A mandrelless uncoiling auxiliary device for hot steel coils

Abstract

This utility model relates to a mandrel-less uncoiling auxiliary device for hot-rolled steel coils, belonging to the field of hot-rolled steel coil technology in the metallurgical industry. The technical solution includes a ground roller (2), a steel coil (3), an upper baffle (4), a lower baffle (5), a shearing machine, a guide pressure roller (10), and a conveyor roller table (12). The shearing machine, the ground roller (2), and the steel coil (3) on the ground roller (2) are located on one side of the conveyor roller table (12). The upper baffle (4) and the lower baffle (5) are located between the shearing machine and the ground roller (2). The guide pressure roller (10) is located diagonally above the conveyor roller table (12), and the steel coil (3) on the ground roller (2) is located diagonally below the conveyor roller table (12). The feature is that a clamp (6) driven by a hydraulic cylinder (11) is set between the upper baffle (4) and the lower baffle (5). The beneficial effect of this utility model is that by using the clamp to assist in uncoiling, the success rate of uncoiling is greatly improved, and the coil head can be prevented from hitting the baffle and folding.

Description

Technical Field

[0001] This utility model relates to an auxiliary device for uncoiling hot steel coils without a mandrel, belonging to the technical field of surface quality inspection of hot-rolled steel coils after they come off the production line in the metallurgical industry. Background Technology

[0002] Hot-rolled steel coils are typically equipped with surface inspection systems to achieve 100% inspection of the strip surface. To ensure accuracy, manual sampling of the actual coils is required for verification. After hot-rolled steel coils come off the production line, their surface and dimensions need to be sampled for inspection. To obtain inspection results as quickly as possible, they are directly sent to the inspection line for uncoiling inspection while still hot. The inspection line is typically equipped with an uncoiler, a shearing machine, and an inspection platform. Uncoiling methods include top uncoiling and bottom uncoiling. In top uncoiling, the upper surface of the strip faces upwards, and in bottom uncoiling, the lower surface of the strip faces upwards. Uncoiling machines are available in two types: with a mandrel and without a mandrel.

[0003] The most commonly used method in hot-rolled inspection lines is the mandrel-less bottom uncoiling method, where the ground roller rotates to uncoil the steel coil, and the strip slides along the baffle into the inspection platform. This method is highly efficient, and bottom uncoiling can check for any scraping of the strip by the roller conveyor. However, hot steel coils have relatively low strength, and during uncoiling, the strip head often jams and folds when it hits the baffle, leading to uncoiling failures. Daily statistics show an uncoiling failure rate of up to 30%. Utility Model Content

[0004] The purpose of this invention is to provide a mandrel-less uncoiling auxiliary device for hot steel coils. By using clamps to assist in uncoiling, the success rate of uncoiling is greatly improved, and the device can prevent the coil head from hitting the baffle and folding, thus solving the problems existing in the background technology.

[0005] The technical solution of this utility model is:

[0006] A mandrelless uncoiling auxiliary device for hot steel coils includes a ground roller, a steel coil, an upper baffle, a lower baffle, a shearing machine, a guide pressure roller, and a conveyor roller table. The shearing machine, the ground roller, and the steel coil on the ground roller are located on one side of the conveyor roller table. The upper baffle and the lower baffle are located between the shearing machine and the ground roller. The guide pressure roller is located diagonally above the conveyor roller table, and the steel coil on the ground roller is located diagonally below the conveyor roller table. The upper baffle, the lower baffle, and the guide pressure roller cooperate with the strip steel. A clamp driven by a hydraulic cylinder is set between the upper baffle and the lower baffle.

[0007] The cylinder barrel of the hydraulic cylinder is fixed on the bracket, and the piston rod of the hydraulic cylinder is connected to the clamp drive.

[0008] The clamps engage with the head of the steel coil.

[0009] The cylinder barrel of the hydraulic cylinder is located above the conveyor roller conveyor.

[0010] The beneficial effects of this invention are: by clamping the strip head with clamps, the rotating rollers uncoil while the piston rod retracts to pull the strip forward, preventing the strip head from hitting the baffle and folding. The strip's movement is changed from a single pushing action to a combined pulling and pushing action, and the clamps assist in uncoiling, greatly improving the uncoiling success rate. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the isometric structure of this utility model;

[0013] In the diagram: 1. Coil transport trolley; 2. Ground roller; 3. Steel coil; 4. Upper baffle; 5. Lower baffle; 6. Clamp; 7. Upper blade of the shearing machine; 8. Lower blade of the shearing machine; 9. Piston rod; 10. Guide pressure roller; 11. Hydraulic cylinder; 12. Conveyor roller conveyor. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and examples.

