A loudspeaker mesh bottom shell injection molding device and method thereof

Abstract

This invention relates to the technical field of injection molding of speaker grille bottom shells, and particularly to an injection molding device and method for speaker grille bottom shells. The device includes a support plate with a collecting shell on its top; a moving mechanism comprising support components at both ends of the top of the support plate, with a moving component inside each support component; and an injection molding mechanism comprising fixed mold components at both ends of the top of the support plate, and a moving mold component. The moving mold component is located on the opposite side of the support components and enables quick disassembly and replacement of the lower fixed mold rings to adapt to the injection molding needs of different shaped speaker grille bottom shells. The moving mold component can move synchronously left and right and rotate 180 degrees, allowing the two lower fixed mold rings to inject alternately, significantly improving injection efficiency. A buffer can flexibly change the injection pressure according to the needs of different specifications and materials of molds, avoiding damage to the mold rings due to excessive pressure or affecting the molding quality due to insufficient pressure.

Description

Technical Field

[0001] This invention relates to the technical field of injection molding of speaker grille bottom shells, and more particularly to an injection molding apparatus and method for speaker grille bottom shells. Background Technology

[0002] As the core load-bearing component of audio equipment, the speaker grille bottom shell's molding precision, surface flatness, and structural stability directly affect the assembly precision and performance of the audio system. Therefore, it is necessary to achieve batch and high-precision molding through injection molding equipment during the production process.

[0003] Based on the technical effects of existing technologies and solutions, there are still areas that need optimization: First, the assembly and disassembly of the lower mold ring is cumbersome, making it difficult to quickly adapt to the injection molding needs of speaker grille bottom shells of different shapes and specifications, resulting in poor versatility. Secondly, the pressure is fixed during the injection molding process, and it is impossible to flexibly adjust the pressure according to the material and specifications of different molds. This can easily lead to problems such as excessive pressure damaging the mold ring and insufficient pressure causing product deformation and defects. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the above-mentioned injection molding device for the bottom shell of the speaker grille, the present invention is proposed.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution, including: A support plate, the top of which is provided with a collection shell; A moving mechanism includes support components disposed at both ends of the top of the support plate, and a moving component disposed inside the support components; The injection molding mechanism includes fixed mold assemblies disposed at both ends of the top of the support plate, and a moving mold assembly disposed on the opposite side of the support assembly.

[0007] In a preferred embodiment of the speaker grille bottom shell injection molding device of the present invention, the support assembly includes a support column fixedly connected to the top of the support plate, a limiting ring fixedly connected to the opposite side of the support column, the inner side of the limiting ring being hollow, and a connecting rod fixedly connected to the opposite side of the support column.

[0008] In a preferred embodiment of the speaker grille bottom shell injection molding device of the present invention, a threaded ring is fixedly connected to the surface of the connecting rod, and a rotating ring is provided on the right side of the threaded ring. The inner side of the rotating ring is provided with a thread that engages with the threaded ring surface, and the thread can rotate at an angle of 180 degrees.

[0009] In a preferred embodiment of the speaker grille bottom shell injection molding device of the present invention, the moving component includes a rotating groove formed on the right side of the rotating ring, a rotating shaft is slidably connected to the inner side of the rotating groove, a first push rod for transmission is fixedly connected to the right side of the rotating shaft, and the right side of the first push rod is fixedly connected to the inner side of the support column.

[0010] In a preferred embodiment of the speaker grille bottom shell injection molding device of the present invention, a limiting block is fixedly connected to both ends of the outer side of the rotating ring, and a first limiting groove is provided at both ends of the limiting ring, the first limiting groove being used to limit the limiting block.

[0011] In a preferred embodiment of the speaker grille bottom shell injection molding device of the present invention, the fixed mold assembly includes a support rod fixedly connected to both ends of the top of the support plate, a second push rod fixedly connected to the top of the support rod, and the output end of the second push rod extending through to the bottom of the support rod and being connected to an upper fixed mold ring.

[0012] As a preferred embodiment of the speaker grille bottom shell injection molding device of the present invention, the moving mold assembly includes a fixed column fixedly connected to both ends of the rotating ring, a buffer is provided on the inner side of the fixed column, an extension column is fixedly connected to the top of the buffer, the top of the extension column extends through to the top of the fixed column, a soft pad is provided at the top of the fixed column, and a lower fixed mold ring is fixedly connected to the top of the soft pad. The limiting ring has a second limiting groove at both ends in the longitudinal direction. The second limiting groove is used to limit the fixed column, the extension column and the lower mold ring.

