Mould for microphone plastic part

Abstract

The utility model relates to the technical field of injection molds, and discloses a mold for a microphone plastic part, which comprises a bottom plate, square irons are fixedly connected to two sides of the upper part of the bottom plate, a plate B is fixedly connected to the upper parts of the square irons, a forming assembly is arranged at the upper part of the inner side of the plate B and is used for forming a product, and pulling plates are arranged on the left and right sides of the plate B and are used for pulling the product. An edge locking convex block is fixedly connected to the upper portion of the front side of the plate B. An A plate is arranged on the upper portions of the opposite sides of the left pulling plate and the right pulling plate, an edge locking concave block is fixedly connected to the lower portion of the front side of the A plate, and a front mold core is fixedly connected to the inner side of the lower portion of the A plate. According to the utility model, during mold opening, the plastic part of the microphone is partially pressed and covered by the slide insert, and the plastic part of the microphone is prevented from being driven to form pulling along with upward movement of the front mold core, so that the plastic part of the microphone is left on the rear mold core, mold opening is facilitated after injection molding, and deformation of an injection molding part caused by mold opening is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a mold for a microphone plastic part. Background Art

[0002] The structure of the mold varies greatly due to the different types of plastics and the structure and shape of plastic products, but the basic structure is the same. It is generally composed of two parts: a movable mold and a fixed mold. Microphones are known for their high quality and reliability and are widely used in conferencing, recording, broadcasting and other fields. Injection molds are also required for the manufacture of microphone shells.

[0003] In the prior art, microphone plastic mold sets are equipped with an injection mold structure so that the device can automatically eject the molded part from the core after the injection is completed. However, in conventional designs, the glue position will stick to the front mold when the injection mold is opened, causing local deformation of the molded part. Utility Model Content

[0004] In order to make up for the above shortcomings, the present invention provides a mold for a microphone plastic part, aiming to improve the problem in the prior art that the glue position of the microphone plastic part mold will stick to the front mold during injection molding, causing deformation of the injection molded part.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a mold for a microphone plastic part, comprising a base plate, square irons are fixedly connected to both sides of the upper part of the base plate, a B plate is fixedly connected to the upper part of the square iron, a molding assembly is provided on the upper inner side of the B plate for molding the product, pull plates are provided on the left and right sides of the B plate, a side lock protrusion is fixedly connected to the upper front side of the B plate, an A plate is provided on the upper opposite sides of the left and right pull plates, a side lock concave block is fixedly connected to the lower front side of the A plate, a front mold core is fixedly connected to the inner side of the lower part of the A plate, and an ejection assembly is provided in the middle of the base plate for ejecting the product.

[0006] As a further description of the above technical solution:

[0007] The molding assembly includes a rear mold core, which is fixedly connected to the inner side of the upper part of the B plate, and the upper parts of the left and right sides of the rear mold core are fixedly connected to slide seats, and the lower part of the slide seat is fixedly connected to the slide bottom wear-resistant block, and the middle part of the left side of the right slide seat is fixedly connected to the slide body, and the upper part of the slide body is fixedly connected to the slide insert, and the middle part of the slide seat is fixedly connected to the inclined guide column, and the left and right sides of the front mold core are fixedly connected to shovel machines, and the plastic part body is molded on the side opposite to the front mold core and the rear mold core.

[0008] As a further description of the above technical solution:

[0009] The ejection assembly includes an ejector plate, which is fixedly connected to the middle part of the bottom plate. Return pins are fixedly connected to the left and right sides of the upper part of the ejector plate, and return springs are fixedly connected to the left and right sides of the middle part of the ejector plate.

[0010] As a further description of the above technical solution:

[0011] Positioning guide pillars are evenly fixedly connected around the upper portion of the B plate, and an early return device is provided on the front side of the B plate.

[0012] As a further description of the above technical solution:

[0013] Large pull rods are evenly and fixedly connected to the upper part of the A plate around its periphery, and a stripping plate is fixedly connected to the upper part of the large pull rod.

[0014] As a further description of the above technical solution:

[0015] The upper portion of the stripping plate is fixedly connected to a panel, and the middle portion of the panel is fixedly connected to a nozzle.

[0016] As a further description of the above technical solution:

[0017] Small pull rods are evenly and fixedly connected around the middle of the A plate, and the upper parts of the small pull rods are fixedly connected to the stripping plate.

