Specification-SIPLACE-S25HM-eng - 第11页

9 Description The 6-Nozzle pla cement head operates on the Col lect & Place principle. The cycle time of the 6-Nozzle Collect & Pla ce Head – and thus the real achievable performa nce – depends on the dimens ions…

12-Nozzle Collect & Place Head for High Speed Placement

Component Pick-Up/

Placement

Segment

Removal

Point

Turning to

the Placement

Position

Component

Vision

Description

The 12-Nozzle placement head

operates on the Collect & Place

principle. In contrast to classic chip

shooters, the 12 vacuum nozzles

of the SIPLACE Collect & Place

head rotate around a horizontal

axis. This does not only save

space:

Due to the small diameter com-

pared to chip shooters, the cen-

trifugal forces are significantly

lower. The results are high-speed,

reliable placement and the same

cycle time for all components.

Components are picked up and

placed reliably with the aid of vac-

uum followed by a gentle air kiss.

A number of vacuum tests moni-

tors if the component has been

picked up and placed accurately.

Various control and self-learning

functions further enhance the de-

pendability of the system:

§ The optical recognition of feeder

positions records the exact posi-

tion of the feeder table.

§ A camera on the placement head

(component vision module) de-

termines the exact position of

each component on the nozzle.

§ For every feeder the pick-up

offsets are averaged over the

last ten pick-ups. This enables

the head to dial-in on the pre-

cise pick point for each compo-

nent.

§ In addition, the package form is

also checked. If the actual geo-

metric dimensions of the com-

ponent do not correspond to

those programmed, the compo-

nent is rejected.

§ Components rejected by the vi-

sion system are dumped into a

bin, reject feeder or matrix tray.

Any rejected component gets

automatically placed during a

repair run.

§ Warpage of the PCB is accom-

modated by sensor stop acti-

vated z-axis placement. The sys-

tem also keeps the last ten

positions of the z-axis at com-

ponent placement and uses the

average of these values to im-

prove the drive down and place

speed of the cycle.

§ Component sensor.

Placement Heads:

12-Nozzle Collect & Place Head for High Speed

Component Placement

Technical Data

Stroke of Z-axis max. 16 mm

Programmable placement force 2.4 to 5.0 N

Description

The 6-Nozzle placement head

operates on the Collect & Place

principle.

The cycle time of the 6-Nozzle

Collect & Place Head – and thus

the real achievable performance

– depends on the dimensions and

the number of leads / bumps of

the component.

Mechanically and electrically, the

6-Nozzle Collect & Place Head is

structurally very similar to the 12-

Nozzle Collect & Place Head.

Placement Heads:

6-Nozzle Collect & Place Head for High-Speed

Large Component Placement

6-Nozzle Collect & Place Head for High Speed Placement of

large components

Optical

Centering

Component

Turning

Component

Rejection

Segment

Removal Point

Technical Data

Stroke of Z-axis max. 16 mm

Programmable placement force 2.4 to 5.0 N

Description

A nozzle changer corresponding to

the Collect & Place Head in use

can be installed to the left of the

PCB conveyor with no loss of

feeder capacity. It will change the

nozzle set-up of the placement

head quickly and reliably for the

specific nozzle configuration valid

to a job. Damaged or faulty nozzles

can be exchanged via the menu

function on the station computer.

Placement Heads:

Nozzle Changer

Technical Data

12-Nozzle Collect & Place Head

Type of nozzle All standard nozzles of nozzle series 7xx/9xx

(special nozzles must be tested individually)

Capacity 8 magazines, each with 12 nozzles of one

nozzle type

Nozzle changing times About 2 s per nozzle

6-Nozzle Collect & Place Head

Type of nozzle All standard nozzles of nozzle series 7xx and 8xx

(special nozzles must be tested individually)

Capacity 5 magazines, each with 6 nozzles of one nozzle

series

Nozzle changing times About 2 s per nozzle

Position of Nozzle Changers

Component

Feeders for

Collect & Place

Heads

PCB

Nozzle Changer for 12-Nozzle Collect & Place Head

(7 Magazines, each with 12 Nozzles, Option)

and/or

Nozzle Changer for 6-Nozzle Collect & Place Head

(5 Magazines, each with 6 Nozzles, Option)

Component

Feeders for

Collect & Place

Heads