TW202127915A - Loudspeaker vibrating diaphragm with low halogen content and manufacturing method thereof capable of reducing halogen content to meet regulations but maintaining certain heat resistance and robustness - Google Patents

Abstract

The invention provides a manufacturing method for loudspeaker vibrating diaphragm with low halogen content, which includes the steps of preparation, weaving, impregnating, drying, shaping, and cutting to obtain the loudspeaker vibrating diaphragm with low halogen content. Thus, the invention may limit the total number of aromatic polyamide fibers to be less than 25% of the total number of fibers in the cloth, and the total number of other fibers to be more than 75% of the total number of fibers in the cloth, so that the total number of aromatic polyamide fibers in the main body of the loudspeaker vibrating diaphragm with low halogen content may be limited to less than 25% of the total number of fibers in the main body, and the total number of other fibers to be more than 75% of the total number of fibers in the main body. Thus, the halogen content of the loudspeaker vibrating diaphragm with low halogen content of the invention may be reduced to meet the regulations of every country but maintain a certain degree of heat resistance and robustness.

Description

Horn vibrating plate with low halogen content and manufacturing method thereof

The invention relates to a horn vibrating plate and a manufacturing method thereof, in particular to a horn vibrating plate with low halogen content and a manufacturing method thereof.

Please refer to FIG. 1 and FIG. 2. FIG. 1 is a schematic diagram of the horn structure, and FIG. 2 is a three-dimensional view of three types of horn vibrating plates, including the diaphragm 1A, the elastic wave 1B, and the suspension 1C. A typical moving coil horn 1 includes a diaphragm 1A, a suspension system, and a power system. The function of the diaphragm 1A is to move air, and is generally a cone or hemispherical cone. The suspension system is composed of the elastic wave 1B and the suspension edge 1C, and is used to pull the directional movement of the diaphragm 1A. The power system includes a voice coil 1D and a permanent magnet 1E, and can make the diaphragm 1A vibrate, so that the air vibrates and the audio is transmitted to the human ear, achieving the purpose of sound restoration for human listening, and realizing the conversion of electric energy to sound energy .

Generally, the non-metal parts contained in the speaker 1 are made of cloth materials. The main reason is that the specially processed cloth materials have appropriate elasticity and strength, and can provide the required functions when the horn is activated, such as vibration Membrane 1A, elastic wave 1B, suspension edge 1C, or drum paper (not shown in the figure) in a small speaker are all. Such non-metal parts are collectively referred to as a horn vibrating plate.

The conventional horn vibrating plate manufacturing method includes the following steps: preparation step: preparing a plurality of yarns; knitting step: a cloth material is woven from the yarns; impregnation step: cloth material is impregnated with a resin solution; drying step: cloth The material is dried to form a solid resin layer; the forming step: hot-press forming a predetermined shape of the horn vibrating plate on the cloth; and the cutting step: cutting the predetermined shape of the horn vibrating plate on the cloth, and cut The predetermined shape of the horn vibrating plate is a horn vibrating plate (for example, the diaphragm 1A, the elastic wave 1B, the suspension edge 1C or the drum paper in a small horn shown in FIG. 2). The cost of the speaker diaphragm accounts for a very small proportion of the cost of the entire group of speakers, but it plays a key role in the sound quality of the speakers.

Environmental awareness is gradually rising, and major factories have begun to pay attention to halogen-free environmental protection. Because the materials in the manufacturing process contain halogens (fluorine, chlorine, bromine, iodine), they may degrade to produce hydrogen halides during processing, which will corrode equipment, be difficult to recycle, and may be burned. Releases carcinogens. Therefore, many manufacturers now require the use of halogen-free materials.

At present, the latest environmental protection trend has begun to move towards halogen-free products, and major international manufacturers including one after another have declared that they will start introducing halogen-free materials in 2008. The Norwegian PoHS Act, which is about to be implemented in 2008, has clearly regulated 18 hazardous substances that must be excluded. Therefore, following the EU's RoHS directive, international laws will be set up to restrict the use of halogen-free products. The introduction of halogen-free materials has become the next stage of greening goals for major factories, and the mass production schedule of halogen-free products has begun to be formulated.

