Are Smt Patches Important?

The processing is to meet customer needs and improve market competitiveness. Today's electronic products are pursuing individualization and miniaturization. Traditional perforated inserts can no longer meet the needs of the market. SMT patch processing conforms to the trend of the times, realizes non-porous patch, and realizes the miniaturization of electronic products.

In PCBA processing plants, the important characteristics of SMT placement machines are accuracy, speed and adaptability. Adaptability is usually the ability of the placement machine to adapt to different installation requirements.

(1) The type of components that can be mounted.

Compared with placement machines that only use SMC or a small amount of SMD, placement machines with a wide range of component types have better adaptability. The main factors that affect the type of components installed on the placement machine are the installation accuracy, installation tools, centering mechanism and component compatibility, as well as the number and type of feeders accommodated by the placement machine. Some placement machines can only accommodate a limited number of feeders, while some placement machines can accommodate most or all types of feeders and can accommodate a large number of feeders. Obviously, the latter has better adaptability than the former. The capacity of the material supplied on the placement machine is usually expressed as the maximum quantity of 8mm braided material that can be installed on the placement machine.

(2) Adjustment of placement machine.

When the placement machine converts from assembling one type of PCB to assembling another type of PCB, it is necessary to reprogram the placement machine, replace the feeder, adjust the PCB transmission mechanism and positioning table, and adjust/replace the placement head Department. Program the placement machine. There are two commonly used programming methods for placement machines: manual teaching programming and computer programming. Low-level placements usually use manual teaching programming, while advanced placements use computer programming.

Replacement of the feeder. In order to reduce the time it takes to replace the feeder, the most common method is to use a "quick release" feeder, and the faster method is to replace the feeder rack so that the feeder of the components on each PCB type All are mounted on a separate feeder rack for easy replacement.

Adjustment of PCB transmission mechanism and positioning table. When the size of the replaced PCB is different from that of the currently installed PCB, adjust the width of the PCB positioning table and the conveying mechanism for conveying the PCB. The automatic placement machine can be adjusted automatically under program control, and the low-level placement machine can be adjusted manually.

Adjust and replace the placement head. When the type of components to be mounted on the PCB exceeds the mounting range of the placement head, or when the PCB type is changed, the placement head is usually replaced or adjusted. Most placement machines can be automatically changed/adjusted under program control, while low-level placement machines use manual replacement and adjustment.

The above is the importance of SMT placement. It is closely related to the use of placement machines. I hope this article can provide you with some help!