Preparation method of acupuncture 3D sound-absorbing body
An acupuncture and 3D technology is applied in the field of the preparation of acupuncture 3D sound-absorbing bodies, which can solve the problems of incapable of environmental decoration, cleaning, complicated production process of sound-absorbing bodies, poor low-frequency sound-absorbing effect, etc., and achieves increased appearance effect and sound-absorbing performance. Improved, easy-to-install effect
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Embodiment 1
[0032] A method for preparing an acupuncture 3D sound-absorbing body, comprising the steps of:
[0033] (a) Weighing the first polyester staple fiber and the second polyester staple fiber at a mass ratio of 1:1;
[0034] (b) The weighed fiber enters the cotton rolling equipment for opening and mixing;
[0035] (c) The fiber processed by the rolling equipment is sent into the cotton mixing machine through the compression device, and the fiber is further mixed evenly;
[0036] (d) The fiber treated in step (c) enters the carding equipment, and forms a fiber web after opening;
[0037] (e) The fiber web enters the stacking equipment for stacking;
[0038] (f) After the piled fiber web is needled for the first time, a fiber cotton with a thickness of 25 mm is formed;
[0039] The needling density of the first needling is 1.6 needles / cm 2 ;
[0040] (g) Place a density of 200kg / m on the fiber cotton 3 cotton felt, and then perform the second needle punching to form needle pun...
Embodiment 2
[0049] A method for preparing an acupuncture 3D sound-absorbing body, comprising the steps of:
[0050] (a) weighing the first polyester staple fiber and the polyamide fiber at a mass ratio of 1:2;
[0051] (b) The weighed fiber enters the cotton rolling equipment for opening and mixing;
[0052] (c) The fiber processed by the rolling equipment is sent into the cotton mixing machine through the compression device, and the fiber is further mixed evenly;
[0053] (d) The fiber treated in step (c) enters the carding equipment, and forms a fiber web after opening;
[0054] (e) The fiber web enters the stacking equipment for stacking;
[0055] (f) After the piled fiber web is needled for the first time, a fiber cotton with a thickness of 30mm is formed;
[0056] The needling density of the first needling is 1.4 needles / cm 2 ;
[0057] (g) Place a density of 300kg / m on the fiber cotton 3 cotton felt, and then perform the second needle punching to form needle punched cotton fel...
Embodiment 3
[0066] A method for preparing an acupuncture 3D sound-absorbing body, comprising the steps of:
[0067] (a) weighing the first polyester staple fiber and the second polyester staple fiber at a mass ratio of 1:3;
[0068] (b) The weighed fiber enters the cotton rolling equipment for opening and mixing;
[0069] (c) The fiber processed by the rolling equipment is sent into the cotton mixing machine through the compression device, and the fiber is further mixed evenly;
[0070] (d) The fiber treated in step (c) enters the carding equipment, and forms a fiber web after opening;
[0071] (e) The fiber web enters the stacking equipment for stacking;
[0072] (f) The stacked fiber web is needled for the first time to form a fiber cotton with a thickness of 20mm;
[0073] The needling density of the first needling is 1.3 needles / cm 2 ;
[0074] (g) Place a density of 240kg / m on the fiber cotton 3 cotton felt, and then perform the second needle punching to form needle punched cot...
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