CN116320956A - Preparation process of paper disc loudspeaker - Google Patents
Preparation process of paper disc loudspeaker Download PDFInfo
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- CN116320956A CN116320956A CN202310202450.8A CN202310202450A CN116320956A CN 116320956 A CN116320956 A CN 116320956A CN 202310202450 A CN202310202450 A CN 202310202450A CN 116320956 A CN116320956 A CN 116320956A
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- paper disc
- pulp
- loudspeaker
- cavity
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- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 229920001131 Pulp (paper) Polymers 0.000 claims abstract description 48
- 239000012188 paraffin wax Substances 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- 238000006243 chemical reaction Methods 0.000 claims description 20
- 239000002002 slurry Substances 0.000 claims description 19
- 238000010009 beating Methods 0.000 claims description 17
- 238000004519 manufacturing process Methods 0.000 claims description 13
- 238000004537 pulping Methods 0.000 claims description 12
- 238000007865 diluting Methods 0.000 claims description 11
- 238000001035 drying Methods 0.000 claims description 11
- 238000009740 moulding (composite fabrication) Methods 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- 239000011358 absorbing material Substances 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 238000007731 hot pressing Methods 0.000 claims description 2
- 238000004080 punching Methods 0.000 claims description 2
- 239000008187 granular material Substances 0.000 abstract description 19
- 238000004043 dyeing Methods 0.000 abstract description 12
- 230000007547 defect Effects 0.000 abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 27
- 238000004062 sedimentation Methods 0.000 description 18
- 230000000903 blocking effect Effects 0.000 description 9
- 230000007306 turnover Effects 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2231/00—Details of apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor covered by H04R31/00, not provided for in its subgroups
- H04R2231/001—Moulding aspects of diaphragm or surround
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Paper (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
The invention discloses a preparation process of a paper disc loudspeaker, which relates to the technical field of sound equipment, and aims at solving the problems that the paper disc of the traditional loudspeaker has the defect of small elastic modulus, and is acoustically dyed when vibrating, so that the sound is turbid in a specific frequency band, the tone quality is reduced, and meanwhile, the expansion of high frequency is severely limited, the preparation process of the paper disc loudspeaker comprises the following steps: (1): pulp was prepared, (2): salvaging paper pulp, (3): baking and curing the paper disc, 4): the speaker housing is divided into a first cavity and a second cavity by a product tray. According to the invention, after the loudspeaker paper disc passes through the emulsified paraffin, the loudspeaker paper disc is divided into the first cavity and the second cavity which are distributed up and down, and the sound absorbing granular material is tightly filled in the second cavity so as to achieve proper Young modulus, and the existing high internal resistance of paper pulp can effectively solve the problem of sound dyeing, so that the sound sounds cleaner and natural, and the high frequency is widened.
Description
Technical Field
The invention relates to the technical field of sound equipment, in particular to a preparation process of a paper disc loudspeaker.
Background
A speaker is a transducer device that converts electrical signals into acoustic signals. When different electronic energy is transmitted to the voice coil, the voice coil generates an energy which interacts with the magnetic field of the magnet, and the interaction causes the paper disc to vibrate.
The speaker is widely used as a sounding structure in a mobile phone, a television, a sound box or the like, however, with the improvement of living standard of people, the functional quality of the speaker is more and more required.
In a traditional loudspeaker, paper is generally used as a paper disc, and due to some characteristics and disadvantages of the paper, the inherent characteristics and disadvantages of the loudspeaker are brought to the paper, for example, the paper has the advantages of high internal damping and low density, but also has the disadvantage of low elastic modulus, and the paper disc causes sound dyeing during vibration, so that sound turbidity and sound quality are reduced in a specific frequency band, and meanwhile, the expansion of high frequency is severely limited.
