Tray for electronic product and purging tool
By designing pallets and purging fixtures that are compatible with different specifications, the problem of pallet jamming was solved, the multi-specification applicability of pallets and the improvement of automated production efficiency were realized, while ensuring the cleanliness of electronic products.
Patent Information
- Application Number
- CN202520350645.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-03-03
AI Technical Summary
The existing trays have only one size compartment, which means they can only hold electronic products of a fixed size. Moreover, when multiple layers are stacked, the trays are prone to jamming, which affects the efficiency of automated production.
The design incorporates a tray structure with an inclined first guard edge and multiple receiving slots to accommodate electronic products of different sizes. The cover plate works in conjunction with the tray for blowing, ensuring the electronic products are secured and clean.
It improves the interchangeability and utilization of pallets, avoids pallet jamming, and enhances the efficiency of automated production and the cleanliness of electronic products.
Smart Images
Figure CN223878451U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of electronic component production, and particularly relates to a tray for electronic products and a blowing tool. BACKGROUND
[0002] In the production process of electronic components, trays are usually used to transport or store electronic components. Electronic components include chips, resistors, capacitors, inductors, and other electronic products. Electronic products of different specifications and models are placed in the compartments of the tray. The dimensions of these compartments are precisely matched with the electronic products, allowing accurate positioning of the electronic products and preventing damage to the electronic products due to shaking or collision. Additionally, when transporting or storing electronic products in bulk, multiple trays filled with electronic products can be stacked vertically, saving space.
[0003] In the prior art, trays are usually made of plastic, which is lightweight, durable, and has a certain degree of flexibility. However, the existing tray compartments have a single size, which can only hold electronic products of a fixed size. When multiple trays are stacked vertically, the weight of the upper trays can cause them to be stuck in the lower trays, resulting in a stuck tray and affecting the subsequent automatic device's suction action on the tray, thereby affecting the efficiency of automated production. SUMMARY
[0004] The utility model embodiment provides a tray for electronic products, which can accommodate multiple different specifications of electronic products in the same tray, improving the interchangeability and utilization rate of the tray. At the same time, the inclined arrangement of the first retaining edge can prevent the first retaining edge from deforming and causing the trays to be stuck together, thereby improving the efficiency of automated production.
[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme: in the first aspect, a tray for electronic products is provided, including a tray body, the upper surface of the tray body has an inner recessed accommodating cavity, the cavity bottom wall of the accommodating cavity is provided with a plurality of first accommodating grooves arranged at intervals, the groove bottom wall of the first accommodating groove is provided with a second accommodating groove, and the outer periphery of the tray body is provided with a first retaining edge extending gradually outward and downward.
[0006] As another embodiment of the utility model, the first retaining edge and the upper surface of the tray body form an included angle a, 100°≤a≤120°.
[0007] As another embodiment of the utility model, the horizontal projection of the tray body is rectangular, the accommodating cavity is provided with a plurality of first reinforcing ribs extending along the length direction and recessed downward, the plurality of first reinforcing ribs are arranged at intervals along the width direction of the tray body, the second accommodating grooves are arranged in a matrix, and each first reinforcing rib horizontally penetrates a plurality of second accommodating grooves arranged along the length direction of the tray body.
[0008] As another embodiment of the utility model, a plurality of second reinforcing ribs are arranged on the first retaining edge in a downward recessed manner, the second reinforcing ribs are arranged perpendicularly to the edge of the first retaining edge and are arranged in a circumferential interval along the first retaining edge.
[0009] As another embodiment of the utility model, the cavity side wall of the accommodating cavity gradually extends outward and upward, an included angle b is formed between the cavity side wall of the accommodating cavity and the cavity bottom wall of the accommodating cavity, and 100°≤b≤120°.
[0010] As another embodiment of the utility model, the edge of the first retaining edge is connected with a first outwardly extending extension part, and the first extension part is provided with a first notch with an outward opening.
[0011] Compared with the prior art, the tray for electronic products of the utility model, by arranging the second accommodating groove on the groove bottom wall of the first accommodating groove, and making the first accommodating groove and the second accommodating groove respectively adapt to electronic products of different sizes, so that the same tray body can be used for containing electronic products of different specifications, the interchangeability and utilization rate of the tray are improved. Meanwhile, by arranging the first retaining edge in an inclined manner, the upper tray body can be accurately placed above the lower tray body when the tray bodies are stacked, the deformation of the first retaining edge caused by gravity is avoided, the mutual clamping of the tray bodies is avoided, the subsequent automatic adsorption of the tray by the automatic device is ensured, and the efficiency of automatic production is improved.
