Steel clamping accident treatment method for vertical loop and bar production line

Abstract

The invention provides a steel jamming accident handling method for a vertical loop and bar production line, and belongs to the field of steel rolling production equipment.A window is formed in the operation side of a vertical loop rack, and a hinge door is arranged at the window, so that waste steel in the rack is convenient to clean, the accident handling time is shortened, and the production efficiency is improved; when the high-speed wire rod rolling mill works normally, the first opening and closing door and the second opening and closing door are kept in a connected state and are fixed to the vertical loop rack, and normal production is not affected; when a steel clamping accident occurs, only the first fixing mechanism and the second fixing mechanism need to be dismantled and the connection state between the first opening and closing door and the second opening and closing door needs to be released, so that the first opening and closing door and the second opening and closing door can rotate around the joint with the vertical loop rack through the first connecting mechanism and the second connecting mechanism respectively; therefore, opening and closing between the first opening and closing door and the second opening and closing door are achieved, accidents occurring in the vertical loop rack can be handled conveniently, and the handling efficiency is high.

Description

Technical Field

[0001] The invention relates to the field of steel rolling production equipment, and more specifically, to a method for handling steel jam accidents in a vertical looper and a bar production line. Background Art

[0002] The looper is one of the main supporting equipment of modern high-speed wire rolling mills. It is used to maintain appropriate looping between adjacent stands to achieve tension-free rolling.

[0003] When a steel jam accident occurs, due to the narrow space inside the frame, the rolled piece can easily collide with the inner wall of the vertical loop frame, causing bending and entanglement.

[0004] The frame of the vertical looper currently used is generally a closed structure, and the rolled piece can only be removed through the opening on the panel for observation, which is time-consuming and labor-intensive, and seriously affects the production efficiency. In addition, the vulnerable parts installed in the frame, such as the looping rollers and the cutting guide grooves, are also restricted by the structure and space of the frame, which makes it inconvenient for daily replacement and maintenance. Summary of the invention

[0005] In view of the above problems, the purpose of the present invention is to provide a method for handling steel jamming accidents in a vertical looper and a bar production line, so as to solve the problem in the prior art that, since the frame of the vertical looper is a closed structure, the rolled piece can only be cleared through the opening for observation on the panel, which is time-consuming and labor-intensive and seriously affects the production efficiency; and the vulnerable parts installed in the frame, such as the lifting rollers and the cutting guide grooves, are also restricted by the structure and space of the frame, making it inconvenient for daily replacement and maintenance.

[0006] The present invention provides a vertical looper, which is arranged between adjacent frames of a high-speed wire rolling mill, and is characterized in that it comprises a vertical looper frame, a looping mechanism and a hinged door; wherein, along the transmission direction of the bar production line, a bar inlet and a bar outlet are respectively arranged at both ends of the vertical looper frame; a first pressing roller and a second pressing roller are respectively arranged inside the vertical looper frame near the bar inlet and the bar outlet; a window is opened on the operating side of the vertical looper frame; the looping mechanism comprises a looping roller arranged inside the vertical looper frame, a swing arm hingedly connected to one end of the looping roller, and a telescopic end connected to the vertical looper frame. The other end of the swing arm is hingedly connected to an electrically controlled telescopic member; the hinged door is arranged at the window, and includes a first opening and closing door and a second opening and closing door; the first opening and closing door is docked with the second opening and closing door; the side end of the first opening and closing door is rotatably connected to the vertical loop frame through a first connecting mechanism; the side end of the second opening and closing door is rotatably connected to the vertical loop frame through a second connecting mechanism; the upper part of the first opening and closing door is detachably fixed to the vertical loop frame through a first fixing mechanism; the upper part of the second opening and closing door is detachably fixed to the vertical loop frame through a second fixing mechanism.

[0007] In addition, a preferred solution is that the first connecting mechanism includes a first fixing ear fixed to the outer side wall of the vertical loop frame, a first connecting ear fixed to the outer side wall of the first opening and closing door, and a first pin shaft vertically passing through a connecting hole of the first connecting ear and a fixing hole of the first fixing ear.

