Disinfection device and method for food irradiation sterilization

Abstract

The invention is suitable for the technical field of irradiation sterilization, and provides a disinfection method for food irradiation sterilization, which adopts a disinfection device for food irradiation sterilization to sterilize and disinfect food. The device comprises a device main body, a front conveyor belt, a rear conveyor belt, a mounting bracket, a sterilization cover, an adjusting seat, a base, a mounting cylinder, an irradiation mechanism, a control mechanism, a fine adjustment mechanism and a reversing mechanism, the front conveying belt, the rear conveying belt, the adjusting seat, the fine adjustment mechanism, the reversing mechanism and the control mechanism are matched with one another, so that an unobstructed feeding and discharging channel can be formed, and the continuity of food irradiation is realized; the irradiation mechanism is matched with the adjusting seat, the control mechanism, the fine adjustment mechanism and the reversing mechanism, so that a surrounding irradiation space can be formed, dead-angle-free irradiation on food can be completed, irradiation energy can be ensured to cover the periphery of the food, damage of a traditional overturning mode to the food form is avoided, and the integrity of the food is ensured.

Description

Technical Field

[0001] This invention belongs to the field of irradiation sterilization technology, and particularly relates to a disinfection device and method for food irradiation sterilization. Background Technology

[0002] Food irradiation sterilization technology is a key process in the food processing industry to ensure food safety and extend shelf life. It is widely used in the sterilization of various types of food, including grains, meats, fruits and vegetables, and pre-prepared foods. Its core principle is to destroy the nucleic acid structure of microorganisms through ionizing radiation (such as gamma rays or electron beams) to achieve sterilization. It has advantages such as no chemical residue, temperature influence, and a wide sterilization range, and has become an important support for large-scale production in the modern food industry.

[0003] Existing irradiation sterilization devices mostly adopt a design structure of "single conveyor belt + flipping clamping mechanism + irradiation mechanism". The single conveyor belt is used to transport food, and the flipping clamping mechanism can clamp the food so that all sides of the food can be fully exposed to the irradiation range of the irradiation mechanism, thereby completing the all-round irradiation of the food.

[0004] However, in order to ensure that the food does not slip during the flipping process, the existing flipping clamping mechanism needs to apply a stable clamping force to the food surface. This clamping force can cause irreversible damage to some foods (e.g., crispy or soft foods). At the same time, the flipping force (including centrifugal force and instantaneous impact force) generated during the flipping process will further aggravate the damage to the food.

[0005] Therefore, in view of the above situation, there is an urgent need to develop a disinfection device and method for food irradiation sterilization in order to overcome the shortcomings in current practical applications. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a disinfection device and method for food irradiation sterilization, so as to solve the problems in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A food irradiation sterilization device includes a main body. A front conveyor belt and a rear conveyor belt are respectively installed at the front and rear ends of the main body. A mounting bracket and a sterilization hood are respectively installed in the middle of the main body. Both the mounting bracket and the sterilization hood are located between the front and rear conveyor belts, with the mounting bracket located inside the sterilization hood. Several adjusting seats are arranged horizontally at equal intervals along the direction of travel between the front and rear conveyor belts. One adjusting seat at the end is close to the rear conveyor belt, and one adjusting seat at the beginning is close to the front conveyor belt. There is a gap between adjacent adjusting seats. A base is fixed to the bottom of each adjusting seat. Mounting holes are longitudinally distributed on the top of each adjusting seat, and a mounting cylinder is vertically installed in each mounting hole. The device also includes:

[0009] The irradiation mechanism is symmetrically installed on the left and right sides of the mounting bracket, and the two irradiation mechanisms are respectively located at the left and right ends of the adjustment seat. The end faces of the front and rear ends of the irradiation mechanism are flush with the end faces of the end adjustment seat and the beginning adjustment seat, respectively.

[0010] A control mechanism is mounted on the main body of the device. One end of the control mechanism is fixedly connected to multiple bases, and the other end of the control mechanism is connected to two irradiation mechanisms.

[0011] A fine-tuning mechanism, one end of which is rotatably mounted inside the mounting cylinder, the top of which extends above the top of the adjusting seat, and the top of which intermittently engages with the front and rear conveyor belts, and the bottom of which is located inside the adjusting seat.

[0012] A reversing mechanism is installed inside an adjusting seat. One end of the reversing mechanism slides in a horizontal groove on the side wall of the adjusting seat, and the other end of the reversing mechanism is connected to the bottom of a fine-tuning mechanism.

[0013] As a further technical solution of the present invention, the fine-tuning mechanism includes a fixed sleeve, a bearing, a sealing seat, and a fine-tuning component. The outer wall of the fixed sleeve is rotatably mounted on the inner wall of the mounting cylinder via the bearing. The top end face of the fixed sleeve is flush with the top end face of the adjusting seat. A square groove is provided on the top of the fixed sleeve. One end of the fine-tuning component is mounted on the square groove and extends to the outside of the fixed sleeve. The other end of the fine-tuning component is mounted on the inner wall of the fixed sleeve. The sealing seat is fixed to the bottom of the fixed sleeve and connected to the reversing mechanism.

