JP3291280B2 - High frequency welding mold for polyolefin film or sheet - Google Patents

High frequency welding mold for polyolefin film or sheet

Info

Publication number
JP3291280B2
JP3291280B2 JP32460199A JP32460199A JP3291280B2 JP 3291280 B2 JP3291280 B2 JP 3291280B2 JP 32460199 A JP32460199 A JP 32460199A JP 32460199 A JP32460199 A JP 32460199A JP 3291280 B2 JP3291280 B2 JP 3291280B2
Authority
JP
Japan
Prior art keywords
mold
sheet
polyolefin
film
welding
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.)
Expired - Fee Related
Application number
JP32460199A
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Japanese (ja)
Other versions
JP2001138401A (en
Inventor
聖一 勝田
Original Assignee
日聖テクノ株式会社
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Application filed by 日聖テクノ株式会社 filed Critical 日聖テクノ株式会社
Priority to JP32460199A priority Critical patent/JP3291280B2/en
Publication of JP2001138401A publication Critical patent/JP2001138401A/en
Application granted granted Critical
Publication of JP3291280B2 publication Critical patent/JP3291280B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
    • B29C66/326—Shaping the burr, e.g. by the joining tool
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/04—Dielectric heating, e.g. high-frequency welding, i.e. radio frequency welding of plastic materials having dielectric properties, e.g. PVC
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/72—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by combined operations or combined techniques, e.g. welding and stitching
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/743—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc
    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • 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
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • 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
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • 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
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/45—Joining of substantially the whole surface of the articles
    • 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
    • B29C66/71—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 composition of the plastics material of the parts to be joined
    • 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
    • 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
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • 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
    • B29C66/73—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/735—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the extensive physical properties of the parts to be joined
    • B29C66/7352—Thickness, e.g. very thin
    • 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
    • B29C66/81415—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 bevelled
    • 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
    • B29C66/81425—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 stepped, e.g. comprising a shoulder

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Package Closures (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明はポリオレフィン系フ
ィルム又はシートの高周波溶着用金型に関し、高周波ウ
エルダーの一方の電極に装着してポリオレフィン系フィ
ルムまたはシート同士、またはポリオレフィン系フィル
ムまたはシートと成形品との高周波溶着に用いる金型で
あって、溶着と溶断を均一かつ確実に行うのに好適な金
型に関する。The present invention relates to a high-frequency welding die of polyolefin films or sheets BACKGROUND OF THE INVENTION While the attached to the electrode polyolefin film or sheet the Judges high frequency welder, or a polyolefin-based film or sheet molded TECHNICAL FIELD The present invention relates to a mold used for high-frequency welding with a product, which is suitable for performing welding and fusing uniformly and reliably.

【０００２】[0002]

【従来の技術】高周波誘電加熱によりポリ塩化ビニルの
フィルムないしシートを溶着して包装材等の成形品を製
造されている。ポリ塩化ビニルは高周波誘電加熱時に塩
素ガス等を発生し、また、加工機を腐食させる等の問題
がり、さらには、焼却すると、有害ガスを発生して地球
環境を悪化させる等の問題を有する。このため、このよ
うな問題をおこす恐れのないポリオレフィン系フィルム
ないしシートを用いて高周波誘電加熱によって所望の成
形品を製造する方法が行われ、あるいは種々提案されて
いる。2. Description of the Related Art A molded article such as a packaging material is manufactured by welding a polyvinyl chloride film or sheet by high frequency dielectric heating. Polyvinyl chloride has problems such as generation of chlorine gas and the like during high-frequency dielectric heating and corrosion of a processing machine. Furthermore, when incinerated, harmful gas is generated to deteriorate the global environment. For this reason, a method of producing a desired molded article by high-frequency dielectric heating using a polyolefin-based film or sheet that does not cause such a problem has been carried out, or various proposals have been made.

【０００３】ポリオレフィン系フィルムないしシート
は、高周波誘導加熱による融着が困難であるため、外部
加熱による熱溶融法が行われていた。例えば、高周波ウ
ェルダーの金型や下板を特定の温度に制御し、金型と下
板との間を特定の圧力に制御する手段、金型の外部ヒー
ターを取りつけて金型を加熱する手段等によって熱溶融
を行う方法が採用されている。[0003] Since it is difficult to fuse a polyolefin-based film or sheet by high-frequency induction heating, a heat melting method using external heating has been used. For example, means for controlling the mold and lower plate of the high-frequency welder to a specific temperature, controlling the pressure between the mold and the lower plate to a specific pressure, means for attaching the external heater of the mold and heating the mold. A method of performing heat melting by using the method described above.

