CN102189681A - 高频缝纫机 - Google Patents

高频缝纫机 Download PDF

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Publication number
CN102189681A
CN102189681A CN2011100633119A CN201110063311A CN102189681A CN 102189681 A CN102189681 A CN 102189681A CN 2011100633119 A CN2011100633119 A CN 2011100633119A CN 201110063311 A CN201110063311 A CN 201110063311A CN 102189681 A CN102189681 A CN 102189681A
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CN
China
Prior art keywords
machined material
frequency
handover
sensor
frequency electrical
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.)
Granted
Application number
CN2011100633119A
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English (en)
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CN102189681B (zh
Inventor
中田纪男
冈本将挥
仓田博道
山本泰司
川田信行
辻章嘉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yamato Sewing Machine Mfg Co Ltd
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Yamato Sewing Machine Mfg Co Ltd
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Publication of CN102189681A publication Critical patent/CN102189681A/zh
Application granted granted Critical
Publication of CN102189681B publication Critical patent/CN102189681B/zh
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    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05BSEWING
    • D05B23/00Sewing apparatus or machines not otherwise provided for
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/84Specific machine types or machines suitable for specific applications
    • B29C66/845C-clamp type or sewing machine type
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/04Dielectric heating, e.g. high-frequency welding, i.e. radio frequency welding of plastic materials having dielectric properties, e.g. PVC
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/24Joining 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
    • B29C65/30Electrical means
    • B29C65/305Electrical means involving the use of cartridge heaters
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/481Non-reactive adhesives, e.g. physically hardening adhesives
    • B29C65/4815Hot melt adhesives, e.g. thermoplastic adhesives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5057Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like positioned between the surfaces to be joined
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/72Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by combined operations or combined techniques, e.g. welding and stitching
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7858Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined
    • B29C65/7888Means for handling of moving sheets or webs
    • B29C65/7891Means for handling of moving sheets or webs of discontinuously moving sheets or webs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/006Preventing damaging, e.g. of the parts to be joined
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11Joint 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
