WO2017199480A1 - Gas type thermoplastic resin member bonding device and method for bonding thermoplastic resin member - Google Patents

Gas type thermoplastic resin member bonding device and method for bonding thermoplastic resin member Download PDF

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Publication number
WO2017199480A1
WO2017199480A1 PCT/JP2017/004084 JP2017004084W WO2017199480A1 WO 2017199480 A1 WO2017199480 A1 WO 2017199480A1 JP 2017004084 W JP2017004084 W JP 2017004084W WO 2017199480 A1 WO2017199480 A1 WO 2017199480A1
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WO
WIPO (PCT)
Prior art keywords
thermoplastic resin
resin member
burner
gas
heating
Prior art date
Application number
PCT/JP2017/004084
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French (fr)
Japanese (ja)
Inventor
宮田　博文
孝志 國定
Original Assignee
バンドー化学株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by バンドー化学株式会社 filed Critical バンドー化学株式会社
Priority to JP2017508107A priority Critical patent/JP6116786B1/en
Priority to DE112017002518.4T priority patent/DE112017002518T5/en
Priority to CN201780027884.1A priority patent/CN109070486A/en
Publication of WO2017199480A1 publication Critical patent/WO2017199480A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • 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
    • B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
    • B29C65/28—Flame or combustible material
    • 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
    • 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
    • B29C66/01—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
    • B29C66/114—Single butt joints
    • B29C66/1142—Single butt to butt 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
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4324—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms for making closed loops, e.g. belts
    • 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
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/855—Belt splicing machines
    • 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
    • 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
    • B29C66/96—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process
    • B29C66/961—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process involving a feedback loop mechanism, e.g. comparison with a desired value
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G1/00—Driving-belts
    • F16G1/06—Driving-belts made of rubber

Definitions

  • the present invention relates to a gas-type thermoplastic resin member adhering device that heats and bonds both ends of a thermoplastic resin member such as a round belt such as thermoplastic polyurethane or a V-belt.
  • round belts and V-belts made of thermoplastic polyurethane have been used for light load transmission purposes.
  • the round belt or V belt is welded at a high temperature of about 240 ° C. by welding the belt end at the site and setting it in the apparatus (see, for example, Patent Document 1).
  • Such a welder is an electrothermal type, and there are many wired types having an electric cord.
  • the battery system has been adopted in consideration of portability, but there is a problem that the price of the entire welder becomes high due to the cost of the battery.
  • digital temperature display and temperature control of the heating unit can be easily controlled, there is a problem that a control board is required and the cost is high.
  • the present invention has been made in view of such points, and an object of the present invention is to reliably heat and bond both ends of a thermoplastic resin member with a simple and inexpensive structure.
  • the present invention has a simple gas type structure.
  • thermoplastic resin member adhesive of the first invention a hollow burner connection portion attached to the tip of the gas burner, A thermoplastic resin member heating section having a pair of heating surfaces having a through hole communicating with the burner connection section, heated by a flame emitted from the gas burner, and abutting a pair of thermoplastic resin member end portions; , A guide groove provided on the outer peripheral surface of the thermoplastic resin member heating portion and communicating with the through hole; A burner cover that covers the outer peripheral surface of the thermoplastic resin member heating portion including the guide groove, The flame introduced into the through hole is configured to be guided between the guide groove and the inner surface of the burner cover.
  • thermoplastic resin member heating portion is immediately heated to the welding temperature of the thermoplastic resin member, and the ends of the pair of thermoplastic resin members that are pressed are melted and bonded. Therefore, an electric cord or a battery is not required, and the structure becomes very simple. Moreover, since it can attach to the front-end
  • the thermoplastic resin member is not limited to a belt.
  • thermoplastic resin member is a belt.
  • the belt can be easily and reliably bonded on site when the belt is cut.
  • thermoplastic resin member heating part is cylindrical,
  • pair of heating surfaces are provided on both circular end surfaces of the thermoplastic resin member heating part,
  • the guide groove is formed along a circumferential direction of the thermoplastic resin member heating portion.
  • thermoplastic resin member heating portion since the outer peripheral surface of the thermoplastic resin member heating portion has a smooth curved surface, the flame from the burner is smoothly guided between the guide groove and the inner surface of the burner cover. Moreover, since it is circular, it is easy to manufacture.
  • At least one of the pair of heating surfaces is coated with a paint that changes color when a predetermined temperature is reached.
  • the optimum temperature can be easily confirmed with an inexpensive structure without providing a control board.
  • At least one of the pair of heating surfaces is provided with a bimetal that is deformed when a predetermined temperature is reached.
  • the optimum temperature can be easily confirmed with an inexpensive structure without providing a control board.
  • the gas burner can use lighter gas.
  • thermoplastic resin member heating part is made of a material having a higher thermal conductivity than the burner connection part.
  • thermoplastic resin member heating portion is heated prior to the burner connection portion, so that the thermoplastic resin member is efficiently melted.
  • the burner cover is made of a material having a lower thermal conductivity than the thermoplastic resin member heating portion.
  • thermoplastic resin member heating portion is heated prior to the burner cover, so that the thermoplastic resin member is efficiently melted.
  • thermoplastic belt cut to a predetermined length Preparing a thermoplastic belt cut to a predetermined length, and a preparation step of inserting the base of the burner connection portion into the tip of the gas burner; An ignition step of igniting the gas burner, and sending a flame to the through hole of the thermoplastic resin member heating section through the burner connection section; A melting step of pressing a pair of belt end portions from both sides against a pair of heating surfaces of the thermoplastic resin member heating portion and maintaining and melting for a predetermined time; and A crimping step in which the pair of belt end portions are quickly crimped together, held for a predetermined time while being crimped, and the melted portion is cooled and solidified.
  • thermoplastic resin member heating portion is immediately heated to the welding temperature of the thermoplastic resin member, and the ends of the pair of thermoplastic resin members that are pressed are melted and bonded.
  • an electric cord or a battery is not required, and the operation becomes extremely simple.
  • the melting step it is determined that a predetermined temperature has been reached by visually observing that the paint on the heating surface of the pair of heating surfaces is discolored or the bimetal on the heating surface is deformed.
  • the optimum temperature can be easily confirmed with an inexpensive structure without providing a control board.
  • a gas burner is filled with a commercially available lighter gas.
  • the burner connection portion can be attached to the tip of a commercially available gas burner, so the maintenance cost is low.
  • the burner connecting portion is attached to the tip of a gas soldering iron as the gas burner.
  • the burner connection portion can be attached to the tip of a commercially available gas soldering iron, the maintenance cost is low.
  • the ends of the pair of thermoplastic resin members are brought into contact with the thermoplastic resin member heating portion that is efficiently heated by guiding the flame discharged from the gas burner to the guide groove.
  • the end portions of the thermoplastic resin member can be reliably heated and bonded with a simple and inexpensive structure.
