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DE102009049834A1 - Device for welding plastic film for machine for making e.g. bag, in film sealing system, has reciprocating sealing bar formed of multiple heated heating segments whose heating power is individually adjustable - Google Patents

Device for welding plastic film for machine for making e.g. bag, in film sealing system, has reciprocating sealing bar formed of multiple heated heating segments whose heating power is individually adjustable Download PDF

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Publication number
DE102009049834A1
DE102009049834A1 DE102009049834A DE102009049834A DE102009049834A1 DE 102009049834 A1 DE102009049834 A1 DE 102009049834A1 DE 102009049834 A DE102009049834 A DE 102009049834A DE 102009049834 A DE102009049834 A DE 102009049834A DE 102009049834 A1 DE102009049834 A1 DE 102009049834A1
Authority
DE
Germany
Prior art keywords
welding
heating
bag
plastic film
heating segments
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.)
Ceased
Application number
DE102009049834A
Other languages
German (de)
Inventor
Hartmut Odenthal
Lothar Ophey
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.)
Lemo Maschinenbau GmbH
Original Assignee
Lemo Maschinenbau GmbH
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 Lemo Maschinenbau GmbH filed Critical Lemo Maschinenbau GmbH
Priority to DE102009049834A priority Critical patent/DE102009049834A1/en
Publication of DE102009049834A1 publication Critical patent/DE102009049834A1/en
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—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
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
    • B29C65/30—Electrical means
    • B29C65/305—Electrical means involving the use of cartridge heaters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/743—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/006—Preventing damaging, e.g. of the parts to be joined
    • B29C66/0062—Preventing damaging, e.g. of the parts to be joined of the joining tool, e.g. avoiding wear 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/346—Making joints having variable thicknesses in the joint area, e.g. by using jaws having an adapted configuration
    • B29C66/3462—Making joints having variable thicknesses in the joint area, e.g. by using jaws having an adapted configuration by differentially heating the zones of different thickness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/347—General aspects dealing with the joint area or with the area to be joined using particular temperature distributions or gradients; using particular heat distributions or gradients
    • B29C66/3472—General aspects dealing with the joint area or with the area to be joined using particular temperature distributions or gradients; using particular heat distributions or gradients in the plane of the joint, e.g. along the joint line in the plane of the joint or perpendicular to the joint line in the plane of the joint
    • 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
    • B29C66/735—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 extensive physical properties of the parts to be joined
    • B29C66/7352—Thickness, e.g. very thin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81427—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/841—Machines or tools adaptable for making articles of different dimensions or shapes or for making joints of different dimensions
    • B29C66/8412—Machines or tools adaptable for making articles of different dimensions or shapes or for making joints of different dimensions of different length, width or height
    • 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
    • B29C66/91—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
    • B29C66/91423—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 using joining tools having different temperature zones or using several joining tools with different temperatures
    • 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
    • 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
    • B29C66/91651—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 by controlling or regulating the heat generated by Joule heating or induction heating
    • 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
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2155/00—Flexible containers made from webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2155/00—Flexible containers made from webs
    • B31B2155/001—Flexible containers made from webs by folding webs longitudinally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00—Shape of flexible containers
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/60—Uniting opposed surfaces or edges; Taping
    • B31B70/64—Uniting opposed surfaces or edges; Taping by applying heat or pressure

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Making Paper Articles (AREA)

Abstract

The device has a reciprocating sealing bar (1) formed of multiple heated heating segments (2a-2d) whose heating power is individually adjustable. The sealing bar is designed for separating welding. The heating segments have different lengths (L). Thermal sensors (4a-4d) regulate the heating power in the heating segments. The heating segments include electrically heated heating elements (8a-8d). Temperature in the heating segments is measured by using the thermal sensor and a controller (11). A welding roller is made of silicon i.e. Teflon(RTM: PTFE).

Description

Die Erfindung betrifft eine Vorrichtung zum Verschweißen von Kunststofffolien für eine Maschine zur Herstellung von Beuteln, Säcken oder dergleichen, mit mindestens einem hin- und herbeweglichen Schweißbalken.The invention relates to a device for welding plastic films for a machine for producing bags, sacks or the like, with at least one reciprocating welding bar.

