Bundling device and method for controlling collapse of inner ring of cover annealing steel coil

Abstract

The invention relates to the technical field of cover annealing production of hot-rolled stainless steel coils, and discloses a strapping device and method for controlling loosening of inner rings of cover annealing steel coils, the strapping device comprises two bearing tables, a semi-automatic strapping machine and a strapping conveying mechanism, the two bearing tables are oppositely arranged, and supporting rotating rollers are rotationally arranged on the top surfaces of the bearing tables; the semi-automatic bundling machine is located between the two bearing tables, the bundling direction of the semi-automatic bundling machine faces the axial direction of the steel coil, the bundling belt conveying mechanism comprises a conveying line and a clamping mechanism, one end of the conveying line extends to the line feeding end of the semi-automatic bundling machine, and the other end of the conveying line penetrates through the inner ring of the steel coil and extends to the bundling end of the semi-automatic bundling machine. The clamping mechanism is installed on the conveying line in a sliding mode and used for clamping a binding belt at the wire feeding end of the semi-automatic bundling machine and driving the binding belt to bypass the inner ring of the steel coil to be conveyed to the bundling end of the semi-automatic bundling machine, a plurality of binding belts are formed on the steel coil to complete effective fixing of the inner ring belt head of the steel coil, and the inner ring belt head is prevented and controlled to loosen and collapse.

Description

Technical Field

[0001] The invention relates to the technical field of hood-type annealing production of hot-rolled stainless steel coils, and in particular to a strapping device and method for controlling the loosening and collapse of the inner ring of a hood-type annealing steel coil. Background Art

[0002] In the production process of the hood annealing furnace for hot-rolled stainless steel coils, the inner ring of the steel coil is affected by thermal expansion and contraction and changes in organizational properties, causing the head to expand and contract or even bend and deform to become loose. Severe looseness can cause the tongue-shaped expansion head of the double-sided automatic coil clamp to be unable to extend into the inner ring of the steel coil, making it impossible to directly lift the steel coil off the hearth of the hood annealing furnace. Additional processing is required, which has a significant impact on production. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide a strapping device and method for controlling the loosening and collapse of the inner ring of a hood-type annealing steel coil, so as to solve the deficiencies of the prior art.

[0004] The objective of the present invention is achieved through the following technical solutions: a strapping device for controlling the inner ring of a hood-type annealed steel coil to be loose and collapsed, comprising a bearing platform, a semi-automatic strapping machine and a strapping conveying mechanism, wherein two bearing platforms are arranged opposite to each other, a supporting rotating roller is rotatably arranged on the top surface of the bearing platform, a supporting space for the steel coil is formed between the supporting rotating rollers of the two bearing platforms, the semi-automatic strapping machine is located between the two bearing platforms, the strapping direction of the semi-automatic strapping machine is toward the axial direction of the steel coil, the semi-automatic strapping machine is installed on the second lifting platform, and is used to make the top surface of the semi-automatic strapping machine contact the steel coil. The bottom surface of the roll, the strap conveying mechanism is located on one side of the semi-automatic baler, the strap conveying mechanism includes a conveying line and a clamping mechanism, one end of the conveying line extends to the wire feeding end of the semi-automatic baler, the other end of the conveying line passes through the inner ring of the steel coil and extends to the baling end of the semi-automatic baler, the clamping mechanism is slidably installed on the conveying line, the clamping mechanism moves along the trajectory line of the conveying line, the clamping mechanism is used to clamp the strap at the wire feeding end of the semi-automatic baler, and drive the strap to bypass the inner ring of the steel coil and be conveyed to the baling end of the semi-automatic baler.

[0005] Furthermore, a plurality of pulleys are arranged on the conveyor line to rotate in sequence along the direction of its own track, the plurality of pulleys are connected by a conveyor belt transmission, and the clamping mechanism is installed on the outer ring wall of the conveyor belt.

[0006] Furthermore, the conveyor line includes a semicircular ring frame, an upper track and a lower track, the axis of the semicircular ring frame is horizontally arranged and perpendicular to the axis of the steel coil, both ends of the opening of the semicircular ring frame are provided with plug-in grooves, one end of the upper track and one end of the lower track are fixed with plug-in blocks, the plug-in blocks are adapted in the plug-in grooves, the upper track is located above the lower track, the upper track and the lower track are connected to the semicircular ring frame by screws, and the tail of the screw is inserted into the plug-in groove and threadedly connected to the plug-in block.

[0007] Furthermore, the strap conveying mechanism includes a first lifting platform, which is provided with a screw groove axially toward the supporting rotating roller, a screw is rotatably arranged in the screw groove, a screw slider is threadedly mounted on the screw, the screw slider is slidably adapted to the screw groove, the bottom of the semicircular ring frame is fixed to the top of the screw slider, and a screw motor is arranged on one side of the first lifting platform, and the output shaft of the motor is transmission-connected to the screw.

