Classifications

• • 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
  • B65D11/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material
  • B65D11/02—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material of curved cross-section
  • B65D11/04—Bottles or similar containers with necks or like restricted apertures designed for pouring contents
• • 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
  • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
  • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
  • B65D41/026—Caps or cap-like covers attached to the bottle neck by sliding them perpendicularly to the neck axis

Definitions

• the invention relates to a container made of thermoplastic and a method for its production.
• Such a container can be found, for example, in EP-A-483 976.
• the screw-top plastic bottle described there has a handle and is produced from a tubular element in the blow molding process.
• the thickness of the middle wall part is about a third to a quarter of the thickness of the bottom and the cover part.
• a label is applied to the container or this is placed in the blow mold.
• EP-A 126 575 shows a screw-lock plastic flap composed of a base, jacket and cap, the jacket of which represents an extruded, in particular multi-layer pipe piece, on which the base and the cap are locked and then welded. This does not solve the problem of labeling.
• the object of the invention is to create a container, the middle wall part of which can be printed directly, so that the application of labels is unnecessary.
• the wall part is welded from a there is a film and is welded to the floor and to the cover.
• the production of the container medium area from a flat film web allows the majority of the film web to be printed in any manner, since the subsequent container production processes this film web only at its edges, but not at the printed area.
• Both the welding of the longitudinal seam and the welding to the bottom and the cover part each only require heating of a narrow strip.
• the bottom and the cover part each have a flange to which the wall part is welded.
• the flange is arranged on the same side, namely in the case of the cover part on the inside of the container and in the case of the bottom on the outside.
• the design of the same type makes it possible to connect the cover part and the floor to the wall part in succession by means of a single transverse welding device.
• the cover part is provided with a container neck which has a slide-on guide that is open at least on one side for a sliding closure. As a result, the container can be inserted into the dispenser from the side.
• a preferred method for producing containers according to the invention provides that a flat, in particular printed film web is closed to form a tube and welded along the two longitudinal edges, and that a cover part is alternately inserted in the closing tube and a bottom is introduced and in each case welded to the hose in the already closed area, and that each container is then cut off.
• the flat film web is fed via a shaped shoulder and corresponding guide elements to a thin-walled tube which forms a core and serves as a counter-holder for the welding device which produces the longitudinal seam and acts from the outside.
• each container is preferably manufactured with the cover part ahead, a first cover part is fed from the magazine through the core tube, the closable opening of the cover part pointing in the feed direction, so that the feed tool, which at the same time forms an inner counter-holder for the transverse seam welding, can attack half of the flange of the cover part.
• the cover part is welded to the hose.
• the tube feed and the longitudinal welding are continued and the counterholder is pulled back out of the cover part through the core tube.
• the feed length of the tube that forms the filling volume of the container is controlled, for example, by recognizing markings printed on the film.
• a bottom is fed through the core tube from a magazine by means of the feed tool, the flange of which likewise lies on the side facing the feed tool, which later represents the outside of the container.
• the counter holder of the feed tool can therefore also support the floor.
• the film feed is stopped again and the tube is welded to the floor.
• the hose is cut off and a finished container is ejected.
• Another cover part is fed from the magazine and welded to the hose and the next container is manufactured in the manner described.
• FIG. 1 shows a longitudinal section through a container
• FIG. 2 shows a section through the closed cover part
• FIG. 3 shows a section along the line III-III of FIG.
• FIG. 4 a schematic front view of a manufacturing device
• FIG. 5 a schematic side view of the manufacturing device
• Fig. 6 is a schematic plan view of the
• a container has a base 1, in particular made of polyethylene, with a flange 6 projecting downwards and outwards.
• a wall part 2 consisting of a film is welded to the flange 6. The thickness of the film is preferably between 0.08 mm and 0.1 mm.
• the wall part 2 is welded to a flange 7 of a cover part 4.
• the opening of the container is formed in an upstanding container neck 5, which is provided with a slide-on guide 8 for a sliding closure 9 that can be pushed on from the side.
• a sealing insert 33 is inserted, which has raised ring webs 34 on the top.
• the sliding closure 9 engages under side flanges 31 of the container neck 5 with inwardly directed webs 32.
• the wall part 2 is made of a flat sheet of film and therefore has a longitudinal weld 3. This flat film web is preferably printed, so that the application of a label on the container is unnecessary.
• the closed container for example filled with liquid soap, is stable because it only has its largest volume in the upright position and collapses due to the small thickness of the film during emptying, so that its empty volume is reduced to a minimum.
• the thickness of the bottom 1 and the cover part 4 is preferably between 0.6 and 0.8 mm.
• a production system 10 according to FIGS. 4 to 6 has a thin-walled tube 11 forming a mandrel, to which a flat, in particular printed film web 2 * is fed from a roll 20.
• the film web 2 1 reaches the core tube 11 via a shaped shoulder 12 and is closed around it to form a tube, passing through a longitudinal welding device 16, the counter-holder of which forms the core tube 11.
• a magazine 13 for bottom 1 and a magazine 14 for cover parts 4 are provided on the side of a feed device 15.
• transverse sliding devices 25 and 26 is alternately one
• the latter detects the part that has been pushed in within the flange 6, 7 and leads it through the core tube 11 to a transverse welding direction 17 arranged below the core tube 11, which welds the tube first to a cover part 4 and then to a base 1.
• the cross-welding device 17 is provided with a cutting device which cuts the hose along each base 1, so that a container is ejected.
• the hose length determining the filling volume is controlled by a feed device 19 which has, for example, a sensor that recognizes printed markings.
• the cross section of the container can be of any design.
• the transverse welding device 17 can be designed, for example, according to FIG. 6. It each has a welding jaw 21, 22 assigned to a quadrant, which, alternatively, is displaceable in the diagonals from the outside and is pressed against the areas of the wall part 2 and the base 1 or the cover part 4 to be welded, which are pressed against those arranged on the inside Brackets 18 of the feed device 15 are supported. If appropriate, the counter-holder 18 can be composed of expandable individual elements.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Lining Or Joining Of Plastics Or The Like (AREA)
• Containers And Plastic Fillers For Packaging (AREA)
• Containers Having Bodies Formed In One Piece (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=3524686

Family Applications (1)

Country Status (6)

Families Citing this family (16)

Family Cites Families (21)

• 1994
  • 1994-09-26 DE DE59402316T patent/DE59402316D1/de not_active Expired - Lifetime
  • 1994-09-26 AT AT94926709T patent/ATE151030T1/de active
  • 1994-09-26 WO PCT/AT1994/000137 patent/WO1995009111A1/fr active IP Right Grant
  • 1994-09-26 ES ES94926709T patent/ES2100087T3/es not_active Expired - Lifetime
  • 1994-09-26 US US08/619,709 patent/US5730694A/en not_active Expired - Lifetime
  • 1994-09-26 EP EP94926709A patent/EP0720565B1/fr not_active Expired - Lifetime

Non-Patent Citations (1)

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