CN117284585A - Irradiation sterilization conveying device applied to food packaging production line - Google Patents

Abstract

The invention discloses an irradiation sterilization conveying device applied to a food packaging production line, which relates to the technical field of irradiation sterilization and has the technical scheme that the irradiation sterilization conveying device comprises a main machine cover, wherein the upper end of the main machine cover is provided with an irradiation device and a drive control machine box, the main machine cover is also provided with an inlet for feeding packaged products, and the irradiation sterilization conveying device also comprises an irradiation control mechanism which is arranged inside the main machine cover and is used for adjusting radiation dose according to the specification of the packaged products; the radiation control mechanism comprises a detection component for detecting the specification of the packaged product, a clamping component arranged at the right lower end of the irradiation device and used for clamping the packaged product, and a driving component used for controlling the clamping component to move up and down. According to the technical scheme, the corresponding irradiation dose can be automatically adjusted according to the specification and the size of the food packaging box through cooperation between the structures, so that the assembly line can operate more efficiently, and the efficiency loss caused by manual debugging in the middle is reduced.

Description

A irradiation sterilization conveying device used in food packaging production lines

Technical field

The invention relates to the technical field of radiation sterilization, and in particular to a radiation sterilization conveying device used in a food packaging production line.

Background technique

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

Since radiation sterilization is a factory processing equipment that assists the batch sterilization production of products, and the particularity of this equipment also requires specific manufacturing and construction, in the radiation sterilization production line for food, Since the size and volume of packaging boxes in different food batch packaging production are different, the irradiation doses required for the food inside are also different. Excessive irradiation dose will cause the loss of nutrients in the food and affect the food. However, too small a dose will lead to incomplete food sterilization. Due to the low degree of cooperation between current radiation transmission equipment, it is difficult to automatically control the radiation sterilization dose for different batches of food packaging boxes. As a result, after food packaging boxes of one specification are sterilized for transportation in batch production lines, the equipment still needs to be manually debugged to meet the sterilization needs of food packaging boxes of other specifications. This kind of inability to self-regulate the irradiation dose Moreover, the transmission structure with low coordination between the equipment results in poor improvement in the working efficiency of the production line and increases the production cost of the factory.

Therefore, based on this, a design or technical improvement is now proposed to solve the above problems.

The above content is only used to assist in understanding the technical solution of the present invention, and does not represent an admission that the above content is the closest prior art.

Contents of the invention

The purpose of the present invention is to solve the above-mentioned shortcomings and provide a radiation sterilization conveying device used in a food packaging production line.

In order to solve the above technical problems, the present invention adopts the following technical solutions:

An irradiation sterilization conveying device used in a food packaging production line, including a host cover. An irradiation device and a drive control chassis are provided on the upper end of the host cover. An inlet for feeding packaged products is also provided on the host cover. ,Also includes

The radiation control mechanism is set inside the main machine cover 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 provided at the lower end of the irradiation device for clamping the packaged product, and a driving component for controlling the up and down movement of the clamping component.

Further, the driving assembly includes two sets of first threaded screw rods arranged inside the main engine cover and connected to the drive and control chassis, and a travel frame that moves up and down on the two sets of first threaded screw rods;

The clamping assembly includes a base plate arranged on the travel frame and with a mounting slot, a bidirectional threaded screw rod with bearings at both ends connected in the mounting slot, and two sets of clamping arms that are relatively movable on the bidirectional threaded screw rod;

The detection component includes a pressure-sensitive component located inside the host cover and located at the lower end of the clamping component for detecting the quality of the packaged product, and an infrared scanner located on the inner wall of the host cover for detecting the volume of the packaged product.

Further, the pressure-sensitive component includes a supporting plate that limits sliding in the limiting chute provided on both sides of the inner wall of the main machine cover, a pressure-sensitive detection plate provided inside the main machine cover and located at the lower end of the supporting plate, and a On the supporting plate, the other end is arranged on the first spring on the pressure sensing plate.

Furthermore, the main machine cover is also provided with a rotating mechanism that cooperates with the radiation control mechanism to apply uniform radiation to the packaged products.

Further, the rotating mechanism includes a gear fixedly connected to the connecting shaft provided on the base plate and a rack provided on one side of the rear slot opened on the main machine cover. The gear and the rack are meshed, so The base plate and the travel frame are connected by bearings.