Aromatic polyamide fiber (abbreviated as aramid fiber) is a heat-resistant and strong synthetic fiber, which is quite suitable as a material for horn vibrating plate. The preparation method of aromatic polyamide fiber is as follows:

1. Using p-aminoformyl chloride hydrochloride or meta-aminobenzyl chloride hydrochloride or p-thionylaminobenzyl chloride as raw materials, in an organic polar solvent containing lithium chloride (such as dimethyl ethyl Amide), which is obtained by condensation polymerization of the base solution.

2. Using the N-phosphate of pyridine as a catalyst, it is obtained by direct condensation polymerization of p-aminotoluic acid in an organic polar solvent containing lithium chloride.

The resulting polymer liquid can be spun directly, or the polymer can be precipitated and separated into a powdered polymer, and then dissolved in a lithium chloride-containing amide solvent (such as dimethylacetamide) It is formulated into anisotropic spinning solution, and then spins by dry, wet or dry-wet method. After the nascent fiber is washed and dried, it is heat-treated with tension in a heat pipe at 500~600℃ to obtain a fiber made by polycondensation of para-aminobenzoic acid. The relative density is 1.45, the strength is 1.50~1.94N/tex, the elongation is about 2%, and the modulus is about 2%. 88.30~91.83N/tex, melting temperature is about 500℃, good heat resistance, after exposure to 300℃ for 75 hours, the strength retention rate is 67%, and the modulus retention rate is 92%. It can be used as a reinforcement for composite materials.

The fiber is made by using m-aminobenzyl chloride hydrochloride as the monomer and dimethylacetamide as the solvent through low-temperature solution polycondensation, dry or wet spinning. The strength is 0.51N/tex, and the elongation is 10%. , Modulus 10.41N/tex, good heat resistance and thermal stability, strength at 300℃ 0.26N/tex, elongation 7.5%, modulus 7.85 elongation, placed at 300℃ for several weeks or heated at 400℃ for 1 hour It is still stable after heating. After heating at 500°C for 1 minute, the strength does not change, and the zero-strength temperature is 480°C. In addition, it also has good corrosion resistance and radiation resistance.

It can be seen from the above that during the manufacturing process of the aromatic polyamide fiber, the material contains halogen, so that the prepared aromatic polyamide fiber contains halogen. Therefore, horn diaphragms made of aromatic polyamide fibers also contain halogens.

Because the heat resistance and toughness of aromatic polyamide fiber are unmatched by other fibers, it is the first choice for the material of horn diaphragm, but the halogen contained in aromatic polyamide fiber cannot be removed, which discourages manufacturers. .

In addition, the multifilament yarn (also called twisted yarn, combined yarn, multifilament, multifilament or multi-stranded gland) formed by mixing and twisting multiple different types of fibers requires special customization, so the price is relatively high. Expensive, making the price of the horn vibrating piece woven from the multifilament wire body is particularly expensive.

In addition, if the horn vibrating plate is woven from a plurality of multifilament yarns, once the composition of the horn vibrating plate is to be changed, it is necessary to order a multifilament yarn formed by mixing and twisting multiple different types of fibers. Increase manufacturing costs.

The main purpose of the present invention is to provide a horn vibrating plate with low halogen content and a manufacturing method thereof, the halogen content is reduced to conform to the standards of various countries, and a certain degree of heat resistance and toughness can be maintained.

Another object of the present invention is to provide a horn vibrating plate with low halogen content and a manufacturing method thereof. All the yarns are monofilament yarns, which has the advantage of low price.

Another object of the present invention is to provide a low-halogen horn vibrating plate and a manufacturing method thereof. The type of fiber is selected according to requirements, so as to achieve the effect of adjusting the composition and reduce the manufacturing cost.

In order to achieve the foregoing objective, the present invention provides a method for manufacturing a horn vibrating plate with low halogen content, which includes the following steps:

Preparation steps: prepare a plurality of first yarns and a plurality of second yarns, each first yarn is a monofilament yarn composed of a single aromatic polyamide fiber, and each second yarn is a monofilament yarn composed of a single other fiber body.

