A kind of ejection device suitable for loudspeaker mesh

Abstract

This invention relates to the field of mold ejection mechanism technology, and more particularly to an ejection device suitable for horn mesh. The device includes a template and multiple ejector pins; the multiple ejector pins are inserted into the template. The characteristic feature of this invention is that each ejector pin includes an ejector rod and an ejector head; the ejector end of the ejector rod is provided with a herringbone-shaped groove; the herringbone-shaped groove divides the lower end of the ejector rod into a first connecting part, a second connecting part, and a third connecting part; the ejector head has a herringbone shape that matches the herringbone-shaped groove structure, and the ejector head is inserted into the herringbone-shaped groove of the ejector rod, and the ejector head is fixedly connected to the ejector rod. The advantage of this invention is that it can effectively and accurately eject the horn cover, preventing ejection pits or perforations, thus improving product quality.

Description

Technical Field

[0001] This invention relates to the field of mold ejection mechanism technology, and in particular to an ejection device suitable for horn mesh openings. Background Technology

[0002] Existing ejection devices suitable for speaker mesh, such as the ejection mechanism for a speaker mesh product mold disclosed in Chinese Invention Patent (Publication No. CN203957309U), include an ejector pin, an upper fixed plate, a connecting rod, a floating plate, and a lower fixed plate. The ejector pin is fixedly connected to the upper fixed plate, the upper end of the connecting rod is fixedly connected to the upper fixed plate, and the lower end of the connecting rod is fixedly connected to the floating plate. The lower fixed plate is provided with a lower guide rod, and the floating plate is provided with a first through hole that is slidably connected to the lower guide rod. A spring is sleeved on the lower guide rod, and the spring is located between the floating plate and the lower fixed plate. Compared with the prior art, this ejection mechanism ejects both the mesh surface and other original parts simultaneously during ejection, making it less likely for the mesh surface to break, resulting in a relatively high yield and thus reducing the production cost of the product. Furthermore, the ejection of the ejector pin relies on the restoring force of the spring, resulting in more uniform force and a simpler structure. As a purely mechanical structure, it has good reliability and is less likely to break the mesh surface, further improving the product yield.

[0003] like Figure 8 and Figure 9 As shown in the figure, the existing horn cover (5) structure is provided. The horn cover (5) is provided with honeycomb-shaped horn mesh (51). The horn mesh (51) is in the shape of a regular hexagon. Three adjacent horn meshes are separated by herringbone honeycomb ribs (52). The ejector pins on the existing ejection mechanism are round or square ejector pins. The horn cover (5) is ejected by the ejector pins pressing against the center (521) of the honeycomb ribs. However, because the round ejector pins have a small diameter, they are prone to forming ejector pin pits at the center (521) of the honeycomb ribs during ejection, which affects the aesthetics and quality of the product. When ejected by square ejector pins, the square ejector pins often deviate from the position of the center (521) of the honeycomb ribs, which leads to the horn cover (5) mesh (53) being punctured, resulting in product scrap. Summary of the Invention

[0004] The present invention addresses the technical problem of ejecting and piercing the speaker cover by pushing it out of the recess. It provides an ejection device suitable for speaker mesh holes. This device, by matching the ejector pin with the herringbone honeycomb ribs, can accurately and effectively eject the speaker cover, thereby improving ejection efficiency and the quality of the ejected product.

[0005] To achieve the objectives of this invention, the following technical solutions are adopted:

[0006] An ejector device suitable for speaker grille mesh, the device comprising a template and multiple ejector pins; the multiple ejector pins are inserted into the template, characterized in that each ejector pin comprises an ejector rod and an ejector head; the ejector end of the ejector rod is provided with a herringbone-shaped groove; the herringbone-shaped groove divides the lower end of the ejector rod into a first connecting part, a second connecting part, and a third connecting part; the ejector head has a herringbone shape that matches the herringbone-shaped groove structure, the ejector head is inserted into the herringbone-shaped groove of the ejector rod, and the ejector head is fixedly connected to the ejector rod.

[0007] Preferably, the top head includes a first side, a second side, and a third side; the included angle between any two adjacent sides is the same, and the lengths of the first side, the second side, and the third side are equal; and a fixing through hole is provided on the first side, the second side, and the third side respectively.

[0008] Preferably, the top rod is cylindrical, and the first connecting part, the second connecting part and the third connecting part are arranged in three equal parts and have the same structure, with the inner side of the first connecting part being arc-shaped.

