CN108053818B - Loudspeaker positioning support sheet and preparation method thereof - Google Patents
Loudspeaker positioning support sheet and preparation method thereof Download PDFInfo
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- CN108053818B CN108053818B CN201810073032.2A CN201810073032A CN108053818B CN 108053818 B CN108053818 B CN 108053818B CN 201810073032 A CN201810073032 A CN 201810073032A CN 108053818 B CN108053818 B CN 108053818B
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- support piece
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Classifications
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
- G10K9/18—Details, e.g. bulbs, pumps, pistons, switches or casings
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
- D02G3/04—Blended or other yarns or threads containing components made from different materials
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/36—Cored or coated yarns or threads
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/44—Yarns or threads characterised by the purpose for which they are designed
- D02G3/447—Yarns or threads for specific use in general industrial applications, e.g. as filters or reinforcement
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D1/00—Woven fabrics designed to make specified articles
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/40—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads
- D03D15/47—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads multicomponent, e.g. blended yarns or threads
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
- D10B2201/01—Natural vegetable fibres
- D10B2201/02—Cotton
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
- D10B2331/021—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides aromatic polyamides, e.g. aramides
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
The invention relates to a loudspeaker positioning support piece and a preparation method thereof, wherein core-spun yarns are used as raw materials of the loudspeaker positioning support piece, the core-spun yarns are of a sheath-core structure, the core of each core-spun yarn is polyester filament, and the sheath of each core-spun yarn is cotton or aramid short fiber. The loudspeaker positioning support piece solves the problem that sound distortion is caused by abnormal sound generated when the positioning support piece works, the core-spun yarn is adopted as the raw material for weaving, the strength of the loudspeaker positioning support piece is increased by utilizing the sheath-core structure of the yarn, the smoothness is better, the fatigue resistance is improved, so that the abnormal sound is not generated when the positioning support piece works, and the sound distortion is avoided or reduced.
Description
Technical Field
The invention relates to a loudspeaker positioning support chip and a preparation method thereof.
Background
At present, the manufacturing process of the loudspeaker positioning support piece comprises the following steps: the cloth is impregnated by phenolic resin, hot-pressed by a mould and then cured and molded. The used cloth is woven by common yarns, the common yarns are formed by mixing and weaving county committee, and after the common yarns are woven, the common yarns are easily damaged by high temperature in the forming process of the positioning support piece, so that the strength of the product is reduced, and brittle fracture is possibly found, so that abnormal sound is generated when a finished product works, the sound emission is influenced, and the sound distortion is caused.
Disclosure of Invention
One objective of the present invention is to provide a speaker positioning support.
The loudspeaker positioning support sheet adopts core-spun yarns as raw materials, the core-spun yarns are of a sheath-core structure, the core of the core-spun yarns is polyester filament, and the sheath of the core-spun yarns is cotton or aramid short fiber.
The loudspeaker positioning support piece solves the problem that sound distortion is caused by abnormal sound generated when the positioning support piece works, the core-spun yarn is adopted as the raw material for weaving, the strength of the loudspeaker positioning support piece is increased by utilizing the sheath-core structure of the yarn, the smoothness is better, the fatigue resistance is improved, so that the abnormal sound is not generated when the positioning support piece works, and the sound distortion is avoided or reduced.
In addition, the horn positioning support piece according to the above embodiment of the present invention may further have the following additional technical features:
in a preferred embodiment of the present invention, the polyester filament yarn is 20 to 30 parts by weight, and the cotton is 70 to 80 parts by weight.
In a preferred embodiment of the present invention, the polyester filament yarn is 25 parts by weight, and the cotton is 75 parts by weight.
In a preferred embodiment of the present invention, the polyester filament yarn is 20 to 30 parts by weight, and the aramid staple fiber is 70 to 80 parts by weight.
In a preferred embodiment of the present invention, the polyester filament yarn is 25 parts by weight, and the aramid staple fiber is 75 parts by weight.
