Sheet supply method and sheet supply device

Pending Publication Date: 2021-03-04
ZUIKO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is a method and apparatus for supplying sheets of material. The technical effects of the invention include the ability to join sheets of material quickly and accurately, even when there is a delay in the supply of material to the joining location. This is achieved through a mechanism that joins the sheets together and a control system that ensures the speed of the material from the supply is matched to the speed of the surfaces the material is placed on, so that any excess or deficiency of material is balanced. This invention provides a more efficient and accurate method for supplying sheets of material.

Problems solved by technology

Consequently, in the state where the sheet supply is suspended, the adhesive cannot be moved to the pressing position, which fails to establish the joining.
This causes a problem of the burdensome operation that an operator must guide a leading end of the sheet of a new roll or a standby roll set in the sheet supply apparatus to the line in the downstream location through a predetermined pass line.

Method used

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  • Sheet supply method and sheet supply device
  • Sheet supply method and sheet supply device
  • Sheet supply method and sheet supply device

Examples

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first embodiment

[0022]First, a configuration of a sheet supply apparatus 1 according to a first embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 is a partial cross-sectional front view of the sheet supply apparatus 1. FIG. 2 is a block diagram showing an electric configuration of a controller 80 which controls operations of the sheet supply apparatus 1. Hereinafter, a lateral direction in FIG. 1 is defined as an “X direction”, a vertical direction in FIG. 1 is defined as a “Z direction”, and a direction (i.e., a depth direction of the paper sheet in FIG. 1) perpendicularly intersecting the X and Z directions is defined as a “Y direction”.

[0023]The sheet supply apparatus 1 is an apparatus for sequentially unwinding a sheet S from a first roll R1 of sheet S and a second roll R2 of sheet S. As shown in FIG. 1, the sheet supply apparatus 1 includes a base 50, a support mechanism 10 mounted on the base 50 for supporting the first and second rolls R1, R2, a jo...

second embodiment

[0062]A sheet supply apparatus and a sheet supply method according to a second embodiment of the present invention will be described with reference to FIG. 8. An operation of joining sheets S in the second embodiment is performed concurrently with an ordinary operation where the sheet S is supplied to a line in a downstream location, whereas the operation of joining the sheets S in the first embodiment is performed in the condition where the line is stopped. Hereinafter, only the differences from the first embodiment will be described.

[0063]First, a configuration of a sheet supply apparatus 1A according to the second embodiment will be described. The sheet supply apparatus 1A includes an accumulating mechanism 30 which is configured to counterbalance an excess or a deficiency of the sheet S which is caused by a speed difference between a running speed of the sheet S from a first roll R1 and a supply speed of the sheet S from a drive part 70 in the sheet joining. Specifically, as sho...

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Abstract

A sheet supply method includes an unwinding step of supplying a sheet to a downstream location at a predetermined conveyance speed and a joining step of joining the sheet from a first roll to the sheet of a second roll and cutting the sheet from the first roll at an upstream position of a joining section. In the joining step, the running speed of the sheet run from the first roll is made lower than the predetermined conveyance speed in the unwinding step, and different from a supply speed of the sheet from a supply part in the joining step. An accumulating mechanism decelerates or accelerates the sheet running to counterbalance an excess or a deficiency of the sheet which is caused by a speed difference between the running speed and the supply speed.

Description

TECHNICAL FIELD[0001]The present invention relates to a sheet supply method and a sheet supply apparatus.BACKGROUND ART[0002]As disclosed in Patent Literatures 1 and 2, there have been conventionally known sheet supply apparatus for sequentially unwinding a sheet from a pair of sheet rolls for sheet supply to a line in a downstream location, the sheet supply apparatus including a joining mechanism which joins the sheet from one roll in supply to the sheet of the other roll in standby. The apparatus can continuously supply the sheet to the line in the downstream location by joining the sheet run from the one roll in supply to the sheet of the other roll in standby at a time when the sheet of the one roll in supply decreases and reaches a specific residual length.[0003]The sheet supply apparatus disclosed in Patent Literatures 1 and 2 includes support shafts for respectively supporting a pair of rolls, a joining mechanism having a pressing roll which presses a sheet run from one of th...

Claims

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Application Information

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IPC IPC(8): B65H19/18
CPCB65H19/1852B65H19/14B65H19/1873B65H19/1868B65H2301/4631B65H2301/46172B65H2301/4621B65H19/1821B65H2408/217B65H2557/51B65H2553/41B65H19/181B65H2511/14B65H2220/01
InventorTSUJIMOTO, YOSHIAKI
OwnerZUIKO CORP