Buffer area facing coating or assemble production line

Abstract

The invention discloses a buffer area structure among production lines and a control system thereof. Vehicle bodies processed on an upstream production line respectively enter two conveying belts or buffer strips through two selected inlets according to a rolling plan of a downstream production line; a batch of vehicle bodies to be sorted are stored on the buffer strips, and suitable vehicle bodies are selected in the buffer strips and enter the conveying belt to be on line in a selected nearest route by combining the rolling plan of the downstream production line with states of the vehicle bodies on the conveying belts; the two conveying belts directly provide self-finished vehicle bodies for the downstream production line; the two conveying belts at the same time respectively have effects of providing materials for the downstream production line and preparing to provide the materials for the downstream production line; the two conveying belts alternately undertake the task of providing the materials; and when one conveying belt provides the materials for the downstream, the other conveying belt reserves materials to prepare to provide the materials, wherein the beat of providing the materials is the same with that of requirement of the downstream production line so as to guarantee both reliability of an on-line sequence and timeliness of providing the materials.

Description

technical field [0001] The invention relates to a buffer zone facing a painting or assembly production line, which can realize free sequencing and access of car bodies in the buffer zone according to the requirements of the same-color sorting of painting, the similarity sorting of general assembly, or the mixed-flow sorting of multiple varieties. technical background [0002] The whole automobile production process consists of welding, painting, assembly lines and the buffer zone between these three lines. However, in the case of multi-variety mixed-flow production, the time required for welding and final assembly of each variety is different. The buffer zone between the welding and painting line needs to sort the body in the same color, and the buffer zone between the painting and final assembly line needs to be sorted by vehicle type. Similarity sorting, in the production of multi-variety mixed-flow final assembly, it is necessary to sort the vehicle models arbitrarily. Th...

AI Technical Summary

Problems solved by technology

However, in the case of multi-variety mixed-flow production, the time required for welding and final assembly of each variety is different. The buffer zone between the welding and painting line needs to sort the body in the same color, and the buffer zone between the painting and final assembly line needs to be sorted by vehicle type. Similarity sorting, in the production of multi-variety mixed-flow final assembly, it is necessary to sort the vehicle models arbitrarily. The current buffer structure mainly includes circular buffer, linear sorting buffer, and backward shifting buffer, etc., all of which are limited by their own structure and capacity. In the whole vehicle production process, the above three sorting methods cannot be satisfied at the same time

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