Online quality detection system for intermodal trays

Abstract

The invention relates to the technical field of tray quality detection, in particular to an online quality detection system for intermodal trays. The intermodal tray online quality detection system comprises a tray, a bottom plate deformation detection assembly, an appearance detection device and a conveyor assembly, and the bottom plate deformation detection assembly comprises a plurality of jack size detection devices or a plurality of load deformation overrun detection devices or a combination of the jack size detection devices and the load deformation overrun detection devices. The bottom plate deformation detection assembly and the appearance detection device are both installed on the conveyor assembly, the tray is placed on the conveyor assembly, and the jack size detection device, the load deformation overrun detection device and the appearance detection device are used in cooperation to conduct quality detection on the tray. According to the on-line quality detection system for the combined transportation tray, the tray is automatically detected on line under the actual stress working condition of the tray, and the material and the form of the tray are not limited.

Description

Technical Field

[0001] The present invention relates to the technical field of pallet quality detection, and in particular to an online quality detection system for intermodal pallets. Background Art

[0002] The purpose of shared pallets is to achieve efficient logistics and effective resource circulation. In a certain circulation area, a network and operation system that guarantees the circulation and sharing of pallets is established. It has the advantages of efficient resource sharing, optimized operating costs, standardized supply chain, and environmental sustainability. The application of shared pallet intermodal transport in the automated logistics industry usually uses shared pallets to circulate in the upstream and downstream supply warehouse logistics systems. The logistics system usually uses pallet conveyor lines to complete the receipt and circulation of pallet materials. Intermodal pallets may be damaged during upstream use and transportation. The quality inspection of intermodal pallets is particularly important when receiving them in the downstream logistics system. If intermodal pallets have quality problems and do not meet the use requirements of the downstream logistics system, it may cause equipment failure or material damage risks during the receipt, transportation, and storage of the downstream logistics system. At present, pallet quality inspection is usually carried out manually according to standard sampling, which is difficult to implement, and only some pallets can be inspected. The inspection conclusion is not universal and representative.

[0003] The Chinese invention patent with publication number CN109047023A discloses a pallet wood quality rapid detection device, including a vertical board, a bracket fixedly mounted on the lower surface of the vertical board, a horizontal board fixedly mounted on the lower side of the front surface of the vertical board, a slide groove transversely provided on the front surface of the horizontal board, a slider slidably mounted on the inner side of the slide groove, a through hole provided on the lower surface of the slider, a column passing through the top of the through hole, and the column is located in front of the horizontal board and the bracket, and a baffle is fixedly sleeved on the outer wall of the column. The pallet wood quality rapid detection device can realize the quality detection of the pallet through the coordinated use of a marking pen, a column and a spring.

[0004] The above-mentioned rapid pallet wood quality detection device uses vertical boards, brackets, horizontal boards, sliders and other devices to realize quality detection of pallets. However, due to the variety of pallets, the above-mentioned rapid pallet wood quality detection device can only realize quality detection of a single pallet, which has certain limitations. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide an online quality inspection system for intermodal pallets, which can automatically inspect the pallets online under the actual stress conditions of the pallets, and is not limited to the material and form of the pallets.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] An online quality inspection system for an intermodal pallet comprises a pallet, a bottom plate deformation inspection component, an appearance inspection device and a conveyor component, wherein the bottom plate deformation inspection component comprises a plurality of jack size inspection devices or a plurality of load deformation over-limit inspection devices or a combination of a plurality of jack size inspection devices and load deformation over-limit inspection devices, the bottom plate deformation inspection component and the appearance inspection device are both installed on the conveyor component, the pallet is placed on the conveyor component, and the jack size inspection device, the load deformation over-limit inspection device and the appearance inspection device are used in combination to perform quality inspection on the pallet.

[0008] Furthermore, the conveyor assembly includes a chain conveyor and a lifting conveyor, the chain conveyor includes a first chain conveyor and a second chain conveyor, the lifting conveyor is located between the first chain conveyor and the second chain conveyor, the output end of the first chain conveyor is connected to the input end of the lifting conveyor, the output end of the lifting conveyor is connected to the input end of the second chain conveyor, the first chain conveyor and the second chain conveyor are vertically arranged, and the first chain conveyor and the second chain conveyor are double-row chain conveyors or triple-row chain conveyors.

