An inclined wedge type cold rolling reel and a coiler having the same

Abstract

The present invention discloses a wedge-type cold-rolled reel and a coiler having the same, belonging to the technical field of coiling equipment. The wedge expansion and contraction assembly of the wedge-type cold-rolled reel includes: a fixed wedge fixed on the hollow main shaft; a movable wedge that cooperates with the outer inclined surface of the fixed wedge and moves relatively, the movable wedge cooperates with the fan-shaped plate, the inner straight surface of the movable wedge is provided with an open groove for cooperating with the crosshead, the movable wedge and the fixed wedge can convert the axial force into the longitudinal force; and a first pressure component and a second pressure component respectively placed at both ends of the fan-shaped plate, the first pressure component includes a spring A and a stop sleeve applying force to the spring A, the second pressure component includes a spring B, the extension shaft applies force to the spring B, the spring A and the spring B respectively provide pressure for the downward movement of the fan-shaped plate when the diameter is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of coiling equipment, and more particularly, relates to an inclined wedge-type cold-rolled coil and a coiler having the coil. Background Art

[0002] The cold rolling coiler is a key piece of equipment in a cold-rolled strip production line. Its function is to roll the cold-rolled steel strip into a drum for storage and transportation. As a key component of the coiler, the drum directly affects the coiler's service life and the quality of the coiled strip.

[0003] Because cold-rolled coils are typically used for over 18 months at a time, regular online replacement of wearing parts is required, as well as cleaning of internal carbon deposits and oil stains. Current wedge-type cold-rolled coils are difficult to dismantle on-site, and replacing wearing parts like springs is also challenging, requiring specialized tooling and specialized personnel.

[0004] In order to solve the above problems, after searching, Chinese patent CN211444556U discloses a spring-loaded reel with an integrated shaft structure at both ends, including a core shaft, which in turn includes a transmission connection section connected to a hydraulic cylinder, an expansion and contraction section, and a support tail section connected to a support sleeve; a through hole for installing a pull rod is provided in the core shaft, and a crosshead is installed at the end of the pull rod; the four shift forks of the crosshead are respectively inserted into the plug-in slot provided at the bottom of the axial wedge through the installation holes provided at the end of the straight slot; a fan-shaped plate is installed above the axial wedge, and the four fan-shaped plates are assembled into a cylindrical shape; connecting protrusions are provided at both ends of the fan-shaped plate, and a disc spring groove for installing a support spring group is provided in the connecting protrusion; a front sleeve or thrust ring for limiting the movement of the fan-shaped plate is provided above the spring groove. However, through analyzing the structure of the above patent, when the fan-shaped plate shrinks in diameter, the fan-shaped plate cannot form a full circle, that is, there is a large gap, which causes indentations when winding thin strips. Summary of the Invention

[0005] 1. Problem to be solved

[0006] In response to the technical problems existing in the prior art, the present invention provides a wedge-type cold-rolled coil, so that the top surface of the movable wedge and the outer surface of the fan-shaped plate form a full circle, reducing the indentation caused by winding the thin strip and ensuring that the quality of the thin strip meets the requirements.

[0007] Another object of the present invention is to provide a coiler having the above-mentioned cold-rolled coil.

[0008] 2. Technical solution

[0009] In order to solve the above problems, the technical solutions adopted by the present invention are as follows:

[0010] The first aspect of the present invention provides a wedge-type cold-rolled coil, comprising a hollow main shaft, a sector plate, a wedge expansion and contraction assembly, a connecting assembly, a crosshead and a support assembly, wherein the support assembly includes an extension shaft, which serves as a support point during operation, and the wedge expansion and contraction assembly includes: a fixed wedge fixed to the hollow main shaft; a movable wedge that cooperates with the outer inclined surface of the fixed wedge and moves relatively, the movable wedge cooperates with the sector plate, the inner straight surface of the movable wedge is provided with an open groove for cooperating with the crosshead, and the movable wedge and the fixed wedge can convert an axial force into a longitudinal force; since the movable wedge and the fixed wedge are both provided with inclined surfaces, and the upper part of the movable wedge is in contact with the sector plate assembly, the movable wedge will move up and down simultaneously with the axial movement, thereby driving the sector plate to move up and down, thereby realizing the expansion and contraction of the coil;

