A large-scale steel plate production uncoiling guide device

Abstract

The present application relates to the technical field of steel plate uncoiling, and discloses a large-scale steel plate production uncoiling guide device, which comprises a base, a guide rail is fixed on the base, a moving frame is slidably arranged on the guide rail, a feeding plate is fixed on the moving frame, a rack is fixed on one side of the base, a liftable lifting plate is arranged on the rack, and an uncoiling assembly is arranged on the lifting plate. The present application directly transmits the gravity from the coil to the base frame through the mechanical structure, so that the roller shaft only bears the dynamic tension in the uncoiling process. The load transfer mechanism optimizes the force mode of the roller shaft from a cantilever beam to a simply supported beam, greatly reduces the bending moment, more evenly distributes the stress, effectively avoids local plastic deformation, significantly improves the service life of the roller shaft, reduces the replacement frequency of key components, and reduces the comprehensive operation cost of the equipment.

Description

Technical Field

[0001] This invention relates to the field of steel plate uncoiling technology, and in particular to an uncoiling guide device for large steel plate production. Background Technology

[0002] The uncoiling guide device for large steel plate production is a key piece of equipment used to guide the steel coil to unfold smoothly and enter the subsequent processing steps. Its core function is to adjust the running direction of the strip steel through mechanical structure or drive mechanism to ensure that the steel coil maintains stable tension and accurate position during the uncoiling process, and avoids deviation or jamming.

[0003] A search revealed that Chinese patent CN104368629A discloses a dual-specification uncoiler, including an uncoiler base, a steel coil fixing column, and a drive mechanism. The drive mechanism includes a main shaft connected to a main shaft drive motor, which drives the main shaft to rotate, thereby rotating the steel coil fixing column. The steel coil fixing column has a first fixing part and a second fixing part, with the cross-sectional diameter of the first fixing part being larger than that of the second fixing part. This solution has the advantages of being able to fix two coils with different inner diameters and providing a good fixing effect. However, in practical use, the above solution still has the following shortcomings:

[0004] When using the above solution, the staff first transfers the coil to the main shaft. After the main shaft fixes the coil, a support structure provides support for the main shaft. However, before the support structure acts on the main shaft, the weight of the coil is entirely on the main shaft. Over time, the main shaft will bend due to bearing the weight of the coil alone. This will directly cause the strip's running trajectory to deviate during the uncoiling process, leading to edge scratches, interlayer movement, and even steel piling failure. At the same time, bending deformation will destroy the tension stability of the strip, causing surface quality defects and thickness fluctuations. Ultimately, the loss of equipment precision will lead to production interruption and an increase in product scrap rate.

[0005] Therefore, a new uncoiling guide device for large steel plate production needs to be designed to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing an uncoiling guide device for large steel plate production.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A large steel plate production uncoiling guide device includes a base, a guide rail fixed on the base, a movable frame slidably arranged on the guide rail, a feeding plate fixed on the movable frame, a machine frame fixed on one side of the base, a liftable lifting plate arranged on the machine frame, and an uncoiling assembly arranged on the lifting plate.

[0009] The unwinding assembly includes a mounting base, on which a motor is mounted. A roller shaft is fixed to the output shaft of the motor, and a fixed shaft is fixed to the end of the roller shaft away from the motor.

[0010] A mounting frame is fixed to the top of the frame, and a support assembly is provided on the mounting frame. The support assembly includes a base plate, a lifting member is fixed on the base plate, and two mounting cylinders are also fixed on the base plate. A traction device is installed on the mounting frame, and the traction end of the traction device has two branches, which are respectively connected to the two mounting cylinders.

[0011] As a preferred embodiment of the present invention, the support assembly further includes a fixing frame, which is fixed to the end of the mounting frame away from the traction device. A fixing plate is fixed on the fixing frame, and two holes are provided on the fixing plate, into which the two mounting cylinders are respectively inserted.

[0012] As a preferred embodiment of the present invention, in the initial state, the lifting member is located directly above the fixed shaft. The lifting member consists of a wheel frame and two rollers, both of which are rotatably mounted on the wheel frame.

[0013] As a preferred embodiment of the present invention, two connecting rods are fixed on the fixing frame, and a top plate is fixed to the top ends of the two connecting rods. A guide assembly is provided on the top plate, and the guide assembly includes two openings. Both openings are opened on the top plate, and a guide rod is slidably disposed in both openings. A horizontal plate is fixed to the top ends of the two guide rods, and a pull rod is fixed to the side of the horizontal plate.