[0008] In addition, a preferred solution is that the first connecting ear includes an upper sheet first connecting ear located above the first fixing ear and a lower sheet first connecting ear located below the first fixing ear.

[0009] In addition, a preferred solution is that the second connecting mechanism includes a second fixing ear fixed to the outer side wall of the vertical loop frame, a second connecting ear fixed to the outer side wall of the second opening and closing door, and a second pin shaft vertically passing through the connecting hole of the second connecting ear and the fixing hole of the second fixing ear.

[0010] In addition, a preferred solution is that the second connecting ear includes an upper sheet second connecting ear located above the second fixing ear and a lower sheet second connecting ear located below the second fixing ear.

[0011] In addition, a preferred solution is that the first opening and closing door and the second opening and closing door are connected via a third connecting mechanism; wherein the third connecting mechanism includes a third connecting ear fixed to the outer side wall of the first opening and closing door, a third fixing ear fixed to the outer side wall of the second opening and closing door, and a third pin shaft vertically passing through a connecting hole of the third connecting ear and a fixing hole of the third fixing ear.

[0012] In addition, a preferred solution is that the third connecting ear includes an upper sheet third connecting ear located above the third fixing ear and a lower sheet third connecting ear located below the third fixing ear.

[0013] In addition, a preferred solution is that the first fixing mechanism includes a first connecting plate and a first pin shaft structure; the bottom end of the first connecting plate is fixed on the first opening and closing door, and a first connecting long hole is arranged on the first connecting plate; a first fixed long hole corresponding to the position of the first connecting long hole is arranged on the vertical hook frame; the first pin shaft structure includes a first pin shaft body passing through the first connecting long hole and the first fixed long hole, and a first internal clamping joint and a first external clamping joint respectively fixed at both ends of the first pin shaft body; when the positional relationship between the first internal clamping joint and the first fixed long hole and the positional relationship between the first external clamping joint and the first connecting long hole are both in a cross structure, the first pin shaft body is fixed between the first connecting long hole and the first fixed long hole by the first external clamping joint and the first internal clamping joint; when the positional relationship between the first internal clamping joint and the first fixed long hole and the positional relationship between the first external clamping joint and the first connecting long hole are both in a straight structure, the first external clamping joint and the first internal clamping joint release the fixation of the first pin shaft body between the first connecting long hole and the first fixed long hole.

[0014] In addition, a preferred solution is that the second fixing mechanism includes a second connecting plate and a second pin shaft structure; the bottom end of the second connecting plate is fixed on the second opening and closing door, and a second connecting long hole is arranged on the second connecting plate; a second fixed long hole corresponding to the position of the second connecting long hole is arranged on the vertical hook frame; the second pin shaft structure includes a second pin shaft body passing through the second connecting long hole and the second fixed long hole, and a second internal clamping joint and a second external clamping joint respectively fixed at both ends of the second pin shaft body; when the positional relationship between the second internal clamping joint and the second fixed long hole and the positional relationship between the second external clamping joint and the second connecting long hole are both in a cross structure, the second pin shaft body is fixed between the second connecting long hole and the second fixed long hole by the second external clamping joint and the second internal clamping joint; when the positional relationship between the second internal clamping joint and the second fixed long hole and the positional relationship between the second external clamping joint and the second connecting long hole are both in a straight line structure, the second external clamping joint and the second internal clamping joint release the fixation of the second pin shaft body between the second connecting long hole and the second fixed long hole.

[0015] The present invention also provides a method for handling steel jam accidents in a bar production line, wherein the vertical looper as described above is installed between adjacent frames of a high-speed wire rod rolling mill body. When a steel jam accident occurs during the production of high-speed wire rods, the steel jam accident inside the high-speed wire rod rolling mill body is handled through a hinge door on the vertical looper close to the point where the steel jam accident occurs.

