A support and control device (1) for circular knitting machines, configured to be mounted in a circular knitting machine, wherein the circular knitting machine comprises at least one supporting structure, with at least one component-holding unit rotating around a central axis of rotation (X), and a plurality of stitch formation components (2) movably associated with the at least one component-holding unit,
- the device (1) comprising at least one support body (6) provided with:
- a mounting portion (50) configured for allowing the device to be mounted to the at least one supporting structure of the circular knitting machine;
- a front side (10) configured to face said at least one component-holding unit of the knitting machine and provided with at least one cam (11) for controlling at least a part of said plurality of stitch formation components (2), said at least one cam (11) defining a guiding path (12) configured for interacting with respective butts (3) of the stitch formation components (2) for controlling each of the stitch formation components (2) of said at least a part of said plurality of stitch formation components;
- a rear side (20), opposed to said front side (10) and configured to face an outside of the knitting machine, away from said at least one component-holding unit;
- wherein the device (1) comprises at least one through opening (30) between said front side (10) and said rear side (20), open on at least one portion of said guiding path (12), said at least one through opening (30) defining an empty space (31) placing at least a portion of said guiding path (12) of said at least one cam (11) in direct communication with an outside of the device, at least in an operating configuration of the device, so that the respective butts (3) of the stitch formation components (2), interacting with the at least one cam (11), face and are in direct communication with said empty space (31),
- wherein the at least one support body (6) of the device has a thickness, calculated as a dimension in a direction from the front side (10) to the rear side (20), and wherein the device comprises a first side face (40) and a second side face (41), which are transversal to and structurally connect said front side (10) and said rear side (20),
- wherein said at least one cam (11) is defined on a cam body (70) removably mountable to the at least one support body (6) of the device, so that the guiding path (12) is defined on said front side (10), and wherein said cam body (70) comprises a front portion (71) on which said guiding path (12) is defined, and a fastening portion (72) placed laterally to said front portion (71) and provided with fastening members, the fastening members comprising at least one hole (74) in the fastening portion (72) and at least one fastening screw (75) for fastening the cam body (70) to one of the first side face (40) and the second side face (41) of the at least one support body (6) of the device,
- wherein the at least one support body (6) of the device is provided with members (52) for a removable fastening of the cam body (70) to the at least one support body (6), comprising at least one fastening hole (54),
- wherein the at least one hole (74) of the cam body (70) and the at least one fastening hole (54) of the at least one support body (6) are aligned along a mounting axis, said mounting axis being orthogonal to a vertical axis, the vertical axis being parallel to the central axis of rotation (X).