CN216881132U

CN216881132U - Large-specification steel pipe straightening machine

Info

Publication number: CN216881132U
Application number: CN202220104649.8U
Authority: CN
Inventors: 何滨; 孙长胜; 刘义
Original assignee: Jinan Maike Pipeline Technology Co ltd
Current assignee: Jinan Maike Pipeline Technology Co ltd
Priority date: 2022-01-14
Filing date: 2022-01-14
Publication date: 2022-07-05
Anticipated expiration: 2032-01-14

Abstract

The utility model discloses a large-size steel pipe straightening machine which comprises a supporting structure, a lower pressing die, an upper pressing die and hydraulic cylinders, wherein the lower pressing die is arranged at the upper part of the supporting structure, the hydraulic cylinders are fixed above the supporting structure through oil cylinder supports, the upper pressing die is detachably connected with the end part of a piston rod of the hydraulic cylinder, the upper pressing die and the lower pressing die are arranged oppositely, and at least two lower pressing dies are arranged. The utility model reduces the generation of waste products, improves the qualification rate of products and reduces the production cost.

Description

Large-specification steel pipe straightening machine

Technical Field

The utility model belongs to the technical field of steel pipe machining equipment, and particularly relates to a large-specification steel pipe straightening machine.

Background

The straightening machine is equipment for straightening metal sections, bars, pipes, wires and the like. The straightener extrudes the bar material and the like through the straightening roller to change the straightness. Generally, two rows of straightening rollers are provided, and the number of the straightening rollers is different. There are also two-roll straightening machines, which straighten materials of different diameters by means of the change of angles of the two-curve rolls and the inward concave part between the two rolls. The main types of the straightening machine are a pressure straightening machine, a balance roll straightening machine, a cross roll straightening machine, a rotary reverse bending straightening machine and the like. The bending waste of the steel pipes with the DN100/DN150/DN200 specification during production causes the reduction of the qualification rate and the waste of materials, and the straightening machine for straightening the large steel pipes in the prior art also has the problems of complex structure and high cost.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art, and provides a large-size steel pipe straightening machine, which reduces the generation of waste products, improves the qualification rate of products and reduces the production cost.

In order to achieve the purpose, the utility model adopts the technical scheme that:

the utility model provides a big specification steel pipe straightener, includes bearing structure, die, last moulding-die, pneumatic cylinder down, and the die is located bearing structure upper portion down, and the pneumatic cylinder passes through the hydro-cylinder support to be fixed in the bearing structure top, and the piston rod tip of going up the moulding-die and pneumatic cylinder can be dismantled and be connected, goes up the moulding-die and sets up with the die down relatively, and the die down is equipped with two at least.

The supporting structure comprises at least two sliding rods, a vertical rod and a cross rod, the lower parts of the sliding rods are fixedly connected with the vertical rod, the lower end of the vertical rod is fixedly connected with a supporting rod, the rod body of the vertical rod is fixedly connected with the cross rod, the two supporting rods are fixedly connected with the cross rod, a lower pressing die is arranged on the sliding rods, and the lower pressing die can transversely slide on the sliding rods.

The lower pressing die comprises a plurality of supporting pieces, grooves matched with the steel pipes are formed in the upper portions of the supporting pieces, sliding grooves matched with the two sliding rods in shape are formed in the two ends of the lower portions of the supporting pieces, the supporting pieces are arranged in an aligned mode, an arc-shaped supporting plate I is arranged on the upper portion of each groove, and the supporting plate I is fixedly connected with the corresponding groove.

The adjacent supporting sheets are connected through reinforcing ribs.

The lower part of the sliding groove is provided with a second arc-shaped supporting plate which is fixedly connected with the groove.

The upper pressing die comprises a plurality of straightening pieces, the upper parts of the straightening pieces are connected with a connecting plate, the connecting plate is detachably connected with the end part of the piston rod, pressing grooves matched with the steel pipes are formed in the lower parts of the straightening pieces, the pressing grooves are fixedly connected with the arc-shaped pressing plates, and the pressing grooves are opposite to the grooves of the lower pressing die.

