A control method to avoid the vibration of the material inside the vertical looper

Abstract

The present invention discloses a control method for avoiding material type jitter in a vertical looper, comprising adjusting the distance H1 from the bottom of a crimping wheel to the inner bottom surface of a guide groove, (1 / 8*L1)≤H1≤(1 / 12*L1), L1 being the horizontal distance between the center point of a lifting roller and the center point of a crimping wheel when the lifting roller is in a horizontal state; adjusting the top of the lifting roller to be initially located below a rolling center line and the distance H2≤(1 / 2*H3) between the top and the rolling center line, H3 being the material type height, and the distance H4=(1 / 20*L2) from the center line of the material type supported by the lifting roller to the inner bottom surface of the guide groove after lifting, L2 being the horizontal distance between two rolling mills; the control method for avoiding material type jitter in a vertical looper of the present invention adjusts the distance between the lifting roller and the crimping wheel so that the material type forms a smooth arc and remains stable, and after lifting, the sleeve height is more stable.

Description

Technical Field

[0001] The invention relates to the field of rolling technology, and in particular to a control method for avoiding the vibration of a material shape inside a vertical looper. Background Art

[0002] The rebar slitting production line needs to use a vertical looper to adjust the tension between the rolling mills. During the production process, after the vertical looper is lifted, the material shape is prone to vibrate on the lifting roller. If the vibration amplitude is too large, steel pile accidents will occur. The vibration will cause serious damage to the bearings in the vertical looper body. At the same time, the vibration of the material shape also has a great impact on the product quality, and it is easy to cause uneven thickness. Summary of the invention

[0003] The purpose of the present invention is to overcome the above-mentioned shortcomings. The present invention provides a control method for avoiding the shaking of the material shape in the vertical looper. By adjusting the distance between the looper roller and the wire pressing wheel, the material shape forms a smooth arc and remains stable, so that after the looper is started, the looper material shape is more stable.

[0004] The present invention provides a control method for avoiding the jitter of the material type in a vertical looper. The vertical looper device is arranged between two rolling mills, and includes a frame, a guide groove, a wire pressing adjustment mechanism, a wire pressing wheel, a support arm, a radius adjustment mechanism, a sleeve roller, a height adjustment mechanism and a hydraulic cylinder arranged in sequence. The guide groove is installed on the frame; the wire pressing wheel is installed directly above the guide groove through the wire pressing adjustment mechanism, the base of the hydraulic cylinder is installed on the frame through the height adjustment mechanism, the output end of the hydraulic cylinder is rotatably connected to one end of the support arm, and the position of the support arm away from the end is installed on the frame through the radius adjustment mechanism; the sleeve roller is rotatably installed on the other end of the support arm and is located directly above or directly below the guide groove; the control method includes the following steps Step: height adjustment step of the creasing wheel, through the creasing adjustment mechanism, adjust the distance H1 from the bottom of the creasing wheel to the bottom surface of the guide groove, (1 / 8*L1)≤H1≤(1 / 12*L1), L1 is the horizontal distance between the center point of the creasing roller and the center point of the creasing wheel when the creasing roller is in a horizontal state; height adjustment step of the creasing roller, adjust the height of the hydraulic cylinder base through the height adjustment mechanism, and adjust the creasing radius through the radius adjustment mechanism, so that the top of the creasing roller is initially located on the lower side of the rolling center line and the distance H2 between the top and the rolling center line is ≤(1 / 2*H3), H3 is the material height, and after creasing, the distance H4=(1 / 20*L2) from the center line of the material supported by the creasing roller to the bottom surface of the guide groove, L2 is the horizontal distance between the two rolling mills.

[0005] Furthermore, the wire pressing adjustment mechanism includes a wire pressing stud rotatably mounted on the frame, a wire pressing nut threadedly connected to the wire pressing stud, and a wire pressing connecting plate fixedly connected to the wire pressing nut. The wire pressing wheel is rotatably mounted on the wire pressing connecting plate and is located directly above the guide groove.

