KR101411988B1 - Manufacturing process and equipment of recycling chip used autocar's internal sheet waste - Google Patents

Abstract

The present invention relates to a method for manufacturing recycled chips using car seat wastes. The method comprises: a step of melting car seat wastes including a fabric layer made of crushed polyester and a bottom layer made of polypropylene (PP) or polyethylene terephthalate (PET); a step of extruding the molten material in a rod form through an extruder; a step of cutting the rod into a lump; a step of cooling the lump; and a crushing step of producing chips by crushing the cooled extruded product.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an apparatus and a method for manufacturing recycled chips,

The present invention relates to a method of manufacturing a recycled chip using automotive interior seat wastes, which can improve the product quality by manufacturing a rod-shaped extrudate, reduce the number of manufacturing processes, And a manufacturing method and apparatus for manufacturing a recycling chip that can save time.

Since the number of automobiles produced in Korea is more than 3.5 million per year and the shape of the built-in sheet discharged from the manufacturing process is different for each vehicle type, the scraper discharged at the time of press cutting exceeds 1,000 tons per month, The bristle layer and the bottom layer are different from each other in physical properties, so that they can not be recycled without being separated. When the physical properties are different from each other, the separation itself is expensive and very difficult. Therefore, the separation and incineration are carried out without separation, which causes pollution of water pollution and environmental pollution.

Korean Patent Application No. 2009-0096733 ("Method for manufacturing a recycled chip using automobile interior seat waste ", hereinafter referred to as Prior Art 1) is a patent filed by the present applicant. In the recycled chip of the prior art document 1, the recycled raw material was collected and pulverized, the recycled raw material was melted and extruded, and the raw material compressed and cooled was crushed to obtain a recycled chip. In the prior art 1, the molten regenerated raw material is formed into a sheet form, but when it is manufactured into a sheet form, there is a problem of not only increasing the number of manufacturing processes but also the quality of the product. Therefore, in order to solve these problems, it is necessary to find a manufacturing method for producing high quality products by recycling the automobile interior seat waste.

Patent: Korean Registered Patent Application No. 2009-0096733 ("Manufacturing Method of Recycled Chip Using Automobile Interior Seat Waste," Published on 2010.05.10)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a method of reducing environmental pollution and waste of resources by manufacturing a recycled chip without discarding automotive interior seat wastes have.

It is another object of the present invention to provide a recycled chip which can improve the quality of a product and reduce the number of process steps by changing the extrusion process, And a method of manufacturing the same.

In addition, it is an object of the present invention to provide a manufacturing method capable of saving energy and time as the number of processes for producing recycled chips is reduced.

The present invention relates to a method for producing a molded article comprising: a melting step (SlOO) for melting an automotive interior sheet waste comprising a brushed layer of ground polyester and a bottom layer of polypropylene or polyethylene terephthalate; An extrusion step (S200) in which the melt is extruded in the form of a rod through an extruder; A cutting step (S300) of cutting the rod shape of the extrusion step in a lump; Cooling the cut lump (S400); And crushing the cooled extrudate (S500); .

In addition, the automotive interior seat waste may include one or more fillers selected from wood powder, talc, calcium carbonate, carbon black, stabilizer, master batch, antibacterial agent and deodorizer.

In addition, the melting step (S100) further comprises 0.01 to 3 parts by weight of a foaming agent based on 100 parts by weight of the automotive interior wastepaper.

Further, in the melting step (S100) it comprises melting the above automobile interior sheet waste ground with a wide range of 400 ~ 900mm ^2.

)는 180℃ 내지 250℃인 것을 포함한다.Further, in the melting step (S100), the melting temperature (

) ≪ / RTI >

Further, the extruder in the extrusion step (S200) includes extruding through a plurality of outlets.

In the grinding step (S500), the recycled chip may be pulverized in a range of 4 to 100 mm ² .

In addition, the recycling chip (s) pulverized in the pulverizing step (S500) further includes a screening step of dividing the chip by particle size through a vibration filter network.

A first crusher (10) for crushing motor vehicle interior seat waste; An extruder (20) for extruding the pulverized material pulverized by the first pulverizer to produce an extrudate; A die 30 located at an end of the extruder for discharging the extrudate; A cutter (40) for cutting the extrudate discharged to the die (30); A cooling bath (50) located below the die (30) and cooling the cut lump by the cutter (40); A conveyor 60 for conveying the cooled lump; A second crusher (70) for crushing the cooled lumps transferred through the conveyor (60); And a storage tank (80) for storing the pulverized material pulverized from the second pulverization.

