An up-and-down layer backflow conveying device and detection equipment

Abstract

The application discloses a kind of upper and lower layer backflow transport devices and detection equipment, wherein the upper and lower layer backflow transport device includes: first slide rail and second slide rail are oppositely arranged;Two slide rail units are respectively liftable and are arranged at the two ends of second slide rail, to be spliced with the end of first slide rail or the end of second slide rail;Material carrier is slidably arranged on first slide rail, and material carrier can slide to slide rail unit or second slide rail, drive assembly, drive assembly is connected with material carrier, and it is used to drive material carrier to slide on first slide rail, second slide rail and slide rail unit and backflow up and down.In the present application, material carrier can be backflowed and slid on first slide rail and second slide rail by the up and down lifting of slide rail unit and the cooperation of drive assembly, wherein first slide rail and second slide rail are oppositely arranged, the occupied plane space is reduced, so that more material transport production lines can be installed in factory room, and land cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of transportation equipment technology, and in particular to a top-to-bottom reflux transportation device and testing equipment. Background Technology

[0002] Current battery production lines typically use planar return devices to transport batteries for testing, processing, and packaging. For example, patent publication number CN212952709U discloses a conveyor line that facilitates material transport. Although this planar return device is easy to install and maintain, it occupies a large area in the factory and takes up a lot of floor space, which is not conducive to saving indoor space and results in high land costs.

[0003] Therefore, existing technologies still need to be improved and enhanced. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide an upper and lower layer return transport device and testing equipment, which aims to solve the problem that although the planar return device in the prior art is easy to install and maintain, it occupies a large area in the factory and occupies a lot of planar space, which is not conducive to saving indoor space and leads to high land cost.

[0005] The technical solution adopted by this invention to solve the technical problem is as follows:

[0006] In a first aspect, embodiments of the present invention provide an upper and lower layer return transport device, comprising:

[0007] The first slide rail and the second slide rail are arranged vertically opposite each other.

[0008] Two slide rail units are respectively installed at both ends of the second slide rail in a liftable manner to be spliced ​​with the end of the first slide rail or the end of the second slide rail.

[0009] A material carrier, which is slidably mounted on the first slide rail and can slide onto the slide rail unit and the second slide rail;

[0010] A drive assembly is connected to the material carrier and is used to drive the material carrier to slide and move up and down on the first slide rail, the second slide rail and the slide rail unit.

[0011] As a further improved technical solution, the material carrier is provided in multiple ways and is slidably arranged on the production line composed of the first slide rail, the second slide rail and the slide rail unit. The drive assembly can drive each of the material carriers to slide and flow back and forth on the production line.

[0012] As a further improved technical solution, each of the material carriers is provided with a snap-fit ​​part on one side and a fastening part on the other side, and two adjacent material carriers are snapped together by the snap-fit ​​parts and fastening parts on their adjacent sides.

[0013] As a further improved technical solution, the drive assembly includes a first drive mechanism and a second drive mechanism;

[0014] The first drive mechanism is disposed on the side of the first slide rail and connected to the upper material carrier to drive the upper material carrier to slide.

[0015] The second drive mechanism is disposed on the side of the second slide rail and connected to each of the material carriers in the lower layer to drive each of the material carriers in the lower layer to slide.

[0016] As a further improved technical solution, the first driving mechanism includes a lead screw motor, a first slider, a first cylinder, a second slider, and a locking block; the lead screw motor is located near the side of the first slide rail, the first slider is mounted on the lead screw motor and can be driven by the lead screw motor to slide along the length direction of the first slide rail, the second slider is slidably mounted on the first slider, the first cylinder is mounted on the first slider and connected to the second slider to drive the second slider to slide toward the side of the first slide rail, and the locking block is located at one end of the second slider near the first slide rail;

[0017] Each of the material carriers is provided with a buckle plate on its side, and the first cylinder is used to drive the locking block at the end of the second slider to engage with the buckle plate.

