A delivery device for irradiation sterilization

Abstract

This utility model relates to the field of conveying device technology and discloses a conveying device for irradiation sterilization. The utility model includes two sets of frames, each with an irradiation chamber on its outer surface. A drive motor is mounted on one side of the outer surface of each frame, and a flipping device is mounted on the outer surface of one of the frames. The flipping device includes a frame plate, and a first servo motor is mounted on one side of the frame plate. A shaft is mounted on the output end of the first servo motor via a coupling, and a rotating plate is fixedly connected to one end of the shaft. By setting up the flipping device, after the item enters the frame, the second and first servo motors are operated respectively to control the frame to move, clamp, and rotate the rotating plate, thus flipping the item. In a single irradiation sterilization process, both the top and bottom ends of the item can be irradiated and sterilized, avoiding the problem of uneven radiation distribution affecting the sterilization effect due to irradiation of only one surface at a time.

Description

Technical Field

[0001] This utility model relates to the field of conveying device technology, and in particular to a conveying device for irradiation sterilization. Background Technology

[0002] Irradiation sterilization equipment is a device that uses ionizing radiation to kill most microorganisms on materials. It uses gamma rays generated by the radioactive isotope cobalt-60 to penetrate and irradiate the goods in the cargo container, acting on the microorganisms and directly or indirectly destroying their ribonucleic acid, proteins, and enzymes, thereby killing the microorganisms and achieving the effect of disinfection and sterilization. When using irradiation sterilization equipment, the goods need to be transported to the sterilization chamber by a conveyor device for sterilization.

[0003] Irradiation sterilization conveyor systems typically consist of several roller conveyor systems. Items move along the roller conveyor system into the irradiation sterilization area for sterilization. However, when items move on the conveyor rollers, only one side faces upwards. The radiation source irradiates the items from a single direction. The difference in radiation penetration depth between the light-facing and shadow-facing sides, as well as between the surface and the interior, can lead to uneven dose distribution. Items may need to be irradiated repeatedly to meet sterilization standards, increasing energy consumption and time costs. Utility Model Content

[0004] The purpose of this invention is to provide a delivery device for irradiation sterilization, aiming to solve the problems in the prior art.

[0005] This invention is implemented as follows: a conveying device for irradiation sterilization includes two sets of frames, each set of frames having an irradiation chamber on its outer surface. A drive motor is installed on one side of the outer surface of each frame, and several rotating rollers are rotatably connected to the outer surface of each frame. One end of each rotating roller is connected via a transmission belt, and the output end of the drive motor is connected to one end of a rotating roller via a coupling. A flipping device is provided on the outer surface of one of the frames to flip over items moving on the rotating rollers.

[0006] Furthermore, the flipping device includes a frame plate, which is installed on one side of a frame. A first servo motor is provided on one side of the frame plate. The output end of the first servo motor is connected to a shaft via a coupling. One end of the shaft rotates on the inner wall of the frame plate, and a rotating plate is fixedly connected to one end of the shaft. A second servo motor is provided on one end of the rotating plate. A lead screw is installed on the output end of the second servo motor via a coupling. The upper and lower ends of the lead screw rotate on the inner wall of the rotating plate. The two ends of the lead screw are provided with threads in opposite directions. A frame rod is threaded to each end of the lead screw. One end of the frame rod slides on the inner wall of the rotating plate. Several rectangular slots are opened on the outer surface of the frame. A vision sensor is provided on the surface of the irradiation chamber located on the outer surface of the frame on which the flipping device is installed.

[0007] Furthermore, two positioning blocks are fixedly connected to one end of the frame rod near the rotating plate, and one side of each positioning block slides on both sides of the rotating plate.

[0008] Furthermore, a positioning component is provided on one side of the rotating plate to further position the rotating plate and the frame plate.

[0009] Furthermore, the positioning component includes several round rods, one end of which is fixedly connected to the side of the rotating plate away from the frame rod. A plug is slidably connected to the outer surface of the round rod. A spring is provided at one end of the plug. The two ends of the spring are fixedly connected to one side of the rotating plate and one end of the plug, respectively. The two sides of the plug away from the spring are inclined surfaces. Several round grooves are opened on the side of the frame plate near the rotating plate. When the rotating plate and the frame plate are parallel to each other, the plug ends on the outer surface of each round rod on one side of the rotating plate will be inside the respective round grooves.

[0010] Furthermore, an auxiliary ring is fixedly connected to one end of the inner wall of the circular groove, and the inner edge of the auxiliary ring is arc-shaped.

[0011] Furthermore, inclined grooves are respectively provided on both sides of the frame plate.