The oil cylinder bracket is fixedly connected with the supporting structure.

The hydraulic cylinder is connected with a hydraulic station, and the hydraulic station is arranged on the rear side or the front side of the supporting structure.

The utility model has the beneficial effects that:

1) the production of waste products is reduced, the qualification rate of products is improved, and the production cost is reduced.

2) And installing corresponding steel pipe molds according to steel pipes of different specifications, after the installation and debugging are completed, placing the bent steel pipes on a supporting mechanism, starting a hydraulic station, pushing a hydraulic cylinder, and straightening the steel pipes.

3) The lower pressing die supports two ends of the steel pipe, the upper pressing die presses downwards from the middle of the steel pipe to straighten the steel pipe, the steel pipe is placed in the lower pressing die grooves of different models, the lower pressing die cannot slide on the sliding rod easily, and the lower pressing die needs manual movement of personnel, so that the safety of straightening work is guaranteed.

4) The supporting rod and the sliding rod are thick steel pipes with large diameters, the vertical rods and the transverse rods are rear steel pipes with small diameters, and the supporting structure is high in strength, can bear high pressure and does not deform when straightening large-size steel pipes.

5) The upper pressing die and the lower pressing die can select corresponding models according to the specification of the steel pipe.

Drawings

FIG. 1 is a front view schematic diagram of a large-specification steel pipe straightener.

FIG. 2 is a side view schematic diagram of a large-specification steel pipe straightener.

FIG. 3 is a schematic view of a lower pressing die of a large-specification steel pipe straightening machine.

In the figure, 1, a sliding rod; 2. a support bar; 3. pressing a die; 4. a cylinder support; 5. pressing the die; 6. a hydraulic cylinder; 7. a vertical rod; 8. a second support plate; 9. a first support plate; 10. a support sheet;

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Example 1

Referring to fig. 1-3, the large-specification steel pipe straightener comprises a supporting structure, a lower pressing die 3, an upper pressing die 5 and hydraulic cylinders 6, wherein the lower pressing die 3 is arranged at the upper part of the supporting structure, the hydraulic cylinders 6 are fixed above the supporting structure through oil cylinder supports 4, the upper pressing die 5 is detachably connected with the end part of a piston rod of the hydraulic cylinder 6, the upper pressing die 5 is arranged opposite to the lower pressing die 3, and at least two lower pressing dies 3 are arranged.

The supporting structure comprises a slide bar 1, a vertical bar 7 and cross bars, wherein the slide bar 1 is at least provided with two slide bars, the lower part of the slide bar 1 is fixedly connected with the vertical bar 7, the lower end of the vertical bar 7 is fixedly connected with a support bar 2, the bar body of the vertical bar 7 is fixedly connected with the cross bars, the two support bars 2 are fixedly connected with the cross bars, a lower press die 3 is arranged on the slide bar 1, and the lower press die 3 can transversely slide on the slide bar 1.

The lower pressing die 3 comprises a plurality of supporting pieces 10, the upper parts of the supporting pieces 10 are provided with grooves matched with the steel pipes, the two ends of the lower parts of the supporting pieces 10 are provided with sliding grooves matched with the shapes of the two sliding rods 1, the supporting pieces 10 are arranged in an aligned mode, the upper parts of the grooves are provided with arc-shaped supporting plates 9, and the supporting plates 9 are fixedly connected with the grooves.

Adjacent support sheets 10 are connected by reinforcing ribs.

The lower part of the sliding groove is provided with a second arc-shaped supporting plate 8, and the second supporting plate 8 is fixedly connected with the groove.