[0014] As a further technical solution of the present invention, the fine-tuning component includes a fine-tuning motor, a drive wheel, and a fine-tuning wheel. The fine-tuning wheel is rotatably installed in a square groove, and the outer wall of the fine-tuning wheel extends to the top of the fixed sleeve. The fine-tuning motor is fixed on the inner wall of the fixed sleeve, and a drive wheel is fixed on the output end of the fine-tuning motor. The drive wheel is in frictional connection with the outer wall of the fine-tuning wheel.

[0015] As a further technical solution of the present invention, a connecting plate is fixed at the bottom of the sealing seat, and a reversing shaft is vertically fixed at the middle of the connecting plate. The reversing shaft is connected to the reversing mechanism, and the reversing shaft is concentric with the fixed sleeve.

[0016] As a further technical solution of the present invention, the reversing mechanism includes a telescopic member, a connecting guide post, a reversing rack, and a reversing gear. The reversing gear is fixed on the reversing shaft. The reversing rack is located in the adjusting seat and meshes with multiple reversing gears in the same adjusting seat. The connecting guide post passes through multiple adjusting seats and slides with horizontal grooves on multiple adjusting seats. The reversing rack is fixed on the connecting guide post. The telescopic member is fixed in one of the adjusting seats and connected to the connecting guide post.

[0017] As a further technical solution of the present invention, the control mechanism includes a lifting cylinder, a lifting frame, a lifting rack, and a lifting gear set. The lifting cylinder is vertically fixed in the middle of the main body of the device. The lifting frame and the lifting rack are respectively fixed on the output end of the lifting cylinder. The lifting frame is fixedly connected to multiple bases. The lifting rack is symmetrically installed on the left and right sides of the output end of the lifting cylinder. The lifting gear set is symmetrically distributed on both sides of the lifting cylinder. One end of the lifting gear set is installed on the mounting bracket and meshes with the lifting rack. The other end of the lifting gear set is connected to the irradiation mechanism.

[0018] As a further technical solution of the present invention, the irradiation mechanism includes a rotating shaft, an arc-shaped cover, an arc-shaped frame, an irradiation lamp, and anti-collision rubber strips. The rotating shafts are symmetrically mounted on the mounting bracket. Arc-shaped covers are fixed on both rotating shafts, and one end of the rotating shaft is connected to a lifting gear set. Arc-shaped frames are distributed on the inner walls of both arc-shaped covers. Irradiation lamps are installed inside the arc-shaped frames. Anti-collision rubber strips are fixed on the end faces of the two arc-shaped covers that are close to each other.

[0019] A method for food irradiation sterilization using a disinfection device, wherein the above-mentioned food irradiation sterilization device is used to sterilize and disinfect food, and the specific method is as follows:

[0020] 1. In the initial state, the two arc-shaped covers are far apart from each other and in the initial unfolded state. The adjusting seat is lower than the top end face of the front conveyor belt and the rear conveyor belt. The top end face of the fine adjustment mechanism is flush with the top end face of the front conveyor belt and the rear conveyor belt respectively, forming an unobstructed material inlet and outlet channel for the device.

[0021] 2. After the current conveyor belt transfers the food to be sterilized to the fine-tuning mechanism, the front conveyor belt stops working, the food stops on the fine-tuning mechanism, the lifting cylinder drives the lifting frame and the lifting rack to move up synchronously, the lifting frame drives multiple adjustment seats to move up through the base, the lifting rack drives two rotating shafts to rotate in opposite directions through the lifting gear set, the two rotating shafts drive two arc-shaped covers to move closer to each other, the two arc-shaped covers change from the unfolded state to the closed state and form a surrounding irradiation space, the surrounding irradiation lamps irradiate all sides of the food;

[0022] 3. The telescopic component drives the connecting guide post to slide in the horizontal slide groove through telescopic movement. The connecting guide post drives multiple reversing racks to move horizontally synchronously. The reversing racks drive the reversing gears to rotate. The reversing gears drive the reversing shaft to rotate. The reversing shaft drives the fixed sleeve to rotate in the mounting sleeve through the connecting plate and the sealing seat. The fixed sleeve drives the fine adjustment component to rotate and changes the rotation direction of the fine adjustment wheel.

[0023] Fourth, the fine-tuning motor controls the drive wheel to rotate, and the drive wheel drives the fine-tuning wheel to rotate in the square groove. The fine-tuning wheel drives the food on it to move laterally and longitudinally by rotating synchronously with the fixed sleeve and rotating on its own. The food gradually enters the irradiation range of the irradiation mechanism through the lateral and longitudinal movement, so that the originally blocked surface of the food can be irradiated without dead angles.

[0024] 5. After the food is irradiated in a circular manner, the control mechanism reverses its operation and drives the irradiation mechanism from the closed state to the open state. It also drives the adjustment seat to move down, and the adjustment seat drives the fine-tuning mechanism back to the same height as the front and rear conveyor belts. The fine-tuning mechanism then transfers the irradiated food to the rear conveyor belt, which then transfers it to the next processing step. At this time, the front conveyor belt transfers the unirradiated food to the fine-tuning mechanism.