【０００４】従来、高周波溶着用金型を用いてポリオレ
フィン系フィルムないしシートを溶着する場合、次のよ
うな方法が行われている。高周波ウエルダーの一方の電
極に高周波溶着用金型をシャコ万力等の取付具を介して
取り付け、電極からの熱伝導により加熱された金型と下
板(他方の電極)との間にポリオレフィンフィルムを複数
枚(例えば３枚）介在させる。次に金型と下板により複
数枚のポリオレフィンフィルムを所定の圧力により加圧
し、所定の高周波出力で所定のウエルダー時間で高周波
誘電加熱し、ポリオレフィンフィルムの溶着を行う。Conventionally, when a polyolefin-based film or sheet is welded using a high-frequency welding mold, the following method is used. Polyolefin film between the mounting a high-frequency welding die through a fitting, such as a giant ten thousand power to one electrode of the high-frequency welder, the mold is heated by heat conduction from the electrode and the lower plate (the other electrode) (For example, three). Next, a plurality of polyolefin films are pressurized with a predetermined pressure by a mold and a lower plate, and subjected to high-frequency dielectric heating with a predetermined high-frequency output and a predetermined welder time, thereby welding the polyolefin films.

【０００５】従来、一般的な金型は、図７に示すよう
に、金型７０の先端部は、平坦に形成されており、金型
７０の側面にカッター７２が固定された構造となってい
る。この金型を用いて図５及び図６に示したような帯部
５０、ベロ部５２を備えたケースを製造するとき、帯部
５０、ベロ部５２及び表面部５４を構成する３枚のポリ
オレフィンフィルムを積層した状態で溶着するため、溶
着部から樹脂溶融物がフィルム状となってはみ出しやす
く、溶着切断部分にこのフィルム状の樹脂溶融物が残存
した状態で成形されるため、製品外観上問題が生じてい
た。Conventionally, a general mold has a structure in which a tip of a mold 70 is formed flat and a cutter 72 is fixed to a side surface of the mold 70 as shown in FIG. I have. When manufacturing a case having the band portion 50 and the tongue portion 52 as shown in FIGS. 5 and 6 using this mold, three polyolefins constituting the band portion 50, the tongue portion 52 and the surface portion 54 are formed. Since the film is welded in a laminated state, the resin melt is likely to protrude into a film form from the welded portion, and is formed in a state where the film-shaped resin melt remains in the weld cut portion. However, there was a problem in the appearance of the product.

【０００６】そこで、図８に示すように金型８０先端部
であって、カッター８２側に断面矩形状の溶着部からの
溶解フィルムの逃げ部８４を設けた金型を用いて溶着す
る方法も行われている。しかし、この金型を用いて図５
及び図６に示したようなケースを製造する場合、金型８
０は先端部が平坦な金型と比較すると、逃げ部８４を設
けた分だけ溶着面が減少しているため、溶着時にフィル
ムの加わる圧力が低下し、溶着部に剥離現象が生じ、溶
着部の引裂き強度が低下する等の問題があった。[0008] Therefore, as shown in FIG. 8, welding is performed by using a mold provided with a relief portion 84 for a molten film from a welded portion having a rectangular cross section on the cutter 82 side at the tip end of the mold 80. Is being done. However, using this mold, FIG.
When manufacturing the case as shown in FIG.
In the case of No. 0, as compared with a mold having a flat tip portion, the welding surface is reduced by the provision of the escape portion 84, so that the pressure applied to the film at the time of welding is reduced, and a peeling phenomenon occurs at the welded portion. There was a problem that the tear strength was lowered.

【０００７】[0007]

【発明が解決しようとする課題】本発明の目的は、製品
の外観に優れ、かつ溶着部の引裂き強度に優れたポリオ
レフィン系フィルム又はシートの高周波溶着製品を製造
することができるポリオレフィン系フィルム又はシート
の高周波溶着用金型を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a polyolefin-based film or sheet which is capable of producing a high-frequency welded product of a polyolefin-based film or sheet which is excellent in the appearance of the product and excellent in the tear strength of the welded portion. To provide a high-frequency welding mold.

