Device for treating coil loosening of inner hole of steel coil

Abstract

The utility model relates to the technical field of steel coil production, and particularly discloses a device for processing steel coil inner hole coil loosening, which comprises a connecting arm and an inner ring smoothing detection device, the inner ring smoothing detection device comprises a detection assembly and a smoothing assembly, the detection assembly comprises a first sensor and a second sensor, and the smoothing assembly comprises a second sensor and a third sensor. The smoothing assembly comprises a cross shaft and a plurality of tight supporting units arranged on the periphery of the cross shaft and used for tightly supporting the inner ring of the steel coil, and the cross shaft is connected with a power device used for driving the tight supporting units to tightly support or retract. The center, the length and the coil collapse degree of the steel coil are determined through the first sensor and the second sensor, the inner ring smoothing detection device enters the inner ring of the steel coil under the driving of the robot, the power device pushes the cross shaft to move to drive the tensioning unit to open, the robot drives the inner ring smoothing detection device to rotate, and the inner ring of the steel coil is smoothed. The whole process is automatically carried out under the driving of the robot, so that the potential safety hazard of workers is reduced, and the working efficiency and the treatment effect are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel coil production, in particular to a device for processing loose coils in inner holes of steel coils. Background Art

[0002] In the production process of cold-rolled steel strip, the steel coil is unloaded from the coiler in the middle process. At this time, usually only a strapping tape is tied on the outer circumference, and there is no strapping tape or mandrel to fix the inner hole. This situation often causes the inner hole of thin steel plates (≤1mm) to collapse, which brings certain difficulties to the next process of coiling. In order to solve this problem, the current common practice is to manually handle the collapsed part of the inner hole, fix the tail of the tape with tape or clips, and then reinstall it to the coiler to enter the next process. However, manual handling of coiling is inefficient and there are certain safety risks.

[0003] Therefore, it is necessary to propose an improvement to overcome the defects of the prior art. Utility Model Content

[0004] The utility model aims to solve the problems in the prior art and provide a safe and efficient device for processing loose coils in the inner holes of steel coils.

[0005] The technical solution of the utility model is:

[0006] A device for processing loose coils in the inner hole of a steel coil, comprising: a connecting arm for connecting to a robot and an inner ring smoothing detection device arranged on the connecting arm, the inner ring smoothing detection device comprising a detection component and a smoothing component, the detection component comprising a first sensor for determining the length and degree of collapse of the steel coil, and a second sensor for determining the center of the steel coil, the smoothing component comprising a cross shaft and a plurality of tightening units arranged on the periphery of the cross shaft for tightening the inner ring of the steel coil, the cross shaft being connected with a power device for driving the tightening unit to tighten or retract, the tightening unit comprising a pull rod, a first connecting rod and a second connecting rod arranged in parallel, a connecting rod connecting plate, and a roller arranged on the connecting rod connecting plate, one end of the first connecting rod and one end of the second connecting rod are respectively hinged to the connecting rod connecting plate, the other end of the first connecting rod and the other end of the second connecting rod are respectively hinged to the cross shaft, a fixing plate is arranged outside the cross shaft, the fixing plate is fixedly connected to the connecting arm through a mounting seat sleeved outside the cross shaft, and both ends of the pull rod are respectively hinged to the connecting rod connecting plate and the fixing plate.

[0007] By setting the first sensor and the second sensor to determine the center, length, and degree of collapse of the steel coil, the robot drives the inner ring smoothing detection device to enter the inner ring of the steel coil, the power device drives the cross shaft to move and drive the tensioning unit to open, the roller presses on the surface of the inner ring of the steel coil, and the robot drives the inner ring smoothing detection device to rotate to smooth the inner ring of the steel coil. The whole process is automatically carried out under the drive of the robot, reducing the safety hazards of workers and improving work efficiency and processing effects.

[0008] Optionally, the plurality of tightening units are arranged in a circular array around the cross axis. Arranging the tightening units in a circular array around the cross axis is beneficial to improving the smoothing effect and efficiency.