[0025] Compared with the prior art, the beneficial effects of the present invention are:

[0026] Initially, the two irradiation mechanisms are far apart and in their initial deployment state, ensuring that they do not obstruct the conveying of food to the fine-tuning mechanism in the initial state. The adjustment seat is slightly lower than the top end face of the front conveyor belt and the rear conveyor belt. The top end face of the fine-tuning mechanism is flush with the top end face of the front conveyor belt and the rear conveyor belt, respectively, thus forming an unobstructed feeding and discharging channel for the device. This allows the front conveyor belt to convey the food that needs to be sterilized to the fine-tuning mechanism, and the fine-tuning mechanism to convey the sterilized food to the rear conveyor belt, facilitating subsequent processing.

[0027] After the conveyor belt transports the food to be sterilized to the fine-tuning mechanism, the front conveyor belt stops working, allowing the food to remain on the fine-tuning mechanism. The control mechanism, through extension and retraction, can not only move multiple adjustment seats synchronously upwards, but also move two irradiation mechanisms closer together. The adjustment seats, through the fine-tuning mechanism, move the food to a certain height. The two irradiation mechanisms, by moving closer together, can surround the adjustment seats and the food on them, thus forming a surrounding irradiation space. This allows the irradiation mechanisms to effectively irradiate all surfaces of the food, ensuring that the irradiation energy covers the outer perimeter of the food. The fine-tuning mechanism, in conjunction with the reversing mechanism, can drive the food on the adjustment seats to move laterally or longitudinally, allowing previously obscured surfaces of the food to gradually enter the irradiation range of the irradiation mechanisms. Without needing to flip the food, it achieves irradiation without blind spots, ensuring that all outer surfaces of the food are effectively irradiated. This avoids damage to the outer surface shape of the food by flipping, while also reducing positional deviation caused by flipping, further ensuring the accuracy of the irradiation position. At the same time, it shortens the food sterilization time and improves the working efficiency of the device.

[0028] To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the appearance of a food irradiation sterilization device provided in an embodiment of the present invention.

[0030] Figure 2 This is a schematic diagram of the internal structure of a food irradiation sterilization device provided in an embodiment of the present invention.

[0031] Figure 3 for Figure 2 Structural diagram of the central control mechanism, irradiation mechanism, and adjustment seat.

[0032] Figure 4 for Figure 3 A schematic diagram of the structure in its initial state, showing both the intermediate irradiation mechanism and the adjustment seat.

[0033] Figure 5 for Figure 3 A schematic diagram of the structure of the medium-intensity irradiation facility.

[0034] Figure 6 for Figure 3 A schematic diagram of the control mechanism.

[0035] Figure 7 for Figure 4 A schematic diagram of the structure of the center adjustment seat, reversing mechanism and fine adjustment mechanism.

[0036] Figure 8 for Figure 7 A bottom view of the structure of the center adjustment seat, reversing mechanism, and fine-tuning mechanism.

[0037] Figure 9 for Figure 7 Enlarged view of the structure of the center adjustment seat.

[0038] Figure 10 for Figure 7 A schematic diagram of the reversing mechanism.

[0039] Figure 11 for Figure 7 A schematic diagram of the fine-tuning mechanism.

[0040] Figure 12 for Figure 11 Half-section view of the micro-adjustment mechanism.

[0041] Reference numerals: 100-Main body of the device, 110-Mounting bracket, 200-Sterilization hood, 300-Front conveyor belt, 400-Rear conveyor belt, 500-Control mechanism, 510-Lifting cylinder, 520-Lifting frame, 530-Lifting rack, 540-Lifting gear set, 600-Irradiation mechanism, 610-Rotating shaft, 620-Arc-shaped cover, 630-Arc-shaped frame, 640-Irradiation lamp, 650-Anti-collision strip, 700-Adjusting seat, 710-Base 720-Mounting hole, 730-Horizontal slide groove, 740-Mounting cylinder, 800-Reversing mechanism, 810-Telescopic component, 820-Connecting guide post, 830-Reversing rack, 840-Reversing gear, 900-Fine adjustment mechanism, 910-Fixing sleeve, 920-Bearing, 930-Sealing seat, 931-Connecting plate, 932-Reversing shaft, 940-Fine adjustment assembly, 941-Fine adjustment motor, 942-Drive wheel, 943-Fine adjustment wheel, 950-Square groove. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0043] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0044] like Figures 1 to 12As shown, a food irradiation sterilization device provided as an embodiment of the present invention includes a device body 100. A front conveyor belt 300 and a rear conveyor belt 400 are respectively installed at the front and rear ends of the device body 100. A mounting bracket 110 and a sterilization hood 200 are respectively installed in the middle portion of the device body 100. Both the mounting bracket 110 and the sterilization hood 200 are located between the front conveyor belt 300 and the rear conveyor belt 400, and the mounting bracket 110 is located inside the sterilization hood 200. A plurality of adjusting seats 700 are arranged horizontally at equal intervals along the direction of travel between the front conveyor belt 300 and the rear conveyor belt 400. One adjusting seat 700 at the end is close to the rear conveyor belt 400, and one adjusting seat 700 at the beginning is close to the front conveyor belt 300. There is a certain gap between adjacent adjusting seats 700. A base 710 is fixed to the bottom of each adjusting seat 700. Mounting holes 720 are longitudinally distributed on the top of each adjusting seat 700. A mounting cylinder 740 is vertically installed in each mounting hole 720. The system also includes:

