CN107682804B - Method for manufacturing loudspeaker vibrating piece by using positioning structure - Google Patents
Method for manufacturing loudspeaker vibrating piece by using positioning structure Download PDFInfo
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- CN107682804B CN107682804B CN201610623833.2A CN201610623833A CN107682804B CN 107682804 B CN107682804 B CN 107682804B CN 201610623833 A CN201610623833 A CN 201610623833A CN 107682804 B CN107682804 B CN 107682804B
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- positioning
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- pressing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
- H04R31/003—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor for diaphragms or their outer suspension
Abstract
A method for manufacturing a loudspeaker vibrating plate applying a positioning structure comprises a providing step, an impregnation step, a drying step, a hot-press forming step and a cutting step; the method comprises the steps of providing a substrate, wherein the surface of one side of the substrate is provided with a plurality of preformed vibration plate forming areas, in the hot-press forming step, a hot-press mold is used for forming at least one positioning part on the substrate in a hot-press mode, then the cutting step is carried out through the arrangement of the positioning part, the positioning part is accurately corresponded, and the preformed vibration plate is cut, so that a plurality of vibration plates are obtained. Therefore, the invention is mainly arranged by the positioning part to accurately cut a plurality of vibrating pieces, thereby effectively saving the material cost and shortening the working hours, and having more accurate cutting effect than the prior art.
Description
Technical Field
The present invention relates to a method for manufacturing a vibrating plate of a speaker, and more particularly, to a method for manufacturing a vibrating plate of a speaker using a positioning structure.
Background
Accordingly, many non-metal component substrates contained in a general speaker are made of cloth, and the main reason is that the specially processed cloth has appropriate elasticity and strength to provide the required functions of the speaker, such as vibration sheets of drum paper, elastic waves, and connecting sheets.
However, the diaphragm of the horn is manufactured by using cotton cloth as a base material, and then dipping the cotton cloth in a liquid synthetic resin to absorb the synthetic resin in the fibers of the cotton cloth, and the synthetic resin absorbed cotton cloth is dried and hardened to fix and bond the longitudinal and transverse fiber lines of the woven cotton cloth to each other at a certain position while the synthetic resin is spread over the surface of the cotton cloth to form a synthetic resin film isolating both sides of the cotton cloth, and the cotton cloth having the synthetic resin film. Then, in the forming vibrating piece, the cotton cloth is spread and flattened, and then a plurality of forming blocks are formed on the cotton cloth, wherein the forming blocks are spaced at equal intervals. Then, the cotton cloth is heated and pressurized by a mold, so that a plurality of vibrating sheet shapes are formed in the forming block in a shrinkage mode sequentially. Finally, a cutting step is carried out, and each vibrating piece shape is cut from the cotton cloth by using a cutting device in sequence to obtain a plurality of vibrating pieces.
In addition, the above-mentioned method for manufacturing the conventional speaker vibrating reed is mainly performed automatically and continuously, and since the cotton cloth has elasticity, when each vibrating reed is shrunk from a flat shape, the position of each subsequent forming block is pulled forward a distance under the influence of the shrinking force of the previous wave forming block which is shrunk into a wave shape. In this way, firstly, the forming mold cannot be accurately aligned with each subsequent forming block, so that the wave forming is incomplete; secondly, the cutting tool cannot be accurately aligned with each formed block after forming, and the whole vibrating piece after cutting is incomplete.
Therefore, the present inventors have found that the above-mentioned drawbacks require further improvement of the conventional methods for manufacturing a vibrating piece, and have made the present invention.
Disclosure of Invention
The present invention provides a method for manufacturing a loudspeaker vibrating reed using a positioning structure, which can accurately cut a plurality of vibrating reeds on a substrate by providing a positioning portion on the substrate, and further achieve the purposes of effectively saving material cost and shortening working hours, and achieving a more precise cutting effect than the prior art, so as to achieve the effect of providing a loudspeaker vibrating reed with better quality.