  • FIG. 8 is a sectional view taken along line VIII-VIII in FIG. 1.
  • FIG. 9 is a sectional view taken along line IX-IX in FIG. 8.
  • It is a rear view which shows a burner cover. It is a left view which shows a belt heating part and a burner connection part. It is a right view which shows a belt heating part and a burner connection part.
  • a gas belt adhesive device 1 as a gas type thermoplastic resin member adhesive device includes, for example, a round belt or a V belt made of thermoplastic polyurethane as a thermoplastic resin member by heat welding. It is easy to bond.
  • the material of the belt is not limited to a thermoplastic polyurethane alone as long as it is thermoplastic.
  • the gas type belt bonding machine 1 has a burner base 2 made of metal or the like, and a burner body 3 as a gas burner capable of filling a gas for an ordinary gas lighter is provided on the burner base 2.
  • the burner body 3 is provided with a push-type burner lever 4.
  • a nozzle portion 10 is connected to the tip of the burner body 3 where the flame is released.
  • the burner body 3 is, for example, a general-purpose product that can use lighter gas. In that case, the availability is good and the maintenance cost is low.
  • tip part of the burner main body 3 may be rotatable centering on the connection part 3b.
  • the nozzle portion 10 includes a burner connection portion 11 having a hollow stepped cylindrical shape, for example, attached to the tip of the burner body 3.
  • the burner connection portion 11 is made of, for example, stainless steel, and the base shape on the large diameter side may be formed in accordance with the tip portion 3a of the burner body 3, and the gas guide hole is formed in the center on the tip side of the small diameter.
  • a cylindrical insertion portion 11b having an opening 11a is formed.
  • a plurality of air holes 11 c may be opened on the base side of the burner connection portion 11.
  • a belt heating unit 12 as a thermoplastic resin member heating unit is inserted into the insertion unit 11b of the burner connection unit 11.
  • the belt heating unit 12 is made of, for example, a material that is less expensive than copper having a high thermal conductivity, but has a higher thermal conductivity than stainless steel, for example, brass.
  • the belt heating unit 12 is formed, for example, by cutting a brass cylindrical member or the like, and a pair of heating surfaces 12a and 12a are formed on both circular end surfaces. Since it is circular, it is easy to manufacture.
  • the heating surfaces 12a and 12a have an area where a pair of belt end portions B (indicated by a two-dot chain line in FIG. 8) can contact each other.
  • the belt heating unit 12 has a through hole 12b extending in the diametrical direction into which a flame from the tip is introduced, and the insertion portion 11b of the burner connection portion 11 is connected to the base side thereof.
  • a guide groove 12 c extending along the circumferential direction is formed on the outer peripheral surface of the burner connection portion 11.
  • the depth of the guide groove 12c is not particularly limited, but it is sufficient that the depth to which the flame spreads is ensured.
  • the guide groove 12c extends along the circumferential direction, but may extend in a spiral shape, for example.
  • the outer peripheral surface of the belt heating unit 12 is covered with a burner cover 13 having an arcuate cross section.
  • the guide groove 12c plays the role which guide
  • the burner cover 13 is formed, for example, by cutting the inner periphery and the side wall of a stainless steel tube, and the circular inner peripheral surface 13a into which the belt heating unit 12 is fitted, and one heating surface 12a of the belt heating unit 12 abuts.
  • the inner flange 13b that facilitates positioning when fitted is formed. Since the minimum inner diameter of the inner flange 13b is ensured to be larger than the outer diameter of the belt end B to be heated, it also serves as a positioning when the belt heating section 12 is pushed in and fitted. Since the burner cover 13 is made of, for example, stainless steel, the thermal conductivity is lower than that of the belt heating unit 12. Thereby, the temperature of the belt heating part 12 with which the belt end B abuts is easier to improve than the burner cover 13 made of stainless steel.
  • the gas type belt bonding device 1 has the pair of belt end portions B abutted against the pair of heating surfaces 12a and 12a of the belt heating unit 12 heated by the flame discharged from the burner body 3. After being melted, they are attached to each other and bonded.
  • At least one of the pair of heating surfaces 12a and 12a may be coated with a paint that changes color when a predetermined temperature is reached.
  • a paint that changes color when a predetermined temperature is reached.
  • At least one of the pair of heating surfaces 12a and 12a may be provided with a bimetal that is deformed when a predetermined temperature is reached. In this way, the optimum temperature can be easily confirmed by looking at the deformation of the bimetal with only an inexpensive structure without providing a control board.
  • the root of the burner connection portion 11 is inserted into the tip 3 a of the burner body 3.
  • the burner body 3 is filled with a commercially available lighter gas.
  • a thermoplastic belt cut to a predetermined length is prepared.
  • the burner lever 4 is pushed down to ignite, and the flame is sent to the through hole 12 b of the belt heating unit 12 through the burner connection unit 11.
  • the paint on the heating surface 12a is discolored or the bimetal is deformed to reach a predetermined temperature (for example, 240 ° C.).
  • the pair of belt end portions B are held in one hand and pressed against the pair of heating surfaces 12 a and 12 a from both sides, for example, maintained for 20 seconds to 90 seconds. To do. Then, since the heating surface 12a is equal to or higher than the melting temperature of the belt, the belt end B is melted.
  • the bonding is completed when the melted portion is held for 1 to 2 minutes and cooled and solidified.
  • the belt that is bonded on site and made endless is set in the device.
  • the belt heating unit 12 can be heated to the welding temperature of the belt immediately compared with the electric type to melt and bond the pair of belt end portions B. Also, no electrical cord or battery is required, and the structure is extremely simple.
  • nozzle part 10 can be attached to the front-end
  • the flame from the burner body 3 passes through the through hole 12 b of the belt heating unit 12, the flame collides with the burner cover 13 and the gap between the inner surface of the pair of guide grooves 12 c and the burner cover 13. Since it spreads over the entire outer periphery of the belt heating unit 12, the temperature variation of the entire pair of heating surfaces 12a and 12a is minimized. For example, the variation can be suppressed within about ⁇ 10 ° C. Since the outer peripheral surface of the belt heating unit 12 has a smooth curved surface, the flame from the burner body 3 is smoothly guided between the guide groove 12 c and the inner surface of the burner cover 13.
  • the pair of belt end portions B are applied to the belt heating unit 12 that efficiently heats the flame released from the burner body 3 by guiding it to the guide groove 12c.
  • the belt end B can be reliably heated and bonded with a simple and inexpensive structure.
  • the present invention may be configured as follows with respect to the above embodiment.
  • the example of the gas type belt adhesive device 1 in which the burner connection portion 11 is attached to the tip of the burner body 3 is shown, but the gas belt in which the burner connection portion 11 is attached to the tip of the gas soldering iron.
  • the adhesive unit 1 may be used.
