CN214556354U

CN214556354U - Welded pipe production line with inner leveling function

Info

Publication number: CN214556354U
Application number: CN202120088289.2U
Authority: CN
Inventors: 刘伯成
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-13
Filing date: 2021-01-13
Publication date: 2021-11-02
Anticipated expiration: 2031-01-13

Abstract

The utility model discloses a welded tube production line with interior flattening function, include: an unreeling machine; the pipe cutting machine comprises a frame, a welding module and a pipe cutting module, wherein the frame is sequentially provided with an extension module, a crimping module, the welding module and the pipe cutting module from back to front; the leveling module comprises a mandrel component and a leveling driving mechanism, the mandrel component comprises a mounting plate, a connecting rod and a mounting frame which are sequentially connected from back to front, an upper roller and a lower roller which can freely rotate are mounted on the mounting frame, the mounting plate is mounted between the crimping module and the welding module, and the mounting frame is located between the welding module and the pipe cutting module; the leveling driving mechanism comprises a mounting seat, a lower pressing roller and an upper pressing roller driven by a driving device, the mounting seat is mounted between the welding module and the pipe cutting module, and the upper pressing roller and the lower pressing roller are respectively arranged in one-to-one correspondence with the upper idler wheel and the lower idler wheel. Under the co-extrusion action of the upper roller and the upper compression roller, the inner and outer welding seams of the welded pipe are continuously leveled along with the forward movement of the welded pipe, so that the inner leveling of the welding seams of the welded pipe is realized on a welded pipe production line.

Description

Welded pipe production line with inner leveling function

Technical Field

The utility model relates to a welded tube technical field, in particular to welded tube production line with interior flattening function.

Background

At present, stainless steel welded pipes are widely applied in various industries, and the forming process is roughly as follows: the coil steel is placed on unreeling machine, and the steel band at first stimulates and the flattening through the extension module, then rolls up the steel band gradually through the turn-up module and become the opening pipe, and the opening of pipe is up, comes to maintain the shape of opening pipe through repairing the module afterwards, and the pipe after repairing comes to weld its opening and form the welding seam through the welding module, later comes to carry out the flattening to the outer welding seam of welded tube through outer leveling device, and tubular product is cut off to last rethread pipe cutting module. However, at this time, the inner weld of the welded pipe is not leveled, so that the inner weld is rough and cannot be directly applied to the pipeline industry, and the inner weld needs to be leveled in the subsequent process to obtain a welded pipe finished product.

Most of the existing eveners in welding seams are independent of a welded pipe production line, and the following steps are adopted to carry out inner leveling on the welding seams of the welded pipes: fix the welded tube in the frame earlier, the welding seam up, fill in the welded tube to the mandrel subassembly after that, the last gyro wheel of mandrel subassembly extrudees the top and the bottom of welded tube inner chamber respectively with lower gyro wheel this moment, the connecting rod of mandrel subassembly is connected to the sliding seat, the lower hydro-cylinder on the sliding seat drives the pinch roller and moves down, make pinch roller and last gyro wheel can respectively with the outside and the inboard butt of welding seam, push-and-pull hydro-cylinder drives the sliding seat and removes, pinch roller and last gyro wheel homogeneous phase move to the welded tube, at this in-process, go up gyro wheel and pinch roller and extrude the inside and outside welding seam of welded tube simultaneously, make a round trip to extrude the back several times, the inside and outside welding seam of welded tube just is polished to leveling. However, the existing leveling machine in the welding seam has higher use, maintenance and repair costs and is independent of a welding pipe production line, not only occupies more space positions, but also reduces the production efficiency of the finished welding pipe.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a welded tube production line with interior flattening function to solve one or more technical problem that exist among the prior art, provide a profitable selection or create the condition at least.