【０００８】[0008]

【課題を解決するための手段】上記の目的を達成するた
めの本発明のポリオレフィン系フィルム又はシートの高
周波溶着用金型は、 ＜１＞ 高周波ウエルダーの一方の電極に装着してポリ
オレフィン系フィルムまたはシート同士、またはポリオ
レフィン系フィルムまたはシートと成形品との高周波溶
着に用いる金型であって、該金型の側面部にカッターが
固着され、該金型先端面に対し、前記カッター側になる
につれて傾斜すると共にその傾斜断面がＲ（アール）形
状に形成された切欠部が形成されていることを特徴とす
る。 ＜２＞ 前記に傾斜断面の傾斜角（θ）は５〜３０度で
あることが好ましい。 ＜３＞ 前記Ｒ形状は５（ｍｍ）Ｒ〜１０（ｍｍ）Ｒで
あることが好ましい。Means for Solving the Problems A high-frequency welding mold for a polyolefin-based film or sheet according to the present invention for achieving the above object is provided by: <1> a polyolefin-based film or sheet attached to one electrode of a high-frequency welder; a mold used in the high-frequency welding of sheet What happened, or a polyolefin-based film or sheet and the molded article, the cutter is fixed to the side surface portion of the mold, to mold front end face, the cutter side It is characterized in that a notch is formed which is inclined as much as possible and whose inclined cross section is formed in an R (R) shape. <2> The inclination angle (θ) of the inclined cross section is preferably 5 to 30 degrees. <3> The R shape is preferably 5 (mm) R~10 (mm) R.

【０００９】本発明においては、本発明のポリオレフィ
ン系フィルム又はシートの高周波溶着用金型は、金型の
側面部にカッターが配設され、該金型先端面に対し、前
記カッター側になるにつれて傾斜すると共にその傾斜断
面がＲ（アール）状に形成された切欠部が形成されてい
る。前記金型の先端部がフィルムまたはシート面に押圧
されるとき、金型の傾斜面の一部はフィルムまたとシー
ト内に入り込み、金型先端部による圧力の低下が少な
く、溶着部の接着強度の低下は生じない。金型の先端部
の押圧が次第が大きくなると、フィルムまたはシート面
に押圧された金型の面はＲ（アール）形状部分であっ
て、角張った部分がなく、フィルムまたはシートの溶着
部の反り返りが生じない。In the present invention, in the mold for high frequency welding of the polyolefin film or sheet of the present invention, a cutter is disposed on a side surface of the mold, and the cutter is located closer to the cutter side with respect to the tip of the mold. A notch is formed which is inclined and whose inclined cross section is formed in an R (R) shape. When the tip of the mold is pressed against the surface of the film or sheet, a part of the inclined surface of the mold enters the film or sheet, and the pressure drop by the tip of the mold is small, and the adhesive strength of the welded portion is reduced. Does not decrease. When the pressure at the tip of the mold gradually increases, the film or sheet surface
The surface of the mold pressed to the
Te, no angular portion does not occur is returned warping of the welded portion of the film or sheet.

【００１０】[0010]

【発明の実施の形態】以下、本発明の好ましい実施の形
態を説明する。図１は、本発明の金型の一実施の形態を
示す要部断面図であり、図において、１０は金型、１２
はカッターである。金型１０はその先端部は、カッター
１２側になるつれて次第に深さを増す切欠部１４が形成
されている。この切欠部１４は金型１０の先端面に対し
て、カッター１２側に傾斜する傾斜面１４Ａを有し、か
つ、この傾斜面１４Ａの断面形状は、Ｒ（アール）形状
に形成されている。DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described. FIG. 1 is a sectional view of a main part showing an embodiment of a mold of the present invention.
Is a cutter. The die 10 has a notch 14 formed at the tip thereof, which gradually increases in depth toward the cutter 12. The notch 14 has an inclined surface 14A inclined toward the cutter 12 with respect to the tip end surface of the mold 10, and the cross-sectional shape of the inclined surface 14A is formed in an R (R) shape.

