Steel coil centering device and steel coil coiling system

Abstract

The utility model relates to a steel coil centering device which comprises a centering device frame, a centering layer is arranged on the centering device frame and comprises a plurality of sets of centering modules, and each set of centering module comprises two centering execution parts and a centering driving unit used for driving the two centering execution parts to move synchronously so as to be close to or away from each other. The centering driving unit is arranged on the centering device frame, all centering execution parts in the centering layer are distributed in a concyclic mode relative to a reference axis, and the two centering execution parts in the same group are arranged in a central symmetry mode relative to the reference axis. In addition, the utility model further relates to a steel coil feeding system adopting the steel coil centering device. According to the steel coil centering device, the centering layer is arranged on the centering device frame, the centering modules in the centering layer are matched, steel coils are centered in multiple directions, the centering precision is guaranteed, mechanical centering has very high centering reliability, and the coiling precision of the steel coils can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of metallurgical production, and specifically relates to a steel coil centering device and a steel coil winding system adopting the steel coil centering device. Background Art

[0002] In the metallurgical industry, many processes require the transportation of steel coils. The transportation of steel coils mainly includes ground transportation and lifting. Ground transportation is mainly completed by steel coil transport vehicles, and lifting is generally achieved by mounting electromagnetic suction cups on workshop cranes. The steel coils can be positioned by moving steel coil transport vehicles and workshop cranes, but this positioning accuracy is low, which may easily lead to problems such as low steel coil positioning accuracy, or repeated positioning is required, and the efficiency of steel coil winding operation is low. Utility Model Content

[0003] The utility model relates to a steel coil centering device and a steel coil winding system using the steel coil centering device, which can at least solve some defects of the prior art.

[0004] The utility model relates to a steel coil centering device, comprising a centering device frame, a centering layer arranged on the centering device frame, the centering layer comprising a plurality of centering modules, each centering module group comprising two centering actuators and a centering drive unit for driving the two centering actuators to move synchronously to move closer to or farther from each other, the centering drive unit being arranged on the centering device frame, the centering actuators in the centering layer being cocircularly distributed relative to a reference axis, and the two centering actuators in the same group being symmetrically arranged relative to the center of the reference axis.

[0005] As one of the implementation modes, there are multiple centering layers and they are arranged on the centering device frame in sequence from top to bottom.

[0006] As one of the implementation modes, the centering execution part adopts a centering roller, and the axis of the centering roller is parallel to the horizontal plane.

[0007] As one of the implementation modes, the centering drive unit includes two centering drive devices with interlocking actions, and the two centering drive devices are respectively drivingly connected to two corresponding centering actuators.

[0008] As one of the implementation modes, the centering drive device adopts a centering hydraulic cylinder.

[0009] As one of the implementation modes, each centering drive device in the same centering layer is connected to the same hydraulic synchronous motor.

[0010] As one of the implementation modes, each of the centering actuators is respectively configured with a guiding mechanism for guiding its translational movement.

[0011] As one of the implementation manners, the centering device frame includes two frame bodies which are oppositely arranged on both sides of the reference axis, and two centering execution parts of the same group are arranged on the two frame bodies.

[0012] The present utility model further relates to a steel coil loading system, which includes a coil receiving device and the steel coil centering device as described above. A telescopic drum for inner hole support of the steel coil is arranged on the coil receiving device, and the axis of the telescopic drum constitutes the reference axis. Each centering execution part in the centering layer is arranged around the coil receiving device.

[0013] As one of the implementation manners, the coil receiving device includes a turning table and a turning driving mechanism. The turning table is connected to the turning driving mechanism and thus has a coil receiving position and a coil turning position. In the coil receiving position, the tabletop of the turning table is parallel to the horizontal plane, and in the coil turning position, the tabletop of the turning table is parallel to the vertical direction. The telescopic drum is installed on the turning table.

