JP3242386B2 - Electrode for heat fusion of molded article molded with thermoplastic resin - Google Patents
Electrode for heat fusion of molded article molded with thermoplastic resinInfo
- Publication number
- JP3242386B2 JP3242386B2 JP28575599A JP28575599A JP3242386B2 JP 3242386 B2 JP3242386 B2 JP 3242386B2 JP 28575599 A JP28575599 A JP 28575599A JP 28575599 A JP28575599 A JP 28575599A JP 3242386 B2 JP3242386 B2 JP 3242386B2
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- heat
- power receiving
- resistance heating
- heating element
- 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
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
- B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
- B29C65/3468—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the means for supplying heat to said heated elements which remain in the join, e.g. special electrical connectors of windings
-
- 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
- B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
- B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
- B29C65/342—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding
- B29C65/3432—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding comprising several wires, e.g. in the form of several independent windings
-
- 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
- B29C66/004—Preventing sticking together, e.g. of some areas of the parts to be joined
- B29C66/0042—Preventing sticking together, e.g. of some areas of the parts to be joined of the joining tool and 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
- B29C66/01—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
- B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
- B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
- B29C66/1312—Single flange to flange joints, the parts to be joined being rigid
-
- 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
- B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
- B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
- B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
- B29C66/2424—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain
- B29C66/24243—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain forming a quadrilateral
- B29C66/24244—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain forming a quadrilateral forming a rectangle
-
- 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
- B29C66/345—Progressively making the joint, e.g. starting from the middle
- B29C66/3452—Making complete joints by combining partial 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
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/349—Cooling the welding zone on the welding spot
- B29C66/3494—Cooling the welding zone on the welding spot while keeping the welding zone under pressure
-
- 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
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular 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
- B29C66/739—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 material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7392—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 material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
- B29C66/73921—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 material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
-
- 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
- B29C66/81419—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 and flat
-
- 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
- B29C66/81427—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 comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
- B29C66/81429—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 comprising a single ridge, e.g. for making a weakening line; comprising a single tooth comprising a single tooth
-
- 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
- B29C66/81431—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 comprising a single cavity, e.g. a groove
-
- 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
- B29C66/818—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 cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
- B29C66/8181—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 cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、熱可塑性樹脂で成
形された成形部品の融着面間に抵抗発熱体を挟み込み、
この抵抗発熱体に電圧を印加することにより発熱させ、
この発熱で融着面の樹脂を溶融して成形品同士を相互に
熱融着させる熱融着用電極に関する。BACKGROUND OF THE INVENTION The present invention relates to a resistance heating element sandwiched between fused surfaces of a molded part formed of a thermoplastic resin.
Heat is generated by applying a voltage to this resistance heating element,
The molded article together by melting the resin fusing surface in the heating Thermal fusing electrode for heat sealing to each other.
【０００２】[0002]
【従来の技術】熱可塑性樹脂で成形されたお互いの成形
品を接合する方法の一つとして、その融着部に電気抵抗
に基ずく発熱体（以下「抵抗発熱体」と称する）を挟み
込み、成形品を適宜な力で加圧しながら前記抵抗発熱体
に電圧を印加して発熱させ、その熱で融着部の樹脂を溶
融させる。その後、電圧の印加を止めて冷却することに
より溶融した樹脂を硬化させ、成形品同士を融着させる
熱融着方法が公知である（特開昭５３−９６０７８
号）。2. Description of the Related Art As one method of joining molded articles formed of a thermoplastic resin to each other, a heating element based on electric resistance (hereinafter referred to as a "resistance heating element") is sandwiched in a fused portion thereof. A voltage is applied to the resistance heating element while applying pressure to the molded article with an appropriate force to generate heat, and the heat melts the resin in the fused portion. Thereafter, a heat fusion method is known in which the application of voltage is stopped, the molten resin is cured by cooling, and the molded products are fused together (Japanese Patent Application Laid-Open No. 53-96078).
issue).
【０００３】この方法は、瞬間的な熱による接合方法で
あるため、内部部品や外観上に何等影響を与えることな
く、設備も簡単な装置で可能であることから、実用的に
は極めて有効な接合方法である。[0003] This method is a bonding method using instantaneous heat, so that it is possible to use simple equipment without affecting the internal parts and appearance, so that it is practically extremely effective. It is a joining method.
【０００４】このような特徴を有する熱融着方法におい
て、抵抗発熱体に電圧を印加する方法としては、成形品
から抵抗発熱体を引き出して受電部を形成し、この受電
部に熱融着用電極を突き当てて行う方法が一般的であ
る。[0004] In the heat fusion method having the above characteristics, as a method of applying a voltage to the resistance heating element, the resistance heating element is pulled out from a molded product to form a power receiving portion, and the heat receiving electrode is attached to the power receiving portion. Is generally performed.