According to the utility model discloses a welded tube production line with interior flattening function of first aspect embodiment, include:

the unreeling machine is used for placing coiled materials;

the device comprises a frame, a welding module and a pipe cutting module, wherein the frame is sequentially provided with an extension module, a curling module, the welding module and the pipe cutting module from back to front, and the unreeling machine is butted with the extension module;

the leveling module comprises a mandrel component and a leveling driving mechanism, the mandrel component comprises a mounting plate, a connecting rod and a mounting frame which are sequentially connected from back to front, an upper roller and a lower roller which can freely rotate are mounted on the mounting frame, the mounting plate is mounted between the hemming module and the welding module, and the mounting frame is located between the welding module and the pipe cutting module; leveling actuating mechanism includes mount pad, lower compression roller and by drive arrangement driven last compression roller, go up the compression roller with the compression roller is all installed down on the mount pad, the mount pad is installed welding module with between the pipe cutting module, go up the compression roller with go up the gyro wheel one-to-one setting, the compression roller with the gyro wheel one-to-one setting down.

According to the utility model discloses welded tube production line with interior flattening function has following beneficial effect at least: the mandrel component extends from the front side of the curling module to the front side of the welding module, when a coiled material is pulled to the curling module by the extension module, the curling module starts to curl a strip material to force the strip material to be gradually curled inwards to form an open circular tube, the open circular tube wraps the mandrel component, after the open circular tube is welded by the welding module, the upper roller and the upper pressing roller are respectively abutted against inner and outer welding seams of the welded tube, and the inner and outer welding seams of the welded tube are continuously leveled along with the gradual forward movement of the welded tube under the co-extrusion action of the upper roller and the upper pressing roller, so that the inner leveling of the welding seams of the welded tube is realized on a welded tube production line.

According to some embodiments of the present invention, the crimping module and be equipped with between the welding module and repair the module, the mounting panel is located the crimping module with repair between the module.

According to the utility model discloses a some embodiments, the end-to-end connection of mounting bracket has the cushion block, and the diameter adaptation of cushion block is in the internal diameter of welded tube.

According to some embodiments of the invention, the mounting bracket and the connecting rod detachable connection.

According to some embodiments of the utility model, the quantity of going up the gyro wheel is one, the quantity of bottom roller is two, go up the gyro wheel with the crisscross setting in bottom roller interval.

According to some embodiments of the invention, the drive arrangement is drivingly connected to the bottom roller.

According to some embodiments of the utility model, go up compression roller swing joint from top to bottom on the mount pad.

According to some embodiments of the utility model, blanking module is still installed to the frame, blanking module is located the front side of surely managing the module.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic perspective view of a welded pipe production line with an internal leveling function according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of a mandrel assembly according to an embodiment of the present invention;

FIG. 3 is a top view of the mandrel assembly shown in FIG. 2;

figure 4 is a cross-sectional view of the mandrel assembly shown in figure 3 taken along section line a-a.

In the drawings: 10-unreeling machine, 20-frame, 21-extending module, 22-curling module, 23-trimming module, 24-welding module, 25-pipe cutting module, 200-coiled material, 210-open circular pipe, 220-welded pipe, 100-leveling module, 110-mandrel component, 120-leveling driving mechanism, 111-mounting plate, 112-connecting rod, 113-mounting frame, 1131-upper roller, 1132-lower roller, 121-mounting seat, 122-upper press roll, 123-lower press roll and 1133-rubber cushion block.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

As shown in fig. 1, the welded pipe production line with internal leveling function according to the embodiment of the first aspect of the present invention includes an unreeling machine 10 and a frame 20, the unreeling machine 10 is located behind the frame 20, the frame 20 is sequentially installed with an extending module 21, a curling module 22, a trimming module 23, a welding module 24, a pipe cutting module 25 and a blanking module (not shown in the drawings) from back to front, the unreeling machine 10 is used for placing a coiled material 200, and the coiled material 200 can be selected from coiled steel or coiled aluminum; the extending module 21 is provided with a plurality of platen rollers, one of which is driven by a speed reduction motor, the platen roller is mainly used for pulling out the coiled material 200 and leveling the pulled-out strip material, and the leveled strip material is driven to the hemming module 22. The hemming module 22 comprises a plurality of plate rolling rollers driven by a speed reducing motor, and the hemming amplitude of each plate rolling roller is sequentially increased from back to front, so that the hemming module 22 can gradually and inwardly curl a strip into an open round pipe 210 along with continuous forward movement of the strip, and the opening of the round pipe is upward; the trimming module 23 includes a plurality of passively disposed trimming rollers for trimming the shape of the open circular tube 210 to improve the roundness thereof. The welding module 24 includes a tube clamping device and a tube welding device, the tube clamping device is used for clamping the open circular tube 210, and the width of a welding seam is reduced, so that the welding of the tube welding device is facilitated; the pipe cutting module 25 comprises a grinding wheel machine driven by a linear expansion device to lift, and after a certain time beat, the grinding wheel machine is driven by the linear expansion device to cut the welded pipe 220 so as to obtain the welded pipe 220 with a specified length; the blanking module is a blanking frame with a blanking channel, and the cut welded tubes 220 fall from the blanking channel to the blanking frame for stacking. It should be noted that, since the unreeling machine 10, the extending module 21, the curling module 22, the trimming module 23, the welding module 24, the pipe cutting module 25 and the blanking module are all the prior art, the present invention does not describe the structure thereof in detail.

