Square tube and round tube quick switching rolling mill

Abstract

A square tube and round tube quick switching rolling mill is provided with a positioning base, a square tube unit and a round tube unit, the square tube unit and the round tube unit can be installed on the positioning base to participate in the production of the rolling unit, a square unit warehouse for placing the square tube unit is further arranged above the positioning base, a round unit dismounting machine for dismounting and transporting the round tube unit is arranged on the side, the square unit warehouse can realize vertical up-and-down carrying of the square tube unit to be placed into or separated from the positioning base, and the round unit dismounting machine can realize side translation carrying of the round tube unit to be placed into or separated from the positioning base, the technical scheme is characterized in that the positioning base is arranged below the square tube unit, the square unit warehouse is arranged above the positioning base, the round unit dismounting machine is arranged on the side, the round tube unit for processing round tubes is arranged on the round unit dismounting machine, and the round tube unit and the square tube unit can be alternately installed on the positioning base to realize the rolling unit to alternately process square and round tube materials.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of roll quick change in automatic steel pipe production line, in particular to a square pipe and round pipe quick switching rolling mill capable of realizing the alternate switching of square pipe and round pipe. BACKGROUND

[0002] In the field of modern full-automatic steel pipe production line, it is usually divided into square and rectangular pipe production line and round pipe production line, and the rolling mill system of the square and rectangular pipe production line and the round pipe production line cannot be universal, that is, one square and rectangular pipe production line and one round pipe production line can be mutually universal in the inlet section, the storage section and the stacker, but the specific rolling main machine can only process square and rectangular pipes or round pipes. Therefore, when a customer needs a production line that can process both square and rectangular pipes and round pipes, it cannot meet the requirements, and the current technical field can realize the processing of multiple specifications by changing the rolling main machine itself without changing the roll under the premise of square and rectangular pipe production line, but the rolling main machine of the round pipe must be replaced with the corresponding roll to realize the switching of multiple specifications. Therefore, in order to improve the utilization rate of production line equipment, realize a production line that can process both square and rectangular pipes and round pipes, and diversify the processing specifications of square and rectangular pipes and round pipes, the technical personnel in the field must develop a square and rectangular pipe quick switching rolling mill that can realize the quick switching of square and rectangular pipes and ensure that the rolling mill group of the round pipe can realize roll changing on the basis of the original technology. SUMMARY

[0003] In order to realize the quick switching of square and rectangular pipes on the same production line on the basis of the diversification of processing specifications of the original square and rectangular pipe rolling mill and round pipe rolling mill, the technical solution sets a positioning base under the square pipe group, sets a square group warehouse above the positioning base, sets a round group disassembling and transporting machine on the side, sets a round pipe group for processing round pipes on the round group disassembling and transporting machine, and realizes the alternate processing of square and rectangular pipes and round pipes by alternately installing the round pipe group and the square pipe group on the positioning base.

[0004] In one aspect, a square tube round tube quick switching rolling mill is used to expand the processing range of the rolling mill train, and is provided with a positioning base d and a square tube mill train fj used for processing square and rectangular tube materials. The mill train is characterized in that it is further provided with a round tube mill train yj used for processing round tube materials, and the square tube mill train fj and the round tube mill train yj can be installed on the positioning base d to participate in the production of the rolling mill train. The positioning base d is further provided with a square group warehouse fc used for placing the square tube mill train fj, and a side is provided with a round group dismounting machine yz used for dismounting and transporting the round tube mill train yj. The square group warehouse fc can vertically carry the square tube mill train fj up and down to be placed in or separated from the positioning base d. The round group dismounting machine yz can laterally translate to carry the round tube mill train yj to be placed in or separated from the positioning base d and can replace the rolling mill. The square tube mill train fj and the round tube mill train yj are alternately installed on the positioning base d to alternately process square and rectangular tube materials and round tube materials.