[0012] In the second aspect, the utility model embodiment further provides a kind of blowing tool, including the tray for electronic products described above and the cover plate that is combined above the tray for electronic products, and cover plate is provided with and corresponds with the blowing hole of second accommodating groove in the blowing hole of second accommodating groove.
[0013] The utility model provides a kind of blowing tool, which has the following beneficial effects compared with the prior art: by combining the cover plate above the tray for electronic products, the blowing hole on the cover plate corresponds with the second accommodating groove on the tray body, and the upper surface of the electronic product in the second accommodating groove is blown by the air gun on one side of the cover plate to the blowing hole, which can effectively remove the impurities attached to the surface of the electronic product and improve the cleanliness of the product surface. At the same time, the blowing tool can reliably fix the electronic product, ensure that the electronic product does not shift during the blowing process, and improve the safety of the electronic product during the blowing process.
[0014] As another embodiment of the utility model, the upper surface of the cover plate is provided with an inner recessed pressing groove, the pressing groove is arranged one by one above the first accommodating groove, and the blowing hole is arranged on the groove bottom wall of the pressing groove.
[0015] As another embodiment of the utility model, the outer periphery of the cover plate is provided with a second retaining edge extending in the circumferential direction, and the second retaining edge extends obliquely downward and outward.
[0016] As another embodiment of the utility model, the edge of the second retaining edge is connected with a second extension part extending horizontally and outward, and the second extension part is provided with a second notch opening outward, and the second notch is arranged alternately with the first notch. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or prior art description will be briefly introduced below, and obviously, the drawings in the following description can only be some embodiments of the present application, and other drawings can also be obtained according to these drawings without creative labor for those skilled in the art.
[0018] Figure 1 The structure schematic diagram of the tray for electronic product provided by the embodiment of the utility model is shown in the figure.
[0019] Figure 2 The cross-sectional structure schematic diagram of the tray for electronic product provided by the embodiment of the utility model is shown in the figure.
[0020] Figure 3 The partial enlarged structure schematic diagram in the embodiment of the utility model Figure 2 is shown in the figure.
[0021] Figure 4 The structure schematic diagram of the blowing tool provided by the embodiment of the utility model is shown in the figure.
[0022] Figure 5 The cross-sectional structure schematic diagram of the blowing tool provided by the embodiment of the utility model is shown in the figure.
[0023] Figure 6 The partial enlarged structure schematic diagram in the embodiment of the utility model Figure 5 is shown in the figure.
[0024] Figure 7 The structure schematic diagram of the cover plate provided by the embodiment of the utility model is shown in the figure.
[0025] In the figure, various reference signs are as follows:
[0026] 1, disc body; 11, containing cavity; 12, first containing groove; 13, second containing groove; 14, first retaining edge; 15, first reinforcing rib; 16, second reinforcing rib; 17, first extension part; 171, first notch; 2, cover plate; 21, blowing through hole; 22, pressing groove; 23, second retaining edge; 24, second extension part; 241, second notch; 10, electronic product. DETAILED DESCRIPTION
[0027] In order to make the technical problems, technical solutions and beneficial effects of the utility model to be solved clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.
[0028] It should be noted that when an element is referred to as "disposed on" another element, it can be directly on the other element or indirectly on the other element. It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. The terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or several features. In the description of the present application, the meaning of "a plurality of", "several" is two or more, unless otherwise explicitly specified.
[0029] Please refer to Figures 1 to 7 , now the tray for electronic products provided by the utility model will be described. The tray for electronic products, comprising a disc body 1, the upper surface of the disc body 1 has a concave accommodating cavity 11, a plurality of first accommodating grooves 12 are arranged on the cavity bottom wall of the accommodating cavity 11, a second accommodating groove 13 is arranged on the groove bottom wall of the first accommodating groove 12, and the outer periphery of the disc body 1 is provided with a first retaining edge 14 extending gradually outward and downward.