[0016] It can be seen from the above technical scheme that the method for handling steel jamming accidents of the vertical looper and the bar production line provided by the present invention opens a window on the operating side of the vertical looper frame and sets a hinge door at the window to facilitate cleaning of scrap steel inside the frame, reduce accident handling time, and improve production efficiency; when the high-speed wire rolling mill works normally, the first opening and closing door and the second opening and closing door remain in a docking state, and the first opening and closing door and the second opening and closing door are respectively fixed to the vertical looper frame by the first fixing mechanism and the second fixing mechanism, without affecting normal production; when a steel jamming accident occurs, it is only necessary to dismantle the first fixing mechanism and the second fixing mechanism and release the docking state between the first opening and closing door and the second opening and closing door, so that the first opening and closing door and the second opening and closing door can be respectively rotated around the connection with the vertical looper frame by the first connecting mechanism and the second connecting mechanism, thereby realizing the opening and closing between the first opening and closing door and the second opening and closing door, so as to facilitate handling of accidents occurring inside the vertical looper frame with high handling efficiency; the present invention has the advantages of simple structure, easy operation, and reduced investment and maintenance costs.

[0017] In order to achieve the above and related purposes, one or more aspects of the present invention include the features that will be described in detail later. The following description and the accompanying drawings describe some exemplary aspects of the present invention in detail. However, these aspects indicate only some of the various ways in which the principles of the present invention can be used. In addition, the present invention is intended to include all these aspects and their equivalents. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] By referring to the following description in conjunction with the accompanying drawings, and with a more complete understanding of the present invention, other objects and results of the present invention will become more apparent and easily understood.

[0019] Figure 1 It is a structural schematic diagram of a vertical looper according to an embodiment of the present invention;

[0020] Figure 2 It is a schematic diagram of the top view of the structure of the vertical looper according to an embodiment of the present invention;

[0021] Figure 3 Schematic diagram of the structure of a first connecting mechanism according to an embodiment of the present invention.

[0022] In the accompanying drawings, 1-vertical sling frame, 11-rod inlet, 12-rod outlet, 13-frame plate, 14-cover plate, 15-lifting ear, 16-base, 21-slinging roller, 22-swing arm, 23-electrically controlled telescopic part, 31-first opening and closing door, 32-second opening and closing door, 33-handle, 4-first pressure roller, 5-second pressure roller, 6-first fixing mechanism, 7-second fixing mechanism, 81-first fixing ear, 82-first connecting ear, 821-first connecting ear of upper piece, 822-first connecting ear of lower piece, 83-first pin shaft, 84-second fixing ear, 85-second connecting ear, 86-second pin shaft, 9-third connecting mechanism.

[0023] The same reference numerals throughout the drawings indicate similar or corresponding features or functions. DETAILED DESCRIPTION

[0024] In the following description, for the purpose of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. However, it is apparent that these embodiments may also be implemented without these specific details.

[0025] In view of the above-mentioned prior art, since the frame of the vertical looper is a closed structure, the rolled piece can only be removed through the opening for observation on the panel, which is time-consuming and labor-intensive and seriously affects the production efficiency; and the vulnerable parts installed in the frame, such as the lifting rollers and the cutting guide grooves, are also restricted by the structure and space of the frame, and are not convenient for daily replacement and maintenance. Therefore, a method for handling steel jamming accidents of a vertical looper and a bar production line is proposed.

[0026] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0027] In order to illustrate the method for handling steel jamming accidents of the vertical looper and the bar production line provided by the present invention, Figure 1 The structure of the vertical looper according to an embodiment of the present invention is shown; Figure 2 The top view structure of the vertical looper according to an embodiment of the present invention is shown; Figure 3 The structure of the first connecting mechanism according to an embodiment of the present invention is shown.

