JPH07187153A - 包材の封止部に介在する介在物の有無の判定方法 - Google Patents

包材の封止部に介在する介在物の有無の判定方法

Info

Publication number
JPH07187153A
JPH07187153A JP35168493A JP35168493A JPH07187153A JP H07187153 A JPH07187153 A JP H07187153A JP 35168493 A JP35168493 A JP 35168493A JP 35168493 A JP35168493 A JP 35168493A JP H07187153 A JPH07187153 A JP H07187153A
Authority
JP
Japan
Prior art keywords
packaging material
sealing
sealing portion
inclusions
thickness
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
JP35168493A
Other languages
English (en)
Other versions
JP3473861B2 (ja
Inventor
Masao Fukuda
雅夫 福田
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.)
Ishida Co Ltd
Original Assignee
Ishida Co Ltd
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=18418925&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=JPH07187153(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ishida Co Ltd filed Critical Ishida Co Ltd
Priority to JP35168493A priority Critical patent/JP3473861B2/ja
Priority to US08/345,180 priority patent/US5551206A/en
Priority to EP19940309303 priority patent/EP0661212B1/en
Priority to DE69418297T priority patent/DE69418297T2/de
Publication of JPH07187153A publication Critical patent/JPH07187153A/ja
Application granted granted Critical
Publication of JP3473861B2 publication Critical patent/JP3473861B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • 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
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8351—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws
    • B29C66/83541—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws flying jaws, e.g. jaws mounted on crank mechanisms or following a hand over hand movement
    • B29C66/83543—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws flying jaws, e.g. jaws mounted on crank mechanisms or following a hand over hand movement cooperating flying jaws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/743—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/737—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
    • B29C66/7373—Joining soiled or oxidised materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81415—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled
    • B29C66/81417—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled being V-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81427—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81431—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8225—Crank mechanisms
    • 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
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/824—Actuating mechanisms
    • B29C66/8246—Servomechanisms, e.g. servomotors
    • 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
    • B29C66/849—Packaging machines
    • B29C66/8491—Packaging machines welding through a filled container, e.g. tube or bag
    • 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
    • B29C66/87—Auxiliary operations or devices
    • B29C66/872—Starting or stopping procedures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/922—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by measuring the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/9221—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by measuring the pressure, the force, the mechanical power or the displacement of the joining tools by measuring the pressure, the force or the mechanical power
    • B29C66/92211—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by measuring the pressure, the force, the mechanical power or the displacement of the joining tools by measuring the pressure, the force or the mechanical power with special measurement means or methods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/922—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by measuring the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/9231—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by measuring the pressure, the force, the mechanical power or the displacement of the joining tools by measuring the displacement of the joining tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/26—Devices specially adapted for producing transverse or longitudinal seams in webs or tubes
    • B65B51/30—Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes
    • 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
    • B29C66/4322—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 by joining a single sheet to itself
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81415—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled
    • B29C66/81419—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled and flat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83421—Roller, cylinder or drum types; Band or belt types; Ball types band or belt types
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/95—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94
    • B29C66/959—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 characterised by specific values or ranges of said specific variables
    • B29C66/9592—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 characterised by specific values or ranges of said specific variables in explicit relation to another variable, e.g. X-Y diagrams

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Package Closures (AREA)

Abstract

(57)【要約】 【目的】 包材の封止部に被包装物等が介在しているか
否かを判別すること。 【構成】 通常の包装動作の都度、横シールジョー３、
６の接合に伴なう負荷トルクによってサーボモータ８が
反転に転じるその際の回転角θを検出し、この回転角θ
を、被包装物を投入することなく包材を封止した際の標
準的な回転θstと比較することによって封止部に介在物
が介在しているか否かを判定するようにしたもの。

