Automatic exhaust device of loudspeaker assembly injection mold

Abstract

The utility model discloses a kind of automatic exhaust devices of loudspeaker assembly injection mold, it is related to mould exhaust relevant field, including mould body and exhaust device, the mould body is composed of upper die and lower die, the bottom left and right ends of upper die in the mould body are all fixedly connected with exhaust device, exhaust device is set, the air of mould body cavity is extracted by vacuum pump, reduce gas residue from source, eliminate the defect such as burning, bubble caused by air stagnation, improve melt fluidity, guarantee the integrity of precision structure, knock mechanism is set, exhaust pipe is knocked by two groups of knock rod, so that molten material residue attached to exhaust pipe inner wall is loose and falls off, reduce the possibility of blockage caused by carbonization accumulation.

Description

Technical Field

[0001] This utility model relates to the field of mold venting, specifically an automatic venting device for a speaker component injection mold. Background Technology

[0002] The automatic venting device for speaker component injection molds is a special structure used to automatically discharge the gas generated in the mold cavity, parting surface and melt flow front during the injection process. Its core function is to avoid defects in plastic parts caused by gas retention, while improving injection efficiency and product consistency.

[0003] Automatic venting devices commonly used in speaker component injection molds are difficult to reduce residual gas at the source, making it difficult to eliminate defects such as scorching and bubbles caused by air retention. This reduces melt fluidity and makes it difficult to ensure the integrity of precision structures. When using venting pipes for automatic venting, existing technologies make it difficult to loosen and remove molten residues adhering to the inner wall of the venting pipe, increasing the possibility of carbonization accumulation and blockage. Utility Model Content

[0004] Therefore, in order to overcome the above-mentioned shortcomings, this utility model provides an automatic venting device for a speaker assembly injection mold.

[0005] This invention is achieved by constructing an automatic venting device for a speaker component injection mold. The device includes a mold body, which is composed of an upper mold and a lower mold. Venting devices are fixedly connected to the left and right ends of the bottom of the upper mold inside the mold body.

[0006] The exhaust device includes extrusion rods. Extrusion rods are fixedly connected to the bottom left and right ends of the upper mold body. Laser rangefinders are fixedly connected to the top left and right ends of the lower mold body. Control switches are fixedly connected to the top left and right ends of the lower mold body. Exhaust pipes are fixedly connected to the front left and right sides of the lower mold body. Solenoid valves are fixedly connected to the exhaust pipe inlets. Vacuum pumps are fixedly connected to the front ends of the exhaust pipes. A striking mechanism is fixedly connected to the left end of the back of the vacuum pump.

[0007] Preferably, the striking mechanism includes a mounting box, with the mounting box fixedly connected to the left end of the back of the vacuum pump. A mounting plate is fixedly connected to the bottom right end of the mounting box. A motor is fixedly connected to the upper back of the mounting plate. A rotating block is fixedly connected to the output shaft at the front end of the motor. A rotating rod is rotatably connected to the lower front end of the rotating block. A swing block is rotatably connected to the left end of the back of the rotating rod. A fixed block is rotatably connected to the center of the back of the swing block. A connecting seat is rotatably connected to the upper left of the outer wall of the swing block. The right end of the connecting seat is rotatably connected to the outer wall of the connecting block.

[0008] Preferably, the striking mechanism further includes a gear tooth plate component, the right end of the connecting block is fixedly connected to the inner front tooth plate of the gear tooth plate component, the bottom of the inner tooth plate of the gear tooth plate component is slidably connected to the top of the base plate, and the right ends of the two sets of tooth plates inside the gear tooth plate component are fixedly connected with striking rods.

[0009] Preferably, the laser rangefinder is electrically connected to an external display screen, the control switch is electrically connected to a solenoid valve, and the laser rangefinder is located behind the control switch.

[0010] Preferably, the upper back of the rotating block is rotatably connected to the upper front end of the mounting plate, and the bottom of the fixed block is fixedly connected to the bottom left end of the mounting box.

[0011] Preferably, the bottom of the gear inside the gear plate is rotatably connected to the top of the base plate, the back of the base plate is fixedly connected to the rear end of the mounting box, and the striking rod passes through the right end of the mounting box and is slidably connected to its interior.

[0012] This utility model has the following advantages: This utility model provides an automatic venting device for a speaker assembly injection mold, which, compared with similar equipment, has the following improvements:

[0013] The present invention discloses an automatic venting device for a speaker assembly injection mold. The venting device uses a vacuum pump to remove air from the mold cavity, reducing residual gas at the source and eliminating defects such as scorching and bubbles caused by air retention. This improves melt flowability and ensures the integrity of the precision structure. A striking mechanism is also included, which uses two sets of striking rods to strike the venting pipe, loosening and removing molten residue adhering to the inner wall of the venting pipe, reducing the possibility of carbonization accumulation and blockage. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the mold body of this utility model;

[0015] Figure 2 This is a three-dimensional structural diagram of the exhaust device of this utility model;

[0016] Figure 3 This is a three-dimensional exploded view of the striking mechanism of this utility model;

[0017] Figure 4 This is a utility model Figure 3 A magnified structural diagram of point A in the middle.