【０００５】[0005]
【発明が解決しようとする課題】抵抗発熱体の受電部に
棒状である熱融着用電極を突き当てる場合、適度な荷重
を熱融着用電極にかけて受電部に押し付けることにより
熱融着用電極と受電部の接触を確保することになる。例
えば、本発明者が製作した熱融着機の場合、３Ｎ／ｍｍ
2の荷重を熱融着用電極にかけている。In the case where a rod-shaped heat welding electrode is brought into contact with the power receiving portion of the resistance heating element, an appropriate load is applied to the heat welding electrode and pressed against the power receiving portion, whereby the heat welding electrode and the power receiving portion are pressed. Contact will be secured. For example, in the case of a heat fusion machine manufactured by the present inventors, 3 N / mm
A load of 2 is applied to the electrode for heat fusion.
【０００６】しかし、受電部は、成形品の外に引き出さ
れているため、受け部が無いことが多く、熱融着用電極
からの荷重で変形し、さらに、発熱することにより抵抗
発熱体は軟化するため、より一層変形する確率が高くな
る。変形が進むと熱融着用電極と受電部の接触が不安定
になり最悪の場合離れてしまうこともある。この結果、
通電が途切れたりして発熱が安定せず、満足な熱融着製
品が得られない場合がある。そのため、従来法では、電
極荷重を微妙に調整する必要があり、この管理が大変で
ある。更に、溶融した樹脂が熱融着用電極に付着する場
合があり、このように熱融着用電極の当接面に樹脂が付
着すると受電部との接触に悪影響が発生してトラブルの
基になる。However, since the power receiving portion is drawn out of the molded product, the power receiving portion often has no receiving portion, and is deformed by the load from the electrode for heat fusion, and further generates heat, so that the resistance heating element is softened. Therefore, the probability of further deformation increases. As the deformation progresses, the contact between the heat-sealing electrode and the power receiving unit becomes unstable, and in the worst case, the electrode may be separated. As a result,
Heat generation may not be stable due to interruption of power supply, and a satisfactory heat-sealed product may not be obtained. Therefore, in the conventional method, it is necessary to finely adjust the electrode load, and this management is difficult. Further, the molten resin may adhere to the heat-sealing electrode, and if the resin adheres to the contact surface of the heat-sealing electrode in this way, the contact with the power receiving unit is adversely affected and causes trouble.
【０００７】本発明の目的は、熱溶着用電極の荷重に気
を使わなくても熱溶着用電極と抵抗発熱体の受電部との
接触が安定し、併せて溶融した樹脂が電極に付着するこ
とがないように工夫した熱融着用電極を提供することで
ある。An object of the present invention is to stabilize the contact between the electrode for heat welding and the power receiving portion of the resistance heating element without paying attention to the load on the electrode for heat welding, and at the same time, the molten resin adheres to the electrode. This
An object of the present invention is to provide a heat-sealing electrode that is devised so as not to be out of order.
【０００８】[0008]
【課題を解決するための手段】上記目的を達成するた
め、請求項１に記載の発明においては、熱可塑性樹脂で
成形された成形品の熱融着用電極において、熱可塑性樹
脂で成形された成形品の 融着面に抵抗発熱体を挟み込
み、前記抵抗発熱体の受電部を一対の融着用電極で上下
方向から挟持しながら前記受電部に電圧を印加する棒状
熱融着用電極であって、上側の熱融着用電極には軸方向
に貫通した通気孔が設けられていると共に、この通気孔
は熱融着用電極が受電部に接する当接面に開口している
こと、前記熱融着用電極の双方の側面であって、前記抵
抗発熱体側に面した部分には、前記電極の当接面に向け
て斜めに切り欠いた傾斜面が形成されていること、を特
徴とするものである。 In order to achieve the above object, according to the first aspect of the present invention, a thermoplastic resin is used.
In the electrode for heat fusion of the molded article, the thermoplastic resin
A resistance heating element is sandwiched between the fused surfaces of molded products molded with grease
And the power receiving part of the resistance heating element is vertically moved by a pair of fusing electrodes.
A rod shape that applies voltage to the power receiving unit while sandwiching it from the direction
A heat-fusion electrode, with the upper heat-fusion electrode in the axial direction
Is provided with a vent hole, and the vent hole
Has an opening on the contact surface where the heat welding electrode contacts the power receiving part
The two sides of the heat-sealing electrode,
The part facing the anti-heating element side faces the contact surface of the electrode.
That an inclined surface that is notched diagonally is formed.
It is a sign.
【０００９】[0009]
【作用】請求項１の発明によれば、抵抗発熱体の受電部
を例えば上下方向の２方向から棒状の融着用電極を用い
て同圧で挟むことにより、受電部が変形したりすること
がないと共に熱融着用電極の接触を確実にすることがで
きる。したがって、熱融着時、外部より力が加わっても
電気的な接触不良を起こすことがなくなる。 According to the first aspect of the present invention, the power receiving portion of the resistance heating element can be deformed by sandwiching the power receiving portion at the same pressure using, for example, a bar-shaped welding electrode from two directions in the vertical direction. In addition, the contact of the electrode for heat fusion can be ensured. Therefore, at the time of heat fusion, even if a force is applied from the outside, electrical contact failure does not occur .
