Positioning assembly and method of manufacturing the same, packaging tray

Abstract

The application discloses a positioning assembly and a manufacturing method and a packaging tray thereof, and belongs to the technical field of product packaging. The positioning assembly comprises a first foam layer and a second foam layer. The top surface of the first foam layer is provided with a plurality of first limiting protrusions. The second foam layer is detachably connected to the top surface of the first foam layer. The surface of the second foam layer away from the first foam layer is provided with a plurality of first positioning grooves and a plurality of positioning holes. The plurality of first positioning grooves and the plurality of positioning holes are in one-to-one correspondence and communication. The plurality of first limiting protrusions are in one-to-one correspondence and pass through the plurality of positioning holes. The application can be used for packaging and protecting ferrite, and can also be used for packaging and protecting finished products formed by ferrite and coils, and has high utilization.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of product packaging, in particular to a positioning assembly, a manufacturing method thereof and a packaging tray. BACKGROUND

[0002] Ferrite is one of the key parts of a smart watch or other wireless charging devices, and the ferrite is prone to damage during transportation. Therefore, it is necessary to use a packaging tray to package the ferrite so as to reduce the probability of damage of the ferrite during transportation.

[0003] The packaging tray comprises a foam plate, the top surface of the foam plate is provided with a positioning groove, the positioning groove has a first limiting protrusion, the ferrite has a notch, and when the ferrite is positioned in the positioning groove, the first limiting protrusion is placed in the notch to improve the first positioning effect of the ferrite. The foam plate is directly discarded to a waste station after meeting the automatic feeding, which causes waste of resources and leads to low utilization rate of the foam plate in the prior art. In addition, the finished product of the ferrite after winding the coil is in a ring shape, and the coil covers the notch of the ferrite in the thickness direction of the ferrite, so that the foam plate for transporting the ferrite cannot be used for the first positioning and transportation of the finished product, and a new packaging tray needs to be designed to package and transport the finished product. SUMMARY

[0004] The purpose of the present application is to provide a positioning assembly, a manufacturing method thereof and a packaging tray, which can not only be used for packaging and protecting the ferrite, but also be used for packaging and protecting the finished product formed by the ferrite and the coil, and have high utilization rate.

[0005] As conceived above, the technical solution adopted by the present application is:

[0006] The positioning assembly comprises:

[0007] The first foam layer has a plurality of first limiting protrusions on the top surface thereof;

[0008] The second foam layer is detachably connected to the top surface of the first foam layer, and the surface of the second foam layer away from the first foam layer has a plurality of first positioning grooves and a plurality of positioning holes, the plurality of first positioning grooves and the plurality of positioning holes are in one-to-one correspondence and communication, and the plurality of first limiting protrusions are in one-to-one correspondence and arranged through the plurality of positioning holes.

[0009] Optionally, the second foam layer is pasted to the top surface of the first foam layer through a first adhesive layer, and the adhesion of one side of the first adhesive layer facing the second foam layer is not equal to the adhesion of one side of the first adhesive layer facing the first foam layer.

[0010] Optionally, the second foam layer comprises a first sub-layer and a second sub-layer arranged in a stack, the first sub-layer has a plurality of through holes, the through holes and the second sub-layer cooperate to form the first positioning groove, the second sub-layer is attached to the top surface of the first foam layer by a first adhesive layer, and the positioning hole penetrates the first sub-layer and the second sub-layer.

[0011] Optionally, the first sub-layer is attached to the second sub-layer by a second adhesive layer, the adhesion of the second adhesive layer is greater than or equal to the adhesion of the first adhesive layer toward the first foam layer, or the adhesion of the second adhesive layer is greater than or equal to the adhesion of the first adhesive layer toward the second foam layer, the thickness of the first sub-layer is less than the thickness of the second sub-layer, and the thickness of the second sub-layer is greater than the thickness of the first foam layer.

[0012] Optionally, the first adhesive layer is a pressure-sensitive adhesive layer or a light-sensitive adhesive layer, and the second adhesive layer is a pressure-sensitive adhesive layer or a light-sensitive adhesive layer.

[0013] Optionally, the first limiting protrusion comprises a body and a limiting portion attached to the top surface of the body, the top surface of the body is flush with the top surface of the second sub-layer, and the top surface of the limiting portion is flush with the top surface of the first sub-layer.

