Whether you just want a visualization of your measurement data, or you want valuable input signals for your actuators, Hammer-IMS can play a role to get your process stable. Read further to see what we can do for you.
Plastic film extrusion is for sure the industry in which control loops are really everywhere. Tuning of the flat-die opening based on thickness information is for sure the most important control loop for cast film. It doesn’t matter whether you are using thermo die-bolts, piezo die-bolts or using a robot or manual feedback, the knowledge about which bolt to tune is indispensable to optimize your products’ thickness profile. Hammer-IMS identifies the right tunin bolt for you and your production equipment.
Neck-in is a condition in which the width of an extruded film is becoming narrow and the edges of the film will become thicker than in the middle regions of this film. This only occurs for flat film extrusion and not for circular blown-film extrusion. Neck-in results in a situation where edges are required to be cut-off, resulting in material waste, and thus financial losses. Even if cut-off material waste is being recycled in less virgin-grade film products, financial losses are still high when significant neck-in occurs. Appropriate visualization of neck-in tendencies by tracking the position and thicknesses of the edges of the film is therefore important. Hammer-IMS’s Connectivity 3.0 software can assist in this. A similar phenomenon is film shrink.
The process of biaxially-oriented films such as BOPP and BOPET need stretching in both the machine direction (MD) and cross-machine direction (CD) in order to create materials having similar mechanical properties in both directions. The process is carried out on specific machines which sometimes simultaneously perform the stretching operation in the MD and CD and sometimes perform this operation sequentally. The amount of stretching of the film determines the thickness of the film. More stretching stands for a thinner film. Hammer-IMS can deliver the right feedback information for these processes.
Especially in the field of blown-film applications, haul-off control is very important to ensure rolls of extruded films are ‘cylindrically-shaped’ rather than containing bumps. Blown films typically face a systematic microscopic waviness due to the nature of the circular die. (The discrete portlines in the mandrel cause this waviness.) If not appropriately introducing randomness during the haul-off, this may result in non-cylindrical film rolls. Hammer-IMS is not active in the field of blown-film extrusion but introducing randomness during the haul-off is more and more seen as part of cast film extrusion as well. Contact Hammer-IMS to see what we can do.
In textile coating, doctor-blade control enables to equally distribute coating materials on the textile substrate. Hammer-IMS can provide actuator information for two motor drives controlling the blade’s stand-off and tilting. Contact Hammer-IMS for further information.
Calendering lines require gap control, cross-axis control and even bending of the calender’s Rolls. We ask you to discuss your case with Hammer-IMS to see what is possible.
Hammer-IMS’s hardware and Connectivity 3.0 directly support ModBus TCP/IP as its main connection technology. Compatibility with any other industrial bus can be foreseen if protocol converters are commercially available, which is typically the case.