[0006] Furthermore, the height adjustment mechanism includes a height stud rotatably mounted on the frame, a height nut threadedly connected to the height stud, and a height connecting plate fixedly connected to the height nut, and the base of the hydraulic cylinder is rotatably mounted on the height connecting plate.

[0007] Furthermore, the radius adjustment mechanism includes a sleeve rotating shaft, an adjustment plate, a first waist-shaped hole, a threaded hole, and a fastening bolt. One end of the sleeve rotating shaft is rotatably mounted on the frame, and the adjustment plate is fixedly sleeved on the other end of the sleeve rotating shaft. The first waist-shaped hole is formed on the adjustment plate, and the threaded hole is formed on the support arm. The fastening bolt is slidably matched with the first waist-shaped hole, and the threaded end of the fastening bolt passes through the first waist-shaped hole and locks the adjustment plate on the support arm by threadedly matching with the threaded hole.

[0008] Furthermore, the vertical looper device further comprises a guide groove adjusting mechanism, and the guide groove is installed on the frame through the guide groove adjusting mechanism. The control method further comprises the following steps:

[0009] The guide groove height adjustment step is to adjust the guide groove adjustment mechanism so that the inner bottom surface of the guide groove is lower than the rolling center line, and the distance L3 between the inner bottom surface of the guide groove and the rolling center line is ≤ (1 / 2*H3).

[0010] Furthermore, the guide groove adjustment mechanism comprises a guide groove stud rotatably mounted on the frame, a guide groove nut sleeve threadedly connected to the guide groove stud, and the lower side of the guide groove is fixedly mounted on the guide groove nut sleeve.

[0011] Furthermore, the vertical looping device also includes a scanner installed on the frame, and the scanner is used to detect whether there is a material at the starting position. The control method also includes the following steps: a starting time adjustment step, adjusting the time S from the scanner detecting the steel signal to starting the looping, S=L4 / V+E, L4 is the horizontal distance from the starting position to the entrance of the next rolling mill, V is the material forward speed, and E is the delay preset value.

[0012] Furthermore, it also includes: an oil pressure adjustment step, controlling the oil pressure range of the hydraulic cylinder to be 0.3MPa-0.5Mpa.

[0013] Furthermore, the method includes the following steps: adjusting the distance H5 between the inner bottom surface of the guide groove and the rolling center line, 15mm≤H5≤20mm; adjusting the distance H1 from the bottom of the pressing wheel to the inner bottom surface of the guide groove, 90mm≤H1≤130mm; adjusting the time S from the time when the scanner detects the steel signal to the time of starting the sleeve, 60ms≤S≤100ms; setting the distance L2 between the two rolling mills to 5m, adjusting the starting height of the sleeve roller, so that before starting the sleeve, the distance H2 between the top of the sleeve roller and the rolling center line is 10mm-15mm, and after starting the sleeve, the distance H6 from the bottom of the sleeve roller to the inner bottom surface of the guide groove is 80mm-100mm, and the sleeve radius R is 470mm~480mm; controlling the oil pressure of the hydraulic cylinder to be 0.3MPa-0.5Mpa.

[0014] Furthermore, a long and longitudinal scanning hole is opened on the frame, the horizontal distance L5 from the center of the scanning hole to the center of the sleeve-lifting roller after sleeve-lifting is 250mm-300mm, the distance H7 from the bottom semicircle of the scanning hole to the bottom surface of the guide groove is 400mm, and the center distance H8 between the top semicircle and the bottom semicircle of the scanning hole is 150mm-190mm.

