JP2002193217A - Heat sealing apparatus and heat sealing method using the same - Google Patents

Heat sealing apparatus and heat sealing method using the same

Info

Publication number
JP2002193217A
JP2002193217A JP2000397545A JP2000397545A JP2002193217A JP 2002193217 A JP2002193217 A JP 2002193217A JP 2000397545 A JP2000397545 A JP 2000397545A JP 2000397545 A JP2000397545 A JP 2000397545A JP 2002193217 A JP2002193217 A JP 2002193217A
Authority
JP
Japan
Prior art keywords
temperature
heat
sealing
film
preheating
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.)
Pending
Application number
JP2000397545A
Other languages
Japanese (ja)
Other versions
JP2002193217A5 (en
Inventor
Yasuhito Miyazawa
泰人 宮澤
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.)
Nippon Seiki Co Ltd
Original Assignee
Nippon Seiki 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 Nippon Seiki Co Ltd filed Critical Nippon Seiki Co Ltd
Priority to JP2000397545A priority Critical patent/JP2002193217A/en
Publication of JP2002193217A publication Critical patent/JP2002193217A/en
Publication of JP2002193217A5 publication Critical patent/JP2002193217A5/ja
Pending 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
    • B29C66/83511—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws jaws mounted on rollers, cylinders or drums
    • B29C66/83513—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws jaws mounted on rollers, cylinders or drums cooperating jaws mounted on rollers, cylinders or drums and moving in a closed path
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/024—Thermal pre-treatments
    • B29C66/0242—Heating, or preheating, e.g. drying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/345—Progressively making the joint, e.g. starting from the middle
    • B29C66/3452—Making complete joints by combining partial joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—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
    • B29C66/40—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
    • B29C66/70—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
    • 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
    • B29C66/83411—Roller, cylinder or drum types
    • B29C66/83413—Roller, cylinder or drum types cooperating rollers, cylinders or drums
    • 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
    • B29C66/87—Auxiliary operations or devices
    • B29C66/874—Safety measures or devices
    • B29C66/8744—Preventing overheating of the parts to be joined, e.g. if the machine stops or slows down
    • B29C66/87441—Preventing overheating of the parts to be joined, e.g. if the machine stops or slows down by lowering or shutting down the power supply
    • 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
    • B29C66/91231—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 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91421—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the joining 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
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91441—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature the temperature being non-constant over time
    • B29C66/91443—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature the temperature being non-constant over time following a temperature-time profile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9161—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux
    • B29C66/91641—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux the heat or the thermal flux being non-constant over time
    • B29C66/91643—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux the heat or the thermal flux being non-constant over time following a heat-time profile
    • B29C66/91645—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux the heat or the thermal flux being non-constant over time following a heat-time profile by steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • B29C66/9192—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams
    • B29C66/91951—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to time, e.g. temperature-time diagrams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/96—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process
    • B29C66/961—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process involving a feedback loop mechanism, e.g. comparison with a desired value
    • 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
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/009—Shaping techniques involving a cutting or machining operation after shaping
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/36—Bending and joining, e.g. for making hollow articles
    • B29C53/38—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges
    • B29C53/48—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of indefinite length, i.e. bending a strip progressively
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Package Closures (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a heat sealing apparatus which has good productivity and prevents generation of poor sealing performance, and a heat sealing method using the same. SOLUTION: The heat seal apparatus applies heat seal to a film 2, and the heat seal method using the same comprises the steps of setting either an appropriate temperature for heat sealing of a sealing body 5B, 6B heated with an electric heater K4 or a preheating temperature higher than the appropriate temperature, as a set temperature, and adjusting a temperature of sealing bodies 5B, 6B to be the preheating temperature in a standby state wherein the film 2 is not heat sealed, and adjusting a temperature of the sealing bodies 5B, 6B to be the appropriate temperature in a normal state wherein the film 2 is heat sealed.

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、フィルムにヒート
シールを施すヒートシール装置及びヒートシール方法に
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat-sealing apparatus and a heat-sealing method for heat-sealing a film.

【０００２】[0002]

【従来の技術】液体，粉体あるいは粘稠物質などの被充
填物を充填包装する充填包装機として、例えば特開平１
−１５３４１０号公報や特開平２−４６２６号公報ある
いは特開平２−３２９２９号公報などに開示されている
ものがある。この充填包装機は、連続移送されるフィル
ムを折返し、そのフィルムの折返両端縁を重ねて縦シー
ル機構により縦シールし、この縦シールしたフィルム内
に被充填物を充填し、このフィルムを横シール機構によ
り横シールして小袋を製袋した後、カッター機構により
横シール部分の中央部を切断して単包の小袋として分離
して搬出したり、あるいは横シール機構により横シール
して小袋を製袋した後に、その繋がった連包状態の小袋
を連続して搬出させて収納箱内に梱包して包装するもの
である。2. Description of the Related Art As a filling and packaging machine for filling and packaging materials to be filled, such as liquids, powders, and viscous substances, see, for example,
Some of them are disclosed in Japanese Patent Application Laid-Open No. 153410, Japanese Patent Application Laid-Open No. 2-4626, Japanese Patent Application Laid-Open No. 2-32929 and the like. This filling and packaging machine folds the film which is continuously transferred, overlaps the folded edges of the film, vertically seals it with a vertical sealing mechanism, fills the vertically sealed film with an object to be filled, and horizontally seals this film. After making a small bag by horizontal sealing by the mechanism, cut the center part of the horizontal seal part by the cutter mechanism and separate and carry out as a single bag, or make the small bag by horizontal sealing by the horizontal sealing mechanism. After bagging, the connected small bags are continuously carried out, packed in a storage box, and packed.

【０００３】[0003]

【発明が解決しようとする課題】このような充填包装機
のヒートシール装置となる前記縦，横シール機構には、
電気ヒータを備えたシール体が備えられており、品種毎
の包装形態に応じて前記シール体が適正温度（例えば、
１８０℃）を維持するように温度調整手段が設けられて
いる。The vertical and horizontal sealing mechanisms which constitute the heat sealing device of such a filling and packaging machine include:
A seal body provided with an electric heater is provided, and the seal body has an appropriate temperature (for example,
(180 ° C.) is provided.

