Supporting tool for recovering collapsed layer of hot-rolled coil core

Abstract

The utility model relates to a support tool for recovering the collapsed layer of a hot-rolled coil core, which comprises a screw rod, a fixed sleeve, a movable sleeve and core ejection components, the rear end part of the screw rod is rotatably provided with the fixed sleeve, the front part of the screw rod is meshed with the movable sleeve, the movable sleeve slides along the axial direction of the screw rod, and a plurality of groups of core ejection components are hinged between the movable sleeve and the fixed sleeve. The multiple sets of ejector core assemblies are evenly distributed on the circumferential side of the lead screw in the circumferential direction. Each group of top core components comprises two pull rods and a support rod, the lower ends of the two pull rods are respectively hinged with the movable sleeve and the fixed sleeve, the support rod is hinged between the upper ends of the two pull rods, and the support rods in the plurality of groups of top core components are positioned on the same circumference. Under the action of rotation of the lead screw, the movable sleeve is driven to move, the moving direction depends on the rotation direction of the lead screw, opening and closing movement of the supporting rod is achieved according to different moving directions of the movable sleeve, and the collapsed roll core can be jacked and supported through the supporting rod so that the roll core can be reset conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of hot rolling mills, in particular to a supporting tool for recovering collapsed layers of a hot rolling coil core. Background Art

[0002] Due to the process requirements of hot rolling of plates and strips, when rolling into coils, there is no sleeve installed in the coil core of the hot rolled coil. The aluminum plate and strip are directly rolled into the coiling reel to form a hot rolled coil. After the hot rolled coil is coiled, it needs to be unloaded from the machine and wait for the next cold rolling process to be loaded on the machine. The hot rolled coil can be directly placed on the cold rolling unwinding reel.

[0003] After the hot rolled coil is unloaded from the mill, the coil core has no support, and the thin coil core will collapse. Figure 1 In order to prevent the core from collapsing after long-term storage, two to three layers of the core need to be welded together when the core is removed from the machine. This is usually done by using a long steel pipe to tilt the core, resetting it, and then welding it in place. This operation is very time-consuming and labor-intensive. Summary of the invention

[0004] In order to solve the problem of labor-intensive operation of resetting collapsed coil cores using long steel pipes, the utility model provides a supporting tool for recovering collapsed layers of hot-rolled coil cores. A tool similar to a manual screw-type jack is used to support the collapsed coil core, which can be easily reset and facilitate subsequent welding operations.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A support tool for recovering the collapsed layer of a hot-rolled coil core, comprising a screw rod, a fixed sleeve, a movable sleeve and a top core assembly, wherein the fixed sleeve is rotatably arranged at the rear end of the screw rod, the movable sleeve is engaged at the front end of the screw rod, the movable sleeve slides along the axial direction of the screw rod, and the spacing between the movable sleeve and the fixed sleeve is conveniently adjusted, and multiple groups of the top core assemblies are hinged between the movable sleeve and the fixed sleeve, and the multiple groups of the top core assemblies are evenly distributed around the screw rod in the circumferential direction;

[0007] Each group of top core components includes a pull rod and a support rod. There are two pull rods, which are arranged in an "eight" shape. The lower ends of the two pull rods are respectively hinged to the movable sleeve and the fixed sleeve, and the support rod is hinged between the upper ends of the two pull rods. The support rod and the screw rod are arranged in parallel. The support rods in multiple groups of top core components are located on the same circumference, which is convenient for uniformly supporting the winding core to reset it.

[0008] Furthermore, the rear end of the screw rod is in the shape of a stepped shaft, and the inner wall of the fixed sleeve is also in the shape of a stepped shaft. The fixed sleeve is arranged at the rear end of the screw rod to prevent the fixed sleeve from moving axially. A locking bolt with a gasket is also arranged at the rear end of the screw rod to prevent the fixed sleeve from falling off.

[0009] Furthermore, the front end of the screw rod is provided with an external hexagonal column, and the screw rod can be conveniently twisted by using an electric tool with an internal hexagonal socket in combination with the external hexagonal column.

[0010] Furthermore, the fixed sleeve is provided with a plurality of ear plates 1 in the circumferential direction on the circumferential side, and the movable sleeve is provided with a plurality of ear plates 2 in the circumferential direction on the circumferential side. The number of ear plates 1, ear plates 2 and top core components is the same, and the top core components are arranged between the corresponding ear plates 1 and ear plates 2, which facilitates the hinged installation of the top core components.

[0011] Furthermore, each ear plate 1 is hinged with the pull rod, and each ear plate 2 is also hinged with the pull rod, and the two corresponding pull rods are arranged in an inclined "eight" shape, and the length direction of the support rod between the two pull rods is consistent with the axial direction of the screw rod.

