Loudspeaker pad cotton pasting tool

Abstract

The utility model discloses a loudspeaker pad cotton pasting tool, and the tool comprises a rotating disc which is used for bearing and driving a loudspeaker to coaxially rotate; the positioning jig is coaxially arranged above the turntable, can move up and down, and is used for covering the loudspeaker but exposing an annular pad cotton pasting area of the loudspeaker; the flange jig is arranged on one side above the turntable, and a gap for limiting cushion cotton is formed between the flange jig and the positioning jig; when pad cotton pasting operation is carried out, the positioning jig moves downwards to be close to the loudspeaker, and the pad cotton is attached to an annular pad cotton pasting area of the loudspeaker in a surrounding mode along with rotation of the loudspeaker under common limiting of the positioning jig and the flange jig. According to the loudspeaker pad cotton pasting tool, automatic pad cotton pasting can be achieved, and the automation level is improved; the cotton cushion can be guaranteed not to deviate and incline, poor performance and poor appearance can be avoided, consistency is improved, and high quality is guaranteed.

Description

Technical Field

[0001] This application relates to the technical field of fixture tools for speakers, and particularly to a fixture tool for attaching cushion cotton to speakers. Background Art

[0002] A speaker, also known as a loudspeaker, is a common electro-acoustic transducer device and is commonly used in various products in multiple fields. Currently, for speakers used in automobiles, a circle of cushion cotton is usually attached to the front of the speaker. The materials of the cushion cotton include, but are not limited to, EVA (polyolefin), rubber, foam, sponge, pearl cotton, silica gel, etc. The cushion cotton can have self-adhesive and can be directly adhered to the edge of the front of the speaker, and this process has high efficiency. The cushion cotton also begins to be without self-adhesive, but instead uses an injection molding process. After injecting glue at the edge of the front of the speaker, the cushion cotton is then attached and then cured (the curing time is generally more than several hours). This process has low operation efficiency, and the product cannot be touched or moved during the curing process.

[0003] Since the material of the cushion cotton is relatively soft and the area of the region on the speaker for adhering the cushion cotton is very small, it is very difficult to attach the cushion cotton through fixture equipment. Especially when the cushion cotton has self-adhesive, it can only be attached manually. However, there are the following defects in manually attaching the cushion cotton: First, it is very difficult to accurately position, and it is easy to shift when attaching the cushion cotton, resulting in poor performance and / or appearance, and there is also a problem of poor consistency; second, the operation efficiency is very low, the labor cost is very high, and the product manufacturing cost is relatively high. Summary of the Utility Model

[0004] The main technical problem to be solved by this application is to provide a fixture tool for attaching cushion cotton to speakers.

[0005] A fixture tool for attaching cushion cotton to speakers according to this application includes: a turntable for carrying and driving the speaker to rotate coaxially; a positioning fixture coaxially arranged above the turntable and capable of moving up and down, for covering the speaker but exposing the annular cushion cotton attachment area of the speaker; a side-stop fixture arranged on one side above the turntable, forming a gap for limiting the cushion cotton with the positioning fixture; when performing the cushion cotton attachment operation, the positioning fixture moves downward to be close to the speaker, and under the common limitation of the positioning fixture and the side-stop fixture, the cushion cotton is attached around the annular cushion cotton attachment area of the speaker as the speaker rotates.

[0006] In some optional embodiments, the speaker includes a bracket, a paper cone, and an R-ring. A step is provided on the inner side of the outer edge of the bracket. The R-ring includes an inner edge portion for bonding to the paper cone, an outer edge portion for bonding to the step, and an arc portion located between the inner edge portion and the outer edge portion; the area where the outer edge portion is located is the annular cushion cotton attachment area; in the top view direction, the positioning fixture covers the paper cone and the inner edge portion and the arc portion of the R-ring, exposing the outer edge portion of the R-ring.

[0007] In some alternative embodiments, the outer diameter of the positioning jig is equal to or slightly larger than the outer diameter of the arc portion of the R-ring.