【０００４】しかしながら、このような温度調整手段が
設けられている場合であっても、縦，横シール機構が待
機状態から運転状態へ移行する際（運転開始する際）、
シール体がフィルムやフィルムを介した被充填物の接触
によって急激に冷やされてしまうため、図５に示すよう
に、一時的にシール体の温度が適正温度よりも低い状態
となってしまう。従って、この状態にてヒートシールさ
れた包装袋は、充分なフィルムの溶着がなされず、シー
ル不良箇所から被充填物が漏れ、包装機としての生産性
を低下させてしまうといった問題点を有していた。However, even when such a temperature adjusting means is provided, when the vertical and horizontal sealing mechanisms shift from the standby state to the operating state (when the operation is started),
Since the sealing body is rapidly cooled by the contact of the film or the filling material via the film, the temperature of the sealing body temporarily becomes lower than the appropriate temperature as shown in FIG. Therefore, the packaging bag heat-sealed in this state has a problem that the film is not welded sufficiently, the filling material leaks from the defective sealing portion, and the productivity of the packaging machine is reduced. I was

【０００５】本発明は、上述した問題点に鑑みてなされ
たもので、シール不良を防止した生産性の良いヒートシ
ール装置及びヒートシール方法を提供することを目的と
するものである。The present invention has been made in view of the above-mentioned problems, and has as its object to provide a heat-sealing apparatus and a heat-sealing method which prevent a defective seal and have high productivity.

【０００６】[0006]

【課題を解決するための手段】本発明のヒートシール装
置は、請求項１に記載したように、フィルムにヒートシ
ールを施すヒートシール装置であって、加熱手段によっ
て加熱されるシール体を備え、前記シール体におけるヒ
ートシールのための適正温度、または前記適正温度より
も高い予備加熱温度を設定可能とする温度調整手段を備
え、前記フィルムをヒートシールしない待機状態の際に
前記予備加熱温度になるように前記温度調整手段を調整
し、前記フィルムをヒートシールする通常状態の際に前
記適正温度になるように前記温度調整手段を切換える切
換手段を備えてなることを特徴とするものである。The heat sealing apparatus according to the present invention is a heat sealing apparatus for performing heat sealing on a film, comprising a sealing body heated by a heating means, as described in claim 1. Providing a proper temperature for heat sealing in the sealing body, or a temperature adjusting means capable of setting a preheating temperature higher than the appropriate temperature, the temperature becomes the preheating temperature in a standby state in which the film is not heat sealed. Switching means for adjusting the temperature adjusting means as described above and switching the temperature adjusting means so as to reach the appropriate temperature in a normal state in which the film is heat-sealed is provided.

【０００７】また、請求項２に記載したように、請求項
１に記載したヒートシール装置において、前記切換手段
は、前記シール体を有するヒートシール機構の運転状態
を検出する運転状態検出手段からの検出信号に基づい
て、前記適正温度と前記予備加熱温度とを切換えてなる
ことを特徴とするものである。According to a second aspect of the present invention, in the heat sealing apparatus according to the first aspect, the switching means includes an operating state detecting means for detecting an operating state of the heat sealing mechanism having the seal body. The method is characterized in that the appropriate temperature and the preheating temperature are switched based on a detection signal.

【０００８】また、請求項３に記載したように、請求項
１または請求項２に記載したヒートシール装置におい
て、前記シール体の温度を検出する温度検出手段を備
え、前記温度調整手段は、前記温度検出手段によって検
出される温度データに応じて、前記シール体の温度が前
記予備加熱温度、または前記適正温度のなるように調整
することを特徴とするものである。According to a third aspect of the present invention, there is provided the heat sealing apparatus according to the first or second aspect, further comprising a temperature detecting means for detecting a temperature of the seal body, wherein the temperature adjusting means comprises: It is characterized in that the temperature of the seal body is adjusted to the preheating temperature or the appropriate temperature in accordance with temperature data detected by the temperature detecting means.

【０００９】また、請求項４に記載したように、請求項
１から請求項３に何れかに記載したヒートシール装置に
おいて、前記切換手段は、品種毎の包装形態に応じた温
度特性に基づいて、予備加熱温度から適正温度までの温
度変化を徐々に変化させるように前記温度調整手段を調
整してなることを特徴とするものである。According to a fourth aspect of the present invention, in the heat sealing device according to any one of the first to third aspects, the switching unit is configured to perform a switching operation based on a temperature characteristic according to a packaging mode for each product type. The temperature adjusting means is adjusted so that a temperature change from a preheating temperature to an appropriate temperature is gradually changed.

【００１０】また、請求項５に記載したように、請求項
１から請求項４の何れかに記載したヒートシール装置に
おいて、前記適正温度、及び前記予備加熱温度を設定す
るための入力手段を備えてなることを特徴とするもので
ある。According to a fifth aspect of the present invention, in the heat sealing apparatus according to any one of the first to fourth aspects, an input means for setting the appropriate temperature and the preheating temperature is provided. It is characterized by becoming.

【００１１】また、請求項６に記載したように、請求項
５に記載したヒートシール装置において、前記入力手段
によって設定される前記適正温度及び前記予備加熱温度
を表示する表示手段を備えてなることを特徴とするもの
である。According to a sixth aspect of the present invention, there is provided the heat sealing apparatus according to the fifth aspect, further comprising display means for displaying the proper temperature and the preheating temperature set by the input means. It is characterized by the following.

【００１２】また、本発明のヒートシール方法は、請求
項７に記載したように、フィルムにヒートシールを施す
ヒートシール方法であって、加熱手段によって加熱され
るシール体におけるヒートシールのための適正温度、ま
たは前記適正温度よりも高い予備加熱温度を少なくとも
設定温度として定め、前記フィルムをヒートシールしな
い待機状態の際に、前記シール体の温度が予備加熱温度
になるように調整し、前記フィルムをヒートシールする
通常状態の際に、前記シール体の温度が前記適正温度に
なるように調整することを特徴とするものである。Further, the heat sealing method of the present invention is a heat sealing method for heat-sealing a film, which is suitable for heat sealing in a sealed body heated by a heating means. Temperature, or a preheating temperature higher than the appropriate temperature is determined as at least a set temperature, and in a standby state in which the film is not heat-sealed, the temperature of the sealing body is adjusted to be a preheating temperature, and the film is adjusted. In a normal state in which heat sealing is performed, the temperature of the seal body is adjusted to be the appropriate temperature.