【００１０】また、請求項１の発明によれば、電圧印加
時に上側の電極に設けた通気孔の噴射孔から冷却用気体
を受電部に吹きかけることにより、受電部が接触抵抗の
増大により異常に温度上昇し、この周辺の樹脂が異常に
溶融することを防ぐことができる。 [0010] According to the present invention, by spraying from the injection hole of the vent hole provided on the upper side of the electrode cooling gas to the power receiving unit during voltage application, the power receiving unit is abnormal due to an increase in contact resistance And the surrounding resin can be prevented from melting abnormally.
【００１１】また、請求項１の発明によれば、通常抵抗
発熱体が発熱すると抵抗発熱体が成形品の外へ引き出さ
れているため、溶融した樹脂が漏れ出す現象がおきる。
また、熱融着用電極と成形品外面との間隔はあまりない
のが普通で、そのため、熱融着用電極に溶融した樹脂が
付着し、その原因で接触不良を起こす場合が多い。本請
求項１では、棒状の熱融着用電極において、双方の側面
を当接面に向けて大きくなるように斜めに切り欠いた傾
斜面（逃げ面）を設け、この傾斜面を成形品側に向けて
熱溶着を行うことにより、溶融した樹脂が洩れだしても
付着せず、万一付着しても容易に離脱することが可能に
なり、熱融着用電極と受電部の接触性を向上させること
ができる。 [0011] According to the present invention, since the normal resistance heating element is a resistance heating element and generates heat is drawn out of the molded article, occurs a phenomenon that leakage of molten resin.
Further, the gap between the electrode for heat welding and the outer surface of the molded product is usually not so large, so that the melted resin adheres to the electrode for heat fusion, which often causes poor contact. In the claims 1, in heat wearing electrode rod-shaped, inclined surface formed by cutting the side of the bi-lateral oblique so as to increase toward the abutment surface (flank) provided, moldings side inclined surface The molten resin does not adhere even if it leaks out, and can easily be detached even if it adheres, improving the contact between the electrode for heat welding and the power receiving part. Can be done.
【００１２】以上説明した熱融着用電極にて一体化され
た成形品は、修理や廃棄するため分別が必要になった
時、再度熱融着用電極を抵抗発熱体の受電部へ当接して
電圧を印加し、再発熱させることにより、融着した部分
を再溶融して個別の成形品に分離することが容易に可能
である。[0012] The above-described heat - integrated molded article by wearing electrodes, repairs or when separation is required for disposal, contact with the voltage again heat worn electrode to the power receiving portion of the resistance heating element Is applied to generate heat again, so that the fused portion can be easily re-melted and separated into individual molded products.
【００１３】[0013]
【発明の実施の形態】本発明に用いる融着用電極の材料
は、導電性が高い切削加工性の優れたものであれば良
く、例えば銅、真鍮、鉄、アルミなどが代表例としてあ
げられる。更に、熱融着する成形品の材料は、熱可塑性
樹脂の中でも、ＡＢＳ樹脂（ＡＢＳ）、ポリアセタール
（ＰＯＭ）、メタクリル樹脂（ＰＭＭＡ）、ポリアミド
（ＰＡ）、ポリカーボネート（ＰＣ）、ポニフェニレン
サルファイド（ＰＰＳ）、ポリプロピレン（ＰＰ）、ポ
リスチレン（ＰＳ）、ポリ塩化ビニル（ＰＶＣ）、ポリ
ブチレンテレフタレート（ＰＢＴ）、ＡＳ樹脂（ＡＳ）
などが代表例としてあげられさらにそのアロイ等も可能
である。以下、各図に基づいて、本発明の実施例を紹介
する。BEST MODE FOR CARRYING OUT THE INVENTION The material of the welding electrode used in the present invention may be any material having high conductivity and excellent machinability, and examples thereof include copper, brass, iron and aluminum. Furthermore, among the thermoplastic resins, ABS resin (ABS), polyacetal (POM), methacrylic resin (PMMA), polyamide (PA), polycarbonate (PC), and poniphenylene sulfide (PPS) are used among the thermoplastic resins. ), Polypropylene (PP), polystyrene (PS), polyvinyl chloride (PVC), polybutylene terephthalate (PBT), AS resin (AS)
And the like, and alloys and the like are also possible. An embodiment of the present invention will be described below with reference to the drawings.