The recycled chip produced by using the method for manufacturing the automobile interior seat sheet waste according to the present invention uses the waste that has been pulverized and crushed to a size equal to or larger than a predetermined size so that materials having various physical properties, So that a high-quality product can be obtained.

In addition, when a recycled chip is manufactured using the automotive interior seat waste by the method of the present invention, the number of processes is reduced in comparison with existing processes, so that the operation is easy and the time is saved have.

In addition, as the number of processes is reduced, the labor cost and energy saving effect can be obtained.

1 is a schematic diagram of a recycling chip manufacturing apparatus according to the present invention.
Fig. 2 is a flowchart showing the manufacturing method of the present invention

Hereinafter, an apparatus and method for manufacturing a recycled chip according to the present invention will be described in detail with reference to the drawings.

FIG. 1 is a schematic view showing an apparatus for manufacturing a recycling chip according to the present invention. The apparatus for manufacturing the recycle chip of the present invention mainly comprises a first crusher 10, an extruder 20, a die 30, A cooling tank 510, a conveyor 60, a second crusher 70, and a storage tank 80. In this case, Hereinafter, a manufacturing apparatus for manufacturing a recycled chip using the automotive interior seat waste will be described with reference to FIG.

The first crusher (10) is a device for crushing the automobile interior seat sheet waste to produce a crushed product. More specifically, the automobile interior seat sheet waste is generated in the processing step of defective articles produced in an automobile interior sheet production process, Or a mixture thereof is shredded horizontally and vertically in the range of 20 to 30 mm (400 to 900 mm ² ).

The extruder 20 is a step of melting and extruding the pulverized material through the first pulverizer 10. More specifically, in the extruder 20, when the pulverized material pulverized from the extruder 10 is injected through the injection port of the extruder 20, the pulverized material is melted in the extruder to produce an extrudate .

The die 30 is an extruder die and the die 30 is located at the outlet of the extruder 20 so that the molten extrudate in the extruder 20 is discharged in the form of a rod .

The cutter 40 is provided for cutting a rod-shaped extrudate discharged into the die 30 into a lump. The die 30 is positioned at the end of the die 30, Is cut into a lump having a predetermined size.

The cooling bath 50 is a step for cooling the cut lump. The cooling method can be an air cooling type and a water cooling type cooling, and can be variously changed according to the user.

The conveyor 60 is a means for conveying the cooled lump, and the lump cooled in the cooling tank 50 is conveyed to the next process by the conveyor 60. The conveyor 60 may be provided between all manufacturing apparatuses, thereby greatly increasing the efficiency of the manufacturing process.

The second crusher (70) crushes the cooled lump transferred through the conveyor (60), and the cut lump is passed through the second crusher in a range of ² mm to 10 mm (width 4 to 100 mm ² ) And crushed. The range of the crushing size of the mass to be crushed may be varied according to the user or the process, but it is most efficient to crush the crushed mass in the range of 2 mm to 10 mm (width 4 to 100 mm ² ). And the pulverized material pulverized through the second pulverizer 70 is conveyed through the screw conveyor.

The storage tank 80 stores the pulverized pulverized material through the second pulverizer 70. The pulverized material pulverized through the second pulverizer 70 is transferred to the storage tank 80 through the screw conveyor And stored.

2 is a flowchart of a method of manufacturing a recycled chip using the automotive interior seat waste according to the present invention. The method of manufacturing a recycled chip according to the present invention comprises the steps of melting (S100), extruding (S200), cutting (S300), cooling (S400) and pulverizing (S500) . Hereinafter, the manufacturing method will be described in detail with reference to the drawings.

 The automotive interior seat waste comprises a layer of polypropylene (PP) in the bottom layer and a polyester of polyethylene terephthalate (PET) and a brassy layer. The automobile interior seat sheet waste is a scrapper generated in the process of manufacturing an automobile interior sheet, a scraper generated in the process of manufacturing an automobile interior sheet, or a mixture thereof. Thus, the automobile interior seat sheet can be recycled and the raw material can be saved. In addition, the automotive interior seat wastes of the present invention include one or more fillers selected from wood powder, talc, calcium carbonate, carbon black, stabilizers, masterbatches, antimicrobial agents, and odor removal to increase the strength of the recycled chip .

Further, before the melting step, a crushing process may be added to uniformly mix materials having various physical properties, thereby improving the quality of the product during the production of the product.