Therefore, how to solve the above problems becomes a key to improve the performance of the speaker.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a preparation process of a paper disc loudspeaker, which is characterized in that after the paper disc of the loudspeaker passes through emulsified paraffin, the paper disc of the loudspeaker is divided into a first cavity and a second cavity which are distributed up and down, and sound absorption granular materials are tightly filled in the second cavity so as to achieve proper Young modulus. The existing high internal resistance of the paper pulp can effectively solve the problem of sound dyeing, so that the sound sounds cleaner and natural, and the high frequency is widened. Meanwhile, the advantages of high internal resistance and low density of paper pulp are combined, the defects of the prior art are overcome, the defect that the traditional loudspeaker paper disc is small in elastic modulus is effectively overcome, the paper disc is subjected to acoustic dyeing during vibration, the sound is turbid in a specific frequency band, the sound quality is reduced, and meanwhile, the problem that the expansion of high frequency is severely limited is solved.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a preparation process of a paper disc loudspeaker comprises the following steps:
(1): preparing paper pulp;
(2): salvaging paper pulp and preparing a paper disc;
(3): baking and solidifying the paper disc to obtain a loudspeaker paper disc;
(4): dividing the speaker housing into a first cavity and a second cavity with a paper tray;
(5): the first chamber accommodates an electroacoustic transducer, and the second chamber accommodates a sound absorbing material.
(6): the voice coil framework is fixedly connected with the paper disc, the flicking wave is fixedly sleeved on the paper disc of the loudspeaker side by side, the peripheral edge of the flicking wave is fixed on the inner wall of the loudspeaker shell, and the voice coil, the voice coil framework, the flicking wave and the paper disc are coaxially arranged.
Preferably, the method for preparing the paper pulp comprises the following steps: and (3) shredding the pulp board, putting the pulp board into a pulping machine, adding water, pulping, and diluting the obtained pulp with water to obtain the pulp.
Preferably, emulsified paraffin is added into the beater during beating, and the mass of the emulsified paraffin is 15-20% of the mass of the absolute dry pulp.
Preferably, the paper disc preparation method comprises the steps of taking out paper pulp, hot-pressing, forming and punching to obtain a pretreated paper disc, and drying at 110-120 ℃ for 20-40 min to obtain the paper disc.
Preferably, the first cavity is located above the second cavity.
Preferably, the paper disc is cone-shaped, a mounting hole is reserved at the tip of the paper disc, and the accommodating electroacoustic conversion device is fixed at the position of the mounting hole.
Preferably, the elastic wave is provided with a plurality of concentric circular rings with gradually increased diameters, and the concentric circular rings are sequentially connected together.
Preferably, the sound absorbing material is sound absorbing particles, and the sound absorbing particles are tightly filled in the second cavity.
The beneficial effects of the invention are as follows:
after the loudspeaker paper disc passes through the emulsified paraffin, the loudspeaker paper disc is divided into a first cavity and a second cavity which are distributed up and down, and sound absorbing granular materials are tightly filled in the second cavity to achieve proper Young modulus. The existing high internal resistance of the paper pulp can effectively solve the problem of sound dyeing, so that the sound sounds cleaner and natural, and the high frequency is widened. Meanwhile, the advantages of high internal resistance and low density of the paper pulp are combined.
Detailed Description
In the following, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments.
Embodiment 1, a process for preparing a paper tray speaker, comprising the steps of:
(1): preparing paper pulp, putting the crushed pulp board into a beating machine, adding emulsified paraffin into the beating machine, adding water, beating for 20min, and diluting the obtained pulp with water to obtain paper pulp;
(2): salvaging paper pulp, putting a copper wire mesh of the adsorbed blank paper disc on a turnover secondary pulp sedimentation machine die, removing the copper wire mesh, adsorbing the blank paper disc on the copper wire mesh of the pulp sedimentation machine die, and uniformly adsorbing the pulp for secondary pulp salvaging forming to obtain a pretreated paper disc;
(3): baking and solidifying the paper disc, drying for 20min at 110 ℃ to obtain the paper disc of the loudspeaker, visually observing transparency under lamplight, and removing paper discs with single side, slurry leakage, water track, slurry blocking, uneven edges and the like;
(4): dividing the speaker housing into a first cavity and a second cavity with a finished paper tray;
(5): the first cavity accommodates an electroacoustic conversion device, and the electroacoustic conversion device is fixed at a mounting hole reserved at the tip of the paper disc, and the second cavity is filled with half of sound absorbing granular materials.
(6): the voice coil framework is fixedly connected with the paper disc, the flicking wave is fixedly sleeved on the paper disc of the loudspeaker side by side, the peripheral edge of the flicking wave is fixed on the inner wall of the loudspeaker shell, and the voice coil, the voice coil framework, the flicking wave and the paper disc are coaxially arranged.
