JP5815653B2 - Method for heat-sealing sheet material made of thermoplastic material - Google Patents
Method for heat-sealing sheet material made of thermoplastic material Download PDFInfo
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- JP5815653B2 JP5815653B2 JP2013251770A JP2013251770A JP5815653B2 JP 5815653 B2 JP5815653 B2 JP 5815653B2 JP 2013251770 A JP2013251770 A JP 2013251770A JP 2013251770 A JP2013251770 A JP 2013251770A JP 5815653 B2 JP5815653 B2 JP 5815653B2
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Description
本発明は、熱可塑性素材で形成したシート材を加熱加圧することで接合する熱融着方法に関するものである。
The present invention relates to thermal fusion method of joining by heating and pressing a sheet material formed of a thermoplastic material.
可塑性素材で形成したシート材を接合する熱融着方法として、従来、上下に配設された一対の無端ベルトにおける相対向する往動走行部の相互間に熱可塑性素材で形成したシート材の送り経路が形成され、各無端ベルトの往動走行部における前記送り経路との対向面の反対側面に沿って加熱ユニットを配置するとともに、加熱ユニットよりも送り方向下流側に冷却ユニットを配置し、その加熱ユニットでの加熱によって、上述の連続走行しているシート材を溶着可能温度範囲まで加熱して溶着するものが提案されている。 Conventionally, as a heat fusion method for joining sheet materials formed of a plastic material, feeding of a sheet material formed of a thermoplastic material between the opposing forward travel portions of a pair of endless belts arranged vertically A path is formed, and a heating unit is disposed along a side opposite to the surface facing the feed path in the forward travel portion of each endless belt, and a cooling unit is disposed downstream of the heating unit in the feed direction. It has been proposed to heat and heat the above-mentioned continuously running sheet material to a weldable temperature range by heating with a heating unit.
ところが、この従来のものでは、上側無端ベルト及び加熱ユニットを保持している上部構造体(取付枠)を開閉揺動可能に構成し、接合操作時には、送り経路を構成している上下一対の無端ベルトは一定の間隔で対向しており、加熱ユニットも所定の長さ接触させているから、シート材に加熱ユニットからの熱を所定の長さに亘って作用させることになり、シート材はいわゆる直線的接合しかできないという問題があった。このため、あえて曲線接合させようとすると、シート材に横方向への無理な力が作用し、皺を発生させることになり、近年要望の多い無縫製被服の製造に充分対応できていないという問題があった。
However, in this conventional one, the upper endless belt (mounting frame) holding the upper endless belt and the heating unit is configured to be openable and swayable, and at the time of joining operation, a pair of upper and lower endless ends constituting a feed path Since the belts face each other at regular intervals and the heating unit is also in contact with the sheet for a predetermined length , heat from the heating unit is applied to the sheet material for a predetermined length. There was a problem that only linear joining was possible. For this reason, when trying to join in a curved line, excessive force in the lateral direction acts on the sheet material, causing wrinkles, and the problem that it has not been sufficiently compatible with the manufacture of unsewn garments that have been demanded in recent years. was there.
本発明は、このような点に着目して提案されるもので、曲線接合させても皺などがよることなく接合できる熱融着方法を提供することを目的とする。 The present invention has been proposed by paying attention to such points, and an object of the present invention is to provide a heat-sealing method capable of joining without curling even if curved joining is performed.