The upper pressing die 5 comprises a plurality of straightening pieces, the upper parts of the straightening pieces are connected with a connecting plate, the connecting plate is detachably connected with the end part of the piston rod, pressing grooves matched with the steel pipes are formed in the lower parts of the straightening pieces, the pressing grooves are fixedly connected with the arc-shaped pressing plates, and the pressing grooves are opposite to the grooves of the lower pressing die.

The oil cylinder bracket 4 is fixedly connected with the supporting structure.

The hydraulic cylinder 6 is connected with a hydraulic station, and the hydraulic station is arranged on the rear side or the front side of the supporting structure.

The production of waste products is reduced, the qualification rate of products is improved, and the production cost is reduced.

And installing corresponding steel pipe molds according to steel pipes of different specifications, after the installation and debugging are completed, placing the bent steel pipes on a supporting mechanism, starting a hydraulic station, pushing a hydraulic cylinder 6, and straightening the steel pipes.

The lower pressing die 3 supports two ends of a steel pipe, the upper pressing die 5 presses downwards from the middle of the steel pipe to straighten the steel pipe, the steel pipe is placed in grooves of the lower pressing dies 3 of different models, the lower pressing dies 3 cannot easily slide on the sliding rods 1, and manual movement of personnel is required, so that the safety of straightening work is guaranteed.

The supporting rod 2 and the sliding rod 1 are thick steel pipes with large diameters, the vertical rod 7 and the transverse rod are rear steel pipes with small diameters, and the supporting structure is high in strength, can bear high pressure and does not deform when straightening large-size steel pipes.

The upper pressing die 5 and the lower pressing die 3 can select corresponding models according to the specification of the steel pipe.

The foregoing is merely exemplary and illustrative of the present invention, and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the utility model as defined in the accompanying claims.

Claims

1. The large-specification steel pipe straightening machine comprises a supporting structure, a lower pressing die, an upper pressing die and hydraulic cylinders, wherein the lower pressing die is arranged on the upper portion of the supporting structure, and the hydraulic cylinders are fixed above the supporting structure through oil cylinder supports.

2. The large-size steel pipe straightener as claimed in claim 1, wherein the support structure comprises at least two slide bars, a vertical bar and a cross bar, the lower part of the slide bar is fixedly connected with the vertical bar, the lower end of the vertical bar is fixedly connected with the support bar, the bar body of the vertical bar is fixedly connected with the cross bar, the two support bars are fixedly connected with the cross bar, the lower pressing die is arranged on the slide bar, and the lower pressing die can slide transversely on the slide bar.

3. The large-size steel pipe straightening machine as claimed in claim 1, wherein the lower pressing die comprises a plurality of supporting pieces, the upper parts of the supporting pieces are provided with grooves matched with the steel pipes, the two ends of the lower parts of the supporting pieces are provided with sliding grooves matched with the shapes of the two sliding rods, the supporting pieces are arranged in an aligned mode, the upper parts of the grooves are provided with first arc-shaped supporting plates, and the first supporting plates are fixedly connected with the grooves.

4. The large format steel pipe straightener of claim 3 wherein adjacent support sheets are connected by reinforcing bars.

5. The large-specification steel pipe straightening machine as claimed in claim 3, wherein the lower part of the chute is provided with a second arc-shaped supporting plate, and the second supporting plate is fixedly connected with the groove.

6. The large-specification steel pipe straightener defined in claim 1 wherein the upper die comprises a plurality of straightening plates, the upper parts of the straightening plates are connected with a connecting plate, the connecting plate is detachably connected with the end of the piston rod, the lower parts of the straightening plates are provided with press grooves matched with the steel pipes, the press grooves are fixedly connected with the arc-shaped press plates, and the press grooves are opposite to the grooves of the lower press film.

7. The large-specification steel pipe straightener of claim 1, wherein the cylinder support is fixedly connected with the support structure.

8. A large format steel pipe straightener as claimed in claim 1 wherein the hydraulic cylinder is connected to a hydraulic station located at the rear or front side of the support structure.