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Package forming device

A technology for forming equipment and packages, applied in multiple packages, packaging, transport packaging, etc., can solve problems such as incomplete sealing, defective sealing, production errors, etc.

Active Publication Date: 2012-09-05
TETRA LAVAL HLDG & FINANCE SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In some cases, sealed and folded packaging containers exhibited unacceptable production errors due to incomplete sealing and / or forming
These errors, like dents, can be purely aesthetic, but it can also lead to defective seals

Method used

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Examples

Experimental program
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Embodiment Construction

[0016] figure 1 A part 10 of a machine for producing packages from a roll 12 of packaging material is shown. The packaging material is of the type mentioned at the outset, ie a paper core coated with thermoplastic material. From the initially substantially flat roll 12 a sealed tube is formed when passing through this particular part of the machine. The formation of the tube is effected by a number of tube forming devices 14 , 16 and equipment 18 included in the machine 10 . The main task of the tube forming devices 14, 16 is to initiate the forming of the roll 12 into a tube 20 with a lap joint 22 between two mutually opposite edge portions 24 and 26 of said roll, which will not be described in detail here. these devices. The device 18 is arranged to control the twist of the tubular relative to the sealing means 28 for transverse sealing of the tubular. The apparatus 18 is further arranged to complete the forming of the roll by imparting the desired diameter to the tubula...

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PUM

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Abstract

Wrinkles in one end of a packaging container are avoided by using a package forming device for forming packaging containers from a tube (128) of packaging material travelling in a machine direction (MD) by sequentially clamping the tube (128) between pairs of opposing sealing jaws (106, 106') for forming transversal seals, such that a tube segment on a downstream side of a general pair of sealing jaws will belong to a first packaging container and a tube segment on the upstream side of said general pair of sealing jaws will belong to a second packaging container, said device comprising: a leading pair of sealing jaws (106), a leading volume box (108) arranged upstream each leading sealing jaw (106), adapted to shape a leading tube segment (P) during sealing, wherein support means (106') are arranged to support an upstream end of the leading tube segment (P), upstream the upstream end of the leading volume box (P), such as to avoid wrinkles in the upstream end of the leading tube segment (P), and thereby in one end of a leading packaging container (P). To that end the support means are arranged to engage the tube segment before the leading volume box has reached its end position.

Description

technical field [0001] The present invention relates to pack forming apparatus, and more particularly to pack forming apparatus for forming packs from tubes of packaging material. Background technique [0002] There are at least two general techniques that can be followed when forming packaging containers made of packaging materials such as laminates. According to one technique, each package is formed from an individual blank cut from a roll of packaging material, which is formed into an individual packaging container, which in turn is filled with product. According to a second technique, the roll of material is sealed longitudinally to form a tube, and during sealing, the tube is filled with product, which is then sealed transversely and slit to form individual containers. The present invention relates to the second technique. Those skilled in the art will appreciate that the above descriptions represent a rough classification rather than an exhaustive list. To further i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65B9/22B65B51/30
CPCB65B9/2035B65B9/2049B65B9/22
Inventor 弗雷德里克·埃里克松安诺斯·马格努松
Owner TETRA LAVAL HLDG & FINANCE SA