[0008] Furthermore, the clamping mechanism includes a horizontal push rod, a clamping block and a clamping plate. The cylinder body of the horizontal push rod is installed on the conveyor belt. The telescopic shaft of the horizontal push rod is connected to the clamping block. Two clamping plates are arranged above and below one end of the clamping block close to the semi-automatic baler. The clamping plate moves in the vertical direction, and the moving directions of the two clamping plates are opposite.

[0009] Furthermore, a driving cavity is provided in the clamping block, and a first spur tooth and a second spur tooth are relatively arranged in the driving cavity along the extension and retraction direction of the horizontal push rod, the first spur tooth and the second spur tooth are respectively connected to the two clamping plates, a gear is provided between the first spur tooth and the second spur tooth, the gear is rotatably connected to the clamping block, the first spur tooth and the second spur tooth are both meshed with the gear, an electromagnet is provided in the driving cavity, a permanent magnet is fixed on the first spur tooth, the permanent magnet and the electromagnet are relatively arranged, the electromagnet generates a magnetic pole with a different magnetic property from the permanent magnet when energized, the permanent magnet is connected to a reset spring, and the end of the reset spring away from the permanent magnet is connected to the clamping block.

[0010] Furthermore, a wire feeding mechanism is installed on the side wall of the wire feeding end of the semi-automatic baler, and the wire feeding mechanism comprises a horizontal mounting plate, a fixed vertical plate and a movable vertical plate, the horizontal mounting plate is fixedly connected to the semi-automatic baler, the horizontal mounting plate is provided with the fixed vertical plate and the movable vertical plate at intervals along the axial direction of the supporting rotating roller, the movable vertical plate has the freedom to move along the axial direction of the supporting rotating roller, the shape of the fixed vertical plate and the shape of the movable vertical plate are both U-shaped, and a wire clamping mechanism is provided in the U-shaped opening of the fixed vertical plate and the U-shaped opening of the movable vertical plate, the wire clamping mechanism comprises a fixed roller and a lifting roller, and the lifting roller moves along the height direction of the fixed vertical plate.

[0011] Furthermore, the lifting roller is located directly below the fixed roller, the wire clamping mechanism also includes a lifting cylinder, the telescopic shaft of the lifting cylinder is connected to the lifting roller, a linear drive module is arranged on the horizontal mounting plate, and the movable vertical plate is installed on the slide seat of the linear drive module.

[0012] Furthermore, a limiting mechanism is arranged on the top of the supporting platform, and the limiting mechanism includes a front limiting plate and a rear limiting plate. A limiting groove is provided on the top surface of the supporting platform along the axial direction of the supporting rotating roller. A bidirectional threaded screw is rotatably arranged in the limiting groove, and two thread segments of the bidirectional threaded screw with opposite thread rotation directions are threadedly fitted with limiting sliders. The front limiting plate and the rear limiting plate are respectively installed on the two limiting sliders. A motor is installed on the supporting platform, and the output shaft of the motor is transmission-connected to the bidirectional threaded screw. Multiple groups of limiting rollers are rotatably arranged on the opposite end surfaces of the front limiting plate and the rear limiting plate, and the limiting rollers of the front limiting plate and the rear limiting plate are respectively in contact with the two ends of the axial direction of the steel coil.

[0013] A method for controlling the inner ring of a steel coil being unwound from a cover to be loosened and collapsed, using the above-mentioned strapping device to strap the steel coil, comprising the following steps:

[0014] S1. Lift and place the steel coil on two bearing platforms, with the steel coil located in the supporting space, so that the supporting rotating roller contacts the supporting steel coil, and the axial direction of the steel coil is parallel to the axial direction of the supporting rotating roller;

[0015] S2. adjusting the height of the semi-automatic baler by means of the second lifting platform so that the top surface of the semi-automatic baler contacts the bottom surface of the steel coil;

[0016] S3, the clamping mechanism clamps the strapping tape sent out from the wire feeding end of the semi-automatic strapping machine, and the clamping mechanism passes around the inner ring of the steel coil along the track direction of the conveyor line to convey the strapping tape to the strapping end of the semi-automatic strapping machine, so that the strapping tape can be automatically wound around the steel coil. The operator stands at the strapping end of the semi-automatic strapping machine, and the operator takes the strapping tape sent from the conveyor line and cooperates with the semi-automatic strapping machine to perform strapping operations;

[0017] S4, the supporting rotating roller rotates to drive the steel coil to rotate, changing the bundling position of the steel coil.

[0018] S5. Tie three straps on the inner ring of the steel coil in sequence. The first strap is 100-150mm away from the inner ring of the steel coil, and the distance between two adjacent straps is 100-200mm.

[0019] S6. Tie a fourth strap on the inner ring of the steel coil, the fourth strap being arranged opposite to the first strap;

[0020] S7. Finally, the steel coil with strapping is sent to the bell-type furnace for annealing.