[0014] Optionally, the top surface of the first foam layer has two bosses arranged opposite to each other and forming a groove, the first limiting protrusion is arranged at the bottom wall of the groove, the second foam layer is embedded in the groove, the boss has a second positioning groove, and the second limiting protrusion is arranged in the second positioning groove.

[0015] A manufacturing method of the positioning assembly, for manufacturing the positioning assembly as described above, comprising the following steps:

[0016] attaching a prefabricated foam layer to the top surface of the first foam layer, the top surface of the prefabricated foam layer has a plurality of first positioning grooves;

[0017] stamping the prefabricated foam layer to form a plurality of first limiting protrusions and a second foam layer having a positioning hole.

[0018] Optionally, the step of attaching the prefabricated foam layer to the top surface of the first foam layer comprises the following steps:

[0019] integrating a first foam raw material and a second adhesive layer of the positioning assembly, and punching the first foam raw material and the second adhesive layer to obtain a first part;

[0020] integrating a second foam raw material and a first adhesive layer of the positioning assembly to obtain a second part;

[0021] The release paper attached to the first adhesive layer is torn off, and the second part is attached to the first foam layer through the first adhesive layer to form a third part;

[0022] The release paper attached to the second adhesive layer is torn off, and the first part is attached to the third part through the second adhesive layer to form a prefabricated foam layer;

[0023] After the prefabricated foam layer is subjected to a stamping process, the third part of the prefabricated foam layer is pre-stamped to form a pre-stamping line, one side of the pre-stamping line is the second foam layer, and the other side of the pre-stamping line is a boss of the first foam layer, and the second foam layer can be peeled off from the prefabricated foam layer through the pre-stamping line.

[0024] The packaging tray comprises a hard bottom layer and the positioning assembly, and the bottom surface of the first foam layer is attached to the hard bottom layer through a third adhesive layer.

[0025] The positioning assembly provided by the present application has the following beneficial effects:

[0026] The positioning assembly and the manufacturing method thereof and the packaging tray provided by the present application have the following beneficial effects: the first foam layer and the second foam layer are detachably connected, so that the first foam layer and the second foam layer have a connected state and a separated state; when the first foam layer and the second foam layer are in the connected state, the first limiting protrusion on the first foam layer can be located in the positioning hole, so that the positioning assembly can be used for positioning and protecting the ferrite; when the first foam layer and the second foam layer are in the separated state, the second foam layer can be used for positioning and protecting the finished product obtained after the ferrite is wound with a coil, the positioning assembly has multiple uses, has high utilization, reduces waste of resources, and saves packaging cost and transportation cost of the ferrite and the finished product obtained after the ferrite is wound with a coil. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structural schematic diagram of the positioning assembly provided by the first embodiment of the present application;

[0028] Figure 2 is an exploded schematic diagram of the positioning assembly provided by the first embodiment of the present application;

[0029] Figure 3 is a structural schematic diagram of the first limiting protrusion provided by the first embodiment of the present application;

[0030] Figure 4 is a structural schematic diagram of the second foam layer provided by the first embodiment of the present application;

[0031] Figure 5 is a sectional schematic diagram of the positioning assembly provided by the first embodiment of the present application; Figure 1 ;

[0032] Figure 6is the present application Figure 5 is an enlarged schematic view at A shown in FIG. 1;

[0033] Figure 7 is a cross-sectional schematic view of the positioning assembly provided by the first embodiment of the present application. Figure 2

[0034] Figure 8 is a partial flow chart of the manufacturing method of the positioning assembly provided by the second embodiment of the present application.

[0035] in the drawings:

[0036] 1, first foam layer; 11, first limiting protrusion; 111, body; 112, limiting part; 12, boss; 13, groove; 14, second positioning groove; 15, second limiting protrusion; 2, second foam layer; 201, first sub-layer; 202, second sub-layer; 21, first positioning groove; 22, positioning hole; 3, first glue layer; 4, second glue layer; 10, hard bottom layer; 20, third glue layer. DETAILED DESCRIPTION

[0037] In order to make the technical problems solved by the present application, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the present application will be further described below in conjunction with the accompanying drawings and through specific embodiments. It can be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application. In addition, it should be noted that, for the convenience of description, only the parts related to the present application are shown in the drawings, not all.

