CN2097043U

CN2097043U - Cold-rolling torsion machine for reinforced bar

Info

Publication number: CN2097043U
Application number: CN 90226162
Authority: CN
Inventors: 林振鹏; 李子余
Original assignee: JIAXING CITY REAL ESTATE ADMINISTRATION
Current assignee: JIAXING CITY REAL ESTATE ADMINISTRATION
Priority date: 1990-12-16
Filing date: 1990-12-16
Publication date: 1992-02-26

Abstract

The utility model discloses a cold-rolling torsion machine for processing reinforced steel bars, comprising a motor (1), a clutch (9), a gear box (2), a torsion dividing box (3), two rolls (5), a roll supporting frame (7), and a torsion device (10) which is composed of a torsion head, a guide cup, a pair of barrel twister wheels, and a torsion angle disk. The torsion head is fixed on the side plate of the roll supporting frame through the torsion angle disk, the inlet of the guide cup faces against the clearance between the two rolls, the disk steel is rolled into a flat shape by the roll, and then the flat-shaped disk steel is twisted by the wheel of barrel twister. The spiral cold-rolling twisted reinforced steel bars can be produced to be used for construction, and the steel product can be saved.

Description

Cold-rolling torsion machine for reinforced bar

The utility model relates to a kind of cold rolling process equipment of reinforcing bar.

Common dish round bar, through cold rolling, cold twisting processing, by draw down, stretch, be twisted into profile and be continuous helical curved surface shape, its tensile strength will improve than mother metal, after being used for pouring into armored concrete, also can increase with the bond stress of cement.Therefore, in reinforced concrete works, use through reinforcing bar cold rolling, cold twisting---cold-rolled torsion steel bar is the good method of saving steel.Common double-roll rolling mill can only be used for the reinforcing bar draw down and stretch, and can't process cold-rolled torsion steel bar.

The purpose of this utility model is to propose a kind of equipment of processing cold-rolled torsion steel bar.

This cold pressing and wreathing machine comprises motor, gear-box, branch square case, two universal connecting shafts, two rolls, roller bracket and a torsion device.The rotating shaft of motor links to each other with the power shaft of gear-box with belt by belt pulley, the output shaft of gear-box links to each other with minute power shaft of square case, divide two output shafts of square case to link to each other with two rolls by two universal connecting shafts respectively, two rolls are loaded on the roller bracket parallel to each other.Described torsion device comprises torq, guide cup, a pair of running roller and torsional angle dish of reversing.There is a hole at the torq center, reversing running roller is loaded on the torq parallel to each other, each reverses running roller and is connected with torq with pair of bearings, two sides of reversing the slit between the running roller face the hole at torq center, guide cup is contained on the torq two opposite sides that reverse running roller, torq is fixed in the hole of roller bracket side plate with the torsional angle dish, the flange of torq is stuck on the edge in hole, the import of guide cup faces the slit between two rolls, the torsional angle dish is pressed on the torq, be bolted on the side plate with several, when these bolts unscrewed, torq can be rotated in the torsional angle dish again.

During use, unscrew torsional angle dish set bolt earlier, adjust torq, make the slit of reversing running roller parallel with the roll slit.After will sending into, roll partially from a side in roll slit through the end of the reinforcing bar of straightener straightening and descaling; pass the slit of reversing running roller again; treat that reinforcing bar stretches out from the hole at torq center after; the temporary transient shutdown; rotate torq; make and reverse running roller and clamp the reinforcing bar of draw down, reversed a suitable angle.Then, torsional angle dish set bolt is screwed, torq is fixed, start cold pressing and wreathing machine once more, circular reinforcing bar is even continuously be twisted into helical form by roll draw down, the back that stretches by the running roller that reverses on the torq.The pitch that the angle that the change torq turns over can be regulated cold-rolled torsion steel bar.

Accompanying drawing 1 is the structural representation of cold pressing and wreathing machine;

Accompanying drawing 2 is front views of cold pressing and wreathing machine;

Accompanying drawing 3 is structures of torsion device;

Accompanying drawing 4 is connection diagrams of reversing running roller and torq;

Accompanying drawing 5 is structure charts of roll.

