WO2005080209A2 - Befüllbarer polster und verfahren und vorrichtung zur herstellung eines polsters - Google Patents
Befüllbarer polster und verfahren und vorrichtung zur herstellung eines polsters Download PDFInfo
- Publication number
- WO2005080209A2 WO2005080209A2 PCT/EP2005/050655 EP2005050655W WO2005080209A2 WO 2005080209 A2 WO2005080209 A2 WO 2005080209A2 EP 2005050655 W EP2005050655 W EP 2005050655W WO 2005080209 A2 WO2005080209 A2 WO 2005080209A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cushion
- sonotrode
- welding
- fillable
- upholstery
- Prior art date
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Classifications
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- 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
- B29C66/439—Joining sheets for making inflated articles without using a mould
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/02—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
- B65D81/05—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
- B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
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- 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
- B29C66/836—Moving relative to and tangentially to the parts to be joined, e.g. transversely to the displacement of the parts to be joined, e.g. using a X-Y table
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- 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
- B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
- B31D5/00—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles
- B31D5/0039—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles for making dunnage or cushion pads
- B31D5/0073—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles for making dunnage or cushion pads including pillow forming
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/02—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
- B65D81/05—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents
- B65D81/053—Corner, edge or end protectors
- B65D81/057—Protectors contacting four surfaces of the packaged article, e.g. four-sided corner protectors
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- 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
- B29C65/7443—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 by means of ultrasonic vibrations
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- 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
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- 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
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- 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
- B29C66/863—Robotised, e.g. mounted on a robot arm
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- 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
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- 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
- B29C66/9261—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 displacement of the joining tools
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- 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
- B29C66/929—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools characterized by specific pressure, force, mechanical power or displacement values or ranges
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- 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
- B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
- B31D2205/00—Multiple-step processes for making three-dimensional articles
- B31D2205/0005—Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads
- B31D2205/0011—Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads including particular additional operations
- B31D2205/0017—Providing stock material in a particular form
- B31D2205/0023—Providing stock material in a particular form as web from a roll
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2581/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D2581/02—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
- B65D2581/05—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents
- B65D2581/051—Details of packaging elements for maintaining contents at spaced relation from package walls, or from other contents
- B65D2581/052—Materials
- B65D2581/055—Plastic in general, e.g. foamed plastic, molded plastic, extruded plastic
Definitions
- the invention relates to a fillable upholstery, a method and a device for assembling fillable upholstery, in particular air-fillable upholstery, in which at least two plastic films are welded together along a contour of the upholstery in such a way that a fillable cavity is formed, and a method and a device for filling empty cushions with gas.
- the object is achieved by a cushion according to claim 1. With this four corners, two edges and a surface of the object can now be upholstered, the upholstery being held in position at two corners by the recesses at its longitudinal ends. With two of these cushions, all corners of the object can be upholstered and, if necessary, two additional surfaces, that is to say the base surface on which the object rests in the packaging, for example a box, and the top surface.
- the cushion can be guided around the corners of the object when it is later placed around the object, it can be provided that the cushion consists of a plurality of partial cushions, in particular with chambers separated from one another.
- a partial cushion which has a closed, fillable chamber, for the first edge to be protected
- a further partial cushion which also has a closed, fillable chamber, for the second edge to be protected.
- the cushion can then be folded between the partial cushions and taken around the corner.
- the two partial cushions it would also be possible for the two partial cushions to have a common fillable chamber.
- the individual partial cushion itself could also have several fillable chambers, which increases safety if one chamber should leak.
- a possible embodiment provides that a partial cushion is provided for the edge to be protected, which has a recess with which the partial cushion can be attached to the edge to be protected. This is achieved, for example, by means of rectangular ring pads, the recess of which is essentially as long as the edge of the object to be protected.
- the two partial cushions can be connected to one another by a band or by a further partial cushion.
- the tape has the advantage that it can be easily manufactured, but the disadvantage that it can only protect the spanned surface of the object to a limited extent, which is therefore mainly protected by the partial cushions protruding over the edges.
- Another partial pad between the two partial pads for the two edges has the advantage that the spanned surface of the object is also padded and held in position relative to a packaging in which the object including the cushion is arranged.
- the recess has a smaller width in the middle than at the ends.