[0013] In a preferred embodiment of the speaker grille bottom shell injection molding device of the present invention, both ends of the bottom of the lower fixed mold ring are fixedly connected with insert rods, the outer side of the insert rods is provided with slots, the bottom of the insert rods penetrates to the bottom of the fixed ring, the inner side of the fixed ring is fixedly connected to the outer side of the extension column, the inner side of the fixed ring is provided with a pull groove, the inner side of the pull groove is slidably connected with a locking rod, the end of the locking rod is engaged in the inner side of the slot, and a spring is provided on the side of the locking rod opposite to the pull groove.

[0014] The beneficial effects of this invention are: it enables quick disassembly and replacement of the lower fixed mold ring, adapts to the injection molding needs of different shaped speaker grille bottom shells, the moving mold assembly can move left and right synchronously and rotate 180 degrees, so that the two lower fixed mold rings can be injected alternately, greatly improving injection molding efficiency, and the buffer can flexibly change the injection pressure according to the needs of different specifications and materials of molds, avoiding excessive pressure from damaging the mold ring or insufficient pressure from affecting the molding quality.

[0015] In view of the problems existing in the above-mentioned injection molding method for the bottom shell of the speaker grille, the present invention is proposed.

[0016] To solve the above-mentioned technical problems, the present invention provides the following technical solution: First, the lower mold ring is disassembled and replaced using inserts, slots, and clips according to the required injection molding shape. Next, by activating the first push rod, the moving mold assembly moves left and right and rotates simultaneously, so that the two lower fixed mold rings participate in the injection molding process in turn. Subsequently, injection molding material is injected into the cavity formed by the fitted upper and lower mold rings to complete the injection molding process.

[0017] In a preferred embodiment of the injection molding method for the bottom shell of the speaker grille described in this invention, the moving component enables the moving mold component to move left and right and rotate within the support component, and the fixed mold component enables the moving mold component to perform injection molding when it moves to a suitable position.

[0018] The beneficial effects of this invention are as follows: By moving and rotating the moving mold assembly, the alternating injection of the double lower fixed mold rings is achieved, which shortens the injection interval, improves the batch injection efficiency, and ensures that the fixed mold assembly and the moving mold assembly fit together. In addition, the buffer can flexibly adjust the injection pressure according to the needs of different molds, effectively ensuring the molding accuracy of the speaker mesh bottom shell, avoiding problems such as product deformation and defects, and reducing the intensity of manual operation and the product defect rate. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 A schematic diagram of the support plate, moving mechanism, and injection molding mechanism provided by the present invention.

[0020] Figure 2 This is a disassembly diagram of the moving mechanism provided by the present invention.

[0021] Figure 3 Provided for the present invention Figure 2 A magnified view of a portion of point A in the middle.

[0022] Figure 4 A schematic diagram illustrating the fit between the connecting rod, threaded ring, and rotating ring provided by the present invention.

[0023] Figure 5 This is a schematic diagram of the disassembly of the moving mold assembly provided by the present invention.

[0024] Figure 6 This is a cross-sectional schematic diagram of the moving mold assembly provided by the present invention.

[0025] Figure 7 Provided by the present invention Figure 6 A magnified view of a portion of point B in the middle.

[0026] In the diagram: 101, support plate; 102, collecting shell; 200, moving mechanism; 201, support assembly; 201a, support column; 201b, limiting ring; 201c, connecting rod; 202, moving assembly; 202a, rotating groove; 202b, rotating shaft; 202c, first push rod; 203, threaded ring; 204, rotating ring; 205, limiting block; 206, first limiting groove; 300, injection molding mechanism; 3 01. Fixed mold assembly; 301a. Support rod; 301b. Second push rod; 301c. Upper fixed mold ring; 302. Moving mold assembly; 302a. Fixed post; 302b. Buffer; 302c. Extension post; 302d. Soft pad; 302e. Lower fixed mold ring; 302f. Second limiting groove; 303. Insert rod; 304. Slot; 305. Fixed ring; 306. Pull groove; 307. Locking rod; 308. Spring. Detailed Implementation

[0027] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "one 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 one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0030] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, 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 the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0031] Example 1 Reference Figures 1-7 This is the first embodiment of the present invention, which provides a method for injection molding the bottom shell of a speaker grille.