[0014] The present utility model has at least the following beneficial effects:

[0015] In the present utility model, a centering layer is arranged on the centering device frame. Through the cooperation of each centering module in the centering layer, the steel coil is centered in multiple directions to ensure the centering accuracy. The mechanical centering also has very high centering reliability and can improve the steel coil loading accuracy. Especially when the steel coil is loaded onto an inner hole support member such as a telescopic drum, the axis alignment between the steel coil and the inner hole support member can be realized, ensuring the steel coil loading accuracy and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic diagram of mechanical centering provided by an embodiment of the present utility model;

[0018] Figure 2 It is an assembly schematic diagram of a drum and a coil turning device provided by an embodiment of the present utility model;

[0019] Figure 3 and Figure 4 They are respectively schematic diagrams of the turning table in the coil receiving position and the coil turning position;

[0020] Figure 5 It is a structural schematic diagram of the mechanical centering device provided by an embodiment of the present utility model;

[0021] Figure 6 Schematic diagram of connection between each pair of execution units in the same pair of middle layers and the same hydraulic synchronous motor;

[0022] Figure 7 Schematic diagram of lifting the upper coil provided by the embodiment of the present invention;

[0023] Figure 8 Schematic diagram of the structure of the drum provided by the embodiment of the present invention. Detailed implementation manners

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0025] Embodiment 1

[0026] As Figures 1-5 , the embodiment of the present invention provides a steel coil centering device, including a centering device frame 3. A centering layer is arranged on the centering device frame 3. The centering layer includes multiple groups of centering modules 4. Each group of centering modules 4 includes two centering execution parts and a centering drive unit for driving the two centering execution parts to move synchronously to approach or separate from each other. The centering drive unit is arranged on the centering device frame 3. The centering execution parts in the centering layer are distributed in a common circle with respect to a reference axis, and the two centering execution parts in the same group are symmetrically arranged with respect to the reference axis.

[0027] Preferably, there are multiple centering layers, which are sequentially arranged on the centering device frame 3 from top to bottom. By using multiple centering layers, the steel coil 1 can be centered sequentially from top to bottom, and / or by performing centering operations simultaneously through multiple centering layers, the centering accuracy can be effectively improved.

[0028] In one of the embodiments, as Figure 5 , a centering roller 401 is used as the centering execution part. The axis of the centering roller 401 is parallel to the horizontal plane. Therefore, the centering roller 401 is suitable for rolling contact with the steel coil 1, reducing the friction between the two and avoiding surface defects on the strip steel. The centering roller 401 is rotatably installed on the centering roller frame 402, and the centering roller frame 402 is driven by the centering drive unit, so that it can approach or separate from the drum axis.

[0029] Preferably, the centering drive unit includes two centering drive devices 403 that interlock. The two centering drive devices 403 are respectively drivingly connected to the corresponding two centering execution parts. The two centering drive devices 403 interlock to make the two opposite centering execution parts move synchronously, which can ensure the centering accuracy.

[0030] The above centering drive device 403 can adopt a centering hydraulic cylinder. Among them, the synchronous movement between the centering execution devices can be realized by a hydraulic synchronous motor; further preferably, as Figure 6 , the centering drive devices 403 in the same centering layer are connected to the same hydraulic synchronous motor to realize the synchronous movement of the centering drive devices 403 in the same centering layer.

[0031] Further, each of the centering execution parts is respectively provided with a guiding mechanism 404 for guiding its translational movement, which can improve the centering accuracy and operation reliability; when the centering roller 401 is rotatably installed on the centering roller frame 402, the guiding mechanism 404 is used to guide the translational movement of the centering roller frame 402. The guiding mechanism 404 can be a guiding method of slider-rail cooperation, a guiding method of sliding sleeve-guide rod cooperation, etc.

[0032] Optionally, as Figure 1 , the centering device frame 3 includes two frame bodies, which are relatively arranged on both sides of the reference axis, and the two centering execution parts of the same group are respectively arranged on the two frame bodies. The centering drive device 403, the guiding mechanism 404, etc. can be installed on the corresponding frame body through a fixing block 405, etc.

[0033] Embodiment 2

[0034] As Figures 1-4 , the embodiment of the present invention provides a steel coil loading system, which includes a coil receiving device 5 and the steel coil centering device provided in the first embodiment. The coil receiving device 5 is provided with a telescopic drum 6 for supporting the inner hole of the steel coil 1, and the axis of the telescopic drum 6 constitutes the reference axis, and the centering execution parts in the centering layer are arranged around the coil receiving device 5.

