A CUSTOMIZED TECHNOLOGY FOR THE PRESSES
Courtesy of Publitec
Magazine Deformazione N.281 FEBRURY 2023
of Aldo Biasotto
Mecolpress has chosen to make use of the customized solution proposed by Siemens, SIMAHYD, to ensure high reliability and better control of the forging process. This solution is combined with Simatic controllers, allowing both control of the hydraulic valves and management of the variable speed pumps.
Mecolpress is a company specialized in the production of machines and systems for hot forging.
Its story begins in 1969 in the Brescia area: here, for over fifty years, the company has been innovating and developing ever new solution to remain competitive on the worldwide market. The heart of Mecolpress beats in Flero (Brescia) where the technologies are designed and manufactured in an industrial area of 30,000 square metres, 10,000 of which are covered by buildings. With a staff of around 60 people, to date Mecolpress has distributed around 2,000 presses to customers in 60 countries all over the world. The context in which the company operates is broad and differentiated . At the beginning it was only focused in the brass hot forging applications, in particular in the production of fittings, valves and fashion products.
Later on, it was expanded to the world of steel, aluminium and special alloys applications, both hot and cold, thus embracing further sectors: automotive, industrial, medical, sports up to watches. To remain competitive on a global scale and bring an innovative contribution to the metal forging market, where the scenarios for the future are increasingly challenging, Mecolpress needed to rely on a top-level partner for technological components.
Thus was born the collaboration with Siemens, in particular regarding the electrical and electronic supply to the company. The goals: to ensure a high reliability in the presses functioning and better control of the forging process.
The way to reach these goals: SIMAHYD. “Siemens offers new solutions regarding power and process control, on a large scale and for different applications. To be successful, you need to be innovative in making your customer competitive: the synergy between Mecolpress and Siemens allows to reach this goal” says Maurizio Razio, Electrical Engineering Manager of Mecolpress.
The advantages of an open and customized package
To pursue this goal, Mecolpress therefore made use of the customized SIMAHYD solution. It is about a custom-built application package, specifically designed for Simatic S7-1500 controllers, which allows the control of hydraulic axes thanks to software modules that extend the functionalities of the original technological objects in Siemens controllers. In this way, both a control of the hydraulic valves and a management of the variable speed pumps are obtained.
The high level of flexibility of applications in the hydraulic sector facilitates a quick and simple control implementation: this was the case of Mecolpress technologies. By applying this solution to the presses, thanks to this package it was possible to ensure the control of the proportional valves on which the seven hydraulic cylinders depend. “The advantages of SIMAHYD open package are many: it allows to make the modifications necessary for integration into the hydraulic circuits of the machines, preserving the existing control program and, to facilitate the axes set-up, it also includes the display part, also It can be integrated into the existing operator interface.
Furthermore, this application is characterized by controller type “fail-safe”, which facilitates an integrated management of the entire machine safety”, explains Sergio Mazzon, OEM Business Developer of Siemens Digital Industries in Italy. Thanks to this customized solution, it was therefore possible to quickly manage the hydraulic power axes, such as those present on the ME Next Generation series presses, reaching extremely high precision and repeatability.
A technologies portfolio for each customer
Today Mecolpress can offer a complete portfolio of technologies according to the application needs of the Customers: eccentric mechanical or screw presses, hydraulic presses, auxiliary presses. The benefits are many and related to both the presses and the complete forging lines: high production capacity with reduced cycle times; high efficiency thanks to the minimization of energy, raw and semi-finished material consumptions; product quality control by monitoring process parameters; complete automation of the production cycle thanks to the reduced intervention of the operator; technologies allowing quick tooling change between one product and another one, in order to manage small production batches too; compatibility with industry 4.0 and arrangement for predictive analysis systems for maintenance and processes; remote or in person assistance service and spare parts warehouse suitable for a prompt response in case of need.
Thanks to the experience gained and the particular attention to innovation, today Mecolpress is able to face the growing challenges of the market head-on. “Thanks to a reliable partner like Siemens, our technologies are perceived as improving and taken into consideration for investments in new industrial assets. The prospects for growth in turnover and market share are solid and demonstrated by the numbers of the last two years and by the orders portfolio acquired” says Danilo Fagnani, Sales Manager of Mecolpress.
HYDRAULIC PRESS, Mecolpress leap into a new eco-green modality
Main features of the new ME eco-green Hydraulic Press
Mecolpress S.p.a. is glad to introduce the new improved features of ME family hydraulic presses, born from the need to offer to the Customers a more flexible and performing machine in terms of product quality and energetic consumptions.
We are currently proposing the family of ME presses having the die closure force that is in the range from 100 to 500 tons (as standard equipment) and with a minimum side punches force of 30 tons that can achieve up to 350 tons. Each of these last ones has completely independent operation, adjustable speed and set-able movement phases (forward-stop-backward); depending by the type of part to be forged , the hydraulic closure cylinder allows to apply the necessary forging force also before the dies contact.
The new presses can be fed by one anthropomorphic robot for the billets loading and one synchronized unloading arm for the forged products that eliminate the set up difficulties of the traditional past technologies; regarding the fumes suction, after a careful analysis of the actual state of the art, we have implemented and optimized the system making it more functional and effective.
The fume suction hood collects the emission very close to the sourcing point decreasing any possible spread into the press cabin, granting to the operators the best inside view of the process and reducing the oil collection and its possible overflow.
In this regard, the machines of the new series are integrated with the walkable grids that surround the press and prevents the eventual drip on the floor of the working area.
The hydraulic presses can be supplied customized with optional equipment according to the production needs.
For example, one of the punches can be oriented with the coring angle that is different from the classic 90° configuration , allowing in this way the realization of particularly complex shapes, like y-joint or filter body.
Other possible configurations are of new ME eco-green Hydraulic Press are:
- the addition of a fifth vertical punch acting from under the die,
- the loading of one or two billets at the same time up to a maximum of four,
- the addition of a dies-holder arm lightening the machine tooling process,
- the addition of a quick dies changing system with hydraulic locking,
- the addition of an induction dies heating system which the machine is particularly compatible with,
- fire extinguishing system integrable with the machine.
Moreover the main innovation is related to the energy saving achievements if compared to the previous series.
From 2022 all the ME presses can minimize autonomously the energy amount that is needed to produce the desired forged part: the press learns automatically the optimal pressure to be addressed to each forging punch: ECO cycle (settable from the control panel). Furthermore, during the movement of each forging punch, Calipso control software optimizes the time in which it is necessary to switch to the maximum achievable pressure (regenerative self-adapting cycle function): all the press parameters will be consequently harmonized according to this requirement.
This behavior represents the key economic and competitive advantage for the press user that can save up to 50% of the total installed energy without losing or reducing the punches force and can optimize the forging process parameters in order to minimize the energetic consumptions. To do this the operator direct intervention is no longer necessary. The operator is not required to have a long term experience or particular skills : he will simply have to activate the ECO cycle from the control panel, ME press will care of the rest!
he will simply have to activate the ECO cycle from the control panel, ME press will care of the rest!
