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DE19603675A1 - Welded seams control method for packing container - Google Patents

Welded seams control method for packing container

Info

Publication number
DE19603675A1
DE19603675A1 DE1996103675 DE19603675A DE19603675A1 DE 19603675 A1 DE19603675 A1 DE 19603675A1 DE 1996103675 DE1996103675 DE 1996103675 DE 19603675 A DE19603675 A DE 19603675A DE 19603675 A1 DE19603675 A1 DE 19603675A1
Authority
DE
Germany
Prior art keywords
weld seams
control device
packaging
sensor
light source
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
DE1996103675
Other languages
German (de)
Inventor
Gerhard Haug
Bernhard Luetkemeyer
Klaus Dr Domke
Willi Stirnkorb
Wolfgang Diener
Robert Fesl
Ulrich Dr Bartsch
Manfred Rebmann
Andreas Mast
Manfred Feuchter
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to DE1996103675 priority Critical patent/DE19603675A1/en
Priority to JP1707297A priority patent/JPH09207921A/en
Priority to BR9700836A priority patent/BR9700836A/en
Priority to FR9701058A priority patent/FR2744422A1/en
Publication of DE19603675A1 publication Critical patent/DE19603675A1/en
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/745—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 a single unit having both a severing tool and a welding 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/82—Testing the joint
    • B29C65/8253—Testing the joint by the use of waves or particle radiation, e.g. visual examination, scanning electron microscopy, or X-rays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—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
    • B29C66/733—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 optical properties of the material of the parts to be joined, e.g. fluorescence, phosphorescence
    • B29C66/7336—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 optical properties of the material of the parts to be joined, e.g. fluorescence, phosphorescence at least one of the parts to be joined being opaque, transparent or translucent to visible light
    • B29C66/73365—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 optical properties of the material of the parts to be joined, e.g. fluorescence, phosphorescence at least one of the parts to be joined being opaque, transparent or translucent to visible light at least one of the parts to be joined being transparent or translucent to visible light
    • B29C66/73366—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 optical properties of the material of the parts to be joined, e.g. fluorescence, phosphorescence at least one of the parts to be joined being opaque, transparent or translucent to visible light at least one of the parts to be joined being transparent or translucent to visible light both parts to be joined being transparent or translucent to visible light
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81421—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
    • B29C66/81422—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being convex
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81427—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81431—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/90—Investigating the presence of flaws or contamination in a container or its contents
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
    • 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
    • B29C66/71—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 composition of the plastics material 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
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81415—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/87—Auxiliary operations or devices
    • B29C66/876—Maintenance or cleaning
    • B29C66/8762—Cleaning of the joining tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/9241—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power
    • 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
    • B31B70/006—Controlling; Regulating; Measuring; Safety measures
    • 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

Landscapes

  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pathology (AREA)
  • Toxicology (AREA)
  • Package Closures (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)

Abstract

The controlling method is carried out using packing material strips for packing containers (12) as tubular bags. The strips have respectively a transparent carrier layer and a coloured in sealing layer at least in the region of the welded seam. The control of the welding seams is carried out by a sensor (32) in a transillumination method. The welded seams in a control unit are conveyed passing continuously the optical sensor (32). At least one light source (33) and a control unit (30) having at least one optical sensor are provided. The sensor and the light source are arranged on different sides of the welded seam.