  • the gas-type thermoplastic resin member bonder is the gas-type belt bonder 1 that easily bonds a round belt or a V-belt by heat welding, but the thermoplastic resin member to be bonded is limited to the belt. It is not necessary to be used, and it can be widely used for repairing by bonding the thermoplastic resin member.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

A gas type belt bonding device (1) is used to melt and bond a pair of belt ends to each other by bringing the belt ends into contact with a belt heating section (12) heated by flames emitted from a burner body (3). Specifically, the gas type belt bonding device (1) is provided with a hollow burner connection section (11) attached to a tip end (3a) of the burner body (3), and a pair of heating surfaces (12a, 12a) which are provided in the belt heating section (12) and with which the pair of belt ends are respectively brought into contact. Thus, the belt heating section (12) can be reliably heated with a simple and inexpensive structure for bonding.

Description

ガス式熱可塑性樹脂部材接着器及び熱可塑性樹脂部材の接着方法Gas type thermoplastic resin member bonding apparatus and method for bonding thermoplastic resin member
　本発明は、熱可塑性ポリウレタンなどの丸ベルトやＶベルト等の熱可塑性樹脂部材の両端部を加熱して接着するガス式熱可塑性樹脂部材接着器に関する。 The present invention relates to a gas-type thermoplastic resin member adhering device that heats and bonds both ends of a thermoplastic resin member such as a round belt such as thermoplastic polyurethane or a V-belt.
　従来より、軽負荷の伝動目的で熱可塑性ポリウレタンよりなる丸ベルトやＶベルトが用いられている。この丸ベルトやＶベルトは、現場でベルト端を溶着して装置にセッティングし、約２４０℃の高温で溶着される（例えば、特許文献１参照）。このような溶着器は、電熱式のものであって、電気コードを有する有線式のものが多かった。 Conventionally, round belts and V-belts made of thermoplastic polyurethane have been used for light load transmission purposes. The round belt or V belt is welded at a high temperature of about 240 ° C. by welding the belt end at the site and setting it in the apparatus (see, for example, Patent Document 1). Such a welder is an electrothermal type, and there are many wired types having an electric cord.
特開平８－１６６０４５号公報Japanese Patent Laid-Open No. 8-166045
　そこで、携帯性を考慮してバッテリ方式が採用されるようになってきているが、バッテリのコストのために溶着器全体の価格が高くなる問題がある。また、加熱部のデジタル式温度表示や温度コントロールが容易に制御可能であるが、制御基板などが必要となって高額になるという問題もある。 Therefore, the battery system has been adopted in consideration of portability, but there is a problem that the price of the entire welder becomes high due to the cost of the battery. In addition, although digital temperature display and temperature control of the heating unit can be easily controlled, there is a problem that a control board is required and the cost is high.
　本発明は、かかる点に鑑みてなされたものであり、その目的とするところは、簡易かつ安価な構造で確実に熱可塑性樹脂部材両端部を加熱して接着できるようにすることにある。 The present invention has been made in view of such points, and an object of the present invention is to reliably heat and bond both ends of a thermoplastic resin member with a simple and inexpensive structure.
　上記の目的を達成するために、この発明では、ガス式の簡易な構造にした。 In order to achieve the above object, the present invention has a simple gas type structure.
　具体的には、第１の発明のガス式熱可塑性樹脂部材接着器では、ガスバーナの先端に取り付ける中空のバーナ接続部と、
　　上記バーナ接続部に連通する貫通孔を有し、上記ガスバーナから放出される炎により加熱され、一対の熱可塑性樹脂部材端部が当接される一対の加熱面を有する熱可塑性樹脂部材加熱部と、
　上記熱可塑性樹脂部材加熱部の外周面に設けられて上記貫通孔に連通するガイド溝と、
　上記ガイド溝を含む上記熱可塑性樹脂部材加熱部の外周面を覆うバーナカバーとを備え、
　上記貫通孔に導入された炎が上記ガイド溝と上記バーナカバー内面との間に誘導されるように構成されている。 Specifically, in the gas type thermoplastic resin member adhesive of the first invention, a hollow burner connection portion attached to the tip of the gas burner,
A thermoplastic resin member heating section having a pair of heating surfaces having a through hole communicating with the burner connection section, heated by a flame emitted from the gas burner, and abutting a pair of thermoplastic resin member end portions; ,
A guide groove provided on the outer peripheral surface of the thermoplastic resin member heating portion and communicating with the through hole;
A burner cover that covers the outer peripheral surface of the thermoplastic resin member heating portion including the guide groove,
The flame introduced into the through hole is configured to be guided between the guide groove and the inner surface of the burner cover.
　上記の構成によると、ガスバーナの炎を利用するので、すぐに熱可塑性樹脂部材の溶着温度まで熱可塑性樹脂部材加熱部を加熱して押し当てられた一対の熱可塑性樹脂部材端部を溶かして接着できるため、電気コードやバッテリが必要とされず、構造が極めて簡易になる。また、市販のガスバーナの先端に取り付けることができるので、維持コストが安価である。さらに、ガスバーナからの炎が熱可塑性樹脂部材加熱部の内部を通った後、バーナカバーに衝突して一対のガイド溝内面とバーナカバーとの間を通って熱可塑性樹脂部材加熱部外周の全体に広がるので、全体の温度のバラツキが最小限となる。なお、熱可塑性樹脂部材は、ベルトに限定されない。 According to the above configuration, since the flame of the gas burner is used, the thermoplastic resin member heating portion is immediately heated to the welding temperature of the thermoplastic resin member, and the ends of the pair of thermoplastic resin members that are pressed are melted and bonded. Therefore, an electric cord or a battery is not required, and the structure becomes very simple. Moreover, since it can attach to the front-end | tip of a commercially available gas burner, a maintenance cost is cheap. Furthermore, after the flame from the gas burner has passed through the inside of the thermoplastic resin member heating part, it collides with the burner cover and passes between the inner surface of the pair of guide grooves and the burner cover, over the entire outer periphery of the thermoplastic resin member heating part. Since it spreads, the overall temperature variation is minimized. The thermoplastic resin member is not limited to a belt.
　第２の発明では、第１の発明において、
　上記熱可塑性樹脂部材は、ベルトである。 In the second invention, in the first invention,
The thermoplastic resin member is a belt.
　上記の構成によると、ベルトが切断されたときに現場で容易かつ確実に接着できる。 According to the above configuration, the belt can be easily and reliably bonded on site when the belt is cut.
　第３の発明では、第１又は第２の発明において、
　上記熱可塑性樹脂部材加熱部は、円柱状であり、
　上記一対の加熱面は、上記熱可塑性樹脂部材加熱部の円形状両端面に設けられ、
　上記ガイド溝は、上記熱可塑性樹脂部材加熱部の円周方向に沿って形成されている。 In the third invention, in the first or second invention,
The thermoplastic resin member heating part is cylindrical,
The pair of heating surfaces are provided on both circular end surfaces of the thermoplastic resin member heating part,
The guide groove is formed along a circumferential direction of the thermoplastic resin member heating portion.
