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Folding unit for pourable food packaging machines

A technology of food packaging and components, applied in the direction of wrapping paper bending device, packaging, transportation packaging, etc.

Active Publication Date: 2015-11-25
TETRA LAVAL HLDG & FINANCE SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0028] Although efficient, there is still room for improvement in the above types of packaging machines

Method used

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  • Folding unit for pourable food packaging machines
  • Folding unit for pourable food packaging machines
  • Folding unit for pourable food packaging machines

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0049] figure 1 Numeral 1 in the design indicates the entire folding unit of a packaging machine (not shown) for continuous manufacture of pourable food products (such as pasteurized or UHT milk, juice, Wine, etc.) sealed package 2.

[0050] Upstream of unit 1, the tube is formed in a known manner by folding and sealing a known heat-sealed sheet material into a web (not shown) in the machine direction, the heat-sealed sheet material may include a base layer providing stiffness and strength , the base layer may be formed from a layer of fibrous material (eg, paper), or may be formed from a layer of mineral-filled polypropylene material; and multiple layers of heat-sealing plastic material (eg, polyethylene film) covering both sides of the base layer. In the case of an aseptic package 2 for long-term storage products such as UHT milk, the packaging material may also include a layer of air and light barrier material, such as aluminum foil or vinyl ethanol (EVOH) foil, superimpos...

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PUM

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Abstract

There is described a folding unit (1) for producing packages (2) of pourable food products from sealed packs (3) having each a main portion (7) and opposite end portions (8,9) of said main portion (7); each end portion (8,9) comprises a fin (17,18) and the main portion has a pair of flaps (19,20) projecting laterally; unit (1) comprises: - a first movable conveying member (35) which feeds the pack (3) along a forming path (B); and folding means (24) which interact with each said pack (3) along forming path (B) to fold relative first end fin (18) onto said end portion (8) and comprise: a first member (36) movable along forming path (B) together with said conveying member (35) and defining a slot (40) receiving the end fin (18); and a second member (72) movable relative to first member (36) between a first folding position in which it engages slot (40) and a second position in which it leaves free slot (40).

Description

technical field [0001] The present invention relates to a folding unit for the manufacture of foldable packages of pourable food products from associated sealed packs. Background technique [0002] As is known, many food products such as fruit juice, pasteurized or UHT (Ultra High Temperature Treated) milk, wine, ketchup, etc. are sold in packages made of sterilized packaging material. [0003] A typical example of this type of package is the parallelepiped-shaped package for liquid or pourable food, which is called aseptic Tetra Pak (registered trademark), which is made by folding and sealing layered tape packaging material to make aseptic Tetra Pak brick. [0004] The packaging material has a multi-layer structure consisting essentially of a base layer that provides stiffness and strength, and a plurality of layers of heat-sealing plastic material (eg, polyethylene films) covering both sides of the base layer, the base layer may include layers of fibrous material (eg, pap...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65B49/08B65B61/24B65B49/02B65B49/14B65B9/20
CPCB65B61/24B65B9/20B65B49/02B65B49/08B65B49/14
Inventor R.佩德雷蒂M.普拉德里F.里蒙迪
Owner TETRA LAVAL HLDG & FINANCE SA