【００１１】傾斜面１４Ａの傾斜角（図中、θで示す）
及びＲ（アール）形状は、溶着時の積層されたフィルム
の合計厚み、フィルムの構成によって選定されるもので
あるが、溶着時に積層されるポリオレフィン系フィルム
又はシートの合計厚みが１００μｍ〜５００μｍの場
合、傾斜角（θ）は５〜３０度が好ましく、より好まし
くは５〜１５度である。傾斜角（θ）が５度未満では
溶着部のエッジが切れる現象等が生じやすく、３０度を
超えると、溶着時にスパークの発生及びフィルムまたは
シートの剥離現象等が生じ易くなる。The angle of inclination of the inclined surface 14A (indicated by θ in the figure)
And the R (R) shape is selected according to the total thickness of the laminated film at the time of welding and the configuration of the film, and when the total thickness of the polyolefin-based film or sheet laminated at the time of welding is 100 μm to 500 μm , The inclination angle (θ) is preferably 5 to 30 degrees, more preferably 5 to 15 degrees. If the tilt angle (θ) is less than 5 degrees
The phenomenon that the edge of the welded portion is cut easily occurs, and if it exceeds 30 degrees, the occurrence of sparks and the phenomenon of peeling of the film or sheet during welding tend to occur.

【００１２】傾斜面のＲ（アール）形状は、５（ｍｍ）
Ｒ〜１０（ｍｍ）Ｒが好ましく、より好ましくは５（ｍ
ｍ）Ｒ〜８（ｍｍ）Ｒである。傾斜面のＲ（アール）形
状が５（ｍｍ）Ｒよりも小さいと、過溶着が発生し、溶
着によって形成されるケース等の全体的なバランスが欠
如しやすいなる。また、傾斜面のＲ（アール）形状が１
０（ｍｍ）Ｒよりも大きいと、樹脂ダレ現象が生じ易
く、製品の形成が不安定となり、製品の外観が劣る。金
型１０の幅(図中、Ｌで示す）は、製造される製品によ
って溶着部の幅が異なり、これらの溶着幅に対応して金
型１０の幅Ｌが決定される。The R (R) shape of the inclined surface is 5 (mm)
R to 10 (mm) R is preferable, and more preferably 5 (m)
m) R-8 (mm) R. If the R (R) shape of the inclined surface is smaller than 5 (mm) R, excessive welding occurs, and the overall balance of the case and the like formed by welding tends to be lacking. The R (R) shape of the inclined surface is 1
When it is larger than 0 (mm) R, the resin sagging phenomenon easily occurs, the formation of the product becomes unstable, and the appearance of the product is inferior. The width of the die 10 (denoted by L in the figure) differs depending on the product to be manufactured, and the width L of the die 10 is determined in accordance with the welding width.

【００１３】次に図２〜図４は、図１に示すポリオレフ
ィン系フィルム又はシート高周波溶着用金型を用いてこ
れらのフィルムまたはシートを溶着する方法を順次に説
明する。図２において、カッターを配設した金型１０と
ヒータ２０により加熱され、温度制御された下板２２と
の間にポリオレフィン系フィルム又はシート（以下、便
宜上、単にフィルムともいう）２４Ａ，２４Ｂが配置さ
れる。Next, FIGS. 2 to 4 sequentially explain a method of welding these films or sheets using the polyolefin film or sheet high-frequency welding mold shown in FIG. In FIG. 2, polyolefin-based films or sheets (hereinafter also simply referred to as films for convenience) 24A and 24B are arranged between a mold 10 provided with a cutter and a lower plate 22 heated and temperature-controlled by a heater 20. Is done.

【００１４】次に図３に示すように、カッター１２が配
設された金型１０は、図示していない駆動機構によって
下降し、金型１０と下板２２によりフィルム２４Ａ，２
４Ｂは所定の圧力に加圧され、所定の高周波出力で所定
のウエルダー時間で高周波誘電加熱して溶着される。こ
れによってフィルム２４Ａ，２４Ｂの溶着部３０が形成
されると共にカッター１２によってフィルム２４Ａ，２
４Ｂが切断される。Next, as shown in FIG. 3, the mold 10 provided with the cutter 12 is lowered by a drive mechanism (not shown), and the films 24A, 2 are moved by the mold 10 and the lower plate 22.
4B is pressurized to a predetermined pressure, and is welded by high-frequency dielectric heating with a predetermined high-frequency output for a predetermined welding time. As a result, the welded portion 30 of the films 24A, 24B is formed, and the films 24A, 24B are
4B is disconnected.