　上記の構成によると、熱可塑性樹脂部材加熱部の外周面が滑らかな曲面を有するので、バーナからの炎がガイド溝とバーナカバー内面との間を滑らかに誘導される。また、円形であるので、製造しやすい。 According to the above configuration, since the outer peripheral surface of the thermoplastic resin member heating portion has a smooth curved surface, the flame from the burner is smoothly guided between the guide groove and the inner surface of the burner cover. Moreover, since it is circular, it is easy to manufacture.
　第４の発明では、第１から第３のいずれか１つの発明において、
　上記一対の加熱面の少なくとも一方には、所定の温度になると変色する塗料が塗布されている。 In a fourth invention, in any one of the first to third inventions,
At least one of the pair of heating surfaces is coated with a paint that changes color when a predetermined temperature is reached.
　上記の構成によると、制御基板を設けなくても、安価な構造で最適な温度を容易に確認できる。 According to the above configuration, the optimum temperature can be easily confirmed with an inexpensive structure without providing a control board.
　第５の発明では、第１から第３のいずれか１つの発明において、
　上記一対の加熱面の少なくとも一方には、所定の温度になると変形するバイメタルが設けられている。 In a fifth invention, in any one of the first to third inventions,
At least one of the pair of heating surfaces is provided with a bimetal that is deformed when a predetermined temperature is reached.
　上記の構成によると、制御基板を設けなくても、安価な構造で最適な温度を容易に確認できる。 According to the above configuration, the optimum temperature can be easily confirmed with an inexpensive structure without providing a control board.
　第６の発明では、第１から第５のいずれか１つの発明において、
　上記ガスバーナは、ライター用ガスが使用可能である。 In a sixth invention, in any one of the first to fifth inventions,
The gas burner can use lighter gas.
　上記の構成によると、入手性がよく、維持コストが安い。 According to the above configuration, the availability is good and the maintenance cost is low.
　第７の発明では、第１から第６のいずれか１つの発明において、
　上記熱可塑性樹脂部材加熱部は、上記バーナ接続部よりも熱伝導率の高い材料で構成されている。 In a seventh invention, in any one of the first to sixth inventions,
The thermoplastic resin member heating part is made of a material having a higher thermal conductivity than the burner connection part.
　上記の構成によると、熱可塑性樹脂部材加熱部がバーナ接続部よりも先に加熱されるので、効率よく熱可塑性樹脂部材が溶融される。 According to the above configuration, the thermoplastic resin member heating portion is heated prior to the burner connection portion, so that the thermoplastic resin member is efficiently melted.
　第８の発明では、第７の発明において、
　上記バーナカバーは、上記熱可塑性樹脂部材加熱部よりも熱伝導率の低い材料で構成されている。 In the eighth invention, in the seventh invention,
The burner cover is made of a material having a lower thermal conductivity than the thermoplastic resin member heating portion.
　上記の構成によると、熱可塑性樹脂部材加熱部がバーナカバーよりも先に加熱されるので、効率よく熱可塑性樹脂部材が溶融される。 According to the above configuration, the thermoplastic resin member heating portion is heated prior to the burner cover, so that the thermoplastic resin member is efficiently melted.
　第９の発明では、
　所定長さに切断した熱可塑性のベルトを用意し、バーナ接続部の根元をガスバーナの先端部に差し込む準備工程と、
　上記ガスバーナを着火させ、炎を上記バーナ接続部を介して熱可塑性樹脂部材加熱部の貫通孔に送り込む着火工程と、
　一対のベルト端部を両側からそれぞれ上記熱可塑性樹脂部材加熱部の一対の加熱面に押し付けて所定時間維持して溶融させる溶融工程と、
　上記一対のベルト端部を互いに素早く圧着し、圧着したまま所定時間保持し、溶融部を冷却固化させる圧着工程とを含む。 In the ninth invention,
Preparing a thermoplastic belt cut to a predetermined length, and a preparation step of inserting the base of the burner connection portion into the tip of the gas burner;
An ignition step of igniting the gas burner, and sending a flame to the through hole of the thermoplastic resin member heating section through the burner connection section;
A melting step of pressing a pair of belt end portions from both sides against a pair of heating surfaces of the thermoplastic resin member heating portion and maintaining and melting for a predetermined time; and
A crimping step in which the pair of belt end portions are quickly crimped together, held for a predetermined time while being crimped, and the melted portion is cooled and solidified.
　上記の構成によると、ガスバーナの炎を利用するので、すぐに熱可塑性樹脂部材の溶着温度まで熱可塑性樹脂部材加熱部を加熱して押し当てられた一対の熱可塑性樹脂部材端部を溶かして接着できるため、電気コードやバッテリが必要とされず、作業が極めて簡易になる。 According to the above configuration, since the flame of the gas burner is used, the thermoplastic resin member heating portion is immediately heated to the welding temperature of the thermoplastic resin member, and the ends of the pair of thermoplastic resin members that are pressed are melted and bonded. As a result, an electric cord or a battery is not required, and the operation becomes extremely simple.
　第１０の発明では、第９の発明において、
　上記溶融工程において、上記一対の加熱面の加熱面の塗料が変色し、又は該加熱面のバイメタルが変形するのを目視して所定の温度に達したことを判定する。 In a tenth aspect, in the ninth aspect,
In the melting step, it is determined that a predetermined temperature has been reached by visually observing that the paint on the heating surface of the pair of heating surfaces is discolored or the bimetal on the heating surface is deformed.
　上記の構成によると、制御基板を設けなくても、安価な構造で最適な温度を容易に確認できる。 According to the above configuration, the optimum temperature can be easily confirmed with an inexpensive structure without providing a control board.
　第１１の発明では、第９又は第１０の発明において、
　上記準備工程において、ガスバーナに市販のライター用ガスを充填しておく。 In an eleventh invention, in the ninth or tenth invention,
In the preparatory step, a gas burner is filled with a commercially available lighter gas.
　上記の構成によると、バーナ接続部を市販のガスバーナの先端に取り付けることができるので、維持コストが安価である。 According to the above configuration, the burner connection portion can be attached to the tip of a commercially available gas burner, so the maintenance cost is low.
　第１２の発明では、第９又は第１０の発明において、
　上記準備工程において、上記ガスバーナとしてガス式半田ごての先端に上記バーナ接続部を取り付ける。 In a twelfth invention, in the ninth or tenth invention,
In the preparation step, the burner connecting portion is attached to the tip of a gas soldering iron as the gas burner.
　上記の構成によると、バーナ接続部を市販のガス式半田ごての先端に取り付けることができるので、維持コストが安価である。 According to the above configuration, since the burner connection portion can be attached to the tip of a commercially available gas soldering iron, the maintenance cost is low.