[0009] Optionally, the power device is a first cylinder fixedly connected to the end of the connecting arm away from the robot, the output end of the first cylinder is fixedly connected to the cross shaft, a roller seat is fixed on the connecting rod connecting plate, and a roller is rotatably connected to the roller seat. The first cylinder drives the tensioning unit to open the collapsed coil part, and the roller presses the inner ring of the steel coil to effectively smooth the inner ring of the steel coil, and the roller is used to avoid damage to the inner ring of the steel coil.

[0010] Optionally, a guide key is provided on the cross shaft, and a second guide sleeve is connected to the cross shaft outer shell. The provision of the guide key and the second guide sleeve ensures that the cross shaft can only move along the axial direction under the push of the first cylinder, thereby ensuring the accuracy of detection and smoothing.

[0011] Optionally, a connecting sleeve is sleeved on the cross shaft, one end of the first connecting rod and one end of the second connecting rod are respectively hinged on the connecting sleeve, and an adjusting screw is provided on the connecting sleeve.

[0012] Optionally, the device for processing the loose coil of the inner hole of the steel coil further includes a third sensor for determining the position of the head of the steel coil and a spot welding device, the spot welding device is arranged on the mounting seat, and the spot welding device includes two symmetrically arranged second cylinders and two spot welding assemblies respectively connected to the output ends of the two second cylinders. The third sensor determines the position of the head of the steel coil, and the spot welding device is powered on to spot weld the head of the steel coil.

[0013] Optionally, the output ends of the two second cylinders are fixedly connected with a connecting plate, and the two spot welding assemblies are symmetrically arranged on the connecting plate.

[0014] Optionally, the spot welding assembly includes an electrode rod, an insulating part arranged between the electrode rod and a connecting plate, an electrode cap is sleeved on the top of the electrode rod, a copper nut is sleeved on the bottom of the electrode rod, a limiting ring is integrally formed on the upper part of the electrode rod, a first guide sleeve is sleeved on the middle part of the electrode rod, and a compression spring is sleeved on the outside of the electrode rod between the limiting ring and the first guide sleeve, one end of the compression spring is connected to the limiting ring, and the other end of the compression spring is connected to the first guide sleeve.

[0015] Optionally, the insulating member includes an insulating plate arranged above the connecting plate, an insulating sleeve sleeved outside the first guide sleeve, and an insulating pad arranged below the connecting plate.

[0016] Optionally, the device for processing the loose coil in the inner hole of the steel coil further includes a guide head, which is conical and arranged at the end away from the robot. By arranging the guide head, it is convenient for the steel coil smoothing mechanism to enter the inner ring of the steel coil.

[0017] The beneficial effects of the utility model are as follows:

[0018] The utility model discloses a device for processing the loose coil in the inner hole of a steel coil, which is connected to a robot through a connecting arm, and the robot provides the power for movement and rotation. First, the center, length, and degree of collapse of the steel coil are determined by the first sensor and the second sensor. Driven by the robot, the inner ring smoothing detection device enters the inner ring of the steel coil, and the power device drives the cross shaft to move and drive the tightening unit to open. The roller is pressed on the surface of the inner ring of the steel coil, and the robot drives the inner ring smoothing detection device to rotate to smooth the inner ring of the steel coil. A third sensor and a spot welding device are arranged on the inner ring smoothing detection device, and the position of the steel coil lead is determined by the third sensor, and the spot welding device realizes the welding of the lead. The whole process is automatically carried out under the drive of the robot, which can replace the workers' manual processing of the inner hole collapse, reduce the safety risks in the production process, and improve the work efficiency and processing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view of the overall structure of the device for processing loose coils in the inner hole of a steel coil according to the utility model;

[0020] Figure 2 It is a top view of the overall structure of the device for processing loose coils in the inner hole of a steel coil according to the utility model;

[0021] Figure 3 This is a front view of the overall structure of the inner ring smoothing detection device of the utility model;

[0022] Figure 4 This is a top view of the overall structure of the inner ring smoothing detection device of the utility model;

[0023] Figure 5 It is a partial cross-sectional view of the inner ring smoothing detection device of the utility model;

[0024] Figure 6 This is a top view of the spot welding device of the utility model;

[0025] Figure 7 For this utility model Figure 6 Middle AA section view.

