CN201257465Y

CN201257465Y - Sectional steel cold-bending machine

Info

Publication number: CN201257465Y
Application number: CNU2008200994534U
Authority: CN
Inventors: 邹扬华
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-07-16
Filing date: 2008-07-16
Publication date: 2009-06-17
Anticipated expiration: 2018-07-16

Abstract

The utility model relates to a cold section steel bending machine comprising a stand, a thrusting slide rail frame, a thrusting roller frame, thrusting rollers arranged on the thrusting roller frame, and a first driving roller and a second driving roller symmetrically arranged on two sides of the thrusting slide rail frame. The thrusting roller frame is connected with a jack arranged on the stand; the first driving roller is matched with a first electric motor and a speed reducer which are arranged on the stand; and the second driving roller is matched with a second electric motor and a speed reducer which are arranged on the stand. The cold section steel bending machine is characterized in that the stand is provided with four groups of guiding rotary drums parallel with the thrusting slide rail frame; the first group of guiding rotary drums and the second group of guiding rotary drums are arranged on both sides of the first driving roller; and the third group of guiding rotary drums and the fourth group of guiding rotary drums are arranged at both sides of the second driving roller. Because four groups of guiding rotary drums parallel with the thrusting slide rail frame are arranged on the stand, the distortion and the irregular deformation of the bent section steel can be effectively avoided.

Description

A kind of shaped steel forming mill

Technical field

The utility model relates to a kind of shaped steel forming mill, especially for the forming mill of I-steel.

Background technology

In bridge, constructing tunnel process, often need shaped steel such as straight I-steel, channel-section steel are curved circular arc.Easy method is to cut out a plurality of leg-of-mutton breach on one side of shaped steel, curves circular arc again, makes the breach closure, then, and the typing of welded closed seam.The circular arc shaped steel that adopts this method to make, not only production efficiency is low, and circular arc is unsmooth.The employing forming mill that has curves circular arc with it, but owing to have defective on the existing forming mill structure, causes the shaped steel that bends to produce distortion and irregular distortion, does not meet instructions for use.Therefore, need be improved existing forming mill.

Summary of the invention

The purpose of this utility model provides a kind of shaped steel forming mill, and it is simple in structure, can prevent effectively that the shaped steel that is bent from producing distortion and irregular distortion.

A kind of shaped steel forming mill described in the utility model, comprise support, be located by connecting on support middle part pushing sliding rail frame, be located at pushing on the sliding rail frame the thrust roller frame and establish thereon thrust roller, be symmetricly set on first driving rolls and second driving rolls on pushing sliding rail frame both sides, the thrust roller frame is connected with jack on being located at support, first driving rolls cooperates with first motor and decelerator on being located at support, second driving rolls cooperates with second motor and decelerator on being located at support, it is characterized in that: support be provided with four groups with pushing sliding rail frame parallel guide pulley, first group of guide pulley and second group of guide pulley are positioned at the both sides of first driving rolls, the 3rd group of guide pulley and the 4th group of guide pulley are positioned at the both sides of second driving rolls, first group of guide pulley and the 4th group of guide pulley symmetry, the 3rd group of guide pulley and second group of guide pulley symmetry.

Described a kind of shaped steel forming mill, its first group of guide pulley, second group of guide pulley, the 3rd group of guide pulley and the 4th group of guide pulley are formed by two cylinders, the two ends of cylinder all cooperate with the guide pulley chute that is vertically connected on support by rolling bearing, are provided with adjustment screw in the upper end of per pass guide pulley chute.

The utility model compared with prior art has the following advantages: since support be provided with four groups with push the parallel guide pulley of sliding rail frame, the shaped steel that is bent is spacing through four groups of guide pulleys, so, can prevent effectively that the shaped steel that is bent from producing distortion and irregular distortion, meets the requirements the shaped steel that bends.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the vertical view of Fig. 1.

Fig. 3 is the structural representation of guide pulley.

Fig. 4 is the schematic diagram that the utility model bends the arc I-steel.

The specific embodiment

Referring to Fig. 1, Fig. 2, will push the middle part that sliding rail frame 2 is welded on support 1, thrust roller 4 is installed on the thrust roller frame 3 again, then, the thrust roller frame is installed on the pushing sliding rail frame 2, and the jack 7 on making the thrust roller frame and being installed in support is connected;

First driving rolls 5 and second driving rolls 6 are installed in the both sides that push sliding rail frame symmetrically, and first motor on making first driving rolls and being installed in support and decelerator 8 cooperate, and second driving rolls cooperates with second motor and decelerator 9 on being installed in support;

Referring to Fig. 1, Fig. 2 and Fig. 3, four rolling bearings 14 are installed in the two ends of two cylinders respectively, and cooperate with twice guide pulley chute 15, two adjustment screw 16 are engaged in the upper end of twice guide pulley chute respectively, the lower end of two adjustment screw contacts with the rolling bearing pedestal at top cylinder two ends respectively, promptly constitutes one group of guide pulley; Then, four groups of guide pulleys are installed on the support 1, and, and the both sides that make first group guide pulley 10 and second group guide pulley 11 be positioned at the both sides of first driving rolls 5, three group guide pulley 12 and four group guide pulley 13 be positioned at second driving rolls 6, first group guide pulley and four group guide pulley symmetry, three group guide pulley and second group guide pulley symmetrical get final product parallel with pushing sliding rail frame 2.

Referring to Fig. 4, I-steel 17 is passed first group of guide pulley 10 successively, second group of guide pulley 11, pushing sliding rail frame 2, the 3rd group of guide pulley 12 and the 4th group of guide pulley 13, and a side of I-steel is contacted with thrust roller 4, opposite side contacts with second driving rolls 6 with first driving rolls 5, regulate the adjustment screw 16 of guide pulley chute 15 upper ends of every group of guide pulley, two cylinders of every group of guide pulley are contacted with I-steel, then, start first motor and decelerator 8 and second motor and decelerator 9, forward or reverse, I-steel is moved around in four groups of guide pulleys, simultaneously, operation jack 7 makes thrust roller 4 pushing I-steel make it to be bent into gradually the circular arc that needs.

Claims

1, a kind of shaped steel forming mill, comprise support (1), be located by connecting on support middle part pushing sliding rail frame (2), be located at pushing on the sliding rail frame thrust roller frame (3) and establish thereon thrust roller (4), be symmetricly set on first driving rolls (5) and second driving rolls (6) on pushing sliding rail frame both sides, thrust roller frame (3) is connected with jack (7) on being located at support (1), first driving rolls (5) cooperates with first motor and decelerator (8) on being located at support (1), second driving rolls (6) cooperates with second motor and decelerator (9) on being located at support (1), it is characterized in that: support (1) be provided with four groups with pushing sliding rail frame parallel guide pulley, first group of guide pulley (10) and second group of guide pulley (11) are positioned at the both sides of first driving rolls (5), the 3rd group of guide pulley (12) and the 4th group of guide pulley (13) are positioned at the both sides of second driving rolls (6), first group of guide pulley and the 4th group of guide pulley symmetry, the 3rd group of guide pulley and second group of guide pulley symmetry.

2, a kind of shaped steel forming mill according to claim 1, it is characterized in that: first group of guide pulley (10), second group of guide pulley (11), the 3rd group of guide pulley (12) and the 4th group of guide pulley (13) are formed by two cylinders, the two ends of cylinder all cooperate with the guide pulley chute (15) that is vertically connected on support (1) by rolling bearing (14), are provided with adjustment screw (16) in the upper end of per pass guide pulley chute.