[0008] In some alternative embodiments, a recess is formed at the bottom of the positioning jig for avoiding the R-ring.

[0009] In some alternative embodiments, a notch communicating with the recess is provided on the side of the positioning jig.

[0010] In some alternative embodiments, the interior of the positioning jig is hollow.

[0011] In some alternative embodiments, the end of the edge-blocking jig facing the positioning jig is arc-shaped.

[0012] In some alternative embodiments, a circular rotating member is provided at the end of the edge-blocking jig facing the positioning jig.

[0013] In some alternative embodiments, the speaker cushion cotton tooling further includes a pressing member for applying a downward pressure to the cushion cotton during the cushion cotton pasting operation. The pressing member is independently provided from the edge-blocking jig, or the pressing member is provided on the edge-blocking jig.

[0014] In some alternative embodiments, the speaker cushion cotton tooling further includes: a machine table plate for carrying the turntable and the edge-blocking jig; a motor provided on the machine table plate and connected to the turntable through a transmission member for driving the turntable to rotate; a lifting mechanism including a mounting bracket provided on the machine table plate and a cylinder fixed to the mounting bracket, the cylinder being used to connect the positioning jig and drive the positioning jig to move up and down; and an electrical control box provided on the machine table plate for controlling the motor and the cylinder.

[0015] As can be seen from the above technical solutions, the embodiments of the present application have the following advantages:

[0016] For the speaker cushion cotton tooling of the present application, the cushion cotton is jointly limited by the positioning jig and the edge-blocking jig, and the speaker is driven to rotate by the turntable, so that automatic cushion cotton pasting can be realized, reducing manual positioning and other operations, and improving the automation level; due to the limiting effect of the positioning jig and the edge-blocking jig, it can be ensured that the cushion cotton does not shift or skew, avoiding poor performance and appearance, improving the consistency, and ensuring high quality. Description of the Drawings

[0017] To more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments and the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 is the overall structural schematic diagram of the speaker pad cotton tooling of the embodiment of the present application;

[0019] Figure 2 is the partial structural schematic diagram of the speaker of the embodiment of the present application;

[0020] Figure 3 is the partial structural schematic diagram of the speaker pad cotton tooling of the embodiment of the present application. Detailed implementation manners

[0021] To enable those skilled in the art to better understand the solutions of the present application, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0022] The terms "first", "second", "third", etc. in the specification, claims and drawings of the present application are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products or devices.

[0023] The following will be described in detail through specific embodiments respectively.

[0024] Refer to Figure 1 , the present application proposes a speaker pad cotton tooling for attaching pad cotton to a speaker.

[0025] As Figure 1As shown in the figure, the speaker gasket cotton tooling of the present application includes: a turntable 01, a positioning jig 02, and a baffle jig 03. Among them, the turntable 01 is used to carry the speaker 04 and can drive the speaker 04 to rotate coaxially. The positioning jig 02 is coaxially arranged above the turntable 01, has a circular cross-section in the horizontal direction, can move up and down, and can move downward to be close to the speaker 04, and is used to cover the speaker 04 but expose the annular gasket cotton area of the speaker 04. The baffle jig 03 is arranged on one side above the turntable 01, and a gap equivalent to the width of the gasket cotton 05 is formed between the baffle jig 03 and the positioning jig 02 for limiting the gasket cotton 05. When performing the gasket cotton operation, the positioning jig 02 moves downward to be close to the speaker 04. Under the joint limitation of the positioning jig 02 and the baffle jig, the strip-shaped gasket cotton 05 is wound and attached to the annular gasket cotton area of the speaker 04 as the speaker 04 rotates.

