An irradiation sterilization device for cosmetics

Abstract

This invention relates to the field of radiation sterilization technology and discloses an irradiation sterilization device for cosmetics, comprising: support legs and a transmission belt frame mounted on top of them. A rotating shaft is disposed inside the transmission belt frame, and a conveying platform is disposed outside the rotating shaft. An electron beam chamber is disposed outside the transmission belt frame, and a support platform is fixedly mounted on the top of the electron beam chamber. Vertical poles are symmetrically fixed on the top of the support platform, and a retaining pin is disposed on the lower surface of the top of each vertical pole. This invention uses a follow-up shielding part to automatically conform to the top of the cosmetics and block scattered radiation, thus preventing excessive radiation burns to the cosmetics while eliminating irradiation dead zones, resulting in more uniform and thorough sterilization. A linkage part directly links the height of the cosmetics with the conveying speed, adapting to cosmetics of different heights and pre-matching a reasonable irradiation time. A temperature control and speed adjustment part automatically fine-tunes the conveying speed based on temperature feedback, ensuring that the irradiation dose remains stable within the acceptable range.

Description

Technical Field

[0001] This invention relates to the field of radiation sterilization technology, and more specifically to an irradiation sterilization device for cosmetics. Background Technology

[0002] Cosmetics are susceptible to microbial contamination during production, filling, and packaging, affecting product quality and safety. Common microorganisms include bacteria, molds, and yeasts. Incomplete sterilization can lead to product spoilage, sensitization, or even infection. Therefore, effective sterilization of raw materials, semi-finished products, packaging materials, and finished products is a crucial step in ensuring cosmetic safety. Currently, commonly used sterilization methods in the cosmetic industry include moist heat sterilization, dry heat sterilization, chemical fumigation, ultraviolet irradiation, and radiation sterilization. Among these, radiation sterilization, such as gamma rays, electron beams, and X-rays, is increasingly used in the cosmetic field due to its advantages, including being able to be performed at room temperature, leaving no residue, strong penetrating power, and the ability to sterilize sealed products as a whole. The principle of radiation sterilization devices is to use high-energy rays to destroy the DNA or cell structure of microorganisms, thereby achieving sterilization. However, in practical applications, existing radiation sterilization devices for cosmetics still have the following shortcomings: For example, in actual operation, traditional irradiation devices often use fixed radiation sources or single-direction electron beam emission devices. The electron beam outlet at the bottom of the irradiation head is a slit of a fixed size. The slit does not change even if the product is of different heights, resulting in wasted beam current and uneven dosage. This makes it difficult for cosmetic containers to be irradiated evenly during the irradiation process, resulting in incomplete sterilization in some areas. Summary of the Invention

[0003] This invention provides an irradiation sterilization device for cosmetics. Utilizing a mechanically linked structure, through the cooperation of a follow-up shielding unit, a temperature control and speed adjustment unit, and a linkage unit, it achieves uniform irradiation from multiple angles. This triple cooperation of shielding excess radiation, pre-adjusting the conveying speed according to the height of the cosmetics, and precisely adjusting the speed according to the irradiation temperature solves the technical problems of uneven sterilization, excessive radiation burns, or incomplete sterilization in traditional irradiation devices.

[0004] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows: In a first aspect, an irradiation sterilization device for cosmetics includes: support legs and a drive belt frame mounted on top of the support legs; a rotating shaft is disposed inside the drive belt frame, and a conveying platform is disposed outside the rotating shaft; an electron beam chamber is disposed outside the drive belt frame; a support platform is fixedly mounted on the top of the electron beam chamber; uprights are symmetrically fixed on the top of the support platform; a retaining shaft is disposed on the lower surface of the top of the uprights, and an electron beam irradiation head is mounted on its bottom; the electron beam irradiation head has an irradiation outlet at its bottom end; and further includes: The follow-up shielding part is set below the irradiation outlet and above the conveying platform. It is used to fit the top of the cosmetic to block excess radiation and prevent excessive radiation from burning the product. The follow-up shielding part includes a swinging component and an elastic component. The swinging component is installed on the outside of the transmission belt frame and is used to swing up and down adaptively following the height of the cosmetic. The elastic component is connected to the swinging component and is located above the swinging component to provide a reset pull and maintain the fit. The temperature control and speed regulation unit is located on the top of the conveyor belt frame and on one side near the electron beam irradiation head. It is used to automatically adjust the conveying speed and stabilize the irradiation dose according to the temperature after the cosmetic is irradiated. The temperature control speed regulation unit includes a temperature sensing element and a speed regulating element. The temperature sensing element is installed on the side of the transmission belt frame and is used to sense the actual temperature after the cosmetic is irradiated. The speed regulating element is connected to the temperature sensing element and is located at the end of the rotating shaft. The linkage unit connects the follow-up shielding unit and the temperature control speed regulation unit, and is used to adjust the conveying speed in advance according to the height of the cosmetics. The linkage includes a connecting rod and a hinge. The connecting rod connects the swinging component and the speed regulating component to transmit swing displacement. The hinge is located at both ends of the connecting rod to allow for flexible rotation and prevent transmission jamming.