[0009] Preferably, the first connecting portion is provided with a first connecting through hole and a second connecting through hole that extend laterally; the first connecting through hole and the second connecting through hole are aligned longitudinally, and the first connecting through hole is located above the second connecting through hole; the second connecting portion is provided with a third connecting through hole and a fourth connecting through hole that extend laterally; the third connecting through hole and the fourth connecting through hole are aligned longitudinally, and the third connecting through hole is located above the fourth connecting through hole; the third connecting portion is provided with a fifth connecting through hole and a sixth connecting through hole that extend laterally; the fifth connecting through hole and the sixth connecting through hole are aligned longitudinally, and the fifth connecting through hole is located above the sixth connecting through hole.

[0010] Preferably, the first connecting through hole and the fourth connecting through hole are laterally aligned, and the first side is fixed to the top rod by passing through the fixing through hole on the first side with a first fixing member; the second connecting through hole and the sixth connecting through hole are laterally aligned, and the second side is fixed to the top rod by passing through the fixing through hole on the second side with a second fixing member; the third connecting through hole and the fifth connecting through hole are laterally aligned, and the third side is fixed to the top rod by passing through the fixing through hole on the third side with a third fixing member.

[0011] Preferably, the template is provided with multiple ejector pin modules, each ejector pin module is provided with a cover plate mounting groove, and the cover plate mounting groove is provided with multiple ejector pin mounting stepped holes; the upper end of the ejector rod is provided with a limiting protrusion for preventing the ejector rod from sliding out, the ejector rod passes through the ejector pin mounting stepped hole, and the limiting protrusion is limited on the ejector rod mounting stepped hole.

[0012] Preferably, the cover plate mounting groove is provided with a pin fixing cover plate for pressing and fixing multiple pins.

[0013] Preferably, the push rod and the push head are integrally formed.

[0014] An ejection device for speaker grilles, employing the above-mentioned technical solution, facilitates the simultaneous ejection of multiple speaker grilles using multiple ejector pin modules, thereby improving production efficiency. A cover plate mounting slot allows for easy installation and fixation of the ejector pins, preventing loosening. An ejector pin fixing cover plate secures multiple ejector pins, preventing loosening during ejection. A herringbone-shaped slot aligns with the honeycomb rib structure on the speaker grille, enabling the ejector pin to eject the grille more effectively. During ejection, the center of the ejector head is aligned with the center of the honeycomb rib, ensuring sufficient contact between the ejector head and the herringbone rib for better ejection of the speaker grille. This prevents pitting on the honeycomb rib due to insufficient contact area and avoids misalignment during ejection, thus preventing damage to the grille. The staggered alignment of the connecting through holes, rather than a one-to-one alignment, further enhances connection strength and stability during ejection, preventing loosening or displacement of the ejector head and ensuring ejection quality. The first, second, and third fasteners can firmly fix the top head and the top rod, further improving the connection strength.

[0015] In summary, the advantages of this invention are that it can effectively and accurately push out the speaker cover, preventing dents or punctures, and improving product quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an ejector device suitable for speaker grilles according to the present invention.

[0017] Figure 2 This is a partial exploded view of an ejector device for speaker mesh according to the present invention.

[0018] Figure 3 This is a schematic diagram of the ejector pin in this invention.

[0019] Figure 4 This is a bottom view of the ejector pin in this invention.

[0020] Figure 5 This is a structural schematic diagram of the bottom of the top rod in this invention from one perspective.

[0021] Figure 6 This is a structural schematic diagram of the bottom of the top rod from another perspective in this invention.

[0022] Figure 7 This is a schematic diagram of the top head structure in this invention.

[0023] Figure 8 This is a schematic diagram of the speaker cover in this invention.

[0024] Figure 9 This is a schematic diagram of the speaker mesh structure in this invention.

