NUOVA ELETTRONICA DSP LASER, Instruction Manual

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DSP LASER
DSPLSR01EN 31
11.2.3. Installation and uninstallation of tools
Shearing risks are present between the punches and the dies installed on the press-brake
and not used for the piece in the current process. Systematically uninstall the unused dies.
Check always the tonnage set on the press-brake and the strength of the tools. An
excessive tonnage could break the dies.
After each tool change, it is necessary to check the correct positioning of the device, as
described at chp. 15.4
Check of the correct positioning .
11.2.4. Work organization
The safety of the workers in the factory is firstly based on a correct work organization,
starting from the initial study of the piece to bend up to the real bending operations.
In order to optimize the choice of the working tools and ensure the safety of the operators,
the main prevention measures consists in:
•
training the operators working on the press-brakes.
o
Address only qualified operators, who have been trained about the adjustment and
the use of these machines, to this task.
o
Define, if necessary, some qualification sheets according to competences of
everyone.
•
choose the correct direction of the bend or the shape and the installation of the tools
in such a way to reduce as most as possible the risk of squashing between the piece
and the punch or the piece and the table.
Fig. 11.3 Reduction of the residual risks
•
Optimize the bending sequence limiting, if possible, the punch re-opening stroke over
the sheet to a value of 6 mm, in order to reduce as most as possible the risk of
insertion of the fingers between the tools. For the little size pieces, evaluate the
possibility of extract them from the side.
The correct bending direction moves
the sectioning point to the rear part of
the punch
.
The swan-neck punch reduces the
risk of sectioning in the front area
OPERATOR
SIDE
OPERATOR
SIDE
Squashing
danger Squashing
avoided thanks
to the tool shape