[0021] The beneficial effects of the present invention are:

[0022] The steel coils are grabbed and placed on the supporting platform, and the steel coils are bundled by a semi-automatic baler. Since the size of the semi-automatic baler is smaller than that of the steel coils, one end of the strapping is conveyed from the inner ring of the steel coil to the bundling end of the semi-automatic baler through the strapping conveying mechanism. The operator starts the semi-automatic baler to bundle the steel coils. Then, the supporting rotating roller drives the steel coils to rotate, adjusts the bundling position of the steel coils, and completes multiple bundling operations of the steel coils. By forming multiple straps on the steel coils, the inner ring belt head of the steel coil is effectively fixed, which prevents and controls the loosening of the inner ring belt head and eliminates the adverse effects caused by the loosening of the inner ring of the steel coil in the hood annealing production. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a strapping device for controlling the inner ring of a hood-type annealing steel coil to loosen and collapse according to the present invention;

[0024] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0025] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0026] Figure 4 It is a schematic diagram of the internal structure of a clamping block in a strapping device for controlling the loosening and collapse of the inner ring of a hood-type annealing steel coil according to the present invention;

[0027] Figure 5 A side view of a strapping device for controlling the inner ring of a hood-type annealed steel coil to loosen and collapse according to the present invention;

[0028] Figure 6 It is a schematic diagram of the strapping of the steel coil of the present invention;

[0029] In the figure, 1-carrying platform, 2-semi-automatic baling machine, 3-support rotating roller, 4-conveying line, 5-semicircular ring frame, 6-upper track, 7-lower track, 8-pulley, 9-conveying belt, 10-first lifting platform, 11-screw groove, 12-screw, 13-screw slider, 14-motor, 15-horizontal push rod, 16-clamping block, 17-clamping plate, 18-driving chamber, 19-first straight tooth, 20-second straight tooth, 21 - gear, 22- electromagnet, 23- permanent magnet, 24- return spring, 25- second lifting platform, 26- horizontal mounting plate, 27- fixed vertical plate, 28- movable vertical plate, 29- fixed roller, 30- lifting roller, 31- lifting cylinder, 32- linear drive module, 33- front limit plate, 34- rear limit plate, 35- limit groove, 36- bidirectional threaded screw, 37- limit slider, 38- motor, 39- limit roller. DETAILED DESCRIPTION

[0030] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following.

[0031] Embodiment 1

[0032] like Figures 1 to 6As shown, a strapping device for controlling the inner ring of a hood-type annealed steel coil to be loosened and collapsed comprises a bearing platform 1, a semi-automatic strapping machine 2 and a strapping conveying mechanism, wherein the two bearing platforms 1 are arranged opposite to each other, and a supporting rotating roller 3 is rotatably arranged on the top surface of the bearing platform 1, and a supporting space for the steel coil is formed between the supporting rotating rollers 3 of the two bearing platforms 1, the semi-automatic strapping machine 2 is located between the two bearing platforms 1, and the strapping direction of the semi-automatic strapping machine 2 is toward the axial direction of the steel coil, the semi-automatic strapping machine 2 is installed on a second lifting platform 25, and is used to make the top surface of the semi-automatic strapping machine 2 contact the bottom surface of the steel coil, and the strapping conveying mechanism is located on one side of the semi-automatic strapping machine 2, and the strapping conveying mechanism comprises a conveying line 4 and a clamping mechanism, one end of the conveying line 4 extends to the wire feeding end of the semi-automatic strapping machine 2, and the conveying line 4 The other end of the steel coil passes through the inner ring of the steel coil and extends to the bundling end of the semi-automatic bundling machine 2. The clamping mechanism is slidably installed on the conveyor line 4. The clamping mechanism moves along the trajectory of the conveyor line 4. The clamping mechanism is used to clamp the strapping at the wire feeding end of the semi-automatic bundling machine 2 and drive the strapping from the inner ring of the steel coil to the bundling end of the semi-automatic bundling machine 2. Due to the large size of the steel coil, there is currently no bundling machine for bundling steel coils, that is, the size of the bundling machine is much smaller than the size of the steel coil, and it is impossible to automatically complete the bundling of the inner ring of the steel coil with the head. Therefore, a strapping conveying mechanism is set on the basis of the semi-automatic bundling machine 2. When in use, the steel coil is first hoisted on the supporting platform 1 by a clamping machine. It is necessary to make it in a horizontal coil state, that is, the outer ring of the steel coil contacts the supporting rotating roller 3, so that the steel coil The axis of the semi-automatic baler 2 is set horizontally, and then the semi-automatic baler 2 is moved to the position below the steel coil, and the baling height of the semi-automatic baler 2 is adjusted by the second lifting platform 25, so that the working surface of the semi-automatic baler 2 contacts the outer ring of the steel coil, and then the strapping conveying mechanism is placed on one side of the semi-automatic baler 2, and the strapping sent out by the wire feeding end of the semi-automatic baler 2 is clamped by the clamping mechanism, and the clamping mechanism moves along the trajectory of the conveyor line 4, so that the strapping passes around the inner ring of the steel coil and is conveyed to the baling end of the semi-automatic baler 2. The operator starts the semi-automatic baler 2 to bundle the steel coil, and then the supporting rotating roller 3 drives the steel coil to rotate, adjusts the baling position of the steel coil, completes multiple baling operations of the steel coil, and completes the inner ring of the steel coil with a leading by forming multiple straps on the steel coil. The semi-automatic baler 2 can be effectively fixed to prevent and control the loosening of the inner ring head, and eliminate the adverse effects caused by the loosening of the inner ring of the steel coil during the hood annealing production; the operator only needs to stand at the baling end of the semi-automatic baler 2 to operate the semi-automatic baler 2 to perform the baling operation, which reduces the labor intensity of the workers, and the baling belt conveying mechanism can automatically wrap the steel coil to convey the baling belt, thereby improving the baling efficiency and baling effect of the steel coil; wherein, the purpose of using the semi-automatic baler 2 is that, compared with the fully automatic baler, the working surface of the semi-automatic baler does not have a gantry wire feeding mechanism, so that one end of the baling belt is the active end, and manual labor is required to take the baling belt around the baling object to complete the baling operation, thereby being able to cooperate with the baling belt conveying mechanism to complete the winding and baling of the steel coil, and effectively fix the inner ring head of the steel coil.

