High polymer material applying device for water-absorbing core body of hygienic product

Abstract

The invention relates to the technical field of hygienic product production equipment, in particular to a high polymer material applying device for a hygienic product water absorption core. According to the high polymer material applying device for the water-absorbing core body of the hygienic product, the feeding mechanism, the filtering mechanism, the material applying mechanism and the leveling and shaping mechanism are mounted on the rack, so that the water-absorbing high polymer material can be uniformly, automatically and efficiently applied to the hygienic product body in the normal advancing process of the hygienic product; and the high polymer material of the water-absorbing core body can be intermittently supplied and is applied to the hygienic product body at intervals in manners of gravity, air pressure and the like, so that the processing and forming of strip-shaped water-absorbing strips and flow guide strips are realized. The application device is simple in structure, high in production efficiency, low in total cost, suitable for large-scale production, capable of achieving simultaneous application of various high polymer materials and capable of improving richness, diversity and design flexibility of products, and working procedures are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of sanitary product production equipment, and in particular to a polymer material applying device for a water-absorbing core of a sanitary product. Background Art

[0002] Polymer resin (SAP for short) is a typical functional polymer material. It can absorb hundreds or even thousands of times its own weight of water and has a strong water retention capacity, so it is also called super absorbent or high water retention agent. Granular polymer resin is a form of polymer resin. Granular polymer resin is widely used in the production process of sanitary products. Due to the different quality and weight requirements of baby (adult) diapers, diapers, training pants (pull-up pants), sanitary napkins, and panty liners, for sanitary products, the amount of polymer determines the absorbency, absorption speed, and absorption rate of the product. Therefore, the same product, such as sanitary napkins, may have different requirements for the quality and weight of polymers due to different production processes. Existing polymer application devices usually use a dispersed method to sprinkle on the composite core.

[0003] For example, CN109967288B discloses a polymer feeding device for the absorbent core of sanitary products and a feeding method thereof. This polymer feeding device includes a silo, a pumping device, a feeding device, and a controller. The silo is provided with a accommodating chamber and the opening of the accommodating chamber faces upward. A weighing device is provided at the bottom of the accommodating chamber. The pumping device includes a pumping device and a driving mechanism. The pumping device includes a pumping port and a discharging port. The pumping port is provided on the accommodating chamber. The driving mechanism is connected to the pumping port and drives the pumping port to move up and down. The feeding device includes a sprayer, and the sprayer is provided with a plurality of spray ports. The polymer feeding device for the absorbent core of sanitary products of the present invention measures the content of polymers in the silo in real time by providing a weighing device at the bottom of the silo, thereby accurately measuring the amount of polymer material applied, and accurately controlling the amount of application through the pumping device. The pumping port of the pumping device is provided above the opening of the accommodating chamber and the pumping port can move with the height of the polymer material. However, the feeding device has the following problems: 1. Uneven material collection causes uneven polymer material spraying on the surface of sanitary products, making the water absorption performance of sanitary products unstable.

[0004] 2. The sanitary product body is not positioned, so the nozzle cannot be accurately sprayed on the sanitary product body, which easily causes waste of polymer materials.

[0005] 3. Extracting materials through the cooperation of the extractor and the driving mechanism may easily cause the pipeline to be blocked, making it impossible for the sprayer to discharge materials.

[0006] 4. The sprayer cannot form spaced strip-shaped adsorbents.

[0007] In view of this, the present application proposes a polymer material applying device for the water-absorbent core of sanitary products with simple structure, high production efficiency and excellent product performance to solve the above problems. Summary of the invention

[0008] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art and to provide a polymer material applying device for the water-absorbent core of sanitary products.

