An irradiation sterilization conveying device applied to a food packaging production line

CN117284585BActive Publication Date: 2026-06-16ANHUI BEIZIJINXI IRRADIATION TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ANHUI BEIZIJINXI IRRADIATION TECH CO LTD
Filing Date
2023-10-23
Publication Date
2026-06-16

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Abstract

The application discloses an irradiation sterilization conveying device applied to a food packaging production line, relates to the technical field of irradiation sterilization, and has the technical scheme as follows: a main machine cover is arranged, an irradiation device and a drive control cabinet are arranged on the upper end of the main machine cover, an entrance for feeding packaging products is further arranged on the main machine cover, an irradiation control mechanism is further arranged in the main machine cover and is used for adjusting the radiation dose according to the specifications of the packaging products, the irradiation control mechanism comprises a detection assembly used for detecting the specifications of the packaging products, a clamping assembly arranged at the lower end of the irradiation device and used for clamping the packaging products, and a driving assembly used for controlling the up-down movement of the clamping assembly. The technical scheme can automatically adjust the corresponding irradiation dose according to the specifications of the food packaging boxes through the cooperation between the structures, the flow production of the production line is more efficient, and the efficiency loss caused by manual adjustment is reduced.
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Description

Technical Field

[0001] This invention relates to the field of irradiation sterilization technology, and more specifically to an irradiation sterilization conveying device applied to a food packaging production line. Background Technology

[0002] Irradiation sterilization is an effective method that uses electromagnetic waves generated by ionizing radiation to kill most microorganisms on materials. The rays used for sterilization include electron beams, X-rays, and gamma rays, which can control the growth of microorganisms or kill them in specific ways. Since irradiation sterilization is achieved by utilizing the penetrating effect of radiation, it does not require opening the packaging of the product to be sterilized, thus ensuring that the inside of the product packaging remains sealed during the sterilization process and is not contaminated by bacteria from the external environment. Therefore, this sterilization method is widely used in the food and medical processing fields.

[0003] Irradiation sterilization is a type of auxiliary equipment used in the mass production of sterilized products. Its unique characteristics necessitate specialized manufacturing and installation. In food irradiation sterilization production lines, the varying sizes and volumes of packaging boxes in different batches necessitate different irradiation doses. Excessive irradiation can lead to nutrient deficiencies and affect food quality, while insufficient doses result in incomplete sterilization. Currently, the coordination between irradiation transmission equipment is low, making it difficult to automatically adjust the irradiation sterilization dose for different batches of food packaging boxes. After one type of food packaging box completes mass production line sterilization, manual adjustments are required to adapt the equipment to meet the sterilization needs of other sizes. This inability to self-adjust irradiation dose and the low coordination between equipment in the transmission structure hinders production line efficiency and increases factory production costs.

[0004] Therefore, based on this, a design or technical improvement is proposed to solve the above-mentioned problems.

[0005] The above content is only used to help understand the technical solution of the present invention and does not represent an admission that the above content is the closest prior art. Summary of the Invention

[0006] The purpose of this invention is to overcome the above-mentioned shortcomings and provide an irradiation sterilization conveying device for use in food packaging production lines.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] An irradiation sterilization conveying device for a food packaging production line includes a main unit cover. An irradiation device and a drive and control unit are mounted on the upper end of the main unit cover. The main unit cover also has an inlet for feeding packaged products.

[0009] The radiation control mechanism, located inside the main unit housing, is used to adjust the radiation dose according to the specifications of the packaged product.

[0010] The radiation control mechanism includes a detection component for detecting the specifications of the packaged product, a clamping component located at the lower end of the irradiation device for holding the packaged product, and a drive component for controlling the up-and-down movement of the clamping component.

[0011] Furthermore, the drive assembly includes two sets of first threaded screws disposed inside the main unit housing and connected to the drive control chassis, and a travel frame that moves up and down on the two sets of first threaded screws.

