Charging tray feeding and discharging device and production equipment

Abstract

The invention belongs to the technical field of feeding and discharging equipment, and discloses a charging tray feeding and discharging device and production equipment. The charging tray feeding and discharging device comprises a frame body, a charging tray supply mechanism, a synchronous carrying mechanism and a conveying mechanism. The vertically-through storage cavity is formed in the frame body and divided into the feeding area, the working area and the discharging area, so that feeding can be conducted on the lower side of the frame body, discharging can be conducted on the upper side of the frame body, and then placing and recycling operation of the trays can be achieved on the same side of the conveying line. Compared with a traditional charging tray feeding and discharging device, the occupied space is small. Correspondingly, feeding and discharging are conducted on the same side of the conveying line, a lengthy conveying line does not need to be arranged, and therefore the conveying time can be shortened, and the overall production efficiency can be improved. In addition, feeding and discharging are conducted on the same side of the conveying line, workers do not need to frequently go back and forth to the two sides of the conveying line, and therefore the workload and labor intensity of operators are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of loading and unloading equipment, and in particular to a material tray loading and unloading device and production equipment. Background Art

[0002] In current industrial automation production, tray loading and unloading devices are important equipment to ensure efficient material flow and processing. Existing tray loading and unloading devices usually include loading stations, processing stations, and unloading stations. In terms of layout, these three stations are arranged in sequence according to the conveying direction of the conveyor line.

[0003] However, the traditional tray loading and unloading device has the following problems. First, because the stations are arranged in sequence, the conveyor line has to be long in order to connect the stations in series, which makes the conveyor line long and occupies a large space. Second, the transmission time of the tray on the long conveyor line becomes longer, resulting in a decrease in overall production efficiency. Third, when loading and unloading materials, the operator needs to frequently travel back and forth between the loading and unloading stations on both sides of the conveyor line to place and recycle the trays, which increases the workload and labor intensity of the operator.

[0004] Therefore, the above problems need to be solved urgently. Summary of the invention

[0005] The object of the present invention is to provide a tray loading and unloading device and production equipment, so as to realize the placement and recovery operations of the tray on the same side of the conveyor line, occupying a small space, helping to improve the overall production efficiency and reduce the workload and labor intensity of the operators.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A material tray loading and unloading device is used to load and unload materials on a material tray, and the material tray loading and unloading device comprises:

[0008] The frame includes a vertically penetrating storage cavity, wherein the storage cavity includes a loading area, a working area, and a unloading area arranged from bottom to top;

[0009] A material tray supply mechanism is disposed on the frame and is configured to supply material trays one by one to the loading area;

[0010] A conveying mechanism, configured to convey or recycle the trays in the working area;

[0011] The synchronous transport mechanism is arranged on the frame and is configured to transport the trays in the loading area to the working area and stack the trays in the working area to the unloading area.

[0012] Preferably, the synchronous transport mechanism comprises:

[0013] First support assemblies, two of which are vertically spaced apart, and the two first support assemblies can be synchronously lifted and lowered between the working area and the unloading area;

[0014] The first of the first supporting components is configured to receive and carry the trays supplied by the tray supply mechanism, and to lift the trays and supply them to the conveying mechanism, and the second of the first supporting components is configured to receive and carry the trays returned by the conveying mechanism, and to lift the trays to the unloading area;

[0015] The second supporting assembly is arranged on the frame and located in the unloading area, and is configured to receive and carry the trays lifted to the unloading area by the first supporting assembly one by one, so as to stack all the trays.

[0016] Preferably, the tray loading and unloading device further comprises a third support assembly arranged on the frame, the third support assembly is located in the working area, and the third support assembly is configured to receive and carry the tray lifted from the loading area to the working area by the synchronous transport mechanism;

[0017] The first support components are vertically spaced apart in three pieces, and the third first support component is located below the first first support component. When the first first support component receives and carries the first material tray supplied by the material tray supply mechanism, the third first support component is configured to receive and carry the second material tray supplied by the material tray supply mechanism, and lift the second material tray and supply it to the third support component.