[0038] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0039] In the description of the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0040] ​In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "over" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The first feature "under", "below" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0041] In the description of the present embodiment, the terms "upper", "lower", "right", "left", and other orientation or position relationships are based on the orientation or position relationships shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the devices or elements 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. In addition, the terms "first" and "second" are only used to distinguish in the description and do not have special meanings.

[0042] Embodiment one

[0043] The present embodiment provides a positioning assembly which can not only be used for packaging and protecting ferrite, but also can be used for packaging and protecting finished products formed by ferrite and coils, and has high utilization.

[0044] As shown in Figure 1 and Figure 2 , the positioning assembly comprises a first foam layer 1 and a second foam layer 2.

[0045] The top surface of the first foam layer 1 has a plurality of first limiting protrusions 11, and the plurality of first limiting protrusions 11 are arranged at intervals, and each first limiting protrusion 11 is fixed on the top surface of the first foam layer 1. In some embodiments, the plurality of first limiting protrusions 11 are arranged in an array.

[0046] The second foam layer 2 is detachably connected to the top surface of the first foam layer 1, so that the second foam layer 2 and the first foam layer 1 can have a connected state and a separated state. The surface of the second foam layer 2 away from the first foam layer 1 has a plurality of first positioning grooves 21 and a plurality of positioning holes 22, the plurality of first positioning grooves 21 and the plurality of positioning holes 22 correspond one-to-one, and each first positioning groove 21 is communicated with the corresponding positioning hole 22, the first positioning groove 21 is used for positioning the ferrite, in some embodiments, the shape of the first positioning groove 21 is the same as the shape of the ferrite, and the size of the first positioning groove 21 is substantially the same as the size of the ferrite, so that the ferrite can be located in the first positioning groove 21. The plurality of positioning holes 22 correspond to the plurality of first limiting protrusions 11 one-to-one, and each first limiting protrusion 11 is arranged through the corresponding positioning hole 22, that is, the first limiting protrusion 11 has a part located in the first positioning groove 21. The first limiting protrusion 11 is used to be placed in the notch of the ferrite to assist the first positioning groove 21 to better position the ferrite.

[0047] The positioning assembly provided by the embodiment can be used for positioning the ferrite when in use. Specifically, when the second foam layer 2 is in the connected state with the first foam layer 1, a part of the first limiting protrusion 11 is located in the first positioning groove 21, the ferrite is positioned in the first positioning groove 21, and a part of the first limiting protrusion 11 is filled in the notch of the ferrite, thereby preventing the ferrite from shaking in the first positioning groove 21, and achieving the protection of the ferrite. The positioning assembly provided by the embodiment can also be used for positioning the finished product obtained after the ferrite winding coil. Specifically, the second foam layer 2 is separated from the first foam layer 1, and in the process of separation, the first limiting protrusion 11 is retained on the first foam layer 1 and will not move with the second foam layer 2, so that there is no first limiting protrusion 11 in the positioning hole of the second foam layer 2, thereby the finished product can be positioned in the first positioning groove 21, and the protection of the finished product is achieved.

[0048] The positioning assembly provided by the embodiment is detachably connected with the first foam layer 1 and the second foam layer 2, so that the first foam layer 1 and the second foam layer 2 have a connected state and a separated state. When the first foam layer 1 and the second foam layer 2 are in the connected state, the first limiting protrusion 11 on the first foam layer 1 can be located in the positioning hole 22, so that the positioning assembly can be used for positioning and protecting the ferrite. When the first foam layer 1 and the second foam layer 2 are in the separated state, the second foam layer 2 can be used for positioning and protecting the finished product obtained after the ferrite winding coil, achieving the multi-use of the positioning assembly, having a high utilization rate, reducing the waste of resources, and saving the packaging cost and transportation cost of the ferrite and the finished product obtained after the ferrite winding coil.

[0049] Optionally, as Figure 7As shown, the second foam layer 2 is pasted on the top surface of the first foam layer 1 through the first adhesive layer 3, which facilitates the installation and removal of the first foam layer 1 and the second foam layer 2, and has a lower cost. In addition, the two adhesive surfaces of the first adhesive layer 3 have different adhesion, i.e., the adhesion of the surface of the first adhesive layer 3 facing the first foam layer 1 is not equal to the adhesion of the surface of the first adhesive layer 3 facing the second foam layer 2. In some embodiments, the adhesion of the surface of the first adhesive layer 3 facing the second foam layer 2 is less than the adhesion of the surface of the first adhesive layer 3 facing the first foam layer 1, so that when the second foam layer 2 is peeled off from the first foam layer 1, the first adhesive layer 3 is pasted on the first foam layer 1, but not on the bottom surface of the second foam layer 2, which facilitates the movement and placement of the second foam layer 2 on other structures. Optionally, the first adhesive layer 3 is a pressure-sensitive adhesive layer, a photosensitive adhesive layer, etc., which is not limited in the present embodiment.