[0005] According to an aspect of the first embodiment of the application, the square group warehouse fc is further provided with a frame jt, a hoist sj and a positioning pin dw. The square tube mill train fj is connected to the frame jt through the hoist sj, and the square tube mill train fj can be raised or lowered relative to the frame jt under the carrying action of the hoist sj. The positioning pin dw is arranged on the frame jt, and the square tube mill train fj is further provided with a positioning hole dk. The positioning pin dw can be inserted into the positioning hole dk to lock the square tube mill train fj.

[0006] According to an aspect of the first embodiment of the application, the round group dismounting machine yz includes a carrying track yg and a carrying seat yu. The carrying seat yu is arranged on the carrying track yg, and the carrying track yg is arranged as a straight track and extends outward from the inside of the positioning base d. The round tube mill train yj can be placed on the carrying seat yu, and the carrying seat yu can drive the round tube mill train yj to approach or move away from the positioning base d along the carrying track yg.

[0007] According to an aspect of the first embodiment of the application, a lifting device sq is further provided. The lifting device sq is arranged on the carrying seat yu, and the round tube mill train yj is arranged on the lifting device sq. The lifting device sq can lift the round tube mill train yj and place it on the positioning base d.

[0008] According to an aspect of the second embodiment of the application, a push-pull device tp and a push-pull track tpg are further provided. The push-pull track tpg is further provided with a first push-pull section tpg1 and a second push-pull section tpg2. The first push-pull section tpg1 is arranged on the carrying seat yu, and the second push-pull section tpg2 is arranged on the positioning base d. The round tube mill train yj is arranged on the first push-pull section tpg1 and can move into or out of the second push-pull section tpg2 under the pushing and pulling action of the push-pull device tp.

[0009] According to an aspect of the second embodiment of the present application, the first and second push-pull sections tpg1 and tpg2 can be connected to form a complete straight track. BRIEF DESCRIPTION OF DRAWINGS

[0010] The features, advantages, and technical and industrial effects of the exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

[0011] Number Description: positioning base d, square tube machine set fj, positioning hole dk, round tube machine set yj, square group warehouse fc, frame body jt, elevator sj, positioning pin dw, vertical rail sg, round group disassembling and transporting machine yz, transporting rail yg, transporting seat yu, lifter sjq, push-pull device tp, push-pull rail tpg, first push-pull section tpg1, second push-pull section tpg2, clamping seat first part k1, clamping seat second part k2, positioning block dwk.

[0012] Figure 1 is a basic structure layout schematic diagram of the first embodiment of the present application.

[0013] Figure 2 is a diagram showing that the square tube machine set fj of the first embodiment of the present application is adjusted away.

[0014] Figure 3 is a diagram showing that the square tube machine set fj of the first embodiment of the present application is locked.

[0015] Figure 4 is a diagram showing that the round tube machine set yj of the first embodiment of the present application is lifted.

[0016] Figure 5 is a diagram showing that the round tube machine set yj of the first embodiment of the present application enters a working position.

[0017] Figure 6 is a diagram showing that the round tube machine set yj of the first embodiment of the present application is placed on the positioning base d.

[0018] Figure 7 is a basic structure layout schematic diagram of the second embodiment of the present application.

[0019] Figure 8 is a diagram showing that the round tube machine set yj of the second embodiment of the present application is transported.

[0020] Figure 9 is a working schematic diagram of the push-pull device tp of the second embodiment of the present application.

[0021] Figure 10 is a diagram showing that the round tube machine set yj of the second embodiment of the present application is placed on the positioning base d.

[0022] Figure 11 is a basic structure layout schematic diagram of the third embodiment of the present application.

[0023] Figure 12 is a schematic diagram of an alternative embodiment of the present application.

[0024] In the drawings, like reference numerals refer to like elements throughout. The drawings are not necessarily to scale. DETAILED DESCRIPTION

[0025] The embodiments of the present application will be further described with reference to the drawings and examples. The following detailed description of the examples and drawings are provided for the purpose of illustration only and not for the purpose of limitation, i.e., the present application is not limited to the preferred embodiments described, but rather the scope of the present application is defined by the appended claims.