Bekannt ist aus der DE 101 51 576 A1 ein beheizter Schweißbalken und eine Schweißwalze, zwischen denen die Kunststofffolie zum Verschweißen durchgeführt wird.Is known from the DE 101 51 576 A1 a heated welding bar and a welding roller, between which the plastic film for welding is carried out.

Aus der DE 199 10 598 A1 ist bekannt, dass es bei einer schmaleren Kunsttofffolienbahn als die Länge des Schweißbalkens zu relativ schnellem Verschleiß an den Bereichen des Schweißbalkens, der nicht die Kunststofffolien berührt, kommen kann.From the DE 199 10 598 A1 It is known that with a narrower plastic film web than the length of the weld bar, relatively rapid wear can occur at the areas of the weld bar which does not touch the plastic films.

In der DE 1 242 353 wird beschrieben, dass bei wechselnden Lagenzahlen sich auch wechselnde Wärmemengen für die Verschlussgeräte ergeben. Somit kann jeweils nur eine bestimmte Wärmemenge, die für eine bestimmte Lagenzahl geeignet ist, für ein Verschlussgerät eingestellt werden.In the DE 1 242 353 It is described that with changing number of layers also changing amounts of heat for the sealing devices result. Thus, in each case only a certain amount of heat, which is suitable for a certain number of layers, can be set for a closure device.

Bei Beutelherstellungsmaschinen ergibt sich die Länge der Schweißnaht für einen Schweißbalken aus dem verwendeten Format der Kunststofffolien, das je nach herzustellendem Beuteltyp unterschiedlich ist. Eine Überhitzung des Schweißbalkens an den Stellen, an denen keine Kunststofffolie den Schweißbalken berührt, kann zur Beschädigungen am Schweißbalken führen.In bag making machines, the length of the weld for a welding bar is determined by the format of the plastic films used, which varies depending on the type of bag to be made. Overheating of the welding bar in places where no plastic foil touches the welding bar can damage the welding bar.

Die zu verschweißende Dicke wechselt mit dem herzustellenden Beuteltyp, da die Kunststofffolienlagen je nach herzustellendem Typ mit unterschiedlichen Lagen in verschiedenen Bereichen des Beutels, bespielweise zweilagig in Beutelmitte und vierlagig am Beutelboden und/oder an der Beutelöffnung, vorkommen können. Bei einem beheizten Schweißbalken besteht die Gefahr einer Überhitzung von Bereichen, in denen weniger Lagen von übereinanderliegenden Kunststofffolien vorkommen. Die Folge sind Schweißfehler in diesen Bereichen der Beutel. Ist ein Schweißbalken für eine Verschweißung in Bereichen der Beutel, in denen mehrere Kunststofffolienlagen vorkommen, nicht genug beheizt, können ebenfalls Schweißfehler in diesen Bereichen der Beutel auftreten.The thickness to be welded changes with the type of bag to be produced, since the plastic film layers depending on the type to be produced with different layers in different areas of the bag, recordable two-ply in the bag center and four-ply on the bottom of the bag and / or at the bag opening occur. With a heated welding bar, there is a risk of overheating of areas in which there are fewer layers of superimposed plastic films. The result is welding defects in these areas of the bag. If a welding bar is not heated enough for welding in areas of the bags in which several plastic film layers occur, welding defects can also occur in these areas of the bags.

Aufgabe der Erfindung ist es daher, eine Vorrichtung der eingangs beschriebenen Art zu schaffen, die mit minimalen konstruktiven Aufwand einen Schweißbalken realisiert, der auf die verschiedenen Schweißlängen und -dicken der zu verscheißenden Kunststofffolien einfach und schnell angepasst werden kann.The object of the invention is therefore to provide a device of the type described above, which realizes a welding bar with minimal design effort, which can be easily and quickly adapted to the different welding lengths and thicknesses of the plastic films to be taped.

Die Aufgabe wird nach der Erfindung dadurch gelöst, dass der Schweißbalken aus mehreren, beheizbaren Heizsegmenten aufgebaut ist, deren Heizleistung jeweils individuell einstellbar ist.The object is achieved according to the invention in that the sealing bar is constructed of a plurality of heatable heating segments whose heating power is individually adjustable.