[0050] Further optionally, referring to Figure 7 , the second foam layer 2 comprises a first sub-layer 201 and a second sub-layer 202 arranged in layers. The first sub-layer 201 has a plurality of through holes, each of which cooperates with the top surface of the second sub-layer 202 to form a first positioning groove 21. The second sub-layer 202 is pasted on the top surface of the first foam layer 1 through the first adhesive layer 3, and the positioning hole 22 penetrates the first sub-layer 201 and the second sub-layer 202, i.e., part of the positioning hole 22 is formed in the first sub-layer 201, and the other part is formed in the second sub-layer 202.

[0051] In some optional embodiments, as Figure 7As shown, the first sub-layer 201 is pasted on the second sub-layer 202 through the second adhesive layer 4, and when the adhesion of the first adhesive layer 3 towards the one side of the second foam layer 2 is greater than the adhesion of the first adhesive layer 3 towards the one side of the first foam layer 1, the adhesion of the second adhesive layer 4 is greater than or equal to the adhesion of the first adhesive layer 3 towards the one side of the second foam layer 2, so that when the second foam layer 2 is peeled off, the first foam layer 1 can be smoothly separated from the first adhesive layer 3, so that the first adhesive layer 3 is pasted on the second sub-layer 202, facilitating the smooth separation of the first foam layer 1 and the second foam layer 2, and the second sub-layer 202 will not be separated from the first sub-layer 201, so that the first sub-layer 201 and the second sub-layer 202 will not be separated, but the second sub-layer 202 and the first foam layer 1 have not been separated, so as to ensure that the second sub-layer 202 and the first foam layer 1 can be smoothly separated. When the adhesion of the first adhesive layer 3 towards the one side of the second foam layer 2 is less than the adhesion of the first adhesive layer 3 towards the one side of the first foam layer 1, the adhesion of the second adhesive layer 4 is greater than or equal to the adhesion of the first adhesive layer 3 towards the one side of the first foam layer 1, so that when the second foam layer 2 is peeled off, the second sub-layer 202 and the first adhesive layer 3 are smoothly separated, and then the second foam layer 2 and the first foam layer 1 are smoothly separated, and the second sub-layer 202 will not be separated from the first sub-layer 201, so that the first sub-layer 201 and the second sub-layer 202 will not be separated, but the second sub-layer 202 and the first foam layer 1 have not been separated, so as to ensure that the second sub-layer 202 and the first foam layer 1 can be smoothly separated. It should be noted that the adhesion of the two adhesive surfaces of the second adhesive layer 4 is the same. Alternatively, the second adhesive layer 4 is a pressure-sensitive adhesive layer, a photosensitive adhesive layer or other materials, which are not limited in the present embodiment.

[0052] For example, please continue to see Figure 7 The thickness of the first sub-layer 201 is less than the thickness of the second sub-layer 202, and the thickness of the second sub-layer 202 is greater than the thickness of the first foam layer 1, that is, the second sub-layer 202 is the thickest among the first sub-layer 201, the second sub-layer 202 and the first foam layer 1, so as to better support the ferrite and provide buffer for the ferrite, thereby reducing the probability of damage to the ferrite. In some embodiments, the thickness of the first sub-layer 201 and the first foam layer 1 is 2 millimeters, and the thickness of the second sub-layer 202 is 3 millimeters.

[0053] Alternatively, please see Figure 3The first limiting protrusion 11 comprises a body 111 and a limiting portion 112 adhered to the top surface of the body 111. When the first foam layer 1 and the second foam layer 2 are in the connected state, the top surface of the body 111 is flush with the top surface of the second sub-layer 202, so that the ferrite can also be supported on the top surface of the body 111. The top surface of the limiting portion 112 is flush with the top surface of the first sub-layer 201, so that the thickness of the positioning assembly can be smaller. In the embodiment, the limiting portion 112 is used to fill in the gap of the ferrite, and the specific shape and size of the limiting portion 112 can be designed according to the shape and size of the gap of the ferrite, which is not limited in the embodiment.

