ENGINEERING SERVICES AND CONSULTING Srl

Industrial products: manufacturing process for impact printheads.

Designed the printhead and made the special machines for its production, we set up the entire manufacturing process by implementing the supply chain, training the staff and starting the new manufacturing facility in China.

Training of staff.

Transferred and installed the special automatic machines the local technicians have been trained.

The training was carried out on different themes and covered all phases of the manufacturing process:

• dot matrix impact printhead technology
  
• the characteristics and the key parameters of the head to be manufactured
  
• the various stages of the manufacturing process
  
• incoming materials quality control
  
• quality controls throughout the manufacturing process
  
• final inspection of the product
  

Supply Chain and quality control of incoming materials.

The quality of the incoming materials is essential for a final product that meets expectations.

To achieve this we supported the Chinese customer in the implementation of the entire supply chain: this meant visiting and analyzing about 30 companies in China (Shenzhen, Suzhou, Wuxji, Hangzhou, Hebei,...).

Six Chinese manufacturers were qualified, plus one Swiss, one Japanese and one Italian.

A quality control card has been drawn up for each component and the process of incoming inspection and nonconformity management has been defined.

The manufacturing workshop.

We designed, set up and started the production department in China.

After we defined the assembly process, we created the layout of the department and identified the necessary general equipment (standard grinding machines, ovens, washing machines, etc.). Work instructions and quality controls have been defined for each workplace.

Where required, support tools for assembly, verification and testing have been designed.


Particular attention has been paid to product quality.
To guarantee this, dedicated electronic testing equipment has been developed for the various functional sub-assemblies: measurement of coil resistance, electrical continuity and short circuits. As well as the fixtures required for assembly and control operations.

The final test.

The final testing of the product is essential to ensure that what has been produced is compliant with the specification.

For this step, we have designed and realized a specific parametric test equipment for needle printheads that measures the functional parameters and saves the data on a network server for each registered printhead.

From the acquired data, in addition to a GO NO-GO feedback, we extract the final diagrams that characterize each printhead produced.