Die zum Verschweißen von Kunststofffolien notwendige Heizleistung variiert mit dem verwendeten Beuteltyp, da die im Schweißbereich auftretende Anzahl an Kunststofffolien variiert. Mit ansteigender Anzahl an zu verschweißenden Kunststofffolien steigt auch die zu verschweißende Foliendicke an. Mit Hilfe der Erfindung können die Heizsegmente des Schweißbalkens, die eine geringere Heizleistung zum Verschweißen benötigen, auf eine niedrigere Temperatur individuell eingestellt werden. Im Gegensatz dazu können die Heizsegmente im Schweißbalken, die eine größere Heizleistung zum Verschweißen erzeugen müssen, auf eine höhere Temperatur individuell eingestellt werden. Mit der Erfindung ist es also möglich, jede notwendige Wärmemenge für die Verschweißung durch die individuell einstellbare Heizleistung in einem Heizsegment des Schweißbalkens einzustellen. Falls die Beutelformate kleiner als die Länge des Schweißbalkens sind, besteht die Möglichkeit einzelne nicht zur Verschweißung notwendige Heizsegmente nicht zu beheizen. Die einzelnen Heizsegmente des Schweißbalkens können auch jeweils auf eine gleiche Heizleistung eingestellt werden, wenn die Anzahl der Kunststofffolien im Schweißbereich nicht variiert.The heating power necessary for welding plastic films varies with the bag type used, since the number of plastic films occurring in the welding area varies. As the number of plastic films to be welded increases, the film thickness to be welded increases. With the aid of the invention, the heating segments of the welding bar, which require a lower heating power for welding, can be adjusted individually to a lower temperature. In contrast, the heating segments in the welding bar, which have to generate a larger heating power for welding, can be set individually to a higher temperature. With the invention it is thus possible to set any necessary amount of heat for the welding by the individually adjustable heating power in a heating segment of the welding bar. If the bag formats are smaller than the length of the welding bar, it is possible not to heat individual heating segments not required for welding. The individual heating segments of the welding bar can each also be set to the same heating power if the number of plastic films in the welding area does not vary.

Durch die Verwendung von mehreren, beheizbaren Heizsegmenten im Schweißbalken, die individuell einstellbar sind, ergeben sich weitere Vorteile beim Verschweißen von Kunststofffolien:
Die Schweißnahtqualität kann durch den temperaturangepassten Schweißprozess nachhaltig verbessert werden, da die beiheizten Heizsegmente auf die richtige Heizleistung für das Verschweißen eingestellt sind. Eine Überhitzung der nicht zum Verschweißen verwendeten Bereiche des Schweißbalkens kann durch nicht beheizte Heizsegmente ausgeschlossen werden.The use of several heatable heating segments in the welding bar, which are individually adjustable, offers further advantages when welding plastic films:
The weld quality can be sustainably improved by the temperature-adapted welding process, as the heated heating segments are set to the correct heating power for welding. Overheating of the non-welding areas of the welding bar can be excluded by unheated heating segments.

Zusätzlich werden die Betriebskosten durch die individuell regelbaren Heizleistungen in den Heizsegmenten reduziert, da jeweils angepasste Temperaturprofile verwendet werden. Auf eine zusätzliche Schweißeinrichtung kann verzichtet werden, da eine für die mehrlagigen Kunststofffolienbereiche angepasste Heizleistung mit Hilfe der individuell einstellbaren Heizsegmente, wie vorstehend beschrieben, eingestellt werden kann.In addition, the operating costs are reduced by the individually controllable heat outputs in the heating segments, since in each case adapted temperature profiles are used. An additional welding device can be dispensed with, since a heating power adapted for the multilayered plastic film regions can be adjusted with the aid of the individually adjustable heating segments, as described above.

Zur thermischen Regelung der Heizleistung der Heizsegmente werden bevorzugt Thermofühler verwendet, die in Heizsegmenten mit elektrisch beheizten Heizelementen angeordnet sind.For thermal control of the heating power of the heating segments thermocouples are preferably used, which are arranged in heating segments with electrically heated heating elements.

