CONTROL PANEL

Siemens S7-1500 control. Easy to program and use.
Pushbutton station equipped with modern Siemens TP1200 MULTIPANEL TOUCH PANEL.

The touch panel has been an essential standard element of MILLUTENSIL presses for many years. In this way, we were able to implement ad hoc all the functions of our presses, which are grouped into specific screens and visualized by means of user-friendly graphics programs. As a matter of fact, the simple and safe use results in great benefits for the operators.

Two-hands command.
Due to security reasons, some functions can be activated only through traditional buttons (i.e. downstroke must be carried out with two-hands, in compliance with EU-UL-CSA safety legislation).

parallelism control system of platens

Electronic upper plate parallelism anti-unbalance safety device, protection of press and moulds.

The control system is made of 4 linear magnetic encoders with decimal precision, located on the external corners of the upper plate, near the columns.
They consist of an aluminium profile with an IO-Link language and a magnet for reading the position that runs close to the profile, without touching it.
This device is used to continuously check the position and the parallelism of the upper plate of the press compared to the lower plate.
The values measured are dynamically displayed on the touch panel for the entire stroke.

In addition to parallelism control, the entire functioning of our solution relies on the accuracy of the lower plate block thanks to hydraulic half cylinders that precisely fix the entire bottom plate allowing a perfect alignment of the two halves of the mold.

Thanks to this system, both press and moulds are protected from potential damages.


Only high-end mold spotting presses are equipped with this system.

HYDROMECHANICAL SAFETY DEVICES AGAINST THE ACCIDENTAL FALL OF THE UPPER PLATE

2 hydromechanical fall prevention devices on the right and left sides of the press upper plate operating for the entire stroke length.

This modern device works uninterruptedly throughout the press stroke. By means of an innovative device patented by the German company SITEMA, the upper plate is always mechanically locked – in whatever point it stops – by the automatic action of wedges that effectively work, using the plate weight.
These wedges are only released under the action of pressure during the downward movement.
This system fully complies with EC legislation and is much safer and more effective than the traditional and now obsolete toothed fall-prevention bars or multi-hole bars still offered by some manufacturers.


FUNCTION

Step 1/6 Unlocked
The safety catcher is unclamped by pneumatic or hydraulic pressure applied to the annular piston. A well-defined clearance ensures the movement of the shaft, without friction.​ Proximity switch 2 active.

Step 2/6 Secure load
The Safety Catcher is activated as soon as pressure is released from the plungers.​Then, the force of the springs allows the clamping jaws to contact the shaft firmly, thus securing the load.​ Signal change of proximity switch 2 to 1.

Step 3/6 Clamping
The clamping force, however, is not accumulated if the shaft has not been displaced by the load. By exploiting the static self-intensifying friction of the shaft, the jaws are drawn into the final clamping position at their mechanical stops.

Step 4/6 Load
If the load is increased further, the shaft remains in its position, until the static holding force is reached.

Step 5/6 Overload
As soon as this limit is exceeded, the locking device stops the movement of the rod, dissipating the kinetic energy of the falling mass.

Step 6/6 Release
Locking is released by an upward movement of the shaft and the simultaneous application of pressure on the locking device.

Step 1/6
Unlocked

Step 2/6
Secure load

Step 3-4-5/6
Clamping – Load – Overload

Step 6/6
Release


In the version with toothed fall-prevention bar, tipically of other competitors cheaper presses, the system works throughout the whole stroke, but according to the pitch. Therefore, there are considerable off stretches between one stop point and the otherwhere the system doesn’t operate.

Version with fall-prevention toothed bar

LIGHT CURTAINS: ACCIDENT-PREVENTION PROTECTION DEVICES

All die & mould spotting presses by Millutensil are equipped with protection devices, to guarantee the utmost safety of the operator and good conditions over time, as well as to reduce and facilitate maintenance.

The die & mould spotting presses of the MIL/CLASSIC/COMPACT series are equipped with protection devices with light barriers located in the areas that are partially out of the operator’s sight.

The system is made of light barriers operated by a specific safety module controlled by the PLC.

ELECTRICAL CABINET

The electrical panel of MILLUTENSIL presses is located in a dedicated cabinet and separated from the press.
All electrical boards and cards, supplied mainly by SIEMENS, are safe in compliance with CE, UL, CSA standards.


Tipically, in the cheaper spotting presses, the electrical panel is located in the press and is does non-compliance with CE-UL-CSA standards.
Not all electrical cards are “safety”.

Millutensil electrical cabinet

Electrical cabinet non-compliance

Conclusion

The implemented solutions on MILLUTENSIL spotting presses are state-of-the-art, in some cases even patented, and always in compliance with CE-UL-CSA standards.