[0012] The clamping assembly includes a base plate mounted on a travel frame and having a mounting groove, a bidirectional threaded screw with bearings at both ends connected in the mounting groove, and two sets of clamping arms that move relative to each other on the bidirectional threaded screw.

[0013] The detection components include a pressure-sensitive component disposed inside the main unit housing and located at the lower end of the clamping component for detecting the quality of the packaged product, and an infrared scanner disposed on the inner wall of the main unit housing for detecting the volume of the packaged product.

[0014] Furthermore, the pressure-sensitive component includes a support plate that slides within a limiting groove on both sides of the inner wall of the main unit cover, a pressure-sensitive detection plate located inside the main unit cover and at the lower end of the support plate, and a first spring with one end on the support plate and the other end on the pressure-sensitive detection plate.

[0015] Furthermore, the main unit housing is also equipped with a rotating mechanism that works in conjunction with the radiation control mechanism to apply uniform irradiation to the packaged product.

[0016] Furthermore, the rotating mechanism includes a gear fixedly connected to a connecting shaft mounted on the base plate and a rack mounted on one side of a rear slot opened on the main unit cover. The gear and rack mesh with each other, and the base plate is connected to the travel frame by a bearing.

[0017] Furthermore, the main unit cover is also provided with a back cover plate, and the back cover plate is slidably connected to a limiting slider that is connected to the bearing between the connecting shaft through a limiting groove. On the side of the limiting slider away from the base plate, there is also a limiting plate that is fixedly connected to the first threaded screw.

[0018] Furthermore, the radiation control mechanism is also equipped with a delivery mechanism for quantitatively conveying packaged products;

[0019] The delivery mechanism includes a sliding control assembly for quantitatively controlling the delivery of packaged products onto a support plate and a conveying assembly for transporting the packaged products.

[0020] The sliding control assembly includes a lower slide that is limited in its vertical movement by a limiting slide rod set on the main unit cover and is located between the main unit cover and the transmission assembly, and a valve control assembly that controls the vertical movement of the lower slide.

[0021] The valve control assembly includes a second spring with one end mounted on the main unit cover and the other end mounted on the lower slide, as well as an electromagnetic component that drives the lower slide to move.

[0022] The electromagnetic components include an electromagnet and an iron core rod that are adjusted inside the second spring and respectively installed on the main unit cover and the lower slide, as well as two sets of inductive switches installed inside the lower slide and the main unit cover to control the on / off state of the electromagnet.

[0023] Furthermore, freely rotatable rollers are provided at the holes on the inclined surface of the lower slide and on the conveyor belt.

[0024] Furthermore, the radiation control mechanism is also equipped with an unloading mechanism for transferring the irradiated packaged products;

[0025] The unloading mechanism includes a sliding component mounted on the main unit cover for guiding the packaged product to slide to the external conveying structure, an abutment plate mounted on the travel frame for controlling the movement of the sliding component, and a reset component mounted on the main unit cover for keeping the sliding component reset after movement.

[0026] Furthermore, the material sliding assembly includes an upper sliding platform that moves between the inlets and a pressure-receiving side plate that is disposed on the upper sliding platform and is limited to sliding between the limiting slots opened on the main body cover. The end of the pressure-receiving side plate near the inside of the main body cover is triangular.

[0027] The reset assembly includes a fixed frame mounted on the main unit cover, a limiting sleeve rod with one end mounted on the pressure side plate and the other end slidably connected to the fixed frame, and a third spring sleeved with the limiting sleeve rod and with one end mounted on the pressure side plate and the other end mounted on the fixed frame.

[0028] Compared with existing technologies, the beneficial effects of this solution are: the solution can automatically adjust the corresponding irradiation dose according to the size of the food packaging box through the cooperation between the structures, making the production line more efficient and reducing the efficiency loss caused by manual adjustment in the middle.