【００１５】次に図４に示すように、カッター１２が配
設された金型１０は、図示していない駆動機構によって
上昇し、金型１０と下板２２は、互いに離間し、フィル
ム２４Ａ，２４Ｂとの間に溶着部３０が形成された製品
４０が取り出される。Next, as shown in FIG. 4, the mold 10 provided with the cutter 12 is raised by a drive mechanism (not shown), the mold 10 and the lower plate 22 are separated from each other, and the films 24A, The product 40 having the welded portion 30 formed between the product 40 and the base material 24B is taken out.

【００１６】上記の実施の形態において、金型１０の傾
斜面１４ＡがＲ（アール）形状を有しているため、図３
に示す溶着時にフィルム２４Ａ，２４Ｂの溶着部３０は
傾斜面１４Ａ側に反り返る部分がなく、また、フィルム
２４Ａ，２４Ｂに対する圧力は、金型１０の先端部、す
なわち傾斜面１４ＡのＲ形状により減少する割合が少な
くと溶着部３０の接着強度が高く溶着部３０の引裂き強
度を高度に維持することができる。In the above embodiment, since the inclined surface 14A of the mold 10 has an R (R) shape, FIG.
Also no warpage return portion, during welding film 24A, the welding portion 30 of the 24B is the inclined surface 14A side illustrated in, the pressure to the film 24A, 24B is decreased, the tip portion of the die 10, i.e. the R-shape of the inclined surface 14A If the ratio is small, the adhesive strength of the welded portion 30 is high and the tear strength of the welded portion 30 can be maintained at a high level.

【００１７】上記した実施の形態においては、２枚のフ
ィルム金型１０をフィルム２４Ａ，２４Ｂを積層して溶
着する態様で示したが、図６に示したような帯部５０、
ベロ部５２及び表面部５４を構成する３枚のポリオレフ
ィンフィルムを積層した状態の場合、あるいはフィルム
またはシートが４枚以上の場合も同様である。[0017] In the above-described embodiment, two films die 10 of the film 24A, but by laminating 24B shows a manner of welding, the band part 50 as shown in FIG. 6,
The same applies to the case where three polyolefin films constituting the tongue portion 52 and the surface portion 54 are laminated, or when there are four or more films or sheets.

【００１８】本発明の金型は、高周波ウエルダーの一方
の電極に装着されるが、電極，熱保持部、金型本体の順
に一体となったものが好ましい。熱保持部は、アルミニ
ウムまたはアルミニウム合金、あるいは鋼鈑等が用いら
れる。また、金型は固定具を用いて前記電極に着脱自在
に装着できる構造が好ましい。このような構造としては
シャコ万力等が金型を固定する方法，あるいは熱保持部
にネジ穴部を設け、このネジ穴部に金型をビス留めする
方法等が好適である。The mold of the present invention is mounted on one electrode of the high-frequency welder, but it is preferable that the electrode, the heat holding section, and the mold body are integrated in this order. For the heat holding portion, aluminum, an aluminum alloy, a steel plate, or the like is used. Further, it is preferable that the mold has a structure that can be detachably attached to the electrode using a fixture. As such a structure, it is preferable to use a method in which a metal vise or the like fixes the mold, or a method in which a screw hole is provided in the heat holding unit and the mold is screwed into the screw hole.

【００１９】本発明におけるポリオレフィンとは、ポリ
エチレン、ポリプロピレン等のホモポリマーの他にポリ
オレフィン系共重合体が包含される。ポリオレフィン系
共重合体としては、エチレンとメチルメタクリレート等
のアクリレートモノマーとの共重合体が好ましい。The polyolefin in the present invention includes polyolefin copolymers in addition to homopolymers such as polyethylene and polypropylene. As the polyolefin-based copolymer, a copolymer of ethylene and an acrylate monomer such as methyl methacrylate is preferable.

