JPS6012440B2 - Surface treatment method in surface treatment equipment - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a plating and other surface treatment method, and its purpose is to enable the same treatment line to be used even if the surface treatment steps, treatment times, etc. are different. .

In conventional plating processes, the processing liquid used, the processing time in each tank, and the processing steps differ depending on the type of plating. For this reason, processes are combined depending on the plating type. However, depending on the process, some steps may require a long processing time, while other steps may be completed in a short time. Even in such a case, since the objects to be processed are transported in tact on the same line, it is necessary to transport the objects to be processed in accordance with the process that requires long-term processing of the objects. For this reason, even in a process that can be completed in a short time, the process takes a long time, which limits the surface treatment ability and is inefficient.In addition, the line length can be changed depending on the treatment process, such as making it longer or shorter. Need to adjust. In view of this, the present invention has a fixed basic line, and by combining auxiliary lines in parallel with this basic line according to the processing process, the processing time of the necessary processing process can be easily adjusted. In addition, desired processing can be performed without changing the main line.The present invention will be explained below based on the illustrated embodiments.

In the figure, A is the main line for surface treatment. A supply and discharge position 1 is provided in a part of this line for supplying and discharging the processed material after processing, and this main line is formed in a loop shape from supply and discharge position 1 The supplied materials are stored in barrels or suspended from hangers and transported by tact feed, and along this main line A, various processing liquids, cleaning water, etc. In addition to arranging a plurality of tanks 2 and 3 filled with .

Moreover, the processing liquid tank 3, which requires a relatively long processing time, is a long tank in the longitudinal direction of the line, so that the object to be processed can be transferred while being immersed in the tank. Further, in this processing liquid tank 3, an auxiliary line B or C is formed parallel to the feeding direction of the main line. These auxiliary lines B and C are also in a loop shape, and a part of these lines is parallel to the main line A for a certain distance. Transfer to line B or C or in the opposite direction is possible, and while tact feeding is performed at a constant speed on the main line, this transfer speed is variable on the auxiliary lines B and C. The auxiliary lines B and C are variable so that the speed of the main line, which is driven at a constant speed, is divisible by the least common multiple. Make it possible to transfer smoothly. For example, when the main line feeds one workpiece at a pitch, the speed of the auxiliary line is adjusted so that the workpiece is fed or fed one by one at a pitch that is an integral multiple of the main line. This auxiliary line has a loop shape, and at least part or all of its outward path is parallel to the main line, and the object to be processed is transferred within the parallel section between the main line and the auxiliary line.

The positions where these auxiliary lines B and C are provided are determined at appropriate positions by processing, and although the number of auxiliary lines is two in the illustrated embodiment, it is also possible to provide three or more auxiliary lines. In addition, a bypass line D is branched from a part of the main line A and is provided parallel to it by a certain distance, so that different processes can be performed on the main line side and the bypass line side. Since the supply and discharge line E is driven at an integral multiple of the speed of the main line at the supply and discharge position 1 of the main line, when the material to be processed is supplied from this line E to the main line A side, the main line In the tact feeding of A, the object to be treated is sequentially transferred between treatment liquid tanks along the main line, and a desired surface treatment is performed.

Then, a preset process is performed on the main line, but even if the processing time, process, etc. change, the main line remains the same and the auxiliary lines B and C are used for processes with different processing times. At this time, even if the feed speed of the main line is constant, the auxiliary line B,
By adjusting the transfer time of C so that the speed is equal to or an integral multiple of that of the main line, it becomes possible to adjust the processing time in a mill having an auxiliary line. Therefore, there is no need to rearrange the main line, and different processing can be performed by using the bypass line. That is, even if the objects to be processed are supplied at random, if the computer is given instructions to store the processing method for each object, the predetermined processing can be carried out sequentially. Furthermore, since the transfer to the auxiliary line and the main line can be adjusted so that the feed rate is divisible by the least common multiple, there is an advantage that even if the speed is adjusted, it can be done smoothly.

[Brief explanation of the drawing]

The drawing is a plan view of an embodiment of the processing method of the present invention. A...Main line, B, C...Auxiliary line, D... ...Bypass line, E... Supply and discharge line, 1. ．． ．．・・・Supply/discharge position, 2, 3・
・・・・・・Processing liquid tank.

Claims (1)

[Claims] 1. A part of a loop-shaped auxiliary line is connected to the main line in a processing liquid tank in a main line that is driven to transfer objects to be processed between processing liquid tanks in a loop shape at a constant speed. By arranging them parallel to each other and adjusting the transfer speed of the auxiliary line, the processing time in the auxiliary line can be adjusted according to the process, and the objects to be processed can be reliably transferred between the main line and the auxiliary line. A surface treatment method in a surface treatment apparatus characterized in that different treatments are performed using the same main line in combination with a bypass line provided branching off from the main line.