　以上説明したように、本発明によれば、ガスバーナから放出される炎をガイド溝に誘導させて効率よく加熱される熱可塑性樹脂部材加熱部に一対の熱可塑性樹脂部材端部を当接させて接着するようにしたことにより、簡易かつ安価な構造で確実に熱可塑性樹脂部材端部を加熱して接着できる。 As described above, according to the present invention, the ends of the pair of thermoplastic resin members are brought into contact with the thermoplastic resin member heating portion that is efficiently heated by guiding the flame discharged from the gas burner to the guide groove. By bonding, the end portions of the thermoplastic resin member can be reliably heated and bonded with a simple and inexpensive structure.
ガス式ベルト接着器を示す正面図である。It is a front view which shows a gas type belt adhesive device. ガス式ベルト接着器を示す斜視図である。It is a perspective view which shows a gas type belt adhesive device. ガス式ベルト接着器を示す斜視図である。It is a perspective view which shows a gas type belt adhesive device. ガス式ベルト接着器を示す分解斜視図である。It is a disassembled perspective view which shows a gas type belt adhesive device. ガス式ベルト接着器を示す分解斜視図である。It is a disassembled perspective view which shows a gas type belt adhesive device. ガス式ベルト接着器を示す左側面図である。It is a left view which shows a gas type belt adhesive device. ノズル部を拡大して示す背面図である。It is a rear view which expands and shows a nozzle part. 図１のVIII－VIII線断面図である。FIG. 8 is a sectional view taken along line VIII-VIII in FIG. 1. 図８のIX－IX線断面図である。FIG. 9 is a sectional view taken along line IX-IX in FIG. 8. バーナカバーを示す背面図である。It is a rear view which shows a burner cover. ベルト加熱部及びバーナ接続部を示す左側面図である。It is a left view which shows a belt heating part and a burner connection part. ベルト加熱部及びバーナ接続部を示す右側面図である。It is a right view which shows a belt heating part and a burner connection part.
　以下、本発明の実施形態を図面に基づいて説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
　図１～図６に示すように、ガス式熱可塑性樹脂部材接着器としてのガス式ベルト接着器１は、例えば、熱可塑性樹脂部材としての熱可塑性ポリウレタン単体の丸ベルトやＶベルトを熱溶着により簡単に接着させるものである。ベルトの材質は、熱可塑性のものであれば、熱可塑性ポリウレタン単体に限定されない。 As shown in FIG. 1 to FIG. 6, a gas belt adhesive device 1 as a gas type thermoplastic resin member adhesive device includes, for example, a round belt or a V belt made of thermoplastic polyurethane as a thermoplastic resin member by heat welding. It is easy to bond. The material of the belt is not limited to a thermoplastic polyurethane alone as long as it is thermoplastic.
　ガス式ベルト接着器１は、金属製などのバーナ台２を有し、そのバーナ台２上に通常のガスライター用のガスを充填可能なガスバーナとしてのバーナ本体３が設けられている。バーナ本体３には、押圧式のバーナレバー４が設けられている。バーナ本体３の炎が放出される先端には、ノズル部１０が接続されている。バーナ本体３は、例えば、ライター用ガスが使用可能な汎用品とする。そうすると、入手性がよく、維持コストが安い。なお、バーナ本体３の先端部は、連結部３ｂを中心に回動可能であってもよい。 The gas type belt bonding machine 1 has a burner base 2 made of metal or the like, and a burner body 3 as a gas burner capable of filling a gas for an ordinary gas lighter is provided on the burner base 2. The burner body 3 is provided with a push-type burner lever 4. A nozzle portion 10 is connected to the tip of the burner body 3 where the flame is released. The burner body 3 is, for example, a general-purpose product that can use lighter gas. In that case, the availability is good and the maintenance cost is low. In addition, the front-end | tip part of the burner main body 3 may be rotatable centering on the connection part 3b.
　図７～図１２にも示すように、ノズル部１０は、バーナ本体３の先端に取り付ける、例えば中空段付円筒状のバーナ接続部１１を備えている。バーナ接続部１１は、例えば、ステンレス鋼で構成され、その大径側の根元形状は、バーナ本体３の先端部３ａに合わせて成形すればよく、小径の先端側には、中央にガス誘導孔１１ａが開口された円筒状の挿入部１１ｂが形成されている。なお、バーナ接続部１１の根元側には、複数の空気孔１１ｃが開口されていてもよい。 7 to 12, the nozzle portion 10 includes a burner connection portion 11 having a hollow stepped cylindrical shape, for example, attached to the tip of the burner body 3. The burner connection portion 11 is made of, for example, stainless steel, and the base shape on the large diameter side may be formed in accordance with the tip portion 3a of the burner body 3, and the gas guide hole is formed in the center on the tip side of the small diameter. A cylindrical insertion portion 11b having an opening 11a is formed. A plurality of air holes 11 c may be opened on the base side of the burner connection portion 11.
　バーナ接続部１１の挿入部１１ｂには、熱可塑性樹脂部材加熱部としてのベルト加熱部１２が挿入されている。ベルト加熱部１２は、例えば、熱伝導率が高い銅に比べて安価であるがステンレス鋼などに比べると熱伝導率の高い材料、例えば、真鍮で構成されている。このベルト加熱部１２は、例えば、真鍮の円柱状部材の削り出しなどで形成され、その円形状両端面に一対の加熱面１２ａ，１２ａが形成されている。円形であるので、製造しやすい。この加熱面１２ａ，１２ａは、一対のベルト端部Ｂ（図８に二点鎖線で示す）がそれぞれ当接可能な面積が確保されている。また、ベルト加熱部１２は、先端からの炎が導入される直径方向に伸びる貫通孔１２ｂを有し、その根元側にバーナ接続部１１の挿入部１１ｂが接続されている。バーナ接続部１１の外周面には、円周方向に沿って延びるガイド溝１２ｃが形成されている。ガイド溝１２ｃの深さは特に限定されないが、炎が行き渡る程度の深さが確保されていればよい。本実施形態では、ガイド溝１２ｃは、円周方向に沿って延びているが、例えば螺旋状に延びていてもよい。 A belt heating unit 12 as a thermoplastic resin member heating unit is inserted into the insertion unit 11b of the burner connection unit 11. The belt heating unit 12 is made of, for example, a material that is less expensive than copper having a high thermal conductivity, but has a higher thermal conductivity than stainless steel, for example, brass. The belt heating unit 12 is formed, for example, by cutting a brass cylindrical member or the like, and a pair of heating surfaces 12a and 12a are formed on both circular end surfaces. Since it is circular, it is easy to manufacture. The heating surfaces 12a and 12a have an area where a pair of belt end portions B (indicated by a two-dot chain line in FIG. 8) can contact each other. Further, the belt heating unit 12 has a through hole 12b extending in the diametrical direction into which a flame from the tip is introduced, and the insertion portion 11b of the burner connection portion 11 is connected to the base side thereof. A guide groove 12 c extending along the circumferential direction is formed on the outer peripheral surface of the burner connection portion 11. The depth of the guide groove 12c is not particularly limited, but it is sufficient that the depth to which the flame spreads is ensured. In the present embodiment, the guide groove 12c extends along the circumferential direction, but may extend in a spiral shape, for example.
