Conveying device for tray containing irradiation materials

Abstract

The invention relates to the technical field of irradiation equipment, in particular to a conveying device for irradiation materials contained in trays, which comprises a plurality of first conveying mechanisms, a second conveying mechanism and an adjusting mechanism, the plurality of first conveying mechanisms are continuously arranged along the conveying direction, the second conveying mechanism is arranged at the conveying tail end of the last first conveying mechanism, and the adjusting mechanism is arranged at the conveying tail end of the second conveying mechanism. The first conveying mechanism comprises a plurality of first conveying rollers and second conveying rollers which are equal in number, the first conveying rollers can slide in the vertical direction and have corresponding first positions and second positions before and after sliding, and the second conveying mechanism is arranged at the conveying tail end of the last first conveying mechanism and comprises a plurality of third conveying rollers. And the third conveying rollers and the first conveying rollers are the same in rotating direction and are both configured to be capable of transporting the trays, the adjusting mechanism is used for driving the first conveying rollers to be switched between the first position and the second position so as to adjust the distance between every two adjacent trays to be the preset distance, and time and labor are saved while the optimal radiation layout is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of irradiation equipment, in particular to a conveying device for holding irradiated materials on a tray. Background Art

[0002] Irradiation technology is a technology that uses radiation (such as electrons, gamma rays, etc.) to interact with matter, ionizing and exciting the generated activated atoms and molecules, thereby causing physical, chemical or biological changes in matter. It has a wide range of applications, including but not limited to food preservation, sterilization of medical and sanitary products, polymer material processing, environmental protection, industrial wastewater treatment and other fields.

[0003] During the irradiation process, it is necessary to first place the material to be irradiated on a tray, and then place the tray on a conveying device for transportation, so as to continuously irradiate the material to be irradiated. In the related technology, a Chinese reference document with authorization announcement number CN211109321U discloses a conveying mechanism of an irradiation device over-source mechanism. When the conveying mechanism of the irradiation device over-source mechanism is in use, an inclined plate and a storage plate are set, and the first hinge and the second hinge are used for folding and storage, so that the object can be pushed onto the rotating roller through the transition platform. By setting a working plate and a telescopic plate, the opening size of the through slot can be controlled to avoid external interference, while ensuring the irradiation work efficiency.

[0004] Although the above-mentioned irradiation device source conveying mechanism reduces the labor intensity of workers to a certain extent, it is found in actual use that in order to achieve the best irradiation layout, it is often necessary to manually adjust the tray spacing and tray position, which results in large errors and affects the irradiation efficiency. Summary of the invention

[0005] Based on this, it is necessary to provide a conveying device for irradiated materials on a tray to address the problem of low irradiation efficiency in the current irradiation process.

[0006] The above purpose is achieved through the following technical solutions: A conveying device for irradiated materials on a tray, comprising: A plurality of conveying mechanisms 1, wherein the plurality of conveying mechanisms 1 are continuously arranged along the conveying direction, and the conveying mechanism 1 comprises a plurality of conveying rollers 1 and 2 which are equal in number, wherein the conveying rollers 1 and 2 are both arranged transversely and in parallel, and are equally spaced and alternately arranged along the conveying direction, wherein the conveying rollers 1 can slide along the vertical direction, and have corresponding first and second positions before and after sliding, wherein the conveying rollers 1 can rotate on their own when in the first position, and the conveying rollers 1 and 2 can rotate on their own when in the second position, and the rotation directions are opposite; Conveying mechanism 2, the conveying mechanism 2 is arranged at the conveying end of the last conveying mechanism 1, the conveying mechanism 2 comprises a plurality of conveying rollers 3, the conveying rollers 3 are all arranged transversely and parallel to the conveying roller 1 and can rotate, the plurality of conveying rollers 3 are arranged at equal intervals along the conveying direction, the conveying rollers 3 and the conveying roller 1 have the same rotation direction, and are both configured to transport pallets; An adjustment mechanism is configured to drive the conveying roller 1 to switch between the first position and the second position to adjust the distance between two adjacent trays to a preset distance.

[0007] Furthermore, the adjustment mechanism includes an elastic member, an adjustment rod 1 and an adjustment rod 2 of equal structure, the length of the adjustment rod 1 is equal to the distance between two adjacent conveying rollers 1, the length of the adjustment rod 2 is equal to the preset spacing, and wedge blocks 1 and 2 are provided at both ends of the adjustment rod 1 and the adjustment rod 2, and the wedge blocks 1 and 2 cooperate with the conveying roller 1 to stop when in use; there are multiple adjustment rods 1, and they are arranged at equal intervals along the conveying direction, two adjacent adjustment rods 1 are staggered along the axial direction of the conveying roller 1, and the wedges of the two adjacent adjustment rods 1 Block 1 and wedge block 2 are located below the same conveying roller 1; the wedge block 2 of the adjusting rod 2 and the wedge block 1 of the last adjusting rod 1 along the conveying direction are arranged correspondingly, the wedge block 1 of the adjusting rod 2 is located below one of the conveying rollers 3, and there is a stop fit between the wedge block 1 and the conveying roller 3, the conveying roller 3 can slide in the vertical direction, and has the corresponding first position and second position before and after sliding; there are multiple elastic members, and they are arranged one by one with the adjusting rod 1 and the adjusting rod 2, and under the action of the elastic members, the adjusting rod 1 and the adjusting rod 2 both have a tendency to reset.

[0008] Furthermore, the length of the tray is N times the distance between two adjacent conveying rollers 1 and 2, where N is an odd number and greater than 1.

