Sterilization device and sterilization method for paper cup production

Abstract

The invention discloses a sterilization device and a sterilization method for paper cup production, and relates to the technical field of paper cup production. The device comprises a main frame, a transmission belt is installed at the top end of the main frame, one side of the transmission belt is connected with a driving motor, multiple rows of cup holders are evenly installed on the transmission belt along the outer side face, and paper cups are installed in the cup holders; a disinfection bin is fixedly connected to the middle of the top end of the main frame, an ultrasonic driving power supply is mounted on one side in the disinfection bin, a plurality of ultrasonic transducers are uniformly distributed at the bottom of the disinfection bin, and each ultrasonic transducer is electrically connected with the ultrasonic driving power supply; a water inlet pipe is mounted on one side of the disinfection bin; a plurality of atomizing nozzles are uniformly mounted at the bottom of the water inlet pipe; a plurality of ultraviolet germicidal lamps are mounted on one side of the bottom of the disinfection bin. According to the paper cup sterilization device, the hollow cup holder is fixed on the transmission belt, so that the paper cups can be conveniently positioned, the surface of the paper cups can be completely covered during sterilization, and the paper cups are subjected to ultrasonic sterilization and ultraviolet sterilization, so that the killing effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of paper cup production, and in particular to a sterilization device and a sterilization method for paper cup production. Background Art

[0002] Paper cups are common drinking utensils in people's daily lives. They are easy to use, clean, hygienic and easy to clean, so people use them as temporary drinking utensils. Disinfection and sterilization are necessary steps in the production of paper cups.

[0003] Patent specification CN209679096U discloses a paper cup production disinfection and sterilization device, which includes a transmission device, an ozone generator, and a disinfection box. Drive rollers are installed at both ends of the transmission device, and the drive rollers are connected by a transmission belt. The rotating shaft of the drive roller is connected to the motor placed inside the transmission device. A disinfection box is installed in the middle of the top of the transmission device, and ozone generators are installed on both sides of the middle of the transmission device.

[0004] The shortcomings of this technical solution are: first, the sterilization device evenly arranges paper cup placement openings on the transmission belt for inserting paper cups to prevent the paper cups from tipping over during transportation on the conveyor belt. The bottom part of the paper cup is inside the paper cup placement opening. During ozone disinfection, the outer side of the bottom of the paper cup is in a closed state and cannot effectively contact the ozone. That is, the existing paper cup disinfection device cannot take into account the comprehensive disinfection of the paper cup shell while positioning the paper cup; secondly, the concentration of ozone is high when used as a disinfecting gas, and it has a certain bleach smell at this time. That is, the paper cup treated with chemical gas has a residual smell of chemical products, which reduces the user experience of the paper cup.

[0005] Currently, no effective solutions have been proposed for the problems in related technologies. Summary of the Invention

[0006] The purpose of the present invention is to provide a sterilization device and sterilization method for paper cup production. The technical problems to be solved are as follows: when the existing paper cup sterilization device sterilizes the paper cup, the outer part of the bottom of the paper cup cannot be effectively sterilized after it is fixed, and some chemical disinfection gas odor will remain after sterilization, affecting the user experience.

[0007] The purpose of the present invention can be achieved through the following technical solutions:

[0008] A sterilization device for paper cup production comprises a main frame, a transmission belt is installed at the top of the main frame, a drive motor is connected to one side of the transmission belt, multiple rows of cup racks are evenly installed along the outer side of the transmission belt, paper cups are installed inside the cup racks, and the surrounding side surfaces of the cup racks are hollow; a disinfection chamber is fixedly connected to the middle part of the top of the main frame, an ultrasonic drive power supply is installed on one side of the disinfection chamber, and multiple ultrasonic transducers are evenly arranged at the bottom of the disinfection chamber, each of the ultrasonic transducers is electrically connected to the ultrasonic drive power supply; a water inlet pipe is installed on one side of the disinfection chamber, the liquid inlet to the water inlet pipe is pure water, and multiple atomizing nozzles are evenly installed at the bottom of the water inlet pipe; multiple ultraviolet sterilization lamps are installed on one side of the bottom of the disinfection chamber.

[0009] As a further solution of the present invention: a plurality of locking holes are evenly arranged on the bottom surface of the cup holder in a direction perpendicular to the moving direction of the transmission belt, and a fastening bolt is adapted to be installed between the bottom of the transmission belt and the locking holes.

