The use of mechatronics material transportation equipment began in China in the early 1990s, and after more than 20 years of development, it has now become a widely used transportation equipment in professions such as cars, construction machinery, tractors, light industry, and home appliances. Especially in small-scale car electrophoretic coating production lines, it has become the preferred transportation equipment.
1. Selection of wire feeding options
Line delivery is a highly applicable mechanized transportation equipment, and it is also a non-standard equipment. In the practical use of electrophoretic coating production lines, personalized equipment selection is required for different technical requirements, different transported goods, etc., mainly from the following aspects.
1.1 Production cycle of electrophoretic coating line
The production cycle time is the primary technical parameter when planning an electrophoretic coating line, which determines the production capacity after production. When the production cycle time is t=4min/unit or more, the pre-treatment electrophoresis line can be placed on a circular line, and a wire feeding can be selected; But when using dual stations for degreasing, phosphating, and electrophoresis, the delivery line can reach a production cycle time of t=2.8 minutes per unit, which means 250 days of operation per year, and the output value of dual shifts can reach 85000 vehicles. When the production cycle time is less than 2.8 minutes per unit, a stacking suspension chain or swing rod conveyor can be selected. If investment allows, a fully rotating reverse conveyor (RO dip) or a multifunctional shuttle (Vario Shuttl) can be chosen.
1.2 Quantity of transported workpieces
The wire delivery series products are available from 0.2T-15T and are equipped with double loop chain hoists for lifting. Regarding the electrophoretic coating line, when transporting workpieces together, it is necessary to calculate the weight of the lifting equipment and the weight of the water in the workpiece outlet groove. In practical operation, the weight of these two items is much greater than that of the workpiece, and can be budgeted according to the following formula.
A: When the length of the workpiece is less than 5 meters (such as light and heavy trucks, pickup truck cabins, and sedan bodies), it can be calculated as 2 × 2 × workpiece weight. If the weight of the workpiece is ≤ 0.5T, two 1T chain hoists should be selected.
B: When the length of the workpiece is greater than 5 meters (such as a bread car body), it can be calculated as 2 × 3 × workpiece weight. If the weight of the workpiece is ≤ 0.5T, two 1.6T chain hoists should be selected.
C: When transporting workpieces as frames (such as light and heavy truck frames, pickup truck frames, which have less water pockets), they can be calculated based on a 2 × 1 × workpiece frame component. If the component of the workpiece frame is ≤ 2T, two 2T chain hoists should be selected.
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