JPH1035621A - Method and device for making bag - Google Patents

Method and device for making bag

Info

Publication number
JPH1035621A
JPH1035621A JP8210484A JP21048496A JPH1035621A JP H1035621 A JPH1035621 A JP H1035621A JP 8210484 A JP8210484 A JP 8210484A JP 21048496 A JP21048496 A JP 21048496A JP H1035621 A JPH1035621 A JP H1035621A
Authority
JP
Japan
Prior art keywords
film
infrared
heating device
heat
infrared heating
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.)
Withdrawn
Application number
JP8210484A
Other languages
Japanese (ja)
Inventor
Mitsuru Kunii
満 国井
Akihiro Koshi
明広 越
Hideyuki Murakami
秀幸 村上
Nobuyuki Kamishioiri
伸之 上塩入
Masaaki Suzuki
雅晶 鈴木
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.)
Kao Corp
Original Assignee
Kao Corp
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 Kao Corp filed Critical Kao Corp
Priority to JP8210484A priority Critical patent/JPH1035621A/en
Publication of JPH1035621A publication Critical patent/JPH1035621A/en
Withdrawn legal-status Critical Current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
    • B29C66/01—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
    • 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
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • 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
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1403—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the type of electromagnetic or particle radiation
    • B29C65/1412—Infrared [IR] radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • 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
    • B29C66/91411—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 parts to be joined, e.g. the joining process taking the temperature of the parts to be joined into account
    • 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
    • B29C66/9141—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
    • B29C66/91445—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 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
    • B29C66/914—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
    • B29C66/98—Determining the joining area by using markings on at least one of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8351—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws
    • B29C66/83541—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws flying jaws, e.g. jaws mounted on crank mechanisms or following a hand over hand movement
    • 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
    • B29C66/851—Bag or container making machines
    • B29C66/8511—Bag making machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/95—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94
    • B29C66/959—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 characterised by specific values or ranges of said specific variables
    • B29C66/9592—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 characterised by specific values or ranges of said specific variables in explicit relation to another variable, e.g. X-Y diagrams

Abstract

PROBLEM TO BE SOLVED: To simplify and downsize an apparatus and improve heating efficiency so as to shorten the sealing time by heating a seal part having a fixed width with infrared rays perpendicularly to the flow of a twofold film for heat sealing. SOLUTION: When a film 1 folded into two is continuously fed, the whole of the film 1 is preheated with infrared radiation by a preheat heating device 11. Next, a seal part 2 having a fixed width of the film 1 is heated by an infrared heating device 12. At this time, a matchmark 3 of the film 1 is detected by a detector and a reciprocating device 24 is controlled. A part to be irradiated with infrared radiation by the infrared heating device 12 is made to follow up the movement of the seal part 2 having the fixed width of the film 1 so as to move the infrared heating device 12 forward. Next, the heated seal part 2 having the fixed width is pressed by a press-attaching roll 15 so as to seal with heat. Thereafter, the central part of the seal part 2 having the fixed width which is sealed with heat of the film 1 is cut off, so that a sheet of bag can be obtained. Thus, bag-making can be speeded up.

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】本発明は熱可塑性フィルムを
ヒートシールして袋とする製袋方法及び装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for making a bag by heat sealing a thermoplastic film.

【０００２】[0002]

【従来の技術】従来の製袋方法は、特開昭59-152125 号
公報に記載の如く、帯状熱可塑性フィルムを筒状に成形
し、該筒状フィルムの重ね合せシール部にホットエアノ
ズルから吹出される熱風を当てることにより、該重ね合
せシール部を加熱した後、該重ね合せシール部を圧着ロ
ーラにより加圧してヒートシールすることとしている。2. Description of the Related Art As described in Japanese Patent Application Laid-Open No. Sho 59-152125, a conventional bag-making method is to form a belt-shaped thermoplastic film into a tube and blow it out from a hot air nozzle into a lap seal portion of the tube-shaped film. After applying the hot air to heat the overlapping seal portion, the overlapping seal portion is pressurized by a pressure roller and heat-sealed.

【０００３】[0003]

【発明が解決しようとする課題】然しながら、従来技術
には下記〜の問題点がある。 熱源からフィルムまで熱風を送るため、ブロワ等の送
風設備が必要となり、設備が複雑大型である。However, the prior art has the following problems. Since hot air is sent from the heat source to the film, a blowing device such as a blower is required, and the device is complicated and large.