    • B29C66/112Single lapped joints
    • B29C66/1122Single lap to lap joints, i.e. overlap joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/40General 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
    • B29C66/41Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43Joining a relatively small portion of the surface of said articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General 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
    • B29C66/72General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/729Textile or other fibrous material made from plastics
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/81General 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
    • B29C66/812General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/8126General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/81262Electrical and dielectric properties, e.g. electrical conductivity
    • B29C66/81263Dielectric properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/81General 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
    • B29C66/816General 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 mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8167Quick change joining tools or surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/83General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/836Moving relative to and tangentially to the parts to be joined, e.g. transversely to the displacement of the parts to be joined, e.g. using a X-Y table
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/87Auxiliary operations or devices
    • B29C66/874Safety measures or devices
    • B29C66/8746Detecting the absence of the articles to be joined
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/90Measuring or controlling the joining process
    • B29C66/91Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/912Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux
    • B29C66/9121Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature
    • B29C66/91211Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature with special temperature measurement means or methods
    • B29C66/91212Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature with special temperature measurement means or methods involving measurement means being part of the welding jaws, e.g. integrated in the welding jaws
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/90Measuring or controlling the joining process
    • B29C66/91Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/912Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux
    • B29C66/9121Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature
    • B29C66/91231Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature of the joining tool
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/90Measuring or controlling the joining process
