CN101420651A

CN101420651A - Manufacturing method for loudspeaker drum paper

Info

Publication number: CN101420651A
Application number: CNA2007101633872A
Authority: CN
Inventors: 大原博
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-10-24
Filing date: 2007-10-24
Publication date: 2009-04-29
Anticipated expiration: 2027-10-24
Also published as: CN101420651B

Abstract

The invention discloses a manufacturing method of a horn paper cone. Devices required comprise such units as a fiber cloth body, a resin tank with liquid resin, a baking device, a forming die, a cutting device and the like. The method comprises the following steps: the fiber cloth body is soaked into the resin tank with the liquid resin, dried by the baking device, pressed and mold by the forming die, and finally cut by the cutting device, thus completing the manufacture of the horn paper cone, wherein, the liquid resin contains a solid substance, the content of the solid substance accounts for more than 50% of the liquid resin, and the solid substance can form a resin film at a slit of a fiber cloth body yarn when the forming die presses, thus isolating the air from penetrating the slit of the warp yarn and the weft yarn of the fiber cloth body, and solving the problem of high air leakage rate of the paper cone.

Description

The manufacture method of loudspeaker drum paper

Technical field

The invention relates to a kind of manufacture method of rousing paper, being meant a kind of especially is material with the liquid resinous fiber cloth body of impregnation high concentration, and the drum making method of handling through following process made of paper.

Background technology

One of drum paper sound generating mechanism when being sound horn, the vibration that is produced by voice coil loudspeaker voice coil during sound horn drive the vibration of drum paper, compress or loosen arround air, sound wave imports people's ear into sounds.Drum paper be air arround effectively promoting, and certain rigid and damping need be arranged, otherwise has resonance and cut apart the situation generation of vibration.Must guarantee simultaneously that drum paper can not leak gas, otherwise air arround can't effectively promoting causes loudspeaker damage or sounding effect not good.

Existing drum making method made of paper is the mould that utilizes a drum paper shape, be generally taper or hemisphere, the liquid paper pulp of modulating is poured in the mould, make residual paper pulp fiber on the mould, after repeating repeatedly to topple over, paper pulp fiber is residual more and more many and have certain thickness on the mould, and this moment is again with the mould pressurized, heated, and, finish the manufacturing process of bulging paper at last through suitably cutting.

In this manufacture method, after paper pulp liquid was poured in the mould, except that part paper pulp residued on the mould, all the other liquid paper pulp all passed the hole of mould and form the waste water discharge.And during the bulging paper of one of every making, all need topple over a large amount of liquid paper pulp for several times, and therefore can produce a large amount of waste water, these a little waste water still need be handled and just can discharge, and need the cost great amount of cost.In addition, existing bulging paper often has leak rate too high, causes the situation of sound horn poor effect to take place.

Summary of the invention

The object of the present invention is to provide a kind of manufacture method of loudspeaker drum paper, this method can effectively solve the high problem of bulging paper leak rate, and does not also have the waste water generation in the manufacturing process, can effectively save cost, promote the sound horn effect, solve existing problem of prior art or shortcoming.

The manufacture method of a kind of loudspeaker drum paper of the present invention comprises the following steps:

A., one fiber cloth body is provided;

B., one resin storage tank is provided, and groove contains a liquid resin, contains solids in this liquid resin, and the solids amount accounts for liquid resin more than 50%;

C. the fiber cloth body is contained in the liquid resin that is dipped in the resin storage tank;

D. the fiber cloth body after the impregnation is dried;

E. the fiber cloth body after will drying places a drum paper matrix tool, behind the drum paper matrix tool matched moulds, forms a shaping active position, and the gap of this shaping active position is less than or equal to the thickness behind the fiber cloth body impregnation liquid resin;

F. the fiber cloth body is pressurizeed in drum paper matrix tool and heat, fiber cloth body after the heating, the liquid resin on it becomes molten state behind hot melt, after pressurization, be filled in the gap of shaping active position, and liquid resin and the air-locked resin molding of formation between the slit of fiber cloth body; And

G. the fiber cloth type is cut.

Utilize above-mentioned manufacture method, beneficial effect of the present invention is, the manufacture method of loudspeaker drum paper of the present invention can form a resin molding between each filling yarn of drum paper fiber cloth body, blocks air is penetrated by the space between filling yarn, solve the high problem of leak rate, manufacture method of the present invention is simple simultaneously, does not have waste water handling problem, has numerous effects.