The invention also aims to provide a preparation method of the loudspeaker positioning support piece.
The preparation method of the loudspeaker positioning support chip comprises the following steps: s101: mechanically mixing, opening and removing impurities from the cotton or the aramid short fiber through an opening and picking machine to obtain a cotton roll; s102: carding the cotton roll by a carding machine to obtain a first cotton sliver; s103: combining every 6-8 first cotton slivers, putting the combined cotton slivers into a drawing frame to prepare 1 second cotton sliver, and then thinning the second cotton sliver to the average diameter of the first cotton sliver so that the weight unevenness rate is not more than 1%; s104: removing impurities and coarse short fibers in the second cotton sliver processed in the step S103 by using a combing machine; s105: processing the second cotton sliver processed in the step S104 into roving with different counts and different twists by using a roving machine; s106: drafting and thinning the roving to 10-25 tex, adding 6 twists/10 cm-12 twists/10 cm, and then covering the polyester filament yarn with a core; s107: winding the product obtained in the step S106 into a bobbin with the tension coil weight of 8.5 g-12 g under the condition that the speed of a winder is 2500 r/min-2700 r/min; s108: winding 20-40 warps on a warp beam of a warping machine in parallel according to the length of 150-160 m/strip and the width of 10-20 m by using the warping machine; s109: absorbing the size of the beam finished in the step S108 by using a sizing machine, and then drying the beam; s110: using a warp drawing-in machine to draw in the warp yarns on the warp beam, then using a shuttle loom to interweave the warp yarns into grey cloth and winding the grey cloth into a cloth roll; s111: and cutting the cloth roll, then immersing the cloth roll in phenolic resin for 2-8 h, drying and cutting the cloth roll into pieces, and then carrying out hot pressing and perforation by using a mould at the temperature of 100-120 ℃ to obtain the loudspeaker positioning support piece.
Further, in the step S109, the drying temperature is 60 ℃ to 80 ℃, and the drying time is 3h to 8 h.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Detailed Description
The following detailed description of embodiments of the invention is intended to be illustrative, and not to be construed as limiting the invention.
Example 1
Embodiment 1 provides a loudspeaker location support piece, adopts covering yarn as the raw materials, covering yarn is the skin-core structure, just the core of covering yarn is polyester filament, the skin of covering yarn is cotton. The polyester filament yarn comprises 25 parts by weight of cotton and 75 parts by weight of polyester filament yarn.
The method for manufacturing the horn positioning support piece of embodiment 1 includes the following steps:
(1) and mechanically mixing, opening and removing impurities from the cotton through a scutcher to obtain the cotton roll.
(2) And carding the cotton roll by a carding machine to obtain a first cotton sliver.
(3) And (3) combining every 6-8 first cotton slivers, putting the combined cotton slivers into a drawing frame to prepare 1 second cotton sliver, and then thinning the second cotton sliver to the average diameter of the first cotton sliver so that the weight unevenness rate is not more than 1%.
(4) And (4) removing impurities and coarse short fibers in the second cotton sliver treated in the step (3) by using a combing machine.
(5) And (4) processing the second sliver treated in the step (4) into roving with different counts and different twists by using a roving machine.
(6) And drafting and thinning the roving to 10-25 tex, adding 6 twists/10 cm-12 twists/10 cm, and then covering the polyester filament yarn.
(7) And (4) winding the product obtained in the step (6) into a bobbin with the tension coil weight of 8.5-12 g under the condition that the speed of the bobbin winder is 2500 r/min-2700 r/min.
(8) 20 to 40 warps are wound on a warp beam of the warping machine in parallel according to the length of 150 to 160 m/strip and the width of 10 to 20m by the warping machine.
(9) And (3) absorbing the size of the beam finished in the step (8) by using a sizing machine, and drying for 3-8 h at the temperature of 60-80 ℃.
(10) And (3) the warp yarns on the warp beam are passed through by a warp-passing machine, and then are interwoven into a grey fabric by a shuttle loom and wound into a cloth roll.