[0018] As a further improved technical solution, the second driving mechanism includes a drive motor, a conveyor belt and a driven wheel. The drive motor and the driven wheel are respectively close to the two slide rail units. The two ends of the conveyor belt are respectively sleeved on the drive motor and the driven wheel, and are driven to run by the drive motor. One side of the conveyor belt is rack-shaped, and the tooth marks of the conveyor belt are distributed vertically.

[0019] Each of the material carriers is provided with a clamping plate on its side. The clamping plate has a vertically opening groove and a locking tooth. The clamping plate is clamped to the conveyor belt through the groove and engages with the conveyor belt through the locking tooth. When the slide rail unit drives the material carrier to rise, the clamping plate separates from the conveyor belt.

[0020] As a further improved technical solution, the above-mentioned upper and lower layer return transport device also includes:

[0021] The lifting mechanism is provided in two parts, which are respectively located below the two slide rail units to drive the two slide rail units to move up and down respectively.

[0022] As a further improved technical solution, the snap-fit ​​part is provided with a vertically opened snap-fit ​​groove, and the fastening part is provided with a self-rotating idler wheel, which can slide into the snap-fit ​​groove and snap-fit.

[0023] As a further improved technical solution, the above-mentioned upper and lower layer return transport device also includes:

[0024] The clamping mechanism includes a second cylinder and a clamping block. The second cylinder is disposed below one end of the conveyor belt, and the clamping block is disposed on the second cylinder and clamps both sides of the conveyor belt. The second cylinder is used to control the clamping block to clamp or release the conveyor belt.

[0025] Secondly, embodiments of the present invention provide a detection device, which includes the upper and lower layer return transport device, the radiation emission module and the radiation receiving module as described above; the radiation emission module and the radiation receiving module are respectively disposed on both sides of the upper and lower layer return transport device and are arranged opposite to each other, for detecting the material on the material carrier.

[0026] Compared with the prior art, the embodiments of the present invention have the following advantages:

[0027] This invention provides a multi-level return transport device, comprising: a first slide rail and a second slide rail, the first slide rail and the second slide rail being arranged vertically opposite each other; two slide rail units, the two slide rail units being respectively liftably disposed at both ends of the second slide rail to be spliced ​​with the ends of the first slide rail or the ends of the second slide rail; a material carrier, the material carrier being slidably disposed on the first slide rail and slidable onto the slide rail units and the second slide rail; and a drive assembly, the drive assembly being connected to the material carrier and used to drive the material carrier to slide and return vertically on the first slide rail, the second slide rail and the slide rail units. In this invention, the material carrier can return and slide on the first slide rail and the second slide rail through the vertical lifting of the slide rail units and the cooperation of the drive assembly. The vertically opposite arrangement of the first slide rail and the second slide rail reduces the occupied floor space, allowing more material transport production lines to be installed indoors, thus reducing land costs. Attached Figure Description

[0028] Figure 1 A first three-dimensional structural schematic diagram of an upper and lower layer return transport device provided by the present invention;

[0029] Figure 2 This is a schematic diagram of the first three-dimensional structure of the material carrier in this invention;

[0030] Figure 3 This is a three-dimensional structural diagram of the first driving mechanism in this invention;

[0031] Figure 4 This invention provides a second three-dimensional structural schematic diagram of an upper and lower layer return transport device;

[0032] Figure 5 This is a schematic diagram of the second three-dimensional structure of the material carrier in this invention;

[0033] Figure 6 This is a three-dimensional structural diagram of the clamping mechanism in this invention;

[0034] Figure 7 A third three-dimensional structural diagram of an upper and lower layer return transport device provided by the present invention;

[0035] Figure 8 This is a three-dimensional structural diagram of a detection device provided by the present invention.