[0035] Among them, as Figure 7 , the lifting of the steel coil 1 can be realized by using a traveling crane to mount an electromagnetic chuck 2. By energizing and de-energizing the electromagnetic chuck 2, the steel coil 1 can be conveniently lifted and released. That is, the loading equipment includes a traveling crane and an electromagnetic chuck 2 mounted on the traveling crane. Optionally, a plurality of lifting lugs (usually three, but other numbers are also possible) are provided on the electromagnetic chuck 2, and the electromagnetic chuck 2 is mounted on the traveling crane by using a chain or the like. The above traveling crane can be a manned traveling crane or an unmanned automatic traveling crane.

[0036] In one of the embodiments, asFigures 2-4 The coiling device 5 includes a turning table 501 and a turning drive mechanism 509. The turning table 501 is connected to the turning drive mechanism 509 and thus has a coiling position and an uncoiling position. In the coiling position, the tabletop of the turning table 501 is parallel to the horizontal plane. In the uncoiling position, the tabletop of the turning table 501 is parallel to the vertical direction. The expandable and contractible winding drum 6 is installed on the turning table 501. In this way, by turning the turning table 501, the steel coil 1 can be turned from a vertical position to a horizontal position, which is convenient for subsequent processing of the steel coil 1, such as removing the bundling tape and unwinding.

[0037] Furthermore, a fixed base 502 can be provided. The fixed base 502 is used to be installed on the workshop foundation. The above-mentioned turning table 501 is rotatably installed on the fixed base 502. Driven by the turning drive mechanism 509, the turning table 501 rotates relative to the fixed base 502, so that the switching between the coiling position and the uncoiling position can be realized.

[0038] Preferably, the turning table 501 is provided with supporting feet. When the turning table 501 is in the uncoiling position, the supporting feet just rest on the workshop foundation, which can improve the structural stability and working reliability of the uncoiling device.

[0039] The turning drive mechanism 509 includes, but is not limited to, a turning hydraulic cylinder. Taking the turning hydraulic cylinder as an example, the cylinder body is hinged and installed on the workshop foundation, and the output end is hinged to the turning table 501.

[0040] Preferably, the driving point 504 of the turning table 501 and the rotating point 503 of the turning table 501 are respectively arranged on both sides of the axis of the winding drum 6. Among them, the driving point 504 is the connection point between the turning drive mechanism 509 and the turning table 501, and the rotating point 503 is the hinge point between the turning table 501 and the fixed base 502. This can improve the stability and safety of the turning of the turning table 501 and the steel coil 1.

[0041] In one embodiment, the expandable and contractible winding drum 6 is rotatably installed on the turning table 501. Correspondingly, a rotating drive mechanism for driving the expandable and contractible winding drum 6 to rotate is provided on the turning table 501. By driving the expandable and contractible winding drum 6 to rotate, the expandable and contractible winding drum 6 can drive the steel coil 1 to rotate, which is convenient for subsequent process operations, such as facilitating the robot to remove the bundling tape or unwind, etc.

[0042] Optionally, as Figure 3, the rotation driving mechanism includes a driving motor 506, a driving gear 507 and a transmission gear 508. The driving motor 506 is installed on the turning table 501, the driving gear 507 is installed on the output shaft of the driving motor 506, and the transmission gear 508 is installed on the expanding and contracting drum 6. The transmission gear 508 meshes with the driving gear 507. Among them, the axis of the transmission gear 508 is parallel to the axis of the drum, and more preferably, they are coaxially arranged. The above-mentioned driving motor 506, driving gear 507 and transmission gear 508 are all preferably arranged inside the turning table 501 (taking the receiving coil position as an example, the above-mentioned driving motor 506, driving gear 507 and transmission gear 508 are all below the tabletop of the turning table 501), so as to avoid interfering with the steel coil 1 placed on the tabletop. In addition, a support bearing 505 can be arranged on the turning table 501 to ensure the installation stability and application reliability of the expanding and contracting drum 6.