[0009] Furthermore, the socket size detection device is installed on a three-row chain conveyor, the load deformation overlimit detection device is installed on a double-row chain conveyor, and the appearance detection device is installed on a double-row chain conveyor or a three-row chain conveyor.

[0010] Further, the socket size detection device includes a first detection plate, a first mounting plate, a first rotating shaft, a first spring, a first photoelectric switch and a first supporting plate, the number of the first detection plates is two, the first detection plates are arranged corresponding to the three-row chain conveyor, the first detection plate is fixedly connected to the first rotating shaft, the first rotating shaft is installed on the first mounting plate, one end of the first spring is fixedly connected to the first detection plate, the other end of the first spring is fixedly connected to the first mounting plate, the first photoelectric switch is installed on the first supporting plate, the first support plate is installed on the three-row chain conveyor, the first detection plate is located above the first photoelectric switch, the first detection plate has a first contact portion extending outward corresponding to the first photoelectric switch, the first contact portion can press the first photoelectric switch to retract inward, and the outer contour and height of the first detection plate are consistent with the contour and height of the socket of the deformation threshold when the pallet is loaded.

[0011] Furthermore, the load deformation over-limit detection device includes a second detection plate, a second mounting plate, a second rotating shaft, a second spring, a second photoelectric switch and a second support plate, the second detection plate is fixedly connected to the second rotating shaft, the second rotating shaft is mounted on the second mounting plate, one end of the second spring is fixedly connected to the second detection plate, the other end of the second spring is fixedly connected to the second mounting plate, the second photoelectric switch is mounted on the second support plate, the second support plate is mounted on the double-row chain conveyor, the second detection plate is located above the second photoelectric switch, the second detection plate has a second contact portion extending outward corresponding to the second photoelectric switch, the second contact portion can press the second photoelectric switch to retract inward, and the outer contour and height of the second detection plate are consistent with the bottom plate contour and height of the deformation threshold when the pallet is loaded.

[0012] Furthermore, the appearance inspection device includes a CCD camera and a lifting and rotating table. The CCD camera is installed on both sides of the chain conveyor, and the lifting and rotating table is arranged corresponding to the chain conveyor.

[0013] Furthermore, a controller is included, and the jack size detection device, the load deformation over-limit detection device and the appearance detection device are all electrically connected to the controller.

[0014] Furthermore, the bottom plate deformation detection assembly includes two socket size detection devices.

[0015] Furthermore, the bottom plate deformation detection assembly includes two load deformation over-limit detection devices.

[0016] Furthermore, the bottom plate deformation detection assembly includes a socket size detection device and a load deformation over-limit detection device.

[0017] Beneficial effects of the invention: The invention discloses an online quality inspection system for intermodal pallets, which includes a pallet, a bottom plate deformation inspection component, an appearance inspection device and a conveyor component. The bottom plate deformation inspection component includes a plurality of jack size inspection devices or a plurality of load deformation over-limit inspection devices or a combination of a plurality of jack size inspection devices and load deformation over-limit inspection devices. The bottom plate deformation inspection component and the appearance inspection device are both installed on the conveyor component. The pallet is placed on the conveyor component. The jack size inspection device, the load deformation over-limit inspection device and the appearance inspection device are used in conjunction to inspect the quality of the pallet. The bottom plate deformation inspection component is used to inspect the deformation of the bottom plate of the pallet, wherein the jack size inspection device is used to inspect the over-limit size of the jack of the pallet under load and the flatness of the bottom of the pallet, the load deformation over-limit inspection device is used to inspect the over-limit load deformation of the pallet under load and the flatness of the bottom of the pallet, and the appearance inspection device is used to inspect the appearance, pier feet, pallet nails, etc. of the pallet. The conveyor component is used to install the bottom plate deformation inspection component and the appearance inspection device for the pallet to be transported and inspected on the conveyor component. The online quality inspection system for intermodal pallets of the present application can automatically inspect pallets online under actual stress conditions of the pallets, and is not limited to the material and form of the pallets. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 It is a structural schematic diagram of the jack size detection device and the three-row chain conveyor of the present invention;

[0020] Figure 3 is a side view of the jack size detection device of the present invention;

[0021] Figure 4 It is a structural schematic diagram of a load deformation over-limit detection device and a double-row chain conveyor of the present invention;

[0022] Figure 5 It is a schematic structural diagram of the appearance inspection device of the present invention.