)에서 상기 자동차 내장시트 폐기물의 분쇄물을 용융하여 용융물을 생성하는 단계이다. 상기 용융 단계에서의 상기 용융온도(

)는

(

은 바닥층 융점,

는 기모층 융점 및

는 용융온도)이어야 한다. 만약, 용융온도가 바닥층의 상기 폴리프로필렌(PP) 또는 상기 폴리에틸렌 테레프탈레이트(PET)의 융점보다 융점보다 낮을 경우 바닥층을 이루는 다양한 수지들이 분포도가 균일한 액체상의 혼합 수지물로 제조할 수 없으며, 상기 용융온도가 기모층의 폴리에스테르의 융점보다 높을 경우 상기 폴리에스테르 섬유를 용융되어 수지속에 분산시킬 수 없게 된다. 따라서 상기 용융온도가 기모층의 폴리에스테르의 융점보다 높을 경우 폴리에스테르의 결착력을 내포하고 있는 상도한 강한 칩을 제조하기 어렵게 된다. 따라서 상기 용융온도(

)는 180℃ 내지 250℃내에서 공정이 이루어져야 하지만, 일 실시예로 220℃에서 용융하는 것이 가장 바람직하다. 또한, 상기 용융단계(S100)에서는 상기 자동차 내장시트 폐기물 100중량을 기준으로, 발포제 0.01 내지 3중량부를 더 포함하여 제조할 수 있다. 이는 기존의 시트(sheet) 형태의 압출물에서 로드(rod)형태의 압출물로 형태를 변형함에 따라, 제품의 품질이 향상되고, 공정수도 감축되어 에너지 및 인건비가 절약되지만, 분쇄공정에 있어서 시트(sheet)형태의 압출물이 로드(rod)형태의 압출물보다 분쇄가 용이하기 때문에 상기 용융단계(S100)에 발포제를 첨가하여 로드(rod)형태 압출물의 분쇄가 용이하도록 한다. 상기 발포제를 첨가하여 제조된 상기 자동차 내장시트는 승차감을 증대시키는 효과가 있으며, 상기 용융단계(S100)에서 발포제의 기포로 인해 용융물의 유동이 용이해짐에 따라 용융물이 균일하게 혼합되게 되며, 분쇄단계에서도, 기포층으로 인해 분쇄가 용이해진다. 하지만, 상기 발포제를 허용기준이상으로 첨가하면 제품의 강도가 약해지며, 균일하게 혼합된 제품을 생산하기 어렵다. 발포제의 예로는, 열에 의한 발포제로 아조계 등이 있으며 기타 물리적 발포제로서 프로판가스 등을 부가하는 방법 등이 있지만 이에 한정되는 것은 아니다.The melting step (SlOO)

) Is a step of melting the pulverized product of the automotive interior seat waste to produce a melt. The melting temperature (< RTI ID = 0.0 >

)

(

Is the bottom layer melting point,

The brass layer melting point and

Is the melting temperature). If the melting temperature is lower than the melting point of the polypropylene (PP) or the polyethylene terephthalate (PET) in the bottom layer, various resin constituting the bottom layer can not be prepared as a mixed resin of a liquid phase having a uniform distribution, When the melting temperature is higher than the melting point of the polyester in the brassy layer, the polyester fiber can not be melted and dispersed in the resin. Therefore, when the melting temperature is higher than the melting point of the polyester of the bristle layer, it is difficult to produce an extremely strong chip containing the binding force of the polyester. Therefore,

) Should be carried out in the range of 180 ° C to 250 ° C, but it is most preferable to melt at 220 ° C in one embodiment. In addition, the melting step (S100) may further include 0.01 to 3 parts by weight of a blowing agent based on 100 parts by weight of the automotive interior wastes waste. This is because, as the form is deformed from the existing sheet-like extrudate to the rod-shaped extrudate, the quality of the product is improved and the number of processes is reduced to save energy and labor costs. However, Since the sheet-like extrudate is easier to crush than the rod-shaped extrudate, the foaming agent is added to the melting step (S100) to facilitate crushing of the rod-shaped extrudate. The automobile interior sheet produced by adding the foaming agent has an effect of increasing the ride quality. In the melting step (S100), since the flow of the melt is facilitated by the bubbles of the foaming agent, the melts are uniformly mixed, The crushing is facilitated by the bubble layer. However, when the foaming agent is added in an amount exceeding the allowable standard, the strength of the product is weakened, and it is difficult to produce a uniformly mixed product. Examples of the foaming agent include an azo type foaming agent by heat and a method of adding propane gas or the like as a physical foaming agent, but the present invention is not limited thereto.

In addition, in the melting step (S100), it is most effective to melt the automobile interior seat wastes using the automobile interior seat wastes that have been crushed to a width of from 20 to 30 mm (400 to 900 mm ² ) It is only an example. When the automobile interior seat sheet waste is pulverized in the range of 20 to 30 mm (400 to 900 mm ² ), the automobile interior seat sheet waste is pulverized, and the materials having different physical properties are separated and the material is swollen and unevenly formed This is to avoid the use of such unevenly formed wastes.

