Sound box mesh enclosure hot melting mold

Abstract

The utility model relates to the field of sound equipment mesh enclosures, and discloses a sound equipment mesh enclosure hot melting mold which comprises a bottom supporting plate used for bottom supporting, the top end of the bottom supporting plate is fixedly connected with a mounting frame body, the middle of the bottom end of the mounting frame body is fixedly connected with an electric push rod, and the output end of the electric push rod is fixedly connected with a supporting frame. A lower pressing disc is fixedly connected to the bottom end of the supporting frame, heating rods are fixedly connected to the two sides of the interior of the lower pressing disc, a lower mold plate is attached to the top end of the bottom supporting plate, a mounting frame body is embedded in the inner side of the lower mold plate, and a sound box net layer is fixedly connected to the inner side of the mounting frame body; an adsorption assembly is installed on the lower side of the interior of the lower die plate and used for achieving hot melting, fixing and positioning of the mesh enclosure. According to the device, the positioning stability of the device is improved, the hot melting installation accuracy is guaranteed, the hot melting installation efficiency of the device is improved, and the production efficiency is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of speaker grilles, and more particularly to a hot melt mold for speaker grilles. Background Technology

[0002] In audio equipment, speakers are usually equipped with grilles and mesh fabric. This design has multiple functions. While providing protection, the mesh fabric can also ensure that the sound transmission is unobstructed and even further improve the sound quality by optimizing the sound wave propagation characteristics. In addition, the grille can effectively block dust and dirt from entering the speaker, preventing dust accumulation from damaging precision components such as the diaphragm and voice coil, thereby ensuring the long-term stable operation of the audio equipment and the purity of the sound quality.

[0003] To ensure convenient and stable fixing of the mesh cover, it is often fixed by hot melting. However, during the installation process, the traditional mold positioning is not firm, and the mesh cover may shift during processing, resulting in inaccurate installation position. In addition, after hot melting, the hot melt adhesive is relatively soft at high temperature and cannot be removed directly. It needs to be cooled naturally, but the cooling efficiency is slow. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a hot-melt mold for speaker grilles, thereby improving the stability of the device during positioning and increasing the efficiency of the hot-melt installation.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A hot-melt mold for a speaker grille includes a bottom support plate for bottom support. A mounting frame is fixedly connected to the top of the bottom support plate. An electric push rod is fixedly connected to the middle of the bottom end of the mounting frame. A support frame is fixedly connected to the output end of the electric push rod. A lower pressure plate is fixedly connected to the bottom end of the support frame. Heating rods are fixedly connected to both sides of the inner interior of the lower pressure plate. A lower template is attached to the top of the bottom support plate. A mounting frame is nested inside the lower template. A speaker grille layer is fixedly connected to the inner interior of the mounting frame. An adsorption assembly is installed on the lower interior of the lower template for fixing and positioning the grille during hot-melt melting. A vacuum pump is fixedly connected to the right side of the top of the bottom support plate. A transmission air pipe is fixedly connected to the output end of the vacuum pump. A connecting column is fixedly connected to the front end of the transmission air pipe. A cooling forming assembly is installed on the inner interior of the lower pressure plate to improve the production efficiency of the device.

[0007] Furthermore, the cooling molding component includes a fixed frame located inside the lower pressure plate, a cooling fan is fixedly connected inside the fixed frame, and transmission air ducts are fixedly connected to both sides of the fixed frame, with the outer sides of the transmission air ducts respectively fixedly connected to the inner sides of the lower pressure plate.

[0008] Furthermore, the adsorption assembly includes a suction ring groove located inside the lower side of the lower template, a suction installation port is provided on the right side of the lower template, and the suction installation port penetrates into the interior of the suction ring groove, the external thread of the connecting column is connected to the interior of the suction installation port, and a sealing gasket is fixedly connected to the bottom end of the mounting frame, the outer side of the sealing gasket is nested in the top of the suction ring groove.

[0009] Furthermore, multiple insert plates are uniformly fixedly connected inside the suction ring groove, and a hot melt adhesive layer is fixedly connected to the top of each insert plate. The outer surfaces of the insert plates are respectively inserted into the inside of the sealing gasket.