[0045] Irradiation mechanism 600, the irradiation mechanism 600 is symmetrically installed on the left and right sides of the mounting bracket 110, and the two irradiation mechanisms 600 are respectively located at the left and right ends of the adjustment seat 700. The end faces of the front and rear ends of the irradiation mechanism 600 are flush with the end faces of the end adjustment seat 700 and the beginning adjustment seat 700, respectively.

[0046] A control mechanism 500 is mounted on the main body 100 of the device. One end of the control mechanism 500 is fixedly connected to a plurality of bases 710, and the other end of the control mechanism 500 is connected to two irradiation mechanisms 600.

[0047] A fine-tuning mechanism 900 is provided, one end of which is rotatably mounted inside the mounting cylinder 740. The top of the fine-tuning mechanism 900 extends above the top of the adjusting seat 700, and the top of the fine-tuning mechanism 900 intermittently engages with the front conveyor belt 300 and the rear conveyor belt 400. The bottom of the fine-tuning mechanism 900 is located inside the adjusting seat 700.

[0048] A reversing mechanism 800 is installed inside an adjusting seat 700. One end of the reversing mechanism 800 is slidably engaged with a horizontal sliding groove 730 opened on the side wall of the adjusting seat 700, and the other end of the reversing mechanism 800 is connected to the bottom of a fine-tuning mechanism 900.

[0049] Initially, the two irradiation mechanisms 600 are far apart and in their initial deployment state, ensuring that they do not obstruct the conveying of food to the fine-tuning mechanism 900 in the initial state. The adjusting seat 700 is slightly lower than the top end face of the front conveyor belt 300 and the rear conveyor belt 400. The top end face of the fine-tuning mechanism 900 is flush with the top end face of the front conveyor belt 300 and the rear conveyor belt 400, thus forming an unobstructed feeding and discharging channel for the device. This allows the front conveyor belt 300 to convey food that needs to be sterilized to the fine-tuning mechanism 900, and the fine-tuning mechanism 900 to convey sterilized food to the rear conveyor belt 400, facilitating subsequent processing.

[0050] After the front conveyor belt 300 conveys the food to be sterilized to the fine-tuning mechanism 900, the front conveyor belt 300 stops working, allowing the food to remain on the fine-tuning mechanism 900. The control mechanism 500, through extension and retraction, can not only move multiple adjustment seats 700 upwards synchronously, but also move the two irradiation mechanisms 600 closer together. The adjustment seats 700, through the fine-tuning mechanism 900, move the food to a certain height. The two irradiation mechanisms 600, by moving closer together, can surround the adjustment seats 700 and the food on them, thus forming a surrounding irradiation space, allowing the irradiation mechanisms 600 to effectively irradiate the food. The irradiation mechanism 600 effectively irradiates all surfaces of the food, ensuring that the irradiation energy covers the outer perimeter of the food. The fine-tuning mechanism 900, in conjunction with the reversing mechanism 800, can drive the food on the adjusting seat 700 to move laterally or longitudinally, so that the previously blocked surfaces of the food gradually enter the irradiation range of the irradiation mechanism 600. Without the need to flip the food, it achieves irradiation without dead angles, ensuring that all outer surfaces of the food are effectively irradiated, avoiding damage to the outer surface shape of the food by flipping, and reducing positional deviation caused by flipping, further ensuring the accuracy of the irradiation position. At the same time, it shortens the food sterilization and disinfection time and improves the working efficiency of the device.

[0051] In a preferred embodiment, the front conveyor belt 300 and the rear conveyor belt 400 travel in the same direction, and the widths of the front conveyor belt 300, the rear conveyor belt 400, and the adjusting seat 700 are all the same, which can ensure the effective transport of food.

[0052] like Figures 3 to 12As shown, in a preferred embodiment of the present invention, the fine-tuning mechanism 900 includes a fixed sleeve 910, a bearing 920, a sealing seat 930, and a fine-tuning component 940. The outer wall of the fixed sleeve 910 is rotatably mounted on the inner wall of the mounting cylinder 740 via the bearing 920. The top end face of the fixed sleeve 910 is flush with the top end face of the adjusting seat 700. A square groove 950 is provided on the top of the fixed sleeve 910. One end of the fine-tuning component 940 is mounted in the square groove 950 and extends to the outside of the fixed sleeve 910. The other end of the fine-tuning component 940 is mounted on the inner wall of the fixed sleeve 910. The sealing seat 930 is fixed to the bottom of the fixed sleeve 910 and connected to the reversing mechanism 800.