[0032] First, the lower mold ring 302e is disassembled and replaced according to the required injection molding shape by using the cooperation of insert rod 303, slot 304 and clamp rod 307; Next, by activating the first push rod 202c, the moving mold assembly 302 moves left and right and rotates at the same time, so that the two lower fixed mold rings 302e participate in the injection molding work in sequence. Subsequently, injection molding material is injected into the mold cavity formed by the fitted upper mold ring 301c and lower mold ring 302e to complete the injection molding process. The moving component 202 enables the moving mold component 302 to move left and right and rotate within the support component 201. The fixed mold component 301 enables the moving mold component 302 to perform injection molding when it moves to the appropriate position. The movement and rotation of the moving mold assembly 302 enables alternating injection of the double lower fixed mold rings 302e, shortening the injection interval and improving batch injection efficiency. It works in conjunction with the fixed mold assembly 301 and the moving mold assembly 302 to fit together. The buffer 302b can flexibly adjust the injection pressure according to the needs of different molds, effectively ensuring the molding accuracy of the speaker mesh bottom shell, avoiding product deformation, defects and other problems, and reducing the intensity of manual operation and the product defect rate.

[0033] Example 2 Reference Figures 1-4 This is the second embodiment of the present invention, which provides a moving mechanism 200.

[0034] A support plate 101, the top of which is provided with a collection shell 102; The moving mechanism 200 includes support components 201 disposed at both ends of the top of the support plate 101, and a moving component 202 disposed on the inner side of the support components 201. The support assembly 201 includes a support column 201a fixedly connected to the top of the support plate 101. A limiting ring 201b is fixedly connected to the opposite side of the support column 201a. The inner side of the limiting ring 201b is hollow. A connecting rod 201c is fixedly connected to the opposite side of the support column 201a. A threaded ring 203 is fixedly connected to the surface of the connecting rod 201c. A rotating ring 204 is provided on the right side of the threaded ring 203. The inner side of the rotating ring 204 is provided with a thread that engages with the threaded surface of the threaded ring 203. The thread can rotate 180 degrees. The moving component 202 includes a rotating groove 202a opened on the right side of the rotating ring 204. A rotating shaft 202b is slidably connected to the inner side of the rotating groove 202a. A first push rod 202c for transmission is fixedly connected to the right side of the rotating shaft 202b. The right side of the first push rod 202c is fixedly connected to the inner side of the support column 201a. Both lateral ends of the outer side of the rotating ring 204 are fixedly connected to a limiting block 205. The lateral ends of the limiting ring 201b are provided with a first limiting groove 206, which is used to limit the limiting block 205.

[0035] In this embodiment, the first push rod 202c is activated, which pushes the rotating shaft 202b to slide along the rotating groove 202a on the right side of the rotating ring 204. The rotating shaft 202b drives the rotating ring 204 to move. Since the inner thread of the rotating ring 204 meshes with the threaded ring 203 on the surface of the connecting rod 201c, the rotating ring 204 rotates while moving, and the rotation angle is controlled at 180 degrees. This synchronously drives the moving mold assembly 302 at both longitudinal ends of the rotating ring 204 to move and rotate. When the rotating ring 204 moves, the limiting blocks 205 at both lateral ends of its outer side slide along the first limiting groove 206 in the lateral direction of the limiting ring 201b, which plays a limiting and guiding role for the rotating ring 204, preventing the rotating ring 204 from deviating or shaking, and realizing the smooth movement and rotation of the moving mold assembly 302. This, in turn, drives the two lower fixed mold rings 302e to move alternately to the injection position, providing power and guidance for the alternating injection of the two molds, thereby improving the injection efficiency and ensuring the stability of the movement of the moving mold assembly 302.

[0036] It should be noted that when the lower mold ring 302e is on the left or right side, the injection molding operation can be performed when it is moved to the bottom of the upper mold ring 301c.

[0037] Example 3 Reference Figure 1 , Figure 2 , Figures 5-7 This is the third embodiment of the present invention, which provides an injection molding mechanism 300.

