Tool equipment for producing aluminum alloy notebook shell injection molding fixing mechanism
By incorporating an injection cavity and a vacuum system into the aluminum alloy laptop casing, and utilizing negative pressure and exhaust channels, the problem of insufficient connection strength between the plastic parts and the aluminum alloy casing is solved, achieving a firm connection between the plastic parts and the aluminum alloy casing and preventing the plastic parts from detaching.
Patent Information
- Application Number
- CN202520109657.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-17
AI Technical Summary
In the existing technology, the bonding strength between the plastic parts and the aluminum alloy shell of laptops is relatively low, which easily leads to the problem of plastic parts falling off.
The tooling equipment used to generate the injection molding fixing mechanism for aluminum alloy notebook shells, by setting an injection cavity and a vacuum system on the aluminum alloy shell, and by using negative pressure and exhaust groove design, ensures that the injection material forms a firm connection with the aluminum alloy shell after being formed in the injection cavity.
This enhances the connection strength between the plastic parts and the aluminum alloy housing, preventing the plastic parts from falling off and improving the stability and reliability of the connection.
Smart Images
Figure CN223834921U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of machinery, specifically to the aluminum-plastic combination technology for notebook computer shells. Background Technology
[0002] With the increasing popularity of laptops, today's laptops are becoming lighter, thinner, and more durable.
[0003] Laptop casings are made of metal. To address the issues of heavy weight, weak signal, and low flexibility in laptops, magnesium-aluminum alloy is commonly used for die casting or stamping. The frame structure requires the use of individual plastic parts for bonding and assembly.
[0004] The existing bonding process for plastic parts is AB glue bonding, or thermoplastic process, which involves direct thermoplastic molding on aluminum alloy shells.
[0005] AB glue bonding carries the risk of delamination and has low bonding strength. Thermoplastic processes also have the same problem of low bonding strength as AB glue, which can lead to plastic parts falling off. Utility Model Content
[0006] The purpose of this invention is to provide tooling for the injection molding and fixing mechanism of aluminum alloy notebook shells, so as to solve at least one of the above-mentioned technical problems.
[0007] The technical problem solved by this utility model can be achieved by the following technical solution:
[0008] Tooling equipment for producing an injection molding fixing mechanism for an aluminum alloy notebook casing includes a tooling table, on which the notebook casing being processed includes an aluminum alloy casing; the aluminum alloy casing is fixed on the table surface of the tooling table.
[0009] At least five cavities are provided on the aluminum alloy housing as injection cavities for the fixing mechanism;
[0010] The injection cavity is embedded in the aluminum alloy shell, with an opening at the top and an opening at the bottom;
[0011] The injection cavities are arranged in an array on the aluminum alloy shell;
[0012] The tooling table has an injection port, the height of which is higher than the opening of the injection cavity, allowing the injection material to enter the injection cavity through the opening.
[0013] The workbench surface and at least five injection cavities form a closed array of injection molding material cavities.
[0014] In the above design, an injection cavity is embedded in the aluminum alloy shell. The injection cavity has an opening at the top and an opening at the bottom. The injection port of the tooling table is located above the opening of the injection cavity. The injection port injects material into the surface of the aluminum alloy shell. The injection material flows into the cavity through the opening. After injection molding, a structural component is formed on the surface of the aluminum alloy shell and inside the injection cavity. The part inside the injection cavity cannot be separated from the opening. Thus, the plastic part formed inside the injection cavity forms a fixing mechanism. This fixing mechanism fixes the plastic part formed on the surface of the aluminum alloy shell to the aluminum alloy shell, thereby enhancing the connection strength between the plastic part and the aluminum alloy shell.
[0015] Furthermore, the tooling table has horizontal grooves that serve as exhaust channels, evenly spaced at intervals of 4 to 8 mm.
[0016] The tooling table has vertical grooves at equal intervals on its surface to facilitate air venting, with vertical intervals of 4 to 8 mm.
[0017] The groove width is 2-3mm;
[0018] The groove depth is 1-2 mm;
[0019] At least one groove passes through the sealed cavity formed by the tooling table and the injection cavity.
