JP7394081B2 - レーザ溶接方法 - Google Patents
レーザ溶接方法 Download PDFInfo
- Publication number
- JP7394081B2 JP7394081B2 JP2020573361A JP2020573361A JP7394081B2 JP 7394081 B2 JP7394081 B2 JP 7394081B2 JP 2020573361 A JP2020573361 A JP 2020573361A JP 2020573361 A JP2020573361 A JP 2020573361A JP 7394081 B2 JP7394081 B2 JP 7394081B2
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- Prior art keywords
- film layer
- laser
- laser welding
- welding method
- film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Images
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
- B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/812—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
- B29C66/8122—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the composition of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
- B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
- B29C66/81421—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
- B29C66/81422—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being convex
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
- B29C66/824—Actuating mechanisms
- B29C66/8242—Pneumatic or hydraulic drives
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
- B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
- B29C66/9161—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
- B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/93—Measuring or controlling the joining process by measuring or controlling the speed
- B29C66/934—Measuring or controlling the joining process by measuring or controlling the speed by controlling or regulating the speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7128—Bags, sacks, sachets
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Electromagnetism (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Laser Beam Processing (AREA)
Description
本出願は、2018年12月6日に提出された米国特許出願第16/212,664号、および2018年7月3日に提出された米国特許出願第16/026,909号の優先権および利益を主張するものであり、これらの各々は、その全体を本願に引用して援用する。
Claims (14)
- 複数のバッグのそれぞれのフィルム層を同時に接合するためのレーザ溶接方法であって、
複数のフィルム層を、互いに隣接して、および互いと重複様式で位置付けるステップであって、前記複数のフィルム層が、第2のフィルム層に隣接する第1のフィルム層および第4のフィルム層に隣接する第3のフィルム層を含み、前記複数のフィルム層の各層が、2ミクロンの波長を有するレーザ照射を吸収する熱可塑性材料で作製される、ステップと、
前記第2のフィルム層および前記第3のフィルム層を非吸収キャリアフィルム層により分離するステップであって、前記非吸収キャリアフィルム層が、前記レーザ照射のエネルギーを透過する材料で作製される、ステップと、
前記レーザ照射を前記第1のフィルム層および前記第2のフィルム層上へ向けて、前記第1のフィルム層および前記第2のフィルム層の照射部分を互いに溶融して第1のバッグを形成するステップと、
前記第2のフィルム層と前記第3のフィルム層との間に介入される前記非吸収キャリアフィルム層を通って、前記レーザ照射の前記エネルギーを透過させるステップと、
前記レーザ照射の透過された前記エネルギーを前記第3のフィルム層および前記第4のフィルム層上へ向けて、前記第3のフィルム層および前記第4のフィルム層の照射部分を互いに溶融して第2のバッグを形成するステップであって、前記第2のバッグが、前記第1のバッグと概して同時に形成される、ステップと、