上述の目的を達成するために、本発明は、上下に配設された一対の無端ベルトにおける相対向する往動走行部の相互間に熱可塑性素材で形成したシート材の送り経路が形成され、各無端ベルトの往動走行部における前記送り経路を構成している対向面の反対側面に沿って加熱ユニットを配置するとともに、加熱ユニット配設個所よりも送り方向下流側に冷却ユニットを配置してシート材同士を熱融着させる熱可塑性素材で形成したシート材の熱融着方法であって、
前記加熱ユニットを無端ベルトの送り経路形成部分に向けて進退可能に構成し、前記シート材の走行中に圧力が間歇的に作用するように加熱ユニット(12)の押圧−押圧解除を所定の周期で間歇的に繰り返し行うことにより、シート材を間歇融着により曲線接合するようにしたことを特徴としている。
In order to achieve the above-mentioned object, the present invention is provided with a sheet material feed path formed of a thermoplastic material between mutually opposite forward travel portions of a pair of endless belts arranged vertically, A heating unit is arranged along the opposite side of the facing surface that constitutes the feed path in the forward travel portion of each endless belt, and a cooling unit is arranged downstream of the heating unit placement location in the feed direction. A method for heat-sealing a sheet material formed of a thermoplastic material for heat-sealing sheet materials,
The heating unit is configured to be capable of advancing and retracting toward the feed path forming portion of the endless belt, and pressing and releasing of the heating unit (12) are performed in a predetermined cycle so that pressure acts intermittently during the travel of the sheet material. In this case, the sheet material is curvedly joined by intermittent fusion by repeating intermittently .
本発明では、加熱ユニットでの押圧と押圧解除作動とを間歇的に繰り返すようにしていることから、押圧解除時でのシート材の動きで曲線部分の接合を行うことができる。このとき、シート材の動きを規制する加圧力が作用しないことから、シート材に皺などが発生する事がない。 In the present invention, since the pressing by the heating unit and the pressing release operation are intermittently repeated, the curved portions can be joined by the movement of the sheet material at the time of pressing release. At this time, no pressurizing force that restricts the movement of the sheet material acts, so that no wrinkles or the like occur in the sheet material.
この熱融着装置は、四フッ化エチレン樹脂などの耐熱性・耐摩耗性に優れた合成樹脂製の一対の無端ベルト(１)(２)をその一部が対向する状態で上下に配置し、対向しているベルト面間をシート材(Ｓ)の送り経路(３)に形成している。
This heat sealing device, arranged pair of endless belts made of synthetic resin having excellent that heat resistance and abrasion resistance such as tetrafluoroethylene resin (1) (2) up and down in a state where a part thereof is opposed And between the belt surfaces which oppose is formed in the feed path (3) of sheet material (S).
上側に位置する無端ベルト(１)の駆動機構は電動モータ等の駆動源(４)に連動接続されている駆動プーリ(５)と送り経路(３)の前後両端部にそれぞれ位置する従動プーリ(６ａ)(６ｂ)と、テンションプーリ(７)とで構成してある。 The drive mechanism of the endless belt (1) located on the upper side is a drive pulley (5) linked to a drive source (4) such as an electric motor and a driven pulley ( 6a) and 6b) and a tension pulley (7).
また、下側に位置する無端ベルト(２)の駆動機構は電動モータ等の駆動源(８)に連動接続されている駆動プーリ(９)と送り経路(３)の前後両端部にそれぞれ位置する従動プーリ(10ａ)(10ｂ)と、テンションプーリ(11)とで構成してある。 Further, the drive mechanism of the endless belt (2) located on the lower side is located at both the front and rear ends of the drive pulley (9) and the feed path (3) connected to the drive source (8) such as an electric motor. A driven pulley (10a) (10b) and a tension pulley (11) are included.
上側に位置している無端ベルト(１)での送り経路(３)を構成している部分の裏面側(内面側)に加熱ユニット(12)と冷却ユニット(13)とが配設してある。なお、この加熱ユニット(12)は冷却ユニット(13)よりもシート材(Ｓ)の移動方向上手側に位置している。 A heating unit (12) and a cooling unit (13) are disposed on the back side (inner surface side) of the portion constituting the feed path (3) of the endless belt (1) located on the upper side. . The heating unit (12) is located on the upper side in the moving direction of the sheet material (S) relative to the cooling unit (13).