[0009] Furthermore, when initially placed, the distance between two adjacent trays is smaller than the preset distance.

[0010] Furthermore, the length of the second adjusting rod can be changed to adjust the preset distance.

[0011] Furthermore, the elastic member is a spring.

[0012] Furthermore, a friction pattern 1 is spirally arranged on the circumferential side wall of the conveying roller 1, the beginning and the end of the friction pattern 1 are located on the same straight line, there are multiple friction patterns 1, and they are evenly arranged along the circumference, and the cooperation between the friction pattern 1 and the tray is friction transmission.

[0013] Furthermore, a friction pattern 2 is spirally arranged on the circumferential side wall of the conveying roller 2, the beginning and the end of the friction pattern 2 are located on the same straight line, the spiral directions of the friction pattern 2 and the friction pattern 1 are opposite, and the number of the friction pattern 2 is equal to the number of the friction pattern 1, and they are evenly arranged along the circumferential direction, and the cooperation mode between the friction pattern 2 and the tray is friction transmission.

[0014] Furthermore, the conveying mechanism 1 also includes a driving component 1, and the driving component 1 is configured to provide a driving force for the self-rotation of the conveying roller 1 and the conveying roller 2.

[0015] Furthermore, the second conveying mechanism also includes a second driving component, and the second driving component is configured to provide a driving force for the second conveying roller to rotate.

[0016] The beneficial effects of the present invention are: The conveying device for holding irradiated materials on a tray provided by the present invention first drives conveying rollers 1 and 3 to rotate when in use, and then continuously places the trays holding the irradiated materials on the first conveying mechanism 1. As conveying roller 1 rotates, the trays holding the irradiated materials move along the conveying direction and move from conveying mechanism 1 to conveying mechanism 2. During the movement of the tray holding the irradiated materials, conveying roller 1 switches between the first position and the second position under the action of the adjusting mechanism. When conveying roller 1 is in the second position, conveying roller 1 and conveying roller 2 both rotate on their own in opposite directions to adjust the distance between two adjacent trays to a preset spacing, thereby achieving the best radiation layout while saving time and effort and improving irradiation efficiency.

[0017] Furthermore, by setting friction pattern 1, when the position of the tray containing the irradiated material remains unchanged under the joint rotation of conveyor roller 1 and conveyor roller 2, the tray containing the irradiated material can be moved along the axial direction of conveyor roller 1 to the middle part of conveyor roller 1 under the friction transmission action of friction pattern 1, thereby realizing automatic correction of the irradiation position of the irradiated material and improving the irradiation effect.

[0018] Furthermore, by setting a friction pattern 2 having a spiral direction opposite to that of the friction pattern 1, when the position of the tray containing the irradiated material remains unchanged under the joint rotation of the conveyor rollers 1 and 2, under the joint friction transmission action of the friction pattern 1 and the friction pattern 2, the tray containing the irradiated material can be translated along the axial direction of the conveyor roller 1 to the middle part of the conveyor roller 1, thereby avoiding misalignment caused by deflection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the three-dimensional structure of a conveying device for holding irradiated materials on a tray provided in one embodiment of the present invention; Figure 2 A schematic cross-sectional view of a conveying device for holding irradiated materials on a tray provided in one embodiment of the present invention; Figure 3 for Figure 2 A schematic diagram of the partially enlarged structure at center A; Figure 4 A schematic diagram of the three-dimensional structure of a conveying mechanism 1 of a conveying device for conveying irradiated materials on a tray provided in an embodiment of the present invention; Figure 5 for Figure 4 A schematic diagram of the partially enlarged structure at B in the middle; Figure 6 A schematic diagram of the three-dimensional structure of a frame 1 of a conveying device for carrying irradiated materials on a tray provided in an embodiment of the present invention; Figure 7 for Figure 6 A schematic diagram of the partially enlarged structure at C in the middle; Figure 8 A schematic diagram of the three-dimensional structure of a conveying mechanism 1 of a conveying device for holding irradiated materials on a tray without a frame 1 and an adjusting rod 1 provided in an embodiment of the present invention; Fig. 9 A schematic diagram of the three-dimensional structure of an adjusting rod 1 of a conveying device for irradiated materials on a tray provided by an embodiment of the present invention; Fig.10 A schematic diagram of the three-dimensional structure of a conveying roller 1, a conveying roller 2, a frame 1 and an adjusting rod 1 of a conveying device for conveying irradiated materials on a tray provided by an embodiment of the present invention when they are assembled; Fig.11 A schematic diagram of the three-dimensional structure of a conveying roller 1, a conveying roller 2 and an adjusting rod 1 when assembled in a conveying device for conveying irradiated materials on a tray provided by an embodiment of the present invention; Fig.12 This is a front view structural schematic diagram of the assembly of conveying roller 1, conveying roller 2 and adjusting rod 1 of a conveying device for conveying irradiated materials on a tray provided by an embodiment of the present invention.

