A system and method for straightening a belt head using a belt winder

Abstract

This invention discloses a system and method for straightening strip heads using a belt winding aid, comprising a strip shaper roller, a disc shear, a guide roller, a coiler core shaft, a disc shear guide plate, a feeding roller, a belt winding aid, and a threading guide plate. The strip shaper roller, disc shear, guide roller, and coiler core shaft are arranged sequentially along the strip's forward direction. The disc shear guide plate is movably disposed between the strip shaper roller and the guide roller, and has a tilted state that lifts up the strip head. The feeding roller is movably disposed and can be adjusted to cooperate with the guide roller to press the strip. The belt winding aid cooperates with the coiler core shaft. The threading guide plate is movably disposed between the guide roller and the coiler core shaft, and has a working state that allows the strip head to be inserted into the gap formed by the belt winding aid and the coiler core shaft. The strip head is straightened by the wrapping effect formed by the belt of the belt winding aid and the coiler core shaft.

Description

Technical Field

[0001] This invention relates to the field of metal processing technology, and in particular to a system and method for straightening belt heads using a belt winding aid. Background Technology

[0002] Single-stand reversible rolling mills are prone to strip breakage accidents during the billet pass due to factors such as start-up parameter settings, raw material shape and profile, and strip threading deviation. The breakage points are always located on the mill's process exit side. During the strip breakage accident handling process, after the breakage is removed using the exit-side disc shear, the strip head is subjected to the shearing force of the disc shear and becomes bent downwards, causing the sheared strip head to be unable to advance and be bitten into the jaws.

[0003] If the lead strip is pulled back to the process entrance area for re-straightening, it will not only affect the threading time, but also cause the outer ring of the raw material roll on the entrance side to become loose and misaligned during the pullback process. This will result in an excessively large tension deviation after threading, requiring the roll to be straightened before restarting the machine. This will not only affect the start-up time, but also reduce the yield per roll and increase production costs. Summary of the Invention

[0004] To address the aforementioned problems, this application provides a system and method for straightening belt heads using a belt winding aid.

[0005] This application provides a system for straightening strip heads using a belt winding aid, including a shaper roller, a disc shear, a guide roller, a coiler core shaft, a disc shear guide plate, a feed roller, a belt winding aid, and a threading guide plate. The shaper roller, disc shear, guide roller, and coiler core shaft are arranged sequentially along the strip's forward direction. The disc shear guide plate is movably disposed between the shaper roller and the guide roller, and has a tilted state that lifts up the strip head. The feed roller is movably disposed and can be adjusted to cooperate with the guide roller to press the strip. The belt winding aid cooperates with the coiler core shaft. The threading guide plate is movably disposed between the guide roller and the coiler core shaft, and has a working state that allows the strip head to be inserted into the gap formed by the belt winding aid and the coiler core shaft. The strip head is straightened by the wrapping effect formed by the belt of the belt winding aid and the coiler core shaft.

[0006] In some implementations, the winding machine core includes a belt mode, which ensures that the lifting height of the belt guide plate is sufficient to allow the belt head to enter the belt gap when the winding machine core is in belt mode.

[0007] In some implementations, the winding core includes a threading mode, which is restored to the threading mode after the belt head straightening is completed, to facilitate subsequent threading operations.

[0008] In some embodiments, the belt winding aid includes a first state and a second state. In the first state, the belt winding aid is spaced apart from the winding machine core shaft. In the second state, the belt portion of the belt winding aid is tightly attached to the winding machine core shaft and forms a gap for the belt head to be inserted.

[0009] In some embodiments, one end of the disc shear guide is rotatably mounted on the frame, and when in the tilted state, the other end of the disc shear guide lifts the belt head.

[0010] In some embodiments, one end of the threading guide is rotatably mounted on the frame, and when in operation, the other end of the threading guide is raised toward the gap formed by the belt winder and the winding machine core shaft, and the strip moves along the upper surface of the threading guide.