Description

Stand der TechnikState of the art

Die Erfindung geht aus von einem Verfahren zur Kontrolle von Schweißnähten von Verpackungsbehältern nach der Gattung des Anspruchs 1. Bei einem aus der DE 24 55 064 A1 bekannten Verfahren dieser Art werden die Schweißnähte von Beutelpackungen kontrolliert, indem entweder die Temperatur der Schweißnähte, oder der Siegeldruck bzw. die Heizleistung der Siegelbacken erfaßt und einer Steuereinrichtung zugeführt werden. Die Steuereinrichtung regelt aufgrund dieser Eingangssignale die Schweißparameter der Siegelbacken über einen Soll/Ist-Wert-Vergleich. Im Falle der Temperaturüberwachung der Schweißnähte muß die Überwachung infolge der Wärmeabstrahlung der Schweißnähte unmittelbar nach dem Schweißen erfolgen. Das bedeutet, daß die Überwachungseinrichtung in die Schweißeinrichtung integriert werden muß, was deren Aufbau aufwendig gestaltet. Kommt es zu einem Produktionsstopp oder einer Verlangsamung des Produktionsablaufes, ist die Überwachung der Schweißnahttemperatur durch die zeitliche Verzögerung und die damit verbundene erfolgte Wärmeabstrahlung der Schweißnähte unsicher. Weiterhin ist allein die Temperatur einer Schweißnaht kein hinreichendes Indiz für eine gute und insbesondere dichte Schweißnaht, da bspw. geringe Undichtheiten in der Schweißnaht mit einer Temperaturüberwachung nicht sicher erkannt werden können. Werden hingegen der Siegeldruck oder die Heizleistung der Siegelbacken überwacht, ist lediglich eine indirekte Kontrolle der Schweißqualität möglich. So äußert sich beispielsweise eine Verschmutzung der Siegelbacken und somit eine mangelhafte Qualität der Schweißnähte nicht zwangsläufig in einer Änderung des Siegeldruckes bzw. einer Änderung der Heizleistung der Siegelbacken.The invention is based on a method for controlling Welding seams of packaging containers according to the genus of Claim 1. In a known from DE 24 55 064 A1 Processes of this type are used in the welding seams of Bag packs controlled by either the temperature the weld seams, or the sealing pressure or the heating power of the sealing jaws and a control device be fed. The control device regulates on of these input signals the welding parameters of the sealing jaws via a target / actual value comparison. In case of Temperature monitoring of the welds must be monitored due to the heat radiation from the weld seams immediately done after welding. That means that Monitoring device integrated in the welding device must be what their structure is complex. It comes to a production stop or a slowdown of the Production process, is the monitoring of Weld temperature due to the time delay and the associated heat radiation of the Weld seams unsafe. Furthermore, the temperature alone a weld seam is not sufficient evidence of a good and  especially tight weld seam, for example, small Leaks in the weld with one Temperature monitoring cannot be reliably detected. However, if the sealing pressure or the heating power of the Monitoring the sealing jaws is only an indirect one Control of welding quality possible. So expresses itself for example, contamination of the sealing jaws and thus poor weld quality inevitably in a change in the seal pressure or one Change in the heat output of the sealing jaws.

Bei einem aus der EP 0 571 728 A1 bekannten Verfahren wird die Ausbildung des Boden- bzw. Kopfbereiches von Papiersäcken mittels einer optischen Überwachungseinrichtung überprüft. Die Überprüfung betrifft insbesondere die lagerichtige Position von Kanten oder Aufdrucken.In a method known from EP 0 571 728 A1 the formation of the bottom or head area of Paper bags using an optical monitoring device checked. The review concerns in particular the Correct position of edges or imprints.

Vorteile der ErfindungAdvantages of the invention

Das erfindungsgemäße Verfahren zur Kontrolle von Schweißnähten von Verpackungsbehältern mit den kennzeichnenden Merkmalen des Anspruchs 1 hat demgegenüber den Vorteil, daß die Schweißnähte selbst kontrolliert werden, und daß diese Kontrolle zeitlich und örtlich unabhängig von der Schweißeinrichtung erfolgen kann.The inventive method for the control of Welding of packaging containers with the characteristic features of claim 1 has in contrast the advantage that the welds themselves controlled and that this control in time and place can be done independently of the welding device.