[0009] To achieve the above-mentioned object, the technical solution adopted by the present invention is as follows: a polymer material applying device for a water-absorbent core of a sanitary product comprises a frame, on which a roller conveyor belt is installed; A feeding mechanism is installed above the frame, a crushing assembly is installed inside the feeding mechanism, and a conveying assembly is connected to the discharge port of the crushing assembly; A filtering mechanism is installed below the feeding mechanism and is connected to the output end of the transmission component, and a vibration component is installed on the filtering mechanism; The material application mechanism comprises a material application cylinder installed below the filtering mechanism, a material carrying cylinder is coaxially arranged inside the material application cylinder, a first material application opening is provided on the material carrying cylinder, and a plurality of second material application openings matching the first material application opening are provided on the material application cylinder; The leveling and shaping mechanism comprises a leveling and shaping rod installed between two adjacent roller conveyor belts, a driving component for driving the leveling and shaping rod to move up and down is installed above the leveling and shaping rod, and a negative pressure adsorption component for adsorbing sanitary products is provided below the leveling and shaping rod.

[0010] Furthermore, the feeding mechanism comprises a conical feeding barrel, and a control valve is provided at the bottom of the feeding barrel.

[0011] Furthermore, the crushing assembly includes a first motor installed on the feeding barrel, a driving wheel is provided at the output end of the first motor, a driven wheel is connected to the driving wheel through a conveyor belt, the driving wheel and the driven wheel are provided with a roller shaft extending into the interior of the feeding barrel, and a crushing blade is provided on the roller shaft.

[0012] Furthermore, the transmission component includes a tank body, a second motor is installed on the tank body, a transmission rod is provided at the output end of the second motor, a spiral blade is provided on the transmission rod, and the end of the spiral blade is in a sealing knife shape.

[0013] Furthermore, the filtering mechanism includes a discharge box, in which a filter screen plate is inclined, a material receiving funnel is provided at the bottom of the screen plate, and the material receiving funnel is connected to the loading barrel; the vibration assembly includes a vibration motor, and a vibration shaft is provided at the output end of the vibration motor, and the vibration shaft is connected to the screen plate.

[0014] Furthermore, the application barrel is a cylindrical structure with open ends and is sleeved on the outside of the loading barrel; the application barrel is rotatable relative to the loading barrel, and the rotation of the application barrel makes the first application port of the loading barrel communicate with the second application port of the application barrel in sequence, and the powder in the application barrel falls on the sanitary product body at intervals; support rods for fixing the loading barrel are arranged at both ends of the loading barrel, and a feed pipe and an air intake pipe are arranged at one end of the loading barrel, the feed pipe is connected to the material receiving funnel, and a pressure pump is connected to the air intake pipe.

[0015] Furthermore, a first gear is provided on the roller conveyor belt, and a second gear matching the first gear is provided at one end of the material application barrel, and a diameter of the second gear is greater than a diameter of the first gear.

[0016] Furthermore, a material guide is installed on the first material application port of the material application barrel, a material drop port connected to the first material application port is formed at the bottom of the material guide, the material guide is trumpet-shaped, and the first material application port is a conical structure.

[0017] Furthermore, an inner groove for shaping polymer materials is provided at the bottom of the leveling and shaping rod; the negative pressure adsorption component includes a negative pressure plate with a hollow cavity, and a plurality of adsorption holes connected to the cavity are provided at the top of the negative pressure plate; a negative pressure regulator is provided at the bottom of the negative pressure plate, and the negative pressure regulator is connected to the cavity; the driving component includes a cylinder installed on the frame, and the output end of the cylinder is connected to the leveling and shaping rod.

[0018] Furthermore, a recovery frame is provided at the bottom of the roller conveyor belt, and the recovery frame is connected to the frame.

[0019] Compared with the prior art, the technical solution of this application has the following beneficial effects: 1. The present application installs a feeding mechanism, a filtering mechanism, a material application mechanism, and a leveling and shaping mechanism on a frame, so that the water-absorbent polymer material can be applied to the body of the sanitary product evenly, automatically, and efficiently during the normal movement of the sanitary product, and can realize the discontinuous feeding of the water-absorbent core polymer material, and can be applied to the body of the sanitary product at intervals by means of gravity, air pressure, etc., so as to realize the processing and forming of strip-shaped water-absorbent strips and guide strips. The application device has a simple structure, reduces the process flow, has high production efficiency, and has a low overall cost. It is suitable for large-scale production and can realize the simultaneous application of multiple polymer materials, which increases the richness, diversity, and design flexibility of the product.