[0054] In the embodiment, as shown in Figure 1 and Figure 2 , the top surface of the first foam layer 1 has two bosses 12, and the two bosses 12 are oppositely arranged and form a groove 13. In some embodiments, the two bosses 12 are arranged at the two ends of the first foam layer 1 along the length direction of the first foam layer 1, so that after the second foam layer 2 is peeled off from the first foam layer 1, the two ends of the first foam layer 1 can have a skirt (i.e. the boss 12), which facilitates fixing the first foam layer 1 by pressing the skirt during the peeling process, thereby improving the peeling efficiency and success rate. Alternatively, the boss 12 in the embodiment is adhered to the top surface of the first foam layer 1 by a colloid.

[0055] As shown in Figure 2 , a plurality of first limiting protrusions 11 are arranged on the bottom wall of the groove 13, and the second foam layer 2 is embedded in the groove 13, and the top surface of the second foam layer 2 is flush with the top surface of the boss 12. That is, the length of the first foam layer 1 is greater than the length of the second foam layer 2. Each boss 12 has a plurality of second positioning grooves 14, and each second positioning groove 14 has a second limiting protrusion 15. The second positioning groove 14 is used to position the ferrite, and the second limiting protrusion 15 is used to fill in the gap of the ferrite, so that the boss 12 can also be used to position the ferrite, thereby increasing the number of ferrites that can be positioned by the positioning assembly and improving the utilization rate of the positioning assembly.

[0056] Further optionally, the distance between the second positioning groove 14 and the first positioning groove 21 located at the edge in the length direction of the first foam layer 1 (or the length direction of the second foam layer 2) is greater than the distance between two adjacent first positioning grooves 21 in the length direction of the first foam layer 1 (or the length direction of the second foam layer 2). On the one hand, there is a larger operating space when separating the second foam layer 2, which reduces the possibility that the second foam layer 2 is torn during the separation process and the crack extends to the first positioning groove 21. On the other hand, the distance between the first positioning grooves 21 is small, which increases the density of the first positioning grooves 21 and further increases the number of ferrites that can be positioned by the positioning assembly.

[0057] The positioning assembly provided by the embodiment realizes reuse of waste resources, saves packaging cost, and can be applied to various ferrite and wireless coil product structures, and has high universality.

[0058] Embodiment two

[0059] The embodiment provides a manufacturing method of the positioning assembly, which is used for manufacturing the positioning assembly in the embodiment one, and the manufacturing method of the positioning assembly comprises the following steps:

[0060] Step one, connecting a prefabricated foam layer on the top surface of the first foam layer 1, and the top surface of the prefabricated foam layer has a plurality of first positioning grooves 21;

[0061] In step one, the prefabricated foam layer is formed in advance, and the top surface of the prefabricated foam layer has a plurality of first positioning grooves 21.

[0062] Step two, performing stamping treatment on the prefabricated foam layer, so that the prefabricated foam layer can form a plurality of first limiting protrusions 11 and a second foam layer 2 with positioning holes 22.

[0063] After the prefabricated foam layer and the first foam layer 1 are connected, the prefabricated foam layer is subjected to stamping treatment to form a plurality of first limiting protrusions 11 and a second foam layer 2. It can be seen that the first limiting protrusion 11 in the embodiment is part of the prefabricated foam layer, and the second foam layer 2 is also part of the prefabricated foam layer. The first positioning groove 21 on the top surface of the prefabricated foam layer is the first positioning groove 21 on the top surface of the second foam layer 2, and the positioning hole on the second foam layer 2 is the hole obtained after the first limiting protrusion 11 is stamped out. In some embodiments, the prefabricated foam layer can be processed on a numerical control machine tool, and the embodiment does not limit this.

[0064] The manufacturing method of the positioning assembly provided by the embodiment can detachably connect the first foam layer 1 and the second foam layer 2, so that the first foam layer 1 and the second foam layer 2 have a connected state and a separated state. When the first foam layer 1 and the second foam layer 2 are in the connected state, the first limiting protrusion 11 on the first foam layer 1 can be located in the positioning hole 22, so that the positioning assembly can be used for positioning protection of the ferrite. When the first foam layer 1 and the second foam layer 2 are in the separated state, the second foam layer 2 can be used for positioning protection of the finished product obtained after the ferrite winding coil is wound, the positioning assembly has multiple uses, has high utilization rate, reduces waste of resources, and saves packaging cost and transportation cost of the ferrite and the finished product obtained after the ferrite winding coil is wound.