[0010] Furthermore, a heat transfer copper frame is fixedly connected to the bottom end of the pressure plate to ensure uniform heat transfer.

[0011] Furthermore, a plurality of positioning posts are fixedly connected to the top of the bottom support plate, and the outer sides of the positioning posts are respectively inserted into the interior of the lower template.

[0012] Furthermore, the inner side of the pressure plate is provided with multiple exhaust vents to facilitate the circulation of internal air.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, by placing the mounting frame inside the lower template and starting the air pump, the air inside the air extraction ring groove is drawn out to the outside through the transmission air pipe and connecting column, thereby creating a negative pressure environment inside the air extraction ring groove, which improves the stability of the device in positioning and ensures the accuracy of the hot melt installation.

[0015] 2. In this utility model, the cooling fan blows air into the internal cavity of the transmission duct on both sides, thereby entering the cavity inside the pressure plate and discharging it to the outside through multiple exhaust ports. This transfers the heat at the bottom to the copper frame, stabilizes and lowers the temperature to cool the hot melt adhesive layer, improves the efficiency of the device for hot melt installation, and ensures production efficiency. Attached Figure Description

[0016] Figure 1 This is an overall drawing of a hot-melt mold for a speaker grille proposed in this utility model;

[0017] Figure 2 This is an internal view of the lower pressure plate of a hot melt mold for a speaker grille proposed in this utility model;

[0018] Figure 3 This utility model provides a diagram of the lower template mechanism of a hot-melt mold for a speaker grille.

[0019] Figure 4This utility model provides a schematic diagram of the mounting frame mechanism for a hot-melt mold for a speaker grille.

[0020] Figure 5 This utility model provides a diagram of the lower pressure plate mechanism of a hot melt mold for a speaker grille.

[0021] Figure 6 This utility model presents a diagram of the bottom support plate mechanism of a hot melt mold for a speaker grille.

[0022] Legend:

[0023] 1. Bottom support plate; 2. Mounting frame; 3. Electric push rod; 4. Support frame; 5. Lower pressure plate; 6. Lower template; 7. Mounting frame; 8. Speaker grille; 9. Connecting column; 10. Air transmission pipe; 11. Air pump; 12. Fixing frame; 13. Heating rod; 14. Cooling fan; 15. Air transmission duct; 16. Insertion plate; 17. Hot melt adhesive layer; 18. Air extraction ring groove; 19. Air extraction installation port; 20. Sealing gasket; 21. Heat transfer copper frame; 22. Exhaust vent; 23. Positioning column. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Figure 1 , Figure 3 and Figure 4This utility model provides an embodiment of a speaker grille hot-melt mold, comprising a bottom support plate 1 for bottom support, a mounting frame 2 fixedly connected to the top of the bottom support plate 1, an electric push rod 3 fixedly connected to the middle of the bottom end of the mounting frame 2, a support frame 4 fixedly connected to the output end of the electric push rod 3, a lower pressure plate 5 fixedly connected to the bottom end of the support frame 4, heating rods 13 fixedly connected to both sides of the inner side of the lower pressure plate 5, a lower template 6 attached to the top of the bottom support plate 1, a mounting frame 7 nested inside the lower template 6, a speaker grille layer 8 fixedly connected to the inner side of the mounting frame 7, an adsorption component installed on the lower inner side of the lower template 6 for fixing and positioning the grille during hot melting, a vacuum pump 11 fixedly connected to the right side of the top of the bottom support plate 1, a transmission air pipe 10 fixedly connected to the output end of the vacuum pump 11, and a transmission air pipe 10 fixedly connected to the front end of the transmission air pipe 10. A connecting column 9 is fixedly connected to the lower pressure plate 5. A cooling forming component is installed on the inner side of the lower pressure plate 5 to improve the production efficiency of the device. The adsorption component includes a suction ring groove 18 located inside the lower template 6. A suction installation port 19 is opened on the right side of the lower template 6 and penetrates into the suction ring groove 18. The external thread of the connecting column 9 is connected to the inside of the suction installation port 19. A sealing gasket 20 is fixedly connected to the bottom end of the mounting frame 7. The outer part of the sealing gasket 20 is nested in the top end of the suction ring groove 18. Multiple insert plates 16 are uniformly fixedly connected inside the suction ring groove 18. A hot melt adhesive layer 17 is fixedly connected to the top end of each insert plate 16. The outer parts of the insert plates 16 are respectively inserted into the inside of the sealing gasket 20. A heat transfer copper frame 21 is fixedly connected to the bottom end of the lower pressure plate 5 to achieve uniform heat transfer. Figure 6 The top of the bottom support plate 1 is fixedly connected with multiple positioning columns 23, and the outside of the positioning columns 23 are respectively inserted into the inside of the lower template 6.

