JPH1120809A - Sealer - Google Patents

Sealer

Info

Publication number
JPH1120809A
JPH1120809A JP9178266A JP17826697A JPH1120809A JP H1120809 A JPH1120809 A JP H1120809A JP 9178266 A JP9178266 A JP 9178266A JP 17826697 A JP17826697 A JP 17826697A JP H1120809 A JPH1120809 A JP H1120809A
Authority
JP
Japan
Prior art keywords
jaws
pressure
pair
load
state
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
JP9178266A
Other languages
Japanese (ja)
Other versions
JP3032487B2 (en
Inventor
Keisho Maruyama
恵章 丸山
Makoto Masui
誠 増井
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.)
Fuji Impulse Co Ltd
Original Assignee
Fuji Impulse 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
Application filed by Fuji Impulse Co Ltd filed Critical Fuji Impulse Co Ltd
Priority to JP9178266A priority Critical patent/JP3032487B2/en
Publication of JPH1120809A publication Critical patent/JPH1120809A/en
Application granted granted Critical
Publication of JP3032487B2 publication Critical patent/JP3032487B2/en
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
    • B29C66/90—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
    • B29C66/967—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process involving special data inputs or special data outputs, e.g. for monitoring purposes
    • B29C66/9672—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process involving special data inputs or special data outputs, e.g. for monitoring purposes involving special data inputs, e.g. involving barcodes, RFID tags
    • 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
    • B29C65/22—Heated wire resistive ribbon, resistive band or resistive strip
    • B29C65/221—Heated wire resistive ribbon, resistive band or resistive strip characterised by the type of heated wire, resistive ribbon, band or strip
    • B29C65/224—Heated wire resistive ribbon, resistive band or resistive strip characterised by the type of heated wire, resistive ribbon, band or strip being a resistive ribbon, a resistive band or a resistive strip
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/004—Preventing sticking together, e.g. of some areas of the parts to be joined
    • B29C66/0042—Preventing sticking together, e.g. of some areas of the parts to be joined of the joining tool and the parts to be joined
    • B29C66/0044—Preventing sticking together, e.g. of some areas of the parts to be joined of the joining tool and the parts to be joined using a separating sheet, e.g. fixed on the joining tool
    • 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
    • B29C66/349—Cooling the welding zone on the welding spot
    • B29C66/3494—Cooling the welding zone on the welding spot while keeping the welding zone under pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—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
    • B29C66/43121—Closing the ends of tubular or hollow single articles, e.g. closing the ends of bags
    • 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
    • B29C66/812—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 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
    • B29C66/8122—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 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 composition of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • 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
    • B29C66/8145—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 constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81457—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 constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a block or layer of deformable material, e.g. sponge, foam, rubber
    • 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
    • B29C66/816—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 mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8167—Quick change joining tools or surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/818—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
    • B29C66/8181—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects
    • B29C66/81811—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects of the welding jaws
    • B29C66/81812—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects of the welding jaws the welding jaws being cooled from the outside, e.g. by blowing a gas or spraying a liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/818—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
    • B29C66/8187—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the electrical insulating constructional aspects
    • B29C66/81871—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the electrical insulating constructional aspects of the welding 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
    • 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
    • B29C66/8221—Scissor or lever mechanisms, i.e. involving a pivot point
    • 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
    • B29C66/8227—Transmission mechanisms using springs
    • 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
    • B29C66/8244—Actuating mechanisms magnetically driven
    • 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
    • B29C66/8324—Joining or pressing tools pivoting around 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
    • B29C66/841—Machines or tools adaptable for making articles of different dimensions or shapes or for making joints of different dimensions
    • B29C66/8416—Machines or tools adaptable for making articles of different dimensions or shapes or for making joints of different dimensions of different thickness
    • 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
    • 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
    • B29C66/861—Hand-held tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/912—Measuring 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
    • B29C66/9121—Measuring 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
    • B29C66/91211—Measuring 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
    • B29C66/91212—Measuring 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
    • 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
    • B29C66/912—Measuring 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
    • B29C66/9121—Measuring 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
    • B29C66/91221—Measuring 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 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
    • B29C66/90—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
    • B29C66/96—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process
    • B29C66/967—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process involving special data inputs or special data outputs, e.g. for monitoring purposes
    • B29C66/9674—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process involving special data inputs or special data outputs, e.g. for monitoring purposes involving special data outputs, e.g. special data display means
    • 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
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • 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
    • B29C66/72—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 structure of the material of the parts to be joined
    • B29C66/723—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 structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—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 structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72327—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 structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of natural products or their composites, not provided for in B29C66/72321 - B29C66/72324
    • B29C66/72328—Paper

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Auxiliary Apparatuses For Manual Packaging Operations (AREA)
  • Package Closures (AREA)

Abstract

PROBLEM TO BE SOLVED: To enable transition to recovery action without time delay when external force for preventing a pair of jaws from approaching each other functions by providing a means which can measure a load applied to the jaws during a transition process from a first state when they are distant from each other to a second state when they are close. SOLUTION: A pressure plate 36 as a load measuring means is attached to an upper face on a free end of a pressure bonding lever 30, and strain gages 50 are stuck to two upper and lower faces. The strain gages 50 are used to measure a change in electric resistance due to deformation of the pressure plate 36 for detecting a load applied to a movable jaw 32. The pressure plate 36 is provided between a swing shaft core X of the pressure bonding lever 30 and the movable jaw 32 so that the load applied to the movable jaw 32 can be detected irrespective of a relative position to a fixed jaw 8. Further a reference value for stopping posture change of the lever 30 with an abnormal event determined is set in advance, wherein the abnormal event is determined by comparing it with the load measured by the pressure plate 36 and the strain gages 50.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、シール装置に関
し、より具体的には、一対のジョーを備え、この一対の
ジョーは、互いに離間して間にシール対象材料を配置可
能な第１状態から、互いに近接してシール対象材料を挟
着する第２状態との間で相対位置変更可能であり、さら
に、一対のジョーどうしを押し付けるための加圧機構
と、この加圧機構によって一対のジョーの間に挟着され
たシール対象材料を加熱するための加熱手段とを備えた
シール装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sealing device, and more particularly, to a sealing device having a pair of jaws. The relative position can be changed between a second state in which the sealing target material is sandwiched close to each other, and a pressing mechanism for pressing the pair of jaws together, and a pressing mechanism for pressing the pair of jaws by the pressing mechanism. The present invention relates to a sealing device provided with a heating means for heating a material to be sealed sandwiched therebetween.

【０００２】[0002]

【従来の技術】上記シール装置の従来例として、一対の
ジョーがシール対象材料を挟み込む以前の段階で、加圧
ジョーどうしの近接を阻害する何らかの外力が働いた場
合に、近接操作を一旦停止するための緊急停止手段を備
えたものが知られている。このシール装置は、一対の加
圧ジョーの内の可動側のジョーの姿勢を、両者の間にシ
ール対象材料を配置するために大きく開いた第１状態か
ら、固定側のジョーに近接した第２状態へ変更する姿勢
変更機構と、前記第２状態が達成されたことを検出する
姿勢検出手段（具体的にはマイクロスイッチ等で構成す
る）を備えており、姿勢変更手段によって姿勢変更が開
始されてから設定時間内に前記第２状態が達成されなか
った時には、姿勢変更を停止して、可動側の加圧ジョー
を第１姿勢に戻す復帰機構が設けられている。2. Description of the Related Art As a conventional example of the above-mentioned sealing device, when some external force which hinders the approach between pressurizing jaws acts before a pair of jaws sandwiches the material to be sealed, the approaching operation is temporarily stopped. Equipped with an emergency stop means for a vehicle. This sealing device changes the posture of the movable jaw of the pair of pressurizing jaws from the first state, which is greatly opened to dispose the material to be sealed between them, to the second jaw, which is close to the fixed jaw. A posture changing mechanism for changing to a state, and a posture detecting means (specifically, constituted by a microswitch or the like) for detecting that the second state has been achieved, and the posture change is started by the posture changing means. When the second state is not achieved within a set time after that, a return mechanism is provided for stopping the posture change and returning the movable-side pressurizing jaw to the first posture.