【００１４】[0014]
【実施例１】まず、請求項１に対応する熱融着用電極に
ついてその実施例を説明する。図１は電極の構造を示す
もので、図１（Ａ）は全体の斜視図、図１（Ｂ）は熱融
着用電極１０を側面から見た側面図、図１（Ｃ）は熱融
着用電極１０を背面から見た側面図、図１（Ｄ）は熱融
着用電極１０を当接面１１側から見た正面図、図１
（E）は（Ａ）図のＡ−Ａ′部断面図である。本実施例
の熱融着用電極１０に用いられている材料は、直径が３
ｍｍの銅棒である。更に、その中心には軸方向へ直径が
１ｍｍの通気孔１２が貫通して形成されており、冷却用
気体を熱融着用電極１０の後部の注入口１３から注入
し、通気孔１２を経て当接面１１に開口した噴射口１４
から吹き出すことが可能な構造となっている。 EXAMPLE 1] First, the embodiments thereof for heat worn electrodes corresponding to claim 1. 1A and 1B show the structure of the electrode, FIG. 1A is an overall perspective view, FIG. 1B is a side view of the electrode 10 for heat fusion viewed from the side, and FIG. FIG. 1D is a side view of the electrode 10 as viewed from the back, and FIG.
(E) is a sectional view taken along the line AA ′ of (A). The material used for the heat welding electrode 10 of this embodiment has a diameter of 3
mm copper rod. Further, a ventilation hole 12 having a diameter of 1 mm is formed in the center thereof in the axial direction, and a cooling gas is injected from an injection hole 13 at a rear portion of the electrode 10 for heat fusion. Injection port 14 opened on contact surface 11
It is a structure that can blow out from .
【００１５】一方、電極１０の当接面１１側の側面に
は、約１５度の角度で当接面１１に向かって徐々に拡が
る様に切り欠いた傾斜面（逃げ面）１５を形成し、その
結果、当接面１１は正面から見るとＣ字型の形状になっ
ている（図１（Ａ）参照）。電極１０の当接面１１に近
い傾斜面１５においては、軸方向に形成された通気孔１
２によりかまぼこ形の噴射口１４が開口している。 On the other hand, on the side surface of the electrode 10 on the contact surface 11 side, an inclined surface (flank surface) 15 is formed so as to gradually expand toward the contact surface 11 at an angle of about 15 degrees. As a result, the contact surface 11 has a C-shape when viewed from the front (see FIG. 1A). The inclined surface 15 near the contact surface 11 of the electrode 10 has a ventilation hole 1 formed in the axial direction.
2, a semi-cylindrical injection port 14 is opened .
【００１６】更に、当接面１１は、中央部が凹んだお椀
形の凹曲面形状に形成されている。この形状は、複数本
の抵抗発熱体へ同時に電圧を印加する場合、電極１０に
加えられた荷重と凹曲面の効果により互いの受電部を当
接面１１の中心部に導き寄せる効果がある。この結果、
当接面１１と互いの受電部との接触が十分となり、安定
して複数本の抵抗発熱体に対して電圧を印加することが
できる。但し、当接面は、凹曲面だけではなく、例えば
コ字状であってもよい。Further, the contact surface 11 is formed in a bowl-shaped concave curved surface shape having a concave central portion. This shape has an effect that, when a voltage is simultaneously applied to a plurality of resistance heating elements, the load applied to the electrode 10 and the effect of the concave curved surface guide the respective power receiving parts to the center of the contact surface 11. As a result,
The contact between the contact surface 11 and each of the power receiving units becomes sufficient, and voltage can be stably applied to the plurality of resistance heating elements. However, and abutment surfaces, not just concave surface may be, for example, U-shaped.
【００１７】以上の構成からなる本発明の抵抗発熱体４
０を用いて、熱可塑性樹脂（ＰＰＧＦ２０％）からなる
成形品上ケース５０と下ケース６０を熱融着する方法を
図２〜図１０の各図を用いて説明する。The resistance heating element 4 of the present invention having the above-described structure.
The method of heat-sealing the upper case 50 and the lower case 60 made of a thermoplastic resin (20% PPGF) by using a thermoplastic resin (PPGF 20%) will be described with reference to FIGS.
【００１８】本実施例では、抵抗発熱体の受電部を上下
方向から挟持する一対の熱融着用電極において、下側の
熱融着用電極には通気孔のない電極を用いた。これは、
下側にあるため溶融して成形品からはみ出した樹脂が通
気孔に入ってしまわないようにするためである。以降、
便宜上、通気孔のある上側の熱融着用電極を上側電極２
０、及び、通気孔の無い下側の熱融着用電極を下側電極
３０と称する。In this embodiment, among the pair of heat-sealing electrodes sandwiching the power receiving portion of the resistance heating element from above and below, an electrode having no vent hole is used as the lower heat-sealing electrode. this is,
This is to prevent the resin that has melted and protrudes from the molded product because it is on the lower side, does not enter the ventilation hole. Or later,
For convenience, the upper heat-sealing electrode having a vent is connected to the upper electrode 2.
