16
During the bend of thin profiles or thin material due to intense bending power a wave may occur on the
finished material. Use the nut on Roller B (figure 5)to avoid this problem.
ADJUSTING INSTRUCTIONS
With the HPK 55 machine one set of standard rolls is supplied .If these are arranged and
adjusted in combinations most of the profiles and some angle material can be bent.
Adjustment of rolls and correct positioning of the rolls is critical for the efficiency of the
machine. Some of the basic references are
Expansion of the rolls after long term use due to thermal over heat.
Position of the material between the rolls.
Position of the spacers.
Adjusting top roll coupling if necessary
Positioning using the scale or Digital read-out
When bending too tight material or during serial production you may notice a swelling in the
inside diameter of the material. This is due to top roll which expands due to overheat but does not
move up. Moving the top roll a little up will solve the problem.
On bending where more power is needed the coupling of the top roll can be loosened to
achieve greater rotation or you can use larger top roll so that the material ends are rigidly pushed
between the rolls.
Here the rolls and the spacers are numbered below. Use these numbers to position the roll
according to the drawings on following pages.
Содержание HPK 665
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