前記レーザ照射をオフにして、前記第1のフィルム層、前記第2のフィルム層、前記第3のフィルム層、および前記第4のフィルム層の少なくとも前記照射部分を固まらせるステップと、を含むことを特徴とする、レーザ溶接方法。 - 請求項1に記載のレーザ溶接方法であって、前記非吸収キャリアフィルム層の材料が、フルオロポリマーを含むことを特徴とするレーザ溶接方法。
- 請求項1に記載のレーザ溶接方法であって、前記非吸収キャリアフィルム層の材料は、ふっ素化エチレンプロピレンを含むことを特徴とするレーザ溶接方法。
- 請求項1に記載のレーザ溶接方法であって、前記非吸収キャリアフィルム層を、前記第2のフィルム層および前記第3のフィルム層と重複様式で位置付けるステップをさらに含むことを特徴とするレーザ溶接方法。
- 請求項1に記載のレーザ溶接方法であって、前記非吸収キャリアフィルム層が、前記レーザ照射の透過された前記エネルギーが前記第3のフィルム層および前記第4のフィルム層上に向けられる間、固体のままであることを特徴とするレーザ溶接方法。
- 請求項1に記載のレーザ溶接方法であって、前記非吸収キャリアフィルム層が、レーザ吸収添加剤を欠く熱可塑性材料を含むことを特徴とするレーザ溶接方法。
- 請求項1に記載のレーザ溶接方法であって、前記複数のフィルム層を前記レーザ照射で加熱するステップをさらに含むことを特徴とするレーザ溶接方法。
- 請求項7に記載のレーザ溶接方法であって、パワーおよび前記複数のフィルム層の縁に沿った前記レーザ照射の移動速度を制御して、接合されるべき領域内のそれぞれの縁を溶融するステップをさらに含むことを特徴とするレーザ溶接方法。
- 請求項1に記載のレーザ溶接方法であって、前記非吸収キャリアフィルム層が、0.14ミリメートルの厚さを有し、前記複数のフィルム層が各々、0.1~0.28ミリメートルの範囲の厚さを有することを特徴とするレーザ溶接方法。
- 請求項9に記載のレーザ溶接方法であって、前記非吸収キャリアフィルム層が、ふっ素化エチレンプロピレン(FEP)材料またはシリコーン材料のうちの少なくとも一方を含み、前記複数のフィルム層の各々が、ポリ塩化ビニル(PVC)材料を含むことを特徴とするレーザ溶接方法。
- 請求項1に記載のレーザ溶接方法であって、前記レーザ照射のために95~100ワットの範囲のパワー出力を使用するステップであって、前記レーザ照射の透過された前記エネルギーを前記第3のフィルム層および前記第4のフィルム層上に向ける前に、2.5ワットを損失する、ステップをさらに含むことを特徴とするレーザ溶接方法。
- 複数のバッグのそれぞれの層を同時に接合するためのレーザ溶接方法であって、
複数のフィルム層を、互いに隣接して、および互いと重複様式で位置付けるステップであって、前記複数のフィルム層が、第2のフィルム層に隣接する第1のフィルム層および第4のフィルム層に隣接する第3のフィルム層を含み、前記複数のフィルム層の各層が、808ナノメートル~1064ナノメートルの範囲外の波長を有するレーザ照射を吸収する熱可塑性材料で作製される、ステップと、
前記第2のフィルム層および前記第3のフィルム層を非吸収キャリアフィルム層により分離するステップであって、前記非吸収キャリアフィルム層が、前記レーザ照射のエネルギーを透過する材料で作製される、ステップと、
前記レーザ照射を前記第1のフィルム層および前記第2のフィルム層上へ向けて、照射部分を互いに溶融することによって第1のバッグを形成するステップと、
前記第2のフィルム層と前記第3のフィルム層との間に介入される前記非吸収キャリアフィルム層を通って、前記レーザ照射の前記エネルギーを透過させるステップと、
前記レーザ照射の透過された前記エネルギーを前記第3のフィルム層および前記第4のフィルム層上へ向けて、照射部分を互いに溶融することによって第2のバッグを形成するステップであって、前記第1のバッグが、前記第2のバッグと概して同時に形成される、ステップと、
前記レーザ照射をオフにして、前記第1のフィルム層、前記第2のフィルム層、前記第3のフィルム層、および前記第4のフィルム層の少なくとも前記照射部分を固まらせるステップと、を含むことを特徴とするレーザ溶接方法。 - 請求項12に記載のレーザ溶接方法であって、前記材料が、フルオロポリマーを含むことを特徴とするレーザ溶接方法。
- 請求項12に記載のレーザ溶接方法であって、前記材料が、ふっ素化エチレンプロピレンを含むことを特徴とするレーザ溶接方法。
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US16/026,909 US11548235B2 (en) | 2018-07-03 | 2018-07-03 | Laser welding system and method using machined clamping tool |
US16/026,909 | 2018-07-03 | ||
US16/212,664 | 2018-12-06 | ||
US16/212,664 US11541609B2 (en) | 2018-07-03 | 2018-12-06 | System and method for simultaneous welding of plastic bags using a carrier film |
PCT/US2019/040380 WO2020010129A1 (en) | 2018-07-03 | 2019-07-02 | Laser welding systems and methods |
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US20200009797A1 (en) | 2020-01-09 |
EP3817911A1 (en) | 2021-05-12 |
CN112739527B (zh) | 2023-04-18 |
US11541609B2 (en) | 2023-01-03 |
WO2020010129A1 (en) | 2020-01-09 |
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JP2021529691A (ja) | 2021-11-04 |
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