A precision stamping die for a loudspeaker pot core

Abstract

The utility model relates to loudspeaker washer processing equipment technical field, concretely is a kind of loudspeaker washer's precision stamping die, it includes: stamping platform, the top fixed mounting of stamping platform has mould main body, the upper of mould main body is provided with the stamping head that can move up and down;Conveying seat, the conveying seat fixed mounting between the left end of stamping platform top and the left side of mould main body, the inside of conveying seat is rotatably connected with lower transmission rod by bearing, the outer surface of lower transmission rod is fixedly connected with lower conveying roller wheel.The utility model can be on the basis of protection to metal sheet automatic feeding transmission, avoid and the situation that material guide plate, positioning pin, side blade part contact friction appear, it is favorable to the improvement of work efficiency and the reduction of low use cost.

Description

Technical Field

[0001] This utility model relates to the technical field of loudspeaker washer processing equipment, specifically a precision stamping die for loudspeaker washer. Background Technology

[0002] In the magnetic circuit system of a loudspeaker, the washer, as a core magnetic guiding component, directly affects the uniformity of magnetic conduction and the acoustic performance of the loudspeaker due to its surface quality. Washers are typically made from thin metal sheets (0.3-1mm thick) such as DT4E electrical pure iron or SPCC cold-rolled steel plates through precision stamping. The surface finish must reach Ra≤1.6μm, and there must be no defects such as scratches, embossing, or oxide scale. If scratches are present on the surface, it will lead to a decrease in local permeability, disrupt the uniform distribution of the magnetic field in the magnetic gap, and thus cause problems such as speaker sensitivity fluctuations and frequency response distortion.

[0003] Currently, in the precision stamping production of speaker manufacturers, the surface protection of thin materials (especially soft materials such as electrical pure iron) faces significant challenges: during automated feeding, the metal sheet needs to come into contact with and rub against the guide plate, positioning pin, and side cutting edge of the die. Due to the low hardness of the material (such as DT4E electrical pure iron with a hardness ≤HB100), linear scratches are easily generated on the surface. To alleviate the above problems, the industry often adopts the method of "material coating": a protective film (such as PE film) needs to be pre-coated on the surface of the metal sheet. However, coating increases the material cost, and the adhesion between the film layer and the material may affect the positioning accuracy during stamping. At the same time, the film layer may fall off and contaminate the die cutting edge. Therefore, we propose a precision stamping die for speaker manufacturers. Utility Model Content

[0004] The purpose of this utility model is to provide a precision stamping die for a loudspeaker washer, which has the advantages of high working efficiency, low operating cost and good protection effect. It solves the problem that in the process of automated feeding, the metal sheet needs to contact and rub with the guide plate, positioning pin and side cutting edge of the die, and linear scratches are easily generated on the surface due to the low hardness of the material.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a precision stamping die for a loudspeaker washer, comprising:

[0006] A stamping platform, wherein a mold body is fixedly installed on the top of the stamping platform, and a stamping head that can move up and down is provided above the mold body;

[0007] The conveyor seat is fixedly installed between the left end of the top of the stamping platform and the left side of the mold body. The inner side of the conveyor seat is movably connected to the lower transmission rod through the bearing, and the outer surface of the lower transmission rod is fixedly connected to the lower conveying roller.

[0008] A cover plate is located above the conveyor seat. Vertical plates are fixedly connected to both the front and rear sides of the cover plate. An upper transmission rod is movably connected to the inner side of the two vertical plates through bearings. An upper conveyor roller corresponding to the lower conveyor roller is fixedly connected to the outer surface of the upper transmission rod. Pulleys are fixedly installed at the front ends of the outer surfaces of the upper and lower transmission rods. Guide wheels are fixedly installed at both ends of one side of the conveyor seat.

[0009] A drive motor is fixedly installed on the left end of the top of the stamping platform. The output end of the drive motor is fixedly connected to a drive wheel, and a transmission belt is wound around the outer surface of the drive wheel.

[0010] Preferably, a lower cleaning block corresponding to the lower conveying roller is fixedly connected to the bottom of the inner side of the conveying seat, and an upper cleaning block corresponding to the upper conveying roller is fixedly connected to the bottom of the cover plate. Wiping pads are provided on the inner sides of both the upper and lower cleaning blocks.

[0011] Preferably, the outer surfaces of both the lower and upper conveying rollers are bonded with a protective rubber layer.

[0012] Preferably, the transmission belt is a polyurethane round belt, and the transmission belt is wrapped around the outer surface of the guide wheel and the pulley.

[0013] Preferably, the inner surface of the front end of the conveyor seat is provided with a through groove, and the transmission belt passes through its inner side.

