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The powder coating production line mainly consists of pre-treatment electrophoresis line, sealing primer line, medium coating line, top coating line, finishing line and drying system.

     The whole line of workpiece conveying system of painting production line adopts the mechanized conveying mode combining air suspension and ground sliding sled, which is stable, fast and convenient. It adopts PLC controllable programming, and is programmed according to the actual requirements of the production process. Automatic transfer operation.

    The types and characteristics of the coating automation line are as follows:

        First, the disc rotation synchronous assembly line Features: The typical structure is a disc. It is operated by cam, 4~24 work, simple structure, low investment, reliable, high precision, high productivity, durable and small footprint. The assembly space is limited, the process is limited, the running speed is determined by the slowest process, and any process failure will cause the whole machine to stop running and the flexibility is low. Applicable occasions: the number of steps is small; the product has a large and stable batch; the time of each process is similar.

        Second, the straight-in synchronous assembly line Features: Usually driven by a cam-operated indexing device, the transmission mode can be divided into a circular water surface type and an upper and lower rail type, and the conveyor belt is usually a chain or steel belt type. In the past year, the belt joint was replaced by a finished part and joined by a ball bearing. The number of continuous processes is large, simple, reliable, reasonable and reliable, and the assembly space is large. The movement speed is determined by the slowest process. Any process failure will cause the whole machine to stop running, low flexibility, cost and land occupation more than the disc. Rotary conveyor mechanism. Applicable occasions: The number of processes is more than that of the disc rotary assembly mechanism; the two sides of the product can be arranged for operation, and the products have large and stable batches; the time of each process is similar.

       Third, the conveyor belt type plate non-synchronous flexible powder coating production line features: precision pallets are driven by the production belt between the stations, the application of commodity parts that are not so expensive in recent years has gradually become widespread. The flexibility is much higher than the synchronous assembly line; the number of processes is not limited; this automated production line is easy to combine between single and multiple processes, adapt to different products within the product family, easy to combine manual and automatic processes, easy to gradually achieve automation, relatively not It is easy to be affected by other process changes. When there is a storage area, short-term failure of a certain process will not affect the work of the whole system. The assembly space is large and there are fixed transmission parts. The speed is low (generally 20 operating processes per minute), and the equipment cost per unit of product is high. Applicable occasions: high flexibility requirements; low productivity requirements, a system completes the assembly of a family of products, product structure characteristics change moderately; the number of processes is large, the process time is not similar.

       Fourth, the balance beam type non-synchronous flexible assembly line features: the pallet moves at high speed, the balance beam module can be single or multi-block, single or multi-channel and unloaded in the buffer area, the balance beam will position the pallet in each process short At the pin, the longer-term process is performed in the buffer area. The flexibility is much higher than that of the synchronous transfer device, the productivity is high, the positioning accuracy is high, the number of processes is not limited, and the number of processes can be easily adjusted. The transfer control system can be adapted to the assembly of different product families; it is easy to combine manual and automatic processes, and it is easy to gradually realize automation. When there is a storage area, the failure of a certain station will not affect the continuous operation of the entire system. This automated production line has a large assembly space. There are stereotyped transfer parts. The equipment has a large investment at the beginning and has a large space. Applicable occasions: high flexibility requirements; low productivity requirements, one system completes the assembly of a family of products, high assembly precision and product performance requirements; product structure characteristics change moderately; many processes, the process time is not similar

      V. Continuous motion transmission assembly line Features: Continuous motion transmission assembly line products are assembled when moving, the typical motion is uniform speed, and all components maintain the same speed and precise relative position. The speed is very high, and it is suitable for all mechanical assembly operations. When assembling multiple parts, the precise calibration is very complicated, the initial investment of the equipment is very large, the maintenance of multiple parts is difficult, and the system is difficult to change or convert. Applicable occasions: The continuous motion transmission assembly line has a large production batch; the product is very stable, the number of parts is small; the flexibility requirement is not high.

      Sixth, the characteristics of the robot assembly unit: The typical structure of this automated production line includes a robot, parts feeding device, working table, tools, frame and control, which can connect multiple robot assembly units through the buffer area to form a more complex system. High flexibility, easy to change and convert, can complete complex movements economically, can complete many continuous operations, high precision, reliability, uncomplicated mechanism, small footprint, and generally slow. If multiple robotic assembly units are used to increase productivity, the investment is large. Applicable occasions: This kind of automated production line has high flexibility requirements; the productivity requirement is not high, one system completes the assembly of a family of products; it is often necessary to change the product reliably and quickly; the structural characteristics of the product change moderately; the assembly precision and product consistency requirements are high; Movement is complicated at certain stations.

     The design of each drying system of the powder coating production line refers to the foreign design concept and parameters. The drying chamber body adopts the bridge structure (except for the sealing primer furnace), which ensures the uniformity and stability of the furnace temperature and improves the stability. The efficiency of heat energy; the heating equipment introduced the products of Canada Comac, using imported burners and control systems. At present, the drying systems are tested to be stable and stable, and the temperature curve is smooth and continuous, fully meeting the requirements of current process capacity. And can meet the requirements for increasing production capacity in the future.