【０００３】さらに、一般に、上記シール装置によって
複数層のシール対象材料どうしを確実にシールするに
は、複数層のシール対象材料どうしを一定の基準値を超
える圧力で押し付けた状態で加熱する必要があり、その
基準値を超える圧力を保障するための圧力保障機構の例
が、同様に実開昭６２−４５８７７号公報に記載されて
いる。この従来技術によるシール装置は、図５に示され
るように、固定ジョー２０ａを有するベース部材２０
と、ベース部材２０上に揺動可能に設けられた圧着レバ
ー２１と、圧着レバー２１をベース部材２０側に押し付
けることによって、固定ジョー２０ａと、圧着レバー２
１の遊端に形成された可動ジョー２１ａとでシール対象
材料に圧力を加えるための加圧機構２４を備えており、
可動ジョー２１ａの下面には加熱用ヒータが貼り付けら
れている。加圧機構２４は、圧着レバー２１から下方に
延びるロッド２２と、ロッド２２を介して圧着レバー２
１を下方に引き下げるためにベース部材２０に設置され
たソレノイド２８を有する。ここで、ロッド２２の上端
に設けられたフランジ部材２２ａは比較的剛性の高いゴ
ム製スペーサ２３を介して圧着レバー２１と接当する構
成になっている。また、圧着レバー２１が所定位置まで
下がった時に加熱ヒータを駆動するためのマイクロスイ
ッチ２５と、このスイッチ２５を操作する操作片２６
が、ベース部材２０と圧着レバー２１の間に設置されて
いる。すなわち、ロッド２２が、先ず、ゴム製スペーサ
２３を所定量だけ圧縮変形しなければ、スイッチ２５が
入らないので、スイッチ２５用の操作片２６の位置と、
ゴム製スペーサ２３の厚さなどを適宜調節すれば、圧着
レバー２１がゴム製スペーサ２３を所定量だけ縮めた時
に初めて加熱ヒータが駆動開始されるという状態とな
る。したがって、この場合、ゴム製スペーサ２３の変形
に対する抵抗が、シール対象材料に加えられた圧力を保
障していることになる。Further, in general, in order to reliably seal a plurality of layers of the material to be sealed with the sealing device, it is necessary to heat the plurality of layers of the material to be sealed while pressing the materials with a pressure exceeding a predetermined reference value. An example of a pressure guarantee mechanism for guaranteeing a pressure exceeding the reference value is also described in Japanese Utility Model Laid-Open No. 45877/1987. As shown in FIG. 5, this prior art sealing device includes a base member 20 having a fixed jaw 20a.
And a pressing lever 21 slidably provided on the base member 20, and pressing the pressing lever 21 against the base member 20 side, thereby fixing the jaw 20 a and the pressing lever 2.
A movable jaw 21a formed at one free end of the movable member 21 and a pressure mechanism 24 for applying pressure to the material to be sealed;
A heater for heating is attached to the lower surface of the movable jaw 21a. The pressing mechanism 24 includes a rod 22 extending downward from the pressing lever 21 and the pressing lever 2 via the rod 22.
It has a solenoid 28 mounted on the base member 20 to pull 1 down. Here, the flange member 22a provided at the upper end of the rod 22 is configured to be in contact with the pressure bonding lever 21 via a relatively rigid rubber spacer 23. Also, a micro switch 25 for driving the heater when the pressure bonding lever 21 is lowered to a predetermined position, and an operation piece 26 for operating the switch 25
Are provided between the base member 20 and the pressure lever 21. That is, unless the rod 22 first compresses and deforms the rubber spacer 23 by a predetermined amount, the switch 25 is not turned on, so that the position of the operation piece 26 for the switch 25
If the thickness and the like of the rubber spacer 23 are appropriately adjusted, the heater is only started to be driven when the pressure lever 21 contracts the rubber spacer 23 by a predetermined amount. Therefore, in this case, the resistance to the deformation of the rubber spacer 23 guarantees the pressure applied to the material to be sealed.

【０００４】また、もう一つの従来技術を開示している
特公平７−２５３７４号公報に記されたシール装置は、
固定ジョーと可動ジョーの間に挟着されたシール対象材
料に加えられる圧着力を検知する手段を備えている。こ
こでは、可動ジョーを有する揺動可能な圧着レバー上
の、可動ジョーよりも揺動軸芯から離間した位置に取り
付けられた操作ロッドがシール装置のベース部材側に固
定された歪みゲージを、可動ジョーと固定ジョーが材料
を挟着するのと同時に、押し付ける構成となっている。Further, a sealing device described in Japanese Patent Publication No. 7-25374, which discloses another prior art,
Means are provided for detecting a pressing force applied to the material to be sealed sandwiched between the fixed jaw and the movable jaw. Here, on a swingable pressure lever having a movable jaw, an operation rod attached to a position more distant from the pivot axis than the movable jaw moves a strain gauge fixed to the base member side of the sealing device. The jaws and the fixed jaws press the material at the same time as sandwiching the material.

【０００５】[0005]

【発明が解決しようとする課題】上に例示した復帰機構
では、マイクロスイッチ等で構成された位置検出手段の
みに頼っているために以下のような不都合が生じる場合
がある。すなわち、ソレノイドが高温になった場合に、
可動ジョーを第１姿勢から第２姿勢に姿勢変更するのに
必要な標準時間を基準に前記設定時間を決める必要があ
るために（ソレノイドが高温になると姿勢変更に要する
時間が長くなる傾向があるので、常温時を基準に設定時
間を決めてあれば、ソレノイドが高温になると、異常が
なくても、設定時間を超えたという判断に基づいてホー
ムポジションに復帰してしまうという誤動作が生じ
る）、ソレノイドが常温の時に、何らかの外部的な作用
等で加圧ジョーどうしの近接を阻害する外力が働いて
も、幾らかの遅れ時間の後にしか復帰動作に移らないと
いう不都合があった。In the return mechanism exemplified above, the following inconveniences may occur because the return mechanism relies only on the position detecting means constituted by a microswitch or the like. That is, if the solenoid gets hot,
It is necessary to determine the set time based on a standard time required to change the position of the movable jaw from the first position to the second position. (When the temperature of the solenoid becomes high, the time required for changing the position tends to increase. Therefore, if the set time is determined based on the normal temperature, if the solenoid becomes high temperature, even if there is no abnormality, it will return to the home position based on the determination that the set time has been exceeded, even if there is no abnormality.) When the solenoid is at room temperature, even if an external force that hinders the proximity of the pressurizing jaws acts due to some external action or the like, there is a disadvantage that the operation returns to the returning operation only after a certain delay time.

【０００６】また、実開昭６２−４５８７７号公報に示
される圧力保障機構では、作業の途中でシール対象材料
の種類が厚さの大きなものに切り替えられると、そのま
までは加圧量が過剰になり易いので、この厚さに応じ
て、マイクロスイッチを早めに押すようにロッドの突出
量を調節し直す作業が煩雑であるという欠点が見られ
た。また、シール操作を連続して行う場合、ゴム製スペ
ーサの特性として、これを所定厚さまで圧縮するのに必
要な圧力は、シール操作の度に異なる傾向があるので、
シール対象材料に加えられた圧力は精密には保障されて
いない場合があるという短所があった。さらに、ゴム製
スペーサの特性として、これを所定厚さまで圧縮するの
に必要な圧力は経年変化する（言い換えれば、ゴム製ス
ペーサのヤング率が変化する）ので、材料に対する圧着
力を正確に制御するためにはスペーサを比較的早期に取
り替える必要がある点も改善の余地があった。In the pressure guarantee mechanism disclosed in Japanese Utility Model Application Laid-Open No. 62-45877, if the type of the material to be sealed is switched to a material having a large thickness during the operation, the pressurized amount becomes excessive as it is. Since it is easy to do so, there is a disadvantage that the operation of adjusting the protrusion amount of the rod so as to press the microswitch earlier according to the thickness is complicated. When the sealing operation is performed continuously, as a characteristic of the rubber spacer, the pressure required to compress the rubber spacer to a predetermined thickness tends to be different each time the sealing operation is performed.
There is a disadvantage that the pressure applied to the material to be sealed may not be guaranteed precisely. Further, as a characteristic of the rubber spacer, the pressure required to compress the rubber spacer to a predetermined thickness changes over time (in other words, the Young's modulus of the rubber spacer changes), so that the pressure force applied to the material is accurately controlled. For this reason, there is room for improvement in that it is necessary to replace the spacer relatively early.

