Abstract

In the current Ukrainian economy highly profitable and liquid is a civil engineering, which uses different kinds of cold-rolled profiles. Bending mills, designed to produce high volume production, requires low-production areas, have a mobile installation, assembling and upgrade of basic equipment. Purchased abroad mills have high levels of mechanization and automation, but in our institutional and industrial conditions it necessary supplemented these mills and complete system providing of forming profiles.
In conditions of the big competition in the market of profile production is complete to search the customers and satisfact them. One aspect of the company's competitiveness is the speed of manufacturing contracts with the required quality of the product.
The relevance is the development of systems of high-speed technology, and in particular bending mills equipment, which involves moving and potential orders in the shortest time for the market to attract customers.
Motivation of the topic of Master's work was a practice in the enterprise, where, after dealing with a clear deficiencies of their administration in its current state. The topic was relevant to a broader level, I am interested and I decided to tackle the problem.
The practical significance of this work is that the equipment works bending machines with a pace dictated by the number of products, grouped in appropriate positions of portfolio. If the plan period in the marketing business is to find a market for the products, it provides the speed of these applications as quickly as possible, and this is achieved by increasing the speed of operation of the mill Bending to the limit load. This operation is dynamic handling equipment bending machines, causing great damage to equipment reliability and reduce possible accidents. It should be noted that this task is only for the current period as well as building productive relationships and a market system of expressways bending machines for each plan period will choose speed regimes without these drawbacks, loading equipment is not more than 70% of maximum productivity.
The data permit a statement of the problem, which is proposed in the Master's work :
for information from the top (of the production department and the marketing department : a profile number and the time allotted for construction) to determine speed of production of construction profiles so that the limit on the term of the manufacturing and sale orders, equipment provided a set of products.
Technical difficulties in the implementation of the task involved, especially with readjustment forming equipment, because Each restricted to a new profile of the low speed of a certain number of marriage. Thus, speed of construction equipment manufacturing profiles primarily to do with organizational issues, the essence of which is that a portfolio for the plan period (month) should provide a grouping of similar orders (for a profile), but are made of different metals. This approach reduces the number readjustment replacement forming head of the mill, and the IOEC regime would apply only to properties of plastic materials. If the order comes out of the portfolio, as outrage planning regime, there are options for change-equipment and reduce productivity bending mills operation. The technical side of the problem to be solved is that the management processes at the lowest level necessary to create algorithms cutting raw materials, candy-stripes of in a manner that ensures a minimum amount of waste to the plant to make cutting-speed transmission controlled, providing high speed cutting. Filling lanes in proceeding with damping material accumulation in loop setter, with a speed metal loop setter figure should be much higher than the speed of bending mills operation. Active in loop setter metal, moving to prevail station According to the mission statement should be shaped profile given size to the speed limit, the potential for electrical operation and the speed of deformation metal forming snails.
The object of study-output high-speed manufacturing price for the order.
The studies are models, algorithms and software to manage the speed of bending mills construction of the mill to produce steel from scrap their different plasticity.
Its purpose is to establish a system of automatic control of a fast profile.
According to the present problem, in order to achieve the goal must be to achieve the following objectives :

• SAU Review process, select analog, establish a list of the issues;
• Consider especially the planning portfolio;
• Define the purpose and objectives of the study;
• A study of engineering systems mills;
• Develop mathematical models planning portfolio companies;
• Develop mathematical model profiles manufacturing;
• A parametric model identification;
• Move and formalize the challenge of going Bending and the optimal planning;
• Select numerical methods for solving tasks;
• Develop functional and structural scheme of automatic control;
• Develop algorithms and the optimal planning and management Bending begin;
• To explore the dynamics of the production process profile;

Fig.1. - The schematic image of mills work Figure is animated. The staff - 4, the quantity повтров is infinite, duration of one makes 0,2sec.

That would help increase the effectiveness of decisions taken by the production staff in the manufacture profile in short supply with additional pay for the speed of construction.

The results

Modernized SAU process for the production of cold profile Bending the mill. Because there is the challenge of implementing a two-tier system of profiling, a problem of speed of operation.
In accordance with specified parameters, a selection of equipment for SAU. The power equipment were designed and selected motors : for decoiler - 4A225M4U3, for the main drive-4A160S2U3 for cutting shears - 4A80V2U3. Also selected were appropriate decoiler engines and the main drive frequency : VFD-001L21A and VFD-40WL21A. The relays for power motors were selected KT6033, and 1-20UZA KT6012. The monitoring equipment has been used optical sensors of (Q50BP), Industrial (series AS / DS type ID0013) and capacitive (DKS-M30-81U-1251-LA.02, DKS-M30-81U-1251-LA.01).
Managing was selected controller Simatic S7-300 (Siemens), which were compiled by the modules: control unit and assay CPU-313C-2DP and PS307 power supply.
Were formed as the control and management on the basis of which a functional structure of the government. The technical implementation of management under chosen types of devices developed conceptual framework for the management, allowing challenges form changing speed metal bending profile construction of the wall.
Thus, the system is designed in the lower level built mathematical models of systems for the upper and lower levels.
Later in the work provides a parametric model identification, the model after which the lower and upper levels will be suitable for the prediction of temperature. For the control system was:

• out and formalized management tasks;
• implemented physical place planning;
• formalist task planning.

Then you must select search methods extremes functionals goal verify the adequacy of the numerical algorithm, and a study of its functionals.
The scientific novelty of the system lies in the synthesis of Communication nonlinear differential equations that take into account the performance characteristics of the mill on the lower level and work out a portfolio at the top level. Equation "model-structure" are tools that is invariant on specific businesses and can be implemented in hardware and special software, double level systems, producing profiles. As a result of settings for specific, production, the real significance of the work is that with the present model can be expected manufacturing program in the form of targets for the plan period, and problem solving operational management of the work of the mill.