[0026] In the description of the embodiments of the present application, it should be noted that, unless otherwise specified, "vertical", "parallel" is not only the absolute sense of mathematics, can be understood as "substantially vertical", "substantially parallel".

[0027] Figure 1 is a schematic diagram of the basic structure layout of an embodiment of the present application.

[0028] Figure 3 is a schematic diagram of the locking of the square tube unit fj of an embodiment of the present application.

[0029] Figure 4 is a schematic diagram of the lifting of the round tube unit yj of an embodiment of the present application.

[0030] As Figure 1 , Figure 3 and Figure 4As shown, in order to realize the quick switching of square pipe and round pipe on the same production line on the basis of the original square pipe and round pipe rolling mill processing various specifications, the technical scheme is characterized by that a positioning base is arranged below the square pipe unit, a square pipe storage is arranged above the positioning base, a round pipe unloading machine is arranged on the side, and a round pipe unit for processing round pipe is arranged on the round pipe unloading machine. The round pipe unit and the square pipe unit are alternately installed on the positioning base to realize the alternate processing of square pipe, rectangular pipe and round pipe materials. In the embodiment, the specific implementation can include a positioning base d, a square pipe unit fj, a round pipe unit yj, a square pipe storage fc and a round pipe unloading machine yz. The positioning base d is arranged as a steel structure square platform fixed to the ground, at least one clamping seat second part k2 is arranged on the positioning base d, and the clamping seat second part k2 is arranged as a protruding positioning block fixedly installed above the positioning base d. The square pipe unit fj is arranged as a conventional existing square pipe and rectangular pipe rolling mill unit capable of processing various specifications by itself, a square pipe unit base is arranged below the square pipe unit fj, at least one clamping seat first part k1 is arranged below the square pipe unit base, the clamping seat first part k1 is arranged as a positioning block with a recess inward, the clamping seat first part k1 can be buckled on the clamping seat second part k2, and the clamping seat first part k1 and the clamping seat second part k2 can be matched to realize the stable positioning of the square pipe unit fj above the positioning base d for rolling work. The square pipe storage fc is arranged as a storage room with storage function in a floor structure, and a frame jt, an elevator sj, a positioning pin dw and a vertical rail sg are further arranged on the square pipe storage fc. The frame jt is arranged as a steel structure frame, and is arranged above the positioning base d and can contain the positioning base d. The elevator sj is arranged as a crane structure in the embodiment, and a lifting hook can be arranged on the elevator sj to lift the square pipe unit fj. A lifting frame can be further arranged on the square pipe unit base of the square pipe unit fj, and the lifting hook on the elevator sj can lift the square pipe unit fj by lifting the lifting frame. The elevator sj is arranged at the upper end of the square pipe unit fj inside the frame jt, and can drive the square pipe unit fj to move upward and downward relative to the frame jt. The vertical rail sg is arranged as a straight rail, and is arranged on the side wall inside the frame jt and vertically relative to the ground. The square pipe unit fj is connected with the frame jt through the vertical rail sg, and can move vertically upward and downward relative to the ground under the lifting action of the elevator sj. The positioning pin dw is arranged as a cylindrical pin arranged on the side wall of the frame jt, and a positioning hole dk corresponding to the positioning pin dw is further arranged on the square pipe unit base of the square pipe unit fj. The positioning pin dw can be inserted into the positioning hole dk to fix the relative position of the square pipe unit fj and the frame jt.The round pipe unit yj is set as a conventional existing technology capable of realizing processing of multiple specifications of round pipes by replacing matched rollers, a round pipe unit base is arranged below the round pipe unit yj, at least one clamping seat first part k1 is arranged below the round pipe unit base, the clamping seat first part k1 is arranged as a positioning block with a groove inward, the clamping seat first part k1 can be buckled on the clamping seat second part k2 arranged on the positioning base d, and through mutual cooperation of the clamping seat first part k1 and the clamping seat second part k2, the round pipe unit yj can be stably positioned above the positioning base d to perform rolling work. The round group dismounting and transporting machine yz is arranged as a set of a carrying tool with carrying capacity, and is further provided with a carrying track yg, a carrying seat yu and a lifting device sjq. The carrying track yg is arranged as a linear sliding rail track, and extends outward from the inside of the positioning base d. The lifting device sjq is arranged as a cylinder structure in this embodiment, is arranged above the carrying seat yu and is at least one. The carrying seat yu is arranged as a steel structure square block type seat body, is arranged above the carrying track yg, the round pipe unit yj can be arranged on the lifting device sjq above the carrying seat yu, the carrying seat yu can drive the round pipe unit yj to move along the carrying track yg to approach or move away from the positioning base d, and the lifting device sjq can drive the round pipe unit yj to move up and down relative to the carrying seat yu through the extension and retraction movement of the lifting device sjq. The square pipe unit fj and the round pipe unit yj can be installed on the positioning base d to participate in the production of the rolling unit, the square group warehouse fc can realize vertical up and down carrying of the square pipe unit fj to be arranged in or separated from the positioning base d, the round group dismounting and transporting machine yz can realize side translation carrying of the round pipe unit yj to be arranged in or separated from the positioning base d and can realize replacement of the roller, and the square pipe unit fj and the round pipe unit yj are alternately installed on the positioning base d to realize alternate processing of square pipe materials and round pipe materials by the rolling unit.