[0025] The components are as follows: 1. Template; 10. Ejector pin module; 11. Cover plate mounting groove; 12. Ejector pin mounting stepped hole; 2. Ejector pin; 21. Ejector rod; 22. Ejector head; 221. First side; 222. Second side; 223. Third side; 224. Fixing through hole; 23. Herringbone groove; 24. First connecting part; 241. First connecting through hole; 242. Second connecting through hole; 25. Second connecting part; 251. Third connecting through hole; 252. Fourth connecting through hole; 26. Third connecting part; 261. Fifth connecting through hole; 262. Sixth connecting through hole; 27. First fixing member; 28. Second fixing member; 29. ​​Third fixing member; 3. Limiting protrusion; 4. Ejector pin fixing cover plate. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0027] like Figure 1 and Figure 2 As shown, an ejector device suitable for speaker grilles includes a template 1 and multiple ejector pins 2. The template 1 has multiple ejector pin modules 10, which facilitate the simultaneous ejection of multiple speaker grilles 5, improving production efficiency. Each ejector pin module 10 has a cover plate mounting groove 11, which facilitates the installation and fixation of the ejector pins 2, preventing them from loosening. The cover plate mounting groove 11 has multiple ejector pin mounting stepped holes 12 for mounting the ejector pins 2. Each ejector pin 2 is inserted into one ejector pin mounting stepped hole 12 in the template 1. The cover plate mounting groove 11 has an ejector pin fixing cover plate 4 for pressing and fixing multiple ejector pins, thus fixing the multiple ejector pins 2 and preventing them from loosening during ejection.

[0028] like Figures 3 to 7As shown, each ejector pin 2 includes an ejector rod 21 and an ejector head 22. The ejector rod 21 is cylindrical, and a limiting protrusion 3 is provided at the upper end of the ejector rod 21 to prevent the ejector rod 21 from slipping out. The ejector rod 21 passes through the ejector pin mounting stepped hole 12, and the limiting protrusion 3 is limited on the ejector rod mounting stepped hole 12. The ejector end of the ejector rod 21 is provided with a herringbone-shaped slot 23, which facilitates correspondence with the honeycomb rib 52 structure on the speaker cover 5, thereby enabling the ejector rod 21 to better eject the speaker cover 5. The herringbone-shaped slot 23 divides the lower end of the ejector rod 21 into a first connecting part 24, a second connecting part 25, and a third connecting part 26; and the first connecting part 24, the second connecting part 25, and the third connecting part 26 are arranged in three equal parts and have the same structure. The inner side of the first connecting part 231 is arc-shaped. The top head 22 has a herringbone shape that matches the herringbone slot 23. The top head 22 is inserted into the herringbone slot 23 of the top rod 21, and the top head 22 is fixedly connected to the top rod 21.

[0029] like Figure 7 As shown, the top head 22 includes a first side 221, a second side 222, and a third side 223. The included angle between any two adjacent sides is the same and is 120°. The lengths of the first side 221, the second side 222, and the third side 223 are equal. During ejection, the center of the top head 22 is aligned with the center 521 of the honeycomb rib, which facilitates sufficient contact between the top head 22 and the herringbone honeycomb rib 52. This allows for better ejection of the horn cover 5, while preventing pitting of the honeycomb rib 52 due to insufficient contact area and avoiding deviation from the honeycomb rib 52 during ejection, thus preventing the membrane 53 from being punctured. The first side 221, the second side 222, and the third side 223 are respectively provided with fixing through holes 224, which facilitate better fixation of the top head 22 in the herringbone groove 23 of the top rod 21.

[0030] like Figures 5 to 7As shown, the first connecting portion 24 is provided with a first connecting through hole 241 and a second connecting through hole 242 that are horizontally through; the first connecting through hole 241 and the second connecting through hole 242 are vertically aligned, and the first connecting through hole 241 is located above the second connecting through hole 242. The second connecting portion 25 is provided with a third connecting through hole 251 and a fourth connecting through hole 252 that are horizontally through; the third connecting through hole 251 and the fourth connecting through hole 252 are vertically aligned, and the third connecting through hole 251 is located above the fourth connecting through hole 252. The third connecting portion 26 is provided with a fifth connecting through hole 261 and a sixth connecting through hole 262 that are horizontally through; the fifth connecting through hole 261 and the sixth connecting through hole 262 are vertically aligned, and the fifth connecting through hole 261 is located above the sixth connecting through hole 262. By staggering the connecting through holes instead of aligning them one by one, the connection strength can be further improved, the stability during ejection can be enhanced, and the loosening or displacement of the ejector head 22 can be prevented, thereby further ensuring the ejection quality. The first connecting through hole 241 and the fourth connecting through hole 252 are laterally aligned, and the first side 221 is fixed to the top rod 21 by the first fixing member 27 passing through the fixing through hole 224 on the first side 221; the second connecting through hole 242 and the sixth connecting through hole 262 are laterally aligned, and the second side 222 is fixed to the top rod 21 by the second fixing member 28 passing through the fixing through hole 224 on the second side 222; the third connecting through hole 251 and the fifth connecting through hole 261 are laterally aligned, and the third fixing member 29 is fixed to the top rod 21 by the third fixing member 29 passing through the fixing through hole 224 on the third side 223. The first fixing member 27, the second fixing member 28, and the third fixing member 29 can firmly fix the top head 22 and the top rod 21, further improving the connection strength.