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    • B29C66/914Measuring 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
    • B29C66/9141Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91421Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the joining tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/90Measuring or controlling the joining process
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    • B29C66/9141Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91431Measuring 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 the temperature being kept constant over time
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
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    • B29C66/90Measuring or controlling the joining process
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    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/96Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process
    • B29C66/961Measuring 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
    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
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    • B29C66/70General 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
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/81General 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
    • B29C66/812General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/8126General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/81262Electrical and dielectric properties, e.g. electrical conductivity
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/81General 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
    • B29C66/818General 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
    • B29C66/8187General 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 electrical insulating constructional aspects
    • B29C66/81871General 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 electrical insulating constructional aspects of the welding jaws

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Textile Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Sewing Machines And Sewing (AREA)

Abstract

一种高频缝纫机,在沿水平方向和上下方向进行合成运动的送布牙与压脚的协同作用下,对装载于装载板上的被加工材料进行间歇移送,在移送停止中,向一对面状电极之间通入规定值的高频电,以感应加热方式使夹在被加工材料中的纤维布料(W)重叠部之间的可热塑性树脂带条熔化,来粘接纤维布料的重叠部,此外,在移送动作中,通过切换控制成向面状电极之间通入比移送停止中的值小的高频电的状态,藉此,不仅能获得可靠且均匀的粘接强度,还能防止烧坏或破洞等不合格制品的产生,且可完全应对曲线状部位、伸缩性纤维布料的粘接加工,而且能进行高效的粘接加工。

Description

高频缝纫机
技术领域
本发明涉及一种高频缝纫机,该高频缝纫机适用于以下情形:将以棉花、羊毛、丝绸等为代表的天然纤维或者以聚酯、尼龙、丙烯等为代表的合成纤维的布料(以下,在本发明中称为“纤维布料”)作为对象材料,通过采用高频感应加热方式被熔化的可热塑性树脂带条对该纤维布料的重叠端部等重叠部进行粘接(熔合),从而制造加工例如女式服装、儿童服装、男式服装等服装产品(衣料品)。
作为这种高频缝纫机,被加工材料本身例如是聚氯乙烯树脂等可热塑性合成树脂片或合成树脂薄膜,使这种被加工材料的重叠部熔合的技术已经广泛地开发并实用化。这种高频缝纫机只需具备以下两个构件即可,即沿着重叠部的长度方向对被加工材料即树脂片或树脂薄膜进行移送的移送装置和对由该装置移送的树脂片或树脂薄膜的重叠部通入高频电的一对电极。由此,与通过将针线(面线)、弯针线、底线等缝线缝成链锁状或链环状而形成线迹来对纤维布料进行缝合的普通缝制式缝纫机相比,可以省略使用该种缝制式缝纫机所必需的构件结构,例如朝缝制行进方向对纤维布料进行移送的送布牙,除此之外,也不再需要使用将缝线贯穿纤维布料的机针及机针的上下往复运动机构、为了进行链锁状缝制或链环状缝制的底线供给用的梭子及梭子的动作机构或者弯针线供给用的弯针及弯针的动作机构等用于构成缝制的多个复杂的机构及其构件,能实现缝纫机整体结构的简化。