[0015] The beneficial effects of the present invention are: a control method for avoiding the jitter of the material shape in the vertical looper of the present invention adjusts the distance between the looping roller and the pressing wheel so that the material shape forms a smooth arc and remains stable; sets the looping delay to ensure that the head of the incoming material is bitten by the next rolling mill before the looping is carried out, so as to ensure that the tension is easily eliminated; adjusts the position of the scanning hole to improve the stability of the detection signal; adjusts the distance between the bottom of the vertical looper and the rolling center line to avoid the friction between the material shape and the bottom plate to generate high temperature affecting the detection signal; adjusts the height of the pressing wheel to improve the stability of the material shape; changes the looping radius of the looping roller to reduce the fluctuation effect of the oil pressure fluctuation on the looping stability, so that after the looping, the looping material shape is more stable, the material shape is stable, the occurrence of quality problems is reduced, the material shape is more uniform, the occurrence of failure problems is reduced, the production efficiency is improved, and the labor intensity is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural principle diagram of the embodiment of the present invention when the neutral looper device is in an initial state;

[0017] Figure 2 It is a structural principle diagram of the embodiment of the present invention when the free looping device is in the looping state;

[0018] Figure 3 is a rear view of the radius adjustment mechanism in an embodiment of the present invention with the adjustment plate hidden;

[0019] Figure 4 2 is a rear view of the radius adjustment mechanism in the embodiment of the present invention.

[0020] Figure 5It is a schematic diagram of the material type after the sleeve is removed in the prior art.

[0021] Figure 6 It is a schematic diagram of the material shape after the sleeve is removed according to the control method for avoiding the vibration of the material shape in the vertical loop in an embodiment of the present invention.

[0022] In the figure, 1 is a frame, 2 is a guide groove stud, 3 is a guide groove screw sleeve, 4 is a guide groove, 5 is a wire pressing stud, 6 is a wire pressing nut, 7 is a wire pressing connecting plate, 8 is a wire pressing wheel, 9 is a support arm, 10 is a radius adjustment mechanism, 11 is a sleeve rotating shaft, 12 is an adjustment plate, 13 is a first waist-shaped hole, 14 is a second waist-shaped hole, 15 is a threaded hole, 16 is a fastening bolt, 17 is a sleeve roller, 18 is a height stud, 19 is a height nut, 20 is a height connecting plate, 21 is a hydraulic cylinder, 22 is a scanning through hole, 23 is a rolling center line, and 24 is a material center line. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Figure 1 It is a structural principle diagram of the embodiment of the present invention when the neutral looper device is in an initial state; Figure 2 1 is a schematic diagram of the structure of the embodiment of the present invention when the looping device is in the looping state. Figure 1 and Figure 2 As shown, the vertical looper device in this embodiment is arranged between two rolling mills, and includes a frame 1, a guide groove adjustment mechanism, a guide groove 4, a wire pressing adjustment mechanism, a wire pressing wheel 8, a support arm 9, a radius adjustment mechanism 10, a lifting roller 17, a height adjustment mechanism, a hydraulic cylinder 21 and a scanner arranged in sequence.

[0025] The guide groove 4 is mounted on the frame 1 through a guide groove adjustment mechanism. The guide groove adjustment mechanism comprises a guide groove stud 2 rotatably mounted on the frame 1, a guide groove nut 3 threadedly connected to the guide groove stud 2, and the lower side of the guide groove 4 is fixedly mounted on the guide groove nut 3.

[0026] The crimping wheel 8 is installed directly above the guide groove 4 through a crimping adjustment mechanism. The crimping adjustment mechanism includes a crimping stud 5 rotatably installed on the frame 1, a crimping nut 6 threadedly connected to the crimping stud 5, and a crimping connecting plate 7 fixedly connected to the crimping nut 6. The crimping wheel 8 is rotatably installed on the crimping connecting plate 7 and is located directly above the guide groove 4.

[0027] The base of the hydraulic cylinder 21 is mounted on the frame 1 through a height adjustment mechanism. The height adjustment mechanism includes a height stud 18 rotatably mounted on the frame 1, a height nut 19 threadedly connected to the height stud 18, and a height connecting plate 20 fixedly connected to the height nut 19. The base of the hydraulic cylinder 21 is rotatably mounted on the height connecting plate 20.