[0023] Explanation of the accompanying drawings: 1-tray, 2-jack size detection device, 21-first detection plate, 22-first mounting plate, 23-first rotating shaft, 24-first spring, 25-first photoelectric switch, 26-first supporting plate, 27-first contact part, 3-load deformation over-limit detection device, 31-second detection plate, 32-second mounting plate, 33-second rotating shaft, 34-second spring, 35-second photoelectric switch, 36-second supporting plate, 4-appearance detection device, 41-CCD camera, 42-lifting rotary table, 5-first chain conveyor, 6-second chain conveyor, 7-lifting conveyor. DETAILED DESCRIPTION

[0024] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0025] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0026] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0027] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", etc. Such spatial relative terms include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is turned over, the element described as "below other elements or features" or "below other elements or features" will then be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include both upper and lower orientations. The device can be oriented otherwise (rotated 90 degrees or in other directions) and the spatial relative descriptors used in the text are interpreted accordingly.

[0028] Embodiment 1:

[0029] like Figure 1-Figure 5As shown, the present embodiment provides an online quality inspection system for an intermodal pallet, which includes a pallet 1, a bottom plate deformation detection component, an appearance inspection device 4 and a conveyor component, wherein the bottom plate deformation detection component includes a plurality of socket size detection devices 2 or a plurality of load deformation over-limit detection devices 3 or a combination of a plurality of socket size detection devices 2 and a load deformation over-limit detection device 3, the bottom plate deformation detection component and the appearance inspection device 4 are both installed on the conveyor component, the pallet 1 is placed on the conveyor component, and the socket size detection device 2, the load deformation over-limit detection device 3 and the appearance inspection device 4 are used in combination to perform quality inspection on the pallet 1. In actual use, the bottom plate deformation detection component is used to detect the deformation of the bottom plate of the pallet 1, wherein the socket size detection device 2 is used to detect the over-limit size of the socket of the pallet 1 under load and the flatness of the bottom of the pallet 1, the load deformation over-limit detection device 3 is used to detect the over-limit load deformation of the pallet 1 and the flatness of the bottom of the pallet 1 under load, the appearance detection device 4 is used to detect the appearance, pier feet, and nails of the pallet 1, and the conveyor component is used to install the bottom plate deformation detection component and the appearance detection device 4 for the pallet 1 to be transported and inspected on the conveyor component. The types of pallets 1 are various and can be selected according to different pallets 1. Select the corresponding bottom plate deformation detection component, for example, if the nine-grid pallet is used, two socket size detection devices 2 are required, if the field bottom pallet is used, two load deformation over-limit detection devices 3 are required, and if the Sichuan bottom pallet is used, one socket size detection device 2 and one load deformation over-limit detection device 3 are required. The pallet 1 under conveying conditions and fork-picking conditions, pallet flatness, appearance inspection, pad (wooden pier) loss or breakage, deformation detection under load, deformation detection of various components of the pallet 1 under load, pallet socket size, pallet nails, etc. can be automatically inspected, and the quality inspection of the pallet 1 can be carried out without limiting the material and form of the pallet 1.

[0030] In this embodiment, the conveyor assembly includes a chain conveyor and a lifting conveyor 7, the chain conveyor includes a first chain conveyor 5 and a second chain conveyor 6, the lifting conveyor 7 is located between the first chain conveyor 5 and the second chain conveyor 6, the output end of the first chain conveyor 5 is connected to the input end of the lifting conveyor 7, the output end of the lifting conveyor 7 is connected to the input end of the second chain conveyor 6, the first chain conveyor 5 and the second chain conveyor 6 are vertically arranged, and the first chain conveyor 5 and the second chain conveyor 6 are double-row chain conveyors or triple-row chain conveyors. In actual use, when the pallet 1 is undergoing quality inspection, at least three inspection procedures need to be carried out. Inspection position one is located on the first chain conveyor 5, inspection position two is located on the second chain conveyor 6, and inspection position three is where the appearance inspection device 4 is located, which is located on the second chain conveyor 6. The lifting conveyor 7 is used to change the angle of the pallet 1, where the angle is 90°, to make the inspection of the pallet 1 more comprehensive. The pallet 1 needs to pass through inspection position one, and then change its orientation angle through the lifting conveyor 7, then pass through inspection position two, and finally pass through inspection position three. The pallet 1 that fails the final inspection will be removed by the worker, and the pallet 1 that passes the inspection can enter the subsequent pallet 1 transfer procedure.