[0036] In the diagram: 1. First slide rail; 2. Second slide rail; 3. Slide rail unit; 4. Material carrier; 401. Snap-fit ​​part; 4011. Slot; 402. Fastening part; 4021. Idler wheel; 5. Drive assembly; 501. First drive mechanism; 5011. Screw motor; 5012. First slider; 5013. First cylinder; 5014. Second slider; 5015. Locking block; 502. Second drive mechanism; 5 021. Drive motor; 5022. Conveyor belt; 5023. Driven wheel; 6. Buckle plate; 7. Clamping plate; 701. Clamping groove; 702. Clamping tooth; 8. Lifting mechanism; 9. Clamping mechanism; 901. Second cylinder; 902. Clamping block; 10. Material; 11. First guide rod; 1101. Guide groove; 12. Second guide rod; 1201. Guide wheel; 13. X-ray emitting module; 14. X-ray receiving module. Detailed Implementation

[0037] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0038] Example 1:

[0039] Please see Figures 1-7The upper and lower layer return transport device includes: a first slide rail 1 and a second slide rail 2, the first slide rail 1 and the second slide rail 2 being arranged vertically opposite each other; two slide rail units 3, the two slide rail units 3 being respectively liftably arranged at both ends of the second slide rail 2 to be spliced ​​with the end of the first slide rail 1 or the end of the second slide rail 2; a material carrier 4, the material carrier 4 being slidably arranged on the first slide rail 1 and slidable onto the slide rail units 3 and the second slide rail 2; and a drive assembly 5, the drive assembly 5 being connected to the material carrier 4 and used to drive the material carrier 4 to slide and return vertically on the first slide rail 1, the second slide rail 2 and the slide rail units 3.

[0040] like Figure 1As shown, in this embodiment, the upper and lower layer return transport device includes a first slide rail 1, a second slide rail 2, two slide rail units 3, a material carrier 4, and a drive assembly 5. The first slide rail 1 and the second slide rail 2 are elongated and arranged vertically opposite each other. The first slide rail 1 is positioned above the second slide rail 2. The two slide rail units 3 are respectively located at both ends of the second slide rail 2. Both slide rail units 3 can move up and down. The slide rail units 3 can be spliced ​​with the ends of the first slide rail 1 and the second slide rail 2 to form a complete conveyor line. When the slide rail unit 3 is spliced ​​with the end of the first slide rail 1, the guide rail on the slide rail unit 3 will connect with the guide rail on the first slide rail 1 and form a straight line, allowing the material carrier 4 on the first slide rail 1 to slide onto the slide rail unit 3. When the slide rail unit 3 is spliced ​​with the end of the second slide rail 2, the slide rail unit 3... The guide rail on unit 3 is connected to the guide rail on the second slide rail 2 and arranged in a straight line, so that the material carrier 4 on the second slide rail 2 can slide onto the slide rail unit 3; the material carrier 4 is used to carry material 10, and the material carrier 4 is slidably set on the first slide rail 1. When the slide rail unit 3 is spliced ​​with the first slide rail 1, the material carrier 4 can slide from the first slide rail 1 to the slide rail unit 3. At this time, when the slide rail unit 3 descends to splice with the second slide rail 2, the material carrier 4 on the slide rail unit 3 can slide onto the second slide rail 2; when the material carrier 4 slides to the other end of the second slide rail 2, it can be transported back to the first slide rail 1 through the slide rail unit 3 located at the other end of the second slide rail 2; the drive assembly 5 is connected to the material carrier 4 and is used to drive the material carrier 4 to slide and move up and down on the first slide rail 1, the second slide rail 2 and the slide rail unit 3. In this invention, the material carrier 4 can slide back and forth on the first slide rail 1 and the second slide rail 2 through the up and down lifting of the slide rail unit 3 and the cooperation of the drive assembly 5. The first slide rail 1 and the second slide rail 2 are arranged vertically opposite each other, which reduces the occupied planar space, allowing more material transportation production lines to be installed in the factory, thus reducing land use costs.