[0028] like Figures 1 to 3 As shown together, the vertical looper provided by the present invention is arranged between adjacent frames of a high-speed wire rolling mill, and includes a vertical looper frame 1, a looping mechanism and a hinge door; wherein,

[0029] Along the transmission direction of the bar production line, a bar inlet 11 and a bar outlet 12 are respectively arranged at both ends of the vertical looper frame 1; a first pressing roller 4 and a second pressing roller 5 are respectively arranged inside the vertical looper frame 1 near the bar inlet 11 and the bar outlet 12; a window is opened on the operating side of the vertical looper frame 1;

[0030] The slinging mechanism comprises a slinging roller 21 arranged inside the vertical slinging frame 1, a swing arm 22 hingedly connected to one end of the slinging roller 21, and an electrically controlled telescopic member 23 whose telescopic end is hingedly connected to the other end of the swing arm 22;

[0031] The hinged door is arranged at the window, and includes a first opening and closing door 31 and a second opening and closing door 32; the first opening and closing door 31 and the second opening and closing door 32 are docked; the side end of the first opening and closing door 31 is rotatably connected to the vertical loop frame 1 through a first connecting mechanism; the side end of the second opening and closing door 32 is rotatably connected to the vertical loop frame 1 through a second connecting mechanism; the upper part of the first opening and closing door 31 is detachably fixed to the vertical loop frame 1 through a first fixing mechanism 6; the upper part of the second opening and closing door 32 is detachably fixed to the vertical loop frame through a second fixing mechanism 7.

[0032] Specifically, the vertical looper frame 1 includes two relatively parallel frame plates 13 and a cover plate 14 arranged between the tops of the two frame plates 13. A lifting lug 15 is arranged on the top of the cover plate 14 of the vertical looper frame 1. The lifting lug 15 facilitates the lifting of the vertical looper frame 1.

[0033] A base 16 is provided at the bottom of the vertical looper frame 1; the bottom of the vertical looper frame 1 is fixed to the base 16 via a detachable fixing member. The detachable fixing member is preferably, but not limited to, a bolt.

[0034] A handle 33 is provided on the outer side wall of the first opening and closing door 31 and the second opening and closing door 32 to facilitate the opening and closing of the first opening and closing door 31 and the second opening and closing door 32.

[0035] By opening a window on the operating side of the vertical loop frame 1 and arranging a hinge door at the window, it is convenient to clean up the scrap steel inside the frame, reduce the accident handling time, and improve production efficiency; when the high-speed wire rolling mill works normally, the first opening and closing door 31 and the second opening and closing door 32 remain in a docking state, and the first opening and closing door 31 and the second opening and closing door 32 are respectively fixed to the vertical loop frame 1 by the first fixing mechanism 6 and the second fixing mechanism 7, without affecting normal production; when a steel jamming accident occurs, it is only necessary to remove the first fixing mechanism 6 and the second fixing mechanism 7 and release the docking state between the first opening and closing door 31 and the second opening and closing door 32, so that the first opening and closing door 31 and the second opening and closing door 32 can be respectively rotated around the connection with the vertical loop frame 1 by the first connecting mechanism and the second connecting mechanism, thereby realizing the opening and closing of the first opening and closing door 31 and the second opening and closing door 32, so as to facilitate the handling of accidents inside the vertical loop frame with high handling efficiency; the present invention has the advantages of simple structure, easy operation, and reduced investment and maintenance costs.

[0036] As a preferred embodiment of the present invention, the first connecting mechanism includes a first fixing ear 81 fixed to the outer wall of the vertical loop frame 1, a first connecting ear 82 fixed to the outer wall of the first opening and closing door 31, and a first pin shaft 83 vertically passing through the connecting hole of the first connecting ear 82 and the fixing hole of the first fixing ear 81.

[0037] Specifically, the structural design of the first connecting mechanism can make the first opening and closing door 31 rotate around the first pin 83, so that the first opening and closing door 31 can be opened outward, which is convenient for handling internal accidents of the frame such as steel jam near the position of the first opening and closing door 31. In addition, the structural design facilitates the installation and removal of the first opening and closing door 31.