[0005] Furthermore, the swing element includes: The brackets are symmetrically arranged on the outside of the irradiation outlet to provide installation support and fix the position of the swing structure; The pivot, which runs through the interior of the bracket, is used to provide a center of rotation for the swing arm plate and ensure smooth swinging. The crossbeam is installed between the uprights and on one side of the support frame. It is used to connect and fix the support frame and prevent it from shaking or shifting.

[0006] Furthermore, the swing element also includes: The swing arm plate is located on the outside of the pivot and is used to rotate around the pivot and drive the baffle to move synchronously. A baffle, located on the outside of the swing arm plate, is used to fit the top of the cosmetic and block scattered excess rays; The connector is installed through the swing arm plate and the baffle to fix the swing arm plate and the baffle and ensure synchronous movement.

[0007] Furthermore, the elastic element includes: A tension spring, positioned between the bracket and the swing arm plate, provides a pull-back force to keep the baffle in contact with the top of the cosmetic.

[0008] Furthermore, the temperature sensing element includes: The sleeve is fixedly installed on the side of the transmission belt frame to provide guiding support for the internal rods and prevent tilting and jamming. A bimetallic strip is positioned above the drive belt frame and fixed to the drive belt frame in the middle with screws. It is used to generate bending deformation according to temperature changes and output mechanical signals. A thin copper sheet is placed on one side of the bimetallic strip to quickly absorb heat from cosmetics and enhance the sensitivity of the bimetallic strip.

[0009] Furthermore, the speed regulating component includes: The connecting rod, located inside the sleeve, is used to slide within the sleeve and transmit thrust and tension. The lateral bar, located on the outer side of the top of the connecting rod, is used to receive the thrust of the bimetallic strip and drive the friction wheel to move; The friction wheel, located at one end of the horizontal bar, is used to fit against the conical disc, transmit power through friction, and change the rotational speed. The return spring is located between the drive belt frame and the sway bar, and is used to pull the sway bar back to its original position and maintain the initial speed adjustment position. Furthermore, the speed regulating component also includes: The top of the horizontal bar has a slot for installing the friction wheel and guide bar and providing rotation space; Furthermore, the speed regulating component also includes: A drive belt frame is provided on the outside of the rotating shaft to assist in installation; The first conical disc, located on the outside of the rotating shaft, is a transmission belt drive frame used to cooperate with the friction wheel to change the transmission radius and adjust the conveying speed. The second conical disc is located at the center of the transmission belt drive frame on the outside of the rotating shaft and is connected to the outside of the rotating shaft. It is used to cooperate with the first conical disc to clamp the friction wheel and form a stepless speed regulation structure.

[0010] Furthermore, the connecting rod includes: The linkage bar, located at one end of the horizontal bar, is used to transmit tension and drive the horizontal bar to move in advance; The docking bar, located on one side of the swing arm plate, is used to follow the swing arm plate's swing and output height change signals.

[0011] Furthermore, the hinge includes: Hinged joints are respectively set at the intersection of the linkage bar and the docking bar, and are used to flexibly connect the linkage bar and the docking bar to adapt to the swing angle and prevent the transmission from jamming.

[0012] The above-described solution of the present invention has at least the following beneficial effects: By automatically attaching to the top of the cosmetic product to block scattered rays through a follow-up shielding unit, the cosmetic product can be prevented from being burned by excessive rays, while eliminating irradiation dead zones and making sterilization more uniform and thorough. The linkage unit directly links the height of the cosmetic product with the conveying speed, which can adapt to cosmetic products of different heights without manual adjustment. The appropriate irradiation time can be matched in advance, and the conveying speed can be automatically fine-tuned by the temperature control speed adjustment unit based on temperature feedback to ensure that the irradiation dose is always stable within the qualified range, and there will be no under-sterilization or over-irradiation. This results in stable operation, low failure rate, and simple maintenance, meeting the irradiation sterilization requirements of mass production of cosmetics. Attached Figure Description

[0013] The invention will now be further described with reference to the accompanying drawings.