[0020] In the above design, the surface of the rotary table is provided with grooves that are spaced horizontally and vertically. The purpose of the grooves is to allow air to be expelled from the cavity when the injection material flows into the cavity, preventing the air from being trapped inside the cavity and thus blocking the injection material from entering the injection cavity.
[0021] Furthermore, it also includes an air extraction system, the air intake of which is located on the table surface of the tooling table;
[0022] The tooling table and the cavity array formed by at least five injection cavities are cavity arrays capable of withstanding pressures of 70 to 90 kPa.
[0023] In the above design, the tooling table is equipped with an air extraction system. The air intake of the system is located on the table surface, which can create negative pressure within the tooling table and the cavity array formed by at least five injection cavities. The purpose of the negative pressure is to help the injection molding material flow into the cavity during injection, so as to form an integral, anti-detachment gel structure with the molded plastic part.
[0024] The negative pressure in the negative pressure zone needs to be within a suitable range. If the negative pressure is too low, it will have little effect in guiding the colloid to flow into the cavity, while if the negative pressure is too high, it will cause the colloid to flow into the groove of the tooling table and block the air passage. After multiple tests, it has been verified that the negative pressure range of 70-90 kPa has the best guiding effect.
[0025] Furthermore, the groove can be either a V-shaped groove or a rectangular groove.
[0026] In the above design, the groove adopts either a V-shaped groove or a rectangular groove. The advantage of this is that V-shaped grooves and rectangular grooves are easy to process, which can reduce manufacturing costs.
[0027] Furthermore, the injection cavity can be either a cylindrical cavity or a conical cavity.
[0028] In the above design, the injection cavity is cylindrical and conical, which has the advantage of being easy to process and reducing manufacturing costs.
[0029] Furthermore, the diameter of the opening in the injection cavity is 4–6 mm.
[0030] In the above design, the injection molding material has a certain fluidity during the injection molding process, but the fluidity is poor. The aperture of the opening is smaller than the size of the injection area on the surface of the aluminum alloy shell. However, the aperture of the opening cannot be set too small, otherwise the injection molding material will have difficulty flowing into the injection cavity through the opening. Experiments have shown that the effect of the injection molding material flowing into the injection cavity is best when the aperture is set to 4-6 mm.
[0031] Furthermore, the depth of the injection cavity is 50-70% of the thickness of the aluminum alloy shell.
[0032] In the above design, the distance from the injection cavity opening to the surface of the aluminum alloy shell is shortened by controlling the ratio of the depth of the injection cavity to the thickness of the aluminum alloy shell. Shortening the opening distance is beneficial for the injection material to flow quickly into the injection cavity.
[0033] Furthermore, the diameter of the injection cavity opening is 8–10 mm.
[0034] In the above design, the diameter of the injection cavity opening is larger than the diameter of the orifice. After injection molding, the injection molded part inside the injection cavity cannot be detached through the orifice. Therefore, the injection molded part inside the injection cavity can be firmly fixed to the aluminum alloy shell.
[0035] This invention embeds a cavity within an aluminum alloy shell. The cavity has an opening at its top, located below the injection port. During injection molding, the injection material flows into the injection cavity through the opening. After injection molding, a fixing mechanism is formed within the injection cavity. The fixing mechanism and the injection molded part formed on the surface of the aluminum alloy shell are integrally formed structures. Thus, the injection molded part is connected to the surface of the aluminum alloy shell through the fixing mechanism within the injection cavity. Its beneficial effect is that it enhances the connection strength between the injection molded part and the aluminum alloy, making the injection molded part less likely to fall off. Attached Figure Description
[0036] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:
[0037] Figure 1 This is a schematic diagram of the present invention;
[0038] Figure 2 This is a schematic diagram of the structure where the injection-molded part is connected to both sides of the aluminum alloy shell.
[0039] Symbol explanation:
[0040] 1. Tooling table; 2. Aluminum alloy shell; 3. Opening; 4. Injection cavity; 5. Injection part; 6. Groove. Detailed Implementation
[0041] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0042] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0043] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.
[0044] Furthermore, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in an embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.