[0012] The beneficial effects of the conveying device for irradiation sterilization disclosed in this utility model are as follows: by setting up a flipping device, by installing a rack plate and a rotating plate on one side of the frame, and by installing a vision sensor on the outside of the irradiation chamber, the position of the item on the outer surface of the frame is detected by the vision sensor. After the item enters the frame rod, the frame rod is moved to clamp the item and the rotating plate is rotated to flip the item by operating the second servo motor and the first servo motor respectively, thus flipping the item over. In a single irradiation sterilization process, the top and bottom ends of the item can be irradiated and sterilized, avoiding the problem that uneven radiation distribution into the interior of the item due to a single irradiation of one side of the item affects the sterilization effect. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a three-dimensional structural diagram of the frame of this utility model;

[0015] Figure 3 This is a three-dimensional structural diagram of the frame plate of this utility model;

[0016] Figure 4 This is a three-dimensional structural diagram of the rotating plate of this utility model;

[0017] Figure 5 This is a three-dimensional structural diagram of the frame rod of this utility model.

[0018] Markings: 1. Frame; 2. Tilting device; 21. Rectangular groove; 22. Frame plate; 23. First servo motor; 24. Shaft; 25. Rotating plate; 26. Second servo motor; 27. Lead screw; 28. Frame rod; 29. ​​Positioning assembly; 291. Circular groove; 292. Circular rod; 293. Spring; 294. Insert rod; 295. Auxiliary ring; 296. Inclined groove; 210. Positioning block; 3. Drive motor; 4. Rotating roller; 5. Irradiation chamber. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model 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 of the present utility model and are not intended to limit the present utility model.

[0020] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0021] The implementation of this utility model will be described in detail below with reference to specific embodiments.

[0022] In this embodiment:

[0023] Reference Figure 1 The diagram shows a preferred embodiment of the present invention.

[0024] This embodiment provides a conveying device for irradiation sterilization, comprising two sets of frames 1, each with an irradiation chamber 5 on its outer surface. A drive motor 3 is mounted on one side of the outer surface of each frame 1. Several rotating rollers 4 are rotatably connected to the outer surface of each frame 1, with one end of each roller 4 connected via a transmission belt. The output end of the drive motor 3 is connected to one end of one roller 4 via a coupling. A flipping device 2 is provided on the outer surface of one frame 1 to flip over items moving on the rollers 4. When performing irradiation sterilization on items, the items are placed in the un-irradiated chamber... On the frame 1 equipped with the flipping device 2, the drive motor 3 on one side of the frame 1 drives a rotating roller 4 to rotate, and the roller 4 on the outer surface of the frame 1 is rotated by the transmission belt at one end of the roller 4. This causes the item to move towards the irradiation chamber 5 from the outer surface of the roller 4. After entering the irradiation chamber 5, the item is sterilized by the radiation emitted by the radiation generator inside the irradiation chamber 5. Then, the item enters the surface of the frame 1 equipped with the flipping device 2, is flipped over by the flipping device 2, and then enters the irradiation chamber 5 on the frame 1 for irradiation sterilization.

[0025] Reference Figure 1-4As shown in this embodiment: the flipping device 2 includes a frame plate 22, which is installed on one side of a frame 1. A first servo motor 23 is provided on one side of the frame plate 22. The output end of the first servo motor 23 is connected to a shaft 24 via a coupling. One end of the shaft 24 rotates on the inner wall of the frame plate 22. A rotating plate 25 is fixedly connected to one end of the shaft 24. A second servo motor 26 is provided on one end of the rotating plate 25. A lead screw 27 is installed on the output end of the second servo motor 26 via a coupling. The upper and lower ends of the lead screw 27 rotate on the inner wall of the rotating plate 25. The two ends of the lead screw 27 are provided with threads in opposite directions. A frame rod 28 is threaded to each end of the lead screw 27. One end of the frame rod 28 slides on the inner wall of the rotating plate 25. Several rectangular slots 21 are formed on the outer surface of the frame 1. A vision sensor is installed on the surface of the irradiation chamber 5, which is located on the outer surface of the frame 1 where the flipping device 2 is installed. When the frame rod 28 is fully inside the rectangular slot 21, it is located below the surface of the rotating roller 4. After the item enters the outer surface of the frame 1 where the flipping device 2 is installed, the vision sensor on the outer surface of the irradiation chamber 5 captures image information and determines that the item has entered above the frame rod 28 located below. The signal is then transmitted to the control system, which controls the second servo motor 26 to operate. The output of the second servo motor 26 drives the lead screw 27 to rotate, causing the two frame rods 28 to rotate between the lead screw 27 and the rotating plate 25. The outer surfaces of frame 5 move in the same direction, causing the two frame rods 28 to clamp the upper and lower ends of the item respectively. Then, the operation of the second servo motor 26 stops, and the first servo motor 23 is operated to control the shaft 24 and the rotating plate 25 to rotate. The rotating plate 25 drives the item between the two frame rods 28 to rotate 180 degrees and flip the item. Then, the second servo motor 26 is operated to control the lead screw 27 to rotate in the opposite direction, causing the two frame rods 28 to move away from each other on the outer surface of the lead screw 27. The lower frame rod 28 enters the rectangular groove 21 on the outer surface of the frame 1. At this time, the bottom surface of the item will contact the rotating roller 4. The rotation of the rotating roller 4 drives the item to move into the machine. Inside the irradiation chamber 5, the other end of the item is irradiated and sterilized. By setting up a flipping device 2, a rack plate 22 and a rotating plate 25 are installed on one side of the frame 1, and a vision sensor is installed on the outside of the irradiation chamber 5. The vision sensor detects the position of the item on the outer surface of the frame 1. After the item enters the frame rod 28, the frame rod 28 moves to clamp the item and the rotating plate 25 rotates and flips the item by operating the second servo motor 26 and the first servo motor 23 respectively. In a single irradiation sterilization process, both the top and bottom ends of the item can be irradiated and sterilized, avoiding the problem of uneven radiation distribution inside the item due to irradiation of only one side of the item, which affects the sterilization effect.

