KR20230039272A - Eco-friendly door frame and its molding method - Google Patents

Eco-friendly door frame and its molding method Download PDF

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Publication number
KR20230039272A
KR20230039272A KR1020210122367A KR20210122367A KR20230039272A KR 20230039272 A KR20230039272 A KR 20230039272A KR 1020210122367 A KR1020210122367 A KR 1020210122367A KR 20210122367 A KR20210122367 A KR 20210122367A KR 20230039272 A KR20230039272 A KR 20230039272A
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South Korea
Prior art keywords
door frame
eco
grains
friendly
mixed
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KR1020210122367A
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Korean (ko)
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김은지
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김은지
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/022Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B11/00Making preforms
    • B29B11/02Making preforms by dividing preformed material, e.g. sheets, rods
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B11/00Making preforms
    • B29B11/06Making preforms by moulding the material
    • B29B11/10Extrusion moulding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00Making granules
    • B29B9/02Making granules by dividing preformed material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001Combinations of extrusion moulding with other shaping operations
    • B29C48/0022Combinations of extrusion moulding with other shaping operations combined with cutting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/06Rod-shaped
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C67/00Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/24Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 characterised by the choice of material
    • B29C67/248Moulding mineral fibres or particles bonded with resin, e.g. for insulating or roofing board
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/10Polymers of propylene
    • B29K2023/12PP, i.e. polypropylene
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2309/00Use of inorganic materials not provided for in groups B29K2303/00 - B29K2307/00, as reinforcement
    • B29K2309/14Stones
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2012/00Frames
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/724Doors

Abstract

According to the present invention, an eco-friendly door frame which is molded with eco-friendly synthetic resin and can increase strength and reduce shrinkage, and a forming method thereof are disclosed. The forming method of the eco-friendly door frame comprises: a mixing step in which synthetic resin granules and stone granules are mixed to prepare mixed granules; a first extrusion step in which the mixed granules of the mixing step are formed and extruded through an extruder; a compound step in which an extruded product of the first extrusion step is cut into small pieces to produce a mixture; and a second extrusion production step in which the mixture of the compound step are formed and extruded as a raw material by the extruder to produce a door frame. Even if the eco-friendly door frame is molded using the synthetic resin granules such as PP with minimal toxicity, strength of the door frame can be increased and a shrinkage rate can be minimized by maximizing a ratio of the stone granules mixed together.

Description

친환경 문틀 및 그 성형 방법{Eco-friendly door frame and its molding method}Eco-friendly door frame and its molding method {Eco-friendly door frame and its molding method}

본 발명은 친환경 문틀 및 그 성형 방법에 관한 것으로 특히 친환경 합성수지로 문틀을 성형하되 강도는 높이고 수축율을 낮출 수 있는 친환경 문틀 및 그 성형 방법에 관한 것이다.The present invention relates to an eco-friendly door frame and a molding method thereof, and more particularly, to an eco-friendly door frame capable of molding the door frame with an eco-friendly synthetic resin while increasing strength and reducing shrinkage, and a molding method thereof.

주지하는 바와 같이, 일반적으로 각종 건축용 출입문 및 문틀의 경우 주로 목재로 구성하였던바, 목재는 자체의 가격이 비교적 고가이고 장기 사용 시 부식이 심하며 특히 욕실용 출입문 및 문틀 등에 목재로 시공할 경우에는 수명이 극히 단기화되는 문제점이 있었다.As is well known, in general, various architectural doors and doorframes are mainly composed of wood, but wood itself is relatively expensive and corrodes severely when used for a long time. There was a problem with this extremely short term.

이러한 문제점을 해소하고자 수지 조성물을 이용하여 문틀을 성형하는 기술이 제안된 바 있으며, 그 대표적인 예로 대한민국 공개특허공보 제10-2005-0006114호 (발명의 명칭 : 문틀용 수지 조성물 및 이를 이용하여 제조된 문틀 ; 이하 '인용발명'이라 함)가 있다.In order to solve these problems, a technique for molding a door frame using a resin composition has been proposed, and a representative example thereof is disclosed in Korean Patent Publication No. 10-2005-0006114 (title of the invention: resin composition for door frames and manufactured using the same). There is a door frame; hereinafter referred to as 'cited invention').

