tray magazine

Abstract

A tray rack includes a rack base and a plurality of tray storage racks, the rack base is provided with one of a sliding block and a sliding rail, the bottom of the tray storage rack is provided with the other one of the sliding block and the sliding rail, and the sliding block is slidably arranged on the sliding rail, so that the plurality of tray storage racks can be independently slid on the rack base. Wherein, the tray storage rack has a front baffle and a rear baffle on two sides perpendicular to the extension direction of the sliding rail, the front baffle and the rear baffle are used to limit the two end faces of the tray in the axial direction, and the height of the rear baffle is higher than that of the front baffle. In this application, the sliding cooperation between the sliding block and the sliding rail realizes the independent sliding of each tray storage rack, which facilitates the mechanical arm to take and place the material; at the same time, the rear baffle and the front baffle are designed with long and short sides, the tray is placed by the long side (rear baffle) when discharging, which effectively absorbs the outward deformation of the tray, so as to store more trays in limited space, and ensures the vertical conveying of the material belt and prevents the material belt from being scratched and pulled.

Description

Technical Field

[0001] This application relates to the field of material tray storage technology, and more particularly to a material tray rack. Background Technology

[0002] Pick and place machines, also known as surface mount machines, are a core piece of equipment in the SMT (Surface Mount Technology) industry production line. They are mainly used to mount electronic components onto circuit boards. Pick and place machines typically account for more than 60% of the total investment in an SMT production line, and the production capacity of the line is mainly determined by the pick and place machines.

[0003] To ensure a continuous supply of materials to the pick-and-place machine, a tray rack is typically installed on the machine to hold the trays with carrier tape wound on them, facilitating continuous material feeding. Existing tray racks mostly employ simple sheet metal designs with limited space between trays, making automated material handling by robotic arms difficult. Manual tray changes are inefficient, easily impacting production line productivity, and labor costs are rising annually, resulting in significant expenses. Furthermore, manual operation is prone to errors, especially when the tray rack and identification codes are separate; manual scanning and material placement can easily lead to insufficient confirmation, mixed materials, or incorrect placement, disrupting production. Existing tray racks also lack versatility. For 7-inch trays, insufficient positioning requires them to be held at the front of the rack, while 13-inch trays require insertion through a mandrel before placement, making the process cumbersome and prone to mandrel loss.

[0004] Therefore, how to improve the technical defects existing in the prior art has always been a problem that ordinary people skilled in the art need to solve. Summary of the Invention

[0005] The purpose of this application is to provide a material tray rack that enables automated material receiving and changing for the pick-and-place machine while maintaining continuous production on an SMT line, thereby greatly improving production efficiency.

[0006] The technical solution provided by this invention is as follows:

[0007] A material tray rack, comprising:

[0008] A material rack base, wherein the material rack base is provided with one of a slider and a slide rail;

[0009] A plurality of tray storage racks, wherein the bottom of each tray storage rack is provided with either a slider or a slide rail, the slider being slidably disposed on the slide rail, so that each of the plurality of tray storage racks can be independently slidably disposed on the rack base; and each tray storage rack can hold at most one tray.

[0010] The material tray storage rack has a front baffle and a rear baffle on both sides perpendicular to the extension direction of the slide rail. The front baffle and the rear baffle are used to restrict the two end faces of the material tray in the axial direction, and the height of the rear baffle is higher than the height of the front baffle.

[0011] In some embodiments, four rollers are provided between the front baffle and the rear baffle. The four rollers are arranged sequentially along a preset arc curve, the arc curve having a first diameter. The four rollers are adapted to support a circular tray with a diameter of the first diameter. The perpendicular bisectors of the two rollers on the sides are coaxial with the perpendicular bisectors of the two rollers in the middle, and the two rollers in the middle are adapted to support a circular tray with a diameter of the second diameter. The first diameter is larger than the second diameter.

[0012] In some embodiments, the two middle rollers are located at the intersection of the circumference of an arc curve with a first diameter and an arc curve with a second diameter.

[0013] In some embodiments, both the front baffle and the rear baffle are provided with clearance holes, which are suitable for the robotic arm to grasp or place the material tray;

[0014] Wherein, the projection of the clearance hole of the front baffle on the rear baffle coincides with the clearance hole on the rear baffle.

