Method for taking out strip steel section in coiling machine

Abstract

The invention relates to the technical field of metallurgy control, in particular to a method for taking out a strip steel section in a coiling machine. The invention provides a method for taking out a strip steel section in a coiling machine, which comprises the following steps of: compressing stacked steel, and rotating a coiling block and a plurality of wrapper rollers in the coiling machine to an initial state, so that the strip steel section is compressed towards the direction of the coiling block at various angles; steel piling adjustment is conducted, specifically, the winding drum is rotated to adjust the diameter to the limit state, and the protruding part of the strip steel section during compression is flattened; discharging and hoisting, and hoisting two opposite sides of the strip steel section by a hoisting mechanism above the outlet of the coiling machine until the strip steel section is separated from the two sides of the coiling block; after the coil unloading mechanism ascends on the side opposite to the outlet of the coiling machine to make contact with the strip steel section, the coil unloading mechanism moves towards the outlet direction of the coiling machine to drag the strip steel section, and when the coil unloading mechanism pushes the strip steel section to be limited, the hoisting mechanism hoists the strip steel section again, and the coil unloading mechanism unloads the strip steel section. And after the coil unloading mechanism ascends again to make contact with the strip steel section, the coil unloading mechanism moves outwards to drag the strip steel section till the strip steel section is taken out of the coiling machine.

Description

Technical Field

[0001] The present disclosure relates to the field of metallurgical control technology, and in particular to a method for removing a strip steel segment from a coiler. Background Art

[0002] When a steel pile accident occurs in the hot rolling coiler, a large number of bent strip steel segments will accumulate. Due to their irregular shape and the fact that the coiler is located underground, it is extremely inconvenient to handle them. Generally, operators enter the coiler and cut them piece by piece and then take them out. This takes a long time and has a high risk factor. The coiler cannot be put into use, which reduces the production rhythm of the production line. Summary of the invention

[0003] The present disclosure aims to solve at least one of the technical problems existing in the prior art or related art.

[0004] To this end, the present disclosure provides a method for removing a strip steel segment in a coiler, comprising:

[0005] Compressing the steel pile, rotating the reel and a plurality of auxiliary reel rollers in the coiler to an initial state, so that the strip steel segment is compressed toward the reel at various angles;

[0006] Steel stacking adjustment: rotating the reel to adjust the diameter to the limit state, and flattening the protruding part of the strip steel segment during compression;

[0007] Unloading and lifting, the lifting mechanism is located above the outlet of the coiler to lift the opposite sides of the strip steel section until the strip steel section is out of contact with the two sides of the reel;

[0008] The piled steel is unloaded, and the unloading mechanism is raised on the side opposite to the coiler outlet to contact the strip steel segment, and then the unloading mechanism moves toward the coiler outlet direction to drag the strip steel segment. When the unloading mechanism is limited in pushing the strip steel segment, the lifting mechanism is positioned to lift the strip steel segment again. After the unloading mechanism rises again to contact the strip steel segment, it moves outward to drag the strip steel segment until the strip steel segment leaves the coiler.

[0009] In a feasible implementation manner, in the step of compressing the steel pile, a plurality of auxiliary winding rollers are used to perform delayed compression, and the delay time is 3 seconds to 5 seconds.

[0010] In a feasible implementation manner, in the step of adjusting the steel pile, the rotation speed of the reel and the auxiliary reel is set to 0.4-0.6 m / s.

[0011] In a feasible implementation manner, the compaction speed of the auxiliary winding roller is 0.1-0.2 m / s.

[0012] In a feasible implementation manner, the tail of the strip steel segment is placed at the three o'clock position.

[0013] In a feasible embodiment, the lifting mechanism includes an overhead crane and a lifting rope. The lifting rope is located above the outlet of the coiler to lift the opposite sides of the strip steel segment and straighten the lifting rope through the overhead crane. When the unloading mechanism pushes the strip steel segment to be restricted, the lifting rope is straightened again, so that the lifting rope maintains an upward pulling force.

[0014] In a feasible implementation manner, the overhead crane is located obliquely above the coiler outlet.

[0015] In a feasible implementation manner, the unwinding mechanism closes a plurality of the auxiliary winding rollers before pushing the strip steel segment, so that the distance between the auxiliary winding rollers and the strip steel segment is in the range of 200 mm to 300 mm.

[0016] In a feasible implementation manner, when the unloading mechanism moves outward to drag the strip steel segment, the reel rotates reciprocatingly.

[0017] In a feasible implementation manner, the roll unloading mechanism is configured as a roll unloading trolley.