[0012] Through the above technical solution, the beneficial effects of the utility model are:

[0013] The utility model has a reasonable structural design. A fixed sleeve is rotatably arranged at the rear end of the screw rod. Under the action of the step structure and the locking bolt, the fixed sleeve is prevented from axial movement and is prevented from detaching from the screw rod. A movable sleeve is engaged in front of the screw rod. The movable sleeve can be caused to move axially along the screw rod by the rotation of the screw rod, so that the spacing between the movable sleeve and the fixed sleeve can be adjusted. Multiple groups of top core assemblies are evenly arranged between the movable sleeves. The opening and closing movement of the top core assemblies can be realized by the different moving directions of the movable sleeves, so that it is easy to put into the winding core of the collapsed layer and the winding core can be easily reset.

[0014] When the utility model is used, the electric wrench is first used to rotate the screw rod to move the movable sleeve outward, and the support rod is retracted. The diameter of the circle formed by the retracted support rods is small, and can be put into the collapsed core of the winding layer. Then the electric wrench is used to rotate the screw rod in the opposite direction to open the support rod until the collapsed part of the winding core is restored. Then the staff starts to weld the winding core part. After completion, the support rods are closed and loosened, and the support tool can be taken out. The whole process reduces the difficulty of the staff's work and improves the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the core collapse of the hot rolled coil.

[0016] Figure 2 The utility model is a front view of a support tool for recovering collapsed layers of a hot-rolled coil core.

[0017] Figure 3 The utility model is a schematic diagram of the separation of a fixing sleeve and a lead screw of a supporting tool for recovering collapsed layers of a hot-rolled coil core.

[0018] Figure 4The utility model is a schematic diagram of the application state change of a support tool for recovering collapsed layers of a hot-rolled coil core.

[0019] Figure 5 The utility model is a side view of a support tool for recovering collapsed layers of a hot-rolled coil core.

[0020] The numbers in the accompanying drawings are: 1 screw rod, 2 fixed sleeve, 3 movable sleeve, 4 top core assembly, 41 pull rod, 42 support rod, 5 gasket, 6 locking bolt, 7 threaded hole, 8 external hexagonal column, 9 ear plate one, 10 ear plate two. DETAILED DESCRIPTION

[0021] The specific implementation of the utility model is described in detail below with reference to the accompanying drawings:

[0022] like Figure 2~Figure 5 As shown, a support tool for recovering the collapsed layer of a hot rolled coil core comprises a screw rod 1, a fixed sleeve 2, a movable sleeve 3 and a top core assembly 4. Figure 2 The rear end of the screw rod 1 is rotatably provided with a fixing sleeve 2, and the fixing sleeve 2 only rotates in a circle on the screw rod 1, and does not mesh with the screw rod 1, so that the fixing sleeve 2 does not produce axial movement.

[0023] In order to realize the rotation of the fixed sleeve 2 at a fixed position on the screw rod 1, the rear end of the screw rod 1 is in the shape of a stepped shaft, and no thread is provided at the rear end of the screw rod 1. At the same time, the inner wall of the fixed sleeve 2 is also in the shape of a stepped shaft, and then the fixed sleeve 2 is sleeved on the rear end of the screw rod 1, and the fixed sleeve 2 can rotate on the screw rod 1.

[0024] In order to prevent the fixing sleeve 2 from falling off, a locking bolt 6 with a gasket 5 is also provided at the rear end of the screw rod 1 to prevent the fixing sleeve 2 from falling off. Figure 3 Specifically, a threaded hole 7 is axially opened at the rear end of the screw rod 1, and a locking bolt 6 is inserted into the threaded hole 7 to realize the installation of the locking bolt 6 and the screw rod 1. A gasket 5 is sleeved on the locking bolt 6, and the outer circle of the gasket 5 is larger than the inner hole of the fixing sleeve 2. Under the limitation of the gasket 5, the fixing sleeve 2 can be prevented from moving backward and separating from the screw rod 1.

[0025] The front part of the screw rod 1 is meshed with a movable sleeve 3, which slides axially along the screw rod 1. Here, the movable sleeve 3 can move back and forth along the screw rod 1. On the basis of the fixed installation position of the fixed sleeve 2, the movable sleeve 3 can be moved by twisting the screw rod 1, and then the distance between the movable sleeve 3 and the fixed sleeve 2 can be adjusted.

[0026] In order to facilitate the turning of the screw rod 1 and adjust the spacing between the movable sleeve 3 and the fixed sleeve 2, an outer hexagonal column 8 is provided at the front end of the screw rod 1. The screw rod 1 can be directly turned by an electric wrench with an inner hexagonal socket and the outer hexagonal column 8, and the turning operation is fast and labor-saving.

[0027] Multiple groups of top core assemblies 4 are hinged between the movable sleeve 3 and the fixed sleeve 2. Here, there are three groups of top core assemblies 4, which are evenly distributed around the screw rod 1. By adjusting the spacing between the movable sleeve 3 and the fixed sleeve 2, the top core assembly 4 can be raised and lowered, and the vertical spacing between the top core assembly 4 and the screw rod 1 is changed, so that the core of the hot-rolled coil can be supported to reset the collapsed core.