【０００４】フィルムの加熱媒体として空気を用いて
いるので、先ず空気を加熱し、次にその加熱空気（熱
風）からの熱伝達によってフィルムを加熱するものであ
る。従って、空気からフィルムヘの熱伝達効率は低く、
熱風も一部しかヒートシールに用いられず、加熱効率が
悪い。[0004] Since air is used as a heating medium for the film, the air is heated first, and then the film is heated by heat transfer from the heated air (hot air). Therefore, the heat transfer efficiency from air to the film is low,
Only a part of the hot air is used for heat sealing, and the heating efficiency is poor.

【０００５】熱風はフィルムの表面を加熱するだけで
あり、シールに関係する内部を適温に加熱するまでには
長時間を要する。[0005] Hot air only heats the surface of the film, and it takes a long time to heat the interior related to the seal to an appropriate temperature.

【０００６】本発明の課題は、設備の簡素小型化を図る
とともに、ヒートシールの加熱効率の向上とシール時間
の短縮を実現し、製袋の高速化を図ることにある。SUMMARY OF THE INVENTION It is an object of the present invention to provide a simple and compact facility, improve the heating efficiency of heat sealing and shorten the sealing time, and speed up bag making.

【０００７】[0007]

【課題を解決するための手段】請求項１に記載の本発明
は、帯状熱可塑性フィルムを２つ折りに成形し、該２つ
折りフィルムの流れと直角方向に、一定の幅でヒートシ
ールする製袋方法において、一定幅のシール部を赤外線
加熱してヒートシールするようにしたものである。According to the first aspect of the present invention, there is provided a bag-making method comprising forming a belt-shaped thermoplastic film into two folds, and heat-sealing with a constant width in a direction perpendicular to the flow of the two-fold film. In the method, a seal portion having a fixed width is heat-sealed by infrared heating.

【０００８】請求項２に記載の本発明は、請求項１に記
載の本発明において更に、前記２つ折りフィルムの一定
幅のシール部を赤外線加熱する前工程で、該２つ折りフ
ィルムを予備的に赤外線加熱するようにしたものであ
る。According to a second aspect of the present invention, in the first aspect of the present invention, the two-fold film is preliminarily preliminarily heated in a step prior to infrared heating of the seal portion having a fixed width of the two-fold film. Infrared heating is used.

【０００９】請求項３に記載の本発明は、請求項１又は
２に記載の本発明において更に、前記２つ折りフィルム
を連続的に送給する過程で、前記赤外線の照射先を該２
つ折りフィルムの一定幅のシール部の移動に追従制御せ
しめるようにしたものである。According to a third aspect of the present invention, in the first or second aspect of the present invention, further, in the process of continuously feeding the two-fold film, the irradiation destination of the infrared ray is set to the second one.
The control is made so as to follow the movement of the seal portion having a constant width of the folded film.

【００１０】請求項４に記載の本発明は、帯状熱可塑性
フィルムを２つ折りに成形し、該２つ折りフィルムの流
れと直角方向に、一定の幅で加熱装置により加熱してヒ
ートシールする製袋装置において、前記加熱装置が赤外
線加熱装置であるようにしたものである。According to a fourth aspect of the present invention, a belt-shaped thermoplastic film is formed into two folds, and is heat-sealed by a heating device at a constant width in a direction perpendicular to the flow of the two-folded film. In the apparatus, the heating device is an infrared heating device.

【００１１】請求項５に記載の本発明は、請求項４に記
載の本発明において更に、前記赤外線加熱装置の前段
に、前記２つ折りフィルムを予備的に赤外線加熱する予
備加熱装置を設けてなるようにしたものである。According to a fifth aspect of the present invention, in addition to the fourth aspect of the present invention, a preliminary heating device for preliminary infrared heating of the two-fold film is provided before the infrared heating device. It is like that.

【００１２】請求項６に記載の本発明は、請求項４又は
５に記載の本発明において更に、前記２つ折りフィルム
を連続的に送給するフィルム送給装置と、該２つ折りフ
ィルムの一定幅のシール部が前記赤外線加熱装置による
加熱領域を通過するタイミングを検出する検出器と、検
出器の検出結果を得て、該赤外線加熱装置による赤外線
の照射先を該２つ折りフィルムの一定幅のシール部の移
動に追従制御せしめる制御装置とを有してなるようにし
たものである。According to a sixth aspect of the present invention, there is provided the present invention as set forth in the fourth or fifth aspect, further comprising a film feeding device for continuously feeding the two-fold film, and a fixed width of the two-fold film. A detector for detecting the timing at which the sealing portion passes through the heating area by the infrared heating device, and obtaining a detection result of the detector, and irradiating the infrared irradiation by the infrared heating device with a fixed-width seal of the two-fold film. And a control device for performing control to follow the movement of the section.