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure provided in an embodiment of the present invention; Figure 2 A three-dimensional structural schematic diagram of the combination of the cassette, electron beam irradiation head, irradiation outlet, and support is provided for embodiments of the present invention; Figure 3 A three-dimensional schematic diagram of the combination of crossbeam, support and irradiation outlet is provided for embodiments of the present invention; Figure 4 This is provided by the embodiments of the present invention. Figure 3 Enlarged schematic diagram of a local structure at point A; Figure 5 This is a schematic diagram of the combined structure of the rotating shaft, tension spring, and swing arm plate provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the combination of baffle, sleeve and connecting rod structure provided in an embodiment of the present invention; Figure 7 This is provided by the embodiments of the present invention. Figure 6 Enlarged schematic diagram of the local structure at point B; Figure 8 This is a schematic diagram of the combined structure of bimetallic strip, thin copper sheet, sleeve, and connecting rod provided in an embodiment of the present invention; Figure 9 This is a schematic diagram of the combined structure of the swing arm plate, baffle, and connector provided in an embodiment of the present invention; Figure 10 This is provided by the embodiments of the present invention. Figure 9 Enlarged structural diagram of a local part at point C; Figure 11 This is provided by the embodiments of the present invention. Figure 8A magnified schematic diagram of the local structure at point D.

[0015] In the diagram: 1. Support leg; 2. Drive belt frame; 3. Rotating shaft; 4. Conveying platform; 5. Electron beam chamber; 6. Support platform; 7. Upright pole; 8. Clamping shaft; 9. Electron beam irradiation head; 10. Irradiation outlet; 11. Bracket; 12. Rotating shaft; 13. Crossbeam; 14. Tension spring; 15. Swing arm plate; 16. Connector; 17. Baffle; 18. Bimetallic strip; 19. Thin copper sheet; 20. Sleeve; 21. Connecting rod; 22. Swing bar; 23. Return spring; 24. Friction wheel; 25. First conical disc; 26. Second conical disc; 27. Guide bar; 28. Linkage bar; 29. ​​Connecting bar; 30. Hinge joint. Detailed Implementation

[0016] Exemplary embodiments of the invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the invention and to fully convey the scope of the invention to those skilled in the art.

[0017] like Figures 1 to 11 As shown, an irradiation sterilization device for cosmetics includes: a support leg 1 and a transmission belt frame 2 mounted on top of it. A rotating shaft 3 is disposed inside the transmission belt frame 2, and a conveyor platform 4 is disposed outside the rotating shaft 3. An electron beam chamber 5 is disposed outside the transmission belt frame 2. A support platform 6 is fixedly mounted on the top of the electron beam chamber 5. Vertical poles 7 are symmetrically fixed on the top of the support platform 6. A retaining shaft 8 and an electron beam irradiation head 9 are disposed on the lower surface of the top of the vertical pole 7 and mounted on its bottom. An irradiation outlet 10 is opened at the bottom of the electron beam irradiation head 9. The device also includes: The follow-up shielding part is set below the irradiation outlet 10 and above the conveying platform 4. It is used to fit the top of the cosmetic to block excess radiation and prevent excessive radiation from burning the product. The follow-up shielding part includes a swinging component and an elastic component. The swinging component is installed on the outside of the transmission belt frame 2 and is used to swing up and down adaptively following the height of the cosmetic. The elastic component is connected to the swinging component and is located above the swinging component to provide a reset pull for the swinging component and maintain the fit. The temperature control and speed regulation unit is located on the top of the transmission belt frame 2 and on one side near the electron beam irradiation head 9. It is used to automatically adjust the conveying speed and stabilize the irradiation dose according to the temperature after the cosmetic is irradiated. The temperature control speed regulation unit includes a temperature sensing element and a speed regulation element. The temperature sensing element is installed on the side of the transmission belt frame 2 to sense the actual temperature after the cosmetic is irradiated. The speed regulation element is connected to the temperature sensing element and is located at the end of the rotating shaft 3. The linkage unit connects the follow-up shielding unit and the temperature control speed regulation unit, and is used to adjust the conveying speed in advance according to the height of the cosmetics. The linkage includes connecting rods and hinges. The connecting rods connect the swinging component and the speed regulating component to transmit swing displacement. The hinges are located at both ends of the connecting rods to allow for flexible rotation and prevent transmission jamming.