[0018] The above description is only an overview of the technical solution provided by the present disclosure. In order to more clearly understand the technical means of the present disclosure, it can be implemented according to the contents of the specification. In order to make the above and other features and effects of the present disclosure more obvious and easy to understand, the implementation methods of the present disclosure are specifically listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0021] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the exemplary embodiments below. The accompanying drawings are only for the purpose of illustrating exemplary embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0022] Figure 1 It is a front view structural schematic diagram of the present disclosure;

[0023] Figure 2 It is a structural schematic diagram of the upper seat of the present disclosure;

[0024] Figure 3 It is a schematic diagram of the side structure of the present disclosure.

[0025] in, Figures 1 to 3 The corresponding relationship between the reference numerals and the component names is: 1-reel; 2-reeling roller; 3-strip steel section; 4-reeling mechanism; 5-overhead crane; 6-lifting rope. DETAILED DESCRIPTION

[0026] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0028] At present, after a steel pile accident occurs in a hot rolling coiler, a large number of curved strip steel segments will be piled up. Due to their irregular shape and the underground location of the coiler, it is extremely inconvenient to handle them. Generally, the operator enters the coiler to cut and remove them in sections, which takes a long time and has a high risk factor. The coiler cannot be put into use, which reduces the production rhythm of the production line. After the steel is piled up in the coiler, the scrap steel can be cold-coiled; but due to abnormalities such as the slippage of the coiler, the strip steel is not rolled on the coiler, resulting in the inability to cold-coil. The scrap steel can only be cut off at the pinch roller. The scrap steel on the coiler is cold-coiled using other coilers, and the parts in the coiler need to be cut into small sections and hoisted out section by section. The processing time is long, and the cutting operation in the coiler has certain risk factors. In the prior art, some coilers can move the lower part of the machine out of the rolling line for processing. Although they do not need to operate in the coiler, they still need to be cut and processed section by section.

[0029] Based on this, the embodiment of the present disclosure provides a method for removing a strip steel segment in a coiler, which is applied to a hot rolling coiler to obtain a strip steel segment wound on a reel in the coiler. The reel and auxiliary winding roller in the coiler are rotated to shrink the strip steel segment until it cannot be retracted, thereby reducing the volume of the strip steel segment. The under-machine equipment of the coiler cooperates with the overhead crane to safely and quickly remove the strip steel segment in the coiler, thereby reducing cutting operations and greatly saving accident handling time.

[0030] The method for removing the strip steel section in the coiler is described in detail below through a specific embodiment:

[0031] Reference Figures 1 to 3 As shown, the present disclosure provides a method for removing a strip steel segment in a coiler, comprising the following steps:

[0032] In the prior art, after the steel is piled up in the coiler, the scrap steel can be cold-coiled; however, due to abnormalities such as the slipping of the coiler, the strip steel is not wound on the coiler, resulting in the inability to cold-coil. The scrap steel can only be cut at the clamping roller, and the scrap steel on the coiler is cold-coiled using other coilers, while the parts inside the coiler need to be cut into small sections and hoisted out section by section. The processing time is long, and the cutting operation in the coiler has certain risk factors. In the prior art, some coilers can move the lower part of the machine out of the rolling line for processing. Although they do not need to operate in the coiler, they still need to be cut and processed section by section. In the present disclosure, after the strip steel segment 3 located in the coiler is obtained, it is processed according to the following steps.

[0033] First, the steel pile is compressed, and the reel 1 and the plurality of auxiliary winding rollers 2 in the coiler are rotated to the initial state. The initial state of the present disclosure is that the reel 1 is contracted to the minimum diameter, and the auxiliary winding rollers 2 are closed to the minimum. When the auxiliary winding rollers 2 are closed to the minimum, the plurality of auxiliary winding rollers 2 are moved closer to the reel 1. Figure 1 As shown, the strip steel segment 3 will have gaps with irregular spacing due to the steel piling. The cooperation of the reel 1 and multiple auxiliary winding rollers 2 is utilized to compress the strip steel segment 3 toward the reel 1 at various angles, so that the strip steel segment 3 is compressed to be incompressible, wherein the auxiliary winding roller 2 serves as a mechanism for compressing the steel piling. The multiple auxiliary winding rollers 2 in the winding machine disclosed in the present invention are prior art and will not be described in detail here.