[0030] The tray for electronic products provided by the embodiment compared with the prior art, by arranging the second accommodating groove 13 on the groove bottom wall of the first accommodating groove 12, and making the first accommodating groove 12 and the second accommodating groove 13 respectively adapt to electronic products 10 of different sizes, so that the same disc body 1 can be used to hold electronic products 10 of various specifications, improving the interchangeability and utilization rate of the tray. At the same time, through the inclined arrangement of the first retaining edge 14, the upper disc body 1 can be guided to be accurately placed above the lower disc body 1 when the disc bodies 1 are stacked, avoiding the deformation of the first retaining edge 14 due to gravity, and the mutual jamming of the disc bodies 1, ensuring the subsequent adsorption action of the automatic device on the tray, which helps to improve the efficiency of automatic production.
[0031] In the embodiment, the accommodating area of the second accommodating groove 13 is smaller than the accommodating area of the first accommodating groove 12, that is, the first accommodating groove 12 is used for accommodating the electronic product 10 with a larger size, the second accommodating groove 13 is used for accommodating the electronic product 10 with a relatively smaller size, or the first accommodating groove 12 and the second accommodating groove 13 are used for accommodating the electronic product 10 with a stepped structure at the same time. The inclination angle of the first retaining edge 14 can be optimized and adjusted according to the actual use scene, the material and the bearing weight of the tray and the like.
[0032] As a specific embodiment of the tray for electronic products provided by the utility model, referring to Figure 3 , the first retaining edge 14 and the upper surface of the disc body 1 form an included angle a, 100°≤a≤120°.
[0033] In the embodiment, the included angle a is preferably 120°. Through the setting of the included angle a, the first retaining edge 14 forms an outwardly inclined inclined surface. When the disc bodies 1 are stacked in layers, the first retaining edge 14 of the upper disc body 1 is overlapped above the first retaining edge 14 of the lower disc body 1, and the edge is not easy to be stuck to each other, so that the separation between the disc bodies 1 is facilitated.
[0034] As a specific embodiment of the tray for electronic products provided by the utility model, referring to Figure 1 , the horizontal projection of the disc body 1 is a rectangle, the accommodating cavity 11 is provided with a plurality of first reinforcing ribs 15 extending along the length direction and arranged downwardly, the plurality of first reinforcing ribs 15 are arranged in the width direction of the disc body 1 at intervals, the second accommodating groove 13 is arranged in a matrix, and each first reinforcing rib 15 horizontally penetrates a plurality of second accommodating grooves 13 arranged in the length direction of the disc body 1.
[0035] In the embodiment, the disc body 1 is a rectangular member, the accommodating cavity 11 is a rectangular cavity arranged on the upper surface of the disc body 1, and the first accommodating groove 12 and the second accommodating groove 13 are arranged in a rectangular array on the cavity bottom wall of the accommodating cavity 11. The first reinforcing rib 15 extends along the length direction of the disc body 1 and penetrates a plurality of first accommodating grooves 12 and second accommodating grooves 13 arranged in the length direction of the disc body 1, so as to ensure the overall strength of the disc body 1, prevent the disc body 1 from being deformed, ensure the safety of transportation, and facilitate the subsequent automatic tray arranging machine to arrange the disc.
[0036] It should be noted that the tray for electronic products is made of polystyrene, polyvinyl chloride and other thermoplastic materials, and is made by using a plastic suction process. The plastic suction process is to heat the thermoplastic plastic plate to a softened state, and then through vacuum suction or positive pressure forming, the softened plastic plate is attached to the surface of the mold, and after cooling, the product is formed. The plastic suction process can ensure that the tray for electronic products has good smoothness and no burr problem, ensuring the safety of the electronic product 10. The setting of the first reinforcing rib 15 recess is also determined based on the above manufacturing process. In addition, the four corners of the second accommodating groove 13 are circularly arc transitioned, which is determined by the mold in the manufacturing process, and the above setting can also facilitate the taking and placing of the electronic product 10. Similarly, the four corners of the first accommodating groove 12 can also be provided in the form of circular arc transition as the second accommodating groove 13.
[0037] As a specific embodiment of the tray for electronic products provided by the utility model, referring to Figure 2 , the first retaining edge 14 is provided with a plurality of second reinforcing ribs 16 arranged downwardly and recessed, and the second reinforcing ribs 16 are arranged perpendicularly to the edge of the first retaining edge 14 and are arranged in a circumferential direction of the first retaining edge 14.
[0038] In the embodiment, the second reinforcing rib 16 is also recessed like the first reinforcing rib 15, and the second reinforcing rib 16 can increase the strength of the first retaining edge 14, so that the first retaining edge 14 is not easy to deform. The setting of the second reinforcing rib 16 also facilitates the operator to hold the first retaining edge 14 to take and place the tray body 1.
