Friday, February 5, 2010

" C " Shift

  I used up the rest of the hydraulic fluid ; there was enough to finish filling the tanks.

 

 I got all the tie bars lubricated & the Nissei overflow jugs emptied.

 

 I started pumping the oil out off MP-1; I’m trying not to pull from the bottom of the tank because it’s so dirty. We can use the oil vac on the bottom. Both the

   front & rear tanks have to be pumped out.  I filled up one of the 250 gal. plastic tanks; I brought the other empty one to the press.

 

 

 

      R.Upchurch

      Molding Maint.

Friday

I straightened out the robot interface on MP13 today.  It is running but there is still one little thing not right on it.  The Auto signal does not appear on the robot screen (MA), but the robot will go into auto anyway.  Problem is that it will also go into auto when the mold machine is in manual or semi-auto too.

I plan on working tomorrow and will fix it then if Collin doesn’t tonight.

 

  Joshua Ledbetter

  Manufacturing Engineer

  Oreck Manufacturing Company

  931-239-3235

 

2.4.10 night shift Sean

I was looking at the star website for info on the new robot and stumbled on a spin off idea for the robot riser we are about to construct for running the steemer mainframe tool. It is riser that swings back out of the way: here is the link> http://www.starautomation.com/images/Pivot%20Base%20~%20L1%20~%206-14-04.pdf
It looks like all we would need to do is use a larger bottom plate with some gussets for support? Just an idea?

I was going down Ronnies List of Machines low on oil.
Refilled Presses 6,11,12,and 14 with hydraulic oil, there is maybe enough to top off the others if they are not too low and the spare oil vat will be out. #11 was the lowest. There is still #18,#19,#20, and #24 to do.

#13- tied in power to robot receptacle and powered it up. The mold safety gate alarm is present on the picker and the machine is saying E-stop circuit activated. They wanted to go ahead and run without it for now so I will check it out further when it is down next.

There was an Assembly issue with the fan housing pressure tester . Had a bad fiber optic receiver on the "part sense" input 6. There were no more in MRO so I informed Rich about it this morning. He (Gary) was asked to but did not provide a work order.

FYI- I have seen an influx of small tool room work since Chris left and they did not replace him. Mostly repairs such as making ejector bar spacers and broken stud extractions. I have also noticed many locator rings for the sprues are getting smashed up lately. We have pressed a few out and turned out the I.D.'s so the molds would fit center. We may need to order some extra locator rings so they can be replaced if needed.?

Thursday, February 4, 2010

2.3.10 night shift

Robot Support Column: I cut it and welded it. I still need to check that the riser that comes in will match up to the drawings that I had to go by.

Installed both color pump signal receptacles in #13 and #19...checked them both with color pumps, good to go.

#19- The techs on my shift were saying that it was down because Collin needed to work on the heaters? I looked at them and noticed that the actual temps were off about 20 degrees from setpoint. I compared the PID settings with those of #22 (same control and on tempersture) and changed them to match 22. Came back an hour later and changed the Middle zone's Integral setting to 150 because it was over about 20. Mark and I checked it at 6am and it was right on so they should be fine now.

#3- had a "Fatal Error" "Communication Error 39 Variable Readkey".
Powered it down and re-referenced robot...seemed to be O.K. afterward.
We'll keep an eye on it.

Sean

Wednesday, February 3, 2010

#19 cores

I looked at the core problem on MP19. It seems the core pull output (166) isn't supplying enough current to even energize the core valve relay. When the load is removed, the output works. But if either the wire going to the relay coil or wire 929, which should power the core, is hooked up to the output, then the voltage drops out. The amperage reading to the 24VDC relay coil is 1.6mA. The set side, which is working, is conducting around 44mA. Both are powered from the same 60mA source. I think the NPN transistor may be bad on the output board. They were going to start the machine back up so I didn't have time to find the actual transistor itself. If we had access to reprogram the controller, we could use output 165 which is free.

Collin

Monday, February 1, 2010

Nozzle Band Wire Nuts

Hey Guys,

In the future, when changing nozzle heater bands, do not use the non-insulated high temp crimp connectors.  Use insulated wire nuts- just make sure you tape them well enough so the plastic will not melt. 

We are getting into situations where the non-insulated high temp crimp connectors are being used, but not taped up very well, and they are shorting out.

I do not want anyone to get hurt over something stupid.

 

Thanks

 

  Joshua Ledbetter

  Manufacturing Engineer

  Oreck Manufacturing Company

  931-239-3235

 

Weekend _night shift D _1.31.10

Mp#13- I got it leveled up, still needs the power tied into the robot and checked out for correct operation.
There are two primary side transformer fuses inside the cabinet that need to be pulled out!
I wasn't sure if we were going to add another 480 there also or not?

MP#19- Cores are still not working, looked at it and found tank/pressure lines were backward. I corrected that, still did not work. After looking at prints, it was apparent that we had the wrong style of solenoid valve. We were using a regular 24vdc, looked like what we needed was the 4 wire type the other newer nissei's have on them (with the circuit built in). I attempted to use small relays to isolate the signal from the load of the coils. One side is working but the other side(929) is not putting out a signal. Not sure if it is a program thing or exceeding the 60ma load may have caused a fault, etc.? Ronnie said that when he checked it out, one side works, then if you swap wires to coil, the other side works so it definitely looks like a signal problem at this point.

I tried to clean and organize the shop tonight and put away a bunch of items back into MRO, etc. The filter cart hasn't been checked out but Mark and I discussed getting it going...there was an issue with the motor coming in wired incorrectly and it looked like it had been very hot before. I printed off a ser vice manual and got some info on it.

Call if there are any questions.

Sean

Sunday, January 31, 2010

" C " Shift

   MP-11    Core set not reading;   The wires had pulled out of the plug. Repaired.

 

  MP- 5   Getting “ prefill time out alarm “.      Changed offset.

 

   Got filter unit off trailer , cleaned, &  mounted on cart. Need to check on filters.

 

I  made some measurements on the main frame mold & MP – 2 . I measured  from the center of the sprue bushing  to the top of the mold.  While the mold was out of MP-2 , I was able to measure from the center of the platen . I marked the uprights . The marks are  one inch above the highest point on the

       mold .  We will need at least 10 inches between the uprights for clearance.

 

 

 

     R.Upchurch

     Molding Maint.