Die einzelnen Heizsegmente sind im Schweißbalken bevorzugt über dessen Länge aufeinander folgend angeordnet. Die Länge der einzelnen Heizsegmente im Schweißbalken kann unterschiedlich sein. The individual heating segments are arranged successively in the welding bar over the length thereof. The length of the individual heating segments in the welding bar can be different.

In den beiden Zeichnungen ist eine bevorzugte Ausführungsform der Erfindung näher erläutert. Es zeigt:In the two drawings, a preferred embodiment of the invention is explained in more detail. It shows:

1 die Seitenansicht von individuell elektrisch einstellbaren beheizbaren Heizsegmenten in einem Schweißbalken, einen Regler und Kunststofffolie. 1 the side view of individually electrically adjustable heatable heating segments in a welding bar, a regulator and plastic film.

2 Schweißbalken und Kunststofffolie im Schnitt A-A. 2 Welding bar and plastic film in section AA.

Für eine Beutelherstellung mit Seitennaht wird eine zum Halbschlauch gefaltete Kunststofffolie 3 in einer Folienschweißanlage mit einer Vorschubbewegung a waagerecht und senkrecht zum Schweißbalken 1 wie in 2 dargestellt bewegt. Der zu verschweißende Beuteltyp besitzt wie in 1 dargestellt an der Beutelbodenseite im Beispiel vier Lagen Kunststofffolie und an den anderen Stellen im Beispiel nur zwei Lagen Kunststofffolie.For side-seam bag making, a plastic film folded into a half-tube is used 3 in a film welding machine with a feed motion a horizontally and vertically to the welding bar 1 as in 2 shown moves. The bag type to be welded has as in 1 shown on the bag bottom side in the example four layers of plastic film and in the other places in the example only two layers of plastic film.

Der verwendete Schweißbalken 1 ist wie in 2 dargestellt im Beispiel aus zwei Teilen aufgebaut, nämlich einer Schweißbalkenoberseite 5 und einer Schweißbalkenunterseite 6. Beide können beispielsweise miteinander verschraubt sein. Der Schweißbalken besteht aus Metall, vorzugsweise aus Stahl. In der oberen und der unteren Schweißbalkenseite existiert eine Aussparung 7, im Beispiel eine durchgängige runde Bohrung. In der Aussparung 7 sind vorzugsweise drei bis acht Heizelemente, im Beispiel vier Heizelemente 8a, 8b, 8c, 8d, über die Längsrichtung L des Schweißbalkens 1 wie in 1 dargestellt direkt aufeinander folgend angeordnet. Als Heizelemente 8a, 8b, 8c, 8d sind vorzugsweise Rohrheizkörper mit Wendel oder Heizpatronen geeignet. Die Länge L1, L2, L3, L4 der einzelnen Heizelemente 8a, 8b, 8c, 8d ist frei wählbar. Die Länge L1, L2, L3, L4 der einzelnen Heizelemente 8a, 8b, 8c, 8d ist vorzugsweise 100 mm.The welding bar used 1 is like in 2 illustrated in the example of two parts, namely a Schweißbalkenoberseite 5 and a welding bar base 6 , Both can be bolted together, for example. The welding bar is made of metal, preferably steel. There is a recess in the upper and lower sides of the welding bar 7 , in the example a continuous round bore. In the recess 7 are preferably three to eight heating elements, in the example four heating elements 8a . 8b . 8c . 8d , over the longitudinal direction L of the welding bar 1 as in 1 represented arranged directly following one another. As heating elements 8a . 8b . 8c . 8d are preferably tubular heaters with helical or cartridge heaters suitable. The length L1, L2, L3, L4 of the individual heating elements 8a . 8b . 8c . 8d is freely selectable. The length L1, L2, L3, L4 of the individual heating elements 8a . 8b . 8c . 8d is preferably 100 mm.