【００１３】請求項１、４に記載の本発明によれば下記
〜の作用がある。 赤外線加熱装置は、熱源（赤外線ランプ）から赤外線
を直接的にフィルムに照射するものであるため、設備を
簡素化、小型化できる。According to the first and fourth aspects of the present invention, the following effects are obtained. Since the infrared heating device irradiates infrared rays directly from the heat source (infrared lamp) to the film, the equipment can be simplified and downsized.

【００１４】赤外線加熱装置は、赤外線を直接的にフ
ィルムに照射して加熱するため、加熱効率が良い。ま
た、赤外線は特定部分（一定幅のシール部）に集中させ
易いから、発生した赤外線を効率良く照射できる。The infrared heating device has a high heating efficiency because the film is heated by directly irradiating infrared rays to the film. Further, since the infrared rays are easily concentrated on a specific portion (a seal portion having a fixed width), the generated infrared rays can be efficiently irradiated.

【００１５】赤外線加熱装置は、赤外線の特性によ
り、フィルムの表面と内部を同時に加熱できる。従っ
て、シールに関係するフィルム内部を短時間で適温に加
熱できる。これにより、ヒートシール時間を短縮化し、
製袋の高速化を図ることができる。The infrared heating device can simultaneously heat the surface and the inside of the film due to the characteristics of infrared rays. Therefore, the inside of the film related to the seal can be heated to an appropriate temperature in a short time. This shortens the heat sealing time,
The speed of bag making can be increased.

【００１６】請求項２、５に記載の本発明によれば下記
の作用がある。 フィルムの一定幅のシール部を赤外線加熱する赤外線
加熱装置の前段に、該フィルムを予備的に赤外線加熱す
る予備加熱装置を設けた。このフィルムの予熱により、
２つ折りフィルムの温度を全体的に均一化するととも
に、赤外線加熱装置による一定幅のシール部の加熱時間
をより短縮可能としてヒートシール時間の短縮を図り、
結果として製袋のより高速化を実現できる。According to the present invention, the following effects are obtained. A preliminary heating device for preliminary infrared heating of the film was provided at a stage preceding the infrared heating device for infrared heating the seal portion having a fixed width of the film. By preheating this film,
In addition to making the temperature of the two-fold film uniform throughout, the heating time of the sealing portion of a fixed width by the infrared heating device can be further shortened, thereby shortening the heat sealing time.
As a result, higher speed of bag making can be realized.

【００１７】請求項３、６に記載の本発明によれば下記
の作用がある。 赤外線加熱装置による赤外線の照射が、連続的に送給
されるフィルムの一定幅のシール部に追従するようにな
されるので、加熱効率を向上させながら、製袋のより高
速化を実現できる。According to the third and sixth aspects of the present invention, the following effects are obtained. Irradiation of infrared rays by the infrared heating device follows a constant width seal portion of the film which is continuously fed, so that it is possible to achieve higher speed of bag making while improving heating efficiency.

【００１８】[0018]

【発明の実施の形態】図１は製袋装置の全体を示す模式
図、図２は製袋装置の詳細を示す模式図、図３は赤外線
加熱装置の制御系統を示す模式図、図４は赤外線加熱装
置の制御フローを示す模式図、図５はフィルムの加熱制
御パターンを示す模式図、図６は赤外線加熱装置の電力
制御パターンと追従制御パターンを示す模式図、図７は
赤外線加熱装置の一例を示す模式図、図８は赤外線ラン
プの波長と放射エネルギーの関係を示す模式図である。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic view showing the entire bag making apparatus, FIG. 2 is a schematic view showing details of the bag making apparatus, FIG. 3 is a schematic view showing a control system of an infrared heating apparatus, and FIG. 5 is a schematic diagram illustrating a control flow of the infrared heating device, FIG. 5 is a schematic diagram illustrating a heating control pattern of the film, FIG. 6 is a schematic diagram illustrating a power control pattern and a tracking control pattern of the infrared heating device, and FIG. FIG. 8 is a schematic diagram showing an example, and FIG. 8 is a schematic diagram showing the relationship between the wavelength of an infrared lamp and radiant energy.