[0033] Furthermore, a limiting mechanism is arranged on the top of the supporting platform 1, and the limiting mechanism includes a front limiting plate 33 and a rear limiting plate 34. A limiting groove 35 is provided on the top surface of the supporting platform 1 along the axial direction of the supporting rotating roller 3. A bidirectional threaded screw 36 is rotatably arranged in the limiting groove 35. The two thread segments of the bidirectional threaded screw 36 with opposite thread rotation directions are threadedly sleeved with a limiting slider 37. The front limiting plate 33 and the rear limiting plate 34 are respectively installed on the two limiting sliders 37. A motor 38 is installed on the supporting platform 1. The output shaft of the motor 38 is transmission-connected to the bidirectional threaded screw 36. The opposite end surfaces of the front limiting plate 33 and the rear limiting plate 34 are rotatably provided with a plurality of groups of limiting rollers 39. The limiting rollers 39 of the front limiting plate 33 and the limiting sliders of the rear limiting plate 34 The rollers 39 are in contact with the two ends of the steel coil in the axial direction. When the steel coil is suspended, the distance between the front limit plate 33 and the rear limit plate 34 is greater than the axial length of the steel coil, so that the steel coil can be placed on the supporting platform 1 smoothly. Then, the motor 38 drives the bidirectional threaded screw 36 to rotate, so that the movement directions of the front limit plate 33 and the rear limit plate 34 are opposite, so that the limit roller 39 of the front limit plate 33 and the limit roller 39 of the rear limit plate 34 contact the steel coil, complete the limitation of the steel coil, avoid the steel coil from tipping over when bundling, and improve production safety. Secondly, the limit roller 39 and the steel coil are in rolling contact, which greatly reduces the friction between the steel coil and the limit roller 39. When the steel coil changes the bundling position, the steel coil can rotate smoothly without being scratched.

[0034] Embodiment 2

[0035] Based on the first embodiment, Figure 1 and Figure 2As shown, a plurality of pulleys 8 are arranged on the conveyor line 4 to rotate in sequence along the direction of its own trajectory, and the plurality of pulleys 8 are connected by transmission belts 9. The clamping mechanism is installed on the outer ring wall of the conveyor belt 9, and the clamping mechanism is driven by the conveyor belt 9 to move in a circular manner, so that the strap is conveyed around the steel coil to the strapping end of the semi-automatic baling machine 2. The conveyor line 4 includes a semicircular ring frame 5, an upper track 6 and a lower track 7. The axis of the semicircular ring frame 5 is horizontally arranged and perpendicular to the axis of the steel coil. Both ends of the opening of the semicircular ring frame 5 are provided with plug-in grooves, and plug-in blocks are fixed at one end of the upper track 6 and one end of the lower track 7. The plug-in blocks are adapted in the plug-in grooves. The upper track 6 is located above the lower track 7. The upper track 6 and the lower track 7 are connected to the semicircular ring frame 5 by screws, and the tail of the screw is inserted into The plug-in block is connected to the plug-in groove through threads, and a plurality of pulleys 8 are evenly spaced on the semicircular ring frame 5, the upper rail 6 and the lower rail 7. One of the pulleys is connected to a driving motor, which drives one of the pulleys 8 to rotate through the driving motor. The pulley 8 drives the remaining pulleys 8 to rotate through the conveyor belt 9, thereby driving the clamping mechanism to move along the track of the conveyor line 4. The length of the upper rail 6 and the lower rail 7 are assembled according to the axial length of the steel coil, so that one end of the lower rail 6 extends to the wire feeding end of the semi-automatic baler 2, and the upper rail 6 can smoothly pass through the inner ring of the steel coil, and the end of the upper rail 6 away from the semicircular ring frame 5 extends to the baling end of the semi-automatic baler 2, so that the track length of the conveyor line 4 can be adapted and assembled according to the size of the steel coil to adapt to the strapping operation of steel coils of different sizes.

