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WECON HMI and PLC application in Tissue Machine

1IntroductionTissue Machine is used for cutting the paper materials according tothe fixed length and fold it.can be a production line with packing

machine ,make a small bags of paper and other producs.

Fuzhou Wecon Co.Ltd. Fujian Province China. 1

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Pull part and cut part of Tissue Machine

The follow picture is the control cabinet of Tissue Machine,that use

the WECON Lxis-20mr/mt plc and 7-inch HMI.

PLC-SE

2.Precautions(1)There are two proximity switch to provide signal and to calculate the

length of tissue in each lap.as shown in figure 3, one is for calculation of the

length of tissue length,the other is for count.(2)Use an encoder signal to complete synchronization with previous

machine, need to figure out the speed of the servo in a short time.

(3)To update the average length of tissue each lap.

(4)The reduction ratio of the servo and cutter axis is 1/6reduction ratio is e

xternal manually modify,like Blue gear in the picture below.

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Internal structure of issue machine

2component1The following picture is operation screen.

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2PLC use the command of the SPA in the Tissue Machine.The following picture

shows computing of follow speed.

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3ConclusionError of actual length and measured length is between 1-2mm, pass the

test,it meet manufacturers requirements and have higher accuracy than the

original system.HMI replace text HMI,more flexible and operable.

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