JP6606629B1 - 熱可塑性合成樹脂製立体エンブレムの製造方法及び製造装置 - Google Patents
熱可塑性合成樹脂製立体エンブレムの製造方法及び製造装置 Download PDFInfo
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Abstract
Description
電極平板金型と電極凸型金型を水平面内でスライド可能に具えるスライド治具と、
前記スライド治具に対して上下方向に接近離間可能であって、前記電極平板金型及び前記電極凸型金型に対向可能な位置に配置された電極凹型金型と、
前記電極凹型金型と、前記スライド治具の前記電極平板金型又は前記電極凸型金型を対向させた状態で、対向する金型間に高周波を連続して発振させることで、高周波誘電加熱させる高周波発振器と、
を具え、
金属蒸着積層フィルムを含む上層材料と熱可塑性合成樹脂シートを含む下層材料を高周波誘電加熱により溶着一体化して得られる熱可塑性合成樹脂製の立体エンブレムの製造装置であって、
前記電極平板金型には、前記電極凹型金型と対向する面に1又は複数の凹みが形成されており、前記凹みには、前記下層材料を前記電極平板金型と前記電極凹型金型の間に挟み、高周波誘電加熱を行なったときに、前記下層材料の一部が侵入して、賦形された前記下層材料が前記電極平板金型に保持するようにした。
電極平板金型と電極凸型金型を水平面内でスライド可能に具えるスライド治具と、
前記スライド治具に対して上下方向に接近離間可能であって、前記電極平板金型及び前記電極凸型金型に対向可能な位置に配置された電極凹型金型と、
前記電極凹型金型と、前記スライド治具の前記電極平板金型又は前記電極凸型金型を対向させた状態で、対向する金型間に高周波を連続して発振させることで、高周波誘電加熱させる高周波発振器と、
を具える熱可塑性合成樹脂製の立体エンブレムの製造装置を用い、
金属蒸着積層フィルムを含む上層材料と熱可塑性合成樹脂シートを含む下層材料を高周波誘電加熱により溶着一体化して得られる熱可塑性合成樹脂製の立体エンブレムを製造する方法であって、
前記電極平板金型と前記電極凹型金型の間に前記下層材料を配置し、前記電極平板金型と前記電極凹型金型を接近させて高周波誘電加熱を行なう下層賦形ステップであって、賦形された前記下層材料を前記電極平板金型に保持させ、前記電極平板金型と前記電極凹型金型を離間させる下層賦形ステップと、
前記スライド治具は、前記電極凸型金型を前記電極凹型金型と対向するようスライドさせ、前記電極凸型金型と前記電極凹型金型の間に前記上層材料を配置し、前記電極凸型金型と前記電極凹型金型を接近させて高周波誘電加熱を行なうことにより前記上層材料を成形する上層成形ステップであって、成形された前記上層材料を前記電極凹型金型に保持させ、前記電極凸型金型と前記電極凹型金型を離間させる上層成形ステップと、
前記スライド治具は、前記下層材料を保持した前記電極平板金型を、前記上層材料を保持した前記電極凹型金型と対向するようスライドさせ、前記電極平板金型と前記電極凹型金型を接近させて、前記下層材料と前記上層材料を重ねて押圧しつつ、高周波誘電加熱を行なうことにより、前記下層材料と前記上層材料を溶着させ、前記電極平板金型と前記電極凹型金型を離間させる溶着ステップと、
を含む。
上記構成の下層材料44を高周波誘電加熱により賦形するステップである。具体的には、電極凹型金型20をスライド治具10から離間(上昇)させ、電極平板金型11に下層材料44を載置する。下層材料44は、後工程にて除去される不要部分が凹み12と対向するよう配置する。
次に、上層材料46を高周波誘電加熱により成形する。具体的には、電極凹型金型20をスライド治具10から離間(上昇)させたまま、電極凸型金型14に上層材料46を載置する。
続いて、賦形された下層材料44と成形された上層材料46を密着一体化させる。具体的には、電極凹型金型20をスライド治具10から離間(上昇)させたまま、スライド治具10は、図9に示すように下層材料44が保持された電極平板金型11が長さ方向中央に位置するように金型11,14をスライドさせる。この状態から高周波発振器を作動させつつ、図10(a)に示すように、上層材料46が保持された電極凹型金型20を、下層材料44が保持された電極平板金型11に接近(下降)させ、金型11,20で下層材料44と上層材料46を密着させながら、高周波誘電加熱を行なう。これにより、下層材料44と上層材料46は、絶縁体が再度発熱溶融して密着一体化する。また、この高周波誘電加熱により、下層材料44と上層材料46の形状が確かなものになる。
溶着ステップが完了すると、立体エンブレム材料41が冷却されて硬化した後、電極平板金型11から引き剥がす。これにより、図3に示すように凹み12に侵入していた下層材料44aが凹み12から引き出され、立体エンブレム材料41は電極平板金型11から離脱する。