【０００７】次に、特公平７−２５３７４号公報に記さ
れたシール装置では、圧着力検知手段が機能するために
は、操作ロッドの突出量を、可動ジョーと固定ジョーが
材料を挟着するのと同時に操作ロッドが歪みゲージを押
し付けるように調整する構成となっているので、可動ジ
ョーが固定ジョーから離間している時には、一対の加圧
ジョーどうしの近接を阻害する外力を検出することはで
きない。また、同様の事情でシール対象材料の厚さが切
り替わる場合には、シーラー噛み合い強さ調整用ボルト
を調整し直す必要がある。さらに、シール時の材料圧着
強さは、シール圧調整用ボルトによって調整可能である
が、圧着強さを希望する値に直接的に設定することは出
来ず、希望する圧着強さが実現されたかどうかを、シー
ル後に判定できるのみであるという問題があった。Next, in the sealing device described in Japanese Patent Publication No. 7-25374, in order for the pressing force detecting means to function, the amount of protrusion of the operating rod is determined by the movable jaw and the fixed jaw sandwiching the material. At the same time, the operation rod is adjusted so as to press the strain gauge, so when the movable jaw is separated from the fixed jaw, it is not possible to detect the external force that hinders the proximity of the pair of pressure jaws. Can not. Further, when the thickness of the material to be sealed is changed under the same circumstances, it is necessary to readjust the sealer engagement strength adjusting bolt. Furthermore, although the material crimping strength at the time of sealing can be adjusted with a sealing pressure adjusting bolt, the crimping strength cannot be directly set to a desired value, and the desired crimping strength has been achieved. However, there is a problem that it can only be determined after sealing.

【０００８】本発明の目的は、以上に記した従来技術が
有する上記の問題に鑑みて、一対のジョーが材料を挟み
込む以前の段階で、何らかの外部的な作用等で一対のジ
ョーどうしの近接を阻害する外力が働いた時に、遅れ時
間なしに復帰動作に移ることの出来るシール装置を提供
することにある。また、本発明の他の目的は、圧着力設
定用の部品を頻繁に取り替えることなく荷重を正確に測
定可能なシール装置を提供することにある。さらに、本
発明の別の目的は、一対のジョーに加えられる荷重を、
ジョーどうしの距離と無関係に検出することができ、し
たがって、シール対象材料の厚さの切り替わりの度に調
整作業を行うことが不要で、圧着強さを直接的に指定す
ることができるシール装置を提供することにある。SUMMARY OF THE INVENTION In view of the above-mentioned problems of the prior art described above, an object of the present invention is to set the pair of jaws close to each other by some external action before the pair of jaws sandwiches the material. It is an object of the present invention to provide a sealing device capable of performing a return operation without a delay time when an obstructive external force is applied. It is another object of the present invention to provide a seal device capable of accurately measuring a load without frequently replacing components for setting a crimping force. Further, another object of the present invention is to reduce the load applied to the pair of jaws.
A sealing device that can detect regardless of the distance between the jaws, so that it is not necessary to perform adjustment work every time the thickness of the material to be sealed is changed and that the crimping strength can be directly specified. To provide.

【０００９】[0009]

【課題を解決するための手段】上記目的を達成するため
に、本発明に係るシール装置では、一対のジョーに加え
られる荷重を、前記第１状態から前記第２状態への移行
過程で測定可能な手段を有することを特徴構成としてい
る。In order to achieve the above object, in the sealing device according to the present invention, the load applied to the pair of jaws can be measured during the transition from the first state to the second state. Characteristic means.

【００１０】[0010]

【発明の効果】上記特徴構成を有するために、本発明に
係るシール装置では、一対のジョーがシール対象材料を
シールするために互いに近接している状態だけでなく、
例えば、一対のジョー間にシール対象材料を配置するた
めに十分に離間している状態でも、また、シール対象材
料の厚さと無関係に、一対のジョーに加えられる荷重を
測定可能で、且つ、圧着強さを試行錯誤に頼らずに直接
的に指定可能な構成にできるという効果が得られる。ま
た、何らかの外部的な作用等で一対のジョーどうしの近
接を阻害する外力が働いた時に、殆ど遅れ時間なしに復
帰動作に移ることが出来るように、一対のジョーどうし
に働いている荷重を常に監視する構成にするのが容易で
ある。According to the sealing device of the present invention, the pair of jaws are not only in a state of being close to each other for sealing the material to be sealed, but also in the sealing device according to the present invention.
For example, even when the material to be sealed is sufficiently spaced between the pair of jaws, and regardless of the thickness of the material to be sealed, the load applied to the pair of jaws can be measured, and the crimping can be performed. The effect is obtained that the strength can be directly specified without resorting to trial and error. In addition, when an external force that hinders the proximity of the pair of jaws acts due to some external action or the like, the load acting on the pair of jaws is always adjusted so that the return operation can be performed with almost no delay time. It is easy to configure to monitor.

【００１１】荷重測定手段を設ける方法としては、請求
項２の発明のように、加圧機構が荷重測定手段を介して
一対のジョーどうしを押し付ける構成とすれば良い。As a method of providing the load measuring means, the pressure mechanism may press the pair of jaws via the load measuring means, as in the second aspect of the present invention.

【００１２】さらに具体的な構成としては、請求項３の
発明のように、ベース部材と、このベース部材に対して
揺動可能に設けられた圧着レバーを設け、一対のジョー
を、ベース部材に設けられた固定ジョーと、圧着レバー
に設けられた可動ジョーとで構成し、加圧機構は、圧着
レバーをベース部材向きに押し付ける構成とすれば良
い。As a more specific configuration, a base member and a pressure lever provided to be swingable with respect to the base member are provided, and a pair of jaws are attached to the base member. The pressing mechanism may include a fixed jaw provided and a movable jaw provided on the pressing lever, and the pressing mechanism may press the pressing lever toward the base member.

【００１３】請求項４の発明のように、荷重測定手段と
して、圧着レバーに圧力板を設け、加圧機構はこの圧力
板を介して圧着レバーをベース部材向きに引き寄せる構
成とすれば良い。このように構成すれば、圧力板として
は比較的小型の寸法精度が高い鋼などを用い、小さな寸
法にすることの困難な圧着レバー自身の材質には、例え
ば鋳物など低価格の材料を使うという材料の合理的な使
い分けが可能となる。すなわち、圧力板を圧着レバーに
取り付けられた別部材として設けた場合、圧力板を厚み
などの精度の高い鋼で形成すれば、加えられた荷重に基
づく変形量が安定し（ゴム等を用いた場合のように使用
による永久形状の変化が少ない）、高い信頼性で荷重を
測定することができる。また、請求項５の発明のよう
に、この圧力板に歪みゲージを貼り付けて荷重を測定す
るように構成した時、取り付けた歪みゲージの出力とこ
れに対応する荷重の間の較正作業を、小型の圧力板に対
してのみ手軽に行うことができる。因みに、例えば、圧
力板を用いずに、圧着レバー自身に歪みゲージを貼り付
けることも可能であるが、この場合、圧着レバーが鋳物
であれば、内部に潜在的に存在する引け巣などのため
に、荷重に基づく変形量が個々に大きく異なったり、一
個の中でも不安定になり易い傾向がある。また、シール
の際に必要な圧力は低く（一般に荷重で１００ｋｇ重前
後）、このレベルの荷重でも歪みゲージに確実な出力を
させるためには、圧着レバーの一部を薄くすることで変
形量を大きくする必要があり、この場合、鋳物が材質で
は耐久的な信頼性に問題が生じる。また、圧着レバー自
身に貼り付けられる構成では、実質的に、圧着レバーを
ベース部材に組み付け、シール装置として略完成した状
態で、歪みゲージの較正を行うこととなり、較正作業に
手間がかかり易い。さらに、圧着レバーが鋳物の場合、
鋼などに比してヤング率が高いので、一定の荷重による
変形量が小さく、歪みゲージによる荷重モニターの精度
が比較的低くなり易い。また、加圧機構が圧力板を介し
て圧着レバーをベース部材向きに引き寄せる構成とすれ
ば、圧力板の材質は比較的自由に選択できるので、これ
を熱の影響を受けにくい金属製にしておけば、十分に高
い温度レベルで熱融着でき、確実なシール状態が得ら
れ、また、加熱用ヒータから熱の影響を受け難いので正
しい値が出力される。因みに、荷重測定手段として、樹
脂製等の薄膜状センサをジョーどうしの接当面自身に貼
り付けると、薄膜状センサは熱による損傷を受け易いた
めに、損傷を与える心配のない温度レベルでしか熱融着
できず、確実なシール状態が得られない。また、薄膜状
センサが加熱用ヒータからの熱の影響を受けて正しい値
を出力しない問題が生じる。As in the fourth aspect of the invention, a pressure plate may be provided on the pressure lever as a load measuring means, and the pressure mechanism may be configured to draw the pressure lever toward the base member via the pressure plate. With this configuration, the pressure plate is made of relatively small steel with high dimensional accuracy and the material of the pressure lever itself, which is difficult to make small, is made of a low-cost material such as a casting. Reasonable use of materials is possible. That is, when the pressure plate is provided as a separate member attached to the pressure bonding lever, if the pressure plate is formed of high-precision steel such as a thickness, the amount of deformation based on the applied load is stabilized (using rubber or the like). As in the case, there is little change in the permanent shape due to use), and the load can be measured with high reliability. Further, as in the invention of claim 5, when a configuration is adopted in which a strain gauge is attached to this pressure plate to measure the load, the calibration work between the output of the attached strain gauge and the load corresponding thereto is performed. It can be easily performed only for a small pressure plate. By the way, for example, without using a pressure plate, it is also possible to attach a strain gauge to the pressure bonding lever itself, but in this case, if the pressure bonding lever is a cast, due to a shrinkage cavity that potentially exists inside, etc. In addition, the amount of deformation based on the load tends to be largely different from each other, or even one of them tends to be unstable. In addition, the pressure required for sealing is low (generally, a load of about 100 kg weight), and even with this level of load, in order for the strain gauge to output reliably, the deformation amount is reduced by thinning a part of the pressure lever. In this case, if the casting is made of a material, there is a problem in durability reliability. Further, in the configuration in which the pressure lever is attached to the pressure lever itself, the strain gauge is calibrated substantially in a state where the pressure lever is assembled to the base member and the seal device is substantially completed, so that the calibration work is easily troublesome. Furthermore, when the crimp lever is cast,
Since the Young's modulus is higher than that of steel or the like, the amount of deformation due to a constant load is small, and the accuracy of a load monitor using a strain gauge tends to be relatively low. Also, if the pressure mechanism is configured to pull the pressure lever toward the base member via the pressure plate, the material of the pressure plate can be selected relatively freely, so that the pressure plate can be made of a metal that is not easily affected by heat. In this case, heat sealing can be performed at a sufficiently high temperature level, a reliable sealing state can be obtained, and a correct value is output because the heater for heating is hardly affected by heat. By the way, if a thin film sensor made of resin or the like is attached to the contact surfaces of the jaws as a load measuring means, the thin film sensor is easily damaged by heat. Fusion cannot be performed, and a reliable sealing state cannot be obtained. Further, there is a problem that the thin film sensor does not output a correct value due to the influence of heat from the heater for heating.