After the loudspeaker paper disc passes through the emulsified paraffin, the loudspeaker paper disc is divided into a first cavity and a second cavity which are distributed up and down, and the second cavity is filled with half of sound-absorbing granular materials so as to achieve proper Young modulus. The existing high internal resistance of the paper pulp can effectively solve the problem of sound dyeing, so that the sound sounds clean and natural. Meanwhile, the advantages of high internal resistance and low density of the paper pulp are combined.
Embodiment 2, a process for preparing a paper tray speaker, comprises the following steps:
(1): preparing paper pulp, putting the crushed pulp board into a beating machine, adding emulsified paraffin into the beating machine, adding water, beating for 15min, and diluting the obtained pulp with water to obtain paper pulp;
(2): salvaging paper pulp, putting a copper wire mesh of the adsorbed blank paper disc on a turnover secondary pulp sedimentation machine die, removing the copper wire mesh, adsorbing the blank paper disc on the copper wire mesh of the pulp sedimentation machine die, and uniformly adsorbing the pulp for secondary pulp salvaging forming to obtain a pretreated paper disc;
(3): baking and solidifying the paper disc, drying for 30min at 115 ℃ to obtain the paper disc of the loudspeaker, visually observing transparency under lamplight, and removing paper discs with single side, slurry leakage, water track, slurry blocking, uneven edges and the like;
(4): dividing the speaker housing into a first cavity and a second cavity with a finished paper tray;
(5): the first cavity accommodates an electroacoustic conversion device, and the electroacoustic conversion device is fixed at a mounting hole reserved at the tip of the paper disc, and the second cavity is tightly filled with sound-absorbing granular materials.
(6): the voice coil framework is fixedly connected with the paper disc, the flicking wave is fixedly sleeved on the paper disc of the loudspeaker side by side, the peripheral edge of the flicking wave is fixed on the inner wall of the loudspeaker shell, and the voice coil, the voice coil framework, the flicking wave and the paper disc are coaxially arranged.
After the loudspeaker paper disc passes through the emulsified paraffin, the loudspeaker paper disc is divided into a first cavity and a second cavity which are distributed up and down, and sound absorbing granular materials are tightly filled in the second cavity to achieve proper Young modulus. The existing high internal resistance of the paper pulp can effectively solve the problem of sound dyeing, so that the sound sounds cleaner and natural, and the high frequency is widened. Meanwhile, the advantages of high internal resistance and low density of the paper pulp are combined.
Embodiment 3, a process for preparing a paper tray speaker, comprises the following steps:
(1): preparing paper pulp, putting the crushed pulp board into a beating machine, adding emulsified paraffin into the beating machine, adding water, beating for 30min, and diluting the obtained pulp with water to obtain paper pulp;
(2): salvaging paper pulp, putting a copper wire mesh of the adsorbed blank paper disc on a turnover secondary pulp sedimentation machine die, removing the copper wire mesh, adsorbing the blank paper disc on the copper wire mesh of the pulp sedimentation machine die, and uniformly adsorbing the pulp for secondary pulp salvaging forming to obtain a pretreated paper disc;
(3): baking and solidifying the paper disc, drying at 110 ℃ for 25min to obtain the paper disc of the loudspeaker, visually observing transparency under lamplight, and removing paper discs with single side, slurry leakage, water track, slurry blocking, uneven edges and the like;
(4): dividing the speaker housing into a first cavity and a second cavity with a finished paper tray;
(5): the first cavity accommodates an electroacoustic conversion device, and the electroacoustic conversion device is fixed at a mounting hole reserved at the tip of the paper disc, and the second cavity is tightly filled with sound-absorbing granular materials.
(6): the voice coil framework is fixedly connected with the paper disc, the flicking wave is fixedly sleeved on the paper disc of the loudspeaker side by side, the peripheral edge of the flicking wave is fixed on the inner wall of the loudspeaker shell, and the voice coil, the voice coil framework, the flicking wave and the paper disc are coaxially arranged.
After the loudspeaker paper disc passes through the emulsified paraffin, the loudspeaker paper disc is divided into a first cavity and a second cavity which are distributed up and down, and sound absorbing granular materials are tightly filled in the second cavity, so that a higher Young modulus is achieved. The existing high internal resistance of the paper pulp can effectively solve the problem of sound dyeing, so that the sound sounds cleaner and natural, and the high frequency is widened. Meanwhile, the advantages of high internal resistance and low density of the paper pulp are combined.