離型された立体エンブレム材料41は、模様部分42以外に不要部分が形成されているから、仕上げ加工により不要部分を除去する。また、必要に応じて立体エンブレム40を種々の製品に装着するために、裏面に両面テープ48又はホットメルトフィルムと、離型紙49を載置する。なお、不要部分を除去すると、図柄によっては離型紙49を外したときに、模様部分42がずれてしまうため、表面にアプリケーションフィルムを貼着する。アプリケーションフィルムは、ポリエステルフィルムや紙にアクリル系粘着剤を塗布したシートを例示することができるが、これに限定されるものではない。
11 電極平板金型
12 凹み
12a ビス
14 電極凸型金型
20 電極凹型金型
40 立体エンブレム
44 下層材料
44a 凹みに侵入した下層材料
46 上層材料
Claims (6)
- 電極平板金型と電極凸型金型を水平面内でスライド可能に具えるスライド治具と、
前記スライド治具に対して上下方向に接近離間可能であって、前記電極平板金型及び前記電極凸型金型に対向可能な位置に配置された電極凹型金型と、
前記電極凹型金型と、前記スライド治具の前記電極平板金型又は前記電極凸型金型を対向させた状態で、対向する金型間に高周波を連続して発振させることで、高周波誘電加熱させる高周波発振器と、
を具え、
金属蒸着積層フィルムを含む上層材料と熱可塑性合成樹脂シートを含む下層材料を高周波誘電加熱により溶着一体化して得られる熱可塑性合成樹脂製の立体エンブレムの製造装置であって、
前記電極平板金型には、前記電極凹型金型と対向する面に1又は複数の凹みが形成されており、前記凹みには、前記下層材料を前記電極平板金型と前記電極凹型金型の間に挟み、高周波誘電加熱を行なったときに、前記下層材料の一部が侵入して、賦形された前記下層材料が前記電極平板金型に保持される、
熱可塑性合成樹脂製の立体エンブレムの製造装置。 - 前記電極平板金型の前記凹みには、内部に侵入した前記下層材料の抜止め部材が形成されている、
請求項1に記載の熱可塑性合成樹脂製の立体エンブレムの製造装置。 - 前記電極平板金型の前記凹みは、内部が拡径したくさび形状である、
請求項1に記載の熱可塑性合成樹脂製の立体エンブレムの製造装置。 - 電極平板金型と電極凸型金型を水平面内でスライド可能に具えるスライド治具と、
前記スライド治具に対して上下方向に接近離間可能であって、前記電極平板金型及び前記電極凸型金型に対向可能な位置に配置された電極凹型金型と、
前記電極凹型金型と、前記スライド治具の前記電極平板金型又は前記電極凸型金型を対向させた状態で、対向する金型間に高周波を連続して発振させることで、高周波誘電加熱させる高周波発振器と、
を具える熱可塑性合成樹脂製の立体エンブレムの製造装置を用い、
金属蒸着積層フィルムを含む上層材料と熱可塑性合成樹脂シートを含む下層材料を高周波誘電加熱により溶着一体化して得られる熱可塑性合成樹脂製の立体エンブレムを製造する方法であって、
前記電極平板金型と前記電極凹型金型の間に前記下層材料を配置し、前記電極平板金型と前記電極凹型金型を接近させて高周波誘電加熱を行なう下層賦形ステップであって、賦形された前記下層材料を前記電極平板金型に保持させ、前記電極平板金型と前記電極凹型金型を離間させる下層賦形ステップと、
前記スライド治具は、前記電極凸型金型を前記電極凹型金型と対向するようスライドさせ、前記電極凸型金型と前記電極凹型金型の間に前記上層材料を配置し、前記電極凸型金型と前記電極凹型金型を接近させて高周波誘電加熱を行なうことにより前記上層材料を成形する上層成形ステップであって、成形された前記上層材料を前記電極凹型金型に保持させ、前記電極凸型金型と前記電極凹型金型を離間させる上層成形ステップと、
前記スライド治具は、前記下層材料を保持した前記電極平板金型を、前記上層材料を保持した前記電極凹型金型と対向するようスライドさせ、前記電極平板金型と前記電極凹型金型を接近させて、前記下層材料と前記上層材料を重ねて押圧しつつ、高周波誘電加熱を行なうことにより、前記下層材料と前記上層材料を溶着させ、前記電極平板金型と前記電極凹型金型を離間させる溶着ステップと、
を含む熱可塑性合成樹脂製の立体エンブレムの製造方法。 - 前記電極平板金型には、前記電極凹型金型と対向する面に1又は複数の凹みが形成されており、前記下層賦形ステップにて前記凹みに前記下層材料の一部が侵入し、前記電極平板金型に前記下層材料を保持する、
請求項4に記載の熱可塑性合成樹脂製の立体エンブレムの製造方法。 - 前記下層賦形ステップは、前記電極平板金型に前記下層材料を粘着テープで貼着することにより、前記電極平板金型に前記下層材料を保持する、
請求項4に記載の熱可塑性合成樹脂製の立体エンブレムの製造方法。
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