[0026] Among them, 10, connecting arm; 20, spot welding device; 201, electrode cap; 202, electrode rod; 203, limit ring; 204, compression spring; 205, first guide sleeve; 206, connecting plate; 207, second cylinder; 208, insulating plate; 209, insulating sleeve; 210, copper nut; 211, insulating pad; 30, inner ring smoothing detection device; 301, first cylinder; 302, mounting seat; 303, cross shaft; 304, second guide sleeve; 305, fixing plate; 306, adjusting screw; 307, connecting sleeve; 308, roller; 309, roller seat; 310, first sensor; 311, second sensor; 312, first connecting rod; 313, pull rod; 314, guide key; 315, connecting rod connecting plate; 316, second connecting rod; 317, third sensor; 318, guide head. DETAILED DESCRIPTION

[0027] In order to make the technical means, technical features, utility model objectives and technical effects achieved by the utility model easy to understand, the utility model is further explained below with reference to specific illustrations.

[0028] like Figure 1-3 As shown, a device for processing loose coils in the inner hole of a steel coil of the utility model comprises a connecting arm 10, a spot welding device 20, and an inner ring smoothing detection device 30. The inner ring smoothing detection device 30 is bolted to the connecting arm 10 through a mounting seat 302, and the end of the connecting arm 10 is connected to the robot through a flange. The spot welding device 20 is arranged on the mounting seat 302 and is bolted to the inner ring smoothing detection device 30. The robot provides power for movement and rotation of the connecting arm 10, the spot welding device 20, and the inner ring smoothing detection device 30.

[0029] like Figure 3-5 As shown, the inner ring smoothing detection device 30 includes a detection component and a smoothing component. The detection component includes a first sensor 310 and a second sensor 311. When working, the robot drives the inner ring smoothing detection device 30 to move, and uses the presence or absence of a signal from the first sensor 310 to move from one end of the steel coil to the other end, calculates the length the robot has traveled, and thus determines the length of the steel coil. On the end face of the steel pipe, the second sensor 311 is used for three-point positioning to obtain the center of the steel coil. After the center and length of the steel coil are determined, the first sensor 310 detects the degree of collapse of the inner hole of the steel coil, thereby determining whether the collapse requires manual intervention.

[0030] The smoothing assembly includes a cross shaft 303 and a plurality of tightening units arranged on the periphery of the cross shaft 303 for tightening the inner ring of the steel coil, and the plurality of tightening units are arranged in a circular array around the cross shaft 303. The cross shaft 303 is connected to a power device for driving the tightening unit to tighten or retract, and the power device may be a cylinder or a hydraulic cylinder. In the present embodiment, the first cylinder 301 is preferably used. The first cylinder 301 is fixedly connected to the end of the connecting arm 10 away from the robot, and the output end of the first cylinder 301 is fixedly connected to the cross shaft 303. A guide key 314 is provided on the cross shaft 303, and a second guide sleeve 304 is connected to the outer shell of the cross shaft 303, so as to ensure that the cross shaft 303 can only move axially under the push of the first cylinder 301, thereby ensuring the accuracy of detection and smoothing. The tightening unit includes a pull rod 313, a first connecting rod 312 and a second connecting rod 316 arranged in parallel, and a connecting rod connecting plate 315. A connecting sleeve 307 is sleeved on the cross shaft 303, and an adjusting screw 306 is arranged on the connecting sleeve 307. One end of the first connecting rod 312 and the second connecting rod 316 are respectively hinged on the connecting sleeve 307, and the other end of the first connecting rod 312 and the other end of the second connecting rod 316 are respectively hinged to the connecting rod connecting plate 315. A fixing plate 305 is arranged on the outer sleeve of the cross shaft 303, and the fixing plate 305 is fixedly connected to the connecting arm 10 through a mounting seat 302 sleeved on the outside of the cross shaft 303. The two ends of the pull rod 313 are respectively hinged to the connecting rod connecting plate 315 and the fixing plate 305. A roller seat 309 is fixed on the connecting rod connecting plate 315, and a roller 308 is rotatably connected to the roller seat 309. The roller 308 is made of polyurethane to avoid damage to the inner ring of the steel coil.