0 and the lower heat-sealing electrode having no vent hole are referred to as a lower electrode 30.
【００１９】図２は、四角形の下ケース５０と上ケース
６０を同一形状の抵抗発熱体４０を用いて熱融着する説
明図である。図３は、本実施例に用いる電気抵抗に基づ
く抵抗発熱体４０の形状である。その形状は、四角形の
融着面を対角位置で２等分した形状で、材料にはステン
レス材を用いている。両端部は約４５度の角度で外側に
折り曲げて適宜な長さで切断し、一端を受電部Ａ４１と
し、他端を受電部Ｂ４２とした。両端の受電部Ａ４１と
受電部Ｂ４２を折り曲げた理由は、後述する様に抵抗発
熱体４０を二本組み合わせた時、例えば、受電部Ａ４１
と受電部Ｂ４２が平行に並んだときに上側電極２０と下
側電極３０間に同時に均等に挟まれて、確実に給電が行
われるようにするためである。FIG. 2 is an explanatory view of heat-sealing the rectangular lower case 50 and upper case 60 using the resistance heating element 40 having the same shape. FIG. 3 shows the shape of the resistance heating element 40 based on the electric resistance used in the present embodiment. The shape is a shape obtained by bisecting a quadrangular fusion surface at diagonal positions, and a stainless steel material is used as a material. Both ends were bent outward at an angle of about 45 degrees and cut at an appropriate length. One end was a power receiving unit A41, and the other end was a power receiving unit B42. The reason why the power receiving unit A41 and the power receiving unit B42 at both ends are bent is that when two resistance heating elements 40 are combined as described later, for example, the power receiving unit A41
When the power receiving unit B42 and the power receiving unit B42 are arranged in parallel, the power receiving unit B42 is evenly and simultaneously sandwiched between the upper electrode 20 and the lower electrode 30 so that power is reliably supplied.
【００２０】まず、前記抵抗発熱体４０を下ケース５０
の融着面５１と４角のフランジ５２に形成された溝５３
に対向する様にして組み込み、リング状に形成して融着
面５１全周を囲む様にする。下ケース５０の抵抗発熱体
４０の受電部Ａ４１及び受電部Ｂ４２が位置するフラン
ジ５２には、下側電極３０を挿入することができる小径
孔Ａ５４が貫通して設けてある。図４は下ケース５０の
溝５３に抵抗発熱体４０を対向するようにして組み込
み、受電部Ａ４１、受電部Ｂ４２を小径孔Ａ５４に位置
合わせした状態の説明図である。上ケース６０の融着面
６１と四つの角の外側に形成したフランジ６２の下面に
は、下ケース５０の溝５３に挿入される融着用リブ６３
が形成されていると共に、フランジ６２には、下ケース
５０の小径孔Ａ５４と対向する位置に上側電極２０を挿
入することができる小径孔Ｂ６４が貫通して設けてあ
る。First, the resistance heating element 40 is connected to the lower case 50.
Groove 53 formed on the fusion surface 51 and the square flange 52
And is formed in a ring shape so as to surround the entire periphery of the fusion surface 51. A small-diameter hole A54 into which the lower electrode 30 can be inserted is provided through the flange 52 where the power receiving part A41 and the power receiving part B42 of the resistance heating element 40 of the lower case 50 are located. FIG. 4 is an explanatory view of a state in which the resistance heating element 40 is incorporated in the groove 53 of the lower case 50 so as to face the power receiving portion A41 and the power receiving portion B42 are aligned with the small-diameter hole A54. A fusion rib 63 inserted into a groove 53 of the lower case 50 is provided on a lower surface of a flange 62 formed outside the four corners of the fusion surface 61 of the upper case 60.
Are formed, and a small-diameter hole B64 through which the upper electrode 20 can be inserted is provided through the flange 62 at a position facing the small-diameter hole A54 of the lower case 50.
【００２１】融着作業に入る前には、先ず、上ケース６
０の前記融着用リブ６３を下ケース５０の溝５３に挿入
するようにして上ケース６０を下ケース５０に被せ、さ
らに、適宜な押圧を上ケース６０に与えて下ケース５０
に押し付けた状態を保つようにする。以上の様に準備し
て、融着作業に移行する。Before starting the fusion work, first, the upper case 6
The upper case 60 is put on the lower case 50 by inserting the welding ribs 63 of the lower case 50 into the grooves 53 of the lower case 50.
To keep it pressed. The preparation is performed as described above, and the process proceeds to the fusion work.
【００２２】本実施例においては、図５に示すように、
上側電極２０には通気孔１２のある電極、下側電極３０
には通気孔のない電極を使用した。さらに、抵抗発熱体
４０の両端を異極とするため、受電部Ａ４１，受電部Ｂ
４２に当接する電極の極性を変え、夫々の上側電極２０
と下側電極３０を電源回路に接続した。電極に至る各電
線は電圧変換用トランス（１２０ＶＡ）の２次側に接続
し、１次側は商用電源に接続した。In this embodiment, as shown in FIG.
