What is dark light?

An Deng, also known as dark lamp or safety lamp, was originally transliterated in Japanese, meaning lamp and lantern. Here, it means a system. Andon system can collect production-related information such as equipment and quality management on the production line, and then control the lighting and sound alarm system distributed throughout the workshop after processing. So as to realize the transparency of production information. Lighting system refers to the system installed to deal with JIT problems in time. In order to eliminate the interruption or at least reduce the possibility of its recurrence, some companies use lighting systems to signal problems. That is to say, each job has three lights, the green light means no problem, the yellow light means that an employee is a little behind, and the red light means that the problem is serious. Lighting system enables employees in the same system to exchange information, so that employees and supervisors can find out the root of the problem as soon as possible. Because of its particularity and practicability, safety light system is widely used in automobile industry. In fact, lighting systems are not only used in automobile manufacturing, but also in many industries. [Editor] The origin of safety light system in Toyota production mode. The safety light system comes from Toyota's production mode. Based on it, the real-time suspension system for solving problems has attached importance to the cultural production principle of quality management from the beginning. Specifically, these principles are: the quality provided to customers determines your pricing; Ensure quality by all modern methods; Make the production equipment have the ability to find problems and stop production as soon as they are found, and set up a visual system to warn the team or the person in charge of the plan or prompt a certain process to need assistance; Establish the system and countermeasures for enterprises to solve problems quickly; Incorporate the concept of stopping or slowing down immediately when there is a problem in the corporate culture, and improve the quality on the spot to enhance productivity. From the above principles, it is not difficult to find that in order to realize the continuous high-quality production of automobiles. [1] Anden system is one of the methods for Toyota to realize production management. Now, in the major workshops of automobile manufacturing, such as the stamping, welding and assembly workshops of automobile assembly plants, you can see safety lights with different designs for different needs. Production lines of cylinder block, cylinder head, crankshaft, connecting rod and camshaft in machining workshop of engine factory: assembly workshop is divided into assembly line, assembly line and test production line. In fact, it can be used in all kinds of machinery factories-it can play its early warning role and timely information transmission role anywhere, and it can stop problems in the initial place and solve problems in time. Therefore, the lighting system is ubiquitous, which is the most effective means to improve the quality and quantity and efficiency of manufacturing industry. [1][ Edit ]Andon workflow [1] 1. When the operator needs help and finds problems related to product manufacturing and quality, he will pull down the rope or use the remote control to activate the Andon system. Information will be released through operation station signal lights, Andon billboards and radio to remind everyone to pay attention. 2. The team leader responds to the quality requirements and determines the problem with the operator. If the team leader can solve the problem, then pull down the lifting rope and the system will return to normal. If the identified problem must be solved by other departments, the team leader will make a call by setting up a centralized call desk in the area, and release the information type and content through Andon billboard and rebroadcast, and call for materials, quality, painting and maintenance to solve the problem. [Edit] Main functions of Andon system Main functions of Andon system: workstation operation management workstation call; Centralized event invocation. Equipment operation management fault, operation status and maintenance information. Information visualization management displays call information, fault information and offline information through Andon kanban. Material call displays material call information through the material display screen. Quality calling calls quality information by broadcasting. Equipment Call When the equipment is out of order, a call is made by broadcasting. Maintenance call management displays maintenance information through maintenance and kanban. Public information management displays various public information through the information display screen. Functions and uses of lighting systems [Edit] Categories of lighting systems [1] Perhaps most people know how to operate lighting systems. When you go to the automobile assembly workshop, you can see that each station of the production line is equipped with a drawstring box and a lamp. As soon as the worker pulls the rope, the light will come on, and the light board will show which station is being pulled, and there will be music playing. In fact, this is our common operating safety light. However, with the continuous development of modern manufacturing industry, the lighting system is not limited to surgical lighting. Generally speaking, the functions of safety lights can be divided into the following categories: 1. Operating safety lights Operating safety lights is also a common safety light, which is mainly used in operation-intensive assembly line workshops or production lines. For example, in the production line of automobile manufacturing, the production line is generally transported automatically according to the production rhythm and rotates at a certain speed. In other words, the production line is constantly running, but the workers on the production line are arranged according to the production station. A production line is divided into a certain number of production stations, and each station has one or more workers. After the vehicle enters the production-production station, the workers start the operation of their station, such as assembling the dashboard, installing seats, tires and so on. Therefore, during the installation process, the production line is constantly moving. If the vehicle enters the next station, a new vehicle will enter the station. Therefore, if workers can't complete the required work