[0010] As a further solution of the present invention: the bottom of the disinfection chamber is provided with a cup opening, and heat dissipation holes are provided on both sides of the top. A support plate is fixedly connected to the middle of the disinfection chamber, and the ultrasonic driving power supply is installed on one side of the top of the support plate, and one end extends to the outside of the disinfection chamber.

[0011] As a further solution of the present invention: a water distribution pipe is provided at the bottom end of the water inlet pipe, the top end of the atomizing nozzle is connected to the water distribution pipe, and the bottom end passes through the support plate and extends below its bottom surface, and the atomizing nozzle corresponds one to one with the adjacent cup rack in the vertical direction.

[0012] As a further solution of the present invention: the ultrasonic transducer corresponds one-to-one to the atomizing nozzle and is located directly above the cup holder.

[0013] As a further solution of the present invention: the moving direction of the paper cup passes through the atomizing nozzle and the ultraviolet sterilization lamp in sequence.

[0014] A sterilization method for a sterilization device for paper cup production, comprising the following steps:

[0015] S1. Place paper cups into the row-shaped cup racks one by one and fix them, then start the transmission belt to transport them;

[0016] S2. Pure water is injected into the water inlet pipe and sprayed onto the inner and outer surfaces of the paper cup through the atomizing nozzle. At the same time, the ultrasonic driving power supply drives the ultrasonic transducer to work;

[0017] S3, the paper cup moves to the bottom of the ultraviolet sterilization lamp for ultraviolet irradiation sterilization;

[0018] S4. The cup holder moves to the bottom end of the transmission belt to release the paper cup, and then rotates back to the initial position for cyclic sterilization.

[0019] Beneficial effects of the present invention:

[0020] In the present invention, rows of hollow cup racks are fixedly mounted on a conveyor belt, a disinfection chamber is mounted in the middle of the top of a main frame, an atomizing nozzle and an ultrasonic transducer are mounted at the bottom of the disinfection chamber in a vertically corresponding manner to each cup rack, and a water inlet pipe for supplying purified water and an ultrasonic driving power supply for driving the ultrasonic transducer are mounted inside the disinfection chamber. Thus, when paper cups move on the conveyor belt, on the one hand, they can be accurately positioned by the cup racks fixed on the conveyor belt, facilitating the spraying of atomized water mist serving as an ultrasonic transmission medium onto the inner and outer surfaces of the paper cups. On the other hand, the hollow state of the cup racks can also provide support for comprehensive disinfection of the inner and outer surfaces of the paper cups, avoiding the situation where some parts of the inner and outer surfaces of the paper cups are not thoroughly disinfected, thereby achieving the comprehensive disinfection function of the ultrasonic transducer on the positioned paper cups.

[0021] Furthermore, a row of ultraviolet sterilization lamps is installed on one side of the ultrasonic transducer in the disinfection chamber. The paper cups are sterilized by ultraviolet irradiation immediately after ultrasonic disinfection. Since the cell membrane or cell wall of the bacteria will be broken by resonance during ultrasonic sterilization, the ultraviolet light can directly reach the inside of the bacteria during subsequent ultraviolet sterilization, thereby improving the killing effect. That is, through the collaborative sterilization method of ultrasonic sterilization followed by ultraviolet sterilization, an integrated disinfection solution for bacteria is constructed, which improves the killing effect of bacteria. In addition, since ultrasonic sterilization and ultraviolet sterilization are both physical sterilization, the problem of drug residues remaining on the surface of the paper cup during chemical sterilization in the existing technology is effectively avoided, and the problem of residual odor affecting the use of the paper cup is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a bottom view of the present invention;

[0025] Figure 3 This is a partial exploded view of the cup holder of the present invention;

[0026] Figure 4 It is a schematic diagram of the partial structure of the top of the disinfection chamber of the present invention;

[0027] Figure 5 It is a structural schematic diagram of the bottom of the disinfection chamber of the present invention;

[0028] Figure 6 This invention Figure 5 A magnified detail of point A in the middle.

