1 Introduction
Hitch touch screen, with powerful communication function, flexible system composition, vivid and rich gallery, stable, reliable, cost-effective, easy-to-use features has been widely used in the textile industry for many years, automation of the combing machine The improvement of the level plays a major role.
2. Introduction to combing machine
The production of combers in our country started late, but the development rate is very alarming. From the beginning of the introduction of foreign combing machines in the 1970s, we have experienced the introduction, imitation, co-production, and independent manufacturing processes in more than 30 years. Into the 21st century, China's new comber products are endless.
Combers are mainly used in cotton combing processes. It is mainly dependent on the compact and correct intermittent movement of the comber, so that the cotton layer of the lap is combed in an effective holding state. The fluff, neps, impurities and fiber defects in the cotton layer are removed, and the fibers are further separated to increase the parallelism of the fibers. After the machine processed sliver, it can meet the requirements of the following processes, high yarn strength, less down, and good gloss.
3. Basic structural characteristics of the comber
The machine is equipped with Hitech color man-machine interface, can be human-computer "dialogue", so that the machine's operation, maintenance is simple, convenient and more humane. This machine adopts the programmable controller to control the whole machine operation; the main motor adopts the inverter speed-adjusting motor. As long as simple operation on the man-machine interface touch screen can realize the clamp adjustment, no need to disassemble and adjust the speed-regulating gear, the whole starting process is simple , convenient, stable and reliable. The machine is capable of timing, speed-shifting to remove the short fiber on the cylinder to ensure the combing effect of the cylinder, so as to ensure the quality of the combed strip. The performance of this machine is stable, safe and reliable. There are many self-suspended devices designed. At the same time, safety switches are provided on each door cover to effectively control the occurrence of unsafe accidents. A screen for fault prompting is also provided on the screen. The engine head box adopts oil bath lubrication, and the precision of the parts inside the front box is high to ensure high-speed operation of the machine. The use of a reasonable crank length makes the angle of the nipper plate axis reduced, and at the same time its angular velocity and acceleration are reduced, and the moment of inertia is reduced accordingly, which is beneficial to the high-speed improvement of the quality of the web overlap. The forward design of the cotton roller and the top comb will shorten the stroke length of the floating fiber, which will help control the shorter fiber, reduce the number of effective fibers in the noil, and reduce the noilage rate. The size of the long and short connecting rods of the separating roller drive system is optimized, and the ratio of the number of teeth of the rear planetary gears is changed, so that the effective output length is greatly reduced, thereby increasing the combined length of the cotton net, thereby increasing the combination ratio and improving the combing effect. In addition, it is matched with a pneumatically-pressed leather roller, so that the combed fiber and the cotton mesh can reach an ideal value. Optimized bow plate positioning mechanism (Zilin positioning), providing a variety of installation and installation angles (36, 36.5, 37 division) multiple brands, a variety of specifications Xilin (90 degrees, 110 degrees) installation options to meet the different Cotton, different yarn counts, different process needs. Mesa fault detection adopts photoelectric control, which makes the fault display on the man-machine interface more intuitive, and the operator handles the fault more quickly. With automatic lap and automatic barrel changing mechanism, it can meet the needs of large-volume high-speed production, improve production efficiency and reduce labor intensity. 4,Hitech touch screen application
4.1 Introduction to Touch Screen ![]()
The touch screen is an abbreviation of a touch-type industrial graphic display. It is a human-machine interface (known as HMI abroad) that connects humans and machines (various peripheral devices, protocols are open and closed), and is called a face of PLC. It is an intelligent operation display that replaces the traditional control panel and keyboard. Can be used for parameter setting and data display. The automatic control process is depicted in the form of curves, animations, etc., and the PLC control program can be simplified. The main function of the touch screen is monitoring and control. Surveillance - reflects the internal bit status and memory values ​​of the PLC in various forms such as data, curves, graphs, animations, etc., thereby visually reflecting the flow and direction of the industrial control system. Control - can change PLC internal bit state, memory value through touch screen operation, thus participate in process control
4.2 basic electrical structure and configuration, as follows:
The basic configuration is as follows:
A. Numerical input and output to achieve on-site signal acquisition and logic control output according to process requirements
Host: Luo Sheng Feng Wei VB-32MR 1
Expansion Module: Luo Sheng Feng Wei VB-28XYR 1
B. A 4ad module is used to perform real-time monitoring of skipping offset and negative pressure
Analog input module: Luo Sheng Feng Wei VB-4AD 1
C. Use the dual-port dual-screen function and plc, screen communication at the same time, see above. The use of communication methods to achieve the motor's command control and frequency given, eliminating the need for a lot of hard wiring trouble, simplifying the control system structure. Various process parameter settings, real-time data display, alarm prompts, etc. can be directly operated on the man-machine, truly embodying the human-computer interaction function.
Hitech Human-Machine Interface: PWS-6600c-s 1
D. To achieve stepless commissioning, improve labor rates, improve product quality, and increase equipment automation.
Lenz frequency converter: ESMD552L2TXA 5.5KW 1 set
E. Transmission adopts cage type three-phase asynchronous motor
Rated power 4.7KW 4 /Y Rated current 10.17A Speed ​​1460/min
4.3 Features of Automation Functions
The level of automation of combers is also an important indicator of their level of modernization. Raising the level of automation can not only reduce the labor intensity and care burden of the operator, but also reduce the driving fault of the comber, improve the operation rate of the machine and the quality of combed products. Its main manifestation is as follows:
1. A variety of high-sensitivity self-stop devices: such as self-stop stop, full-bucket self-stop, run-out self-stop, air-roll self-stop, roller winding roller self-stopping, separation, and draw-off roller pressure insufficient since Stop, fly jams, missed offsets, excessive self stop, and various safety stops;
2. Use a variety of automatic devices: such as automatic can change (see below), automatic roll, platform automatic cleaning and so on.
3. Online adjustment of process parameters: If there is a problem with certain quality indicators of combed slivers during normal operation of the comber, the HMI can be used to adjust the process parameters.
4. The combing quality and the HMI monitoring function can be used to quickly display the total output of the combing machine.
Quantity, production of each class, speed, speed and other embedded.
5. Once the fault occurs, the fault location of the machine will be displayed and the automatic alarm screen will be automatically displayed.
In order to maintain the site personnel, very humane.
6. Implemented password security protection.
The use of the system is good and it has been applied in many textile machinery factories. The stable and reliable operation of the equipment greatly reduces the failure rate, which in turn raises the level of automation control to a new level and has great promotion value.
5, hitech touch screen advantages in the industry
1. Support multi-port and multi-drive and various advanced network communication technologies to ensure the coordination of various parts of the entire system, with immediateness and accuracy.
2. The good reputation of hitech touch screen for many years of market sales, and excellent cost performance, has been widely used in the textile industry.
3. The use of a simple interface layout, easy to use, with a large number of beautifully produced vector library and bitmap library, allowing developers to produce a beautiful and shocking human-machine screen in a short time.
4. hitech has powerful macro functions, implements simple task tools, assists, reduces the amount of controller programming, and its special usage methods; and is not easily replaced by other brands.