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

Method for manufacturing sound insulating pad of automobile carriage

A technology for sound insulation pads and compartments, which is applied in the field of preparation of sound insulation pads for automobile compartments, can solve the problems of high cost of production methods, poor three-dimensional effect, poor sound insulation effect, etc. reduced effect

Active Publication Date: 2016-08-03
SAIL NON WOVEN MACHINERY CO LTD
View PDF5 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of production method has high cost, long manufacturing cycle, poor sound insulation effect and poor three-dimensional effect

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for manufacturing sound insulating pad of automobile carriage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A preparation method for an automobile compartment sound insulation pad, comprising the steps of:

[0023] (1) Mixing of raw materials: use waste cotton fiber, 3D curved fiber, low melting point fiber and sponge debris as raw materials, and directly mix them with a mixer according to the required ratio;

[0024] (2) Injection into the mold: the mixed raw materials in step (1) enter the storage box 2 downward through the condenser 1 of the vertical doffing device, and use a group of photoelectric detectors to monitor the amount of cotton stored in the storage box, and then pass A group of feeding rollers 3 at the lower part of the storage box feed the cotton quantitatively downwards, that is, nodding, and the nodding is stirred by the agitator and injected into the lower mold 4, and the upper mold is fixed at the forming position;

[0025] (3) Clamping molding: move the lower mold 4 injected with the mixed raw materials in step (2) to the molding position, and integrate ...

Embodiment 2

[0027] The difference from Example 1 is that the lower end of the mold is connected to the hot air duct, and the hot air is used as the heat source to heat from the lower part (down blowing and upward suction) to shape the mold.

Embodiment 3

[0029] The difference from Example 1 is that both the upper end and the lower end of the mold are connected to the hot air duct, and the hot air is used as the heat source, and the upper part and the lower part are heated alternately, and the number of alternations is more than 2 times.

[0030] The above preparation method directly injects the fiber into the mold for molding, which saves the steps of net laying, acupuncture and ironing in the production of fiber felt, not only greatly shortens the process route, but also effectively reduces the direct cost of the product. The obtained product has good elasticity, good sound insulation and vibration reduction effects, and the three-dimensional effect is obviously full. In addition, since a part of recycled waste cotton fiber is used in the production of the product, on the one hand, the production cost of the product is reduced, and on the other hand, the recycling of this part of the cotton product is realized, reflecting the ...

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

No PUM Login to View More

Abstract

The invention discloses a method for manufacturing a sound insulating pad of an automobile carriage. The method includes the steps of (1) mixing raw materials, (2) injecting the mixed raw materials into a mold, and (3) conducting mold assembly for molding. According to the method for manufacturing the sound insulating pad of the automobile carriage, fibrous raw materials are directly injected to the mold for molding, the process route is greatly shortened, and direct cost of the product is greatly reduced; moreover, the produced product is good in elasticity, sound insulation effect and damping effect, and obviously plumb in stereo impression. Furthermore, by the adoption of one part of recovered waste cotton fibers, the production cost of the product is reduced on one hand; on the other hand, the part of cotton product can be recycled, and therefore energy saving and environmental protection are achieved.

Description

technical field [0001] The invention relates to the field of auto parts, in particular to a preparation method of an automobile compartment sound insulation pad. Background technique [0002] As an important means of transportation, automobiles will transmit various noises to the compartment during their operation, causing noise pollution to drivers, passengers and passengers. Therefore, sound insulation mats are laid in the car compartment for sound insulation. [0003] The traditional production method of the car compartment sound insulation pad is to make the fiber felt through the processes of cotton blending, opening, laying, acupuncture, hot ironing, etc., and then cut the felt into molds to form. Such a production method has high cost, long manufacturing cycle, poor sound insulation effect and poor three-dimensional effect. Contents of the invention [0004] The main technical problem to be solved by the present invention is to provide a method for preparing an au...

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): B29C70/46B29C70/54B29L31/58
CPCB29C70/46B29C70/54B29L2031/58
Inventor 徐伟平
Owner SAIL NON WOVEN MACHINERY CO LTD