The upper electrode 20 includes an electrode having the vent hole 12 and the lower electrode 30.
An electrode without a vent was used. Furthermore, since the opposite ends of the resistance heating element 40 have different polarities, the power receiving units A41 and B
The polarity of the electrodes abutting on the upper electrode 20 is changed.
And the lower electrode 30 were connected to a power supply circuit. Each electric wire to the electrode was connected to the secondary side of a voltage conversion transformer (120 VA), and the primary side was connected to a commercial power supply.
【００２３】図４のＢ−Ｂ′部断面図である図６，図
８、図９、及び、図４のＣ−Ｃ′部断面図である図７を
用いてさらに詳細に説明する。上側電極２０及び下側電
極３０は、ともに側面の傾斜面１５がケースの内側に向
かう様に融着装置に取り付ける。6, 8, and 9, which are sectional views taken along the line BB 'of FIG. 4, and FIG. 7, which is a sectional view taken along the line CC' of FIG. The upper electrode 20 and the lower electrode 30 are both attached to the fusion device such that the inclined surface 15 on the side faces toward the inside of the case.
【００２４】まず、図６の様に、上ケース６０の小径孔
Ｂ６４に上側電極２０を、下ケース５０の小径孔Ａ５４
に下側電極３０を差込み、抵抗発熱体４０の受電部Ａ４
１，受電部Ｂ４２を当接面１１で上下から挟持する。図
７から分かるように、下側電極３０と上側電極２０の当
接面１１がお椀状のに凹曲面であるため、各受電部Ａ４
１，受電部Ｂ４２が位置ズレをおこしていても、凹曲面
の効果により互いに寄せられて接触が確実に行われ、的
確な電圧印加を行うことができる。First, as shown in FIG. 6, the upper electrode 20 is inserted into the small-diameter hole B64 of the upper case 60, and the small-diameter hole A54 of the lower case 50 is formed.
The lower electrode 30 is inserted into the power receiving section A4 of the resistance heating element 40.
1. The power receiving unit B42 is sandwiched between the contact surfaces 11 from above and below. As can be seen from FIG. 7, since the contact surface 11 between the lower electrode 30 and the upper electrode 20 is a bowl-shaped concave curved surface, each power receiving unit A4
1. Even if the power receiving unit B42 is displaced, the concave portions are brought close to each other due to the effect of the concave surface, so that the contact is reliably performed, and accurate voltage application can be performed.
【００２５】次に、電圧変換用トランスから上側と下側
の電極２０，３０、受電部Ａ４１，受電部Ｂ４２を通じ
て同時に２つの抵抗発熱体４０に電圧を印加すると、抵
抗発熱体４０がジュール熱で発熱する。この電圧印加時
に、上側電極２０の注入口１３から冷却用気体を注入す
る。この注入された冷却用気体は、図７から明かなよう
に、通気孔１２を経て当接面１１及び傾斜面１５に開口
した噴射口１４から受電部Ａ４１及び受電部Ｂ４２に吹
き付けてこの部分を冷却する。この冷却により、受電部
Ａ４１，受電部Ｂ４２が接触抵抗の増大により異常に温
度上昇して融着面が過加熱（過溶融）するのを防止す
る。Next, when a voltage is simultaneously applied to the two resistance heating elements 40 from the voltage conversion transformer through the upper and lower electrodes 20, 30 and the power receiving sections A41 and B42, the resistance heating elements 40 generate Joule heat. Fever. When this voltage is applied, a cooling gas is injected from the injection port 13 of the upper electrode 20. As is clear from FIG. 7, the injected cooling gas is blown to the power receiving unit A41 and the power receiving unit B42 from the injection port 14 opened to the contact surface 11 and the inclined surface 15 through the air hole 12, and this portion is blown. Cooling. This cooling prevents the power receiving unit A41 and the power receiving unit B42 from abnormally rising in temperature due to an increase in the contact resistance and overheating (overmelting) the fused surface.
【００２６】融着リブ６３や溝５３の樹脂が溶融温度ま
で加熱されて溶融し、上ケース６０にかかっている押圧
により混合されて溶融樹脂がケース外にあふれ出て余剰
樹脂７０が発生する（図８参照）。しかし、上側電極２
０と下側電極３０には傾斜面１５が形成されているた
め、余剰樹脂７０が電極２０，３０に付着することはな
く、万一付着しても、電極２０，３０が上下に開放する
時、傾斜面１５（傾斜角度）の効果により、容易に電極
２０，３０から離脱する。The resin in the fusion ribs 63 and the grooves 53 is heated to the melting temperature and melted, and is mixed by the pressure applied to the upper case 60, so that the molten resin overflows out of the case to generate excess resin 70 ( See FIG. 8). However, the upper electrode 2
Since the inclined surface 15 is formed on the lower electrode 30 and the lower electrode 30, the surplus resin 70 does not adhere to the electrodes 20 and 30. , And easily separate from the electrodes 20 and 30 by the effect of the inclined surface 15 (inclination angle).