[0038] As a preferred solution of the present invention, the first connecting ear 82 includes an upper first connecting ear 821 located above the first fixing ear 81 and a lower first connecting ear 822 located below the first fixing ear 81 .

[0039] By providing two first connecting ears 82, the rotation connection between the outer end of the first opening and closing door 31 and the vertical looper frame 1 is made more firm and reliable.

[0040] As a preferred embodiment of the present invention, the second connecting mechanism includes a second fixing ear 84 fixed to the outer wall of the vertical loop frame 1, a second connecting ear 85 fixed to the outer wall of the second opening and closing door 32, and a second pin shaft 86 vertically passing through the connecting hole of the second connecting ear 85 and the fixing hole of the second fixing ear 84.

[0041] Specifically, the structural design of the second connecting mechanism can make the second opening and closing door 32 rotate around the second pin 86, so that the second opening and closing door 32 can be opened outward, which is convenient for handling internal accidents of the frame such as steel jam near the second opening and closing door 32. In addition, the structural design facilitates the installation and removal of the second opening and closing door 32.

[0042] As a preferred solution of the present invention, the second connecting ear 85 includes an upper second connecting ear located above the second fixing ear 84 and a lower second connecting ear located below the second fixing ear 85 .

[0043] By providing two second connecting ears 85, the rotation connection between the outer end of the second opening and closing door 32 and the vertical looper frame 1 is made more firm and reliable.

[0044] As a preferred embodiment of the present invention, the first opening and closing door 31 and the second opening and closing door 32 are connected by a third connecting mechanism 9; wherein the third connecting mechanism includes a third connecting ear fixedly arranged on the outer wall of the first opening and closing door 31, a third fixing ear fixedly arranged on the outer wall of the second opening and closing door 33, and a third pin shaft 91 vertically penetrated between the connecting hole of the third connecting ear and the fixing hole of the third fixing ear.

[0045] Specifically, the structure of the third connecting mechanism is the same as the first connecting mechanism and the second connecting mechanism. According to the location of the accident inside the frame, the first connecting mechanism or the second connecting mechanism can be removed to make the first opening and closing door 31 or the second opening and closing door 32 rotate around the third pin shaft relative to the second opening and closing door 32 or the first opening and closing door 31, thereby realizing the outward opening of a single door. The first opening and closing door 31 and the second opening and closing door 32 can also be formed to open oppositely by removing the third pin shaft 91, making the opening and closing method of the hinge door more flexible.

[0046] As a preferred solution of the present invention, the third connecting ear comprises an upper sheet third connecting ear located above the third fixing ear and a lower sheet third connecting ear located below the third fixing ear.

[0047] By providing two third connecting ears, the rotation connection between the second opening and closing door 32 and the first opening and closing door 31 is made more firm and reliable.

[0048] As a preferred embodiment of the present invention, the first fixing mechanism 6 includes a first connecting plate and a first pin shaft structure; the bottom end of the first connecting plate is fixed on the first opening and closing door 31, and a first connecting long hole is arranged on the first connecting plate; a first fixed long hole corresponding to the position of the first connecting long hole is arranged on the vertical loop frame 1; the first pin shaft structure includes a first pin shaft body inserted between the first connecting long hole and the first fixed long hole, and a first internal clamping joint and a first external clamping joint respectively fixed at both ends of the first pin shaft body; when the positional relationship between the first internal clamping joint and the first fixed long hole and the positional relationship between the first external clamping joint and the first connecting long hole are both in a cross structure, the first pin shaft body is fixed between the first connecting long hole and the first fixed long hole by the first external clamping joint and the first internal clamping joint; when the positional relationship between the first internal clamping joint and the first fixed long hole and the positional relationship between the first external clamping joint and the first connecting long hole are both in a straight line structure, the first external clamping joint and the first internal clamping joint release the fixation of the first pin shaft body between the first connecting long hole and the first fixed long hole.

