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Device and method for forming a stack of sheets on a delivery surface

A sheet and equipment technology, applied in the field of sheet lamination, can solve problems such as difficulty in moving, inability to flatly abut, sheet wrinkling, etc.

Inactive Publication Date: 2010-06-23
OCE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The result is a sheet that is severely buckled, moves with difficulty or not at all, and does not sit flat against the baffle

Method used

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  • Device and method for forming a stack of sheets on a delivery surface
  • Device and method for forming a stack of sheets on a delivery surface
  • Device and method for forming a stack of sheets on a delivery surface

Examples

Experimental program
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Effect test

Embodiment Construction

[0023] figure 1 Problems that may arise when stretching a flake curled up during the collection process in order to enable possible subsequent processing or removal from the stack are shown. As a result of stretching or nudging the sheets placed on top of the stack, it is possible for one or more sheets to rest incorrectly against the baffle and, after multiple impacts, may even be damaged changing their mass and / or fail to bind together with other sheets in the stack that have curled, for example, from bending of the paper path in the machine, from moisture, or from temperature changes. This phenomenon is undesirable. The problem is especially pronounced in systems with large volumes, high output speeds, and multiple substrates. Post-processing stations must always be able to work faster and handle an ever-increasing variety of materials and, in practice, must be able to switch from very thin and brittle paper to thick and rigid paper.

[0024] figure 2 is a side view of...

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PUM

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Abstract

A method and device for forming a stack (10) of sheets, comprising a delivery surface, and also a stop and a pusher element (12) movable in the direction of the stop, the device also comprising a guide (13,14) which can occupy a first and a second position, in which first position a sheet can be received in the guide (13,14), and a second position in which a guide path (20) is formed, wherein thefreedom of movement of the sheet edge (11) in a direction substantially perpendicular to the pushing direction and substantially perpendicular to the delivery surface of the preceding sheet is substantially limited.

Description

technical field [0001] The invention relates to a method for forming a stack of sheets on a conveying surface, comprising placing a sheet and pushing an edge of the sheet with a pusher element to press the sheet against a stop. The invention also relates to a device for forming a laminate with the method according to the invention, comprising a conveying surface, a stop, and a push element movable in the direction of the stop. Background technique [0002] A method and a device according to the preamble are known from US Pat. No. 5,054,766. A device of this type can be placed wherever sheets need to be collected and must be arranged in a flat stack for subsequent processing, for example for binding, perforating or sewing. One known field of application is the collection of printed sheets in copiers or printers. The collection stations associated with these machines must be able to operate reliably at copier or printer speeds, which can be very high, such as over 60 or even...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65H31/36B65H29/46B65H29/52
CPCB65H2801/06B65H31/36
Inventor F·C·P·范奥普斯塔
Owner OCE TECH
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