[0028] The output end of the hydraulic cylinder 21 is rotatably connected to one end of the supporting arm 9 .

[0029] Figure 3 is a rear view of the radius adjustment mechanism 10 hiding the adjustment plate 12 in the embodiment of the present invention; Figure 4 1 is a rear view of the radius adjustment mechanism 10 in the embodiment of the present invention.

[0030] like Figure 3 and Figure 4 As shown, the position of the support arm 9 away from the end is installed on the frame 1 through a radius adjustment mechanism 10. The radius adjustment mechanism 10 includes a sleeve shaft 11, an adjustment plate 12, four first waist-shaped holes 13, a second waist-shaped hole 14, four threaded holes 15 and four fastening bolts 16. One end of the sleeve shaft 11 is rotatably mounted on the frame 1, the adjustment plate 12 is fixedly sleeved on the other end of the sleeve shaft 11, and four through first waist-shaped holes 13 are respectively formed on the adjustment plate 12, and the length directions of the four first waist-shaped holes 13 are parallel. The second waist-shaped hole 14 is formed on the support arm 9 and slidably matches with the other end of the sleeve shaft 11, and the length direction of the second waist-shaped hole 14 is parallel to the length direction of the first waist-shaped hole 13. Four threaded holes 15 are formed on the support arm 9 and correspond to the four first waist-shaped holes 13 one by one. The four fastening bolts 16 are slidably matched with the four first waist-shaped holes 13 respectively. The threaded end of each fastening bolt 16 passes through the corresponding first waist-shaped hole 13 and locks the adjustment plate 12 on the support arm 9 by threaded cooperation with the corresponding threaded hole 15. The radius adjustment mechanism 10 only fine-tunes the sleeve radius, and also fine-tunes the sleeve height. The center distance between the two ends of the first waist-shaped hole 13 is 10mm. That is, the difference between the maximum sleeve radius and the minimum sleeve radius adjusted is 10mm. Of course, in other embodiments, the sleeve radius can also be adjusted by replacing the sleeve roller 17 with different diameters. By loosening the fastening bolts 16, the support arm 9 can be moved along the length direction of the first waist-shaped hole 13. By tightening the fastening bolts 16, the support arm 9 and the adjustment plate 12 can be fixed together.

[0031] The sleeve-lifting roller 17 is rotatably mounted on the other end of the supporting arm 9 and is located just above or just below the guide groove 4. The guide groove 4 is provided with an opening for allowing the sleeve-lifting roller 17 to enter and exit.

[0032] The scanner is fixedly mounted on the frame 1 and is used to detect whether there are materials at the starting position.

[0033] The control method for avoiding the vibration of the material type in the vertical looper in this embodiment includes the following steps:

[0034] The guide groove height adjustment step is to adjust the guide groove adjustment mechanism, that is, to rotate the guide groove nut so that the inner bottom surface of the guide groove 4 is lower than the rolling center line 23, and the distance L3 between the inner bottom surface of the guide groove 4 and the rolling center line 23 is ≤ (1 / 2*H3), where H3 is the material height. Preferably, L3= (1 / 2*H3)

[0035] The height adjustment step of the crimping wheel 8 is to adjust the distance H1 from the bottom of the crimping wheel 8 to the inner bottom surface of the guide groove 4 through the crimping adjustment mechanism, that is, rotating the crimping nut 6, (1 / 8*L1)≤H1≤(1 / 12*L1), L1 is the horizontal distance between the center point of the sleeve roller 17 and the center point of the crimping wheel 8 when the sleeve roller 17 is in a horizontal state. Preferably, H1=1 / 10*L1. After multiple experimental measurements, the iron sticking condition of the crimping wheel 8 is effectively improved when H1 is (1 / 8*L1)~(1 / 12*L1). In specific operations, the height of the crimping wheel 8 can be finely adjusted through the crimping adjustment mechanism.