背景技术
然而,与普通缝制式缝纫机相比,作为实现结构简化的现有的高频缝纫机,如以往在日本特许公开公报的特开平6-218819号、特开平6-155576号中公开的那样,采用了如下方法:将被加工材料(可热塑性的树脂片或树脂薄膜)夹在上下一对电极辊子之间,连续地沿一定方向移送,并向该一对电极辊子之间通入高频电,通过高频感应加热使被加工材料本身熔化,从而粘接被加工材料的重叠部。
此外,如日本特许公报的特许第4022539号中公开的那样,还提出有采用如下结构的高频缝纫机,通过安装有单向传动离合器的运动变换机构,将夹住被加工材料并沿一定方向移送的上下一对电极辊子与驱动电动机连动式连结,从而使一对电极辊子进行间歇旋转。
上述特开平6-218819号公报、特开平6-155576号公报、特许第4022539号公报中公开的以往的高频缝纫机都是在一对电极辊子的接触部分形成仅为辊子宽度的线接触(从被加工材料的移送方向看时为点接触)。为了在这种线接触或点接触条件下也能获得可靠的粘接强度,必须采取如下任一种方法:将通入的高频电设定成较高值,或减慢被加工材料的移送速度。
采用提高高频电的值的方法时,由于该高值的高频电所产生的热量集中作用于线接触或点接触部,因此会容易破坏被加工材料绝缘,出现烧坏或破洞(穿孔)等不良现象。尤其在被加工材料是作为本发明对象的薄料纤维布料的情形下,因烧坏范围容易瞬间扩大,故存在制造出许多不合格制品的问题。
另外,在采用将高频电的值设定得较小并减慢一对电极辊子移送速度的方法时,存在加工效率急剧降低的问题。这种因线接触或点接触所引起的问题即使在如特许第4022539号公报中公开的那样,采用使一对电极辊子间歇旋转的结构的情形下,也同样会发生,不可避免地会出现不合格制品的产生和加工效率降低的情形。
此外,在将纤维布料作为对象材料来制造加工服装产品时,例如女性用内衣等加工中所见的那样,需要接合曲线状部位的情形很多。此外,还有许多使用具有伸缩性的纤维布料的情况。对于制造加工服装产品用的缝纫机,也希望能应对这种曲线状部位的接合和伸缩性纤维布料的接合。
然而,在使用将被加工材料夹在一对电极辊子之间并沿一定方向进行直线移送的以往的高频缝纫机时,则不能完全应对曲线状部位的接合和伸缩性布料的接合。即,使用一对电极辊子的以往的高频缝纫机能适用于一边将树脂片这样的非伸缩性被加工材料直线式移送一边对重叠部进行粘接加工的情形,但对于将纤维布料作为对象材料、曲线状部位的接合多、多使用伸缩性材料的服装产品的制造加工则不适用,要想将以往的高频缝纫机直接转用于纤维布料接合,可以说实际上是不可能的。
发明内容
本发明鉴于上述实际情况而作,其目的在于提供如下一种高频缝纫机,不仅能使用高频电来获得可靠且均匀的粘接强度,还能防止产生烧坏或破洞等不合格制品的制造加工,且能完全应对曲线状部位和伸缩性纤维布料的粘接,而且能进行非常高效的粘接加工。
为实现上述目的,本发明所涉及的高频缝纫机包括:将在纤维布料的重叠部之间夹有可热塑性树脂带条的被加工材料装载成可滑动接触地移动的被加工材料装载板;配置于该被加工材料装载板的下部,通过水平运动与上下运动的组合,沿水平面朝特定方向将装载于被加工材料装载板上的被加工材料间歇移送的间歇移送装置;与该间歇移送装置协同配合,朝所述特定方向移送被加工材料,并按压被加工材料以使其不上浮的压脚;以及配置于所述被加工材料装载板的上部的上部面状电极、在所述被加工材料装载板下部配置成与该被加工材料装载板的上表面齐平状态的下部面状电极,在该高频缝纫机中,通过向所述上部和下部一对面状电极之间通入高频电,以高频感应加热方式使所述可热塑性树脂带条熔化来连续地粘接纤维布料的重叠部,其特征是,所述间隙移送装置具备有移送传感器和高频电控制部,所述移送传感器检测被加工材料是处于移送动作中还是处于移送停止中,所述高频电控制部在移送停止中和移送动作中对通入一对面状电极的高频电的值进行自动切换控制,以在该移送传感器检测到间隙移送装置处于停止被加工材料的移送时,向所述一对面状电极之间通入规定值的高频电,在移送传感器检测到间隙移送装置处于移送被加工材料的动作时,通入比所述移送停止时的值小的高频电。
根据上述结构的本发明的高频缝纫机,在普通缝制式缝纫机所具备的间歇移送装置与压脚的协同作用下,沿水平面对包含纤维布料的被加工材料进行间歇移送,并在停止该移送时,将通入上下一对面状电极之间的高频电所产生的热量传递到夹在纤维布料的重叠部之间的可热塑性树脂带条,能使树脂带条以面状即以一定面积单位熔化,从而可依次粘接纤维布料的重叠部。此外,还可对同一部位进行重复粘接。由此,通过通入较小的高频电进行重复粘接,不仅能得到可靠且均匀的粘接强度,而且能使高频电所产生的热量分散于一对电极的面接触部,而不会集中于线接触部或点接触部。因此,能避免因高频电产生的热量集中于极小面积部所造成的纤维布料烧坏或破洞(穿孔)等不良部位的产生,不仅能获得如上所述那样的可靠且均匀的粘接强度,且即使对象材料是抗热性差的纤维布料,也能可靠地制造加工出品质优良的服装制品。
此外,由于作为被加工材料的移送装置采用的是利用间歇移送装置与压脚协同配合的移送装置,其中,所述间歇移送装置在与被加工材料的下表面抵接、沿水平面朝特定的加工进行方向移送该被加工材料的状态和从该被加工材料的下表面离开而停止该被加工材料移送的状态间交替重复,所述压脚在该间歇移送装置进行移送时,为使被加工材料不上浮而将该被加工材料按压于被加工材料装载板侧,因此,在停止移送时可克服下降的压脚的按压力,任意进行被加工材料的方向转换,并不限定于直线,还可容易地进行自由的曲线移送。此外,即使在将具有伸缩性的纤维布料作为对象的情形下,也能在保持自然的状态下进行移送,而不会对该纤维布料作用过度的夹压力。即,也能完全应对曲线状部位和伸缩性纤维布料的粘接。因此,能提供一种对于曲线状部位多或多使用具有伸缩性的纤维布料的服装产品制造加工来说非常适合且实用的高频缝纫机。
并且,在移送传感器检测到被加工材料处于移送动作中时,切换控制成向电极通入比移送停止中通入电极的高频电的值、即可通过感应加热粘接纤维布料重叠部的值小的高频电,藉此,由于在从移送停止切换到移送动作时通入一对电极之间的高频电变小,因此,能充分避免在一对电极之间产生电火花并由此原因而造成的纤维布料烧坏或破洞(穿孔)等不良部位的产生,此外,尽管在移送动作中通入的电流值比移送停止中通入的电流值小,但一直通入有高频电,因此,从移送动作切换到移送停止后,立刻就会因一对电极的感应加热而快速开始升温。籍此,作业者在进行曲线状部位的粘接加工等时可任意且安全地降低移送速度,能非常容易地进行粘接加工操作,并且,即使在直线部的粘接加工时加快被加工材料移送速度的情形下,也能快速地使树脂带条加热熔化,能使纤维布料的重叠部粘接确实牢固。因此,不会导致成品率的下降,可获得提高粘接加工效率的效果。
在本发明所涉及的高频缝纫机中,高频电控制部也可采用在移送被加工材料的动作中将通入一对面状电极的高频电的值切换控制为零的结构。
