RU1790519C - Diagonal cutting machine for metal-cord fabric - Google Patents

Description

The machine contains a frame 1, a knife beam 2, which can be rotated relative to the frame, a step feed mechanism 3, a metal cord web, a pressure bar 4, a horizontal flat knife 5 mounted on a knife beam 2. A disk knife 6 mounted on the carriage 7, with the possibility of movement along a guide 8 from: an electric motor (not shown) through the slider gear 9. The conveyor 10 serves to move the metal cord web 11. On the disk knife 5, round projections 12 are located on one of the sides. The protrusions through holes 13 are fixed with metal-ceramic plates 14, fixed with clamping strips 15 with screws 16. Similarly, ceramic-metal plates are fixed on a fixed knife. The cutting parts of the flat and circular knives are made in the form of joined plates 14, in which the joint plane is tapered at an angle of 40 ... 60 °.

The operation of the machine is as follows. The metzlord cord web 11 is laid on the conveyor 10. The cutting angle of the web is set by turning the knife beam 2. The step feed of the web is carried out by the step feed mechanism 3. The blade is cut with the translational movement of the carriage

7, while the circular blade 5 does not rotate from the electric motor, but freely. A circular knife, moving along the guide and along the edge of the fixed knife, performs the cutting of the blade. In. Time of cutting the canvas

is pressed against the knife beam by a clamping bar 4, which is driven by pneumatic cylinders (not shown in the drawing). To prevent the material from penetrating into the joint cavity of the metal-ceramic plates, the plates are joined to each other at an angle a of 40-60 °. Reducing the angle leads to a weakening of the cutting edge of the insert at the apex of the angle. After wear of the cutting edge, the inserts are rotated 180 °.

Thus, the use of circular and flat knives with cutting edges made of cermet inserts improves the quality of cutting of steel cord

blades by reducing wear of the cutting parts, increasing durability.

Claims (1)

The claims A diagonal cutting machine for cutting a metal cord web comprising a step feed mechanism of a web and a knife beam with a flat knife mounted on it with a cutting part, a clamp a blade and a circular knife with a cutting part, characterized in that the cutting parts of the flat and circular knives are made in the form of stacked wear-resistant ceramic-metal plates with beveled at an angle of 40-60 joints. planes mi 8cd5 tucked up L Fig.Z . /ernu / gyu / J M