[0039] As a specific embodiment of the tray for electronic products provided by the utility model, referring to Figure 3 , the cavity side wall of the accommodating cavity 11 gradually extends outward and upward, and an included angle b is formed between the cavity side wall of the accommodating cavity 11 and the cavity bottom wall of the accommodating cavity 11, and 100°≤b≤120°.
[0040] In the embodiment, the included angle b is preferably 120°. Through the setting of the included angle b, the cavity side wall of the accommodating cavity 11 is an inclined surface, and when a plurality of tray bodies 1 are stacked in layers, the cavity side wall of the accommodating cavity 11 of the lower tray body 1 can guide the upper tray body 1 into the accommodating cavity 11 of the lower tray body 1, so that the cavity side wall of the accommodating cavity 11 of the lower tray body 1 can support the upper tray body 1, preventing the upper tray body 1 from pressing the electronic product 10 in the lower tray body 1.
[0041] As a specific embodiment of the tray for electronic products provided by the utility model, referring to Figure 1 and Figure 3 , the edge of the first retaining edge 14 is connected with a first extension part 17 extending horizontally and outward, and the first extension part 17 is provided with a first notch 171 with an opening outward.
[0042] In the embodiment, when the plurality of disc bodies 1 are stacked, a certain gap can be reserved between the first extension portions 17 of the two disc bodies 1 adjacent to each other, so that the disc bodies 1 stacked in the up-down direction can be separated and picked up by the manipulator or the operator conveniently. The first notch 171 is arranged to facilitate the reliable holding of the disc body 1 by the palm of the operator.
[0043] Based on the same inventive concept, referring to Figure 4 The embodiment of the present application also provides a blowing tool, which comprises the tray for electronic products and a cover plate 2 covering the tray for electronic products, and a blowing hole 21 is arranged through the cover plate 2 and corresponds to the second accommodating groove 13 in the up-down direction.
[0044] Compared with the prior art, the blowing tool provided by the embodiment covers the tray for electronic products by the cover plate 2, so that the blowing hole 21 on the cover plate 2 corresponds to the second accommodating groove 13 on the disc body 1 in the up-down direction, and the gas gun blows air to the blowing hole 21 on one side of the cover plate 2, so that the upper surface of the electronic product 10 in the second accommodating groove 13 can be blown conveniently, the impurities adhered to the surface of the electronic product 10 can be removed effectively, and the cleanliness of the surface of the product is improved. Meanwhile, the blowing tool can ensure the reliable fixing of the electronic product 10, so that the electronic product 10 cannot be displaced during the blowing process, and the safety of the electronic product 10 during the blowing process is improved.
[0045] It should be noted that the cleaning of the electronic product 10 in the prior art is mainly performed by using alcohol cleaning or plasma cleaning, and a small part of the electronic product 10 is cleaned by using the blowing equipment, and the electronic product 10 is fixed by using the vacuum adsorption or other methods. The above-mentioned methods are relatively complicated, and the cleaning efficiency of the electronic product 10 is affected.
[0046] In the embodiment, one disc body 1 containing the electronic product 10 is taken out from the stacked disc bodies 1, the cover plate 2 is covered on the disc body 1, the blowing hole 21 corresponds to the second accommodating groove 13 in the up-down direction, so that the upper surface of the electronic product 10 in the second accommodating groove 13 is exposed, and the electronic product 10 can be fixed effectively by covering the cover plate 2, at this moment, the gas gun blows air to the surface of the exposed electronic product 10 on one side of the cover plate 2, the dust and other impurities on the surface of the electronic product 10 can be removed effectively by the blowing of the gas gun, and the normal processing of the electronic product 10 in the subsequent process is ensured.
[0047] The electronic product 10 located in the disc body 1 is blown by the blowing tool, and the operation is simple and convenient, the whole process is clear and easy to master, no complex preparation or special operation skills are needed, the cover plate 2 and the disc body 1 are matched to uniformly blow the plurality of electronic products 10 contained in the disc body 1, the surface cleaning of the plurality of electronic products 10 is completed at one time, the operation time is saved, the blowing efficiency is improved, and the production process is accelerated.