Embodiment 4, a process for preparing a paper tray speaker, comprising the steps of:
(1): preparing paper pulp, putting the crushed pulp board into a beating machine, adding emulsified paraffin into the beating machine, adding water, beating for 30min, and diluting the obtained pulp with water to obtain paper pulp;
(2): salvaging paper pulp, putting a copper wire mesh of the adsorbed blank paper disc on a turnover secondary pulp sedimentation machine die, removing the copper wire mesh, adsorbing the blank paper disc on the copper wire mesh of the pulp sedimentation machine die, and uniformly adsorbing the pulp for secondary pulp salvaging forming to obtain a pretreated paper disc;
(3): baking and solidifying the paper disc, drying for 30min at 120 ℃ to obtain the paper disc of the loudspeaker, visually observing transparency under lamplight, and removing paper discs with single side, slurry leakage, water track, slurry blocking, uneven edges and the like;
(4): dividing the speaker housing into a first cavity and a second cavity with a finished paper tray;
(5): the first cavity accommodates the electroacoustic conversion device, and the electroacoustic conversion device is fixed at a mounting hole reserved at the tip of the paper disc, and the second cavity is not filled with sound absorbing granular materials.
(6): the voice coil framework is fixedly connected with the paper disc, the flicking wave is fixedly sleeved on the paper disc of the loudspeaker side by side, the peripheral edge of the flicking wave is fixed on the inner wall of the loudspeaker shell, and the voice coil, the voice coil framework, the flicking wave and the paper disc are coaxially arranged.
After the loudspeaker paper disc passes through the emulsified paraffin, the loudspeaker paper disc is divided into a first cavity and a second cavity which are distributed up and down, and only a lower Young modulus can be achieved.
Embodiment 5, a process for preparing a paper tray speaker, comprising the steps of:
(1): preparing paper pulp, putting the crushed pulp board into a beating machine, adding emulsified paraffin into the beating machine, adding water, beating for 15min, and diluting the obtained pulp with water to obtain paper pulp;
(2): salvaging paper pulp, putting a copper wire mesh of the adsorbed blank paper disc on a turnover secondary pulp sedimentation machine die, removing the copper wire mesh, adsorbing the blank paper disc on the copper wire mesh of the pulp sedimentation machine die, and uniformly adsorbing the pulp for secondary pulp salvaging forming to obtain a pretreated paper disc;
(3): baking and solidifying the paper disc, drying at 120 ℃ for 35min to obtain the paper disc of the loudspeaker, visually observing transparency under lamplight, and removing paper discs with single side, slurry leakage, water track, slurry blocking, uneven edges and the like;
(4): dividing the speaker housing into a first cavity and a second cavity with a finished paper tray;
(5): the first cavity accommodates an electroacoustic conversion device, and the electroacoustic conversion device is fixed at a mounting hole reserved at the tip of the paper disc, and the second cavity is filled with half of sound absorbing granular materials.
(6): the voice coil framework is fixedly connected with the paper disc, the flicking wave is fixedly sleeved on the paper disc of the loudspeaker side by side, the peripheral edge of the flicking wave is fixed on the inner wall of the loudspeaker shell, and the voice coil, the voice coil framework, the flicking wave and the paper disc are coaxially arranged.
After the loudspeaker paper disc passes through the emulsified paraffin, the loudspeaker paper disc is divided into a first cavity and a second cavity which are distributed up and down, and the second cavity is filled with half of sound-absorbing granular materials so as to achieve proper Young modulus. The existing high internal resistance of the paper pulp can effectively solve the problem of sound dyeing, so that the sound sounds cleaner and natural, and the high frequency is widened. Meanwhile, the advantages of high internal resistance and low density of the paper pulp are combined.
Embodiment 6, a process for preparing a paper tray speaker, comprising the steps of:
(1): preparing paper pulp, putting the crushed pulp board into a pulping machine, adding water, pulping for 15min, and diluting the obtained pulp with water to obtain paper pulp;
(2): salvaging paper pulp, putting a copper wire mesh of the adsorbed blank paper disc on a turnover secondary pulp sedimentation machine die, removing the copper wire mesh, adsorbing the blank paper disc on the copper wire mesh of the pulp sedimentation machine die, and uniformly adsorbing the pulp for secondary pulp salvaging forming to obtain a pretreated paper disc;
(3): baking and solidifying the paper disc, drying for 30min at 120 ℃ to obtain the paper disc of the loudspeaker, visually observing transparency under lamplight, and removing paper discs with single side, slurry leakage, water track, slurry blocking, uneven edges and the like;
(4): dividing the speaker housing into a first cavity and a second cavity with a finished paper tray;
(5): the first cavity accommodates an electroacoustic conversion device, and the electroacoustic conversion device is fixed at a mounting hole reserved at the tip of the paper disc, and the second cavity is tightly filled with sound-absorbing granular materials.