[0031] Figure 2 is a schematic diagram of the square pipe unit fj of the embodiment one of the present application being adjusted away.

[0032] Figure 5 is a schematic diagram of the round pipe unit yj of the embodiment one of the present application entering a working position.

[0033] Figure 6 is a schematic diagram of the round pipe unit yj of the embodiment one of the present application being arranged on the positioning base d.

[0034] As Figure 2 , Figure 5 and Figure 6As shown, according to an aspect of the first embodiment of the present application, when the rolling unit needs to switch from the square tube unit fj to the round tube unit yj, the elevator sj is first started to rise and the square tube unit fj is adjusted to rise synchronously, the square tube unit fj rises along the vertical rail sg under the action of the lifting of the elevator sj, when the square tube unit fj rises to the highest position, the positioning hole dk and the positioning pin dw are aligned with each other, at this time the positioning pin dw is extended and inserted into the positioning hole dk, and the position of the square tube unit fj relative to the frame jt is fixed. Then the lifter sq provided on the carrier seat yu lifts the round tube unit yj to a certain height, then the carrier seat yu drives the round tube unit yj to move along the carrier rail yg towards the positioning base d until the round tube unit yj enters the working area, then the lifter sq is retracted to make the round tube unit yj descend, the first part k1 of the clamping seat below the round tube unit base cooperates with the second part k2 of the clamping seat on the positioning base d to fix the round tube unit yj on the positioning base d to participate in the rolling work.

[0035] On the contrary, when the rolling unit needs to switch from the round tube unit yj to the square tube unit fj, the lifter sq provided on the carrier seat yu lifts the round tube unit yj to a certain height, the first part k1 of the clamping seat below the round tube unit base is separated from the second part k2 of the clamping seat on the positioning base d, then the carrier seat yu drives the round tube unit yj to move away from the positioning base d along the carrier rail yg until the round tube unit yj leaves the working area, then the lifter sq is retracted to make the round tube unit yj descend. Then the positioning pin dw is retracted and withdrawn from the positioning hole dk, the fixed position of the square tube unit fj relative to the frame jt is released, then the elevator sj is started to descend and the square tube unit fj is adjusted to descend synchronously, the square tube unit fj descends along the vertical rail sg under the action of the lowering of the elevator sj, when the first part k1 of the clamping seat on the square tube unit base contacts the second part k2 of the clamping seat provided on the positioning base d, the square tube unit fj is fixed to the working position to participate in the rolling work.