[0014] Preferably, both the front and rear ends of the outer surface of the upper transmission rod are fixedly connected with limit spacers.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention enables automatic feeding and conveying of metal sheets while maintaining protection, avoiding contact and friction with the guide plate, positioning pins, and side blade components, thus improving work efficiency and reducing operating costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the mating structure of the conveyor seat and the cover plate of this utility model;

[0019] Figure 3 This utility model Figure 2 A schematic diagram of the exploded structure;

[0020] Figure 4 This is a schematic diagram of the lower transmission rod and the mating structure of the lower transmission rod of this utility model.

[0021] In the diagram: 1. Stamping platform; 2. Die body; 3. Stamping head; 4. Conveyor seat; 401. Lower cleaning block; 402. Guide wheel; 403. Transmission belt; 404. Through groove; 405. Lower transmission rod; 406. Lower conveyor roller; 5. Cover plate; 501. Vertical plate; 502. Upper cleaning block; 503. Upper transmission rod; 504. Upper conveyor roller; 505. Pulley; 506. Limiting spacer; 6. Drive motor; 601. Drive wheel; 7. Wiping pad. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not 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 effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] The stamping platform 1, mold body 2, stamping head 3, conveyor seat 4, lower cleaning block 401, guide wheel 402, transmission belt 403, through groove 404, lower transmission rod 405, lower conveyor roller 406, cover plate 5, upright plate 501, upper cleaning block 502, upper transmission rod 503, upper conveyor roller 504, pulley 505, limiting spacer 506, drive motor 6, drive wheel 601, and wiping pad 7 components in this application are all general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0026] Example 1

[0027] Please see Figures 1-4 As shown, this utility model provides a technical solution: a precision stamping die for a loudspeaker washer, comprising:

[0028] A stamping platform 1 is provided, and a mold body 2 is fixedly installed on the top of the stamping platform 1. A stamping head 3 that can move up and down is provided above the mold body 2.

[0029] The conveyor seat 4 is fixedly installed between the left end of the top of the stamping platform 1 and the left side of the mold body 2. The inner side of the conveyor seat 4 is movably connected to the lower transmission rod 405 through the bearing, and the outer surface of the lower transmission rod 405 is fixedly connected to the lower conveying roller 406.

[0030] Cover plate 5 is located above conveyor seat 4. Upright plates 501 are fixedly connected to both the front and rear sides of cover plate 5. The inner sides of the two upright plates 501 are movably connected to the upper transmission rod 503 through bearings. The outer surface of the upper transmission rod 503 is fixedly connected to the upper transmission roller 504 corresponding to the lower transmission roller 406. The front ends of the outer surfaces of the upper transmission rod 503 and the lower transmission rod 405 are fixedly installed with pulleys 505. Guide wheels 402 are fixedly installed at both the left and right ends of one side of the conveyor seat 4.

[0031] The drive motor 6 is fixedly installed on the left end of the top of the stamping platform 1. The output end of the drive motor 6 is fixedly connected to the drive wheel 601, and the outer surface of the drive wheel 601 is wrapped with a transmission belt 403.

[0032] The outer surfaces of the lower conveyor roller 406 and the upper conveyor roller 504 are both bonded with a protective rubber layer. The transmission belt 403 is a polyurethane round belt, and the transmission belt 403 is wrapped around the outer surfaces of the guide wheel 402 and the pulley 505. The front and rear ends of the outer surface of the upper transmission rod 503 are fixedly connected with limit spacers 506.

[0033] This technical solution: Before starting the equipment, it needs to be inspected. Once the equipment is in normal working order, connect it to mains power via the main control switch. Then, set the normal operating program of the equipment in the existing technology via the external control box. Through the setting of the lower conveyor roller 406, the upper conveyor roller 504, and the limit spacer 506, the metal sheet can be transmitted and positioned. When the equipment is operating according to the normal operating program in the existing technology, the drive motor 6 will drive the drive wheel 601 to wind one side of the transmission belt 403 and unwind the other side, thereby driving the transmission belt 403 to rotate. When the transmission belt 403 rotates, it can drive the pulley 505 to rotate with the assistance of the guide wheel 402. When all the pulleys 505 rotate, the upper transmission rod 503 and the lower transmission rod 405 can rotate in opposite directions at the upper end of the conveyor seat 4 and the inner side of the upright plate 501 (e.g., Figure 4 As shown, when the upper transmission rod 503 and the lower transmission rod 405 rotate in opposite directions, they will drive the upper conveying roller 504 and the lower conveying roller 406 to rotate respectively. With the assistance of the protective rubber layer bonded to the outer surface of the limiting spacer 506 and the lower conveying roller 406 and the upper conveying roller 504, the metal sheet can be automatically and smoothly transported to the stamping position at the top of the mold body 2 without damaging the surface of the protective metal sheet. When the stamping head 3 moves downward, it can perform the stamping work of the speaker washer on the metal sheet.

