Specification SIPLACE CA-Series2011版 - 第28页

28 PCB Conveyor Single Conveyor Technical Data for the Single Conveyor S tationary conveyor side Right or left PCB format S tandard (len gth x wid th) Wide board configuration 21" conveyor wid th configuration Long …

PCB Conveyor

Single Conveyor

Description

For placement, the PCB is

clamped from below. The

distance between the top of

the PCB and the placement

head thus remains un-

changed for each PCB, and

is not dependent on the

thickness of the PCB. The

placement rate is thus inde-

pendent of the PCB thick-

ness.

Since the distance between

the PCB surface and the

PCB camera remains the

same, the PCB camera is al-

ways focussed on the PCB

surface with the same level

of sharpness.

The PCB fiducial contours

are optimally mapped on the

CCD chip of the PCB cam-

era.

The inline PCB conveyor

system quickly adapts to a

wide range of PCB widths.

The setting is made using the

placement program or via

the station software menu.

The width of the PCB con-

veyor is monitored by an in-

tegral control circuit.

The machine height can be

modified, thus allowing the

machines to be integrated

into lines with a transport

height of 830, 900, 930 or

950 mm.

-The communication be-

tween the PCB conveyors of

the individual machines is via

a SMEMA interface (optional

Siemens interface).

The fixed transport side can

be located on the left or right

for both the dual conveyor

and the single conveyor.

With this conveyor, the fixed

side can be easily switched

from right to left or vice versa.

Movement and clamping of

the PCBs are monitored. If

the board has reached the

placement area and passed

the light barrier, it is braked.

A laser light barrier deter-

mines the position of the

board. As soon as the board

has reached its target posi-

tion, the conveyor belt is

stopped and the board is

clamped from below. The

placement process then

starts immediately.

Placement area 1

Placement area 2

Output conveyor

Intermediate conveyor

Input conveyor

PCB Conveyor

Single Conveyor

Technical Data for the Single Conveyor

Stationary conveyor side Right or left

PCB format

Standard (length x width)

Wide board configuration

21" conveyor width configuration

Long board option

Long board option and Wide board

configuration

50 mm x 50 mm to 450 mm x 460 mm

50 mm x 50 mm to 450 mm x 508 mm

50 mm x 50 mm to 450 mm x 533 mm

50 mm x 80 mm to 610 mm x 460 mm

50 mm x 80 mm to 610 mm x 508 mm

PCB thickness

Standard

0.3 to mm 4.5 mm (± 0.2 mm)

(standard, thicker PCBs on request)

Vacuum tooling on request

Thin PCBs on a carrier

Board warpage see page 31

PCB weight max. 3 kg

Clearance on PCB underside

Standard

Option

25 mm ± 0.2 mm

max. 40 mm ± 0.2 mm

Component-free PCB handling edge 3 mm

PCB changeover time < 2.5 s

PCB positioning accuracy ± 0.5 mm

PCB transport height 830mm ± 15mm (standard)

900mm ± 15mm (optional)

930mm ± 15mm (optional)

950mm ± 15mm (SMEMA: optional)

Type of interface SMEMA / Siemens

Inkspot detection on the PCB possible

Automatic width adjustment possible

a) With PCB widths > 450 mm make sure that the peripheral modules are also able to process these widths.

PCB Conveyor

Flexible Dual Conveyor

Description

As a result of reduced sec-

ondary processing times and

in conjunction with the opti-

mum placement program,

the PCB dual conveyor can

significantly enhance

throughput times. It allows

two PCBs to be carried si-

multaneously (synchronous-

ly) or alternately

(asynchronously) through

the placement machine.

In asynchronous mode, only

one PCB is processed in

each conveyor lane. At the

same time, another PCB in

the second conveyor lane is

moved into the placement

position. This saves the full

conveying time of one PCB,

thus considerably increasing

performance, particularly for

PCBs with a short cycle time.

The placement process

starts as soon as one PCB is

transported into the process-

ing area.

In synchronous mode-, two

PCBs are moved into the

placement position at the

same time. They are pro-

cessed as a common panel.

This facilitates the process-

ing of a board upper and un-

derside in one line. The

amount of nonproductive

secondary processing time is

reduced, as two boards are

always transported at the

same time.

Asynchronous conveyor mode

Synchronous conveyor mode