【００１３】また、請求項８に記載したように、請求項
７に記載したヒートシール方法において、品種毎の包装
形態に応じた温度特性に基づいて、前記予備加熱温度と
前記適正温度との切換えを、前記シール体の温度が前記
予備加熱温度から前記適正温度に移行する際に、前記予
備加熱温度と前記適正温度との温度変化分において徐々
に変化させることを特徴とするものである。[0013] As described in claim 8, in the heat sealing method according to claim 7, switching between the preheating temperature and the appropriate temperature is performed based on a temperature characteristic according to a packaging form for each type. When the temperature of the seal body shifts from the preheating temperature to the appropriate temperature, the temperature is gradually changed by a temperature change between the preheating temperature and the appropriate temperature.

【００１４】[0014]

【発明の実施の形態】以下、本発明の実施の形態を添付
図面に基づき説明するが、本発明のヒートシール装置及
びヒートシール方法を充填包装機に適用した例を挙げて
説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. An example in which the heat sealing apparatus and the heat sealing method of the present invention are applied to a filling and packaging machine will be described.

【００１５】図１において、充填包装機の全体構造を説
明すると、充填包装機は、原反軸１が設けられ、この原
反軸１に包装用のフィルム２をロール上に巻回した原反
フィルム１Ａが着脱交換可能に設けられている。また、
充填包装機には、被充填物Ｗを密閉包装するために、フ
ィルム案内機構３及びフィルム折返し機構４を配設し、
縦シール機構５、横シール機構６、充填機構７、切断機
構８が備えられており、縦，横シール機構５，６は、ヒ
ートシール装置を構成するものである。Referring to FIG. 1, the overall structure of the filling and packaging machine will be described. The filling and packaging machine is provided with a material web shaft 1, and a film 2 for wrapping is wound around a roll on the material web shaft 1. A film 1A is provided so as to be detachable and replaceable. Also,
The filling and packaging machine is provided with a film guide mechanism 3 and a film folding mechanism 4 for hermetically packing the material to be filled W,
A vertical sealing mechanism 5, a horizontal sealing mechanism 6, a filling mechanism 7, and a cutting mechanism 8 are provided, and the vertical and horizontal sealing mechanisms 5, 6 constitute a heat sealing device.

【００１６】フィルム２は、後述するシール部対応箇所
が透明なナイロンと低密度ポリエチレンとの積層体から
なり、前記ロール状原反フイルム１Ａからフイルム２の
繰り出し機構となる縦シール機構５により引き出され、
フイルム案内機構３を介してフイルム折返し機構４に導
出され、フイルム折返し機構４に設けられた折返しガイ
ドによりフイルム２を長手方向に沿って二つ折りにされ
る。The film 2 is made of a laminate of nylon and low-density polyethylene having a portion corresponding to a seal portion, which will be described later, and is pulled out of the roll-shaped raw film 1A by a vertical seal mechanism 5 serving as a mechanism for feeding the film 2. ,
The film 2 is led out to the film folding mechanism 4 via the film guiding mechanism 3, and the film 2 is folded in two along the longitudinal direction by the folding guide provided in the film folding mechanism 4.

【００１７】縦シール機構５は、サーボモータからなる
駆動手段Ｍ１によって回転可能に設けられ、対向する一
対の縦ヒートシールロール５Ａの外周に沿ってに設けら
れた縦シール体（シール体）５Ｂによって、二つ折りに
されたフイルム２の各々折返し縁部と折返し端部同志
（左右両縁部）とを、繰り出しながら縦方向にヒートシ
ールして縦シール部２Ａを形成するものである。なお、
両縦ヒートシールロール５Ａ内部には、後述する電気ヒ
ータ（加熱手段）と熱電対からなる温度検出手段とを内
蔵している。The vertical seal mechanism 5 is rotatably provided by a driving means M1 comprising a servomotor, and is provided with a vertical seal body (seal body) 5B provided along the outer periphery of a pair of opposed vertical heat seal rolls 5A. The folded edge portion and the folded edge portions (both left and right edges) of the folded film 2 are heat-sealed in the vertical direction while being fed to form a vertical seal portion 2A. In addition,
Inside the vertical heat seal rolls 5A, an electric heater (heating means) described later and a temperature detecting means including a thermocouple are incorporated.

【００１８】横シール機構６は、サーボモータからなる
駆動手段Ｍ２によって回転可能に設けられ、対向する一
対の横ヒートシールロール６Ａに設けられた横シール体
（シール体）６Ｂによって、フイルム２を横方向にヒー
トシールして、包装袋Ｐとなる底部、即ち横シール部２
Ｂを形成するものである。なお、両横ヒートシールロー
ル６Ａ内部には、縦シール機構５と同様に電気ヒータと
温度検出手段とを内蔵している。The horizontal sealing mechanism 6 is rotatably provided by a driving means M2 comprising a servomotor, and the film 2 is horizontally mounted by a horizontal sealing body (seal body) 6B provided on a pair of horizontal heat sealing rolls 6A opposed to each other. Bottom, which becomes a packaging bag P by heat-sealing in the direction
B is formed. Note that an electric heater and a temperature detecting means are incorporated inside the two horizontal heat seal rolls 6A as in the vertical seal mechanism 5.

【００１９】充填機構７は、縦シール部２Ａ及び横シー
ル部２Ｂによって、連続する有底筒状に形成されたフィ
ルム２内に、例えば胡麻や肉片等の固形物を含む調味料
やスープからなる被充填物Ｗを充填するものである。ま
た、この被充填物Ｗを含むフィルム２袋口部は、更に送
られて再び横シール機構６によって横方向にヒートシー
ルされて封止状態となる。The filling mechanism 7 comprises a seasoning or soup containing solids such as sesame and meat pieces in the film 2 formed into a continuous bottomed cylindrical shape by the vertical seal portion 2A and the horizontal seal portion 2B. The object to be filled W is filled. Further, the mouth portion of the film 2 containing the material W to be filled is further fed and heat-sealed again by the horizontal sealing mechanism 6 in the horizontal direction to be in a sealed state.