[0041] As a further embodiment, multiple material carriers 4 are provided and slidably arranged on the production line composed of the first slide rail 1, the second slide rail 2, and the slide rail unit 3. The drive assembly 5 can drive each of the material carriers 4 to slide and circulate up and down on the production line. Specifically, in this embodiment, multiple material carriers 4 are provided, and the production line composed of the first slide rail 1, the second slide rail 2, and the slide rail unit 3 is filled with the material carriers 4. That is, each time a material carrier 4 slides from one end of the first slide rail 1 to a slide rail unit 3, another slide rail unit 3 will also transport a material carrier 4 to slide to the other end of the first slide rail 1 to supplement it. At this time, the transportation efficiency of the upper and lower layer circulating transport device is maximized.

[0042] like Figure 2 As shown, as a further embodiment, each of the material carriers 4 has a locking part 401 on one side and a fastening part 402 on the other side. Two adjacent material carriers 4 are interlocked via the locking parts 401 and fastening parts 402 on their adjacent sides. Specifically, two adjacent material carriers 4 on the first slide rail 1 and the second slide rail 2 can be interlocked via adjacent locking parts 401 and fastening parts 402. When the slide rail unit 3 moves the material carrier 4 up and down, it can engage or disengage the material carrier 4 with the material carrier 4 at the end of the first slide rail 1 or the material carrier 4 at the end of the second slide rail 2. In this embodiment, the latching part 401 is provided with a vertically opening latching groove 4011, and the fastening part 402 is provided with a self-rotating idler wheel 4021. When the material carrier 4 moves up and down on the slide rail unit 3, the idler wheel 4021 can slide into the adjacent latching groove 4011 and latch, or slide out of the latching groove 4011 to release the latching state. The cooperation between the idler wheel 4021 and the latching groove 4011 can reduce resistance. By latching each material carrier 4 to each other, the number of power sources of the drive assembly 5 can be reduced. For example, the material carrier 4 located on the upper layer and the material carrier 4 located on the lower layer can be driven by only one power source.

[0043] In this embodiment, the drive assembly 5 includes a first drive mechanism 501 and a second drive mechanism 502; the first drive mechanism 501 is disposed on the side of the first slide rail 1 and connected to the upper material carrier 4 to drive the upper material carrier 4 to slide; the second drive mechanism 502 is disposed on the side of the second slide rail 2 and connected to each of the lower material carriers 4 to drive each of the lower material carriers 4 to slide. Specifically, when the slide rail unit 3 rises to dock with the first slide rail 1, the material carrier 4 on the slide rail unit 3 will engage with the material carrier 4 at the end of the first slide rail 1. At this time, when the first drive mechanism 501 drives the material carrier 4 on the first slide rail 1 to move, it will cause the material carrier 4 on the slide rail unit 3 to slide onto the first slide rail 1. When the slide rail unit 3 falls to dock with the second slide rail 2, the material carrier 4 on the slide rail unit 3 will engage with the material carrier 4 at the end of the second slide rail 2. At this time, when the second drive mechanism 502 drives the material carrier 4 on the second slide rail 2 to move, it will cause the material carrier 4 on the slide rail unit 3 to slide onto the first slide rail 1.