[0029] The solution achieves a higher degree of automation in the production line through the high degree of coordination between the various structural groups. At the same time, the coordination between different transmission structures and irradiation dose adjustment structures ensures that the transmission continuity of the production line can be maintained while adjusting the irradiation dose for different sizes of food packaging, further enhancing the stability of the production line operation. Attached Figure Description

[0030] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0031] Figure 1 This is a frontal three-dimensional schematic diagram of the present invention;

[0032] Figure 2 This is a side view of the present invention;

[0033] Figure 3 This is the present invention. Figure 1 Schematic diagram of the internal structure of the main unit cover;

[0034] Figure 4 This is a rear-view stereoscopic diagram of the present invention;

[0035] Figure 5 This is the present invention. Figure 1 A three-dimensional schematic diagram of the lower-middle sliding table;

[0036] Figure 6 This is the present invention. Figure 1 A three-dimensional schematic diagram of the main unit cover;

[0037] Figure 7 This is the present invention. Figure 1 A three-dimensional side sectional view of the main unit cover;

[0038] Figure 8 This is a three-dimensional disassembly diagram of the unloading mechanism in this invention;

[0039] Figure 9 This is a three-dimensional schematic diagram of the radiation control mechanism in this invention;

[0040] Figure 10 This is a three-dimensional schematic diagram of the rotating mechanism in this invention;

[0041] Figure 11 This is the present invention. Figure 1 A three-dimensional cross-sectional view of the main unit cover;

[0042] Figure 12 This is a side sectional perspective view of the present invention.

[0043] In the diagram: 1. Main unit cover; 11. Irradiation device; 12. Drive control chassis; 13. Inlet; 14. Limiting slide groove; 2. First threaded screw; 21. Travel frame; 22. Base plate; 221. Mounting slot; 23. Bidirectional threaded screw; 24. Clamping arm; 25. Support plate; 26. First spring; 27. Pressure sensing plate; 28. Infrared scanner; 3. Connecting shaft; 31. Gear; 32. Rear slot; 33. 34. Rack; 35. Back cover plate; 36. Limiting groove; 37. Limiting slider; 48. Limiting plate; 49. Lower slide table; 40. Second spring; 41. Electromagnet; 42. Iron core rod; 43. Limiting slide rod; 44. Inductive switch; 45. Conveyor belt; 46. Roller; 57. Limiting slot hole; 58. Abutment plate; 59. Upper slide table; 50. Pressure-bearing side plate; 51. Fixing frame; 52. Limiting sleeve rod; 53. Third spring. Detailed Implementation

[0044] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] like Figure 1-12The illustrated irradiation sterilization conveying device for a food packaging production line includes a main unit housing 1. An irradiation device 11 and a drive and control unit 12 are mounted on the upper end of the main unit housing 1. The main unit housing 1 also has an inlet 13 for feeding packaged products. Furthermore, it includes a radiation control mechanism located inside the main unit housing 1, used to adjust the radiation dose according to the specifications of the packaged products. The radiation control mechanism includes a detection component for detecting the specifications of the packaged products, a clamping component located directly below the irradiation device 11 for holding the packaged products, and a drive component for controlling the up-and-down movement of the clamping component. Because irradiation sterilization production lines are specialized, the coordination between equipment is relatively low. When used in food packaging sterilization operations, the size and specifications of food packaging may change due to different trade demands, thus altering the quantity of food packaged per batch. Therefore, the required irradiation dose for food sterilization will also vary. After a single batch of products is sterilized, workers need to adjust the radiation dose according to the specifications of the next batch of food packaging. The size and weight of the food inside the packaging are measured to manually adjust the irradiation production line so that the entire line can work together to meet the needs of changing the irradiation dose. This greatly increases the workload and reduces the efficiency. Therefore, the radiation control mechanism set in the device can realize the automatic adjustment of the irradiation dose. The specific working process is as follows: when the packaged product is transported to the radiation control mechanism, it is clamped by the clamping component at its upper end. Then, the detection component set in the radiation control structure detects the volume and weight of the product packaging and transmits the detection data to the central control console of the production line. The control console calculates the corresponding optimal irradiation dose and then uses the drive component to drive the clamping component to clamp the product packaging for upward movement. By controlling the movement speed of the clamping component, the time that the packaged product is exposed to radiation from the drive control box 12 can be changed. Through the working cooperation between these components, the effect of automatically adjusting the irradiation dose according to the specifications of the product packaging can be achieved.

