JPH0450178B2 - - Google Patents
Info
- Publication number
- JPH0450178B2 JPH0450178B2 JP7622787A JP7622787A JPH0450178B2 JP H0450178 B2 JPH0450178 B2 JP H0450178B2 JP 7622787 A JP7622787 A JP 7622787A JP 7622787 A JP7622787 A JP 7622787A JP H0450178 B2 JPH0450178 B2 JP H0450178B2
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- mold
- temperature
- resin
- cut
- 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 - Lifetime
Links
- 239000011347 resin Substances 0.000 claims abstract description 19
- 229920005989 resin Polymers 0.000 claims abstract description 19
- 238000003466 welding Methods 0.000 claims abstract description 12
- 238000010438 heat treatment Methods 0.000 claims description 4
- -1 polyethylene Polymers 0.000 abstract description 20
- 239000004698 Polyethylene Substances 0.000 abstract description 12
- 229920000573 polyethylene Polymers 0.000 abstract description 12
- 239000004743 Polypropylene Substances 0.000 abstract description 8
- 229920001155 polypropylene Polymers 0.000 abstract description 8
- 230000004927 fusion Effects 0.000 abstract 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 241000220317 Rosa Species 0.000 description 1
- 229920003020 cross-linked polyethylene Polymers 0.000 description 1
- 239000004703 cross-linked polyethylene Substances 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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
- 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
- B29C65/02—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
- B29C65/72—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
- B29C66/70—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
- B29C66/737—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 state of the material of the parts to be joined
- B29C66/7371—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 state of the material of the parts to be joined oriented or heat-shrinkable
-
- 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
- B29C66/83—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
- B29C66/90—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
- B29C66/9141—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 temperature
- B29C66/91421—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 temperature of the joining 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
- 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
- B29C66/91—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
- B29C66/9192—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 in explicit relation to another variable, e.g. temperature diagrams
-
- 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
- B29C66/70—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
- B29C66/737—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 state of the material of the parts to be joined
- B29C66/7371—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 state of the material of the parts to be joined oriented or heat-shrinkable
- B29C66/73711—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 state of the material of the parts to be joined oriented or heat-shrinkable oriented
-
- 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
- B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
- B29C66/929—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools characterized by specific pressure, force, mechanical power or displacement 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
- B29C66/94—Measuring or controlling the joining process by measuring or controlling the time
- B29C66/949—Measuring or controlling the joining process by measuring or controlling the time characterised by specific time 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
- B29C66/95—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94
- B29C66/959—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 characterised by specific values or ranges of said specific variables
- B29C66/9592—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 characterised by specific values or ranges of said specific variables in explicit relation to another variable, e.g. X-Y diagrams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/10—Polymers of propylene
- B29K2023/12—PP, i.e. polypropylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0037—Other properties
- B29K2995/005—Oriented
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はシート状の樹脂の溶着・溶断に用いら
れる高周波ウエルダの改良に関し、特に誘電損の
小さい樹脂を溶着・溶断するのに適したものであ
る。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an improvement of a high-frequency welder used for welding and cutting sheet-shaped resins, and is particularly suitable for welding and cutting resins with small dielectric loss. It is.
近年、樹脂の多機能化が要求されるのに対応し
て種々の物性を有するフイルムが市場に進出して
いる。従来、樹脂フイルムの溶着・溶断は主に高
周波ウエルダやヒートシーラーを用いて行なわれ
ている。
In recent years, in response to the demand for multifunctional resins, films having various physical properties have entered the market. Conventionally, welding and fusing of resin films has mainly been carried out using a high frequency welder or a heat sealer.
従来の高周波ウエルダは、ポリ塩化ビニル等の
比較的誘電損の高い樹脂フイルムの溶着・溶断に
用いられているが、誘電損の低いポリエチレンや
ポリプロピレンの溶着・溶断を行なうことができ
なかつた。これに対して、ヒートシーラーによる
ポリエチレンやポリプロピレンのフイルム包装に
行なわれている。しかし、例えば架橋処理された
ポリエチレンやポリプロピレンの溶着・溶断は不
可能であつた。また、延伸処理されたフイルムを
ヒートシーラーで溶着しようとすると、熱収縮す
るため、包装等には使用できないという問題があ
つた。
Conventional high-frequency welders have been used to weld and cut resin films such as polyvinyl chloride that have a relatively high dielectric loss, but have not been able to weld and cut polyethylene and polypropylene that have a low dielectric loss. On the other hand, a heat sealer is used for packaging polyethylene and polypropylene films. However, for example, it has been impossible to weld or fuse crosslinked polyethylene or polypropylene. Further, when trying to weld the stretched film with a heat sealer, it shrinks due to heat, so there was a problem that it could not be used for packaging or the like.