[0011] A method for straightening belt ends using a belt winding aid, employing the aforementioned system, includes: after the disc shear on the exit side completes the end-cutting operation on the strip steel, resulting in a belt end buckling, the disc shear guide plate is raised to lift the belt end; after lifting the belt end, the strip steel is advanced in linkage mode until the belt end is delivered to the guide roller, and the feed roller is lowered to press the belt end; after the guide roller and feed roller cooperate to press the belt end, the belt winding aid is lowered, the belt threading guide plate is raised, and the belt feeder continues to move so that the belt end is inserted into the gap formed by the belt of the belt winding aid and the winding machine core shaft; after the belt end is inserted into the gap, the belt is fed in linkage mode so that the belt end extends a certain distance into the gap, and the belt end is straightened by the wrapping formed by the belt and the winding machine core shaft.

[0012] In some implementations, after the belt head is inserted into the gap, the belt is fed in the linkage mode so that the belt head extends into the gap by 10-15cm.

[0013] In some implementations, the disc shear guide is lowered after the belt head is pressed by the feed rollers.

[0014] In some implementations, the winding machine core shaft is selected to belt mode before the belt winding aid is lowered; after the belt head straightening is completed, the belt winding aid is opened, the belt threading guide is lowered, and the winding machine core shaft is returned to the belt threading mode.

[0015] The beneficial effects of this application are as follows: It provides a system for straightening belt ends using a belt winding aid. The belt end straightening is achieved through a belt winding aid and mandrel device on the process exit side of the rolling mill. The system includes a shaper roller, a disc shear, guide rollers, a coiler mandrel, a disc shear guide plate, a feed roller, a belt winding aid, and a threading guide plate. After the disc shear completes the cut-off operation, the belt end is undercut due to the shearing force of the disc shear. First, the disc shear guide plate is raised to lift the belt end. Then, in a linked mode, the strip is advanced, sending the belt end to the guide roller. The feed roller is lowered to press the belt end. Next, the belt winding aid is lowered, and the threading guide plate is raised. In a linked mode, the belt is fed so that the belt end is inserted into the gap formed by the belt and the mandrel. Then, in a linked mode… In this mode, the belt feed allows the belt head to penetrate a certain distance into the gap, and the belt head is straightened by the wrapping formed by the belt and the mandrel. The application method of this system can achieve belt head straightening. Based on the exit equipment structure of the rolling mill itself, and with its belt winding aid and mandrel, it realizes a simple and reliable belt head straightening and threading operation, thus avoiding the defects of additional straightening equipment. The belt head moves forward throughout the entire process, avoiding the need to pull the belt head back to the entrance area for a straightening operation again. This avoids the problem of the outer ring of the raw material coil running off-center and mis-layering caused during the pullback process. The operation is simple and quick. After the threading is completed, the rolling mill can start up quickly, solving the problems of long empty winding time and low overall coil yield, which helps to reduce production costs. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention.

[0017] Figure 1 This is a diagram illustrating the downward-facing buckle.

[0018] Figure 2 A first schematic diagram of the system and method for straightening belt heads using a belt winding aid provided in this application;

[0019] Figure 3 A second schematic diagram of the system and method for straightening belt heads using a belt winding aid provided in this application;

[0020] Figure 4 A third schematic diagram of the system and method for straightening belt heads using a belt winding aid provided in this application;

[0021] Figure 5 A fourth schematic diagram of the system and method for straightening belt heads using a belt winding aid provided in this application;

[0022] Figure 6 The fifth schematic diagram is provided for the system and method of straightening belt heads using a belt winding aid provided in this application.

[0023] Attached diagram labels: 1-Strip steel, 2-Feeding roller, 3-Strip shaper roller, 4-Disc shear, 5-Disc shear guide plate, 6-Guide roller, 7-Threading guide plate, 8-Winder core shaft, 9-Belt winding aid. Detailed Implementation

[0024] Single-stand reversible rolling mills are prone to strip breakage accidents during the billet pass due to factors such as start-up parameter settings, raw material shape and profile, and strip threading deviation. The breakage points are always located on the mill's process exit side. During the handling of strip breakage accidents, after the breakage is removed using the exit-side disc shear, the strip head is subjected to shearing force from the disc shear, causing it to buckle and prevent it from advancing and engaging with the jaws. Pulling the strip head back to the process entry area for re-straightening presents a series of problems.