[0036] Embodiment 3

[0037] Based on the second embodiment, Figure 1 As shown, the strapping conveying mechanism includes a first lifting platform 10, and the first lifting platform 10 is provided with a screw groove 11 toward the axial direction of the supporting rotating roller 3, a screw 12 is rotatably arranged in the screw groove 11, a screw slider 13 is threadedly sleeved on the screw 12, the screw slider 13 is slidably adapted to the screw groove 11, the bottom of the semicircular ring frame 5 is fixed to the top of the screw slider 13, a screw motor 14 is arranged on one side of the first lifting platform 10, and the output shaft of the motor 14 is connected to the screw 12. When the strapping operation of the steel coil is completed, the screw motor 14 is The machine 14 drives the screw 12 to rotate, so that the screw slider 13 makes a linear motion along the axial direction of the screw 12, and the screw slider 13 drives the conveyor line 4 to make a linear motion. Since the conveyor line 4 is not a complete ring, that is, an incomplete ring structure with one end open, the conveyor line 4 can move along the axial direction of the steel coil and separate from the steel coil. At this time, the steel coil with the strapping is removed again by the clamping machine, and then a new steel coil is hoisted for strapping. After the steel coil is placed on the supporting platform 1, the screw motor 14 is reversed to reset the conveyor line 4 to perform the strapping operation on the new steel coil.

[0038] Embodiment 4

[0039] Based on the third embodiment, Figure 1and Figure 4 As shown, the clamping mechanism includes a horizontal push rod 15, a clamping block 16 and a clamping plate 17. The cylinder of the horizontal push rod 15 is installed on the conveyor belt 9. The telescopic shaft of the horizontal push rod 15 is connected to the clamping block 16. Two clamping plates 17 are arranged on the upper and lower ends of the clamping block 16 close to the semi-automatic baler 2. The clamping plates 17 move along the vertical direction. The moving directions of the two clamping plates 17 are opposite. A driving cavity 18 is arranged in the clamping block 16. A first straight tooth 19 and a second straight tooth 20 are arranged in the driving cavity 18 along the telescopic direction of the horizontal push rod 15. The first straight tooth 19 and the second straight tooth 20 are respectively The two clamping plates 17 are connected, a gear 21 is arranged between the first straight tooth 19 and the second straight tooth 20, the gear 21 is rotatably connected to the clamping block 16, the first straight tooth 19 and the second straight tooth 20 are both meshed with the gear 21, an electromagnet 22 is arranged in the driving cavity 18, a permanent magnet 23 is fixed on the first straight tooth 19, the permanent magnet 23 and the electromagnet 22 are arranged oppositely, the electromagnet 22 is energized to generate a magnetic pole with a different magnetic property from the permanent magnet 23, the permanent magnet 23 is connected to the reset spring 24, the end of the reset spring 24 away from the permanent magnet 23 is connected to the clamping block 16, when the semi-automatic baling machine 2 is clamped, the reset spring 24 is connected to the clamping block 16, and the reset spring 24 is connected to the clamping block 16. When the strapping head of the wire end is sent out, the horizontal push rod 15 first drives the clamping block 16 to move close to the strapping head, so that the strapping head is located between the two clamping plates 17. Then, the electromagnet 22 is energized to attract the permanent magnet 23, so that the permanent magnet 23 compresses the reset spring 24 to drive the first straight tooth 19 to move, and the first straight tooth 19 drives the gear 21 to rotate, and the gear 21 drives the second straight tooth 20 to move, so that the first straight tooth 19 and the second straight tooth 20 can move at the same time, and the moving directions are opposite, so that the first straight tooth 19 and the second straight tooth 20 drive the two clamping plates 17 to move, so that the clamping plates 17 clamp the strapping. The clamping mechanism moves along the conveying track of the conveyor line 4, so that the strapping head passes around the inner circle of the steel coil and moves to the baling end of the semi-automatic baler 2. Then, the electromagnet 22 is powered off, and under the reaction force of the reset spring 24, the first spur tooth 19 is reset. The reset of the first spur tooth 19 drives the gear 21 to reverse, so that the second spur tooth 20 is reset, thereby separating the two clamping plates 17. The staff can then take the strapping head and insert it into the semi-automatic baler 2 to perform baling operations. Through the design of the electromagnet 22 and the spur teeth, the two clamping plates 17 can be driven to move in a small range to clamp the strapping head.