- the partial cushion has e.g. then no longer the shape of a rectangle, but the partial areas of the upholstery, which are arranged along the edge of the object, are moved towards each other, so that the rectangle approximates the shape of an "8".
- Another object of the invention is to provide a method and a device for the production of upholstery (assembly and inflation).
- Assembling is the production of weld seams along the desired contours of the upholstery. It is known from the prior art to use thermal welding processes for the manufacture of fillable cushions. These have the disadvantage that the quality of the weld seams is unsatisfactory due to the relatively large heat affected zone of the stamps used. Hairline cracks can form in the plastic film, through which air can later escape. In addition, the process is inflexible due to the use of stamps, and only large quantities of one and the same cushion can be produced economically.
- the principle of ultrasonic welding is based on the fact that ultrasonic vibrations are transmitted into a sonotrode by a generator.
- the sonotrode transmits the ultrasonic vibrations to the plastic films and is pressed onto the plastic films arranged on a flat support surface (e.g. a glass plate).
- the ultrasonic vibrations generate frictional heat on the joining surfaces of the plastic films and the plastic film is caused to flow viscously. After cooling, the welded connection is firm.
- plastic films are understood to mean thermoplastics that have a thickness of at most 200 ⁇ m.
- the preferred thickness for air-filled cushions with high strength is between 80 and 150 ⁇ m, in particular 90 ⁇ m.
- films that can be used are HD-PE (high-density polyethylene, has low gas permeability), or composite films with a gas-impermeable, solid layer that is usually difficult to weld (e.g. polyamide films, PA), and a well-weldable layer (e.g. polyethylene films, PE), i.e. PA-PE films.
- the use of the manufactured cushions as air cushions in the packaging industry the use of such plastic films with high strength and low gas permeability is an important prerequisite, since the cushions there are used to fix objects in containers, to absorb impacts and vibrations, and to fill in cavities be used in packaging. These functions must also be maintained when the upholstery is stored for a long time (there must not be too much air escaping from the upholstery) or when subjected to impact, low external pressure and / or extreme temperature fluctuations (transport by plane).
- the cavity of the cushion can also be filled with another fluid, namely with a liquid or with a gel.
- the starting material for upholstery can be either individual, separate plastic films, or a plastic film that is beaten together or a tube.
- Ultrasound welding can basically be carried out in two ways: by moving a sonotrode along the contour of the pad, in particular spatially linearly in three axes, or by a sonotrode resting on the plastic film for a period of time, i.e. a sonotrode as a stamp that conforms to the shape of the has to be produced weld seam and is normal to the welding plane, is pressed onto the plastic film.
- the time period depends on the thickness and the melting point of the plastic film.
- the first variant has the advantage that any contour can be produced, which speaks for the use for the upholstery according to the invention, because here individual upholstery must be produced for each object with different dimensions.
- the second variant is advantageous if the same contour is to be produced often, which can be done much faster than if the contour has to be traversed several times by a sonotrode.
- the sonotrode in the case of curved contours, is rotated about an axis normal to the welding plane in such a way that the sonotrode is oriented tangentially to the contour. This ensures that the sonotrode is always aligned in the direction of the weld seam, which ensures a proper weld seam with consistent quality.
- the movement of the sonotrode is controlled electronically on the basis of any predetermined contour.
- the contour can be stored in a file on a computer and further evaluated directly to the control device of the sonotrode.
- the control device can e.g. connected to a CAD station.
- the first variant can be carried out using a so-called plotter.
- the ultrasound welding device is mounted on these and can be moved linearly in space along three axes that are normal to one another, with the additional possibility of rotating around the axis normal to the welding plane.
- one embodiment of the invention provides that the sonotrode creates a perforation or a continuous cut in the plastic film.
- a sonotrode with a plurality of blades can be used, at least one of which is designed for welding and at least one for cutting or for producing a perforation (for example a continuous notch along which the cushion can later be separated from the surrounding material). This means that the welding and cutting / perforating of the upholstery can take place outside the weld seam in one work step.
- the sonotrode can also have two or more blades only for welding, so that several parallel weld seams are produced at the same time.
- At least one plastic film for each cushion is given at least one punch-out before or after the weld.