【００２０】切断機構８は、図示しない対向する一対の
刃体によって、上下方向に連包状態のフィルム２の横シ
ール部２Ｂの略中央部を切り離し切断し、包装袋Ｐをぞ
れぞれ１つずつに切り離すものである。The cutting mechanism 8 cuts and cuts the substantially central portion of the horizontal seal portion 2B of the film 2 which is continuously wrapped in the vertical direction by a pair of blades (not shown) facing each other, and cuts the packaging bag P. It is to separate them one by one.

【００２１】次に、本発明の実施の形態の充填包装機に
おける電気的な構成について、図２を用いて説明する。Next, the electrical configuration of the filling and packaging machine according to the embodiment of the present invention will be described with reference to FIG.

【００２２】入力手段Ｋ１は、被充填物の温度、フィル
ム２の材質や厚み等の品種毎に異なる包装形態に応じた
温度条件（フィルム２の熱伝導率や溶融温度等の特性に
応じた条件）に基づいて設定されるヒートシールに最適
なシール体５Ｂ，６Ｂの適正温度やフィルム２をヒート
シールしない待機状態におけるシール体５Ｂ，６Ｂの予
備加熱温度を設定入力可能な生産条件入力手段であっ
て、例えばタッチパネルからなるものである。The input means K1 is provided with a temperature condition according to a packaging mode which differs for each kind such as a temperature of a material to be filled, a material and a thickness of the film 2 (a condition according to characteristics such as a thermal conductivity and a melting temperature of the film 2). ) Is a production condition input means capable of setting and inputting an appropriate temperature of the seal members 5B and 6B which is optimal for heat sealing and a preheating temperature of the seal members 5B and 6B in a standby state where the film 2 is not heat-sealed. And a touch panel, for example.

【００２３】運転状態検出手段Ｋ２は、図示しない押し
ボタンスイッチからなり、縦，横シール機構５，６の
縦，横ヒートシールロール５Ａ，６Ａの回転／停止（運
転状態）を切換えるとともに、運転状態を示す出力信号
を後述する制御手段に出力するものである。なお、運転
状態検出手段Ｋ２は、縦，横シール機構５，６だけでは
なく、充填包装機の運転／停止を切換えるための運転ス
イッチとして設けられるものであっても良い。The operating state detecting means K2 is composed of a push button switch (not shown), and switches the rotation / stop (operating state) of the vertical and horizontal heat sealing rolls 5A and 6A of the vertical and horizontal sealing mechanisms 5 and 6 and the operating state. Is output to the control means described later. The operation state detecting means K2 may be provided as an operation switch for switching between operation and stop of the filling and packaging machine in addition to the vertical and horizontal sealing mechanisms 5 and 6.

【００２４】制御手段（切換手段）Ｋ３は、例えば、マ
イクロコンピュータからなるもので、後述する処理動作
のプログラムや各種設定値が記憶されたＲＯＭ、演算値
を一時的に記憶するＲＡＭ、後述する温度データを不揮
発的に記憶するためのＥＥＰＲＯＭまたはバックアップ
ＲＡＭからなる温度データ記憶部、や前記プログラムを
実行するためのＣＰＵを有するとともに、入力手段Ｋ１
や運動状態検出手段Ｋ２，後述する各手段に対して電気
的な接続関係をなすためのＩ／Ｏインターフェイスを備
えるものである。なお、制御手段Ｋ３は、充填包装機を
電気制御する制御手段と兼用することも可能である。The control means (switching means) K3 comprises, for example, a microcomputer, a ROM in which a program for processing operations to be described later and various set values are stored, a RAM for temporarily storing calculated values, A temperature data storage unit comprising an EEPROM or a backup RAM for storing data in a nonvolatile manner; a CPU for executing the program;
And an I / O interface for establishing an electrical connection with each of the means described below. In addition, the control means K3 can also be used as a control means for electrically controlling the filling and packaging machine.

【００２５】電気ヒータＫ４は、縦，横シール機構５，
６にそれぞれ設けられる一対の縦，横ヒートシールロー
ラ５Ａ，６Ａ内にそれぞれ配設され、交流電源（例えば
ＡＣ２００Ｖ）による電力供給によって発熱するもの
で、交流電源との電気的な接続はスリップリングを介し
て行うものである。The electric heater K4 has a vertical and horizontal sealing mechanism 5,
6 are disposed in a pair of vertical and horizontal heat seal rollers 5A and 6A, respectively, and generate heat by supplying electric power from an AC power supply (for example, 200V AC). Is what you do through

【００２６】電源遮断手段Ｋ５は、後述する温度調整手
段の指令に応じて電気ヒータＫ４への電力供給の供給／
遮断を行うもので、例えばソリッドステートリレー（Ｓ
ＳＲ）が用いられる。また、電源遮断手段Ｋ５は、制御
手段Ｋ３からの温度データに基づく前記温度調整手段の
温度制御、例えば前記温度調整手段からの通電率に従う
デューティー比制御を受けることでシール体５Ｂ、６Ｂ
の温度を調整することになる。The power cut-off means K5 is adapted to supply / supply electric power to the electric heater K4 in response to a command from a temperature adjusting means to be described later.
For shutting off, for example, a solid state relay (S
SR) is used. Further, the power cutoff unit K5 receives the temperature control of the temperature adjustment unit based on the temperature data from the control unit K3, for example, the duty ratio control according to the duty ratio from the temperature adjustment unit, so that the sealing members 5B, 6B
Will adjust the temperature.

【００２７】温度検出手段Ｋ６は、縦，横シール機構
５，６にそれぞれ設けられる一対の縦，横ヒートシール
ローラ５Ａ，６Ａ内に配設されシール体５Ｂ，６Ｂの温
度を検出する熱電対からなるもので、後述する温度調整
手段との電気的な接続はスリップリングを介して行われ
る。The temperature detecting means K6 is provided in a pair of vertical and horizontal heat seal rollers 5A and 6A provided in the vertical and horizontal seal mechanisms 5 and 6, respectively, and detects the temperature of the seals 5B and 6B from a thermocouple. The electrical connection with the temperature adjusting means described later is made via a slip ring.