[0026] During assembly, firstly, the multiple slots at the bottom of the lower template 6 are precisely aligned and fitted onto the positioning posts 23 to achieve initial positioning and fixation. Then, the connecting post 9 is screwed into the air extraction port 19 to complete the air circuit connection. Next, the mounting frame 7 is placed inside the lower template 6, ensuring that the multiple insert plates 16 are accurately inserted into their corresponding positions on the mounting frame 7 to complete mechanical positioning. After starting the air extraction pump 11, the air is continuously extracted from the air extraction ring groove 18 through the coordinated action of the transmission air pipe 10 and the connecting post 9, in conjunction with the sealing gasket 20 and the air extraction ring groove 18. The tight fit at the top creates a stable negative pressure within the chamber, resulting in a uniform downward suction force on the mounting frame 7, ensuring precise positioning. Subsequently, the electric push rod 3 is activated, driving the lower pressure plate 5 downward through the support frame 4, so that the heat transfer copper frame 21 makes full contact with the top of the mounting frame 7. At the same time, the heating rods 13 on both sides are activated to heat the heat transfer copper frame 21, causing multiple hot melt adhesive layers 17 to melt evenly, achieving reliable hot melt fixing. This process effectively improves the positioning stability and hot melt installation accuracy of the device, ensuring the overall assembly quality.

[0027] Reference Figure 1 , Figure 2 and Figure 5 The cooling molding component includes a fixed frame 12 located inside the lower pressure plate 5. A cooling fan 14 is fixedly connected inside the fixed frame 12. Transmission air ducts 15 are fixedly connected to both sides of the fixed frame 12. The outer sides of the transmission air ducts 15 are respectively fixedly connected to the inner sides of the lower pressure plate 5. Multiple exhaust ports 22 are opened on the inner side of the lower pressure plate 5 to realize the circulation of internal air.

[0028] After the hot melt bonding is completed, the system automatically stops the operation of the heating rod 13 and starts the cooling fan 14. Under the action of the fan, the outside air flows rapidly into the two-sided transmission air ducts 15 and forms forced convection through the slots inside the pressure plate 5. The high-speed airflow quickly discharges the high-temperature gas accumulated inside the pressure plate 5 from multiple exhaust ports 22, achieving efficient heat dissipation. As the cooling fan 14 continues to operate, the temperature of the heat transfer copper frame 21 drops significantly. Thanks to the excellent thermal conductivity of the copper frame, the hot melt adhesive layer 17 is cooled quickly and evenly, thereby greatly shortening the process cycle. This efficient cooling mechanism not only ensures the reliability of the hot melt connection, but also significantly improves the installation efficiency and production cycle of the device, providing a strong guarantee for the optimization of the overall production process.