[0018] As a further description of the above technical solution:

[0019] The left side of the slide insert is located on the right side of the upper part of the plastic component body.

[0020] The utility model has the following beneficial effects:

[0021] In the present invention, when the mold is opened, the microphone plastic part is partially covered by the slide insert to prevent the microphone plastic part from being pulled by the upward movement of the front mold core, thereby ensuring that the microphone plastic part remains on the upper surface of the rear mold core, making it easier to open the mold after injection molding and preventing deformation of the injection molded part caused by mold opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a three-dimensional diagram of a mold for a microphone plastic part proposed in the present invention;

[0023] Figure 2 This is a mold opening diagram of a microphone plastic part mold proposed in the utility model;

[0024] Figure 3 This is a partial cross-sectional view of a mold for a microphone plastic part proposed in the present invention;

[0025] Figure 4 for Figure 3 A magnified view of point A in the figure;

[0026] Figure 5 This is a structural diagram of a mold slide and insert for a microphone plastic part proposed in the present invention.

[0027] Legend:

[0028] 1. Bottom plate; 2. Square iron; 3. Ejector plate; 4. B plate; 5. Pull plate; 6. A plate; 7. Stripper plate; 8. Face plate; 9. Nozzle; 10. Early return device; 11. Positioning guide post; 12. Large pull rod; 13. Small pull rod; 14. Return spring; 15. Return pin; 16. Side lock protrusion; 17. Side lock concave block; 18. Slide body; 19. Slide insert; 20. Slide seat; 21. Slide bottom wear block; 22. Inclined guide post; 23. Shovel; 24. Rear mold core; 25. Front mold core; 26. Plastic part body. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Reference Figure 1-Figure 3 , the utility model provides an embodiment: a mold for a microphone plastic part, including a bottom plate 1, square irons 2 are evenly fixedly connected to the upper part of the bottom plate 1, and the B plate 4 is supported by the square irons 2. The upper part of the square irons 2 is fixedly connected to the B plate 4, and pull plates 5 are provided on the left and right sides of the B plate 4. A plate 6 is provided on the upper part of the opposite side of the left and right pull plates 5. Positioning guide pillars 11 are evenly fixedly connected to the upper part of the B plate 4, and an early return device 10 is provided on the front side of the B plate 4. A large pull rod 12 is evenly fixedly connected to the upper part of the A plate 6, and a stripping plate 7 is fixedly connected to the upper part of the large pull rod 12. The A plate 6 is pulled by the pull plate 5, so that the A plate 6 is separated from the stripping plate 7. It is convenient to remove the waste material from the injection molding nozzle, which improves the service life of the mold. The upper part of the stripping plate 7 is fixedly connected to the panel 8, and the middle part of the panel 8 is fixedly connected to the nozzle 9. Small pull rods 13 are evenly fixedly connected to the middle part of the A plate 6. The upper part of the small pull rod 13 is fixedly connected to the stripping plate 7, and the stripping plate 7 and the A plate 6 are connected through the small pull rod 13 and the large pull rod 12. An ejection assembly is provided in the middle part of the bottom plate 1 for ejecting the product. The ejection assembly includes an ejector plate 3, which is fixedly connected to the middle part of the bottom plate 1, and return pins 15 are fixedly connected to the left and right sides of the upper part of the ejector plate 3, and return springs 14 are fixedly connected to the left and right sides of the middle part of the ejector plate 3.

[0031] Reference Figure 3-Figure 5, the lower front part of the A plate 6 is fixedly connected with a side lock concave block 17, and the side lock concave block 17 is installed through the A plate 6. The inner side of the lower part of the A plate 6 is fixedly connected with the front mold core 25, and the upper front part of the B plate 4 is fixedly connected with the side lock protrusion 16. The mold is positioned by cooperating with the side lock protrusion 16 and the side lock concave block 17. A forming assembly is provided on the upper inner part of the B plate 4 for forming the product. The forming assembly includes a rear mold core 24, which is fixedly connected to the inner side of the upper part of the B plate 4. The left and right sides of the rear mold core 24 The upper part is fixedly connected to the slide seat 20, the lower part of the slide seat 20 is fixedly connected to the slide bottom wear-resistant block 21, the middle part of the left side of the right slide seat 20 is fixedly connected to the slide body 18, the upper part of the slide body 18 is fixedly connected to the slide insert 19, the middle part of the slide seat 20 is fixedly connected to the inclined guide column 22, the left and right sides of the front mold core 25 are fixedly connected to the shovel machine 23, the rear mold core 24 is molded with a plastic part body 26 on the side opposite to the front mold core 25, and the left side of the slide insert 19 is located on the upper right side of the plastic part body 26.