【００２８】温度調整手段Ｋ７は、制御手段Ｋ３から出
力される温度データ（適正温度、または予備加熱温度）
に応じて、シール体５Ｂ，６Ｂの温度が適正温度または
予備加熱温度になるように、温度検出手段Ｋ６によって
シール体５Ｂ，６Ｂの温度を監視するとともに、温度検
出手段Ｋ６からの温度情報に基づきシール体５Ｂ，６Ｂ
の温度を決定する電気ヒータＫ４への電力供給を電源遮
断手段Ｋ５を介して調整するものである。なお、温度調
整手段Ｋ７は、縦，横シール機構５，６に各々設けられ
るヒートシールロール５Ａ，６Ａ用の温度調整手段とし
てそれぞれ同様のものが設けられてなり、図２おいて
は、これを省略して示すものである。The temperature adjusting means K7 is provided with temperature data (appropriate temperature or preheating temperature) outputted from the control means K3.
The temperature of the seals 5B and 6B is monitored by the temperature detecting means K6 so that the temperature of the seals 5B and 6B becomes an appropriate temperature or a preheating temperature in accordance with the temperature information, and based on the temperature information from the temperature detecting means K6. Seal body 5B, 6B
The power supply to the electric heater K4 for determining the temperature of the heater is adjusted via the power cutoff means K5. It should be noted that the temperature adjusting means K7 is the same as the temperature adjusting means for the heat seal rolls 5A and 6A provided in the vertical and horizontal sealing mechanisms 5 and 6, respectively. This is abbreviated.

【００２９】表示手段Ｋ８は、各種設定値や運転状態を
表示する表示装置からなり、例えば、入力手段Ｋ１から
設定入力される適正温度や予備加熱温度を表示するもの
である。また、温度検出手段Ｋ６からの検出温度を表示
することもできる。なお、表示手段Ｋ９は、入力手段Ｋ
１を兼ねた表示入力可能なタッチパネルにて構成するこ
とができる。The display means K8 comprises a display device for displaying various set values and operating conditions, and displays, for example, an appropriate temperature and a preheating temperature set and inputted from the input means K1. Further, the temperature detected by the temperature detecting means K6 can be displayed. It should be noted that the display means K9 is the input means K
The touch panel can also be configured as a touch panel capable of displaying and inputting information.

【００３０】次に、制御手段Ｋ３における処理動作を図
３を用いて説明するとともに、その処理動作に基づくヒ
ートシール方法を説明する。Next, the processing operation of the control means K3 will be described with reference to FIG. 3, and a heat sealing method based on the processing operation will be described.

【００３１】制御手段Ｋ３は、情報（設定事項）を入力
可能な状態に初期化を行う（ステップＳ１）。次に、制
御手段Ｋ３は、シール体５Ｂ，６Ｂの温度設定を入力手
段Ｋ１にて設定入力されたか否かを判定する（ステップ
Ｓ２）。The control means K3 performs initialization so that information (setting items) can be input (step S1). Next, the control means K3 determines whether or not the temperature setting of the seal bodies 5B, 6B has been set and input by the input means K1 (step S2).

【００３２】なお、ステップＳ２にて、設定温度、また
は予備加熱温度を変更する場合や、新たに設定する場合
は、作業者によってフィルム２の厚み，材質，温度等の
品種毎の包装形態に応じて、入力手段Ｋ１の入力操作に
て温度設定するものであり、例えば、「縦シール体の適
正温度１８０℃，予備加熱温度１８４℃」のように設定
することができる。また、入力手段Ｋ１による設定操作
は、入力手段Ｋ１と兼ねて設けられる表示手段Ｋ８にて
適正温度または予備加熱温度を確認しながら行うことが
できる。In step S2, when the set temperature or the preheating temperature is changed or newly set, the operator sets the film 2, the thickness, the material, the temperature, etc., according to the packaging form for each product type such as the thickness, material, and temperature. The temperature is set by an input operation of the input means K1, and can be set as, for example, "appropriate temperature of vertical sealing body 180 ° C, preheating temperature 184 ° C". The setting operation by the input means K1 can be performed while confirming the appropriate temperature or the preheating temperature on the display means K8 provided also as the input means K1.

【００３３】また、制御手段Ｋ３は、ステップＳ２にて
設定された適正温度及び予備加熱温度を温度データとし
て、制御手段Ｋ３に設けられる温度データ記憶部にそれ
ぞれ格納する（ステップＳ３）。The control means K3 stores the appropriate temperature and the preheating temperature set in step S2 as temperature data in the temperature data storage section provided in the control means K3 (step S3).

【００３４】次に、制御手段Ｋ３は、縦，横ヒートシー
ルロール５Ａ，６Ａが運転状態であるか否かを、運転状
態検出手段Ｋ２の検出結果に基づいて判断する（ステッ
プＳ４）。Next, the control means K3 determines whether or not the vertical and horizontal heat seal rolls 5A and 6A are in operation based on the detection result of the operation state detection means K2 (step S4).

【００３５】ステップＳ４において、縦，横ヒートシー
ルロール５Ａ，６Ａが運転状態である場合、制御手段Ｋ
３は、シール体５Ｂ，６ＢがステップＳ３にて格納され
た温度データに基づく適正温度になるように、温度調整
手段Ｋ７に温度データを出力する（ステップＳ５）。In step S4, if the vertical and horizontal heat seal rolls 5A and 6A are in operation, the control means K
3 outputs temperature data to the temperature adjusting means K7 such that the seal members 5B and 6B have an appropriate temperature based on the temperature data stored in step S3 (step S5).