本発明は上記問題点を解決するためになされた
ものであり、ポリエチレンやポリプロピレン、延
伸処理したフイルムでも溶着・溶断が可能な高周
波ウエルダを提供することを目的とする。 The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a high-frequency welder capable of welding and cutting even polyethylene, polypropylene, and stretched films.
本発明の高周波ウエルダは、１対の電極間にシ
ート状の樹脂をはさみ、高周波を印加して上記シ
ート状の樹脂を溶着・溶断する高周波ウエルダに
おいて、上記電極の加熱する手段を設けたことを
特徴とするものである。
The high-frequency welder of the present invention sandwiches a sheet-like resin between a pair of electrodes and applies high-frequency waves to weld and melt the sheet-like resin, and is provided with means for heating the electrodes. This is a characteristic feature.
なお、本発明において、電極を加熱する手段は
１対の電極のうち一方だけ又は両方の電極に設け
ることができるが、取付けの容易な上部電極側に
設けることが望ましい。 In the present invention, the means for heating the electrodes can be provided on only one or both of the pair of electrodes, but it is preferable to provide the means on the upper electrode side because it can be easily attached.
また、電極の温度は65〜110℃に設定すること
が望ましい。 Further, it is desirable to set the temperature of the electrode to 65 to 110°C.
本発明の高周波ウエルダによれば、電極の加熱
する手段を設けたことにより、従来の同じ電圧を
印加し高周波の周波数が同一であつたとしても、
電極からの電子放射量を増大させることができ、
電流の増大により出力を増大させることができ
る。このため、誘電損の低いポリエチレンやポリ
プロピレン、あるいは延伸処理したフイルムでも
効果的に加熱することができ、従来の高周波ウエ
ルダやヒートシーラーでは不可能であつた溶着・
溶断が行なえるようになる。
According to the high frequency welder of the present invention, by providing a means for heating the electrode, even if the same voltage as the conventional one is applied and the frequency of the high frequency is the same,
The amount of electron emission from the electrode can be increased,
The output can be increased by increasing the current. Therefore, it is possible to effectively heat polyethylene, polypropylene, or stretched film with low dielectric loss, and welding and welding, which was impossible with conventional high-frequency welders and heat sealers, is possible.
Becomes able to perform fusing.
本発明において、電極（金型）の温度として適
当な範囲は、65℃〜電極（金型）に樹脂が部分的
に融着して変形等が生じる直前の温度まである。
これは、電極の温度が65℃未満であると、電極に
印加するで電圧を高くしても、樹脂の溶着が困難
になるためである。なお、接着強度の観点から
は、電極の温度は80℃以上であることがより望ま
しい。また、電極の上限温度は、例えばポリエチ
レンの場合95℃、ポリプロピレンの場合は110℃
とすることが望ましい。 In the present invention, an appropriate temperature range for the electrode (mold) is from 65° C. to a temperature just before the resin partially fuses to the electrode (mold) and causes deformation.
This is because if the temperature of the electrode is less than 65° C., it becomes difficult to weld the resin even if the voltage applied to the electrode is increased. Note that from the viewpoint of adhesive strength, it is more desirable that the temperature of the electrode be 80° C. or higher. In addition, the upper limit temperature of the electrode is, for example, 95℃ for polyethylene and 110℃ for polypropylene.
It is desirable to do so.
なお、上述したような電極からの電子線放射量
の増大は、電極に印加する電圧を高くすることに
よつても達成できる可能性もあると予想される。
しかし、電圧を高くすると電極からの放電が起る
ため、溶着・溶断が不可能になる。 Note that it is expected that the increase in the amount of electron beam radiation from the electrodes as described above may also be achieved by increasing the voltage applied to the electrodes.
However, when the voltage is increased, discharge occurs from the electrodes, making welding and fusing impossible.
以下、本発明の実施例を図面を参照して説明す
る。
Embodiments of the present invention will be described below with reference to the drawings.