[0020] in: 1. Conveying mechanism 1; 11. Frame 1; 111. Side frame; 1111. Mounting hole 1; 1112. Mounting hole 2; 112. Crossbar; 113. Guide rail; 12. Conveying roller 1; 121. Friction pattern 1; 13. Conveying roller 2; 131. Friction pattern 2; 14. Bearing sleeve; 15. Friction wheel; 16. Pulley 1; 17. Conveyor belt 1; 18. Motor 1; 2. Conveying mechanism 2; 21. Frame 2; 211. U-shaped rod; 22. Conveying roller 3; 23. Motor 2; 3. Adjustment rod 1; 31. Wedge block 1; 32. Wedge block 2; 4. Adjustment lever 2. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0022] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0023] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0024] like Figures 1 to 12 As shown, a conveying device for irradiated materials contained in a tray provided in an embodiment of the present invention is used to transport a tray containing irradiated materials; in this embodiment, the conveying device for irradiated materials contained in a tray is configured to include a plurality of conveying mechanisms 1, a conveying mechanism 2 and an adjusting mechanism, and the plurality of conveying mechanisms 1 are continuously arranged along the conveying direction. For example, four conveying mechanisms 1 are arranged. Figure 1 As shown, four conveying mechanisms 1 are extended along the same straight line direction, and adjacent conveying mechanisms 1 are connected to convey the pallet transported by the previous conveying mechanism 1.

[0025] The conveying mechanism 1 is configured to include an equal number of conveying rollers 12 and conveying rollers 13. The conveying rollers 12 and conveying rollers 13 are both arranged horizontally and in parallel, and are equally spaced and alternately arranged along the conveying direction. The conveying roller 12 can slide in the vertical direction and has a corresponding first position and a second position before and after sliding. When in the first position, the conveying roller 12 can rotate on its own. When in the second position, the conveying rollers 12 and conveying rollers 13 can both rotate on their own, and the rotation directions are opposite.

[0026] Specifically, in order to facilitate the installation of the conveying roller 12 and the conveying roller 2 13, the conveying mechanism 1 is configured to also include a frame 11, such as Figure 6 As shown, the frame 11 is configured to be composed of two side frames 111 and two cross bars 112, wherein the side frame 111 is configured to be a "П"-shaped frame structure, and has a horizontal section and two vertical sections that are vertically arranged, the length direction of the horizontal section is arranged in parallel with the conveying direction, the two cross bars 112 are arranged correspondingly to the two vertical sections of the same side frame 111, and when installed, it is configured such that the rear end of the left cross bar 112 is vertically and fixedly connected to the left cross bar 112 of the rear side frame 111, and the front end is vertically and fixedly connected to the left cross bar 112 of the front side frame 111, the rear end of the right cross bar 112 is vertically and fixedly connected to the right cross bar 112 of the rear side frame 111, and the front end is vertically and fixedly connected to the right cross bar 112 of the front side frame 111; the horizontal section of the left side frame 111 The cross section is configured to be formed by two "г"-shaped symmetrically spliced ​​together, the cross section of the right side frame 111 is configured to be "τ"-shaped, and an equal number of mounting holes 1111 and mounting holes 2 1112 are provided on the side wall surface of the horizontal section of the side frame 111, and the multiple mounting holes 1111 and the multiple mounting holes 2 1112 are arranged at equal intervals and alternately along the length direction of the horizontal section, the mounting holes 1111 on the two side frames 111 of the same frame 11 are arranged in a one-to-one correspondence, and the line between the two corresponding mounting holes 1111 and the cross bar 112 are arranged in parallel, the mounting holes 2 1112 on the two side frames 111 of the same frame 11 are arranged in a one-to-one correspondence, and the line between the two corresponding mounting holes 2 1112 and the cross bar 112 are arranged in parallel, such as Figure 4 As shown, the conveying roller 12 and the conveying roller 2 13 are both arranged to be parallel to the cross bar 112 during installation, and the left end of the conveying roller 12 can be rotatably inserted in the mounting hole 1111 of the left side frame 111, and the right end can be rotatably inserted in the mounting hole 1111 of the right side frame 111, and the left end of the conveying roller 2 13 can be rotatably inserted in the mounting hole 2 1112 of the left side frame 111, and the right end can be rotatably inserted in the mounting hole 2 1112 of the right side frame 111.

[0027] For example, the number of conveying rollers 12 and conveying rollers 13 can be seven, and the seven conveying rollers 12 and the seven conveying rollers 13 are equally spaced and alternately arranged along the length direction of the horizontal section of the side frame 111; the number of mounting holes 1111 and mounting holes 1112 on the horizontal section of each side frame 111 can be seven, and the seven mounting holes 1111 and the seven mounting holes 1112 are equally spaced and alternately arranged along the length direction of the horizontal section of the side frame 111, the conveying roller 12 and the two mounting holes 1111 correspondingly set on the two side frames 111 of the same frame 11 are correspondingly inserted, and the conveying roller 13 and the two mounting holes 1112 correspondingly set on the two side frames 111 of the same frame 11 are correspondingly inserted.

[0028] In order to enable the conveying roller 12 to slide in the vertical direction, Figure 7 As shown, the shape of the mounting hole 1111 is set to be the same as the shape of the A-type flat key (rounded rectangle), the shape of the mounting hole 1112 is set to be circular, and the bottom of the mounting hole 1111 is flush with the bottom of the mounting hole 1112, and the top of the mounting hole 1111 is higher than the top of the mounting hole 1112, so as to leave space for the conveying roller 12 to slide in the vertical direction; when the conveying roller 12 is located at the top of the mounting hole 1111, the conveying roller 12 is located at the first position, and when the conveying roller 12 is located at the bottom of the mounting hole 1111, the conveying roller 12 is located at the second position.

[0029] More specifically, in order to improve the stability of the conveying roller 12 and the conveying roller 2 13 during rotation, a bearing sleeve 14 is sleeved on the end of each conveying roller 12 and the conveying roller 2 13, and the bearing sleeve 14 is set on the horizontal section of the side frame 111 during installation.