[0026] Reference Figure 2-5As shown in this embodiment: two positioning blocks 210 are fixedly connected to one end of the frame rod 28 near the rotating plate 25. One side of the two positioning blocks 210 slides on both sides of the rotating plate 25. When the second servo motor 26 controls the lead screw 27 to rotate and move the two frame rods 28, the two positioning blocks 210 at one end of the frame rod 28 will slide on the outer surface of the rotating plate 25. The positioning blocks 210 can further limit the angle between the frame rod 28 and the rotating plate 25, and avoid the angle of the frame rod 28 from deflecting as much as possible.

[0027] Reference Figure 2-5 As shown in this embodiment: a positioning component 29 is provided on one side of the rotating plate 25 to further position the rotating plate 25 and the frame plate 22. The positioning component 29 includes several round rods 292. One end of the round rod 292 is fixedly connected to the side of the rotating plate 25 away from the frame rod 28. An insert rod 294 is slidably connected to the outer surface of the round rod 292. A spring 293 is provided at one end of the insert rod 294. The two ends of the spring 293 are fixedly connected to one side of the rotating plate 25 and one end of the insert rod 294, respectively. The two sides of the end of the insert rod 294 away from the spring 293 are inclined. Several round grooves 291 are opened on the side of the frame plate 22 near the rotating plate 25. When the rotating plate 25 and the frame plate 22 are parallel to each other, the round rods on one side of the rotating plate 25... One end of the insertion rod 294 on the outer surface of 292 will be inside the various circular slots 291. When the first servo motor 23 operates and drives the shaft 24 and the rotating plate 25 to rotate, the inclined end of the insertion rod 294 will contact the inner wall of the circular slot 291 and generate a thrust on the surface of the insertion rod 294, causing the insertion rod 294 to slide on the outer surface of the circular rod 292 towards the rotating plate 25 and compress the spring 293. When the rotating plate 25 is parallel to the frame plate 22 again after rotating, the spring 293 compressed at one end of the insertion rod 294 will return to its original state and push the insertion rod 294 into the interior of the circular slot 291, limiting and positioning the angle between the rotating plate 25 and the frame plate 22, and avoiding any deviation in the angle between the rotating plate 25 and the frame plate 22 after rotating.

[0028] Reference Figure 2-5 As shown in this embodiment: an auxiliary ring 295 is fixedly connected to one end of the inner wall of the circular groove 291. The inner edge of the auxiliary ring 295 is arc-shaped. By setting the auxiliary ring 295, when the rotating plate 25 rotates and approaches parallel with the frame plate 22, one end of the insertion rod 294 will first enter the auxiliary ring 295 at one end of the circular groove 291. At this time, the compressed spring 293 returns to its original state and pushes the insertion rod 294 to move, making it easier for the insertion rod 294 to enter the interior of the circular groove 291 to correct the small angle deviation between the rotating plate 25 and the frame plate 22. Inclined grooves 296 are respectively opened on both sides of the frame plate 22. When the rotating plate 25 rotates and one end of the insertion rod 294 enters the outer surface of the frame plate 22, the contact between one end of the insertion rod 294 and the inclined groove 296 on the outer surface of the frame plate 22 makes it easier to push the insertion rod 294 to move outside the circular rod 292 and compress the spring 293, so that the insertion rod 294 will not abut against one side of the frame plate 22.