[0049] The above structural design facilitates the first opening and closing door 31 to be fixed on the vertical looper frame 1 during operation. When an accident occurs, the fixation between the two can be released by removing the first pin body.

[0050] As a preferred solution of the present invention, the second fixing mechanism 7 includes a second connecting plate and a second pin shaft structure; the bottom end of the second connecting plate is fixed on the second opening and closing door 32, and a second connecting long hole is arranged on the second connecting plate; a second fixed long hole corresponding to the position of the second connecting long hole is arranged on the vertical loop frame 1; the second pin shaft structure includes a second pin shaft body inserted between the second connecting long hole and the second fixed long hole, and a second internal clamping joint and a second external clamping joint respectively fixed at both ends of the second pin shaft body; when the positional relationship between the second internal clamping joint and the second fixed long hole and the positional relationship between the second external clamping joint and the second connecting long hole are both in a cross structure, the second pin shaft body is fixed between the second connecting long hole and the second fixed long hole by the second external clamping joint and the second internal clamping joint; when the positional relationship between the second internal clamping joint and the second fixed long hole and the positional relationship between the second external clamping joint and the second connecting long hole are both in a straight line structure, the second external clamping joint and the second internal clamping joint release the fixation of the second pin shaft body between the second connecting long hole and the second fixed long hole.

[0051] The above structural design facilitates the second opening and closing door 32 to be fixed on the vertical looper frame 1 during operation. When an accident occurs, the fixation between the two can be released by removing the second pin shaft body.

[0052] As a preferred solution of the present invention, the electrically controlled telescopic member 23 is preferably but not limited to a cylinder; the fixed end of the cylinder is hinged to the outer top of the vertical looper frame 1.

[0053] As a preferred solution of the present invention, the outer end of the first opening and closing door 31 is detachably fixed to the vertical looper frame 1 through a third fixing mechanism; the third fixing mechanism includes a third connecting piece and a third pin shaft structure; the bottom end of the third connecting piece is fixed to the first opening and closing door 31, and a third connecting long hole is provided on the third connecting piece; a third fixing long hole corresponding to the position of the third connecting long hole is provided on the vertical looper frame 1; the third pin shaft structure includes a third pin shaft body penetrating between the third connecting long hole and the third fixing long hole and third inner pin shaft bodies respectively fixed at both ends of the third pin shaft body. The third outer card joint and the third outer card joint; when the positional relationship between the third inner card joint and the third fixed long hole and the positional relationship between the third outer card joint and the third connecting long hole are both in a cross structure, the third pin shaft body is fixed between the third connecting long hole and the third fixed long hole by the third outer card joint and the third inner card joint; when the positional relationship between the third inner card joint and the third fixed long hole and the positional relationship between the third outer card joint and the third connecting long hole are both in a straight line structure, the third outer card joint and the third inner card joint release the fixation of the third pin shaft body between the third connecting long hole and the third fixed long hole.

[0054] As a preferred solution of the present invention, the outer end of the second opening and closing door 32 is detachably fixed to the vertical looper frame 1 through a fourth fixing mechanism; the fourth fixing mechanism includes a fourth connecting piece and a fourth pin shaft structure; the bottom end of the fourth connecting piece is fixed to the second opening and closing door 32, and a fourth connecting long hole is provided on the fourth connecting piece; a fourth fixing long hole corresponding to the position of the fourth connecting long hole is provided on the vertical looper frame 1; the fourth pin shaft structure includes a fourth pin shaft body penetrating between the fourth connecting long hole and the fourth fixing long hole and fourth pin shaft bodies respectively fixed at both ends of the fourth pin shaft body. The fourth external clamp joint and the fourth internal clamp joint; when the positional relationship between the fourth internal clamp joint and the fourth fixed long hole and the positional relationship between the fourth external clamp joint and the fourth connecting long hole are both in a cross structure, the fourth pin shaft body is fixed between the fourth connecting long hole and the fourth fixed long hole by the fourth external clamp joint and the fourth internal clamp joint; when the positional relationship between the fourth internal clamp joint and the fourth fixed long hole and the positional relationship between the fourth external clamp joint and the fourth connecting long hole are both in a straight line structure, the fourth external clamp joint and the fourth internal clamp joint release the fixation of the fourth pin shaft body between the fourth connecting long hole and the fourth fixed long hole.

