Sound amplification horn forming device

Abstract

The utility model discloses a loudspeaker forming device, relates to the technical field of loudspeaker shell processing dies, and aims to solve the problem that the product forming quality is influenced by surface scratch and local shrinkage deformation when an existing loudspeaker is formed. Comprising an upper male die and a lower female die, and a cavity used for machining a product is reserved between the opposite faces of the upper male die and the lower female die. A guide rod used for guiding is further arranged between the upper male die and the lower female die, an upper die plate is further arranged on the top of the upper male die, and the bottom of the lower female die is connected with a lower die plate through a lower web plate. The structural design of the upper male die and the lower female die is adopted, and SMC forming materials only need to be clustered and put into the lower female die to be laid. A supporting plate is further arranged between the lower die plate and the lower female die, an ejector pin used for ejecting the product is installed on the supporting plate, and the supporting plate is driven by an oil cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of horn housing processing molds, and particularly relates to a sound amplifying horn forming device. Background Art

[0002] At present, most traditional sound amplifying horns are made of aluminum alloy, which can be formed at one time and is easy to assemble. However, since the surface of aluminum alloy is prone to oxidation and corrosion, a protective paint film must be sprayed on its surface. The paint film is easy to fall off when being bumped, so that the aluminum alloy is extremely vulnerable to corrosion after being exposed.

[0003] Using fiberglass material can be formed at one time, with high strength, light weight, no need for painting and no fading, and also has excellent properties such as ultraviolet resistance, environmental corrosion resistance, and long service life. According to the basic structure of the horn, it is suitable for using SMC molding process. However, the difficulty in forming such products lies in preventing surface scratches and local shrinkage deformation, and even defects such as cracks caused by stress concentration at corners and the like. The key lies in the design and manufacture of the forming mold and the selection of the material formula.

[0004] Therefore, this application provides a sound amplifying horn forming device to meet the requirements. Content of the Utility Model

[0005] The purpose of this application is to provide a sound amplifying horn forming device, aiming to solve the problem that the surface scratches and local shrinkage deformation affect the forming quality of the existing horn during forming.

[0006] To achieve the above purpose, this application provides the following technical solution: A sound amplifying horn forming device includes an upper convex mold and a lower concave mold. A cavity for processing the product is left between the opposite surfaces of the upper convex mold and the lower concave mold;

[0007] A guide rod for ensuring the opening and closing die accuracy is also provided between the upper convex mold and the lower concave mold. An upper template is also provided at the top of the upper convex mold, and the bottom of the lower concave mold is connected to a lower template through a lower abdominal plate; With the structural design of the upper convex mold and the lower concave mold, the laying of the SMC molding material only needs to be put into the lower concave mold in a lump;

[0008] A support plate is also provided between the lower template and the lower concave mold. A thimble for pushing the product is installed on the support plate, and the support plate is driven by an oil cylinder.

[0009] Preferably, guide posts and support blocks are installed on the lower template. The guide posts and the support blocks pass through the support plate to support the lower concave mold. The mold is designed to open and close the mold horizontally, and the outflow direction of the excess raw material is vertical, and the forming cavity is appropriate, which is beneficial to exhaust gas and the overflow of excess raw material during forming, does not affect the product size, and is easy to remove the flash after forming.

[0010] Preferably, a reset rod is further provided on the support plate. The reset rod enables the ejector pin to operate more stably under the drive of the oil cylinder, and eject the product for demolding. A support plate and an ejector pin are arranged at the central position of the bottom of the lower female mold. The support plate is driven by the oil cylinder to drive the ejector pin to demold the product, and the ejection is balanced and does not get stuck.

[0011] Preferably, a lifting ring is further provided on the outer wall of the lower female mold, and the mold is moved through the lifting ring; a plurality of oil channels for heating and warming up the lower female mold are provided on the lower female mold. The oil channels are evenly arranged on the mold and are at an appropriate distance from the forming surface, which is beneficial to the uniformity of the mold temperature and the stability of forming.

[0012] Preferably, mounting slots are provided at the corners of the lower female mold, and guide blocks for ensuring the pressing accuracy of the mold are installed in the mounting slots. The guide blocks are slidably connected with the upper male mold. A guide rod and a guide block are arranged between the upper male mold and the lower female mold to ensure the pressing accuracy of the mold and the consistency of the product.

