Recent improvements of the Kloften & Kloften
March 31, 1998
1. Improved Splicer for Dual Carrier Strips.
With the use of PLC controls and two independent solder feed drives, the procedure for splicing is now as follows:
o In the starting position the upper electrode holder is located in the rear.
o After placing, first the right strip, and then the left one, on the locator pins and cutting, the left upper jaw is lowered. This action will start the solder feed for the rear carrier.
o Lowering the right jaw assembly will start the soldering cycle.
o The upper right jaw is now raised slightly, which will cause the upper electrode holder to move to the front position.
o When the upper right jaw is again lowered, the soldering of the front carrier starts.
o When the red light goes out the second splice is also completed, and the jaws may be opened. This action causes the electrode holder to move to the rear position, ready for the next splice.
Note that the time the soldering current is on is individually adjustable (to within 1/100 of a second), and the length of solder fed to the two carrier strips is also individually adjustable to within a few tenths of a millimeter.
Changing from a dual to a single carrier operation only requires throwing a toggle switch (located on the left skirt of the top unit) from the front to the rear position.
Finally, the PLC has been programmed to allow the splicer to be operated in the normal manner (using the internal cutters) or with automatic movement of the right tooling bar. The change only requires one (red) wire to be moved from output terminal Y7 to Y5.on the PLC.
With the carriers cut on a separate “trim” unit, the splicing operation will be as follows:
o The left strip is placed on the locator pins, and the jaw closed. This will feed solder and cause the right locator bar to move slightly to allow for a small gap.
o The right strip is placed on the locator pins, and the jaw closed. This will cause the right locator bar to close the gap and start the soldering operation.
o Raising and lowering the right upper jaw will complete the splicing operation.