Weitere Vorteile und vorteilhafte Weiterbildungen des erfindungsgemäßen Verfahrens ergeben sich aus den Unteransprüchen und der Beschreibung. Besonders vorteilhaft ist es, daß jeder Teilabschnitt der Schweißnaht kontrolliert wird, so daß auch geringe Undichtheiten der Schweißnaht sicher erkannt werden. Vorteilhaft ist weiterhin, daß die Kontrolle unabhängig von der Leistung bzw. der Produktionsgeschwindigkeit oder von Produktionsstopps der Schlauchbeutelmaschine ist. Durch eine entsprechende Einstellung der Steuereinrichtung kann erkannt werden, wenn die Qualität der Schweißnähte tendenziell schlechter wird, ohne daß die Schweißnähte bereits Undichtheiten aufweisen. Dadurch kann Ausschuß vermieden werden. Die Vorrichtung zum Durchführen des erfindungsgemäßen Verfahrens läßt sich durch Modifikation bekannter Verpackungsmaschinen einfach herstellen. Besonders vorteilhaft ist dabei die räumliche Trennung von Herstellung und Kontrolle der Verpackungsbehälter. Die Kontrolleinrichtung kommt mit wenigen Bauteilen aus, die berührungslos arbeiten, und somit keinem Verschleiß unterworfen sind.Further advantages and advantageous developments of the The inventive method result from the Subclaims and the description. Particularly advantageous it is that every section of the weld controls is, so that even small leaks in the weld be recognized safely. It is also advantageous that the Control regardless of performance or Production speed or of production stops of Flow pack machine is. By an appropriate  Setting of the control device can be recognized if the quality of the weld seams tends to deteriorate, without the weld seams already showing leaks. This can avoid rejects. The device for The method according to the invention can be carried out Modification of known packaging machines is easy produce. The spatial is particularly advantageous Separation of production and control of the Packaging container. The control device comes with few components that work without contact, and thus are not subject to wear.

Zeichnungdrawing

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird in der nachfolgenden Beschreibung näher erläutert. Es zeigenAn embodiment of the invention is in the drawing shown and is described in more detail in the following description explained. Show it

Fig. 1 einen vereinfachten Querschnitt durch eine Schweißeinrichtung, Fig. 2 eine schematische Draufsicht auf eine Verpackungsmaschine und Fig. 3 einen Querschnitt in der Ebene III-III der Fig. 2. Fig. 1 is a simplified cross section through a welding device, Fig. 2 is a schematic plan view of a packaging machine and Fig. 3 shows a cross section in the plane III-III of Fig. 2.

Beschreibung des AusführungsbeispielsDescription of the embodiment

Mittels einer Schlauchbeutelmaschine 10 werden auf bekannte Art und Weise aus einem siegelfähigen Packstoffband 11 Beutel 12 hergestellt. Das Packstoffband 11 weist eine durchsichtige, nichtschmelzende Trägerschicht 14 beispielsweise aus Polyester oder Polypropylen auf, die mit einer eingefärbten Siegelschicht 15 beschichtet ist. Die Siegelschicht 15 ist zumindest im Bereich der Schweißnähte, insbesondere im Bereich der Querschweißnähte 16 an der Innenseite der Beutel 12 angeordnet. Die Querschweißnähte 16 werden in der Schlauchbeutelmaschine 10 mittels einer Schweißeinrichtung 17 gebildet. A tubular bag machine 10 is used to produce bags 12 from a sealable packaging material strip 11 in a known manner. The packaging material tape 11 has a transparent, non-melting carrier layer 14, for example made of polyester or polypropylene, which is coated with a colored sealing layer 15 . The sealing layer 15 is arranged at least in the area of the weld seams, in particular in the area of the transverse weld seams 16, on the inside of the bag 12 . The transverse weld seams 16 are formed in the tubular bag machine 10 by means of a welding device 17 .

Die Schweißeinrichtung 17 hat beispielsweise ein Paar gegeneinander verfahrbare, beheizbare Siegelbacken 18, 19. Zumindest die eine Siegelbacke 18 hat zwei konkav ausgebildete Schweißkontaktflächen 21, 22 zur Erzielung einer hohen Flächenpressung im Bereich der Querschweißnähte 16. Zwischen den Schweißkontaktflächen 21, 22 ist eine Trenneinrichtung in Form eines Trennmessers 23 zum Abtrennen von Beuteln 12 angeordnet.The welding device 17 has, for example, a pair of heatable sealing jaws 18 , 19 which can be moved relative to one another. At least one sealing jaw 18 has two concave welding contact surfaces 21 , 22 in order to achieve a high surface pressure in the area of the transverse weld seams 16 . A separating device in the form of a separating knife 23 for separating bags 12 is arranged between the welding contact surfaces 21 , 22 .