[0040] Embodiment 5

[0041] Based on the fourth embodiment, Figures 1 to 3As shown, a wire feeding mechanism is installed on the side wall of the wire feeding end of the semi-automatic baler 2, and the wire feeding mechanism comprises a horizontal mounting plate 26, a fixed vertical plate 27 and a movable vertical plate 28. The horizontal mounting plate 26 is fixedly connected to the semi-automatic baler 2. The horizontal mounting plate 26 is provided with a fixed vertical plate 27 and a movable vertical plate 28 at intervals along the axial direction of the supporting rotating roller 3. The movable vertical plate 28 has the freedom to move along the axial direction of the supporting rotating roller 3. The shapes of the fixed vertical plate 27 and the movable vertical plate 28 are both U-shaped. The U-shaped opening of the fixed vertical plate 27 and the movable vertical plate 28 are connected to each other. The U-shaped opening of each of the two mounting plates 28 is provided with a clamping mechanism, which includes a fixed roller 29 and a lifting roller 30. The lifting roller 30 moves along the height direction of the fixed vertical plate 27. The lifting roller 30 is located directly below the fixed roller 29. The clamping mechanism also includes a lifting cylinder 31. The telescopic shaft of the lifting cylinder 31 is connected to the lifting roller 30. A linear drive module 32 is provided on the horizontal mounting plate 26. The movable vertical plate 28 is installed on the slide seat of the linear drive module 32. In order to ensure that the clamping mechanism can stably clamp the strapping head sent out by the semi-automatic strapping machine A wire feeding mechanism is further provided on the semi-automatic baler 2. Specifically, the strapping head sent out by the wire feeding end of the semi-automatic baler 2 passes between the fixed roller 29 and the lifting roller 30. Then, the lifting cylinder 31 drives the lifting roller 30 to move close to the fixed roller 29, so that the strapping head is clamped between the lifting roller 30 and the fixed roller 29. Then, the linear drive module 32 drives the movable vertical plate 28 to move away from the fixed vertical plate 27, so that the strapping head between the fixed vertical plate 27 and the movable vertical plate 28 is straightened. The clamping block 16 is located on the fixed vertical plate 2 7 and the movable vertical plate 28, the clamping block 16 clamps the strap between the fixed vertical plate 27 and the movable vertical plate 28 through two clamping plates 17, then the lifting roller 30 moves away from the fixed roller 29, the clamping block 16 resets to pull the strap out from the open end of the clamping mechanism, and finally, the clamping block 16 clamps the strap and transports it to the baling end of the semi-automatic baler 2 for baling operation, while the wire feeding mechanism resets and waits for the semi-automatic baler 2 to send out the strapping head again, thereby locating the strapping head, so that the clamping mechanism can smoothly clamp the strapping head for transportation.

[0042] A method for controlling the inner ring of a steel coil being unwound from a cover to be loosened and collapsed, using the above-mentioned strapping device to strap the steel coil, comprises the following steps:

[0043] S1, hoisting and placing the steel coil on two bearing platforms 1, the steel coil is located in the supporting space, the supporting rotating roller 3 contacts the supporting steel coil, and the axial direction of the steel coil is parallel to the axial direction of the supporting rotating roller 3;

[0044] S2. Adjust the height of the semi-automatic baler 2 by means of the second lifting platform 25 so that the top surface of the semi-automatic baler 2 contacts the bottom surface of the steel coil;

[0045] S3, the clamping mechanism clamps the strapping tape sent out from the wire feeding end of the semi-automatic baler, and the clamping mechanism passes around the inner ring of the steel coil along the track direction of the conveyor line 4 to convey the strapping tape to the baling end of the semi-automatic baler 2, so that the strapping tape can be automatically wound around the steel coil. The operator stands at the baling end of the semi-automatic baler 2, and the operator takes the strapping tape sent from the conveyor line 4 and cooperates with the semi-automatic baler 2 to perform baling operation;

[0046] S4, the supporting rotating roller 3 rotates to drive the steel coil to rotate, changing the bundling position of the steel coil.

[0047] S5. Tie three straps on the inner ring of the steel coil in sequence. The first strap is 100-150mm away from the inner ring of the steel coil, and the distance between two adjacent straps is 100-200mm.

[0048] S6. Tie a fourth strap on the inner ring of the steel coil, the fourth strap being arranged opposite to the first strap;

[0049] S7. Finally, the steel coil with strapping is sent to the hood furnace for annealing. The double-sided automatic coil clamp is used to lift the coil onto the hood furnace for stacking, and then the hood annealing process is carried out. During the hood annealing process, the transverse strapping on the steel coil effectively and firmly fixes the inner ring head, which prevents and controls the inner ring head from loosening and collapsing. At the same time, the outer ring tail of the steel coil can also be effectively fixed, effectively preventing and controlling the outer ring from loosening and falling off. After the hood annealing process is completed, the double-sided automatic coil clamp is used to lift the stacked coil on the furnace.