[0026] Reference Figure 2 , in some optional embodiments, the speaker 04 may include a magnetic system, a vibration system, and a bracket 041 for carrying the magnetic system and the vibration system. The vibration system may include a paper cone 042, an R-ring 043, and a voice coil (not shown in the figure), etc. Among them, a circle of steps 0412 may be provided inside the outer edge 0411 of the bracket 041. The R-ring 043 may include an inner edge portion 0431 for bonding to the paper cone 042, an outer edge portion 0433 for bonding to the steps 0412 inside the outer edge of the bracket 041, and an arc portion 0432 located between the inner edge portion 0431 and the outer edge portion 0433. The aforementioned annular gasket cotton area may refer to the area where the outer edge portion 0432 of the R-ring 043 is located, that is, the gasket cotton 05 will be attached to the outer edge portion 0432 of the R-ring 043 and is located between the arc portion of the R-ring 043 and the outer edge 0411 of the bracket 041. In the top view direction, the positioning jig 02 can cover the paper cone 042 and the inner edge portion and the arc portion of the R-ring 043, while exposing the outer edge portion of the R-ring 043 to facilitate attaching the gasket cotton 05 on the outer edge portion.

[0027] When attaching the gasket cotton 05, one end of the gasket cotton 05 can be first attached to the front of the speaker 04, and then the turntable 01 is started to drive the speaker 04 to rotate one week, so as to attach a circle of gasket cotton 05 on the front of the speaker 04. During this process, if the gasket cotton 05 is not limited, the gasket cotton 05 is likely to shift, causing the gasket cotton 05 to be attached obliquely to the arc portion 0432 of the R-ring 043 or shift outside the bracket 041, resulting in poor appearance and performance.

[0028] In the embodiments of the present application, by providing a positioning jig 02, the cushioning cotton 05 can only be attached around the outside of the positioning jig 02. Since the positioning jig 02 covers the arc portion 0432 of the paper cone 042 and the R-ring 043, the cushioning cotton 05 cannot shift inward and will not be misaligned and attached to the arc portion 0432 of the R-ring 043. Additionally, by providing a retaining edge jig 03, the cushioning cotton 05 is limited inside the retaining edge jig 03, such that the cushioning cotton 05 cannot shift outward and will not shift to the outer edge 0411 of the bracket 041. In this way, automatic attachment of the cushioning cotton 05 is achieved, reducing manual positioning and other operations, improving the automation level; ensuring that the cushioning cotton 05 does not shift or skew, avoiding poor performance and appearance, improving consistency, and ensuring high quality.

[0029] In some alternative embodiments, the bottom surface of the cushioning cotton 05 has an adhesive layer.

[0030] In some alternative embodiments, as Figure 1 shown, the turntable 01 may be provided with avoidance holes to facilitate avoiding some structures of the speaker 04 when fixing the speaker 04. For example, avoiding its voice coil (for a speaker 04 that has not yet been connected to the magnetic system), or avoiding its magnetic system.

[0031] In some alternative embodiments, the positioning jig 02 is a cylinder, and the outer diameter of the positioning jig 02 is equal to or slightly larger than the outer diameter of the arc portion 0432 of the R-ring 043. In this way, the positioning jig 02 can cover above the front of the speaker 04, only exposing the annular cushioning cotton attachment area on the front of the speaker 04 (i.e., the outer edge portion 0433 of the R-ring 043) for attaching the cushioning cotton 05.

[0032] In some alternative embodiments, the outer diameter of the positioning jig 02 is smaller than the diameter of the outer edge 0411 of the bracket 041 of the speaker 04, and a region for attaching the cushioning cotton 05 is defined between the positioning jig 02 and the outer edge 0411 of the bracket 041. When viewed from the top-down direction, this region is an annular region. The width of this annular region is substantially equal to or slightly larger than the width of the cushioning cotton 05.

[0033] In some alternative embodiments, a recessed portion 021 for avoiding the R-ring 043 is formed at the bottom of the positioning jig 02. When the positioning jig 02 descends close to the speaker 04, the R-ring 043 can fall into the recessed portion 021. This makes the positioning jig 02 closer to the speaker 04 and better serves to limit the cushioning cotton 05.