- the upholstery can later be filled by a device which is arranged outside the upholstery level, for example above the upholstery level. Inflation is possible both with a complete punch (through all plastic films) and with a punch in only one plastic film.
- only an open weld seam is produced, that is to say the cushion is not closed, so that it can be filled by interrupting the weld seam. In this case, a punch would be provided outside the contour of the cushion so that the cushion can be filled through this and by interrupting the weld seam.
- the punched-out is to be arranged within the contour of the cushion, preferably close to the weld seam, so that it can be filled.
- the upholstery can be closed by dividing the area with the punched-out area by another weld seam from the remaining filled upholstery volume.
- a fillable cushion can be produced, in which at least two layers of plastic films are welded together along a contour of the cushion in such a way that a fillable cavity is created, the weld seam being interrupted at one point for the purpose of filling is.
- an opening for filling the cushion is provided outside the fillable cavity in the region of the interrupted point tangential to the contour of the cushion in at least one plastic film.
- the upholstery produced according to the invention can easily be filled with a method according to the invention or a device according to the invention, as shown in claims 23 and 30, respectively. This is applicable both when the empty upholstery is already present as separate upholstery and when the upholstery is only in the form of the weld seams on a continuous belt made of at least two plastic films welded together.
- the latter has the advantage that the tape can be transported more easily in the filling device than individual pads.
- the invention provides that at least one nozzle is arranged at a distance from an opening, in particular a punched out, in one of the plastic foils of the cushion at an angle to the surface of the cushion or to its support surface, and gas is blown out of this nozzle onto the opening.
- the nozzle had to be inserted for filling either into an opening specially made in one of the plastic foils or through an interruption in the weld seam between the plastic foils, see for example WO 01/70593, Fig. 1, which has a filler opening specially shaped by weld seams 136 shows.
- the use of valves is also known from the prior art, see for example WO 98/23492.
- the geometry of the nozzle can be kept simpler, since it does not have to be matched to a specific shape of the filling opening.
- the nozzle forms an angle with the plane of the empty cushion between 5 ° and 60 °, preferably between 15 ° and 40 °.
- a predetermined amount of gas is blown out of the nozzle per opening. This can be achieved, for example, by the gas in a storage container having a defined pressure and being supplied to the nozzle for a defined time.
- the pressure in a filled cushion is usually below 1 bar overpressure, normally the overpressure in the cushion is 0.2-0.6 bar.
- a state of equilibrium occurs, which is dependent on the nozzle geometry and the distance between the nozzle and the opening.
- the compressed air network of a company that normally provides a pressure of about 6 bar can be used, the pressure being able to be reduced to 2-3 bar by a pressure regulator, which in practice has proven to be favorable for inflation.
- a height sensor or a height limiter can be used, which measures the height of the inflated cushion and switches off the gas supply when a certain value or the predetermined limit is reached.
- the cushion is held stably at at least two points during inflation. This can be done, for example, by means of two stamps with a small contact surface, each of which presses and holds the cushion on one side of the opening at the edge of the film outside the weld seam against the base. After inflating, the pad is closed by welding. Depending on where the opening for inflation has been arranged, this welding is carried out: if the opening is arranged outside the contour of the cushion before an interruption of the weld seam, the interruption of the weld seam is closed with the weld following the contour of the cushion. If the opening lies within the contour of the cushion, at least the opening is separated from the remaining cushion volume by the weld. This can be done by means of ultrasonic welding, but for the sake of simplicity this welding can also be done thermally, for example in the form of a stamp which is pressed onto the cushion for a certain period of time.
- the point of the pad to be welded is depressurized during welding.
- a separate stamp can be provided for this purpose, with which the area around the opening is pressed off, so that the gas in the cushion does not exert any pressure on the opening during welding and shortly thereafter (until after cooling). This can be done, for example, by a stamp with a curved contour that is filled with the curvature Cushion is pressed onto the weld seams on both sides of the opening.
- cushions with different geometries are to be inflated, for example where the distance between the opening and the interruption of the weld seam is different or the diameter of the opening, it may be necessary to swivel the nozzle, i.e. to change the angle between the nozzle and the cushion plane, and / or change the distance of the nozzle to the upholstery level.
- the ratio of the diameter of the nozzle at the gas outlet and the distance of the nozzle to the opening of the cushion is between 1: 3 and 1:10.