[0030] The conveying mechanism 2 is arranged at the conveying end of the last conveying mechanism 1. Figure 1 As shown, the conveying mechanism 2 2 is arranged on the left side of the fourth conveying mechanism 1 from the top to the bottom, and is connected to the conveying mechanism 1 to receive the pallet transported by the conveying mechanism 1.

[0031] The conveying mechanism 2 is configured to include multiple conveying rollers 3 22. The conveying rollers 3 22 are all arranged horizontally and parallel to the conveying roller 1 12 and can rotate. The multiple conveying rollers 3 22 are arranged at equal intervals along the conveying direction. The conveying rollers 3 22 and the conveying roller 1 12 have the same rotation direction and are both configured to transport pallets.

[0032] Specifically, in order to facilitate the installation of the conveying roller 3 22, the conveying mechanism 2 is configured to also include a frame 21, such as Figure 1As shown, the structures of the frame 21 and the frame 11 are similar, and the only difference is that the structure connecting the two side frames 111 in the frame 21 is a U-shaped rod 211; a plurality of mounting holes 3 are penetrated and opened on the side wall surface of the horizontal section of the side frame 111 of the frame 21, and the plurality of mounting holes 3 are equally spaced and alternately arranged along the length direction of the horizontal section, and the mounting holes 3 on the two side frames 111 of the frame 21 are arranged one by one, and the connecting line between the two corresponding mounting holes 3 is arranged parallel to the U-shaped rod 211, and the conveying roller 3 22 is arranged to be parallel to the U-shaped rod 211 during installation, and the left end of the conveying roller 3 22 can be rotatably inserted in the mounting hole 3 of the left side frame 111 of the frame 21, and the right end can be rotatably inserted in the mounting hole 3 of the right side frame 111 of the frame 21.

[0033] The adjustment mechanism is configured to drive the conveying roller 12 to switch between the first position and the second position to adjust the distance between two adjacent trays to a preset distance.

[0034] Initially, the conveying roller 12 is located at the first position.

[0035] During use, if Figure 1 As shown, first, the conveying roller 12 and the conveying roller 3 22 are driven to rotate, and then the trays containing the irradiated materials are continuously placed on the first conveying mechanism 1 from the top to the bottom. As the conveying roller 12 rotates, the trays containing the irradiated materials move along the conveying direction, first moving from the first conveying mechanism 1 from the top to the second conveying mechanism 1 from the top to the bottom, and then moving from the second conveying mechanism 1 from the top to the third conveying mechanism 1 from the top to the bottom, and then moving from the third conveying mechanism 1 from the top to the fourth conveying mechanism 1 from the top to the bottom, and then moving from the fourth conveying mechanism 1 from the top to the conveying mechanism 2 2. As the conveying roller 3 22 rotates, the trays containing the irradiated materials move along the preset irradiation path to be irradiated.

[0036] During the movement of the trays containing irradiated materials, when the first tray containing irradiated materials moves to the set position on the conveying mechanism 2, part of the conveying roller 12 moves from the first position to the second position under the action of the adjusting mechanism. At this time, the conveying roller 12 located at the second position and the conveying roller 2 13 adjacent thereto are in a reverse rotation state, and the trays containing irradiated materials thereon remain stationary. As the conveying roller 3 22 continues to rotate, the first tray containing irradiated materials continues to move until the distance between it and the second tray containing irradiated materials is a preset distance. At this time, part of the conveying roller 12 moves from the second position to the first position under the action of the adjusting mechanism, so that the trays containing irradiated materials can continue to move, and so on, so that all trays containing irradiated materials transported on the conveying mechanism 2 can achieve the optimal radiation layout, saving time and effort and improving the irradiation efficiency.

[0037] In some embodiments, the adjustment mechanism is configured to include an elastic member, an adjustment rod 1 3 and an adjustment rod 2 4 with equal structures. The length of the adjustment rod 1 3 is equal to the distance between two adjacent conveying rollers 12, and the length of the adjustment rod 2 4 is equal to the preset spacing. Wedge blocks 1 31 and wedge blocks 2 32 are provided at both ends of the adjustment rod 1 3 and the adjustment rod 2 4. When in use, the wedge blocks 1 31 and the wedge blocks 2 32 cooperate with the conveying roller 12 to form a stop.

[0038] In this embodiment, if Fig. 9 As shown, the adjusting rod 13 is set to a square rod-shaped structure, the cross-sectional shape of the wedge block 131 is a right triangle, and the bottom where the right-angled side is located is coincident with the top of the adjusting rod 13, the side where the other right-angled side is located is coincident with the right end face of the adjusting rod 13, and the wedge surface where the hypotenuse is located is set to the left, and the wedge block 232 is set to have a right trapezoidal cross-sectional shape, and the wedge surface where the oblique waist is located is set to the left, the side where the straight waist is located is vertically arranged with the top of the adjusting rod 13, and the bottom where the long bottom side is located is coincident with the top of the adjusting rod 13; and the inclination of the wedge surface where the oblique side of the wedge block 131 is located is greater than the inclination of the wedge surface where the oblique waist of the wedge block 232 is located, so that the driving force required to push the wedge surface of the wedge block 131 is smaller, and the wedge block 232 gives a larger thrust to the conveying roller 12 to move upward.