Knitting step: a cloth material is woven by the first yarns and the second yarns, and the total number of the first yarns occupies less than 25% of the total number of yarns in the cloth material. The total number of second yarns occupies more than 75% of the total number of yarns in the cloth material.

Impregnation step: the cloth material is impregnated in a resin solution.

Drying step: drying the cloth material to form a solid resin layer on the cloth material.

Forming step: hot-press forming a predetermined shape of a horn vibrating plate on the cloth material.

Cutting step: cutting the predetermined shape of the horn vibrating plate on the cloth material, and the cut out the predetermined shape of the horn vibrating plate is a horn vibrating plate with low halogen content.

Preferably, other fibers are selected from bamboo fibers, cotton fibers, silk fibers, hemp fibers, wool fibers, polyester fibers, acrylic fibers, polyethylene naphthene fibers, rayon fibers, rubber fibers, nylon fibers, and elastic fibers. One of fiber, acetate fiber, or a combination thereof.

Preferably, all the first yarns are warp yarns or weft yarns, some of the second yarns are warp yarns, and some of the second yarns are weft yarns.

Preferably, part of the first yarn is warp yarn, part of the first yarn is weft yarn, part of the second yarn is warp yarn, and part of the second yarn is weft yarn.

Preferably, the types of the other fibers as the second yarns are all the same or all are different, or some are the same and some are different.

In order to achieve the foregoing objective, the present invention provides a low halogen content horn vibrating plate, which is manufactured by the low halogen content horn vibrating plate manufacturing method, and includes a body and a resin solid layer.

The main body is woven from a plurality of first yarns and a plurality of second yarns. Each first yarn is a monofilament yarn composed of a single aromatic polyamide fiber, and each second yarn is a single monofilament composed of a single other fiber. Silk body, the total number of the first yarns occupies less than 25% of the total number of yarns in the main body, and the total number of the second yarns occupies more than 75% of the total number of yarns in the main body .

The resin solid layer is arranged on the body.

Preferably, other fibers are selected from bamboo fibers, cotton fibers, silk fibers, hemp fibers, wool fibers, polyester fibers, acrylic fibers, polyethylene naphthene fibers, rayon fibers, rubber fibers, nylon fibers, and elastic fibers. One of fiber, acetate fiber, or a combination thereof.

Preferably, all the first yarns are warp yarns or weft yarns, some of the second yarns are warp yarns, and some of the second yarns are weft yarns.

Preferably, part of the first yarn is warp yarn, part of the first yarn is weft yarn, part of the second yarn is warp yarn, and part of the second yarn is weft yarn.

Preferably, the types of the other fibers as the second yarns are all the same or all are different, or some are the same and some are different.

The effect of the present invention is that by limiting the total number of aromatic polyamide fibers in the cloth to less than 25% of the total number of fibers in the cloth, the total number of other fibers is limited to the cloth. 75% or more of the total number of fibers of the present invention, so that the total number of aromatic polyamide fibers in the main body of the low halogen content horn vibrating plate of the present invention is limited to 25% or less of the total number of fibers in the main body, The total number of other fibers is limited to more than 75% of the total number of fibers in the body, so that the halogen content of the low halogen content horn vibrating plate of the present invention is reduced to comply with national standards, and it can also maintain a certain degree of heat resistance and toughness. Spend.

Furthermore, the first yarns and the second yarns of the main body of the low halogen content horn vibrating plate of the present invention are all monofilament yarns, and the monofilament yarns are generally circulated in the market and the price is relatively low. The horn vibrating piece with low halogen content of the present invention has the advantage of low price.

In addition, in the present invention, the types of other fibers as the second yarn can be selected according to requirements, so as to achieve the effect of adjusting the composition of the low halogen content horn vibrating plate of the present invention and reduce the manufacturing cost.

The following describes the embodiments of the present invention in more detail with the drawings and component symbols, so that those who are familiar with the art can implement it after studying this specification.