- the nozzle movable If the position of the opening of the cushion changes very significantly during inflation due to the cushion geometry (e.g. high cushion), it makes sense to make the nozzle movable so that it can be swiveled by the angle between the nozzle and the plane of the empty cushion to change, as well as in the sense of a translational movement, to change the distance to the upholstery.
- the cushion geometry e.g. high cushion
- FIGS. 1 to 7 illustrate the devices according to the invention by way of example and schematically, and the following descriptions. Show it
- FIG. 7 shows a longitudinal section through an inflator according to FIG. 6. 1 to 4, an object 19 to be packaged, here a multimedia device (eg video recorder, DVD player, ...), is shown, to which two pads according to the invention are attached.
- the object with the upholstery can be packed in a box which is matched to the object with upholstery in terms of the internal dimensions in such a way that it is fixed in the box.
- Several padded objects can also be packed in a box one above the other and / or side by side.
- Fig. 1 the padded article 19 is shown obliquely from above in the upper representation and obliquely from below in the lower representation.
- the front of the item 19 is identified by the buttons on it.
- the two pads 20, 21 each consist of two partial pads for the edges to be protected, hereinafter referred to as edge pads 16. These edge pads are connected to each other by a band 18 on one side.
- the edge pads 16 are shown with contour lines to illustrate their shape.
- the cushion 21 protects the left rear vertical edge and the two left rear corners of the object 19 with the one edge cushion 16, and the right front vertical edge of the object 19 with the associated corners with the other edge cushion 16.
- the band 18 is guided over the top of the article 19.
- the cushion 20 protects with one edge cushion 16 the left front vertical edge and the two left front corners of the object 19, with the other
- Edge cushion 16 the right rear vertical edge of the object 19 with the associated corners.
- the band 18 is guided over the underside of the object 19.
- the band consists of two layers of non-welded plastic film, so that the entire cushion 20, 21 can be made from a single piece of plastic film.
- the edge pads 16 can also be manufactured as independent individual pads and connected to one side before or after the inflation by means of a band.
- the padded article 19 is shown from the front in the upper illustration and from above in the lower illustration. It can be seen here that the band 18 is stretched between the two edge pads 16 and does not rest on the object 19, so that the stretched band provides a protective effect for the surface underneath (top or bottom of the object 19).
- the padded article 19 is shown again obliquely from above in the upper representation and obliquely from below in the lower representation.
- the two cushions 30, 31 consist of two edge pads 26, which are connected to one another on each side by a surface pad 17, a flat, band-shaped region 27 being provided between surface pad 17 and the two edge pads 26.
- the surface cushion 17 has an annular filled edge which is adapted to the shape of the object 19 in the outer dimension.
- the plastic film In the interior, as with the edge cushions 16, 26, the plastic film is not cut out along the contour of the cushion, but this is retained.
- Accessories for the object 19, such as cables, operating instructions, remote controls, can be transported into the recess 28 in the interior.
- the plastic film acts as a protective layer between the accessories and the object 19.
- the surface cushion 17 can also be designed to be inflatable over the entire surface, have a plurality of connected or separate chambers or also have a plurality of depressions 28, the shape of which can be adapted to the individual accessories, that is to say they can grip around them in a form-fitting manner.
- the cushion 31 protects the left rear vertical edge and the two left rear corners of the object 19 with the one edge cushion 26, and the right front vertical edge of the object 19 with the associated corners with the other edge cushion 26.
- the surface cushion 17 lies on the top of the object 19.
- the cushion 30 protects the left front vertical edge and the two left front corners of the object 19 with the one edge cushion 26, and the right rear vertical edge of the object 19 with the associated corners with the other edge cushion 26.
- the associated surface cushion 17 lies on the underside of the object 19.
- the edge pads 26 have a constriction in the middle, so that the
- Edge pads assume the outer shape of an "8."
- the area surrounded by the edge pad has a smaller width along the center of the edge pad than at the ends, but the cross sections of the annular edge pad in the center of the edge pad are not smaller than at the top or bottom
- the band-shaped area 27 consists of two layers of non-welded plastic film, so that the entire pad 30, 31 can be made in one piece, but the edge pads 26 and the surface pad 17 can also be made as independent individual pads and before or after inflation connected by a band on one side. 4, the padded article 19 is shown from the front in the upper illustration and from above in the lower illustration.