[0018] The components include: mold body-1, exhaust device-2, extrusion rod-21, laser rangefinder-22, control switch-23, exhaust pipe-24, solenoid valve-25, vacuum pump-26, striking mechanism-27, mounting box-271, mounting plate-272, motor-273, rotating block-274, rotating rod-275, swing block-276, fixing block-277, connecting seat-278, connecting block-279, gear tooth plate-2710, base plate-2711, and striking rod-2712. Detailed Implementation

[0019] The following is in conjunction with the appendix Figures 1-4 The principles and features of this utility model are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0020] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] Example 1:

[0023] Please see Figures 1-4 The present invention discloses an automatic venting device for a speaker assembly injection mold, comprising a mold body 1, which is composed of an upper mold and a lower mold. Venting devices 2 are fixedly connected to the bottom left and right ends of the upper mold inside the mold body 1.

[0024] The exhaust device 2 includes an extrusion rod 21. The extrusion rod 21 is fixedly connected to the bottom left and right ends of the upper mold inside the mold body 1. The laser rangefinder 22 is fixedly connected to the top left and right ends of the lower mold inside the mold body 1. The laser rangefinder 22 facilitates the detection of the movement position of the upper mold inside the mold body 1.

[0025] Control switches 23 are fixedly connected to the top left and right ends of the lower mold inside the mold body 1. Exhaust pipes 24 are fixedly connected to the front left and right sides of the lower mold inside the mold body 1. Solenoid valves 25 are fixedly connected to the inlet of the exhaust pipes 24. Solenoid valves 25 facilitate the control of gas in and out.

[0026] A vacuum pump 26 is fixedly connected to the front end of the exhaust pipe 24. A knocking mechanism 27 is fixedly connected to the left side of the back of the vacuum pump 26. The laser rangefinder 22 is electrically connected to the external display screen. The control switch 23 is electrically connected to the solenoid valve 25. The laser rangefinder 22 is located behind the control switch 23.

[0027] The striking mechanism 27 includes a mounting box 271. The mounting box 271 is fixedly connected to the left side of the back of the vacuum pump 26. The mounting plate 272 is fixedly connected to the bottom right side of the mounting box 271. The motor 273 is fixedly connected to the upper back of the mounting plate 272. The motor 273 can drive the rotating block 274 to rotate.

[0028] A rotating block 274 is fixedly connected to the front output shaft of the motor 273. A rotating rod 275 is rotatably connected to the lower front end of the rotating block 274. A swing block 276 is rotatably connected to the left end of the back of the rotating rod 275. A fixed block 277 is rotatably connected to the center of the back of the swing block 276. The fixed block 277 facilitates the limited movement of the swing block 276.

[0029] A connecting seat 278 is rotatably connected to the upper left of the outer wall of the swing block 276. The right end of the connecting seat 278 is rotatably connected to the outer wall of the connecting block 279. The right end of the connecting block 279 is fixedly connected to the front end gear plate of the gear tooth plate component 2710. The bottom of the gear tooth plate of the gear tooth plate component 2710 is slidably connected to the top of the base plate 2711. The base plate 2711 facilitates the limited movement of the gear tooth plate of the gear tooth plate component 2710.

[0030] The right ends of the two sets of gear plates in the gear plate component 2710 are fixedly connected to a striking rod 2712. The upper back of the rotating block 274 is rotatably connected to the upper front end of the mounting plate 272. The bottom of the fixed block 277 is fixedly connected to the bottom left end of the mounting box 271. The striking rod 2712 facilitates striking the exhaust pipe 24.

[0031] The bottom of the gear in the gear plate 2710 is rotatably connected to the top of the base plate 2711, the back of the base plate 2711 is fixedly connected to the rear end of the mounting box 271, and the striking rod 2712 passes through the right end of the mounting box 271 and is slidably connected to its interior.

[0032] The working principle of the automatic venting device for a speaker component injection mold based on Embodiment 1 is as follows:

[0033] First, when using this device, place it in the work area, and then connect it to an external power source to provide the power required for its operation.

[0034] Second, when the upper and lower molds in the mold body 1 are closing, the upper mold in the mold body 1 drives the extrusion rod 21 to move downward. When the upper and lower molds are closing, the extrusion rod 21 extrudes the control switch 23, causing the control switch 23 to drive the solenoid valve 25 to work. When the upper and lower molds are closing, the position of the upper mold in the mold body 1 is detected by the laser rangefinder 22, and the electrical signal is transmitted to the external display screen. The operator observes the movement position of the upper mold in the mold body 1 through the external display screen to determine whether the extrusion rod 21 extrudes the control switch 23. Then, the vacuum pump 26 is started, and the air in the cavity of the mold body 1 is extracted through the exhaust pipe 24 to reduce gas residue from the source, eliminate defects such as scorching and bubbles caused by air retention, improve melt fluidity, and ensure the integrity of the precision structure.