[0018] Specifically, the transmission belt frame 2 is used to install the rotating shaft 3 and the conveying platform 4. When the rotating shaft 3 rotates, it can drive the conveying platform 4 to smoothly transport cosmetics. The electron beam chamber 5, the support platform 6, and the upright 7 cooperate with each other to provide a fixed installation position for the electron beam irradiation head 9. The electron beam irradiation head 9 emits rays downward through the irradiation outlet 10 at the bottom to achieve irradiation sterilization of cosmetics. The swinging component of the follow-up shielding part can move up and down with the height of the cosmetics. The elastic component provides a reset pull for the swinging component, so that the swinging component always fits the top of the cosmetics and blocks excess rays.

[0019] In practical application, the cosmetics to be sterilized are first placed on the conveyor platform 4. The rotating shaft 3 drives the conveyor platform 4 to continuously convey the cosmetics from one side to the side closer to the electron beam chamber 5. When the cosmetics move to below the irradiation outlet 10, they will contact the baffle 17. Through the cooperation of the baffle 17, the swing arm plate 15, the rotating shaft 12, and the tension spring 14, the baffle 17 is made to stick to the top of the cosmetics, blocking excess radiation and preventing excessive radiation from burning the cosmetics. At the same time, the linkage unit moves synchronously with the swing arm plate 15 of the swinging component. The swing amplitude is transmitted to the speed regulating component of the temperature control unit through the connecting rod and the hinge. The foundation of the conveyor platform 4 is adjusted in advance according to the height of the cosmetics. Regarding the conveying speed, after the cosmetics are sterilized through the irradiation outlet 10, they will carry heat corresponding to the irradiation dose. The temperature control speed adjustment unit senses the temperature of the cosmetics in real time. If the temperature is too high, it means that the irradiation dose is too high, and at the same time, it will push the rotation speed of the rotating shaft 3 to increase the conveying speed and shorten the irradiation time. If the temperature is too low, it means that the irradiation dose is insufficient, and the speed adjustment component will slow down the rotation speed under the reset action to prolong the irradiation time, so as to ensure uniform and efficient sterilization of cosmetics and avoid insufficient sterilization or excessive burns. It should be noted that the height of the swing arm plate 15 is assembled according to the height of the cosmetics so that the height of the swing arm plate 15 can better and more appropriately determine the height of the baffle 17 that fits the cosmetics.

[0020] like Figures 2 to 5 As shown, the swinging component includes: Support bracket 11 is symmetrically arranged on the outside of irradiation outlet 10 to provide installation support and fix the position of the swing structure; The pivot 12, which passes through the interior of the bracket 11, is used to provide a rotation center for the swing arm plate 15 and ensure smooth swinging. A crossbeam 13 is installed between the uprights 7 and is located on one side of the bracket 11. It is used to connect and fix the bracket 11 and prevent the bracket 11 from shaking or shifting. The swing arm plate 15 is located on the outside of the rotating shaft 12 and is used to rotate around the rotating shaft 12 and drive the baffle 17 to move synchronously. Baffle 17 is set on the outside of swing arm plate 15 to fit the top of cosmetic and block scattered excess rays; The connector 16 is provided through the swing arm plate 15 and the baffle 17 to fix the swing arm plate 15 and the baffle 17 and ensure synchronous movement.

[0021] A tension spring 14 is disposed between the bracket 11 and the swing arm plate 15 to provide a pull-back force so that the baffle 17 always fits against the top of the cosmetic.

[0022] Specifically, the rotating shaft 12 passes through the interior of the bracket 11 and serves as the rotation center of the swing arm plate 15. The swing arm plate 15 is fitted around the outside of the rotating shaft 12 and can swing freely up and down around the rotating shaft 12. The crossbeam 13 connects between the two uprights 7 and can fix the position of the bracket 11 to prevent the bracket 11 and the irradiation outlet 10 from shaking or shifting, thereby improving stability. The connector 16 connects and fixes the swing arm plate 15 to the baffle 17, allowing the baffle 17 to move synchronously with the swing arm plate 15. The baffle 17 is used to fit the top of the cosmetic and block excess radiation. The tension spring 14 is connected between the bracket 11 and the swing arm plate 15 to provide a pull-back force for the swing arm plate 15.

[0023] In practical applications, the cosmetics are driven by the rotating shaft 3 of the conveyor belt. The rotation of the shaft 3 drives the conveyor platform 4 to move. The cosmetics on the conveyor platform 4 are transported to the area below the irradiation outlet 10 and gradually enter the irradiation sterilization working area. After the top of the cosmetics moves to the position of contact with the baffle 17, the cosmetics continue to be transported forward. The top of the cosmetics will continuously push the baffle 17 upward, applying a stable upward force to the baffle 17. After the baffle 17 is subjected to the force, it will take the swing arm plate 15 and rotate upward around the rotating shaft 12. At this time, the tension spring 14 connected between the bracket 11 and the swing arm plate 15 is slowly stretched. The tension spring gradually generates a pulling force back. During this process, the baffle 17 will always be in contact with the top of the cosmetics, blocking excess radiation and preventing excessive radiation exposure to the cosmetics. When the cosmetics are removed, the tension of the tension spring 14 will pull the swing arm plate 15 and the baffle 17 back to their initial positions. Without manual adjustment, it can automatically adapt to the disinfection and sterilization treatment of the cosmetics and continuously complete the work of blocking radiation.