[0045] Reference Figure 1 , Figure 2 As shown, the tooling equipment for generating the injection molding fixing mechanism of aluminum alloy notebook shell includes a tooling table 1, and the notebook shell processed by the tooling table 1 includes an aluminum alloy shell 2; the aluminum alloy shell 2 is fixed on the table surface of the tooling table 1.
[0046] At least five cavities are provided on the aluminum alloy housing 2, serving as injection molding cavities 4 for the fixing mechanism;
[0047] The injection cavity 4 is embedded in the aluminum alloy shell 2, with an opening 3 at the top and an opening at the bottom;
[0048] The injection cavities 4 are arranged in an array on the aluminum alloy shell 2;
[0049] The tooling table 1 has an injection port, the height of which is higher than the opening 3 of the injection cavity 4, allowing the injection material to enter the injection cavity 4 through the opening 3.
[0050] The table surface of the tooling table 1 and at least five injection cavities 4 are arranged to form a closed cavity array for injection molding material.
[0051] In this embodiment, an injection cavity 4 is embedded in the aluminum alloy shell 2. The injection cavity 4 has an opening 3 at the top and an opening at the bottom. The injection port of the tooling table 1 is located above the opening 3 of the injection cavity 4. The injection port injects material into the surface of the aluminum alloy shell 2. The injection material flows into the cavity through the opening 3. After injection molding, a structural component is formed on the surface of the aluminum alloy shell 2 and inside the injection cavity 4. The part inside the injection cavity 4 cannot be separated from the opening 3. Thus, a fixing mechanism is formed by the plastic part formed inside the injection cavity 4. This fixing mechanism fixes the plastic part formed on the surface of the aluminum alloy shell 2 to the aluminum alloy shell 2, thereby enhancing the connection strength between the plastic part and the aluminum alloy shell 2.
[0052] Furthermore, the tooling table 1 has horizontal grooves 6 that serve as exhaust channels, which are evenly spaced on the table surface and are spaced 4 to 8 mm apart.
[0053] The tooling table 1 has vertical grooves 6 evenly spaced at equal intervals to serve as exhaust channels, with vertical intervals of 4 to 8 mm.
[0054] The width of groove 6 is 2-3mm;
[0055] The depth of groove 6 is 1-2mm;
[0056] At least one groove 6 passes through the sealed cavity formed by the tooling table 1 and the injection cavity 4.
[0057] In this embodiment, the surface of the rotary table is provided with grooves 6 spaced horizontally and vertically. The purpose of the grooves 6 is to discharge the air in the cavity when the injection molding material flows into the cavity, to prevent the air in the cavity from not being discharged, and thus to block the injection molding material from entering the injection cavity 4.
[0058] Furthermore, it also includes an air extraction system, the air intake of which is located on the table surface of the tooling table 1.
[0059] The table surface of the tooling table 1 and the cavity array formed by at least five injection cavities 4 are cavity arrays capable of withstanding pressures of 70 to 90 kPa.
[0060] In this embodiment, the tooling table 1 is equipped with an air extraction system. The air intake of the air extraction system is located on the table surface of the tooling table 1, which can create negative pressure within the cavity array formed by the tooling table 1 and at least five injection cavities 4. The function of the negative pressure is to help the injection molding material flow into the cavity during injection molding, so as to form an integral and anti-detachment gel structure with the molded plastic part.
[0061] The negative pressure in the negative pressure zone needs to be within a suitable range. If the negative pressure is too low, it will have little effect in guiding the colloid to flow into the cavity, while if the negative pressure is too high, it will cause the colloid to flow into the groove 6 of the tooling stage 1, blocking the air passage. After multiple tests, it has been verified that the negative pressure range of 70-90 kPa has the best guiding effect.
[0062] Furthermore, groove 6 is either a V-shaped groove or a rectangular groove.
[0063] In this embodiment, the groove 6 is either a V-shaped groove or a rectangular groove. The advantage of this is that V-shaped grooves and rectangular grooves are easy to process, which can reduce manufacturing costs.
[0064] Furthermore, the injection cavity 4 can be either a cylindrical cavity or a conical cavity.
[0065] In this embodiment, the cavity of the injection molding cavity 4 is cylindrical and conical, which has the advantage of being easy to process and reducing manufacturing costs.
