CN107931359B - Spiral steel pipe blank joint roller device and spiral steel pipe tubulation system - Google Patents
Spiral steel pipe blank joint roller device and spiral steel pipe tubulation system Download PDFInfo
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- CN107931359B CN107931359B CN201711444724.5A CN201711444724A CN107931359B CN 107931359 B CN107931359 B CN 107931359B CN 201711444724 A CN201711444724 A CN 201711444724A CN 107931359 B CN107931359 B CN 107931359B
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- Prior art keywords
- steel pipe
- tube blank
- blank
- plate
- seat
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/12—Making tubes or metal hoses with helically arranged seams
- B21C37/127—Tube treating or manipulating combined with or specially adapted for use in connection with tube making machines, e.g. drawing-off devices, cutting-off
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a spiral steel pipe blank joint roller device and a spiral steel pipe manufacturing system, comprising a hanging seat, a joint roller mechanism and a translation limiting mechanism; the hanging seat comprises a supporting arm which is parallel to the axis of the spiral steel pipe to be processed; the joint roller mechanism includes: the guide seat is limited on the support arm in a sliding way, and the joint roller is assembled on the guide seat and is provided with a limiting ring groove for limiting the head end of the tube blank; and the translation limiting mechanism is used for driving the joint roller mechanism to translate towards the spiral joint meshing center direction of the tube blank on the supporting arm. According to the embodiment of the invention, the joint roller mechanism is driven by the translation limiting mechanism to push and adjust the head end of the tube blank in the tube blank adjusting stage of the large-caliber spiral steel tube, so that the free edge of the tube blank is fully attached to the delivery edge of the steel belt, the phenomenon of the seam slotting of the tube blank near the meshing center of the seam is eliminated, and the subsequent inner welding and outer welding processes are ensured to be smoothly carried out; the waste reduction probability of the tube blank is reduced to the greatest extent.
Description
Technical Field
The invention belongs to the technical field of processing of spiral steel pipes with ultra-large pipe diameters, and particularly relates to a seam-closing roller device for a spiral steel pipe blank and a spiral steel pipe making system.
Background
In recent years, the pipe diameter specification of water delivery steel pipes in market demand is gradually increased, and when the traditional three-roller bent plate external control roller type spiral forming mode is used for producing common steel pipes with large pipe diameter (more than phi 2032), the difficulty of adjusting the shape of the steel pipes is higher; especially when the diameter-thickness ratio of the steel pipe is more than or equal to 120, the yield strength of the base metal is generally low, and the phenomena of positive and negative misalignment, low head at the head end of the pipe blank, excessive geometric dimensions of the pipe type and the like are extremely easy to occur on the delivery edge of the steel belt and the free edge of the pipe blank in the profile adjusting process, so that the profile adjusting pipe blank cannot be subjected to subsequent internal and external welding procedures, and finally, the profile adjusting pipe sections with a plurality of screw pitches are reduced due to excessive critical technical indexes such as pipe diameter, ovality, misalignment, welding seam leakage and the like; when the pipe diameter and the wall thickness of the steel pipe are large, the pipe blank with a plurality of screw pitches is reduced to waste, so that the cost of materials with a plurality of tons is lost.
The key pipe making equipment of the spiral steel pipe is provided with a delivery machine, a shaper, a centralizer and other auxiliary equipment devices, and after the pipe blank is shaped, two working procedures of internal welding and external welding are needed. Because of process limitations, the outer weld spot is typically one half pitch after the center of rotation of the tube blank (i.e., near the inner weld spot), the centralizer that joins the outer weld is further from the center of rotation of the tube blank, typically at more than two pitches. In the process of adjusting the shape of the steel pipe, after the steel belt is spirally formed by a three-roller plate bender and exceeds one screw pitch, the free edge of the pipe blank is meshed with the delivery edge of the steel belt to form a spiral steel pipe, and the distance between the head end of the pipe blank and the nearest forming roller or the supporting roller of the centralizer is one screw pitch; the head end of the tube blank is subjected to gravity influence to cause the spiral seam to be slotted near the meshing center of the spiral seam of the tube blank, so that the processes of tube blank forming and internal and external welding are severely restricted.