[0025] Example 1

[0026] Regarding the phenomenon of leading the way in lowering one's head, such as Figure 1 As shown, Figure 1 This application discloses a system for straightening belt heads using a belt winding aid, as shown in the schematic diagram. The system includes a shaper roller 3, a disc shear 4, a guide roller 6, a coiler mandrel 8, a disc shear guide plate 5, a feed roller 2, a belt winding aid 9, and a threading guide plate 7. The disc shear 4 is located on the mill's process exit side, and the coiler mandrel 8 and belt winding aid 9 are mill exit equipment. This system achieves belt head straightening through the belt winding aid 9 and mandrel equipment on the mill's process exit side.

[0027] Among them, the strip shaper roller 3, the disc shear 4, the guide roller 6, and the coiler core shaft 8 are arranged sequentially along the forward direction of the strip 1.

[0028] The disc shear guide plate 5 is movably positioned between the shape measuring roller 3 and the guide roller 6. This movable positioning allows for adjustment of the disc shear guide plate 5's position during specific applications, including positioning it in a tilted state. Please refer to... Figure 2 , Figure 2 This demonstrates that when the disc shear guide plate 5 is in a tilted state, it can lift the head of the strip steel 1 for subsequent forward movement.

[0029] Feed roller 2 is movably mounted on the frame. Please refer to the comparison. Figure 2 and Figure 3 This demonstrates the different positional states of the feed roller 2 as it moves. Please refer to... Figure 3 This demonstrates that the feeding roller 2 and the guide roller 6 work together to press the strip 1, and then the strip 1 continues to move forward after being pressed.

[0030] The belt winding aid 9 cooperates with the winding machine core shaft 8. During belt head straightening, the belt and the winding machine core shaft 8 are in close contact. Figure 4 and Figure 5 As shown, its working method will be explained in conjunction with the threading guide plate 7.

[0031] Please compare and refer to the above. Figure 3 and Figure 4 The two positions of the threading guide plate 7 are shown. In detail, the threading guide plate 7 is movably set between the guide roller 6 and the coiler core shaft 8. When the strip steel 1 continues to move forward, it is smoothly guided to the coiler core shaft 8 through the threading guide plate 7.

[0032] Regarding the guiding effect of the threading guide plate 7 on the head of the strip steel 1, in this system and application method, when the threading guide plate 7 is in working state, the head of the strip steel 1 is inserted into the gap formed by the belt winding aid 9 and the winding machine core shaft 8. The strip steel 1 completes the straightening of the head by wrapping the belt of the belt winding aid 9 and the winding machine core shaft 8.

[0033] This system enables secondary straightening and threading of the strip head based on the mill exit equipment, avoiding the need to pull the strip head back to the entrance area for a straightening operation, saving time on the rewinding operation, and also avoiding the problem of misalignment of the outer ring of the raw material coil caused by the rewinding process. It solves the technical problem that after the rewinding and rethreading is completed, the steel coil needs to be wound properly, which prevents the machine from starting smoothly.

[0034] This system, based on the mill's own exit equipment structure and in conjunction with its belt winding aid 9 and mandrel, achieves a simple and reliable strip head straightening and threading operation, thus avoiding the defects of additional straightening equipment. The strip head moves forward throughout the entire process, avoiding the need to pull it back to the entry area for a straightening operation, and preventing the problem of misalignment and layering of the outer ring of the raw material coil caused during the pullback process. Operation is simple and quick. After threading, the mill can start up quickly, solving the problems of long idle winding time and low overall coil yield, which helps reduce production costs.

[0035] Regarding the winding mechanism shaft 8, it has a belt mode. When the winding mechanism shaft 8 is in belt mode, it ensures that the lifting height of the belt guide plate 7 is sufficient to allow the belt head to enter the belt gap.

[0036] The winding mechanism spindle 8 also features a threading mode. After the belt head straightening is completed, the winding mechanism spindle 8 returns to the threading mode to facilitate subsequent threading operations.