[0046] In one embodiment, the drive assembly includes two sets of first threaded screws 2 disposed inside the main unit cover 1 and connected to the drive control chassis 12, and a travel frame 21 that moves up and down on the two sets of first threaded screws 2; the clamping assembly includes a base plate 22 disposed on the travel frame 21 and having a mounting groove 221, a bidirectional threaded screw 23 with bearings at both ends connected to the mounting groove 221, and two sets of clamping arms 24 that move relative to each other on the bidirectional threaded screw 23; the clamping arms 24 are slidably engaged with the mounting groove 221, thereby limiting the clamping arms 24 during the rotation of the bidirectional threaded screw 23 and the movement of the clamping arms 24; the detection assembly includes a component disposed inside the main unit cover 1 and located at the lower end of the clamping assembly for detecting the quality of packaged products. The pressure-sensitive component and the infrared scanner 28 installed on the inner wall of the main unit cover 1 for detecting the volume of the packaged product are used to perform the specific detection process for the product packaging specifications. When the product is transported to the upper end of the pressure-sensitive component, the pressure detected by the pressure-sensitive component will be used to calculate the product's quality data. At the same time, the infrared scanner 28 located inside the main unit cover 1 will scan the product packaging to obtain volume data. Based on the product's quality and volume, the required irradiation dose will be calculated and converted into the time of exposure to the radiation generated by the drive and control chassis 12. The time is controlled by adjusting the rotation speed of the first threaded screw 2 to change the movement speed of the stroke frame 21 at its upper end, thereby achieving precise control.

[0047] In one embodiment, the pressure-sensitive component includes a support plate 25 that slides within limiting grooves 14 provided on both sides of the inner wall of the main unit cover 1, a pressure-sensitive detection plate 27 located inside the main unit cover 1 and at the lower end of the support plate 25, and a first spring 26 with one end on the support plate 25 and the other end on the pressure-sensitive detection plate 27. When the spring 26 is conveyed to the upper end of the support plate 25, it will press the support plate 25 downward, thereby causing the first spring 26 to contract. The pressure received by the first spring 26 will be transmitted to the upper end of the pressure-sensitive detection plate 27 and then fed back to the central control console. The control console will then use the pressure to detect the internal quality. The purpose of the first spring 26 is to adapt to products of different specifications and sizes. When the product is too large, its contraction will be greater, so that the product is always in the middle position of the clamping arm 24, which is convenient for the clamping arm 24 to clamp the product. At the same time, after the product leaves the surface of the support plate 25, the support plate 25 will be reset under the action of the first spring 26, which is convenient for supporting the next set of products.

[0048] In one embodiment, the main unit cover 1 is further provided with a rotating mechanism that works in conjunction with the radiation control mechanism to apply uniform irradiation to the packaged product. The rotating mechanism includes a gear 31 fixedly connected to a connecting shaft 3 on the base plate 22 and a rack 33 on one side of a rear groove 32 on the main unit cover 1. The gear 31 and the rack 33 mesh with each other. The base plate 22 is connected to the travel frame 21 by a bearing. The main unit cover 1 is also provided with a back cover plate 34. The back cover plate 34 is slidably connected to a limiting slider 36 that is connected to the connecting shaft 3 by a limiting groove 35. The side of the limiting slider 36 away from the base plate 22 is also provided with a first screw... The limiting plate 37, which is fixedly connected between the threaded rods 2, allows the base plate 22 to rotate when the clamping arm 24 clamps the packaged product for upward transport. The gear 31 at its rear end meshes with the rack 33. Since the limiting slider 36 is limited to the inside of the limiting groove 35 and moves up and down, the meshing between the gear 31 and the rack 33 is stable. As a result, when the base plate 22 moves upward a fixed distance, the number of rotations remains fixed. This ensures that the product can be moved upward at a speed that is adjusted according to specifications to change the irradiation dose without affecting the all-round uniform irradiation effect, thereby improving the comprehensiveness of sterilization.