Disclosure of Invention
The embodiment of the invention aims to provide a spiral steel pipe blank joint roller device and a spiral steel pipe manufacturing system, which aim to solve the technical problem of spiral joint slotting near the meshing center of a spiral joint of a pipe blank.
In order to achieve the above purpose, the invention adopts the following technical scheme: a seam-closing roller device for a spiral steel pipe blank comprises a hanging seat, a seam-closing roller mechanism and a translation limiting mechanism;
the hanging seat comprises a supporting arm parallel to the axis of the spiral steel pipe to be processed;
the joint roller mechanism includes: the guide seat is limited on the support arm in a sliding way, and the joint roller is assembled on the guide seat and is provided with a limiting ring groove for limiting the head end of the tube blank;
and the translation limiting mechanism is used for driving the joint roller mechanism to translate towards the spiral joint meshing center direction of the tube blank on the supporting arm.
Further, the spiral steel pipe blank joint roller device further comprises:
the guide rod is arranged on the hanging seat and is parallel to the supporting arm;
the guide seat is provided with an assembly hole, and the guide seat is limited on the guide rod in a sliding way through the assembly hole.
Further, the hanging seat further comprises a seat body and a positioning plate, and the supporting arm and the guide rod are limited between the seat body and the positioning plate;
the base body is used for being connected with the side wall of the inner control roller of the former;
the positioning plate is also used for assembling the translation limiting mechanism.
Further, the translation limiting mechanism comprises a screw nut pair, wherein the screw nut is assembled on the hanging seat, the translation end of the screw rod is contacted with the guide seat, and the guide seat is driven to translate towards the meshing center direction of the spiral seam of the tube blank.
Further, the guide seat comprises a supporting vertical plate and a joint roller assembly plate arranged at the lower part of the supporting vertical plate;
the upper part of the supporting vertical plate is limited on the supporting arm and has a sliding degree of freedom relative to the supporting arm, and the lower part of the supporting vertical plate extends downwards to be matched with the height of the head end of the tube blank;
the joint roller assembly plate is used for assembling the joint roller.
The support arm comprises two rectangular pipes which are symmetrically arranged on the hanging seat in parallel;
the support riser is spacing between two the opposite lateral wall of rectangular pipe, and be equipped with the beam slab perpendicularly on the support riser, the beam slab bridge is jumped and is put at two the upper surface of rectangular pipe.
The invention also provides a spiral steel pipe making system which comprises a delivery machine, a shaper, a centralizer and the spiral steel pipe blank joint roller device.
The tube blank joint roller device provided by the embodiment of the invention has the beneficial effects that: compared with the prior art, the joint roller mechanism can be driven by the translation limiting mechanism at the tube blank adjusting stage of the large-caliber spiral steel tube, so that the head end of the tube blank is pushed and adjusted, the free edge of the tube blank is fully attached to the delivery edge of the steel belt, the phenomenon of the seam slotting of the spiral seam near the meshing center of the tube blank is eliminated, and the subsequent inner welding and outer welding processes are ensured to be smoothly carried out; the waste reduction probability of the tube blank is reduced to the greatest extent.
Drawings
FIG. 1 is a state diagram of the tube blank joint roller device provided by the embodiment of the invention;
FIG. 2 is a perspective view of the tube blank seaming roll apparatus of FIG. 1;
FIG. 3 is a view in the direction A of FIG. 2;
fig. 4 is a schematic perspective view of the guide holder in fig. 2.