Die Heizelemente 8a, 8b, 8c, 8d sind einzeln, vorzugsweise elektrisch, beheizbar. Im Beispiel sind die Heizelemente über elektrische Kabel 9a, 9b, 9c, 9d mit Stromanschlüssen 10a, 10b, 10c, 10d verbunden, um die einzelnen Heizelemente auf eine lagenangepasste Temperatur individuell zu erwärmen. Die an den Enden des Schweißbalkens 1 liegenden zwei Heizelemente 8a, 8d führen ihre elektrischen Kabel 9a, 9d und Stromanschlüsse 10a, 10d seitlich in Längsrichtung L aus dem Schweißbalken 1. Die beiden anderen Heizelemente 8b, 8c führen ihre elektrischen Kabel 9b, 9c und Stromanschlüsse 10b, 10c über die Schweißbalkenoberseite 5 ab. Die Länge der verwendeten Heizelemente 8a, 8b, 8c, 8d ergibt die Abmessung der nutzbaren Heizsegmente 2a, 2b, 2c, 2d im Schweißbalken 1 für eine Verschweißung.The heating elements 8a . 8b . 8c . 8d are individually, preferably electrically, heated. In the example, the heating elements are via electrical cables 9a . 9b . 9c . 9d with power connections 10a . 10b . 10c . 10d connected to individually heat the individual heating elements to a set temperature. The at the ends of the welding bar 1 lying two heating elements 8a . 8d carry their electrical cables 9a . 9d and power connections 10a . 10d laterally in the longitudinal direction L from the welding bar 1 , The other two heating elements 8b . 8c carry their electrical cables 9b . 9c and power connections 10b . 10c over the welding bar top 5 from. The length of the heating elements used 8a . 8b . 8c . 8d gives the dimension of the usable heating segments 2a . 2 B . 2c . 2d in the welding bar 1 for a weld.

Die Temperatur in den einzelnen Heizsegmenten 2a, 2b, 2c, 2d wird mit Hilfe von Thermofühlern, im Beispiel vier Thermofühlern 4a, 4b, 4c, 4d, gemessen, die im Beispiel jeweils mittig über einem Heizelement 8a, 8b, 8c, 8d in der Schweißbalkenoberseite 5 angeordnet sind. Mit Hilfe eines Reglers 11 für jedes Heizelement 8a, 8b, 8c, 8d wird die von dem jeweiligen Thermofühler 4a, 4b, 4c, 4d gemessene Temperatur auf die für eine Verschweißung notwendige Temperatur in dem jeweiligen Heizsegment 2a, 2b, 2c, 2d individuell eingestellt. Dadurch ergibt sich in jedem Heizsegment 2a, 2b, 2c, 2d eine zur Verschweißung notwendige Temperatur, die Schweißfehler an der Kunststofffolie 3 oder eine Überhitzung von dem Schweißbalken 1 verhindert.The temperature in the individual heating segments 2a . 2 B . 2c . 2d is done with the help of thermocouples, in the example four thermocouples 4a . 4b . 4c . 4d , measured in the example in the middle in each case above a heating element 8a . 8b . 8c . 8d in the weld bar top 5 are arranged. With the help of a regulator 11 for each heating element 8a . 8b . 8c . 8d becomes that of the respective temperature sensor 4a . 4b . 4c . 4d measured temperature to the temperature required for a weld in the respective heating segment 2a . 2 B . 2c . 2d individually adjusted. This results in each heating segment 2a . 2 B . 2c . 2d a temperature necessary for welding, the welding defects on the plastic film 3 or overheating of the welding bar 1 prevented.

Im Beispiel ist der Schweißbalken 1 zum Trennschweißen gestaltet. Beim Trennschweißen werden die Lagen der Kunststofffolie 3 neben dem Verschweißen zusätzlich durchgetrennt, um sie in einzelne Beutel, Taschen etc. aufzuteilen.In the example is the welding bar 1 designed for separation welding. When separating, the layers of plastic film 3 in addition to the welding additionally cut to divide them into individual bags, bags, etc.