[0049] In one embodiment, the radiation control mechanism is further equipped with a delivery mechanism for quantitatively conveying packaged products; the delivery mechanism includes a sliding control component for quantitatively controlling the delivery of packaged products to the support plate 25 and a transmission component for conveying packaged products; the sliding control component includes a lower slide 4 located between the main unit cover 1 and the transmission component, which is vertically limited by a limiting slide rod 44 provided on the main unit cover 1; and a valve control component for controlling the vertical movement of the lower slide 4; the valve control component includes a second spring 41 with one end provided on the main unit cover 1 and the other end provided on the lower slide 4, and an electromagnetic component for driving the movement of the lower slide 4; the electromagnetic component includes an electromagnet 42 and an iron core, which are adjusted inside the second spring 41 and respectively provided on the main unit cover 1 and the lower slide 4. The rod 43 and two sets of inductive switches 45, respectively installed inside the lower slide 4 and the main unit cover 1, are used to control the on / off state of the electromagnet 42. Rotatable rollers 47 are installed at the holes on the inclined surface of the lower slide 4 and on the conveyor belt 46. Since the radiation control mechanism achieves irradiation transport by clamping the product with a clamping assembly, it can clamp and irradiate sterilize one product at a time. Therefore, it requires the cooperation of a specially designed delivery mechanism to complete a highly automated assembly line operation. Specifically, the product is transported via the conveyor belt 46, and the lower slide 4 guides the product to the upper end of the support plate 25 for detection. The initial state of the lower slide 4 is that the electromagnet 42 is already energized, which will attract... The iron core rod 43 causes the second spring 41 to contract, and the lower slide 4 moves downward to its highest point, maintaining the same plane as the conveyor belt 46. This allows the products to be transported to the upper end of the lower slide 4 by the conveyor belt 46. When a group of products is transported to the upper end of the lower slide 4, it will press against the surface of the lower slide 4, causing the inductive switch 45 to detect the object and thus control the current inside the electromagnet 42 to disconnect. As a result, the attraction between the electromagnet 42 and the iron core rod 43 is lost. Then, under the rebound force of the second spring 41, the lower slide 4 moves upward, thereby blocking the products transported at the rear and stopping them at the upper end of the conveyor belt 46. After a group of products has been irradiated and sent out of the main unit cover 1, the clamping assembly... The component will move downwards, triggering the induction switch 45 inside the main unit cover 1. This energizes the electromagnet 42, causing it to attract the iron core rod 43, which in turn drives the lower slide 4 to descend. This allows the product on the upper end of the conveyor belt 46 to continue sliding and guided to the upper end of the lower slide 4. It is worth noting that the upper end of the conveyor belt 46 is equipped with a roller 47. After the product at the rear end is pressed against the lower slide 4, its bottom end will generate rolling friction with the roller 47, thus preventing excessive friction between the bottom end of the product and the conveyor belt 46 and causing serious wear. The roller 47 at the upper end of the lower slide 4 is used to assist the product to slide more smoothly on the upper end of the lower slide 4, making it easier for it to slide to the upper end of the support plate 25.

