Implementing trained-model on camera
Congratulations :) 
First of all, you use the model to recognize the objects, the model learned from the data, minor detail.
It really depends on what you are aiming for, as the comment suggest, you should probably provide a bit more information. 
The simplest setup would probably be to take an image with your webcam, read the file, pass it to the model and get the predictions. If you want to do it live, you are gonna have the stream from the webcam and then pass the images to the model.
I just trained my model successfully and I have some checkpoints from the training process. Can you explain to me how to use this data to recognize the objects live with the help of a webcam?