The pivoting mechanism of the sharpening device Profile K03 (professional knife sharpening machine) is a complex mechanical system that allows you to securely fix the knife, set the angle for sharpening with a maximum allowable error of 0.2 degrees and maintain symmetry when sharpening both sides of the cutting edge of the knife. The turning mechanism is adjusted and calibrated in-house and does not require any additional lubrication.
It has a wide lever that facilitates rotation and at the same time provides a secure auto-locking of the clamping frame. The swivel mechanism consists of a steel housing, swivel axle with tension wheel, auto-turn bushing and aluminum alloy frame.
The pivot axle sits inside the auto-turn bushing, which in turn sits in a steel housing and is adjusted by a tension wheel.
The pivot axle is made of hardened steel and locks the spring attached to a bar with two rolling bearings. Positioning of the axle when turning is accomplished by these bearings. It is realized by rolling the bearings into special grooves in the housing of the slewing mechanism. The housing itself is made of hardened steel grade 45. An autorotation bush is responsible for the accuracy of the bearings in the grooves. The axis of the slewing mechanism is mounted inside the slewing sleeve and runs in two rolling bearings, which allow it to rotate smoothly around its axis. There is an eccentric on the autorotation hub, which aligns the position of the hub. It is the auto-turn bush that allows the bearings to be mounted in parallel. The grooves in the housing are made horizontally, as the grinding load is also horizontal.
The spring is very durable and can work effectively for many years. Without the spring, the mechanism cannot operate. During the operation of the mechanism, it dampens the shock load caused by the frame turning over and acts as a shock absorber to avoid bearing wear during the shock. The spring of the pivoting mechanism axis is made of 65G spring steel. The bar holding the spring is spot welded to the axle.
The axle itself is housed in a steel case, with an aircraft aluminum cover. It passes through the electronic angle gauge pad. And on the frame side of the rotary mechanism, it is secured by a steel tension wheel that allows you to adjust the degree of spring tension stiffness. The tension wheel makes it possible to adjust the turning force of the pivoting frame and creates convenience for using the pivoting unit. Inside the tension wheel is another bearing, the thrust bearing, which provides clearance between the frame and the tension wheel and allows the frame to rotate, allowing the frame to rotate with the axle.
The pivot frame is made of 7075-T6 anodized aluminum and is specially pressed onto the axle. The body of the sharpener, on which the rotary mechanism is located, is made of powder-coated steel.
Mechanism elements such as: bushing and tension wheel, spring bushings and washers are zinc-coated for longer service life. The fixing screws are also chemically oxidized. Rolling ball bearings are used in the swivel mechanism.
WARNING! Disassembly of the mechanism at home is not allowed and will void the manufacturer’s warranty. Calibrating the mechanism at home is extremely difficult, without calibration the mechanism may not work properly or at all.