[0031] In this embodiment, the socket size detection device 2 is installed on a three-row chain conveyor, the load deformation over-limit detection device 3 is installed on a double-row chain conveyor, and the appearance detection device 4 is installed on a double-row chain conveyor or a three-row chain conveyor. In actual use, based on the shape of the pallet 1, the socket size detection device 2 and the load deformation over-limit detection device 3 may be used. Some pallets 1 can only be transported by a three-row chain conveyor (chuan-shaped bottom pallets, nine-square pallets), and the corresponding three-row chain conveyor needs to use a socket size detection device 2 that can be installed on the three-row chain conveyor. Similarly, some pallets only need to be transported by a double-row chain conveyor (field-shaped bottom pallets).

[0032] In this embodiment, the socket size detection device 2 includes a first detection plate 21, a first mounting plate 22, a first rotating shaft 23, a first spring 24, a first photoelectric switch 25 and a first supporting plate 26. The number of the first detection plates 21 is two, and the first detection plates 21 are arranged corresponding to the three-row chain conveyor. The first detection plate 21 is fixedly connected to the first rotating shaft 23, and the first rotating shaft 23 is installed on the first mounting plate 22. One end of the first spring 24 is fixedly connected to the first detection plate 21, and the other end of the first spring 24 is fixedly connected to the first mounting plate 22. The first photoelectric switch 25 is installed on the first supporting plate 26, and the first supporting plate 26 is installed on the three-row chain conveyor. The first detection plate 21 is located above the first photoelectric switch 25. The first detection plate 21 has a first contact portion 27 extending outward corresponding to the first photoelectric switch 25, and the first contact portion 27 can press the first photoelectric switch 25 to shrink inward. The outer contour and height of the first detection plate 21 are consistent with the socket contour and height of the deformation threshold value when the tray 1 is loaded. In actual use, if the pier and the bottom of the socket of the tray 1 are within the allowable deformation after being loaded, the tray 1 can smoothly pass through the first detection plate 21 for subsequent detection. If the pier and the bottom of the socket of the tray 1 exceed the allowable deformation after being loaded, the socket of the tray 1 will contact the first detection plate 21, and drive the first detection plate 21 to rotate with the first shaft 23 to contact the first photoelectric switch 25, and trigger the photoelectric switch signal. After the tray 1 passes, the first spring 24 rotates the first shaft 23 to restore the position of the first detection plate 21 under the action of elastic potential energy, and the tray 1 fails the detection.

[0033] In this embodiment, the load deformation over-limit detection device 3 includes a second detection plate 31, a second mounting plate 32, a second rotating shaft 33, a second spring 34, a second photoelectric switch 35 and a second support plate 36. The second detection plate 31 is fixedly connected to the second rotating shaft 33, and the second rotating shaft 33 is installed on the second mounting plate 32. One end of the second spring 34 is fixedly connected to the second detection plate 31, and the other end of the second spring 34 is fixedly connected to the second mounting plate 32. The second photoelectric switch 35 is installed on the second support plate 36, and the second support plate 36 is installed on the double-row chain conveyor. The second detection plate 31 is located above the second photoelectric switch 35. The second detection plate 31 has a second contact portion extending outward corresponding to the second photoelectric switch 35, and the second contact portion can press the second photoelectric switch 35 to retract inward. The outer contour and height of the second detection plate 31 are consistent with the bottom plate contour and height of the deformation threshold value of the pallet 1 when loaded. In actual use, if the deformation of the bottom plate of tray 1 after loading is within the allowable deformation range, the bottom plate of tray 1 can smoothly pass through the second detection plate 31 and enter subsequent detection; if the deformation of the bottom plate of tray 1 after loading exceeds the allowable deformation range, the bottom plate of tray 1 will contact the second detection plate 31, and drive the second detection plate 31 to rotate along with the second rotating shaft 33 to contact the second photoelectric switch 35, and trigger the photoelectric switch signal. After tray 1 passes, the second spring 34 rotates the second rotating shaft 33 to restore the position of the second detection plate 31 under the action of elastic potential energy, and tray 1 fails the detection.