[0034] When compressing the steel pile, the strip steel segment 3 is irregular, so some edges and corners will appear. At this time, the reel 1 is rotated to adjust the diameter to the limit state. Through the rotation of the reel 1 and the cooperation of the auxiliary reel 2, the protruding part of the strip steel segment 3 during compression is flattened to facilitate the unloading of the strip steel segment 3. The limit state of the present disclosure is that the reel 1 expands to the maximum diameter.

[0035] Unloading and lifting: the lifting mechanism is located above the outlet of the coiler to lift the opposite sides of the strip steel section 3 until the strip steel section 3 is out of contact with the two sides of the reel 1;

[0036] The steel pile is unloaded, and the unloading coil mechanism 4 is raised on the side opposite to the coiler outlet to contact the strip steel section 3. At this time, the unloading coil mechanism 4 is located at the innermost side of the reel 1, such as Figure 1The plane shown is the outermost side of the reel 1. Furthermore, the tail of the strip steel segment 3 is placed at the three o'clock position to facilitate the unloading of the strip steel segment 3. The unloading mechanism 4 moves and drags the strip steel segment 3 toward the exit direction of the coiler. When the unloading mechanism 4 is limited in pushing the strip steel segment 3, the lifting mechanism lifts the strip steel segment 3 again. After the unloading mechanism 4 rises again to contact the strip steel segment 3, it moves outward and drags the strip steel segment 3 until the strip steel segment 3 leaves the coiler. The lifting mechanism is designed to pull up the strip steel and the reel 1 to achieve a certain degree of separation, and cannot directly pull out the compressed strip steel segment 3. The unloading mechanism 4 is used to apply a force to move the strip steel segment 3 from the innermost side to the outermost side. However, when moving the strip steel segment 3, the movement is limited because the pulling force of the lifting mechanism is insufficient, resulting in the strip steel segment 3 being unable to separate from the reel 1. At this time, the lifting device lifts again to provide pulling force, and can cooperate with the unloading mechanism 4 to gradually move the strip steel segment 3 out of the reel 1.

[0037] In some embodiments, in the step of compressing the steel, delayed compression is performed using multiple auxiliary rolls 2, and the delay time is 3 to 5 seconds. In this embodiment, the delayed compression of the auxiliary rolls 2 can give the strip steel segment 3 a certain deformation time, and can better compress the strip steel segment 3 to the minimum size. When the delayed compression time is less than 3 seconds, the strip steel segment 3 cannot be fully compressed; the strip steel segment 3 needs a certain travel time when being compressed. When the delayed compression time exceeds five seconds, some irregular strip steel segments 3 cannot be fully deformed.

[0038] In some embodiments, in the step of adjusting the steel pile, the rotation speed of the reel 1 and the auxiliary winding roller 2 is set to 0.4-0.6 m / s. When the rotation speed of the reel 1 and the auxiliary winding roller 2 is less than 0.4 m / s, it is difficult for the reel 1 and the auxiliary winding roller 2 to drive the strip steel segment 3. When the rotation speed of the reel 1 and the auxiliary winding roller 2 is greater than 0.6 m / s, the reel 1 and the auxiliary winding roller 2 are prone to slippage with the strip steel segment 3 due to excessive speed. When the rotation speed of the reel 1 and the auxiliary winding roller 2 is between 0.4 and 0.6 m / s, it can not only drive the strip steel segment 3 to rotate normally, but also ensure that there is no slippage between the reel 1 and the auxiliary winding roller 2 and the strip steel segment 3.

[0039] In some embodiments, the compaction speed of the auxiliary winding roller 2 is 0.1-0.2 m / s. When the compaction speed of the auxiliary winding roller 2 is less than 0.1 m / s, the impact of the auxiliary winding roller 2 on the strip steel segment 3 is too small, and the compaction effect is not good; when the compaction speed of the auxiliary winding roller 2 is greater than 0.2 m / s, the impact of the auxiliary winding roller 2 on the strip steel segment 3 is too large, which easily causes the auxiliary winding roller 2 assembly to stop rotating.

[0040] In some embodiments, the lifting mechanism includes a crane 5 and a lifting rope 6. The lifting rope 6 is located above the outlet of the coiler to lift the opposite sides of the strip steel segment 3 and straighten the lifting rope 6 through the crane 5. When the unloading mechanism 4 pushes the strip steel segment 3 to be restricted, the lifting rope 6 is straightened again, so that the lifting rope 6 maintains an upward pulling force.