[0011] And a first pressure component and a second pressure component are respectively placed at both ends of the fan-shaped plate. The first pressure component includes a spring A and a stopper sleeve that applies force to the spring A. The second pressure component includes a spring B, which is applied by an extension shaft to the spring B. The springs A and B respectively provide pressure for the downward movement of the fan-shaped plate when the diameter is reduced. The elastic force of the spring A is less than the elastic force of the spring B. For example, when the elastic force of spring A and spring B are designed to be the same, [spring A] + H = [spring B], where [spring A] and [spring B] represent the length of the spring tension, respectively, and H represents the thickness, whose value is 1-3mm.

[0012] The inclined wedge expansion and contraction assembly of the present invention is in planar contact with the fan plate. When the drum shrinks, the fan plate cannot be contracted without external force. By setting the first pressure component and the second pressure component, the connection between the fan plate and the hollow main shaft is ensured, and the expansion and contraction of the drum is smoothly achieved.

[0013] According to any embodiment of the first aspect of the present invention, the stopper sleeve is fixedly mounted on the hollow main shaft, the stopper sleeve is provided with a first through hole for passing the spring A, the first through hole is matched with a first gland that provides a force application surface for the spring A, wherein the first gland is fixed in at least one of the following ways:

[0014] 1) The first gland is circular in shape, with an internal thread provided on the inner wall of the first through hole, and an external thread provided on the lower end surface of the first gland that engages with the internal thread to compress the spring A;

[0015] 2) The first pressure cover is circular in shape, and through holes are set around the circular pressure cover for setting screws. During normal use, since the first pressure cover is far away from the support point and will generate large vibrations when winding, it is easy to cause the threads of the first pressure cover to loosen. The use of screws can effectively reduce the loosening of the first pressure cover.

[0016] According to any embodiment of the first aspect of the present invention, the extension shaft is mounted on the end surface of the hollow main shaft through a screw hole, a second through hole for passing a spring B is formed on the extension shaft, and the second through hole is equipped with a second gland that provides a force-applying surface for the spring B; wherein the first gland is fixed in at least one of the following ways:

[0017] 1) The second gland is circular in shape, with an internal thread provided on the inner wall of the second through hole, and an external thread provided on the lower end surface of the second gland that engages with the internal thread to compress the spring B;

[0018] 2) The second gland is circular in shape, and through holes are provided around the circular gland for arranging screws.

[0019] According to any embodiment of the first aspect of the present invention, the hollow main shaft includes an expansion and contraction section, wherein the outer surface of the expansion and contraction section is provided with radially spaced wedge mounting grooves and T-slots; an escape notch is provided on the outer surface of the rear end of the expansion and contraction section, and mounting screw holes are provided on the end surface. The inner straight surface of the fixed wedge is fixed within the wedge mounting groove of the hollow main shaft, and its outer inclined surface mates with the inner inclined surface of the movable wedge, and the outer straight surface of the movable wedge mates with the sector plate.

[0020] According to any embodiment of the first aspect of the present invention, the fan-shaped plate includes a plate body and a connecting protrusion located on one side of the plate body, a first slot for installing a spring A is provided on the other side of the plate body relative to the connecting protrusion, a second slot for installing a spring B is provided on the connecting protrusion and is located on the same straight line as the first slot, and a hook head that matches the T-slot is provided at the lower part of the plate body, one end of the hook head is at a distance X from the end face of the fan-shaped plate, and the other end rests on the connecting protrusion. The function of the hook head is that when the reel is installed with the fan-shaped plate, each set of fan-shaped plates will rotate to the side or bottom after installation to prevent the fan-shaped plates from falling off, thereby playing a protective role. The T-slot arranged on the main shaft and the hook head arranged on the fan-shaped plate must ensure that the reel does not interfere with the diameter expansion position, otherwise it will affect the expansion and contraction of the reel.