[0020] 2. The present application installs a crushing component and a transmission component on the feeding mechanism, so that the water-absorbent polymer material can be fully mixed and evenly mixed, which is convenient for subsequent application to the sanitary product body; 3. The present application installs a vibration component on the filtering mechanism, so that the unbroken polymer material can be recovered into the feeding bucket, ensuring that the polymer material subsequently added to the sanitary products is in a uniform powder form, thereby improving the water absorption of the sanitary products.

[0021] 4. The present application provides a material application mechanism so that the polymer material can be evenly applied to the body of the sanitary product under the cooperation of the material application cylinder and the material carrier cylinder.

[0022] 5. The present application uses a leveling and shaping mechanism to enable the polymer material to form strip-shaped water-absorbing strips and guide strips on the body of the sanitary product under the coordinated action of the roller conveyor belt, the leveling and shaping rod, the driving assembly, and the negative pressure adsorption assembly, thereby improving the stability of the sanitary product in absorbing water and effectively avoiding problems such as side leakage of the sanitary product. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of a polymer material applying device for a water-absorbent core of a sanitary product in a preferred embodiment of the present invention; Figure 2 It is a side view of a polymer material applying device for a water-absorbent core of a sanitary product in a preferred embodiment of the present invention; Figure 3 A top view of a polymer material applying device for a water-absorbent core of a sanitary product in a preferred embodiment of the present invention; Figure 4 It is a structural schematic diagram of a feeding mechanism in a preferred embodiment of the present invention; Figure 5 It is a schematic diagram of the internal structure of the feeding mechanism in the preferred embodiment of the present invention; Figure 6 It is a structural schematic diagram of the material application mechanism in a preferred embodiment of the present invention; Figure 7 It is a structural schematic diagram of a material carrying barrel in a preferred embodiment of the present invention; Figure 8 It is a structural schematic diagram of the filtering mechanism in a preferred embodiment of the present invention; Fig. 9 It is a schematic structural diagram of a negative pressure adsorption component in a preferred embodiment of the present invention.

[0024] Reference numerals: 1, frame; 2, roller conveyor belt; 3, feeding mechanism; 301, feeding barrel; 4. Filter mechanism; 401. Discharging box; 402. Screen plate; 403. Receiving funnel; 5. Material application mechanism; 501. Material application cylinder; 502. Material loading cylinder; 6. Leveling and shaping mechanism; 601. Leveling and shaping rod; 602. Driving assembly; 603. Negative pressure adsorption assembly; 7. Crushing assembly; 701. first motor; 702. driving wheel; 703. driven wheel; 704. crushing blade; 8. Transmission assembly; 801. Tank body; 802. Second motor; 803. Transmission rod; 804. Spiral blade; 9. Vibration assembly; 10. First feeding port; 11. Second feeding port; 12. Support rod; 13. Feed pipe; 14. Air inlet pipe; 15. First gear; 16. Second gear; 17. Material guide; 18. Negative pressure plate; 19. Adsorption hole; 20. Negative pressure regulator; 21. Recovery frame. DETAILED DESCRIPTION

