阅读说明：本技术 一种汽车地毯下隔音垫生产方法 (Sound insulating pad production method under a kind of car carpeting ) 是由 金雨晗 于 2019-09-06 设计创作，主要内容包括：本发明提供了一种汽车地毯下隔音垫生产方法,其包括以下步骤：1)裁切出合适尺寸的热塑性棉毡和EPDM,2)将EPDM置于烘箱进行烘温加热；3)将烘温后的EPDM放置在吸附模上,空气泵抽气,使EPDM吸附于模具上成型,吸附结束后得到EPDM预埋件；4)将成型好的EPDM预埋在成型模的下模,将热塑性棉毡喷胶后覆盖在EPDM上；5)成型模上模接加热管加热,下模接冷却水降温,冲切成型。上述汽车地毯下隔音垫生产方法工艺简单,易于操作,加工成本降低,工艺稳定,确保了操作的安全性和准确度；成型采用上模加热,下模冷却的方法,提高了产品外观面EPDM的平整度和美观性,同时降低了能量损耗,节约了制造成本。(The present invention provides sound insulating pad production methods under a kind of car carpeting comprising following steps: 1) EPDM cut out the thermoplasticity blanket and EPDM of suitable dimension, 2) being placed in baking oven and carries out drying warm heating；3) EPDM after baking temperature is placed on absorption mould, air pump pumping is adsorbed in EPDM on mold and forms, EPDM built-in fitting is obtained after absorption；4) EPDM of forming is embedded in the lower die of shaping mould, will be covered on EPDM after thermoplasticity blanket glue spraying；5) moulding upper mould connects heating tube heating, and lower die connects cooling water temperature, punching molding.Sound insulating pad production method simple process, easily operated under above-mentioned car carpeting, and processing cost reduces, process stabilizing, it is ensured that the safety and accuracy of operation；Molding is heated using upper mold, and the cooling method of lower die improves the flatness and aesthetics of Surface Appearance EPDM, while reducing energy loss, saved manufacturing cost.)

1. sound insulating pad production method under a kind of car carpeting, which is characterized in that itself the following steps are included:

1) the thermoplasticity blanket and EPDM piece of suitable dimension are cut out；

2) EPDM piece baking oven is placed in carry out drying warm heating；

3) the EPDM piece after baking temperature is placed on absorption mould, air pump pumping is adsorbed in EPDM piece on mold and forms, adsorbs After obtain EPDM piece built-in fitting；

4) the EPDM piece of forming is embedded in the lower die of shaping mould, EPDM on piece will be covered on after thermoplasticity blanket glue spraying, is sprayed Glue surface is towards EPDM piece；

5) moulding upper mould connects heating tube heating, and lower die connects cooling water temperature, punching molding.

2. sound insulating pad production method under car carpeting as described in claim 1, which is characterized in that upper baking oven in the step 2) Temperature be 290 DEG C~310 DEG C, lower baking oven does not heat, and drying the warm time is 55s~65s.

3. sound insulating pad production method under car carpeting as described in claim 1, which is characterized in that the step 3) air pump 0.04~0.06MPa of atmospheric pressure, adsorption time be 35s~45s.

4. sound insulating pad production method under car carpeting as described in claim 1, which is characterized in that upper mold temperature in the step 5) 165 DEG C~175 DEG C of degree, 28 DEG C~32 DEG C of lower die temperature, briquetting pressure 17MPa~19MPa, dwell time 115s~125s.

5. sound insulating pad production method under car carpeting as described in claim 1, which is characterized in that be punched into the step 5) Component is taken out after type, removes hole location clout, obtains final products.

Technical field

The invention belongs to sound insulating pad production methods under automobile interior decoration part processing technology more particularly to a kind of car carpeting.

Background technique

Sound insulating pad is that the NV performance components of body design are determined according to various different automobile types under car carpeting, is mounted on central vehicle Below carpet, the function of sound-absorbing, sound insulation can be played, interior noise is reduced, promotes the comfort level of occupant, is that influence is whole The important component of vehicle NV performance.

Currently, sound insulating pad generallys use steam molding technique under existing car carpeting, it is long that there are molding times, is processed into The disadvantage of this height and Forming Quality difference.

Summary of the invention

The purpose of the present invention is to provide sound insulating pad production methods under a kind of car carpeting, to solve automobile in the prior art Sound insulating pad there are molding times long, the problem of processing cost height and Forming Quality difference under carpet.

To achieve this purpose, the present invention adopts the following technical scheme:

A kind of sound insulating pad production method under car carpeting comprising following steps:

1) cut out the thermoplasticity blanket and EPDM piece of suitable dimension, EPDM Chinese name: ethylene propylene diene rubber, English are complete Claim: Ethylene-Propylene-Diene Monomer；

2) EPDM piece baking oven is placed in carry out drying warm heating；

3) the EPDM piece after baking temperature being placed on absorption mould, air pump pumping is adsorbed in EPDM piece on mold and forms, EPDM piece built-in fitting is obtained after absorption；

4) the EPDM piece of forming is embedded in the lower die of shaping mould, EPDM piece will be covered on after thermoplasticity blanket glue spraying On, glue spraying is facing towards EPDM piece；

5) moulding upper mould connects heating tube heating, and lower die connects cooling water temperature, punching molding.

Particularly, the temperature of upper baking oven is 290 DEG C~310 DEG C in the step 2), and lower baking oven does not heat, and dries the warm time and is 55s~65s.

Particularly, 0.04~0.06MPa of atmospheric pressure of the step 3) air pump, adsorption time are 35s~45s.

Particularly, 165 DEG C~175 DEG C of upper mold temperature in the step 5), 28 DEG C~32 DEG C of lower die temperature, briquetting pressure 17MPa~19MPa, dwell time 115s~125s.

Particularly, component is taken out after punching molding in the step 5), removes hole location clout, obtains final products.

Beneficial effects of the present invention are sound insulating pad production method technique letter under the car carpeting compared with prior art It is single, it is easily operated, reduce the process time of original steam moulding process；It selects this production technology to reduce processing cost, reduces Molding difficulty；In material processing, using punching block hot pressing punching molding, process stabilizing, it is ensured that the safety of operation And accuracy；Molding is heated using upper mold, and the cooling method of lower die improves the flatness and beauty of Surface Appearance EPDM piece Property, while energy loss is reduced, save manufacturing cost.

Specific embodiment

Of the invention for ease of understanding, it is as follows that the present invention enumerates embodiment.Those skilled in the art are it will be clearly understood that the implementation Example is only to aid in the understanding present invention, should not be regarded as a specific limitation of the invention.