CN2350141Y

CN2350141Y - Cold-rolled deformed reinforcing steel twisting mill

Info

Publication number: CN2350141Y
Application number: CN 98234180
Authority: CN
Inventors: 郑康平
Original assignee: 郑金
Priority date: 1998-05-06
Filing date: 1998-05-06
Publication date: 1999-11-24
Anticipated expiration: 2008-05-06

Abstract

The utility model relates to a cold-rolled deformed reinforcing steel twisting mill, comprising a power section 1, a milling part and a drive part 3, wherein, the milling part comprises two adjacent disposed roll shafts 23, 24 and rolls 25, 26 which are sheathed on the roll shafts 23, 24; the rolls 25, 26 form end cutting conical shapes; the conical surfaces are respectively provided with at least one annular groove 251 and one annular groove 261; the rolls 25, 26 and the annular grooves 251, 261 on the conical surfaces thereof make the rolling reinforcing steel be deformed into the desired shapes and caused to generate the torsional deformation. The utility model does not use a cold twisting device to make the reinforcing steel directly generate the torsional deformation; the utility model has the advantages of simple structure, convenient operation, low cost, convenience for production units and high production efficiency.

Description

Cold rolling reinforcing bar is rubbed milling train with the hands

The utility model relates to the machinery of rolled steel, particularly relates to cold rolling building iron and together seasonal its machinery that reverses.

In the machinery of the rolling reinforcing bar of prior art, employing be the steel bar cold rolling distortion after, make the reinforcing steel bar twisting distortion with the cold twisting device, as in the Chinese patent 97249397.2 being exactly this technology of employing.This rolling mill structure is complicated, not easy to operate, uses inconvenient.

The purpose of this utility model is for avoiding above-mentioned the deficiencies in the prior art, rubbing milling train with the hands for people provide a kind of simple in structure, easy to operate cold rolling reinforcing bar.

The utility model is achieved through the following technical solutions, and a kind of cold rolling reinforcing bar of power part, rolling and driving section that comprises is rubbed milling train with the hands, and rolling portion comprises the upper and lower roll mandrel and the suit roll thereon of adjacent arrangement, has guiding to chew in the roll side.Roll has butt garden taper, and at least one ring-shaped groove is respectively arranged on its conical surface.Ring-shaped groove on the roll and the conical surface thereof makes institute's steel rolling muscle be deformed into required shape, and produces torsional deflection.

Fig. 1 is the front view that the utility model cold rolling reinforcing bar is rubbed milling train with the hands.

Fig. 2 is described roll left view.

Fig. 3 is the involutory formed cavity schematic diagram of the ring-shaped groove on described two rolls.

To be that described ring-shaped groove is involutory form difform cavity schematic diagram to Fig. 4.

Be that example further describes most preferred embodiment of the present utility model in conjunction with the accompanying drawings with the cantilevered milling train below.From Fig. 1, Fig. 2, can find out a kind of cold rolling reinforcing bar stranding milling train, comprise power part 1, rolling 2 and driving section 3.Two

roll mandrels

23,24 and the suit roll 25,26 thereon that comprise adjacent arrangement for rolling 2 have guiding to chew 28 in roll 25,26 sides.Described roll 25,26 has butt garden taper, and at least one ring-shaped groove 251,261 is respectively arranged on its conical surface.Ring-shaped groove 251,261 on the roll 25,26 and the conical surface thereof makes institute's steel rolling muscle be deformed into required shape, and produces torsional deflection.From Fig. 2, Fig. 3, can find out, butt garden taper roll 25,26, both taperings are the same, itself and roll center line angle separately, look the shape angle span α of rolling reinforcing bar different section be 0～60 °.Two grooves 251,261, the section configuration of one of them is that the oral area width is slightly less than groove internal cavity width at least, forms the impetus that directly reverses.Two ring-shaped grooves 251,261 and roll 25,26 conical surface wire clamp angles, look the shape angle span α of rolling reinforcing bar different section be 0～55 °.Because the special shape of butt garden taper roll 25,26 and ring-shaped groove 251,261 design, reinforcing bar broke away from ring-shaped groove at 251,261 o'clock in rolling back, the oral area constriction of groove 251,261 produces the torsional moment that centers on rolling center to reinforcing bar, makes reinforcing bar produce torsional deflection.From Fig. 3, Fig. 4, can find out, described ring-shaped groove 251,261 on the length direction of roll 25,26 apart from same position, the shape that they are combined to form cavity 27 on the contrary be the section configuration of rolling reinforcing bar.The shape that ring-shaped groove 251,261 is combined to form cavity 27 can be circle, rectangle, cross, Three Diamond and dolioform.Roll out difform reinforcing bar according to required shape.Ring-shaped groove 251,261 on the length direction of roll 25,26 apart from close positions., each self-forming of two grooves is cavity 27 independently, and upper and lower rubbing simultaneously shuts out the reinforcing bar of direct torsional deflection separately, can make two reinforcing bars difference roll formings and twist together.Owing to adopted above-mentioned technical scheme, make the utility model not use the cold twisting device and make reinforcing bar directly produce torsional deflection, simple in structure, easy to operate, reduce cost, made things convenient for production unit, improved production efficiency.

Claims

1. a cold rolling reinforcing bar is rubbed milling train with the hands, comprise power part (1), rolling (2) and driving section (3), rolling (2) comprise two roll mandrels (23), (24) and suit roll (25), (26) thereon of adjacent arrangement, have guiding to chew (28) in roll (25), (26) side; It is characterized in that: there is butt garden taper described roll (25), (26), and at least one ring-shaped groove (251), (261) are respectively arranged on its conical surface.

2. cold rolling reinforcing bar according to claim 1 is rubbed milling train with the hands, it is characterized in that: described butt garden taper roll (25), (26), both taperings are the same, its conical surface and the angle of the center line of roll separately, look the shape angle span α of rolling reinforcing bar different section be 0～60 °

3. cold rolling reinforcing bar according to claim 1 is rubbed milling train with the hands, it is characterized in that: described two grooves (251), (261) and roll (25), (26) conical surface wire clamp angle, look its angle span of shape α of rolling reinforcing bar different section be 0～55 °.

4. cold rolling reinforcing bar according to claim 1 is rubbed milling train with the hands, it is characterized in that: described two grooves (251), (261), the section configuration of one of them is that the oral area width is slightly less than groove internal cavity width at least, forms the impetus that directly reverses.

5. cold rolling reinforcing bar according to claim 1 is rubbed milling train with the hands, it is characterized in that: described ring-shaped groove (251), (261) on the length direction of roll (25), (26) apart from same position, the shape that they are combined to form cavity (27) on the contrary be the section configuration of rolling reinforcing bar.

6. cold rolling reinforcing bar according to claim 5 is rubbed milling train with the hands, and it is characterized in that: the shape that described ring-shaped groove (251), (261) are combined to form cavity (27) can be circle, rectangle, cross, Three Diamond and dolioform.

7. cold rolling reinforcing bar according to claim 1 is rubbed milling train with the hands, it is characterized in that: described ring-shaped groove (251), (261) on the length direction of roll (25), (26) apart from close positions, each self-forming of two grooves is cavity (27) independently, and upper and lower rubbing simultaneously shuts out the reinforcing bar of direct torsional deflection separately.