To achieve the above object, the present invention provides a method for manufacturing a speaker vibrating reed with a positioning structure, comprising: a providing step of providing a substrate having a plurality of preformed vibration plate forming regions on one side surface thereof; an impregnation step of impregnating the base material in a resin; a drying step, drying the base material impregnated with the resin; a step of hot press forming, in which a hot press mold heats and pressurizes the substrate in a hot press manner, so that the substrate is simultaneously formed with the vibrating piece forming region and at least one positioning part, wherein the vibrating piece forming region comprises a plurality of vibrating pieces; and a cutting step, wherein a cutting device is arranged through the positioning part, so that the positioning part is accurately corresponding to the cutting device, then the vibrating piece forming area is cut, a plurality of vibrating pieces are obtained, and the positioning part is reserved on the base material.
Preferably, the hot pressing mold includes a first mold and a second mold, one side of the first mold has a first pressing surface, the first pressing surface has at least one positioning groove, one side of the second mold has a second pressing surface, and the second pressing surface has a positioning post corresponding to the positioning groove.
Preferably, the first pressing surface and the second pressing surface have a plurality of heat pressing portions respectively, the heat pressing portions of the first pressing surface are adjacent to the positioning slots respectively, and the heat pressing portions of the second pressing surface are adjacent to the positioning posts respectively.
Preferably, the first pressing surface is concavely provided with a plurality of positioning grooves, one side of the second mold is provided with a second pressing surface, the second pressing surface is respectively convexly provided with a positioning column corresponding to the positioning grooves, and in the step of hot press forming, when the positioning grooves are pressed with the positioning columns, a plurality of positioning parts are formed on the substrate, and the positioning parts are evenly distributed on the substrate.
Preferably, the substrate defines a center point for pre-positioning, the periphery of the center point is surrounded by the diaphragm forming region, and the diaphragm forming region is spaced from the center point by a distance.
Preferably, the positioning portion is a convex portion protruding from one side of the base material, and the other side of the base material is recessed with a limiting groove corresponding to the convex portion.
Preferably, the protrusion is cylindrical.
Preferably, the cutting device has at least one cutting element and at least one fixing element, the fixing element is used for correspondingly fixing the positioning portion, and the cutting element is used for correspondingly cutting the vibrating plate forming area.
The invention provides a method for manufacturing a loudspeaker vibrating plate applying a positioning structure, which is mainly characterized in that at least one positioning part is formed on a base material through the hot-press forming step. Therefore, the invention has the advantages that a plurality of vibrating reeds are accurately cut on the substrate, the material cost is effectively saved, and the working hour is shortened; meanwhile, the loudspeaker vibrating plate has more accurate cutting effect compared with the prior art, so that the loudspeaker vibrating plate with better quality is provided.
Drawings
FIG. 1 is a flowchart of a method according to a first embodiment of the present invention.
FIG. 2 is a manufacturing flow chart of the first embodiment of the present invention.
FIG. 3 is a perspective view of a substrate during a providing step according to a first embodiment of the present invention.
Fig. 4 is a sectional view of the first embodiment of the present invention at the hot press forming step.
FIG. 5 is a perspective view of the substrate after the thermoforming step according to the first embodiment of the present invention.
FIG. 6 is a schematic diagram illustrating a cutting step according to the first embodiment of the present invention.
FIG. 7 is a schematic diagram illustrating a cutting step according to the first embodiment of the present invention.
Fig. 8 is a perspective view of a vibrating plate according to a first embodiment of the present invention.
FIG. 9 is a perspective view of a substrate after a thermoforming step in accordance with a second embodiment of the present invention.
FIG. 10 is a perspective view of a substrate after a thermoforming step in accordance with a third embodiment of the present invention.