[0029] In the figure: 1. Main frame; 2. Transmission belt; 3. Drive motor; 4. Cup holder; 5. Disinfection chamber; 6. Ultrasonic drive power supply; 7. Ultrasonic transducer; 8. Water inlet pipe; 9. Atomizing nozzle; 10. Ultraviolet germicidal lamp; 11. Paper cup; 12. Lock hole; 13. Fastening bolt; 14. Cup opening; 15. Heat dissipation vent; 16. Support plate. DETAILED DESCRIPTION

[0030] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0031] like Figures 1 to 6 As shown, a sterilization device for paper cup production includes a main frame 1, a transmission belt 2 is installed on the top of the main frame 1, a drive motor 3 is connected to one side of the transmission belt 2, and multiple rows of cup racks 4 are evenly installed along the outer side of the transmission belt 2, and the side of the cup racks 4 is hollow; a disinfection chamber 5 is fixedly connected to the middle of the top of the main frame 1, an ultrasonic driving power supply 6 is installed on one side of the inside of the disinfection chamber 5, and multiple ultrasonic transducers 7 are evenly arranged and installed on the bottom of the disinfection chamber 5, and each ultrasonic transducer 7 is electrically connected to the ultrasonic driving power supply 6; a water inlet pipe 8 is installed on one side of the disinfection chamber 5, and the liquid in the water inlet pipe 8 is pure water. A plurality of atomizing nozzles 9 are evenly installed on the bottom of the water inlet pipe 8; a plurality of ultraviolet sterilization lamps 10 are installed on one side of the bottom of the disinfection chamber 5.

[0032] It should be noted that four supporting feet are provided along the edge of the bottom of the main frame 1, and a transmission belt frame is fixedly connected between the tops of the supporting feet. A plurality of transmission rollers are installed along the horizontal plane in the middle of the transmission belt frame. The outer sides of the transmission rollers at both ends of the transmission belt frame are fixedly connected to side connecting plates. The tops of the supporting feet and the side connecting plates are fixed by bolts. Preferably, locking straight slots are provided at the bottom of the side connecting plates for adjusting the locking distance between the supporting feet at both ends of the main frame 1. The distance between the transmission rollers at both ends of the main frame 1 is adjustable, which is used to adjust the tension of the transmission belt 2 coated on the outer sides of the transmission rollers, thereby improving the stability of the cup holder 4 during transmission, which is conducive to the atomizing nozzle 9 to accurately spray pure water onto the inner and outer surfaces of the paper cup 11;

[0033] The cup holder 4 is hollowed out as a whole, including but not limited to water holes evenly and densely arranged on the circumference and side surfaces. The middle part can also be completely hollowed out with only the bottom and top ends connected by steel bars, so as to support the paper cup 11 while maximally allowing the outer circumference of the paper cup 11 to leak out.

[0034] Ultrasonic wave conduction requires the help of a medium, so a water inlet pipe 8 is installed at the disinfection chamber 5 to cooperate with the atomizing nozzle 9 to spray a small amount of pure water onto the inner and outer surfaces of the paper cup 11, and then the surface of the paper cup 11 is ultrasonically sterilized by ultrasonic wave. The principle is that ultrasonic wave frequency (20kHz-10kHz) is changed. MHz) induces high-frequency vibrations of different frequencies in the purified water. Under lower-frequency sound waves, tiny cavitation bubbles are formed inside the purified water. Under high-frequency sound waves, the bubbles quickly collapse, releasing instantaneous high-temperature energy. The energy destroys the cell wall / membrane structure of the microorganisms, inactivating the microorganisms and achieving the sterilization function. The purified water sprayed in this process only serves as a medium for transmitting ultrasonic waves. It is small in quantity and evaporates quickly after the action, and will not cause softening or deformation of the paper cup 11. At the same time, when irradiating, the ultraviolet germicidal lamp 10 transmits the UVC band (wavelength 200-280nm) to the DNA / RNA of the microorganisms for absorption, causing adjacent thymine (or uracil) to form dimers, thereby blocking the replication and transcription of the microorganisms and achieving the sterilization function. Its advantage is that the ultraviolet germicidal lamp 10 and ultrasonic sterilization are both physical sterilization. Therefore, the user will not be affected by the sterilization residues of chemical products during the use of the paper cup 11, thereby improving the user experience of the paper cup 11 under the premise of multiple sterilization and avoiding the odor problem of chemical residues.