(11) And cutting the cloth roll, then immersing the cloth roll in phenolic resin for 2-8 h, drying and cutting the cloth roll into pieces, and then carrying out hot pressing and perforation by using a mould at the temperature of 100-120 ℃ to obtain the loudspeaker positioning support piece.
Example 2
Embodiment 2 provides a loudspeaker location support piece, adopts covering yarn as the raw materials, covering yarn is the skin-core structure, just the core of covering yarn is the polyester filament, the skin of covering yarn is the aramid fiber short fiber. The weight portion of the polyester filament yarn is 20-30 parts, and the weight portion of the aramid staple fiber is 70-80 parts.
The method for manufacturing the horn positioning support piece of embodiment 2 includes the following steps:
(1) and mechanically mixing, opening and removing impurities from the aramid short fibers through a scutching cotton machine to obtain the cotton rolls.
(2) And carding the cotton roll by a carding machine to obtain a first cotton sliver.
(3) And (3) combining every 6-8 first cotton slivers, putting the combined cotton slivers into a drawing frame to prepare 1 second cotton sliver, and then thinning the second cotton sliver to the average diameter of the first cotton sliver so that the weight unevenness rate is not more than 1%.
(4) And (4) removing impurities and coarse short fibers in the second cotton sliver treated in the step (3) by using a combing machine.
(5) And (4) processing the second sliver treated in the step (4) into roving with different counts and different twists by using a roving machine.
(6) And drafting and thinning the roving to 10-25 tex, adding 6 twists/10 cm-12 twists/10 cm, and then covering the polyester filament yarn.
(7) And (4) winding the product obtained in the step (6) into a bobbin with the tension coil weight of 8.5-12 g under the condition that the speed of the bobbin winder is 2500 r/min-2700 r/min.
(8) 20 to 40 warps are wound on a warp beam of the warping machine in parallel according to the length of 150 to 160 m/strip and the width of 10 to 20m by the warping machine.
(9) And (3) absorbing the size of the beam finished in the step (8) by using a sizing machine, and drying for 3-8 h at the temperature of 60-80 ℃.
(10) And (3) the warp yarns on the warp beam are passed through by a warp-passing machine, and then are interwoven into a grey fabric by a shuttle loom and wound into a cloth roll.
(11) And cutting the cloth roll, then immersing the cloth roll in phenolic resin for 2-8 h, drying and cutting the cloth roll into pieces, and then carrying out hot pressing and perforation by using a mould at the temperature of 100-120 ℃ to obtain the loudspeaker positioning support piece.
Example 3
Embodiment 3 provides a loudspeaker location support, adopts covering yarn as raw materials, covering yarn is the skin-core structure, and the core of covering yarn is polyester filament, the skin of covering yarn is cotton, the part by weight of cotton is 70.
The method for manufacturing the horn positioning support piece of embodiment 3 includes the following steps:
(1) and mechanically mixing, opening and removing impurities from the cotton through a scutcher to obtain the cotton roll.
(2) And carding the cotton roll by a carding machine to obtain a first cotton sliver.
(3) And (3) combining every 6-8 first cotton slivers, putting the combined cotton slivers into a drawing frame to prepare 1 second cotton sliver, and then thinning the second cotton sliver to the average diameter of the first cotton sliver so that the weight unevenness rate is not more than 1%.
(4) And (4) removing impurities and coarse short fibers in the second cotton sliver treated in the step (3) by using a combing machine.
(5) And (4) processing the second sliver treated in the step (4) into roving with different counts and different twists by using a roving machine.
(6) And drafting and thinning the roving to 10-25 tex, adding 6 twists/10 cm-12 twists/10 cm, and then covering the polyester filament yarn.
(7) And (4) winding the product obtained in the step (6) into a bobbin with the tension coil weight of 8.5-12 g under the condition that the speed of the bobbin winder is 2500 r/min-2700 r/min.