Description

【発明の詳細な説明】
【０００１】
【産業上の利用分野】本発明は、包材の封止部に介在す
る介在物の有無の判定方法に関する。
【０００２】
【従来の技術】縦型ピロー包装機に代表される包装機で
は、長尺の包材を筒状に曲成し、そこに一定量の被包装
物を投入しながら、その包材の上下を封止するような包
装方法が採られている。
【０００３】このため、この種の包装機では、投入され
た被包装物の一部が包材の封止部分に入り込まないよ
う、包材に振動等を与えて封止部分の包材内面に付着し
た被包装物の細粉を取除いたり、あるいは包材を扁平に
押し拡げて封止部分の包材にしわ等が生じないようにし
て、封止部に被包装物やしわが介在することにより生じ
る封止部の強度低下や気密性の低下を抑えるような対策
が講じられている。
【０００４】しかも、このような対策を講じても封止部
に被包装物やしわが介在するため、さらに封止する段階
で封止部材相互の接合間隙を光電的に検出したり、ある
いは圧力分布の変化として検出し、封止部に異常がある
か否かを検知するようにしている。
【０００５】ところが一般に、被包装物が入り込む位置
やしわが発生する位置は一定しておらず、また包材その
ものも部分的に厚みが異なるため、上述したような検出
手段では微細な介在物が封止部に介在しているか否かと
いった点についてまでは正確に検知することができず、
さらには、包材そのものの厚みがロット毎に異なるよう
な場合には、その都度検出機の検出範囲を設定し直さな
ければならないといった煩わしい操作が必要となる問題
を有していた。
【０００６】
【発明が解決しようとする課題】本発明はこのような問
題に鑑みてなされたもので、その目的とするところは、
封止部内の介在物の有無を簡単かつ正確に検知し得る新
たな判定方法を提案することにある。
【０００７】
【課題を解決するための手段】すなわち、本発明はこの
ような課題を達成するための包材の封止部に介在する介
在物の有無の判定方法として、はじめに、被包装物を投
入することなく包材を封止し、その際の平均的な封止部
の厚みに比例したデータを標準データとして記憶し、つ
いで、被包装物を投入しつつ行う通常の包材封止時の封
止部の厚みに比例したデータを検出し、このデータを上
記した標準データと比較することによって、包材の封止
部に介在する介在物の有無を判定するようにしたもので
ある。
【０００８】
【実施例】そこで以下に本発明の実施例について説明す
る。図１は、本発明方法に適用される原理的な横シール
機構について示したものである。
【０００９】この横シール機構１は、基体２に固定した
一方の固定側横シールジョー３と、固定側横シールジョ
ー３に対して離間接近するようリンク機構４を介してサ
ーボモータ８により動作する可動側横シールジョー６
と、これらの横シールジョー３、６の接合によって負荷
トルクがある一定値以上になると反転に転じるターンバ
ックル型式の上記サーボモータ８と、このサーボモータ
８の反転までに至る回転角を検出するロータリエンコー
ダ９とによって構成され、さらに、このロータリエンコ
ーダ９からの出力信号と、後述する標準回転角入力手段
１１からの出力信号とを比較して、両出力信号に差があ
る場合に警報手段１３に信号を出力する比較手段１２と
によって構成されている。
【００１０】つぎにこのように構成された横シール機構
１を用いて、封止部に介在する他物の有無を判定する方
法について説明する。
【００１１】はじめに、包装機の作動開始後一定時間の
間、被包装物を投入しない状態で幾つかの袋をサンプル
として成形し、一対の横シールジョー３、６が接合して
各筒状包材ｗの口部と底部を封止した際に生じる負荷ト
ルクによってサーボモータ８が反転に転じたら、そこま
でに至る回転角θ1 〜θn をロータリエンコーダ９によ
り検出し、これらの検出値のうちの異常値を除いた上、
平均回転角θm を算出し、これに包材ｗの厚み変動値に
相当する値α、βを加算、減算して、標準回転角θSTの
最大値をθm 十α最小値θm −βと決める。
【００１２】そしてつぎに、この標準回転角θstを標準
回転角入力手段１に入力した上、包装機に所定の包装動
作、つまり、包装物の投入と袋の成形とを同時に行う包
装動作を行なわせ、各包装物の成形サイクル毎にサーボ
モータ８の反転に転じるまでの回転角θ’が標準回転角
θstの範囲内にあるか否かをチェックする。
【００１３】すなわち、このようにして検出されたサー
ボモータ８の回転角θ’は、包材ｗの長手方向各部の厚
みの変動や、封止部に入り込んだ被包装物の細粉の有無
によって左右されるが、このうち、包材ｗの厚みの変動
については標準回転角θstの範囲内にあることになり、
他方、包材の厚みに対して無視し得ないような大きさの
被包装物が入り込んだか、あるいは包材のしわの部分が
折り畳まれた状態で介在したような場合には、サーボモ
ータ８の回転角θ’は、図２に示したように、標準回転
角θstの範囲からΔθだけ外れることになって、この状
態が判別できる。
【００１４】したがって、検出された回転角θ’が標準
回転角θstの範囲を越えているような場合には、比転手
段１２からの出力信号を受けた警報手段１３により封止
異常として作業者に報知される。
【００１５】図３は、本発明方法の他の実施例に適用さ
れる横シール機構について示したものである。
【００１６】この横シール機構は、例えば本出願人が特
開平５−２７８７２９号公報で提案したように、一対の
アーム２１、２１をＤ字状に旋回させつつこれらの先端
に設けた横シールジョー２３、２６によって袋の口部と
底部を同時に融着するもので、この一方のアーム２１の
支点２２を封止部の厚みにより変位させるように構成
し、この変位量δを適宜の変位検出手段２９により検出
して、変位量δが上述したようなサンプリング方法によ
って得られた標準変位量δstの許容範囲から外れている
か否かによって、介在物の有無を上述したと同様に標準
変位量入力手段３１、比較手段３２により判別して、警
報手段３３により報知するようにしたものである。
【００１７】なお、封止部の厚みの検出についてはこれ
以外に、例えば図１に示した横シール機構１における可
動側横シールジョー６のリンク端支持部材１５と基体２
との間にロードセル１６を介装し、封止部の厚みに比例
してこのロードセル１６に加わる荷重ｗが上述したサン
プリング方法により得られた標準荷重の許容範囲から外
れているか否かによって、介在物の有無を判別するよう
に構成することも可能である。
【００１８】
【発明の効果】以上述べたように本発明によれば、被包
装物を投入することなく包材を封止し、その際の封止部
の厚みのデータを標準データとし、通常の包装時におけ
る封止部の厚みのデータをこの標準データと比較して介
在物の有無を判定するようにしたので、包材の長手方向
の厚みのバラつきや、装置自体あるいは検出器自体が持
つガタや癖等に影響されることなく、封止部に入り込ん
だ被包装物や包材のしわ等の有無を正確に検知して、不
良包装物の出荷を未然に防止することができる。
【図面の簡単な説明】
【図１】本発明方法に使用される装置の原理的な構成を
示した図である。
【図２】介在物の有無により封止部材駆動モータに作用
する負荷とモータの回転角との関係を示した図である。
【図３】本発明方法に使用される他の装置の構成を示し
た図である。
【符号の説明】
３、６、２３、２６ 横シールジョー ８ サーボモータ ９ ロータリエンコーダ １６ ロードセル ｗ 包材

