Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
  • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
  • B65B9/06—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it
  • B65B9/067—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it the web advancing continuously
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
  • B65B41/00—Supplying or feeding container-forming sheets or wrapping material
  • B65B41/12—Feeding webs from rolls
  • B65B41/16—Feeding webs from rolls by rollers
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
  • B65B49/00—Devices for folding or bending wrappers around contents
  • B65B49/16—Pneumatic means, e.g. air jets
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
  • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
  • B65B51/02—Applying adhesives or sealing liquids
  • B65B51/023—Applying adhesives or sealing liquids using applicator nozzles
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
  • B65B59/00—Arrangements to enable machines to handle articles of different sizes, to produce packages of different sizes, to vary the contents of packages, to handle different types of packaging material, or to give access for cleaning or maintenance purposes
  • B65B59/001—Arrangements to enable adjustments related to the product to be packaged
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
  • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
  • B65B61/04—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages
  • B65B61/06—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages by cutting

Definitions

• TITLE A MACHINE AND METHOD FOR PACKAGING ARTICLES BY
• the present invention relates to a machine for packaging articles by means of wrapping.
• the present invention relates to a machine suitable for wrapping a sheet of paper material, in particular a multi-ply sheet and in particular formed of at least one layer of packaging paper and one layer of embossed paper, the said layer being glued to the previous one to form a sheet which can absorb shocks, wrapped around articles so as to form closed bags containing individual articles.
• the material can be any heat-sealable film, including therein shock-absorbing films, for example the wrapping material commonly known as "bubble wrap".
• shock-absorbing films for example the wrapping material commonly known as "bubble wrap”.
• paper materials such as cardboard and paper for packaging and bagging.
• shock absorbing materials can have a lower environmental impact, as well as being lighter, colourable, and directly printable.
• Figure 1 shows, schematically, a perspective view of a machine according to the present invention
• Figure 2 shows, schematically, the steps involved in wrapping a sheet of paper around the articles so as to form bags containing individual articles, as performed by the machine in Figure 1;
• M denotes as a whole - the packaging machine suitable for wrapping a sheet P around articles A so as to form bags B containing individual articles, according to the present invention.
• the machine M comprises a structure 5 associated with the conveyor belt 2 and shaped so as to define a tunnel T for the passage of the articles A conveyed by the conveyor belt 2 above the central part PC of the sheet P, with the folding means 4, which are shaped and configured so as to meet the lateral parts PL1, PL2 of the sheet P, which are protruding laterally from the conveyor belt 2 during the feeding thereof, and fold the side parts PL1, PL2 of the sheet P around the structure 5 shaped like a tunnel T so that the two side flaps LI, L2 of the sheet P overlap and form a sheet tube TB, which is wrapped around the structure 5 shaped like a tunnel T.
• the compression and cutting means 7 are activated, and the bag is sealed and separated, with an air content which is such that there is no risk of the bag bursting or increasing in volume.
• the pressure applied by the press can be adjusted by predetermining the stroke or pressure applied to the bag in a commonly known way (using sensors or other means), in order to cause the air to escape without damaging the article or the wrapping sheet.
• the evacuation means can be mounted on the same undercarriage 71 as the compression and cutting means 7. Other systems may be provided. The evacuation of the air thus achieved prior to sealing is particularly advantageous with respect to commonly known systems, such as those entailing the perforation of the bag, which is commonly practiced with plastic bags.
• second glue application means are envisaged, which are suitable for applying glue to the surface of the sheet P which will be facing the articles and will form the internal surface of the tube TB.
• the said means apply the glue before the tube is formed, more preferably before feeding the sheet to the conveyor belt 2.
• the glue is applied in relation to the position and size of the articles, which are appropriately measured, so that the articles are appropriately deposited on the sheet, by the conveyor, between one glue application point and the next.
• the machine M comprises means 9 for creating an air cushion between the sheet tube TB and the structure 5 shaped like a tunnel T.
• This expedient prevents sliding and therefore friction between the sheet P (and in particular the tube TB that is being formed from it) and the walls of the structure 5 shaped like a tunnel T.
• the means 9 for creating an air cushion may comprise ducts 91, connected to a source of compressed air and endowed with a series of holes 92 for the passage of air.
• the ducts 91 are arranged so as to direct jets of air coming out of the holes 92 towards parts of the sheet P folded against the structure 5 shaped like a tunnel T.
• these ducts 91 can be arranged along at least part of the two side walls 51, 52 of the structure 5 shaped like a tunnel T.
• the means 9 for creating an air cushion may also comprise a suction belt 93, wound in a closed loop and positioned above the structure 5 shaped like a tunnel T so as to hold, by suction, the parts of the sheet P folded over the structure 5 shaped like a tunnel T, the said belt being used to guide the sheet P synchronously with the travel of the conveyor belt 2.
• the first glue application means 6 comprise at least one glue dispenser 61, fixed abutment elements 62, 63, arranged downstream of the dispenser 61 with respect to the travel direction E of the sheet P, in order to meet the edges LI, L2 of the sheet P overlapping at the top and facilitate the adhesion thereof and at least one mobile abutment element 64 which can be activated, in the event that the conveyor belt 2 stops, so that it is positioned on top of the two overlapping edges LI, L2 of the sheet P and keep them overlapping and therefore keep the tube TB sealed.
• an article loading station 8 may be envisaged which is positioned at an initial part of the conveying means 1 and equipped with identifying means 81 configured to detect and identify an identification code applied to articles A.
• the presence of the tunnel-shaped structure makes it also possible to use shock-absorbing wrapping sheets.
• the embossed layer will be facing the inside of the tube, in contact with the articles to be packaged.
• Other layers may also be featured, for example the embossed layer may be sandwiched between two smooth layers.
• the embossing may feature recesses with a circular base with a spacing therebetween ranging from 0.3 and 10 mm, for example 0.5 mm.
• Shock absorbing sheets of this kind are known and different types are commonly produced, for example featuring different numbers of layers and different sized embossing, and are commonly used to wrap objects to be packaged, to protect surfaces, as vibration-damping padding.
• a person skilled in the art will be able to choose the type that best reconciles different needs, such as flexibility, lightweight design, affordability, and protection requirements.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Making Paper Articles (AREA)
• Containers And Plastic Fillers For Packaging (AREA)
• Basic Packing Technique (AREA)
• Wrapping Of Specific Fragile Articles (AREA)
• Auxiliary Devices For And Details Of Packaging Control (AREA)

Priority Applications (6)

Applications Claiming Priority (2)

Publications (1)

Family

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Family Applications (1)

Country Status (7)

Families Citing this family (5)

Citations (5)

Family Cites Families (20)

• 2021
  • 2021-05-24 AU AU2021278403A patent/AU2021278403A1/en active Pending
  • 2021-05-24 WO PCT/IB2021/054488 patent/WO2021240342A1/en not_active Ceased
  • 2021-05-24 EP EP21730286.8A patent/EP4157726A1/en active Pending
  • 2021-05-24 CN CN202180038667.9A patent/CN115697849A/zh active Pending
  • 2021-05-24 BR BR112022022340A patent/BR112022022340A2/pt unknown
  • 2021-05-24 JP JP2022571266A patent/JP7809071B2/ja active Active
  • 2021-05-24 US US17/927,605 patent/US12344427B2/en active Active

Patent Citations (5)

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