As depicted in figs. 1 and 2, (1) is television set among the figure, (2) be gear-box, its power shaft links to each other with the rotating shaft of motor with belt (8) by belt pulley, the output shaft of gear-box links to each other with the power shaft that divides square case (3), divide two output shafts of square case (3) to link to each other with two rolls (5) by two universal connecting shafts (4) respectively, the gap between the roll can use adjusting screw(rod) (6) to regulate.Torsion device (10) is loaded in the hole on the side plate (11) of roller bracket (7).The structure of torsion device as shown in Figure 3, torq (16) is pressed on above the side plate (11) by torsional angle dish (15), the torsional angle dish then is to rely on several bolts (14) to be fixed on the side plate (11), two reverse running roller (13) is loaded on the torq (16) parallel to each other, each reverses running roller and is connected with torq with bearing, reverses running roller and can rotate neatly with respect to torq.Used bearing can be the sliding bearing with oil lubrication, also can be the composite bearing of oil-free lubrication.As shown in Figure 4, because it is very big to reverse the axial thrust load of the suffered distortion power of running roller, thereby the bearing that reverses between running roller and the torq can be made up of a pair of no oily compound thrust bearing (22) and a pair of no oily composite sliding bearing (23).Two reverse the hole (18) that slit between the running roller faces the torq center.(12) be guide cup, the hole at guide cup center is facing to the slit between two twist wheel.For easy to make, this torq also can be to be assembled by several parts.

As shown in Figure 5, in order to improve the service life of roll, reduce manufacturing cost, roll can be made modularly, be made up of roll shaft (20) and roller shell (19) two parts, roller shell is made with the higher material of hardness ratio, can change after the wearing and tearing, and the axle of roll needn't be changed, with economical with materials.Roll shaft and roller shell fix with key (21).

Because duty ratio is bigger when rolling reinforcing bar, and milling train must restart after reinforcing bar is packed into, starts load in order to reduce, and can install a clutch (9) before the power shaft of gear-box additional, the joystick of clutch can be contained near the roll, so that operation.During startup,, make the motor sky wear startup with the clutch disconnection, the clutch that closes again after the startup, to reduce to start load, like this, when adjusting, running or time-out are also just very convenient.

This cold pressing and wreathing machine is mixed sale at reduced prices frame, machine straightening device, fixed-length cutting device again, can carry out continuous draw down, reverse processing the dish round bar.

Claims

1, a kind of steel bar cold rolling is turned round machine, comprise motor (1), gear-box (2), divide square case (3), two universal connecting shafts (4), two rolls (5) and roller bracket (7), the rotating shaft of motor links to each other with the power shaft of gear-box by a belt, the output shaft of gear-box links to each other with minute power shaft of square case, divide two output shafts of square case to link to each other with two rolls by two universal connecting shafts respectively, two rolls are loaded on the roller bracket parallel to each other, it is characterized in that it also comprises a torsion device (10), this torsion device comprises torq (16), guide cup (12), an a pair of running roller (13) and the torsional angle dish (15) of reversing, there is a hole (18) at the torq center, two reverse that running roller is parallel to each other to be loaded on the torq, each reverses running roller and is connected with torq with pair of bearings, two sides of reversing the slit between the running roller face the hole at torq center, guide cup is contained on the torq two opposite sides that reverse running roller, torq is fixed in the torsional angle dish in the hole of side plate (11) of roller bracket, the import of guide cup faces the slit between two rolls, the torsional angle dish is pressed on the torq, use several bolts (14) to be fixed on the side plate (11) again, when these bolts unclamped, torq can be rotated in the torsional angle dish.

2, steel bar cold rolling as claimed in claim 1 is turned round machine, it is characterized in that the described bearing that reverses between running roller and the torq is made up of a pair of no oily compound thrust bearing (22) and a pair of no oily composite sliding bearing (23).

3, steel bar cold rolling as claimed in claim 2 is turned round machine, it is characterized in that described roll (5) is made up of roll shaft (20) and roller shell (19) two parts.

4, steel bar cold rolling as claimed in claim 3 is turned round machine, it is characterized in that installing a clutch (9) additional before the power shaft of described gear-box.