[0039] Specifically, in order to facilitate the installation of the adjusting rod 1 3 and the adjusting rod 2 4, as shown in FIG. Figure 4 and Figure 5 As shown, a horizontal "F"-shaped guide rail 113 is arranged on the left side wall of the horizontal section of the right side frame 111 of the frame 11, and the guide rail 113 is extended along the length direction of the horizontal section. The upper end surface of the guide rail 113 has two parallel slide grooves. The adjustment rod 1 3 and the adjustment rod 2 4 are arranged to be parallelly inserted in the slide grooves during installation, and can slide along the slide grooves.

[0040] There are multiple adjusting rods 3, and they are arranged at equal intervals along the conveying direction. Two adjacent adjusting rods 3 are staggered along the axial direction of the conveying roller 12, and the wedge blocks 1 31 and wedge blocks 2 32 of two adjacent adjusting rods 3 are located below the same conveying roller 12; the wedge block 2 32 of the adjusting rod 2 4 and the wedge block 31 of the last adjusting rod 3 along the conveying direction are correspondingly arranged, the wedge block 31 of the adjusting rod 2 4 is located below one of the conveying rollers 3 22, and there is a stop fit between the adjusting rod 2 4 and the conveying roller 3 22. The conveying roller 3 22 can slide in the vertical direction and has a corresponding first position and second position before and after sliding.

[0041] Specifically, Figure 2 As shown, two adjacent adjusting rods 3 are arranged to be inserted into two slide grooves respectively during installation; the wedge block 131 on the adjusting rod 24 is located below the sixth conveying roller 3 22 from the right to the left, and under the pushing action of the wedge surface of the wedge block 131 on the adjusting rod 24, the sixth conveying roller 3 22 from the right to the left is located in the first position, the wedge block 232 on the adjusting rod 24 and the wedge block 131 of the first adjusting rod 3 from the right to the left are located below the first conveying roller 12 from the right to the left, and the top surface where the short top edge of the wedge block 232 on the adjusting rod 24 is located and the wedge surface of the wedge block 131 of the first adjusting rod 3 from the right to the left are located together. Under the pushing action, the first conveying roller 12 from right to left is located in the first position; at the same time, the wedge block 2 32 of the first adjusting rod 3 from right to left is located below the second conveying roller 12 from right to left, and the wedge block 31 of the second adjusting rod 3 from right to left is located below the second conveying roller 12 from right to left. Under the common pushing action of the top surface where the short top edge of the wedge block 2 32 of the first adjusting rod 3 from right to left is located and the wedge surface of the wedge block 31 of the second adjusting rod 3 from right to left, the second conveying roller 12 from right to left is located in the first position, and so on. All conveying rollers 12 are located in the first position.

[0042] There are multiple elastic members, and they are arranged in a one-to-one correspondence with the adjusting rod 1 3 and the adjusting rod 2 4. Under the action of the elastic members, the adjusting rod 1 3 and the adjusting rod 2 4 both have a tendency to reset.

[0043] In this embodiment, the elastic member is configured as a spring (not shown in the figure), and when the spring is a compression spring, the compression spring is arranged on the right side of the adjusting rod 1 3 or the adjusting rod 2 4, and one end is fixedly connected to the horizontal section of the side frame 111, and the other end is fixedly connected to the right end of the adjusting rod 1 3 or the adjusting rod 2 4. Under the action of the compression spring, the adjusting rod 1 3 and the adjusting rod 2 4 both have a tendency to move to the left, so that the conveying roller 1 12 or the conveying roller 3 22 has a tendency to remain in the first position; similarly, when the spring is a tension spring, the tension spring is arranged on the left side of the adjusting rod 1 3 or the adjusting rod 2 4, and one end is fixedly connected to the horizontal section of the side frame 111, and the other end is fixedly connected to the left end of the adjusting rod 1 3 or the adjusting rod 2 4. Under the action of the tension spring, the adjusting rod 1 3 and the adjusting rod 2 4 both have a tendency to move to the left, so that the conveying roller 1 12 or the conveying roller 3 22 has a tendency to remain in the first position.

[0044] like Figure 2 As shown, during the movement of the tray containing irradiated materials, when the right end of the first tray containing irradiated materials moves to above the conveying roller three 22 (the sixth conveying roller three 22 from right to left) supported by the wedge block one 31 on the adjusting rod two 4, under the action of the gravity of the first tray containing irradiated materials, the conveying roller three 22 moves downward from the first position to the second position in the vertical direction. During the movement of the conveying roller three 22, the conveying roller three 22 synchronously drives the adjusting rod two 4 to move to the right through the inclined surface, and allows the corresponding spring to accumulate force. During the movement of the adjusting rod two 4, the wedge block two 32 on the adjusting rod two 4 synchronously moves to the right and no longer blocks the downward movement of the first conveying roller one 12 from right to left. As the conveying roller one 12 rotates, when the second tray containing irradiated materials passes the first conveying roller one 12 from right to left, Under the action of gravity of the second tray containing irradiated materials, the conveying roller 12 moves downward in the vertical direction from the first position to the second position. During the movement of the conveying roller 12, the conveying roller 12 synchronously drives the first adjusting rod 3 from right to left to move to the right through the inclined surface, and allows the corresponding spring to accumulate force. During the movement of the adjusting rod 3 to the right, the wedge block 2 32 on the adjusting rod 3 moves to the right synchronously, and no longer blocks the downward movement of the second conveying roller 12 from right to left, and so on, and continuously unlocks the other adjusting rods 3; when the conveying roller 12 moves to the second position, the conveying roller 12 and the adjacent conveying roller 2 13 rotate synchronously in the opposite direction, so that the second tray containing irradiated materials remains stationary, and so on, so that all trays containing irradiated materials remain stationary after being in place.