[0024] like Figures 6 to 8 , Figure 11 As shown, the temperature sensing element includes: Sleeve 20 is fixedly installed on the side of the transmission belt frame 2 to provide guiding support for the internal rods and prevent tilting and jamming; A bimetallic strip 18 is disposed above the transmission belt frame 2 and is fixed to the transmission belt frame 2 in the middle by screws. It is used to generate bending deformation according to temperature changes and output mechanical signals. A thin copper sheet 19 is disposed on one side of the bimetallic sheet 18 to quickly absorb the heat from the cosmetic and enhance the sensing sensitivity of the bimetallic sheet 18. Speed ​​regulating components include: The connecting rod 21 is located inside the sleeve 20 and is used to slide within the sleeve 20 and transmit thrust and tension. The horizontal bar 22 is set on the outer side of the top of the connecting rod 21 to receive the thrust of the bimetallic strip 18 and drive the friction wheel 24 to move. The return spring 23 is located between the transmission belt frame 2 and the horizontal bar 22, and is used to pull the horizontal bar 22 back to its original position and maintain the initial speed adjustment position. The top of the horizontal bar 22 has a slot for mounting the friction wheel 24 and the guide bar 27 to provide rotation space; Friction wheel 24 is located at one end of horizontal bar 22 and is used to fit the conical disk, transmit power through friction and change the rotation speed. The guide bar 27 is disposed inside the groove of the horizontal bar 22 and is located at the center of the friction wheel 24; A drive belt frame is provided on the outer side of the rotating shaft 3 to assist in installation; The first conical disc 25 is a transmission belt drive frame located outside the rotating shaft 3, used to cooperate with the friction wheel 24 to change the transmission radius and adjust the conveying speed; The second conical disc 26 is located at the center of the transmission belt drive frame outside the rotating shaft 3 and is connected to the outside of the rotating shaft 3. It is used to cooperate with the first conical disc 25 to clamp the friction wheel 24 and form a stepless speed regulation structure.

[0025] Specifically, the sleeve 20, in conjunction with the connecting rod 21, provides support for the connecting rod 21 to prevent it from tilting due to insufficient weight, thus affecting the operation of the equipment; the bimetallic strip 18, a rectangular thin sheet fixed to the frame with screws in the middle, can be freely bent and deformed at one end to sense the temperature of the cosmetics; the thin copper sheet 19 is attached to the side of the bimetallic strip 18 to absorb the heat of the cosmetics more quickly, promoting a more sensitive response from the bimetallic strip 18; the horizontal bar 22 runs through the top of the connecting rod 21 and can swing under the support of the connecting rod 21; the return spring 23 pulls the horizontal bar 22, providing a return force for the horizontal bar; the slot at the top of the horizontal bar 22 is used to install the guide bar 27 and the friction wheel 24. The guide bar 27 is located inside the slot of the horizontal bar 22 and passes through the center of the friction wheel 24, allowing the friction wheel 24 to rotate freely; the transmission belt drive frame on the outside of the rotating shaft 3 is used to install the first conical disc 25 and the second conical disc 26. The two conical discs are placed opposite each other, and the friction wheel 26... The friction wheel 24 is sandwiched between two conical discs, and drives the conical discs and the rotating shaft 3 to rotate by friction, so as to change the rotation speed. It should be noted that the second conical disc 26 is fixedly connected to the rotating shaft 3 as the active transmission component, while the first conical disc 25 is movably mounted on the transmission belt drive frame and can float slightly along the axial direction. The first conical disc 25 is equipped with a compression spring, which keeps the first conical disc 25 elastically pressed towards the second conical disc 26, elastically clamping the friction wheel 24 between the conical surfaces of the first conical disc 25 and the second conical disc 26, ensuring that the friction wheel 24 is always in close contact with the two conical discs during movement. The rotation of the rotating shaft 3 drives the second conical disc 26 to rotate, and drives the friction wheel 24 to rotate by friction. The friction wheel 24 then drives the first conical disc 25 to rotate synchronously by friction, thereby driving the transmission belt drive frame and the rotating shaft 3 to achieve power transmission. The change of the radial position of the friction wheel 24 between the two conical discs will change the transmission radius, thereby realizing the stepless speed regulation of the conveyor platform 4.