Please refer to FIGS. 3 to 4C, which are a flowchart of the manufacturing method of the present invention, a schematic diagram of the manufacturing method of the first embodiment, a schematic diagram of the cloth material 20 of the first embodiment, and a low halogen content speaker of the first embodiment. Schematic diagram of the vibrating plate. The present invention provides a method for manufacturing a horn vibrating plate with low halogen content, which includes the following steps:

Preparation step S1: prepare a plurality of first yarns 11 and a plurality of second yarns 12, each first yarn 11 is a monofilament yarn body composed of a single aromatic polyamide fiber, and each second yarn 12 is a single other yarn A monofilament thread composed of fibers. The monofilament thread body can also be called a single yarn, a monofilament, a single thread body or a single strand thread body. As the name implies, other fibers are fibers other than aromatic polyamide fibers. Preferably, other fibers are selected from bamboo fibers, cotton fibers, silk fibers, hemp fibers, wool fibers, polyester fibers, acrylic fibers, polyethylene naphthene fibers, rayon fibers, rubber fibers, nylon fibers, and elastic fibers. One of fiber, acetate fiber, or a combination thereof. However, it is not limited to this, and any fiber suitable as a horn diaphragm other than the aromatic polyamide fiber can be the other fiber.

Knitting step S2: a cloth material 20 is woven from the first yarns 11 and the second yarns 12, and the total number of the first yarns 11 occupies the total number of yarns of the cloth material 20 The total number of the second yarns 12 accounts for more than 75% of the total number of yarns of the cloth material 20. In other words, the total number of aromatic polyamide fibers occupies 25% or less of the total number of fibers in the cloth material 20, and the total number of other fibers occupies more than 75% of the total number of fibers in the cloth material 20.

Impregnation step S3: the cloth material 20 is impregnated in a resin solution 31. More specifically, a resin tank 30 contains a resin solution 31, and the cloth material 20 is impregnated in the resin solution 31 in the resin tank 30, so that the first yarns 11 and the second yarns 12 are adsorbed And adhesive resin. The resin contains solids such as alcohol and water, which account for more than 50% of the liquid resin. The resin component is selected from one or a combination of phenolic resin, epoxy resin, polyester resin, rubber, silicone rubber, or other resin materials with the same properties.

Drying step S4: drying the cloth material 20 to form a solid resin layer 21 on the cloth material 20. More specifically, the cloth material 20 is moved to a drying device 40 to dry the moisture in the resin on the cloth material 20 to form the resin solid layer 21, thereby allowing the cloth material 20 to have appropriate hardness, elasticity and toughness.

Forming step S5: forming a predetermined shape 22 of a horn vibrating plate on the cloth material 20 by hot pressing. In more detail, the cloth material 20 is moved to a hot press forming device 50. The hot press forming device 50 includes a heating structure (not shown) and a forming mold 52. The forming mold 52 includes an upper mold 521 and a lower mold. 522. The heating structure heats the upper mold 521 and the lower mold 522 of the forming mold 52, so that the upper mold 521 and the lower mold 522 of the forming mold 52 press and heat the cloth material 20 to form a horn on the cloth material 20 to vibrate. The predetermined shape of the sheet 22.

Cutting step S6: cutting the predetermined shape 22 of the horn vibrating plate on the cloth material 20, and the cut-out predetermined shape 22 of the horn vibrating plate is a horn vibrating plate 70 with low halogen content. More clearly, the cloth material 20 moves to a cutting device 60. The cutting device 60 includes an upper cutter 61 and a lower cutter 62. The upper cutter 61 and the lower cutter 62 remove the predetermined shape 22 of the horn vibrating plate from the cloth. The material 20 is cut away so that the predetermined shape 22 of the horn diaphragm is separated from the cloth material 20.

As shown in FIG. 4C, the present invention provides a low halogen content horn vibrating plate 70, which is manufactured by the aforementioned low halogen content horn vibrating plate manufacturing method, and includes a body 71 and a resin solid layer 72.