상기 인용발명은 건축물의 출입구인 현관이나 방 및 창에 문짝(또는 창문)을 설치하기 위하여 출입구 상에 고정되는 합성수지재 문틀을 성형하기 위한 조성물에 있어서,The cited invention is a composition for molding a synthetic resin door frame fixed on a doorway to install a door (or window) on a doorway, room, and window of a building,

중합도가 800인 PVC 전체 중량에 대하여 PVC 경질 발포용 복합 안정제 2∼8 중량%와 난연제(혹은 불연제) 0.1∼0.3 중량%가 혼합된 PVC 55∼65 중량%와 왕겨 35∼45 중량%가 혼합된 PVC 혼합물에 대하여 PVC용 발포제 0.1∼0.3 중량%가 혼합된 것을 특징으로 하는 문틀용 수지 조성물을 이용하여 문틀은 성형하는 것이며,Based on the total weight of PVC having a degree of polymerization of 800, 2 to 8% by weight of a composite stabilizer for PVC hard foam and 0.1 to 0.3% by weight of a flame retardant (or non-retardant) are mixed with 55 to 65% by weight of PVC and 35 to 45% by weight of rice hull. The door frame is molded using a resin composition for door frames, characterized in that 0.1 to 0.3% by weight of a foaming agent for PVC is mixed with the PVC mixture,

이러한 인용발명은 난연제(혹은 불연제)가 일정 비율로 혼합된 PVC 조성물과 왕겨 및 발포제를 일정 비율로 혼합하여 조성된 합성수지 조성물을 통해 문틀을 성형함으로써 문틀의 내연성 및 충격 흡수율을 보다 향상시킬 수 있는 효과가 있으나 인용발명의 PVC 조성물은 PVC에 함유되는 프탈레이트계 가소제, 안정제로 사용되는 TBT(Tributyltin), 카드뮴 등과 같은 첨가제가 사용되므로 독성물질을 내포하게 됨에 따라 사람에게 유해하게 되는 문제점이 있고, 더욱이 이러한 수지 조성물로 문틀을 성형할 경우 수축률이 높아 시공 시 규격에 맞도록 후가공을 해야 하거나 강도가 약하여 쉽게 파손되는 문제점이 있다.In this cited invention, the flame retardant (or non-retardant) is mixed in a certain ratio with a PVC composition, and rice hull and a foaming agent are mixed in a certain ratio to mold the door frame through a synthetic resin composition, which can further improve the flame resistance and shock absorption rate of the door frame. However, the PVC composition of the cited invention has a problem of being harmful to humans as it contains toxic substances because additives such as phthalate-based plasticizers contained in PVC, TBT (Tributyltin) used as a stabilizer, and cadmium are used. When a door frame is molded with such a resin composition, there are problems in that it has a high shrinkage rate and needs to be post-processed to meet specifications during construction or is easily damaged due to low strength.

대한민국 공개특허공보 제10-2005-0006114호Republic of Korea Patent Publication No. 10-2005-0006114

본 발명의 목적은 이러한 문제점을 해결하기 위하여 합성수지로 문틀을 성형하되 독성물질이 최소화된 PP 등과 같은 친환경 합성수지를 사용하고, 친환경 합성수지의 강도를 높이고 수축률을 최소화 할 수 있도록 높은 비율로 돌알갱이를 혼합하여 성형하는 친환경 문틀 및 그 성형 방법을 제공함에 있다.An object of the present invention is to mold a door frame with synthetic resin to solve this problem, but use an eco-friendly synthetic resin such as PP with minimized toxic substances, and mix stone grains at a high rate to increase the strength of the eco-friendly synthetic resin and minimize shrinkage. It is to provide an eco-friendly door frame and a molding method for forming the same.