[0026] In practical applications, after the cosmetic has completed the irradiation process, it will continue to move forward with the conveyor platform and slowly approach the position of the bimetallic strip 18 and the thin copper strip 19. At this time, the irradiation heat on the cosmetic will be quickly absorbed by the thin copper strip 19, and then the signal will be transmitted to the inside of the bimetallic strip 18 through the conduction of the thin copper strip 19. After sensing the temperature change, the bimetallic strip 18 will change accordingly. The other end of the bimetallic strip 18 after being heated will slowly bend towards the horizontal bar 22, and push the horizontal bar 22 with the bending force. After the horizontal bar 22 is subjected to force, it will drive the connecting rod 21 to slide inside the sleeve 20, and at the same time stretch the return spring 23. When the horizontal bar 22 moves, it will move the friction wheel 24 and the guide bar 27 at the top position together, and change the contact position between the first conical disk 25 and the second conical disk 26 to adjust the rotation speed. If the temperature of the cosmetic is too high, it means that the irradiation dose is too large. The bimetallic strip 18 bends more, the friction wheel 24 moves towards the larger end of the conical disk, the rotation speed of the rotating shaft 3 increases, and the conveying platform speeds up to shorten the irradiation time of the cosmetic. If the temperature of the cosmetic is normal, the bending amplitude of the bimetallic strip 18 will decrease, the tension of the return spring 23 will pull back the horizontal bar 22, the friction wheel 24 will return to the appropriate position, and the rotating shaft 3 will maintain a stable rotation speed, thereby achieving the functions of automatic sensing and automatic speed adjustment. Without manual intervention, the irradiation dose of the cosmetic can be kept stable. It should be noted that the bimetallic strip 18 is a mature existing technology, and will not be described in detail.

[0027] like Figures 9 to 10 As shown, the connecting rod includes: Linkage bar 28 is set at one end of the horizontal bar 22 and is used to transmit tension and drive the horizontal bar to move in advance; The docking bar 29 is set on one side of the swing arm plate 15 and is used to follow the swing arm plate to swing and output height change signals. The hinge includes: Hinged joints 30 are respectively set at one end where the linkage bar 28 and the docking bar 29 intersect, and are used to flexibly hinge the linkage bar 28 and the docking bar 29 to adapt to the swing angle and prevent the transmission from jamming. Specifically, the linkage bar 28 is installed at one end of the horizontal bar 22 and can move synchronously with the horizontal bar 22; the docking bar 29 is fixed on one side of the swing arm plate 15 and swings up and down with the swing arm plate 15; the hinge joint 30 is connected to the intersection of the linkage bar 28 and the docking bar 29 respectively, flexibly hinges the two rods together, which can rotate freely and stably transmit thrust and pull, smoothly transmit the swinging motion of the swing arm plate 15 to the horizontal bar 22, and realize the mechanical linkage of the two components.

[0028] In practical application, as the cosmetics move with the conveyor platform and gradually lift the baffle 17, the swing arm plate 15 will swing upward around the rotating shaft 12. The docking bar 29 on one side of the swing arm plate 15 will move upward synchronously. When the docking bar 29 moves, the linkage bar 28 is pulled by the hinge joint 30 at the end. The hinge joint 30 will rotate to adapt the angle to avoid the rod getting stuck. After the linkage bar 28 is pulled, it will move the horizontal swing bar 22 synchronously to adjust the position of the friction wheel 24 between the conical discs in advance. If the cosmetic is higher, the swing arm plate 15 swings more, the docking bar 29 pulls the linkage bar 28 a longer distance, and the horizontal bar 22 drives the friction wheel 24 to move to a slow position, so that the conveyor platform slows down in advance. If the cosmetic is shorter, the swing arm plate 15 swings less, the linkage bar 28 pulls a shorter distance, and the friction wheel 24 remains at the normal speed position. Therefore, the conveying speed can be adapted in advance according to the height of the cosmetic to ensure that it cooperates with the subsequent temperature-sensing speed adjustment action, so that the irradiation dose is more uniform and stable.