此外,在本发明所涉及的高频缝纫机中,作为间歇移送装置,最好是采用如下结构的间歇移送装置,即由配置于在所述被加工材料装载板上形成的切槽状长孔内的送布牙和使该送布牙在所述切槽状长孔内进行上下方向及水平方向的合成循环运动的送布牙驱动机构所构成。
该情形下,作为以往公知的普通缝制式缝纫机所具备的由送布牙和送布牙驱动机构构成的众所周知的间歇移送装置,可将原已确立的制造技术及组装技术原封不动地加以有效利用。因此,可大幅度降低开发、制造高频缝纫机专用且特殊的间歇移送装置及为了组装该装置而将缝纫机底座部改变成与缝制式缝纫机的结构大不同的结构时的设计方面、生产方面的负担。其结果是,能获得一种能实现高频缝纫机整体的生产性的提高和生产成本的降低、且性能和品质优良的高频缝纫机。
此外,在本发明所涉及的高频缝纫机中,最好是采用将所述压脚兼用作所述上部和下部一对面状电极中的上部面状电极的结构。
该情形下,由于与间歇移送装置协同配合来间歇移送被加工材料的压脚本身兼用作上部面状电极,故不需要在压脚之外另设上部电极。因此,能减少构成构件,也不需要在压脚的存在部位再另配置固定上部电极、使压脚绝缘化而花费特殊的工夫,能容易地实现整体结构的进一步简化和成本的进一步降低。
此外,在本发明所涉及的高频缝纫机中,最好使所述被加工材料装载板及间歇移送装置中的与被加工材料下表面抵接的抵接部及送布牙由包括工程塑料的电绝缘性及耐热性材料构成。
该情形下,不仅能完全确保被加工材料装载板及间歇移送装置中的与被加工材料下表面抵接的抵接部及送布牙的结构强度,而且,这些构件耐磨损性、耐腐蚀性、电绝缘性和耐热性也优良,能提高在通入高频电条件下使用的各构件的耐久性。
此外,在本发明所涉及的高频缝纫机中,最好在所述上部和下部一对面状电极中分别附设有预热用加热器。
该情形下,由于在间歇移送装置停止移送时,可通过预热将上下电极保持在规定温度,因此,不仅能将通入电极的高频电的值尽量设定得较小,从而能更可靠地防止电火花的发生,而且能可靠地将树脂带条熔化,从而稳定地得到规定的粘接强度。
此外,在本发明所涉及的高频缝纫机中,由压脚构成上部面状电极时,最好在构成所述上部面状电极的压脚与以固定状态安装于缝纫机主体来对预热该压脚的预热用加热器进行保持的加热器保持台之间,嵌装有将两者连接成可上下相对滑动的热传导性构件。
该情形下,能尽量抑制压脚(上部电极)的重量增加,使移送被加工材料的作用更加顺畅,且能容易地进行用于曲线移送的操作,还能通过热传导性构件将预热用加热器的热量有效地传递到压脚,能通过电极的预热效果来防止电火花的发生,并能确保稳定性良好的粘接强度。
此外,在本发明所涉及的高频缝纫机中,除了所述移送传感器外,最好还具备检测所述送布牙所进行的被加工材料移送的速度的速度传感器,所述高频电控制部采用由所述速度传感器检测出的移送速度越快、移送停止中通入的高频电的值就越大的控制结构。
该情形下,由于采用移送速度越快、移送停止中通入的高频电的值就越大的控制结构,能将因感应加热所引起的电极升温速度确保在与被加工材料的移送速度大致呈正比的速度,因此,不会产生粘接不良、粘接不完整等现象,可提高粘接加工效率。
此外,在本发明所涉及的高频缝纫机中,除了所述移送传感器外,最好还具备检测由所述间隙移送装置所进行的被加工材料移送的速度的速度传感器,所述高频电控制部采用以下控制结构,无论所述速度传感器检测出的移送速度怎样,在移送停止中以一定时间通入在最大移送速度下可粘接纤维布料重叠部的规定值的高频电。
该情形下,由于在停止被加工材料的移送中,以一定时间通入规定值的高频电,因此,尽管移送速度变化,也能可靠地进行所规定的粘接加工,并且,还可容易地进行高频电的调整,以应对纤维布料的种类和耐热性。
此外,在本发明所涉及的高频缝纫机中,最好用旋转相位传感器来兼用所述移送传感器和速度传感器,该旋转相位传感器安装于缝纫机主轴来检测所述送布牙进行的被加工材料间隙移送的旋转相位。
该情形下,由于在缝纫机主轴上仅安装单一的旋转相位传感器,就能发挥移送传感器和速度传感器的功能,因此,与另设两个传感器的情形相比,可实现结构简化和低成本化,并且,不会发生两个传感器检测时间的错位,能根据两个传感器的检测结果正确且合适地进行高频电的调整等。
此外,在本发明所涉及的高频缝纫机中,除了所述移送传感器和速度传感器外,最好还具备检测被加工材料是否已装载到所述送布牙上的被加工材料传感器,在该被加工材料传感器检测到装载有被加工材料时,由所述高频电控制部执行控制动作,在未检测到装载有被加工材料时,所述高频电控制部不执行控制动作。
该情形下,可防止在送布牙上未装载有被加工材料的状态下错误地通入高频电这种故障和不良的产生。
其它本发明的特征结构及由其产生的效果可在以下说明的实施方式中得以明确。
附图说明
图1是将本发明的高频缝纫机整体局部剖切表示的外观立体图。
图2是上述缝纫机主要部分的放大立体图。
图3是上述缝纫机主要部分的放大纵剖侧视图。
图4是表示上述缝纫机的送布牙结构的分解立体图。
图5是说明上述缝纫机的上部面状电极的安装状态的分解立体图。
图6是说明上述缝纫机的下部面状电极的安装状态的分解立体图。
图7是表示上述缝纫机的控制系统的结构的方框图。
图8是表示上述缝纫机的控制控制动作的一例的时间图。
图9是说明上述缝纫机的控制动作的流程图。
图10是表示上述缝纫机的控制动作的另一例的时间图。
(符号说明)
1缝纫机主体
4布料装载板
8(8A、8B)送布牙
12兼用作压脚的上部面状电极
16下部面状电极
25、28预热用筒式加热器
40高频振荡器
41高频匹配装置
42移送传感器
43速度传感器
44被加工材料传感器
45控制电路(高频电控制部)
46缝纫机主轴
47旋转相位传感器
W纤维布料
T可热塑性树脂带条
H被加工材料
具体实施方式
以下,参照附图对本发明的实施方式进行说明。
图1是将本发明的高频缝纫机整体局部剖切表示的外观立体图,图2是上述缝纫机主要部分的放大立体图,图3是上述缝纫机主要部分的放大纵剖侧视图,图4是表示上述缝纫机具有的送布牙结构的分解立体图。
在图1~图3中,符号1是缝纫机主体,该缝纫机主体1由缝纫机机臂部2和缝纫机底座部3构成。在所述缝纫机底座部3的上壁部安装有将包含缝制布料W的被加工材料H装载成可滑动接触地移动的被加工材料装载板(该构件相当于缝制式缝纫机中的针板)4和滑板5。该两个构件各自的上表面与缝纫机底座部3的上表面大致齐平。
所述被加工材料装载板4采用例如聚酰胺、聚缩醛、ABS、聚碳酸酯等结构材料,并由具有耐磨损性、耐腐蚀性、电绝缘性和耐热性的材料即工程塑料构成。
如图2和图6所示,在所述被加工材料装载板4上,贯穿形成有相互平行的四列切槽状长孔6。在该四列切槽状长孔6中,位于被加工材料装载板4的宽度方向中央部的二列切槽状长孔6a在其长度方向的中间位置上,隔有后述的下部面状正电极16的设置用孔7,在加工进行方向X上被分割成前后二段。在所述四列长孔6内设置有送布牙8,该送布牙8通过水平方向运动与上下方向运动的组合(合成运动),将装载于被加工材料装载板4上的被加工材料H沿着水平面朝特定方向、即加工进行方向X间歇地移送。
