TW201408086A - Speaker damper and manufacturing method thereof - Google Patents

Abstract

The present invention discloses a speaker damper and a manufacturing method thereof. The speaker damper comprises: a fiber fabric body formed by weaving a plurality of threads. The plurality of threads are individually single thread body composed of single fiber or formed with a plurality of fibers in multiple strands of yarn. The fiber comprises at least a first fiber. The first fiber is the one selected from cotton, polyester and aromatic polyamide fiber, or a combination thereof. When the first fiber is combination of cotton, polyester and aromatic polyamide fiber, any one of the materials may occupy 0~100% of the overall weight of the fiber fabric body, and the other two may increase or decrease their weight percentages correspondingly. When the first fiber does not reach 100% of the overall weight of the fiber fabric body, the fiber fabric body further comprises a second fiber, and the second fiber is the one selected from rayon, silk, linen, acrylic, rubber and synthetic fiber, or a combination thereof. The speaker damper further comprises a resin solidifying layer, which is attached to and combined with the fiber fabric body for maintaining the fiber fabric body in a predetermined form by a molding means.

Description

Horn bomb wave and preparation method thereof

The present invention relates to a vibrating piece structure for a speaker, and more particularly to a trumpet elastic wave and a method of manufacturing the same.

Damper is one of the most important components in a speaker or speaker structure. The elastic wave and toughness characteristics are better. In addition to providing better output power and audio characteristics of the speaker or speaker, it is also a speaker or speaker manufacturer. When manufacturing speakers or speakers, the basis of quality control increases the service life of speakers or speakers.

The traditionally used molding elastic wave is made of cotton cloth as the basic material, and the cotton cloth is dipped in the liquid synthetic resin, so that the fiber of the cotton cloth absorbs the synthetic resin, and the cotton cloth absorbing the synthetic resin woven the longitudinal and transverse fibers of the cotton cloth after drying and hardening. The wires are fixedly bonded to each other at a certain position, and the synthetic resin is covered with the surface of the cotton cloth to form a synthetic resin film which is insulated from both sides of the cotton cloth. The cotton cloth with the synthetic resin film is heated, pressed and cut to form a surface by the elastic wave manufacturing mold. Forming elastic waves of annular corrugations.

Because the traditional molding elastic wave is made of cotton as the basic material, although the cotton fiber has excellent absorption and bonding properties into resin, the disadvantages are as follows: (1) The elastic wave produced by the cotton cloth has poor lateral resistance and is prone to fatigue. The rupture phenomenon causes the sound of the elastic wave to be damaged, and its service life is not long; (2) the elastic wave or the vibration cone of the cotton drum (Cone Edge) lacks elastic stretching force, and the resonance softness with the sound wave is not good. The sound quality is also poor; (3) The elastic wave produced by cotton has poor toughness, and the sound wave pressure subjected to high power output is also poor, and it is impossible to produce high-output molded elastic waves.

Therefore, in order to improve the anti-lateral force, elastic stretching force and toughness of the elastic wave of cotton fabric The strength and the modified molding elastic wave are added to the longitudinal and transverse thin steel wires in the woven cotton cloth to strengthen the lateral force, the elastic stretching force and the toughness strength, and the longitudinal and transverse thin steel wires are added to the cotton woven fabric, although The shortcomings of the general cotton forming elastic wave are improved as a whole, but other disadvantages are generated: (1) The fine steel wire in the cotton weaving greatly damages the elastic wave forming and cutting mold, and the elastic wave forming cutting mold In order to cut off the edge of the mold wave, after repeated cutting of the small steel wire, numerous fine depressions are generated. After a certain period of time, the cutting mold cannot cut the molding elastic wave, and the cutting mold must be replaced, except for interrupting production. It will cause waste of time efficiency, increase the cost of molds, and increase the manufacturing cost. (2) The elastic force and toughness of fine steel wire are much higher than that of cotton fiber, causing uneven local force and forming interference phenomenon of sound wave resonance. (3) After the cutting, the thin elastic wire on the inner ring side or the outer ring side must be cut or bent to avoid short circuit of current contact with other metals and damage the whole Speaker or speakers.