[0014] As a preferred embodiment of the present invention, a fixed ring is fixedly sleeved on the pull rod, and a sliding ring is slidably sleeved on the pull rod. The fixed ring and the sliding ring are connected by a spring, and a slot is provided on the side of the cross plate.

[0015] A locking assembly is provided on the top plate to fix the position of the horizontal plate. The locking assembly includes a bracket, a first telescopic member, and a second telescopic member. The bracket is fixed on the top plate, the first telescopic member is fixed on the bracket, and a locking block is fixed to the telescopic end of the first telescopic member. The locking block is provided with an inclined surface. The second telescopic member is fixed to the side of the top plate, and the telescopic end of the second telescopic member is positioned opposite the sliding ring. The first telescopic member and the second telescopic member are connected by a connecting pipe.

[0016] As a preferred embodiment of the present invention, both the first telescopic member and the second telescopic member include a sealing cylinder, a sliding plug, a return spring, and a rod. The sliding plug is slidably connected inside the sealing cylinder, and the sliding plug and the sealing cylinder are connected by a return spring. One end of the rod is connected to the sliding plug, and the other end extends to the outside of the sealing cylinder.

[0017] As a preferred embodiment of the present invention, the shape of the card block is adapted to the shape of the card slot.

[0018] As a preferred embodiment of the present invention, a damping assembly is provided on the top plate. The damping assembly includes a vertical plate, and slots are provided at both ends of the vertical plate. A damping plate is slidably disposed in each of the two slots. The two damping plates are connected to the corresponding slots by two springs. The ends of the two damping plates that are far apart from each other extend to the outside of the corresponding slots and respectively contact the two guide rods.

[0019] As a preferred embodiment of the present invention, the side of the damping plate is in contact with the groove wall.

[0020] As a preferred embodiment of the present invention, the damping plate is provided with an arc surface that is adapted to the guide rod.

[0021] The present invention has the following beneficial effects:

[0022] 1. During the support stage, the lifting components directly transfer the weight of the coil to the base frame through the mechanical structure, so that the roller only bears the dynamic tension during the unwinding process. This load transfer mechanism optimizes the roller's stress mode from a "cantilever beam" to a "simply supported beam", which greatly reduces the bending moment, makes the stress distribution more uniform, effectively avoids local plastic deformation, significantly improves the service life of the roller, reduces the replacement frequency of key components, and lowers the overall operating cost of the equipment.

[0023] 2. The guide assembly employs a rigid fit between double guide rods and the mounting cylinder, combined with the friction adjustment function of the damping assembly, to construct a high-precision vertical motion track. The symmetrical layout and mechanical limiting effect of the double guide rods completely eliminate the horizontal component force during the lifting process of the lifting component, ensuring that its vertical displacement error is controlled within a minimal range;

[0024] 3. The damping assembly provides friction through a spring-damping plate structure to prevent the guide rod from slipping due to gravity, thus achieving flexible positioning. At the same time, the locking assembly achieves automatic fixing and rapid release of the horizontal plate position through the coordinated action of the pneumatic telescopic component and the inclined plate block. The guide rod positioning has high repeatability and effectively resists interference factors such as equipment vibration and component wear, ensuring long-term operational stability. Attached Figure Description

[0025] Figure 1This is a schematic diagram of the structure of an uncoiling guide device for large steel plate production proposed in this invention. Figure 1 ;

[0026] Figure 2 This is a schematic diagram of the structure of an uncoiling guide device for large steel plate production proposed in this invention. Figure 2 ;

[0027] Figure 3 This is a schematic diagram of the structure when the supporting component acts on the fixed shaft.

[0028] Figure 4 for Figure 3 Enlarged view of the structure at point A;

[0029] Figure 5 A structural diagram of the supporting and guiding components;

[0030] Figure 6 A cross-sectional view of the supporting and guiding components;

[0031] Figure 7 for Figure 6 Enlarged view of the structure at point B;

[0032] Figure 8 A schematic diagram of the supporting components;

[0033] Figure 9 This is a schematic diagram of the damping component.