第１図は本発明に係る高周波ウエルダの概略構
成図である。第１図において、高圧電源１にはチ
ヨークコイル２を直列に介して、発振器３及び上
部電極７と下部電極８とからなる１対の電極がそ
れぞれ並列に接続されている。上記発振器は、発
振用真空管４のアノードーカソード間に、コンデ
ンサ５及びチヨークコイル６の直列回路を接続し
たものである。上記下部電極８は作業台９に一体
的に固定されており、これらの上面に溶着・溶断
されるべきフイルム状の樹脂１０が重ねられて載
置される。一方、上記上部電極７の下端には、金
型電極１１が上記樹脂１０と対向するように取付
けられている。更に、この金型電極１１には抵抗
ヒータを有する加熱器１２が取付けられている。 FIG. 1 is a schematic configuration diagram of a high frequency welder according to the present invention. In FIG. 1, an oscillator 3 and a pair of electrodes consisting of an upper electrode 7 and a lower electrode 8 are connected in parallel to a high-voltage power source 1 via a chiyoke coil 2 in series. The above oscillator has a series circuit of a capacitor 5 and a chiyoke coil 6 connected between an anode and a cathode of an oscillation vacuum tube 4. The lower electrode 8 is integrally fixed to a workbench 9, and a film-like resin 10 to be welded and cut is placed on top of the lower electrode 8 in an overlapping manner. On the other hand, a mold electrode 11 is attached to the lower end of the upper electrode 7 so as to face the resin 10 . Furthermore, a heater 12 having a resistance heater is attached to the mold electrode 11.
上記実施例において用いられた高圧電源１はト
ランスにより200Vの３相交流を昇圧して最大
12kVの交流電流電圧を生成するものである。ま
た、発振器３が発生する高周波の周波数は
27.12MHz近傍である。そして、出力は最大
6.0kwまで上昇させることできる。 The high-voltage power supply 1 used in the above embodiment boosts 200V three-phase AC using a transformer to reach maximum
It generates an alternating current voltage of 12kV. Also, the frequency of the high frequency generated by oscillator 3 is
It is around 27.12MHz. and the output is max
It can be increased up to 6.0kw.
実際に、上記高周波ウエルダを用い、下部電極
８上に厚み280μｍのポリエチレンフイルム２枚
を載置し、上部電極７を押しつけポリエチレンフ
イルムの中央部を直線状に１mm幅で接着するとい
う実験を行なつた。この実験では、加熱器１２に
より金型電極１１の温度を変化させ、出力及び溶
着時間は3.2kw、４秒：4.1kw、５秒の２つの条
件にそれぞれ固定した。そして、接着された２枚
のポリエチレンシートの一端を上下に引張り、両
者が剥離したときの荷重を調べた。これらの結果
を第２図及び第３図に示す。 Actually, using the above-mentioned high frequency welder, we conducted an experiment in which two sheets of polyethylene film with a thickness of 280 μm were placed on the lower electrode 8, and the upper electrode 7 was pressed to adhere the central part of the polyethylene film in a straight line with a width of 1 mm. Ta. In this experiment, the temperature of the mold electrode 11 was changed using the heater 12, and the output and welding time were fixed at two conditions: 3.2 kw, 4 seconds: 4.1 kw, and 5 seconds. Then, one end of the two adhered polyethylene sheets was pulled up and down, and the load when both were peeled off was examined. These results are shown in FIGS. 2 and 3.
第２図及び第３図から明らかなように、金型電
極１１の温度が60℃では出力が3.2kwでも、
4.1kwでも溶着ができなかつたが、65℃以上で接
着可能となり金型電極１１の温度が高くなるほど
接着強度が向上している。ただし、金型電極１１
の温度が95℃を越えると、樹脂が部分的に金型電
極１１に融着し、フイルルの変形が生じた。な
お、出力の大きさにかかわらず、金型電極１１の
温度と接着強度との関係はほぼ同様な傾向を示
す。ただし、出力が3.0kw未満になると、接着可
能な下限温度が高くなる傾向が認められたので、
出力は3.0kw以上に設定することが望ましい。 As is clear from FIGS. 2 and 3, when the temperature of the mold electrode 11 is 60°C, even if the output is 3.2kw,
Although welding was not possible even at 4.1 kW, it became possible to bond at 65° C. or higher, and the bonding strength improved as the temperature of the mold electrode 11 rose. However, the mold electrode 11
When the temperature exceeded 95°C, the resin was partially fused to the mold electrode 11, causing deformation of the film. Note that, regardless of the magnitude of the output, the relationship between the temperature of the mold electrode 11 and the adhesive strength shows almost the same tendency. However, it was observed that when the output was less than 3.0kw, the lower limit temperature for bonding tended to increase.