본 발명은 이러한 목적을 달성하기 위하여 합성수지알갱이와 돌알갱이가 혼합되어 혼합알갱이가 준비되는 혼합단계와; 상기 혼합단계의 혼합알갱이가 압출기를 통해 압출성형되는 1차 압출단계와; 상기 1차 압출단계의 압출품을 작은 조각으로 절단하여 혼합물을 만드는 콤파운드 단계와; 상기 콤파운드 단계의 혼합물을 원료로 압출기가 압출성형하여 문틀을 생산하는 2차 압출생산단계가; 구성된 친환경 문틀 성형 방법과 이러한 방법으로 성형된 친환경 문틀을 제공하여서 된 것이다.In order to achieve this object, the present invention includes a mixing step in which synthetic resin grains and stone grains are mixed to prepare mixed grains; A first extrusion step in which the mixed grains of the mixing step are extruded through an extruder; a compounding step of making a mixture by cutting the extruded product of the first extrusion step into small pieces; A secondary extrusion production step in which an extruder extrudes the mixture of the compound step as a raw material to produce a door frame; It is by providing an eco-friendly door frame molding method configured and an eco-friendly door frame molded by this method.

여기에서 상기 혼합알갱이는 합성수지알갱이가 55중량% 내지 65중량%이고, 돌알갱이가 35중량% 내지 45중량%이다.Here, the mixed grains include 55% to 65% by weight of synthetic resin grains and 35% to 45% by weight of stone grains.

이와 같이 하여 본 발명은 독성이 최소화된 PP 등과 같은 합성수지알갱이를 사용하여 친환경 문틀을 성형하더라도 함께 혼합되는 돌알갱이의 비율을 최대로 높여 문틀의 강도를 증대시키고 수축률을 최소화 할 수 있게 되는 것이며, 혼합되는 돌알갱이의 비율을 이와 같이 높이면 문틀 성형이 되지 않지만 이러한 문제점을 해소할 수 있도록 본 발명은 혼합알갱이를 1차로 압출성형한 후 이를 잘개 절단하는 콤파운드 단계를 통해 돌알갱이 비율이 높아도 문틀 압출성형이 가능한 혼합물을 생성하여 이것으로 문틀을 압출성형하므로 설계한 형상으로 문틀을 성형할 수 있게 되는 유용한 효과가 있다.In this way, the present invention increases the strength of the door frame and minimizes the shrinkage rate by maximizing the ratio of stone grains mixed together even if an eco-friendly door frame is molded using synthetic resin grains such as PP, which have minimized toxicity. If the ratio of stone grains to be formed is increased like this, door frame molding cannot be performed, but in order to solve this problem, the present invention first extrudes mixed grains and then cuts them into small pieces. Since a possible mixture is created and the door frame is extruded with it, there is a useful effect of being able to mold the door frame into the designed shape.

도1은 본 발명에 의한 친환경 문틀 성형 방법의 구체적인 실시예의 전체적인 구성을 나타내는 흐름도.
도2는 본 발명에 의하여 친환경 문틀 압출 성형을 위한 장치의 구성을 예시하는 사시도.
도3은 본 발명에 의하여 친환경 문틀 압출 성형을 위한 장치의 압출기 내부 구성을 예시하는 단면도.
도4는 본 발명에 의한 친환경 문틀 성형 방법의 다른 실시예의 전체적인 구성을 나타내는 흐름도.
1 is a flowchart showing the overall configuration of a specific embodiment of an environmentally friendly door frame molding method according to the present invention.
Figure 2 is a perspective view illustrating the configuration of an apparatus for environmentally friendly door frame extrusion molding according to the present invention.
Figure 3 is a cross-sectional view illustrating the internal configuration of the extruder of the apparatus for environmentally friendly door frame extrusion molding according to the present invention.
Figure 4 is a flow chart showing the overall configuration of another embodiment of the environmentally friendly door frame molding method according to the present invention.