Wherein the reference numerals are as follows:
s1 providing step
S2 impregnation step
S3 drying step
S4 Hot Press Molding step
S5 cutting step
10 base material
11 diaphragm forming region
12 location part
121 convex part
122 spacing groove
20 trough body
21 resin
30 drying equipment
40 hot pressing die
41 first mould
411 first press-fit surface
412 positioning groove
413 hot-pressing part
42 second die
421 second press-fit surface
422 positioning column
423 hot pressing part
50 cutting device
51 cutting member
52 fastener
60 vibrating reed
Center point A
Detailed Description
Referring to fig. 1 and 2, and fig. 3 to 5, there are shown a method flowchart, a manufacturing flowchart, a perspective view of a substrate 10, a cross-sectional view in a thermoforming step S4, and a perspective view after the thermoforming step S4 of a first embodiment of the present invention, which disclose a method for manufacturing a speaker diaphragm using a positioning structure, the method comprising:
a providing step S1, providing a substrate 10, wherein the substrate 10 is flexible and has a strip shape, and one side surface of the substrate 10 has a plurality of preformed vibration plate forming areas 11, and the vibration plate forming areas 11 are in a geometric range, such as a circle, a rectangle, an ellipse or other geometric ranges suitable for forming a vibration plate of a speaker. In this embodiment, the vibrating piece forming area 11 is a circular area, a center point a for pre-positioning is defined at a center position of the substrate 10, the vibrating piece forming area 11 is surrounded by a periphery of the center point a, the vibrating piece forming area 11 is spaced apart from the center point a, the substrate 10 is exemplified by defining four vibrating piece forming areas 11, and the vibrating piece forming area 11 is circular. The base material 10 is selected from one or a combination of bamboo fiber, Aramid fiber, polyester fiber, cotton fiber, acryl fiber, silk fiber, and polyvinyl naphthene fiber. In this example, the cotton fiber is taken as an example, but the embodiment of the present invention is not limited thereto.
An impregnation step S2, impregnating the substrate 10 provided in the step S1 in a resin 21; in this embodiment, the solution of the resin 21 is disposed in a tank 20.
A drying step S3, drying the substrate 10 impregnated with the resin 21, in this embodiment, the substrate 10 is mainly dried by a drying device 30, so that the substrate 10 has a certain structural strength, toughness and elasticity.
In a hot press forming step S4, referring to fig. 4 and 5, a hot press mold 40 heats and pressurizes the vibrating plate forming region 11 by a hot press method, so that the substrate 10 forms a positioning portion 12. In the present embodiment, the hot pressing mold 40 includes a first mold 41 and a second mold 42, one side of the first mold 41 has a first pressing surface 411, the first pressing surface 411 is concavely provided with at least one circular positioning groove 412, one side of the second mold 42 has a second pressing surface 421, and the second pressing surface 421 corresponds to the positioning groove 412 and is convexly provided with a cylindrical positioning post 422. The first pressing surface 411 and the second pressing surface 421 respectively have a plurality of heat pressing portions 413 and 423, the heat pressing portions 413 and 423 are in a shape of a wavy disc, the heat pressing portions 413 of the first pressing surface 411 are respectively adjacent to the positioning groove 412, and the heat pressing portions 423 of the second pressing surface 421 are respectively adjacent to the positioning post 422. Therefore, in the thermoforming step S4, the first mold 41 and the second mold 42 are pressed together, and the positioning groove 412 and the positioning post 422 are disposed so that the positioning portion 12 is formed by the substrate 10 during pressing. In addition, when the thermal pressing portion 413 of the first pressing surface 411 and the thermal pressing portion 423 of the second pressing surface 421 are pressed, the vibrating piece forming area 11 is made to be a disk wave shape.
In the present embodiment, please refer to fig. 4 again, the positioning portion 12 formed on the substrate 10 is a cylindrical protrusion 121 protruding from one side of the substrate 10, and a limiting groove 122 is recessed from the other side of the substrate 10 corresponding to the protrusion 121.
A cutting step S5, corresponding to the positioning portion 12, then cuts the diaphragm forming area 11 and obtains a plurality of diaphragms 60. In the present embodiment, please refer to fig. 6, fig. 7 and fig. 8, in the cutting step S5, a cutting device 50 is mainly used to pass through the positioning portion 12, so as to accurately correspond to the positioning portion 12, and then the vibration piece forming area 11 is cut, so as to obtain a plurality of vibration pieces 60, and the positioning portion 12 is left on the substrate 10. The cutting device 50 further includes a plurality of cutting members 51 and a fixing member 52, wherein the fixing member 52 is inserted into the limiting groove 122 and fixes the protrusion 121 of the positioning portion 12, so that the cutting members 51 can be accurately positioned with respect to the vibrating piece forming region 11 and further cut.