　ベルト加熱部１２は、その外周面が、円弧状断面を有するバーナカバー１３で覆われている。そして、ガイド溝１２ｃは、貫通孔１２ｂに導入された炎を、この外周面を覆うバーナカバー１３内面との間で誘導する役割を果たす。 The outer peripheral surface of the belt heating unit 12 is covered with a burner cover 13 having an arcuate cross section. And the guide groove 12c plays the role which guide | induces the flame introduce | transduced into the through-hole 12b between the burner cover 13 inner surfaces which cover this outer peripheral surface.
　バーナカバー１３は、例えば、ステンレス鋼管の内周及び側壁を切削して形成され、ベルト加熱部１２が嵌まり込む円形内周面１３ａと、ベルト加熱部１２の一方の加熱面１２ａが当接することで嵌め込み時の位置決めが容易となる内フランジ１３ｂが形成されている。内フランジ１３ｂの最小の内径は、加熱対象のベルト端部Ｂの外径よりも大きく確保されているので、ベルト加熱部１２の軸方向に押し込んで嵌め込むときの位置決めの役割も果たす。バーナカバー１３は、例えばステンレス鋼よりなるので、ベルト加熱部１２よりも熱伝導率の低い。これにより、ステンレス鋼よりなるバーナカバー１３よりも、ベルト端部Ｂが当接するベルト加熱部１２の温度が向上しやすくなっている。 The burner cover 13 is formed, for example, by cutting the inner periphery and the side wall of a stainless steel tube, and the circular inner peripheral surface 13a into which the belt heating unit 12 is fitted, and one heating surface 12a of the belt heating unit 12 abuts. The inner flange 13b that facilitates positioning when fitted is formed. Since the minimum inner diameter of the inner flange 13b is ensured to be larger than the outer diameter of the belt end B to be heated, it also serves as a positioning when the belt heating section 12 is pushed in and fitted. Since the burner cover 13 is made of, for example, stainless steel, the thermal conductivity is lower than that of the belt heating unit 12. Thereby, the temperature of the belt heating part 12 with which the belt end B abuts is easier to improve than the burner cover 13 made of stainless steel.
　このように、ガス式ベルト接着器１は、このバーナ本体３から放出される炎により加熱されるベルト加熱部１２の一対の加熱面１２ａ，１２ａに一対のベルト端部Ｂをそれぞれ当接させて溶融させた後、互いに付き合わせて接着するようになっている。 As described above, the gas type belt bonding device 1 has the pair of belt end portions B abutted against the pair of heating surfaces 12a and 12a of the belt heating unit 12 heated by the flame discharged from the burner body 3. After being melted, they are attached to each other and bonded.
　例えば、一対の加熱面１２ａ，１２ａの少なくとも一方には、所定の温度になると変色する塗料が塗布されていてもよい。このようにすれば、制御基板を設けなくても簡単な構成だけで、色の変化を見れば最適な温度を容易に確認できるというメリットがある。 For example, at least one of the pair of heating surfaces 12a and 12a may be coated with a paint that changes color when a predetermined temperature is reached. In this way, there is an advantage that the optimum temperature can be easily confirmed by looking at the color change with a simple configuration without providing a control board.
　また、一対の加熱面１２ａ，１２ａの少なくとも一方には、所定の温度になると変形するバイメタルが設けられていてもよい。このようにすれば、同様に制御基板を設けなくても安価な構造だけで、バイメタルの変形を見れば最適な温度を容易に確認できる。 Further, at least one of the pair of heating surfaces 12a and 12a may be provided with a bimetal that is deformed when a predetermined temperature is reached. In this way, the optimum temperature can be easily confirmed by looking at the deformation of the bimetal with only an inexpensive structure without providing a control board.
　次に、本実施形態に係るガス式ベルト接着器１を用いたベルトの接着方法について説明する。 Next, a belt bonding method using the gas type belt bonding device 1 according to this embodiment will be described.
　まず、準備工程において、バーナ接続部１１の根元をバーナ本体３の先端部３ａに差し込んでおく。バーナ本体３には、市販のライター用ガスを充填しておく。また、所定長さに切断した熱可塑性のベルトを用意する。 First, in the preparation step, the root of the burner connection portion 11 is inserted into the tip 3 a of the burner body 3. The burner body 3 is filled with a commercially available lighter gas. A thermoplastic belt cut to a predetermined length is prepared.
　次いで、着火工程において、バーナレバー４を押し下げて着火させ、炎をバーナ接続部１１を介してベルト加熱部１２の貫通孔１２ｂに送り込む。 Next, in the ignition process, the burner lever 4 is pushed down to ignite, and the flame is sent to the through hole 12 b of the belt heating unit 12 through the burner connection unit 11.
　しばらく加熱すると、例えば、加熱面１２ａの塗料が変色し、又はバイメタルが変形して所定の温度（例えば２４０℃）に達したことが判明する。 When heated for a while, for example, the paint on the heating surface 12a is discolored or the bimetal is deformed to reach a predetermined temperature (for example, 240 ° C.).
　次いで、溶融工程において、図８に二点鎖線で示すように、一対のベルト端部Ｂをそれぞれ片手ずつに持ち、両側から一対の加熱面１２ａ，１２ａに押し付けて例えば、２０秒から９０秒維持する。すると、加熱面１２ａは、ベルトの溶融温度以上になっているので、ベルト端部Ｂが溶融する。 Next, in the melting step, as shown by a two-dot chain line in FIG. 8, the pair of belt end portions B are held in one hand and pressed against the pair of heating surfaces 12 a and 12 a from both sides, for example, maintained for 20 seconds to 90 seconds. To do. Then, since the heating surface 12a is equal to or higher than the melting temperature of the belt, the belt end B is melted.
　次いで、図８の矢印の先に二点鎖線で示すように、ベルト端部Ｂ同士を段違いのないように素早く圧着する。 Next, as shown by a two-dot chain line at the tip of the arrow in FIG. 8, the belt end portions B are quickly crimped so that there is no difference.
　次いで、圧着工程において、圧着したまま１～２分保持し、溶融部を冷却固化すると接着が完了する。 Next, in the crimping step, the bonding is completed when the melted portion is held for 1 to 2 minutes and cooled and solidified.
　そして、現場にて接着されてエンドレスとなったベルトを装置にセッティングする。 Then, the belt that is bonded on site and made endless is set in the device.