이러한 본 발명을 첨부된 도면을 참조하여 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자가 용이하게 실시할 수 있도록 본 발명의 실시예를 상세히 설명하면 다음과 같다. 그러나 이는 본 발명을 특정한 개시 형태에 대해 한정하려는 것이 아니며, 본 발명의 사상 및 기술범위에 포함되는 모든 변경, 균등물 내지 대체물을 포함하는 것으로 이해되어야 하고, 여기에서 예시되는 각 도면의 구성요소들은 이해의 편의 등을 고려하여 크기나 두께를 과장되게 두껍게 또는 크거나 작게, 또는 얇게 표현하거나, 단순화하여 표현하고 있으나 이에 의하여 본 발명의 보호범위가 제한적으로 해석되어서는 안 된다.Referring to the accompanying drawings, the embodiments of the present invention will be described in detail so that those skilled in the art can easily practice the present invention. However, this is not intended to limit the present invention to a specific form disclosed, and it should be understood to include all changes, equivalents, or substitutes included in the spirit and scope of the present invention, and the components of each drawing exemplified herein Considering the convenience of understanding, the size or thickness is exaggeratedly thick, large, small, thin, or simplified, but the scope of protection of the present invention should not be construed as being limited thereby.

또한 본 명세서에서 사용한 용어는 단지 특정한 실시예를 설명하기 위해 사용된 것으로 본 발명을 한정하려는 의도가 아니며, ~포함하다~ 또는 ~이루어진다~ 등의 용어는 명세서상에 기재된 특징, 숫자, 단계, 동작, 구성요소, 부분품 또는 이들을 조합한 것이 존재함을 지정하려는 것이지, 하나 또는 그 이상의 다른 특징들이나 숫자, 단계, 동작, 구성요소, 부분품 또는 이들을 조합한 것들의 존재 또는 부가 가능성을 미리 배제하지 않는 것으로 이해되어야 하고, 다르게 정의되지 않는 한, 기술적이거나 과학적인 용어를 포함해서 여기서 사용되는 모든 용어들은 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자에 의해 일반적으로 이해되는 것과 동일한 의미를 가지고 있다. 일반적으로 사용되는 사전에 정의되어 있는 것과 같은 용어들은 관련 기술의 문맥상 가지는 의미와 일치하는 의미를 가지는 것으로 해석되어야 하며, 본 출원에서 명백하게 정의하지 않는 한, 이상적이거나 과도하게 형식적인 의미로 해석되지 않는다.In addition, terms used in this specification are used only to describe specific embodiments and are not intended to limit the present invention, and terms such as ~comprising~ or ~consisting of~ refer to features, numbers, steps, and operations described in the specification. is intended to indicate the existence of a component, part, or combination thereof, but does not preclude in advance the possibility of the existence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof. To be understood, and unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in this application, it should not be interpreted in an ideal or excessively formal meaning. don't

또한 본 발명에 의한 친환경 문틀 성형 방법 및 친환경 문틀을 설명함에 있어 편의를 위하여 대략의 방향 기준을 특정하면 중력이 작용하는 방향을 하방(하부), 상기 하방의 반대가 상방(상부)이고, 압출성형의 진행 방향을 전방(전면), 압출성형 진행의 반대 방향을 후방(후면)이며, 다른 도면과 관련된 발명의 상세한 설명 및 청구범위에서도 다른 특별한 언급이 없는 한 이 기준에 따라 방향을 특정하여 기술한다.In addition, in explaining the eco-friendly door frame molding method and eco-friendly door frame according to the present invention, if an approximate direction standard is specified for convenience, the direction in which gravity acts is downward (lower), and the opposite of the lower direction is upper (upper), and extrusion molding The forward direction (front) and the reverse direction of extrusion molding are backward (rear), and the detailed description and claims of the invention related to other drawings specify and describe the direction according to this standard unless otherwise specified. .

본 발명에 의한 친환경 문틀 성형 방법의 구체적인 실시예의 전체적인 구성을 도 1로 도시하고, 친환경 문틀 압출 성형을 위한 장치의 구성을 도 2에서 구체적으로 예시하였다.The overall configuration of a specific embodiment of an eco-friendly door frame molding method according to the present invention is shown in FIG. 1, and the configuration of an apparatus for eco-friendly door frame extrusion molding is specifically illustrated in FIG.

