According to the relationship bewteen Paper Making Machine and coating machine, this series of paper coating machine is divided into online coating machine and offline coating machine. For different applications of coating paper, the coating mode is divided into single-side coating and double-side coating, each side can be coated one or more times. The coating machine is mainly uses air knife coater and blade coater, consisting of unwind system, coater, drying system, gloss calender system, regulating and finishing, reeling section and transmission system etc.
Paper Coating Machine, White Coated Paper Machine, White Coated Board Paper Machine, Coated Paper Machine
Paper Coating Machine,White Coated Paper Machine,White Coated Board Paper Machine, Coated Paper Machine Dandong Tianshin Automatization Technology Co.,Ltd , https://www.tianshinmachine.com
With the wide application of industrial light alloy materials such as automobiles and aerospace, high-speed machining has become an important trend in manufacturing technology. High-speed machining has the advantages of shortening the processing time, improving the processing accuracy and the surface quality, and is also increasingly used in the fields of mold making and the like. High-speed machine tools require new CNC systems, high-speed motor spindles and high-speed servo feed drives, as well as optimization and lightweighting of machine tools. High-speed machining is not only the equipment itself but the integration of machine tools, tools, tool holders, fixtures, and numerical control programming techniques, as well as the quality of personnel. The ultimate goal of speeding up is to be highly efficient. Machine tools are only one of the keys to achieving high efficiency, and not all of them. Production efficiency and efficiency are at the "tip."
2. Precision of machine tools
According to machining accuracy, machine tools can be divided into general machine tools, precision machine tools and super-precision machine tools, and the machining accuracy is about doubled every 8 years. The positioning accuracy of CNC machine tools is about to bid farewell to the micron era and enter the sub-micron era. Ultra-precision CNC machine tools are moving into nanometers. In the next 10 years, the combination of precision and high speed, intelligence, and miniaturization will create a new generation of machine tools. The refinement of machine tools is not only an urgent need for industries such as automobiles, electronics, and medical devices, but also directly related to the modernization of defense industries such as aerospace, missile satellites, and new weapons.
3. From process compounding to complete processing
The machining center that emerged in the 1970s opened the door to multi-process integration and has now developed "complete processing", which is the complete machining of complex parts on a single machine tool. Complete processing through the process integration, a part of the processing process to complete a part of the card. Due to the reduction of the number of installations, the accuracy of processing is improved, and the high reliability of the process and the production of zero defects are easily ensured. In addition, the complete processing shortens the processing chain and auxiliary time, reduces the number of machine tools, simplifies the material flow, improves the flexibility of the production equipment, and the total production area is small, making the investment more effective.
4. Informatization of machine tools
The typical case of machine tool informationization is the Mazak 410H. The machine tool is equipped with an information tower to realize the autonomous management of the work place. The tower has communication functions such as voice, text, and video. Interconnect with production scheduling system, download work instructions and processing programs. When the workpiece is cut, the machining process can be observed on the screen. The information tower reflects the working status and processing progress of the machine tool in real time and can be queried by mobile phone. The information tower carries out statistical data analysis of work place and tool life management, as well as fault alarm display and online help elimination. The authority of the machine tool must be confirmed by fingerprint.
5. Intelligent machine tools - measurement, monitoring and compensation
Intelligent machine tools include online measurement, monitoring and compensation. CNC machine tool position detection and closed-loop control is a simple application case. In order to further improve the machining accuracy, the precision of the circular motion of the machine tool and the spatial position of the cutter head can be compensated by the ball bar meter and the laser after inputting the numerical control system. The future CNC machine tools will be equipped with various micro sensors to monitor the errors caused by cutting force, vibration, thermal deformation, etc., and automatically compensate or adjust the working status of the machine tool to improve the working accuracy and stability of the machine tool.
6. Miniaturization of machine tools
With the rapid advancement of nanotechnology and MEMS, the development of machine tools for machining miniature parts has been on the agenda. Micro-machine tools are characterized by high speed and precision. The smallest micro-machine tools can be placed in the palm of your hand. A micro-factory can be placed in a suitcase. The operator controls the operation of the entire plant through the handle and the monitor screen.
7. New parallel mechanism principle
The traditional machine tool presses Cartesian coordinates to move X, Y, Z along 3 coordinate axes and A, B, C around 3 coordinate axes in series to form the required tool movement trajectory. The parallel motion machine tool uses various types of rod mechanisms to spatially shift the main shaft components to form the desired tool motion path. The parallel movement machine tool has a series of advantages such as simple and compact structure, high rigidity and good dynamic performance, and has a wide application prospect.
8. New process
In addition to metal cutting and forging, new processing methods and processes emerge in endlessly, and the concept of machine tools is changing. The field of laser processing is expanding. In addition to laser cutting and laser welding, laser hole processing, laser three-dimensional processing, laser heat treatment, laser direct metal manufacturing and other applications are increasingly widespread. Electromachining, ultrasonic machining, laminated milling, rapid prototyping technology, and 3D printing technology are all supernatural.
9. New Structure and New Materials
The high speed and precision of machine tools require the simplification and light weight of the machine tool to reduce the negative impact of machine component inertia on machining accuracy and greatly improve the dynamic performance of the machine tool. For example, the use of finite element analysis to optimize machine tool components topology, design "box in the box" structure, and the use of hollow welded structures or lead alloy materials have begun to move from the laboratory to practical.
10. New design methods and methods
China's machine tool design and development methods should be transformed from two-dimensional CAD to three-dimensional CAD as soon as possible. Three-dimensional modeling and simulation are the foundation of modern design and are the source of corporate technological superiority. Based on this three-dimensional design, CAD/CAM/CAE/PDM integration is carried out to speed up the development of new products, ensure the smooth start-up of new products, and gradually realize product life cycle management.
11. Direct Drive Technology
In traditional machine tools, the motor and machine components are connected by means of coupling elements such as belts, gears and couplings to achieve the required movement or rotation of the components. The "machine" and "electric" are separated. The direct drive technology integrates the motor and mechanical components into one, and becomes a mechatronic functional component such as a linear motor, an electric spindle, an electric ball screw, and a torque motor. The direct drive technology simplifies the structure of the machine tool, increases the stiffness and dynamic performance of the machine tool, the speed of movement and the machining accuracy.
12. Open CNC system
The opening of the CNC system is a general trend. At present, there are three forms of open CNC system: 1) Full open system, that is, computer-based CNC system, using a microcomputer as a platform, using real-time operating system, developing various functions of the CNC system, transmitting data via a servo card, controlling the axis motor exercise. 2) Embedded system, ie CNC + PC, CNC controls the movement of the coordinate axis motor, PC as human-machine interface and network communication. 3) Convergence system. Based on CNC, add PC motherboard, provide keyboard operation, and improve human-machine interface functions, such as Siemens 840Di and Fanuc 210i.
13. Reconfigurable manufacturing system
With the acceleration of product upgrading, the reconfigurability of special machine tools and the reconfigurability of manufacturing systems are increasingly important. Through the modularization of CNC machining units and functional components, the manufacturing system can be quickly reconfigured and configured to meet the production needs of variant products. The standardization and standardization of interfaces for mechanical, electrical and electronic, liquid and gas, and control software are key to achieving reconfigurability.
14. Virtual Machine Tools and Virtual Manufacturing
In order to accelerate the development speed and quality of new machine tools, virtual reality technology can be used in the design stage to evaluate the correctness and performance of the machine tool design before the machine tool is manufactured. In the early stage, various errors in the design process can be detected and reduced. Loss, improve the quality of new machine tool development.
Overview of 14 major development trends in machine tool technology
1. High-speed machine tool