Für die Verschweißung des im Beispiel verwendeten Beuteltyps wird die Heizleistung des Heizelements 8c im Abschnitt L3 des Schweißbalkens 1 mit Hilfe des Thermofühlers 4c und des Reglers 11 auf die für eine Verschweißung von im Beispiel vier Kunststofffolienlagen notwendige Temperatur eingestellt und kontinuierlich mit Hilfe des Reglers 11 weiter geregelt. Die Heizleistung der beiden Heizelemente 8a, 8b im Abschnitt L1 und L2 des Schweißbalkens 1 wird mit Hilfe der Thermofühlers 4a, 4b und des Reglers 11 auf die für eine Verschweißung von zwei Kunststofffolienlagen notwendige Temperatur individuell eingestellt und kontinuierlich mit Hilfe des Reglers 11 weiter geregelt. Das Heizelement 8d am Rand wird durch den Regler 11 nicht beheizt, da sich keine Kunststofffolie 3 in dem Bereich 14 befindet.For the welding of the bag type used in the example, the heating power of the heating element 8c in section L3 of the welding bar 1 with the help of the thermosensor 4c and the regulator 11 set to the necessary for a welding of in the example four plastic film layers temperature and continuously using the regulator 11 further regulated. The heating power of the two heating elements 8a . 8b in section L1 and L2 of the welding bar 1 is using the thermocouple 4a . 4b and the regulator 11 set individually to the temperature required for welding two plastic film layers and continuously with the aid of the regulator 11 further regulated. The heating element 8d on the edge is by the regulator 11 not heated, as there is no plastic film 3 in that area 14 located.

Durch eine gesteuerte Vorschubbewegung a werden aufeinanderliegende Lagen Kunststofffolie 3 um eine Beutelbreite für die Beutelherstellung mit Seitennaht unter dem Schweißbalken 1 vorgeschoben. Der Schweißbalken 1 senkt sich bei stillstehender Folie gegen eine Schweißwalze aus Silizium, die vorzugsweise mit Teflon belegt ist, um den Hub s ab und verschweißt die verschiedenen Lagen der Kunststofffolie 3. Im Beispiel findet ein Trennschweißen statt, bei dem neben der Herstellung von Schweißnähten die Lagen zugleich durchtrennt werden, um einzelne Beutel zu erzeugen. Der Schweißbalken 1 wird nach der Verschweißung von der Kunststofffolie 3 um den Hub s wieder angehoben. Die Kunststofffolie 3 wird weiter unter dem Schweißbalken 1 vorgeschoben bis die Beutelbreite wieder erreicht ist. Die nächste Verschweißung zur Herstellung eines Beutels mit Seitennaht kann stattfinden.By a controlled feed movement a superposed layers of plastic film 3 one bag width for bag making with side seam under the welding bar 1 advanced. The welding bar 1 When the film is stationary, it is lowered by a welding roller made of silicon, which is preferably coated with Teflon, around the stroke s and welds the various layers of the plastic film 3 , In the example, a separation welding takes place, in which in addition to the production of welds, the layers are cut at the same time to produce individual bags. The welding bar 1 will after the welding of the plastic film 3 raised again by the stroke s. The plastic film 3 will continue under the welding bar 1 advanced until the bag width is reached again. The next weld to make a bag with side seam can take place.

ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION

Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Zitierte PatentliteraturCited patent literature

  • DE 10151576 A1 [0002] DE 10151576 A1 [0002]
  • DE 19910598 A1 [0003] DE 19910598 A1 [0003]
  • DE 1242353 [0004] DE 1242353 [0004]

Claims (7)