As shown in fig. 1 to 4, in order to achieve flattening of the weld joint of the welded tube 220, the welded tube production line further includes a flattening module 100, the flattening module 100 includes a mandrel assembly 110 and a flattening driving mechanism 120, the mandrel assembly 110 includes a mounting plate 111, a connecting rod 112 and a mounting frame 113 connected in sequence from back to front, an upper roller 1131 and a lower roller 1132 which can rotate freely are mounted on the mounting frame 113, that is, the upper roller 1131 and the lower roller 1132 are both connected to the mounting frame 113 through a pin and a bearing, the upper roller 1131 protrudes from the upper portion of the mounting frame 113 and can abut against the inner weld joint of the welded tube 220, and the lower roller 1132 protrudes from the lower portion of the mounting frame 113 and can abut against the inner lower wall of the welded tube 220; the present invention does not limit the number of the upper rollers 1131 and the lower rollers 1132, but as a preferred embodiment, the number of the upper rollers 1131 is selectable as one, and the number of the lower rollers 1132 is selectable as two, and the upper rollers 1131 and the lower rollers 1132 are alternately arranged. Further, the mounting plate 111 is located between the hemming module 22 and the trimming module 23, and the mounting frame 113 extends to be located between the welding module 24 and the tube cutting module 25 through the connecting rod 112, so that the mandrel assembly 110 can already extend into the open circular tube 210 before welding, and the upper roller 1131 can abut against the welding seam of the welded tube 220 after welding the open circular tube 210.

The leveling driving mechanism 120 comprises a mounting seat 121, a lower pressing roller 123 and an upper pressing roller 122, the upper pressing roller 122 and the lower pressing roller 123 are driven by a driving device, the driving device can be selected as a motor with a reduction gearbox, the upper pressing roller 122 and the lower pressing roller 123 are both mounted on the mounting seat 121, the mounting seat 121 is mounted between the welding module 24 and the pipe cutting module 25, the upper pressing roller 122 can be abutted against an outer welding seam of a welded pipe 220, and the lower pressing roller 123 can be abutted against a lower outer wall of the welded pipe 220; the upper pressing roller 122 is movably connected to the mounting seat 121 up and down, so that the distance between the upper pressing roller 122 and the lower pressing roller 123 is adjustable to adapt to welded pipes 220 with different dimensions. In order to match the pressing rollers with the rollers for use, the number of the upper pressing rollers 122 is consistent with that of the upper rollers 1131, the number of the lower pressing rollers 123 is consistent with that of the lower rollers 1132, the upper pressing rollers 122 are arranged in one-to-one correspondence with the upper rollers 1131, and the lower pressing rollers 123 are arranged in one-to-one correspondence with the lower rollers 1132. It should be noted that the shapes of the upper pressing roller 122 and the lower pressing roller 123 are matched with the shape of the outer wall of the welded pipe 220, the shapes of the upper roller 1131 and the lower roller 1132 are matched with the shape of the inner wall of the welded pipe 220, when the upper pressing roller 122 and the lower pressing roller 123 rotate, the welded seam of the welded pipe 220 is flattened under the squeezing action of the upper pressing roller 122 and the upper roller 1131, the upper part of the welded pipe 220 is rounded under the interaction of the upper pressing roller 122 and the upper roller 1131, and the lower part of the welded pipe 220 is rounded under the interaction of the lower pressing roller 123 and the lower roller 1132. It will be appreciated that the lower roll 123 may also be non-driven by a drive, in which case the lower roll 123 is arranged to rotate freely.