Description of drawings

Fig. 1 is the manufacturing flow chart of the manufacture method of loudspeaker drum paper of the present invention;

Fig. 2 contains the schematic diagram of resin distribution between each yarn behind the resin pickup for the described fiber cloth body of manufacture method of loudspeaker drum paper of the present invention;

Fig. 3 is the described mould structural map of manufacture method of loudspeaker drum paper of the present invention;

Fig. 4 for the described fiber cloth body of manufacture method of loudspeaker drum paper of the present invention at the schematic diagram of resin distribution between each yarn after the mould moulding.

Wherein, description of reference numerals is as follows:

10 cloth bodies

110 yarns

12 resin storage tanks

14 resins

141 resin molds

16 apparatus for baking

161 bake plate

18 moulds

181 molds

182 bed dies

183 shaping active positions

184 sound pelvic parts

185 brace portions

20 cutting means

Cut tool on 201

202 incision tools

22 drum paper

Embodiment

For making purpose of the present invention, structure, feature and function thereof there are further understanding, now cooperate embodiment to be described in detail as follows.

The manufacture method of loudspeaker drum paper 22 is made of the following step: contain resin pickup, oven dry, molded, cut etc.See also shown in Figure 1ly, it is for the manufacturing flow chart of loudspeaker drum paper of the present invention.Wherein, forming the required unit of each step includes: a fiber cloth body 10, a resin storage tank 12, an apparatus for baking 16, a molding tool 18 and a cutting means 20 etc.

In the manufacturing of loudspeaker drum paper 22, one fiber cloth body 10 need be provided earlier, it is the general cloth material without special processing, constitute by the orthogonal filling yarn 110 of most bars (seeing also shown in Figure 2) is staggered, and each filling yarn 110 is made of several fibers.

The impregnation resin stage provides a resin storage tank 12, in liquid resin 14 is housed, resin 14 can all can for phenolic resins, epoxy resin, alkyd resin etc.Wherein liquid resin 14 contains the solids of alcohol, moisture content etc., and content accounts for more than 50% of liquid resin 14 amounts.And fiber cloth body 10 contains earlier in the liquid resin 14 that is dipped in this resin storage tank 12, filling yarns 110 (seeing also shown in Figure 2) in the fiber cloth body 10 are adsorbed and sticks together resin 14.

Baking stage provides an apparatus for baking 16, and it is made up of upper and lower two bake plate 161,161 spaces that have greater than fiber cloth body 10 thickness of two bake plate, and it has certain temperature.Fiber cloth body 10 by resin storage tank 12 taking-ups, when inserting in the apparatus for baking 16, fiber cloth body 10 is positioned over 161 of upper and lower two bake plate, utilize the temperature of bake plate 161, the moisture content and the volatile materials of fiber cloth body 10 are removed, drying fibrous cloth body 10 makes simultaneously in the resin 14 infiltrated fiber cloth bodies 10, and attaches on the filling yarn 110 of fiber cloth body 10.Because of the 14 solids content of the liquid resin in the resin storage tank 12 reach more than 50%, fiber cloth body 10 its filling yarns 110 that taken out by resin storage tank 12 attach considerable resin 14, and form round and round a structure, see also shown in Figure 2.

Please be back to shown in Figure 1ly again, in the molded stage, provide a molding tool 18, it is made up of a mold 181 and a bed die 182, see also shown in Figure 3, in upper and lower mould 181,182 pressings place, can be divided into sound pelvic part 184 and brace portion 185 again, make mould 18 form the shape of drum paper 22.Herein, behind mould 18 matched moulds, 181,182 on upper and lower mould, form a shaping active position 183, the gap length of this shaping active position 183 is less than or equal to the thickness behind the fiber cloth body 10 impregnation liquid resins 14, and the scope of this shaping active position 183, only be confined to the sound pelvic part 184 of upper and lower mould 181,182, be not contained in brace portion 185.Doing this restriction is that the resin 14 in unnecessary shaping active position 183 gaps can be extruded into brace portion 185 when containing the fiber cloth body 10 of resin 14 because of pressing.

