CN211218159U

CN211218159U - Rough forming roll pass device shared by pipes

Info

Publication number: CN211218159U
Application number: CN201921696661.7U
Authority: CN
Inventors: 刘超; 曹善国; 王继磊; 靳顺东; 李成; 李猛; 杨志强; 李�真; 胡顺站
Original assignee: SHANDONG TAIFENG STEEL INDUSTRY CO LTD
Current assignee: SHANDONG TAIFENG STEEL INDUSTRY CO LTD
Priority date: 2019-10-11
Filing date: 2019-10-11
Publication date: 2020-08-11
Anticipated expiration: 2029-10-11

Abstract

The utility model discloses a pipe shared rough forming roller hole pattern device, which comprises a device body, wherein the device body is sequentially provided with at least one first roller, at least one second roller, at least one third roller, at least one fourth roller and at least one fifth roller; the first type of rollers are used for bending the two sides and the middle part of the steel strip, and the bending directions of the two sides and the middle part are opposite; the second roller is used for reversely bending the middle part of the steel belt to form the whole arc shape of the steel belt, the third roller is used for closing up the arc-shaped steel belt, the fourth roller is used for forming the middle part of the arc-shaped steel belt, and the fifth roller is used for closing up the arc-shaped steel belt. The parallel steel strips pass through the first roller, the second roller, the third roller and the fourth roller in sequence, and are changed into a large circular arc shape from parallel. The utility model has the advantages that: the process is simple, the product quality is effectively improved after the hole pattern is used, the replacement of the roller is reduced, and the production cost is reduced.

Description

Rough forming roll pass device shared by pipes

Technical Field

The invention relates to the technical field of steel pipe manufacturing, in particular to a rough forming roller pass device shared by pipes with multiple diameters.

Background

At present, most steel pipe manufacturers adopt a single roll pass forming mode of each specification in a rough forming section for forming steel pipes of each specification when producing steel pipes of phi 140-phi 194, and the forming mode has the defects that: firstly, the steel pipe can have a plane phenomenon in the forming process, and the ovality quality of the steel pipe is influenced. And secondly, when a product is replaced every time, the rough forming roller needs to be replaced completely, and time and labor are wasted. And thirdly, the steel pipe is insufficiently formed in the rough forming section, and large stress is easily generated.

Disclosure of Invention

The invention mainly solves the technical problems in the prior art, and provides a method for fully forming a steel strip to eliminate planes through alternate deformation. The internal stress generated in the forming process is reduced, the working labor intensity is reduced, the working efficiency is improved, and the product quality is improved.

The technical problem of the invention is mainly solved by the following technical scheme:

the invention discloses a pipe shared rough forming roller pass device which comprises a device body, wherein at least one first type roller, at least one second type roller, at least one third type roller, at least one fourth type roller and at least one fifth type roller are sequentially arranged on the device body;

the first type of rollers are used for bending the two sides and the middle part of the steel strip, and the bending directions of the two sides and the middle part are opposite; the second roller is used for reversely bending the middle part of the steel belt to form the steel belt into a whole arc shape, the third roller is used for closing up the arc-shaped steel belt, the fourth roller is used for forming the middle part of the arc-shaped steel belt, the fifth roller is used for closing up the arc-shaped steel belt,

further, first type of roller includes first horizontal upper roller and first horizontal lower roller, first horizontal upper roller includes a pair of first protruding roller of going up of interconnect, first horizontal lower roller includes first protruding roller and a pair of first concave roller down, first concave roller and first protruding roller cooperate, and first protruding roller fixed mounting is between two first concave rollers down, and first horizontal upper roller and first horizontal lower roller can be pressed the steel band into wave.

Further, roller of the second kind includes roller and the horizontal lower roll of second on the second level, roller includes protruding roller on a pair of second of interconnect on the second level, the horizontal lower roll of second includes concave roller under a pair of interconnect's the second, protruding roller and the concave roller one-to-one are gone up to the second, and roller and the horizontal lower roll of second can be pressed the steel band into the arc on the second level.

Further, the third roller and the fifth roller have the same structure and comprise a pair of oblique vertical rollers, and the excircle of each of the two oblique vertical rollers is an arc-shaped groove.

Further, the fourth type of roller includes that sixth level is gone up roller and sixth level lower roll, the sixth level is gone up the roller and is included the sixth roller, sixth level lower roll includes a pair of sixth concave roller, installs the sixth between two sixth concave rollers and goes down the concave roller, the sixth go up the roller with the sixth is recessed roller cooperatees, the sixth concave roller with the shaping face of sixth concave roller becomes the smooth transition of arc.

