CN2620598Y

CN2620598Y - Cart-wheel pipe bender

Info

Publication number: CN2620598Y
Application number: CN 03239077
Authority: CN
Inventors: 王日艺; 吴志勇; 苏强
Original assignee: Liuzhou OVM Machinery Co Ltd
Current assignee: Liuzhou OVM Machinery Co Ltd
Priority date: 2003-02-26
Filing date: 2003-02-26
Publication date: 2004-06-16
Anticipated expiration: 2013-02-26

Abstract

A rolling type pipe bender comprises a frame, a bender forming mechanism and an adjustment mechanism, which is characterized in that the bender forming mechanism consists of a roller I, a roller II and a roller III; the adjustment mechanism consists of an rotary arm (6) formed with two pieces of triangular plates and a supporting shaft, a regulator rod (8) and a regulator nut (9). The roller I and roller III are respectively fixed on the frame (4) through the roller shafts; the roller II is fixed on the frame through the rotary arm by the roller shaft, the rotary arm can swing around the roller shaft of the roller II. The middle part of the regulator rod is connected and fixed with a swing shaft (7) with an adjusting nut at each end of the regulator rod; the swing shaft can roll around through a hole on the lower part of the rotary arm. Respectively the roller I and the roller II, the roller II and the roller III are kept meshing with each other. With driving of the rotary arm, the roller III can swing around the central shaft of the roller II; when screwing down the adjusting nuts on both side of the regulator rod, the roller III can be locked at a definite swing position. Without head-pushing and clamping, steel tubes can be automatically fed in, so that the utility model is easy to operate and control with high working efficiency.

Description

The roller type bending machine

Technical field

The utility model relates to a kind of construction with mechanical, particularly a kind of roller type bending machine.

Background technology

In the existing light-wall pipe swan neck system, no matter be fluid pressure type, or roller type, or need carry out clamping with certain clamping device to steel pipe, or be that steel pipe is carried out axially or the side direction pushing tow, wherein, " precise pipe bender for cold-bending cored steel pipe with push (patent No.: 90102509.7) " promptly be one of them, this machine complex structure, the assemblies such as dolly that also need to advance with the pushing tow steel pipe are assisted, can not realize the feeding of pipe fitting automated exchanged cutter, inefficiency.

Technology contents

The technical problems to be solved in the utility model is: existing roller type bending machine complex structure, unhandy problem, provide a kind of and need not pushing tow, need not clamping, steel pipe gets final product auto-feed, and roller type bending machine simple in structure, compact, easy to operate, that efficient is high.

The technical scheme that solves its above-mentioned technical problem is: adopt vertical three rollers of arranging, and utilize the steel pipe deadweight to clamp automatically.Concrete structure is: a kind of, form by frame, bending tube forming mechanism, guiding mechanism, drive system, control system, transmission system, described transmission system is made up of gearbox, pinion, it is characterized in that: described bending tube forming mechanism is made of roller I, roller II, roller III; Described guiding mechanism is made up of the pivoted arm, adjusting lever, the adjustment nut that constitute with two triangular plate pieces and back shaft, and roller I, roller III directly are fixed on the frame by its roller shaft respectively; Roller II is fixed on the frame by its roller shaft and the triangular plate piece that passes pivoted arm, and the triangular plate piece of pivoted arm can be around the roller shaft swing of roller II; U-shaped hole, middle part and the swinging axle that adjusting lever passes frame is fixedly linked, its two ends respectively have one to adjust nut, rotate in can the rotate hole of triangular plate piece lower end of arm of swinging axle, roller I and roller II, roller II and roller III remain engagement respectively, under the drive of pivoted arm, roller III can swing in 0 °～45 ° pendulum angle scope around the roller shaft of roller II, in this pendulum angle scope, the adjustment nut of tightening the adjusting lever two ends can be locked in roller III on a certain pendulum angle position roller II and pinion.

As a kind of conversion of the present utility model, also have a pointer and dial on the described guiding mechanism, the big end of pointer is fixed on the swinging axle and can on the dial on the frame back scale be arranged with the rotation campaign of swinging axle.

Because adopt said structure, the roller type bending machine of the utility model has following beneficial effect:

1, need not pushing tow, need not clamping, steel pipe can auto-feed carry out bending;

During use, by adjusting the adjustment nut at adjusting lever two ends, can drive pivoted arm and be rocked to the relevant position to the upper right side, roller I then packs steel pipe into, in the groove that roller II forms, at this moment steel pipe will depend on deadweight and the roller I of self, roller II clamps, starter motor, motor-driven roller I, roller II, roller III3 direction of arrow rotation as shown in Figure 1, by the gear ring effect, roller I and roller II, roller II and roller III3 keep engagement all the time respectively, rely on the effect of frictional force, roller I, roller II pushes way roller III with steel pipe, after steel pipe is met roller III, produce little distortion in the time of with the generation bending, so steel pipe is full of by roller I, roller II, the pipe die that roller III constitutes, frictional force is along with the bending of steel pipe continues to increase, thereby steel pipe will be forced to the bending radius that logical roller III obtains setting in the deformation range of allowing.

2, simple to operate, controllability good, high efficiency.