[0021] According to any embodiment of the first aspect of the present invention, copper plates A are arranged on both sides of the hook head, with a thickness of 0.5-2 mm. Positioning blocks are provided at both ends of the fixed cam, and the positioning blocks are fixed to the hollow main shaft. Because the fixed cam and positioning blocks are mounted at the bottom of the hollow main shaft and do not move, the spool can be frequently disassembled for maintenance on site without requiring removal of the fixed cam and positioning blocks, allowing for direct cleaning, significantly reducing disassembly and assembly time.

[0022] According to any embodiment of the first aspect of the purpose of the present invention, the connecting assembly includes a pull rod, an oil cup, an oil pipe, a locking nut and a positioning key that are inserted into the inner hole of the hollow main shaft, and a crosshead is installed at the end of the pull rod; the end of the pull rod is arranged with a thread, and an oil hole is arranged inside, the oil pipe is installed at the end of the pull rod through a thread, the oil cup is installed at the end of the oil pipe, and the pull rod is arranged with a radial oil hole at the crosshead installation position, and dry oil can be injected into the crosshead installation position of the pull rod through the oil cup; the pull rod is connected to the crosshead through a positioning key and a locking nut.

[0023] According to any implementation scheme of the first aspect of the present invention, eight copper plates B are arranged on both sides of the four protruding positions of the crosshead, and the thickness of the copper plates B is 0.5-2 mm; oil holes are provided inside the crosshead, and dry oil can lubricate the friction surfaces of the eight copper plates B.

[0024] According to any embodiment of the first aspect of the present invention, the support assembly further comprises a bearing, a support sleeve, an end cover and a pressure plate, and the bearing, support sleeve, end cover and pressure plate are sequentially mounted on the end of the extension shaft.

[0025] A second aspect of the present invention provides a coiler comprising the inclined wedge-type cold-rolled coil described in the first aspect.

[0026] The working principle of the present invention is: when the expansion and contraction cylinder drives the pull rod to move to the left, the pull rod drives the movable wedge to move to the left through the cross head, and the movable wedge pushes the sector plate to expand, thereby realizing the expansion of the reel; when the expansion and contraction cylinder drives the pull rod to move to the right, the pull rod drives the wedge to move to the left through the cross head, the wedge assembly will shrink, and the sector plate will shrink inward under the action of spring A and spring B, thereby realizing the reduction of the reel.

[0027] 3. Beneficial effects

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] (1) The inclined wedge cold rolling reel of the present invention moves the inclined wedge outward to fill the gap between the fan-shaped plates. The top surface of the movable inclined wedge and the outer surface of the fan-shaped plates form a complete circle, thereby avoiding or reducing the indentation caused by the coiled thin strip, thereby ensuring that the quality of the thin strip meets the requirements;

[0030] (2) The wedge-type cold-rolled reel of the present invention has a fixed wedge arranged on a hollow main shaft and does not move, and does not need to be disassembled for on-site maintenance; the shrinkage of the fan-shaped plate of the reel is controlled by springs A and B at both ends, which is convenient for disassembly; in addition, the efficiency of the reel in the maintenance and inspection link is improved, a large amount of reel disassembly time is saved, the structure is simple, and maintenance is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The technical solutions of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that these drawings are designed for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, unless otherwise specified, these drawings are intended only to conceptually illustrate the structures described herein and are not necessarily drawn to scale.