[0031] A guide head 318 is provided at the end of the device for processing the loose inner ring of the steel coil away from the robot. The guide head 318 is conical. The guide head 318 facilitates the steel coil smoothing mechanism to enter the inner ring of the steel coil.

[0032] like Figure 6-7 As shown, the spot welding device 20 includes two symmetrically arranged second cylinders 207 and two spot welding assemblies. The output ends of the two second cylinders 207 are fixedly connected with a connecting plate 206, and the two spot welding assemblies are symmetrically arranged on the connecting plate 206. The steel coil inner ring smoothing welding mechanism also includes a third sensor 317 for determining the position of the steel coil head.

[0033] The spot welding assembly includes an electrode rod 202 and an insulating member arranged between the electrode rod 202 and a connecting plate 206. An electrode cap 201 is sleeved on the top of the electrode rod 202, a copper nut 210 is sleeved on the bottom of the electrode rod 202, a limit ring 203 is integrally formed on the upper part of the electrode rod 202, a first guide sleeve 205 is sleeved on the middle part of the electrode rod 202, and a compression spring 204 is sleeved between the limit ring 203 and the first guide sleeve 205 on the outside of the electrode rod 202, one end of the compression spring 204 is connected to the limit ring 203, and the other end of the compression spring 204 is connected to the first guide sleeve 205. The electrode rod 202 is connected to the transformer through a welding cable, and the intermediate frequency controller is connected to the transformer. The intermediate frequency controller can adjust the current to adapt to different steel plate thicknesses. The insulating member includes an insulating plate 208 arranged above the connecting plate 206, an insulating sleeve 209 sleeved outside the first guide sleeve 205, and an insulating pad 211 arranged below the connecting plate 206.

[0034] Working principle:

[0035] During operation, the incoming material is inspected, and the steel coil is placed at the designated position. The robot drives the inner ring smoothing detection device 30 to move. By checking whether there is a signal from the first sensor 310, the robot moves from one end to the other in the radial direction of the steel coil, and calculates the length the robot has traveled to determine the length of the steel coil. At the end face of the steel coil, the second sensor 311 is used to locate the center of the steel coil using three points. When the center and length of the steel coil are determined, the first sensor 310 can detect the degree of collapse of the inner hole of the steel coil to determine whether manual intervention is required for the collapse of the steel coil.

[0036] When the center, length, and degree of collapse of the steel coil are determined, the robot drives the inner ring smoothing detection device 30 to enter the inner ring of the steel coil. After entering the inner ring of the steel coil, the first cylinder 301 pushes the cross shaft 303 to move forward. At this time, as the cross shaft 303 moves, the first connecting rod 312, the second connecting rod 316, the pull rod 313, and the roller seat 309 will have an opening action. When the roller 308 is completely pressed on the inner ring surface of the steel coil, the robot drives the inner ring smoothing detection device 30 to start rotating to smooth the inner ring of the steel coil. At the same time, the third sensor 317 rotates to find the position of the lead. The third sensor 317 stops rotating after finding the lead position. At this time, the position of the lead falls in the middle of the electrode rod 202. The second cylinder 207 drives the electrode cap 201 and the electrode rod 202 to lift up, so that the electrode cap 201 is completely pressed on both sides of the lead. After compaction, power is turned on for spot welding. Depending on the size of the steel coil, 3 to 4 points are spot welded. After spot welding, the robot returns to its original position, and the entire inner circle smoothing and welding action is completed.

[0037] The above description is only a preferred embodiment of the utility model, and is not intended to limit the scope of implementation of the utility model. That is, all equivalent changes and modifications made according to the content of the patent application scope of the utility model should belong to the technical scope of the utility model.