　本実施形態では、バーナ本体３の炎を利用するので、電気式に比べてすぐにベルトの溶着温度までベルト加熱部１２を加熱して一対のベルト端部Ｂを溶かして接着できる。また、電気コードやバッテリが必要とされず、構造が極めて簡易になる。 In this embodiment, since the flame of the burner main body 3 is used, the belt heating unit 12 can be heated to the welding temperature of the belt immediately compared with the electric type to melt and bond the pair of belt end portions B. Also, no electrical cord or battery is required, and the structure is extremely simple.
　また、市販のバーナ本体３の先端部３ａにノズル部１０を取り付けることができるので、維持コストが安価である。 Moreover, since the nozzle part 10 can be attached to the front-end | tip part 3a of the commercially available burner main body 3, a maintenance cost is cheap.
　また、図９に示すように、バーナ本体３からの炎がベルト加熱部１２の貫通孔１２ｂを通った後、バーナカバー１３に衝突して一対のガイド溝１２ｃ内面とバーナカバー１３との間を通ってベルト加熱部１２外周の全体に広がるので、一対の加熱面１２ａ，１２ａ全体の温度のバラツキが最小限となる。例えば、バラツキは、±１０℃程度以内に抑えられる。ベルト加熱部１２の外周面が滑らかな曲面を有するので、バーナ本体３からの炎がガイド溝１２ｃとバーナカバー１３内面との間を滑らかに誘導される。 Further, as shown in FIG. 9, after the flame from the burner body 3 passes through the through hole 12 b of the belt heating unit 12, the flame collides with the burner cover 13 and the gap between the inner surface of the pair of guide grooves 12 c and the burner cover 13. Since it spreads over the entire outer periphery of the belt heating unit 12, the temperature variation of the entire pair of heating surfaces 12a and 12a is minimized. For example, the variation can be suppressed within about ± 10 ° C. Since the outer peripheral surface of the belt heating unit 12 has a smooth curved surface, the flame from the burner body 3 is smoothly guided between the guide groove 12 c and the inner surface of the burner cover 13.
　したがって、本実施形態に係るガス式ベルト接着器１によると、バーナ本体３から放出される炎をガイド溝１２ｃに誘導させて効率よく加熱されるベルト加熱部１２に一対のベルト端部Ｂを当接させて接着するようにしたことにより、簡易かつ安価な構造で確実にベルト端部Ｂを加熱して接着できる。 Therefore, according to the gas-type belt adhesive device 1 according to the present embodiment, the pair of belt end portions B are applied to the belt heating unit 12 that efficiently heats the flame released from the burner body 3 by guiding it to the guide groove 12c. By making contact and bonding, the belt end B can be reliably heated and bonded with a simple and inexpensive structure.
　（その他の実施形態）
　本発明は、上記実施形態について、以下のような構成としてもよい。 (Other embodiments)
The present invention may be configured as follows with respect to the above embodiment.
　すなわち、上記実施形態では、バーナ本体３の先端にバーナ接続部１１を取り付けたガス式ベルト接着器１の例を示したが、ガス式半田ごての先端にバーナ接続部１１を取り付けるガス式ベルト接着器１でもよい。 That is, in the above-described embodiment, the example of the gas type belt adhesive device 1 in which the burner connection portion 11 is attached to the tip of the burner body 3 is shown, but the gas belt in which the burner connection portion 11 is attached to the tip of the gas soldering iron. The adhesive unit 1 may be used.
　上記実施形態では、ガス式熱可塑性樹脂部材接着器は、丸ベルトやＶベルトを熱溶着により簡単に接着させるガス式ベルト接着器１としたが、接着対象の熱可塑性樹脂部材は、ベルトに限定される必要はなく、熱可塑性樹脂部材を接着して修理等するために幅広く使用することができる。 In the above embodiment, the gas-type thermoplastic resin member bonder is the gas-type belt bonder 1 that easily bonds a round belt or a V-belt by heat welding, but the thermoplastic resin member to be bonded is limited to the belt. It is not necessary to be used, and it can be widely used for repairing by bonding the thermoplastic resin member.
　なお、以上の実施形態は、本質的に好ましい例示であって、本発明、その適用物や用途の範囲を制限することを意図するものではない。 In addition, the above embodiment is an essentially preferable example, and is not intended to limit the scope of the present invention, its application, and use.
　　　　　　１　　　ガス式ベルト接着器（熱可塑性樹脂部材接着器）
　　　　　　２　　　バーナ台
　　　　　　３　　　バーナ本体（ガスバーナ）
　　　　　　３ａ　　先端部
　　　　　　３ｂ　　連結部
　　　　　　４　　　バーナレバー
　　　　　１０　　　ノズル部
　　　　　１１　　　バーナ接続部
　　　　　１１ａ　　ガス誘導孔
　　　　　１１ｂ　　挿入部
　　　　　１１ｃ　　空気孔
　　　　　１２　　　ベルト加熱部（熱可塑性樹脂部材加熱部）
　　　　　１２ａ　　加熱面
　　　　　１２ｂ　　貫通孔
　　　　　１２ｃ　　ガイド溝
　　　　　１３　　　バーナカバー
　　　　　１３ａ　　円形内周面
　　　　　１３ｂ　　内フランジ 1 Gas belt adhesive (thermoplastic resin adhesive)
2 Burner stand 3 Burner body (gas burner)
3a Tip part 3b Connecting part 4 Burner lever 10 Nozzle part 11 Burner connection part 11a Gas induction hole 11b Insertion part 11c Air hole 12 Belt heating part (thermoplastic resin member heating part)
12a Heating surface 12b Through hole 12c Guide groove 13 Burner cover 13a Circular inner peripheral surface 13b Inner flange

Claims (12)

  1. 　ガスバーナの先端に取り付ける中空のバーナ接続部と、
    　上記バーナ接続部に連通する貫通孔を有し、上記ガスバーナから放出される炎により加熱され、一対の熱可塑性樹脂部材の端部が当接される一対の加熱面を有する熱可塑性樹脂部材加熱部と、
    　上記熱可塑性樹脂部材加熱部の外周面に設けられて上記貫通孔に連通するガイド溝と、
    　上記ガイド溝を含む上記熱可塑性樹脂部材加熱部の外周面を覆うバーナカバーとを備え、
    　上記貫通孔に導入された炎が上記ガイド溝と上記バーナカバー内面との間に誘導されるように構成されている
    ことを特徴とするガス式熱可塑性樹脂部材接着器。     A hollow burner connection attached to the tip of the gas burner;
    A thermoplastic resin member heating section having a pair of heating surfaces that have a through-hole communicating with the burner connection section and are heated by a flame emitted from the gas burner and contact the end portions of the pair of thermoplastic resin members When,
    A guide groove provided on the outer peripheral surface of the thermoplastic resin member heating portion and communicating with the through hole;
    A burner cover that covers the outer peripheral surface of the thermoplastic resin member heating portion including the guide groove,
    A gas-type thermoplastic resin member bonder characterized in that the flame introduced into the through hole is guided between the guide groove and the burner cover inner surface.