Further, the second rollers are provided with 2 groups, and the forming diameters of the rollers on the two second rollers are sequentially reduced along the advancing direction of the steel strip; the third type of roller is provided with 2 groups, the forming diameters of the rollers on the two third type of rollers are reduced in sequence along the steel strip advancing direction, the fifth type of roller is provided with 4 groups, and the forming diameters of the rollers on the four fifth type of rollers are reduced in sequence along the steel strip advancing direction.

Further, each pair of oblique rollers of the two third type of rollers is placed in a V-shape of 10 °.

Furthermore, each pair of diagonal rolls in the four fifth types of rolls is placed in an inverted V shape, and the angles of the diagonal rolls are 10 degrees, 20 degrees, 30 degrees and 40 degrees in sequence.

The parallel steel strips pass through the first roller, the second roller, the third roller and the fourth roller in sequence, and are changed into a large circular arc shape from parallel. The invention has the beneficial effects that: the process is simple, the product quality is effectively improved after the hole pattern is used, the replacement of the roller is reduced, and the production cost is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the structure of a first type of roller in this embodiment;

FIG. 2 is a structural schematic of a second type of roller in the present embodiment;

FIG. 3 is a schematic view of the third type of roller in the present embodiment;

FIG. 4 is a structural view of a fourth type roller in the present embodiment;

FIG. 5 is a schematic view of the fifth type of roller in the present embodiment;

FIG. 6 is a structural view of a sixth type roller in the present embodiment;

FIG. 7 is a structural view of a seventh type roller in the present embodiment;

FIG. 8 is a structural schematic of an eighth type of roller in the present embodiment;

FIG. 9 is a structural schematic of a ninth type of roller in the present embodiment;

fig. 10 is a structural schematic of a tenth type roller in the present embodiment.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention will be more clearly and clearly defined.

The device body is an external part such as a bracket, a power part and the like which are necessary for realizing the device, and the structure of the device body is not specifically described in the embodiment because the bracket, the power part and the like are the prior art.

Referring to fig. 1, the first type of roller is used for bending two sides and the middle of a steel strip, and the bending directions of the two sides and the middle are opposite, so that a hole pattern of omega is obtained; in this embodiment, the first rollers are a first roller group and comprise a first upper horizontal roller and a first lower horizontal roller, the first upper horizontal roller comprises a pair of first upper convex rollers 1-1 connected through a first upper horizontal shaft 1-2, the first lower horizontal roller comprises a first lower convex roller 1-5 and a pair of first lower concave rollers 1-3, the first lower concave rollers 1-3 are matched with the first upper convex rollers 1-1, the first lower convex rollers 1-5 are fixedly installed between the two first lower concave rollers 1-3 through a first lower horizontal shaft 1-4, and the first upper horizontal roller and the first lower horizontal roller can press the steel strip into a wave shape.

The parallel steel strips pass through the first roller, the second roller, the third roller and the fourth roller in sequence, and are changed into a large circular arc shape from parallel. The invention has the beneficial effects that: the process is simple, the product quality is effectively improved after the hole pattern is used, the replacement of the roller is reduced, the production cost is reduced, and when the pipes with other diameters need to be changed, the pipes with the corresponding diameters can be formed only by replacing the rollers with other diameters.

Referring to fig. 2 and 3, the second type of roll is used for reverse bending of the middle portion of the steel strip, and in this embodiment, the number of the second rollers is 2, the forming diameters of the rollers on the two second rollers are sequentially reduced along the advancing direction of the steel strip, the two second rollers are respectively a first roller and a second roller, the first roller and the second roller have the same structure and both comprise a second horizontal upper roller and a second horizontal lower roller, the upper horizontal roller comprises a pair of upper second convex rollers (2-1, 3-1) which are connected with each other, the lower horizontal roller comprises a pair of lower second concave rollers (2-2, 3-2) which are connected with each other, the upper second convex rollers (2-1, 3-1) and the lower second concave rollers (2-2, 3-2) of the same group of roller sub-group are in one-to-one correspondence, and the upper horizontal roller and the lower horizontal roller can press the steel strip into an arc shape. And bending the steel strip by two roller subassemblies to obtain a hole pattern '︶'.

Referring to fig. 4 and 5, the third type of rollers are used for necking an arc-shaped steel strip to obtain a pass "C", in this embodiment, the number of the third type of rollers is 2, the forming diameters of the rollers on the two third type of rollers are sequentially reduced along the steel strip advancing direction, the two third type of rollers are respectively a fourth roller set and a fifth roller set, the third type of rollers have substantially the same structure and respectively comprise a pair of inclined vertical rollers, the outer circles of the two inclined vertical rollers (4-1, 5-1) are arc-shaped grooves, and the pair of inclined vertical rollers in the same group are placed in a V shape of 10 °. And (4) extruding the steel belt from two sides to shrink the hole pattern of the steel belt.

