KR20200092425A - 매끄러운 연부를 가지는 형성된 열가소성 물품 - Google Patents
매끄러운 연부를 가지는 형성된 열가소성 물품 Download PDFInfo
- Publication number
- KR20200092425A KR20200092425A KR1020207021576A KR20207021576A KR20200092425A KR 20200092425 A KR20200092425 A KR 20200092425A KR 1020207021576 A KR1020207021576 A KR 1020207021576A KR 20207021576 A KR20207021576 A KR 20207021576A KR 20200092425 A KR20200092425 A KR 20200092425A
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- South Korea
- Prior art keywords
- article
- peripheral
- flange
- deflectable flange
- smooth
- Prior art date
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/08—Deep drawing or matched-mould forming, i.e. using mechanical means only
- B29C51/082—Deep drawing or matched-mould forming, i.e. using mechanical means only by shaping between complementary mould parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/38—Cutting-out; Stamping-out
- B26F1/40—Cutting-out; Stamping-out using a press, e.g. of the ram type
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- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0017—Combinations of extrusion moulding with other shaping operations combined with blow-moulding or thermoforming
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- B29C48/03—Extrusion 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
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Abstract
Description
도 1a는 연부에 형성된 편향 가능 플랜지(160)를 가지는 열가소성 물품(100)의 단면도를 도시한다. 이러한 실시예의 편향 가능 플랜지(160)는 연장부(50), 굽힘 영역(150), 이격부(140), 및 주변 플랜지(120)를 포함한다. 연장부(50)는 물품의 성형된 본체(10)를 편향 가능 플랜지의 굽힘 영역(150)에 연결한다. 이격부(140)는 굽힘 영역(150)과 주변 플랜지(120) 사이에 개재될 수 있다. 주변 플랜지(120)는 이러한 실시예에서 직각 굽힘부로서 도시된 엘보(130)에 의해서 이격부(140)에 연결되고, 물품(100)을 형성하는 (이러한 도면에서 두꺼운 실선으로 표시된) 열가소성 재료의 주변 연부(110)에서 종료된다.
도 1b는 상부 본체(200)의 내측부 내에 삽입된 열가소성 물품(100)을 도시한다. 이러한 실시예에서, 상부 본체(200)의 내부 표면(202) 상에서의 주변 플랜지(120)의 주변 연부(110)의 충돌은 편향 가능 플랜지(160)가 이탈되게 하는데, 이는 굽힘 영역(150) 내의 하나 이상의 지점에서의 편향 가능 플랜지(160)의 굽힘 때문이다.
도 1c는 램(300)을 열가소성 물품(100)을 넘어서 상부 본체(200)의 내측부 내로 삽입하는 것의(즉, 램(300)이 도 1b에 도시된 구조물 내로 삽입될 때의) 결과를 도시한다. 램(300)은 상부 본체(200)의 내부 표면(202)에 대해서 밀접 대향되고 주변 플랜지(120)의 주변 연부(110)는 램(300)의 상부 면(302) 상에 충돌되어, 편향 가능 플랜지(160)의 보다 더 큰 편향을 유발하고, 굽힘 영역(150) 내에서 굽힘이 유도되는 지점(들)에서 물품(100)에 대한 둥근 주변부를 초래한다.
도 2는 a, b, c, 및 d로 구성되고, 둥근 모서리를 가지는 직사각형 트레이의 구조를 가지는 성형된 열가소성 물품의 주변부 상에 형성된 하나 이상의 편향 가능 플랜지(160)를 편향시키기 위한, 정합된 상부 본체(200) 및 램(300)을 도시한다. 도 2의 a는 램(300) 위에 배치된 상부 본체(200)를 도시하고, 도 2의 b는 램(300)과 결합된 상부 본체(200)를 도시한다. 도 2의 c는 도 2의 b에 도시된 결합된 상부 본체(200) 및 램(300)의 절개도이고, 램(300)의 부분이 상부 본체(200) 내의 함몰부의 내측부 표면 내에 그리고 그에 밀접 대향되어 피팅(fit)되는 것을 도시한다. 도 2의 d는 도 2의 c에 표시된 섹션의 상세도이고, 램(300)과 상부 본체(200)의 내측부 사이의 밀접 대향을 도시한다. 도 2의 d에서, 램(300)의 상부 면(302)의 경사 구조가 명확하다.
