my country's production line companies have attracted new and old customers with high quality, low price and excellent service. However, behind the rapid development of my country's production line industry, it is shocking that a large number of high-tech complete sets of equipment still rely on imports, and a large amount of foreign exchange is used to import complete sets of high-end equipment every year. For example, plastic film biaxial stretching equipment, a production line of nearly 100 million yuan, has been introduced since the 1970s. So far, 110 such production lines have been imported in China. In addition, the food packaging boxes and filling equipment of the aseptic potato chip production line widely used in the product industry are almost all provided by the Swedish Tetra Pak. Industry experts believe that the excessive dependence of my country's production line food packaging machinery on foreign high-end technology has seriously restricted the sustainable and stable development of my country's production line industry.
Continue to develop to large scale. Large-scale includes several aspects such as large conveying capacity, large single machine length and large conveying inclination. The length of the hydraulic conveying device has reached more than 440 kilometers. The length of a single belt conveyor is nearly 15 kilometers, and several "belt conveyors" have appeared to connect the two places. Many countries are exploring a more complete conveyor structure for continuous conveying of materials over long distances and large volumes. Expand the scope of use of the conveyor. Develop conveyors that can work under high temperature and low temperature conditions, corrosive, radioactive, and flammable substances, and can transport hot, explosive, agglomerated, and viscous materials. Make the structure of the conveyor meet the requirements for the single machine put forward by the automatic control of the material handling system. For example, the trolley conveyor for automatic sorting of parcels used by the post office should be able to meet the requirements of sorting actions. Reducing energy consumption to save energy has become an important aspect of scientific research in the field of conveying technology. The energy consumed by 1 ton of material conveying 1 km has been taken as one of the important indicators for conveyor selection. Reduce dust, noise and exhaust gas generated by various conveyors during operation.
The automation of the production line has the following steps: 1. First determine the takt time: no matter what kind of product, it is manufactured in the exact time it must be completed. 2. Unit process: only for one product, carry out the handling, assembly, processing and material collection of unit accessories. 3. Pilot: A device that can understand the takt time by sight. 4. U-shaped production line: Arrange the equipment counterclockwise according to the engineering sequence, and one person is responsible for the exit and entrance. 5.AB control: Only when there is no product in the current project and there is a product in the previous project, the project will be carried out. 6. Light signal: a device that communicates the abnormality of products in the production line process. 7. Post-engineering collection: The products of the production line should meet the needs of the post-engineering.
The flexible production line is mainly to adapt to the multi-variety and small batches of today's market orders, the frequent production line changes, the flexibility of the flexible production line, and the building-block combined structure, which can adapt to the product modification process in the shortest time, allowing production to resume in time. The products are widely used in the automobile industry, electronic manufacturing, communication industry, bioengineering, pharmaceutical industry, military industry, various chemicals, precision hardware and other diversified production links. Modularization: The wire rod products can be assembled, connected, and modular structure at will, which is convenient for reorganization and flexibility: the structure is simple, the disassembly and assembly are convenient, and personal creativity can be exerted, and it can definitely meet the diversified manufacturing of modern enterprise products. Simplification: The working space of the workbench is small, the inventory power is large, and it is very helpful for small and medium-sized enterprises with orders. Humanization: The flexible workbench can make the workstations of several people do a good job for one person, and the completion time is faster. Environmentally friendly: The processing process saves grinding, welding, and surface treatment, and each of them can be recycled and reused to eliminate waste. The panel can choose wood, (PVC board, the surface can choose anti-static rubber. Anti-static fireproof board, stainless steel, etc.) or Sliding tooling plate. Flexible production line is also known as production line, production line plug-in line, lean tube production line, wire rod production line!
The basic principle of improving the balance rate is to make the operation time of each process approach or reduce this deviation by adjusting the operation content of the process. The following methods can be followed during implementation: 1. First, consider improving the operation of the bottleneck process. The method of operation improvement can refer to the improvement method of program analysis, action analysis, tooling automation and other IE methods and means. 2. The operation content of the bottleneck process Share to other processes 3. Increase the number of operators, as long as the balance rate increases, the per capita output will increase, and the unit product cost will also decrease; 4. Merge related processes and rearrange production processes, relatively speaking, in the content of the work In many cases, it is easy to balance; 5. Decompose the process with a short working time, and arrange the process to other processes. The production line balance guide mainly includes the relevant definitions of production line balance, the meaning of production line balance, the calculation of process balance rate, and the improvement principles and methods of production line balance.