Based on the above, the inventors have thought about and improved the shortcomings of the conventional molded elastic waves, and invented a "horn flare wave and its preparation method" to improve the lateral force and elastic expansion force of the molded elastic wave. Resilience strength, increasing service life, improving the resonance flexibility and sound quality of sound waves, can withstand the sound pressure of high power output.

An object of the present invention is to provide a horn elastic wave, comprising: a fiber cloth body, which is woven by a plurality of wire bodies, wherein the plurality of wire bodies are individually a single fiber composed of a single fiber or a plurality of fibers. Formed by a twisted yarn method, the fiber comprises at least a first fiber selected from the group consisting of cotton, polyester fiber and aromatic polyamide fiber One of or a combination thereof, wherein when the first fiber is simultaneously used with cotton, polyester fiber and aromatic polyamide fiber, any of the materials may individually account for 0 to 100% of the total weight of the fiber cloth, and The other two correspondingly increase or decrease the weight ratio thereof. When the first fiber accounts for less than 100% of the total weight of the fiber cloth body, the fiber cloth body further includes a second fiber, and the second fiber is selected from the group consisting of , one or a combination of ruthenium, hemp, acryl, rubber, rayon; and a resin solid layer adhered to the fiber cloth body, and the fiber cloth body is maintained at a predetermined structure by a molding means type.

Preferably, the molding temperature of the cotton is 245 ° C plus or minus 20 ° C, the molding temperature of the polyester fiber is 200 ° C plus or minus 20 ° C, and the molding temperature of the aromatic polyamide fiber is 235 ° C plus or minus 10 ° C.

Preferably, the resin solid layer is selected from one of phenolic resin, epoxy resin, polyester resin or a combination thereof. Another object of the present invention is to provide a method for preparing a horn elastic wave, comprising the steps of: (i) providing a plurality of line bodies; wherein the plurality of line bodies are individually a single fiber composed of a single fiber or a plurality of wires The fiber is formed by a multi-strand twisting method, the fiber comprising at least a first fiber selected from the group consisting of cotton, polyester fiber and aromatic polyamide fiber, or a combination thereof, when the first fiber When cotton, polyester fiber and aromatic polyamide fiber are used at the same time, any one of the materials may individually occupy 0 to 100% of the total weight of the fiber cloth body, and the other two correspondingly increase or decrease the weight ratio thereof. When the first fiber accounts for less than 100% of the total weight of the fiber cloth body, the fiber cloth body further includes a second fiber selected from the group consisting of enamel, enamel, hemp, acrylic, rubber, and polyethylene ring. One or a combination of alkane fibers and bamboo fibers; (ii) woven the plurality of strands into a fiber cloth body in a predetermined weight ratio; (iii) impregnating the fiber cloth body with a resin to adhere the resin to the fiber cloth body; (iv) the fiber The cloth body is baked to form a resin solid layer on the fiber cloth body; (v) the fiber cloth body is subjected to hot press forming.

Preferably, wherein the fiber cloth body is further cut into an appropriate size after hot press forming.

Preferably, the molding temperature of the cotton is 245 ° C plus or minus 30 ° C, the molding temperature of the polyester fiber is 200 ° C plus or minus 30 ° C, and the molding temperature of the aromatic polyamide fiber is 240 ° C plus or minus 35 ° C.

Through the technical means adopted by the invention, the lateral force, the elastic stretching force and the toughness strength of the molding elastic wave can be uniformly and effectively improved, the life of the elastic wave is increased, the resonance flexibility and the sound quality of the sound wave are improved, and the sound can be withstood. The sonic pressure of the power output. According to various materials with appropriate elastic stretch and toughness characteristics, it can be used to produce molded elastic waves with different output power and different audio characteristics, and used for speakers or speakers with different sound quality, in the case of improved toughness, The formed elastic wave can effectively increase the output power of the speaker or the speaker, and the audio characteristics are better. At the same time, in the process of manufacturing the molding elastic wave, no fine steel wire (metal wire) damages the mold, saves manufacturing time, improves manufacturing efficiency, and effectively reduces production cost.

