Ipad keyboard dock

Probably, but we need to know what you mean by "original charge port".

Apple has used a few different port types over the years with iPads and the keyboards.

As they say, a picture is worth 1000 words. Attach a photo so we can see what you see.

Unfortunately, you'll not find an adapter for Apple 30-pin to USB-C.

The problem is not simply the mechanical connection; Apple's 30-pin interface is proprietary - and fundamentally incompatible with USB-C.

You can try with something like this: Female 30 Pin to USB-C Adapter - Amazon.com

or this: Apple type 30 Pin to USB-C Adapter - Amazon.com

Can't say for sure if they'll work with the keyboard, but they are cheep enough to try. The mentuon power and data transfer, so they might work.