[0048] As a specific embodiment of the blowing tool provided by the utility model, referring to Figure 6 and Figure 7 , the upper surface of the cover plate 2 is provided with an inner concave pressing groove 22, the pressing groove 22 is arranged one by one in correspondence with the first containing groove 12, and the blowing through hole 21 is arranged on the groove bottom wall of the pressing groove 22.
[0049] In the embodiment, the shape of the cover plate 2 is the same as that of the disc body 1, and when processing, the disc body 1 can be uniformly processed according to the structure of the disc body 1, then the second containing groove 13 on the disc body 1 is hollowed out to obtain the cover plate 2 in the embodiment, and the manufacturing process of the cover plate 2 mold is omitted, and the processing cost is saved. When the cover plate 2 is covered above the disc body 1, the bottom wall of the pressing groove 22 is used for pressing on the electronic product 10, so that the electronic product 10 is effectively fixed.
[0050] As a specific embodiment of the blowing tool provided by the utility model, referring to Figure 6 and Figure 7 , the outer periphery of the cover plate 2 is provided with a second flange 23 extending in the circumferential direction, and the second flange 23 extends outward and downward at an inclination.
[0051] In the embodiment, the inclination angle of the second flange 23 is the same as that of the second flange 23, and both are 120°. When the cover plate 2 is covered above the disc body 1, the second flange 23 can be overlapped above the first flange 14, and in the blowing process, the air gun will apply a pressure to the cover plate 2 to adhere to one side of the disc body 1, the inclination of the second flange 23 makes the cover plate 2 not easy to be stuck with the disc body 1, and the cover plate 2 and the disc body 1 are separated after the blowing is completed.
[0052] As a specific embodiment of the blowing tool provided by the utility model, referring to Figure 4 , Figure 6 and Figure 7 , the edge of the second flange 23 is connected with a second extension part 24 extending horizontally outward, the second extension part 24 is provided with a second notch 241 opening outward, and the second notch 241 is arranged staggered with the first notch 171.
[0053] In the embodiment, the second extension part 24 is arranged to facilitate the picking operation of the cover plate 2 by the manipulator or the operator. The second aperture 241 on the second extension part 24 is staggered with the first aperture 171 on the first extension part 17, the first extension part 17 can be exposed from the second aperture 241 from above, and the second extension part 24 can be exposed from the first aperture 171 from below, so that the manipulator or the operator can directly grasp the disc body 1 from the second aperture 241 from top to bottom, or directly grasp the cover plate 2 from the first aperture 171 from bottom to top, and then facilitate the separation of the cover plate 2 and the disc body 1.
[0054] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A tray for electronic products, characterized by, The tray comprises a disc body, an upper surface of the disc body is provided with a concave accommodating cavity, a cavity bottom wall of the accommodating cavity is provided with a plurality of first accommodating grooves arranged at intervals, groove bottom walls of the first accommodating grooves are provided with second accommodating grooves, and an outer periphery of the disc body is provided with a first retaining edge extending gradually outward and downward.
2. The tray for electronic products according to claim 1, wherein An included angle a is formed between the first retaining edge and the upper surface of the disc body, and 100°≤a≤120°.
3. The tray for electronic products according to claim 1, wherein A horizontal projection of the disc body is a rectangle, the accommodating cavity is provided with a plurality of first reinforcing ribs arranged along a length direction of the accommodating cavity and concavely arranged downward, the plurality of first reinforcing ribs are arranged at intervals along a width direction of the disc body, the second accommodating grooves are arranged in a matrix, and each first reinforcing rib horizontally penetrates a plurality of second accommodating grooves arranged along the length direction of the disc body.
4. The tray for electronic products according to claim 1, wherein The first retaining edge is provided with a plurality of second reinforcing ribs concavely arranged downward, the second reinforcing ribs are arranged at intervals along a circumferential direction of the first retaining edge and are perpendicular to edges of the first retaining edge.
5. The tray for electronic products according to claim 2, wherein A cavity side wall of the accommodating cavity extends gradually outward and upward, and an included angle b is formed between the cavity side wall of the accommodating cavity and the cavity bottom wall of the accommodating cavity, and 100°≤b≤120°.
6. The tray for electronic products according to claim 1, wherein An edge of the first retaining edge is connected with a first extension part extending horizontally outward, and the first extension part is provided with a first notch opening outward.