[0025] The technical solutions in the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] Reference Figure 1-Figure 9 As shown, a preferred embodiment of the present invention, a polymer material applying device for a water-absorbent core of a sanitary product, comprises a frame 1, on which a roller conveyor belt 2 is mounted; A feeding mechanism 3 is installed above the frame 1, a crushing assembly 7 is installed inside the feeding mechanism 3, and a conveying assembly 8 is connected to the discharge port of the crushing assembly 7; A filtering mechanism 4 is installed below the feeding mechanism 3 and is connected to the output end of the transmission component 8. A vibration component 9 is installed on the filtering mechanism 4; The material application mechanism 5 comprises a material application barrel 501 installed below the filtering mechanism 4, a material loading barrel 502 is coaxially arranged inside the material application barrel 501, a first material application port 10 is provided on the material loading barrel 502, and a plurality of second material application ports 11 matching the first material application port 10 are provided on the material application barrel 501, so that the intermittent feeding of the water-absorbing core polymer material can be realized, and the material can be applied to the sanitary product body at intervals by means of gravity, air pressure, etc., so as to realize the processing and forming of the strip-shaped water-absorbing strip and the guide strip; The leveling and shaping mechanism 6 comprises a leveling and shaping rod 601 installed between two adjacent roller conveyor belts 2, a driving assembly 602 for driving the leveling and shaping rod 601 to move up and down is installed above the leveling and shaping rod 601, and a negative pressure adsorption assembly 603 for adsorbing sanitary products is provided below the leveling and shaping rod 601, so that the water-absorbent polymer material can be evenly, automatically and efficiently applied to the body of the sanitary product during the normal movement of the sanitary product. The applying device has a simple structure, reduces the process flow, has high production efficiency, and has a low overall cost. It is suitable for large-scale production and can realize the simultaneous application of multiple polymer materials, which increases the richness, diversity and design flexibility of the product.

[0027] At the same time, the device of the present invention also includes a control mechanism, which includes a controller and a power supply and a control switch electrically connected to the controller. The controller controls the working states of the feeding mechanism, the filtering mechanism, the applying mechanism, and the leveling and shaping mechanism. The circuit connection of the control system can be achieved according to the existing technology, and this embodiment will not be described one by one.

[0028] As a preferred embodiment of the present invention, it may also have the following additional technical features: the feeding mechanism 3 includes a conical feeding barrel 301, the bottom of which is provided with a control valve, so as to facilitate the discharge of polymer materials; the crushing assembly 7 includes a first motor 701 installed on the feeding barrel 301, the output end of the first motor 701 is provided with a driving wheel 702, the driving wheel 702 is connected to a driven wheel 703 through a conveyor belt, the driving wheel 702 and the driven wheel 703 are provided with a roller extending into the inside of the feeding barrel 301, and the roller is provided with a crushing blade 704. Thus, it is convenient to crush the polymer material, so that the subsequent material can be applied to the sanitary products more evenly.

[0029] In this embodiment, the transmission assembly 8 includes a tank body 801, a second motor 802 is installed on the tank body 801, a transmission rod 803 is provided at the output end of the second motor 802, a spiral blade 804 is provided on the transmission rod 803, and the end of the spiral blade 804 is in a sealing knife shape. Thus, the polymer material can be formed into a more delicate powder.

[0030] In this embodiment, the filtering mechanism 4 includes a discharge box 401, in which a filtering screen plate 402 is obliquely arranged, a receiving funnel 403 is arranged at the bottom of the screen plate 402, and the receiving funnel 403 is connected to the material loading cylinder 502; the vibration assembly 9 includes a vibration motor, and a vibration shaft is arranged at the output end of the vibration motor, and the vibration shaft is connected to the screen plate 402. In this way, large particles of polymer materials can be screened out, which is convenient for subsequent uniform addition to sanitary products.

[0031] In this embodiment, the application barrel 501 is a cylindrical structure with open ends and is sleeved on the outside of the material loading barrel 502; the application barrel 501 can rotate relative to the material loading barrel 502, and the application barrel 501 rotates so that the first application port 10 of the material loading barrel 502 is connected with the second application port 11 of the application barrel 501 in sequence, and the powder in the application barrel 501 falls on the sanitary product body at intervals; the two ends of the material loading barrel 501 are provided with support rods 12 for fixing the material loading barrel, and one end of the material loading barrel 502 is provided with a feed pipe 13 and an air intake pipe 14, the feed pipe 14 is connected to the material receiving funnel 403, and the air intake pipe 14 is connected to a pressure pump. In this way, the polymer material can be evenly and quickly applied to the sanitary product body under the cooperation of the application barrel and the material loading barrel.

