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Paper cutting method and mechanism of rewinder

A rewinding machine and paper breaking technology, which is applied in the field of rewinding machines, can solve the problems of complex paper breaking mechanism, high manufacturing and assembly precision requirements, and difficulties, so as to reduce production cost and installation difficulty, low manufacturing and assembly accuracy, The effect of eliminating the trimming process

Active Publication Date: 2009-08-12
FOSHAN BAOSUO PAPER MASCH MFG CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the axial length of the paper roll is usually more than 1 meter, that is, the width of the paper is at least 1 meter, it is actually very difficult to ensure that the above strict conditions can be met every time the pressing block presses the paper.
Therefore, the rewinding machine using the existing paper breaking method either cannot ensure that the paper breaks on the same punching line, and has to cut the edge after the paper is broken, resulting in waste of paper, or the paper breaking mechanism is complicated and requires high manufacturing and assembly accuracy. Increased production cost and installation difficulty of rewinder

Method used

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  • Paper cutting method and mechanism of rewinder
  • Paper cutting method and mechanism of rewinder
  • Paper cutting method and mechanism of rewinder

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Embodiment approach

[0011] The working principle of the inventive method is as figure 1 As shown, the paper roll is rotated by three driving rollers of the rewinding machine. One of the driving rollers 1 can be called the upper rewinding roller, and the other driving roller 2 can be called the lower rewinding roller. There is also a driving roller 3 can be called the platen roller. The three drive rollers are driven to rotate by the power mechanism of the rewinder, and maintain the same outer peripheral speed. The three driving rollers rewind the paper 4 into a paper roll 5 with a certain thickness together. Another guide roller 6 sandwiches the paper 4 between the guide roller 6 and the rewinding upper roller 1 to play the role of pulling the paper to run. figure 1 in (including figure 2 ) Each arrow indicates the rotation direction of each roller, the rotation direction of the paper roll, and the running direction of the paper respectively. When the paper is broken, make one of the driving...

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Abstract

The invention provides a paper-breaking method and a paper-breaking mechanism for a rewinder. The paper-breaking method is characterized in that the rotating speed of one drive roller of the rewinder is momentarily higher than the rotating speed of the other two drive rollers so that a paper holder fast rolls towards the direction where three drive rollers are separated from one another, and before the paper holder is completely separated from the three drive rollers, paper at the tail part of the paper holder is broken. The paper-breaking mechanism is essentially characterized in that one drive roller of the rewinder is connected with a sudden acceleration speed changer. The invention has the working principle that the rotating speed of the drive rollers is suddenly changed to break the paper so as to prevent a press block from pressing the paper like the prior art in the process of paper breaking and also avoid the strict condition which is needed to be met when the press block is momentarily contacted with the paper. The invention can easily ensure that the paper at the tail part of the paper holder is broken on the same perforatig line.

Description

technical field [0001] The invention relates to a rewinding machine in paper product processing equipment, in particular to a paper breaking method and a paper breaking mechanism for breaking a paper roll in the rewinding machine. Background technique [0002] When the rewinder produces paper roll products such as toilet paper, every time a paper roll is rewound, the paper must be broken quickly in order to start rewinding another roll. This process is called paper breaking. In the existing technology, the paper breaking method of the rewinding machine is to rotate the paper roll with three driving rollers with the same outer circumferential speed. After rewinding a roll of paper, continue to maintain the speed of the three driving rollers. The pressing block quickly presses the tail of the paper roll, making the paper tense instantly and breaking at the perforated line of the paper. According to different structural types of the rewinding machine, the pressing block may be...

Claims

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Application Information

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IPC IPC(8): B65H19/26
Inventor 罗兆波黎启标
Owner FOSHAN BAOSUO PAPER MASCH MFG CO LTD
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