[0065] Further, the prefabricated foam layer can be formed in various ways. In the embodiment, as shown in FIG. 1, step one comprises the following steps: Figure 8

[0066] ​S1, the first foam raw material and the second glue layer are integrated, and the first foam raw material and the second glue layer are punched to obtain a first part;

[0067] In step S1, the size and shape of the holes correspond to the size and shape of the ferrite when the first foam raw material and the second glue layer are punched. It should be noted that the plurality of holes are arranged in an array, and in the length direction of the first foam raw material, the distance between the first row of holes and the second row of holes and the distance between the last row of holes and the second last row of holes are consistent, and greater than the distance between other rows of holes, and the distance between other rows of holes is consistent.

[0068] S2, the second foam raw material and the first glue layer are integrated to obtain a second part;

[0069] It should be noted that in step S2, the second foam raw material is attached to the side with smaller adhesion of the first glue layer.

[0070] S3, the third foam raw material and the third glue layer are integrated to obtain a first foam layer 1;

[0071] In this embodiment, the bottom surface of the first foam layer 1 is pasted with the third glue layer, and the top surface of the first foam layer 1 does not have a glue layer. It should be noted that the size of the third foam raw material is different from that of the first foam raw material, so as to form a stepped structure, thereby providing a tear hand position, facilitating the pasting and tearing of the foam.

[0072] S4, tear off the release paper attached to the first glue layer, and integrate the second part and the first foam layer 1 through the first glue layer to obtain a third part;

[0073] In step S4, the side with greater adhesion of the first glue layer is pasted to the top surface of the first foam layer 1.

[0074] S5, tear off the release paper attached to the second glue layer, and integrate the first part and the third part through the second glue layer to obtain a prefabricated foam layer;

[0075] After the first part and the third part are pasted, the holes of the first part and the top surface of the third part cooperate to form a first positioning groove 21 and a second positioning groove 14, that is, the top surface of the prefabricated foam layer has the first positioning groove 21 and also has the second positioning groove 14.

[0076] After the prefabricated foam layer is punched, the prefabricated foam layer is pre-punched to form a pre-punching line X as shown in Figure 1 The pre-punching line X is on one side of the second foam layer 2, and the other side of the pre-punching line X is a boss 12 of the first foam layer 1. The pre-punching line X penetrates the prefabricated foam layer in the thickness direction of the prefabricated foam layer, and the second foam layer 2 can be peeled off from the prefabricated foam layer through the pre-punching line X.

[0077] After pre-punching the prefabricated foam layer, tear off the release paper of the third adhesive layer on the top surface of the first foam layer 1, then adhere the first foam layer 1 to the hard bottom layer through the third adhesive layer, and then punch the hard bottom layer. Since the size of the hard bottom layer before punching is larger than the final product, the hard bottom layer needs to be punched. The advantage of post-adhesion punching is that it can better ensure the relative position of the hard bottom layer and the first foam layer 1 to be accurate enough, and at the same time, the shape of the hard bottom layer is a roll or a large sheet when it is delivered, and we need to add a foolproof to the shape of the final product when we do the last cutting.

[0078] Embodiment three

[0079] The embodiment provides a packaging tray, characterized in that the packaging tray comprises a hard bottom layer 10 and the positioning assembly in the embodiment one. The bottom surface of the first foam layer 1 is adhered to the hard bottom layer 10 through the third adhesive layer 20. Optionally, the length and width of the hard bottom layer 10 are both larger than the corresponding sizes of the first foam layer 1.

[0080] In some embodiments, the third adhesive layer 20 is a pressed surface adhesive layer, a photosensitive adhesive layer, or the like, and the material of the hard bottom layer 10 is PET.

[0081] The packaging tray provided by the embodiment can be used not only to protect the ferrite but also to protect the finished product after the ferrite is wound with a coil, and has rich functions.

[0082] Note that the above are only the preferred embodiments of the present application and the technical principles applied. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and those skilled in the art can make various obvious changes, re-adjustments and substitutions without departing from the scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments, and can include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims

1. A positioning component, characterized in that, include: The first foam layer (1) has a plurality of first limiting protrusions (11) on its top surface; The second foam layer (2) is detachably connected to the top surface of the first foam layer (1), and the surface of the second foam layer (2) away from the first foam layer (1) has a plurality of first positioning grooves (21) and a plurality of positioning holes (22). The plurality of first positioning grooves (21) and the plurality of positioning holes (22) are connected in a one-to-one correspondence, and the plurality of first limiting protrusions (11) are corresponding to and pass through the plurality of positioning holes (22).