Reference numerals:
10-hanging seat 11-seat body 12-supporting arm
13-locating plate 20-joint roller mechanism 21-beam plate
22-support vertical plate 23-joint roller 24-joint roller assembly plate
25-reinforcing vertical plate 26-limiting plate 27-second sliding plate
28-first slide plate 30-translation limiting mechanism 31-lead screw
32-nut 40-guide rod 51-steel belt delivery edge
52-free edge 53-head end of tube blank
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The embodiment of the invention is provided with the joint roller with the limiting ring groove, is used for limiting and clamping the head end of the tube blank, and drives the joint roller mechanism to translate through the translation limiting mechanism, so that the head end of the tube blank moves towards the meshing center direction of the spiral seam of the tube blank, the purpose of tightly meshing the free edge of the tube blank and the delivery edge of the steel belt is finally realized, and the defect of slotting in the adjustment process is avoided.
Referring to fig. 1 and 2, a tube blank joint roller device provided by the present invention will now be described. The tube blank joint roller device comprises a hanging seat 10, a joint roller mechanism 20 and a translation limiting mechanism 30. The hanging seat 10 comprises a supporting arm 12, wherein the supporting arm 12 is parallel to the axis of a spiral steel pipe to be processed and is used for limiting the joint roller mechanism 20. The joint roller mechanism 20 comprises a guide seat and a joint roller 23, wherein the guide seat is limited on the support arm 12 in a sliding way, the joint roller 23 is provided with a limiting ring groove for limiting the head end 53 of the tube blank, and the limiting ring groove is used for supporting the head end 53 of the tube blank and preventing the head end of the tube blank from slipping. The translation limiting mechanism 30 is used for driving the joint roller mechanism 20 to translate towards the meshing center direction of the spiral seam of the tube blank on the supporting arm 12, so that the free edge 52 of the tube blank is driven to be fully attached to the delivery edge 51 of the steel strip, the subsequent welding process is facilitated, the seam slotting of the welded weld joint can be prevented, the waste reduction probability of the tube blank is reduced, and the quality of the spiral steel tube is improved.
Further, the tube blank joint roller device further comprises a guide rod 40, the guide rod 40 is a round and smooth cylinder, is arranged on the hanging seat 10 and is parallel to the supporting arm 12 and used for sliding guide of the guide seat, an assembly hole matched with the guide rod 40 is formed in the guide seat, and the guide seat is limited on the guide rod 40 in a sliding manner through the assembly hole, and is see through holes in fig. 4. The guide rod 40 is arranged, so that the translation of the guide seat is more stable.
Referring to fig. 3, the hanging seat 10 further includes a seat body 11 and a positioning plate 13, and the supporting arm 12 and the guiding rod 40 are fixed between the seat body 11 and the positioning plate 13. One end of the supporting arm 12 is connected to the base 11 through welding, one end of the guiding rod 40 is inserted and limited to the base 11, and the other ends of the supporting arm 12 and the guiding rod 40 respectively pass through limiting holes on the positioning plate 13, so that the supporting arm 12 and the guiding rod 40 are parallel. The guide rod 4 can also be fixed with the positioning plate 13 by a guide rod gland.
The seat body 11 is used for being connected with the side wall of an inner control roller of the spiral steel tube former so as to limit the seam roller device of the spiral steel tube blank. The inner control roller of the spiral steel pipe former is 2 in the prior art # And (3) a roller. The positioning plate 13 plays a limiting role on the supporting arm 12 and the guide rod 40, and is also used for assembling the translation limiting mechanism 30.
Further, the translation limiting mechanism 30 includes a screw nut pair, wherein a nut 32 is a filament nut, and is assembled on the positioning plate 13 of the hanging seat 10, the screw nut 31 is in threaded connection with the nut 32, and the translation end of the screw nut 31 contacts with the guide seat, so as to drive the guide seat to translate along the support arm 12 towards the meshing center direction of the spiral seam of the tube blank. The lead screw 31 includes a rotating end for rotating the lead screw to translate it, and a translating end. When the screw rod 31 is rotated inwards, the guide seat is driven to move towards the center of the spiral seam of the spiral steel pipe, and the threads of the screw rod and nut pair also have a limiting effect on the head end of the pipe blank. Thereby facilitating the adjustment of the engagement between the free edge 52 of the tube blank and the delivery edge 51 of the steel strip and preventing the slotting.