[0035] Third, when it is necessary to strike the exhaust pipe 24, start the motor 273. The motor 273 drives the rotating block 274 to rotate. The rotating block 274 drives the swing block 276 to swing at the front end of the fixed block 277 through the rotational connection with the rotating rod 275. The swing block 276 drives the connecting block 279 to move through the rotational connection with the connecting seat 278. The connecting block 279 drives the front tooth plate inside the gear tooth plate 2710 to move to the left or right. The front tooth plate inside the gear tooth plate 2710 drives the gear inside the gear tooth plate 2710 to rotate. The gear inside the gear tooth plate 2710 drives the rear tooth plate inside the gear tooth plate 2710 to move to the right or left. This causes the two sets of tooth plates to drive the two sets of striking rods 2712 to strike the exhaust pipe 24, loosening and removing the molten residue attached to the inner wall of the exhaust pipe, reducing the possibility of carbonization accumulation and blockage.

[0036] This utility model provides an automatic venting device for a speaker component injection mold by improving the existing device. The device includes an venting device 2, which uses a vacuum pump 26 to remove air from the cavity of the mold body 1, reducing residual gas at the source and eliminating defects such as scorching and bubbles caused by air retention. This improves melt flowability and ensures the integrity of the precision structure. The device also includes a striking mechanism 27, which uses two sets of striking rods 2712 to strike the venting pipe 24, loosening and removing molten residue adhering to the inner wall of the venting pipe, reducing the possibility of carbonization accumulation and blockage.

[0037] The above describes the basic principles, main features, and advantages of this utility model. All standard parts used in this utility model can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all adopt conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, and the circuit connections adopt conventional connection methods in the prior art, which will not be detailed here.

[0038] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automatic venting device for a speaker assembly injection mold, comprising a mold body (1), wherein the mold body (1) is composed of an upper mold and a lower mold, and venting devices (2) are fixedly connected to the left and right ends of the bottom of the upper mold inside the mold body (1); Its features are: The exhaust device (2) includes an extrusion rod (21). The extrusion rod (21) is fixedly connected to the bottom left and right ends of the upper mold inside the mold body (1). The laser rangefinder (22) is fixedly connected to the top left and right ends of the lower mold inside the mold body (1). The control switch (23) is fixedly connected to the top left and right ends of the lower mold inside the mold body (1). The exhaust pipe (24) is fixedly connected to the left and right sides of the front end of the lower mold inside the mold body (1). The solenoid valve (25) is fixedly connected to the inlet of the exhaust pipe (24). The vacuum pump (26) is fixedly connected to the front end of the exhaust pipe (24). The knocking mechanism (27) is fixedly connected to the left end of the back of the vacuum pump (26).

2. The automatic venting device for a speaker assembly injection mold according to claim 1, characterized in that: The striking mechanism (27) includes a mounting box (271). The mounting box (271) is fixedly connected to the left side of the back of the vacuum pump (26). The mounting plate (272) is fixedly connected to the bottom right side of the mounting box (271). The motor (273) is fixedly connected to the upper back of the mounting plate (272). The output shaft of the front end of the motor (273) is fixedly connected to a rotating block (274). The rotating rod (275) is rotatably connected to the lower front end of the rotating block (274). The swing block (276) is rotatably connected to the left side of the back of the rotating rod (275). The fixed block (277) is rotatably connected to the center of the back of the swing block (276). The connecting seat (278) is rotatably connected to the upper left side of the outer wall of the swing block (276). The right side of the connecting seat (278) is rotatably connected to the outer wall of the connecting block (279).

3. The automatic venting device for a speaker assembly injection mold according to claim 2, characterized in that: The striking mechanism (27) further includes a gear tooth plate (2710), the right end of the connecting block (279) is fixedly connected to the front end tooth plate inside the gear tooth plate (2710), the bottom of the tooth plate inside the gear tooth plate (2710) is slidably connected to the top of the base plate (2711), and the right ends of the two sets of tooth plates inside the gear tooth plate (2710) are fixedly connected to striking rods (2712).

4. The automatic venting device for a speaker assembly injection mold according to claim 3, characterized in that: The laser rangefinder (22) is electrically connected to an external display screen, the control switch (23) is electrically connected to a solenoid valve (25), and the laser rangefinder (22) is located behind the control switch (23).

5. The automatic venting device for a speaker assembly injection mold according to claim 4, characterized in that: The upper back of the rotating block (274) is rotatably connected to the upper front end of the mounting plate (272), and the bottom of the fixing block (277) is fixedly connected to the bottom left end of the mounting box (271).

6. The automatic venting device for a speaker assembly injection mold according to claim 5, characterized in that: The bottom of the gear in the gear plate (2710) is rotatably connected to the top of the base plate (2711), the back of the base plate (2711) is fixedly connected to the rear end of the mounting box (271), and the striking rod (2712) passes through the right end of the mounting box (271) and is slidably connected to its interior.

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