Claims

1. A strapping device for controlling the inner ring of a hood-type annealed steel coil to loosen and collapse, characterized in that: The invention comprises a supporting platform (1), a semi-automatic baler (2) and a strapping conveying mechanism, wherein the two supporting platforms (1) are arranged opposite to each other, the top surface of the supporting platform (1) is rotatably provided with a supporting rotating roller (3), a supporting space for the steel coil is formed between the supporting rotating rollers (3) of the two supporting platforms (1), the semi-automatic baler (2) is located between the two supporting platforms (1), the strapping direction of the semi-automatic baler (2) is toward the axial direction of the steel coil, the semi-automatic baler (2) is installed on the second lifting platform (25), and is used to make the top surface of the semi-automatic baler (2) contact the bottom surface of the steel coil, and the strapping conveying mechanism is located On one side of the semi-automatic baler (2), the strap conveying mechanism includes a conveyor line (4) and a clamping mechanism, one end of the conveyor line (4) extends to the wire feeding end of the semi-automatic baler (2), and the other end of the conveyor line (4) passes through the inner ring of the steel coil and extends to the baling end of the semi-automatic baler (2), the clamping mechanism is slidably installed on the conveyor line (4), and the clamping mechanism moves along the trajectory of the conveyor line (4), and the clamping mechanism is used to clamp the strap at the wire feeding end of the semi-automatic baler (2) and drive the strap to bypass the inner ring of the steel coil and be conveyed to the baling end of the semi-automatic baler (2).

2. A strapping device for controlling the inner ring of a hood-type annealed steel coil from collapsing according to claim 1, characterized in that: The conveyor line (4) is provided with a plurality of pulleys (8) which rotate in sequence along the direction of its own track. The plurality of pulleys (8) are connected to each other through a conveyor belt (9). The clamping mechanism is installed on the outer ring wall of the conveyor belt (9).

3. A strapping device for controlling the inner ring of a hood-type annealed steel coil from collapsing according to claim 2, characterized in that: The conveyor line (4) comprises a semicircular ring frame (5), an upper track (6) and a lower track (7). The axis of the semicircular ring frame (5) is arranged horizontally and perpendicular to the axis of the steel coil. Both ends of the opening of the semicircular ring frame (5) are provided with plug-in grooves. One end of the upper track (6) and one end of the lower track (7) are fixed with plug-in blocks, and the plug-in blocks are adapted in the plug-in grooves. The upper track (6) is located above the lower track (7). The upper track (6) and the lower track (7) are connected to the semicircular ring frame (5) by screws. The tail of the screw penetrates into the plug-in groove and is threadedly connected to the plug-in block.

4. A strapping device for controlling the inner ring of a hood-type annealed steel coil from collapsing according to claim 3, characterized in that: The strapping conveying mechanism comprises a first lifting platform (10), wherein the first lifting platform (10) is provided with a screw groove (11) axially toward the supporting rotating roller (3), a screw (12) is rotatably arranged in the screw groove (11), a screw slider (13) is threadedly mounted on the screw (12), the screw slider (13) is slidably adapted to the screw groove (11), the bottom of the semicircular ring frame (5) is fixed to the top of the screw slider (13), a screw motor (14) is arranged on one side of the first lifting platform (10), and the output shaft of the motor (14) is drivingly connected to the screw (12).

5. The strapping device for controlling the inner ring of a hood-type annealed steel coil from collapsing according to claim 2, characterized in that: The clamping mechanism comprises a horizontal push rod (15), a clamping block (16) and a clamping plate (17); the cylinder of the horizontal push rod (15) is installed on the conveying belt (9); the telescopic shaft of the horizontal push rod (15) is connected to the clamping block (16); two clamping plates (17) are arranged above and below one end of the clamping block (16) close to the semi-automatic baler (2); the clamping plate (17) moves in a vertical direction, and the moving directions of the two clamping plates (17) are opposite.

6. A strapping device for controlling the inner ring of a hood-type annealed steel coil from collapsing according to claim 5, characterized in that: A driving chamber (18) is provided in the clamping block (16), and a first straight tooth (19) and a second straight tooth (20) are arranged in the driving chamber (18) in a direction of extension and contraction of the horizontal push rod (15), the first straight tooth (19) and the second straight tooth (20) are connected to the two clamping plates (17) respectively, a gear (21) is provided between the first straight tooth (19) and the second straight tooth (20), and the gear (21) is rotatably connected to the clamping block (16), and the first straight tooth (19) and the second straight tooth (20) are connected to the clamping block (16). The teeth (20) are all meshed with the gear (21), an electromagnet (22) is arranged in the driving cavity (18), a permanent magnet (23) is fixed on the first spur tooth (19), the permanent magnet (23) and the electromagnet (22) are arranged opposite to each other, the electromagnet (22) generates a magnetic pole with a different magnetic property from that of the permanent magnet (23) when power is supplied to the electromagnet (22), the permanent magnet (23) is connected to a reset spring (24), and the end of the reset spring (24) away from the permanent magnet (23) is connected to the clamping block (16).