Claims

1. A device for processing loose coils in inner holes of steel coils, characterized in that: include: A connecting arm (10) for connecting to a robot and an inner ring smoothing detection device (30) arranged on the connecting arm (10), the inner ring smoothing detection device (30) comprising a detection component and a smoothing component, the detection component comprising a first sensor (310) for determining the length and degree of collapse of a steel coil, and a second sensor (311) for determining the center of the steel coil, the smoothing component comprising a cross shaft (303) and a plurality of tightening units arranged on the periphery of the cross shaft (303) for tightening the inner ring of the steel coil, the cross shaft (303) being connected to a power device for driving the tightening unit to tighten or retract, the tightening unit comprising a pull rod (313), a first connecting rod (311) arranged in parallel, and a plurality of tightening units arranged on the periphery of the cross shaft (303) for tightening the inner ring of the steel coil. 12) and a second connecting rod (316), a connecting rod connecting plate (315), and a roller (308) arranged on the connecting rod connecting plate (315); one end of the first connecting rod (312) and one end of the second connecting rod (316) are respectively hinged to the connecting rod connecting plate (315); the other end of the first connecting rod (312) and the other end of the second connecting rod (316) are respectively hinged to a cross shaft (303); a fixing plate (305) is provided on the outer sleeve of the cross shaft (303); the fixing plate (305) is fixedly connected to the connecting arm (10) via a mounting seat (302) sleeved on the outside of the cross shaft (303); and two ends of the pull rod (313) are respectively hinged to the connecting rod connecting plate (315) and the fixing plate (305).

2. The device for processing loose coils in inner holes of steel coils according to claim 1, characterized in that: The plurality of tightening units are arranged in a circular array around the cross axis (303).

3. A device for processing loose coils in inner holes of steel coils according to claim 1 or 2, characterized in that: The power device is a first cylinder (301) fixedly connected to an end of the connecting arm (10) away from the robot, the output end of the first cylinder (301) is fixedly connected to the cross shaft (303), a roller seat (309) is fixed on the connecting rod connecting plate (315), and a roller (308) is rotatably connected to the roller seat (309).

4. The device for processing loose coils in inner holes of steel coils according to claim 1, characterized in that: A guide key (314) is provided on the cross shaft (303), and a second guide sleeve (304) is connected to the outer shell of the cross shaft (303).

5. The device for processing loose coils in inner holes of steel coils according to claim 1, characterized in that: A connecting sleeve (307) is sleeved on the cross shaft (303), one end of the first connecting rod (312) and one end of the second connecting rod (316) are respectively hinged on the connecting sleeve (307), and an adjusting screw (306) is provided on the connecting sleeve (307).

6. The device for processing loose coils in inner holes of steel coils according to claim 1, characterized in that: It also includes a third sensor (317) for determining the position of the steel coil head and a spot welding device (20), wherein the spot welding device (20) is arranged on the mounting seat (302), and the spot welding device (20) includes two symmetrically arranged second cylinders (207) and two spot welding assemblies respectively connected to the output ends of the two second cylinders (207).

7. The device for processing loose coils in inner holes of steel coils according to claim 6, characterized in that: The output ends of the two second cylinders (207) are fixedly connected to a connecting plate (206), and the two spot welding assemblies are symmetrically arranged on the connecting plate (206).

8. The device for processing loose coils in inner holes of steel coils according to claim 7, characterized in that: The spot welding assembly comprises an electrode rod (202), an insulating member arranged between the electrode rod (202) and a connecting plate (206), an electrode cap (201) being sleeved on the top end of the electrode rod (202), a copper nut (210) being sleeved on the bottom end of the electrode rod (202), a limiting ring (203) being integrally formed on the upper part of the electrode rod (202), a first guide sleeve (205) being sleeved on the middle part of the electrode rod (202), a compression spring (204) being sleeved on the outside of the electrode rod (202) between the limiting ring (203) and the first guide sleeve (205), one end of the compression spring (204) being connected to the limiting ring (203), and the other end of the compression spring (204) being connected to the first guide sleeve (205).

9. The device for processing loose coils in inner holes of steel coils according to claim 8, characterized in that: The insulating member comprises an insulating plate (208) arranged above the connecting plate (206), an insulating sleeve (209) sleeved outside the first guide sleeve (205), and an insulating pad (211) arranged below the connecting plate (206).

10. A device for processing loose coils in inner holes of steel coils according to claim 1, 2, 4, 5, 6, 7, 8 or 9, characterized in that: It also includes a guide head (318), which is conical and arranged at an end away from the robot.

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