[0037] In some embodiments, the belt winder 9 includes a first state and a second state. When the belt winder 9 is in the first state, please refer to... Figure 2 and Figure 3 The belt winder 9 and the winding machine core shaft 8 are positioned such that the belt winder 9 and the winding machine core shaft 8 are spaced apart, with the belt winder 9 being away from the winding machine core shaft 8. When the belt winder 9 is in the second state, please refer to... Figure 4 physical education Figure 5The position of the belt winder 9 and the winding machine core shaft 8 is shown. At this time, the belt part of the belt winder 9 is in close contact with the winding machine core shaft 8, forming a gap for the belt head to be inserted.

[0038] It should be noted that regarding the aforementioned gap where the belt tip is inserted, generally speaking, when the belt winder 9 is in the second state, the belt portion is tightly pressed against the outer periphery of the winding mechanism shaft 8. After the belt tip is inserted, a gap is formed in the geometric space between the belt and the winding mechanism shaft 8. The gaps formed by the belt winder 9 and the winding mechanism shaft 8, as well as the belt gaps mentioned above, all refer to the belt tip being inserted between the belt and the winding mechanism shaft 8, so that the belt tip straightening is achieved by wrapping the belt of the belt winder 9 with the winding mechanism shaft 8.

[0039] Regarding the movable configuration of the disc shear guide 5, in some embodiments, it is rotatable. Please refer to the comparison. Figure 1 and Figure 2 The disc shear guide plate 5 is rotatably mounted on the frame at one end. When it is in the tilted state, the other end of the disc shear guide plate 5 lifts up the belt head.

[0040] Regarding the movable configuration of the threading guide 7, in some embodiments, it is rotatable. Please refer to the comparison. Figure 3 and Figure 4 The belt threading guide 7 is rotatably mounted on the frame at one end. When in operation, the other end of the belt threading guide 7 is raised toward the gap formed by the belt winder 9 and the winding core shaft 8, and the strip 1 moves along the upper surface of the belt threading guide 7.

[0041] Please refer to Figures 1 to 6 The rotating end of the disc shear guide plate 5 is relatively closer to the guide roller 6 than the other end, and the rotating end of the belt guide plate 7 is relatively closer to the guide roller 6 than the other end.

[0042] In other possible implementation schemes, the movement of the disc shear guide plate 5 and the belt guide plate 7 can also be achieved by a combination of overall movement, linear movement and flipping, but these schemes are not as simple and practical as the rotation schemes described above.

[0043] Example 2

[0044] Based on the system for straightening belt heads using a belt winding aid in Embodiment 1, a method for straightening belt heads using a belt winding aid is disclosed, comprising:

[0045] On the export side, the disc shears on the 4th pair of strip steel 1 complete the end-cutting operation, such as... Figure 1 As shown, after the belt head buckles downwards, the disc shear guide plate 5 is raised to lift the belt head, as shown. Figure 2 As shown;

[0046] After the lead is lifted, the strip 1 advances in the linkage mode until the lead is delivered to the guide roller 6, as shown. Figure 3 As shown, the feed roller 2 is lowered to press the belt head;

[0047] After the guide roller 6 and the feed roller 2 cooperate to press the belt head together, as Figure 4 As shown, lower the belt winder 9, raise the belt guide plate 7, and continue to move the belt feeder so that the belt head is inserted into the gap formed between the belt of the belt winder 9 and the winding core shaft 8.

[0048] like Figure 5 As shown, after the belt head is inserted into the gap, the belt is fed in the linkage mode to extend the belt head into the gap a certain distance, and the belt head is straightened by the wrapping formed by the belt and the winding machine core shaft 8.

[0049] Regarding the feeding of the belt in the linkage mode to extend the belt head into the gap by a certain distance, in some implementations, it is limited to 10-15cm after the belt head is inserted into the gap, which can better ensure the straightening effect of the belt head.

[0050] In addition, by adjusting the lifting height of the disc shear guide plate 5, the lifting height of the belt head is ensured, so that the belt head can be smoothly delivered to the guide roller area.