7. The strapping device for controlling the inner ring collapse of a hood-type annealed steel coil according to claim 1, characterized in that: A wire feeding mechanism is installed on the side wall of the wire feeding end of the semi-automatic baler (2), and the wire feeding mechanism comprises a horizontal mounting plate (26), a fixed vertical plate (27) and a movable vertical plate (28). The horizontal mounting plate (26) is fixedly connected to the semi-automatic baler (2). The horizontal mounting plate (26) is provided with the fixed vertical plate (27) and the movable vertical plate (28) at intervals along the axial direction of the supporting rotating roller (3). The movable vertical plate (28) has the freedom to move along the axial direction of the supporting rotating roller (3). The shape of the fixed vertical plate (27) and the shape of the movable vertical plate (28) are both U-shaped. A wire clamping mechanism is provided in the U-shaped opening of the fixed vertical plate (27) and the U-shaped opening of the movable vertical plate (28). The wire clamping mechanism comprises a fixed roller (29) and a lifting roller (30). The lifting roller (30) moves along the height direction of the fixed vertical plate (27).

8. A strapping device for controlling the inner ring of a hood-type annealed steel coil from collapsing according to claim 7, characterized in that: The lifting roller (30) is located directly below the fixed roller (29), the wire clamping mechanism also includes a lifting cylinder (31), the telescopic shaft of the lifting cylinder (31) is connected to the lifting roller (30), a linear drive module (32) is arranged on the horizontal mounting plate (26), and the movable vertical plate (28) is mounted on the slide seat of the linear drive module (32).

9. A strapping device for controlling the inner ring collapse of a hood-type annealed steel coil according to claim 1, characterized in that: A limiting mechanism is arranged on the top of the bearing platform (1), and the limiting mechanism comprises a front limiting plate (33) and a rear limiting plate (34). A limiting groove (35) is provided on the top surface of the bearing platform (1) along the axial direction of the supporting rotating roller (3). A bidirectional threaded screw (36) is rotatably arranged in the limiting groove (35). The two thread segments of the bidirectional threaded screw (36) with opposite thread rotation directions are both threadedly sleeved with a limiting slider (37). The front limiting plate (33) and the rear limiting plate (34) are connected to each other. The positioning plates (34) are respectively mounted on the two limiting sliding blocks (37); a motor (38) is mounted on the supporting platform (1); an output shaft of the motor (38) is drivingly connected to the bidirectional threaded screw (36); the opposite end surfaces of the front limiting plate (33) and the rear limiting plate (34) are rotatably provided with a plurality of groups of limiting rollers (39); the limiting rollers (39) of the front limiting plate (33) and the limiting rollers (39) of the rear limiting plate (34) are respectively in contact with the two ends of the axial direction of the steel coil.

10. A method for controlling the inner ring of a steel coil being unwound by a cover, wherein the steel coil is bundled by using the strapping device as claimed in claim 1, characterized in that: The following steps are involved: S1. Lifting and placing the steel coil on two bearing platforms (1), the steel coil is located in the supporting space, so that the supporting rotating roller (3) contacts the supporting steel coil, and the axial direction of the steel coil is parallel to the axial direction of the supporting rotating roller (3); S2. adjusting the height of the semi-automatic baling machine (2) by means of the second lifting platform (25) so that the top surface of the semi-automatic baling machine (2) contacts the bottom surface of the steel coil; S3, the clamping mechanism clamps the strapping tape sent out by the wire feeding end of the semi-automatic strapping machine, and the clamping mechanism passes around the inner ring of the steel coil along the trajectory direction of the conveyor line (4) and conveys the strapping tape to the strapping end of the semi-automatic strapping machine (2), so that the strapping tape can be automatically wound around the steel coil. The operator stands at the strapping end of the semi-automatic strapping machine (2), and the operator takes the strapping tape sent by the conveyor line (4) and cooperates with the semi-automatic strapping machine (2) to perform the strapping operation; S4, the supporting rotating roller (3) rotates to drive the steel coil to rotate, thereby changing the bundling position of the steel coil. S5. Tie three straps on the inner ring of the steel coil in sequence. The first strap is 100-150mm away from the inner ring of the steel coil, and the distance between two adjacent straps is 100-200mm. S6. Tie a fourth strap on the inner ring of the steel coil, the fourth strap being arranged opposite to the first strap; S7. Finally, the steel coil with strapping is sent to the bell-type furnace for annealing.

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