【００１９】製袋装置１０は、図１、図２に示す如く、
予備加熱装置１１、赤外線加熱装置１２、水冷遮蔽板１
３、圧着ロール１５、送りロール１６を有している。製
袋装置１０は、帯状熱可塑性フィルム１を送りロール１
６により連続的に送給する過程で、フォーミング装置
（不図示）により２つ折りに成形し、該２つ折りフィル
ム１の全体を予備加熱装置１１により予熱した後、赤外
線加熱装置１２により該２つ折りフィルム１の一定幅の
シール部２（ヒートシール部）を赤外線加熱し、続いて
この加熱した一定幅のシール部２を圧着ロール１５によ
り加圧してヒートシールする。そして、２つ折りフィル
ム１のヒートシールされた一定幅のシール部２の中央部
を切断することにより、各 1枚の袋とすることができ
る。As shown in FIGS. 1 and 2, the bag making apparatus 10 comprises:
Preheating device 11, infrared heating device 12, water-cooled shielding plate 1
3, a pressure roll 15 and a feed roll 16 are provided. The bag making apparatus 10 feeds the belt-shaped thermoplastic film 1
6, the sheet is formed into two folds by a forming device (not shown), the whole of the two-fold film 1 is preheated by a preheating device 11, and then the two-fold film is The constant-width seal portion 2 (heat-sealing portion) is heated by infrared rays, and then the heated constant-width seal portion 2 is heat-sealed by pressing with a pressure roll 15. Then, the central portion of the heat-sealed fixed-width seal portion 2 of the folded film 1 is cut into one bag each.

【００２０】然るに、予備加熱装置１１は、赤外線加熱
装置１２の前段に設置され、遠赤外線ランプ１１Ａを熱
源とし、２つ折りフィルム１の全体を予備的に赤外線加
熱する。この予備的な赤外線加熱は、(a) フィルム温度
の均一化、(b) ヒートシール時間の短縮化を実現可能と
する。However, the preheating device 11 is installed in front of the infrared heating device 12 and uses the far-infrared lamp 11A as a heat source to preliminarily heat the entire folded film 1 by infrared. This preliminary infrared heating makes it possible to (a) make the film temperature uniform and (b) shorten the heat sealing time.

【００２１】赤外線加熱装置１２は、近赤外線ランプ１
２Ａを熱源とし、２つ折りフィルム１の一定幅のシール
部２を赤外線加熱する。このとき、赤外線加熱装置１２
は、追従装置２１により、赤外線ランプ１２Ａが発する
赤外線の照射先を該フィルム１の一定幅のシール部２の
移動に追従制御せしめるようになっている。The infrared heating device 12 includes the near-infrared lamp 1
2A is used as a heat source to heat the seal portion 2 having a fixed width of the folded film 1 by infrared rays. At this time, the infrared heating device 12
The following device 21 controls the irradiation destination of the infrared ray emitted from the infrared lamp 12A to follow the movement of the seal portion 2 having a constant width of the film 1.

【００２２】即ち、追従装置２１は、図３に示す如く、
検出器（光電管）２２と、制御装置（コントローラドラ
イバ）２３と、往復動装置（サーボモータ）２４とを有
する。このとき、赤外線加熱装置１２は、サーボモータ
等により往復動（直線往復動もしくは首振り往復動）せ
しめられる往復動装置２４に搭載される。そして、フィ
ルム１は袋の製造間隔である一定ピッチ（Ｐ）毎に、ア
イマーク３を設けていて、検出器２２は赤外線加熱装置
１２の原位置からｎ×ｐ（ｎは正数）だけフィルム１の
送給ラインの下流（もしくは上流）に設置されている。
従って、フィルム１のアイマーク３を検出する検出器２
２の検出結果により、フィルム１の一定幅のシール部２
が赤外線加熱装置１２の原位置を通過するタイミング
（赤外線加熱装置１２による加熱領域を通過するタイミ
ング）を検出できる。これにより、制御装置２３は、図
４に示す如く、検出器２２の検出結果を得て、フィルム
１の一定幅のシール部２が赤外線加熱装置１２の原位置
を通過するタイミングで赤外線加熱装置１２をフィルム
１の送給速度と同一速度で往動開始せしめるように往復
動装置２４を制御することにより、赤外線加熱装置１２
による赤外線の照射先をフィルム１の一定幅のシール部
２の移動に追従制御せしめる。尚、制御装置２３は、赤
外線加熱装置１２が往動端に達したとき、赤外線加熱装
置１２を原位置まで復動せしめるように往復動装置２４
を制御する。That is, as shown in FIG.
It has a detector (photoelectric tube) 22, a control device (controller driver) 23, and a reciprocating device (servo motor) 24. At this time, the infrared heating device 12 is mounted on a reciprocating device 24 that is reciprocated (linear reciprocating motion or swinging reciprocating motion) by a servomotor or the like. The film 1 is provided with an eye mark 3 at every constant pitch (P), which is the bag manufacturing interval, and the detector 22 is n × p (n is a positive number) from the original position of the infrared heating device 12. It is installed downstream (or upstream) of one feed line.
Therefore, the detector 2 for detecting the eye mark 3 of the film 1
2, the seal portion 2 having a fixed width of the film 1 is obtained.
Can be detected at the time when the laser beam passes through the original position of the infrared heating device 12 (the timing when the laser beam passes through the heating area of the infrared heating device 12). As a result, as shown in FIG. 4, the control device 23 obtains the detection result of the detector 22, and at the timing when the seal portion 2 having a certain width of the film 1 passes through the original position of the infrared heating device 12, Of the infrared heating device 12 by controlling the reciprocating device 24 to start the forward movement at the same speed as the feeding speed of the film 1.
Is controlled to follow the movement of the seal portion 2 having a constant width of the film 1. When the infrared heating device 12 reaches the forward end, the control device 23 controls the reciprocating device 24 so as to return the infrared heating device 12 to the original position.
Control.

