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Doctor blade holder systems

A blade holder, scraper technology, applied in the direction of scraper, textile and papermaking, papermaking, etc., can solve the problems of inconsistent pressure, damage to the blade holder, etc.

Active Publication Date: 2016-08-17
KADANT INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, however, such adjustments would jeopardize other parts of the doctor blade holder, such as where the doctor blade holder is attached to the blade holder mounting plate or the doctor back (doctor back), and could further result in inconsistencies in pressure on

Method used

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  • Doctor blade holder systems
  • Doctor blade holder systems
  • Doctor blade holder systems

Examples

Experimental program
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Embodiment Construction

[0022] The present invention provides an improved doctor blade cartridge that can be used to crepe tissue paper from a dryer roll in a tissue making machine (eg, Yankee dryer). The doctor blade cartridge of the present invention provides precise adjustment features that allow for more even loading of the creping blades to the Yankee surface. Additionally, embodiments of the present invention will help protect Yankee surfaces by minimizing blade chatter and vibration. In addition to tissue converting applications, the doctor blade cartridge of the present invention can be used in many other processes where product or contaminants need to be removed or scraped off rotating rolls, belts or other moving surfaces.

[0023] refer to figure 1 -5. According to the embodiment, the present invention provides an improved doctor blade holder assembly, including a doctor blade support structure 3 , a forming plate 4 and a support blade 5 . The doctor blade support structure 3 holds the d...

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PUM

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Abstract

The invention provides a doctor blade holder system that includes a doctor blade support structure, an adjustment profiling plate, and a series of adjustment mechanisms. The doctor blade support structure includes an elongated slot for receiving a doctor blade and a separate elongated slot to house mounting hardware. The adjustable profiling plate causes pressure to be applied to the working blade in a continuous manner along the length of the working blade, wherein the profiling plate is mounted to a holder mounting plate with a series of pairs of mounting structures allowing unconstrained flexure, or rotation, of the profiling plate with respect to holder mounting plate around two axes. The series of adjustment mechanisms attach to the holder mounting plate and acting on the profiling plate, wherein the adjustment mechanisms are capable of displacing the profiling plate in a bi-directional manner.

Description

[0001] priority [0002] This application claims priority to US Provisional Application Serial No. 61 / 900,727, filed November 6, 2013, which is hereby incorporated by reference in its entirety and substance. Background technique [0003] The present invention relates generally to doctor blade cartridges, and in particular to doctor blade cartridges usable with roll surfaces where the roll surface is uneven. [0004] For example, certain types of rolls used in the manufacture of tissue paper, such as Yankee rolls, can have very large diameters that are not uniform along the longitudinal direction of the roll. Certain such rolls, for example, may have a larger diameter at the center of the roll than at the ends of the roll. Transfer of the intermediate tissue product to the roll can be facilitated by design, but difficulties arise when trying to provide a doctor blade that matches the surface of the roll. [0005] Traditionally, adjustment of the position of the doctor blade a...

Claims

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Application Information

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IPC IPC(8): D21G3/00
CPCB31F1/145D21G3/005D21G3/04
Inventor A·布劳恩斯D·黎曼R·约翰逊
Owner KADANT INC