2. The positioning component according to claim 1, characterized in that, The second foam layer (2) is attached to the top surface of the first foam layer (1) by the first adhesive layer (3), and the adhesiveness of the first adhesive layer (3) facing the second foam layer (2) is not equal to the adhesiveness of the first adhesive layer (3) facing the first foam layer (1).

3. The positioning component according to claim 2, characterized in that, The second foam layer (2) includes a first sub-layer (201) and a second sub-layer (202) stacked together. The first sub-layer (201) has a plurality of through holes, which cooperate with the second sub-layer (202) to form the first positioning groove (21). The second sub-layer (202) is attached to the top surface of the first foam layer (1) by a first adhesive layer (3). The positioning hole (22) penetrates the first sub-layer (201) and the second sub-layer (202).

4. The positioning component according to claim 3, characterized in that, The first sublayer (201) is adhered to the second sublayer (202) by the second adhesive layer (4). The adhesiveness of the second adhesive layer (4) is greater than or equal to the adhesiveness of the first adhesive layer (3) facing the first foam layer (1), or the adhesiveness of the second adhesive layer (4) is greater than or equal to the adhesiveness of the first adhesive layer (3) facing the second foam layer (2). The thickness of the first sublayer (201) is less than the thickness of the second sublayer (202), and the thickness of the second sublayer (202) is greater than the thickness of the first foam layer (1).

5. The positioning component according to claim 4, characterized in that, The first adhesive layer (3) is a pressure-sensitive adhesive layer or a photosensitive adhesive layer, and the second adhesive layer (4) is a pressure-sensitive adhesive layer or a photosensitive adhesive layer.

6. The positioning component according to claim 3, characterized in that, The first limiting protrusion (11) includes a body (111) and a limiting part (112) adhered to the top surface of the body (111). The top surface of the body (111) is flush with the top surface of the second sub-layer (202), and the top surface of the limiting part (112) is flush with the top surface of the first sub-layer (201).

7. The positioning component according to any one of claims 1-6, characterized in that, The top surface of the first foam layer (1) has two protrusions (12), which are arranged opposite each other to form a groove (13). The first limiting protrusion (11) is provided on the bottom wall of the groove (13). The second foam layer (2) is embedded in the groove (13). The protrusion (12) has a second positioning groove (14), and the second positioning groove (14) has a second limiting protrusion (15).

8. A method for manufacturing a positioning component, used to manufacture the positioning component as described in any one of claims 1-7, characterized in that, Includes the following steps: A prefabricated foam layer is attached to the top surface of a first foam layer (1), the top surface of which has a plurality of first positioning grooves (21); The prefabricated foam layer is stamped to form a plurality of first limiting protrusions (11) and a second foam layer (2) with positioning holes (22).

9. The method for manufacturing the positioning component according to claim 8, characterized in that, The process of attaching the prefabricated foam layer to the top surface of the first foam layer (1) includes the following steps: The first foam material is bonded to the second adhesive layer (4) of the positioning component, and holes are punched in the first foam material and the second adhesive layer (4) to obtain the first part; The second foam material is bonded to the first adhesive layer (3) of the positioning component to obtain the second part; Remove the release paper attached to the first adhesive layer (3), and bond the second part to the first foam layer (1) through the first adhesive layer (3) to obtain the third part; Remove the release paper attached to the second adhesive layer (4), and bond the first part and the third part together through the second adhesive layer (4) to obtain the pre-made foam layer; After the pre-made foam layer is stamped, the third part of the pre-made foam layer is pre-stamped to form a pre-stamping line. One side of the pre-stamping line is the second foam layer (2), and the other side of the pre-stamping line is the boss (12) of the first foam layer (1). The second foam layer (2) can be peeled off from the pre-made foam layer through the pre-stamping line.

10. A packaging tray, characterized in that, Includes a rigid substrate (10) and a positioning component as described in any one of claims 1-7, wherein the bottom surface of the first foam layer (1) is adhered to the rigid substrate (10) by a third adhesive layer (20).

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