Pivoted arm of the present utility model is made of two triangular plate pieces and a back shaft, the hole of two triangle plate upper end can be around the roller shaft rotation of roller II, rotate in can the rotate hole of triangular plate piece lower end of arm of swinging axle, roller I and roller II, roller II and roller III remain engagement respectively, the adjustment nut that rotates the adjusting lever two ends promotes adjusting lever, drive the pivoted arm swing by the swinging axle of fixedlying connected with adjusting lever, under the drive of pivoted arm, roller III can swing in 0 °～45 ° pendulum angle scopes around the axle center of roller II, in this pendulum angle scope, the adjustment nut of tightening the adjusting lever two ends can be locked in roller III on a certain pendulum angle position, can obtain required setting bending radius; Bending radius can be from 4m to the stepless adjustment of infinitely great realization;

By be fixed on the frame, and the pointer that can rotate with pivoted arm and the indication on the panel, can determine unique position of roller III, and then show the bending radius that sets.

By changing the parameter of roller (pipe die), can adapt to the needs of crooked different-diameter steel pipe.

3,, can further guarantee to manage two ends circularity near 100% behind the tube bending if use supporting Bent tube stopper.

Description of drawings:

Fig. 1: the utility model roller type bending machine structural representation (front view);

Fig. 2: the utility model roller type bending machine structural representation (left view);

Fig. 3: the utility model roller type bending machine structural representation (rearview);

Fig. 4: the utility model roller type bending machine structural representation (vertical view);

The A-A diagrammatic cross-sectional view of Fig. 5: Fig. 1;

The specific embodiment:

Below, the technical characterictic to the utility model roller type bending machine is further described in conjunction with the accompanying drawings and embodiments.

Embodiment:

A kind of roller type bending machine, form by frame, bending tube forming mechanism, guiding mechanism, drive system, control system, transmission system, described transmission system is made up of gearbox, pinion, belt, and described bending tube forming mechanism is made of roller I1, roller II2, roller III3; Described guiding mechanism is made up of the pivoted arm 6 that constitutes with two triangular plate pieces 17 and back shaft 18, adjusting lever 8, adjustment nut 9, and roller I1, roller III3 directly are fixed on the frame 4 by its roller shaft respectively; Roller II2 is fixed on the frame 4 by its roller shaft 16 and the triangular plate piece 17 that passes pivoted arm 6, and the triangular plate piece 17 of pivoted arm 6 can be around roller shaft 16 swings of roller II2; Adjusting lever 8 passes the U-shaped hole of frame, the middle part is fixedly linked with swinging axle 7, its two ends respectively have one to adjust nut 9, rotate in can the rotate hole of triangular plate piece 16 lower ends of arm 6 of swinging axle 7, roller I1 and roller II2, roller II2 and roller III3 remain engagement respectively, under the drive of pivoted arm 6, roller III3 can swing in 0 °～45 ° pendulum angle scope around the roller shaft 16 of roller II2, in this pendulum angle scope, the adjustment nut 9 of tightening adjusting lever 8 two ends can be locked in roller III3 on a certain pendulum angle position, and 15 engagements of roller II2 and pinion are (referring to Fig. 1～Fig. 6).Among the figure, the roller shaft of 5-roller III3,10-gearbox.

The motor 11 of described drive system can adopt arrangement illustrated, also can be placed on other correct positions, and control system adopts control control far away, and among the figure, 12 is remote control box.

As a kind of conversion of the utility model embodiment, also have a pointer 14 and dial 13 on the described guiding mechanism, pointer 14 big ends are fixed on the swinging axle and can on the dial on the frame back scale be arranged with the rotation campaign of swinging axle 7.

Claims

1, a kind of roller type bending machine, by frame, bending tube forming mechanism, guiding mechanism, drive system, control system, transmission system is formed, described transmission system is by gearbox, pinion, belt is formed, it is characterized in that: described bending tube forming mechanism is by roller I (1), roller II (2), roller III (3) constitutes, described guiding mechanism is by the pivoted arm (6) that constitutes with two triangular plate pieces (17) and back shaft (18), adjusting lever (8), adjust nut (9) and form roller I (1), roller III (3) directly is fixed on the frame (4) by its roller shaft respectively; Roller II (2) is fixed on the frame (4) by its roller shaft (16) and the triangular plate piece (17) that passes pivoted arm (6), and the triangular plate piece (17) of pivoted arm (6) can be around roller shaft (16) swing of roller II (2); U-shaped hole, middle part and the swinging axle (7) that adjusting lever (8) passes frame is fixedly linked, its two ends respectively have one to adjust nut (9), rotate in can the rotate hole of triangular plate piece (16) lower end of arm (6) of swinging axle (7), roller I (1) and roller II (2), roller II (2) and roller III (3) remain engagement respectively, under the drive of pivoted arm (6), roller III (3) can swing in 0 °～45 ° pendulum angle scope around the roller shaft (16) of roller II (2), roller II (2) and pinion (15) engagement.

2, roller type bending machine as claimed in claim 1 is characterized in that: also have a pointer (14) and dial (13) on the described guiding mechanism, the big end of pointer (14) is fixed on swinging axle (7) upward also can be with the rotation campaign of swinging axle (7).