[0031] In addition to the above-mentioned connection method of connecting and fixing the ejector pin 2 with the ejector rod 21 and the ejector head 22, the ejector pin 2 can also be made by integral molding of the entire ejector pin 2 structure.

[0032] In summary, the advantages of this invention are that it can effectively and accurately push out the speaker cover, preventing dents or punctures, and improving product quality.

Claims

1. A ejection device suitable for loudspeaker mesh, the device comprising a template (1) and a plurality of ejection pins (2); said plurality of ejection pins (2) are inserted in the template (1), characterized in that, Each of the aforementioned ejector pins (2) includes an ejector rod (21) and an ejector head (22); the ejector end of the ejector rod (21) is provided with a herringbone groove (23); the herringbone groove (23) divides the lower end of the ejector rod (21) into a first connecting part (24), a second connecting part (25) and a third connecting part (26); the ejector head (22) has a herringbone shape that matches the structure of the herringbone groove (23), the ejector head (22) is inserted into the herringbone groove (23) of the ejector rod (21), and the ejector head (22) is fixedly connected to the ejector rod (21).

2. A device for ejecting a speaker mesh according to claim 1, wherein, The top head (22) includes a first side (221), a second side (222) and a third side (223); the included angle between any two adjacent sides is the same, and the lengths of the first side (221), the second side (222) and the third side (223) are equal; a fixing through hole (224) is provided on the first side (221), the second side (222) and the third side (223).

3. A device for ejecting a speaker mesh according to claim 2, wherein, The top rod (21) is cylindrical, and the first connecting part (24), the second connecting part (25) and the third connecting part (26) are arranged in three equal parts and have the same structure. The inner side of the first connecting part (24) is arc-shaped.

4. A device for ejecting a speaker mesh according to claim 3, wherein, The first connecting part (24) is provided with a first connecting through hole (241) and a second connecting through hole (242) that are horizontally through. The first connecting through hole (241) and the second connecting through hole (242) are vertically aligned, and the first connecting through hole (241) is located above the second connecting through hole (242). The second connecting part (25) is provided with a third connecting through hole (251) and a fourth connecting through hole (252) that are horizontally through. The third connecting through hole (251) and the fourth connecting through hole (252) are vertically aligned, and the third connecting through hole (251) is located above the fourth connecting through hole (252). The third connecting part (26) is provided with a fifth connecting through hole (261) and a sixth connecting through hole (262) that are horizontally through. The fifth connecting through hole (261) and the sixth connecting through hole (262) are vertically aligned, and the fifth connecting through hole (261) is located above the sixth connecting through hole (262).

5. A device for ejecting a speaker mesh according to claim 4, wherein, The first connecting through hole (241) is laterally aligned with the fourth connecting through hole (252), and the first side (221) is fixed to the top rod (21) by the first fixing member (27) passing through the fixing through hole (224) on the first side (221); the second connecting through hole (242) is laterally aligned with the sixth connecting through hole (262), and the second side (222) is fixed to the top rod (21) by the second fixing member (28) passing through the fixing through hole (224) on the second side (222); the third connecting through hole (251) is laterally aligned with the fifth connecting through hole (261), and the third side (223) is fixed to the top rod (21) by the third fixing member (29) passing through the fixing through hole (224) on the third side (223).

6. The ejection device for horn mesh according to claim 1, wherein The template (1) is provided with a plurality of ejector pin modules (10), each ejector pin module (10) is provided with a cover plate mounting groove (11), and the cover plate mounting groove (11) is provided with a plurality of ejector pin mounting stepped holes (12); the upper end of the ejector rod (21) is provided with a limiting protrusion (3) to prevent the ejector rod (21) from sliding out, the ejector rod (21) passes through the ejector pin mounting stepped hole (12), and the limiting protrusion (3) is limited on the ejector rod mounting stepped hole (12).

7. A device for ejecting a speaker mesh according to claim 6, wherein, The cover plate mounting groove (11) is provided with a pin fixing cover plate (4) for pressing and fixing multiple pins.

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