[0035] like Figures 3 to 6 As shown, a plurality of lock holes 12 are evenly arranged on the bottom surface of the cup holder 4 along the direction perpendicular to the moving direction of the transmission belt 2, and a fastening bolt 13 is adapted and installed between the bottom of the transmission belt 2 and the lock hole 12;

[0036] It should be noted that since the transmission belt 2 is in a bent state when it rotates to the end point of the main frame 1, a threaded hole is set at the bottom end of the cup holder 4, and a plurality of fastening bolts 13 are fixedly connected to the transmission belt 2 along the bending line direction. When the transmission belt 2 rotates, the cup holder 4 can always be kept in a state of being connected to the transmission belt 2, so that the disinfection work of the paper cup 11 can be carried out in a continuous cycle.

[0037] A cup port 14 is provided at the bottom of the disinfection chamber 5, and heat dissipation ports 15 are provided on both sides of the top. A support plate 16 is fixedly connected to the middle of the disinfection chamber 5. The ultrasonic driving power supply 6 is installed on one side of the top of the support plate 16, and one end extends to the outside of the disinfection chamber 5;

[0038] A water distribution pipe is provided at the bottom end of the water inlet pipe 8, the top end of the atomizing nozzle 9 is connected to the water distribution pipe, and the bottom end thereof passes through the support plate 16 and extends to the bottom surface of the support plate 16. The number of the atomizing nozzles 9 corresponds to the number of the cup holders 4, and the atomizing nozzles 9 are located directly above the adjacent cup holders 4;

[0039] The ultrasonic transducer 7 corresponds to the atomizing nozzle 9 one by one and is located just above the cup holder 4;

[0040] It should be noted that since the ultrasonic transducer 7 and the atomizing nozzle 9 are adjacent (see Figure 6 ), and are all located directly above the cup holder 4. Therefore, during disinfection, the water inlet pipe 8 first introduces purified water into each atomizing nozzle 9, and then the atomizing nozzle 9 sprays a small amount of purified water onto the inner and outer surfaces of the paper cup 11 placed inside the cup holder 4. Subsequently, the ultrasonic driving power supply 6 converts the mains electricity into a high-frequency alternating current model that matches the ultrasonic transducer 7, driving the ultrasonic transducer 7 to switch the ultrasonic frequency. The purified water attached to the inner and outer surfaces of the paper cup 11 acts as a medium for acoustic wave transmission, thereby achieving the aforementioned function of rupturing the bacterial cell wall and inactivating the bacteria.

[0041] In particular, the direction of rotation of the transmission belt 2 is clockwise ( Figure 1 ), that is, the paper cup 11 is sterilized by ultraviolet light immediately after ultrasonic sterilization, with a predetermined sterilization order of ultrasonic sterilization first and then ultraviolet sterilization, that is, the moving direction of the paper cup 11 is to pass through the atomizing nozzle 9 and the ultraviolet germicidal lamp 10 in sequence. The reason is that, since ultrasonic sterilization will cause physical damage to the cell membrane or cell wall of the bacteria, after the cell wall of the bacteria is destroyed, the UVC band light irradiated by the ultraviolet germicidal lamp 10 can more easily enter the cell to destroy the genetic information, thereby improving the irradiation effect of the ultraviolet germicidal lamp 10.

[0042] A sterilization method for a sterilization device for paper cup production, comprising the following steps:

[0043] S1. Place the paper cups 11 in the row of cup holders 4 and secure them, then start the transmission belt 2 for transport. Since the cup holders 4 and transmission belt 2 are fixedly connected, the paper cups 11 remain stable during both the transport and sterilization processes, unaffected by the atomized water mist and the vibration of the transmission belt 2, thereby achieving precise positioning and sterilization.

[0044] S2. Pure water is injected into the water inlet pipe 8 and sprayed onto the inner and outer surfaces of the paper cup 11 by the atomizing nozzle 9. Simultaneously, the ultrasonic driving power supply 6 drives the ultrasonic transducer 7. Since the sprayed substance is a small amount of pure water in an atomized state and serves only as a temporary medium for propagating sound waves, it quickly evaporates from the surface of the paper cup 11 after ultrasonic sterilization by the ultrasonic transducer 7. This assists in ultrasonic sterilization while preventing the problem of soaking and deformation of the paper cup 11. Furthermore, the problem of residual chemical reagent odor on the surface of the paper cup 11 after chemical sterilization in the prior art is avoided.

