SIPLACE 80 F4_EN - 第22页

21 Description The component changeov er tables can be s et up and checke d at an external SIPLACE set-up station quickly and witho ut mac hine idle time. The costs for production in- volving a great variety of c ompo- n…

Description

The bar code scanner enables a

speedy and reliable check of set-

up and refill. To this end the bar

codes of the tracks (on the track

scale on the component table) and

the loaded components assigned

to the tracks (bar code labels on

tapes, Bulk Cases, etc.) are read in

with a hand scanner. An audible

and optical signal acknowledges a

successful reading operation. If the

label is damaged the bar can also

be entered at the keyboard.

The allocation of the components

to their respective track is de-

scribed in the set-up data. An error

message is displayed if the data

received from the bar code scan-

ner does not conform with the set-

up data.

If the set-up check is switched on,

it becomes a mandatory step in

the set-up process. If it is

switched off the set-up check is

optional.

Component Supply:

Component Bar Code Scanner for Set-Up and Refill Check

(Option)

Technical Data

Connection Station computer

Data input Bar code scanner or keyboard

Max. number of characters 40

Restrictions

Bar codes beginning with number 1 or 2

or with less than 5 characters

Number of bar codes 6 per component

Number of filters

to extract relevant data 1 per bar code

Preset code types

Code 39 (standard or full ASCII),

Code 2 from 5 interleaved and normal,

Code 128, UPC/EAN/JAN codes

(more on request)

The scanner checks the corresponding track and

the components

Component

Control

Set-Up File

Track Bar Code

Scanner

Component

Bar Code

Description

The component changeover tables

can be set up and checked at an

external SIPLACE set-up station

quickly and without machine idle

time. The costs for production in-

volving a great variety of compo-

nents are greatly reduced. During

the bar code check outside the

machine, 10 minutes of machine

standstill are eliminated per set-up

change. All current data from up to

4 lines are accessible over a link to

the line computer via a Local Area

Network (LAN).

In the case of the SIPLACE 80 F

a component changeover table is

part of the standard equipment.

Additional changeover tables are

required for optimal use of the set-

up station.

Component Supply:

SIPLACE External Set-Up Station (Option)

Technical Data

Operating system Windows NT 4.0

Set-up check Per bar code scanner

Component table change Time expanded: 2 min / table side

Example for SIPLACE set-up station

Line

LAN

Line Computer

PC for External set-up

LAN Scanner

Serial Interface

Tape Reel

with

Bar Code

Changeover

Table

Component Changeover Tables

Description

With the SIPLACE 80 F

a number

of vision modules with a central vi-

sion system to evaluate the re-

corded image data ensure a high

placement accuracy.

At the machine’s X-gantry the PCB

vision module finds position off-

sets on the part of the PCB in the

conveyor system. This module is

also required to measure the ma-

chine and/or the feeders on one

side of the table. This vision mod-

ule consists of a single CCD cam-

era with integrated lighting and op-

tics.

The offsets in the position of the

PCBs are determined with the

help of at least two but generally

three reference fiducial marks on

the PCB. When the PCB arrives

the gantry with its PCB vision

module moves to the programmed

mark position. The vision system

compares the recorded video im-

age with the sample stored in the

PCB description.

With the help of the correlation

principle the vision system can de-

termine the correct position even

when fiducial marks are incom-

plete or damaged (actual struc-

tures). It does so by making com-

parisons with programmed

nominal structures. The mark con-

figurations are not fixed; they can

be taught without restriction.

Additional functions of the PCB vi-

sion module are recognition of the

position of the feeders and ce-

ramic substrate (optional) and re-

cording of the machine data in-

cluding mapping.

In addition, the bad board recogni-

tion unit is moved over “ink spots”

with the aid of the PCB vision

module.

Vision Sensor Technology:

PCB Vision Module

Technical Data

Reference marks

Local marks

Library memory

Recognition of poor panels

up to 3 (subpanels and multiple panels)

up to 2 per component

(may be of different type)

up to 255 types of reference marks

per subpanel

Image processing

Correlation principle based on

gray values

Illumination Front light

Recognition time

mark/ink spot 0.8 s

Camera’s field of view 5.7 x 5.7 mm

Correlation Principle

Target Low

Structure Correlation

Actual High

Structure Correlation