Zum Bilden der Querschweißnähte 16 werden die beiden Siegelbacken 18, 19 bei aktivierter Heizung mit einem bestimmten Siegeldruck gegeneinander gefahren. Dadurch werden die Siegel schichten 15 des Packstoffbandes 11 durch Wärmeübertragung der Siegelbacken 18, 19 aktiviert, und stellen eine Verbindung zwischen den beiden Trägerschichten 14 her. Die so gebildeten Querschweißnähte 16 sind als durchgehende, dunkle Streifen erkennbar, deren Helligkeit von dem Siegeldruck der Siegelbacken 18, 19, sowie den verwendeten Materialien der Trägerschicht 14 bzw. Siegelschicht 15 abhängt. Insbesondere, wenn der Siegeldruck der Siegelbacken 18, 19 zu gering ist, oder die Schweißkontaktflächen 21, 22 verschmutzt sind, ist die Qualität der Querschweißnähte 16 nicht mehr gewährleistet, d. h. es können Undichtheiten in den Querschweißnähten 16 auftreten. In diesem Fall weisen die Querschweißnähte 16 eine andere Helligkeit auf bzw. sind diese zumindest teilweise unterbrochen.To form the transverse weld seams 16 , the two sealing jaws 18 , 19 are moved against one another with a specific sealing pressure when the heating is activated. As a result, the sealing layers 15 of the packaging material strip 11 are activated by heat transfer from the sealing jaws 18 , 19 , and establish a connection between the two carrier layers 14 . The transverse weld seams 16 formed in this way can be recognized as continuous, dark stripes, the brightness of which depends on the sealing pressure of the sealing jaws 18 , 19 and the materials used for the carrier layer 14 or sealing layer 15 . In particular, if the sealing pressure of the sealing jaws 18 , 19 is too low, or the welding contact surfaces 21 , 22 are contaminated, the quality of the transverse weld seams 16 can no longer be guaranteed, ie leaks in the transverse weld seams 16 can occur. In this case, the transverse weld seams 16 have a different brightness or are at least partially interrupted.

Um dies zu erkennen, werden die durch die Trenneinrichtung 23 vom Packstoffband 11 abgetrennten Beutel 12 über eine Fördereinrichtung beispielsweise in Form eines ersten Förderbandes 24 aus der Schlauchbeutelmaschine 10 ausgeschleust. Die Beutel 12 werden anschließend an ein rechtwinklig zum ersten Förderband 24 angeordnetes zweites Förderband 26 übergeben. Dadurch werden die Beutel 12 auf den Förderbändern 24, 26 in Bezug auf deren Förderrichtung um 90 Grad gedreht. Das bedeutet, daß sich die Querschweißnähte 16 in den Randbereichen 27, 28 des Förderbands 26 befinden.In order to recognize this, the bags 12 separated from the packaging material belt 11 by the separating device 23 are discharged from the tubular bag machine 10 via a conveyor device, for example in the form of a first conveyor belt 24 . The bags 12 are then transferred to a second conveyor belt 26 arranged at right angles to the first conveyor belt 24 . As a result, the bags 12 on the conveyor belts 24 , 26 are rotated by 90 degrees with respect to their conveying direction. This means that the transverse weld seams 16 are located in the edge regions 27 , 28 of the conveyor belt 26 .