[0015] See attached document Figure 1-2 A hot steel coil uncoiling auxiliary device without a mandrel includes a ground roller 2, a steel coil 3, an upper baffle 4, a lower baffle 5, a shearing machine, a guide pressure roller 10, and a conveyor roller table 12. The shearing machine, the ground roller 2, and the steel coil 3 on the ground roller 2 are located on one side of the conveyor roller table 12. The upper baffle 4 and the lower baffle 5 are located between the shearing machine and the ground roller 2. The guide pressure roller 10 is located diagonally above the conveyor roller table 12, and the steel coil 3 on the ground roller 2 is located diagonally below the conveyor roller table 12. The upper baffle 4, the lower baffle 5, and the guide pressure roller 10 cooperate with the strip steel. A clamp 6 driven by a hydraulic cylinder 11 is provided between the upper baffle 4 and the lower baffle 5.

[0016] In this embodiment, refer to the appendix Figure 1-2 The uncoiling auxiliary device includes a coil transport trolley 1, a ground roller 2, a steel coil 3, an upper baffle 4, a lower baffle 5, a clamp 6, a shearing machine, a guide pressure roller 10, a hydraulic cylinder 11, and a conveyor roller table 12. The coil transport trolley 1, ground roller 2, steel coil 3, upper baffle 4, lower baffle 5, shearing machine, guide pressure roller 10, and conveyor roller table 12 are all existing uncoiling equipment in this technical field. The shearing machine includes an upper shearing blade 7 and a lower shearing blade 8. The innovation of this utility model is that a clamp 6 driven by a hydraulic cylinder 11 is set between the upper baffle 4 and the lower baffle 5. The hydraulic cylinder 1 is fixed above the conveyor roller 12, and the clamp 6 is fixed on the piston rod 9 of the hydraulic cylinder 11. The hydraulic cylinder 11 can be replaced by a pneumatic cylinder, and the number of hydraulic cylinders is not limited to one. The piston rod 9 retracts above the guide pressure roller 10.

[0017] The hot steel coil is transported by the coil transport trolley 1 to the top of the ground roller 2. The coil transport trolley 1 descends, and the steel coil falls onto the ground roller 2. The upper baffle 4 extends to 100mm from the steel coil and stops. The ground roller 2 rotates, causing the steel coil 3 to rotate clockwise. After the strip head is exposed, the ground roller 2 stops rotating, and the piston rod 9 extends to the clamp 6, which presses against the strip head and tightens it. The ground roller 2 continues to rotate, causing the steel coil 3 to continue rotating clockwise, while the piston rod 9 retracts, and the clamp 6 tightens the strip head. When the strip head is pulled to the guide pressure roller 10, the ground roller 2 stops rotating, the clamp 6 opens, and the piston rod 9 continues to retract to the hydraulic cylinder 11. The guide pressure roller 10 presses down on the strip while the ground roller 2 rotates, causing the steel coil 3 to continue rotating clockwise, allowing the strip to enter the conveyor roller table 12. Once the strip has been uncoiled to the appropriate length, the ground roller 2 stops rotating, and the guide pressure roller 10 rises away from the strip. The blade 7 on the shearing machine presses down to cut the strip steel, and the conveyor roller 12 moves forward until all the sheared steel plates are on the conveyor roller 12. The ground roller 2 rotates, causing the steel coil 3 to rotate counterclockwise, and the steel coil is rewound. The coil transport trolley 1 rises and lifts the steel coil 3 to transport the steel coil out of the uncoiler.

Claims

1. A mandrelless uncoiling auxiliary device for hot steel coils, comprising a ground roller (2), a steel coil (3), an upper baffle (4), a lower baffle (5), a shearing machine, a guide pressure roller (10), and a conveyor roller table (12), wherein the shearing machine, the ground roller (2), and the steel coil (3) on the ground roller (2) are located on one side of the conveyor roller table (12), the upper baffle (4) and the lower baffle (5) are located between the shearing machine and the ground roller (2), the guide pressure roller (10) is located obliquely above the conveyor roller table (12), and the steel coil (3) on the ground roller (2) is located obliquely below the conveyor roller table (12), and the upper baffle (4), the lower baffle (5), and the guide pressure roller (10) cooperate with the strip steel, characterized in that: A clamp (6) driven by a hydraulic cylinder (11) is provided between the upper baffle (4) and the lower baffle (5).

2. A hot coil coreless unwinding auxiliary device according to claim 1, characterized in that: The cylinder barrel of the hydraulic cylinder (11) is fixed on the bracket, and the piston rod (9) of the hydraulic cylinder is driven to connect with the clamp (6).

3. A hot coil coreless unwinding auxiliary device according to claim 2, characterized in that: The clamp (6) engages with the head of the steel coil (3).

4. A hot coil coreless unwinding auxiliary device according to claim 2, characterized in that: The cylinder of the hydraulic cylinder (11) is located above the conveyor roller (12).

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