[0051] In some embodiments, after the belt head is pressed by the feed roller 2, the disc shear guide 5 is lowered, such as... Figure 4 As shown in the disc shear guide plate 5, it facilitates the smooth forward movement of the strip steel 1.

[0052] In some implementations, before lowering the belt winding aid 9, the winding core shaft 8 is selected to belt mode to ensure that the lifting height of the belt guide plate 7 is sufficient to allow the belt head to enter the belt gap.

[0053] In some implementation methods, please refer to Figure 6 After the belt head is straightened, open the belt winding aid 9, lower the belt threading guide plate 7, and restore the winding machine core shaft 8 to the belt threading mode to facilitate subsequent belt threading operations.

[0054] Using the above method, secondary straightening and threading of the strip head is achieved based on the mill exit equipment, avoiding the need to pull the strip head back to the entrance area for a straightening operation again, saving the time of the rewinding operation, and also avoiding the problem of misalignment of the outer ring of the raw material coil due to the rewinding process. This solves the technical problem that after the rewinding and rethreading is completed, the steel coil needs to be wound properly, which prevents the machine from starting smoothly.

[0055] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention.

[0056] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A system for straightening a belt head using a belt wrapper, characterized by, The system includes: The strip shaper roller, disc shear, guide roller, and coiler core shaft are arranged sequentially along the direction of strip advance; A disc shear guide plate is movably disposed between the strip shaper roller and the guide roller, and the disc shear guide plate has a raised state that lifts up the strip head; The feed roller is movably configured to cooperate with the guide roller to press the strip steel. A belt winding aid, which cooperates with the winding machine mandrel; and A strip guide plate is movably disposed between the guide roller and the winding machine core shaft. The strip guide plate is designed to allow the strip head to be inserted into the gap formed by the belt winding aid and the winding machine core shaft. The strip head is straightened by wrapping the strip head with the belt of the belt winding aid and the winding machine core shaft.

2. The system of claim 1, wherein, The winding machine core shaft includes a belt mode, and when the winding machine core shaft is in belt mode, it ensures that the lifting height of the belt guide plate can meet the requirements for the belt head to enter the belt gap.

3. The system of claim 2, wherein, The winding machine core shaft includes a threading mode. After the belt head straightening is completed, the winding machine core shaft returns to the threading mode to facilitate subsequent threading operations.

4. The system of claim 1, wherein, The belt winding aid includes a first state and a second state. In the first state, the belt winding aid is spaced apart from the winding machine core shaft. In the second state, the belt portion of the belt winding aid is tightly attached to the winding machine core shaft and forms a gap for the belt head to be inserted.

5. The system of claim 1, wherein, One end of the disc shear guide plate is rotatably mounted on the frame, and when in the tilted state, the other end of the disc shear guide plate lifts the belt head.

6. The system of claim 1, wherein, One end of the threading guide plate is rotatably mounted on the frame. When in the working state, the other end of the threading guide plate is raised toward the gap formed by the belt winding aid and the winding machine core shaft, and the strip moves along the upper surface of the threading guide plate.

7. A method for straightening belt heads using a belt winding aid, characterized in that, The method of using the system as described in any one of claims 1-6 includes: After the disc shear on the export side completes the end-cutting operation on the strip and the strip head is bent downwards, the disc shear guide plate is raised to lift the strip head. After the strip head is lifted, the strip is advanced in the linkage mode until the strip head is delivered to the guide roller, and the feed roller is lowered to press the strip head. After the guide roller and the feeding roller cooperate to press the belt head, the belt winding aid is lowered, the belt threading guide plate is raised, and the belt feeder continues to move so that the belt head is inserted into the gap formed between the belt of the belt winding aid and the winding machine core shaft. After the belt head is inserted into the gap, the belt is fed in the linkage mode to extend the belt head into the gap a certain distance, and the belt head is straightened by the wrapping formed by the belt and the winding machine core shaft.

8. The method of claim 7, wherein, After the belt head is inserted into the gap, the belt is fed in the linkage mode so that the belt head extends into the gap by 10-15cm.

9. The method of claim 7, wherein, After the belt head is pressed by the feed roller, the disc shear guide plate is lowered.

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