[0045] As the conveying roller three 22 continues to rotate, the first tray containing irradiated materials continues to move until the distance between the first tray containing irradiated materials is a preset distance. At this time, the left end of the first tray containing irradiated materials passes over the conveying roller three 22 (the sixth conveying roller three 22 from right to left) supported by the wedge block one 31 on the adjusting rod two 4. Under the action of the corresponding spring, the adjusting rod two 4 moves to the left to the initial position. At this time, under the joint pushing action of the wedge surface of the wedge block two 32 of the first adjusting rod one 3 from right to left and the wedge surface of the wedge block one 31 of the adjusting rod two 4, the first conveying roller one 12 from right to left moves upward in the vertical direction from the second position to the first position, and the conveying roller two 13 adjacent to the conveying roller one 12 stops rotating. Then, driven by the conveying roller one 12, the second tray containing irradiated materials can continue to move, and the above process is repeated. Thereby, all trays containing irradiated materials transported on the conveying mechanism 2 can achieve the best radiation layout, saving time and labor and improving the irradiation efficiency.

[0046] In a further embodiment, to ensure the normal operation of the conveying device, the length of the tray is set to be N times the distance between two adjacent conveying rollers 12 and 13, where N is an odd number and greater than 1, so that when the tray remains stationary, there are an equal number of conveying rollers 12 and 13 correspondingly below it; for example, Figure 2 As shown, N can be set to nine, so that when the pallet remains stationary, there are five conveyor rollers 12 and five conveyor rollers 13 correspondingly underneath it; and under the linkage of conveyor mechanism 1 and conveyor mechanism 2, the distance between the pallets can only be increased, so it is set that the distance between two adjacent pallets during initial placement is less than the preset spacing.

[0047] In other embodiments, in order to improve the applicability of the conveying device, the length of the adjusting rod 2 4 is adjustable to adjust the preset spacing.

[0048] In this embodiment, all the conveying rollers three 22 are configured to be able to slide in the vertical direction, and the adjusting rod two 4 is configured to be able to be extended, and the length after extension can be locked to change the conveying roller three 22 supported by the wedge block one 31 on the adjusting rod two 4.

[0049] Specifically, the shapes of all the mounting holes three can be set to be the same as the shape of the A-type flat key to provide space for the conveying roller three 22 to slide in the vertical direction.

[0050] In other embodiments, a friction pattern 121 is spirally arranged on the circumferential side wall of the conveying roller 12, the beginning and the end of the friction pattern 121 are located on the same straight line, there are multiple friction patterns 121, and they are evenly arranged along the circumferential direction, and the cooperation between the friction pattern 121 and the tray is friction transmission.

[0051] In this embodiment, if Figure 4 As shown, the friction pattern 1 121 is configured as a symmetrical structure and spirals from left to right in a clockwise direction. There are three friction patterns 121 and they are evenly arranged along the circumferential direction.

[0052] During use, when the tray containing the irradiated material remains in a constant position under the joint rotation of the conveying roller 12 and the conveying roller 2 13, as shown in FIG. Figure 4 As shown, when the conveying roller 12 rotates counterclockwise and the position of the tray containing the irradiated material is biased to the left, the area of ​​the left friction pattern 121 occupied by the tray on the same conveying roller 12 is larger than the area of ​​the right friction pattern 121, and the tray is subjected to a downward force F1 to the right under the friction transmission of the left friction pattern 121, and the tray is subjected to a downward force F2 to the left under the friction transmission of the right friction pattern 121. Since the pressure of the tray on the conveying roller 12 is equal everywhere, when the material (friction coefficient) of the friction pattern 121 remains unchanged, F1>F2. After decomposition, F1 has a component force F11 that moves the tray to the right, and F2 has a component force F21 that moves the tray to the left, and F11>F21. Therefore, under the friction transmission of the friction pattern 121, the tray containing the irradiated material can move to the right to the middle of the conveying roller 12, thereby realizing automatic correction of the irradiation position of the irradiated material and improving the irradiation effect.

[0053] Similarly, when the position of the tray containing the irradiated material is biased to the right, the tray containing the irradiated material can be moved to the left to the middle of the conveying roller 12 under the friction transmission action of the friction pattern 121, thereby automatically correcting the irradiation position of the irradiated material and improving the irradiation effect.

[0054] In a further embodiment, since F1 simultaneously has a component force F12 that causes the tray to move downward, and F2 simultaneously has a component force F22 that causes the tray to move downward, and F12≠F22, the tray tends to deflect in a counterclockwise direction under the joint action of F12 and F22. When the tray deflects, the irradiation position of the irradiated material contained in the tray will change, thereby affecting the irradiation effect. To solve this problem, a friction pattern 131 is spirally arranged on the circumferential side wall of the conveying roller 13, and the head and end of the friction pattern 131 are located on the same straight line. The spiral directions of the friction pattern 131 and the friction pattern 1 121 are opposite, and the number is equal to the number of the friction pattern 1 121, and they are evenly arranged along the circumferential direction. The cooperation between the friction pattern 131 and the tray is friction transmission.

[0055] In this embodiment, if Figure 4As shown, the friction pattern 131 is set to a symmetrical structure and spirals from left to right in a counterclockwise direction. The number of friction patterns 131 is set to three and is evenly arranged along the circumferential direction. Initially, the friction pattern 1 121 on the adjacent conveying roller 12 and the friction pattern 131 on the conveying roller 2 13 are symmetrically arranged.

