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Panasonic CM602 Machine Process optimization methods

Time: 2016-07-20 15:35:15 Source by: www.gladsmt.com

Panasonic CM602 Machine Process optimization methods

The software optimization result of Panasonic CM602 is a combination of factors, but the result is often due to the setting of certain conditions, and the result is quite different from the ideal result. At this time, the artificial condition setting will improve the optimization result. Need to consider the following aspects

Panasonic CM602 Machine Process optimization methods

1. SMT Pick
1) Increase the number of simultaneous Picks
As mentioned earlier, Pick (GANG PICK) will reduce the total Pick time. The high-speed placement head of the CM402 is composed of 8 independent NOZZLEs, divided into two groups of front and back. Each time it takes up to 8 times. The Pick can complete all the components Pick. The more times the GANG PICK is, the fewer the total number of Picks in each TURN. As shown in the figure, 1 and 2, 3 and 4, 5 and 6, 7 and 8 are respectively Pick. , only need 4 times. In each TURN, it takes at least 2 times to complete the Pick due to the structural limitation, that is, 1, 2, 3, 4 and 5, 6, 7, 8 are respectively Pick, then the machine Pick time is the least.

2) For the same multi-functional head, the Pick time will be reduced or increased depending on the number of times.
The number of TURNs will affect CYCLE TIME, because each additional TURN time will increase by about 2.5 to 3.5 seconds, regardless of the number of components placed in each TURN.
Therefore, minimizing the number of TURNs will greatly improve CYCLE TIME.
A) Balance the number of all components in the production line, that is, consider that the high-speed placement head and the multi-function placement head are all fully loaded except for the last TURN. Ideally, all pickups are fully loaded.
B) The configuration of SMT NOZZLE should meet the requirements of point A as much as possible. According to the standard configuration of component NOZZLE in PART LIB, the number of NOZZLE used is designed.
C) Reduce or eliminate NOZZLE replacement. (Multi-function placement head)
D) Reduce the number of pulls of the TRAY disk. (Multi-function placement head)

3) X-direction moving distance
A. Decrease the distance (horizontal movement) of the head on the TABLE each time the pickup is made.
B. While considering GANG PICK (the moving distance is small when Pick), reduce the number of FEEDER used, that is, reduce the X-direction movement, such as using DOUBLE FEEDER.

2. Identification
(1) A quick scan to reduce the number of scans. For example:
Distance moved before scanning (moving distance in Y direction)
After Pick, the head will move to the top of the recognition camera for scanning, and the shorter the distance from the Pick position to the top of the camera, the better.
Taking the machine from left to right as an example, the FEEDER arrangement on TABLE is centered at 14 stations, and the best position is arranged in 6~21 stations, and the distance from the Pick position to the scanning position is the shortest.

(2) Reduce MARK recognition time
When placing imposition products, if the production requirements can be met, the time for identifying the MARK should be minimized. Usually, the two points of the diagonal line are identified.
* In future versions of the machine software, the PCB identified by STAGE 1 will no longer recognize MARK in STAGE 2 and subsequent machines, saving MARK recognition time and increasing productivity.
(The optimization time in PT200 is the time when production is normal, that is, calculated from the second block, so that PCB CAMERA will automatically perform MARK TEACH during the first PCB production, which takes a long time.)

Panasonic CM602 Machine Process optimization methods

3. Mounting
(1) Recent and reasonable placement location
As with other machines, if the X, Y movement of the head in the placement position is large in each TURN, the time will be longer, and less X and Y movements are ideal. Placement in the PT200 The optimization of the route is done automatically, so this item is difficult to master, but the position of the placement can be limited according to the arrangement position of the FEEDER, so it is necessary to notice the change of the placement route when arranging the FEEDER.
The ideal method is to select the components with the closest placement route when moving the individual components after the automatic optimization. Because the route, the alignment, etc. have been optimized by the software after the automatic optimization, the few movements will not be greatly affected by the stickers. The time change caused by the choice of the loading route.

(2) Pay attention to the height of the largest mounted component
The height of the largest mounted component, expressed in the machine and PT200 as Mnt End Chip H, indicates the height of the component that has been placed. This height setting affects the height of the head as it moves over the PCB. It is conceivable that the head The part will be placed at a higher height for placement, and the time will be longer.
Example: When the PCB without mounting components is placed in the first CM-402, this height can be set to 0.01mm (this can't be 0 in PT200, but it can be set to 0 in the machine).
When entering the second machine after the placement is completed, set the maximum height of the mounted components. For example, if the 1mm capacitor of 2125 is the maximum height, set it to 1mm.
* It should be noted that if the PCB of the first machine has more than 0 components already installed, the set height should be set according to the actual situation.
The version of the PT200 3.90 and later sets the height of the first machine to 0.01mm. The subsequent machine is automatically set without manual intervention, but should be checked.

(3) reduce head interference and reduce head waiting time
Head interference, that is, when a head placement action is not completed, affects the placement action of the opposite head, resulting in waiting.
This is because the structure limits the completion of the action, and can adjust the speed of the Pick, the distance of the movement, the placement speed, etc. according to the actual situation to balance the time difference between the two heads. When the waiting time is small, the speed and efficiency are higher.

4. Transfer
(1) Upper and lower board time
According to the specification, when the length of the board is less than 240mm, the transmission time is halved to 0.9S.
When the length or width of the PCB has more than 240mm on one side and less than 240mm on the other side, consider the shorter side as the length direction, thus reducing the PCB transfer time.

(2) Track transmission speed
The transfer speed of the track can be adjusted. On the basis of the default speed, if the production conditions permit, the transfer time can be reduced by adjusting the transfer speed of the track.

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