The main body 71 is woven from a plurality of first yarns 11 and a plurality of second yarns 12, each first yarn 11 is a monofilament yarn body composed of a single aromatic polyamide fiber, and each second yarn 12 is a single yarn Monofilament yarn body composed of other fibers, the total number of the first yarns 11 occupies less than 25% of the total number of yarns in the body 71, and the total number of the second yarns 12 occupies the entire body 71 More than 75% of the number of yarns. In other words, the total number of aromatic polyamide fibers occupies 25% or less of the total number of fibers in the main body 71, and the total number of other fibers occupies more than 75% of the total number of fibers in the main body 71. The monofilament thread body can also be called a single yarn, a monofilament, a single thread body or a single strand thread body. As the name implies, other fibers are fibers other than aromatic polyamide fibers. Preferably, other fibers are selected from bamboo fibers, cotton fibers, silk fibers, hemp fibers, wool fibers, polyester fibers, acrylic fibers, polyethylene naphthene fibers, rayon fibers, rubber fibers, nylon fibers, and elastic fibers. One of fiber, acetate fiber, or a combination thereof. However, it is not limited to this, and any fiber suitable as the low-halogen horn diaphragm 70 of the present invention other than the aromatic polyamide fiber may be the other fiber.

The resin solid layer 72 is provided on the body 71. Specifically, the composition of the resin solid layer 72 is selected from one or a combination of phenolic resin, epoxy resin, polyester resin, rubber, silicone, etc., or other resin materials with the same properties.

As shown in Figure 4A, in the preparation step S1 of the first embodiment, 50% of the warp yarns use the first yarn 11, 50% of the warp yarns use the second yarn 12, and all the weft yarns use the second yarn 12 as The types of the other fibers of the second yarns 12 may be all the same or different, or partly the same and partly different. As shown in FIG. 4B, in the knitted fabric 20, 50% of the warp yarns are the first yarn 11, 50% of the warp yarns are the second yarn 12, and all the weft yarns are the second yarn 12. Therefore, the total number of the first yarns 11 occupies 25% of the total number of yarns of the cloth material 20, and the total number of the second yarns 12 occupies the total number of yarns of the cloth material 20 75% of it. In other words, the total number of aromatic polyamide fibers occupies 25% of the total number of fibers in the cloth material 20, and the total number of other fibers occupies 75% of the total number of fibers in the cloth material 20.

As shown in FIG. 4C, in the low halogen content horn vibrating plate 70 made in the first embodiment, 50% of the warp yarns are the first yarn 11, 50% of the warp yarns are the second yarn 12, and all the weft yarns It is the second yarn 12, and the types of the other fibers as the second yarns 12 may be all the same or different, or partly the same and partly different. Therefore, the total number of the first yarns 11 occupies 25% of the total number of yarns in the main body 71, and the total number of the second yarns 12 occupies 75% of the total number of yarns in the main body 71. %. In other words, the total number of aromatic polyamide fibers occupies 25% of the total number of fibers in the main body 71, and the total number of other fibers occupies 75% of the total number of fibers in the main body 71.

In the preparation step S1 of other embodiments, the first yarn 11 is selected for 50% of the weft yarns, the second yarn 12 is selected for 50% of the weft yarns, and the second yarn 12 is selected for all the warp yarns as the second yarns 12 The types of the other fibers can be all the same or all different or partly the same and partly different, and the same results as in the first embodiment can also be obtained.

In the preparation step S1 of other embodiments, 25% of the warp yarns are selected as the first yarn 11, 75% of the warp yarns are selected as the second yarn 12, 25% of the weft yarns are selected as the first yarn 11, and 75% of the weft yarns are selected as the second yarn. For the yarns 12, the types of other fibers as the second yarns 12 may be all the same or different in all or partly the same and partly different, and the same results as in the first embodiment can also be obtained.