[0015] In some embodiments, the rack base has a side outlet at one end in the direction of the slide rail extension, and the tray storage rack is adapted to slide out of or into the rack base from the side outlet.

[0016] In some embodiments, the tray storage rack is provided with a hook on one side of the slide rail extension direction for driving the tray storage rack to slide along the slide rail extension direction.

[0017] In some embodiments, the top end face of the front baffle is inclined and is tilted toward the side of the hook along the extension direction of the slide rail.

[0018] In some embodiments, an identification code is provided around the hook to identify information about the tray storage rack.

[0019] In some embodiments, the base of the material rack is provided with one of a positioning post and a positioning hole, and the bottom of the material tray storage rack is provided with the other of a positioning post and a positioning hole. The positioning post is engaged with the positioning hole to restrict the sliding of the material tray storage rack relative to the base of the material rack.

[0020] In some embodiments, the positioning post is disposed on the tray storage rack, and the number of positioning posts on each tray storage rack is one; the positioning hole is disposed on the rack base, including a first positioning hole and a second positioning hole; when the positioning post is engaged in the first positioning hole, the tray storage rack is restricted to a state of sliding out of the rack base; when the positioning post is engaged in the second positioning hole, the tray storage rack is restricted to a state of sliding into the rack base;

[0021] and / or

[0022] The end of the positioning post that is suitable for passing through the positioning hole has a conical or spherical structure.

[0023] The technical advantages of this application are as follows:

[0024] 1. In this application, the material tray storage rack is mounted on the material rack base via a sliding engagement between a slide rail and a slider. When the pick-and-place machine needs to change materials, the corresponding material tray storage rack can be pulled open to replace or place the material tray inside. In this way, the robotic arm can be unrestricted by the space between two adjacent material trays, realizing automated material handling, improving production capacity, avoiding material mixing or misplacement that may occur due to manual material handling, and reducing the error rate.

[0025] 2. In this application, the material tray storage rack has a rear baffle and a front baffle, and adopts a long and short side design. When discharging materials, the robotic arm can grab the material tray and discharge the materials along the long side (rear baffle), thereby effectively absorbing the outward deformation of the material tray. This is beneficial for storing more material trays in a limited space and ensuring vertical conveying of the material belt, preventing the material belt from being scratched or pulled.

[0026] 3. In this application, the material tray storage rack is equipped with four rollers, which can support material trays of two different diameters, thereby improving the versatility of the material tray rack. At the same time, compared with the existing limiting method for material trays of different sizes, the use of rollers to support material trays of different sizes is simpler to operate and more stable, and is less likely to affect the conveying of the material belt.

[0027] 4. In this application, the material tray storage rack is provided with an identification code on the side of the hook to identify the information of the material tray storage rack. This allows for secondary confirmation of the information when automatically picking up and replacing material trays, effectively preventing material receiving errors.

[0028] 5. In this application, a positioning post is provided at the bottom of the tray storage rack, and a first positioning hole and a second positioning hole are provided on the rack base. When the tray storage rack slides, the positioning post can be selectively engaged in either the first or second positioning hole. When engaged in the first positioning hole, the tray storage rack is restricted to a state where it slides out of the rack base, facilitating the robotic arm to pick up and replace it without it moving. When engaged in the second positioning hole, the tray storage rack is restricted to a state where it slides into the rack base, achieving stable storage of the tray. Furthermore, in this application, the positioning post is preferably cone-shaped or spherical at one end, which allows for engagement without affecting the pulling and sliding of the tray storage rack. Attached Figure Description

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0030] Figure 1 This is a three-dimensional structural diagram of the material tray and rack provided in one embodiment of the present application;

[0031] Figure 2 This is a three-dimensional structural diagram of the tray storage rack provided in one embodiment of this application;

[0032] Figure 3 This is a three-dimensional structural diagram of the material rack base provided in one embodiment of this application;

[0033] Figure 4 This is a schematic diagram of the structure of the material tray when the material is discharged from the rear baffle in one embodiment of this application;

[0034] Figure 5 This is a side view of a 7-inch tray placed in a tray storage rack, as provided in one embodiment of this application;