【００２７】所定の融着時間が終了すると電圧の印加を
止め、冷却して溶融した樹脂が硬化した後、上ケース６
０から押圧を解除するとともに、上側電極２０と下側電
極３０を小径孔Ａ５４、小径孔Ｂ６４から引き抜き、抵
抗発熱体４０の受電部Ａ４１，受電部Ｂ４２から離し、
熱融着を完了する（図９参照）。When the predetermined fusing time is over, the application of the voltage is stopped, and after cooling and the molten resin is hardened, the upper case 6
While the pressing is released from 0, the upper electrode 20 and the lower electrode 30 are pulled out from the small-diameter hole A54 and the small-diameter hole B64, and separated from the power receiving portions A41 and B42 of the resistance heating element 40,
The heat fusion is completed (see FIG. 9).
【００２８】[0028]
【比較例】比較例として、図１０の様な通気孔１２、傾
斜面１５、当接面１１に凹面の無い熱融着用電極８０を
用いた以外は実施例２と全く同様の方法で熱融着を行っ
た。なお、図１０の表示場所は、実施例２において用い
た図６〜図９の表示場所と同一の場所である。ケースの
外部にあふれ出た余剰樹脂７０は、抵抗発熱体４０と熱
融着用電極８０との接触抵抗等により他の場所以上に発
熱するため、受電部Ａ４１，受電部Ｂ４２全体に広ま
り、電極８０に付着した。COMPARATIVE EXAMPLE As a comparative example, heat fusion was performed in exactly the same manner as in Example 2 except that the heat-sealing electrode 80 having no concave surface on the ventilation hole 12, the inclined surface 15, and the contact surface 11 as shown in FIG. Dressed. The display location in FIG. 10 is the same as the display location in FIGS. 6 to 9 used in the second embodiment. The excess resin 70 that has overflowed to the outside of the case generates more heat at other places due to the contact resistance between the resistance heating element 40 and the electrode 80 for heat fusing, and so spreads over the entirety of the power receiving units A41 and B42, and Adhered to.
【００２９】また、熱融着用電極８０の当接面８１が平
面であることから、一方の受電部が外れてしまうことも
発生した。その結果、受電部Ａ４１，受電部Ｂ４２と熱
融着用電極８０の接触が悪くなり、通電不良から融着強
度の不足、更には通電されないなどの不都合が生じた。Further, since the contact surface 81 of the heat fusing electrode 80 is flat, one of the power receiving portions may come off. As a result, the contact between the power receiving portions A41 and B42 and the heat fusing electrode 80 is deteriorated, and inconveniences such as insufficient welding strength due to poor current supply, and furthermore no power supply are caused.
【００３０】[0030]
【発明の効果】以上に説明した本発明に係る熱可塑性樹
脂で成形された成形品の熱融着用電極によれば、次のよ
うな効果が得られる。 ａ．一対の熱融着用電極により抵抗発熱体の受電部を挟
んで電圧を印加するので、受電部の変形が起こらず、安
定した通電ができる。 ｂ．受電部と熱融着用電極が当接する場所へ冷却用気体
を吹きかけながら電圧印加を行うことにより、受電部の
異常な温度上昇を防ぐことができる。 ｃ．熱融着用電極の側面に傾斜面を形成しているので、
漏れだした余剰樹脂が電極に付着することがなく、安定
した接触状態を得ることができる。 ｄ．電極の当接面に凹面を形成したことにより、特に複
数本の受電部の場合にその接触を確実なものとすること
ができる。According to the heat fusing electrode or according to the present invention as described is molded from a thermoplastic resin molded articles of, according to the present invention, the following effects are obtained. a. Since a voltage is applied across the power receiving portion of the resistance heating element between the pair of heat fusing electrodes, the power receiving portion is not deformed, and stable power supply can be performed. b. By applying a voltage while spraying a cooling gas to a place where the power receiving unit and the electrode for heat fusion contact, it is possible to prevent an abnormal rise in temperature of the power receiving unit. c. Because the inclined surface is formed on the side surface of the heat welding electrode,
The leaked excess resin does not adhere to the electrode, and a stable contact state can be obtained. d. By forming the concave surface on the contact surface of the electrode, it is possible to secure the contact particularly in the case of a plurality of power receiving units.
【図１】実施例１による熱融着用電極の説明図。FIG. 1 is an explanatory view of a heat fusing electrode according to a first embodiment.
【図２】上ケースと下ケースを抵抗発熱体を用いて熱融
着する準備段階の説明図。FIG. 2 is an explanatory view of a preparatory stage in which an upper case and a lower case are thermally fused using a resistance heating element.