Please refer to FIG. 5A. FIG. 5A is a schematic diagram of the manufacturing method of the second embodiment of the present invention, and please cooperate with FIG. 3. In the preparation step S1 of the second embodiment, 33.33% of the warp yarns are selected as the first yarn 11, 66.67% of the warp yarns are selected as the second yarn 12, 12A, and all the weft yarns are selected as the second yarn 12, 12A. There are a total of two types of other fibers of the second yarns 12 and 12A. Please refer to FIG. 5B. FIG. 5B is a schematic diagram of the cloth material 20A according to the second embodiment of the present invention. In the woven fabric 20A, 33.33% of the warp yarns are the first yarn 11, 66.67% of the warp yarns are the second yarns 12 and 12A, and all the weft yarns are the second yarns 12 and 12A. There are two types of other fibers in the yarns 12 and 12A. Therefore, the total number of the first yarns 11 occupies 16.67% of the total number of yarns of the cloth material 20A, and the total number of the second yarns 12 and 12A occupies the total number of yarns of the cloth material 20A. 83.33% of the number. In other words, the total number of aromatic polyamide fibers occupies 16.67% of the total number of fibers in the cloth material 20A, and the total number of other fibers occupies 83.33% of the total number of fibers in the cloth material 20A.

Please refer to FIG. 5C. FIG. 5C is a schematic diagram of a horn vibrating piece 70A with a low halogen content according to a second embodiment of the present invention. In the low halogen content horn vibrating plate 70A made in the second embodiment, 33.33% of the warp yarns are the first yarn 11, 66.67% of the warp yarns are the second yarns 12, 12A, and all the weft yarns are the second yarns. There are a total of two types of threads 12 and 12A as other fibers of the second yarns 12 and 12A. Therefore, the total number of the first yarns 11 occupies 16.67% of the total number of yarns in the main body 71A, and the total number of the second yarns 12 and 12A occupies the total number of yarns in the main body 71A. 83.33% of the total. In other words, the total number of aromatic polyamide fibers accounted for 16.67% of the total number of fibers in the main body 71A, and the total number of other fibers accounted for 83.33% of the total number of fibers in the main body 71A.

In the preparation step S1 of other embodiments, 33.33% of the weft yarns use the first yarn 11, 66.67% of the weft yarns use the second yarns 12, 12A, and all the warp yarns use the second yarns 12, 12A as the first yarns. The types of the other fibers of the two yarns 12 and 12A may be all the same or different in all or partly the same and partly different, and the same results as in the second embodiment can also be obtained.

In the preparation step S1 of other embodiments, 16.67% of the warp yarns are selected as the first yarn 11, 83.33% of the warp yarns are selected as the second yarn 12, 12A, 16.67% of the weft yarns are selected as the first yarn 11, and 83.33% of the weft yarns are selected. The types of the second yarns 12 and 12A as the other fibers of the second yarns 12 and 12A may be all the same or different or partly the same and partly different, and the same results as in the second embodiment can also be obtained.

Please refer to FIG. 6A. FIG. 6A is a schematic diagram of the manufacturing method of the third embodiment of the present invention, and matches FIG. 3. In the preparation step S1 of the third embodiment, 25% of the warp yarns are selected from the first yarn 11, 75% of the warp yarns are selected from the second yarns 12, 12A, 12B, and all the weft yarns are selected from the second yarn 12, 12A, 12B. There are three types of other fibers as the second yarns 12, 12A, and 12B. Please refer to FIG. 6B. FIG. 6B is a schematic diagram of a cloth material 20B according to a third embodiment of the present invention. In the woven fabric 20B, 25% of the warp yarns are the first yarn 11, 75% of the warp yarns are the second yarns 12, 12A, 12B, and all the weft yarns are the second yarns 12, 12A, 12B, as There are a total of three types of other fibers of the second yarns 12, 12A, and 12B. Therefore, the total number of the first yarns 11 occupies 12.5% of the total number of yarns of the cloth material 20B, and the total number of the second yarns 12, 12A, 12B occupies all the yarns of the cloth material 20B. 87.5% of the number of lines. In other words, the total number of aromatic polyamide fibers occupies 12.5% of the total number of fibers in the cloth material 20B, and the total number of other fibers occupies 87.5% of the total number of fibers in the cloth material 20B.