[0053] The fine-tuning assembly 940 includes a fine-tuning motor 941, a drive wheel 942, and a fine-tuning wheel 943. The fine-tuning wheel 943 is rotatably mounted in a square groove 950, and the outer wall of the fine-tuning wheel 943 extends to the top of the fixing sleeve 910. The fine-tuning motor 941 is fixed on the inner wall of the fixing sleeve 910, and the drive wheel 942 is fixed on the output end of the fine-tuning motor 941. The drive wheel 942 is in frictional connection with the outer wall of the fine-tuning wheel 943.

[0054] The bottom of the sealing seat 930 is fixed with a connecting plate 931, and a reversing shaft 932 is vertically fixed in the middle of the connecting plate 931. The reversing shaft 932 is connected to the reversing mechanism 800, and the reversing shaft 932 is concentric with the fixed sleeve 910.

[0055] The reversing mechanism 800 can drive the reversing shafts 932 on multiple fine-tuning mechanisms 900 to rotate. The reversing shafts 932 can drive the fixed sleeve 910 to rotate within the mounting sleeve 740 through the connecting plate 931 and the sealing seat 930. The fixed sleeve 910 drives the fine-tuning component 940 to rotate. The fine-tuning motor 941 can control the drive wheel 942 to rotate. The drive wheel 942 drives the fine-tuning wheel 943 to rotate within the square groove 950. By rotating synchronously with the fixed sleeve 910 and rotating on its own axis, the fine-tuning wheel 943 can drive the food on it to move laterally or longitudinally, so that the previously blocked surface of the food gradually enters the irradiation range of the irradiation mechanism 600. Without the need to flip the food, the food can be irradiated without dead angles, ensuring that all outer surfaces of the food can be effectively irradiated. This avoids flipping and damaging the outer surface shape of the food, while reducing the positional offset caused by flipping, further ensuring the accuracy of the irradiation position.

[0056] In a preferred embodiment, the fixed sleeve 910 is further provided with a wireless transmission module and a power module. The wireless transmission module can connect the fine-tuning motor 941 to the control system set in the device, so that the control system can control the working state of the fine-tuning motor 941 through the wireless transmission module. The power module can provide an effective power source for the fine-tuning motor 941.

[0057] The outer surface of the drive wheel 942 is coated with a non-slip coating with good friction, which increases the friction between it and the fine-tuning wheel 943, thereby achieving effective driving of the fine-tuning wheel 943.

[0058] like Figures 3 to 12 As shown, in a preferred embodiment of the present invention, the reversing mechanism 800 includes a telescopic member 810, a connecting guide post 820, a reversing rack 830, and a reversing gear 840. The reversing gear 840 is fixed on the reversing shaft 932. The reversing rack 830 is located in the adjusting seat 700 and meshes with multiple reversing gears 840 in the same adjusting seat 700. The connecting guide post 820 passes through multiple adjusting seats 700 and slides in cooperation with horizontal sliding grooves 730 on multiple adjusting seats 700. The reversing rack 830 is fixed on the connecting guide post 820. The telescopic member 810 is fixed in one of the adjusting seats 700 and connected to the connecting guide post 820.

[0059] The telescopic component 810, through telescoping, can drive the connecting guide post 820 to slide within the horizontal slide groove 730. The connecting guide post 820 drives multiple reversing racks 830 to move horizontally synchronously. The reversing racks 830 can drive the reversing gear 840 to rotate, and the reversing gear 840 can drive the reversing shaft 932 to rotate. The reversing shaft 932, through the connecting plate 931 and the sealing seat 930, can drive the fixed sleeve 910 to rotate within the mounting cylinder 740. The fixed sleeve 910 drives the fine-tuning component 940 to rotate, thereby changing the rotation direction of the fine-tuning wheel 943. This allows it to quickly adjust the lateral or longitudinal position of the food, so that the previously blocked surface of the food gradually enters the irradiation range of the irradiation mechanism 600. Without the need to flip the food, it can achieve irradiation of the food without dead angles, ensuring that all outer surfaces of the food can be effectively irradiated, and avoiding damage to the outer surface shape of the food by flipping.

[0060] In a preferred embodiment, the connecting guide post 820 is preferably a cylindrical guide post. Both the upper and lower ends of the connecting guide post 820 are flat and slide in contact with the horizontal slide groove 730. The connecting guide post 820 is provided with through holes for connecting the reversing rack 830.

[0061] The telescopic component 810 is preferably a pneumatic telescopic cylinder or a hydraulic telescopic cylinder.

[0062] like Figures 2 to 9 As shown, in a preferred embodiment of the present invention, the control mechanism 500 includes a lifting cylinder 510, a lifting frame 520, a lifting rack 530, and a lifting gear set 540. The lifting cylinder 510 is vertically fixed in the middle of the device body 100. The lifting frame 520 and the lifting rack 530 are respectively fixed on the output end of the lifting cylinder 510. The lifting frame 520 is fixedly connected to a plurality of bases 710. The lifting rack 530 is symmetrically installed on the left and right sides of the output end of the lifting cylinder 510. The lifting gear set 540 is symmetrically distributed on both sides of the lifting cylinder 510. One end of the lifting gear set 540 is installed on the mounting bracket 110 and meshes with the lifting rack 530. The other end of the lifting gear set 540 is connected to the irradiation mechanism 600.