[0013] Preferably, a fixing component is further provided between the lower female mold and the upper male mold. The fixing component is used for limiting the lower female mold and the upper male mold when moving the device. The fixing component includes two connecting plates. One ends of the two connecting plates are respectively rotatably connected to the lower female mold and the upper male mold. Waist-shaped holes are provided at the other ends of the two connecting plates and are rotatably connected through a pin shaft.

[0014] In summary, the technical effects and advantages of the present utility model are as follows:

[0015] In the present utility model, the structural design of the upper male mold and the lower female mold is adopted. The SMC molding material only needs to be put into the lower female mold in a mass; the mold is designed to open and close transversely, and the outflow direction of the redundant raw material is vertical, and the forming cavity is appropriate, which is beneficial to exhausting gas during forming and overflowing of the redundant raw material, does not affect the product size, and the flash is easy to remove after forming.

[0016] In the present utility model, a guide rod and a guide block are arranged between the upper male mold and the lower female mold to ensure the pressing accuracy of the mold and the consistency of the product; mica plates with good heat insulation performance are arranged between the upper male mold and the lower female mold and the upper template and the lower template to reduce heat dissipation; the oil channels are evenly arranged on the mold and are at an appropriate distance from the forming surface, which is beneficial to the uniformity of the mold temperature and the stability of forming.

[0017] In the present utility model, a support plate and an ejector pin are arranged at the central position of the bottom of the lower female mold. The support plate is driven by the oil cylinder to drive the ejector pin to demold the product, and the ejection is balanced and does not get stuck. Description of the Drawings

[0018] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 Structural schematic diagram of the present utility model;

[0020] Figure 2 Exploded view of the present utility model;

[0021] Figure 3 Schematic diagram of the upper template and the upper punch of the present utility model;

[0022] Figure 4 Schematic diagram of the upper punch and the lower die of the present utility model;

[0023] Figure 5 Partial structural schematic diagram of the present utility model;

[0024] Figure 6 Product structural schematic diagram of the present utility model.

[0025] In the figure: 1. Upper template; 2. Upper punch; 3. Lower die; 4. Lower abdominal plate; 5. Oil cylinder; 6. Support plate; 7. Lower template; 8. Hoisting ring; 9. Fixing component; 10. Guide block; 11. Guide rod; 12. Product; 13. Guide post; 14. Support block; 15. Thimble; 16. Reset rod. Specific implementation manners

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than 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 efforts belong to the scope of protection of the present utility model.

[0027] Embodiment 1: Refer to Figure 1-6 An amplifying horn forming device as shown, including an upper punch 2 and a lower die 3, and a cavity for processing a product 12 is left between the facing surfaces of the upper punch 2 and the lower die 3;

[0028] A guide rod 11 for ensuring the accuracy of mold opening and closing is also provided between the upper punch 2 and the lower die 3. An upper template 1 is further provided at the top of the upper punch 2, and the bottom of the lower die 3 is connected to a lower template 7 through a lower abdominal plate 4;

[0029] A mica plate with good heat insulation performance is provided between the upper convex die 2 and the upper template 1 and the lower concave die 3 and the lower abdominal plate 4 to reduce heat dissipation.

[0030] A support plate 6 is further provided between the lower template 7 and the lower concave die 3. There are two groups of lower abdominal plates 4. The support plate 6 is located between the two groups of lower abdominal plates 4. A thimble 15 for pushing the product 12 is installed on the support plate 6. The support plate 6 is driven by an oil cylinder 5. Under the drive of the oil cylinder 5, the thimble 15 is driven by the support plate 6 to eject the product 12 for unloading.

[0031] Guide posts 13 and support blocks 14 are installed on the lower template 7. The guide posts 13 and the support blocks 14 pass through the support plate 6 to support the lower concave die 3, and the support points are located in the middle part of the lower concave die 3 to prevent the middle part of the lower concave die 3 from settling and deforming after long-term pressing.

[0032] A reset rod 16 is further provided on the support plate 6. The reset rod 16 enables the thimble 15 to eject and demold the product 12 under the drive of the oil cylinder 5.