Furthermore, the main engine cover is also provided with a back cover plate, and the back cover plate is slidably connected to a limit slide block that is bearing-connected with the connecting shaft through a limit channel. The limit slide block The side of the block away from the base plate is also provided with a limiting plate fixedly connected to the first threaded screw rod.

Further, the radiation control mechanism is also provided with a delivery mechanism for quantitatively transporting packaged products;

The delivery mechanism includes a sliding control component for quantitatively controlling the delivery of packaged products to a supporting plate and a transmission component for transporting packaged products;

The sliding control assembly includes a lower sliding platform that is limited up and down by a limiting slide rod provided on the main engine cover and is located between the main engine cover and the transmission assembly, and a valve control assembly that controls the upper and lower movement of the lower sliding platform;

The valve control assembly includes a second spring with one end provided on the main engine cover and the other end provided on the lower slide table and an electromagnetic component that drives the lower slide table to move;

The electromagnetic component includes an electromagnet and an iron core rod that are adjusted inside the second spring and are respectively provided on the main machine cover and the lower sliding table, and are respectively provided inside the lower sliding table and the main machine cover for controlling the on and off of the electromagnet. Two sets of sensor switches for status.

Furthermore, freely rotatable rollers are provided at the holes on the inclined surface of the lower sliding table and on the conveyor belt.

Further, the radiation control mechanism is also equipped with an unloading mechanism for transferring the packaged products after irradiation;

The unloading mechanism includes a sliding material assembly provided on the main machine cover for guiding the packaged products to slide to the external conveying structure, an abutment plate provided on the travel frame for controlling the movement of the sliding material assembly, and an abutment plate provided on the main machine cover for holding The reset component is used to reset the sliding material component after movement.

Further, the sliding material assembly includes a movable upper sliding platform located between the inlets and a pressure-receiving side plate disposed on the upper sliding platform and located between the limiting slots opened on the main machine cover to limit sliding. One end of the pressure side plate close to the inside of the main engine cover is triangular;

The reset assembly includes a fixed frame arranged on the main engine cover, one end provided on the pressure side plate, a limit sleeve rod slidably connected to the fixed frame at the other end, and a limit sleeve rod sleeved with one end of the limit sleeve rod. The third spring is arranged on the pressure side plate and the other end is arranged on the fixed frame.

Compared with the existing technology, the beneficial effects of this solution are: through the cooperation between structures, the solution can automatically adjust the corresponding irradiation dose according to the specifications of the food packaging boxes, making the streamlined operation of the production line more efficient and reducing This eliminates the efficiency loss caused by manual debugging.

The solution makes the production line more automated through a high degree of cooperation between each group of structures. At the same time, through the cooperation between different transmission structures and radiation dose adjustment structures, it also ensures the radiation dose adjustment for food packaging of different specifications. At the same time, the transmission continuity of the assembly line can always be maintained, further enhancing the stability of production line operations.

Description of drawings

The description and drawings that constitute a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the attached picture:

Figure 1 is a front perspective view of the present invention;

Figure 2 is a schematic side view of the present invention;

Figure 3 is a schematic diagram of the internal structure of the main engine cover in Figure 1 of the present invention;

Figure 4 is a rear perspective view of the present invention;

Figure 5 is a schematic perspective view of the lower sliding table in Figure 1 of the present invention;

Figure 6 is a three-dimensional schematic view of the main unit cover in Figure 1 of the present invention;

Figure 7 is a schematic side cross-sectional perspective view of the main engine cover in Figure 1 of the present invention;

Figure 8 is a disassembled perspective view of the unloading mechanism of the present invention;

Figure 9 is a three-dimensional schematic view of the radiation control mechanism in the present invention;

Figure 10 is a three-dimensional schematic view of the rotating mechanism in the present invention;

Figure 11 is a schematic front cross-sectional perspective view of the main engine cover in Figure 1 of the present invention;

Figure 12 is a schematic side cross-sectional perspective view of the present invention.

In the picture: 1. Main machine cover; 11. Irradiation device; 12. Drive control chassis; 13. Entrance; 14. Limit chute; 2. First thread screw; 21. Stroke frame; 22. Base plate ; 221. Installation slot; 23. Bidirectional thread screw; 24. Clamping arm; 25. Supporting plate; 26. First spring; 27. Pressure sensing plate; 28. Infrared scanner; 3. Connecting shaft; 31 , gear; 32. rear slot; 33. rack; 34. back cover plate; 35. limit channel; 36. limit slider; 37. limit plate; 4. lower slide; 41. No. Two springs; 42. Electromagnet; 43. Iron core rod; 44. Limit slide rod; 45. Induction switch; 46. Conveyor belt; 47. Roller; 5. Limit slot; 51. Restraining plate; 52. Upper Set the sliding table; 53. Pressure side plate; 54. Fixing frame; 55. Limit sleeve rod; 56. Third spring.