[0028] Specifically, the fixed sleeve 2 is provided with a plurality of ear plates 9 in the circumferential direction of the side, and the movable sleeve 3 is provided with a plurality of ear plates 10 in the circumferential direction of the side. The number of ear plates 1 9, ear plates 2 10 and top core assembly 4 is the same, and thus the number of ear plates 1 9 and ear plates 2 10 are both three, and the top core assembly 4 is arranged between the corresponding ear plates 1 9 and ear plates 2 10.

[0029] In this embodiment, each group of top core components 4 includes a pull rod 41 and a support rod 42. There are two pull rods 41, and the two pull rods 41 are arranged in an "eight" shape. The lower ends of the two pull rods 41 are respectively hinged to the movable sleeve 3 and the fixed sleeve 2, that is, a pull rod 41 is hinged on each ear plate 9, and a pull rod 41 is also hinged on each ear plate 2 10, and the corresponding two pull rods 41 are tilted and arranged in an "eight" shape.

[0030] A support rod 42 is hinged between the upper ends of the two tie rods 41. The length direction of the support rod 42 between the two tie rods 41 is consistent with the axial direction of the screw rod 1, and the support rod 42 and the screw rod 1 are arranged in parallel. Since the three sets of top core assemblies 4 are installed between the movable sleeve 3 and the fixed sleeve 2, and thus the three sets of top core assemblies 4 are synchronously operated, the support rods 42 in the three sets of top core assemblies 4 are located on the same circumference, and can evenly support the winding core of the collapsed layer.

[0031] like Figure 4 and Figure 5 As shown, the principle of the utility model is: firstly, the screw rod 1 is turned to increase the distance between the movable sleeve 3 and the fixed sleeve 2, so that the diameter of the circle surrounded by the three support rods 42 is smaller, so the support tool can be put into the winding core of the collapsed layer. After the support tool is put in, the screw rod 1 is turned in the opposite direction to gradually reduce the distance between the movable sleeve 3 and the fixed sleeve 2, and the diameter of the circle surrounded by the three support rods 42 gradually increases until the support rods 42 abut against the winding core of the collapsed layer, so that the winding core of the collapsed layer is reset, and then the welding operation of the winding core can be carried out.

[0032] The embodiments described above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made based on the structures, features and principles described in the patent scope of the present invention should be included in the patent application scope of the present invention.

Claims

1. A support tool for hot rolling coil core collapse recovery, characterized in that: The invention comprises a screw rod (1), a fixed sleeve (2), a movable sleeve (3) and a core assembly (4), wherein the fixed sleeve (2) is rotatably arranged at the rear end of the screw rod (1), the movable sleeve (3) is meshed with the front end of the screw rod (1), the movable sleeve (3) slides axially along the screw rod (1), and a plurality of groups of core assemblies (4) are hingedly connected between the movable sleeve (3) and the fixed sleeve (2), and the plurality of groups of core assemblies (4) are evenly distributed circumferentially around the screw rod (1); Each group of top core assemblies (4) comprises a pull rod (41) and a support rod (42). There are two pull rods (41) and the two pull rods (41) are arranged in an "eight" shape. The lower ends of the two pull rods (41) are respectively hinged to the movable sleeve (3) and the fixed sleeve (2). The support rod (42) is hinged between the upper ends of the two pull rods (41). The support rod (42) and the screw rod (1) are arranged in parallel. The support rods (42) in the multiple groups of top core assemblies (4) are located on the same circumference.

2. A support tool for hot rolling coil core collapse recovery according to claim 1, characterized in that: The rear end of the screw rod (1) is in the shape of a stepped shaft, the inner wall of the fixing sleeve (2) is also in the shape of a stepped shaft, the fixing sleeve (2) is sleeved on the rear end of the screw rod (1), and a locking bolt (6) with a gasket (5) is also provided at the rear end of the screw rod (1) for preventing the fixing sleeve (2) from falling off.

3. A support tool for hot rolling coil core collapse recovery according to claim 1, characterized in that: An external hexagonal column (8) is provided at the front end of the screw rod (1).

4. A support tool for hot rolling coil core collapse recovery according to claim 1, characterized in that: The fixed sleeve (2) is provided with a plurality of ear plates (9) in the circumferential direction on the circumferential side, and the movable sleeve (3) is provided with a plurality of ear plates (10) in the circumferential direction on the circumferential side. The number of the ear plates (9), the ear plates (10) and the top core assembly (4) is the same, and the top core assembly (4) is arranged between the corresponding ear plates (9) and the ear plates (10).

5. A support tool for hot rolling coil core collapse recovery according to claim 4, characterized in that: The pull rod (41) is hinged on each ear plate one (9), and the pull rod (41) is also hinged on each ear plate two (10). The two corresponding pull rods (41) are arranged in an inclined "eight" shape, and the length direction of the support rod (42) between the two pull rods (41) is consistent with the axial direction of the screw rod (1).

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