[0038] The injection molding mechanism 300 includes a fixed mold assembly 301 disposed at both ends of the top of the support plate 101, and a moving mold assembly 302 disposed on the opposite side of the support assembly 201. The fixed mold assembly 301 includes a support rod 301a fixedly connected to both ends of the top of the support plate 101. A second push rod 301b is fixedly connected to the top of the support rod 301a. The output end of the second push rod 301b extends through to the bottom of the support rod 301a and is connected to an upper fixed mold ring 301c. The moving mold assembly 302 includes a fixed column 302a fixedly connected to both ends of the rotating ring 204 in the longitudinal direction. A buffer 302b is provided on the inner side of the fixed column 302a. An extension column 302c is fixedly connected to the top of the buffer 302b. The top of the extension column 302c extends through to the top of the fixed column 302a. A soft pad 302d is provided at the top of the fixed column 302a. A lower fixed mold ring 302e is fixedly connected to the top of the soft pad 302d. The limiting ring 201b has a second limiting groove 302f at both longitudinal ends. The second limiting groove 302f is used to limit the fixed post 302a, the extension post 302c and the lower mold ring 302e. Both ends of the bottom of the lower fixed mold ring 302e are fixedly connected with insert rods 303. The outer side of the insert rod 303 is provided with a slot 304. The bottom of the insert rod 303 extends through to the bottom of the fixed ring 305. The inner side of the fixed ring 305 is fixedly connected to the outer side of the extension post 302c. The inner side of the fixed ring 305 is provided with a pull groove 306. The inner side of the pull groove 306 is slidably connected with a locking rod 307. The end of the locking rod 307 is inserted into the inner side of the slot 304. A spring 309 is provided on the side of the locking rod 307 opposite to the pull groove 306.

[0039] In this embodiment, according to the shape and size of different batches of the speaker grille bottom shell to be injected, the locking rod 307 is pulled and slid along the groove 306 on the inner side of the fixing ring 305, so that the locking rod 307 is disengaged from the slot 304 on the outer side of the insert rod 303, the spring 309 is compressed, the old lower mold ring 302e is removed, the insert rod 303 at the bottom of the new lower mold ring 302e of the appropriate specification is inserted through to the bottom of the fixing ring 305, the locking rod 307 is released, the spring 309 returns to its original position and pushes the locking rod 307 into the slot 304, thus completing the fixed installation of the lower mold ring 302e; When the moving mechanism 200 moves the moving mold assembly 302 to the injection position, the second push rod 301b is activated. The second push rod 301b pushes the upper fixed mold ring 301c downward to precisely fit with the lower fixed mold ring 302e. During the fitting process, the buffer 302b adjusts the extension and retraction amount according to the downward pressure of the second push rod 301b to change the injection pressure, so as to avoid excessive pressure damaging the mold ring or insufficient pressure affecting the molding. The soft pad 302d plays an auxiliary buffering role to reduce the collision and wear of the mold ring. After bonding is completed, injection molding material is injected into the mold cavity to complete the injection molding process.

[0040] In summary, the moving mechanism 200 and the injection mechanism 300 enable quick disassembly and replacement of the lower mold ring 302e, adapting to the injection molding requirements of different shaped speaker grille bottom shells, and also allowing for adjustment of the injection pressure.

[0041] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible without substantially departing from the novelty and advantages of the subject matter described in this application. For example, variations in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​such as temperature, pressure, etc., installation arrangements, use of materials, color, orientation, etc. For instance, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise changed, and the nature or number or position of discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure performing the function described herein, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims. Furthermore, for the purpose of providing a concise description of exemplary embodiments, not all features of the actual embodiments may be omitted, i.e., those features not relevant to the currently considered best mode for carrying out the invention, or those features not relevant to implementing the invention.

[0042] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention 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 solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A speaker grille bottom shell injection molding device, characterized in that, include: A support plate (101) is provided with a collection shell (102) on its top. The moving mechanism (200) includes support components (201) disposed at both ends of the top of the support plate (101), and a moving component (202) is disposed inside the support components (201). The injection molding mechanism (300) includes a fixed mold assembly (301) disposed at both ends of the top of the support plate (101), and a moving mold assembly (302) disposed on the opposite side of the support assembly (201).