(6): the voice coil framework is fixedly connected with the paper disc, the flicking wave is fixedly sleeved on the paper disc of the loudspeaker side by side, the peripheral edge of the flicking wave is fixed on the inner wall of the loudspeaker shell, and the voice coil, the voice coil framework, the flicking wave and the paper disc are coaxially arranged.
The loudspeaker paper disc is divided into a first cavity and a second cavity which are distributed up and down, and sound absorbing granular materials are tightly filled in the second cavity, so that the loudspeaker paper disc can only achieve proper Young modulus, and sound sounds clean and natural.
Comparative example 1, a process for preparing a paper tray speaker, comprising the steps of:
(1): preparing paper pulp, putting the crushed pulp board into a pulping machine, adding water, pulping for 15min, and diluting the obtained pulp with water to obtain paper pulp;
(2): salvaging paper pulp, putting a copper wire mesh of the adsorbed blank paper disc on a turnover secondary pulp sedimentation machine die, removing the copper wire mesh, adsorbing the blank paper disc on the copper wire mesh of the pulp sedimentation machine die, and uniformly adsorbing the pulp for secondary pulp salvaging forming to obtain a pretreated paper disc;
(3): baking and solidifying the paper disc, drying at 120 ℃ for 35min to obtain the paper disc of the loudspeaker, visually observing transparency under lamplight, and removing paper discs with single side, slurry leakage, water track, slurry blocking, uneven edges and the like;
(4): dividing the speaker housing into a first cavity and a second cavity with a finished paper tray;
(5): the first cavity accommodates an electroacoustic conversion device, and the electroacoustic conversion device is fixed at a mounting hole reserved at the tip of the paper disc, and the second cavity is filled with half of sound absorbing granular materials.
(6): the voice coil framework is fixedly connected with the paper disc, the flicking wave is fixedly sleeved on the paper disc of the loudspeaker side by side, the peripheral edge of the flicking wave is fixed on the inner wall of the loudspeaker shell, and the voice coil, the voice coil framework, the flicking wave and the paper disc are coaxially arranged.
The loudspeaker paper disc is divided into the first cavity and the second cavity which are distributed up and down, and the second cavity is tightly filled with half of sound-absorbing granular materials, so that the lower Young modulus can be achieved, the problem of sound dyeing is basically solved, and the sound is clean and natural.
Comparative example 2, a process for producing a paper tray speaker, comprising the steps of:
(1): preparing paper pulp, putting the crushed pulp board into a pulping machine, adding water, pulping for 15min, and diluting the obtained pulp with water to obtain paper pulp;
(2): salvaging paper pulp, putting a copper wire mesh of the adsorbed blank paper disc on a turnover secondary pulp sedimentation machine die, removing the copper wire mesh, adsorbing the blank paper disc on the copper wire mesh of the pulp sedimentation machine die, and uniformly adsorbing the pulp for secondary pulp salvaging forming to obtain a pretreated paper disc;
(3): baking and solidifying the paper disc, drying at 120 ℃ for 40min to obtain the paper disc of the loudspeaker, visually observing transparency under lamplight, and removing paper discs with single side, slurry leakage, water track, slurry blocking, uneven edges and the like;
(4): dividing the speaker housing into a first cavity and a second cavity with a finished paper tray;
(5): the first cavity accommodates the electroacoustic conversion device, and the electroacoustic conversion device is fixed at a mounting hole reserved at the tip of the paper disc, and the second cavity is not filled with sound absorbing granular materials.
(6): the voice coil framework is fixedly connected with the paper disc, the flicking wave is fixedly sleeved on the paper disc of the loudspeaker side by side, the peripheral edge of the flicking wave is fixed on the inner wall of the loudspeaker shell, and the voice coil, the voice coil framework, the flicking wave and the paper disc are coaxially arranged.
The speaker paper disc is divided into a first cavity and a second cavity which are distributed up and down, so that proper Young's modulus cannot be achieved. The problem of sound dyeing cannot be solved, and noise exists in sound.