도 3은, 둥근 모서리를 가지는 직사각형 트레이의 구조를 가지는 투명하고(clear) 성형된 열가소성 물품의 매끄러운 모서리의 이미지인, 도 3a, 도 3b, 도 3c로 구성된다. 물품은 도 2에 도시된 것과 유사한 상부 본체(200) 및 램(300)을 이용하여 매끄럽게 처리되었다. 도 3a에서, 손가락을 트레이의 내측부 내에서 볼 수 있고, 매끄러운 모서리를 손가락의 좌측에서 볼 수 있다. 트레이의 매끄러운 직선형 연부가 매끄러운 모서리로부터 (도면에서 하향) 연장된다. 주변 플랜지의 주름을 매끄러운 모서리에서 볼 수 있고, 매끄러운 직선형 연부 아래의 주변 플랜지의 편향을 볼 수 있다. 도 3b는, 트레이의 테두리 아래로부터 또한 본, 유사하게-제조된 트레이의 매끄러운 모서리의 다른 도면이다. 도 3c는, 손가락이 편향 가능 플랜지의 굽힘 영역의 굽힘, 연화, 및 냉각에 의해서 형성된 매끄러운 영역을 가리키는, 매끄러운 모서리의 도면이다. 이러한 매끄러운 영역은, 예를 들어, 얇은 플라스틱 막을 용이하게 파열하지 않고, 얇은 플라스틱 막에 대해서 가압될 수 있는데, 이는, 도 3a 및 도 3b에 도시된 바와 같이, 트레이를 형성하는 열가소성 재료의 비교적 날카로운 연부가 모서리 아래에서 굽혀지기 때문이다.
도 4는 본원에서 설명된 방법을 이용하여 형성된 저장 용기 물품(100)을 통해서 취해진 단면을 도시한다(평행한 직선("//")은 명료함을 위해서 생략된 섹션을 나타낸다). 도면에서, 물품(100)은 도면에서 볼 수 있는 용기의 측면의 각각에 형성된 편향 가능 플랜지(160)를 갖는다. 단일 상부 본체(200)는, 편향 가능 플랜지(160)가 위치되는 측면 주위를 포함하여, 전체 용기에 걸쳐 연장된다. 단일 램(300)(도면에 도시된 단지 2개의 부분)이 이 물품(100) 뒤쪽에서 상부 본체(200) 내의 공동의 내측부 내에 삽입되었다. 물품(100)을 형성하는 열가소성 시트의 주변 연부(110)가 형성되고, 각각의 편향 가능 플랜지(160)에서 램(300)의 상부 면(302) 상으로 침범하여, 편향 가능 플랜지(160)가, 각각의 편향 가능 플랜지(160)의 굽힘 영역(150)의 하나 이상의 지점에서 휘어지는 것에 의해서, 물품(100)의 본체를 향해서 내향으로 편향되게 한다. 열가소성 시트를 연화시키기에 충분한 양으로 열을 인가하는 것은 편향 가능 플랜지(160)가 대략적으로 이러한 도면에 도시된 구조를 유지하게 하고, 열가소성 시트의 주변 연부(110)는 반-주변적으로(anti-peripherally)(즉, 이러한 도면에서 표시된 위치에서 발생되는, 물품(100)의 주변부 내에) 배치되어, 연화된 부분의 냉각 시에, 형성된 용기에 대한 매끄러운 주변부를 초래한다.
도 5는 본원에서 설명된 방법을 이용하여 형성된 저장 용기 물품(100)을 통해서 취해진 단면을 도시한다(평행한 직선("//")은 명료함을 위해서 생략된 섹션을 나타낸다). 도면에서, 물품(100)은 도면에서 볼 수 있는 용기의 측면의 각각에 형성된 편향 가능 플랜지(160)를 갖는다. 편향 가능 플랜지(160)는 각각의 편향 가능 플랜지(160)에서 단일 램(300)(도면에 도시된 단지 2개의 부분)의 상부 면(302)에 의한 편향 가능 플랜지(160)에의 침범에 의해서 내향으로 편향된다. 물품(100)을 형성하는 열가소성 시트의 주변 연부(110)가 각각의 편향 가능 플랜지(160)에서 램(300)의 상부 면(302) 상으로 침범하여, 편향 가능 플랜지(160)가, 각각의 편향 가능 플랜지(160)의 굽힘 영역(150)의 하나 이상의 지점에서 휘어지는 것에 의해서, 물품(100)의 본체를 향해서 내향으로 편향되게 한다. 열가소성 시트를 연화시키기에 충분한 양으로 열을 인가하는 것은 편향 가능 플랜지(160)가 대략적으로 이러한 도면에 도시된 구조를 유지하게 하고, 열가소성 시트의 주변 연부(110)는 반-주변적으로(즉, 이러한 도면에서 표시된 위치에서 발생되는, 물품(100)의 주변부 내에) 배치되어, 연화된 부분의 냉각 시에, 형성된 용기에 대한 매끄러운 주변부를 초래한다. 이러한 실시예에서, 상이한 프로파일들에 의해서 유도될 수 있는 편향의 차이를 설명하기 위해서, 램(300)의 2개의 부분이 상이한 프로파일(하나는 편형하고 하나는 곡선형이다)로 도시되어 있다.
도 6a 및 도 6b는 열가소성 재료의 시트로부터 열형성된 트레이-형상의 물품 내에 형성된 편향 가능 플랜지를 도시한다. 이러한 도면의 각각에서, 손가락은, 트레이가 시트로부터 절단된 날카로운 연부에 닿아 있다. 이러한 도면에서, 편향 가능 플랜지는 아직 연화, 편향, 및 냉각되지 않았고, 그에 따라 날카로운 연부는 트레이의 주변부 주위에 배치된 상태로 유지된다. 비교하면, 날카로운 연부는 도 3에 도시된 트레이의 주변부로부터 내향으로 그리고 멀리 편향되었다.