【００１４】請求項６の発明のように、加圧機構は、一
対のジョーどうしの姿勢を、第１状態から第２状態へ変
更する姿勢変更手段を兼ねており、第１から第２状態へ
の移行過程で荷重測定手段が第１荷重設定値を超える値
を検出した時に、姿勢変更を停止する緊急停止機構が設
けられている構成とすることができる。このように構成
すると、第１から第２状態への移行過程で、一対のジョ
ーどうしの近接を阻止する荷重が所定量を超えたとき、
これを異常事態とみなして即刻に姿勢変更を停止するこ
とができて、都合が良い。According to a sixth aspect of the present invention, the pressing mechanism doubles as a posture changing means for changing the posture of the pair of jaws from the first state to the second state, and from the first state to the second state. When the load measuring means detects a value exceeding the first load set value in the transition process, an emergency stop mechanism for stopping the posture change may be provided. With this configuration, when the load for preventing the pair of jaws from approaching each other exceeds a predetermined amount during the transition from the first state to the second state,
This can be regarded as an abnormal situation and the posture change can be stopped immediately, which is convenient.

【００１５】請求項７の発明のように、荷重測定手段が
第２荷重設定値を超える値を検出した時に、加熱手段を
駆動する挟着力判定手段を設けることができる。このよ
うに構成すると、両ジョーの温度が不必要に上昇するこ
とを防いで、材料の融着完了後、圧着レバーが上向きに
揺動して、シールされた材料を開放するタイミングを早
める効果が得られる（後述するように、信頼性の高いシ
ールを獲得し、また、美麗な材料融着面を得るために
は、融着が完了しても固定ジョーと可動ジョーの材料接
触面近傍が一定温度以下まで冷えるまでは、両ジョーが
材料と接触した状態を維持する必要があるが、新たなシ
ール対象材料を両ジョーが規定の圧力で押し付ける以前
から加熱手段の駆動を開始すると、結果的に、少なくと
も加熱手段の設けられた側のジョーに余分な熱が蓄積
し、融着完了後のジョーの冷却のための所用時間が長く
なってしまう。）。また、加熱融着のために不可欠な短
い期間だけ加熱手段を駆動することになるので、消費電
力量の削減に寄与する効果も得られる。According to the present invention, when the load measuring means detects a value exceeding the second load set value, it is possible to provide a clamping force determining means for driving the heating means. With this configuration, it is possible to prevent the temperature of both jaws from unnecessarily increasing, and to effect an effect that the timing of releasing the sealed material is accelerated by the pressing lever swinging upward after the fusion of the material is completed. (As described later, in order to obtain a highly reliable seal and obtain a beautiful material fusion surface, it is necessary to maintain a fixed contact area between the fixed jaw and the movable jaw even after fusion is completed. It is necessary to keep both jaws in contact with the material until the temperature drops below the temperature.However, if the heating means is started before both jaws press the new material to be sealed at the specified pressure, the result is that Extra heat accumulates at least in the jaws on the side where the heating means is provided, which increases the time required for cooling the jaws after the completion of the fusion.) In addition, since the heating means is driven only for a short period indispensable for heat fusion, an effect of reducing power consumption can be obtained.

【００１６】また、請求項８の発明のように、一対のジ
ョーどうしの第２状態への切り替わりに応じて働く姿勢
判定スイッチを設けて、姿勢変更手段が姿勢変更を開始
してからこのスイッチが操作されるまでに要する時間が
設定時間を超えた時に、姿勢変更操作を中断する構成に
すれば、請求項６の発明の緊急停止機構が万が一働かな
くても、時間によって停止されるので都合が良い。Further, as in the invention of claim 8, an attitude determination switch is provided which operates in accordance with the switching of the pair of jaws to the second state, and after the attitude changing means starts the attitude change, this switch is turned on. If the posture changing operation is interrupted when the time required for the operation exceeds the set time, the emergency stop mechanism according to the invention of claim 6 is stopped by the time even if the emergency stop mechanism does not work. good.

【００１７】姿勢変更手段および加圧機構のより具体的
な構造としては、請求項９の発明のように、加圧機構
に、圧力板を介して圧着レバーをベース部材向きに引き
寄せるための圧力伝達部材が含まれる構成とすれば良
い。As a more specific structure of the posture changing means and the pressing mechanism, a pressure transmission for pulling the pressure lever toward the base member via the pressure plate to the pressing mechanism is provided as in the ninth aspect of the present invention. What is necessary is just to set it as the structure containing a member.

【００１８】また、請求項１０の発明のように、圧着レ
バーは、圧力板を支持する支持部と、圧力板の変形を許
すために支持部に隣接して形成された凹部を有する構成
とすれば良い。このように構成すれば、可動ジョーに加
えられる荷重と圧力板の変形量とが、圧着レバーなどの
部材の影響を受けず、リニアな関係になり易いため、荷
重を正確に測定することができる、また、凹部を設ける
ことによって、圧力板の上表面と下表面の双方に歪みゲ
ージを取り付けることができ、より正確な測定を実現す
ることが可能となる。According to a tenth aspect of the present invention, the pressure bonding lever has a configuration in which a support portion for supporting the pressure plate and a concave portion formed adjacent to the support portion to allow deformation of the pressure plate. Good. According to this structure, the load applied to the movable jaw and the deformation amount of the pressure plate are not influenced by members such as the pressure lever and tend to be in a linear relationship, so that the load can be accurately measured. Further, by providing the concave portions, strain gauges can be attached to both the upper surface and the lower surface of the pressure plate, and more accurate measurement can be realized.

【００１９】さらに、請求項１１の発明のように、一対
のジョーの少なくとも一方に、前記材料の温度を測定す
る温度検出手段を設け、加熱手段の駆動停止後、温度検
出手段が設定温度を下回る値を検出した後で、一対のジ
ョーを第１状態に復帰させる冷却判定手段が設けられた
構成とすれば、より確実な信頼性の高いシール状態と、
美麗なシール面を獲得することができる。[0019] Further, as in the eleventh aspect of the present invention, at least one of the pair of jaws is provided with a temperature detecting means for measuring the temperature of the material. If the cooling determination means for returning the pair of jaws to the first state after detecting the value is provided, a more reliable and highly reliable sealing state can be obtained.
A beautiful seal surface can be obtained.

【００２０】請求項１２の発明のように、（加熱手段を
駆動開始する基準としての）第２荷重設定値を変更する
手段を設けた構成とすれば、シール対象材料の特性（厚
さ、加熱時の軟化度など）に応じてシール時に加える圧
力を適正値に調節できるので、信頼性の高いシールを獲
得することができる。According to a twelfth aspect of the present invention, when the means for changing the second load set value (as a reference for starting the driving of the heating means) is provided, the characteristics (thickness, heating Pressure at the time of sealing can be adjusted to an appropriate value according to the degree of softening at the time, and a highly reliable seal can be obtained.