【００２０】[0020]

【実施例】以下、本発明の実施例について説明するが、
本発明はこれらの実施例に限定されるものではない。 （実施例１） 図１に示す傾斜角θを５度とし、Ｒ（アール）形状を５
（ｍｍ）Ｒとした幅３ｍｍの金型を精電舎工業株式会社
製の高周波ウエルダーに装着し、２００μm厚みの太洋
プラスチック株式会社製Ｔ．Ｐ（Ｈ）シートを２枚重
ね，図２〜図４に示す方法で溶着を行った。高周波ウエ
ルダー条件は下記の通りである。 ・ 高周波出力 ４ｋＷ ・ 発信周波数 ４０．４６メガヘルツ ・ 最大陽極電流 １．２Ａ ・ 金型（彫刻型）温度 ６０℃ ・ 下板温度 ５０℃ ・ ウエルド圧力 ４９０３３２．５ｈＰａ（５
００ｋｇ／ｃｍ2） ・ ウエルド時間 ３ｓｅｃ ・ 陽極電流 ０．６Ａ 得られた製品の溶着部の剥離強度を、ＪＩＳ Ｋ ７１
２８の方法に順じて測定したところ、８０ｋｇ／ｃｍで
あった。また、溶着部の外観は良好であった。Hereinafter, embodiments of the present invention will be described.
The present invention is not limited to these examples. (Example 1) the inclination angle θ shown in FIG. 1 and 5 degrees, R a (rounded) shape 5
(Mm) A mold having a width of 3 mm and having a radius of R was mounted on a high-frequency welder manufactured by Seidensha Kogyo Co., Ltd., and T.P. Two P (H) sheets were stacked and welded by the method shown in FIGS. The high frequency welder conditions are as follows.・ High frequency output 4 kW ・ Transmission frequency 40.46 MHz ・ Maximum anode current 1.2 A ・ Mold (engraving mold) temperature 60 ℃ ・ Lower plate temperature 50 ℃ ・ Weld pressure 490332.5 hPa (5
00 kg / cm 2 ) ・ Weld time 3 sec ・ Anode current 0.6 A The peel strength of the welded portion of the obtained product was measured according to JIS K71.
It was 80 kg / cm when measured according to the method of No. 28. Further, the appearance of the welded portion was good.

【００２１】（実施例２）厚み２００μｍの太洋プラス
チック株式会社製Ｔ．Ｐ（Ｋ）シート２枚を実施例１と
同じ条件で溶着したところ、得られた製品の溶着部の剥
離強度を、ＪＩＳＫ ７１２８の方法に順じて測定した
ところ、６５ｋｇ／ｃｍであった。また、溶着部の外観
は良好であった。(Example 2) T.M. When two P (K) sheets were welded under the same conditions as in Example 1, the peel strength of the welded portion of the obtained product was measured according to the method of JIS K 7128, and was 65 kg / cm. Further, the appearance of the welded portion was good.

【００２２】（実施例３）厚み２００μｍの太洋プラス
チック株式会社製Ｔ．Ｐ（Ｈ）シート２枚を実施例１に
おける金型温度を３０℃、５０℃、７０℃とし、ウエル
ド時間をそれぞれ４秒、２秒、１秒とした他は、実施例
１とおよび条件で溶着したところ、ＪＩＳＫ ７１２８
の方法に順じて測定した剥離強度は、６０〜６５ｋｇ／
ｃｍであった。また、溶着部の外観はいずれも良好であ
った。(Example 3) T.T. The conditions were the same as in Example 1 except that the mold temperature of the two P (H) sheets in Example 1 was 30 ° C., 50 ° C., and 70 ° C., and the weld times were 4 seconds, 2 seconds, and 1 second, respectively. After welding, JISK 7128
The peel strength measured according to the method of 60 to 65 kg /
cm. The appearance of the welded portions was all good.

【００２３】（比較例１）幅２ｍｍの真鍮のローレット
を用いて２００μｍ厚みの太洋プラスチック株式会社製
Ｔ．Ｐ（Ｈ）シート２枚を重ねて、実施例１と同じウエ
ルダー条件で溶着しょうと試みたところ、溶着面がノコ
ギリ状になり、溶着部の引裂けが生じやすかった。COMPARATIVE EXAMPLE 1 A 200 μm-thick T.O. When two P (H) sheets were stacked and welded under the same weld conditions as in Example 1, the weld surface became saw-toothed and the welded portion was easily torn.

【００２４】（比較例２）幅３ｍｍの図７に示す金型を
用い、３００μｍ厚みの太洋プラスチック株式会社製
Ｔ．Ｐ（Ｈ）シートを２枚重ね、実施例１に示すウエル
ダー条件中、陽極電流及びウエルド時間の条件を変えて
溶着を試みたところ，ＪＩＳ Ｋ ７１２８の方法に順
じて剥離強度を測定したところ、６０ｋｇ／ｃｍの値が
得られたが、溶着部の外観が悪く商品に適さないもので
あった。COMPARATIVE EXAMPLE 2 A 300 μm thick T.O.M. When two P (H) sheets were stacked and welding was attempted under the welder conditions shown in Example 1 while changing the anode current and weld time conditions, the peel strength was measured according to the method of JIS K 7128. , 60 kg / cm, but the appearance of the welded portion was poor and unsuitable for products.

