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Page 16 GS-394-02 Expanded Range Component Verifier The Expanded Range Component Verifier, Model 2864A, provides for the on-line verification of component value and polarity. It is capable of verifying most axial leaded …
Page 15GS-394-02
The rotary dispensing head has several unique features:
• High operating speed of 25,000 cycle/hour.
• Input tape class changeover requires 30 seconds by adjusting
the input tape guides.
• Only one cut component is staged during component load,
reducing scrap and simplifying changeover.
• Symmetrical cutter provides two cutting surfaces for an
increased life.
• Low friction assembly requires minimal lubrication.
• Tape guide setting with lead screw allows fine adjustment of
tape guides.
• Detent provides a method of determining component position.
The optical refire circuit in the dispensing head senses a missing
component from the input tape and recycles (refires) the dispensing
head index mechanism to bring a component into position for
programmed dispensing. Because of its ability to cycle through
blank areas of the input tape, it reduces the need for operator
attention, thus increasing the effective output rate. This refire
feature is most useful when processing pre-inspected component
reels, in which gaps are left because of the removal of defective
components.
Each refire dispensing head is equipped with a light source and an
optical sensor. As a taped component is indexed into position for
dispensing onto the conveyor chain, one of its leads interrupts the
light beam.
If the light beam is not interrupted, a “part missing” signal is
generated causing the dispensing head to automatically index on the
next machine cycle which requires a part from that head. This
“refire” action repeats until a component is detected at the dispens-
ing position or a programmed maximum count is reached. Any
missing components in the input tape will cause refiring of the
dispensing head, reducing effective machine cycle rate.
Page 16 GS-394-02
Expanded Range Component Verifier
The Expanded Range Component Verifier, Model 2864A, provides
for the on-line verification of component value and polarity. It is
capable of verifying most axial leaded components including capaci-
tors (value only), refer to GS-167, "Expanded Range Component
Verifier," for specific component values. The verifier station is
located on the insertion head assembly. Verification parameters are
entered as part of the pattern program commands. The verifier halts
the machine for components failing verification and allows them to
be replaced at the manual load/replace station of the insertion head
if the REPAIR function is selected.
Using the verifier option greatly reduces the possibility of inserting
defective, out-of-sequence, or incorrectly oriented components.
Jumper Wire Dispenser System
A jumper wire dispensing head and feeder assembly included in this
option processes jumper wires from a continuous spool of wire,
eliminating dispensing from reels of previously taped and reeled
jumper wires. It dispenses accurate lengths of cut wire and conve-
niently changes to various wire gages and lengths. It is available as
a factory installed option and as a retrofit kit. A maximum of two
Jumper Wire Dispenser Systems may be installed in any
machine configuration.
The Jumper Wire Dispenser System operates by drawing wire from
bulk input; a cardboard drum package works best. The wire feeder
assembly straightens and then feeds the wire to the dispensing head.
Pattern program control cycles the dispensing head, cutting a length
of wire from the continuous strand, and dispensing it onto the
sequencer chain.
Jumper Wire
Dispensing Head
Jumper
Wire
Feeder
Input
Jumper
Wire
Guide
Tube
Bulk
Wire
Input
Page 17GS-394-02
285mm
(11")
350mm
(14")
Cardboard
Drum
Wire Input — Quality of jumper wire input is critical to reliable
machine operation. The wire must be able to be drawn from its
package without tangling and without excessive drag. The
preferred package is a cardboard drum measuring 350mm (14")
high by 285mm (11") diameter which may be placed on the floor
next to the machine.
Wire is also available on reels, and the optional dereeler assem-
bly must be purchased to allow use of small reels up to 178mm
(7") diameter. There are some potential issues when using reel
type packaging:
• The optional reel holder will work with reels up to 178mm
(7") diameter. If a larger reel will be used, the wire must be
able to feed smoothly if the reel is placed directly on the
floor.
• Smaller reel packages require more frequent changeover.
• Some types of reel packages will not feed properly and
may not allow the machine to run at all.
The suggested source for wire input is Hitachi Cable America
Inc. (White Plains, NY; 1-800-394-0234). Specify part number
"1TPA 0.60***5BP". This part number indicates 0.60mm
diameter (0.024") solder coated copper wire in a 22 kilogram
(approx. 48 pound) cardboard drum package.
The Hitachi wire is also available through Universal's spare
parts division by ordering Universal part number 45126001.
Cut wire length — Class A: 50.80mm ±0.25mm (2.000" ±
0.010"), with thumbwheel increments of 0.10mm (0.004").
Wire diameter — 0.6mm (0.024") solder coated copper wire is
standard. The wire sizes below are tested with the expected
results listed. Consult a Universal Sales Engineer for details.
Wire
Diameter
Tensile
Strength
Maximum
Elongation
Insertion
Hole Span
Comments
0.6mm 27-35 kg/mm
2
4% 5mm-33mm Recommended for optimal
performance
0.5mm 27-35 kg/mm
2
4% 5mm-20mm Expect higher PPM when
insertion span increases to
21mm-33mm range
0.45mm 22-30 kg/mm
2
20% 5mm-20mm Expect higher PPM when
insertion span increases to
21mm-33mm range
Wire Specifications