CN209986030U

CN209986030U - Prestraightening machine for producing cold-drawn precise seamless steel pipe

Info

Publication number: CN209986030U
Application number: CN201920738749.4U
Authority: CN
Inventors: 吴科
Original assignee: Wuxi Qianzhou Seamless Steel Tube Co Ltd
Current assignee: Wuxi Qianzhou Seamless Steel Tube Co Ltd
Priority date: 2019-05-22
Filing date: 2019-05-22
Publication date: 2020-01-24
Anticipated expiration: 2029-05-22

Abstract

The utility model discloses a production of accurate seamless steel pipe of cold drawing is with straightening machine in advance, which comprises a bod, the connecting rod has all been welded to the upper end four corners position of fuselage, the upper end tip welding of connecting rod has the mounting panel, the symmetry is provided with the aligning mechanism of mutually supporting on fuselage and the mounting panel, aligning mechanism install bin, the inside sliding connection of install bin has the ejector pad, be provided with the spring between the one end of ejector pad and the inside bottom of install bin, the spring is located the inside of install bin, the one end tip that the spring was kept away from to the ejector pad runs through the tank wall of install bin and extends to the outside, the one end tip that the spring was kept away from to the ejector pad has U type mounting bracket through the bolt fastening, the centre of U type mounting bracket is rotated and is connected with the correction roller, aligning mechanism centre. The steel pipe with larger curvature is pre-corrected through the structure, the subsequent straightening machine is protected, and the service life of the straightening machine is prolonged.

Description

Prestraightening machine for producing cold-drawn precise seamless steel pipe

Technical Field

The utility model belongs to the technical field of the steel pipe is straightener in advance, concretely relates to accurate seamless steel pipe production of cold drawing is with straightening machine in advance.

Background

The seamless steel pipe is a long steel bar having a hollow cross section and having no joint at the periphery, and the rolling method of the seamless steel pipe is divided into hot rolling, hot extrusion and cold drawing of the stainless steel pipe. The semi-ferrite semi-martensite stainless steel pipe, the austenite-ferrite stainless steel pipe and the like are divided according to different stainless steel metallographic structures.

The straightening device for producing the seamless steel tube is necessary to design a pre-straightening device for producing the seamless steel tube in view of the facts that the seamless steel tube needs to be straightened after being taken off and cooled, but the degree of curvature of part of the steel tube is larger due to uneven material or uneven cooling, the bent steel tube is usually directly corrected by a straightening machine at present, but the degree of curvature of the steel tube is larger, the reaction force generated by the straightening process to the straightening machine is large, the straightening machine is easy to damage, the service life of equipment is shortened, sometimes even the straightening machine is blocked, the equipment is seriously damaged, and meanwhile potential safety hazards are brought.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a production of accurate seamless steel pipe of cold drawing is with straightening machine in advance carries the steel pipe that the crookedness is big in straightening mechanism, because set up the spring in straightening mechanism, the tight steel pipe of straightening roller clamp is the flexible clamp tight, avoids the card dead circumstances to take place, and then realizes the pre-straightening to the steel pipe to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a production of accurate seamless steel pipe of cold drawing is with straightening machine in advance, includes the fuselage, the connecting rod has all been welded to the upper end four corners position of fuselage, the upper end tip welding of connecting rod has the mounting panel, the symmetry is provided with aligning mechanism of mutually supporting on fuselage and the mounting panel, aligning mechanism's install bin, the inside sliding connection of install bin has the ejector pad, be provided with the spring between the one end of ejector pad and the inside bottom of install bin, the spring is located the inside of install bin, the one end tip that the spring was kept away from to the ejector pad runs through the tank wall of install bin and extends to the outside, the one end tip that the spring was kept away from to the ejector pad has U type mounting bracket through the bolt fastening, the centre of U type mounting bracket is rotated and is connected with the correction roller.

Preferably, the two sides of the end part of one end, far away from the U-shaped mounting frame, of the push block are provided with limiting blocks, and the limiting blocks are located inside the mounting box.

Preferably, a spring positioning pin is sleeved inside one end, far away from the push block, of the spring, the spring positioning pin is fixed inside the installation box, and a conical chamfer is arranged at the end part of the spring positioning pin.