[0018] Preferably, the synchronous transport mechanism further comprises:

[0019] A bearing member is vertically slidably disposed on the frame, and two of the first supporting components are arranged on the bearing member along a vertical direction;

[0020] The driving member is disposed on the frame, and the driving member is configured to drive the bearing member to slide.

[0021] Preferably, the synchronous transport mechanism further comprises a guide rail arranged on the frame, and the bearing member is slidably engaged with the guide rail.

[0022] Preferably, the first supporting assembly comprises at least two supporting members pivotally connected to the supporting member, each of the supporting members having a working position extending into the storage cavity and a standby position exiting the storage cavity, and all of the supporting members can respectively support opposite sides of the material tray when located at the working position.

[0023] Preferably, the first supporting assembly further comprises a limiting member disposed on the bearing member, and the limiting member is used to limit the supporting member so as to keep the supporting member in the working position when supporting the material tray.

[0024] Preferably, the first supporting assembly further comprises an elastic telescopic member connecting the bearing member and the supporting member, wherein the elastic telescopic member is used to push the supporting member from the upper side of the limiting member to the upper side of the limiting member.

[0025] Preferably, the frame includes two vertically arranged base plates, the storage cavity is formed between the two base plates, and the frame also includes a plurality of connecting rods connecting the two base plates into one.

[0026] A production equipment comprises a conveyor line and the above-mentioned tray loading and unloading device, wherein the conveyor line is configured to receive and transport fully loaded trays output by the tray loading and unloading device, and the conveyor line is configured to transport empty trays to the tray loading and unloading device so that the tray loading and unloading device can recycle the empty trays.

[0027] Beneficial effects of the present invention:

[0028] The present invention provides a vertically penetrating storage cavity on the frame, and is divided into a loading area, a working area, and a unloading area, so that loading can be performed on the lower side of the frame and unloading can be performed on the upper side of the frame, thereby enabling the placement and recovery of the trays on the same side of the conveyor line. Compared with the traditional tray loading and unloading device, it occupies less space. Correspondingly, loading and unloading on the same side of the conveyor line does not require the provision of a lengthy conveyor line, thereby shortening the transmission time and thereby helping to improve the overall production efficiency. In addition, loading and unloading on the same side of the conveyor line does not require the staff to frequently travel back and forth between the two sides of the conveyor line, thereby reducing the workload and labor intensity of the operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the tray loading and unloading device provided by the present invention;

[0030] Figure 2 The structure diagram of the synchronous transport mechanism, the second support assembly and part of the frame provided by the present invention is shown in FIG. Figure 1 ;

[0031] Figure 3 The structure diagram of the synchronous transport mechanism, the second support assembly and part of the frame provided by the present invention is shown in FIG. Figure 2 ;

[0032] Figure 4 yes Figure 2 Enlarged view of point A in the middle.

[0033] In the figure:

[0034] 1. Frame; 11. Storage cavity; 12. Base plate; 13. Connecting rod; 2. Synchronous transport mechanism; 21. First support assembly; 211. Support member; 212. Limiting member; 22. Carrying member; 23. Driving member; 24. Guide rail; 25. Second support assembly; 3. Third support assembly. DETAILED DESCRIPTION

[0035] Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above drawings.

[0036] In this application, the terms "comprises", "includes", "has" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device that includes the element.

[0037] In the present application, the term "and / or" is a description of the association relationship of associated objects, indicating that three relationships may exist. For example, a centrifugal vortex magnetic pump and / or a centrifugal vortex magnetic pump can represent: the existence of a centrifugal vortex magnetic pump alone, the existence of a centrifugal vortex magnetic pump and a centrifugal vortex magnetic pump at the same time, and the existence of a centrifugal vortex magnetic pump alone. In addition, the character " / " in the present application generally indicates that the objects associated before and after are in an "and / or" relationship.

[0038] In the present application, the terms "connect", "combine", "couple", and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, direct connection refers to two parts or components being connected together without the need for an intermediate piece, and indirect connection refers to two parts or components being connected to at least one intermediate piece respectively, and the two parts or components being connected via the intermediate piece. In addition, "connect" and "couple" are not limited to physical or mechanical connections or couplings, and may include electrical connections or couplings.