[0055] The third fixing mechanism and the fourth fixing mechanism facilitate the fixing of the hinge door on both sides of the window of the vertical loop frame 1 when the hinge door is working.

[0056] The method for handling steel jam accidents in a bar production line provided by the present invention comprises installing the vertical looper as described above in the present invention between adjacent frames of a high-speed wire rod rolling mill body. When a steel jam accident occurs during the production of high-speed wire rods, the steel jam accident inside the high-speed wire rod rolling mill body is handled through a hinge door on the vertical looper close to the point where the steel jam accident occurs.

[0057] It can be seen from the above specific embodiments that the method for handling steel jamming accidents in the vertical looper and bar production line provided by the present invention, by opening a window on the operating side of the vertical looper frame and arranging a hinge door at the window, is convenient for cleaning scrap steel inside the frame, reducing accident handling time and improving production efficiency; when the high-speed wire rolling mill is working normally, the first opening and closing door and the second opening and closing door remain in a docking state, and the first opening and closing door and the second opening and closing door are respectively fixed to the vertical looper frame by the first fixing mechanism and the second fixing mechanism, without affecting normal production; when a steel jamming accident occurs, it is only necessary to dismantle the first fixing mechanism and the second fixing mechanism and release the docking state between the first opening and closing door and the second opening and closing door, so that the first opening and closing door and the second opening and closing door can be respectively rotated around the connection with the vertical looper frame by the first connecting mechanism and the second connecting mechanism, thereby realizing the opening and closing between the first opening and closing door and the second opening and closing door, so as to facilitate the handling of accidents occurring inside the vertical looper frame with high handling efficiency; the present invention has the advantages of simple structure, easy operation, and reduced investment and maintenance costs.

[0058] As described above with reference to the accompanying drawings, the method for handling a steel jam in a vertical looper and a bar production line proposed according to the present invention is described by way of example. However, those skilled in the art should understand that various improvements can be made to the method for handling a steel jam in a vertical looper and a bar production line proposed by the present invention without departing from the content of the present invention. Therefore, the protection scope of the present invention should be determined by the content of the attached claims.

Claims

1. A vertical looper, arranged between adjacent frames of a high-speed wire rolling mill, characterized in that: It includes a vertical sling frame, a sling lifting mechanism and a hinge door; wherein, Along the transmission direction of the bar production line, a bar inlet and a bar outlet are respectively arranged at both ends of the vertical looper frame; a first pressing roller and a second pressing roller are respectively arranged inside the vertical looper frame near the bar inlet and the bar outlet; a window is opened on the operating side of the vertical looper frame; The sleeve lifting mechanism comprises a sleeve lifting roller arranged inside the vertical sleeve frame, a swing arm hingedly connected to one end of the sleeve lifting roller, and an electrically controlled telescopic member whose telescopic end is hingedly connected to the other end of the swing arm; The hinge door is arranged at the window, and includes a first opening and closing door and a second opening and closing door; the first opening and closing door is docked with the second opening and closing door; the side end of the first opening and closing door is rotatably connected to the vertical loop frame through a first connecting mechanism; the side end of the second opening and closing door is rotatably connected to the vertical loop frame through a second connecting mechanism; the upper part of the first opening and closing door is detachably fixed to the vertical loop frame through a first fixing mechanism; the upper part of the second opening and closing door is detachably fixed to the vertical loop frame through a second fixing mechanism.

2. The vertical looper according to claim 1, characterized in that: The first connecting mechanism includes a first fixing ear fixed to the outer side wall of the vertical loop frame, a first connecting ear fixed to the outer side wall of the first opening and closing door, and a first pin shaft vertically passing through a connecting hole of the first connecting ear and a fixing hole of the first fixing ear.