이에서 볼 수 있는 바와 같이, 본 발명에 의한 친환경 문틀 성형 방법은 합성수지알갱이와 돌알갱이가 혼합되어 혼합알갱이가 준비되는 혼합단계와,As can be seen from this, the eco-friendly door frame molding method according to the present invention includes a mixing step in which synthetic resin grains and stone grains are mixed to prepare mixed grains;

상기 혼합단계의 혼합알갱이가 호퍼(110) 등을 통해 압출기(100)에 투입되고, 상기 압출기(100)에 의해 금형(120)과 사이징(130)을 통과하면서 압출성형되는 1차 압출단계와,A primary extrusion step in which the mixed grains of the mixing step are introduced into the extruder 100 through the hopper 110, etc., and extruded while passing through the mold 120 and the sizing 130 by the extruder 100;

상기 1차 압출단계의 압출품을 작은 조각으로 절단하여서 된 혼합물이 생성되는 콤파운드 단계와,A compound step in which a mixture is produced by cutting the extruded product of the first extrusion step into small pieces;

상기 콤파운드 단계에서 생성된 혼합물을 원료로 압출기(100)가 압출성형하여 문틀을 생산하는 2차 압출생산단계가 구성될 수 있다.A secondary extrusion production step may be configured in which the extruder 100 extrudes the mixture generated in the compound step as a raw material to produce a door frame.

또한 상기 친환경 문틀은 독성이 없는 합성수지알갱이와 돌알갱이를 원료로 하여 상기 친환경 문틀 성형 방법으로 성형된 것이다.In addition, the eco-friendly door frame is molded by the eco-friendly door frame molding method using non-toxic synthetic resin grains and stone grains as raw materials.

여기에서 상기 합성수지알갱이는 독성이 없거나 최소화된 PP 또는 PE 등과 같은 친환경 합성수지일 수 있으며, 파우더 형태의 원료가 아닌 일정한 크기를 갖는 알갱이 형태의 것으로 사용된다.Here, the synthetic resin grains may be eco-friendly synthetic resins such as PP or PE, which are non-toxic or minimized, and are used in the form of grains having a certain size rather than raw materials in powder form.

또한 상기 합성수지알갱이와 혼합되는 돌알갱이 역시 합성수지알갱이와 유사한 크기 또는 합성수지알갱이보다 작은 크기의 알갱이 형태의 것으로 사용되며, 세척, 건조 및 이물질이 제거된 돌알갱이 원료를 사용하는 것이 바람직하다.In addition, the stone grains mixed with the synthetic resin grains are also used in the form of grains having a size similar to or smaller than the synthetic resin grains, and it is preferable to use stone grain raw materials that have been washed, dried, and foreign substances removed.

또한 상기 합성수지알갱이와 돌알갱이가 혼합된 혼합알갱이는 합성수지알갱이가 55중량% 내지 65중량%이고, 돌알갱이가 35중량% 내지 45중량%의 혼합비로 혼합되는 것이며, 이는 돌알갱이의 혼합비가 높아 강도와 난연성이 증대되고, 독성과 수축률이 최소화되어 친환경적이면서 문틀 압출 성형 이후 후가공이 최소화 될 수 있는 것이다.In addition, the mixed grains in which the synthetic resin grains and stone grains are mixed are mixed at a mixing ratio of 55% to 65% by weight of synthetic resin grains and 35% to 45% by weight of stone grains, which has a high mixing ratio of stone grains and strength And flame retardancy is increased, toxicity and shrinkage are minimized, so it is environmentally friendly and post-processing after door frame extrusion can be minimized.

이와 같이 돌알갱이의 혼합비가 높아질수록 상기 효과가 증대되는 것을 기대할 수 있겠으나 과도하게 돌알갱이의 혼합비가 높을 경우 문틀의 압출 성형이 불가능하게 될 수 있으며, 혼합알갱이에 돌알갱이 비율이 35% 내지 45% 범위로 포함된 것을 그대로 문틀로 압출성형할 경우에도 돌알갱이 비율이 너무 높아서 문틀 성형이 제대로 되지 않고 불량률이 증대되어 성형할 수 없게 되는 문제점이 발생될 수 있는 것이다.In this way, it can be expected that the above effect will increase as the mixing ratio of stone grains increases, but if the mixing ratio of stone grains is excessively high, extrusion molding of the door frame may become impossible. Even when the contents included in the % range are extruded as doorframes, the proportion of stone grains is too high, so the doorframe molding does not work properly and the defect rate increases, resulting in a problem that it cannot be molded.