[0032] In this embodiment, a first gear 15 is provided on the roller conveyor belt 2, and a second gear 16 matching the first gear 15 is provided at one end of the material application tube 501, and the diameter of the second gear 16 is larger than the diameter of the first gear 15. Thus, the polymer material can be applied to the sanitary product body at uniform intervals, and the strip-shaped water-absorbing strips and guide strips can be processed and formed.

[0033] In this embodiment, a material guide 17 is installed on the first material application port 10 of the material application barrel 501, and a material drop port connected to the first material application port 10 is opened at the bottom of the material guide 17, the material guide 17 is trumpet-shaped, and the first material application port 10 is a conical structure. Thus, convenient addition of polymer materials is achieved.

[0034] In this embodiment, the bottom of the leveling and shaping rod 601 is provided with an inner groove for shaping the polymer material; the negative pressure adsorption component 603 includes a negative pressure plate 18 with a hollow cavity, and the top of the negative pressure plate is provided with a plurality of adsorption holes 19 connected to the cavity; the bottom of the negative pressure plate 18 is provided with a negative pressure regulator 20, and the negative pressure regulator 20 is connected to the cavity; the driving component 602 includes a cylinder installed on the frame 1, and the output end of the cylinder is connected to the leveling and shaping rod 601. In this way, the sanitary products are adsorbed in intervals through the negative pressure adsorption component 603, and then the cylinder is started to drive the leveling and shaping rod 601 to move downward, and the polymer material on the sanitary products is squeezed and shaped to form a water absorption strip or a guide strip, so as to realize the automation and uniform leveling and shaping of the polymer material and ensure the excellent water absorption performance of the sanitary products.

[0035] In this embodiment, a recycling frame 21 is provided at the bottom of the roller conveyor 2, and the recycling frame 21 is connected to the frame 1. Thus, the recycling of part of the raw materials in the application and extrusion process of the polymer material can be realized, and the waste of materials can be effectively avoided. In this embodiment, a driving motor for driving the roller conveyor 2 to rotate is also included, and its connection can be realized according to the existing technology, and this embodiment will not be repeated one by one.

[0036] When in use, polymer material is added to the feeding barrel 301, and the crushing component 7 on the feeding mechanism 3 is controlled by the control mechanism to crush the polymer material, so that the subsequent material can be applied to the sanitary products more evenly; the crushed material falls into the transmission component 8, and under the cooperation of the second motor 802, the transmission rod 803, and the spiral blade 804, the material is further crushed and transmitted to the filtering mechanism 4; the large particles of polymer material are screened out under the cooperation of the sieve plate 401 and the vibration component 9 in the filtering mechanism 4, so that the material applied to the sanitary products is in a uniform powder state; the filtered material is transmitted to the loading barrel 502 through the receiving funnel 403, and the loading barrel 502 applies the material to the sanitary product body at intervals under the rotation of the application barrel 501, and under the action of the leveling and shaping mechanism 6, the material is shaped into strips or other shapes, and the leveling and shaping rod is designed to be in the required shape according to the design requirements of the product to realize the processing and forming of the water absorption strip and the guide strip.

[0037] The application device of the present invention has a simple structure, reduces the process flow, has high production efficiency, and has a low overall cost. It is suitable for large-scale production and can achieve simultaneous application of multiple polymer materials, thereby increasing the richness, diversity, and design flexibility of the products.

[0038] Under the premise that no conflict occurs, those skilled in the art may freely combine and superimpose the above-mentioned additional technical features.