Horn bomb

Referring to the first to third figures, which respectively show a perspective view of the horn of the horn of the present invention, A cross-sectional view and a partial enlarged view. The horn elastic wave 3 of the present invention mainly comprises a fiber cloth body 31 and a resin solid layer 32. The fiber cloth body 31 is woven by a plurality of wires 33 which are individually formed of a single fiber single body or a plurality of fibers 331 formed by a multi-strand twisting method (shown in the figure). a plurality of crepe yarns 316 comprising at least one first fiber selected from the group consisting of cotton, polyester fibers, and aromatic polyamide fibers, or a combination thereof, wherein the first fibers are used simultaneously In the case of cotton, polyester fiber and aromatic polyamide fiber, any of the materials may individually account for 0 to 100% of the total weight of the fiber cloth body, and the other two correspondingly increase or decrease the weight ratio thereof, when the first When the fiber accounts for less than 100% of the total weight of the fiber cloth body, the fiber cloth body further includes a second fiber selected from the group consisting of enamel, enamel, hemp, acrylic, rubber, and man-made fibers. Or a combination thereof. The resin solid layer 32 is adhered to the fiber cloth body 31, and the fiber cloth body 31 is maintained in a predetermined configuration by a molding means. The molding temperature of the cotton is 245 ° C plus or minus 30 ° C, the molding temperature of the polyester fiber is 200 ° C plus or minus 30 ° C, and the molding temperature of the aromatic polyamide fiber is 240 ° C plus or minus 35 ° C. The resin solid layer 32 is selected from one or a combination of a phenol resin, an epoxy resin, and a polyester resin.

Method for preparing horn elastic wave

Referring to the fourth figure, there is shown a flow chart of a method for preparing a horn bomb of the present invention. As shown in the figure, the units required to constitute each step include: a fiber cloth body 10, a resin tank 12, a baking device 16, a molding die 18, a cutting device 20, and the like.

In the manufacture of the horn bouncer 22, a fiber cloth body 10 is first provided, which is formed by using a plurality of crepe yarns to form a plurality of wire bodies (warp and weft yarns), or a single wire body composed of a single fiber. And woven the plurality of lines into a fiber at a predetermined weight ratio Weib body. Wherein the fiber comprises at least a first fiber selected from the group consisting of cotton, polyester fiber and aromatic polyamide fiber, or a combination thereof, when the first fiber is simultaneously used with cotton, polyester fiber and aromatic When the polyamide fiber is used, any one of the materials may individually occupy 0 to 100% of the total weight of the fiber cloth body, and the other two correspondingly increase or decrease the weight ratio thereof, when the first fiber accounts for the whole fiber cloth body. When the weight is less than 100%, the fiber cloth body further comprises a second fiber selected from the group consisting of ruthenium, osmium, hemp, acrylic, rubber, polyethylene naphthenic fiber, bamboo fiber or Its combination.

In the stage of impregnating the resin, a resin tank 12 is provided, in which the liquid resin 14 is contained, and the resin 14 may be a phenol resin, an epoxy resin, a polyester resin, or the like. The liquid resin 14 contains a solid matter such as alcohol or water, and the content thereof accounts for 50% or more of the amount of the liquid resin 14. The fiber cloth body 10 is first impregnated into the liquid resin 14 in the resin tank 12, and the wire body (warp and weft yarn) in the fiber cloth body 10 is adsorbed and adhered to the resin 14.

In the drying stage, a baking device 16 is provided, which is composed of upper and lower baking plates 161. The two baking plates 161 have a space slightly larger than the thickness of the fiber cloth body 10, and have a certain temperature. When the fiber cloth body 10 taken out from the resin tank 12 is placed in the baking device 16, the fiber cloth body 10 is placed between the upper and lower baking plates 161 and 162, and the temperature of the baking plate 161 is used to make the fiber cloth. The moisture and volatile matter of the body 10 are removed, and the fiber cloth body 10 is dried, and at the same time, the resin 14 is infiltrated into the fiber cloth body 10 and adhered to the warp and weft yarns of the fiber cloth body 10. Since the solid content of the liquid resin 14 in the resin tank 12 is 50% or more, the fiber cloth body 10 taken out from the resin tank 12 has a warp and weft yarn which adheres a considerable amount of the resin 14 to form a cluster structure.

