Abstract:
A roll stand for a rolling mill has a housing (40a,40b) with a through opening (46). The housing rotatably supports a pair of roll shafts (52), at least one of which is journalled for rotation in the eccentric bores of interconnected sleeves (48a,48b). The roll shafts (52) carry work rolls (34) positioned in the through opening (46) to define a roll pass (A) therebetween. An adjustment mechanism (74,76,80) is axially engageable with one of the interconnected sleeves (48a) to rotate both sleeves and thereby adjust the parting between the work rolls (34). The adjustment mechanism is contained in a module (66) which is separably connected to the housing.
Abstract:
Apparatus for shearing elongated products such as rods, bars and the like moving longitudinally along a path of travel (Pt). The apparatus includes a pair of constant diameter helical blades (44) mounted for rotation about axes parallel to the path of travel. The rotational orientation of the blades and the spacing between their respective axes is such that segments of the blades coact along a cutting path (Pc) parallel to the path of travel. The blades are rotated in opposite directions to thereby cause coacting segments thereof to move repetitively along the cutting path in the direction of product movement. A switch (56) diverts the products from the path of travel across the cutting path for shearing by the coacting segments of the cutting blades.
Abstract:
A single strand block-type rolling mill has pairs of oppositely inclined work rolls (16) arranged successively along a mill pass line (18) to roll rod and bar products in a twist-free manner. A planar base structure extends in parallel relationship between the mill pass line. A plurality of housings (32) are arranged seriatim along the mill pass line. The housings are secured to the base structure and have mutually overlapping portions secured to one another. Each housing includes intermediate drive components for driving a pair of roll shafts (40) carrying one of the work roll pairs, with the intermediate drive components being mechanically coupled to each other and to a common mill drive.
Abstract:
A block type rolling mill has work roll pairs (12) arranged along a rolling line (X) to roll a single strand product in a twist-free manner. The work roll pairs are driven by a common mill drive (34) via a drive train which includes two parallel line shafts (28a, 28b) with at least two successive work roll pairs being alternatively coupled to one or the other of the line shafts. This is achieved by providing a common intermediate drive means, including a shaft (44), which links two successive roll pairs and the line shafts. The line shafts are coupled to the intermediate drive means via clutches (56a, 56b) in such a way that one of the line shafts can be selected to drive the roll pairs. Different gear ratios can be selected in the connection between the respective line shaft and the intermediate drive means so that the rolling speed of the roll pairs can be changed for rolling different diameter products.
Abstract:
Apparatus for shearing elongated products such as rods, bars and the like moving longitudinally along a path of travel (Pt). The apparatus includes a pair of constant diameter helical blades (44) mounted for rotation about axes parallel to the path of travel. The rotational orientation of the blades and the spacing between their respective axes is such that segments of the blades coact along a cutting path (Pc) parallel to the path of travel. The blades are rotated in opposite directions to thereby cause coacting segments thereof to move repetitively along the cutting path in the direction of product movement. A switch (56) diverts the products from the path of travel across the cutting path for shearing by the coacting segments of the cutting blades.