도 7은 도 7a, 도 7b, 및 도 7c로 구성되고, 수평 표면(수평 실선)에 놓인 열가소성 시트(평행한 직선("//")은 명료함을 위해서 생략된 섹션을 나타낸다)로 형성된 물품(100)이 본원에서 설명된 바와 같이 매끄러운 주변 연부를 가지는 실시예를 도시한다. 이러한 실시예에서, 상부 본체(200)(이러한 횡단면에서 도시된 2개의 부분)가 물품(100) 위로 하강되어, 물품의 2개의 편향 가능 플랜지(160)의 각각이 내향 편향되게 한다. 도 7a에서, 상부 본체(200)의 외향으로 펼쳐진 부분은, 상부 본체(200)가 수평 표면을 향해서 물품 상으로 하강됨에 따라, 물품(100)의 주변 플랜지(120)와 막 접촉되었고; 편향 가능 플랜지는 "B"로 표시된 지역에서 편향되기 시작한다. 도 7b에서, 상부 본체(200)는 수평 표면 상으로 하강되었고, 물품(100)의 주변 플랜지(120)는 물품(100)의 본체(10)를 향해서 내향으로 부분적으로 편향된다. 도 7c에서, 램(300)은 물품(100) 뒤쪽으로 상부 본체(200) 내의 공동 내로 삽입되었고 "B"로 표시된 지역에서의 물품 형성 열가소성 시트의 굽힘을 통해서 주변 플랜지(120)(그리고, 그와 함께, 편향 가능 플랜지(160))를 더 편향시킨다.
Claims (7)
- 주변 연부를 갖는 열가소성 재료로 제조되고 매끄러운 주변부를 가지며, 편향 가능 플랜지를 연부에 갖는 본체를 포함하는, 성형된 물품으로서,
상기 편향 가능 플랜지는
주변 플랜지의 주변 단부에 위치하는 열가소성 재료의 주변 연부;
엘보에 의해서 이격부에 연결되고 상기 이격부를 넘어서서 연장되는 주변 플랜지;
굽힘 영역에 의해서 상기 본체에 연결되고, 상기 굽힘 영역은 상기 이격부와 상기 본체 사이에서 매끄러운 곡선 형태인, 이격부; 및
상기 굽힘 영역, 상기 이격부, 상기 엘보 및 상기 주변 플랜지 중 적어도 하나를 포함하는 굽힘 부분을 포함하고,
상기 굽힘 영역 및 상기 굽힘 부분은 상기 물품의 주변부로부터 상기 주변 연부를 변위시키기에 충분히 굽혀지는, 성형된 물품. - 제1항에 있어서,
상기 편향 가능 플랜지는 상기 물품의 모든 연부 주위에 형성되고, 그리고
상기 주변 연부는 상기 물품의 전체 주변부 주위에서 상기 물품의 주변부로부터 변위되는, 성형된 물품. - 제1항에 있어서,
상기 본체는 실질적으로 평면형인 밀봉 표면에 의해서 둘러싸인 오목 격실을 포함하고, 상기 물품의 전체 주변부 주위에서 상기 밀봉 표면에 상단부 시트가 밀봉되어 밀봉된 격실을 형성하는, 성형된 물품. - 제3항에 있어서,
상기 상단부 시트는, 상기 밀봉 표면에 밀봉된 후에, 상기 밀봉 표면 주위의 주변에서 트리밍되는, 성형된 물품. - 제3항에 있어서,
상기 상단부 시트는 상기 밀봉 표면에 열-밀봉되는, 성형된 물품. - 제1항에 있어서,
밀봉된 격실을 형성하기 위해서 상기 물품 주위에 랩핑 및 밀봉된 가요성 플라스틱을 갖는, 성형된 물품. - 주변 연부를 갖는 열가소성 재료로 제조되고 매끄러운 주변부를 가지며, 편향 가능 플랜지를 연부에 갖는 본체를 포함하는, 성형된 물품으로서,
상기 편향 가능 플랜지는
주변 플랜지의 주변 단부에 위치하는 열가소성 재료의 주변 연부;
엘보에 의해서 굽힘 영역에 연결되고 상기 굽힘 영역을 넘어서서 연장되며, 상기 굽힘 영역은 상기 엘보와 상기 본체 사이에서 매끄러운 곡선 형태인, 주변 플랜지; 및
상기 굽힘 영역, 상기 엘보 및 상기 주변 플랜지 중 적어도 하나를 포함하는 굽힘 부분을 포함하고,
상기 굽힘 영역 및 상기 굽힘 부분은 상기 물품의 주변부로부터 상기 주변 연부를 변위시키기에 충분히 굽혀지는, 성형된 물품.
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| PCT/US2016/049692 WO2017040656A1 (en) | 2015-08-31 | 2016-08-31 | Formed thermoplastic article having smooth edges |
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