[0032] Figure 1 This is a schematic structural diagram of the inclined wedge type cold rolling reel of the present invention;

[0033] Figure 2 This is a cross-sectional view of the reduced diameter (small circle) of the inclined wedge type cold rolled coil of the present invention. Figure 1 ;

[0034] Figure 3 This is a cross-sectional view of the reduced diameter (small circle) of the inclined wedge type cold rolled coil of the present invention. Figure 2 ;

[0035] Figure 4 This is a cross-sectional view of the expanded diameter (large circle) of the inclined wedge type cold rolling coil of the present invention. Figure 1 ;

[0036] Figure 5 This is a cross-sectional view of the expanded diameter (large circle) of the inclined wedge type cold rolling coil of the present invention. Figure 2 ;

[0037] Figure 6 This is a schematic diagram of the hollow main shaft structure of the inclined wedge type cold rolling reel of the present invention;

[0038] Figure 7 This is a schematic diagram of the retaining sleeve structure of the inclined wedge type cold rolling coil of the present invention Figure 1 ;

[0039] Figure 8 This is a schematic diagram of the retaining sleeve structure of the inclined wedge type cold rolling coil of the present invention Figure 2 ;

[0040] Figure 9 This is a schematic diagram of the support assembly structure of the inclined wedge type cold rolling coil of the present invention Figure 1 ;

[0041] Figure 10 This is a schematic diagram of the support assembly structure of the inclined wedge type cold rolling coil of the present invention Figure 2 ;

[0042] Figure 11 This is a schematic diagram of the fan-shaped plate assembly structure of the inclined wedge cold rolling coil of the present invention Figure 1 ;

[0043] Figure 12 This is a schematic diagram of the fan-shaped plate assembly structure of the inclined wedge cold rolling coil of the present invention Figure 2 ;

[0044] Figure 13This is a schematic diagram of the movable wedge and fixed wedge structure of the wedge-type cold-rolled coil of the present invention;

[0045] Figure 14 This is a schematic diagram of the connection assembly structure of the inclined wedge type cold rolling reel of the present invention;

[0046] Figure 15 This is a schematic diagram of the crosshead structure of the inclined wedge type cold rolling coil of the present invention Figure 1 ;

[0047] Figure 16 This is a schematic diagram of the crosshead structure of the inclined wedge type cold rolling coil of the present invention Figure 2 ;

[0048] Figure 17 Schematic diagram of the structure of spring A and spring B of the inclined wedge type cold rolling reel of the present invention;

[0049] Figure 18 This is a schematic diagram of the structure of the extension shaft and hydraulic hose of the invention of the inclined wedge type cold rolling reel;

[0050] Description of reference numerals:

[0051] 100, hollow main shaft; 110, expansion and contraction section; 111, wedge mounting slot; 112, T-slot; 113, avoidance notch; 114, mounting screw hole;

[0052] 200, fan-shaped plate; 210, plate body; 211, first slot; 212, hook; 213, copper plate A; 220, connecting protrusion; 221, second slot;

[0053] 300, wedge expansion and contraction assembly; 310, fixed wedge; 320, movable wedge; 321, opening slot; 330, first pressure component; 331, spring A; 332, stopper; 333, first through hole; 334, first gland; 340, second pressure component; 341, spring B; 350, positioning block;

[0054] 400, connecting assembly; 410, tie rod; 411, radial oil hole; 420, oil cup; 430, oil pipe; 440, locking nut; 450, positioning key;

[0055] 500, crosshead; 510, copper plate B; 520, oil passage hole;

[0056] 600, support assembly; 610, extension shaft; 611, second through hole; 612, second pressure cover; 613, groove; 614, hydraulic hose; 620, bearing; 630, support sleeve; 640, end cover; 650, pressure plate. DETAILED DESCRIPTION

[0057] The following detailed description of exemplary embodiments of the present invention refers to the accompanying drawings, which form a part of the description, and in which exemplary embodiments of the present invention that can be implemented are shown as examples. Although these exemplary embodiments are described in sufficient detail to enable those skilled in the art to implement the present invention, it should be understood that other embodiments can be implemented and various changes can be made to the present invention without departing from the spirit and scope of the present invention. The following more detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but is merely for illustration and does not limit the description of the features and characteristics of the present invention, so as to propose the best way to perform the present invention and be sufficient to enable those skilled in the art to implement the present invention. Therefore, the scope of the present invention is limited only by the appended claims.