[0056] During use, when the position of the tray containing irradiated materials remains unchanged under the joint rotation of the conveying roller 12 and the conveying roller 2 13, when the conveying roller 12 rotates counterclockwise and the position of the tray containing irradiated materials is biased to the left, the conveying roller 13 rotates clockwise at this time, and the area of ​​the left friction pattern 2 131 occupied by the tray on the same conveying roller 2 13 is larger than the area of ​​the right friction pattern 2 131, and the tray is subjected to an upward force F3 to the right under the friction transmission of the left friction pattern 1 121, and the tray is subjected to an upward force F4 to the left under the friction transmission of the right friction pattern 1 121. Since the pressure of the tray on the conveying roller 2 13 is equal everywhere, therefore, when the material (friction coefficient) of the friction pattern 2 131 remains unchanged, F3>F4, after decomposition , F3 has a force component F31 that moves the tray to the right, and F4 has a force component F41 that moves the tray to the left, F31>F41, so under the joint friction transmission of friction pattern 121 and friction pattern 2 131, the tray containing irradiated materials can move to the right to the middle of conveying roller 12, thereby realizing automatic correction of the irradiation position of the irradiated materials and improving the irradiation effect; F3 also has a force component F32 that moves the tray upward, and F4 also has a force component F42 that moves the tray upward, F32≠F42, F32=F12, and in opposite directions, F42=F22, and in opposite directions, so under the joint action of F12, F22, F32, and F42, the tray can be translated to the middle of conveying roller 12 to avoid misalignment caused by deflection.

[0057] Similarly, when the tray containing the irradiated material is positioned to the right, the tray containing the irradiated material can be translated to the left to the middle of the conveying roller 1 12 under the joint friction transmission action of the friction pattern 1 121 and the friction pattern 2 131, thereby avoiding misalignment caused by deflection.

[0058] In some other embodiments, the conveying mechanism 1 is configured to further include a driving component 1, and the driving component 1 is configured to provide a driving force for the conveying roller 12 and the conveying roller 2 13 to rotate.

[0059] In this embodiment, if Figure 8As shown, the driving assembly 1 can be configured to include a friction wheel 15, a pulley 16, a conveyor belt 17 and a motor 18, wherein the number of motors 18 is equal to that of the conveying mechanism 1, and they are configured to be fixed on the horizontal section of the frame 11 in a one-to-one correspondence during installation; there are multiple friction wheels 15, which are configured to correspond to the conveying roller 12 and the conveying roller 2 13 in a one-to-one correspondence, and they are configured to be fixedly sleeved on the left end of the conveying roller 12 or the conveying roller 2 13 during installation. When the conveying roller 12 is in the first position, the friction wheel 15 on the conveying roller 12 and the adjacent The friction wheel 15 on the conveying roller 13 is out of contact. When the conveying roller 12 is in the second position, the friction wheel 15 on the conveying roller 12 rubs against the friction wheel 15 on the adjacent conveying roller 13. For a conveying mechanism 1, the number of pulleys 16 is one more than the number of conveying rollers 12, and they are arranged to be fixedly sleeved on the left end of the conveying roller 12 and the motor shaft of the motor 18 in a one-to-one correspondence during installation. The number of conveyor belts 17 is arranged to be equal to the number of conveying rollers 12, and they are sleeved on two adjacent pulleys 16 in a one-to-one correspondence.

[0060] For example, when the number of conveying mechanisms 1 is four and each conveying mechanism 1 is configured to include seven conveying rollers 12 and seven conveying rollers 2 13, the number of motors 18 is correspondingly set to four, the number of friction wheels 15 is correspondingly set to fifty-six, the number of pulleys 16 is correspondingly set to thirty-two, and the number of conveyor belts 17 is correspondingly set to twenty-eight.

[0061] During use, taking a conveying mechanism 1 and a conveying roller 12 located at the first position as an example, the motor 18 is started, and the motor 18 drives the first conveying roller 12 to rotate in the positive direction through the conveyor belt 17. During the positive rotation of the first conveying roller 12, the first conveying roller 12 drives the second conveying roller 12 to rotate in the positive direction through the conveyor belt 17, and so on, thereby driving all the conveying rollers 12 to rotate in the positive direction.

[0062] Taking a conveying mechanism 1 and a conveying roller 12 located at the second position as an example, the motor 18 is started, and the motor 18 drives the first conveying roller 12 to rotate in the forward direction through the conveyor belt 17. During the forward rotation of the first conveying roller 12, the first conveying roller 12 drives the second conveying roller 12 to rotate in the forward direction through the conveyor belt 17, and on the other hand, the friction transmission between the friction wheel 15 thereon and the friction wheel 15 on the first conveying roller 2 13 drives the first conveying roller 2 13 to rotate in the reverse direction, and so on, thereby driving all the conveying rollers 12 to rotate in the forward direction, and driving all the conveying rollers 2 13 to rotate in the reverse direction.

[0063] In other embodiments, it is also possible to use a sprocket wheel 1 instead of a pulley 16 , and a transmission chain 1 instead of a conveyor belt 17 .

[0064] In some other embodiments, the second conveying mechanism 2 is configured to further include a second driving component, and the second driving component is configured to provide a driving force for the second conveying roller 13 to rotate.

