Multiple Printed Circuit Board -
|In order to automatically assemble printed circuit boards
in an economical way, the multiple printed circuit board technology is
used nowadays. Delimitation of the single printed circuit board is achieved
by mill-cutting, perforation or carving. The development tends more and
more towards the technique of carving; it means low costs and a high degree
of stability and has favourable effects on assembly and soldering.
Conventional separation of printed circuit boards, however, creates problems like complicated handling, damaging of fine leads and electronic components, long-term failure. SMD-printed boards are especially endangered.
With FROST cutters, printed circuit board panels can be separated efficiently, economically and in line with today's most demanding quality requirements, even after the components have been inserted.
How it worksThe multiple printed circuit board is shoved from the front between the two wedge shaped separation tools, whereby it slides in its carving. The space between these separation tools is smaller than the thickness of the multiple printed circuit board. Triggered off by pedal the upper separation tool goes down and separates the board (effect of the wedge). The tools do not touch each other during the process.Damage to the components or conductors is ruled out altogether as the cutting forces only act upon the scored line., Furthermore, the cutting process is is absolutely even and parallel along the entire length. Painstaking separation of this nature is of particular significance for SMD-type printed circuit boards.
Only in our absolutely parallel
separation procedures there is a clearly defined power transmission
(of the tools) having an effect on the centre of the PCB. In our procedure
no tensions can arise in the surface of the PCB or the electronic components.
A further advantage of our procedure is that the carving is used as a guide which makes it possible to work universally without changing the stop. The tool opening can be adjusted (according to the thickness of the PCB/board) by means of an adjustment appliance or a coding switch.
Moreover the small distance between the separation tools allows accident free handling.
Handling - space
Due to the ample handling
space boards with rather high electronic components can
also be separated.
The device is built on a solid
frame with a conductive table top (EGB norm, from a cutting length
of 300 mm) Ergonomic aspects have been taken into account.
All conventional printed circuit board materials can be cut with this device (FR2 FR3 FR4-Circuit boards material .... etc.) from extremely thin boards to multilayer types, irrespective of whether the printed circuit boards carry components on one or both sides.
All carving measures correspond to the latest industrial standards.
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