본 발명은 이러한 문제점을 해소할 수 있도록 상기와 같은 범위의 비율로 합성수지알갱이와 돌알갱이가 고르게 혼합된 혼합알갱이가 압출기(100)에 투입되어 압출될 때 압출기(100) 내부의 제1혼합공간(101)에서 합성수지알갱이가 용융되면서 돌알갱이와 혼합되고, 도 3에서 단면도로 구체적으로 예시한 바와 같이, 상기 제1혼합공간(101)보다 50% 이상 점점 좁아지는 제2혼합공간(102)을 통과하면서 혼합알갱이가 정렬되며, 상기 제2혼합공간(102)보다 다시 50% 이상 좁아지는 금형(120)의 성형공간(121)을 통과하면서 돌알갱이에 합성수지가 입혀지는 구성으로 가늘고 긴 형태로 상기 1차 압출단계의 압출품이 생성되는 것이며, 이와 같은 과정으로 생성된 상기 압출품을 문틀 압출 성형을 위한 압출기(100)에 투입할 수 있는 크기의 조각으로 절단하는 콤파운드 단계를 통해 문틀 성형을 위한 혼합물을 생성하고 이러한 혼합물을 원료로 압출기(100)가 압출성형하여 문틀을 생산하는 2차 압출생산단계를 통해 문틀을 형성하기 때문에 원료에 돌알갱이 비율이 35% 내지 45% 범위로 포함되더라도 문틀의 압출 성형이 가능하게 되는 것이다.In order to solve this problem, the present invention is a first mixing space inside the extruder 100 when mixed grains in which synthetic resin grains and stone grains are evenly mixed at a ratio within the above range are put into the extruder 100 and extruded ( 101), the synthetic resin grains are melted and mixed with the stone grains, and as specifically illustrated in the cross-sectional view in FIG. While passing through the molding space 121 of the mold 120, which is narrower by 50% or more than the second mixing space 102, the mixing grains are aligned, and the synthetic resin is coated on the stone grains. The extruded product of the secondary extrusion step is produced, and the extruded product produced in this process is cut into pieces of a size that can be put into the extruder 100 for door frame extrusion molding. Through a compounding step, the mixture for molding the door frame , and the extruder 100 extrudes this mixture as a raw material to form the door frame through the secondary extrusion production step of producing the door frame, so even if the raw material contains stone grains in the range of 35% to 45%, the door frame is extruded. molding is possible.

또한 상기 콤파운드 단계에서 생성한 혼합물은 압출품을 일정 크기의 조작으로 절단하는 과정에서 돌알갱이의 함유량이 너무 많거나 너무 적은 경우 이러한 혼합물이 문틀을 압출 성형하는 혼합물로 사용될 경우 불량을 일으킬 수 있기 때문에 도 4로 예시한 바와 같이, 상기 혼합물 중 설정 중량치 보다 무겁거나 가벼운 혼합물은 다시 혼합단계에 투입되는 재활용 단계가 구성될 수 있고, 상기 혼합단계에서 혼합되는 합성수지알갱이와 돌알갱이의 혼합 비율을 유지할 수 있도록 상기 콤파운드 단계에서 생성된 혼합물 중 설정 중량치 보다 무겁거나 가벼운 혼합물을 용융하여 비중에 따라 돌알갱이와 합성수지로 분리하고, 상기 분리된 합성수지를 알갱이로 성형하여 상기 혼합 비율에 따라 각각 합성수지알갱이와 돌알갱이 원료로 사용될 수 있다.In addition, if the mixture produced in the compounding step contains too much or too little stone grains in the process of cutting the extruded product into a certain size operation, if this mixture is used as a mixture for extruding the door frame, it may cause defects. As illustrated in FIG. 4, a recycling step in which a mixture heavier or lighter than the set weight value of the mixture is put into the mixing step again may be configured, and the mixing ratio of the synthetic resin grains and stone grains mixed in the mixing step is maintained. Among the mixtures produced in the compound step, the mixture heavier or lighter than the set weight is melted and separated into stone grains and synthetic resins according to specific gravity, and the separated synthetic resins are molded into grains to form synthetic resin grains and Stone grains can be used as a raw material.