另外,作为被加工材料装载板4的构成材料,最好是使用由聚醚醚酮类树脂组成的超级工程塑料。此时,能进一步提高被加工材料装载板4的耐热性和耐磨损性。
如图4所示,所述送布牙8由前送布牙8A和后送布牙8B构成,前送布牙8A具有在分割为前后二段的切槽状长孔6a的前部长孔部分内进行运动的短送布牙8a,后送布牙8B具有在切槽状长孔6a的后部长孔部分内进行运动的短送布牙8b。这些前送布牙8A和后送布牙8B采用例如聚酰胺、聚缩醛、ABS、聚碳酸酯等结构材料,并由具有耐磨损性、耐腐蚀性、电绝缘性和耐热性的材料即工程塑料构成,此外,这些前送布牙8A和后送布牙8B被止动螺钉10A、10B固定在设置于被加工材料装载板4下部的缝纫机底座部3内的前送布牙安装台9A和后送布牙安装台9B上。
此外,作为前送布牙8A和后送布牙8B的构成材料,与被加工材料装载板4一样,最好使用由聚醚、醚、酮类树脂组成的超级工程塑料。此时,能进一步提高前送布牙8A和后送布牙8B的耐热性和耐磨损性。
所述前送布牙安装台9A和后送布牙安装台9B与组装于缝纫机底座部3内的驱动机构连动式连结,以使前送布牙8A和后送布牙8B重复进行上述合成运动。该送布牙驱动机构具有与普通缝制式缝纫机中采用的结构完全相同的结构,为大家所知,故省略其驱动机构的具体结构的说明。
通过上述送布牙8(前送布牙8A和后送布牙8B)和送布牙驱动机构,构成使被加工材料H交替重复朝加工进行方向X移送的状态和停止移送状态的间歇移送装置。
在所述被加工材料装载板4的上部、与所述送布牙8的前送布牙8A和后送布牙8B相对的部位配置有压脚12,该压脚12与这些送布牙8(送布牙8的前送布牙8A和后送布牙8B)协同配合,将被加工材料H朝加工进行方向X移送,且为使被加工材料H不上浮,将被加工材料H按压于送布牙8一侧。该压脚12通过安装配件14固定于可上下往复移动地支承于缝纫机机臂部2前端部的压杆13的下端部。该压杆13采用可升降移动的结构,通过组装于缝纫机机臂部2内的驱动机构,在所述送布牙8起送料作用时上升移动,解除对被加工材料H的按压,在停止送料时下降移动,通过压脚12弹性地按压被加工材料H。
压杆13的升降移动用驱动机构具有与普通缝制式缝纫机中采用的结构完全相同的结构,为大家所知,故省略其驱动机构的具体结构的说明。
所述压脚12的按压面12a至少形成有送布牙8的送料作用宽度以上的宽度,此外,如图5所示,在该压脚12的侧面连接有从高频匹配装置41(参照图7)导出的负电极线15。由此,压脚12兼用作从高频振荡器40经由高频匹配装置41(参照图7)通入高频电的一对电极中的上部面状负电极。
根据以上结构,由压脚12兼用的上部面状负电极的结构是,在由压脚8进行的被加工材料H的移送动作中可上升移动,以离开后述的下部面状正电极,且在由压脚8进行的被加工材料H的移送停止中可下降移动,以接近下部面状正电极。
如图2和图6所示,在所述被加工材料装载板4下部的缝纫机底座部3的内部,固定有朝上方开放的电极安装台17。在该电极安装台17的上表面部形成的凹槽17a内,下沉式嵌合有侧面部与从高频匹配装置41导出的正电极线19连接的下部面状正电极16,且通过止动螺钉18固定于电极安装台17。该下部面状正电极16被设置固定成具有一定面积的电极面16a靠近所述被加工材料装载板4中形成的设置用孔7,且与被加工材料装载板4的上表面大致齐平。
此外,如图2和图5所示,在通过止动螺钉29固定于所述缝纫机机臂部2的安装台20上,通过止动螺钉22固定有工程塑料制的绝缘块21,在通过止动螺钉23固定于该绝缘块21的筒式加热器保持台24上,插入保持有预热用筒式加热器25。
在所述预热用筒式加热器保持台24的下方部,形成有分叉状的上下滑动槽24a,另一方面,在由所述压脚兼用的上部面状负电极12的加工进行方向X的前面,通过止动螺钉28固定有具有可卡合于所述上下滑动槽24a内的卡合片部27a的热传导性构件27。将该热传导性构件27的卡合片部27a可上下方向相对滑动地卡合于预热用筒式加热器保持台24的上下滑动槽24a内,藉此,通过热传导性构件27能始终将所述预热用筒式加热器25产生的预热(加热)热量传递到面状负电极12,将该负电极12保持成高温。
并且,如图6所示,在固定于所述电极安装台17的下部面状正电极16的水平基端部16b内,插入保持有预热用筒式加热器28。由此,能始终将预热用筒式加热器28产生的预热(加热)热量传递到面状正电极16,从而可将该面状正电极16保持在高温。
另外,为了将所述上部面状负电极12和下部面状正电极16的预热温度反馈控制在一定温度,在预热用筒式加热器保持台24的侧面安装热(温度)传感器30,而在下部面状正电极16的侧面安装热(温度)传感器31。
除了上述的各构成要素外,本发明的高频缝纫机还采用如图7所示的结构、即采用控制从高频振荡器40通入一对面状电极12、16之间的高频电输出功能的结构。
在图7中,符号42是检测所述送布牙8是处于移送被加工材料H的动作中还是处于停止被加工材料H的移送中的移送传感器,符号43是检测所述送布牙8移送被加工材料H的速度的速度传感器,符号44是检测被加工材料H是否已装载于被加工材料装载板4的送布牙8上的被加工材料传感器,符号45是作为外加电压控制部的控制电路。
如图1所示,所述移送传感器42和速度传感器43由单一的旋转相位传感器47兼用,所述旋转相位传感器47安装于驱动旋转自如地支承在缝纫机主体1的缝纫机机臂部2内的缝纫机主轴46上,检测所述送布牙8所进行的被加工材料H的间歇移送的旋转相位(缝纫机主轴46的旋转角度)。作为该旋转相位传感器47,例如使用光电传感器或利用磁性的非接触式传感器。
如图1和图2所示,作为所述被加工材料传感器44采用光电传感器,该光电传感器由安装于缝纫机机臂部2的前下端部的发光/受光器48和靠近送布牙8且安装于被加工材料装载板4的上表面的反射板49构成。
此外,所述控制电路45的结构是输入所述移送传感器42、速度传感器43和被加工材料传感器44的各种检测信号,根据这些各种检测信号,对高频振荡器41所进行的高频电的产生、停止以及所产生的高频电大小执行控制。
详细地说,如图8的时间图所示,控制电路45的结构如下,在被加工材料传感器44检测到送布牙8上已装载有被加工材料H时,向高频振荡器40输出用于产生高频电用的控制信号。此外,在被加工材料传感器44未检测到送布牙8上装载有被加工材料H时,向高频振荡器40输出用于停止产生高频电用的控制信号。由此,控制电路45根据送布牙8上是否装载有被加工材料H,对高频振荡器40所进行的高频电的产生、停止执行控制。
此外,在被加工材料传感器44检测到送布牙8上已装载有被加工材料H的条件下,一对电极12、16靠近移动,在移送传感器42检测到送布牙8停止被加工材料H的移送时,从控制电路45向高频振荡器40输出产生预定的规定值的高频电P1的控制信号,并将所产生的规定值的高频电P1通入一对面状电极12、16之间。此外,一对电极12、16远离移动,在检测到送布牙8处于移送动作中时,从控制电路45向高频振荡器40输出产生比移送停止中的值小的设定值的高频电P2的控制信号,并将所产生的比移送停止中的值小的高频电P2通入一对面状电极12、16之间。这样,控制电路45在送布牙8进行的移送停止中和移送动作中能对通入一对面状电极12、16之间的高频电值自动大小切换控制。