[0029] Working principle: After the equipment is powered on, the rotating shaft 3 gradually starts to run and gradually drives the conveyor platform 4 to maintain a uniform speed. The tension spring 14 of the follow-up shield naturally contracts, pulling the swing arm plate 15 and the baffle 17 to the low position. The baffle 17 is attached to the upper surface of the conveyor platform 4. The reset spring 23 of the temperature control speed adjustment part pulls the horizontal swing bar 22, so that the friction wheel 24 stops at the initial speed adjustment position of the first conical plate 25 and the second conical plate 26. The whole component is in a standby state. Then, the cosmetics to be sterilized are placed on the conveyor platform 4, and the rotating shaft 3 continues to rotate, driving the conveyor platform 4 to move smoothly below the irradiation outlet 10 of the electron beam irradiation head 9, and the cosmetics gradually enter the irradiation working area. During the operation of the irradiation work area, when the cosmetic moves to the area directly below the irradiation outlet 10, the top will push the baffle 17 upward. After the baffle 17 is subjected to force, it will drive the swing arm plate 15 to swing upward around the pivot 12 on the bracket 11. The tension spring 14 is stretched and generates a pull force. Under the balance between the tension of the tension spring 14 and the pushing force of the cosmetic, the baffle 17 always fits tightly against the top of the cosmetic, completely blocking the excess scattered rays emitted from the irradiation outlet 10, preventing the top of the cosmetic from being burned by excessive rays, and ensuring that the rays can penetrate the cosmetic body evenly, eliminating irradiation dead angles. As the swing arm plate 15 swings upward, it will drive the docking bar 29 on one side to move upward synchronously; the docking bar 29 flexibly pulls the linkage bar 28 through the hinge joint 30 at the end, and the linkage bar 28 then transmits the pulling force to the horizontal swing bar 22, causing the horizontal swing bar 22 to move and adjust the position of the friction wheel 24 between the two conical discs in advance. If the cosmetic is taller, the swing arm plate 15 swings more, the linkage pull distance is longer, the friction wheel 24 moves slowly toward the conical plate, the conveyor platform 4 slows down in advance, and the irradiation time of tall cosmetic bottles is extended to ensure thorough sterilization. If the cosmetic is shorter, the swing arm plate 15 swings less, the linkage pull distance is shorter, the friction wheel 24 remains in the normal position, and the conveyor platform 4 maintains normal speed to avoid excessive irradiation of short-bottle cosmetics. After the cosmetics are sterilized by electron beam irradiation below the irradiation outlet 10, they will continue to move forward carrying heat corresponding to the irradiation dose. When the cosmetics pass through the temperature control speed adjustment section, the thin copper sheet 19 attached to the side of the bimetallic strip 18 will quickly absorb the heat of the cosmetics and conduct the heat to the bimetallic strip 18. After being heated, the bimetallic strip 18 bends towards the horizontal bar 22. The thrust generated by the bending pushes the horizontal bar 22, causing the connecting rod 21 to slide inside the sleeve 20, further fine-tuning the position of the friction wheel 24. If the temperature of the cosmetic is too high, it means that the irradiation dose is too large. The bimetallic strip 18 bends more, the friction wheel 24 moves quickly toward the conical disk, the rotation speed of the rotating shaft 3 increases, the conveying platform 4 speeds up, and the irradiation time of the subsequent cosmetic is shortened. If the temperature of the cosmetic is normal, the bending amplitude of the bimetallic strip 18 decreases, the tension of the return spring 23 pulls back the horizontal bar 22, the friction wheel 24 returns to the stable position, and the conveying platform 4 maintains a constant speed to ensure that the irradiation dose is accurately met. After the sterilized cosmetics are moved out of the working area by the conveyor platform 4, the pushing force of the cosmetics on the baffle 17 disappears. The pull-back force of the tension spring 14 pulls the swing arm plate 15 and the baffle 17 back to their initial low positions. The reset spring 23 resets the horizontal swing bar 22 and the friction wheel 24 to their initial state. The device automatically returns to standby mode, waiting for the next batch of cosmetics to enter, so as to continuously cycle and complete the sterilization operation.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An irradiation sterilization device for cosmetics, comprising: The system comprises: outriggers and a drive belt frame mounted on top of them; a rotating shaft is disposed inside the drive belt frame; a conveying platform is disposed outside the rotating shaft; an electron beam chamber is disposed outside the drive belt frame; a support platform is fixedly mounted on the top of the electron beam chamber; uprights are symmetrically fixed on the top of the support platform; a retaining shaft and an electron beam irradiation head mounted at the bottom of the uprights are disposed on the lower surface of the top of the uprights; and an irradiation outlet is provided at the bottom of the electron beam irradiation head. The system is characterized by further comprising: The follow-up shielding part is set below the irradiation outlet and above the conveying platform. It is used to fit the top of the cosmetic to block excess radiation and prevent excessive radiation from burning the product. The follow-up shielding part includes a swinging component and an elastic component. The swinging component is installed on the outside of the transmission belt frame and is used to swing up and down adaptively following the height of the cosmetic. The elastic component is connected to the swinging component and is located above the swinging component to provide a reset pull and maintain the fit. The temperature control and speed regulation unit is located on the top of the conveyor belt frame and on one side near the electron beam irradiation head. It is used to automatically adjust the conveying speed and stabilize the irradiation dose according to the temperature after the cosmetic is irradiated. The temperature control speed regulation unit includes a temperature sensing element and a speed regulating element. The temperature sensing element is installed on the side of the transmission belt frame and is used to sense the actual temperature after the cosmetic is irradiated. The speed regulating element is connected to the temperature sensing element and is located at the end of the rotating shaft. The linkage unit connects the follow-up shielding unit and the temperature control speed regulation unit, and is used to adjust the conveying speed in advance according to the height of the cosmetics. The linkage includes a connecting rod and a hinge. The connecting rod connects the swinging component and the speed regulating component to transmit swing displacement. The hinge is located at both ends of the connecting rod to allow for flexible rotation and prevent transmission jamming.