이와 같은 과정으로 생산되는 친환경 문틀은 상기 2차 압출생산단계에서 친환경 문틀로 압출성형되고 냉각기(140)에 의해 냉각 후 필요 크기로 절단되는 과정을 통해 생산될 수 있으며, 친환경 문틀의 크기는 2차 압출생산단계에서 사용되는 금형(120)에 따라 조절될 수 있다.The eco-friendly door frame produced through this process can be produced through the process of being extruded into an eco-friendly door frame in the secondary extrusion production step, cooled by the cooler 140, and then cut into the required size. It can be adjusted according to the mold 120 used in the extrusion production step.

또한 상기 2차 압출생산단계는 콤파운드 단계에서 생성된 혼합물과 친환경 합성수지를 2중 압출성형 방식으로 압출하여 상기 혼합물로 된 친환경 문틀의 표면에 이종재료층이 동시 성형되는 다층 구조의 친환경 문틀이 생산될 수 있어서 콤파운드 단계에서 생성된 혼합물로 압출성형되어 강도 증대, 수축률 감소, 무독성, 내연성 등이 증대된 친환경 문틀의 표면에 별도의 가공 없이도 이중 압출성형을 통해 이종재료층에 사용되는 상기 합성수지의 색상을 변경하여 친환경 문틀의 색상을 달리할 수 있고, 상기 합성수지에 따라 친환경 문틀표면의 광택, 코팅, 질감, 표면강도, 마찰강도, 미끄러짐 방지 기능 등을 다양하게 변경하여 적용할 수 있다.In addition, in the second extrusion production step, the mixture generated in the compounding step and the eco-friendly synthetic resin are extruded in a double extrusion molding method to produce a multi-layered eco-friendly door frame in which a layer of different materials is simultaneously molded on the surface of the eco-friendly door frame made of the mixture. The color of the synthetic resin used in the heterogeneous material layer can be changed through double extrusion without separate processing on the surface of the eco-friendly door frame, which is extruded with the mixture generated in the compounding step and has increased strength, reduced shrinkage, non-toxicity, and flame resistance. The color of the eco-friendly door frame can be changed by changing the color, and the gloss, coating, texture, surface strength, frictional strength, anti-slip function, etc. of the surface of the eco-friendly door frame can be variously changed and applied according to the synthetic resin.

이에 따라 본 발명에 의한 친환경 문틀 및 그 성형 방법은 독성이 최소화된 PP 등과 같은 합성수지알갱이를 사용하여 친환경 문틀을 성형하더라도 함께 혼합되는 돌알갱이의 비율을 최대로 높여 문틀의 강도와 난연성 등을 증대시키고, 무독성의 친환경적인 문틀을 생산할 수 있게 되는 것일 뿐만 아니라 문틀의 수축률을 최소화 할 수 있게 되는 것이며, 혼합되는 돌알갱이의 비율을 높이면 문틀 성형이 되지 않지만 이러한 문제점을 해소할 수 있도록 혼합알갱이를 압출성형한 후 이를 잘게 절단하는 콤파운드 단계를 통해 돌알갱이 비율이 높아도 문틀 압출성형이 가능한 혼합물을 생성하여 문틀을 압출성형하므로 설계한 형상으로 문틀을 성형할 수 있게 되는 것이다.Therefore, the eco-friendly door frame and its molding method according to the present invention increase the strength and flame retardancy of the door frame by maximizing the ratio of stone grains mixed together even if the eco-friendly door frame is molded using synthetic resin grains such as PP, etc., of which toxicity is minimized. , It is not only possible to produce a non-toxic and environmentally friendly door frame, but also to minimize the shrinkage rate of the door frame. If the ratio of mixed stone grains is increased, the door frame cannot be molded, but the mixed grains are extruded to solve this problem. After that, through the compound step of finely cutting it, a mixture capable of extruding the door frame even with a high proportion of stone grains is created and the door frame is extruded, so that the door frame can be molded into the designed shape.