With the above structure, after the coil 200 is pulled to the curling module 22 by the extension module 21, the curling module 22 starts curling the strip to force it to gradually curl inward into the open circular tube 210, after that, the open circular tube 210 wraps the mandrel assembly 110, after the welding module 24 welds the open circular tube 210, the upper roller 1131 and the upper pressing roller 122 respectively abut against the inner and outer welding seams of the welded tube 220, and under the co-extrusion action of the upper roller 1131 and the upper pressing roller 122, the inner and outer welding seams of the welded tube 220 are continuously flattened along with the gradual forward movement of the welded tube 220, thereby achieving the inner flattening of the welding seam of the welded tube 220 on the welded tube production line.

In some embodiments of the present invention, since each set of the mounting frame 113 is respectively matched with the welded pipe 220 with a specific inner diameter for use, the mounting frame 113 with different models needs to be replaced for adapting the welded pipe 220 with different dimensions, for convenience of replacement of the mounting frame 113, the mounting frame 113 and the connecting rod 112 are detachably connected. In addition, since the length of the connecting rod 112 is long, in order to facilitate the installation of the mandrel assembly 110, the installation plate 111 connected with the connecting rod 112 may be installed first, and then the installation frame 113 may be connected to the end of the connecting rod 112, so as to reduce the installation difficulty of the mandrel assembly 110.

In some embodiments of the present invention, the end of the mounting frame 113 is connected with a rubber pad 1133, the diameter of the rubber pad 1133 is adapted to the inner diameter of the welded tube 220, i.e. the diameter of the rubber pad 1133 is equal to or slightly smaller than the inner diameter of the welded tube 220, so that the welded tube 220 can provide a certain supporting function for the mounting frame 113.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. Welded tube production line with interior flattening function, its characterized in that includes:

an unreeling machine (10) for placing a roll (200);

the device comprises a rack (20), an extension module (21), a crimping module (22), a welding module (24) and a pipe cutting module (25) are sequentially installed from back to front, and the unreeling machine (10) is butted with the extension module (21);

the flattening module (100) comprises a mandrel assembly (110) and a flattening driving mechanism (120), wherein the mandrel assembly (110) comprises a mounting plate (111), a connecting rod (112) and a mounting frame (113) which are sequentially connected from back to front, an upper roller (1131) and a lower roller (1132) which can freely rotate are mounted on the mounting frame (113), the mounting plate (111) is mounted between the hemming module (22) and the welding module (24), and the mounting frame (113) is located between the welding module (24) and the pipe cutting module (25); flattening actuating mechanism (120) include mount pad (121), lower compression roller (123) and by drive arrangement driven last compression roller (122), go up compression roller (122) with lower compression roller (123) are all installed on mount pad (121), mount pad (121) are installed welding module (24) with between surely managing module (25), go up compression roller (122) with last gyro wheel (1131) one-to-one sets up, lower compression roller (123) with gyro wheel (1132) one-to-one sets up down.

2. The welded tube production line with internal flattening function of claim 1, characterized in that: a trimming module (23) is arranged between the crimping module (22) and the welding module (24), and the mounting plate (111) is positioned between the crimping module (22) and the trimming module (23).

3. The welded tube production line with internal flattening function of claim 1, characterized in that: the tail end of the mounting frame (113) is connected with a rubber cushion block (1133), and the diameter of the rubber cushion block (1133) is matched with the inner diameter of the welded pipe (220).

4. The welded tube production line with internal flattening function of claim 1, characterized in that: the mounting frame (113) is detachably connected with the connecting rod (112).

5. The welded tube production line with internal flattening function of claim 1, characterized in that: the quantity of going up gyro wheel (1131) is one, the quantity of lower gyro wheel (1132) is two, go up gyro wheel (1131) with lower gyro wheel (1132) interval staggered arrangement.

6. The welded tube production line with internal flattening function of claim 1, characterized in that: the driving device is connected with the lower pressing roller (123) in a driving mode.

7. The welded tube production line with internal flattening function of claim 1, characterized in that: the upper pressing roller (122) is movably connected to the mounting base (121) up and down.

8. The welded tube production line with internal flattening function of claim 1, characterized in that: and the frame (20) is also provided with a blanking module, and the blanking module is positioned at the front side of the pipe cutting module (25).