[0036] The step of adjusting the height of the lifting roller 17 is to adjust the height of the base of the hydraulic cylinder 21 through the height adjustment mechanism, and adjust the lifting radius through the radius adjustment mechanism 10, so that the top of the lifting roller 17 is initially located below the rolling center line 23 and the distance H2 between the top and the rolling center line 23 is ≤ (1 / 2*H3), and the distance H4 from the center line 24 of the material supported by the lifting roller 17 to the bottom surface of the guide groove 4 after lifting is equal to (1 / 20*L2), where L2 is the horizontal distance between the two rolling mills. Among them, the lifting radius is the distance from the center of the lifting roller 17 to the center of the lifting shaft 11.

[0037] The step of adjusting the start-up time is to adjust the time S from when the scanner detects the steel signal to when the set-up is started. S=L4 / V+E, where L4 is the horizontal distance from the start-up position to the entrance of the next rolling mill, V is the material forward speed, and E is the delay preset value. E=10ms.

[0038] The oil pressure adjustment step controls the oil pressure range of the hydraulic cylinder 21 to be 0.3MPa-0.5MPa. Controlling the oil pressure reduces the fluctuation effect of oil pressure fluctuation on the stability of the set, so that the set height is more stable after the set is set.

[0039] According to an embodiment of the present invention, according to the heights of multiple specification materials, the intersection range of the above dimensions is obtained, and the control method includes the following steps:

[0040] Adjust the spacing H5 between the inner bottom surface of the guide groove 4 and the rolling center line 23, 15mm≤H5≤20mm; adjust the distance H1 from the bottom of the crimping wheel 8 to the inner bottom surface of the guide groove 4, 90mm≤H1≤130mm; adjust the time S from the time the scanner detects the steel signal to the start of the sleeve, 60ms≤S≤100ms; set the spacing L2 between the two rolling mills to 5m, adjust the sleeve height of the sleeve roller 17, so that before the sleeve is started, the distance H2 between the top of the sleeve roller 17 and the rolling center line 23 is 10mm-15mm, and after the sleeve is started, the distance H6 from the bottom of the sleeve roller 17 to the inner bottom surface of the guide groove 4 is 80mm-100mm, and the sleeve radius R is 470mm~480mm. After the sleeve is started, the distance H4=250mm from the center line 24 of the material supported by the sleeve roller 17 to the inner bottom surface of the guide groove 4; control the oil pressure of the hydraulic cylinder 21 to be 0.3MPa-0.5Mpa.

[0041] Furthermore, the scanning hole position is fixed according to the above-mentioned sleeve height and sleeve radius dimensions. A long and longitudinal scanning through hole 22 is provided on the frame 1, and the horizontal distance L5 from the center of the scanning through hole 22 to the center of the sleeve roller 17 after sleeve is lifted is 250mm-300mm, the distance H7 from the bottom semicircle of the scanning through hole 22 to the inner bottom surface of the guide groove 4 is 400mm, and the center distance H8 between the top semicircle and the bottom semicircle of the scanning through hole 22 is 150mm-190mm. By fixing the position of the scanning hole, the stability of the detection signal is improved. By solidifying the parameters at each position, the sleeve material type is more stable, the material type is stable, the occurrence of quality problems is reduced, the material type is more uniform, the occurrence of fault problems is reduced, the production efficiency is improved, and the labor intensity is reduced.

[0042] The applicable range of material specifications is: material height is between 20-40mm.

[0043] In this embodiment, by adjusting the distance L3≤(1 / 2*H3) between the inner bottom surface of the guide groove 4 and the rolling center line 23, it is ensured that the material center line 24 and the rolling center line 23 coincide when not sleeved, so as to achieve smooth routing and avoid the high temperature generated by the friction between the material and the bottom plate affecting the detection signal.

[0044] Set the delay time for starting the sleeve to ensure that the head of the incoming material is bitten by the next rolling mill before starting the sleeve, so as to ensure that the tension is easily eliminated.

