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Rewinding machine and winding method

A technology of a rewinder and a winding core, applied in the field of round materials of web materials, can solve the problems of difficult production speed, loss of reliability of the rewinder, etc., and achieve the effect of less wear and tear

Active Publication Date: 2012-10-31
FABIO PERINI SPA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the reduced control of the web material in the phase change, the winder loses a large part of its reliability and it is more difficult to achieve high production speeds

Method used

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  • Rewinding machine and winding method
  • Rewinding machine and winding method
  • Rewinding machine and winding method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] First refer to Figures 1A-1C , in a possible implementation manner, the rewinding machine includes a first winding roller 1 , a second winding roller 3 and a third winding roller 5 . The first winding roll 1 and the second winding roll 3 form between them a winding nip 7 through which the web material N is fed to wind the web material N between the three Rolls 1, 3, 5 are formed into a log L by being wound in a winding frame defined by a set of rollers 1, 3, and 5. The third winding roller is supported by the arm 5A so that said third winding roller can be gradually raised and allows the diameter of the log L formed in the winding stand 1 , 3 , 5 to be increased. The operation of peripheral winders based on the use of winding rolls of the type described above is known in the art and need not be described in detail here.

[0043] A channel 9 is formed between the cylindrical surface of the first winding roller 1 and the support surface 11 of the winding core A (the win...

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PUM

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Abstract

The rewinding machine comprises: a first winding roller (1), around which the web material (N) is guided, and defining at least in part a winding cradle; a sup not port surface (11) of the winding cores (A), arranged to receive a winding core and to convey it toward the winding cradle, the support surface defining with the first wind not ing roller (1) a feed channel (9) of winding cores (A); a severing member (17) of the web material, which can be inserted in the channel to sever the web material, the sev not ering member interacting with the web material to cause severing thereof; a motor (19) for controlling the severing member, the motor controlling the severing member modifying the speed of the severing member when it is positioned inside the channel (9)

Description

technical field [0001] The present invention relates to a rewinding machine for producing a log of web material wound on a tubular winding core. [0002] The invention also relates to a new winding method for producing a log of web material around a tubular winding core. Background technique [0003] In the manufacture of logs of wound web material, such as toilet paper rolls, kitchen napkin rolls, or the like, first large diameter rolls called master rolls are formed, and the web material is then A log that is unwound from a drum of large diameter and rewound into a log of small diameter dimensions corresponding to the dimensions of the final product for sale, the axial length of which is equal to that of the drum intended for end use several times the axial dimension. These logs are then cut to form intended-to-use rolls, which are packaged. [0004] Rewinding machines, especially in the field of tissue paper processing, for the production of toilet paper rolls, kitchen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65H19/26B65H19/22
CPCB65H19/2269B65H2513/10B65H19/267B65H2220/02
Inventor M·杰利R·马达莱尼F·蒙塔格纳尼R·莫雷利
Owner FABIO PERINI SPA