track 12 away from the bottom of the spiral slide rail 2. A slider 14 with a circular arc bottom is provided on the lower side of the filter plates 11 and slides with the annular track 12. The shape is smaller than the radius of the arc plate 13 to prevent the slider 14 from sliding poorly on the arc plate 13. The side wall of the mounting cylinder 1 is provided with a discharge port 15 corresponding to the arc plate 13. The discharge port 15 is larger than the outer arc length of the filter plate 11 to facilitate the diaper to slide out. The fixing plate 8 is provided with a vacuum box 16 that adsorbs dust through the filter plate 11. The vacuum box 16 is arranged between the position where the diaper is thrown off the spiral conveyor belt 5 and the discharge port 15. There should be no vacuum box 16 at the discharge port 15, on the one hand, it will interfere with the downward tilting and rotation of the filter plate 11, and on the other hand, the adsorption force will affect the diaper to go out of the discharge port. The lower side of the vacuum box 16 is connected to the vacuum pump to ensure that the dust is absorbed cleanly.

[0021] During use, the diapers are conveyed from the previous process onto the spiral conveyor belt 5 at the upper opening 3. The rotating first motor 6 drives the spiral conveyor belt 5 to rotate along the spiral rail 2, conveying the diapers into the mounting cylinder 1. As the diapers are continuously spiraled downwards on the spiral conveyor belt 5, the ultraviolet sterilization lamp 7 irradiates the diapers for long-term sterilization. When the diapers reach the bottom of the spiral conveyor belt 5, they are thrown onto the filter plate 11, which is rotated by the second motor 17. The dust on the diapers is shaken onto the filter plate 11 and then passes through the filter plate 11 into the vacuum chamber. The filter plate 11 rotates, causing the slider 14 to slide along the annular track 12. When the slider 14 moves to the arc plate 13, the filter plate 11 will rotate downward around the circular plate 10 to an inclined state, so that the diaper slides out from the outlet 15 under the influence of gravity and centrifugal force. This device uses a long spiral conveyor belt 5 to move the diaper, so that the diaper is exposed to the ultraviolet sterilization lamp 7 for a long time for long-term sterilization and to improve the sterilization rate. At the same time, the vacuum box 16 absorbs the dust shaken up on the diaper, completes the dust removal work, and reduces the surface dust pollution of the product.

[0022] A circular connecting plate 18 is connected and installed on the rotating shaft 9. The connecting plate 18 and the filter plate 11 are provided with fixing ears, which are connected by a tension spring 19. The spring 19 exerts a downward pulling force on the filter plate 11, so that the slider 14 is always in contact with the annular track 12. This prevents the slider 14 from failing to contact the arc plate 13 under the action of centrifugal force when the rotation speed is too fast, thus preventing the diaper from being discharged from the outlet 15.

[0023] The lower part of the slider 14 is equipped with a pulley that can roll along the annular track 12. The bottom cross-section of the pulley is semi-circular. This converts sliding friction into rolling friction, which reduces resistance and motor load, reduces wear, achieves maintenance-free operation, and extends service life.

[0024] The mounting cylinder 1 has several ventilation holes 20 on its lower side. The ventilation holes 20 can improve the heat dissipation of the second motor 17, create a suitable working environment for the motor, and extend the service life of the motor.

[0025] The spiral conveyor belt 5 is a sieve-like, permeable conveyor belt, which can be a mesh chain structure. It supports the diaper while minimizing obstruction of the bottom of the diaper. This allows the ultraviolet sterilization lamp 7 to irradiate the lower surface of the diaper, ensuring thorough sterilization and further improving the sterilization effect and guaranteeing a high sterilization rate.

[0026] The filter plate 11 has a smooth surface. This allows the diaper to slide more smoothly out of the outlet 15 when the filter plate 11 is tilted downwards, preventing the diaper from getting stuck in the outlet 15.

[0027] The outer wall of the mounting cylinder 1 is equipped with a guide plate 21 corresponding to the discharge port 15. The guide plate 21 can receive the diaper as it slides down the filter plate 11 and guide the diaper into the subsequent processing steps.