[0041] In this embodiment, the overhead crane 5 is moved obliquely upward to the coiler, and simultaneously lifts the left and right sides of the strip steel segment 3 and straightens the lifting rope 6 until the strip steel segment 3 is out of contact with the left and right sides of the reel 1; at this time, the unloading mechanism 4 is used to rise at the innermost side to contact the strip steel segment 3, and the unloading mechanism 4 moves outward to drag the strip steel segment 3 until the strip steel segment 3 cannot move outward. At this time, since the strip steel segment 3 has moved outward a certain distance, the lifting rope 6 is no longer in a straightened state. At this time, the overhead crane 6 is raised again to straighten the lifting rope 6, and the unloading mechanism 4 returns to the innermost side, rises again to contact the strip steel segment 3, and then moves outward to drag the strip steel segment 3 until the strip steel segment 3 leaves the coiler. Further, the overhead crane 5 is located obliquely above the coiler outlet to facilitate the lifting of the strip steel segment 3.

[0042] In some embodiments, the unwinding mechanism 4 closes a plurality of auxiliary winding rollers 2 before pushing the strip steel segment 3, until the distance between the auxiliary winding rollers 2 and the strip steel segment 3 is in the range of 200 mm to 300 mm, so as to prevent the strip steel segment 3 from deflecting.

[0043] In some embodiments, when the unloading mechanism 4 moves outward to drag the strip steel segment 3 , the reel 1 reciprocates to make the strip steel segment 3 more easily detach from the reel 1 .

[0044] In some embodiments, the roll unloading mechanism 4 is configured as a roll unloading trolley.

[0045] In the present disclosure, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise expressly defined. The terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to the specific circumstances.

[0046] In the description of the present disclosure, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left", "right", "front", "back", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be understood as a limitation on the present disclosure.

[0047] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0048] The above are only preferred embodiments of the present disclosure and are not intended to limit the present disclosure. For those skilled in the art, the present disclosure may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A method for removing a strip steel section from a coiler, characterized in that: include: Compressing the steel pile, rotating the reel and a plurality of auxiliary reel rollers in the coiler to an initial state, so that the strip steel segment is compressed toward the reel at various angles; Steel stacking adjustment: rotating the reel to adjust the diameter to the limit state, and flattening the protruding part of the strip steel segment during compression; Unloading and lifting, the lifting mechanism is located above the outlet of the coiler to lift the opposite sides of the strip steel section until the strip steel section is out of contact with the two sides of the reel; The piled steel is unloaded, and the unloading mechanism is raised on the side opposite to the coiler outlet to contact the strip steel segment, and then the unloading mechanism moves toward the coiler outlet direction to drag the strip steel segment. When the unloading mechanism is limited in pushing the strip steel segment, the lifting mechanism is positioned to lift the strip steel segment again. After the unloading mechanism rises again to contact the strip steel segment, it moves outward to drag the strip steel segment until the strip steel segment leaves the coiler.

2. The method for removing a strip steel segment from a coiler according to claim 1, characterized in that: In the steel stacking and compression step, a plurality of auxiliary winding rollers are used to perform delayed compression, and the delay time is 3 seconds to 5 seconds.

3. The method for removing a strip steel segment from a coiler according to claim 1, characterized in that: In the step of adjusting the steel pile, the rotation speeds of the reel and the auxiliary winding roller are set to 0.4-0.6 m / s.

4. The method for removing a strip steel segment from a coiler according to claim 3, characterized in that: The compaction speed of the auxiliary winding roller is 0.1-0.2 m / s.

5. The method for removing a strip steel segment from a coiler according to claim 1, characterized in that: The tail of the strip section is placed at the three o'clock position.

6. The method for removing a strip steel segment from a coiler according to claim 1, characterized in that: The lifting mechanism includes a crane and a lifting rope. The lifting rope is located above the outlet of the coiler to lift the opposite sides of the strip steel segment and straighten the lifting rope through the crane. When the unloading mechanism pushes the strip steel segment to be restricted, the lifting rope is straightened again, so that the lifting rope maintains an upward pulling force.

7. The method for removing a strip steel segment from a coiler according to claim 6, characterized in that: The overhead travelling crane is located obliquely above the outlet of the coiler.

8. The method for removing a strip steel segment from a coiler according to claim 1, characterized in that: The unloading mechanism closes a plurality of the auxiliary winding rollers before pushing the strip steel segment, until the distance between the auxiliary winding rollers and the strip steel segment is in the range of 200 mm to 300 mm.

9. The method for removing a strip steel segment from a coiler according to claim 1, characterized in that: When the unloading mechanism moves outward to drag the strip steel section, the reel rotates back and forth.

10. The method for removing a strip steel segment from a coiler according to any one of claims 1 to 9, characterized in that: The coil unloading mechanism is configured as a coil unloading trolley.

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