Please refer to FIG. 6C. FIG. 6C is a schematic diagram of a horn vibrating plate 70B with a low halogen content according to a third embodiment of the present invention. In the low halogen content horn vibrating plate 70B made in the third embodiment, 25% of the warp yarns are the first yarn 11, 75% of the warp yarns are the second yarns 12, 12A, 12B, and all the weft yarns are the first yarns 12, 12A, and 12B. There are three types of the second yarns 12, 12A, and 12B as the other fibers of the second yarns 12, 12A, and 12B. Therefore, the total number of the first yarns 11 occupies 12.5% of the total number of yarns in the body 71B, and the total number of the second yarns 12, 12A, 12B occupies the total number of yarns in the body 71B. 87.5% of the number. In other words, the total number of aromatic polyamide fibers occupies 12.5% of the total number of fibers in the main body 71B, and the total number of other fibers occupies 87.5% of the total number of fibers in the main body 71B.

The horn vibrating plate 70, 70A, and 70B with low halogen content of the present invention can be the diaphragm of a moving coil horn, the elastic wave, the hanging edge or the drum paper in a small horn, etc., which belong to the horn vibrating plate system.

In summary, the present invention limits the total number of aromatic polyamide fibers in cloth materials 20, 20A, and 20B to 25% or less of the total number of fibers in cloth materials 20, 20A, and 20B, and other The total number of fibers is limited to more than 75% of the total number of fibers of the cloth materials 20, 20A, and 20B, so that the low halogen content horn vibrating plate 70, 70A, 70B of the present invention is in the main body 71, 71A, 71B The total number of aromatic polyamide fibers is limited to less than 25% of the total number of fibers in the main body 71, 71A, 71B, and the total number of other fibers is limited to the total number of fibers in the main body 71, 71A, 71B 75% or more, so that the halogen content of the low halogen content horn vibrating piece 70, 70A, 70B of the present invention is reduced to comply with national standards, and it can also maintain a certain degree of heat resistance and toughness.

Furthermore, the first yarn 11 and the second yarn 12, 12A, 12B of the main body 71, 71A, 71B of the low halogen content horn vibrating piece 70, 70A, 70B of the present invention are all monofilament yarns. However, the monofilament wire body is generally circulated in the market, and the price is relatively low. Therefore, the low halogen content horn vibrating piece 70, 70A, 70B of the present invention has the advantage of low price.

In addition, the present invention can select the types of other fibers as the second yarns 12, 12A, 12B according to requirements, so as to achieve the effect of adjusting the composition of the low halogen content horn vibrating plates 70, 70A, 70B of the present invention, and reduce manufacturing costs. .

The above descriptions are only used to explain the preferred embodiments of the present invention, and are not intended to restrict the present invention in any form. Therefore, any modification or change related to the present invention is made under the same spirit of the invention. , Should still be included in the scope of the invention's intention to protect.

1: Moving coil speaker 1A: diaphragm 1B: Bouncing 1C: Overhang 1D: Voice coil 1E: permanent magnet S1: Preparation steps S2: Weaving step S3: impregnation step S4: drying step S5: Hot press forming step S6: Cutting steps 11: The first yarn 12, 12A, 12B: second yarn 20, 20A, 20B: cloth material 21: Resin solid layer 22: The predetermined shape of the horn vibrating plate 30: Resin tank 31: Resin solution 40: Drying device 50: Hot press forming device 52: Forming mold 521: upper die 522: lower die 60: Cutting device 61: Upper cutter 62: lower cutter 70, 70A, 70B: horn vibrating plate 71, 71A, 71B: body 72: Resin solid layer

Figure 1 is a schematic diagram of the horn structure. Figure 2 is a three-dimensional view of three types of horn vibrating plates, such as diaphragm, elastic wave and suspension. Fig. 3 is a flowchart of the manufacturing method of the present invention. Fig. 4A is a schematic diagram of the manufacturing method of the first embodiment of the present invention. Fig. 4B is a schematic diagram of the cloth material of the first embodiment of the present invention. Fig. 4C is a schematic diagram of the horn vibrating piece with low halogen content according to the first embodiment of the present invention. Fig. 5A is a schematic diagram of the manufacturing method of the second embodiment of the present invention. Fig. 5B is a schematic diagram of the cloth material of the second embodiment of the present invention. Fig. 5C is a schematic diagram of a horn vibrating piece with a low halogen content according to a second embodiment of the present invention. Fig. 6A is a schematic diagram of the manufacturing method of the third embodiment of the present invention. Fig. 6B is a schematic diagram of the cloth material of the third embodiment of the present invention. Fig. 6C is a schematic diagram of a horn vibrating piece with a low halogen content according to a third embodiment of the present invention.