For a further understanding of the nature of the structures, uses, and advantages of the invention, as well as the intended purpose, reference should be made to the following detailed description of the invention, which is to be read in connection with the accompanying drawings and to the accompanying drawings, in which:
referring to fig. 1 and fig. 3 to 8, a method flowchart, a cross-sectional view at the time of the thermoforming step S4, a perspective view of the substrate 10 after the thermoforming step S4, an operation diagram at the time of the cutting step S5, and a three-dimensional view of the vibrating plate according to the first embodiment of the present invention are shown. In the process state, a positioning portion 12 is formed on the substrate 10 mainly by the hot press forming step S4; in addition, with the arrangement of the positioning portion 12, the fixing member 52 is inserted into the limiting groove 122 and fixes the protrusion 121, so that the cutting member 51 can cut the vibrating piece forming region 11 accurately and correspondingly, thereby obtaining a plurality of vibrating pieces 60.
Therefore, the present invention can accurately cut a plurality of vibrating reeds 60 on the substrate 10, and effectively save material cost and shorten working hours; meanwhile, the cutting effect is more accurate than that of the prior art, so that the horn vibrating reed 60 with better quality is provided.
Fig. 9 is a perspective view of the substrate 10 after the thermoforming step S4 according to the second embodiment of the present invention. Compared with the first embodiment, the difference between the present embodiment and the first embodiment is that in the hot press forming step S4, the first pressing surface 411 is concavely provided with a plurality of positioning slots 412, one side of the second mold 42 is provided with a second pressing surface 421, and the second pressing surface 421 is convexly provided with a positioning post 422 corresponding to the positioning slots 412 respectively; in the thermoforming step S4, when the positioning groove 412 and the positioning post 422 are pressed, the substrate 10 is formed with a plurality of positioning portions 12, the positioning portions 12 are evenly distributed on the substrate 10, and the positioning portions 12 are adjacent to the outer periphery of the vibrating piece forming region 11. More specifically, the cutting device 50 also has a plurality of fixing members 52, and the fixing members 52 are also inserted into the limiting grooves 122, so that the cutting member 51 can cut the diaphragm forming region 11 more accurately and obtain a plurality of diaphragms 60. Therefore, the present embodiment can achieve the same effects as the first embodiment.
Fig. 10 is a perspective view of the substrate 10 after the thermoforming step S4 according to the third embodiment of the present invention. This embodiment is different from the first embodiment in that the positioning post 422 has a rectangular column shape and the positioning groove 412 has a rectangular groove, so in the hot press forming step S4, the convex portion 121 of the positioning portion 12 has a rectangular column shape; more specifically, the protrusion 121 of the present embodiment has a rectangular column shape, which has better positioning effect than the protrusion 121 of the first embodiment having a cylindrical shape. Therefore, the present embodiment can achieve the same effects as the first embodiment.
It should be noted that the convex portion 121 of the positioning portion 12 of the present invention is in a cylindrical shape or a rectangular cylindrical shape, which is one of the preferred embodiments of the present invention, and therefore, the convex portion 121 of the positioning portion 12 can also be in other polygonal geometric cylindrical shapes.
The features of the invention and their expected effects are further set forth below:
the method for manufacturing a speaker vibrating reed using a positioning structure of the present invention mainly uses the arrangement of the positioning portion 12, so that the cutting device 50 can correspond to the positioning portion 12 in the cutting step S5, and then the vibrating reed forming area 11 is cut to obtain a plurality of vibrating reeds 60. Therefore, the present invention can accurately cut a plurality of vibrating reeds 60 on the substrate 10, and effectively save material cost and shorten working hours; meanwhile, the cutting effect is more accurate than that of the prior art, so that the horn vibrating reed 60 with better quality is provided.
In summary, the present invention has been made in an extremely practical and advanced manner in the same kind of products, and the same structure is not found in the literature after looking up the technical data about such structure at home and abroad, so the present invention has been provided with the patent requirements and the application is made by the following appended method.
However, the above description is only a preferred embodiment of the present invention, and therefore, the present invention should not be limited by the above description, but should be construed as being limited by the appended claims.
Claims (8)
1. A method for manufacturing a loudspeaker vibrating plate by using a positioning structure is characterized by comprising the following steps:
a providing step of providing a substrate having a plurality of preformed vibration plate forming regions on one side surface thereof;
an impregnation step of impregnating the base material in a resin;
a drying step, drying the base material impregnated with the resin;
a step of hot press forming, in which a hot press mold heats and pressurizes the substrate in a hot press manner, so that the substrate is simultaneously formed with the vibrating piece forming region and at least one positioning part, wherein the vibrating piece forming region comprises a plurality of vibrating pieces;
and a cutting step, wherein a cutting device is arranged through the positioning part, so that the positioning part is accurately corresponding to the cutting device, then the vibrating piece forming area is cut, a plurality of vibrating pieces are obtained, and the positioning part is reserved on the base material.