Detailed ways

The technical solutions in the embodiments 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 some of the embodiments of the present invention, rather than all the embodiments. The embodiments and features in the embodiments in this application may be combined with each other without conflict. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present invention.

As shown in Figure 1-12, a irradiation sterilization conveying device used in a food packaging production line includes a host cover 1. An irradiation device 11 and a drive control chassis 12 are provided on the upper end of the host cover 1. The host cover 1 is also provided with There is an inlet 13 for feeding packaged products, and a radiation control mechanism is provided inside the host cover 1 for adjusting 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 is provided at the lower end of the irradiation device 11 for clamping packaging products, and a driving component for controlling the up and down movement of the clamping component. Since the irradiation sterilization production line is a special production line, the distance between the equipment The degree of cooperation is still at a low level. When it is used in food packaging sterilization production operations, because the food packaging will change the size due to different trade needs and thus change the single food packaging volume, the food sterilization inside it will be difficult. The required irradiation dose will also be different. When a single batch of products is sterilized, the staff still needs to measure the size of the next batch of food packaging and the weight of the food inside, so as to manually debug the irradiation production line. , so that the entire production line can cooperate to meet the needs of radiation dose changes, which greatly increases the work intensity and reduces the work efficiency. Therefore, the radiation control mechanism set up in the device can be used to implement automated radiation dose adjustment. The specific work process is that when the packaged product is transported to the radiation control mechanism, it is clamped by the clamping component at the upper end, and then the volume and quality of the product packaging are detected according to the detection component set on the radiation control structure, and then the detection is carried out. The data is transmitted to the central console of the production line, and the console is used to calculate the optimal irradiation dose required, and then the driving component is used to drive the clamping component to clamp the product packaging for upward movement and transportation. By controlling the movement of the clamping component The activity speed can then change the time the packaged product is exposed to the radiation of the drive control chassis 12, and through the cooperation between these components, the effect of automatically adjusting the radiation dose according to the specifications of the product packaging can be achieved.

In one embodiment, the driving assembly includes two sets of first threaded screw rods 2 arranged inside the main machine 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 screw rods 2; clamps The holding assembly includes a base plate 22 arranged on the travel frame 21 and having a mounting slot 221, a bidirectional threaded screw rod 23 with bearings at both ends connected in the mounting slot 221, and two sets of clamps that are relatively movable on the bidirectional threaded screw rod 23. Holding arm 24; the holding arm 24 and the mounting groove 221 are arranged in a sliding manner, so that the holding arm 24 can be limited during the rotation of the two-way threaded screw rod 23 and the movement of the holding arm 24, and the detection assembly It includes a pressure-sensitive component located inside the host cover 1 and located at the lower end of the clamping component for detecting the quality of the packaged product, and an infrared scanner 28 provided on the inner wall of the host cover 1 for detecting the volume of the packaged product, for specific detection of product packaging specifications. The process is that when it is transported to the upper end of the pressure-sensitive component, it will calculate the quality data of the product through the pressure detected by the pressure-sensitive component. At the same time, the infrared scanner 28 located inside the main cover 1 will measure the product. The package is scanned, and then the volume data is obtained, so that the required radiation dose is calculated according to the quality and volume of the product, and then converted into the time of exposure to the radiation generated by the drive control chassis 12, and the time is controlled. This is achieved by adjusting the rotation speed of the first threaded screw 2 to change the moving speed of the stroke frame 21 at its upper end, thereby achieving precise control.

In one embodiment, the pressure-sensing assembly includes a supporting plate 25 that limits sliding in the limiting chute 14 provided on both sides of the inner wall of the main machine cover 1 , and a pressure sensor located inside the main machine cover 1 and located at the lower end of the supporting plate 25 . The sensing plate 27 and the first spring 26 with one end disposed on the supporting plate 25 and the other end disposed on the pressure sensing plate 27, when transported to the upper end of the supporting plate 25, it will press the supporting plate. 25 slides downward, 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 sensing plate 27, and then fed back to the central console, and then the console will be used to control the internal pressure through the pressure. The quality is tested. The purpose of setting the first spring 26 is that it needs to adapt to products of different specifications and sizes. When the product mass is too large, its shrinkage will be greater, so that the product is always located in the middle of the clamping arm 24 , to facilitate the clamping arm 24 to clamp the product. At the same time, after the product leaves the surface of the supporting plate 25, the supporting plate 25 will be reset under the action of the first spring 26 to facilitate supporting the next set of products.