[0028] In use, individually packaged diapers are transferred from the previous process to the spiral conveyor belt 5. As the spiral conveyor belt 5 rotates, the diapers enter the mounting cylinder 1 and are continuously irradiated by the ultraviolet germicidal lamp 7, causing the diapers to continuously spiral downwards. They are then dropped at the lowest point of the spiral conveyor belt 5 and fall onto the filter plate 11. Due to the height difference, the diapers fall onto the filter plate 11 at a certain speed, causing the surface dust to be shaken off. The vacuum box 16 immediately sucks away the shaken dust. As the filter plate 11 continues to rotate, when the slider 14 moves to the arc... When the diaper is on plate 13, the filter plate 11 will rotate downward around the circular plate 10 to an inclined state, so that the diaper slides out from the outlet 15 under the dual action of gravity and centrifugal force, and flows along the guide plate 21 to the next process. This device uses a long three-dimensional spiral conveyor belt 5 to move the diaper, so that the diaper is exposed to the ultraviolet sterilization lamp 7 for a long time for long-term sterilization, improving the sterilization rate. The structure is compact, which can reduce the footprint and adapt to continuous production lines. At the same time, the vacuum box 16 absorbs the dust shaken off the diaper, completes the dust removal work, and reduces the surface dust pollution of the product.

[0029] Both the first motor 6 and the second motor 17 are servo motors and are electrically connected to the controller. The controller can be a common PLC controller, such as the Siemens S7-200+ series. It can run continuously and automatically by setting the program, and automatically adapt to the corresponding working rhythm in conjunction with the production process of the preceding and following diapers.

[0030] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sterilization and dust removal device for diaper production, comprising an installation cylinder (1), characterized in that, The inner wall of the mounting cylinder (1) is connected to a spiral slide rail (2). The side wall of the mounting cylinder (1) is provided with two openings (3) corresponding to the beginning and end of the spiral slide rail (2). The outer wall of the mounting cylinder (1) is provided with a straight slide rail (4) that passes through the opening (3) and connects to the beginning and end of the spiral slide rail (2). A spiral conveyor belt (5) is slidably connected to the spiral slide rail (2) and the straight slide rail (4). A first motor (6) that drives the spiral conveyor belt (5) is connected to the straight slide rail (4). An ultraviolet sterilization lamp (7) is connected to the upper part of the mounting cylinder (1). The mounting cylinder (1) has a fixed plate (8) on its lower side. A rotating shaft (9) is rotatably connected to the upper side of the fixed plate (8). A second motor (17) that drives the rotating shaft (9) to rotate is connected to the lower side of the fixed plate (8). A circular plate (10) is connected to the rotating shaft (9). Several filter plates (11) are hinged around the circular plate (10). An annular track (12) is provided on the inner wall of the mounting cylinder (1). A downwardly concave arc plate (13) is provided on the annular track (12). A slider (14) that slides and supports the filter plate (11) is provided on the lower side of the filter plate (12). A corresponding discharge port (15) is provided on the side wall of the mounting cylinder (1). A vacuum box (16) that adsorbs dust through the filter plate (11) is provided on the fixed plate (8).

2. The sterilization and dust removal device for diaper production according to claim 1, characterized in that, A connecting plate (18) is connected and installed on the rotating shaft (9), and a tension spring (19) is provided between the connecting plate (18) and the filter plate (11).

3. The sterilization and dust removal device for diaper production according to claim 2, characterized in that, The lower part of the slider (14) is equipped with a pulley that can roll along the circular track (12).

4. The sterilization and dust removal device for diaper production according to claim 3, characterized in that, The mounting cylinder (1) has several ventilation holes (20) on its lower side.

5. The sterilization and dust removal device for diaper production according to claim 1, characterized in that, The spiral conveyor belt (5) is a conveyor belt with a sieve-like transparent structure.

6. The sterilization and dust removal device for diaper production according to claim 1, characterized in that, The filter plate (11) has a smooth surface.

7. The sterilization and dust removal device for diaper production according to claim 1, characterized in that, A guide plate (21) is provided on the outer wall of the mounting cylinder (1) at the outlet (15).

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