Vorrichtung zum Verschweißen von Kunststofffolien (3) für eine Maschine zur Herstellung von Beuteln, Säcken oder dergleichen, mit mindestens einem hin- und herbeweglichen Schweißbalken (1), dadurch gekennzeichnet, dass der Schweißbalken aus mehreren, beheizbaren Heizsegmenten (2a, 2b, 2c, 2d) aufgebaut ist, deren Heizleistung jeweils individuell einstellbar ist.Device for welding plastic films ( 3 ) for a machine for the production of bags, sacks or the like, with at least one reciprocating welding bar ( 1 ), characterized in that the welding bar consists of a plurality of heatable heating segments ( 2a . 2 B . 2c . 2d ) is constructed, the heating power is individually adjustable. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der Schweißbalken (1) zum Trennschweißen gestaltet ist.Apparatus according to claim 1, characterized in that the welding bar ( 1 ) is designed for separating welding. Vorrichtung nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, dass zur Regelung der Heizleistung in den Heizsegmenten (2a, 2b, 2c, 2d) Thermofühler (4a, 4b, 4c, 4d) verwendet werden.Device according to claims 1 and 2, characterized in that for controlling the heat output in the heating segments ( 2a . 2 B . 2c . 2d ) Temperature sensor ( 4a . 4b . 4c . 4d ) be used. Vorrichtung nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, dass die Heizsegmente (2a, 2b, 2c, 2d) im Schweißbalken (1) über dessen Länge aufeinander folgend angeordnet sind.Device according to claims 1 to 3, characterized in that the heating segments ( 2a . 2 B . 2c . 2d ) in the welding bar ( 1 ) are arranged consecutively over its length. Vorrichtung nach den Ansprüchen 1 bis 4, dadurch gekennzeichnet, dass die Heizsegmente jeweils eine unterschiedliche Länge L aufweisen.Device according to claims 1 to 4, characterized in that the heating segments each have a different length L. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Heizsegmente (2a, 2b, 2c, 2d) elektrisch beheizbare Heizelemente (8a, 8b, 8c, 8d) enthalten.Device according to one of claims 1 to 5, characterized in that the heating segments ( 2a . 2 B . 2c . 2d ) electrically heatable heating elements ( 8a . 8b . 8c . 8d ) contain. Vorrichtung zur Herstellung von Beuteln aus Kunststofffolie (3), dadurch gekennzeichnet, dass sie eine Schweißvorrichtung gemäß einer der Ansprüche 1 bis 6 aufweist.Device for producing plastic film bags ( 3 ), characterized in that it comprises a welding device according to one of claims 1 to 6.
DE102009049834A 2009-10-16 2009-10-16 Device for welding plastic film for machine for making e.g. bag, in film sealing system, has reciprocating sealing bar formed of multiple heated heating segments whose heating power is individually adjustable Ceased DE102009049834A1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013172989A1 (en) * 2012-05-14 2013-11-21 Sealed Air Corporation (Us) Thin sealing device for side sealing machine
CN107684490A (en) * 2016-08-04 2018-02-13 黄山富田精工制造有限公司 A kind of ultrasonic wave welding device
CN111531961A (en) * 2020-05-08 2020-08-14 福建恒安集团有限公司 Middle package bag heat-sealing device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1242353B (en) 1962-12-05 1967-06-15 Basf Ag Method and device for the production of welded bags from a film tube with side gussets made of thermoplastic material
DE19910598A1 (en) 1999-03-10 2000-09-14 Lemo Maschb Gmbh Transverse welding and cutting machine for producing bags, pouches or similar products in plastic film has a welding roll with a tubular carrier supporting additional rings
DE10151576A1 (en) 2001-10-23 2003-04-30 Lemo Maschb Gmbh Device for welding plastic films
EP1837161A1 (en) * 2006-03-24 2007-09-26 Nippon Consultants B.V. Sealing Device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1242353B (en) 1962-12-05 1967-06-15 Basf Ag Method and device for the production of welded bags from a film tube with side gussets made of thermoplastic material
DE19910598A1 (en) 1999-03-10 2000-09-14 Lemo Maschb Gmbh Transverse welding and cutting machine for producing bags, pouches or similar products in plastic film has a welding roll with a tubular carrier supporting additional rings
DE10151576A1 (en) 2001-10-23 2003-04-30 Lemo Maschb Gmbh Device for welding plastic films
EP1837161A1 (en) * 2006-03-24 2007-09-26 Nippon Consultants B.V. Sealing Device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013172989A1 (en) * 2012-05-14 2013-11-21 Sealed Air Corporation (Us) Thin sealing device for side sealing machine
CN107684490A (en) * 2016-08-04 2018-02-13 黄山富田精工制造有限公司 A kind of ultrasonic wave welding device
CN111531961A (en) * 2020-05-08 2020-08-14 福建恒安集团有限公司 Middle package bag heat-sealing device

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R002 Refusal decision in examination/registration proceedings
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Effective date: 20111025