[0034] It should be noted that the stamping platform 1, mold body 2, stamping head 3, guide wheel 402, transmission belt 403, drive motor 6, drive wheel 601 and wiping pad 7 used in this equipment can all be purchased directly from the market. At the same time, the connection method and electrical connection relationship of each component adopt mature conventional methods in existing technology, so they will not be described in detail here.

[0035] Example 2

[0036] Based on Embodiment 1, this utility model is as follows: Figures 1-4 As shown, a lower cleaning block 401 corresponding to the lower conveying roller 406 is fixedly connected to the bottom of the inner side of the conveyor seat 4, and an upper cleaning block 502 corresponding to the upper conveying roller 504 is fixedly connected to the bottom of the cover plate 5. Wiping pads 7 are provided on the inner sides of both the upper cleaning block 502 and the lower cleaning block 401.

[0037] This technical solution: By setting up the upper cleaning block 502 and the lower cleaning block 401, and with the assistance of the wiping pad 7 bonded to their inner sides, the surfaces of the rotating upper conveying roller 504 and the lower conveying roller 406 can be wiped and cleaned, ensuring the cleanliness of the surfaces of the upper conveying roller 504 and the lower conveying roller 406, and avoiding the adverse effects of unclean surfaces of the upper conveying roller 504 and the lower conveying roller 406 on the feeding of metal sheets. At the same time, the cover plate 5 is a detachable structure, which makes it easier for workers to replace or maintain the wiping pad 7.

[0038] Example 3

[0039] Based on Embodiment 1, this utility model is as follows: Figures 1-4 As shown, a through groove 404 is provided on the inner surface of the front end of the conveyor seat 4, and the transmission belt 403 passes through its inner side.

[0040] This technical solution ensures the normal transmission of the transmission belt 403 by setting the through groove 404.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model 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 this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A precision stamping die for a loudspeaker washer, characterized in that, include: A stamping platform (1) is provided with a mold body (2) fixedly installed on the top of the stamping platform (1), and a stamping head (3) that can move up and down is provided above the mold body (2). The conveyor seat (4) is fixedly installed between the left end of the top of the stamping platform (1) and the left side of the mold body (2). The inner side of the conveyor seat (4) is movably connected to the lower transmission rod (405) through the bearing. The outer surface of the lower transmission rod (405) is fixedly connected to the lower conveying roller (406). Cover plate (5), the cover plate (5) is located above the conveyor seat (4), the front and rear sides of the cover plate (5) are fixedly connected with upright plates (501), the inner sides of the two upright plates (501) are movably connected with an upper transmission rod (503) through bearings, the outer surface of the upper transmission rod (503) is fixedly connected with an upper conveyor roller (504) corresponding to the lower conveyor roller (406), the front ends of the outer surfaces of the upper transmission rod (503) and the lower transmission rod (405) are fixedly installed with pulleys (505), and the left and right ends of one side of the conveyor seat (4) are fixedly installed with guide wheels (402); A drive motor (6) is fixedly installed on the left end of the top of the stamping platform (1). The output end of the drive motor (6) is fixedly connected to a drive wheel (601). A transmission belt (403) is wound around the outer surface of the drive wheel (601).

2. The precision stamping die for a loudspeaker washer according to claim 1, characterized in that: The bottom of the inner side of the conveyor seat (4) is fixedly connected to a lower cleaning block (401) corresponding to the lower conveyor roller (406), and the bottom of the cover plate (5) is fixedly connected to an upper cleaning block (502) corresponding to the upper conveyor roller (504). The inner sides of the upper cleaning block (502) and the lower cleaning block (401) are both provided with wiping pads (7).

3. The precision stamping die for a loudspeaker washer according to claim 1, characterized in that: The outer surfaces of both the lower conveying roller (406) and the upper conveying roller (504) are bonded with a protective rubber layer.

4. The precision stamping die for a loudspeaker washer according to claim 1, characterized in that: The transmission belt (403) is a polyurethane round belt, and the transmission belt (403) is wrapped around the outer surface of the guide wheel (402) and the pulley (505).

5. The precision stamping die for a loudspeaker washer according to claim 1, characterized in that: The inner surface of the front end of the conveyor seat (4) is provided with a through groove (404), and the transmission belt (403) passes through its inner side.

6. The precision stamping die for a loudspeaker washer according to claim 1, characterized in that: Limiting spacers (506) are fixedly connected to both the front and rear ends of the outer surface of the upper transmission rod (503).

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