In one embodiment, the main machine cover 1 is also provided with a rotating mechanism that cooperates with the radiation control mechanism to apply uniform irradiation to the packaged products. The rotating mechanism includes a connecting shaft 3 fixed to the base plate 22 The connected gear 31 and the rack 33 provided on one side of the rear slot 32 opened on the main engine cover 1 are meshed with each other, and the base plate 22 and the travel frame 21 are bearing-connected, and the main engine cover 1 The back cover plate 34 is also provided with a back cover plate 34. The back cover plate 34 is slidably connected to a limit slide block 36 that is bearing-connected with the connecting shaft 3 through the provided limit channel 35. The limit slide block 36 is away from the base plate. One side of 22 is also provided with a limiting plate 37 fixedly connected to the first threaded screw rod 2. When the clamping arm 24 clamps the packaged product for upward movable transportation, the gear 31 provided at its rear end will pass through The gear 31 engages with the rack 33 to drive the base plate 22 to rotate. Since the limit slider 36 moves up and down inside the limit channel 35, the engagement between the gear 31 and the rack 33 is stable. , furthermore, when the base plate 22 moves upward for a fixed distance, its number of rotations remains fixed, so that the product can adjust the upward movement speed according to the specifications to change the irradiation dose without affecting its all-round uniformity. The irradiation effect improves the comprehensiveness of sterilization.

In one embodiment, the radiation control mechanism is also provided with a delivery mechanism for quantitatively transporting packaged products; the delivery mechanism includes a sliding control component for quantitatively controlling the delivery of packaged products to the supporting plate 25 and a transmission mechanism for delivering packaged products. Assembly; the sliding control assembly includes a lower sliding table 4 that is limited up and down by the limiting slide rod 44 provided on the main machine cover 1 and is located between the main machine cover 1 and the transmission assembly, and a device that controls the up and down movement of the lower sliding table 4. Valve control assembly; the valve control assembly includes a second spring 41 with one end disposed on the main machine cover 1 and the other end disposed on the lower slide 4 and an electromagnetic component that drives the lower slide 4 to move; the electromagnetic component includes a second spring that is adjusted to The electromagnet 42 and the iron core rod 43 inside 41 and respectively provided on the main machine cover 1 and the lower sliding table 4 are used to control the on-off state of the electromagnet 42. There are two sets of induction switches 45. The holes on the slope of the lower sliding table 4 and the conveyor belt 46 are provided with freely rotatable rollers 47. Since the radiation control mechanism clamps the product through the clamping assembly to realize irradiation transportation, Therefore, one product can be clamped and irradiated for sterilization at a time, and a specially designed delivery mechanism is required to cooperate to complete a highly automated assembly line operation. Specifically, the product is transported through the conveyor belt 46. And use the lower sliding table 4 to slide and guide the product to the upper end of the supporting plate 25 for inspection. The initial state of the lower sliding table 4 is that the inside of the electromagnet 42 has been energized, and then it will attract the iron core rod 43, thereby causing the second The spring 41 contracts, and the lower sliding table 4 moves downward to the highest point position and is kept in the same plane as the conveyor belt 46, so that the product can be sent to the upper end of the lower sliding table 4 under the transportation effect of the conveyor belt 46. When a After the assembled product is transported to the upper end of the lower slide table 4, it will press on the surface of the lower slide table 4, causing the sensor switch 45 to detect the object, thereby controlling the current inside the electromagnet 42 to disconnect, and then the electromagnet 42 and the iron The attraction between the core rods 43 loses, and then under the action of the rebound force of the second spring 41, the lower slide 4 moves upward, thereby blocking the product transported at the rear end and making it stay at the upper end of the conveyor belt 46. After the assembled product is irradiated and sent out of the main machine cover 1, the clamping assembly will move down. At this time, it will touch the induction switch 45 inside the main machine cover 1 to generate an induction, which will energize the inside of the electromagnet 42, and then connect with the iron core rod 43. The upper end of the conveyor belt 46 is attracted to the lower slide table 4, thereby driving the lower slide table 4 to descend, so that the products at the upper end of the conveyor belt 46 continue to be sent to the upper end of the lower slide table 4 for sliding guidance. It is worth noting that the upper end of the conveyor belt 46 is provided with a roller 47, and then the After the product at the end is pressed by the lower slide 4, rolling friction will occur between the bottom end of the product and the roller 47, thereby preventing excessive friction between the bottom end of the product and the conveyor belt 46 and causing serious wear, while the lower slide The roller 47 at the upper end of the platform 4 is used to assist the product to slide more smoothly on the upper end of the lower sliding platform 4, thereby making it easier for the product to slide to the upper end of the supporting plate 25 better.