It is desirable to set the output to 3.0kw or more.
比較のために、金型電極１１の加熱を行なわな
かつた以外は、上記実施例と同様にしてポリエチ
レンフイルムの溶着を行なおうとしたが、溶着で
きなかつた。 For comparison, an attempt was made to weld a polyethylene film in the same manner as in the above embodiment except that the mold electrode 11 was not heated, but welding was not possible.
以上詳述したように本発明の高周波ウエルダに
よれば、ポリエチレンやポリプロピレン、延伸処
理したフイルムでも溶着・溶断が可能になる等工
業極めて顕著な効果を奏するものである。
As described in detail above, the high frequency welder of the present invention has extremely remarkable industrial effects, such as being able to weld and cut even polyethylene, polypropylene, and stretched films.
第１図は本発明の実施例における高周波ウエル
ダの概略構成図、第２図及び第３図はそれぞれ同
高周波ウエルダを用いてポリエチレンフイルムを
接着した場合の、金型電極の温度と接着強度との
関係を示す特性図である。
１……高圧電源、２……チヨークコイル、３…
…発振器、４……発振用真空管、５……コンデン
サ、６……チヨークコイル、７……上部電極、８
……下部電極、９……作業台、１０……樹脂、１
１……金型電極、１２……加熱器。
FIG. 1 is a schematic diagram of a high-frequency welder according to an embodiment of the present invention, and FIGS. 2 and 3 show the relationship between mold electrode temperature and adhesive strength when polyethylene film is bonded using the same high-frequency welder. It is a characteristic diagram showing a relationship. 1...High voltage power supply, 2...Chiyoke coil, 3...
...Oscillator, 4...Vacuum tube for oscillation, 5...Capacitor, 6...Chiyoke coil, 7...Upper electrode, 8
... lower electrode, 9 ... workbench, 10 ... resin, 1
1... Mold electrode, 12... Heater.
Claims (1)
周波を印加して上記シート状の樹脂を溶着・溶断
する高周波ウエルダにおいて、上記電極を加熱す
る手段を設けたことを特徴とする高周波ウエル
ダ。 ２ 電極の温度を65〜110℃とすることを特徴と
する特許請求の範囲第１項記載の高周波ウエル
ダ。[Claims] 1. A high-frequency welder in which a sheet-like resin is sandwiched between a pair of electrodes and a high-frequency wave is applied to weld and melt the sheet-like resin, which is provided with means for heating the electrodes. Features high frequency welding. 2. The high frequency welder according to claim 1, wherein the temperature of the electrode is 65 to 110°C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62076227A JPS63242627A (en) | 1987-03-31 | 1987-03-31 | High-frequency welder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62076227A JPS63242627A (en) | 1987-03-31 | 1987-03-31 | High-frequency welder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63242627A JPS63242627A (en) | 1988-10-07 |
| JPH0450178B2 true JPH0450178B2 (en) | 1992-08-13 |
Family
ID=13599283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62076227A Granted JPS63242627A (en) | 1987-03-31 | 1987-03-31 | High-frequency welder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63242627A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2782415B2 (en) * | 1994-08-12 | 1998-07-30 | 株式会社ピアレス | Bonding of plastics by high frequency dielectric heating |
| US5538581A (en) * | 1995-02-02 | 1996-07-23 | Davidson Textron Inc. | Method for electromagnetically welding thermoplastic articles together |
| JPH11268134A (en) * | 1998-03-25 | 1999-10-05 | Idemitsu Petrochem Co Ltd | Fusion processing of polyolefinic resin and fusion processed product |
| JP5413848B2 (en) * | 2009-07-31 | 2014-02-12 | ヤマトミシン製造株式会社 | High frequency sewing machine |
| JP5626719B2 (en) * | 2010-03-08 | 2014-11-19 | ヤマトミシン製造株式会社 | High frequency sewing machine |
-
1987
- 1987-03-31 JP JP62076227A patent/JPS63242627A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63242627A (en) | 1988-10-07 |
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