【００２１】本発明によるその他の特徴及び利点は、以
下図面を用いた実施例の説明により明らかになるだろ
う。Other features and advantages according to the present invention will become apparent from the following description of embodiments with reference to the drawings.

【００２２】[0022]

【発明の実施の形態】本発明によるシール装置の一実施
形態について図面に基づいて解説する。 （シール装置の構造）図２のシール装置は、シール装置
本体１、シールデータを処理するためのパソコン３、処
理されたシールデータを印刷物として出力するためのプ
リンタ５から構成されている。シール装置本体１にはデ
ータ転送手段が設けられている。また、シール装置本体
１は、固定ジョー８を備えたベース部材６と、ベース部
材６に対して上下方向に揺動可能に設けられた左右一対
の圧着レバー３０，３０を有する。圧着レバー３０，３
０の基端側は二方に分岐しており、ベース部材６に立設
された一対の支持部１０，１０上に支持されたピン部材
によって、軸芯Ｘ周りで揺動可能に支持されている。圧
着レバー３０，３０の遊端側からは左右に長く延びた可
動ジョー３２が下方に突出形成されている。可動ジョー
３２の下端にはゴム製のパッド３２ａが固定されてお
り、圧着レバー３０，３０の前記揺動に基づいて、可動
ジョー３２は固定ジョー８に近接移動して、これによっ
てパッド３２ａは固定ジョー８と接触可能となる（図２
を参照）。圧着レバー３０の遊端側の上面には荷重測定
手段としての圧力板３６が取り付けられている。圧力板
３６は厚さ約５ｍｍの鋼製の板からなる。圧力板３６
は、被支持部３６ａとそこから後方に延びた可撓部３６
ｂを有し、被支持部３６ａは、可動ジョー３２の上方に
設けられた支持部３０ａにボルト３８，３８を介して固
定されている。可動ジョー３２の、可撓部３６ｂの下方
に相当する位置には、可撓部３６ｂの下方向きの変形を
許す凹部４０が形成されている。言い換えれば、圧力板
３６はその前端に設けられた被支持部３６ａによって片
持ち状態に固定されていることになる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a sealing device according to the present invention will be described with reference to the drawings. (Structure of Sealing Device) The sealing device shown in FIG. 2 includes a sealing device main body 1, a personal computer 3 for processing the seal data, and a printer 5 for outputting the processed seal data as a printed matter. The seal device main body 1 is provided with data transfer means. Further, the sealing device main body 1 includes a base member 6 having a fixed jaw 8 and a pair of left and right pressure bonding levers 30, 30 provided so as to be vertically swingable with respect to the base member 6. Crimping lever 30,3
The base end side of O is bifurcated, and is pivotally supported around the axis X by pin members supported on a pair of support portions 10, 10 erected on the base member 6. I have. A movable jaw 32 extending long from side to side from the free end side of the pressure bonding levers 30, 30 is formed to protrude downward. A rubber pad 32a is fixed to the lower end of the movable jaw 32, and the movable jaw 32 moves close to the fixed jaw 8 based on the swing of the pressure levers 30, 30, whereby the pad 32a is fixed. It becomes possible to make contact with the jaw 8 (FIG. 2)
See). A pressure plate 36 as a load measuring means is attached to the upper surface on the free end side of the pressure lever 30. The pressure plate 36 is a steel plate having a thickness of about 5 mm. Pressure plate 36
Is a supported portion 36a and a flexible portion 36 extending rearward therefrom.
and the supported portion 36a is fixed to the support portion 30a provided above the movable jaw 32 via bolts 38,38. At a position corresponding to a position below the flexible portion 36b of the movable jaw 32, a concave portion 40 that allows the flexible portion 36b to be deformed downward is formed. In other words, the pressure plate 36 is fixed in a cantilevered state by the supported portion 36a provided at the front end thereof.

【００２３】圧着レバー３０，３０のベース部材６に対
する姿勢を変更する姿勢変更機構１４が設けられてい
る。姿勢変更機構１４は、ベース部材６に固定されたソ
レノイド１２と、ソレノイド１２に対して変位すること
によって、ソレノイド１２の筒内への進入寸法を変更可
能な可動鉄芯４６と、圧力板３６の可撓部３６ｂの貫通
孔３６ｃに嵌着された引下げヘッド４２と、この引下げ
ヘッド４２を可動鉄芯４６と連結するリンク部材４４
と、圧着レバー３０，３０をベース部材６から離間した
姿勢に向けて付勢している復帰ばね３４を有する。ソレ
ノイド１２に適当な大きさの電流を流すと、発生する磁
力によって可動鉄芯４６がソレノイド１２側に吸引され
て、リンク部材４４と圧力板３６を介して圧着レバー３
０，３０が、復帰ばね３４の付勢力に抗して下方に押し
下げられる（ここで、引下げヘッド４２とリンク部材４
４とは、圧力板３６を介して圧着レバー３０，３０をベ
ース部材６向きに引き寄せるための圧力伝達部材の一
例）。したがって、ソレノイド１２へ流す電流を調整す
ることによって、固定ジョー８と可動ジョー３２の間に
シール対象材料Ｍを配置するための、圧着レバー３０，
３０が十分に開いた第１姿勢（図１−イ）と、可動ジョ
ー３２が固定ジョー８に近接して間にシール対象材料を
挟着する第２姿勢（図１−ロ）の間で、圧着レバー３０
の姿勢が変更可能となる。また、姿勢変更機構１４は、
可動ジョー３２を固定ジョー８に押し付けるための加圧
機構１６を兼ねている。すなわち、同様に、ソレノイド
１２へ流す電流を更に高めれば、可動ジョー３２は固定
ジョー８に押し付けられ、両ジョー８，３２の間にシー
ル対象材料Ｍを挟着することができる。また、シール装
置本体１には、姿勢変更機構１４を開始するためのフッ
トスイッチ１００が設けられている。An attitude changing mechanism 14 for changing the attitude of the pressure levers 30, 30 with respect to the base member 6 is provided. The attitude changing mechanism 14 includes a solenoid 12 fixed to the base member 6, a movable iron core 46 capable of changing a dimension of the solenoid 12 entering the cylinder by displacing the solenoid 12, and a pressure plate 36. A pull-down head 42 fitted in the through hole 36c of the flexible portion 36b, and a link member 44 connecting the pull-down head 42 to the movable iron core 46
And a return spring 34 that urges the pressure levers 30, 30 toward a position separated from the base member 6. When a current of an appropriate magnitude is applied to the solenoid 12, the movable iron core 46 is attracted to the solenoid 12 side by the generated magnetic force, and the pressure lever 3 is connected via the link member 44 and the pressure plate 36.
0, 30 are pushed downward against the urging force of the return spring 34 (here, the pull-down head 42 and the link member 4
4 is an example of a pressure transmitting member for pulling the pressure levers 30, 30 toward the base member 6 via the pressure plate 36). Therefore, by adjusting the current flowing through the solenoid 12, the crimp levers 30 and 30 for disposing the material M to be sealed between the fixed jaw 8 and the movable jaw 32 are arranged.
Between a first position (FIG. 1A) in which the 30 is fully opened and a second position (FIG. 1B) in which the movable jaw 32 is in close proximity to the fixed jaw 8 and clamps the material to be sealed. Crimping lever 30
Can be changed. In addition, the posture changing mechanism 14
The pressing mechanism 16 also presses the movable jaw 32 against the fixed jaw 8. That is, similarly, if the current flowing through the solenoid 12 is further increased, the movable jaw 32 is pressed against the fixed jaw 8, and the sealing target material M can be sandwiched between the jaws 8, 32. Further, the seal device main body 1 is provided with a foot switch 100 for starting the posture changing mechanism 14.