【００２３】尚、フィルム１の送給ラインに沿う位置
で、赤外線加熱装置１２による加熱領域の両側には、水
冷遮蔽板１３が設置されている。水冷遮蔽板１３は、赤
外線加熱装置１２の加速減速時の赤外線の照射からフィ
ルム１を保護するものである。A water-cooling shielding plate 13 is provided at a position along the feed line of the film 1 on both sides of the heating area by the infrared heating device 12. The water-cooling shielding plate 13 protects the film 1 from irradiation with infrared rays when the infrared heating device 12 is accelerated and decelerated.

【００２４】また、予備加熱装置１１と赤外線加熱装置
１２によるフィルム１の加熱温度は例えば図５に示す如
くに制御される。予備加熱装置１１による予熱部Ａで特
定温度まで予熱した後、赤外線加熱装置１２による加熱
部Ｂで本加熱する。The heating temperature of the film 1 by the preheating device 11 and the infrared heating device 12 is controlled, for example, as shown in FIG. After preheating to a specific temperature in the preheating unit A by the preheating device 11, main heating is performed in the heating unit B by the infrared heating device 12.

【００２５】また、赤外線加熱装置１２に供給する加熱
のための電力は、図６に示す如く、赤外線加熱装置１２
がフィルム１の一定幅のシール部２に追従している定常
的な往動時（加熱作業中）のみオンとし、省エネルギー
を図る。The heating power supplied to the infrared heating device 12 is, as shown in FIG.
Is turned on only at the time of steady forward movement (during heating operation) following the seal portion 2 having a fixed width of the film 1 to save energy.

【００２６】また、予備加熱装置１１と赤外線加熱装置
１２は、図７に示す如く、赤外線ランプ１１Ａ、１２Ａ
の背後に水冷部１１Ｂ、１２Ｂを備える。加熱装置１
１、１２はそれらの焦点がフィルム１の表面に合致する
ように設定される。そして、赤外線ランプの放射エネル
ギーは波長に対して図８の如くに変化する。本実施形態
では、予備加熱装置１１に遠赤外線ランプ１１Ａを用
い、赤外線加熱装置１２に近赤外線ランプ１２Ａを用い
ることとした。As shown in FIG. 7, the preheating device 11 and the infrared heating device 12 are provided with infrared lamps 11A and 12A.
Are provided with water cooling units 11B and 12B. Heating device 1
1 and 12 are set so that their focal points coincide with the surface of the film 1. Then, the radiant energy of the infrared lamp changes with respect to the wavelength as shown in FIG. In the present embodiment, the far-infrared lamp 11A is used as the preheating device 11, and the near-infrared lamp 12A is used as the infrared heating device 12.

【００２７】従って、製袋装置１０による製袋手順は以
下の如くなされる。 (1) ２つ折り成形されたフィルム１を連続的に送給す
る。Accordingly, a bag making procedure by the bag making apparatus 10 is performed as follows. (1) The film 1 formed into two folds is continuously fed.

【００２８】(2) 予備加熱装置１１によりフィルム１の
全体を赤外線予熱する。(2) The whole of the film 1 is pre-infrared by the pre-heating device 11.

【００２９】(3) 赤外線加熱装置１２によりフィルム１
の一定幅のシール部２を赤外線加熱する。このとき、図
４に示す如く、検出器２２によりフィルム１のアイマー
ク３を検出し（アイマーク検出）、この検出結果を得た
制御装置２３は往復動装置２４を制御し、赤外線加熱装
置１２による赤外線の照射先をフィルム１の一定幅のシ
ール部２の移動に追従せしめるように赤外線加熱装置１
２を往動せしめる（ランプ追従）。そして、赤外線加熱
装置１２が往動端に達したとき、制御装置２３は赤外線
加熱装置１２を原位置まで復動させ（ランプ戻り）、原
位置にて待機せしめる（アイマーク待ち）。(3) Film 1 by infrared heating device 12
Is heated by infrared rays. At this time, as shown in FIG. 4, the eye mark 3 of the film 1 is detected by the detector 22 (eye mark detection), and the control device 23 which has obtained the detection result controls the reciprocating device 24 and the infrared heating device 12 Infrared heating device 1 so that the irradiation destination of the infrared ray caused by the
Move 2 forward (following ramp). Then, when the infrared heating device 12 reaches the forward end, the control device 23 causes the infrared heating device 12 to move back to the original position (lamp return) and wait at the original position (waiting for an eye mark).