- FIGS. 1, 2 on the one hand and FIGS. 3, 4 on the other hand can be combined with one another.
- Straight edge pads 16 can be combined with surface pads 17 to form a total pad, constricted edge pads 26 can be connected to bands 18.
- edge pads 16, 26 can be plugged onto the edges of an object to be protected alone without connection to one another as protection.
- 5 shows an assembler according to the invention for producing weld seams along the desired contours of the cushion.
- Weld seams 3 are produced from two plastic foils 22, 23 wound on rolls by welding using an ultrasound welding device 4 (welding device for short) which has a sonotrode 5.
- the plastic films 22, 23 are fed discontinuously to the welding device 4 by drives and guide rollers, not shown, it being possible for openings 7 to be punched into the upper plastic film 22 on a first punching portal 24. If both plastic foils 22, 23 are to be punched through, the first punching portal 24 does not function, but the punching is carried out by a second punching portal 25.
- the welding is carried out on a support surface 29, which should be flat, smooth and preferably not elastic, for example on a glass plate.
- the welding device 4 is arranged on a portal 2, which, like a plotter, can be moved in all three spatial directions relative to the support surface 29, which is indicated by the double arrows. In this way, weld seams 3 of any shape can be produced.
- a motor 6 is arranged next to the welding device 4 and adjusts the sonotrode 5 about the axis normal to the welding plane, so that the sonotrode is always aligned tangentially to the contour.
- weld seams 3 on the width of the plastic films 22, 23 have been completed, they are transported more efficiently, usually by one pad length, so that the next pads can be produced when the plastic film is at rest. Since in the example in FIG. 5 the openings 7 are outside the contour of the upholstery, the weld seam 3 remains open for the later filling of the upholstery.
- the prefabricated plastic film 9 is then either rolled up or folded.
- 6 shows an inflator according to the invention, which is used to inflate pre-assembled empty cushions. These are rotatably mounted on the inflator as a roll 10 made of prefabricated plastic film 9.
- two identical, essentially rectangular ring cushions 1 with rounded corners are arranged next to one another across the film width, the corresponding weld seams 3 being shown on one half of the plastic film 9 for the sake of simplicity.
- a perforation 15 is already provided between the individual cushions, along which the cushions can be separated.
- the weld seam 3 has an interruption for each cushion in the area of the opening 7, through which the cushion can be inflated.
- a welding stamp 11 which has a rectangular stamp surface with which the interruption of the weld seam 3 can be closed by the action of heat, the welding stamp 11 being at a distance from the padding into the welding position from its rest position, as in FIG. 6 shown, can be lowered.
- the point to be welded must be depressurized with a further stamp 12.
- the stamp 12 is first lowered from the rest position shown onto the cushion 1, then the welding stamp 11, which is raised again after welding, while the stamp 12 remains pressed onto the cushion until the weld seam has cooled and is resilient.
- Both stamps 11, 12 can be moved and fixed on a beam 13 along the beam, so that the stamps can be set to different cushion geometries and film widths.
- Two or more punches 11, 12 and nozzles 8 can also be arranged on the beam 13, so that several cushions can be inflated at the same time.
- the stamps 11, 12 can be provided on the left and right in relation to the direction of the bar 13, which stamps the plastic film 9 in the area between the weld seam 3 and the perforation 15 on the left and right press the opening 7 against the surface.
- FIG. 7 shows a longitudinal section through an inflator according to FIG. 6, the section running through the opening 7 and only the area around the punches 11 and 12 and the nozzle 8 being shown.
- the prefabricated plastic film 9 is transported by guide rollers 14 and advanced so far that the opening 7 of the Upholstery comes to rest where the jet of the nozzle 8, whose gas feed line is not shown, strikes. When this point is reached, the plastic film 9 is stopped and gas is blown through the nozzle into the opening.
- the nozzle has an angle with the upholstery plane which is between 25 ° and 35 °.
- the opening 7 is provided at least in the form of a punched-out section in the upper layer of the prefabricated plastic film 9, but the cushions can also be inflated when both layers of the plastic film 9 have been punched through.