[0036] Figure 7 is a schematic diagram of the basic structure layout of the round tube unit dismounting and transporting machine yz of the second embodiment of the present application.

[0037] As Figure 7As shown in the drawings, according to an aspect of the second embodiment of the present application, the specific distinguishing technical features from the first embodiment are that a push-pull device tp is arranged on the side of the carrier seat yu, a hook first end is arranged on the push-pull device tp, a hook second end is arranged on the bottom of the pipe unit yj, the push-pull device tp can extend the hook first end to cooperate with the hook second end arranged on the bottom of the pipe unit yj, so that the push-pull device tp can push or pull back the pipe unit yj. The push-pull rail tpg is also provided with a first push-pull section tpg1 and a second push-pull section tpg2, the first push-pull section tpg1 is arranged on the carrier seat yu, the second push-pull section tpg2 is arranged on the positioning base d, the pipe unit yj is arranged on the first push-pull section tpg1 and can move into or out of the second push-pull section tpg2 under the action of the push-pull device tp. The first push-pull section tpg1 and the second push-pull section tpg2 can be connected to form a complete and coherent straight rail. The positioning base d is also provided with a positioning block dwk, which can block and position the pipe unit yj in the working position when the pipe unit yj is pushed into the second push-pull section tpg2 by the push-pull device tp.

[0038] Figure 8 is a schematic diagram of the pipe unit yj being transported according to the second embodiment of the present application.

[0039] Figure 9 is a schematic diagram of the push-pull device tp working according to the second embodiment of the present application.

[0040] Figure 10 is a schematic diagram of the pipe unit yj being placed on the positioning base d according to the second embodiment of the present application.

[0041] As shown in the drawings, Figure 8 , Figure 9 and Figure 10 , according to an aspect of the second embodiment of the present application, the specific working process is as follows: when the rolling unit needs to switch from the square tube unit fj to the pipe unit yj, first, the elevator sj starts to rise and adjusts the square tube unit fj to rise synchronously, the square tube unit fj rises along the vertical rail sg under the action of the lifting of the elevator sj, when the square tube unit fj rises to the highest position, the positioning hole dk and the positioning pin dw are aligned with each other, at this time, the positioning pin dw extends and inserts into the positioning hole dk, the position of the square tube unit fj relative to the frame jt is fixed. Then the carrier seat yu drives the pipe unit yj arranged thereon to gradually approach the positioning base d until the second push-pull section tpg2 arranged on the positioning base d and the first push-pull section tpg1 arranged on the carrier seat yu are connected to form a complete and coherent straight rail, then the push-pull device tp starts to push the pipe unit yj to enter the second push-pull section tpg2 from the first push-pull section tpg1 and make the pipe unit base contact and stop with the positioning block dwk arranged on the positioning base d, at this time, the pipe unit yj enters the working position to participate in the rolling work.

[0042] Conversely, when the rolling mill set needs to switch the round pipe mill set yj to the square pipe mill set fj, the push-pull device tp on the carrier seat yu pulls the round pipe mill set yj back, and the round pipe mill set yj is driven from the second push-pull section tpg2 to the first push-pull section tpg1, and then the carrier seat yu drives the round pipe mill set yj to move along the carrier track yg away from the positioning base d until the round pipe mill set yj leaves the working area. Then the positioning pin dw is retracted and withdrawn from the positioning hole dk, the fixed position of the square pipe mill set fj relative to the frame jt is released, and then the elevator sj starts to descend and synchronously lowers the square pipe mill set fj, and the square pipe mill set fj is lowered along the vertical track sg under the action of the lowering of the elevator sj, when the clamping seat first part k1 on the square pipe mill set base contacts the clamping seat second part k2 arranged on the positioning base d, the square pipe mill set fj is fixed to the working position to participate in the rolling work.