[0035] Figure 6 This is a partial perspective view of the tray storage rack provided in one embodiment of this application;

[0036] Figure 7 This is a schematic diagram of the structure of the roller supporting the storage tray 13 provided in one embodiment of the present application;

[0037] Figure 8 This is a schematic diagram of the structure of the roller supporting the storage tray 7 provided in one embodiment of the present application;

[0038] Figure 9 This is a comparison diagram of the rollers supporting storage tray 13 and storage tray 7 provided in one embodiment of this application;

[0039] Figure 10 This is a structural view of the tray storage rack provided in one embodiment of the present application in a slid-out state;

[0040] Figure 11 This is a structural view of the tray storage rack provided in one embodiment of the present application in a slid-in state.

[0041] Explanation of icon numbers:

[0042] 100. Material tray / rack; 110. Material rack base; 111. Slide rail; 1111. Front slide rail section; 1112. Rear slide rail section; 112. Side outlet; 113. First positioning hole; 114. Second positioning hole; 120. Material tray storage rack; 121. Slider; 122. Front baffle; 123. Rear baffle; 124. Support roller; 125. Hook; 126. Identification code; 127. Positioning post; 128. Clearance hole;

[0043] 200, tray; 201, 7-inch tray; 202, 13-inch tray. Detailed Implementation

[0044] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application can also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0045] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the specific implementation methods of this application will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this application. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0046] To keep the drawings concise, each drawing only schematically shows the parts relevant to this application, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0047] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0048] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0049] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of the various components of this application are relative rather than absolute. These descriptions are appropriate when these components are in the positions shown in the drawings. If the description of the positions of these components changes, these directional indications also change accordingly.

[0050] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0051] To address the problem in existing technologies where the limited space between material trays makes it difficult to automate material handling by robotic arms, this application provides a material tray rack that enables automated material receiving and changing by pick-and-place machines while maintaining continuous production on an SMT line, significantly improving production efficiency and reducing error rates.

[0052] In one specific embodiment, see Figures 1 to 3 A material tray rack 100 includes a rack base 110 and several material tray storage racks 120, each of which can hold at most one material tray 200. The rack base 110 is equipped with either a slider 121 or a slide rail 111, while the bottom of each material tray storage rack 120 is equipped with the other of the slider 121 and slide rail 111. The slider 121 slides on the slide rail 111, allowing each material tray storage rack 120 to slide independently on the rack base 110. Thus, when a material tray 200 needs to be replaced, the corresponding material tray storage rack 120 is pulled out, overcoming the problem in existing technologies where the limited space between material trays 200 makes it difficult for robotic arms to pick up and place materials. This achieves automated material receiving and replacement for the pick-and-place machine, increasing production capacity and avoiding material mixing or misplacement due to manual material replacement, thereby reducing the error rate. In addition, the sliding fit between the tray storage rack 120 and the rack base 110 facilitates the disassembly and assembly of the tray storage rack 120, thereby making it easier to clean the inside of the tray 200 base and the tray storage rack 120, which is highly practical.

[0053] Specifically, the material rack base 110 has a side outlet 112 at one end in the extension direction of the slide rail 111, and several material tray storage racks 120 are adapted to slide out or slide into the material rack base 110 from the side outlet 112. That is, the several material tray storage racks 120 enter and exit from the same side, so that the robotic arm can pick up and put away the material trays 200 in the material tray rack 100 from the same side, which is convenient for operation.

[0054] For example, the slide rail 111 can be provided on the material rack base 110, and the slider 121 can be provided on the material tray storage rack 120. The slide rail 111 can be a continuous structure that extends to both sides of the material tray 200 base. In this case, the slider 121 can be a continuous structure or multiple discontinuous structures, both of which can achieve sliding cooperation between the slider 121 and the slide rail 111.

[0055] In one specific embodiment, see Figure 3 The slide rail 111 adopts a discontinuous structure, that is, the slide rail 111 includes a front slide rail section 1111 and a rear slide rail section 1112 arranged at intervals. The front slide rail section 1111 is located near the side outlet 112, and the rear slide rail section 1112 is at a preset distance from the side of the material rack base 110 away from the front slide rail section 1111. This preset distance can be flexibly set according to the actual situation and is not limited here, all of which are within the protection scope of this application. At this time, the slide rail 111 adopts a continuous structure, extending substantially to both sides of the material tray storage rack 120 to achieve stable sliding of the material tray storage rack 120.