- the latter has the advantage that the opening 7 can also only be produced in the prefabricated plastic film 9, whereas otherwise the opening only has to be produced in one position before the assembly. If both layers of the plastic film 9 have been punched through, a device must be provided when inflating which enables the separation of the two plastic films, that is to say holds the lower plastic film so that the upper one can be lifted off by the gas pressure.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Buffer Packaging (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002553371A CA2553371A1 (en) | 2004-02-20 | 2005-02-15 | Fillable cushioning element and method for the production thereof |
JP2006553587A JP2007523017A (ja) | 2004-02-20 | 2005-02-15 | 充填可能なクッションおよびクッションを製造するための方法および装置 |
EP05716701A EP1716047A2 (de) | 2004-02-20 | 2005-02-15 | Befüllbarer polster und verfahren und vorrichtung zur herstellung eines polsters |
US10/589,932 US20070278123A1 (en) | 2004-02-20 | 2005-02-15 | Fillable Cushion and Method and Apparatus for Producing a Cushion |
IL176820A IL176820A0 (en) | 2004-02-20 | 2006-07-13 | Fillable cushioning element and method for the production thereof |
NO20064228A NO20064228L (no) | 2004-02-20 | 2006-09-19 | Fyllbart puteelement og fremgangsmate for a produsere disse |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0027804A AT414232B (de) | 2004-02-20 | 2004-02-20 | Befüllbarer polster und verfahren und vorrichtung zur herstellung eines polsters |
ATA278/2004 | 2004-02-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2005080209A2 true WO2005080209A2 (de) | 2005-09-01 |
WO2005080209A3 WO2005080209A3 (de) | 2006-03-30 |
Family
ID=34865655
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2005/050655 WO2005080209A2 (de) | 2004-02-20 | 2005-02-15 | Befüllbarer polster und verfahren und vorrichtung zur herstellung eines polsters |
Country Status (11)
Country | Link |
---|---|
US (1) | US20070278123A1 (de) |
EP (1) | EP1716047A2 (de) |
JP (1) | JP2007523017A (de) |
KR (1) | KR20060135825A (de) |
CN (1) | CN1922083A (de) |
AT (1) | AT414232B (de) |
CA (1) | CA2553371A1 (de) |
IL (1) | IL176820A0 (de) |
NO (1) | NO20064228L (de) |
TW (1) | TW200528362A (de) |
WO (1) | WO2005080209A2 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007028724A1 (de) * | 2005-09-08 | 2007-03-15 | Mechatronic Systemtechnik Gmbh | Verfahren und vorrichtung zur herstellung eines befüllbaren polsters |
EP2769919A4 (de) * | 2012-11-21 | 2015-05-20 | Carmona Manuel Ruiz | Vorrichtung zum verbinden eines folienartigen körpers mit der öffnung eines behälters |
DE102014103355A1 (de) * | 2014-03-12 | 2015-09-17 | Mondi Consumer Packaging Technologies Gmbh | Verfahren zum Verpacken von Stückgut in einer Umverpackung, Stückgut-Verpackungsanordnung sowie Fluidpolsterkissen |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009035006A1 (ja) * | 2007-09-14 | 2009-03-19 | Advantest Corporation | 梱包用緩衝材及びそれを備えた梱包材 |
GB2477495A (en) * | 2010-02-01 | 2011-08-10 | Sky Packaging Ltd | Inflatable cushions |
US9950491B2 (en) * | 2014-04-04 | 2018-04-24 | Pregis Innovative Packaging Llc | Flexible nozzle for inflation and sealing device |
KR101592794B1 (ko) * | 2014-12-12 | 2016-02-12 | 현대자동차주식회사 | 크래쉬패드 |
CN112549558B (zh) * | 2020-11-13 | 2022-06-21 | 骆炳华 | 一种空间布气胀式制品的制作方法及空间布气胀式制品 |
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CH348353A (de) * | 1955-10-06 | 1960-08-15 | Linden Sen Alfred | Verfahren und Vorrichtung zur Erzeugung gefüllter Behälter aus einem thermoplastischen Kunststoff |
FR2079851A5 (de) * | 1970-02-16 | 1971-11-12 | Fara Pierre | |