この送り経路(３)の上側に位置する加熱ユニット(12)及び冷却ユニット(13)は空圧シリンダ(14)(15)でそれぞれ送り経路(３)に向けて進退するように構成してある。 The heating unit (12) and the cooling unit (13) located above the feed path (3) are configured to advance and retract toward the feed path (3) by pneumatic cylinders (14) and (15), respectively. .
さらに、下側に位置している無端ベルト(２)での送り経路(３)を構成している部分の裏面側(内面側)に加熱ユニット(16)と冷却ユニット(17)とが前記上側に位置する加熱ユニット(12)及び冷却ユニット(13)に対応する個所に配設してある。 Furthermore, a heating unit (16) and a cooling unit (17) are arranged on the upper side on the back side (inner side) of the portion constituting the feed path (3) of the endless belt (2) located on the lower side. Are disposed at locations corresponding to the heating unit (12) and the cooling unit (13).
この送り経路(３)の下側に位置する加熱ユニット(16)は空圧シリンダ(18)で送り経路(３)に対して進退するように構成してあり、送り経路(３)の下側に位置する冷却ユニット(17)は送り経路(３)に対しては相対固定されている。 The heating unit (16) located below the feed path (3) is configured to advance and retreat with respect to the feed path (3) by the pneumatic cylinder (18). The cooling unit (17) located at is fixed relative to the feed path (3).
上下に対向して位置している加熱ユニット(12)(16)はそれぞれヒータ加熱されるようになっており、上下に対向して配置されている冷却ユニット(13)(17)は冷却水等の冷媒液で冷却されるようになっている。 The heating units (12) and (16) located opposite to each other are heated by the heater, and the cooling units (13) and (17) arranged opposite to each other are provided with cooling water or the like. The refrigerant liquid is used for cooling.
なお、両加熱ユニット(12)(16)及び冷却ユニット(13)は、図２に示す空圧制御系を使用して、加熱ユニット(12)(16)の空圧シリンダ(14)(15)及び冷却ユニット(13)の空圧シリンダ(18)に圧縮空気を給排することで進退作動するようにしてある。更に、上側に配置されている加熱ユニット(12)及び冷却ユニット(13)は同期して２５Ｈｚ(４０ｍｓ)という短周期でシート材(Ｓ)に対して加圧−圧力解除を間歇的に繰り返すようにしている。 Both the heating units (12), (16) and the cooling unit (13) are connected to the pneumatic cylinders (14), (15) of the heating units (12), (16) using the pneumatic control system shown in FIG. In addition, the compressed air is supplied to and discharged from the pneumatic cylinder (18) of the cooling unit (13) so as to advance and retract. Furthermore, the heating unit (12) and the cooling unit (13) arranged on the upper side repeat the pressurization-pressure release to the sheet material (S) intermittently in a short cycle of 25 Hz (40 ms) in synchronization. I have to.
加熱ユニット(12)及び冷却ユニット(13)を同期して加圧−圧力解除を所定の周期で間歇的に繰り返すことで、シート材(Ｓ)に作用する圧力が間歇的になることから、圧力解除時にシート材(Ｓ)を左右にずらしてもシート材(Ｓ)に捩れ力が作用することがなくなり、シート材(Ｓ)の挟圧位置(接合位置)を変化させることが軽い力でできるようになり、シート材(Ｓ)に皺を生じさせることを抑制できる。 Since the pressure acting on the sheet material (S) becomes intermittent by repeating the pressurization and pressure release intermittently in a predetermined cycle in synchronization with the heating unit (12) and the cooling unit (13), the pressure Even if the sheet material (S) is shifted to the left or right at the time of release, the twisting force does not act on the sheet material (S), and the clamping position (joining position) of the sheet material (S) can be changed with a light force. As a result, it is possible to suppress wrinkling of the sheet material (S).