[0045] By adjusting the distance H1 from the bottom of the crimping wheel 8 to the inner bottom surface of the guide groove 4, it is ensured that the crimping wheel 8 does not stick to the iron after the sleeve is lifted. By adjusting the top of the sleeve lifting roller 17 to be located below the rolling center line 23 at the beginning and the distance H2≤(1 / 2*H3) between the top and the rolling center line 23, it is prevented that the sleeve lifting roller 17 is too high and blocks the end of the material when the sleeve is not lifted. By adjusting the distance H4=(1 / 20*L2) from the center line 24 of the material supported by the sleeve lifting roller 17 to the inner bottom surface of the guide groove 4 after the sleeve is lifted, the tension of the material can be eliminated on the one hand, and on the other hand, the sleeve will not be lifted too high to cause a steel pile accident.

[0046] like Figure 6 The figure shows the material flow after adjusting the height of the crimping wheel 8 to H1=1 / 10*L1 and the starting height to H4=(1 / 20*L2). Figure 5 The figure shows the lifting of the vertical live loop in the prior art. When the height H1 of the crimping wheel 8 is not between (1 / 8*L1) and (1 / 12*L1) and the lifting height H4 is less than (1 / 20*L2), the material will shake significantly when lifting. After many experiments, it was found that when H1=1 / 10*L1 and H4=(1 / 20*L2), the material can maintain a stable and smooth state.

[0047] By adjusting the distance and height between the sleeve roller 17 and the crimping wheel 8, the material shape can form a smooth arc and remain stable.

[0048] The above is only one specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A control method for avoiding the vibration of the material inside the vertical looper, characterized in that: The vertical looper device is arranged between two rolling mills, and includes a frame, a guide groove, a wire pressing adjustment mechanism, a wire pressing wheel, a support arm, a radius adjustment mechanism, a sleeve roller, a height adjustment mechanism and a hydraulic cylinder arranged in sequence, wherein the guide groove is installed on the frame; the wire pressing wheel is installed directly above the guide groove through the wire pressing adjustment mechanism; the base of the hydraulic cylinder is installed on the frame through the height adjustment mechanism; the output end of the hydraulic cylinder is rotatably connected to one end of the support arm, and the position of the support arm away from the end is installed on the frame through the radius adjustment mechanism; the sleeve roller is rotatably installed on the other end of the support arm and is located directly above or directly below the guide groove; The control method comprises the following steps: A creasing wheel height adjustment step, wherein the distance H1 from the bottom of the creasing wheel to the bottom surface of the guide groove is adjusted by a creasing adjustment mechanism, (1 / 8*L1)≤H1≤(1 / 12*L1), wherein L1 is the horizontal distance between the center point of the starting roller and the center point of the creasing wheel when the starting roller is in a horizontal state; The step of adjusting the height of the lifting roller is to adjust the height of the hydraulic cylinder base by the height adjustment mechanism, and adjust the lifting radius by the radius adjustment mechanism, so that the top of the lifting roller is initially located below the rolling center line and the distance between the top and the rolling center line is H2≤(1 / 2*H3), H3 is the material height, and after lifting, the distance from the center line of the material supported by the lifting roller to the bottom surface of the guide groove is H4=(1 / 20*L2), and L2 is the horizontal distance between the two rolling mills.

2. A control method for avoiding material type vibration in a vertical looper according to claim 1, characterized in that: The wire pressing adjustment mechanism includes a wire pressing stud rotatably mounted on the frame, a wire pressing nut threadedly connected to the wire pressing stud, and a wire pressing connecting plate fixedly connected to the wire pressing nut. The wire pressing wheel is rotatably mounted on the wire pressing connecting plate and is located directly above the guide groove.