[0050] In one embodiment, the radiation control mechanism is further equipped with an unloading mechanism for transferring the packaged product after irradiation. The unloading mechanism includes a sliding assembly on the main unit cover 1 for guiding the packaged product to slide to the external conveying structure, an abutment plate 51 on the travel frame 21 for controlling the movement of the sliding assembly, and a reset assembly on the main unit cover 1 for keeping the sliding assembly reset after movement. The sliding assembly includes an upper slide 52 that moves between the inlets 13 and a pressure-receiving side plate 53 that is mounted on the upper slide 52 and located between the limiting slots 5 on the main unit cover 1 for limiting sliding. The end of the pressure-receiving side plate 53 near the inside of the main unit cover 1 is triangular. The reset assembly includes a fixing frame 54 on the main unit cover 1 and a retaining plate 51 on the retaining frame 21 for limiting sliding between the limiting slots 5 on the main unit cover 1. On the pressure side plate 53, a limiting sleeve 55 is slidably connected to the fixed frame 54 at one end, and a third spring 56 is sleeved with the limiting sleeve 55, with one end set on the pressure side plate 53 and the other end set on the fixed frame 54. When the clamping assembly clamps and transports the packaged product to the upper part inside the main unit cover 1, it represents that the product has completed one stroke of irradiation. At this time, it indicates that the irradiation dose has reached the requirement, so the product needs to be sent to the next set of transmission structures for the next process. Therefore, after irradiation, the clamping assembly needs to be released. During the release process, the product is caught by the upper slide 52 and then slidably guided to transport it to other transport equipment. Since it is necessary to ensure that the upper slide 52 can use the product Therefore, it needs to be located at the lower end of the clamping assembly. This would cause the upper slide 52 and the clamping assembly to overlap in the longitudinal direction, which would affect the upward transport of the clamping assembly. To address this, a pressure-bearing side plate 53 is provided, and a stop plate 51 is provided at the corresponding position on the travel frame 21. During the upward movement of the clamping assembly, the stop plate 51 will abut against the pressure-bearing side plate 53. Since the front end of the pressure-bearing side plate 53 is designed as a triangular structure, during the upward movement of the stop plate 51, it will abut against the pressure-bearing side plate 53 and slide backward. This pressure-bearing side plate 53 will then drive the upper slide 52 to slide backward, thus avoiding the movement path of the clamping assembly. During this process, through a third... The spring 56 ensures that the pressure-bearing side plate 53 remains in contact with the abutment plate 51. As the clamping assembly passes the position of the upper slide 52, the abutment plate 51 abuts against the apex of the triangular end of the pressure-bearing side plate 53. During the upward sliding process, the pressure-bearing side plate 53 returns to its original position under the action of the third spring 56, thereby driving the upper slide 52 to move into the interior of the main unit cover 1, gradually moving it to the lower position of the clamping assembly. When the clamping assembly completes the irradiation stroke, the upper slide 52 will be completely located at the lower position of the clamping assembly. Then, the clamping assembly releases the product, allowing the upper slide 52 to fully catch the product and stably guide it to the next set of transmission structures for transport.