[0033] For the convenience of transferring the mold, a lifting ring 8 is further provided on the outer wall of the lower concave die 3 to move the mold through the lifting ring 8; during the transfer process, in order to prevent the mold from opening under external force, a fixing component 9 is further provided between the lower concave die 3 and the upper convex die 2. The fixing component 9 is used to limit the lower concave die 3 and the upper convex die 2 when moving the device. The fixing component 9 includes two groups of connecting plates. One ends of the two groups of connecting plates are respectively rotatably connected to the lower concave die 3 and the upper convex die 2. Waist-shaped holes are opened at the other ends of the two groups of connecting plates and are rotatably connected by a pin shaft.

[0034] Multiple groups of oil channels for heating and warming up the lower concave die 3 are opened on the lower concave die 3. The oil channels are evenly arranged and at an appropriate distance from the forming surface, which is beneficial to the uniformity of the mold temperature and the stability of forming.

[0035] Installation slots are opened at the corners of the lower concave die 3. Guide blocks 10 for ensuring the pressing accuracy of the mold are installed in the installation slots. The guide blocks 10 are slidably connected to the upper convex die 2. The setting of the guide blocks 10 ensures the pressing accuracy of the mold and the consistency of the product 12.

[0036] Working principle of this utility model: When in use, install the mold on the mold clamping machine. First, control the mold to open. Driven by the upper template 1 and the lower template 7, separate the upper punch 2 and the lower die 3, and introduce hot oil into the oil passage to heat the mold. Place the material in the cavity between the upper punch 2 and the lower die 3. Control the mold clamping machine to close the mold. Under the action of the guide rod 11 and the guide block 10, enable the upper punch 2 and the lower die 3 of the mold to operate stably. After the product 12 is formed, control the mold clamping machine to open the mold. After the mold opening is completed, control the oil cylinder 5 to work and extend. The telescopic end of the oil cylinder 5 extends, but the telescopic end of the oil cylinder 5 is limited. When the oil cylinder 5 extends, it will cause the fixed end of the oil cylinder 5 to move towards the upper punch 2, thereby driving the support plate 6 to move and driving the ejector pin 15 to eject the product 12, and the demolding operation of the product 12 can be realized.

[0037] The electromechanical connection involved in this utility model is a common means adopted by those skilled in the art and can obtain technical inspiration through a limited number of tests, belonging to common general knowledge.

[0038] The components not described in detail in this article are prior art.

[0039] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A loudspeaker forming device, characterized in that: It comprises an upper punch (2) and a lower die (3), wherein a cavity for processing a product (12) is left between the facing surfaces of the upper punch (2) and the lower die (3); A guide rod (11) for ensuring mold opening and closing accuracy is also provided between the upper punch (2) and the lower die (3); an upper die plate (1) is also provided on the top of the upper punch (2); and a lower die plate (7) is connected to the bottom of the lower die (3) via a lower belly plate (4); A support plate (6) is further provided between the lower mold plate (7) and the lower concave mold (3), and a push pin (15) for pushing the product (12) is mounted on the support plate (6), and the support plate (6) is driven by a cylinder (5).

2. The loudspeaker forming device according to claim 1, characterized in that: A guide column (13) and a support block (14) are mounted on the lower mold plate (7); the guide column (13) and the support block (14) pass through the support plate (6) to support the lower concave mold (3).

3. The loudspeaker forming device according to claim 1, characterized in that: The support plate (6) is also provided with a reset rod (16), and the reset rod (16) enables the ejector pin (15) to operate more stably under the drive of the oil cylinder (5), thereby ejecting and demoulding the product (12).

4. The loudspeaker forming device according to claim 1, characterized in that: A hanging ring (8) is also provided on the outer wall of the lower concave die (3), and the die is moved via the hanging ring (8); and a plurality of oil passages for heating the lower concave die (3) are provided on the lower concave die (3).

5. The loudspeaker forming device according to claim 1, characterized in that: The corners of the lower concave die (3) are provided with mounting slots, in which guide blocks (10) are installed to ensure the pressing accuracy of the die, and the guide blocks (10) are slidably connected to the upper convex die (2).

6. The loudspeaker forming device according to claim 1, characterized in that: A fixing assembly (9) is also provided between the lower concave die (3) and the upper punch (2). The fixing assembly (9) is used to limit the position of the lower concave die (3) and the upper punch (2) when the device is moved. The fixing assembly (9) comprises two groups of connecting plates. One end of the two groups of connecting plates is rotatably connected to the lower concave die (3) and the upper punch (2) respectively. The other ends of the two groups of connecting plates are provided with waist-shaped holes and are rotatably connected via pins.

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