Paper unwinding machine with double floating rolls

A double floating roller, paper machine technology, applied in the direction of winding strips, thin material handling, transportation and packaging, can solve the problems of easy to stretch the outer diameter, unstable tension, different, etc., to improve the accuracy, The effect of improving printing performance and reducing scalability

Inactive Publication Date: 2016-10-12
王金根 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a double-floating roll unwinding machine, which can solve the problem of softness, easy stretching, different outer diameters, and non-round rolls of web printing so that the tension is at different levels. steady state problem

Method used

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  • Paper unwinding machine with double floating rolls
  • Paper unwinding machine with double floating rolls
  • Paper unwinding machine with double floating rolls

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Embodiment Construction

[0014] The present invention will be described in further detail below in conjunction with accompanying drawing embodiment:

[0015] figure 1 , figure 2 , image 3 The double-floating roller unwinding machine shown includes an unwinding unit, which has an unwinding roller 2 mounted on the unwinding frame 1 and an unwinding drive device arranged on one side of the unwinding roller 2 The unwinding belt 3 driven by the set between the driving pulley 6 and the passive pulley 5, the unwinding driving device has a motor 7 controlled by a frequency converter, and the output shaft of the motor 7 is fixedly connected with the driving pulley 6. The paper output channel behind the unit is provided with a dust collector 4, and two tension disturbance absorbing devices are arranged in turn on the paper output channel after the dust collector 4, and the first tension disturbance absorbing device is formed by a first extension spring 8 connected to it. The first swing rod 10 and the firs...

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Abstract

The invention discloses a paper unwinding machine with double floating rolls, and belongs to the technical field of printing machinery. The paper unwinding machine comprises an unwinding unit, wherein the unwinding unit is provided with an unwinding roll installed on an unwinding rack and an unwinding belt arranged at one side of the unwinding roll, and connected and driven through an unwinding drive device, and the unwinding drive device is provided with a motor controlled by a variable-frequency speed adjustor. The paper unwinding machine is characterized in that at least two tension disturbance absorption devices are sequentially arranged on a paper output channel of the unwinding unit; each tension disturbance absorption device is composed of one floating roll installed on a swinging rod connected with a pull spring; a sensor for detecting a rotating position of the corresponding swinging rod is arranged on the tension disturbance absorption device located at the end; and an output end of the sensor is electrically connected with an input end of the variable-frequency speed adjustor. According to the paper unwinding machine disclosed by the invention, the problems that a material is mellow and easy to stretch, and a tension is in an instable state in web-fed printing due to different outer diameters and low roundness of paper reels can be solved.

Description

technical field [0001] The invention relates to the technical field of printing machinery, in particular to an unwinding machine for a soft and easy-stretch web printing machine. Background technique [0002] In the printing industry, for the printing of soft and easy-to-stretch roll paper, a certain paper feeding force must be maintained before the paper tape enters the printing device, and the tension of the paper tape must be constant and appropriate during the printing process. When the tension of the paper tape is too high, the printing dots will be deformed to a certain extent, the paper tape will be wrinkled in the longitudinal direction, and even fractured in the transverse direction. The existing unwinding technology usually adopts an automatic tension control system with a floating roller, which uses an angle sensor to sense the change in the upper and lower positions of the floating roller, and changes the length of the paper through automatic control to achieve a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65H16/00B65H23/26B65H23/185
CPCB65H16/00B65H23/1825B65H23/185B65H23/26B65H2701/19B65H2801/03Y02P70/10
Inventor 王金根谢韬
Owner 王金根
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