Comparative example 3, a process for preparing a paper tray speaker, comprising the steps of:
(1): preparing paper pulp, putting the crushed pulp board into a pulping machine, adding water, pulping for 15min, and diluting the obtained pulp with water to obtain paper pulp;
(2): salvaging paper pulp, putting a copper wire mesh of the adsorbed blank paper disc on a turnover secondary pulp sedimentation machine die, removing the copper wire mesh, adsorbing the blank paper disc on the copper wire mesh of the pulp sedimentation machine die, and uniformly adsorbing the pulp for secondary pulp salvaging forming to obtain a pretreated paper disc;
(3): baking and solidifying the paper disc, drying at 110 ℃ for 40min to obtain the paper disc of the loudspeaker, visually observing transparency under lamplight, and removing paper discs with single side, slurry leakage, water track, slurry blocking, uneven edges and the like;
(4): dividing the speaker housing into a first cavity and a second cavity with a finished paper tray;
(5): the first cavity accommodates an electroacoustic conversion device, and the electroacoustic conversion device is fixed at a mounting hole reserved at the tip of the paper disc, and the second cavity is tightly filled with sound-absorbing granular materials.
(6): the voice coil framework is fixedly connected with the paper disc, the flicking wave is fixedly sleeved on the paper disc of the loudspeaker side by side, the peripheral edge of the flicking wave is fixed on the inner wall of the loudspeaker shell, and the voice coil, the voice coil framework, the flicking wave and the paper disc are coaxially arranged.
The loudspeaker paper disc is divided into a first cavity and a second cavity which are distributed up and down, and sound absorbing granular materials are tightly filled in the second cavity so as to achieve proper Young modulus. The problem of sound dyeing is basically solved, and the sound sounds clean and natural.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (8)
1. The preparation process of the paper disc loudspeaker is characterized by comprising the following steps of:
(1): preparing paper pulp;
(2): salvaging paper pulp and preparing a paper disc;
(3): baking and solidifying the paper disc to obtain a loudspeaker paper disc;
(4): dividing the speaker housing into a first cavity and a second cavity with a paper tray;
(5): the first chamber accommodates an electroacoustic transducer, and the second chamber accommodates a sound absorbing material.
(6): the voice coil framework is fixedly connected with the paper disc, the flicking wave is fixedly sleeved on the paper disc of the loudspeaker side by side, the peripheral edge of the flicking wave is fixed on the inner wall of the loudspeaker shell, and the voice coil, the voice coil framework, the flicking wave and the paper disc are coaxially arranged.
2. The process for producing a speaker for a paper tray according to claim 1, wherein the method for producing pulp is: and (3) shredding the pulp board, putting the pulp board into a pulping machine, adding water, pulping, and diluting the obtained pulp with water to obtain the pulp.
3. The process for preparing a speaker for paper tray according to claim 2, wherein the emulsified paraffin is added to the beater during beating, and the mass of the emulsified paraffin is 15% -20% of the mass of the absolute dry slurry.
4. The process for preparing the paper disc loudspeaker according to claim 1, wherein the paper disc is prepared by taking out paper pulp, hot-pressing, forming and punching to obtain a pretreated paper disc, and drying at 110-120 ℃ for 20-40 min to obtain the paper disc.
5. The process for preparing a speaker for a paper tray according to claim 1, wherein the first chamber is located above the second chamber.
6. The process for producing a speaker for a paper tray according to claim 1, wherein the paper tray is tapered, and a mounting hole is reserved at a tip portion of the paper tray, and the electroacoustic conversion device is accommodated at the mounting hole.
7. The process for manufacturing a speaker for a paper tray according to claim 1, wherein the elastic wave has a plurality of concentric rings having gradually increasing diameters, and the concentric rings are sequentially connected to each other.
8. The process for producing a paper tray speaker according to claim 1, wherein the sound absorbing material is sound absorbing particles, and the sound absorbing particles are tightly packed in the second cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310202450.8A CN116320956A (en) | 2023-03-06 | 2023-03-06 | Preparation process of paper disc loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310202450.8A CN116320956A (en) | 2023-03-06 | 2023-03-06 | Preparation process of paper disc loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116320956A true CN116320956A (en) | 2023-06-23 |
Family
ID=86799033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310202450.8A Pending CN116320956A (en) | 2023-03-06 | 2023-03-06 | Preparation process of paper disc loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116320956A (en) |
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2023
- 2023-03-06 CN CN202310202450.8A patent/CN116320956A/en active Pending
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