The extrusion step S200 is a step of extruding the melt generated through the melting step S100 through an extruder and discharging the melt through an extruder including a plurality of discharge ports, And manufacturing the extrudate in the form of a rod through a plurality of outlets. Since the present invention is changed from a conventional sheet-like extrudate to a rod-like extrudate, a rolling operation for manufacturing a sheet is not required, so that the number of manufacturing processes is reduced, It is easy and time saving can be achieved.

The cutting step S300 is a step of cutting the rod shape into a lump. As mentioned in the melting step (S100), by extruding in the form of a rod, the number of processes can be reduced, and labor and energy saving effects can be obtained. However, it is not easy to crush the rod-shaped extrudate of the present invention in comparison with the process of extruding in the conventional sheet-like form, but this problem can be solved by adding the foaming agent.

The cooling step S400 is a step of cooling the cut lump in the cutting step S300. As shown in FIG. 2, a cooling bath is positioned at the end of the extruder discharging opening and the lower side of the extruder discharging the molten material through the extruder, As shown in FIG. The lump cooled in the cooling bath is conveyed to the grinding stage through the conveyor.

The pulverizing step (S500) is a step of pulverizing the lump shape cooled in the cooling step (S400). The cut lump is pulverized in the range of ² mm to 10 mm (width 4 to 100 mm ² ) through the pulverization step, and the pulverized material after the pulverization step (S 500) is further divided by the particle size. In the sorting step, a vibration filter network is used, and only a recycled chip having passed through the filter hole of the vibration filtering net is obtained. The recycling chip having a particle size of ² mm to 10 mm (4 to 100 mm ^{2 in} width) not only considers economical aspects of recycling but also maximizes the use range of the recycled chip to prevent the second pollution Because. The grinding step (S500) and the recycling chip after the sorting process are stored in the tank through a screw conveyor.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are included to provide a further understanding of the technical concept of the present invention, are incorporated in and constitute a part of the specification, and are not intended to limit the scope of the present invention.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

S100 to S500: Each step of the method for manufacturing a recycled chip using the automobile interior seat sheet waste of the present invention.
10: First crusher
20: extruder
30: Die
40: cutter
50: Cooling tank
60: Conveyor
70: Second crusher
80: Storage tank

Claims (9)

A melting step (S100) of melting a car-interior sheet wastes including a brushed layer of ground polyester and a bottom layer of polypropylene or polyethylene terephthalate to produce a solvent;
An extrusion step (S200) in which the melt is extruded in the form of a rod through an extruder;
A cutting step (S300) of cutting the rod shape of the extrusion step in a lump;
Cooling the cut lump (S400); And
Milling said cooled extrudate (S500);
And,
Further comprising 0.01 to 3 parts by weight of a foaming agent based on 100 parts by weight of the automobile interior wastepaper in the melting step (S100).
The automotive interior seat waste according to claim 1,
Wherein the filler comprises at least one filler selected from wood powder, talc, calcium carbonate, carbon black, stabilizer, master batch, antimicrobial agent and deodorizer.
delete The method according to claim 1, wherein in the melting step (S100)
And melting the automobile interior seat wastes pulverized in the range of 400 to 900 mm ^{2 in} width.
The method according to claim 1, wherein the melting temperature (S100)

)
Lt; RTI ID = 0.0 > 180 C < / RTI >
2. The method of claim 1, wherein the extruder in the extrusion step (S200)
And extruding the mixture through a plurality of discharge ports.
The method of claim 1, wherein in the grinding step (S500), the recycling chip
Wherein the pulverization is carried out in the range of 4 to 100 mm ² .
The method of claim 1, wherein the recycled chip ground in the grinding step (S500)
And dividing the particle size by a particle size through a vibration filter network.
A first crusher (10) for crushing motor vehicle interior seat waste;
An extruder (20) for melting the pulverized material pulverized by the first pulverizer to produce an extrudate;
A die 30 located at an end of the extruder for discharging the extrudate;
A cutter (40) for cutting the extrudate discharged to the die (30);
A cooling bath (50) located below the die (30) and cooling the cut lump by the cutter (40);
A conveyor 60 for conveying the cooled lump;
A second crusher (70) for crushing the cooled lumps transferred through the conveyor (60); And
A reservoir (80) for storing the pulverized material pulverized from the second pulverization;
And,
Further comprising 0.01 to 3 parts by weight of a foaming agent based on 100 parts by weight of the automotive interior wastes waste when the pulverized material is melted in the extruder (20).

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