[0029] Working principle: When assembling the lower template 6 with the mounting frame 7, multiple slots at the bottom of the lower template 6 are inserted through the outside of the positioning post 23 to limit the lower template 6. The connecting post 9 is then rotated and screwed into the air extraction port 19. The mounting frame 7 is then placed inside the lower template 6, with multiple insert plates 16 inserted inside the mounting frame 7, thus completing the installation of the mounting frame 7. The air extraction pump 11 is activated, and air is extracted from the air extraction ring groove 18 to the outside through the air transmission pipe 10 and the connecting post 9. The sealing gasket 20 adheres to the top of the air extraction ring groove 18, creating a negative pressure inside the groove, which generates a downward suction force on the mounting frame 7 for positioning. At this point, the electric push rod 3 is activated, pressing the lower pressure plate 5 downwards through the support frame 4. The heat from the bottom is transferred... The copper frame 21 contacts the top of the mounting frame 7, and the heating rods 13 on both sides are activated to heat the heat transfer copper frame 21, thereby melting multiple hot melt adhesive layers 17 for hot melt fixing. After the hot melt fixing is completed, the heating rods 13 are stopped, and the cooling fan 14 is activated. External air accelerates its flow into the interior of the air ducts 15 on both sides and enters the slot inside the pressure plate 5. The accelerated airflow causes the high-temperature gas inside the pressure plate 5 to be discharged to the outside through multiple exhaust ports 22, thereby reducing the temperature inside the pressure plate 5. As the cooling fan 14 continues to cool, the temperature of the heat transfer copper frame 21 on the lower side is reduced. The heat transfer copper frame 21 has a good conduction effect, effectively cooling the hot melt adhesive layers 17 after hot melt, improving the installation efficiency of the device.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hot-melt mold for a speaker grille, characterized in that, The system includes a bottom support plate (1) for bottom support, a mounting frame (2) fixedly connected to the top of the bottom support plate (1), an electric push rod (3) fixedly connected to the middle of the bottom end of the mounting frame (2), a support frame (4) fixedly connected to the output end of the electric push rod (3), a lower pressure plate (5) fixedly connected to the bottom end of the support frame (4), heating rods (13) fixedly connected to both sides of the inner side of the lower pressure plate (5), a lower template (6) attached to the top of the bottom support plate (1), and the inner side of the lower template (6) is nested. There is an installation frame (7), and an audio mesh layer (8) is fixedly connected to the inner side of the installation frame (7). An adsorption component is installed on the lower inner side of the lower template (6) to achieve hot-melt fixed positioning of the mesh cover. An air pump (11) is fixedly connected to the top right side of the bottom support plate (1). A transmission air pipe (10) is fixedly connected to the output end of the air pump (11). A connecting column (9) is fixedly connected to the front end of the transmission air pipe (10). A cooling forming component is installed on the inner side of the lower pressure plate (5) to improve the production efficiency of the device.

2. The hot-melt mold for a speaker grille according to claim 1, characterized in that: The cooling molding assembly includes a fixed frame (12) located inside the lower pressure plate (5). A cooling fan (14) is fixedly connected inside the fixed frame (12). Transmission air ducts (15) are fixedly connected on both sides of the fixed frame (12). The outer sides of the transmission air ducts (15) are respectively fixedly connected to the inner sides of the lower pressure plate (5).

3. The hot-melt mold for a speaker grille according to claim 1, characterized in that: The adsorption assembly includes an air extraction ring groove (18) located on the lower side inside the lower template (6). An air extraction installation port (19) is provided on the right side of the lower template (6), and the air extraction installation port (19) penetrates into the interior of the air extraction ring groove (18). The external thread of the connecting column (9) is connected to the interior of the air extraction installation port (19). A sealing gasket (20) is fixedly connected to the bottom end of the mounting frame (7), and the outer part of the sealing gasket (20) is nested in the top of the air extraction ring groove (18).

4. The hot-melt mold for a speaker grille according to claim 3, characterized in that: Multiple insert plates (16) are uniformly fixedly connected inside the air extraction ring groove (18). A hot melt adhesive layer (17) is fixedly connected to the top of each insert plate (16). The outside of each insert plate (16) is inserted into the inside of the sealing gasket (20).

5. The hot-melt mold for a speaker grille according to claim 1, characterized in that: The bottom end of the pressure plate (5) is fixedly connected to a heat transfer copper frame (21) to achieve uniform heat transfer.

6. The hot-melt mold for a speaker grille according to claim 1, characterized in that: The top of the bottom support plate (1) is fixedly connected with a plurality of positioning columns (23), and the outside of the positioning columns (23) are respectively inserted into the inside of the lower template (6).

7. The hot-melt mold for a speaker grille according to claim 1, characterized in that: The inner side of the pressure plate (5) is provided with multiple exhaust vents (22) to facilitate the circulation of internal air.

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