3. A control method for avoiding material type vibration in a vertical looper according to claim 1, characterized in that: The height adjustment mechanism includes a height stud rotatably mounted on the frame, a height nut threadedly connected to the height stud, and a height connecting plate fixedly connected to the height nut, and the base of the hydraulic cylinder is rotatably mounted on the height connecting plate.

4. A control method for avoiding material type vibration in a vertical looper according to claim 1, characterized in that: The radius adjustment mechanism includes a sleeve rotating shaft, an adjustment plate, a first waist-shaped hole, a threaded hole, and a fastening bolt. One end of the sleeve rotating shaft is rotatably mounted on the frame, and the adjustment plate is fixedly sleeved on the other end of the sleeve rotating shaft. The first waist-shaped hole is formed on the adjustment plate, and the threaded hole is formed on the support arm. The fastening bolt is slidably matched with the first waist-shaped hole, and the threaded end of the fastening bolt passes through the first waist-shaped hole and locks the adjustment plate on the support arm by threadedly matching with the threaded hole.

5. A control method for avoiding the vibration of the material type in the vertical looper according to claim 1, characterized in that: The vertical looper device further includes a guide groove adjusting mechanism, and the guide groove is installed on the frame through the guide groove adjusting mechanism. The control method further includes the following steps: The guide groove height adjustment step is to adjust the guide groove adjustment mechanism so that the inner bottom surface of the guide groove is lower than the rolling center line, and the distance L3 between the inner bottom surface of the guide groove and the rolling center line is ≤ (1 / 2*H3).

6. A control method for avoiding the vibration of the material type in the vertical looper according to claim 5, characterized in that: The guide groove adjustment mechanism comprises a guide groove stud rotatably mounted on the frame, and a guide groove screw sleeve threadedly connected to the guide groove stud, and the lower side of the guide groove is fixedly mounted on the guide groove screw sleeve.

7. A control method for avoiding material type vibration in a vertical looper according to claim 1, characterized in that: The vertical looping device further includes a scanner mounted on the frame, and the scanner is used to detect whether there is a material piece at the looping position. The control method further includes the following steps: The step of adjusting the start-up time is to adjust the time S from when the scanner detects a steel signal to when the set-up is started, where S=L4 / V+E, where L4 is the horizontal distance from the start-up position to the entrance of the next rolling mill, V is the material forward speed, and E is the delay preset value.

8. A control method for avoiding material type vibration in a vertical looper according to claim 1, characterized in that: Also includes: The oil pressure adjustment step controls the oil pressure range of the hydraulic cylinder to be 0.3MPa-0.5Mpa.

9. A control method for avoiding the vibration of the material type in the vertical looper according to claim 7, characterized in that: The following steps are involved: Adjust the distance H5 between the inner bottom surface of the guide groove and the rolling center line, 15mm≤H5≤20mm; adjust the distance H1 from the bottom of the crimping wheel to the inner bottom surface of the guide groove, 90mm≤H1≤130mm; adjust the time S from the time the scanner detects the steel signal to the time of starting the sleeve, 60ms≤S≤100ms; set the distance L2 between the two rolling mills to 5m, adjust the sleeve starting height of the sleeve starting roller, so that before starting the sleeve, the distance H2 from the top of the sleeve starting roller to the rolling center line is 10mm-15mm, and after starting the sleeve, the distance H6 from the bottom of the sleeve starting roller to the inner bottom surface of the guide groove is 80mm-100mm, and the sleeve starting radius R is 470mm~480mm; control the oil pressure of the hydraulic cylinder to 0.3MPa-0.5Mpa.

10. A control method for avoiding material type vibration in a vertical looper according to any one of claim 9, characterized in that: A long and longitudinal scanning hole is provided on the frame, and a horizontal distance L5 from the center of the scanning hole to the center of the sleeve-lifting roller after sleeve-lifting is 250mm-300mm, a distance H7 from the bottom semicircle of the scanning hole to the bottom surface of the guide groove is 400mm, and a center distance H8 between the top semicircle and the bottom semicircle of the scanning hole is 150mm-190mm.

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