【００２４】固定ジョー８の上向きの端面には、ニクロ
ムテープ６２，６２（加熱手段の一例）が貼り付けられ
ている。ニクロムテープ６２，６２は、幅が約４ｍｍで
二本あり、間に２ｍｍの間隔を開けた平行状態に配置さ
れている。ニクロムテープ６２，６２をこのような配置
にしてシールを行えば、幅が約４ｍｍの帯状のシール箇
所が二本形成される。このような幅が約４ｍｍの帯状シ
ールは、幅が約１０ｍｍの一本のニクロムテープを用い
た場合に得られるシールに比して剥がし易く、しかも、
この幅が約４ｍｍの帯状のシール箇所が間を置いて２カ
所形成されるので、シールの信頼性は低下しない。この
ようなシール方法は、特に、樹脂製のシートと紙シート
を熱可塑性樹脂の接着シートでシールさせる場合に、紙
シートから紙粉が出難いという効果を発揮する。ニクロ
ムテープ６２，６２を駆動する（通電する）と、固定ジ
ョー８と可動ジョー３２の間に挟着されたシール対象材
料Ｍを加熱することができる。尚、金属製で導電性の固
定ジョー８とニクロムテープ６２，６２の間には、非導
電性材料、例えば、テフロン（米国デュポン社製の商品
名）の薄いシートが介装されており、ニクロムテープ６
２，６２に流される電流の短絡を防止している。また、
実際のシール作業では、ニクロムテープ６２，６２がシ
ール対象材料Ｍに接触しないように、ニクロムテープ６
２，６２上にもテフロン（米国デュポン社製の商品名）
等の薄い耐熱シートＳを載置してシール作業を行う。Nichrome tapes 62, 62 (an example of a heating means) are attached to the upward end surface of the fixed jaw 8. The nichrome tapes 62 have two widths of about 4 mm and are arranged in parallel with a gap of 2 mm therebetween. If the nichrome tapes 62, 62 are arranged in such a manner and sealed, two band-shaped seal portions having a width of about 4 mm are formed. Such a band-shaped seal having a width of about 4 mm is easier to peel than a seal obtained when a single nichrome tape having a width of about 10 mm is used.
Since two strip-shaped seal portions having a width of about 4 mm are formed at intervals, the reliability of the seal does not decrease. Such a sealing method has an effect that paper powder hardly comes out of the paper sheet particularly when the resin sheet and the paper sheet are sealed with a thermoplastic resin adhesive sheet. When the nichrome tapes 62 are driven (energized), the material M to be sealed sandwiched between the fixed jaw 8 and the movable jaw 32 can be heated. A thin sheet of a non-conductive material, for example, Teflon (trade name, manufactured by DuPont, USA) is interposed between the metal fixed conductive jaw 8 and the Nichrome tapes 62, 62. Tape 6
The short circuit of the current flowing through the circuits 2 and 62 is prevented. Also,
In the actual sealing operation, the nichrome tape 62 is used to prevent the nichrome tape 62 from contacting the material M to be sealed.
Teflon on 2,62 (Dupont, USA)
The sealing work is performed by placing a thin heat-resistant sheet S such as.

【００２５】ベース部材６には一対の冷却ファン８０，
８０が設けられており、固定ジョー８を強制冷却するこ
とができる。圧力板３６の上下の二面には、各々歪みゲ
ージ５０，５０（荷重測定手段の一例）が貼り付けられ
ている。可動ジョー３２に荷重が加えられると、この荷
重は荷重測定手段としての圧力板３６の変形を引き起こ
し、この圧力板３６の変形によって歪みゲージ５０，５
０に引っ張り力、或いは、圧縮力が加えられ、これによ
って引き起こされる電気抵抗変化をブリッジ回路構成に
よる増幅回路で電圧信号に変換し、これをＡ／Ｄ変換す
ることで、可動ジョー３２に加えられている荷重Ｐ１の
大きさを検出することが出来る。ここで、荷重測定手段
としての圧力板３６は、圧着レバー３２の、揺動軸芯Ｘ
と可動ジョー３２の間に設けられているので、可動ジョ
ー３２に加えられる荷重Ｐ１は、可動ジョー３２の固定
ジョー８に対する相対位置に拘わらず検出することがで
きる（すなわち、第２状態は元より、第１状態から第２
状態への移行過程の任意の時点で検出可能）。The base member 6 has a pair of cooling fans 80,
The fixed jaw 8 can be forcibly cooled. Strain gauges 50, 50 (an example of load measuring means) are attached to the upper and lower surfaces of the pressure plate 36, respectively. When a load is applied to the movable jaw 32, the load causes a deformation of the pressure plate 36 as a load measuring means, and the deformation of the pressure plate 36 causes the strain gauges 50, 5 to move.
A tensile force or a compressive force is applied to zero, and a change in electric resistance caused by the force is converted into a voltage signal by an amplifier circuit having a bridge circuit configuration, and the voltage signal is subjected to A / D conversion. The magnitude of the applied load P1 can be detected. Here, the pressure plate 36 as a load measuring means is provided on the pivot axis X of the pressure-contact lever 32.
Is provided between the movable jaw 32 and the movable jaw 32, the load P1 applied to the movable jaw 32 can be detected regardless of the relative position of the movable jaw 32 with respect to the fixed jaw 8 (that is, the second state is originally from the second state). , From the first state to the second
Can be detected at any time during the transition process to the state).

【００２６】また、圧着レバー３０，３０とベース部材
６の間にはマイクロスイッチ６０が設けられている。図
２に示されるように、マイクロスイッチ６０は、圧着レ
バー３０，３０が下降して、可動ジョー３２と固定ジョ
ー８がシール対象材料を挟着可能になるとＯＮされ、加
熱工程を開始する信号を出す。可動ジョー３２のゴムパ
ッド３２ａには熱電対６４（温度検出手段の一例）が設
けられている。A micro switch 60 is provided between the pressure levers 30, 30 and the base member 6. As shown in FIG. 2, the micro switch 60 is turned on when the crimp levers 30 and 30 are lowered and the movable jaw 32 and the fixed jaw 8 can clamp the material to be sealed, and a signal for starting the heating process is provided. put out. The rubber pad 32a of the movable jaw 32 is provided with a thermocouple 64 (an example of a temperature detecting unit).

【００２７】（制御機構）本発明によるシール装置の制
御機構は、図３に示されるように、シール装置本体１の
カバー上に設けられた操作盤２００と、ベース部材６上
に設けられた中央制御部３００を有する。中央制御部３
００は、荷重判定手段、緊急停止手段、冷却判定手段、
および、タイマーを有する。一方、中央制御部３００
は、操作盤２００、フットスイッチ１００、プリンタ
５、ソレノイド１０、歪みゲージ５０、マイクロスイッ
チ６０、および、熱電対６４と連結されている。中央制
御部３００は、フットスイッチ１００の押し操作に基づ
いて、圧着レバー３０，３０を下降させ、さらに、可動
ジョー３２と固定ジョー８の間でシール対象材料を挟着
するために、ソレノイド１２に通電開始し、さらに、通
電する電流を次第に高めるという基本操作を実行すると
共に、その間、下記の操作をも実効可能である。(Control Mechanism) As shown in FIG. 3, the control mechanism of the sealing device according to the present invention includes an operation panel 200 provided on the cover of the sealing device main body 1 and a central device provided on the base member 6. It has a control unit 300. Central control unit 3
00 is load determining means, emergency stopping means, cooling determining means,
And a timer. On the other hand, the central control unit 300
Is connected to an operation panel 200, a foot switch 100, a printer 5, a solenoid 10, a strain gauge 50, a micro switch 60, and a thermocouple 64. The central control unit 300 lowers the pressure bonding levers 30, 30 based on the pressing operation of the foot switch 100, and further causes the solenoid 12 to clamp the material to be sealed between the movable jaw 32 and the fixed jaw 8. The basic operation of starting energization and gradually increasing the current to be energized is executed, and during that time, the following operation can also be performed.

【００２８】すなわち、前記荷重判定手段は、荷重測定
手段３６，５０によって測定された、可動ジョー３２に
加えられている荷重の値Ｐ１を第１荷重設定値または第
２荷重設定値と比較する。ここで、第１荷重設定値は、
一対のジョーどうしの近接を阻止する荷重が所定量を超
えたとき、これを異常事態とみなして即刻に圧着レバー
３０，３０の姿勢変更を停止するための基準値であるか
ら、姿勢変更機構１４が圧着レバー３０，３０を復帰ば
ね３４に抗してベース部材６側に変位させるのに必要十
分な操作力を若干超える値に設定しておけば良く、例え
ば５ｋｇ重に設定しておく。一方、第２荷重設定値につ
いては、シール対象材料Ｍを融着するのに適した基準圧
力であるから、材料に応じて適宜変更すれば良いが、こ
こでは仮に、一般的な例に相当する１００ｋｇ重と設定
しておく。前記緊急停止手段は、圧着レバー３０，３０
が第１から第２状態への移行過程の途中、すなわち、未
だ十分に下降して、可動ジョー３２と固定ジョー８がシ
ール対象材料Ｍを挟着可能になっていない状態、言い換
えれば、マイクロスイッチ６０がＯＦＦの状態で、歪み
ゲージ５０，５０が前記第１荷重設定値を超える値Ｐ１
を検出した時に、これを異常事態とみなして、即刻に姿
勢変更を停止する。この時、圧着レバー３０，３０は、
復帰ばね３４によって第１状態に戻る。That is, the load determining means compares the value P1 of the load applied to the movable jaw 32 measured by the load measuring means 36, 50 with the first load set value or the second load set value. Here, the first load set value is
When the load for preventing the pair of jaws from approaching each other exceeds a predetermined amount, this is regarded as an abnormal situation and is a reference value for immediately stopping the posture change of the pressure bonding levers 30, 30. May be set to a value that slightly exceeds the operation force necessary and sufficient to displace the pressure bonding levers 30, 30 toward the base member 6 against the return spring 34, for example, set to 5 kg weight. On the other hand, since the second load set value is a reference pressure suitable for fusing the material M to be sealed, it may be appropriately changed according to the material, but here, it corresponds to a general example. Set to 100kg weight. The emergency stop means includes a crimp lever 30, 30.
Is in the middle of the transition process from the first state to the second state, that is, in a state where the movable jaw 32 and the fixed jaw 8 have not yet been able to clamp the material M to be sealed, in other words, a microswitch. When the strain gauges 50 and 50 are in the OFF state, the value P1 exceeds the first load set value.
Is detected, this is regarded as an abnormal situation, and the posture change is immediately stopped. At this time, the pressure levers 30,
The return spring 34 returns to the first state.

