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Mandrel for forming liquid paper can

A paper can and liquid technology, applied in the field of forming mandrels of liquid paper cans, can solve the problems of environmental pollution, consumption of iron and aluminum, etc., and achieve the effects of reducing production costs, reducing use and waste, and simplifying production and processing

Inactive Publication Date: 2010-10-27
乐美机械(宁波)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, using tinplate to make the can body and bottom cover of the can, and using aluminum to make the easy-open lid will consume a lot of iron and aluminum, and will bring certain environmental pollution

Method used

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  • Mandrel for forming liquid paper can
  • Mandrel for forming liquid paper can
  • Mandrel for forming liquid paper can

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Experimental program
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Embodiment Construction

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0018] As shown in the figure, a forming mandrel of a liquid paper tank includes a main body 1 coated with Teflon on the outer surface and provided with a demoulding taper and a fixed end 2 integrally connected to the lower end of the main body 1, and the outer surface of the fixed end 2 A positioning plane 21 is provided on the surface, and the outer surface of the main body 1 is provided with concave air extraction grooves 3 evenly distributed in a mesh shape and a sealing surface 11 for side sealing, and the main body 1 is provided with an axial through hole 4, The air extraction groove 3 is provided with an air extraction hole 31 communicating with the axial through hole 4, and the main body 1 is provided with two axial water passages 5, and the upper end surface of the main body 1 is provided with a pipe connecting the two water passages 5...

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Abstract

The invention discloses a mandrel for forming a liquid paper can. The mandrel is characterized by comprising a main body of which the external surface is coated with a high-temperature-resistant material and a fixed end which is integrally connected to the lower end of the main body, wherein the external surface of the main body is provided with an inward concave air exhaust groove and a sealing surface for sealing a side edge; an axial through hole is formed in the main body; the air exhaust groove is provided with an air exhaust hole which is communicated with the axial through hole; and a cooling device is arranged in the main body. The mandrel has the advantages that: a paper-plastic composite material with an aluminum foil layer can be wound into a paper tube through the mandrel, and a top cover, a bottom cover and the paper tube are heated, pressurized and sealed by subsequent processing to form the liquid paper can capable of replacing a pop can, so that the usage and wastage of metal resources are reduced, the production cost and environmental pollution are also reduced, and production and processing are simple, convenient and quick; and the cooling device is arranged in the main body, so that the mandrel can keep constant temperature, and PE on the surface of the paper-plastic composite material is prevented from melting due to overhigh temperature of the mandrel.

Description

technical field [0001] The invention relates to a processing device for a liquid paper can, in particular to a forming mandrel for a liquid paper can. Background technique [0002] The traditional sealed packaging of liquid beverages basically uses tinplate cans to prevent bacteria from entering the beverage and cause the beverage to deteriorate, and to prevent ultraviolet radiation from decomposing vitamins in the beverage. However, using tinplate to make the can body and bottom cover of the can, and using aluminum to make the easy-open lid will consume a large amount of iron and aluminum, and will bring certain environmental pollution. [0003] In order to reduce the use and waste of metal resources, reduce production costs and environmental pollution, and advocate the concept of environmental protection and low carbon in the current society, paper-plastic composite materials with aluminum foil layers can also be used instead of tinplate to make packaging paper cans. Pape...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B31C1/00
Inventor 苏世彦
Owner 乐美机械(宁波)有限公司
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