[0056] As a preferred option, see Figure 2 and Figure 3 The material rack base 110 is provided with one of a positioning post 127 and a positioning hole, and the bottom of the material tray storage rack 120 is provided with the other of a positioning post 127 and a positioning hole. The positioning post 127 is locked in the positioning hole, which can limit the sliding of the material tray storage rack 120 relative to the material rack base 110 and prevent the material tray storage rack 120 from running.

[0057] Specifically, see Figure 10 and Figure 11 Taking a positioning post 127 located on a tray storage rack 120 and a positioning hole located on the base of the tray 200 as an example, the tray storage rack 120 has one positioning post 127, while the tray base 110 has at least two positioning holes, including a first positioning hole 113 and a second positioning hole 114. Each tray storage rack 120 can correspond to one first positioning hole 113 and one second positioning hole 114. When the positioning post 127 is engaged in the first positioning hole 113, the tray storage rack 120 is restricted to sliding out of the tray base 110, which facilitates the robotic arm to pick up and replace the tray without it moving. When the positioning post 127 is engaged in the second positioning hole 114, the tray storage rack 120 is restricted to sliding into the tray base 110, which enables stable storage of the tray 200.

[0058] Preferably, see Figure 3 In this embodiment, the first positioning holes 113 corresponding to several tray storage racks 120 can be integrated into a single hole structure, and the second positioning holes 114 corresponding to several tray storage racks 120 can also be integrated into a single hole structure. That is, there are two positioning holes on the tray base 110, namely the first positioning hole 113 and the second positioning hole 114, and both the first positioning hole 113 and the second positioning hole 114 extend to both sides of the tray base 110 along the extension direction perpendicular to the slide rail 111.

[0059] In this embodiment, see Figure 2 and Figure 3 The slide rail 111 on the material rack base 110 preferably adopts a discontinuous structure, that is, the slide rail 111 includes a front slide rail section 1111 and a rear slide rail section 1112 arranged at intervals. The first positioning hole 113 and the second positioning hole 114 can be located on the side of the rear slide rail section 1112 away from the front slide rail section 1111. At this time, the preset distance left between the rear slide rail section 1112 and the side of the material rack base 110 away from the front slide rail section 1111 is adapted to the position arrangement of the first positioning hole 113 and the second positioning hole 114, and the structural setting is more reasonable and has a high utilization rate.

[0060] Furthermore, the positioning post 127 is preferably cone-shaped or spherical at one end, which can guide the positioning post 127 to easily enter and exit the positioning hole without affecting the sliding of the tray storage rack 120. For example, when the tray storage rack 120 is pulled out, only a certain force is needed to move the positioning post 127 out of the second positioning hole 114, thereby realizing the sliding of the tray storage rack 120. Similarly, when the pulled-out tray storage rack 120 needs to be put back, only a certain force is needed to move the positioning post 127 out of the first positioning hole 113, thereby realizing the return of the tray storage rack 120. In addition, the cone-shaped or spherical structure can also reduce the collision between the positioning post 127 and the rack base 110, reducing wear.

[0061] In actual production, the positioning post 127 is suitable to be inserted through one end face of the positioning hole. It can also be provided with an outwardly convex arc structure in the extension direction of the slide rail 111, which can also guide the positioning post 127 to enter and exit the positioning hole more easily, so as to achieve locking without affecting the pulling and sliding of the material tray storage rack 120.

[0062] Furthermore, the first positioning hole 113 and the second positioning hole 114 have guide surfaces on both sides of the slide rail 111 extending in the direction of extension, which is more conducive to guiding the positioning post 127 into and out of the positioning hole and reducing the collision between the positioning post 127 and the material rack base 110.

[0063] Specifically, see Figure 2 The material tray storage rack 120 is provided with a hook 125 on one side of the slide rail 111 extending direction, which is used to drive the material tray storage rack 120 to slide along the slide rail 111 extending direction. In actual production, the robotic arm can pull out and put back the corresponding material tray storage rack 120 by clamping the hook 125, which is highly practical.