In one embodiment, the radiation control mechanism is also equipped with an unloading mechanism for transferring the packaged products after irradiation; the unloading mechanism includes a sliding assembly provided on the main machine cover 1 for guiding the packaged products to slide to the external conveying structure, The abutment plate 51 is provided on the stroke frame 21 for controlling the movement of the sliding material assembly, and the reset assembly is provided on the main machine cover 1 for maintaining the movement of the sliding material assembly. The sliding table 52 and the pressure-receiving side plate 53 are arranged on the upper sliding table 52 and are located between the limiting slots 5 opened on the main machine cover 1 to limit sliding. The pressure-receiving side plate 53 is close to one end inside the main machine cover 1 It is triangular in shape, and the reset assembly includes a fixing bracket 54 arranged on the main machine cover 1, a limiting sleeve rod 55 with one end arranged on the pressure-bearing side plate 53, and a sliding connection between the other end and the fixing bracket 54, and the limiting sleeve rod 55. 55 is sleeved between the third spring 56 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 the packaged product and transports it to the inner upper end part of the main machine cover 1, It represents that the product has completed one stroke of irradiation. At this time, it means 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 step of processing. Therefore, after the irradiation is completed, the clamping assembly needs to be loosened. During the loosening process, the product is caught by the upper slide 52, and then slid and guided to be transported to other transportation equipment. Since it is necessary to ensure that the upper slide 52 can use the product, it needs to be located in the clamp. The lower end position of the clamping assembly will cause the upper sliding table 52 and the clamping assembly to overlap in the longitudinal position, which will affect the upward transportation of the clamping assembly. At this time, the pressure side plate 53 is provided , and an abutment plate 51 is provided at the corresponding position of the stroke frame 21, and during the upward movement of the clamping assembly, the abutment plate 51 will abut against the pressure-receiving side plate 53. Since the front end of the pressure-receiving side plate 53 The part is set into a triangular structure, and when the resisting plate 51 moves upward, it will resist the pressure side plate 53 and slide backward, and then the pressure side plate 53 will drive the upper sliding platform 52 to slide backward. Therefore, it avoids the movement route of the clamping assembly. During this process, through the setting of the third spring 56, the pressure side plate 53 will always remain in contact with the resisting plate 51, so that when the clamping assembly is transported, After the sliding table 52 is raised, the abutment plate 51 will abut the vertex position of the triangular end of the pressure side plate 53. Then during the upward sliding process, the pressure side plate 53 will move in the third position. The action of the spring 56 returns downward, thus driving the upper sliding table 52 to move toward the inside of the main machine cover 1, so that it gradually moves to the lower end position of the clamping assembly. When the clamping assembly completes the irradiation stroke, the upper sliding table 52 52 will be completely located at the lower end of the clamping component, and then the clamping component releases the product, allowing the upper slide 52 to completely catch the product, allowing it to be stably guided to the next set of transmission structures for transportation.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be regarded as illustrative and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is therefore intended that all claims falling within the claims All changes within the meaning and scope of equivalent elements are included in the present invention.

Claims (10)