【００２５】（比較例３）幅３ｍｍの図８に示す金型を
用い、２００μｍ厚みの太洋プラスチック株式会社製
Ｔ．Ｐ（Ｈ）シートを２枚重ね、実施例１に示すウエル
ダー条件と同じ条件で溶着を試みた。ここで、図８にお
ける逃げ部８４の深さ（図中、Ｄで示す）は２００ｍ
ｍ、幅（図中、Ｈで示す）は１ｍｍである。その結果
は、溶着部のシートの返りが大きく、ＪＩＳ Ｋ ７１
２８の方法に順じて測定した剥離強度は、２０ｋｇ／ｃ
ｍの値しか得られなった。COMPARATIVE EXAMPLE 3 A 200 μm thick T.I. Two P (H) sheets were stacked and welding was attempted under the same welding conditions as in Example 1. Here, the depth of the escape portion 84 in FIG.
m and the width (indicated by H in the figure) are 1 mm. As a result, the return of the sheet at the welded portion was large, and JIS K71
The peel strength measured according to the method of No. 28 is 20 kg / c
Only the value of m was obtained.

【００２６】[0026]

【発明の効果】以上のように本発明のポリオレフィン系
フィルム又はシートの高周波溶着用金型は、金型の側面
部にカッターが配設され、該金型先端面に対し、前記カ
ッター側になるにつれて傾斜すると共にその傾斜断面が
Ｒ（アール）状に形成された切欠部が形成されているの
で、溶着時にフィルムまたはシートの溶着部は傾斜面側
に反り返る部分がなく製品の外観に優れ、かつ、フィル
ムまたはシートに対する圧力は、金型の先端部、すなわ
ち傾斜面のＲ（アール）形状により減少する割合が少な
く、溶着部の接着強度が高く溶着部の引裂き強度を高度
に維持することができる。As described above, in the mold for high frequency welding of a polyolefin film or sheet according to the present invention, a cutter is disposed on the side surface of the mold, and the cutter is located on the cutter side with respect to the tip surface of the mold. since notch the inclined section is formed in the R (rounded) shape with inclined As the is formed, welded portions of the film or sheet at the time of welding is excellent in appearance of the product without warpage return portion on the inclined surface side, In addition, the pressure on the film or sheet is less likely to decrease due to the R (R) shape of the tip of the mold, that is, the inclined surface, so that the adhesive strength of the welded portion is high and the tear strength of the welded portion is maintained at a high level. it can.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明のポリオレフィン系フィルム又はシート
の高周波溶着用金型の好ましい一実施の形態を示す要部
断面図である。FIG. 1 is a cross-sectional view of a main part showing a preferred embodiment of a high-frequency welding mold for a polyolefin film or sheet of the present invention.

【図２】図１に示す金型を用いて高周波溶着の第一の工
程を示す説明図である。FIG. 2 is an explanatory view showing a first step of high-frequency welding using the mold shown in FIG. 1;

【図３】図１に示す金型を用いて高周波溶着の第二の工
程を示す説明図である。FIG. 3 is an explanatory view showing a second step of high-frequency welding using the mold shown in FIG. 1;

【図４】図１に示す金型を用いて高周波溶着の第三の工
程を示す説明図である。FIG. 4 is an explanatory view showing a third step of high-frequency welding using the mold shown in FIG. 1;

【図５】本発明の金型を用いて製造される成形品の一例
を示す説明図である。FIG. 5 is an explanatory diagram showing an example of a molded product manufactured using the mold of the present invention.

【図６】図５の成形品の要部側面図である。FIG. 6 is a side view of a main part of the molded product of FIG. 5;

【図７】従来のポリオレフィン系フィルム又はシートの
高周波溶着用金型の一例を示す要部断面図である。FIG. 7 is a cross-sectional view of an essential part showing an example of a conventional die for high frequency welding of a polyolefin-based film or sheet.

【図８】従来のポリオレフィン系フィルム又はシートの
高周波溶着用金型の他の例を示す要部断面図である。FIG. 8 is a cross-sectional view of a relevant part showing another example of a conventional die for high frequency welding of a polyolefin-based film or sheet.

