System for informing paper shift in apparatus for producing corr

Details System for informing paper shift in apparatus for producing corr System for informing paper shift in apparatus for producing corr

1991-07-01

1994-06-28

Nguyen, Long T.

Boots, shoes, and leggings

156367, 242 57, G06F 1546, B32B 3100, B65H 1900

Patent

active

053253060

ABSTRACT:
To determine a paper splice time when the present web is spliced to a next web for the purpose of a so-called lot shift (or a paper shift) in an apparatus for producing corrugated paper boards, not only a length of each core but also a length of each web have been hitherto measured. In view of the current circumstance that a measuring operation is accompanied by various errors and an order is often given with a small lot in size, determination of a paper shift time is made at an operator's discretion which depends on his skill. In practice, there often arises a malfunction that the operator erroneously determines the time when a paper shifting operation is to be performed. To obviate the foregoing malfunction, the present invention provides a system for informing a paper shift during a production controlling operation for an apparatus for producing corrugated paper boards wherein a remaining time till the time when a paper shifting operation is performed can be assured by a time enough long to accomplish the paper shifting operation regardless of a lot size and moreover a warning for informing the time when the paper shifting operation is started as well as a warning at each step during production of corrugated paper boards can be instructed.

REFERENCES:
patent: 4174237 (1979-11-01), Hemming, Jr. et al.
patent: 4268341 (1981-05-01), Huhne
patent: 4284445 (1981-08-01), Shimizu
patent: 4576663 (1986-03-01), Bory
patent: 4631682 (1986-12-01), Ng et al.
patent: 5150302 (1992-09-01), Adachi et al.

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