[0058] The following detailed description of the present invention and example embodiments may be better understood with reference to the accompanying drawings, in which elements and features of the present invention are identified by reference numerals.

[0059] Combine Figures 1 to 18 As shown, the inclined wedge type cold rolling reel of this embodiment includes a hollow main shaft 100 , a sector plate 200 , an inclined wedge expansion and contraction assembly 300 , a connecting assembly 400 , a crosshead 500 and a support assembly 600 .

[0060] Among them, such as Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 13 As shown, the cam expansion and contraction assembly 300 includes a fixed cam 310, a movable cam 320, and a first pressure member 330 and a second pressure member 340, respectively, positioned at either end of the sector plate 200. The fixed cam 310 is fixed to the hollow main shaft 100; the movable cam 320 engages with the outer inclined surface of the fixed cam 310 and moves relative thereto. The movable cam 320 engages the sector plate 200, and the inner straight surface of the movable cam 320 defines an open slot 321 for engaging the crosshead 500. The movable cam 320 and the fixed cam 310 can convert axial forces into longitudinal forces.

[0061] Since both the movable wedge 320 and the fixed wedge 310 are provided with inclined surfaces, and the upper portion of the movable wedge 320 contacts the fan plate 200 assembly, the movable wedge 320 will move up and down while moving axially, thereby driving the fan plate 200 to move up and down, thereby realizing the expansion and contraction of the reel.

[0062] In this embodiment, Figure 3 and Figure 5In the figure, the first pressure component 330 includes a spring A331 and a stop sleeve 332 that applies force to the spring A331, and the second pressure component 340 includes a spring B341, which is applied by the extension shaft 610. The spring A331 and the spring B341 respectively provide pressure for the downward movement of the fan plate 200 when the diameter is reduced.

[0063] The working principle of the present invention is as follows: when the expansion and contraction cylinder drives the pull rod 410 to move leftward, the pull rod 410 drives the movable wedge 320 to move leftward through the crosshead 500, and the movable wedge 320 pushes the sector plate 200 to expand, thereby expanding the reel; when the expansion and contraction cylinder drives the pull rod 410 to move rightward, the pull rod 410 drives the wedge to move leftward through the crosshead 500, and the wedge assembly contracts. The sector plate 200 contracts inward under the action of springs A331 and B341, thereby reducing the reel. The wedge expansion and contraction assembly 300 of the present invention is in planar contact with the sector plate 200. When the reel is reduced, without the action of an external force, the sector plate 200 cannot be reduced. By providing the first pressure component 330 and the second pressure component 340, the connection between the sector plate 200 and the hollow main shaft 100 is ensured, and the expansion and reduction of the reel are smoothly achieved.

[0064] According to the on-site use, it is found that when the fan-shaped plate 200 near the end of the support assembly 600 is reduced in diameter, it cannot form a full circle, that is, there is a large gap, which causes indentations when the thin strip is wound. Therefore, if Figure 17 As shown, the inventors obtained through a large number of experiments that the elastic force of the spring A331 is smaller than the elastic force of the spring B341, [spring A] + H = [spring B], [spring A] and [spring B] respectively represent the length of the spring tension, and H represents the thickness, whose value is 1-3 mm.

[0065] For the above-mentioned elastic force compensation (mainly through H thickness compensation), the thickness of H can be increased by using a gasket, which is attached to the inner side of the second pressure cover 612, and the spring B performs elastic force compensation through the gasket.