WO1998023492A1 (en) * | 1996-11-26 | 1998-06-04 | Sealed Air Corporation | Self-closing valve structure |
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WO2001070593A1 (en) * | 2000-03-17 | 2001-09-27 | Sealed Air Corporation (Us) | Packaging cushion and packaging assemblies incorporating same |
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FR2686322B1 (fr) * | 1992-01-22 | 1994-04-29 | Conceptions Innov Indle Atel | Coussin gonflable pour emballage. |
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US6244441B1 (en) * | 1999-11-10 | 2001-06-12 | Cryovac, Inc. | Heat sealable barrier film for fluid fillable packaging cushions and cushions made therefrom |
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2004
- 2004-02-20 AT AT0027804A patent/AT414232B/de not_active IP Right Cessation
-
2005
- 2005-02-15 EP EP05716701A patent/EP1716047A2/de not_active Withdrawn
- 2005-02-15 WO PCT/EP2005/050655 patent/WO2005080209A2/de active Application Filing
- 2005-02-15 KR KR1020067019305A patent/KR20060135825A/ko not_active Application Discontinuation
- 2005-02-15 CN CNA200580005314XA patent/CN1922083A/zh active Pending
- 2005-02-15 US US10/589,932 patent/US20070278123A1/en not_active Abandoned
- 2005-02-15 CA CA002553371A patent/CA2553371A1/en not_active Abandoned
- 2005-02-15 JP JP2006553587A patent/JP2007523017A/ja active Pending
- 2005-02-17 TW TW094104629A patent/TW200528362A/zh unknown
-
2006
- 2006-07-13 IL IL176820A patent/IL176820A0/en unknown
- 2006-09-19 NO NO20064228A patent/NO20064228L/no not_active Application Discontinuation
Patent Citations (7)
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US2861406A (en) * | 1953-01-02 | 1958-11-25 | Henry T Holsman | Packaging method and apparatus |
CH348353A (de) * | 1955-10-06 | 1960-08-15 | Linden Sen Alfred | Verfahren und Vorrichtung zur Erzeugung gefüllter Behälter aus einem thermoplastischen Kunststoff |
FR2079851A5 (de) * | 1970-02-16 | 1971-11-12 | Fara Pierre | |
WO1998023492A1 (en) * | 1996-11-26 | 1998-06-04 | Sealed Air Corporation | Self-closing valve structure |
US6076677A (en) * | 1998-06-03 | 2000-06-20 | Sealed Air Corporation (U.S.) | Packaging system and inflatable packaging cushion |
WO2000044644A1 (de) * | 1999-01-26 | 2000-08-03 | 1Stt Components Software Ges.M.B.H. | Transportsicherung und verfahren zum herstellen derselben |
WO2001070593A1 (en) * | 2000-03-17 | 2001-09-27 | Sealed Air Corporation (Us) | Packaging cushion and packaging assemblies incorporating same |
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WO2007028724A1 (de) * | 2005-09-08 | 2007-03-15 | Mechatronic Systemtechnik Gmbh | Verfahren und vorrichtung zur herstellung eines befüllbaren polsters |
EP2769919A4 (de) * | 2012-11-21 | 2015-05-20 | Carmona Manuel Ruiz | Vorrichtung zum verbinden eines folienartigen körpers mit der öffnung eines behälters |
DE102014103355A1 (de) * | 2014-03-12 | 2015-09-17 | Mondi Consumer Packaging Technologies Gmbh | Verfahren zum Verpacken von Stückgut in einer Umverpackung, Stückgut-Verpackungsanordnung sowie Fluidpolsterkissen |
Also Published As
Publication number | Publication date |
---|---|
US20070278123A1 (en) | 2007-12-06 |
JP2007523017A (ja) | 2007-08-16 |
TW200528362A (en) | 2005-09-01 |
ATA2782004A (de) | 2006-01-15 |
CA2553371A1 (en) | 2005-09-01 |
CN1922083A (zh) | 2007-02-28 |
NO20064228L (no) | 2006-11-17 |
KR20060135825A (ko) | 2006-12-29 |
IL176820A0 (en) | 2006-10-31 |
EP1716047A2 (de) | 2006-11-02 |
WO2005080209A3 (de) | 2006-03-30 |
AT414232B (de) | 2006-10-15 |
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