Im Bereich des Förderbandes 26 ist eine Kontrolleinrichtung 30 angeordnet. Die Kontrolleinrichtung 30 umfaßt das Förderband 26 zumindest an deren Randbereichen 27, 28, wobei die Querschweißnähte 16 von einem oberhalb des Förderbandes 26 angeordneten Abdeckblech 31 abgedeckt wird. In dem Abdeckblech 31 sind oberhalb der Querschweißnähte 16 Lichtsensoren 32 angeordnet. Bevorzugt ist jeder Querschweißnaht 16 ein separater Lichtsensor 32 zugeordnet, der sich senkrecht über der jeweiligen Querschweißnaht 16 befindet. Auf der der Lichtsensoren 32 gegenüberliegenden Seite der Querschweißnähte 16 ist jedem Lichtsensor 32 eine Lichtquelle 33 zugeordnet, die mittels eines Trägers 34 in der Kontrolleinrichtung 30 befestigt ist. Die Lichtquellen 33 befinden sich zwischen dem Förderband 26 und den Querschweißnähten 16, und zwar derart, daß die Lichtquellen 33 mit den Lichtsensoren 32 fluchtend ausgerichtet sind.A control device 30 is arranged in the region of the conveyor belt 26 . The control device 30 comprises the conveyor belt 26 at least at its edge regions 27 , 28 , the transverse weld seams 16 being covered by a cover plate 31 arranged above the conveyor belt 26 . 16 light sensors 32 are arranged in the cover plate 31 above the cross weld seams. Each cross weld 16 is preferably assigned a separate light sensor 32 , which is located vertically above the respective cross weld 16 . On the side of the transverse weld seams 16 opposite the light sensors 32 , each light sensor 32 is assigned a light source 33 which is fastened in the control device 30 by means of a carrier 34 . The light sources 33 are located between the conveyor belt 26 and the transverse weld seams 16 , in such a way that the light sources 33 are aligned with the light sensors 32 .

Vorteilhafterweise ist die Kontrolleinrichtung 30 zumindest oberhalb des Förderbandes 26 als geschlossener Kasten ausgebildet, der lediglich Schlitze bzw. Durchbrüche für das Förderband 26 und die Beutel 12 aufweist.The control device 30 is advantageously designed at least above the conveyor belt 26 as a closed box which only has slots or openings for the conveyor belt 26 and the bags 12 .

Werden nun die Beutel 12 von dem Förderband 26 durch die Kontrolleinrichtung 30 gefördert, so wird die eine Seite der Querschweißnähte 16 von den Lichtquellen 33 beleuchtet und durchdringt die Querschweißnähte 16. Die auf der anderen Seite der Querschweißnähte 16 angeordneten Lichtsensoren 32 erfassen das von den Lichtquellen 33 herrührende Licht somit im sogenannten Durchlichtverfahren. Als Lichtsensoren 32 sind bspw. Videokameras oder Photozellen denkbar, die Helligkeitsunterschiede in elektrische Signale umwandeln. Das von den Lichtsensoren 32 gebildete Meßsignal wird der Steuereinrichtung der Schlauchbeutelmaschine 10 zugeführt. Die Steuereinrichtung macht einen Vergleich zwischen dem Meßsignal der Lichtsensoren 32 und in der Steuereinrichtung abgelegten Sollwerten. Ist die Qualität der Querschweißnähte 16 wie oben beschrieben nicht mehr gewährleistet, d. h. ändert sich deren Helligkeit, so führt die Differenz zwischen Soll- und Istwert der Lichtsensoren 32 zu einer entsprechenden Meldung der Steuereinrichtung. Diese Meldung kann bspw. zu einer Anzeige an einem Kontrollmonitor der Schlauchbeutelmaschine 10 oder zu deren Abschaltung führen.If the bags 12 are now conveyed by the conveyor belt 26 through the control device 30 , then one side of the cross weld seams 16 is illuminated by the light sources 33 and penetrates the cross weld seams 16 . The light sensors 32 arranged on the other side of the transverse weld seams 16 thus detect the light originating from the light sources 33 in the so-called transmitted light method. As light sensors 32 , for example, video cameras or photocells are conceivable, which convert differences in brightness into electrical signals. The measurement signal formed by the light sensors 32 is fed to the control device of the tubular bag machine 10 . The control device makes a comparison between the measurement signal of the light sensors 32 and target values stored in the control device. If the quality of the transverse weld seams 16 is no longer guaranteed, as described above, ie if their brightness changes, the difference between the setpoint and actual value of the light sensors 32 leads to a corresponding message from the control device. This message can, for example, lead to a display on a control monitor of the tubular bag machine 10 or to its shutdown.

