Basic common sense of electroplating production line
The automatic electroplating production line is a modern equipment that strictly follows the pre-formulated electroplating process procedures, time and requirements for flow operations, which not only has high efficiency, saves a lot of manpower, material resources, improves the production environment, but also plays an important role in ensuring the long-term stability of product quality. It is an inevitable product of the electroplating industry to get rid of the small workshop-style small business state to modern large-scale production and increase the variety content, and is the only way to change the backward appearance of our country's electroplating industry.
Electroplating lines have a wide range of applications, and they are suitable for surface treatment processes such as cleaning, blackening, electrophoresis, phosphating, aluminum anodizing, and various types of plating.
Due to the high investment, it is necessary to consider thoughtfully, mature and long-term before decision-making, and should be comprehensively considered from several aspects such as its own strength, output size, variety range, quality requirements, management grade, degree of automation, and development goals.
1 Cycle Time T
Cycle time refers to the time required to hang up and down (or a bucket) of workpieces. Generally speaking, the shorter the cycle time, the more hangs (or buckets) are produced per unit time.
For linear plating lines, the cycle time is generally ≥ 4.5 minutes, with a minimum of 3 minutes: for ring plating lines, the cycle time is generally ≥ 1 minute, with a minimum of 35 seconds.
2 The amount of plated parts per hang or drum is G
For hanging plating parts, the amount of each hanging plating part is related to the size of the tank, which is generally measured by the number of pieces or weight. The emission range of parts: the horizontal direction should be 200mm smaller than the tank size, and the height should be 350-400mm smaller than the tank.
For roller plated parts, the amount of plated parts per drum is related to the size of the drum, which is generally measured by weight. The emission of parts generally does not exceed one-third of the total capacity of the drum.
3 Calculation of yield
The output of the automatic plating production line is related to the cycle time T (minutes) and the amount of plated parts per hang or drum G (kg or pieces).
Output per hour: G× (60/T)
Types of electroplating automatic production lines
1 Characteristics of the straight type
The straight grooves are arranged in a straight line according to the process sequence, although the cycle time is slightly longer, but the width of the groove is large (up to 7 meters wide), so that each hanger can bear more plating parts, and its total output is not low. Since it is transferred back and forth through the mutual connection of one to several vehicles, it is particularly convenient to realize multiple working procedures in one machine.
There are two types of straight running cars: gantry type and cantilever type, mainly powered by motors. The former has a large lifting weight and is suitable for large and medium-sized plated parts and wide tanks; the latter is lightweight, beautiful, has no obstruction on the working surface, and the operation process is clear at a glance, and is suitable for small and medium-sized plated parts and the groove is not wide.
2
Characteristics of the circular line
Although the cycle time is short, the length of the groove is limited by the pitch and cannot be too long, so the plating parts bear each hang cannot be too much; however, some circular wires can be plated with 2-3 hangs at the same time per beat, and their total output is also considerable. Since it is running at full capacity, the energy can be fully utilized.
The commonly used circular line types range from simple (small) to complex (large): climbing type, platen type, mechanical guide rail type, mechanical cantilever type, hydraulic guide rail type, hydraulic cantilever type, etc., which are powered by motor or hydraulic. The weight that can be carried by each beat ranges from 3 to 50 kg.
Basic functions of electroplating automatic production line
The automatic electroplating production line controlled by (imported) PLC is generally set up with three operating modes: "manual", "step" and "automatic". It can be easily converted between each other. The "manual" operation is generally set to "jogging type" (move when pressed, stop when loose), and its speed is slower, and it is generally used for adjusting the spacing (it can also be used as a handling crane in a straight line). The "step" operation is to complete an action with one click, (when moving horizontally in a straight line, press and go, and stop at the previous station), its speed is normal, it can be used as a manual operation in a straight line, and it is generally used for debugging equipment on a circular line. "Automatic" operation can be set to "fully automatic" and "single cycle", "single cycle" is mainly to verify the effect of equipment after debugging, and the trade-off is determined according to the needs of the root distance. On a straight line, the "automatic" operation root pitch needs and actual conditions can be set up to dozens of sets of working programs; on the circular line, if the conditions are suitable, several sets of working programs can also be set. The stop of the "automatic" operation can make it speed up (return to the original position) after the last movement is completed.
Each action of the electroplating production line is generally set to slow speed, and the process is: slow speed - normal speed - slow speed, and if necessary, the slow speed can be divided into two stages. Therefore, the normal speed of 28 m/min can also keep the start of each action smooth, in place and accurate. This cannot be met in non-automatic production lines (≤ 16 m/min). When the automatic production line is powered by a motor, it mainly relies on the (imported) frequency converter to regulate the speed; when it is powered by hydraulics, it mainly relies on the speed control valve to regulate the speed. Both can be adjusted infinitely to achieve the best operating state and meet the requirements of cycle time (i.e., output).
The electroplating automatic production line controlled by (imported) PLC can show its skills in all aspects of "human-machine" such as automatic "spraying", "jetting", "temperature control", "current adjustment", "high current impact", "PH value monitoring", "adding", "operation display", "fault display", "production record", "report printing", "modifying process parameters", "remote control, operation" and "networking with computer switchboard". Users can choose according to their needs, and can configure text display or screen monitor, computer and other auxiliary machines if necessary.