【００３６】また、ステップＳ４において、縦，横ヒー
トシールロール５Ａ，６Ａが回転駆動されていない場合
（待機状態の場合）、制御手段Ｋ３は、シール体５Ｂ，
６ＢがステップＳ３にて格納された温度データに基づく
予備加熱温度になるように、温度調整手段Ｋ７に温度デ
ータを出力する（ステップＳ６）。In step S4, when the vertical and horizontal heat seal rolls 5A, 6A are not driven to rotate (in a standby state), the control means K3 sets the seal body 5B,
The temperature data is output to the temperature adjusting means K7 so that 6B becomes the preheating temperature based on the temperature data stored in step S3 (step S6).

【００３７】前述した充填包装機の制御手段Ｋ３は、上
述したステップＳ２からステップＳ６までの処理を繰り
返すことにより、縦，横ヒートシールロール５Ａ，６Ａ
の動作状態（運転状態）に応じて、入力手段にて設定さ
れたシール体５Ｂ，６Ｂの適正温度と予備加熱温度とを
自動的に切換えることができる。The above-mentioned control means K3 of the filling and packaging machine repeats the above-mentioned processing from step S2 to step S6, so that the vertical and horizontal heat seal rolls 5A, 6A
In accordance with the operating state (operating state), the appropriate temperature and the preheating temperature of the seal bodies 5B, 6B set by the input means can be automatically switched.

【００３８】かかる充填包装機のヒートシール装置及び
ヒートシール方法によれば、縦，横ヒートシールロール
５Ａ，６Ａの待機状態時には、縦，横シール体５Ｂ，６
Ｂを適正温度よりも高温に設定される予備加熱温度にな
るように加熱しており、待機状態から運転状態に切替わ
っても、図４に示すように、シール体５Ｂ，６Ｂの温度
が適正温度以下にならないため、フィルム２をヒートシ
ールする際のシール不良を防止でき、包装機としての生
産性を低下することなく、ヒートシールを行うことがで
きる。According to the heat sealing device and the heat sealing method of the filling and packaging machine, when the vertical and horizontal heat seal rolls 5A and 6A are in a standby state, the vertical and horizontal seal bodies 5B and 6 are used.
B is heated to a preheating temperature set to a temperature higher than the appropriate temperature, and even if the state is switched from the standby state to the operation state, as shown in FIG. Since the temperature does not fall below the temperature, it is possible to prevent poor sealing when the film 2 is heat-sealed, and it is possible to heat-seal the film 2 without lowering the productivity as a packaging machine.

【００３９】また、本発明の実施の形態の制御手段Ｋ３
は、縦，横ヒートシールロール５Ａ，６Ａの待機状態か
ら運転状態に移行する際、予備加熱温度から適正温度ま
で徐々に切換えることもでき、この場合、制御手段Ｋ３
が、予備加熱温度と適正温度との間の温度に対応する温
度データを段階的に温度調整手段Ｋ７へ出力することに
よって、縦，横シール体５Ｂ，６Ｂの温度が徐々に変化
するように調整することができる。従って、縦，横シー
ル体５Ｂ，６Ｂの温度変化が滑らかになるため、縦，横
ヒートシールロール５Ａ，６Ａの待機状態から運転状態
に移行する際に起こり得る、縦，横シール体５Ｂ，６Ｂ
の急激な温度低下を抑制することができる。Further, the control means K3 of the embodiment of the present invention
Can shift gradually from the preheating temperature to the appropriate temperature when the vertical and horizontal heat seal rolls 5A and 6A are shifted from the standby state to the operating state. In this case, the control means K3
However, by outputting the temperature data corresponding to the temperature between the preheating temperature and the appropriate temperature to the temperature adjusting means K7 in a stepwise manner, the temperature of the vertical and horizontal seal bodies 5B and 6B is adjusted so as to gradually change. can do. Therefore, since the temperature change of the vertical and horizontal seal bodies 5B and 6B becomes smooth, the vertical and horizontal seal bodies 5B and 6B may occur when the vertical and horizontal heat seal rolls 5A and 6A shift from the standby state to the operating state.
Abrupt temperature drop can be suppressed.

【００４０】また、本発明の実施の形態の制御手段Ｋ３
は、一対のヒートシールロール５Ａ，６Ａを備えるヒー
トシール機構５，６の運転状態を検出する運転状態検出
手段Ｋ２からの検出信号に基づいて、適正温度と予備加
熱温度とを切換えてなることによって、作業者がヒート
シールロールの運転状態を監視しながら随時調整操作す
ることなく、自動的にシール体の温度調整を行うことが
できる。The control means K3 according to the embodiment of the present invention.
Is switched between an appropriate temperature and a preheating temperature based on a detection signal from an operation state detecting means K2 for detecting an operation state of the heat seal mechanisms 5, 6 including a pair of heat seal rolls 5A, 6A. In addition, the temperature of the seal body can be automatically adjusted without the need for the operator to adjust the temperature while monitoring the operating state of the heat seal roll.

【００４１】また、適正温度、及び予備加熱温度を設定
するための入力手段Ｋ１を備えてなることにより、品種
毎の包装形態が異なる場合であっても、作業者が品種毎
の包装形態に応じた温度特性に基づいて設定入力するこ
とができ、汎用性の有するヒートシール装置となる。Further, by providing the input means K1 for setting the appropriate temperature and the preheating temperature, even if the packaging form for each type is different, the operator can adjust the packaging mode for each type. The heat seal device can be set and input based on the temperature characteristics of the heat seal device and has versatility.

【００４２】また、入力手段Ｋ１によって設定される適
正温度及び予備加熱温度を表示する表示手段Ｋ８を備え
てなることにより、作業者が設定された各温度を容易に
確認することが可能となるため、ヒートシール機構にお
けるシール条件を簡単に把握することができる。Since the display device K8 for displaying the appropriate temperature and the preheating temperature set by the input device K1 is provided, the operator can easily confirm the set temperatures. In addition, the sealing conditions in the heat sealing mechanism can be easily grasped.

【００４３】なお、本発明の実施の形態では、切換手段
としてマイクロコンピュータからなる制御手段Ｋ３を用
いて温度調整手段Ｋ７を切換えるものを例に挙げ説明し
たが、本発明はこれに限定されるものではなく、例え
ば、切換手段として切換スイッチを設けることで温度調
節手段を手動にて調整するものであっても良い。In the embodiment of the present invention, an example has been described in which the temperature control means K7 is switched using the control means K3 comprising a microcomputer as the switching means, but the present invention is not limited to this. Instead, for example, the temperature adjustment means may be manually adjusted by providing a changeover switch as the changeover means.

