Packaging machine and method for producing packages from a sheet of packaging material

A technology of packaging materials and packaging machines, applied in the direction of packaging material feeding devices, packaging machines, packaging, etc., can solve problems such as damage to packaging production

CN107922072AActive Publication Date: 2018-04-17TETRA LAVAL HLDG & FINANCE SA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2018-04-17

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Abstract

A packaging machine for producing packages (2) from a sheet of packaging material (3), said packaging material (3) comprising a plurality of marks (20) associated with corresponding portions (21) of said packaging material (3), said packaging machine comprising a working unit (30) having a track arrangement (31) and a plurality of transporting elements (32), each transporting element (32) supporting a tool (40) arranged for carrying out a working operation on said packaging material (3), said transporting elements (32) being movable on said track arrangement (31) independently from each other,each of said transporting elements (32) comprising a sensor device (33) arranged for detecting a corresponding mark (20) and generating a signal indicating the position of said mark (20) with respectto said transporting element (32), said packaging machine further comprising a control unit arranged to control the position of said transporting element (32) along said track arrangement (31) on thebasis of said signal; a method for producing packages (2) from a sheet of packaging material (3) is also disclosed.
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Description

technical field

[0001] The invention relates to a packaging machine for producing packages from sheets of packaging material. The invention also relates to a method for producing a package from a sheet of packaging material. Background technique

[0002] It is known that many food products such as fruit juices, pasteurized or UHT (Ultra High Temperature Treated) milk, wine, tomato paste, etc. are sold in packages made of aseptic packaging materials.

[0003] A typical example of this type of packaging is the parallelepiped-shaped packaging for liquid or pourable food products known as Tetra Brik Aseptic (registered trademark), which is made by folding and sealing laminated strip packaging material.

[0004] The packaging material has a multi-layer structure comprising essentially: a base layer for stiffness and strength, which may include a layer of fibrous material (eg paper) or a layer of mineral-filled polypropylene material; and two layers covering the base layer. Mult...

Examples

Embodiment Construction

[0026] refer to Figure 1 to Figure 6 , shows a packaging machine 1 for producing sealed packages 2 containing pourable food products from packaging material 3 unwound from a reel (not shown) and fed along an advance path P , such as pasteurized or UHT milk, juice, wine, etc. When the packaging material is unwound from the reel it has the shape of a flat sheet 100 .

[0027] The sheet 100 is fed along an advancement path P through a sterilization unit (not shown), which in one embodiment comprises a sterilization bath, by known guide elements, rollers or similar devices (not shown).

[0028] In another embodiment (not shown), the sterilization unit may comprise other sterilization equipment, such as a sterilization equipment for irradiating the packaging material 3 with a low-voltage electron beam.

[0029] The sheet 100 is fed through the chamber 4 along the advancing path P (e.g. figure 1 Indicated by the dotted line in ), sheet 100 is kept in a sterile air environment in...