[0066] In addition, if Figure 18 As shown, the purpose of elastic force compensation is to increase the elastic force of spring B. Based on this, the inventors of the present invention have made adjustments to the structure by providing a groove 613 on the outer ring of the extension shaft 610, and a notch on the inner side of the second pressure cover 612 to cooperate with the groove 613. A hydraulic hose 614 is provided in the groove 613. The maximum diameter of the hydraulic hose 614 is 3 mm and complies with the provisions of DIN EN853, SAE J517, GB / T 3683-2011, ISO1436 and other standards. The hydraulic hose 614 is connected to the hydraulic system of the reel, and when the reel shrinks, hydraulic oil is provided to the hydraulic hose 614, so that the hydraulic hose 614 swells, thereby providing H thickness compensation for the spring B.

[0067] After comparison in use, it was found that the elastic compensation structure of the present invention can not only effectively prevent the deviation of the strip steel, but also greatly improve the forming efficiency of the strip coil; the movable inclined wedge 320 extends outward to fill the gap between the fan-shaped plates, and the top surface of the movable inclined wedge 320 and the outer surface of the fan-shaped plate form a complete circle, and no indentation will be generated when winding the thin strip, ensuring that the quality of the thin strip meets the requirements; the winding stability is high, the service life of the coiler is long, the noise is low, and the impact resistance is improved.

[0068] like Figure 7 and Figure 8 As shown, the stopper sleeve 332 is fixedly mounted on the hollow main shaft 100. The stopper sleeve 332 is provided with a first through hole 333 for passing the spring A331. The first through hole 333 is matched with a first pressure cover 334 that provides a force application surface for the spring A331. The first pressure cover 334 is fixed in at least one of the following ways:

[0069] 1) The first pressure cover 334 is circular in shape, and an internal thread is provided on the inner wall of the first through hole 333. The lower end surface of the first pressure cover 334 is provided with an external thread that engages with the internal thread to compress the spring A331;

[0070] 2) The first pressure cover 334 is circular in shape, and through holes are set around the circular pressure cover for setting screws. During normal use, since the first pressure cover 334 is far away from the support point and will generate large vibrations when winding, it is easy to cause the threads of the first pressure cover 334 to loosen. The use of screws can effectively reduce the loosening of the first pressure cover 334.

[0071] like Figure 9 and Figure 10 As shown, the support assembly 600 includes an extension shaft 610, a bearing 620, a support sleeve 630, an end cap 640, and a pressure plate 650. The bearing 620, support sleeve 630, end cap 640, and pressure plate 650 are sequentially mounted at the end of the extension shaft 610. The support assembly 600 serves as a support point during operation, ensuring the stability of the reel during operation.

[0072] Furthermore, the extension shaft 610 is mounted on the end face of the hollow main shaft 100 through a screw hole. The extension shaft 610 is provided with a second through hole 611 for passing the spring B341. The second through hole 611 is equipped with a second pressure cover 612 that provides a force application surface for the spring B341. The first pressure cover 334 is fixed in at least one of the following ways:

[0073] 1) The second gland 612 is circular in shape, with an internal thread provided on the inner wall of the second through hole 611, and an external thread provided on the lower end surface of the second gland 612 that engages with the internal thread, thereby compressing the spring B341;

[0074] 2) The second gland 612 is circular in shape, and through holes are provided around the circular gland for setting screws.

[0075] In this embodiment, Figure 6 As shown, the hollow spindle 100 includes an expansion and contraction section 110, on the outer surface of which are radially spaced apart wedge mounting grooves 111 and T-slots 112. A relief notch 113 is provided on the outer surface of the rear end of the expansion and contraction section 110, and mounting screw holes 114 are provided on the end surface. The inner straight surface of the fixed wedge 310 is fixed within the wedge mounting groove 111 of the hollow spindle 100, and its outer inclined surface mates with the inner inclined surface of the movable wedge 320. The outer straight surface of the movable wedge 320 mates with the sector plate 200.