(8) 20 to 40 warps are wound on a warp beam of the warping machine in parallel according to the length of 150 to 160 m/strip and the width of 10 to 20m by the warping machine.
(9) And (3) absorbing the size of the beam finished in the step (8) by using a sizing machine, and drying for 3-8 h at the temperature of 60-80 ℃.
(10) And (3) the warp yarns on the warp beam are passed through by a warp-passing machine, and then are interwoven into a grey fabric by a shuttle loom and wound into a cloth roll.
(11) And cutting the cloth roll, then immersing the cloth roll in phenolic resin for 2-8 h, drying and cutting the cloth roll into pieces, and then carrying out hot pressing and perforation by using a mould at the temperature of 100-120 ℃ to obtain the loudspeaker positioning support piece.
The loudspeaker positioning support piece solves the problem that sound distortion is caused by abnormal sound generated when the positioning support piece works, the core-spun yarn is adopted as the raw material for weaving, the strength of the loudspeaker positioning support piece is increased by utilizing the sheath-core structure of the yarn, the smoothness is better, the fatigue resistance is improved, so that the abnormal sound is not generated when the positioning support piece works, and the sound distortion is avoided or reduced.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (2)
1. The preparation method of the loudspeaker positioning support chip is characterized in that core-spun yarns are adopted as raw materials, the core-spun yarns are of a sheath-core structure, the core of each core-spun yarn is polyester filament, and the sheath of each core-spun yarn is cotton or aramid staple fiber;
the weight portion of the polyester filament yarn is 20-30 parts, the weight portion of the cotton is 70-80 parts, and the weight portion of the aramid short fiber is 70-80 parts;
the preparation method comprises the following steps:
s101: mechanically mixing, opening and removing impurities from the cotton or the aramid short fiber through an opening and picking machine to obtain a cotton roll;
s102: carding the cotton roll by a carding machine to obtain a first cotton sliver;
s103: combining every 6-8 first cotton slivers, putting the combined cotton slivers into a drawing frame to prepare 1 second cotton sliver, and then thinning the second cotton sliver to the average diameter of the first cotton sliver so that the weight unevenness rate is not more than 1%;
s104: removing impurities and coarse short fibers in the second cotton sliver processed in the step S103 by using a combing machine;
s105: processing the second cotton sliver processed in the step S104 into roving with different counts and different twists by using a roving machine;
s106: drafting and thinning the roving to 10-25 tex, adding 6 twists/10 cm-12 twists/10 cm, and then covering the polyester filament yarn with a core;
s107: winding the product obtained in the step S106 into a bobbin with the tension coil weight of 8.5 g-12 g under the condition that the speed of a winder is 2500 r/min-2700 r/min;
s108: winding 20-40 warps on a warp beam of a warping machine in parallel according to the length of 150-160 m/strip and the width of 10-20 m by using the warping machine;
s109: absorbing the size of the beam finished in the step S108 by using a sizing machine, and then drying the beam;
s110: using a warp drawing-in machine to draw in the warp yarns on the warp beam, then using a shuttle loom to interweave the warp yarns into grey cloth and winding the grey cloth into a cloth roll;
s111: and cutting the cloth roll, then immersing the cloth roll in phenolic resin for 2-8 h, drying and cutting the cloth roll into pieces, and then carrying out hot pressing and perforation by using a mould at the temperature of 100-120 ℃ to obtain the loudspeaker positioning support piece.
2. The method for manufacturing a horn positioning support according to claim 1, wherein in the step S109, the drying temperature is 60 ℃ to 80 ℃ and the drying time is 3h to 8 h.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810073032.2A CN108053818B (en) | 2018-01-25 | 2018-01-25 | Loudspeaker positioning support sheet and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810073032.2A CN108053818B (en) | 2018-01-25 | 2018-01-25 | Loudspeaker positioning support sheet and preparation method thereof |
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| CN108053818B true CN108053818B (en) | 2021-11-02 |
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