[0043] Figure 11 is a schematic diagram of the basic structure of the third embodiment of the present application.

[0044] Figure 12 is a schematic diagram of the third embodiment of the present application.

[0045] As shown in Figure 11 and Figure 12 According to an aspect of the third embodiment of the present application, the specific technical feature distinguishing it from the first embodiment is that the square group warehouse fc is arranged underground, and the square pipe mill set fj moves downward when moving upward to enter the underground square group warehouse fc.

[0046] It should be understood that the description of the specification for the specific embodiments of the present application is exemplary, and should not be interpreted as an improper limitation on the scope of protection of the present application. The scope of protection of the present application is defined by its claims, and covers all embodiments falling within its scope and obvious equivalent variations thereof.

Claims

1. A square tube round tube quick switching rolling mill for expanding the processing range of a rolling train, provided with a positioning base (d) and a square tube train (fj) for processing square and rectangular tube type material, characterized in that Further provided is a round pipe unit (yj) for processing round pipe materials, the square pipe unit (fj) and the round pipe unit (yj) can be installed on the positioning base (d) to participate in the production of the rolling unit, a square unit warehouse (fc) for placing the square pipe unit (fj) is further provided above the positioning base (d), a side square unit dismounting machine (yz) for dismounting the round pipe unit (yj) is further provided, the square unit warehouse (fc) can vertically carry the square pipe unit (fj) to be placed on or separated from the positioning base (d), the square unit dismounting machine (yz) can laterally translate to carry the round pipe unit (yj) to be placed on or separated from the positioning base (d) and can replace the roll, and the square pipe unit (fj) and the round pipe unit (yj) can be alternately installed on the positioning base (d) to alternately process square pipe and round pipe materials.

2. A square to round quick change rolling mill as claimed in claim 1 wherein The square unit warehouse (fc) further comprises a frame (jt), a lifting machine (sj) and a positioning pin (dw), the square pipe unit (fj) is connected to the frame (jt) through the lifting machine (sj), the square pipe unit (fj) can be lifted or lowered relative to the frame (jt) under the carrying action of the lifting machine (sj), the positioning pin (dw) is arranged on the frame (jt), the square pipe unit (fj) further comprises a positioning hole (dk), and the positioning pin (dw) can be inserted into the positioning hole (dk) to lock the square pipe unit (fj).

3. A square to round quick change rolling mill as claimed in claim 2 wherein The square unit dismounting machine (yz) comprises a carrying track (yg) and a carrying seat (yu), the carrying seat (yu) is arranged above the carrying track (yg), the carrying track (yg) is a straight track extending outward from the inside of the positioning base (d), the round pipe unit (yj) can be placed on the carrying seat (yu), and the carrying seat (yu) can drive the round pipe unit (yj) to move towards or away from the positioning base (d) along the carrying track (yg).

4. A square to round quick change rolling mill as claimed in claim 3 wherein Further provided is a lifting machine (sjq) arranged above the carrying seat (yu), the round pipe unit (yj) is arranged on the lifting machine (sjq), and the lifting machine (sjq) can lift the round pipe unit (yj) and place it on the positioning base (d).

5. A square to round quick change rolling mill as claimed in claim 3 wherein Further provided are a push-pull machine (tp) and a push-pull track (tpg), the push-pull track (tpg) further comprises a first push-pull section (tpg1) and a second push-pull section (tpg2), the first push-pull section (tpg1) is arranged on the carrying seat (yu), the second push-pull section (tpg2) is arranged on the positioning base (d), the round pipe unit (yj) is arranged on the first push-pull section (tpg1) and can move into or out of the second push-pull section (tpg2) under the pushing and pulling action of the push-pull machine (tp).

6. A square to round quick change rolling mill as claimed in claim 5 wherein The first push-pull section (tpg1) and the second push-pull section (tpg2) can be connected to form a complete and coherent straight track.

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