[0034] In the diagram: 11. Base; 12. Guide rail; 13. Moving frame; 14. Feeding plate; 15. Frame; 151. Lifting plate; 21. Mounting seat; 22. Motor; 23. Roller shaft; 24. Fixed shaft; 3. Mounting frame; 31. Traction device; 41. Fixed frame; 411. Connecting rod; 412. Top plate; 42. Fixed plate; 43. Mounting cylinder; 44. Base plate; 45. Lifting component; 51. Opening; 52. Guide rod; 53. Horizontal plate; 531. Slot; 61. Pull rod; 62. Fixed ring; 63. Sliding ring; 64. Spring 1; 71. Bracket; 72. First telescopic component; 73. Locking block; 74. Second telescopic component; 75. Connecting pipe; 81. Vertical plate; 82. Slot; 83. Damping plate; 84. Spring 2. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0036] Reference Figure 1-9A large steel plate production uncoiling guide device includes a base 11, a guide rail 12 fixed on the base 11, a movable frame 13 slidably arranged on the guide rail 12, a feeding plate 14 fixed on the movable frame 13, a frame 15 fixed on one side of the base 11, a liftable lifting plate 151 arranged on the frame 15, an uncoiling assembly arranged on the lifting plate 151, the uncoiling assembly includes a mounting base 21, a motor 22 mounted on the mounting base 21, a roller 23 fixed to the output shaft of the motor 22, and a fixed shaft 24 fixed to the end of the roller 23 away from the motor 22.

[0037] A mounting frame 3 is fixed to the top of the frame 15. A support assembly is provided on the mounting frame 3. The support assembly includes a base plate 44. A lifting member 45 is fixed on the base plate 44. In the initial state, the lifting member 45 is located directly above the fixed shaft 24. The lifting member 45 consists of a wheel frame and two rollers. Both rollers are rotatably mounted on the wheel frame. Two mounting cylinders 43 are also fixed on the base plate 44. A traction device 31 is installed on the mounting frame 3. The traction end of the traction device 31 has two branches. The two branches are respectively connected to the two mounting cylinders 43. The support assembly also includes a fixing frame 41. The fixing frame 41 is fixed to the end of the mounting frame 3 away from the traction device 31. A fixing plate 42 is fixed on the fixing frame 41. Two holes are opened on the fixing plate 42. The two mounting cylinders 43 are respectively inserted into the two holes.

[0038] When using the large steel plate production uncoiling guide device proposed in this invention, the operator first hoists the coil onto the feeding plate 14, then controls the lifting plate 151 to descend. As the lifting plate 151 descends, it moves the mounting base 21 downwards, causing the roller 23 to move downwards as well. Next, the operator controls the moving frame 13 to move, causing the feeding plate 14 to carry the coil until it is fitted onto the roller 23. In this state, the coil and roller 23 do not contact each other, meaning the coil does not exert pressure on the roller 23. After adjusting the position of the coil, the operator activates the traction device 31 to release the rope. When the rope is released, the base plate 44 automatically descends under gravity, causing the lifting component 45 to descend accordingly. The operator then moves the lifting component 45 below the fixed shaft 24, while simultaneously controlling the traction device 31 to move the lifting component 45 upwards and support the fixed shaft 24. In this situation, the lifting component 45 can support the fixed shaft 24 and the roller shaft 23. Finally, the operator controls the lifting plate 151 to move upward and simultaneously controls the traction device 31 to rewind the rope, so that the lifting component 45 moves upward synchronously with the lifting plate 151. During this process, the roller shaft 23 can lift the material roll, while the lifting component 45 can always support the fixed shaft 24, preventing the roller shaft 23 from bearing the entire weight of the material roll. In summary, through the linkage design of the lifting plate 151 and the lifting component 45, this device actively cuts off the direct contact between the roller shaft 23 and the material roll during the material roll setting stage, completely eliminating the instantaneous impact of the material roll's gravity on the roller shaft 23 in traditional equipment, avoiding early plastic deformation of the roller shaft 23 due to local stress concentration, and significantly extending the service life of the roller shaft 23. It should be noted that the rope is made of steel wire rope to ensure the structural strength of the rope, so that the rope can apply a sufficiently large traction force to the bottom plate 44.

[0039] Two connecting rods 411 are fixed on the fixed frame 41. The top ends of the two connecting rods 411 are jointly fixed to a top plate 412. A guide assembly is provided on the top plate 412. The guide assembly includes two openings 51, both of which are opened on the top plate 412. A guide rod 52 is slidably disposed in each of the two openings 51. The top ends of the two guide rods 52 are jointly fixed to a horizontal plate 53. A pull rod 61 is fixed to the side of the horizontal plate 53. The outer circumferential surface of the guide rod 52 is in contact with the inner wall of the opening 51, thereby ensuring the stability of the guide rod 52 during movement and preventing the guide rod 52 from shaking.