[0064] The material tray storage rack 120 is also equipped with an identification code 126 around the hook 125, which is used for the camera on the robotic arm to identify the information of the material tray storage rack 120. This allows for secondary confirmation of the information when automatically picking up and replacing the material tray 200, effectively preventing material receiving errors.

[0065] In a preferred embodiment, see Figure 3 and Figure 4 The material tray storage rack 120 has a front baffle 122 and a rear baffle 123 on both sides along the extension direction perpendicular to the slide rail 111. The front baffle 122 and the rear baffle 123 are used to restrict the two end faces of the material tray 200 in the axial direction. At the same time, the height of the rear baffle 123 is higher than the height of the front baffle 122.

[0066] In this embodiment, a height difference exists between the rear baffle 123 and the front baffle 122 of the tray storage rack 120, forming a long-short side design. This allows the robotic arm to grasp the tray 200 and place it along its long side (rear baffle 123) during material unloading, facilitating rapid and accurate placement of the tray 200. The operation is simple and time-efficient. Furthermore, when the tray 200 is unloaded along its long side, the long side effectively absorbs the outward deformation of the tray 200, allowing the width of the tray storage rack 120 along the axial direction of the tray 200 to be as close as possible to the size of the tray 200. This enables the storage of more trays 200 within a limited space and ensures vertical conveying of the conveyor belt, preventing scratches and pulling. In addition, in this embodiment, the robotic arm can pick up and place trays 200 on the tray rack 100 from one edge of the side outlet 112, minimizing obstruction of the AGV's passageway and maximizing space utilization.

[0067] As a preferred option, see Figure 1 and Figure 5 The tray storage rack 120 provided in this embodiment is compatible with trays of different diameters, such as circular trays with a first diameter and circular trays with a second diameter.

[0068] Specifically, see Figures 6 to 9Four rollers 124 are provided between the front baffle 122 and the rear baffle 123. These four rollers 124 are arranged sequentially along a predetermined arc curve, the diameter of which is the first diameter, so that the four rollers 124 can collectively support a circular tray with a diameter of the first diameter. Furthermore, the perpendicular bisectors of the two rollers 124 on the sides are coaxial with the perpendicular bisectors of the two rollers 124 in the middle, and the two middle rollers 124 are adapted to support a circular tray with a diameter of the second diameter. The first diameter is larger than the second diameter.

[0069] Taking a 13-inch tray 202 (with the first diameter as the reference) and a 7-inch tray 201 (with the second diameter as the reference) as examples, when supporting the 13-inch tray 202, all four rollers 124 are in contact with the circumference of the 13-inch tray 202; when supporting the 7-inch tray 201, only the two middle rollers 124 are in contact with the circumference of the 7-inch tray 201. Understandably, the two middle rollers 124 are located at the intersection of the circumference curve of the 13-inch tray 202 and the circumference curve of the 7-inch tray 201; that is, the two middle rollers 124 are located at the intersection of the arc curve with the first diameter and the arc curve with the second diameter. In this embodiment, the perpendicular bisectors of the two side rollers 124 are coaxial with the perpendicular bisectors of the two middle rollers 124. This ensures that when the rollers 124 support the 7-inch tray 201 and the 13-inch tray 202, the center of gravity (or direction of gravity) of both trays is located on the perpendicular bisector, resulting in more stable support. Compared to the prior art where the 7-inch tray 201 needs to be placed at the front of the rack and the 13-inch tray 202 needs to be inserted through a mandrel before being placed on the rack, the roller support method provided in this embodiment is significantly simpler to operate. Moreover, the roller support enables rolling contact between the tray 200 and the tray storage rack 120, ensuring smooth rotation of the tray 200 without swaying and stable feeding.

[0070] In actual production, when designing the material tray storage rack 120, the height of its front baffle 122 should not exceed the height of the 7-inch material tray 201 when it is placed, and at the same time, the height of its rear baffle 123 should not be lower than the height of the 7-inch material tray 201 when it is placed.