이상에서, 본 발명에 대한 기술사상을 첨부도면과 함께 서술하였지만, 이는 본 발명의 가장 양호한 실시예를 예시적으로 설명한 것이지 본 발명을 한정하는 것이 아니고, 이 기술분야의 통상의 지식을 가진 자이면 누구나 본 발명의 기술사상의 범위를 이탈하지 않는 범위 내에서 치수 및 모양 그리고 구조 등의 다양한 변형 및 모방할 수 있음은 명백한 사실이며 이러한 변형 및 모방은 본 발명의 기술 사상의 범위에 포함된다.In the above, the technical idea of the present invention has been described together with the accompanying drawings, but this is an illustrative description of the best embodiment of the present invention, not limiting the present invention, and those skilled in the art It is a clear fact that anyone can make various modifications and imitations such as dimensions, shapes, and structures without departing from the scope of the technical idea of the present invention, and such modifications and imitations are included in the scope of the technical idea of the present invention.

100: 압출기 101: 제1혼합공간 102: 제2혼합공간
110: 호퍼 120: 금형 121: 성형공간
130: 사이징 140: 냉각기
100: extruder 101: first mixing space 102: second mixing space
110: hopper 120: mold 121: molding space
130: sizing 140: cooler

Claims (4)

합성수지알갱이와 돌알갱이가 혼합되어 혼합알갱이가 준비되는 혼합단계와,
상기 혼합단계의 혼합알갱이가 압출기를 통해 압출성형되는 1차 압출단계와,
상기 1차 압출단계의 압출품을 작은 조각으로 절단하여서 된 혼합물이 생성되는 콤파운드 단계와,
상기 콤파운드 단계의 혼합물을 원료로 압출기가 압출성형하여 문틀을 생산하는 2차 압출생산단계가 구성됨을 특징으로 하는 친환경 문틀 성형 방법.
A mixing step in which synthetic resin grains and stone grains are mixed to prepare mixed grains;
A first extrusion step in which the mixed grains of the mixing step are extruded through an extruder;
A compound step in which a mixture obtained by cutting the extruded product of the first extrusion step into small pieces is produced;
An eco-friendly door frame molding method, characterized in that a secondary extrusion production step in which the extruder extrudes the mixture of the compound step as a raw material to produce the door frame.
제 1 항에 있어서,
상기 혼합알갱기는 합성수지알갱이가 55중량% 내지 65중량%이고, 돌알갱이가 35중량% 내지 45중량%임을 특징으로 하는 친환경 문틀 성형 방법.
According to claim 1,
The mixed grain is an eco-friendly door frame molding method, characterized in that the synthetic resin grains are 55% to 65% by weight and the stone grains are 35% to 45% by weight.
제 1 항에 있어서,
상기 콤파운드 단계에서 생성한 혼합물이 설정 중량치 보다 무겁거나 가벼운 혼합물은 다시 혼합단계에 투입되는 친환경 문틀 성형 방법.
According to claim 1,
An eco-friendly door frame molding method in which the mixture produced in the compound step is heavier or lighter than the set weight value and is put into the mixing step again.
독성이 없는 합성수지알갱이와 돌알갱이를 원료로 하여 상기 제 1 항에 의한 친환경 문틀 성형 방법으로 성형된 것임을 특징으로 하는 친환경 문틀.An eco-friendly door frame characterized in that it is molded by the eco-friendly door frame molding method according to claim 1 using non-toxic synthetic resin grains and stone grains as raw materials.
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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050006114A (en) 2004-12-28 2005-01-15 (주)동성기연 Resin composite for a doorframe and doorframe using this thing

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050006114A (en) 2004-12-28 2005-01-15 (주)동성기연 Resin composite for a doorframe and doorframe using this thing

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