所谓在送布牙8停止被加工材料H的移送中产生的高频电P1的值,即是感应加热的一对电极12、16将树脂带条T熔化而使纤维布料W的重叠端部粘接所必需且足够的值。此外,在送布牙8进行被加工材料H的移送动作中产生的高频电P2的值不是零,而是比所述移送停止中的高频电P1稍小的值,这些值可根据作为粘接加工对象的纤维布料W的耐热性等事前设定。
并且,在移送传感器42检测到送布牙8停止被加工材料H的移送时,通入一对面状电极12、16之间的高频电P1的值按照下述方式执行控制,即速度传感器43检测到的被加工材料移送速度越快,高频电P1的值就越大,而该高频电P1的通入时间则越短。
即,通过通入高频电而被感应加热的一对电极12、16的加热温度由高频电的值×通入时间来决定。因此,所谓与被加工材料移送速度对应的高频电P1和通入时间的控制,即是不受移送速度变化的影响将一对电极12、16的加热温度大致保持稳定的控制。例如,可按照移送速度快时的高频电Ph1×通入时间t1≒移送速度慢时的高频电Ph2×通入时间t2的关系来设定。
另外,在本说明书中,所谓“移送停止中”不限定于送布牙8进行的被加工材料H的送料完全停止的状态,还包含从即将完全停止前的时间或完全停止稍后的时间开始一直到即将开始移送前的时间或开始移送稍后的时间。这样的时间可通过设定变更检测缝纫机主轴46的旋转角度的旋转相位传感器47的检测相位(旋转角度)来进行任意调整。此外,所谓“移送动作中”随着“移送停止中”的时间的设定而自动确定。
参照图9的流程图对上述结构的高频缝纫机的粘接加工动作进行说明。
首先,如图2和图3所示,在被加工材料装载板4的靠前部位,例如准备将纤维布料W的端部等折返使其上下重叠并在该重叠端部之间夹入表里双面形成粘接面的可热塑性树脂带条即热熔带条(例如日东纺会社的商标名称“ダンヒユ一ズ”)T的被加工材料H。
一旦将该准备好的被加工材料H装载(定位)在被加工材料装载板4的上表面,由被加工材料传感器44检测在送布牙8上是否已装载有被加工材料H(步骤ST11)。
在步骤ST11中,在被加工材料传感器44未检测到被加工材料H向送布牙8上的装载时,从控制电路45向高频振荡器40输出用于停止高频电产生的控制信号,由高频振荡器40产生的高频电处于停止状态(步骤ST12)。
在被加工材料传感器44检测到在送布牙8上装载有被加工材料H时,缝纫机开始旋转,在送布牙8(送布牙8的前送布牙8A和后送布牙8B)的合成运动与压脚12的上下往复运动的协同作用下,开始将被加工材料H朝规定的加工进行方向X间歇地移送(步骤ST13)。
在该间隙移送时,利用旋转相位传感器47的移送传感器42检测送布牙8是处于移送被加工材料H动作中还是处于停止移送中(步骤ST14)。
在步骤ST14中,在移送传感器42检测到处于移送动作中时,从控制电路45向高频振荡器40输出产生高频电P2的控制信号,由该高频振荡器40产生比移送停止中的值小的高频电P2,将该高频电P2通入一对面状电极12、16之间(步骤ST15)。
另一方面,在送布牙8进行的被加工材料H的间隙移送时,由速度传感器43检测被加工材料H的移送速度(步骤ST16),且判定移送速度的快慢(步骤ST17)。
在步骤ST17中,在判定为移送速度慢时,从控制电路45向高频振荡器40输出产生高频电Ph2的控制信号,由该高频振荡器40产生比移送动作中的值高但比移送速度快的情形的值小的高频电Ph2,并将该高频电Ph2通入一对面状电极12、16之间(步骤ST18)。
此外,在步骤ST17中,在判定为移送速度快时,从控制电路45向高频振荡器40输出产生高频电Ph1的控制信号,由该高频振荡器40产生比移送速度慢的情形下的值更高的高频电Ph1,并将该高频电Ph1通入一对面状电极12、16之间(步骤ST19)。
由此,在每次移送停止期间,向上下一对面状电极12、16之间通入与移送速度对应的值的高频电Ph1或Ph2,通过该通入的高频电Ph2或Ph1的感应加热,将一对面状电极12、16加热到规定温度,从而使夹在纤维布料W的重叠端部之间的可热塑性树脂带条T以一定面积单位熔化,通过该熔化的树脂带条T可依次粘接纤维布料W的重叠端部相互间,还可对同一部位进行重复粘接。
如以上所述,由于被加工材料H是以一定面积单位的面接触状态加热熔化粘接而成的,因此,即使向一对电极12、16通入较高的高频电,也能使该高值的高频电产生的热量分散于一对电极12、16的面接触部,而不会集中于线接触部或点接触部。由此,能避免因热量集中于极小面积部所引起的纤维布料W的烧坏、破洞(穿孔)等不良部位的产生。因此,不存在因热集中造成的不良部位的产生,由于通入较高的高频电,从而能获得可靠且均匀的粘接强度,藉此,即使被加工材料H是抗热性差的纤维布料W,也能可靠且稳定地制造加工出品质优良的制品。
此外,由于被加工材料H的移送装置是利用送布牙8与压脚12的协同配合的移送装置,因此,并不限定于直线移送,还可容易地进行任意的曲线移送,其中,所述送布牙8通过水平运动与上下运动的组合,沿着被加工材料装载板4上表面的水平面朝加工进行方向X进行间歇移送,所述压脚12在该送布牙8进行移送时,为使包含纤维布料W的被加工材料H不上浮而将其按压于被加工材料装载板4一侧。此外,即使是使用具有伸缩性的纤维布料W的情形,也能在保持自然的状态下进行移送,而不会对该布料W施加过度的夹压力。由此,即使是曲线状部位多或多使用具有伸缩性的纤维布料的服装产品,也完全能应对,能可靠且稳定地进行规定的粘接加工。
并且,使用移送传感器42,在检测到被加工材料H处于移送动作中时,由于切换控制成向电极12、16通入比移送停止中通入电极12、16的高频电的值、即可通过感应加热粘接纤维布料W重叠端部的值小的高频电,使得在从移送停止切换到移送动作时通入一对电极12、16之间的高频电较小,因此,能充分避免在一对电极12、16相互远离时在电极12、16之间产生电火花并由此原因而造成的纤维布料W烧坏、破洞(穿孔)等不良部位的产生,此外,尽管电流值比移送停止中的电流值小,但在移送动作中也通入高频电,因此,在从移送动作切换到移送停止后,立即就会因一对电极12、16的感应加热而快速开始升温。籍此,作业者在进行曲线状部位的粘接加工等时可自由地降低移送速度,能非常容易地进行作业操作,并且,即使在直线部加快被加工材料H的移送速度的情形下,也能快速且可靠地使树脂带条T熔化,能将纤维布料W的重叠端部确实牢固地粘接。籍此,不会导致成品率的下降,可进行高效率的粘接加工。
此外,如上述的实施方式所述,由于压脚12本身兼用作上部面状电极,故不需要在压脚12外另设上部电极。由此,不仅能减少构成构件,也不需要在压脚12的存在部位再配置上部电极,或在压脚的电绝缘性上进行特殊结构的研究。藉此,使整体结构更加简化,还可容易地实现成本降低。
