Nesting
machine
（series V with LCD control box ?Integral, space-saving type?）
The nesting machines are full of activity in the fields of visual inspection,
counting, alignment and assembly of parts in various kinds of industries.Please note that these machines are not designed for fully automatic and
unmanned operation, but for saving in time and labor to handle small parts
that are hard by manual operation. Though requiring an operator to feed
the pallets to the next process, the machines are proud of their high productivities.
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1. Easy visual
inspection
As the
parts are aligned in the same direction on one pallet, visual inspections can
be carried out for defects such as deformations, scratches and stains, much
more easily when compared with randomly placed parts. Besides, the inspector’s
fatigue is reduced to minimum. If necessary, the both sides of the parts can be
inspected in series by transferring them to the reverse pallet.
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2. Simple and
correct counting
As the
number of the shaped holes in the pallet is known, the parts are counted
without error once fully loaded.
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3. Effective
preparation
The parts are aligned in one direction in a short
time. This offers easy preparation for the following process.
Example:
Heat treatment, electrostatic painting, printing, pre-processes for automatic
machines, etc.
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4. Efficient
assembly
The assembly methods that nesting machines use are
grouped into two; picking up one piece or one row of pieces from the pallet and
handling hole pieces on the pallet as a unit.
Example:
IC socket assembly, pin assembly of PGA board, transistor pin, glass assembly.
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*Two types of automatic nesting machines are available:
Low-vibration balancer type and swing quick motion type.
・The low?vibration balancer type eliminates uneven shifting of parts and
aligns them in a short time.
・The swing quick motion type adds a circulating motion to vibration for
efficient nesting. It is best suited to round parts with directions. |
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TI-16VB
(low?vibration balancer type -) |
TI-20V
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What are nesting machines?
1. The nesting machine has essentially two function of swing motion and
horizontal vibration.
2. The “pallet”, the “collecting
pallet (large)” and the “collecting pallet (small)” are placed on the vibration
base as shown in the figure titled “Viewed from A”, then parts are placed on
the collecting pallet (large)
3. Switching the nesting machine on starts both
swing motion and horizontal vibration, which carry and scatter the parts from
the collecting pallet (large), and finally nest them in the shaped holes in the
pallet during their reciprocating movement by the swing motion
4. When the specified
number of swing is complete, excess parts are collected in the collecting
pallet (large). Now the nesting process is all completed.
5. After the parts are
loaded, remove the pallet first, then the collecting pallet (small). You can
repeat the nesting process by setting unloaded pallets and turn the “Start”
switch on again.
6. One to sixteen pallets
can be set depending on the type of nesting machine and the pallet size.
7. In some cases, different types of parts may be
nested at the same time by dividing the pallets by columns. The settable number
of pallets can also be changed.
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■Parts that can be aligned
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■Automatic assembly by nesting machine
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■Example: Making horizontally nested parts upright: |
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1. The upright guide
pallet is placed of the pallet, then the both are inverted and placed on the
final jig.
2. Pins are transferred to the
final jig through the upright pallet once the pallet is removed.
(Notes)
1. Generally, the
operation time is 8 to 10 seconds when the shutter plate is used.
2. The pallet, the upright
guide pallet and the final pallet are aligned with locate pins.
3. This method is used to
place pins in position in assembly of such components as IC sockets, connectors
and PGA packages.
Conditions including the number and shape of the pins
and the patterns can be changed by simply changing the pallets, leading to
total cost reduction. |
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