[0076] like Figure 11 and Figure 12 As shown, the fan-shaped plate 200 includes a plate body 210 and a connecting protrusion 220 located on one side of the plate body 210, and a first slot hole 211 for installing a spring A331 is provided on the other side of the plate body 210 relative to the connecting protrusion 220, and a second slot hole 221 for installing a spring B341 is provided on the connecting protrusion 220 and is located on the same straight line as the first slot hole 211, and a hook head 212 is provided at the lower part of the plate body 210 to cooperate with the T-slot 112, one end of the hook head 212 is at a distance X from the end face of the fan-shaped plate 200, and the other end rests on the connecting protrusion 220.

[0077] The hooks 212 are designed to prevent the panels 200 from falling off by rotating each set of panels 200 to the side or bottom when the reel is installed. The T-slots 112 on the spindle and the hooks 212 on the panels 200 ensure that the reel does not interfere with the expansion position, otherwise the expansion and contraction of the reel will be affected.

[0078] Further, such as Figure 12 As shown, copper plates A213 with a thickness of 0.5-2 mm are arranged on both sides of the hook head 212. Positioning blocks 350 are provided at both ends of the fixed wedge 310, and the positioning blocks 350 are fixed to the hollow main shaft 100. Because the fixed wedge 310 and positioning blocks 350 are mounted on the bottom of the hollow main shaft 100 and do not move, the fixed wedge 310 and positioning blocks 350 do not need to be removed for frequent on-site maintenance of the reel, and can be directly cleaned, significantly saving disassembly and assembly time.

[0079] Further, such as Figure 14As shown, the connecting assembly 400 includes a pull rod 410, an oil cup 420, an oil pipe 430, a locking nut 440 and a positioning key 450 that are inserted into the inner hole of the hollow main shaft 100, and a crosshead 500 is installed at the end of the pull rod 410; the end of the pull rod 410 is arranged with a thread, and an oil hole is arranged inside, the oil pipe 430 is installed at the end of the pull rod 410 through a thread, and the oil cup 420 is installed at the end of the oil pipe 430, and the pull rod 410 is arranged with a radial oil hole 411 at the installation position of the crosshead 500, and dry oil can be injected into the installation position of the crosshead 500 of the pull rod 410 through the oil cup 420; the pull rod 410 is connected to the crosshead 500 through the positioning key 450 and the locking nut 440.

[0080] In addition, combined Figure 15 and Figure 16 As shown, eight copper plates B510 are arranged on both sides of the four protruding positions of the crosshead 500, and the thickness of the copper plates B510 is 0.5-2 mm; an oil hole 520 is provided inside the crosshead 500, and dry oil can lubricate the friction surfaces of the eight copper plates B510.

[0081] When the reel is shut down for a short time for maintenance, the oil cup 420 is manually filled with oil, and the dry oil flows along the oil hole in the pull rod 410 and flows into the eight copper plate sections installed on the crosshead 500 to achieve the purpose of lubrication.

[0082] The above-mentioned inclined wedge-type cold-rolled coil is applied to the coiler. In the strip steel continuous rolling production, the above-mentioned inclined wedge-type cold-rolled coiler provides the unit with constant front tension and stable coiling speed, as well as the production technical requirements for ensuring good coil shape of the strip.

[0083] The above is a schematic description of the present invention and its embodiments, which is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by this and, without departing from the purpose of the present invention, designs a structure and embodiment similar to this technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. A wedge-type cold-rolled coil, comprising a hollow main shaft (100), a sector plate (200), a wedge expansion and contraction assembly (300), a connecting assembly (400), a crosshead (500), and a support assembly (600), wherein the support assembly (600) comprises an extension shaft (610), and the extension shaft (610) is mounted on the end face of the hollow main shaft (100) through a screw hole; the wedge expansion and contraction assembly (300) comprises: A fixed bevel wedge (310) fixed on the hollow main shaft (100); a movable bevel wedge (320) that cooperates with the outer bevel of the fixed bevel wedge (310) and moves relatively, the movable bevel wedge (320) cooperates with the fan-shaped plate (200), the inner straight surface of the movable bevel wedge (320) is provided with an open groove (321) for cooperating with the crosshead (500), the movable bevel wedge (320) and the fixed bevel wedge (310) can convert the axial force into the longitudinal force; the connecting assembly (400) includes a pull rod (410) passing through the inner hole of the hollow main shaft (100), and a crosshead (500) is installed at the end of the pull rod (410); it is characterized in that The invention also includes a first pressure component (330) and a second pressure component (340) respectively disposed at both ends of the sector plate (200), wherein the first pressure component (330) includes a spring A (331) and a stopper sleeve (332) applying force to the spring A (331), and the second pressure component (340) includes a spring B (341), which is applied by an extension shaft (610) to the spring B (341), wherein the elastic force of the spring A (331) is smaller than the elastic force of the spring B (341), and the spring A (331) and the spring B (341) respectively provide pressure for the downward movement of the sector plate (200) when the diameter is reduced.