[0043] The existing expanding and contracting drums are all applicable to this embodiment. Among them, the above-mentioned expanding and contracting drum 6 includes a plurality of sector plates 601 and an expanding and contracting driving mechanism for driving each sector plate 601 to move synchronously in the radial direction to achieve expansion and contraction. In the reduced diameter state, each sector plate 601 is distributed in a common small circle (the diameter of this small circle is R1), and in the expanded diameter state, each sector plate 601 is distributed in a common large circle (the diameter of this large circle is R2).

[0044] In one embodiment, such as Figure 8 , the above-mentioned expanding and contracting driving mechanism includes a pyramid sleeve 602 and an expanding and contracting driving structure for driving the pyramid sleeve 602 to move axially along itself. The pyramid sleeve 602 has a plurality of driving inclined plane groups, and the number of driving inclined plane groups is the same as that of the sector plates 601 and they are in one-to-one correspondence and cooperation. Each driving inclined plane group includes a plurality of driving inclined planes 607 distributed in sequence along the axial direction of the pyramid sleeve 602. A plurality of receiving driving inclined planes that are wedge-shapedly matched with each driving inclined plane 607 are provided on the sector plate 601. When the pyramid sleeve 602 moves axially along itself, based on the wedge-shaped mating relationship between each driving inclined plane 607 and each receiving driving inclined plane, each sector plate 601 can be made to move synchronously in the radial direction to achieve the purpose of expanding and contracting the drum.

[0045] Optionally, the number of sector plates 601 is four, and the pyramid sleeve 602 correspondingly has four driving inclined plane groups.

[0046] As a preferred solution, such as Figure 8, The above-mentioned expansion and contraction driving structure includes a hollow main shaft 603, a pull rod 604, and an expansion and contraction power unit 605. The above-mentioned pyramid sleeve 602 is sleeved on the hollow main shaft 603 and can move axially along the hollow main shaft 603. The pull rod 604 is movably arranged in the shaft cavity of the hollow main shaft 603. One end of the pull rod 604 extends out of the hollow main shaft 603 and is connected to the expansion and contraction power unit 605, so that it can move axially in the hollow main shaft 603. The pyramid sleeve 602 is fixedly connected to the pull rod 604, so that the pull rod 604 can drive the pyramid sleeve 602 to move axially.

[0047] The above-mentioned hollow main shaft 603 is the main load-bearing member of the expansion and contraction reel 6, and it can cooperate with the support bearing 505 on the turning platform 501.

[0048] Preferably, a limiting structure is provided on the hollow main shaft 603 for restricting the relative rotation between the pyramid sleeve 602 and the hollow main shaft 603, including but not limited to the following structure: at least one sliding key is provided between the pyramid sleeve 602 and the hollow main shaft 603.

[0049] Optionally, the pyramid sleeve 602 and the pull rod 604 are connected by a flat pin 606. An activity window can be correspondingly opened on the hollow main shaft 603. The flat pin 606 passes through the activity window and is respectively connected to the pyramid sleeve 602 and the pull rod 604. Among them, the length of the activity window in the axial direction of the hollow main shaft 603 should not be less than the activity stroke of the pull rod 604.

[0050] The above-mentioned expansion and contraction power unit 605 can adopt linear driving devices such as hydraulic cylinders and air cylinders. Optionally, as Figure 8 , a detachable fixed connection method such as a flange connection structure 610 can be adopted between the above-mentioned hollow main shaft 603 and the expansion and contraction power unit 605; the output shaft of the expansion and contraction power unit 605 can be connected to the above-mentioned pull rod 604 through a coupling 611.

[0051] In the structure where the above-mentioned expansion and contraction reel 6 is rotatably installed on the turning platform 501, the rotation driving mechanism can be connected to the above-mentioned hollow main shaft 603. For example, a transmission gear 508 is installed on the hollow main shaft 603.

[0052] A relief hole is correspondingly opened on the turning platform 501 for the sector plate 601 to pass through and extend out. In one embodiment, both ends of the sector plate 601 are located on both sides of the tabletop of the turning platform 501, that is, the sector plate 601 partially extends out of the tabletop of the turning platform 501 and partially is located inside the turning platform 501; the diameter of the above-mentioned relief hole is preferably the same as the above-mentioned large circle diameter R2. In this way, in the state where the reel expands in diameter, the sector plate 601 contacts the turning platform 501, and the force received by the sector plate 601 can be more reliably transmitted to the turning platform 501, ensuring the application reliability of the above-mentioned rolling device.