[0039] It is to be understood that the present invention is described by some embodiments, and it is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A polymer material applying device for a water-absorbent core of a sanitary product, characterized in that: It comprises a frame, on which a roller conveyor belt is installed; A feeding mechanism is installed above the frame, a crushing assembly is installed inside the feeding mechanism, and a conveying assembly is connected to the discharge port of the crushing assembly; A filtering mechanism is installed below the feeding mechanism and is connected to the output end of the transmission component, and a vibration component is installed on the filtering mechanism; The material application mechanism comprises a material application cylinder installed below the filtering mechanism, a material carrying cylinder is coaxially arranged inside the material application cylinder, a first material application opening is provided on the material carrying cylinder, and a plurality of second material application openings matching the first material application opening are provided on the material application cylinder; The leveling and shaping mechanism comprises a leveling and shaping rod installed between two adjacent roller conveyor belts, a driving component for driving the leveling and shaping rod to move up and down is installed above the leveling and shaping rod, and a negative pressure adsorption component for adsorbing sanitary products is provided below the leveling and shaping rod.

2. The polymer material applying device for the water-absorbent core of sanitary products according to claim 1, characterized in that: The feeding mechanism comprises a feeding barrel in a cone shape, and a control valve is arranged at the bottom of the feeding barrel.

3. The polymer material applying device for the water-absorbent core of sanitary products according to claim 2, characterized in that: The crushing assembly includes a first motor installed on the feeding barrel, a driving wheel is provided at the output end of the first motor, a driven wheel is connected to the driving wheel through a conveyor belt, a roller shaft extending into the interior of the feeding barrel is provided on the driving wheel and the driven wheel, and a crushing blade is provided on the roller shaft.

4. The polymer material applying device for the water-absorbent core of sanitary products according to claim 1, characterized in that: The transmission component comprises a tank body, a second motor is mounted on the tank body, a transmission rod is arranged at the output end of the second motor, a spiral blade is arranged on the transmission rod, and the end of the spiral blade is in a sealing knife shape.

5. The polymer material applying device for the water-absorbent core of sanitary products according to claim 1, characterized in that: The filtering mechanism comprises a discharge box, in which a filtering screen plate is inclined, a receiving funnel is provided at the bottom of the screen plate, and the receiving funnel is communicated with the loading barrel; the vibration assembly comprises a vibration motor, and a vibration shaft is provided at the output end of the vibration motor, and the vibration shaft is connected to the screen plate.

6. The polymer material applying device for the water-absorbent core of sanitary products according to claim 5, characterized in that: The application barrel is a cylindrical structure with open ends and is sleeved on the outside of the loading barrel; the application barrel is rotatable relative to the loading barrel, and the rotation of the application barrel makes the first application port of the loading barrel communicate with the second application port of the application barrel in sequence, and the powder in the application barrel falls on the sanitary product body at intervals; support rods for fixing the loading barrel are arranged at both ends of the loading barrel, and a feed pipe and an air intake pipe are arranged at one end of the loading barrel, the feed pipe is connected to the material receiving funnel, and a pressure pump is connected to the air intake pipe.

7. The polymer material applying device for the water-absorbent core of sanitary products according to claim 6, characterized in that: The roller conveyor belt is provided with a first gear, and one end of the material application barrel is provided with a second gear matching the first gear, and the diameter of the second gear is greater than the diameter of the first gear.

8. The polymer material applying device for the water-absorbent core of sanitary products according to claim 1, characterized in that: A material guide is installed on the first material application port of the material application tube, a material drop port connected to the first material application port is provided at the bottom of the material guide, the material guide is trumpet-shaped, and the first material application port is a conical structure.

9. The polymer material applying device for the water-absorbent core of sanitary products according to claim 1, characterized in that: An inner groove for shaping polymer materials is provided at the bottom of the leveling and shaping rod; the negative pressure adsorption component includes a negative pressure plate with a hollow cavity, and a plurality of adsorption holes connected to the cavity are provided on the top of the negative pressure plate; a negative pressure regulator is provided at the bottom of the negative pressure plate, and the negative pressure regulator is connected to the cavity; the driving component includes a cylinder installed on the frame, and the output end of the cylinder is connected to the leveling and shaping rod.

10. The polymer material applying device for the water-absorbent core of sanitary products according to claim 1, characterized in that: A recovery frame is provided at the bottom of the roller conveyor belt, and the recovery frame is connected to the frame.

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