2. The irradiation sterilization device for cosmetics according to claim 1, characterized in that: The swing element includes: The brackets are symmetrically arranged on the outside of the irradiation outlet to provide installation support and fix the position of the swing structure; The pivot, which runs through the interior of the bracket, is used to provide a center of rotation for the swing arm plate and ensure smooth swinging. The crossbeam is installed between the uprights and on one side of the support frame. It is used to connect and fix the support frame and prevent it from shaking or shifting.

3. The irradiation sterilization device for cosmetics according to claim 2, characterized in that: The swing element also includes: The swing arm plate is located on the outside of the pivot and is used to rotate around the pivot and drive the baffle to move synchronously. A baffle, located on the outside of the swing arm plate, is used to fit the top of the cosmetic and block scattered excess rays; The connector is installed through the swing arm plate and the baffle to fix the swing arm plate and the baffle and ensure synchronous movement.

4. The irradiation sterilization device for cosmetics according to claim 3, characterized in that: The elastic element includes: A tension spring, positioned between the bracket and the swing arm plate, provides a pull-back force to keep the baffle in contact with the top of the cosmetic.

5. The irradiation sterilization device for cosmetics according to claim 4, characterized in that: The temperature sensing element includes: The sleeve is fixedly installed on the side of the transmission belt frame to provide guiding support for the internal rods and prevent tilting and jamming. A bimetallic strip is positioned above the drive belt frame and fixed to the drive belt frame in the middle with screws. It is used to generate bending deformation according to temperature changes and output mechanical signals. A thin copper sheet is placed on one side of the bimetallic strip to quickly absorb heat from cosmetics and enhance the sensitivity of the bimetallic strip.

6. The irradiation sterilization device for cosmetics according to claim 5, characterized in that: The speed regulating component includes: The connecting rod, located inside the sleeve, is used to slide within the sleeve and transmit thrust and tension. The lateral bar, located on the outer side of the top of the connecting rod, is used to receive the thrust of the bimetallic strip and drive the friction wheel to move; The friction wheel, located at one end of the horizontal bar, is used to fit against the conical disc, transmit power through friction, and change the rotational speed. The return spring is located between the drive belt frame and the sway bar, and is used to pull the sway bar back to its original position and maintain the initial speed adjustment position.

7. The irradiation sterilization device for cosmetics according to claim 6, characterized in that: The speed regulating component also includes: The top of the horizontal bar has a slot for installing the friction wheel and guide bar, and for providing rotation space.

8. The irradiation sterilization device for cosmetics according to claim 7, characterized in that: The speed regulating component also includes: A drive belt frame is provided on the outside of the rotating shaft to assist in installation; The first conical disc, located on the outside of the rotating shaft, is a transmission belt drive frame used to cooperate with the friction wheel to change the transmission radius and adjust the conveying speed. The second conical disc is located at the center of the transmission belt drive frame on the outside of the rotating shaft and is connected to the outside of the rotating shaft. It is used to cooperate with the first conical disc to clamp the friction wheel and form a stepless speed regulation structure.

9. The irradiation sterilization device for cosmetics according to claim 8, characterized in that: The connecting rod includes: The linkage bar, located at one end of the horizontal bar, is used to transmit tension and drive the horizontal bar to move in advance; The docking bar, located on one side of the swing arm plate, is used to follow the swing arm plate's swing and output height change signals.

10. An irradiation sterilization device for cosmetics according to claim 9, characterized in that: The hinge includes: Hinged joints are respectively set at the intersection of the linkage bar and the docking bar, and are used to flexibly connect the linkage bar and the docking bar to adapt to the swing angle and prevent the transmission from jamming.

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