How to optimize the suspension pipeline?

The assembly line plays an important role in industrial production. Optimizing the assembly line is directly related to product quality and production efficiency, so it has become a topic that companies have to pay attention to.

1. Optimize the operation time of the assembly line and how long to put a board. This is the cycle time invested to meet the production plan. But in fact, the operating time of the bottleneck station must be greater than that of the first station. The first station must not be the bottleneck station. Therefore, the first station may not be invested according to the required cycle time, because the bottleneck station has slowed its speed. From a management point of view, it is necessary to really require the first station operator to invest at the prescribed speed. The conveyor belt speed of the assembly line can also be used to calculate the daily output. The following is the formula for the conveyor belt speed:

Pitch time of the conveyor belt = working hours throughout the day/daily output* (1+defect rate)

Conveyor belt speed = mark interval distance / conveyor belt pitch time

The so-called mark separation distance is the distance between the marks made on the belt of the assembly line. It is hoped that the operator will complete the work at the speed at which the marks flow and place it on the belt line; but the chain line is not marked, so it is the length of the board. As the distance between the marks. Why use a conveyor belt? In addition to transporting items, there is also a function of semi-mandatory operators to complete the work according to the plan, but instead of just speeding up to try and see, it should be calculated according to the above formula.

2. Observe which station on the assembly line is the bottleneck station:

(1) Always busy station;
(2) Stations that always pull the board back;
(3) Starting from this station, there were intervals between the original boards one after another.

The above three points can be detected visually, and then measured with a stopwatch. The operating time is the length of all stations.

The operating time of the bottleneck station becomes the actual cycle time of the entire assembly line, and the daily output formula is as follows:

Daily output = actual working time/cycle time

Therefore, as long as on-site cadres reduce their work time, they can significantly increase production, such as taking some parts to other stations, using tools to save movement, and improving the configuration of the work area. However, after solving the bottleneck station, a new bottleneck station may appear, so this new bottleneck station must be improved. Therefore, if we continue to focus on the improvement of the bottleneck station, the efficiency of the entire pipeline will increase day by day.

3. Observe the cycle time of receiving the board at the last station of the assembly line, which is the cycle time of the actual output. The cycle time of this station must be equal to the bottleneck station. From this station, the efficiency of this assembly line can be calculated. The formula is as follows:

Efficiency = cycle time invested/actual cycle time = operating time of the first station/operating time of the last station

Of course, the operating time of the bottleneck station can also be used to calculate, but it is always simpler and more practical to observe the last station.

The number of work in progress on the assembly line is equal to:

(Working time of the last station-Working time of the first station) * (Working time of the whole day/Working time of the last station)

Precautions for assembly line installation:

The graphic design of the assembly line should ensure that the transportation route of the parts is short, the production workers are convenient to operate, the auxiliary service department is convenient to work, the production area is effectively used, and the mutual connection between the assembly line installation should be considered. In order to meet these requirements, the form of the assembly line and the arrangement method of the assembly line installation work site should be considered when the assembly line is laid out.

The arrangement of worksites during assembly line installation must conform to the process route. When the process has more than two worksites, the arrangement of worksites for the same process must be considered. Generally, when there are two or more even-numbered work sites of the same kind, it is necessary to consider adopting a double-row arrangement and list them in two cases of transportation routes. However, when a worker takes care of multiple devices, consider making the distance of the worker's movement as short as possible.