[0039] In the present application, it will be understood by those of ordinary skill in the art that relative terms (e.g., "about," "approximately," "substantially," etc.) used in conjunction with quantities or conditions include the values ​​and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a specific value, the tolerances caused by manufacturing, assembly, and use associated with a specific value, and the like. Such terms should also be considered to disclose a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. In addition, "substantially" may refer to plus or minus a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) on the basis of the indicated angle when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular).

[0040] In this application, it will be understood by those skilled in the art that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0041] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element. It should also be understood that the directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, the bottom can include directly below, lower left, lower right, lower front, and lower back, etc.

[0042] See also Figures 1 to 4 , this embodiment provides a tray loading and unloading device for loading and unloading trays, which includes a frame 1, a tray supply mechanism (not shown in the figure), a synchronous transport mechanism 2 and a conveying mechanism (not shown in the figure). Among them, the frame 1 includes a vertically through storage chamber 11, and the storage chamber 11 includes a loading area, a working area and a unloading area arranged from bottom to top. The tray supply mechanism is arranged on the frame 1, and is configured to supply trays one by one to the upper material area. The conveying mechanism is configured to send out or recycle the trays in the working area. The synchronous transport mechanism 2 is arranged on the frame 1, and is configured to transport the trays in the loading area to the working area, and at the same time stack the trays in the working area to the unloading area.

[0043] Based on the above, the tray loading and unloading device mainly includes the following working steps:

[0044] S1: A plurality of trays are stacked into a tray stack and placed in a loading area at the bottom of the storage chamber 11 .

[0045] S2: The tray supply mechanism works to lift the tray stack located in the loading area upward.

[0046] S3: The synchronous transport mechanism 2 works to receive and carry the first tray in the tray stack and lift it to the working area.

[0047] S4: The conveying mechanism works to deliver the material tray. After the material tray is used, the conveying mechanism recycles it to the working area.

[0048] S5: The synchronous transport mechanism 2 continues to work to lift the material trays recovered to the working area to the unloading area.

[0049] The above steps are repeated many times, and the trays are transported to the unloading area one by one and stacked.

[0050] It is understandable that a vertically penetrating storage cavity 11 is provided on the frame 1 and is divided into a loading area, a working area and a unloading area, so that loading can be performed on the lower side of the frame 1 and unloading can be performed on the upper side of the frame 1, and thus the placement and recovery operations of the trays can be realized on the same side of the conveyor line. Compared with the traditional tray loading and unloading device, it occupies less space. Correspondingly, loading and unloading on the same side of the conveyor line does not require setting up a lengthy conveyor line, thereby shortening the transmission time and thus helping to improve the overall production efficiency. In addition, loading and unloading on the same side of the conveyor line does not require the staff to frequently travel back and forth between the two sides of the conveyor line, thereby reducing the workload and labor intensity of the operators.

[0051] It should be noted that the conveying mechanism can adopt existing conveying structures such as push plate type and fork type. This embodiment does not make specific requirements and restrictions on this. In this embodiment, the conveying mechanism is a push plate type conveying structure, which is mainly composed of a push plate, a driving cylinder, a slide rail, a slider, etc. The push plate is connected to the piston rod of the driving cylinder, and the slide rail and the slider are used to ensure the linear motion of the push plate. When it is necessary to push the material tray out of the working area, the driving cylinder pushes the push plate to move linearly along the slide rail. After the push plate contacts the material tray, the material tray is pushed out of the working area to the specified position. Conversely, when the material tray is recovered, the driving cylinder pushes the push plate to move linearly along the slide rail. After the push plate contacts the material tray, the material tray is pulled back to the working area. Among them, the push plate and the material tray can be connected by magnetic attraction, snap fasteners, clamps and other structures, so they will not be described in detail.