[0034] In this embodiment, the appearance inspection device 4 includes a CCD camera 41 and a lifting and rotating table 42. The CCD camera 41 is installed on both sides of the chain conveyor, and the lifting and rotating table 42 is set corresponding to the chain conveyor. In actual use, the lifting and rotating table 42 can lift and rotate the pallet 1 90°. Before and after the pallet 1 rotates 90° after lifting, the CCD camera 41 performs 8 visual inspections on the 4 surfaces of the pallet 1, and visually inspects and judges the deformation of the pallet 1 after lifting, the flatness of the upper surface, the appearance, the pier foot fracture, etc. After the inspection is completed, the lifting and rotating table 42 is reset and descended, and the pallet 1 is dropped back onto the chain conveyor. If the inspection is qualified, it will enter the subsequent process. If the inspection is unqualified, it will be manually taken offline.

[0035] In this embodiment, a controller is included, and the jack size detection device 2, the load deformation over-limit detection device 3 and the appearance detection device 4 are all electrically connected to the controller. In actual use, the controller is used to control the connected devices and receive the photoelectric switch signal and transmit it to the background terminal.

[0036] Embodiment 2:

[0037] like Figure 1-Figure 5As shown, on the basis of the first embodiment, the bottom plate deformation detection assembly includes two socket size detection devices 2. In actual use, when the pallet 1 is a nine-grid pallet, combined with the shape of the pallet, to complete the quality inspection of the nine-grid pallet, only the socket size detection device 2 can be used for quality inspection. The first socket size detection device 2 is placed at the inspection position 1, and the second socket size detection device 2 is placed at the inspection position 2. The lifting conveyor 7 is turned to realize the comprehensive inspection of the nine-grid pallet.

[0038] In this embodiment, the bottom plate deformation detection assembly includes two load deformation over-limit detection devices 3. In actual use, when the pallet 1 is a 'T' bottom pallet, combined with the shape of the pallet 1, to complete the quality inspection of the 'T' bottom pallet, only the load deformation over-limit detection device 3 can be used, the first load deformation over-limit detection device 3 is placed at the inspection position 1, and the second load deformation over-limit detection device 3 is placed at the inspection position 2, and the lifting conveyor 7 is turned to achieve a comprehensive inspection of the 'T' bottom pallet.

[0039] In this embodiment, the bottom plate deformation detection assembly includes a socket size detection device 2 and a load deformation over-limit detection device 3. In actual use, when the pallet 1 is a spherical bottom pallet, the socket size detection device 2 is selected at the detection position 1, and the spherical bottom pallet is placed on the chain conveyor toward the spherical bottom direction, and the load deformation over-limit detection device 3 is selected at the detection position 2, and the spherical bottom pallet is placed on the chain conveyor perpendicular to the spherical bottom direction, so as to realize comprehensive detection of the spherical bottom pallet.

[0040] All technical features in this embodiment can be freely combined according to actual needs. The above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be covered by the scope of the claims of the present invention. The technology, shape, and structural parts not described in detail in the present invention are all well-known technologies.

[0041] The above embodiments are preferred implementation schemes of the present invention. In addition, other implementation schemes are also included. Any obvious replacement without departing from the concept of the present technical scheme is within the protection scope of the present invention.

Claims

1. An online quality inspection system for intermodal pallets, characterized by: The invention comprises a pallet (1), a bottom plate deformation detection assembly, an appearance detection device (4) and a conveyor assembly, wherein the bottom plate deformation detection assembly comprises a plurality of jack size detection devices (2) or a plurality of load deformation over-limit detection devices (3) or a combination of a plurality of jack size detection devices (2) and a load deformation over-limit detection device (3), the bottom plate deformation detection assembly and the appearance detection device (4) are both installed on the conveyor assembly, the pallet (1) is placed on the conveyor assembly, and the jack size detection device (2), the load deformation over-limit detection device (3) and the appearance detection device (4) are used in combination to perform quality inspection on the pallet (1).