[0040] Furthermore, the present invention designs a guide assembly to provide guidance for the lifting component 45, ensuring that the lifting component 45 can only move in the vertical direction, thus preventing the lifting component 45 from shifting position during the lifting process. Specifically, after the operator places the lifting component 45 below the fixed shaft 24, the operator pulls down the pull rod 61, causing the pull rod 61 to move the horizontal plate 53 downward. The two guide rods 52 on the horizontal plate 53 move downward accordingly until the two guide rods 52 pass through the two mounting cylinders 43 respectively. In this case, the two guide rods 52 can provide guidance to the base plate 44, ensuring that the lifting component 45 can only move in the vertical direction. Through the symmetrical layout and mechanical limiting effect of the double guide rods 52, the horizontal component force during the lifting process of the lifting component 45 is completely eliminated, ensuring that the lifting component 45 always maintains vertical displacement under the action of gravity or external force, avoiding the problems of tilting, jamming or shifting of the lifting component 45 caused by equipment vibration, component wear or operation error.

[0041] A fixing ring 62 is fixedly sleeved on the pull rod 61, and a sliding ring 63 is slidably sleeved on the pull rod 61. The fixing ring 62 and the sliding ring 63 are connected by a spring 64. A slot 531 is provided on the side of the horizontal plate 53. A locking assembly is provided on the top plate 412. The locking assembly is used to fix the position of the horizontal plate 53. The locking assembly includes a bracket 71, a first telescopic member 72, and a second telescopic member 74. The bracket 71 is fixed on the top plate 412, and the first telescopic member 72 is fixed on the bracket 71. A locking block 73 is fixed to the telescopic end of the first telescopic member 72. The shape is adapted to the shape of the slot 531. The card block 73 is provided with an inclined surface. The second telescopic member 74 is fixed to the side of the top plate 412. The telescopic end of the second telescopic member 74 is set directly opposite the sliding ring 63. The first telescopic member 72 and the second telescopic member 74 are connected by a connecting pipe 75. The first telescopic member 72 and the second telescopic member 74 both include a sealing cylinder, a sliding plug, a return spring and a rod. The sliding plug is slidably connected in the sealing cylinder. The sliding plug and the sealing cylinder are connected by a return spring. One end of the rod is connected to the sliding plug and the other end extends to the outside of the sealing cylinder.

[0042] This invention incorporates a locking assembly for locking the position of the horizontal plate 53. When the pull rod 61 moves downward, the fixed ring 62 on the pull rod 61 can drive the sliding ring 63 downward via the spring 64. As the sliding ring 63 descends, it first contacts the rod of the second telescopic member 74 and presses it down. This causes the gas inside the second telescopic member 74 to enter the first telescopic member 72 through the connecting pipe 75, thus extending the rod of the first telescopic member 72. At this time, the locking block 73 moves along with the rod of the first telescopic member 72 until the inclined surface of the locking block 73 moves to a position directly opposite the horizontal plate 53. In this state, the downward movement of the horizontal plate 53 can compress the inclined surface of the locking block 73. When the locking block 73 is compressed, it moves. When the locking groove 531 moves to a position directly opposite the locking block 73, the locking block... 73 will automatically snap into the slot 531 to fix the horizontal plate 53. When the horizontal plate 53 is fixed, the positions of the two guide rods 52 are also fixed. This design can ensure the positional stability of the two guide rods 52 and ensure the guiding effect of the two guide rods 52 on the base plate 44. When it is necessary to release the fixation of the horizontal plate 53 by the locking block 73, the operator can pull the handle on the sliding ring 63 to move the sliding ring 63 upward until the sliding ring 63 separates from the second telescopic member 74. At this time, the second telescopic member 74 lacks the squeezing effect of the sliding ring 63, and the rod in the second telescopic member 74 and the rod in the first telescopic member 72 will automatically reset. This also causes the locking block 73 to automatically reset. When the locking block 73 resets, it no longer constrains the horizontal plate 53. At this time, the operator can control the horizontal plate 53 and the two guide rods 52 to reset.

[0043] A damping assembly is provided on the top plate 412. The damping assembly includes a vertical plate 81. Both ends of the vertical plate 81 are provided with slots 82. A damping plate 83 is slidably disposed in each of the two slots 82. The side of the damping plate 83 is in contact with the groove wall of the slot 82. The damping plate 83 is provided with an arc surface that is adapted to the guide rod 52. The two damping plates 83 are connected to the corresponding slots 82 by springs 84. The ends of the two damping plates 83 that are far apart from each other extend to the outside of the corresponding slots 82 and contact the two guide rods 52 respectively.

