Unlock instant, AI-driven research and patent intelligence for your innovation.

Production process of loudspeaker diaphragm

A production process and technology for loudspeakers, applied in the field of loudspeakers, can solve the problems of high cost, low production efficiency, redundant steps, etc., and achieve the effects of convenient processing, excellent sealing and lowering production costs.

Pending Publication Date: 2022-05-27
魏灵炯
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a production process of a loudspeaker diaphragm. The prepared loudspeaker diaphragm has the advantages of antistatic, abrasion resistance, high temperature resistance, cold resistance and lightness, and solves the problem of the production efficiency of some current processes. Low, cumbersome steps and high cost

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1: A production process of a loudspeaker diaphragm, a production process of a loudspeaker diaphragm, including the following steps: Step 1, preparation: making a diaphragm mold used by a hot press molding machine, a cavity formed by the upper and lower molds It is in the shape of a double-layer runway that radiates outward; prepare the corresponding proportions of base layer raw materials, additives, modifiers and protective coating raw materials; the base layer raw materials include the following raw materials: natural rubber 37%, silicone rubber 28% , 15% of carbon fiber, 15% of carbon black and 5% of coumarone; step 2, rubber mixing: put the raw materials of the base layer in the corresponding proportion into the rubber mixing machine for heating and mixing, the heating temperature is 92 ° C, and the stirring speed is 70 r / min, the time is 15min, and the base layer colloid of the diaphragm is obtained after rubber mixing; Step 3, mixing: the base layer col...

Embodiment 2

[0030] Embodiment 2: A production process of a loudspeaker diaphragm, a production process of a loudspeaker diaphragm, comprising the following steps: Step 1, preparation: making a diaphragm mold used by a hot-pressing molding machine, a cavity formed by the upper and lower molds It is in the shape of a double-layer runway that radiates outward; prepare the corresponding proportions of base layer raw materials, additives, modifiers and protective coating raw materials; the base layer raw materials include the following raw materials: 40% natural rubber, 30% silicone rubber , 12.5% ​​of carbon fiber, 12.5% ​​of carbon black and 5% of coumarone; step 2, rubber mixing: put the base layer raw materials of the corresponding proportion into the rubber mixing machine for heating and mixing, the heating temperature is 102 ° C, and the stirring speed is 80 r / min, the time is 20min, and the base layer colloid of the diaphragm is obtained after rubber mixing; Step 3, mixing: the base layer...

Embodiment 3

[0031] Embodiment 3: A production process of a loudspeaker diaphragm, a production process of a loudspeaker diaphragm, comprising the following steps: Step 1, preparation: making a diaphragm mold used by a hot press molding machine, a cavity formed by the upper and lower molds It is the shape of a double-layer runway that radiates outward; prepare the corresponding proportions of base layer raw materials, additives, modifiers and protective coating raw materials; the base layer raw materials include the following raw materials: 40% natural rubber, 25% silicone rubber , 15% of carbon fiber, 15% of carbon black and 5% of coumarone; step 2, rubber mixing: put the base layer raw materials of the corresponding proportion into the rubber mixing machine for heating and mixing, the heating temperature is 112 ° C, and the stirring speed is 90 r / min, the time is 25min, and the base layer colloid of the diaphragm is obtained after rubber mixing; Step 3, mixing: the base layer colloid is ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
widthaaaaaaaaaa
lengthaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a production process of a loudspeaker diaphragm, and relates to the field of loudspeakers, and the process mainly comprises nine steps of preparation, rubber mixing, mixing, rolling, primary slitting, hot press molding, secondary slitting, vulcanization cooling and spray molding. According to the production process of the loudspeaker diaphragm, integral forming is achieved, the operation of opening the surface of the diaphragm and pasting an iron sheet is not needed, the excellent sound production effect of the diaphragm is kept, meanwhile, the production cost is reduced, meanwhile, cooling treatment is carried out while cooling treatment is carried out on the slit diaphragm base layer, the two steps are combined into one, and the production efficiency is improved. The process steps are simplified, the production and processing time is shortened, the production and processing efficiency of the process is further improved, the bottom of the vibrating diaphragm is coated with a performance additive in the hot press molding step, micropores are formed in the bottom of the vibrating diaphragm, the contact area with glue is increased, the bonding force is improved, and the possibility that the vibrating diaphragm is separated from the loudspeaker body is reduced. And the sealing performance and the waterproof performance are further improved.

Description

technical field [0001] The invention relates to the technical field of loudspeakers, in particular to a production process of a loudspeaker diaphragm. Background technique [0002] The speaker is a transducer device that converts electrical signals into sound signals. The performance of the speaker has a great influence on the sound quality. The speaker is the weakest device in audio equipment, and for sound effects, it is also the One of the most important components, there are many types of speakers, and the price varies greatly. Audio power produces sound through electromagnetic, piezoelectric or electrostatic effects, causing its paper cone or diaphragm to vibrate and resonate with the surrounding air. [0003] Loudspeaker diaphragms can be divided into many types according to their materials, the most common of which is rubber diaphragms. At present, most of the rubber diaphragms on the market use the form of opening in the middle of the rubber sheet and pasting the iro...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B29D7/01B29C69/02B29B7/28B29B7/72B29C51/08B29C35/18C08L7/00C08L83/04C08K13/04C08K7/06C08K3/04C09D163/00C09D7/61B29L7/00B29L31/34
CPCB29D7/01B29C69/001B29C69/02B29B7/28B29B7/72B29C51/08B29C35/18C08L7/00C09D163/00C09D7/61C08L2205/03B29L2007/00B29L2031/3418C08L83/04C08K13/04C08K7/06C08K3/04C08K3/00
Inventor 魏灵炯
Owner 魏灵炯