[0034] In some alternative embodiments, a notch 022 communicating with the recessed portion 021 is provided on the side of the positioning jig 02. The notch 022 can be used to discharge the air inside the positioning jig 02 when the positioning jig 02 descends.

[0035] In some alternative embodiments, the interior of the positioning jig 02 is hollow. The hollow interior can reduce the weight of the jig 02, lower costs, and facilitate manufacturing. Exemplarily, the positioning jig 02 can be a cylindrical shape with an opening facing downwards.

[0036] In some alternative embodiments, the positioning jig 02 can be made of plastic, metal, or other materials.

[0037] In some alternative embodiments, the end of the edge-stop jig 03 facing the positioning jig 02 is arc-shaped. Since this end contacts the cushioning cotton 05, being set as an arc can avoid damaging the cushioning cotton 05.

[0038] In some alternative embodiments, a circular rotating member (such as a bearing) can be provided at the end of the edge-stop jig 03 facing the positioning jig 02. In this way, when the cushioning cotton 05 is driven / advances, the circular rotating member rotates accordingly, thereby further avoiding damaging the cushioning cotton 05.

[0039] In some alternative embodiments, the height of the positioning jig 02 is higher than that of the edge-stop jig 03.

[0040] In some alternative embodiments, the edge-stop jig 03 can include a vertical member and a horizontal member detachably connected to the vertical member. The end of the horizontal member faces the positioning jig 02 and is used to limit the cushioning cotton 05.

[0041] Reference Figure 3 , in some alternative embodiments, the speaker cushioning cotton tooling of the embodiment of the present application can further include a pressing member 031. The pressing member 031 is used to apply a downward pressure to the cushioning cotton 05 during the cushioning cotton pasting operation, so that the cushioning cotton adheres firmly to the speaker 04. Optionally, the pressing member 031 can be provided independently of the edge-stop jig 03. Alternatively, the pressing member 031 can also be provided on the edge-stop jig 03. For example, a protruding tongue is provided above the end of the edge-stop jig 03 as the pressing member 031, that is, the pressing member 031 and the edge-stop jig 03 can be integrally formed.

[0042] Reference Figure 1 , the speaker cushioning cotton tooling of the embodiment of the present application can further include: a machine table board 06, a motor 07, a lifting mechanism 08, and an electrical control box 09;

[0043] Among them, the machine table board 06 is used to carry the turntable 01, the edge stop fixture 03, the motor 07, the lifting mechanism 08 and the electrical control box 09. The motor 07 is arranged on the machine table board 06 and is connected to the turntable 01 through a transmission component (such as a belt or a chain) for driving the turntable 01 to rotate. The lifting mechanism 08 includes a mounting bracket 081 arranged on the machine table board 06 and a cylinder 082 fixed on the mounting bracket 081. The cylinder 082 is used to connect the positioning fixture 02 and drive the positioning fixture 02 to move up and down; the electrical control box 09 is arranged on the machine table board 06 for controlling the motor 07 and the cylinder 082.

[0044] In some alternative embodiments, the vertical member of the edge stop fixture 03 is fixedly connected to the machine table board 06.

[0045] In some alternative embodiments, the main body part of the motor 07 is arranged above the machine table board 06, and the rotating shaft of the motor 07 extends out below the machine table board 06. The rotating shaft can be connected to the part of the turntable 01 that extends out below the machine table board 06 through a transmission component, thereby driving the turntable 01 to rotate. Optionally, the motor 07 can be a high-precision servo motor.