[0066] Furthermore, the diameter of the opening 3 in the injection cavity 4 is 4-6 mm.
[0067] In this embodiment, the injection molding material has a certain fluidity during the injection molding process, but the fluidity is poor. The aperture of the opening 3 is smaller than the size of the injection area on the surface of the aluminum alloy shell 2. However, the aperture of the opening 3 cannot be set too small, otherwise the injection molding material will have difficulty flowing into the injection cavity 4 through the opening 3. Experiments show that the effect of the injection molding material flowing into the injection cavity 4 is best when the opening 3 is set to 4-6 mm.
[0068] Furthermore, the depth of the injection cavity 4 is 50-70% of the thickness of the aluminum alloy shell 2.
[0069] In this embodiment, the distance from the injection cavity opening 3 to the surface of the aluminum alloy shell 2 is shortened by controlling the ratio of the depth of the injection cavity 4 to the thickness of the aluminum alloy shell 2. Shortening the distance of the opening 3 is beneficial for the injection material to flow quickly into the injection cavity 4.
[0070] Furthermore, the diameter of the opening of the injection cavity 4 is 8-10 mm.
[0071] In this embodiment, the opening diameter of the injection cavity 4 is larger than the opening diameter of the hole 3. After injection molding, the injection molded part 5 in the injection cavity 4 cannot be detached through the hole 3. Therefore, the injection molded part 5 in the injection cavity 4 can be firmly fixed on the aluminum alloy shell 2.
[0072] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments may be described, i.e., those features that are not relevant to the currently considered best mode for carrying out the present invention, or those features that are not relevant to implementing the present invention.
[0073] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine task in design, manufacturing, and production without requiring extensive experimentation.
[0074] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A tooling system for producing an injection molding fixing mechanism for an aluminum alloy notebook casing, comprising a tooling table, characterized in that, The notebook casings processed by the tooling table include aluminum alloy casings; The aluminum alloy housing is fixed to the table surface of the tooling table; At least five cavities are provided on the aluminum alloy housing as injection cavities for the fixing mechanism; The injection cavity is embedded in the aluminum alloy shell, with an opening at the top and an opening at the bottom; The injection cavities are arranged in an array on the aluminum alloy shell; The tooling table has an injection port, the height of which is higher than the opening of the injection cavity, allowing the injection material to enter the injection cavity through the opening. The workbench surface and at least five injection cavities form a closed array of injection molding material cavities.
2. The tooling equipment for producing an aluminum alloy notebook shell injection molding fixing mechanism according to claim 1, characterized in that: The tooling table has horizontal grooves that serve to exhaust air at equal intervals, with a horizontal interval of 4 to 8 mm. The tooling table has vertical grooves at equal intervals on its surface to facilitate air venting, with vertical intervals of 4 to 8 mm. The groove width is 2-3mm; The groove depth is 1-2 mm; At least one groove passes through the sealed cavity formed by the tooling table and the injection cavity.
3. The tooling equipment for producing an aluminum alloy notebook shell injection molding fixing mechanism according to claim 1, characterized in that, It also includes an air extraction system, with the air intake of the air extraction system located on the table surface of the tooling table; The tooling table and the cavity array formed by at least five injection cavities are cavity arrays capable of withstanding pressures of 70 to 90 kPa.
4. The tooling equipment for producing an aluminum alloy notebook shell injection molding fixing mechanism according to claim 1, characterized in that, The groove can be either a V-shaped groove or a rectangular groove.
5. The tooling equipment for producing an aluminum alloy notebook casing injection molding fixing mechanism according to claim 1, characterized in that, The injection cavity can be either a cylindrical cavity or a conical cavity.
6. The tooling equipment for producing an aluminum alloy notebook casing injection molding fixing mechanism according to claim 1, characterized in that, The diameter of the injection cavity opening is 4–6 mm.
7. The tooling equipment for producing an aluminum alloy notebook shell injection molding fixing mechanism according to claim 1, characterized in that, The depth of the injection cavity is 50-70% of the thickness of the aluminum alloy shell.
8. The tooling equipment for producing an aluminum alloy notebook shell injection molding fixing mechanism according to claim 1, characterized in that, The diameter of the injection cavity opening is 8-10 mm.