[0032] By modifying the design of the slide body 18 and adding a slide insert 19, the performance of the injection mold is significantly improved. During the mold opening process, the slide insert 19 can partially cover the microphone plastic part to ensure that it will not be pulled as the front mold core 25 moves up when the mold is opened, avoiding the displacement of the plastic part due to uneven force, and ensuring that the product remains on the top of the rear mold core 24 during the mold opening process, reducing the risk of sticking to the front mold during mold opening. Through reasonable design, the slide insert 19 plays a key supporting role, making the entire mold opening process smoother, thereby effectively preventing the deformation of the injection molded parts caused by mold opening.

[0033] Working principle: By modifying the slide body 18 and adding a slide insert 19 to the slide body 18, the slide insert 19 partially covers the microphone plastic part when the mold is opened, so that the microphone plastic part is not pulled by the upward movement of the front mold core 25. In this way, the microphone plastic part remains on the upper surface of the rear mold core 24, which facilitates the mold opening after injection molding and prevents the injection molded part from being deformed due to mold opening.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A mold for a microphone plastic part, comprising a base plate (1), characterized in that: Square irons (2) are fixedly connected to the upper sides of the bottom plate (1), a B plate (4) is fixedly connected to the upper side of the square iron (2), a forming assembly is provided on the inner upper side of the B plate (4) for forming the product, a pull plate (5) is provided on the left and right sides of the B plate (4), a side lock protrusion (16) is fixedly connected to the upper front side of the B plate (4), an A plate (6) is provided on the upper side of the two opposite sides of the left and right pull plates (5), a side lock concave block (17) is fixedly connected to the lower front side of the A plate (6), a front mold core (25) is fixedly connected to the inner side of the lower part of the A plate (6), and an ejection assembly is provided on the upper middle part of the bottom plate (1) for ejecting the product.

2. The mold for a microphone plastic part according to claim 1, characterized in that: The molding assembly includes a rear mold core (24), the rear mold core (24) is fixedly connected to the inner side of the upper part of the B plate (4), the upper parts of the left and right sides of the rear mold core (24) are fixedly connected with a slider seat (20), the lower part of the slider seat (20) is fixedly connected with a slider bottom wear-resistant block (21), the left middle part of the right slider seat (20) is fixedly connected with a slider body (18), the upper part of the slider body (18) is fixedly connected with a slider insert (19), the middle part of the slider seat (20) is fixedly connected with an inclined guide column (22), the left and right sides of the front mold core (25) are fixedly connected with a shovel (23), and the side opposite to the front mold core (25) and the rear mold core (24) is molded with a plastic part body (26).

3. The mold for a microphone plastic part according to claim 1, wherein: The ejection assembly comprises an ejector plate (3), the ejector plate (3) being fixedly connected to the upper middle portion of the base plate (1), return pins (15) being fixedly connected to the left and right sides of the upper portion of the ejector plate (3), and return springs (14) being fixedly connected to the left and right sides of the upper middle portion of the ejector plate (3).

4. The mold for a microphone plastic part according to claim 1, wherein: Positioning guide pillars (11) are evenly and fixedly connected to the upper portion of the B plate (4) on all sides, and an early return device (10) is provided on the front side of the B plate (4).

5. The mold for a microphone plastic part according to claim 1, characterized in that: Large pull rods (12) are evenly and fixedly connected to the upper portion of the A plate (6) around the periphery, and a stripping plate (7) is fixedly connected to the upper portion of the large pull rod (12).

6. The mold for a microphone plastic part according to claim 5, characterized in that: The upper part of the stripping plate (7) is fixedly connected to a panel (8), and the upper middle part of the panel (8) is fixedly connected to a nozzle (9).

7. The mold for a microphone plastic part according to claim 5, characterized in that: Small pull rods (13) are evenly and fixedly connected around the upper middle portion of the A plate (6), and the upper portion of the small pull rods (13) is fixedly connected to the stripping plate (7).

8. The mold for a microphone plastic part according to claim 2, wherein: The left side of the slide insert (19) is located on the right side of the upper part of the plastic body (26).

Images