【図３】実施例２に用いた抵抗発熱体の説明図。FIG. 3 is an explanatory diagram of a resistance heating element used in Example 2.
【図４】下ケースに抵抗発熱体を組み込んだ状態を示す
平面図。FIG. 4 is a plan view showing a state where a resistance heating element is incorporated in a lower case.
【図５】熱融着用電極を給電装置に接続した状態の説明
図。FIG. 5 is an explanatory diagram of a state in which a heat fusion electrode is connected to a power supply device.
【図６】図４Ｂ−Ｂ′部断面において、一対の熱融着用
電極により受電部を挟持した様子を表す説明図。FIG. 6 is an explanatory diagram showing a state in which a power receiving unit is sandwiched between a pair of heat fusing electrodes in the cross section of FIG. 4B-B ′.
【図７】図４Ｃ−Ｃ′部断面において、一対の熱融着用
電極により受電部を挟持した様を表す説明図。FIG. 7 is an explanatory view showing a state in which a power receiving unit is sandwiched between a pair of heat fusing electrodes in a cross section taken along the line C-C ′ of FIG. 4;
【図８】図４Ｃ−Ｃ′部断面において、抵抗発熱体を発
熱させ熱融着している様子を表す説明図。FIG. 8 is an explanatory view showing a state in which a resistance heating element is heated and thermally fused in a cross section taken along the line C-C ′ of FIG. 4;
【図９】図４Ｃ−Ｃ′部断面において、熱融着が完了し
た様子を表す説明図。FIG. 9 is an explanatory view showing a state in which heat fusion is completed in the cross section taken along the line CC ′ of FIG. 4;
【図１０】図４Ｃ−Ｃ′部断面において、従来の形状の
熱融着用電極を用いて熱融着を行っている比較例の説明
図。FIG. 10 is an explanatory view of a comparative example in which heat fusion is performed using a conventional shape of a heat fusion electrode in a cross section taken along the line CC ′ of FIG. 4;
１０ 熱融着用電極 １１ 当接面 １２ 通気孔 １４ 噴射口 １５ 傾斜面 ２０ 上側電極 ３０ 下側電極 ４０ 抵抗発熱体 ４１ 受電部Ａ ４２ 受電部Ｂ ５０ 下ケース ６０ 上ケース ７０ 余剰樹脂 DESCRIPTION OF SYMBOLS 10 Heat fusion electrode 11 Contact surface 12 Vent hole 14 Injection hole 15 Slope 20 Upper electrode 30 Lower electrode 40 Resistance heating element 41 Power receiving part A 42 Power receiving part B 50 Lower case 60 Upper case 70 Excess resin
Claims (1)
面に抵抗発熱体を挟み込み、前記抵抗発熱体の受電部を
一対の融着用電極で上下方向から挟持しながら前記受電
部に電圧を印加する棒状熱融着用電極であって、上側の
熱融着用電極には軸方向に貫通した通気孔が設けられて
いると共に、この通気孔は熱融着用電極が受電部に接す
る当接面に開口していること、前記熱融着用電極の双方
の側面であって、前記抵抗発熱体側に面した部分には、
前記電極の当接面に向けて斜めに切り欠いた傾斜面が形
成されていること、を特徴とする熱可塑性樹脂で成形さ
れた成形品の熱融着用電極。 1. The fusion of a molded article molded from a thermoplastic resin.
The resistance heating element is sandwiched between the surfaces, and the power receiving section of the resistance heating element is
Receives power while holding it from above and below with a pair of welding electrodes
Rod-shaped heat welding electrode for applying a voltage to the part,
The heat welding electrode is provided with a ventilation hole that penetrates in the axial direction.
In addition, this vent hole allows the heat-sealing electrode to
Both sides of the heat-sealing electrode
On the side facing the resistance heating element side,
The inclined surface notched diagonally toward the contact surface of the electrode is shaped
Molded with a thermoplastic resin, characterized in that
Electrode for heat-sealing molded products.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28575599A JP3242386B2 (en) | 1999-10-06 | 1999-10-06 | Electrode for heat fusion of molded article molded with thermoplastic resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28575599A JP3242386B2 (en) | 1999-10-06 | 1999-10-06 | Electrode for heat fusion of molded article molded with thermoplastic resin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001105501A JP2001105501A (en) | 2001-04-17 |
| JP3242386B2 true JP3242386B2 (en) | 2001-12-25 |
Family
ID=17695642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28575599A Expired - Lifetime JP3242386B2 (en) | 1999-10-06 | 1999-10-06 | Electrode for heat fusion of molded article molded with thermoplastic resin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3242386B2 (en) |
-
1999
- 1999-10-06 JP JP28575599A patent/JP3242386B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2001105501A (en) | 2001-04-17 |
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