【００４４】また、本発明の実施の形態の運転状態検出
手段Ｋ２は、作業者が充填包装機を操作するための運転
スイッチを兼用したものを例に挙げて説明したが、本発
明はこれに限定されず、シール体を有するヒートシール
機構の運転状態を検出することが可能なものであれば良
く、例えば、横ヒートシールロール６Ｂの回転動作を検
出する図示しない回転検出センサや、駆動手段Ｍ１，Ｍ
２の駆動動作に応じたエンコーダ信号（エンコーダパル
ス）を出力する駆動回路からなるものであっても良い。Further, the operating state detecting means K2 according to the embodiment of the present invention has been described by way of example in which the operating switch for operating the filling and packaging machine is also used by the operator, but the present invention is not limited to this. The invention is not limited thereto, and any device capable of detecting the operating state of the heat sealing mechanism having the seal body may be used. For example, a rotation detection sensor (not shown) for detecting the rotation operation of the horizontal heat seal roll 6B, the driving unit M1 , M
2 may include a drive circuit that outputs an encoder signal (encoder pulse) according to the drive operation of Step 2.

【００４５】また、請求項７に記載の本発明にあって
は、上述した各手段によって構成されるものに限定され
ず、加熱手段によって加熱されるシール体におけるヒー
トシールのための適正温度、または前記適正温度よりも
高い予備加熱温度を少なくとも設定温度として定め、前
記フィルムをヒートシールしない待機状態の際に、前記
シール体の温度が予備加熱温度になるように調整し、前
記フィルムをヒートシールする通常状態の際に、前記シ
ール体の温度が前記適正温度になるように調整するもの
であれば、任意の手段から構成されるものであっても良
い。Further, the present invention according to claim 7 is not limited to the one constituted by the above-described means, but may be an appropriate temperature for heat sealing in the seal body heated by the heating means, or A preheating temperature higher than the appropriate temperature is set as at least a set temperature, and in a standby state in which the film is not heat-sealed, the temperature of the sealing body is adjusted to the preheating temperature, and the film is heat-sealed. Any means may be used as long as the temperature of the seal body is adjusted to the appropriate temperature in the normal state.

【００４６】[0046]

【発明の効果】本発明は、フィルムにヒートシールを施
すヒートシール装置及びヒートシール方法であって、加
熱手段によって加熱されるシール体におけるヒートシー
ルのための適正温度、または前記適正温度よりも高い予
備加熱温度を少なくとも設定温度として定め、前記フィ
ルムをヒートシールしない待機状態の際に、前記シール
体の温度が予備加熱温度になるように調整し、前記フィ
ルムをヒートシールする通常状態の際に、前記シール体
の温度が前記適正温度になるように調整することによっ
て、シール不良を防止した生産性の良いヒートシール装
置とヒートシール方法を提供することができる。The present invention relates to a heat-sealing apparatus and a heat-sealing method for heat-sealing a film, wherein the heat-sealing temperature of a heat-sealing body heated by a heating means is higher than the proper temperature. Preliminary heating temperature is determined as at least a set temperature, and in a standby state where the film is not heat-sealed, the temperature of the sealing body is adjusted to be a pre-heating temperature, and in a normal state in which the film is heat-sealed, By adjusting the temperature of the sealing body to be the appropriate temperature, it is possible to provide a heat-sealing apparatus and a heat-sealing method which prevent poor sealing and have high productivity.

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

【図１】本発明の実施の形態の全体平面図。FIG. 1 is an overall plan view of an embodiment of the present invention.

【図２】本発明の実施の形態による制御手段の電気的構
成を示すブロック図。FIG. 2 is a block diagram showing an electrical configuration of a control unit according to the embodiment of the present invention.

【図３】本発明の実施の形態による制御手段の処理方法
を示す流れ図。FIG. 3 is a flowchart showing a processing method of a control unit according to the embodiment of the present invention.

【図４】本発明の実施の形態によるシール体の温度変化
を示す図。FIG. 4 is a diagram showing a temperature change of a seal body according to the embodiment of the present invention.

【図５】従来のシール体の温度変化を示す図。FIG. 5 is a diagram showing a temperature change of a conventional seal body.

【符号の説明】 ２ フィルム ５ 縦シール機構（ヒートシール装置） ５Ｂ 縦シール体（シール体） ６ 横シール機構（ヒートシール装置） ６Ｂ 横シール体（シール体） Ｋ１ 入力手段 Ｋ２ 運転状態検出手段 Ｋ３ 制御手段（切換手段） Ｋ４ 電気ヒータ（加熱手段） Ｋ６ 温度検出手段 Ｋ７ 温度調整手段 Ｋ８ 表示手段[Description of Signs] 2 Film 5 Vertical seal mechanism (heat seal device) 5B Vertical seal body (seal body) 6 Horizontal seal mechanism (heat seal apparatus) 6B Horizontal seal body (seal body) K1 Input means K2 Operating state detecting means K3 Control means (switching means) K4 Electric heater (heating means) K6 Temperature detecting means K7 Temperature adjusting means K8 Display means

Claims (8)

