Innovation on Technology

Innovation on Technology

GDM is committed to offering the best technological solution for your needs of cost effective production, size change time minimization, waste and defects reduction and improved product quality throughout your full manufacturing process.

Linear Motion Technology

Based on magnetic floating principles, the GDM patented Linear Motion technology is employed providing full chassis width regulation, eliminating hardware replacement and set-up.

Within the Rear Wings application, the double shifter is equipped with linear motors, allowing the cross machine repositioning of the wings. Thanks to the joined actions of this technology and the dynamic shaping unit, it is possible to produce up to four baby open diaper product sizes with no mechanical components replacement.

The Rear Wings Zero Waste application, part of our Option Zero program, is supplied on GDM high speed baby open diaper lines, as the flexible B8 and B10 lines, or can be sold as stand-alone upgrade kit for existing baby diaper machines up to 1200ppm.

Linear Motion Technology
Electronic Cams and Repitching Unit

Electronic Cams and Repitching Unit

Exploiting new technologies applied to servomotors and drives, GDM developed a system to control the discrete applications process in order to minimize changeover, maintenance and setup operation by using a single unit to produce multiple sizes.

A specific speed profile (GDM designed) is used to synchronize the speed of the equipments adapting its speed according to different size lengths. The configuration of the E-cam technology allows its integration on GDM baby machines where is currently installed a standard applicator, and on OEM machines.

Rear Wings Zero Waste

Rear Wings Zero Waste with GDM patented Linear Motion Technology has won the 2017 Index Award in the “Innovation in machinery” category. The equipment has been designed to carry out the application of symmetric Zero Waste Rear Wings of Baby diapers minimizing size change time and responding to clear market needs in terms of production flexibility.

GDM responds to the baby diaper market with its new B8-W Grey line, helping manufacturers to face production challenges through effective and innovative Zero Time solutions, minimizing size change and raw materials setting adjustment time according to customers’ specific needs.

GDM patented Linear Motion and E-cam technology represent the highest expression of flexibility and are employed to optimize processes, minimizing the necessary time for product recipe, material and size setting activities. Within the Rear Wings application, the double shifter is equipped with linear motors, allowing the cross machine repositioning of the wings. Thanks to the joined actions of this technology and the dynamic shaping unit, it is possible to produce up to four baby open diaper product sizes with no mechanical components replacement.

Electronic cams, installed on the final accelerator of Rear Wings application, manage multiple sizes and product lengths with the same machinery for the most flexible solution.

Rear Wings Zero Waste
Longitudinal Folding with Coanda effect

Longitudinal Folding with Coanda effect

GDM has designed a solution able to improve baby diapers overall quality and enhance manufacturers’ sales through consumers’ satisfaction. The new kit for product longitudinal folding is based on “Coanda” aerodynamic effect and aims to eliminate frictions between web and folding plates.

The elliptical folding plates are equipped with a series of small holes manufactured at a specific angle. Compressed air is blown through them creating a fluid “cushion”, which reduces friction between rear wings and folding plates. Two step folding process (operator and drive) allows splitting the folding sequence into two distinct phases.

Single Culling

Advanced high speed production lines are typically equipped with vision systems looking at each product to detect defect and waste the defective ones in order to ensure no faulty product are sold in the market; traditional waste handling solutions are culling at least 3 products for each defective one (one before and one after) to ensure the “bad one” is actually rejected.

The single culling system (Index11 Award-winning) is the new concept of waste solution that ensures only the defective product is rejected with potential of 33% waste reduction for product application defects. This solution includes the vision system to detect the product defects, the high speed servo drive waste gate (to be able to eject one single product) and the signal handling SW.

The core of the system is the algorithm that handles the signals from vision system to machine PLC and activating the waste gate ensuring that the right product is always ejected. Another important fact is that the single culling system is available for new machines as well as a retrofit kit for existing machines and is now vision system brand-independent so it is potentially adaptable to every machines and vision systems.

Single Culling