[0071] Specifically, see Figure 2 The front baffle 122 has a clearance hole 128, which is suitable for the robotic arm to grasp or place the material tray 200. In actual production, the clearance hole 128 also helps the camera on the robotic arm to recognize the information of the material tray 200, preventing material picking errors. Together with the identification code 126 on the side of the hook 125, it can realize secondary confirmation of information and greatly reduce the error rate.

[0072] In actual production, clearance holes 128 can also be provided on the rear baffle 123, which is beneficial for achieving lightweight production. Preferably, the projection of the clearance hole 128 on the front baffle 122 onto the rear baffle 123 coincides with the clearance hole 128 on the rear baffle 123.

[0073] Specifically, the top end face of the front baffle 122 is inclined and is set at an angle towards the side where the hook 125 is located along the extension direction of the slide rail 111, which is more conducive to the robotic arm picking up and placing the material tray 200; in contrast, the top end face of the rear baffle 123 is also inclined and is set parallel to the inclined surface on the front baffle 122.

[0074] In one example embodiment, the tray rack 100 also includes a transport vehicle located below the rack base 110 for moving the tray rack 100.

[0075] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0076] It should be noted that the above embodiments can be freely combined as needed. The above are merely preferred embodiments of this application. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principles of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A material tray rack, characterized in that, include: A material rack base, wherein the material rack base is provided with one of a slider and a slide rail; A plurality of tray storage racks, wherein the bottom of each tray storage rack is provided with either a slider or a slide rail, the slider being slidably disposed on the slide rail, so that each of the plurality of tray storage racks can be independently slidably disposed on the rack base; and each tray storage rack can hold at most one tray. The material tray storage rack has a front baffle and a rear baffle on both sides perpendicular to the extension direction of the slide rail. The front baffle and the rear baffle are used to restrict the two end faces of the material tray in the axial direction, and the height of the rear baffle is higher than the height of the front baffle. Four rollers are provided between the front baffle and the rear baffle. The four rollers are arranged sequentially along a preset arc curve with a first diameter. The four rollers are adapted to support a circular tray with a diameter of the first diameter. The perpendicular bisectors of the two rollers on the sides are coaxial with the perpendicular bisectors of the two rollers in the middle. The two rollers in the middle are adapted to support a circular tray with a diameter of the second diameter. The first diameter is larger than the second diameter.

2. The material tray rack according to claim 1, characterized in that, The two middle support rollers are located at the intersection of the circumference of an arc curve with a first diameter and an arc curve with a second diameter.

3. The material tray rack according to claim 1, characterized in that, Both the front baffle and the rear baffle are provided with clearance holes, which are suitable for the robotic arm to grasp or place the material tray; Wherein, the projection of the clearance hole of the front baffle on the rear baffle coincides with the clearance hole on the rear baffle.

4. The material tray rack according to any one of claims 1-3, characterized in that, The material rack base has a side outlet at one end in the direction of the slide rail extension, and the material tray storage rack is adapted to slide out of or into the material rack base from the side outlet.

5. The material tray rack according to claim 4, characterized in that, The tray storage rack is provided with a hook on one side of the slide rail extension direction, which is used to drive the tray storage rack to slide along the slide rail extension direction.

6. The material tray rack according to claim 5, characterized in that, The top end face of the front baffle is inclined and is set at an angle towards the side of the hook along the extension direction of the slide rail.

7. The material tray rack according to claim 5, characterized in that, The hook is provided with an identification code on its periphery for identifying information about the material tray storage rack.

8. The material tray rack according to any one of claims 1-3, characterized in that, The base of the material rack is provided with one of a positioning post and a positioning hole, and the bottom of the material tray storage rack is provided with the other of a positioning post and a positioning hole. The positioning post is engaged with the positioning hole to restrict the sliding of the material tray storage rack relative to the base of the material rack.

9. The material tray rack according to claim 8, characterized in that, The positioning post is disposed on the material tray storage rack, and the number of positioning posts on each material tray storage rack is one; the positioning hole is disposed on the material rack base, including a first positioning hole and a second positioning hole; when the positioning post is engaged in the first positioning hole, the material tray storage rack is restricted to a state of sliding out of the material rack base; when the positioning post is engaged in the second positioning hole, the material tray storage rack is restricted to a state of sliding into the material rack base; and / or The end of the positioning post that is suitable for passing through the positioning hole has a conical or spherical structure.

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