Further, there are various structures of the guide holder, for example, the guide holder includes a support riser 22 and a seam roll assembly plate 24 disposed at a lower portion of the support riser 22. The upper part of the supporting upright 22 is limited on the supporting arm 12 and has a sliding freedom degree relative to the supporting arm 12, and the structure can be that: the support arm 12 is a rectangular tube, and the support riser 22 is provided with a limiting hole matched with the cross section of the support arm 12, so that the support riser 22 can slide on the support arm 12. The lower part of the support riser 22 extends downwards to match the height of the head end 53 of the tube blank, which height is related to the positioning height of the hanger.
The structure of the guide holder in this embodiment is designed based on the support arm 12 being two rectangular tubes arranged in parallel and symmetrically on the hanger 10. Referring to fig. 3 and 4, the guide holder includes a supporting vertical plate 22 and a joint roller assembly plate 24 disposed at the lower part of the supporting vertical plate 22, and a beam plate 21 disposed perpendicular to the supporting vertical plate 22, wherein the beam plate 21 is bridge-straddled on the upper surfaces of two rectangular pipes, and the supporting vertical plate 22 is limited between the opposite side walls of the two rectangular pipes. In order to stabilize the support riser 22, a reinforcing riser 25 is also provided, which acts as a reinforcing rib. The guide seat is limited between two rectangular pipes, and translation is more stable. In order to translate the guide holder more smoothly and flexibly, a first sliding plate 28 which is in sliding fit with the upper surface of the rectangular pipe is arranged on the lower surface of the beam plate 21. In this structure, the front and rear sides of the guide holder are limited between the opposite side walls of the two rectangular pipes by the supporting vertical plates 22, the upper part is limited by the guide rod 40, and the guide holder is limited on the upper surface of the rectangular pipe by the first sliding plate 28 in a sliding manner, so that the guide holder can slide on the supporting arm 12 smoothly.
Further, referring to fig. 4, the guide holder further includes a limiting plate 26 disposed perpendicular to the supporting riser 22; the limiting plate 26 is located between the opposite side walls of the two rectangular pipes, and a second sliding plate 27 is connected to the lower surface of the limiting plate through threaded connection or welding, and the second sliding plate 27 is in sliding fit with the lower surfaces of the two rectangular pipes. In the structure of this embodiment, the guide holder is limited by sliding the first sliding plate 28 and the second sliding plate 27 with the upper and lower surfaces of the supporting arm 12, so that the guide holder forms a limiting structure on the front and rear sides, and the upper and lower surfaces, and only the translational degree of freedom is left. And the first sliding plate 28 and the second sliding plate 27 can be graphite copper sliding plates, so that stable sliding of the guide seat is realized, and the adjustment of the joint roller is facilitated.
The invention also provides a spiral steel pipe making system which comprises a delivery machine, a shaper, a centralizer and the pipe blank joint roller device.