1. A irradiation sterilization conveying device used in a food packaging production line, including a main machine cover (1). An irradiation device (11) and a drive control chassis (12) are provided on the upper end of the main machine cover (1). The main machine cover (1) is also provided with an inlet (13) for feeding packaged products, which is characterized by: including: The radiation control mechanism is set inside the main machine 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 just below the irradiation device (11) for clamping the packaged product, and a driving component for controlling the up and down movement of the clamping component. 2. A radiation sterilization conveying device used in a food packaging production line according to claim 1, characterized in that: the drive assembly includes two groups arranged inside the main machine cover (1) and connected with the drive control chassis (12). ) is connected to the first threaded screw rod (2) and the travel frame (21) that moves up and down on the two sets of first threaded screw rods (2); The clamping assembly includes a base plate (22) arranged on the travel frame (21) and provided with a mounting slot (221), a bidirectional threaded screw rod (23) with bearings at both ends connected in the mounting slot (221), and Two sets of clamping arms (24) that are relatively movable on the bidirectional threaded screw (23); The detection component includes a pressure-sensing component located inside the host cover (1) and located at the lower end of the clamping component for detecting the quality of packaged products, and an infrared scanner ( 28). 3. A radiation sterilization conveying device used in a food packaging production line according to claim 2, characterized in that: the pressure-sensing component includes limiting chutes provided on both sides of the inner wall of the main machine cover (1) (14) The internal sliding support plate (25), the pressure-sensitive detection plate (27) located inside the main machine cover (1) and at the lower end of the support plate (25), and one end of the support plate (25) on the pressure sensing plate (27), and the other end is provided on the first spring (26) on the pressure sensing plate (27). 4. A radiation sterilization conveying device used in a food packaging production line according to any one of claims 1-3, characterized in that: the host cover (1) is also provided with a radiation control mechanism. The rotating mechanism is used to apply uniform irradiation to the packaged products. 5. A radiation sterilization conveying device used in food packaging production lines according to claim 4, characterized in that: the rotating mechanism includes a connecting shaft (3) fixed on the base plate (22) The connected gear (31) and the rack (33) provided on one side of the rear slot (32) opened on the main machine cover (1), the gear (31) meshes with the rack (33), and the The base plate (22) and the stroke frame (21) are connected by bearings. 6. A radiation sterilization conveying device used in a food packaging production line according to claim 4, characterized in that: the main machine cover (1) is also provided with a back cover plate (34), and the back cover The plate (34) is slidably connected to a limit slider (36) connected to the connecting shaft (3) through a limiter channel (35). The limiter slider (36) is away from the base. One side of the disk (22) is also provided with a limiting plate (37) fixedly connected to the first threaded screw rod (2). 7. A radiation sterilization conveying device used in food packaging production lines according to claim 4, characterized in that: the radiation control mechanism is also provided with a delivery mechanism for quantitatively conveying packaging products; The delivery mechanism includes a sliding control component for quantitatively controlling the delivery of packaged products to the supporting plate (25) and a transmission component for transporting packaged products; The sliding control assembly includes a lower sliding table (4) that is limited up and down by a limiting slide rod (44) provided on the main machine cover (1) and is located between the main machine cover (1) and the transmission assembly, and a control unit. The lower sliding table (4) is a valve control assembly that moves up and down; The valve control assembly includes a second spring (41) with one end provided on the main machine cover (1) and the other end provided on the lower slide table (4) and an electromagnetic component that drives the lower slide table (4) to move; The electromagnetic component includes an electromagnet (42) and an iron core rod (43) that are adjusted inside the second spring (41) and are respectively provided on the main machine cover (1) and the lower sliding table (4). There are two sets of induction switches (45) inside the lower sliding table (4) and the main machine cover (1) for controlling the on-off state of the electromagnet (42). 8. A radiation sterilization conveying device used in food packaging production lines according to claim 7, characterized in that: the holes on the inclined surface of the lower sliding table (4) and the conveyor belt (46) are both provided with There are freely rotating rollers (47). 9. A radiation sterilization conveying device used in a food packaging production line according to claim 4, characterized in that: the radiation control mechanism is also provided with an unloading mechanism for transferring irradiated packaged products; The unloading mechanism includes a sliding component provided on the main machine cover (1) for guiding the packaged products to slide to the external conveying structure, and a resisting plate (51) provided on the travel frame (21) for controlling the movement of the sliding component. And a reset component provided on the main machine cover (1) for keeping the sliding material component in reset after being moved. 10. A radiation sterilization conveying device used in food packaging production lines according to claim 9, characterized in that: the sliding material assembly includes a movable upper sliding table (52) located between the inlets (13) ) and a pressure-receiving side plate (53) provided on the upper sliding table (52) and located between the limiting slots (5) opened on the main machine cover (1) to limit sliding, the pressure-receiving side plate (53) 53) The end close to the inside of the main unit cover (1) is triangular; The reset assembly includes a fixing frame (54) arranged on the main machine cover (1), one end is arranged on the pressure side plate (53), and the other end is slidably connected to the fixing frame (54). (55) and a third spring (56) that is sleeved with the limiting sleeve rod (55) and has one end provided on the pressure side plate (53) and the other end provided on the fixed frame (54).