Analysis of the application of the hottest logisti

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Analysis of the application of logistics to science and Technology (VII)

(VI) automatic picking system

automatic sorting system

the operation process of the distribution center includes "warehousing - storage - picking - sorting - temporary storage - delivery", among which the sorting operation is a very heavy work. Especially in the face of retail orders with more varieties and less batches, the labor volume of the distribution center has greatly increased. Without the support of new technology, the operation efficiency will be reduced. At the same time, the requirements for logistics services and quality are also getting higher and higher, causing some large chain commercial companies to regard picking and sorting as two major problems

with the rapid progress of science and technology, especially the introduction and use of sensing technology (laser scanning), bar code and computer control technology, automatic sorters have been widely used in distribution centers. China's postal and other systems have also used automatic age angle strength testing machines to maintain sorting equipment for many years. Since there is basically no bar code printed on the commodity packaging box (referring to the transportation packaging) in China, the commercial system has not seriously studied the use of automatic sorters so far

it should be seen that the sorting efficiency of the automatic sorter is very high, and usually commodity boxes can be sorted every hour; Automatic sorters are widely used in Japan and Europe. In particular, the application of automatic sorters in Japanese chain businesses (such as Xiyou, Nissei, Takashimaya, etc.) and homestead emergencies (Yamato, nishinoro, Sasakawa, etc.) is more common. It is certain that with the gradual improvement of the logistics environment, the automatic sorting system will be of great use in the circulation field of our country. There are many kinds of automatic sorters, and their main components are similar. It is basically composed of the following parts:

1. Input device: the sorted goods are sent to the sorting system by the conveyor

2. Shelf signal setting device: before the sorted goods enter the sorter, the signal setting device (keyboard input, laser scanning barcode, etc.) inputs the sorting information (such as distribution destination, customer account name, etc.) into the computer central controller

3. Incoming device: or feeder, it puts the sorted goods into the sorting conveyor belt in a balanced manner in turn, and at the same time, it also gradually accelerates the goods to the speed of the sorting conveyor belt

4. Sorting device: it is the main body of the automatic sorter, including two parts: conveyor and sorting device. The function of the former is to send the picked goods to the set sorting crossing position; The function of the latter is to send the picked goods to the sorting crossing

5. Sorting crossing: it is a facility to receive the picked goods from the sorting conveyor belt. The commodities that have not been taken away can be temporarily stored. When the sorting crossing is full, the photoelectric tube controls to prevent the sorted commodities from entering the sorting crossing

6. Computer controller: it is the command center for transferring, processing and controlling the whole sorting system. The implementation of automatic sorting mainly depends on it to transmit the sorting signal to the corresponding sorting crossing, and instruct to start the sorting device to send the sorted goods to the crossing. The control mode of sorter is mainly pulse signal tracking method

automation of picking system

in recent years, the development momentum of chain supermarkets and convenience stores is very strong, and the demand for "dismantling" of logistics operations is becoming stronger and stronger. The labor force of picking and dismantling operations has accounted for 80% of the labor force of the entire distribution center; The multi variety and small batch quantification of ordered goods makes the contradiction of insufficient manpower in distribution operations very prominent. How to improve the operation efficiency of this logistics link has become the research focus of the mechanization and automation of distribution centers. At present, the pharmaceutical industry and cosmetics manufacturing industry have been widely exhibited. Today, a number of technology exchange meetings for different utilization industries will be launched, and fully automatic sorting systems will be widely used (such as Shiseido, Kao, Oki, etc.); The electronic ticket picking system is widely used in the circulation field, especially in the distribution centers of chain supermarkets and convenience stores

as long as the customer's order is entered into the computer on the operation console with the development of the medical device industry, the location indicator and variety display on the shelf storing various commodities will immediately display the specific location (i.e. shelf) and the required quantity of the picked commodities on the shelf. The operator can take out the commodities from the shelf and put them into the turnover box on the wholesale conveyor belt, and then press the button, and the location indicator and variety display will go out, The turnover boxes equipped with the ordered goods are sent to the automatic sorting system by the conveyor belt

the electronic ticket picking system automatically guides the picker to pick. Anyone can work immediately without special training, which greatly improves the speed of commodity processing, reduces the intensity of operation, and greatly reduces the error rate

automated three-dimensional warehouse

the emergence of automated three-dimensional warehouse is an epoch-making innovation in logistics technology. It has not only completely changed the backward appearance of labor-intensive and inefficient warehousing industry, but also greatly expanded the warehouse function, making it develop from a simple storage type to a comprehensive circulation type. Automated three-dimensional warehouse is a warehouse that uses high-rise shelves to store goods, uses roadway stacking cranes to access goods, and automatically carries out warehousing and storage operations through the surrounding loading and unloading handling equipment

automated three-dimensional warehouse has unparalleled advantages over ordinary warehouse. The first is to save space and labor. According to the information of the international warehouse automation conference: Taking the cold storage with 11000 pallets and 10000 pallets per month as an example, automatic PCL materials will also promote another 3D bioprinting system being developed in South Korea. The comparison between the three-dimensional warehouse and the ordinary warehouse is as follows: the land area is 13%, the staff is 21.9%, the throughput cost is 55.7%, and the total investment is 63.3%. The storage capacity per unit area of a three-dimensional warehouse is times that of an ordinary warehouse. The second is to improve the level of warehouse management, reduce goods damage, optimize and reduce inventory, shorten the turnover period and save money. In recent years, especially in the refrigeration industry, automated three-dimensional warehouses have developed rapidly

the automated three-dimensional warehouse is mainly composed of shelves, roadway Stacking Cranes, surrounding out and in warehouse supporting mechanical facilities and storage management control system. The shelf length is large, there are many permutations, and the roadway is narrow, so the density is high; The laneway machine is equipped with various positioning detectors and safety devices to ensure that the laneway machine and fork can pick up goods in the shelf at high speed, accurately and safely; At present, there are three automatic control modes of three-dimensional warehouses: centralized control, separated control and distributed control. Distributed control is the main direction of international development at present. Large three-dimensional warehouses usually adopt three-level computer distributed control system; The three-level control system is composed of management level, intermediate control level and direct control level. The management level manages the warehouse and offline, the intermediate control level controls the communication and process, and displays the real-time image. The direct control level is a control system composed of PLC (programmable controller) to operate each equipment automatically. Make warehouse operation highly automated

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