[0044] like Figure 3As shown, as a further embodiment, the first driving mechanism 501 includes a lead screw motor 5011, a first slider 5012, a first cylinder 5013, a second slider 5014, and a locking block 5015. The lead screw motor 5011 is located near the side of the first slide rail 1. The first slider 5012 is mounted on the lead screw motor 5011 and can be driven by the lead screw motor 5011 to slide along the length direction of the first slide rail 1. The second slider 5014 is slidably mounted on the first slider 5012. The first cylinder 5013 is mounted on the first slider 5012 and connected to the second slider 5014 to drive the second slider 5014 to slide toward the side of the first slide rail 1. The locking block 5015 is located at one end of the second slider 5014 near the first slide rail 1. Each of the material carriers 4 has a buckle plate 6 on its side. The first cylinder 5013 is used to drive the locking block 5015 at the end of the second slider 5014 to engage with the buckle plate 6. In this embodiment, the lead screw motor 5011 is fixed to the side of the first slide rail 1. When the first drive mechanism 501 drives the material carrier 4 on the first slide rail 1, the first cylinder 5013 first drives the second slider 5014 and the locking block 5015 to move toward the material carrier 4. After the locking block 5015 is embedded in the buckle plate 6, the lead screw motor 5011 then drives the first slider 5012 to move along the length direction of the first slide rail 1, causing the material carrier 4 to slide. After the material carrier 4 has slid one body position, the first cylinder 5013 drives the second slider 5014 and the locking block 5015 to retract, so that the locking block 5015 is separated from the material carrier 4. At this time, the lead screw motor 5011 then drives the first slider 5012 to return to its original position and connect with the next material carrier 4, driving the next material carrier 4 to move. When the material 10 on the material carrier 4 needs to be X-rayed, the first drive mechanism 501 in this embodiment is very suitable for driving the upper material carrier 4. During the time the material is being inspected, the first slider 5012 can be returned to its original position. Moreover, the first drive mechanism 501 in this embodiment does not need to occupy much space. It only needs to make the stroke of the first slider 5012 on the lead screw motor 5011 slightly greater than the length of the material carrier 4 by one body length. Therefore, the length of the lead screw motor 5011 does not need to be very long, saving space.

[0045] like Figure 4 and Figure 5As shown, as a further embodiment, the second drive mechanism 502 includes a drive motor 5021, a conveyor belt 5022, and a driven wheel 5023. The drive motor 5021 and the driven wheel 5023 are respectively located near the two slide rail units 3. The two ends of the conveyor belt 5022 are respectively sleeved on the drive motor 5021 and the driven wheel 5023, and are driven to rotate by the drive motor 5021. One side of the conveyor belt 5022 is rack-shaped, and the... The tooth marks of the conveyor belt 5022 are distributed vertically; each of the material carriers 4 is provided with a clamping plate 7 on its side, and the clamping plate 7 is provided with a vertically opened clamping groove 701. The clamping groove 701 is provided with a locking tooth 702. The clamping plate 7 is clamped on the conveyor belt 5022 through the clamping groove 701 and engages with the conveyor belt 5022 through the locking tooth 702. When the slide rail unit 3 drives the material carrier 4 to rise, the clamping plate 7 separates from the conveyor belt 5022. Specifically, in this embodiment, the lower material carriers 4 are all driven by the engagement of the clamping plate 7 with the conveyor belt 5022. When the slide rail unit 3 lowers the material carrier 4, the clamping groove 701 of the clamping plate 7 on the side of the material carrier 4 is aligned with the conveyor belt 5022. When the slide rail unit 3 lowers to be spliced ​​with the second slide rail 2, the clamping plate 7 is clamped on the conveyor belt 5022 through the clamping groove 701, and engages with the vertical tooth marks of the conveyor belt 5022 through the vertical teeth 702. At this time, when the conveyor belt 5022 moves, it will drive each lower material carrier 4 to move.

[0046] In this embodiment, the upper and lower layer return transport device further includes two lifting mechanisms 8, which are respectively located below the two slide rail units 3 to drive the two slide rail units 3 to move up and down. The lifting mechanism 8 is an existing electric cylinder lifting device or a pneumatic cylinder lifting device, and the slide rail unit 3 is placed on the lifting platform (not shown) of the lifting mechanism 8.

[0047] like Figure 6As shown, as a further embodiment, the upper and lower layer return conveying device also includes a clamping mechanism 9. The clamping mechanism 9 includes a second cylinder 901 and a clamping block 902. The second cylinder 901 is located below one end of the conveyor belt 5022, and the clamping block 902 is located on the second cylinder 901 and clamps both sides of the conveyor belt 5022. The second cylinder 901 is used to control the clamping block 902 to clamp or release the conveyor belt 5022. Specifically, whenever the material carrier 4 moves down and its clamping plate 7 engages with the conveyor belt 5022, the second cylinder 901 controls the clamping block 902 to clamp the conveyor belt 5022, making the conveyor belt 5022 taut and straight, so that the clamping plate 7 can be clamped on the conveyor belt 5022. When the clamping plate 7 and the conveyor belt 5022 have completed engagement, the second cylinder 901 controls the clamping block 902 to release the conveyor belt 5022, at which time the conveyor belt 5022 can move.