[0051] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

Claims

1. An irradiation sterilization conveying device for use in a food packaging production line, comprising a main unit cover (1), wherein an irradiation device (11) and a drive control box (12) are provided on the upper end of the main unit cover (1), and an inlet (13) for feeding packaged products is also provided on the main unit cover (1), characterized in that: include: The radiation control mechanism is located inside the main unit cover (1) and is used to adjust the radiation dose according to the specifications of the packaged product; The radiation control mechanism includes a detection component for detecting the specifications of the packaged product, a clamping component located at the lower end of the irradiation device (11) for clamping the packaged product, and a drive component for controlling the up and down movement of the clamping component. The clamping assembly includes a base plate (22) disposed on the stroke frame (21) and having an installation groove (221), a bidirectional threaded screw (23) with bearings at both ends connected in the installation groove (221), and two sets of clamping arms (24) that move relative to each other on the bidirectional threaded screw (23). The drive assembly includes two sets of first threaded screws (2) disposed inside the main unit cover (1) and connected to the drive control chassis (12) and a travel frame (21) that moves up and down on the two sets of first threaded screws (2). The detection assembly includes a pressure-sensitive component disposed inside the main unit cover (1) and located at the lower end of the clamping assembly for detecting the quality of the packaged product, and an infrared scanner (28) disposed on the inner wall of the main unit cover (1) for detecting the volume of the packaged product; the pressure-sensitive component includes a support plate (25) that is limited to sliding within a limiting groove (14) disposed on both sides of the inner wall of the main unit cover (1), a pressure-sensitive detection plate (27) disposed inside the main unit cover (1) and located at the lower end of the support plate (25), and a first spring (26) with one end disposed on the support plate (25) and the other end disposed on the pressure-sensitive detection plate (27). The main unit cover (1) is also provided with a rotating mechanism that works in conjunction with the radiation control mechanism to apply uniform irradiation to the packaged product. The rotating mechanism includes a gear (31) fixedly connected to a connecting shaft (3) on the base plate (22) and a rack (33) on one side of the rear slot (32) opened on the main unit cover (1). The gear (31) and the rack (33) mesh with each other. The base plate (22) and the stroke frame (21) are connected by bearings. The main unit cover (1) is also provided with a back cover plate (34). The back cover plate (34) is slidably connected to a limiting slider (36) that is connected to the bearing between the connecting shaft (3) through a limiting groove (35). On the side of the limiting slider (36) away from the base plate (22), a limiting plate (37) is also provided that is fixedly connected to the first threaded screw (2). The radiation control mechanism is also equipped with a delivery mechanism for quantitatively conveying packaged products; the delivery mechanism includes a sliding control component for quantitatively controlling the delivery of packaged products to the support plate (25) and a transmission component for conveying packaged products; The sliding control assembly includes a lower slide (4) that is limited in movement by a limiting slide rod (44) set on the main unit cover (1) and is located between the main unit cover (1) and the transmission assembly, and a valve control assembly that controls the up and down movement of the lower slide (4). The valve control assembly includes a second spring (41) with one end set on the main unit cover (1) and the other end set on the lower slide (4) and an electromagnetic component that drives the lower slide (4) to move. The electromagnetic components include an electromagnet (42) and an iron core rod (43) that are adjusted inside the second spring (41) and respectively disposed on the main unit cover (1) and the lower slide (4), as well as two sets of inductive switches (45) disposed inside the lower slide (4) and the main unit cover (1) to control the on and off state of the electromagnet (42).

2. The irradiation sterilization conveying device for a food packaging production line according to claim 1, characterized in that: The lower slide (4) has holes on its inclined surface and the conveyor belt (46) of the transmission assembly are equipped with freely rotatable rollers (47).

3. The irradiation sterilization conveying device for a food packaging production line according to claim 1, characterized in that: The radiation control mechanism is also equipped with an unloading mechanism for transferring the packaged products after irradiation. The unloading mechanism includes a sliding component mounted on the main unit cover (1) for guiding the packaged product to slide to the external conveying structure, an abutment plate (51) mounted on the travel frame (21) for controlling the movement of the sliding component, and a reset component mounted on the main unit cover (1) for keeping the sliding component reset after movement.

4. The irradiation sterilization conveying device for a food packaging production line according to claim 3, characterized in that: The material sliding assembly includes an upper slide (52) that moves between the inlets (13) and a pressure-bearing side plate (53) that is limited and slides between the limiting slots (5) opened on the upper slide (52) and the main body cover (1). The end of the pressure-bearing side plate (53) near the inside of the main body cover (1) is triangular. The reset assembly includes a fixed frame (54) mounted on the main unit cover (1), a limiting sleeve (55) with one end mounted on the pressure side plate (53) and the other end slidably connected to the fixed frame (54), and a third spring (56) sleeved with the limiting sleeve (55) with one end mounted on the pressure side plate (53) and the other end mounted on the fixed frame (54).