[0045] S3. The paper cup 11 moves toward the bottom of the ultraviolet germicidal lamp 10 for ultraviolet sterilization. At this point, the germs have been pre-disinfected by ultrasound, and the cell walls or cell membranes have been damaged, making it easier for ultraviolet light to reach the genetic information location inside the bacteria. At this time, ultraviolet light sterilization is performed, which further improves the sterilization effect on the basis of ultrasonic sterilization.

[0046] S4. The cup holder 4 moves to the bottom end of the transmission belt 2 to release the paper cup 11, and rotates to the initial position for cyclic sterilization; that is, the hollow cup holder 4 facilitates the positioning of the paper cup 11 without affecting the disinfection of the inner and outer surfaces thereof, and can also achieve cyclic sterilization of a large number of paper cups 11 with the help of the fixed connection of the transmission belt 2, thereby improving the sterilization efficiency of the paper cups 11.

[0047] The above is a detailed description of an embodiment of the present invention. However, the content described is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A sterilizing device for paper cup production, comprising a main frame (1), a transmission belt (2) being mounted on the top of the main frame (1), a drive motor (3) being connected to one side of the transmission belt (2), and characterized in that: The transmission belt (2) is evenly mounted with multiple rows of cup holders (4) along the outer side surface, paper cups (11) are mounted inside the cup holders (4), and the side surfaces of the cup holders (4) are hollowed out; a disinfection chamber (5) is fixedly connected to the middle of the top of the main frame (1), an ultrasonic drive power supply (6) is mounted on one side of the disinfection chamber (5), and multiple ultrasonic transducers (7) are evenly arranged at the bottom of the disinfection chamber (5), and each of the ultrasonic transducers (7) is electrically connected to the ultrasonic drive power supply (6); a water inlet pipe (8) is mounted on one side of the disinfection chamber (5), the liquid in the water inlet pipe (8) is pure water, and multiple atomizing nozzles (9) are evenly mounted at the bottom of the water inlet pipe (8); and multiple ultraviolet sterilization lamps (10) are mounted on one side of the bottom of the disinfection chamber (5).

2. A sterilizing device for paper cup production according to claim 1, characterized in that: The bottom surface of the cup holder (4) is evenly provided with a plurality of locking holes (12) in a direction perpendicular to the moving direction of the transmission belt (2), and a fastening bolt (13) is adapted and installed between the bottom of the transmission belt (2) and the locking holes (12).

3. A sterilizing device for paper cup production according to claim 1, characterized in that: The bottom of the disinfection chamber (5) is provided with a cup opening (14), and both sides of the top are provided with heat dissipation openings (15). The middle of the disinfection chamber (4) is fixedly connected with a support plate (16). The ultrasonic driving power supply (6) is installed on one side of the top of the support plate (16), and one end extends to the outside of the disinfection chamber (5).

4. A sterilizing device for paper cup production according to claim 3, characterized in that: A water distribution pipe is provided at the bottom end of the water inlet pipe (8), the top end of the atomizing nozzle (9) is connected to the water distribution pipe, and the bottom end passes through the support plate (16) and extends to below the bottom surface thereof, and the atomizing nozzle (9) corresponds one to one with the adjacent cup holder (4) in the vertical direction.

5. The sterilizing device for paper cup production according to claim 1, characterized in that: The ultrasonic transducer (7) corresponds one-to-one to the atomizing nozzle (9) and is located directly above the cup holder (4).

6. A sterilizing device for paper cup production according to claim 1, characterized in that: The moving direction of the paper cup (11) passes through the atomizing nozzle (9) and the ultraviolet sterilization lamp (10) in sequence.

7. The sterilization method of a sterilizing device for paper cup production according to claim 6, comprising the following steps: S1, placing paper cups (11) in order into the row-shaped cup rack (4) to fix them, and starting the transmission belt (2) to transmit them; S2, injecting pure water into the water inlet pipe (8) and spraying it onto the inner and outer surfaces of the paper cup (11) through the atomizing nozzle (9), while the ultrasonic driving power supply (6) drives the ultrasonic transducer (7) to work; S3, the paper cup (11) moves toward the bottom of the ultraviolet sterilization lamp (10) to be sterilized by ultraviolet irradiation; S4, the cup holder (4) moves to the bottom end of the transmission belt (2) to release the paper cup (11), and then rotates back to the initial position for cyclic sterilization.

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