[0052] Specifically, the synchronous transport mechanism 2 includes a first support assembly 21 and a second support assembly 25. Two first support assemblies 21 are arranged vertically at intervals, and the two first support assemblies 21 can be raised and lowered synchronously between the working area and the unloading area. Among them, the first first support assembly 21 is configured to receive and carry the trays supplied by the tray supply mechanism, and lift the trays and supply them to the conveying mechanism, and the second first support assembly 21 is configured to receive and carry the trays returned by the conveying mechanism, and lift the trays to the unloading area. The second support assembly 25 is arranged on the frame 1 and is located in the unloading area, and is configured to receive and carry the trays lifted to the unloading area by the first support assembly 21 one by one, so as to stack all the trays.

[0053] With this arrangement, from the tray supply mechanism feeding, to the conveying mechanism conveying, to the synchronous conveying mechanism 2 conveying the used trays to the unloading area for stacking, each link is closely connected, which helps to improve the overall production efficiency. At the same time, this structural design is consistent with the division of the loading area, working area and unloading area of ​​the storage cavity 11 on the frame 1, and together realizes the function of loading and unloading on the same side of the conveyor line, further highlighting the advantages of the device such as small space occupation and short transmission time.

[0054] In particular, the tray loading and unloading device further includes a third support assembly 3 disposed on the frame 1, the third support assembly 3 is located in the working area, and the third support assembly 3 is configured to receive and carry the tray lifted from the loading area to the working area by the synchronous transport mechanism 2. Three first support assemblies 21 are vertically spaced, and the third first support assembly 21 is located below the first first support assembly 21. When the first first support assembly 21 receives and carries the first tray supplied by the tray supply mechanism, the third first support assembly 21 is configured to receive and carry the second tray supplied by the tray supply mechanism, and lift and supply the second tray to the third support assembly 3.

[0055] It can be understood that by setting up the third first support component 21, when the first first support component 21 processes the first material tray, the third first support component 21 can simultaneously receive and carry the second material tray, thereby realizing parallel processing of different material trays, effectively reducing the overall loading waiting time, and allowing the material tray to enter the working area faster for subsequent operations, thereby improving the working efficiency of the entire material tray loading and unloading device.

[0056] It can also be understood that the third first support assembly 21 lifts the second material tray and supplies it to the third support assembly 3, ensuring a continuous supply of material trays in the working area, allowing the conveying mechanism to more quickly obtain the next material tray to be processed, which helps to maintain the continuity of production and avoid production stagnation due to untimely supply of material trays.

[0057] In addition, this setting further refines and optimizes the material tray handling process, so that each supporting component has a clear and specific task, and the transfer of material trays between different components is more orderly and precise, which helps to improve the accuracy and repeatability of the entire loading and unloading operation, and reduces problems such as material tray damage or position deviation caused by chaotic operation.

[0058] Furthermore, the synchronous transport mechanism 2 further includes a bearing member 22 and a driving member 23. The bearing member 22 is vertically slidably disposed on the frame 1, and the two first support assemblies 21 are arranged on the bearing member 22 in the vertical direction. The driving member 23 is disposed on the frame 1, and the driving member 23 is configured to drive the bearing member 22 to slide. In this embodiment, the driving member 23 is preferably a cylinder, and in other embodiments, the driving member 23 may also adopt any other existing linear drive structure, so there is no limitation on this.

[0059] It is understandable that the driving member 23 drives the bearing member 22 to slide vertically on the frame 1, and the bearing member 22 drives the two first support components 21 and the material tray to rise and fall together, so that the driving member 23 can accurately control the sliding distance and speed of the bearing member 22, thereby realizing the accurate positioning of the material tray at different height positions. Combined with the actual application scenario, the material tray can be accurately delivered to a specific location such as a working area or a material unloading area, thereby improving the accuracy and consistency of the production process and ensuring the smooth progress of subsequent processing or treatment procedures.

[0060] In order to further improve the stability during the lifting process of the material tray, the synchronous transport mechanism 2 also includes a guide rail 24 arranged on the frame 1, and the support member 22 slides in cooperation with the guide rail 24, so that the support member 22 can accurately return to the same position every time it slides on the guide rail 24, thereby ensuring the consistency of subsequent processes.