【００２９】前記冷却判定手段は、ニクロムテープ６
２，６２に対する通電停止後、熱電対６４が設定温度Ｔ
０（例：９０℃）を下回る値Ｔ１を検出した時に、ソレ
ノイド１２を解放して、圧着レバー３０，３０を第１状
態に復帰させる。前記タイマーは、ソレノイド駆動機構
が圧着レバー３０，３０を下降開始した時からの経過時
間を測定し、基準下降時間（例えば、２秒など）と比較
する機能を備える。The cooling determining means includes a nichrome tape 6
2 and 62, the thermocouple 64 changes to the set temperature T.
When a value T1 lower than 0 (eg, 90 ° C.) is detected, the solenoid 12 is released, and the pressure bonding levers 30, 30 are returned to the first state. The timer has a function of measuring an elapsed time from when the solenoid driving mechanism starts lowering the pressure bonding levers 30 and 30 and comparing the measured time with a reference lowering time (for example, 2 seconds).

【００３０】（制御方法）本発明によるシール装置の制
御方法を、図４のフロー図に基づいて解説する。 （１）作業者がシール対象材料Ｍを可動ジョー３２と固
定ジョー８の間に配置して、フットスイッチ１００を踏
む（＃０１）と、ソレノイド１２に電流が流れて、可動
鉄芯４６が磁力で下方に引っ張られ、圧着レバー３０，
３０の下降が開始される（＃０２）。この時、同時にタ
イマーが時間経過を測定開始する（＃０３）。 （２）圧着レバー３０，３０が十分に下降する前に、第
１荷重設定値（５ｋｇ重）を超える荷重Ｐ１が検出され
たことを荷重判定手段が判定するか（＃０４がｙｅ
ｓ）、または、タイマーがタイムアップすると（＃０５
がｙｅｓ）、ソレノイド１２が解放され（＃０７）、圧
着レバー３０，３０は、圧縮ばね３４の付勢力で前記第
１姿勢に復帰する。 （３）タイマーがタイムアップしない間に（＃０５がｎ
ｏ）、第１荷重設定値（５ｋｇ重）を超える荷重Ｐ１が
検出されなければ（＃０４がｎｏ）、ソレノイド１２に
流れる電流が増大し続け、遂に圧着レバー３０，３０が
十分に下降して、マイクロスイッチ６０がＯＮされる
（＃０６がｙｅｓ）。 （４）マイクロスイッチ６０のＯＮに基づいて発生され
る信号で、ニクロムテープ６２，６２が駆動されて材料
Ｍが加熱され、一定時間経過後、加熱終了する（＃０
８）。 （５）熱電対６４による材料の測定温度Ｔ１が設定温度
Ｔ０まで下がった時（＃０９がｙｅｓ）、ソレノイド１
２を解放し（＃１０）、シールが完了する。 （６）加熱温度のピーク値、可動ジョー３２が材料から
離れた時の材料温度Ｔ１、および、加熱開始した時の荷
重測定値Ｐ１を、それぞれ、「加熱温度」「冷却温度」
「シール圧力」として、シール装置本体１に設けられた
ＲＳ−２３２Ｃに基づくインタフェースを用いて、パソ
コン３に転送し、パソコン３によってデータ処理後、こ
れらの測定値を、シールされた製品の包装材料Ｍの表面
と、プリンタ５から排出される記録紙と、操作盤２００
の表示部に出力する（＃１１）。(Control Method) The control method of the sealing device according to the present invention will be described with reference to the flowchart of FIG. (1) When the worker places the material to be sealed M between the movable jaw 32 and the fixed jaw 8 and depresses the foot switch 100 (# 01), an electric current flows through the solenoid 12 and the movable iron core 46 becomes a magnetic force. , And is pulled downward by the crimp lever 30,
30 is started to fall (# 02). At this time, the timer simultaneously starts measuring the elapsed time (# 03). (2) Whether the load determining means determines that the load P1 exceeding the first load set value (5 kg weight) is detected before the pressure-contact levers 30, 30 are sufficiently lowered (# 04: yes)
s) or when the timer times out (# 05)
Yes), the solenoid 12 is released (# 07), and the pressure levers 30, 30 return to the first position by the urging force of the compression spring 34. (3) While the timer does not time out (# 05 is n
o), unless a load P1 exceeding the first load set value (5 kg weight) is detected (# 04 is no), the current flowing through the solenoid 12 continues to increase, and finally the pressure bonding levers 30, 30 are sufficiently lowered. , The micro switch 60 is turned on (# 06 is yes). (4) The signal generated based on the ON of the microswitch 60 drives the nichrome tapes 62, 62 to heat the material M, and after a certain period of time, ends the heating (# 0).
8). (5) When the temperature T1 of the material measured by the thermocouple 64 drops to the set temperature T0 (# 09 is yes), the solenoid 1
2 is released (# 10), and the sealing is completed. (6) The peak value of the heating temperature, the material temperature T1 when the movable jaw 32 is separated from the material, and the measured load value P1 when the heating is started are respectively referred to as “heating temperature” and “cooling temperature”.
The “seal pressure” is transferred to the personal computer 3 using the interface based on RS-232C provided in the seal device main body 1, and after the data is processed by the personal computer 3, these measured values are used as the packaging material for the sealed product. M, the recording paper discharged from the printer 5, and the operation panel 200
(# 11).

【００３１】尚、両ジョー８，３２の間に挟着された複
数層のシール対象材料Ｍどうしを加熱融着する基準荷重
としての、第２荷重設定値は、必要に応じて（例えば、
シール対象材料の軟化特性や厚さなどに応じて）操作盤
２００から変更可能である。The second load set value as a reference load for heating and fusing a plurality of layers of the material to be sealed M sandwiched between the jaws 8 and 32 as needed (for example,
It can be changed from the operation panel 200 (depending on the softening characteristics and thickness of the material to be sealed).

【００３２】〔別実施形態〕 ＜１＞加熱開始のタイミングは、マイクロスイッチ６０
のＯＮによらずに、可動ジョー３２に加えられた荷重が
第２荷重設定値を超えたとの荷重判定手段による判定に
応じて開始しても良い。この場合、マイクロスイッチ６
０は荷重判定手段による前記判定よりも早めにＯＮされ
ても良い。[Another Embodiment] <1> The heating start timing is determined by the microswitch 60.
May be started in response to the determination made by the load determining means that the load applied to the movable jaw 32 has exceeded the second load set value, without depending on ON. In this case, the microswitch 6
0 may be turned on earlier than the above-mentioned judgment by the load judgment means.

【００３３】＜２＞設定された第２荷重設定値がキーロ
ックされる構成としても良い。すなわち、一旦設定され
た第２荷重設定値が不注意で変更されないように、設定
変更にはＩＤ番号の入力が必要な構成にすることができ
る。<2> The set second load set value may be key-locked. That is, it is possible to adopt a configuration in which an ID number must be input to change the setting so that the second load set value once set is not inadvertently changed.

【００３４】＜３＞上記実施形態のシール装置本体で
は、一対のジョーの内の一方はベース部材に固定された
固定ジョーであるが、一対のジョーの双方を可動ジョー
として構成することも可能である。<3> In the seal device body of the above embodiment, one of the pair of jaws is a fixed jaw fixed to the base member, but both of the pair of jaws may be configured as movable jaws. is there.