[0065] In this embodiment, the driving component 2 is configured to include a pulley 2, a conveyor belt 2 and a motor 23, wherein the motor 23 is configured to be fixed on the horizontal section of the side frame 111 of the frame 21 during installation; the number of pulleys 2 is one more than the number of conveyor rollers 3 22, and is configured to be fixedly sleeved on the left end of the conveyor roller 3 22 and the motor shaft of the motor 2 23 in a one-to-one correspondence during installation; the number of conveyor belts 2 is configured to be equal to the number of conveyor rollers 3 22, and is sleeved on two adjacent pulleys 2 in a one-to-one correspondence.

[0066] When in use, start the motor 23, and the motor 23 drives the first conveying roller 3 22 to rotate in the forward direction through the conveyor belt 2. During the forward rotation of the first conveying roller 3 22, the first conveying roller 3 22 drives the second conveying roller 3 22 to rotate in the forward direction through the conveyor belt 2, and so on, thereby driving all the conveying rollers 3 22 to rotate in the forward direction.

[0067] In other embodiments, it is also possible to use sprocket 2 instead of pulley 2, and drive chain 2 instead of conveyor belt 2.

[0068] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0069] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A conveying device for irradiated materials on a tray, characterized in that: include: A plurality of conveying mechanisms 1, wherein the plurality of conveying mechanisms 1 are continuously arranged along the conveying direction, and the conveying mechanism 1 comprises a plurality of conveying rollers 1 and 2 which are equal in number, wherein the conveying rollers 1 and 2 are both arranged transversely and in parallel, and are equally spaced and alternately arranged along the conveying direction, wherein the conveying rollers 1 can slide along the vertical direction, and have corresponding first and second positions before and after sliding, wherein the conveying rollers 1 can rotate on their own when in the first position, and the conveying rollers 1 and 2 can rotate on their own when in the second position, and the rotation directions are opposite; Conveying mechanism 2, the conveying mechanism 2 is arranged at the conveying end of the last conveying mechanism 1, the conveying mechanism 2 comprises a plurality of conveying rollers 3, the conveying rollers 3 are all arranged transversely and parallel to the conveying roller 1 and can rotate, the plurality of conveying rollers 3 are arranged at equal intervals along the conveying direction, the conveying rollers 3 and the conveying roller 1 have the same rotation direction, and are both configured to transport pallets; An adjusting mechanism is configured to drive the conveying roller 1 to switch between the first position and the second position to adjust the distance between two adjacent trays to a preset distance.

2. The conveying device for irradiated materials on trays according to claim 1, characterized in that: The adjusting mechanism comprises an elastic member, an adjusting rod 1 and an adjusting rod 2 of equal structure, the length of the adjusting rod 1 is equal to the distance between two adjacent conveying rollers 1, the length of the adjusting rod 2 is equal to the preset spacing, wedge blocks 1 and 2 are arranged at both ends of the adjusting rod 1 and the adjusting rod 2, and the wedge blocks 1 and 2 cooperate with the conveying roller 1 to stop when in use; there are multiple adjusting rods 1, and they are arranged at equal intervals along the conveying direction, two adjacent adjusting rods 1 are staggered along the axial direction of the conveying roller 1, and the wedge blocks 1 of two adjacent adjusting rods 1 and the wedge block 2 are located below the same conveying roller 1; the wedge block 2 of the adjusting rod 2 and the wedge block 1 of the last adjusting rod 1 along the conveying direction are arranged correspondingly, the wedge block 1 of the adjusting rod 2 is located below one of the conveying rollers 3, and there is a stop fit between the wedge block 1 and the conveying roller 3, the conveying roller 3 can slide in the vertical direction, and has the corresponding first position and second position before and after sliding; there are multiple elastic members, and they are arranged one by one with the adjusting rod 1 and the adjusting rod 2, and under the action of the elastic members, the adjusting rod 1 and the adjusting rod 2 both have a tendency to reset.

3. The conveying device for irradiated materials on trays according to claim 2, characterized in that: The length of the tray is N times the distance between two adjacent conveying rollers 1 and 2, where N is an odd number and greater than 1.

4. The conveying device for irradiated materials on trays according to claim 3, characterized in that: When initially placed, the distance between two adjacent trays is smaller than the preset distance.

5. The conveying device for irradiated materials on trays according to claim 2, characterized in that: The length of the adjusting rod 2 can be changed to adjust the preset distance.

6. The conveying device for irradiated materials on trays according to claim 2, characterized in that: The elastic member is a spring.

7. The conveying device for irradiated materials on trays according to claim 1, characterized in that: A friction pattern 1 is spirally arranged on the circumferential side wall of the conveying roller 1, the beginning and the end of the friction pattern 1 are located on the same straight line, there are multiple friction patterns 1, and they are evenly arranged along the circumference, and the cooperation between the friction pattern 1 and the tray is friction transmission.

8. The conveying device for irradiated materials on trays according to claim 7, characterized in that: A friction pattern 2 is spirally arranged on the circumferential side wall of the conveying roller 2, the head end and the tail end of the friction pattern 2 are located on the same straight line, the spiral direction of the friction pattern 2 is opposite to that of the friction pattern 1, and the number of the friction pattern 2 is equal to that of the friction pattern 1, and they are evenly arranged along the circumferential direction, and the cooperation mode between the friction pattern 2 and the tray is friction transmission.

9. The conveying device for irradiated materials on trays according to claim 1, characterized in that: The conveying mechanism 1 also includes a driving component 1, and the driving component 1 is configured to provide a driving force for the self-rotation of the conveying roller 1 and the conveying roller 2.

10. The conveying device for irradiated materials on trays according to claim 1, characterized in that: The second conveying mechanism further includes a second driving component, and the second driving component is configured to provide a driving force for the second conveying roller to rotate.

Images