2. The online quality inspection system for intermodal pallets according to claim 1, characterized in that: The conveyor assembly comprises a chain conveyor and a lifting conveyor (7), wherein the chain conveyor comprises a first chain conveyor (5) and a second chain conveyor (6), wherein the lifting conveyor (7) is located between the first chain conveyor (5) and the second chain conveyor (6), wherein the output end of the first chain conveyor (5) is connected to the input end of the lifting conveyor (7), wherein the output end of the lifting conveyor (7) is connected to the input end of the second chain conveyor (6), wherein the first chain conveyor (5) and the second chain conveyor (6) are arranged vertically, and wherein the first chain conveyor (5) and the second chain conveyor (6) are double-row chain conveyors or triple-row chain conveyors.

3. The online quality inspection system for intermodal pallets according to claim 2, characterized in that: The socket size detection device (2) is installed on a three-row chain conveyor, the load deformation overlimit detection device (3) is installed on a double-row chain conveyor, and the appearance detection device (4) is installed on a double-row chain conveyor or a three-row chain conveyor.

4. The online quality inspection system for intermodal pallets according to claim 2, characterized in that: The socket size detection device (2) comprises a first detection plate (21), a first mounting plate (22), a first rotating shaft (23), a first spring (24), a first photoelectric switch (25) and a first supporting plate (26); the number of the first detection plates (21) is two; the first detection plates (21) are arranged corresponding to the three-row chain conveyor; the first detection plate (21) and the first rotating shaft (23) are fixedly connected; the first rotating shaft (23) is mounted on the first mounting plate (22); one end of the first spring (24) is fixedly connected to the first detection plate (21); The other end is fixedly connected to the first mounting plate (22); the first photoelectric switch (25) is mounted on the first support plate (26); the first support plate (26) is mounted on the three-row chain conveyor; the first detection plate (21) is located above the first photoelectric switch (25); the first detection plate (21) has a first contact portion (27) extending outwardly corresponding to the first photoelectric switch (25); the first contact portion (27) can press the first photoelectric switch (25) to retract inwardly; the outer contour and height of the first detection plate (21) are consistent with the contour and height of the jack of the deformation threshold value when the pallet (1) is loaded.

5. The online quality inspection system for intermodal pallets according to claim 2, characterized in that: The load deformation overlimit detection device (3) comprises a second detection plate (31), a second mounting plate (32), a second rotating shaft (33), a second spring (34), a second photoelectric switch (35) and a second support plate (36); the second detection plate (31) and the second rotating shaft (33) are fixedly connected; the second rotating shaft (33) is mounted on the second mounting plate (32); one end of the second spring (34) is fixedly connected to the second detection plate (31); the other end of the second spring (34) is fixedly connected to the second mounting plate (32); the second photoelectric switch (35) is mounted on the second support plate (36); the second support plate (36) is mounted on a double-row chain conveyor; the second detection plate (31) is located above the second photoelectric switch (35); the second detection plate (31) has a second contact portion extending outwardly corresponding to the second photoelectric switch (35); the second contact portion can press the second photoelectric switch (35) to retract inwardly; the outer contour and height of the second detection plate (31) are consistent with the bottom plate contour and height of the deformation threshold value of the pallet (1) when loaded.

6. The online quality inspection system for intermodal pallets according to claim 1, characterized in that: The appearance detection device (4) comprises a CCD camera (41) and a lifting and rotating platform (42); the CCD camera (41) is installed on both sides of the chain conveyor, and the lifting and rotating platform (42) is arranged corresponding to the chain conveyor.

7. The online quality inspection system for intermodal pallets according to claim 1, characterized in that: It comprises a controller, and the jack size detection device (2), the load deformation over-limit detection device (3) and the appearance detection device (4) are all electrically connected to the controller.

8. The online quality inspection system for intermodal pallets according to claim 1, characterized in that: The bottom plate deformation detection component comprises two socket size detection devices (2).

9. The online quality inspection system for intermodal pallets according to claim 1, characterized in that: The bottom plate deformation detection assembly comprises two load deformation over-limit detection devices (3).

10. The online quality inspection system for intermodal pallets according to claim 1, characterized in that: The bottom plate deformation detection component comprises a socket size detection device (2) and a load deformation over-limit detection device (3).

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