In the molding stage, at the pressing portions of the upper and lower molds 181 and 182, respectively, the top surface and the bottom surface of the horn elastic wave 22 can be divided, and the molding die 18 is formed into a shape of a horn elastic wave 22 The shape is usually wavy, and the number of waveforms can be adjusted according to the situation, usually ranging from 3-5 waves, and not completely symmetric in the vicinity of the inner and outer diameter positions. After the molding die 18 is clamped, a forming effective position is formed between the upper and lower dies 181 and 182, and the gap size of the forming effective position 183 is less than or equal to the thickness of the fiber cloth body 10 after impregnation of the liquid resin 14. After the fiber cloth body 10 is baked, it is placed in the upper and lower molds 181, 182, and the lower mold 182 is pressed by the upper mold 181, so that the fiber cloth body 10 is pressed between the upper and lower molds 181, 182. There is also a heating device between the upper and lower molds 181 and 182. When the upper and lower molds 181 and 182 are clamped and the fiber cloth body 10 is pressurized, the heating device is also energized to raise the temperature of the upper and lower molds 181 and 182. The temperature is between 190 and 270 ° C, so that the fiber cloth body 10 containing the resin 14 is softened by heating, and the resin 14 existing between the warp and weft yarns is filled up in addition to breaking the resin 14. In the gap between the effective positions of the forming, they are joined to form a resin solid layer and covered between the warp and weft yarns.

In the cutting stage, a cutting device 20 is provided, which is composed of an upper cutter 201 and a lower cutter 202. The main function is to cut off the excess portion of the fiber cloth body 10, or to form the fiber cloth body 10 and the fibril cloth body. 10 detached. When the formed fiber cloth body 10 is out of the molding die 18, it is connected to the fibril cloth body 10, so the upper cutting tool 201 and the lower cutting tool 202 are used to cut off the joint and the excess, so that the horn is completed. The horn bounces 22.

Horn bomb wave composition

The horn bomb wave of the present invention is a bomber for a horn (speaker). The main fiber composed of the horn elastic wave of the present invention (that is, the first fiber mentioned above) comprises: cotton, polyester fiber and aromatic ammine (Aramid) fiber. Dimensions, preferably all of the total unit fabric weight, or 99.9 to 95.0% of the total unit fabric weight (in this case with other secondary fibers).

The cotton fiber has excellent absorption between the fibers, can effectively absorb the synthetic resin, and is closely bonded with the synthetic resin, and has strong water absorption and high water absorption; but the elastic restoring force, fatigue resistance, and heat resistance are poor. The molding temperature is about 200 ° C plus or minus 20 ° C.

The polyester fiber (Polyester) has medium performance of absorbing synthetic resin between fibers, and has a medium bonding strength with a synthetic resin, and has low water absorption; but excellent elastic recovery force, high fatigue resistance, and poor heat resistance. The molding temperature is about 200 ° C plus or minus 20 ° C.

The aromatic polyamidamine (Aramid) fiber has poor performance in absorbing synthetic resin between fibers, and is closely bonded to the synthetic resin and has poor adhesion; but it has high water absorption, excellent elastic recovery, fatigue resistance, and heat resistance. Sex, its molding temperature is about 235 ° C plus or minus 10 ° C.

In addition to the main fibers, other minor fibers (ie, the aforementioned second fibers) may be included/excluded, selected from one or a combination of enamel, enamel, hemp, acrylic, rubber, and rayon. When the secondary fibers are contained, the preferred composition ratio is in the range of 0.1 to 5.0% by weight of the total unit of the fabric.

In a specific implementation state, when only one of the cotton, the polyester fiber, the aromatic polyamide fiber or a combination thereof is used, the preferred weight ratio of each of the total weight components may be:

(1) Cotton (Cotton) accounts for 80-20%, Polyester (Polyester) accounts for 20-80%, and aromatic polyamine (Aramid) fibers account for 0%.

(2) Cotton (Cotton) accounts for 20-80%, Polyester (Polyester) accounts for 0%, aromatic poly Aramid fiber accounts for 80-20%.

(3) Cotton (Cotton) accounts for 0%, Polyester (Polyester) accounts for 100%, and aromatic polyamine (Aramid) fibers account for 0%.

(4) Cotton (Cotton) accounts for 0%, Polyester (Polyester) accounts for 0%, and aromatic polyamine (Aramid) fibers account for 100%.