[0046] In some alternative embodiments, the mounting bracket 081 of the lifting mechanism may include a vertical shaft, a sliding block connected to the vertical shaft and capable of sliding up and down relative to the vertical shaft, and a mounting plate connected to the sliding block. The cylinder 082 can be mounted downward on the mounting plate, the cylinder shaft passes through the mounting plate, and a fixing plate can be connected to the lower end of the cylinder shaft. The positioning fixture 02 can be fixedly connected to the fixing plate. Optionally, the fixing plate can be slidably connected to the mounting plate through a guiding shaft to ensure that the fixing plate only moves up and down along with the cylinder shaft in the vertical direction without lateral deviation. Optionally, a fixing block is also arranged on the vertical shaft below the sliding block, and the sliding block can be connected to the fixing block through a lead screw. By rotating the lead screw, the vertical height of the sliding block can be adjusted, thereby adjusting the initial height of the positioning fixture 02.

[0047] In some alternative embodiments, a switch for controlling the motor 07 and a solenoid valve for controlling the cylinder 082 are arranged in the electrical control box 09.

[0048] Above, the embodiments of the present application propose a loudspeaker cushion cotton tooling, and its working principle includes:

[0049] 1. The motor 07 drives the turntable 01 to rotate the loudspeaker 04, and the positioning fixture 02 presses down to cover and limit the loudspeaker 05, only exposing the annular cushion cotton area of the loudspeaker 05, thereby preventing the cushion cotton 05 from shifting inward during the pasting process and sticking to the arc part 0432 of the R ring 043;

[0050] 2. The cushion cotton 05 is limited by the edge stop fixture 03 on the side to prevent the cushion cotton 05 from shifting outward during the pasting process;

[0051] 3. The cushioning cotton 05 relies on the downward pressure of the pressing member 031 to achieve good adhesion, ensuring that the cushioning cotton 05 bears a certain downward pressure and firmly adheres to the speaker 04;

[0052] 4. Ensure that the initial placement of the cushioning cotton 05 is correct. The turntable 01 rotates clockwise (or counterclockwise), and the operator can quickly perform the adhesion by pulling the cushioning cotton 05 counterclockwise (or clockwise);

[0053] 5. After the adhesion is completed, the cushioning cotton 05 can be adjusted by pressing if necessary, and then it can be fed into the next process.

[0054] The advantages of the speaker cushioning cotton tooling according to the embodiment of the present application include, but are not limited to:

[0055] The speaker cushioning cotton tooling of the present application has functions such as cushioning cotton positioning and the turntable driving the speaker to rotate automatically. It also has the function of fixing and attaching the cushioning cotton by pressing down, and can achieve the effect of automatic cushioning cotton attachment. It can reduce key operations such as manual positioning, and can improve the effect of cushioning cotton attachment. Especially when the cushioning cotton is a soft material such as foam, and the attachment position is small, and the cushioning cotton has its own adhesive, the attachment operation can be carried out better and more efficiently.

[0056] The speaker cushioning cotton tooling of the present application can quickly and accurately attach the cushioning cotton to the speaker, enabling the speaker to have better shock absorption during assembly, reducing the deviation, skew, etc. caused by manual attachment or the lack of positioning tooling in the market, and greatly reducing the appearance defects, rework costs, etc. Moreover, most importantly, when initially designing the product, there is no need to worry about the distance between the bracket edge and the R-ring arc part. As long as this distance is slightly larger than the width of the cushioning cotton and there is a certain position, the cushioning cotton can be placed within the attachment limit, and using this tooling can meet the process production requirements. At the same time, when the distance between the bracket edge and the R-ring arc part is small, when manually placing and attaching it conventionally, the finger is very likely to touch it, greatly increasing the attachment difficulty. Therefore, during the entire attachment process of this cushioning cotton tooling, it is positioned by the fixture, which can solve this problem.

[0057] In addition, after the speaker is placed on the T-iron positioning fixture, the upper die fixture presses down. The upper die fixture can effectively avoid the paper cone R-ring. The operator places the cushioning cotton within the attachment limit, which plays a role in positioning, protection, and reducing defects. Moreover, for the product attached by this cushioning cotton tooling, compared with the conventional process, the appearance consistency and the attachment strength of the cushioning cotton are unified, greatly improving the quality stability of the product, significantly reducing the production beat, and effectively improving the yield. After this tooling is introduced, calculated at 600 pcs / H, it can reach a beat of 9s after testing, and only 2 people are needed to place the cushioning cotton on the production line to meet the requirements.