2. The injection molding device for the bottom shell of the speaker grille according to claim 1, characterized in that: The support assembly (201) includes a support column (201a) fixedly connected to the top of the support plate (101), a limiting ring (201b) fixedly connected to the opposite side of the support column (201a), the inner side of the limiting ring (201b) being hollow, and a connecting rod (201c) fixedly connected to the opposite side of the support column (201a).

3. The injection molding device for the bottom shell of the speaker grille according to claim 2, characterized in that: A threaded ring (203) is fixedly connected to the surface of the connecting rod (201c). A rotating ring (204) is provided on the right side of the threaded ring (203). The inner side of the rotating ring (204) is provided with a thread that engages with the threaded surface of the threaded ring (203). The thread can rotate at an angle of 180 degrees.

4. The injection molding device for the bottom shell of the speaker grille according to claim 3, characterized in that: The moving component (202) includes a rotating groove (202a) opened on the right side of the rotating ring (204), a rotating shaft (202b) is slidably connected to the inner side of the rotating groove (202a), a first push rod (202c) for transmission is fixedly connected to the right side of the rotating shaft (202b), and the right side of the first push rod (202c) is fixedly connected to the inner side of the support column (201a).

5. The injection molding device for the bottom shell of the speaker grille according to claim 4, characterized in that: Both sides of the outer side of the rotating ring (204) are fixedly connected with limiting blocks (205). The two sides of the limiting ring (201b) are provided with first limiting grooves (206), which are used to limit the limiting blocks (205).

6. The injection molding device for the bottom shell of the speaker grille according to claim 5, characterized in that: The fixed mold assembly (301) includes a support rod (301a) fixedly connected to both ends of the top of the support plate (101). A second push rod (301b) is fixedly connected to the top of the support rod (301a). The output end of the second push rod (301b) extends through to the bottom of the support rod (301a) and is connected to an upper fixed mold ring (301c).

7. The injection molding device for the bottom shell of the speaker grille according to claim 6, characterized in that: The moving mold assembly (302) includes a fixed column (302a) fixedly connected to both ends of the rotating ring (204) in the longitudinal direction. A buffer (302b) is provided on the inner side of the fixed column (302a). An extension column (302c) is fixedly connected to the top of the buffer (302b). The top of the extension column (302c) extends through to the top of the fixed column (302a). A soft pad (302d) is provided at the top of the fixed column (302a). A lower fixed mold ring (302e) is fixedly connected to the top of the soft pad (302d). The limiting ring (201b) has a second limiting groove (302f) at both longitudinal ends. The second limiting groove (302f) is used to limit the fixed post (302a), the extension post (302c) and the lower mold ring (302e).

8. The injection molding device for the bottom shell of the speaker grille according to claim 7, characterized in that: Both ends of the bottom of the lower fixed mold ring (302e) are fixedly connected with insert rods (303). The outer side of the insert rod (303) is provided with a slot (304). The bottom of the insert rod (303) extends through to the bottom of the fixed ring (305). The inner side of the fixed ring (305) is fixedly connected to the outer side of the extension column (302c). The inner side of the fixed ring (305) is provided with a pull groove (306). The inner side of the pull groove (306) is slidably connected with a locking rod (307). The end of the locking rod (307) is inserted into the inner side of the slot (304). A spring (309) is provided on the side of the locking rod (307) opposite to the pull groove (306).

9. A method for injection molding the bottom shell of a speaker grille, characterized in that: The speaker grille bottom shell injection molding device according to any one of claims 1 to 8 further includes, First, the lower mold ring (302e) is disassembled and replaced according to the required injection molding shape by using the cooperation of the insert (303), slot (304) and clamp (307); Next, by activating the first push rod (202c), the moving mold assembly (302) moves left and right and rotates at the same time, so that the two lower fixed mold rings (302e) participate in the injection molding process in turn; Subsequently, injection molding material is injected into the cavity formed by the bonded upper mold ring (301c) and lower mold ring (302e) to complete the injection molding process.

10. The injection molding method for the bottom shell of the speaker grille according to claim 9, characterized in that: The moving component (202) enables the moving mold component (302) to move left and right and rotate within the support component (201). The fixed mold component (301) enables the moving mold component (302) to perform injection molding when it moves to the appropriate position.

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