Claims (4)

    【特許請求の範囲】
  1. 【請求項１】 被包装物を投入することなく包材を封止
    し、その際の平均的な封止部の厚みに比例したデータを
    標準データとして記憶する工程と、 被包装物を投入しつつ行う通常の包材封止時の封止部の
    厚みに比例したデータを検出して、該データを上記標準
    データと比較して判定する工程と、 からなる包材の封止部に介在する介在物の有無の判定方
    法。
  2. 【請求項２】 上記封止部の厚みに比例したデータを、
    封止部材の接合に伴う負荷トルクの発生までの封止部材
    駆動手段の回転角から検出するようにしたことを特徴と
    する請求項１記載の包材の封止部に介在する介在物の有
    無の判定方法。
  3. 【請求項３】 上記封止部の厚みに比例したデータを、
    封止部材の接合の際の該封止部材の移動変位量から検出
    するようにしたことを特徴とする請求項１記載の包材の
    封止部に介在する介在物の有無の判定方法。
  4. 【請求項４】 上記封止部の厚みに比例したデータを、
    封止部材の接合の際の負荷から検出するようにしたこと
    を特徴とする請求項１記載の包材の封止部に介在する介
    在物の有無の判定方法。
JP35168493A 1993-12-28 1993-12-28 包材の封止部に介在する介在物の有無の判定方法 Expired - Fee Related JP3473861B2 (ja)

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JP35168493A JP3473861B2 (ja) 1993-12-28 1993-12-28 包材の封止部に介在する介在物の有無の判定方法
US08/345,180 US5551206A (en) 1993-12-28 1994-11-28 Detection of objects where package-making film sheets are sealed
EP19940309303 EP0661212B1 (en) 1993-12-28 1994-12-13 Packaging machine and method of operation
DE69418297T DE69418297T2 (de) 1993-12-28 1994-12-13 Verpackungsmaschine und deren Arbeitsweise

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JP35168493A JP3473861B2 (ja) 1993-12-28 1993-12-28 包材の封止部に介在する介在物の有無の判定方法

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US6945008B2 (en) * 1999-04-07 2005-09-20 Ishida Co., Ltd. Packaging system with improved flow of articles
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JP2003002309A (ja) * 2001-06-20 2003-01-08 Nihon Tetra Pak Kk 貼着状態判定装置
JP2006193176A (ja) * 2005-01-13 2006-07-27 Ishida Co Ltd 製袋包装機
JP2009126532A (ja) * 2007-11-21 2009-06-11 Kawashima Packaging Mach Ltd 自動包装機
JP2009234643A (ja) * 2008-03-27 2009-10-15 Fuji Seal International Inc シール装置
JP2015506881A (ja) * 2012-01-17 2015-03-05 クィパック・ビーヴィビーエイＱｉｐａｃｋ Ｂｖｂａ ホイルを有するパッケージのシーリング中に欠陥を検出する装置と方法
US9976842B2 (en) 2012-01-17 2018-05-22 Qipack Bvba Device and method for detecting defects during sealing of a package comprising a foil
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JP2015058976A (ja) * 2013-09-20 2015-03-30 株式会社イシダ 包装機
JP2023007238A (ja) * 2021-07-01 2023-01-18 株式会社イシダ 製袋包装機

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US5551206A (en) 1996-09-03
DE69418297T2 (de) 1999-11-04
JP3473861B2 (ja) 2003-12-08
DE69418297D1 (de) 1999-06-10
EP0661212A1 (en) 1995-07-05
EP0661212B1 (en) 1999-05-06

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