After fiber cloth body 10 has toasted, it is inserted in the upper and lower mould 181,182, utilize mold 181 pressing bed dies 182, make fiber cloth body 10 be pressed on 181,182 on upper and lower mould; On, bed die 181,182 also have heater, when last, bed die 181,182 matched moulds and the time to fiber cloth body 10 pressurization, heater is also switched on and is made, bed die 181,182 temperature raise, temperature is based between 190 ℃～270 ℃, thereby make the fiber cloth body 10 that contains resin 14 make resin 14 softening because of heating, become molten state, except that breaking resin 14, also make the resin 14 that is present in 110 of each filling yarns be filled in the gap of shaping active position 183, form an air-locked resin molding 141 (seeing also shown in Figure 4) and be connected, this resin molding 141 can be covered in 110 of each filling yarns, and so 10 of fiber cloth bodies are complete gastight cloth body 10 structures.

Cut the stage, a cutting means 20 is provided, it is by cutting tool 201 on one and an incision tool 202 is formed, and major function is the redundance of excision fiber cloth body 10, or the fiber cloth body 10 of moulding and fibrillation cloth body 10 are broken away from.When the fiber cloth body 10 of moulding was come out by mould 18, it was connected with fibrillation cloth body 10, so cut tool 201 and incision tool 202 its junction of excision and unnecessary places on utilizing, so, promptly finished the bulging paper 22 of loudspeaker.

In addition, in the present invention, the fiber of fiber cloth body can be bamboo fiber, aromatic polyamide fibre (Aramid), polyester fiber, cotton fiber, acryl fiber, silk fiber or polyethylene cycloalkanes fiber (Polyethylene Naphthalate) and waits one of them fiber or the fiber more than two kinds to constitute.In addition, above-mentioned each fiber also can be made of low melting point fiber.

The manufacture method of existing loudspeaker drum paper, the problem that waste water treatment is not only arranged, rouse paper simultaneously the high problem of leak rate is also arranged, the present invention can form a resin molding between each filling yarn of fiber cloth body of drum paper, so the bulging paper of structure can guarantee that air is difficult for being penetrated by the space through between weft yarn, thereby can solve the high problem of loudspeaker leak rate of prior art, and drum of the present invention making method made of paper is simple simultaneously, and do not have waste water handling problem, have numerous effects.

Though the present invention discloses as above with aforesaid embodiment, yet it is not in order to limit the present invention.In not breaking away from creation spirit of the present invention and protection range, change of being done and retouching all belong within the scope of patent protection of the present invention.

Claims

1. the manufacture method of a loudspeaker drum paper is characterized in that, comprises the following steps:

A., one fiber cloth body is provided;

B., one resin storage tank is provided, and groove contains a liquid resin, contains solids in this liquid resin, and this solids amount accounts for this liquid resin more than 50%;

C. this fiber cloth body is contained in this liquid resin that is dipped in this resin storage tank;

D. with this fiber cloth body oven dry after the impregnation;

E. this fiber cloth body after will drying places a drum paper matrix tool, behind this drum paper matrix tool matched moulds, forms a shaping active position, and the gap of this shaping active position is less than or equal to the thickness behind this this liquid resin of fiber cloth body impregnation;

F. the fiber cloth body is pressurizeed in drum paper matrix tool and heat, this fiber cloth body after the heating, this liquid resin on it becomes molten state behind hot melt, after pressurization, be filled in the gap of this shaping active position, and this liquid resin and the air-locked resin molding of formation between the slit of this fiber cloth body; And

G. this fiber cloth type is cut.

2. the manufacture method of loudspeaker drum paper as claimed in claim 1 is characterized in that, described liquid resin is any in phenolic resins, epoxy resin or the alkyd resin.

3. the manufacture method of loudspeaker drum paper as claimed in claim 1 is characterized in that, the heating-up temperature of described f step is positioned between 190 ℃ to 270 ℃ scopes.

4. the manufacture method of loudspeaker drum paper as claimed in claim 1, it is characterized in that, described fiber cloth body is to constitute yarn by several fibers, this yarn of weaving forms again, and wherein respectively this fiber is constituted by bamboo fiber, aromatic polyamide fibre, polyester fiber, cotton fiber, acryl fiber, silk fiber or one of them fiber of polyethylene cycloalkanes fiber or two or more fibers.

5. the manufacture method of loudspeaker drum paper as claimed in claim 4, it is characterized in that described bamboo fiber, described aromatic polyamide fibre, described polyester fiber, described cotton fiber, described acryl fiber, described silk fiber or described polyethylene cycloalkanes fiber etc. are low melting point fiber.