7. A purging tool characterized by, The tray comprises a disc body, an upper surface of the disc body is provided with a concave accommodating cavity, a cavity bottom wall of the accommodating cavity is provided with a plurality of first accommodating grooves arranged at intervals, groove bottom walls of the first accommodating grooves are provided with second accommodating grooves, and an outer periphery of the disc body is provided with a first retaining edge extending gradually outward and downward.
8. A purge tool as claimed in claim 7, characterised in that, An included angle a is formed between the first retaining edge and the upper surface of the disc body, and 100°≤a≤120°.
9. A purge tool as claimed in claim 8, wherein, A horizontal projection of the disc body is a rectangle, the accommodating cavity is provided with a plurality of first reinforcing ribs arranged along a length direction of the accommodating cavity and concavely arranged downward, the plurality of first reinforcing ribs are arranged at intervals along a width direction of the disc body, the second accommodating grooves are arranged in a matrix, and each first reinforcing rib horizontally penetrates a plurality of second accommodating grooves arranged along the length direction of the disc body.
10. A purge tool as claimed in claim 9, wherein, The first retaining edge is provided with a plurality of second reinforcing ribs concavely arranged downward, the second reinforcing ribs are arranged at intervals along a circumferential direction of the first retaining edge and are perpendicular to edges of the first retaining edge. A cavity side wall of the accommodating cavity extends gradually outward and upward, and an included angle b is formed between the cavity side wall of the accommodating cavity and the cavity bottom wall of the accommodating cavity, and 100°≤b≤120°. An edge of the first retaining edge is connected with a first extension part extending horizontally outward, and the first extension part is provided with a first notch opening outward. The tray comprises a disc body, an upper surface of the disc body is provided with a concave accommodating cavity, a cavity bottom wall of the accommodating cavity is provided with a plurality of first accommodating grooves arranged at intervals, groove bottom walls of the first accommodating grooves are provided with second accommodating grooves, and an outer periphery of the disc body is provided with a first retaining edge extending gradually outward and downward. An included angle a is formed between the first retaining edge and the upper surface of the disc body, and 100°≤a≤120°. A horizontal projection of the disc body is a rectangle, the accommodating cavity is provided with a plurality of first reinforcing ribs arranged along a length direction of the accommodating cavity and concavely arranged downward, the plurality of first reinforcing ribs are arranged at intervals along a width direction of the disc body, the second accommodating grooves are arranged in a matrix, and each first reinforcing rib horizontally penetrates a plurality of second accommodating grooves arranged along the length direction of the disc body. The first retaining edge is provided with a plurality of second reinforcing ribs concavely arranged downward, the second reinforcing ribs are arranged at intervals along a circumferential direction of the first retaining edge and are perpendicular to edges of the first retaining edge. A cavity side wall of the accommodating cavity extends gradually outward and upward, and an included angle b is formed between the cavity side wall of the accommodating cavity and the cavity bottom wall of the accommodating cavity, and 100°≤b≤120°. An edge of the first retaining edge is connected with a first extension part extending horizontally outward, and the first extension part is provided with a first notch opening outward. The tray comprises a disc body, an upper surface of the disc body is provided with a concave accommodating cavity, a cavity bottom wall of the accommodating cavity is provided with a plurality of first accommodating grooves arranged at intervals, groove bottom walls of the first accommodating grooves are provided with second accommodating grooves, and an outer periphery of the disc body is provided with a first retaining edge extending gradually outward and downward. An included angle a is formed between the first retaining edge and the upper surface of the disc body, and 100°≤a≤120°. A horizontal projection of the disc body is a rectangle, the accommodating cavity is provided with a plurality of first reinforcing ribs arranged along a length direction of the accommodating cavity and concavely arranged downward, the plurality of first reinforcing ribs are arranged at intervals along a width direction of the disc body, the second accommodating grooves are arranged in a matrix, and each first reinforcing rib horizontally penetrates a plurality of second accommodating grooves arranged along the length direction of the disc body. The first retaining edge is provided with a plurality of second reinforcing ribs concavely arranged downward, the second reinforcing ribs are arranged at intervals along a circumferential direction of the first retaining edge and are perpendicular to edges of the first retaining edge. A cavity side wall of the accommodating cavity extends gradually outward and upward, and an included angle b is formed between the cavity side wall of the accommodating cavity and the cavity bottom wall of the accommodating cavity, and 100°≤b≤120°. An edge of the first retaining edge is connected with a first extension part extending horizontally outward, and the first extension part is provided with a first notch opening outward.