Preferably, a support frame is arranged at an inlet of the machine body, a conveying roller is rotatably connected to the middle of the upper end of the support frame through a bearing, and one end, far away from the straightening mechanism, of the steel pipe is placed on the conveying roller.

Preferably, fences are welded on two sides of the upper end of the support frame, and self-locking universal wheels are fixed on the end portion of the lower end of the support frame through bolts.

Preferably, the lower extreme tip welding of fuselage has the supporting leg, the lower extreme tip welding of supporting leg has the stainless steel base.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a be provided with straightening mechanism on fuselage and mounting panel, straightening mechanism is last, down, a left side, four right direction symmetries set up, the steel pipe passes from the centre of four straightening mechanisms, push away the ejector pad and slide forward under the spring action of spring, and then drive U type mounting bracket and slide forward, and then U type mounting bracket drives the correction roller and moves forward, and then four surface contact of correcting roller and steel pipe, the steel pipe passes in-process straightening mechanism and extrudees it and realizes correcting at four straightening mechanisms's centre, and then the crookedness that makes the steel pipe reduces greatly, the correction of the follow-up straightener of being convenient for.

Drawings

FIG. 1 is a block diagram of the present invention;

FIG. 2 is a schematic view of the installation position of the straightening mechanism of the present invention;

FIG. 3 is a view showing the structure of the straightening mechanism of the present invention.

Reference numerals: 1. a body; 2. a connecting rod; 3. mounting a plate; 4. a straightening mechanism; 401. installing a box; 402. a push block; 403. a spring; 404. a U-shaped mounting frame; 405. a leveling roller; 406. a limiting block; 407. a spring positioning pin; 408. conical chamfering; 5. a steel pipe; 6. a support frame; 7. a conveying roller; 8. a fence; 9. a self-locking universal wheel; 10. supporting legs; 11. a stainless steel base.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a production of accurate seamless steel pipe of cold-drawing is with straightening machine in advance, including fuselage 1, connecting rod 2 has all been welded to the upper end four corners position of fuselage 1, the upper end tip welding of connecting rod 2 has mounting panel 3, the symmetry is provided with aligning mechanism 4 of mutually supporting on fuselage 1 and the mounting panel 3, aligning mechanism 4 install bin 401, the inside sliding connection of install bin 401 has ejector pad 402, be provided with spring 403 between the one end of ejector pad 402 and the inside bottom of install bin 401, spring 403 is located the inside of install bin 401, the one end tip that spring 403 was kept away from to ejector pad 402 runs through the tank wall of install bin 401 and extends to the outside, the one end tip that spring 403 was kept away from to ejector pad 402 has U type mounting bracket 404 through the bolt fastening, the intermediate rotation of U type mounting bracket 404 is connected with correction roller 405, it has steel pipe.

The device is usually installed at the inlet of a straightening machine and used in cooperation with the straightening machine, the steel pipe 5 slides in the straightening mechanism 4 by means of the traction force of the straightening machine, and then the steel pipe 5 with larger curvature is pre-corrected to reduce the curvature of the steel pipe 5, and then the steel pipe enters the subsequent straightening machine for further straightening.

Furthermore, two sides of the end portion of one end of the push block 402 away from the U-shaped mounting frame 404 are provided with a limit block 406, and the limit block 406 is located inside the mounting box 401. The push block 402 is prevented from sliding out of the installation box 401, and a limiting protection effect is achieved.

Further, a spring positioning pin 407 is sleeved inside one end, away from the push block 402, of the spring 403, the spring positioning pin 407 is fixed inside the installation box 401, and a tapered chamfer 408 is arranged at an end portion of the spring positioning pin 407. The spring positioning pin 407 has the function of limiting the spring 403, the spring 403 is prevented from moving, the limiting and protecting functions are achieved, and the conical chamfer 408 is convenient for the spring 403 to be inserted into the spring positioning pin 407 and convenient to mount.

