Manufacture method of drum paper of loudspeaker

A production method and speaker technology, applied in pulp beating method, paper, papermaking and other directions, can solve the problems of high air leakage rate, poor sounding effect of speakers, and high distortion rate, achieve good sealing, improve clarity and thickness , the effect of reducing the distortion rate

Active Publication Date: 2017-07-07
广西玉林市禹力音响配件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing drum paper production method, there are disadvantages such as high air leakage rate, high distortion rate and poor sounding effect of the horn.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A method for making loudspeaker drum paper, comprising the following steps:

[0033] (1) Beating: Add water accounting for 65% of the volume of the beater into the beater pool; put each raw material into the pulp pool of different beaters for freeing; after freeing for 15 minutes, place a light knife for 25 minutes and then a heavy knife for 2 hours ; After 2 hours of knocking, measure the degree of pulp knocking. After reaching the required degree of knocking, lift the knife. Kraft softwood pulp (UKP), sisal, cotton pulp, kapok, bullet-proof fiber, wool and glass fiber, wherein the knocking degree of natural kraft softwood pulp is 20 degrees, and the knocking degree of the sisal is 30 degrees, The degree of knocking of the cotton pulp is 25 degrees;

[0034] (2) Batching: mix different types of slurry according to a certain weight ratio to obtain a mixed slurry, add dyes, salt, acrylic latex (ODG) waterproofing agent and trimethyl phosphate ( P615) additives to harde...

Embodiment 2

[0047] A method for making loudspeaker drum paper, comprising the following steps:

[0048] (1) Beating: Add water accounting for 75% of the volume of the beater into the beater pool; put each raw material into the pulp pool of different beaters for freeing; after freeing for 25 minutes, place a light knife for 35 minutes and then a heavy knife for 2.5 hours ;After 2.5 hours of knocking, measure the pulp knocking degree, and lift the knife after reaching the required knocking degree. If not, extend the time until the required knocking degree is reached, and finally obtain different types of pulp; the above raw materials include natural color kraft coniferous wood pulp (UKP), sisal, cotton pulp, kapok, bulletproof fiber, wool and glass fiber, wherein the beating degree of natural kraft softwood pulp is 20 degrees, the beating degree of the sisal is 30 degrees, and the beating degree of the cotton pulp is The percussion degree is 25 degrees;

[0049] (2) Batching: mix different...

Embodiment 3

[0062] A method for making loudspeaker drum paper, comprising the following steps:

[0063] (1) Beating: Add water accounting for 70% of the volume of the beater into the beater pool; put each raw material into the pulp pool of different beaters for freeing; after freeing for 20 minutes, place a light knife for 30 minutes and then a heavy knife for 2 hours ; After 2 hours of knocking, measure the pulp knocking degree, and lift the knife after reaching the required knocking degree. If it is not reached, extend the time until the required knocking degree is reached, and finally obtain different types of pulp; the above raw materials include uncolored kraft softwood pulp (UKP), sisal, cotton pulp, kapok, bulletproof fiber, wool and glass fiber, wherein the beating degree of natural kraft softwood pulp is 20 degrees, the beating degree of the sisal is 30 degrees, and the beating degree of the cotton pulp is The percussion degree is 25 degrees;

[0064] (2) Batching: mix different...

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Abstract

The invention discloses a manufacture method of drum paper of a loudspeaker, pertaining to the technical field of electroacoustic products. The method comprises the following steps: 1) pulping; 2) batching; 3) papermaking; 4) neck strengthening; 5) spraying varnish; 6) spraying glue or throwing glue; 7) cutting material; 8) forming; 9) applying edge glue; 10) attaching and reinforcing. The manufacture method of drum paper of the loudspeaker has the following beneficial effects: physical performance such as filling power, damping performance, light weightness and hardness and softness of the drum paper can be elevated so that the loudspeaker utilizing the drum paper can obtain good sound effect; sounds become softer and gentle so that comfortable and natural sounds that do not arouse fatigue can be obtained; meanwhile, pulp used by the drum paper has better clarity of the low-frequency and middle-frequency sound quality; toughness is improved; and the distortion rate is lower.

Description

technical field [0001] The invention relates to the technical field of electroacoustic products, in particular to a method for making loudspeaker drum paper. Background technique [0002] Drum paper is the main sound-generating part of the horn. The sound quality of the horn has a lot to do with the drum paper. Generally, the drum paper is mainly composed of the carcass and the side. The common drum paper is mostly composite drum paper, that is, the carcass and the side are made of different materials. , compounded and glued into a complete drum paper. The common material of the carcass is paper, and there are also PP materials, aluminum bodies, copper bodies, etc. Common materials for edges include foam, cloth, rubber, ESMA, TPU, etc. [0003] At present, the material of drum paper is mainly pulp plus other materials. In recent years, a variety of materials with different characteristics have entered, such as polypropylene, carbon fiber, metal titanium, etc., and even dia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21D1/02D21H15/12D21H17/67D21H21/16D21H21/14D21H23/70H04R31/00
CPCD21D1/02D21H15/12D21H17/67D21H21/14D21H21/16D21H23/70H04R31/00
Inventor 覃第起杨凯龙凌少林
Owner 广西玉林市禹力音响配件有限公司
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