For anyone who is familiar with a slitting application, we know that a big challenge of the day-to-day operations is the recipe changes on certain production runs.
For anyone who is not familiar to slitting, a recipe change means the widths between each slitting station will have to change depending on the new requirements of the production run. Which also means the operators will have to manually move the slitting stations to the newly required positions on the machine. How quickly or how accurately this process is, depends largely on the type of positioning system the slitting section has and the skills of the operators. In some applications you may only have 1 or 2 recipe changes per shift but in some others, you might perform as many as 8-10 recipe changes in a single shift! Therefore, in order to help our customers to ease the burden of this process, increasing the accuracy and reducing the time spent on performing a recipe change, Dienes offers a variety of positioning systems to fit all of your production processes. The four different types include manual, semi-automatic, fully automatic and quick set. And they are each explained in further detail below:
Manual positioning systems are systems in which the knives are positioned by hand. Hand brakes, hand wheels, push rods and cranks may be utilized during this process. In these types of systems, the slitting stations would be mounted on a dovetail bar or linear bearings. And the slit widths can be determined via tape measure or digital readouts with our MD Easy Set option, as it provides a real time feed on the position of the slitting stations. These types of systems are perfect for applications that do not require so many recipe changes.
Semi-automatic positioning systems are systems in which the knives are positioned under power but controlled by the operator. The movement of the slitting stations is done via operator buttons and electronically controlled; hand held or mounted; while the width of each cut is determined by the operator. Operator control boxes can be touch screen or button/switch operated with variations including:
- Powered bottom axis movement with manually positioned top axis
- Powered top axis movement with some linear fixed bottom sleeves
- Powered top and bottom axis movement as a C-frame design edge trims
- Powered bottom axis movement with docking between top and bottom knives
- Powered bottom axis movement with powered top axis movement
Fully automatic positioning systems are systems in which knife positioning is under the power via recipe selection through a Dienes slitter control system making it safer for users because the system works automatically without the need for physical intervention on the user’s part. Automatic positioning systems may be with or without quick set; an innovative technology developed by the Dienes Group that is capable of simultaneously positioning all slitting stations, while guaranteeing high levels of accuracy and repeatability.
Other types of automatic systems include: pick and place systems, automatic-dedicated knife banks, and high speed positioning systems. That use different combinations of our award-winning technology. Depending on the requirements of each application, our team of experts determines which of the options for automatic system best fits your application.
As described above, Quick Set automatic positioning systems are systems in which knives are positioned via recipe selection. Making use of the latest technologies available to the industry, Dienes Corporation designed an automatic positioning system that utilizes specially designed adapters propelled by individual motors in conjunction with an absolute location device to allow for precise and simultaneous movement of all cutting stations at once. The entire system is operated via an easy to use recipe driven touch screen operator interface console.
Quick set can be used on any application and can be retrofitted into most applications. These systems are proven to be more reliable than conventional linear actuator systems along with faster and simultaneous slitter positioning setup time of 30 seconds or less, depending upon the number of cuts compared to the standard conventional positioning systems. Quick set can come in razor, crush and shear with three basic motor sizes.
The control system for the Dienes Corporation QUICK SET slitter section makes use of a programmable controller and HMI touch screen for operator ease when entering new recipes and operating the slitter.
Dienes is happy to help customers find the positioning system that best suits their needs. Order your positioning system today or call us at 1-800-885-3452 if you have any questions.