[0061] In this embodiment, the structures of the first support assembly 21, the second support assembly 25 and the third support assembly 3 are consistent, and the structure of the first support assembly 21 is used as an example for explanation below. The first support assembly 21 includes at least two support members 211 pivotally connected to the carrier 22, each support member 211 has a working position extending into the storage cavity 11 and a standby position exiting the storage cavity 11, and all the support members 211 are capable of supporting opposite sides of the material tray respectively when they are in the working position.

[0062] With such a configuration, the support member 211 has a working position and a standby position. When in the standby position, the support member 211 will not hinder the tray from entering or leaving the working area, which facilitates the loading and unloading operations of the tray. When the tray needs to enter the working area, the support member 211 can quickly switch from the standby position to the working position to support the tray; when the tray needs to leave after the operation is completed, the support member 211 can quickly return to the standby position to allow the tray to be smoothly moved out, thereby improving the space utilization of the working area and the smoothness of the work process. In addition, multiple support members 211 support the opposite sides of the tray respectively, which can evenly distribute the weight of the tray to the support member 22, reduce the bearing pressure of a single support point, reduce the risk of deformation or damage of the support member 211 and the support member 22 due to excessive local force, enhance the structural stability of the entire first support assembly 21, and extend the service life of the equipment.

[0063] Furthermore, the first support assembly 21 also includes a limiter 212 (not shown) disposed on the carrier 22, and the limiter 212 is used to limit the support member 211 so that it remains in the working position when supporting the material tray. The limiter 212 can effectively prevent the support member 211 from accidentally shifting or shaking in the process of supporting the material tray, thereby ensuring that the support member 211 is always in the accurate working position, providing stable and reliable support for the material tray, and reducing the risk of the material tray falling or being damaged due to unstable support. In addition, the support member 211 is maintained in a fixed working position under the action of the limiter 212, so that the position deviation of the support member 211 in the horizontal and vertical directions can be effectively controlled.

[0064] Furthermore, the first support assembly 21 further comprises an elastic member connecting the bearing member 22 and the support member 211, and the elastic member is used to push the support member 211 from the upper side of the limit member 212 to the limit member 212. In this embodiment, the elastic member is a telescopic spring.

[0065] In actual applications, when the tray is lifted from bottom to top, the elastic telescopic member allows the support member 211 to rotate to the standby position when pushed by the tray, thereby avoiding the path of the tray's rise and not hindering the tray's rise, thus avoiding damage to the tray or equipment failure that may be caused by the support member 211 blocking it. Correspondingly, when the tray needs to be placed, the elastic telescopic member can quickly open the support member 211, allowing it to quickly reach the supporting position, providing timely and reliable support for the tray. With such a configuration, the elastic telescopic member can enable the support member 211 to avoid and support quickly and automatically, without the need for manual intervention or additional complex operations, thereby improving operating efficiency.

[0066] In order to make the structure of the tray loading and unloading device more compact, the frame 1 includes two vertically arranged base plates 12, a storage cavity 11 is formed between the two base plates 12, and the frame 1 also includes a plurality of connecting rods 13 that connect the two base plates 12 into one. It can be understood that the structure of the frame 1 composed of the base plates 12 and the connecting rods 13 is simpler in manufacturing, and the base plates 12 and the connecting rods 13 can be processed separately and then assembled by welding, bolting, etc., which is convenient for adopting standardized production processes, improving production efficiency, and reducing manufacturing costs.

[0067] This embodiment also provides a production device, which includes a conveyor line and the above-mentioned tray loading and unloading device, the conveyor line is configured to receive and transport the fully loaded tray output by the tray loading and unloading device, and the conveyor line is configured to transport the empty tray to the tray loading and unloading device so that the tray loading and unloading device can recycle the empty tray. In this way, the conveyor line can automatically receive the fully loaded tray output by the tray loading and unloading device and return the empty tray, so that the entire production process forms an automated closed loop, thereby eliminating the need for manual frequent handling of trays, reducing manual intervention, improving the continuity and efficiency of production, and facilitating large-scale automated production.