Es hat sich in der Praxis herausgestellt, daß das erfindungsgemäße Verfahren so empfindlich ist, daß schon Soll-Ist-Unterschiede erfaßt werden, wenn die Qualität der Querschweißnähte 16 an und für sich noch befriedigend ist, jedoch tendentiell schlechter wird. Es handelt sich also um eine Früherkennung, d. h., daß bei einer ersten Meldung der Steuereinrichtung durch entsprechende Parameteränderungen der Schlauchbeutelmaschine 10, beispielsweise einer Änderung des Siegeldruckes oder einer Reinigung der Siegelbacken 18, 19, die Siegelqualität der Querschweißnähte 16 wieder verbessert werden kann. Somit kann Ausschuß durch undichte Querschweißnähte 16 vermieden werden. Selbstverständlich können in der Steuereinrichtung der Schlauchbeutelmaschine 10 auch derartige Sollwerte abgelegt werden, daß nur definitiv schlechte, d. h. undichte Querschweißnähte 16 erkannt werden. In diesem Fall können die entsprechenden Beutel 12 mittels einer nachgeordneten, nicht dargestellten Ausschleusvorrichtung ausgeschleust werden.It has been found in practice that the method according to the invention is so sensitive that target-actual differences can already be detected if the quality of the transverse weld seams 16 is still satisfactory in itself, but tends to get worse. It is therefore an early detection, that is to say that the seal quality of the transverse weld seams 16 can be improved again when the control device first reports the corresponding parameter changes to the tubular bag machine 10 , for example a change in the sealing pressure or cleaning of the sealing jaws 18 , 19 . Rejects due to leaky transverse weld seams 16 can thus be avoided. Of course, such setpoints can also be stored in the control device of the tubular bag machine 10 that only definitely bad, ie leaky, cross weld seams 16 are recognized. In this case, the corresponding bags 12 can be discharged by means of a downstream, not shown, discharge device.

Das erfindungsgemäße Verfahren ist nicht nur auf die Kontrolle von Querschweißnähten 16 beschränkt. Vielmehr können durch eine entsprechende Änderung der Verpackungsmaschine auch die (nicht dargestellten) Seitenfaltnähte der Beutel 12 kontrolliert werden. Dazu ist es notwendig, die an den Beutel 12 anliegenden Seitenfaltnähte aufzurichten, und mittels dem oben beschriebenen Verfahren sinngemäß zu überprüfen.The method according to the invention is not only limited to the control of transverse weld seams 16 . Rather, the side fold seams (not shown) of the bags 12 can also be checked by a corresponding change in the packaging machine. For this purpose, it is necessary to erect the side fold seams lying against the bag 12 and to check them analogously using the method described above.

Claims (6)

