
31
CUTTER BREAKAGE CAUSED BY EXTERNAL FORCES
In most cases the cutter will break when one or a combination of the external forces, P2 through to
P6 described on the previous page, is applied beyond the limit of the cutter.
Exceptionally heavy stress may be applied to the cutter by moments P3 and P4. These moments
apply a lever action upon the cutter as shown below. The extent of these moments are dependent
on the length of the plate extension, indicated as L1 on the drawing on the previous page.
To avoid situations that will cause external forces to break the cutter, the following recommenda-
tions are made:
1.
Use a support table and conveyor system when moment P3 or P4 is great (bench mounted
operation with large, heavy plates, or plates with a long extension L1).
2.
Use a pinch roller and roller conveyor to improve the feeding force F2 and minimize the
interference force P5 (bench mounted operation with large, heavy plate).
3.
Use a caster assembly to minimize the pulling force P2 away from the cutter (self propelled
operation).
When the KBM
®
-18 is used as a bench mounted unit to bevel the short sides of rectangular plates
such as that shown in the diagram below, the plates should be supported on additional work tables.
Otherwise, a twisting force (A) will give a heavy side stress to the cutter and cause breakage.
Always feed the material square to the machine. As previously mentioned, the greater the
unsupported length L1, the greater the moment P3 or possibly P4, creating an undue load to the
cutter. Therefore it is important that even narrow width plates with a length of 20" [508mm] or more,
be supported by some form of work table and, or, clamp roller system.
Содержание KBM-18
Страница 2: ......
Страница 8: ...4 KBM 18 080 UNDERCARRIAGE ...
Страница 23: ...19 22 5º 30º 22 5º BEVEL ARRANGEMENT 30º BEVEL ARRANGEMENT ...
Страница 24: ...20 37 5º 45º 37 5º BEVEL ARRANGEMENT 45º BEVEL ARRANGEMENT ...
Страница 25: ...21 55º 55º BEVEL ARRANGEMENT ROOT FACE SCALE EXAMPLES ...
Страница 42: ...38 KBM 18 100 GENERAL ASSEMBLY BREAKDOWN Drawing Number KBM 18 100 ...
Страница 43: ...39 KBM 18 100 GENERAL ASSEMBLY BREAKDOWN Drawing Number KBM 18 100 ...
Страница 45: ...41 PIVOT ARM ASSEMBLY BREAKDOWN Part Number KBM 18 213 ...
Страница 46: ...42 SLIDE BASE ASSEMBLY BREAKDOWN Part Number KBM 18 212 ...
Страница 49: ...45 STARTER ASSEMBLY BREAKDOWN Drawing Number KBM 18 214 ...
Страница 50: ...46 MANUAL STARTER ASSEMBLY BREAKDOWN Drawing Number KBM 18 215 1 2 3 ...
Страница 54: ...50 OPTIONAL HYDRAULIC UNDERCARRIAGE ASSEMBLY BREAKDOWN Part Number KBM 18 080 ...
Страница 55: ...51 OPTIONAL HYDRAULIC UNDERCARRIAGE ASSEMBLY BREAKDOWN Part Number KBM 18 080 ...
Страница 56: ...52 OPTIONAL UNDERCARRIAGE ASSEMBLY BREAKDOWN Part Number KBM 18 069 ...
Страница 57: ...53 KBM 18 WIRING SCHEMATIC Drawing Number KBM 18 215 SCH ...
Страница 60: ...www GULLCO com ...