[0068] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A tray loading and unloading device, used for loading and unloading trays, characterized in that: The tray loading and unloading device comprises: The frame (1) comprises a vertically penetrating storage cavity (11), wherein the storage cavity (11) comprises a loading area, a working area and a unloading area arranged from bottom to top; A material tray supply mechanism is arranged on the frame (1) and is configured to supply material trays one by one to the loading area; A conveying mechanism, configured to convey or recycle the trays in the working area; The synchronous transport mechanism (2) is arranged on the frame (1) and is configured to transport the material trays in the loading area to the working area and to stack the material trays in the working area to the unloading area.

2. A tray loading and unloading device according to claim 1, characterized in that: The synchronous transport mechanism (2) comprises: Two first support assemblies (21) are vertically spaced apart, and the two first support assemblies (21) can be synchronously lifted and lowered between the working area and the unloading area; The first first support assembly (21) is configured to receive and carry the tray supplied by the tray supply mechanism, and to lift the tray and supply it to the conveying mechanism, and the second first support assembly (21) is configured to receive and carry the tray returned by the conveying mechanism, and to lift the tray to the unloading area; The second support assembly (25) is arranged on the frame (1) and located in the unloading area, and is configured to receive and carry the trays lifted to the unloading area by the first support assembly (21) one by one, so as to stack all the trays.

3. A tray loading and unloading device according to claim 2, characterized in that: The tray loading and unloading device further comprises a third support assembly (3) arranged on the frame (1), the third support assembly (3) being located in the working area, and the third support assembly (3) being configured to receive and carry the tray lifted by the synchronous transport mechanism (2) from the loading area to the working area; The first support components (21) are vertically spaced apart in three numbers, and the third first support component (21) is located below the first first support component (21). When the first first support component (21) receives and carries the first material tray supplied by the material tray supply mechanism, the third first support component (21) is configured to receive and carry the second material tray supplied by the material tray supply mechanism, and to lift and supply the second material tray to the third support component (3).

4. A tray loading and unloading device according to claim 3, characterized in that: The synchronous transport mechanism (2) further comprises: A bearing member (22) is vertically slidably disposed on the frame (1), and two of the first supporting components (21) are arranged on the bearing member (22) along a vertical direction; A driving member (23) is disposed on the frame (1), and the driving member (23) is configured to drive the supporting member (22) to slide.

5. A tray loading and unloading device according to claim 4, characterized in that: The synchronous transport mechanism (2) further comprises a guide rail (24) arranged on the frame (1), and the bearing member (22) is slidably engaged with the guide rail (24).

6. A tray loading and unloading device according to claim 4, characterized in that: The first support assembly (21) comprises at least two support members (211) pivotally connected to the carrier member (22), each of the support members (211) having a working position extending into the storage cavity (11) and a standby position exiting the storage cavity (11), and all of the support members (211) are capable of respectively supporting two opposite sides of the material tray when located at the working position.

7. A tray loading and unloading device according to claim 6, characterized in that: The first supporting assembly (21) further comprises a limiting member (212) arranged on the bearing member (22), wherein the limiting member (212) is used to limit the supporting member (211) so as to keep the supporting member (211) at the working position when supporting the material tray.

8. A tray loading and unloading device according to claim 7, characterized in that: The first supporting assembly (21) further comprises an elastic telescopic member connecting the bearing member (22) and the supporting member (211), the elastic telescopic member being used to push the supporting member (211) from the upper side of the limiting member (212) to the limiting member (212).

9. A tray loading and unloading device according to claim 1, characterized in that: The frame (1) comprises two vertically arranged base plates (12), with the storage cavity (11) being formed between the two base plates (12). The frame (1) also comprises a plurality of connecting rods (13) connecting the two base plates (12) into one.

10. A production equipment, characterized in that: It comprises a conveyor line and a tray loading and unloading device as described in any one of claims 1 to 9, wherein the conveyor line is configured to receive and transport fully loaded trays output by the tray loading and unloading device, and the conveyor line is configured to transport empty trays to the tray loading and unloading device so that the tray loading and unloading device can recycle the empty trays.

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