2. The method of claim 1, wherein the hot pressing mold comprises a first mold and a second mold, one side of the first mold has a first pressing surface, the first pressing surface has at least one positioning groove, and one side of the second mold has a second pressing surface, the second pressing surface has a positioning post protruding from the positioning groove.
3. The method as claimed in claim 2, wherein the first and second pressing surfaces have a plurality of heat pressing portions, the heat pressing portions of the first pressing surface are respectively adjacent to the positioning groove, and the heat pressing portions of the second pressing surface are respectively adjacent to the positioning post.
4. The method for fabricating a speaker vibrating reed with a positioning structure as claimed in claim 2, wherein the first press-fit surface has a plurality of positioning grooves and one side of the second mold has a second press-fit surface, the second press-fit surface has a positioning post corresponding to the positioning grooves, and a plurality of positioning portions are formed on the substrate when the positioning grooves are pressed against the positioning posts in the step of hot press-forming, and the positioning portions are evenly distributed on the substrate.
5. The method of claim 1, wherein the substrate defines a center point for pre-positioning, the center point being surrounded by the diaphragm-forming region, the diaphragm-forming region being spaced apart from the center point by a predetermined distance.
6. The method as claimed in claim 1, wherein the positioning portion is a protrusion protruding from one side of the substrate, and the other side of the substrate is recessed with a limiting groove corresponding to the protrusion.
7. The method of claim 6, wherein the protrusion is cylindrical.
8. The method as claimed in claim 1, wherein the cutting device has at least one cutting member for correspondingly fixing the positioning portion and at least one fixing member for correspondingly cutting the diaphragm forming region.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610623833.2A CN107682804B (en) | 2016-08-02 | 2016-08-02 | Method for manufacturing loudspeaker vibrating piece by using positioning structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610623833.2A CN107682804B (en) | 2016-08-02 | 2016-08-02 | Method for manufacturing loudspeaker vibrating piece by using positioning structure |
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| CN107682804A CN107682804A (en) | 2018-02-09 |
| CN107682804B true CN107682804B (en) | 2020-02-07 |
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| CN201610623833.2A Active CN107682804B (en) | 2016-08-02 | 2016-08-02 | Method for manufacturing loudspeaker vibrating piece by using positioning structure |
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| CN110876110B (en) * | 2018-08-29 | 2022-02-01 | 大原博 | Apparatus and method for manufacturing vibrating piece of loudspeaker with shaped cut |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1761367A (en) * | 2004-10-15 | 2006-04-19 | 浙江天乐集团有限公司 | Automatic machine for fabricating localized supporting sheet |
| CN102970649A (en) * | 2012-11-23 | 2013-03-13 | 黄清山 | Damper forming pressing die |
| CN104768118A (en) * | 2015-02-09 | 2015-07-08 | 常州阿木奇声学科技有限公司 | Method for manufacturing vibrating diaphragms of moving-iron units with high efficiency |
| CN105050023A (en) * | 2015-05-27 | 2015-11-11 | 歌尔声学股份有限公司 | Manufacturing method for loudspeaker reinforcing part |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004098236A1 (en) * | 1999-01-27 | 2004-11-11 | Toshihide Inoue | Speaker diaphragm |
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- 2016-08-02 CN CN201610623833.2A patent/CN107682804B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1761367A (en) * | 2004-10-15 | 2006-04-19 | 浙江天乐集团有限公司 | Automatic machine for fabricating localized supporting sheet |
| CN102970649A (en) * | 2012-11-23 | 2013-03-13 | 黄清山 | Damper forming pressing die |
| CN104768118A (en) * | 2015-02-09 | 2015-07-08 | 常州阿木奇声学科技有限公司 | Method for manufacturing vibrating diaphragms of moving-iron units with high efficiency |
| CN105050023A (en) * | 2015-05-27 | 2015-11-11 | 歌尔声学股份有限公司 | Manufacturing method for loudspeaker reinforcing part |
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