(5) Cotton accounts for 37.5%, Polyester accounts for 37.5%, and aromatic polyamide (Aramid) fibers account for 25%.

(6) Cotton accounts for 42.5%, Polyester (32.5%), and Aramid fibers (25%).

(7) Cotton (Cotton) accounts for 50%, Polyester (Polyester) accounts for 25%, and aromatic polyamidamine (Aramid) fibers account for 25%.

(8) Cotton (Cotton) accounts for 0%, Polyester (Polyester) accounts for 50%, and aromatic polyamine (Aramid) fibers account for 50%.

(9) Cotton (Cotton) accounted for 12.5%, Polyester (Polyester) accounted for 37.5%, and aromatic polyamine (Aramid) fiber accounted for 50%.

(10) Cotton accounts for 17.5%, Polyester accounts for 32.5%, and aromatic polyamide (Aramid) fibers account for 50%.

The above is an example of several composition ratios which have been experimentally tested in the present invention. In fact, three different constituent materials such as Cotton, Polyester, and Aramid fiber in the present invention, The weight ratio of the respective constituent materials is not limited, that is, the weight of any one of the materials may be 0 to 100%, and the other two correspondingly increase or decrease the weight ratio thereof, and the total of the three is 100%, according to the composition. The characteristics of the horn flares produced vary with the weight ratio.

Furthermore, in the case of other secondary fibers, an additional acrylic (Acrylic) may be added. And blended with Silk, and the weight ratio of "Acrylic" to "Cotton", Polyester, and Aramid fiber can be 0.1%. ~50%: 99.9%~50%, and the ratio of silk to "Cotton", Polyester, and Aramid fiber can be 0.1%~25%: 99.9%~75%.

Acrylic can also be mixed with Polyester in advance in various proportions, and then mixed with cotton and aromatic Aramid fibers in the above-mentioned weight ratio. , "Cotton": Polyester + Acrylic: Aramid fiber.

The different materials of the above materials have various molding temperatures, the molding temperature of cotton is about 245 ° C plus or minus 10 ° C, the molding temperature of polyester fiber is about 200 ° C plus or minus 20 ° C, aromatic polyfluorene The molding temperature of the amine (Aramid) fiber is about 235 ° C plus or minus 10 ° C, and the molding temperature of the fiber cloth body is between 175 and 250 ° C.

According to the implementation of the present invention, according to the output power and audio characteristics of the elastic wave of the specific speaker (speaker), the fiber materials can be selected according to the respective characteristics of the various compositions described above according to an appropriate ratio, and an appropriate method can be selected and weaved. A fiber cloth body having appropriate elastic stretchability and toughness characteristics is produced.

Refer to the fifth figure, which shows the results of the endurance test of the horn bounce made of different fibers, each of which stands for different materials: aromatic polyamine (N), polyester (P), cotton (C) , Acrylic (A). The composition of various elastic waves in the figure are: C (100%), PC (P: C = 50: 50), NC (N: C = 50: 50), APC (A: P: C = 25: 25: 50), NPC (A: P: C = 25: 25: 50), N (100%) and other six kinds of elastic waves, in the actuation endurance test, by the time (hours) and fatigue change rate (%) It can be known that in the unit time, C>PC>NC>APC>NPC>N, it can be known that if it is mainly N, NPC and APC The produced horn bounce has a small rate of change and the best fatigue resistance, that is, the elastic retraction force is optimal. If the elastic wave made entirely of cotton is actually used for a horn or a speaker, it is prone to fatigue and rupture, and cracking noise will be generated. If a fiber such as A, P or N is mixed, this problem is less likely to occur.

The horn elastic wave of the invention has different elastic expansion and toughness characteristics, and can be used to manufacture molding elastic waves with different output powers and different audio characteristics, so that the sound quality of the speaker or the speaker is better, and the horn of the horn is elasticized. The increase in the life of the speaker or speaker increases, and provides a more appropriate and more versatile choice of fabric for the blaster, enabling the horn or speaker manufacturer to produce a speaker or speaker with better output power and audio characteristics.

The horn elastic wave and the preparation method thereof provided by the present invention have industrial utilization value, but the above description is only for the description of the preferred embodiment of the present invention, and those skilled in the art can make other according to the above description. Various modifications, but such changes are still within the spirit of the invention and the scope of the patents defined below.

