Flexo Blade Analysis

8/10/2019 Flexo Blade Analysis

1/6

II XO

n lax

Tanl}Etnt n

of

Doc B

CONT CT

NGLE WE R ND

R T

MWUREMENT

N LYSIS


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LEXOBL DE N LYSIS

The contact angle

of

the

doctor blade a

nd

the anilox

cylinder is describ

ed

here. Th

following microscope photos

show the contact angle of the

samples sent for anaylsis.

T

i

A

MICROSCOPE PICTURE

LOC TIONS

ILEXO ONT T NGLEDEIINITION

Caution Installation or r

emo

val doctor, contain

me

ill ers, shims or back-up blades represent a cut hazard s

hnds may come in contact with sharp edges. Use

of

cu

resistant gloves is recomm

end

ed. oll

ow

all plant safety

rules for handling and disposal of bl

d

es.

Web

down

side

of C.

I

press

I

Plastic: 0.050 - 0.125

In Ilexo, a steel back-up blade

gives spring support to plastic doctor

blade.

Shims are needed where the inker

clamp bar was designed for stee l

blades, ut thicker plastic or composite

blades are being used .

Shims le t you clamp the thicker

blade without distortion or squeezing it

out of the holder.

Shim thickness should at least eq ual

blade thickness.

illers are needed when the clamp

bar, or the inker itself), was m de with

an undercut or slot to accept thick

plastic blades. When using

a

thin

composite or steel blade, say .0 10

thick, in an

090

slot, a filler is

needed. The inker must be initially set

slightly closer to the anilox than it

would with

a

thicker blade.

A filler on the underside of the

blade should be used only when it is

necessary to use a thick containment

blade with a thin doc tor blade, or if

moving the inker a little closer to the

anilox to use two thin blades) in not

practical.

Use

wherever possible to reduceparticle trapping

anilox

sco

ring, andto save money. Make1/8 longer

thandoctorif inkerpermits

Web-travels

up side of

central

impression

flexo press

O TOR BL DE TERMINOLOGY

lOR ILEXO

INICERS

Composite:

0.011 - 0.040

FILLERS

B CKUP BL DES

PES

Metal:

0.004 - 0.012

SHIMS

\


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Less

than

Not

OK

b d

\ I ph I/ d\ P -lip


4/6

MI ROS OPE PIcrURE N LYSIS S MPLE

ompany ame

Dare

Qg SMnph = _

oth

ldentifiIH 23 fa

Side Two

ontact

ngle

is

6

D Sample

Center

ontact

Anyle

JI.Or

Sample

Side

ne

ontact

Angl

is Jl f2

5 mple


5/6

LLISON

SYSTEMS GETS THE EDGE,

MICROSCOPE PlcrURE N LYSIS S MPLE

a l f ~

~ f f a f

Right

SIde

ContactAngle

9.0

fS ,

Contact ngle

is

t5. O

LeftSide

ont ct

8.6e.

omp ny Nam X

Date J

Test Pi

Samp

12

Other entifier

R

t ~


6/6

FORCE

Ex

cessive

\\

\1 1

on

the

cio

ctot

IJ/

,) /c usu

Jll

y tnc.in s

th.it

tnn much

t I

CC is being dpplic

c

to thc

bl.ulc,

The

picture. illustt.in :

the \ \ \ J

on

1 cto

ctot

IJI,1c c :

The tip the

blade that actually

contacts the cylinder

is referr

ed

to

as

the

flat

of

the blade. The

picture at left

illustrates the flat

All measurements are in inche

The contact angle the doctor

black:

and the

anik::

cylinc el is closcribocl bolow. The microscope

photos ale examples sample blados that we have

analvLcc t contact

Tf1C

chert bclov contains sample wear calculations:

Wear Celculeiions

Sample Original Width

Leftside enter

Side Right Side

1 2 7555 2 7480 2 7500 2 75

Wear

75 55

00055

2

2 761 2 7525 2 7555 2 757

Wear

85 55

4

Sample flat measurements are shown in the table

below

:

Flat

Measurements

Sample

Left

Side

enter

Side

Right

Side

Inal ev

Origin I

octor lld

i

Rig

1 21

25 0 22

2

32

3 00029

All measurements are in inches

Systems orporation

LEADING

THE

W Y

DOCTOR

L DE INNOVATION SINCE

968

220 Adams Street Riverside

NJ

08075

Tel: 856 461 9111 Fax : 856 461 9373 Toll Free 877 461 9111

Website: www.allisonblades.com

Flexo Blade Analysis

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