此外,如上述实施方式所述,在被加工材料装载板4和送布牙8由工程塑料或超级工程塑料之类的耐磨损性、电绝缘性及耐热性优良的材料构成的情形下,不仅能完全地确保这些被加工材料装载板4和送布牙8的结构强度,且由于耐磨损性、耐腐蚀性、电绝缘性和耐热性也优良,能提高在通入高频电条件下使用的各构件4、8的耐久性。
此外,如上述实施方式所述,在所述一对面状电极12、16中分别附设预热用筒式加热器25、28的情形下,即使在送布牙8发挥送料作用时,也可利用预热将一对电极12、16保持在高温。因此,在移送停止中,尽量将通入电极12、16的高频电设定成较小值,能更可靠地防止因过度加热所引起的烧坏等情形的发生,并能始终可靠地将树脂带条T熔化,从而能稳定地获得规定的粘接强度。
并且,在采用压脚12兼用作上部面状电极的结构的情形下,在兼用作上部面状电极的压脚12与固定于缝纫机机臂2且对预热该压脚12的预热用筒式加热器25进行保持的筒式加热器保持台29之间,嵌装有能将两者12、29连接成可上下相对滑动的热传导性构件27,藉此,能尽量抑制压脚(上部电极)12的重量增加,使包含纤维布料W的被加工材料H的移送作用顺畅地进行,且便于克服压脚12的重量所进行的曲线移送操作,还能通过热传导性构件27将预热用筒式加热器25的热量更有效地传递到压脚12,通过电极12的预热效果能防止烧坏等情形的发生,并能确保稳定性良好的粘接强度。
此外,在上述实施方式中,公开了压脚12本身兼用作上部面状电极的例子,但也可除压脚12外再另设上部面状电极。该情形下,压脚12需要采用工程塑料或超级工程塑料等结构材料,并由耐磨损性、电绝缘性和耐热性优良的材料构成。
此外,在上述实施方式中,公开了采用安装于缝纫机主轴46上的单一的旋转相位传感器47来兼用作被加工材料H的移送传感器42和速度传感器43的例子,但也可另外分别设置移送传感器42和速度传感器43。
此外,在上述实施方式中,作为预热用加热器,采用的是筒式加热器的结构,但不限定于此例,也可固定组装电热式加热器等。
此外,在上述实施方式中,如图8的时间图所示,公开的例子是在由移送传感器42检测到送布牙8处于停止被加工材料H的移送时,按照下述方式进行控制,使通入一对面状电极12、16之间的高频电P1的值随着速度传感器43所检测出的被加工材料移送速度越快而越大,而该高频电P1的通入时间则越短。但不限定于此,也可如图10的时间图所示,设定成无论由速度传感器43检测出的被加工材料移送速度怎样,在移送停止中始终执行以一定时间t1通入规定值的高频电P1的控制。
其中,移送停止中通入的一定的高频电Ph1和一定的通入时间t1当然是设定成如下的值,即由两者的积(Ph1×t1)所决定的对于一对电极12、16的感应加热温度即使在最大移送速度时也能提供将纤维布料W的重叠端部等粘接所必需且足够的温度。
如上所述,在移送停止中,在设定成执行尽管移送速度变化也始终以一定时间t通入一定的高频电Ph1的控制时,也能容易地进行高频电的调整,以应对纤维布料的种类和耐热性。
并且,在上述实施方式中,说明了在移送动作中通入一对电极12、16的高频电的值不是零而是比在移送停止中通入的高频电的值小的值的方式来进行切换控制的例子。不限定于此,例如也可采用将移送动作中通入的高频电的值切换控制为零的结构。

Claims (11)

1.一种高频缝纫机,包括:
将在纤维布料的重叠部之间夹有可热塑性树脂带条的被加工材料装载成可滑动接触地移动的被加工材料装载板;
配置于该被加工材料装载板的下部,通过水平运动与上下运动的组合,沿水平面朝特定方向将装载于被加工材料装载板上的被加工材料间歇移送的间歇移送装置;
与该间歇移送装置协同配合,朝所述特定方向移送被加工材料并按压被加工材料以使其不上浮的压脚;以及
配置于所述被加工材料装载板上部的上部面状电极、在所述被加工材料装载板下部配置成与该被加工材料装载板的上表面齐平状态的下部面状电极,
通过向所述上部和下部一对面状电极之间通入高频电,利用高频感应加热使所述可热塑性树脂带条熔化,来连续地粘接纤维布料的重叠部,其特征在于,
所述间隙移送装置具备移送传感器和高频电控制部,所述移送传感器检测被加工材料是处于移送动作中还是处于移送停止中,所述高频电控制部在移送停止中和移送动作中对通入一对面状电极的高频电的值进行自动切换控制,以在该移送传感器检测到间隙移送装置处于停止被加工材料的移送时,向所述一对面状电极之间通入规定值的高频电,在所述移送传感器检测到间隙移送装置处于移送被加工材料的动作时,通入比所述移送停止时的值小的高频电。
2.如权利要求1所述的高频缝纫机,其特征在于,
所述高频电控制部采用在移送所述被加工材料的动作中将通入一对面状电极的高频电的值切换控制为零的结构。
3.如权利要求1所述的高频缝纫机,其特征在于,
所述间歇移送装置由送布牙和送布牙驱动机构构成,所述送布牙配置于在所述被加工材料装载板上形成的切槽状长孔内,所述送布牙驱动机构使该送布牙在所述切槽状长孔内进行上下方向及水平方向的合成循环运动。
4.如权利要求1所述的高频缝纫机,其特征在于,
在所述上部和下部一对面状电极中,上部面状电极由所述压脚兼用。
5.如权利要求1所述的高频缝纫机,其特征在于,
所述被加工材料装载板及间歇移送装置中与被加工材料下表面抵接的抵接部由包括工程塑料的电绝缘性及耐热性材料构成。
6.如权利要求1或4所述的高频缝纫机,其特征在于,
在所述上部和下部一对面状电极中分别附设预热用加热器。
7.如权利要求1所述的高频缝纫机,其特征在于,
除了所述移送传感器外,还具备检测所述间隙移送装置所进行的被加工材料移送的速度的速度传感器,所述高频电控制部采用所述速度传感器检测到的移送速度越快、移送停止中通入的高频电的值就越大的控制结构。
8.如权利要求1所述的高频缝纫机,其特征在于,
除了所述移送传感器外,还具备检测所述间隙移送装置所进行的被加工材料移送的速度的速度传感器,所述高频电控制部采用以下控制结构,无论所述速度传感器检测到的移送速度怎样,在移送停止中以一定时间通入在最大移送速度下可粘接纤维布料重叠部的规定值的高频电。
9.如权利要求7或8所述的高频缝纫机,其特征在于,
所述移送传感器和速度传感器由旋转相位传感器兼用,所述旋转相位传感器安装于缝纫机主轴来检测所述间隙移送装置进行的被加工材料间隙移送的旋转相位。
10.如权利要求7或8所述的高频缝纫机,其特征在于,
除了所述移送传感器和速度传感器外,还具备检测被加工材料是否已装载到所述间隙移送装置上的被加工材料传感器,在该被加工材料传感器检测到装载有被加工材料时,由所述高频电控制部执行控制动作,在所述被加工材料传感器未检测到装载有被加工材料时,所述高频电控制部不执行控制动作。
11.如权利要求6所述的高频缝纫机,其特征在于,
在兼用作所述上部面状电极的压脚与以固定状态安装于缝纫机主体且对预热该压脚的预热用加热器进行保持的加热器保持台之间,嵌装有将压脚与加热器保持台连接成能上下相对滑动的热传导性构件。
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