10‧‧‧Fiber cloth

12‧‧‧ resin tank

16‧‧‧ baking device

161, 162‧‧ baking boards

18‧‧‧Molding mould

181‧‧‧Upper mold

182‧‧‧ Lower mold

20‧‧‧ cutting device

201‧‧‧Upper cutting

202‧‧‧Under the cutting tool

3‧‧‧ horn flare

31‧‧‧Fiber cloth body

32‧‧‧Resin solid layer

33‧‧‧Line body

331‧‧‧ fiber

The first figure is a perspective view of the horn of the horn of the present invention; the second figure is a sectional view of the horn of the horn of the present invention; the third figure is a partial enlarged view of the horn of the horn of the present invention; The flow chart; the fifth picture shows the results of the endurance test of the horn wave of different compositions.

3‧‧‧ horn flare

31‧‧‧Fiber cloth body

32‧‧‧Resin solid layer

Claims (10)

A horn elastic wave, comprising: a fiber cloth body, which is woven by a plurality of wire bodies, wherein the plurality of wire bodies are individually formed into a single wire body composed of a single fiber or a plurality of crepe yarns formed by a plurality of fibers. The fiber comprises at least a first fiber selected from the group consisting of cotton, polyester fiber and aramid fiber or a combination thereof, wherein the first fiber is simultaneously used with cotton, polyester fiber and aromatic When the polyamide fiber is used, any one of the materials may individually occupy 0 to 100% of the total weight of the fiber cloth body, and the other two correspondingly increase or decrease the weight ratio thereof, when the first fiber accounts for the whole fiber cloth body. When the weight is less than 100%, the fiber cloth body further includes a second fiber selected from one or a combination of enamel, enamel, hemp, acrylic, rubber, rayon; and a resin The solid layer is adhered to the fiber cloth body and maintained by the molding means to maintain the fiber cloth body in a predetermined configuration. The horn wave according to claim 1, wherein the cotton is formed at a temperature of 245 ° C plus or minus 30 ° C. The horn wave according to claim 1, wherein the polyester fiber has a molding temperature of 200 ° C plus or minus 30 ° C. The horn elastic wave according to claim 1, wherein the aromatic polyamide fiber has a molding temperature of 240 ° C plus or minus 35 ° C. The horn elastic wave according to claim 1, wherein the resin solid layer is selected from one of a phenol resin, an epoxy resin, a polyester resin, or a combination thereof. A method for preparing a horn elastic wave, comprising the steps of: (i) providing a plurality of linear bodies; wherein the plurality of linear bodies are individually composed of single fibers The single wire body or the plurality of fibers is formed by a plurality of twisting yarns, the fiber comprising at least one first fiber selected from the group consisting of cotton, polyester fiber and aromatic polyamide fiber or a combination thereof When the first fiber is simultaneously used with cotton, polyester fiber and aromatic polyamide fiber, any one of the materials may individually occupy 0 to 100% of the total weight of the fiber cloth body, and the other two correspondingly increase or decrease When the first fiber accounts for less than 100% of the total weight of the fiber cloth body, the fiber cloth body further includes a second fiber selected from the group consisting of enamel, enamel, hemp, and acrylic. And one or a combination of rubber, polyethylene naphthenic fiber, and bamboo fiber; (ii) woven the plurality of wire bodies into a fiber cloth body in a predetermined weight ratio; (iii) impregnating the fiber cloth body in a resin Adhesively adhering the resin to the fiber cloth body; (iv) baking the fiber cloth body to form a resin solid layer on the fiber cloth body; (v) hot pressing the fiber cloth body . The method for preparing a horn elastic wave according to claim 6, wherein the fiber cloth body is further cut into an appropriate size after the hot press forming. The method for preparing a horn elastic wave according to claim 6, wherein the cotton is formed at a temperature of 245 ° C plus or minus 30 ° C. The method for preparing a horn elastic wave according to claim 6, wherein the polyester fiber has a molding temperature of 200 ° C plus or minus 30 ° C. The method for preparing a horn elastic wave according to claim 6, wherein the aromatic polyamide fiber has a molding temperature of 240 ° C plus or minus 35 ° C.