markymark31
Member
Hi All,
I am at the design stage of this one and looking for some pointers please ? Has anyone done anything to "synchronise" product flow on two parallel conveyors ?
Basically I have got one conveyor that runs at a fixed speed and it has a number of "trays" fixed to it.
I then have a second conveyor that carries my product that I have to "drop" on to each "tray".
Using PEC's, encoders, and shifting the memory in the PLC I can "track" the tray position along the first conveyor, and also the product along the second conveyor, this part is not a problem.
What I then need to do is work out how much I need to speed up / slow down the second conveyor to ensure that the product drops on to the correct position on the "tray".
The second conveyor is broken into three separate drives at the "outfeed" end, each controlled by a VFD so I can adjust the speed as required.
What I am thinking of doing is checking the leading edge of the tray at a predetermined point before the "drop" point and working out how far away the leading edge of the product is, then I can adjust the speed of the second conveyor to suit.
Has anyone done anything like this before ? can you give me any tips ?
Thank you,
Mark
I am at the design stage of this one and looking for some pointers please ? Has anyone done anything to "synchronise" product flow on two parallel conveyors ?
Basically I have got one conveyor that runs at a fixed speed and it has a number of "trays" fixed to it.
I then have a second conveyor that carries my product that I have to "drop" on to each "tray".
Using PEC's, encoders, and shifting the memory in the PLC I can "track" the tray position along the first conveyor, and also the product along the second conveyor, this part is not a problem.
What I then need to do is work out how much I need to speed up / slow down the second conveyor to ensure that the product drops on to the correct position on the "tray".
The second conveyor is broken into three separate drives at the "outfeed" end, each controlled by a VFD so I can adjust the speed as required.
What I am thinking of doing is checking the leading edge of the tray at a predetermined point before the "drop" point and working out how far away the leading edge of the product is, then I can adjust the speed of the second conveyor to suit.
Has anyone done anything like this before ? can you give me any tips ?
Thank you,
Mark