Eject any way you like

You can hold a short part in the die with the punch ejector and then eject it and hold it in front of the die between the punch and die ejectors for a clean pickup by the grippers. Or you can also eject straight out of the punches into the grippers. You can also delay ejection in order to push a short cylindrical part into the already closed grippers.

Benefit: When you run a new job, you can 'play' with the stroke length and position adjustments to get the right settings -- no need to take out the tools again and again.

And the next time the job comes up, you simply use the setting sheet to duplicate the settings using the scales.

Setting Scales: adjustments made easily

You can set the punch ejector stroke for instance, by moving a graduated adjusting insert on each cam. As the cam's tangent becomes longer or shorter, so does the ejector stroke. The stroke position is also adjustable with an accurate scale on each ejector lever. No need to change ejector rods.

The punch ejector stroke is set by moving a graduated adjusting insert on the cam.

Die Ejectors

The die ejectors can be set for the full working range without changing cams or rods. From 2mm to 125mm (.08 in to 4.92 in) on the Coldmatic AKP 4-5, for instance. You can even use the same cam and rod for trimming.

Overview of Parts -- Diagram

Click image for larger picture

Punch Ejectors

The entire system rides along in the main slide. That's why the punch ejectors are always synchronized with the slide's motion.

You can eject precisely at the instant the slide starts retracting. The parts always remain stationary in relation to the dies, regardless of ejector stroke length.

During the slide's forward motion, the punch ejectors are always retracted to prevent any upsetting force from being applied to the system.

Support Bushes

The support bushes can be set precisely with a control gear. Just press a button to release the hydraulic clamp and set the desired support depth with the aid of precision scale. For the 4th and 5th stations only.

Set ejector timing: early or delayed

You can eject early - just after forward dead center. It works because the ejectors don't have to wait for the grippers. But you can also eject with a delay into the closed grippers. Or even later, towards the back of the stroke, if you want to strip a finished part and drop it clear of the die area.

Trimming with the pneumatic spring

After trimming, a pneumatic spring kicks the trimmed part out through the punch. To be on the safe side, the ejector follows up to clear a part that may have hung up in the trimming die. The pneumatic spring is much more practical than a mechanical spring, because it is depressurized when the die is being replaced.

To adjust die ejectors you turn the cams on the shaft with setting spindles. Each cam has a precision scale indicating the stroke setting.

Return stroke brake

If you want to support the parts on the ejectors while they are pushed into the dies, you can equip the ejector rods with return stroke brakes with automatic take-up.

Optional: Pneumatic return stroke brakes with adjustable braking force - to adjust resistance individually for each ejector.