【００３０】(4) フィルム１の加熱された一定幅のシー
ル部２を圧着ロール１５により加圧してヒートシールす
る。その後、フィルム１のヒートシールされた一定幅の
シール部２の中央部を切断し、各 1枚の袋を得る。(4) The heated sealing portion 2 of the film 1 having a fixed width is pressurized by the pressure roll 15 and heat-sealed. Thereafter, the central portion of the heat-sealed fixed width seal portion 2 of the film 1 is cut to obtain one bag each.

【００３１】従って、本実施形態によれば下記〜の
作用がある。 赤外線加熱装置１２は、熱源（赤外線ランプ）から赤
外線を直接的にフィルム１に照射するものであるため、
設備を簡素化、小型化できる。Therefore, according to the present embodiment, the following effects are obtained. The infrared heating device 12 irradiates the film 1 with infrared rays directly from a heat source (infrared lamp).
Equipment can be simplified and downsized.

【００３２】赤外線加熱装置１２は、赤外線を直接的
にフィルム１に照射して加熱するため、加熱効率が良
い。また、赤外線は特定部分（一定幅のシール部２）に
集中させ易いから、発生した赤外線を効率良く照射でき
る。Since the infrared heating device 12 heats the film 1 by directly irradiating the film 1 with infrared light, the heating efficiency is high. Further, since the infrared rays are easily concentrated on a specific portion (the seal portion 2 having a constant width), the generated infrared rays can be efficiently irradiated.

【００３３】赤外線加熱装置１２は、赤外線の特性に
より、フィルム１の表面と内部を同時に加熱できる。従
って、シールに関係するフィルム内部を短時間で適温に
加熱できる。これにより、ヒートシール時間を短縮化
し、製袋の高速化を図ることができる。The infrared heating device 12 can simultaneously heat the surface and the inside of the film 1 due to the characteristics of infrared rays. Therefore, the inside of the film related to the seal can be heated to an appropriate temperature in a short time. Thereby, the heat sealing time can be shortened, and the speed of bag making can be increased.

【００３４】フィルム１の一定幅のシール部２を赤外
線加熱する赤外線加熱装置１２の前段に、該フィルム１
を予備的に赤外線加熱する予備加熱装置１１を設けた。
このフィルム１の予熱により、２つ折りフィルムの温度
を全体的に均一化するとともに、赤外線加熱装置１２に
よる一定幅のシール部２の加熱時間をより短縮可能とし
てヒートシール時間の短縮を図り、結果として製袋のよ
り高速化を実現できる。Before the infrared heating device 12 for infrared heating the seal portion 2 having a fixed width of the film 1, the film 1
Was provided with a preliminary heating device 11 for preliminary infrared heating.
By preheating the film 1, the temperature of the two-fold film is made uniform as a whole, and the heating time of the sealing portion 2 having a fixed width by the infrared heating device 12 can be further reduced, thereby shortening the heat sealing time. Faster bag making can be realized.

【００３５】赤外線加熱装置１２による赤外線の照射
が、連続的に送給されるフィルムの一定幅のシール部２
に追従するようになされるので、加熱効率を向上させな
がら、製袋のより高速化を実現できる。Irradiation of infrared rays by the infrared heating device 12 causes the sealing portion 2 having a constant width of the film to be continuously fed.
Therefore, the speed of bag making can be increased while improving the heating efficiency.

【００３６】尚、本発明は以下の変形態様を採用でき
る。 (A) フィルム１の一定幅のシール部２のヒートシール部
分を、他の部分より赤外線加熱され易い濃色部分とした
フィルムを用いること。The present invention can adopt the following modifications. (A) A film in which the heat-sealed portion of the fixed-width seal portion 2 of the film 1 is a dark-colored portion that is more easily heated by infrared rays than other portions.

【００３７】(B) フィルム１の送給ラインの一方側（フ
ィルム１の正面側）にのみ予備加熱装置１１もしくは赤
外線加熱装置１２を配置するのでなく、両方側（フィル
ム１の正面側と背面側）に予備加熱装置１１、１１もし
くは赤外線加熱装置１２、１２を配置すること。(B) The pre-heating device 11 or the infrared heating device 12 is not disposed only on one side (the front side of the film 1) of the film 1 feeding line, but on both sides (the front side and the back side of the film 1). ), The preliminary heating devices 11 and 11 or the infrared heating devices 12 and 12 are arranged.