【符号の説明】[Explanation of symbols]

１０ 金型 １２ カッター １４ 切欠部 １４Ａ 傾斜面 ２０ ヒーター ２２ 下板 ２４Ａ，Ｂ フィルム DESCRIPTION OF SYMBOLS 10 Die 12 Cutter 14 Notch 14A Slope 20 Heater 22 Lower plate 24A, B Film

───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) B29C 65/00 - 65/82 B65B 51/10 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. 7 , DB name) B29C 65/00-65/82 B65B 51/10

Claims (3)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】 高周波ウエルダーの一方の電極に装着し
てポリオレフィン系フィルムまたはシート同士、または
ポリオレフィン系フィルムまたはシートと成形品との高
周波溶着に用いる金型であって、該金型の側面部にカッ
ターが配設され、該金型先端面に対し、前記カッター側
になるにつれて傾斜すると共にその傾斜断面がＲ（アー
ル）形状に形成された切欠部が形成されていることを特
徴とするポリオレフィン系フィルム又はシートの高周波
溶着用金型。1. A mold which is attached to one electrode of a high-frequency welder and used for high-frequency welding between polyolefin-based films or sheets or between a polyolefin-based film or sheet and a molded product, wherein the mold is provided on a side surface of the mold. A cutter is disposed, and is inclined toward the cutter side with respect to the front end surface of the mold, and the inclined cross section is R (Ar).
(1) A high-frequency welding mold for a polyolefin-based film or sheet, wherein a notch formed in a shape is formed. 【請求項２】 前記傾斜断面の傾斜角（θ）が５〜３０
度であることを特徴とする請求項１に記載のポリオレフ
ィン系フィルム又はシートの高周波溶着用金型。2. An inclination angle (θ) of the inclined section is 5 to 30.
The high-frequency welding mold for a polyolefin-based film or sheet according to claim 1, wherein: 【請求項３】 前記Ｒ形状が５（ｍｍ）Ｒ〜１０（ｍ
ｍ）Ｒであることを特徴とする請求項１または請求項２
に記載のポリオレフィン系フィルム又はシートの高周波
溶着用金型。3. The R shape is 5 (mm) R to 10 (m )
m) R. 3. The method according to claim 1, wherein
2. A high-frequency welding mold for the polyolefin film or sheet according to item 1.
JP32460199A 1999-11-15 1999-11-15 High frequency welding mold for polyolefin film or sheet Expired - Fee Related JP3291280B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP32460199A JP3291280B2 (en) 1999-11-15 1999-11-15 High frequency welding mold for polyolefin film or sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP32460199A JP3291280B2 (en) 1999-11-15 1999-11-15 High frequency welding mold for polyolefin film or sheet

Publications (2)

Publication Number Publication Date
JP2001138401A JP2001138401A (en) 2001-05-22
JP3291280B2 true JP3291280B2 (en) 2002-06-10

Family

ID=18167651

Family Applications (1)

Application Number Title Priority Date Filing Date
JP32460199A Expired - Fee Related JP3291280B2 (en) 1999-11-15 1999-11-15 High frequency welding mold for polyolefin film or sheet

Country Status (1)

Country Link
JP (1) JP3291280B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200450134Y1 (en) * 2010-04-13 2010-09-07 황인용 Liquid packing machine
CN109890598A (en) * 2016-10-20 2019-06-14 巴克斯特国际公司 Sealed mold with Chamfer Edge

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2224790B1 (en) * 2002-06-05 2006-06-01 Xavier Miret Gayet CLOSURE MATERIAL CONTAINER CLOSURE DEVICE.
CN103286945B (en) * 2013-05-17 2016-05-11 刘炜舜 The welder that a kind of welding effect is good

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200450134Y1 (en) * 2010-04-13 2010-09-07 황인용 Liquid packing machine
CN109890598A (en) * 2016-10-20 2019-06-14 巴克斯特国际公司 Sealed mold with Chamfer Edge
US10513079B2 (en) 2016-10-20 2019-12-24 Baxter International Inc. Sealing die with chamfered edge
CN109890598B (en) * 2016-10-20 2021-08-24 巴克斯特国际公司 Sealing die with chamfer edge

Also Published As

Publication number Publication date
JP2001138401A (en) 2001-05-22

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