Funnel-shaped material grabbing structure for plate embedding and injection

Abstract

The funnel-shaped material grabbing structure comprises a buried injection part, the face, combined with an injection molding part, of the buried injection part is a face A, the face, corresponding to the face A, of the buried injection part is a face B, the face B is a punching face of the buried injection part, and when punching of the funnel-shaped material grabbing structure is carried out on the face B, punching is carried out on a needed part firstly, then a hole is stretched and bent, and an extending part is obtained; and the main area of the injection molding part is located on the face A of the injection molding part. The injection molding part has the beneficial effects that by means of the funnel-shaped material grabbing structure, under the condition that the injection molding part is thin, the material grabbing area of the inclined face is increased, and the material grabbing efficiency is improved; by means of the structure, the reverse buckling amount, contained in the injection molding part, of the embedded injection part is multiplied, so that the embedded injection part and the injection molding part achieve high bonding strength, the structure uses the physical structure principle and can be used independently or used in cooperation with other technologies, and the bonding firmness degree between the embedded injection part and the injection molding part can be effectively enhanced.

Description

[Technical field]

[0001] The invention relates to the technical field of buried injection molding, in particular to a funnel-shaped material grabbing structure for buried injection molding of a plate material. [Background technology]

[0002] In product production, it is often necessary to combine metal sheet products and plastic products together due to structural strength or structural performance. Currently, the commonly used bonding methods include bonding (hot pressing), hot melting, and embedded injection molding.

[0003] like Figure 1 The figure shows an assembly of an embedded part 20 and an injection molded part 30. The currently used joining structure is a salad hole 40 material grabbing structure. However, the thinner the embedded part 20 is, the smaller the material grabbing effect of the salad hole 40 is. When the thickness of the embedded part 20 is less than 1.0 mm, the enhanced joining strength of the salad hole 40 is very limited, so it is difficult to meet the design requirements of the product.

[0004] In view of this, it is necessary to provide a funnel-shaped material grabbing structure for plate embedding to solve the above problems. [Summary of the invention]

[0005] The technical problem to be solved by the present invention is that the structure for enhancing the bonding strength between the embedded injection molded parts and the injection molded parts is a salad hole material grabbing structure. However, the thinner the embedded injection molded parts are, the smaller the material grabbing effect of the salad hole is. When the thickness of the embedded injection molded parts is less than 1.0 mm, the enhanced bonding strength of the salad hole is very limited, so it is difficult to meet the design requirements of the product. Therefore, the present invention provides a funnel-shaped material grabbing structure for embedded injection molded parts to solve the above problem.

[0006] The solution of the present invention to solve the technical problem is: a funnel-shaped material grabbing structure for plate buried injection, comprising:

[0007] Embedded part, the surface of the embedded part combined with the injection molded part is set as surface A, and the surface corresponding to surface A is set as surface B, and surface B is the punching surface of the embedded part. When punching the funnel-shaped material grabbing structure on surface B of the embedded part, punching is first performed at the required position, and then the hole is stretched and bent to obtain the extended part;

[0008] The injection molded part is obtained by placing the punched embedded part into a mold for injection molding. The main area of ​​the injection molded part is on the A side of the embedded part.

[0009] Preferably, the holes punched on the B surface of the embedded component can be in the shape of a “I”, a “X” or a “M”.

[0010] Preferably, when the hole punched on the B surface of the embedded injection molded part is stretched and bent, the thickness at the bending position is 1 / 3 to 3 / 5 of the thickness of the embedded injection molded part according to actual needs.

[0011] Preferably, the embedded parts include but are not limited to aluminum plates, magnesium plates and other products with a thickness of less than 2.0 mm.

[0012] Preferably, the material of the injection molded part includes but is not limited to various crystalline and non-crystalline plastic materials and composite materials with added fibers.

[0013] Preferably, the funnel-shaped material grabbing structure can change the number of punching holes according to the shape of the product.

[0014] Preferably, the funnel-shaped material grabbing structure can be used alone or in conjunction with NMT (nano injection molding process).

[0015] The beneficial effect of the present invention is that, through the funnel-shaped material grabbing structure, the area of ​​the inclined material grabbing is increased when the injection molded part is relatively thin, so that the undercut amount of the embedded part contained in the injection molded part is multiplied, thereby achieving a stronger bonding strength between the embedded part and the injection molded part. This structure uses physical structural principles and can be used alone or in conjunction with other processes, and can effectively enhance the bonding reliability between the embedded part and the injection molded part.

Brief Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the combination structure of a conventional embedded injection part and an injection molded part.

[0017] Figure 2 It is a schematic structural diagram of the A surface of the embedded component in the present invention.

[0018] Figure 3 It is a schematic structural diagram of the B surface of the embedded component in the present invention.