【００３８】(C) フィルム１の送給ラインの一方側（フ
ィルム１の正面側）に予備加熱装置１１もしくは赤外線
装置１２を配置し、他方側（フィルム１の背面側）に凹
面鏡（図２の３０）を配置すること。(C) A preheating device 11 or an infrared device 12 is arranged on one side (the front side of the film 1) of the film 1 feeding line, and a concave mirror (see FIG. 2) is arranged on the other side (the back side of the film 1). 30).

【００３９】(D) 赤外線加熱装置１２がフィルム１に及
ぼす加熱時間の制御方法として、赤外線加熱装置１２の
照射方向前面にシャッタ装置を設けること。(D) As a method of controlling the heating time exerted on the film 1 by the infrared heating device 12, a shutter device is provided on the front surface of the infrared heating device 12 in the irradiation direction.

【００４０】(E) フィルム１の特定形状を加熱してヒー
トシールするため、赤外線加熱装置１２の照射方向前面
に特定形状のスリットを備えた透過板を設けること。(E) In order to heat and heat seal a specific shape of the film 1, a transmission plate having a slit of a specific shape is provided on the front surface in the irradiation direction of the infrared heating device 12.

【００４１】(F) フィルム１の特定形状を加熱してヒー
トシールするため、赤外線加熱装置１２の赤外線ランプ
１２Ａとして異形ランプを用いること。(F) In order to heat and heat seal a specific shape of the film 1, a modified lamp is used as the infrared lamp 12A of the infrared heating device 12.

【００４２】以上、本発明の実施の形態を図面により詳
述したが、本発明の具体的な構成はこの実施の形態に限
られるものではなく、本発明の要旨を逸脱しない範囲の
設計の変更等があっても本発明に含まれる。The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration of the present invention is not limited to this embodiment, and the design may be changed without departing from the scope of the present invention. The present invention is also included in the present invention.

【００４３】[0043]

【発明の効果】以上のように本発明よれば、設備の簡素
小型化を図るとともに、ヒートシールの加熱効率の向上
とシール時間の短縮を実現し、製袋の高速化を図ること
ができる。As described above, according to the present invention, the equipment can be simplified and miniaturized, the heating efficiency of the heat seal can be improved, the sealing time can be shortened, and the speed of bag making can be increased.

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

【図１】図１は製袋装置の全体を示す模式図である。FIG. 1 is a schematic view showing the entire bag making apparatus.

【図２】図２は製袋装置の詳細を示す模式図である。FIG. 2 is a schematic diagram showing details of a bag making apparatus.

【図３】図３は赤外線加熱装置の制御系統を示す模式図
である。FIG. 3 is a schematic diagram showing a control system of the infrared heating device.

【図４】図４は赤外線加熱装置の制御フローを示す模式
図である。FIG. 4 is a schematic diagram showing a control flow of the infrared heating device.

【図５】図５はフィルムの加熱制御パターンを示す模式
図である。FIG. 5 is a schematic diagram showing a heating control pattern of a film.

【図６】図６は赤外線加熱装置の電力制御パターンと追
従制御パターンを示す模式図である。FIG. 6 is a schematic diagram showing a power control pattern and a follow-up control pattern of the infrared heating device.

【図７】図７は赤外線加熱装置の一例を示す模式図であ
る。FIG. 7 is a schematic diagram illustrating an example of an infrared heating device.

【図８】図８は赤外線ランプの波長と放射エネルギーの
関係を示す模式図である。FIG. 8 is a schematic diagram showing a relationship between a wavelength of an infrared lamp and radiant energy.

【符号の説明】[Explanation of symbols]

１ フィルム ２ 一定幅のシール部 １０ 製袋装置 １１ 予備加熱装置 １２ 赤外線加熱装置 １５ 圧着ロール ２１ 追従装置 ２２ 検出器 ２３ 制御装置 ２４ 往復動装置 DESCRIPTION OF SYMBOLS 1 Film 2 Seal part of fixed width 10 Bag-making apparatus 11 Preheating apparatus 12 Infrared heating apparatus 15 Crimping roll 21 Following apparatus 22 Detector 23 Control apparatus 24 Reciprocating apparatus

───────────────────────────────────────────────────── フロントページの続き (72)発明者 上塩入 伸之 栃木県芳賀郡市貝町赤羽2606 花王株式会 社研究所内 (72)発明者 鈴木 雅晶 東京都墨田区文花２−１−３ 花王株式会 社研究所内 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Nobuyuki Kamioiri 2606 Akabane, Kaga-cho, Haga-gun, Tochigi Pref. Kao Co., Ltd. (72) Inventor Masaaki Suzuki 2-1-3 Bunka, Sumida-ku, Tokyo Kao Co., Ltd. Inside the company laboratory