【００３５】＜４＞上記実施形態では、熱可塑性樹脂か
らなるシール対象材料どうしを、ニクロムヒータ等で瞬
間的に加熱しながら押し付けることで融着しているが、
ヒータの代わりに、超音波による融着機構を用いても良
い。<4> In the above embodiment, the materials to be sealed made of a thermoplastic resin are fused by pressing them instantaneously while heating them with a nichrome heater or the like.
Instead of the heater, a fusion mechanism using ultrasonic waves may be used.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明によるシール装置本体の第１と第２状態
における側面図FIG. 1 is a side view of a sealing device main body according to the present invention in first and second states.

【図２】本発明によるシール装置の全体を示す正面図FIG. 2 is a front view showing the entirety of the sealing device according to the present invention.

【図３】図１のシール装置本体の制御部を示すブロック
図FIG. 3 is a block diagram showing a control unit of the sealing device main body of FIG. 1;

【図４】図１のシール装置本体の制御方法を示すフロー
図FIG. 4 is a flowchart showing a control method of the sealing device main body of FIG. 1;

【図５】シール装置の従来例を示す側面図FIG. 5 is a side view showing a conventional example of a sealing device.

【符号の説明】[Explanation of symbols]

１ シール装置本体 ３ パソコン ５ プリンタ ６ ベース部材 ８ 固定ジョー １２ ソレノイド ３０ 圧着レバー ３２ 可動ジョー ３６ 圧力板 ４２ 引き下げヘッド ４６ 可動鉄芯 ５０ 歪みゲージ ６０ マイクロスイッチ １００ フットスイッチ ２００ 操作盤 ３００ 中央制御部 DESCRIPTION OF SYMBOLS 1 Seal device main body 3 Personal computer 5 Printer 6 Base member 8 Fixed jaw 12 Solenoid 30 Crimping lever 32 Movable jaw 36 Pressure plate 42 Pull-down head 46 Movable iron core 50 Strain gauge 60 Micro switch 100 Foot switch 200 Operation panel 300 Central control unit

Claims (12)

【特許請求の範囲】[Claims] 【請求項１】 一対のジョーを備え、この一対のジョー
は、互いに離間して間にシール対象材料を配置可能な第
１状態から、互いに近接して前記シール対象材料を挟着
する第２状態との間で相対位置変更可能であり、さら
に、前記一対のジョーどうしを押し付けるための加圧機
構と、この加圧機構によって前記一対のジョーの間に挟
着された前記シール対象材料を加熱するための加熱手段
とを備えたシール装置であって、 前記一対のジョーに加えられる荷重を、前記第１状態か
ら前記第２状態への移行過程で測定可能な手段を有する
シール装置。1. A pair of jaws, wherein the pair of jaws are spaced apart from each other and a second state in which the sealing target material is sandwiched between the first and second jaws. And a pressure mechanism for pressing the pair of jaws together, and the sealing mechanism heats the material to be sealed sandwiched between the pair of jaws. And a heating means for measuring a load applied to the pair of jaws in a transition process from the first state to the second state. 【請求項２】 前記加圧機構は、前記荷重測定手段を介
して前記一対のジョーどうしを押し付ける請求項１に記
載のシール装置。2. The seal device according to claim 1, wherein the pressing mechanism presses the pair of jaws through the load measuring unit. 【請求項３】 ベース部材と、このベース部材に対して
揺動可能に設けられた圧着レバーが設けられており、前
記一対のジョーは、前記ベース部材に設けられた固定ジ
ョーと、前記圧着レバーに設けられた可動ジョーからな
り、前記加圧機構は、前記圧着レバーを前記ベース部材
向きに押し付ける請求項１または２に記載のシール装
置。3. A base member and a pressure lever provided to be swingable with respect to the base member, wherein the pair of jaws are a fixed jaw provided on the base member and the pressure lever. 3. The seal device according to claim 1, wherein the pressure mechanism presses the pressure lever toward the base member. 4. 【請求項４】 前記荷重測定手段は、前記圧着レバーに
設けられた圧力板を含み、前記加圧機構は前記圧力板を
介して前記圧着レバーを前記ベース部材向きに引き寄せ
る請求項３に記載のシール装置。4. The apparatus according to claim 3, wherein the load measuring means includes a pressure plate provided on the pressure lever, and the pressing mechanism draws the pressure lever toward the base member via the pressure plate. Sealing device. 【請求項５】 前記荷重測定手段は、前記圧力板に取り
付けられた歪みゲージを含む請求項３または４に記載の
シール装置。5. The sealing device according to claim 3, wherein the load measuring means includes a strain gauge attached to the pressure plate. 【請求項６】 前記加圧機構は、前記一対のジョーどう
しの姿勢を、前記第１状態から前記第２状態へ変更する
姿勢変更手段を兼ねており、前記第１から第２状態への
移行過程で前記荷重測定手段が第１荷重設定値を超える
値を検出した時に、前記姿勢変更を停止する緊急停止機
構が設けられている請求項１から５のいずれか１項に記
載のシール装置。6. The pressurizing mechanism also serves as a posture changing means for changing the posture of the pair of jaws from the first state to the second state, and makes a transition from the first state to the second state. The seal device according to any one of claims 1 to 5, further comprising an emergency stop mechanism for stopping the posture change when the load measuring unit detects a value exceeding the first load set value in the process. 【請求項７】 前記荷重測定手段が第２荷重設定値を超
える値を検出した時に、前記加熱手段を駆動する挟着力
判定手段が設けられている請求項１から６のいずれか１
項に記載のシール装置。7. A holding force determining means for driving the heating means when the load measuring means detects a value exceeding a second load set value.
The sealing device according to the paragraph. 【請求項８】 前記一対のジョーどうしの前記第２状態
への切り替わりに応じて働く姿勢判定スイッチが取り付
けられている請求項１から７のいずれか１項に記載のシ
ール装置。8. The seal device according to claim 1, further comprising a posture determination switch that operates in accordance with switching of the pair of jaws to the second state. 【請求項９】 前記加圧機構は、前記圧力板を介して前
記圧着レバーを前記ベース部材向きに引き寄せるための
圧力伝達部材を含む請求項４から８のいずれか１項に記
載のシール装置。9. The seal device according to claim 4, wherein the pressure mechanism includes a pressure transmission member for pulling the pressure lever toward the base member via the pressure plate. 【請求項１０】 前記圧着レバーは、前記圧力板を支持
する支持部と、前記圧力板の変形を許すために前記支持
部に隣接して形成された凹部を有する請求項４から９の
いずれか１項に記載のシール装置。10. The pressure bonding lever according to claim 4, wherein the pressure lever has a support portion for supporting the pressure plate and a concave portion formed adjacent to the support portion to allow deformation of the pressure plate. Item 2. The sealing device according to item 1. 【請求項１１】 前記一対のジョーの少なくとも一方に
前記材料の温度を測定する温度検出手段が設けられてお
り、前記加熱手段の駆動停止後、前記温度検出手段が設
定温度を下回る値を検出した時に、前記一対のジョーを
前記第１状態に復帰させる冷却判定手段が設けられてい
る請求項１から１０のいずれか１項に記載のシール装
置。11. A temperature detecting means for measuring a temperature of the material is provided on at least one of the pair of jaws, and after the driving of the heating means is stopped, the temperature detecting means detects a value lower than a set temperature. The sealing device according to any one of claims 1 to 10, further comprising cooling determination means for returning the pair of jaws to the first state at the time. 【請求項１２】 前記第２荷重設定値を変更する手段が
設けられている請求項１から１１のいずれか１項に記載
のシール装置。12. The sealing device according to claim 1, further comprising means for changing the second load set value.
JP9178266A 1997-07-03 1997-07-03 Sealing device Expired - Fee Related JP3032487B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9178266A JP3032487B2 (en) 1997-07-03 1997-07-03 Sealing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9178266A JP3032487B2 (en) 1997-07-03 1997-07-03 Sealing device

Publications (2)

Publication Number Publication Date
JPH1120809A true JPH1120809A (en) 1999-01-26
JP3032487B2 JP3032487B2 (en) 2000-04-17

Family

ID=16045488

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9178266A Expired - Fee Related JP3032487B2 (en) 1997-07-03 1997-07-03 Sealing device

Country Status (1)

Country Link
JP (1) JP3032487B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100799926B1 (en) 2006-12-11 2008-01-31 (주) 가성팩 Sealer
KR20140020350A (en) * 2011-07-20 2014-02-18 후지인파루스 가부시키가이샤 Sealing device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3168032B1 (en) * 2015-11-13 2019-02-27 Fraunhofer Gesellschaft zur Förderung der Angewand Joining device and joining method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100799926B1 (en) 2006-12-11 2008-01-31 (주) 가성팩 Sealer
KR20140020350A (en) * 2011-07-20 2014-02-18 후지인파루스 가부시키가이샤 Sealing device

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