The ornamental design for an injectionmoldingmachine, as shown.
FIG. 1 is a perspective view of an injection molding machine showing my new design;
FIG. 2 is a first side view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a second side view thereof;
FIG. 5 is a back view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
The broken line showing of the injection molding machine is included for the purpose of illustrating portions of the injection molding machine and forms no part of the claimed design.