[0044] The top plate 412 is equipped with a damping assembly for constraining the two guide rods 52. Under the action of the damping assembly, the operator can flexibly adjust the position of the two guide rods 52. The two guide rods 52 will not slide under the action of gravity. That is, when the operator adjusts the two guide rods 52 to a certain position, the guide rods 52 will not move down, but will remain stationary at that position. Specifically, under the elastic force of the two springs 84, the two damping plates 83 can always press the two guide rods 52 tightly. The pressure from the two damping plates 83 can fix the guide rods 52 and prevent the guide rods 52 from falling naturally.

[0045] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An uncoiling guide device for large steel plate production, characterized in that: Includes a base (11), on which a guide rail (12) is fixed, on which a movable frame (13) is slidably arranged, on which a feeding plate (14) is fixed, on which a frame (15) is fixed on one side of the base (11), on which a lifting plate (151) is arranged, and on which an unwinding assembly is arranged; The unwinding assembly includes a mounting base (21), on which a motor (22) is mounted. A roller (23) is fixed to the output shaft of the motor (22), and a fixed shaft (24) is fixed to the end of the roller (23) away from the motor (22). The top of the frame (15) is fixed with a mounting frame (3), and a support assembly is provided on the mounting frame (3). The support assembly includes a base plate (44), a lifting member (45) is fixed on the base plate (44), and two mounting cylinders (43) are also fixed on the base plate (44). A traction device (31) is installed on the mounting frame (3). The traction end of the traction device (31) has two branches, and the two branches are respectively connected to the two mounting cylinders (43). The support assembly also includes a fixing frame (41), which is fixed at the end of the mounting frame (3) away from the traction device (31). A fixing plate (42) is fixed on the fixing frame (41), and two holes are opened on the fixing plate (42). The two mounting cylinders (43) are respectively inserted into the two holes. Two connecting rods (411) are fixed on the fixing frame (41). The top ends of the two connecting rods (411) are jointly fixed to a top plate (412). A guide assembly is provided on the top plate (412). The guide assembly includes two openings (51). Both openings (51) are opened on the top plate (412). A guide rod (52) is slidably arranged in both openings (51). A horizontal plate (53) is jointly fixed to the top ends of the two guide rods (52). A pull rod (61) is fixed to the side of the horizontal plate (53). A fixed ring (62) is fixedly sleeved on the pull rod (61), and a sliding ring (63) is slidably sleeved on the pull rod (61). The fixed ring (62) and the sliding ring (63) are connected by a spring (64). A slot (531) is provided on the side of the horizontal plate (53). A locking assembly is provided on the top plate (412). The locking assembly is used to fix the position of the horizontal plate (53). The locking assembly includes a bracket (71), a first telescopic member (72), and a second telescopic member (74). The bracket (71) is fixed on the top plate (412). The first telescopic member (72) is fixed on the bracket (71). A locking block (73) is fixed to the telescopic end of the first telescopic member (72). An inclined surface is provided on the locking block (73). The second telescopic member (74) is fixed to the side of the top plate (412). The telescopic end of the second telescopic member (74) is set opposite to the sliding ring (63). The first telescopic member (72) and the second telescopic member (74) are connected by a connecting pipe (75). The top plate (412) is provided with a damping assembly, which includes a vertical plate (81). Both ends of the vertical plate (81) are provided with slots (82). A damping plate (83) is slidably disposed in each of the two slots (82). The two damping plates (83) are connected to the corresponding slots (82) by springs (84). The ends of the two damping plates (83) that are far apart from each other extend to the outside of the corresponding slots (82) and contact the two guide rods (52) respectively.

2. The uncoiling guide device for large steel plate production according to claim 1, characterized in that, In the initial state, the lifting member (45) is located directly above the fixed shaft (24). The lifting member (45) consists of a wheel frame and two rollers, both of which are rotatably mounted on the wheel frame.

3. The uncoiling guide device for large steel plate production according to claim 1, characterized in that, Both the first telescopic member (72) and the second telescopic member (74) include a sealing cylinder, a sliding plug, a return spring, and a rod. The sliding plug is slidably connected inside the sealing cylinder. The sliding plug and the sealing cylinder are connected by a return spring. One end of the rod is connected to the sliding plug, and the other end extends to the outside of the sealing cylinder.

4. The uncoiling guide device for large steel plate production according to claim 3, characterized in that, The shape of the card block (73) is adapted to the shape of the card slot (531).

5. The uncoiling guide device for large steel plate production according to claim 1, characterized in that, The side of the damping plate (83) is in contact with the groove wall of the slot (82).

6. The uncoiling guide device for large steel plate production according to claim 1, characterized in that, The damping plate (83) is provided with an arc surface that is compatible with the guide rod (52).

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