上述の実施形態では、下側にも加熱ユニット(16)及び冷却ユニット(17)を配置したものについて説明したが、下側では加熱ユニット(16)と冷却ユニット(17)とを省略して、無端ベルト(２)及び回転ローラで上側の加熱ユニット(12)及び冷却ユニット(13)の押圧力を受けるようにしてもよい。
In the above embodiment, the heating unit (16) and the cooling unit (17 ) are also arranged on the lower side, but the heating unit (16) and the cooling unit (17) are omitted on the lower side, You may make it receive the pressing force of an upper heating unit (12) and a cooling unit (13) with an endless belt (2) and a rotating roller.
また、上記実施形態では、加熱ユニット(12)と冷却ユニット(13)との加圧−圧力解除作動を同期させたものについて説明したが、加熱ユニット(12)と冷却ユニット(13)とは、非同期であってもよい。 Further, in the above embodiment, the heating unit (12) and the cooling unit (13) have been described with respect to the synchronized pressure-pressure release operation, but the heating unit (12) and the cooling unit (13) are: It may be asynchronous.
本発明は、熱可塑性素材で形成したシート材の曲線接合が容易になることから、素材シートの接合のみならず、無縫製被服の接合に利用することができる。 INDUSTRIAL APPLICABILITY Since the present invention facilitates curvilinear joining of sheet materials formed of thermoplastic materials, it can be used not only for joining material sheets but also for joining non-sewn clothing.
１・２…無端ベルト、３…シート材送り経路、12…加熱ユニット、13…冷却ユニット、14…流体圧アクチュエータ(空圧シリンダ)。 1, 2 ... endless belt, 3 ... sheet material feed path, 12 ... heating unit, 13 ... cooling unit, 14 ... fluid pressure actuator (pneumatic cylinder).
Claims (3)
前記加熱ユニット(12)を無端ベルト(１)(２)の送り経路形成部分に向けて進退可能に構成し、前記シート材(Ｓ)の走行中に圧力が間歇的に作用するように加熱ユニット(12)の押圧−押圧解除を所定の周期で間歇的に繰り返し行うことにより、シート材(Ｓ)を間歇融着により曲線接合するようにしたことを特徴とする熱可塑性素材で形成したシート材の熱融着方法 A feed path (3) of a sheet material (S) made of a thermoplastic material is formed between the opposite traveling portions of the pair of endless belts (1) and (2) arranged on the upper and lower sides. A heating unit (12) is disposed along the opposite side of the facing surface constituting the feed path (3) in the forward travel section of the endless belt (1) (2). Is also a method for heat-sealing a sheet material formed of a thermoplastic material in which a cooling unit (13) is arranged on the downstream side in the feed direction and the sheet materials (S) are heat-sealed.
The heating unit (12) is configured to be able to advance and retract toward the feed path forming portion of the endless belts (1) and (2), so that the pressure acts intermittently during the travel of the sheet material (S). A sheet material formed of a thermoplastic material, characterized in that the sheet material (S) is curvedly bonded by intermittent fusion by repeatedly performing the pressing-depressing of (12) at a predetermined cycle. Heat sealing method
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| JP2013251770A JP5815653B2 (en) | 2013-12-05 | 2013-12-05 | Method for heat-sealing sheet material made of thermoplastic material |
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| JP2013251770A JP5815653B2 (en) | 2013-12-05 | 2013-12-05 | Method for heat-sealing sheet material made of thermoplastic material |
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| JP2011505729A Division JP5470372B2 (en) | 2009-03-25 | 2009-03-25 | Thermal fusion device for sheet material made of thermoplastic material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS57152915A (en) * | 1981-03-18 | 1982-09-21 | Mitsubishi Monsanto Chem Co | Apparatus for heat bonding plastic film |
| JPH0231725U (en) * | 1988-08-23 | 1990-02-28 | ||
| JPH05338026A (en) * | 1992-06-05 | 1993-12-21 | Gunze Ltd | Manufacture of laminated matter |
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