1. Verfahren zur Kontrolle von Schweißnähten (16) von Verpackungsbehältern (12), bei der zwei Lagen eines siegelfähigen Packstoffbandes (11) mittels einer Schweißeinrichtung (17) einer Verpackungsmaschine (10) miteinander verschweißt werden, und der Bereich der von wenigstens einer Lichtquelle (33) bestrahlten Schweißnähte (16) mittels wenigstens eines optischen Sensors (32) erfaßt wird, der sein Signal der Steuereinrichtung der Verpackungsmaschine (10) zuführt, welche einen Vergleich durchführt zwischen dem von dem Sensor (32) erfaßten Ist-Signal und einem in der Steuereinrichtung abgespeicherten Soll-Signal, dadurch gekennzeichnet, daß für die Verpackungsbehälter (12) Packstoffbänder (11) verwendet werden, die jeweils eine durchsichtige Trägerschicht (14) und eine eingefärbte Siegelschicht (15) zumindest im Bereich der Schweißnähte (16) aufweisen, und daß die Kontrolle der Schweißnähte (16) mittels des Sensors (32) im Durchlichtverfahren erfolgt.1. A method for checking weld seams ( 16 ) of packaging containers ( 12 ), in which two layers of a sealable packaging material band ( 11 ) are welded to one another by means of a welding device ( 17 ) of a packaging machine ( 10 ), and the area covered by at least one light source ( 33 ) irradiated weld seams ( 16 ) is detected by means of at least one optical sensor ( 32 ), which feeds its signal to the control device of the packaging machine ( 10 ), which carries out a comparison between the actual signal detected by the sensor ( 32 ) and one in the Control device stored target signal, characterized in that packaging strips ( 11 ) are used for the packaging containers ( 12 ), each of which has a transparent carrier layer ( 14 ) and a colored sealing layer ( 15 ) at least in the area of the weld seams ( 16 ), and that the control of the weld seams ( 16 ) by means of the sensor ( 32 ) in transparency procedure. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Schweißnähte (16) in einer Kontrolleinrichtung (30) kontinuierlich an dem optischen Sensor (32) vorbeigefördert werden. 2. The method according to claim 1, characterized in that the weld seams ( 16 ) in a control device ( 30 ) are continuously conveyed past the optical sensor ( 32 ). 3. Vorrichtung zur Kontrolle von Schweißnähten (16) von Verpackungsbehältern (12) nach einem Verfahren nach Anspruch 1 oder 2, mit einer wenigstens eine Lichtquelle (33) und wenigstens einen optischen Sensor (32) aufweisenden Kontrolleinrichtung (30), dadurch gekennzeichnet, daß der optische Sensor (32) und die Lichtquelle (33) auf unterschiedlichen Seiten der Schweißnähte (16) angeordnet sind.3. Device for checking weld seams ( 16 ) of packaging containers ( 12 ) according to a method according to claim 1 or 2, with a control device ( 30 ) having at least one light source ( 33 ) and at least one optical sensor ( 32 ), characterized in that the optical sensor ( 32 ) and the light source ( 33 ) are arranged on different sides of the weld seams ( 16 ). 4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die Lichtquelle (33) und der Sensor (32) fluchtend zueinander ausgerichtet sind.4. The device according to claim 3, characterized in that the light source ( 33 ) and the sensor ( 32 ) are aligned with one another. 5. Vorrichtung nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß daß zwischen der Verpackungsmaschine (10) und der Kontrolleinrichtung (30) mindestens eine Überfüreinrichtung (24, 26) angeordnet ist, die die Verpackungsbehälter (12) in Bezug auf deren ursprungliche Förderrichtung um 90 Grad dreht.5. Apparatus according to claim 3 or 4, characterized in that between the packaging machine ( 10 ) and the control device ( 30 ) at least one transfer device ( 24 , 26 ) is arranged which the packaging container ( 12 ) in relation to their original conveying direction Turns 90 degrees. 6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß die Kontrolleinrichtung (30) oberhalb der Überführeinrichtung (26) als weitgehend geschlossener Kasten ausgebildet ist.6. The device according to claim 5, characterized in that the control device ( 30 ) above the transfer device ( 26 ) is designed as a largely closed box.
DE1996103675 1996-02-02 1996-02-02 Welded seams control method for packing container Ceased DE19603675A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE1996103675 DE19603675A1 (en) 1996-02-02 1996-02-02 Welded seams control method for packing container
JP1707297A JPH09207921A (en) 1996-02-02 1997-01-30 Control method of seam in packaging container and device therefor
BR9700836A BR9700836A (en) 1996-02-02 1997-01-31 Process and device for the control of welding strips of packaging containers
FR9701058A FR2744422A1 (en) 1996-02-02 1997-01-31 METHOD AND APPARATUS FOR CHECKING WELDING CORDS OF PACKAGING CONTAINERS

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BR (1) BR9700836A (en)
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DE10121923A1 (en) * 2001-05-05 2002-11-14 Huf Tools Gmbh Control of welding of seam between two plastic components using laser beam comprises irradiating contact surfaces and weld with control beam and measuring intensities of reflected beams to detect faults
DE10121923C2 (en) * 2001-05-05 2003-05-08 Huf Tools Gmbh Method for controlling a weld in a work piece made of weldable plastic and apparatus for carrying out the method
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CN106494689A (en) * 2016-12-28 2017-03-15 宜兴众创空间科技发展有限公司 A kind of bag sealing device for instant noodles processing
EP3991950A1 (en) * 2020-12-29 2022-05-04 Gdm S.P.A. A method and an apparatus for checking a welding in an article made of a polymeric material
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