[0029] Working principle: When sterilizing items by irradiation, the items are placed on the rack 1 without the flipping device 2. The drive motor 3 on one side of the rack 1 drives a rotating roller 4 to rotate, and the roller 4 on the outer surface of the rack 1 is rotated by the transmission belt at one end of the roller 4. This causes the items to move towards the irradiation chamber 5 from the outer surface of the roller 4. After entering the irradiation chamber 5, the items are sterilized by the radiation emitted by the radiation generator inside the irradiation chamber 5. Then, the items enter the rack 1 surface equipped with the flipping device 2. After the items enter the outer surface of the rack 1 equipped with the flipping device 2, the visual sensor on the outer surface of the irradiation chamber 5 captures image information and determines that the items have entered the frame 28 located below. The signal is then transmitted to the control system, which controls the second servo motor 26 to operate. The output of the second servo motor 26 is then used to control the operation of the second servo motor 26. The screw 27 is rotated, causing the two frame rods 28 to move in the same direction on the outer surfaces of the screw 27 and the rotating plate 25, so that the two frame rods 28 are respectively clamped at the upper and lower ends of the item. Then the operation of the second servo motor 26 is stopped, and the first servo motor 23 is operated to control the shaft 24 and the rotating plate 25 to rotate, so that the rotating plate 25 drives the item between the two frame rods 28 to rotate 180 degrees and flip the item. Then the second servo motor 26 is operated to control the screw 27 to rotate in the opposite direction, so that the two frame rods 28 move away from each other on the outer surface of the screw 27, so that the lower frame rod 28 enters the rectangular groove 21 on the outer surface of the frame 1. At this time, the bottom surface of the item will contact the rotating roller 4. The rotation of the rotating roller 4 drives the item to move into the irradiation chamber 5, where the other end of the item is irradiated and sterilized.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A conveying device for irradiation sterilization, comprising two sets of frames (1), characterized in that: The outer surfaces of both sets of frames (1) are provided with irradiation chambers (5). A drive motor (3) is provided on one side of the outer surface of the frame (1). Several rotating rollers (4) are rotatably connected to the outer surface of the frame (1). One end of each rotating roller (4) is connected by a transmission belt. The output end of the drive motor (3) is connected to one end of a rotating roller (4) through a coupling. A flipping device (2) is provided on the outer surface of one of the frames (1) to flip the items moving on the rotating roller (4).

2. The conveying device for irradiation sterilization as described in claim 1, characterized in that: The flipping device (2) includes a frame plate (22), which is installed on one side of a frame (1). A first servo motor (23) is provided on one side of the frame plate (22). The output end of the first servo motor (23) is connected to a shaft (24) via a coupling. One end of the shaft (24) rotates on the inner wall of the frame plate (22). A rotating plate (25) is fixedly connected to one end of the shaft (24). A second servo motor (26) is provided at one end of the rotating plate (25). The output end of the machine is equipped with a lead screw (27) via a coupling. The upper and lower ends of the lead screw (27) rotate on the inner wall of the rotating plate (25). The two ends of the lead screw (27) are provided with threads in opposite directions. The two ends of the lead screw (27) are respectively threaded to a frame rod (28). One end of the frame rod (28) slides on the inner wall of the rotating plate (25). The outer surface of the frame (1) is provided with several rectangular grooves (21). A vision sensor is provided on the surface of the irradiation chamber (5) located on the outer surface of the frame (1) where the flipping device (2) is installed.

3. The conveying device for irradiation sterilization as described in claim 2, characterized in that: Two positioning blocks (210) are fixedly connected to one end of the frame rod (28) near the rotating plate (25), and one side of the two positioning blocks (210) slides on both sides of the rotating plate (25).

4. The conveying device for irradiation sterilization as described in claim 3, characterized in that: A positioning component (29) is provided on one side of the rotating plate (25) to further position the rotating plate (25) and the frame plate (22).

5. A conveying device for irradiation sterilization as described in claim 4, characterized in that: The positioning component (29) includes several round rods (292). One end of the round rod (292) is fixedly connected to the side of the rotating plate (25) away from the frame rod (28). The outer surface of the round rod (292) is slidably connected to the insertion rod (294). One end of the insertion rod (294) is provided with a spring (293). The two ends of the spring (293) are fixedly connected to one side of the rotating plate (25) and one end of the insertion rod (294), respectively. The two sides of the insertion rod (294) away from the spring (293) are inclined. The side of the frame plate (22) near the rotating plate (25) is provided with several round grooves (291). When the rotating plate (25) and the frame plate (22) are parallel to each other, one end of the insertion rod (294) on the outer surface of each round rod (292) on one side of the rotating plate (25) will be inside each round groove (291).

6. A conveying device for irradiation sterilization as described in claim 5, characterized in that: An auxiliary ring (295) is fixedly connected to one end of the inner wall of the circular groove (291), and the inner edge of the auxiliary ring (295) is arc-shaped.

7. A conveying device for irradiation sterilization as described in claim 6, characterized in that: Inclined grooves (296) are respectively provided on both sides of the frame plate (22).

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