Referring to fig. 6, the fourth type of rollers are used for forming the middle of an arc-shaped steel strip, in this embodiment, the number of the fourth type of rollers is 1, and the fourth type of rollers is a sixth roller set and includes a sixth horizontal upper roller and a sixth horizontal lower roller, the sixth horizontal upper roller includes a sixth upper roller 6-1, the sixth horizontal lower roller includes a pair of sixth concave rollers 6-2, a sixth lower concave roller 6-3 is installed between the two sixth concave rollers 6-2, the sixth upper roller 6-1 is matched with the sixth lower concave roller 6-3, and the forming surfaces of the sixth concave roller 6-2 and the sixth lower concave roller 6-3 form arc-shaped smooth transition.

Referring to fig. 7 to 10, the fifth type of roller is used for necking an arc-shaped steel strip, in this embodiment, the number of the fifth type of roller is 4, the number of the fifth type of roller is respectively a seventh roller group to a tenth roller group, the forming diameters of the rollers on the four fifth type of rollers are sequentially reduced along the steel strip advancing direction, the third type of roller and the fifth type of roller have the same structure, and each of the third type of roller and the fifth type of roller includes a pair of inclined vertical rollers (7-1, 8-1, 9-1, 10-1), and the outer circles of the two inclined vertical rollers are arc-shaped grooves; most preferably, each pair of diagonal rolls in the four fifth types of rolls is placed in an inverted V shape, and the angles are 10 °, 20 °, 30 ° and 40 ° in sequence.

The steel plate is formed into an open reel shape through the first to tenth roller groups in sequence, and the whole rough forming deformation process is completed.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.

Claims

1. A rough forming roll pass device shared by pipes comprises a device body and is characterized in that the device body is sequentially provided with at least one first type roll, at least one second type roll, at least one third type roll, at least one fourth type roll and at least one fifth type roll;

the first type of rollers are used for bending the two sides and the middle part of the steel strip, and the bending directions of the two sides and the middle part are opposite; the second roller is used for reversely bending the middle of the steel belt to form the whole arc shape of the steel belt, the third roller is used for closing up the arc-shaped steel belt, the fourth roller is used for forming the middle of the arc-shaped steel belt, and the fifth roller is used for closing up the arc-shaped steel belt.

2. The tube sharing rough forming roll pass device according to claim 1, wherein the first type of rolls comprise a first upper horizontal roll and a first lower horizontal roll, the first upper horizontal roll comprises a pair of first upper convex rolls connected with each other, the first lower horizontal roll comprises a first lower convex roll and a pair of first lower concave rolls, the first lower concave rolls and the first upper convex rolls are matched, the first lower convex rolls are fixedly installed between the two first lower concave rolls, and the first upper horizontal roll and the first lower horizontal roll can press the steel strip into a wave shape.

3. The pipe sharing rough forming roll pass device according to claim 2, wherein: the second type of roller includes horizontal roller and the horizontal lower roll of second, the horizontal roller of second includes protruding roller on a pair of second of interconnect, the horizontal lower roll of second includes concave roller under a pair of interconnect's the second, protruding roller and the concave roller one-to-one of second on the second, the horizontal roller of second and the horizontal lower roll of second can be with the steel band pressure one-tenth arc.

4. The pipe sharing rough forming roll pass device of claim 3, wherein: the third roller and the fifth roller have the same structure and comprise a pair of oblique vertical rollers, and the excircle of each oblique vertical roller is an arc-shaped groove.

5. The pipe sharing rough forming roll pass device of claim 4, wherein: the fourth type of roller includes that sixth level is gone up roller and sixth level lower roll, sixth level is gone up the roller and is included the sixth roller, sixth level lower roll includes a pair of sixth edge concave roller, installs the sixth roller of sinking down between two sixth edge concave rollers, the sixth go up the roller with the sixth roller of sinking cooperatees, the sixth edge concave roller with the shaping face of sixth roller of sinking becomes the arc smooth transition.

6. The pipe sharing rough forming roll pass device of claim 5, wherein: the second rollers are provided with 2 groups, and the forming diameters of the rollers on the two second rollers are reduced in sequence along the advancing direction of the steel strip; the third type of roller is provided with 2 groups, the forming diameters of the rollers on the two third type of rollers are reduced in sequence along the steel strip advancing direction, the fifth type of roller is provided with 4 groups, and the forming diameters of the rollers on the four fifth type of rollers are reduced in sequence along the steel strip advancing direction.

7. The pipe sharing rough forming roll pass device of claim 6, wherein: each pair of oblique rollers of the two third types of rollers is placed in a V-shape of 10 °.

8. The pipe sharing rough forming roll pass device of claim 7, wherein: each pair of oblique vertical rollers in the four fifth types of rollers is placed in an inverted V shape, and the angles are 10 degrees, 20 degrees, 30 degrees and 40 degrees in sequence.