[0058] During the production process of this application, the production process cycle is significantly reduced, enabling the attachment of a front speaker cushion in 9S. Compared with the conventional manual cushion attachment cycle of 35S, the production efficiency is increased by 400%. At the same time, it can efficiently attach soft and adhesive-backed cushions, breaking through the problem of slow cushion attachment efficiency in the industry. By using semi-automatic tooling instead of manual methods, while improving the product quality stability, the production efficiency is greatly enhanced, achieving lean production.

[0059] As described above, the technical solutions of this application have been detailed through specific embodiments. In the above embodiments, the descriptions of each embodiment have their own focuses. For parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0060] It should be understood that the above embodiments are only used to illustrate the technical solutions of this application, rather than to limit it. Those of ordinary skill in the art can modify the technical solutions recorded in the above embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and protection scope of the technical solutions of each embodiment of this application.

Claims

1. A loudspeaker pad cotton tooling, characterized in that: include: A turntable, used to carry and drive the loudspeaker to rotate coaxially; A positioning jig is coaxially arranged above the turntable and can move up and down, and is used to cover the speaker but expose the annular pad cotton area of ​​the speaker; A side retaining fixture is arranged on one side above the rotating disk, and a gap for limiting the padding is formed between the side retaining fixture and the positioning fixture; When the padding operation is performed, the positioning jig moves downward to be close to the speaker, and the padding cotton surrounds the annular padding cotton area attached to the speaker as the speaker rotates under the common limitation of the positioning jig and the retaining edge jig.

2. The loudspeaker padding cotton tooling according to claim 1, characterized in that: The speaker includes a bracket, a paper cone and an R-ring. A step is provided on the inner side of the outer edge of the bracket. The R-ring includes an inner edge portion for bonding to the paper cone, an outer edge portion for bonding to the step, and an arc portion located between the inner edge portion and the outer edge portion. The area where the outer edge portion is located is the annular padding cotton area. In the top view direction, the positioning jig covers the paper cone and the inner edge and arc portion of the R-ring, exposing the outer edge portion of the R-ring.

3. The loudspeaker padding cotton tooling according to claim 2, characterized in that: The outer diameter of the positioning fixture is equal to or slightly larger than the outer diameter of the arc portion of the R ring.

4. The loudspeaker padding cotton tooling according to claim 3, characterized in that: A recessed portion for avoiding the R ring is formed at the bottom of the positioning fixture.

5. The loudspeaker padding tooling according to claim 4, characterized in that: A notch communicating with the recessed portion is provided on the side of the positioning fixture.

6. The loudspeaker padding cotton tooling according to claim 4, characterized in that: The interior of the positioning fixture is hollow.

7. The loudspeaker padding tooling according to claim 1, characterized in that: The end of the retaining edge fixture facing the positioning fixture is in an arc shape.

8. The loudspeaker padding tooling according to claim 1, characterized in that: The end of the edge retaining fixture facing the positioning fixture is provided with a circular rotating part.

9. The loudspeaker padding cotton tooling according to claim 1, characterized in that: It also includes a pressing piece, which is used to apply a downward pressure to the padding when applying the padding. The pressing piece is independently arranged from the edge retaining fixture, or the pressing piece is arranged on the edge retaining fixture.

10. The loudspeaker padding tooling according to any one of claims 1 to 9, characterized in that: Also includes: A machine plate, used for carrying the turntable and the edge retaining fixture; A motor, disposed on the machine plate, connected to the turntable through a transmission component, and used to drive the turntable to rotate; A lifting mechanism, comprising a mounting frame arranged on the machine plate and a cylinder fixed on the mounting frame, wherein the cylinder is used to connect the positioning fixture and drive the positioning fixture to move up and down; An electrical control box is arranged on the machine plate and is used for controlling the motor and the cylinder.

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