S1: Preparation steps

S2: Weaving step

S3: impregnation step

S4: drying step

S5: Hot press forming step

S6: Cutting steps

11: The first yarn

12: Second yarn

20: Cloth

22: The predetermined shape of the horn vibrating plate

30: Resin tank

31: Resin solution

40: Drying device

50: Hot press forming device

52: Forming mold

521: upper die

522: lower die

60: Cutting device

61: Upper cutter

62: lower cutter

70: Horn vibrating plate

Claims (10)

A method for manufacturing a horn vibrating plate with low halogen content includes the following steps: Preparation steps: prepare a plurality of first yarns and a plurality of second yarns, each first yarn is a monofilament yarn body composed of a single aromatic polyamide fiber, and each second yarn is a monofilament yarn composed of a single other fiber body; Knitting step: a cloth material is woven by the first yarns and the second yarns, the total number of the first yarns occupies less than 25% of the total number of yarns in the cloth material, The total number of the second yarns occupies more than 75% of the total number of yarns of the cloth; Impregnation step: the cloth material is impregnated in a resin solution; Drying step: drying the cloth material to form a solid resin layer on the cloth material; Forming step: hot-press forming a predetermined shape of a horn vibrating plate on the cloth; and Cutting step: cutting the predetermined shape of the horn vibrating plate on the cloth material, and the cut out the predetermined shape of the horn vibrating plate is a horn vibrating plate with low halogen content. The method for manufacturing a low halogen content horn vibrating plate according to claim 1, wherein the other fiber is selected from bamboo fiber, cotton fiber, silk fiber, hemp fiber, wool fiber, polyester fiber, acrylic fiber, polyethylene One or a combination of naphthenic fibers, rayon fibers, rubber fibers, nylon fibers, elastic fibers, and acetate fibers. The method for manufacturing a horn vibrating plate with a low halogen content according to claim 1, wherein all the first yarns are warp yarns or weft yarns, some of the second yarns are warp yarns, and some of the second yarns are weft yarns. The method for manufacturing a low halogen content horn vibrating plate according to claim 1, wherein part of the first yarn is warp yarn, part of the first yarn is weft yarn, part of the second yarn is warp yarn, and part of the second yarn is weft yarn . The method for manufacturing a low-halogen horn vibrating plate according to claim 1, wherein the other fibers as the second yarns are all the same or different in all or partly the same and partly different. A horn vibrating plate with low halogen content, which is manufactured by the method for manufacturing a horn vibrating plate with low halogen content as described in claim 1, comprising: A body, woven by a plurality of first yarns and a plurality of second yarns, each first yarn is a monofilament yarn body composed of a single aromatic polyamide fiber, and each second yarn is composed of a single other fiber The total number of the first yarns occupies less than 25% of the total number of yarns in the body, and the total number of the second yarns occupies the total number of yarns in the body 75% or more of; and A solid resin layer is arranged on the body. The horn vibrating plate with low halogen content according to claim 6, wherein the other fiber is selected from bamboo fiber, cotton fiber, silk fiber, hemp fiber, wool fiber, polyester fiber, acrylic fiber, polyethylene naphthene One or a combination of fibers, rayon fibers, rubber fibers, nylon fibers, elastic fibers, and acetate fibers. The horn vibrating plate with low halogen content according to claim 6, wherein all the first yarns are warp yarns or weft yarns, some of the second yarns are warp yarns, and some of the second yarns are weft yarns. The horn vibrating plate with low halogen content according to claim 6, wherein part of the first yarn is warp yarn, part of the first yarn is weft yarn, part of the second yarn is warp yarn, and part of the second yarn is weft yarn. The horn vibrating plate with low halogen content according to claim 6, wherein the types of the other fibers as the second yarns are all the same or different in all or partly the same and partly different.

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