[0063] The lifting gear set 540 is a transmission structure composed of two meshing gears. One gear is rotatably mounted on the mounting bracket 110 and meshes with the lifting rack 530, while the other gear is fixed on the irradiation mechanism 600. Thus, during the upward movement of the lifting rack 530, the two gears can drive the irradiation mechanism 600 to rotate towards the adjusting seat 700. During the downward movement of the lifting rack 530, the two gears can drive the irradiation mechanism 600 to rotate away from the adjusting seat 700.

[0064] After the front conveyor belt 300 conveys the food to be sterilized to the fine-tuning mechanism 900, the front conveyor belt 300 stops working, allowing the food to remain on the fine-tuning mechanism 900. The lifting cylinder 510 can drive the lifting frame 520 and the lifting rack 530 to move upward synchronously. The lifting frame 520 drives multiple adjusting seats 700 to move upward through the base 710. The lifting rack 530 can drive the two irradiation mechanisms 600 from the unfolded state to the closed state through the lifting gear set 540, so that the two irradiation mechanisms 600 can complete the outer circumference of the adjusting seat 700 and the food on it, thereby forming a circumferential irradiation space. This allows the irradiation mechanisms 600 to effectively irradiate all sides of the food, ensuring that the irradiation energy can cover the outer perimeter of the food, ensuring the irradiation quality of the food, and cooperating with the fine-tuning mechanism 900 and the reversing mechanism 800 to complete the rapid and thorough irradiation of the food.

[0065] like Figures 2 to 9As shown, in a preferred embodiment of the present invention, the irradiation mechanism 600 includes a rotating shaft 610, an arc-shaped cover 620, an arc-shaped frame 630, an irradiation lamp 640, and anti-collision strips 650. The rotating shafts 610 are symmetrically mounted on the mounting bracket 110. An arc-shaped cover 620 is fixed on each of the two rotating shafts 610, and one end of the rotating shaft 610 is connected to the lifting gear set 540. Arc-shaped frames 630 are distributed on the inner walls of the two arc-shaped covers 620. An irradiation lamp 640 is installed inside the arc-shaped frame 630. Anti-collision strips 650 are fixed on the end faces of the two arc-shaped covers 620 that are close to each other.

[0066] Initially, the two arc-shaped covers 620 are far apart and in their initial unfolded state, ensuring that they do not obstruct the food from being conveyed to the fine-tuning mechanism 900. When the lifting rack 530 and the adjusting seat 700 move upward synchronously, the lifting rack 530 drives the two rotating shafts 610 to rotate in opposite directions through the lifting gear set 540. The two rotating shafts 610 drive the two arc-shaped covers 620 to move closer to each other, causing the two arc-shaped covers 620 to change from the unfolded state to the closed state, thus completing the outer surround of the adjusting seat 700 and the food on it, thereby forming a surround irradiation space. This allows the irradiation lamps 640 on the two arc-shaped covers 620 to effectively irradiate all sides of the food, ensuring that the irradiation energy can cover the outer perimeter of the food, ensuring the irradiation quality of the food, and cooperating with the fine-tuning mechanism 900 and the reversing mechanism 800 to complete the rapid and thorough irradiation of the food.

[0067] In a preferred embodiment, the arc-shaped cover 620 is preferably a semi-circular frame, and the maximum width between the inner walls of the two arc-shaped covers 620 is greater than the length of the adjustment seat 700.

[0068] A method for food irradiation sterilization using a disinfection device, wherein the above-mentioned food irradiation sterilization device is used to sterilize and disinfect food, and the specific method is as follows:

[0069] In the initial state, the two arc-shaped covers 620 are far apart and in the initial unfolded state, ensuring that they do not obstruct the food from being conveyed to the fine-tuning mechanism 900 in the initial state. The adjusting seat 700 is slightly lower than the top end face of the front conveyor belt 300 and the rear conveyor belt 400. The top end face of the fine-tuning mechanism 900 is flush with the top end face of the front conveyor belt 300 and the rear conveyor belt 400 respectively, thereby forming an unobstructed feeding and discharging channel for the device.

[0070] 2. After the front conveyor belt 300 conveys the food to be sterilized to the fine-tuning mechanism 900, the front conveyor belt 300 stops working, allowing the food to stop on the fine-tuning mechanism 900. The lifting cylinder 510 can drive the lifting frame 520 and the lifting rack 530 to move upward synchronously. The lifting frame 520 drives multiple adjustment seats 700 to move upward through the base 710. The lifting rack 530 drives two rotating shafts 610 to rotate in opposite directions through the lifting gear set 540. The two rotating shafts 610 drive two arc-shaped covers 620 to move closer to each other, so that the two arc-shaped covers 620 change from an unfolded state to a closed state, and complete the outer surround of the adjustment seat 700 and the food on it, thereby forming a surrounding irradiation space. This allows the irradiation lamps 640 on the two arc-shaped covers 620 to effectively irradiate all sides of the food, ensuring that the irradiation energy can cover the outer perimeter of the food, ensuring the irradiation quality of the food, and cooperating with the fine-tuning mechanism 900 and the reversing mechanism 800 to complete the rapid and thorough irradiation of the food.