3. The vertical looper according to claim 2, characterized in that: The first connecting ear comprises an upper sheet first connecting ear located above the first fixing ear and a lower sheet first connecting ear located below the first fixing ear.

4. The vertical looper according to claim 1, characterized in that: The second connecting mechanism includes a second fixing ear fixed to the outer side wall of the vertical loop frame, a second connecting ear fixed to the outer side wall of the second opening and closing door, and a second pin shaft vertically passing through a connecting hole of the second connecting ear and a fixing hole of the second fixing ear.

5. The vertical looper according to claim 4, characterized in that: The second connecting ear comprises an upper sheet second connecting ear located above the second fixing ear and a lower sheet second connecting ear located below the second fixing ear.

6. The vertical looper according to claim 1, characterized in that: The first opening and closing door and the second opening and closing door are connected via a third connecting mechanism; wherein, The third connecting mechanism includes a third connecting ear fixed to the outer side wall of the first opening and closing door, a third fixing ear fixed to the outer side wall of the second opening and closing door, and a third pin shaft vertically passing through a connecting hole of the third connecting ear and a fixing hole of the third fixing ear.

7. The vertical looper according to claim 6, characterized in that: The third connecting ear comprises an upper third connecting ear located above the third fixing ear and a lower third connecting ear located below the third fixing ear.

8. The vertical looper according to claim 1, characterized in that: The first fixing mechanism includes a first connecting piece and a first pin structure; The bottom end of the first connecting piece is fixed on the first opening and closing door, and a first connecting long hole is arranged on the first connecting piece; a first fixing long hole corresponding to the position of the first connecting long hole is arranged on the vertical loop frame; The first pin shaft structure comprises a first pin shaft body passing through the first connecting long hole and the first fixing long hole, and a first inner clamping joint and a first outer clamping joint respectively fixed at two ends of the first pin shaft body; When the positional relationship between the first inner clamping joint and the first fixed long hole and the positional relationship between the first outer clamping joint and the first connecting long hole are both in a cross structure, the first pin shaft body is fixed between the first connecting long hole and the first fixed long hole by the first outer clamping joint and the first inner clamping joint; When the positional relationship between the first inner card joint and the first fixed long hole and the positional relationship between the first outer card joint and the first connecting long hole are both in a straight line structure, the first outer card joint and the first inner card joint release the fixation of the first pin shaft body between the first connecting long hole and the first fixed long hole.

9. The vertical looper according to claim 1, characterized in that: The second fixing mechanism includes a second connecting piece and a second pin structure; The bottom end of the second connecting piece is fixed on the second opening and closing door, and a second connecting long hole is arranged on the second connecting piece; and a second fixing long hole corresponding to the position of the second connecting long hole is arranged on the vertical loop frame; The second pin shaft structure comprises a second pin shaft body passing through the second connecting long hole and the second fixing long hole, and a second inner clamping joint and a second outer clamping joint respectively fixed at two ends of the second pin shaft body; When the positional relationship between the second inner clamping joint and the second fixed long hole and the positional relationship between the second outer clamping joint and the second connecting long hole are both in a cross structure, the second pin shaft body is fixed between the second connecting long hole and the second fixed long hole by the second outer clamping joint and the second inner clamping joint; When the positional relationship between the second inner snap-in joint and the second fixed long hole and the positional relationship between the second outer snap-in joint and the second connecting long hole both form a straight line structure, the second outer snap-in joint and the second inner snap-in joint release the fixation of the second pin shaft body between the second connecting long hole and the second fixed long hole.

10. A method for handling steel jamming accidents in a bar production line, characterized in that: The vertical looper as described in any one of claims 1 to 9 is installed between adjacent frames of the high-speed wire rod rolling mill body. When a steel jam occurs during the production of high-speed wire rods, the steel jam inside the high-speed wire rod rolling mill body is handled through the hinge door on the vertical looper close to the point where the steel jam occurs.

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