In summary, the method for stitching by using the embodiment of the invention comprises the following steps:
according to the embodiment of the invention, the hanging seat 10 is assembled on the side wall of the inner control roller of the three-roller bent plate forming machine, the translation limiting mechanism 30 pushes the guide seat to translate towards the meshing center direction of the spiral seam of the pipe blank, so that the free edge 52 of the pipe blank is meshed with the steel strip delivery edge 51, and the inner welding is completed through the inner welding machine. Specifically, the guide seat is driven by the rotating nut screw pair to drive the joint roller 23 to move towards the meshing center of the tube blank, and the roller of the joint roller 23 is a groove roller to prevent the head side of the tube blank from being separated from the roller; the joint roller 23 pushes the head end 53 of the tube blank to draw the head of the tube blank toward the meshing center, thereby eliminating the phenomenon of tube blank joint sinking, creating good welding working conditions for the subsequent internal welding process and reducing the waste reduction probability of the tube blank to the greatest extent.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (8)
1. The device for the seaming roller of the spiral steel pipe blank is characterized by comprising a hanging seat, a seaming roller mechanism and a translation limiting mechanism;
the hanging seat comprises a supporting arm parallel to the axis of the spiral steel pipe to be processed;
the joint roller mechanism includes: the guide seat is limited on the support arm in a sliding way, and the joint roller is assembled on the guide seat and is provided with a limiting ring groove for limiting the head end of the tube blank;
the translation limiting mechanism comprises a screw nut pair, wherein the screw nut is assembled on the hanging seat, the translation end of the screw nut is contacted with the guide seat, and the guide seat is driven to translate towards the meshing center direction of the spiral seam of the tube blank, so that the joint roller mechanism is driven to translate towards the meshing center direction of the spiral seam of the tube blank on the supporting arm.
2. The spiral tube blank seaming roller apparatus of claim 1, further comprising:
the guide rod is arranged on the hanging seat and is parallel to the supporting arm;
the guide seat is provided with an assembly hole, and the guide seat is limited on the guide rod in a sliding way through the assembly hole.
3. The spiral steel pipe blank joint roller device according to claim 2, wherein the hanging seat further comprises a seat body and a positioning plate, and the supporting arm and the guide rod are limited between the seat body and the positioning plate;
the base body is used for being connected with the side wall of the inner control roller of the former;
the positioning plate is also used for assembling the translation limiting mechanism.
4. The apparatus for seaming roller for a tube blank of a spiral steel tube according to claim 1, wherein the guide comprises a supporting riser and a seaming roller assembly plate provided at a lower portion of the supporting riser;
the upper part of the supporting vertical plate is limited on the supporting arm and has a sliding degree of freedom relative to the supporting arm, and the lower part of the supporting vertical plate extends downwards to be matched with the height of the head end of the tube blank;
the joint roller assembly plate is used for assembling the joint roller.
5. A seaming roller apparatus for a coiled steel pipe blank according to claim 4, wherein,
the support arm comprises two rectangular pipes which are symmetrically arranged on the hanging seat in parallel;
the support riser is spacing between two the opposite lateral wall of rectangular pipe, and be equipped with the beam slab perpendicularly on the support riser, the beam slab bridge is jumped and is put at two the upper surface of rectangular pipe.
6. The apparatus for seaming rolls for a coiled steel pipe blank according to claim 5, wherein the lower surface of said beam plate is provided with a first slide plate which is in sliding engagement with the upper surface of said rectangular pipe.
7. A seaming roller apparatus for a coiled steel pipe blank according to claim 5, wherein,
the guide seat further comprises a limiting plate which is perpendicular to the supporting vertical plate;
the limiting plate is located between two opposite side walls of the rectangular pipe, and the lower surface of the limiting plate is connected with a second sliding plate which is in sliding fit with the lower surfaces of the two rectangular pipes.
8. A spiral steel pipe making system comprising a delivery machine, a former and a centralizer, and further comprising the spiral steel pipe blank seaming roller apparatus according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711444724.5A CN107931359B (en) | 2017-12-27 | 2017-12-27 | Spiral steel pipe blank joint roller device and spiral steel pipe tubulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711444724.5A CN107931359B (en) | 2017-12-27 | 2017-12-27 | Spiral steel pipe blank joint roller device and spiral steel pipe tubulation system |
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| Publication Number | Publication Date |
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| CN107931359A CN107931359A (en) | 2018-04-20 |
| CN107931359B true CN107931359B (en) | 2023-10-20 |
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| CN201711444724.5A Active CN107931359B (en) | 2017-12-27 | 2017-12-27 | Spiral steel pipe blank joint roller device and spiral steel pipe tubulation system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114654143B (en) * | 2022-05-24 | 2022-08-26 | 湖北工业大学 | Intelligent welding machine tool based on voice control |
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