within a certain production rhythm, the follow-up work will be affected. In order to avoid this problem, workers can stop the production line by turning on the light, so that they can continue to finish their work and avoid the problem spreading in one station. The above is a simple description of the operation of the safety light. In fact, the operation of safety lights is divided into fixed position parking safety lights and immediate parking safety lights. After the safety light for parking in a fixed position is pulled down, the production line will not stop until it reaches the beat position. Usually in the process of workers' operation, if necessary, the safety light can be pulled down. At the same time, the team leader will immediately see the safety light signal and help solve it immediately. Often the problem is solved before the fixed parking position is reached. At this time, the -stop signal can be released immediately, and the production line does not really stop, which improves the production efficiency and the speed of solving problems. After the emergency stop light is pulled down, the production line will stop immediately. This kind of emergency stop light usually needs to be pulled down only when it can solve the problem. Generally, the fixed parking safety light is designed as red, and the fixed parking safety light is designed as yellow. At the same time, the level of instant stop light is higher than that of fixed stop light. In order to cooperate with the operation of safety lights, one or two safety light display panels are generally set on each production line. If the production line is long, set more. The principle is that it is convenient for the section chief to see which station is pulled down-what type of safety light. The design of lighting board used to be a light box, which displayed less information and the information content was relatively fixed. At present, the lighting panel generally adopts plasma display screen or LED display screen. Driven by computer, the displayed information is more diversified, and a large amount of production information can be displayed on the lighting board. Workshop site managers can get the information they need by browsing the lighting boards. With the development of modern manufacturing industry, there are more and more automatic production equipment, such as some filling machines and inspection equipment. As well as automatic equipment, such as conveyor chains, are integrated with the operation of safety lights. These devices are connected with the safety light system through the interface, and the devices automatically obtain the characteristic data of the vehicle and perform the operation automatically through the production execution system. If problems are found in the process, such as quality problems, the signal to repair the parking safety lights or stop the vehicle safety lights will be released immediately. 2. Quality safety lights Quality safety lights are installed in some key positions. Some manufacturers integrate the quality safety lamp with the operation safety lamp when designing the safety lamp system, and distinguish it on the processor of the safety lamp system. This design is usually the same in hardware design, and different functions of different light boxes are realized through different definitions and configurations. This design unifies the quality lighting and operation lighting, and it is only realized in the background by configuration, which is better in terms of cost and benefit. Akio Toyoda's workshop is usually carried out according to this design mode. There is also an independent light box to realize it, which will have more functions, such as increasing the choice of quality categories. Generally, this design is to set up light boxes of this quality at the terminals of some lines. Daimler-Chrysler's manufacturing workshop adopts this design model. Quality and safety lighting is mainly to find the quality problems of front-end processing/assembly, feed back the problems in time and need the assistance of front-end personnel to solve them. 3. Material Lighting Material lighting is mainly to pull materials to ensure the immediate supply of materials on site. The biggest difference between operation safety lights and quality safety lights is that operation safety lights and quality safety lights are generally divided according to production lines or sections, while material safety lights are generally divided according to the way of material supply, and not every station is equipped with a safety light box. Because the mode of material supply is district supply, it is possible that some stations of several lines are in the same material supply area, and the same line may be in different material supply areas. Therefore, the design of the lighting board should refer to the material supply mode of the workshop. Generally speaking, light boxes illuminated by materials are different from those illuminated by surgery. Most of the lighting is operated by pulling rope (some special stations may use buttons due to the limitation of production line), while the material lighting is generally operated by buttons, which are generally installed on the material rack to facilitate the operation of operators when taking materials. Moreover, besides installing a light board in a certain area, the material safety light generally has an LED display code, which automatically displays the beat in the material temporary storage area, and the maximum number of times of cyclic display is generally the beat of material supply. In this way, the material supplier can automatically send the material to the edge of the line according to the beat of the material supply area. 4. Kanban lighting Kanban is the most commonly used and effective mode to pull materials in the assembly industry. Modern manufacturing generally uses electronic kanban to automatically pull materials, and some use paper kanban materials. When using kanban to pull materials, kanban is generally collected regularly. The role of kanban lighting is to remind kanban collectors to collect kanban regularly. After collecting the kanban, the kanban collector resets the kanban lighting. The above categories are widely used in manufacturing, especially in automobile manufacturing, mainly from the realization of different functions. However, judging from the above types of safety lights, there are * * * similarities-all in order to realize the idea of stopping immediately or slowing down when there is a problem, and improving quality on the spot to improve productivity.