  2. 　請求項１のガス式熱可塑性樹脂部材接着器において、
    　上記熱可塑性樹脂部材は、ベルトである
    ことを特徴とするガス式熱可塑性樹脂部材接着器。     In the gas type thermoplastic resin member bonding machine according to claim 1,
    The thermoplastic resin member adhesive device, wherein the thermoplastic resin member is a belt.
  3. 　請求項１又は２のガス式熱可塑性樹脂部材接着器において、
    　上記熱可塑性樹脂部材加熱部は、円柱状であり、
    　上記一対の加熱面は、上記熱可塑性樹脂部材加熱部の円形状両端面に設けられ、
    　上記ガイド溝は、上記熱可塑性樹脂部材加熱部の円周方向に沿って形成されている
    ことを特徴とするガス式熱可塑性樹脂部材接着器。     In the gas type thermoplastic resin member adhesive of claim 1 or 2,
    The thermoplastic resin member heating part is cylindrical,
    The pair of heating surfaces are provided on both circular end surfaces of the thermoplastic resin member heating part,
    The gas-type thermoplastic resin member adhesive device, wherein the guide groove is formed along a circumferential direction of the thermoplastic resin member heating portion.
  4. 　請求項１から３のいずれか１つに記載のガス式熱可塑性樹脂部材接着器において、
    　上記一対の加熱面の少なくとも一方には、所定の温度になると変色する塗料が塗布されている
    ことを特徴とするガス式熱可塑性樹脂部材接着器。     In the gas type thermoplastic resin member adhesive according to any one of claims 1 to 3,
    At least one of the pair of heating surfaces is coated with a paint that changes color when a predetermined temperature is reached.
  5. 　請求項１から３のいずれか１つに記載のガス式熱可塑性樹脂部材接着器において、
    　上記一対の加熱面の少なくとも一方には、所定の温度になると変形するバイメタルが設けられている
    ことを特徴とするガス式熱可塑性樹脂部材接着器。     In the gas type thermoplastic resin member adhesive according to any one of claims 1 to 3,
    At least one of the pair of heating surfaces is provided with a bimetal which is deformed when a predetermined temperature is reached.
  6. 　請求項１から５のいずれか１つに記載のガス式熱可塑性樹脂部材接着器において、
    　上記ガスバーナは、ライター用ガスが使用可能である
    ことを特徴とするガス式熱可塑性樹脂部材接着器。     In the gas type thermoplastic resin member adhesive according to any one of claims 1 to 5,
    The gas burner can use lighter gas, and is a gas type thermoplastic resin member adhesive.
  7. 　請求項１から６のいずれか１つに記載のガス式熱可塑性樹脂部材接着器において、
    　上記熱可塑性樹脂部材加熱部は、上記バーナ接続部よりも熱伝導率の高い材料で構成されている
    ことを特徴とするガス式熱可塑性樹脂部材接着器。     In the gas type thermoplastic resin member adhesive according to any one of claims 1 to 6,
    The said thermoplastic resin member heating part is comprised with the material whose heat conductivity is higher than the said burner connection part, The gas type thermoplastic resin member adhesive device characterized by the above-mentioned.
  8. 　請求項７に記載のガス式熱可塑性樹脂部材接着器において、
    　上記バーナカバーは、上記熱可塑性樹脂部材加熱部よりも熱伝導率の低い材料で構成されている
    ことを特徴とするガス式熱可塑性樹脂部材接着器。     In the gas type thermoplastic resin member bonding machine according to claim 7,
    The gas type thermoplastic resin member bonder, wherein the burner cover is made of a material having a lower thermal conductivity than the thermoplastic resin member heating portion.
  9. 　所定長さに切断した熱可塑性のベルトを用意し、バーナ接続部の根元をガスバーナの先端部に差し込む準備工程と、
    　上記ガスバーナを着火させ、炎を上記バーナ接続部を介して熱可塑性樹脂部材加熱部の貫通孔に送り込む着火工程と、
    　一対のベルト端部を両側からそれぞれ上記熱可塑性樹脂部材加熱部の一対の加熱面に押し付けて所定時間維持して溶融させる溶融工程と、
    　上記一対のベルト端部を互いに素早く圧着し、圧着したまま所定時間保持し、溶融部を冷却固化させる圧着工程とを含む
    ことを特徴とする熱可塑性樹脂部材の接着方法。     Preparing a thermoplastic belt cut to a predetermined length, and a preparation step of inserting the base of the burner connection portion into the tip of the gas burner;
    An ignition step of igniting the gas burner, and sending a flame to the through hole of the thermoplastic resin member heating section through the burner connection section;
    A melting step of pressing a pair of belt end portions from both sides against a pair of heating surfaces of the thermoplastic resin member heating portion and maintaining and melting for a predetermined time; and
    A method of bonding a thermoplastic resin member, comprising: a step of quickly pressing the pair of belt end portions together, holding the pressure contacted portion for a predetermined time, and cooling and solidifying the melted portion.
  10. 　請求項９の熱可塑性樹脂部材の接着方法において、
    　上記溶融工程において、上記一対の加熱面の加熱面の塗料が変色し、又は該加熱面のバイメタルが変形するのを目視して所定の温度に達したことを判定する
    ことを特徴とする熱可塑性樹脂部材の接着方法。     In the bonding method of the thermoplastic resin member according to claim 9,
    In the melting step, it is determined that a predetermined temperature has been reached by visually observing that the paint on the heating surface of the pair of heating surfaces is discolored or the bimetal on the heating surface is deformed. Resin member adhesion method.
  11. 　請求項９又は１０の熱可塑性樹脂部材の接着方法において、
    　上記準備工程において、バーナ本体に市販のライター用ガスを充填しておく
    ことを特徴とする熱可塑性樹脂部材の接着方法。     In the bonding method of the thermoplastic resin member according to claim 9 or 10,
    In the above preparation step, the burner body is filled with a commercially available lighter gas.
  12. 　請求項９又は１０の熱可塑性樹脂部材の接着方法において、
    　上記準備工程において、上記ガスバーナとしてガス式半田ごての先端に上記バーナ接続部を取り付ける
    ことを特徴とする熱可塑性樹脂部材の接着方法。     In the bonding method of the thermoplastic resin member according to claim 9 or 10,
    In the preparing step, the burner connecting portion is attached to the tip of a gas soldering iron as the gas burner.
PCT/JP2017/004084 2016-05-18 2017-02-03 Gas type thermoplastic resin member bonding device and method for bonding thermoplastic resin member WO2017199480A1 (en)

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