[0071] 3. The telescopic component 810 can drive the connecting guide post 820 to slide within the horizontal slide groove 730 by telescoping. The connecting guide post 820 drives multiple reversing racks 830 to move horizontally synchronously. The reversing racks 830 can drive the reversing gear 840 to rotate. The reversing gear 840 drives the reversing shaft 932 to rotate. The reversing shaft 932 can drive the fixed sleeve 910 to rotate within the mounting sleeve 740 through the connecting plate 931 and the sealing seat 930. The fixed sleeve 910 drives the fine-tuning component 940 to rotate, thereby changing the rotation direction of the fine-tuning wheel 943.

[0072] Fourth, the fine-tuning motor 941 can control the drive wheel 942 to rotate. The drive wheel 942 drives the fine-tuning wheel 943 to rotate within the square groove 950. By rotating synchronously with the fixed sleeve 910 and rotating on its own axis, the fine-tuning wheel 943 can drive the food on it to move laterally or longitudinally, so that the previously blocked surface of the food gradually enters the irradiation range of the irradiation mechanism 600. Without the need to flip the food, the food can be irradiated without dead angles, ensuring that all outer surfaces of the food can be effectively irradiated, avoiding damage to the outer surface shape of the food by flipping, and reducing the positional offset caused by flipping, further ensuring the accuracy of the irradiation position.

[0073] 5. After the food is irradiated in a circular manner, the control mechanism 500 reverses its operation and drives the irradiation mechanism 600 from the closed state to the open state. It also drives the adjustment seat 700 to move down. The adjustment seat 700 drives the fine-tuning mechanism 900 back to the same height as the front conveyor belt 300 and the rear conveyor belt 400. The fine-tuning mechanism 900 transfers the irradiated food to the rear conveyor belt 400, which then transfers it to the next processing step. At this time, the front conveyor belt 300 transfers the unirradiated food to the fine-tuning mechanism 900 for sterilization and disinfection.

[0074] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A food irradiation sterilization device, comprising a main body, a front conveyor belt and a rear conveyor belt respectively installed at the front and rear ends of the main body, a mounting bracket and a sterilization hood respectively installed in the middle part of the main body, the mounting bracket and the sterilization hood being located between the front and rear conveyor belts, with the mounting bracket located inside the sterilization hood, a plurality of adjusting seats arranged horizontally at equal intervals along the direction of travel between the front and rear conveyor belts, one adjusting seat at the end being close to the rear conveyor belt, and one adjusting seat at the beginning being close to the front conveyor belt, with a gap between adjacent adjusting seats, a base fixed to the bottom of each adjusting seat, and mounting holes longitudinally distributed on the top of each adjusting seat, with a mounting cylinder vertically installed in each mounting hole, characterized in that... Also includes: The irradiation mechanism is symmetrically installed on the left and right sides of the mounting bracket, and the two irradiation mechanisms are respectively located at the left and right ends of the adjustment seat. The end faces of the front and rear ends of the irradiation mechanism are flush with the end faces of the end adjustment seat and the beginning adjustment seat, respectively. A control mechanism is mounted on the main body of the device. One end of the control mechanism is fixedly connected to multiple bases, and the other end of the control mechanism is connected to two irradiation mechanisms. A fine-tuning mechanism, one end of which is rotatably mounted inside the mounting cylinder, the top of which extends above the top of the adjusting seat, and the top of which intermittently engages with the front and rear conveyor belts, and the bottom of which is located inside the adjusting seat. A reversing mechanism is installed inside an adjusting seat. One end of the reversing mechanism slides in a horizontal groove on the side wall of the adjusting seat, and the other end of the reversing mechanism is connected to the bottom of a fine-tuning mechanism.

2. The food irradiation sterilization disinfection device according to claim 1, characterized in that, The fine-tuning mechanism includes a fixed sleeve, a bearing, a sealing seat, and a fine-tuning component. The outer wall of the fixed sleeve is rotatably mounted on the inner wall of the mounting cylinder via the bearing. The top end face of the fixed sleeve is flush with the top end face of the adjusting seat. A square groove is formed on the top of the fixed sleeve. One end of the fine-tuning component is mounted in the square groove and extends to the outside of the fixed sleeve. The other end of the fine-tuning component is mounted on the inner wall of the fixed sleeve. The sealing seat is fixed to the bottom of the fixed sleeve and connected to the reversing mechanism.