Further, a supporting frame 6 is arranged at an inlet of the machine body 1, a conveying roller 7 is rotatably connected to the middle of the upper end of the supporting frame 6 through a bearing, and one end, far away from the straightening mechanism 4, of the steel pipe 5 is placed on the conveying roller 7. The steel pipe 5 is supported, and feeding of the steel pipe 5 is facilitated.

Furthermore, fences 8 are welded on two sides of the upper end of the support frame 6, and self-locking universal wheels 9 are fixed on the end portion of the lower end of the support frame 6 through bolts. The setting of fence 8 prevents that steel pipe 5 from the both sides roll-off of support frame 6, plays limiting displacement, auto-lock universal wheel 9 sets up the removal that makes things convenient for the device and fixes, improves the mobility and the flexibility of support frame 6.

Further, the lower end part of the machine body 1 is welded with a supporting leg 10, and the lower end part of the supporting leg 10 is welded with a stainless steel base 11. The contact area of the device and the ground is improved, and the firmness and the stability of the device mounted on the ground are improved.

The structure principle is as follows: through being provided with straightening mechanism 4 on fuselage 1 and mounting panel 3, straightening mechanism 4 is at last, down, left and right four direction symmetry sets up, steel pipe 5 passes from four straightening mechanism 4's centre, promote ejector pad 402 and slide forward under the spring action of spring 403, and then drive U type mounting bracket 404 and slide forward, and then U type mounting bracket 404 drives correction roller 405 and moves forward, and then four correction roller 405 and steel pipe 5's surface contact, steel pipe 5 passes in-process straightening mechanism 4 in the middle of four straightening mechanisms 4 and extrudes it and realize correcting, and then make steel pipe 5's crookedness reduce greatly, the correction of the follow-up straightener of being convenient for.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a production of accurate seamless steel pipe of cold drawing is with straightening machine in advance, includes fuselage (1), its characterized in that: the upper end four corners position of fuselage (1) all welds connecting rod (2), the upper end tip welding of connecting rod (2) has mounting panel (3), the symmetry is provided with aligning mechanism (4) of mutually supporting on fuselage (1) and mounting panel (3), aligning mechanism (4) install bin (401), the inside sliding connection of install bin (401) has ejector pad (402), be provided with spring (403) between the inside bottom of one end of ejector pad (402) and install bin (401), spring (403) are located the inside of install bin (401), the one end tip that spring (403) were kept away from to ejector pad (402) runs through the tank wall of install bin (401) and extends to the outside, the one end tip that spring (403) were kept away from to ejector pad (402) has U type mounting bracket (404) through the bolt fastening, the centre of U type mounting bracket (404) is rotated and is connected with correction roller (405), and a steel pipe (5) is clamped in the middle of the straightening mechanism (4).

2. The pre-straightening machine for producing the cold-drawn precise seamless steel tube according to claim 1, which is characterized in that: two sides of the end part of one end, far away from the U-shaped mounting frame (404), of the push block (402) are provided with limit blocks (406), and the limit blocks (406) are located inside the mounting box (401).

3. The pre-straightening machine for producing the cold-drawn precise seamless steel tube according to claim 1, which is characterized in that: spring locating pin (407) has been cup jointed to spring (403) keep away from the inside of one end of ejector pad (402), spring locating pin (407) are fixed in the inside of install bin (401), the tip of spring locating pin (407) is provided with toper chamfer (408).

4. The pre-straightening machine for producing the cold-drawn precise seamless steel tube according to claim 1, which is characterized in that: a supporting frame (6) is arranged at an inlet of the machine body (1), a conveying roller (7) is rotatably connected to the middle of the upper end of the supporting frame (6) through a bearing, and one end, far away from the straightening mechanism (4), of the steel pipe (5) is placed on the conveying roller (7).

5. The pre-straightening machine for producing the cold-drawn precise seamless steel tube according to claim 4, characterized in that: fence (8) are welded on two sides of the upper end of the support frame (6), and self-locking universal wheels (9) are fixed on the end portions of the lower end of the support frame (6) through bolts.

6. The pre-straightening machine for producing the cold-drawn precise seamless steel tube according to claim 1, which is characterized in that: the lower extreme tip welding of fuselage (1) has supporting leg (10), the lower extreme tip welding of supporting leg (10) has stainless steel base (11).