Wound product and its winding method

A product and winding technology, which is applied in the direction of winding strips, transportation and packaging, and thin material processing, etc., can solve problems such as winding displacement, core damage, and reduction of commercial value

Inactive Publication Date: 2002-12-11
TAIKA INDS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, during the stacking process after winding, the winding core itself is damaged due to the pressing force, or if it is left at high temperature for a long time, winding displacement occurs in the axial direction of the winding core, reducing its commercial value

Method used

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  • Wound product and its winding method
  • Wound product and its winding method

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Embodiment Construction

[0055] The specific device of the present invention will be introduced below according to the accompanying drawings.

[0056] figure 1 and figure 2 To embody the rolled product 1 of the present invention. as image 3 and Figure 4As shown, the rolled product 1 is a long strip of plastic sheet or film 4 wound on a core by bending a flat cardboard 2 of cardboard, rolling, and forming a gap 3 between the side edges, whereby its end 4a is inserted through the gap 3 inside the bent cardboard 2 .

[0057] as image 3 and Figure 4 As shown, at the beginning of winding into the rolled product 1, the tapered end 4a of the rolled sheet or film 4 placed on the winder drum 6 is placed on the outer peripheral surface of the winder drum 5. Thereafter, a flat sheet of cardboard having a length B, with a gap 3 between the side edges when wound around the roll 5, is provided, inside the sheet or film 4, with slightly bent ends so as to be in contact with the sides of the roll 5. exte...

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Abstract

An improved roll-to-roll product that rolls long strips of film or sheet onto cores that can be scrapped without effort when ordinary paper tubes are not used. The core is formed by bending a flat sheet of cardboard into a tube. The side edges of the panels can be split, butted or overlapped. The sides may or may not be connected together. The end of the film is stuck on the side edge of the flat plate. This device allows the film to be used to the last inch under the condition of applying a certain tension and without damaging the core or winding displacement. Ends can be fitted with caps to improve core shape retention.

Description

technical field [0001] The present invention relates to a roll of stretched plastic film for packaging, food packaging plastic film, or plastic sheet for packaging containers formed around a tubular member formed around a flat paperboard instead of a paper tube and a method of producing the roll. Background technique [0002] Plastic film or sheet for packaging, such as tensioned plastic film and food packaging plastic film used to prevent damage in packing boxes, is 300mm to 500mm wide and generally hundreds of meters long, so in order to wind it into a roll Products, usually use a high-strength paper tube as the core. [0003] Used paper tubes piled up in offices where rolls were heavily used. Because these paper tubes have great strength, they will not break when they are rolled, and it is impossible to step on them with your feet. Therefore, these paper tubes have a large stacking volume, are difficult to scrap, and are not easy to recycle. [0004] In order to solve ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65H75/02B65H18/28B65H75/22B65H75/28
CPCB65H18/28B65H75/28B65H2301/414325B65H2402/412B65H2515/12B65H2701/1752B65H2701/5112B65H75/2209B65H75/02
Inventor 祓川芳久祓川友宏
Owner TAIKA INDS
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