[0053] In one embodiment, as Figure 8 , a positioning plate 608 is provided at the cantilever end of the hollow main shaft 603. The plate surface of the positioning plate 608 is perpendicular to the axis of the hollow main shaft 603. A plurality of positioning blocks protrude from the periphery of the positioning plate 608. Positioning holes are provided on the sector plate 601 in a matching manner. The number of positioning blocks is the same as that of the sector plate 601 and they are arranged in one-to-one correspondence. Each positioning block is inserted into the corresponding positioning hole and the two are in guiding cooperation (the guiding direction is obviously parallel to the radial movement direction of the sector plate 601). Among them, the protruding length of the positioning block ensures that it is still in guiding cooperation with the positioning hole in the state of the drum expanding in diameter. Based on the above design, the movement of the sector plate 601 can be limited to the radial direction, ensuring the reliability of the drum expansion and contraction. In particular, the positioning plate 608 is detachably fixed on the hollow main shaft 603. When the connection between the positioning plate 608 and the hollow main shaft 603 is released, the positioning plate 608 and each sector plate 601 can be removed from the hollow main shaft 603, facilitating the disassembly, assembly and maintenance of the sector plate 601 and the drum. The positioning plate 608 is preferably installed on the hollow main shaft 603 through fastening screws 609, etc.; since the positioning plate 608 is fixed on the hollow main shaft 603, the fastening screw 609 will not bear axial tension during the expansion and contraction of the drum, so reliable structural stability of the positioning plate 608 and guiding effect on the sector plate 601 can be obtained.

[0054] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A steel coil centering device, characterized in that: It comprises a centering device frame, on which a centering layer is arranged, the centering layer comprises a plurality of groups of centering modules, each group of centering modules comprises two centering actuators and a centering drive unit for driving the two centering actuators to move synchronously to move closer to or away from each other, the centering drive unit is arranged on the centering device frame, the centering actuators in the centering layer are cocircularly distributed relative to a reference axis, and the two centering actuators in the same group are symmetrically arranged relative to the center of the reference axis.

2. The steel coil centering device according to claim 1, characterized in that: There are multiple centering layers, which are arranged on the centering device frame in sequence from top to bottom.

3. The steel coil centering device according to claim 1, characterized in that: The centering execution part adopts a centering roller, and the axis of the centering roller is parallel to the horizontal plane.

4. The steel coil centering device according to claim 1, characterized in that: The centering drive unit comprises two centering drive devices with interlocking actions, and the two centering drive devices are respectively drivingly connected to two corresponding centering actuators.

5. The steel coil centering device according to claim 4, characterized in that: The centering drive device adopts a centering hydraulic cylinder.

6. The steel coil centering device according to claim 5, characterized in that: Each centering drive device in the same centering layer is connected to the same hydraulic synchronous motor.

7. The steel coil centering device according to claim 1, characterized in that: Each of the centering actuators is respectively configured with a guiding mechanism for guiding its translational movement.

8. The steel coil centering device according to claim 1, characterized in that: The centering device frame comprises two frame bodies, which are arranged on both sides of the reference axis relatively, and two centering execution parts of the same group are arranged on the two frame bodies.

9. A steel coil winding system, characterized in that: It comprises a coil receiving device and a steel coil centering device as described in any one of claims 1 to 8, wherein the coil receiving device is provided with an expansion and contraction drum for supporting the inner hole of the steel coil, the axis of the expansion and contraction drum constitutes the reference axis, and each centering execution part in the centering layer is arranged around the coil receiving device.

10. The steel coil winding system according to claim 9, characterized in that: The winding device includes a turning table and a turning drive mechanism. The turning table is connected to the turning drive mechanism so as to have a winding position and a turning position. In the winding position, the table surface of the turning table is parallel to the horizontal plane, and in the turning position, the table surface of the turning table is parallel to the vertical plane. The expansion and contraction reel is installed on the turning table.

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