3. The food irradiation sterilization disinfection device according to claim 2, characterized in that, The fine-tuning assembly includes a fine-tuning motor, a drive wheel, and a fine-tuning wheel. The fine-tuning wheel is rotatably mounted in a square groove, and the outer wall of the fine-tuning wheel extends to the top of the fixed sleeve. The fine-tuning motor is fixed on the inner wall of the fixed sleeve, and a drive wheel is fixed on the output end of the fine-tuning motor. The drive wheel is in frictional connection with the outer wall of the fine-tuning wheel.

4. The food irradiation sterilization disinfection device according to claim 2, characterized in that, A connecting plate is fixed to the bottom of the sealing seat, and a reversing shaft is vertically fixed to the middle of the connecting plate. The reversing shaft is connected to the reversing mechanism and is concentric with the fixed sleeve.

5. The food irradiation sterilization disinfection device according to claim 4, characterized in that, The reversing mechanism includes a telescopic component, a connecting guide post, a reversing rack, and a reversing gear. The reversing gear is fixed on the reversing shaft. The reversing rack is located inside the adjusting seat and meshes with multiple reversing gears in the same adjusting seat. The connecting guide post passes through multiple adjusting seats and slides with horizontal grooves on multiple adjusting seats. The reversing rack is fixed on the connecting guide post. The telescopic component is fixed inside one of the adjusting seats and connected to the connecting guide post.

6. The food irradiation sterilization disinfection device according to claim 1, characterized in that, The control mechanism includes a lifting cylinder, a lifting frame, a lifting rack, and a lifting gear set. The lifting cylinder is vertically fixed in the middle of the main body of the device. The lifting frame and the lifting rack are fixed on the output end of the lifting cylinder. The lifting frame is fixedly connected to multiple bases. The lifting rack is symmetrically installed on the left and right sides of the output end of the lifting cylinder. The lifting gear set is symmetrically distributed on both sides of the lifting cylinder. One end of the lifting gear set is installed on the mounting bracket and meshes with the lifting rack. The other end of the lifting gear set is connected to the irradiation mechanism.

7. The food irradiation sterilization disinfection device according to claim 6, characterized in that, The irradiation mechanism includes a rotating shaft, an arc-shaped cover, an arc-shaped frame, an irradiation lamp, and anti-collision strips. The rotating shafts are symmetrically mounted on the mounting bracket. Arc-shaped covers are fixed on both rotating shafts, and one end of each rotating shaft is connected to a lifting gear assembly. Arc-shaped frames are distributed on the inner walls of both arc-shaped covers. Irradiation lamps are installed inside the arc-shaped frames. Anti-collision strips are fixed on the adjacent end faces of the two arc-shaped covers.

8. A method for sterilizing food by irradiation, characterized in that, The food is sterilized and disinfected using the food irradiation sterilization device as described in any one of claims 1-7, and the specific method is as follows:

1. In the initial state, the two arc-shaped covers are far apart from each other and in the initial unfolded state. The adjusting seat is lower than the top end face of the front conveyor belt and the rear conveyor belt. The top end face of the fine adjustment mechanism is flush with the top end face of the front conveyor belt and the rear conveyor belt respectively, forming an unobstructed material inlet and outlet channel for the device.

2. After the current conveyor belt transfers the food to be sterilized to the fine-tuning mechanism, the front conveyor belt stops working, the food stops on the fine-tuning mechanism, the lifting cylinder drives the lifting frame and the lifting rack to move up synchronously, the lifting frame drives multiple adjustment seats to move up through the base, the lifting rack drives two rotating shafts to rotate in opposite directions through the lifting gear set, the two rotating shafts drive two arc-shaped covers to move closer to each other, the two arc-shaped covers change from the unfolded state to the closed state and form a surrounding irradiation space, the surrounding irradiation lamps irradiate all sides of the food; 3. The telescopic component drives the connecting guide post to slide in the horizontal slide groove through telescopic movement. The connecting guide post drives multiple reversing racks to move horizontally synchronously. The reversing racks drive the reversing gears to rotate. The reversing gears drive the reversing shaft to rotate. The reversing shaft drives the fixed sleeve to rotate in the mounting sleeve through the connecting plate and the sealing seat. The fixed sleeve drives the fine adjustment component to rotate and changes the rotation direction of the fine adjustment wheel. Fourth, the fine-tuning motor controls the drive wheel to rotate, and the drive wheel drives the fine-tuning wheel to rotate in the square groove. The fine-tuning wheel drives the food on it to move laterally and longitudinally by rotating synchronously with the fixed sleeve and rotating on its own. The food gradually enters the irradiation range of the irradiation mechanism through the lateral and longitudinal movement, so that the originally blocked surface of the food can be irradiated without dead angles.

5. After the food is irradiated in a circular manner, the control mechanism reverses its operation and drives the irradiation mechanism from the closed state to the open state. It also drives the adjustment seat to move down, and the adjustment seat drives the fine-tuning mechanism back to the same height as the front and rear conveyor belts. The fine-tuning mechanism then transfers the irradiated food to the rear conveyor belt, which then transfers it to the next processing step. At this time, the front conveyor belt transfers the unirradiated food to the fine-tuning mechanism.

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