【特許請求の範囲】[Claims] 【請求項１】フィルムにヒートシールを施すヒートシー
ル装置であって、加熱手段によって加熱されるシール体
を備え、前記シール体におけるヒートシールのための適
正温度、または前記適正温度よりも高い予備加熱温度を
設定可能とする温度調整手段を備え、前記フィルムをヒ
ートシールしない待機状態の際に前記予備加熱温度にな
るように前記温度調整手段を調整し、前記フィルムをヒ
ートシールする通常状態の際に前記適正温度になるよう
に前記温度調整手段を切換える切換手段を備えてなるこ
とを特徴とするヒートシール装置。1. A heat-sealing apparatus for heat-sealing a film, comprising a seal body heated by a heating means, and a pre-heating temperature suitable for heat sealing in the seal body or higher than the proper temperature. A temperature adjusting means for setting a temperature is provided, and the temperature adjusting means is adjusted to be the preheating temperature in a standby state in which the film is not heat-sealed, and in a normal state in which the film is heat-sealed. A heat sealing device, comprising: switching means for switching the temperature adjusting means so as to reach the appropriate temperature. 【請求項２】前記切換手段は、前記シール体を有するヒ
ートシール機構の運転状態を検出する運転状態検出手段
からの検出信号に基づいて、前記適正温度と前記予備加
熱温度とを切換えてなることを特徴とする請求項１に記
載のヒートシール装置。2. The apparatus according to claim 1, wherein the switching means switches between the proper temperature and the preheating temperature based on a detection signal from an operating state detecting means for detecting an operating state of the heat sealing mechanism having the seal body. The heat sealing device according to claim 1, wherein: 【請求項３】前記シール体の温度を検出する温度検出手
段を備え、前記温度調整手段は、前記温度検出手段によ
って検出される温度データに応じて、前記シール体の温
度が前記予備加熱温度、または前記適正温度のなるよう
に調整することを特徴とする請求項１または請求項２に
記載のヒートシール装置。3. A temperature detecting means for detecting a temperature of the seal body, wherein the temperature adjusting means adjusts the temperature of the seal body to the preheating temperature, in accordance with temperature data detected by the temperature detecting means. The heat sealing apparatus according to claim 1, wherein the temperature is adjusted to be the appropriate temperature. 【請求項４】前記切換手段は、品種毎の包装形態に応じ
た温度特性に基づいて、予備加熱温度から適正温度まで
の温度変化を徐々に変化させるように前記温度調整手段
を調整してなることを特徴とする請求項１から請求項３
の何れかに記載のヒートシール装置。4. The switching means adjusts the temperature adjusting means so as to gradually change a temperature change from a preheating temperature to an appropriate temperature based on a temperature characteristic according to a packaging form for each type. 4. The method according to claim 1, wherein
The heat sealing device according to any one of the above. 【請求項５】前記適正温度、及び前記予備加熱温度を設
定するための入力手段を備えてなることを特徴とする請
求項１から請求項４の何れかに記載のヒートシール装
置。5. The heat sealing apparatus according to claim 1, further comprising input means for setting the appropriate temperature and the preheating temperature. 【請求項６】前記入力手段によって設定される前記適正
温度及び前記予備加熱温度を表示する表示手段を備えて
なることを特徴とする請求項５に記載のヒートシール装
置。6. The heat sealing apparatus according to claim 5, further comprising display means for displaying said proper temperature and said preheating temperature set by said input means. 【請求項７】フィルムにヒートシールを施すヒートシー
ル装置のヒートシール方法であって、加熱手段によって
加熱されるシール体におけるヒートシールのための適正
温度、または前記適正温度よりも高い予備加熱温度を少
なくとも設定温度として定め、前記フィルムをヒートシ
ールしない待機状態の際に、前記シール体の温度が予備
加熱温度になるように調整し、前記フィルムをヒートシ
ールする通常状態の際に、前記シール体の温度が前記適
正温度になるように調整することを特徴とするヒートシ
ール方法。7. A heat-sealing method for a heat-sealing apparatus for heat-sealing a film, comprising: setting a proper temperature for heat-sealing in a sealed body heated by a heating means, or a preheating temperature higher than the proper temperature. At least as a set temperature, in a standby state where the film is not heat-sealed, the temperature of the seal body is adjusted to be a preheating temperature, and in a normal state where the film is heat-sealed, A heat sealing method, wherein the temperature is adjusted so as to be the appropriate temperature. 【請求項８】品種毎の包装形態に応じた温度特性に基づ
いて、前記予備加熱温度と前記適正温度との切換えを、
前記シール体の温度が前記予備加熱温度から前記適正温
度に移行する際に、前記予備加熱温度と前記適正温度と
の温度変化分において徐々に変化させることを特徴とす
る請求項７に記載のヒートシール方法。8. Switching between the preheating temperature and the appropriate temperature based on temperature characteristics according to a packaging mode for each product type.
The heat according to claim 7, wherein when the temperature of the seal body shifts from the preheating temperature to the appropriate temperature, the temperature is gradually changed by a temperature change between the preheating temperature and the appropriate temperature. Sealing method.
JP2000397545A 2000-12-27 2000-12-27 Heat sealing apparatus and heat sealing method using the same Pending JP2002193217A (en)

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JP2002193217A5 JP2002193217A5 (en) 2005-08-25

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JP2012081984A (en) * 2010-10-12 2012-04-26 Fuji Machinery Co Ltd Sealing temperature control device in bag form-fill-seal machine
JP2012176801A (en) * 2010-06-09 2012-09-13 Yuyama Manufacturing Co Ltd Device for individually packaging medicine
WO2016103127A1 (en) * 2014-12-25 2016-06-30 株式会社半導体エネルギー研究所 Secondary battery, method for manufacturing secondary battery, and device for manufacturing secondary battery
JP2020093505A (en) * 2018-12-14 2020-06-18 花王株式会社 Sheet bonding method
DE102021116967A1 (en) 2021-07-01 2023-01-05 Rovema Gmbh Process for operating a tubular bagging machine
EP4371742A1 (en) * 2022-11-17 2024-05-22 Syntegon Packaging Solutions B.V. Sealing device, packaging machine and method for operating a sealing device

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JP2012176801A (en) * 2010-06-09 2012-09-13 Yuyama Manufacturing Co Ltd Device for individually packaging medicine
JP2012081984A (en) * 2010-10-12 2012-04-26 Fuji Machinery Co Ltd Sealing temperature control device in bag form-fill-seal machine
WO2016103127A1 (en) * 2014-12-25 2016-06-30 株式会社半導体エネルギー研究所 Secondary battery, method for manufacturing secondary battery, and device for manufacturing secondary battery
JP2020093505A (en) * 2018-12-14 2020-06-18 花王株式会社 Sheet bonding method
DE102021116967A1 (en) 2021-07-01 2023-01-05 Rovema Gmbh Process for operating a tubular bagging machine
EP4371742A1 (en) * 2022-11-17 2024-05-22 Syntegon Packaging Solutions B.V. Sealing device, packaging machine and method for operating a sealing device

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