2. The inclined wedge type cold rolling coil according to claim 1, characterized in that: The stop sleeve (332) is fixedly mounted on the hollow main shaft (100), and a first through hole (333) for passing the spring A (331) is provided on the stop sleeve (332), and the first through hole (333) is matched with a first pressure cover (334) for providing a force application surface for the spring A (331).

3. The inclined wedge type cold rolling coil according to claim 1 or 2, characterized in that: The extension shaft (610) is provided with a second through hole (611) for passing a spring B (341), and the second through hole (611) is matched with a second pressure cover (612) for providing a force application surface for the spring B (341).

4. The inclined wedge type cold rolling coil according to claim 1, characterized in that: The hollow main shaft (100) comprises an expansion and contraction section (110), wherein an inclined wedge mounting groove (111) and a T-shaped groove (112) are arranged at intervals along a radial direction on the outer surface of the expansion and contraction section (110); an avoidance notch (113) is provided on the outer surface of the tail portion of the expansion and contraction section (110), and a mounting screw hole (114) is provided on the end surface.

5. The inclined wedge type cold rolling coil according to claim 4, characterized in that: The fan-shaped plate (200) includes a plate body (210) and a connecting protrusion (220) located on one side of the plate body (210), a first slot hole (211) for installing a spring A (331) is provided on the other side of the plate body (210) relative to the connecting protrusion (220), a second slot hole (221) for installing a spring B (341) is provided on the connecting protrusion (220) and is located on the same straight line as the first slot hole (211), and a hook head (212) that cooperates with the T-slot (112) is provided at the lower part of the plate body (210).

6. The inclined wedge type cold rolling coil according to claim 5, characterized in that: Copper plates A (213) are arranged on both sides of the hook head (212); positioning blocks (350) are provided at both ends of the fixed wedge (310), and the positioning blocks (350) are fixed on the hollow main shaft (100).

7. The inclined wedge type cold rolling coil according to claim 6, characterized in that: The connecting assembly (400) further includes an oil cup (420), an oil pipe (430), a locking nut (440) and a positioning key (450); the oil pipe (430) is installed on the end of the pull rod (410) through a thread, the oil cup (420) is installed on the end of the oil pipe (430), and the pull rod (410) is provided with a radial oil hole (411) at the installation position of the cross head (500); the pull rod (410) is connected to the cross head (500) through the positioning key (450) and the locking nut (440).

8. The inclined wedge type cold rolling coil according to claim 7, characterized in that: Copper plates B (510) are arranged on both sides of four protruding positions of the crosshead (500); and oil passage holes (520) are provided inside the crosshead (500).

9. The inclined wedge type cold rolling coil according to claim 8, characterized in that: The support assembly (600) further comprises a bearing (620), a support sleeve (630), an end cover (640) and a pressure plate (650), wherein the bearing (620), the support sleeve (630), the end cover (640) and the pressure plate (650) are sequentially mounted on the end of the extension shaft (610).

10. A coiling machine, characterized in that: The invention comprises the inclined wedge-type cold-rolled coil as described in any one of claims 1 to 9.

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