Claims (6)

【特許請求の範囲】[Claims] 【請求項１】 帯状熱可塑性フィルムを２つ折りに成形
し、該２つ折りフィルムの流れと直角方向に、一定の幅
でヒートシールする製袋方法において、 一定幅のシール部を赤外線加熱してヒートシールするこ
とを特徴とする製袋方法。In a bag making method, a belt-shaped thermoplastic film is formed into two folds and heat-sealed at a certain width in a direction perpendicular to the flow of the two-fold film. A bag making method characterized by sealing. 【請求項２】 前記２つ折りフィルムの一定幅のシール
部を赤外線加熱する前工程で、該２つ折りフィルムを予
備的に赤外線加熱する請求項１記載の製袋方法。2. The bag making method according to claim 1, wherein the preliminarily heating of the two-folded film by infrared rays is performed before the infrared ray is heated in the seal portion having a fixed width of the two-folded film. 【請求項３】 前記２つ折りフィルムを連続的に送給す
る過程で、前記赤外線の照射先を該２つ折りフィルムの
一定幅のシール部の移動に追従制御せしめる請求項１又
は２記載の製袋方法。3. The bag-making apparatus according to claim 1, wherein, in the process of continuously feeding the two-fold film, the irradiation destination of the infrared rays is controlled to follow the movement of a seal portion having a constant width of the two-fold film. Method. 【請求項４】 帯状熱可塑性フィルムを２つ折りに成形
し、該２つ折りフィルムの流れと直角方向に、一定の幅
で加熱装置により加熱してヒートシールする製袋装置に
おいて、 前記加熱装置が赤外線加熱装置であることを特徴とする
製袋装置。4. A bag making apparatus in which a belt-shaped thermoplastic film is formed into two folds, and is heat-sealed by heating with a certain width in a direction perpendicular to the flow of the two-fold film, wherein the heating device is an infrared ray. A bag making device characterized by being a heating device. 【請求項５】 前記赤外線加熱装置の前段に、前記２つ
折りフィルムを予備的に赤外線加熱する予備加熱装置を
設けてなる請求項４記載の製袋装置。5. The bag-making apparatus according to claim 4, further comprising a preliminary heating device that preliminarily heats the two-folded film by infrared rays, in a stage preceding the infrared heating device. 【請求項６】 前記２つ折りフィルムを連続的に送給す
るフィルム送給装置と、 該２つ折りフィルムの一定幅のシール部が前記赤外線加
熱装置による加熱領域を通過するタイミングを検出する
検出器と、 検出器の検出結果を得て、該赤外線加熱装置による赤外
線の照射先を該２つ折りフィルムの一定幅のシール部の
移動に追従制御せしめる制御装置とを有してなる請求項
４又は５記載の製袋装置。6. A film feeding device for continuously feeding the folded film, and a detector for detecting a timing at which a sealing portion having a fixed width of the folded film passes through a heating area by the infrared heating device. 6. A control device which obtains a detection result of the detector and controls the irradiation destination of the infrared rays by the infrared heating device to follow the movement of the fixed width sealing portion of the two-fold film. Bag making equipment.
JP8210484A 1996-07-23 1996-07-23 Method and device for making bag Withdrawn JPH1035621A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8210484A JPH1035621A (en) 1996-07-23 1996-07-23 Method and device for making bag

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8210484A JPH1035621A (en) 1996-07-23 1996-07-23 Method and device for making bag

Publications (1)

Publication Number Publication Date
JPH1035621A true JPH1035621A (en) 1998-02-10

Family

ID=16590118

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8210484A Withdrawn JPH1035621A (en) 1996-07-23 1996-07-23 Method and device for making bag

Country Status (1)

Country Link
JP (1) JPH1035621A (en)

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WO2001043949A1 (en) * 1999-12-17 2001-06-21 Lemo Maschinenbau Gmbh Device for fabricating moving widths of plastic film
JP2001310399A (en) * 2000-04-28 2001-11-06 Totani Corp Bag making machine
EP1894703A1 (en) * 2006-08-28 2008-03-05 Curt G. Joa, Inc. Bonding method for continuous traveling web
JP2010538862A (en) * 2007-09-10 2010-12-16 スターリンガー ウント コムパニー ゲゼルシャフト ミット ベシュレンクテル ハフツング Coated fabric made of uniaxially stretched plastic tape and bag made from the fabric
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Effective date: 20031007