[0019] Figure 4 yes Figure 3 Schematic diagram of the aa section.

[0020] Figure 5 It is a schematic diagram of the structure of the injection molded part after molding in the present invention.

[0021] Figure 6 It is a structural schematic diagram of a funnel-shaped material grabbing structure for plate embedding injection of the present invention. [Specific implementation method]

[0022] To further illustrate the technical means and effects adopted by the present invention, the following is a detailed description in conjunction with the embodiments of the present invention and the accompanying drawings.

[0023] The present invention provides a funnel-shaped material grabbing structure for plate buried injection, comprising:

[0024] The embedded part 20, the surface of the embedded part 20 combined with the injection molded part 30 is set as A surface 101, and the surface corresponding to the A surface 101 is set as B surface 102, and the B surface 102 is the punching surface of the embedded part 20. When the B surface 102 of the embedded part 20 is punched with a funnel-shaped material grabbing structure, in this embodiment, Figure 3 As shown in FIG. 1 , a "cross"-shaped punching hole 103 is first performed, and then the hole 103 is stretched and bent to obtain the following Figure 2 The extension 104 is shown;

[0025] The injection molded part 30 is obtained by placing the punched embedded part 20 into a mold for injection molding. The main area of ​​the injection molded part 30 is on the A surface 101 of the embedded part 20 .

[0026] When the hole 103 punched on the B surface 102 of the embedded component 20 is stretched and bent, the thickness of the bending position is 1 / 3 to 3 / 5 of the thickness of the embedded component 20 according to actual needs.

[0027] The embedded parts 20 include but are not limited to aluminum plates, magnesium plates and other products with a thickness of less than 2.0 mm.

[0028] The material of the injection molded part 30 includes but is not limited to various crystalline and non-crystalline plastic materials and composite materials with added fibers.

[0029] The funnel-shaped material grabbing structure can change the number of punching holes 103 according to the shape of the product.

[0030] Among them, the funnel-shaped material grabbing structure can be used alone or in conjunction with NMT (nano injection molding process). Compared with using this structure in conjunction with NMT, the embedded part 20 does not need to be preheated at high temperature, and the injection mold does not need to use a high-temperature mold. It can effectively avoid problems such as high-temperature deformation of the embedded part 20, timeliness of NMT, and lower stability of the high-temperature mold than the normal temperature mold.

[0031] The beneficial effect of the present invention is that the present invention increases the area of ​​the inclined surface grabbing material through the funnel-shaped material grabbing structure when the injection molded part 20 is relatively thin, so that the undercut amount of the embedded part 20 contained in the injection molded part 30 is multiplied, thereby achieving a stronger bonding strength between the embedded part 20 and the injection molded part 30. This structure uses physical structural principles and can be used alone or in conjunction with other processes. It can effectively enhance the bonding reliability between the embedded part 20 and the injection molded part 30.

[0032] It should be pointed out that the present invention is not limited to the above-mentioned implementation modes, and any simple modifications, equivalent changes and modifications made to the above-mentioned embodiments by any technician familiar with the profession based on the technical solution of the present invention fall within the protection scope of the present invention.

Claims

1. A funnel-shaped material grabbing structure for plate embedding, characterized in that: include: Embedded part, the surface of the embedded part combined with the injection molded part is set as surface A, and the surface corresponding to surface A is set as surface B, and surface B is the punching surface of the embedded part. When punching the funnel-shaped material grabbing structure on surface B of the embedded part, punching is first performed at the required position, and then the hole is stretched and bent to obtain the extended part; The injection molded part is obtained by placing the punched embedded part into a mold for injection molding. The main area of ​​the injection molded part is on the A side of the embedded part.

2. A funnel-shaped material grabbing structure for plate injection molding as claimed in claim 1, characterized in that: The holes punched on the B surface of the embedded component can be in the shape of a "I", a "X" or a "M" shape.

3. A funnel-shaped material grabbing structure for plate injection molding as claimed in claim 1, characterized in that: When the hole punched on the B surface of the embedded injection molded part is stretched and bent, the thickness at the bending position is 1 / 3 to 3 / 5 of the thickness of the embedded injection molded part according to actual needs.

4. A funnel-shaped material grabbing structure for plate injection molding as claimed in claim 1, characterized in that: The embedded parts include but are not limited to aluminum plates, magnesium plates and other products with a thickness of less than 2.0 mm.

5. The funnel-shaped material grabbing structure for plate injection molding as claimed in claim 1, characterized in that: The material of the injection molded part includes but is not limited to various crystalline and non-crystalline plastic materials and composite materials such as fiber-reinforced materials.

6. The funnel-shaped material grabbing structure for plate injection molding as claimed in claim 1, characterized in that: The funnel-shaped material grabbing structure can change the number of punching holes according to the shape of the product.

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