[0048] like Figure 7 As shown, as a further embodiment, the upper and lower layer return transport device also includes a first guide rod 11 and a second guide rod 12. The first guide rod and the second guide rod 12 are respectively located at opposite ends of the two slide rail units 3. The first guide rod is provided with a guide groove 1101. When the material carrier 4 slides onto the slide rail unit 3, the fastening part 402 on the side of the material carrier 4 aligns with the guide groove 1101. When the slide rail unit 3 moves up and down, the fastening part 402 on the side of the material carrier 4 on the slide rail unit 3... The connecting part 402 will slide within the guide groove 1101; the second guide rod is provided with a guide wheel 1201. When the material carrier 4 slides onto the slide rail unit 3, the snap-fit ​​part 401 on the side of the material carrier 4 is aligned with the guide wheel 1201. When the slide rail unit 3 moves up and down, the snap-fit ​​part 401 on the side of the material carrier 4 on the slide rail unit 3 will slide vertically along the guide wheel 1201; the first guide rod 11 and the second guide rod 12 guide the movement of the slide rail unit 3.

[0049] Example 2:

[0050] like Figure 8 As shown, this embodiment of the invention also provides a detection device, which includes an upper and lower layer return transport device, a radiation emission module 13 and a radiation receiving module 14 as described in any of the above embodiments; the radiation emission module 13 and the radiation receiving module 14 are respectively disposed on both sides of the upper and lower layer return transport device and are arranged opposite to each other, for detecting the material on the material carrier 4.

[0051] In summary, this invention provides a layer-by-layer return transport device, comprising: a first slide rail 1 and a second slide rail 2, the first slide rail 1 and the second slide rail 2 being arranged vertically opposite each other; two slide rail units 3, the two slide rail units 3 being respectively liftably arranged at both ends of the second slide rail 2 to be spliced ​​with the ends of the first slide rail 1 or the ends of the second slide rail 2; a material carrier 4, the material carrier 4 being slidably arranged on the first slide rail 1 and slidably onto the slide rail units 3 and the second slide rail 2; and a drive assembly 5, the drive assembly 5 being connected to the material carrier 4 and used to drive the material carrier 4 to slide and return vertically on the first slide rail 1, the second slide rail 2 and the slide rail units 3. In this invention, the material carrier 4 can return and slide on the first slide rail 1 and the second slide rail 2 through the vertical lifting of the slide rail units 3 and the cooperation of the drive assembly 5. The vertically opposite arrangement of the first slide rail 1 and the second slide rail 2 reduces the occupied planar space, allowing more material transport production lines to be installed in the factory, thus reducing land costs.

[0052] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention 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, they should not be construed as limitations on this invention.

[0053] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0054] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0055] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0056] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0057] Of course, the above description of the embodiments of the present invention is quite detailed, but it should not be construed as a limitation on the scope of protection of the present invention. The present invention may have many other implementations. Based on this implementation, other implementations obtained by those skilled in the art without any creative effort are all within the scope of protection of the present invention. The scope of protection of the present invention is determined by the appended claims.

Claims

1. A top-to-bottom reflux conveying device, characterized in that, include: The first slide rail and the second slide rail are arranged vertically opposite each other. Two slide rail units are respectively installed at both ends of the second slide rail in a liftable manner to be spliced ​​with the end of the first slide rail or the end of the second slide rail. The material carrier is slidably mounted on the first slide rail and can slide onto the slide rail unit and the second slide rail; each material carrier has a snap-fit ​​part on one side and a fastening part on the other side, and each pair of adjacent material carriers are snapped together by the snap-fit ​​parts and fastening parts on their adjacent sides; A first guide rod and a second guide rod are located at opposite ends of the two slide rail units. The first guide rod has a guide groove. When the material carrier slides onto the slide rail unit, the fastening part on the side of the material carrier aligns with the guide groove. When the slide rail unit moves up and down, the fastening part on the side of the material carrier on the slide rail unit slides within the guide groove. The second guide rod has a guide wheel. When the material carrier slides onto the slide rail unit, the locking part on the side of the material carrier aligns with the guide wheel. When the slide rail unit moves up and down, the locking part on the side of the material carrier on the slide rail unit slides vertically along the guide wheel. A drive assembly is connected to the material carrier and is used to drive the material carrier to slide and move up and down on the first slide rail, the second slide rail and the slide rail unit; The drive assembly includes a first drive mechanism and a second drive mechanism; The first drive mechanism is disposed on the side of the first slide rail and connected to the upper material carrier to drive the upper material carrier to slide. The second drive mechanism is disposed on the side of the second slide rail and connected to each of the material carriers in the lower layer to drive each of the material carriers in the lower layer to slide. The second driving mechanism includes a drive motor, a conveyor belt, and a driven wheel. The drive motor and the driven wheel are respectively close to the two slide rail units. The two ends of the conveyor belt are respectively sleeved on the drive motor and the driven wheel, and are driven to run by the drive motor. One side of the conveyor belt is rack-shaped, and the tooth marks of the conveyor belt are distributed vertically. Each of the material carriers is provided with a clamping plate on its side. The clamping plate has a vertically opening groove and a locking tooth. The clamping plate is clamped to the conveyor belt through the groove and engages with the conveyor belt through the locking tooth. When the slide rail unit drives the material carrier to rise, the clamping plate separates from the conveyor belt.

2. The upper and lower layer return transport device according to claim 1, characterized in that, The material carriers are provided in multiple ways and are respectively slidably arranged on the production line composed of the first slide rail, the second slide rail and the slide rail unit. The drive assembly can drive each of the material carriers to slide and flow back and forth on the production line.

3. The upper and lower layer return transport device according to claim 1, characterized in that, The first driving mechanism includes a lead screw motor, a first slider, a first cylinder, a second slider, and a locking block; the lead screw motor is located near the side of the first slide rail, the first slider is mounted on the lead screw motor and can be driven by the lead screw motor to slide along the length direction of the first slide rail, the second slider is slidably mounted on the first slider, the first cylinder is mounted on the first slider and connected to the second slider to drive the second slider to slide toward the side of the first slide rail, and the locking block is located at one end of the second slider near the first slide rail; Each of the material carriers is provided with a buckle plate on its side, and the first cylinder is used to drive the locking block at the end of the second slider to engage with the buckle plate.

4. The upper and lower layer return transport device according to claim 1, characterized in that, Also includes: The lifting mechanism is provided in two parts, which are respectively located below the two slide rail units to drive the two slide rail units to move up and down respectively.

5. The upper and lower layer return transport device according to claim 1, characterized in that, The latching part is provided with a vertically opening latching groove, and the fastening part is provided with a self-rotating idler wheel, which can slide into the latching groove and latch.

6. The upper and lower layer return transport device according to claim 1, characterized in that, Also includes: The clamping mechanism includes a second cylinder and a clamping block. The second cylinder is disposed below one end of the conveyor belt, and the clamping block is disposed on the second cylinder and clamps both sides of the conveyor belt. The second cylinder is used to control the clamping block to clamp or release the conveyor belt.

7. A testing device, characterized in that, It includes an upper and lower layer return transport device, a radiation emission module, and a radiation receiving module as described in any one of claims 1-6; the radiation emission module and the radiation receiving module are respectively disposed on both sides of the upper and lower layer return transport device and are arranged opposite to each other, for detecting the material on the material carrier.

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